diff --git a/README.md b/README.md
index 11f16b4be..03148c0bc 100644
--- a/README.md
+++ b/README.md
@@ -92,13 +92,13 @@ server.start();
 
 ## Using Node/npm Dependencies
 
-### Whitelisting Packages
+### Allowlisting Packages
 
 When your app is running in FastBoot, it may need to use Node packages
 to replace features that are available only in the browser.
 
 For security reasons, your Ember app running in FastBoot can only access
-packages that you have explicitly whitelisted.
+packages that you have explicitly listed as allowed.
 
 To allow your app to require a package, add it to the
 `fastbootDependencies` array in your app's `package.json`:
@@ -132,14 +132,14 @@ hash.** Built-in modules (`path`, `fs`, etc.) only need to be added to
 
 From your Ember.js app, you can run `FastBoot.require()` to require a
 package. This is identical to the CommonJS `require` except it checks
-all requests against the whitelist first.
+all requests against the allowlist first.
 
 ```js
 let path = FastBoot.require('path');
 let filePath = path.join('tmp', session.getID());
 ```
 
-If you attempt to require a package that is not in the whitelist,
+If you attempt to require a package that is not in the allowlist,
 FastBoot will raise an exception.
 
 Note that the `FastBoot` global is **only** available when running in
@@ -273,14 +273,14 @@ module.exports = function(environment) {
     },
 
     fastboot: {
-      hostWhitelist: ['example.com', 'subdomain.example.com', /^localhost:\d+$/]
+      hostAllowList: ['example.com', 'subdomain.example.com', /^localhost:\d+$/]
     }
   };
   // ...
 };
 ```
 
-The `hostWhitelist` can be a string or RegExp to match multiple hosts.
+The `hostAllowList` can be a string or RegExp to match multiple hosts.
 Care should be taken when using a RegExp, as the host function relies on
 the `Host` HTTP header, which can be forged. You could potentially allow
 a malicious request if your RegExp is too permissive when using the `host`
@@ -288,8 +288,8 @@ when making subsequent requests.
 
 Retrieving `host` will error on 2 conditions:
 
- 1. you do not have a `hostWhitelist` defined
- 2. the `Host` header does not match an entry in your `hostWhitelist`
+ 1. you do not have a `hostAllowList` defined
+ 2. the `Host` header does not match an entry in your `hostAllowList`
 
 ### Query Parameters
 
diff --git a/packages/ember-cli-fastboot/fastboot/initializers/ajax.js b/packages/ember-cli-fastboot/fastboot/initializers/ajax.js
index eeef2b9ee..36c475779 100644
--- a/packages/ember-cli-fastboot/fastboot/initializers/ajax.js
+++ b/packages/ember-cli-fastboot/fastboot/initializers/ajax.js
@@ -14,7 +14,7 @@ var nodeAjax = function(options) {
     try {
       options.url = protocol + '//' + get(this, 'fastboot.request.host') + options.url;
     } catch (fbError) {
-      throw new Error('You are using Ember Data with no host defined in your adapter. This will attempt to use the host of the FastBoot request, which is not configured for the current host of this request. Please set the hostWhitelist property for in your environment.js. FastBoot Error: ' + fbError.message);
+      throw new Error('You are using Ember Data with no host defined in your adapter. This will attempt to use the host of the FastBoot request, which is not configured for the current host of this request. Please set the hostAllowList property for in your environment.js. FastBoot Error: ' + fbError.message);
     }
   }
 
diff --git a/packages/ember-cli-fastboot/index.js b/packages/ember-cli-fastboot/index.js
index cf275c016..6469c50f6 100644
--- a/packages/ember-cli-fastboot/index.js
+++ b/packages/ember-cli-fastboot/index.js
@@ -237,7 +237,7 @@ module.exports = {
 
   /**
    * Need to handroll our own clone algorithm since JSON.stringy changes regex
-   * to empty objects which breaks hostWhiteList property of fastboot.
+   * to empty objects which breaks hostAllowList property of fastboot.
    *
    * @param {Object} config
    */
diff --git a/packages/ember-cli-fastboot/lib/broccoli/fastboot-config.js b/packages/ember-cli-fastboot/lib/broccoli/fastboot-config.js
index d66c80a29..a67a04286 100644
--- a/packages/ember-cli-fastboot/lib/broccoli/fastboot-config.js
+++ b/packages/ember-cli-fastboot/lib/broccoli/fastboot-config.js
@@ -1,14 +1,13 @@
 /* eslint-env node */
 'use strict';
 
-const fs     = require('fs');
-const fmt    = require('util').format;
-const uniq   = require('ember-cli-lodash-subset').uniq;
-const merge  = require('ember-cli-lodash-subset').merge;
-const md5Hex = require('md5-hex');
-const path   = require('path');
-const Plugin = require('broccoli-plugin');
-
+const fs        = require('fs');
+const fmt       = require('util').format;
+const uniq      = require('ember-cli-lodash-subset').uniq;
+const merge     = require('ember-cli-lodash-subset').merge;
+const md5Hex    = require('md5-hex');
+const path      = require('path');
+const Plugin    = require('broccoli-plugin');
 const stringify = require('json-stable-stringify');
 
 const LATEST_SCHEMA_VERSION = 3;
@@ -50,7 +49,7 @@ module.exports = class FastBootConfig extends Plugin {
     this.buildConfig();
     this.buildDependencies();
     this.buildManifest();
-    this.buildHostWhitelist();
+    this.buildHostAllowList();
 
     let outputPath = path.join(this.outputPath, 'package.json');
     this.writeFileIfContentChanged(outputPath, this.toJSONString());
@@ -85,7 +84,7 @@ module.exports = class FastBootConfig extends Plugin {
 
   buildDependencies() {
     let dependencies = {};
-    let moduleWhitelist = [];
+    let moduleAllowlist = [];
     let ui = this.ui;
 
     eachAddonPackage(this.project, pkg => {
@@ -101,7 +100,7 @@ module.exports = class FastBootConfig extends Plugin {
             return;
           }
 
-          moduleWhitelist.push(dep);
+          moduleAllowlist.push(dep);
 
           if (version) {
             dependencies[dep] = version;
@@ -115,7 +114,7 @@ module.exports = class FastBootConfig extends Plugin {
 
     if (projectDeps) {
       projectDeps.forEach(dep => {
-        moduleWhitelist.push(dep);
+        moduleAllowlist.push(dep);
 
         let version = pkg.dependencies && pkg.dependencies[dep];
         if (version) {
@@ -125,7 +124,7 @@ module.exports = class FastBootConfig extends Plugin {
     }
 
     this.dependencies = dependencies;
-    this.moduleWhitelist = uniq(moduleWhitelist);
+    this.moduleAllowlist = uniq(moduleAllowlist);
   }
 
   updateFastBootManifest(manifest) {
@@ -160,9 +159,12 @@ module.exports = class FastBootConfig extends Plugin {
     this.manifest = this.updateFastBootManifest(manifest);
   }
 
-  buildHostWhitelist() {
+  buildHostAllowList() {
     if (this.fastbootAppConfig) {
-      this.hostWhitelist = this.fastbootAppConfig.hostWhitelist;
+      if ('hostWhitelist' in this.fastbootAppConfig) {
+        this.ui.writeLine('Please update your fastboot config to use `hostAllowList` instead of the deprecated `hostWhitelist`');
+      }
+      this.hostAllowList = this.fastbootAppConfig.hostAllowList || this.fastbootAppConfig.hostWhitelist
     }
   }
 
@@ -170,22 +172,22 @@ module.exports = class FastBootConfig extends Plugin {
     return stringify({
       dependencies: this.dependencies,
       fastboot: {
-        moduleWhitelist: this.moduleWhitelist,
+        moduleAllowlist: this.moduleAllowlist,
         schemaVersion: LATEST_SCHEMA_VERSION,
         manifest: this.manifest,
-        hostWhitelist: this.normalizeHostWhitelist(),
+        hostAllowList: this.normalizeHostAllowList(),
         config: this.fastbootConfig,
         appName: this.appName,
       }
     }, null, 2);
   }
 
-  normalizeHostWhitelist() {
-    if (!this.hostWhitelist) {
+  normalizeHostAllowList() {
+    if (!this.hostAllowList) {
       return;
     }
 
-    return this.hostWhitelist.map(function(entry) {
+    return this.hostAllowList.map(function(entry) {
       // Is a regex
       if (entry.source) {
         return '/' + entry.source + '/';
diff --git a/packages/ember-cli-fastboot/package.json b/packages/ember-cli-fastboot/package.json
index 7d979d555..196f539ce 100644
--- a/packages/ember-cli-fastboot/package.json
+++ b/packages/ember-cli-fastboot/package.json
@@ -46,7 +46,6 @@
     "body-parser": "^1.18.3",
     "broccoli-asset-rev": "^3.0.0",
     "broccoli-test-helper": "^1.5.0",
-    "co": "4.6.0",
     "chai": "^4.1.2",
     "chai-fs": "^2.0.0",
     "chai-string": "^1.4.0",
diff --git a/packages/ember-cli-fastboot/test/fastboot-config-test.js b/packages/ember-cli-fastboot/test/fastboot-config-test.js
index 1078f84d8..13b834d74 100644
--- a/packages/ember-cli-fastboot/test/fastboot-config-test.js
+++ b/packages/ember-cli-fastboot/test/fastboot-config-test.js
@@ -1,42 +1,59 @@
+/* eslint-env node */
 'use strict';
 
-const expect = require('chai').use(require('chai-string')).expect;
-const RSVP = require('rsvp');
-const request = RSVP.denodeify(require('request'));
-
-const AddonTestApp = require('ember-cli-addon-tests').AddonTestApp;
-
-describe('FastBoot config', function() {
-  this.timeout(400000);
+const expect = require('chai').expect;
+const helpers = require('broccoli-test-helper');
+const MockUI = require('console-ui/mock')
+const createBuilder = helpers.createBuilder;
+const createTempDir = helpers.createTempDir;
+const FastbootConfig = require('../lib/broccoli/fastboot-config');
+
+
+describe('FastbootConfig', function() {
+  let input;
+  let output;
+  let subject;
+  let project;
+
+  beforeEach(async function() {
+    input = await createTempDir();
+    project = {
+      addons: [],
+      pkg: {},
+    };
+    subject = new FastbootConfig(input.path(), {
+      project,
+      outputPaths: {
+        app: { js: 'app.js' },
+        vendor: { js: 'vendor.js' },
+      },
+      appConfig: {
+        modulePrefix: 'app',
+      },
+      ui: new MockUI(),
+      fastbootAppConfig: {
+        hostWhitelist: ['example.com', 'subdomain.example.com']
+      }
+    });
+    output = createBuilder(subject);
+  });
 
-  let app;
+  afterEach(async function() {
+    await input.dispose();
+    await output.dispose();
+  });
 
-  before(function() {
-    app = new AddonTestApp();
+  it('it replace hostWhitelist with hostAllowList and warns user to update the config to hostAllowList', async function() {
+    input.write({});
 
-    return app.create('fastboot-config', { emberVersion: 'latest'})
-      .then(function() {
-        return app.startServer({
-          command: 'serve'
-        });
-      });
-  });
+    await output.build();
 
-  after(function() {
-    return app.stopServer();
-  });
+    expect(
+      output.read()
+    ).to.deep.equal({
+      'package.json': `{"dependencies":{},"fastboot":{"appName":"app","config":{"app":{"modulePrefix":"app"}},"hostAllowList":["example.com","subdomain.example.com"],"manifest":{"appFiles":["app.js","app-fastboot.js"],"htmlFile":"index.html","vendorFiles":["vendor.js"]},"moduleAllowlist":[],"schemaVersion":3}}`
+    });
 
-  it('provides sandbox globals', function() {
-    return request({
-      url: 'http://localhost:49741/',
-      headers: {
-        'Accept': 'text/html'
-      }
-    })
-      .then(function(response) {
-        expect(response.statusCode).to.equal(200);
-        expect(response.headers['content-type']).to.equalIgnoreCase('text/html; charset=utf-8');
-        expect(response.body).to.contain('<h1>My Global</h1>');
-      });
+    expect(output.builder.outputNode.ui.output).to.contain('Please update your fastboot config to use `hostAllowList` instead of the deprecated `hostWhitelist`');
   });
 });
diff --git a/packages/ember-cli-fastboot/test/fixtures/fastboot-config/config/environment.js b/packages/ember-cli-fastboot/test/fixtures/fastboot-config/config/environment.js
index 0f4973eed..d3e6d010e 100644
--- a/packages/ember-cli-fastboot/test/fixtures/fastboot-config/config/environment.js
+++ b/packages/ember-cli-fastboot/test/fixtures/fastboot-config/config/environment.js
@@ -19,7 +19,7 @@ module.exports = function(environment) {
     },
 
     fastboot: {
-      hostWhitelist: ['example.com', 'subdomain.example.com', /localhost:\d+/]
+      hostAllowList: ['example.com', 'subdomain.example.com', /localhost:\d+/]
     }
   };
 
diff --git a/packages/ember-cli-fastboot/test/fixtures/fastboot-location-config/config/environment.js b/packages/ember-cli-fastboot/test/fixtures/fastboot-location-config/config/environment.js
index d77083df7..9beadcd63 100644
--- a/packages/ember-cli-fastboot/test/fixtures/fastboot-location-config/config/environment.js
+++ b/packages/ember-cli-fastboot/test/fixtures/fastboot-location-config/config/environment.js
@@ -8,7 +8,7 @@ module.exports = function(environment) {
     modulePrefix: 'fastboot-location-config',
     fastboot: {
       fastbootHeaders: false,
-      hostWhitelist: [/localhost:\d+/],
+      hostAllowList: [/localhost:\d+/],
       redirectCode: 302,
     }
   };
diff --git a/packages/ember-cli-fastboot/test/fixtures/fastboot-location/config/environment.js b/packages/ember-cli-fastboot/test/fixtures/fastboot-location/config/environment.js
index cf7bc0667..763f39311 100644
--- a/packages/ember-cli-fastboot/test/fixtures/fastboot-location/config/environment.js
+++ b/packages/ember-cli-fastboot/test/fixtures/fastboot-location/config/environment.js
@@ -8,7 +8,7 @@ module.exports = function(environment) {
     modulePrefix: 'fastboot-location',
     fastboot: {
       fastbootHeaders: true,
-      hostWhitelist: [/localhost:\d+/]
+      hostAllowList: [/localhost:\d+/]
     }
   };
 
diff --git a/packages/ember-cli-fastboot/test/fixtures/request/config/environment.js b/packages/ember-cli-fastboot/test/fixtures/request/config/environment.js
index 0dd5a0b1b..9aac8aec4 100644
--- a/packages/ember-cli-fastboot/test/fixtures/request/config/environment.js
+++ b/packages/ember-cli-fastboot/test/fixtures/request/config/environment.js
@@ -19,7 +19,7 @@ module.exports = function(environment) {
     },
 
     fastboot: {
-      hostWhitelist: ['example.com', 'subdomain.example.com', /localhost:\d+/]
+      hostAllowList: ['example.com', 'subdomain.example.com', /localhost:\d+/]
     }
   };
 
diff --git a/packages/ember-cli-fastboot/test/new-package-json-test.js b/packages/ember-cli-fastboot/test/new-package-json-test.js
index 92496d795..2e675ce54 100644
--- a/packages/ember-cli-fastboot/test/new-package-json-test.js
+++ b/packages/ember-cli-fastboot/test/new-package-json-test.js
@@ -5,7 +5,6 @@ const expect = require('chai').expect;
 const helpers = require('broccoli-test-helper');
 const createBuilder = helpers.createBuilder;
 const createTempDir = helpers.createTempDir;
-const co = require('co');
 const FastbootConfig = require('../lib/broccoli/fastboot-config');
 
 describe('FastbootConfig', function() {
@@ -50,8 +49,10 @@ describe('FastbootConfig', function() {
 
     await output.build();
 
-    expect(output.read()).to.deep.equal({
-      'package.json': `{"dependencies":{},"fastboot":{"appName":"app","config":{"app":{"modulePrefix":"app"}},"manifest":{"appFiles":["app.js","app-fastboot.js"],"htmlFile":"index.html","vendorFiles":["vendor.js"]},"moduleWhitelist":[],"schemaVersion":3}}`,
+    expect(
+      output.read()
+    ).to.deep.equal({
+      'package.json': `{"dependencies":{},"fastboot":{"appName":"app","config":{"app":{"modulePrefix":"app"}},"manifest":{"appFiles":["app.js","app-fastboot.js"],"htmlFile":"index.html","vendorFiles":["vendor.js"]},"moduleAllowlist":[],"schemaVersion":3}}`
     });
 
     await output.build();
@@ -72,8 +73,10 @@ describe('FastbootConfig', function() {
       'package.json': 'change',
     });
 
-    expect(output.read()).to.deep.equal({
-      'package.json': `{"dependencies":{"apple":"*","orange":"^1.0.0"},"fastboot":{"appName":"app","config":{"app":{"modulePrefix":"app"}},"manifest":{"appFiles":["app.js","app-fastboot.js"],"htmlFile":"index.html","vendorFiles":["vendor.js"]},"moduleWhitelist":["apple","orange"],"schemaVersion":3}}`,
+    expect(
+      output.read()
+    ).to.deep.equal({
+      'package.json': `{"dependencies":{"apple":"*","orange":"^1.0.0"},"fastboot":{"appName":"app","config":{"app":{"modulePrefix":"app"}},"manifest":{"appFiles":["app.js","app-fastboot.js"],"htmlFile":"index.html","vendorFiles":["vendor.js"]},"moduleAllowlist":["apple","orange"],"schemaVersion":3}}`
     });
 
     project.pkg.fastbootDependencies = ['apple', 'orange'];
@@ -88,8 +91,10 @@ describe('FastbootConfig', function() {
 
     await output.build();
 
-    expect(output.read()).to.deep.equal({
-      'package.json': `{"dependencies":{"apple":"^3.0.0","orange":"^1.0.0"},"fastboot":{"appName":"app","config":{"app":{"modulePrefix":"app"}},"manifest":{"appFiles":["app.js","app-fastboot.js"],"htmlFile":"index.html","vendorFiles":["vendor.js"]},"moduleWhitelist":["apple","orange"],"schemaVersion":3}}`,
+    expect(
+      output.read()
+    ).to.deep.equal({
+      'package.json': `{"dependencies":{"apple":"^3.0.0","orange":"^1.0.0"},"fastboot":{"appName":"app","config":{"app":{"modulePrefix":"app"}},"manifest":{"appFiles":["app.js","app-fastboot.js"],"htmlFile":"index.html","vendorFiles":["vendor.js"]},"moduleAllowlist":["apple","orange"],"schemaVersion":3}}`
     });
   });
 });
diff --git a/packages/fastboot-app-server/test/fixtures/basic-app/package.json b/packages/fastboot-app-server/test/fixtures/basic-app/package.json
index 5159b4dd6..b14cd7007 100644
--- a/packages/fastboot-app-server/test/fixtures/basic-app/package.json
+++ b/packages/fastboot-app-server/test/fixtures/basic-app/package.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {},
   "fastboot": {
-    "moduleWhitelist": [],
+    "moduleAllowlist": [],
     "manifest": {
       "appFile": "assets/fastboot-test.js",
       "htmlFile": "index.html",
diff --git a/packages/fastboot-app-server/test/fixtures/broken-app/package.json b/packages/fastboot-app-server/test/fixtures/broken-app/package.json
index 5159b4dd6..b14cd7007 100644
--- a/packages/fastboot-app-server/test/fixtures/broken-app/package.json
+++ b/packages/fastboot-app-server/test/fixtures/broken-app/package.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {},
   "fastboot": {
-    "moduleWhitelist": [],
+    "moduleAllowlist": [],
     "manifest": {
       "appFile": "assets/fastboot-test.js",
       "htmlFile": "index.html",
diff --git a/packages/fastboot-app-server/test/fixtures/global-app/package.json b/packages/fastboot-app-server/test/fixtures/global-app/package.json
index af701d9c1..4d4334f6c 100644
--- a/packages/fastboot-app-server/test/fixtures/global-app/package.json
+++ b/packages/fastboot-app-server/test/fixtures/global-app/package.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {},
   "fastboot": {
-    "moduleWhitelist": [],
+    "moduleAllowlist": [],
     "manifest": {
       "appFile": "assets/fastboot-test.js",
       "htmlFile": "index.html",
diff --git a/packages/fastboot-express-middleware/test/fixtures/app-with-console-log/package.json b/packages/fastboot-express-middleware/test/fixtures/app-with-console-log/package.json
index e849cc739..7c90bab0d 100644
--- a/packages/fastboot-express-middleware/test/fixtures/app-with-console-log/package.json
+++ b/packages/fastboot-express-middleware/test/fixtures/app-with-console-log/package.json
@@ -1,11 +1,11 @@
 {
   "dependencies": {},
   "fastboot": {
-    "moduleWhitelist": [],
+    "moduleAllowlist": [],
     "manifest": {
       "appFile": "assets/fastboot-test.js",
       "htmlFile": "index.html",
       "vendorFile": "assets/vendor.js"
     }
   }
-}
\ No newline at end of file
+}
diff --git a/packages/fastboot-express-middleware/test/fixtures/app-with-metadata/assets/fastboot-app-fastboot.js b/packages/fastboot-express-middleware/test/fixtures/app-with-metadata/assets/fastboot-app-fastboot.js
index 6eee9dd1a..f1baaf329 100644
--- a/packages/fastboot-express-middleware/test/fixtures/app-with-metadata/assets/fastboot-app-fastboot.js
+++ b/packages/fastboot-express-middleware/test/fixtures/app-with-metadata/assets/fastboot-app-fastboot.js
@@ -31,7 +31,7 @@ define("fastboot-app/initializers/ajax", ["exports"], function (_exports) {
       try {
         options.url = protocol + '//' + get(this, 'fastboot.request.host') + options.url;
       } catch (fbError) {
-        throw new Error('You are using Ember Data with no host defined in your adapter. This will attempt to use the host of the FastBoot request, which is not configured for the current host of this request. Please set the hostWhitelist property for in your environment.js. FastBoot Error: ' + fbError.message);
+        throw new Error('You are using Ember Data with no host defined in your adapter. This will attempt to use the host of the FastBoot request, which is not configured for the current host of this request. Please set the hostAllowList property for in your environment.js. FastBoot Error: ' + fbError.message);
       }
     }
 
diff --git a/packages/fastboot-express-middleware/test/fixtures/app-with-metadata/assets/fastboot-app-fastboot.map b/packages/fastboot-express-middleware/test/fixtures/app-with-metadata/assets/fastboot-app-fastboot.map
index 4b1f00f58..459588878 100644
--- a/packages/fastboot-express-middleware/test/fixtures/app-with-metadata/assets/fastboot-app-fastboot.map
+++ b/packages/fastboot-express-middleware/test/fixtures/app-with-metadata/assets/fastboot-app-fastboot.map
@@ -1 +1 @@
-{"version":3,"sources":["app-factory.js","fastboot-app/initializers/ajax.js","fastboot-app/initializers/error-handler.js"],"sourcesContent":["define('~fastboot/app-factory', ['fastboot-app/app', 'fastboot-app/config/environment'], function(App, config) {\n  App = App['default'];\n  config = config['default'];\n\n  return {\n    'default': function() {\n      return App.create(config.APP);\n    }\n  };\n});\n","define(\"fastboot-app/initializers/ajax\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n  const {\n    get\n  } = Ember;\n\n  var nodeAjax = function (options) {\n    let httpRegex = /^https?:\\/\\//;\n    let protocolRelativeRegex = /^\\/\\//;\n    let protocol = get(this, 'fastboot.request.protocol');\n\n    if (protocolRelativeRegex.test(options.url)) {\n      options.url = protocol + options.url;\n    } else if (!httpRegex.test(options.url)) {\n      try {\n        options.url = protocol + '//' + get(this, 'fastboot.request.host') + options.url;\n      } catch (fbError) {\n        throw new Error('You are using Ember Data with no host defined in your adapter. This will attempt to use the host of the FastBoot request, which is not configured for the current host of this request. Please set the hostWhitelist property for in your environment.js. FastBoot Error: ' + fbError.message);\n      }\n    }\n\n    if (najax) {\n      najax(options);\n    } else {\n      throw new Error('najax does not seem to be defined in your app. Did you override it via `addOrOverrideSandboxGlobals` in the fastboot server?');\n    }\n  };\n\n  var _default = {\n    name: 'ajax-service',\n    initialize: function (application) {\n      application.register('ajax:node', nodeAjax, {\n        instantiate: false\n      });\n      application.inject('adapter', '_ajaxRequest', 'ajax:node');\n      application.inject('adapter', 'fastboot', 'service:fastboot');\n    }\n  };\n  _exports.default = _default;\n});","define(\"fastboot-app/initializers/error-handler\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n   * Initializer to attach an `onError` hook to your app running in fastboot. It catches any run loop\n   * exceptions and other errors and prevents the node process from crashing.\n   *\n   */\n  var _default = {\n    name: 'error-handler',\n    initialize: function () {\n      if (!Ember.onerror) {\n        // if no onerror handler is defined, define one for fastboot environments\n        Ember.onerror = function (err) {\n          const errorMessage = `There was an error running your app in fastboot. More info about the error: \\n ${err.stack || err}`;\n          console.error(errorMessage);\n        };\n      }\n    }\n  };\n  _exports.default = _default;\n});"],"names":[],"mappings":"AAAA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;ACTA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AC3CA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;","file":"fastboot-app-fastboot.js"}
\ No newline at end of file
+{"version":3,"sources":["app-factory.js","fastboot-app/initializers/ajax.js","fastboot-app/initializers/error-handler.js"],"sourcesContent":["define('~fastboot/app-factory', ['fastboot-app/app', 'fastboot-app/config/environment'], function(App, config) {\n  App = App['default'];\n  config = config['default'];\n\n  return {\n    'default': function() {\n      return App.create(config.APP);\n    }\n  };\n});\n","define(\"fastboot-app/initializers/ajax\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n  const {\n    get\n  } = Ember;\n\n  var nodeAjax = function (options) {\n    let httpRegex = /^https?:\\/\\//;\n    let protocolRelativeRegex = /^\\/\\//;\n    let protocol = get(this, 'fastboot.request.protocol');\n\n    if (protocolRelativeRegex.test(options.url)) {\n      options.url = protocol + options.url;\n    } else if (!httpRegex.test(options.url)) {\n      try {\n        options.url = protocol + '//' + get(this, 'fastboot.request.host') + options.url;\n      } catch (fbError) {\n        throw new Error('You are using Ember Data with no host defined in your adapter. This will attempt to use the host of the FastBoot request, which is not configured for the current host of this request. Please set the hostAllowList property for in your environment.js. FastBoot Error: ' + fbError.message);\n      }\n    }\n\n    if (najax) {\n      najax(options);\n    } else {\n      throw new Error('najax does not seem to be defined in your app. Did you override it via `addOrOverrideSandboxGlobals` in the fastboot server?');\n    }\n  };\n\n  var _default = {\n    name: 'ajax-service',\n    initialize: function (application) {\n      application.register('ajax:node', nodeAjax, {\n        instantiate: false\n      });\n      application.inject('adapter', '_ajaxRequest', 'ajax:node');\n      application.inject('adapter', 'fastboot', 'service:fastboot');\n    }\n  };\n  _exports.default = _default;\n});","define(\"fastboot-app/initializers/error-handler\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n   * Initializer to attach an `onError` hook to your app running in fastboot. It catches any run loop\n   * exceptions and other errors and prevents the node process from crashing.\n   *\n   */\n  var _default = {\n    name: 'error-handler',\n    initialize: function () {\n      if (!Ember.onerror) {\n        // if no onerror handler is defined, define one for fastboot environments\n        Ember.onerror = function (err) {\n          const errorMessage = `There was an error running your app in fastboot. More info about the error: \\n ${err.stack || err}`;\n          console.error(errorMessage);\n        };\n      }\n    }\n  };\n  _exports.default = _default;\n});"],"names":[],"mappings":"AAAA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;ACTA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AC3CA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;","file":"fastboot-app-fastboot.js"}
diff --git a/packages/fastboot-express-middleware/test/fixtures/app-with-metadata/assets/vendor.js b/packages/fastboot-express-middleware/test/fixtures/app-with-metadata/assets/vendor.js
index 2257b2542..2f29af278 100644
--- a/packages/fastboot-express-middleware/test/fixtures/app-with-metadata/assets/vendor.js
+++ b/packages/fastboot-express-middleware/test/fixtures/app-with-metadata/assets/vendor.js
@@ -504,10 +504,10 @@ define("@ember/-internals/console/index", ["exports", "@ember/debug", "@ember/de
   /**
     Inside Ember-Metal, simply uses the methods from `imports.console`.
     Override this to provide more robust logging functionality.
-  
+
     @class Logger
     @deprecated Use 'console' instead
-  
+
     @namespace Ember
     @public
   */
@@ -704,14 +704,14 @@ define("@ember/-internals/container/index", ["exports", "@ember/-internals/owner
   }
   /**
    A container used to instantiate and cache objects.
-  
+
    Every `Container` must be associated with a `Registry`, which is referenced
    to determine the factory and options that should be used to instantiate
    objects.
-  
+
    The public API for `Container` is still in flux and should not be considered
    stable.
-  
+
    @private
    @class Container
    */
@@ -1244,12 +1244,12 @@ define("@ember/-internals/container/index", ["exports", "@ember/-internals/owner
   /**
    A registry used to store factory and option information keyed
    by type.
-  
+
    A `Registry` stores the factory and option information needed by a
    `Container` to instantiate and cache objects.
-  
+
    The API for `Registry` is still in flux and should not be considered stable.
-  
+
    @private
    @class Registry
    @since 1.11.0
@@ -1982,7 +1982,7 @@ define("@ember/-internals/environment/index", ["exports", "@ember/debug", "@embe
     desired properties to a global hash named `EmberENV` (or `ENV` for
     backwards compatibility with earlier versions of Ember). The `EmberENV`
     hash must be created before loading Ember.
-  
+
     @class EmberENV
     @type Object
     @public
@@ -2295,30 +2295,30 @@ define("@ember/-internals/extension-support/lib/container_debug_adapter", ["expo
     with tools that debug Ember such as the
     [Ember Inspector](https://github.com/emberjs/ember-inspector)
     for Chrome and Firefox.
-  
+
     This class can be extended by a custom resolver implementer
     to override some of the methods with library-specific code.
-  
+
     The methods likely to be overridden are:
-  
+
     * `canCatalogEntriesByType`
     * `catalogEntriesByType`
-  
+
     The adapter will need to be registered
     in the application's container as `container-debug-adapter:main`.
-  
+
     Example:
-  
+
     ```javascript
     Application.initializer({
       name: "containerDebugAdapter",
-  
+
       initialize(application) {
         application.register('container-debug-adapter:main', require('app/container-debug-adapter'));
       }
     });
     ```
-  
+
     @class ContainerDebugAdapter
     @extends EmberObject
     @since 1.5.0
@@ -2401,13 +2401,13 @@ define("@ember/-internals/extension-support/lib/data_adapter", ["exports", "@emb
     interface with tools that debug Ember such
     as the [Ember Inspector](https://github.com/emberjs/ember-inspector)
     for Chrome and Firefox.
-  
+
     This class will be extended by a persistence library
     which will override some of the methods with
     library-specific code.
-  
+
     The methods likely to be overridden are:
-  
+
     * `getFilters`
     * `detect`
     * `columnsForType`
@@ -2417,22 +2417,22 @@ define("@ember/-internals/extension-support/lib/data_adapter", ["exports", "@emb
     * `getRecordFilterValues`
     * `getRecordColor`
     * `observeRecord`
-  
+
     The adapter will need to be registered
     in the application's container as `dataAdapter:main`.
-  
+
     Example:
-  
+
     ```javascript
     Application.initializer({
       name: "data-adapter",
-  
+
       initialize: function(application) {
         application.register('data-adapter:main', DS.DataAdapter);
       }
     });
     ```
-  
+
     @class DataAdapter
     @extends EmberObject
     @public
@@ -2969,105 +2969,105 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
     A component is an isolated piece of UI, represented by a template and an
     optional class. When a component has a class, its template's `this` value
     is an instance of the component class.
-  
+
     ## Template-only Components
-  
+
     The simplest way to create a component is to create a template file in
     `app/templates/components`. For example, if you name a template
     `app/templates/components/person-profile.hbs`:
-  
+
     ```app/templates/components/person-profile.hbs
     <h1>{{@person.name}}</h1>
     <img src={{@person.avatar}}>
     <p class='signature'>{{@person.signature}}</p>
     ```
-  
+
     You will be able to use `<PersonProfile />` to invoke this component elsewhere
     in your application:
-  
+
     ```app/templates/application.hbs
     <PersonProfile @person={{this.currentUser}} />
     ```
-  
+
     Note that component names are capitalized here in order to distinguish them
     from regular HTML elements, but they are dasherized in the file system.
-  
+
     While the angle bracket invocation form is generally preferred, it is also
     possible to invoke the same component with the `{{person-profile}}` syntax:
-  
+
     ```app/templates/application.hbs
     {{person-profile person=this.currentUser}}
     ```
-  
+
     Note that with this syntax, you use dashes in the component name and
     arguments are passed without the `@` sign.
-  
+
     In both cases, Ember will render the content of the component template we
     created above. The end result will be something like this:
-  
+
     ```html
     <h1>Tomster</h1>
     <img src="https://emberjs.com/tomster.jpg">
     <p class='signature'>Out of office this week</p>
     ```
-  
+
     ## File System Nesting
-  
+
     Components can be nested inside sub-folders for logical groupping. For
     example, if we placed our template in
     `app/templates/components/person/short-profile.hbs`, we can invoke it as
     `<Person::ShortProfile />`:
-  
+
     ```app/templates/application.hbs
     <Person::ShortProfile @person={{this.currentUser}} />
     ```
-  
+
     Or equivalently, `{{person/short-profile}}`:
-  
+
     ```app/templates/application.hbs
     {{person/short-profile person=this.currentUser}}
     ```
-  
+
     ## Yielding Contents
-  
+
     You can use `yield` inside a template to include the **contents** of any block
     attached to the component. The block will be executed in its original context:
-  
+
     ```handlebars
     <PersonProfile @person={{this.currentUser}}>
       <p>Admin mode</p>
       {{! Executed in the current context. }}
     </PersonProfile>
     ```
-  
+
     or
-  
+
     ```handlebars
     {{#person-profile person=this.currentUser}}
       <p>Admin mode</p>
       {{! Executed in the current context. }}
     {{/person-profile}}
     ```
-  
+
     ```app/templates/components/person-profile.hbs
     <h1>{{@person.name}}</h1>
     {{yield}}
     ```
-  
+
     ## Customizing Components With JavaScript
-  
+
     If you want to customize the component in order to handle events, transform
     arguments or maintain internal state, you implement a subclass of `Component`.
-  
+
     One example is to add computed properties to your component:
-  
+
     ```app/components/person-profile.js
     import Component from '@ember/component';
-  
+
     export default Component.extend({
       displayName: computed('person.title', 'person.firstName', 'person.lastName', function() {
         let { title, firstName, lastName } = this;
-  
+
         if (title) {
           return `${title} ${lastName}`;
         } else {
@@ -3076,352 +3076,352 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
       })
     });
     ```
-  
+
     And then use it in the component's template:
-  
+
     ```app/templates/components/person-profile.hbs
     <h1>{{this.displayName}}</h1>
     {{yield}}
     ```
-  
+
     ## Customizing a Component's HTML Element in JavaScript
-  
+
     ### HTML Tag
-  
+
     The default HTML tag name used for a component's HTML representation is `div`.
     This can be customized by setting the `tagName` property.
-  
+
     Consider the following component class:
-  
+
     ```app/components/emphasized-paragraph.js
     import Component from '@ember/component';
-  
+
     export default Component.extend({
       tagName: 'em'
     });
     ```
-  
+
     When invoked, this component would produce output that looks something like
     this:
-  
+
     ```html
     <em id="ember1" class="ember-view"></em>
     ```
-  
+
     ### HTML `class` Attribute
-  
+
     The HTML `class` attribute of a component's tag can be set by providing a
     `classNames` property that is set to an array of strings:
-  
+
     ```app/components/my-widget.js
     import Component from '@ember/component';
-  
+
     export default Component.extend({
       classNames: ['my-class', 'my-other-class']
     });
     ```
-  
+
     Invoking this component will produce output that looks like this:
-  
+
     ```html
     <div id="ember1" class="ember-view my-class my-other-class"></div>
     ```
-  
+
     `class` attribute values can also be set by providing a `classNameBindings`
     property set to an array of properties names for the component. The return
     value of these properties will be added as part of the value for the
     components's `class` attribute. These properties can be computed properties:
-  
+
     ```app/components/my-widget.js
     import Component from '@ember/component';
     import { computed } from '@ember/object';
-  
+
     export default Component.extend({
       classNames: ['my-class', 'my-other-class'],
       classNameBindings: ['propertyA', 'propertyB'],
-  
+
       propertyA: 'from-a',
       propertyB: computed(function() {
         if (someLogic) { return 'from-b'; }
       })
     });
     ```
-  
+
     Invoking this component will produce HTML that looks like:
-  
+
     ```html
     <div id="ember1" class="ember-view my-class my-other-class from-a from-b"></div>
     ```
-  
+
     Note that `classNames` and `classNameBindings` is in addition to the `class`
     attribute passed with the angle bracket invocation syntax. Therefore, if this
     component was invoked like so:
-  
+
     ```handlebars
     <MyWidget class="from-invocation" />
     ```
-  
+
     The resulting HTML will look similar to this:
-  
+
     ```html
     <div id="ember1" class="from-invocation ember-view my-class my-other-class from-a from-b"></div>
     ```
-  
+
     If the value of a class name binding returns a boolean the property name
     itself will be used as the class name if the property is true. The class name
     will not be added if the value is `false` or `undefined`.
-  
+
     ```app/components/my-widget.js
     import Component from '@ember/component';
-  
+
     export default Component.extend({
       classNameBindings: ['hovered'],
-  
+
       hovered: true
     });
     ```
-  
+
     Invoking this component will produce HTML that looks like:
-  
+
     ```html
     <div id="ember1" class="ember-view hovered"></div>
     ```
-  
+
     ### Custom Class Names for Boolean Values
-  
+
     When using boolean class name bindings you can supply a string value other
     than the property name for use as the `class` HTML attribute by appending the
     preferred value after a ":" character when defining the binding:
-  
+
     ```app/components/my-widget.js
     import Component from '@ember/component';
-  
+
     export default Component.extend({
       classNameBindings: ['awesome:so-very-cool'],
-  
+
       awesome: true
     });
     ```
-  
+
     Invoking this component will produce HTML that looks like:
-  
+
     ```html
     <div id="ember1" class="ember-view so-very-cool"></div>
     ```
-  
+
     Boolean value class name bindings whose property names are in a
     camelCase-style format will be converted to a dasherized format:
-  
+
     ```app/components/my-widget.js
     import Component from '@ember/component';
-  
+
     export default Component.extend({
       classNameBindings: ['isUrgent'],
-  
+
       isUrgent: true
     });
     ```
-  
+
     Invoking this component will produce HTML that looks like:
-  
+
     ```html
     <div id="ember1" class="ember-view is-urgent"></div>
     ```
-  
+
     Class name bindings can also refer to object values that are found by
     traversing a path relative to the component itself:
-  
+
     ```app/components/my-widget.js
     import Component from '@ember/component';
     import EmberObject from '@ember/object';
-  
+
     export default Component.extend({
       classNameBindings: ['messages.empty'],
-  
+
       messages: EmberObject.create({
         empty: true
       })
     });
     ```
-  
+
     Invoking this component will produce HTML that looks like:
-  
+
     ```html
     <div id="ember1" class="ember-view empty"></div>
     ```
-  
+
     If you want to add a class name for a property which evaluates to true and
     and a different class name if it evaluates to false, you can pass a binding
     like this:
-  
+
     ```app/components/my-widget.js
     import Component from '@ember/component';
-  
+
     export default Component.extend({
       classNameBindings: ['isEnabled:enabled:disabled'],
       isEnabled: true
     });
     ```
-  
+
     Invoking this component will produce HTML that looks like:
-  
+
     ```html
     <div id="ember1" class="ember-view enabled"></div>
     ```
-  
+
     When isEnabled is `false`, the resulting HTML representation looks like this:
-  
+
     ```html
     <div id="ember1" class="ember-view disabled"></div>
     ```
-  
+
     This syntax offers the convenience to add a class if a property is `false`:
-  
+
     ```app/components/my-widget.js
     import Component from '@ember/component';
-  
+
     // Applies no class when isEnabled is true and class 'disabled' when isEnabled is false
     export default Component.extend({
       classNameBindings: ['isEnabled::disabled'],
       isEnabled: true
     });
     ```
-  
+
     Invoking this component when the `isEnabled` property is true will produce
     HTML that looks like:
-  
+
     ```html
     <div id="ember1" class="ember-view"></div>
     ```
-  
+
     Invoking it when the `isEnabled` property on the component is `false` will
     produce HTML that looks like:
-  
+
     ```html
     <div id="ember1" class="ember-view disabled"></div>
     ```
-  
+
     Updates to the value of a class name binding will result in automatic update
     of the  HTML `class` attribute in the component's rendered HTML
     representation. If the value becomes `false` or `undefined` the class name
     will be removed.
-  
+
     Both `classNames` and `classNameBindings` are concatenated properties. See
     [EmberObject](/ember/release/classes/EmberObject) documentation for more
     information about concatenated properties.
-  
+
     ### Other HTML Attributes
-  
+
     The HTML attribute section of a component's tag can be set by providing an
     `attributeBindings` property set to an array of property names on the component.
     The return value of these properties will be used as the value of the component's
     HTML associated attribute:
-  
+
     ```app/components/my-anchor.js
     import Component from '@ember/component';
-  
+
     export default Component.extend({
       tagName: 'a',
       attributeBindings: ['href'],
-  
+
       href: 'http://google.com'
     });
     ```
-  
+
     Invoking this component will produce HTML that looks like:
-  
+
     ```html
     <a id="ember1" class="ember-view" href="http://google.com"></a>
     ```
-  
+
     One property can be mapped on to another by placing a ":" between
     the source property and the destination property:
-  
+
     ```app/components/my-anchor.js
     import Component from '@ember/component';
-  
+
     export default Component.extend({
       tagName: 'a',
       attributeBindings: ['url:href'],
-  
+
       url: 'http://google.com'
     });
     ```
-  
+
     Invoking this component will produce HTML that looks like:
-  
+
     ```html
     <a id="ember1" class="ember-view" href="http://google.com"></a>
     ```
-  
+
     HTML attributes passed with angle bracket invocations will take precedence
     over those specified in `attributeBindings`. Therefore, if this component was
     invoked like so:
-  
+
     ```handlebars
     <MyAnchor href="http://bing.com" @url="http://google.com" />
     ```
-  
+
     The resulting HTML will looks like this:
-  
+
     ```html
     <a id="ember1" class="ember-view" href="http://bing.com"></a>
     ```
-  
+
     Note that the `href` attribute is ultimately set to `http://bing.com`,
     despite it having attribute binidng to the `url` property, which was
     set to `http://google.com`.
-  
+
     Namespaced attributes (e.g. `xlink:href`) are supported, but have to be
     mapped, since `:` is not a valid character for properties in Javascript:
-  
+
     ```app/components/my-use.js
     import Component from '@ember/component';
-  
+
     export default Component.extend({
       tagName: 'use',
       attributeBindings: ['xlinkHref:xlink:href'],
-  
+
       xlinkHref: '#triangle'
     });
     ```
-  
+
     Invoking this component will produce HTML that looks like:
-  
+
     ```html
     <use xlink:href="#triangle"></use>
     ```
-  
+
     If the value of a property monitored by `attributeBindings` is a boolean, the
     attribute will be present or absent depending on the value:
-  
+
     ```app/components/my-text-input.js
     import Component from '@ember/component';
-  
+
     export default Component.extend({
       tagName: 'input',
       attributeBindings: ['disabled'],
-  
+
       disabled: false
     });
     ```
-  
+
     Invoking this component will produce HTML that looks like:
-  
+
     ```html
     <input id="ember1" class="ember-view" />
     ```
-  
+
     `attributeBindings` can refer to computed properties:
-  
+
     ```app/components/my-text-input.js
     import Component from '@ember/component';
     import { computed } from '@ember/object';
-  
+
     export default Component.extend({
       tagName: 'input',
       attributeBindings: ['disabled'],
-  
+
       disabled: computed(function() {
         if (someLogic) {
           return true;
@@ -3431,73 +3431,73 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
       })
     });
     ```
-  
+
     To prevent setting an attribute altogether, use `null` or `undefined` as the
     value of the property used in `attributeBindings`:
-  
+
     ```app/components/my-text-input.js
     import Component from '@ember/component';
-  
+
     export default Component.extend({
       tagName: 'form',
       attributeBindings: ['novalidate'],
       novalidate: null
     });
     ```
-  
+
     Updates to the property of an attribute binding will result in automatic
     update of the  HTML attribute in the component's HTML output.
-  
+
     `attributeBindings` is a concatenated property. See
     [EmberObject](/ember/release/classes/EmberObject) documentation for more
     information about concatenated properties.
-  
+
     ## Layouts
-  
+
     The `layout` property can be used to dynamically specify a template associated
     with a component class, instead of relying on Ember to link together a
     component class and a template based on file names.
-  
+
     In general, applications should not use this feature, but it's commonly used
     in addons for historical reasons.
-  
+
     The `layout` property should be set to the default export of a template
     module, which is the name of a template file without the `.hbs` extension.
-  
+
     ```app/templates/components/person-profile.hbs
     <h1>Person's Title</h1>
     <div class='details'>{{yield}}</div>
     ```
-  
+
     ```app/components/person-profile.js
       import Component from '@ember/component';
       import layout from '../templates/components/person-profile';
-  
+
       export default Component.extend({
         layout
       });
     ```
-  
+
     If you invoke the component:
-  
+
     ```handlebars
     <PersonProfile>
       <h2>Chief Basket Weaver</h2>
       <h3>Fisherman Industries</h3>
     </PersonProfile>
     ```
-  
+
     or
-  
+
     ```handlebars
     {{#person-profile}}
       <h2>Chief Basket Weaver</h2>
       <h3>Fisherman Industries</h3>
     {{/person-profile}}
     ```
-  
+
     It will result in the following HTML output:
-  
+
     ```html
     <h1>Person's Title</h1>
       <div class="details">
@@ -3505,42 +3505,42 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
       <h3>Fisherman Industries</h3>
     </div>
     ```
-  
+
     ## Handling Browser Events
-  
+
     Components can respond to user-initiated events in one of three ways: passing
     actions with angle bracket invocation, adding event handler methods to the
     component's class, or adding actions to the component's template.
-  
+
     ### Passing Actions With Angle Bracket Invocation
-  
+
     For one-off events specific to particular instance of a component, it is possible
     to pass actions to the component's element using angle bracket invocation syntax.
-  
+
     ```handlebars
     <MyWidget {{action 'firstWidgetClicked'}} />
-  
+
     <MyWidget {{action 'secondWidgetClicked'}} />
     ```
-  
+
     In this case, when the first component is clicked on, Ember will invoke the
     `firstWidgetClicked` action. When the second component is clicked on, Ember
     will invoke the `secondWidgetClicked` action instead.
-  
+
     Besides `{{action}}`, it is also possible to pass any arbitrary element modifiers
     using the angle bracket invocation syntax.
-  
+
     ### Event Handler Methods
-  
+
     Components can also respond to user-initiated events by implementing a method
     that matches the event name. This approach is appropriate when the same event
     should be handled by all instances of the same component.
-  
+
     An event object will be passed as the argument to the event handler method.
-  
+
     ```app/components/my-widget.js
     import Component from '@ember/component';
-  
+
     export default Component.extend({
       click(event) {
         // `event.target` is either the component's element or one of its children
@@ -3549,29 +3549,29 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
       }
     });
     ```
-  
+
     In this example, whenever the user clicked anywhere inside the component, it
     will log a message to the console.
-  
+
     It is possible to handle event types other than `click` by implementing the
     following event handler methods. In addition, custom events can be registered
     by using `Application.customEvents`.
-  
+
     Touch events:
-  
+
     * `touchStart`
     * `touchMove`
     * `touchEnd`
     * `touchCancel`
-  
+
     Keyboard events:
-  
+
     * `keyDown`
     * `keyUp`
     * `keyPress`
-  
+
     Mouse events:
-  
+
     * `mouseDown`
     * `mouseUp`
     * `contextMenu`
@@ -3579,17 +3579,17 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
     * `doubleClick`
     * `focusIn`
     * `focusOut`
-  
+
     Form events:
-  
+
     * `submit`
     * `change`
     * `focusIn`
     * `focusOut`
     * `input`
-  
+
     Drag and drop events:
-  
+
     * `dragStart`
     * `drag`
     * `dragEnter`
@@ -3597,20 +3597,20 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
     * `dragOver`
     * `dragEnd`
     * `drop`
-  
+
     ### `{{action}}` Helper
-  
+
     Instead of handling all events of a particular type anywhere inside the
     component's element, you may instead want to limit it to a particular
     element in the component's template. In this case, it would be more
     convenient to implement an action instead.
-  
+
     For example, you could implement the action `hello` for the `person-profile`
     component:
-  
+
     ```app/components/person-profile.js
     import Component from '@ember/component';
-  
+
     export default Component.extend({
       actions: {
         hello(name) {
@@ -3619,22 +3619,22 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
       }
     });
     ```
-  
+
     And then use it in the component's template:
-  
+
     ```app/templates/components/person-profile.hbs
     <h1>{{@person.name}}</h1>
-  
+
     <button {{action 'hello' @person.name}}>
       Say Hello to {{@person.name}}
     </button>
     ```
-  
+
     When the user clicks the button, Ember will invoke the `hello` action,
     passing in the current value of `@person.name` as an argument.
-  
+
     See [Ember.Templates.helpers.action](/ember/release/classes/Ember.Templates.helpers/methods/action?anchor=action).
-  
+
     @class Component
     @extends Ember.CoreView
     @uses Ember.TargetActionSupport
@@ -3943,22 +3943,22 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
   /**
     The internal class used to create text inputs when the `{{input}}`
     helper is used with `type` of `checkbox`.
-  
+
     See [Ember.Templates.helpers.input](/ember/release/classes/Ember.Templates.helpers/methods/input?anchor=input)  for usage details.
-  
+
     ## Direct manipulation of `checked`
-  
+
     The `checked` attribute of an `Checkbox` object should always be set
     through the Ember object or by interacting with its rendered element
     representation via the mouse, keyboard, or touch. Updating the value of the
     checkbox via jQuery will result in the checked value of the object and its
     element losing synchronization.
-  
+
     ## Layout and LayoutName properties
-  
+
     Because HTML `input` elements are self closing `layout` and `layoutName`
     properties will not be applied.
-  
+
     @class Checkbox
     @extends Component
     @public
@@ -4097,14 +4097,14 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
   }
   /**
     The internal class used to create text inputs when the `Input` component is used with `type` of `text`.
-  
+
     See [Ember.Templates.components.Input](/ember/release/classes/Ember.Templates.components/methods/Input?anchor=Input) for usage details.
-  
+
     ## Layout and LayoutName properties
-  
+
     Because HTML `input` elements are self closing `layout` and `layoutName`
     properties will not be applied.
-  
+
     @class TextField
     @extends Component
     @uses Ember.TextSupport
@@ -4241,96 +4241,96 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
 
   /**
     The `Textarea` component inserts a new instance of `<textarea>` tag into the template.
-  
+
     The `@value` argument provides the content of the `<textarea>`.
-  
+
     This template:
-  
+
     ```handlebars
     <Textarea @value="A bunch of text" />
     ```
-  
+
     Would result in the following HTML:
-  
+
     ```html
     <textarea class="ember-text-area">
       A bunch of text
     </textarea>
     ```
-  
+
     The `@value` argument is two-way bound. If the user types text into the textarea, the `@value`
     argument is updated. If the `@value` argument is updated, the text in the textarea is updated.
-  
+
     In the following example, the `writtenWords` property on the component will be updated as the user
     types 'Lots of text' into the text area of their browser's window.
-  
+
     ```app/components/word-editor.js
     import Component from '@glimmer/component';
     import { tracked } from '@glimmer/tracking';
-  
+
     export default class WordEditorComponent extends Component {
       @tracked writtenWords = "Lots of text that IS bound";
     }
     ```
-  
+
     ```handlebars
     <Textarea @value={{writtenWords}} />
     ```
-  
+
     Would result in the following HTML:
-  
+
     ```html
     <textarea class="ember-text-area">
       Lots of text that IS bound
     </textarea>
     ```
-  
+
     If you wanted a one way binding, you could use the `<textarea>` element directly, and use the
     `value` DOM property and the `input` event.
-  
+
     ### Actions
-  
+
     The `Textarea` component takes a number of arguments with callbacks that are invoked in
     response to user events.
-  
+
     * `enter`
     * `insert-newline`
     * `escape-press`
     * `focus-in`
     * `focus-out`
     * `key-press`
-  
+
     These callbacks are passed to `Textarea` like this:
-  
+
     ```handlebars
     <Textarea @value={{this.searchWord}} @enter={{this.query}} />
     ```
-  
+
     ## Classic Invocation Syntax
-  
+
     The `Textarea` component can also be invoked using curly braces, just like any other Ember
     component.
-  
+
     For example, this is an invocation using angle-bracket notation:
-  
+
     ```handlebars
     <Textarea @value={{this.searchWord}} @enter={{this.query}} />
     ```
-  
+
     You could accomplish the same thing using classic invocation:
-  
+
     ```handlebars
     {{textarea value=this.searchWord enter=this.query}}
     ```
-  
+
     The main difference is that angle-bracket invocation supports any HTML attribute using HTML
     attribute syntax, because attributes and arguments have different syntax when using angle-bracket
     invocation. Curly brace invocation, on the other hand, only has a single syntax for arguments,
     and components must manually map attributes onto component arguments.
-  
+
     When using classic invocation with `{{textarea}}`, only the following attributes are mapped onto
     arguments:
-  
+
     * rows
     * cols
     * name
@@ -4341,12 +4341,12 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
     * lang
     * dir
     * value
-  
+
     ## Classic `layout` and `layoutName` properties
-  
+
     Because HTML `textarea` elements do not contain inner HTML the `layout` and
     `layoutName` properties will not be applied.
-  
+
     @method Textarea
     @for Ember.Templates.components
     @see {TextArea}
@@ -4355,7 +4355,7 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
 
   /**
     See Ember.Templates.components.Textarea.
-  
+
     @method textarea
     @for Ember.Templates.helpers
     @see {Ember.Templates.components.textarea}
@@ -4364,7 +4364,7 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
 
   /**
     The internal representation used for `Textarea` invocations.
-  
+
     @class TextArea
     @extends Component
     @see {Ember.Templates.components.Textarea}
@@ -4400,136 +4400,136 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
     The `LinkTo` component renders a link to the supplied `routeName` passing an optionally
     supplied model to the route as its `model` context of the route. The block for `LinkTo`
     becomes the contents of the rendered element:
-  
+
     ```handlebars
     <LinkTo @route='photoGallery'>
       Great Hamster Photos
     </LinkTo>
     ```
-  
+
     This will result in:
-  
+
     ```html
     <a href="/hamster-photos">
       Great Hamster Photos
     </a>
     ```
-  
+
     ### Disabling the `LinkTo` component
-  
+
     The `LinkTo` component can be disabled by using the `disabled` argument. A disabled link
     doesn't result in a transition when activated, and adds the `disabled` class to the `<a>`
     element.
-  
+
     (The class name to apply to the element can be overridden by using the `disabledClass`
     argument)
-  
+
     ```handlebars
     <LinkTo @route='photoGallery' @disabled={{true}}>
       Great Hamster Photos
     </LinkTo>
     ```
-  
+
     ### Handling `href`
-  
+
     `<LinkTo>` will use your application's Router to fill the element's `href` property with a URL
     that matches the path to the supplied `routeName`.
-  
+
     ### Handling current route
-  
+
     The `LinkTo` component will apply a CSS class name of 'active' when the application's current
     route matches the supplied routeName. For example, if the application's current route is
     'photoGallery.recent', then the following invocation of `LinkTo`:
-  
+
     ```handlebars
     <LinkTo @route='photoGallery.recent'>
       Great Hamster Photos
     </LinkTo>
     ```
-  
+
     will result in
-  
+
     ```html
     <a href="/hamster-photos/this-week" class="active">
       Great Hamster Photos
     </a>
     ```
-  
+
     The CSS class used for active classes can be customized by passing an `activeClass` argument:
-  
+
     ```handlebars
     <LinkTo @route='photoGallery.recent' @activeClass="current-url">
       Great Hamster Photos
     </LinkTo>
     ```
-  
+
     ```html
     <a href="/hamster-photos/this-week" class="current-url">
       Great Hamster Photos
     </a>
     ```
-  
+
     ### Keeping a link active for other routes
-  
+
     If you need a link to be 'active' even when it doesn't match the current route, you can use the
     `current-when` argument.
-  
+
     ```handlebars
     <LinkTo @route='photoGallery' @current-when='photos'>
       Photo Gallery
     </LinkTo>
     ```
-  
+
     This may be helpful for keeping links active for:
-  
+
     * non-nested routes that are logically related
     * some secondary menu approaches
     * 'top navigation' with 'sub navigation' scenarios
-  
+
     A link will be active if `current-when` is `true` or the current
     route is the route this link would transition to.
-  
+
     To match multiple routes 'space-separate' the routes:
-  
+
     ```handlebars
     <LinkTo @route='gallery' @current-when='photos drawings paintings'>
       Art Gallery
     </LinkTo>
     ```
-  
+
     ### Supplying a model
-  
+
     An optional `model` argument can be used for routes whose
     paths contain dynamic segments. This argument will become
     the model context of the linked route:
-  
+
     ```javascript
     Router.map(function() {
       this.route("photoGallery", {path: "hamster-photos/:photo_id"});
     });
     ```
-  
+
     ```handlebars
     <LinkTo @route='photoGallery' @model={{this.aPhoto}}>
       {{aPhoto.title}}
     </LinkTo>
     ```
-  
+
     ```html
     <a href="/hamster-photos/42">
       Tomster
     </a>
     ```
-  
+
     ### Supplying multiple models
-  
+
     For deep-linking to route paths that contain multiple
     dynamic segments, the `models` argument can be used.
-  
+
     As the router transitions through the route path, each
     supplied model argument will become the context for the
     route with the dynamic segments:
-  
+
     ```javascript
     Router.map(function() {
       this.route("photoGallery", { path: "hamster-photos/:photo_id" }, function() {
@@ -4537,84 +4537,84 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
       });
     });
     ```
-  
+
     This argument will become the model context of the linked route:
-  
+
     ```handlebars
     <LinkTo @route='photoGallery.comment' @models={{array this.aPhoto this.comment}}>
       {{comment.body}}
     </LinkTo>
     ```
-  
+
     ```html
     <a href="/hamster-photos/42/comments/718">
       A+++ would snuggle again.
     </a>
     ```
-  
+
     ### Supplying an explicit dynamic segment value
-  
+
     If you don't have a model object available to pass to `LinkTo`,
     an optional string or integer argument can be passed for routes whose
     paths contain dynamic segments. This argument will become the value
     of the dynamic segment:
-  
+
     ```javascript
     Router.map(function() {
       this.route("photoGallery", { path: "hamster-photos/:photo_id" });
     });
     ```
-  
+
     ```handlebars
     <LinkTo @route='photoGallery' @model={{aPhotoId}}>
       {{this.aPhoto.title}}
     </LinkTo>
     ```
-  
+
     ```html
     <a href="/hamster-photos/42">
       Tomster
     </a>
     ```
-  
+
     When transitioning into the linked route, the `model` hook will
     be triggered with parameters including this passed identifier.
-  
+
     ### Allowing Default Action
-  
+
     By default the `<LinkTo>` component prevents the default browser action by calling
     `preventDefault()` to avoid reloading the browser page.
-  
+
     If you need to trigger a full browser reload pass `@preventDefault={{false}}`:
-  
+
     ```handlebars
     <LinkTo @route='photoGallery' @model={{this.aPhotoId}} @preventDefault={{false}}>
       {{this.aPhotoId.title}}
     </LinkTo>
     ```
-  
+
     ### Supplying a `tagName`
-  
+
     By default `<LinkTo>` renders an `<a>` element. This can be overridden for a single use of
     `<LinkTo>` by supplying a `tagName` argument:
-  
+
     ```handlebars
     <LinkTo @route='photoGallery' @tagName='li'>
       Great Hamster Photos
     </LinkTo>
     ```
-  
+
     This produces:
-  
+
     ```html
     <li>
       Great Hamster Photos
     </li>
     ```
-  
+
     In general, this is not recommended. Instead, you can use the `transition-to` helper together
     with a click event handler on the HTML tag of your choosing.
-  
+
     @for Ember.Templates.components
     @method LinkTo
     @see {LinkComponent}
@@ -4627,7 +4627,7 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
 
   /**
     See [Ember.Templates.components.LinkTo](/ember/release/classes/Ember.Templates.components/methods/input?anchor=LinkTo).
-  
+
     @for Ember.Templates.helpers
     @method link-to
     @see {Ember.Templates.components.LinkTo}
@@ -4636,7 +4636,7 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
 
   /**
     `LinkComponent` is the internal component invoked with `<LinkTo>` or `{{link-to}}`.
-  
+
     @class LinkComponent
     @extends Component
     @see {Ember.Templates.components.LinkTo}
@@ -5218,43 +5218,43 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
   /**
     Ember Helpers are functions that can compute values, and are used in templates.
     For example, this code calls a helper named `format-currency`:
-  
+
     ```app/templates/application.hbs
     <Cost @cents={{230}} />
     ```
-  
+
     ```app/components/cost.hbs
     <div>{{format-currency @cents currency="$"}}</div>
     ```
-  
+
     Additionally a helper can be called as a nested helper.
     In this example, we show the formatted currency value if the `showMoney`
     named argument is truthy.
-  
+
     ```handlebars
     {{if @showMoney (format-currency @cents currency="$")}}
     ```
-  
+
     Helpers defined using a class must provide a `compute` function. For example:
-  
+
     ```app/helpers/format-currency.js
     import Helper from '@ember/component/helper';
-  
+
     export default class extends Helper {
       compute([cents], { currency }) {
         return `${currency}${cents * 0.01}`;
       }
     }
     ```
-  
+
     Each time the input to a helper changes, the `compute` function will be
     called again.
-  
+
     As instances, these helpers also have access to the container and will accept
     injected dependencies.
-  
+
     Additionally, class helpers can call `recompute` to force a new computation.
-  
+
     @class Helper
     @public
     @since 1.13.0
@@ -5319,15 +5319,15 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
     In many cases it is not necessary to use the full `Helper` class.
     The `helper` method create pure-function helpers without instances.
     For example:
-  
+
     ```app/helpers/format-currency.js
     import { helper } from '@ember/component/helper';
-  
+
     export default helper(function([cents], {currency}) {
       return `${currency}${cents * 0.01}`;
     });
     ```
-  
+
     @static
     @param {Function} helper The helper function
     @method helper
@@ -5404,13 +5404,13 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
     Mark a string as safe for unescaped output with Ember templates. If you
     return HTML from a helper, use this function to
     ensure Ember's rendering layer does not escape the HTML.
-  
+
     ```javascript
     import { htmlSafe } from '@ember/template';
-  
+
     htmlSafe('<div>someString</div>')
     ```
-  
+
     @method htmlSafe
     @for @ember/template
     @static
@@ -5430,17 +5430,17 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
   }
   /**
     Detects if a string was decorated using `htmlSafe`.
-  
+
     ```javascript
     import { htmlSafe, isHTMLSafe } from '@ember/template';
-  
+
     var plainString = 'plain string',
         safeString = htmlSafe('<div>someValue</div>');
-  
+
     isHTMLSafe(plainString); // false
     isHTMLSafe(safeString);  // true
     ```
-  
+
     @method isHTMLSafe
     @for @ember/template
     @static
@@ -5754,7 +5754,7 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
 
   /**
     Represents the internal state of the component.
-  
+
     @class ComponentStateBucket
     @private
   */
@@ -6081,22 +6081,22 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
   /**
     The `mut` helper lets you __clearly specify__ that a child `Component` can update the
     (mutable) value passed to it, which will __change the value of the parent component__.
-  
+
     To specify that a parameter is mutable, when invoking the child `Component`:
-  
+
     ```handlebars
     <MyChild @childClickCount={{fn (mut totalClicks)}} />
     ```
-  
+
      or
-  
+
     ```handlebars
     {{my-child childClickCount=(mut totalClicks)}}
     ```
-  
+
     The child `Component` can then modify the parent's value just by modifying its own
     property:
-  
+
     ```javascript
     // my-child.js
     export default Component.extend({
@@ -6105,25 +6105,25 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
       }
     });
     ```
-  
+
     Note that for curly components (`{{my-component}}`) the bindings are already mutable,
     making the `mut` unnecessary.
-  
+
     Additionally, the `mut` helper can be combined with the `fn` helper to
     mutate a value. For example:
-  
+
     ```handlebars
     <MyChild @childClickCount={{this.totalClicks}} @click-count-change={{fn (mut totalClicks))}} />
     ```
-  
+
     or
-  
+
     ```handlebars
     {{my-child childClickCount=totalClicks click-count-change=(fn (mut totalClicks))}}
     ```
-  
+
     The child `Component` would invoke the function with the new click value:
-  
+
     ```javascript
     // my-child.js
     export default Component.extend({
@@ -6132,20 +6132,20 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
       }
     });
     ```
-  
+
     The `mut` helper changes the `totalClicks` value to what was provided as the `fn` argument.
-  
+
     The `mut` helper, when used with `fn`, will return a function that
     sets the value passed to `mut` to its first argument. As an example, we can create a
     button that increments a value passing the value directly to the `fn`:
-  
+
     ```handlebars
     {{! inc helper is not provided by Ember }}
     <button onclick={{fn (mut count) (inc count)}}>
       Increment count
     </button>
     ```
-  
+
     @method mut
     @param {Object} [attr] the "two-way" attribute that can be modified.
     @for Ember.Templates.helpers
@@ -6218,12 +6218,12 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
   /**
     The `{{action}}` helper provides a way to pass triggers for behavior (usually
     just a function) between components, and into components from controllers.
-  
+
     ### Passing functions with the action helper
-  
+
     There are three contexts an action helper can be used in. The first two
     contexts to discuss are attribute context, and Handlebars value context.
-  
+
     ```handlebars
     {{! An example of attribute context }}
     <div onclick={{action "save"}}></div>
@@ -6231,23 +6231,23 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
     {{input on-input=(action "save")}}
     {{yield (action "refreshData") andAnotherParam}}
     ```
-  
+
     In these contexts,
     the helper is called a "closure action" helper. Its behavior is simple:
     If passed a function name, read that function off the `actions` property
     of the current context. Once that function is read, or immediately if a function was
     passed, create a closure over that function and any arguments.
     The resulting value of an action helper used this way is simply a function.
-  
+
     For example, in the attribute context:
-  
+
     ```handlebars
     {{! An example of attribute context }}
     <div onclick={{action "save"}}></div>
     ```
-  
+
     The resulting template render logic would be:
-  
+
     ```js
     var div = document.createElement('div');
     var actionFunction = (function(context){
@@ -6257,17 +6257,17 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
     })(context);
     div.onclick = actionFunction;
     ```
-  
+
     Thus when the div is clicked, the action on that context is called.
     Because the `actionFunction` is just a function, closure actions can be
     passed between components and still execute in the correct context.
-  
+
     Here is an example action handler on a component:
-  
+
     ```app/components/my-component.js
     import Component from '@glimmer/component';
     import { action } from '@ember/object';
-  
+
     export default class extends Component {
       @action
       save() {
@@ -6275,31 +6275,31 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
       }
     }
     ```
-  
+
     Actions are always looked up on the `actions` property of the current context.
     This avoids collisions in the naming of common actions, such as `destroy`.
     Two options can be passed to the `action` helper when it is used in this way.
-  
+
     * `target=someProperty` will look to `someProperty` instead of the current
       context for the `actions` hash. This can be useful when targeting a
       service for actions.
     * `value="target.value"` will read the path `target.value` off the first
       argument to the action when it is called and rewrite the first argument
       to be that value. This is useful when attaching actions to event listeners.
-  
+
     ### Invoking an action
-  
+
     Closure actions curry both their scope and any arguments. When invoked, any
     additional arguments are added to the already curried list.
     Actions should be invoked using the [sendAction](/ember/release/classes/Component/methods/sendAction?anchor=sendAction)
     method. The first argument to `sendAction` is the action to be called, and
     additional arguments are passed to the action function. This has interesting
     properties combined with currying of arguments. For example:
-  
+
     ```app/components/update-name.js
     import Component from '@glimmer/component';
     import { action } from '@ember/object';
-  
+
     export default class extends Component {
       @action
       setName(model, name) {
@@ -6307,23 +6307,23 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
       }
     }
     ```
-  
+
     ```app/components/update-name.hbs
     {{input on-input=(action (action 'setName' @model) value="target.value")}}
     ```
-  
+
     The first argument (`@model`) was curried over, and the run-time argument (`event`)
     becomes a second argument. Action calls can be nested this way because each simply
     returns a function. Any function can be passed to the `{{action}}` helper, including
     other actions.
-  
+
     Actions invoked with `sendAction` have the same currying behavior as demonstrated
     with `on-input` above. For example:
-  
+
     ```app/components/my-input.js
     import Component from '@glimmer/component';
     import { action } from '@ember/object';
-  
+
     export default class extends Component {
       @action
       setName(model, name) {
@@ -6331,20 +6331,20 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
       }
     }
     ```
-  
+
     ```handlebars
     <MyInput @submit={{action 'setName' @model}} />
     ```
-  
+
     or
-  
+
     ```handlebars
     {{my-input submit=(action 'setName' @model)}}
     ```
-  
+
     ```app/components/my-component.js
     import Component from '@ember/component';
-  
+
     export default Component.extend({
       click() {
         // Note that model is not passed, it was curried in the template
@@ -6352,57 +6352,57 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
       }
     });
     ```
-  
+
     ### Attaching actions to DOM elements
-  
+
     The third context of the `{{action}}` helper can be called "element space".
     For example:
-  
+
     ```handlebars
     {{! An example of element space }}
     <div {{action "save"}}></div>
     ```
-  
+
     Used this way, the `{{action}}` helper provides a useful shortcut for
     registering an HTML element in a template for a single DOM event and
     forwarding that interaction to the template's context (controller or component).
     If the context of a template is a controller, actions used this way will
     bubble to routes when the controller does not implement the specified action.
     Once an action hits a route, it will bubble through the route hierarchy.
-  
+
     ### Event Propagation
-  
+
     `{{action}}` helpers called in element space can control event bubbling. Note
     that the closure style actions cannot.
-  
+
     Events triggered through the action helper will automatically have
     `.preventDefault()` called on them. You do not need to do so in your event
     handlers. If you need to allow event propagation (to handle file inputs for
     example) you can supply the `preventDefault=false` option to the `{{action}}` helper:
-  
+
     ```handlebars
     <div {{action "sayHello" preventDefault=false}}>
       <input type="file" />
       <input type="checkbox" />
     </div>
     ```
-  
+
     To disable bubbling, pass `bubbles=false` to the helper:
-  
+
     ```handlebars
     <button {{action 'edit' post bubbles=false}}>Edit</button>
     ```
-  
+
     To disable bubbling with closure style actions you must create your own
     wrapper helper that makes use of `event.stopPropagation()`:
-  
+
     ```handlebars
     <div onclick={{disable-bubbling (action "sayHello")}}>Hello</div>
     ```
-  
+
     ```app/helpers/disable-bubbling.js
     import { helper } from '@ember/component/helper';
-  
+
     export function disableBubbling([action]) {
       return function(event) {
         event.stopPropagation();
@@ -6411,69 +6411,69 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
     }
     export default helper(disableBubbling);
     ```
-  
+
     If you need the default handler to trigger you should either register your
     own event handler, or use event methods on your view class. See
     ["Responding to Browser Events"](/ember/release/classes/Component)
     in the documentation for `Component` for more information.
-  
+
     ### Specifying DOM event type
-  
+
     `{{action}}` helpers called in element space can specify an event type.
     By default the `{{action}}` helper registers for DOM `click` events. You can
     supply an `on` option to the helper to specify a different DOM event name:
-  
+
     ```handlebars
     <div {{action "anActionName" on="doubleClick"}}>
       click me
     </div>
     ```
-  
+
     See ["Event Names"](/ember/release/classes/Component) for a list of
     acceptable DOM event names.
-  
+
     ### Specifying whitelisted modifier keys
-  
+
     `{{action}}` helpers called in element space can specify modifier keys.
     By default the `{{action}}` helper will ignore click events with pressed modifier
     keys. You can supply an `allowedKeys` option to specify which keys should not be ignored.
-  
+
     ```handlebars
     <div {{action "anActionName" allowedKeys="alt"}}>
       click me
     </div>
     ```
-  
+
     This way the action will fire when clicking with the alt key pressed down.
     Alternatively, supply "any" to the `allowedKeys` option to accept any combination of modifier keys.
-  
+
     ```handlebars
     <div {{action "anActionName" allowedKeys="any"}}>
       click me with any key pressed
     </div>
     ```
-  
+
     ### Specifying a Target
-  
+
     A `target` option can be provided to the helper to change
     which object will receive the method call. This option must be a path
     to an object, accessible in the current context:
-  
+
     ```app/templates/application.hbs
     <div {{action "anActionName" target=someService}}>
       click me
     </div>
     ```
-  
+
     ```app/controllers/application.js
     import Controller from '@ember/controller';
     import { inject as service } from '@ember/service';
-  
+
     export default class extends Controller {
       @service someService;
     }
     ```
-  
+
     @method action
     @for Ember.Templates.helpers
     @public
@@ -7597,16 +7597,16 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
   /**
     The `{{#each}}` helper loops over elements in a collection. It is an extension
     of the base Handlebars `{{#each}}` helper.
-  
+
     The default behavior of `{{#each}}` is to yield its inner block once for every
     item in an array passing the item as the first block parameter.
-  
+
     Assuming the `@developers` argument contains this array:
-  
+
     ```javascript
     [{ name: 'Yehuda' },{ name: 'Tom' }, { name: 'Paul' }];
     ```
-  
+
     ```handlebars
     <ul>
       {{#each @developers as |person|}}
@@ -7614,13 +7614,13 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
       {{/each}}
     </ul>
     ```
-  
+
     The same rules apply to arrays of primitives.
-  
+
     ```javascript
     ['Yehuda', 'Tom', 'Paul']
     ```
-  
+
     ```handlebars
     <ul>
       {{#each @developerNames as |name|}}
@@ -7628,10 +7628,10 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
       {{/each}}
     </ul>
     ```
-  
+
     During iteration, the index of each item in the array is provided as a second block
     parameter.
-  
+
     ```handlebars
     <ul>
       {{#each @developers as |person index|}}
@@ -7639,34 +7639,34 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
       {{/each}}
     </ul>
     ```
-  
+
     ### Specifying Keys
-  
+
     In order to improve rendering speed, Ember will try to reuse the DOM elements
     where possible. Specifically, if the same item is present in the array both
     before and after the change, its DOM output will be reused.
-  
+
     The `key` option is used to tell Ember how to determine if the items in the
     array being iterated over with `{{#each}}` has changed between renders. By
     default the item's object identity is used.
-  
+
     This is usually sufficient, so in most cases, the `key` option is simply not
     needed. However, in some rare cases, the objects' identities may change even
     though they represent the same underlying data.
-  
+
     For example:
-  
+
     ```javascript
     people.map(person => {
       return { ...person, type: 'developer' };
     });
     ```
-  
+
     In this case, each time the `people` array is `map`-ed over, it will produce
     an new array with completely different objects between renders. In these cases,
     you can help Ember determine how these objects related to each other with the
     `key` option:
-  
+
     ```handlebars
     <ul>
       {{#each @developers key="name" as |person|}}
@@ -7674,17 +7674,17 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
       {{/each}}
     </ul>
     ```
-  
+
     By doing so, Ember will use the value of the property specified (`person.name`
     in the example) to find a "match" from the previous render. That is, if Ember
     has previously seen an object from the `@developers` array with a matching
     name, its DOM elements will be re-used.
-  
+
     ### {{else}} condition
-  
+
     `{{#each}}` can have a matching `{{else}}`. The contents of this block will render
     if the collection is empty.
-  
+
     ```handlebars
     <ul>
       {{#each @developers as |person|}}
@@ -7694,7 +7694,7 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
       {{/each}}
     </ul>
     ```
-  
+
     @method each
     @for Ember.Templates.helpers
     @public
@@ -7702,13 +7702,13 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
 
   /**
     The `{{each-in}}` helper loops over properties on an object.
-  
+
     For example, given this component definition:
-  
+
     ```app/components/developer-details.js
     import Component from '@glimmer/component';
     import { tracked } from '@glimmer/tracking';
-  
+
     export default class extends Component {
       @tracked developer = {
         "name": "Shelly Sails",
@@ -7716,10 +7716,10 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
       };
     }
     ```
-  
+
     This template would display all properties on the `developer`
     object in a list:
-  
+
     ```app/components/developer-details.hbs
     <ul>
       {{#each-in this.developer as |key value|}}
@@ -7727,9 +7727,9 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
       {{/each-in}}
     </ul>
     ```
-  
+
     Outputting their name and age.
-  
+
     @method each-in
     @for Ember.Templates.helpers
     @public
@@ -8225,22 +8225,22 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
     implementations that integrate seamlessly into Ember. This is accomplished
     through a delegate, registered with the custom component manager, which
     implements a set of hooks that determine component behavior.
-  
+
     To create a custom component manager, instantiate a new CustomComponentManager
     class and pass the delegate as the first argument:
-  
+
     ```js
     let manager = new CustomComponentManager({
       // ...delegate implementation...
     });
     ```
-  
+
     ## Delegate Hooks
-  
+
     Throughout the lifecycle of a component, the component manager will invoke
     delegate hooks that are responsible for surfacing those lifecycle changes to
     the end developer.
-  
+
     * `create()` - invoked when a new instance of a component should be created
     * `update()` - invoked when the arguments passed to a component change
     * `getContext()` - returns the object that should be
@@ -8746,7 +8746,7 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
   /**
      Use the `{{array}}` helper to create an array to pass as an option to your
      components.
-  
+
      ```handlebars
      <MyComponent @people={{array
        'Tom Dade'
@@ -8762,15 +8762,15 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
        this.myOtherPerson)
      }}
      ```
-  
+
      Would result in an object such as:
-  
+
      ```js
      ['Tom Date', 'Yehuda Katz', this.get('myOtherPerson')]
      ```
-  
+
      Where the 3rd item in the array is bound to updates of the `myOtherPerson` property.
-  
+
      @method array
      @for Ember.Templates.helpers
      @param {Array} options
@@ -8801,21 +8801,21 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
 
   /**
     Concatenates the given arguments into a string.
-  
+
     Example:
-  
+
     ```handlebars
     {{some-component name=(concat firstName " " lastName)}}
-  
+
     {{! would pass name="<first name value> <last name value>" to the component}}
     ```
-  
+
     or for angle bracket invocation, you actually don't need concat at all.
-  
+
     ```handlebars
     <SomeComponent @name="{{firstName}} {{lastName}}" />
     ```
-  
+
     @public
     @method concat
     @for Ember.Templates.helpers
@@ -8873,22 +8873,22 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
     The `fn` helper allows you to ensure a function that you are passing off
     to another component, helper, or modifier has access to arguments that are
     available in the template.
-  
+
     For example, if you have an `each` helper looping over a number of items, you
     may need to pass a function that expects to receive the item as an argument
     to a component invoked within the loop. Here's how you could use the `fn`
     helper to pass both the function and its arguments together:
-  
+
       ```app/templates/components/items-listing.hbs
     {{#each @items as |item|}}
       <DisplayItem @item=item @select={{fn this.handleSelected item}} />
     {{/each}}
     ```
-  
+
     ```app/components/items-list.js
     import Component from '@glimmer/component';
     import { action } from '@ember/object';
-  
+
     export default class ItemsList extends Component {
       @action
       handleSelected(item) {
@@ -8896,41 +8896,41 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
       }
     }
     ```
-  
+
     In this case the `display-item` component will receive a normal function
     that it can invoke. When it invokes the function, the `handleSelected`
     function will receive the `item` and any arguments passed, thanks to the
     `fn` helper.
-  
+
     Let's take look at what that means in a couple circumstances:
-  
+
     - When invoked as `this.args.select()` the `handleSelected` function will
       receive the `item` from the loop as its first and only argument.
     - When invoked as `this.args.select('foo')` the `handleSelected` function
       will receive the `item` from the loop as its first argument and the
       string `'foo'` as its second argument.
-  
+
     In the example above, we used `@action` to ensure that `handleSelected` is
     properly bound to the `items-list`, but let's explore what happens if we
     left out `@action`:
-  
+
     ```app/components/items-list.js
     import Component from '@glimmer/component';
-  
+
     export default class ItemsList extends Component {
       handleSelected(item) {
         // ...snip...
       }
     }
     ```
-  
+
     In this example, when `handleSelected` is invoked inside the `display-item`
     component, it will **not** have access to the component instance. In other
     words, it will have no `this` context, so please make sure your functions
     are bound (via `@action` or other means) before passing into `fn`!
-  
+
     See also [partial application](https://en.wikipedia.org/wiki/Partial_application).
-  
+
     @method fn
     @for Ember.Templates.helpers
     @public
@@ -8972,13 +8972,13 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
   /**
     Dynamically look up a property on an object. The second argument to `{{get}}`
     should have a string value, although it can be bound.
-  
+
     For example, these two usages are equivalent:
-  
+
     ```app/components/developer-detail.js
     import Component from '@glimmer/component';
     import { tracked } from '@glimmer/tracking';
-  
+
     export default class extends Component {
       @tracked developer = {
         name: "Sandi Metz",
@@ -8986,64 +8986,64 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
       }
     }
     ```
-  
+
     ```handlebars
     {{this.developer.name}}
     {{get this.developer "name"}}
     ```
-  
+
     If there were several facts about a person, the `{{get}}` helper can dynamically
     pick one:
-  
+
     ```app/templates/application.hbs
     <DeveloperDetail @factName="language" />
     ```
-  
+
     ```handlebars
     {{get this.developer @factName}}
     ```
-  
+
     For a more complex example, this template would allow the user to switch
     between showing the user's height and weight with a click:
-  
+
     ```app/components/developer-detail.js
     import Component from '@glimmer/component';
     import { tracked } from '@glimmer/tracking';
-  
+
     export default class extends Component {
       @tracked developer = {
         name: "Sandi Metz",
         language: "Ruby"
       }
-  
+
       @tracked currentFact = 'name'
-  
+
       @action
       showFact(fact) {
         this.currentFact = fact;
       }
     }
     ```
-  
+
     ```app/components/developer-detail.js
     {{get this.developer this.currentFact}}
-  
+
     <button {{on 'click' (fn this.showFact "name")}}>Show name</button>
     <button {{on 'click' (fn this.showFact "language")}}>Show language</button>
     ```
-  
+
     The `{{get}}` helper can also respect mutable values itself. For example:
-  
+
     ```app/components/developer-detail.js
     <Input @value={{mut (get this.person this.currentFact)}} />
-  
+
     <button {{on 'click' (fn this.showFact "name")}}>Show name</button>
     <button {{on 'click' (fn this.showFact "language")}}>Show language</button>
     ```
-  
+
     Would allow the user to swap what fact is being displayed, and also edit
     that fact via a two-way mutable binding.
-  
+
     @public
     @method get
     @for Ember.Templates.helpers
@@ -9109,33 +9109,33 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
      Use the `{{hash}}` helper to create a hash to pass as an option to your
      components. This is specially useful for contextual components where you can
      just yield a hash:
-  
+
      ```handlebars
      {{yield (hash
         name='Sarah'
         title=office
      )}}
      ```
-  
+
      Would result in an object such as:
-  
+
      ```js
      { name: 'Sarah', title: this.get('office') }
      ```
-  
+
      Where the `title` is bound to updates of the `office` property.
-  
+
      Note that the hash is an empty object with no prototype chain, therefore
      common methods like `toString` are not available in the resulting hash.
      If you need to use such a method, you can use the `call` or `apply`
      approach:
-  
+
      ```js
      function toString(obj) {
        return Object.prototype.toString.apply(obj);
      }
      ```
-  
+
      @method hash
      @for Ember.Templates.helpers
      @param {Object} options
@@ -9186,31 +9186,31 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
     The `if` helper allows you to conditionally render one of two branches,
     depending on the "truthiness" of a property.
     For example the following values are all falsey: `false`, `undefined`, `null`, `""`, `0`, `NaN` or an empty array.
-  
+
     This helper has two forms, block and inline.
-  
+
     ## Block form
-  
+
     You can use the block form of `if` to conditionally render a section of the template.
-  
+
     To use it, pass the conditional value to the `if` helper,
     using the block form to wrap the section of template you want to conditionally render.
     Like so:
-  
+
     ```app/templates/application.hbs
     <Weather />
     ```
-  
+
     ```app/components/weather.hbs
     {{! will not render because greeting is undefined}}
     {{#if @isRaining}}
       Yes, grab an umbrella!
     {{/if}}
     ```
-  
+
     You can also define what to show if the property is falsey by using
     the `else` helper.
-  
+
     ```app/components/weather.hbs
     {{#if @isRaining}}
       Yes, grab an umbrella!
@@ -9218,12 +9218,12 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
       No, it's lovely outside!
     {{/if}}
     ```
-  
+
     You are also able to combine `else` and `if` helpers to create more complex
     conditional logic.
-  
+
     For the following template:
-  
+
      ```app/components/weather.hbs
     {{#if @isRaining}}
       Yes, grab an umbrella!
@@ -9233,42 +9233,42 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
       No, it's lovely outside!
     {{/if}}
     ```
-  
+
     If you call it by saying `isCold` is true:
-  
+
     ```app/templates/application.hbs
     <Weather @isCold={{true}} />
     ```
-  
+
     Then `Grab a coat, it's chilly!` will be rendered.
-  
+
     ## Inline form
-  
+
     The inline `if` helper conditionally renders a single property or string.
-  
+
     In this form, the `if` helper receives three arguments, the conditional value,
     the value to render when truthy, and the value to render when falsey.
-  
+
     For example, if `useLongGreeting` is truthy, the following:
-  
+
     ```app/templates/application.hbs
     <Greeting @useLongGreeting={{true}} />
     ```
-  
+
     ```app/components/greeting.hbs
     {{if @useLongGreeting "Hello" "Hi"}} Alex
     ```
-  
+
     Will render:
-  
+
     ```html
     Hello Alex
     ```
-  
+
     One detail to keep in mind is that both branches of the `if` helper will be evaluated,
     so if you have `{{if condition "foo" (expensive-operation "bar")`,
     `expensive-operation` will always calculate.
-  
+
     @method if
     @for Ember.Templates.helpers
     @public
@@ -9282,51 +9282,51 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
     The `unless` helper is the inverse of the `if` helper. It displays if a value
     is falsey ("not true" or "is false"). Example values that will display with
     `unless`: `false`, `undefined`, `null`, `""`, `0`, `NaN` or an empty array.
-  
+
     ## Inline form
-  
+
     The inline `unless` helper conditionally renders a single property or string.
     This helper acts like a ternary operator. If the first property is falsy,
     the second argument will be displayed, otherwise, the third argument will be
     displayed
-  
+
     For example, if you pass a falsey `useLongGreeting` to the `Greeting` component:
-  
+
     ```app/templates/application.hbs
     <Greeting @useLongGreeting={{false}} />
     ```
-  
+
     ```app/components/greeting.hbs
     {{unless @useLongGreeting "Hi" "Hello"}} Ben
     ```
-  
+
     Then it will display:
-  
+
     ```html
     Hi Ben
     ```
-  
+
     ## Block form
-  
+
     Like the `if` helper, the `unless` helper also has a block form.
-  
+
     The following will not render anything:
-  
+
     ```app/templates/application.hbs
     <Greeting />
     ```
-  
+
     ```app/components/greeting.hbs
     {{#unless @greeting}}
       No greeting was found. Why not set one?
     {{/unless}}
     ```
-  
+
     You can also use an `else` helper with the `unless` block. The
     `else` will display if the value is truthy.
-  
+
     If you have the following component:
-  
+
     ```app/components/logged-in.hbs
     {{#unless @userData}}
       Please login.
@@ -9334,31 +9334,31 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
       Welcome back!
     {{/unless}}
     ```
-  
+
     Calling it with a truthy `userData`:
-  
+
     ```app/templates/application.hbs
     <LoggedIn @userData={{hash username="Zoey"}} />
     ```
-  
+
     Will render:
-  
+
     ```html
     Welcome back!
     ```
-  
+
     and calling it with a falsey `userData`:
-  
+
     ```app/templates/application.hbs
     <LoggedIn @userData={{false}} />
     ```
-  
+
     Will render:
-  
+
     ```html
     Please login.
     ```
-  
+
     @method unless
     @for Ember.Templates.helpers
     @public
@@ -9375,11 +9375,11 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
   /**
     `log` allows you to output the value of variables in the current rendering
     context. `log` also accepts primitive types such as strings or numbers.
-  
+
     ```handlebars
     {{log "myVariable:" myVariable }}
     ```
-  
+
     @method log
     @for Ember.Templates.helpers
     @param {Array} params
@@ -9405,9 +9405,9 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
   /**
     This is a helper to be used in conjunction with the link-to helper.
     It will supply url query parameters to the target route.
-  
+
     @example In this example we are setting the `direction` query param to the value `"asc"`
-  
+
     ```app/templates/application.hbs
     <LinkTo
       @route="posts"
@@ -9416,7 +9416,7 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
       Sort
     </LinkTo>
     ```
-  
+
     @method query-params
     @for Ember.Templates.helpers
     @param {Object} hash takes a hash of query parameters
@@ -9443,15 +9443,15 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
     When you pass a `readonly` binding from an outer context (e.g. parent component),
     to to an inner context (e.g. child component), you are saying that changing that
     property in the inner context does not change the value in the outer context.
-  
+
     To specify that a binding is read-only, when invoking the child `Component`:
-  
+
     ```app/components/my-parent.js
     export default Component.extend({
       totalClicks: 3
     });
     ```
-  
+
     ```app/templates/components/my-parent.hbs
     {{log totalClicks}} // -> 3
     <MyChild @childClickCount={{readonly totalClicks}} />
@@ -9459,9 +9459,9 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
     ```
     {{my-child childClickCount=(readonly totalClicks)}}
     ```
-  
+
     Now, when you update `childClickCount`:
-  
+
     ```app/components/my-child.js
     export default Component.extend({
       click() {
@@ -9469,13 +9469,13 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
       }
     });
     ```
-  
+
     The value updates in the child component, but not the parent component:
-  
+
     ```app/templates/components/my-child.hbs
     {{log childClickCount}} //-> 4
     ```
-  
+
     ```app/templates/components/my-parent.hbs
     {{log totalClicks}} //-> 3
     <MyChild @childClickCount={{readonly totalClicks}} />
@@ -9485,31 +9485,31 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
     {{log totalClicks}} //-> 3
     {{my-child childClickCount=(readonly totalClicks)}}
     ```
-  
+
     ### Objects and Arrays
-  
+
     When passing a property that is a complex object (e.g. object, array) instead of a primitive object (e.g. number, string),
     only the reference to the object is protected using the readonly helper.
     This means that you can change properties of the object both on the parent component, as well as the child component.
     The `readonly` binding behaves similar to the `const` keyword in JavaScript.
-  
+
     Let's look at an example:
-  
+
     First let's set up the parent component:
-  
+
     ```app/components/my-parent.js
     import Component from '@ember/component';
-  
+
     export default Component.extend({
       clicks: null,
-  
+
       init() {
         this._super(...arguments);
         this.set('clicks', { total: 3 });
       }
     });
     ```
-  
+
     ```app/templates/components/my-parent.hbs
     {{log clicks.total}} //-> 3
     <MyChild @childClicks={{readonly clicks}} />
@@ -9518,21 +9518,21 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
     {{log clicks.total}} //-> 3
     {{my-child childClicks=(readonly clicks)}}
     ```
-  
+
     Now, if you update the `total` property of `childClicks`:
-  
+
     ```app/components/my-child.js
     import Component from '@ember/component';
-  
+
     export default Component.extend({
       click() {
         this.get('clicks').incrementProperty('total');
       }
     });
     ```
-  
+
     You will see the following happen:
-  
+
     ```app/templates/components/my-parent.hbs
     {{log clicks.total}} //-> 4
     <MyChild @childClicks={{readonly clicks}} />
@@ -9542,11 +9542,11 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
     {{log clicks.total}} //-> 4
     {{my-child childClicks=(readonly clicks)}}
     ```
-  
+
     ```app/templates/components/my-child.hbs
     {{log childClicks.total}} //-> 4
     ```
-  
+
     @method readonly
     @param {Object} [attr] the read-only attribute.
     @for Ember.Templates.helpers
@@ -9588,24 +9588,24 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
     essentially freezing its value at the moment of rendering. For example,
     in this example the display of the variable `name` will not change even
     if it is set with a new value:
-  
+
     ```handlebars
     {{unbound this.name}}
     ```
-  
+
     Like any helper, the `unbound` helper can accept a nested helper expression.
     This allows for custom helpers to be rendered unbound:
-  
+
     ```handlebars
     {{unbound (some-custom-helper)}}
     {{unbound (capitalize this.name)}}
     {{! You can use any helper, including unbound, in a nested expression }}
     {{capitalize (unbound this.name)}}
     ```
-  
+
     The `unbound` helper only accepts a single argument, and it return an
     unbound value.
-  
+
     @method unbound
     @for Ember.Templates.helpers
     @public
@@ -9919,15 +9919,15 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
     implements a set of hooks that determine modifier behavior.
     To create a custom modifier manager, instantiate a new CustomModifierManager
     class and pass the delegate as the first argument:
-  
+
     ```js
     let manager = new CustomModifierManager({
       // ...delegate implementation...
     });
     ```
-  
+
     ## Delegate Hooks
-  
+
     Throughout the lifecycle of a modifier, the modifier manager will invoke
     delegate hooks that are responsible for surfacing those lifecycle changes to
     the end developer.
@@ -10044,11 +10044,11 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
     Internet Explorer 11 does not support `once` and also does not support
     passing `eventOptions`. In some situations it then throws a weird script
     error, like:
-  
+
     ```
     Could not complete the operation due to error 80020101
     ```
-  
+
     This flag determines, whether `{ once: true }` and thus also event options in
     general are supported.
   */
@@ -10239,18 +10239,18 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
     The `{{on}}` modifier lets you easily add event listeners (it uses
     [EventTarget.addEventListener](https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/addEventListener)
     internally).
-  
+
     For example, if you'd like to run a function on your component when a `<button>`
     in the components template is clicked you might do something like:
-  
+
     ```app/components/like-post.hbs
     <button {{on 'click' this.saveLike}}>Like this post!</button>
     ```
-  
+
     ```app/components/like-post.js
     import Component from '@glimmer/component';
     import { action } from '@ember/object';
-  
+
     export default class LikePostComponent extends Component {
       @action
       saveLike() {
@@ -10259,18 +10259,18 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
       }
     }
     ```
-  
+
     ### Arguments
-  
+
     `{{on}}` accepts two positional arguments, and a few named arguments.
-  
+
     The positional arguments are:
-  
+
     - `event` -- the name to use when calling `addEventListener`
     - `callback` -- the function to be passed to `addEventListener`
-  
+
     The named arguments are:
-  
+
     - capture -- a `true` value indicates that events of this type will be dispatched
       to the registered listener before being dispatched to any EventTarget beneath it
       in the DOM tree.
@@ -10281,44 +10281,44 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
       agent will do nothing other than generate a console warning. See
       [Improving scrolling performance with passive listeners](https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/addEventListener#Improving_scrolling_performance_with_passive_listeners)
       to learn more.
-  
+
     The callback function passed to `{{on}}` will receive any arguments that are passed
     to the event handler. Most commonly this would be the `event` itself.
-  
+
     If you would like to pass additional arguments to the function you should use
     the `{{fn}}` helper.
-  
+
     For example, in our example case above if you'd like to pass in the post that
     was being liked when the button is clicked you could do something like:
-  
+
     ```app/components/like-post.hbs
     <button {{on 'click' (fn this.saveLike @post)}}>Like this post!</button>
     ```
-  
+
     In this case, the `saveLike` function will receive two arguments: the click event
     and the value of `@post`.
-  
+
     ### Function Context
-  
+
     In the example above, we used `@action` to ensure that `likePost` is
     properly bound to the `items-list`, but let's explore what happens if we
     left out `@action`:
-  
+
     ```app/components/like-post.js
     import Component from '@glimmer/component';
-  
+
     export default class LikePostComponent extends Component {
       saveLike() {
         // ...snip...
       }
     }
     ```
-  
+
     In this example, when the button is clicked `saveLike` will be invoked,
     it will **not** have access to the component instance. In other
     words, it will have no `this` context, so please make sure your functions
     are bound (via `@action` or other means) before passing into `on`!
-  
+
     @method on
     @for Ember.Templates.helpers
     @public
@@ -10646,25 +10646,25 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
     The `{{mount}}` helper lets you embed a routeless engine in a template.
     Mounting an engine will cause an instance to be booted and its `application`
     template to be rendered.
-  
+
     For example, the following template mounts the `ember-chat` engine:
-  
+
     ```handlebars
     {{! application.hbs }}
     {{mount "ember-chat"}}
     ```
-  
+
     Additionally, you can also pass in a `model` argument that will be
     set as the engines model. This can be an existing object:
-  
+
     ```
     <div>
       {{mount 'admin' model=userSettings}}
     </div>
     ```
-  
+
     Or an inline `hash`, and you can even pass components:
-  
+
     ```
     <div>
       <h1>Application template!</h1>
@@ -10674,7 +10674,7 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
       )}}
     </div>
     ```
-  
+
     @method mount
     @param {String} name Name of the engine to mount.
     @param {Object} [model] Object that will be set as
@@ -10804,44 +10804,44 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
     The `{{outlet}}` helper lets you specify where a child route will render in
     your template. An important use of the `{{outlet}}` helper is in your
     application's `application.hbs` file:
-  
+
     ```app/templates/application.hbs
     <MyHeader />
-  
+
     <div class="my-dynamic-content">
       <!-- this content will change based on the current route, which depends on the current URL -->
       {{outlet}}
     </div>
-  
+
     <MyFooter />
     ```
-  
+
     You may also specify a name for the `{{outlet}}`, which is useful when using more than one
     `{{outlet}}` in a template:
-  
+
     ```app/templates/application.hbs
     {{outlet "menu"}}
     {{outlet "sidebar"}}
     {{outlet "main"}}
     ```
-  
+
     Your routes can then render into a specific one of these `outlet`s by specifying the `outlet`
     attribute in your `renderTemplate` function:
-  
+
     ```app/routes/menu.js
     import Route from '@ember/routing/route';
-  
+
     export default class MenuRoute extends Route {
       renderTemplate() {
         this.render({ outlet: 'menu' });
       }
     }
     ```
-  
+
     See the [routing guide](https://guides.emberjs.com/release/routing/rendering-a-template/) for more
     information on how your `route` interacts with the `{{outlet}}` helper.
     Note: Your content __will not render__ if there isn't an `{{outlet}}` for it.
-  
+
     @method outlet
     @param {String} [name]
     @for Ember.Templates.helpers
@@ -11703,7 +11703,7 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
     this context is defined as when all of the tags in use are "current" (e.g.
     `renderers.every(r => r._isValid())`). When this is checked at the _end_ of
     the run loop, this essentially guarantees that all rendering is completed.
-  
+
     @method renderSettled
     @returns {Promise<void>} a promise which fulfills when rendering has settled
   */
@@ -12197,7 +12197,7 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
 
   /**
     See [Ember.Templates.components.Input](/ember/release/classes/Ember.Templates.components/methods/Input?anchor=Input).
-  
+
     @method input
     @for Ember.Templates.helpers
     @param {Hash} options
@@ -12206,31 +12206,31 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
 
   /**
     The `Input` component lets you create an HTML `<input>` element.
-  
+
     ```handlebars
     <Input @value="987" />
     ```
-  
+
     creates an `<input>` element with `type="text"` and value set to 987.
-  
+
     ### Text field
-  
+
     If no `type` argument is specified, a default of type 'text' is used.
-  
+
     ```handlebars
     Search:
     <Input @value={{this.searchWord}} />
     ```
-  
+
     In this example, the initial value in the `<input>` will be set to the value of
     `this.searchWord`. If the user changes the text, the value of `this.searchWord` will also be
     updated.
-  
+
     ### Actions
-  
+
     The `Input` component takes a number of arguments with callbacks that are invoked in response to
     user events.
-  
+
     * `enter`
     * `insert-newline`
     * `escape-press`
@@ -12239,61 +12239,61 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
     * `key-down`
     * `key-press`
     * `key-up`
-  
+
     These callbacks are passed to `Input` like this:
-  
+
     ```handlebars
     <Input @value={{this.searchWord}} @enter={{this.query}} />
     ```
-  
+
     ### `<input>` HTML Attributes to Avoid
-  
+
     In most cases, if you want to pass an attribute to the underlying HTML `<input>` element, you
     can pass the attribute directly, just like any other Ember component.
-  
+
     ```handlebars
     <Input @type="text" size="10" />
     ```
-  
+
     In this example, the `size` attribute will be applied to the underlying `<input>` element in the
     outputted HTML.
-  
+
     However, there are a few attributes where you **must** use the `@` version.
-  
+
     * `@type`: This argument is used to control which Ember component is used under the hood
     * `@value`: The `@value` argument installs a two-way binding onto the element. If you wanted a
       one-way binding, use `<input>` with the `value` property and the `input` event instead.
     * `@checked` (for checkboxes): like `@value`, the `@checked` argument installs a two-way binding
       onto the element. If you wanted a one-way binding, use `<input type="checkbox">` with
       `checked` and the `input` event instead.
-  
+
     ### Extending `TextField`
-  
+
     Internally, `<Input @type="text" />` creates an instance of `TextField`, passing arguments from
     the helper to `TextField`'s `create` method. Subclassing `TextField` is supported but not
     recommended.
-  
+
     See [TextField](/ember/release/classes/TextField)
-  
+
     ### Checkbox
-  
+
     To create an `<input type="checkbox">`:
-  
+
     ```handlebars
     Emberize Everything:
     <Input @type="checkbox" @checked={{this.isEmberized}} name="isEmberized" />
     ```
-  
+
     This will bind the checked state of this checkbox to the value of `isEmberized` -- if either one
     changes, it will be reflected in the other.
-  
+
     ### Extending `Checkbox`
-  
+
     Internally, `<Input @type="checkbox" />` creates an instance of `Checkbox`. Subclassing
     `TextField` is supported but not recommended.
-  
+
     See [Checkbox](/ember/release/classes/Checkbox)
-  
+
     @method Input
     @for Ember.Templates.components
     @see {TextField}
@@ -12324,28 +12324,28 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
     Calls [String.loc](/ember/release/classes/String/methods/loc?anchor=loc) with the
     provided string. This is a convenient way to localize text within a template.
     For example:
-  
+
     ```javascript
     Ember.STRINGS = {
       '_welcome_': 'Bonjour'
     };
     ```
-  
+
     ```handlebars
     <div class='message'>
       {{loc '_welcome_'}}
     </div>
     ```
-  
+
     ```html
     <div class='message'>
       Bonjour
     </div>
     ```
-  
+
     See [String.loc](/ember/release/classes/String/methods/loc?anchor=loc) for how to
     set up localized string references.
-  
+
     @method loc
     @for Ember.Templates.helpers
     @param {String} str The string to format.
@@ -12563,50 +12563,50 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
   }
   /**
     [Glimmer](https://github.com/tildeio/glimmer) is a templating engine used by Ember.js that is compatible with a subset of the [Handlebars](http://handlebarsjs.com/) syntax.
-  
+
     ### Showing a property
-  
+
     Templates manage the flow of an application's UI, and display state (through
     the DOM) to a user. For example, given a component with the property "name",
     that component's template can use the name in several ways:
-  
+
     ```app/components/person-profile.js
     import Component from '@ember/component';
-  
+
     export default Component.extend({
       name: 'Jill'
     });
     ```
-  
+
     ```app/components/person-profile.hbs
     {{this.name}}
     <div>{{this.name}}</div>
     <span data-name={{this.name}}></span>
     ```
-  
+
     Any time the "name" property on the component changes, the DOM will be
     updated.
-  
+
     Properties can be chained as well:
-  
+
     ```handlebars
     {{@aUserModel.name}}
     <div>{{@listOfUsers.firstObject.name}}</div>
     ```
-  
+
     ### Using Ember helpers
-  
+
     When content is passed in mustaches `{{}}`, Ember will first try to find a helper
     or component with that name. For example, the `if` helper:
-  
+
     ```app/components/person-profile.hbs
     {{if this.name "I have a name" "I have no name"}}
     <span data-has-name={{if this.name true}}></span>
     ```
-  
+
     The returned value is placed where the `{{}}` is called. The above style is
     called "inline". A second style of helper usage is called "block". For example:
-  
+
     ```handlebars
     {{#if this.name}}
       I have a name
@@ -12614,29 +12614,29 @@ define("@ember/-internals/glimmer/index", ["exports", "@ember/polyfills", "@glim
       I have no name
     {{/if}}
     ```
-  
+
     The block form of helpers allows you to control how the UI is created based
     on the values of properties.
     A third form of helper is called "nested". For example here the concat
     helper will add " Doe" to a displayed name if the person has no last name:
-  
+
     ```handlebars
     <span data-name={{concat this.firstName (
       if this.lastName (concat " " this.lastName) "Doe"
     )}}></span>
     ```
-  
+
     Ember's built-in helpers are described under the [Ember.Templates.helpers](/ember/release/classes/Ember.Templates.helpers)
     namespace. Documentation on creating custom helpers can be found under
     [helper](/ember/release/functions/@ember%2Fcomponent%2Fhelper/helper) (or
     under [Helper](/ember/release/classes/Helper) if a helper requires access to
     dependency injection).
-  
+
     ### Invoking a Component
-  
+
     Ember components represent state to the UI of an application. Further
     reading on components can be found under [Component](/ember/release/classes/Component).
-  
+
     @module @ember/component
     @main @ember/component
     @public
@@ -13307,16 +13307,16 @@ define("@ember/-internals/meta/lib/meta", ["exports", "@ember/-internals/utils",
   /**
     Retrieves the meta hash for an object. If `writable` is true ensures the
     hash is writable for this object as well.
-  
+
     The meta object contains information about computed property descriptors as
     well as any watched properties and other information. You generally will
     not access this information directly but instead work with higher level
     methods that manipulate this hash indirectly.
-  
+
     @method meta
     @for Ember
     @private
-  
+
     @param {Object} obj The object to retrieve meta for
     @param {Boolean} [writable=true] Pass `false` if you do not intend to modify
       the meta hash, allowing the method to avoid making an unnecessary copy.
@@ -13458,7 +13458,7 @@ define("@ember/-internals/metal/index", ["exports", "@ember/-internals/meta", "@
     This can be useful for peeking at the value of a computed
     property that is generated lazily, without accidentally causing
     it to be created.
-  
+
     @method cacheFor
     @static
     @for @ember/object/internals
@@ -13511,9 +13511,9 @@ define("@ember/-internals/metal/index", ["exports", "@ember/-internals/meta", "@
     The event system uses a series of nested hashes to store listeners on an
     object. When a listener is registered, or when an event arrives, these
     hashes are consulted to determine which target and action pair to invoke.
-  
+
     The hashes are stored in the object's meta hash, and look like this:
-  
+
         // Object's meta hash
         {
           listeners: {       // variable name: `listenerSet`
@@ -13522,12 +13522,12 @@ define("@ember/-internals/metal/index", ["exports", "@ember/-internals/meta", "@
             ]
           }
         }
-  
+
   */
 
   /**
     Add an event listener
-  
+
     @method addListener
     @static
     @for @ember/object/events
@@ -13552,9 +13552,9 @@ define("@ember/-internals/metal/index", ["exports", "@ember/-internals/meta", "@
   }
   /**
     Remove an event listener
-  
+
     Arguments should match those passed to `addListener`.
-  
+
     @method removeListener
     @static
     @for @ember/object/events
@@ -13586,7 +13586,7 @@ define("@ember/-internals/metal/index", ["exports", "@ember/-internals/meta", "@
     is skipped, and once listeners are removed. A listener without
     a target is executed on the passed object. If an array of actions
     is not passed, the actions stored on the passed object are invoked.
-  
+
     @method sendEvent
     @static
     @for @ember/object/events
@@ -13659,23 +13659,23 @@ define("@ember/-internals/metal/index", ["exports", "@ember/-internals/meta", "@
   /**
     Define a property as a function that should be executed when
     a specified event or events are triggered.
-  
+
     ``` javascript
     import EmberObject from '@ember/object';
     import { on } from '@ember/object/evented';
     import { sendEvent } from '@ember/object/events';
-  
+
     let Job = EmberObject.extend({
       logCompleted: on('completed', function() {
         console.log('Job completed!');
       })
     });
-  
+
     let job = Job.create();
-  
+
     sendEvent(job, 'completed'); // Logs 'Job completed!'
    ```
-  
+
     @method on
     @static
     @for @ember/object/evented
@@ -14017,11 +14017,11 @@ define("@ember/-internals/metal/index", ["exports", "@ember/-internals/meta", "@
   /**
     This function is called just after an object property has changed.
     It will notify any observers and clear caches among other things.
-  
+
     Normally you will not need to call this method directly but if for some
     reason you can't directly watch a property you can invoke this method
     manually.
-  
+
     @method notifyPropertyChange
     @for @ember/object
     @param {Object} obj The object with the property that will change
@@ -14085,14 +14085,14 @@ define("@ember/-internals/metal/index", ["exports", "@ember/-internals/meta", "@
   /**
     Make a series of property changes together in an
     exception-safe way.
-  
+
     ```javascript
     Ember.changeProperties(function() {
       obj1.set('foo', mayBlowUpWhenSet);
       obj2.set('bar', baz);
     });
     ```
-  
+
     @method changeProperties
     @param {Function} callback
     @private
@@ -14244,7 +14244,7 @@ define("@ember/-internals/metal/index", ["exports", "@ember/-internals/meta", "@
   var DECORATOR_DESCRIPTOR_MAP = new WeakMap();
   /**
     Returns the CP descriptor associated with `obj` and `keyName`, if any.
-  
+
     @method descriptorForProperty
     @param {Object} obj the object to check
     @param {String} keyName the key to check
@@ -14268,7 +14268,7 @@ define("@ember/-internals/metal/index", ["exports", "@ember/-internals/meta", "@
   }
   /**
     Check whether a value is a decorator
-  
+
     @method isClassicDecorator
     @param {any} possibleDesc the value to check
     @return {boolean}
@@ -14281,7 +14281,7 @@ define("@ember/-internals/metal/index", ["exports", "@ember/-internals/meta", "@
   }
   /**
     Set a value as a decorator
-  
+
     @method setClassicDecorator
     @param {function} decorator the value to mark as a decorator
     @private
@@ -14482,7 +14482,7 @@ define("@ember/-internals/metal/index", ["exports", "@ember/-internals/meta", "@
   /**
     Objects of this type can implement an interface to respond to requests to
     get and set. The default implementation handles simple properties.
-  
+
     @class Descriptor
     @private
   */
@@ -14549,17 +14549,17 @@ define("@ember/-internals/metal/index", ["exports", "@ember/-internals/meta", "@
   var END_WITH_EACH_REGEX = /\.@each$/;
   /**
     Expands `pattern`, invoking `callback` for each expansion.
-  
+
     The only pattern supported is brace-expansion, anything else will be passed
     once to `callback` directly.
-  
+
     Example
-  
+
     ```js
     import { expandProperties } from '@ember/object/computed';
-  
+
     function echo(arg){ console.log(arg); }
-  
+
     expandProperties('foo.bar', echo);              //=> 'foo.bar'
     expandProperties('{foo,bar}', echo);            //=> 'foo', 'bar'
     expandProperties('foo.{bar,baz}', echo);        //=> 'foo.bar', 'foo.baz'
@@ -14568,7 +14568,7 @@ define("@ember/-internals/metal/index", ["exports", "@ember/-internals/meta", "@
     expandProperties('{foo,bar}.{spam,eggs}', echo) //=> 'foo.spam', 'foo.eggs', 'bar.spam', 'bar.eggs'
     expandProperties('{foo}.bar.{baz}')             //=> 'foo.bar.baz'
     ```
-  
+
     @method expandProperties
     @static
     @for @ember/object/computed
@@ -14620,21 +14620,21 @@ define("@ember/-internals/metal/index", ["exports", "@ember/-internals/meta", "@
     NOTE: This is a low-level method used by other parts of the API. You almost
     never want to call this method directly. Instead you should use
     `mixin()` to define new properties.
-  
+
     Defines a property on an object. This method works much like the ES5
     `Object.defineProperty()` method except that it can also accept computed
     properties and other special descriptors.
-  
+
     Normally this method takes only three parameters. However if you pass an
     instance of `Descriptor` as the third param then you can pass an
     optional value as the fourth parameter. This is often more efficient than
     creating new descriptor hashes for each property.
-  
+
     ## Examples
-  
+
     ```javascript
     import { defineProperty, computed } from '@ember/object';
-  
+
     // ES5 compatible mode
     defineProperty(contact, 'firstName', {
       writable: true,
@@ -14642,16 +14642,16 @@ define("@ember/-internals/metal/index", ["exports", "@ember/-internals/meta", "@
       enumerable: true,
       value: 'Charles'
     });
-  
+
     // define a simple property
     defineProperty(contact, 'lastName', undefined, 'Jolley');
-  
+
     // define a computed property
     defineProperty(contact, 'fullName', computed('firstName', 'lastName', function() {
       return this.firstName+' '+this.lastName;
     }));
     ```
-  
+
     @public
     @method defineProperty
     @static
@@ -14781,25 +14781,25 @@ define("@ember/-internals/metal/index", ["exports", "@ember/-internals/meta", "@
     Gets the value of a property on an object. If the property is computed,
     the function will be invoked. If the property is not defined but the
     object implements the `unknownProperty` method then that will be invoked.
-  
+
     ```javascript
     import { get } from '@ember/object';
     get(obj, "name");
     ```
-  
+
     If you plan to run on IE8 and older browsers then you should use this
     method anytime you want to retrieve a property on an object that you don't
     know for sure is private. (Properties beginning with an underscore '_'
     are considered private.)
-  
+
     On all newer browsers, you only need to use this method to retrieve
     properties if the property might not be defined on the object and you want
     to respect the `unknownProperty` handler. Otherwise you can ignore this
     method.
-  
+
     Note that if the object itself is `undefined`, this method will throw
     an error.
-  
+
     @method get
     @for @ember/object
     @static
@@ -14887,12 +14887,12 @@ define("@ember/-internals/metal/index", ["exports", "@ember/-internals/meta", "@
   /**
     Retrieves the value of a property from an Object, or a default value in the
     case that the property returns `undefined`.
-  
+
     ```javascript
     import { getWithDefault } from '@ember/object';
     getWithDefault(person, 'lastName', 'Doe');
     ```
-  
+
     @method getWithDefault
     @for @ember/object
     @static
@@ -14924,12 +14924,12 @@ define("@ember/-internals/metal/index", ["exports", "@ember/-internals/meta", "@
     implements the `setUnknownProperty` method, then instead of setting the
     value of the property on the object, its `setUnknownProperty` handler
     will be invoked with the two parameters `keyName` and `value`.
-  
+
     ```javascript
     import { set } from '@ember/object';
     set(obj, "name", value);
     ```
-  
+
     @method set
     @static
     @for @ember/object
@@ -15010,17 +15010,17 @@ define("@ember/-internals/metal/index", ["exports", "@ember/-internals/meta", "@
   /**
     Error-tolerant form of `set`. Will not blow up if any part of the
     chain is `undefined`, `null`, or destroyed.
-  
+
     This is primarily used when syncing bindings, which may try to update after
     an object has been destroyed.
-  
+
     ```javascript
     import { trySet } from '@ember/object';
-  
+
     let obj = { name: "Zoey" };
     trySet(obj, "contacts.twitter", "@emberjs");
     ```
-  
+
     @method trySet
     @static
     @for @ember/object
@@ -15048,7 +15048,7 @@ define("@ember/-internals/metal/index", ["exports", "@ember/-internals/meta", "@
     will only be called once and the result will be cached. You can specify
     various properties that your computed property depends on. This will force the
     cached result to be cleared if the dependencies are modified, and lazily recomputed the next time something asks for it.
-  
+
     In the following example we decorate a getter - `fullName` -  by calling
     `computed` with the property dependencies (`firstName` and `lastName`) as
     arguments. The `fullName` getter will be called once (regardless of how many
@@ -15056,185 +15056,185 @@ define("@ember/-internals/metal/index", ["exports", "@ember/-internals/meta", "@
     `firstName` or `lastName` are updated any future calls to `fullName` will
     incorporate the new values, and any watchers of the value such as templates
     will be updated:
-  
+
     ```javascript
     import { computed, set } from '@ember/object';
-  
+
     class Person {
       constructor(firstName, lastName) {
         set(this, 'firstName', firstName);
         set(this, 'lastName', lastName);
       }
-  
+
       @computed('firstName', 'lastName')
       get fullName() {
         return `${this.firstName} ${this.lastName}`;
       }
     });
-  
+
     let tom = new Person('Tom', 'Dale');
-  
+
     tom.fullName; // 'Tom Dale'
     ```
-  
+
     You can also provide a setter, which will be used when updating the computed
     property. Ember's `set` function must be used to update the property
     since it will also notify observers of the property:
-  
+
     ```javascript
     import { computed, set } from '@ember/object';
-  
+
     class Person {
       constructor(firstName, lastName) {
         set(this, 'firstName', firstName);
         set(this, 'lastName', lastName);
       }
-  
+
       @computed('firstName', 'lastName')
       get fullName() {
         return `${this.firstName} ${this.lastName}`;
       }
-  
+
       set fullName(value) {
         let [firstName, lastName] = value.split(' ');
-  
+
         set(this, 'firstName', firstName);
         set(this, 'lastName', lastName);
       }
     });
-  
+
     let person = new Person();
-  
+
     set(person, 'fullName', 'Peter Wagenet');
     person.firstName; // 'Peter'
     person.lastName;  // 'Wagenet'
     ```
-  
+
     You can also pass a getter function or object with `get` and `set` functions
     as the last argument to the computed decorator. This allows you to define
     computed property _macros_:
-  
+
     ```js
     import { computed } from '@ember/object';
-  
+
     function join(...keys) {
       return computed(...keys, function() {
         return keys.map(key => this[key]).join(' ');
       });
     }
-  
+
     class Person {
       @join('firstName', 'lastName')
       fullName;
     }
     ```
-  
+
     Note that when defined this way, getters and setters receive the _key_ of the
     property they are decorating as the first argument. Setters receive the value
     they are setting to as the second argument instead. Additionally, setters must
     _return_ the value that should be cached:
-  
+
     ```javascript
     import { computed, set } from '@ember/object';
-  
+
     function fullNameMacro(firstNameKey, lastNameKey) {
       return computed(firstNameKey, lastNameKey, {
         get() {
           return `${this[firstNameKey]} ${this[lastNameKey]}`;
         }
-  
+
         set(key, value) {
           let [firstName, lastName] = value.split(' ');
-  
+
           set(this, firstNameKey, firstName);
           set(this, lastNameKey, lastName);
-  
+
           return value;
         }
       });
     }
-  
+
     class Person {
       constructor(firstName, lastName) {
         set(this, 'firstName', firstName);
         set(this, 'lastName', lastName);
       }
-  
+
       @fullNameMacro fullName;
     });
-  
+
     let person = new Person();
-  
+
     set(person, 'fullName', 'Peter Wagenet');
     person.firstName; // 'Peter'
     person.lastName;  // 'Wagenet'
     ```
-  
+
     Computed properties can also be used in classic classes. To do this, we
     provide the getter and setter as the last argument like we would for a macro,
     and we assign it to a property on the class definition. This is an _anonymous_
     computed macro:
-  
+
     ```javascript
     import EmberObject, { computed, set } from '@ember/object';
-  
+
     let Person = EmberObject.extend({
       // these will be supplied by `create`
       firstName: null,
       lastName: null,
-  
+
       fullName: computed('firstName', 'lastName', {
         get() {
           return `${this.firstName} ${this.lastName}`;
         }
-  
+
         set(key, value) {
           let [firstName, lastName] = value.split(' ');
-  
+
           set(this, 'firstName', firstName);
           set(this, 'lastName', lastName);
-  
+
           return value;
         }
       })
     });
-  
+
     let tom = Person.create({
       firstName: 'Tom',
       lastName: 'Dale'
     });
-  
+
     tom.get('fullName') // 'Tom Dale'
     ```
-  
+
     You can overwrite computed property without setters with a normal property (no
     longer computed) that won't change if dependencies change. You can also mark
     computed property as `.readOnly()` and block all attempts to set it.
-  
+
     ```javascript
     import { computed, set } from '@ember/object';
-  
+
     class Person {
       constructor(firstName, lastName) {
         set(this, 'firstName', firstName);
         set(this, 'lastName', lastName);
       }
-  
+
       @computed('firstName', 'lastName').readOnly()
       get fullName() {
         return `${this.firstName} ${this.lastName}`;
       }
     });
-  
+
     let person = new Person();
     person.set('fullName', 'Peter Wagenet'); // Uncaught Error: Cannot set read-only property "fullName" on object: <(...):emberXXX>
     ```
-  
+
     Additional resources:
     - [Decorators RFC](https://github.com/emberjs/rfcs/blob/master/text/0408-decorators.md)
     - [New CP syntax RFC](https://github.com/emberjs/rfcs/blob/master/text/0011-improved-cp-syntax.md)
     - [New computed syntax explained in "Ember 1.12 released" ](https://emberjs.com/blog/2015/05/13/ember-1-12-released.html#toc_new-computed-syntax)
-  
+
     @class ComputedProperty
     @public
   */
@@ -15702,9 +15702,9 @@ define("@ember/-internals/metal/index", ["exports", "@ember/-internals/meta", "@
     this doesn't matter (you would normally just access the property directly and use its value),
     but for some tooling specific scenarios (e.g. the ember-inspector) it is important to
     differentiate if a property is a computed property or a "normal" property.
-  
+
     This will work on either a class's prototype or an instance itself.
-  
+
     @static
     @method isComputed
     @for @ember/debug
@@ -15814,7 +15814,7 @@ define("@ember/-internals/metal/index", ["exports", "@ember/-internals/meta", "@
   /**
     Used internally to allow changing properties in a backwards compatible way, and print a helpful
     deprecation warning.
-  
+
     @method deprecateProperty
     @param {Object} object The object to add the deprecated property to.
     @param {String} deprecatedKey The property to add (and print deprecation warnings upon accessing).
@@ -15873,7 +15873,7 @@ define("@ember/-internals/metal/index", ["exports", "@ember/-internals/meta", "@
     Returns true if the passed value is null or undefined. This avoids errors
     from JSLint complaining about use of ==, which can be technically
     confusing.
-  
+
     ```javascript
     isNone();              // true
     isNone(null);          // true
@@ -15882,7 +15882,7 @@ define("@ember/-internals/metal/index", ["exports", "@ember/-internals/meta", "@
     isNone([]);            // false
     isNone(function() {}); // false
     ```
-  
+
     @method isNone
     @static
     @for @ember/utils
@@ -15902,13 +15902,13 @@ define("@ember/-internals/metal/index", ["exports", "@ember/-internals/meta", "@
   /**
     Verifies that a value is `null` or `undefined`, an empty string, or an empty
     array.
-  
+
     Constrains the rules on `isNone` by returning true for empty strings and
     empty arrays.
-  
+
     If the value is an object with a `size` property of type number, it is used
     to check emptiness.
-  
+
     ```javascript
     isEmpty();                 // true
     isEmpty(null);             // true
@@ -15924,7 +15924,7 @@ define("@ember/-internals/metal/index", ["exports", "@ember/-internals/meta", "@
     isEmpty({ size: 1 })       // false
     isEmpty({ size: () => 0 }) // false
     ```
-  
+
     @method isEmpty
     @static
     @for @ember/utils
@@ -15975,10 +15975,10 @@ define("@ember/-internals/metal/index", ["exports", "@ember/-internals/meta", "@
 
   /**
     A value is blank if it is empty or a whitespace string.
-  
+
     ```javascript
     import { isBlank } from '@ember/utils';
-  
+
     isBlank();                // true
     isBlank(null);            // true
     isBlank(undefined);       // true
@@ -15991,7 +15991,7 @@ define("@ember/-internals/metal/index", ["exports", "@ember/-internals/meta", "@
     isBlank('Hello world');   // false
     isBlank([1,2,3]);         // false
     ```
-  
+
     @method isBlank
     @static
     @for @ember/utils
@@ -16011,7 +16011,7 @@ define("@ember/-internals/metal/index", ["exports", "@ember/-internals/meta", "@
 
   /**
     A value is present if it not `isBlank`.
-  
+
     ```javascript
     isPresent();                // false
     isPresent(null);            // false
@@ -16030,7 +16030,7 @@ define("@ember/-internals/metal/index", ["exports", "@ember/-internals/meta", "@
     isPresent('\n\t Hello');    // true
     isPresent([1, 2, 3]);       // true
     ```
-  
+
     @method isPresent
     @static
     @for @ember/utils
@@ -16050,9 +16050,9 @@ define("@ember/-internals/metal/index", ["exports", "@ember/-internals/meta", "@
 
   /**
     Helper class that allows you to register your library with Ember.
-  
+
     Singleton created at `Ember.libraries`.
-  
+
     @class Libraries
     @constructor
     @private
@@ -16146,23 +16146,23 @@ define("@ember/-internals/metal/index", ["exports", "@ember/-internals/meta", "@
   /**
     To get multiple properties at once, call `getProperties`
     with an object followed by a list of strings or an array:
-  
+
     ```javascript
     import { getProperties } from '@ember/object';
-  
+
     getProperties(record, 'firstName', 'lastName', 'zipCode');
     // { firstName: 'John', lastName: 'Doe', zipCode: '10011' }
     ```
-  
+
     is equivalent to:
-  
+
     ```javascript
     import { getProperties } from '@ember/object';
-  
+
     getProperties(record, ['firstName', 'lastName', 'zipCode']);
     // { firstName: 'John', lastName: 'Doe', zipCode: '10011' }
     ```
-  
+
     @method getProperties
     @static
     @for @ember/object
@@ -16196,18 +16196,18 @@ define("@ember/-internals/metal/index", ["exports", "@ember/-internals/meta", "@
     Set a list of properties on an object. These properties are set inside
     a single `beginPropertyChanges` and `endPropertyChanges` batch, so
     observers will be buffered.
-  
+
     ```javascript
     import EmberObject from '@ember/object';
     let anObject = EmberObject.create();
-  
+
     anObject.setProperties({
       firstName: 'Stanley',
       lastName: 'Stuart',
       age: 21
     });
     ```
-  
+
     @method setProperties
     @static
     @for @ember/object
@@ -16237,7 +16237,7 @@ define("@ember/-internals/metal/index", ["exports", "@ember/-internals/meta", "@
   /**
     Enqueues finalization on an object so that it can be garbage collected.
     Multiple calls will have no effect.
-  
+
     @method destroy
     @for Ember
     @param {Object} obj the object to destroy
@@ -16853,10 +16853,10 @@ define("@ember/-internals/metal/index", ["exports", "@ember/-internals/meta", "@
   /**
     The `Mixin` class allows you to create mixins, whose properties can be
     added to other classes. For instance,
-  
+
     ```javascript
     import Mixin from '@ember/object/mixin';
-  
+
     const EditableMixin = Mixin.create({
       edit() {
         console.log('starting to edit');
@@ -16865,47 +16865,47 @@ define("@ember/-internals/metal/index", ["exports", "@ember/-internals/meta", "@
       isEditing: false
     });
     ```
-  
+
     ```javascript
     import EmberObject from '@ember/object';
     import EditableMixin from '../mixins/editable';
-  
+
     // Mix mixins into classes by passing them as the first arguments to
     // `.extend.`
     const Comment = EmberObject.extend(EditableMixin, {
       post: null
     });
-  
+
     let comment = Comment.create({
       post: somePost
     });
-  
+
     comment.edit(); // outputs 'starting to edit'
     ```
-  
+
     Note that Mixins are created with `Mixin.create`, not
     `Mixin.extend`.
-  
+
     Note that mixins extend a constructor's prototype so arrays and object literals
     defined as properties will be shared amongst objects that implement the mixin.
     If you want to define a property in a mixin that is not shared, you can define
     it either as a computed property or have it be created on initialization of the object.
-  
+
     ```javascript
     // filters array will be shared amongst any object implementing mixin
     import Mixin from '@ember/object/mixin';
     import { A } from '@ember/array';
-  
+
     const FilterableMixin = Mixin.create({
       filters: A()
     });
     ```
-  
+
     ```javascript
     import Mixin from '@ember/object/mixin';
     import { A } from '@ember/array';
     import { computed } from '@ember/object';
-  
+
     // filters will be a separate array for every object implementing the mixin
     const FilterableMixin = Mixin.create({
       filters: computed(function() {
@@ -16913,22 +16913,22 @@ define("@ember/-internals/metal/index", ["exports", "@ember/-internals/meta", "@
       })
     });
     ```
-  
+
     ```javascript
     import Mixin from '@ember/object/mixin';
     import { A } from '@ember/array';
-  
+
     // filters will be created as a separate array during the object's initialization
     const Filterable = Mixin.create({
       filters: null,
-  
+
       init() {
         this._super(...arguments);
         this.set("filters", A());
       }
     });
     ```
-  
+
     @class Mixin
     @public
   */
@@ -17152,12 +17152,12 @@ define("@ember/-internals/metal/index", ["exports", "@ember/-internals/meta", "@
   }
   /**
     Makes a method available via an additional name.
-  
+
     ```app/utils/person.js
     import EmberObject, {
       aliasMethod
     } from '@ember/object';
-  
+
     export default EmberObject.extend({
       name() {
         return 'Tomhuda Katzdale';
@@ -17165,14 +17165,14 @@ define("@ember/-internals/metal/index", ["exports", "@ember/-internals/meta", "@
       moniker: aliasMethod('name')
     });
     ```
-  
+
     ```javascript
     let goodGuy = Person.create();
-  
+
     goodGuy.name();    // 'Tomhuda Katzdale'
     goodGuy.moniker(); // 'Tomhuda Katzdale'
     ```
-  
+
     @method aliasMethod
     @static
     @deprecated Use a shared utility method instead
@@ -17371,19 +17371,19 @@ define("@ember/-internals/owner/index", ["exports", "@ember/-internals/utils"],
     are created via a factory and dependency injection system. Each of these
     objects is the responsibility of an "owner", which handled its
     instantiation and manages its lifetime.
-  
+
     `getOwner` fetches the owner object responsible for an instance. This can
     be used to lookup or resolve other class instances, or register new factories
     into the owner.
-  
+
     For example, this component dynamically looks up a service based on the
     `audioType` passed as an argument:
-  
+
     ```app/components/play-audio.js
     import Component from '@glimmer/component';
     import { action } from '@ember/object';
     import { getOwner } from '@ember/application';
-  
+
     // Usage:
     //
     //   <PlayAudio @audioType={{@model.audioType}} @audioFile={{@model.file}}/>
@@ -17393,7 +17393,7 @@ define("@ember/-internals/owner/index", ["exports", "@ember/-internals/utils"],
         let owner = getOwner(this);
         return owner.lookup(`service:${this.args.audioType}`);
       }
-  
+
       @action
       onPlay() {
         let player = this.audioService;
@@ -17401,7 +17401,7 @@ define("@ember/-internals/owner/index", ["exports", "@ember/-internals/utils"],
       }
     }
     ```
-  
+
     @method getOwner
     @static
     @for @ember/application
@@ -17419,7 +17419,7 @@ define("@ember/-internals/owner/index", ["exports", "@ember/-internals/utils"],
   /**
     `setOwner` forces a new owner on a given object instance. This is primarily
     useful in some testing cases.
-  
+
     @method setOwner
     @static
     @for @ember/application
@@ -17743,21 +17743,21 @@ define("@ember/-internals/routing/lib/location/api", ["exports", "@ember/debug"]
   /**
     Location returns an instance of the correct implementation of
     the `location` API.
-  
+
     ## Implementations
-  
+
     You can pass an implementation name (`hash`, `history`, `none`, `auto`) to force a
     particular implementation to be used in your application.
-  
+
     See [HashLocation](/ember/release/classes/HashLocation).
     See [HistoryLocation](/ember/release/classes/HistoryLocation).
     See [NoneLocation](/ember/release/classes/NoneLocation).
     See [AutoLocation](/ember/release/classes/AutoLocation).
-  
+
     ## Location API
-  
+
     Each location implementation must provide the following methods:
-  
+
     * implementation: returns the string name used to reference the implementation.
     * getURL: returns the current URL.
     * setURL(path): sets the current URL.
@@ -17768,18 +17768,18 @@ define("@ember/-internals/routing/lib/location/api", ["exports", "@ember/debug"]
         necessary. If the location needs to redirect to a different URL, it
         can cancel routing by setting the `cancelRouterSetup` property on itself
         to `false`.
-  
+
     Calling setURL or replaceURL will not trigger onUpdateURL callbacks.
-  
+
     ## Custom implementation
-  
+
     Ember scans `app/locations/*` for extending the Location API.
-  
+
     Example:
-  
+
     ```javascript
     import HistoryLocation from '@ember/routing/history-location';
-  
+
     export default class MyHistory {
       implementation: 'my-custom-history',
       constructor() {
@@ -17793,7 +17793,7 @@ define("@ember/-internals/routing/lib/location/api", ["exports", "@ember/debug"]
       }
     }
     ```
-  
+
     @class Location
     @private
   */
@@ -17844,42 +17844,42 @@ define("@ember/-internals/routing/lib/location/auto_location", ["exports", "@emb
   /**
     AutoLocation will select the best location option based off browser
     support with the priority order: history, hash, none.
-  
+
     Clean pushState paths accessed by hashchange-only browsers will be redirected
     to the hash-equivalent and vice versa so future transitions are consistent.
-  
+
     Keep in mind that since some of your users will use `HistoryLocation`, your
     server must serve the Ember app at all the routes you define.
-  
+
     Browsers that support the `history` API will use `HistoryLocation`, those that
     do not, but still support the `hashchange` event will use `HashLocation`, and
     in the rare case neither is supported will use `NoneLocation`.
-  
+
     Example:
-  
+
     ```app/router.js
     Router.map(function() {
       this.route('posts', function() {
         this.route('new');
       });
     });
-  
+
     Router.reopen({
       location: 'auto'
     });
     ```
-  
+
     This will result in a posts.new url of `/posts/new` for modern browsers that
     support the `history` api or `/#/posts/new` for older ones, like Internet
     Explorer 9 and below.
-  
+
     When a user visits a link to your application, they will be automatically
     upgraded or downgraded to the appropriate `Location` class, with the URL
     transformed accordingly, if needed.
-  
+
     Keep in mind that since some of your users will use `HistoryLocation`, your
     server must serve the Ember app at all the routes you define.
-  
+
     @class AutoLocation
     @static
     @protected
@@ -18059,7 +18059,7 @@ define("@ember/-internals/routing/lib/location/auto_location", ["exports", "@emb
   }
   /**
     @private
-  
+
     Returns the current path as it should appear for HistoryLocation supported
     browsers. This may very well differ from the real current path (e.g. if it
     starts off as a hashed URL)
@@ -18101,10 +18101,10 @@ define("@ember/-internals/routing/lib/location/auto_location", ["exports", "@emb
   }
   /**
     @private
-  
+
     Returns the current path as it should appear for HashLocation supported
     browsers. This may very well differ from the real current path.
-  
+
     @method _getHashPath
   */
 
@@ -18141,26 +18141,26 @@ define("@ember/-internals/routing/lib/location/hash_location", ["exports", "@emb
     `HashLocation` implements the location API using the browser's
     hash. At present, it relies on a `hashchange` event existing in the
     browser.
-  
+
     Using `HashLocation` results in URLs with a `#` (hash sign) separating the
     server side URL portion of the URL from the portion that is used by Ember.
-  
+
     Example:
-  
+
     ```app/router.js
     Router.map(function() {
       this.route('posts', function() {
         this.route('new');
       });
     });
-  
+
     Router.reopen({
       location: 'hash'
     });
     ```
-  
+
     This will result in a posts.new url of `/#/posts/new`.
-  
+
     @class HashLocation
     @extends EmberObject
     @protected
@@ -18324,29 +18324,29 @@ define("@ember/-internals/routing/lib/location/history_location", ["exports", "@
   /**
     HistoryLocation implements the location API using the browser's
     history.pushState API.
-  
+
     Using `HistoryLocation` results in URLs that are indistinguishable from a
     standard URL. This relies upon the browser's `history` API.
-  
+
     Example:
-  
+
     ```app/router.js
     Router.map(function() {
       this.route('posts', function() {
         this.route('new');
       });
     });
-  
+
     Router.reopen({
       location: 'history'
     });
     ```
-  
+
     This will result in a posts.new url of `/posts/new`.
-  
+
     Keep in mind that your server must serve the Ember app at all the routes you
     define.
-  
+
     @class HistoryLocation
     @extends EmberObject
     @protected
@@ -18602,11 +18602,11 @@ define("@ember/-internals/routing/lib/location/none_location", ["exports", "@emb
     testing, or when you need to manage state with your Router, but temporarily
     don't want it to muck with the URL (for example when you embed your
     application in a larger page).
-  
+
     Using `NoneLocation` causes Ember to not store the applications URL state
     in the actual URL. This is generally used for testing purposes, and is one
     of the changes made when calling `App.setupForTesting()`.
-  
+
     @class NoneLocation
     @extends EmberObject
     @protected
@@ -18735,7 +18735,7 @@ define("@ember/-internals/routing/lib/location/util", ["exports"], function (_ex
 
   /**
     @private
-  
+
     Returns the current `location.pathname`, normalized for IE inconsistencies.
   */
   function getPath(location) {
@@ -18749,7 +18749,7 @@ define("@ember/-internals/routing/lib/location/util", ["exports"], function (_ex
   }
   /**
     @private
-  
+
     Returns the current `location.search`.
   */
 
@@ -18759,7 +18759,7 @@ define("@ember/-internals/routing/lib/location/util", ["exports"], function (_ex
   }
   /**
     @private
-  
+
     Returns the hash or empty string
   */
 
@@ -18792,9 +18792,9 @@ define("@ember/-internals/routing/lib/location/util", ["exports"], function (_ex
   /*
     `documentMode` only exist in Internet Explorer, and it's tested because IE8 running in
     IE7 compatibility mode claims to support `onhashchange` but actually does not.
-  
+
     `global` is an object that may have an `onhashchange` property.
-  
+
     @private
     @function supportsHashChange
   */
@@ -18807,7 +18807,7 @@ define("@ember/-internals/routing/lib/location/util", ["exports"], function (_ex
     `userAgent` is a user agent string. We use user agent testing here, because
     the stock Android browser is known to have buggy versions of the History API,
     in some Android versions.
-  
+
     @private
     @function supportsHistory
   */
@@ -18829,7 +18829,7 @@ define("@ember/-internals/routing/lib/location/util", ["exports"], function (_ex
   /**
     Replaces the current location, making sure we explicitly include the origin
     to prevent redirecting to a different origin.
-  
+
     @private
   */
 
@@ -18870,31 +18870,31 @@ define("@ember/-internals/routing/lib/services/router", ["exports", "@ember/-int
   }
   /**
      The Router service is the public API that provides access to the router.
-  
+
      The immediate benefit of the Router service is that you can inject it into components,
      giving them a friendly way to initiate transitions and ask questions about the current
      global router state.
-  
+
      In this example, the Router service is injected into a component to initiate a transition
      to a dedicated route:
-  
+
      ```app/components/example.js
      import Component from '@glimmer/component';
      import { action } from '@ember/object';
      import { inject as service } from '@ember/service';
-  
+
      export default class ExampleComponent extends Component {
        @service router;
-  
+
        @action
        next() {
          this.router.transitionTo('other.route');
        }
      }
      ```
-  
+
      Like any service, it can also be injected into helpers, routes, etc.
-  
+
      @public
      @extends Service
      @class RouterService
@@ -19357,10 +19357,10 @@ define("@ember/-internals/routing/lib/services/routing", ["exports", "@ember/obj
   /**
     The Routing service is used by LinkComponent, and provides facilities for
     the component/view layer to interact with the router.
-  
+
     This is a private service for internal usage only. For public usage,
     refer to the `Router` service.
-  
+
     @private
     @class RoutingService
   */
@@ -19458,7 +19458,7 @@ define("@ember/-internals/routing/lib/system/cache", ["exports"], function (_exp
   /**
     A two-tiered cache with support for fallback values when doing lookups.
     Uses "buckets" and then "keys" to cache values.
-  
+
     @private
     @class BucketCache
   */
@@ -19514,7 +19514,7 @@ define("@ember/-internals/routing/lib/system/controller_for", ["exports"], funct
 
   /**
     Finds a controller instance.
-  
+
     @for Ember
     @method controllerFor
     @private
@@ -19777,7 +19777,7 @@ define("@ember/-internals/routing/lib/system/generate_controller", ["exports", "
 
   /**
     Generates a controller factory
-  
+
     @for Ember
     @method generateControllerFactory
     @private
@@ -19797,7 +19797,7 @@ define("@ember/-internals/routing/lib/system/generate_controller", ["exports", "
   /**
     Generates and instantiates a controller extending from `controller:basic`
     if present, or `Controller` if not.
-  
+
     @for Ember
     @method generateController
     @private
@@ -19851,7 +19851,7 @@ define("@ember/-internals/routing/lib/system/route-info", [], function () {
     It is read-only and internally immutable. It is also not
     observable, because a Transition instance is never
     changed after creation.
-  
+
     @class RouteInfoWithAttributes
     @public
   */
@@ -19931,28 +19931,28 @@ define("@ember/-internals/routing/lib/system/route-info", [], function () {
     of `RouteInfo`s from the topmost to leafmost.
     Returns the first `RouteInfo` in the linked list
     for which the callback returns true.
-  
+
       This method is similar to the `find()` method
       defined in ECMAScript 2015.
-  
+
       The callback method you provide should have the
       following signature (all parameters are optional):
-  
+
       ```javascript
       function(item, index, array);
       ```
-  
+
       - `item` is the current item in the iteration.
       - `index` is the current index in the iteration.
       - `array` is the array itself.
-  
+
       It should return the `true` to include the item in
       the results, `false` otherwise.
-  
+
       Note that in addition to a callback, you can also
       pass an optional target object that will be set as
       `this` on the context.
-  
+
     @method find
     @param {Function} callback the callback to execute
     @param {Object} [target*] optional target to use
@@ -19966,7 +19966,7 @@ define("@ember/-internals/routing/lib/system/route-info", [], function () {
     read-only and internally immutable. It is also not
     observable, because a Transition instance is never
     changed after creation.
-  
+
     @class RouteInfo
     @public
   */
@@ -20032,28 +20032,28 @@ define("@ember/-internals/routing/lib/system/route-info", [], function () {
     of `RouteInfo`s from the topmost to leafmost.
     Returns the first `RouteInfo` in the linked list
     for which the callback returns true.
-  
+
       This method is similar to the `find()` method
       defined in ECMAScript 2015.
-  
+
       The callback method you provide should have the
       following signature (all parameters are optional):
-  
+
       ```javascript
       function(item, index, array);
       ```
-  
+
       - `item` is the current item in the iteration.
       - `index` is the current index in the iteration.
       - `array` is the array itself.
-  
+
       It should return the `true` to include the item in
       the results, `false` otherwise.
-  
+
       Note that in addition to a callback, you can also
       pass an optional target object that will be set as
       `this` on the context.
-  
+
     @method find
     @param {Function} callback the callback to execute
     @param {Object} [target*] optional target to use
@@ -20105,7 +20105,7 @@ define("@ember/-internals/routing/lib/system/route", ["exports", "@ember/polyfil
   /**
     The `Route` class is used to define individual routes. Refer to
     the [routing guide](https://guides.emberjs.com/release/routing/) for documentation.
-  
+
     @class Route
     @extends EmberObject
     @uses ActionHandler
@@ -21835,40 +21835,40 @@ define("@ember/-internals/routing/lib/system/route", ["exports", "@ember/polyfil
   /**
       A hook you can implement to convert the route's model into parameters
       for the URL.
-  
+
       ```app/router.js
       // ...
-  
+
       Router.map(function() {
         this.route('post', { path: '/posts/:post_id' });
       });
-  
+
       ```
-  
+
       ```app/routes/post.js
       import Route from '@ember/routing/route';
-  
+
       export default class PostRoute extends Route {
         model({ post_id }) {
           // the server returns `{ id: 12 }`
           return fetch(`/posts/${post_id}`;
         }
-  
+
         serialize(model) {
           // this will make the URL `/posts/12`
           return { post_id: model.id };
         }
       }
       ```
-  
+
       The default `serialize` method will insert the model's `id` into the
       route's dynamic segment (in this case, `:post_id`) if the segment contains '_id'.
       If the route has multiple dynamic segments or does not contain '_id', `serialize`
       will return `getProperties(model, params)`
-  
+
       This method is called when `transitionTo` is called with a context
       in order to populate the URL.
-  
+
       @method serialize
       @param {Object} model the routes model
       @param {Array} params an Array of parameter names for the current
@@ -22443,7 +22443,7 @@ define("@ember/-internals/routing/lib/system/router", ["exports", "@ember/-inter
   /**
     The `EmberRouter` class manages the application state and URLs. Refer to
     the [routing guide](https://guides.emberjs.com/release/routing/) for documentation.
-  
+
     @class EmberRouter
     @extends EmberObject
     @uses Evented
@@ -23472,9 +23472,9 @@ define("@ember/-internals/routing/lib/system/router", ["exports", "@ember/-inter
     and the routeInfos given were for 'foo.bar.baz', then the given callback
     will be invoked with the routes for 'foo.bar', 'foo', and 'application'
     individually.
-  
+
     If the callback returns anything other than `true`, then iteration will stop.
-  
+
     @private
     @param {Route} originRoute
     @param {Array<RouteInfo>} routeInfos
@@ -23610,7 +23610,7 @@ define("@ember/-internals/routing/lib/system/router", ["exports", "@ember/-inter
   /**
     Finds the name of the substate route if it exists for the given route. A
     substate route is of the form `route_state`, such as `foo_loading`.
-  
+
     @private
     @param {Route} route
     @param {String} state
@@ -23633,7 +23633,7 @@ define("@ember/-internals/routing/lib/system/router", ["exports", "@ember/-inter
     Finds the name of the state route if it exists for the given route. A state
     route is of the form `route.state`, such as `foo.loading`. Properly Handles
     `application` named routes.
-  
+
     @private
     @param {Route} route
     @param {String} state
@@ -23655,7 +23655,7 @@ define("@ember/-internals/routing/lib/system/router", ["exports", "@ember/-inter
   /**
     Determines whether or not a route has been defined by checking that the route
     is in the Router's map and the owner has a registration for that route.
-  
+
     @private
     @param {Owner} owner
     @param {Router} router
@@ -24114,7 +24114,7 @@ define("@ember/-internals/routing/lib/system/transition", [], function () {
     explicitly via `abort` or by attempting another transition while a
     previous one is still underway. An aborted transition can also
     be `retry()`d later.
-  
+
     @class Transition
     @public
   */
@@ -24126,7 +24126,7 @@ define("@ember/-internals/routing/lib/system/transition", [], function () {
     Transition's promise, but not the Transition object itself, since
     Transition object can be externally `abort`ed, while the promise
     cannot.
-  
+
     @property promise
     @type {Object}
     @public
@@ -24138,7 +24138,7 @@ define("@ember/-internals/routing/lib/system/transition", [], function () {
     hook and shared with a later hook. Properties set on `data` will
     be copied to new transitions generated by calling `retry` on this
     transition.
-  
+
     @property data
     @type {Object}
     @public
@@ -24147,11 +24147,11 @@ define("@ember/-internals/routing/lib/system/transition", [], function () {
   /**
     A standard promise hook that resolves if the transition
     succeeds and rejects if it fails/redirects/aborts.
-  
+
     Forwards to the internal `promise` property which you can
     use in situations where you want to pass around a thennable,
     but not the Transition itself.
-  
+
     @method then
     @param {Function} onFulfilled
     @param {Function} onRejected
@@ -24162,11 +24162,11 @@ define("@ember/-internals/routing/lib/system/transition", [], function () {
   */
 
   /**
-  
+
     Forwards to the internal `promise` property which you can
     use in situations where you want to pass around a thennable,
     but not the Transition itself.
-  
+
     @method catch
     @param {Function} onRejection
     @param {String} label optional string for labeling the promise.
@@ -24176,11 +24176,11 @@ define("@ember/-internals/routing/lib/system/transition", [], function () {
   */
 
   /**
-  
+
     Forwards to the internal `promise` property which you can
     use in situations where you want to pass around a thennable,
     but not the Transition itself.
-  
+
     @method finally
     @param {Function} callback
     @param {String} label optional string for labeling the promise.
@@ -24192,25 +24192,25 @@ define("@ember/-internals/routing/lib/system/transition", [], function () {
   /**
     Aborts the Transition. Note you can also implicitly abort a transition
     by initiating another transition while a previous one is underway.
-  
+
     @method abort
     @return {Transition} this transition
     @public
   */
 
   /**
-  
+
     Retries a previously-aborted transition (making sure to abort the
     transition if it's still active). Returns a new transition that
     represents the new attempt to transition.
-  
+
     @method retry
     @return {Transition} new transition
     @public
     */
 
   /**
-  
+
     Sets the URL-changing method to be employed at the end of a
     successful transition. By default, a new Transition will just
     use `updateURL`, but passing 'replace' to this method will
@@ -24219,25 +24219,25 @@ define("@ember/-internals/routing/lib/system/transition", [], function () {
     that don't update the URL at completion (this is also used for
     handleURL, since the URL has already changed before the
     transition took place).
-  
+
     @method method
     @param {String} method the type of URL-changing method to use
       at the end of a transition. Accepted values are 'replace',
       falsy values, or any other non-falsy value (which is
       interpreted as an updateURL transition).
-  
+
     @return {Transition} this transition
     @public
   */
 
   /**
-  
+
     Fires an event on the current list of resolved/resolving
     handlers within this transition. Useful for firing events
     on route hierarchies that haven't fully been entered yet.
-  
+
     Note: This method is also aliased as `send`
-  
+
     @method trigger
     @param {Boolean} [ignoreFailure=false] a boolean specifying whether unhandled events throw an error
     @param {String} name the name of the event to fire
@@ -24270,7 +24270,7 @@ define("@ember/-internals/routing/lib/system/transition", [], function () {
     that will follow any redirects that occur and fulfill
     with the value fulfilled by any redirecting transitions
     that occur.
-  
+
     @method followRedirects
     @return {Promise} a promise that fulfills with the same
       value that the final redirecting transition fulfills with
@@ -24410,7 +24410,7 @@ define("@ember/-internals/routing/lib/utils", ["exports", "@ember/-internals/met
   }
   /*
     Controller-defined query parameters can come in three shapes:
-  
+
     Array
       queryParams: ['foo', 'bar']
     Array of simple objects where value is an alias
@@ -24436,7 +24436,7 @@ define("@ember/-internals/routing/lib/utils", ["exports", "@ember/-internals/met
           }
         }
       ]
-  
+
     This helper normalizes all three possible styles into the
     'Array of fully defined objects' style.
   */
@@ -24487,7 +24487,7 @@ define("@ember/-internals/routing/lib/utils", ["exports", "@ember/-internals/met
   }
   /*
     Check if a routeName resembles a url instead
-  
+
     @private
   */
 
@@ -24497,7 +24497,7 @@ define("@ember/-internals/routing/lib/utils", ["exports", "@ember/-internals/met
   }
   /*
     Returns an arguments array where the route name arg is prefixed based on the mount point
-  
+
     @private
   */
 
@@ -24795,23 +24795,23 @@ define("@ember/-internals/runtime/lib/compare", ["exports", "@ember/-internals/r
 
   /**
    Compares two javascript values and returns:
-  
+
     - -1 if the first is smaller than the second,
     - 0 if both are equal,
     - 1 if the first is greater than the second.
-  
+
     ```javascript
     import { compare } from '@ember/utils';
-  
+
     compare('hello', 'hello');  // 0
     compare('abc', 'dfg');      // -1
     compare(2, 1);              // 1
     ```
-  
+
    If the types of the two objects are different precedence occurs in the
    following order, with types earlier in the list considered `<` types
    later in the list:
-  
+
     - undefined
     - null
     - boolean
@@ -24823,14 +24823,14 @@ define("@ember/-internals/runtime/lib/compare", ["exports", "@ember/-internals/r
     - function
     - class
     - date
-  
+
     ```javascript
     import { compare } from '@ember/utils';
-  
+
     compare('hello', 50);       // 1
     compare(50, 'hello');       // -1
     ```
-  
+
    @method compare
    @for @ember/utils
    @static
@@ -24989,14 +24989,14 @@ define("@ember/-internals/runtime/lib/copy", ["exports", "@ember/debug", "@ember
   /**
     Creates a shallow copy of the passed object. A deep copy of the object is
     returned if the optional `deep` argument is `true`.
-  
+
     If the passed object implements the `Copyable` interface, then this
     function will delegate to the object's `copy()` method and return the
     result. See `Copyable` for further details.
-  
+
     For primitive values (which are immutable in JavaScript), the passed object
     is simply returned.
-  
+
     @method copy
     @deprecated Use 'ember-copy' addon instead
     @static
@@ -25248,42 +25248,42 @@ define("@ember/-internals/runtime/lib/is-equal", ["exports"], function (_exports
 
   /**
     Compares two objects, returning true if they are equal.
-  
+
     ```javascript
     import { isEqual } from '@ember/utils';
-  
+
     isEqual('hello', 'hello');                   // true
     isEqual(1, 2);                               // false
     ```
-  
+
     `isEqual` is a more specific comparison than a triple equal comparison.
     It will call the `isEqual` instance method on the objects being
     compared, allowing finer control over when objects should be considered
     equal to each other.
-  
+
     ```javascript
     import { isEqual } from '@ember/utils';
     import EmberObject from '@ember/object';
-  
+
     let Person = EmberObject.extend({
       isEqual(other) { return this.ssn == other.ssn; }
     });
-  
+
     let personA = Person.create({name: 'Muhammad Ali', ssn: '123-45-6789'});
     let personB = Person.create({name: 'Cassius Clay', ssn: '123-45-6789'});
-  
+
     isEqual(personA, personB); // true
     ```
-  
+
     Due to the expense of array comparisons, collections will never be equal to
     each other even if each of their items are equal to each other.
-  
+
     ```javascript
     import { isEqual } from '@ember/utils';
-  
+
     isEqual([4, 2], [4, 2]);                     // false
     ```
-  
+
     @method isEqual
     @for @ember/utils
     @static
@@ -25324,7 +25324,7 @@ define("@ember/-internals/runtime/lib/mixins/-proxy", ["exports", "@ember/-inter
   /**
     `Ember.ProxyMixin` forwards all properties not defined by the proxy itself
     to a proxied `content` object.  See ObjectProxy for more details.
-  
+
     @class ProxyMixin
     @namespace Ember
     @private
@@ -25426,7 +25426,7 @@ define("@ember/-internals/runtime/lib/mixins/action_handler", ["exports", "@embe
     (Internally the mixin is used by `Ember.CoreView`, `Ember.ControllerMixin`,
     and `Route` and available to the above classes through
     inheritance.)
-  
+
     @class ActionHandler
     @namespace Ember
     @private
@@ -25700,25 +25700,25 @@ define("@ember/-internals/runtime/lib/mixins/array", ["exports", "@ember/-intern
   }
   /**
     Returns true if the passed object is an array or Array-like.
-  
+
     Objects are considered Array-like if any of the following are true:
-  
+
       - the object is a native Array
       - the object has an objectAt property
       - the object is an Object, and has a length property
-  
+
     Unlike `typeOf` this method returns true even if the passed object is
     not formally an array but appears to be array-like (i.e. implements `Array`)
-  
+
     ```javascript
     import { isArray } from '@ember/array';
     import ArrayProxy from '@ember/array/proxy';
-  
+
     isArray();                                      // false
     isArray([]);                                    // true
     isArray(ArrayProxy.create({ content: [] }));    // true
     ```
-  
+
     @method isArray
     @static
     @for @ember/array
@@ -25787,30 +25787,30 @@ define("@ember/-internals/runtime/lib/mixins/array", ["exports", "@ember/-intern
     This mixin implements Observer-friendly Array-like behavior. It is not a
     concrete implementation, but it can be used up by other classes that want
     to appear like arrays.
-  
+
     For example, ArrayProxy is a concrete class that can be instantiated to
     implement array-like behavior. This class uses the Array Mixin by way of
     the MutableArray mixin, which allows observable changes to be made to the
     underlying array.
-  
+
     This mixin defines methods specifically for collections that provide
     index-ordered access to their contents. When you are designing code that
     needs to accept any kind of Array-like object, you should use these methods
     instead of Array primitives because these will properly notify observers of
     changes to the array.
-  
+
     Although these methods are efficient, they do add a layer of indirection to
     your application so it is a good idea to use them only when you need the
     flexibility of using both true JavaScript arrays and "virtual" arrays such
     as controllers and collections.
-  
+
     You can use the methods defined in this module to access and modify array
     contents in an observable-friendly way. You can also be notified whenever
     the membership of an array changes by using `.observes('myArray.[]')`.
-  
+
     To support `EmberArray` in your own class, you must override two
     primitives to use it: `length()` and `objectAt()`.
-  
+
     @class EmberArray
     @uses Enumerable
     @since Ember 0.9.0
@@ -26907,16 +26907,16 @@ define("@ember/-internals/runtime/lib/mixins/array", ["exports", "@ember/-intern
     can be applied only to a collection that keeps its items in an ordered set.
     It builds upon the Array mixin and adds methods to modify the array.
     One concrete implementations of this class include ArrayProxy.
-  
+
     It is important to use the methods in this class to modify arrays so that
     changes are observable. This allows the binding system in Ember to function
     correctly.
-  
-  
+
+
     Note that an Array can change even if it does not implement this mixin.
     For example, one might implement a SparseArray that cannot be directly
     modified, but if its underlying enumerable changes, it will change also.
-  
+
     @class MutableArray
     @uses EmberArray
     @uses MutableEnumerable
@@ -27253,20 +27253,20 @@ define("@ember/-internals/runtime/lib/mixins/array", ["exports", "@ember/-intern
     it is recommended that you use `A()` when creating addons for
     ember or when you can not guarantee that `EmberENV.EXTEND_PROTOTYPES`
     will be `true`.
-  
+
     Example
-  
+
     ```app/components/my-component.js
     import Component from '@ember/component';
     import { A } from '@ember/array';
-  
+
     export default Component.extend({
       tagName: 'ul',
       classNames: ['pagination'],
-  
+
       init() {
         this._super(...arguments);
-  
+
         if (!this.get('content')) {
           this.set('content', A());
           this.set('otherContent', A([1,2,3]));
@@ -27274,7 +27274,7 @@ define("@ember/-internals/runtime/lib/mixins/array", ["exports", "@ember/-intern
       }
     });
     ```
-  
+
     @method A
     @static
     @for @ember/array
@@ -27295,7 +27295,7 @@ define("@ember/-internals/runtime/lib/mixins/array", ["exports", "@ember/-intern
     have `EmberENV.EXTEND_PROTOTYPES` or `EmberENV.EXTEND_PROTOTYPES.Array` set to
     false, this will be applied automatically. Otherwise you can apply the mixin
     at anytime by calling `Ember.NativeArray.apply(Array.prototype)`.
-  
+
     @class Ember.NativeArray
     @uses MutableArray
     @uses Observable
@@ -27368,9 +27368,9 @@ define("@ember/-internals/runtime/lib/mixins/comparable", ["exports", "@ember/-i
   /**
     Implements some standard methods for comparing objects. Add this mixin to
     any class you create that can compare its instances.
-  
+
     You should implement the `compare()` method.
-  
+
     @class Comparable
     @namespace Ember
     @since Ember 0.9
@@ -27411,7 +27411,7 @@ define("@ember/-internals/runtime/lib/mixins/container_proxy", ["exports", "@emb
   /**
     ContainerProxyMixin is used to provide public access to specific
     container functionality.
-  
+
     @class ContainerProxyMixin
     @private
   */
@@ -27551,10 +27551,10 @@ define("@ember/-internals/runtime/lib/mixins/copyable", ["exports", "@ember/-int
     Implements some standard methods for copying an object. Add this mixin to
     any object you create that can create a copy of itself. This mixin is
     added automatically to the built-in array.
-  
+
     You should generally implement the `copy()` method to return a copy of the
     receiver.
-  
+
     @class Copyable
     @namespace Ember
     @since Ember 0.9
@@ -27593,7 +27593,7 @@ define("@ember/-internals/runtime/lib/mixins/enumerable", ["exports", "@ember/-i
     The methods in this mixin have been moved to [MutableArray](/ember/release/classes/MutableArray). This mixin has
     been intentionally preserved to avoid breaking Enumerable.detect checks
     until the community migrates away from them.
-  
+
     @class Enumerable
     @private
   */
@@ -27615,11 +27615,11 @@ define("@ember/-internals/runtime/lib/mixins/evented", ["exports", "@ember/-inte
 
   /**
     This mixin allows for Ember objects to subscribe to and emit events.
-  
+
     ```app/utils/person.js
     import EmberObject from '@ember/object';
     import Evented from '@ember/object/evented';
-  
+
     export default EmberObject.extend(Evented, {
       greet() {
         // ...
@@ -27627,21 +27627,21 @@ define("@ember/-internals/runtime/lib/mixins/evented", ["exports", "@ember/-inte
       }
     });
     ```
-  
+
     ```javascript
     var person = Person.create();
-  
+
     person.on('greet', function() {
       console.log('Our person has greeted');
     });
-  
+
     person.greet();
-  
+
     // outputs: 'Our person has greeted'
     ```
-  
+
     You can also chain multiple event subscriptions:
-  
+
     ```javascript
     person.on('greet', function() {
       console.log('Our person has greeted');
@@ -27649,7 +27649,7 @@ define("@ember/-internals/runtime/lib/mixins/evented", ["exports", "@ember/-inte
       console.log('Offer one-time special');
     }).off('event', this, forgetThis);
     ```
-  
+
     @class Evented
     @public
    */
@@ -27761,7 +27761,7 @@ define("@ember/-internals/runtime/lib/mixins/mutable_enumerable", ["exports", "@
     The methods in this mixin have been moved to MutableArray. This mixin has
     been intentionally preserved to avoid breaking MutableEnumerable.detect
     checks until the community migrates away from them.
-  
+
     @class MutableEnumerable
     @namespace Ember
     @uses Enumerable
@@ -27785,43 +27785,43 @@ define("@ember/-internals/runtime/lib/mixins/observable", ["exports", "@ember/-i
 
   /**
     ## Overview
-  
+
     This mixin provides properties and property observing functionality, core
     features of the Ember object model.
-  
+
     Properties and observers allow one object to observe changes to a
     property on another object. This is one of the fundamental ways that
     models, controllers and views communicate with each other in an Ember
     application.
-  
+
     Any object that has this mixin applied can be used in observer
     operations. That includes `EmberObject` and most objects you will
     interact with as you write your Ember application.
-  
+
     Note that you will not generally apply this mixin to classes yourself,
     but you will use the features provided by this module frequently, so it
     is important to understand how to use it.
-  
+
     ## Using `get()` and `set()`
-  
+
     Because of Ember's support for bindings and observers, you will always
     access properties using the get method, and set properties using the
     set method. This allows the observing objects to be notified and
     computed properties to be handled properly.
-  
+
     More documentation about `get` and `set` are below.
-  
+
     ## Observing Property Changes
-  
+
     You typically observe property changes simply by using the `observer`
     function in classes that you write.
-  
+
     For example:
-  
+
     ```javascript
     import { observer } from '@ember/object';
     import EmberObject from '@ember/object';
-  
+
     EmberObject.extend({
       valueObserver: observer('value', function(sender, key, value, rev) {
         // Executes whenever the "value" property changes
@@ -27829,27 +27829,27 @@ define("@ember/-internals/runtime/lib/mixins/observable", ["exports", "@ember/-i
       })
     });
     ```
-  
+
     Although this is the most common way to add an observer, this capability
     is actually built into the `EmberObject` class on top of two methods
     defined in this mixin: `addObserver` and `removeObserver`. You can use
     these two methods to add and remove observers yourself if you need to
     do so at runtime.
-  
+
     To add an observer for a property, call:
-  
+
     ```javascript
     object.addObserver('propertyKey', targetObject, targetAction)
     ```
-  
+
     This will call the `targetAction` method on the `targetObject` whenever
     the value of the `propertyKey` changes.
-  
+
     Note that if `propertyKey` is a computed property, the observer will be
     called when any of the property dependencies are changed, even if the
     resulting value of the computed property is unchanged. This is necessary
     because computed properties are not computed until `get` is called.
-  
+
     @class Observable
     @public
   */
@@ -28238,64 +28238,64 @@ define("@ember/-internals/runtime/lib/mixins/promise_proxy", ["exports", "@ember
   }
   /**
     A low level mixin making ObjectProxy promise-aware.
-  
+
     ```javascript
     import { resolve } from 'rsvp';
     import $ from 'jquery';
     import ObjectProxy from '@ember/object/proxy';
     import PromiseProxyMixin from '@ember/object/promise-proxy-mixin';
-  
+
     let ObjectPromiseProxy = ObjectProxy.extend(PromiseProxyMixin);
-  
+
     let proxy = ObjectPromiseProxy.create({
       promise: resolve($.getJSON('/some/remote/data.json'))
     });
-  
+
     proxy.then(function(json){
        // the json
     }, function(reason) {
        // the reason why you have no json
     });
     ```
-  
+
     the proxy has bindable attributes which
     track the promises life cycle
-  
+
     ```javascript
     proxy.get('isPending')   //=> true
     proxy.get('isSettled')  //=> false
     proxy.get('isRejected')  //=> false
     proxy.get('isFulfilled') //=> false
     ```
-  
+
     When the $.getJSON completes, and the promise is fulfilled
     with json, the life cycle attributes will update accordingly.
     Note that $.getJSON doesn't return an ECMA specified promise,
     it is useful to wrap this with an `RSVP.resolve` so that it behaves
     as a spec compliant promise.
-  
+
     ```javascript
     proxy.get('isPending')   //=> false
     proxy.get('isSettled')   //=> true
     proxy.get('isRejected')  //=> false
     proxy.get('isFulfilled') //=> true
     ```
-  
+
     As the proxy is an ObjectProxy, and the json now its content,
     all the json properties will be available directly from the proxy.
-  
+
     ```javascript
     // Assuming the following json:
     {
       firstName: 'Stefan',
       lastName: 'Penner'
     }
-  
+
     // both properties will accessible on the proxy
     proxy.get('firstName') //=> 'Stefan'
     proxy.get('lastName')  //=> 'Penner'
     ```
-  
+
     @class PromiseProxyMixin
     @public
   */
@@ -28430,7 +28430,7 @@ define("@ember/-internals/runtime/lib/mixins/registry_proxy", ["exports", "@embe
   /**
     RegistryProxyMixin is used to provide public access to specific
     registry functionality.
-  
+
     @class RegistryProxyMixin
     @private
   */
@@ -28658,7 +28658,7 @@ define("@ember/-internals/runtime/lib/mixins/target_action_support", ["exports",
   `{{action}}` helper. In normal Ember usage, the `{{action}}` helper is
   usually the best choice. This mixin is most often useful when you are
   doing more complex event handling in Components.
-  
+
   @class TargetActionSupport
   @namespace Ember
   @extends Mixin
@@ -28812,29 +28812,29 @@ define("@ember/-internals/runtime/lib/system/array_proxy", ["exports", "@ember/-
     `MutableArray,` forwarding all requests. This makes it very useful for
     a number of binding use cases or other cases where being able to swap
     out the underlying array is useful.
-  
+
     A simple example of usage:
-  
+
     ```javascript
     import { A } from '@ember/array';
     import ArrayProxy from '@ember/array/proxy';
-  
+
     let pets = ['dog', 'cat', 'fish'];
     let ap = ArrayProxy.create({ content: A(pets) });
-  
+
     ap.get('firstObject');                        // 'dog'
     ap.set('content', ['amoeba', 'paramecium']);
     ap.get('firstObject');                        // 'amoeba'
     ```
-  
+
     This class can also be useful as a layer to transform the contents of
     an array, as they are accessed. This can be done by overriding
     `objectAtContent`:
-  
+
     ```javascript
     import { A } from '@ember/array';
     import ArrayProxy from '@ember/array/proxy';
-  
+
     let pets = ['dog', 'cat', 'fish'];
     let ap = ArrayProxy.create({
         content: A(pets),
@@ -28842,18 +28842,18 @@ define("@ember/-internals/runtime/lib/system/array_proxy", ["exports", "@ember/-
             return this.get('content').objectAt(idx).toUpperCase();
         }
     });
-  
+
     ap.get('firstObject'); // . 'DOG'
     ```
-  
+
     When overriding this class, it is important to place the call to
     `_super` *after* setting `content` so the internal observers have
     a chance to fire properly:
-  
+
     ```javascript
     import { A } from '@ember/array';
     import ArrayProxy from '@ember/array/proxy';
-  
+
     export default ArrayProxy.extend({
       init() {
         this.set('content', A(['dog', 'cat', 'fish']));
@@ -28861,7 +28861,7 @@ define("@ember/-internals/runtime/lib/system/array_proxy", ["exports", "@ember/-
       }
     });
     ```
-  
+
     @class ArrayProxy
     @extends EmberObject
     @uses MutableArray
@@ -29232,26 +29232,26 @@ define("@ember/-internals/runtime/lib/system/core_object", ["exports", "@ember/-
     class system based on Ember's Mixin system, and provides the basis for the
     Ember Object Model. `CoreObject` should generally not be used directly,
     instead you should use `EmberObject`.
-  
+
     ## Usage
-  
+
     You can define a class by extending from `CoreObject` using the `extend`
     method:
-  
+
     ```js
     const Person = CoreObject.extend({
       name: 'Tomster',
     });
     ```
-  
+
     For detailed usage, see the [Object Model](https://guides.emberjs.com/release/object-model/)
     section of the guides.
-  
+
     ## Usage with Native Classes
-  
+
     Native JavaScript `class` syntax can be used to extend from any `CoreObject`
     based class:
-  
+
     ```js
     class Person extends CoreObject {
       init() {
@@ -29260,9 +29260,9 @@ define("@ember/-internals/runtime/lib/system/core_object", ["exports", "@ember/-
       }
     }
     ```
-  
+
     Some notes about `class` usage:
-  
+
     * `new` syntax is not currently supported with classes that extend from
       `EmberObject` or `CoreObject`. You must continue to use the `create` method
       when making new instances of classes, even if they are defined using native
@@ -29284,7 +29284,7 @@ define("@ember/-internals/runtime/lib/system/core_object", ["exports", "@ember/-
       time.
     * Using native classes, and switching back to the old Ember Object model is
       fully supported.
-  
+
     @class CoreObject
     @public
   */
@@ -30111,15 +30111,15 @@ define("@ember/-internals/runtime/lib/system/namespace", ["exports", "@ember/-in
     A Namespace is an object usually used to contain other objects or methods
     such as an application or framework. Create a namespace anytime you want
     to define one of these new containers.
-  
+
     # Example Usage
-  
+
     ```javascript
     MyFramework = Ember.Namespace.create({
       VERSION: '1.0.0'
     });
     ```
-  
+
     @class Namespace
     @namespace Ember
     @extends EmberObject
@@ -30182,7 +30182,7 @@ define("@ember/-internals/runtime/lib/system/object", ["exports", "@ember/-inter
     `EmberObject` is the main base class for all Ember objects. It is a subclass
     of `CoreObject` with the `Observable` mixin applied. For details,
     see the documentation for each of these.
-  
+
     @class EmberObject
     @extends CoreObject
     @uses Observable
@@ -30269,35 +30269,35 @@ define("@ember/-internals/runtime/lib/system/object_proxy", ["exports", "@ember/
   /**
     `ObjectProxy` forwards all properties not defined by the proxy itself
     to a proxied `content` object.
-  
+
     ```javascript
     import EmberObject from '@ember/object';
     import ObjectProxy from '@ember/object/proxy';
-  
+
     object = EmberObject.create({
       name: 'Foo'
     });
-  
+
     proxy = ObjectProxy.create({
       content: object
     });
-  
+
     // Access and change existing properties
     proxy.get('name')          // 'Foo'
     proxy.set('name', 'Bar');
     object.get('name')         // 'Bar'
-  
+
     // Create new 'description' property on `object`
     proxy.set('description', 'Foo is a whizboo baz');
     object.get('description')  // 'Foo is a whizboo baz'
     ```
-  
+
     While `content` is unset, setting a property to be delegated will throw an
     Error.
-  
+
     ```javascript
     import ObjectProxy from '@ember/object/proxy';
-  
+
     proxy = ObjectProxy.create({
       content: null,
       flag: null
@@ -30307,15 +30307,15 @@ define("@ember/-internals/runtime/lib/system/object_proxy", ["exports", "@ember/
     proxy.get('foo');          // undefined
     proxy.set('foo', 'data');  // throws Error
     ```
-  
+
     Delegated properties can be bound to and will change when content is updated.
-  
+
     Computed properties on the proxy itself can depend on delegated properties.
-  
+
     ```javascript
     import { computed } from '@ember/object';
     import ObjectProxy from '@ember/object/proxy';
-  
+
     ProxyWithComputedProperty = ObjectProxy.extend({
       fullName: computed('firstName', 'lastName', function() {
         var firstName = this.get('firstName'),
@@ -30326,17 +30326,17 @@ define("@ember/-internals/runtime/lib/system/object_proxy", ["exports", "@ember/
         return firstName || lastName;
       })
     });
-  
+
     proxy = ProxyWithComputedProperty.create();
-  
+
     proxy.get('fullName');  // undefined
     proxy.set('content', {
       firstName: 'Tom', lastName: 'Dale'
     }); // triggers property change for fullName on proxy
-  
+
     proxy.get('fullName');  // 'Tom Dale'
     ```
-  
+
     @class ObjectProxy
     @extends EmberObject
     @uses Ember.ProxyMixin
@@ -30378,11 +30378,11 @@ define("@ember/-internals/runtime/lib/type-of", ["exports", "@ember/-internals/r
 
   /**
     Returns a consistent type for the passed object.
-  
+
     Use this instead of the built-in `typeof` to get the type of an item.
     It will return the same result across all browsers and includes a bit
     more detail. Here is what will be returned:
-  
+
         | Return Value  | Meaning                                              |
         |---------------|------------------------------------------------------|
         | 'string'      | String primitive or String object.                   |
@@ -30399,14 +30399,14 @@ define("@ember/-internals/runtime/lib/type-of", ["exports", "@ember/-internals/r
         | 'instance'    | An Ember object instance                             |
         | 'error'       | An instance of the Error object                      |
         | 'object'      | A JavaScript object not inheriting from EmberObject  |
-  
+
     Examples:
-  
+
     ```javascript
     import { A } from '@ember/array';
     import { typeOf } from '@ember/utils';
     import EmberObject from '@ember/object';
-  
+
     typeOf();                       // 'undefined'
     typeOf(null);                   // 'null'
     typeOf(undefined);              // 'undefined'
@@ -30425,11 +30425,11 @@ define("@ember/-internals/runtime/lib/type-of", ["exports", "@ember/-internals/r
     typeOf(EmberObject.extend());   // 'class'
     typeOf(EmberObject.create());   // 'instance'
     typeOf(new Error('teamocil'));  // 'error'
-  
+
     // 'normal' JavaScript object
     typeOf({ a: 'b' });             // 'object'
     ```
-  
+
     @method typeOf
     @for @ember/utils
     @param {Object} item the item to check
@@ -30500,40 +30500,40 @@ define("@ember/-internals/utils/index", ["exports", "@ember/polyfills", "@ember/
 
   /**
     Strongly hint runtimes to intern the provided string.
-  
+
     When do I need to use this function?
-  
+
     For the most part, never. Pre-mature optimization is bad, and often the
     runtime does exactly what you need it to, and more often the trade-off isn't
     worth it.
-  
+
     Why?
-  
+
     Runtimes store strings in at least 2 different representations:
     Ropes and Symbols (interned strings). The Rope provides a memory efficient
     data-structure for strings created from concatenation or some other string
     manipulation like splitting.
-  
+
     Unfortunately checking equality of different ropes can be quite costly as
     runtimes must resort to clever string comparison algorithms. These
     algorithms typically cost in proportion to the length of the string.
     Luckily, this is where the Symbols (interned strings) shine. As Symbols are
     unique by their string content, equality checks can be done by pointer
     comparison.
-  
+
     How do I know if my string is a rope or symbol?
-  
+
     Typically (warning general sweeping statement, but truthy in runtimes at
     present) static strings created as part of the JS source are interned.
     Strings often used for comparisons can be interned at runtime if some
     criteria are met.  One of these criteria can be the size of the entire rope.
     For example, in chrome 38 a rope longer then 12 characters will not
     intern, nor will segments of that rope.
-  
+
     Some numbers: http://jsperf.com/eval-vs-keys/8
-  
+
     Known Trick™
-  
+
     @private
     @return {String} interned version of the provided string
   */
@@ -30551,12 +30551,12 @@ define("@ember/-internals/utils/index", ["exports", "@ember/polyfills", "@ember/
   }
   /**
     Returns whether Type(value) is Object.
-  
+
     Useful for checking whether a value is a valid WeakMap key.
-  
+
     Refs: https://tc39.github.io/ecma262/#sec-typeof-operator-runtime-semantics-evaluation
           https://tc39.github.io/ecma262/#sec-weakmap.prototype.set
-  
+
     @private
     @function isObject
   */
@@ -30572,7 +30572,7 @@ define("@ember/-internals/utils/index", ["exports", "@ember/polyfills", "@ember/
   /**
    Previously we used `Ember.$.uuid`, however `$.uuid` has been removed from
    jQuery master. We'll just bootstrap our own uuid now.
-  
+
    @private
    @return {Number} the uuid
    */
@@ -30583,7 +30583,7 @@ define("@ember/-internals/utils/index", ["exports", "@ember/polyfills", "@ember/
    Generates a universally unique identifier. This method
    is used internally by Ember for assisting with
    the generation of GUID's and other unique identifiers.
-  
+
    @public
    @return {Number} [description]
    */
@@ -30609,10 +30609,10 @@ define("@ember/-internals/utils/index", ["exports", "@ember/polyfills", "@ember/
     A unique key used to assign guids and other private metadata to objects.
     If you inspect an object in your browser debugger you will often see these.
     They can be safely ignored.
-  
+
     On browsers that support it, these properties are added with enumeration
     disabled so they won't show up when you iterate over your properties.
-  
+
     @private
     @property GUID_KEY
     @for Ember
@@ -30625,7 +30625,7 @@ define("@ember/-internals/utils/index", ["exports", "@ember/polyfills", "@ember/
     Generates a new guid, optionally saving the guid to the object that you
     pass in. You will rarely need to use this method. Instead you should
     call `guidFor(obj)`, which return an existing guid if available.
-  
+
     @private
     @method generateGuid
     @static
@@ -30633,7 +30633,7 @@ define("@ember/-internals/utils/index", ["exports", "@ember/polyfills", "@ember/
     @param {Object} [obj] Object the guid will be used for. If passed in, the guid will
       be saved on the object and reused whenever you pass the same object
       again.
-  
+
       If no object is passed, just generate a new guid.
     @param {String} [prefix] Prefix to place in front of the guid. Useful when you want to
       separate the guid into separate namespaces.
@@ -30655,9 +30655,9 @@ define("@ember/-internals/utils/index", ["exports", "@ember/polyfills", "@ember/
     Returns a unique id for the object. If the object does not yet have a guid,
     one will be assigned to it. You can call this on any object,
     `EmberObject`-based or not.
-  
+
     You can also use this method on DOM Element objects.
-  
+
     @public
     @static
     @method guidFor
@@ -30863,7 +30863,7 @@ define("@ember/-internals/utils/index", ["exports", "@ember/polyfills", "@ember/
     Wraps the passed function so that `this._super` will point to the superFunc
     when the function is invoked. This is the primitive we use to implement
     calls to super.
-  
+
     @private
     @method wrap
     @for Ember
@@ -30925,10 +30925,10 @@ define("@ember/-internals/utils/index", ["exports", "@ember/polyfills", "@ember/
   /**
     Convenience method to inspect an object. This method will attempt to
     convert the object into a useful string description.
-  
+
     It is a pretty simple implementation. If you want something more robust,
     use something like JSDump: https://github.com/NV/jsDump
-  
+
     @method inspect
     @static
     @param {Object} obj The object you want to inspect.
@@ -31059,15 +31059,15 @@ define("@ember/-internals/utils/index", ["exports", "@ember/polyfills", "@ember/
   }
   /**
     Checks to see if the `methodName` exists on the `obj`.
-  
+
     ```javascript
     let foo = { bar: function() { return 'bar'; }, baz: null };
-  
+
     Ember.canInvoke(foo, 'bar'); // true
     Ember.canInvoke(foo, 'baz'); // false
     Ember.canInvoke(foo, 'bat'); // false
     ```
-  
+
     @method canInvoke
     @for Ember
     @param {Object} obj The object to check for the method
@@ -31087,17 +31087,17 @@ define("@ember/-internals/utils/index", ["exports", "@ember/polyfills", "@ember/
   /**
     Checks to see if the `methodName` exists on the `obj`,
     and if it does, invokes it with the arguments passed.
-  
+
     ```javascript
     import { tryInvoke } from '@ember/utils';
-  
+
     let d = new Date('03/15/2013');
-  
+
     tryInvoke(d, 'getTime');              // 1363320000000
     tryInvoke(d, 'setFullYear', [2014]);  // 1394856000000
     tryInvoke(d, 'noSuchMethod', [2014]); // undefined
     ```
-  
+
     @method tryInvoke
     @for @ember/utils
     @static
@@ -31375,10 +31375,10 @@ define("@ember/-internals/utils/index", ["exports", "@ember/polyfills", "@ember/
   /*
    This package will be eagerly parsed and should have no dependencies on external
    packages.
-  
+
    It is intended to be used to share utility methods that will be needed
    by every Ember application (and is **not** a dumping ground of useful utilities).
-  
+
    Utility methods that are needed in < 80% of cases should be placed
    elsewhere (so they can be lazily evaluated / parsed).
   */
@@ -31915,22 +31915,22 @@ define("@ember/-internals/views/lib/mixins/text_support", ["exports", "@ember/-i
     value of the field passed in as the only argument unless the value of
     the field is empty. In that case, the instance of the field itself is passed
     in as the only argument.
-  
+
     Let's use the pressing of the escape key as an example. If you wanted to
     invoke a controller action when a user presses the escape key while on your
     field, you would use the `escape-press` attribute on your field like so:
-  
+
     ```handlebars
       {{! application.hbs}}
-  
+
       {{input escape-press='alertUser'}}
     ```
-  
+
     ```javascript
         import Application from '@ember/application';
         import Controller from '@ember/controller';
         App = Application.create();
-  
+
         App.ApplicationController = Controller.extend({
           actions: {
             alertUser: function ( currentValue ) {
@@ -31939,10 +31939,10 @@ define("@ember/-internals/views/lib/mixins/text_support", ["exports", "@ember/-i
           }
         });
     ```
-  
+
     The following chart is a visual representation of what takes place when the
     escape key is pressed in this scenario:
-  
+
     ```
     The Template
     +---------------------------+
@@ -31969,15 +31969,15 @@ define("@ember/-internals/views/lib/mixins/text_support", ["exports", "@ember/-i
     |                                           |
     +-------------------------------------------+
     ```
-  
+
     Here are the events that we currently support along with the name of the
     attribute you would need to use on your field. To reiterate, you would use the
     attribute name like so:
-  
+
     ```handlebars
       {{input attribute-name='controllerAction'}}
     ```
-  
+
     ```
     +--------------------+----------------+
     |                    |                |
@@ -32000,7 +32000,7 @@ define("@ember/-internals/views/lib/mixins/text_support", ["exports", "@ember/-i
     | keydown            | key-down       |
     +--------------------+----------------+
     ```
-  
+
     @class TextSupport
     @namespace Ember
     @uses Ember.TargetActionSupport
@@ -32653,7 +32653,7 @@ define("@ember/-internals/views/lib/system/action_manager", ["exports"], functio
   function ActionManager() {}
   /**
     Global action id hash.
-  
+
     @private
     @property registeredActions
     @type Object
@@ -32684,7 +32684,7 @@ define("@ember/-internals/views/lib/system/event_dispatcher", ["exports", "@embe
     corresponding `Ember.Views.` For example, when you click on a view,
     `Ember.EventDispatcher` ensures that that view's `mouseDown` method gets
     called.
-  
+
     @class EventDispatcher
     @namespace Ember
     @private
@@ -33343,10 +33343,10 @@ define("@ember/-internals/views/lib/system/utils", ["exports", "@ember/-internal
   /**
     `getViewClientRects` provides information about the position of the border
     box edges of a view relative to the viewport.
-  
+
     It is only intended to be used by development tools like the Ember Inspector
     and may not work on older browsers.
-  
+
     @private
     @method getViewClientRects
     @param {Ember.View} view
@@ -33360,10 +33360,10 @@ define("@ember/-internals/views/lib/system/utils", ["exports", "@ember/-internal
   /**
     `getViewBoundingClientRect` provides information about the position of the
     bounding border box edges of a view relative to the viewport.
-  
+
     It is only intended to be used by development tools like the Ember Inspector
     and may not work on older browsers.
-  
+
     @private
     @method getViewBoundingClientRect
     @param {Ember.View} view
@@ -33376,7 +33376,7 @@ define("@ember/-internals/views/lib/system/utils", ["exports", "@ember/-internal
   }
   /**
     Determines if the element matches the specified selector.
-  
+
     @private
     @method matches
     @param {DOMElement} el
@@ -33420,10 +33420,10 @@ define("@ember/-internals/views/lib/views/core_view", ["exports", "@ember/-inter
     `Ember.CoreView` is an abstract class that exists to give view-like behavior
     to both Ember's main view class `Component` and other classes that don't need
     the full functionality of `Component`.
-  
+
     Unless you have specific needs for `CoreView`, you will use `Component`
     in your applications.
-  
+
     @class CoreView
     @namespace Ember
     @extends EmberObject
@@ -33504,7 +33504,7 @@ define("@ember/-internals/views/lib/views/states", ["exports", "@ember/-internal
   /*
     Describe how the specified actions should behave in the various
     states that a view can exist in. Possible states:
-  
+
     * preRender: when a view is first instantiated, and after its
       element was destroyed, it is in the preRender state
     * hasElement: the DOM representation of the view is created,
@@ -33684,49 +33684,49 @@ define("@ember/application/globals-resolver", ["exports", "@ember/-internals/uti
     The DefaultResolver defines the default lookup rules to resolve
     container lookups before consulting the container for registered
     items:
-  
+
     * templates are looked up on `Ember.TEMPLATES`
     * other names are looked up on the application after converting
       the name. For example, `controller:post` looks up
       `App.PostController` by default.
     * there are some nuances (see examples below)
-  
+
     ### How Resolving Works
-  
+
     The container calls this object's `resolve` method with the
     `fullName` argument.
-  
+
     It first parses the fullName into an object using `parseName`.
-  
+
     Then it checks for the presence of a type-specific instance
     method of the form `resolve[Type]` and calls it if it exists.
     For example if it was resolving 'template:post', it would call
     the `resolveTemplate` method.
-  
+
     Its last resort is to call the `resolveOther` method.
-  
+
     The methods of this object are designed to be easy to override
     in a subclass. For example, you could enhance how a template
     is resolved like so:
-  
+
     ```app/app.js
     import Application from '@ember/application';
     import GlobalsResolver from '@ember/application/globals-resolver';
-  
+
     App = Application.create({
       Resolver: GlobalsResolver.extend({
         resolveTemplate(parsedName) {
           let resolvedTemplate = this._super(parsedName);
           if (resolvedTemplate) { return resolvedTemplate; }
-  
+
           return Ember.TEMPLATES['not_found'];
         }
       })
     });
     ```
-  
+
     Some examples of how names are resolved:
-  
+
     ```text
     'template:post'           //=> Ember.TEMPLATES['post']
     'template:posts/byline'   //=> Ember.TEMPLATES['posts/byline']
@@ -33743,7 +33743,7 @@ define("@ember/application/globals-resolver", ["exports", "@ember/-internals/uti
     'foo:post'                //=> App.PostFoo
     'model:post'              //=> App.Post
     ```
-  
+
     @class GlobalsResolver
     @extends EmberObject
     @public
@@ -34160,23 +34160,23 @@ define("@ember/application/instance", ["exports", "@ember/polyfills", "@ember/-i
   /**
     The `ApplicationInstance` encapsulates all of the stateful aspects of a
     running `Application`.
-  
+
     At a high-level, we break application boot into two distinct phases:
-  
+
     * Definition time, where all of the classes, templates, and other
       dependencies are loaded (typically in the browser).
     * Run time, where we begin executing the application once everything
       has loaded.
-  
+
     Definition time can be expensive and only needs to happen once since it is
     an idempotent operation. For example, between test runs and FastBoot
     requests, the application stays the same. It is only the state that we want
     to reset.
-  
+
     That state is what the `ApplicationInstance` manages: it is responsible for
     creating the container that contains all application state, and disposing of
     it once the particular test run or FastBoot request has finished.
-  
+
     @public
     @class ApplicationInstance
     @extends EngineInstance
@@ -34304,15 +34304,15 @@ define("@ember/application/instance", ["exports", "@ember/polyfills", "@ember/-i
       location before routing begins.
        Because setup should only occur once, multiple calls to `setupRouter`
       beyond the first call have no effect.
-      
+
       This is commonly used in order to confirm things that rely on the router
       are functioning properly from tests that are primarily rendering related.
-      
+
       For example, from within [ember-qunit](https://github.com/emberjs/ember-qunit)'s
       `setupRenderingTest` calling `this.owner.setupRouter()` would allow that
       rendering test to confirm that any `<LinkTo></LinkTo>`'s that are rendered
       have the correct URL.
-      
+
       @public
     */
     setupRouter() {
@@ -34440,21 +34440,21 @@ define("@ember/application/instance", ["exports", "@ember/polyfills", "@ember/-i
   /**
     A list of boot-time configuration options for customizing the behavior of
     an `ApplicationInstance`.
-  
+
     This is an interface class that exists purely to document the available
     options; you do not need to construct it manually. Simply pass a regular
     JavaScript object containing the desired options into methods that require
     one of these options object:
-  
+
     ```javascript
     MyApp.visit("/", { location: "none", rootElement: "#container" });
     ```
-  
+
     Not all combinations of the supported options are valid. See the documentation
     on `Application#visit` for the supported configurations.
-  
+
     Internal, experimental or otherwise unstable flags are marked as private.
-  
+
     @class BootOptions
     @namespace ApplicationInstance
     @public
@@ -34648,13 +34648,13 @@ define("@ember/application/lib/application", ["exports", "@ember/-internals/util
     An instance of `Application` is the starting point for every Ember
     application. It instantiates, initializes and coordinates the
     objects that make up your app.
-  
+
     Each Ember app has one and only one `Application` object. Although
     Ember CLI creates this object implicitly, the `Application` class
     is defined in the `app/app.js`. You can define a `ready` method on the
     `Application` class, which will be run by Ember when the application is
     initialized.
-  
+
     ```app/app.js
     const App = Application.extend({
       ready() {
@@ -34662,41 +34662,41 @@ define("@ember/application/lib/application", ["exports", "@ember/-internals/util
       }
     })
     ```
-  
+
     Because `Application` ultimately inherits from `Ember.Namespace`, any classes
     you create will have useful string representations when calling `toString()`.
     See the `Ember.Namespace` documentation for more information.
-  
+
     While you can think of your `Application` as a container that holds the
     other classes in your application, there are several other responsibilities
     going on under-the-hood that you may want to understand. It is also important
     to understand that an `Application` is different from an `ApplicationInstance`.
     Refer to the Guides to understand the difference between these.
-  
+
     ### Event Delegation
-  
+
     Ember uses a technique called _event delegation_. This allows the framework
     to set up a global, shared event listener instead of requiring each view to
     do it manually. For example, instead of each view registering its own
     `mousedown` listener on its associated element, Ember sets up a `mousedown`
     listener on the `body`.
-  
+
     If a `mousedown` event occurs, Ember will look at the target of the event and
     start walking up the DOM node tree, finding corresponding views and invoking
     their `mouseDown` method as it goes.
-  
+
     `Application` has a number of default events that it listens for, as
     well as a mapping from lowercase events to camel-cased view method names. For
     example, the `keypress` event causes the `keyPress` method on the view to be
     called, the `dblclick` event causes `doubleClick` to be called, and so on.
-  
+
     If there is a bubbling browser event that Ember does not listen for by
     default, you can specify custom events and their corresponding view method
     names by setting the application's `customEvents` property:
-  
+
     ```app/app.js
     import Application from '@ember/application';
-  
+
     let App = Application.extend({
       customEvents: {
         // add support for the paste event
@@ -34704,14 +34704,14 @@ define("@ember/application/lib/application", ["exports", "@ember/-internals/util
       }
     });
     ```
-  
+
     To prevent Ember from setting up a listener for a default event,
     specify the event name with a `null` value in the `customEvents`
     property:
-  
+
     ```app/app.js
     import Application from '@ember/application';
-  
+
     let App = Application.extend({
       customEvents: {
         // prevent listeners for mouseenter/mouseleave events
@@ -34720,78 +34720,78 @@ define("@ember/application/lib/application", ["exports", "@ember/-internals/util
       }
     });
     ```
-  
+
     By default, the application sets up these event listeners on the document
     body. However, in cases where you are embedding an Ember application inside
     an existing page, you may want it to set up the listeners on an element
     inside the body.
-  
+
     For example, if only events inside a DOM element with the ID of `ember-app`
     should be delegated, set your application's `rootElement` property:
-  
+
     ```app/app.js
     import Application from '@ember/application';
-  
+
     let App = Application.extend({
       rootElement: '#ember-app'
     });
     ```
-  
+
     The `rootElement` can be either a DOM element or a jQuery-compatible selector
     string. Note that *views appended to the DOM outside the root element will
     not receive events.* If you specify a custom root element, make sure you only
     append views inside it!
-  
+
     To learn more about the events Ember components use, see
-  
+
     [components/handling-events](https://guides.emberjs.com/release/components/handling-events/#toc_event-names).
-  
+
     ### Initializers
-  
+
     To add behavior to the Application's boot process, you can define initializers in
     the `app/initializers` directory, or with `ember generate initializer` using Ember CLI.
     These files should export a named `initialize` function which will receive the created `application`
     object as its first argument.
-  
+
     ```javascript
     export function initialize(application) {
       // application.inject('route', 'foo', 'service:foo');
     }
     ```
-  
+
     Application initializers can be used for a variety of reasons including:
-  
+
     - setting up external libraries
     - injecting dependencies
     - setting up event listeners in embedded apps
     - deferring the boot process using the `deferReadiness` and `advanceReadiness` APIs.
-  
+
     ### Routing
-  
+
     In addition to creating your application's router, `Application` is
     also responsible for telling the router when to start routing. Transitions
     between routes can be logged with the `LOG_TRANSITIONS` flag, and more
     detailed intra-transition logging can be logged with
     the `LOG_TRANSITIONS_INTERNAL` flag:
-  
+
     ```javascript
     import Application from '@ember/application';
-  
+
     let App = Application.create({
       LOG_TRANSITIONS: true, // basic logging of successful transitions
       LOG_TRANSITIONS_INTERNAL: true // detailed logging of all routing steps
     });
     ```
-  
+
     By default, the router will begin trying to translate the current URL into
     application state once the browser emits the `DOMContentReady` event. If you
     need to defer routing, you can call the application's `deferReadiness()`
     method. Once routing can begin, call the `advanceReadiness()` method.
-  
+
     If there is any setup required before routing begins, you can implement a
     `ready()` method on your app that will be invoked immediately before routing
     begins.
-  
+
     @class Application
     @extends Engine
     @uses RegistryProxyMixin
@@ -35615,18 +35615,18 @@ define("@ember/application/lib/lazy_load", ["exports", "@ember/-internals/enviro
   /**
     Detects when a specific package of Ember (e.g. 'Application')
     has fully loaded and is available for extension.
-  
+
     The provided `callback` will be called with the `name` passed
     resolved from a string into the object:
-  
+
     ``` javascript
     import { onLoad } from '@ember/application';
-  
+
     onLoad('Ember.Application' function(hbars) {
       hbars.registerHelper(...);
     });
     ```
-  
+
     @method onLoad
     @static
     @for @ember/application
@@ -35649,7 +35649,7 @@ define("@ember/application/lib/lazy_load", ["exports", "@ember/-internals/enviro
   /**
     Called when an Ember.js package (e.g Application) has finished
     loading. Triggers any callbacks registered for this event.
-  
+
     @method runLoadHooks
     @static
     @for @ember/application
@@ -35688,10 +35688,10 @@ define("@ember/canary-features/index", ["exports", "@ember/-internals/environmen
   /**
     Set `EmberENV.FEATURES` in your application's `config/environment.js` file
     to enable canary features in your application.
-  
+
     See the [feature flag guide](https://guides.emberjs.com/release/configuring-ember/feature-flags/)
     for more details.
-  
+
     @module @ember/canary-features
     @public
   */
@@ -35707,7 +35707,7 @@ define("@ember/canary-features/index", ["exports", "@ember/-internals/environmen
   /**
     The hash of enabled Canary features. Add to this, any canary features
     before creating your application.
-  
+
     @class FEATURES
     @static
     @since 1.1.0
@@ -35719,12 +35719,12 @@ define("@ember/canary-features/index", ["exports", "@ember/-internals/environmen
   /**
     Determine whether the specified `feature` is enabled. Used by Ember's
     build tools to exclude experimental features from beta/stable builds.
-  
+
     You can define the following configuration options:
-  
+
     * `EmberENV.ENABLE_OPTIONAL_FEATURES` - enable any features that have not been explicitly
       enabled/disabled.
-  
+
     @method isEnabled
     @param {String} feature The feature to check
     @return {Boolean}
@@ -35813,20 +35813,20 @@ define("@ember/component/template-only", ["exports"], function (_exports) {
     is able to perform a number of optimizations. Templates that are associated with `templateOnly()` will be rendered _as is_
     without adding a wrapping `<div>` (or any of the other element customization behaviors of [@ember/component](/ember/release/classes/Component)).
     Specifically, this means that the template will be rendered as "outer HTML".
-  
+
     In general, this method will be used by build time tooling and would not be directly written in an application. However,
     at times it may be useful to use directly to leverage the "outer HTML" semantics mentioned above. For example, if an addon would like
     to use these semantics for its templates but cannot be certain it will only be consumed by applications that have enabled the
     `template-only-glimmer-components` optional feature.
-  
+
     @example
-  
+
     ```js
     import templateOnly from '@ember/component/template-only';
-  
+
     export default templateOnly();
     ```
-  
+
     @public
     @method templateOnly
     @param {String} moduleName the module name that the template only component represents, this will be used for debugging purposes
@@ -35869,35 +35869,35 @@ define("@ember/controller/index", ["exports", "@ember/-internals/runtime", "@emb
   /**
     Creates a property that lazily looks up another controller in the container.
     Can only be used when defining another controller.
-  
+
     Example:
-  
+
     ```app/controllers/post.js
     import Controller, {
       inject as controller
     } from '@ember/controller';
-  
+
     export default class PostController extends Controller {
       @controller posts;
     }
     ```
-  
+
     Classic Class Example:
-  
+
     ```app/controllers/post.js
     import Controller, {
       inject as controller
     } from '@ember/controller';
-  
+
     export default Controller.extend({
       posts: controller()
     });
     ```
-  
+
     This example will create a `posts` property on the `post` controller that
     looks up the `posts` controller in the container, making it easy to reference
     other controllers.
-  
+
     @method inject
     @static
     @for @ember/controller
@@ -36314,10 +36314,10 @@ define("@ember/debug/lib/capture-render-tree", ["exports", "@glimmer/util"], fun
 
   /**
     Ember Inspector calls this function to capture the current render tree.
-  
+
     In production mode, this requires turning on `ENV._DEBUG_RENDER_TREE`
     before loading Ember.
-  
+
     @private
     @static
     @method captureRenderTree
@@ -36350,10 +36350,10 @@ define("@ember/debug/lib/deprecate", ["exports", "@ember/-internals/environment"
     Deprecations are invoked by calls to [@ember/debug/deprecate](/ember/release/classes/@ember%2Fdebug/methods/deprecate?anchor=deprecate).
     The following example demonstrates its usage by registering a handler that throws an error if the
     message contains the word "should", otherwise defers to the default handler.
-  
+
     ```javascript
     import { registerDeprecationHandler } from '@ember/debug';
-  
+
     registerDeprecationHandler((message, options, next) => {
       if (message.indexOf('should') !== -1) {
         throw new Error(`Deprecation message with should: ${message}`);
@@ -36363,9 +36363,9 @@ define("@ember/debug/lib/deprecate", ["exports", "@ember/-internals/environment"
       }
     });
     ```
-  
+
     The handler function takes the following arguments:
-  
+
     <ul>
       <li> <code>message</code> - The message received from the deprecation call.</li>
       <li> <code>options</code> - An object passed in with the deprecation call containing additional information including:</li>
@@ -36375,7 +36375,7 @@ define("@ember/debug/lib/deprecate", ["exports", "@ember/-internals/environment"
         </ul>
       <li> <code>next</code> - A function that calls into the previously registered handler.</li>
     </ul>
-  
+
     @public
     @static
     @method registerDeprecationHandler
@@ -36749,14 +36749,14 @@ define("@ember/engine/index", ["exports", "@ember/engine/lib/engine-parent", "@e
   /**
     The `Engine` class contains core functionality for both applications and
     engines.
-  
+
     Each engine manages a registry that's used for dependency injection and
     exposed through `RegistryProxy`.
-  
+
     Engines also manage initializers and instance initializers.
-  
+
     Engines can spawn `EngineInstance` instances via `buildInstance()`.
-  
+
     @class Engine
     @extends Ember.Namespace
     @uses RegistryProxy
@@ -37096,15 +37096,15 @@ define("@ember/engine/index", ["exports", "@ember/engine/lib/engine-parent", "@e
   });
   /**
     This function defines the default lookup rules for container lookups:
-  
+
     * templates are looked up on `Ember.TEMPLATES`
     * other names are looked up on the application after classifying the name.
       For example, `controller:post` looks up `App.PostController` by default.
     * if the default lookup fails, look for registered classes on the container
-  
+
     This allows the application to register default injections in the container
     that could be overridden by the normal naming convention.
-  
+
     @private
     @method resolverFor
     @param {Ember.Namespace} namespace the namespace to look for classes
@@ -37191,7 +37191,7 @@ define("@ember/engine/instance", ["exports", "@ember/-internals/runtime", "@embe
   /**
     The `EngineInstance` encapsulates all of the stateful aspects of a
     running `Engine`.
-  
+
     @public
     @class EngineInstance
     @extends EmberObject
@@ -37386,7 +37386,7 @@ define("@ember/engine/lib/engine-parent", ["exports", "@ember/-internals/utils"]
   var ENGINE_PARENT = (0, _utils.symbol)('ENGINE_PARENT');
   /**
     `getEngineParent` retrieves an engine instance's parent instance.
-  
+
     @method getEngineParent
     @param {EngineInstance} engine An engine instance.
     @return {EngineInstance} The parent engine instance.
@@ -37400,7 +37400,7 @@ define("@ember/engine/lib/engine-parent", ["exports", "@ember/-internals/utils"]
   }
   /**
     `setEngineParent` sets an engine instance's parent instance.
-  
+
     @method setEngineParent
     @param {EngineInstance} engine An engine instance.
     @param {EngineInstance} parent The parent engine instance.
@@ -37426,7 +37426,7 @@ define("@ember/error/index", ["exports"], function (_exports) {
 
   /**
     The JavaScript Error object used by Ember.assert.
-  
+
     @class Error
     @namespace Ember
     @extends Error
@@ -37462,48 +37462,48 @@ define("@ember/instrumentation/index", ["exports", "@ember/-internals/environmen
     The purpose of the Ember Instrumentation module is
     to provide efficient, general-purpose instrumentation
     for Ember.
-  
+
     Subscribe to a listener by using `subscribe`:
-  
+
     ```javascript
     import { subscribe } from '@ember/instrumentation';
-  
+
     subscribe("render", {
       before(name, timestamp, payload) {
-  
+
       },
-  
+
       after(name, timestamp, payload) {
-  
+
       }
     });
     ```
-  
+
     If you return a value from the `before` callback, that same
     value will be passed as a fourth parameter to the `after`
     callback.
-  
+
     Instrument a block of code by using `instrument`:
-  
+
     ```javascript
     import { instrument } from '@ember/instrumentation';
-  
+
     instrument("render.handlebars", payload, function() {
       // rendering logic
     }, binding);
     ```
-  
+
     Event names passed to `instrument` are namespaced
     by periods, from more general to more specific. Subscribers
     can listen for events by whatever level of granularity they
     are interested in.
-  
+
     In the above example, the event is `render.handlebars`,
     and the subscriber listened for all events beginning with
     `render`. It would receive callbacks for events named
     `render`, `render.handlebars`, `render.container`, or
     even `render.handlebars.layout`.
-  
+
     @class Instrumentation
     @static
     @private
@@ -37646,14 +37646,14 @@ define("@ember/instrumentation/index", ["exports", "@ember/-internals/environmen
   }
   /**
     Subscribes to a particular event or instrumented block of code.
-  
+
     @method subscribe
     @for @ember/instrumentation
     @static
-  
+
     @param {String} [pattern] Namespaced event name.
     @param {Object} [object] Before and After hooks.
-  
+
     @return {Subscriber}
     @private
   */
@@ -37687,11 +37687,11 @@ define("@ember/instrumentation/index", ["exports", "@ember/-internals/environmen
   }
   /**
     Unsubscribes from a particular event or instrumented block of code.
-  
+
     @method unsubscribe
     @for @ember/instrumentation
     @static
-  
+
     @param {Object} [subscriber]
     @private
   */
@@ -37711,7 +37711,7 @@ define("@ember/instrumentation/index", ["exports", "@ember/-internals/environmen
   }
   /**
     Resets `Instrumentation` by flushing list of subscribers.
-  
+
     @method reset
     @for @ember/instrumentation
     @static
@@ -37990,11 +37990,11 @@ define("@ember/object/index", ["exports", "@ember/debug", "@ember/polyfills", "@
   /**
     Decorator that turns the target function into an Action which can be accessed
     directly by reference.
-  
+
     ```js
     import Component from '@ember/component';
     import { action, set } from '@ember/object';
-  
+
     export default class Tooltip extends Component {
       @action
       toggleShowing() {
@@ -38005,30 +38005,30 @@ define("@ember/object/index", ["exports", "@ember/debug", "@ember/polyfills", "@
     ```hbs
     <!-- template.hbs -->
     <button {{action this.toggleShowing}}>Show tooltip</button>
-  
+
     {{#if isShowing}}
       <div class="tooltip">
         I'm a tooltip!
       </div>
     {{/if}}
     ```
-  
+
     Decorated actions also interop with the string style template actions:
-  
+
     ```hbs
     <!-- template.hbs -->
     <button {{action "toggleShowing"}}>Show tooltip</button>
-  
+
     {{#if isShowing}}
       <div class="tooltip">
         I'm a tooltip!
       </div>
     {{/if}}
     ```
-  
+
     It also binds the function directly to the instance, so it can be used in any
     context and will correctly refer to the class it came from:
-  
+
     ```hbs
     <!-- template.hbs -->
     <button
@@ -38037,41 +38037,41 @@ define("@ember/object/index", ["exports", "@ember/debug", "@ember/polyfills", "@
     >
       Show tooltip
     </button>
-  
+
     {{#if isShowing}}
       <div class="tooltip">
         I'm a tooltip!
       </div>
     {{/if}}
     ```
-  
+
     This can also be used in JavaScript code directly:
-  
+
     ```js
     import Component from '@ember/component';
     import { action, set } from '@ember/object';
-  
+
     export default class Tooltip extends Component {
       constructor() {
         super(...arguments);
-  
+
         // this.toggleShowing is still bound correctly when added to
         // the event listener
         document.addEventListener('click', this.toggleShowing);
       }
-  
+
       @action
       toggleShowing() {
         set(this, 'isShowing', !this.isShowing);
       }
     }
     ```
-  
+
     This is considered best practice, since it means that methods will be bound
     correctly no matter where they are used. By contrast, the `{{action}}` helper
     and modifier can also be used to bind context, but it will be required for
     every usage of the method:
-  
+
     ```hbs
     <!-- template.hbs -->
     <button
@@ -38080,17 +38080,17 @@ define("@ember/object/index", ["exports", "@ember/debug", "@ember/polyfills", "@
     >
       Show tooltip
     </button>
-  
+
     {{#if isShowing}}
       <div class="tooltip">
         I'm a tooltip!
       </div>
     {{/if}}
     ```
-  
+
     They also do not have equivalents in JavaScript directly, so they cannot be
     used for other situations where binding would be useful.
-  
+
     @public
     @method action
     @for @ember/object
@@ -38222,49 +38222,49 @@ define("@ember/object/lib/computed/computed_macros", ["exports", "@ember/-intern
   /**
     A computed property macro that returns true if the value of the dependent
     property is null, an empty string, empty array, or empty function.
-  
+
     Example:
-  
+
     ```javascript
     import { set } from '@ember/object';
     import { empty } from '@ember/object/computed';
-  
+
     class ToDoList {
       constructor(todos) {
         set(this, 'todos', todos);
       }
-  
+
       @empty('todos') isDone;
     }
-  
+
     let todoList = new ToDoList(
       ['Unit Test', 'Documentation', 'Release']
     );
-  
+
     todoList.isDone; // false
     set(todoList, 'todos', []);
     todoList.isDone; // true
     ```
-  
+
     Classic Class Example:
-  
+
     ```javascript
     import EmberObject, { set } from '@ember/object';
     import { empty } from '@ember/object/computed';
-  
+
     let ToDoList = EmberObject.extend({
       isDone: empty('todos')
     });
-  
+
     let todoList = ToDoList.create({
       todos: ['Unit Test', 'Documentation', 'Release']
     });
-  
+
     todoList.isDone; // false
     set(todoList, 'todos', []);
     todoList.isDone; // true
     ```
-  
+
     @since 1.6.0
     @method empty
     @static
@@ -38273,7 +38273,7 @@ define("@ember/object/lib/computed/computed_macros", ["exports", "@ember/-intern
     @return {ComputedProperty} computed property which returns true if the value
     of the dependent property is null, an empty string, empty array, or empty
     function and false if the underlying value is not empty.
-  
+
     @public
   */
 
@@ -38287,49 +38287,49 @@ define("@ember/object/lib/computed/computed_macros", ["exports", "@ember/-intern
   /**
     A computed property that returns true if the value of the dependent property
     is NOT null, an empty string, empty array, or empty function.
-  
+
     Example:
-  
+
     ```javascript
     import { set } from '@ember/object';
     import { notEmpty } from '@ember/object/computed';
-  
+
     class Hamster {
       constructor(backpack) {
         set(this, 'backpack', backpack);
       }
-  
+
       @notEmpty('backpack') hasStuff
     }
-  
+
     let hamster = new Hamster(
       ['Food', 'Sleeping Bag', 'Tent']
     );
-  
+
     hamster.hasStuff; // true
     set(hamster, 'backpack', []);
     hamster.hasStuff; // false
     ```
-  
+
     Classic Class Example:
-  
+
     ```javascript
     import EmberObject, { set } from '@ember/object';
     import { notEmpty } from '@ember/object/computed';
-  
+
     let Hamster = EmberObject.extend({
       hasStuff: notEmpty('backpack')
     });
-  
+
     let hamster = Hamster.create({
       backpack: ['Food', 'Sleeping Bag', 'Tent']
     });
-  
+
     hamster.hasStuff; // true
     set(hamster, 'backpack', []);
     hamster.hasStuff; // false
     ```
-  
+
     @method notEmpty
     @static
     @for @ember/object/computed
@@ -38350,47 +38350,47 @@ define("@ember/object/lib/computed/computed_macros", ["exports", "@ember/-intern
     A computed property that returns true if the value of the dependent property
     is null or undefined. This avoids errors from JSLint complaining about use of
     ==, which can be technically confusing.
-  
+
     ```javascript
     import { set } from '@ember/object';
     import { none } from '@ember/object/computed';
-  
+
     class Hamster {
       @none('food') isHungry;
     }
-  
+
     let hamster = new Hamster();
-  
+
     hamster.isHungry; // true
-  
+
     set(hamster, 'food', 'Banana');
     hamster.isHungry; // false
-  
+
     set(hamster, 'food', null);
     hamster.isHungry; // true
     ```
-  
+
     Classic Class Example:
-  
+
     ```javascript
     import EmberObject, { set } from '@ember/object';
     import { none } from '@ember/object/computed';
-  
+
     let Hamster = EmberObject.extend({
       isHungry: none('food')
     });
-  
+
     let hamster = Hamster.create();
-  
+
     hamster.isHungry; // true
-  
+
     set(hamster, 'food', 'Banana');
     hamster.isHungry; // false
-  
+
     set(hamster, 'food', null);
     hamster.isHungry; // true
     ```
-  
+
     @method none
     @static
     @for @ember/object/computed
@@ -38410,45 +38410,45 @@ define("@ember/object/lib/computed/computed_macros", ["exports", "@ember/-intern
   /**
     A computed property that returns the inverse boolean value of the original
     value for the dependent property.
-  
+
     Example:
-  
+
     ```javascript
     import { set } from '@ember/object';
     import { not } from '@ember/object/computed';
-  
+
     class User {
       loggedIn = false;
-  
+
       @not('loggedIn') isAnonymous;
     }
-  
+
     let user = new User();
-  
+
     user.isAnonymous; // true
     set(user, 'loggedIn', true);
     user.isAnonymous; // false
     ```
-  
+
     Classic Class Example:
-  
+
     ```javascript
     import EmberObject, { set } from '@ember/object';
     import { not } from '@ember/object/computed';
-  
+
     let User = EmberObject.extend({
       loggedIn: false,
-  
+
       isAnonymous: not('loggedIn')
     });
-  
+
     let user = User.create();
-  
+
     user.isAnonymous; // true
     set(user, 'loggedIn', true);
     user.isAnonymous; // false
     ```
-  
+
     @method not
     @static
     @for @ember/object/computed
@@ -38468,57 +38468,57 @@ define("@ember/object/lib/computed/computed_macros", ["exports", "@ember/-intern
   /**
     A computed property that converts the provided dependent property into a
     boolean value.
-  
+
     Example:
-  
+
     ```javascript
     import { set } from '@ember/object';
     import { bool } from '@ember/object/computed';
-  
-  
+
+
     class Hamster {
       @bool('numBananas') hasBananas
     }
-  
+
     let hamster = new Hamster();
-  
+
     hamster.hasBananas; // false
-  
+
     set(hamster, 'numBananas', 0);
     hamster.hasBananas; // false
-  
+
     set(hamster, 'numBananas', 1);
     hamster.hasBananas; // true
-  
+
     set(hamster, 'numBananas', null);
     hamster.hasBananas; // false
     ```
-  
+
     Classic Class Example:
-  
+
     ```javascript
     import EmberObject, { set } from '@ember/object';
     import { bool } from '@ember/object/computed';
-  
-  
+
+
     let Hamster = EmberObject.extend({
       hasBananas: bool('numBananas')
     });
-  
+
     let hamster = Hamster.create();
-  
+
     hamster.hasBananas; // false
-  
+
     set(hamster, 'numBananas', 0);
     hamster.hasBananas; // false
-  
+
     set(hamster, 'numBananas', 1);
     hamster.hasBananas; // true
-  
+
     set(hamster, 'numBananas', null);
     hamster.hasBananas; // false
     ```
-  
+
     @method bool
     @static
     @for @ember/object/computed
@@ -38539,49 +38539,49 @@ define("@ember/object/lib/computed/computed_macros", ["exports", "@ember/-intern
     A computed property which matches the original value for the dependent
     property against a given RegExp, returning `true` if the value matches the
     RegExp and `false` if it does not.
-  
+
     Example:
-  
+
     ```javascript
     import { set } from '@ember/object';
     import { match } from '@ember/object/computed';
-  
+
     class User {
       @match('email', /^.+@.+\..+$/) hasValidEmail;
     }
-  
+
     let user = new User();
-  
+
     user.hasValidEmail; // false
-  
+
     set(user, 'email', '');
     user.hasValidEmail; // false
-  
+
     set(user, 'email', 'ember_hamster@example.com');
     user.hasValidEmail; // true
     ```
-  
+
     Classic Class Example:
-  
+
     ```javascript
     import EmberObject, { set } from '@ember/object';
     import { match } from '@ember/object/computed';
-  
+
     let User = EmberObject.extend({
       hasValidEmail: match('email', /^.+@.+\..+$/)
     });
-  
+
     let user = User.create();
-  
+
     user.hasValidEmail; // false
-  
+
     set(user, 'email', '');
     user.hasValidEmail; // false
-  
+
     set(user, 'email', 'ember_hamster@example.com');
     user.hasValidEmail; // true
     ```
-  
+
     @method match
     @static
     @for @ember/object/computed
@@ -38603,49 +38603,49 @@ define("@ember/object/lib/computed/computed_macros", ["exports", "@ember/-intern
   /**
     A computed property that returns true if the provided dependent property is
     equal to the given value.
-  
+
     Example:
-  
+
     ```javascript
     import { set } from '@ember/object';
     import { equal } from '@ember/object/computed';
-  
+
     class Hamster {
       @equal('percentCarrotsEaten', 100) satisfied;
     }
-  
+
     let hamster = new Hamster();
-  
+
     hamster.satisfied; // false
-  
+
     set(hamster, 'percentCarrotsEaten', 100);
     hamster.satisfied; // true
-  
+
     set(hamster, 'percentCarrotsEaten', 50);
     hamster.satisfied; // false
     ```
-  
+
     Classic Class Example:
-  
+
     ```javascript
     import EmberObject, { set } from '@ember/object';
     import { equal } from '@ember/object/computed';
-  
+
     let Hamster = EmberObject.extend({
       satisfied: equal('percentCarrotsEaten', 100)
     });
-  
+
     let hamster = Hamster.create();
-  
+
     hamster.satisfied; // false
-  
+
     set(hamster, 'percentCarrotsEaten', 100);
     hamster.satisfied; // true
-  
+
     set(hamster, 'percentCarrotsEaten', 50);
     hamster.satisfied; // false
     ```
-  
+
     @method equal
     @static
     @for @ember/object/computed
@@ -38666,49 +38666,49 @@ define("@ember/object/lib/computed/computed_macros", ["exports", "@ember/-intern
   /**
     A computed property that returns true if the provided dependent property is
     greater than the provided value.
-  
+
     Example:
-  
+
     ```javascript
     import { set } from '@ember/object';
     import { gt } from '@ember/object/computed';
-  
+
     class Hamster {
       @gt('numBananas', 10) hasTooManyBananas;
     }
-  
+
     let hamster = new Hamster();
-  
+
     hamster.hasTooManyBananas; // false
-  
+
     set(hamster, 'numBananas', 3);
     hamster.hasTooManyBananas; // false
-  
+
     set(hamster, 'numBananas', 11);
     hamster.hasTooManyBananas; // true
     ```
-  
+
     Classic Class Example:
-  
+
     ```javascript
     import EmberObject, { set } from '@ember/object';
     import { gt } from '@ember/object/computed';
-  
+
     let Hamster = EmberObject.extend({
       hasTooManyBananas: gt('numBananas', 10)
     });
-  
+
     let hamster = Hamster.create();
-  
+
     hamster.hasTooManyBananas; // false
-  
+
     set(hamster, 'numBananas', 3);
     hamster.hasTooManyBananas; // false
-  
+
     set(hamster, 'numBananas', 11);
     hamster.hasTooManyBananas; // true
     ```
-  
+
     @method gt
     @static
     @for @ember/object/computed
@@ -38729,49 +38729,49 @@ define("@ember/object/lib/computed/computed_macros", ["exports", "@ember/-intern
   /**
     A computed property that returns true if the provided dependent property is
     greater than or equal to the provided value.
-  
+
     Example:
-  
+
     ```javascript
     import { set } from '@ember/object';
     import { gte } from '@ember/object/computed';
-  
+
     class Hamster {
       @gte('numBananas', 10) hasTooManyBananas;
     }
-  
+
     let hamster = new Hamster();
-  
+
     hamster.hasTooManyBananas; // false
-  
+
     set(hamster, 'numBananas', 3);
     hamster.hasTooManyBananas; // false
-  
+
     set(hamster, 'numBananas', 10);
     hamster.hasTooManyBananas; // true
     ```
-  
+
     Classic Class Example:
-  
+
     ```javascript
     import EmberObject, { set } from '@ember/object';
     import { gte } from '@ember/object/computed';
-  
+
     let Hamster = EmberObject.extend({
       hasTooManyBananas: gte('numBananas', 10)
     });
-  
+
     let hamster = Hamster.create();
-  
+
     hamster.hasTooManyBananas; // false
-  
+
     set(hamster, 'numBananas', 3);
     hamster.hasTooManyBananas; // false
-  
+
     set(hamster, 'numBananas', 10);
     hamster.hasTooManyBananas; // true
     ```
-  
+
     @method gte
     @static
     @for @ember/object/computed
@@ -38792,49 +38792,49 @@ define("@ember/object/lib/computed/computed_macros", ["exports", "@ember/-intern
   /**
     A computed property that returns true if the provided dependent property is
     less than the provided value.
-  
+
     Example:
-  
+
     ```javascript
     import { set } from '@ember/object';
     import { lt } from '@ember/object/computed';
-  
+
     class Hamster {
       @lt('numBananas', 3) needsMoreBananas;
     }
-  
+
     let hamster = new Hamster();
-  
+
     hamster.needsMoreBananas; // true
-  
+
     set(hamster, 'numBananas', 3);
     hamster.needsMoreBananas; // false
-  
+
     set(hamster, 'numBananas', 2);
     hamster.needsMoreBananas; // true
     ```
-  
+
     Classic Class Example:
-  
+
     ```javascript
     import EmberObject, { set } from '@ember/object';
     import { lt } from '@ember/object/computed';
-  
+
     let Hamster = EmberObject.extend({
       needsMoreBananas: lt('numBananas', 3)
     });
-  
+
     let hamster = Hamster.create();
-  
+
     hamster.needsMoreBananas; // true
-  
+
     set(hamster, 'numBananas', 3);
     hamster.needsMoreBananas; // false
-  
+
     set(hamster, 'numBananas', 2);
     hamster.needsMoreBananas; // true
     ```
-  
+
     @method lt
     @static
     @for @ember/object/computed
@@ -38855,49 +38855,49 @@ define("@ember/object/lib/computed/computed_macros", ["exports", "@ember/-intern
   /**
     A computed property that returns true if the provided dependent property is
     less than or equal to the provided value.
-  
+
     Example:
-  
+
     ```javascript
     import { set } from '@ember/object';
     import { lte } from '@ember/object/computed';
-  
+
     class Hamster {
       @lte('numBananas', 3) needsMoreBananas;
     }
-  
+
     let hamster = new Hamster();
-  
+
     hamster.needsMoreBananas; // true
-  
+
     set(hamster, 'numBananas', 5);
     hamster.needsMoreBananas; // false
-  
+
     set(hamster, 'numBananas', 3);
     hamster.needsMoreBananas; // true
     ```
-  
+
     Classic Class Example:
-  
+
     ```javascript
     import EmberObject, { set } from '@ember/object';
     import { lte } from '@ember/object/computed';
-  
+
     let Hamster = EmberObject.extend({
       needsMoreBananas: lte('numBananas', 3)
     });
-  
+
     let hamster = Hamster.create();
-  
+
     hamster.needsMoreBananas; // true
-  
+
     set(hamster, 'numBananas', 5);
     hamster.needsMoreBananas; // false
-  
+
     set(hamster, 'numBananas', 3);
     hamster.needsMoreBananas; // true
     ```
-  
+
     @method lte
     @static
     @for @ember/object/computed
@@ -38918,67 +38918,67 @@ define("@ember/object/lib/computed/computed_macros", ["exports", "@ember/-intern
   /**
     A computed property that performs a logical `and` on the original values for
     the provided dependent properties.
-  
+
     You may pass in more than two properties and even use property brace
     expansion.  The computed property will return the first falsy value or last
     truthy value just like JavaScript's `&&` operator.
-  
+
     Example:
-  
+
     ```javascript
     import { set } from '@ember/object';
     import { and } from '@ember/object/computed';
-  
+
     class Hamster {
       @and('hasTent', 'hasBackpack') readyForCamp;
       @and('hasWalkingStick', 'hasBackpack') readyForHike;
     }
-  
+
     let tomster = new Hamster();
-  
+
     tomster.readyForCamp; // false
-  
+
     set(tomster, 'hasTent', true);
     tomster.readyForCamp; // false
-  
+
     set(tomster, 'hasBackpack', true);
     tomster.readyForCamp; // true
-  
+
     set(tomster, 'hasBackpack', 'Yes');
     tomster.readyForCamp; // 'Yes'
-  
+
     set(tomster, 'hasWalkingStick', null);
     tomster.readyForHike; // null
     ```
-  
+
     Classic Class Example:
-  
+
     ```javascript
     import EmberObject, { set } from '@ember/object';
     import { and } from '@ember/object/computed';
-  
+
     let Hamster = EmberObject.extend({
       readyForCamp: and('hasTent', 'hasBackpack'),
       readyForHike: and('hasWalkingStick', 'hasBackpack')
     });
-  
+
     let tomster = Hamster.create();
-  
+
     tomster.readyForCamp; // false
-  
+
     set(tomster, 'hasTent', true);
     tomster.readyForCamp; // false
-  
+
     set(tomster, 'hasBackpack', true);
     tomster.readyForCamp; // true
-  
+
     set(tomster, 'hasBackpack', 'Yes');
     tomster.readyForCamp; // 'Yes'
-  
+
     set(tomster, 'hasWalkingStick', null);
     tomster.readyForHike; // null
     ```
-  
+
     @method and
     @static
     @for @ember/object/computed
@@ -38993,61 +38993,61 @@ define("@ember/object/lib/computed/computed_macros", ["exports", "@ember/-intern
   /**
     A computed property which performs a logical `or` on the original values for
     the provided dependent properties.
-  
+
     You may pass in more than two properties and even use property brace
     expansion.  The computed property will return the first truthy value or last
     falsy value just like JavaScript's `||` operator.
-  
+
     Example:
-  
+
     ```javascript
     import { set } from '@ember/object';
     import { or } from '@ember/object/computed';
-  
+
     class Hamster {
       @or('hasJacket', 'hasUmbrella') readyForRain;
       @or('hasSunscreen', 'hasUmbrella') readyForBeach;
     }
-  
+
     let tomster = new Hamster();
-  
+
     tomster.readyForRain; // undefined
-  
+
     set(tomster, 'hasUmbrella', true);
     tomster.readyForRain; // true
-  
+
     set(tomster, 'hasJacket', 'Yes');
     tomster.readyForRain; // 'Yes'
-  
+
     set(tomster, 'hasSunscreen', 'Check');
     tomster.readyForBeach; // 'Check'
     ```
-  
+
     Classic Class Example:
-  
+
     ```javascript
     import EmberObject, { set } from '@ember/object';
     import { or } from '@ember/object/computed';
-  
+
     let Hamster = EmberObject.extend({
       readyForRain: or('hasJacket', 'hasUmbrella'),
       readyForBeach: or('hasSunscreen', 'hasUmbrella')
     });
-  
+
     let tomster = Hamster.create();
-  
+
     tomster.readyForRain; // undefined
-  
+
     set(tomster, 'hasUmbrella', true);
     tomster.readyForRain; // true
-  
+
     set(tomster, 'hasJacket', 'Yes');
     tomster.readyForRain; // 'Yes'
-  
+
     set(tomster, 'hasSunscreen', 'Check');
     tomster.readyForBeach; // 'Check'
     ```
-  
+
     @method or
     @static
     @for @ember/object/computed
@@ -39063,49 +39063,49 @@ define("@ember/object/lib/computed/computed_macros", ["exports", "@ember/-intern
     Creates a new property that is an alias for another property on an object.
     Calls to `get` or `set` this property behave as though they were called on the
     original property.
-  
+
     Example:
-  
+
     ```javascript
     import { set } from '@ember/object';
     import { alias } from '@ember/object/computed';
-  
+
     class Person {
       name = 'Alex Matchneer';
-  
+
       @alias('name') nomen;
     }
-  
+
     let alex = new Person();
-  
+
     alex.nomen; // 'Alex Matchneer'
     alex.name;  // 'Alex Matchneer'
-  
+
     set(alex, 'nomen', '@machty');
     alex.name;  // '@machty'
     ```
-  
+
     Classic Class Example:
-  
+
     ```javascript
     import EmberObject, { set } from '@ember/object';
     import { alias } from '@ember/object/computed';
-  
+
     let Person = EmberObject.extend({
       name: 'Alex Matchneer',
-  
+
       nomen: alias('name')
     });
-  
+
     let alex = Person.create();
-  
+
     alex.nomen; // 'Alex Matchneer'
     alex.name;  // 'Alex Matchneer'
-  
+
     set(alex, 'nomen', '@machty');
     alex.name;  // '@machty'
     ```
-  
+
     @method alias
     @static
     @for @ember/object/computed
@@ -39121,56 +39121,56 @@ define("@ember/object/lib/computed/computed_macros", ["exports", "@ember/-intern
     not mutate the upstream property, rather causes the current property to become
     the value set. This causes the downstream property to permanently diverge from
     the upstream property.
-  
+
     Example:
-  
+
     ```javascript
     import { set } from '@ember/object';
     import { oneWay }from '@ember/object/computed';
-  
+
     class User {
       constructor(firstName, lastName) {
         set(this, 'firstName', firstName);
         set(this, 'lastName', lastName);
       }
-  
+
       @oneWay('firstName') nickName;
     }
-  
+
     let teddy = new User('Teddy', 'Zeenny');
-  
+
     teddy.nickName; // 'Teddy'
-  
+
     set(teddy, 'nickName', 'TeddyBear');
     teddy.firstName; // 'Teddy'
     teddy.nickName; // 'TeddyBear'
     ```
-  
+
     Classic Class Example:
-  
+
     ```javascript
     import EmberObject, { set } from '@ember/object';
     import { oneWay } from '@ember/object/computed';
-  
+
     let User = EmberObject.extend({
       firstName: null,
       lastName: null,
-  
+
       nickName: oneWay('firstName')
     });
-  
+
     let teddy = User.create({
       firstName: 'Teddy',
       lastName: 'Zeenny'
     });
-  
+
     teddy.nickName; // 'Teddy'
-  
+
     set(teddy, 'nickName', 'TeddyBear'); // 'TeddyBear'
     teddy.firstName; // 'Teddy'
     teddy.nickName; // 'TeddyBear'
     ```
-  
+
     @method oneWay
     @static
     @for @ember/object/computed
@@ -39189,7 +39189,7 @@ define("@ember/object/lib/computed/computed_macros", ["exports", "@ember/-intern
   /**
     This is a more semantically meaningful alias of `computed.oneWay`, whose name
     is somewhat ambiguous as to which direction the data flows.
-  
+
     @method reads
     @static
     @for @ember/object/computed
@@ -39203,60 +39203,60 @@ define("@ember/object/lib/computed/computed_macros", ["exports", "@ember/-intern
     Where `computed.oneWay` provides oneWay bindings, `computed.readOnly` provides
     a readOnly one way binding. Very often when using `computed.oneWay` one does
     not also want changes to propagate back up, as they will replace the value.
-  
+
     This prevents the reverse flow, and also throws an exception when it occurs.
-  
+
     Example:
-  
+
     ```javascript
     import { set } from '@ember/object';
     import { readOnly } from '@ember/object/computed';
-  
+
     class User {
       constructor(firstName, lastName) {
         set(this, 'firstName', firstName);
         set(this, 'lastName', lastName);
       }
-  
+
       @readOnly('firstName') nickName;
     });
-  
+
     let teddy = new User('Teddy', 'Zeenny');
-  
+
     teddy.nickName; // 'Teddy'
-  
+
     set(teddy, 'nickName', 'TeddyBear'); // throws Exception
     // throw new EmberError('Cannot Set: nickName on: <User:ember27288>' );`
-  
+
     teddy.firstName; // 'Teddy'
     ```
-  
+
     Classic Class Example:
-  
+
     ```javascript
     import EmberObject, { set } from '@ember/object';
     import { readOnly } from '@ember/object/computed';
-  
+
     let User = EmberObject.extend({
       firstName: null,
       lastName: null,
-  
+
       nickName: readOnly('firstName')
     });
-  
+
     let teddy = User.create({
       firstName: 'Teddy',
       lastName:  'Zeenny'
     });
-  
+
     teddy.nickName; // 'Teddy'
-  
+
     set(teddy, 'nickName', 'TeddyBear'); // throws Exception
     // throw new EmberError('Cannot Set: nickName on: <User:ember27288>' );`
-  
+
     teddy.firstName; // 'Teddy'
     ```
-  
+
     @method readOnly
     @static
     @for @ember/object/computed
@@ -39276,13 +39276,13 @@ define("@ember/object/lib/computed/computed_macros", ["exports", "@ember/-intern
     Creates a new property that is an alias for another property on an object.
     Calls to `get` or `set` this property behave as though they were called on the
     original property, but also print a deprecation warning.
-  
+
     Example:
-  
+
     ```javascript
     import { set } from '@ember/object';
     import { deprecatingAlias } from '@ember/object/computed';
-  
+
     class Hamster {
       @deprecatingAlias('cavendishCount', {
         id: 'hamster.deprecate-banana',
@@ -39290,32 +39290,32 @@ define("@ember/object/lib/computed/computed_macros", ["exports", "@ember/-intern
       })
       bananaCount;
     }
-  
+
     let hamster = new Hamster();
-  
+
     set(hamster, 'bananaCount', 5); // Prints a deprecation warning.
     hamster.cavendishCount; // 5
     ```
-  
+
     Classic Class Example:
-  
+
     ```javascript
     import EmberObject, { set } from '@ember/object';
     import { deprecatingAlias } from '@ember/object/computed';
-  
+
     let Hamster = EmberObject.extend({
       bananaCount: deprecatingAlias('cavendishCount', {
         id: 'hamster.deprecate-banana',
         until: '3.0.0'
       })
     });
-  
+
     let hamster = Hamster.create();
-  
+
     set(hamster, 'bananaCount', 5); // Prints a deprecation warning.
     hamster.cavendishCount; // 5
     ```
-  
+
     @method deprecatingAlias
     @static
     @for @ember/object/computed
@@ -39415,40 +39415,40 @@ define("@ember/object/lib/computed/reduce_computed_macros", ["exports", "@ember/
   }
   /**
     A computed property that returns the sum of the values in the dependent array.
-  
+
     Example:
-  
+
     ```javascript
     import { sum } from '@ember/object/computed';
-  
+
     class Invoice {
       lineItems = [1.00, 2.50, 9.99];
-  
+
       @sum('lineItems') total;
     }
-  
+
     let invoice = new Invoice();
-  
+
     invoice.total; // 13.49
     ```
-  
+
     Classic Class Example:
-  
+
     ```javascript
     import EmberObject from '@ember/object';
     import { sum } from '@ember/object/computed';
-  
+
     let Invoice = EmberObject.extend({
       lineItems: [1.00, 2.50, 9.99],
-  
+
       total: sum('lineItems')
     })
-  
+
     let invoice = Invoice.create();
-  
+
     invoice.total; // 13.49
     ```
-  
+
     @method sum
     @for @ember/object/computed
     @static
@@ -39467,24 +39467,24 @@ define("@ember/object/lib/computed/reduce_computed_macros", ["exports", "@ember/
   /**
     A computed property that calculates the maximum value in the dependent array.
     This will return `-Infinity` when the dependent array is empty.
-  
+
     Example:
-  
+
     ```javascript
     import { set } from '@ember/object';
     import { mapBy, max } from '@ember/object/computed';
-  
+
     class Person {
       children = [];
-  
+
       @mapBy('children', 'age') childAges;
       @max('childAges') maxChildAge;
     }
-  
+
     let lordByron = new Person();
-  
+
     lordByron.maxChildAge; // -Infinity
-  
+
     set(lordByron, 'children', [
       {
         name: 'Augusta Ada Byron',
@@ -39492,7 +39492,7 @@ define("@ember/object/lib/computed/reduce_computed_macros", ["exports", "@ember/
       }
     ]);
     lordByron.maxChildAge; // 7
-  
+
     set(lordByron, 'children', [
       ...lordByron.children,
       {
@@ -39505,22 +39505,22 @@ define("@ember/object/lib/computed/reduce_computed_macros", ["exports", "@ember/
     ]);
     lordByron.maxChildAge; // 8
     ```
-  
+
     Classic Class Example:
-  
+
     ```javascript
     import EmberObject, { set } from '@ember/object';
     import { mapBy, max } from '@ember/object/computed';
-  
+
     let Person = EmberObject.extend({
       childAges: mapBy('children', 'age'),
       maxChildAge: max('childAges')
     });
-  
+
     let lordByron = Person.create({ children: [] });
-  
+
     lordByron.maxChildAge; // -Infinity
-  
+
     set(lordByron, 'children', [
       {
         name: 'Augusta Ada Byron',
@@ -39528,7 +39528,7 @@ define("@ember/object/lib/computed/reduce_computed_macros", ["exports", "@ember/
       }
     ]);
     lordByron.maxChildAge; // 7
-  
+
     set(lordByron, 'children', [
       ...lordByron.children,
       {
@@ -39541,12 +39541,12 @@ define("@ember/object/lib/computed/reduce_computed_macros", ["exports", "@ember/
     ]);
     lordByron.maxChildAge; // 8
     ```
-  
+
     If the types of the arguments are not numbers, they will be converted to
     numbers and the type of the return value will always be `Number`. For example,
     the max of a list of Date objects will be the highest timestamp as a `Number`.
     This behavior is consistent with `Math.max`.
-  
+
     @method max
     @for @ember/object/computed
     @static
@@ -39564,24 +39564,24 @@ define("@ember/object/lib/computed/reduce_computed_macros", ["exports", "@ember/
   /**
     A computed property that calculates the minimum value in the dependent array.
     This will return `Infinity` when the dependent array is empty.
-  
+
     Example:
-  
+
     ```javascript
     import { set } from '@ember/object';
     import { mapBy, min } from '@ember/object/computed';
-  
+
     class Person {
       children = [];
-  
+
       @mapBy('children', 'age') childAges;
       @min('childAges') minChildAge;
     }
-  
+
     let lordByron = Person.create({ children: [] });
-  
+
     lordByron.minChildAge; // Infinity
-  
+
     set(lordByron, 'children', [
       {
         name: 'Augusta Ada Byron',
@@ -39589,7 +39589,7 @@ define("@ember/object/lib/computed/reduce_computed_macros", ["exports", "@ember/
       }
     ]);
     lordByron.minChildAge; // 7
-  
+
     set(lordByron, 'children', [
       ...lordByron.children,
       {
@@ -39602,22 +39602,22 @@ define("@ember/object/lib/computed/reduce_computed_macros", ["exports", "@ember/
     ]);
     lordByron.minChildAge; // 5
     ```
-  
+
     Classic Class Example:
-  
+
     ```javascript
     import EmberObject, { set } from '@ember/object';
     import { mapBy, min } from '@ember/object/computed';
-  
+
     let Person = EmberObject.extend({
       childAges: mapBy('children', 'age'),
       minChildAge: min('childAges')
     });
-  
+
     let lordByron = Person.create({ children: [] });
-  
+
     lordByron.minChildAge; // Infinity
-  
+
     set(lordByron, 'children', [
       {
         name: 'Augusta Ada Byron',
@@ -39625,7 +39625,7 @@ define("@ember/object/lib/computed/reduce_computed_macros", ["exports", "@ember/
       }
     ]);
     lordByron.minChildAge; // 7
-  
+
     set(lordByron, 'children', [
       ...lordByron.children,
       {
@@ -39638,12 +39638,12 @@ define("@ember/object/lib/computed/reduce_computed_macros", ["exports", "@ember/
     ]);
     lordByron.minChildAge; // 5
     ```
-  
+
     If the types of the arguments are not numbers, they will be converted to
     numbers and the type of the return value will always be `Number`. For example,
     the min of a list of Date objects will be the lowest timestamp as a `Number`.
     This behavior is consistent with `Math.min`.
-  
+
     @method min
     @for @ember/object/computed
     @static
@@ -39659,70 +39659,70 @@ define("@ember/object/lib/computed/reduce_computed_macros", ["exports", "@ember/
   }
   /**
     Returns an array mapped via the callback
-  
+
     The callback method you provide should have the following signature:
     - `item` is the current item in the iteration.
     - `index` is the integer index of the current item in the iteration.
-  
+
     ```javascript
     function mapCallback(item, index);
     ```
-  
+
     Example:
-  
+
     ```javascript
     import { set } from '@ember/object';
     import { map } from '@ember/object/computed';
-  
+
     class Hamster {
       constructor(chores) {
         set(this, 'chores', chores);
       }
-  
+
       @map('chores', function(chore, index) {
         return `${chore.toUpperCase()}!`;
       })
       excitingChores;
     });
-  
+
     let hamster = new Hamster(['clean', 'write more unit tests']);
-  
+
     hamster.excitingChores; // ['CLEAN!', 'WRITE MORE UNIT TESTS!']
     ```
-  
+
     Classic Class Example:
-  
+
     ```javascript
     import EmberObject from '@ember/object';
     import { map } from '@ember/object/computed';
-  
+
     let Hamster = EmberObject.extend({
       excitingChores: map('chores', function(chore, index) {
         return `${chore.toUpperCase()}!`;
       })
     });
-  
+
     let hamster = Hamster.create({
       chores: ['clean', 'write more unit tests']
     });
-  
+
     hamster.excitingChores; // ['CLEAN!', 'WRITE MORE UNIT TESTS!']
     ```
-  
+
     You can optionally pass an array of additional dependent keys as the second
     parameter to the macro, if your map function relies on any external values:
-  
+
     ```javascript
     import { set } from '@ember/object';
     import { map } from '@ember/object/computed';
-  
+
     class Hamster {
       shouldUpperCase = false;
-  
+
       constructor(chores) {
         set(this, 'chores', chores);
       }
-  
+
       @map('chores', ['shouldUpperCase'], function(chore, index) {
         if (this.shouldUpperCase) {
           return `${chore.toUpperCase()}!`;
@@ -39732,15 +39732,15 @@ define("@ember/object/lib/computed/reduce_computed_macros", ["exports", "@ember/
       })
       excitingChores;
     }
-  
+
     let hamster = new Hamster(['clean', 'write more unit tests']);
-  
+
     hamster.excitingChores; // ['clean!', 'write more unit tests!']
-  
+
     set(hamster, 'shouldUpperCase', true);
     hamster.excitingChores; // ['CLEAN!', 'WRITE MORE UNIT TESTS!']
     ```
-  
+
     @method map
     @for @ember/object/computed
     @static
@@ -39769,23 +39769,23 @@ define("@ember/object/lib/computed/reduce_computed_macros", ["exports", "@ember/
   }
   /**
     Returns an array mapped to the specified key.
-  
+
     Example:
-  
+
     ```javascript
     import { set } from '@ember/object';
     import { mapBy } from '@ember/object/computed';
-  
+
     class Person {
       children = [];
-  
+
       @mapBy('children', 'age') childAges;
     }
-  
+
     let lordByron = new Person();
-  
+
     lordByron.childAges; // []
-  
+
     set(lordByron, 'children', [
       {
         name: 'Augusta Ada Byron',
@@ -39793,7 +39793,7 @@ define("@ember/object/lib/computed/reduce_computed_macros", ["exports", "@ember/
       }
     ]);
     lordByron.childAges; // [7]
-  
+
     set(lordByron, 'children', [
       ...lordByron.children,
       {
@@ -39806,21 +39806,21 @@ define("@ember/object/lib/computed/reduce_computed_macros", ["exports", "@ember/
     ]);
     lordByron.childAges; // [7, 5, 8]
     ```
-  
+
     Classic Class Example:
-  
+
     ```javascript
     import EmberObject, { set } from '@ember/object';
     import { mapBy } from '@ember/object/computed';
-  
+
     let Person = EmberObject.extend({
       childAges: mapBy('children', 'age')
     });
-  
+
     let lordByron = Person.create({ children: [] });
-  
+
     lordByron.childAges; // []
-  
+
     set(lordByron, 'children', [
       {
         name: 'Augusta Ada Byron',
@@ -39828,7 +39828,7 @@ define("@ember/object/lib/computed/reduce_computed_macros", ["exports", "@ember/
       }
     ]);
     lordByron.childAges; // [7]
-  
+
     set(lordByron, 'children', [
       ...lordByron.children,
       {
@@ -39841,7 +39841,7 @@ define("@ember/object/lib/computed/reduce_computed_macros", ["exports", "@ember/
     ]);
     lordByron.childAges; // [7, 5, 8]
     ```
-  
+
     @method mapBy
     @for @ember/object/computed
     @static
@@ -39860,54 +39860,54 @@ define("@ember/object/lib/computed/reduce_computed_macros", ["exports", "@ember/
   }
   /**
     Filters the array by the callback.
-  
+
     The callback method you provide should have the following signature:
     - `item` is the current item in the iteration.
     - `index` is the integer index of the current item in the iteration.
     - `array` is the dependant array itself.
-  
+
     ```javascript
     function filterCallback(item, index, array);
     ```
-  
+
     Example:
-  
+
     ```javascript
     import { set } from '@ember/object';
     import { filter } from '@ember/object/computed';
-  
+
     class Hamster {
       constructor(chores) {
         set(this, 'chores', chores);
       }
-  
+
       @filter('chores', function(chore, index, array) {
         return !chore.done;
       })
       remainingChores;
     }
-  
+
     let hamster = Hamster.create([
       { name: 'cook', done: true },
       { name: 'clean', done: true },
       { name: 'write more unit tests', done: false }
     ]);
-  
+
     hamster.remainingChores; // [{name: 'write more unit tests', done: false}]
     ```
-  
+
     Classic Class Example:
-  
+
     ```javascript
     import EmberObject from '@ember/object';
     import { filter } from '@ember/object/computed';
-  
+
     let Hamster = EmberObject.extend({
       remainingChores: filter('chores', function(chore, index, array) {
         return !chore.done;
       })
     });
-  
+
     let hamster = Hamster.create({
       chores: [
         { name: 'cook', done: true },
@@ -39915,68 +39915,68 @@ define("@ember/object/lib/computed/reduce_computed_macros", ["exports", "@ember/
         { name: 'write more unit tests', done: false }
       ]
     });
-  
+
     hamster.remainingChores; // [{name: 'write more unit tests', done: false}]
     ```
-  
+
     You can also use `@each.property` in your dependent key, the callback will
     still use the underlying array:
-  
+
     ```javascript
     import { set } from '@ember/object';
     import { filter } from '@ember/object/computed';
-  
+
     class Hamster {
       constructor(chores) {
         set(this, 'chores', chores);
       }
-  
+
       @filter('chores.@each.done', function(chore, index, array) {
         return !chore.done;
       })
       remainingChores;
     }
-  
+
     let hamster = new Hamster([
       { name: 'cook', done: true },
       { name: 'clean', done: true },
       { name: 'write more unit tests', done: false }
     ]);
     hamster.remainingChores; // [{name: 'write more unit tests', done: false}]
-  
+
     set(hamster.chores[2], 'done', true);
     hamster.remainingChores; // []
     ```
-  
+
     Finally, you can optionally pass an array of additional dependent keys as the
     second parameter to the macro, if your filter function relies on any external
     values:
-  
+
     ```javascript
     import { filter } from '@ember/object/computed';
-  
+
     class Hamster {
       constructor(chores) {
         set(this, 'chores', chores);
       }
-  
+
       doneKey = 'finished';
-  
+
       @filter('chores', ['doneKey'], function(chore, index, array) {
         return !chore[this.doneKey];
       })
       remainingChores;
     }
-  
+
     let hamster = new Hamster([
       { name: 'cook', finished: true },
       { name: 'clean', finished: true },
       { name: 'write more unit tests', finished: false }
     ]);
-  
+
     hamster.remainingChores; // [{name: 'write more unit tests', finished: false}]
     ```
-  
+
     @method filter
     @for @ember/object/computed
     @static
@@ -40004,40 +40004,40 @@ define("@ember/object/lib/computed/reduce_computed_macros", ["exports", "@ember/
   }
   /**
     Filters the array by the property and value.
-  
+
     Example:
-  
+
     ```javascript
     import { set } from '@ember/object';
     import { filterBy } from '@ember/object/computed';
-  
+
     class Hamster {
       constructor(chores) {
         set(this, 'chores', chores);
       }
-  
+
       @filterBy('chores', 'done', false) remainingChores;
     }
-  
+
     let hamster = new Hamster([
       { name: 'cook', done: true },
       { name: 'clean', done: true },
       { name: 'write more unit tests', done: false }
     ]);
-  
+
     hamster.remainingChores; // [{ name: 'write more unit tests', done: false }]
     ```
-  
+
     Classic Class Example:
-  
+
     ```javascript
     import EmberObject from '@ember/object';
     import { filterBy } from '@ember/object/computed';
-  
+
     let Hamster = EmberObject.extend({
       remainingChores: filterBy('chores', 'done', false)
     });
-  
+
     let hamster = Hamster.create({
       chores: [
         { name: 'cook', done: true },
@@ -40045,10 +40045,10 @@ define("@ember/object/lib/computed/reduce_computed_macros", ["exports", "@ember/
         { name: 'write more unit tests', done: false }
       ]
     });
-  
+
     hamster.remainingChores; // [{ name: 'write more unit tests', done: false }]
     ```
-  
+
     @method filterBy
     @for @ember/object/computed
     @static
@@ -40076,41 +40076,41 @@ define("@ember/object/lib/computed/reduce_computed_macros", ["exports", "@ember/
   /**
     A computed property which returns a new array with all the unique elements
     from one or more dependent arrays.
-  
+
     Example:
-  
+
     ```javascript
     import { set } from '@ember/object';
     import { uniq } from '@ember/object/computed';
-  
+
     class Hamster {
       constructor(fruits) {
         set(this, 'fruits', fruits);
       }
-  
+
       @uniq('fruits') uniqueFruits;
     }
-  
+
     let hamster = new Hamster([
       'banana',
       'grape',
       'kale',
       'banana'
     ]);
-  
+
     hamster.uniqueFruits; // ['banana', 'grape', 'kale']
     ```
-  
+
     Classic Class Example:
-  
+
     ```javascript
     import EmberObject from '@ember/object';
     import { uniq } from '@ember/object/computed';
-  
+
     let Hamster = EmberObject.extend({
       uniqueFruits: uniq('fruits')
     });
-  
+
     let hamster = Hamster.create({
       fruits: [
         'banana',
@@ -40119,10 +40119,10 @@ define("@ember/object/lib/computed/reduce_computed_macros", ["exports", "@ember/
         'banana'
       ]
     });
-  
+
     hamster.uniqueFruits; // ['banana', 'grape', 'kale']
     ```
-  
+
     @method uniq
     @for @ember/object/computed
     @static
@@ -40156,41 +40156,41 @@ define("@ember/object/lib/computed/reduce_computed_macros", ["exports", "@ember/
   /**
     A computed property which returns a new array with all the unique elements
     from an array, with uniqueness determined by specific key.
-  
+
     Example:
-  
+
     ```javascript
     import { set } from '@ember/object';
     import { uniqBy } from '@ember/object/computed';
-  
+
     class Hamster {
       constructor(fruits) {
         set(this, 'fruits', fruits);
       }
-  
+
       @uniqBy('fruits', 'id') uniqueFruits;
     }
-  
+
     let hamster = new Hamster([
       { id: 1, 'banana' },
       { id: 2, 'grape' },
       { id: 3, 'peach' },
       { id: 1, 'banana' }
     ]);
-  
+
     hamster.uniqueFruits; // [ { id: 1, 'banana' }, { id: 2, 'grape' }, { id: 3, 'peach' }]
     ```
-  
+
     Classic Class Example:
-  
+
     ```javascript
     import EmberObject from '@ember/object';
     import { uniqBy } from '@ember/object/computed';
-  
+
     let Hamster = EmberObject.extend({
       uniqueFruits: uniqBy('fruits', 'id')
     });
-  
+
     let hamster = Hamster.create({
       fruits: [
         { id: 1, 'banana' },
@@ -40199,10 +40199,10 @@ define("@ember/object/lib/computed/reduce_computed_macros", ["exports", "@ember/
         { id: 1, 'banana' }
       ]
     });
-  
+
     hamster.uniqueFruits; // [ { id: 1, 'banana' }, { id: 2, 'grape' }, { id: 3, 'peach' }]
     ```
-  
+
     @method uniqBy
     @for @ember/object/computed
     @static
@@ -40225,22 +40225,22 @@ define("@ember/object/lib/computed/reduce_computed_macros", ["exports", "@ember/
   /**
     A computed property which returns a new array with all the unique elements
     from one or more dependent arrays.
-  
+
     Example:
-  
+
     ```javascript
     import { set } from '@ember/object';
     import { union } from '@ember/object/computed';
-  
+
     class Hamster {
       constructor(fruits, vegetables) {
         set(this, 'fruits', fruits);
         set(this, 'vegetables', vegetables);
       }
-  
+
       @union('fruits', 'vegetables') ediblePlants;
     });
-  
+
     let hamster = new, Hamster(
       [
         'banana',
@@ -40255,20 +40255,20 @@ define("@ember/object/lib/computed/reduce_computed_macros", ["exports", "@ember/
         'lettuce'
       ]
     );
-  
+
     hamster.uniqueFruits; // ['banana', 'grape', 'kale', 'tomato', 'carrot', 'lettuce']
     ```
-  
+
     Classic Class Example:
-  
+
     ```javascript
     import EmberObject from '@ember/object';
     import { union } from '@ember/object/computed';
-  
+
     let Hamster = EmberObject.extend({
       uniqueFruits: union('fruits', 'vegetables')
     });
-  
+
     let hamster = Hamster.create({
       fruits: [
         'banana',
@@ -40283,10 +40283,10 @@ define("@ember/object/lib/computed/reduce_computed_macros", ["exports", "@ember/
         'lettuce'
       ]
     });
-  
+
     hamster.uniqueFruits; // ['banana', 'grape', 'kale', 'tomato', 'carrot', 'lettuce']
     ```
-  
+
     @method union
     @for @ember/object/computed
     @static
@@ -40301,48 +40301,48 @@ define("@ember/object/lib/computed/reduce_computed_macros", ["exports", "@ember/
   /**
     A computed property which returns a new array with all the elements
     two or more dependent arrays have in common.
-  
+
     Example:
-  
+
     ```javascript
     import { set } from '@ember/object';
     import { intersect } from '@ember/object/computed';
-  
+
     class FriendGroups {
       constructor(adaFriends, charlesFriends) {
         set(this, 'adaFriends', adaFriends);
         set(this, 'charlesFriends', charlesFriends);
       }
-  
+
       @intersect('adaFriends', 'charlesFriends') friendsInCommon;
     }
-  
+
     let groups = new FriendGroups(
       ['Charles Babbage', 'John Hobhouse', 'William King', 'Mary Somerville'],
       ['William King', 'Mary Somerville', 'Ada Lovelace', 'George Peacock']
     );
-  
+
     groups.friendsInCommon; // ['William King', 'Mary Somerville']
     ```
-  
+
     Classic Class Example:
-  
+
     ```javascript
     import EmberObject from '@ember/object';
     import { intersect } from '@ember/object/computed';
-  
+
     let FriendGroups = EmberObject.extend({
       friendsInCommon: intersect('adaFriends', 'charlesFriends')
     });
-  
+
     let groups = FriendGroups.create({
       adaFriends: ['Charles Babbage', 'John Hobhouse', 'William King', 'Mary Somerville'],
       charlesFriends: ['William King', 'Mary Somerville', 'Ada Lovelace', 'George Peacock']
     });
-  
+
     groups.friendsInCommon; // ['William King', 'Mary Somerville']
     ```
-  
+
     @method intersect
     @for @ember/object/computed
     @static
@@ -40386,22 +40386,22 @@ define("@ember/object/lib/computed/reduce_computed_macros", ["exports", "@ember/
   /**
     A computed property which returns a new array with all the properties from the
     first dependent array that are not in the second dependent array.
-  
+
     Example:
-  
+
     ```javascript
     import { set } from '@ember/object';
     import { setDiff } from '@ember/object/computed';
-  
+
     class Hamster {
       constructor(likes, fruits) {
         set(this, 'likes', likes);
         set(this, 'fruits', fruits);
       }
-  
+
       @setDiff('likes', 'fruits') wants;
     }
-  
+
     let hamster = new Hamster(
       [
         'banana',
@@ -40413,20 +40413,20 @@ define("@ember/object/lib/computed/reduce_computed_macros", ["exports", "@ember/
         'kale',
       ]
     );
-  
+
     hamster.wants; // ['banana']
     ```
-  
+
     Classic Class Example:
-  
+
     ```javascript
     import EmberObject from '@ember/object';
     import { setDiff } from '@ember/object/computed';
-  
+
     let Hamster = EmberObject.extend({
       wants: setDiff('likes', 'fruits')
     });
-  
+
     let hamster = Hamster.create({
       likes: [
         'banana',
@@ -40438,10 +40438,10 @@ define("@ember/object/lib/computed/reduce_computed_macros", ["exports", "@ember/
         'kale',
       ]
     });
-  
+
     hamster.wants; // ['banana']
     ```
-  
+
     @method setDiff
     @for @ember/object/computed
     @static
@@ -40475,45 +40475,45 @@ define("@ember/object/lib/computed/reduce_computed_macros", ["exports", "@ember/
   /**
     A computed property that returns the array of values for the provided
     dependent properties.
-  
+
     Example:
-  
+
     ```javascript
     import { set } from '@ember/object';
     import { collect } from '@ember/object/computed';
-  
+
     class Hamster {
       @collect('hat', 'shirt') clothes;
     }
-  
+
     let hamster = new Hamster();
-  
+
     hamster.clothes; // [null, null]
-  
+
     set(hamster, 'hat', 'Camp Hat');
     set(hamster, 'shirt', 'Camp Shirt');
     hamster.clothes; // ['Camp Hat', 'Camp Shirt']
     ```
-  
+
     Classic Class Example:
-  
+
     ```javascript
     import EmberObject, { set } from '@ember/object';
     import { collect } from '@ember/object/computed';
-  
+
     let Hamster = EmberObject.extend({
       clothes: collect('hat', 'shirt')
     });
-  
+
     let hamster = Hamster.create();
-  
+
     hamster.clothes; // [null, null]
-  
+
     set(hamster, 'hat', 'Camp Hat');
     set(hamster, 'shirt', 'Camp Shirt');
     hamster.clothes; // ['Camp Hat', 'Camp Shirt']
     ```
-  
+
     @method collect
     @for @ember/object/computed
     @static
@@ -40538,40 +40538,40 @@ define("@ember/object/lib/computed/reduce_computed_macros", ["exports", "@ember/
     A computed property which returns a new array with all the properties from the
     first dependent array sorted based on a property or sort function. The sort
     macro can be used in two different ways:
-  
+
     1. By providing a sort callback function
     2. By providing an array of keys to sort the array
-  
+
     In the first form, the callback method you provide should have the following
     signature:
-  
+
     ```javascript
     function sortCallback(itemA, itemB);
     ```
-  
+
     - `itemA` the first item to compare.
     - `itemB` the second item to compare.
-  
+
     This function should return negative number (e.g. `-1`) when `itemA` should
     come before `itemB`. It should return positive number (e.g. `1`) when `itemA`
     should come after `itemB`. If the `itemA` and `itemB` are equal this function
     should return `0`.
-  
+
     Therefore, if this function is comparing some numeric values, simple `itemA -
     itemB` or `itemA.get( 'foo' ) - itemB.get( 'foo' )` can be used instead of
     series of `if`.
-  
+
     Example:
-  
+
     ```javascript
     import { set } from '@ember/object';
     import { sort } from '@ember/object/computed';
-  
+
     class ToDoList {
       constructor(todos) {
         set(this, 'todos', todos);
       }
-  
+
       // using a custom sort function
       @sort('todos', function(a, b){
         if (a.priority > b.priority) {
@@ -40579,27 +40579,27 @@ define("@ember/object/lib/computed/reduce_computed_macros", ["exports", "@ember/
         } else if (a.priority < b.priority) {
           return -1;
         }
-  
+
         return 0;
       })
       priorityTodos;
     }
-  
+
     let todoList = new ToDoList([
       { name: 'Unit Test', priority: 2 },
       { name: 'Documentation', priority: 3 },
       { name: 'Release', priority: 1 }
     ]);
-  
+
     todoList.priorityTodos; // [{ name:'Release', priority:1 }, { name:'Unit Test', priority:2 }, { name:'Documentation', priority:3 }]
     ```
-  
+
     Classic Class Example:
-  
+
     ```javascript
     import EmberObject from '@ember/object';
     import { sort } from '@ember/object/computed';
-  
+
     let ToDoList = EmberObject.extend({
       // using a custom sort function
       priorityTodos: sort('todos', function(a, b){
@@ -40608,11 +40608,11 @@ define("@ember/object/lib/computed/reduce_computed_macros", ["exports", "@ember/
         } else if (a.priority < b.priority) {
           return -1;
         }
-  
+
         return 0;
       })
     });
-  
+
     let todoList = ToDoList.create({
       todos: [
         { name: 'Unit Test', priority: 2 },
@@ -40620,25 +40620,25 @@ define("@ember/object/lib/computed/reduce_computed_macros", ["exports", "@ember/
         { name: 'Release', priority: 1 }
       ]
     });
-  
+
     todoList.priorityTodos; // [{ name:'Release', priority:1 }, { name:'Unit Test', priority:2 }, { name:'Documentation', priority:3 }]
     ```
-  
+
     You can also optionally pass an array of additional dependent keys as the
     second parameter, if your sort function is dependent on additional values that
     could changes:
-  
+
     ```js
     import EmberObject, { set } from '@ember/object';
     import { sort } from '@ember/object/computed';
-  
+
     class ToDoList {
       sortKey = 'priority';
-  
+
       constructor(todos) {
         set(this, 'todos', todos);
       }
-  
+
       // using a custom sort function
       @sort('todos', ['sortKey'], function(a, b){
         if (a[this.sortKey] > b[this.sortKey]) {
@@ -40646,52 +40646,52 @@ define("@ember/object/lib/computed/reduce_computed_macros", ["exports", "@ember/
         } else if (a[this.sortKey] < b[this.sortKey]) {
           return -1;
         }
-  
+
         return 0;
       })
       sortedTodos;
     });
-  
+
     let todoList = new ToDoList([
       { name: 'Unit Test', priority: 2 },
       { name: 'Documentation', priority: 3 },
       { name: 'Release', priority: 1 }
     ]);
-  
+
     todoList.priorityTodos; // [{ name:'Release', priority:1 }, { name:'Unit Test', priority:2 }, { name:'Documentation', priority:3 }]
     ```
-  
+
     In the second form, you should provide the key of the array of sort values as
     the second parameter:
-  
+
     ```javascript
     import { set } from '@ember/object';
     import { sort } from '@ember/object/computed';
-  
+
     class ToDoList {
       constructor(todos) {
         set(this, 'todos', todos);
       }
-  
+
       // using standard ascending sort
       todosSorting = ['name'];
       @sort('todos', 'todosSorting') sortedTodos;
-  
+
       // using descending sort
       todosSortingDesc = ['name:desc'];
       @sort('todos', 'todosSortingDesc') sortedTodosDesc;
     }
-  
+
     let todoList = new ToDoList([
       { name: 'Unit Test', priority: 2 },
       { name: 'Documentation', priority: 3 },
       { name: 'Release', priority: 1 }
     ]);
-  
+
     todoList.sortedTodos; // [{ name:'Documentation', priority:3 }, { name:'Release', priority:1 }, { name:'Unit Test', priority:2 }]
     todoList.sortedTodosDesc; // [{ name:'Unit Test', priority:2 }, { name:'Release', priority:1 }, { name:'Documentation', priority:3 }]
     ```
-  
+
     @method sort
     @for @ember/object/computed
     @static
@@ -40833,17 +40833,17 @@ define("@ember/polyfills/lib/assign", ["exports"], function (_exports) {
 
   /**
     Copy properties from a source object to a target object. Source arguments remain unchanged.
-  
+
     ```javascript
     import { assign } from '@ember/polyfills';
-  
+
     var a = { first: 'Yehuda' };
     var b = { last: 'Katz' };
     var c = { company: 'Other Company' };
     var d = { company: 'Tilde Inc.' };
     assign(a, b, c, d); // a === { first: 'Yehuda', last: 'Katz', company: 'Tilde Inc.' };
     ```
-  
+
     @method assign
     @for @ember/polyfills
     @param {Object} target The object to assign into
@@ -40893,16 +40893,16 @@ define("@ember/polyfills/lib/merge", ["exports", "@ember/debug"], function (_exp
 
   /**
     Merge the contents of two objects together into the first object.
-  
+
     ```javascript
     import { merge } from '@ember/polyfills';
-  
+
     merge({ first: 'Tom' }, { last: 'Dale' }); // { first: 'Tom', last: 'Dale' }
     var a = { first: 'Yehuda' };
     var b = { last: 'Katz' };
     merge(a, b); // a == { first: 'Yehuda', last: 'Katz' }, b == { last: 'Katz' }
     ```
-  
+
     @method merge
     @static
     @for @ember/polyfills
@@ -41017,7 +41017,7 @@ define("@ember/runloop/index", ["exports", "@ember/debug", "@ember/-internals/er
     are flushed at the end of the RunLoop. You can define your own queues by
     simply adding the queue name to this array. Normally you should not need
     to inspect or modify this property.
-  
+
     @property queues
     @type Array
     @default ['actions', 'destroy']
@@ -41051,15 +41051,15 @@ define("@ember/runloop/index", ["exports", "@ember/debug", "@ember/-internals/er
     Runs the passed target and method inside of a RunLoop, ensuring any
     deferred actions including bindings and views updates are flushed at the
     end.
-  
+
     Normally you should not need to invoke this method yourself. However if
     you are implementing raw event handlers when interfacing with other
     libraries or plugins, you should probably wrap all of your code inside this
     call.
-  
+
     ```javascript
     import { run } from '@ember/runloop';
-  
+
     run(function() {
       // code to be executed within a RunLoop
     });
@@ -41088,34 +41088,34 @@ define("@ember/runloop/index", ["exports", "@ember/debug", "@ember/-internals/er
     If no run-loop is present, it creates a new one. If a run loop is
     present it will queue itself to run on the existing run-loops action
     queue.
-  
+
     Please note: This is not for normal usage, and should be used sparingly.
-  
+
     If invoked when not within a run loop:
-  
+
     ```javascript
     import { join } from '@ember/runloop';
-  
+
     join(function() {
       // creates a new run-loop
     });
     ```
-  
+
     Alternatively, if called within an existing run loop:
-  
+
     ```javascript
     import { run, join } from '@ember/runloop';
-  
+
     run(function() {
       // creates a new run-loop
-  
+
       join(function() {
         // joins with the existing run-loop, and queues for invocation on
         // the existing run-loops action queue.
       });
     });
     ```
-  
+
     @method join
     @static
     @for @ember/runloop
@@ -41140,22 +41140,22 @@ define("@ember/runloop/index", ["exports", "@ember/debug", "@ember/-internals/er
     adding the execution of that function to the Ember run loop. This ability
     makes this method a great way to asynchronously integrate third-party libraries
     into your Ember application.
-  
+
     `bind` takes two main arguments, the desired context and the function to
     invoke in that context. Any additional arguments will be supplied as arguments
     to the function that is passed in.
-  
+
     Let's use the creation of a TinyMCE component as an example. Currently,
     TinyMCE provides a setup configuration option we can use to do some processing
     after the TinyMCE instance is initialized but before it is actually rendered.
     We can use that setup option to do some additional setup for our component.
     The component itself could look something like the following:
-  
+
     ```app/components/rich-text-editor.js
     import Component from '@ember/component';
     import { on } from '@ember/object/evented';
     import { bind } from '@ember/runloop';
-  
+
     export default Component.extend({
       initializeTinyMCE: on('didInsertElement', function() {
         tinymce.init({
@@ -41163,28 +41163,28 @@ define("@ember/runloop/index", ["exports", "@ember/debug", "@ember/-internals/er
           setup: bind(this, this.setupEditor)
         });
       }),
-  
+
       didInsertElement() {
         tinymce.init({
           selector: '#' + this.$().prop('id'),
           setup: bind(this, this.setupEditor)
         });
       }
-  
+
       setupEditor(editor) {
         this.set('editor', editor);
-  
+
         editor.on('change', function() {
           console.log('content changed!');
         });
       }
     });
     ```
-  
+
     In this example, we use `bind` to bind the setupEditor method to the
     context of the RichTextEditor component and to have the invocation of that
     method be safely handled and executed by the Ember run loop.
-  
+
     @method bind
     @static
     @for @ember/runloop
@@ -41234,15 +41234,15 @@ define("@ember/runloop/index", ["exports", "@ember/debug", "@ember/-internals/er
     Begins a new RunLoop. Any deferred actions invoked after the begin will
     be buffered until you invoke a matching call to `end()`. This is
     a lower-level way to use a RunLoop instead of using `run()`.
-  
+
     ```javascript
     import { begin, end } from '@ember/runloop';
-  
+
     begin();
     // code to be executed within a RunLoop
     end();
     ```
-  
+
     @method begin
     @static
     @for @ember/runloop
@@ -41260,15 +41260,15 @@ define("@ember/runloop/index", ["exports", "@ember/debug", "@ember/-internals/er
     Ends a RunLoop. This must be called sometime after you call
     `begin()` to flush any deferred actions. This is a lower-level way
     to use a RunLoop instead of using `run()`.
-  
+
     ```javascript
     import { begin, end } from '@ember/runloop';
-  
+
     begin();
     // code to be executed within a RunLoop
     end();
     ```
-  
+
     @method end
     @static
     @for @ember/runloop
@@ -41285,30 +41285,30 @@ define("@ember/runloop/index", ["exports", "@ember/debug", "@ember/-internals/er
     queue to be executed at the end of the RunLoop. If you have not already
     started a RunLoop when calling this method one will be started for you
     automatically.
-  
+
     At the end of a RunLoop, any methods scheduled in this way will be invoked.
     Methods will be invoked in an order matching the named queues defined in
     the `queues` property.
-  
+
     ```javascript
     import { schedule } from '@ember/runloop';
-  
+
     schedule('afterRender', this, function() {
       // this will be executed in the 'afterRender' queue
       console.log('scheduled on afterRender queue');
     });
-  
+
     schedule('actions', this, function() {
       // this will be executed in the 'actions' queue
       console.log('scheduled on actions queue');
     });
-  
+
     // Note the functions will be run in order based on the run queues order.
     // Output would be:
     //   scheduled on actions queue
     //   scheduled on afterRender queue
     ```
-  
+
     @method schedule
     @static
     @for @ember/runloop
@@ -41342,20 +41342,20 @@ define("@ember/runloop/index", ["exports", "@ember/debug", "@ember/-internals/er
     Invokes the passed target/method and optional arguments after a specified
     period of time. The last parameter of this method must always be a number
     of milliseconds.
-  
+
     You should use this method whenever you need to run some action after a
     period of time instead of using `setTimeout()`. This method will ensure that
     items that expire during the same script execution cycle all execute
     together, which is often more efficient than using a real setTimeout.
-  
+
     ```javascript
     import { later } from '@ember/runloop';
-  
+
     later(myContext, function() {
       // code here will execute within a RunLoop in about 500ms with this == myContext
     }, 500);
     ```
-  
+
     @method later
     @static
     @for @ember/runloop
@@ -41378,7 +41378,7 @@ define("@ember/runloop/index", ["exports", "@ember/debug", "@ember/-internals/er
   /**
    Schedule a function to run one time during the current RunLoop. This is equivalent
     to calling `scheduleOnce` with the "actions" queue.
-  
+
     @method once
     @static
     @for @ember/runloop
@@ -41400,62 +41400,62 @@ define("@ember/runloop/index", ["exports", "@ember/debug", "@ember/-internals/er
     Schedules a function to run one time in a given queue of the current RunLoop.
     Calling this method with the same queue/target/method combination will have
     no effect (past the initial call).
-  
+
     Note that although you can pass optional arguments these will not be
     considered when looking for duplicates. New arguments will replace previous
     calls.
-  
+
     ```javascript
     import { run, scheduleOnce } from '@ember/runloop';
-  
+
     function sayHi() {
       console.log('hi');
     }
-  
+
     run(function() {
       scheduleOnce('afterRender', myContext, sayHi);
       scheduleOnce('afterRender', myContext, sayHi);
       // sayHi will only be executed once, in the afterRender queue of the RunLoop
     });
     ```
-  
+
     Also note that for `scheduleOnce` to prevent additional calls, you need to
     pass the same function instance. The following case works as expected:
-  
+
     ```javascript
     function log() {
       console.log('Logging only once');
     }
-  
+
     function scheduleIt() {
       scheduleOnce('actions', myContext, log);
     }
-  
+
     scheduleIt();
     scheduleIt();
     ```
-  
+
     But this other case will schedule the function multiple times:
-  
+
     ```javascript
     import { scheduleOnce } from '@ember/runloop';
-  
+
     function scheduleIt() {
       scheduleOnce('actions', myContext, function() {
         console.log('Closure');
       });
     }
-  
+
     scheduleIt();
     scheduleIt();
-  
+
     // "Closure" will print twice, even though we're using `scheduleOnce`,
     // because the function we pass to it won't match the
     // previously scheduled operation.
     ```
-  
+
     Available queues, and their order, can be found at `queues`
-  
+
     @method scheduleOnce
     @static
     @for @ember/runloop
@@ -41479,40 +41479,40 @@ define("@ember/runloop/index", ["exports", "@ember/debug", "@ember/-internals/er
     Schedules an item to run from within a separate run loop, after
     control has been returned to the system. This is equivalent to calling
     `later` with a wait time of 1ms.
-  
+
     ```javascript
     import { next } from '@ember/runloop';
-  
+
     next(myContext, function() {
       // code to be executed in the next run loop,
       // which will be scheduled after the current one
     });
     ```
-  
+
     Multiple operations scheduled with `next` will coalesce
     into the same later run loop, along with any other operations
     scheduled by `later` that expire right around the same
     time that `next` operations will fire.
-  
+
     Note that there are often alternatives to using `next`.
     For instance, if you'd like to schedule an operation to happen
     after all DOM element operations have completed within the current
     run loop, you can make use of the `afterRender` run loop queue (added
     by the `ember-views` package, along with the preceding `render` queue
     where all the DOM element operations happen).
-  
+
     Example:
-  
+
     ```app/components/my-component.js
     import Component from '@ember/component';
     import { scheduleOnce } from '@ember/runloop';
-  
+
     export Component.extend({
       didInsertElement() {
         this._super(...arguments);
         scheduleOnce('afterRender', this, 'processChildElements');
       },
-  
+
       processChildElements() {
         // ... do something with component's child component
         // elements after they've finished rendering, which
@@ -41522,18 +41522,18 @@ define("@ember/runloop/index", ["exports", "@ember/debug", "@ember/-internals/er
       }
     });
     ```
-  
+
     One benefit of the above approach compared to using `next` is
     that you will be able to perform DOM/CSS operations before unprocessed
     elements are rendered to the screen, which may prevent flickering or
     other artifacts caused by delaying processing until after rendering.
-  
+
     The other major benefit to the above approach is that `next`
     introduces an element of non-determinism, which can make things much
     harder to test, due to its reliance on `setTimeout`; it's much harder
     to guarantee the order of scheduled operations when they are scheduled
     outside of the current run loop, i.e. with `next`.
-  
+
     @method next
     @static
     @for @ember/runloop
@@ -41555,7 +41555,7 @@ define("@ember/runloop/index", ["exports", "@ember/debug", "@ember/-internals/er
     Cancels a scheduled item. Must be a value returned by `later()`,
     `once()`, `scheduleOnce()`, `next()`, `debounce()`, or
     `throttle()`.
-  
+
     ```javascript
     import {
       next,
@@ -41566,51 +41566,51 @@ define("@ember/runloop/index", ["exports", "@ember/debug", "@ember/-internals/er
       throttle,
       debounce
     } from '@ember/runloop';
-  
+
     let runNext = next(myContext, function() {
       // will not be executed
     });
-  
+
     cancel(runNext);
-  
+
     let runLater = later(myContext, function() {
       // will not be executed
     }, 500);
-  
+
     cancel(runLater);
-  
+
     let runScheduleOnce = scheduleOnce('afterRender', myContext, function() {
       // will not be executed
     });
-  
+
     cancel(runScheduleOnce);
-  
+
     let runOnce = once(myContext, function() {
       // will not be executed
     });
-  
+
     cancel(runOnce);
-  
+
     let throttle = throttle(myContext, function() {
       // will not be executed
     }, 1, false);
-  
+
     cancel(throttle);
-  
+
     let debounce = debounce(myContext, function() {
       // will not be executed
     }, 1);
-  
+
     cancel(debounce);
-  
+
     let debounceImmediate = debounce(myContext, function() {
       // will be executed since we passed in true (immediate)
     }, 100, true);
-  
+
     // the 100ms delay until this method can be called again will be canceled
     cancel(debounceImmediate);
     ```
-  
+
     @method cancel
     @static
     @for @ember/runloop
@@ -41628,61 +41628,61 @@ define("@ember/runloop/index", ["exports", "@ember/debug", "@ember/-internals/er
     with no additional debounce calls. If `debounce` is called again before
     the specified time has elapsed, the timer is reset and the entire period
     must pass again before the target method is called.
-  
+
     This method should be used when an event may be called multiple times
     but the action should only be called once when the event is done firing.
     A common example is for scroll events where you only want updates to
     happen once scrolling has ceased.
-  
+
     ```javascript
     import { debounce } from '@ember/runloop';
-  
+
     function whoRan() {
       console.log(this.name + ' ran.');
     }
-  
+
     let myContext = { name: 'debounce' };
-  
+
     debounce(myContext, whoRan, 150);
-  
+
     // less than 150ms passes
     debounce(myContext, whoRan, 150);
-  
+
     // 150ms passes
     // whoRan is invoked with context myContext
     // console logs 'debounce ran.' one time.
     ```
-  
+
     Immediate allows you to run the function immediately, but debounce
     other calls for this function until the wait time has elapsed. If
     `debounce` is called again before the specified time has elapsed,
     the timer is reset and the entire period must pass again before
     the method can be called again.
-  
+
     ```javascript
     import { debounce } from '@ember/runloop';
-  
+
     function whoRan() {
       console.log(this.name + ' ran.');
     }
-  
+
     let myContext = { name: 'debounce' };
-  
+
     debounce(myContext, whoRan, 150, true);
-  
+
     // console logs 'debounce ran.' one time immediately.
     // 100ms passes
     debounce(myContext, whoRan, 150, true);
-  
+
     // 150ms passes and nothing else is logged to the console and
     // the debouncee is no longer being watched
     debounce(myContext, whoRan, 150, true);
-  
+
     // console logs 'debounce ran.' one time immediately.
     // 150ms passes and nothing else is logged to the console and
     // the debouncee is no longer being watched
     ```
-  
+
     @method debounce
     @static
     @for @ember/runloop
@@ -41705,32 +41705,32 @@ define("@ember/runloop/index", ["exports", "@ember/debug", "@ember/-internals/er
   /**
     Ensure that the target method is never called more frequently than
     the specified spacing period. The target method is called immediately.
-  
+
     ```javascript
     import { throttle } from '@ember/runloop';
-  
+
     function whoRan() {
       console.log(this.name + ' ran.');
     }
-  
+
     let myContext = { name: 'throttle' };
-  
+
     throttle(myContext, whoRan, 150);
     // whoRan is invoked with context myContext
     // console logs 'throttle ran.'
-  
+
     // 50ms passes
     throttle(myContext, whoRan, 150);
-  
+
     // 50ms passes
     throttle(myContext, whoRan, 150);
-  
+
     // 150ms passes
     throttle(myContext, whoRan, 150);
     // whoRan is invoked with context myContext
     // console logs 'throttle ran.'
     ```
-  
+
     @method throttle
     @static
     @for @ember/runloop
@@ -41768,41 +41768,41 @@ define("@ember/service/index", ["exports", "@ember/-internals/runtime", "@ember/
   /**
     Creates a property that lazily looks up a service in the container. There are
     no restrictions as to what objects a service can be injected into.
-  
+
     Example:
-  
+
     ```app/routes/application.js
     import Route from '@ember/routing/route';
     import { inject as service } from '@ember/service';
-  
+
     export default class ApplicationRoute extends Route {
       @service('auth') authManager;
-  
+
       model() {
         return this.authManager.findCurrentUser();
       }
     }
     ```
-  
+
     Classic Class Example:
-  
+
     ```app/routes/application.js
     import Route from '@ember/routing/route';
     import { inject as service } from '@ember/service';
-  
+
     export default Route.extend({
       authManager: service('auth'),
-  
+
       model() {
         return this.get('authManager').findCurrentUser();
       }
     });
     ```
-  
+
     This example will create an `authManager` property on the application route
     that looks up the `auth` service in the container, making it easily accessible
     in the `model` hook.
-  
+
     @method inject
     @static
     @since 1.10.0
@@ -41900,7 +41900,7 @@ define("@ember/string/index", ["exports", "@ember/string/lib/string_registry", "
     Defines string helper methods including string formatting and localization.
     Unless `EmberENV.EXTEND_PROTOTYPES.String` is `false` these methods will also be
     added to the `String.prototype` as well.
-  
+
     @class String
     @public
   */
@@ -41918,23 +41918,23 @@ define("@ember/string/index", ["exports", "@ember/string/lib/string_registry", "
   /**
     Formats the passed string, but first looks up the string in the localized
     strings hash. This is a convenient way to localize text.
-  
+
     Note that it is traditional but not required to prefix localized string
     keys with an underscore or other character so you can easily identify
     localized strings.
-  
+
     ```javascript
     import { loc } from '@ember/string';
-  
+
     Ember.STRINGS = {
       '_Hello World': 'Bonjour le monde',
       '_Hello %@ %@': 'Bonjour %@ %@'
     };
-  
+
     loc("_Hello World");  // 'Bonjour le monde';
     loc("_Hello %@ %@", ["John", "Smith"]);  // "Bonjour John Smith";
     ```
-  
+
     @method loc
     @param {String} str The string to format
     @param {Array} formats Optional array of parameters to interpolate into string.
@@ -41955,19 +41955,19 @@ define("@ember/string/index", ["exports", "@ember/string/lib/string_registry", "
     Splits a string into separate units separated by spaces, eliminating any
     empty strings in the process. This is a convenience method for split that
     is mostly useful when applied to the `String.prototype`.
-  
+
     ```javascript
     import { w } from '@ember/string';
-  
+
     w("alpha beta gamma").forEach(function(key) {
       console.log(key);
     });
-  
+
     // > alpha
     // > beta
     // > gamma
     ```
-  
+
     @method w
     @param {String} str The string to split
     @return {Array} array containing the split strings
@@ -41980,16 +41980,16 @@ define("@ember/string/index", ["exports", "@ember/string/lib/string_registry", "
   }
   /**
     Converts a camelized string into all lower case separated by underscores.
-  
+
     ```javascript
     import { decamelize } from '@ember/string';
-  
+
     decamelize('innerHTML');          // 'inner_html'
     decamelize('action_name');        // 'action_name'
     decamelize('css-class-name');     // 'css-class-name'
     decamelize('my favorite items');  // 'my favorite items'
     ```
-  
+
     @method decamelize
     @param {String} str The string to decamelize.
     @return {String} the decamelized string.
@@ -42002,17 +42002,17 @@ define("@ember/string/index", ["exports", "@ember/string/lib/string_registry", "
   }
   /**
     Replaces underscores, spaces, or camelCase with dashes.
-  
+
     ```javascript
     import { dasherize } from '@ember/string';
-  
+
     dasherize('innerHTML');                // 'inner-html'
     dasherize('action_name');              // 'action-name'
     dasherize('css-class-name');           // 'css-class-name'
     dasherize('my favorite items');        // 'my-favorite-items'
     dasherize('privateDocs/ownerInvoice';  // 'private-docs/owner-invoice'
     ```
-  
+
     @method dasherize
     @param {String} str The string to dasherize.
     @return {String} the dasherized string.
@@ -42025,10 +42025,10 @@ define("@ember/string/index", ["exports", "@ember/string/lib/string_registry", "
   }
   /**
     Returns the lowerCamelCase form of a string.
-  
+
     ```javascript
     import { camelize } from '@ember/string';
-  
+
     camelize('innerHTML');                   // 'innerHTML'
     camelize('action_name');                 // 'actionName'
     camelize('css-class-name');              // 'cssClassName'
@@ -42036,7 +42036,7 @@ define("@ember/string/index", ["exports", "@ember/string/lib/string_registry", "
     camelize('My Favorite Items');           // 'myFavoriteItems'
     camelize('private-docs/owner-invoice');  // 'privateDocs/ownerInvoice'
     ```
-  
+
     @method camelize
     @param {String} str The string to camelize.
     @return {String} the camelized string.
@@ -42049,17 +42049,17 @@ define("@ember/string/index", ["exports", "@ember/string/lib/string_registry", "
   }
   /**
     Returns the UpperCamelCase form of a string.
-  
+
     ```javascript
     import { classify } from '@ember/string';
-  
+
     classify('innerHTML');                   // 'InnerHTML'
     classify('action_name');                 // 'ActionName'
     classify('css-class-name');              // 'CssClassName'
     classify('my favorite items');           // 'MyFavoriteItems'
     classify('private-docs/owner-invoice');  // 'PrivateDocs/OwnerInvoice'
     ```
-  
+
     @method classify
     @param {String} str the string to classify
     @return {String} the classified string
@@ -42073,17 +42073,17 @@ define("@ember/string/index", ["exports", "@ember/string/lib/string_registry", "
   /**
     More general than decamelize. Returns the lower\_case\_and\_underscored
     form of a string.
-  
+
     ```javascript
     import { underscore } from '@ember/string';
-  
+
     underscore('innerHTML');                 // 'inner_html'
     underscore('action_name');               // 'action_name'
     underscore('css-class-name');            // 'css_class_name'
     underscore('my favorite items');         // 'my_favorite_items'
     underscore('privateDocs/ownerInvoice');  // 'private_docs/owner_invoice'
     ```
-  
+
     @method underscore
     @param {String} str The string to underscore.
     @return {String} the underscored string.
@@ -42096,17 +42096,17 @@ define("@ember/string/index", ["exports", "@ember/string/lib/string_registry", "
   }
   /**
     Returns the Capitalized form of a string
-  
+
     ```javascript
     import { capitalize } from '@ember/string';
-  
+
     capitalize('innerHTML')                 // 'InnerHTML'
     capitalize('action_name')               // 'Action_name'
     capitalize('css-class-name')            // 'Css-class-name'
     capitalize('my favorite items')         // 'My favorite items'
     capitalize('privateDocs/ownerInvoice'); // 'PrivateDocs/ownerInvoice'
     ```
-  
+
     @method capitalize
     @param {String} str The string to capitalize.
     @return {String} The capitalized string.
@@ -51815,7 +51815,7 @@ define("@glimmer/runtime", ["exports", "@glimmer/util", "@glimmer/reference", "@
   }
   /*
     The calling convention is:
-  
+
     * 0-N block arguments at the bottom
     * 0-N positional arguments next (left-to-right)
     * 0-N named arguments next
@@ -58145,7 +58145,7 @@ define("ember-babel", ["exports"], function (_exports) {
     Differs from default implementation by checking for _any_ `Reflect.construct`
     (the default implementation tries to ensure that `Reflect.construct` is truly
     the native one).
-  
+
     Original source: https://github.com/babel/babel/blob/v7.9.2/packages/babel-helpers/src/helpers.js#L738-L757
   */
 
@@ -58269,7 +58269,7 @@ define("ember-testing/lib/adapters/adapter", ["exports", "@ember/-internals/runt
   /**
     The primary purpose of this class is to create hooks that can be implemented
     by an adapter for various test frameworks.
-  
+
     @class TestAdapter
     @public
   */
@@ -58331,7 +58331,7 @@ define("ember-testing/lib/adapters/qunit", ["exports", "@ember/-internals/utils"
   /**
     This class implements the methods defined by TestAdapter for the
     QUnit testing framework.
-  
+
     @class QUnitAdapter
     @namespace Ember.Test
     @extends TestAdapter
@@ -58755,15 +58755,15 @@ define("ember-testing/lib/helpers/click", ["exports", "ember-testing/lib/events"
   /**
     Clicks an element and triggers any actions triggered by the element's `click`
     event.
-  
+
     Example:
-  
+
     ```javascript
     click('.some-jQuery-selector').then(function() {
       // assert something
     });
     ```
-  
+
     @method click
     @param {String} selector jQuery selector for finding element on the DOM
     @param {Object} context A DOM Element, Document, or jQuery to use as context
@@ -58794,17 +58794,17 @@ define("ember-testing/lib/helpers/current_path", ["exports", "@ember/-internals/
 
   /**
     Returns the current path.
-  
+
   Example:
-  
+
   ```javascript
   function validateURL() {
     equal(currentPath(), 'some.path.index', "correct path was transitioned into.");
   }
-  
+
   click('#some-link-id').then(validateURL);
   ```
-  
+
   @method currentPath
   @return {Object} The currently active path.
   @since 1.5.0
@@ -58830,16 +58830,16 @@ define("ember-testing/lib/helpers/current_route_name", ["exports", "@ember/-inte
 
   /**
     Returns the currently active route name.
-  
+
   Example:
-  
+
   ```javascript
   function validateRouteName() {
     equal(currentRouteName(), 'some.path', "correct route was transitioned into.");
   }
   visit('/some/path').then(validateRouteName)
   ```
-  
+
   @method currentRouteName
   @return {Object} The name of the currently active route.
   @since 1.5.0
@@ -58865,17 +58865,17 @@ define("ember-testing/lib/helpers/current_url", ["exports", "@ember/-internals/m
 
   /**
     Returns the current URL.
-  
+
   Example:
-  
+
   ```javascript
   function validateURL() {
     equal(currentURL(), '/some/path', "correct URL was transitioned into.");
   }
-  
+
   click('#some-link-id').then(validateURL);
   ```
-  
+
   @method currentURL
   @return {Object} The currently active URL.
   @since 1.5.0
@@ -58901,15 +58901,15 @@ define("ember-testing/lib/helpers/fill_in", ["exports", "ember-testing/lib/event
 
   /**
     Fills in an input element with some text.
-  
+
     Example:
-  
+
     ```javascript
     fillIn('#email', 'you@example.com').then(function() {
       // assert something
     });
     ```
-  
+
     @method fillIn
     @param {String} selector jQuery selector finding an input element on the DOM
     to fill text with
@@ -58956,19 +58956,19 @@ define("ember-testing/lib/helpers/find", ["exports", "@ember/-internals/metal",
   /**
     Finds an element in the context of the app's container element. A simple alias
     for `app.$(selector)`.
-  
+
     Example:
-  
+
     ```javascript
     var $el = find('.my-selector');
     ```
-  
+
     With the `context` param:
-  
+
     ```javascript
     var $el = find('.my-selector', '.parent-element-class');
     ```
-  
+
     @method find
     @param {String} selector jQuery selector for element lookup
     @param {String} [context] (optional) jQuery selector that will limit the selector
@@ -59001,19 +59001,19 @@ define("ember-testing/lib/helpers/find_with_assert", ["exports"], function (_exp
 
   /**
     Like `find`, but throws an error if the element selector returns no results.
-  
+
     Example:
-  
+
     ```javascript
     var $el = findWithAssert('.doesnt-exist'); // throws error
     ```
-  
+
     With the `context` param:
-  
+
     ```javascript
     var $el = findWithAssert('.selector-id', '.parent-element-class'); // assert will pass
     ```
-  
+
     @method findWithAssert
     @param {String} selector jQuery selector string for finding an element within
     the DOM
@@ -59094,7 +59094,7 @@ define("ember-testing/lib/helpers/pause_test", ["exports", "@ember/-internals/ru
   var resume;
   /**
    Resumes a test paused by `pauseTest`.
-  
+
    @method resumeTest
    @return {void}
    @public
@@ -59109,34 +59109,34 @@ define("ember-testing/lib/helpers/pause_test", ["exports", "@ember/-internals/ru
    Pauses the current test - this is useful for debugging while testing or for test-driving.
    It allows you to inspect the state of your application at any point.
    Example (The test will pause before clicking the button):
-  
+
    ```javascript
    visit('/')
    return pauseTest();
    click('.btn');
    ```
-  
+
    You may want to turn off the timeout before pausing.
-  
+
    qunit (timeout available to use as of 2.4.0):
-  
+
    ```
    visit('/');
    assert.timeout(0);
    return pauseTest();
    click('.btn');
    ```
-  
+
    mocha (timeout happens automatically as of ember-mocha v0.14.0):
-  
+
    ```
    visit('/');
    this.timeout(0);
    return pauseTest();
    click('.btn');
    ```
-  
-  
+
+
    @since 1.9.0
    @method pauseTest
    @return {Object} A promise that will never resolve
@@ -59232,15 +59232,15 @@ define("ember-testing/lib/helpers/visit", ["exports", "@ember/runloop"], functio
     Loads a route, sets up any controllers, and renders any templates associated
     with the route as though a real user had triggered the route change while
     using your app.
-  
+
     Example:
-  
+
     ```javascript
     visit('posts/index').then(function() {
       // assert something
     });
     ```
-  
+
     @method visit
     @param {String} url the name of the route
     @return {RSVP.Promise<undefined>}
@@ -59284,19 +59284,19 @@ define("ember-testing/lib/helpers/wait", ["exports", "ember-testing/lib/test/wai
   /**
     Causes the run loop to process any pending events. This is used to ensure that
     any async operations from other helpers (or your assertions) have been processed.
-  
+
     This is most often used as the return value for the helper functions (see 'click',
     'fillIn','visit',etc). However, there is a method to register a test helper which
     utilizes this method without the need to actually call `wait()` in your helpers.
-  
+
     The `wait` helper is built into `registerAsyncHelper` by default. You will not need
     to `return app.testHelpers.wait();` - the wait behavior is provided for you.
-  
+
     Example:
-  
+
     ```javascript
     import { registerAsyncHelper } from '@ember/test';
-  
+
     registerAsyncHelper('loginUser', function(app, username, password) {
       visit('secured/path/here')
         .fillIn('#username', username)
@@ -59304,7 +59304,7 @@ define("ember-testing/lib/helpers/wait", ["exports", "ember-testing/lib/test/wai
         .click('.submit');
     });
     ```
-  
+
     @method wait
     @param {Object} value The value to be returned.
     @return {RSVP.Promise<any>} Promise that resolves to the passed value.
@@ -59378,10 +59378,10 @@ define("ember-testing/lib/setup_for_testing", ["exports", "@ember/debug", "@embe
   /**
     Sets Ember up for testing. This is useful to perform
     basic setup steps in order to unit test.
-  
+
     Use `App.setupForTesting` to perform integration tests (full
     application testing).
-  
+
     @method setupForTesting
     @namespace Ember
     @since 1.5.0
@@ -59415,7 +59415,7 @@ define("ember-testing/lib/support", ["@ember/debug", "@ember/-internals/views",
     This method creates a checkbox and triggers the click event to fire the
     passed in handler. It is used to correct for a bug in older versions
     of jQuery (e.g 1.8.3).
-  
+
     @private
     @method testCheckboxClick
   */
@@ -59475,12 +59475,12 @@ define("ember-testing/lib/test", ["exports", "ember-testing/lib/test/helpers", "
 
   /**
     This is a container for an assortment of testing related functionality:
-  
+
     * Choose your default test adapter (for your framework of choice).
     * Register/Unregister additional test helpers.
     * Setup callbacks to be fired when the test helpers are injected into
       your application.
-  
+
     @class Test
     @namespace Ember
     @public
@@ -59507,17 +59507,17 @@ define("ember-testing/lib/test", ["exports", "ember-testing/lib/test/helpers", "
   /**
    Used to allow ember-testing to communicate with a specific testing
    framework.
-  
+
    You can manually set it before calling `App.setupForTesting()`.
-  
+
    Example:
-  
+
    ```javascript
    Ember.Test.adapter = MyCustomAdapter.create()
    ```
-  
+
    If you do not set it, ember-testing will default to `Ember.Test.QUnitAdapter`.
-  
+
    @public
    @for Ember.Test
    @property adapter
@@ -59593,32 +59593,32 @@ define("ember-testing/lib/test/helpers", ["exports", "ember-testing/lib/test/pro
   /**
     `registerHelper` is used to register a test helper that will be injected
     when `App.injectTestHelpers` is called.
-  
+
     The helper method will always be called with the current Application as
     the first parameter.
-  
+
     For example:
-  
+
     ```javascript
     import { registerHelper } from '@ember/test';
     import { run } from '@ember/runloop';
-  
+
     registerHelper('boot', function(app) {
       run(app, app.advanceReadiness);
     });
     ```
-  
+
     This helper can later be called without arguments because it will be
     called with `app` as the first parameter.
-  
+
     ```javascript
     import Application from '@ember/application';
-  
+
     App = Application.create();
     App.injectTestHelpers();
     boot();
     ```
-  
+
     @public
     @for @ember/test
     @static
@@ -59641,42 +59641,42 @@ define("ember-testing/lib/test/helpers", ["exports", "ember-testing/lib/test/pro
   /**
     `registerAsyncHelper` is used to register an async test helper that will be injected
     when `App.injectTestHelpers` is called.
-  
+
     The helper method will always be called with the current Application as
     the first parameter.
-  
+
     For example:
-  
+
     ```javascript
     import { registerAsyncHelper } from '@ember/test';
     import { run } from '@ember/runloop';
-  
+
     registerAsyncHelper('boot', function(app) {
       run(app, app.advanceReadiness);
     });
     ```
-  
+
     The advantage of an async helper is that it will not run
     until the last async helper has completed.  All async helpers
     after it will wait for it complete before running.
-  
-  
+
+
     For example:
-  
+
     ```javascript
     import { registerAsyncHelper } from '@ember/test';
-  
+
     registerAsyncHelper('deletePost', function(app, postId) {
       click('.delete-' + postId);
     });
-  
+
     // ... in your test
     visit('/post/2');
     deletePost(2);
     visit('/post/3');
     deletePost(3);
     ```
-  
+
     @public
     @for @ember/test
     @method registerAsyncHelper
@@ -59696,15 +59696,15 @@ define("ember-testing/lib/test/helpers", ["exports", "ember-testing/lib/test/pro
   }
   /**
     Remove a previously added helper method.
-  
+
     Example:
-  
+
     ```javascript
     import { unregisterHelper } from '@ember/test';
-  
+
     unregisterHelper('wait');
     ```
-  
+
     @public
     @method unregisterHelper
     @static
@@ -59731,25 +59731,25 @@ define("ember-testing/lib/test/on_inject_helpers", ["exports"], function (_expor
   /**
     Used to register callbacks to be fired whenever `App.injectTestHelpers`
     is called.
-  
+
     The callback will receive the current application as an argument.
-  
+
     Example:
-  
+
     ```javascript
     import $ from 'jquery';
-  
+
     Ember.Test.onInjectHelpers(function() {
       $(document).ajaxSend(function() {
         Test.pendingRequests++;
       });
-  
+
       $(document).ajaxComplete(function() {
         Test.pendingRequests--;
       });
     });
     ```
-  
+
     @public
     @for Ember.Test
     @method onInjectHelpers
@@ -59831,9 +59831,9 @@ define("ember-testing/lib/test/promise", ["exports", "@ember/-internals/runtime"
     This returns a thenable tailored for testing.  It catches failed
     `onSuccess` callbacks and invokes the `Ember.Test.adapter.exception`
     callback in the last chained then.
-  
+
     This method should be returned by async helpers such as `wait`.
-  
+
     @public
     @for Ember.Test
     @method promise
@@ -59852,7 +59852,7 @@ define("ember-testing/lib/test/promise", ["exports", "@ember/-internals/runtime"
     Replacement for `Ember.RSVP.resolve`
     The only difference is this uses
     an instance of `Ember.Test.Promise`
-  
+
     @public
     @for Ember.Test
     @method resolve
@@ -59929,27 +59929,27 @@ define("ember-testing/lib/test/waiters", ["exports"], function (_exports) {
      after each async helper (i.e. `click`, `andThen`, `visit`, etc) has executed,
      until the returning result is truthy. After the waiters finish, the next async helper
      is executed and the process repeats.
-  
+
      For example:
-  
+
      ```javascript
      import { registerWaiter } from '@ember/test';
-  
+
      registerWaiter(function() {
        return myPendingTransactions() === 0;
      });
      ```
      The `context` argument allows you to optionally specify the `this`
      with which your callback will be invoked.
-  
+
      For example:
-  
+
      ```javascript
      import { registerWaiter } from '@ember/test';
-  
+
      registerWaiter(MyDB, MyDB.hasPendingTransactions);
      ```
-  
+
      @public
      @for @ember/test
      @static
@@ -59975,7 +59975,7 @@ define("ember-testing/lib/test/waiters", ["exports"], function (_exports) {
   /**
      `unregisterWaiter` is used to unregister a callback that was
      registered with `registerWaiter`.
-  
+
      @public
      @for @ember/test
      @static
@@ -60009,10 +60009,10 @@ define("ember-testing/lib/test/waiters", ["exports"], function (_exports) {
     Iterates through each registered test waiter, and invokes
     its callback. If any waiter returns false, this method will return
     true indicating that the waiters have not settled yet.
-  
+
     This is generally used internally from the acceptance/integration test
     infrastructure.
-  
+
     @public
     @for @ember/test
     @static
@@ -60244,10 +60244,10 @@ define("ember/index", ["exports", "require", "@ember/-internals/environment", "n
     A function may be assigned to `Ember.onerror` to be called when Ember
     internals encounter an error. This is useful for specialized error handling
     and reporting code.
-  
+
     ```javascript
     import $ from 'jquery';
-  
+
     Ember.onerror = function(error) {
       $.ajax('/report-error', 'POST', {
         stack: error.stack,
@@ -60255,9 +60255,9 @@ define("ember/index", ["exports", "require", "@ember/-internals/environment", "n
       });
     };
     ```
-  
+
     Internally, `Ember.onerror` is used as Backburner's error handler.
-  
+
     @event onerror
     @for Ember
     @param {Exception} error the error object
@@ -60305,7 +60305,7 @@ define("ember/index", ["exports", "require", "@ember/-internals/environment", "n
 
   /**
     Namespace for injection helper methods.
-  
+
     @class inject
     @namespace Ember
     @static
@@ -60381,7 +60381,7 @@ define("ember/index", ["exports", "require", "@ember/-internals/environment", "n
     Defines the hash of localized strings for the current language. Used by
     the `String.loc` helper. To localize, add string values to this
     hash.
-  
+
     @property STRINGS
     @for Ember
     @type Object
@@ -60395,13 +60395,13 @@ define("ember/index", ["exports", "require", "@ember/-internals/environment", "n
   });
   /**
     Whether searching on the global for new Namespace instances is enabled.
-  
+
     This is only exported here as to not break any addons.  Given the new
     visit API, you will have issues if you treat this as a indicator of
     booted.
-  
+
     Internally this is only exposing a flag in Namespace.
-  
+
     @property BOOTED
     @for Ember
     @type Boolean
@@ -60458,7 +60458,7 @@ define("ember/index", ["exports", "require", "@ember/-internals/environment", "n
     Global hash of shared templates. This will automatically be populated
     by the build tools so that you can store your Handlebars templates in
     separate files that get loaded into JavaScript at buildtime.
-  
+
     @property TEMPLATES
     @for Ember
     @type Object
@@ -60473,7 +60473,7 @@ define("ember/index", ["exports", "require", "@ember/-internals/environment", "n
   });
   /**
     The semantic version
-  
+
     @property VERSION
     @type String
     @public
@@ -60563,7 +60563,7 @@ define("ember/index", ["exports", "require", "@ember/-internals/environment", "n
 
   /**
     Alias for jQuery
-  
+
     @for jquery
     @method $
     @static
@@ -61554,7 +61554,7 @@ define("router_js", ["exports", "@ember/polyfills", "rsvp", "route-recognizer"],
   }
   /**
     @private
-  
+
     Extracts query params from the end of an array
   **/
 
@@ -61582,7 +61582,7 @@ define("router_js", ["exports", "@ember/polyfills", "rsvp", "route-recognizer"],
   }
   /**
     @private
-  
+
     Coerces query param properties and array elements into strings.
   **/
 
@@ -61696,7 +61696,7 @@ define("router_js", ["exports", "@ember/polyfills", "rsvp", "route-recognizer"],
     explicitly via `abort` or by attempting another transition while a
     previous one is still underway. An aborted transition can also
     be `retry()`d later.
-  
+
     @class Transition
     @constructor
     @param {Object} router
@@ -62014,7 +62014,7 @@ define("router_js", ["exports", "@ember/polyfills", "rsvp", "route-recognizer"],
   }
   /**
     @private
-  
+
     Logs and returns an instance of TransitionAborted.
    */
 
@@ -64026,31 +64026,31 @@ define("rsvp", ["exports"], function (_exports) {
   /**
     `Promise.resolve` returns a promise that will become resolved with the
     passed `value`. It is shorthand for the following:
-  
+
     ```javascript
     import Promise from 'rsvp';
-  
+
     let promise = new Promise(function(resolve, reject){
       resolve(1);
     });
-  
+
     promise.then(function(value){
       // value === 1
     });
     ```
-  
+
     Instead of writing the above, your code now simply becomes the following:
-  
+
     ```javascript
     import Promise from 'rsvp';
-  
+
     let promise = RSVP.Promise.resolve(1);
-  
+
     promise.then(function(value){
       // value === 1
     });
     ```
-  
+
     @method resolve
     @for Promise
     @static
@@ -64465,43 +64465,43 @@ define("rsvp", ["exports"], function (_exports) {
     is fulfilled with an array of fulfillment values for the passed promises, or
     rejected with the reason of the first passed promise to be rejected. It casts all
     elements of the passed iterable to promises as it runs this algorithm.
-  
+
     Example:
-  
+
     ```javascript
     import Promise, { resolve } from 'rsvp';
-  
+
     let promise1 = resolve(1);
     let promise2 = resolve(2);
     let promise3 = resolve(3);
     let promises = [ promise1, promise2, promise3 ];
-  
+
     Promise.all(promises).then(function(array){
       // The array here would be [ 1, 2, 3 ];
     });
     ```
-  
+
     If any of the `promises` given to `RSVP.all` are rejected, the first promise
     that is rejected will be given as an argument to the returned promises's
     rejection handler. For example:
-  
+
     Example:
-  
+
     ```javascript
     import Promise, { resolve, reject } from 'rsvp';
-  
+
     let promise1 = resolve(1);
     let promise2 = reject(new Error("2"));
     let promise3 = reject(new Error("3"));
     let promises = [ promise1, promise2, promise3 ];
-  
+
     Promise.all(promises).then(function(array){
       // Code here never runs because there are rejected promises!
     }, function(error) {
       // error.message === "2"
     });
     ```
-  
+
     @method all
     @for Promise
     @param {Array} entries array of promises
@@ -64525,51 +64525,51 @@ define("rsvp", ["exports"], function (_exports) {
   /**
     `Promise.race` returns a new promise which is settled in the same way as the
     first passed promise to settle.
-  
+
     Example:
-  
+
     ```javascript
     import Promise from 'rsvp';
-  
+
     let promise1 = new Promise(function(resolve, reject){
       setTimeout(function(){
         resolve('promise 1');
       }, 200);
     });
-  
+
     let promise2 = new Promise(function(resolve, reject){
       setTimeout(function(){
         resolve('promise 2');
       }, 100);
     });
-  
+
     Promise.race([promise1, promise2]).then(function(result){
       // result === 'promise 2' because it was resolved before promise1
       // was resolved.
     });
     ```
-  
+
     `Promise.race` is deterministic in that only the state of the first
     settled promise matters. For example, even if other promises given to the
     `promises` array argument are resolved, but the first settled promise has
     become rejected before the other promises became fulfilled, the returned
     promise will become rejected:
-  
+
     ```javascript
     import Promise from 'rsvp';
-  
+
     let promise1 = new Promise(function(resolve, reject){
       setTimeout(function(){
         resolve('promise 1');
       }, 200);
     });
-  
+
     let promise2 = new Promise(function(resolve, reject){
       setTimeout(function(){
         reject(new Error('promise 2'));
       }, 100);
     });
-  
+
     Promise.race([promise1, promise2]).then(function(result){
       // Code here never runs
     }, function(reason){
@@ -64577,15 +64577,15 @@ define("rsvp", ["exports"], function (_exports) {
       // promise 1 became fulfilled
     });
     ```
-  
+
     An example real-world use case is implementing timeouts:
-  
+
     ```javascript
     import Promise from 'rsvp';
-  
+
     Promise.race([ajax('foo.json'), timeout(5000)])
     ```
-  
+
     @method race
     @for Promise
     @static
@@ -64616,35 +64616,35 @@ define("rsvp", ["exports"], function (_exports) {
   /**
     `Promise.reject` returns a promise rejected with the passed `reason`.
     It is shorthand for the following:
-  
+
     ```javascript
     import Promise from 'rsvp';
-  
+
     let promise = new Promise(function(resolve, reject){
       reject(new Error('WHOOPS'));
     });
-  
+
     promise.then(function(value){
       // Code here doesn't run because the promise is rejected!
     }, function(reason){
       // reason.message === 'WHOOPS'
     });
     ```
-  
+
     Instead of writing the above, your code now simply becomes the following:
-  
+
     ```javascript
     import Promise from 'rsvp';
-  
+
     let promise = Promise.reject(new Error('WHOOPS'));
-  
+
     promise.then(function(value){
       // Code here doesn't run because the promise is rejected!
     }, function(reason){
       // reason.message === 'WHOOPS'
     });
     ```
-  
+
     @method reject
     @for Promise
     @static
@@ -64678,66 +64678,66 @@ define("rsvp", ["exports"], function (_exports) {
     primary way of interacting with a promise is through its `then` method, which
     registers callbacks to receive either a promise’s eventual value or the reason
     why the promise cannot be fulfilled.
-  
+
     Terminology
     -----------
-  
+
     - `promise` is an object or function with a `then` method whose behavior conforms to this specification.
     - `thenable` is an object or function that defines a `then` method.
     - `value` is any legal JavaScript value (including undefined, a thenable, or a promise).
     - `exception` is a value that is thrown using the throw statement.
     - `reason` is a value that indicates why a promise was rejected.
     - `settled` the final resting state of a promise, fulfilled or rejected.
-  
+
     A promise can be in one of three states: pending, fulfilled, or rejected.
-  
+
     Promises that are fulfilled have a fulfillment value and are in the fulfilled
     state.  Promises that are rejected have a rejection reason and are in the
     rejected state.  A fulfillment value is never a thenable.
-  
+
     Promises can also be said to *resolve* a value.  If this value is also a
     promise, then the original promise's settled state will match the value's
     settled state.  So a promise that *resolves* a promise that rejects will
     itself reject, and a promise that *resolves* a promise that fulfills will
     itself fulfill.
-  
-  
+
+
     Basic Usage:
     ------------
-  
+
     ```js
     let promise = new Promise(function(resolve, reject) {
       // on success
       resolve(value);
-  
+
       // on failure
       reject(reason);
     });
-  
+
     promise.then(function(value) {
       // on fulfillment
     }, function(reason) {
       // on rejection
     });
     ```
-  
+
     Advanced Usage:
     ---------------
-  
+
     Promises shine when abstracting away asynchronous interactions such as
     `XMLHttpRequest`s.
-  
+
     ```js
     function getJSON(url) {
       return new Promise(function(resolve, reject){
         let xhr = new XMLHttpRequest();
-  
+
         xhr.open('GET', url);
         xhr.onreadystatechange = handler;
         xhr.responseType = 'json';
         xhr.setRequestHeader('Accept', 'application/json');
         xhr.send();
-  
+
         function handler() {
           if (this.readyState === this.DONE) {
             if (this.status === 200) {
@@ -64749,16 +64749,16 @@ define("rsvp", ["exports"], function (_exports) {
         };
       });
     }
-  
+
     getJSON('/posts.json').then(function(json) {
       // on fulfillment
     }, function(reason) {
       // on rejection
     });
     ```
-  
+
     Unlike callbacks, promises are great composable primitives.
-  
+
     ```js
     Promise.all([
       getJSON('/posts'),
@@ -64766,11 +64766,11 @@ define("rsvp", ["exports"], function (_exports) {
     ]).then(function(values){
       values[0] // => postsJSON
       values[1] // => commentsJSON
-  
+
       return values;
     });
     ```
-  
+
     @class Promise
     @public
     @param {function} resolver
@@ -64805,25 +64805,25 @@ define("rsvp", ["exports"], function (_exports) {
     /**
       `catch` is simply sugar for `then(undefined, onRejection)` which makes it the same
       as the catch block of a try/catch statement.
-    
+
       ```js
       function findAuthor(){
         throw new Error('couldn\'t find that author');
       }
-    
+
       // synchronous
       try {
         findAuthor();
       } catch(reason) {
         // something went wrong
       }
-    
+
       // async with promises
       findAuthor().catch(function(reason){
         // something went wrong
       });
       ```
-    
+
       @method catch
       @param {Function} onRejection
       @param {String} [label] optional string for labeling the promise.
@@ -64838,9 +64838,9 @@ define("rsvp", ["exports"], function (_exports) {
     /**
       `finally` will be invoked regardless of the promise's fate just as native
       try/catch/finally behaves
-    
+
       Synchronous example:
-    
+
       ```js
       findAuthor() {
         if (Math.random() > 0.5) {
@@ -64848,7 +64848,7 @@ define("rsvp", ["exports"], function (_exports) {
         }
         return new Author();
       }
-    
+
       try {
         return findAuthor(); // succeed or fail
       } catch(error) {
@@ -64858,9 +64858,9 @@ define("rsvp", ["exports"], function (_exports) {
         // doesn't affect the return value
       }
       ```
-    
+
       Asynchronous example:
-    
+
       ```js
       findAuthor().catch(function(reason){
         return findOtherAuthor();
@@ -64868,7 +64868,7 @@ define("rsvp", ["exports"], function (_exports) {
         // author was either found, or not
       });
       ```
-    
+
       @method finally
       @param {Function} callback
       @param {String} [label] optional string for labeling the promise.
@@ -64904,7 +64904,7 @@ define("rsvp", ["exports"], function (_exports) {
     The primary way of interacting with a promise is through its `then` method,
     which registers callbacks to receive either a promise's eventual value or the
     reason why the promise cannot be fulfilled.
-  
+
     ```js
     findUser().then(function(user){
       // user is available
@@ -64912,14 +64912,14 @@ define("rsvp", ["exports"], function (_exports) {
       // user is unavailable, and you are given the reason why
     });
     ```
-  
+
     Chaining
     --------
-  
+
     The return value of `then` is itself a promise.  This second, 'downstream'
     promise is resolved with the return value of the first promise's fulfillment
     or rejection handler, or rejected if the handler throws an exception.
-  
+
     ```js
     findUser().then(function (user) {
       return user.name;
@@ -64929,7 +64929,7 @@ define("rsvp", ["exports"], function (_exports) {
       // If `findUser` fulfilled, `userName` will be the user's name, otherwise it
       // will be `'default name'`
     });
-  
+
     findUser().then(function (user) {
       throw new Error('Found user, but still unhappy');
     }, function (reason) {
@@ -64942,7 +64942,7 @@ define("rsvp", ["exports"], function (_exports) {
     });
     ```
     If the downstream promise does not specify a rejection handler, rejection reasons will be propagated further downstream.
-  
+
     ```js
     findUser().then(function (user) {
       throw new PedagogicalException('Upstream error');
@@ -64954,15 +64954,15 @@ define("rsvp", ["exports"], function (_exports) {
       // The `PedgagocialException` is propagated all the way down to here
     });
     ```
-  
+
     Assimilation
     ------------
-  
+
     Sometimes the value you want to propagate to a downstream promise can only be
     retrieved asynchronously. This can be achieved by returning a promise in the
     fulfillment or rejection handler. The downstream promise will then be pending
     until the returned promise is settled. This is called *assimilation*.
-  
+
     ```js
     findUser().then(function (user) {
       return findCommentsByAuthor(user);
@@ -64970,9 +64970,9 @@ define("rsvp", ["exports"], function (_exports) {
       // The user's comments are now available
     });
     ```
-  
+
     If the assimliated promise rejects, then the downstream promise will also reject.
-  
+
     ```js
     findUser().then(function (user) {
       return findCommentsByAuthor(user);
@@ -64982,15 +64982,15 @@ define("rsvp", ["exports"], function (_exports) {
       // If `findCommentsByAuthor` rejects, we'll have the reason here
     });
     ```
-  
+
     Simple Example
     --------------
-  
+
     Synchronous Example
-  
+
     ```javascript
     let result;
-  
+
     try {
       result = findResult();
       // success
@@ -64998,9 +64998,9 @@ define("rsvp", ["exports"], function (_exports) {
       // failure
     }
     ```
-  
+
     Errback Example
-  
+
     ```js
     findResult(function(result, err){
       if (err) {
@@ -65010,9 +65010,9 @@ define("rsvp", ["exports"], function (_exports) {
       }
     });
     ```
-  
+
     Promise Example;
-  
+
     ```javascript
     findResult().then(function(result){
       // success
@@ -65020,15 +65020,15 @@ define("rsvp", ["exports"], function (_exports) {
       // failure
     });
     ```
-  
+
     Advanced Example
     --------------
-  
+
     Synchronous Example
-  
+
     ```javascript
     let author, books;
-  
+
     try {
       author = findAuthor();
       books  = findBooksByAuthor(author);
@@ -65037,19 +65037,19 @@ define("rsvp", ["exports"], function (_exports) {
       // failure
     }
     ```
-  
+
     Errback Example
-  
+
     ```js
-  
+
     function foundBooks(books) {
-  
+
     }
-  
+
     function failure(reason) {
-  
+
     }
-  
+
     findAuthor(function(author, err){
       if (err) {
         failure(err);
@@ -65074,9 +65074,9 @@ define("rsvp", ["exports"], function (_exports) {
       }
     });
     ```
-  
+
     Promise Example;
-  
+
     ```javascript
     findAuthor().
       then(findBooksByAuthor).
@@ -65086,7 +65086,7 @@ define("rsvp", ["exports"], function (_exports) {
       // something went wrong
     });
     ```
-  
+
     @method then
     @param {Function} onFulfillment
     @param {Function} onRejection
@@ -65138,87 +65138,87 @@ define("rsvp", ["exports"], function (_exports) {
     will return an `Promise`. You can use `denodeify` in Node.js or the
     browser when you'd prefer to use promises over using callbacks. For example,
     `denodeify` transforms the following:
-  
+
     ```javascript
     let fs = require('fs');
-  
+
     fs.readFile('myfile.txt', function(err, data){
       if (err) return handleError(err);
       handleData(data);
     });
     ```
-  
+
     into:
-  
+
     ```javascript
     let fs = require('fs');
     let readFile = denodeify(fs.readFile);
-  
+
     readFile('myfile.txt').then(handleData, handleError);
     ```
-  
+
     If the node function has multiple success parameters, then `denodeify`
     just returns the first one:
-  
+
     ```javascript
     let request = denodeify(require('request'));
-  
+
     request('http://example.com').then(function(res) {
       // ...
     });
     ```
-  
+
     However, if you need all success parameters, setting `denodeify`'s
     second parameter to `true` causes it to return all success parameters
     as an array:
-  
+
     ```javascript
     let request = denodeify(require('request'), true);
-  
+
     request('http://example.com').then(function(result) {
       // result[0] -> res
       // result[1] -> body
     });
     ```
-  
+
     Or if you pass it an array with names it returns the parameters as a hash:
-  
+
     ```javascript
     let request = denodeify(require('request'), ['res', 'body']);
-  
+
     request('http://example.com').then(function(result) {
       // result.res
       // result.body
     });
     ```
-  
+
     Sometimes you need to retain the `this`:
-  
+
     ```javascript
     let app = require('express')();
     let render = denodeify(app.render.bind(app));
     ```
-  
+
     The denodified function inherits from the original function. It works in all
     environments, except IE 10 and below. Consequently all properties of the original
     function are available to you. However, any properties you change on the
     denodeified function won't be changed on the original function. Example:
-  
+
     ```javascript
     let request = denodeify(require('request')),
         cookieJar = request.jar(); // <- Inheritance is used here
-  
+
     request('http://example.com', {jar: cookieJar}).then(function(res) {
       // cookieJar.cookies holds now the cookies returned by example.com
     });
     ```
-  
+
     Using `denodeify` makes it easier to compose asynchronous operations instead
     of using callbacks. For example, instead of:
-  
+
     ```javascript
     let fs = require('fs');
-  
+
     fs.readFile('myfile.txt', function(err, data){
       if (err) { ... } // Handle error
       fs.writeFile('myfile2.txt', data, function(err){
@@ -65227,14 +65227,14 @@ define("rsvp", ["exports"], function (_exports) {
       });
     });
     ```
-  
+
     you can chain the operations together using `then` from the returned promise:
-  
+
     ```javascript
     let fs = require('fs');
     let readFile = denodeify(fs.readFile);
     let writeFile = denodeify(fs.writeFile);
-  
+
     readFile('myfile.txt').then(function(data){
       return writeFile('myfile2.txt', data);
     }).then(function(){
@@ -65243,7 +65243,7 @@ define("rsvp", ["exports"], function (_exports) {
       // Handle error
     });
     ```
-  
+
     @method denodeify
     @public
     @static
@@ -65338,7 +65338,7 @@ define("rsvp", ["exports"], function (_exports) {
   }
   /**
     This is a convenient alias for `Promise.all`.
-  
+
     @method all
     @public
     @static
@@ -65423,7 +65423,7 @@ define("rsvp", ["exports"], function (_exports) {
   }
   /**
     This is a convenient alias for `Promise.race`.
-  
+
     @method race
     @public
     @static
@@ -65470,15 +65470,15 @@ define("rsvp", ["exports"], function (_exports) {
   /**
     `hash` is similar to `all`, but takes an object instead of an array
     for its `promises` argument.
-  
+
     Returns a promise that is fulfilled when all the given promises have been
     fulfilled, or rejected if any of them become rejected. The returned promise
     is fulfilled with a hash that has the same key names as the `promises` object
     argument. If any of the values in the object are not promises, they will
     simply be copied over to the fulfilled object.
-  
+
     Example:
-  
+
     ```javascript
     let promises = {
       myPromise: resolve(1),
@@ -65486,7 +65486,7 @@ define("rsvp", ["exports"], function (_exports) {
       theirPromise: resolve(3),
       notAPromise: 4
     };
-  
+
     hash(promises).then(function(hash){
       // hash here is an object that looks like:
       // {
@@ -65497,44 +65497,44 @@ define("rsvp", ["exports"], function (_exports) {
       // }
     });
     ```
-  
+
     If any of the `promises` given to `hash` are rejected, the first promise
     that is rejected will be given as the reason to the rejection handler.
-  
+
     Example:
-  
+
     ```javascript
     let promises = {
       myPromise: resolve(1),
       rejectedPromise: reject(new Error('rejectedPromise')),
       anotherRejectedPromise: reject(new Error('anotherRejectedPromise')),
     };
-  
+
     hash(promises).then(function(hash){
       // Code here never runs because there are rejected promises!
     }, function(reason) {
       // reason.message === 'rejectedPromise'
     });
     ```
-  
+
     An important note: `hash` is intended for plain JavaScript objects that
     are just a set of keys and values. `hash` will NOT preserve prototype
     chains.
-  
+
     Example:
-  
+
     ```javascript
     import { hash, resolve } from 'rsvp';
     function MyConstructor(){
       this.example = resolve('Example');
     }
-  
+
     MyConstructor.prototype = {
       protoProperty: resolve('Proto Property')
     };
-  
+
     let myObject = new MyConstructor();
-  
+
     hash(myObject).then(function(hash){
       // protoProperty will not be present, instead you will just have an
       // object that looks like:
@@ -65546,7 +65546,7 @@ define("rsvp", ["exports"], function (_exports) {
       // 'undefined' === typeof hash.protoProperty
     });
     ```
-  
+
     @method hash
     @public
     @static
@@ -65580,33 +65580,33 @@ define("rsvp", ["exports"], function (_exports) {
   /**
     `hashSettled` is similar to `allSettled`, but takes an object
     instead of an array for its `promises` argument.
-  
+
     Unlike `all` or `hash`, which implement a fail-fast method,
     but like `allSettled`, `hashSettled` waits until all the
     constituent promises have returned and then shows you all the results
     with their states and values/reasons. This is useful if you want to
     handle multiple promises' failure states together as a set.
-  
+
     Returns a promise that is fulfilled when all the given promises have been
     settled, or rejected if the passed parameters are invalid.
-  
+
     The returned promise is fulfilled with a hash that has the same key names as
     the `promises` object argument. If any of the values in the object are not
     promises, they will be copied over to the fulfilled object and marked with state
     'fulfilled'.
-  
+
     Example:
-  
+
     ```javascript
     import { hashSettled, resolve } from 'rsvp';
-  
+
     let promises = {
       myPromise: resolve(1),
       yourPromise: resolve(2),
       theirPromise: resolve(3),
       notAPromise: 4
     };
-  
+
     hashSettled(promises).then(function(hash){
       // hash here is an object that looks like:
       // {
@@ -65617,21 +65617,21 @@ define("rsvp", ["exports"], function (_exports) {
       // }
     });
     ```
-  
+
     If any of the `promises` given to `hash` are rejected, the state will
     be set to 'rejected' and the reason for rejection provided.
-  
+
     Example:
-  
+
     ```javascript
     import { hashSettled, reject, resolve } from 'rsvp';
-  
+
     let promises = {
       myPromise: resolve(1),
       rejectedPromise: reject(new Error('rejection')),
       anotherRejectedPromise: reject(new Error('more rejection')),
     };
-  
+
     hashSettled(promises).then(function(hash){
       // hash here is an object that looks like:
       // {
@@ -65643,26 +65643,26 @@ define("rsvp", ["exports"], function (_exports) {
       // and for anotherRejectedPromise, reason.message == 'more rejection'.
     });
     ```
-  
+
     An important note: `hashSettled` is intended for plain JavaScript objects that
     are just a set of keys and values. `hashSettled` will NOT preserve prototype
     chains.
-  
+
     Example:
-  
+
     ```javascript
     import Promise, { hashSettled, resolve } from 'rsvp';
-  
+
     function MyConstructor(){
       this.example = resolve('Example');
     }
-  
+
     MyConstructor.prototype = {
       protoProperty: Promise.resolve('Proto Property')
     };
-  
+
     let myObject = new MyConstructor();
-  
+
     hashSettled(myObject).then(function(hash){
       // protoProperty will not be present, instead you will just have an
       // object that looks like:
@@ -65674,7 +65674,7 @@ define("rsvp", ["exports"], function (_exports) {
       // 'undefined' === typeof hash.protoProperty
     });
     ```
-  
+
     @method hashSettled
     @public
     @for rsvp
@@ -65698,7 +65698,7 @@ define("rsvp", ["exports"], function (_exports) {
   /**
     `rethrow` will rethrow an error on the next turn of the JavaScript event
     loop in order to aid debugging.
-  
+
     Promises A+ specifies that any exceptions that occur with a promise must be
     caught by the promises implementation and bubbled to the last handler. For
     this reason, it is recommended that you always specify a second rejection
@@ -65706,18 +65706,18 @@ define("rsvp", ["exports"], function (_exports) {
     outside of the promise, so it bubbles up to your console if in the browser,
     or domain/cause uncaught exception in Node. `rethrow` will also throw the
     error again so the error can be handled by the promise per the spec.
-  
+
     ```javascript
     import { rethrow } from 'rsvp';
-  
+
     function throws(){
       throw new Error('Whoops!');
     }
-  
+
     let promise = new Promise(function(resolve, reject){
       throws();
     });
-  
+
     promise.catch(rethrow).then(function(){
       // Code here doesn't run because the promise became rejected due to an
       // error!
@@ -65725,11 +65725,11 @@ define("rsvp", ["exports"], function (_exports) {
       // handle the error here
     });
     ```
-  
+
     The 'Whoops' error will be thrown on the next turn of the event loop
     and you can watch for it in your console. You can also handle it using a
     rejection handler given to `.then` or `.catch` on the returned promise.
-  
+
     @method rethrow
     @public
     @static
@@ -65750,27 +65750,27 @@ define("rsvp", ["exports"], function (_exports) {
     `defer` returns an object similar to jQuery's `$.Deferred`.
     `defer` should be used when porting over code reliant on `$.Deferred`'s
     interface. New code should use the `Promise` constructor instead.
-  
+
     The object returned from `defer` is a plain object with three properties:
-  
+
     * promise - an `Promise`.
     * reject - a function that causes the `promise` property on this object to
       become rejected
     * resolve - a function that causes the `promise` property on this object to
       become fulfilled.
-  
+
     Example:
-  
+
      ```javascript
      let deferred = defer();
-  
+
      deferred.resolve("Success!");
-  
+
      deferred.promise.then(function(value){
        // value here is "Success!"
      });
      ```
-  
+
     @method defer
     @public
     @static
@@ -65827,62 +65827,62 @@ define("rsvp", ["exports"], function (_exports) {
     meaning that as soon as any promise resolves its value will be passed to `mapFn`.
     `map` returns a promise that will become fulfilled with the result of running
     `mapFn` on the values the promises become fulfilled with.
-  
+
     For example:
-  
+
     ```javascript
     import { map, resolve } from 'rsvp';
-  
+
     let promise1 = resolve(1);
     let promise2 = resolve(2);
     let promise3 = resolve(3);
     let promises = [ promise1, promise2, promise3 ];
-  
+
     let mapFn = function(item){
       return item + 1;
     };
-  
+
     map(promises, mapFn).then(function(result){
       // result is [ 2, 3, 4 ]
     });
     ```
-  
+
     If any of the `promises` given to `map` are rejected, the first promise
     that is rejected will be given as an argument to the returned promise's
     rejection handler. For example:
-  
+
     ```javascript
     import { map, reject, resolve } from 'rsvp';
-  
+
     let promise1 = resolve(1);
     let promise2 = reject(new Error('2'));
     let promise3 = reject(new Error('3'));
     let promises = [ promise1, promise2, promise3 ];
-  
+
     let mapFn = function(item){
       return item + 1;
     };
-  
+
     map(promises, mapFn).then(function(array){
       // Code here never runs because there are rejected promises!
     }, function(reason) {
       // reason.message === '2'
     });
     ```
-  
+
     `map` will also wait if a promise is returned from `mapFn`. For example,
     say you want to get all comments from a set of blog posts, but you need
     the blog posts first because they contain a url to those comments.
-  
+
     ```javscript
     import { map } from 'rsvp';
-  
+
     let mapFn = function(blogPost){
       // getComments does some ajax and returns an Promise that is fulfilled
       // with some comments data
       return getComments(blogPost.comments_url);
     };
-  
+
     // getBlogPosts does some ajax and returns an Promise that is fulfilled
     // with some blog post data
     map(getBlogPosts(), mapFn).then(function(comments){
@@ -65890,7 +65890,7 @@ define("rsvp", ["exports"], function (_exports) {
       // of all blog posts returned from getBlogPosts()
     });
     ```
-  
+
     @method map
     @public
     @static
@@ -65920,7 +65920,7 @@ define("rsvp", ["exports"], function (_exports) {
   }
   /**
     This is a convenient alias for `Promise.resolve`.
-  
+
     @method resolve
     @public
     @static
@@ -65938,7 +65938,7 @@ define("rsvp", ["exports"], function (_exports) {
   }
   /**
     This is a convenient alias for `Promise.reject`.
-  
+
     @method reject
     @public
     @static
@@ -65999,65 +65999,65 @@ define("rsvp", ["exports"], function (_exports) {
     resolves its value will be passed to `filterFn`. `filter` returns
     a promise that will become fulfilled with the result of running
     `filterFn` on the values the promises become fulfilled with.
-  
+
     For example:
-  
+
     ```javascript
     import { filter, resolve } from 'rsvp';
-  
+
     let promise1 = resolve(1);
     let promise2 = resolve(2);
     let promise3 = resolve(3);
-  
+
     let promises = [promise1, promise2, promise3];
-  
+
     let filterFn = function(item){
       return item > 1;
     };
-  
+
     filter(promises, filterFn).then(function(result){
       // result is [ 2, 3 ]
     });
     ```
-  
+
     If any of the `promises` given to `filter` are rejected, the first promise
     that is rejected will be given as an argument to the returned promise's
     rejection handler. For example:
-  
+
     ```javascript
     import { filter, reject, resolve } from 'rsvp';
-  
+
     let promise1 = resolve(1);
     let promise2 = reject(new Error('2'));
     let promise3 = reject(new Error('3'));
     let promises = [ promise1, promise2, promise3 ];
-  
+
     let filterFn = function(item){
       return item > 1;
     };
-  
+
     filter(promises, filterFn).then(function(array){
       // Code here never runs because there are rejected promises!
     }, function(reason) {
       // reason.message === '2'
     });
     ```
-  
+
     `filter` will also wait for any promises returned from `filterFn`.
     For instance, you may want to fetch a list of users then return a subset
     of those users based on some asynchronous operation:
-  
+
     ```javascript
     import { filter, resolve } from 'rsvp';
-  
+
     let alice = { name: 'alice' };
     let bob   = { name: 'bob' };
     let users = [ alice, bob ];
-  
+
     let promises = users.map(function(user){
       return resolve(user);
     });
-  
+
     let filterFn = function(user){
       // Here, Alice has permissions to create a blog post, but Bob does not.
       return getPrivilegesForUser(user).then(function(privs){
@@ -66071,7 +66071,7 @@ define("rsvp", ["exports"], function (_exports) {
       users[0] === bob;
     });
     ```
-  
+
     @method filter
     @public
     @static
@@ -66964,7 +66964,7 @@ require('ember');
     during a request to an external API. It indicates a generic error, and
     subclasses are used to indicate specific error states. The following
     subclasses are provided:
-  
+
     - `InvalidError`
     - `TimeoutError`
     - `AbortError`
@@ -66973,42 +66973,42 @@ require('ember');
     - `NotFoundError`
     - `ConflictError`
     - `ServerError`
-  
+
     To create a custom error to signal a specific error state in communicating
     with an external API, extend the `AdapterError`. For example, if the
     external API exclusively used HTTP `503 Service Unavailable` to indicate
     it was closed for maintenance:
-  
+
     ```app/adapters/maintenance-error.js
     import AdapterError from '@ember-data/adapter/error';
-  
+
     export default AdapterError.extend({ message: "Down for maintenance." });
     ```
-  
+
     This error would then be returned by an adapter's `handleResponse` method:
-  
+
     ```app/adapters/application.js
     import JSONAPIAdapter from '@ember-data/adapter/json-api';
     import MaintenanceError from './maintenance-error';
-  
+
     export default JSONAPIAdapter.extend({
       handleResponse(status) {
         if (503 === status) {
           return new MaintenanceError();
         }
-  
+
         return this._super(...arguments);
       }
     });
     ```
-  
+
     And can then be detected in an application and used to send the user to an
     `under-maintenance` route:
-  
+
     ```app/routes/application.js
     import Route from '@ember/routing/route';
     import MaintenanceError from '../adapters/maintenance-error';
-  
+
     export default Route.extend({
       actions: {
         error(error, transition) {
@@ -67016,13 +67016,13 @@ require('ember');
             this.transitionTo('under-maintenance');
             return;
           }
-  
+
           // ...other error handling logic
         }
       }
     });
     ```
-  
+
     @class AdapterError
   */
   function AdapterError(errors, message = 'Adapter operation failed') {
@@ -67079,31 +67079,31 @@ require('ember');
     from an adapter is rejected with a `InvalidError` the record will
     transition to the `invalid` state and the errors will be set to the
     `errors` property on the record.
-  
+
     For Ember Data to correctly map errors to their corresponding
     properties on the model, Ember Data expects each error to be
     a valid JSON-API error object with a `source/pointer` that matches
     the property name. For example, if you had a Post model that
     looked like this.
-  
+
     ```app/models/post.js
     import Model, { attr } from '@ember-data/model';
-  
+
     export default Model.extend({
       title: attr('string'),
       content: attr('string')
     });
     ```
-  
+
     To show an error from the server related to the `title` and
     `content` properties your adapter could return a promise that
     rejects with a `InvalidError` object that looks like this:
-  
+
     ```app/adapters/post.js
     import RSVP from 'RSVP';
     import RESTAdapter from '@ember-data/adapter/rest';
     import { InvalidError } from '@ember-data/adapter/error';
-  
+
     export default RESTAdapter.extend({
       updateRecord() {
         // Fictional adapter that always rejects
@@ -67120,13 +67120,13 @@ require('ember');
       }
     });
     ```
-  
+
     Your backend may use different property names for your records the
     store will attempt to extract and normalize the errors using the
     serializer's `extractErrors` method before the errors get added to
     the model. As a result, it is safe for the `InvalidError` to
     wrap the error payload unaltered.
-  
+
     @class InvalidError
     @extends AdapterError
   */
@@ -67138,15 +67138,15 @@ require('ember');
     A `TimeoutError` is used by an adapter to signal that a request
     to the external API has timed out. I.e. no response was received from
     the external API within an allowed time period.
-  
+
     An example use case would be to warn the user to check their internet
     connection if an adapter operation has timed out:
-  
+
     ```app/routes/application.js
     import Route from '@ember/routing/route';
     import { TimeoutError } from '@ember-data/adapter/error';
     import { action } from '@ember/object';
-  
+
     export default class ApplicationRoute extends Route {
       @action
       error(error, transition) {
@@ -67155,12 +67155,12 @@ require('ember');
           alert('Are you still connected to the Internet?');
           return;
         }
-  
+
         // ...other error handling logic
       }
     }
     ```
-  
+
     @class TimeoutError
     @extends AdapterError
   */
@@ -67173,7 +67173,7 @@ require('ember');
     the external API was aborted. For example, this can occur if the user
     navigates away from the current page after a request to the external API
     has been initiated but before a response has been received.
-  
+
     @class AbortError
     @extends AdapterError
   */
@@ -67186,15 +67186,15 @@ require('ember');
     status. It is used by an adapter to signal that a request to the external
     API was rejected because authorization is required and has failed or has not
     yet been provided.
-  
+
     An example use case would be to redirect the user to a login route if a
     request is unauthorized:
-  
+
     ```app/routes/application.js
     import Route from '@ember/routing/route';
     import { UnauthorizedError } from '@ember-data/adapter/error';
     import { action } from '@ember/object';
-  
+
     export default class ApplicationRoute extends Route {
       @action
       error(error, transition) {
@@ -67203,12 +67203,12 @@ require('ember');
           this.transitionTo('login');
           return;
         }
-  
+
         // ...other error handling logic
       }
     }
     ```
-  
+
     @class UnauthorizedError
     @extends AdapterError
   */
@@ -67222,7 +67222,7 @@ require('ember');
     valid but the server is refusing to respond to it. If authorization was
     provided and is valid, then the authenticated user does not have the
     necessary permissions for the request.
-  
+
     @class ForbiddenError
     @extends AdapterError
   */
@@ -67234,16 +67234,16 @@ require('ember');
     A `NotFoundError` equates to a HTTP `404 Not Found` response status.
     It is used by an adapter to signal that a request to the external API
     was rejected because the resource could not be found on the API.
-  
+
     An example use case would be to detect if the user has entered a route
     for a specific model that does not exist. For example:
-  
+
     ```app/routes/post.js
     import Route from '@ember/routing/route';
     import { NotFoundError } from '@ember-data/adapter/error';
     import { inject as service } from '@ember/service';
     import { action } from '@ember/object';
-  
+
     export default class PostRoute extends Route {
       @service store;
       model(params) {
@@ -67261,7 +67261,7 @@ require('ember');
       }
     }
     ```
-  
+
     @class NotFoundError
     @extends AdapterError
   */
@@ -67275,7 +67275,7 @@ require('ember');
     because of a conflict in the request. An example scenario would be when
     creating a record with a client-generated ID but that ID is already known
     to the external API.
-  
+
     @class ConflictError
     @extends AdapterError
   */
@@ -67287,7 +67287,7 @@ require('ember');
     A `ServerError` equates to a HTTP `500 Internal Server Error` response
     status. It is used by the adapter to indicate that a request has failed
     because of an error in the external API.
-  
+
     @class ServerError
     @extends AdapterError
   */
@@ -67317,50 +67317,50 @@ require('ember');
     may be anything, such as the browser's local storage. Typically the
     adapter is not invoked directly instead its functionality is accessed
     through the `store`.
-  
+
     ### Creating an Adapter
-  
+
     Create a new subclass of `Adapter` in the `app/adapters` folder:
-  
+
     ```app/adapters/application.js
     import Adapter from '@ember-data/adapter';
-  
+
     export default Adapter.extend({
       // ...your code here
     });
     ```
-  
+
     Model-specific adapters can be created by putting your adapter
     class in an `app/adapters/` + `model-name` + `.js` file of the application.
-  
+
     ```app/adapters/post.js
     import Adapter from '@ember-data/adapter';
-  
+
     export default Adapter.extend({
       // ...Post-specific adapter code goes here
     });
     ```
-  
+
     `Adapter` is an abstract base class that you should override in your
     application to customize it for your backend. The minimum set of methods
     that you should implement is:
-  
+
       * `findRecord()`
       * `createRecord()`
       * `updateRecord()`
       * `deleteRecord()`
       * `findAll()`
       * `query()`
-  
+
     To improve the network performance of your application, you can optimize
     your adapter by overriding these lower-level methods:
-  
+
       * `findMany()`
-  
-  
+
+
     For an example of the implementation, see `RESTAdapter`, the
     included REST adapter.
-  
+
     @module @ember-data/adapter
     @class Adapter
     @extends EmberObject
@@ -67901,14 +67901,14 @@ require('ember');
     is responsible for transforming the store's requests into HTTP
     requests that follow the [JSON API](http://jsonapi.org/format/)
     format.
-  
+
     ## JSON API Conventions
-  
+
     The JSONAPIAdapter uses JSON API conventions for building the URL
     for a record and selecting the HTTP verb to use with a request. The
     actions you can take on a record map onto the following URLs in the
     JSON API adapter:
-  
+
   <table>
     <tr>
       <th>
@@ -67977,55 +67977,55 @@ require('ember');
       </td>
     </tr>
   </table>
-  
+
     ## Success and failure
-  
+
     The JSONAPIAdapter will consider a success any response with a
     status code of the 2xx family ("Success"), as well as 304 ("Not
     Modified"). Any other status code will be considered a failure.
-  
+
     On success, the request promise will be resolved with the full
     response payload.
-  
+
     Failed responses with status code 422 ("Unprocessable Entity") will
     be considered "invalid". The response will be discarded, except for
     the `errors` key. The request promise will be rejected with a
     `InvalidError`. This error object will encapsulate the saved
     `errors` value.
-  
+
     Any other status codes will be treated as an adapter error. The
     request promise will be rejected, similarly to the invalid case,
     but with an instance of `AdapterError` instead.
-  
+
     ### Endpoint path customization
-  
+
     Endpoint paths can be prefixed with a `namespace` by setting the
     namespace property on the adapter:
-  
+
     ```app/adapters/application.js
     import JSONAPIAdapter from '@ember-data/adapter/json-api';
-  
+
     export default JSONAPIAdapter.extend({
       namespace: 'api/1'
     });
     ```
     Requests for the `person` model would now target `/api/1/people/1`.
-  
+
     ### Host customization
-  
+
     An adapter can target other hosts by setting the `host` property.
-  
+
     ```app/adapters/application.js
     import JSONAPIAdapter from '@ember-data/adapter/json-api';
-  
+
     export default JSONAPIAdapter.extend({
       host: 'https://api.example.com'
     });
     ```
-  
+
     Requests for the `person` model would now target
     `https://api.example.com/people/1`.
-  
+
     @since 1.13.0
     @class JSONAPIAdapter
     @constructor
@@ -68139,39 +68139,39 @@ require('ember');
     The REST adapter allows your store to communicate with an HTTP server by
     transmitting JSON via XHR. Most Ember.js apps that consume a JSON API
     should use the REST adapter.
-  
+
     This adapter is designed around the idea that the JSON exchanged with
     the server should be conventional.
-  
+
     ## Success and failure
-  
+
     The REST adapter will consider a success any response with a status code
     of the 2xx family ("Success"), as well as 304 ("Not Modified"). Any other
     status code will be considered a failure.
-  
+
     On success, the request promise will be resolved with the full response
     payload.
-  
+
     Failed responses with status code 422 ("Unprocessable Entity") will be
     considered "invalid". The response will be discarded, except for the
     `errors` key. The request promise will be rejected with a `InvalidError`.
     This error object will encapsulate the saved `errors` value.
-  
+
     Any other status codes will be treated as an "adapter error". The request
     promise will be rejected, similarly to the "invalid" case, but with
     an instance of `AdapterError` instead.
-  
+
     ## JSON Structure
-  
+
     The REST adapter expects the JSON returned from your server to follow
     these conventions.
-  
+
     ### Object Root
-  
+
     The JSON payload should be an object that contains the record inside a
     root property. For example, in response to a `GET` request for
     `/posts/1`, the JSON should look like this:
-  
+
     ```js
     {
       "posts": {
@@ -68181,10 +68181,10 @@ require('ember');
       }
     }
     ```
-  
+
     Similarly, in response to a `GET` request for `/posts`, the JSON should
     look like this:
-  
+
     ```js
     {
       "posts": [
@@ -68201,32 +68201,32 @@ require('ember');
       ]
     }
     ```
-  
+
     Note that the object root can be pluralized for both a single-object response
     and an array response: the REST adapter is not strict on this. Further, if the
     HTTP server responds to a `GET` request to `/posts/1` (e.g. the response to a
     `findRecord` query) with more than one object in the array, Ember Data will
     only display the object with the matching ID.
-  
+
     ### Conventional Names
-  
+
     Attribute names in your JSON payload should be the camelCased versions of
     the attributes in your Ember.js models.
-  
+
     For example, if you have a `Person` model:
-  
+
     ```app/models/person.js
     import Model, { attr } from '@ember-data/model';
-  
+
     export default Model.extend({
       firstName: attr('string'),
       lastName: attr('string'),
       occupation: attr('string')
     });
     ```
-  
+
     The JSON returned should look like this:
-  
+
     ```js
     {
       "people": {
@@ -68237,13 +68237,13 @@ require('ember');
       }
     }
     ```
-  
+
     #### Relationships
-  
+
     Relationships are usually represented by ids to the record in the
     relationship. The related records can then be sideloaded in the
     response under a key for the type.
-  
+
     ```js
     {
       "posts": {
@@ -68263,13 +68263,13 @@ require('ember');
       }]
     }
     ```
-  
+
     If the records in the relationship are not known when the response
     is serialized it's also possible to represent the relationship as a
     URL using the `links` key in the response. Ember Data will fetch
     this URL to resolve the relationship when it is accessed for the
     first time.
-  
+
     ```js
     {
       "posts": {
@@ -68282,12 +68282,12 @@ require('ember');
       }
     }
     ```
-  
+
     ### Errors
-  
+
     If a response is considered a failure, the JSON payload is expected to include
     a top-level key `errors`, detailing any specific issues. For example:
-  
+
     ```js
     {
       "errors": {
@@ -68295,51 +68295,51 @@ require('ember');
       }
     }
     ```
-  
+
     This adapter does not make any assumptions as to the format of the `errors`
     object. It will simply be passed along as is, wrapped in an instance
     of `InvalidError` or `AdapterError`. The serializer can interpret it
     afterwards.
-  
+
     ## Customization
-  
+
     ### Endpoint path customization
-  
+
     Endpoint paths can be prefixed with a `namespace` by setting the namespace
     property on the adapter:
-  
+
     ```app/adapters/application.js
     import RESTAdapter from '@ember-data/adapter/rest';
-  
+
     export default RESTAdapter.extend({
       namespace: 'api/1'
     });
     ```
     Requests for the `Person` model would now target `/api/1/people/1`.
-  
+
     ### Host customization
-  
+
     An adapter can target other hosts by setting the `host` property.
-  
+
     ```app/adapters/application.js
     import RESTAdapter from '@ember-data/adapter/rest';
-  
+
     export default RESTAdapter.extend({
       host: 'https://api.example.com'
     });
     ```
-  
+
     ### Headers customization
-  
+
     Some APIs require HTTP headers, e.g. to provide an API key. Arbitrary
     headers can be set as key/value pairs on the `RESTAdapter`'s `headers`
     object and Ember Data will send them along with each ajax request.
-  
-  
+
+
     ```app/adapters/application.js
     import RESTAdapter from '@ember-data/adapter/rest';
     import { computed } from '@ember/object';
-  
+
     export default RESTAdapter.extend({
       headers: computed(function() {
         return {
@@ -68349,15 +68349,15 @@ require('ember');
       }
     });
     ```
-  
+
     `headers` can also be used as a computed property to support dynamic
     headers. In the example below, the `session` object has been
     injected into an adapter by Ember's container.
-  
+
     ```app/adapters/application.js
     import RESTAdapter from '@ember-data/adapter/rest';
     import { computed } from '@ember/object';
-  
+
     export default RESTAdapter.extend({
       headers: computed('session.authToken', function() {
         return {
@@ -68367,19 +68367,19 @@ require('ember');
       })
     });
     ```
-  
+
     In some cases, your dynamic headers may require data from some
     object outside of Ember's observer system (for example
     `document.cookie`). You can use the
     [volatile](/api/classes/Ember.ComputedProperty.html?anchor=volatile)
     function to set the property into a non-cached mode causing the headers to
     be recomputed with every request.
-  
+
     ```app/adapters/application.js
     import RESTAdapter from '@ember-data/adapter/rest';
     import { get } from '@ember/object';
     import { computed } from '@ember/object';
-  
+
     export default RESTAdapter.extend({
       headers: computed(function() {
         return {
@@ -68389,7 +68389,7 @@ require('ember');
       }).volatile()
     });
     ```
-  
+
     @class RESTAdapter
     @constructor
     @extends Adapter
@@ -69158,7 +69158,7 @@ require('ember');
           try {
             return `${protocol}//${host}${url}`;
           } catch (fbError) {
-            throw new Error('You are using Ember Data with no host defined in your adapter. This will attempt to use the host of the FastBoot request, which is not configured for the current host of this request. Please set the hostWhitelist property for in your environment.js. FastBoot Error: ' + fbError.message);
+            throw new Error('You are using Ember Data with no host defined in your adapter. This will attempt to use the host of the FastBoot request, which is not configured for the current host of this request. Please set the hostAllowList property for in your environment.js. FastBoot Error: ' + fbError.message);
           }
         }
       }
@@ -69612,9 +69612,9 @@ require('ember');
   /*
     This list of features is used both at build time (by `@ember-data/private-build-infra`)
     and at runtime (by `@ember-data/canary-features`).
-  
+
     The valid values are:
-  
+
     - true - The feature is enabled at all times, and cannot be disabled.
     - false - The feature is disabled at all times, and cannot be enabled.
     - null - The feature is disabled by default, but can be enabled at runtime via `EmberDataENV`.
@@ -69675,7 +69675,7 @@ require('ember');
   /**
     Implements `@ember/debug/data-adapter` with for EmberData
     integration with the ember-inspector.
-  
+
     @class InspectorDataAdapter
     @extends DataAdapter
     @private
@@ -75369,7 +75369,7 @@ require('ember');
       `_attributes` then the user has a local changed to the attribute
       that has not been synced with the server and the key is not
       included in the list of changed keys.
-    
+
       If the value, for a key differs from the value in what Ember Data
       believes to be the truth about the backend state (A merger of the
       `_data` and `_inFlightAttributes` objects where
@@ -76466,17 +76466,17 @@ require('ember');
     `Serializer` is an abstract base class that you should override in your
     application to customize it for your backend. The minimum set of methods
     that you should implement is:
-  
+
       * `normalizeResponse()`
       * `serialize()`
-  
+
     And you can optionally override the following methods:
-  
+
       * `normalize()`
-  
+
     For an example implementation, see
     [JSONSerializer](JSONSerializer), the included JSON serializer.
-  
+
     @class Serializer
     @extends EmberObject
   */
@@ -76611,20 +76611,20 @@ require('ember');
 
   /**
     Ember Data 2.0 Serializer:
-  
+
     In Ember Data a Serializer is used to serialize and deserialize
     records when they are transferred in and out of an external source.
     This process involves normalizing property names, transforming
     attribute values and serializing relationships.
-  
+
     `JSONAPISerializer` supports the http://jsonapi.org/ spec and is the
     serializer recommended by Ember Data.
-  
+
     This serializer normalizes a JSON API payload that looks like:
-  
+
     ```app/models/player.js
     import Model, { attr, belongsTo } from '@ember-data/model';
-  
+
     export default Model.extend({
       name: attr('string'),
       skill: attr('string'),
@@ -76632,17 +76632,17 @@ require('ember');
       club: belongsTo('club')
     });
     ```
-  
+
     ```app/models/club.js
     import Model, { attr, hasMany } from '@ember-data/model';
-  
+
     export default Model.extend({
       name: attr('string'),
       location: attr('string'),
       players: hasMany('player')
     });
     ```
-  
+
     ```js
       {
         "data": [
@@ -76686,40 +76686,40 @@ require('ember');
         ]
       }
     ```
-  
+
     to the format that the Ember Data store expects.
-  
+
     ### Customizing meta
-  
+
     Since a JSON API Document can have meta defined in multiple locations you can
     use the specific serializer hooks if you need to customize the meta.
-  
+
     One scenario would be to camelCase the meta keys of your payload. The example
     below shows how this could be done using `normalizeArrayResponse` and
     `extractRelationship`.
-  
+
     ```app/serializers/application.js
     export default JSONAPISerializer.extend({
       normalizeArrayResponse(store, primaryModelClass, payload, id, requestType) {
         let normalizedDocument = this._super(...arguments);
-  
+
         // Customize document meta
         normalizedDocument.meta = camelCaseKeys(normalizedDocument.meta);
-  
+
         return normalizedDocument;
       },
-  
+
       extractRelationship(relationshipHash) {
         let normalizedRelationship = this._super(...arguments);
-  
+
         // Customize relationship meta
         normalizedRelationship.meta = camelCaseKeys(normalizedRelationship.meta);
-  
+
         return normalizedRelationship;
       }
     });
     ```
-  
+
     @since 1.13.0
     @class JSONAPISerializer
     @extends JSONSerializer
@@ -77188,30 +77188,30 @@ require('ember');
 
   /**
     Ember Data 2.0 Serializer:
-  
+
     In Ember Data a Serializer is used to serialize and deserialize
     records when they are transferred in and out of an external source.
     This process involves normalizing property names, transforming
     attribute values and serializing relationships.
-  
+
     By default, Ember Data uses and recommends the `JSONAPISerializer`.
-  
+
     `JSONSerializer` is useful for simpler or legacy backends that may
     not support the http://jsonapi.org/ spec.
-  
+
     For example, given the following `User` model and JSON payload:
-  
+
     ```app/models/user.js
     import Model, { attr, belongsTo, hasMany } from '@ember-data/model';
-  
+
     export default Model.extend({
       friends: hasMany('user'),
       house: belongsTo('location'),
-  
+
       name: attr('string')
     });
     ```
-  
+
     ```js
     {
       id: 1,
@@ -77222,13 +77222,13 @@ require('ember');
       }
     }
     ```
-  
+
     `JSONSerializer` will normalize the JSON payload to the JSON API format that the
     Ember Data store expects.
-  
+
     You can customize how JSONSerializer processes its payload by passing options in
     the `attrs` hash or by subclassing the `JSONSerializer` and overriding hooks:
-  
+
       - To customize how a single record is normalized, use the `normalize` hook.
       - To customize how `JSONSerializer` normalizes the whole server response, use the
         `normalizeResponse` hook.
@@ -77236,9 +77236,9 @@ require('ember');
         use one of the many specific `normalizeResponse` hooks.
       - To customize how `JSONSerializer` normalizes your id, attributes or relationships,
         use the `extractId`, `extractAttributes` and `extractRelationships` hooks.
-  
+
     The `JSONSerializer` normalization process follows these steps:
-  
+
       - `normalizeResponse` - entry method to the serializer.
       - `normalizeCreateRecordResponse` - a `normalizeResponse` for a specific operation is called.
       - `normalizeSingleResponse`|`normalizeArrayResponse` - for methods like `createRecord` we expect
@@ -77247,7 +77247,7 @@ require('ember');
         calls it once. This is the method you most likely want to subclass.
       - `extractId` | `extractAttributes` | `extractRelationships` - `normalize` delegates to these methods to
         turn the record payload into the JSON API format.
-  
+
     @class JSONSerializer
     @extends Serializer
   */
@@ -78580,42 +78580,42 @@ require('ember');
   /**
     Normally, applications will use the `RESTSerializer` by implementing
     the `normalize` method.
-  
+
     This allows you to do whatever kind of munging you need and is
     especially useful if your server is inconsistent and you need to
     do munging differently for many different kinds of responses.
-  
+
     See the `normalize` documentation for more information.
-  
+
     ## Across the Board Normalization
-  
+
     There are also a number of hooks that you might find useful to define
     across-the-board rules for your payload. These rules will be useful
     if your server is consistent, or if you're building an adapter for
     an infrastructure service, like Firebase, and want to encode service
     conventions.
-  
+
     For example, if all of your keys are underscored and all-caps, but
     otherwise consistent with the names you use in your models, you
     can implement across-the-board rules for how to convert an attribute
     name in your model to a key in your JSON.
-  
+
     ```app/serializers/application.js
     import RESTSerializer from '@ember-data/serializer/rest';
     import { underscore } from '@ember/string';
-  
+
     export default RESTSerializer.extend({
       keyForAttribute(attr, method) {
         return underscore(attr).toUpperCase();
       }
     });
     ```
-  
+
     You can also implement `keyForRelationship`, which takes the name
     of the relationship as the first parameter, the kind of
     relationship (`hasMany` or `belongsTo`) as the second parameter, and
     the method (`serialize` or `deserialize`) as the third parameter.
-  
+
     @class RESTSerializer
     @extends JSONSerializer
   */
@@ -79311,15 +79311,15 @@ require('ember');
   /*
     Assert that `addedRecord` has a valid type so it can be added to the
     relationship of the `record`.
-  
+
     The assert basically checks if the `addedRecord` can be added to the
     relationship (specified via `relationshipMeta`) of the `record`.
-  
+
     This utility should only be used internally, as both record parameters must
     be an InternalModel and the `relationshipMeta` needs to be the meta
     information about the relationship, retrieved via
     `record.relationshipFor(key)`.
-  
+
     @method assertPolymorphicType
     @param {InternalModel} internalModel
     @param {RelationshipMeta} relationshipMeta retrieved via
@@ -90962,7 +90962,7 @@ require('ember');
   /*
     Configures a registry for use with an Ember-Data
     store.
-  
+
     @method initializeStoreService
     @param {Ember.ApplicationInstance | Ember.EngineInstance} instance
   */
@@ -91352,44 +91352,44 @@ require('ember');
     Inflector.Ember provides a mechanism for supplying inflection rules for your
     application. Ember includes a default set of inflection rules, and provides an
     API for providing additional rules.
-  
+
     Examples:
-  
+
     Creating an inflector with no rules.
-  
+
     ```js
     var inflector = new Ember.Inflector();
     ```
-  
+
     Creating an inflector with the default ember ruleset.
-  
+
     ```js
     var inflector = new Ember.Inflector(Ember.Inflector.defaultRules);
-  
+
     inflector.pluralize('cow'); //=> 'kine'
     inflector.singularize('kine'); //=> 'cow'
     ```
-  
+
     Creating an inflector and adding rules later.
-  
+
     ```javascript
     var inflector = Ember.Inflector.inflector;
-  
+
     inflector.pluralize('advice'); // => 'advices'
     inflector.uncountable('advice');
     inflector.pluralize('advice'); // => 'advice'
-  
+
     inflector.pluralize('formula'); // => 'formulas'
     inflector.irregular('formula', 'formulae');
     inflector.pluralize('formula'); // => 'formulae'
-  
+
     // you would not need to add these as they are the default rules
     inflector.plural(/$/, 's');
     inflector.singular(/s$/i, '');
     ```
-  
+
     Creating an inflector with a nondefault ruleset.
-  
+
     ```javascript
     var rules = {
       plurals:  [
@@ -91403,10 +91403,10 @@ require('ember');
       ],
       uncountable: [ 'fish' ]
     };
-  
+
     var inflector = new Ember.Inflector(rules);
     ```
-  
+
     @class Inflector
     @namespace Ember
   */
diff --git a/packages/fastboot-express-middleware/test/fixtures/app-with-metadata/assets/vendor.map b/packages/fastboot-express-middleware/test/fixtures/app-with-metadata/assets/vendor.map
index f62ae0fa5..3f0bb6fa6 100644
--- a/packages/fastboot-express-middleware/test/fixtures/app-with-metadata/assets/vendor.map
+++ b/packages/fastboot-express-middleware/test/fixtures/app-with-metadata/assets/vendor.map
@@ -1 +1 @@
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callback, alias) {\n    this.uuid = uuid++;\n    this.id = id;\n    this.deps = !deps.length && callback.length ? defaultDeps : deps;\n    this.module = { exports: {} };\n    this.callback = callback;\n    this.hasExportsAsDep = false;\n    this.isAlias = alias;\n    this.reified = new Array(deps.length);\n\n    /*\n       Each module normally passes through these states, in order:\n         new       : initial state\n         pending   : this module is scheduled to be executed\n         reifying  : this module's dependencies are being executed\n         reified   : this module's dependencies finished executing successfully\n         errored   : this module's dependencies failed to execute\n         finalized : this module executed successfully\n     */\n    this.state = 'new';\n  }\n\n  Module.prototype.makeDefaultExport = function () {\n    var exports = this.module.exports;\n    if (exports !== null && (typeof exports === 'object' || typeof exports === 'function') && exports['default'] === undefined && Object.isExtensible(exports)) {\n      exports['default'] = exports;\n    }\n  };\n\n  Module.prototype.exports = function () {\n    // if finalized, there is no work to do. If reifying, there is a\n    // circular dependency so we must return our (partial) exports.\n    if (this.state === 'finalized' || this.state === 'reifying') {\n      return this.module.exports;\n    }\n\n\n    if (loader.wrapModules) {\n      this.callback = loader.wrapModules(this.id, this.callback);\n    }\n\n    this.reify();\n\n    var result = this.callback.apply(this, this.reified);\n    this.reified.length = 0;\n    this.state = 'finalized';\n\n    if (!(this.hasExportsAsDep && result === undefined)) {\n      this.module.exports = result;\n    }\n    if (loader.makeDefaultExport) {\n      this.makeDefaultExport();\n    }\n    return this.module.exports;\n  };\n\n  Module.prototype.unsee = function () {\n    this.state = 'new';\n    this.module = { exports: {} };\n  };\n\n  Module.prototype.reify = function () {\n    if (this.state === 'reified') {\n      return;\n    }\n    this.state = 'reifying';\n    try {\n      this.reified = this._reify();\n      this.state = 'reified';\n    } finally {\n      if (this.state === 'reifying') {\n        this.state = 'errored';\n      }\n    }\n  };\n\n  Module.prototype._reify = function () {\n    var reified = this.reified.slice();\n    for (var i = 0; i < reified.length; i++) {\n      var mod = reified[i];\n      reified[i] = mod.exports ? mod.exports : mod.module.exports();\n    }\n    return reified;\n  };\n\n  Module.prototype.findDeps = function (pending) {\n    if (this.state !== 'new') {\n      return;\n    }\n\n    this.state = 'pending';\n\n    var deps = this.deps;\n\n    for (var i = 0; i < deps.length; i++) {\n      var dep = deps[i];\n      var entry = this.reified[i] = { exports: undefined, module: undefined };\n      if (dep === 'exports') {\n        this.hasExportsAsDep = true;\n        entry.exports = this.module.exports;\n      } else if (dep === 'require') {\n        entry.exports = this.makeRequire();\n      } else if (dep === 'module') {\n        entry.exports = this.module;\n      } else {\n        entry.module = findModule(resolve(dep, this.id), this.id, pending);\n      }\n    }\n  };\n\n  Module.prototype.makeRequire = function () {\n    var id = this.id;\n    var r = function (dep) {\n      return require(resolve(dep, id));\n    };\n    r['default'] = r;\n    r.moduleId = id;\n    r.has = function (dep) {\n      return has(resolve(dep, id));\n    };\n    return r;\n  };\n\n  define = function (id, deps, callback) {\n    var module = registry[id];\n\n    // If a module for this id has already been defined and is in any state\n    // other than `new` (meaning it has been or is currently being required),\n    // then we return early to avoid redefinition.\n    if (module && module.state !== 'new') {\n      return;\n    }\n\n    if (arguments.length < 2) {\n      unsupportedModule(arguments.length);\n    }\n\n    if (!Array.isArray(deps)) {\n      callback = deps;\n      deps = [];\n    }\n\n    if (callback instanceof Alias) {\n      registry[id] = new Module(callback.id, deps, callback, true);\n    } else {\n      registry[id] = new Module(id, deps, callback, false);\n    }\n  };\n\n  define.exports = function (name, defaultExport) {\n    var module = registry[name];\n\n    // If a module for this name has already been defined and is in any state\n    // other than `new` (meaning it has been or is currently being required),\n    // then we return early to avoid redefinition.\n    if (module && module.state !== 'new') {\n      return;\n    }\n\n    module = new Module(name, [], noop, null);\n    module.module.exports = defaultExport;\n    module.state = 'finalized';\n    registry[name] = module;\n\n    return module;\n  };\n\n  function noop() {}\n  // we don't support all of AMD\n  // define.amd = {};\n\n  function Alias(id) {\n    this.id = id;\n  }\n\n  define.alias = function (id, target) {\n    if (arguments.length === 2) {\n      return define(target, new Alias(id));\n    }\n\n    return new Alias(id);\n  };\n\n  function missingModule(id, referrer) {\n    throw new Error('Could not find module `' + id + '` imported from `' + referrer + '`');\n  }\n\n  function findModule(id, referrer, pending) {\n    var mod = registry[id] || registry[id + '/index'];\n\n    while (mod && mod.isAlias) {\n      mod = registry[mod.id] || registry[mod.id + '/index'];\n    }\n\n    if (!mod) {\n      missingModule(id, referrer);\n    }\n\n    if (pending && mod.state !== 'pending' && mod.state !== 'finalized') {\n      mod.findDeps(pending);\n      pending.push(mod);\n    }\n    return mod;\n  }\n\n  function resolve(child, id) {\n    if (child.charAt(0) !== '.') {\n      return child;\n    }\n\n\n    var parts = child.split('/');\n    var nameParts = id.split('/');\n    var parentBase = nameParts.slice(0, -1);\n\n    for (var i = 0, l = parts.length; i < l; i++) {\n      var part = parts[i];\n\n      if (part === '..') {\n        if (parentBase.length === 0) {\n          throw new Error('Cannot access parent module of root');\n        }\n        parentBase.pop();\n      } else if (part === '.') {\n        continue;\n      } else {\n        parentBase.push(part);\n      }\n    }\n\n    return parentBase.join('/');\n  }\n\n  function has(id) {\n    return !!(registry[id] || registry[id + '/index']);\n  }\n\n  requirejs.entries = requirejs._eak_seen = registry;\n  requirejs.has = has;\n  requirejs.unsee = function (id) {\n    findModule(id, '(unsee)', false).unsee();\n  };\n\n  requirejs.clear = function () {\n    requirejs.entries = requirejs._eak_seen = registry = dict();\n    seen = dict();\n  };\n\n  // This code primes the JS engine for good performance by warming the\n  // JIT compiler for these functions.\n  define('foo', function () {});\n  define('foo/bar', [], function () {});\n  define('foo/asdf', ['module', 'exports', 'require'], function (module, exports, require) {\n    if (require.has('foo/bar')) {\n      require('foo/bar');\n    }\n  });\n  define('foo/baz', [], define.alias('foo'));\n  define('foo/quz', define.alias('foo'));\n  define.alias('foo', 'foo/qux');\n  define('foo/bar', ['foo', './quz', './baz', './asdf', './bar', '../foo'], function () {});\n  define('foo/main', ['foo/bar'], function () {});\n  define.exports('foo/exports', {});\n\n  require('foo/exports');\n  require('foo/main');\n  require.unsee('foo/bar');\n\n  requirejs.clear();\n\n  if (typeof exports === 'object' && typeof module === 'object' && module.exports) {\n    module.exports = { require: require, define: define };\n  }\n})(this);","/*!\n * @overview  Ember - JavaScript Application Framework\n * @copyright Copyright 2011-2019 Tilde Inc. and contributors\n *            Portions Copyright 2006-2011 Strobe Inc.\n *            Portions Copyright 2008-2011 Apple Inc. All rights reserved.\n * @license   Licensed under MIT license\n *            See https://raw.github.com/emberjs/ember.js/master/LICENSE\n * @version   3.18.1\n */","/*globals process */\nvar define, require, Ember; // Used in @ember/-internals/environment/lib/global.js\n\n\nmainContext = this; // eslint-disable-line no-undef\n\n(function () {\n  var registry;\n  var seen;\n\n  function missingModule(name, referrerName) {\n    if (referrerName) {\n      throw new Error('Could not find module ' + name + ' required by: ' + referrerName);\n    } else {\n      throw new Error('Could not find module ' + name);\n    }\n  }\n\n  function internalRequire(_name, referrerName) {\n    var name = _name;\n    var mod = registry[name];\n\n    if (!mod) {\n      name = name + '/index';\n      mod = registry[name];\n    }\n\n    var exports = seen[name];\n\n    if (exports !== undefined) {\n      return exports;\n    }\n\n    exports = seen[name] = {};\n\n    if (!mod) {\n      missingModule(_name, referrerName);\n    }\n\n    var deps = mod.deps;\n    var callback = mod.callback;\n    var reified = new Array(deps.length);\n\n    for (var i = 0; i < deps.length; i++) {\n      if (deps[i] === 'exports') {\n        reified[i] = exports;\n      } else if (deps[i] === 'require') {\n        reified[i] = require;\n      } else {\n        reified[i] = internalRequire(deps[i], name);\n      }\n    }\n\n    callback.apply(this, reified);\n    return exports;\n  }\n\n  var isNode = typeof window === 'undefined' && typeof process !== 'undefined' && {}.toString.call(process) === '[object process]';\n\n  if (!isNode) {\n    Ember = this.Ember = this.Ember || {};\n  }\n\n  if (typeof Ember === 'undefined') {\n    Ember = {};\n  }\n\n  if (typeof Ember.__loader === 'undefined') {\n    registry = Object.create(null);\n    seen = Object.create(null);\n\n    define = function (name, deps, callback) {\n      var value = {};\n\n      if (!callback) {\n        value.deps = [];\n        value.callback = deps;\n      } else {\n        value.deps = deps;\n        value.callback = callback;\n      }\n\n      registry[name] = value;\n    };\n\n    require = function (name) {\n      return internalRequire(name, null);\n    }; // setup `require` module\n\n\n    require['default'] = require;\n\n    require.has = function registryHas(moduleName) {\n      return Boolean(registry[moduleName]) || Boolean(registry[moduleName + '/index']);\n    };\n\n    require._eak_seen = registry;\n    Ember.__loader = {\n      define: define,\n      require: require,\n      registry: registry\n    };\n  } else {\n    define = Ember.__loader.define;\n    require = Ember.__loader.require;\n  }\n})();","define(\"@ember/-internals/browser-environment/index\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.hasDOM = _exports.isFirefox = _exports.isChrome = _exports.userAgent = _exports.history = _exports.location = _exports.window = void 0;\n  // check if window exists and actually is the global\n  var hasDom = typeof self === 'object' && self !== null && self.Object === Object && typeof Window !== 'undefined' && self.constructor === Window && typeof document === 'object' && document !== null && self.document === document && typeof location === 'object' && location !== null && self.location === location && typeof history === 'object' && history !== null && self.history === history && typeof navigator === 'object' && navigator !== null && self.navigator === navigator && typeof navigator.userAgent === 'string';\n  _exports.hasDOM = hasDom;\n  var window = hasDom ? self : null;\n  _exports.window = window;\n  var location$1 = hasDom ? self.location : null;\n  _exports.location = location$1;\n  var history$1 = hasDom ? self.history : null;\n  _exports.history = history$1;\n  var userAgent = hasDom ? self.navigator.userAgent : 'Lynx (textmode)';\n  _exports.userAgent = userAgent;\n  var isChrome = hasDom ? Boolean(window.chrome) && !window.opera : false;\n  _exports.isChrome = isChrome;\n  var isFirefox = hasDom ? typeof InstallTrigger !== 'undefined' : false;\n  _exports.isFirefox = isFirefox;\n});","define(\"@ember/-internals/console/index\", [\"exports\", \"@ember/debug\", \"@ember/deprecated-features\"], function (_exports, _debug, _deprecatedFeatures) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n  // Deliver message that the function is deprecated\n  var DEPRECATION_MESSAGE = 'Use of Ember.Logger is deprecated. Please use `console` for logging.';\n  var DEPRECATION_ID = 'ember-console.deprecate-logger';\n  var DEPRECATION_URL = 'https://emberjs.com/deprecations/v3.x#toc_use-console-rather-than-ember-logger';\n  /**\n     @module ember\n  */\n\n  /**\n    Inside Ember-Metal, simply uses the methods from `imports.console`.\n    Override this to provide more robust logging functionality.\n  \n    @class Logger\n    @deprecated Use 'console' instead\n  \n    @namespace Ember\n    @public\n  */\n\n  var DEPRECATED_LOGGER;\n\n  if (_deprecatedFeatures.LOGGER) {\n    DEPRECATED_LOGGER = {\n      /**\n      Logs the arguments to the console.\n      You can pass as many arguments as you want and they will be joined together with a space.\n       ```javascript\n      var foo = 1;\n      Ember.Logger.log('log value of foo:', foo);\n      // \"log value of foo: 1\" will be printed to the console\n      ```\n      @method log\n      @for Ember.Logger\n      @param {*} arguments\n      @public\n      */\n      log() {\n        (true && !(false) && (0, _debug.deprecate)(DEPRECATION_MESSAGE, false, {\n          id: DEPRECATION_ID,\n          until: '4.0.0',\n          url: DEPRECATION_URL\n        }));\n        return console.log(...arguments); // eslint-disable-line no-console\n      },\n\n      /**\n      Prints the arguments to the console with a warning icon.\n      You can pass as many arguments as you want and they will be joined together with a space.\n       ```javascript\n      Ember.Logger.warn('Something happened!');\n      // \"Something happened!\" will be printed to the console with a warning icon.\n      ```\n      @method warn\n      @for Ember.Logger\n      @param {*} arguments\n      @public\n      */\n      warn() {\n        (true && !(false) && (0, _debug.deprecate)(DEPRECATION_MESSAGE, false, {\n          id: DEPRECATION_ID,\n          until: '4.0.0',\n          url: DEPRECATION_URL\n        }));\n        return console.warn(...arguments); // eslint-disable-line no-console\n      },\n\n      /**\n      Prints the arguments to the console with an error icon, red text and a stack trace.\n      You can pass as many arguments as you want and they will be joined together with a space.\n       ```javascript\n      Ember.Logger.error('Danger! Danger!');\n      // \"Danger! Danger!\" will be printed to the console in red text.\n      ```\n      @method error\n      @for Ember.Logger\n      @param {*} arguments\n      @public\n      */\n      error() {\n        (true && !(false) && (0, _debug.deprecate)(DEPRECATION_MESSAGE, false, {\n          id: DEPRECATION_ID,\n          until: '4.0.0',\n          url: DEPRECATION_URL\n        }));\n        return console.error(...arguments); // eslint-disable-line no-console\n      },\n\n      /**\n      Logs the arguments to the console.\n      You can pass as many arguments as you want and they will be joined together with a space.\n       ```javascript\n      var foo = 1;\n      Ember.Logger.info('log value of foo:', foo);\n      // \"log value of foo: 1\" will be printed to the console\n      ```\n      @method info\n      @for Ember.Logger\n      @param {*} arguments\n      @public\n      */\n      info() {\n        (true && !(false) && (0, _debug.deprecate)(DEPRECATION_MESSAGE, false, {\n          id: DEPRECATION_ID,\n          until: '4.0.0',\n          url: DEPRECATION_URL\n        }));\n        return console.info(...arguments); // eslint-disable-line no-console\n      },\n\n      /**\n      Logs the arguments to the console in blue text.\n      You can pass as many arguments as you want and they will be joined together with a space.\n       ```javascript\n      var foo = 1;\n      Ember.Logger.debug('log value of foo:', foo);\n      // \"log value of foo: 1\" will be printed to the console\n      ```\n      @method debug\n      @for Ember.Logger\n      @param {*} arguments\n      @public\n      */\n      debug() {\n        (true && !(false) && (0, _debug.deprecate)(DEPRECATION_MESSAGE, false, {\n          id: DEPRECATION_ID,\n          until: '4.0.0',\n          url: DEPRECATION_URL\n        }));\n        /* eslint-disable no-console */\n\n        if (console.debug) {\n          return console.debug(...arguments);\n        }\n\n        return console.info(...arguments);\n        /* eslint-enable no-console */\n      },\n\n      /**\n      If the value passed into `Ember.Logger.assert` is not truthy it will throw an error with a stack trace.\n       ```javascript\n      Ember.Logger.assert(true); // undefined\n      Ember.Logger.assert(true === false); // Throws an Assertion failed error.\n      Ember.Logger.assert(true === false, 'Something invalid'); // Throws an Assertion failed error with message.\n      ```\n      @method assert\n      @for Ember.Logger\n      @param {Boolean} bool Value to test\n      @param {String} message Assertion message on failed\n      @public\n      */\n      assert() {\n        (true && !(false) && (0, _debug.deprecate)(DEPRECATION_MESSAGE, false, {\n          id: DEPRECATION_ID,\n          until: '4.0.0',\n          url: DEPRECATION_URL\n        }));\n        return console.assert(...arguments); // eslint-disable-line no-console\n      }\n\n    };\n  }\n\n  var _default = DEPRECATED_LOGGER;\n  _exports.default = _default;\n});","define(\"@ember/-internals/container/index\", [\"exports\", \"@ember/-internals/owner\", \"@ember/-internals/utils\", \"@ember/debug\", \"@ember/polyfills\"], function (_exports, _owner, _utils, _debug, _polyfills) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.privatize = privatize;\n  _exports.FACTORY_FOR = _exports.Container = _exports.Registry = void 0;\n  var leakTracking;\n  var containers;\n\n  if (true\n  /* DEBUG */\n  ) {\n    // requires v8\n    // chrome --js-flags=\"--allow-natives-syntax --expose-gc\"\n    // node --allow-natives-syntax --expose-gc\n    try {\n      if (typeof gc === 'function') {\n        leakTracking = (() => {\n          // avoid syntax errors when --allow-natives-syntax not present\n          var GetWeakSetValues = new Function('weakSet', 'return %GetWeakSetValues(weakSet, 0)');\n          containers = new WeakSet();\n          return {\n            hasContainers() {\n              gc();\n              return GetWeakSetValues(containers).length > 0;\n            },\n\n            reset() {\n              var values = GetWeakSetValues(containers);\n\n              for (var i = 0; i < values.length; i++) {\n                containers.delete(values[i]);\n              }\n            }\n\n          };\n        })();\n      }\n    } catch (e) {// ignore\n    }\n  }\n  /**\n   A container used to instantiate and cache objects.\n  \n   Every `Container` must be associated with a `Registry`, which is referenced\n   to determine the factory and options that should be used to instantiate\n   objects.\n  \n   The public API for `Container` is still in flux and should not be considered\n   stable.\n  \n   @private\n   @class Container\n   */\n\n\n  class Container {\n    constructor(registry, options = {}) {\n      this.registry = registry;\n      this.owner = options.owner || null;\n      this.cache = (0, _utils.dictionary)(options.cache || null);\n      this.factoryManagerCache = (0, _utils.dictionary)(options.factoryManagerCache || null);\n      this.isDestroyed = false;\n      this.isDestroying = false;\n\n      if (true\n      /* DEBUG */\n      ) {\n        this.validationCache = (0, _utils.dictionary)(options.validationCache || null);\n\n        if (containers !== undefined) {\n          containers.add(this);\n        }\n      }\n    }\n    /**\n     @private\n     @property registry\n     @type Registry\n     @since 1.11.0\n     */\n\n    /**\n     @private\n     @property cache\n     @type InheritingDict\n     */\n\n    /**\n     @private\n     @property validationCache\n     @type InheritingDict\n     */\n\n    /**\n     Given a fullName return a corresponding instance.\n      The default behavior is for lookup to return a singleton instance.\n     The singleton is scoped to the container, allowing multiple containers\n     to all have their own locally scoped singletons.\n      ```javascript\n     let registry = new Registry();\n     let container = registry.container();\n      registry.register('api:twitter', Twitter);\n      let twitter = container.lookup('api:twitter');\n      twitter instanceof Twitter; // => true\n      // by default the container will return singletons\n     let twitter2 = container.lookup('api:twitter');\n     twitter2 instanceof Twitter; // => true\n      twitter === twitter2; //=> true\n     ```\n      If singletons are not wanted, an optional flag can be provided at lookup.\n      ```javascript\n     let registry = new Registry();\n     let container = registry.container();\n      registry.register('api:twitter', Twitter);\n      let twitter = container.lookup('api:twitter', { singleton: false });\n     let twitter2 = container.lookup('api:twitter', { singleton: false });\n      twitter === twitter2; //=> false\n     ```\n      @private\n     @method lookup\n     @param {String} fullName\n     @param {Object} [options]\n     @param {String} [options.source] The fullname of the request source (used for local lookup)\n     @return {any}\n     */\n\n\n    lookup(fullName, options) {\n      if (this.isDestroyed) {\n        throw new Error(`Can not call \\`.lookup\\` after the owner has been destroyed`);\n      }\n\n      (true && !(this.registry.isValidFullName(fullName)) && (0, _debug.assert)('fullName must be a proper full name', this.registry.isValidFullName(fullName)));\n      return lookup(this, this.registry.normalize(fullName), options);\n    }\n    /**\n     A depth first traversal, destroying the container, its descendant containers and all\n     their managed objects.\n      @private\n     @method destroy\n     */\n\n\n    destroy() {\n      this.isDestroying = true;\n      destroyDestroyables(this);\n    }\n\n    finalizeDestroy() {\n      resetCache(this);\n      this.isDestroyed = true;\n    }\n    /**\n     Clear either the entire cache or just the cache for a particular key.\n        @private\n     @method reset\n     @param {String} fullName optional key to reset; if missing, resets everything\n    */\n\n\n    reset(fullName) {\n      if (this.isDestroyed) return;\n\n      if (fullName === undefined) {\n        destroyDestroyables(this);\n        resetCache(this);\n      } else {\n        resetMember(this, this.registry.normalize(fullName));\n      }\n    }\n    /**\n     Returns an object that can be used to provide an owner to a\n     manually created instance.\n      @private\n     @method ownerInjection\n     @returns { Object }\n    */\n\n\n    ownerInjection() {\n      return {\n        [_owner.OWNER]: this.owner\n      };\n    }\n    /**\n     Given a fullName, return the corresponding factory. The consumer of the factory\n     is responsible for the destruction of any factory instances, as there is no\n     way for the container to ensure instances are destroyed when it itself is\n     destroyed.\n      @public\n     @method factoryFor\n     @param {String} fullName\n     @param {Object} [options]\n     @param {String} [options.source] The fullname of the request source (used for local lookup)\n     @return {any}\n     */\n\n\n    factoryFor(fullName, options = {}) {\n      if (this.isDestroyed) {\n        throw new Error(`Can not call \\`.factoryFor\\` after the owner has been destroyed`);\n      }\n\n      var normalizedName = this.registry.normalize(fullName);\n      (true && !(this.registry.isValidFullName(normalizedName)) && (0, _debug.assert)('fullName must be a proper full name', this.registry.isValidFullName(normalizedName)));\n      (true && !(false\n      /* EMBER_MODULE_UNIFICATION */\n      || !options.namespace) && (0, _debug.assert)('EMBER_MODULE_UNIFICATION must be enabled to pass a namespace option to factoryFor', false || !options.namespace));\n\n      if (options.source || options.namespace) {\n        normalizedName = this.registry.expandLocalLookup(fullName, options);\n\n        if (!normalizedName) {\n          return;\n        }\n      }\n\n      return factoryFor(this, normalizedName, fullName);\n    }\n\n  }\n\n  _exports.Container = Container;\n\n  if (true\n  /* DEBUG */\n  ) {\n    Container._leakTracking = leakTracking;\n  }\n  /*\n   * Wrap a factory manager in a proxy which will not permit properties to be\n   * set on the manager.\n   */\n\n\n  function wrapManagerInDeprecationProxy(manager) {\n    if (_utils.HAS_NATIVE_PROXY) {\n      var validator = {\n        set(_obj, prop) {\n          throw new Error(`You attempted to set \"${prop}\" on a factory manager created by container#factoryFor. A factory manager is a read-only construct.`);\n        }\n\n      }; // Note:\n      // We have to proxy access to the manager here so that private property\n      // access doesn't cause the above errors to occur.\n\n      var m = manager;\n      var proxiedManager = {\n        class: m.class,\n\n        create(props) {\n          return m.create(props);\n        }\n\n      };\n      var proxy = new Proxy(proxiedManager, validator);\n      FACTORY_FOR.set(proxy, manager);\n    }\n\n    return manager;\n  }\n\n  function isSingleton(container, fullName) {\n    return container.registry.getOption(fullName, 'singleton') !== false;\n  }\n\n  function isInstantiatable(container, fullName) {\n    return container.registry.getOption(fullName, 'instantiate') !== false;\n  }\n\n  function lookup(container, fullName, options = {}) {\n    (true && !(false\n    /* EMBER_MODULE_UNIFICATION */\n    || !options.namespace) && (0, _debug.assert)('EMBER_MODULE_UNIFICATION must be enabled to pass a namespace option to lookup', false || !options.namespace));\n    var normalizedName = fullName;\n\n    if (options.source || options.namespace) {\n      normalizedName = container.registry.expandLocalLookup(fullName, options);\n\n      if (!normalizedName) {\n        return;\n      }\n    }\n\n    if (options.singleton !== false) {\n      var cached = container.cache[normalizedName];\n\n      if (cached !== undefined) {\n        return cached;\n      }\n    }\n\n    return instantiateFactory(container, normalizedName, fullName, options);\n  }\n\n  function factoryFor(container, normalizedName, fullName) {\n    var cached = container.factoryManagerCache[normalizedName];\n\n    if (cached !== undefined) {\n      return cached;\n    }\n\n    var factory = container.registry.resolve(normalizedName);\n\n    if (factory === undefined) {\n      return;\n    }\n\n    if (true\n    /* DEBUG */\n    && factory && typeof factory._onLookup === 'function') {\n      factory._onLookup(fullName);\n    }\n\n    var manager = new FactoryManager(container, factory, fullName, normalizedName);\n\n    if (true\n    /* DEBUG */\n    ) {\n      manager = wrapManagerInDeprecationProxy(manager);\n    }\n\n    container.factoryManagerCache[normalizedName] = manager;\n    return manager;\n  }\n\n  function isSingletonClass(container, fullName, {\n    instantiate,\n    singleton\n  }) {\n    return singleton !== false && !instantiate && isSingleton(container, fullName) && !isInstantiatable(container, fullName);\n  }\n\n  function isSingletonInstance(container, fullName, {\n    instantiate,\n    singleton\n  }) {\n    return singleton !== false && instantiate !== false && isSingleton(container, fullName) && isInstantiatable(container, fullName);\n  }\n\n  function isFactoryClass(container, fullname, {\n    instantiate,\n    singleton\n  }) {\n    return instantiate === false && (singleton === false || !isSingleton(container, fullname)) && !isInstantiatable(container, fullname);\n  }\n\n  function isFactoryInstance(container, fullName, {\n    instantiate,\n    singleton\n  }) {\n    return instantiate !== false && (singleton !== false || isSingleton(container, fullName)) && isInstantiatable(container, fullName);\n  }\n\n  function instantiateFactory(container, normalizedName, fullName, options) {\n    var factoryManager = factoryFor(container, normalizedName, fullName);\n\n    if (factoryManager === undefined) {\n      return;\n    } // SomeClass { singleton: true, instantiate: true } | { singleton: true } | { instantiate: true } | {}\n    // By default majority of objects fall into this case\n\n\n    if (isSingletonInstance(container, fullName, options)) {\n      var instance = container.cache[normalizedName] = factoryManager.create(); // if this lookup happened _during_ destruction (emits a deprecation, but\n      // is still possible) ensure that it gets destroyed\n\n      if (container.isDestroying) {\n        if (typeof instance.destroy === 'function') {\n          instance.destroy();\n        }\n      }\n\n      return instance;\n    } // SomeClass { singleton: false, instantiate: true }\n\n\n    if (isFactoryInstance(container, fullName, options)) {\n      return factoryManager.create();\n    } // SomeClass { singleton: true, instantiate: false } | { instantiate: false } | { singleton: false, instantiation: false }\n\n\n    if (isSingletonClass(container, fullName, options) || isFactoryClass(container, fullName, options)) {\n      return factoryManager.class;\n    }\n\n    throw new Error('Could not create factory');\n  }\n\n  function processInjections(container, injections, result) {\n    if (true\n    /* DEBUG */\n    ) {\n      container.registry.validateInjections(injections);\n    }\n\n    var hash = result.injections;\n\n    if (hash === undefined) {\n      hash = result.injections = {};\n    }\n\n    for (var i = 0; i < injections.length; i++) {\n      var {\n        property,\n        specifier,\n        source\n      } = injections[i];\n\n      if (source) {\n        hash[property] = lookup(container, specifier, {\n          source\n        });\n      } else {\n        hash[property] = lookup(container, specifier);\n      }\n\n      if (!result.isDynamic) {\n        result.isDynamic = !isSingleton(container, specifier);\n      }\n    }\n  }\n\n  function buildInjections(container, typeInjections, injections) {\n    var result = {\n      injections: undefined,\n      isDynamic: false\n    };\n\n    if (typeInjections !== undefined) {\n      processInjections(container, typeInjections, result);\n    }\n\n    if (injections !== undefined) {\n      processInjections(container, injections, result);\n    }\n\n    return result;\n  }\n\n  function injectionsFor(container, fullName) {\n    var registry = container.registry;\n    var [type] = fullName.split(':');\n    var typeInjections = registry.getTypeInjections(type);\n    var injections = registry.getInjections(fullName);\n    return buildInjections(container, typeInjections, injections);\n  }\n\n  function destroyDestroyables(container) {\n    var cache = container.cache;\n    var keys = Object.keys(cache);\n\n    for (var i = 0; i < keys.length; i++) {\n      var key = keys[i];\n      var value = cache[key];\n\n      if (value.destroy) {\n        value.destroy();\n      }\n    }\n  }\n\n  function resetCache(container) {\n    container.cache = (0, _utils.dictionary)(null);\n    container.factoryManagerCache = (0, _utils.dictionary)(null);\n  }\n\n  function resetMember(container, fullName) {\n    var member = container.cache[fullName];\n    delete container.factoryManagerCache[fullName];\n\n    if (member) {\n      delete container.cache[fullName];\n\n      if (member.destroy) {\n        member.destroy();\n      }\n    }\n  }\n\n  var FACTORY_FOR = new WeakMap();\n  _exports.FACTORY_FOR = FACTORY_FOR;\n\n  class FactoryManager {\n    constructor(container, factory, fullName, normalizedName) {\n      this.container = container;\n      this.owner = container.owner;\n      this.class = factory;\n      this.fullName = fullName;\n      this.normalizedName = normalizedName;\n      this.madeToString = undefined;\n      this.injections = undefined;\n      FACTORY_FOR.set(this, this);\n    }\n\n    toString() {\n      if (this.madeToString === undefined) {\n        this.madeToString = this.container.registry.makeToString(this.class, this.fullName);\n      }\n\n      return this.madeToString;\n    }\n\n    create(options) {\n      var {\n        container\n      } = this;\n\n      if (container.isDestroyed) {\n        throw new Error(`Can not create new instances after the owner has been destroyed (you attempted to create ${this.fullName})`);\n      }\n\n      var injectionsCache = this.injections;\n\n      if (injectionsCache === undefined) {\n        var {\n          injections,\n          isDynamic\n        } = injectionsFor(this.container, this.normalizedName);\n        injectionsCache = injections;\n\n        if (!isDynamic) {\n          this.injections = injections;\n        }\n      }\n\n      var props = injectionsCache;\n\n      if (options !== undefined) {\n        props = (0, _polyfills.assign)({}, injectionsCache, options);\n      }\n\n      if (true\n      /* DEBUG */\n      ) {\n        var lazyInjections;\n        var validationCache = this.container.validationCache; // Ensure that all lazy injections are valid at instantiation time\n\n        if (!validationCache[this.fullName] && this.class && typeof this.class._lazyInjections === 'function') {\n          lazyInjections = this.class._lazyInjections();\n          lazyInjections = this.container.registry.normalizeInjectionsHash(lazyInjections);\n          this.container.registry.validateInjections(lazyInjections);\n        }\n\n        validationCache[this.fullName] = true;\n      }\n\n      if (!this.class.create) {\n        throw new Error(`Failed to create an instance of '${this.normalizedName}'. Most likely an improperly defined class or an invalid module export.`);\n      } // required to allow access to things like\n      // the customized toString, _debugContainerKey,\n      // owner, etc. without a double extend and without\n      // modifying the objects properties\n\n\n      if (typeof this.class._initFactory === 'function') {\n        this.class._initFactory(this);\n      } else {\n        // in the non-EmberObject case we need to still setOwner\n        // this is required for supporting glimmer environment and\n        // template instantiation which rely heavily on\n        // `options[OWNER]` being passed into `create`\n        // TODO: clean this up, and remove in future versions\n        if (options === undefined || props === undefined) {\n          // avoid mutating `props` here since they are the cached injections\n          props = (0, _polyfills.assign)({}, props);\n        }\n\n        (0, _owner.setOwner)(props, this.owner);\n      }\n\n      var instance = this.class.create(props);\n      FACTORY_FOR.set(instance, this);\n      return instance;\n    }\n\n  }\n\n  var VALID_FULL_NAME_REGEXP = /^[^:]+:[^:]+$/;\n  /**\n   A registry used to store factory and option information keyed\n   by type.\n  \n   A `Registry` stores the factory and option information needed by a\n   `Container` to instantiate and cache objects.\n  \n   The API for `Registry` is still in flux and should not be considered stable.\n  \n   @private\n   @class Registry\n   @since 1.11.0\n  */\n\n  class Registry {\n    constructor(options = {}) {\n      this.fallback = options.fallback || null;\n      this.resolver = options.resolver || null;\n      this.registrations = (0, _utils.dictionary)(options.registrations || null);\n      this._typeInjections = (0, _utils.dictionary)(null);\n      this._injections = (0, _utils.dictionary)(null);\n      this._localLookupCache = Object.create(null);\n      this._normalizeCache = (0, _utils.dictionary)(null);\n      this._resolveCache = (0, _utils.dictionary)(null);\n      this._failSet = new Set();\n      this._options = (0, _utils.dictionary)(null);\n      this._typeOptions = (0, _utils.dictionary)(null);\n    }\n    /**\n     A backup registry for resolving registrations when no matches can be found.\n        @private\n     @property fallback\n     @type Registry\n     */\n\n    /**\n     An object that has a `resolve` method that resolves a name.\n        @private\n     @property resolver\n     @type Resolver\n     */\n\n    /**\n     @private\n     @property registrations\n     @type InheritingDict\n     */\n\n    /**\n     @private\n        @property _typeInjections\n     @type InheritingDict\n     */\n\n    /**\n     @private\n        @property _injections\n     @type InheritingDict\n     */\n\n    /**\n     @private\n        @property _normalizeCache\n     @type InheritingDict\n     */\n\n    /**\n     @private\n        @property _resolveCache\n     @type InheritingDict\n     */\n\n    /**\n     @private\n        @property _options\n     @type InheritingDict\n     */\n\n    /**\n     @private\n        @property _typeOptions\n     @type InheritingDict\n     */\n\n    /**\n     Creates a container based on this registry.\n        @private\n     @method container\n     @param {Object} options\n     @return {Container} created container\n     */\n\n\n    container(options) {\n      return new Container(this, options);\n    }\n    /**\n     Registers a factory for later injection.\n        Example:\n        ```javascript\n     let registry = new Registry();\n        registry.register('model:user', Person, {singleton: false });\n     registry.register('fruit:favorite', Orange);\n     registry.register('communication:main', Email, {singleton: false});\n     ```\n        @private\n     @method register\n     @param {String} fullName\n     @param {Function} factory\n     @param {Object} options\n     */\n\n\n    register(fullName, factory, options = {}) {\n      (true && !(this.isValidFullName(fullName)) && (0, _debug.assert)('fullName must be a proper full name', this.isValidFullName(fullName)));\n      (true && !(factory !== undefined) && (0, _debug.assert)(`Attempting to register an unknown factory: '${fullName}'`, factory !== undefined));\n      var normalizedName = this.normalize(fullName);\n      (true && !(!this._resolveCache[normalizedName]) && (0, _debug.assert)(`Cannot re-register: '${fullName}', as it has already been resolved.`, !this._resolveCache[normalizedName]));\n\n      this._failSet.delete(normalizedName);\n\n      this.registrations[normalizedName] = factory;\n      this._options[normalizedName] = options;\n    }\n    /**\n     Unregister a fullName\n        ```javascript\n     let registry = new Registry();\n     registry.register('model:user', User);\n        registry.resolve('model:user').create() instanceof User //=> true\n        registry.unregister('model:user')\n     registry.resolve('model:user') === undefined //=> true\n     ```\n        @private\n     @method unregister\n     @param {String} fullName\n     */\n\n\n    unregister(fullName) {\n      (true && !(this.isValidFullName(fullName)) && (0, _debug.assert)('fullName must be a proper full name', this.isValidFullName(fullName)));\n      var normalizedName = this.normalize(fullName);\n      this._localLookupCache = Object.create(null);\n      delete this.registrations[normalizedName];\n      delete this._resolveCache[normalizedName];\n      delete this._options[normalizedName];\n\n      this._failSet.delete(normalizedName);\n    }\n    /**\n     Given a fullName return the corresponding factory.\n        By default `resolve` will retrieve the factory from\n     the registry.\n        ```javascript\n     let registry = new Registry();\n     registry.register('api:twitter', Twitter);\n        registry.resolve('api:twitter') // => Twitter\n     ```\n        Optionally the registry can be provided with a custom resolver.\n     If provided, `resolve` will first provide the custom resolver\n     the opportunity to resolve the fullName, otherwise it will fallback\n     to the registry.\n        ```javascript\n     let registry = new Registry();\n     registry.resolver = function(fullName) {\n        // lookup via the module system of choice\n      };\n        // the twitter factory is added to the module system\n     registry.resolve('api:twitter') // => Twitter\n     ```\n        @private\n     @method resolve\n     @param {String} fullName\n     @param {Object} [options]\n     @param {String} [options.source] the fullname of the request source (used for local lookups)\n     @return {Function} fullName's factory\n     */\n\n\n    resolve(fullName, options) {\n      var factory = resolve(this, this.normalize(fullName), options);\n\n      if (factory === undefined && this.fallback !== null) {\n        factory = this.fallback.resolve(...arguments);\n      }\n\n      return factory;\n    }\n    /**\n     A hook that can be used to describe how the resolver will\n     attempt to find the factory.\n        For example, the default Ember `.describe` returns the full\n     class name (including namespace) where Ember's resolver expects\n     to find the `fullName`.\n        @private\n     @method describe\n     @param {String} fullName\n     @return {string} described fullName\n     */\n\n\n    describe(fullName) {\n      if (this.resolver !== null && this.resolver.lookupDescription) {\n        return this.resolver.lookupDescription(fullName);\n      } else if (this.fallback !== null) {\n        return this.fallback.describe(fullName);\n      } else {\n        return fullName;\n      }\n    }\n    /**\n     A hook to enable custom fullName normalization behavior\n        @private\n     @method normalizeFullName\n     @param {String} fullName\n     @return {string} normalized fullName\n     */\n\n\n    normalizeFullName(fullName) {\n      if (this.resolver !== null && this.resolver.normalize) {\n        return this.resolver.normalize(fullName);\n      } else if (this.fallback !== null) {\n        return this.fallback.normalizeFullName(fullName);\n      } else {\n        return fullName;\n      }\n    }\n    /**\n     Normalize a fullName based on the application's conventions\n        @private\n     @method normalize\n     @param {String} fullName\n     @return {string} normalized fullName\n     */\n\n\n    normalize(fullName) {\n      return this._normalizeCache[fullName] || (this._normalizeCache[fullName] = this.normalizeFullName(fullName));\n    }\n    /**\n     @method makeToString\n        @private\n     @param {any} factory\n     @param {string} fullName\n     @return {function} toString function\n     */\n\n\n    makeToString(factory, fullName) {\n      if (this.resolver !== null && this.resolver.makeToString) {\n        return this.resolver.makeToString(factory, fullName);\n      } else if (this.fallback !== null) {\n        return this.fallback.makeToString(factory, fullName);\n      } else {\n        return factory.toString();\n      }\n    }\n    /**\n     Given a fullName check if the container is aware of its factory\n     or singleton instance.\n        @private\n     @method has\n     @param {String} fullName\n     @param {Object} [options]\n     @param {String} [options.source] the fullname of the request source (used for local lookups)\n     @return {Boolean}\n     */\n\n\n    has(fullName, options) {\n      if (!this.isValidFullName(fullName)) {\n        return false;\n      }\n\n      var source = options && options.source && this.normalize(options.source);\n      var namespace = options && options.namespace || undefined;\n      return has(this, this.normalize(fullName), source, namespace);\n    }\n    /**\n     Allow registering options for all factories of a type.\n        ```javascript\n     let registry = new Registry();\n     let container = registry.container();\n        // if all of type `connection` must not be singletons\n     registry.optionsForType('connection', { singleton: false });\n        registry.register('connection:twitter', TwitterConnection);\n     registry.register('connection:facebook', FacebookConnection);\n        let twitter = container.lookup('connection:twitter');\n     let twitter2 = container.lookup('connection:twitter');\n        twitter === twitter2; // => false\n        let facebook = container.lookup('connection:facebook');\n     let facebook2 = container.lookup('connection:facebook');\n        facebook === facebook2; // => false\n     ```\n        @private\n     @method optionsForType\n     @param {String} type\n     @param {Object} options\n     */\n\n\n    optionsForType(type, options) {\n      this._typeOptions[type] = options;\n    }\n\n    getOptionsForType(type) {\n      var optionsForType = this._typeOptions[type];\n\n      if (optionsForType === undefined && this.fallback !== null) {\n        optionsForType = this.fallback.getOptionsForType(type);\n      }\n\n      return optionsForType;\n    }\n    /**\n     @private\n     @method options\n     @param {String} fullName\n     @param {Object} options\n     */\n\n\n    options(fullName, options) {\n      var normalizedName = this.normalize(fullName);\n      this._options[normalizedName] = options;\n    }\n\n    getOptions(fullName) {\n      var normalizedName = this.normalize(fullName);\n      var options = this._options[normalizedName];\n\n      if (options === undefined && this.fallback !== null) {\n        options = this.fallback.getOptions(fullName);\n      }\n\n      return options;\n    }\n\n    getOption(fullName, optionName) {\n      var options = this._options[fullName];\n\n      if (options !== undefined && options[optionName] !== undefined) {\n        return options[optionName];\n      }\n\n      var type = fullName.split(':')[0];\n      options = this._typeOptions[type];\n\n      if (options && options[optionName] !== undefined) {\n        return options[optionName];\n      } else if (this.fallback !== null) {\n        return this.fallback.getOption(fullName, optionName);\n      }\n\n      return undefined;\n    }\n    /**\n     Used only via `injection`.\n        Provides a specialized form of injection, specifically enabling\n     all objects of one type to be injected with a reference to another\n     object.\n        For example, provided each object of type `controller` needed a `router`.\n     one would do the following:\n        ```javascript\n     let registry = new Registry();\n     let container = registry.container();\n        registry.register('router:main', Router);\n     registry.register('controller:user', UserController);\n     registry.register('controller:post', PostController);\n        registry.typeInjection('controller', 'router', 'router:main');\n        let user = container.lookup('controller:user');\n     let post = container.lookup('controller:post');\n        user.router instanceof Router; //=> true\n     post.router instanceof Router; //=> true\n        // both controllers share the same router\n     user.router === post.router; //=> true\n     ```\n        @private\n     @method typeInjection\n     @param {String} type\n     @param {String} property\n     @param {String} fullName\n     */\n\n\n    typeInjection(type, property, fullName) {\n      (true && !(this.isValidFullName(fullName)) && (0, _debug.assert)('fullName must be a proper full name', this.isValidFullName(fullName)));\n      var fullNameType = fullName.split(':')[0];\n      (true && !(fullNameType !== type) && (0, _debug.assert)(`Cannot inject a '${fullName}' on other ${type}(s).`, fullNameType !== type));\n      var injections = this._typeInjections[type] || (this._typeInjections[type] = []);\n      injections.push({\n        property,\n        specifier: fullName\n      });\n    }\n    /**\n     Defines injection rules.\n        These rules are used to inject dependencies onto objects when they\n     are instantiated.\n        Two forms of injections are possible:\n        * Injecting one fullName on another fullName\n     * Injecting one fullName on a type\n        Example:\n        ```javascript\n     let registry = new Registry();\n     let container = registry.container();\n        registry.register('source:main', Source);\n     registry.register('model:user', User);\n     registry.register('model:post', Post);\n        // injecting one fullName on another fullName\n     // eg. each user model gets a post model\n     registry.injection('model:user', 'post', 'model:post');\n        // injecting one fullName on another type\n     registry.injection('model', 'source', 'source:main');\n        let user = container.lookup('model:user');\n     let post = container.lookup('model:post');\n        user.source instanceof Source; //=> true\n     post.source instanceof Source; //=> true\n        user.post instanceof Post; //=> true\n        // and both models share the same source\n     user.source === post.source; //=> true\n     ```\n        @private\n     @method injection\n     @param {String} factoryName\n     @param {String} property\n     @param {String} injectionName\n     */\n\n\n    injection(fullName, property, injectionName) {\n      (true && !(this.isValidFullName(injectionName)) && (0, _debug.assert)(`Invalid injectionName, expected: 'type:name' got: ${injectionName}`, this.isValidFullName(injectionName)));\n      var normalizedInjectionName = this.normalize(injectionName);\n\n      if (fullName.indexOf(':') === -1) {\n        return this.typeInjection(fullName, property, normalizedInjectionName);\n      }\n\n      (true && !(this.isValidFullName(fullName)) && (0, _debug.assert)('fullName must be a proper full name', this.isValidFullName(fullName)));\n      var normalizedName = this.normalize(fullName);\n      var injections = this._injections[normalizedName] || (this._injections[normalizedName] = []);\n      injections.push({\n        property,\n        specifier: normalizedInjectionName\n      });\n    }\n    /**\n     @private\n     @method knownForType\n     @param {String} type the type to iterate over\n    */\n\n\n    knownForType(type) {\n      var localKnown = (0, _utils.dictionary)(null);\n      var registeredNames = Object.keys(this.registrations);\n\n      for (var index = 0; index < registeredNames.length; index++) {\n        var fullName = registeredNames[index];\n        var itemType = fullName.split(':')[0];\n\n        if (itemType === type) {\n          localKnown[fullName] = true;\n        }\n      }\n\n      var fallbackKnown, resolverKnown;\n\n      if (this.fallback !== null) {\n        fallbackKnown = this.fallback.knownForType(type);\n      }\n\n      if (this.resolver !== null && this.resolver.knownForType) {\n        resolverKnown = this.resolver.knownForType(type);\n      }\n\n      return (0, _polyfills.assign)({}, fallbackKnown, localKnown, resolverKnown);\n    }\n\n    isValidFullName(fullName) {\n      return VALID_FULL_NAME_REGEXP.test(fullName);\n    }\n\n    getInjections(fullName) {\n      var injections = this._injections[fullName];\n\n      if (this.fallback !== null) {\n        var fallbackInjections = this.fallback.getInjections(fullName);\n\n        if (fallbackInjections !== undefined) {\n          injections = injections === undefined ? fallbackInjections : injections.concat(fallbackInjections);\n        }\n      }\n\n      return injections;\n    }\n\n    getTypeInjections(type) {\n      var injections = this._typeInjections[type];\n\n      if (this.fallback !== null) {\n        var fallbackInjections = this.fallback.getTypeInjections(type);\n\n        if (fallbackInjections !== undefined) {\n          injections = injections === undefined ? fallbackInjections : injections.concat(fallbackInjections);\n        }\n      }\n\n      return injections;\n    }\n    /**\n     Given a fullName and a source fullName returns the fully resolved\n     fullName. Used to allow for local lookup.\n        ```javascript\n     let registry = new Registry();\n        // the twitter factory is added to the module system\n     registry.expandLocalLookup('component:post-title', { source: 'template:post' }) // => component:post/post-title\n     ```\n        @private\n     @method expandLocalLookup\n     @param {String} fullName\n     @param {Object} [options]\n     @param {String} [options.source] the fullname of the request source (used for local lookups)\n     @return {String} fullName\n     */\n\n\n    expandLocalLookup(fullName, options) {\n      if (this.resolver !== null && this.resolver.expandLocalLookup) {\n        (true && !(this.isValidFullName(fullName)) && (0, _debug.assert)('fullName must be a proper full name', this.isValidFullName(fullName)));\n        (true && !(!options.source || this.isValidFullName(options.source)) && (0, _debug.assert)('options.source must be a proper full name', !options.source || this.isValidFullName(options.source)));\n        var normalizedFullName = this.normalize(fullName);\n        var normalizedSource = this.normalize(options.source);\n        return expandLocalLookup(this, normalizedFullName, normalizedSource, options.namespace);\n      } else if (this.fallback !== null) {\n        return this.fallback.expandLocalLookup(fullName, options);\n      } else {\n        return null;\n      }\n    }\n\n  }\n\n  _exports.Registry = Registry;\n\n  if (true\n  /* DEBUG */\n  ) {\n    var proto = Registry.prototype;\n\n    proto.normalizeInjectionsHash = function (hash) {\n      var injections = [];\n\n      for (var key in hash) {\n        if (hash.hasOwnProperty(key)) {\n          var {\n            specifier,\n            source,\n            namespace\n          } = hash[key];\n          (true && !(this.isValidFullName(specifier)) && (0, _debug.assert)(`Expected a proper full name, given '${specifier}'`, this.isValidFullName(specifier)));\n          injections.push({\n            property: key,\n            specifier,\n            source,\n            namespace\n          });\n        }\n      }\n\n      return injections;\n    };\n\n    proto.validateInjections = function (injections) {\n      if (!injections) {\n        return;\n      }\n\n      for (var i = 0; i < injections.length; i++) {\n        var {\n          specifier,\n          source,\n          namespace\n        } = injections[i];\n        (true && !(this.has(specifier, {\n          source,\n          namespace\n        })) && (0, _debug.assert)(`Attempting to inject an unknown injection: '${specifier}'`, this.has(specifier, {\n          source,\n          namespace\n        })));\n      }\n    };\n  }\n\n  function expandLocalLookup(registry, normalizedName, normalizedSource, namespace) {\n    var cache = registry._localLookupCache;\n    var normalizedNameCache = cache[normalizedName];\n\n    if (!normalizedNameCache) {\n      normalizedNameCache = cache[normalizedName] = Object.create(null);\n    }\n\n    var cacheKey = namespace || normalizedSource;\n    var cached = normalizedNameCache[cacheKey];\n\n    if (cached !== undefined) {\n      return cached;\n    }\n\n    var expanded = registry.resolver.expandLocalLookup(normalizedName, normalizedSource, namespace);\n    return normalizedNameCache[cacheKey] = expanded;\n  }\n\n  function resolve(registry, _normalizedName, options) {\n    var normalizedName = _normalizedName; // when `source` is provided expand normalizedName\n    // and source into the full normalizedName\n\n    if (options !== undefined && (options.source || options.namespace)) {\n      normalizedName = registry.expandLocalLookup(_normalizedName, options);\n\n      if (!normalizedName) {\n        return;\n      }\n    }\n\n    var cached = registry._resolveCache[normalizedName];\n\n    if (cached !== undefined) {\n      return cached;\n    }\n\n    if (registry._failSet.has(normalizedName)) {\n      return;\n    }\n\n    var resolved;\n\n    if (registry.resolver) {\n      resolved = registry.resolver.resolve(normalizedName);\n    }\n\n    if (resolved === undefined) {\n      resolved = registry.registrations[normalizedName];\n    }\n\n    if (resolved === undefined) {\n      registry._failSet.add(normalizedName);\n    } else {\n      registry._resolveCache[normalizedName] = resolved;\n    }\n\n    return resolved;\n  }\n\n  function has(registry, fullName, source, namespace) {\n    return registry.resolve(fullName, {\n      source,\n      namespace\n    }) !== undefined;\n  }\n\n  var privateNames = (0, _utils.dictionary)(null);\n  var privateSuffix = `${Math.random()}${Date.now()}`.replace('.', '');\n\n  function privatize([fullName]) {\n    var name = privateNames[fullName];\n\n    if (name) {\n      return name;\n    }\n\n    var [type, rawName] = fullName.split(':');\n    return privateNames[fullName] = (0, _utils.intern)(`${type}:${rawName}-${privateSuffix}`);\n  }\n  /*\n  Public API for the container is still in flux.\n  The public API, specified on the application namespace should be considered the stable API.\n  // @module container\n    @private\n  */\n\n});","define(\"@ember/-internals/environment/index\", [\"exports\", \"@ember/debug\", \"@ember/deprecated-features\"], function (_exports, _debug, _deprecatedFeatures) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.getLookup = getLookup;\n  _exports.setLookup = setLookup;\n  _exports.getENV = getENV;\n  _exports.ENV = _exports.context = _exports.global = void 0;\n\n  // from lodash to catch fake globals\n  function checkGlobal(value) {\n    return value && value.Object === Object ? value : undefined;\n  } // element ids can ruin global miss checks\n\n\n  function checkElementIdShadowing(value) {\n    return value && value.nodeType === undefined ? value : undefined;\n  } // export real global\n\n\n  var global$1 = checkGlobal(checkElementIdShadowing(typeof global === 'object' && global)) || checkGlobal(typeof self === 'object' && self) || checkGlobal(typeof window === 'object' && window) || typeof mainContext !== 'undefined' && mainContext || // set before strict mode in Ember loader/wrapper\n  new Function('return this')(); // eval outside of strict mode\n\n  _exports.global = global$1;\n\n  var context = function (global, Ember) {\n    return Ember === undefined ? {\n      imports: global,\n      exports: global,\n      lookup: global\n    } : {\n      // import jQuery\n      imports: Ember.imports || global,\n      // export Ember\n      exports: Ember.exports || global,\n      // search for Namespaces\n      lookup: Ember.lookup || global\n    };\n  }(global$1, global$1.Ember);\n\n  _exports.context = context;\n\n  function getLookup() {\n    return context.lookup;\n  }\n\n  function setLookup(value) {\n    context.lookup = value;\n  }\n  /**\n    The hash of environment variables used to control various configuration\n    settings. To specify your own or override default settings, add the\n    desired properties to a global hash named `EmberENV` (or `ENV` for\n    backwards compatibility with earlier versions of Ember). The `EmberENV`\n    hash must be created before loading Ember.\n  \n    @class EmberENV\n    @type Object\n    @public\n  */\n\n\n  var ENV = {\n    ENABLE_OPTIONAL_FEATURES: false,\n\n    /**\n      Determines whether Ember should add to `Array`, `Function`, and `String`\n      native object prototypes, a few extra methods in order to provide a more\n      friendly API.\n         We generally recommend leaving this option set to true however, if you need\n      to turn it off, you can add the configuration property\n      `EXTEND_PROTOTYPES` to `EmberENV` and set it to `false`.\n         Note, when disabled (the default configuration for Ember Addons), you will\n      instead have to access all methods and functions from the Ember\n      namespace.\n         @property EXTEND_PROTOTYPES\n      @type Boolean\n      @default true\n      @for EmberENV\n      @public\n    */\n    EXTEND_PROTOTYPES: {\n      Array: true,\n      Function: true,\n      String: true\n    },\n\n    /**\n      The `LOG_STACKTRACE_ON_DEPRECATION` property, when true, tells Ember to log\n      a full stack trace during deprecation warnings.\n         @property LOG_STACKTRACE_ON_DEPRECATION\n      @type Boolean\n      @default true\n      @for EmberENV\n      @public\n    */\n    LOG_STACKTRACE_ON_DEPRECATION: true,\n\n    /**\n      The `LOG_VERSION` property, when true, tells Ember to log versions of all\n      dependent libraries in use.\n         @property LOG_VERSION\n      @type Boolean\n      @default true\n      @for EmberENV\n      @public\n    */\n    LOG_VERSION: true,\n    RAISE_ON_DEPRECATION: false,\n    STRUCTURED_PROFILE: false,\n\n    /**\n      Whether to insert a `<div class=\"ember-view\" />` wrapper around the\n      application template. See RFC #280.\n         This is not intended to be set directly, as the implementation may change in\n      the future. Use `@ember/optional-features` instead.\n         @property _APPLICATION_TEMPLATE_WRAPPER\n      @for EmberENV\n      @type Boolean\n      @default true\n      @private\n    */\n    _APPLICATION_TEMPLATE_WRAPPER: true,\n\n    /**\n      Whether to use Glimmer Component semantics (as opposed to the classic \"Curly\"\n      components semantics) for template-only components. See RFC #278.\n         This is not intended to be set directly, as the implementation may change in\n      the future. Use `@ember/optional-features` instead.\n         @property _TEMPLATE_ONLY_GLIMMER_COMPONENTS\n      @for EmberENV\n      @type Boolean\n      @default false\n      @private\n    */\n    _TEMPLATE_ONLY_GLIMMER_COMPONENTS: false,\n\n    /**\n      Whether to perform extra bookkeeping needed to make the `captureRenderTree`\n      API work.\n         This has to be set before the ember JavaScript code is evaluated. This is\n      usually done by setting `window.EmberENV = { _DEBUG_RENDER_TREE: true };`\n      or `window.ENV = { _DEBUG_RENDER_TREE: true };` before the \"vendor\"\n      `<script>` tag in `index.html`.\n         Setting the flag after Ember is already loaded will not work correctly. It\n      may appear to work somewhat, but fundamentally broken.\n         This is not intended to be set directly. Ember Inspector will enable the\n      flag on behalf of the user as needed.\n         This flag is always on in development mode.\n         The flag is off by default in production mode, due to the cost associated\n      with the the bookkeeping work.\n         The expected flow is that Ember Inspector will ask the user to refresh the\n      page after enabling the feature. It could also offer a feature where the\n      user add some domains to the \"always on\" list. In either case, Ember\n      Inspector will inject the code on the page to set the flag if needed.\n         @property _DEBUG_RENDER_TREE\n      @for EmberENV\n      @type Boolean\n      @default false\n      @private\n    */\n    _DEBUG_RENDER_TREE: true\n    /* DEBUG */\n    ,\n\n    /**\n      Whether the app is using jQuery. See RFC #294.\n         This is not intended to be set directly, as the implementation may change in\n      the future. Use `@ember/optional-features` instead.\n         @property _JQUERY_INTEGRATION\n      @for EmberENV\n      @type Boolean\n      @default true\n      @private\n    */\n    _JQUERY_INTEGRATION: true,\n\n    /**\n      Whether the app defaults to using async observers.\n         This is not intended to be set directly, as the implementation may change in\n      the future. Use `@ember/optional-features` instead.\n         @property _DEFAULT_ASYNC_OBSERVERS\n      @for EmberENV\n      @type Boolean\n      @default false\n      @private\n    */\n    _DEFAULT_ASYNC_OBSERVERS: false,\n\n    /**\n      Controls the maximum number of scheduled rerenders without \"settling\". In general,\n      applications should not need to modify this environment variable, but please\n      open an issue so that we can determine if a better default value is needed.\n         @property _RERENDER_LOOP_LIMIT\n      @for EmberENV\n      @type number\n      @default 1000\n      @private\n     */\n    _RERENDER_LOOP_LIMIT: 1000,\n    EMBER_LOAD_HOOKS: {},\n    FEATURES: {}\n  };\n  _exports.ENV = ENV;\n  var providedEnv = global$1.EmberENV;\n\n  if (providedEnv === undefined) {\n    providedEnv = global$1.ENV;\n    (true && !(providedEnv === undefined) && (0, _debug.deprecate)(\"Configuring Ember's boot options via `window.ENV` is deprecated, please migrate to `window.EmberENV` instead.\", providedEnv === undefined, {\n      id: 'ember-environment.window.env',\n      until: '3.17.0'\n    }));\n  }\n\n  (EmberENV => {\n    if (typeof EmberENV !== 'object' || EmberENV === null) return;\n\n    for (var flag in EmberENV) {\n      if (!EmberENV.hasOwnProperty(flag) || flag === 'EXTEND_PROTOTYPES' || flag === 'EMBER_LOAD_HOOKS') continue;\n      var defaultValue = ENV[flag];\n\n      if (defaultValue === true) {\n        ENV[flag] = EmberENV[flag] !== false;\n      } else if (defaultValue === false) {\n        ENV[flag] = EmberENV[flag] === true;\n      }\n    }\n\n    var {\n      EXTEND_PROTOTYPES\n    } = EmberENV;\n\n    if (EXTEND_PROTOTYPES !== undefined) {\n      if (typeof EXTEND_PROTOTYPES === 'object' && EXTEND_PROTOTYPES !== null) {\n        ENV.EXTEND_PROTOTYPES.String = EXTEND_PROTOTYPES.String !== false;\n\n        if (_deprecatedFeatures.FUNCTION_PROTOTYPE_EXTENSIONS) {\n          ENV.EXTEND_PROTOTYPES.Function = EXTEND_PROTOTYPES.Function !== false;\n        }\n\n        ENV.EXTEND_PROTOTYPES.Array = EXTEND_PROTOTYPES.Array !== false;\n      } else {\n        var isEnabled = EXTEND_PROTOTYPES !== false;\n        ENV.EXTEND_PROTOTYPES.String = isEnabled;\n\n        if (_deprecatedFeatures.FUNCTION_PROTOTYPE_EXTENSIONS) {\n          ENV.EXTEND_PROTOTYPES.Function = isEnabled;\n        }\n\n        ENV.EXTEND_PROTOTYPES.Array = isEnabled;\n      }\n    } // TODO this does not seem to be used by anything,\n    //      can we remove it? do we need to deprecate it?\n\n\n    var {\n      EMBER_LOAD_HOOKS\n    } = EmberENV;\n\n    if (typeof EMBER_LOAD_HOOKS === 'object' && EMBER_LOAD_HOOKS !== null) {\n      for (var hookName in EMBER_LOAD_HOOKS) {\n        if (!EMBER_LOAD_HOOKS.hasOwnProperty(hookName)) continue;\n        var hooks = EMBER_LOAD_HOOKS[hookName];\n\n        if (Array.isArray(hooks)) {\n          ENV.EMBER_LOAD_HOOKS[hookName] = hooks.filter(hook => typeof hook === 'function');\n        }\n      }\n    }\n\n    var {\n      FEATURES\n    } = EmberENV;\n\n    if (typeof FEATURES === 'object' && FEATURES !== null) {\n      for (var feature in FEATURES) {\n        if (!FEATURES.hasOwnProperty(feature)) continue;\n        ENV.FEATURES[feature] = FEATURES[feature] === true;\n      }\n    }\n\n    if (true\n    /* DEBUG */\n    ) {\n      ENV._DEBUG_RENDER_TREE = true;\n    }\n  })(providedEnv);\n\n  function getENV() {\n    return ENV;\n  }\n});","define(\"@ember/-internals/error-handling/index\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.getOnerror = getOnerror;\n  _exports.setOnerror = setOnerror;\n  _exports.getDispatchOverride = getDispatchOverride;\n  _exports.setDispatchOverride = setDispatchOverride;\n  _exports.onErrorTarget = void 0;\n  var onerror;\n  var onErrorTarget = {\n    get onerror() {\n      return onerror;\n    }\n\n  }; // Ember.onerror getter\n\n  _exports.onErrorTarget = onErrorTarget;\n\n  function getOnerror() {\n    return onerror;\n  } // Ember.onerror setter\n\n\n  function setOnerror(handler) {\n    onerror = handler;\n  }\n\n  var dispatchOverride; // allows testing adapter to override dispatch\n\n  function getDispatchOverride() {\n    return dispatchOverride;\n  }\n\n  function setDispatchOverride(handler) {\n    dispatchOverride = handler;\n  }\n});","define(\"@ember/-internals/extension-support/index\", [\"exports\", \"@ember/-internals/extension-support/lib/data_adapter\", \"@ember/-internals/extension-support/lib/container_debug_adapter\"], function (_exports, _data_adapter, _container_debug_adapter) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"DataAdapter\", {\n    enumerable: true,\n    get: function () {\n      return _data_adapter.default;\n    }\n  });\n  Object.defineProperty(_exports, \"ContainerDebugAdapter\", {\n    enumerable: true,\n    get: function () {\n      return _container_debug_adapter.default;\n    }\n  });\n});","define(\"@ember/-internals/extension-support/lib/container_debug_adapter\", [\"exports\", \"@ember/string\", \"@ember/-internals/runtime\"], function (_exports, _string, _runtime) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n  @module @ember/debug\n  */\n\n  /**\n    The `ContainerDebugAdapter` helps the container and resolver interface\n    with tools that debug Ember such as the\n    [Ember Inspector](https://github.com/emberjs/ember-inspector)\n    for Chrome and Firefox.\n  \n    This class can be extended by a custom resolver implementer\n    to override some of the methods with library-specific code.\n  \n    The methods likely to be overridden are:\n  \n    * `canCatalogEntriesByType`\n    * `catalogEntriesByType`\n  \n    The adapter will need to be registered\n    in the application's container as `container-debug-adapter:main`.\n  \n    Example:\n  \n    ```javascript\n    Application.initializer({\n      name: \"containerDebugAdapter\",\n  \n      initialize(application) {\n        application.register('container-debug-adapter:main', require('app/container-debug-adapter'));\n      }\n    });\n    ```\n  \n    @class ContainerDebugAdapter\n    @extends EmberObject\n    @since 1.5.0\n    @public\n  */\n  var _default = _runtime.Object.extend({\n    /**\n      The resolver instance of the application\n      being debugged. This property will be injected\n      on creation.\n       @property resolver\n      @default null\n      @public\n    */\n    resolver: null,\n\n    /**\n      Returns true if it is possible to catalog a list of available\n      classes in the resolver for a given type.\n       @method canCatalogEntriesByType\n      @param {String} type The type. e.g. \"model\", \"controller\", \"route\".\n      @return {boolean} whether a list is available for this type.\n      @public\n    */\n    canCatalogEntriesByType(type) {\n      if (type === 'model' || type === 'template') {\n        return false;\n      }\n\n      return true;\n    },\n\n    /**\n      Returns the available classes a given type.\n       @method catalogEntriesByType\n      @param {String} type The type. e.g. \"model\", \"controller\", \"route\".\n      @return {Array} An array of strings.\n      @public\n    */\n    catalogEntriesByType(type) {\n      var namespaces = (0, _runtime.A)(_runtime.Namespace.NAMESPACES);\n      var types = (0, _runtime.A)();\n      var typeSuffixRegex = new RegExp(`${(0, _string.classify)(type)}$`);\n      namespaces.forEach(namespace => {\n        for (var key in namespace) {\n          if (!namespace.hasOwnProperty(key)) {\n            continue;\n          }\n\n          if (typeSuffixRegex.test(key)) {\n            var klass = namespace[key];\n\n            if ((0, _runtime.typeOf)(klass) === 'class') {\n              types.push((0, _string.dasherize)(key.replace(typeSuffixRegex, '')));\n            }\n          }\n        }\n      });\n      return types;\n    }\n\n  });\n\n  _exports.default = _default;\n});","define(\"@ember/-internals/extension-support/lib/data_adapter\", [\"exports\", \"@ember/-internals/owner\", \"@ember/runloop\", \"@ember/-internals/metal\", \"@ember/string\", \"@ember/-internals/runtime\"], function (_exports, _owner, _runloop, _metal, _string, _runtime) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n  @module @ember/debug\n  */\n\n  /**\n    The `DataAdapter` helps a data persistence library\n    interface with tools that debug Ember such\n    as the [Ember Inspector](https://github.com/emberjs/ember-inspector)\n    for Chrome and Firefox.\n  \n    This class will be extended by a persistence library\n    which will override some of the methods with\n    library-specific code.\n  \n    The methods likely to be overridden are:\n  \n    * `getFilters`\n    * `detect`\n    * `columnsForType`\n    * `getRecords`\n    * `getRecordColumnValues`\n    * `getRecordKeywords`\n    * `getRecordFilterValues`\n    * `getRecordColor`\n    * `observeRecord`\n  \n    The adapter will need to be registered\n    in the application's container as `dataAdapter:main`.\n  \n    Example:\n  \n    ```javascript\n    Application.initializer({\n      name: \"data-adapter\",\n  \n      initialize: function(application) {\n        application.register('data-adapter:main', DS.DataAdapter);\n      }\n    });\n    ```\n  \n    @class DataAdapter\n    @extends EmberObject\n    @public\n  */\n  var _default = _runtime.Object.extend({\n    init() {\n      this._super(...arguments);\n\n      this.releaseMethods = (0, _runtime.A)();\n    },\n\n    /**\n      The container-debug-adapter which is used\n      to list all models.\n       @property containerDebugAdapter\n      @default undefined\n      @since 1.5.0\n      @public\n    **/\n    containerDebugAdapter: undefined,\n\n    /**\n      The number of attributes to send\n      as columns. (Enough to make the record\n      identifiable).\n       @private\n      @property attributeLimit\n      @default 3\n      @since 1.3.0\n    */\n    attributeLimit: 3,\n\n    /**\n       Ember Data > v1.0.0-beta.18\n       requires string model names to be passed\n       around instead of the actual factories.\n        This is a stamp for the Ember Inspector\n       to differentiate between the versions\n       to be able to support older versions too.\n        @public\n       @property acceptsModelName\n     */\n    acceptsModelName: true,\n\n    /**\n      Stores all methods that clear observers.\n      These methods will be called on destruction.\n       @private\n      @property releaseMethods\n      @since 1.3.0\n    */\n    releaseMethods: (0, _runtime.A)(),\n\n    /**\n      Specifies how records can be filtered.\n      Records returned will need to have a `filterValues`\n      property with a key for every name in the returned array.\n       @public\n      @method getFilters\n      @return {Array} List of objects defining filters.\n       The object should have a `name` and `desc` property.\n    */\n    getFilters() {\n      return (0, _runtime.A)();\n    },\n\n    /**\n      Fetch the model types and observe them for changes.\n       @public\n      @method watchModelTypes\n       @param {Function} typesAdded Callback to call to add types.\n      Takes an array of objects containing wrapped types (returned from `wrapModelType`).\n       @param {Function} typesUpdated Callback to call when a type has changed.\n      Takes an array of objects containing wrapped types.\n       @return {Function} Method to call to remove all observers\n    */\n    watchModelTypes(typesAdded, typesUpdated) {\n      var modelTypes = this.getModelTypes();\n      var releaseMethods = (0, _runtime.A)();\n      var typesToSend;\n      typesToSend = modelTypes.map(type => {\n        var klass = type.klass;\n        var wrapped = this.wrapModelType(klass, type.name);\n        releaseMethods.push(this.observeModelType(type.name, typesUpdated));\n        return wrapped;\n      });\n      typesAdded(typesToSend);\n\n      var release = () => {\n        releaseMethods.forEach(fn => fn());\n        this.releaseMethods.removeObject(release);\n      };\n\n      this.releaseMethods.pushObject(release);\n      return release;\n    },\n\n    _nameToClass(type) {\n      if (typeof type === 'string') {\n        var owner = (0, _owner.getOwner)(this);\n        var Factory = owner.factoryFor(`model:${type}`);\n        type = Factory && Factory.class;\n      }\n\n      return type;\n    },\n\n    /**\n      Fetch the records of a given type and observe them for changes.\n       @public\n      @method watchRecords\n       @param {String} modelName The model name.\n       @param {Function} recordsAdded Callback to call to add records.\n      Takes an array of objects containing wrapped records.\n      The object should have the following properties:\n        columnValues: {Object} The key and value of a table cell.\n        object: {Object} The actual record object.\n       @param {Function} recordsUpdated Callback to call when a record has changed.\n      Takes an array of objects containing wrapped records.\n       @param {Function} recordsRemoved Callback to call when a record has removed.\n      Takes the following parameters:\n        index: The array index where the records were removed.\n        count: The number of records removed.\n       @return {Function} Method to call to remove all observers.\n    */\n    watchRecords(modelName, recordsAdded, recordsUpdated, recordsRemoved) {\n      var releaseMethods = (0, _runtime.A)();\n\n      var klass = this._nameToClass(modelName);\n\n      var records = this.getRecords(klass, modelName);\n      var release;\n\n      function recordUpdated(updatedRecord) {\n        recordsUpdated([updatedRecord]);\n      }\n\n      var recordsToSend = records.map(record => {\n        releaseMethods.push(this.observeRecord(record, recordUpdated));\n        return this.wrapRecord(record);\n      });\n\n      var contentDidChange = (array, idx, removedCount, addedCount) => {\n        for (var i = idx; i < idx + addedCount; i++) {\n          var record = (0, _metal.objectAt)(array, i);\n          var wrapped = this.wrapRecord(record);\n          releaseMethods.push(this.observeRecord(record, recordUpdated));\n          recordsAdded([wrapped]);\n        }\n\n        if (removedCount) {\n          recordsRemoved(idx, removedCount);\n        }\n      };\n\n      var observer = {\n        didChange: contentDidChange,\n\n        willChange() {\n          return this;\n        }\n\n      };\n      (0, _metal.addArrayObserver)(records, this, observer);\n\n      release = () => {\n        releaseMethods.forEach(fn => fn());\n        (0, _metal.removeArrayObserver)(records, this, observer);\n        this.releaseMethods.removeObject(release);\n      };\n\n      recordsAdded(recordsToSend);\n      this.releaseMethods.pushObject(release);\n      return release;\n    },\n\n    /**\n      Clear all observers before destruction\n      @private\n      @method willDestroy\n    */\n    willDestroy() {\n      this._super(...arguments);\n\n      this.releaseMethods.forEach(fn => fn());\n    },\n\n    /**\n      Detect whether a class is a model.\n       Test that against the model class\n      of your persistence library.\n       @public\n      @method detect\n      @return boolean Whether the class is a model class or not.\n    */\n    detect() {\n      return false;\n    },\n\n    /**\n      Get the columns for a given model type.\n       @public\n      @method columnsForType\n      @return {Array} An array of columns of the following format:\n       name: {String} The name of the column.\n       desc: {String} Humanized description (what would show in a table column name).\n    */\n    columnsForType() {\n      return (0, _runtime.A)();\n    },\n\n    /**\n      Adds observers to a model type class.\n       @private\n      @method observeModelType\n      @param {String} modelName The model type name.\n      @param {Function} typesUpdated Called when a type is modified.\n      @return {Function} The function to call to remove observers.\n    */\n    observeModelType(modelName, typesUpdated) {\n      var klass = this._nameToClass(modelName);\n\n      var records = this.getRecords(klass, modelName);\n\n      function onChange() {\n        typesUpdated([this.wrapModelType(klass, modelName)]);\n      }\n\n      var observer = {\n        didChange(array, idx, removedCount, addedCount) {\n          // Only re-fetch records if the record count changed\n          // (which is all we care about as far as model types are concerned).\n          if (removedCount > 0 || addedCount > 0) {\n            (0, _runloop.scheduleOnce)('actions', this, onChange);\n          }\n        },\n\n        willChange() {\n          return this;\n        }\n\n      };\n      (0, _metal.addArrayObserver)(records, this, observer);\n\n      var release = () => (0, _metal.removeArrayObserver)(records, this, observer);\n\n      return release;\n    },\n\n    /**\n      Wraps a given model type and observes changes to it.\n       @private\n      @method wrapModelType\n      @param {Class} klass A model class.\n      @param {String} modelName Name of the class.\n      @return {Object} Contains the wrapped type and the function to remove observers\n      Format:\n        type: {Object} The wrapped type.\n          The wrapped type has the following format:\n            name: {String} The name of the type.\n            count: {Integer} The number of records available.\n            columns: {Columns} An array of columns to describe the record.\n            object: {Class} The actual Model type class.\n        release: {Function} The function to remove observers.\n    */\n    wrapModelType(klass, name) {\n      var records = this.getRecords(klass, name);\n      var typeToSend;\n      typeToSend = {\n        name,\n        count: (0, _metal.get)(records, 'length'),\n        columns: this.columnsForType(klass),\n        object: klass\n      };\n      return typeToSend;\n    },\n\n    /**\n      Fetches all models defined in the application.\n       @private\n      @method getModelTypes\n      @return {Array} Array of model types.\n    */\n    getModelTypes() {\n      var containerDebugAdapter = this.get('containerDebugAdapter');\n      var types;\n\n      if (containerDebugAdapter.canCatalogEntriesByType('model')) {\n        types = containerDebugAdapter.catalogEntriesByType('model');\n      } else {\n        types = this._getObjectsOnNamespaces();\n      } // New adapters return strings instead of classes.\n\n\n      types = (0, _runtime.A)(types).map(name => {\n        return {\n          klass: this._nameToClass(name),\n          name\n        };\n      });\n      types = (0, _runtime.A)(types).filter(type => this.detect(type.klass));\n      return (0, _runtime.A)(types);\n    },\n\n    /**\n      Loops over all namespaces and all objects\n      attached to them.\n       @private\n      @method _getObjectsOnNamespaces\n      @return {Array} Array of model type strings.\n    */\n    _getObjectsOnNamespaces() {\n      var namespaces = (0, _runtime.A)(_runtime.Namespace.NAMESPACES);\n      var types = (0, _runtime.A)();\n      namespaces.forEach(namespace => {\n        for (var key in namespace) {\n          if (!namespace.hasOwnProperty(key)) {\n            continue;\n          } // Even though we will filter again in `getModelTypes`,\n          // we should not call `lookupFactory` on non-models\n\n\n          if (!this.detect(namespace[key])) {\n            continue;\n          }\n\n          var name = (0, _string.dasherize)(key);\n          types.push(name);\n        }\n      });\n      return types;\n    },\n\n    /**\n      Fetches all loaded records for a given type.\n       @public\n      @method getRecords\n      @return {Array} An array of records.\n       This array will be observed for changes,\n       so it should update when new records are added/removed.\n    */\n    getRecords() {\n      return (0, _runtime.A)();\n    },\n\n    /**\n      Wraps a record and observers changes to it.\n       @private\n      @method wrapRecord\n      @param {Object} record The record instance.\n      @return {Object} The wrapped record. Format:\n      columnValues: {Array}\n      searchKeywords: {Array}\n    */\n    wrapRecord(record) {\n      var recordToSend = {\n        object: record\n      };\n      recordToSend.columnValues = this.getRecordColumnValues(record);\n      recordToSend.searchKeywords = this.getRecordKeywords(record);\n      recordToSend.filterValues = this.getRecordFilterValues(record);\n      recordToSend.color = this.getRecordColor(record);\n      return recordToSend;\n    },\n\n    /**\n      Gets the values for each column.\n       @public\n      @method getRecordColumnValues\n      @return {Object} Keys should match column names defined\n      by the model type.\n    */\n    getRecordColumnValues() {\n      return {};\n    },\n\n    /**\n      Returns keywords to match when searching records.\n       @public\n      @method getRecordKeywords\n      @return {Array} Relevant keywords for search.\n    */\n    getRecordKeywords() {\n      return (0, _runtime.A)();\n    },\n\n    /**\n      Returns the values of filters defined by `getFilters`.\n       @public\n      @method getRecordFilterValues\n      @param {Object} record The record instance.\n      @return {Object} The filter values.\n    */\n    getRecordFilterValues() {\n      return {};\n    },\n\n    /**\n      Each record can have a color that represents its state.\n       @public\n      @method getRecordColor\n      @param {Object} record The record instance\n      @return {String} The records color.\n        Possible options: black, red, blue, green.\n    */\n    getRecordColor() {\n      return null;\n    },\n\n    /**\n      Observes all relevant properties and re-sends the wrapped record\n      when a change occurs.\n       @public\n      @method observerRecord\n      @return {Function} The function to call to remove all observers.\n    */\n    observeRecord() {\n      return function () {};\n    }\n\n  });\n\n  _exports.default = _default;\n});","define(\"@ember/-internals/glimmer/index\", [\"exports\", \"@ember/polyfills\", \"@glimmer/opcode-compiler\", \"@ember/-internals/metal\", \"@ember/-internals/owner\", \"@ember/-internals/runtime\", \"@ember/-internals/utils\", \"@ember/-internals/views\", \"@ember/debug\", \"@glimmer/reference\", \"@glimmer/runtime\", \"@glimmer/validator\", \"@ember/-internals/browser-environment\", \"@ember/instrumentation\", \"@ember/service\", \"@ember/runloop\", \"@ember/-internals/environment\", \"@glimmer/util\", \"@ember/deprecated-features\", \"@ember/string\", \"@ember/-internals/container\", \"@glimmer/node\", \"@ember/-internals/routing\", \"@ember/component/template-only\", \"@ember/error\", \"rsvp\"], function (_exports, _polyfills, _opcodeCompiler, _metal, _owner, _runtime, _utils, _views, _debug, _reference, _runtime2, _validator, _browserEnvironment, _instrumentation, _service, _runloop, _environment2, _util, _deprecatedFeatures, _string, _container, _node, _routing, _templateOnly, _error, _rsvp) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.template = template;\n  _exports.helper = helper;\n  _exports.escapeExpression = escapeExpression;\n  _exports.htmlSafe = htmlSafe;\n  _exports.isHTMLSafe = isHTMLSafe;\n  _exports._resetRenderers = _resetRenderers;\n  _exports.renderSettled = renderSettled;\n  _exports.getTemplate = getTemplate;\n  _exports.setTemplate = setTemplate;\n  _exports.hasTemplate = hasTemplate;\n  _exports.getTemplates = getTemplates;\n  _exports.setTemplates = setTemplates;\n  _exports.setupEngineRegistry = setupEngineRegistry;\n  _exports.setupApplicationRegistry = setupApplicationRegistry;\n  _exports._registerMacros = registerMacros;\n  _exports.capabilities = capabilities;\n  _exports.setComponentManager = setComponentManager;\n  _exports.getComponentManager = getComponentManager;\n  _exports.setModifierManager = setModifierManager;\n  _exports.getModifierManager = getModifierManager;\n  _exports.modifierCapabilities = capabilities$1;\n  _exports.setComponentTemplate = setComponentTemplate;\n  _exports.getComponentTemplate = getComponentTemplate;\n  Object.defineProperty(_exports, \"DOMChanges\", {\n    enumerable: true,\n    get: function () {\n      return _runtime2.DOMChanges;\n    }\n  });\n  Object.defineProperty(_exports, \"DOMTreeConstruction\", {\n    enumerable: true,\n    get: function () {\n      return _runtime2.DOMTreeConstruction;\n    }\n  });\n  Object.defineProperty(_exports, \"isSerializationFirstNode\", {\n    enumerable: true,\n    get: function () {\n      return _runtime2.isSerializationFirstNode;\n    }\n  });\n  Object.defineProperty(_exports, \"NodeDOMTreeConstruction\", {\n    enumerable: true,\n    get: function () {\n      return _node.NodeDOMTreeConstruction;\n    }\n  });\n  _exports.OutletView = _exports.INVOKE = _exports.AbstractComponentManager = _exports._experimentalMacros = _exports.InteractiveRenderer = _exports.InertRenderer = _exports.Renderer = _exports.SafeString = _exports.Helper = _exports.Component = _exports.LinkComponent = _exports.TextArea = _exports.TextField = _exports.Checkbox = _exports.templateCacheCounters = _exports.RootTemplate = void 0;\n\n  function isTemplateFactory(template) {\n    return typeof template === 'function';\n  }\n\n  var counters = {\n    cacheHit: 0,\n    cacheMiss: 0\n  };\n  _exports.templateCacheCounters = counters;\n\n  function template(json) {\n    var glimmerFactory = (0, _opcodeCompiler.templateFactory)(json);\n    var cache = new WeakMap();\n    var meta = glimmerFactory.meta;\n\n    var factory = owner => {\n      var result = cache.get(owner);\n\n      if (result === undefined) {\n        counters.cacheMiss++;\n        result = glimmerFactory.create((0, _polyfills.assign)({\n          owner\n        }, meta));\n        cache.set(owner, result);\n      } else {\n        counters.cacheHit++;\n      }\n\n      return result;\n    };\n\n    factory.__id = glimmerFactory.id;\n    factory.__meta = meta;\n    return factory;\n  }\n\n  var RootTemplate = template({\n    \"id\": \"s5o9bxSn\",\n    \"block\": \"{\\\"symbols\\\":[],\\\"statements\\\":[[1,[30,[36,0],[[32,0]],null]]],\\\"hasEval\\\":false,\\\"upvars\\\":[\\\"component\\\"]}\",\n    \"meta\": {\n      \"moduleName\": \"packages/@ember/-internals/glimmer/lib/templates/root.hbs\"\n    }\n  });\n  _exports.RootTemplate = RootTemplate;\n  var DIRTY_TAG = (0, _utils.symbol)('DIRTY_TAG');\n  var ARGS = (0, _utils.symbol)('ARGS');\n  var IS_DISPATCHING_ATTRS = (0, _utils.symbol)('IS_DISPATCHING_ATTRS');\n  var HAS_BLOCK = (0, _utils.symbol)('HAS_BLOCK');\n  var BOUNDS = (0, _utils.symbol)('BOUNDS');\n  /**\n  @module @ember/component\n  */\n\n  /**\n    A component is an isolated piece of UI, represented by a template and an\n    optional class. When a component has a class, its template's `this` value\n    is an instance of the component class.\n  \n    ## Template-only Components\n  \n    The simplest way to create a component is to create a template file in\n    `app/templates/components`. For example, if you name a template\n    `app/templates/components/person-profile.hbs`:\n  \n    ```app/templates/components/person-profile.hbs\n    <h1>{{@person.name}}</h1>\n    <img src={{@person.avatar}}>\n    <p class='signature'>{{@person.signature}}</p>\n    ```\n  \n    You will be able to use `<PersonProfile />` to invoke this component elsewhere\n    in your application:\n  \n    ```app/templates/application.hbs\n    <PersonProfile @person={{this.currentUser}} />\n    ```\n  \n    Note that component names are capitalized here in order to distinguish them\n    from regular HTML elements, but they are dasherized in the file system.\n  \n    While the angle bracket invocation form is generally preferred, it is also\n    possible to invoke the same component with the `{{person-profile}}` syntax:\n  \n    ```app/templates/application.hbs\n    {{person-profile person=this.currentUser}}\n    ```\n  \n    Note that with this syntax, you use dashes in the component name and\n    arguments are passed without the `@` sign.\n  \n    In both cases, Ember will render the content of the component template we\n    created above. The end result will be something like this:\n  \n    ```html\n    <h1>Tomster</h1>\n    <img src=\"https://emberjs.com/tomster.jpg\">\n    <p class='signature'>Out of office this week</p>\n    ```\n  \n    ## File System Nesting\n  \n    Components can be nested inside sub-folders for logical groupping. For\n    example, if we placed our template in\n    `app/templates/components/person/short-profile.hbs`, we can invoke it as\n    `<Person::ShortProfile />`:\n  \n    ```app/templates/application.hbs\n    <Person::ShortProfile @person={{this.currentUser}} />\n    ```\n  \n    Or equivalently, `{{person/short-profile}}`:\n  \n    ```app/templates/application.hbs\n    {{person/short-profile person=this.currentUser}}\n    ```\n  \n    ## Yielding Contents\n  \n    You can use `yield` inside a template to include the **contents** of any block\n    attached to the component. The block will be executed in its original context:\n  \n    ```handlebars\n    <PersonProfile @person={{this.currentUser}}>\n      <p>Admin mode</p>\n      {{! Executed in the current context. }}\n    </PersonProfile>\n    ```\n  \n    or\n  \n    ```handlebars\n    {{#person-profile person=this.currentUser}}\n      <p>Admin mode</p>\n      {{! Executed in the current context. }}\n    {{/person-profile}}\n    ```\n  \n    ```app/templates/components/person-profile.hbs\n    <h1>{{@person.name}}</h1>\n    {{yield}}\n    ```\n  \n    ## Customizing Components With JavaScript\n  \n    If you want to customize the component in order to handle events, transform\n    arguments or maintain internal state, you implement a subclass of `Component`.\n  \n    One example is to add computed properties to your component:\n  \n    ```app/components/person-profile.js\n    import Component from '@ember/component';\n  \n    export default Component.extend({\n      displayName: computed('person.title', 'person.firstName', 'person.lastName', function() {\n        let { title, firstName, lastName } = this;\n  \n        if (title) {\n          return `${title} ${lastName}`;\n        } else {\n          return `${firstName} ${lastName}`;\n        }\n      })\n    });\n    ```\n  \n    And then use it in the component's template:\n  \n    ```app/templates/components/person-profile.hbs\n    <h1>{{this.displayName}}</h1>\n    {{yield}}\n    ```\n  \n    ## Customizing a Component's HTML Element in JavaScript\n  \n    ### HTML Tag\n  \n    The default HTML tag name used for a component's HTML representation is `div`.\n    This can be customized by setting the `tagName` property.\n  \n    Consider the following component class:\n  \n    ```app/components/emphasized-paragraph.js\n    import Component from '@ember/component';\n  \n    export default Component.extend({\n      tagName: 'em'\n    });\n    ```\n  \n    When invoked, this component would produce output that looks something like\n    this:\n  \n    ```html\n    <em id=\"ember1\" class=\"ember-view\"></em>\n    ```\n  \n    ### HTML `class` Attribute\n  \n    The HTML `class` attribute of a component's tag can be set by providing a\n    `classNames` property that is set to an array of strings:\n  \n    ```app/components/my-widget.js\n    import Component from '@ember/component';\n  \n    export default Component.extend({\n      classNames: ['my-class', 'my-other-class']\n    });\n    ```\n  \n    Invoking this component will produce output that looks like this:\n  \n    ```html\n    <div id=\"ember1\" class=\"ember-view my-class my-other-class\"></div>\n    ```\n  \n    `class` attribute values can also be set by providing a `classNameBindings`\n    property set to an array of properties names for the component. The return\n    value of these properties will be added as part of the value for the\n    components's `class` attribute. These properties can be computed properties:\n  \n    ```app/components/my-widget.js\n    import Component from '@ember/component';\n    import { computed } from '@ember/object';\n  \n    export default Component.extend({\n      classNames: ['my-class', 'my-other-class'],\n      classNameBindings: ['propertyA', 'propertyB'],\n  \n      propertyA: 'from-a',\n      propertyB: computed(function() {\n        if (someLogic) { return 'from-b'; }\n      })\n    });\n    ```\n  \n    Invoking this component will produce HTML that looks like:\n  \n    ```html\n    <div id=\"ember1\" class=\"ember-view my-class my-other-class from-a from-b\"></div>\n    ```\n  \n    Note that `classNames` and `classNameBindings` is in addition to the `class`\n    attribute passed with the angle bracket invocation syntax. Therefore, if this\n    component was invoked like so:\n  \n    ```handlebars\n    <MyWidget class=\"from-invocation\" />\n    ```\n  \n    The resulting HTML will look similar to this:\n  \n    ```html\n    <div id=\"ember1\" class=\"from-invocation ember-view my-class my-other-class from-a from-b\"></div>\n    ```\n  \n    If the value of a class name binding returns a boolean the property name\n    itself will be used as the class name if the property is true. The class name\n    will not be added if the value is `false` or `undefined`.\n  \n    ```app/components/my-widget.js\n    import Component from '@ember/component';\n  \n    export default Component.extend({\n      classNameBindings: ['hovered'],\n  \n      hovered: true\n    });\n    ```\n  \n    Invoking this component will produce HTML that looks like:\n  \n    ```html\n    <div id=\"ember1\" class=\"ember-view hovered\"></div>\n    ```\n  \n    ### Custom Class Names for Boolean Values\n  \n    When using boolean class name bindings you can supply a string value other\n    than the property name for use as the `class` HTML attribute by appending the\n    preferred value after a \":\" character when defining the binding:\n  \n    ```app/components/my-widget.js\n    import Component from '@ember/component';\n  \n    export default Component.extend({\n      classNameBindings: ['awesome:so-very-cool'],\n  \n      awesome: true\n    });\n    ```\n  \n    Invoking this component will produce HTML that looks like:\n  \n    ```html\n    <div id=\"ember1\" class=\"ember-view so-very-cool\"></div>\n    ```\n  \n    Boolean value class name bindings whose property names are in a\n    camelCase-style format will be converted to a dasherized format:\n  \n    ```app/components/my-widget.js\n    import Component from '@ember/component';\n  \n    export default Component.extend({\n      classNameBindings: ['isUrgent'],\n  \n      isUrgent: true\n    });\n    ```\n  \n    Invoking this component will produce HTML that looks like:\n  \n    ```html\n    <div id=\"ember1\" class=\"ember-view is-urgent\"></div>\n    ```\n  \n    Class name bindings can also refer to object values that are found by\n    traversing a path relative to the component itself:\n  \n    ```app/components/my-widget.js\n    import Component from '@ember/component';\n    import EmberObject from '@ember/object';\n  \n    export default Component.extend({\n      classNameBindings: ['messages.empty'],\n  \n      messages: EmberObject.create({\n        empty: true\n      })\n    });\n    ```\n  \n    Invoking this component will produce HTML that looks like:\n  \n    ```html\n    <div id=\"ember1\" class=\"ember-view empty\"></div>\n    ```\n  \n    If you want to add a class name for a property which evaluates to true and\n    and a different class name if it evaluates to false, you can pass a binding\n    like this:\n  \n    ```app/components/my-widget.js\n    import Component from '@ember/component';\n  \n    export default Component.extend({\n      classNameBindings: ['isEnabled:enabled:disabled'],\n      isEnabled: true\n    });\n    ```\n  \n    Invoking this component will produce HTML that looks like:\n  \n    ```html\n    <div id=\"ember1\" class=\"ember-view enabled\"></div>\n    ```\n  \n    When isEnabled is `false`, the resulting HTML representation looks like this:\n  \n    ```html\n    <div id=\"ember1\" class=\"ember-view disabled\"></div>\n    ```\n  \n    This syntax offers the convenience to add a class if a property is `false`:\n  \n    ```app/components/my-widget.js\n    import Component from '@ember/component';\n  \n    // Applies no class when isEnabled is true and class 'disabled' when isEnabled is false\n    export default Component.extend({\n      classNameBindings: ['isEnabled::disabled'],\n      isEnabled: true\n    });\n    ```\n  \n    Invoking this component when the `isEnabled` property is true will produce\n    HTML that looks like:\n  \n    ```html\n    <div id=\"ember1\" class=\"ember-view\"></div>\n    ```\n  \n    Invoking it when the `isEnabled` property on the component is `false` will\n    produce HTML that looks like:\n  \n    ```html\n    <div id=\"ember1\" class=\"ember-view disabled\"></div>\n    ```\n  \n    Updates to the value of a class name binding will result in automatic update\n    of the  HTML `class` attribute in the component's rendered HTML\n    representation. If the value becomes `false` or `undefined` the class name\n    will be removed.\n  \n    Both `classNames` and `classNameBindings` are concatenated properties. See\n    [EmberObject](/ember/release/classes/EmberObject) documentation for more\n    information about concatenated properties.\n  \n    ### Other HTML Attributes\n  \n    The HTML attribute section of a component's tag can be set by providing an\n    `attributeBindings` property set to an array of property names on the component.\n    The return value of these properties will be used as the value of the component's\n    HTML associated attribute:\n  \n    ```app/components/my-anchor.js\n    import Component from '@ember/component';\n  \n    export default Component.extend({\n      tagName: 'a',\n      attributeBindings: ['href'],\n  \n      href: 'http://google.com'\n    });\n    ```\n  \n    Invoking this component will produce HTML that looks like:\n  \n    ```html\n    <a id=\"ember1\" class=\"ember-view\" href=\"http://google.com\"></a>\n    ```\n  \n    One property can be mapped on to another by placing a \":\" between\n    the source property and the destination property:\n  \n    ```app/components/my-anchor.js\n    import Component from '@ember/component';\n  \n    export default Component.extend({\n      tagName: 'a',\n      attributeBindings: ['url:href'],\n  \n      url: 'http://google.com'\n    });\n    ```\n  \n    Invoking this component will produce HTML that looks like:\n  \n    ```html\n    <a id=\"ember1\" class=\"ember-view\" href=\"http://google.com\"></a>\n    ```\n  \n    HTML attributes passed with angle bracket invocations will take precedence\n    over those specified in `attributeBindings`. Therefore, if this component was\n    invoked like so:\n  \n    ```handlebars\n    <MyAnchor href=\"http://bing.com\" @url=\"http://google.com\" />\n    ```\n  \n    The resulting HTML will looks like this:\n  \n    ```html\n    <a id=\"ember1\" class=\"ember-view\" href=\"http://bing.com\"></a>\n    ```\n  \n    Note that the `href` attribute is ultimately set to `http://bing.com`,\n    despite it having attribute binidng to the `url` property, which was\n    set to `http://google.com`.\n  \n    Namespaced attributes (e.g. `xlink:href`) are supported, but have to be\n    mapped, since `:` is not a valid character for properties in Javascript:\n  \n    ```app/components/my-use.js\n    import Component from '@ember/component';\n  \n    export default Component.extend({\n      tagName: 'use',\n      attributeBindings: ['xlinkHref:xlink:href'],\n  \n      xlinkHref: '#triangle'\n    });\n    ```\n  \n    Invoking this component will produce HTML that looks like:\n  \n    ```html\n    <use xlink:href=\"#triangle\"></use>\n    ```\n  \n    If the value of a property monitored by `attributeBindings` is a boolean, the\n    attribute will be present or absent depending on the value:\n  \n    ```app/components/my-text-input.js\n    import Component from '@ember/component';\n  \n    export default Component.extend({\n      tagName: 'input',\n      attributeBindings: ['disabled'],\n  \n      disabled: false\n    });\n    ```\n  \n    Invoking this component will produce HTML that looks like:\n  \n    ```html\n    <input id=\"ember1\" class=\"ember-view\" />\n    ```\n  \n    `attributeBindings` can refer to computed properties:\n  \n    ```app/components/my-text-input.js\n    import Component from '@ember/component';\n    import { computed } from '@ember/object';\n  \n    export default Component.extend({\n      tagName: 'input',\n      attributeBindings: ['disabled'],\n  \n      disabled: computed(function() {\n        if (someLogic) {\n          return true;\n        } else {\n          return false;\n        }\n      })\n    });\n    ```\n  \n    To prevent setting an attribute altogether, use `null` or `undefined` as the\n    value of the property used in `attributeBindings`:\n  \n    ```app/components/my-text-input.js\n    import Component from '@ember/component';\n  \n    export default Component.extend({\n      tagName: 'form',\n      attributeBindings: ['novalidate'],\n      novalidate: null\n    });\n    ```\n  \n    Updates to the property of an attribute binding will result in automatic\n    update of the  HTML attribute in the component's HTML output.\n  \n    `attributeBindings` is a concatenated property. See\n    [EmberObject](/ember/release/classes/EmberObject) documentation for more\n    information about concatenated properties.\n  \n    ## Layouts\n  \n    The `layout` property can be used to dynamically specify a template associated\n    with a component class, instead of relying on Ember to link together a\n    component class and a template based on file names.\n  \n    In general, applications should not use this feature, but it's commonly used\n    in addons for historical reasons.\n  \n    The `layout` property should be set to the default export of a template\n    module, which is the name of a template file without the `.hbs` extension.\n  \n    ```app/templates/components/person-profile.hbs\n    <h1>Person's Title</h1>\n    <div class='details'>{{yield}}</div>\n    ```\n  \n    ```app/components/person-profile.js\n      import Component from '@ember/component';\n      import layout from '../templates/components/person-profile';\n  \n      export default Component.extend({\n        layout\n      });\n    ```\n  \n    If you invoke the component:\n  \n    ```handlebars\n    <PersonProfile>\n      <h2>Chief Basket Weaver</h2>\n      <h3>Fisherman Industries</h3>\n    </PersonProfile>\n    ```\n  \n    or\n  \n    ```handlebars\n    {{#person-profile}}\n      <h2>Chief Basket Weaver</h2>\n      <h3>Fisherman Industries</h3>\n    {{/person-profile}}\n    ```\n  \n    It will result in the following HTML output:\n  \n    ```html\n    <h1>Person's Title</h1>\n      <div class=\"details\">\n      <h2>Chief Basket Weaver</h2>\n      <h3>Fisherman Industries</h3>\n    </div>\n    ```\n  \n    ## Handling Browser Events\n  \n    Components can respond to user-initiated events in one of three ways: passing\n    actions with angle bracket invocation, adding event handler methods to the\n    component's class, or adding actions to the component's template.\n  \n    ### Passing Actions With Angle Bracket Invocation\n  \n    For one-off events specific to particular instance of a component, it is possible\n    to pass actions to the component's element using angle bracket invocation syntax.\n  \n    ```handlebars\n    <MyWidget {{action 'firstWidgetClicked'}} />\n  \n    <MyWidget {{action 'secondWidgetClicked'}} />\n    ```\n  \n    In this case, when the first component is clicked on, Ember will invoke the\n    `firstWidgetClicked` action. When the second component is clicked on, Ember\n    will invoke the `secondWidgetClicked` action instead.\n  \n    Besides `{{action}}`, it is also possible to pass any arbitrary element modifiers\n    using the angle bracket invocation syntax.\n  \n    ### Event Handler Methods\n  \n    Components can also respond to user-initiated events by implementing a method\n    that matches the event name. This approach is appropriate when the same event\n    should be handled by all instances of the same component.\n  \n    An event object will be passed as the argument to the event handler method.\n  \n    ```app/components/my-widget.js\n    import Component from '@ember/component';\n  \n    export default Component.extend({\n      click(event) {\n        // `event.target` is either the component's element or one of its children\n        let tag = event.target.tagName.toLowerCase();\n        console.log('clicked on a `<${tag}>` HTML element!');\n      }\n    });\n    ```\n  \n    In this example, whenever the user clicked anywhere inside the component, it\n    will log a message to the console.\n  \n    It is possible to handle event types other than `click` by implementing the\n    following event handler methods. In addition, custom events can be registered\n    by using `Application.customEvents`.\n  \n    Touch events:\n  \n    * `touchStart`\n    * `touchMove`\n    * `touchEnd`\n    * `touchCancel`\n  \n    Keyboard events:\n  \n    * `keyDown`\n    * `keyUp`\n    * `keyPress`\n  \n    Mouse events:\n  \n    * `mouseDown`\n    * `mouseUp`\n    * `contextMenu`\n    * `click`\n    * `doubleClick`\n    * `focusIn`\n    * `focusOut`\n  \n    Form events:\n  \n    * `submit`\n    * `change`\n    * `focusIn`\n    * `focusOut`\n    * `input`\n  \n    Drag and drop events:\n  \n    * `dragStart`\n    * `drag`\n    * `dragEnter`\n    * `dragLeave`\n    * `dragOver`\n    * `dragEnd`\n    * `drop`\n  \n    ### `{{action}}` Helper\n  \n    Instead of handling all events of a particular type anywhere inside the\n    component's element, you may instead want to limit it to a particular\n    element in the component's template. In this case, it would be more\n    convenient to implement an action instead.\n  \n    For example, you could implement the action `hello` for the `person-profile`\n    component:\n  \n    ```app/components/person-profile.js\n    import Component from '@ember/component';\n  \n    export default Component.extend({\n      actions: {\n        hello(name) {\n          console.log(\"Hello\", name);\n        }\n      }\n    });\n    ```\n  \n    And then use it in the component's template:\n  \n    ```app/templates/components/person-profile.hbs\n    <h1>{{@person.name}}</h1>\n  \n    <button {{action 'hello' @person.name}}>\n      Say Hello to {{@person.name}}\n    </button>\n    ```\n  \n    When the user clicks the button, Ember will invoke the `hello` action,\n    passing in the current value of `@person.name` as an argument.\n  \n    See [Ember.Templates.helpers.action](/ember/release/classes/Ember.Templates.helpers/methods/action?anchor=action).\n  \n    @class Component\n    @extends Ember.CoreView\n    @uses Ember.TargetActionSupport\n    @uses Ember.ClassNamesSupport\n    @uses Ember.ActionSupport\n    @uses Ember.ViewMixin\n    @uses Ember.ViewStateSupport\n    @public\n  */\n\n  var Component = _views.CoreView.extend(_views.ChildViewsSupport, _views.ViewStateSupport, _views.ClassNamesSupport, _runtime.TargetActionSupport, _views.ActionSupport, _views.ViewMixin, {\n    isComponent: true,\n\n    init() {\n      this._super(...arguments);\n\n      this[IS_DISPATCHING_ATTRS] = false;\n      this[DIRTY_TAG] = (0, _validator.createTag)();\n      this[BOUNDS] = null;\n\n      if (true\n      /* DEBUG */\n      && this.renderer._destinedForDOM && this.tagName === '') {\n        var eventNames = [];\n        var eventDispatcher = (0, _owner.getOwner)(this).lookup('event_dispatcher:main');\n        var events = eventDispatcher && eventDispatcher._finalEvents || {}; // tslint:disable-next-line:forin\n\n        for (var key in events) {\n          var methodName = events[key];\n\n          if (typeof this[methodName] === 'function') {\n            eventNames.push(methodName);\n          }\n        } // If in a tagless component, assert that no event handlers are defined\n\n\n        (true && !(!eventNames.length) && (0, _debug.assert)( // tslint:disable-next-line:max-line-length\n        `You can not define \\`${eventNames}\\` function(s) to handle DOM event in the \\`${this}\\` tagless component since it doesn't have any DOM element.`, !eventNames.length));\n      }\n\n      (true && !(this.mouseEnter === undefined) && (0, _debug.deprecate)(`${this}: Using \\`mouseEnter\\` event handler methods in components has been deprecated.`, this.mouseEnter === undefined, {\n        id: 'ember-views.event-dispatcher.mouseenter-leave-move',\n        until: '4.0.0',\n        url: 'https://emberjs.com/deprecations/v3.x#toc_component-mouseenter-leave-move'\n      }));\n      (true && !(this.mouseLeave === undefined) && (0, _debug.deprecate)(`${this}: Using \\`mouseLeave\\` event handler methods in components has been deprecated.`, this.mouseLeave === undefined, {\n        id: 'ember-views.event-dispatcher.mouseenter-leave-move',\n        until: '4.0.0',\n        url: 'https://emberjs.com/deprecations/v3.x#toc_component-mouseenter-leave-move'\n      }));\n      (true && !(this.mouseMove === undefined) && (0, _debug.deprecate)(`${this}: Using \\`mouseMove\\` event handler methods in components has been deprecated.`, this.mouseMove === undefined, {\n        id: 'ember-views.event-dispatcher.mouseenter-leave-move',\n        until: '4.0.0',\n        url: 'https://emberjs.com/deprecations/v3.x#toc_component-mouseenter-leave-move'\n      }));\n    },\n\n    rerender() {\n      (0, _validator.dirtyTag)(this[DIRTY_TAG]);\n\n      this._super();\n    },\n\n    [_metal.PROPERTY_DID_CHANGE](key, value) {\n      if (this[IS_DISPATCHING_ATTRS]) {\n        return;\n      }\n\n      var args = this[ARGS];\n      var reference = args !== undefined ? args[key] : undefined;\n\n      if (reference !== undefined && reference[_reference.UPDATE_REFERENCED_VALUE] !== undefined) {\n        reference[_reference.UPDATE_REFERENCED_VALUE](arguments.length === 2 ? value : (0, _metal.get)(this, key));\n      }\n    },\n\n    getAttr(key) {\n      // TODO Intimate API should be deprecated\n      return this.get(key);\n    },\n\n    /**\n      Normally, Ember's component model is \"write-only\". The component takes a\n      bunch of attributes that it got passed in, and uses them to render its\n      template.\n       One nice thing about this model is that if you try to set a value to the\n      same thing as last time, Ember (through HTMLBars) will avoid doing any\n      work on the DOM.\n       This is not just a performance optimization. If an attribute has not\n      changed, it is important not to clobber the element's \"hidden state\".\n      For example, if you set an input's `value` to the same value as before,\n      it will clobber selection state and cursor position. In other words,\n      setting an attribute is not **always** idempotent.\n       This method provides a way to read an element's attribute and also\n      update the last value Ember knows about at the same time. This makes\n      setting an attribute idempotent.\n       In particular, what this means is that if you get an `<input>` element's\n      `value` attribute and then re-render the template with the same value,\n      it will avoid clobbering the cursor and selection position.\n      Since most attribute sets are idempotent in the browser, you typically\n      can get away with reading attributes using jQuery, but the most reliable\n      way to do so is through this method.\n      @method readDOMAttr\n       @param {String} name the name of the attribute\n      @return String\n      @public\n     */\n    readDOMAttr(name) {\n      // TODO revisit this\n      var _element = (0, _views.getViewElement)(this);\n\n      (true && !(_element !== null) && (0, _debug.assert)(`Cannot call \\`readDOMAttr\\` on ${this} which does not have an element`, _element !== null));\n      var element = _element;\n      var isSVG = element.namespaceURI === \"http://www.w3.org/2000/svg\"\n      /* SVG */\n      ;\n      var {\n        type,\n        normalized\n      } = (0, _runtime2.normalizeProperty)(element, name);\n\n      if (isSVG || type === 'attr') {\n        return element.getAttribute(normalized);\n      }\n\n      return element[normalized];\n    },\n\n    /**\n     The WAI-ARIA role of the control represented by this view. For example, a\n     button may have a role of type 'button', or a pane may have a role of\n     type 'alertdialog'. This property is used by assistive software to help\n     visually challenged users navigate rich web applications.\n      The full list of valid WAI-ARIA roles is available at:\n     [https://www.w3.org/TR/wai-aria/#roles_categorization](https://www.w3.org/TR/wai-aria/#roles_categorization)\n      @property ariaRole\n     @type String\n     @default null\n     @public\n     */\n\n    /**\n     Enables components to take a list of parameters as arguments.\n     For example, a component that takes two parameters with the names\n     `name` and `age`:\n      ```app/components/my-component.js\n     import Component from '@ember/component';\n      let MyComponent = Component.extend();\n      MyComponent.reopenClass({\n       positionalParams: ['name', 'age']\n     });\n      export default MyComponent;\n     ```\n      It can then be invoked like this:\n      ```hbs\n     {{my-component \"John\" 38}}\n     ```\n      The parameters can be referred to just like named parameters:\n      ```hbs\n     Name: {{name}}, Age: {{age}}.\n     ```\n      Using a string instead of an array allows for an arbitrary number of\n     parameters:\n      ```app/components/my-component.js\n     import Component from '@ember/component';\n      let MyComponent = Component.extend();\n      MyComponent.reopenClass({\n       positionalParams: 'names'\n     });\n      export default MyComponent;\n     ```\n      It can then be invoked like this:\n      ```hbs\n     {{my-component \"John\" \"Michael\" \"Scott\"}}\n     ```\n     The parameters can then be referred to by enumerating over the list:\n      ```hbs\n     {{#each names as |name|}}{{name}}{{/each}}\n     ```\n      @static\n     @public\n     @property positionalParams\n     @since 1.13.0\n     */\n\n    /**\n     Called when the attributes passed into the component have been updated.\n     Called both during the initial render of a container and during a rerender.\n     Can be used in place of an observer; code placed here will be executed\n     every time any attribute updates.\n     @method didReceiveAttrs\n     @public\n     @since 1.13.0\n     */\n    didReceiveAttrs() {},\n\n    /**\n     Called when the attributes passed into the component have been updated.\n     Called both during the initial render of a container and during a rerender.\n     Can be used in place of an observer; code placed here will be executed\n     every time any attribute updates.\n     @event didReceiveAttrs\n     @public\n     @since 1.13.0\n     */\n\n    /**\n     Called after a component has been rendered, both on initial render and\n     in subsequent rerenders.\n     @method didRender\n     @public\n     @since 1.13.0\n     */\n    didRender() {},\n\n    /**\n     Called after a component has been rendered, both on initial render and\n     in subsequent rerenders.\n     @event didRender\n     @public\n     @since 1.13.0\n     */\n\n    /**\n     Called before a component has been rendered, both on initial render and\n     in subsequent rerenders.\n     @method willRender\n     @public\n     @since 1.13.0\n     */\n    willRender() {},\n\n    /**\n     Called before a component has been rendered, both on initial render and\n     in subsequent rerenders.\n     @event willRender\n     @public\n     @since 1.13.0\n     */\n\n    /**\n     Called when the attributes passed into the component have been changed.\n     Called only during a rerender, not during an initial render.\n     @method didUpdateAttrs\n     @public\n     @since 1.13.0\n     */\n    didUpdateAttrs() {},\n\n    /**\n     Called when the attributes passed into the component have been changed.\n     Called only during a rerender, not during an initial render.\n     @event didUpdateAttrs\n     @public\n     @since 1.13.0\n     */\n\n    /**\n     Called when the component is about to update and rerender itself.\n     Called only during a rerender, not during an initial render.\n     @method willUpdate\n     @public\n     @since 1.13.0\n     */\n    willUpdate() {},\n\n    /**\n     Called when the component is about to update and rerender itself.\n     Called only during a rerender, not during an initial render.\n     @event willUpdate\n     @public\n     @since 1.13.0\n     */\n\n    /**\n     Called when the component has updated and rerendered itself.\n     Called only during a rerender, not during an initial render.\n     @method didUpdate\n     @public\n     @since 1.13.0\n     */\n    didUpdate() {}\n\n  });\n\n  _exports.Component = Component;\n\n  Component.toString = () => '@ember/component';\n\n  Component.reopenClass({\n    isComponentFactory: true,\n    positionalParams: []\n  });\n  (0, _runtime.setFrameworkClass)(Component);\n  var layout = template({\n    \"id\": \"SWbqsLhV\",\n    \"block\": \"{\\\"symbols\\\":[],\\\"statements\\\":[],\\\"hasEval\\\":false,\\\"upvars\\\":[]}\",\n    \"meta\": {\n      \"moduleName\": \"packages/@ember/-internals/glimmer/lib/templates/empty.hbs\"\n    }\n  });\n  /**\n  @module @ember/component\n  */\n\n  /**\n    The internal class used to create text inputs when the `{{input}}`\n    helper is used with `type` of `checkbox`.\n  \n    See [Ember.Templates.helpers.input](/ember/release/classes/Ember.Templates.helpers/methods/input?anchor=input)  for usage details.\n  \n    ## Direct manipulation of `checked`\n  \n    The `checked` attribute of an `Checkbox` object should always be set\n    through the Ember object or by interacting with its rendered element\n    representation via the mouse, keyboard, or touch. Updating the value of the\n    checkbox via jQuery will result in the checked value of the object and its\n    element losing synchronization.\n  \n    ## Layout and LayoutName properties\n  \n    Because HTML `input` elements are self closing `layout` and `layoutName`\n    properties will not be applied.\n  \n    @class Checkbox\n    @extends Component\n    @public\n  */\n\n  var Checkbox = Component.extend({\n    layout,\n\n    /**\n      By default, this component will add the `ember-checkbox` class to the component's element.\n         @property classNames\n      @type Array | String\n      @default ['ember-checkbox']\n      @public\n     */\n    classNames: ['ember-checkbox'],\n    tagName: 'input',\n\n    /**\n      By default this component will forward a number of arguments to attributes on the the\n      component's element:\n         * indeterminate\n      * disabled\n      * tabindex\n      * name\n      * autofocus\n      * required\n      * form\n         When invoked with curly braces, this is the exhaustive list of HTML attributes you can\n      customize (i.e. `{{input type=\"checkbox\" disabled=true}}`).\n         When invoked with angle bracket invocation, this list is irrelevant, because you can use HTML\n      attribute syntax to customize the element (i.e.\n      `<Input @type=\"checkbox\" disabled data-custom=\"custom value\" />`). However, `@type` and\n      `@checked` must be passed as named arguments, not attributes.\n         @property attributeBindings\n      @type Array | String\n      @default ['type', 'checked', 'indeterminate', 'disabled', 'tabindex', 'name', 'autofocus', 'required', 'form']\n      @public\n    */\n    attributeBindings: ['type', 'checked', 'indeterminate', 'disabled', 'tabindex', 'name', 'autofocus', 'required', 'form'],\n\n    /**\n      Sets the `type` attribute of the `Checkbox`'s element\n         @property disabled\n      @default false\n      @private\n     */\n    type: 'checkbox',\n\n    /**\n      Sets the `disabled` attribute of the `Checkbox`'s element\n         @property disabled\n      @default false\n      @public\n     */\n    disabled: false,\n\n    /**\n      Corresponds to the `indeterminate` property of the `Checkbox`'s element\n         @property disabled\n      @default false\n      @public\n     */\n    indeterminate: false,\n\n    /**\n      Whenever the checkbox is inserted into the DOM, perform initialization steps, which include\n      setting the indeterminate property if needed.\n         If this method is overridden, `super` must be called.\n         @method\n      @public\n     */\n    didInsertElement() {\n      this._super(...arguments);\n\n      this.element.indeterminate = Boolean(this.indeterminate);\n    },\n\n    /**\n      Whenever the `change` event is fired on the checkbox, update its `checked` property to reflect\n      whether the checkbox is checked.\n         If this method is overridden, `super` must be called.\n         @method\n      @public\n     */\n    change() {\n      (0, _metal.set)(this, 'checked', this.element.checked);\n    }\n\n  });\n  _exports.Checkbox = Checkbox;\n\n  if (true\n  /* DEBUG */\n  ) {\n    var UNSET = {};\n    Checkbox.reopen({\n      value: UNSET,\n\n      didReceiveAttrs() {\n        this._super();\n\n        (true && !(!(this.type === 'checkbox' && this.value !== UNSET)) && (0, _debug.assert)(\"`<Input @type='checkbox' @value={{...}} />` is not supported; \" + \"please use `<Input @type='checkbox' @checked={{...}} />` instead.\", !(this.type === 'checkbox' && this.value !== UNSET)));\n      }\n\n    });\n  }\n\n  Checkbox.toString = () => '@ember/component/checkbox';\n  /**\n  @module @ember/component\n  */\n\n\n  var inputTypes = _browserEnvironment.hasDOM ? Object.create(null) : null;\n\n  function canSetTypeOfInput(type) {\n    // if running in outside of a browser always return\n    // the original type\n    if (!_browserEnvironment.hasDOM) {\n      return Boolean(type);\n    }\n\n    if (type in inputTypes) {\n      return inputTypes[type];\n    }\n\n    var inputTypeTestElement = document.createElement('input');\n\n    try {\n      inputTypeTestElement.type = type;\n    } catch (e) {// ignored\n    }\n\n    return inputTypes[type] = inputTypeTestElement.type === type;\n  }\n  /**\n    The internal class used to create text inputs when the `Input` component is used with `type` of `text`.\n  \n    See [Ember.Templates.components.Input](/ember/release/classes/Ember.Templates.components/methods/Input?anchor=Input) for usage details.\n  \n    ## Layout and LayoutName properties\n  \n    Because HTML `input` elements are self closing `layout` and `layoutName`\n    properties will not be applied.\n  \n    @class TextField\n    @extends Component\n    @uses Ember.TextSupport\n    @public\n  */\n\n\n  var TextField = Component.extend(_views.TextSupport, {\n    layout,\n\n    /**\n      By default, this component will add the `ember-text-field` class to the component's element.\n         @property classNames\n      @type Array | String\n      @default ['ember-text-field']\n      @public\n     */\n    classNames: ['ember-text-field'],\n    tagName: 'input',\n\n    /**\n      By default this component will forward a number of arguments to attributes on the the\n      component's element:\n         * accept\n      * autocomplete\n      * autosave\n      * dir\n      * formaction\n      * formenctype\n      * formmethod\n      * formnovalidate\n      * formtarget\n      * height\n      * inputmode\n      * lang\n      * list\n      * type\n      * max\n      * min\n      * multiple\n      * name\n      * pattern\n      * size\n      * step\n      * value\n      * width\n         When invoked with `{{input type=\"text\"}}`, you can only customize these attributes. When invoked\n      with `<Input @type=\"text\" />`, you can just use HTML attributes directly.\n         @property attributeBindings\n      @type Array | String\n      @default ['accept', 'autocomplete', 'autosave', 'dir', 'formaction', 'formenctype', 'formmethod', 'formnovalidate', 'formtarget', 'height', 'inputmode', 'lang', 'list', 'type', 'max', 'min', 'multiple', 'name', 'pattern', 'size', 'step', 'value', 'width']\n      @public\n    */\n    attributeBindings: ['accept', 'autocomplete', 'autosave', 'dir', 'formaction', 'formenctype', 'formmethod', 'formnovalidate', 'formtarget', 'height', 'inputmode', 'lang', 'list', 'type', 'max', 'min', 'multiple', 'name', 'pattern', 'size', 'step', 'value', 'width'],\n\n    /**\n      As the user inputs text, this property is updated to reflect the `value` property of the HTML\n      element.\n         @property value\n      @type String\n      @default \"\"\n      @public\n    */\n    value: '',\n\n    /**\n      The `type` attribute of the input element.\n         @property type\n      @type String\n      @default \"text\"\n      @public\n    */\n    type: (0, _metal.computed)({\n      get() {\n        return 'text';\n      },\n\n      set(_key, value) {\n        var type = 'text';\n\n        if (canSetTypeOfInput(value)) {\n          type = value;\n        }\n\n        return type;\n      }\n\n    }),\n\n    /**\n      The `size` of the text field in characters.\n         @property size\n      @type String\n      @default null\n      @public\n    */\n    size: null,\n\n    /**\n      The `pattern` attribute of input element.\n         @property pattern\n      @type String\n      @default null\n      @public\n    */\n    pattern: null,\n\n    /**\n      The `min` attribute of input element used with `type=\"number\"` or `type=\"range\"`.\n         @property min\n      @type String\n      @default null\n      @since 1.4.0\n      @public\n    */\n    min: null,\n\n    /**\n      The `max` attribute of input element used with `type=\"number\"` or `type=\"range\"`.\n         @property max\n      @type String\n      @default null\n      @since 1.4.0\n      @public\n    */\n    max: null\n  });\n  _exports.TextField = TextField;\n\n  TextField.toString = () => '@ember/component/text-field';\n  /**\n  @module @ember/component\n  */\n\n  /**\n    The `Textarea` component inserts a new instance of `<textarea>` tag into the template.\n  \n    The `@value` argument provides the content of the `<textarea>`.\n  \n    This template:\n  \n    ```handlebars\n    <Textarea @value=\"A bunch of text\" />\n    ```\n  \n    Would result in the following HTML:\n  \n    ```html\n    <textarea class=\"ember-text-area\">\n      A bunch of text\n    </textarea>\n    ```\n  \n    The `@value` argument is two-way bound. If the user types text into the textarea, the `@value`\n    argument is updated. If the `@value` argument is updated, the text in the textarea is updated.\n  \n    In the following example, the `writtenWords` property on the component will be updated as the user\n    types 'Lots of text' into the text area of their browser's window.\n  \n    ```app/components/word-editor.js\n    import Component from '@glimmer/component';\n    import { tracked } from '@glimmer/tracking';\n  \n    export default class WordEditorComponent extends Component {\n      @tracked writtenWords = \"Lots of text that IS bound\";\n    }\n    ```\n  \n    ```handlebars\n    <Textarea @value={{writtenWords}} />\n    ```\n  \n    Would result in the following HTML:\n  \n    ```html\n    <textarea class=\"ember-text-area\">\n      Lots of text that IS bound\n    </textarea>\n    ```\n  \n    If you wanted a one way binding, you could use the `<textarea>` element directly, and use the\n    `value` DOM property and the `input` event.\n  \n    ### Actions\n  \n    The `Textarea` component takes a number of arguments with callbacks that are invoked in\n    response to user events.\n  \n    * `enter`\n    * `insert-newline`\n    * `escape-press`\n    * `focus-in`\n    * `focus-out`\n    * `key-press`\n  \n    These callbacks are passed to `Textarea` like this:\n  \n    ```handlebars\n    <Textarea @value={{this.searchWord}} @enter={{this.query}} />\n    ```\n  \n    ## Classic Invocation Syntax\n  \n    The `Textarea` component can also be invoked using curly braces, just like any other Ember\n    component.\n  \n    For example, this is an invocation using angle-bracket notation:\n  \n    ```handlebars\n    <Textarea @value={{this.searchWord}} @enter={{this.query}} />\n    ```\n  \n    You could accomplish the same thing using classic invocation:\n  \n    ```handlebars\n    {{textarea value=this.searchWord enter=this.query}}\n    ```\n  \n    The main difference is that angle-bracket invocation supports any HTML attribute using HTML\n    attribute syntax, because attributes and arguments have different syntax when using angle-bracket\n    invocation. Curly brace invocation, on the other hand, only has a single syntax for arguments,\n    and components must manually map attributes onto component arguments.\n  \n    When using classic invocation with `{{textarea}}`, only the following attributes are mapped onto\n    arguments:\n  \n    * rows\n    * cols\n    * name\n    * selectionEnd\n    * selectionStart\n    * autocomplete\n    * wrap\n    * lang\n    * dir\n    * value\n  \n    ## Classic `layout` and `layoutName` properties\n  \n    Because HTML `textarea` elements do not contain inner HTML the `layout` and\n    `layoutName` properties will not be applied.\n  \n    @method Textarea\n    @for Ember.Templates.components\n    @see {TextArea}\n    @public\n  */\n\n  /**\n    See Ember.Templates.components.Textarea.\n  \n    @method textarea\n    @for Ember.Templates.helpers\n    @see {Ember.Templates.components.textarea}\n    @public\n  */\n\n  /**\n    The internal representation used for `Textarea` invocations.\n  \n    @class TextArea\n    @extends Component\n    @see {Ember.Templates.components.Textarea}\n    @uses Ember.TextSupport\n    @public\n  */\n\n\n  var TextArea = Component.extend(_views.TextSupport, {\n    classNames: ['ember-text-area'],\n    layout,\n    tagName: 'textarea',\n    attributeBindings: ['rows', 'cols', 'name', 'selectionEnd', 'selectionStart', 'autocomplete', 'wrap', 'lang', 'dir', 'value'],\n    rows: null,\n    cols: null\n  });\n  _exports.TextArea = TextArea;\n\n  TextArea.toString = () => '@ember/component/text-area';\n\n  var layout$1 = template({\n    \"id\": \"uDKxl8ne\",\n    \"block\": \"{\\\"symbols\\\":[\\\"&default\\\"],\\\"statements\\\":[[6,[37,0],[[27,[32,1]]],null,[[\\\"default\\\",\\\"else\\\"],[{\\\"statements\\\":[[18,1,null]],\\\"parameters\\\":[]},{\\\"statements\\\":[[1,[32,0,[\\\"linkTitle\\\"]]]],\\\"parameters\\\":[]}]]]],\\\"hasEval\\\":false,\\\"upvars\\\":[\\\"if\\\"]}\",\n    \"meta\": {\n      \"moduleName\": \"packages/@ember/-internals/glimmer/lib/templates/link-to.hbs\"\n    }\n  });\n  /**\n  @module ember\n  */\n\n  /**\n    The `LinkTo` component renders a link to the supplied `routeName` passing an optionally\n    supplied model to the route as its `model` context of the route. The block for `LinkTo`\n    becomes the contents of the rendered element:\n  \n    ```handlebars\n    <LinkTo @route='photoGallery'>\n      Great Hamster Photos\n    </LinkTo>\n    ```\n  \n    This will result in:\n  \n    ```html\n    <a href=\"/hamster-photos\">\n      Great Hamster Photos\n    </a>\n    ```\n  \n    ### Disabling the `LinkTo` component\n  \n    The `LinkTo` component can be disabled by using the `disabled` argument. A disabled link\n    doesn't result in a transition when activated, and adds the `disabled` class to the `<a>`\n    element.\n  \n    (The class name to apply to the element can be overridden by using the `disabledClass`\n    argument)\n  \n    ```handlebars\n    <LinkTo @route='photoGallery' @disabled={{true}}>\n      Great Hamster Photos\n    </LinkTo>\n    ```\n  \n    ### Handling `href`\n  \n    `<LinkTo>` will use your application's Router to fill the element's `href` property with a URL\n    that matches the path to the supplied `routeName`.\n  \n    ### Handling current route\n  \n    The `LinkTo` component will apply a CSS class name of 'active' when the application's current\n    route matches the supplied routeName. For example, if the application's current route is\n    'photoGallery.recent', then the following invocation of `LinkTo`:\n  \n    ```handlebars\n    <LinkTo @route='photoGallery.recent'>\n      Great Hamster Photos\n    </LinkTo>\n    ```\n  \n    will result in\n  \n    ```html\n    <a href=\"/hamster-photos/this-week\" class=\"active\">\n      Great Hamster Photos\n    </a>\n    ```\n  \n    The CSS class used for active classes can be customized by passing an `activeClass` argument:\n  \n    ```handlebars\n    <LinkTo @route='photoGallery.recent' @activeClass=\"current-url\">\n      Great Hamster Photos\n    </LinkTo>\n    ```\n  \n    ```html\n    <a href=\"/hamster-photos/this-week\" class=\"current-url\">\n      Great Hamster Photos\n    </a>\n    ```\n  \n    ### Keeping a link active for other routes\n  \n    If you need a link to be 'active' even when it doesn't match the current route, you can use the\n    `current-when` argument.\n  \n    ```handlebars\n    <LinkTo @route='photoGallery' @current-when='photos'>\n      Photo Gallery\n    </LinkTo>\n    ```\n  \n    This may be helpful for keeping links active for:\n  \n    * non-nested routes that are logically related\n    * some secondary menu approaches\n    * 'top navigation' with 'sub navigation' scenarios\n  \n    A link will be active if `current-when` is `true` or the current\n    route is the route this link would transition to.\n  \n    To match multiple routes 'space-separate' the routes:\n  \n    ```handlebars\n    <LinkTo @route='gallery' @current-when='photos drawings paintings'>\n      Art Gallery\n    </LinkTo>\n    ```\n  \n    ### Supplying a model\n  \n    An optional `model` argument can be used for routes whose\n    paths contain dynamic segments. This argument will become\n    the model context of the linked route:\n  \n    ```javascript\n    Router.map(function() {\n      this.route(\"photoGallery\", {path: \"hamster-photos/:photo_id\"});\n    });\n    ```\n  \n    ```handlebars\n    <LinkTo @route='photoGallery' @model={{this.aPhoto}}>\n      {{aPhoto.title}}\n    </LinkTo>\n    ```\n  \n    ```html\n    <a href=\"/hamster-photos/42\">\n      Tomster\n    </a>\n    ```\n  \n    ### Supplying multiple models\n  \n    For deep-linking to route paths that contain multiple\n    dynamic segments, the `models` argument can be used.\n  \n    As the router transitions through the route path, each\n    supplied model argument will become the context for the\n    route with the dynamic segments:\n  \n    ```javascript\n    Router.map(function() {\n      this.route(\"photoGallery\", { path: \"hamster-photos/:photo_id\" }, function() {\n        this.route(\"comment\", {path: \"comments/:comment_id\"});\n      });\n    });\n    ```\n  \n    This argument will become the model context of the linked route:\n  \n    ```handlebars\n    <LinkTo @route='photoGallery.comment' @models={{array this.aPhoto this.comment}}>\n      {{comment.body}}\n    </LinkTo>\n    ```\n  \n    ```html\n    <a href=\"/hamster-photos/42/comments/718\">\n      A+++ would snuggle again.\n    </a>\n    ```\n  \n    ### Supplying an explicit dynamic segment value\n  \n    If you don't have a model object available to pass to `LinkTo`,\n    an optional string or integer argument can be passed for routes whose\n    paths contain dynamic segments. This argument will become the value\n    of the dynamic segment:\n  \n    ```javascript\n    Router.map(function() {\n      this.route(\"photoGallery\", { path: \"hamster-photos/:photo_id\" });\n    });\n    ```\n  \n    ```handlebars\n    <LinkTo @route='photoGallery' @model={{aPhotoId}}>\n      {{this.aPhoto.title}}\n    </LinkTo>\n    ```\n  \n    ```html\n    <a href=\"/hamster-photos/42\">\n      Tomster\n    </a>\n    ```\n  \n    When transitioning into the linked route, the `model` hook will\n    be triggered with parameters including this passed identifier.\n  \n    ### Allowing Default Action\n  \n    By default the `<LinkTo>` component prevents the default browser action by calling\n    `preventDefault()` to avoid reloading the browser page.\n  \n    If you need to trigger a full browser reload pass `@preventDefault={{false}}`:\n  \n    ```handlebars\n    <LinkTo @route='photoGallery' @model={{this.aPhotoId}} @preventDefault={{false}}>\n      {{this.aPhotoId.title}}\n    </LinkTo>\n    ```\n  \n    ### Supplying a `tagName`\n  \n    By default `<LinkTo>` renders an `<a>` element. This can be overridden for a single use of\n    `<LinkTo>` by supplying a `tagName` argument:\n  \n    ```handlebars\n    <LinkTo @route='photoGallery' @tagName='li'>\n      Great Hamster Photos\n    </LinkTo>\n    ```\n  \n    This produces:\n  \n    ```html\n    <li>\n      Great Hamster Photos\n    </li>\n    ```\n  \n    In general, this is not recommended. Instead, you can use the `transition-to` helper together\n    with a click event handler on the HTML tag of your choosing.\n  \n    @for Ember.Templates.components\n    @method LinkTo\n    @see {LinkComponent}\n    @public\n  */\n\n  /**\n    @module @ember/routing\n  */\n\n  /**\n    See [Ember.Templates.components.LinkTo](/ember/release/classes/Ember.Templates.components/methods/input?anchor=LinkTo).\n  \n    @for Ember.Templates.helpers\n    @method link-to\n    @see {Ember.Templates.components.LinkTo}\n    @public\n  **/\n\n  /**\n    `LinkComponent` is the internal component invoked with `<LinkTo>` or `{{link-to}}`.\n  \n    @class LinkComponent\n    @extends Component\n    @see {Ember.Templates.components.LinkTo}\n    @public\n  **/\n\n  var UNDEFINED = Object.freeze({\n    toString() {\n      return 'UNDEFINED';\n    }\n\n  });\n  var EMPTY_QUERY_PARAMS = Object.freeze({});\n  var LinkComponent = Component.extend({\n    layout: layout$1,\n    tagName: 'a',\n\n    /**\n      @property route\n      @public\n    */\n    route: UNDEFINED,\n\n    /**\n      @property model\n      @public\n    */\n    model: UNDEFINED,\n\n    /**\n      @property models\n      @public\n    */\n    models: UNDEFINED,\n\n    /**\n      @property query\n      @public\n    */\n    query: UNDEFINED,\n\n    /**\n      Used to determine when this `LinkComponent` is active.\n         @property current-when\n      @public\n    */\n    'current-when': null,\n\n    /**\n      Sets the `title` attribute of the `LinkComponent`'s HTML element.\n         @property title\n      @default null\n      @public\n    **/\n    title: null,\n\n    /**\n      Sets the `rel` attribute of the `LinkComponent`'s HTML element.\n         @property rel\n      @default null\n      @public\n    **/\n    rel: null,\n\n    /**\n      Sets the `tabindex` attribute of the `LinkComponent`'s HTML element.\n         @property tabindex\n      @default null\n      @public\n    **/\n    tabindex: null,\n\n    /**\n      Sets the `target` attribute of the `LinkComponent`'s HTML element.\n         @since 1.8.0\n      @property target\n      @default null\n      @public\n    **/\n    target: null,\n\n    /**\n      The CSS class to apply to `LinkComponent`'s element when its `active`\n      property is `true`.\n         @property activeClass\n      @type String\n      @default active\n      @public\n    **/\n    activeClass: 'active',\n\n    /**\n      The CSS class to apply to `LinkComponent`'s element when its `loading`\n      property is `true`.\n         @property loadingClass\n      @type String\n      @default loading\n      @private\n    **/\n    loadingClass: 'loading',\n\n    /**\n      The CSS class to apply to a `LinkComponent`'s element when its `disabled`\n      property is `true`.\n         @property disabledClass\n      @type String\n      @default disabled\n      @private\n    **/\n    disabledClass: 'disabled',\n\n    /**\n      Determines whether the `LinkComponent` will trigger routing via\n      the `replaceWith` routing strategy.\n         @property replace\n      @type Boolean\n      @default false\n      @public\n    **/\n    replace: false,\n\n    /**\n      By default this component will forward `href`, `title`, `rel`, `tabindex`, and `target`\n      arguments to attributes on the component's element. When invoked with `{{link-to}}`, you can\n      only customize these attributes. When invoked with `<LinkTo>`, you can just use HTML\n      attributes directly.\n         @property attributeBindings\n      @type Array | String\n      @default ['title', 'rel', 'tabindex', 'target']\n      @public\n    */\n    attributeBindings: ['href', 'title', 'rel', 'tabindex', 'target'],\n\n    /**\n      By default this component will set classes on its element when any of the following arguments\n      are truthy:\n         * active\n      * loading\n      * disabled\n         When these arguments are truthy, a class with the same name will be set on the element. When\n      falsy, the associated class will not be on the element.\n         @property classNameBindings\n      @type Array\n      @default ['active', 'loading', 'disabled', 'ember-transitioning-in', 'ember-transitioning-out']\n      @public\n    */\n    classNameBindings: ['active', 'loading', 'disabled', 'transitioningIn', 'transitioningOut'],\n\n    /**\n      By default this component responds to the `click` event. When the component element is an\n      `<a>` element, activating the link in another way, such as using the keyboard, triggers the\n      click event.\n         @property eventName\n      @type String\n      @default click\n      @private\n    */\n    eventName: 'click',\n\n    // this is doc'ed here so it shows up in the events\n    // section of the API documentation, which is where\n    // people will likely go looking for it.\n\n    /**\n      Triggers the `LinkComponent`'s routing behavior. If\n      `eventName` is changed to a value other than `click`\n      the routing behavior will trigger on that custom event\n      instead.\n         @event click\n      @private\n    */\n\n    /**\n      An overridable method called when `LinkComponent` objects are instantiated.\n         Example:\n         ```app/components/my-link.js\n      import LinkComponent from '@ember/routing/link-component';\n         export default LinkComponent.extend({\n        init() {\n          this._super(...arguments);\n          console.log('Event is ' + this.get('eventName'));\n        }\n      });\n      ```\n         NOTE: If you do override `init` for a framework class like `Component`,\n      be sure to call `this._super(...arguments)` in your\n      `init` declaration! If you don't, Ember may not have an opportunity to\n      do important setup work, and you'll see strange behavior in your\n      application.\n         @method init\n      @private\n    */\n    init() {\n      this._super(...arguments); // Map desired event name to invoke function\n\n\n      var {\n        eventName\n      } = this;\n      this.on(eventName, this, this._invoke);\n    },\n\n    _routing: (0, _service.inject)('-routing'),\n    _currentRoute: (0, _metal.alias)('_routing.currentRouteName'),\n    _currentRouterState: (0, _metal.alias)('_routing.currentState'),\n    _targetRouterState: (0, _metal.alias)('_routing.targetState'),\n    _route: (0, _metal.computed)('route', '_currentRouterState', function computeLinkToComponentRoute() {\n      var {\n        route\n      } = this;\n      return route === UNDEFINED ? this._currentRoute : route;\n    }),\n    _models: (0, _metal.computed)('model', 'models', function computeLinkToComponentModels() {\n      var {\n        model,\n        models\n      } = this;\n      (true && !(model === UNDEFINED || models === UNDEFINED) && (0, _debug.assert)('You cannot provide both the `@model` and `@models` arguments to the <LinkTo> component.', model === UNDEFINED || models === UNDEFINED));\n\n      if (model !== UNDEFINED) {\n        return [model];\n      } else if (models !== UNDEFINED) {\n        (true && !(Array.isArray(models)) && (0, _debug.assert)('The `@models` argument must be an array.', Array.isArray(models)));\n        return models;\n      } else {\n        return [];\n      }\n    }),\n    _query: (0, _metal.computed)('query', function computeLinkToComponentQuery() {\n      var {\n        query\n      } = this;\n\n      if (query === UNDEFINED) {\n        return EMPTY_QUERY_PARAMS;\n      } else {\n        return (0, _polyfills.assign)({}, query);\n      }\n    }),\n\n    /**\n      Accessed as a classname binding to apply the component's `disabledClass`\n      CSS `class` to the element when the link is disabled.\n         When `true`, interactions with the element will not trigger route changes.\n      @property disabled\n      @private\n    */\n    disabled: (0, _metal.computed)({\n      get(_key) {\n        // always returns false for `get` because (due to the `set` just below)\n        // the cached return value from the set will prevent this getter from _ever_\n        // being called after a set has occurred\n        return false;\n      },\n\n      set(_key, value) {\n        this._isDisabled = value;\n        return value ? this.disabledClass : false;\n      }\n\n    }),\n\n    /**\n      Accessed as a classname binding to apply the component's `activeClass`\n      CSS `class` to the element when the link is active.\n         This component is considered active when its `currentWhen` property is `true`\n      or the application's current route is the route this component would trigger\n      transitions into.\n         The `currentWhen` property can match against multiple routes by separating\n      route names using the ` ` (space) character.\n         @property active\n      @private\n    */\n    active: (0, _metal.computed)('activeClass', '_active', function computeLinkToComponentActiveClass() {\n      return this._active ? this.activeClass : false;\n    }),\n    _active: (0, _metal.computed)('_currentRouterState', '_route', '_models', '_query', 'loading', 'current-when', function computeLinkToComponentActive() {\n      var {\n        _currentRouterState: state\n      } = this;\n\n      if (state) {\n        return this._isActive(state);\n      } else {\n        return false;\n      }\n    }),\n    willBeActive: (0, _metal.computed)('_currentRouterState', '_targetRouterState', '_route', '_models', '_query', 'loading', 'current-when', function computeLinkToComponentWillBeActive() {\n      var {\n        _currentRouterState: current,\n        _targetRouterState: target\n      } = this;\n\n      if (current === target) {\n        return;\n      }\n\n      return this._isActive(target);\n    }),\n\n    _isActive(routerState) {\n      if (this.loading) {\n        return false;\n      }\n\n      var currentWhen = this['current-when'];\n\n      if (typeof currentWhen === 'boolean') {\n        return currentWhen;\n      }\n\n      var isCurrentWhenSpecified = Boolean(currentWhen);\n\n      if (isCurrentWhenSpecified) {\n        currentWhen = currentWhen.split(' ');\n      } else {\n        currentWhen = [this._route];\n      }\n\n      var {\n        _models: models,\n        _query: query,\n        _routing: routing\n      } = this;\n\n      for (var i = 0; i < currentWhen.length; i++) {\n        if (routing.isActiveForRoute(models, query, currentWhen[i], routerState, isCurrentWhenSpecified)) {\n          return true;\n        }\n      }\n\n      return false;\n    },\n\n    transitioningIn: (0, _metal.computed)('_active', 'willBeActive', function computeLinkToComponentTransitioningIn() {\n      if (this.willBeActive === true && !this._active) {\n        return 'ember-transitioning-in';\n      } else {\n        return false;\n      }\n    }),\n    transitioningOut: (0, _metal.computed)('_active', 'willBeActive', function computeLinkToComponentTransitioningOut() {\n      if (this.willBeActive === false && this._active) {\n        return 'ember-transitioning-out';\n      } else {\n        return false;\n      }\n    }),\n\n    /**\n      Event handler that invokes the link, activating the associated route.\n         @method _invoke\n      @param {Event} event\n      @private\n    */\n    _invoke(event) {\n      if (!(0, _views.isSimpleClick)(event)) {\n        return true;\n      }\n\n      var {\n        bubbles,\n        preventDefault\n      } = this;\n      var target = this.element.target;\n      var isSelf = !target || target === '_self';\n\n      if (preventDefault !== false && isSelf) {\n        event.preventDefault();\n      }\n\n      if (bubbles === false) {\n        event.stopPropagation();\n      }\n\n      if (this._isDisabled) {\n        return false;\n      }\n\n      if (this.loading) {\n        // tslint:disable-next-line:max-line-length\n        (true && (0, _debug.warn)('This link is in an inactive loading state because at least one of its models ' + 'currently has a null/undefined value, or the provided route name is invalid.', false, {\n          id: 'ember-glimmer.link-to.inactive-loading-state'\n        }));\n        return false;\n      }\n\n      if (!isSelf) {\n        return false;\n      }\n\n      var {\n        _route: routeName,\n        _models: models,\n        _query: queryParams,\n        replace: shouldReplace\n      } = this;\n      var payload = {\n        queryParams,\n        routeName\n      };\n      (0, _instrumentation.flaggedInstrument)('interaction.link-to', payload, this._generateTransition(payload, routeName, models, queryParams, shouldReplace));\n      return false;\n    },\n\n    _generateTransition(payload, qualifiedRouteName, models, queryParams, shouldReplace) {\n      var {\n        _routing: routing\n      } = this;\n      return () => {\n        payload.transition = routing.transitionTo(qualifiedRouteName, models, queryParams, shouldReplace);\n      };\n    },\n\n    /**\n      Sets the element's `href` attribute to the url for\n      the `LinkComponent`'s targeted route.\n         If the `LinkComponent`'s `tagName` is changed to a value other\n      than `a`, this property will be ignored.\n         @property href\n      @private\n    */\n    href: (0, _metal.computed)('_currentRouterState', '_route', '_models', '_query', 'tagName', 'loading', 'loadingHref', function computeLinkToComponentHref() {\n      if (this.tagName !== 'a') {\n        return;\n      }\n\n      if (this.loading) {\n        return this.loadingHref;\n      }\n\n      var {\n        _route: route,\n        _models: models,\n        _query: query,\n        _routing: routing\n      } = this;\n\n      if (true\n      /* DEBUG */\n      ) {\n        /*\n         * Unfortunately, to get decent error messages, we need to do this.\n         * In some future state we should be able to use a \"feature flag\"\n         * which allows us to strip this without needing to call it twice.\n         *\n         * if (isDebugBuild()) {\n         *   // Do the useful debug thing, probably including try/catch.\n         * } else {\n         *   // Do the performant thing.\n         * }\n         */\n        try {\n          return routing.generateURL(route, models, query);\n        } catch (e) {\n          // tslint:disable-next-line:max-line-length\n          (true && !(false) && (0, _debug.assert)(`You attempted to generate a link for the \"${this.route}\" route, but did not ` + `pass the models required for generating its dynamic segments. ` + e.message));\n        }\n      } else {\n        return routing.generateURL(route, models, query);\n      }\n    }),\n    loading: (0, _metal.computed)('_route', '_modelsAreLoaded', 'loadingClass', function computeLinkToComponentLoading() {\n      var {\n        _route: route,\n        _modelsAreLoaded: loaded\n      } = this;\n\n      if (!loaded || route === null || route === undefined) {\n        return this.loadingClass;\n      }\n    }),\n    _modelsAreLoaded: (0, _metal.computed)('_models', function computeLinkToComponentModelsAreLoaded() {\n      var {\n        _models: models\n      } = this;\n\n      for (var i = 0; i < models.length; i++) {\n        var model = models[i];\n\n        if (model === null || model === undefined) {\n          return false;\n        }\n      }\n\n      return true;\n    }),\n\n    /**\n      The default href value to use while a link-to is loading.\n      Only applies when tagName is 'a'\n         @property loadingHref\n      @type String\n      @default #\n      @private\n    */\n    loadingHref: '#',\n\n    didReceiveAttrs() {\n      var {\n        disabledWhen\n      } = this;\n\n      if (disabledWhen !== undefined) {\n        this.set('disabled', disabledWhen);\n      }\n\n      var {\n        params\n      } = this;\n\n      if (!params || params.length === 0) {\n        (true && !(!(this.route === UNDEFINED && this.model === UNDEFINED && this.models === UNDEFINED && this.query === UNDEFINED)) && (0, _debug.assert)('You must provide at least one of the `@route`, `@model`, `@models` or `@query` argument to `<LinkTo>`.', !(this.route === UNDEFINED && this.model === UNDEFINED && this.models === UNDEFINED && this.query === UNDEFINED)));\n        var {\n          _models: models\n        } = this;\n\n        if (models.length > 0) {\n          var lastModel = models[models.length - 1];\n\n          if (typeof lastModel === 'object' && lastModel !== null && lastModel.isQueryParams) {\n            this.query = lastModel.values;\n            models.pop();\n          }\n        }\n\n        return;\n      }\n\n      params = params.slice(); // Process the positional arguments, in order.\n      // 1. Inline link title comes first, if present.\n\n      if (!this[HAS_BLOCK]) {\n        this.set('linkTitle', params.shift());\n      } // 2. The last argument is possibly the `query` object.\n\n\n      var queryParams = params[params.length - 1];\n\n      if (queryParams && queryParams.isQueryParams) {\n        this.set('query', params.pop().values);\n      } else {\n        this.set('query', UNDEFINED);\n      } // 3. If there is a `route`, it is now at index 0.\n\n\n      if (params.length === 0) {\n        this.set('route', UNDEFINED);\n      } else {\n        this.set('route', params.shift());\n      } // 4. Any remaining indices (if any) are `models`.\n\n\n      this.set('model', UNDEFINED);\n      this.set('models', params);\n    }\n\n  });\n  _exports.LinkComponent = LinkComponent;\n\n  LinkComponent.toString = () => '@ember/routing/link-component';\n\n  LinkComponent.reopenClass({\n    positionalParams: 'params'\n  });\n  /**\n  @module @ember/component\n  */\n\n  var RECOMPUTE_TAG = (0, _utils.symbol)('RECOMPUTE_TAG');\n\n  function isHelperFactory(helper) {\n    return typeof helper === 'object' && helper !== null && helper.class && helper.class.isHelperFactory;\n  }\n\n  function isClassHelper(helper) {\n    return helper.destroy !== undefined;\n  }\n  /**\n    Ember Helpers are functions that can compute values, and are used in templates.\n    For example, this code calls a helper named `format-currency`:\n  \n    ```app/templates/application.hbs\n    <Cost @cents={{230}} />\n    ```\n  \n    ```app/components/cost.hbs\n    <div>{{format-currency @cents currency=\"$\"}}</div>\n    ```\n  \n    Additionally a helper can be called as a nested helper.\n    In this example, we show the formatted currency value if the `showMoney`\n    named argument is truthy.\n  \n    ```handlebars\n    {{if @showMoney (format-currency @cents currency=\"$\")}}\n    ```\n  \n    Helpers defined using a class must provide a `compute` function. For example:\n  \n    ```app/helpers/format-currency.js\n    import Helper from '@ember/component/helper';\n  \n    export default class extends Helper {\n      compute([cents], { currency }) {\n        return `${currency}${cents * 0.01}`;\n      }\n    }\n    ```\n  \n    Each time the input to a helper changes, the `compute` function will be\n    called again.\n  \n    As instances, these helpers also have access to the container and will accept\n    injected dependencies.\n  \n    Additionally, class helpers can call `recompute` to force a new computation.\n  \n    @class Helper\n    @public\n    @since 1.13.0\n  */\n\n\n  var Helper = _runtime.FrameworkObject.extend({\n    init() {\n      this._super(...arguments);\n\n      this[RECOMPUTE_TAG] = (0, _validator.createTag)();\n    },\n\n    /**\n      On a class-based helper, it may be useful to force a recomputation of that\n      helpers value. This is akin to `rerender` on a component.\n         For example, this component will rerender when the `currentUser` on a\n      session service changes:\n         ```app/helpers/current-user-email.js\n      import Helper from '@ember/component/helper'\n      import { inject as service } from '@ember/service'\n      import { observer } from '@ember/object'\n         export default Helper.extend({\n        session: service(),\n           onNewUser: observer('session.currentUser', function() {\n          this.recompute();\n        }),\n           compute() {\n          return this.get('session.currentUser.email');\n        }\n      });\n      ```\n         @method recompute\n      @public\n      @since 1.13.0\n    */\n    recompute() {\n      (0, _runloop.join)(() => (0, _validator.dirtyTag)(this[RECOMPUTE_TAG]));\n    }\n\n  });\n\n  _exports.Helper = Helper;\n  Helper.isHelperFactory = true;\n  (0, _runtime.setFrameworkClass)(Helper);\n\n  class Wrapper {\n    constructor(compute) {\n      this.compute = compute;\n      this.isHelperFactory = true;\n    }\n\n    create() {\n      // needs new instance or will leak containers\n      return {\n        compute: this.compute\n      };\n    }\n\n  }\n  /**\n    In many cases it is not necessary to use the full `Helper` class.\n    The `helper` method create pure-function helpers without instances.\n    For example:\n  \n    ```app/helpers/format-currency.js\n    import { helper } from '@ember/component/helper';\n  \n    export default helper(function([cents], {currency}) {\n      return `${currency}${cents * 0.01}`;\n    });\n    ```\n  \n    @static\n    @param {Function} helper The helper function\n    @method helper\n    @for @ember/component/helper\n    @public\n    @since 1.13.0\n  */\n\n\n  function helper(helperFn) {\n    return new Wrapper(helperFn);\n  }\n  /**\n  @module @ember/template\n  */\n\n\n  class SafeString {\n    constructor(string) {\n      this.string = string;\n    }\n\n    toString() {\n      return `${this.string}`;\n    }\n\n    toHTML() {\n      return this.toString();\n    }\n\n  }\n\n  _exports.SafeString = SafeString;\n  var escape = {\n    '&': '&amp;',\n    '<': '&lt;',\n    '>': '&gt;',\n    '\"': '&quot;',\n    \"'\": '&#x27;',\n    '`': '&#x60;',\n    '=': '&#x3D;'\n  };\n  var possible = /[&<>\"'`=]/;\n  var badChars = /[&<>\"'`=]/g;\n\n  function escapeChar(chr) {\n    return escape[chr];\n  }\n\n  function escapeExpression(string) {\n    if (typeof string !== 'string') {\n      // don't escape SafeStrings, since they're already safe\n      if (string && string.toHTML) {\n        return string.toHTML();\n      } else if (string === null || string === undefined) {\n        return '';\n      } else if (!string) {\n        return String(string);\n      } // Force a string conversion as this will be done by the append regardless and\n      // the regex test will do this transparently behind the scenes, causing issues if\n      // an object's to string has escaped characters in it.\n\n\n      string = String(string);\n    }\n\n    if (!possible.test(string)) {\n      return string;\n    }\n\n    return string.replace(badChars, escapeChar);\n  }\n  /**\n    Mark a string as safe for unescaped output with Ember templates. If you\n    return HTML from a helper, use this function to\n    ensure Ember's rendering layer does not escape the HTML.\n  \n    ```javascript\n    import { htmlSafe } from '@ember/template';\n  \n    htmlSafe('<div>someString</div>')\n    ```\n  \n    @method htmlSafe\n    @for @ember/template\n    @static\n    @return {SafeString} A string that will not be HTML escaped by Handlebars.\n    @public\n  */\n\n\n  function htmlSafe(str) {\n    if (str === null || str === undefined) {\n      str = '';\n    } else if (typeof str !== 'string') {\n      str = String(str);\n    }\n\n    return new SafeString(str);\n  }\n  /**\n    Detects if a string was decorated using `htmlSafe`.\n  \n    ```javascript\n    import { htmlSafe, isHTMLSafe } from '@ember/template';\n  \n    var plainString = 'plain string',\n        safeString = htmlSafe('<div>someValue</div>');\n  \n    isHTMLSafe(plainString); // false\n    isHTMLSafe(safeString);  // true\n    ```\n  \n    @method isHTMLSafe\n    @for @ember/template\n    @static\n    @return {Boolean} `true` if the string was decorated with `htmlSafe`, `false` otherwise.\n    @public\n  */\n\n\n  function isHTMLSafe(str) {\n    return str !== null && typeof str === 'object' && typeof str.toHTML === 'function';\n  }\n\n  function isStaticComponentManager(_manager, capabilities) {\n    return !capabilities.dynamicLayout;\n  }\n\n  class CompileTimeResolver {\n    constructor(resolver) {\n      this.resolver = resolver;\n    }\n\n    lookupHelper(name, referrer) {\n      return this.resolver.lookupHelper(name, referrer);\n    }\n\n    lookupModifier(name, referrer) {\n      return this.resolver.lookupModifier(name, referrer);\n    }\n\n    lookupComponent(name, referrer) {\n      var definitionHandle = this.resolver.lookupComponentHandle(name, referrer);\n\n      if (definitionHandle === null) {\n        return null;\n      }\n\n      var {\n        manager,\n        state\n      } = this.resolver.resolve(definitionHandle);\n      var capabilities = manager.getCapabilities(state);\n\n      if (!isStaticComponentManager(manager, capabilities)) {\n        return {\n          handle: definitionHandle,\n          capabilities,\n          compilable: null\n        };\n      }\n\n      return {\n        handle: definitionHandle,\n        capabilities,\n        compilable: manager.getJitStaticLayout(state, this.resolver)\n      };\n    }\n\n    lookupPartial(name, referrer) {\n      return this.resolver.lookupPartial(name, referrer);\n    }\n\n    resolve(handle) {\n      return this.resolver.resolve(handle);\n    }\n\n  } // implements the ComponentManager interface as defined in glimmer:\n  // tslint:disable-next-line:max-line-length\n  // https://github.com/glimmerjs/glimmer-vm/blob/v0.24.0-beta.4/packages/%40glimmer/runtime/lib/component/interfaces.ts#L21\n\n\n  class AbstractManager {\n    prepareArgs(_state, _args) {\n      return null;\n    }\n\n    didCreateElement(_component, _element, _operations) {// noop\n    }\n\n    didRenderLayout(_component, _bounds) {// noop\n    }\n\n    didCreate(_bucket) {// noop\n    }\n\n    update(_bucket, _dynamicScope) {// noop\n    }\n\n    didUpdateLayout(_bucket, _bounds) {// noop\n    }\n\n    didUpdate(_bucket) {// noop\n    }\n\n  }\n\n  _exports.AbstractComponentManager = AbstractManager;\n\n  function instrumentationPayload(def) {\n    return {\n      object: `${def.name}:${def.outlet}`\n    };\n  }\n\n  var CAPABILITIES = {\n    dynamicLayout: false,\n    dynamicTag: false,\n    prepareArgs: false,\n    createArgs: _environment2.ENV._DEBUG_RENDER_TREE,\n    attributeHook: false,\n    elementHook: false,\n    createCaller: false,\n    dynamicScope: true,\n    updateHook: _environment2.ENV._DEBUG_RENDER_TREE,\n    createInstance: true,\n    wrapped: false,\n    willDestroy: false\n  };\n\n  class OutletComponentManager extends AbstractManager {\n    create(environment, definition, args, dynamicScope) {\n      var parentStateRef = dynamicScope.outletState;\n      var currentStateRef = definition.ref;\n      dynamicScope.outletState = currentStateRef;\n      var state = {\n        self: new _reference.ComponentRootReference(definition.controller, environment),\n        environment,\n        finalize: (0, _instrumentation._instrumentStart)('render.outlet', instrumentationPayload, definition)\n      };\n\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        state.outlet = {\n          name: definition.outlet\n        };\n        environment.extra.debugRenderTree.create(state.outlet, {\n          type: 'outlet',\n          name: state.outlet.name,\n          args: _runtime2.EMPTY_ARGS,\n          instance: undefined,\n          template: undefined\n        });\n        var parentState = parentStateRef.value();\n        var parentOwner = parentState && parentState.render && parentState.render.owner;\n        var currentOwner = currentStateRef.value().render.owner;\n\n        if (parentOwner && parentOwner !== currentOwner) {\n          var engine = currentOwner;\n          (true && !(typeof currentOwner.mountPoint === 'string') && (0, _debug.assert)('invalid engine: missing mountPoint', typeof currentOwner.mountPoint === 'string'));\n          (true && !(currentOwner.routable === true) && (0, _debug.assert)('invalid engine: missing routable', currentOwner.routable === true));\n          var mountPoint = engine.mountPoint;\n          state.engine = {\n            mountPoint\n          };\n          environment.extra.debugRenderTree.create(state.engine, {\n            type: 'engine',\n            name: mountPoint,\n            args: _runtime2.EMPTY_ARGS,\n            instance: engine,\n            template: undefined\n          });\n        }\n\n        environment.extra.debugRenderTree.create(state, {\n          type: 'route-template',\n          name: definition.name,\n          args: args.capture(),\n          instance: definition.controller,\n          template: definition.template\n        });\n      }\n\n      return state;\n    }\n\n    getJitStaticLayout({\n      template\n    }, _resolver) {\n      // The router has already resolved the template\n      return (0, _util.unwrapTemplate)(template).asLayout();\n    }\n\n    getCapabilities() {\n      return CAPABILITIES;\n    }\n\n    getSelf({\n      self\n    }) {\n      return self;\n    }\n\n    getTag() {\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        // returning a const tag skips the update hook (VM BUG?)\n        return (0, _validator.createTag)();\n      } else {\n        // an outlet has no hooks\n        return _validator.CONSTANT_TAG;\n      }\n    }\n\n    didRenderLayout(state, bounds) {\n      state.finalize();\n\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        state.environment.extra.debugRenderTree.didRender(state, bounds);\n\n        if (state.engine) {\n          state.environment.extra.debugRenderTree.didRender(state.engine, bounds);\n        }\n\n        state.environment.extra.debugRenderTree.didRender(state.outlet, bounds);\n      }\n    }\n\n    update(state) {\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        state.environment.extra.debugRenderTree.update(state.outlet);\n\n        if (state.engine) {\n          state.environment.extra.debugRenderTree.update(state.engine);\n        }\n\n        state.environment.extra.debugRenderTree.update(state);\n      }\n    }\n\n    didUpdateLayout(state, bounds) {\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        state.environment.extra.debugRenderTree.didRender(state, bounds);\n\n        if (state.engine) {\n          state.environment.extra.debugRenderTree.didRender(state.engine, bounds);\n        }\n\n        state.environment.extra.debugRenderTree.didRender(state.outlet, bounds);\n      }\n    }\n\n    getDestructor(state) {\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        return {\n          destroy() {\n            state.environment.extra.debugRenderTree.willDestroy(state);\n\n            if (state.engine) {\n              state.environment.extra.debugRenderTree.willDestroy(state.engine);\n            }\n\n            state.environment.extra.debugRenderTree.willDestroy(state.outlet);\n          }\n\n        };\n      } else {\n        return null;\n      }\n    }\n\n  }\n\n  var OUTLET_MANAGER = new OutletComponentManager();\n\n  class OutletComponentDefinition {\n    constructor(state, manager = OUTLET_MANAGER) {\n      this.state = state;\n      this.manager = manager;\n    }\n\n  }\n\n  function createRootOutlet(outletView) {\n    if (_environment2.ENV._APPLICATION_TEMPLATE_WRAPPER) {\n      var WRAPPED_CAPABILITIES = (0, _polyfills.assign)({}, CAPABILITIES, {\n        dynamicTag: true,\n        elementHook: true,\n        wrapped: true\n      });\n      var WrappedOutletComponentManager = class extends OutletComponentManager {\n        getTagName(_component) {\n          return 'div';\n        }\n\n        getJitStaticLayout({\n          template\n        }) {\n          // The router has already resolved the template\n          return (0, _util.unwrapTemplate)(template).asWrappedLayout();\n        }\n\n        getCapabilities() {\n          return WRAPPED_CAPABILITIES;\n        }\n\n        didCreateElement(component, element, _operations) {\n          // to add GUID id and class\n          element.setAttribute('class', 'ember-view');\n          element.setAttribute('id', (0, _utils.guidFor)(component));\n        }\n\n      };\n      var WRAPPED_OUTLET_MANAGER = new WrappedOutletComponentManager();\n      return new OutletComponentDefinition(outletView.state, WRAPPED_OUTLET_MANAGER);\n    } else {\n      return new OutletComponentDefinition(outletView.state);\n    }\n  }\n\n  function NOOP() {}\n  /**\n    @module ember\n  */\n\n  /**\n    Represents the internal state of the component.\n  \n    @class ComponentStateBucket\n    @private\n  */\n\n\n  class ComponentStateBucket {\n    constructor(environment, component, args, finalizer, hasWrappedElement) {\n      this.environment = environment;\n      this.component = component;\n      this.args = args;\n      this.finalizer = finalizer;\n      this.hasWrappedElement = hasWrappedElement;\n      this.classRef = null;\n      this.classRef = null;\n      this.argsRevision = args === null ? 0 : (0, _validator.valueForTag)(args.tag);\n      this.rootRef = new _reference.ComponentRootReference(component, environment);\n    }\n\n    willDestroy() {\n      var {\n        component,\n        environment\n      } = this;\n\n      if (environment.isInteractive) {\n        component.trigger('willDestroyElement');\n        component.trigger('willClearRender');\n        var element = (0, _views.getViewElement)(component);\n\n        if (element) {\n          (0, _views.clearElementView)(element);\n          (0, _views.clearViewElement)(component);\n        }\n      }\n\n      component.renderer.unregister(component);\n    }\n\n    destroy() {\n      this.component.destroy();\n    }\n\n    finalize() {\n      var {\n        finalizer\n      } = this;\n      finalizer();\n      this.finalizer = NOOP;\n    }\n\n  }\n\n  class EmberHelperRootReference extends _reference.HelperRootReference {\n    constructor(helper$$1, args, env) {\n      var fnWrapper = args => {\n        var {\n          positional,\n          named\n        } = args;\n        var positionalValue = positional.value();\n        var namedValue = named.value();\n        var ret;\n\n        if (true\n        /* DEBUG */\n        ) {\n          (0, _debug.debugFreeze)(positionalValue);\n          (0, _debug.debugFreeze)(namedValue);\n          (0, _validator.deprecateMutationsInAutotrackingTransaction)(() => {\n            ret = helper$$1.compute(positionalValue, namedValue);\n          });\n        } else {\n          ret = helper$$1.compute(positionalValue, namedValue);\n        }\n\n        if (helper$$1[RECOMPUTE_TAG]) {\n          (0, _validator.consumeTag)(helper$$1[RECOMPUTE_TAG]);\n        }\n\n        return ret;\n      };\n\n      if (true\n      /* DEBUG */\n      ) {\n        var debugName = isClassHelper(helper$$1) ? (0, _utils.getDebugName)(helper$$1) : (0, _utils.getDebugName)(helper$$1.compute);\n        super(fnWrapper, args, env, debugName);\n      } else {\n        super(fnWrapper, args, env);\n      }\n    }\n\n  }\n\n  class UnboundRootReference extends _reference.RootReference {\n    constructor(inner, env, parent, key) {\n      super(env);\n      this.inner = inner;\n      this.env = env;\n\n      if (true\n      /* DEBUG */\n      ) {\n        env.setTemplatePathDebugContext(this, key || 'this', parent || null);\n      }\n    }\n\n    value() {\n      return this.inner;\n    }\n\n    get(key) {\n      var value = this.value();\n\n      if ((0, _utils.isObject)(value)) {\n        // root of interop with ember objects\n        return new UnboundPropertyReference(value[key], this.env, this, key);\n      } else {\n        return _runtime2.PrimitiveReference.create(value);\n      }\n    }\n\n  }\n\n  class UnboundPropertyReference extends UnboundRootReference {}\n\n  function referenceFromParts(root, parts) {\n    var reference = root;\n\n    for (var i = 0; i < parts.length; i++) {\n      reference = reference.get(parts[i]);\n    }\n\n    return reference;\n  }\n\n  function referenceForKey(rootRef, key) {\n    return rootRef.get(key);\n  }\n\n  function referenceForParts(rootRef, parts) {\n    var isAttrs = parts[0] === 'attrs'; // TODO deprecate this\n\n    if (isAttrs) {\n      parts.shift();\n\n      if (parts.length === 1) {\n        return referenceForKey(rootRef, parts[0]);\n      }\n    }\n\n    return referenceFromParts(rootRef, parts);\n  }\n\n  var AttributeBinding = {\n    parse(microsyntax) {\n      var colonIndex = microsyntax.indexOf(':');\n\n      if (colonIndex === -1) {\n        (true && !(microsyntax !== 'class') && (0, _debug.assert)('You cannot use class as an attributeBinding, use classNameBindings instead.', microsyntax !== 'class'));\n        return [microsyntax, microsyntax, true];\n      } else {\n        var prop = microsyntax.substring(0, colonIndex);\n        var attribute = microsyntax.substring(colonIndex + 1);\n        (true && !(attribute !== 'class') && (0, _debug.assert)('You cannot use class as an attributeBinding, use classNameBindings instead.', attribute !== 'class'));\n        return [prop, attribute, false];\n      }\n    },\n\n    install(component, rootRef, parsed, operations, env) {\n      var [prop, attribute, isSimple] = parsed;\n\n      if (attribute === 'id') {\n        var elementId = (0, _metal.get)(component, prop);\n\n        if (elementId === undefined || elementId === null) {\n          elementId = component.elementId;\n        }\n\n        elementId = _runtime2.PrimitiveReference.create(elementId);\n        operations.setAttribute('id', elementId, true, null); // operations.addStaticAttribute(element, 'id', elementId);\n\n        return;\n      }\n\n      var isPath = prop.indexOf('.') > -1;\n      var reference = isPath ? referenceForParts(rootRef, prop.split('.')) : referenceForKey(rootRef, prop);\n      (true && !(!(isSimple && isPath)) && (0, _debug.assert)(`Illegal attributeBinding: '${prop}' is not a valid attribute name.`, !(isSimple && isPath)));\n\n      if (_deprecatedFeatures.EMBER_COMPONENT_IS_VISIBLE && attribute === 'style' && StyleBindingReference !== undefined) {\n        reference = new StyleBindingReference(rootRef, reference, referenceForKey(rootRef, 'isVisible'), env);\n      }\n\n      operations.setAttribute(attribute, reference, false, null); // operations.addDynamicAttribute(element, attribute, reference, false);\n    }\n\n  };\n  var DISPLAY_NONE = 'display: none;';\n  var SAFE_DISPLAY_NONE = htmlSafe(DISPLAY_NONE);\n  var StyleBindingReference;\n  var installIsVisibleBinding;\n\n  if (_deprecatedFeatures.EMBER_COMPONENT_IS_VISIBLE) {\n    StyleBindingReference = class {\n      constructor(parent, inner, isVisible, env) {\n        this.inner = inner;\n        this.isVisible = isVisible;\n        this.env = env;\n        this.tag = (0, _validator.combine)([inner.tag, isVisible.tag]);\n\n        if (true\n        /* DEBUG */\n        ) {\n          env.setTemplatePathDebugContext(this, 'style', parent);\n        }\n      }\n\n      value() {\n        var value = this.inner.value();\n        var isVisible = this.isVisible.value();\n\n        if (isVisible !== undefined) {\n          (true && !(false) && (0, _debug.deprecate)(`The \\`isVisible\\` property on classic component classes is deprecated. Was accessed ${this.env.getTemplatePathDebugContext(this).replace(/^W/, 'w')}`, false, {\n            id: 'ember-component.is-visible',\n            until: '4.0.0',\n            url: 'https://deprecations.emberjs.com/v3.x#toc_ember-component-is-visible'\n          }));\n        }\n\n        if (isVisible !== false) {\n          return value;\n        } else if (!value) {\n          return SAFE_DISPLAY_NONE;\n        } else {\n          var style = value + ' ' + DISPLAY_NONE;\n          return isHTMLSafe(value) ? htmlSafe(style) : style;\n        }\n      }\n\n      get() {\n        return _runtime2.UNDEFINED_REFERENCE;\n      }\n\n    };\n\n    installIsVisibleBinding = (rootRef, operations, environment) => {\n      operations.setAttribute('style', new StyleBindingReference(rootRef, _runtime2.UNDEFINED_REFERENCE, rootRef.get('isVisible'), environment), false, null);\n    };\n  }\n\n  var ClassNameBinding = {\n    install(_element, rootRef, microsyntax, operations) {\n      var [prop, truthy, falsy] = microsyntax.split(':');\n      var isStatic = prop === '';\n\n      if (isStatic) {\n        operations.setAttribute('class', _runtime2.PrimitiveReference.create(truthy), true, null);\n      } else {\n        var isPath = prop.indexOf('.') > -1;\n        var parts = isPath ? prop.split('.') : [];\n        var value = isPath ? referenceForParts(rootRef, parts) : referenceForKey(rootRef, prop);\n        var ref;\n\n        if (truthy === undefined) {\n          ref = new SimpleClassNameBindingReference(value, isPath ? parts[parts.length - 1] : prop);\n        } else {\n          ref = new ColonClassNameBindingReference(value, truthy, falsy);\n        }\n\n        operations.setAttribute('class', ref, false, null);\n      }\n    }\n\n  };\n\n  class SimpleClassNameBindingReference {\n    constructor(inner, path) {\n      this.inner = inner;\n      this.path = path;\n      this.tag = inner.tag;\n      this.dasherizedPath = null;\n    }\n\n    value() {\n      var value = this.inner.value();\n\n      if (value === true) {\n        var {\n          path,\n          dasherizedPath\n        } = this;\n        return dasherizedPath || (this.dasherizedPath = (0, _string.dasherize)(path));\n      } else if (value || value === 0) {\n        return String(value);\n      } else {\n        return null;\n      }\n    }\n\n  }\n\n  class ColonClassNameBindingReference {\n    constructor(inner, truthy = null, falsy = null) {\n      this.inner = inner;\n      this.truthy = truthy;\n      this.falsy = falsy;\n      this.tag = inner.tag;\n    }\n\n    value() {\n      var {\n        inner,\n        truthy,\n        falsy\n      } = this;\n      return inner.value() ? truthy : falsy;\n    }\n\n  }\n  /**\n  @module ember\n  */\n\n  /**\n    The `mut` helper lets you __clearly specify__ that a child `Component` can update the\n    (mutable) value passed to it, which will __change the value of the parent component__.\n  \n    To specify that a parameter is mutable, when invoking the child `Component`:\n  \n    ```handlebars\n    <MyChild @childClickCount={{fn (mut totalClicks)}} />\n    ```\n  \n     or\n  \n    ```handlebars\n    {{my-child childClickCount=(mut totalClicks)}}\n    ```\n  \n    The child `Component` can then modify the parent's value just by modifying its own\n    property:\n  \n    ```javascript\n    // my-child.js\n    export default Component.extend({\n      click() {\n        this.incrementProperty('childClickCount');\n      }\n    });\n    ```\n  \n    Note that for curly components (`{{my-component}}`) the bindings are already mutable,\n    making the `mut` unnecessary.\n  \n    Additionally, the `mut` helper can be combined with the `fn` helper to\n    mutate a value. For example:\n  \n    ```handlebars\n    <MyChild @childClickCount={{this.totalClicks}} @click-count-change={{fn (mut totalClicks))}} />\n    ```\n  \n    or\n  \n    ```handlebars\n    {{my-child childClickCount=totalClicks click-count-change=(fn (mut totalClicks))}}\n    ```\n  \n    The child `Component` would invoke the function with the new click value:\n  \n    ```javascript\n    // my-child.js\n    export default Component.extend({\n      click() {\n        this.get('click-count-change')(this.get('childClickCount') + 1);\n      }\n    });\n    ```\n  \n    The `mut` helper changes the `totalClicks` value to what was provided as the `fn` argument.\n  \n    The `mut` helper, when used with `fn`, will return a function that\n    sets the value passed to `mut` to its first argument. As an example, we can create a\n    button that increments a value passing the value directly to the `fn`:\n  \n    ```handlebars\n    {{! inc helper is not provided by Ember }}\n    <button onclick={{fn (mut count) (inc count)}}>\n      Increment count\n    </button>\n    ```\n  \n    @method mut\n    @param {Object} [attr] the \"two-way\" attribute that can be modified.\n    @for Ember.Templates.helpers\n    @public\n  */\n\n\n  var INVOKE = (0, _utils.symbol)('INVOKE');\n  _exports.INVOKE = INVOKE;\n  var SOURCE = (0, _utils.symbol)('SOURCE');\n\n  class MutReference extends _reference.RootReference {\n    constructor(inner, env) {\n      super(env);\n      this.inner = inner;\n      this.tag = inner.tag;\n      this[SOURCE] = inner;\n    }\n\n    value() {\n      return this.inner.value();\n    }\n\n    get(key) {\n      return this.inner.get(key);\n    }\n\n    [_reference.UPDATE_REFERENCED_VALUE](value) {\n      return this.inner[_reference.UPDATE_REFERENCED_VALUE](value);\n    }\n\n    [INVOKE](value) {\n      return this.inner[_reference.UPDATE_REFERENCED_VALUE](value);\n    }\n\n  }\n\n  function unMut(ref) {\n    return ref[SOURCE] || ref;\n  }\n\n  function mut(args, vm) {\n    var rawRef = args.positional.at(0);\n\n    if (typeof rawRef[INVOKE] === 'function') {\n      return rawRef;\n    } // TODO: Improve this error message. This covers at least two distinct\n    // cases:\n    //\n    // 1. (mut \"not a path\") – passing a literal, result from a helper\n    //    invocation, etc\n    //\n    // 2. (mut receivedValue) – passing a value received from the caller\n    //    that was originally derived from a literal, result from a helper\n    //    invocation, etc\n    //\n    // This message is alright for the first case, but could be quite\n    // confusing for the second case.\n\n\n    (true && !(rawRef[_reference.UPDATE_REFERENCED_VALUE] !== undefined) && (0, _debug.assert)('You can only pass a path to mut', rawRef[_reference.UPDATE_REFERENCED_VALUE] !== undefined));\n    return new MutReference(rawRef, vm.env);\n  }\n  /**\n  @module ember\n  */\n\n\n  var ACTION = (0, _utils.symbol)('ACTION');\n  /**\n    The `{{action}}` helper provides a way to pass triggers for behavior (usually\n    just a function) between components, and into components from controllers.\n  \n    ### Passing functions with the action helper\n  \n    There are three contexts an action helper can be used in. The first two\n    contexts to discuss are attribute context, and Handlebars value context.\n  \n    ```handlebars\n    {{! An example of attribute context }}\n    <div onclick={{action \"save\"}}></div>\n    {{! Examples of Handlebars value context }}\n    {{input on-input=(action \"save\")}}\n    {{yield (action \"refreshData\") andAnotherParam}}\n    ```\n  \n    In these contexts,\n    the helper is called a \"closure action\" helper. Its behavior is simple:\n    If passed a function name, read that function off the `actions` property\n    of the current context. Once that function is read, or immediately if a function was\n    passed, create a closure over that function and any arguments.\n    The resulting value of an action helper used this way is simply a function.\n  \n    For example, in the attribute context:\n  \n    ```handlebars\n    {{! An example of attribute context }}\n    <div onclick={{action \"save\"}}></div>\n    ```\n  \n    The resulting template render logic would be:\n  \n    ```js\n    var div = document.createElement('div');\n    var actionFunction = (function(context){\n      return function() {\n        return context.actions.save.apply(context, arguments);\n      };\n    })(context);\n    div.onclick = actionFunction;\n    ```\n  \n    Thus when the div is clicked, the action on that context is called.\n    Because the `actionFunction` is just a function, closure actions can be\n    passed between components and still execute in the correct context.\n  \n    Here is an example action handler on a component:\n  \n    ```app/components/my-component.js\n    import Component from '@glimmer/component';\n    import { action } from '@ember/object';\n  \n    export default class extends Component {\n      @action\n      save() {\n        this.model.save();\n      }\n    }\n    ```\n  \n    Actions are always looked up on the `actions` property of the current context.\n    This avoids collisions in the naming of common actions, such as `destroy`.\n    Two options can be passed to the `action` helper when it is used in this way.\n  \n    * `target=someProperty` will look to `someProperty` instead of the current\n      context for the `actions` hash. This can be useful when targeting a\n      service for actions.\n    * `value=\"target.value\"` will read the path `target.value` off the first\n      argument to the action when it is called and rewrite the first argument\n      to be that value. This is useful when attaching actions to event listeners.\n  \n    ### Invoking an action\n  \n    Closure actions curry both their scope and any arguments. When invoked, any\n    additional arguments are added to the already curried list.\n    Actions should be invoked using the [sendAction](/ember/release/classes/Component/methods/sendAction?anchor=sendAction)\n    method. The first argument to `sendAction` is the action to be called, and\n    additional arguments are passed to the action function. This has interesting\n    properties combined with currying of arguments. For example:\n  \n    ```app/components/update-name.js\n    import Component from '@glimmer/component';\n    import { action } from '@ember/object';\n  \n    export default class extends Component {\n      @action\n      setName(model, name) {\n        model.set('name', name);\n      }\n    }\n    ```\n  \n    ```app/components/update-name.hbs\n    {{input on-input=(action (action 'setName' @model) value=\"target.value\")}}\n    ```\n  \n    The first argument (`@model`) was curried over, and the run-time argument (`event`)\n    becomes a second argument. Action calls can be nested this way because each simply\n    returns a function. Any function can be passed to the `{{action}}` helper, including\n    other actions.\n  \n    Actions invoked with `sendAction` have the same currying behavior as demonstrated\n    with `on-input` above. For example:\n  \n    ```app/components/my-input.js\n    import Component from '@glimmer/component';\n    import { action } from '@ember/object';\n  \n    export default class extends Component {\n      @action\n      setName(model, name) {\n        model.set('name', name);\n      }\n    }\n    ```\n  \n    ```handlebars\n    <MyInput @submit={{action 'setName' @model}} />\n    ```\n  \n    or\n  \n    ```handlebars\n    {{my-input submit=(action 'setName' @model)}}\n    ```\n  \n    ```app/components/my-component.js\n    import Component from '@ember/component';\n  \n    export default Component.extend({\n      click() {\n        // Note that model is not passed, it was curried in the template\n        this.sendAction('submit', 'bob');\n      }\n    });\n    ```\n  \n    ### Attaching actions to DOM elements\n  \n    The third context of the `{{action}}` helper can be called \"element space\".\n    For example:\n  \n    ```handlebars\n    {{! An example of element space }}\n    <div {{action \"save\"}}></div>\n    ```\n  \n    Used this way, the `{{action}}` helper provides a useful shortcut for\n    registering an HTML element in a template for a single DOM event and\n    forwarding that interaction to the template's context (controller or component).\n    If the context of a template is a controller, actions used this way will\n    bubble to routes when the controller does not implement the specified action.\n    Once an action hits a route, it will bubble through the route hierarchy.\n  \n    ### Event Propagation\n  \n    `{{action}}` helpers called in element space can control event bubbling. Note\n    that the closure style actions cannot.\n  \n    Events triggered through the action helper will automatically have\n    `.preventDefault()` called on them. You do not need to do so in your event\n    handlers. If you need to allow event propagation (to handle file inputs for\n    example) you can supply the `preventDefault=false` option to the `{{action}}` helper:\n  \n    ```handlebars\n    <div {{action \"sayHello\" preventDefault=false}}>\n      <input type=\"file\" />\n      <input type=\"checkbox\" />\n    </div>\n    ```\n  \n    To disable bubbling, pass `bubbles=false` to the helper:\n  \n    ```handlebars\n    <button {{action 'edit' post bubbles=false}}>Edit</button>\n    ```\n  \n    To disable bubbling with closure style actions you must create your own\n    wrapper helper that makes use of `event.stopPropagation()`:\n  \n    ```handlebars\n    <div onclick={{disable-bubbling (action \"sayHello\")}}>Hello</div>\n    ```\n  \n    ```app/helpers/disable-bubbling.js\n    import { helper } from '@ember/component/helper';\n  \n    export function disableBubbling([action]) {\n      return function(event) {\n        event.stopPropagation();\n        return action(event);\n      };\n    }\n    export default helper(disableBubbling);\n    ```\n  \n    If you need the default handler to trigger you should either register your\n    own event handler, or use event methods on your view class. See\n    [\"Responding to Browser Events\"](/ember/release/classes/Component)\n    in the documentation for `Component` for more information.\n  \n    ### Specifying DOM event type\n  \n    `{{action}}` helpers called in element space can specify an event type.\n    By default the `{{action}}` helper registers for DOM `click` events. You can\n    supply an `on` option to the helper to specify a different DOM event name:\n  \n    ```handlebars\n    <div {{action \"anActionName\" on=\"doubleClick\"}}>\n      click me\n    </div>\n    ```\n  \n    See [\"Event Names\"](/ember/release/classes/Component) for a list of\n    acceptable DOM event names.\n  \n    ### Specifying whitelisted modifier keys\n  \n    `{{action}}` helpers called in element space can specify modifier keys.\n    By default the `{{action}}` helper will ignore click events with pressed modifier\n    keys. You can supply an `allowedKeys` option to specify which keys should not be ignored.\n  \n    ```handlebars\n    <div {{action \"anActionName\" allowedKeys=\"alt\"}}>\n      click me\n    </div>\n    ```\n  \n    This way the action will fire when clicking with the alt key pressed down.\n    Alternatively, supply \"any\" to the `allowedKeys` option to accept any combination of modifier keys.\n  \n    ```handlebars\n    <div {{action \"anActionName\" allowedKeys=\"any\"}}>\n      click me with any key pressed\n    </div>\n    ```\n  \n    ### Specifying a Target\n  \n    A `target` option can be provided to the helper to change\n    which object will receive the method call. This option must be a path\n    to an object, accessible in the current context:\n  \n    ```app/templates/application.hbs\n    <div {{action \"anActionName\" target=someService}}>\n      click me\n    </div>\n    ```\n  \n    ```app/controllers/application.js\n    import Controller from '@ember/controller';\n    import { inject as service } from '@ember/service';\n  \n    export default class extends Controller {\n      @service someService;\n    }\n    ```\n  \n    @method action\n    @for Ember.Templates.helpers\n    @public\n  */\n\n  function action(args, vm) {\n    var {\n      named,\n      positional\n    } = args;\n    var capturedArgs = positional.capture(); // The first two argument slots are reserved.\n    // pos[0] is the context (or `this`)\n    // pos[1] is the action name or function\n    // Anything else is an action argument.\n\n    var [context, action, ...restArgs] = capturedArgs.references; // TODO: Is there a better way of doing this?\n\n    var debugKey = action.propertyKey;\n    var target = named.has('target') ? named.get('target') : context;\n    var processArgs = makeArgsProcessor(named.has('value') && named.get('value'), restArgs);\n    var fn;\n\n    if (typeof action[INVOKE] === 'function') {\n      fn = makeClosureAction(action, action, action[INVOKE], processArgs, debugKey);\n    } else if ((0, _validator.isConst)(target) && (0, _validator.isConst)(action)) {\n      fn = makeClosureAction(context.value(), target.value(), action.value(), processArgs, debugKey);\n    } else {\n      fn = makeDynamicClosureAction(context.value(), target, action, processArgs, debugKey);\n    }\n\n    fn[ACTION] = true;\n    return new UnboundRootReference(fn, vm.env);\n  }\n\n  function NOOP$1(args) {\n    return args;\n  }\n\n  function makeArgsProcessor(valuePathRef, actionArgsRef) {\n    var mergeArgs;\n\n    if (actionArgsRef.length > 0) {\n      mergeArgs = args => {\n        return actionArgsRef.map(ref => ref.value()).concat(args);\n      };\n    }\n\n    var readValue;\n\n    if (valuePathRef) {\n      readValue = args => {\n        var valuePath = valuePathRef.value();\n\n        if (valuePath && args.length > 0) {\n          args[0] = (0, _metal.get)(args[0], valuePath);\n        }\n\n        return args;\n      };\n    }\n\n    if (mergeArgs && readValue) {\n      return args => {\n        return readValue(mergeArgs(args));\n      };\n    } else {\n      return mergeArgs || readValue || NOOP$1;\n    }\n  }\n\n  function makeDynamicClosureAction(context, targetRef, actionRef, processArgs, debugKey) {\n    // We don't allow undefined/null values, so this creates a throw-away action to trigger the assertions\n    if (true\n    /* DEBUG */\n    ) {\n      makeClosureAction(context, targetRef.value(), actionRef.value(), processArgs, debugKey);\n    }\n\n    return (...args) => {\n      return makeClosureAction(context, targetRef.value(), actionRef.value(), processArgs, debugKey)(...args);\n    };\n  }\n\n  function makeClosureAction(context, target, action, processArgs, debugKey) {\n    var self;\n    var fn;\n    (true && !(action !== undefined && action !== null) && (0, _debug.assert)(`Action passed is null or undefined in (action) from ${target}.`, action !== undefined && action !== null));\n\n    if (typeof action[INVOKE] === 'function') {\n      self = action;\n      fn = action[INVOKE];\n    } else {\n      var typeofAction = typeof action;\n\n      if (typeofAction === 'string') {\n        self = target;\n        fn = target.actions && target.actions[action];\n        (true && !(fn) && (0, _debug.assert)(`An action named '${action}' was not found in ${target}`, fn));\n      } else if (typeofAction === 'function') {\n        self = context;\n        fn = action;\n      } else {\n        // tslint:disable-next-line:max-line-length\n        (true && !(false) && (0, _debug.assert)(`An action could not be made for \\`${debugKey || action}\\` in ${target}. Please confirm that you are using either a quoted action name (i.e. \\`(action '${debugKey || 'myAction'}')\\`) or a function available in ${target}.`, false));\n      }\n    }\n\n    return (...args) => {\n      var payload = {\n        target: self,\n        args,\n        label: '@glimmer/closure-action'\n      };\n      return (0, _instrumentation.flaggedInstrument)('interaction.ember-action', payload, () => {\n        return (0, _runloop.join)(self, fn, ...processArgs(args));\n      });\n    };\n  } // inputs needed by CurlyComponents (attrs and props, with mutable\n  // cells, etc).\n\n\n  function processComponentArgs(namedArgs) {\n    var keys = namedArgs.names;\n    var attrs = namedArgs.value();\n    var props = Object.create(null);\n    var args = Object.create(null);\n    props[ARGS] = args;\n\n    for (var i = 0; i < keys.length; i++) {\n      var name = keys[i];\n      var ref = namedArgs.get(name);\n      var value = attrs[name];\n\n      if (typeof value === 'function' && value[ACTION]) {\n        attrs[name] = value;\n      } else if (ref[_reference.UPDATE_REFERENCED_VALUE]) {\n        attrs[name] = new MutableCell(ref, value);\n      }\n\n      args[name] = ref;\n      props[name] = value;\n    }\n\n    props.attrs = attrs;\n    return props;\n  }\n\n  var REF = (0, _utils.symbol)('REF');\n\n  class MutableCell {\n    constructor(ref, value) {\n      this[_views.MUTABLE_CELL] = true;\n      this[REF] = ref;\n      this.value = value;\n    }\n\n    update(val) {\n      this[REF][_reference.UPDATE_REFERENCED_VALUE](val);\n    }\n\n  }\n\n  var __rest = undefined && undefined.__rest || function (s, e) {\n    var t = {};\n\n    for (var p in s) {\n      if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0) t[p] = s[p];\n    }\n\n    if (s != null && typeof Object.getOwnPropertySymbols === \"function\") for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++) {\n      if (e.indexOf(p[i]) < 0 && Object.prototype.propertyIsEnumerable.call(s, p[i])) t[p[i]] = s[p[i]];\n    }\n    return t;\n  };\n\n  function aliasIdToElementId(args, props) {\n    if (args.named.has('id')) {\n      // tslint:disable-next-line:max-line-length\n      (true && !(!args.named.has('elementId')) && (0, _debug.assert)(`You cannot invoke a component with both 'id' and 'elementId' at the same time.`, !args.named.has('elementId')));\n      props.elementId = props.id;\n    }\n  } // We must traverse the attributeBindings in reverse keeping track of\n  // what has already been applied. This is essentially refining the concatenated\n  // properties applying right to left.\n\n\n  function applyAttributeBindings(attributeBindings, component, rootRef, operations, environment) {\n    var seen = [];\n    var i = attributeBindings.length - 1;\n\n    while (i !== -1) {\n      var binding = attributeBindings[i];\n      var parsed = AttributeBinding.parse(binding);\n      var attribute = parsed[1];\n\n      if (seen.indexOf(attribute) === -1) {\n        seen.push(attribute);\n        AttributeBinding.install(component, rootRef, parsed, operations, environment);\n      }\n\n      i--;\n    }\n\n    if (seen.indexOf('id') === -1) {\n      var id$$1 = component.elementId ? component.elementId : (0, _utils.guidFor)(component);\n      operations.setAttribute('id', _runtime2.PrimitiveReference.create(id$$1), false, null);\n    }\n\n    if (_deprecatedFeatures.EMBER_COMPONENT_IS_VISIBLE && installIsVisibleBinding !== undefined && seen.indexOf('style') === -1) {\n      installIsVisibleBinding(rootRef, operations, environment);\n    }\n  }\n\n  var DEFAULT_LAYOUT = (0, _container.privatize)`template:components/-default`;\n  var EMPTY_POSITIONAL_ARGS = [];\n  (0, _debug.debugFreeze)(EMPTY_POSITIONAL_ARGS);\n\n  class CurlyComponentManager extends AbstractManager {\n    templateFor(component) {\n      var {\n        layout,\n        layoutName\n      } = component;\n      var owner = (0, _owner.getOwner)(component);\n      var factory;\n\n      if (layout === undefined) {\n        if (layoutName !== undefined) {\n          var _factory = owner.lookup(`template:${layoutName}`);\n\n          (true && !(_factory !== undefined) && (0, _debug.assert)(`Layout \\`${layoutName}\\` not found!`, _factory !== undefined));\n          factory = _factory;\n        } else {\n          factory = owner.lookup(DEFAULT_LAYOUT);\n        }\n      } else if (isTemplateFactory(layout)) {\n        factory = layout;\n      } else {\n        // we were provided an instance already\n        return layout;\n      }\n\n      return factory(owner);\n    }\n\n    getJitStaticLayout(state, _resolver) {\n      return (0, _util.unwrapTemplate)(state.template).asLayout();\n    }\n\n    getJitDynamicLayout(bucket) {\n      var component = bucket.component;\n      var template$$1 = this.templateFor(component);\n\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        bucket.environment.extra.debugRenderTree.setTemplate(bucket, template$$1);\n      }\n\n      return template$$1;\n    }\n\n    getTagName(state) {\n      var {\n        component,\n        hasWrappedElement\n      } = state;\n\n      if (!hasWrappedElement) {\n        return null;\n      }\n\n      return component && component.tagName || 'div';\n    }\n\n    getCapabilities(state) {\n      return state.capabilities;\n    }\n\n    prepareArgs(state, args) {\n      if (args.named.has('__ARGS__')) {\n        var _a = args.named.capture().map,\n            {\n          __ARGS__\n        } = _a,\n            rest = __rest(_a, [\"__ARGS__\"]);\n\n        var prepared = {\n          positional: EMPTY_POSITIONAL_ARGS,\n          named: (0, _polyfills.assign)({}, rest, __ARGS__.value())\n        };\n        return prepared;\n      }\n\n      var {\n        positionalParams\n      } = state.ComponentClass.class; // early exits\n\n      if (positionalParams === undefined || positionalParams === null || args.positional.length === 0) {\n        return null;\n      }\n\n      var named;\n\n      if (typeof positionalParams === 'string') {\n        (true && !(!args.named.has(positionalParams)) && (0, _debug.assert)(`You cannot specify positional parameters and the hash argument \\`${positionalParams}\\`.`, !args.named.has(positionalParams)));\n        named = {\n          [positionalParams]: args.positional.capture()\n        };\n        (0, _polyfills.assign)(named, args.named.capture().map);\n      } else if (Array.isArray(positionalParams) && positionalParams.length > 0) {\n        var count = Math.min(positionalParams.length, args.positional.length);\n        named = {};\n        (0, _polyfills.assign)(named, args.named.capture().map);\n\n        for (var i = 0; i < count; i++) {\n          var name = positionalParams[i];\n          (true && !(!args.named.has(name)) && (0, _debug.assert)(`You cannot specify both a positional param (at position ${i}) and the hash argument \\`${name}\\`.`, !args.named.has(name)));\n          named[name] = args.positional.at(i);\n        }\n      } else {\n        return null;\n      }\n\n      return {\n        positional: _util.EMPTY_ARRAY,\n        named\n      };\n    }\n    /*\n     * This hook is responsible for actually instantiating the component instance.\n     * It also is where we perform additional bookkeeping to support legacy\n     * features like exposed by view mixins like ChildViewSupport, ActionSupport,\n     * etc.\n     */\n\n\n    create(environment, state, args, dynamicScope, callerSelfRef, hasBlock) {\n      // Get the nearest concrete component instance from the scope. \"Virtual\"\n      // components will be skipped.\n      var parentView = dynamicScope.view; // Get the Ember.Component subclass to instantiate for this component.\n\n      var factory = state.ComponentClass; // Capture the arguments, which tells Glimmer to give us our own, stable\n      // copy of the Arguments object that is safe to hold on to between renders.\n\n      var capturedArgs = args.named.capture();\n      var props = processComponentArgs(capturedArgs); // Alias `id` argument to `elementId` property on the component instance.\n\n      aliasIdToElementId(args, props); // Set component instance's parentView property to point to nearest concrete\n      // component.\n\n      props.parentView = parentView; // Set whether this component was invoked with a block\n      // (`{{#my-component}}{{/my-component}}`) or without one\n      // (`{{my-component}}`).\n\n      props[HAS_BLOCK] = hasBlock; // Save the current `this` context of the template as the component's\n      // `_target`, so bubbled actions are routed to the right place.\n\n      props._target = callerSelfRef.value(); // static layout asserts CurriedDefinition\n\n      if (state.template) {\n        props.layout = state.template;\n      } // caller:\n      // <FaIcon @name=\"bug\" />\n      //\n      // callee:\n      // <i class=\"fa-{{@name}}\"></i>\n      // Now that we've built up all of the properties to set on the component instance,\n      // actually create it.\n\n\n      var component = factory.create(props);\n      var finalizer = (0, _instrumentation._instrumentStart)('render.component', initialRenderInstrumentDetails, component); // We become the new parentView for downstream components, so save our\n      // component off on the dynamic scope.\n\n      dynamicScope.view = component; // Unless we're the root component, we need to add ourselves to our parent\n      // component's childViews array.\n\n      if (parentView !== null && parentView !== undefined) {\n        (0, _views.addChildView)(parentView, component);\n      }\n\n      component.trigger('didReceiveAttrs');\n      var hasWrappedElement = component.tagName !== ''; // We usually do this in the `didCreateElement`, but that hook doesn't fire for tagless components\n\n      if (!hasWrappedElement) {\n        if (environment.isInteractive) {\n          component.trigger('willRender');\n        }\n\n        component._transitionTo('hasElement');\n\n        if (environment.isInteractive) {\n          component.trigger('willInsertElement');\n        }\n      } // Track additional lifecycle metadata about this component in a state bucket.\n      // Essentially we're saving off all the state we'll need in the future.\n\n\n      var bucket = new ComponentStateBucket(environment, component, capturedArgs, finalizer, hasWrappedElement);\n\n      if (args.named.has('class')) {\n        bucket.classRef = args.named.get('class');\n      }\n\n      if (true\n      /* DEBUG */\n      ) {\n        processComponentInitializationAssertions(component, props);\n      }\n\n      if (environment.isInteractive && hasWrappedElement) {\n        component.trigger('willRender');\n      }\n\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        environment.extra.debugRenderTree.create(bucket, {\n          type: 'component',\n          name: state.name,\n          args: args.capture(),\n          instance: component,\n          template: state.template\n        });\n      }\n\n      return bucket;\n    }\n\n    getSelf({\n      rootRef\n    }) {\n      return rootRef;\n    }\n\n    didCreateElement({\n      component,\n      classRef,\n      environment,\n      rootRef\n    }, element, operations) {\n      (0, _views.setViewElement)(component, element);\n      (0, _views.setElementView)(element, component);\n      var {\n        attributeBindings,\n        classNames,\n        classNameBindings\n      } = component;\n\n      if (attributeBindings && attributeBindings.length) {\n        applyAttributeBindings(attributeBindings, component, rootRef, operations, environment);\n      } else {\n        var id$$1 = component.elementId ? component.elementId : (0, _utils.guidFor)(component);\n        operations.setAttribute('id', _runtime2.PrimitiveReference.create(id$$1), false, null);\n\n        if (_deprecatedFeatures.EMBER_COMPONENT_IS_VISIBLE) {\n          installIsVisibleBinding(rootRef, operations, environment);\n        }\n      }\n\n      if (classRef) {\n        var ref = new SimpleClassNameBindingReference(classRef, classRef['propertyKey']);\n        operations.setAttribute('class', ref, false, null);\n      }\n\n      if (classNames && classNames.length) {\n        classNames.forEach(name => {\n          operations.setAttribute('class', _runtime2.PrimitiveReference.create(name), false, null);\n        });\n      }\n\n      if (classNameBindings && classNameBindings.length) {\n        classNameBindings.forEach(binding => {\n          ClassNameBinding.install(element, rootRef, binding, operations);\n        });\n      }\n\n      operations.setAttribute('class', _runtime2.PrimitiveReference.create('ember-view'), false, null);\n\n      if ('ariaRole' in component) {\n        operations.setAttribute('role', referenceForKey(rootRef, 'ariaRole'), false, null);\n      }\n\n      component._transitionTo('hasElement');\n\n      if (environment.isInteractive) {\n        component.trigger('willInsertElement');\n      }\n    }\n\n    didRenderLayout(bucket, bounds) {\n      bucket.component[BOUNDS] = bounds;\n      bucket.finalize();\n\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        bucket.environment.extra.debugRenderTree.didRender(bucket, bounds);\n      }\n    }\n\n    getTag({\n      args,\n      component\n    }) {\n      return args ? (0, _validator.combine)([args.tag, component[DIRTY_TAG]]) : component[DIRTY_TAG];\n    }\n\n    didCreate({\n      component,\n      environment\n    }) {\n      if (environment.isInteractive) {\n        component._transitionTo('inDOM');\n\n        component.trigger('didInsertElement');\n        component.trigger('didRender');\n      }\n    }\n\n    update(bucket) {\n      var {\n        component,\n        args,\n        argsRevision,\n        environment\n      } = bucket;\n\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        environment.extra.debugRenderTree.update(bucket);\n      }\n\n      bucket.finalizer = (0, _instrumentation._instrumentStart)('render.component', rerenderInstrumentDetails, component);\n\n      if (args && !(0, _validator.validateTag)(args.tag, argsRevision)) {\n        var props = processComponentArgs(args);\n        bucket.argsRevision = (0, _validator.valueForTag)(args.tag);\n        component[IS_DISPATCHING_ATTRS] = true;\n        component.setProperties(props);\n        component[IS_DISPATCHING_ATTRS] = false;\n        component.trigger('didUpdateAttrs');\n        component.trigger('didReceiveAttrs');\n      }\n\n      if (environment.isInteractive) {\n        component.trigger('willUpdate');\n        component.trigger('willRender');\n      }\n    }\n\n    didUpdateLayout(bucket, bounds) {\n      bucket.finalize();\n\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        bucket.environment.extra.debugRenderTree.didRender(bucket, bounds);\n      }\n    }\n\n    didUpdate({\n      component,\n      environment\n    }) {\n      if (environment.isInteractive) {\n        component.trigger('didUpdate');\n        component.trigger('didRender');\n      }\n    }\n\n    getDestructor(bucket) {\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        return {\n          willDestroy() {\n            bucket.willDestroy();\n          },\n\n          destroy() {\n            bucket.environment.extra.debugRenderTree.willDestroy(bucket);\n            bucket.destroy();\n          }\n\n        };\n      } else {\n        return bucket;\n      }\n    }\n\n  }\n\n  function processComponentInitializationAssertions(component, props) {\n    (true && !((() => {\n      var {\n        classNameBindings\n      } = component;\n\n      for (var i = 0; i < classNameBindings.length; i++) {\n        var binding = classNameBindings[i];\n\n        if (typeof binding !== 'string' || binding.length === 0) {\n          return false;\n        }\n      }\n\n      return true;\n    })()) && (0, _debug.assert)(`classNameBindings must be non-empty strings: ${component}`, (() => {\n      var {\n        classNameBindings\n      } = component;\n\n      for (var i = 0; i < classNameBindings.length; i++) {\n        var binding = classNameBindings[i];\n\n        if (typeof binding !== 'string' || binding.length === 0) {\n          return false;\n        }\n      }\n\n      return true;\n    })()));\n    (true && !((() => {\n      var {\n        classNameBindings\n      } = component;\n\n      for (var i = 0; i < classNameBindings.length; i++) {\n        var binding = classNameBindings[i];\n\n        if (binding.split(' ').length > 1) {\n          return false;\n        }\n      }\n\n      return true;\n    })()) && (0, _debug.assert)(`classNameBindings must not have spaces in them: ${component}`, (() => {\n      var {\n        classNameBindings\n      } = component;\n\n      for (var i = 0; i < classNameBindings.length; i++) {\n        var binding = classNameBindings[i];\n\n        if (binding.split(' ').length > 1) {\n          return false;\n        }\n      }\n\n      return true;\n    })()));\n    (true && !(component.tagName !== '' || !component.classNameBindings || component.classNameBindings.length === 0) && (0, _debug.assert)(`You cannot use \\`classNameBindings\\` on a tag-less component: ${component}`, component.tagName !== '' || !component.classNameBindings || component.classNameBindings.length === 0));\n    (true && !(component.tagName !== '' || props.id === component.elementId || !component.elementId && component.elementId !== '') && (0, _debug.assert)(`You cannot use \\`elementId\\` on a tag-less component: ${component}`, component.tagName !== '' || props.id === component.elementId || !component.elementId && component.elementId !== ''));\n    (true && !(component.tagName !== '' || !component.attributeBindings || component.attributeBindings.length === 0) && (0, _debug.assert)(`You cannot use \\`attributeBindings\\` on a tag-less component: ${component}`, component.tagName !== '' || !component.attributeBindings || component.attributeBindings.length === 0));\n  }\n\n  function initialRenderInstrumentDetails(component) {\n    return component.instrumentDetails({\n      initialRender: true\n    });\n  }\n\n  function rerenderInstrumentDetails(component) {\n    return component.instrumentDetails({\n      initialRender: false\n    });\n  }\n\n  var CURLY_CAPABILITIES = {\n    dynamicLayout: true,\n    dynamicTag: true,\n    prepareArgs: true,\n    createArgs: true,\n    attributeHook: true,\n    elementHook: true,\n    createCaller: true,\n    dynamicScope: true,\n    updateHook: true,\n    createInstance: true,\n    wrapped: true,\n    willDestroy: true\n  };\n  var CURLY_COMPONENT_MANAGER = new CurlyComponentManager();\n\n  class CurlyComponentDefinition {\n    constructor(name, ComponentClass, template$$1, args) {\n      this.name = name;\n      this.ComponentClass = ComponentClass;\n      this.template = template$$1;\n      this.args = args;\n      this.manager = CURLY_COMPONENT_MANAGER;\n      this.state = {\n        name,\n        ComponentClass,\n        template: template$$1,\n        capabilities: CURLY_CAPABILITIES\n      };\n    }\n\n  }\n\n  class RootComponentManager extends CurlyComponentManager {\n    constructor(component) {\n      super();\n      this.component = component;\n    }\n\n    getJitStaticLayout(_state) {\n      var template = this.templateFor(this.component);\n      return (0, _util.unwrapTemplate)(template).asWrappedLayout();\n    }\n\n    create(environment, state, _args, dynamicScope) {\n      var component = this.component;\n      var finalizer = (0, _instrumentation._instrumentStart)('render.component', initialRenderInstrumentDetails, component);\n      dynamicScope.view = component;\n      var hasWrappedElement = component.tagName !== ''; // We usually do this in the `didCreateElement`, but that hook doesn't fire for tagless components\n\n      if (!hasWrappedElement) {\n        if (environment.isInteractive) {\n          component.trigger('willRender');\n        }\n\n        component._transitionTo('hasElement');\n\n        if (environment.isInteractive) {\n          component.trigger('willInsertElement');\n        }\n      }\n\n      if (true\n      /* DEBUG */\n      ) {\n        processComponentInitializationAssertions(component, {});\n      }\n\n      var bucket = new ComponentStateBucket(environment, component, null, finalizer, hasWrappedElement);\n\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        environment.extra.debugRenderTree.create(bucket, {\n          type: 'component',\n          name: state.name,\n          args: _runtime2.EMPTY_ARGS,\n          instance: component,\n          template: state.template\n        });\n      }\n\n      return bucket;\n    }\n\n  } // ROOT is the top-level template it has nothing but one yield.\n  // it is supposed to have a dummy element\n\n\n  var ROOT_CAPABILITIES = {\n    dynamicLayout: false,\n    dynamicTag: true,\n    prepareArgs: false,\n    createArgs: false,\n    attributeHook: true,\n    elementHook: true,\n    createCaller: true,\n    dynamicScope: true,\n    updateHook: true,\n    createInstance: true,\n    wrapped: true,\n    willDestroy: false\n  };\n\n  class RootComponentDefinition {\n    constructor(component) {\n      this.component = component;\n      var manager = new RootComponentManager(component);\n      this.manager = manager;\n\n      var factory = _container.FACTORY_FOR.get(component);\n\n      this.state = {\n        name: factory.fullName.slice(10),\n        capabilities: ROOT_CAPABILITIES,\n        ComponentClass: factory\n      };\n    }\n\n    getTag({\n      component\n    }) {\n      return component[DIRTY_TAG];\n    }\n\n  }\n  /* globals module, URL */\n\n\n  var nodeURL;\n  var parsingNode;\n\n  function installProtocolForURL(environment) {\n    var protocol;\n\n    if (_browserEnvironment.hasDOM) {\n      protocol = browserProtocolForURL.call(environment, 'foobar:baz');\n    } // Test to see if our DOM implementation parses\n    // and normalizes URLs.\n\n\n    if (protocol === 'foobar:') {\n      // Swap in the method that doesn't do this test now that\n      // we know it works.\n      environment.protocolForURL = browserProtocolForURL;\n    } else if (typeof URL === 'object') {\n      // URL globally provided, likely from FastBoot's sandbox\n      nodeURL = URL;\n      environment.protocolForURL = nodeProtocolForURL;\n    } else if (typeof module !== 'undefined' && typeof module.require === 'function') {\n      // Otherwise, we need to fall back to our own URL parsing.\n      // Global `require` is shadowed by Ember's loader so we have to use the fully\n      // qualified `module.require`.\n      // tslint:disable-next-line:no-require-imports\n      nodeURL = module.require('url');\n      environment.protocolForURL = nodeProtocolForURL;\n    } else {\n      throw new Error('Could not find valid URL parsing mechanism for URL Sanitization');\n    }\n  }\n\n  function browserProtocolForURL(url) {\n    if (!parsingNode) {\n      parsingNode = document.createElement('a');\n    }\n\n    parsingNode.href = url;\n    return parsingNode.protocol;\n  }\n\n  function nodeProtocolForURL(url) {\n    var protocol = null;\n\n    if (typeof url === 'string') {\n      protocol = nodeURL.parse(url).protocol;\n    }\n\n    return protocol === null ? ':' : protocol;\n  }\n\n  var GUID = 0;\n\n  function isPathNode(node) {\n    return node.type === 'root' || node.type === 'argument' || node.type === 'property' || node.type === 'iterator';\n  }\n\n  class Ref {\n    constructor(value) {\n      this.id = GUID++;\n      this.value = value;\n    }\n\n    get() {\n      return this.value;\n    }\n\n    release() {\n      (true && !(this.value !== null) && (0, _debug.assert)('BUG: double release?', this.value !== null));\n      this.value = null;\n    }\n\n    toString() {\n      var label = `Ref ${this.id}`;\n\n      if (this.value === null) {\n        return `${label} (released)`;\n      } else {\n        try {\n          return `${label}: ${this.value}`;\n        } catch (_a) {\n          return label;\n        }\n      }\n    }\n\n  }\n\n  var _repeat = String.prototype.repeat || function (count) {\n    return new Array(count + 1).join(this);\n  };\n\n  function repeatString(str, count) {\n    return _repeat.call(str, count);\n  }\n\n  class DebugRenderTree {\n    constructor() {\n      this.stack = new _util.Stack();\n      this.refs = new WeakMap();\n      this.roots = new Set();\n      this.nodes = new WeakMap();\n      this.pathNodes = new WeakMap();\n    }\n\n    begin() {\n      this.reset();\n    }\n\n    create(state, node) {\n      var internalNode = (0, _polyfills.assign)({}, node, {\n        bounds: null,\n        refs: new Set(),\n        paths: new Set()\n      });\n      this.nodes.set(state, internalNode);\n      this.appendChild(internalNode, state);\n      this.enter(state);\n    }\n\n    update(state) {\n      this.enter(state);\n    } // for dynamic layouts\n\n\n    setTemplate(state, template) {\n      this.nodeFor(state).template = template;\n    }\n\n    didRender(state, bounds) {\n      (true && !(this.stack.current === state) && (0, _debug.assert)(`BUG: expecting ${this.stack.current}, got ${state}`, this.stack.current === state));\n      this.nodeFor(state).bounds = bounds;\n      this.exit();\n    }\n\n    willDestroy(state) {\n      (0, _util.expect)(this.refs.get(state), 'BUG: missing ref').release();\n    }\n\n    commit() {\n      this.reset();\n    }\n\n    capture() {\n      return this.captureRefs(this.roots);\n    }\n\n    createPath(pathRef, name, type, parentRef) {\n      (true && !(!this.pathNodes.has(pathRef)) && (0, _debug.assert)('BUG: Attempted to register a path that had already been registered', !this.pathNodes.has(pathRef)));\n      var {\n        current\n      } = this.stack;\n\n      if (current === null) {\n        // Not currently in a rendering context, don't register the node\n        return;\n      }\n\n      var currentNode = (0, _util.expect)(this.nodes.get(current), 'BUG: Attempted to create a path, but there is no current render node');\n      var parent;\n\n      if (parentRef === null) {\n        parent = currentNode;\n      } else {\n        var {\n          named\n        } = currentNode.args;\n        var refIndex = named.references.indexOf(parentRef);\n\n        if (refIndex !== -1) {\n          parent = {\n            parent: currentNode,\n            type: 'argument',\n            name: `@${named.names[refIndex]}`,\n            paths: new Set()\n          };\n        } else if (this.pathNodes.has(parentRef)) {\n          parent = this.pathNodes.get(parentRef);\n        } else {\n          // Some RootReferences get created before a component context has been\n          // setup (root, curly). This is mainly because the debugRenderTree is\n          // tied to the manager hooks, and not built into the VM directly. In\n          // these cases, we setup the path lazily when the first property is\n          // accessed.\n          this.createPath(parentRef, 'this', 'root', null);\n          parent = this.pathNodes.get(parentRef);\n        }\n      }\n\n      var pathNode = {\n        name,\n        type,\n        parent,\n        paths: new Set()\n      };\n      parent.paths.add(pathNode);\n      this.pathNodes.set(pathRef, pathNode);\n    }\n\n    logRenderStackForPath(pathRef) {\n      var node = (0, _util.expect)(this.pathNodes.get(pathRef), 'BUG: Attempted to create a log for a path reference, but no node exist for that reference');\n      var pathParts = [];\n\n      while (node !== undefined && isPathNode(node)) {\n        if (node.type === 'iterator') {\n          // Iterator items are a combination of their own name (the key of the item) and\n          // their parent, the iterable itself.\n          var part = `${node.parent.name}[${node.name}]`;\n          pathParts.push(part);\n          node = node.parent;\n        } else {\n          pathParts.unshift(node.name);\n        }\n\n        node = node.parent;\n      }\n\n      var messageParts = [pathParts.join('.')];\n\n      while (node !== undefined) {\n        if (node.type === 'outlet' || node.name === '-top-level') {\n          node = node.parent;\n          continue;\n        }\n\n        messageParts.unshift(node.name);\n        node = node.parent;\n      }\n\n      return messageParts.map((part, index) => `${repeatString(' ', index * 2)}${part}`).join('\\n');\n    }\n\n    reset() {\n      if (this.stack.size !== 0) {\n        // We probably encountered an error during the rendering loop. This will\n        // likely trigger undefined behavior and memory leaks as the error left\n        // things in an inconsistent state. It is recommended that the user\n        // refresh the page.\n        // TODO: We could warn here? But this happens all the time in our tests?\n        while (!this.stack.isEmpty()) {\n          this.stack.pop();\n        }\n      }\n    }\n\n    enter(state) {\n      this.stack.push(state);\n    }\n\n    exit() {\n      (true && !(this.stack.size !== 0) && (0, _debug.assert)('BUG: unbalanced pop', this.stack.size !== 0));\n      this.stack.pop();\n    }\n\n    nodeFor(state) {\n      return (0, _util.expect)(this.nodes.get(state), 'BUG: missing node');\n    }\n\n    appendChild(node, state) {\n      (true && !(!this.refs.has(state)) && (0, _debug.assert)('BUG: child already appended', !this.refs.has(state)));\n      var parent = this.stack.current;\n      var ref = new Ref(state);\n      this.refs.set(state, ref);\n\n      if (parent) {\n        var parentNode = this.nodeFor(parent);\n        parentNode.refs.add(ref);\n        node.parent = parentNode;\n      } else {\n        this.roots.add(ref);\n      }\n    }\n\n    captureRefs(refs) {\n      var captured = [];\n      refs.forEach(ref => {\n        var state = ref.get();\n\n        if (state) {\n          captured.push(this.captureNode(`render-node:${ref.id}`, state));\n        } else {\n          refs.delete(ref);\n        }\n      });\n      return captured;\n    }\n\n    captureNode(id, state) {\n      var node = this.nodeFor(state);\n      var {\n        type,\n        name,\n        args,\n        instance,\n        refs\n      } = node;\n      var template = this.captureTemplate(node);\n      var bounds = this.captureBounds(node);\n      var children = this.captureRefs(refs);\n      return {\n        id,\n        type,\n        name,\n        args: args.value(),\n        instance,\n        template,\n        bounds,\n        children\n      };\n    }\n\n    captureTemplate({\n      template\n    }) {\n      return template && (0, _util.unwrapTemplate)(template).referrer.moduleName || null;\n    }\n\n    captureBounds(node) {\n      var bounds = (0, _util.expect)(node.bounds, 'BUG: missing bounds');\n      var parentElement = bounds.parentElement();\n      var firstNode = bounds.firstNode();\n      var lastNode = bounds.lastNode();\n      return {\n        parentElement,\n        firstNode,\n        lastNode\n      };\n    }\n\n  }\n  /**\n  @module ember\n  */\n\n  /**\n    The `{{#each}}` helper loops over elements in a collection. It is an extension\n    of the base Handlebars `{{#each}}` helper.\n  \n    The default behavior of `{{#each}}` is to yield its inner block once for every\n    item in an array passing the item as the first block parameter.\n  \n    Assuming the `@developers` argument contains this array:\n  \n    ```javascript\n    [{ name: 'Yehuda' },{ name: 'Tom' }, { name: 'Paul' }];\n    ```\n  \n    ```handlebars\n    <ul>\n      {{#each @developers as |person|}}\n        <li>Hello, {{person.name}}!</li>\n      {{/each}}\n    </ul>\n    ```\n  \n    The same rules apply to arrays of primitives.\n  \n    ```javascript\n    ['Yehuda', 'Tom', 'Paul']\n    ```\n  \n    ```handlebars\n    <ul>\n      {{#each @developerNames as |name|}}\n        <li>Hello, {{name}}!</li>\n      {{/each}}\n    </ul>\n    ```\n  \n    During iteration, the index of each item in the array is provided as a second block\n    parameter.\n  \n    ```handlebars\n    <ul>\n      {{#each @developers as |person index|}}\n        <li>Hello, {{person.name}}! You're number {{index}} in line</li>\n      {{/each}}\n    </ul>\n    ```\n  \n    ### Specifying Keys\n  \n    In order to improve rendering speed, Ember will try to reuse the DOM elements\n    where possible. Specifically, if the same item is present in the array both\n    before and after the change, its DOM output will be reused.\n  \n    The `key` option is used to tell Ember how to determine if the items in the\n    array being iterated over with `{{#each}}` has changed between renders. By\n    default the item's object identity is used.\n  \n    This is usually sufficient, so in most cases, the `key` option is simply not\n    needed. However, in some rare cases, the objects' identities may change even\n    though they represent the same underlying data.\n  \n    For example:\n  \n    ```javascript\n    people.map(person => {\n      return { ...person, type: 'developer' };\n    });\n    ```\n  \n    In this case, each time the `people` array is `map`-ed over, it will produce\n    an new array with completely different objects between renders. In these cases,\n    you can help Ember determine how these objects related to each other with the\n    `key` option:\n  \n    ```handlebars\n    <ul>\n      {{#each @developers key=\"name\" as |person|}}\n        <li>Hello, {{person.name}}!</li>\n      {{/each}}\n    </ul>\n    ```\n  \n    By doing so, Ember will use the value of the property specified (`person.name`\n    in the example) to find a \"match\" from the previous render. That is, if Ember\n    has previously seen an object from the `@developers` array with a matching\n    name, its DOM elements will be re-used.\n  \n    ### {{else}} condition\n  \n    `{{#each}}` can have a matching `{{else}}`. The contents of this block will render\n    if the collection is empty.\n  \n    ```handlebars\n    <ul>\n      {{#each @developers as |person|}}\n        <li>{{person.name}} is available!</li>\n      {{else}}\n        <li>Sorry, nobody is available for this task.</li>\n      {{/each}}\n    </ul>\n    ```\n  \n    @method each\n    @for Ember.Templates.helpers\n    @public\n   */\n\n  /**\n    The `{{each-in}}` helper loops over properties on an object.\n  \n    For example, given this component definition:\n  \n    ```app/components/developer-details.js\n    import Component from '@glimmer/component';\n    import { tracked } from '@glimmer/tracking';\n  \n    export default class extends Component {\n      @tracked developer = {\n        \"name\": \"Shelly Sails\",\n        \"age\": 42\n      };\n    }\n    ```\n  \n    This template would display all properties on the `developer`\n    object in a list:\n  \n    ```app/components/developer-details.hbs\n    <ul>\n      {{#each-in this.developer as |key value|}}\n        <li>{{key}}: {{value}}</li>\n      {{/each-in}}\n    </ul>\n    ```\n  \n    Outputting their name and age.\n  \n    @method each-in\n    @for Ember.Templates.helpers\n    @public\n    @since 2.1.0\n  */\n\n\n  class EachInReference {\n    constructor(inner) {\n      this.inner = inner;\n      this.valueTag = (0, _validator.createUpdatableTag)();\n      this.tag = (0, _validator.combine)([inner.tag, this.valueTag]);\n    }\n\n    value() {\n      var iterable = this.inner.value();\n      var tag = (0, _metal.tagForObject)(iterable);\n\n      if ((0, _utils.isProxy)(iterable)) {\n        // this is because the each-in doesn't actually get(proxy, 'key') but bypasses it\n        // and the proxy's tag is lazy updated on access\n        iterable = (0, _runtime._contentFor)(iterable);\n      }\n\n      (0, _validator.updateTag)(this.valueTag, tag);\n      return new EachInWrapper(iterable);\n    }\n\n    get(key) {\n      return this.inner.get(key);\n    }\n\n  }\n\n  class EachInWrapper {\n    constructor(inner) {\n      this.inner = inner;\n    }\n\n  }\n\n  function eachIn(args) {\n    return new EachInReference(args.positional.at(0));\n  }\n\n  function toIterator(iterable) {\n    if (iterable instanceof EachInWrapper) {\n      return toEachInIterator(iterable.inner);\n    } else {\n      return toEachIterator(iterable);\n    }\n  }\n\n  function toEachInIterator(iterable) {\n    if (!isIndexable(iterable)) {\n      return null;\n    }\n\n    if (Array.isArray(iterable) || (0, _utils.isEmberArray)(iterable)) {\n      return ObjectIterator.fromIndexable(iterable);\n    } else if (_utils.HAS_NATIVE_SYMBOL && isNativeIterable(iterable)) {\n      return MapLikeNativeIterator.from(iterable);\n    } else if (hasForEach(iterable)) {\n      return ObjectIterator.fromForEachable(iterable);\n    } else {\n      return ObjectIterator.fromIndexable(iterable);\n    }\n  }\n\n  function toEachIterator(iterable) {\n    if (!(0, _utils.isObject)(iterable)) {\n      return null;\n    }\n\n    if (Array.isArray(iterable)) {\n      return ArrayIterator.from(iterable);\n    } else if ((0, _utils.isEmberArray)(iterable)) {\n      return EmberArrayIterator.from(iterable);\n    } else if (_utils.HAS_NATIVE_SYMBOL && isNativeIterable(iterable)) {\n      return ArrayLikeNativeIterator.from(iterable);\n    } else if (hasForEach(iterable)) {\n      return ArrayIterator.fromForEachable(iterable);\n    } else {\n      return null;\n    }\n  }\n\n  class BoundedIterator {\n    constructor(length) {\n      this.length = length;\n      this.position = 0;\n    }\n\n    isEmpty() {\n      return false;\n    }\n\n    memoFor(position) {\n      return position;\n    }\n\n    next() {\n      var {\n        length,\n        position\n      } = this;\n\n      if (position >= length) {\n        return null;\n      }\n\n      var value = this.valueFor(position);\n      var memo = this.memoFor(position);\n      this.position++;\n      return {\n        value,\n        memo\n      };\n    }\n\n  }\n\n  class ArrayIterator extends BoundedIterator {\n    constructor(array) {\n      super(array.length);\n      this.array = array;\n    }\n\n    static from(iterable) {\n      return iterable.length > 0 ? new this(iterable) : null;\n    }\n\n    static fromForEachable(object) {\n      var array = [];\n      object.forEach(item => array.push(item));\n      return this.from(array);\n    }\n\n    valueFor(position) {\n      return this.array[position];\n    }\n\n  }\n\n  class EmberArrayIterator extends BoundedIterator {\n    constructor(array) {\n      super(array.length);\n      this.array = array;\n    }\n\n    static from(iterable) {\n      return iterable.length > 0 ? new this(iterable) : null;\n    }\n\n    valueFor(position) {\n      return (0, _metal.objectAt)(this.array, position);\n    }\n\n  }\n\n  class ObjectIterator extends BoundedIterator {\n    constructor(keys, values) {\n      super(values.length);\n      this.keys = keys;\n      this.values = values;\n    }\n\n    static fromIndexable(obj) {\n      var keys = Object.keys(obj);\n      var {\n        length\n      } = keys;\n\n      if (length === 0) {\n        return null;\n      } else {\n        var values = [];\n\n        for (var i = 0; i < length; i++) {\n          var value = void 0;\n          var key = keys[i];\n          value = obj[key]; // Add the tag of the returned value if it is an array, since arrays\n          // should always cause updates if they are consumed and then changed\n\n          if ((0, _validator.isTracking)()) {\n            (0, _validator.consumeTag)((0, _metal.tagForProperty)(obj, key));\n\n            if (Array.isArray(value) || (0, _utils.isEmberArray)(value)) {\n              (0, _validator.consumeTag)((0, _metal.tagForProperty)(value, '[]'));\n            }\n          }\n\n          values.push(value);\n        }\n\n        return new this(keys, values);\n      }\n    }\n\n    static fromForEachable(obj) {\n      var keys = [];\n      var values = [];\n      var length = 0;\n      var isMapLike = false; // Not using an arrow function here so we can get an accurate `arguments`\n\n      obj.forEach(function (value, key) {\n        isMapLike = isMapLike || arguments.length >= 2;\n\n        if (isMapLike) {\n          keys.push(key);\n        }\n\n        values.push(value);\n        length++;\n      });\n\n      if (length === 0) {\n        return null;\n      } else if (isMapLike) {\n        return new this(keys, values);\n      } else {\n        return new ArrayIterator(values);\n      }\n    }\n\n    valueFor(position) {\n      return this.values[position];\n    }\n\n    memoFor(position) {\n      return this.keys[position];\n    }\n\n  }\n\n  class NativeIterator {\n    constructor(iterable, result) {\n      this.iterable = iterable;\n      this.result = result;\n      this.position = 0;\n    }\n\n    static from(iterable) {\n      var iterator = iterable[Symbol.iterator]();\n      var result = iterator.next();\n      var {\n        done\n      } = result;\n\n      if (done) {\n        return null;\n      } else {\n        return new this(iterator, result);\n      }\n    }\n\n    isEmpty() {\n      return false;\n    }\n\n    next() {\n      var {\n        iterable,\n        result,\n        position\n      } = this;\n\n      if (result.done) {\n        return null;\n      }\n\n      var value = this.valueFor(result, position);\n      var memo = this.memoFor(result, position);\n      this.position++;\n      this.result = iterable.next();\n      return {\n        value,\n        memo\n      };\n    }\n\n  }\n\n  class ArrayLikeNativeIterator extends NativeIterator {\n    valueFor(result) {\n      return result.value;\n    }\n\n    memoFor(_result, position) {\n      return position;\n    }\n\n  }\n\n  class MapLikeNativeIterator extends NativeIterator {\n    valueFor(result) {\n      return result.value[1];\n    }\n\n    memoFor(result) {\n      return result.value[0];\n    }\n\n  }\n\n  function hasForEach(value) {\n    return typeof value['forEach'] === 'function';\n  }\n\n  function isNativeIterable(value) {\n    return typeof value[Symbol.iterator] === 'function';\n  }\n\n  function isIndexable(value) {\n    return value !== null && (typeof value === 'object' || typeof value === 'function');\n  }\n\n  function toBool(predicate) {\n    if ((0, _utils.isProxy)(predicate)) {\n      return Boolean((0, _metal.get)(predicate, 'isTruthy'));\n    } else if ((0, _runtime.isArray)(predicate)) {\n      return predicate.length !== 0;\n    } else {\n      return Boolean(predicate);\n    }\n  }\n\n  class EmberEnvironmentExtra {\n    constructor(owner) {\n      this.owner = owner;\n\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        this._debugRenderTree = new DebugRenderTree();\n      }\n    }\n\n    get debugRenderTree() {\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        return this._debugRenderTree;\n      } else {\n        throw new Error(\"Can't access debug render tree outside of the inspector (_DEBUG_RENDER_TREE flag is disabled)\");\n      }\n    }\n\n    begin() {\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        this.debugRenderTree.begin();\n      }\n    }\n\n    commit() {\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        this.debugRenderTree.commit();\n      }\n    }\n\n  }\n\n  class EmberEnvironmentDelegate {\n    constructor(owner, isInteractive) {\n      this.toBool = toBool;\n      this.toIterator = toIterator;\n      this.getPath = _metal.get;\n      this.setPath = _metal.set;\n      this.extra = new EmberEnvironmentExtra(owner);\n      this.isInteractive = isInteractive;\n      installProtocolForURL(this);\n    } // this gets clobbered by installPlatformSpecificProtocolForURL\n    // it really should just delegate to a platform specific injection\n\n\n    protocolForURL(s) {\n      return s;\n    }\n\n    getTemplatePathDebugContext(pathRef) {\n      var stack = this.extra.debugRenderTree.logRenderStackForPath(pathRef);\n      return `While rendering:\\n\\n${stack}`;\n    }\n\n    setTemplatePathDebugContext(pathRef, desc, parentRef) {\n      var type = 'root';\n\n      if (pathRef instanceof _reference.IterationItemReference) {\n        type = 'iterator';\n      } else if (pathRef instanceof _reference.PropertyReference) {\n        type = 'property';\n      }\n\n      this.extra.debugRenderTree.createPath(pathRef, desc, type, parentRef);\n    }\n\n    onTransactionBegin() {\n      this.extra.begin();\n    }\n\n    onTransactionCommit() {\n      this.extra.commit();\n    }\n\n  }\n\n  if (true\n  /* DEBUG */\n  ) {\n    class StyleAttributeManager extends _runtime2.SimpleDynamicAttribute {\n      set(dom, value, env) {\n        (true && (0, _debug.warn)((0, _views.constructStyleDeprecationMessage)(value), (() => {\n          if (value === null || value === undefined || isHTMLSafe(value)) {\n            return true;\n          }\n\n          return false;\n        })(), {\n          id: 'ember-htmlbars.style-xss-warning'\n        }));\n        super.set(dom, value, env);\n      }\n\n      update(value, env) {\n        (true && (0, _debug.warn)((0, _views.constructStyleDeprecationMessage)(value), (() => {\n          if (value === null || value === undefined || isHTMLSafe(value)) {\n            return true;\n          }\n\n          return false;\n        })(), {\n          id: 'ember-htmlbars.style-xss-warning'\n        }));\n        super.update(value, env);\n      }\n\n    }\n\n    EmberEnvironmentDelegate.prototype.attributeFor = function (element, attribute, isTrusting, namespace) {\n      if (attribute === 'style' && !isTrusting) {\n        return new StyleAttributeManager({\n          element,\n          name: attribute,\n          namespace\n        });\n      }\n\n      return (0, _runtime2.dynamicAttribute)(element, attribute, namespace);\n    };\n  }\n\n  var CAPABILITIES$1 = {\n    dynamicLayout: false,\n    dynamicTag: false,\n    prepareArgs: false,\n    createArgs: true,\n    attributeHook: false,\n    elementHook: false,\n    createCaller: false,\n    dynamicScope: true,\n    updateHook: true,\n    createInstance: true,\n    wrapped: false,\n    willDestroy: false\n  };\n\n  function capabilities(managerAPI, options = {}) {\n    (true && !(managerAPI === '3.4' || managerAPI === '3.13') && (0, _debug.assert)('Invalid component manager compatibility specified', managerAPI === '3.4' || managerAPI === '3.13'));\n    var updateHook = true;\n    {\n      updateHook = managerAPI === '3.13' ? Boolean(options.updateHook) : true;\n    }\n    return {\n      asyncLifeCycleCallbacks: Boolean(options.asyncLifecycleCallbacks),\n      destructor: Boolean(options.destructor),\n      updateHook\n    };\n  }\n\n  function hasAsyncLifeCycleCallbacks(delegate) {\n    return delegate.capabilities.asyncLifeCycleCallbacks;\n  }\n\n  function hasUpdateHook(delegate) {\n    return delegate.capabilities.updateHook;\n  }\n\n  function hasAsyncUpdateHook(delegate) {\n    return hasAsyncLifeCycleCallbacks(delegate) && hasUpdateHook(delegate);\n  }\n\n  function hasDestructors(delegate) {\n    return delegate.capabilities.destructor;\n  }\n  /**\n    The CustomComponentManager allows addons to provide custom component\n    implementations that integrate seamlessly into Ember. This is accomplished\n    through a delegate, registered with the custom component manager, which\n    implements a set of hooks that determine component behavior.\n  \n    To create a custom component manager, instantiate a new CustomComponentManager\n    class and pass the delegate as the first argument:\n  \n    ```js\n    let manager = new CustomComponentManager({\n      // ...delegate implementation...\n    });\n    ```\n  \n    ## Delegate Hooks\n  \n    Throughout the lifecycle of a component, the component manager will invoke\n    delegate hooks that are responsible for surfacing those lifecycle changes to\n    the end developer.\n  \n    * `create()` - invoked when a new instance of a component should be created\n    * `update()` - invoked when the arguments passed to a component change\n    * `getContext()` - returns the object that should be\n  */\n\n\n  class CustomComponentManager extends AbstractManager {\n    create(env, definition, args) {\n      var {\n        delegate\n      } = definition;\n      var capturedArgs = args.capture();\n      var namedArgs = capturedArgs.named;\n      var value;\n      var namedArgsProxy = {};\n      {\n        var getTag = key => {\n          return namedArgs.get(key).tag;\n        };\n\n        if (_utils.HAS_NATIVE_PROXY) {\n          var handler = {\n            get(_target, prop) {\n              if (namedArgs.has(prop)) {\n                var ref = namedArgs.get(prop);\n                (0, _validator.consumeTag)(ref.tag);\n                return ref.value();\n              } else if (prop === _metal.CUSTOM_TAG_FOR) {\n                return getTag;\n              }\n            },\n\n            has(_target, prop) {\n              return namedArgs.has(prop);\n            },\n\n            ownKeys(_target) {\n              return namedArgs.names;\n            },\n\n            getOwnPropertyDescriptor(_target, prop) {\n              (true && !(namedArgs.has(prop)) && (0, _debug.assert)('args proxies do not have real property descriptors, so you should never need to call getOwnPropertyDescriptor yourself. This code exists for enumerability, such as in for-in loops and Object.keys()', namedArgs.has(prop)));\n              return {\n                enumerable: true,\n                configurable: true\n              };\n            }\n\n          };\n\n          if (true\n          /* DEBUG */\n          ) {\n            handler.set = function (_target, prop) {\n              (true && !(false) && (0, _debug.assert)(`You attempted to set ${definition.ComponentClass.class}#${String(prop)} on a components arguments. Component arguments are immutable and cannot be updated directly, they always represent the values that are passed to your component. If you want to set default values, you should use a getter instead`));\n              return false;\n            };\n          }\n\n          namedArgsProxy = new Proxy(namedArgsProxy, handler);\n        } else {\n          Object.defineProperty(namedArgsProxy, _metal.CUSTOM_TAG_FOR, {\n            configurable: false,\n            enumerable: false,\n            value: getTag\n          });\n          namedArgs.names.forEach(name => {\n            Object.defineProperty(namedArgsProxy, name, {\n              enumerable: true,\n              configurable: true,\n\n              get() {\n                var ref = namedArgs.get(name);\n                (0, _validator.consumeTag)(ref.tag);\n                return ref.value();\n              }\n\n            });\n          });\n        }\n\n        value = {\n          named: namedArgsProxy,\n          positional: capturedArgs.positional.value()\n        };\n      }\n      var component = delegate.createComponent(definition.ComponentClass.class, value);\n      var bucket = new CustomComponentState(delegate, component, capturedArgs, env, namedArgsProxy);\n\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        env.extra.debugRenderTree.create(bucket, {\n          type: 'component',\n          name: definition.name,\n          args: args.capture(),\n          instance: component,\n          template: definition.template\n        });\n      }\n\n      return bucket;\n    }\n\n    update(bucket) {\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        bucket.env.extra.debugRenderTree.update(bucket);\n      }\n\n      var {\n        delegate,\n        component,\n        args,\n        namedArgsProxy\n      } = bucket;\n      var value;\n      {\n        value = {\n          named: namedArgsProxy,\n          positional: args.positional.value()\n        };\n      }\n\n      if (hasUpdateHook(delegate)) {\n        delegate.updateComponent(component, value);\n      }\n    }\n\n    didCreate({\n      delegate,\n      component\n    }) {\n      if (hasAsyncLifeCycleCallbacks(delegate)) {\n        delegate.didCreateComponent(component);\n      }\n    }\n\n    didUpdate({\n      delegate,\n      component\n    }) {\n      if (hasAsyncUpdateHook(delegate)) {\n        delegate.didUpdateComponent(component);\n      }\n    }\n\n    getContext({\n      delegate,\n      component\n    }) {\n      delegate.getContext(component);\n    }\n\n    getSelf({\n      env,\n      delegate,\n      component\n    }) {\n      return new _reference.ComponentRootReference(delegate.getContext(component), env);\n    }\n\n    getDestructor(state) {\n      var destructor = null;\n\n      if (hasDestructors(state.delegate)) {\n        destructor = state;\n      }\n\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        var inner = destructor;\n        destructor = {\n          destroy() {\n            state.env.extra.debugRenderTree.willDestroy(state);\n\n            if (inner) {\n              inner.destroy();\n            }\n          }\n\n        };\n      }\n\n      return destructor;\n    }\n\n    getCapabilities({\n      delegate\n    }) {\n      return (0, _polyfills.assign)({}, CAPABILITIES$1, {\n        updateHook: _environment2.ENV._DEBUG_RENDER_TREE || delegate.capabilities.updateHook\n      });\n    }\n\n    getTag({\n      args\n    }) {\n      if ((0, _validator.isConst)(args)) {\n        // returning a const tag skips the update hook (VM BUG?)\n        return (0, _validator.createTag)();\n      } else {\n        return args.tag;\n      }\n    }\n\n    didRenderLayout(bucket, bounds) {\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        bucket.env.extra.debugRenderTree.didRender(bucket, bounds);\n      }\n    }\n\n    didUpdateLayout(bucket, bounds) {\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        bucket.env.extra.debugRenderTree.didRender(bucket, bounds);\n      }\n    }\n\n    getJitStaticLayout(state) {\n      return (0, _util.unwrapTemplate)(state.template).asLayout();\n    }\n\n  }\n\n  var CUSTOM_COMPONENT_MANAGER = new CustomComponentManager();\n  /**\n   * Stores internal state about a component instance after it's been created.\n   */\n\n  class CustomComponentState {\n    constructor(delegate, component, args, env, namedArgsProxy) {\n      this.delegate = delegate;\n      this.component = component;\n      this.args = args;\n      this.env = env;\n      this.namedArgsProxy = namedArgsProxy;\n    }\n\n    destroy() {\n      var {\n        delegate,\n        component\n      } = this;\n\n      if (hasDestructors(delegate)) {\n        delegate.destroyComponent(component);\n      }\n    }\n\n  }\n\n  class CustomManagerDefinition {\n    constructor(name, ComponentClass, delegate, template) {\n      this.name = name;\n      this.ComponentClass = ComponentClass;\n      this.delegate = delegate;\n      this.template = template;\n      this.manager = CUSTOM_COMPONENT_MANAGER;\n      this.state = {\n        name,\n        ComponentClass,\n        template,\n        delegate\n      };\n    }\n\n  }\n\n  class InternalComponentDefinition {\n    constructor(manager, ComponentClass, layout) {\n      this.manager = manager;\n      this.state = {\n        ComponentClass,\n        layout\n      };\n    }\n\n  }\n\n  class InternalManager extends AbstractManager {\n    constructor(owner) {\n      super();\n      this.owner = owner;\n    }\n\n    getJitStaticLayout({\n      layout: template\n    }) {\n      return (0, _util.unwrapTemplate)(template).asLayout();\n    }\n\n  }\n\n  var CAPABILITIES$2 = {\n    dynamicLayout: false,\n    dynamicTag: false,\n    prepareArgs: false,\n    createArgs: _environment2.ENV._DEBUG_RENDER_TREE,\n    attributeHook: false,\n    elementHook: false,\n    createCaller: false,\n    dynamicScope: false,\n    updateHook: _environment2.ENV._DEBUG_RENDER_TREE,\n    createInstance: true,\n    wrapped: false,\n    willDestroy: false\n  };\n\n  class TemplateOnlyComponentManager extends AbstractManager {\n    getJitStaticLayout({\n      template\n    }) {\n      return (0, _util.unwrapTemplate)(template).asLayout();\n    }\n\n    getCapabilities() {\n      return CAPABILITIES$2;\n    }\n\n    create(environment, {\n      name,\n      template\n    }, args) {\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        var bucket = {\n          environment\n        };\n        environment.extra.debugRenderTree.create(bucket, {\n          type: 'component',\n          name: name,\n          args: args.capture(),\n          instance: null,\n          template\n        });\n        return bucket;\n      } else {\n        return null;\n      }\n    }\n\n    getSelf() {\n      return _runtime2.NULL_REFERENCE;\n    }\n\n    getTag() {\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        // returning a const tag skips the update hook (VM BUG?)\n        return (0, _validator.createTag)();\n      } else {\n        // an outlet has no hooks\n        return _validator.CONSTANT_TAG;\n      }\n    }\n\n    getDestructor(bucket) {\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        return {\n          destroy() {\n            bucket.environment.extra.debugRenderTree.willDestroy(bucket);\n          }\n\n        };\n      } else {\n        return null;\n      }\n    }\n\n    didRenderLayout(bucket, bounds) {\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        bucket.environment.extra.debugRenderTree.didRender(bucket, bounds);\n      }\n    }\n\n    update(bucket) {\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        bucket.environment.extra.debugRenderTree.update(bucket);\n      }\n    }\n\n    didUpdateLayout(bucket, bounds) {\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        bucket.environment.extra.debugRenderTree.didRender(bucket, bounds);\n      }\n    }\n\n  }\n\n  var MANAGER = new TemplateOnlyComponentManager();\n\n  class TemplateOnlyComponentDefinition {\n    constructor(name, template) {\n      this.name = name;\n      this.template = template;\n      this.manager = MANAGER;\n    }\n\n    get state() {\n      return this;\n    }\n\n  }\n\n  var helper$1;\n\n  if (true\n  /* DEBUG */\n  ) {\n    class ComponentAssertionReference {\n      constructor(component, message) {\n        this.component = component;\n        this.message = message;\n        this.tag = component.tag;\n      }\n\n      value() {\n        var value = this.component.value();\n        (true && !(typeof value !== 'string') && (0, _debug.assert)(this.message, typeof value !== 'string'));\n        return value;\n      }\n\n      get(property) {\n        return this.component.get(property);\n      }\n\n    }\n\n    helper$1 = args => new ComponentAssertionReference(args.positional.at(0), args.positional.at(1).value());\n  } else {\n    helper$1 = args => args.positional.at(0);\n  }\n\n  var componentAssertionHelper = helper$1;\n\n  function inputTypeHelper({\n    positional\n  }) {\n    var type = positional.at(0).value();\n\n    if (type === 'checkbox') {\n      return '-checkbox';\n    }\n\n    return '-text-field';\n  }\n\n  function inputTypeHelper$1(args, vm) {\n    return new _reference.HelperRootReference(inputTypeHelper, args.capture(), vm.env);\n  }\n\n  function normalizeClass({\n    positional\n  }) {\n    var classNameParts = positional.at(0).value().split('.');\n    var className = classNameParts[classNameParts.length - 1];\n    var value = positional.at(1).value();\n\n    if (value === true) {\n      return (0, _string.dasherize)(className);\n    } else if (!value && value !== 0) {\n      return '';\n    } else {\n      return String(value);\n    }\n  }\n\n  function normalizeClassHelper(args, vm) {\n    return new _reference.HelperRootReference(normalizeClass, args.capture(), vm.env);\n  }\n  /**\n  @module ember\n  */\n\n  /**\n    This reference is used to get the `[]` tag of iterables, so we can trigger\n    updates to `{{each}}` when it changes. It is put into place by a template\n    transform at build time, similar to the (-each-in) helper\n  */\n\n\n  class TrackArrayReference {\n    constructor(inner) {\n      this.inner = inner;\n      this.valueTag = (0, _validator.createUpdatableTag)();\n      this.tag = (0, _validator.combine)([inner.tag, this.valueTag]);\n    }\n\n    value() {\n      var iterable = this.inner.value();\n      var tag = (0, _metal.tagForProperty)(iterable, '[]');\n      (0, _validator.updateTag)(this.valueTag, tag);\n      return iterable;\n    }\n\n    get(key) {\n      return this.inner.get(key);\n    }\n\n  }\n\n  function trackArray(args) {\n    return new TrackArrayReference(args.positional.at(0));\n  }\n  /**\n  @module ember\n  */\n\n  /**\n     Use the `{{array}}` helper to create an array to pass as an option to your\n     components.\n  \n     ```handlebars\n     <MyComponent @people={{array\n       'Tom Dade'\n       'Yehuda Katz'\n       this.myOtherPerson}}\n     />\n     ```\n      or\n     ```handlebars\n     {{my-component people=(array\n       'Tom Dade'\n       'Yehuda Katz'\n       this.myOtherPerson)\n     }}\n     ```\n  \n     Would result in an object such as:\n  \n     ```js\n     ['Tom Date', 'Yehuda Katz', this.get('myOtherPerson')]\n     ```\n  \n     Where the 3rd item in the array is bound to updates of the `myOtherPerson` property.\n  \n     @method array\n     @for Ember.Templates.helpers\n     @param {Array} options\n     @return {Array} Array\n     @since 3.8.0\n     @public\n   */\n\n\n  function array(args) {\n    return args.positional.capture();\n  }\n\n  var isEmpty = value => {\n    return value === null || value === undefined || typeof value.toString !== 'function';\n  };\n\n  var normalizeTextValue = value => {\n    if (isEmpty(value)) {\n      return '';\n    }\n\n    return String(value);\n  };\n  /**\n  @module ember\n  */\n\n  /**\n    Concatenates the given arguments into a string.\n  \n    Example:\n  \n    ```handlebars\n    {{some-component name=(concat firstName \" \" lastName)}}\n  \n    {{! would pass name=\"<first name value> <last name value>\" to the component}}\n    ```\n  \n    or for angle bracket invocation, you actually don't need concat at all.\n  \n    ```handlebars\n    <SomeComponent @name=\"{{firstName}} {{lastName}}\" />\n    ```\n  \n    @public\n    @method concat\n    @for Ember.Templates.helpers\n    @since 1.13.0\n  */\n\n\n  function concat({\n    positional\n  }) {\n    return positional.value().map(normalizeTextValue).join('');\n  }\n\n  function concat$1(args, vm) {\n    return new _reference.HelperRootReference(concat, args.capture(), vm.env);\n  }\n\n  function buildUntouchableThis(source) {\n    var context = null;\n\n    if (true\n    /* DEBUG */\n    && _utils.HAS_NATIVE_PROXY) {\n      var assertOnProperty = property => {\n        (true && !(false) && (0, _debug.assert)(`You accessed \\`this.${String(property)}\\` from a function passed to the ${source}, but the function itself was not bound to a valid \\`this\\` context. Consider updating to usage of \\`@action\\`.`));\n      };\n\n      context = new Proxy({}, {\n        get(_target, property) {\n          assertOnProperty(property);\n        },\n\n        set(_target, property) {\n          assertOnProperty(property);\n          return false;\n        },\n\n        has(_target, property) {\n          assertOnProperty(property);\n          return false;\n        }\n\n      });\n    }\n\n    return context;\n  }\n\n  var context = buildUntouchableThis('`fn` helper');\n  /**\n  @module ember\n  */\n\n  /**\n    The `fn` helper allows you to ensure a function that you are passing off\n    to another component, helper, or modifier has access to arguments that are\n    available in the template.\n  \n    For example, if you have an `each` helper looping over a number of items, you\n    may need to pass a function that expects to receive the item as an argument\n    to a component invoked within the loop. Here's how you could use the `fn`\n    helper to pass both the function and its arguments together:\n  \n      ```app/templates/components/items-listing.hbs\n    {{#each @items as |item|}}\n      <DisplayItem @item=item @select={{fn this.handleSelected item}} />\n    {{/each}}\n    ```\n  \n    ```app/components/items-list.js\n    import Component from '@glimmer/component';\n    import { action } from '@ember/object';\n  \n    export default class ItemsList extends Component {\n      @action\n      handleSelected(item) {\n        // ...snip...\n      }\n    }\n    ```\n  \n    In this case the `display-item` component will receive a normal function\n    that it can invoke. When it invokes the function, the `handleSelected`\n    function will receive the `item` and any arguments passed, thanks to the\n    `fn` helper.\n  \n    Let's take look at what that means in a couple circumstances:\n  \n    - When invoked as `this.args.select()` the `handleSelected` function will\n      receive the `item` from the loop as its first and only argument.\n    - When invoked as `this.args.select('foo')` the `handleSelected` function\n      will receive the `item` from the loop as its first argument and the\n      string `'foo'` as its second argument.\n  \n    In the example above, we used `@action` to ensure that `handleSelected` is\n    properly bound to the `items-list`, but let's explore what happens if we\n    left out `@action`:\n  \n    ```app/components/items-list.js\n    import Component from '@glimmer/component';\n  \n    export default class ItemsList extends Component {\n      handleSelected(item) {\n        // ...snip...\n      }\n    }\n    ```\n  \n    In this example, when `handleSelected` is invoked inside the `display-item`\n    component, it will **not** have access to the component instance. In other\n    words, it will have no `this` context, so please make sure your functions\n    are bound (via `@action` or other means) before passing into `fn`!\n  \n    See also [partial application](https://en.wikipedia.org/wiki/Partial_application).\n  \n    @method fn\n    @for Ember.Templates.helpers\n    @public\n    @since 3.11.0\n  */\n\n  function fn({\n    positional\n  }) {\n    var callbackRef = positional.at(0);\n\n    if (true\n    /* DEBUG */\n    && typeof callbackRef[INVOKE] !== 'function') {\n      var callback = callbackRef.value();\n      (true && !(typeof callback === 'function') && (0, _debug.assert)(`You must pass a function as the \\`fn\\` helpers first argument, you passed ${callback}`, typeof callback === 'function'));\n    }\n\n    return (...invocationArgs) => {\n      var [fn, ...args] = positional.value();\n\n      if (typeof callbackRef[INVOKE] === 'function') {\n        // references with the INVOKE symbol expect the function behind\n        // the symbol to be bound to the reference\n        return callbackRef[INVOKE](...args, ...invocationArgs);\n      } else {\n        return fn.call(context, ...args, ...invocationArgs);\n      }\n    };\n  }\n\n  function fn$1(args, vm) {\n    return new _reference.HelperRootReference(fn, args.capture(), vm.env);\n  }\n  /**\n  @module ember\n  */\n\n  /**\n    Dynamically look up a property on an object. The second argument to `{{get}}`\n    should have a string value, although it can be bound.\n  \n    For example, these two usages are equivalent:\n  \n    ```app/components/developer-detail.js\n    import Component from '@glimmer/component';\n    import { tracked } from '@glimmer/tracking';\n  \n    export default class extends Component {\n      @tracked developer = {\n        name: \"Sandi Metz\",\n        language: \"Ruby\"\n      }\n    }\n    ```\n  \n    ```handlebars\n    {{this.developer.name}}\n    {{get this.developer \"name\"}}\n    ```\n  \n    If there were several facts about a person, the `{{get}}` helper can dynamically\n    pick one:\n  \n    ```app/templates/application.hbs\n    <DeveloperDetail @factName=\"language\" />\n    ```\n  \n    ```handlebars\n    {{get this.developer @factName}}\n    ```\n  \n    For a more complex example, this template would allow the user to switch\n    between showing the user's height and weight with a click:\n  \n    ```app/components/developer-detail.js\n    import Component from '@glimmer/component';\n    import { tracked } from '@glimmer/tracking';\n  \n    export default class extends Component {\n      @tracked developer = {\n        name: \"Sandi Metz\",\n        language: \"Ruby\"\n      }\n  \n      @tracked currentFact = 'name'\n  \n      @action\n      showFact(fact) {\n        this.currentFact = fact;\n      }\n    }\n    ```\n  \n    ```app/components/developer-detail.js\n    {{get this.developer this.currentFact}}\n  \n    <button {{on 'click' (fn this.showFact \"name\")}}>Show name</button>\n    <button {{on 'click' (fn this.showFact \"language\")}}>Show language</button>\n    ```\n  \n    The `{{get}}` helper can also respect mutable values itself. For example:\n  \n    ```app/components/developer-detail.js\n    <Input @value={{mut (get this.person this.currentFact)}} />\n  \n    <button {{on 'click' (fn this.showFact \"name\")}}>Show name</button>\n    <button {{on 'click' (fn this.showFact \"language\")}}>Show language</button>\n    ```\n  \n    Would allow the user to swap what fact is being displayed, and also edit\n    that fact via a two-way mutable binding.\n  \n    @public\n    @method get\n    @for Ember.Templates.helpers\n    @since 2.1.0\n   */\n\n\n  function get$1(args, vm) {\n    var sourceReference = args.positional.at(0);\n    var pathReference = args.positional.at(1);\n\n    if ((0, _validator.isConst)(pathReference)) {\n      // Since the path is constant, we can create a normal chain of property\n      // references. The source reference will update like normal, and all of the\n      // child references will update accordingly.\n      var path = pathReference.value();\n\n      if (path === undefined || path === null || path === '') {\n        return _runtime2.NULL_REFERENCE;\n      } else if (typeof path === 'string' && path.indexOf('.') > -1) {\n        return referenceFromParts(sourceReference, path.split('.'));\n      } else {\n        return sourceReference.get(String(path));\n      }\n    } else {\n      return new GetHelperRootReference(args.capture(), vm.env);\n    }\n  }\n\n  function get$2({\n    positional\n  }) {\n    var source = positional.at(0).value();\n\n    if ((0, _utils.isObject)(source)) {\n      var path = positional.at(1).value();\n      return (0, _metal.get)(source, String(path));\n    }\n  }\n\n  class GetHelperRootReference extends _reference.HelperRootReference {\n    constructor(args, env) {\n      super(get$2, args, env);\n      this.sourceReference = args.positional.at(0);\n      this.pathReference = args.positional.at(1);\n    }\n\n    [_reference.UPDATE_REFERENCED_VALUE](value) {\n      var source = this.sourceReference.value();\n\n      if ((0, _utils.isObject)(source)) {\n        var path = String(this.pathReference.value());\n        (0, _metal.set)(source, path, value);\n      }\n    }\n\n  }\n  /**\n  @module ember\n  */\n\n  /**\n     Use the `{{hash}}` helper to create a hash to pass as an option to your\n     components. This is specially useful for contextual components where you can\n     just yield a hash:\n  \n     ```handlebars\n     {{yield (hash\n        name='Sarah'\n        title=office\n     )}}\n     ```\n  \n     Would result in an object such as:\n  \n     ```js\n     { name: 'Sarah', title: this.get('office') }\n     ```\n  \n     Where the `title` is bound to updates of the `office` property.\n  \n     Note that the hash is an empty object with no prototype chain, therefore\n     common methods like `toString` are not available in the resulting hash.\n     If you need to use such a method, you can use the `call` or `apply`\n     approach:\n  \n     ```js\n     function toString(obj) {\n       return Object.prototype.toString.apply(obj);\n     }\n     ```\n  \n     @method hash\n     @for Ember.Templates.helpers\n     @param {Object} options\n     @return {Object} Hash\n     @since 2.3.0\n     @public\n   */\n\n\n  function hash(args) {\n    return args.named.capture();\n  }\n  /**\n  @module ember\n  */\n\n\n  function ifHelper({\n    positional\n  }) {\n    (true && !(positional.length === 3 || positional.length === 2) && (0, _debug.assert)('The inline form of the `if` helper expects two or three arguments, e.g. `{{if trialExpired \"Expired\" expiryDate}}`.', positional.length === 3 || positional.length === 2));\n    var condition = positional.at(0);\n    var truthyValue = positional.at(1);\n    var falsyValue = positional.at(2);\n\n    if (toBool(condition.value()) === true) {\n      return truthyValue.value();\n    } else {\n      return falsyValue !== undefined ? falsyValue.value() : undefined;\n    }\n  }\n\n  function unless({\n    positional\n  }) {\n    (true && !(positional.length === 3 || positional.length === 2) && (0, _debug.assert)('The inline form of the `unless` helper expects two or three arguments, e.g. `{{unless isFirstLogin \"Welcome back!\"}}`.', positional.length === 3 || positional.length === 2));\n    var condition = positional.at(0);\n    var truthyValue = positional.at(2);\n    var falsyValue = positional.at(1);\n\n    if (toBool(condition.value()) === true) {\n      return truthyValue !== undefined ? truthyValue.value() : undefined;\n    } else {\n      return falsyValue.value();\n    }\n  }\n  /**\n    The `if` helper allows you to conditionally render one of two branches,\n    depending on the \"truthiness\" of a property.\n    For example the following values are all falsey: `false`, `undefined`, `null`, `\"\"`, `0`, `NaN` or an empty array.\n  \n    This helper has two forms, block and inline.\n  \n    ## Block form\n  \n    You can use the block form of `if` to conditionally render a section of the template.\n  \n    To use it, pass the conditional value to the `if` helper,\n    using the block form to wrap the section of template you want to conditionally render.\n    Like so:\n  \n    ```app/templates/application.hbs\n    <Weather />\n    ```\n  \n    ```app/components/weather.hbs\n    {{! will not render because greeting is undefined}}\n    {{#if @isRaining}}\n      Yes, grab an umbrella!\n    {{/if}}\n    ```\n  \n    You can also define what to show if the property is falsey by using\n    the `else` helper.\n  \n    ```app/components/weather.hbs\n    {{#if @isRaining}}\n      Yes, grab an umbrella!\n    {{else}}\n      No, it's lovely outside!\n    {{/if}}\n    ```\n  \n    You are also able to combine `else` and `if` helpers to create more complex\n    conditional logic.\n  \n    For the following template:\n  \n     ```app/components/weather.hbs\n    {{#if @isRaining}}\n      Yes, grab an umbrella!\n    {{else if @isCold}}\n      Grab a coat, it's chilly!\n    {{else}}\n      No, it's lovely outside!\n    {{/if}}\n    ```\n  \n    If you call it by saying `isCold` is true:\n  \n    ```app/templates/application.hbs\n    <Weather @isCold={{true}} />\n    ```\n  \n    Then `Grab a coat, it's chilly!` will be rendered.\n  \n    ## Inline form\n  \n    The inline `if` helper conditionally renders a single property or string.\n  \n    In this form, the `if` helper receives three arguments, the conditional value,\n    the value to render when truthy, and the value to render when falsey.\n  \n    For example, if `useLongGreeting` is truthy, the following:\n  \n    ```app/templates/application.hbs\n    <Greeting @useLongGreeting={{true}} />\n    ```\n  \n    ```app/components/greeting.hbs\n    {{if @useLongGreeting \"Hello\" \"Hi\"}} Alex\n    ```\n  \n    Will render:\n  \n    ```html\n    Hello Alex\n    ```\n  \n    One detail to keep in mind is that both branches of the `if` helper will be evaluated,\n    so if you have `{{if condition \"foo\" (expensive-operation \"bar\")`,\n    `expensive-operation` will always calculate.\n  \n    @method if\n    @for Ember.Templates.helpers\n    @public\n  */\n\n\n  function inlineIf(args, vm) {\n    return new _reference.HelperRootReference(ifHelper, args.capture(), vm.env);\n  }\n  /**\n    The `unless` helper is the inverse of the `if` helper. It displays if a value\n    is falsey (\"not true\" or \"is false\"). Example values that will display with\n    `unless`: `false`, `undefined`, `null`, `\"\"`, `0`, `NaN` or an empty array.\n  \n    ## Inline form\n  \n    The inline `unless` helper conditionally renders a single property or string.\n    This helper acts like a ternary operator. If the first property is falsy,\n    the second argument will be displayed, otherwise, the third argument will be\n    displayed\n  \n    For example, if you pass a falsey `useLongGreeting` to the `Greeting` component:\n  \n    ```app/templates/application.hbs\n    <Greeting @useLongGreeting={{false}} />\n    ```\n  \n    ```app/components/greeting.hbs\n    {{unless @useLongGreeting \"Hi\" \"Hello\"}} Ben\n    ```\n  \n    Then it will display:\n  \n    ```html\n    Hi Ben\n    ```\n  \n    ## Block form\n  \n    Like the `if` helper, the `unless` helper also has a block form.\n  \n    The following will not render anything:\n  \n    ```app/templates/application.hbs\n    <Greeting />\n    ```\n  \n    ```app/components/greeting.hbs\n    {{#unless @greeting}}\n      No greeting was found. Why not set one?\n    {{/unless}}\n    ```\n  \n    You can also use an `else` helper with the `unless` block. The\n    `else` will display if the value is truthy.\n  \n    If you have the following component:\n  \n    ```app/components/logged-in.hbs\n    {{#unless @userData}}\n      Please login.\n    {{else}}\n      Welcome back!\n    {{/unless}}\n    ```\n  \n    Calling it with a truthy `userData`:\n  \n    ```app/templates/application.hbs\n    <LoggedIn @userData={{hash username=\"Zoey\"}} />\n    ```\n  \n    Will render:\n  \n    ```html\n    Welcome back!\n    ```\n  \n    and calling it with a falsey `userData`:\n  \n    ```app/templates/application.hbs\n    <LoggedIn @userData={{false}} />\n    ```\n  \n    Will render:\n  \n    ```html\n    Please login.\n    ```\n  \n    @method unless\n    @for Ember.Templates.helpers\n    @public\n  */\n\n\n  function inlineUnless(args, vm) {\n    return new _reference.HelperRootReference(unless, args.capture(), vm.env);\n  }\n  /**\n  @module ember\n  */\n\n  /**\n    `log` allows you to output the value of variables in the current rendering\n    context. `log` also accepts primitive types such as strings or numbers.\n  \n    ```handlebars\n    {{log \"myVariable:\" myVariable }}\n    ```\n  \n    @method log\n    @for Ember.Templates.helpers\n    @param {Array} params\n    @public\n  */\n\n\n  function log({\n    positional\n  }) {\n    /* eslint-disable no-console */\n    console.log(...positional.value());\n    /* eslint-enable no-console */\n  }\n\n  function log$1(args, vm) {\n    return new _reference.HelperRootReference(log, args.capture(), vm.env);\n  }\n  /**\n  @module ember\n  */\n\n  /**\n    This is a helper to be used in conjunction with the link-to helper.\n    It will supply url query parameters to the target route.\n  \n    @example In this example we are setting the `direction` query param to the value `\"asc\"`\n  \n    ```app/templates/application.hbs\n    <LinkTo\n      @route=\"posts\"\n      {{query-params direction=\"asc\"}}\n    >\n      Sort\n    </LinkTo>\n    ```\n  \n    @method query-params\n    @for Ember.Templates.helpers\n    @param {Object} hash takes a hash of query parameters\n    @return {Object} A `QueryParams` object for `{{link-to}}`\n    @public\n  */\n\n\n  function queryParams({\n    positional,\n    named\n  }) {\n    // tslint:disable-next-line:max-line-length\n    (true && !(positional.value().length === 0) && (0, _debug.assert)(\"The `query-params` helper only accepts hash parameters, e.g. (query-params queryParamPropertyName='foo') as opposed to just (query-params 'foo')\", positional.value().length === 0));\n    return new _routing.QueryParams((0, _polyfills.assign)({}, named.value()));\n  }\n\n  function queryParams$1(args, vm) {\n    return new _reference.HelperRootReference(queryParams, args.capture(), vm.env);\n  }\n  /**\n    The `readonly` helper let's you specify that a binding is one-way only,\n    instead of two-way.\n    When you pass a `readonly` binding from an outer context (e.g. parent component),\n    to to an inner context (e.g. child component), you are saying that changing that\n    property in the inner context does not change the value in the outer context.\n  \n    To specify that a binding is read-only, when invoking the child `Component`:\n  \n    ```app/components/my-parent.js\n    export default Component.extend({\n      totalClicks: 3\n    });\n    ```\n  \n    ```app/templates/components/my-parent.hbs\n    {{log totalClicks}} // -> 3\n    <MyChild @childClickCount={{readonly totalClicks}} />\n    ```\n    ```\n    {{my-child childClickCount=(readonly totalClicks)}}\n    ```\n  \n    Now, when you update `childClickCount`:\n  \n    ```app/components/my-child.js\n    export default Component.extend({\n      click() {\n        this.incrementProperty('childClickCount');\n      }\n    });\n    ```\n  \n    The value updates in the child component, but not the parent component:\n  \n    ```app/templates/components/my-child.hbs\n    {{log childClickCount}} //-> 4\n    ```\n  \n    ```app/templates/components/my-parent.hbs\n    {{log totalClicks}} //-> 3\n    <MyChild @childClickCount={{readonly totalClicks}} />\n    ```\n    or\n    ```app/templates/components/my-parent.hbs\n    {{log totalClicks}} //-> 3\n    {{my-child childClickCount=(readonly totalClicks)}}\n    ```\n  \n    ### Objects and Arrays\n  \n    When passing a property that is a complex object (e.g. object, array) instead of a primitive object (e.g. number, string),\n    only the reference to the object is protected using the readonly helper.\n    This means that you can change properties of the object both on the parent component, as well as the child component.\n    The `readonly` binding behaves similar to the `const` keyword in JavaScript.\n  \n    Let's look at an example:\n  \n    First let's set up the parent component:\n  \n    ```app/components/my-parent.js\n    import Component from '@ember/component';\n  \n    export default Component.extend({\n      clicks: null,\n  \n      init() {\n        this._super(...arguments);\n        this.set('clicks', { total: 3 });\n      }\n    });\n    ```\n  \n    ```app/templates/components/my-parent.hbs\n    {{log clicks.total}} //-> 3\n    <MyChild @childClicks={{readonly clicks}} />\n    ```\n    ```app/templates/components/my-parent.hbs\n    {{log clicks.total}} //-> 3\n    {{my-child childClicks=(readonly clicks)}}\n    ```\n  \n    Now, if you update the `total` property of `childClicks`:\n  \n    ```app/components/my-child.js\n    import Component from '@ember/component';\n  \n    export default Component.extend({\n      click() {\n        this.get('clicks').incrementProperty('total');\n      }\n    });\n    ```\n  \n    You will see the following happen:\n  \n    ```app/templates/components/my-parent.hbs\n    {{log clicks.total}} //-> 4\n    <MyChild @childClicks={{readonly clicks}} />\n    ```\n    or\n    ```app/templates/components/my-parent.hbs\n    {{log clicks.total}} //-> 4\n    {{my-child childClicks=(readonly clicks)}}\n    ```\n  \n    ```app/templates/components/my-child.hbs\n    {{log childClicks.total}} //-> 4\n    ```\n  \n    @method readonly\n    @param {Object} [attr] the read-only attribute.\n    @for Ember.Templates.helpers\n    @private\n  */\n\n\n  class ReadonlyReference extends _reference.RootReference {\n    constructor(inner, env) {\n      super(env);\n      this.inner = inner;\n      this.tag = inner.tag;\n    }\n\n    get [INVOKE]() {\n      return this.inner[INVOKE];\n    }\n\n    value() {\n      return this.inner.value();\n    }\n\n    get(key) {\n      return this.inner.get(key);\n    }\n\n  }\n\n  function readonly(args, vm) {\n    var ref = unMut(args.positional.at(0));\n    return new ReadonlyReference(ref, vm.env);\n  }\n  /**\n  @module ember\n  */\n\n  /**\n    The `{{unbound}}` helper disconnects the one-way binding of a property,\n    essentially freezing its value at the moment of rendering. For example,\n    in this example the display of the variable `name` will not change even\n    if it is set with a new value:\n  \n    ```handlebars\n    {{unbound this.name}}\n    ```\n  \n    Like any helper, the `unbound` helper can accept a nested helper expression.\n    This allows for custom helpers to be rendered unbound:\n  \n    ```handlebars\n    {{unbound (some-custom-helper)}}\n    {{unbound (capitalize this.name)}}\n    {{! You can use any helper, including unbound, in a nested expression }}\n    {{capitalize (unbound this.name)}}\n    ```\n  \n    The `unbound` helper only accepts a single argument, and it return an\n    unbound value.\n  \n    @method unbound\n    @for Ember.Templates.helpers\n    @public\n  */\n\n\n  function unbound(args, vm) {\n    (true && !(args.positional.length === 1 && args.named.length === 0) && (0, _debug.assert)('unbound helper cannot be called with multiple params or hash params', args.positional.length === 1 && args.named.length === 0));\n    return new UnboundRootReference(args.positional.at(0).value(), vm.env);\n  }\n\n  var MODIFIERS = ['alt', 'shift', 'meta', 'ctrl'];\n  var POINTER_EVENT_TYPE_REGEX = /^click|mouse|touch/;\n\n  function isAllowedEvent(event, allowedKeys) {\n    if (allowedKeys === null || allowedKeys === undefined) {\n      if (POINTER_EVENT_TYPE_REGEX.test(event.type)) {\n        return (0, _views.isSimpleClick)(event);\n      } else {\n        allowedKeys = '';\n      }\n    }\n\n    if (allowedKeys.indexOf('any') >= 0) {\n      return true;\n    }\n\n    for (var i = 0; i < MODIFIERS.length; i++) {\n      if (event[MODIFIERS[i] + 'Key'] && allowedKeys.indexOf(MODIFIERS[i]) === -1) {\n        return false;\n      }\n    }\n\n    return true;\n  }\n\n  var ActionHelper = {\n    // registeredActions is re-exported for compatibility with older plugins\n    // that were using this undocumented API.\n    registeredActions: _views.ActionManager.registeredActions,\n\n    registerAction(actionState) {\n      var {\n        actionId\n      } = actionState;\n      _views.ActionManager.registeredActions[actionId] = actionState;\n      return actionId;\n    },\n\n    unregisterAction(actionState) {\n      var {\n        actionId\n      } = actionState;\n      delete _views.ActionManager.registeredActions[actionId];\n    }\n\n  };\n\n  class ActionState {\n    constructor(element, actionId, actionName, actionArgs, namedArgs, positionalArgs, implicitTarget, dom, tag) {\n      this.element = element;\n      this.actionId = actionId;\n      this.actionName = actionName;\n      this.actionArgs = actionArgs;\n      this.namedArgs = namedArgs;\n      this.positional = positionalArgs;\n      this.implicitTarget = implicitTarget;\n      this.dom = dom;\n      this.eventName = this.getEventName();\n      this.tag = tag;\n    }\n\n    getEventName() {\n      return this.namedArgs.get('on').value() || 'click';\n    }\n\n    getActionArgs() {\n      var result = new Array(this.actionArgs.length);\n\n      for (var i = 0; i < this.actionArgs.length; i++) {\n        result[i] = this.actionArgs[i].value();\n      }\n\n      return result;\n    }\n\n    getTarget() {\n      var {\n        implicitTarget,\n        namedArgs\n      } = this;\n      var target;\n\n      if (namedArgs.has('target')) {\n        target = namedArgs.get('target').value();\n      } else {\n        target = implicitTarget.value();\n      }\n\n      return target;\n    }\n\n    handler(event) {\n      var {\n        actionName,\n        namedArgs\n      } = this;\n      var bubbles = namedArgs.get('bubbles');\n      var preventDefault = namedArgs.get('preventDefault');\n      var allowedKeys = namedArgs.get('allowedKeys');\n      var target = this.getTarget();\n      var shouldBubble = bubbles.value() !== false;\n\n      if (!isAllowedEvent(event, allowedKeys.value())) {\n        return true;\n      }\n\n      if (preventDefault.value() !== false) {\n        event.preventDefault();\n      }\n\n      if (!shouldBubble) {\n        event.stopPropagation();\n      }\n\n      (0, _runloop.join)(() => {\n        var args = this.getActionArgs();\n        var payload = {\n          args,\n          target,\n          name: null\n        };\n\n        if (typeof actionName[INVOKE] === 'function') {\n          (0, _instrumentation.flaggedInstrument)('interaction.ember-action', payload, () => {\n            actionName[INVOKE].apply(actionName, args);\n          });\n          return;\n        }\n\n        if (typeof actionName === 'function') {\n          (0, _instrumentation.flaggedInstrument)('interaction.ember-action', payload, () => {\n            actionName.apply(target, args);\n          });\n          return;\n        }\n\n        payload.name = actionName;\n\n        if (target.send) {\n          (0, _instrumentation.flaggedInstrument)('interaction.ember-action', payload, () => {\n            target.send.apply(target, [actionName, ...args]);\n          });\n        } else {\n          (true && !(typeof target[actionName] === 'function') && (0, _debug.assert)(`The action '${actionName}' did not exist on ${target}`, typeof target[actionName] === 'function'));\n          (0, _instrumentation.flaggedInstrument)('interaction.ember-action', payload, () => {\n            target[actionName].apply(target, args);\n          });\n        }\n      });\n      return shouldBubble;\n    }\n\n    destroy() {\n      ActionHelper.unregisterAction(this);\n    }\n\n  } // implements ModifierManager<Action>\n\n\n  class ActionModifierManager {\n    create(element, _state, args, _dynamicScope, dom) {\n      var {\n        named,\n        positional,\n        tag\n      } = args.capture();\n      var implicitTarget;\n      var actionName;\n      var actionNameRef;\n\n      if (positional.length > 1) {\n        implicitTarget = positional.at(0);\n        actionNameRef = positional.at(1);\n\n        if (actionNameRef[INVOKE]) {\n          actionName = actionNameRef;\n        } else {\n          var actionLabel = actionNameRef.propertyKey;\n          actionName = actionNameRef.value();\n          (true && !(typeof actionName === 'string' || typeof actionName === 'function') && (0, _debug.assert)('You specified a quoteless path, `' + actionLabel + '`, to the ' + '{{action}} helper which did not resolve to an action name (a ' + 'string). Perhaps you meant to use a quoted actionName? (e.g. ' + '{{action \"' + actionLabel + '\"}}).', typeof actionName === 'string' || typeof actionName === 'function'));\n        }\n      }\n\n      var actionArgs = []; // The first two arguments are (1) `this` and (2) the action name.\n      // Everything else is a param.\n\n      for (var i = 2; i < positional.length; i++) {\n        actionArgs.push(positional.at(i));\n      }\n\n      var actionId = (0, _utils.uuid)();\n      var actionState = new ActionState(element, actionId, actionName, actionArgs, named, positional, implicitTarget, dom, tag);\n      (true && !(actionState.eventName !== 'mouseEnter' && actionState.eventName !== 'mouseLeave' && actionState.eventName !== 'mouseMove') && (0, _debug.deprecate)(`Using the \\`{{action}}\\` modifier with \\`${actionState.eventName}\\` events has been deprecated.`, actionState.eventName !== 'mouseEnter' && actionState.eventName !== 'mouseLeave' && actionState.eventName !== 'mouseMove', {\n        id: 'ember-views.event-dispatcher.mouseenter-leave-move',\n        until: '4.0.0',\n        url: 'https://emberjs.com/deprecations/v3.x#toc_action-mouseenter-leave-move'\n      }));\n      return actionState;\n    }\n\n    install(actionState) {\n      var {\n        dom,\n        element,\n        actionId\n      } = actionState;\n      ActionHelper.registerAction(actionState);\n      dom.setAttribute(element, 'data-ember-action', '');\n      dom.setAttribute(element, `data-ember-action-${actionId}`, actionId);\n    }\n\n    update(actionState) {\n      var {\n        positional\n      } = actionState;\n      var actionNameRef = positional.at(1);\n\n      if (!actionNameRef[INVOKE]) {\n        actionState.actionName = actionNameRef.value();\n      }\n\n      actionState.eventName = actionState.getEventName();\n    }\n\n    getTag(actionState) {\n      return actionState.tag;\n    }\n\n    getDestructor(modifier) {\n      return modifier;\n    }\n\n  }\n\n  var debugRenderMessage;\n\n  if (true\n  /* DEBUG */\n  ) {\n    debugRenderMessage = renderingStack => {\n      return `While rendering:\\n----------------\\n${renderingStack.replace(/^/gm, '  ')}`;\n    };\n  }\n\n  var debugRenderMessage$1 = debugRenderMessage;\n\n  function capabilities$1(managerAPI, optionalFeatures = {}) {\n    if (managerAPI !== '3.13') {\n      managerAPI = '3.13';\n      (true && !(false) && (0, _debug.deprecate)('Modifier manager capabilities now require you to pass a valid version when being generated. Valid versions include: 3.13', false, {\n        until: '3.17.0',\n        id: 'implicit-modifier-manager-capabilities'\n      }));\n    }\n\n    (true && !(managerAPI === '3.13') && (0, _debug.assert)('Invalid modifier manager compatibility specified', managerAPI === '3.13'));\n    return {\n      disableAutoTracking: Boolean(optionalFeatures.disableAutoTracking)\n    };\n  }\n\n  class CustomModifierDefinition {\n    constructor(name, ModifierClass, delegate, isInteractive) {\n      this.name = name;\n      this.ModifierClass = ModifierClass;\n      this.delegate = delegate;\n      this.state = {\n        ModifierClass,\n        name,\n        delegate\n      };\n      this.manager = isInteractive ? CUSTOM_INTERACTIVE_MODIFIER_MANAGER : CUSTOM_NON_INTERACTIVE_MODIFIER_MANAGER;\n    }\n\n  }\n\n  class CustomModifierState {\n    constructor(element, delegate, modifier, args) {\n      this.element = element;\n      this.delegate = delegate;\n      this.modifier = modifier;\n      this.args = args;\n      this.tag = (0, _validator.createUpdatableTag)();\n    }\n\n    destroy() {\n      var {\n        delegate,\n        modifier,\n        args\n      } = this;\n      delegate.destroyModifier(modifier, args.value());\n    }\n\n  }\n  /**\n    The CustomModifierManager allows addons to provide custom modifier\n    implementations that integrate seamlessly into Ember. This is accomplished\n    through a delegate, registered with the custom modifier manager, which\n    implements a set of hooks that determine modifier behavior.\n    To create a custom modifier manager, instantiate a new CustomModifierManager\n    class and pass the delegate as the first argument:\n  \n    ```js\n    let manager = new CustomModifierManager({\n      // ...delegate implementation...\n    });\n    ```\n  \n    ## Delegate Hooks\n  \n    Throughout the lifecycle of a modifier, the modifier manager will invoke\n    delegate hooks that are responsible for surfacing those lifecycle changes to\n    the end developer.\n    * `createModifier()` - invoked when a new instance of a modifier should be created\n    * `installModifier()` - invoked when the modifier is installed on the element\n    * `updateModifier()` - invoked when the arguments passed to a modifier change\n    * `destroyModifier()` - invoked when the modifier is about to be destroyed\n  */\n\n\n  class InteractiveCustomModifierManager {\n    create(element, definition, args) {\n      var {\n        delegate,\n        ModifierClass\n      } = definition;\n      var capturedArgs = args.capture();\n      var instance = definition.delegate.createModifier(ModifierClass, capturedArgs.value());\n\n      if (delegate.capabilities === undefined) {\n        delegate.capabilities = capabilities$1('3.13');\n        (true && !(false) && (0, _debug.deprecate)('Custom modifier managers must define their capabilities using the capabilities() helper function', false, {\n          until: '3.17.0',\n          id: 'implicit-modifier-manager-capabilities'\n        }));\n      }\n\n      return new CustomModifierState(element, delegate, instance, capturedArgs);\n    }\n\n    getTag({\n      args,\n      tag\n    }) {\n      return (0, _validator.combine)([tag, args.tag]);\n    }\n\n    install(state) {\n      var {\n        element,\n        args,\n        delegate,\n        modifier,\n        tag\n      } = state;\n      var {\n        capabilities\n      } = delegate;\n\n      if (capabilities.disableAutoTracking === true) {\n        (0, _validator.untrack)(() => delegate.installModifier(modifier, element, args.value()));\n      } else {\n        var combinedTrackingTag = (0, _validator.track)(() => delegate.installModifier(modifier, element, args.value()), true\n        /* DEBUG */\n        && debugRenderMessage$1(`(instance of a \\`${(0, _utils.getDebugName)(modifier)}\\` modifier)`));\n        (0, _validator.updateTag)(tag, combinedTrackingTag);\n      }\n    }\n\n    update(state) {\n      var {\n        args,\n        delegate,\n        modifier,\n        tag\n      } = state;\n      var {\n        capabilities\n      } = delegate;\n\n      if (capabilities.disableAutoTracking === true) {\n        (0, _validator.untrack)(() => delegate.updateModifier(modifier, args.value()));\n      } else {\n        var combinedTrackingTag = (0, _validator.track)(() => delegate.updateModifier(modifier, args.value()), true\n        /* DEBUG */\n        && debugRenderMessage$1(`(instance of a \\`${(0, _utils.getDebugName)(modifier)}\\` modifier)`));\n        (0, _validator.updateTag)(tag, combinedTrackingTag);\n      }\n    }\n\n    getDestructor(state) {\n      return state;\n    }\n\n  }\n\n  class NonInteractiveCustomModifierManager {\n    create() {\n      return null;\n    }\n\n    getTag() {\n      return _validator.CONSTANT_TAG;\n    }\n\n    install() {}\n\n    update() {}\n\n    getDestructor() {\n      return null;\n    }\n\n  }\n\n  var CUSTOM_INTERACTIVE_MODIFIER_MANAGER = new InteractiveCustomModifierManager();\n  var CUSTOM_NON_INTERACTIVE_MODIFIER_MANAGER = new NonInteractiveCustomModifierManager();\n  var untouchableContext = buildUntouchableThis('`on` modifier');\n  /**\n  @module ember\n  */\n\n  /*\n    Internet Explorer 11 does not support `once` and also does not support\n    passing `eventOptions`. In some situations it then throws a weird script\n    error, like:\n  \n    ```\n    Could not complete the operation due to error 80020101\n    ```\n  \n    This flag determines, whether `{ once: true }` and thus also event options in\n    general are supported.\n  */\n\n  var SUPPORTS_EVENT_OPTIONS = (() => {\n    try {\n      var div = document.createElement('div');\n      var counter = 0;\n      div.addEventListener('click', () => counter++, {\n        once: true\n      });\n      var event;\n\n      if (typeof Event === 'function') {\n        event = new Event('click');\n      } else {\n        event = document.createEvent('Event');\n        event.initEvent('click', true, true);\n      }\n\n      div.dispatchEvent(event);\n      div.dispatchEvent(event);\n      return counter === 1;\n    } catch (error) {\n      return false;\n    }\n  })();\n\n  class OnModifierState {\n    constructor(element, args) {\n      this.shouldUpdate = true;\n      this.element = element;\n      this.args = args;\n      this.tag = args.tag;\n    }\n\n    updateFromArgs() {\n      var {\n        args\n      } = this;\n      var {\n        once,\n        passive,\n        capture\n      } = args.named.value();\n\n      if (once !== this.once) {\n        this.once = once;\n        this.shouldUpdate = true;\n      }\n\n      if (passive !== this.passive) {\n        this.passive = passive;\n        this.shouldUpdate = true;\n      }\n\n      if (capture !== this.capture) {\n        this.capture = capture;\n        this.shouldUpdate = true;\n      }\n\n      var options;\n\n      if (once || passive || capture) {\n        options = this.options = {\n          once,\n          passive,\n          capture\n        };\n      } else {\n        this.options = undefined;\n      }\n\n      (true && !(args.positional.at(0) !== undefined && typeof args.positional.at(0).value() === 'string') && (0, _debug.assert)('You must pass a valid DOM event name as the first argument to the `on` modifier', args.positional.at(0) !== undefined && typeof args.positional.at(0).value() === 'string'));\n      var eventName = args.positional.at(0).value();\n\n      if (eventName !== this.eventName) {\n        this.eventName = eventName;\n        this.shouldUpdate = true;\n      }\n\n      (true && !(args.positional.at(1) !== undefined && typeof args.positional.at(1).value() === 'function') && (0, _debug.assert)('You must pass a function as the second argument to the `on` modifier', args.positional.at(1) !== undefined && typeof args.positional.at(1).value() === 'function'));\n      var userProvidedCallback = args.positional.at(1).value();\n\n      if (userProvidedCallback !== this.userProvidedCallback) {\n        this.userProvidedCallback = userProvidedCallback;\n        this.shouldUpdate = true;\n      }\n\n      (true && !(args.positional.length === 2) && (0, _debug.assert)(`You can only pass two positional arguments (event name and callback) to the \\`on\\` modifier, but you provided ${args.positional.length}. Consider using the \\`fn\\` helper to provide additional arguments to the \\`on\\` callback.`, args.positional.length === 2));\n      var needsCustomCallback = SUPPORTS_EVENT_OPTIONS === false && once ||\n      /* needs manual once implementation */\n      true\n      /* DEBUG */\n      && passive\n      /* needs passive enforcement */\n      ;\n\n      if (this.shouldUpdate) {\n        if (needsCustomCallback) {\n          var callback = this.callback = function (event) {\n            if (true\n            /* DEBUG */\n            && passive) {\n              event.preventDefault = () => {\n                (true && !(false) && (0, _debug.assert)(`You marked this listener as 'passive', meaning that you must not call 'event.preventDefault()': \\n\\n${userProvidedCallback}`));\n              };\n            }\n\n            if (!SUPPORTS_EVENT_OPTIONS && once) {\n              removeEventListener(this, eventName, callback, options);\n            }\n\n            return userProvidedCallback.call(untouchableContext, event);\n          };\n        } else if (true\n        /* DEBUG */\n        ) {\n          // prevent the callback from being bound to the element\n          this.callback = userProvidedCallback.bind(untouchableContext);\n        } else {\n          this.callback = userProvidedCallback;\n        }\n      }\n    }\n\n    destroy() {\n      var {\n        element,\n        eventName,\n        callback,\n        options\n      } = this;\n      removeEventListener(element, eventName, callback, options);\n    }\n\n  }\n\n  var adds = 0;\n  var removes = 0;\n\n  function removeEventListener(element, eventName, callback, options) {\n    removes++;\n\n    if (SUPPORTS_EVENT_OPTIONS) {\n      // when options are supported, use them across the board\n      element.removeEventListener(eventName, callback, options);\n    } else if (options !== undefined && options.capture) {\n      // used only in the following case:\n      //\n      // `{ once: true | false, passive: true | false, capture: true }\n      //\n      // `once` is handled via a custom callback that removes after first\n      // invocation so we only care about capture here as a boolean\n      element.removeEventListener(eventName, callback, true);\n    } else {\n      // used only in the following cases:\n      //\n      // * where there is no options\n      // * `{ once: true | false, passive: true | false, capture: false }\n      element.removeEventListener(eventName, callback);\n    }\n  }\n\n  function addEventListener(element, eventName, callback, options) {\n    adds++;\n\n    if (SUPPORTS_EVENT_OPTIONS) {\n      // when options are supported, use them across the board\n      element.addEventListener(eventName, callback, options);\n    } else if (options !== undefined && options.capture) {\n      // used only in the following case:\n      //\n      // `{ once: true | false, passive: true | false, capture: true }\n      //\n      // `once` is handled via a custom callback that removes after first\n      // invocation so we only care about capture here as a boolean\n      element.addEventListener(eventName, callback, true);\n    } else {\n      // used only in the following cases:\n      //\n      // * where there is no options\n      // * `{ once: true | false, passive: true | false, capture: false }\n      element.addEventListener(eventName, callback);\n    }\n  }\n  /**\n    The `{{on}}` modifier lets you easily add event listeners (it uses\n    [EventTarget.addEventListener](https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/addEventListener)\n    internally).\n  \n    For example, if you'd like to run a function on your component when a `<button>`\n    in the components template is clicked you might do something like:\n  \n    ```app/components/like-post.hbs\n    <button {{on 'click' this.saveLike}}>Like this post!</button>\n    ```\n  \n    ```app/components/like-post.js\n    import Component from '@glimmer/component';\n    import { action } from '@ember/object';\n  \n    export default class LikePostComponent extends Component {\n      @action\n      saveLike() {\n        // someone likes your post!\n        // better send a request off to your server...\n      }\n    }\n    ```\n  \n    ### Arguments\n  \n    `{{on}}` accepts two positional arguments, and a few named arguments.\n  \n    The positional arguments are:\n  \n    - `event` -- the name to use when calling `addEventListener`\n    - `callback` -- the function to be passed to `addEventListener`\n  \n    The named arguments are:\n  \n    - capture -- a `true` value indicates that events of this type will be dispatched\n      to the registered listener before being dispatched to any EventTarget beneath it\n      in the DOM tree.\n    - once -- indicates that the listener should be invoked at most once after being\n      added. If true, the listener would be automatically removed when invoked.\n    - passive -- if `true`, indicates that the function specified by listener will never\n      call preventDefault(). If a passive listener does call preventDefault(), the user\n      agent will do nothing other than generate a console warning. See\n      [Improving scrolling performance with passive listeners](https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/addEventListener#Improving_scrolling_performance_with_passive_listeners)\n      to learn more.\n  \n    The callback function passed to `{{on}}` will receive any arguments that are passed\n    to the event handler. Most commonly this would be the `event` itself.\n  \n    If you would like to pass additional arguments to the function you should use\n    the `{{fn}}` helper.\n  \n    For example, in our example case above if you'd like to pass in the post that\n    was being liked when the button is clicked you could do something like:\n  \n    ```app/components/like-post.hbs\n    <button {{on 'click' (fn this.saveLike @post)}}>Like this post!</button>\n    ```\n  \n    In this case, the `saveLike` function will receive two arguments: the click event\n    and the value of `@post`.\n  \n    ### Function Context\n  \n    In the example above, we used `@action` to ensure that `likePost` is\n    properly bound to the `items-list`, but let's explore what happens if we\n    left out `@action`:\n  \n    ```app/components/like-post.js\n    import Component from '@glimmer/component';\n  \n    export default class LikePostComponent extends Component {\n      saveLike() {\n        // ...snip...\n      }\n    }\n    ```\n  \n    In this example, when the button is clicked `saveLike` will be invoked,\n    it will **not** have access to the component instance. In other\n    words, it will have no `this` context, so please make sure your functions\n    are bound (via `@action` or other means) before passing into `on`!\n  \n    @method on\n    @for Ember.Templates.helpers\n    @public\n    @since 3.11.0\n  */\n\n\n  class OnModifierManager {\n    constructor(isInteractive) {\n      this.SUPPORTS_EVENT_OPTIONS = SUPPORTS_EVENT_OPTIONS;\n      this.isInteractive = isInteractive;\n    }\n\n    get counters() {\n      return {\n        adds,\n        removes\n      };\n    }\n\n    create(element, _state, args) {\n      if (!this.isInteractive) {\n        return null;\n      }\n\n      var capturedArgs = args.capture();\n      return new OnModifierState(element, capturedArgs);\n    }\n\n    getTag(state) {\n      if (state === null) {\n        return _validator.CONSTANT_TAG;\n      }\n\n      return state.tag;\n    }\n\n    install(state) {\n      if (state === null) {\n        return;\n      }\n\n      state.updateFromArgs();\n      var {\n        element,\n        eventName,\n        callback,\n        options\n      } = state;\n      addEventListener(element, eventName, callback, options);\n      state.shouldUpdate = false;\n    }\n\n    update(state) {\n      if (state === null) {\n        return;\n      } // stash prior state for el.removeEventListener\n\n\n      var {\n        element,\n        eventName,\n        callback,\n        options\n      } = state;\n      state.updateFromArgs();\n\n      if (!state.shouldUpdate) {\n        return;\n      } // use prior state values for removal\n\n\n      removeEventListener(element, eventName, callback, options); // read updated values from the state object\n\n      addEventListener(state.element, state.eventName, state.callback, state.options);\n      state.shouldUpdate = false;\n    }\n\n    getDestructor(state) {\n      return state;\n    }\n\n  }\n\n  var CAPABILITIES$3 = {\n    dynamicLayout: true,\n    dynamicTag: false,\n    prepareArgs: false,\n    createArgs: true,\n    attributeHook: false,\n    elementHook: false,\n    createCaller: true,\n    dynamicScope: true,\n    updateHook: true,\n    createInstance: true,\n    wrapped: false,\n    willDestroy: false\n  }; // TODO\n  // This \"disables\" the \"@model\" feature by making the arg untypable syntatically\n  // Delete this when EMBER_ROUTING_MODEL_ARG has shipped\n\n  var MODEL_ARG_NAME = 'model';\n\n  class MountManager extends AbstractManager {\n    getJitDynamicLayout(state, _) {\n      var templateFactory$$1 = state.engine.lookup('template:application');\n      var template = templateFactory$$1(state.engine);\n\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        state.environment.extra.debugRenderTree.setTemplate(state.controller, template);\n      }\n\n      return template;\n    }\n\n    getCapabilities() {\n      return CAPABILITIES$3;\n    }\n\n    create(environment, {\n      name\n    }, args) {\n      // TODO\n      // mount is a runtime helper, this shouldn't use dynamic layout\n      // we should resolve the engine app template in the helper\n      // it also should use the owner that looked up the mount helper.\n      var engine = environment.extra.owner.buildChildEngineInstance(name);\n      engine.boot();\n      var applicationFactory = engine.factoryFor(`controller:application`);\n      var controllerFactory = applicationFactory || (0, _routing.generateControllerFactory)(engine, 'application');\n      var controller;\n      var self;\n      var bucket;\n      var modelRef;\n\n      if (args.named.has(MODEL_ARG_NAME)) {\n        modelRef = args.named.get(MODEL_ARG_NAME);\n      }\n\n      if (modelRef === undefined) {\n        controller = controllerFactory.create();\n        self = new _reference.ComponentRootReference(controller, environment);\n        bucket = {\n          engine,\n          controller,\n          self,\n          environment\n        };\n      } else {\n        var model = modelRef.value();\n        controller = controllerFactory.create({\n          model\n        });\n        self = new _reference.ComponentRootReference(controller, environment);\n        bucket = {\n          engine,\n          controller,\n          self,\n          modelRef,\n          environment\n        };\n      }\n\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        environment.extra.debugRenderTree.create(bucket, {\n          type: 'engine',\n          name,\n          args: args.capture(),\n          instance: engine,\n          template: undefined\n        });\n        environment.extra.debugRenderTree.create(controller, {\n          type: 'route-template',\n          name: 'application',\n          args: args.capture(),\n          instance: controller,\n          // set in getDynamicLayout\n          template: undefined\n        });\n      }\n\n      return bucket;\n    }\n\n    getSelf({\n      self\n    }) {\n      return self;\n    }\n\n    getTag(state) {\n      var tag = _validator.CONSTANT_TAG;\n\n      if (state.modelRef) {\n        tag = state.modelRef.tag;\n      }\n\n      if (_environment2.ENV._DEBUG_RENDER_TREE && (0, _validator.isConstTag)(tag)) {\n        tag = (0, _validator.createTag)();\n      }\n\n      return tag;\n    }\n\n    getDestructor(bucket) {\n      var {\n        engine,\n        environment,\n        controller\n      } = bucket;\n\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        return {\n          destroy() {\n            environment.extra.debugRenderTree.willDestroy(controller);\n            environment.extra.debugRenderTree.willDestroy(bucket);\n            engine.destroy();\n          }\n\n        };\n      } else {\n        return engine;\n      }\n    }\n\n    didRenderLayout(bucket, bounds) {\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        bucket.environment.extra.debugRenderTree.didRender(bucket.controller, bounds);\n        bucket.environment.extra.debugRenderTree.didRender(bucket, bounds);\n      }\n    }\n\n    update(bucket) {\n      var {\n        controller,\n        environment,\n        modelRef\n      } = bucket;\n\n      if (modelRef !== undefined) {\n        controller.set('model', modelRef.value());\n      }\n\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        environment.extra.debugRenderTree.update(bucket);\n        environment.extra.debugRenderTree.update(bucket.controller);\n      }\n    }\n\n    didUpdateLayout(bucket, bounds) {\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        bucket.environment.extra.debugRenderTree.didRender(bucket.controller, bounds);\n        bucket.environment.extra.debugRenderTree.didRender(bucket, bounds);\n      }\n    }\n\n  }\n\n  var MOUNT_MANAGER = new MountManager();\n\n  class MountDefinition {\n    constructor(name) {\n      this.manager = MOUNT_MANAGER;\n      this.state = {\n        name\n      };\n    }\n\n  }\n  /**\n  @module ember\n  */\n\n\n  function mountHelper(args, vm) {\n    var env = vm.env;\n    var nameRef = args.positional.at(0);\n    var captured = null;\n    (true && !(args.positional.length === 1) && (0, _debug.assert)('You can only pass a single positional argument to the {{mount}} helper, e.g. {{mount \"chat-engine\"}}.', args.positional.length === 1));\n\n    if (true\n    /* DEBUG */\n    && args.named) {\n      var keys = args.named.names;\n      var extra = keys.filter(k => k !== 'model');\n      (true && !(extra.length === 0) && (0, _debug.assert)('You can only pass a `model` argument to the {{mount}} helper, ' + 'e.g. {{mount \"profile-engine\" model=this.profile}}. ' + `You passed ${extra.join(',')}.`, extra.length === 0));\n    } // TODO: the functionality to create a proper CapturedArgument should be\n    // exported by glimmer, or that it should provide an overload for `curry`\n    // that takes `PreparedArguments`\n\n\n    if (args.named.has('model')) {\n      (true && !(args.named.length === 1) && (0, _debug.assert)('[BUG] this should already be checked by the macro', args.named.length === 1));\n      var named = args.named.capture();\n      var {\n        tag\n      } = named; // TODO delete me after EMBER_ROUTING_MODEL_ARG has shipped\n\n      if (true\n      /* DEBUG */\n      && MODEL_ARG_NAME !== 'model') {\n        (true && !(named['_map'] === null) && (0, _debug.assert)('[BUG] named._map is not null', named['_map'] === null));\n        named.names = [MODEL_ARG_NAME];\n      }\n\n      captured = {\n        tag,\n        positional: _runtime2.EMPTY_ARGS.positional,\n        named,\n        length: 1,\n\n        value() {\n          return {\n            named: this.named.value(),\n            positional: this.positional.value()\n          };\n        }\n\n      };\n    }\n\n    return new DynamicEngineReference(nameRef, env, captured);\n  }\n  /**\n    The `{{mount}}` helper lets you embed a routeless engine in a template.\n    Mounting an engine will cause an instance to be booted and its `application`\n    template to be rendered.\n  \n    For example, the following template mounts the `ember-chat` engine:\n  \n    ```handlebars\n    {{! application.hbs }}\n    {{mount \"ember-chat\"}}\n    ```\n  \n    Additionally, you can also pass in a `model` argument that will be\n    set as the engines model. This can be an existing object:\n  \n    ```\n    <div>\n      {{mount 'admin' model=userSettings}}\n    </div>\n    ```\n  \n    Or an inline `hash`, and you can even pass components:\n  \n    ```\n    <div>\n      <h1>Application template!</h1>\n      {{mount 'admin' model=(hash\n          title='Secret Admin'\n          signInButton=(component 'sign-in-button')\n      )}}\n    </div>\n    ```\n  \n    @method mount\n    @param {String} name Name of the engine to mount.\n    @param {Object} [model] Object that will be set as\n                            the model of the engine.\n    @for Ember.Templates.helpers\n    @public\n  */\n\n\n  class DynamicEngineReference {\n    constructor(nameRef, env, args) {\n      this.nameRef = nameRef;\n      this.env = env;\n      this.args = args;\n      this._lastName = null;\n      this._lastDef = null;\n      this.tag = nameRef.tag;\n    }\n\n    value() {\n      var {\n        env,\n        nameRef,\n        args\n      } = this;\n      var name = nameRef.value();\n\n      if (typeof name === 'string') {\n        if (this._lastName === name) {\n          return this._lastDef;\n        }\n\n        (true && !(env.extra.owner.hasRegistration(`engine:${name}`)) && (0, _debug.assert)(`You used \\`{{mount '${name}'}}\\`, but the engine '${name}' can not be found.`, env.extra.owner.hasRegistration(`engine:${name}`)));\n\n        if (!env.extra.owner.hasRegistration(`engine:${name}`)) {\n          return null;\n        }\n\n        this._lastName = name;\n        this._lastDef = (0, _runtime2.curry)(new MountDefinition(name), args);\n        return this._lastDef;\n      } else {\n        (true && !(name === null || name === undefined) && (0, _debug.assert)(`Invalid engine name '${name}' specified, engine name must be either a string, null or undefined.`, name === null || name === undefined));\n        this._lastDef = null;\n        this._lastName = null;\n        return null;\n      }\n    }\n\n    get() {\n      return _runtime2.UNDEFINED_REFERENCE;\n    }\n\n  }\n  /**\n   * Represents the root outlet.\n   */\n\n\n  class RootOutletReference {\n    constructor(outletState) {\n      this.outletState = outletState;\n      this.tag = (0, _validator.createTag)();\n    }\n\n    get(key) {\n      return new PathReference(this, key);\n    }\n\n    value() {\n      return this.outletState;\n    }\n\n    update(state) {\n      this.outletState.outlets.main = state;\n      (0, _validator.dirtyTag)(this.tag);\n    }\n\n  }\n  /**\n   * Represents the connected outlet.\n   */\n\n\n  class OutletReference {\n    constructor(parentStateRef, outletNameRef) {\n      this.parentStateRef = parentStateRef;\n      this.outletNameRef = outletNameRef;\n      this.tag = (0, _validator.combine)([parentStateRef.tag, outletNameRef.tag]);\n    }\n\n    value() {\n      var outletState = this.parentStateRef.value();\n      var outlets = outletState === undefined ? undefined : outletState.outlets;\n      return outlets === undefined ? undefined : outlets[this.outletNameRef.value()];\n    }\n\n    get(key) {\n      return new PathReference(this, key);\n    }\n\n  }\n  /**\n   * Outlet state is dirtied from root.\n   * This just using the parent tag for dirtiness.\n   */\n\n\n  class PathReference {\n    constructor(parent, key) {\n      this.parent = parent;\n      this.key = key;\n      this.tag = parent.tag;\n    }\n\n    get(key) {\n      return new PathReference(this, key);\n    }\n\n    value() {\n      var parent = this.parent.value();\n      return parent && parent[this.key];\n    }\n\n  }\n  /**\n    The `{{outlet}}` helper lets you specify where a child route will render in\n    your template. An important use of the `{{outlet}}` helper is in your\n    application's `application.hbs` file:\n  \n    ```app/templates/application.hbs\n    <MyHeader />\n  \n    <div class=\"my-dynamic-content\">\n      <!-- this content will change based on the current route, which depends on the current URL -->\n      {{outlet}}\n    </div>\n  \n    <MyFooter />\n    ```\n  \n    You may also specify a name for the `{{outlet}}`, which is useful when using more than one\n    `{{outlet}}` in a template:\n  \n    ```app/templates/application.hbs\n    {{outlet \"menu\"}}\n    {{outlet \"sidebar\"}}\n    {{outlet \"main\"}}\n    ```\n  \n    Your routes can then render into a specific one of these `outlet`s by specifying the `outlet`\n    attribute in your `renderTemplate` function:\n  \n    ```app/routes/menu.js\n    import Route from '@ember/routing/route';\n  \n    export default class MenuRoute extends Route {\n      renderTemplate() {\n        this.render({ outlet: 'menu' });\n      }\n    }\n    ```\n  \n    See the [routing guide](https://guides.emberjs.com/release/routing/rendering-a-template/) for more\n    information on how your `route` interacts with the `{{outlet}}` helper.\n    Note: Your content __will not render__ if there isn't an `{{outlet}}` for it.\n  \n    @method outlet\n    @param {String} [name]\n    @for Ember.Templates.helpers\n    @public\n  */\n\n\n  function outletHelper(args, vm) {\n    var scope = vm.dynamicScope();\n    var nameRef;\n\n    if (args.positional.length === 0) {\n      nameRef = new _reference.ConstReference('main');\n    } else {\n      nameRef = args.positional.at(0);\n    }\n\n    return new OutletComponentReference(new OutletReference(scope.outletState, nameRef), vm.env);\n  }\n\n  class OutletModelReference extends _reference.RootReference {\n    constructor(parent, env) {\n      super(env);\n      this.parent = parent;\n      this.tag = parent.tag;\n    }\n\n    value() {\n      var state = this.parent.value();\n\n      if (state === undefined) {\n        return undefined;\n      }\n\n      var {\n        render\n      } = state;\n\n      if (render === undefined) {\n        return undefined;\n      }\n\n      return render.model;\n    }\n\n  }\n\n  if (true\n  /* DEBUG */\n  ) {\n    OutletModelReference.prototype['debugLogName'] = '@model';\n  }\n\n  class OutletComponentReference {\n    constructor(outletRef, env) {\n      this.outletRef = outletRef;\n      this.env = env;\n      this.definition = null;\n      this.lastState = null; // The router always dirties the root state.\n\n      this.tag = outletRef.tag;\n    }\n\n    value() {\n      var state = stateFor(this.outletRef);\n\n      if (validate(state, this.lastState)) {\n        return this.definition;\n      }\n\n      this.lastState = state;\n      var definition = null;\n\n      if (state !== null) {\n        var args = makeArgs(this.outletRef, this.env);\n        definition = (0, _runtime2.curry)(new OutletComponentDefinition(state), args);\n      }\n\n      return this.definition = definition;\n    }\n\n    get(_key) {\n      return _runtime2.UNDEFINED_REFERENCE;\n    }\n\n  }\n\n  function makeArgs(outletRef, env) {\n    var tag = outletRef.tag;\n    var modelRef = new OutletModelReference(outletRef, env);\n    var map = (0, _util.dict)();\n    map.model = modelRef; // TODO: the functionailty to create a proper CapturedArgument should be\n    // exported by glimmer, or that it should provide an overload for `curry`\n    // that takes `PreparedArguments`\n\n    return {\n      tag,\n      positional: _runtime2.EMPTY_ARGS.positional,\n      named: {\n        tag,\n        map,\n        names: ['model'],\n        references: [modelRef],\n        length: 1,\n\n        has(key) {\n          return key === 'model';\n        },\n\n        get(key) {\n          return key === 'model' ? modelRef : _runtime2.UNDEFINED_REFERENCE;\n        },\n\n        value() {\n          var model = modelRef.value();\n          return {\n            model\n          };\n        }\n\n      },\n      length: 1,\n\n      value() {\n        return {\n          named: this.named.value(),\n          positional: this.positional.value()\n        };\n      }\n\n    };\n  }\n\n  function stateFor(ref) {\n    var outlet = ref.value();\n    if (outlet === undefined) return null;\n    var render = outlet.render;\n    if (render === undefined) return null;\n    var template$$1 = render.template;\n    if (template$$1 === undefined) return null; // this guard can be removed once @ember/test-helpers@1.6.0 has \"aged out\"\n    // and is no longer considered supported\n\n    if (isTemplateFactory(template$$1)) {\n      template$$1 = template$$1(render.owner);\n    }\n\n    return {\n      ref,\n      name: render.name,\n      outlet: render.outlet,\n      template: template$$1,\n      controller: render.controller,\n      model: render.model\n    };\n  }\n\n  function validate(state, lastState) {\n    if (state === null) {\n      return lastState === null;\n    }\n\n    if (lastState === null) {\n      return false;\n    }\n\n    return state.template === lastState.template && state.controller === lastState.controller;\n  }\n\n  var TEMPLATES = new WeakMap();\n  var getPrototypeOf = Object.getPrototypeOf;\n\n  function setComponentTemplate(factory, obj) {\n    (true && !(obj !== null && (typeof obj === 'object' || typeof obj === 'function')) && (0, _debug.assert)(`Cannot call \\`setComponentTemplate\\` on \\`${(0, _utils.toString)(obj)}\\``, obj !== null && (typeof obj === 'object' || typeof obj === 'function')));\n    (true && !(!TEMPLATES.has(obj)) && (0, _debug.assert)(`Cannot call \\`setComponentTemplate\\` multiple times on the same class (\\`${obj}\\`)`, !TEMPLATES.has(obj)));\n    TEMPLATES.set(obj, factory);\n    return obj;\n  }\n\n  function getComponentTemplate(obj) {\n    var pointer = obj;\n\n    while (pointer !== undefined && pointer !== null) {\n      var _template = TEMPLATES.get(pointer);\n\n      if (_template !== undefined) {\n        return _template;\n      }\n\n      pointer = getPrototypeOf(pointer);\n    }\n\n    return null;\n  }\n\n  var MANAGERS = new WeakMap();\n  var getPrototypeOf$1 = Object.getPrototypeOf;\n\n  function setManager(wrapper, obj) {\n    MANAGERS.set(obj, wrapper);\n    return obj;\n  }\n\n  function getManager(obj) {\n    var pointer = obj;\n\n    while (pointer !== undefined && pointer !== null) {\n      var manager = MANAGERS.get(pointer);\n\n      if (manager !== undefined) {\n        return manager;\n      }\n\n      pointer = getPrototypeOf$1(pointer);\n    }\n\n    return null;\n  }\n\n  function setModifierManager(factory, obj) {\n    return setManager({\n      factory,\n      internal: false,\n      type: 'modifier'\n    }, obj);\n  }\n\n  function getModifierManager(obj) {\n    var wrapper = getManager(obj);\n\n    if (wrapper && !wrapper.internal && wrapper.type === 'modifier') {\n      return wrapper.factory;\n    } else {\n      return undefined;\n    }\n  }\n\n  function instrumentationPayload$1(name) {\n    return {\n      object: `component:${name}`\n    };\n  }\n\n  function makeOptions(moduleName, namespace) {\n    return {\n      source: moduleName !== undefined ? `template:${moduleName}` : undefined,\n      namespace\n    };\n  }\n\n  function componentFor(name, owner, options) {\n    var fullName = `component:${name}`;\n    return owner.factoryFor(fullName, options) || null;\n  }\n\n  function layoutFor(name, owner, options) {\n    var templateFullName = `template:components/${name}`;\n    return owner.lookup(templateFullName, options) || null;\n  }\n\n  function lookupComponentPair(owner, name, options) {\n    var component = componentFor(name, owner, options);\n    {\n      if (component !== null && component.class !== undefined) {\n        var _layout = getComponentTemplate(component.class);\n\n        if (_layout !== null) {\n          return {\n            component,\n            layout: _layout\n          };\n        }\n      }\n    }\n    var layout = layoutFor(name, owner, options);\n\n    if (component === null && layout === null) {\n      return null;\n    } else {\n      return {\n        component,\n        layout\n      };\n    }\n  }\n\n  function lookupComponent(owner, name, options) {\n    if (options.source || options.namespace) {\n      var pair = lookupComponentPair(owner, name, options);\n\n      if (pair !== null) {\n        return pair;\n      }\n    }\n\n    return lookupComponentPair(owner, name);\n  }\n\n  var lookupPartial;\n  var templateFor;\n  var parseUnderscoredName;\n\n  if (_deprecatedFeatures.PARTIALS) {\n    lookupPartial = function (templateName, owner) {\n      (true && !(false) && (0, _debug.deprecate)(`The use of \\`{{partial}}\\` is deprecated, please refactor the \"${templateName}\" partial to a component`, false, {\n        id: 'ember-views.partial',\n        until: '4.0.0',\n        url: 'https://deprecations.emberjs.com/v3.x#toc_ember-views-partial'\n      }));\n\n      if (templateName === null) {\n        return;\n      }\n\n      var template = templateFor(owner, parseUnderscoredName(templateName), templateName);\n      (true && !(Boolean(template)) && (0, _debug.assert)(`Unable to find partial with name \"${templateName}\"`, Boolean(template)));\n      return template;\n    };\n\n    templateFor = function (owner, underscored, name) {\n      if (_deprecatedFeatures.PARTIALS) {\n        if (!name) {\n          return;\n        }\n\n        (true && !(name.indexOf('.') === -1) && (0, _debug.assert)(`templateNames are not allowed to contain periods: ${name}`, name.indexOf('.') === -1));\n\n        if (!owner) {\n          throw new _error.default('Container was not found when looking up a views template. ' + 'This is most likely due to manually instantiating an Ember.View. ' + 'See: http://git.io/EKPpnA');\n        }\n\n        return owner.lookup(`template:${underscored}`) || owner.lookup(`template:${name}`);\n      }\n    };\n\n    parseUnderscoredName = function (templateName) {\n      var nameParts = templateName.split('/');\n      var lastPart = nameParts[nameParts.length - 1];\n      nameParts[nameParts.length - 1] = `_${lastPart}`;\n      return nameParts.join('/');\n    };\n  }\n\n  var BUILTINS_HELPERS = {\n    if: inlineIf,\n    action,\n    array,\n    concat: concat$1,\n    fn: fn$1,\n    get: get$1,\n    hash,\n    log: log$1,\n    mut,\n    'query-params': queryParams$1,\n    readonly,\n    unbound,\n    unless: inlineUnless,\n    '-hash': hash,\n    '-each-in': eachIn,\n    '-input-type': inputTypeHelper$1,\n    '-normalize-class': normalizeClassHelper,\n    '-track-array': trackArray,\n    '-get-dynamic-var': _runtime2.getDynamicVar,\n    '-mount': mountHelper,\n    '-outlet': outletHelper,\n    '-assert-implicit-component-helper-argument': componentAssertionHelper\n  };\n\n  class RuntimeResolver {\n    constructor(isInteractive) {\n      this.handles = [undefined];\n      this.objToHandle = new WeakMap();\n      this.builtInHelpers = BUILTINS_HELPERS;\n      this.componentDefinitionCache = new Map();\n      this.componentDefinitionCount = 0;\n      this.helperDefinitionCount = 0;\n      this.isInteractive = isInteractive;\n      this.builtInModifiers = {\n        action: {\n          manager: new ActionModifierManager(),\n          state: null\n        },\n        on: {\n          manager: new OnModifierManager(isInteractive),\n          state: null\n        }\n      };\n    }\n    /***  IRuntimeResolver ***/\n\n    /**\n     * public componentDefHandleCount = 0;\n     * Called while executing Append Op.PushDynamicComponentManager if string\n     */\n\n\n    lookupComponent(name, meta) {\n      var handle = this.lookupComponentHandle(name, meta);\n\n      if (handle === null) {\n        (true && !(false) && (0, _debug.assert)(`Could not find component named \"${name}\" (no component or template with that name was found)`));\n        return null;\n      }\n\n      return this.resolve(handle);\n    }\n\n    lookupComponentHandle(name, meta) {\n      var nextHandle = this.handles.length;\n      var handle = this.handle(this._lookupComponentDefinition(name, meta));\n      (true && !(!(name === 'text-area' && handle === null)) && (0, _debug.assert)('Could not find component `<TextArea />` (did you mean `<Textarea />`?)', !(name === 'text-area' && handle === null)));\n\n      if (nextHandle === handle) {\n        this.componentDefinitionCount++;\n      }\n\n      return handle;\n    }\n    /**\n     * Called by RuntimeConstants to lookup unresolved handles.\n     */\n\n\n    resolve(handle) {\n      return this.handles[handle];\n    } // End IRuntimeResolver\n\n    /**\n     * Called by CompileTimeLookup compiling Unknown or Helper OpCode\n     */\n\n\n    lookupHelper(name, meta) {\n      var nextHandle = this.handles.length;\n\n      var helper$$1 = this._lookupHelper(name, meta);\n\n      if (helper$$1 !== null) {\n        var handle = this.handle(helper$$1);\n\n        if (nextHandle === handle) {\n          this.helperDefinitionCount++;\n        }\n\n        return handle;\n      }\n\n      return null;\n    }\n    /**\n     * Called by CompileTimeLookup compiling the\n     */\n\n\n    lookupModifier(name, meta) {\n      return this.handle(this._lookupModifier(name, meta));\n    }\n    /**\n     * Called by CompileTimeLookup to lookup partial\n     */\n\n\n    lookupPartial(name, meta) {\n      if (_deprecatedFeatures.PARTIALS) {\n        var partial = this._lookupPartial(name, meta);\n\n        return this.handle(partial);\n      } else {\n        return null;\n      }\n    } // TODO: This isn't necessary in all embedding environments, we should likely\n    // make it optional within Glimmer-VM\n\n\n    compilable() {} // end CompileTimeLookup\n    // needed for lazy compile time lookup\n\n\n    handle(obj) {\n      if (obj === undefined || obj === null) {\n        return null;\n      }\n\n      var handle = this.objToHandle.get(obj);\n\n      if (handle === undefined) {\n        handle = this.handles.push(obj) - 1;\n        this.objToHandle.set(obj, handle);\n      }\n\n      return handle;\n    }\n\n    _lookupHelper(_name, meta) {\n      (true && !(!(this.builtInHelpers[_name] && meta.owner.hasRegistration(`helper:${_name}`))) && (0, _debug.assert)(`You attempted to overwrite the built-in helper \"${_name}\" which is not allowed. Please rename the helper.`, !(this.builtInHelpers[_name] && meta.owner.hasRegistration(`helper:${_name}`))));\n      var helper$$1 = this.builtInHelpers[_name];\n\n      if (helper$$1 !== undefined) {\n        return helper$$1;\n      }\n\n      var {\n        moduleName\n      } = meta;\n      var owner = meta.owner;\n      var name = _name;\n      var namespace = undefined;\n      var options = makeOptions(moduleName, namespace);\n      var factory = owner.factoryFor(`helper:${name}`, options) || owner.factoryFor(`helper:${name}`);\n\n      if (!isHelperFactory(factory)) {\n        return null;\n      }\n\n      return (args, vm) => {\n        var helper$$1 = factory.create();\n\n        if (isClassHelper(helper$$1)) {\n          vm.associateDestroyable({\n            destroy() {\n              helper$$1.destroy();\n            }\n\n          });\n        } else if (true\n        /* DEBUG */\n        ) {\n          // Bind to null in case someone accidentally passed an unbound function\n          // in, and attempts use `this` on it.\n          //\n          // TODO: Update buildUntouchableThis to be flexible enough to provide a\n          // nice error message here.\n          helper$$1.compute = helper$$1.compute.bind(null);\n        }\n\n        return new EmberHelperRootReference(helper$$1, args.capture(), vm.env);\n      };\n    }\n\n    _lookupPartial(name, meta) {\n      var owner = meta.owner;\n      var templateFactory$$1 = lookupPartial(name, owner);\n      var template = templateFactory$$1(owner);\n      return new _opcodeCompiler.PartialDefinitionImpl(name, template);\n    }\n\n    _lookupModifier(name, meta) {\n      var builtin = this.builtInModifiers[name];\n\n      if (builtin === undefined) {\n        var owner = meta.owner;\n        var modifier = owner.factoryFor(`modifier:${name}`);\n\n        if (modifier !== undefined) {\n          var managerFactory = getModifierManager(modifier.class);\n          var manager = managerFactory(owner);\n          return new CustomModifierDefinition(name, modifier, manager, this.isInteractive);\n        }\n      }\n\n      return builtin;\n    }\n\n    _parseNameForNamespace(_name) {\n      var name = _name;\n      var namespace = undefined;\n\n      var namespaceDelimiterOffset = _name.indexOf('::');\n\n      if (namespaceDelimiterOffset !== -1) {\n        name = _name.slice(namespaceDelimiterOffset + 2);\n        namespace = _name.slice(0, namespaceDelimiterOffset);\n      }\n\n      return {\n        name,\n        namespace\n      };\n    }\n\n    _lookupComponentDefinition(_name, meta) {\n      var name = _name;\n      var namespace = undefined;\n      var owner = meta.owner;\n      var {\n        moduleName\n      } = meta;\n      var pair = lookupComponent(owner, name, makeOptions(moduleName, namespace));\n\n      if (pair === null) {\n        return null;\n      }\n\n      var layout;\n      var key;\n\n      if (pair.component === null) {\n        key = layout = pair.layout(owner);\n      } else {\n        key = pair.component;\n      }\n\n      var cachedComponentDefinition = this.componentDefinitionCache.get(key);\n\n      if (cachedComponentDefinition !== undefined) {\n        return cachedComponentDefinition;\n      }\n\n      if (layout === undefined && pair.layout !== null) {\n        layout = pair.layout(owner);\n      }\n\n      var finalizer = (0, _instrumentation._instrumentStart)('render.getComponentDefinition', instrumentationPayload$1, name);\n      var definition = null;\n\n      if (pair.component === null) {\n        if (_environment2.ENV._TEMPLATE_ONLY_GLIMMER_COMPONENTS) {\n          definition = new TemplateOnlyComponentDefinition(name, layout);\n        }\n      } else if (true\n      /* EMBER_GLIMMER_SET_COMPONENT_TEMPLATE */\n      && (0, _templateOnly.isTemplateOnlyComponent)(pair.component.class)) {\n        definition = new TemplateOnlyComponentDefinition(name, layout);\n      }\n\n      if (pair.component !== null) {\n        (true && !(pair.component.class !== undefined) && (0, _debug.assert)(`missing component class ${name}`, pair.component.class !== undefined));\n        var ComponentClass = pair.component.class;\n        var wrapper = getManager(ComponentClass);\n\n        if (wrapper !== null && wrapper.type === 'component') {\n          var {\n            factory\n          } = wrapper;\n\n          if (wrapper.internal) {\n            (true && !(pair.layout !== null) && (0, _debug.assert)(`missing layout for internal component ${name}`, pair.layout !== null));\n            definition = new InternalComponentDefinition(factory(owner), ComponentClass, layout);\n          } else {\n            definition = new CustomManagerDefinition(name, pair.component, factory(owner), layout !== undefined ? layout : owner.lookup((0, _container.privatize)`template:components/-default`)(owner));\n          }\n        }\n      }\n\n      if (definition === null) {\n        definition = new CurlyComponentDefinition(name, pair.component || owner.factoryFor((0, _container.privatize)`component:-default`), layout);\n      }\n\n      finalizer();\n      this.componentDefinitionCache.set(key, definition);\n      return definition;\n    }\n\n  }\n\n  function hashToArgs(hash) {\n    if (hash === null) return null;\n    var names = hash[0].map(key => `@${key}`);\n    return [names, hash[1]];\n  }\n\n  var experimentalMacros = []; // This is a private API to allow for experimental macros\n  // to be created in user space. Registering a macro should\n  // should be done in an initializer.\n\n  _exports._experimentalMacros = experimentalMacros;\n\n  function registerMacros(macro) {\n    experimentalMacros.push(macro);\n  }\n\n  function refineInlineSyntax(name, params, hash, context) {\n    var component = context.resolver.lookupComponent(name, context.meta.referrer);\n\n    if (component !== null) {\n      return (0, _opcodeCompiler.staticComponent)(component, [params === null ? [] : params, hashToArgs(hash), _opcodeCompiler.EMPTY_BLOCKS]);\n    }\n\n    return _opcodeCompiler.UNHANDLED;\n  }\n\n  function refineBlockSyntax(name, params, hash, blocks, context) {\n    var handle = context.resolver.lookupComponent(name, context.meta.referrer);\n\n    if (handle !== null) {\n      return (0, _opcodeCompiler.staticComponent)(handle, [params, hashToArgs(hash), blocks]);\n    }\n\n    (true && !(context.meta.referrer.owner.hasRegistration(`helper:${name}`)) && (0, _debug.assert)(`A component or helper named \"${name}\" could not be found`, context.meta.referrer.owner.hasRegistration(`helper:${name}`)));\n    (true && !(!(() => {\n      var resolver = context.resolver['inner']['resolver'];\n      var {\n        moduleName,\n        owner\n      } = context.meta.referrer;\n\n      if (name === 'component' || resolver['builtInHelpers'][name]) {\n        return true;\n      }\n\n      var options = {\n        source: `template:${moduleName}`\n      };\n      return owner.hasRegistration(`helper:${name}`, options) || owner.hasRegistration(`helper:${name}`);\n    })()) && (0, _debug.assert)(`Helpers may not be used in the block form, for example {{#${name}}}{{/${name}}}. Please use a component, or alternatively use the helper in combination with a built-in Ember helper, for example {{#if (${name})}}{{/if}}.`, !(() => {\n      var resolver = context.resolver['inner']['resolver'];\n      var {\n        moduleName,\n        owner\n      } = context.meta.referrer;\n\n      if (name === 'component' || resolver['builtInHelpers'][name]) {\n        return true;\n      }\n\n      var options = {\n        source: `template:${moduleName}`\n      };\n      return owner.hasRegistration(`helper:${name}`, options) || owner.hasRegistration(`helper:${name}`);\n    })()));\n    return _opcodeCompiler.NONE;\n  }\n\n  function populateMacros(macros) {\n    var {\n      inlines,\n      blocks\n    } = macros;\n    inlines.addMissing(refineInlineSyntax);\n    blocks.addMissing(refineBlockSyntax);\n\n    for (var i = 0; i < experimentalMacros.length; i++) {\n      var macro = experimentalMacros[i];\n      macro(blocks, inlines);\n    }\n\n    return {\n      blocks,\n      inlines\n    };\n  }\n\n  class DynamicScope {\n    constructor(view, outletState) {\n      this.view = view;\n      this.outletState = outletState;\n    }\n\n    child() {\n      return new DynamicScope(this.view, this.outletState);\n    }\n\n    get(key) {\n      // tslint:disable-next-line:max-line-length\n      (true && !(key === 'outletState') && (0, _debug.assert)(`Using \\`-get-dynamic-scope\\` is only supported for \\`outletState\\` (you used \\`${key}\\`).`, key === 'outletState'));\n      return this.outletState;\n    }\n\n    set(key, value) {\n      // tslint:disable-next-line:max-line-length\n      (true && !(key === 'outletState') && (0, _debug.assert)(`Using \\`-with-dynamic-scope\\` is only supported for \\`outletState\\` (you used \\`${key}\\`).`, key === 'outletState'));\n      this.outletState = value;\n      return value;\n    }\n\n  }\n\n  class RootState {\n    constructor(root, runtime, context, template, self, parentElement, dynamicScope, builder) {\n      this.root = root;\n      this.runtime = runtime;\n      (true && !(template !== undefined) && (0, _debug.assert)(`You cannot render \\`${self.value()}\\` without a template.`, template !== undefined));\n      this.id = (0, _views.getViewId)(root);\n      this.result = undefined;\n      this.destroyed = false;\n\n      this.render = () => {\n        var layout = (0, _util.unwrapTemplate)(template).asLayout();\n        var handle = layout.compile(context);\n        var iterator = (0, _runtime2.renderJitMain)(runtime, context, self, builder(runtime.env, {\n          element: parentElement,\n          nextSibling: null\n        }), (0, _util.unwrapHandle)(handle), dynamicScope);\n        var iteratorResult;\n\n        do {\n          iteratorResult = iterator.next();\n        } while (!iteratorResult.done);\n\n        var result = this.result = iteratorResult.value; // override .render function after initial render\n\n        this.render = () => result.rerender({\n          alwaysRevalidate: false\n        });\n      };\n    }\n\n    isFor(possibleRoot) {\n      return this.root === possibleRoot;\n    }\n\n    destroy() {\n      var {\n        result,\n        runtime: {\n          env\n        }\n      } = this;\n      this.destroyed = true;\n      this.runtime = undefined;\n      this.root = null;\n      this.result = undefined;\n      this.render = undefined;\n\n      if (result) {\n        /*\n         Handles these scenarios:\n                * When roots are removed during standard rendering process, a transaction exists already\n           `.begin()` / `.commit()` are not needed.\n         * When roots are being destroyed manually (`component.append(); component.destroy() case), no\n           transaction exists already.\n         * When roots are being destroyed during `Renderer#destroy`, no transaction exists\n                */\n        (0, _runtime2.inTransaction)(env, () => result.destroy());\n      }\n    }\n\n  }\n\n  var renderers = [];\n\n  function _resetRenderers() {\n    renderers.length = 0;\n  }\n\n  function register(renderer) {\n    (true && !(renderers.indexOf(renderer) === -1) && (0, _debug.assert)('Cannot register the same renderer twice', renderers.indexOf(renderer) === -1));\n    renderers.push(renderer);\n  }\n\n  function deregister(renderer) {\n    var index = renderers.indexOf(renderer);\n    (true && !(index !== -1) && (0, _debug.assert)('Cannot deregister unknown unregistered renderer', index !== -1));\n    renderers.splice(index, 1);\n  }\n\n  function loopBegin() {\n    for (var i = 0; i < renderers.length; i++) {\n      renderers[i]._scheduleRevalidate();\n    }\n  }\n\n  function K() {\n    /* noop */\n  }\n\n  var renderSettledDeferred = null;\n  /*\n    Returns a promise which will resolve when rendering has settled. Settled in\n    this context is defined as when all of the tags in use are \"current\" (e.g.\n    `renderers.every(r => r._isValid())`). When this is checked at the _end_ of\n    the run loop, this essentially guarantees that all rendering is completed.\n  \n    @method renderSettled\n    @returns {Promise<void>} a promise which fulfills when rendering has settled\n  */\n\n  function renderSettled() {\n    if (renderSettledDeferred === null) {\n      renderSettledDeferred = _rsvp.default.defer(); // if there is no current runloop, the promise created above will not have\n      // a chance to resolve (because its resolved in backburner's \"end\" event)\n\n      if (!(0, _runloop.getCurrentRunLoop)()) {\n        // ensure a runloop has been kicked off\n        _runloop.backburner.schedule('actions', null, K);\n      }\n    }\n\n    return renderSettledDeferred.promise;\n  }\n\n  function resolveRenderPromise() {\n    if (renderSettledDeferred !== null) {\n      var resolve = renderSettledDeferred.resolve;\n      renderSettledDeferred = null;\n\n      _runloop.backburner.join(null, resolve);\n    }\n  }\n\n  var loops = 0;\n\n  function loopEnd() {\n    for (var i = 0; i < renderers.length; i++) {\n      if (!renderers[i]._isValid()) {\n        if (loops > _environment2.ENV._RERENDER_LOOP_LIMIT) {\n          loops = 0; // TODO: do something better\n\n          renderers[i].destroy();\n          throw new Error('infinite rendering invalidation detected');\n        }\n\n        loops++;\n        return _runloop.backburner.join(null, K);\n      }\n    }\n\n    loops = 0;\n    resolveRenderPromise();\n  }\n\n  _runloop.backburner.on('begin', loopBegin);\n\n  _runloop.backburner.on('end', loopEnd);\n\n  class Renderer {\n    constructor(owner, document, env, rootTemplate, viewRegistry, destinedForDOM = false, builder = _runtime2.clientBuilder) {\n      this._inRenderTransaction = false;\n      this._lastRevision = -1;\n      this._destroyed = false;\n      this._rootTemplate = rootTemplate(owner);\n      this._viewRegistry = viewRegistry;\n      this._destinedForDOM = destinedForDOM;\n      this._roots = [];\n      this._removedRoots = [];\n      this._builder = builder; // resolver is exposed for tests\n\n      var runtimeResolver = this._runtimeResolver = new RuntimeResolver(env.isInteractive);\n      var compileTimeResolver = new CompileTimeResolver(runtimeResolver);\n      var context = this._context = (0, _opcodeCompiler.JitContext)(compileTimeResolver);\n      populateMacros(context.macros);\n      var runtimeEnvironmentDelegate = new EmberEnvironmentDelegate(owner, env.isInteractive);\n      this._runtime = (0, _runtime2.JitRuntime)({\n        appendOperations: env.hasDOM ? new _runtime2.DOMTreeConstruction(document) : new _node.NodeDOMTreeConstruction(document),\n        updateOperations: new _runtime2.DOMChanges(document)\n      }, runtimeEnvironmentDelegate, context, runtimeResolver);\n    }\n\n    get debugRenderTree() {\n      return this._runtime.env.extra.debugRenderTree;\n    } // renderer HOOKS\n\n\n    appendOutletView(view, target) {\n      var definition = createRootOutlet(view);\n\n      this._appendDefinition(view, (0, _runtime2.curry)(definition), target);\n    }\n\n    appendTo(view, target) {\n      var definition = new RootComponentDefinition(view);\n\n      this._appendDefinition(view, (0, _runtime2.curry)(definition), target);\n    }\n\n    _appendDefinition(root, definition, target) {\n      var self = new UnboundRootReference(definition, this._runtime.env);\n      var dynamicScope = new DynamicScope(null, _runtime2.UNDEFINED_REFERENCE);\n      var rootState = new RootState(root, this._runtime, this._context, this._rootTemplate, self, target, dynamicScope, this._builder);\n\n      this._renderRoot(rootState);\n    }\n\n    rerender() {\n      this._scheduleRevalidate();\n    }\n\n    register(view) {\n      var id = (0, _views.getViewId)(view);\n      (true && !(!this._viewRegistry[id]) && (0, _debug.assert)('Attempted to register a view with an id already in use: ' + id, !this._viewRegistry[id]));\n      this._viewRegistry[id] = view;\n    }\n\n    unregister(view) {\n      delete this._viewRegistry[(0, _views.getViewId)(view)];\n    }\n\n    remove(view) {\n      view._transitionTo('destroying');\n\n      this.cleanupRootFor(view);\n\n      if (this._destinedForDOM) {\n        view.trigger('didDestroyElement');\n      }\n    }\n\n    cleanupRootFor(view) {\n      // no need to cleanup roots if we have already been destroyed\n      if (this._destroyed) {\n        return;\n      }\n\n      var roots = this._roots; // traverse in reverse so we can remove items\n      // without mucking up the index\n\n      var i = this._roots.length;\n\n      while (i--) {\n        var root = roots[i];\n\n        if (root.isFor(view)) {\n          root.destroy();\n          roots.splice(i, 1);\n        }\n      }\n    }\n\n    destroy() {\n      if (this._destroyed) {\n        return;\n      }\n\n      this._destroyed = true;\n\n      this._clearAllRoots();\n    }\n\n    getBounds(view) {\n      var bounds = view[BOUNDS];\n      (true && !(Boolean(bounds)) && (0, _debug.assert)('object passed to getBounds must have the BOUNDS symbol as a property', Boolean(bounds)));\n      var parentElement = bounds.parentElement();\n      var firstNode = bounds.firstNode();\n      var lastNode = bounds.lastNode();\n      return {\n        parentElement,\n        firstNode,\n        lastNode\n      };\n    }\n\n    createElement(tagName) {\n      return this._runtime.env.getAppendOperations().createElement(tagName);\n    }\n\n    _renderRoot(root) {\n      var {\n        _roots: roots\n      } = this;\n      roots.push(root);\n\n      if (roots.length === 1) {\n        register(this);\n      }\n\n      this._renderRootsTransaction();\n    }\n\n    _renderRoots() {\n      var {\n        _roots: roots,\n        _runtime: runtime,\n        _removedRoots: removedRoots\n      } = this;\n      var initialRootsLength;\n\n      do {\n        initialRootsLength = roots.length;\n        (0, _runtime2.inTransaction)(runtime.env, () => {\n          // ensure that for the first iteration of the loop\n          // each root is processed\n          for (var i = 0; i < roots.length; i++) {\n            var root = roots[i];\n\n            if (root.destroyed) {\n              // add to the list of roots to be removed\n              // they will be removed from `this._roots` later\n              removedRoots.push(root); // skip over roots that have been marked as destroyed\n\n              continue;\n            } // when processing non-initial reflush loops,\n            // do not process more roots than needed\n\n\n            if (i >= initialRootsLength) {\n              continue;\n            }\n\n            if (true\n            /* DEBUG */\n            ) {\n              // run in an autotracking transaction to prevent backflow errors.\n              // we use `bind` here to avoid creating a closure (and requiring a\n              // hoisted variable).\n              (0, _validator.runInAutotrackingTransaction)(root.render.bind(root));\n            } else {\n              root.render();\n            }\n          }\n\n          this._lastRevision = (0, _validator.valueForTag)(_validator.CURRENT_TAG);\n        });\n      } while (roots.length > initialRootsLength); // remove any roots that were destroyed during this transaction\n\n\n      while (removedRoots.length) {\n        var root = removedRoots.pop();\n        var rootIndex = roots.indexOf(root);\n        roots.splice(rootIndex, 1);\n      }\n\n      if (this._roots.length === 0) {\n        deregister(this);\n      }\n    }\n\n    _renderRootsTransaction() {\n      if (this._inRenderTransaction) {\n        // currently rendering roots, a new root was added and will\n        // be processed by the existing _renderRoots invocation\n        return;\n      } // used to prevent calling _renderRoots again (see above)\n      // while we are actively rendering roots\n\n\n      this._inRenderTransaction = true;\n      var completedWithoutError = false;\n\n      try {\n        this._renderRoots();\n\n        completedWithoutError = true;\n      } finally {\n        if (!completedWithoutError) {\n          this._lastRevision = (0, _validator.valueForTag)(_validator.CURRENT_TAG);\n        }\n\n        this._inRenderTransaction = false;\n      }\n    }\n\n    _clearAllRoots() {\n      var roots = this._roots;\n\n      for (var i = 0; i < roots.length; i++) {\n        var root = roots[i];\n        root.destroy();\n      }\n\n      this._removedRoots.length = 0;\n      this._roots = []; // if roots were present before destroying\n      // deregister this renderer instance\n\n      if (roots.length) {\n        deregister(this);\n      }\n    }\n\n    _scheduleRevalidate() {\n      _runloop.backburner.scheduleOnce('render', this, this._revalidate);\n    }\n\n    _isValid() {\n      return this._destroyed || this._roots.length === 0 || (0, _validator.validateTag)(_validator.CURRENT_TAG, this._lastRevision);\n    }\n\n    _revalidate() {\n      if (this._isValid()) {\n        return;\n      }\n\n      this._renderRootsTransaction();\n    }\n\n  }\n\n  _exports.Renderer = Renderer;\n\n  class InertRenderer extends Renderer {\n    static create({\n      [_owner.OWNER]: owner,\n      document,\n      env,\n      rootTemplate,\n      _viewRegistry,\n      builder\n    }) {\n      return new this(owner, document, env, rootTemplate, _viewRegistry, false, builder);\n    }\n\n    getElement(_view) {\n      throw new Error('Accessing `this.element` is not allowed in non-interactive environments (such as FastBoot).');\n    }\n\n  }\n\n  _exports.InertRenderer = InertRenderer;\n\n  class InteractiveRenderer extends Renderer {\n    static create({\n      [_owner.OWNER]: owner,\n      document,\n      env,\n      rootTemplate,\n      _viewRegistry,\n      builder\n    }) {\n      return new this(owner, document, env, rootTemplate, _viewRegistry, true, builder);\n    }\n\n    getElement(view) {\n      return (0, _views.getViewElement)(view);\n    }\n\n  }\n\n  _exports.InteractiveRenderer = InteractiveRenderer;\n  var TEMPLATES$1 = {};\n\n  function setTemplates(templates) {\n    TEMPLATES$1 = templates;\n  }\n\n  function getTemplates() {\n    return TEMPLATES$1;\n  }\n\n  function getTemplate(name) {\n    if (TEMPLATES$1.hasOwnProperty(name)) {\n      return TEMPLATES$1[name];\n    }\n  }\n\n  function hasTemplate(name) {\n    return TEMPLATES$1.hasOwnProperty(name);\n  }\n\n  function setTemplate(name, template) {\n    return TEMPLATES$1[name] = template;\n  }\n\n  var CAPABILITIES$4 = {\n    dynamicLayout: false,\n    dynamicTag: false,\n    prepareArgs: true,\n    createArgs: true,\n    attributeHook: false,\n    elementHook: false,\n    createCaller: true,\n    dynamicScope: false,\n    updateHook: true,\n    createInstance: true,\n    wrapped: false,\n    willDestroy: false\n  };\n  var EMPTY_POSITIONAL_ARGS$1 = [];\n  (0, _debug.debugFreeze)(EMPTY_POSITIONAL_ARGS$1);\n\n  class InputComponentManager extends InternalManager {\n    getCapabilities() {\n      return CAPABILITIES$4;\n    }\n\n    prepareArgs(_state, args) {\n      (true && !(args.positional.length === 0) && (0, _debug.assert)('The `<Input />` component does not take any positional arguments', args.positional.length === 0));\n      var __ARGS__ = args.named.capture().map;\n      return {\n        positional: EMPTY_POSITIONAL_ARGS$1,\n        named: {\n          __ARGS__: new _reference.ConstReference(__ARGS__),\n          type: args.named.get('type')\n        }\n      };\n    }\n\n    create(env, {\n      ComponentClass,\n      layout\n    }, args, _dynamicScope, caller) {\n      (true && !((0, _validator.isConst)(caller)) && (0, _debug.assert)('caller must be const', (0, _validator.isConst)(caller)));\n      var type = args.named.get('type');\n      var instance = ComponentClass.create({\n        caller: caller.value(),\n        type: type.value()\n      });\n      var state = {\n        env,\n        type,\n        instance\n      };\n\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        env.extra.debugRenderTree.create(state, {\n          type: 'component',\n          name: 'input',\n          args: args.capture(),\n          instance,\n          template: layout\n        });\n      }\n\n      return state;\n    }\n\n    getSelf({\n      env,\n      instance\n    }) {\n      return new _reference.ComponentRootReference(instance, env);\n    }\n\n    getTag() {\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        // returning a const tag skips the update hook (VM BUG?)\n        return (0, _validator.createTag)();\n      } else {\n        // an outlet has no hooks\n        return _validator.CONSTANT_TAG;\n      }\n    }\n\n    didRenderLayout(state, bounds) {\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        state.env.extra.debugRenderTree.didRender(state, bounds);\n      }\n    }\n\n    update(state) {\n      (0, _metal.set)(state.instance, 'type', state.type.value());\n\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        state.env.extra.debugRenderTree.update(state);\n      }\n    }\n\n    didUpdateLayout(state, bounds) {\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        state.env.extra.debugRenderTree.didRender(state, bounds);\n      }\n    }\n\n    getDestructor(state) {\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        return {\n          destroy() {\n            state.env.extra.debugRenderTree.willDestroy(state);\n            state.instance.destroy();\n          }\n\n        };\n      } else {\n        return state.instance;\n      }\n    }\n\n  }\n\n  var InputComponentManagerFactory = owner => {\n    return new InputComponentManager(owner);\n  };\n  /**\n  @module @ember/component\n  */\n\n  /**\n    See [Ember.Templates.components.Input](/ember/release/classes/Ember.Templates.components/methods/Input?anchor=Input).\n  \n    @method input\n    @for Ember.Templates.helpers\n    @param {Hash} options\n    @public\n    */\n\n  /**\n    The `Input` component lets you create an HTML `<input>` element.\n  \n    ```handlebars\n    <Input @value=\"987\" />\n    ```\n  \n    creates an `<input>` element with `type=\"text\"` and value set to 987.\n  \n    ### Text field\n  \n    If no `type` argument is specified, a default of type 'text' is used.\n  \n    ```handlebars\n    Search:\n    <Input @value={{this.searchWord}} />\n    ```\n  \n    In this example, the initial value in the `<input>` will be set to the value of\n    `this.searchWord`. If the user changes the text, the value of `this.searchWord` will also be\n    updated.\n  \n    ### Actions\n  \n    The `Input` component takes a number of arguments with callbacks that are invoked in response to\n    user events.\n  \n    * `enter`\n    * `insert-newline`\n    * `escape-press`\n    * `focus-in`\n    * `focus-out`\n    * `key-down`\n    * `key-press`\n    * `key-up`\n  \n    These callbacks are passed to `Input` like this:\n  \n    ```handlebars\n    <Input @value={{this.searchWord}} @enter={{this.query}} />\n    ```\n  \n    ### `<input>` HTML Attributes to Avoid\n  \n    In most cases, if you want to pass an attribute to the underlying HTML `<input>` element, you\n    can pass the attribute directly, just like any other Ember component.\n  \n    ```handlebars\n    <Input @type=\"text\" size=\"10\" />\n    ```\n  \n    In this example, the `size` attribute will be applied to the underlying `<input>` element in the\n    outputted HTML.\n  \n    However, there are a few attributes where you **must** use the `@` version.\n  \n    * `@type`: This argument is used to control which Ember component is used under the hood\n    * `@value`: The `@value` argument installs a two-way binding onto the element. If you wanted a\n      one-way binding, use `<input>` with the `value` property and the `input` event instead.\n    * `@checked` (for checkboxes): like `@value`, the `@checked` argument installs a two-way binding\n      onto the element. If you wanted a one-way binding, use `<input type=\"checkbox\">` with\n      `checked` and the `input` event instead.\n  \n    ### Extending `TextField`\n  \n    Internally, `<Input @type=\"text\" />` creates an instance of `TextField`, passing arguments from\n    the helper to `TextField`'s `create` method. Subclassing `TextField` is supported but not\n    recommended.\n  \n    See [TextField](/ember/release/classes/TextField)\n  \n    ### Checkbox\n  \n    To create an `<input type=\"checkbox\">`:\n  \n    ```handlebars\n    Emberize Everything:\n    <Input @type=\"checkbox\" @checked={{this.isEmberized}} name=\"isEmberized\" />\n    ```\n  \n    This will bind the checked state of this checkbox to the value of `isEmberized` -- if either one\n    changes, it will be reflected in the other.\n  \n    ### Extending `Checkbox`\n  \n    Internally, `<Input @type=\"checkbox\" />` creates an instance of `Checkbox`. Subclassing\n    `TextField` is supported but not recommended.\n  \n    See [Checkbox](/ember/release/classes/Checkbox)\n  \n    @method Input\n    @for Ember.Templates.components\n    @see {TextField}\n    @see {Checkbox}\n    @param {Hash} options\n    @public\n  */\n\n\n  var Input = _runtime.Object.extend({\n    isCheckbox: (0, _metal.computed)('type', function () {\n      return this.type === 'checkbox';\n    })\n  });\n\n  setManager({\n    factory: InputComponentManagerFactory,\n    internal: true,\n    type: 'component'\n  }, Input);\n\n  Input.toString = () => '@ember/component/input';\n  /**\n  @module ember\n  */\n\n  /**\n    Calls [String.loc](/ember/release/classes/String/methods/loc?anchor=loc) with the\n    provided string. This is a convenient way to localize text within a template.\n    For example:\n  \n    ```javascript\n    Ember.STRINGS = {\n      '_welcome_': 'Bonjour'\n    };\n    ```\n  \n    ```handlebars\n    <div class='message'>\n      {{loc '_welcome_'}}\n    </div>\n    ```\n  \n    ```html\n    <div class='message'>\n      Bonjour\n    </div>\n    ```\n  \n    See [String.loc](/ember/release/classes/String/methods/loc?anchor=loc) for how to\n    set up localized string references.\n  \n    @method loc\n    @for Ember.Templates.helpers\n    @param {String} str The string to format.\n    @see {String#loc}\n    @public\n  */\n\n\n  var loc$1 = helper(function (params) {\n    return _string.loc.apply(null, params\n    /* let the other side handle errors */\n    );\n  });\n  var ComponentTemplate = template({\n    \"id\": \"RLf1peEf\",\n    \"block\": \"{\\\"symbols\\\":[\\\"&default\\\"],\\\"statements\\\":[[18,1,null]],\\\"hasEval\\\":false,\\\"upvars\\\":[]}\",\n    \"meta\": {\n      \"moduleName\": \"packages/@ember/-internals/glimmer/lib/templates/component.hbs\"\n    }\n  });\n  var InputTemplate = template({\n    \"id\": \"ExnzE3OS\",\n    \"block\": \"{\\\"symbols\\\":[\\\"Checkbox\\\",\\\"TextField\\\",\\\"@__ARGS__\\\",\\\"&attrs\\\"],\\\"statements\\\":[[6,[37,2],[[30,[36,1],[\\\"-checkbox\\\"],null],[30,[36,1],[\\\"-text-field\\\"],null]],null,[[\\\"default\\\"],[{\\\"statements\\\":[[6,[37,0],[[32,0,[\\\"isCheckbox\\\"]]],null,[[\\\"default\\\",\\\"else\\\"],[{\\\"statements\\\":[[8,[32,1],[[17,4]],[[\\\"@target\\\",\\\"@__ARGS__\\\"],[[32,0,[\\\"caller\\\"]],[32,3]]],null]],\\\"parameters\\\":[]},{\\\"statements\\\":[[8,[32,2],[[17,4]],[[\\\"@target\\\",\\\"@__ARGS__\\\"],[[32,0,[\\\"caller\\\"]],[32,3]]],null]],\\\"parameters\\\":[]}]]]],\\\"parameters\\\":[1,2]}]]]],\\\"hasEval\\\":false,\\\"upvars\\\":[\\\"if\\\",\\\"component\\\",\\\"let\\\"]}\",\n    \"meta\": {\n      \"moduleName\": \"packages/@ember/-internals/glimmer/lib/templates/input.hbs\"\n    }\n  });\n  var OutletTemplate = template({\n    \"id\": \"vA+C0Wde\",\n    \"block\": \"{\\\"symbols\\\":[],\\\"statements\\\":[[1,[30,[36,1],[[30,[36,0],null,null]],null]]],\\\"hasEval\\\":false,\\\"upvars\\\":[\\\"-outlet\\\",\\\"component\\\"]}\",\n    \"meta\": {\n      \"moduleName\": \"packages/@ember/-internals/glimmer/lib/templates/outlet.hbs\"\n    }\n  });\n  var TOP_LEVEL_NAME = '-top-level';\n  var TOP_LEVEL_OUTLET = 'main';\n\n  class OutletView {\n    constructor(_environment, renderer, owner, template) {\n      this._environment = _environment;\n      this.renderer = renderer;\n      this.owner = owner;\n      this.template = template;\n      var ref = this.ref = new RootOutletReference({\n        outlets: {\n          main: undefined\n        },\n        render: {\n          owner: owner,\n          into: undefined,\n          outlet: TOP_LEVEL_OUTLET,\n          name: TOP_LEVEL_NAME,\n          controller: undefined,\n          model: undefined,\n          template\n        }\n      });\n      this.state = {\n        ref,\n        name: TOP_LEVEL_NAME,\n        outlet: TOP_LEVEL_OUTLET,\n        template,\n        controller: undefined,\n        model: undefined\n      };\n    }\n\n    static extend(injections) {\n      return class extends OutletView {\n        static create(options) {\n          if (options) {\n            return super.create((0, _polyfills.assign)({}, injections, options));\n          } else {\n            return super.create(injections);\n          }\n        }\n\n      };\n    }\n\n    static reopenClass(injections) {\n      (0, _polyfills.assign)(this, injections);\n    }\n\n    static create(options) {\n      var {\n        _environment,\n        renderer,\n        template: templateFactory$$1\n      } = options;\n      var owner = options[_owner.OWNER];\n      var template = templateFactory$$1(owner);\n      return new OutletView(_environment, renderer, owner, template);\n    }\n\n    appendTo(selector) {\n      var target;\n\n      if (this._environment.hasDOM) {\n        target = typeof selector === 'string' ? document.querySelector(selector) : selector;\n      } else {\n        target = selector;\n      }\n\n      (0, _runloop.schedule)('render', this.renderer, 'appendOutletView', this, target);\n    }\n\n    rerender() {\n      /**/\n    }\n\n    setOutletState(state) {\n      this.ref.update(state);\n    }\n\n    destroy() {\n      /**/\n    }\n\n  }\n\n  _exports.OutletView = OutletView;\n\n  function setupApplicationRegistry(registry) {\n    registry.injection('renderer', 'env', '-environment:main'); // because we are using injections we can't use instantiate false\n    // we need to use bind() to copy the function so factory for\n    // association won't leak\n\n    registry.register('service:-dom-builder', {\n      create({\n        bootOptions\n      }) {\n        var {\n          _renderMode\n        } = bootOptions;\n\n        switch (_renderMode) {\n          case 'serialize':\n            return _node.serializeBuilder.bind(null);\n\n          case 'rehydrate':\n            return _runtime2.rehydrationBuilder.bind(null);\n\n          default:\n            return _runtime2.clientBuilder.bind(null);\n        }\n      }\n\n    });\n    registry.injection('service:-dom-builder', 'bootOptions', '-environment:main');\n    registry.injection('renderer', 'builder', 'service:-dom-builder');\n    registry.register((0, _container.privatize)`template:-root`, RootTemplate);\n    registry.injection('renderer', 'rootTemplate', (0, _container.privatize)`template:-root`);\n    registry.register('renderer:-dom', InteractiveRenderer);\n    registry.register('renderer:-inert', InertRenderer);\n    registry.injection('renderer', 'document', 'service:-document');\n  }\n\n  function setupEngineRegistry(registry) {\n    registry.optionsForType('template', {\n      instantiate: false\n    });\n    registry.register('view:-outlet', OutletView);\n    registry.register('template:-outlet', OutletTemplate);\n    registry.injection('view:-outlet', 'template', 'template:-outlet');\n    registry.register((0, _container.privatize)`template:components/-default`, ComponentTemplate);\n    registry.optionsForType('helper', {\n      instantiate: false\n    });\n    registry.register('helper:loc', loc$1);\n    registry.register('component:-text-field', TextField);\n    registry.register('component:-checkbox', Checkbox);\n    registry.register('component:link-to', LinkComponent);\n    registry.register('component:input', Input);\n    registry.register('template:components/input', InputTemplate);\n    registry.register('component:textarea', TextArea);\n\n    if (!_environment2.ENV._TEMPLATE_ONLY_GLIMMER_COMPONENTS) {\n      registry.register((0, _container.privatize)`component:-default`, Component);\n    }\n  }\n\n  function setComponentManager(stringOrFunction, obj) {\n    var factory;\n\n    if (_deprecatedFeatures.COMPONENT_MANAGER_STRING_LOOKUP && typeof stringOrFunction === 'string') {\n      (true && !(false) && (0, _debug.deprecate)('Passing the name of the component manager to \"setupComponentManager\" is deprecated. Please pass a function that produces an instance of the manager.', false, {\n        id: 'deprecate-string-based-component-manager',\n        until: '4.0.0',\n        url: 'https://emberjs.com/deprecations/v3.x/#toc_component-manager-string-lookup'\n      }));\n\n      factory = function (owner) {\n        return owner.lookup(`component-manager:${stringOrFunction}`);\n      };\n    } else {\n      factory = stringOrFunction;\n    }\n\n    return setManager({\n      factory,\n      internal: false,\n      type: 'component'\n    }, obj);\n  }\n\n  function getComponentManager(obj) {\n    var wrapper = getManager(obj);\n\n    if (wrapper && !wrapper.internal && wrapper.type === 'component') {\n      return wrapper.factory;\n    } else {\n      return undefined;\n    }\n  }\n  /**\n    [Glimmer](https://github.com/tildeio/glimmer) is a templating engine used by Ember.js that is compatible with a subset of the [Handlebars](http://handlebarsjs.com/) syntax.\n  \n    ### Showing a property\n  \n    Templates manage the flow of an application's UI, and display state (through\n    the DOM) to a user. For example, given a component with the property \"name\",\n    that component's template can use the name in several ways:\n  \n    ```app/components/person-profile.js\n    import Component from '@ember/component';\n  \n    export default Component.extend({\n      name: 'Jill'\n    });\n    ```\n  \n    ```app/components/person-profile.hbs\n    {{this.name}}\n    <div>{{this.name}}</div>\n    <span data-name={{this.name}}></span>\n    ```\n  \n    Any time the \"name\" property on the component changes, the DOM will be\n    updated.\n  \n    Properties can be chained as well:\n  \n    ```handlebars\n    {{@aUserModel.name}}\n    <div>{{@listOfUsers.firstObject.name}}</div>\n    ```\n  \n    ### Using Ember helpers\n  \n    When content is passed in mustaches `{{}}`, Ember will first try to find a helper\n    or component with that name. For example, the `if` helper:\n  \n    ```app/components/person-profile.hbs\n    {{if this.name \"I have a name\" \"I have no name\"}}\n    <span data-has-name={{if this.name true}}></span>\n    ```\n  \n    The returned value is placed where the `{{}}` is called. The above style is\n    called \"inline\". A second style of helper usage is called \"block\". For example:\n  \n    ```handlebars\n    {{#if this.name}}\n      I have a name\n    {{else}}\n      I have no name\n    {{/if}}\n    ```\n  \n    The block form of helpers allows you to control how the UI is created based\n    on the values of properties.\n    A third form of helper is called \"nested\". For example here the concat\n    helper will add \" Doe\" to a displayed name if the person has no last name:\n  \n    ```handlebars\n    <span data-name={{concat this.firstName (\n      if this.lastName (concat \" \" this.lastName) \"Doe\"\n    )}}></span>\n    ```\n  \n    Ember's built-in helpers are described under the [Ember.Templates.helpers](/ember/release/classes/Ember.Templates.helpers)\n    namespace. Documentation on creating custom helpers can be found under\n    [helper](/ember/release/functions/@ember%2Fcomponent%2Fhelper/helper) (or\n    under [Helper](/ember/release/classes/Helper) if a helper requires access to\n    dependency injection).\n  \n    ### Invoking a Component\n  \n    Ember components represent state to the UI of an application. Further\n    reading on components can be found under [Component](/ember/release/classes/Component).\n  \n    @module @ember/component\n    @main @ember/component\n    @public\n   */\n\n});","define(\"@ember/-internals/meta/index\", [\"exports\", \"@ember/-internals/meta/lib/meta\"], function (_exports, _meta) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"counters\", {\n    enumerable: true,\n    get: function () {\n      return _meta.counters;\n    }\n  });\n  Object.defineProperty(_exports, \"Meta\", {\n    enumerable: true,\n    get: function () {\n      return _meta.Meta;\n    }\n  });\n  Object.defineProperty(_exports, \"meta\", {\n    enumerable: true,\n    get: function () {\n      return _meta.meta;\n    }\n  });\n  Object.defineProperty(_exports, \"peekMeta\", {\n    enumerable: true,\n    get: function () {\n      return _meta.peekMeta;\n    }\n  });\n  Object.defineProperty(_exports, \"setMeta\", {\n    enumerable: true,\n    get: function () {\n      return _meta.setMeta;\n    }\n  });\n  Object.defineProperty(_exports, \"UNDEFINED\", {\n    enumerable: true,\n    get: function () {\n      return _meta.UNDEFINED;\n    }\n  });\n});","define(\"@ember/-internals/meta/lib/meta\", [\"exports\", \"@ember/-internals/utils\", \"@ember/debug\"], function (_exports, _utils, _debug) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.setMeta = setMeta;\n  _exports.peekMeta = peekMeta;\n  _exports.counters = _exports.meta = _exports.Meta = _exports.UNDEFINED = void 0;\n  var objectPrototype = Object.prototype;\n  var counters;\n  _exports.counters = counters;\n\n  if (true\n  /* DEBUG */\n  ) {\n    _exports.counters = counters = {\n      peekCalls: 0,\n      peekPrototypeWalks: 0,\n      setCalls: 0,\n      deleteCalls: 0,\n      metaCalls: 0,\n      metaInstantiated: 0,\n      matchingListenersCalls: 0,\n      observerEventsCalls: 0,\n      addToListenersCalls: 0,\n      removeFromListenersCalls: 0,\n      removeAllListenersCalls: 0,\n      listenersInherited: 0,\n      listenersFlattened: 0,\n      parentListenersUsed: 0,\n      flattenedListenersCalls: 0,\n      reopensAfterFlatten: 0,\n      readableLazyChainsCalls: 0,\n      writableLazyChainsCalls: 0\n    };\n  }\n  /**\n  @module ember\n  */\n\n\n  var UNDEFINED = (0, _utils.symbol)('undefined');\n  _exports.UNDEFINED = UNDEFINED;\n  var currentListenerVersion = 1;\n\n  class Meta {\n    constructor(obj) {\n      this._listenersVersion = 1;\n      this._inheritedEnd = -1;\n      this._flattenedVersion = 0;\n\n      if (true\n      /* DEBUG */\n      ) {\n        counters.metaInstantiated++;\n        this._values = undefined;\n      }\n\n      this._parent = undefined;\n      this._descriptors = undefined;\n      this._mixins = undefined; // initial value for all flags right now is false\n      // see FLAGS const for detailed list of flags used\n\n      this._flags = 0\n      /* NONE */\n      ; // used only internally\n\n      this.source = obj;\n      this.proto = obj.constructor === undefined ? undefined : obj.constructor.prototype;\n      this._listeners = undefined;\n    }\n\n    get parent() {\n      var parent = this._parent;\n\n      if (parent === undefined) {\n        var proto = getPrototypeOf(this.source);\n        this._parent = parent = proto === null || proto === objectPrototype ? null : meta(proto);\n      }\n\n      return parent;\n    }\n\n    setInitializing() {\n      this._flags |= 8\n      /* INITIALIZING */\n      ;\n    }\n\n    unsetInitializing() {\n      this._flags ^= 8\n      /* INITIALIZING */\n      ;\n    }\n\n    isInitializing() {\n      return this._hasFlag(8\n      /* INITIALIZING */\n      );\n    }\n\n    isPrototypeMeta(obj) {\n      return this.proto === this.source && this.source === obj;\n    }\n\n    destroy() {\n      if (true\n      /* DEBUG */\n      ) {\n        counters.deleteCalls++;\n      }\n\n      if (this.isMetaDestroyed()) {\n        return;\n      }\n\n      this.setMetaDestroyed();\n    }\n\n    isSourceDestroying() {\n      return this._hasFlag(1\n      /* SOURCE_DESTROYING */\n      );\n    }\n\n    setSourceDestroying() {\n      this._flags |= 1\n      /* SOURCE_DESTROYING */\n      ;\n    }\n\n    isSourceDestroyed() {\n      return this._hasFlag(2\n      /* SOURCE_DESTROYED */\n      );\n    }\n\n    setSourceDestroyed() {\n      this._flags |= 2\n      /* SOURCE_DESTROYED */\n      ;\n    }\n\n    isMetaDestroyed() {\n      return this._hasFlag(4\n      /* META_DESTROYED */\n      );\n    }\n\n    setMetaDestroyed() {\n      this._flags |= 4\n      /* META_DESTROYED */\n      ;\n    }\n\n    _hasFlag(flag) {\n      return (this._flags & flag) === flag;\n    }\n\n    _getOrCreateOwnMap(key) {\n      return this[key] || (this[key] = Object.create(null));\n    }\n\n    _getOrCreateOwnSet(key) {\n      return this[key] || (this[key] = new Set());\n    }\n\n    _findInheritedMap(key, subkey) {\n      var pointer = this;\n\n      while (pointer !== null) {\n        var map = pointer[key];\n\n        if (map !== undefined) {\n          var value = map.get(subkey);\n\n          if (value !== undefined) {\n            return value;\n          }\n        }\n\n        pointer = pointer.parent;\n      }\n    }\n\n    _hasInInheritedSet(key, value) {\n      var pointer = this;\n\n      while (pointer !== null) {\n        var set = pointer[key];\n\n        if (set !== undefined && set.has(value)) {\n          return true;\n        }\n\n        pointer = pointer.parent;\n      }\n\n      return false;\n    }\n\n    writableLazyChainsFor(key) {\n      if (true\n      /* DEBUG */\n      ) {\n        counters.writableLazyChainsCalls++;\n      }\n\n      var lazyChains = this._getOrCreateOwnMap('_lazyChains');\n\n      if (!(key in lazyChains)) {\n        lazyChains[key] = Object.create(null);\n      }\n\n      return lazyChains[key];\n    }\n\n    readableLazyChainsFor(key) {\n      if (true\n      /* DEBUG */\n      ) {\n        counters.readableLazyChainsCalls++;\n      }\n\n      var lazyChains = this._lazyChains;\n\n      if (lazyChains !== undefined) {\n        return lazyChains[key];\n      }\n\n      return undefined;\n    }\n\n    addMixin(mixin) {\n      (true && !(!this.isMetaDestroyed()) && (0, _debug.assert)(this.isMetaDestroyed() ? `Cannot add mixins of \\`${(0, _utils.toString)(mixin)}\\` on \\`${(0, _utils.toString)(this.source)}\\` call addMixin after it has been destroyed.` : '', !this.isMetaDestroyed()));\n\n      var set = this._getOrCreateOwnSet('_mixins');\n\n      set.add(mixin);\n    }\n\n    hasMixin(mixin) {\n      return this._hasInInheritedSet('_mixins', mixin);\n    }\n\n    forEachMixins(fn) {\n      var pointer = this;\n      var seen;\n\n      while (pointer !== null) {\n        var set = pointer._mixins;\n\n        if (set !== undefined) {\n          seen = seen === undefined ? new Set() : seen; // TODO cleanup typing here\n\n          set.forEach(mixin => {\n            if (!seen.has(mixin)) {\n              seen.add(mixin);\n              fn(mixin);\n            }\n          });\n        }\n\n        pointer = pointer.parent;\n      }\n    }\n\n    writeDescriptors(subkey, value) {\n      (true && !(!this.isMetaDestroyed()) && (0, _debug.assert)(this.isMetaDestroyed() ? `Cannot update descriptors for \\`${subkey}\\` on \\`${(0, _utils.toString)(this.source)}\\` after it has been destroyed.` : '', !this.isMetaDestroyed()));\n      var map = this._descriptors || (this._descriptors = new Map());\n      map.set(subkey, value);\n    }\n\n    peekDescriptors(subkey) {\n      var possibleDesc = this._findInheritedMap('_descriptors', subkey);\n\n      return possibleDesc === UNDEFINED ? undefined : possibleDesc;\n    }\n\n    removeDescriptors(subkey) {\n      this.writeDescriptors(subkey, UNDEFINED);\n    }\n\n    forEachDescriptors(fn) {\n      var pointer = this;\n      var seen;\n\n      while (pointer !== null) {\n        var map = pointer._descriptors;\n\n        if (map !== undefined) {\n          seen = seen === undefined ? new Set() : seen;\n          map.forEach((value, key) => {\n            if (!seen.has(key)) {\n              seen.add(key);\n\n              if (value !== UNDEFINED) {\n                fn(key, value);\n              }\n            }\n          });\n        }\n\n        pointer = pointer.parent;\n      }\n    }\n\n    addToListeners(eventName, target, method, once, sync) {\n      if (true\n      /* DEBUG */\n      ) {\n        counters.addToListenersCalls++;\n      }\n\n      this.pushListener(eventName, target, method, once ? 1\n      /* ONCE */\n      : 0\n      /* ADD */\n      , sync);\n    }\n\n    removeFromListeners(eventName, target, method) {\n      if (true\n      /* DEBUG */\n      ) {\n        counters.removeFromListenersCalls++;\n      }\n\n      this.pushListener(eventName, target, method, 2\n      /* REMOVE */\n      );\n    }\n\n    pushListener(event, target, method, kind, sync = false) {\n      var listeners = this.writableListeners();\n      var i = indexOfListener(listeners, event, target, method); // remove if found listener was inherited\n\n      if (i !== -1 && i < this._inheritedEnd) {\n        listeners.splice(i, 1);\n        this._inheritedEnd--;\n        i = -1;\n      } // if not found, push. Note that we must always push if a listener is not\n      // found, even in the case of a function listener remove, because we may be\n      // attempting to add or remove listeners _before_ flattening has occurred.\n\n\n      if (i === -1) {\n        (true && !(!(this.isPrototypeMeta(this.source) && typeof method === 'function')) && (0, _debug.assert)('You cannot add function listeners to prototypes. Convert the listener to a string listener, or add it to the instance instead.', !(this.isPrototypeMeta(this.source) && typeof method === 'function')));\n        (true && !(!(!this.isPrototypeMeta(this.source) && typeof method === 'function' && kind === 2\n        /* REMOVE */\n        )) && (0, _debug.assert)('You attempted to remove a function listener which did not exist on the instance, which means you may have attempted to remove it before it was added.', !(!this.isPrototypeMeta(this.source) && typeof method === 'function' && kind === 2)));\n        listeners.push({\n          event,\n          target,\n          method,\n          kind,\n          sync\n        });\n      } else {\n        var listener = listeners[i]; // If the listener is our own listener and we are trying to remove it, we\n        // want to splice it out entirely so we don't hold onto a reference.\n\n        if (kind === 2\n        /* REMOVE */\n        && listener.kind !== 2\n        /* REMOVE */\n        ) {\n            listeners.splice(i, 1);\n          } else {\n          (true && !(!(listener.kind === 0\n          /* ADD */\n          && kind === 0\n          /* ADD */\n          && listener.sync !== sync)) && (0, _debug.assert)(`You attempted to add an observer for the same method on '${event.split(':')[0]}' twice to ${target} as both sync and async. Observers must be either sync or async, they cannot be both. This is likely a mistake, you should either remove the code that added the observer a second time, or update it to always be sync or async. The method was ${method}.`, !(listener.kind === 0 && kind === 0 && listener.sync !== sync))); // update own listener\n\n          listener.kind = kind;\n          listener.sync = sync;\n        }\n      }\n    }\n\n    writableListeners() {\n      // Check if we need to invalidate and reflatten. We need to do this if we\n      // have already flattened (flattened version is the current version) and\n      // we are either writing to a prototype meta OR we have never inherited, and\n      // may have cached the parent's listeners.\n      if (this._flattenedVersion === currentListenerVersion && (this.source === this.proto || this._inheritedEnd === -1)) {\n        if (true\n        /* DEBUG */\n        ) {\n          counters.reopensAfterFlatten++;\n        }\n\n        currentListenerVersion++;\n      } // Inherited end has not been set, then we have never created our own\n      // listeners, but may have cached the parent's\n\n\n      if (this._inheritedEnd === -1) {\n        this._inheritedEnd = 0;\n        this._listeners = [];\n      }\n\n      return this._listeners;\n    }\n    /**\n      Flattening is based on a global revision counter. If the revision has\n      bumped it means that somewhere in a class inheritance chain something has\n      changed, so we need to reflatten everything. This can only happen if:\n         1. A meta has been flattened (listener has been called)\n      2. The meta is a prototype meta with children who have inherited its\n         listeners\n      3. A new listener is subsequently added to the meta (e.g. via `.reopen()`)\n         This is a very rare occurrence, so while the counter is global it shouldn't\n      be updated very often in practice.\n    */\n\n\n    flattenedListeners() {\n      if (true\n      /* DEBUG */\n      ) {\n        counters.flattenedListenersCalls++;\n      }\n\n      if (this._flattenedVersion < currentListenerVersion) {\n        if (true\n        /* DEBUG */\n        ) {\n          counters.listenersFlattened++;\n        }\n\n        var parent = this.parent;\n\n        if (parent !== null) {\n          // compute\n          var parentListeners = parent.flattenedListeners();\n\n          if (parentListeners !== undefined) {\n            if (this._listeners === undefined) {\n              // If this instance doesn't have any of its own listeners (writableListeners\n              // has never been called) then we don't need to do any flattening, return\n              // the parent's listeners instead.\n              if (true\n              /* DEBUG */\n              ) {\n                counters.parentListenersUsed++;\n              }\n\n              this._listeners = parentListeners;\n            } else {\n              var listeners = this._listeners;\n\n              if (this._inheritedEnd > 0) {\n                listeners.splice(0, this._inheritedEnd);\n                this._inheritedEnd = 0;\n              }\n\n              for (var i = 0; i < parentListeners.length; i++) {\n                var listener = parentListeners[i];\n                var index = indexOfListener(listeners, listener.event, listener.target, listener.method);\n\n                if (index === -1) {\n                  if (true\n                  /* DEBUG */\n                  ) {\n                    counters.listenersInherited++;\n                  }\n\n                  listeners.unshift(listener);\n                  this._inheritedEnd++;\n                }\n              }\n            }\n          }\n        }\n\n        this._flattenedVersion = currentListenerVersion;\n      }\n\n      return this._listeners;\n    }\n\n    matchingListeners(eventName) {\n      var listeners = this.flattenedListeners();\n      var result;\n\n      if (true\n      /* DEBUG */\n      ) {\n        counters.matchingListenersCalls++;\n      }\n\n      if (listeners !== undefined) {\n        for (var index = 0; index < listeners.length; index++) {\n          var listener = listeners[index]; // REMOVE listeners are placeholders that tell us not to\n          // inherit, so they never match. Only ADD and ONCE can match.\n\n          if (listener.event === eventName && (listener.kind === 0\n          /* ADD */\n          || listener.kind === 1\n          /* ONCE */\n          )) {\n            if (result === undefined) {\n              // we create this array only after we've found a listener that\n              // matches to avoid allocations when no matches are found.\n              result = [];\n            }\n\n            result.push(listener.target, listener.method, listener.kind === 1\n            /* ONCE */\n            );\n          }\n        }\n      }\n\n      return result;\n    }\n\n    observerEvents() {\n      var listeners = this.flattenedListeners();\n      var result;\n\n      if (true\n      /* DEBUG */\n      ) {\n        counters.observerEventsCalls++;\n      }\n\n      if (listeners !== undefined) {\n        for (var index = 0; index < listeners.length; index++) {\n          var listener = listeners[index]; // REMOVE listeners are placeholders that tell us not to\n          // inherit, so they never match. Only ADD and ONCE can match.\n\n          if ((listener.kind === 0\n          /* ADD */\n          || listener.kind === 1\n          /* ONCE */\n          ) && listener.event.indexOf(':change') !== -1) {\n            if (result === undefined) {\n              // we create this array only after we've found a listener that\n              // matches to avoid allocations when no matches are found.\n              result = [];\n            }\n\n            result.push(listener);\n          }\n        }\n      }\n\n      return result;\n    }\n\n  }\n\n  _exports.Meta = Meta;\n  var getPrototypeOf = Object.getPrototypeOf;\n  var metaStore = new WeakMap();\n\n  function setMeta(obj, meta) {\n    (true && !(obj !== null) && (0, _debug.assert)('Cannot call `setMeta` on null', obj !== null));\n    (true && !(obj !== undefined) && (0, _debug.assert)('Cannot call `setMeta` on undefined', obj !== undefined));\n    (true && !(typeof obj === 'object' || typeof obj === 'function') && (0, _debug.assert)(`Cannot call \\`setMeta\\` on ${typeof obj}`, typeof obj === 'object' || typeof obj === 'function'));\n\n    if (true\n    /* DEBUG */\n    ) {\n      counters.setCalls++;\n    }\n\n    metaStore.set(obj, meta);\n  }\n\n  function peekMeta(obj) {\n    (true && !(obj !== null) && (0, _debug.assert)('Cannot call `peekMeta` on null', obj !== null));\n    (true && !(obj !== undefined) && (0, _debug.assert)('Cannot call `peekMeta` on undefined', obj !== undefined));\n    (true && !(typeof obj === 'object' || typeof obj === 'function') && (0, _debug.assert)(`Cannot call \\`peekMeta\\` on ${typeof obj}`, typeof obj === 'object' || typeof obj === 'function'));\n\n    if (true\n    /* DEBUG */\n    ) {\n      counters.peekCalls++;\n    }\n\n    var meta = metaStore.get(obj);\n\n    if (meta !== undefined) {\n      return meta;\n    }\n\n    var pointer = getPrototypeOf(obj);\n\n    while (pointer !== null) {\n      if (true\n      /* DEBUG */\n      ) {\n        counters.peekPrototypeWalks++;\n      }\n\n      meta = metaStore.get(pointer);\n\n      if (meta !== undefined) {\n        if (meta.proto !== pointer) {\n          // The meta was a prototype meta which was not marked as initializing.\n          // This can happen when a prototype chain was created manually via\n          // Object.create() and the source object does not have a constructor.\n          meta.proto = pointer;\n        }\n\n        return meta;\n      }\n\n      pointer = getPrototypeOf(pointer);\n    }\n\n    return null;\n  }\n  /**\n    Retrieves the meta hash for an object. If `writable` is true ensures the\n    hash is writable for this object as well.\n  \n    The meta object contains information about computed property descriptors as\n    well as any watched properties and other information. You generally will\n    not access this information directly but instead work with higher level\n    methods that manipulate this hash indirectly.\n  \n    @method meta\n    @for Ember\n    @private\n  \n    @param {Object} obj The object to retrieve meta for\n    @param {Boolean} [writable=true] Pass `false` if you do not intend to modify\n      the meta hash, allowing the method to avoid making an unnecessary copy.\n    @return {Object} the meta hash for an object\n  */\n\n\n  var meta = function meta(obj) {\n    (true && !(obj !== null) && (0, _debug.assert)('Cannot call `meta` on null', obj !== null));\n    (true && !(obj !== undefined) && (0, _debug.assert)('Cannot call `meta` on undefined', obj !== undefined));\n    (true && !(typeof obj === 'object' || typeof obj === 'function') && (0, _debug.assert)(`Cannot call \\`meta\\` on ${typeof obj}`, typeof obj === 'object' || typeof obj === 'function'));\n\n    if (true\n    /* DEBUG */\n    ) {\n      counters.metaCalls++;\n    }\n\n    var maybeMeta = peekMeta(obj); // remove this code, in-favor of explicit parent\n\n    if (maybeMeta !== null && maybeMeta.source === obj) {\n      return maybeMeta;\n    }\n\n    var newMeta = new Meta(obj);\n    setMeta(obj, newMeta);\n    return newMeta;\n  };\n\n  _exports.meta = meta;\n\n  if (true\n  /* DEBUG */\n  ) {\n    meta._counters = counters;\n  }\n\n  function indexOfListener(listeners, event, target, method) {\n    for (var i = listeners.length - 1; i >= 0; i--) {\n      var listener = listeners[i];\n\n      if (listener.event === event && listener.target === target && listener.method === method) {\n        return i;\n      }\n    }\n\n    return -1;\n  }\n});","define(\"@ember/-internals/metal/index\", [\"exports\", \"@ember/-internals/meta\", \"@ember/-internals/utils\", \"@ember/debug\", \"@ember/-internals/environment\", \"@ember/runloop\", \"@glimmer/validator\", \"@ember/polyfills\", \"@ember/error\", \"ember/version\", \"@ember/-internals/meta/lib/meta\", \"@ember/deprecated-features\", \"@ember/-internals/owner\"], function (_exports, _meta2, _utils, _debug, _environment, _runloop, _validator, _polyfills, _error, _version, _meta3, _deprecatedFeatures, _owner) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.computed = computed;\n  _exports.isComputed = isComputed;\n  _exports.getCacheFor = getCacheFor;\n  _exports.getCachedValueFor = getCachedValueFor;\n  _exports.peekCacheFor = peekCacheFor;\n  _exports.alias = alias;\n  _exports.deprecateProperty = deprecateProperty;\n  _exports._getPath = _getPath;\n  _exports.get = get;\n  _exports.getWithDefault = getWithDefault;\n  _exports.set = set;\n  _exports.trySet = trySet;\n  _exports.objectAt = objectAt;\n  _exports.replace = replace;\n  _exports.replaceInNativeArray = replaceInNativeArray;\n  _exports.addArrayObserver = addArrayObserver;\n  _exports.removeArrayObserver = removeArrayObserver;\n  _exports.arrayContentWillChange = arrayContentWillChange;\n  _exports.arrayContentDidChange = arrayContentDidChange;\n  _exports.eachProxyArrayWillChange = eachProxyArrayWillChange;\n  _exports.eachProxyArrayDidChange = eachProxyArrayDidChange;\n  _exports.addListener = addListener;\n  _exports.hasListeners = hasListeners;\n  _exports.on = on;\n  _exports.removeListener = removeListener;\n  _exports.sendEvent = sendEvent;\n  _exports.isNone = isNone;\n  _exports.isEmpty = isEmpty;\n  _exports.isBlank = isBlank;\n  _exports.isPresent = isPresent;\n  _exports.beginPropertyChanges = beginPropertyChanges;\n  _exports.changeProperties = changeProperties;\n  _exports.endPropertyChanges = endPropertyChanges;\n  _exports.notifyPropertyChange = notifyPropertyChange;\n  _exports.defineProperty = defineProperty;\n  _exports.isElementDescriptor = isElementDescriptor;\n  _exports.nativeDescDecorator = nativeDescDecorator;\n  _exports.descriptorForDecorator = descriptorForDecorator;\n  _exports.descriptorForProperty = descriptorForProperty;\n  _exports.isClassicDecorator = isClassicDecorator;\n  _exports.setClassicDecorator = setClassicDecorator;\n  _exports.getChainTagsForKey = getChainTagsForKey;\n  _exports.getProperties = getProperties;\n  _exports.setProperties = setProperties;\n  _exports.expandProperties = expandProperties;\n  _exports.destroy = destroy;\n  _exports.addObserver = addObserver;\n  _exports.activateObserver = activateObserver;\n  _exports.removeObserver = removeObserver;\n  _exports.flushAsyncObservers = flushAsyncObservers;\n  _exports.mixin = mixin;\n  _exports.observer = observer;\n  _exports.applyMixin = applyMixin;\n  _exports.inject = inject;\n  _exports.tagForProperty = tagForProperty;\n  _exports.tagForObject = tagForObject;\n  _exports.markObjectAsDirty = markObjectAsDirty;\n  _exports.tracked = tracked;\n  _exports.addNamespace = addNamespace;\n  _exports.classToString = classToString;\n  _exports.findNamespace = findNamespace;\n  _exports.findNamespaces = findNamespaces;\n  _exports.processNamespace = processNamespace;\n  _exports.processAllNamespaces = processAllNamespaces;\n  _exports.removeNamespace = removeNamespace;\n  _exports.isNamespaceSearchDisabled = isSearchDisabled;\n  _exports.setNamespaceSearchDisabled = setSearchDisabled;\n  _exports.NAMESPACES_BY_ID = _exports.NAMESPACES = _exports.CUSTOM_TAG_FOR = _exports.DEBUG_INJECTION_FUNCTIONS = _exports.aliasMethod = _exports.Mixin = _exports.SYNC_OBSERVERS = _exports.ASYNC_OBSERVERS = _exports.Libraries = _exports.libraries = _exports.PROPERTY_DID_CHANGE = _exports.PROXY_CONTENT = _exports.ComputedProperty = _exports._globalsComputed = void 0;\n  var COMPUTED_PROPERTY_CACHED_VALUES = new WeakMap();\n  var COMPUTED_PROPERTY_LAST_REVISION = new WeakMap();\n\n  function getCacheFor(obj) {\n    var cache = COMPUTED_PROPERTY_CACHED_VALUES.get(obj);\n\n    if (cache === undefined) {\n      cache = new Map();\n      COMPUTED_PROPERTY_CACHED_VALUES.set(obj, cache);\n    }\n\n    return cache;\n  }\n  /**\n    Returns the cached value for a property, if one exists.\n    This can be useful for peeking at the value of a computed\n    property that is generated lazily, without accidentally causing\n    it to be created.\n  \n    @method cacheFor\n    @static\n    @for @ember/object/internals\n    @param {Object} obj the object whose property you want to check\n    @param {String} key the name of the property whose cached value you want\n      to return\n    @return {Object} the cached value\n    @public\n  */\n\n\n  function getCachedValueFor(obj, key) {\n    var cache = COMPUTED_PROPERTY_CACHED_VALUES.get(obj);\n\n    if (cache !== undefined) {\n      return cache.get(key);\n    }\n  }\n\n  function setLastRevisionFor(obj, key, revision) {\n    var cache = COMPUTED_PROPERTY_LAST_REVISION.get(obj);\n\n    if (cache === undefined) {\n      cache = new Map();\n      COMPUTED_PROPERTY_LAST_REVISION.set(obj, cache);\n    }\n\n    cache.set(key, revision);\n  }\n\n  function getLastRevisionFor(obj, key) {\n    var cache = COMPUTED_PROPERTY_LAST_REVISION.get(obj);\n\n    if (cache === undefined) {\n      return 0;\n    } else {\n      var revision = cache.get(key);\n      return revision === undefined ? 0 : revision;\n    }\n  }\n\n  function peekCacheFor(obj) {\n    return COMPUTED_PROPERTY_CACHED_VALUES.get(obj);\n  }\n  /**\n  @module @ember/object\n  */\n\n  /*\n    The event system uses a series of nested hashes to store listeners on an\n    object. When a listener is registered, or when an event arrives, these\n    hashes are consulted to determine which target and action pair to invoke.\n  \n    The hashes are stored in the object's meta hash, and look like this:\n  \n        // Object's meta hash\n        {\n          listeners: {       // variable name: `listenerSet`\n            \"foo:change\": [ // variable name: `actions`\n              target, method, once\n            ]\n          }\n        }\n  \n  */\n\n  /**\n    Add an event listener\n  \n    @method addListener\n    @static\n    @for @ember/object/events\n    @param obj\n    @param {String} eventName\n    @param {Object|Function} target A target object or a function\n    @param {Function|String} method A function or the name of a function to be called on `target`\n    @param {Boolean} once A flag whether a function should only be called once\n    @public\n  */\n\n\n  function addListener(obj, eventName, target, method, once, sync = true) {\n    (true && !(Boolean(obj) && Boolean(eventName)) && (0, _debug.assert)('You must pass at least an object and event name to addListener', Boolean(obj) && Boolean(eventName)));\n\n    if (!method && 'function' === typeof target) {\n      method = target;\n      target = null;\n    }\n\n    (0, _meta2.meta)(obj).addToListeners(eventName, target, method, once === true, sync);\n  }\n  /**\n    Remove an event listener\n  \n    Arguments should match those passed to `addListener`.\n  \n    @method removeListener\n    @static\n    @for @ember/object/events\n    @param obj\n    @param {String} eventName\n    @param {Object|Function} target A target object or a function\n    @param {Function|String} method A function or the name of a function to be called on `target`\n    @public\n  */\n\n\n  function removeListener(obj, eventName, targetOrFunction, functionOrName) {\n    (true && !(Boolean(obj) && Boolean(eventName) && (typeof targetOrFunction === 'function' || typeof targetOrFunction === 'object' && Boolean(functionOrName))) && (0, _debug.assert)('You must pass at least an object, event name, and method or target and method/method name to removeListener', Boolean(obj) && Boolean(eventName) && (typeof targetOrFunction === 'function' || typeof targetOrFunction === 'object' && Boolean(functionOrName))));\n    var target, method;\n\n    if (typeof targetOrFunction === 'object') {\n      target = targetOrFunction;\n      method = functionOrName;\n    } else {\n      target = null;\n      method = targetOrFunction;\n    }\n\n    var m = (0, _meta2.meta)(obj);\n    m.removeFromListeners(eventName, target, method);\n  }\n  /**\n    Send an event. The execution of suspended listeners\n    is skipped, and once listeners are removed. A listener without\n    a target is executed on the passed object. If an array of actions\n    is not passed, the actions stored on the passed object are invoked.\n  \n    @method sendEvent\n    @static\n    @for @ember/object/events\n    @param obj\n    @param {String} eventName\n    @param {Array} params Optional parameters for each listener.\n    @return {Boolean} if the event was delivered to one or more actions\n    @public\n  */\n\n\n  function sendEvent(obj, eventName, params, actions, _meta) {\n    if (actions === undefined) {\n      var meta$$1 = _meta === undefined ? (0, _meta2.peekMeta)(obj) : _meta;\n      actions = meta$$1 !== null ? meta$$1.matchingListeners(eventName) : undefined;\n    }\n\n    if (actions === undefined || actions.length === 0) {\n      return false;\n    }\n\n    for (var i = actions.length - 3; i >= 0; i -= 3) {\n      // looping in reverse for once listeners\n      var target = actions[i];\n      var method = actions[i + 1];\n      var once = actions[i + 2];\n\n      if (!method) {\n        continue;\n      }\n\n      if (once) {\n        removeListener(obj, eventName, target, method);\n      }\n\n      if (!target) {\n        target = obj;\n      }\n\n      if ('string' === typeof method) {\n        method = target[method];\n      }\n\n      method.apply(target, params);\n    }\n\n    return true;\n  }\n  /**\n    @private\n    @method hasListeners\n    @static\n    @for @ember/object/events\n    @param obj\n    @param {String} eventName\n    @return {Boolean} if `obj` has listeners for event `eventName`\n  */\n\n\n  function hasListeners(obj, eventName) {\n    var meta$$1 = (0, _meta2.peekMeta)(obj);\n\n    if (meta$$1 === null) {\n      return false;\n    }\n\n    var matched = meta$$1.matchingListeners(eventName);\n    return matched !== undefined && matched.length > 0;\n  }\n  /**\n    Define a property as a function that should be executed when\n    a specified event or events are triggered.\n  \n    ``` javascript\n    import EmberObject from '@ember/object';\n    import { on } from '@ember/object/evented';\n    import { sendEvent } from '@ember/object/events';\n  \n    let Job = EmberObject.extend({\n      logCompleted: on('completed', function() {\n        console.log('Job completed!');\n      })\n    });\n  \n    let job = Job.create();\n  \n    sendEvent(job, 'completed'); // Logs 'Job completed!'\n   ```\n  \n    @method on\n    @static\n    @for @ember/object/evented\n    @param {String} eventNames*\n    @param {Function} func\n    @return {Function} the listener function, passed as last argument to on(...)\n    @public\n  */\n\n\n  function on(...args) {\n    var func = args.pop();\n    var events = args;\n    (true && !(typeof func === 'function') && (0, _debug.assert)('on expects function as last argument', typeof func === 'function'));\n    (true && !(events.length > 0 && events.every(p => typeof p === 'string' && p.length > 0)) && (0, _debug.assert)('on called without valid event names', events.length > 0 && events.every(p => typeof p === 'string' && p.length > 0)));\n    (0, _utils.setListeners)(func, events);\n    return func;\n  }\n\n  var AFTER_OBSERVERS = ':change';\n\n  function changeEvent(keyName) {\n    return keyName + AFTER_OBSERVERS;\n  }\n\n  var SYNC_DEFAULT = !_environment.ENV._DEFAULT_ASYNC_OBSERVERS;\n  var SYNC_OBSERVERS = new Map();\n  _exports.SYNC_OBSERVERS = SYNC_OBSERVERS;\n  var ASYNC_OBSERVERS = new Map();\n  /**\n  @module @ember/object\n  */\n\n  /**\n    @method addObserver\n    @static\n    @for @ember/object/observers\n    @param obj\n    @param {String} path\n    @param {Object|Function} target\n    @param {Function|String} [method]\n    @public\n  */\n\n  _exports.ASYNC_OBSERVERS = ASYNC_OBSERVERS;\n\n  function addObserver(obj, path, target, method, sync = SYNC_DEFAULT) {\n    var eventName = changeEvent(path);\n    addListener(obj, eventName, target, method, false, sync);\n    var meta$$1 = (0, _meta2.peekMeta)(obj);\n\n    if (meta$$1 === null || !(meta$$1.isPrototypeMeta(obj) || meta$$1.isInitializing())) {\n      activateObserver(obj, eventName, sync);\n    }\n  }\n  /**\n    @method removeObserver\n    @static\n    @for @ember/object/observers\n    @param obj\n    @param {String} path\n    @param {Object|Function} target\n    @param {Function|String} [method]\n    @public\n  */\n\n\n  function removeObserver(obj, path, target, method, sync = SYNC_DEFAULT) {\n    var eventName = changeEvent(path);\n    var meta$$1 = (0, _meta2.peekMeta)(obj);\n\n    if (meta$$1 === null || !(meta$$1.isPrototypeMeta(obj) || meta$$1.isInitializing())) {\n      deactivateObserver(obj, eventName, sync);\n    }\n\n    removeListener(obj, eventName, target, method);\n  }\n\n  function getOrCreateActiveObserversFor(target, sync) {\n    var observerMap = sync === true ? SYNC_OBSERVERS : ASYNC_OBSERVERS;\n\n    if (!observerMap.has(target)) {\n      observerMap.set(target, new Map());\n    }\n\n    return observerMap.get(target);\n  }\n\n  function activateObserver(target, eventName, sync = false) {\n    var activeObservers = getOrCreateActiveObserversFor(target, sync);\n\n    if (activeObservers.has(eventName)) {\n      activeObservers.get(eventName).count++;\n    } else {\n      var [path] = eventName.split(':');\n      var tag = (0, _validator.combine)(getChainTagsForKey(target, path));\n      activeObservers.set(eventName, {\n        count: 1,\n        path,\n        tag,\n        lastRevision: (0, _validator.valueForTag)(tag),\n        suspended: false\n      });\n    }\n  }\n\n  var DEACTIVATE_SUSPENDED = false;\n  var SCHEDULED_DEACTIVATE = [];\n\n  function deactivateObserver(target, eventName, sync = false) {\n    if (DEACTIVATE_SUSPENDED === true) {\n      SCHEDULED_DEACTIVATE.push([target, eventName, sync]);\n      return;\n    }\n\n    var observerMap = sync === true ? SYNC_OBSERVERS : ASYNC_OBSERVERS;\n    var activeObservers = observerMap.get(target);\n\n    if (activeObservers !== undefined) {\n      var _observer = activeObservers.get(eventName);\n\n      _observer.count--;\n\n      if (_observer.count === 0) {\n        activeObservers.delete(eventName);\n\n        if (activeObservers.size === 0) {\n          observerMap.delete(target);\n        }\n      }\n    }\n  }\n\n  function suspendedObserverDeactivation() {\n    DEACTIVATE_SUSPENDED = true;\n  }\n\n  function resumeObserverDeactivation() {\n    DEACTIVATE_SUSPENDED = false;\n\n    for (var [target, eventName, sync] of SCHEDULED_DEACTIVATE) {\n      deactivateObserver(target, eventName, sync);\n    }\n\n    SCHEDULED_DEACTIVATE = [];\n  }\n  /**\n   * Primarily used for cases where we are redefining a class, e.g. mixins/reopen\n   * being applied later. Revalidates all the observers, resetting their tags.\n   *\n   * @private\n   * @param target\n   */\n\n\n  function revalidateObservers(target) {\n    if (ASYNC_OBSERVERS.has(target)) {\n      ASYNC_OBSERVERS.get(target).forEach(observer => {\n        observer.tag = (0, _validator.combine)(getChainTagsForKey(target, observer.path));\n        observer.lastRevision = (0, _validator.valueForTag)(observer.tag);\n      });\n    }\n\n    if (SYNC_OBSERVERS.has(target)) {\n      SYNC_OBSERVERS.get(target).forEach(observer => {\n        observer.tag = (0, _validator.combine)(getChainTagsForKey(target, observer.path));\n        observer.lastRevision = (0, _validator.valueForTag)(observer.tag);\n      });\n    }\n  }\n\n  var lastKnownRevision = 0;\n\n  function flushAsyncObservers(shouldSchedule = true) {\n    var currentRevision = (0, _validator.valueForTag)(_validator.CURRENT_TAG);\n\n    if (lastKnownRevision === currentRevision) {\n      return;\n    }\n\n    lastKnownRevision = currentRevision;\n    ASYNC_OBSERVERS.forEach((activeObservers, target) => {\n      var meta$$1 = (0, _meta2.peekMeta)(target); // if observer target is destroyed remove observers\n\n      if (meta$$1 && (meta$$1.isSourceDestroying() || meta$$1.isMetaDestroyed())) {\n        ASYNC_OBSERVERS.delete(target);\n        return;\n      }\n\n      activeObservers.forEach((observer, eventName) => {\n        if (!(0, _validator.validateTag)(observer.tag, observer.lastRevision)) {\n          var sendObserver = () => {\n            try {\n              sendEvent(target, eventName, [target, observer.path], undefined, meta$$1);\n            } finally {\n              observer.tag = (0, _validator.combine)(getChainTagsForKey(target, observer.path));\n              observer.lastRevision = (0, _validator.valueForTag)(observer.tag);\n            }\n          };\n\n          if (shouldSchedule) {\n            (0, _runloop.schedule)('actions', sendObserver);\n          } else {\n            sendObserver();\n          }\n        }\n      });\n    });\n  }\n\n  function flushSyncObservers() {\n    // When flushing synchronous observers, we know that something has changed (we\n    // only do this during a notifyPropertyChange), so there's no reason to check\n    // a global revision.\n    SYNC_OBSERVERS.forEach((activeObservers, target) => {\n      var meta$$1 = (0, _meta2.peekMeta)(target);\n\n      if (meta$$1 && (meta$$1.isSourceDestroying() || meta$$1.isMetaDestroyed())) {\n        SYNC_OBSERVERS.delete(target);\n        return;\n      }\n\n      activeObservers.forEach((observer, eventName) => {\n        if (!observer.suspended && !(0, _validator.validateTag)(observer.tag, observer.lastRevision)) {\n          try {\n            observer.suspended = true;\n            sendEvent(target, eventName, [target, observer.path], undefined, meta$$1);\n          } finally {\n            observer.tag = (0, _validator.combine)(getChainTagsForKey(target, observer.path));\n            observer.lastRevision = (0, _validator.valueForTag)(observer.tag);\n            observer.suspended = false;\n          }\n        }\n      });\n    });\n  }\n\n  function setObserverSuspended(target, property, suspended) {\n    var activeObservers = SYNC_OBSERVERS.get(target);\n\n    if (!activeObservers) {\n      return;\n    }\n\n    var observer = activeObservers.get(changeEvent(property));\n\n    if (observer) {\n      observer.suspended = suspended;\n    }\n  }\n\n  function destroyObservers(target) {\n    if (SYNC_OBSERVERS.size > 0) SYNC_OBSERVERS.delete(target);\n    if (ASYNC_OBSERVERS.size > 0) ASYNC_OBSERVERS.delete(target);\n  } // Setup tracking environment\n\n\n  (0, _validator.setPropertyDidChange)(() => _runloop.backburner.ensureInstance());\n\n  if (true\n  /* DEBUG */\n  ) {\n    (0, _validator.setAutotrackingTransactionEnv)({\n      assert(message) {\n        (true && !(false) && (0, _debug.assert)(message, false));\n      },\n\n      deprecate(message) {\n        (true && !(false) && (0, _debug.deprecate)(message, false, {\n          id: 'autotracking.mutation-after-consumption',\n          until: '4.0.0'\n        }));\n      },\n\n      debugMessage(obj, keyName) {\n        var dirtyString = keyName ? `\\`${keyName}\\` on \\`${(0, _utils.getDebugName)(obj)}\\`` : `\\`${(0, _utils.getDebugName)(obj)}\\``;\n        return `You attempted to update ${dirtyString}, but it had already been used previously in the same computation.  Attempting to update a value after using it in a computation can cause logical errors, infinite revalidation bugs, and performance issues, and is not supported.`;\n      }\n\n    });\n  } /////////\n\n\n  var CUSTOM_TAG_FOR = (0, _utils.symbol)('CUSTOM_TAG_FOR'); // This is exported for `@tracked`, but should otherwise be avoided. Use `tagForObject`.\n\n  _exports.CUSTOM_TAG_FOR = CUSTOM_TAG_FOR;\n  var SELF_TAG = (0, _utils.symbol)('SELF_TAG');\n\n  function tagForProperty(obj, propertyKey) {\n    if (!(0, _utils.isObject)(obj)) {\n      return _validator.CONSTANT_TAG;\n    }\n\n    if (typeof obj[CUSTOM_TAG_FOR] === 'function') {\n      return obj[CUSTOM_TAG_FOR](propertyKey);\n    }\n\n    var tag = (0, _validator.tagFor)(obj, propertyKey);\n\n    if (true\n    /* DEBUG */\n    ) {\n      (0, _utils.setupMandatorySetter)(tag, obj, propertyKey); // TODO: Replace this with something more first class for tracking tags in DEBUG\n\n      tag._propertyKey = propertyKey;\n    }\n\n    return tag;\n  }\n\n  function tagForObject(obj) {\n    if ((0, _utils.isObject)(obj)) {\n      if (true\n      /* DEBUG */\n      ) {\n        var meta$$1 = (0, _meta2.meta)(obj);\n        (true && !(!meta$$1.isMetaDestroyed()) && (0, _debug.assert)(meta$$1.isMetaDestroyed() ? `Cannot create a new tag for \\`${(0, _utils.toString)(meta$$1.source)}\\` after it has been destroyed.` : '', !meta$$1.isMetaDestroyed()));\n      }\n\n      return (0, _validator.tagFor)(obj, SELF_TAG);\n    }\n\n    return _validator.CONSTANT_TAG;\n  }\n\n  function markObjectAsDirty(obj, propertyKey) {\n    (0, _validator.dirtyTagFor)(obj, propertyKey);\n    (0, _validator.dirtyTagFor)(obj, SELF_TAG);\n  }\n  /**\n   @module ember\n   @private\n   */\n\n\n  var PROPERTY_DID_CHANGE = (0, _utils.symbol)('PROPERTY_DID_CHANGE');\n  _exports.PROPERTY_DID_CHANGE = PROPERTY_DID_CHANGE;\n  var deferred = 0;\n  /**\n    This function is called just after an object property has changed.\n    It will notify any observers and clear caches among other things.\n  \n    Normally you will not need to call this method directly but if for some\n    reason you can't directly watch a property you can invoke this method\n    manually.\n  \n    @method notifyPropertyChange\n    @for @ember/object\n    @param {Object} obj The object with the property that will change\n    @param {String} keyName The property key (or path) that will change.\n    @param {Meta} [_meta] The objects meta.\n    @param {unknown} [value] The new value to set for the property\n    @return {void}\n    @since 3.1.0\n    @public\n  */\n\n  function notifyPropertyChange(obj, keyName, _meta, value) {\n    var meta$$1 = _meta === undefined ? (0, _meta2.peekMeta)(obj) : _meta;\n\n    if (meta$$1 !== null && (meta$$1.isInitializing() || meta$$1.isPrototypeMeta(obj))) {\n      return;\n    }\n\n    markObjectAsDirty(obj, keyName);\n\n    if (deferred <= 0) {\n      flushSyncObservers();\n    }\n\n    if (PROPERTY_DID_CHANGE in obj) {\n      // we need to check the arguments length here; there's a check in `PROPERTY_DID_CHANGE`\n      // that checks its arguments length, so we have to explicitly not call this with `value`\n      // if it is not passed to `notifyPropertyChange`\n      if (arguments.length === 4) {\n        obj[PROPERTY_DID_CHANGE](keyName, value);\n      } else {\n        obj[PROPERTY_DID_CHANGE](keyName);\n      }\n    }\n  }\n  /**\n    @method beginPropertyChanges\n    @chainable\n    @private\n  */\n\n\n  function beginPropertyChanges() {\n    deferred++;\n    suspendedObserverDeactivation();\n  }\n  /**\n    @method endPropertyChanges\n    @private\n  */\n\n\n  function endPropertyChanges() {\n    deferred--;\n\n    if (deferred <= 0) {\n      flushSyncObservers();\n      resumeObserverDeactivation();\n    }\n  }\n  /**\n    Make a series of property changes together in an\n    exception-safe way.\n  \n    ```javascript\n    Ember.changeProperties(function() {\n      obj1.set('foo', mayBlowUpWhenSet);\n      obj2.set('bar', baz);\n    });\n    ```\n  \n    @method changeProperties\n    @param {Function} callback\n    @private\n  */\n\n\n  function changeProperties(callback) {\n    beginPropertyChanges();\n\n    try {\n      callback();\n    } finally {\n      endPropertyChanges();\n    }\n  }\n\n  function arrayContentWillChange(array, startIdx, removeAmt, addAmt) {\n    // if no args are passed assume everything changes\n    if (startIdx === undefined) {\n      startIdx = 0;\n      removeAmt = addAmt = -1;\n    } else {\n      if (removeAmt === undefined) {\n        removeAmt = -1;\n      }\n\n      if (addAmt === undefined) {\n        addAmt = -1;\n      }\n    }\n\n    sendEvent(array, '@array:before', [array, startIdx, removeAmt, addAmt]);\n    return array;\n  }\n\n  function arrayContentDidChange(array, startIdx, removeAmt, addAmt, notify = true) {\n    // if no args are passed assume everything changes\n    if (startIdx === undefined) {\n      startIdx = 0;\n      removeAmt = addAmt = -1;\n    } else {\n      if (removeAmt === undefined) {\n        removeAmt = -1;\n      }\n\n      if (addAmt === undefined) {\n        addAmt = -1;\n      }\n    }\n\n    var meta$$1 = (0, _meta2.peekMeta)(array);\n\n    if (notify) {\n      if (addAmt < 0 || removeAmt < 0 || addAmt - removeAmt !== 0) {\n        notifyPropertyChange(array, 'length', meta$$1);\n      }\n\n      notifyPropertyChange(array, '[]', meta$$1);\n    }\n\n    sendEvent(array, '@array:change', [array, startIdx, removeAmt, addAmt]);\n    var cache = peekCacheFor(array);\n\n    if (cache !== undefined) {\n      var length = array.length;\n      var addedAmount = addAmt === -1 ? 0 : addAmt;\n      var removedAmount = removeAmt === -1 ? 0 : removeAmt;\n      var delta = addedAmount - removedAmount;\n      var previousLength = length - delta;\n      var normalStartIdx = startIdx < 0 ? previousLength + startIdx : startIdx;\n\n      if (cache.has('firstObject') && normalStartIdx === 0) {\n        notifyPropertyChange(array, 'firstObject', meta$$1);\n      }\n\n      if (cache.has('lastObject')) {\n        var previousLastIndex = previousLength - 1;\n        var lastAffectedIndex = normalStartIdx + removedAmount;\n\n        if (previousLastIndex < lastAffectedIndex) {\n          notifyPropertyChange(array, 'lastObject', meta$$1);\n        }\n      }\n    }\n\n    return array;\n  }\n\n  var EMPTY_ARRAY = Object.freeze([]);\n\n  function objectAt(array, index) {\n    if (Array.isArray(array)) {\n      return array[index];\n    } else {\n      return array.objectAt(index);\n    }\n  }\n\n  function replace(array, start, deleteCount, items = EMPTY_ARRAY) {\n    if (Array.isArray(array)) {\n      replaceInNativeArray(array, start, deleteCount, items);\n    } else {\n      array.replace(start, deleteCount, items);\n    }\n  }\n\n  var CHUNK_SIZE = 60000; // To avoid overflowing the stack, we splice up to CHUNK_SIZE items at a time.\n  // See https://code.google.com/p/chromium/issues/detail?id=56588 for more details.\n\n  function replaceInNativeArray(array, start, deleteCount, items) {\n    arrayContentWillChange(array, start, deleteCount, items.length);\n\n    if (items.length <= CHUNK_SIZE) {\n      array.splice(start, deleteCount, ...items);\n    } else {\n      array.splice(start, deleteCount);\n\n      for (var i = 0; i < items.length; i += CHUNK_SIZE) {\n        var chunk = items.slice(i, i + CHUNK_SIZE);\n        array.splice(start + i, 0, ...chunk);\n      }\n    }\n\n    arrayContentDidChange(array, start, deleteCount, items.length);\n  }\n\n  function arrayObserversHelper(obj, target, opts, operation, notify) {\n    var willChange = opts && opts.willChange || 'arrayWillChange';\n    var didChange = opts && opts.didChange || 'arrayDidChange';\n    var hasObservers = obj.hasArrayObservers;\n    operation(obj, '@array:before', target, willChange);\n    operation(obj, '@array:change', target, didChange);\n\n    if (hasObservers === notify) {\n      notifyPropertyChange(obj, 'hasArrayObservers');\n    }\n\n    return obj;\n  }\n\n  function addArrayObserver(array, target, opts) {\n    return arrayObserversHelper(array, target, opts, addListener, false);\n  }\n\n  function removeArrayObserver(array, target, opts) {\n    return arrayObserversHelper(array, target, opts, removeListener, true);\n  }\n\n  var DECORATOR_DESCRIPTOR_MAP = new WeakMap();\n  /**\n    Returns the CP descriptor associated with `obj` and `keyName`, if any.\n  \n    @method descriptorForProperty\n    @param {Object} obj the object to check\n    @param {String} keyName the key to check\n    @return {Descriptor}\n    @private\n  */\n\n  function descriptorForProperty(obj, keyName, _meta) {\n    (true && !(obj !== null) && (0, _debug.assert)('Cannot call `descriptorForProperty` on null', obj !== null));\n    (true && !(obj !== undefined) && (0, _debug.assert)('Cannot call `descriptorForProperty` on undefined', obj !== undefined));\n    (true && !(typeof obj === 'object' || typeof obj === 'function') && (0, _debug.assert)(`Cannot call \\`descriptorForProperty\\` on ${typeof obj}`, typeof obj === 'object' || typeof obj === 'function'));\n    var meta$$1 = _meta === undefined ? (0, _meta2.peekMeta)(obj) : _meta;\n\n    if (meta$$1 !== null) {\n      return meta$$1.peekDescriptors(keyName);\n    }\n  }\n\n  function descriptorForDecorator(dec) {\n    return DECORATOR_DESCRIPTOR_MAP.get(dec);\n  }\n  /**\n    Check whether a value is a decorator\n  \n    @method isClassicDecorator\n    @param {any} possibleDesc the value to check\n    @return {boolean}\n    @private\n  */\n\n\n  function isClassicDecorator(dec) {\n    return dec !== null && dec !== undefined && DECORATOR_DESCRIPTOR_MAP.has(dec);\n  }\n  /**\n    Set a value as a decorator\n  \n    @method setClassicDecorator\n    @param {function} decorator the value to mark as a decorator\n    @private\n  */\n\n\n  function setClassicDecorator(dec, value = true) {\n    DECORATOR_DESCRIPTOR_MAP.set(dec, value);\n  }\n\n  function finishLazyChains(obj, key, value) {\n    var meta$$1 = (0, _meta2.peekMeta)(obj);\n    var lazyTags = meta$$1 !== null ? meta$$1.readableLazyChainsFor(key) : undefined;\n\n    if (lazyTags === undefined) {\n      return;\n    }\n\n    if (value === null || typeof value !== 'object' && typeof value !== 'function') {\n      for (var path in lazyTags) {\n        delete lazyTags[path];\n      }\n\n      return;\n    }\n\n    for (var _path in lazyTags) {\n      var tag = lazyTags[_path];\n      (0, _validator.updateTag)(tag, (0, _validator.combine)(getChainTagsForKey(value, _path)));\n      delete lazyTags[_path];\n    }\n  }\n\n  function getChainTagsForKeys(obj, keys) {\n    var chainTags = [];\n\n    for (var i = 0; i < keys.length; i++) {\n      chainTags.push(...getChainTagsForKey(obj, keys[i]));\n    }\n\n    return chainTags;\n  }\n\n  function getChainTagsForKey(obj, path) {\n    var chainTags = [];\n    var current = obj;\n    var pathLength = path.length;\n    var segmentEnd = -1; // prevent closures\n\n    var segment, descriptor; // eslint-disable-next-line no-constant-condition\n\n    while (true) {\n      var currentType = typeof current;\n\n      if (current === null || currentType !== 'object' && currentType !== 'function') {\n        // we've hit the end of the chain for now, break out\n        break;\n      }\n\n      var lastSegmentEnd = segmentEnd + 1;\n      segmentEnd = path.indexOf('.', lastSegmentEnd);\n\n      if (segmentEnd === -1) {\n        segmentEnd = pathLength;\n      }\n\n      segment = path.slice(lastSegmentEnd, segmentEnd); // If the segment is an @each, we can process it and then break\n\n      if (segment === '@each' && segmentEnd !== pathLength) {\n        lastSegmentEnd = segmentEnd + 1;\n        segmentEnd = path.indexOf('.', lastSegmentEnd); // There should be exactly one segment after an `@each` (i.e. `@each.foo`, not `@each.foo.bar`)\n\n        (true && !(segmentEnd === -1) && (0, _debug.deprecate)(`When using @each in a dependent-key or an observer, ` + `you can only chain one property level deep after ` + `the @each. That is, \\`${path.slice(0, segmentEnd)}\\` ` + `is allowed but \\`${path}\\` (which is what you passed) ` + `is not.\\n\\n` + `This was never supported. Currently, the extra segments ` + `are silently ignored, i.e. \\`${path}\\` behaves exactly ` + `the same as \\`${path.slice(0, segmentEnd)}\\`. ` + `In the future, this will throw an error.\\n\\n` + `If the current behavior is acceptable for your use case, ` + `please remove the extraneous segments by changing your ` + `key to \\`${path.slice(0, segmentEnd)}\\`. ` + `Otherwise, please create an intermediary computed property ` + `or switch to using tracked properties.`, segmentEnd === -1, {\n          until: '3.17.0',\n          id: 'ember-metal.computed-deep-each'\n        }));\n        var arrLength = current.length;\n\n        if (typeof arrLength !== 'number' || // TODO: should the second test be `isEmberArray` instead?\n        !(Array.isArray(current) || 'objectAt' in current)) {\n          // If the current object isn't an array, there's nothing else to do,\n          // we don't watch individual properties. Break out of the loop.\n          break;\n        } else if (arrLength === 0) {\n          // Fast path for empty arrays\n          chainTags.push(tagForProperty(current, '[]'));\n          break;\n        }\n\n        if (segmentEnd === -1) {\n          segment = path.slice(lastSegmentEnd);\n        } else {\n          // Deprecated, remove once we turn the deprecation into an assertion\n          segment = path.slice(lastSegmentEnd, segmentEnd);\n        } // Push the tags for each item's property\n\n\n        for (var i = 0; i < arrLength; i++) {\n          var item = objectAt(current, i);\n\n          if (item) {\n            (true && !(typeof item === 'object') && (0, _debug.assert)(`When using @each to observe the array \\`${current.toString()}\\`, the items in the array must be objects`, typeof item === 'object'));\n            chainTags.push(tagForProperty(item, segment));\n          }\n        } // Push the tag for the array length itself\n\n\n        chainTags.push(tagForProperty(current, '[]'));\n        break;\n      } // TODO: Assert that current[segment] isn't an undecorated, non-MANDATORY_SETTER/dependentKeyCompat getter\n\n\n      var propertyTag = tagForProperty(current, segment);\n      descriptor = descriptorForProperty(current, segment);\n      chainTags.push(propertyTag); // If the key was an alias, we should always get the next value in order to\n      // bootstrap the alias. This is because aliases, unlike other CPs, should\n      // always be in sync with the aliased value.\n\n      if (descriptor !== undefined && typeof descriptor.altKey === 'string') {\n        current = current[segment]; // We still need to break if we're at the end of the path.\n\n        if (segmentEnd === pathLength) {\n          break;\n        } // Otherwise, continue to process the next segment\n\n\n        continue;\n      } // If we're at the end of the path, processing the last segment, and it's\n      // not an alias, we should _not_ get the last value, since we already have\n      // its tag. There's no reason to access it and do more work.\n\n\n      if (segmentEnd === pathLength) {\n        break;\n      }\n\n      if (descriptor === undefined) {\n        // If the descriptor is undefined, then its a normal property, so we should\n        // lookup the value to chain off of like normal.\n        if (!(segment in current) && typeof current.unknownProperty === 'function') {\n          current = current.unknownProperty(segment);\n        } else {\n          current = current[segment];\n        }\n      } else {\n        // If the descriptor is defined, then its a normal CP (not an alias, which\n        // would have been handled earlier). We get the last revision to check if\n        // the CP is still valid, and if so we use the cached value. If not, then\n        // we create a lazy chain lookup, and the next time the CP is calculated,\n        // it will update that lazy chain.\n        var lastRevision = getLastRevisionFor(current, segment);\n\n        if ((0, _validator.validateTag)(propertyTag, lastRevision)) {\n          current = peekCacheFor(current).get(segment);\n        } else {\n          var lazyChains = (0, _meta2.meta)(current).writableLazyChainsFor(segment);\n          var rest = path.substr(segmentEnd + 1);\n          var placeholderTag = lazyChains[rest];\n\n          if (placeholderTag === undefined) {\n            placeholderTag = lazyChains[rest] = (0, _validator.createUpdatableTag)();\n          }\n\n          chainTags.push(placeholderTag);\n          break;\n        }\n      }\n    }\n\n    if (true\n    /* DEBUG */\n    ) {\n      chainTags.forEach(t => _validator.ALLOW_CYCLES.set(t, true));\n    }\n\n    return chainTags;\n  }\n\n  function isElementDescriptor(args) {\n    var [maybeTarget, maybeKey, maybeDesc] = args;\n    return (// Ensure we have the right number of args\n      args.length === 3 && ( // Make sure the target is a class or object (prototype)\n      typeof maybeTarget === 'function' || typeof maybeTarget === 'object' && maybeTarget !== null) && // Make sure the key is a string\n      typeof maybeKey === 'string' && ( // Make sure the descriptor is the right shape\n      typeof maybeDesc === 'object' && maybeDesc !== null && 'enumerable' in maybeDesc && 'configurable' in maybeDesc || // TS compatibility\n      maybeDesc === undefined)\n    );\n  }\n\n  function nativeDescDecorator(propertyDesc) {\n    var decorator = function () {\n      return propertyDesc;\n    };\n\n    setClassicDecorator(decorator);\n    return decorator;\n  }\n  /**\n    Objects of this type can implement an interface to respond to requests to\n    get and set. The default implementation handles simple properties.\n  \n    @class Descriptor\n    @private\n  */\n\n\n  class ComputedDescriptor {\n    constructor() {\n      this.enumerable = true;\n      this.configurable = true;\n      this._dependentKeys = undefined;\n      this._meta = undefined;\n    }\n\n    setup(_obj, keyName, _propertyDesc, meta$$1) {\n      meta$$1.writeDescriptors(keyName, this);\n    }\n\n    teardown(_obj, keyName, meta$$1) {\n      meta$$1.removeDescriptors(keyName);\n    }\n\n  }\n\n  function DESCRIPTOR_GETTER_FUNCTION(name, descriptor) {\n    return function CPGETTER_FUNCTION() {\n      return descriptor.get(this, name);\n    };\n  }\n\n  function DESCRIPTOR_SETTER_FUNCTION(name, descriptor) {\n    var func = function CPSETTER_FUNCTION(value) {\n      return descriptor.set(this, name, value);\n    };\n\n    CP_SETTER_FUNCS.add(func);\n    return func;\n  }\n\n  var CP_SETTER_FUNCS = new _polyfills._WeakSet();\n\n  function makeComputedDecorator(desc, DecoratorClass) {\n    var decorator = function COMPUTED_DECORATOR(target, key, propertyDesc, maybeMeta, isClassicDecorator$$1) {\n      (true && !(isClassicDecorator$$1 || !propertyDesc || !propertyDesc.get || propertyDesc.get.toString().indexOf('CPGETTER_FUNCTION') === -1) && (0, _debug.assert)(`Only one computed property decorator can be applied to a class field or accessor, but '${key}' was decorated twice. You may have added the decorator to both a getter and setter, which is unnecessary.`, isClassicDecorator$$1 || !propertyDesc || !propertyDesc.get || propertyDesc.get.toString().indexOf('CPGETTER_FUNCTION') === -1));\n      var meta$$1 = arguments.length === 3 ? (0, _meta2.meta)(target) : maybeMeta;\n      desc.setup(target, key, propertyDesc, meta$$1);\n      var computedDesc = {\n        enumerable: desc.enumerable,\n        configurable: desc.configurable,\n        get: DESCRIPTOR_GETTER_FUNCTION(key, desc),\n        set: DESCRIPTOR_SETTER_FUNCTION(key, desc)\n      };\n      return computedDesc;\n    };\n\n    setClassicDecorator(decorator, desc);\n    Object.setPrototypeOf(decorator, DecoratorClass.prototype);\n    return decorator;\n  }\n  /**\n  @module @ember/object\n  */\n\n\n  var END_WITH_EACH_REGEX = /\\.@each$/;\n  /**\n    Expands `pattern`, invoking `callback` for each expansion.\n  \n    The only pattern supported is brace-expansion, anything else will be passed\n    once to `callback` directly.\n  \n    Example\n  \n    ```js\n    import { expandProperties } from '@ember/object/computed';\n  \n    function echo(arg){ console.log(arg); }\n  \n    expandProperties('foo.bar', echo);              //=> 'foo.bar'\n    expandProperties('{foo,bar}', echo);            //=> 'foo', 'bar'\n    expandProperties('foo.{bar,baz}', echo);        //=> 'foo.bar', 'foo.baz'\n    expandProperties('{foo,bar}.baz', echo);        //=> 'foo.baz', 'bar.baz'\n    expandProperties('foo.{bar,baz}.[]', echo)      //=> 'foo.bar.[]', 'foo.baz.[]'\n    expandProperties('{foo,bar}.{spam,eggs}', echo) //=> 'foo.spam', 'foo.eggs', 'bar.spam', 'bar.eggs'\n    expandProperties('{foo}.bar.{baz}')             //=> 'foo.bar.baz'\n    ```\n  \n    @method expandProperties\n    @static\n    @for @ember/object/computed\n    @public\n    @param {String} pattern The property pattern to expand.\n    @param {Function} callback The callback to invoke.  It is invoked once per\n    expansion, and is passed the expansion.\n  */\n\n  function expandProperties(pattern, callback) {\n    (true && !(typeof pattern === 'string') && (0, _debug.assert)(`A computed property key must be a string, you passed ${typeof pattern} ${pattern}`, typeof pattern === 'string'));\n    (true && !(pattern.indexOf(' ') === -1) && (0, _debug.assert)('Brace expanded properties cannot contain spaces, e.g. \"user.{firstName, lastName}\" should be \"user.{firstName,lastName}\"', pattern.indexOf(' ') === -1)); // regex to look for double open, double close, or unclosed braces\n\n    (true && !(pattern.match(/\\{[^}{]*\\{|\\}[^}{]*\\}|\\{[^}]*$/g) === null) && (0, _debug.assert)(`Brace expanded properties have to be balanced and cannot be nested, pattern: ${pattern}`, pattern.match(/\\{[^}{]*\\{|\\}[^}{]*\\}|\\{[^}]*$/g) === null));\n    var start = pattern.indexOf('{');\n\n    if (start < 0) {\n      callback(pattern.replace(END_WITH_EACH_REGEX, '.[]'));\n    } else {\n      dive('', pattern, start, callback);\n    }\n  }\n\n  function dive(prefix, pattern, start, callback) {\n    var end = pattern.indexOf('}'),\n        i = 0,\n        newStart,\n        arrayLength;\n    var tempArr = pattern.substring(start + 1, end).split(',');\n    var after = pattern.substring(end + 1);\n    prefix = prefix + pattern.substring(0, start);\n    arrayLength = tempArr.length;\n\n    while (i < arrayLength) {\n      newStart = after.indexOf('{');\n\n      if (newStart < 0) {\n        callback((prefix + tempArr[i++] + after).replace(END_WITH_EACH_REGEX, '.[]'));\n      } else {\n        dive(prefix + tempArr[i++], after, newStart, callback);\n      }\n    }\n  }\n  /**\n  @module @ember/object\n  */\n\n  /**\n    NOTE: This is a low-level method used by other parts of the API. You almost\n    never want to call this method directly. Instead you should use\n    `mixin()` to define new properties.\n  \n    Defines a property on an object. This method works much like the ES5\n    `Object.defineProperty()` method except that it can also accept computed\n    properties and other special descriptors.\n  \n    Normally this method takes only three parameters. However if you pass an\n    instance of `Descriptor` as the third param then you can pass an\n    optional value as the fourth parameter. This is often more efficient than\n    creating new descriptor hashes for each property.\n  \n    ## Examples\n  \n    ```javascript\n    import { defineProperty, computed } from '@ember/object';\n  \n    // ES5 compatible mode\n    defineProperty(contact, 'firstName', {\n      writable: true,\n      configurable: false,\n      enumerable: true,\n      value: 'Charles'\n    });\n  \n    // define a simple property\n    defineProperty(contact, 'lastName', undefined, 'Jolley');\n  \n    // define a computed property\n    defineProperty(contact, 'fullName', computed('firstName', 'lastName', function() {\n      return this.firstName+' '+this.lastName;\n    }));\n    ```\n  \n    @public\n    @method defineProperty\n    @static\n    @for @ember/object\n    @param {Object} obj the object to define this property on. This may be a prototype.\n    @param {String} keyName the name of the property\n    @param {Descriptor} [desc] an instance of `Descriptor` (typically a\n      computed property) or an ES5 descriptor.\n      You must provide this or `data` but not both.\n    @param {*} [data] something other than a descriptor, that will\n      become the explicit value of this property.\n  */\n\n\n  function defineProperty(obj, keyName, desc, data, meta$$1) {\n    if (meta$$1 === undefined) {\n      meta$$1 = (0, _meta2.meta)(obj);\n    }\n\n    var previousDesc = descriptorForProperty(obj, keyName, meta$$1);\n    var wasDescriptor = previousDesc !== undefined;\n\n    if (wasDescriptor) {\n      previousDesc.teardown(obj, keyName, meta$$1);\n    } // used to track if the the property being defined be enumerable\n\n\n    var enumerable = true; // Ember.NativeArray is a normal Ember.Mixin that we mix into `Array.prototype` when prototype extensions are enabled\n    // mutating a native object prototype like this should _not_ result in enumerable properties being added (or we have significant\n    // issues with things like deep equality checks from test frameworks, or things like jQuery.extend(true, [], [])).\n    //\n    // this is a hack, and we should stop mutating the array prototype by default 😫\n\n    if (obj === Array.prototype) {\n      enumerable = false;\n    }\n\n    var value;\n\n    if (isClassicDecorator(desc)) {\n      var propertyDesc;\n\n      if (true\n      /* DEBUG */\n      ) {\n        propertyDesc = desc(obj, keyName, undefined, meta$$1, true);\n      } else {\n        propertyDesc = desc(obj, keyName, undefined, meta$$1);\n      }\n\n      Object.defineProperty(obj, keyName, propertyDesc); // pass the decorator function forward for backwards compat\n\n      value = desc;\n    } else if (desc === undefined || desc === null) {\n      value = data;\n\n      if (wasDescriptor || enumerable === false) {\n        Object.defineProperty(obj, keyName, {\n          configurable: true,\n          enumerable,\n          writable: true,\n          value\n        });\n      } else {\n        if (true\n        /* DEBUG */\n        ) {\n          (0, _utils.setWithMandatorySetter)(obj, keyName, data);\n        } else {\n          obj[keyName] = data;\n        }\n      }\n    } else {\n      value = desc; // fallback to ES5\n\n      Object.defineProperty(obj, keyName, desc);\n    } // if key is being watched, override chains that\n    // were initialized with the prototype\n\n\n    if (!meta$$1.isPrototypeMeta(obj)) {\n      revalidateObservers(obj);\n    } // The `value` passed to the `didDefineProperty` hook is\n    // either the descriptor or data, whichever was passed.\n\n\n    if (typeof obj.didDefineProperty === 'function') {\n      obj.didDefineProperty(obj, keyName, value);\n    }\n  }\n\n  var firstDotIndexCache = new _utils.Cache(1000, key => key.indexOf('.'));\n\n  function isPath(path) {\n    return typeof path === 'string' && firstDotIndexCache.get(path) !== -1;\n  }\n  /**\n  @module @ember/object\n  */\n\n\n  var PROXY_CONTENT = (0, _utils.symbol)('PROXY_CONTENT');\n  _exports.PROXY_CONTENT = PROXY_CONTENT;\n  var getPossibleMandatoryProxyValue;\n\n  if (true\n  /* DEBUG */\n  && _utils.HAS_NATIVE_PROXY) {\n    getPossibleMandatoryProxyValue = function getPossibleMandatoryProxyValue(obj, keyName) {\n      var content = obj[PROXY_CONTENT];\n\n      if (content === undefined) {\n        return obj[keyName];\n      } else {\n        /* global Reflect */\n        return Reflect.get(content, keyName, obj);\n      }\n    };\n  } // ..........................................................\n  // GET AND SET\n  //\n  // If we are on a platform that supports accessors we can use those.\n  // Otherwise simulate accessors by looking up the property directly on the\n  // object.\n\n  /**\n    Gets the value of a property on an object. If the property is computed,\n    the function will be invoked. If the property is not defined but the\n    object implements the `unknownProperty` method then that will be invoked.\n  \n    ```javascript\n    import { get } from '@ember/object';\n    get(obj, \"name\");\n    ```\n  \n    If you plan to run on IE8 and older browsers then you should use this\n    method anytime you want to retrieve a property on an object that you don't\n    know for sure is private. (Properties beginning with an underscore '_'\n    are considered private.)\n  \n    On all newer browsers, you only need to use this method to retrieve\n    properties if the property might not be defined on the object and you want\n    to respect the `unknownProperty` handler. Otherwise you can ignore this\n    method.\n  \n    Note that if the object itself is `undefined`, this method will throw\n    an error.\n  \n    @method get\n    @for @ember/object\n    @static\n    @param {Object} obj The object to retrieve from.\n    @param {String} keyName The property key to retrieve\n    @return {Object} the property value or `null`.\n    @public\n  */\n\n\n  function get(obj, keyName) {\n    (true && !(arguments.length === 2) && (0, _debug.assert)(`Get must be called with two arguments; an object and a property key`, arguments.length === 2));\n    (true && !(obj !== undefined && obj !== null) && (0, _debug.assert)(`Cannot call get with '${keyName}' on an undefined object.`, obj !== undefined && obj !== null));\n    (true && !(typeof keyName === 'string' || typeof keyName === 'number' && !isNaN(keyName)) && (0, _debug.assert)(`The key provided to get must be a string or number, you passed ${keyName}`, typeof keyName === 'string' || typeof keyName === 'number' && !isNaN(keyName)));\n    (true && !(typeof keyName !== 'string' || keyName.lastIndexOf('this.', 0) !== 0) && (0, _debug.assert)(`'this' in paths is not supported`, typeof keyName !== 'string' || keyName.lastIndexOf('this.', 0) !== 0));\n    var type = typeof obj;\n    var isObject$$1 = type === 'object';\n    var isFunction = type === 'function';\n    var isObjectLike = isObject$$1 || isFunction;\n\n    if (isPath(keyName)) {\n      return isObjectLike ? _getPath(obj, keyName) : undefined;\n    }\n\n    var value;\n\n    if (isObjectLike) {\n      if (true\n      /* DEBUG */\n      && _utils.HAS_NATIVE_PROXY) {\n        value = getPossibleMandatoryProxyValue(obj, keyName);\n      } else {\n        value = obj[keyName];\n      }\n    } else {\n      value = obj[keyName];\n    }\n\n    if (value === undefined) {\n      if (isObject$$1 && !(keyName in obj) && typeof obj.unknownProperty === 'function') {\n        if (true\n        /* DEBUG */\n        ) {\n          (0, _validator.deprecateMutationsInAutotrackingTransaction)(() => {\n            value = obj.unknownProperty(keyName);\n          });\n        } else {\n          value = obj.unknownProperty(keyName);\n        }\n      }\n    }\n\n    if (isObjectLike && (0, _validator.isTracking)()) {\n      (0, _validator.consumeTag)(tagForProperty(obj, keyName)); // Add the tag of the returned value if it is an array, since arrays\n      // should always cause updates if they are consumed and then changed\n\n      if (Array.isArray(value) || (0, _utils.isEmberArray)(value)) {\n        (0, _validator.consumeTag)(tagForProperty(value, '[]'));\n      } // Add the value of the content if the value is a proxy. This is because\n      // content changes the truthiness/falsiness of the proxy.\n\n\n      if ((0, _utils.isProxy)(value)) {\n        (0, _validator.consumeTag)(tagForProperty(value, 'content'));\n      }\n    }\n\n    return value;\n  }\n\n  function _getPath(root, path) {\n    var obj = root;\n    var parts = typeof path === 'string' ? path.split('.') : path;\n\n    for (var i = 0; i < parts.length; i++) {\n      if (obj === undefined || obj === null || obj.isDestroyed) {\n        return undefined;\n      }\n\n      obj = get(obj, parts[i]);\n    }\n\n    return obj;\n  }\n  /**\n    Retrieves the value of a property from an Object, or a default value in the\n    case that the property returns `undefined`.\n  \n    ```javascript\n    import { getWithDefault } from '@ember/object';\n    getWithDefault(person, 'lastName', 'Doe');\n    ```\n  \n    @method getWithDefault\n    @for @ember/object\n    @static\n    @param {Object} obj The object to retrieve from.\n    @param {String} keyName The name of the property to retrieve\n    @param {Object} defaultValue The value to return if the property value is undefined\n    @return {Object} The property value or the defaultValue.\n    @public\n  */\n\n\n  function getWithDefault(root, key, defaultValue) {\n    var value = get(root, key);\n\n    if (value === undefined) {\n      return defaultValue;\n    }\n\n    return value;\n  }\n  /**\n   @module @ember/object\n  */\n\n  /**\n    Sets the value of a property on an object, respecting computed properties\n    and notifying observers and other listeners of the change.\n    If the specified property is not defined on the object and the object\n    implements the `setUnknownProperty` method, then instead of setting the\n    value of the property on the object, its `setUnknownProperty` handler\n    will be invoked with the two parameters `keyName` and `value`.\n  \n    ```javascript\n    import { set } from '@ember/object';\n    set(obj, \"name\", value);\n    ```\n  \n    @method set\n    @static\n    @for @ember/object\n    @param {Object} obj The object to modify.\n    @param {String} keyName The property key to set\n    @param {Object} value The value to set\n    @return {Object} the passed value.\n    @public\n  */\n\n\n  function set(obj, keyName, value, tolerant) {\n    (true && !(arguments.length === 3 || arguments.length === 4) && (0, _debug.assert)(`Set must be called with three or four arguments; an object, a property key, a value and tolerant true/false`, arguments.length === 3 || arguments.length === 4));\n    (true && !(obj && typeof obj === 'object' || typeof obj === 'function') && (0, _debug.assert)(`Cannot call set with '${keyName}' on an undefined object.`, obj && typeof obj === 'object' || typeof obj === 'function'));\n    (true && !(typeof keyName === 'string' || typeof keyName === 'number' && !isNaN(keyName)) && (0, _debug.assert)(`The key provided to set must be a string or number, you passed ${keyName}`, typeof keyName === 'string' || typeof keyName === 'number' && !isNaN(keyName)));\n    (true && !(typeof keyName !== 'string' || keyName.lastIndexOf('this.', 0) !== 0) && (0, _debug.assert)(`'this' in paths is not supported`, typeof keyName !== 'string' || keyName.lastIndexOf('this.', 0) !== 0));\n\n    if (obj.isDestroyed) {\n      (true && !(tolerant) && (0, _debug.assert)(`calling set on destroyed object: ${(0, _utils.toString)(obj)}.${keyName} = ${(0, _utils.toString)(value)}`, tolerant));\n      return;\n    }\n\n    if (isPath(keyName)) {\n      return setPath(obj, keyName, value, tolerant);\n    }\n\n    var descriptor = (0, _utils.lookupDescriptor)(obj, keyName);\n    var setter = descriptor === null ? undefined : descriptor.set;\n\n    if (setter !== undefined && CP_SETTER_FUNCS.has(setter)) {\n      obj[keyName] = value;\n      return value;\n    }\n\n    var currentValue;\n\n    if (true\n    /* DEBUG */\n    && _utils.HAS_NATIVE_PROXY) {\n      currentValue = getPossibleMandatoryProxyValue(obj, keyName);\n    } else {\n      currentValue = obj[keyName];\n    }\n\n    if (currentValue === undefined && 'object' === typeof obj && !(keyName in obj) && typeof obj.setUnknownProperty === 'function') {\n      /* unknown property */\n      obj.setUnknownProperty(keyName, value);\n    } else {\n      if (true\n      /* DEBUG */\n      ) {\n        (0, _utils.setWithMandatorySetter)(obj, keyName, value);\n      } else {\n        obj[keyName] = value;\n      }\n\n      if (currentValue !== value) {\n        notifyPropertyChange(obj, keyName);\n      }\n    }\n\n    return value;\n  }\n\n  function setPath(root, path, value, tolerant) {\n    var parts = path.split('.');\n    var keyName = parts.pop();\n    (true && !(keyName.trim().length > 0) && (0, _debug.assert)('Property set failed: You passed an empty path', keyName.trim().length > 0));\n\n    var newRoot = _getPath(root, parts);\n\n    if (newRoot !== null && newRoot !== undefined) {\n      return set(newRoot, keyName, value);\n    } else if (!tolerant) {\n      throw new _error.default(`Property set failed: object in path \"${parts.join('.')}\" could not be found.`);\n    }\n  }\n  /**\n    Error-tolerant form of `set`. Will not blow up if any part of the\n    chain is `undefined`, `null`, or destroyed.\n  \n    This is primarily used when syncing bindings, which may try to update after\n    an object has been destroyed.\n  \n    ```javascript\n    import { trySet } from '@ember/object';\n  \n    let obj = { name: \"Zoey\" };\n    trySet(obj, \"contacts.twitter\", \"@emberjs\");\n    ```\n  \n    @method trySet\n    @static\n    @for @ember/object\n    @param {Object} root The object to modify.\n    @param {String} path The property path to set\n    @param {Object} value The value to set\n    @public\n  */\n\n\n  function trySet(root, path, value) {\n    return set(root, path, value, true);\n  }\n  /**\n  @module @ember/object\n  */\n\n\n  var DEEP_EACH_REGEX = /\\.@each\\.[^.]+\\./;\n\n  function noop() {}\n  /**\n    `@computed` is a decorator that turns a JavaScript getter and setter into a\n    computed property, which is a _cached, trackable value_. By default the getter\n    will only be called once and the result will be cached. You can specify\n    various properties that your computed property depends on. This will force the\n    cached result to be cleared if the dependencies are modified, and lazily recomputed the next time something asks for it.\n  \n    In the following example we decorate a getter - `fullName` -  by calling\n    `computed` with the property dependencies (`firstName` and `lastName`) as\n    arguments. The `fullName` getter will be called once (regardless of how many\n    times it is accessed) as long as its dependencies do not change. Once\n    `firstName` or `lastName` are updated any future calls to `fullName` will\n    incorporate the new values, and any watchers of the value such as templates\n    will be updated:\n  \n    ```javascript\n    import { computed, set } from '@ember/object';\n  \n    class Person {\n      constructor(firstName, lastName) {\n        set(this, 'firstName', firstName);\n        set(this, 'lastName', lastName);\n      }\n  \n      @computed('firstName', 'lastName')\n      get fullName() {\n        return `${this.firstName} ${this.lastName}`;\n      }\n    });\n  \n    let tom = new Person('Tom', 'Dale');\n  \n    tom.fullName; // 'Tom Dale'\n    ```\n  \n    You can also provide a setter, which will be used when updating the computed\n    property. Ember's `set` function must be used to update the property\n    since it will also notify observers of the property:\n  \n    ```javascript\n    import { computed, set } from '@ember/object';\n  \n    class Person {\n      constructor(firstName, lastName) {\n        set(this, 'firstName', firstName);\n        set(this, 'lastName', lastName);\n      }\n  \n      @computed('firstName', 'lastName')\n      get fullName() {\n        return `${this.firstName} ${this.lastName}`;\n      }\n  \n      set fullName(value) {\n        let [firstName, lastName] = value.split(' ');\n  \n        set(this, 'firstName', firstName);\n        set(this, 'lastName', lastName);\n      }\n    });\n  \n    let person = new Person();\n  \n    set(person, 'fullName', 'Peter Wagenet');\n    person.firstName; // 'Peter'\n    person.lastName;  // 'Wagenet'\n    ```\n  \n    You can also pass a getter function or object with `get` and `set` functions\n    as the last argument to the computed decorator. This allows you to define\n    computed property _macros_:\n  \n    ```js\n    import { computed } from '@ember/object';\n  \n    function join(...keys) {\n      return computed(...keys, function() {\n        return keys.map(key => this[key]).join(' ');\n      });\n    }\n  \n    class Person {\n      @join('firstName', 'lastName')\n      fullName;\n    }\n    ```\n  \n    Note that when defined this way, getters and setters receive the _key_ of the\n    property they are decorating as the first argument. Setters receive the value\n    they are setting to as the second argument instead. Additionally, setters must\n    _return_ the value that should be cached:\n  \n    ```javascript\n    import { computed, set } from '@ember/object';\n  \n    function fullNameMacro(firstNameKey, lastNameKey) {\n      return computed(firstNameKey, lastNameKey, {\n        get() {\n          return `${this[firstNameKey]} ${this[lastNameKey]}`;\n        }\n  \n        set(key, value) {\n          let [firstName, lastName] = value.split(' ');\n  \n          set(this, firstNameKey, firstName);\n          set(this, lastNameKey, lastName);\n  \n          return value;\n        }\n      });\n    }\n  \n    class Person {\n      constructor(firstName, lastName) {\n        set(this, 'firstName', firstName);\n        set(this, 'lastName', lastName);\n      }\n  \n      @fullNameMacro fullName;\n    });\n  \n    let person = new Person();\n  \n    set(person, 'fullName', 'Peter Wagenet');\n    person.firstName; // 'Peter'\n    person.lastName;  // 'Wagenet'\n    ```\n  \n    Computed properties can also be used in classic classes. To do this, we\n    provide the getter and setter as the last argument like we would for a macro,\n    and we assign it to a property on the class definition. This is an _anonymous_\n    computed macro:\n  \n    ```javascript\n    import EmberObject, { computed, set } from '@ember/object';\n  \n    let Person = EmberObject.extend({\n      // these will be supplied by `create`\n      firstName: null,\n      lastName: null,\n  \n      fullName: computed('firstName', 'lastName', {\n        get() {\n          return `${this.firstName} ${this.lastName}`;\n        }\n  \n        set(key, value) {\n          let [firstName, lastName] = value.split(' ');\n  \n          set(this, 'firstName', firstName);\n          set(this, 'lastName', lastName);\n  \n          return value;\n        }\n      })\n    });\n  \n    let tom = Person.create({\n      firstName: 'Tom',\n      lastName: 'Dale'\n    });\n  \n    tom.get('fullName') // 'Tom Dale'\n    ```\n  \n    You can overwrite computed property without setters with a normal property (no\n    longer computed) that won't change if dependencies change. You can also mark\n    computed property as `.readOnly()` and block all attempts to set it.\n  \n    ```javascript\n    import { computed, set } from '@ember/object';\n  \n    class Person {\n      constructor(firstName, lastName) {\n        set(this, 'firstName', firstName);\n        set(this, 'lastName', lastName);\n      }\n  \n      @computed('firstName', 'lastName').readOnly()\n      get fullName() {\n        return `${this.firstName} ${this.lastName}`;\n      }\n    });\n  \n    let person = new Person();\n    person.set('fullName', 'Peter Wagenet'); // Uncaught Error: Cannot set read-only property \"fullName\" on object: <(...):emberXXX>\n    ```\n  \n    Additional resources:\n    - [Decorators RFC](https://github.com/emberjs/rfcs/blob/master/text/0408-decorators.md)\n    - [New CP syntax RFC](https://github.com/emberjs/rfcs/blob/master/text/0011-improved-cp-syntax.md)\n    - [New computed syntax explained in \"Ember 1.12 released\" ](https://emberjs.com/blog/2015/05/13/ember-1-12-released.html#toc_new-computed-syntax)\n  \n    @class ComputedProperty\n    @public\n  */\n\n\n  class ComputedProperty extends ComputedDescriptor {\n    constructor(args) {\n      super();\n      this._volatile = false;\n      this._readOnly = false;\n      this._hasConfig = false;\n      this._getter = undefined;\n      this._setter = undefined;\n      var maybeConfig = args[args.length - 1];\n\n      if (typeof maybeConfig === 'function' || maybeConfig !== null && typeof maybeConfig === 'object') {\n        this._hasConfig = true;\n        var config = args.pop();\n\n        if (typeof config === 'function') {\n          (true && !(!isClassicDecorator(config)) && (0, _debug.assert)(`You attempted to pass a computed property instance to computed(). Computed property instances are decorator functions, and cannot be passed to computed() because they cannot be turned into decorators twice`, !isClassicDecorator(config)));\n          this._getter = config;\n        } else {\n          var objectConfig = config;\n          (true && !(typeof objectConfig === 'object' && !Array.isArray(objectConfig)) && (0, _debug.assert)('computed expects a function or an object as last argument.', typeof objectConfig === 'object' && !Array.isArray(objectConfig)));\n          (true && !(Object.keys(objectConfig).every(key => key === 'get' || key === 'set')) && (0, _debug.assert)('Config object passed to computed can only contain `get` and `set` keys.', Object.keys(objectConfig).every(key => key === 'get' || key === 'set')));\n          (true && !(Boolean(objectConfig.get) || Boolean(objectConfig.set)) && (0, _debug.assert)('Computed properties must receive a getter or a setter, you passed none.', Boolean(objectConfig.get) || Boolean(objectConfig.set)));\n          this._getter = objectConfig.get || noop;\n          this._setter = objectConfig.set;\n        }\n      }\n\n      if (args.length > 0) {\n        this._property(...args);\n      }\n    }\n\n    setup(obj, keyName, propertyDesc, meta$$1) {\n      super.setup(obj, keyName, propertyDesc, meta$$1);\n      (true && !(!(propertyDesc && typeof propertyDesc.value === 'function')) && (0, _debug.assert)(`@computed can only be used on accessors or fields, attempted to use it with ${keyName} but that was a method. Try converting it to a getter (e.g. \\`get ${keyName}() {}\\`)`, !(propertyDesc && typeof propertyDesc.value === 'function')));\n      (true && !(!propertyDesc || !propertyDesc.initializer) && (0, _debug.assert)(`@computed can only be used on empty fields. ${keyName} has an initial value (e.g. \\`${keyName} = someValue\\`)`, !propertyDesc || !propertyDesc.initializer));\n      (true && !(!(this._hasConfig && propertyDesc && (typeof propertyDesc.get === 'function' || typeof propertyDesc.set === 'function'))) && (0, _debug.assert)(`Attempted to apply a computed property that already has a getter/setter to a ${keyName}, but it is a method or an accessor. If you passed @computed a function or getter/setter (e.g. \\`@computed({ get() { ... } })\\`), then it must be applied to a field`, !(this._hasConfig && propertyDesc && (typeof propertyDesc.get === 'function' || typeof propertyDesc.set === 'function'))));\n\n      if (this._hasConfig === false) {\n        (true && !(propertyDesc && (typeof propertyDesc.get === 'function' || typeof propertyDesc.set === 'function')) && (0, _debug.assert)(`Attempted to use @computed on ${keyName}, but it did not have a getter or a setter. You must either pass a get a function or getter/setter to @computed directly (e.g. \\`@computed({ get() { ... } })\\`) or apply @computed directly to a getter/setter`, propertyDesc && (typeof propertyDesc.get === 'function' || typeof propertyDesc.set === 'function')));\n        var {\n          get: _get,\n          set: set$$1\n        } = propertyDesc;\n\n        if (_get !== undefined) {\n          this._getter = _get;\n        }\n\n        if (set$$1 !== undefined) {\n          this._setter = function setterWrapper(_key, value) {\n            var ret = set$$1.call(this, value);\n\n            if (_get !== undefined) {\n              return typeof ret === 'undefined' ? _get.call(this) : ret;\n            }\n\n            return ret;\n          };\n        }\n      }\n    }\n    /**\n      Call on a computed property to set it into non-cached mode. When in this\n      mode the computed property will not automatically cache the return value.\n      It also does not automatically fire any change events. You must manually notify\n      any changes if you want to observe this property.\n         Dependency keys have no effect on volatile properties as they are for cache\n      invalidation and notification when cached value is invalidated.\n         Example:\n         ```javascript\n      import { computed } from '@ember/object';\n         class CallCounter {\n        _calledCount = 0;\n           @computed().volatile()\n        get calledCount() {\n          return this._calledCount++;\n        }\n      }\n      ```\n         Classic Class Example:\n         ```javascript\n      import EmberObject, { computed } from '@ember/object';\n         let CallCounter = EmberObject.extend({\n        _calledCount: 0,\n           value: computed(function() {\n          return this._calledCount++;\n        }).volatile()\n      });\n      ```\n      @method volatile\n      @deprecated\n      @return {ComputedProperty} this\n      @chainable\n      @public\n    */\n\n\n    volatile() {\n      (true && !(false) && (0, _debug.deprecate)('Setting a computed property as volatile has been deprecated. Instead, consider using a native getter with native class syntax.', false, {\n        id: 'computed-property.volatile',\n        until: '4.0.0',\n        url: 'https://emberjs.com/deprecations/v3.x#toc_computed-property-volatile'\n      }));\n      this._volatile = true;\n    }\n    /**\n      Call on a computed property to set it into read-only mode. When in this\n      mode the computed property will throw an error when set.\n         Example:\n         ```javascript\n      import { computed, set } from '@ember/object';\n         class Person {\n        @computed().readOnly()\n        get guid() {\n          return 'guid-guid-guid';\n        }\n      }\n         let person = new Person();\n      set(person, 'guid', 'new-guid'); // will throw an exception\n      ```\n         Classic Class Example:\n         ```javascript\n      import EmberObject, { computed } from '@ember/object';\n         let Person = EmberObject.extend({\n        guid: computed(function() {\n          return 'guid-guid-guid';\n        }).readOnly()\n      });\n         let person = Person.create();\n      person.set('guid', 'new-guid'); // will throw an exception\n      ```\n         @method readOnly\n      @return {ComputedProperty} this\n      @chainable\n      @public\n    */\n\n\n    readOnly() {\n      this._readOnly = true;\n      (true && !(!(this._readOnly && this._setter && this._setter !== this._getter)) && (0, _debug.assert)('Computed properties that define a setter using the new syntax cannot be read-only', !(this._readOnly && this._setter && this._setter !== this._getter)));\n    }\n    /**\n      Sets the dependent keys on this computed property. Pass any number of\n      arguments containing key paths that this computed property depends on.\n         Example:\n         ```javascript\n      import EmberObject, { computed } from '@ember/object';\n         class President {\n        constructor(firstName, lastName) {\n          set(this, 'firstName', firstName);\n          set(this, 'lastName', lastName);\n        }\n           // Tell Ember that this computed property depends on firstName\n        // and lastName\n        @computed().property('firstName', 'lastName')\n        get fullName() {\n          return `${this.firstName} ${this.lastName}`;\n        }\n      }\n         let president = new President('Barack', 'Obama');\n         president.fullName; // 'Barack Obama'\n      ```\n         Classic Class Example:\n         ```javascript\n      import EmberObject, { computed } from '@ember/object';\n         let President = EmberObject.extend({\n        fullName: computed(function() {\n          return this.get('firstName') + ' ' + this.get('lastName');\n             // Tell Ember that this computed property depends on firstName\n          // and lastName\n        }).property('firstName', 'lastName')\n      });\n         let president = President.create({\n        firstName: 'Barack',\n        lastName: 'Obama'\n      });\n         president.get('fullName'); // 'Barack Obama'\n      ```\n         @method property\n      @deprecated\n      @param {String} path* zero or more property paths\n      @return {ComputedProperty} this\n      @chainable\n      @public\n    */\n\n\n    property(...passedArgs) {\n      (true && !(false) && (0, _debug.deprecate)('Setting dependency keys using the `.property()` modifier has been deprecated. Pass the dependency keys directly to computed as arguments instead. If you are using `.property()` on a computed property macro, consider refactoring your macro to receive additional dependent keys in its initial declaration.', false, {\n        id: 'computed-property.property',\n        until: '4.0.0',\n        url: 'https://emberjs.com/deprecations/v3.x#toc_computed-property-property'\n      }));\n\n      this._property(...passedArgs);\n    }\n\n    _property(...passedArgs) {\n      var args = [];\n\n      function addArg(property) {\n        (true && (0, _debug.warn)(`Dependent keys containing @each only work one level deep. ` + `You used the key \"${property}\" which is invalid. ` + `Please create an intermediary computed property.`, DEEP_EACH_REGEX.test(property) === false, {\n          id: 'ember-metal.computed-deep-each'\n        }));\n        args.push(property);\n      }\n\n      for (var i = 0; i < passedArgs.length; i++) {\n        expandProperties(passedArgs[i], addArg);\n      }\n\n      this._dependentKeys = args;\n    }\n    /**\n      In some cases, you may want to annotate computed properties with additional\n      metadata about how they function or what values they operate on. For example,\n      computed property functions may close over variables that are then no longer\n      available for introspection. You can pass a hash of these values to a\n      computed property.\n         Example:\n         ```javascript\n      import { computed } from '@ember/object';\n      import Person from 'my-app/utils/person';\n         class Store {\n        @computed().meta({ type: Person })\n        get person() {\n          let personId = this.personId;\n          return Person.create({ id: personId });\n        }\n      }\n      ```\n         Classic Class Example:\n         ```javascript\n      import { computed } from '@ember/object';\n      import Person from 'my-app/utils/person';\n         const Store = EmberObject.extend({\n        person: computed(function() {\n          let personId = this.get('personId');\n          return Person.create({ id: personId });\n        }).meta({ type: Person })\n      });\n      ```\n         The hash that you pass to the `meta()` function will be saved on the\n      computed property descriptor under the `_meta` key. Ember runtime\n      exposes a public API for retrieving these values from classes,\n      via the `metaForProperty()` function.\n         @method meta\n      @param {Object} meta\n      @chainable\n      @public\n    */\n\n\n    get(obj, keyName) {\n      if (this._volatile) {\n        return this._getter.call(obj, keyName);\n      }\n\n      var cache = getCacheFor(obj);\n      var propertyTag = tagForProperty(obj, keyName);\n      var ret;\n\n      if (cache.has(keyName) && (0, _validator.validateTag)(propertyTag, getLastRevisionFor(obj, keyName))) {\n        ret = cache.get(keyName);\n      } else {\n        // For backwards compatibility, we only throw if the CP has any dependencies. CPs without dependencies\n        // should be allowed, even after the object has been destroyed, which is why we check _dependentKeys.\n        (true && !(this._dependentKeys === undefined || !(0, _meta2.meta)(obj).isMetaDestroyed()) && (0, _debug.assert)(`Attempted to access the computed ${obj}.${keyName} on a destroyed object, which is not allowed`, this._dependentKeys === undefined || !(0, _meta2.meta)(obj).isMetaDestroyed()));\n        var upstreamTag = undefined;\n\n        if (this._auto === true) {\n          upstreamTag = (0, _validator.track)(() => {\n            ret = this._getter.call(obj, keyName);\n          });\n        } else {\n          // Create a tracker that absorbs any trackable actions inside the CP\n          (0, _validator.untrack)(() => {\n            ret = this._getter.call(obj, keyName);\n          });\n        }\n\n        if (this._dependentKeys !== undefined) {\n          var tag = (0, _validator.combine)(getChainTagsForKeys(obj, this._dependentKeys));\n          upstreamTag = upstreamTag === undefined ? tag : (0, _validator.combine)([upstreamTag, tag]);\n        }\n\n        if (upstreamTag !== undefined) {\n          (0, _validator.updateTag)(propertyTag, upstreamTag);\n        }\n\n        setLastRevisionFor(obj, keyName, (0, _validator.valueForTag)(propertyTag));\n        cache.set(keyName, ret);\n        finishLazyChains(obj, keyName, ret);\n      }\n\n      (0, _validator.consumeTag)(propertyTag); // Add the tag of the returned value if it is an array, since arrays\n      // should always cause updates if they are consumed and then changed\n\n      if (Array.isArray(ret) || (0, _utils.isEmberArray)(ret)) {\n        (0, _validator.consumeTag)(tagForProperty(ret, '[]'));\n      }\n\n      return ret;\n    }\n\n    set(obj, keyName, value) {\n      if (this._readOnly) {\n        this._throwReadOnlyError(obj, keyName);\n      }\n\n      if (!this._setter) {\n        return this.clobberSet(obj, keyName, value);\n      }\n\n      if (this._volatile) {\n        return this.volatileSet(obj, keyName, value);\n      }\n\n      var ret;\n\n      try {\n        beginPropertyChanges();\n        ret = this._set(obj, keyName, value);\n        finishLazyChains(obj, keyName, ret);\n        var propertyTag = tagForProperty(obj, keyName);\n\n        if (this._dependentKeys !== undefined) {\n          (0, _validator.updateTag)(propertyTag, (0, _validator.combine)(getChainTagsForKeys(obj, this._dependentKeys)));\n        }\n\n        setLastRevisionFor(obj, keyName, (0, _validator.valueForTag)(propertyTag));\n      } finally {\n        endPropertyChanges();\n      }\n\n      return ret;\n    }\n\n    _throwReadOnlyError(obj, keyName) {\n      throw new _error.default(`Cannot set read-only property \"${keyName}\" on object: ${(0, _utils.inspect)(obj)}`);\n    }\n\n    clobberSet(obj, keyName, value) {\n      (true && !(false) && (0, _debug.deprecate)(`The ${(0, _utils.toString)(obj)}#${keyName} computed property was just overridden. This removes the computed property and replaces it with a plain value, and has been deprecated. If you want this behavior, consider defining a setter which does it manually.`, false, {\n        id: 'computed-property.override',\n        until: '4.0.0',\n        url: 'https://emberjs.com/deprecations/v3.x#toc_computed-property-override'\n      }));\n      var cachedValue = getCachedValueFor(obj, keyName);\n      defineProperty(obj, keyName, null, cachedValue);\n      set(obj, keyName, value);\n      return value;\n    }\n\n    volatileSet(obj, keyName, value) {\n      return this._setter.call(obj, keyName, value);\n    }\n\n    _set(obj, keyName, value) {\n      var cache = getCacheFor(obj);\n      var hadCachedValue = cache.has(keyName);\n      var cachedValue = cache.get(keyName);\n      var ret;\n      setObserverSuspended(obj, keyName, true);\n\n      try {\n        ret = this._setter.call(obj, keyName, value, cachedValue);\n      } finally {\n        setObserverSuspended(obj, keyName, false);\n      } // allows setter to return the same value that is cached already\n\n\n      if (hadCachedValue && cachedValue === ret) {\n        return ret;\n      }\n\n      var meta$$1 = (0, _meta2.meta)(obj);\n      cache.set(keyName, ret);\n      notifyPropertyChange(obj, keyName, meta$$1, value);\n      return ret;\n    }\n    /* called before property is overridden */\n\n\n    teardown(obj, keyName, meta$$1) {\n      if (!this._volatile) {\n        var cache = peekCacheFor(obj);\n\n        if (cache !== undefined) {\n          cache.delete(keyName);\n        }\n      }\n\n      super.teardown(obj, keyName, meta$$1);\n    }\n\n    auto() {\n      this._auto = true;\n    }\n\n  } // TODO: This class can be svelted once `meta` has been deprecated\n\n\n  _exports.ComputedProperty = ComputedProperty;\n\n  class ComputedDecoratorImpl extends Function {\n    readOnly() {\n      descriptorForDecorator(this).readOnly();\n      return this;\n    }\n\n    volatile() {\n      descriptorForDecorator(this).volatile();\n      return this;\n    }\n\n    property(...keys) {\n      descriptorForDecorator(this).property(...keys);\n      return this;\n    }\n\n    meta(meta$$1) {\n      var prop = descriptorForDecorator(this);\n\n      if (arguments.length === 0) {\n        return prop._meta || {};\n      } else {\n        prop._meta = meta$$1;\n        return this;\n      }\n    } // TODO: Remove this when we can provide alternatives in the ecosystem to\n    // addons such as ember-macro-helpers that use it.\n\n\n    get _getter() {\n      return descriptorForDecorator(this)._getter;\n    } // TODO: Refactor this, this is an internal API only\n\n\n    set enumerable(value) {\n      descriptorForDecorator(this).enumerable = value;\n    }\n\n  }\n\n  function computed(...args) {\n    (true && !(!(isElementDescriptor(args.slice(0, 3)) && args.length === 5 && args[4] === true)) && (0, _debug.assert)(`@computed can only be used directly as a native decorator. If you're using tracked in classic classes, add parenthesis to call it like a function: computed()`, !(isElementDescriptor(args.slice(0, 3)) && args.length === 5 && args[4] === true)));\n\n    if (isElementDescriptor(args)) {\n      var decorator = makeComputedDecorator(new ComputedProperty([]), ComputedDecoratorImpl);\n      return decorator(args[0], args[1], args[2]);\n    }\n\n    return makeComputedDecorator(new ComputedProperty(args), ComputedDecoratorImpl);\n  }\n  /**\n    Allows checking if a given property on an object is a computed property. For the most part,\n    this doesn't matter (you would normally just access the property directly and use its value),\n    but for some tooling specific scenarios (e.g. the ember-inspector) it is important to\n    differentiate if a property is a computed property or a \"normal\" property.\n  \n    This will work on either a class's prototype or an instance itself.\n  \n    @static\n    @method isComputed\n    @for @ember/debug\n    @private\n   */\n\n\n  function isComputed(obj, key) {\n    return Boolean(descriptorForProperty(obj, key));\n  }\n\n  var _globalsComputed = computed.bind(null);\n\n  _exports._globalsComputed = _globalsComputed;\n\n  function alias(altKey) {\n    (true && !(!isElementDescriptor(Array.prototype.slice.call(arguments))) && (0, _debug.assert)('You attempted to use @alias as a decorator directly, but it requires a `altKey` parameter', !isElementDescriptor(Array.prototype.slice.call(arguments))));\n    return makeComputedDecorator(new AliasedProperty(altKey), AliasDecoratorImpl);\n  } // TODO: This class can be svelted once `meta` has been deprecated\n\n\n  class AliasDecoratorImpl extends Function {\n    readOnly() {\n      descriptorForDecorator(this).readOnly();\n      return this;\n    }\n\n    oneWay() {\n      descriptorForDecorator(this).oneWay();\n      return this;\n    }\n\n    meta(meta$$1) {\n      var prop = descriptorForDecorator(this);\n\n      if (arguments.length === 0) {\n        return prop._meta || {};\n      } else {\n        prop._meta = meta$$1;\n      }\n    }\n\n  }\n\n  class AliasedProperty extends ComputedDescriptor {\n    constructor(altKey) {\n      super();\n      this.altKey = altKey;\n    }\n\n    setup(obj, keyName, propertyDesc, meta$$1) {\n      (true && !(this.altKey !== keyName) && (0, _debug.assert)(`Setting alias '${keyName}' on self`, this.altKey !== keyName));\n      super.setup(obj, keyName, propertyDesc, meta$$1);\n    }\n\n    teardown(obj, keyName, meta$$1) {\n      super.teardown(obj, keyName, meta$$1);\n    }\n\n    get(obj, keyName) {\n      var ret;\n      var propertyTag = tagForProperty(obj, keyName); // We don't use the tag since CPs are not automatic, we just want to avoid\n      // anything tracking while we get the altKey\n\n      (0, _validator.untrack)(() => {\n        ret = get(obj, this.altKey);\n      });\n      var lastRevision = getLastRevisionFor(obj, keyName);\n\n      if (!(0, _validator.validateTag)(propertyTag, lastRevision)) {\n        (0, _validator.updateTag)(propertyTag, (0, _validator.combine)(getChainTagsForKey(obj, this.altKey)));\n        setLastRevisionFor(obj, keyName, (0, _validator.valueForTag)(propertyTag));\n        finishLazyChains(obj, keyName, ret);\n      }\n\n      (0, _validator.consumeTag)(propertyTag);\n      return ret;\n    }\n\n    set(obj, _keyName, value) {\n      return set(obj, this.altKey, value);\n    }\n\n    readOnly() {\n      this.set = AliasedProperty_readOnlySet;\n    }\n\n    oneWay() {\n      this.set = AliasedProperty_oneWaySet;\n    }\n\n  }\n\n  function AliasedProperty_readOnlySet(obj, keyName) {\n    // eslint-disable-line no-unused-vars\n    throw new _error.default(`Cannot set read-only property '${keyName}' on object: ${(0, _utils.inspect)(obj)}`);\n  }\n\n  function AliasedProperty_oneWaySet(obj, keyName, value) {\n    defineProperty(obj, keyName, null);\n    return set(obj, keyName, value);\n  }\n  /**\n  @module ember\n  */\n\n  /**\n    Used internally to allow changing properties in a backwards compatible way, and print a helpful\n    deprecation warning.\n  \n    @method deprecateProperty\n    @param {Object} object The object to add the deprecated property to.\n    @param {String} deprecatedKey The property to add (and print deprecation warnings upon accessing).\n    @param {String} newKey The property that will be aliased.\n    @private\n    @since 1.7.0\n  */\n\n\n  function deprecateProperty(object, deprecatedKey, newKey, options) {\n    function _deprecate() {\n      (true && !(false) && (0, _debug.deprecate)(`Usage of \\`${deprecatedKey}\\` is deprecated, use \\`${newKey}\\` instead.`, false, options));\n    }\n\n    Object.defineProperty(object, deprecatedKey, {\n      configurable: true,\n      enumerable: false,\n\n      set(value) {\n        _deprecate();\n\n        set(this, newKey, value);\n      },\n\n      get() {\n        _deprecate();\n\n        return get(this, newKey);\n      }\n\n    });\n  }\n\n  var EACH_PROXIES = new WeakMap();\n\n  function eachProxyArrayWillChange(array, idx, removedCnt, addedCnt) {\n    var eachProxy = EACH_PROXIES.get(array);\n\n    if (eachProxy !== undefined) {\n      eachProxy.arrayWillChange(array, idx, removedCnt, addedCnt);\n    }\n  }\n\n  function eachProxyArrayDidChange(array, idx, removedCnt, addedCnt) {\n    var eachProxy = EACH_PROXIES.get(array);\n\n    if (eachProxy !== undefined) {\n      eachProxy.arrayDidChange(array, idx, removedCnt, addedCnt);\n    }\n  }\n  /**\n   @module @ember/utils\n  */\n\n  /**\n    Returns true if the passed value is null or undefined. This avoids errors\n    from JSLint complaining about use of ==, which can be technically\n    confusing.\n  \n    ```javascript\n    isNone();              // true\n    isNone(null);          // true\n    isNone(undefined);     // true\n    isNone('');            // false\n    isNone([]);            // false\n    isNone(function() {}); // false\n    ```\n  \n    @method isNone\n    @static\n    @for @ember/utils\n    @param {Object} obj Value to test\n    @return {Boolean}\n    @public\n  */\n\n\n  function isNone(obj) {\n    return obj === null || obj === undefined;\n  }\n  /**\n   @module @ember/utils\n  */\n\n  /**\n    Verifies that a value is `null` or `undefined`, an empty string, or an empty\n    array.\n  \n    Constrains the rules on `isNone` by returning true for empty strings and\n    empty arrays.\n  \n    If the value is an object with a `size` property of type number, it is used\n    to check emptiness.\n  \n    ```javascript\n    isEmpty();                 // true\n    isEmpty(null);             // true\n    isEmpty(undefined);        // true\n    isEmpty('');               // true\n    isEmpty([]);               // true\n    isEmpty({ size: 0});       // true\n    isEmpty({});               // false\n    isEmpty('Adam Hawkins');   // false\n    isEmpty([0,1,2]);          // false\n    isEmpty('\\n\\t');           // false\n    isEmpty('  ');             // false\n    isEmpty({ size: 1 })       // false\n    isEmpty({ size: () => 0 }) // false\n    ```\n  \n    @method isEmpty\n    @static\n    @for @ember/utils\n    @param {Object} obj Value to test\n    @return {Boolean}\n    @public\n  */\n\n\n  function isEmpty(obj) {\n    var none = obj === null || obj === undefined;\n\n    if (none) {\n      return none;\n    }\n\n    if (typeof obj.size === 'number') {\n      return !obj.size;\n    }\n\n    var objectType = typeof obj;\n\n    if (objectType === 'object') {\n      var size = get(obj, 'size');\n\n      if (typeof size === 'number') {\n        return !size;\n      }\n    }\n\n    if (typeof obj.length === 'number' && objectType !== 'function') {\n      return !obj.length;\n    }\n\n    if (objectType === 'object') {\n      var length = get(obj, 'length');\n\n      if (typeof length === 'number') {\n        return !length;\n      }\n    }\n\n    return false;\n  }\n  /**\n   @module @ember/utils\n  */\n\n  /**\n    A value is blank if it is empty or a whitespace string.\n  \n    ```javascript\n    import { isBlank } from '@ember/utils';\n  \n    isBlank();                // true\n    isBlank(null);            // true\n    isBlank(undefined);       // true\n    isBlank('');              // true\n    isBlank([]);              // true\n    isBlank('\\n\\t');          // true\n    isBlank('  ');            // true\n    isBlank({});              // false\n    isBlank('\\n\\t Hello');    // false\n    isBlank('Hello world');   // false\n    isBlank([1,2,3]);         // false\n    ```\n  \n    @method isBlank\n    @static\n    @for @ember/utils\n    @param {Object} obj Value to test\n    @return {Boolean}\n    @since 1.5.0\n    @public\n  */\n\n\n  function isBlank(obj) {\n    return isEmpty(obj) || typeof obj === 'string' && /\\S/.test(obj) === false;\n  }\n  /**\n   @module @ember/utils\n  */\n\n  /**\n    A value is present if it not `isBlank`.\n  \n    ```javascript\n    isPresent();                // false\n    isPresent(null);            // false\n    isPresent(undefined);       // false\n    isPresent('');              // false\n    isPresent('  ');            // false\n    isPresent('\\n\\t');          // false\n    isPresent([]);              // false\n    isPresent({ length: 0 });   // false\n    isPresent(false);           // true\n    isPresent(true);            // true\n    isPresent('string');        // true\n    isPresent(0);               // true\n    isPresent(function() {});   // true\n    isPresent({});              // true\n    isPresent('\\n\\t Hello');    // true\n    isPresent([1, 2, 3]);       // true\n    ```\n  \n    @method isPresent\n    @static\n    @for @ember/utils\n    @param {Object} obj Value to test\n    @return {Boolean}\n    @since 1.8.0\n    @public\n  */\n\n\n  function isPresent(obj) {\n    return !isBlank(obj);\n  }\n  /**\n   @module ember\n  */\n\n  /**\n    Helper class that allows you to register your library with Ember.\n  \n    Singleton created at `Ember.libraries`.\n  \n    @class Libraries\n    @constructor\n    @private\n  */\n\n\n  class Libraries {\n    constructor() {\n      this._registry = [];\n      this._coreLibIndex = 0;\n    }\n\n    _getLibraryByName(name) {\n      var libs = this._registry;\n      var count = libs.length;\n\n      for (var i = 0; i < count; i++) {\n        if (libs[i].name === name) {\n          return libs[i];\n        }\n      }\n\n      return undefined;\n    }\n\n    register(name, version, isCoreLibrary) {\n      var index = this._registry.length;\n\n      if (!this._getLibraryByName(name)) {\n        if (isCoreLibrary) {\n          index = this._coreLibIndex++;\n        }\n\n        this._registry.splice(index, 0, {\n          name,\n          version\n        });\n      } else {\n        (true && (0, _debug.warn)(`Library \"${name}\" is already registered with Ember.`, false, {\n          id: 'ember-metal.libraries-register'\n        }));\n      }\n    }\n\n    registerCoreLibrary(name, version) {\n      this.register(name, version, true);\n    }\n\n    deRegister(name) {\n      var lib = this._getLibraryByName(name);\n\n      var index;\n\n      if (lib) {\n        index = this._registry.indexOf(lib);\n\n        this._registry.splice(index, 1);\n      }\n    }\n\n  }\n\n  _exports.Libraries = Libraries;\n\n  if (true\n  /* DEBUG */\n  ) {\n    Libraries.prototype.logVersions = function () {\n      var libs = this._registry;\n      var nameLengths = libs.map(item => get(item, 'name.length'));\n      var maxNameLength = Math.max.apply(null, nameLengths);\n      (0, _debug.debug)('-------------------------------');\n\n      for (var i = 0; i < libs.length; i++) {\n        var lib = libs[i];\n        var spaces = new Array(maxNameLength - lib.name.length + 1).join(' ');\n        (0, _debug.debug)([lib.name, spaces, ' : ', lib.version].join(''));\n      }\n\n      (0, _debug.debug)('-------------------------------');\n    };\n  }\n\n  var LIBRARIES = new Libraries();\n  _exports.libraries = LIBRARIES;\n  LIBRARIES.registerCoreLibrary('Ember', _version.default);\n  /**\n   @module @ember/object\n  */\n\n  /**\n    To get multiple properties at once, call `getProperties`\n    with an object followed by a list of strings or an array:\n  \n    ```javascript\n    import { getProperties } from '@ember/object';\n  \n    getProperties(record, 'firstName', 'lastName', 'zipCode');\n    // { firstName: 'John', lastName: 'Doe', zipCode: '10011' }\n    ```\n  \n    is equivalent to:\n  \n    ```javascript\n    import { getProperties } from '@ember/object';\n  \n    getProperties(record, ['firstName', 'lastName', 'zipCode']);\n    // { firstName: 'John', lastName: 'Doe', zipCode: '10011' }\n    ```\n  \n    @method getProperties\n    @static\n    @for @ember/object\n    @param {Object} obj\n    @param {String...|Array} list of keys to get\n    @return {Object}\n    @public\n  */\n\n  function getProperties(obj, keys) {\n    var ret = {};\n    var propertyNames = arguments;\n    var i = 1;\n\n    if (arguments.length === 2 && Array.isArray(keys)) {\n      i = 0;\n      propertyNames = arguments[1];\n    }\n\n    for (; i < propertyNames.length; i++) {\n      ret[propertyNames[i]] = get(obj, propertyNames[i]);\n    }\n\n    return ret;\n  }\n  /**\n   @module @ember/object\n  */\n\n  /**\n    Set a list of properties on an object. These properties are set inside\n    a single `beginPropertyChanges` and `endPropertyChanges` batch, so\n    observers will be buffered.\n  \n    ```javascript\n    import EmberObject from '@ember/object';\n    let anObject = EmberObject.create();\n  \n    anObject.setProperties({\n      firstName: 'Stanley',\n      lastName: 'Stuart',\n      age: 21\n    });\n    ```\n  \n    @method setProperties\n    @static\n    @for @ember/object\n    @param obj\n    @param {Object} properties\n    @return properties\n    @public\n  */\n\n\n  function setProperties(obj, properties) {\n    if (properties === null || typeof properties !== 'object') {\n      return properties;\n    }\n\n    changeProperties(() => {\n      var props = Object.keys(properties);\n      var propertyName;\n\n      for (var i = 0; i < props.length; i++) {\n        propertyName = props[i];\n        set(obj, propertyName, properties[propertyName]);\n      }\n    });\n    return properties;\n  }\n  /**\n    Enqueues finalization on an object so that it can be garbage collected.\n    Multiple calls will have no effect.\n  \n    @method destroy\n    @for Ember\n    @param {Object} obj the object to destroy\n    @return {boolean} true if the object went from not destroying to destroying.\n    @private\n  */\n\n\n  function destroy(obj) {\n    (true && !(obj !== null) && (0, _debug.assert)('Cannot call `destroy` on null', obj !== null));\n    (true && !(obj !== undefined) && (0, _debug.assert)('Cannot call `destroy` on undefined', obj !== undefined));\n    (true && !(typeof obj === 'object' || typeof obj === 'function') && (0, _debug.assert)(`Cannot call \\`destroy\\` on ${typeof obj}`, typeof obj === 'object' || typeof obj === 'function'));\n    var m = (0, _meta3.peekMeta)(obj);\n\n    if (m === null || m.isSourceDestroying()) {\n      return false;\n    }\n\n    m.setSourceDestroying();\n    destroyObservers(obj);\n    (0, _runloop.schedule)('destroy', m, finalize);\n    return true;\n  }\n\n  function finalize() {\n    this.setSourceDestroyed();\n    this.destroy();\n  } // move into its own package\n  // it is needed by Mixin for classToString\n  // maybe move it into environment\n\n\n  var hasOwnProperty = Object.prototype.hasOwnProperty;\n  var searchDisabled = false;\n  var flags = {\n    _set: 0,\n    _unprocessedNamespaces: false,\n\n    get unprocessedNamespaces() {\n      return this._unprocessedNamespaces;\n    },\n\n    set unprocessedNamespaces(v) {\n      this._set++;\n      this._unprocessedNamespaces = v;\n    }\n\n  };\n  var unprocessedMixins = false;\n  var NAMESPACES = [];\n  _exports.NAMESPACES = NAMESPACES;\n  var NAMESPACES_BY_ID = Object.create(null);\n  _exports.NAMESPACES_BY_ID = NAMESPACES_BY_ID;\n\n  function addNamespace(namespace) {\n    flags.unprocessedNamespaces = true;\n    NAMESPACES.push(namespace);\n  }\n\n  function removeNamespace(namespace) {\n    var name = (0, _utils.getName)(namespace);\n    delete NAMESPACES_BY_ID[name];\n    NAMESPACES.splice(NAMESPACES.indexOf(namespace), 1);\n\n    if (name in _environment.context.lookup && namespace === _environment.context.lookup[name]) {\n      _environment.context.lookup[name] = undefined;\n    }\n  }\n\n  function findNamespaces() {\n    if (!flags.unprocessedNamespaces) {\n      return;\n    }\n\n    var lookup = _environment.context.lookup;\n    var keys = Object.keys(lookup);\n\n    for (var i = 0; i < keys.length; i++) {\n      var key = keys[i]; // Only process entities that start with uppercase A-Z\n\n      if (!isUppercase(key.charCodeAt(0))) {\n        continue;\n      }\n\n      var obj = tryIsNamespace(lookup, key);\n\n      if (obj) {\n        (0, _utils.setName)(obj, key);\n      }\n    }\n  }\n\n  function findNamespace(name) {\n    if (!searchDisabled) {\n      processAllNamespaces();\n    }\n\n    return NAMESPACES_BY_ID[name];\n  }\n\n  function processNamespace(namespace) {\n    _processNamespace([namespace.toString()], namespace, new Set());\n  }\n\n  function processAllNamespaces() {\n    var unprocessedNamespaces = flags.unprocessedNamespaces;\n\n    if (unprocessedNamespaces) {\n      findNamespaces();\n      flags.unprocessedNamespaces = false;\n    }\n\n    if (unprocessedNamespaces || unprocessedMixins) {\n      var namespaces = NAMESPACES;\n\n      for (var i = 0; i < namespaces.length; i++) {\n        processNamespace(namespaces[i]);\n      }\n\n      unprocessedMixins = false;\n    }\n  }\n\n  function classToString() {\n    var name = (0, _utils.getName)(this);\n\n    if (name !== void 0) {\n      return name;\n    }\n\n    name = calculateToString(this);\n    (0, _utils.setName)(this, name);\n    return name;\n  }\n\n  function isSearchDisabled() {\n    return searchDisabled;\n  }\n\n  function setSearchDisabled(flag) {\n    searchDisabled = Boolean(flag);\n  }\n\n  function setUnprocessedMixins() {\n    unprocessedMixins = true;\n  }\n\n  function _processNamespace(paths, root, seen) {\n    var idx = paths.length;\n    var id = paths.join('.');\n    NAMESPACES_BY_ID[id] = root;\n    (0, _utils.setName)(root, id); // Loop over all of the keys in the namespace, looking for classes\n\n    for (var key in root) {\n      if (!hasOwnProperty.call(root, key)) {\n        continue;\n      }\n\n      var obj = root[key]; // If we are processing the `Ember` namespace, for example, the\n      // `paths` will start with `[\"Ember\"]`. Every iteration through\n      // the loop will update the **second** element of this list with\n      // the key, so processing `Ember.View` will make the Array\n      // `['Ember', 'View']`.\n\n      paths[idx] = key; // If we have found an unprocessed class\n\n      if (obj && obj.toString === classToString && (0, _utils.getName)(obj) === void 0) {\n        // Replace the class' `toString` with the dot-separated path\n        (0, _utils.setName)(obj, paths.join('.')); // Support nested namespaces\n      } else if (obj && obj.isNamespace) {\n        // Skip aliased namespaces\n        if (seen.has(obj)) {\n          continue;\n        }\n\n        seen.add(obj); // Process the child namespace\n\n        _processNamespace(paths, obj, seen);\n      }\n    }\n\n    paths.length = idx; // cut out last item\n  }\n\n  function isUppercase(code) {\n    return code >= 65 && code <= 90 // A\n    ; // Z\n  }\n\n  function tryIsNamespace(lookup, prop) {\n    try {\n      var obj = lookup[prop];\n      return (obj !== null && typeof obj === 'object' || typeof obj === 'function') && obj.isNamespace && obj;\n    } catch (e) {// continue\n    }\n  }\n\n  function calculateToString(target) {\n    var str;\n\n    if (!searchDisabled) {\n      processAllNamespaces();\n      str = (0, _utils.getName)(target);\n\n      if (str !== void 0) {\n        return str;\n      }\n\n      var superclass = target;\n\n      do {\n        superclass = Object.getPrototypeOf(superclass);\n\n        if (superclass === Function.prototype || superclass === Object.prototype) {\n          break;\n        }\n\n        str = (0, _utils.getName)(target);\n\n        if (str !== void 0) {\n          str = `(subclass of ${str})`;\n          break;\n        }\n      } while (str === void 0);\n    }\n\n    return str || '(unknown)';\n  }\n  /**\n  @module @ember/object\n  */\n\n\n  var a_concat = Array.prototype.concat;\n  var {\n    isArray\n  } = Array;\n\n  function isMethod(obj) {\n    return 'function' === typeof obj && obj.isMethod !== false && obj !== Boolean && obj !== Object && obj !== Number && obj !== Array && obj !== Date && obj !== String;\n  }\n\n  function isAccessor(desc) {\n    return typeof desc.get === 'function' || typeof desc.set === 'function';\n  }\n\n  function extractAccessors(properties) {\n    if (properties !== undefined) {\n      var descriptors = (0, _utils.getOwnPropertyDescriptors)(properties);\n      var keys = Object.keys(descriptors);\n      var hasAccessors = keys.some(key => isAccessor(descriptors[key]));\n\n      if (hasAccessors) {\n        var extracted = {};\n        keys.forEach(key => {\n          var descriptor = descriptors[key];\n\n          if (isAccessor(descriptor)) {\n            extracted[key] = nativeDescDecorator(descriptor);\n          } else {\n            extracted[key] = properties[key];\n          }\n        });\n        return extracted;\n      }\n    }\n\n    return properties;\n  }\n\n  var CONTINUE = {};\n\n  function mixinProperties(mixinsMeta, mixin) {\n    if (mixin instanceof Mixin) {\n      if (mixinsMeta.hasMixin(mixin)) {\n        return CONTINUE;\n      }\n\n      mixinsMeta.addMixin(mixin);\n      return mixin.properties;\n    } else {\n      return mixin; // apply anonymous mixin properties\n    }\n  }\n\n  function concatenatedMixinProperties(concatProp, props, values, base) {\n    // reset before adding each new mixin to pickup concats from previous\n    var concats = values[concatProp] || base[concatProp];\n\n    if (props[concatProp]) {\n      concats = concats ? a_concat.call(concats, props[concatProp]) : props[concatProp];\n    }\n\n    return concats;\n  }\n\n  function giveDecoratorSuper(meta$$1, key, decorator, values, descs, base) {\n    var property = descriptorForDecorator(decorator);\n    var superProperty;\n\n    if (!(property instanceof ComputedProperty) || property._getter === undefined) {\n      return decorator;\n    } // Computed properties override methods, and do not call super to them\n\n\n    if (values[key] === undefined) {\n      // Find the original descriptor in a parent mixin\n      superProperty = descriptorForDecorator(descs[key]);\n    } // If we didn't find the original descriptor in a parent mixin, find\n    // it on the original object.\n\n\n    if (!superProperty) {\n      superProperty = descriptorForProperty(base, key, meta$$1);\n    }\n\n    if (superProperty === undefined || !(superProperty instanceof ComputedProperty)) {\n      return decorator;\n    }\n\n    var get = (0, _utils.wrap)(property._getter, superProperty._getter);\n    var set;\n\n    if (superProperty._setter) {\n      if (property._setter) {\n        set = (0, _utils.wrap)(property._setter, superProperty._setter);\n      } else {\n        // If the super property has a setter, we default to using it no matter what.\n        // This is clearly very broken and weird, but it's what was here so we have\n        // to keep it until the next major at least.\n        //\n        // TODO: Add a deprecation here.\n        set = superProperty._setter;\n      }\n    } else {\n      set = property._setter;\n    } // only create a new CP if we must\n\n\n    if (get !== property._getter || set !== property._setter) {\n      // Since multiple mixins may inherit from the same parent, we need\n      // to clone the computed property so that other mixins do not receive\n      // the wrapped version.\n      var newProperty = Object.create(property);\n      newProperty._getter = get;\n      newProperty._setter = set;\n      return makeComputedDecorator(newProperty, ComputedProperty);\n    }\n\n    return decorator;\n  }\n\n  function giveMethodSuper(obj, key, method, values, descs) {\n    // Methods overwrite computed properties, and do not call super to them.\n    if (descs[key] !== undefined) {\n      return method;\n    } // Find the original method in a parent mixin\n\n\n    var superMethod = values[key]; // If we didn't find the original value in a parent mixin, find it in\n    // the original object\n\n    if (superMethod === undefined && descriptorForProperty(obj, key) === undefined) {\n      superMethod = obj[key];\n    } // Only wrap the new method if the original method was a function\n\n\n    if (typeof superMethod === 'function') {\n      return (0, _utils.wrap)(method, superMethod);\n    }\n\n    return method;\n  }\n\n  function applyConcatenatedProperties(obj, key, value, values) {\n    var baseValue = values[key] || obj[key];\n    var ret = (0, _utils.makeArray)(baseValue).concat((0, _utils.makeArray)(value));\n\n    if (true\n    /* DEBUG */\n    ) {\n      // it is possible to use concatenatedProperties with strings (which cannot be frozen)\n      // only freeze objects...\n      if (typeof ret === 'object' && ret !== null) {\n        // prevent mutating `concatenatedProperties` array after it is applied\n        Object.freeze(ret);\n      }\n    }\n\n    return ret;\n  }\n\n  function applyMergedProperties(obj, key, value, values) {\n    var baseValue = values[key] || obj[key];\n    (true && !(!isArray(value)) && (0, _debug.assert)(`You passed in \\`${JSON.stringify(value)}\\` as the value for \\`${key}\\` but \\`${key}\\` cannot be an Array`, !isArray(value)));\n\n    if (!baseValue) {\n      return value;\n    }\n\n    var newBase = (0, _polyfills.assign)({}, baseValue);\n    var hasFunction = false;\n\n    for (var prop in value) {\n      if (!value.hasOwnProperty(prop)) {\n        continue;\n      }\n\n      var propValue = value[prop];\n\n      if (isMethod(propValue)) {\n        // TODO: support for Computed Properties, etc?\n        hasFunction = true;\n        newBase[prop] = giveMethodSuper(obj, prop, propValue, baseValue, {});\n      } else {\n        newBase[prop] = propValue;\n      }\n    }\n\n    if (hasFunction) {\n      newBase._super = _utils.ROOT;\n    }\n\n    return newBase;\n  }\n\n  function addNormalizedProperty(base, key, value, meta$$1, descs, values, concats, mergings) {\n    if (isClassicDecorator(value)) {\n      // Wrap descriptor function to implement _super() if needed\n      descs[key] = giveDecoratorSuper(meta$$1, key, value, values, descs, base);\n      values[key] = undefined;\n    } else {\n      if (concats && concats.indexOf(key) >= 0 || key === 'concatenatedProperties' || key === 'mergedProperties') {\n        value = applyConcatenatedProperties(base, key, value, values);\n      } else if (mergings && mergings.indexOf(key) > -1) {\n        value = applyMergedProperties(base, key, value, values);\n      } else if (isMethod(value)) {\n        value = giveMethodSuper(base, key, value, values, descs);\n      }\n\n      descs[key] = undefined;\n      values[key] = value;\n    }\n  }\n\n  function mergeMixins(mixins, meta$$1, descs, values, base, keys) {\n    var currentMixin, props, key, concats, mergings;\n\n    function removeKeys(keyName) {\n      delete descs[keyName];\n      delete values[keyName];\n    }\n\n    for (var i = 0; i < mixins.length; i++) {\n      currentMixin = mixins[i];\n      (true && !(typeof currentMixin === 'object' && currentMixin !== null && Object.prototype.toString.call(currentMixin) !== '[object Array]') && (0, _debug.assert)(`Expected hash or Mixin instance, got ${Object.prototype.toString.call(currentMixin)}`, typeof currentMixin === 'object' && currentMixin !== null && Object.prototype.toString.call(currentMixin) !== '[object Array]'));\n      props = mixinProperties(meta$$1, currentMixin);\n\n      if (props === CONTINUE) {\n        continue;\n      }\n\n      if (props) {\n        // remove willMergeMixin after 3.4 as it was used for _actions\n        if (base.willMergeMixin) {\n          base.willMergeMixin(props);\n        }\n\n        concats = concatenatedMixinProperties('concatenatedProperties', props, values, base);\n        mergings = concatenatedMixinProperties('mergedProperties', props, values, base);\n\n        for (key in props) {\n          if (!props.hasOwnProperty(key)) {\n            continue;\n          }\n\n          keys.push(key);\n          addNormalizedProperty(base, key, props[key], meta$$1, descs, values, concats, mergings);\n        } // manually copy toString() because some JS engines do not enumerate it\n\n\n        if (props.hasOwnProperty('toString')) {\n          base.toString = props.toString;\n        }\n      } else if (currentMixin.mixins) {\n        mergeMixins(currentMixin.mixins, meta$$1, descs, values, base, keys);\n\n        if (currentMixin._without) {\n          currentMixin._without.forEach(removeKeys);\n        }\n      }\n    }\n  }\n\n  var followMethodAlias;\n\n  if (_deprecatedFeatures.ALIAS_METHOD) {\n    followMethodAlias = function (obj, alias, descs, values) {\n      var altKey = alias.methodName;\n      var possibleDesc;\n      var desc = descs[altKey];\n      var value = values[altKey];\n\n      if (desc !== undefined || value !== undefined) {// do nothing\n      } else if ((possibleDesc = descriptorForProperty(obj, altKey)) !== undefined) {\n        desc = possibleDesc;\n        value = undefined;\n      } else {\n        desc = undefined;\n        value = obj[altKey];\n      }\n\n      return {\n        desc,\n        value\n      };\n    };\n  }\n\n  function updateObserversAndListeners(obj, key, fn, add) {\n    var observers = (0, _utils.getObservers)(fn);\n    var listeners = (0, _utils.getListeners)(fn);\n\n    if (observers !== undefined) {\n      var updateObserver = add ? addObserver : removeObserver;\n\n      for (var i = 0; i < observers.paths.length; i++) {\n        updateObserver(obj, observers.paths[i], null, key, observers.sync);\n      }\n    }\n\n    if (listeners !== undefined) {\n      var updateListener = add ? addListener : removeListener;\n\n      for (var _i = 0; _i < listeners.length; _i++) {\n        updateListener(obj, listeners[_i], null, key);\n      }\n    }\n  }\n\n  function replaceObserversAndListeners(obj, key, prev, next) {\n    if (typeof prev === 'function') {\n      updateObserversAndListeners(obj, key, prev, false);\n    }\n\n    if (typeof next === 'function') {\n      updateObserversAndListeners(obj, key, next, true);\n    }\n  }\n\n  function applyMixin(obj, mixins) {\n    var descs = {};\n    var values = {};\n    var meta$$1 = (0, _meta2.meta)(obj);\n    var keys = [];\n    var key, value, desc;\n    obj._super = _utils.ROOT; // Go through all mixins and hashes passed in, and:\n    //\n    // * Handle concatenated properties\n    // * Handle merged properties\n    // * Set up _super wrapping if necessary\n    // * Set up computed property descriptors\n    // * Copying `toString` in broken browsers\n\n    mergeMixins(mixins, meta$$1, descs, values, obj, keys);\n\n    for (var i = 0; i < keys.length; i++) {\n      key = keys[i];\n\n      if (key === 'constructor' || !values.hasOwnProperty(key)) {\n        continue;\n      }\n\n      desc = descs[key];\n      value = values[key];\n\n      if (_deprecatedFeatures.ALIAS_METHOD) {\n        while (value && value instanceof AliasImpl) {\n          var followed = followMethodAlias(obj, value, descs, values);\n          desc = followed.desc;\n          value = followed.value;\n        }\n      }\n\n      if (desc === undefined && value === undefined) {\n        continue;\n      }\n\n      if (descriptorForProperty(obj, key) !== undefined) {\n        replaceObserversAndListeners(obj, key, null, value);\n      } else {\n        replaceObserversAndListeners(obj, key, obj[key], value);\n      }\n\n      defineProperty(obj, key, desc, value, meta$$1);\n    }\n\n    return obj;\n  }\n  /**\n    @method mixin\n    @param obj\n    @param mixins*\n    @return obj\n    @private\n  */\n\n\n  function mixin(obj, ...args) {\n    applyMixin(obj, args);\n    return obj;\n  }\n  /**\n    The `Mixin` class allows you to create mixins, whose properties can be\n    added to other classes. For instance,\n  \n    ```javascript\n    import Mixin from '@ember/object/mixin';\n  \n    const EditableMixin = Mixin.create({\n      edit() {\n        console.log('starting to edit');\n        this.set('isEditing', true);\n      },\n      isEditing: false\n    });\n    ```\n  \n    ```javascript\n    import EmberObject from '@ember/object';\n    import EditableMixin from '../mixins/editable';\n  \n    // Mix mixins into classes by passing them as the first arguments to\n    // `.extend.`\n    const Comment = EmberObject.extend(EditableMixin, {\n      post: null\n    });\n  \n    let comment = Comment.create({\n      post: somePost\n    });\n  \n    comment.edit(); // outputs 'starting to edit'\n    ```\n  \n    Note that Mixins are created with `Mixin.create`, not\n    `Mixin.extend`.\n  \n    Note that mixins extend a constructor's prototype so arrays and object literals\n    defined as properties will be shared amongst objects that implement the mixin.\n    If you want to define a property in a mixin that is not shared, you can define\n    it either as a computed property or have it be created on initialization of the object.\n  \n    ```javascript\n    // filters array will be shared amongst any object implementing mixin\n    import Mixin from '@ember/object/mixin';\n    import { A } from '@ember/array';\n  \n    const FilterableMixin = Mixin.create({\n      filters: A()\n    });\n    ```\n  \n    ```javascript\n    import Mixin from '@ember/object/mixin';\n    import { A } from '@ember/array';\n    import { computed } from '@ember/object';\n  \n    // filters will be a separate array for every object implementing the mixin\n    const FilterableMixin = Mixin.create({\n      filters: computed(function() {\n        return A();\n      })\n    });\n    ```\n  \n    ```javascript\n    import Mixin from '@ember/object/mixin';\n    import { A } from '@ember/array';\n  \n    // filters will be created as a separate array during the object's initialization\n    const Filterable = Mixin.create({\n      filters: null,\n  \n      init() {\n        this._super(...arguments);\n        this.set(\"filters\", A());\n      }\n    });\n    ```\n  \n    @class Mixin\n    @public\n  */\n\n\n  class Mixin {\n    constructor(mixins, properties) {\n      this.properties = extractAccessors(properties);\n      this.mixins = buildMixinsArray(mixins);\n      this.ownerConstructor = undefined;\n      this._without = undefined;\n\n      if (true\n      /* DEBUG */\n      ) {\n        /*\n          In debug builds, we seal mixins to help avoid performance pitfalls.\n                 In IE11 there is a quirk that prevents sealed objects from being added\n          to a WeakMap. Unfortunately, the mixin system currently relies on\n          weak maps in `guidFor`, so we need to prime the guid cache weak map.\n        */\n        (0, _utils.guidFor)(this);\n        Object.seal(this);\n      }\n    }\n    /**\n      @method create\n      @for @ember/object/mixin\n      @static\n      @param arguments*\n      @public\n    */\n\n\n    static create(...args) {\n      // ES6TODO: this relies on a global state?\n      setUnprocessedMixins();\n      var M = this;\n      return new M(args, undefined);\n    } // returns the mixins currently applied to the specified object\n    // TODO: Make `mixin`\n\n\n    static mixins(obj) {\n      var meta$$1 = (0, _meta2.peekMeta)(obj);\n      var ret = [];\n\n      if (meta$$1 === null) {\n        return ret;\n      }\n\n      meta$$1.forEachMixins(currentMixin => {\n        // skip primitive mixins since these are always anonymous\n        if (!currentMixin.properties) {\n          ret.push(currentMixin);\n        }\n      });\n      return ret;\n    }\n    /**\n      @method reopen\n      @param arguments*\n      @private\n    */\n\n\n    reopen(...args) {\n      if (args.length === 0) {\n        return;\n      }\n\n      if (this.properties) {\n        var currentMixin = new Mixin(undefined, this.properties);\n        this.properties = undefined;\n        this.mixins = [currentMixin];\n      } else if (!this.mixins) {\n        this.mixins = [];\n      }\n\n      this.mixins = this.mixins.concat(buildMixinsArray(args));\n      return this;\n    }\n    /**\n      @method apply\n      @param obj\n      @return applied object\n      @private\n    */\n\n\n    apply(obj) {\n      return applyMixin(obj, [this]);\n    }\n\n    applyPartial(obj) {\n      return applyMixin(obj, [this]);\n    }\n    /**\n      @method detect\n      @param obj\n      @return {Boolean}\n      @private\n    */\n\n\n    detect(obj) {\n      if (typeof obj !== 'object' || obj === null) {\n        return false;\n      }\n\n      if (obj instanceof Mixin) {\n        return _detect(obj, this);\n      }\n\n      var meta$$1 = (0, _meta2.peekMeta)(obj);\n\n      if (meta$$1 === null) {\n        return false;\n      }\n\n      return meta$$1.hasMixin(this);\n    }\n\n    without(...args) {\n      var ret = new Mixin([this]);\n      ret._without = args;\n      return ret;\n    }\n\n    keys() {\n      return _keys(this);\n    }\n\n    toString() {\n      return '(unknown mixin)';\n    }\n\n  }\n\n  _exports.Mixin = Mixin;\n\n  function buildMixinsArray(mixins) {\n    var length = mixins && mixins.length || 0;\n    var m = undefined;\n\n    if (length > 0) {\n      m = new Array(length);\n\n      for (var i = 0; i < length; i++) {\n        var x = mixins[i];\n        (true && !(typeof x === 'object' && x !== null && Object.prototype.toString.call(x) !== '[object Array]') && (0, _debug.assert)(`Expected hash or Mixin instance, got ${Object.prototype.toString.call(x)}`, typeof x === 'object' && x !== null && Object.prototype.toString.call(x) !== '[object Array]'));\n\n        if (x instanceof Mixin) {\n          m[i] = x;\n        } else {\n          m[i] = new Mixin(undefined, x);\n        }\n      }\n    }\n\n    return m;\n  }\n\n  Mixin.prototype.toString = classToString;\n\n  if (true\n  /* DEBUG */\n  ) {\n    Object.seal(Mixin.prototype);\n  }\n\n  function _detect(curMixin, targetMixin, seen = new Set()) {\n    if (seen.has(curMixin)) {\n      return false;\n    }\n\n    seen.add(curMixin);\n\n    if (curMixin === targetMixin) {\n      return true;\n    }\n\n    var mixins = curMixin.mixins;\n\n    if (mixins) {\n      return mixins.some(mixin => _detect(mixin, targetMixin, seen));\n    }\n\n    return false;\n  }\n\n  function _keys(mixin, ret = new Set(), seen = new Set()) {\n    if (seen.has(mixin)) {\n      return;\n    }\n\n    seen.add(mixin);\n\n    if (mixin.properties) {\n      var props = Object.keys(mixin.properties);\n\n      for (var i = 0; i < props.length; i++) {\n        ret.add(props[i]);\n      }\n    } else if (mixin.mixins) {\n      mixin.mixins.forEach(x => _keys(x, ret, seen));\n    }\n\n    return ret;\n  }\n\n  var AliasImpl;\n\n  if (_deprecatedFeatures.ALIAS_METHOD) {\n    AliasImpl = class AliasImpl {\n      constructor(methodName) {\n        this.methodName = methodName;\n      }\n\n    };\n  }\n  /**\n    Makes a method available via an additional name.\n  \n    ```app/utils/person.js\n    import EmberObject, {\n      aliasMethod\n    } from '@ember/object';\n  \n    export default EmberObject.extend({\n      name() {\n        return 'Tomhuda Katzdale';\n      },\n      moniker: aliasMethod('name')\n    });\n    ```\n  \n    ```javascript\n    let goodGuy = Person.create();\n  \n    goodGuy.name();    // 'Tomhuda Katzdale'\n    goodGuy.moniker(); // 'Tomhuda Katzdale'\n    ```\n  \n    @method aliasMethod\n    @static\n    @deprecated Use a shared utility method instead\n    @for @ember/object\n    @param {String} methodName name of the method to alias\n    @public\n  */\n\n\n  var aliasMethod;\n  _exports.aliasMethod = aliasMethod;\n\n  if (_deprecatedFeatures.ALIAS_METHOD) {\n    _exports.aliasMethod = aliasMethod = function aliasMethod(methodName) {\n      (true && !(false) && (0, _debug.deprecate)(`You attempted to alias '${methodName}, but aliasMethod has been deprecated. Consider extracting the method into a shared utility function.`, false, {\n        id: 'object.alias-method',\n        until: '4.0.0',\n        url: 'https://emberjs.com/deprecations/v3.x#toc_object-alias-method'\n      }));\n      return new AliasImpl(methodName);\n    };\n  }\n\n  function observer(...args) {\n    var funcOrDef = args.pop();\n    (true && !(typeof funcOrDef === 'function' || typeof funcOrDef === 'object' && funcOrDef !== null) && (0, _debug.assert)('observer must be provided a function or an observer definition', typeof funcOrDef === 'function' || typeof funcOrDef === 'object' && funcOrDef !== null));\n    var func, dependentKeys, sync;\n\n    if (typeof funcOrDef === 'function') {\n      func = funcOrDef;\n      dependentKeys = args;\n      sync = !_environment.ENV._DEFAULT_ASYNC_OBSERVERS;\n    } else {\n      func = funcOrDef.fn;\n      dependentKeys = funcOrDef.dependentKeys;\n      sync = funcOrDef.sync;\n    }\n\n    (true && !(typeof func === 'function') && (0, _debug.assert)('observer called without a function', typeof func === 'function'));\n    (true && !(Array.isArray(dependentKeys) && dependentKeys.length > 0 && dependentKeys.every(p => typeof p === 'string' && Boolean(p.length))) && (0, _debug.assert)('observer called without valid path', Array.isArray(dependentKeys) && dependentKeys.length > 0 && dependentKeys.every(p => typeof p === 'string' && Boolean(p.length))));\n    (true && !(typeof sync === 'boolean') && (0, _debug.assert)('observer called without sync', typeof sync === 'boolean'));\n    var paths = [];\n\n    var addWatchedProperty = path => paths.push(path);\n\n    for (var i = 0; i < dependentKeys.length; ++i) {\n      expandProperties(dependentKeys[i], addWatchedProperty);\n    }\n\n    (0, _utils.setObservers)(func, {\n      paths,\n      sync\n    });\n    return func;\n  }\n\n  var DEBUG_INJECTION_FUNCTIONS;\n  _exports.DEBUG_INJECTION_FUNCTIONS = DEBUG_INJECTION_FUNCTIONS;\n\n  if (true\n  /* DEBUG */\n  ) {\n    _exports.DEBUG_INJECTION_FUNCTIONS = DEBUG_INJECTION_FUNCTIONS = new WeakMap();\n  }\n\n  function inject(type, ...args) {\n    (true && !(typeof type === 'string') && (0, _debug.assert)('a string type must be provided to inject', typeof type === 'string'));\n    var calledAsDecorator = isElementDescriptor(args);\n    var source, namespace;\n    var name = calledAsDecorator ? undefined : args[0];\n    var options = calledAsDecorator ? undefined : args[1];\n\n    var getInjection = function (propertyName) {\n      var owner = (0, _owner.getOwner)(this) || this.container; // fallback to `container` for backwards compat\n\n      (true && !(Boolean(owner)) && (0, _debug.assert)(`Attempting to lookup an injected property on an object without a container, ensure that the object was instantiated via a container.`, Boolean(owner)));\n      return owner.lookup(`${type}:${name || propertyName}`, {\n        source,\n        namespace\n      });\n    };\n\n    if (true\n    /* DEBUG */\n    ) {\n      DEBUG_INJECTION_FUNCTIONS.set(getInjection, {\n        namespace,\n        source,\n        type,\n        name\n      });\n    }\n\n    var decorator = computed({\n      get: getInjection,\n\n      set(keyName, value) {\n        defineProperty(this, keyName, null, value);\n      }\n\n    });\n\n    if (calledAsDecorator) {\n      return decorator(args[0], args[1], args[2]);\n    } else {\n      return decorator;\n    }\n  }\n\n  function tracked(...args) {\n    (true && !(!(isElementDescriptor(args.slice(0, 3)) && args.length === 5 && args[4] === true)) && (0, _debug.assert)(`@tracked can only be used directly as a native decorator. If you're using tracked in classic classes, add parenthesis to call it like a function: tracked()`, !(isElementDescriptor(args.slice(0, 3)) && args.length === 5 && args[4] === true)));\n\n    if (!isElementDescriptor(args)) {\n      var propertyDesc = args[0];\n      (true && !(args.length === 0 || typeof propertyDesc === 'object' && propertyDesc !== null) && (0, _debug.assert)(`tracked() may only receive an options object containing 'value' or 'initializer', received ${propertyDesc}`, args.length === 0 || typeof propertyDesc === 'object' && propertyDesc !== null));\n\n      if (true\n      /* DEBUG */\n      && propertyDesc) {\n        var keys = Object.keys(propertyDesc);\n        (true && !(keys.length <= 1 && (keys[0] === undefined || keys[0] === 'value' || keys[0] === 'initializer')) && (0, _debug.assert)(`The options object passed to tracked() may only contain a 'value' or 'initializer' property, not both. Received: [${keys}]`, keys.length <= 1 && (keys[0] === undefined || keys[0] === 'value' || keys[0] === 'initializer')));\n        (true && !(!('initializer' in propertyDesc) || typeof propertyDesc.initializer === 'function') && (0, _debug.assert)(`The initializer passed to tracked must be a function. Received ${propertyDesc.initializer}`, !('initializer' in propertyDesc) || typeof propertyDesc.initializer === 'function'));\n      }\n\n      var initializer = propertyDesc ? propertyDesc.initializer : undefined;\n      var value = propertyDesc ? propertyDesc.value : undefined;\n\n      var decorator = function (target, key, _desc, _meta, isClassicDecorator$$1) {\n        (true && !(isClassicDecorator$$1) && (0, _debug.assert)(`You attempted to set a default value for ${key} with the @tracked({ value: 'default' }) syntax. You can only use this syntax with classic classes. For native classes, you can use class initializers: @tracked field = 'default';`, isClassicDecorator$$1));\n        var fieldDesc = {\n          initializer: initializer || (() => value)\n        };\n        return descriptorForField([target, key, fieldDesc]);\n      };\n\n      setClassicDecorator(decorator);\n      return decorator;\n    }\n\n    return descriptorForField(args);\n  }\n\n  if (true\n  /* DEBUG */\n  ) {\n    // Normally this isn't a classic decorator, but we want to throw a helpful\n    // error in development so we need it to treat it like one\n    setClassicDecorator(tracked);\n  }\n\n  function descriptorForField([_target, key, desc]) {\n    (true && !(!desc || !desc.value && !desc.get && !desc.set) && (0, _debug.assert)(`You attempted to use @tracked on ${key}, but that element is not a class field. @tracked is only usable on class fields. Native getters and setters will autotrack add any tracked fields they encounter, so there is no need mark getters and setters with @tracked.`, !desc || !desc.value && !desc.get && !desc.set));\n    var {\n      getter,\n      setter\n    } = (0, _validator.trackedData)(key, desc ? desc.initializer : undefined);\n    return {\n      enumerable: true,\n      configurable: true,\n\n      get() {\n        var value = getter(this); // Add the tag of the returned value if it is an array, since arrays\n        // should always cause updates if they are consumed and then changed\n\n        if (Array.isArray(value) || (0, _utils.isEmberArray)(value)) {\n          (0, _validator.consumeTag)(tagForProperty(value, '[]'));\n        }\n\n        return value;\n      },\n\n      set(newValue) {\n        setter(this, newValue);\n        (0, _validator.dirtyTagFor)(this, SELF_TAG);\n      }\n\n    };\n  }\n});","define(\"@ember/-internals/owner/index\", [\"exports\", \"@ember/-internals/utils\"], function (_exports, _utils) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.getOwner = getOwner;\n  _exports.setOwner = setOwner;\n  _exports.OWNER = void 0;\n\n  /**\n  @module @ember/application\n  */\n  var OWNER = (0, _utils.symbol)('OWNER');\n  /**\n    Framework objects in an Ember application (components, services, routes, etc.)\n    are created via a factory and dependency injection system. Each of these\n    objects is the responsibility of an \"owner\", which handled its\n    instantiation and manages its lifetime.\n  \n    `getOwner` fetches the owner object responsible for an instance. This can\n    be used to lookup or resolve other class instances, or register new factories\n    into the owner.\n  \n    For example, this component dynamically looks up a service based on the\n    `audioType` passed as an argument:\n  \n    ```app/components/play-audio.js\n    import Component from '@glimmer/component';\n    import { action } from '@ember/object';\n    import { getOwner } from '@ember/application';\n  \n    // Usage:\n    //\n    //   <PlayAudio @audioType={{@model.audioType}} @audioFile={{@model.file}}/>\n    //\n    export default class extends Component {\n      get audioService() {\n        let owner = getOwner(this);\n        return owner.lookup(`service:${this.args.audioType}`);\n      }\n  \n      @action\n      onPlay() {\n        let player = this.audioService;\n        player.play(this.args.audioFile);\n      }\n    }\n    ```\n  \n    @method getOwner\n    @static\n    @for @ember/application\n    @param {Object} object An object with an owner.\n    @return {Object} An owner object.\n    @since 2.3.0\n    @public\n  */\n\n  _exports.OWNER = OWNER;\n\n  function getOwner(object) {\n    return object[OWNER];\n  }\n  /**\n    `setOwner` forces a new owner on a given object instance. This is primarily\n    useful in some testing cases.\n  \n    @method setOwner\n    @static\n    @for @ember/application\n    @param {Object} object An object instance.\n    @param {Object} object The new owner object of the object instance.\n    @since 2.3.0\n    @public\n  */\n\n\n  function setOwner(object, owner) {\n    object[OWNER] = owner;\n  }\n});","define(\"@ember/-internals/routing/index\", [\"exports\", \"@ember/-internals/routing/lib/ext/controller\", \"@ember/-internals/routing/lib/location/api\", \"@ember/-internals/routing/lib/location/none_location\", \"@ember/-internals/routing/lib/location/hash_location\", \"@ember/-internals/routing/lib/location/history_location\", \"@ember/-internals/routing/lib/location/auto_location\", \"@ember/-internals/routing/lib/system/generate_controller\", \"@ember/-internals/routing/lib/system/controller_for\", \"@ember/-internals/routing/lib/system/dsl\", \"@ember/-internals/routing/lib/system/router\", \"@ember/-internals/routing/lib/system/route\", \"@ember/-internals/routing/lib/system/query_params\", \"@ember/-internals/routing/lib/services/routing\", \"@ember/-internals/routing/lib/services/router\", \"@ember/-internals/routing/lib/system/cache\"], function (_exports, _controller, _api, _none_location, _hash_location, _history_location, _auto_location, _generate_controller, _controller_for, _dsl, _router, _route, _query_params, _routing, _router2, _cache) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"Location\", {\n    enumerable: true,\n    get: function () {\n      return _api.default;\n    }\n  });\n  Object.defineProperty(_exports, \"NoneLocation\", {\n    enumerable: true,\n    get: function () {\n      return _none_location.default;\n    }\n  });\n  Object.defineProperty(_exports, \"HashLocation\", {\n    enumerable: true,\n    get: function () {\n      return _hash_location.default;\n    }\n  });\n  Object.defineProperty(_exports, \"HistoryLocation\", {\n    enumerable: true,\n    get: function () {\n      return _history_location.default;\n    }\n  });\n  Object.defineProperty(_exports, \"AutoLocation\", {\n    enumerable: true,\n    get: function () {\n      return _auto_location.default;\n    }\n  });\n  Object.defineProperty(_exports, \"generateController\", {\n    enumerable: true,\n    get: function () {\n      return _generate_controller.default;\n    }\n  });\n  Object.defineProperty(_exports, \"generateControllerFactory\", {\n    enumerable: true,\n    get: function () {\n      return _generate_controller.generateControllerFactory;\n    }\n  });\n  Object.defineProperty(_exports, \"controllerFor\", {\n    enumerable: true,\n    get: function () {\n      return _controller_for.default;\n    }\n  });\n  Object.defineProperty(_exports, \"RouterDSL\", {\n    enumerable: true,\n    get: function () {\n      return _dsl.default;\n    }\n  });\n  Object.defineProperty(_exports, \"Router\", {\n    enumerable: true,\n    get: function () {\n      return _router.default;\n    }\n  });\n  Object.defineProperty(_exports, \"Route\", {\n    enumerable: true,\n    get: function () {\n      return _route.default;\n    }\n  });\n  Object.defineProperty(_exports, \"QueryParams\", {\n    enumerable: true,\n    get: function () {\n      return _query_params.default;\n    }\n  });\n  Object.defineProperty(_exports, \"RoutingService\", {\n    enumerable: true,\n    get: function () {\n      return _routing.default;\n    }\n  });\n  Object.defineProperty(_exports, \"RouterService\", {\n    enumerable: true,\n    get: function () {\n      return _router2.default;\n    }\n  });\n  Object.defineProperty(_exports, \"BucketCache\", {\n    enumerable: true,\n    get: function () {\n      return _cache.default;\n    }\n  });\n});","define(\"@ember/-internals/routing/lib/ext/controller\", [\"exports\", \"@ember/-internals/metal\", \"@ember/controller/lib/controller_mixin\", \"@ember/-internals/routing/lib/utils\"], function (_exports, _metal, _controller_mixin, _utils) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n  @module ember\n  */\n  _controller_mixin.default.reopen({\n    concatenatedProperties: ['queryParams'],\n\n    /**\n      Defines which query parameters the controller accepts.\n      If you give the names `['category','page']` it will bind\n      the values of these query parameters to the variables\n      `this.category` and `this.page`.\n      By default, Ember coerces query parameter values using `toggleProperty`.\n      This behavior may lead to unexpected results.\n      Available queryParam types: `boolean`, `number`, `array`.\n      If query param type not specified, it will be `string`.\n      To explicitly configure a query parameter property so it coerces as expected, you must define a type property:\n         ```javascript\n        queryParams: [{\n          category: {\n            type: 'boolean'\n          }\n        }]\n      ```\n         @for Ember.ControllerMixin\n      @property queryParams\n      @public\n    */\n    queryParams: null,\n\n    /**\n     This property is updated to various different callback functions depending on\n     the current \"state\" of the backing route. It is used by\n     `Controller.prototype._qpChanged`.\n        The methods backing each state can be found in the `Route.prototype._qp` computed\n     property return value (the `.states` property). The current values are listed here for\n     the sanity of future travelers:\n        * `inactive` - This state is used when this controller instance is not part of the active\n       route hierarchy. Set in `Route.prototype._reset` (a `router.js` microlib hook) and\n       `Route.prototype.actions.finalizeQueryParamChange`.\n     * `active` - This state is used when this controller instance is part of the active\n       route hierarchy. Set in `Route.prototype.actions.finalizeQueryParamChange`.\n     * `allowOverrides` - This state is used in `Route.prototype.setup` (`route.js` microlib hook).\n         @method _qpDelegate\n      @private\n    */\n    _qpDelegate: null,\n\n    /**\n     During `Route#setup` observers are created to invoke this method\n     when any of the query params declared in `Controller#queryParams` property\n     are changed.\n        When invoked this method uses the currently active query param update delegate\n     (see `Controller.prototype._qpDelegate` for details) and invokes it with\n     the QP key/value being changed.\n         @method _qpChanged\n      @private\n    */\n    _qpChanged(controller, _prop) {\n      var dotIndex = _prop.indexOf('.[]');\n\n      var prop = dotIndex === -1 ? _prop : _prop.slice(0, dotIndex);\n      var delegate = controller._qpDelegate;\n      var value = (0, _metal.get)(controller, prop);\n      delegate(prop, value);\n    },\n\n    /**\n      Transition the application into another route. The route may\n      be either a single route or route path:\n         ```javascript\n      aController.transitionToRoute('blogPosts');\n      aController.transitionToRoute('blogPosts.recentEntries');\n      ```\n         Optionally supply a model for the route in question. The model\n      will be serialized into the URL using the `serialize` hook of\n      the route:\n         ```javascript\n      aController.transitionToRoute('blogPost', aPost);\n      ```\n         If a literal is passed (such as a number or a string), it will\n      be treated as an identifier instead. In this case, the `model`\n      hook of the route will be triggered:\n         ```javascript\n      aController.transitionToRoute('blogPost', 1);\n      ```\n         Multiple models will be applied last to first recursively up the\n      route tree.\n         ```app/router.js\n      Router.map(function() {\n        this.route('blogPost', { path: ':blogPostId' }, function() {\n          this.route('blogComment', { path: ':blogCommentId', resetNamespace: true });\n        });\n      });\n      ```\n         ```javascript\n      aController.transitionToRoute('blogComment', aPost, aComment);\n      aController.transitionToRoute('blogComment', 1, 13);\n      ```\n         It is also possible to pass a URL (a string that starts with a\n      `/`).\n         ```javascript\n      aController.transitionToRoute('/');\n      aController.transitionToRoute('/blog/post/1/comment/13');\n      aController.transitionToRoute('/blog/posts?sort=title');\n      ```\n         An options hash with a `queryParams` property may be provided as\n      the final argument to add query parameters to the destination URL.\n         ```javascript\n      aController.transitionToRoute('blogPost', 1, {\n        queryParams: { showComments: 'true' }\n      });\n         // if you just want to transition the query parameters without changing the route\n      aController.transitionToRoute({ queryParams: { sort: 'date' } });\n      ```\n         See also [replaceRoute](/ember/release/classes/Ember.ControllerMixin/methods/replaceRoute?anchor=replaceRoute).\n         @param {String} name the name of the route or a URL\n      @param {...Object} models the model(s) or identifier(s) to be used\n        while transitioning to the route.\n      @param {Object} [options] optional hash with a queryParams property\n        containing a mapping of query parameters\n      @for Ember.ControllerMixin\n      @method transitionToRoute\n      @public\n    */\n    transitionToRoute(...args) {\n      // target may be either another controller or a router\n      var target = (0, _metal.get)(this, 'target');\n      var method = target.transitionToRoute || target.transitionTo;\n      return method.apply(target, (0, _utils.prefixRouteNameArg)(this, args));\n    },\n\n    /**\n      Transition into another route while replacing the current URL, if possible.\n      This will replace the current history entry instead of adding a new one.\n      Beside that, it is identical to `transitionToRoute` in all other respects.\n         ```javascript\n      aController.replaceRoute('blogPosts');\n      aController.replaceRoute('blogPosts.recentEntries');\n      ```\n         Optionally supply a model for the route in question. The model\n      will be serialized into the URL using the `serialize` hook of\n      the route:\n         ```javascript\n      aController.replaceRoute('blogPost', aPost);\n      ```\n         If a literal is passed (such as a number or a string), it will\n      be treated as an identifier instead. In this case, the `model`\n      hook of the route will be triggered:\n         ```javascript\n      aController.replaceRoute('blogPost', 1);\n      ```\n         Multiple models will be applied last to first recursively up the\n      route tree.\n         ```app/router.js\n      Router.map(function() {\n        this.route('blogPost', { path: ':blogPostId' }, function() {\n          this.route('blogComment', { path: ':blogCommentId', resetNamespace: true });\n        });\n      });\n      ```\n         ```\n      aController.replaceRoute('blogComment', aPost, aComment);\n      aController.replaceRoute('blogComment', 1, 13);\n      ```\n         It is also possible to pass a URL (a string that starts with a\n      `/`).\n         ```javascript\n      aController.replaceRoute('/');\n      aController.replaceRoute('/blog/post/1/comment/13');\n      ```\n         @param {String} name the name of the route or a URL\n      @param {...Object} models the model(s) or identifier(s) to be used\n      while transitioning to the route.\n      @for Ember.ControllerMixin\n      @method replaceRoute\n      @public\n    */\n    replaceRoute(...args) {\n      // target may be either another controller or a router\n      var target = (0, _metal.get)(this, 'target');\n      var method = target.replaceRoute || target.replaceWith;\n      return method.apply(target, (0, _utils.prefixRouteNameArg)(this, args));\n    }\n\n  });\n\n  var _default = _controller_mixin.default;\n  _exports.default = _default;\n});","define(\"@ember/-internals/routing/lib/location/api\", [\"exports\", \"@ember/debug\"], function (_exports, _debug) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n  @module @ember/routing\n  */\n\n  /**\n    Location returns an instance of the correct implementation of\n    the `location` API.\n  \n    ## Implementations\n  \n    You can pass an implementation name (`hash`, `history`, `none`, `auto`) to force a\n    particular implementation to be used in your application.\n  \n    See [HashLocation](/ember/release/classes/HashLocation).\n    See [HistoryLocation](/ember/release/classes/HistoryLocation).\n    See [NoneLocation](/ember/release/classes/NoneLocation).\n    See [AutoLocation](/ember/release/classes/AutoLocation).\n  \n    ## Location API\n  \n    Each location implementation must provide the following methods:\n  \n    * implementation: returns the string name used to reference the implementation.\n    * getURL: returns the current URL.\n    * setURL(path): sets the current URL.\n    * replaceURL(path): replace the current URL (optional).\n    * onUpdateURL(callback): triggers the callback when the URL changes.\n    * formatURL(url): formats `url` to be placed into `href` attribute.\n    * detect() (optional): instructs the location to do any feature detection\n        necessary. If the location needs to redirect to a different URL, it\n        can cancel routing by setting the `cancelRouterSetup` property on itself\n        to `false`.\n  \n    Calling setURL or replaceURL will not trigger onUpdateURL callbacks.\n  \n    ## Custom implementation\n  \n    Ember scans `app/locations/*` for extending the Location API.\n  \n    Example:\n  \n    ```javascript\n    import HistoryLocation from '@ember/routing/history-location';\n  \n    export default class MyHistory {\n      implementation: 'my-custom-history',\n      constructor() {\n        this._history = HistoryLocation.create(...arguments);\n      }\n      create() {\n        return new this(...arguments);\n      }\n      pushState(path) {\n         this._history.pushState(path);\n      }\n    }\n    ```\n  \n    @class Location\n    @private\n  */\n  var _default = {\n    /**\n     This is deprecated in favor of using the container to lookup the location\n     implementation as desired.\n        For example:\n        ```javascript\n     // Given a location registered as follows:\n     container.register('location:history-test', HistoryTestLocation);\n        // You could create a new instance via:\n     container.lookup('location:history-test');\n     ```\n         @method create\n      @param {Object} options\n      @return {Object} an instance of an implementation of the `location` API\n      @deprecated Use the container to lookup the location implementation that you\n      need.\n      @private\n    */\n    create(options) {\n      var implementation = options && options.implementation;\n      (true && !(Boolean(implementation)) && (0, _debug.assert)(\"Location.create: you must specify a 'implementation' option\", Boolean(implementation)));\n      var implementationClass = this.implementations[implementation];\n      (true && !(Boolean(implementationClass)) && (0, _debug.assert)(`Location.create: ${implementation} is not a valid implementation`, Boolean(implementationClass)));\n      return implementationClass.create(...arguments);\n    },\n\n    implementations: {}\n  };\n  _exports.default = _default;\n});","define(\"@ember/-internals/routing/lib/location/auto_location\", [\"exports\", \"@ember/-internals/browser-environment\", \"@ember/-internals/metal\", \"@ember/-internals/owner\", \"@ember/-internals/runtime\", \"@ember/-internals/utils\", \"@ember/debug\", \"@ember/-internals/routing/lib/location/util\"], function (_exports, _browserEnvironment, _metal, _owner, _runtime, _utils, _debug, _util) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.getHistoryPath = getHistoryPath;\n  _exports.getHashPath = getHashPath;\n  _exports.default = void 0;\n\n  /**\n  @module @ember/routing\n  */\n\n  /**\n    AutoLocation will select the best location option based off browser\n    support with the priority order: history, hash, none.\n  \n    Clean pushState paths accessed by hashchange-only browsers will be redirected\n    to the hash-equivalent and vice versa so future transitions are consistent.\n  \n    Keep in mind that since some of your users will use `HistoryLocation`, your\n    server must serve the Ember app at all the routes you define.\n  \n    Browsers that support the `history` API will use `HistoryLocation`, those that\n    do not, but still support the `hashchange` event will use `HashLocation`, and\n    in the rare case neither is supported will use `NoneLocation`.\n  \n    Example:\n  \n    ```app/router.js\n    Router.map(function() {\n      this.route('posts', function() {\n        this.route('new');\n      });\n    });\n  \n    Router.reopen({\n      location: 'auto'\n    });\n    ```\n  \n    This will result in a posts.new url of `/posts/new` for modern browsers that\n    support the `history` api or `/#/posts/new` for older ones, like Internet\n    Explorer 9 and below.\n  \n    When a user visits a link to your application, they will be automatically\n    upgraded or downgraded to the appropriate `Location` class, with the URL\n    transformed accordingly, if needed.\n  \n    Keep in mind that since some of your users will use `HistoryLocation`, your\n    server must serve the Ember app at all the routes you define.\n  \n    @class AutoLocation\n    @static\n    @protected\n  */\n  class AutoLocation extends _runtime.Object {\n    constructor() {\n      super(...arguments);\n      this.implementation = 'auto';\n    }\n    /**\n     Called by the router to instruct the location to do any feature detection\n     necessary. In the case of AutoLocation, we detect whether to use history\n     or hash concrete implementations.\n        @private\n    */\n\n\n    detect() {\n      var rootURL = this.rootURL;\n      (true && !(rootURL.charAt(rootURL.length - 1) === '/') && (0, _debug.assert)('rootURL must end with a trailing forward slash e.g. \"/app/\"', rootURL.charAt(rootURL.length - 1) === '/'));\n      var implementation = detectImplementation({\n        location: this.location,\n        history: this.history,\n        userAgent: this.userAgent,\n        rootURL,\n        documentMode: this.documentMode,\n        global: this.global\n      });\n\n      if (implementation === false) {\n        (0, _metal.set)(this, 'cancelRouterSetup', true);\n        implementation = 'none';\n      }\n\n      var concrete = (0, _owner.getOwner)(this).lookup(`location:${implementation}`);\n      (true && !(concrete !== undefined) && (0, _debug.assert)(`Could not find location '${implementation}'.`, concrete !== undefined));\n      (0, _metal.set)(concrete, 'rootURL', rootURL);\n      (0, _metal.set)(this, 'concreteImplementation', concrete);\n    }\n\n    willDestroy() {\n      var {\n        concreteImplementation\n      } = this;\n\n      if (concreteImplementation) {\n        concreteImplementation.destroy();\n      }\n    }\n\n  }\n\n  _exports.default = AutoLocation;\n  AutoLocation.reopen({\n    /**\n      @private\n         Will be pre-pended to path upon state change.\n         @since 1.5.1\n      @property rootURL\n      @default '/'\n    */\n    rootURL: '/',\n    initState: delegateToConcreteImplementation('initState'),\n    getURL: delegateToConcreteImplementation('getURL'),\n    setURL: delegateToConcreteImplementation('setURL'),\n    replaceURL: delegateToConcreteImplementation('replaceURL'),\n    onUpdateURL: delegateToConcreteImplementation('onUpdateURL'),\n    formatURL: delegateToConcreteImplementation('formatURL'),\n\n    /**\n      @private\n         The browser's `location` object. This is typically equivalent to\n      `window.location`, but may be overridden for testing.\n         @property location\n      @default environment.location\n    */\n    location: _browserEnvironment.location,\n\n    /**\n      @private\n         The browser's `history` object. This is typically equivalent to\n      `window.history`, but may be overridden for testing.\n         @since 1.5.1\n      @property history\n      @default environment.history\n    */\n    history: _browserEnvironment.history,\n\n    /**\n     @private\n        The user agent's global variable. In browsers, this will be `window`.\n        @since 1.11\n     @property global\n     @default window\n    */\n    global: _browserEnvironment.window,\n\n    /**\n      @private\n         The browser's `userAgent`. This is typically equivalent to\n      `navigator.userAgent`, but may be overridden for testing.\n         @since 1.5.1\n      @property userAgent\n      @default environment.history\n    */\n    userAgent: _browserEnvironment.userAgent,\n\n    /**\n      @private\n         This property is used by the router to know whether to cancel the routing\n      setup process, which is needed while we redirect the browser.\n         @since 1.5.1\n      @property cancelRouterSetup\n      @default false\n    */\n    cancelRouterSetup: false\n  });\n\n  function delegateToConcreteImplementation(methodName) {\n    return function (...args) {\n      var {\n        concreteImplementation\n      } = this;\n      (true && !(Boolean(concreteImplementation)) && (0, _debug.assert)(\"AutoLocation's detect() method should be called before calling any other hooks.\", Boolean(concreteImplementation)));\n      return (0, _utils.tryInvoke)(concreteImplementation, methodName, args);\n    };\n  }\n\n  function detectImplementation(options) {\n    var {\n      location,\n      userAgent,\n      history,\n      documentMode,\n      global,\n      rootURL\n    } = options;\n    var implementation = 'none';\n    var cancelRouterSetup = false;\n    var currentPath = (0, _util.getFullPath)(location);\n\n    if ((0, _util.supportsHistory)(userAgent, history)) {\n      var historyPath = getHistoryPath(rootURL, location); // If the browser supports history and we have a history path, we can use\n      // the history location with no redirects.\n\n      if (currentPath === historyPath) {\n        implementation = 'history';\n      } else if (currentPath.substr(0, 2) === '/#') {\n        history.replaceState({\n          path: historyPath\n        }, '', historyPath);\n        implementation = 'history';\n      } else {\n        cancelRouterSetup = true;\n        (0, _util.replacePath)(location, historyPath);\n      }\n    } else if ((0, _util.supportsHashChange)(documentMode, global)) {\n      var hashPath = getHashPath(rootURL, location); // Be sure we're using a hashed path, otherwise let's switch over it to so\n      // we start off clean and consistent. We'll count an index path with no\n      // hash as \"good enough\" as well.\n\n      if (currentPath === hashPath || currentPath === '/' && hashPath === '/#/') {\n        implementation = 'hash';\n      } else {\n        // Our URL isn't in the expected hash-supported format, so we want to\n        // cancel the router setup and replace the URL to start off clean\n        cancelRouterSetup = true;\n        (0, _util.replacePath)(location, hashPath);\n      }\n    }\n\n    if (cancelRouterSetup) {\n      return false;\n    }\n\n    return implementation;\n  }\n  /**\n    @private\n  \n    Returns the current path as it should appear for HistoryLocation supported\n    browsers. This may very well differ from the real current path (e.g. if it\n    starts off as a hashed URL)\n  */\n\n\n  function getHistoryPath(rootURL, location) {\n    var path = (0, _util.getPath)(location);\n    var hash = (0, _util.getHash)(location);\n    var query = (0, _util.getQuery)(location);\n    var rootURLIndex = path.indexOf(rootURL);\n    var routeHash, hashParts;\n    (true && !(rootURLIndex === 0) && (0, _debug.assert)(`Path ${path} does not start with the provided rootURL ${rootURL}`, rootURLIndex === 0)); // By convention, Ember.js routes using HashLocation are required to start\n    // with `#/`. Anything else should NOT be considered a route and should\n    // be passed straight through, without transformation.\n\n    if (hash.substr(0, 2) === '#/') {\n      // There could be extra hash segments after the route\n      hashParts = hash.substr(1).split('#'); // The first one is always the route url\n\n      routeHash = hashParts.shift(); // If the path already has a trailing slash, remove the one\n      // from the hashed route so we don't double up.\n\n      if (path.charAt(path.length - 1) === '/') {\n        routeHash = routeHash.substr(1);\n      } // This is the \"expected\" final order\n\n\n      path += routeHash + query;\n\n      if (hashParts.length) {\n        path += `#${hashParts.join('#')}`;\n      }\n    } else {\n      path += query + hash;\n    }\n\n    return path;\n  }\n  /**\n    @private\n  \n    Returns the current path as it should appear for HashLocation supported\n    browsers. This may very well differ from the real current path.\n  \n    @method _getHashPath\n  */\n\n\n  function getHashPath(rootURL, location) {\n    var path = rootURL;\n    var historyPath = getHistoryPath(rootURL, location);\n    var routePath = historyPath.substr(rootURL.length);\n\n    if (routePath !== '') {\n      if (routePath[0] !== '/') {\n        routePath = `/${routePath}`;\n      }\n\n      path += `#${routePath}`;\n    }\n\n    return path;\n  }\n});","define(\"@ember/-internals/routing/lib/location/hash_location\", [\"exports\", \"@ember/-internals/metal\", \"@ember/-internals/runtime\", \"@ember/runloop\", \"@ember/-internals/routing/lib/location/util\"], function (_exports, _metal, _runtime, _runloop, _util) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n  @module @ember/routing\n  */\n\n  /**\n    `HashLocation` implements the location API using the browser's\n    hash. At present, it relies on a `hashchange` event existing in the\n    browser.\n  \n    Using `HashLocation` results in URLs with a `#` (hash sign) separating the\n    server side URL portion of the URL from the portion that is used by Ember.\n  \n    Example:\n  \n    ```app/router.js\n    Router.map(function() {\n      this.route('posts', function() {\n        this.route('new');\n      });\n    });\n  \n    Router.reopen({\n      location: 'hash'\n    });\n    ```\n  \n    This will result in a posts.new url of `/#/posts/new`.\n  \n    @class HashLocation\n    @extends EmberObject\n    @protected\n  */\n  class HashLocation extends _runtime.Object {\n    constructor() {\n      super(...arguments);\n      this.implementation = 'hash';\n    }\n\n    init() {\n      (0, _metal.set)(this, 'location', this._location || window.location);\n      this._hashchangeHandler = undefined;\n    }\n    /**\n      @private\n         Returns normalized location.hash\n         @since 1.5.1\n      @method getHash\n    */\n\n\n    getHash() {\n      return (0, _util.getHash)(this.location);\n    }\n    /**\n      Returns the normalized URL, constructed from `location.hash`.\n         e.g. `#/foo` => `/foo` as well as `#/foo#bar` => `/foo#bar`.\n         By convention, hashed paths must begin with a forward slash, otherwise they\n      are not treated as a path so we can distinguish intent.\n         @private\n      @method getURL\n    */\n\n\n    getURL() {\n      var originalPath = this.getHash().substr(1);\n      var outPath = originalPath;\n\n      if (outPath[0] !== '/') {\n        outPath = '/'; // Only add the # if the path isn't empty.\n        // We do NOT want `/#` since the ampersand\n        // is only included (conventionally) when\n        // the location.hash has a value\n\n        if (originalPath) {\n          outPath += `#${originalPath}`;\n        }\n      }\n\n      return outPath;\n    }\n    /**\n      Set the `location.hash` and remembers what was set. This prevents\n      `onUpdateURL` callbacks from triggering when the hash was set by\n      `HashLocation`.\n         @private\n      @method setURL\n      @param path {String}\n    */\n\n\n    setURL(path) {\n      this.location.hash = path;\n      (0, _metal.set)(this, 'lastSetURL', path);\n    }\n    /**\n      Uses location.replace to update the url without a page reload\n      or history modification.\n         @private\n      @method replaceURL\n      @param path {String}\n    */\n\n\n    replaceURL(path) {\n      this.location.replace(`#${path}`);\n      (0, _metal.set)(this, 'lastSetURL', path);\n    }\n    /**\n      Register a callback to be invoked when the hash changes. These\n      callbacks will execute when the user presses the back or forward\n      button, but not after `setURL` is invoked.\n         @private\n      @method onUpdateURL\n      @param callback {Function}\n    */\n\n\n    onUpdateURL(callback) {\n      this._removeEventListener();\n\n      this._hashchangeHandler = (0, _runloop.bind)(this, function () {\n        var path = this.getURL();\n\n        if (this.lastSetURL === path) {\n          return;\n        }\n\n        (0, _metal.set)(this, 'lastSetURL', null);\n        callback(path);\n      });\n      window.addEventListener('hashchange', this._hashchangeHandler);\n    }\n    /**\n      Given a URL, formats it to be placed into the page as part\n      of an element's `href` attribute.\n         This is used, for example, when using the {{action}} helper\n      to generate a URL based on an event.\n         @private\n      @method formatURL\n      @param url {String}\n    */\n\n\n    formatURL(url) {\n      return `#${url}`;\n    }\n    /**\n      Cleans up the HashLocation event listener.\n         @private\n      @method willDestroy\n    */\n\n\n    willDestroy() {\n      this._removeEventListener();\n    }\n\n    _removeEventListener() {\n      if (this._hashchangeHandler) {\n        window.removeEventListener('hashchange', this._hashchangeHandler);\n      }\n    }\n\n  }\n\n  _exports.default = HashLocation;\n});","define(\"@ember/-internals/routing/lib/location/history_location\", [\"exports\", \"@ember/-internals/metal\", \"@ember/-internals/runtime\", \"@ember/-internals/routing/lib/location/util\"], function (_exports, _metal, _runtime, _util) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n  @module @ember/routing\n  */\n  var popstateFired = false;\n\n  function _uuid() {\n    return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function (c) {\n      var r, v;\n      r = Math.random() * 16 | 0;\n      v = c === 'x' ? r : r & 3 | 8;\n      return v.toString(16);\n    });\n  }\n  /**\n    HistoryLocation implements the location API using the browser's\n    history.pushState API.\n  \n    Using `HistoryLocation` results in URLs that are indistinguishable from a\n    standard URL. This relies upon the browser's `history` API.\n  \n    Example:\n  \n    ```app/router.js\n    Router.map(function() {\n      this.route('posts', function() {\n        this.route('new');\n      });\n    });\n  \n    Router.reopen({\n      location: 'history'\n    });\n    ```\n  \n    This will result in a posts.new url of `/posts/new`.\n  \n    Keep in mind that your server must serve the Ember app at all the routes you\n    define.\n  \n    @class HistoryLocation\n    @extends EmberObject\n    @protected\n  */\n\n\n  class HistoryLocation extends _runtime.Object {\n    constructor() {\n      super(...arguments);\n      this.implementation = 'history';\n      /**\n        Will be pre-pended to path upon state change\n               @property rootURL\n        @default '/'\n        @private\n      */\n\n      this.rootURL = '/';\n    }\n    /**\n      @private\n         Returns normalized location.hash\n         @method getHash\n    */\n\n\n    getHash() {\n      return (0, _util.getHash)(this.location);\n    }\n\n    init() {\n      this._super(...arguments);\n\n      var base = document.querySelector('base');\n      var baseURL = '';\n\n      if (base) {\n        baseURL = base.getAttribute('href');\n      }\n\n      (0, _metal.set)(this, 'baseURL', baseURL);\n      (0, _metal.set)(this, 'location', this.location || window.location);\n      this._popstateHandler = undefined;\n    }\n    /**\n      Used to set state on first call to setURL\n         @private\n      @method initState\n    */\n\n\n    initState() {\n      var history = this.history || window.history;\n      (0, _metal.set)(this, 'history', history);\n      var {\n        state\n      } = history;\n      var path = this.formatURL(this.getURL());\n\n      if (state && state.path === path) {\n        // preserve existing state\n        // used for webkit workaround, since there will be no initial popstate event\n        this._previousURL = this.getURL();\n      } else {\n        this.replaceState(path);\n      }\n    }\n    /**\n      Returns the current `location.pathname` without `rootURL` or `baseURL`\n         @private\n      @method getURL\n      @return url {String}\n    */\n\n\n    getURL() {\n      var {\n        location,\n        rootURL,\n        baseURL\n      } = this;\n      var path = location.pathname; // remove trailing slashes if they exists\n\n      rootURL = rootURL.replace(/\\/$/, '');\n      baseURL = baseURL.replace(/\\/$/, ''); // remove baseURL and rootURL from start of path\n\n      var url = path.replace(new RegExp(`^${baseURL}(?=/|$)`), '').replace(new RegExp(`^${rootURL}(?=/|$)`), '').replace(/\\/\\//g, '/'); // remove extra slashes\n\n      var search = location.search || '';\n      url += search + this.getHash();\n      return url;\n    }\n    /**\n      Uses `history.pushState` to update the url without a page reload.\n         @private\n      @method setURL\n      @param path {String}\n    */\n\n\n    setURL(path) {\n      var {\n        state\n      } = this.history;\n      path = this.formatURL(path);\n\n      if (!state || state.path !== path) {\n        this.pushState(path);\n      }\n    }\n    /**\n      Uses `history.replaceState` to update the url without a page reload\n      or history modification.\n         @private\n      @method replaceURL\n      @param path {String}\n    */\n\n\n    replaceURL(path) {\n      var {\n        state\n      } = this.history;\n      path = this.formatURL(path);\n\n      if (!state || state.path !== path) {\n        this.replaceState(path);\n      }\n    }\n    /**\n     Pushes a new state.\n        @private\n     @method pushState\n     @param path {String}\n    */\n\n\n    pushState(path) {\n      var state = {\n        path,\n        uuid: _uuid()\n      };\n      this.history.pushState(state, null, path); // used for webkit workaround\n\n      this._previousURL = this.getURL();\n    }\n    /**\n     Replaces the current state.\n        @private\n     @method replaceState\n     @param path {String}\n    */\n\n\n    replaceState(path) {\n      var state = {\n        path,\n        uuid: _uuid()\n      };\n      this.history.replaceState(state, null, path); // used for webkit workaround\n\n      this._previousURL = this.getURL();\n    }\n    /**\n      Register a callback to be invoked whenever the browser\n      history changes, including using forward and back buttons.\n         @private\n      @method onUpdateURL\n      @param callback {Function}\n    */\n\n\n    onUpdateURL(callback) {\n      this._removeEventListener();\n\n      this._popstateHandler = () => {\n        // Ignore initial page load popstate event in Chrome\n        if (!popstateFired) {\n          popstateFired = true;\n\n          if (this.getURL() === this._previousURL) {\n            return;\n          }\n        }\n\n        callback(this.getURL());\n      };\n\n      window.addEventListener('popstate', this._popstateHandler);\n    }\n    /**\n      Used when using `{{action}}` helper.  The url is always appended to the rootURL.\n         @private\n      @method formatURL\n      @param url {String}\n      @return formatted url {String}\n    */\n\n\n    formatURL(url) {\n      var {\n        rootURL,\n        baseURL\n      } = this;\n\n      if (url !== '') {\n        // remove trailing slashes if they exists\n        rootURL = rootURL.replace(/\\/$/, '');\n        baseURL = baseURL.replace(/\\/$/, '');\n      } else if (baseURL[0] === '/' && rootURL[0] === '/') {\n        // if baseURL and rootURL both start with a slash\n        // ... remove trailing slash from baseURL if it exists\n        baseURL = baseURL.replace(/\\/$/, '');\n      }\n\n      return baseURL + rootURL + url;\n    }\n    /**\n      Cleans up the HistoryLocation event listener.\n         @private\n      @method willDestroy\n    */\n\n\n    willDestroy() {\n      this._removeEventListener();\n    }\n\n    _removeEventListener() {\n      if (this._popstateHandler) {\n        window.removeEventListener('popstate', this._popstateHandler);\n      }\n    }\n\n  }\n\n  _exports.default = HistoryLocation;\n});","define(\"@ember/-internals/routing/lib/location/none_location\", [\"exports\", \"@ember/-internals/metal\", \"@ember/-internals/runtime\", \"@ember/debug\"], function (_exports, _metal, _runtime, _debug) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n  @module @ember/routing\n  */\n\n  /**\n    NoneLocation does not interact with the browser. It is useful for\n    testing, or when you need to manage state with your Router, but temporarily\n    don't want it to muck with the URL (for example when you embed your\n    application in a larger page).\n  \n    Using `NoneLocation` causes Ember to not store the applications URL state\n    in the actual URL. This is generally used for testing purposes, and is one\n    of the changes made when calling `App.setupForTesting()`.\n  \n    @class NoneLocation\n    @extends EmberObject\n    @protected\n  */\n  class NoneLocation extends _runtime.Object {\n    constructor() {\n      super(...arguments);\n      this.implementation = 'none';\n    }\n\n    detect() {\n      var {\n        rootURL\n      } = this;\n      (true && !(rootURL.charAt(rootURL.length - 1) === '/') && (0, _debug.assert)('rootURL must end with a trailing forward slash e.g. \"/app/\"', rootURL.charAt(rootURL.length - 1) === '/'));\n    }\n    /**\n      Returns the current path without `rootURL`.\n         @private\n      @method getURL\n      @return {String} path\n    */\n\n\n    getURL() {\n      var {\n        path,\n        rootURL\n      } = this; // remove trailing slashes if they exists\n\n      rootURL = rootURL.replace(/\\/$/, ''); // remove rootURL from url\n\n      return path.replace(new RegExp(`^${rootURL}(?=/|$)`), '');\n    }\n    /**\n      Set the path and remembers what was set. Using this method\n      to change the path will not invoke the `updateURL` callback.\n         @private\n      @method setURL\n      @param path {String}\n    */\n\n\n    setURL(path) {\n      (0, _metal.set)(this, 'path', path);\n    }\n    /**\n      Register a callback to be invoked when the path changes. These\n      callbacks will execute when the user presses the back or forward\n      button, but not after `setURL` is invoked.\n         @private\n      @method onUpdateURL\n      @param callback {Function}\n    */\n\n\n    onUpdateURL(callback) {\n      this.updateCallback = callback;\n    }\n    /**\n      Sets the path and calls the `updateURL` callback.\n         @private\n      @method handleURL\n      @param url {String}\n    */\n\n\n    handleURL(url) {\n      (0, _metal.set)(this, 'path', url);\n      this.updateCallback(url);\n    }\n    /**\n      Given a URL, formats it to be placed into the page as part\n      of an element's `href` attribute.\n         This is used, for example, when using the {{action}} helper\n      to generate a URL based on an event.\n         @private\n      @method formatURL\n      @param url {String}\n      @return {String} url\n    */\n\n\n    formatURL(url) {\n      var {\n        rootURL\n      } = this;\n\n      if (url !== '') {\n        // remove trailing slashes if they exists\n        rootURL = rootURL.replace(/\\/$/, '');\n      }\n\n      return rootURL + url;\n    }\n\n  }\n\n  _exports.default = NoneLocation;\n  NoneLocation.reopen({\n    path: '',\n\n    /**\n      Will be pre-pended to path.\n         @private\n      @property rootURL\n      @default '/'\n    */\n    rootURL: '/'\n  });\n});","define(\"@ember/-internals/routing/lib/location/util\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.getPath = getPath;\n  _exports.getQuery = getQuery;\n  _exports.getHash = getHash;\n  _exports.getFullPath = getFullPath;\n  _exports.getOrigin = getOrigin;\n  _exports.supportsHashChange = supportsHashChange;\n  _exports.supportsHistory = supportsHistory;\n  _exports.replacePath = replacePath;\n\n  /**\n    @private\n  \n    Returns the current `location.pathname`, normalized for IE inconsistencies.\n  */\n  function getPath(location) {\n    var pathname = location.pathname; // Various versions of IE/Opera don't always return a leading slash\n\n    if (pathname[0] !== '/') {\n      pathname = `/${pathname}`;\n    }\n\n    return pathname;\n  }\n  /**\n    @private\n  \n    Returns the current `location.search`.\n  */\n\n\n  function getQuery(location) {\n    return location.search;\n  }\n  /**\n    @private\n  \n    Returns the hash or empty string\n  */\n\n\n  function getHash(location) {\n    if (location.hash !== undefined) {\n      return location.hash.substr(0);\n    }\n\n    return '';\n  }\n\n  function getFullPath(location) {\n    return getPath(location) + getQuery(location) + getHash(location);\n  }\n\n  function getOrigin(location) {\n    var origin = location.origin; // Older browsers, especially IE, don't have origin\n\n    if (!origin) {\n      origin = `${location.protocol}//${location.hostname}`;\n\n      if (location.port) {\n        origin += `:${location.port}`;\n      }\n    }\n\n    return origin;\n  }\n  /*\n    `documentMode` only exist in Internet Explorer, and it's tested because IE8 running in\n    IE7 compatibility mode claims to support `onhashchange` but actually does not.\n  \n    `global` is an object that may have an `onhashchange` property.\n  \n    @private\n    @function supportsHashChange\n  */\n\n\n  function supportsHashChange(documentMode, global) {\n    return global && 'onhashchange' in global && (documentMode === undefined || documentMode > 7);\n  }\n  /*\n    `userAgent` is a user agent string. We use user agent testing here, because\n    the stock Android browser is known to have buggy versions of the History API,\n    in some Android versions.\n  \n    @private\n    @function supportsHistory\n  */\n\n\n  function supportsHistory(userAgent, history) {\n    // Boosted from Modernizr: https://github.com/Modernizr/Modernizr/blob/master/feature-detects/history.js\n    // The stock browser on Android 2.2 & 2.3, and 4.0.x returns positive on history support\n    // Unfortunately support is really buggy and there is no clean way to detect\n    // these bugs, so we fall back to a user agent sniff :(\n    // We only want Android 2 and 4.0, stock browser, and not Chrome which identifies\n    // itself as 'Mobile Safari' as well, nor Windows Phone.\n    if ((userAgent.indexOf('Android 2.') !== -1 || userAgent.indexOf('Android 4.0') !== -1) && userAgent.indexOf('Mobile Safari') !== -1 && userAgent.indexOf('Chrome') === -1 && userAgent.indexOf('Windows Phone') === -1) {\n      return false;\n    }\n\n    return Boolean(history && 'pushState' in history);\n  }\n  /**\n    Replaces the current location, making sure we explicitly include the origin\n    to prevent redirecting to a different origin.\n  \n    @private\n  */\n\n\n  function replacePath(location, path) {\n    location.replace(getOrigin(location) + path);\n  }\n});","define(\"@ember/-internals/routing/lib/services/router\", [\"exports\", \"@ember/-internals/runtime\", \"@ember/debug\", \"@ember/object/computed\", \"@ember/service\", \"@ember/-internals/routing/lib/utils\"], function (_exports, _runtime, _debug, _computed, _service, _utils) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n  var freezeRouteInfo;\n\n  if (true\n  /* DEBUG */\n  ) {\n    freezeRouteInfo = transition => {\n      if (transition.from !== null && !Object.isFrozen(transition.from)) {\n        Object.freeze(transition.from);\n      }\n\n      if (transition.to !== null && !Object.isFrozen(transition.to)) {\n        Object.freeze(transition.to);\n      }\n    };\n  }\n\n  function cleanURL(url, rootURL) {\n    if (rootURL === '/') {\n      return url;\n    }\n\n    return url.substr(rootURL.length, url.length);\n  }\n  /**\n     The Router service is the public API that provides access to the router.\n  \n     The immediate benefit of the Router service is that you can inject it into components,\n     giving them a friendly way to initiate transitions and ask questions about the current\n     global router state.\n  \n     In this example, the Router service is injected into a component to initiate a transition\n     to a dedicated route:\n  \n     ```app/components/example.js\n     import Component from '@glimmer/component';\n     import { action } from '@ember/object';\n     import { inject as service } from '@ember/service';\n  \n     export default class ExampleComponent extends Component {\n       @service router;\n  \n       @action\n       next() {\n         this.router.transitionTo('other.route');\n       }\n     }\n     ```\n  \n     Like any service, it can also be injected into helpers, routes, etc.\n  \n     @public\n     @extends Service\n     @class RouterService\n   */\n\n\n  class RouterService extends _service.default {\n    init() {\n      super.init(...arguments);\n\n      this._router.on('routeWillChange', transition => {\n        if (true\n        /* DEBUG */\n        ) {\n          freezeRouteInfo(transition);\n        }\n\n        this.trigger('routeWillChange', transition);\n      });\n\n      this._router.on('routeDidChange', transition => {\n        if (true\n        /* DEBUG */\n        ) {\n          freezeRouteInfo(transition);\n        }\n\n        this.trigger('routeDidChange', transition);\n      });\n    }\n    /**\n       Transition the application into another route. The route may\n       be either a single route or route path:\n          See [transitionTo](/ember/release/classes/Route/methods/transitionTo?anchor=transitionTo) for more info.\n          Calling `transitionTo` from the Router service will cause default query parameter values to be included in the URL.\n       This behavior is different from calling `transitionTo` on a route or `transitionToRoute` on a controller.\n       See the [Router Service RFC](https://github.com/emberjs/rfcs/blob/master/text/0095-router-service.md#query-parameter-semantics) for more info.\n          In the following example we use the Router service to navigate to a route with a\n       specific model from a Component in the first action, and in the second we trigger\n       a query-params only transition.\n          ```app/components/example.js\n       import Component from '@glimmer/component';\n       import { action } from '@ember/object';\n       import { inject as service } from '@ember/service';\n          export default class extends Component {\n         @service router;\n            @action\n         goToComments(post) {\n           this.router.transitionTo('comments', post);\n         }\n            @action\n         fetchMoreComments(latestComment) {\n           this.router.transitionTo({\n             queryParams: { commentsAfter: latestComment }\n           });\n         }\n       }\n       ```\n          @method transitionTo\n       @param {String} [routeNameOrUrl] the name of the route or a URL\n       @param {...Object} [models] the model(s) or identifier(s) to be used while\n         transitioning to the route.\n       @param {Object} [options] optional hash with a queryParams property\n         containing a mapping of query parameters. May be supplied as the only\n        parameter to trigger a query-parameter-only transition.\n       @return {Transition} the transition object associated with this\n         attempted transition\n       @public\n     */\n\n\n    transitionTo(...args) {\n      if ((0, _utils.resemblesURL)(args[0])) {\n        // NOTE: this `args[0] as string` cast is safe and TS correctly infers it\n        // in 3.6+, so it can be removed when TS is upgraded.\n        return this._router._doURLTransition('transitionTo', args[0]);\n      }\n\n      var {\n        routeName,\n        models,\n        queryParams\n      } = (0, _utils.extractRouteArgs)(args);\n\n      var transition = this._router._doTransition(routeName, models, queryParams, true);\n\n      transition['_keepDefaultQueryParamValues'] = true;\n      return transition;\n    }\n    /**\n       Similar to `transitionTo`, but instead of adding the destination to the browser's URL history,\n       it replaces the entry for the current route.\n       When the user clicks the \"back\" button in the browser, there will be fewer steps.\n       This is most commonly used to manage redirects in a way that does not cause confusing additions\n       to the user's browsing history.\n          See [replaceWith](/ember/release/classes/Route/methods/replaceWith?anchor=replaceWith) for more info.\n          Calling `replaceWith` from the Router service will cause default query parameter values to be included in the URL.\n       This behavior is different from calling `replaceWith` on a route.\n       See the [Router Service RFC](https://github.com/emberjs/rfcs/blob/master/text/0095-router-service.md#query-parameter-semantics) for more info.\n          Usage example:\n          ```app/routes/application.js\n       import Route from '@ember/routing/route';\n          export default class extends Route {\n         beforeModel() {\n           if (!authorized()){\n             this.replaceWith('unauthorized');\n           }\n         }\n       });\n       ```\n          @method replaceWith\n       @param {String} routeNameOrUrl the name of the route or a URL of the desired destination\n       @param {...Object} models the model(s) or identifier(s) to be used while\n         transitioning to the route i.e. an object of params to pass to the destination route\n       @param {Object} [options] optional hash with a queryParams property\n         containing a mapping of query parameters\n       @return {Transition} the transition object associated with this\n         attempted transition\n       @public\n     */\n\n\n    replaceWith()\n    /* routeNameOrUrl, ...models, options */\n    {\n      return this.transitionTo(...arguments).method('replace');\n    }\n    /**\n      Generate a URL based on the supplied route name and optionally a model. The\n      URL is returned as a string that can be used for any purpose.\n         In this example, the URL for the `author.books` route for a given author\n      is copied to the clipboard.\n         ```app/templates/application.hbs\n      <CopyLink @author={{hash id=\"tomster\" name=\"Tomster\"}} />\n      ```\n         ```app/components/copy-link.js\n      import Component from '@glimmer/component';\n      import { inject as service } from '@ember/service';\n      import { action } from '@ember/object';\n         export default class CopyLinkComponent extends Component {\n        @service router;\n        @service clipboard;\n           @action\n        copyBooksURL() {\n          if (this.author) {\n            const url = this.router.urlFor('author.books', this.args.author);\n            this.clipboard.set(url);\n            // Clipboard now has /author/tomster/books\n          }\n        }\n      }\n      ```\n         Just like with `transitionTo` and `replaceWith`, `urlFor` can also handle\n      query parameters.\n         ```app/templates/application.hbs\n      <CopyLink @author={{hash id=\"tomster\" name=\"Tomster\"}} />\n      ```\n         ```app/components/copy-link.js\n      import Component from '@glimmer/component';\n      import { inject as service } from '@ember/service';\n      import { action } from '@ember/object';\n         export default class CopyLinkComponent extends Component {\n        @service router;\n        @service clipboard;\n           @action\n        copyOnlyEmberBooksURL() {\n          if (this.author) {\n            const url = this.router.urlFor('author.books', this.author, {\n              queryParams: { filter: 'emberjs' }\n            });\n            this.clipboard.set(url);\n            // Clipboard now has /author/tomster/books?filter=emberjs\n          }\n        }\n      }\n      ```\n          @method urlFor\n       @param {String} routeName the name of the route\n       @param {...Object} models the model(s) or identifier(s) to be used while\n         transitioning to the route.\n       @param {Object} [options] optional hash with a queryParams property\n         containing a mapping of query parameters\n       @return {String} the string representing the generated URL\n       @public\n     */\n\n\n    urlFor(routeName, ...args) {\n      return this._router.generate(routeName, ...args);\n    }\n    /**\n       Returns `true` if `routeName/models/queryParams` is the active route, where `models` and `queryParams` are optional.\n       See [model](api/ember/release/classes/Route/methods/model?anchor=model) and\n       [queryParams](/api/ember/3.7/classes/Route/properties/queryParams?anchor=queryParams) for more information about these arguments.\n          In the following example, `isActive` will return `true` if the current route is `/posts`.\n          ```app/components/posts.js\n       import Component from '@glimmer/component';\n       import { inject as service } from '@ember/service';\n          export default class extends Component {\n         @service router;\n            displayComments() {\n           return this.get('router').isActive('posts');\n         }\n       });\n       ```\n          The next example includes a dynamic segment, and will return `true` if the current route is `/posts/1`,\n       assuming the post has an id of 1:\n          ```app/components/posts.js\n       import Component from '@glimmer/component';\n       import { inject as service } from '@ember/service';\n          export default class extends Component {\n         @service router;\n            displayComments(post) {\n           return this.get('router').isActive('posts', post.id);\n         }\n       });\n       ```\n          Where `post.id` is the id of a specific post, which is represented in the route as /posts/[post.id].\n       If `post.id` is equal to 1, then isActive will return true if the current route is /posts/1, and false if the route is anything else.\n          @method isActive\n       @param {String} routeName the name of the route\n       @param {...Object} models the model(s) or identifier(s) to be used when determining the active route.\n       @param {Object} [options] optional hash with a queryParams property\n         containing a mapping of query parameters\n       @return {boolean} true if the provided routeName/models/queryParams are active\n       @public\n     */\n\n\n    isActive(...args) {\n      var {\n        routeName,\n        models,\n        queryParams\n      } = (0, _utils.extractRouteArgs)(args);\n      var routerMicrolib = this._router._routerMicrolib; // UNSAFE: casting `routeName as string` here encodes the existing\n      // assumption but may be wrong: `extractRouteArgs` correctly returns it as\n      // `string | undefined`. There may be bugs if `isActiveIntent` does\n      // not correctly account for `undefined` values for `routeName`. Spoilers:\n      // it *does not* account for this being `undefined`.\n\n      if (!routerMicrolib.isActiveIntent(routeName, models)) {\n        return false;\n      }\n\n      var hasQueryParams = Object.keys(queryParams).length > 0;\n\n      if (hasQueryParams) {\n        this._router._prepareQueryParams( // UNSAFE: casting `routeName as string` here encodes the existing\n        // assumption but may be wrong: `extractRouteArgs` correctly returns it\n        // as `string | undefined`. There may be bugs if `_prepareQueryParams`\n        // does not correctly account for `undefined` values for `routeName`.\n        //  Spoilers: under the hood this currently uses router.js APIs which\n        // *do not* account for this being `undefined`.\n        routeName, models, // UNSAFE: downstream consumers treat this as `QueryParam`, which the\n        // type system here *correctly* reports as incorrect, because it may be\n        // just an empty object.\n        queryParams, true\n        /* fromRouterService */\n        );\n\n        return (0, _utils.shallowEqual)(queryParams, routerMicrolib.state.queryParams);\n      }\n\n      return true;\n    }\n    /**\n       Takes a string URL and returns a `RouteInfo` for the leafmost route represented\n       by the URL. Returns `null` if the URL is not recognized. This method expects to\n       receive the actual URL as seen by the browser including the app's `rootURL`.\n          See [RouteInfo](/ember/release/classes/RouteInfo) for more info.\n          In the following example `recognize` is used to verify if a path belongs to our\n       application before transitioning to it.\n          ```\n       import Component from '@ember/component';\n       import { inject as service } from '@ember/service';\n          export default class extends Component {\n         @service router;\n         path = '/';\n            click() {\n           if (this.router.recognize(this.path)) {\n             this.router.transitionTo(this.path);\n           }\n         }\n       }\n       ```\n           @method recognize\n        @param {String} url\n        @public\n      */\n\n\n    recognize(url) {\n      (true && !(url.indexOf(this.rootURL) === 0) && (0, _debug.assert)(`You must pass a url that begins with the application's rootURL \"${this.rootURL}\"`, url.indexOf(this.rootURL) === 0));\n      var internalURL = cleanURL(url, this.rootURL);\n      return this._router._routerMicrolib.recognize(internalURL);\n    }\n    /**\n      Takes a string URL and returns a promise that resolves to a\n      `RouteInfoWithAttributes` for the leafmost route represented by the URL.\n      The promise rejects if the URL is not recognized or an unhandled exception\n      is encountered. This method expects to receive the actual URL as seen by\n      the browser including the app's `rootURL`.\n           @method recognizeAndLoad\n        @param {String} url\n        @public\n     */\n\n\n    recognizeAndLoad(url) {\n      (true && !(url.indexOf(this.rootURL) === 0) && (0, _debug.assert)(`You must pass a url that begins with the application's rootURL \"${this.rootURL}\"`, url.indexOf(this.rootURL) === 0));\n      var internalURL = cleanURL(url, this.rootURL);\n      return this._router._routerMicrolib.recognizeAndLoad(internalURL);\n    }\n\n  }\n\n  _exports.default = RouterService;\n  RouterService.reopen(_runtime.Evented, {\n    /**\n       Name of the current route.\n          This property represents the logical name of the route,\n       which is comma separated.\n       For the following router:\n          ```app/router.js\n       Router.map(function() {\n         this.route('about');\n         this.route('blog', function () {\n           this.route('post', { path: ':post_id' });\n         });\n       });\n       ```\n          It will return:\n          * `index` when you visit `/`\n       * `about` when you visit `/about`\n       * `blog.index` when you visit `/blog`\n       * `blog.post` when you visit `/blog/some-post-id`\n          @property currentRouteName\n       @type String\n       @public\n     */\n    currentRouteName: (0, _computed.readOnly)('_router.currentRouteName'),\n\n    /**\n       Current URL for the application.\n         This property represents the URL path for this route.\n      For the following router:\n          ```app/router.js\n       Router.map(function() {\n         this.route('about');\n         this.route('blog', function () {\n           this.route('post', { path: ':post_id' });\n         });\n       });\n       ```\n          It will return:\n          * `/` when you visit `/`\n       * `/about` when you visit `/about`\n       * `/blog` when you visit `/blog`\n       * `/blog/some-post-id` when you visit `/blog/some-post-id`\n          @property currentURL\n       @type String\n       @public\n     */\n    currentURL: (0, _computed.readOnly)('_router.currentURL'),\n\n    /**\n      The `location` property returns what implementation of the `location` API\n      your application is using, which determines what type of URL is being used.\n         See [Location](/ember/release/classes/Location) for more information.\n         To force a particular `location` API implementation to be used in your\n      application you can set a location type on your `config/environment`.\n      For example, to set the `history` type:\n         ```config/environment.js\n      'use strict';\n         module.exports = function(environment) {\n        let ENV = {\n          modulePrefix: 'router-service',\n          environment,\n          rootURL: '/',\n          locationType: 'history',\n          ...\n        }\n      }\n      ```\n         The following location types are available by default:\n      `auto`, `hash`, `history`, `none`.\n         See [HashLocation](/ember/release/classes/HashLocation).\n      See [HistoryLocation](/ember/release/classes/HistoryLocation).\n      See [NoneLocation](/ember/release/classes/NoneLocation).\n      See [AutoLocation](/ember/release/classes/AutoLocation).\n         @property location\n      @default 'hash'\n      @see {Location}\n      @public\n    */\n    location: (0, _computed.readOnly)('_router.location'),\n\n    /**\n      The `rootURL` property represents the URL of the root of\n      the application, '/' by default.\n      This prefix is assumed on all routes defined on this app.\n         If you change the `rootURL` in your environment configuration\n      like so:\n         ```config/environment.js\n      'use strict';\n         module.exports = function(environment) {\n        let ENV = {\n          modulePrefix: 'router-service',\n          environment,\n          rootURL: '/my-root',\n        …\n        }\n      ]\n      ```\n         This property will return `/my-root`.\n         @property rootURL\n      @default '/'\n      @public\n    */\n    rootURL: (0, _computed.readOnly)('_router.rootURL'),\n\n    /**\n      The `currentRoute` property contains metadata about the current leaf route.\n      It returns a `RouteInfo` object that has information like the route name,\n      params, query params and more.\n         See [RouteInfo](/ember/release/classes/RouteInfo) for more info.\n         This property is guaranteed to change whenever a route transition\n      happens (even when that transition only changes parameters\n      and doesn't change the active route).\n         Usage example:\n      ```app/components/header.js\n        import Component from '@glimmer/component';\n        import { inject as service } from '@ember/service';\n        import { notEmpty } from '@ember/object/computed';\n           export default class extends Component {\n          @service router;\n             @notEmpty('router.currentRoute.child') isChildRoute;\n        });\n      ```\n          @property currentRoute\n       @type RouteInfo\n       @public\n     */\n    currentRoute: (0, _computed.readOnly)('_router.currentRoute')\n  });\n});","define(\"@ember/-internals/routing/lib/services/routing\", [\"exports\", \"@ember/object/computed\", \"@ember/polyfills\", \"@ember/service\"], function (_exports, _computed, _polyfills, _service) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n  @module ember\n  */\n\n  /**\n    The Routing service is used by LinkComponent, and provides facilities for\n    the component/view layer to interact with the router.\n  \n    This is a private service for internal usage only. For public usage,\n    refer to the `Router` service.\n  \n    @private\n    @class RoutingService\n  */\n  class RoutingService extends _service.default {\n    hasRoute(routeName) {\n      return this.router.hasRoute(routeName);\n    }\n\n    transitionTo(routeName, models, queryParams, shouldReplace) {\n      var transition = this.router._doTransition(routeName, models, queryParams);\n\n      if (shouldReplace) {\n        transition.method('replace');\n      }\n\n      return transition;\n    }\n\n    normalizeQueryParams(routeName, models, queryParams) {\n      this.router._prepareQueryParams(routeName, models, queryParams);\n    }\n\n    generateURL(routeName, models, queryParams) {\n      var router = this.router; // return early when the router microlib is not present, which is the case for {{link-to}} in integration tests\n\n      if (!router._routerMicrolib) {\n        return;\n      }\n\n      var visibleQueryParams = {};\n\n      if (queryParams) {\n        (0, _polyfills.assign)(visibleQueryParams, queryParams);\n        this.normalizeQueryParams(routeName, models, visibleQueryParams);\n      }\n\n      return router.generate(routeName, ...models, {\n        queryParams: visibleQueryParams\n      });\n    }\n\n    isActiveForRoute(contexts, queryParams, routeName, routerState, isCurrentWhenSpecified) {\n      var handlers = this.router._routerMicrolib.recognizer.handlersFor(routeName);\n\n      var leafName = handlers[handlers.length - 1].handler;\n      var maximumContexts = numberOfContextsAcceptedByHandler(routeName, handlers); // NOTE: any ugliness in the calculation of activeness is largely\n      // due to the fact that we support automatic normalizing of\n      // `resource` -> `resource.index`, even though there might be\n      // dynamic segments / query params defined on `resource.index`\n      // which complicates (and makes somewhat ambiguous) the calculation\n      // of activeness for links that link to `resource` instead of\n      // directly to `resource.index`.\n      // if we don't have enough contexts revert back to full route name\n      // this is because the leaf route will use one of the contexts\n\n      if (contexts.length > maximumContexts) {\n        routeName = leafName;\n      }\n\n      return routerState.isActiveIntent(routeName, contexts, queryParams, !isCurrentWhenSpecified);\n    }\n\n  }\n\n  _exports.default = RoutingService;\n  RoutingService.reopen({\n    targetState: (0, _computed.readOnly)('router.targetState'),\n    currentState: (0, _computed.readOnly)('router.currentState'),\n    currentRouteName: (0, _computed.readOnly)('router.currentRouteName'),\n    currentPath: (0, _computed.readOnly)('router.currentPath')\n  });\n\n  function numberOfContextsAcceptedByHandler(handlerName, handlerInfos) {\n    var req = 0;\n\n    for (var i = 0; i < handlerInfos.length; i++) {\n      req += handlerInfos[i].names.length;\n\n      if (handlerInfos[i].handler === handlerName) {\n        break;\n      }\n    }\n\n    return req;\n  }\n});","define(\"@ember/-internals/routing/lib/system/cache\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n    A two-tiered cache with support for fallback values when doing lookups.\n    Uses \"buckets\" and then \"keys\" to cache values.\n  \n    @private\n    @class BucketCache\n  */\n  class BucketCache {\n    constructor() {\n      this.cache = new Map();\n    }\n\n    has(bucketKey) {\n      return this.cache.has(bucketKey);\n    }\n\n    stash(bucketKey, key, value) {\n      var bucket = this.cache.get(bucketKey);\n\n      if (bucket === undefined) {\n        bucket = new Map();\n        this.cache.set(bucketKey, bucket);\n      }\n\n      bucket.set(key, value);\n    }\n\n    lookup(bucketKey, prop, defaultValue) {\n      if (!this.has(bucketKey)) {\n        return defaultValue;\n      }\n\n      var bucket = this.cache.get(bucketKey);\n\n      if (bucket.has(prop)) {\n        return bucket.get(prop);\n      } else {\n        return defaultValue;\n      }\n    }\n\n  }\n\n  _exports.default = BucketCache;\n});","define(\"@ember/-internals/routing/lib/system/controller_for\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = controllerFor;\n\n  /**\n  @module ember\n  */\n\n  /**\n    Finds a controller instance.\n  \n    @for Ember\n    @method controllerFor\n    @private\n  */\n  function controllerFor(container, controllerName, lookupOptions) {\n    return container.lookup(`controller:${controllerName}`, lookupOptions);\n  }\n});","define(\"@ember/-internals/routing/lib/system/dsl\", [\"exports\", \"@ember/debug\", \"@ember/polyfills\"], function (_exports, _debug, _polyfills) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n  var uuid = 0;\n\n  function isCallback(value) {\n    return typeof value === 'function';\n  }\n\n  function isOptions(value) {\n    return value !== null && typeof value === 'object';\n  }\n\n  class DSLImpl {\n    constructor(name = null, options) {\n      this.explicitIndex = false;\n      this.parent = name;\n      this.enableLoadingSubstates = Boolean(options && options.enableLoadingSubstates);\n      this.matches = [];\n      this.options = options;\n    }\n\n    route(name, _options, _callback) {\n      var options;\n      var callback = null;\n      var dummyErrorRoute = `/_unused_dummy_error_path_route_${name}/:error`;\n\n      if (isCallback(_options)) {\n        (true && !(arguments.length === 2) && (0, _debug.assert)('Unexpected arguments', arguments.length === 2));\n        options = {};\n        callback = _options;\n      } else if (isCallback(_callback)) {\n        (true && !(arguments.length === 3) && (0, _debug.assert)('Unexpected arguments', arguments.length === 3));\n        (true && !(isOptions(_options)) && (0, _debug.assert)('Unexpected arguments', isOptions(_options)));\n        options = _options;\n        callback = _callback;\n      } else {\n        options = _options || {};\n      }\n\n      (true && !((() => {\n        if (options.overrideNameAssertion === true) {\n          return true;\n        }\n\n        return ['basic', 'application'].indexOf(name) === -1;\n      })()) && (0, _debug.assert)(`'${name}' cannot be used as a route name.`, (() => {\n        if (options.overrideNameAssertion === true) {\n          return true;\n        }\n\n        return ['basic', 'application'].indexOf(name) === -1;\n      })()));\n      (true && !(name.indexOf(':') === -1) && (0, _debug.assert)(`'${name}' is not a valid route name. It cannot contain a ':'. You may want to use the 'path' option instead.`, name.indexOf(':') === -1));\n\n      if (this.enableLoadingSubstates) {\n        createRoute(this, `${name}_loading`, {\n          resetNamespace: options.resetNamespace\n        });\n        createRoute(this, `${name}_error`, {\n          resetNamespace: options.resetNamespace,\n          path: dummyErrorRoute\n        });\n      }\n\n      if (callback) {\n        var fullName = getFullName(this, name, options.resetNamespace);\n        var dsl = new DSLImpl(fullName, this.options);\n        createRoute(dsl, 'loading');\n        createRoute(dsl, 'error', {\n          path: dummyErrorRoute\n        });\n        callback.call(dsl);\n        createRoute(this, name, options, dsl.generate());\n      } else {\n        createRoute(this, name, options);\n      }\n    }\n    /* eslint-enable no-dupe-class-members */\n\n\n    push(url, name, callback, serialize) {\n      var parts = name.split('.');\n\n      if (this.options.engineInfo) {\n        var localFullName = name.slice(this.options.engineInfo.fullName.length + 1);\n        var routeInfo = (0, _polyfills.assign)({\n          localFullName\n        }, this.options.engineInfo);\n\n        if (serialize) {\n          routeInfo.serializeMethod = serialize;\n        }\n\n        this.options.addRouteForEngine(name, routeInfo);\n      } else if (serialize) {\n        throw new Error(`Defining a route serializer on route '${name}' outside an Engine is not allowed.`);\n      }\n\n      if (url === '' || url === '/' || parts[parts.length - 1] === 'index') {\n        this.explicitIndex = true;\n      }\n\n      this.matches.push(url, name, callback);\n    }\n\n    generate() {\n      var dslMatches = this.matches;\n\n      if (!this.explicitIndex) {\n        this.route('index', {\n          path: '/'\n        });\n      }\n\n      return match => {\n        for (var i = 0; i < dslMatches.length; i += 3) {\n          match(dslMatches[i]).to(dslMatches[i + 1], dslMatches[i + 2]);\n        }\n      };\n    }\n\n    mount(_name, options = {}) {\n      var engineRouteMap = this.options.resolveRouteMap(_name);\n      var name = _name;\n\n      if (options.as) {\n        name = options.as;\n      }\n\n      var fullName = getFullName(this, name, options.resetNamespace);\n      var engineInfo = {\n        name: _name,\n        instanceId: uuid++,\n        mountPoint: fullName,\n        fullName\n      };\n      var path = options.path;\n\n      if (typeof path !== 'string') {\n        path = `/${name}`;\n      }\n\n      var callback;\n      var dummyErrorRoute = `/_unused_dummy_error_path_route_${name}/:error`;\n\n      if (engineRouteMap) {\n        var shouldResetEngineInfo = false;\n        var oldEngineInfo = this.options.engineInfo;\n\n        if (oldEngineInfo) {\n          shouldResetEngineInfo = true;\n          this.options.engineInfo = engineInfo;\n        }\n\n        var optionsForChild = (0, _polyfills.assign)({\n          engineInfo\n        }, this.options);\n        var childDSL = new DSLImpl(fullName, optionsForChild);\n        createRoute(childDSL, 'loading');\n        createRoute(childDSL, 'error', {\n          path: dummyErrorRoute\n        });\n        engineRouteMap.class.call(childDSL);\n        callback = childDSL.generate();\n\n        if (shouldResetEngineInfo) {\n          this.options.engineInfo = oldEngineInfo;\n        }\n      }\n\n      var localFullName = 'application';\n      var routeInfo = (0, _polyfills.assign)({\n        localFullName\n      }, engineInfo);\n\n      if (this.enableLoadingSubstates) {\n        // These values are important to register the loading routes under their\n        // proper names for the Router and within the Engine's registry.\n        var substateName = `${name}_loading`;\n        var _localFullName = `application_loading`;\n\n        var _routeInfo = (0, _polyfills.assign)({\n          localFullName: _localFullName\n        }, engineInfo);\n\n        createRoute(this, substateName, {\n          resetNamespace: options.resetNamespace\n        });\n        this.options.addRouteForEngine(substateName, _routeInfo);\n        substateName = `${name}_error`;\n        _localFullName = `application_error`;\n        _routeInfo = (0, _polyfills.assign)({\n          localFullName: _localFullName\n        }, engineInfo);\n        createRoute(this, substateName, {\n          resetNamespace: options.resetNamespace,\n          path: dummyErrorRoute\n        });\n        this.options.addRouteForEngine(substateName, _routeInfo);\n      }\n\n      this.options.addRouteForEngine(fullName, routeInfo);\n      this.push(path, fullName, callback);\n    }\n\n  }\n\n  _exports.default = DSLImpl;\n\n  function canNest(dsl) {\n    return dsl.parent !== 'application';\n  }\n\n  function getFullName(dsl, name, resetNamespace) {\n    if (canNest(dsl) && resetNamespace !== true) {\n      return `${dsl.parent}.${name}`;\n    } else {\n      return name;\n    }\n  }\n\n  function createRoute(dsl, name, options = {}, callback) {\n    var fullName = getFullName(dsl, name, options.resetNamespace);\n\n    if (typeof options.path !== 'string') {\n      options.path = `/${name}`;\n    }\n\n    dsl.push(options.path, fullName, callback, options.serialize);\n  }\n});","define(\"@ember/-internals/routing/lib/system/engines\", [], function () {\n  \"use strict\";\n});","define(\"@ember/-internals/routing/lib/system/generate_controller\", [\"exports\", \"@ember/-internals/metal\", \"@ember/debug\"], function (_exports, _metal, _debug) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.generateControllerFactory = generateControllerFactory;\n  _exports.default = generateController;\n\n  /**\n  @module ember\n  */\n\n  /**\n    Generates a controller factory\n  \n    @for Ember\n    @method generateControllerFactory\n    @private\n  */\n  function generateControllerFactory(owner, controllerName) {\n    var Factory = owner.factoryFor('controller:basic').class;\n    Factory = Factory.extend({\n      toString() {\n        return `(generated ${controllerName} controller)`;\n      }\n\n    });\n    var fullName = `controller:${controllerName}`;\n    owner.register(fullName, Factory);\n    return owner.factoryFor(fullName);\n  }\n  /**\n    Generates and instantiates a controller extending from `controller:basic`\n    if present, or `Controller` if not.\n  \n    @for Ember\n    @method generateController\n    @private\n    @since 1.3.0\n  */\n\n\n  function generateController(owner, controllerName) {\n    generateControllerFactory(owner, controllerName);\n    var fullName = `controller:${controllerName}`;\n    var instance = owner.lookup(fullName);\n\n    if (true\n    /* DEBUG */\n    ) {\n      if ((0, _metal.get)(instance, 'namespace.LOG_ACTIVE_GENERATION')) {\n        (0, _debug.info)(`generated -> ${fullName}`, {\n          fullName\n        });\n      }\n    }\n\n    return instance;\n  }\n});","define(\"@ember/-internals/routing/lib/system/query_params\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  class QueryParams {\n    constructor(values = null) {\n      this.isQueryParams = true;\n      this.values = values;\n    }\n\n  }\n\n  _exports.default = QueryParams;\n});","define(\"@ember/-internals/routing/lib/system/route-info\", [], function () {\n  \"use strict\";\n  /**\n    A `RouteInfoWithAttributes` is an object that contains\n    metadata, including the resolved value from the routes\n    `model` hook. Like `RouteInfo`, a `RouteInfoWithAttributes`\n    represents a specific route within a Transition.\n    It is read-only and internally immutable. It is also not\n    observable, because a Transition instance is never\n    changed after creation.\n  \n    @class RouteInfoWithAttributes\n    @public\n  */\n\n  /**\n    The dot-separated, fully-qualified name of the\n    route, like \"people.index\".\n    @property {String} name\n    @public\n  */\n\n  /**\n    The final segment of the fully-qualified name of\n    the route, like \"index\"\n    @property {String} localName\n    @public\n  */\n\n  /**\n    The values of the route's parameters. These are the\n    same params that are received as arguments to the\n    route's model hook. Contains only the parameters\n    valid for this route, if any (params for parent or\n    child routes are not merged).\n    @property {Object} params\n    @public\n  */\n\n  /**\n    The ordered list of the names of the params\n    required for this route. It will contain the same\n    strings as `Object.keys(params)`, but here the order\n    is significant. This allows users to correctly pass\n    params into routes programmatically.\n    @property {Array} paramNames\n    @public\n  */\n\n  /**\n    The values of any queryParams on this route.\n    @property {Object} queryParams\n    @public\n  */\n\n  /**\n    This is the resolved return value from the\n    route's model hook.\n    @property {Object|Array|String} attributes\n    @public\n  */\n\n  /**\n    Will contain the result `Route#buildRouteInfoMetadata`\n    for the corresponding Route.\n    @property {Any} metadata\n    @public\n  */\n\n  /**\n    A reference to the parent route's RouteInfo.\n    This can be used to traverse upward to the topmost\n    `RouteInfo`.\n    @property {RouteInfo|null} parent\n    @public\n  */\n\n  /**\n    A reference to the child route's RouteInfo.\n    This can be used to traverse downward to the\n    leafmost `RouteInfo`.\n    @property {RouteInfo|null} child\n    @public\n  */\n\n  /**\n    Allows you to traverse through the linked list\n    of `RouteInfo`s from the topmost to leafmost.\n    Returns the first `RouteInfo` in the linked list\n    for which the callback returns true.\n  \n      This method is similar to the `find()` method\n      defined in ECMAScript 2015.\n  \n      The callback method you provide should have the\n      following signature (all parameters are optional):\n  \n      ```javascript\n      function(item, index, array);\n      ```\n  \n      - `item` is the current item in the iteration.\n      - `index` is the current index in the iteration.\n      - `array` is the array itself.\n  \n      It should return the `true` to include the item in\n      the results, `false` otherwise.\n  \n      Note that in addition to a callback, you can also\n      pass an optional target object that will be set as\n      `this` on the context.\n  \n    @method find\n    @param {Function} callback the callback to execute\n    @param {Object} [target*] optional target to use\n    @returns {Object} Found item or undefined\n    @public\n  */\n\n  /**\n    A RouteInfo is an object that contains metadata\n    about a specific route within a Transition. It is\n    read-only and internally immutable. It is also not\n    observable, because a Transition instance is never\n    changed after creation.\n  \n    @class RouteInfo\n    @public\n  */\n\n  /**\n    The dot-separated, fully-qualified name of the\n    route, like \"people.index\".\n    @property {String} name\n    @public\n  */\n\n  /**\n    The final segment of the fully-qualified name of\n    the route, like \"index\"\n    @property {String} localName\n    @public\n  */\n\n  /**\n    The values of the route's parameters. These are the\n    same params that are received as arguments to the\n    route's `model` hook. Contains only the parameters\n    valid for this route, if any (params for parent or\n    child routes are not merged).\n    @property {Object} params\n    @public\n  */\n\n  /**\n    The ordered list of the names of the params\n    required for this route. It will contain the same\n    strings as Object.keys(params), but here the order\n    is significant. This allows users to correctly pass\n    params into routes programmatically.\n    @property {Array} paramNames\n    @public\n  */\n\n  /**\n    The values of any queryParams on this route.\n    @property {Object} queryParams\n    @public\n  */\n\n  /**\n    A reference to the parent route's `RouteInfo`.\n    This can be used to traverse upward to the topmost\n    `RouteInfo`.\n    @property {RouteInfo|null} parent\n    @public\n  */\n\n  /**\n    A reference to the child route's `RouteInfo`.\n    This can be used to traverse downward to the\n    leafmost `RouteInfo`.\n    @property {RouteInfo|null} child\n    @public\n  */\n\n  /**\n    Allows you to traverse through the linked list\n    of `RouteInfo`s from the topmost to leafmost.\n    Returns the first `RouteInfo` in the linked list\n    for which the callback returns true.\n  \n      This method is similar to the `find()` method\n      defined in ECMAScript 2015.\n  \n      The callback method you provide should have the\n      following signature (all parameters are optional):\n  \n      ```javascript\n      function(item, index, array);\n      ```\n  \n      - `item` is the current item in the iteration.\n      - `index` is the current index in the iteration.\n      - `array` is the array itself.\n  \n      It should return the `true` to include the item in\n      the results, `false` otherwise.\n  \n      Note that in addition to a callback, you can also\n      pass an optional target object that will be set as\n      `this` on the context.\n  \n    @method find\n    @param {Function} callback the callback to execute\n    @param {Object} [target*] optional target to use\n    @returns {Object} Found item or undefined\n    @public\n  */\n});","define(\"@ember/-internals/routing/lib/system/route\", [\"exports\", \"@ember/polyfills\", \"@ember/-internals/metal\", \"@ember/-internals/owner\", \"@ember/-internals/runtime\", \"@ember/-internals/utils\", \"@ember/debug\", \"@ember/deprecated-features\", \"@ember/object/compat\", \"@ember/runloop\", \"@ember/string\", \"router_js\", \"@ember/-internals/routing/lib/utils\", \"@ember/-internals/routing/lib/system/generate_controller\"], function (_exports, _polyfills, _metal, _owner, _runtime, _utils, _debug, _deprecatedFeatures, _compat, _runloop, _string, _router_js, _utils2, _generate_controller) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.defaultSerialize = defaultSerialize;\n  _exports.hasDefaultSerialize = hasDefaultSerialize;\n  _exports.default = _exports.ROUTER_EVENT_DEPRECATIONS = _exports.ROUTE_CONNECTIONS = void 0;\n  var ROUTE_CONNECTIONS = new WeakMap();\n  _exports.ROUTE_CONNECTIONS = ROUTE_CONNECTIONS;\n\n  function defaultSerialize(model, params) {\n    if (params.length < 1 || !model) {\n      return;\n    }\n\n    var object = {};\n\n    if (params.length === 1) {\n      var [name] = params;\n\n      if (name in model) {\n        object[name] = (0, _metal.get)(model, name);\n      } else if (/_id$/.test(name)) {\n        object[name] = (0, _metal.get)(model, 'id');\n      }\n    } else {\n      object = (0, _metal.getProperties)(model, params);\n    }\n\n    return object;\n  }\n\n  function hasDefaultSerialize(route) {\n    return route.serialize === defaultSerialize;\n  }\n  /**\n  @module @ember/routing\n  */\n\n  /**\n    The `Route` class is used to define individual routes. Refer to\n    the [routing guide](https://guides.emberjs.com/release/routing/) for documentation.\n  \n    @class Route\n    @extends EmberObject\n    @uses ActionHandler\n    @uses Evented\n    @since 1.0.0\n    @public\n  */\n\n\n  class Route extends _runtime.Object {\n    constructor() {\n      super(...arguments);\n      this.context = {};\n    }\n    /**\n      The name of the route, dot-delimited.\n         For example, a route found at `app/routes/posts/post.js` will have\n      a `routeName` of `posts.post`.\n         @property routeName\n      @for Route\n      @type String\n      @since 1.0.0\n      @public\n    */\n\n    /**\n      The name of the route, dot-delimited, including the engine prefix\n      if applicable.\n         For example, a route found at `addon/routes/posts/post.js` within an\n      engine named `admin` will have a `fullRouteName` of `admin.posts.post`.\n         @property fullRouteName\n      @for Route\n      @type String\n      @since 2.10.0\n      @public\n    */\n\n    /**\n      Sets the name for this route, including a fully resolved name for routes\n      inside engines.\n         @private\n      @method _setRouteName\n      @param {String} name\n    */\n\n\n    _setRouteName(name) {\n      this.routeName = name;\n      this.fullRouteName = getEngineRouteName((0, _owner.getOwner)(this), name);\n    }\n    /**\n      @private\n         @method _stashNames\n    */\n\n\n    _stashNames(routeInfo, dynamicParent) {\n      if (this._names) {\n        return;\n      }\n\n      var names = this._names = routeInfo['_names'];\n\n      if (!names.length) {\n        routeInfo = dynamicParent;\n        names = routeInfo && routeInfo['_names'] || [];\n      }\n\n      var qps = (0, _metal.get)(this, '_qp.qps');\n      var namePaths = new Array(names.length);\n\n      for (var a = 0; a < names.length; ++a) {\n        namePaths[a] = `${routeInfo.name}.${names[a]}`;\n      }\n\n      for (var i = 0; i < qps.length; ++i) {\n        var qp = qps[i];\n\n        if (qp.scope === 'model') {\n          qp.parts = namePaths;\n        }\n      }\n    }\n    /**\n      @private\n         @property _activeQPChanged\n    */\n\n\n    _activeQPChanged(qp, value) {\n      this._router._activeQPChanged(qp.scopedPropertyName, value);\n    }\n    /**\n      @private\n      @method _updatingQPChanged\n    */\n\n\n    _updatingQPChanged(qp) {\n      this._router._updatingQPChanged(qp.urlKey);\n    }\n    /**\n      Returns a hash containing the parameters of an ancestor route.\n         You may notice that `this.paramsFor` sometimes works when referring to a\n      child route, but this behavior should not be relied upon as only ancestor\n      routes are certain to be loaded in time.\n         Example\n         ```app/router.js\n      // ...\n         Router.map(function() {\n        this.route('member', { path: ':name' }, function() {\n          this.route('interest', { path: ':interest' });\n        });\n      });\n      ```\n         ```app/routes/member.js\n      import Route from '@ember/routing/route';\n         export default class MemberRoute extends Route {\n        queryParams = {\n          memberQp: { refreshModel: true }\n        }\n      }\n      ```\n         ```app/routes/member/interest.js\n      import Route from '@ember/routing/route';\n         export default class MemberInterestRoute Route {\n        queryParams = {\n          interestQp: { refreshModel: true }\n        }\n           model() {\n          return this.paramsFor('member');\n        }\n      }\n      ```\n         If we visit `/turing/maths?memberQp=member&interestQp=interest` the model for\n      the `member.interest` route is a hash with:\n         * `name`: `turing`\n      * `memberQp`: `member`\n         @method paramsFor\n      @param {String} name\n      @return {Object} hash containing the parameters of the route `name`\n      @since 1.4.0\n      @public\n    */\n\n\n    paramsFor(name) {\n      var route = (0, _owner.getOwner)(this).lookup(`route:${name}`);\n\n      if (route === undefined) {\n        return {};\n      }\n\n      var transition = this._router._routerMicrolib.activeTransition;\n      var state = transition ? transition[_router_js.STATE_SYMBOL] : this._router._routerMicrolib.state;\n      var fullName = route.fullRouteName;\n      var params = (0, _polyfills.assign)({}, state.params[fullName]);\n      var queryParams = getQueryParamsFor(route, state);\n      return Object.keys(queryParams).reduce((params, key) => {\n        (true && !(!params[key]) && (0, _debug.assert)(`The route '${this.routeName}' has both a dynamic segment and query param with name '${key}'. Please rename one to avoid collisions.`, !params[key]));\n        params[key] = queryParams[key];\n        return params;\n      }, params);\n    }\n    /**\n      Serializes the query parameter key\n         @method serializeQueryParamKey\n      @param {String} controllerPropertyName\n      @private\n    */\n\n\n    serializeQueryParamKey(controllerPropertyName) {\n      return controllerPropertyName;\n    }\n    /**\n      Serializes value of the query parameter based on defaultValueType\n         @method serializeQueryParam\n      @param {Object} value\n      @param {String} urlKey\n      @param {String} defaultValueType\n      @private\n    */\n\n\n    serializeQueryParam(value, _urlKey, defaultValueType) {\n      // urlKey isn't used here, but anyone overriding\n      // can use it to provide serialization specific\n      // to a certain query param.\n      return this._router._serializeQueryParam(value, defaultValueType);\n    }\n    /**\n      Deserializes value of the query parameter based on defaultValueType\n         @method deserializeQueryParam\n      @param {Object} value\n      @param {String} urlKey\n      @param {String} defaultValueType\n      @private\n    */\n\n\n    deserializeQueryParam(value, _urlKey, defaultValueType) {\n      // urlKey isn't used here, but anyone overriding\n      // can use it to provide deserialization specific\n      // to a certain query param.\n      return this._router._deserializeQueryParam(value, defaultValueType);\n    }\n    /**\n      @private\n         @property _optionsForQueryParam\n    */\n\n\n    _optionsForQueryParam(qp) {\n      return (0, _metal.get)(this, `queryParams.${qp.urlKey}`) || (0, _metal.get)(this, `queryParams.${qp.prop}`) || {};\n    }\n    /**\n      A hook you can use to reset controller values either when the model\n      changes or the route is exiting.\n         ```app/routes/articles.js\n      import Route from '@ember/routing/route';\n         export default class ArticlesRoute extends Route {\n        resetController(controller, isExiting, transition) {\n          if (isExiting && transition.targetName !== 'error') {\n            controller.set('page', 1);\n          }\n        }\n      }\n      ```\n         @method resetController\n      @param {Controller} controller instance\n      @param {Boolean} isExiting\n      @param {Object} transition\n      @since 1.7.0\n      @public\n    */\n\n\n    resetController(_controller, _isExiting, _transition) {\n      return this;\n    }\n    /**\n      @private\n         @method exit\n    */\n\n\n    exit() {\n      this.deactivate();\n      this.trigger('deactivate');\n      this.teardownViews();\n    }\n    /**\n      @private\n         @method _internalReset\n      @since 3.6.0\n    */\n\n\n    _internalReset(isExiting, transition) {\n      var controller = this.controller;\n      controller['_qpDelegate'] = (0, _metal.get)(this, '_qp.states.inactive');\n      this.resetController(controller, isExiting, transition);\n    }\n    /**\n      @private\n         @method enter\n    */\n\n\n    enter() {\n      ROUTE_CONNECTIONS.set(this, []);\n      this.activate();\n      this.trigger('activate');\n    }\n    /**\n      The `willTransition` action is fired at the beginning of any\n      attempted transition with a `Transition` object as the sole\n      argument. This action can be used for aborting, redirecting,\n      or decorating the transition from the currently active routes.\n         A good example is preventing navigation when a form is\n      half-filled out:\n         ```app/routes/contact-form.js\n      import Route from '@ember/routing/route';\n      import { action } from '@ember/object';\n         export default class ContactFormRoute extends Route {\n        @action\n        willTransition(transition) {\n          if (this.controller.get('userHasEnteredData')) {\n            this.controller.displayNavigationConfirm();\n            transition.abort();\n          }\n        }\n      }\n      ```\n         You can also redirect elsewhere by calling\n      `this.transitionTo('elsewhere')` from within `willTransition`.\n      Note that `willTransition` will not be fired for the\n      redirecting `transitionTo`, since `willTransition` doesn't\n      fire when there is already a transition underway. If you want\n      subsequent `willTransition` actions to fire for the redirecting\n      transition, you must first explicitly call\n      `transition.abort()`.\n         To allow the `willTransition` event to continue bubbling to the parent\n      route, use `return true;`. When the `willTransition` method has a\n      return value of `true` then the parent route's `willTransition` method\n      will be fired, enabling \"bubbling\" behavior for the event.\n         @event willTransition\n      @param {Transition} transition\n      @since 1.0.0\n      @public\n    */\n\n    /**\n      The `didTransition` action is fired after a transition has\n      successfully been completed. This occurs after the normal model\n      hooks (`beforeModel`, `model`, `afterModel`, `setupController`)\n      have resolved. The `didTransition` action has no arguments,\n      however, it can be useful for tracking page views or resetting\n      state on the controller.\n         ```app/routes/login.js\n      import Route from '@ember/routing/route';\n      import { action } from '@ember/object';\n         export default class LoginRoute extends Route {\n        @action\n        didTransition() {\n          this.controller.get('errors.base').clear();\n          return true; // Bubble the didTransition event\n        }\n      }\n      ```\n         @event didTransition\n      @since 1.2.0\n      @public\n    */\n\n    /**\n      The `loading` action is fired on the route when a route's `model`\n      hook returns a promise that is not already resolved. The current\n      `Transition` object is the first parameter and the route that\n      triggered the loading event is the second parameter.\n         ```app/routes/application.js\n      import Route from '@ember/routing/route';\n      import { action } from '@ember/object';\n         export default class ApplicationRoute extends Route {\n        @action\n        loading(transition, route) {\n          let controller = this.controllerFor('foo');\n          controller.set('currentlyLoading', true);\n             transition.finally(function() {\n            controller.set('currentlyLoading', false);\n          });\n        }\n      }\n      ```\n         @event loading\n      @param {Transition} transition\n      @param {Route} route The route that triggered the loading event\n      @since 1.2.0\n      @public\n    */\n\n    /**\n      When attempting to transition into a route, any of the hooks\n      may return a promise that rejects, at which point an `error`\n      action will be fired on the partially-entered routes, allowing\n      for per-route error handling logic, or shared error handling\n      logic defined on a parent route.\n         Here is an example of an error handler that will be invoked\n      for rejected promises from the various hooks on the route,\n      as well as any unhandled errors from child routes:\n         ```app/routes/admin.js\n      import { reject } from 'rsvp';\n      import Route from '@ember/routing/route';\n      import { action } from '@ember/object';\n         export default class AdminRoute extends Route {\n        beforeModel() {\n          return reject('bad things!');\n        }\n           @action\n        error(error, transition) {\n          // Assuming we got here due to the error in `beforeModel`,\n          // we can expect that error === \"bad things!\",\n          // but a promise model rejecting would also\n          // call this hook, as would any errors encountered\n          // in `afterModel`.\n             // The `error` hook is also provided the failed\n          // `transition`, which can be stored and later\n          // `.retry()`d if desired.\n             this.transitionTo('login');\n        }\n      }\n      ```\n         `error` actions that bubble up all the way to `ApplicationRoute`\n      will fire a default error handler that logs the error. You can\n      specify your own global default error handler by overriding the\n      `error` handler on `ApplicationRoute`:\n         ```app/routes/application.js\n      import Route from '@ember/routing/route';\n      import { action } from '@ember/object';\n         export default class ApplicationRoute extends Route {\n        @action\n        error(error, transition) {\n          this.controllerFor('banner').displayError(error.message);\n        }\n      }\n      ```\n      @event error\n      @param {Error} error\n      @param {Transition} transition\n      @since 1.0.0\n      @public\n    */\n\n    /**\n      This event is triggered when the router enters the route. It is\n      not executed when the model for the route changes.\n         ```app/routes/application.js\n      import { on } from '@ember/object/evented';\n      import Route from '@ember/routing/route';\n         export default Route.extend({\n        collectAnalytics: on('activate', function(){\n          collectAnalytics();\n        })\n      });\n      ```\n         @event activate\n      @since 1.9.0\n      @public\n    */\n\n    /**\n      This event is triggered when the router completely exits this\n      route. It is not executed when the model for the route changes.\n         ```app/routes/index.js\n      import { on } from '@ember/object/evented';\n      import Route from '@ember/routing/route';\n         export default Route.extend({\n        trackPageLeaveAnalytics: on('deactivate', function(){\n          trackPageLeaveAnalytics();\n        })\n      });\n      ```\n         @event deactivate\n      @since 1.9.0\n      @public\n    */\n\n    /**\n      This hook is executed when the router completely exits this route. It is\n      not executed when the model for the route changes.\n         @method deactivate\n      @since 1.0.0\n      @public\n    */\n\n\n    deactivate() {}\n    /**\n      This hook is executed when the router enters the route. It is not executed\n      when the model for the route changes.\n         @method activate\n      @since 1.0.0\n      @public\n    */\n\n\n    activate() {}\n    /**\n      Transition the application into another route. The route may\n      be either a single route or route path:\n         ```javascript\n      this.transitionTo('blogPosts');\n      this.transitionTo('blogPosts.recentEntries');\n      ```\n         Optionally supply a model for the route in question. The model\n      will be serialized into the URL using the `serialize` hook of\n      the route:\n         ```javascript\n      this.transitionTo('blogPost', aPost);\n      ```\n         If a literal is passed (such as a number or a string), it will\n      be treated as an identifier instead. In this case, the `model`\n      hook of the route will be triggered:\n         ```javascript\n      this.transitionTo('blogPost', 1);\n      ```\n         Multiple models will be applied last to first recursively up the\n      route tree.\n         ```app/routes.js\n      // ...\n         Router.map(function() {\n        this.route('blogPost', { path:':blogPostId' }, function() {\n          this.route('blogComment', { path: ':blogCommentId' });\n        });\n      });\n         export default Router;\n      ```\n         ```javascript\n      this.transitionTo('blogComment', aPost, aComment);\n      this.transitionTo('blogComment', 1, 13);\n      ```\n         It is also possible to pass a URL (a string that starts with a\n      `/`).\n         ```javascript\n      this.transitionTo('/');\n      this.transitionTo('/blog/post/1/comment/13');\n      this.transitionTo('/blog/posts?sort=title');\n      ```\n         An options hash with a `queryParams` property may be provided as\n      the final argument to add query parameters to the destination URL.\n         ```javascript\n      this.transitionTo('blogPost', 1, {\n        queryParams: { showComments: 'true' }\n      });\n         // if you just want to transition the query parameters without changing the route\n      this.transitionTo({ queryParams: { sort: 'date' } });\n      ```\n         See also [replaceWith](#method_replaceWith).\n         Simple Transition Example\n         ```app/routes.js\n      // ...\n         Router.map(function() {\n        this.route('index');\n        this.route('secret');\n        this.route('fourOhFour', { path: '*:' });\n      });\n         export default Router;\n      ```\n         ```app/routes/index.js\n      import Route from '@ember/routing/route';\n      import { action } from '@ember/object';\n         export default class IndexRoute extends Route {\n        @action\n        moveToSecret(context) {\n          if (authorized()) {\n            this.transitionTo('secret', context);\n          } else {\n            this.transitionTo('fourOhFour');\n          }\n        }\n      }\n      ```\n         Transition to a nested route\n         ```app/router.js\n      // ...\n         Router.map(function() {\n        this.route('articles', { path: '/articles' }, function() {\n          this.route('new');\n        });\n      });\n         export default Router;\n      ```\n         ```app/routes/index.js\n      import Route from '@ember/routing/route';\n      import { action } from '@ember/object';\n         export default class IndexRoute extends Route {\n        @action\n        transitionToNewArticle() {\n          this.transitionTo('articles.new');\n        }\n      }\n      ```\n         Multiple Models Example\n         ```app/router.js\n      // ...\n         Router.map(function() {\n        this.route('index');\n           this.route('breakfast', { path: ':breakfastId' }, function() {\n          this.route('cereal', { path: ':cerealId' });\n        });\n      });\n         export default Router;\n      ```\n         ```app/routes/index.js\n      import Route from '@ember/routing/route';\n      import { action } from '@ember/object';\n         export default class IndexRoute extends Route {\n        @action\n        moveToChocolateCereal() {\n          let cereal = { cerealId: 'ChocolateYumminess' };\n          let breakfast = { breakfastId: 'CerealAndMilk' };\n             this.transitionTo('breakfast.cereal', breakfast, cereal);\n        }\n      }\n      ```\n         Nested Route with Query String Example\n         ```app/routes.js\n      // ...\n         Router.map(function() {\n        this.route('fruits', function() {\n          this.route('apples');\n        });\n      });\n         export default Router;\n      ```\n         ```app/routes/index.js\n      import Route from '@ember/routing/route';\n         export default class IndexRoute extends Route {\n        @action\n        transitionToApples() {\n          this.transitionTo('fruits.apples', { queryParams: { color: 'red' } });\n        }\n      }\n      ```\n         @method transitionTo\n      @param {String} [name] the name of the route or a URL.\n      @param {...Object} [models] the model(s) or identifier(s) to be used while\n        transitioning to the route.\n      @param {Object} [options] optional hash with a queryParams property\n        containing a mapping of query parameters. May be supplied as the only\n        parameter to trigger a query-parameter-only transition.\n      @return {Transition} the transition object associated with this\n        attempted transition\n      @since 1.0.0\n      @public\n    */\n\n\n    transitionTo(...args) {\n      // eslint-disable-line no-unused-vars\n      return this._router.transitionTo(...(0, _utils2.prefixRouteNameArg)(this, args));\n    }\n    /**\n      Perform a synchronous transition into another route without attempting\n      to resolve promises, update the URL, or abort any currently active\n      asynchronous transitions (i.e. regular transitions caused by\n      `transitionTo` or URL changes).\n         This method is handy for performing intermediate transitions on the\n      way to a final destination route, and is called internally by the\n      default implementations of the `error` and `loading` handlers.\n         @method intermediateTransitionTo\n      @param {String} name the name of the route\n      @param {...Object} models the model(s) to be used while transitioning\n      to the route.\n      @since 1.2.0\n      @public\n     */\n\n\n    intermediateTransitionTo(...args) {\n      var [name, ...preparedArgs] = (0, _utils2.prefixRouteNameArg)(this, args);\n\n      this._router.intermediateTransitionTo(name, ...preparedArgs);\n    }\n    /**\n      Refresh the model on this route and any child routes, firing the\n      `beforeModel`, `model`, and `afterModel` hooks in a similar fashion\n      to how routes are entered when transitioning in from other route.\n      The current route params (e.g. `article_id`) will be passed in\n      to the respective model hooks, and if a different model is returned,\n      `setupController` and associated route hooks will re-fire as well.\n         An example usage of this method is re-querying the server for the\n      latest information using the same parameters as when the route\n      was first entered.\n         Note that this will cause `model` hooks to fire even on routes\n      that were provided a model object when the route was initially\n      entered.\n         @method refresh\n      @return {Transition} the transition object associated with this\n        attempted transition\n      @since 1.4.0\n      @public\n     */\n\n\n    refresh() {\n      return this._router._routerMicrolib.refresh(this);\n    }\n    /**\n      Transition into another route while replacing the current URL, if possible.\n      This will replace the current history entry instead of adding a new one.\n      Beside that, it is identical to `transitionTo` in all other respects. See\n      'transitionTo' for additional information regarding multiple models.\n         Example\n         ```app/router.js\n      // ...\n         Router.map(function() {\n        this.route('index');\n        this.route('secret');\n      });\n         export default Router;\n      ```\n         ```app/routes/secret.js\n      import Route from '@ember/routing/route';\n         export default class SecretRoute Route {\n        afterModel() {\n          if (!authorized()){\n            this.replaceWith('index');\n          }\n        }\n      }\n      ```\n         @method replaceWith\n      @param {String} name the name of the route or a URL\n      @param {...Object} models the model(s) or identifier(s) to be used while\n        transitioning to the route.\n      @param {Object} [options] optional hash with a queryParams property\n        containing a mapping of query parameters\n      @return {Transition} the transition object associated with this\n        attempted transition\n      @since 1.0.0\n      @public\n    */\n\n\n    replaceWith(...args) {\n      return this._router.replaceWith(...(0, _utils2.prefixRouteNameArg)(this, args));\n    }\n    /**\n      This hook is the entry point for router.js\n         @private\n      @method setup\n    */\n\n\n    setup(context, transition) {\n      var controllerName = this.controllerName || this.routeName;\n      var definedController = this.controllerFor(controllerName, true);\n      var controller;\n\n      if (definedController) {\n        controller = definedController;\n      } else {\n        controller = this.generateController(controllerName);\n      } // Assign the route's controller so that it can more easily be\n      // referenced in action handlers. Side effects. Side effects everywhere.\n\n\n      if (!this.controller) {\n        var qp = (0, _metal.get)(this, '_qp');\n        var propNames = qp !== undefined ? (0, _metal.get)(qp, 'propertyNames') : [];\n        addQueryParamsObservers(controller, propNames);\n        this.controller = controller;\n      }\n\n      var queryParams = (0, _metal.get)(this, '_qp');\n      var states = queryParams.states;\n      controller._qpDelegate = states.allowOverrides;\n\n      if (transition) {\n        // Update the model dep values used to calculate cache keys.\n        (0, _utils2.stashParamNames)(this._router, transition[_router_js.STATE_SYMBOL].routeInfos);\n        var cache = this._bucketCache;\n        var params = transition[_router_js.PARAMS_SYMBOL];\n        var allParams = queryParams.propertyNames;\n        allParams.forEach(prop => {\n          var aQp = queryParams.map[prop];\n          aQp.values = params;\n          var cacheKey = (0, _utils2.calculateCacheKey)(aQp.route.fullRouteName, aQp.parts, aQp.values);\n          var value = cache.lookup(cacheKey, prop, aQp.undecoratedDefaultValue);\n          (0, _metal.set)(controller, prop, value);\n        });\n        var qpValues = getQueryParamsFor(this, transition[_router_js.STATE_SYMBOL]);\n        (0, _metal.setProperties)(controller, qpValues);\n      }\n\n      this.setupController(controller, context, transition);\n\n      if (this._environment.options.shouldRender) {\n        this.renderTemplate(controller, context);\n      } // Setup can cause changes to QPs which need to be propogated immediately in\n      // some situations. Eventually, we should work on making these async somehow.\n\n\n      (0, _metal.flushAsyncObservers)(false);\n    }\n    /*\n      Called when a query parameter for this route changes, regardless of whether the route\n      is currently part of the active route hierarchy. This will update the query parameter's\n      value in the cache so if this route becomes active, the cache value has been updated.\n    */\n\n\n    _qpChanged(prop, value, qp) {\n      if (!qp) {\n        return;\n      } // Update model-dep cache\n\n\n      var cache = this._bucketCache;\n      var cacheKey = (0, _utils2.calculateCacheKey)(qp.route.fullRouteName, qp.parts, qp.values);\n      cache.stash(cacheKey, prop, value);\n    }\n    /**\n      This hook is the first of the route entry validation hooks\n      called when an attempt is made to transition into a route\n      or one of its children. It is called before `model` and\n      `afterModel`, and is appropriate for cases when:\n         1) A decision can be made to redirect elsewhere without\n         needing to resolve the model first.\n      2) Any async operations need to occur first before the\n         model is attempted to be resolved.\n         This hook is provided the current `transition` attempt\n      as a parameter, which can be used to `.abort()` the transition,\n      save it for a later `.retry()`, or retrieve values set\n      on it from a previous hook. You can also just call\n      `this.transitionTo` to another route to implicitly\n      abort the `transition`.\n         You can return a promise from this hook to pause the\n      transition until the promise resolves (or rejects). This could\n      be useful, for instance, for retrieving async code from\n      the server that is required to enter a route.\n         @method beforeModel\n      @param {Transition} transition\n      @return {any | Promise<any>} if the value returned from this hook is\n        a promise, the transition will pause until the transition\n        resolves. Otherwise, non-promise return values are not\n        utilized in any way.\n      @since 1.0.0\n      @public\n    */\n\n\n    beforeModel() {}\n    /**\n      This hook is called after this route's model has resolved.\n      It follows identical async/promise semantics to `beforeModel`\n      but is provided the route's resolved model in addition to\n      the `transition`, and is therefore suited to performing\n      logic that can only take place after the model has already\n      resolved.\n         ```app/routes/posts.js\n      import Route from '@ember/routing/route';\n         export default class PostsRoute extends Route {\n        afterModel(posts, transition) {\n          if (posts.get('length') === 1) {\n            this.transitionTo('post.show', posts.get('firstObject'));\n          }\n        }\n      }\n      ```\n         Refer to documentation for `beforeModel` for a description\n      of transition-pausing semantics when a promise is returned\n      from this hook.\n         @method afterModel\n      @param {Object} resolvedModel the value returned from `model`,\n        or its resolved value if it was a promise\n      @param {Transition} transition\n      @return {any | Promise<any>} if the value returned from this hook is\n        a promise, the transition will pause until the transition\n        resolves. Otherwise, non-promise return values are not\n        utilized in any way.\n      @since 1.0.0\n      @public\n     */\n\n\n    afterModel() {}\n    /**\n      A hook you can implement to optionally redirect to another route.\n         Calling `this.transitionTo` from inside of the `redirect` hook will\n      abort the current transition (into the route that has implemented `redirect`).\n         `redirect` and `afterModel` behave very similarly and are\n      called almost at the same time, but they have an important\n      distinction when calling `this.transitionTo` to a child route\n      of the current route. From `afterModel`, this new transition\n      invalidates the current transition, causing `beforeModel`,\n      `model`, and `afterModel` hooks to be called again. But the\n      same transition started from `redirect` does _not_ invalidate\n      the current transition. In other words, by the time the `redirect`\n      hook has been called, both the resolved model and the attempted\n      entry into this route are considered fully validated.\n         @method redirect\n      @param {Object} model the model for this route\n      @param {Transition} transition the transition object associated with the current transition\n      @since 1.0.0\n      @public\n    */\n\n\n    redirect() {}\n    /**\n      Called when the context is changed by router.js.\n         @private\n      @method contextDidChange\n    */\n\n\n    contextDidChange() {\n      this.currentModel = this.context;\n    }\n    /**\n      A hook you can implement to convert the URL into the model for\n      this route.\n         ```app/router.js\n      // ...\n         Router.map(function() {\n        this.route('post', { path: '/posts/:post_id' });\n      });\n         export default Router;\n      ```\n         The model for the `post` route is `store.findRecord('post', params.post_id)`.\n         By default, if your route has a dynamic segment ending in `_id`:\n         * The model class is determined from the segment (`post_id`'s\n        class is `App.Post`)\n      * The find method is called on the model class with the value of\n        the dynamic segment.\n         Note that for routes with dynamic segments, this hook is not always\n      executed. If the route is entered through a transition (e.g. when\n      using the `link-to` Handlebars helper or the `transitionTo` method\n      of routes), and a model context is already provided this hook\n      is not called.\n         A model context does not include a primitive string or number,\n      which does cause the model hook to be called.\n         Routes without dynamic segments will always execute the model hook.\n         ```javascript\n      // no dynamic segment, model hook always called\n      this.transitionTo('posts');\n         // model passed in, so model hook not called\n      thePost = store.findRecord('post', 1);\n      this.transitionTo('post', thePost);\n         // integer passed in, model hook is called\n      this.transitionTo('post', 1);\n         // model id passed in, model hook is called\n      // useful for forcing the hook to execute\n      thePost = store.findRecord('post', 1);\n      this.transitionTo('post', thePost.id);\n      ```\n         This hook follows the asynchronous/promise semantics\n      described in the documentation for `beforeModel`. In particular,\n      if a promise returned from `model` fails, the error will be\n      handled by the `error` hook on `Route`.\n         Example\n         ```app/routes/post.js\n      import Route from '@ember/routing/route';\n         export default class PostRoute extends Route {\n        model(params) {\n          return this.store.findRecord('post', params.post_id);\n        }\n      }\n      ```\n         @method model\n      @param {Object} params the parameters extracted from the URL\n      @param {Transition} transition\n      @return {any | Promise<any>} the model for this route. If\n        a promise is returned, the transition will pause until\n        the promise resolves, and the resolved value of the promise\n        will be used as the model for this route.\n      @since 1.0.0\n      @public\n    */\n\n\n    model(params, transition) {\n      var name, sawParams, value;\n      var queryParams = (0, _metal.get)(this, '_qp.map');\n\n      for (var prop in params) {\n        if (prop === 'queryParams' || queryParams && prop in queryParams) {\n          continue;\n        }\n\n        var match = prop.match(/^(.*)_id$/);\n\n        if (match !== null) {\n          name = match[1];\n          value = params[prop];\n        }\n\n        sawParams = true;\n      }\n\n      if (!name) {\n        if (sawParams) {\n          return (0, _polyfills.assign)({}, params);\n        } else {\n          if (transition.resolveIndex < 1) {\n            return;\n          }\n\n          return transition[_router_js.STATE_SYMBOL].routeInfos[transition.resolveIndex - 1].context;\n        }\n      }\n\n      return this.findModel(name, value);\n    }\n    /**\n      @private\n      @method deserialize\n      @param {Object} params the parameters extracted from the URL\n      @param {Transition} transition\n      @return {any | Promise<any>} the model for this route.\n         Router.js hook.\n     */\n\n\n    deserialize(_params, transition) {\n      return this.model(this._paramsFor(this.routeName, _params), transition);\n    }\n    /**\n         @method findModel\n      @param {String} type the model type\n      @param {Object} value the value passed to find\n      @private\n    */\n\n\n    findModel(...args) {\n      return (0, _metal.get)(this, 'store').find(...args);\n    }\n    /**\n      A hook you can use to setup the controller for the current route.\n         This method is called with the controller for the current route and the\n      model supplied by the `model` hook.\n         By default, the `setupController` hook sets the `model` property of\n      the controller to the specified `model` when it is not `undefined`.\n         If you implement the `setupController` hook in your Route, it will\n      prevent this default behavior. If you want to preserve that behavior\n      when implementing your `setupController` function, make sure to call\n      `super`:\n         ```app/routes/photos.js\n      import Route from '@ember/routing/route';\n         export default class PhotosRoute extends Route {\n        model() {\n          return this.store.findAll('photo');\n        }\n           setupController(controller, model) {\n          super.setupController(controller, model);\n             this.controllerFor('application').set('showingPhotos', true);\n        }\n      }\n      ```\n         The provided controller will be one resolved based on the name\n      of this route.\n         If no explicit controller is defined, Ember will automatically create one.\n         As an example, consider the router:\n         ```app/router.js\n      // ...\n         Router.map(function() {\n        this.route('post', { path: '/posts/:post_id' });\n      });\n         export default Router;\n      ```\n         If you have defined a file for the post controller,\n      the framework will use it.\n      If it is not defined, a basic `Controller` instance would be used.\n         @example Behavior of a basic Controller\n         ```app/routes/post.js\n      import Route from '@ember/routing/route';\n         export default class PostRoute extends Route {\n        setupController(controller, model) {\n          controller.set('model', model);\n        }\n      });\n      ```\n         @method setupController\n      @param {Controller} controller instance\n      @param {Object} model\n      @param {Object} transition\n      @since 1.0.0\n      @public\n    */\n\n\n    setupController(controller, context, _transition) {\n      // eslint-disable-line no-unused-vars\n      if (controller && context !== undefined) {\n        (0, _metal.set)(controller, 'model', context);\n      }\n    }\n    /**\n      Returns the controller of the current route, or a parent (or any ancestor)\n      route in a route hierarchy.\n         The controller instance must already have been created, either through entering the\n      associated route or using `generateController`.\n         ```app/routes/post.js\n      import Route from '@ember/routing/route';\n         export default class PostRoute extends Route {\n        setupController(controller, post) {\n          super.setupController(controller, post);\n             this.controllerFor('posts').set('currentPost', post);\n        }\n      }\n      ```\n         @method controllerFor\n      @param {String} name the name of the route or controller\n      @return {Controller}\n      @since 1.0.0\n      @public\n    */\n\n\n    controllerFor(name, _skipAssert) {\n      var owner = (0, _owner.getOwner)(this);\n      var route = owner.lookup(`route:${name}`);\n\n      if (route && route.controllerName) {\n        name = route.controllerName;\n      }\n\n      var controller = owner.lookup(`controller:${name}`); // NOTE: We're specifically checking that skipAssert is true, because according\n      //   to the old API the second parameter was model. We do not want people who\n      //   passed a model to skip the assertion.\n\n      (true && !(controller !== undefined || _skipAssert === true) && (0, _debug.assert)(`The controller named '${name}' could not be found. Make sure that this route exists and has already been entered at least once. If you are accessing a controller not associated with a route, make sure the controller class is explicitly defined.`, controller !== undefined || _skipAssert === true));\n      return controller;\n    }\n    /**\n      Generates a controller for a route.\n         Example\n         ```app/routes/post.js\n      import Route from '@ember/routing/route';\n         export default class Post extends Route {\n        setupController(controller, post) {\n          super.setupController(controller, post);\n             this.generateController('posts');\n        }\n      }\n      ```\n         @method generateController\n      @param {String} name the name of the controller\n      @private\n    */\n\n\n    generateController(name) {\n      var owner = (0, _owner.getOwner)(this);\n      return (0, _generate_controller.default)(owner, name);\n    }\n    /**\n      Returns the resolved model of a parent (or any ancestor) route\n      in a route hierarchy.  During a transition, all routes\n      must resolve a model object, and if a route\n      needs access to a parent route's model in order to\n      resolve a model (or just reuse the model from a parent),\n      it can call `this.modelFor(theNameOfParentRoute)` to\n      retrieve it. If the ancestor route's model was a promise,\n      its resolved result is returned.\n         Example\n         ```app/router.js\n      // ...\n         Router.map(function() {\n        this.route('post', { path: '/posts/:post_id' }, function() {\n          this.route('comments');\n        });\n      });\n         export default Router;\n      ```\n         ```app/routes/post/comments.js\n      import Route from '@ember/routing/route';\n         export default class PostCommentsRoute extends Route {\n        model() {\n          let post = this.modelFor('post');\n             return post.comments;\n        }\n      }\n      ```\n         @method modelFor\n      @param {String} name the name of the route\n      @return {Object} the model object\n      @since 1.0.0\n      @public\n    */\n\n\n    modelFor(_name) {\n      var name;\n      var owner = (0, _owner.getOwner)(this);\n      var transition = this._router && this._router._routerMicrolib ? this._router._routerMicrolib.activeTransition : undefined; // Only change the route name when there is an active transition.\n      // Otherwise, use the passed in route name.\n\n      if (owner.routable && transition !== undefined) {\n        name = getEngineRouteName(owner, _name);\n      } else {\n        name = _name;\n      }\n\n      var route = owner.lookup(`route:${name}`); // If we are mid-transition, we want to try and look up\n      // resolved parent contexts on the current transitionEvent.\n\n      if (transition !== undefined && transition !== null) {\n        var modelLookupName = route && route.routeName || name;\n\n        if (transition.resolvedModels.hasOwnProperty(modelLookupName)) {\n          return transition.resolvedModels[modelLookupName];\n        }\n      }\n\n      return route && route.currentModel;\n    }\n    /**\n      A hook you can use to render the template for the current route.\n         This method is called with the controller for the current route and the\n      model supplied by the `model` hook. By default, it renders the route's\n      template, configured with the controller for the route.\n         This method can be overridden to set up and render additional or\n      alternative templates.\n         ```app/routes/posts.js\n      import Route from '@ember/routing/route';\n         export default class PostsRoute extends Route {\n        renderTemplate(controller, model) {\n          let favController = this.controllerFor('favoritePost');\n             // Render the `favoritePost` template into\n          // the outlet `posts`, and display the `favoritePost`\n          // controller.\n          this.render('favoritePost', {\n            outlet: 'posts',\n            controller: favController\n          });\n        }\n      }\n      ```\n         @method renderTemplate\n      @param {Object} controller the route's controller\n      @param {Object} model the route's model\n      @since 1.0.0\n      @public\n    */\n\n\n    renderTemplate(_controller, _model) {\n      // eslint-disable-line no-unused-vars\n      this.render();\n    }\n    /**\n      `render` is used to render a template into a region of another template\n      (indicated by an `{{outlet}}`). `render` is used both during the entry\n      phase of routing (via the `renderTemplate` hook) and later in response to\n      user interaction.\n         For example, given the following minimal router and templates:\n         ```app/router.js\n      // ...\n         Router.map(function() {\n        this.route('photos');\n      });\n         export default Router;\n      ```\n         ```handlebars\n      <!-- application.hbs -->\n      <div class='something-in-the-app-hbs'>\n        {{outlet \"anOutletName\"}}\n      </div>\n      ```\n         ```handlebars\n      <!-- photos.hbs -->\n      <h1>Photos</h1>\n      ```\n         You can render `photos.hbs` into the `\"anOutletName\"` outlet of\n      `application.hbs` by calling `render`:\n         ```app/routes/post.js\n      import Route from '@ember/routing/route';\n         export default class PostRoute extends Route {\n        renderTemplate() {\n          this.render('photos', {\n            into: 'application',\n            outlet: 'anOutletName'\n          })\n        }\n      }\n      ```\n         `render` additionally allows you to supply which `controller` and\n      `model` objects should be loaded and associated with the rendered template.\n         ```app/routes/posts.js\n      import Route from '@ember/routing/route';\n         export default class PostsRoute extends Route {\n        renderTemplate(controller, model){\n          this.render('posts', {    // the template to render, referenced by name\n            into: 'application',    // the template to render into, referenced by name\n            outlet: 'anOutletName', // the outlet inside `options.into` to render into.\n            controller: 'someControllerName', // the controller to use for this template, referenced by name\n            model: model            // the model to set on `options.controller`.\n          })\n        }\n      }\n      ```\n         The string values provided for the template name, and controller\n      will eventually pass through to the resolver for lookup. See\n      Resolver for how these are mapped to JavaScript objects in your\n      application. The template to render into needs to be related to  either the\n      current route or one of its ancestors.\n         Not all options need to be passed to `render`. Default values will be used\n      based on the name of the route specified in the router or the Route's\n      `controllerName` and `templateName` properties.\n         For example:\n         ```app/router.js\n      // ...\n         Router.map(function() {\n        this.route('index');\n        this.route('post', { path: '/posts/:post_id' });\n      });\n         export default Router;\n      ```\n         ```app/routes/post.js\n      import Route from '@ember/routing/route';\n         export default class PostRoute extends Route {\n        renderTemplate() {\n          this.render(); // all defaults apply\n        }\n      }\n      ```\n         The name of the route, defined by the router, is `post`.\n         The following equivalent default options will be applied when\n      the Route calls `render`:\n         ```javascript\n      this.render('post', {  // the template name associated with 'post' Route\n        into: 'application', // the parent route to 'post' Route\n        outlet: 'main',      // {{outlet}} and {{outlet 'main'}} are synonymous,\n        controller: 'post',  // the controller associated with the 'post' Route\n      })\n      ```\n         By default the controller's `model` will be the route's model, so it does not\n      need to be passed unless you wish to change which model is being used.\n         @method render\n      @param {String} name the name of the template to render\n      @param {Object} [options] the options\n      @param {String} [options.into] the template to render into,\n                      referenced by name. Defaults to the parent template\n      @param {String} [options.outlet] the outlet inside `options.into` to render into.\n                      Defaults to 'main'\n      @param {String|Object} [options.controller] the controller to use for this template,\n                      referenced by name or as a controller instance. Defaults to the Route's paired controller\n      @param {Object} [options.model] the model object to set on `options.controller`.\n                      Defaults to the return value of the Route's model hook\n      @since 1.0.0\n      @public\n    */\n\n\n    render(_name, options) {\n      var name;\n      var isDefaultRender = arguments.length === 0;\n\n      if (!isDefaultRender) {\n        if (typeof _name === 'object' && !options) {\n          name = this.templateName || this.routeName;\n          options = _name;\n        } else {\n          (true && !(!(0, _metal.isEmpty)(_name)) && (0, _debug.assert)('The name in the given arguments is undefined or empty string', !(0, _metal.isEmpty)(_name)));\n          name = _name;\n        }\n      }\n\n      var renderOptions = buildRenderOptions(this, isDefaultRender, name, options);\n      ROUTE_CONNECTIONS.get(this).push(renderOptions);\n      (0, _runloop.once)(this._router, '_setOutlets');\n    }\n    /**\n      Disconnects a view that has been rendered into an outlet.\n         You may pass any or all of the following options to `disconnectOutlet`:\n         * `outlet`: the name of the outlet to clear (default: 'main')\n      * `parentView`: the name of the view containing the outlet to clear\n         (default: the view rendered by the parent route)\n         Example:\n         ```app/routes/application.js\n      import Route from '@ember/routing/route';\n      import { action } from '@ember/object';\n         export default class ApplicationRoute extends Route {\n        @action\n        showModal(evt) {\n          this.render(evt.modalName, {\n            outlet: 'modal',\n            into: 'application'\n          });\n        }\n           @action\n        hideModal() {\n          this.disconnectOutlet({\n            outlet: 'modal',\n            parentView: 'application'\n          });\n        }\n      }\n      ```\n         Alternatively, you can pass the `outlet` name directly as a string.\n         Example:\n         ```app/routes/application.js\n      import Route from '@ember/routing/route';\n      import { action } from '@ember/object';\n         export default class ApplicationRoute extends Route {\n        @action\n        showModal(evt) {\n          // ...\n        }\n           @action\n        hideModal(evt) {\n          this.disconnectOutlet('modal');\n        }\n      }\n      ```\n         @method disconnectOutlet\n      @param {Object|String} options the options hash or outlet name\n      @since 1.0.0\n      @public\n    */\n\n\n    disconnectOutlet(options) {\n      var outletName;\n      var parentView;\n\n      if (options) {\n        if (typeof options === 'string') {\n          outletName = options;\n        } else {\n          outletName = options.outlet;\n          parentView = options.parentView ? options.parentView.replace(/\\//g, '.') : undefined;\n          (true && !(!('outlet' in options && options.outlet === undefined)) && (0, _debug.assert)('You passed undefined as the outlet name.', !('outlet' in options && options.outlet === undefined)));\n        }\n      }\n\n      outletName = outletName || 'main';\n\n      this._disconnectOutlet(outletName, parentView);\n\n      var routeInfos = this._router._routerMicrolib.currentRouteInfos;\n\n      for (var i = 0; i < routeInfos.length; i++) {\n        // This non-local state munging is sadly necessary to maintain\n        // backward compatibility with our existing semantics, which allow\n        // any route to disconnectOutlet things originally rendered by any\n        // other route. This should all get cut in 2.0.\n        routeInfos[i].route._disconnectOutlet(outletName, parentView);\n      }\n    }\n\n    _disconnectOutlet(outletName, parentView) {\n      var parent = parentRoute(this);\n\n      if (parent && parentView === parent.routeName) {\n        parentView = undefined;\n      }\n\n      var connections = ROUTE_CONNECTIONS.get(this);\n\n      for (var i = 0; i < connections.length; i++) {\n        var connection = connections[i];\n\n        if (connection.outlet === outletName && connection.into === parentView) {\n          // This neuters the disconnected outlet such that it doesn't\n          // render anything, but it leaves an entry in the outlet\n          // hierarchy so that any existing other renders that target it\n          // don't suddenly blow up. They will still stick themselves\n          // into its outlets, which won't render anywhere. All of this\n          // statefulness should get the machete in 2.0.\n          connections[i] = {\n            owner: connection.owner,\n            into: connection.into,\n            outlet: connection.outlet,\n            name: connection.name,\n            controller: undefined,\n            template: undefined,\n            model: undefined\n          };\n          (0, _runloop.once)(this._router, '_setOutlets');\n        }\n      }\n\n      ROUTE_CONNECTIONS.set(this, connections);\n    }\n\n    willDestroy() {\n      this.teardownViews();\n    }\n    /**\n      @private\n         @method teardownViews\n    */\n\n\n    teardownViews() {\n      var connections = ROUTE_CONNECTIONS.get(this);\n\n      if (connections !== undefined && connections.length > 0) {\n        ROUTE_CONNECTIONS.set(this, []);\n        (0, _runloop.once)(this._router, '_setOutlets');\n      }\n    }\n    /**\n      Allows you to produce custom metadata for the route.\n      The return value of this method will be attatched to\n      its corresponding RouteInfoWithAttributes obejct.\n         Example\n         ```app/routes/posts/index.js\n      import Route from '@ember/routing/route';\n         export default class PostsIndexRoute extends Route {\n        buildRouteInfoMetadata() {\n          return { title: 'Posts Page' }\n        }\n      }\n      ```\n         ```app/routes/application.js\n      import Route from '@ember/routing/route';\n      import { inject as service } from '@ember/service';\n         export default class ApplicationRoute extends Route {\n        @service router\n           constructor() {\n          super(...arguments);\n             this.router.on('routeDidChange', transition => {\n            document.title = transition.to.metadata.title;\n            // would update document's title to \"Posts Page\"\n          });\n        }\n      }\n      ```\n      @method buildRouteInfoMetadata\n      @return any\n      @since 3.10.0\n      @public\n     */\n\n\n    buildRouteInfoMetadata() {}\n\n  }\n\n  Route.reopenClass({\n    isRouteFactory: true\n  });\n\n  function parentRoute(route) {\n    var routeInfo = routeInfoFor(route, route._router._routerMicrolib.state.routeInfos, -1);\n    return routeInfo && routeInfo.route;\n  }\n\n  function routeInfoFor(route, routeInfos, offset = 0) {\n    if (!routeInfos) {\n      return;\n    }\n\n    var current;\n\n    for (var i = 0; i < routeInfos.length; i++) {\n      current = routeInfos[i].route;\n\n      if (current === route) {\n        return routeInfos[i + offset];\n      }\n    }\n\n    return;\n  }\n\n  function buildRenderOptions(route, isDefaultRender, _name, options) {\n    (true && !(isDefaultRender || !(options && 'outlet' in options && options.outlet === undefined)) && (0, _debug.assert)('You passed undefined as the outlet name.', isDefaultRender || !(options && 'outlet' in options && options.outlet === undefined)));\n    var owner = (0, _owner.getOwner)(route);\n    var name, templateName, into, outlet, model;\n    var controller = undefined;\n\n    if (options) {\n      into = options.into && options.into.replace(/\\//g, '.');\n      outlet = options.outlet;\n      controller = options.controller;\n      model = options.model;\n    }\n\n    outlet = outlet || 'main';\n\n    if (isDefaultRender) {\n      name = route.routeName;\n      templateName = route.templateName || name;\n    } else {\n      name = _name.replace(/\\//g, '.');\n      templateName = name;\n    }\n\n    if (controller === undefined) {\n      if (isDefaultRender) {\n        controller = route.controllerName || owner.lookup(`controller:${name}`);\n      } else {\n        controller = owner.lookup(`controller:${name}`) || route.controllerName || route.routeName;\n      }\n    }\n\n    if (typeof controller === 'string') {\n      var controllerName = controller;\n      controller = owner.lookup(`controller:${controllerName}`);\n      (true && !(isDefaultRender || controller !== undefined) && (0, _debug.assert)(`You passed \\`controller: '${controllerName}'\\` into the \\`render\\` method, but no such controller could be found.`, isDefaultRender || controller !== undefined));\n    }\n\n    if (model === undefined) {\n      model = route.currentModel;\n    } else {\n      controller.set('model', model);\n    }\n\n    var template = owner.lookup(`template:${templateName}`);\n    (true && !(isDefaultRender || template !== undefined) && (0, _debug.assert)(`Could not find \"${templateName}\" template, view, or component.`, isDefaultRender || template !== undefined));\n    var parent;\n\n    if (into && (parent = parentRoute(route)) && into === parent.routeName) {\n      into = undefined;\n    }\n\n    var renderOptions = {\n      owner,\n      into,\n      outlet,\n      name,\n      controller,\n      model,\n      template: template !== undefined ? template(owner) : route._topLevelViewTemplate(owner)\n    };\n\n    if (true\n    /* DEBUG */\n    ) {\n      var LOG_VIEW_LOOKUPS = (0, _metal.get)(route._router, 'namespace.LOG_VIEW_LOOKUPS');\n\n      if (LOG_VIEW_LOOKUPS && !template) {\n        (0, _debug.info)(`Could not find \"${name}\" template. Nothing will be rendered`, {\n          fullName: `template:${name}`\n        });\n      }\n    }\n\n    return renderOptions;\n  }\n\n  function getFullQueryParams(router, state) {\n    if (state['fullQueryParams']) {\n      return state['fullQueryParams'];\n    }\n\n    state['fullQueryParams'] = {};\n    (0, _polyfills.assign)(state['fullQueryParams'], state.queryParams);\n\n    router._deserializeQueryParams(state.routeInfos, state['fullQueryParams']);\n\n    return state['fullQueryParams'];\n  }\n\n  function getQueryParamsFor(route, state) {\n    state['queryParamsFor'] = state['queryParamsFor'] || {};\n    var name = route.fullRouteName;\n\n    if (state['queryParamsFor'][name]) {\n      return state['queryParamsFor'][name];\n    }\n\n    var fullQueryParams = getFullQueryParams(route._router, state);\n    var params = state['queryParamsFor'][name] = {}; // Copy over all the query params for this route/controller into params hash.\n\n    var qps = (0, _metal.get)(route, '_qp.qps');\n\n    for (var i = 0; i < qps.length; ++i) {\n      // Put deserialized qp on params hash.\n      var qp = qps[i];\n      var qpValueWasPassedIn = (qp.prop in fullQueryParams);\n      params[qp.prop] = qpValueWasPassedIn ? fullQueryParams[qp.prop] : copyDefaultValue(qp.defaultValue);\n    }\n\n    return params;\n  }\n\n  function copyDefaultValue(value) {\n    if (Array.isArray(value)) {\n      return (0, _runtime.A)(value.slice());\n    }\n\n    return value;\n  }\n  /*\n    Merges all query parameters from a controller with those from\n    a route, returning a new object and avoiding any mutations to\n    the existing objects.\n  */\n\n\n  function mergeEachQueryParams(controllerQP, routeQP) {\n    var qps = {};\n    var keysAlreadyMergedOrSkippable = {\n      defaultValue: true,\n      type: true,\n      scope: true,\n      as: true\n    }; // first loop over all controller qps, merging them with any matching route qps\n    // into a new empty object to avoid mutating.\n\n    for (var cqpName in controllerQP) {\n      if (!controllerQP.hasOwnProperty(cqpName)) {\n        continue;\n      }\n\n      var newControllerParameterConfiguration = {};\n      (0, _polyfills.assign)(newControllerParameterConfiguration, controllerQP[cqpName], routeQP[cqpName]);\n      qps[cqpName] = newControllerParameterConfiguration; // allows us to skip this QP when we check route QPs.\n\n      keysAlreadyMergedOrSkippable[cqpName] = true;\n    } // loop over all route qps, skipping those that were merged in the first pass\n    // because they also appear in controller qps\n\n\n    for (var rqpName in routeQP) {\n      if (!routeQP.hasOwnProperty(rqpName) || keysAlreadyMergedOrSkippable[rqpName]) {\n        continue;\n      }\n\n      var newRouteParameterConfiguration = {};\n      (0, _polyfills.assign)(newRouteParameterConfiguration, routeQP[rqpName], controllerQP[rqpName]);\n      qps[rqpName] = newRouteParameterConfiguration;\n    }\n\n    return qps;\n  }\n\n  function addQueryParamsObservers(controller, propNames) {\n    propNames.forEach(prop => {\n      if ((0, _metal.descriptorForProperty)(controller, prop) === undefined) {\n        var desc = (0, _utils.lookupDescriptor)(controller, prop);\n\n        if (desc !== null && (typeof desc.get === 'function' || typeof desc.set === 'function')) {\n          (0, _metal.defineProperty)(controller, prop, (0, _compat.dependentKeyCompat)({\n            get: desc.get,\n            set: desc.set\n          }));\n        }\n      }\n\n      (0, _metal.addObserver)(controller, `${prop}.[]`, controller, controller._qpChanged, false);\n    });\n  }\n\n  function getEngineRouteName(engine, routeName) {\n    if (engine.routable) {\n      var prefix = engine.mountPoint;\n\n      if (routeName === 'application') {\n        return prefix;\n      } else {\n        return `${prefix}.${routeName}`;\n      }\n    }\n\n    return routeName;\n  }\n  /**\n      A hook you can implement to convert the route's model into parameters\n      for the URL.\n  \n      ```app/router.js\n      // ...\n  \n      Router.map(function() {\n        this.route('post', { path: '/posts/:post_id' });\n      });\n  \n      ```\n  \n      ```app/routes/post.js\n      import Route from '@ember/routing/route';\n  \n      export default class PostRoute extends Route {\n        model({ post_id }) {\n          // the server returns `{ id: 12 }`\n          return fetch(`/posts/${post_id}`;\n        }\n  \n        serialize(model) {\n          // this will make the URL `/posts/12`\n          return { post_id: model.id };\n        }\n      }\n      ```\n  \n      The default `serialize` method will insert the model's `id` into the\n      route's dynamic segment (in this case, `:post_id`) if the segment contains '_id'.\n      If the route has multiple dynamic segments or does not contain '_id', `serialize`\n      will return `getProperties(model, params)`\n  \n      This method is called when `transitionTo` is called with a context\n      in order to populate the URL.\n  \n      @method serialize\n      @param {Object} model the routes model\n      @param {Array} params an Array of parameter names for the current\n        route (in the example, `['post_id']`.\n      @return {Object} the serialized parameters\n      @since 1.0.0\n      @public\n    */\n\n\n  Route.prototype.serialize = defaultSerialize;\n  Route.reopen(_runtime.ActionHandler, _runtime.Evented, {\n    mergedProperties: ['queryParams'],\n\n    /**\n      Configuration hash for this route's queryParams. The possible\n      configuration options and their defaults are as follows\n      (assuming a query param whose controller property is `page`):\n         ```javascript\n      queryParams: {\n        page: {\n          // By default, controller query param properties don't\n          // cause a full transition when they are changed, but\n          // rather only cause the URL to update. Setting\n          // `refreshModel` to true will cause an \"in-place\"\n          // transition to occur, whereby the model hooks for\n          // this route (and any child routes) will re-fire, allowing\n          // you to reload models (e.g., from the server) using the\n          // updated query param values.\n          refreshModel: false,\n             // By default, changes to controller query param properties\n          // cause the URL to update via `pushState`, which means an\n          // item will be added to the browser's history, allowing\n          // you to use the back button to restore the app to the\n          // previous state before the query param property was changed.\n          // Setting `replace` to true will use `replaceState` (or its\n          // hash location equivalent), which causes no browser history\n          // item to be added. This options name and default value are\n          // the same as the `link-to` helper's `replace` option.\n          replace: false,\n             // By default, the query param URL key is the same name as\n          // the controller property name. Use `as` to specify a\n          // different URL key.\n          as: 'page'\n        }\n      }\n      ```\n         @property queryParams\n      @for Route\n      @type Object\n      @since 1.6.0\n      @public\n    */\n    queryParams: {},\n\n    /**\n      The name of the template to use by default when rendering this routes\n      template.\n         ```app/routes/posts/list.js\n      import Route from '@ember/routing/route';\n         export default class extends Route {\n        templateName = 'posts/list'\n      });\n      ```\n         ```app/routes/posts/index.js\n      import PostsList from '../posts/list';\n         export default class extends PostsList {};\n      ```\n         ```app/routes/posts/archived.js\n      import PostsList from '../posts/list';\n         export default class extends PostsList {};\n      ```\n         @property templateName\n      @type String\n      @default null\n      @since 1.4.0\n      @public\n    */\n    templateName: null,\n\n    /**\n      @private\n         @property _names\n    */\n    _names: null,\n\n    /**\n      The name of the controller to associate with this route.\n         By default, Ember will lookup a route's controller that matches the name\n      of the route (i.e. `posts.new`). However,\n      if you would like to define a specific controller to use, you can do so\n      using this property.\n         This is useful in many ways, as the controller specified will be:\n         * passed to the `setupController` method.\n      * used as the controller for the template being rendered by the route.\n      * returned from a call to `controllerFor` for the route.\n         @property controllerName\n      @type String\n      @default null\n      @since 1.4.0\n      @public\n    */\n    controllerName: null,\n\n    /**\n      Store property provides a hook for data persistence libraries to inject themselves.\n         By default, this store property provides the exact same functionality previously\n      in the model hook.\n         Currently, the required interface is:\n         `store.find(modelName, findArguments)`\n         @property store\n      @type {Object}\n      @private\n    */\n    store: (0, _metal.computed)({\n      get() {\n        var owner = (0, _owner.getOwner)(this);\n        var routeName = this.routeName;\n        var namespace = (0, _metal.get)(this, '_router.namespace');\n        return {\n          find(name, value) {\n            var modelClass = owner.factoryFor(`model:${name}`);\n            (true && !(Boolean(modelClass)) && (0, _debug.assert)(`You used the dynamic segment ${name}_id in your route ${routeName}, but ${namespace}.${(0, _string.classify)(name)} did not exist and you did not override your route's \\`model\\` hook.`, Boolean(modelClass)));\n\n            if (!modelClass) {\n              return;\n            }\n\n            modelClass = modelClass.class;\n            (true && !(typeof modelClass.find === 'function') && (0, _debug.assert)(`${(0, _string.classify)(name)} has no method \\`find\\`.`, typeof modelClass.find === 'function'));\n            return modelClass.find(value);\n          }\n\n        };\n      },\n\n      set(key, value) {\n        (0, _metal.defineProperty)(this, key, null, value);\n      }\n\n    }),\n\n    /**\n        @private\n           @property _qp\n      */\n    _qp: (0, _metal.computed)(function () {\n      var combinedQueryParameterConfiguration;\n      var controllerName = this.controllerName || this.routeName;\n      var owner = (0, _owner.getOwner)(this);\n      var controller = owner.lookup(`controller:${controllerName}`);\n      var queryParameterConfiguraton = (0, _metal.get)(this, 'queryParams');\n      var hasRouterDefinedQueryParams = Object.keys(queryParameterConfiguraton).length > 0;\n\n      if (controller) {\n        // the developer has authored a controller class in their application for\n        // this route find its query params and normalize their object shape them\n        // merge in the query params for the route. As a mergedProperty,\n        // Route#queryParams is always at least `{}`\n        var controllerDefinedQueryParameterConfiguration = (0, _metal.get)(controller, 'queryParams') || {};\n        var normalizedControllerQueryParameterConfiguration = (0, _utils2.normalizeControllerQueryParams)(controllerDefinedQueryParameterConfiguration);\n        combinedQueryParameterConfiguration = mergeEachQueryParams(normalizedControllerQueryParameterConfiguration, queryParameterConfiguraton);\n      } else if (hasRouterDefinedQueryParams) {\n        // the developer has not defined a controller but *has* supplied route query params.\n        // Generate a class for them so we can later insert default values\n        controller = (0, _generate_controller.default)(owner, controllerName);\n        combinedQueryParameterConfiguration = queryParameterConfiguraton;\n      }\n\n      var qps = [];\n      var map = {};\n      var propertyNames = [];\n\n      for (var propName in combinedQueryParameterConfiguration) {\n        if (!combinedQueryParameterConfiguration.hasOwnProperty(propName)) {\n          continue;\n        } // to support the dubious feature of using unknownProperty\n        // on queryParams configuration\n\n\n        if (propName === 'unknownProperty' || propName === '_super') {\n          // possible todo: issue deprecation warning?\n          continue;\n        }\n\n        var desc = combinedQueryParameterConfiguration[propName];\n        var scope = desc.scope || 'model';\n        var parts = void 0;\n\n        if (scope === 'controller') {\n          parts = [];\n        }\n\n        var urlKey = desc.as || this.serializeQueryParamKey(propName);\n        var defaultValue = (0, _metal.get)(controller, propName);\n        defaultValue = copyDefaultValue(defaultValue);\n        var type = desc.type || (0, _runtime.typeOf)(defaultValue);\n        var defaultValueSerialized = this.serializeQueryParam(defaultValue, urlKey, type);\n        var scopedPropertyName = `${controllerName}:${propName}`;\n        var qp = {\n          undecoratedDefaultValue: (0, _metal.get)(controller, propName),\n          defaultValue,\n          serializedDefaultValue: defaultValueSerialized,\n          serializedValue: defaultValueSerialized,\n          type,\n          urlKey,\n          prop: propName,\n          scopedPropertyName,\n          controllerName,\n          route: this,\n          parts,\n          values: null,\n          scope\n        };\n        map[propName] = map[urlKey] = map[scopedPropertyName] = qp;\n        qps.push(qp);\n        propertyNames.push(propName);\n      }\n\n      return {\n        qps,\n        map,\n        propertyNames,\n        states: {\n          /*\n            Called when a query parameter changes in the URL, this route cares\n            about that query parameter, but the route is not currently\n            in the active route hierarchy.\n          */\n          inactive: (prop, value) => {\n            var qp = map[prop];\n\n            this._qpChanged(prop, value, qp);\n          },\n\n          /*\n            Called when a query parameter changes in the URL, this route cares\n            about that query parameter, and the route is currently\n            in the active route hierarchy.\n          */\n          active: (prop, value) => {\n            var qp = map[prop];\n\n            this._qpChanged(prop, value, qp);\n\n            return this._activeQPChanged(qp, value);\n          },\n\n          /*\n            Called when a value of a query parameter this route handles changes in a controller\n            and the route is currently in the active route hierarchy.\n          */\n          allowOverrides: (prop, value) => {\n            var qp = map[prop];\n\n            this._qpChanged(prop, value, qp);\n\n            return this._updatingQPChanged(qp);\n          }\n        }\n      };\n    }),\n\n    /**\n      Sends an action to the router, which will delegate it to the currently\n      active route hierarchy per the bubbling rules explained under `actions`.\n         Example\n         ```app/router.js\n      // ...\n         Router.map(function() {\n        this.route('index');\n      });\n         export default Router;\n      ```\n         ```app/routes/application.js\n      import Route from '@ember/routing/route';\n      import { action } from '@ember/object';\n         export default class ApplicationRoute extends Route {\n        @action\n        track(arg) {\n          console.log(arg, 'was clicked');\n        }\n      }\n      ```\n         ```app/routes/index.js\n      import Route from '@ember/routing/route';\n      import { action } from '@glimmer/tracking';\n         export default class IndexRoute extends Route {\n        @action\n        trackIfDebug(arg) {\n          if (debug) {\n            this.send('track', arg);\n          }\n        }\n      }\n      ```\n         @method send\n      @param {String} name the name of the action to trigger\n      @param {...*} args\n      @since 1.0.0\n      @public\n    */\n    send(...args) {\n      (true && !(!this.isDestroying && !this.isDestroyed) && (0, _debug.assert)(`Attempted to call .send() with the action '${args[0]}' on the destroyed route '${this.routeName}'.`, !this.isDestroying && !this.isDestroyed));\n\n      if (this._router && this._router._routerMicrolib || !(0, _debug.isTesting)()) {\n        this._router.send(...args);\n      } else {\n        var name = args.shift();\n        var action = this.actions[name];\n\n        if (action) {\n          return action.apply(this, args);\n        }\n      }\n    },\n\n    /**\n      The controller associated with this route.\n         Example\n         ```app/routes/form.js\n      import Route from '@ember/routing/route';\n      import { action } from '@ember/object';\n         export default class FormRoute extends Route {\n        @action\n        willTransition(transition) {\n          if (this.controller.get('userHasEnteredData') &&\n              !confirm('Are you sure you want to abandon progress?')) {\n            transition.abort();\n          } else {\n            // Bubble the `willTransition` action so that\n            // parent routes can decide whether or not to abort.\n            return true;\n          }\n        }\n      }\n      ```\n         @property controller\n      @type Controller\n      @since 1.6.0\n      @public\n    */\n    actions: {\n      /**\n      This action is called when one or more query params have changed. Bubbles.\n           @method queryParamsDidChange\n      @param changed {Object} Keys are names of query params that have changed.\n      @param totalPresent {Object} Keys are names of query params that are currently set.\n      @param removed {Object} Keys are names of query params that have been removed.\n      @returns {boolean}\n      @private\n      */\n      queryParamsDidChange(changed, _totalPresent, removed) {\n        var qpMap = (0, _metal.get)(this, '_qp').map;\n        var totalChanged = Object.keys(changed).concat(Object.keys(removed));\n\n        for (var i = 0; i < totalChanged.length; ++i) {\n          var qp = qpMap[totalChanged[i]];\n\n          if (qp && (0, _metal.get)(this._optionsForQueryParam(qp), 'refreshModel') && this._router.currentState) {\n            this.refresh();\n            break;\n          }\n        }\n\n        return true;\n      },\n\n      finalizeQueryParamChange(params, finalParams, transition) {\n        if (this.fullRouteName !== 'application') {\n          return true;\n        } // Transition object is absent for intermediate transitions.\n\n\n        if (!transition) {\n          return;\n        }\n\n        var routeInfos = transition[_router_js.STATE_SYMBOL].routeInfos;\n        var router = this._router;\n\n        var qpMeta = router._queryParamsFor(routeInfos);\n\n        var changes = router._qpUpdates;\n        var qpUpdated = false;\n        var replaceUrl;\n        (0, _utils2.stashParamNames)(router, routeInfos);\n\n        for (var i = 0; i < qpMeta.qps.length; ++i) {\n          var qp = qpMeta.qps[i];\n          var route = qp.route;\n          var controller = route.controller;\n          var presentKey = qp.urlKey in params && qp.urlKey; // Do a reverse lookup to see if the changed query\n          // param URL key corresponds to a QP property on\n          // this controller.\n\n          var value = void 0,\n              svalue = void 0;\n\n          if (changes.has(qp.urlKey)) {\n            // Value updated in/before setupController\n            value = (0, _metal.get)(controller, qp.prop);\n            svalue = route.serializeQueryParam(value, qp.urlKey, qp.type);\n          } else {\n            if (presentKey) {\n              svalue = params[presentKey];\n\n              if (svalue !== undefined) {\n                value = route.deserializeQueryParam(svalue, qp.urlKey, qp.type);\n              }\n            } else {\n              // No QP provided; use default value.\n              svalue = qp.serializedDefaultValue;\n              value = copyDefaultValue(qp.defaultValue);\n            }\n          }\n\n          controller._qpDelegate = (0, _metal.get)(route, '_qp.states.inactive');\n          var thisQueryParamChanged = svalue !== qp.serializedValue;\n\n          if (thisQueryParamChanged) {\n            if (transition.queryParamsOnly && replaceUrl !== false) {\n              var options = route._optionsForQueryParam(qp);\n\n              var replaceConfigValue = (0, _metal.get)(options, 'replace');\n\n              if (replaceConfigValue) {\n                replaceUrl = true;\n              } else if (replaceConfigValue === false) {\n                // Explicit pushState wins over any other replaceStates.\n                replaceUrl = false;\n              }\n            }\n\n            (0, _metal.set)(controller, qp.prop, value);\n            qpUpdated = true;\n          } // Stash current serialized value of controller.\n\n\n          qp.serializedValue = svalue;\n          var thisQueryParamHasDefaultValue = qp.serializedDefaultValue === svalue;\n\n          if (!thisQueryParamHasDefaultValue || transition._keepDefaultQueryParamValues) {\n            finalParams.push({\n              value: svalue,\n              visible: true,\n              key: presentKey || qp.urlKey\n            });\n          }\n        } // Some QPs have been updated, and those changes need to be propogated\n        // immediately. Eventually, we should work on making this async somehow.\n\n\n        if (qpUpdated === true) {\n          (0, _metal.flushAsyncObservers)(false);\n        }\n\n        if (replaceUrl) {\n          transition.method('replace');\n        }\n\n        qpMeta.qps.forEach(qp => {\n          var routeQpMeta = (0, _metal.get)(qp.route, '_qp');\n          var finalizedController = qp.route.controller;\n          finalizedController['_qpDelegate'] = (0, _metal.get)(routeQpMeta, 'states.active');\n        });\n\n        router._qpUpdates.clear();\n\n        return;\n      }\n\n    }\n  });\n  var ROUTER_EVENT_DEPRECATIONS;\n  _exports.ROUTER_EVENT_DEPRECATIONS = ROUTER_EVENT_DEPRECATIONS;\n\n  if (_deprecatedFeatures.ROUTER_EVENTS) {\n    _exports.ROUTER_EVENT_DEPRECATIONS = ROUTER_EVENT_DEPRECATIONS = {\n      on(name) {\n        this._super(...arguments);\n\n        var hasDidTransition = name === 'didTransition';\n        var hasWillTransition = name === 'willTransition';\n\n        if (hasDidTransition) {\n          (true && !(false) && (0, _debug.deprecate)('You attempted to listen to the \"didTransition\" event which is deprecated. Please inject the router service and listen to the \"routeDidChange\" event.', false, {\n            id: 'deprecate-router-events',\n            until: '4.0.0',\n            url: 'https://emberjs.com/deprecations/v3.x#toc_deprecate-router-events'\n          }));\n        }\n\n        if (hasWillTransition) {\n          (true && !(false) && (0, _debug.deprecate)('You attempted to listen to the \"willTransition\" event which is deprecated. Please inject the router service and listen to the \"routeWillChange\" event.', false, {\n            id: 'deprecate-router-events',\n            until: '4.0.0',\n            url: 'https://emberjs.com/deprecations/v3.x#toc_deprecate-router-events'\n          }));\n        }\n      }\n\n    };\n    Route.reopen(ROUTER_EVENT_DEPRECATIONS, {\n      _paramsFor(routeName, params) {\n        var transition = this._router._routerMicrolib.activeTransition;\n\n        if (transition !== undefined) {\n          return this.paramsFor(routeName);\n        }\n\n        return params;\n      }\n\n    });\n  }\n\n  (0, _runtime.setFrameworkClass)(Route);\n  var _default = Route;\n  _exports.default = _default;\n});","define(\"@ember/-internals/routing/lib/system/router\", [\"exports\", \"@ember/-internals/metal\", \"@ember/-internals/owner\", \"@ember/-internals/runtime\", \"@ember/debug\", \"@ember/deprecated-features\", \"@ember/error\", \"@ember/polyfills\", \"@ember/runloop\", \"@ember/-internals/routing/lib/location/api\", \"@ember/-internals/routing/lib/utils\", \"@ember/-internals/routing/lib/system/dsl\", \"@ember/-internals/routing/lib/system/route\", \"@ember/-internals/routing/lib/system/router_state\", \"router_js\"], function (_exports, _metal, _owner, _runtime, _debug, _deprecatedFeatures, _error2, _polyfills, _runloop, _api, _utils, _dsl, _route, _router_state, _router_js) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.triggerEvent = triggerEvent;\n  _exports.default = void 0;\n\n  function defaultDidTransition(infos) {\n    updatePaths(this);\n\n    this._cancelSlowTransitionTimer();\n\n    this.notifyPropertyChange('url');\n    this.set('currentState', this.targetState); // Put this in the runloop so url will be accurate. Seems\n    // less surprising than didTransition being out of sync.\n\n    (0, _runloop.once)(this, this.trigger, 'didTransition');\n\n    if (true\n    /* DEBUG */\n    ) {\n      if ((0, _metal.get)(this, 'namespace').LOG_TRANSITIONS) {\n        // eslint-disable-next-line no-console\n        console.log(`Transitioned into '${EmberRouter._routePath(infos)}'`);\n      }\n    }\n  }\n\n  function defaultWillTransition(oldInfos, newInfos, transition) {\n    (0, _runloop.once)(this, this.trigger, 'willTransition', transition);\n\n    if (true\n    /* DEBUG */\n    ) {\n      if ((0, _metal.get)(this, 'namespace').LOG_TRANSITIONS) {\n        // eslint-disable-next-line no-console\n        console.log(`Preparing to transition from '${EmberRouter._routePath(oldInfos)}' to '${EmberRouter._routePath(newInfos)}'`);\n      }\n    }\n  }\n\n  function K() {\n    return this;\n  }\n\n  var {\n    slice\n  } = Array.prototype;\n  /**\n    The `EmberRouter` class manages the application state and URLs. Refer to\n    the [routing guide](https://guides.emberjs.com/release/routing/) for documentation.\n  \n    @class EmberRouter\n    @extends EmberObject\n    @uses Evented\n    @public\n  */\n\n  class EmberRouter extends _runtime.Object {\n    constructor() {\n      super(...arguments);\n      this.currentURL = null;\n      this.currentRouteName = null;\n      this.currentPath = null;\n      this.currentRoute = null;\n      this._qpCache = Object.create(null);\n      this._qpUpdates = new Set();\n      this._queuedQPChanges = {};\n      this._toplevelView = null;\n      this._handledErrors = new Set();\n      this._engineInstances = Object.create(null);\n      this._engineInfoByRoute = Object.create(null);\n      this.currentState = null;\n      this.targetState = null;\n\n      this._resetQueuedQueryParameterChanges();\n    }\n\n    _initRouterJs() {\n      var location = (0, _metal.get)(this, 'location');\n      var router = this;\n      var owner = (0, _owner.getOwner)(this);\n      var seen = Object.create(null);\n\n      class PrivateRouter extends _router_js.default {\n        getRoute(name) {\n          var routeName = name;\n          var routeOwner = owner;\n          var engineInfo = router._engineInfoByRoute[routeName];\n\n          if (engineInfo) {\n            var engineInstance = router._getEngineInstance(engineInfo);\n\n            routeOwner = engineInstance;\n            routeName = engineInfo.localFullName;\n          }\n\n          var fullRouteName = `route:${routeName}`;\n          var route = routeOwner.lookup(fullRouteName);\n\n          if (seen[name]) {\n            return route;\n          }\n\n          seen[name] = true;\n\n          if (!route) {\n            var DefaultRoute = routeOwner.factoryFor('route:basic').class;\n            routeOwner.register(fullRouteName, DefaultRoute.extend());\n            route = routeOwner.lookup(fullRouteName);\n\n            if (true\n            /* DEBUG */\n            ) {\n              if ((0, _metal.get)(router, 'namespace.LOG_ACTIVE_GENERATION')) {\n                (0, _debug.info)(`generated -> ${fullRouteName}`, {\n                  fullName: fullRouteName\n                });\n              }\n            }\n          }\n\n          route._setRouteName(routeName);\n\n          if (engineInfo && !(0, _route.hasDefaultSerialize)(route)) {\n            throw new Error('Defining a custom serialize method on an Engine route is not supported.');\n          }\n\n          return route;\n        }\n\n        getSerializer(name) {\n          var engineInfo = router._engineInfoByRoute[name]; // If this is not an Engine route, we fall back to the handler for serialization\n\n          if (!engineInfo) {\n            return;\n          }\n\n          return engineInfo.serializeMethod || _route.defaultSerialize;\n        }\n\n        updateURL(path) {\n          (0, _runloop.once)(() => {\n            location.setURL(path);\n            (0, _metal.set)(router, 'currentURL', path);\n          });\n        }\n\n        didTransition(infos) {\n          if (_deprecatedFeatures.ROUTER_EVENTS) {\n            if (router.didTransition !== defaultDidTransition) {\n              (true && !(false) && (0, _debug.deprecate)('You attempted to override the \"didTransition\" method which is deprecated. Please inject the router service and listen to the \"routeDidChange\" event.', false, {\n                id: 'deprecate-router-events',\n                until: '4.0.0',\n                url: 'https://emberjs.com/deprecations/v3.x#toc_deprecate-router-events'\n              }));\n            }\n          }\n\n          router.didTransition(infos);\n        }\n\n        willTransition(oldInfos, newInfos, transition) {\n          if (_deprecatedFeatures.ROUTER_EVENTS) {\n            if (router.willTransition !== defaultWillTransition) {\n              (true && !(false) && (0, _debug.deprecate)('You attempted to override the \"willTransition\" method which is deprecated. Please inject the router service and listen to the \"routeWillChange\" event.', false, {\n                id: 'deprecate-router-events',\n                until: '4.0.0',\n                url: 'https://emberjs.com/deprecations/v3.x#toc_deprecate-router-events'\n              }));\n            }\n          }\n\n          router.willTransition(oldInfos, newInfos, transition);\n        }\n\n        triggerEvent(routeInfos, ignoreFailure, name, args) {\n          return triggerEvent.bind(router)(routeInfos, ignoreFailure, name, args);\n        }\n\n        routeWillChange(transition) {\n          router.trigger('routeWillChange', transition);\n        }\n\n        routeDidChange(transition) {\n          router.set('currentRoute', transition.to);\n          (0, _runloop.once)(() => {\n            router.trigger('routeDidChange', transition);\n          });\n        }\n\n        transitionDidError(error, transition) {\n          if (error.wasAborted || transition.isAborted) {\n            // If the error was a transition erorr or the transition aborted\n            // log the abort.\n            return (0, _router_js.logAbort)(transition);\n          } else {\n            // Otherwise trigger the \"error\" event to attempt an intermediate\n            // transition into an error substate\n            transition.trigger(false, 'error', error.error, transition, error.route);\n\n            if (router._isErrorHandled(error.error)) {\n              // If we handled the error with a substate just roll the state back on\n              // the transition and send the \"routeDidChange\" event for landing on\n              // the error substate and return the error.\n              transition.rollback();\n              this.routeDidChange(transition);\n              return error.error;\n            } else {\n              // If it was not handled, abort the transition completely and return\n              // the error.\n              transition.abort();\n              return error.error;\n            }\n          }\n        }\n\n        _triggerWillChangeContext() {\n          return router;\n        }\n\n        _triggerWillLeave() {\n          return router;\n        }\n\n        replaceURL(url) {\n          if (location.replaceURL) {\n            var doReplaceURL = () => {\n              location.replaceURL(url);\n              (0, _metal.set)(router, 'currentURL', url);\n            };\n\n            (0, _runloop.once)(doReplaceURL);\n          } else {\n            this.updateURL(url);\n          }\n        }\n\n      }\n\n      var routerMicrolib = this._routerMicrolib = new PrivateRouter();\n      var dslCallbacks = this.constructor.dslCallbacks || [K];\n\n      var dsl = this._buildDSL();\n\n      dsl.route('application', {\n        path: '/',\n        resetNamespace: true,\n        overrideNameAssertion: true\n      }, function () {\n        for (var i = 0; i < dslCallbacks.length; i++) {\n          dslCallbacks[i].call(this);\n        }\n      });\n\n      if (true\n      /* DEBUG */\n      ) {\n        if ((0, _metal.get)(this, 'namespace.LOG_TRANSITIONS_INTERNAL')) {\n          routerMicrolib.log = console.log.bind(console); // eslint-disable-line no-console\n        }\n      }\n\n      routerMicrolib.map(dsl.generate());\n    }\n\n    _buildDSL() {\n      var enableLoadingSubstates = this._hasModuleBasedResolver();\n\n      var router = this;\n      var owner = (0, _owner.getOwner)(this);\n      var options = {\n        enableLoadingSubstates,\n\n        resolveRouteMap(name) {\n          return owner.factoryFor(`route-map:${name}`);\n        },\n\n        addRouteForEngine(name, engineInfo) {\n          if (!router._engineInfoByRoute[name]) {\n            router._engineInfoByRoute[name] = engineInfo;\n          }\n        }\n\n      };\n      return new _dsl.default(null, options);\n    }\n    /*\n      Resets all pending query parameter changes.\n      Called after transitioning to a new route\n      based on query parameter changes.\n    */\n\n\n    _resetQueuedQueryParameterChanges() {\n      this._queuedQPChanges = {};\n    }\n\n    _hasModuleBasedResolver() {\n      var owner = (0, _owner.getOwner)(this);\n\n      if (!owner) {\n        return false;\n      }\n\n      var resolver = (0, _metal.get)(owner, 'application.__registry__.resolver.moduleBasedResolver');\n      return Boolean(resolver);\n    }\n    /**\n      Initializes the current router instance and sets up the change handling\n      event listeners used by the instances `location` implementation.\n         A property named `initialURL` will be used to determine the initial URL.\n      If no value is found `/` will be used.\n         @method startRouting\n      @private\n    */\n\n\n    startRouting() {\n      var initialURL = (0, _metal.get)(this, 'initialURL');\n\n      if (this.setupRouter()) {\n        if (initialURL === undefined) {\n          initialURL = (0, _metal.get)(this, 'location').getURL();\n        }\n\n        var initialTransition = this.handleURL(initialURL);\n\n        if (initialTransition && initialTransition.error) {\n          throw initialTransition.error;\n        }\n      }\n    }\n\n    setupRouter() {\n      this._setupLocation();\n\n      var location = (0, _metal.get)(this, 'location'); // Allow the Location class to cancel the router setup while it refreshes\n      // the page\n\n      if ((0, _metal.get)(location, 'cancelRouterSetup')) {\n        return false;\n      }\n\n      this._initRouterJs();\n\n      location.onUpdateURL(url => {\n        this.handleURL(url);\n      });\n      return true;\n    }\n\n    _setOutlets() {\n      // This is triggered async during Route#willDestroy.\n      // If the router is also being destroyed we do not want to\n      // to create another this._toplevelView (and leak the renderer)\n      if (this.isDestroying || this.isDestroyed) {\n        return;\n      }\n\n      var routeInfos = this._routerMicrolib.currentRouteInfos;\n      var route;\n      var defaultParentState;\n      var liveRoutes = null;\n\n      if (!routeInfos) {\n        return;\n      }\n\n      for (var i = 0; i < routeInfos.length; i++) {\n        route = routeInfos[i].route;\n\n        var connections = _route.ROUTE_CONNECTIONS.get(route);\n\n        var ownState = void 0;\n\n        for (var j = 0; j < connections.length; j++) {\n          var appended = appendLiveRoute(liveRoutes, defaultParentState, connections[j]);\n          liveRoutes = appended.liveRoutes;\n\n          if (appended.ownState.render.name === route.routeName || appended.ownState.render.outlet === 'main') {\n            ownState = appended.ownState;\n          }\n        }\n\n        if (connections.length === 0) {\n          ownState = representEmptyRoute(liveRoutes, defaultParentState, route);\n        }\n\n        defaultParentState = ownState;\n      } // when a transitionTo happens after the validation phase\n      // during the initial transition _setOutlets is called\n      // when no routes are active. However, it will get called\n      // again with the correct values during the next turn of\n      // the runloop\n\n\n      if (!liveRoutes) {\n        return;\n      }\n\n      if (!this._toplevelView) {\n        var owner = (0, _owner.getOwner)(this);\n        var OutletView = owner.factoryFor('view:-outlet');\n        this._toplevelView = OutletView.create();\n\n        this._toplevelView.setOutletState(liveRoutes);\n\n        var instance = owner.lookup('-application-instance:main');\n        instance.didCreateRootView(this._toplevelView);\n      } else {\n        this._toplevelView.setOutletState(liveRoutes);\n      }\n    }\n\n    handleURL(url) {\n      // Until we have an ember-idiomatic way of accessing #hashes, we need to\n      // remove it because router.js doesn't know how to handle it.\n      var _url = url.split(/#(.+)?/)[0];\n      return this._doURLTransition('handleURL', _url);\n    }\n\n    _doURLTransition(routerJsMethod, url) {\n      var transition = this._routerMicrolib[routerJsMethod](url || '/');\n\n      didBeginTransition(transition, this);\n      return transition;\n    }\n    /**\n      Transition the application into another route. The route may\n      be either a single route or route path:\n         See [transitionTo](/ember/release/classes/Route/methods/transitionTo?anchor=transitionTo) for more info.\n         @method transitionTo\n      @param {String} name the name of the route or a URL\n      @param {...Object} models the model(s) or identifier(s) to be used while\n        transitioning to the route.\n      @param {Object} [options] optional hash with a queryParams property\n        containing a mapping of query parameters\n      @return {Transition} the transition object associated with this\n        attempted transition\n      @public\n    */\n\n\n    transitionTo(...args) {\n      if ((0, _utils.resemblesURL)(args[0])) {\n        (true && !(!this.isDestroying && !this.isDestroyed) && (0, _debug.assert)(`A transition was attempted from '${this.currentRouteName}' to '${args[0]}' but the application instance has already been destroyed.`, !this.isDestroying && !this.isDestroyed));\n        return this._doURLTransition('transitionTo', args[0]);\n      }\n\n      var {\n        routeName,\n        models,\n        queryParams\n      } = (0, _utils.extractRouteArgs)(args);\n      (true && !(!this.isDestroying && !this.isDestroyed) && (0, _debug.assert)(`A transition was attempted from '${this.currentRouteName}' to '${routeName}' but the application instance has already been destroyed.`, !this.isDestroying && !this.isDestroyed));\n      return this._doTransition(routeName, models, queryParams);\n    }\n\n    intermediateTransitionTo(name, ...args) {\n      this._routerMicrolib.intermediateTransitionTo(name, ...args);\n\n      updatePaths(this);\n\n      if (true\n      /* DEBUG */\n      ) {\n        var infos = this._routerMicrolib.currentRouteInfos;\n\n        if ((0, _metal.get)(this, 'namespace').LOG_TRANSITIONS) {\n          // eslint-disable-next-line no-console\n          console.log(`Intermediate-transitioned into '${EmberRouter._routePath(infos)}'`);\n        }\n      }\n    }\n\n    replaceWith(...args) {\n      return this.transitionTo(...args).method('replace');\n    }\n\n    generate(name, ...args) {\n      var url = this._routerMicrolib.generate(name, ...args);\n\n      return this.location.formatURL(url);\n    }\n    /**\n      Determines if the supplied route is currently active.\n         @method isActive\n      @param routeName\n      @return {Boolean}\n      @private\n    */\n\n\n    isActive(routeName) {\n      return this._routerMicrolib.isActive(routeName);\n    }\n    /**\n      An alternative form of `isActive` that doesn't require\n      manual concatenation of the arguments into a single\n      array.\n         @method isActiveIntent\n      @param routeName\n      @param models\n      @param queryParams\n      @return {Boolean}\n      @private\n      @since 1.7.0\n    */\n\n\n    isActiveIntent(routeName, models, queryParams) {\n      return this.currentState.isActiveIntent(routeName, models, queryParams);\n    }\n\n    send(name, ...args) {\n      /*name, context*/\n      this._routerMicrolib.trigger(name, ...args);\n    }\n    /**\n      Does this router instance have the given route.\n         @method hasRoute\n      @return {Boolean}\n      @private\n    */\n\n\n    hasRoute(route) {\n      return this._routerMicrolib.hasRoute(route);\n    }\n    /**\n      Resets the state of the router by clearing the current route\n      handlers and deactivating them.\n         @private\n      @method reset\n     */\n\n\n    reset() {\n      if (this._routerMicrolib) {\n        this._routerMicrolib.reset();\n      }\n    }\n\n    willDestroy() {\n      if (this._toplevelView) {\n        this._toplevelView.destroy();\n\n        this._toplevelView = null;\n      }\n\n      this._super(...arguments);\n\n      this.reset();\n      var instances = this._engineInstances;\n\n      for (var name in instances) {\n        for (var id in instances[name]) {\n          (0, _runloop.run)(instances[name][id], 'destroy');\n        }\n      }\n    }\n    /*\n      Called when an active route's query parameter has changed.\n      These changes are batched into a runloop run and trigger\n      a single transition.\n    */\n\n\n    _activeQPChanged(queryParameterName, newValue) {\n      this._queuedQPChanges[queryParameterName] = newValue;\n      (0, _runloop.once)(this, this._fireQueryParamTransition);\n    }\n\n    _updatingQPChanged(queryParameterName) {\n      this._qpUpdates.add(queryParameterName);\n    }\n    /*\n      Triggers a transition to a route based on query parameter changes.\n      This is called once per runloop, to batch changes.\n         e.g.\n         if these methods are called in succession:\n      this._activeQPChanged('foo', '10');\n        // results in _queuedQPChanges = { foo: '10' }\n      this._activeQPChanged('bar', false);\n        // results in _queuedQPChanges = { foo: '10', bar: false }\n         _queuedQPChanges will represent both of these changes\n      and the transition using `transitionTo` will be triggered\n      once.\n    */\n\n\n    _fireQueryParamTransition() {\n      this.transitionTo({\n        queryParams: this._queuedQPChanges\n      });\n\n      this._resetQueuedQueryParameterChanges();\n    }\n\n    _setupLocation() {\n      var location = this.location;\n      var rootURL = this.rootURL;\n      var owner = (0, _owner.getOwner)(this);\n\n      if ('string' === typeof location && owner) {\n        var resolvedLocation = owner.lookup(`location:${location}`);\n\n        if (resolvedLocation !== undefined) {\n          location = (0, _metal.set)(this, 'location', resolvedLocation);\n        } else {\n          // Allow for deprecated registration of custom location API's\n          var options = {\n            implementation: location\n          };\n          location = (0, _metal.set)(this, 'location', _api.default.create(options));\n        }\n      }\n\n      if (location !== null && typeof location === 'object') {\n        if (rootURL) {\n          (0, _metal.set)(location, 'rootURL', rootURL);\n        } // Allow the location to do any feature detection, such as AutoLocation\n        // detecting history support. This gives it a chance to set its\n        // `cancelRouterSetup` property which aborts routing.\n\n\n        if (typeof location.detect === 'function') {\n          location.detect();\n        } // ensure that initState is called AFTER the rootURL is set on\n        // the location instance\n\n\n        if (typeof location.initState === 'function') {\n          location.initState();\n        }\n      }\n    }\n    /**\n      Serializes the given query params according to their QP meta information.\n         @private\n      @method _serializeQueryParams\n      @param {Arrray<RouteInfo>} routeInfos\n      @param {Object} queryParams\n      @return {Void}\n    */\n\n\n    _serializeQueryParams(routeInfos, queryParams) {\n      forEachQueryParam(this, routeInfos, queryParams, (key, value, qp) => {\n        if (qp) {\n          delete queryParams[key];\n          queryParams[qp.urlKey] = qp.route.serializeQueryParam(value, qp.urlKey, qp.type);\n        } else if (value === undefined) {\n          return; // We don't serialize undefined values\n        } else {\n          queryParams[key] = this._serializeQueryParam(value, (0, _runtime.typeOf)(value));\n        }\n      });\n    }\n    /**\n      Serializes the value of a query parameter based on a type\n         @private\n      @method _serializeQueryParam\n      @param {Object} value\n      @param {String} type\n    */\n\n\n    _serializeQueryParam(value, type) {\n      if (value === null || value === undefined) {\n        return value;\n      } else if (type === 'array') {\n        return JSON.stringify(value);\n      }\n\n      return `${value}`;\n    }\n    /**\n      Deserializes the given query params according to their QP meta information.\n         @private\n      @method _deserializeQueryParams\n      @param {Array<RouteInfo>} routeInfos\n      @param {Object} queryParams\n      @return {Void}\n    */\n\n\n    _deserializeQueryParams(routeInfos, queryParams) {\n      forEachQueryParam(this, routeInfos, queryParams, (key, value, qp) => {\n        // If we don't have QP meta info for a given key, then we do nothing\n        // because all values will be treated as strings\n        if (qp) {\n          delete queryParams[key];\n          queryParams[qp.prop] = qp.route.deserializeQueryParam(value, qp.urlKey, qp.type);\n        }\n      });\n    }\n    /**\n      Deserializes the value of a query parameter based on a default type\n         @private\n      @method _deserializeQueryParam\n      @param {Object} value\n      @param {String} defaultType\n    */\n\n\n    _deserializeQueryParam(value, defaultType) {\n      if (value === null || value === undefined) {\n        return value;\n      } else if (defaultType === 'boolean') {\n        return value === 'true';\n      } else if (defaultType === 'number') {\n        return Number(value).valueOf();\n      } else if (defaultType === 'array') {\n        return (0, _runtime.A)(JSON.parse(value));\n      }\n\n      return value;\n    }\n    /**\n      Removes (prunes) any query params with default values from the given QP\n      object. Default values are determined from the QP meta information per key.\n         @private\n      @method _pruneDefaultQueryParamValues\n      @param {Array<RouteInfo>} routeInfos\n      @param {Object} queryParams\n      @return {Void}\n    */\n\n\n    _pruneDefaultQueryParamValues(routeInfos, queryParams) {\n      var qps = this._queryParamsFor(routeInfos);\n\n      for (var key in queryParams) {\n        var qp = qps.map[key];\n\n        if (qp && qp.serializedDefaultValue === queryParams[key]) {\n          delete queryParams[key];\n        }\n      }\n    }\n\n    _doTransition(_targetRouteName, models, _queryParams, _keepDefaultQueryParamValues) {\n      var targetRouteName = _targetRouteName || (0, _utils.getActiveTargetName)(this._routerMicrolib);\n\n      (true && !(Boolean(targetRouteName) && this._routerMicrolib.hasRoute(targetRouteName)) && (0, _debug.assert)(`The route ${targetRouteName} was not found`, Boolean(targetRouteName) && this._routerMicrolib.hasRoute(targetRouteName)));\n      var queryParams = {};\n\n      this._processActiveTransitionQueryParams(targetRouteName, models, queryParams, _queryParams);\n\n      (0, _polyfills.assign)(queryParams, _queryParams);\n\n      this._prepareQueryParams(targetRouteName, models, queryParams, Boolean(_keepDefaultQueryParamValues));\n\n      var transition = this._routerMicrolib.transitionTo(targetRouteName, ...models, {\n        queryParams\n      });\n\n      didBeginTransition(transition, this);\n      return transition;\n    }\n\n    _processActiveTransitionQueryParams(targetRouteName, models, queryParams, _queryParams) {\n      // merge in any queryParams from the active transition which could include\n      // queryParams from the url on initial load.\n      if (!this._routerMicrolib.activeTransition) {\n        return;\n      }\n\n      var unchangedQPs = {};\n      var qpUpdates = this._qpUpdates;\n      var params = this._routerMicrolib.activeTransition[_router_js.QUERY_PARAMS_SYMBOL];\n\n      for (var key in params) {\n        if (!qpUpdates.has(key)) {\n          unchangedQPs[key] = params[key];\n        }\n      } // We need to fully scope queryParams so that we can create one object\n      // that represents both passed-in queryParams and ones that aren't changed\n      // from the active transition.\n\n\n      this._fullyScopeQueryParams(targetRouteName, models, _queryParams);\n\n      this._fullyScopeQueryParams(targetRouteName, models, unchangedQPs);\n\n      (0, _polyfills.assign)(queryParams, unchangedQPs);\n    }\n    /**\n      Prepares the query params for a URL or Transition. Restores any undefined QP\n      keys/values, serializes all values, and then prunes any default values.\n         @private\n      @method _prepareQueryParams\n      @param {String} targetRouteName\n      @param {Array<Object>} models\n      @param {Object} queryParams\n      @param {boolean} keepDefaultQueryParamValues\n      @return {Void}\n    */\n\n\n    _prepareQueryParams(targetRouteName, models, queryParams, _fromRouterService) {\n      var state = calculatePostTransitionState(this, targetRouteName, models);\n\n      this._hydrateUnsuppliedQueryParams(state, queryParams, Boolean(_fromRouterService));\n\n      this._serializeQueryParams(state.routeInfos, queryParams);\n\n      if (!_fromRouterService) {\n        this._pruneDefaultQueryParamValues(state.routeInfos, queryParams);\n      }\n    }\n    /**\n      Returns the meta information for the query params of a given route. This\n      will be overridden to allow support for lazy routes.\n         @private\n      @method _getQPMeta\n      @param {RouteInfo} routeInfo\n      @return {Object}\n    */\n\n\n    _getQPMeta(routeInfo) {\n      var route = routeInfo.route;\n      return route && (0, _metal.get)(route, '_qp');\n    }\n    /**\n      Returns a merged query params meta object for a given set of routeInfos.\n      Useful for knowing what query params are available for a given route hierarchy.\n         @private\n      @method _queryParamsFor\n      @param {Array<RouteInfo>} routeInfos\n      @return {Object}\n     */\n\n\n    _queryParamsFor(routeInfos) {\n      var routeInfoLength = routeInfos.length;\n      var leafRouteName = routeInfos[routeInfoLength - 1].name;\n      var cached = this._qpCache[leafRouteName];\n\n      if (cached !== undefined) {\n        return cached;\n      }\n\n      var shouldCache = true;\n      var map = {};\n      var qps = [];\n      var qpsByUrlKey = true\n      /* DEBUG */\n      ? {} : null;\n      var qpMeta;\n      var qp;\n      var urlKey;\n      var qpOther;\n\n      for (var i = 0; i < routeInfoLength; ++i) {\n        qpMeta = this._getQPMeta(routeInfos[i]);\n\n        if (!qpMeta) {\n          shouldCache = false;\n          continue;\n        } // Loop over each QP to make sure we don't have any collisions by urlKey\n\n\n        for (var _i = 0; _i < qpMeta.qps.length; _i++) {\n          qp = qpMeta.qps[_i];\n\n          if (true\n          /* DEBUG */\n          ) {\n            urlKey = qp.urlKey;\n            qpOther = qpsByUrlKey[urlKey];\n\n            if (qpOther && qpOther.controllerName !== qp.controllerName) {\n              (true && !(false) && (0, _debug.assert)(`You're not allowed to have more than one controller property map to the same query param key, but both \\`${qpOther.scopedPropertyName}\\` and \\`${qp.scopedPropertyName}\\` map to \\`${urlKey}\\`. You can fix this by mapping one of the controller properties to a different query param key via the \\`as\\` config option, e.g. \\`${qpOther.prop}: { as: \\'other-${qpOther.prop}\\' }\\``, false));\n            }\n\n            qpsByUrlKey[urlKey] = qp;\n          }\n\n          qps.push(qp);\n        }\n\n        (0, _polyfills.assign)(map, qpMeta.map);\n      }\n\n      var finalQPMeta = {\n        qps,\n        map\n      };\n\n      if (shouldCache) {\n        this._qpCache[leafRouteName] = finalQPMeta;\n      }\n\n      return finalQPMeta;\n    }\n    /**\n      Maps all query param keys to their fully scoped property name of the form\n      `controllerName:propName`.\n         @private\n      @method _fullyScopeQueryParams\n      @param {String} leafRouteName\n      @param {Array<Object>} contexts\n      @param {Object} queryParams\n      @return {Void}\n    */\n\n\n    _fullyScopeQueryParams(leafRouteName, contexts, queryParams) {\n      var state = calculatePostTransitionState(this, leafRouteName, contexts);\n      var routeInfos = state.routeInfos;\n      var qpMeta;\n\n      for (var i = 0, len = routeInfos.length; i < len; ++i) {\n        qpMeta = this._getQPMeta(routeInfos[i]);\n\n        if (!qpMeta) {\n          continue;\n        }\n\n        var qp = void 0;\n        var presentProp = void 0;\n\n        for (var j = 0, qpLen = qpMeta.qps.length; j < qpLen; ++j) {\n          qp = qpMeta.qps[j];\n          presentProp = qp.prop in queryParams && qp.prop || qp.scopedPropertyName in queryParams && qp.scopedPropertyName || qp.urlKey in queryParams && qp.urlKey;\n\n          if (presentProp) {\n            if (presentProp !== qp.scopedPropertyName) {\n              queryParams[qp.scopedPropertyName] = queryParams[presentProp];\n              delete queryParams[presentProp];\n            }\n          }\n        }\n      }\n    }\n    /**\n      Hydrates (adds/restores) any query params that have pre-existing values into\n      the given queryParams hash. This is what allows query params to be \"sticky\"\n      and restore their last known values for their scope.\n         @private\n      @method _hydrateUnsuppliedQueryParams\n      @param {TransitionState} state\n      @param {Object} queryParams\n      @return {Void}\n    */\n\n\n    _hydrateUnsuppliedQueryParams(state, queryParams, _fromRouterService) {\n      var routeInfos = state.routeInfos;\n      var appCache = this._bucketCache;\n      var qpMeta;\n      var qp;\n      var presentProp;\n\n      for (var i = 0; i < routeInfos.length; ++i) {\n        qpMeta = this._getQPMeta(routeInfos[i]);\n\n        if (!qpMeta) {\n          continue;\n        }\n\n        for (var j = 0, qpLen = qpMeta.qps.length; j < qpLen; ++j) {\n          qp = qpMeta.qps[j];\n          presentProp = qp.prop in queryParams && qp.prop || qp.scopedPropertyName in queryParams && qp.scopedPropertyName || qp.urlKey in queryParams && qp.urlKey;\n          (true && !(function () {\n            if (qp.urlKey === presentProp) {\n              return true;\n            }\n\n            if (_fromRouterService && presentProp !== false && qp.urlKey !== qp.prop) {\n              // assumptions (mainly from current transitionTo_test):\n              // - this is only supposed to be run when there is an alias to a query param and the alias is used to set the param\n              // - when there is no alias: qp.urlKey == qp.prop\n              return false;\n            }\n\n            return true;\n          }()) && (0, _debug.assert)(`You passed the \\`${presentProp}\\` query parameter during a transition into ${qp.route.routeName}, please update to ${qp.urlKey}`, function () {\n            if (qp.urlKey === presentProp) {\n              return true;\n            }\n\n            if (_fromRouterService && presentProp !== false && qp.urlKey !== qp.prop) {\n              return false;\n            }\n\n            return true;\n          }()));\n\n          if (presentProp) {\n            if (presentProp !== qp.scopedPropertyName) {\n              queryParams[qp.scopedPropertyName] = queryParams[presentProp];\n              delete queryParams[presentProp];\n            }\n          } else {\n            var cacheKey = (0, _utils.calculateCacheKey)(qp.route.fullRouteName, qp.parts, state.params);\n            queryParams[qp.scopedPropertyName] = appCache.lookup(cacheKey, qp.prop, qp.defaultValue);\n          }\n        }\n      }\n    }\n\n    _scheduleLoadingEvent(transition, originRoute) {\n      this._cancelSlowTransitionTimer();\n\n      this._slowTransitionTimer = (0, _runloop.scheduleOnce)('routerTransitions', this, '_handleSlowTransition', transition, originRoute);\n    }\n\n    _handleSlowTransition(transition, originRoute) {\n      if (!this._routerMicrolib.activeTransition) {\n        // Don't fire an event if we've since moved on from\n        // the transition that put us in a loading state.\n        return;\n      }\n\n      var targetState = new _router_state.default(this, this._routerMicrolib, this._routerMicrolib.activeTransition[_router_js.STATE_SYMBOL]);\n      this.set('targetState', targetState);\n      transition.trigger(true, 'loading', transition, originRoute);\n    }\n\n    _cancelSlowTransitionTimer() {\n      if (this._slowTransitionTimer) {\n        (0, _runloop.cancel)(this._slowTransitionTimer);\n      }\n\n      this._slowTransitionTimer = null;\n    } // These three helper functions are used to ensure errors aren't\n    // re-raised if they're handled in a route's error action.\n\n\n    _markErrorAsHandled(error) {\n      this._handledErrors.add(error);\n    }\n\n    _isErrorHandled(error) {\n      return this._handledErrors.has(error);\n    }\n\n    _clearHandledError(error) {\n      this._handledErrors.delete(error);\n    }\n\n    _getEngineInstance({\n      name,\n      instanceId,\n      mountPoint\n    }) {\n      var engineInstances = this._engineInstances;\n\n      if (!engineInstances[name]) {\n        engineInstances[name] = Object.create(null);\n      }\n\n      var engineInstance = engineInstances[name][instanceId];\n\n      if (!engineInstance) {\n        var owner = (0, _owner.getOwner)(this);\n        (true && !(owner.hasRegistration(`engine:${name}`)) && (0, _debug.assert)(`You attempted to mount the engine '${name}' in your router map, but the engine can not be found.`, owner.hasRegistration(`engine:${name}`)));\n        engineInstance = owner.buildChildEngineInstance(name, {\n          routable: true,\n          mountPoint\n        });\n        engineInstance.boot();\n        engineInstances[name][instanceId] = engineInstance;\n      }\n\n      return engineInstance;\n    }\n\n  }\n  /*\n    Helper function for iterating over routes in a set of routeInfos that are\n    at or above the given origin route. Example: if `originRoute` === 'foo.bar'\n    and the routeInfos given were for 'foo.bar.baz', then the given callback\n    will be invoked with the routes for 'foo.bar', 'foo', and 'application'\n    individually.\n  \n    If the callback returns anything other than `true`, then iteration will stop.\n  \n    @private\n    @param {Route} originRoute\n    @param {Array<RouteInfo>} routeInfos\n    @param {Function} callback\n    @return {Void}\n   */\n\n\n  function forEachRouteAbove(routeInfos, callback) {\n    for (var i = routeInfos.length - 1; i >= 0; --i) {\n      var routeInfo = routeInfos[i];\n      var route = routeInfo.route; // routeInfo.handler being `undefined` generally means either:\n      //\n      // 1. an error occurred during creation of the route in question\n      // 2. the route is across an async boundary (e.g. within an engine)\n      //\n      // In both of these cases, we cannot invoke the callback on that specific\n      // route, because it just doesn't exist...\n\n      if (route === undefined) {\n        continue;\n      }\n\n      if (callback(route, routeInfo) !== true) {\n        return;\n      }\n    }\n  } // These get invoked when an action bubbles above ApplicationRoute\n  // and are not meant to be overridable.\n\n\n  var defaultActionHandlers = {\n    willResolveModel(_routeInfos, transition, originRoute) {\n      this._scheduleLoadingEvent(transition, originRoute);\n    },\n\n    // Attempt to find an appropriate error route or substate to enter.\n    error(routeInfos, error, transition) {\n      var router = this;\n      var routeInfoWithError = routeInfos[routeInfos.length - 1];\n      forEachRouteAbove(routeInfos, (route, routeInfo) => {\n        // We don't check the leaf most routeInfo since that would\n        // technically be below where we're at in the route hierarchy.\n        if (routeInfo !== routeInfoWithError) {\n          // Check for the existence of an 'error' route.\n          var errorRouteName = findRouteStateName(route, 'error');\n\n          if (errorRouteName) {\n            router._markErrorAsHandled(error);\n\n            router.intermediateTransitionTo(errorRouteName, error);\n            return false;\n          }\n        } // Check for an 'error' substate route\n\n\n        var errorSubstateName = findRouteSubstateName(route, 'error');\n\n        if (errorSubstateName) {\n          router._markErrorAsHandled(error);\n\n          router.intermediateTransitionTo(errorSubstateName, error);\n          return false;\n        }\n\n        return true;\n      });\n      logError(error, `Error while processing route: ${transition.targetName}`);\n    },\n\n    // Attempt to find an appropriate loading route or substate to enter.\n    loading(routeInfos, transition) {\n      var router = this;\n      var routeInfoWithSlowLoading = routeInfos[routeInfos.length - 1];\n      forEachRouteAbove(routeInfos, (route, routeInfo) => {\n        // We don't check the leaf most routeInfos since that would\n        // technically be below where we're at in the route hierarchy.\n        if (routeInfo !== routeInfoWithSlowLoading) {\n          // Check for the existence of a 'loading' route.\n          var loadingRouteName = findRouteStateName(route, 'loading');\n\n          if (loadingRouteName) {\n            router.intermediateTransitionTo(loadingRouteName);\n            return false;\n          }\n        } // Check for loading substate\n\n\n        var loadingSubstateName = findRouteSubstateName(route, 'loading');\n\n        if (loadingSubstateName) {\n          router.intermediateTransitionTo(loadingSubstateName);\n          return false;\n        } // Don't bubble above pivot route.\n\n\n        return transition.pivotHandler !== route;\n      });\n    }\n\n  };\n\n  function logError(_error, initialMessage) {\n    var errorArgs = [];\n    var error;\n\n    if (_error && typeof _error === 'object' && typeof _error.errorThrown === 'object') {\n      error = _error.errorThrown;\n    } else {\n      error = _error;\n    }\n\n    if (initialMessage) {\n      errorArgs.push(initialMessage);\n    }\n\n    if (error) {\n      if (error.message) {\n        errorArgs.push(error.message);\n      }\n\n      if (error.stack) {\n        errorArgs.push(error.stack);\n      }\n\n      if (typeof error === 'string') {\n        errorArgs.push(error);\n      }\n    }\n\n    console.error(...errorArgs); //eslint-disable-line no-console\n  }\n  /**\n    Finds the name of the substate route if it exists for the given route. A\n    substate route is of the form `route_state`, such as `foo_loading`.\n  \n    @private\n    @param {Route} route\n    @param {String} state\n    @return {String}\n  */\n\n\n  function findRouteSubstateName(route, state) {\n    var owner = (0, _owner.getOwner)(route);\n    var {\n      routeName,\n      fullRouteName,\n      _router: router\n    } = route;\n    var substateName = `${routeName}_${state}`;\n    var substateNameFull = `${fullRouteName}_${state}`;\n    return routeHasBeenDefined(owner, router, substateName, substateNameFull) ? substateNameFull : '';\n  }\n  /**\n    Finds the name of the state route if it exists for the given route. A state\n    route is of the form `route.state`, such as `foo.loading`. Properly Handles\n    `application` named routes.\n  \n    @private\n    @param {Route} route\n    @param {String} state\n    @return {String}\n  */\n\n\n  function findRouteStateName(route, state) {\n    var owner = (0, _owner.getOwner)(route);\n    var {\n      routeName,\n      fullRouteName,\n      _router: router\n    } = route;\n    var stateName = routeName === 'application' ? state : `${routeName}.${state}`;\n    var stateNameFull = fullRouteName === 'application' ? state : `${fullRouteName}.${state}`;\n    return routeHasBeenDefined(owner, router, stateName, stateNameFull) ? stateNameFull : '';\n  }\n  /**\n    Determines whether or not a route has been defined by checking that the route\n    is in the Router's map and the owner has a registration for that route.\n  \n    @private\n    @param {Owner} owner\n    @param {Router} router\n    @param {String} localName\n    @param {String} fullName\n    @return {Boolean}\n  */\n\n\n  function routeHasBeenDefined(owner, router, localName, fullName) {\n    var routerHasRoute = router.hasRoute(fullName);\n    var ownerHasRoute = owner.hasRegistration(`template:${localName}`) || owner.hasRegistration(`route:${localName}`);\n    return routerHasRoute && ownerHasRoute;\n  }\n\n  function triggerEvent(routeInfos, ignoreFailure, name, args) {\n    if (!routeInfos) {\n      if (ignoreFailure) {\n        return;\n      }\n\n      throw new _error2.default(`Can't trigger action '${name}' because your app hasn't finished transitioning into its first route. To trigger an action on destination routes during a transition, you can call \\`.send()\\` on the \\`Transition\\` object passed to the \\`model/beforeModel/afterModel\\` hooks.`);\n    }\n\n    var eventWasHandled = false;\n    var routeInfo, handler, actionHandler;\n\n    for (var i = routeInfos.length - 1; i >= 0; i--) {\n      routeInfo = routeInfos[i];\n      handler = routeInfo.route;\n      actionHandler = handler && handler.actions && handler.actions[name];\n\n      if (actionHandler) {\n        if (actionHandler.apply(handler, args) === true) {\n          eventWasHandled = true;\n        } else {\n          // Should only hit here if a non-bubbling error action is triggered on a route.\n          if (name === 'error') {\n            handler._router._markErrorAsHandled(args[0]);\n          }\n\n          return;\n        }\n      }\n    }\n\n    var defaultHandler = defaultActionHandlers[name];\n\n    if (defaultHandler) {\n      defaultHandler.apply(this, [routeInfos, ...args]);\n      return;\n    }\n\n    if (!eventWasHandled && !ignoreFailure) {\n      throw new _error2.default(`Nothing handled the action '${name}'. If you did handle the action, this error can be caused by returning true from an action handler in a controller, causing the action to bubble.`);\n    }\n  }\n\n  function calculatePostTransitionState(emberRouter, leafRouteName, contexts) {\n    var state = emberRouter._routerMicrolib.applyIntent(leafRouteName, contexts);\n\n    var {\n      routeInfos,\n      params\n    } = state;\n\n    for (var i = 0; i < routeInfos.length; ++i) {\n      var routeInfo = routeInfos[i]; // If the routeInfo is not resolved, we serialize the context into params\n\n      if (!routeInfo.isResolved) {\n        params[routeInfo.name] = routeInfo.serialize(routeInfo.context);\n      } else {\n        params[routeInfo.name] = routeInfo.params;\n      }\n    }\n\n    return state;\n  }\n\n  function updatePaths(router) {\n    var infos = router._routerMicrolib.currentRouteInfos;\n\n    if (infos.length === 0) {\n      return;\n    }\n\n    var path = EmberRouter._routePath(infos);\n\n    var currentRouteName = infos[infos.length - 1].name;\n    var currentURL = router.get('location').getURL();\n    (0, _metal.set)(router, 'currentPath', path);\n    (0, _metal.set)(router, 'currentRouteName', currentRouteName);\n    (0, _metal.set)(router, 'currentURL', currentURL);\n    var appController = (0, _owner.getOwner)(router).lookup('controller:application');\n\n    if (!appController) {\n      // appController might not exist when top-level loading/error\n      // substates have been entered since ApplicationRoute hasn't\n      // actually been entered at that point.\n      return;\n    }\n\n    if (_deprecatedFeatures.APP_CTRL_ROUTER_PROPS) {\n      if (!('currentPath' in appController)) {\n        Object.defineProperty(appController, 'currentPath', {\n          get() {\n            (true && !(false) && (0, _debug.deprecate)('Accessing `currentPath` on `controller:application` is deprecated, use the `currentPath` property on `service:router` instead.', false, {\n              id: 'application-controller.router-properties',\n              until: '4.0.0',\n              url: 'https://emberjs.com/deprecations/v3.x#toc_application-controller-router-properties'\n            }));\n            return (0, _metal.get)(router, 'currentPath');\n          }\n\n        });\n      }\n\n      (0, _metal.notifyPropertyChange)(appController, 'currentPath');\n\n      if (!('currentRouteName' in appController)) {\n        Object.defineProperty(appController, 'currentRouteName', {\n          get() {\n            (true && !(false) && (0, _debug.deprecate)('Accessing `currentRouteName` on `controller:application` is deprecated, use the `currentRouteName` property on `service:router` instead.', false, {\n              id: 'application-controller.router-properties',\n              until: '4.0.0',\n              url: 'https://emberjs.com/deprecations/v3.x#toc_application-controller-router-properties'\n            }));\n            return (0, _metal.get)(router, 'currentRouteName');\n          }\n\n        });\n      }\n\n      (0, _metal.notifyPropertyChange)(appController, 'currentRouteName');\n    }\n  }\n\n  EmberRouter.reopenClass({\n    /**\n      The `Router.map` function allows you to define mappings from URLs to routes\n      in your application. These mappings are defined within the\n      supplied callback function using `this.route`.\n         The first parameter is the name of the route which is used by default as the\n      path name as well.\n         The second parameter is the optional options hash. Available options are:\n           * `path`: allows you to provide your own path as well as mark dynamic\n          segments.\n        * `resetNamespace`: false by default; when nesting routes, ember will\n          combine the route names to form the fully-qualified route name, which is\n          used with `{{link-to}}` or manually transitioning to routes. Setting\n          `resetNamespace: true` will cause the route not to inherit from its\n          parent route's names. This is handy for preventing extremely long route names.\n          Keep in mind that the actual URL path behavior is still retained.\n         The third parameter is a function, which can be used to nest routes.\n      Nested routes, by default, will have the parent route tree's route name and\n      path prepended to it's own.\n         ```app/router.js\n      Router.map(function(){\n        this.route('post', { path: '/post/:post_id' }, function() {\n          this.route('edit');\n          this.route('comments', { resetNamespace: true }, function() {\n            this.route('new');\n          });\n        });\n      });\n      ```\n         @method map\n      @param callback\n      @public\n    */\n    map(callback) {\n      if (!this.dslCallbacks) {\n        this.dslCallbacks = [];\n        this.reopenClass({\n          dslCallbacks: this.dslCallbacks\n        });\n      }\n\n      this.dslCallbacks.push(callback);\n      return this;\n    },\n\n    _routePath(routeInfos) {\n      var path = []; // We have to handle coalescing resource names that\n      // are prefixed with their parent's names, e.g.\n      // ['foo', 'foo.bar.baz'] => 'foo.bar.baz', not 'foo.foo.bar.baz'\n\n      function intersectionMatches(a1, a2) {\n        for (var i = 0; i < a1.length; ++i) {\n          if (a1[i] !== a2[i]) {\n            return false;\n          }\n        }\n\n        return true;\n      }\n\n      var name, nameParts, oldNameParts;\n\n      for (var i = 1; i < routeInfos.length; i++) {\n        name = routeInfos[i].name;\n        nameParts = name.split('.');\n        oldNameParts = slice.call(path);\n\n        while (oldNameParts.length) {\n          if (intersectionMatches(oldNameParts, nameParts)) {\n            break;\n          }\n\n          oldNameParts.shift();\n        }\n\n        path.push(...nameParts.slice(oldNameParts.length));\n      }\n\n      return path.join('.');\n    }\n\n  });\n\n  function didBeginTransition(transition, router) {\n    var routerState = new _router_state.default(router, router._routerMicrolib, transition[_router_js.STATE_SYMBOL]);\n\n    if (!router.currentState) {\n      router.set('currentState', routerState);\n    }\n\n    router.set('targetState', routerState);\n    transition.promise = transition.catch(error => {\n      if (router._isErrorHandled(error)) {\n        router._clearHandledError(error);\n      } else {\n        throw error;\n      }\n    }, 'Transition Error');\n  }\n\n  function forEachQueryParam(router, routeInfos, queryParams, callback) {\n    var qpCache = router._queryParamsFor(routeInfos);\n\n    for (var key in queryParams) {\n      if (!queryParams.hasOwnProperty(key)) {\n        continue;\n      }\n\n      var value = queryParams[key];\n      var qp = qpCache.map[key];\n      callback(key, value, qp);\n    }\n  }\n\n  function findLiveRoute(liveRoutes, name) {\n    if (!liveRoutes) {\n      return;\n    }\n\n    var stack = [liveRoutes];\n\n    while (stack.length > 0) {\n      var test = stack.shift();\n\n      if (test.render.name === name) {\n        return test;\n      }\n\n      var outlets = test.outlets;\n\n      for (var outletName in outlets) {\n        stack.push(outlets[outletName]);\n      }\n    }\n\n    return;\n  }\n\n  function appendLiveRoute(liveRoutes, defaultParentState, renderOptions) {\n    var target;\n    var myState = {\n      render: renderOptions,\n      outlets: Object.create(null),\n      wasUsed: false\n    };\n\n    if (renderOptions.into) {\n      target = findLiveRoute(liveRoutes, renderOptions.into);\n    } else {\n      target = defaultParentState;\n    }\n\n    if (target) {\n      (0, _metal.set)(target.outlets, renderOptions.outlet, myState);\n    } else {\n      liveRoutes = myState;\n    }\n\n    return {\n      liveRoutes,\n      ownState: myState\n    };\n  }\n\n  function representEmptyRoute(liveRoutes, defaultParentState, route) {\n    // the route didn't render anything\n    var alreadyAppended = findLiveRoute(liveRoutes, route.routeName);\n\n    if (alreadyAppended) {\n      // But some other route has already rendered our default\n      // template, so that becomes the default target for any\n      // children we may have.\n      return alreadyAppended;\n    } else {\n      // Create an entry to represent our default template name,\n      // just so other routes can target it and inherit its place\n      // in the outlet hierarchy.\n      defaultParentState.outlets.main = {\n        render: {\n          name: route.routeName,\n          outlet: 'main'\n        },\n        outlets: {}\n      };\n      return defaultParentState;\n    }\n  }\n\n  EmberRouter.reopen(_runtime.Evented, {\n    /**\n      Handles updating the paths and notifying any listeners of the URL\n      change.\n         Triggers the router level `didTransition` hook.\n         For example, to notify google analytics when the route changes,\n      you could use this hook.  (Note: requires also including GA scripts, etc.)\n         ```javascript\n      import config from './config/environment';\n      import EmberRouter from '@ember/routing/router';\n      import { inject as service } from '@ember/service';\n         let Router = EmberRouter.extend({\n        location: config.locationType,\n           router: service(),\n           didTransition: function() {\n          this._super(...arguments);\n             ga('send', 'pageview', {\n            page: this.router.currentURL,\n            title: this.router.currentRouteName,\n          });\n        }\n      });\n      ```\n         @method didTransition\n      @public\n      @since 1.2.0\n    */\n    didTransition: defaultDidTransition,\n\n    /**\n      Handles notifying any listeners of an impending URL\n      change.\n         Triggers the router level `willTransition` hook.\n         @method willTransition\n      @public\n      @since 1.11.0\n    */\n    willTransition: defaultWillTransition,\n\n    /**\n     Represents the URL of the root of the application, often '/'. This prefix is\n     assumed on all routes defined on this router.\n        @property rootURL\n     @default '/'\n     @public\n    */\n    rootURL: '/',\n\n    /**\n     The `location` property determines the type of URL's that your\n     application will use.\n        The following location types are currently available:\n        * `history` - use the browser's history API to make the URLs look just like any standard URL\n     * `hash` - use `#` to separate the server part of the URL from the Ember part: `/blog/#/posts/new`\n     * `none` - do not store the Ember URL in the actual browser URL (mainly used for testing)\n     * `auto` - use the best option based on browser capabilities: `history` if possible, then `hash` if possible, otherwise `none`\n        This value is defaulted to `auto` by the `locationType` setting of `/config/environment.js`\n        @property location\n     @default 'hash'\n     @see {Location}\n     @public\n    */\n    location: 'hash',\n\n    /**\n     Represents the current URL.\n        @property url\n     @type {String}\n     @private\n    */\n    url: (0, _metal.computed)(function () {\n      var location = (0, _metal.get)(this, 'location');\n\n      if (typeof location === 'string') {\n        return undefined;\n      }\n\n      return location.getURL();\n    })\n  });\n\n  if (_deprecatedFeatures.ROUTER_EVENTS) {\n    EmberRouter.reopen(_route.ROUTER_EVENT_DEPRECATIONS);\n  }\n\n  var _default = EmberRouter;\n  _exports.default = _default;\n});","define(\"@ember/-internals/routing/lib/system/router_state\", [\"exports\", \"@ember/polyfills\", \"@ember/-internals/routing/lib/utils\"], function (_exports, _polyfills, _utils) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  class RouterState {\n    constructor(emberRouter, router, routerJsState) {\n      this.emberRouter = emberRouter;\n      this.router = router;\n      this.routerJsState = routerJsState;\n    }\n\n    isActiveIntent(routeName, models, queryParams, queryParamsMustMatch) {\n      var state = this.routerJsState;\n\n      if (!this.router.isActiveIntent(routeName, models, undefined, state)) {\n        return false;\n      }\n\n      if (queryParamsMustMatch && Object.keys(queryParams).length > 0) {\n        var visibleQueryParams = (0, _polyfills.assign)({}, queryParams);\n\n        this.emberRouter._prepareQueryParams(routeName, models, visibleQueryParams);\n\n        return (0, _utils.shallowEqual)(visibleQueryParams, state.queryParams);\n      }\n\n      return true;\n    }\n\n  }\n\n  _exports.default = RouterState;\n});","define(\"@ember/-internals/routing/lib/system/transition\", [], function () {\n  \"use strict\";\n  /**\n    A Transition is a thennable (a promise-like object) that represents\n    an attempt to transition to another route. It can be aborted, either\n    explicitly via `abort` or by attempting another transition while a\n    previous one is still underway. An aborted transition can also\n    be `retry()`d later.\n  \n    @class Transition\n    @public\n  */\n\n  /**\n    The Transition's internal promise. Calling `.then` on this property\n    is that same as calling `.then` on the Transition object itself, but\n    this property is exposed for when you want to pass around a\n    Transition's promise, but not the Transition object itself, since\n    Transition object can be externally `abort`ed, while the promise\n    cannot.\n  \n    @property promise\n    @type {Object}\n    @public\n    */\n\n  /**\n    Custom state can be stored on a Transition's `data` object.\n    This can be useful for decorating a Transition within an earlier\n    hook and shared with a later hook. Properties set on `data` will\n    be copied to new transitions generated by calling `retry` on this\n    transition.\n  \n    @property data\n    @type {Object}\n    @public\n  */\n\n  /**\n    A standard promise hook that resolves if the transition\n    succeeds and rejects if it fails/redirects/aborts.\n  \n    Forwards to the internal `promise` property which you can\n    use in situations where you want to pass around a thennable,\n    but not the Transition itself.\n  \n    @method then\n    @param {Function} onFulfilled\n    @param {Function} onRejected\n    @param {String} label optional string for labeling the promise.\n    Useful for tooling.\n    @return {Promise}\n    @public\n  */\n\n  /**\n  \n    Forwards to the internal `promise` property which you can\n    use in situations where you want to pass around a thennable,\n    but not the Transition itself.\n  \n    @method catch\n    @param {Function} onRejection\n    @param {String} label optional string for labeling the promise.\n    Useful for tooling.\n    @return {Promise}\n    @public\n  */\n\n  /**\n  \n    Forwards to the internal `promise` property which you can\n    use in situations where you want to pass around a thennable,\n    but not the Transition itself.\n  \n    @method finally\n    @param {Function} callback\n    @param {String} label optional string for labeling the promise.\n    Useful for tooling.\n    @return {Promise}\n    @public\n  */\n\n  /**\n    Aborts the Transition. Note you can also implicitly abort a transition\n    by initiating another transition while a previous one is underway.\n  \n    @method abort\n    @return {Transition} this transition\n    @public\n  */\n\n  /**\n  \n    Retries a previously-aborted transition (making sure to abort the\n    transition if it's still active). Returns a new transition that\n    represents the new attempt to transition.\n  \n    @method retry\n    @return {Transition} new transition\n    @public\n    */\n\n  /**\n  \n    Sets the URL-changing method to be employed at the end of a\n    successful transition. By default, a new Transition will just\n    use `updateURL`, but passing 'replace' to this method will\n    cause the URL to update using 'replaceWith' instead. Omitting\n    a parameter will disable the URL change, allowing for transitions\n    that don't update the URL at completion (this is also used for\n    handleURL, since the URL has already changed before the\n    transition took place).\n  \n    @method method\n    @param {String} method the type of URL-changing method to use\n      at the end of a transition. Accepted values are 'replace',\n      falsy values, or any other non-falsy value (which is\n      interpreted as an updateURL transition).\n  \n    @return {Transition} this transition\n    @public\n  */\n\n  /**\n  \n    Fires an event on the current list of resolved/resolving\n    handlers within this transition. Useful for firing events\n    on route hierarchies that haven't fully been entered yet.\n  \n    Note: This method is also aliased as `send`\n  \n    @method trigger\n    @param {Boolean} [ignoreFailure=false] a boolean specifying whether unhandled events throw an error\n    @param {String} name the name of the event to fire\n    @public\n  */\n\n  /**\n   * This property is a `RouteInfo` object that represents\n   * where the router is transitioning to. It's important\n   * to note that a `RouteInfo` is a linked list and this\n   * property represents the leafmost route.\n   * @property {null|RouteInfo|RouteInfoWithAttributes} to\n   * @public\n   */\n\n  /**\n   * This property is a `RouteInfo` object that represents\n   * where transition originated from. It's important\n   * to note that a `RouteInfo` is a linked list and this\n   * property represents the head node of the list.\n   * In the case of an initial render, `from` will be set to\n   * `null`.\n   * @property {null|RouteInfoWithAttributes} from\n   * @public\n   */\n\n  /**\n    Transitions are aborted and their promises rejected\n    when redirects occur; this method returns a promise\n    that will follow any redirects that occur and fulfill\n    with the value fulfilled by any redirecting transitions\n    that occur.\n  \n    @method followRedirects\n    @return {Promise} a promise that fulfills with the same\n      value that the final redirecting transition fulfills with\n    @public\n  */\n});","define(\"@ember/-internals/routing/lib/utils\", [\"exports\", \"@ember/-internals/metal\", \"@ember/-internals/owner\", \"@ember/error\", \"@ember/polyfills\", \"router_js\"], function (_exports, _metal, _owner, _error, _polyfills, _router_js) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.extractRouteArgs = extractRouteArgs;\n  _exports.getActiveTargetName = getActiveTargetName;\n  _exports.stashParamNames = stashParamNames;\n  _exports.calculateCacheKey = calculateCacheKey;\n  _exports.normalizeControllerQueryParams = normalizeControllerQueryParams;\n  _exports.resemblesURL = resemblesURL;\n  _exports.prefixRouteNameArg = prefixRouteNameArg;\n  _exports.shallowEqual = shallowEqual;\n  var ALL_PERIODS_REGEX = /\\./g;\n\n  function extractRouteArgs(args) {\n    args = args.slice();\n    var possibleQueryParams = args[args.length - 1];\n    var queryParams;\n\n    if (possibleQueryParams && possibleQueryParams.hasOwnProperty('queryParams')) {\n      // SAFETY: this cast is safe because we have just checked whether\n      // `possibleQueryParams` -- defined as the last item in args -- both exists\n      // and has the property `queryParams`. If either of these invariants change,\n      // ***this is unsafe and should be changed***.\n      queryParams = args.pop().queryParams;\n    } else {\n      queryParams = {};\n    } // UNSAFE: these are simply assumed as the existing behavior of the system.\n    // However, this could break if upstream refactors change it, and the types\n    // here would not be able to tell us; we would lie to everything downstream.\n\n\n    var routeName = args.shift();\n    var models = args;\n    return {\n      routeName,\n      models,\n      queryParams\n    };\n  }\n\n  function getActiveTargetName(router) {\n    var routeInfos = router.activeTransition ? router.activeTransition[_router_js.STATE_SYMBOL].routeInfos : router.state.routeInfos;\n    return routeInfos[routeInfos.length - 1].name;\n  }\n\n  function stashParamNames(router, routeInfos) {\n    if (routeInfos['_namesStashed']) {\n      return;\n    } // This helper exists because router.js/route-recognizer.js awkwardly\n    // keeps separate a routeInfo's list of parameter names depending\n    // on whether a URL transition or named transition is happening.\n    // Hopefully we can remove this in the future.\n\n\n    var targetRouteName = routeInfos[routeInfos.length - 1].name;\n\n    var recogHandlers = router._routerMicrolib.recognizer.handlersFor(targetRouteName);\n\n    var dynamicParent;\n\n    for (var i = 0; i < routeInfos.length; ++i) {\n      var routeInfo = routeInfos[i];\n      var names = recogHandlers[i].names;\n\n      if (names.length) {\n        dynamicParent = routeInfo;\n      }\n\n      routeInfo['_names'] = names;\n      var route = routeInfo.route;\n\n      route._stashNames(routeInfo, dynamicParent);\n    }\n\n    routeInfos['_namesStashed'] = true;\n  }\n\n  function _calculateCacheValuePrefix(prefix, part) {\n    // calculates the dot separated sections from prefix that are also\n    // at the start of part - which gives us the route name\n    // given : prefix = site.article.comments, part = site.article.id\n    //      - returns: site.article (use get(values[site.article], 'id') to get the dynamic part - used below)\n    // given : prefix = site.article, part = site.article.id\n    //      - returns: site.article. (use get(values[site.article], 'id') to get the dynamic part - used below)\n    var prefixParts = prefix.split('.');\n    var currPrefix = '';\n\n    for (var i = 0; i < prefixParts.length; i++) {\n      var currPart = prefixParts.slice(0, i + 1).join('.');\n\n      if (part.indexOf(currPart) !== 0) {\n        break;\n      }\n\n      currPrefix = currPart;\n    }\n\n    return currPrefix;\n  }\n  /*\n    Stolen from Controller\n  */\n\n\n  function calculateCacheKey(prefix, parts = [], values) {\n    var suffixes = '';\n\n    for (var i = 0; i < parts.length; ++i) {\n      var part = parts[i];\n\n      var cacheValuePrefix = _calculateCacheValuePrefix(prefix, part);\n\n      var value = void 0;\n\n      if (values) {\n        if (cacheValuePrefix && cacheValuePrefix in values) {\n          var partRemovedPrefix = part.indexOf(cacheValuePrefix) === 0 ? part.substr(cacheValuePrefix.length + 1) : part;\n          value = (0, _metal.get)(values[cacheValuePrefix], partRemovedPrefix);\n        } else {\n          value = (0, _metal.get)(values, part);\n        }\n      }\n\n      suffixes += `::${part}:${value}`;\n    }\n\n    return prefix + suffixes.replace(ALL_PERIODS_REGEX, '-');\n  }\n  /*\n    Controller-defined query parameters can come in three shapes:\n  \n    Array\n      queryParams: ['foo', 'bar']\n    Array of simple objects where value is an alias\n      queryParams: [\n        {\n          'foo': 'rename_foo_to_this'\n        },\n        {\n          'bar': 'call_bar_this_instead'\n        }\n      ]\n    Array of fully defined objects\n      queryParams: [\n        {\n          'foo': {\n            as: 'rename_foo_to_this'\n          },\n        }\n        {\n          'bar': {\n            as: 'call_bar_this_instead',\n            scope: 'controller'\n          }\n        }\n      ]\n  \n    This helper normalizes all three possible styles into the\n    'Array of fully defined objects' style.\n  */\n\n\n  function normalizeControllerQueryParams(queryParams) {\n    var qpMap = {};\n\n    for (var i = 0; i < queryParams.length; ++i) {\n      accumulateQueryParamDescriptors(queryParams[i], qpMap);\n    }\n\n    return qpMap;\n  }\n\n  function accumulateQueryParamDescriptors(_desc, accum) {\n    var desc = _desc;\n    var tmp;\n\n    if (typeof desc === 'string') {\n      tmp = {};\n      tmp[desc] = {\n        as: null\n      };\n      desc = tmp;\n    }\n\n    for (var key in desc) {\n      if (!desc.hasOwnProperty(key)) {\n        return;\n      }\n\n      var singleDesc = desc[key];\n\n      if (typeof singleDesc === 'string') {\n        singleDesc = {\n          as: singleDesc\n        };\n      }\n\n      tmp = accum[key] || {\n        as: null,\n        scope: 'model'\n      };\n      (0, _polyfills.assign)(tmp, singleDesc);\n      accum[key] = tmp;\n    }\n  }\n  /*\n    Check if a routeName resembles a url instead\n  \n    @private\n  */\n\n\n  function resemblesURL(str) {\n    return typeof str === 'string' && (str === '' || str[0] === '/');\n  }\n  /*\n    Returns an arguments array where the route name arg is prefixed based on the mount point\n  \n    @private\n  */\n\n\n  function prefixRouteNameArg(route, args) {\n    var routeName = args[0];\n    var owner = (0, _owner.getOwner)(route);\n    var prefix = owner.mountPoint; // only alter the routeName if it's actually referencing a route.\n\n    if (owner.routable && typeof routeName === 'string') {\n      if (resemblesURL(routeName)) {\n        throw new _error.default('Programmatic transitions by URL cannot be used within an Engine. Please use the route name instead.');\n      } else {\n        routeName = `${prefix}.${routeName}`;\n        args[0] = routeName;\n      }\n    }\n\n    return args;\n  }\n\n  function shallowEqual(a, b) {\n    var k;\n    var aCount = 0;\n    var bCount = 0;\n\n    for (k in a) {\n      if (a.hasOwnProperty(k)) {\n        if (a[k] !== b[k]) {\n          return false;\n        }\n\n        aCount++;\n      }\n    }\n\n    for (k in b) {\n      if (b.hasOwnProperty(k)) {\n        bCount++;\n      }\n    }\n\n    return aCount === bCount;\n  }\n});","define(\"@ember/-internals/runtime/index\", [\"exports\", \"@ember/-internals/runtime/lib/system/object\", \"@ember/-internals/runtime/lib/mixins/registry_proxy\", \"@ember/-internals/runtime/lib/mixins/container_proxy\", \"@ember/-internals/runtime/lib/copy\", \"@ember/-internals/runtime/lib/compare\", \"@ember/-internals/runtime/lib/is-equal\", \"@ember/-internals/runtime/lib/mixins/array\", \"@ember/-internals/runtime/lib/mixins/comparable\", \"@ember/-internals/runtime/lib/system/namespace\", \"@ember/-internals/runtime/lib/system/array_proxy\", \"@ember/-internals/runtime/lib/system/object_proxy\", \"@ember/-internals/runtime/lib/system/core_object\", \"@ember/-internals/runtime/lib/mixins/action_handler\", \"@ember/-internals/runtime/lib/mixins/copyable\", \"@ember/-internals/runtime/lib/mixins/enumerable\", \"@ember/-internals/runtime/lib/mixins/-proxy\", \"@ember/-internals/runtime/lib/mixins/observable\", \"@ember/-internals/runtime/lib/mixins/mutable_enumerable\", \"@ember/-internals/runtime/lib/mixins/target_action_support\", \"@ember/-internals/runtime/lib/mixins/evented\", \"@ember/-internals/runtime/lib/mixins/promise_proxy\", \"@ember/-internals/runtime/lib/ext/rsvp\", \"@ember/-internals/runtime/lib/type-of\", \"@ember/-internals/runtime/lib/ext/function\"], function (_exports, _object, _registry_proxy, _container_proxy, _copy, _compare, _isEqual, _array, _comparable, _namespace, _array_proxy, _object_proxy, _core_object, _action_handler, _copyable, _enumerable, _proxy, _observable, _mutable_enumerable, _target_action_support, _evented, _promise_proxy, _rsvp, _typeOf, _function) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"Object\", {\n    enumerable: true,\n    get: function () {\n      return _object.default;\n    }\n  });\n  Object.defineProperty(_exports, \"FrameworkObject\", {\n    enumerable: true,\n    get: function () {\n      return _object.FrameworkObject;\n    }\n  });\n  Object.defineProperty(_exports, \"RegistryProxyMixin\", {\n    enumerable: true,\n    get: function () {\n      return _registry_proxy.default;\n    }\n  });\n  Object.defineProperty(_exports, \"ContainerProxyMixin\", {\n    enumerable: true,\n    get: function () {\n      return _container_proxy.default;\n    }\n  });\n  Object.defineProperty(_exports, \"copy\", {\n    enumerable: true,\n    get: function () {\n      return _copy.default;\n    }\n  });\n  Object.defineProperty(_exports, \"compare\", {\n    enumerable: true,\n    get: function () {\n      return _compare.default;\n    }\n  });\n  Object.defineProperty(_exports, \"isEqual\", {\n    enumerable: true,\n    get: function () {\n      return _isEqual.default;\n    }\n  });\n  Object.defineProperty(_exports, \"Array\", {\n    enumerable: true,\n    get: function () {\n      return _array.default;\n    }\n  });\n  Object.defineProperty(_exports, \"NativeArray\", {\n    enumerable: true,\n    get: function () {\n      return _array.NativeArray;\n    }\n  });\n  Object.defineProperty(_exports, \"A\", {\n    enumerable: true,\n    get: function () {\n      return _array.A;\n    }\n  });\n  Object.defineProperty(_exports, \"MutableArray\", {\n    enumerable: true,\n    get: function () {\n      return _array.MutableArray;\n    }\n  });\n  Object.defineProperty(_exports, \"removeAt\", {\n    enumerable: true,\n    get: function () {\n      return _array.removeAt;\n    }\n  });\n  Object.defineProperty(_exports, \"uniqBy\", {\n    enumerable: true,\n    get: function () {\n      return _array.uniqBy;\n    }\n  });\n  Object.defineProperty(_exports, \"isArray\", {\n    enumerable: true,\n    get: function () {\n      return _array.isArray;\n    }\n  });\n  Object.defineProperty(_exports, \"Comparable\", {\n    enumerable: true,\n    get: function () {\n      return _comparable.default;\n    }\n  });\n  Object.defineProperty(_exports, \"Namespace\", {\n    enumerable: true,\n    get: function () {\n      return _namespace.default;\n    }\n  });\n  Object.defineProperty(_exports, \"ArrayProxy\", {\n    enumerable: true,\n    get: function () {\n      return _array_proxy.default;\n    }\n  });\n  Object.defineProperty(_exports, \"ObjectProxy\", {\n    enumerable: true,\n    get: function () {\n      return _object_proxy.default;\n    }\n  });\n  Object.defineProperty(_exports, \"CoreObject\", {\n    enumerable: true,\n    get: function () {\n      return _core_object.default;\n    }\n  });\n  Object.defineProperty(_exports, \"setFrameworkClass\", {\n    enumerable: true,\n    get: function () {\n      return _core_object.setFrameworkClass;\n    }\n  });\n  Object.defineProperty(_exports, \"ActionHandler\", {\n    enumerable: true,\n    get: function () {\n      return _action_handler.default;\n    }\n  });\n  Object.defineProperty(_exports, \"Copyable\", {\n    enumerable: true,\n    get: function () {\n      return _copyable.default;\n    }\n  });\n  Object.defineProperty(_exports, \"Enumerable\", {\n    enumerable: true,\n    get: function () {\n      return _enumerable.default;\n    }\n  });\n  Object.defineProperty(_exports, \"_ProxyMixin\", {\n    enumerable: true,\n    get: function () {\n      return _proxy.default;\n    }\n  });\n  Object.defineProperty(_exports, \"_contentFor\", {\n    enumerable: true,\n    get: function () {\n      return _proxy.contentFor;\n    }\n  });\n  Object.defineProperty(_exports, \"Observable\", {\n    enumerable: true,\n    get: function () {\n      return _observable.default;\n    }\n  });\n  Object.defineProperty(_exports, \"MutableEnumerable\", {\n    enumerable: true,\n    get: function () {\n      return _mutable_enumerable.default;\n    }\n  });\n  Object.defineProperty(_exports, \"TargetActionSupport\", {\n    enumerable: true,\n    get: function () {\n      return _target_action_support.default;\n    }\n  });\n  Object.defineProperty(_exports, \"Evented\", {\n    enumerable: true,\n    get: function () {\n      return _evented.default;\n    }\n  });\n  Object.defineProperty(_exports, \"PromiseProxyMixin\", {\n    enumerable: true,\n    get: function () {\n      return _promise_proxy.default;\n    }\n  });\n  Object.defineProperty(_exports, \"RSVP\", {\n    enumerable: true,\n    get: function () {\n      return _rsvp.default;\n    }\n  });\n  Object.defineProperty(_exports, \"onerrorDefault\", {\n    enumerable: true,\n    get: function () {\n      return _rsvp.onerrorDefault;\n    }\n  });\n  Object.defineProperty(_exports, \"typeOf\", {\n    enumerable: true,\n    get: function () {\n      return _typeOf.typeOf;\n    }\n  });\n});","define(\"@ember/-internals/runtime/lib/compare\", [\"exports\", \"@ember/-internals/runtime/lib/type-of\", \"@ember/-internals/runtime/lib/mixins/comparable\"], function (_exports, _typeOf, _comparable) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = compare;\n  var TYPE_ORDER = {\n    undefined: 0,\n    null: 1,\n    boolean: 2,\n    number: 3,\n    string: 4,\n    array: 5,\n    object: 6,\n    instance: 7,\n    function: 8,\n    class: 9,\n    date: 10\n  }; //\n  // the spaceship operator\n  //\n  //                      `. ___\n  //                     __,' __`.                _..----....____\n  //         __...--.'``;.   ,.   ;``--..__     .'    ,-._    _.-'\n  //   _..-''-------'   `'   `'   `'     O ``-''._   (,;') _,'\n  // ,'________________                          \\`-._`-','\n  //  `._              ```````````------...___   '-.._'-:\n  //     ```--.._      ,.                     ````--...__\\-.\n  //             `.--. `-` \"INFINITY IS LESS     ____    |  |`\n  //               `. `.   THAN BEYOND\"        ,'`````.  ;  ;`\n  //                 `._`.        __________   `.      \\'__/`\n  //                    `-:._____/______/___/____`.     \\  `\n  //                                |       `._    `.    \\\n  //                                `._________`-.   `.   `.___\n  //                                              SSt  `------'`\n\n  function spaceship(a, b) {\n    var diff = a - b;\n    return (diff > 0) - (diff < 0);\n  }\n  /**\n   @module @ember/utils\n  */\n\n  /**\n   Compares two javascript values and returns:\n  \n    - -1 if the first is smaller than the second,\n    - 0 if both are equal,\n    - 1 if the first is greater than the second.\n  \n    ```javascript\n    import { compare } from '@ember/utils';\n  \n    compare('hello', 'hello');  // 0\n    compare('abc', 'dfg');      // -1\n    compare(2, 1);              // 1\n    ```\n  \n   If the types of the two objects are different precedence occurs in the\n   following order, with types earlier in the list considered `<` types\n   later in the list:\n  \n    - undefined\n    - null\n    - boolean\n    - number\n    - string\n    - array\n    - object\n    - instance\n    - function\n    - class\n    - date\n  \n    ```javascript\n    import { compare } from '@ember/utils';\n  \n    compare('hello', 50);       // 1\n    compare(50, 'hello');       // -1\n    ```\n  \n   @method compare\n   @for @ember/utils\n   @static\n   @param {Object} v First value to compare\n   @param {Object} w Second value to compare\n   @return {Number} -1 if v < w, 0 if v = w and 1 if v > w.\n   @public\n  */\n\n\n  function compare(v, w) {\n    if (v === w) {\n      return 0;\n    }\n\n    var type1 = (0, _typeOf.typeOf)(v);\n    var type2 = (0, _typeOf.typeOf)(w);\n\n    if (type1 === 'instance' && _comparable.default.detect(v) && v.constructor.compare) {\n      return v.constructor.compare(v, w);\n    }\n\n    if (type2 === 'instance' && _comparable.default.detect(w) && w.constructor.compare) {\n      return w.constructor.compare(w, v) * -1;\n    }\n\n    var res = spaceship(TYPE_ORDER[type1], TYPE_ORDER[type2]);\n\n    if (res !== 0) {\n      return res;\n    } // types are equal - so we have to check values now\n\n\n    switch (type1) {\n      case 'boolean':\n      case 'number':\n        return spaceship(v, w);\n\n      case 'string':\n        return spaceship(v.localeCompare(w), 0);\n\n      case 'array':\n        {\n          var vLen = v.length;\n          var wLen = w.length;\n          var len = Math.min(vLen, wLen);\n\n          for (var i = 0; i < len; i++) {\n            var r = compare(v[i], w[i]);\n\n            if (r !== 0) {\n              return r;\n            }\n          } // all elements are equal now\n          // shorter array should be ordered first\n\n\n          return spaceship(vLen, wLen);\n        }\n\n      case 'instance':\n        if (_comparable.default.detect(v)) {\n          return v.compare(v, w);\n        }\n\n        return 0;\n\n      case 'date':\n        return spaceship(v.getTime(), w.getTime());\n\n      default:\n        return 0;\n    }\n  }\n});","define(\"@ember/-internals/runtime/lib/copy\", [\"exports\", \"@ember/debug\", \"@ember/-internals/runtime/lib/system/object\", \"@ember/-internals/runtime/lib/mixins/copyable\"], function (_exports, _debug, _object, _copyable) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = copy;\n\n  /**\n   @module @ember/object\n  */\n  function _copy(obj, deep, seen, copies) {\n    // primitive data types are immutable, just return them.\n    if (typeof obj !== 'object' || obj === null) {\n      return obj;\n    }\n\n    var ret, loc; // avoid cyclical loops\n\n    if (deep && (loc = seen.indexOf(obj)) >= 0) {\n      return copies[loc];\n    }\n\n    if (deep) {\n      seen.push(obj);\n    } // IMPORTANT: this specific test will detect a native array only. Any other\n    // object will need to implement Copyable.\n\n\n    if (Array.isArray(obj)) {\n      ret = obj.slice();\n\n      if (deep) {\n        copies.push(ret);\n        loc = ret.length;\n\n        while (--loc >= 0) {\n          ret[loc] = _copy(ret[loc], deep, seen, copies);\n        }\n      }\n    } else if (_copyable.default.detect(obj)) {\n      ret = obj.copy(deep, seen, copies);\n\n      if (deep) {\n        copies.push(ret);\n      }\n    } else if (obj instanceof Date) {\n      ret = new Date(obj.getTime());\n\n      if (deep) {\n        copies.push(ret);\n      }\n    } else {\n      (true && !(!(obj instanceof _object.default) || _copyable.default.detect(obj)) && (0, _debug.assert)('Cannot clone an EmberObject that does not implement Copyable', !(obj instanceof _object.default) || _copyable.default.detect(obj)));\n      ret = {};\n\n      if (deep) {\n        copies.push(ret);\n      }\n\n      var key;\n\n      for (key in obj) {\n        // support Null prototype\n        if (!Object.prototype.hasOwnProperty.call(obj, key)) {\n          continue;\n        } // Prevents browsers that don't respect non-enumerability from\n        // copying internal Ember properties\n\n\n        if (key.substring(0, 2) === '__') {\n          continue;\n        }\n\n        ret[key] = deep ? _copy(obj[key], deep, seen, copies) : obj[key];\n      }\n    }\n\n    return ret;\n  }\n  /**\n    Creates a shallow copy of the passed object. A deep copy of the object is\n    returned if the optional `deep` argument is `true`.\n  \n    If the passed object implements the `Copyable` interface, then this\n    function will delegate to the object's `copy()` method and return the\n    result. See `Copyable` for further details.\n  \n    For primitive values (which are immutable in JavaScript), the passed object\n    is simply returned.\n  \n    @method copy\n    @deprecated Use 'ember-copy' addon instead\n    @static\n    @for @ember/object/internals\n    @param {Object} obj The object to clone\n    @param {Boolean} [deep=false] If true, a deep copy of the object is made.\n    @return {Object} The copied object\n    @public\n  */\n\n\n  function copy(obj, deep) {\n    (true && !(false) && (0, _debug.deprecate)('Use ember-copy addon instead of copy method and Copyable mixin.', false, {\n      id: 'ember-runtime.deprecate-copy-copyable',\n      until: '4.0.0',\n      url: 'https://emberjs.com/deprecations/v3.x/#toc_ember-runtime-deprecate-copy-copyable'\n    })); // fast paths\n\n    if ('object' !== typeof obj || obj === null) {\n      return obj; // can't copy primitives\n    }\n\n    if (!Array.isArray(obj) && _copyable.default.detect(obj)) {\n      return obj.copy(deep);\n    }\n\n    return _copy(obj, deep, deep ? [] : null, deep ? [] : null);\n  }\n});","define(\"@ember/-internals/runtime/lib/ext/function\", [\"@ember/-internals/environment\", \"@ember/-internals/metal\", \"@ember/debug\", \"@ember/deprecated-features\"], function (_environment, _metal, _debug, _deprecatedFeatures) {\n  \"use strict\";\n\n  /**\n  @module ember\n  */\n  if (_deprecatedFeatures.FUNCTION_PROTOTYPE_EXTENSIONS && _environment.ENV.EXTEND_PROTOTYPES.Function) {\n    Object.defineProperties(Function.prototype, {\n      /**\n        The `property` extension of Javascript's Function prototype is available\n        when `EmberENV.EXTEND_PROTOTYPES` or `EmberENV.EXTEND_PROTOTYPES.Function` is\n        `true`, which is the default.\n         Computed properties allow you to treat a function like a property:\n         ```app/utils/president.js\n        import EmberObject from '@ember/object';\n         export default EmberObject.extend({\n          firstName: '',\n          lastName:  '',\n           fullName: function() {\n            return this.get('firstName') + ' ' + this.get('lastName');\n          }.property() // Call this flag to mark the function as a property\n        });\n        ```\n         ```javascript\n        let president = President.create({\n          firstName: 'Barack',\n          lastName: 'Obama'\n        });\n         president.get('fullName'); // 'Barack Obama'\n        ```\n         Treating a function like a property is useful because they can work with\n        bindings, just like any other property.\n         Many computed properties have dependencies on other properties. For\n        example, in the above example, the `fullName` property depends on\n        `firstName` and `lastName` to determine its value. You can tell Ember\n        about these dependencies like this:\n         ```app/utils/president.js\n        import EmberObject from '@ember/object';\n         export default EmberObject.extend({\n          firstName: '',\n          lastName:  '',\n           fullName: function() {\n            return this.get('firstName') + ' ' + this.get('lastName');\n             // Tell Ember.js that this computed property depends on firstName\n            // and lastName\n          }.property('firstName', 'lastName')\n        });\n        ```\n         Make sure you list these dependencies so Ember knows when to update\n        bindings that connect to a computed property. Changing a dependency\n        will not immediately trigger an update of the computed property, but\n        will instead clear the cache so that it is updated when the next `get`\n        is called on the property.\n         See [ComputedProperty](/ember/release/classes/ComputedProperty), [@ember/object/computed](/ember/release/classes/@ember%2Fobject%2Fcomputed).\n         @method property\n        @for Function\n        @public\n      */\n      property: {\n        configurable: true,\n        enumerable: false,\n        writable: true,\n        value: function () {\n          (true && !(false) && (0, _debug.deprecate)(`Function prototype extensions have been deprecated, please migrate from function(){}.property('bar') to computed('bar', function() {}).`, false, {\n            id: 'function-prototype-extensions.property',\n            until: '4.0.0',\n            url: 'https://deprecations.emberjs.com/v3.x#toc_function-prototype-extensions-property'\n          }));\n          return (0, _metal.computed)(...arguments, this);\n        }\n      },\n\n      /**\n        The `observes` extension of Javascript's Function prototype is available\n        when `EmberENV.EXTEND_PROTOTYPES` or `EmberENV.EXTEND_PROTOTYPES.Function` is\n        true, which is the default.\n         You can observe property changes simply by adding the `observes`\n        call to the end of your method declarations in classes that you write.\n        For example:\n         ```javascript\n        import EmberObject from '@ember/object';\n         EmberObject.extend({\n          valueObserver: function() {\n            // Executes whenever the \"value\" property changes\n          }.observes('value')\n        });\n        ```\n         In the future this method may become asynchronous.\n         See `observer`.\n         @method observes\n        @for Function\n        @public\n      */\n      observes: {\n        configurable: true,\n        enumerable: false,\n        writable: true,\n        value: function () {\n          (true && !(false) && (0, _debug.deprecate)(`Function prototype extensions have been deprecated, please migrate from function(){}.observes('foo') to observer('foo', function() {}).`, false, {\n            id: 'function-prototype-extensions.observes',\n            until: '4.0.0',\n            url: 'https://deprecations.emberjs.com/v3.x#toc_function-prototype-extensions-observes'\n          }));\n          return (0, _metal.observer)(...arguments, this);\n        }\n      },\n\n      /**\n        The `on` extension of Javascript's Function prototype is available\n        when `EmberENV.EXTEND_PROTOTYPES` or `EmberENV.EXTEND_PROTOTYPES.Function` is\n        true, which is the default.\n         You can listen for events simply by adding the `on` call to the end of\n        your method declarations in classes or mixins that you write. For example:\n         ```javascript\n        import Mixin from '@ember/mixin';\n         Mixin.create({\n          doSomethingWithElement: function() {\n            // Executes whenever the \"didInsertElement\" event fires\n          }.on('didInsertElement')\n        });\n        ```\n         See `@ember/object/evented/on`.\n         @method on\n        @for Function\n        @public\n      */\n      on: {\n        configurable: true,\n        enumerable: false,\n        writable: true,\n        value: function () {\n          (true && !(false) && (0, _debug.deprecate)(`Function prototype extensions have been deprecated, please migrate from function(){}.on('foo') to on('foo', function() {}).`, false, {\n            id: 'function-prototype-extensions.on',\n            until: '4.0.0',\n            url: 'https://deprecations.emberjs.com/v3.x#toc_function-prototype-extensions-on'\n          }));\n          return (0, _metal.on)(...arguments, this);\n        }\n      }\n    });\n  }\n});","define(\"@ember/-internals/runtime/lib/ext/rsvp\", [\"exports\", \"rsvp\", \"@ember/runloop\", \"@ember/-internals/error-handling\", \"@ember/debug\"], function (_exports, RSVP, _runloop, _errorHandling, _debug) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.onerrorDefault = onerrorDefault;\n  _exports.default = void 0;\n  RSVP.configure('async', (callback, promise) => {\n    _runloop.backburner.schedule('actions', null, callback, promise);\n  });\n  RSVP.configure('after', cb => {\n    _runloop.backburner.schedule(_runloop._rsvpErrorQueue, null, cb);\n  });\n  RSVP.on('error', onerrorDefault);\n\n  function onerrorDefault(reason) {\n    var error = errorFor(reason);\n\n    if (error) {\n      var overrideDispatch = (0, _errorHandling.getDispatchOverride)();\n\n      if (overrideDispatch) {\n        overrideDispatch(error);\n      } else {\n        throw error;\n      }\n    }\n  }\n\n  function errorFor(reason) {\n    if (!reason) return;\n\n    if (reason.errorThrown) {\n      return unwrapErrorThrown(reason);\n    }\n\n    if (reason.name === 'UnrecognizedURLError') {\n      (true && !(false) && (0, _debug.assert)(`The URL '${reason.message}' did not match any routes in your application`, false));\n      return;\n    }\n\n    if (reason.name === 'TransitionAborted') {\n      return;\n    }\n\n    return reason;\n  }\n\n  function unwrapErrorThrown(reason) {\n    var error = reason.errorThrown;\n\n    if (typeof error === 'string') {\n      error = new Error(error);\n    }\n\n    Object.defineProperty(error, '__reason_with_error_thrown__', {\n      value: reason,\n      enumerable: false\n    });\n    return error;\n  }\n\n  var _default = RSVP;\n  _exports.default = _default;\n});","define(\"@ember/-internals/runtime/lib/is-equal\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = isEqual;\n\n  /**\n   @module @ember/utils\n  */\n\n  /**\n    Compares two objects, returning true if they are equal.\n  \n    ```javascript\n    import { isEqual } from '@ember/utils';\n  \n    isEqual('hello', 'hello');                   // true\n    isEqual(1, 2);                               // false\n    ```\n  \n    `isEqual` is a more specific comparison than a triple equal comparison.\n    It will call the `isEqual` instance method on the objects being\n    compared, allowing finer control over when objects should be considered\n    equal to each other.\n  \n    ```javascript\n    import { isEqual } from '@ember/utils';\n    import EmberObject from '@ember/object';\n  \n    let Person = EmberObject.extend({\n      isEqual(other) { return this.ssn == other.ssn; }\n    });\n  \n    let personA = Person.create({name: 'Muhammad Ali', ssn: '123-45-6789'});\n    let personB = Person.create({name: 'Cassius Clay', ssn: '123-45-6789'});\n  \n    isEqual(personA, personB); // true\n    ```\n  \n    Due to the expense of array comparisons, collections will never be equal to\n    each other even if each of their items are equal to each other.\n  \n    ```javascript\n    import { isEqual } from '@ember/utils';\n  \n    isEqual([4, 2], [4, 2]);                     // false\n    ```\n  \n    @method isEqual\n    @for @ember/utils\n    @static\n    @param {Object} a first object to compare\n    @param {Object} b second object to compare\n    @return {Boolean}\n    @public\n  */\n  function isEqual(a, b) {\n    if (a && typeof a.isEqual === 'function') {\n      return a.isEqual(b);\n    }\n\n    if (a instanceof Date && b instanceof Date) {\n      return a.getTime() === b.getTime();\n    }\n\n    return a === b;\n  }\n});","define(\"@ember/-internals/runtime/lib/mixins/-proxy\", [\"exports\", \"@ember/-internals/meta\", \"@ember/-internals/metal\", \"@ember/-internals/utils\", \"@ember/debug\", \"@glimmer/validator\"], function (_exports, _meta, _metal, _utils, _debug, _validator) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.contentFor = contentFor;\n  _exports.default = void 0;\n\n  /**\n  @module ember\n  */\n  function contentFor(proxy) {\n    var content = (0, _metal.get)(proxy, 'content');\n    (0, _validator.updateTag)((0, _metal.tagForObject)(proxy), (0, _metal.tagForObject)(content));\n    return content;\n  }\n  /**\n    `Ember.ProxyMixin` forwards all properties not defined by the proxy itself\n    to a proxied `content` object.  See ObjectProxy for more details.\n  \n    @class ProxyMixin\n    @namespace Ember\n    @private\n  */\n\n\n  var _default = _metal.Mixin.create({\n    /**\n      The object whose properties will be forwarded.\n       @property content\n      @type {unknown}\n      @default null\n      @public\n    */\n    content: null,\n\n    init() {\n      this._super(...arguments);\n\n      (0, _utils.setProxy)(this);\n      (0, _metal.tagForObject)(this);\n    },\n\n    willDestroy() {\n      this.set('content', null);\n\n      this._super(...arguments);\n    },\n\n    isTruthy: (0, _metal.computed)('content', function () {\n      return Boolean((0, _metal.get)(this, 'content'));\n    }),\n\n    [_metal.CUSTOM_TAG_FOR](key) {\n      var tag = (0, _validator.tagFor)(this, key);\n\n      if (true\n      /* DEBUG */\n      ) {\n        // TODO: Replace this with something more first class for tracking tags in DEBUG\n        tag._propertyKey = key;\n      }\n\n      if (key in this) {\n        if (true\n        /* DEBUG */\n        ) {\n          (0, _utils.setupMandatorySetter)(tag, this, key);\n        }\n\n        return tag;\n      } else {\n        return (0, _validator.combine)([tag, ...(0, _metal.getChainTagsForKey)(this, `content.${key}`)]);\n      }\n    },\n\n    unknownProperty(key) {\n      var content = contentFor(this);\n\n      if (content) {\n        return (0, _metal.get)(content, key);\n      }\n    },\n\n    setUnknownProperty(key, value) {\n      var m = (0, _meta.meta)(this);\n\n      if (m.isInitializing() || m.isPrototypeMeta(this)) {\n        // if marked as prototype or object is initializing then just\n        // defineProperty rather than delegate\n        (0, _metal.defineProperty)(this, key, null, value);\n        return value;\n      }\n\n      var content = contentFor(this);\n      (true && !(content) && (0, _debug.assert)(`Cannot delegate set('${key}', ${value}) to the \\'content\\' property of object proxy ${this}: its 'content' is undefined.`, content));\n      return (0, _metal.set)(content, key, value);\n    }\n\n  });\n\n  _exports.default = _default;\n});","define(\"@ember/-internals/runtime/lib/mixins/action_handler\", [\"exports\", \"@ember/-internals/metal\", \"@ember/debug\"], function (_exports, _metal, _debug) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n  @module ember\n  */\n\n  /**\n    `Ember.ActionHandler` is available on some familiar classes including\n    `Route`, `Component`, and `Controller`.\n    (Internally the mixin is used by `Ember.CoreView`, `Ember.ControllerMixin`,\n    and `Route` and available to the above classes through\n    inheritance.)\n  \n    @class ActionHandler\n    @namespace Ember\n    @private\n  */\n  var ActionHandler = _metal.Mixin.create({\n    mergedProperties: ['actions'],\n\n    /**\n      The collection of functions, keyed by name, available on this\n      `ActionHandler` as action targets.\n       These functions will be invoked when a matching `{{action}}` is triggered\n      from within a template and the application's current route is this route.\n       Actions can also be invoked from other parts of your application\n      via `ActionHandler#send`.\n       The `actions` hash will inherit action handlers from\n      the `actions` hash defined on extended parent classes\n      or mixins rather than just replace the entire hash, e.g.:\n       ```app/mixins/can-display-banner.js\n      import Mixin from '@ember/mixin';\n       export default Mixin.create({\n        actions: {\n          displayBanner(msg) {\n            // ...\n          }\n        }\n      });\n      ```\n       ```app/routes/welcome.js\n      import Route from '@ember/routing/route';\n      import CanDisplayBanner from '../mixins/can-display-banner';\n       export default Route.extend(CanDisplayBanner, {\n        actions: {\n          playMusic() {\n            // ...\n          }\n        }\n      });\n       // `WelcomeRoute`, when active, will be able to respond\n      // to both actions, since the actions hash is merged rather\n      // then replaced when extending mixins / parent classes.\n      this.send('displayBanner');\n      this.send('playMusic');\n      ```\n       Within a Controller, Route or Component's action handler,\n      the value of the `this` context is the Controller, Route or\n      Component object:\n       ```app/routes/song.js\n      import Route from '@ember/routing/route';\n       export default Route.extend({\n        actions: {\n          myAction() {\n            this.controllerFor(\"song\");\n            this.transitionTo(\"other.route\");\n            ...\n          }\n        }\n      });\n      ```\n       It is also possible to call `this._super(...arguments)` from within an\n      action handler if it overrides a handler defined on a parent\n      class or mixin:\n       Take for example the following routes:\n       ```app/mixins/debug-route.js\n      import Mixin from '@ember/mixin';\n       export default Mixin.create({\n        actions: {\n          debugRouteInformation() {\n            console.debug(\"It's a-me, console.debug!\");\n          }\n        }\n      });\n      ```\n       ```app/routes/annoying-debug.js\n      import Route from '@ember/routing/route';\n      import DebugRoute from '../mixins/debug-route';\n       export default Route.extend(DebugRoute, {\n        actions: {\n          debugRouteInformation() {\n            // also call the debugRouteInformation of mixed in DebugRoute\n            this._super(...arguments);\n             // show additional annoyance\n            window.alert(...);\n          }\n        }\n      });\n      ```\n       ## Bubbling\n       By default, an action will stop bubbling once a handler defined\n      on the `actions` hash handles it. To continue bubbling the action,\n      you must return `true` from the handler:\n       ```app/router.js\n      Router.map(function() {\n        this.route(\"album\", function() {\n          this.route(\"song\");\n        });\n      });\n      ```\n       ```app/routes/album.js\n      import Route from '@ember/routing/route';\n       export default Route.extend({\n        actions: {\n          startPlaying: function() {\n          }\n        }\n      });\n      ```\n       ```app/routes/album-song.js\n      import Route from '@ember/routing/route';\n       export default Route.extend({\n        actions: {\n          startPlaying() {\n            // ...\n             if (actionShouldAlsoBeTriggeredOnParentRoute) {\n              return true;\n            }\n          }\n        }\n      });\n      ```\n       @property actions\n      @type Object\n      @default null\n      @public\n    */\n\n    /**\n      Triggers a named action on the `ActionHandler`. Any parameters\n      supplied after the `actionName` string will be passed as arguments\n      to the action target function.\n       If the `ActionHandler` has its `target` property set, actions may\n      bubble to the `target`. Bubbling happens when an `actionName` can\n      not be found in the `ActionHandler`'s `actions` hash or if the\n      action target function returns `true`.\n       Example\n       ```app/routes/welcome.js\n      import Route from '@ember/routing/route';\n       export default Route.extend({\n        actions: {\n          playTheme() {\n            this.send('playMusic', 'theme.mp3');\n          },\n          playMusic(track) {\n            // ...\n          }\n        }\n      });\n      ```\n       @method send\n      @param {String} actionName The action to trigger\n      @param {*} context a context to send with the action\n      @public\n    */\n    send(actionName, ...args) {\n      (true && !(!this.isDestroying && !this.isDestroyed) && (0, _debug.assert)(`Attempted to call .send() with the action '${actionName}' on the destroyed object '${this}'.`, !this.isDestroying && !this.isDestroyed));\n\n      if (this.actions && this.actions[actionName]) {\n        var shouldBubble = this.actions[actionName].apply(this, args) === true;\n\n        if (!shouldBubble) {\n          return;\n        }\n      }\n\n      var target = (0, _metal.get)(this, 'target');\n\n      if (target) {\n        (true && !(typeof target.send === 'function') && (0, _debug.assert)(`The \\`target\\` for ${this} (${target}) does not have a \\`send\\` method`, typeof target.send === 'function'));\n        target.send(...arguments);\n      }\n    }\n\n  });\n\n  var _default = ActionHandler;\n  _exports.default = _default;\n});","define(\"@ember/-internals/runtime/lib/mixins/array\", [\"exports\", \"@ember/-internals/metal\", \"@ember/-internals/utils\", \"@ember/debug\", \"@ember/-internals/runtime/lib/mixins/enumerable\", \"@ember/-internals/runtime/lib/compare\", \"@ember/-internals/environment\", \"@ember/-internals/runtime/lib/mixins/observable\", \"@ember/-internals/runtime/lib/mixins/mutable_enumerable\", \"@ember/-internals/runtime/lib/type-of\"], function (_exports, _metal, _utils, _debug, _enumerable, _compare, _environment, _observable, _mutable_enumerable, _typeOf) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.uniqBy = uniqBy;\n  _exports.removeAt = removeAt;\n  _exports.isArray = isArray;\n  _exports.default = _exports.MutableArray = _exports.NativeArray = _exports.A = void 0;\n\n  /**\n  @module @ember/array\n  */\n  var EMPTY_ARRAY = Object.freeze([]);\n\n  var identityFunction = item => item;\n\n  function uniqBy(array, key = identityFunction) {\n    (true && !(isArray(array)) && (0, _debug.assert)(`first argument passed to \\`uniqBy\\` should be array`, isArray(array)));\n    var ret = A();\n    var seen = new Set();\n    var getter = typeof key === 'function' ? key : item => (0, _metal.get)(item, key);\n    array.forEach(item => {\n      var val = getter(item);\n\n      if (!seen.has(val)) {\n        seen.add(val);\n        ret.push(item);\n      }\n    });\n    return ret;\n  }\n\n  function iter(key, value) {\n    var valueProvided = arguments.length === 2;\n    return valueProvided ? item => value === (0, _metal.get)(item, key) : item => Boolean((0, _metal.get)(item, key));\n  }\n\n  function findIndex(array, predicate, startAt) {\n    var len = array.length;\n\n    for (var index = startAt; index < len; index++) {\n      var item = (0, _metal.objectAt)(array, index);\n\n      if (predicate(item, index, array)) {\n        return index;\n      }\n    }\n\n    return -1;\n  }\n\n  function find(array, callback, target) {\n    var predicate = callback.bind(target);\n    var index = findIndex(array, predicate, 0);\n    return index === -1 ? undefined : (0, _metal.objectAt)(array, index);\n  }\n\n  function any(array, callback, target) {\n    var predicate = callback.bind(target);\n    return findIndex(array, predicate, 0) !== -1;\n  }\n\n  function every(array, callback, target) {\n    var cb = callback.bind(target);\n\n    var predicate = (item, index, array) => !cb(item, index, array);\n\n    return findIndex(array, predicate, 0) === -1;\n  }\n\n  function indexOf(array, val, startAt = 0, withNaNCheck) {\n    var len = array.length;\n\n    if (startAt < 0) {\n      startAt += len;\n    } // SameValueZero comparison (NaN !== NaN)\n\n\n    var predicate = withNaNCheck && val !== val ? item => item !== item : item => item === val;\n    return findIndex(array, predicate, startAt);\n  }\n\n  function removeAt(array, index, len = 1) {\n    (true && !(index > -1 && index < array.length) && (0, _debug.assert)(`\\`removeAt\\` index provided is out of range`, index > -1 && index < array.length));\n    (0, _metal.replace)(array, index, len, EMPTY_ARRAY);\n    return array;\n  }\n\n  function insertAt(array, index, item) {\n    (true && !(index > -1 && index <= array.length) && (0, _debug.assert)(`\\`insertAt\\` index provided is out of range`, index > -1 && index <= array.length));\n    (0, _metal.replace)(array, index, 0, [item]);\n    return item;\n  }\n  /**\n    Returns true if the passed object is an array or Array-like.\n  \n    Objects are considered Array-like if any of the following are true:\n  \n      - the object is a native Array\n      - the object has an objectAt property\n      - the object is an Object, and has a length property\n  \n    Unlike `typeOf` this method returns true even if the passed object is\n    not formally an array but appears to be array-like (i.e. implements `Array`)\n  \n    ```javascript\n    import { isArray } from '@ember/array';\n    import ArrayProxy from '@ember/array/proxy';\n  \n    isArray();                                      // false\n    isArray([]);                                    // true\n    isArray(ArrayProxy.create({ content: [] }));    // true\n    ```\n  \n    @method isArray\n    @static\n    @for @ember/array\n    @param {Object} obj The object to test\n    @return {Boolean} true if the passed object is an array or Array-like\n    @public\n  */\n\n\n  function isArray(_obj) {\n    var obj = _obj;\n\n    if (true\n    /* DEBUG */\n    && _utils.HAS_NATIVE_PROXY && typeof _obj === 'object' && _obj !== null) {\n      var possibleProxyContent = _obj[_metal.PROXY_CONTENT];\n\n      if (possibleProxyContent !== undefined) {\n        obj = possibleProxyContent;\n      }\n    }\n\n    if (!obj || obj.setInterval) {\n      return false;\n    }\n\n    if (Array.isArray(obj) || ArrayMixin.detect(obj)) {\n      return true;\n    }\n\n    var type = (0, _typeOf.typeOf)(obj);\n\n    if ('array' === type) {\n      return true;\n    }\n\n    var length = obj.length;\n\n    if (typeof length === 'number' && length === length && 'object' === type) {\n      return true;\n    }\n\n    return false;\n  }\n  /*\n    This allows us to define computed properties that are not enumerable.\n    The primary reason this is important is that when `NativeArray` is\n    applied to `Array.prototype` we need to ensure that we do not add _any_\n    new enumerable properties.\n  */\n\n\n  function nonEnumerableComputed() {\n    var property = (0, _metal.computed)(...arguments);\n    property.enumerable = false;\n    return property;\n  }\n\n  function mapBy(key) {\n    return this.map(next => (0, _metal.get)(next, key));\n  } // ..........................................................\n  // ARRAY\n  //\n\n  /**\n    This mixin implements Observer-friendly Array-like behavior. It is not a\n    concrete implementation, but it can be used up by other classes that want\n    to appear like arrays.\n  \n    For example, ArrayProxy is a concrete class that can be instantiated to\n    implement array-like behavior. This class uses the Array Mixin by way of\n    the MutableArray mixin, which allows observable changes to be made to the\n    underlying array.\n  \n    This mixin defines methods specifically for collections that provide\n    index-ordered access to their contents. When you are designing code that\n    needs to accept any kind of Array-like object, you should use these methods\n    instead of Array primitives because these will properly notify observers of\n    changes to the array.\n  \n    Although these methods are efficient, they do add a layer of indirection to\n    your application so it is a good idea to use them only when you need the\n    flexibility of using both true JavaScript arrays and \"virtual\" arrays such\n    as controllers and collections.\n  \n    You can use the methods defined in this module to access and modify array\n    contents in an observable-friendly way. You can also be notified whenever\n    the membership of an array changes by using `.observes('myArray.[]')`.\n  \n    To support `EmberArray` in your own class, you must override two\n    primitives to use it: `length()` and `objectAt()`.\n  \n    @class EmberArray\n    @uses Enumerable\n    @since Ember 0.9.0\n    @public\n  */\n\n\n  var ArrayMixin = _metal.Mixin.create(_enumerable.default, {\n    [_utils.EMBER_ARRAY]: true,\n\n    /**\n      __Required.__ You must implement this method to apply this mixin.\n       Your array must support the `length` property. Your replace methods should\n      set this property whenever it changes.\n       @property {Number} length\n      @public\n    */\n\n    /**\n      Returns the object at the given `index`. If the given `index` is negative\n      or is greater or equal than the array length, returns `undefined`.\n       This is one of the primitives you must implement to support `EmberArray`.\n      If your object supports retrieving the value of an array item using `get()`\n      (i.e. `myArray.get(0)`), then you do not need to implement this method\n      yourself.\n       ```javascript\n      let arr = ['a', 'b', 'c', 'd'];\n       arr.objectAt(0);   // 'a'\n      arr.objectAt(3);   // 'd'\n      arr.objectAt(-1);  // undefined\n      arr.objectAt(4);   // undefined\n      arr.objectAt(5);   // undefined\n      ```\n       @method objectAt\n      @param {Number} idx The index of the item to return.\n      @return {*} item at index or undefined\n      @public\n    */\n\n    /**\n      This returns the objects at the specified indexes, using `objectAt`.\n       ```javascript\n      let arr = ['a', 'b', 'c', 'd'];\n       arr.objectsAt([0, 1, 2]);  // ['a', 'b', 'c']\n      arr.objectsAt([2, 3, 4]);  // ['c', 'd', undefined]\n      ```\n       @method objectsAt\n      @param {Array} indexes An array of indexes of items to return.\n      @return {Array}\n      @public\n     */\n    objectsAt(indexes) {\n      return indexes.map(idx => (0, _metal.objectAt)(this, idx));\n    },\n\n    /**\n      This is the handler for the special array content property. If you get\n      this property, it will return this. If you set this property to a new\n      array, it will replace the current content.\n       ```javascript\n      let peopleToMoon = ['Armstrong', 'Aldrin'];\n       peopleToMoon.get('[]'); // ['Armstrong', 'Aldrin']\n       peopleToMoon.set('[]', ['Collins']); // ['Collins']\n      peopleToMoon.get('[]'); // ['Collins']\n      ```\n       @property []\n      @return this\n      @public\n    */\n    '[]': nonEnumerableComputed({\n      get() {\n        return this;\n      },\n\n      set(key, value) {\n        this.replace(0, this.length, value);\n        return this;\n      }\n\n    }),\n\n    /**\n      The first object in the array, or `undefined` if the array is empty.\n       ```javascript\n      let vowels = ['a', 'e', 'i', 'o', 'u'];\n      vowels.firstObject; // 'a'\n       vowels.shiftObject();\n      vowels.firstObject; // 'e'\n       vowels.reverseObjects();\n      vowels.firstObject; // 'u'\n       vowels.clear();\n      vowels.firstObject; // undefined\n      ```\n       @property firstObject\n      @return {Object | undefined} The first object in the array\n      @public\n    */\n    firstObject: nonEnumerableComputed(function () {\n      return (0, _metal.objectAt)(this, 0);\n    }).readOnly(),\n\n    /**\n      The last object in the array, or `undefined` if the array is empty.\n       @property lastObject\n      @return {Object | undefined} The last object in the array\n      @public\n    */\n    lastObject: nonEnumerableComputed(function () {\n      return (0, _metal.objectAt)(this, this.length - 1);\n    }).readOnly(),\n\n    // Add any extra methods to EmberArray that are native to the built-in Array.\n\n    /**\n      Returns a new array that is a slice of the receiver. This implementation\n      uses the observable array methods to retrieve the objects for the new\n      slice.\n       ```javascript\n      let arr = ['red', 'green', 'blue'];\n       arr.slice(0);       // ['red', 'green', 'blue']\n      arr.slice(0, 2);    // ['red', 'green']\n      arr.slice(1, 100);  // ['green', 'blue']\n      ```\n       @method slice\n      @param {Number} beginIndex (Optional) index to begin slicing from.\n      @param {Number} endIndex (Optional) index to end the slice at (but not included).\n      @return {Array} New array with specified slice\n      @public\n    */\n    slice(beginIndex = 0, endIndex) {\n      var ret = A();\n      var length = this.length;\n\n      if (beginIndex < 0) {\n        beginIndex = length + beginIndex;\n      }\n\n      if (endIndex === undefined || endIndex > length) {\n        endIndex = length;\n      } else if (endIndex < 0) {\n        endIndex = length + endIndex;\n      }\n\n      while (beginIndex < endIndex) {\n        ret[ret.length] = (0, _metal.objectAt)(this, beginIndex++);\n      }\n\n      return ret;\n    },\n\n    /**\n      Used to determine the passed object's first occurrence in the array.\n      Returns the index if found, -1 if no match is found.\n       The optional `startAt` argument can be used to pass a starting\n      index to search from, effectively slicing the searchable portion\n      of the array. If it's negative it will add the array length to\n      the startAt value passed in as the index to search from. If less\n      than or equal to `-1 * array.length` the entire array is searched.\n       ```javascript\n      let arr = ['a', 'b', 'c', 'd', 'a'];\n       arr.indexOf('a');       //  0\n      arr.indexOf('z');       // -1\n      arr.indexOf('a', 2);    //  4\n      arr.indexOf('a', -1);   //  4, equivalent to indexOf('a', 4)\n      arr.indexOf('a', -100); //  0, searches entire array\n      arr.indexOf('b', 3);    // -1\n      arr.indexOf('a', 100);  // -1\n       let people = [{ name: 'Zoey' }, { name: 'Bob' }]\n      let newPerson = { name: 'Tom' };\n      people = [newPerson, ...people, newPerson];\n       people.indexOf(newPerson);     //  0\n      people.indexOf(newPerson, 1);  //  3\n      people.indexOf(newPerson, -4); //  0\n      people.indexOf(newPerson, 10); // -1\n      ```\n       @method indexOf\n      @param {Object} object the item to search for\n      @param {Number} startAt optional starting location to search, default 0\n      @return {Number} index or -1 if not found\n      @public\n    */\n    indexOf(object, startAt) {\n      return indexOf(this, object, startAt, false);\n    },\n\n    /**\n      Returns the index of the given `object`'s last occurrence.\n       - If no `startAt` argument is given, the search starts from\n      the last position.\n      - If it's greater than or equal to the length of the array,\n      the search starts from the last position.\n      - If it's negative, it is taken as the offset from the end\n      of the array i.e. `startAt + array.length`.\n      - If it's any other positive number, will search backwards\n      from that index of the array.\n       Returns -1 if no match is found.\n       ```javascript\n      let arr = ['a', 'b', 'c', 'd', 'a'];\n       arr.lastIndexOf('a');       //  4\n      arr.lastIndexOf('z');       // -1\n      arr.lastIndexOf('a', 2);    //  0\n      arr.lastIndexOf('a', -1);   //  4\n      arr.lastIndexOf('a', -3);   //  0\n      arr.lastIndexOf('b', 3);    //  1\n      arr.lastIndexOf('a', 100);  //  4\n      ```\n       @method lastIndexOf\n      @param {Object} object the item to search for\n      @param {Number} startAt optional starting location to search from\n      backwards, defaults to `(array.length - 1)`\n      @return {Number} The last index of the `object` in the array or -1\n      if not found\n      @public\n    */\n    lastIndexOf(object, startAt) {\n      var len = this.length;\n\n      if (startAt === undefined || startAt >= len) {\n        startAt = len - 1;\n      }\n\n      if (startAt < 0) {\n        startAt += len;\n      }\n\n      for (var idx = startAt; idx >= 0; idx--) {\n        if ((0, _metal.objectAt)(this, idx) === object) {\n          return idx;\n        }\n      }\n\n      return -1;\n    },\n\n    // ..........................................................\n    // ARRAY OBSERVERS\n    //\n\n    /**\n      Adds an array observer to the receiving array. The array observer object\n      normally must implement two methods:\n       * `willChange(observedObj, start, removeCount, addCount)` - This method will be\n        called just before the array is modified.\n      * `didChange(observedObj, start, removeCount, addCount)` - This method will be\n        called just after the array is modified.\n       Both callbacks will be passed the observed object, starting index of the\n      change as well as a count of the items to be removed and added. You can use\n      these callbacks to optionally inspect the array during the change, clear\n      caches, or do any other bookkeeping necessary.\n       In addition to passing a target, you can also include an options hash\n      which you can use to override the method names that will be invoked on the\n      target.\n       @method addArrayObserver\n      @param {Object} target The observer object.\n      @param {Object} opts Optional hash of configuration options including\n        `willChange` and `didChange` option.\n      @return {EmberArray} receiver\n      @public\n      @example\n          import Service from '@ember/service';\n           export default Service.extend({\n            data: Ember.A(),\n             init() {\n              this._super(...arguments);\n               this.data.addArrayObserver(this, {\n                willChange: 'dataWillChange',\n                didChange: 'dataDidChange'\n              });\n            },\n             dataWillChange(array, start, removeCount, addCount) {\n              console.log('array will change', array, start, removeCount, addCount);\n            },\n             dataDidChange(array, start, removeCount, addCount) {\n              console.log('array did change', array, start, removeCount, addCount);\n            }\n          });\n    */\n    addArrayObserver(target, opts) {\n      return (0, _metal.addArrayObserver)(this, target, opts);\n    },\n\n    /**\n      Removes an array observer from the object if the observer is current\n      registered. Calling this method multiple times with the same object will\n      have no effect.\n       @method removeArrayObserver\n      @param {Object} target The object observing the array.\n      @param {Object} opts Optional hash of configuration options including\n        `willChange` and `didChange` option.\n      @return {EmberArray} receiver\n      @public\n    */\n    removeArrayObserver(target, opts) {\n      return (0, _metal.removeArrayObserver)(this, target, opts);\n    },\n\n    /**\n      Becomes true whenever the array currently has observers watching changes\n      on the array.\n       ```javascript\n      let arr = [1, 2, 3, 4, 5];\n      arr.hasArrayObservers; // false\n       arr.addArrayObserver(this, {\n        willChange() {\n          console.log('willChange');\n        }\n      });\n      arr.hasArrayObservers; // true\n      ```\n       @property {Boolean} hasArrayObservers\n      @public\n    */\n    hasArrayObservers: (0, _metal.nativeDescDecorator)({\n      configurable: true,\n      enumerable: false,\n\n      get() {\n        return (0, _metal.hasListeners)(this, '@array:change') || (0, _metal.hasListeners)(this, '@array:before');\n      }\n\n    }),\n\n    /**\n      If you are implementing an object that supports `EmberArray`, call this\n      method just before the array content changes to notify any observers and\n      invalidate any related properties. Pass the starting index of the change\n      as well as a delta of the amounts to change.\n       ```app/components/show-post.js\n      import Component from '@ember/component';\n      import EmberObject from '@ember/object';\n       const Post = EmberObject.extend({\n        body: '',\n        save() {}\n      })\n       export default Component.extend({\n        attemptsToModify: 0,\n        successfulModifications: 0,\n        posts: null,\n         init() {\n          this._super(...arguments);\n           this.posts = [1, 2, 3].map(i => Post.create({ body: i }));\n          this.posts.addArrayObserver(this, {\n            willChange() {\n              this.incrementProperty('attemptsToModify');\n            },\n            didChange() {\n              this.incrementProperty('successfulModifications');\n            }\n          });\n        },\n         actions: {\n          editPost(post, newContent) {\n            let oldContent = post.body,\n                postIndex = this.posts.indexOf(post);\n             this.posts.arrayContentWillChange(postIndex, 0, 0); // attemptsToModify = 1\n            post.set('body', newContent);\n             post.save()\n              .then(response => {\n                this.posts.arrayContentDidChange(postIndex, 0, 0); // successfulModifications = 1\n              })\n              .catch(error => {\n                post.set('body', oldContent);\n              })\n          }\n        }\n      });\n      ```\n       @method arrayContentWillChange\n      @param {Number} startIdx The starting index in the array that will change.\n      @param {Number} removeAmt The number of items that will be removed. If you\n        pass `null` assumes 0\n      @param {Number} addAmt The number of items that will be added. If you\n        pass `null` assumes 0.\n      @return {EmberArray} receiver\n      @public\n    */\n    arrayContentWillChange(startIdx, removeAmt, addAmt) {\n      return (0, _metal.arrayContentWillChange)(this, startIdx, removeAmt, addAmt);\n    },\n\n    /**\n      If you are implementing an object that supports `EmberArray`, call this\n      method just after the array content changes to notify any observers and\n      invalidate any related properties. Pass the starting index of the change\n      as well as a delta of the amounts to change.\n       ```javascript\n      let arr = [1, 2, 3, 4, 5];\n       arr.copyWithin(-2); // [1, 2, 3, 1, 2]\n      // arr.lastObject = 5\n      arr.arrayContentDidChange(3, 2, 2);\n      // arr.lastObject = 2\n      ```\n       @method arrayContentDidChange\n      @param {Number} startIdx The starting index in the array that did change.\n      @param {Number} removeAmt The number of items that were removed. If you\n        pass `null` assumes 0\n      @param {Number} addAmt The number of items that were added. If you\n        pass `null` assumes 0.\n      @return {EmberArray} receiver\n      @public\n    */\n    arrayContentDidChange(startIdx, removeAmt, addAmt) {\n      return (0, _metal.arrayContentDidChange)(this, startIdx, removeAmt, addAmt);\n    },\n\n    /**\n      Iterates through the array, calling the passed function on each\n      item. This method corresponds to the `forEach()` method defined in\n      JavaScript 1.6.\n       The callback method you provide should have the following signature (all\n      parameters are optional):\n       ```javascript\n      function(item, index, array);\n      ```\n       - `item` is the current item in the iteration.\n      - `index` is the current index in the iteration.\n      - `array` is the array itself.\n       Note that in addition to a callback, you can also pass an optional target\n      object that will be set as `this` on the context. This is a good way\n      to give your iterator function access to the current object.\n       Example Usage:\n       ```javascript\n      let foods = [\n        { name: 'apple', eaten: false },\n        { name: 'banana', eaten: false },\n        { name: 'carrot', eaten: false }\n      ];\n       foods.forEach((food) => food.eaten = true);\n       let output = '';\n      foods.forEach((item, index, array) =>\n        output += `${index + 1}/${array.length} ${item.name}\\n`;\n      );\n      console.log(output);\n      // 1/3 apple\n      // 2/3 banana\n      // 3/3 carrot\n      ```\n       @method forEach\n      @param {Function} callback The callback to execute\n      @param {Object} [target] The target object to use\n      @return {Object} receiver\n      @public\n    */\n    forEach(callback, target = null) {\n      (true && !(typeof callback === 'function') && (0, _debug.assert)('`forEach` expects a function as first argument.', typeof callback === 'function'));\n      var length = this.length;\n\n      for (var index = 0; index < length; index++) {\n        var item = this.objectAt(index);\n        callback.call(target, item, index, this);\n      }\n\n      return this;\n    },\n\n    /**\n      Alias for `mapBy`.\n       Returns the value of the named\n      property on all items in the enumeration.\n       ```javascript\n      let people = [{name: 'Joe'}, {name: 'Matt'}];\n       people.getEach('name');\n      // ['Joe', 'Matt'];\n       people.getEach('nonexistentProperty');\n      // [undefined, undefined];\n      ```\n       @method getEach\n      @param {String} key name of the property\n      @return {Array} The mapped array.\n      @public\n    */\n    getEach: mapBy,\n\n    /**\n      Sets the value on the named property for each member. This is more\n      ergonomic than using other methods defined on this helper. If the object\n      implements Observable, the value will be changed to `set(),` otherwise\n      it will be set directly. `null` objects are skipped.\n       ```javascript\n      let people = [{name: 'Joe'}, {name: 'Matt'}];\n       people.setEach('zipCode', '10011');\n      // [{name: 'Joe', zipCode: '10011'}, {name: 'Matt', zipCode: '10011'}];\n      ```\n       @method setEach\n      @param {String} key The key to set\n      @param {Object} value The object to set\n      @return {Object} receiver\n      @public\n    */\n    setEach(key, value) {\n      return this.forEach(item => (0, _metal.set)(item, key, value));\n    },\n\n    /**\n      Maps all of the items in the enumeration to another value, returning\n      a new array. This method corresponds to `map()` defined in JavaScript 1.6.\n       The callback method you provide should have the following signature (all\n      parameters are optional):\n       ```javascript\n      function(item, index, array);\n      let arr = [1, 2, 3, 4, 5, 6];\n       arr.map(element => element * element);\n      // [1, 4, 9, 16, 25, 36];\n       arr.map((element, index) => element + index);\n      // [1, 3, 5, 7, 9, 11];\n      ```\n       - `item` is the current item in the iteration.\n      - `index` is the current index in the iteration.\n      - `array` is the array itself.\n       It should return the mapped value.\n       Note that in addition to a callback, you can also pass an optional target\n      object that will be set as `this` on the context. This is a good way\n      to give your iterator function access to the current object.\n       @method map\n      @param {Function} callback The callback to execute\n      @param {Object} [target] The target object to use\n      @return {Array} The mapped array.\n      @public\n    */\n    map(callback, target = null) {\n      (true && !(typeof callback === 'function') && (0, _debug.assert)('`map` expects a function as first argument.', typeof callback === 'function'));\n      var ret = A();\n      this.forEach((x, idx, i) => ret[idx] = callback.call(target, x, idx, i));\n      return ret;\n    },\n\n    /**\n      Similar to map, this specialized function returns the value of the named\n      property on all items in the enumeration.\n       ```javascript\n      let people = [{name: 'Joe'}, {name: 'Matt'}];\n       people.mapBy('name');\n      // ['Joe', 'Matt'];\n       people.mapBy('unknownProperty');\n      // [undefined, undefined];\n      ```\n       @method mapBy\n      @param {String} key name of the property\n      @return {Array} The mapped array.\n      @public\n    */\n    mapBy,\n\n    /**\n      Returns a new array with all of the items in the enumeration that the provided\n      callback function returns true for. This method corresponds to [Array.prototype.filter()](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/filter).\n       The callback method should have the following signature:\n       ```javascript\n      function(item, index, array);\n      ```\n       - `item` is the current item in the iteration.\n      - `index` is the current index in the iteration.\n      - `array` is the array itself.\n       All parameters are optional. The function should return `true` to include the item\n      in the results, and `false` otherwise.\n       Example:\n       ```javascript\n      function isAdult(person) {\n        return person.age > 18;\n      };\n       let people = Ember.A([{ name: 'John', age: 14 }, { name: 'Joan', age: 45 }]);\n       people.filter(isAdult); // returns [{ name: 'Joan', age: 45 }];\n      ```\n       Note that in addition to a callback, you can pass an optional target object\n      that will be set as `this` on the context. This is a good way to give your\n      iterator function access to the current object.\n       @method filter\n      @param {Function} callback The callback to execute\n      @param {Object} [target] The target object to use\n      @return {Array} A filtered array.\n      @public\n    */\n    filter(callback, target = null) {\n      (true && !(typeof callback === 'function') && (0, _debug.assert)('`filter` expects a function as first argument.', typeof callback === 'function'));\n      var ret = A();\n      this.forEach((x, idx, i) => {\n        if (callback.call(target, x, idx, i)) {\n          ret.push(x);\n        }\n      });\n      return ret;\n    },\n\n    /**\n      Returns an array with all of the items in the enumeration where the passed\n      function returns false. This method is the inverse of filter().\n       The callback method you provide should have the following signature (all\n      parameters are optional):\n       ```javascript\n      function(item, index, array);\n      ```\n       - *item* is the current item in the iteration.\n      - *index* is the current index in the iteration\n      - *array* is the array itself.\n       It should return a falsey value to include the item in the results.\n       Note that in addition to a callback, you can also pass an optional target\n      object that will be set as \"this\" on the context. This is a good way\n      to give your iterator function access to the current object.\n       Example Usage:\n       ```javascript\n      const food = [\n        { food: 'apple', isFruit: true },\n        { food: 'bread', isFruit: false },\n        { food: 'banana', isFruit: true }\n      ];\n      const nonFruits = food.reject(function(thing) {\n        return thing.isFruit;\n      }); // [{food: 'bread', isFruit: false}]\n      ```\n       @method reject\n      @param {Function} callback The callback to execute\n      @param {Object} [target] The target object to use\n      @return {Array} A rejected array.\n      @public\n    */\n    reject(callback, target = null) {\n      (true && !(typeof callback === 'function') && (0, _debug.assert)('`reject` expects a function as first argument.', typeof callback === 'function'));\n      return this.filter(function () {\n        return !callback.apply(target, arguments);\n      });\n    },\n\n    /**\n      Filters the array by the property and an optional value. If a value is given, it returns\n      the items that have said value for the property. If not, it returns all the items that\n      have a truthy value for the property.\n       Example Usage:\n       ```javascript\n      let things = Ember.A([{ food: 'apple', isFruit: true }, { food: 'beans', isFruit: false }]);\n       things.filterBy('food', 'beans'); // [{ food: 'beans' }]\n      things.filterBy('isFruit'); // [{ food: 'apple' }]\n      ```\n       @method filterBy\n      @param {String} key the property to test\n      @param {*} [value] optional value to test against.\n      @return {Array} filtered array\n      @public\n    */\n    filterBy() {\n      return this.filter(iter(...arguments));\n    },\n\n    /**\n      Returns an array with the items that do not have truthy values for the provided key.\n      You can pass an optional second argument with a target value to reject for the key.\n      Otherwise this will reject objects where the provided property evaluates to false.\n       Example Usage:\n       ```javascript\n        let food = [\n          { name: \"apple\", isFruit: true },\n          { name: \"carrot\", isFruit: false },\n          { name: \"bread\", isFruit: false },\n        ];\n        food.rejectBy('isFruit'); // [{ name: \"carrot\", isFruit: false }, { name: \"bread\", isFruit: false }]\n        food.rejectBy('name', 'carrot'); // [{ name: \"apple\", isFruit: true }}, { name: \"bread\", isFruit: false }]\n      ```\n       @method rejectBy\n      @param {String} key the property to test\n      @param {*} [value] optional value to test against.\n      @return {Array} rejected array\n      @public\n    */\n    rejectBy() {\n      return this.reject(iter(...arguments));\n    },\n\n    /**\n      Returns the first item in the array for which the callback returns true.\n      This method is similar to the `find()` method defined in ECMAScript 2015.\n       The callback method you provide should have the following signature (all\n      parameters are optional):\n       ```javascript\n      function(item, index, array);\n      ```\n       - `item` is the current item in the iteration.\n      - `index` is the current index in the iteration.\n      - `array` is the array itself.\n       It should return the `true` to include the item in the results, `false`\n      otherwise.\n       Note that in addition to a callback, you can also pass an optional target\n      object that will be set as `this` on the context. This is a good way\n      to give your iterator function access to the current object.\n       Example Usage:\n       ```javascript\n      let users = [\n        { id: 1, name: 'Yehuda' },\n        { id: 2, name: 'Tom' },\n        { id: 3, name: 'Melanie' },\n        { id: 4, name: 'Leah' }\n      ];\n       users.find((user) => user.name == 'Tom'); // [{ id: 2, name: 'Tom' }]\n      users.find(({ id }) => id == 3); // [{ id: 3, name: 'Melanie' }]\n      ```\n       @method find\n      @param {Function} callback The callback to execute\n      @param {Object} [target] The target object to use\n      @return {Object} Found item or `undefined`.\n      @public\n    */\n    find(callback, target = null) {\n      (true && !(typeof callback === 'function') && (0, _debug.assert)('`find` expects a function as first argument.', typeof callback === 'function'));\n      return find(this, callback, target);\n    },\n\n    /**\n      Returns the first item with a property matching the passed value. You\n      can pass an optional second argument with the target value. Otherwise\n      this will match any property that evaluates to `true`.\n       This method works much like the more generic `find()` method.\n       Usage Example:\n       ```javascript\n      let users = [\n        { id: 1, name: 'Yehuda', isTom: false },\n        { id: 2, name: 'Tom', isTom: true },\n        { id: 3, name: 'Melanie', isTom: false },\n        { id: 4, name: 'Leah', isTom: false }\n      ];\n       users.findBy('id', 4); // { id: 4, name: 'Leah', isTom: false }\n      users.findBy('name', 'Melanie'); // { id: 3, name: 'Melanie', isTom: false }\n      users.findBy('isTom'); // { id: 2, name: 'Tom', isTom: true }\n      ```\n       @method findBy\n      @param {String} key the property to test\n      @param {String} [value] optional value to test against.\n      @return {Object} found item or `undefined`\n      @public\n    */\n    findBy() {\n      return find(this, iter(...arguments));\n    },\n\n    /**\n      Returns `true` if the passed function returns true for every item in the\n      enumeration. This corresponds with the `Array.prototype.every()` method defined in ES5.\n       The callback method should have the following signature:\n       ```javascript\n      function(item, index, array);\n      ```\n       - `item` is the current item in the iteration.\n      - `index` is the current index in the iteration.\n      - `array` is the array itself.\n       All params are optional. The method should return `true` or `false`.\n       Note that in addition to a callback, you can also pass an optional target\n      object that will be set as `this` on the context. This is a good way\n      to give your iterator function access to the current object.\n       Usage example:\n       ```javascript\n      function isAdult(person) {\n        return person.age > 18;\n      };\n       const people = Ember.A([{ name: 'John', age: 24 }, { name: 'Joan', age: 45 }]);\n      const areAllAdults = people.every(isAdult);\n      ```\n       @method every\n      @param {Function} callback The callback to execute\n      @param {Object} [target] The target object to use\n      @return {Boolean}\n      @public\n    */\n    every(callback, target = null) {\n      (true && !(typeof callback === 'function') && (0, _debug.assert)('`every` expects a function as first argument.', typeof callback === 'function'));\n      return every(this, callback, target);\n    },\n\n    /**\n      Returns `true` if the passed property resolves to the value of the second\n      argument for all items in the array. This method is often simpler/faster\n      than using a callback.\n       Note that like the native `Array.every`, `isEvery` will return true when called\n      on any empty array.\n      ```javascript\n      class Language {\n        constructor(name, isProgrammingLanguage) {\n          this.name = name;\n          this.programmingLanguage = isProgrammingLanguage;\n        }\n      }\n       const compiledLanguages = [\n        new Language('Java', true),\n        new Language('Go', true),\n        new Language('Rust', true)\n      ]\n       const languagesKnownByMe = [\n        new Language('Javascript', true),\n        new Language('English', false),\n        new Language('Ruby', true)\n      ]\n       compiledLanguages.isEvery('programmingLanguage'); // true\n      languagesKnownByMe.isEvery('programmingLanguage'); // false\n      ```\n       @method isEvery\n      @param {String} key the property to test\n      @param {String} [value] optional value to test against. Defaults to `true`\n      @return {Boolean}\n      @since 1.3.0\n      @public\n    */\n    isEvery() {\n      return every(this, iter(...arguments));\n    },\n\n    /**\n      The any() method executes the callback function once for each element\n      present in the array until it finds the one where callback returns a truthy\n      value (i.e. `true`). If such an element is found, any() immediately returns\n      true. Otherwise, any() returns false.\n       ```javascript\n      function(item, index, array);\n      ```\n       - `item` is the current item in the iteration.\n      - `index` is the current index in the iteration.\n      - `array` is the array object itself.\n       Note that in addition to a callback, you can also pass an optional target\n      object that will be set as `this` on the context. It can be a good way\n      to give your iterator function access to an object in cases where an ES6\n      arrow function would not be appropriate.\n       Usage Example:\n       ```javascript\n      let includesManager = people.any(this.findPersonInManagersList, this);\n       let includesStockHolder = people.any(person => {\n        return this.findPersonInStockHoldersList(person)\n      });\n       if (includesManager || includesStockHolder) {\n        Paychecks.addBiggerBonus();\n      }\n      ```\n       @method any\n      @param {Function} callback The callback to execute\n      @param {Object} [target] The target object to use\n      @return {Boolean} `true` if the passed function returns `true` for any item\n      @public\n    */\n    any(callback, target = null) {\n      (true && !(typeof callback === 'function') && (0, _debug.assert)('`any` expects a function as first argument.', typeof callback === 'function'));\n      return any(this, callback, target);\n    },\n\n    /**\n      Returns `true` if the passed property resolves to the value of the second\n      argument for any item in the array. This method is often simpler/faster\n      than using a callback.\n       Example usage:\n       ```javascript\n      const food = [\n        { food: 'apple', isFruit: true },\n        { food: 'bread', isFruit: false },\n        { food: 'banana', isFruit: true }\n      ];\n       food.isAny('isFruit'); // true\n      ```\n       @method isAny\n      @param {String} key the property to test\n      @param {String} [value] optional value to test against. Defaults to `true`\n      @return {Boolean}\n      @since 1.3.0\n      @public\n    */\n    isAny() {\n      return any(this, iter(...arguments));\n    },\n\n    /**\n      This will combine the values of the array into a single value. It\n      is a useful way to collect a summary value from an array. This\n      corresponds to the `reduce()` method defined in JavaScript 1.8.\n       The callback method you provide should have the following signature (all\n      parameters are optional):\n       ```javascript\n      function(previousValue, item, index, array);\n      ```\n       - `previousValue` is the value returned by the last call to the iterator.\n      - `item` is the current item in the iteration.\n      - `index` is the current index in the iteration.\n      - `array` is the array itself.\n       Return the new cumulative value.\n       In addition to the callback you can also pass an `initialValue`. An error\n      will be raised if you do not pass an initial value and the enumerator is\n      empty.\n       Note that unlike the other methods, this method does not allow you to\n      pass a target object to set as this for the callback. It's part of the\n      spec. Sorry.\n       Example Usage:\n       ```javascript\n        let numbers = [1, 2, 3, 4, 5];\n         numbers.reduce(function(summation, current) {\n          return summation + current;\n        }); // 15 (1 + 2 + 3 + 4 + 5)\n         numbers.reduce(function(summation, current) {\n          return summation + current;\n        }, -15); // 0 (-15 + 1 + 2 + 3 + 4 + 5)\n          let binaryValues = [true, false, false];\n         binaryValues.reduce(function(truthValue, current) {\n          return truthValue && current;\n        }); // false (true && false && false)\n      ```\n       @method reduce\n      @param {Function} callback The callback to execute\n      @param {Object} initialValue Initial value for the reduce\n      @return {Object} The reduced value.\n      @public\n    */\n    reduce(callback, initialValue) {\n      (true && !(typeof callback === 'function') && (0, _debug.assert)('`reduce` expects a function as first argument.', typeof callback === 'function'));\n      var ret = initialValue;\n      this.forEach(function (item, i) {\n        ret = callback(ret, item, i, this);\n      }, this);\n      return ret;\n    },\n\n    /**\n      Invokes the named method on every object in the receiver that\n      implements it. This method corresponds to the implementation in\n      Prototype 1.6.\n       ```javascript\n      class Person {\n        name = null;\n         constructor(name) {\n          this.name = name;\n        }\n         greet(prefix='Hello') {\n          return `${prefix} ${this.name}`;\n        }\n      }\n       let people = [new Person('Joe'), new Person('Matt')];\n       people.invoke('greet'); // ['Hello Joe', 'Hello Matt']\n      people.invoke('greet', 'Bonjour'); // ['Bonjour Joe', 'Bonjour Matt']\n      ```\n       @method invoke\n      @param {String} methodName the name of the method\n      @param {Object...} args optional arguments to pass as well.\n      @return {Array} return values from calling invoke.\n      @public\n    */\n    invoke(methodName, ...args) {\n      var ret = A();\n      this.forEach(item => ret.push((0, _utils.tryInvoke)(item, methodName, args)));\n      return ret;\n    },\n\n    /**\n      Simply converts the object into a genuine array. The order is not\n      guaranteed. Corresponds to the method implemented by Prototype.\n       @method toArray\n      @return {Array} the object as an array.\n      @public\n    */\n    toArray() {\n      return this.map(item => item);\n    },\n\n    /**\n      Returns a copy of the array with all `null` and `undefined` elements removed.\n       ```javascript\n      let arr = ['a', null, 'c', undefined];\n      arr.compact();  // ['a', 'c']\n      ```\n       @method compact\n      @return {Array} the array without null and undefined elements.\n      @public\n    */\n    compact() {\n      return this.filter(value => value != null);\n    },\n\n    /**\n      Used to determine if the array contains the passed object.\n      Returns `true` if found, `false` otherwise.\n       The optional `startAt` argument can be used to pass a starting\n      index to search from, effectively slicing the searchable portion\n      of the array. If it's negative it will add the array length to\n      the startAt value passed in as the index to search from. If less\n      than or equal to `-1 * array.length` the entire array is searched.\n       This method has the same behavior of JavaScript's [Array.includes](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/includes).\n       ```javascript\n      [1, 2, 3].includes(2);     // true\n      [1, 2, 3].includes(4);     // false\n      [1, 2, 3].includes(3, 2);  // true\n      [1, 2, 3].includes(3, 3);  // false\n      [1, 2, 3].includes(3, -1); // true\n      [1, 2, 3].includes(1, -1); // false\n      [1, 2, 3].includes(1, -4); // true\n      [1, 2, NaN].includes(NaN); // true\n      ```\n       @method includes\n      @param {Object} object The object to search for.\n      @param {Number} startAt optional starting location to search, default 0\n      @return {Boolean} `true` if object is found in the array.\n      @public\n    */\n    includes(object, startAt) {\n      return indexOf(this, object, startAt, true) !== -1;\n    },\n\n    /**\n      Sorts the array by the keys specified in the argument.\n       You may provide multiple arguments to sort by multiple properties.\n       ```javascript\n     let colors = [\n       { name: 'red', weight: 500 },\n       { name: 'green', weight: 600 },\n       { name: 'blue', weight: 500 }\n      ];\n      colors.sortBy('name');\n     // [{name: 'blue', weight: 500}, {name: 'green', weight: 600}, {name: 'red', weight: 500}]\n      colors.sortBy('weight', 'name');\n     // [{name: 'blue', weight: 500}, {name: 'red', weight: 500}, {name: 'green', weight: 600}]\n     ```\n       @method sortBy\n      @param {String} property name(s) to sort on\n      @return {Array} The sorted array.\n      @since 1.2.0\n      @public\n    */\n    sortBy() {\n      var sortKeys = arguments;\n      return this.toArray().sort((a, b) => {\n        for (var i = 0; i < sortKeys.length; i++) {\n          var key = sortKeys[i];\n          var propA = (0, _metal.get)(a, key);\n          var propB = (0, _metal.get)(b, key); // return 1 or -1 else continue to the next sortKey\n\n          var compareValue = (0, _compare.default)(propA, propB);\n\n          if (compareValue) {\n            return compareValue;\n          }\n        }\n\n        return 0;\n      });\n    },\n\n    /**\n      Returns a new array that contains only unique values. The default\n      implementation returns an array regardless of the receiver type.\n       ```javascript\n      let arr = ['a', 'a', 'b', 'b'];\n      arr.uniq();  // ['a', 'b']\n      ```\n       This only works on primitive data types, e.g. Strings, Numbers, etc.\n       @method uniq\n      @return {EmberArray}\n      @public\n    */\n    uniq() {\n      return uniqBy(this);\n    },\n\n    /**\n      Returns a new array that contains only items containing a unique property value.\n      The default implementation returns an array regardless of the receiver type.\n       ```javascript\n      let arr = [{ value: 'a' }, { value: 'a' }, { value: 'b' }, { value: 'b' }];\n      arr.uniqBy('value');  // [{ value: 'a' }, { value: 'b' }]\n       let arr = [2.2, 2.1, 3.2, 3.3];\n      arr.uniqBy(Math.floor);  // [2.2, 3.2];\n      ```\n       @method uniqBy\n      @param {String,Function} key\n      @return {EmberArray}\n      @public\n    */\n    uniqBy(key) {\n      return uniqBy(this, key);\n    },\n\n    /**\n      Returns a new array that excludes the passed value. The default\n      implementation returns an array regardless of the receiver type.\n      If the receiver does not contain the value it returns the original array.\n       ```javascript\n      let arr = ['a', 'b', 'a', 'c'];\n      arr.without('a');  // ['b', 'c']\n      ```\n       @method without\n      @param {Object} value\n      @return {EmberArray}\n      @public\n    */\n    without(value) {\n      if (!this.includes(value)) {\n        return this; // nothing to do\n      } // SameValueZero comparison (NaN !== NaN)\n\n\n      var predicate = value === value ? item => item !== value : item => item === item;\n      return this.filter(predicate);\n    }\n\n  });\n  /**\n    This mixin defines the API for modifying array-like objects. These methods\n    can be applied only to a collection that keeps its items in an ordered set.\n    It builds upon the Array mixin and adds methods to modify the array.\n    One concrete implementations of this class include ArrayProxy.\n  \n    It is important to use the methods in this class to modify arrays so that\n    changes are observable. This allows the binding system in Ember to function\n    correctly.\n  \n  \n    Note that an Array can change even if it does not implement this mixin.\n    For example, one might implement a SparseArray that cannot be directly\n    modified, but if its underlying enumerable changes, it will change also.\n  \n    @class MutableArray\n    @uses EmberArray\n    @uses MutableEnumerable\n    @public\n  */\n\n\n  var MutableArray = _metal.Mixin.create(ArrayMixin, _mutable_enumerable.default, {\n    /**\n      __Required.__ You must implement this method to apply this mixin.\n       This is one of the primitives you must implement to support `Array`.\n      You should replace amt objects started at idx with the objects in the\n      passed array. You should also call `this.arrayContentDidChange()`\n       Note that this method is expected to validate the type(s) of objects that it expects.\n       @method replace\n      @param {Number} idx Starting index in the array to replace. If\n        idx >= length, then append to the end of the array.\n      @param {Number} amt Number of elements that should be removed from\n        the array, starting at *idx*.\n      @param {EmberArray} objects An array of zero or more objects that should be\n        inserted into the array at *idx*\n      @public\n    */\n\n    /**\n      Remove all elements from the array. This is useful if you\n      want to reuse an existing array without having to recreate it.\n       ```javascript\n      let colors = ['red', 'green', 'blue'];\n       colors.length;  // 3\n      colors.clear(); // []\n      colors.length;  // 0\n      ```\n       @method clear\n      @return {Array} An empty Array.\n      @public\n    */\n    clear() {\n      var len = this.length;\n\n      if (len === 0) {\n        return this;\n      }\n\n      this.replace(0, len, EMPTY_ARRAY);\n      return this;\n    },\n\n    /**\n      This will use the primitive `replace()` method to insert an object at the\n      specified index.\n       ```javascript\n      let colors = ['red', 'green', 'blue'];\n       colors.insertAt(2, 'yellow');  // ['red', 'green', 'yellow', 'blue']\n      colors.insertAt(5, 'orange');  // Error: Index out of range\n      ```\n       @method insertAt\n      @param {Number} idx index of insert the object at.\n      @param {Object} object object to insert\n      @return {EmberArray} receiver\n      @public\n    */\n    insertAt(idx, object) {\n      insertAt(this, idx, object);\n      return this;\n    },\n\n    /**\n      Remove an object at the specified index using the `replace()` primitive\n      method. You can pass either a single index, or a start and a length.\n       If you pass a start and length that is beyond the\n      length this method will throw an assertion.\n       ```javascript\n      let colors = ['red', 'green', 'blue', 'yellow', 'orange'];\n       colors.removeAt(0);     // ['green', 'blue', 'yellow', 'orange']\n      colors.removeAt(2, 2);  // ['green', 'blue']\n      colors.removeAt(4, 2);  // Error: Index out of range\n      ```\n       @method removeAt\n      @param {Number} start index, start of range\n      @param {Number} len length of passing range\n      @return {EmberArray} receiver\n      @public\n    */\n    removeAt(start, len) {\n      return removeAt(this, start, len);\n    },\n\n    /**\n      Push the object onto the end of the array. Works just like `push()` but it\n      is KVO-compliant.\n       ```javascript\n      let colors = ['red', 'green'];\n       colors.pushObject('black');     // ['red', 'green', 'black']\n      colors.pushObject(['yellow']);  // ['red', 'green', ['yellow']]\n      ```\n       @method pushObject\n      @param {*} obj object to push\n      @return object same object passed as a param\n      @public\n    */\n    pushObject(obj) {\n      return insertAt(this, this.length, obj);\n    },\n\n    /**\n      Add the objects in the passed array to the end of the array. Defers\n      notifying observers of the change until all objects are added.\n       ```javascript\n      let colors = ['red'];\n       colors.pushObjects(['yellow', 'orange']);  // ['red', 'yellow', 'orange']\n      ```\n       @method pushObjects\n      @param {EmberArray} objects the objects to add\n      @return {EmberArray} receiver\n      @public\n    */\n    pushObjects(objects) {\n      this.replace(this.length, 0, objects);\n      return this;\n    },\n\n    /**\n      Pop object from array or nil if none are left. Works just like `pop()` but\n      it is KVO-compliant.\n       ```javascript\n      let colors = ['red', 'green', 'blue'];\n       colors.popObject();   // 'blue'\n      console.log(colors);  // ['red', 'green']\n      ```\n       @method popObject\n      @return object\n      @public\n    */\n    popObject() {\n      var len = this.length;\n\n      if (len === 0) {\n        return null;\n      }\n\n      var ret = (0, _metal.objectAt)(this, len - 1);\n      this.removeAt(len - 1, 1);\n      return ret;\n    },\n\n    /**\n      Shift an object from start of array or nil if none are left. Works just\n      like `shift()` but it is KVO-compliant.\n       ```javascript\n      let colors = ['red', 'green', 'blue'];\n       colors.shiftObject();  // 'red'\n      console.log(colors);   // ['green', 'blue']\n      ```\n       @method shiftObject\n      @return object\n      @public\n    */\n    shiftObject() {\n      if (this.length === 0) {\n        return null;\n      }\n\n      var ret = (0, _metal.objectAt)(this, 0);\n      this.removeAt(0);\n      return ret;\n    },\n\n    /**\n      Unshift an object to start of array. Works just like `unshift()` but it is\n      KVO-compliant.\n       ```javascript\n      let colors = ['red'];\n       colors.unshiftObject('yellow');    // ['yellow', 'red']\n      colors.unshiftObject(['black']);   // [['black'], 'yellow', 'red']\n      ```\n       @method unshiftObject\n      @param {*} obj object to unshift\n      @return object same object passed as a param\n      @public\n    */\n    unshiftObject(obj) {\n      return insertAt(this, 0, obj);\n    },\n\n    /**\n      Adds the named objects to the beginning of the array. Defers notifying\n      observers until all objects have been added.\n       ```javascript\n      let colors = ['red'];\n       colors.unshiftObjects(['black', 'white']);   // ['black', 'white', 'red']\n      colors.unshiftObjects('yellow'); // Type Error: 'undefined' is not a function\n      ```\n       @method unshiftObjects\n      @param {Enumberable} objects the objects to add\n      @return {EmberArray} receiver\n      @public\n    */\n    unshiftObjects(objects) {\n      this.replace(0, 0, objects);\n      return this;\n    },\n\n    /**\n      Reverse objects in the array. Works just like `reverse()` but it is\n      KVO-compliant.\n       @method reverseObjects\n      @return {EmberArray} receiver\n       @public\n    */\n    reverseObjects() {\n      var len = this.length;\n\n      if (len === 0) {\n        return this;\n      }\n\n      var objects = this.toArray().reverse();\n      this.replace(0, len, objects);\n      return this;\n    },\n\n    /**\n      Replace all the receiver's content with content of the argument.\n      If argument is an empty array receiver will be cleared.\n       ```javascript\n      let colors = ['red', 'green', 'blue'];\n       colors.setObjects(['black', 'white']);  // ['black', 'white']\n      colors.setObjects([]);                  // []\n      ```\n       @method setObjects\n      @param {EmberArray} objects array whose content will be used for replacing\n          the content of the receiver\n      @return {EmberArray} receiver with the new content\n      @public\n    */\n    setObjects(objects) {\n      if (objects.length === 0) {\n        return this.clear();\n      }\n\n      var len = this.length;\n      this.replace(0, len, objects);\n      return this;\n    },\n\n    /**\n      Remove all occurrences of an object in the array.\n       ```javascript\n      let cities = ['Chicago', 'Berlin', 'Lima', 'Chicago'];\n       cities.removeObject('Chicago');  // ['Berlin', 'Lima']\n      cities.removeObject('Lima');     // ['Berlin']\n      cities.removeObject('Tokyo')     // ['Berlin']\n      ```\n       @method removeObject\n      @param {*} obj object to remove\n      @return {EmberArray} receiver\n      @public\n    */\n    removeObject(obj) {\n      var loc = this.length || 0;\n\n      while (--loc >= 0) {\n        var curObject = (0, _metal.objectAt)(this, loc);\n\n        if (curObject === obj) {\n          this.removeAt(loc);\n        }\n      }\n\n      return this;\n    },\n\n    /**\n      Removes each object in the passed array from the receiver.\n       @method removeObjects\n      @param {EmberArray} objects the objects to remove\n      @return {EmberArray} receiver\n      @public\n    */\n    removeObjects(objects) {\n      (0, _metal.beginPropertyChanges)();\n\n      for (var i = objects.length - 1; i >= 0; i--) {\n        this.removeObject(objects[i]);\n      }\n\n      (0, _metal.endPropertyChanges)();\n      return this;\n    },\n\n    /**\n      Push the object onto the end of the array if it is not already\n      present in the array.\n       ```javascript\n      let cities = ['Chicago', 'Berlin'];\n       cities.addObject('Lima');    // ['Chicago', 'Berlin', 'Lima']\n      cities.addObject('Berlin');  // ['Chicago', 'Berlin', 'Lima']\n      ```\n       @method addObject\n      @param {*} obj object to add, if not already present\n      @return {EmberArray} receiver\n      @public\n    */\n    addObject(obj) {\n      var included = this.includes(obj);\n\n      if (!included) {\n        this.pushObject(obj);\n      }\n\n      return this;\n    },\n\n    /**\n      Adds each object in the passed array to the receiver.\n       @method addObjects\n      @param {EmberArray} objects the objects to add.\n      @return {EmberArray} receiver\n      @public\n    */\n    addObjects(objects) {\n      (0, _metal.beginPropertyChanges)();\n      objects.forEach(obj => this.addObject(obj));\n      (0, _metal.endPropertyChanges)();\n      return this;\n    }\n\n  });\n  /**\n    Creates an `Ember.NativeArray` from an Array-like object.\n    Does not modify the original object's contents. `A()` is not needed if\n    `EmberENV.EXTEND_PROTOTYPES` is `true` (the default value). However,\n    it is recommended that you use `A()` when creating addons for\n    ember or when you can not guarantee that `EmberENV.EXTEND_PROTOTYPES`\n    will be `true`.\n  \n    Example\n  \n    ```app/components/my-component.js\n    import Component from '@ember/component';\n    import { A } from '@ember/array';\n  \n    export default Component.extend({\n      tagName: 'ul',\n      classNames: ['pagination'],\n  \n      init() {\n        this._super(...arguments);\n  \n        if (!this.get('content')) {\n          this.set('content', A());\n          this.set('otherContent', A([1,2,3]));\n        }\n      }\n    });\n    ```\n  \n    @method A\n    @static\n    @for @ember/array\n    @return {Ember.NativeArray}\n    @public\n  */\n  // Add Ember.Array to Array.prototype. Remove methods with native\n  // implementations and supply some more optimized versions of generic methods\n  // because they are so common.\n\n  /**\n  @module ember\n  */\n\n  /**\n    The NativeArray mixin contains the properties needed to make the native\n    Array support MutableArray and all of its dependent APIs. Unless you\n    have `EmberENV.EXTEND_PROTOTYPES` or `EmberENV.EXTEND_PROTOTYPES.Array` set to\n    false, this will be applied automatically. Otherwise you can apply the mixin\n    at anytime by calling `Ember.NativeArray.apply(Array.prototype)`.\n  \n    @class Ember.NativeArray\n    @uses MutableArray\n    @uses Observable\n    @public\n  */\n\n\n  _exports.MutableArray = MutableArray;\n\n  var NativeArray = _metal.Mixin.create(MutableArray, _observable.default, {\n    objectAt(idx) {\n      return this[idx];\n    },\n\n    // primitive for array support.\n    replace(start, deleteCount, items = EMPTY_ARRAY) {\n      (true && !(Array.isArray(items)) && (0, _debug.assert)('The third argument to replace needs to be an array.', Array.isArray(items)));\n      (0, _metal.replaceInNativeArray)(this, start, deleteCount, items);\n      return this;\n    }\n\n  }); // Remove any methods implemented natively so we don't override them\n\n\n  _exports.NativeArray = NativeArray;\n  var ignore = ['length'];\n  NativeArray.keys().forEach(methodName => {\n    if (Array.prototype[methodName]) {\n      ignore.push(methodName);\n    }\n  });\n  _exports.NativeArray = NativeArray = NativeArray.without(...ignore);\n  var A;\n  _exports.A = A;\n\n  if (_environment.ENV.EXTEND_PROTOTYPES.Array) {\n    NativeArray.apply(Array.prototype);\n\n    _exports.A = A = function (arr) {\n      (true && !(!(this instanceof A)) && (0, _debug.assert)('You cannot create an Ember Array with `new A()`, please update to calling A as a function: `A()`', !(this instanceof A)));\n      return arr || [];\n    };\n  } else {\n    _exports.A = A = function (arr) {\n      (true && !(!(this instanceof A)) && (0, _debug.assert)('You cannot create an Ember Array with `new A()`, please update to calling A as a function: `A()`', !(this instanceof A)));\n\n      if (!arr) {\n        arr = [];\n      }\n\n      return ArrayMixin.detect(arr) ? arr : NativeArray.apply(arr);\n    };\n  }\n\n  var _default = ArrayMixin;\n  _exports.default = _default;\n});","define(\"@ember/-internals/runtime/lib/mixins/comparable\", [\"exports\", \"@ember/-internals/metal\"], function (_exports, _metal) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n  @module ember\n  */\n\n  /**\n    Implements some standard methods for comparing objects. Add this mixin to\n    any class you create that can compare its instances.\n  \n    You should implement the `compare()` method.\n  \n    @class Comparable\n    @namespace Ember\n    @since Ember 0.9\n    @private\n  */\n  var _default = _metal.Mixin.create({\n    /**\n      __Required.__ You must implement this method to apply this mixin.\n       Override to return the result of the comparison of the two parameters. The\n      compare method should return:\n       - `-1` if `a < b`\n      - `0` if `a == b`\n      - `1` if `a > b`\n       Default implementation raises an exception.\n       @method compare\n      @param a {Object} the first object to compare\n      @param b {Object} the second object to compare\n      @return {Number} the result of the comparison\n      @private\n    */\n    compare: null\n  });\n\n  _exports.default = _default;\n});","define(\"@ember/-internals/runtime/lib/mixins/container_proxy\", [\"exports\", \"@ember/runloop\", \"@ember/-internals/metal\"], function (_exports, _runloop, _metal) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n  @module ember\n  */\n\n  /**\n    ContainerProxyMixin is used to provide public access to specific\n    container functionality.\n  \n    @class ContainerProxyMixin\n    @private\n  */\n  var containerProxyMixin = {\n    /**\n     The container stores state.\n      @private\n     @property {Ember.Container} __container__\n     */\n    __container__: null,\n\n    /**\n     Returns an object that can be used to provide an owner to a\n     manually created instance.\n      Example:\n      ```\n     import { getOwner } from '@ember/application';\n      let owner = getOwner(this);\n      User.create(\n       owner.ownerInjection(),\n       { username: 'rwjblue' }\n     )\n     ```\n      @public\n     @method ownerInjection\n     @since 2.3.0\n     @return {Object}\n    */\n    ownerInjection() {\n      return this.__container__.ownerInjection();\n    },\n\n    /**\n     Given a fullName return a corresponding instance.\n      The default behavior is for lookup to return a singleton instance.\n     The singleton is scoped to the container, allowing multiple containers\n     to all have their own locally scoped singletons.\n      ```javascript\n     let registry = new Registry();\n     let container = registry.container();\n      registry.register('api:twitter', Twitter);\n      let twitter = container.lookup('api:twitter');\n      twitter instanceof Twitter; // => true\n      // by default the container will return singletons\n     let twitter2 = container.lookup('api:twitter');\n     twitter2 instanceof Twitter; // => true\n      twitter === twitter2; //=> true\n     ```\n      If singletons are not wanted an optional flag can be provided at lookup.\n      ```javascript\n     let registry = new Registry();\n     let container = registry.container();\n      registry.register('api:twitter', Twitter);\n      let twitter = container.lookup('api:twitter', { singleton: false });\n     let twitter2 = container.lookup('api:twitter', { singleton: false });\n      twitter === twitter2; //=> false\n     ```\n      @public\n     @method lookup\n     @param {String} fullName\n     @param {Object} options\n     @return {any}\n     */\n    lookup(fullName, options) {\n      return this.__container__.lookup(fullName, options);\n    },\n\n    destroy() {\n      var container = this.__container__;\n\n      if (container) {\n        (0, _runloop.join)(() => {\n          container.destroy();\n          (0, _runloop.schedule)('destroy', container, 'finalizeDestroy');\n        });\n      }\n\n      this._super();\n    },\n\n    /**\n    Given a fullName return a factory manager.\n     This method returns a manager which can be used for introspection of the\n    factory's class or for the creation of factory instances with initial\n    properties. The manager is an object with the following properties:\n     * `class` - The registered or resolved class.\n    * `create` - A function that will create an instance of the class with\n      any dependencies injected.\n     For example:\n     ```javascript\n    import { getOwner } from '@ember/application';\n     let owner = getOwner(otherInstance);\n    // the owner is commonly the `applicationInstance`, and can be accessed via\n    // an instance initializer.\n     let factory = owner.factoryFor('service:bespoke');\n     factory.class;\n    // The registered or resolved class. For example when used with an Ember-CLI\n    // app, this would be the default export from `app/services/bespoke.js`.\n     let instance = factory.create({\n      someProperty: 'an initial property value'\n    });\n    // Create an instance with any injections and the passed options as\n    // initial properties.\n    ```\n     Any instances created via the factory's `.create()` method *must* be destroyed\n    manually by the caller of `.create()`. Typically, this is done during the creating\n    objects own `destroy` or `willDestroy` methods.\n     @public\n    @method factoryFor\n    @param {String} fullName\n    @param {Object} options\n    @return {FactoryManager}\n    */\n    factoryFor(fullName, options = {}) {\n      return this.__container__.factoryFor(fullName, options);\n    }\n\n  };\n\n  var _default = _metal.Mixin.create(containerProxyMixin);\n\n  _exports.default = _default;\n});","define(\"@ember/-internals/runtime/lib/mixins/copyable\", [\"exports\", \"@ember/-internals/metal\"], function (_exports, _metal) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n  @module ember\n  */\n\n  /**\n    Implements some standard methods for copying an object. Add this mixin to\n    any object you create that can create a copy of itself. This mixin is\n    added automatically to the built-in array.\n  \n    You should generally implement the `copy()` method to return a copy of the\n    receiver.\n  \n    @class Copyable\n    @namespace Ember\n    @since Ember 0.9\n    @deprecated Use 'ember-copy' addon instead\n    @private\n  */\n  var _default = _metal.Mixin.create({\n    /**\n      __Required.__ You must implement this method to apply this mixin.\n       Override to return a copy of the receiver. Default implementation raises\n      an exception.\n       @method copy\n      @param {Boolean} deep if `true`, a deep copy of the object should be made\n      @return {Object} copy of receiver\n      @private\n    */\n    copy: null\n  });\n\n  _exports.default = _default;\n});","define(\"@ember/-internals/runtime/lib/mixins/enumerable\", [\"exports\", \"@ember/-internals/metal\"], function (_exports, _metal) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n  @module @ember/enumerable\n  @private\n  */\n\n  /**\n    The methods in this mixin have been moved to [MutableArray](/ember/release/classes/MutableArray). This mixin has\n    been intentionally preserved to avoid breaking Enumerable.detect checks\n    until the community migrates away from them.\n  \n    @class Enumerable\n    @private\n  */\n  var _default = _metal.Mixin.create();\n\n  _exports.default = _default;\n});","define(\"@ember/-internals/runtime/lib/mixins/evented\", [\"exports\", \"@ember/-internals/metal\"], function (_exports, _metal) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n  @module @ember/object\n  */\n\n  /**\n    This mixin allows for Ember objects to subscribe to and emit events.\n  \n    ```app/utils/person.js\n    import EmberObject from '@ember/object';\n    import Evented from '@ember/object/evented';\n  \n    export default EmberObject.extend(Evented, {\n      greet() {\n        // ...\n        this.trigger('greet');\n      }\n    });\n    ```\n  \n    ```javascript\n    var person = Person.create();\n  \n    person.on('greet', function() {\n      console.log('Our person has greeted');\n    });\n  \n    person.greet();\n  \n    // outputs: 'Our person has greeted'\n    ```\n  \n    You can also chain multiple event subscriptions:\n  \n    ```javascript\n    person.on('greet', function() {\n      console.log('Our person has greeted');\n    }).one('greet', function() {\n      console.log('Offer one-time special');\n    }).off('event', this, forgetThis);\n    ```\n  \n    @class Evented\n    @public\n   */\n  var _default = _metal.Mixin.create({\n    /**\n      Subscribes to a named event with given function.\n       ```javascript\n      person.on('didLoad', function() {\n        // fired once the person has loaded\n      });\n      ```\n       An optional target can be passed in as the 2nd argument that will\n      be set as the \"this\" for the callback. This is a good way to give your\n      function access to the object triggering the event. When the target\n      parameter is used the callback method becomes the third argument.\n       @method on\n      @param {String} name The name of the event\n      @param {Object} [target] The \"this\" binding for the callback\n      @param {Function|String} method A function or the name of a function to be called on `target`\n      @return this\n      @public\n    */\n    on(name, target, method) {\n      (0, _metal.addListener)(this, name, target, method);\n      return this;\n    },\n\n    /**\n      Subscribes a function to a named event and then cancels the subscription\n      after the first time the event is triggered. It is good to use ``one`` when\n      you only care about the first time an event has taken place.\n       This function takes an optional 2nd argument that will become the \"this\"\n      value for the callback. When the target parameter is used the callback method\n      becomes the third argument.\n       @method one\n      @param {String} name The name of the event\n      @param {Object} [target] The \"this\" binding for the callback\n      @param {Function|String} method A function or the name of a function to be called on `target`\n      @return this\n      @public\n    */\n    one(name, target, method) {\n      (0, _metal.addListener)(this, name, target, method, true);\n      return this;\n    },\n\n    /**\n      Triggers a named event for the object. Any additional arguments\n      will be passed as parameters to the functions that are subscribed to the\n      event.\n       ```javascript\n      person.on('didEat', function(food) {\n        console.log('person ate some ' + food);\n      });\n       person.trigger('didEat', 'broccoli');\n       // outputs: person ate some broccoli\n      ```\n      @method trigger\n      @param {String} name The name of the event\n      @param {Object...} args Optional arguments to pass on\n      @public\n    */\n    trigger(name, ...args) {\n      (0, _metal.sendEvent)(this, name, args);\n    },\n\n    /**\n      Cancels subscription for given name, target, and method.\n       @method off\n      @param {String} name The name of the event\n      @param {Object} target The target of the subscription\n      @param {Function|String} method The function or the name of a function of the subscription\n      @return this\n      @public\n    */\n    off(name, target, method) {\n      (0, _metal.removeListener)(this, name, target, method);\n      return this;\n    },\n\n    /**\n      Checks to see if object has any subscriptions for named event.\n       @method has\n      @param {String} name The name of the event\n      @return {Boolean} does the object have a subscription for event\n      @public\n     */\n    has(name) {\n      return (0, _metal.hasListeners)(this, name);\n    }\n\n  });\n\n  _exports.default = _default;\n});","define(\"@ember/-internals/runtime/lib/mixins/mutable_enumerable\", [\"exports\", \"@ember/-internals/runtime/lib/mixins/enumerable\", \"@ember/-internals/metal\"], function (_exports, _enumerable, _metal) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n  @module ember\n  */\n\n  /**\n    The methods in this mixin have been moved to MutableArray. This mixin has\n    been intentionally preserved to avoid breaking MutableEnumerable.detect\n    checks until the community migrates away from them.\n  \n    @class MutableEnumerable\n    @namespace Ember\n    @uses Enumerable\n    @private\n  */\n  var _default = _metal.Mixin.create(_enumerable.default);\n\n  _exports.default = _default;\n});","define(\"@ember/-internals/runtime/lib/mixins/observable\", [\"exports\", \"@ember/-internals/metal\", \"@ember/debug\"], function (_exports, _metal, _debug) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n  @module @ember/object\n  */\n\n  /**\n    ## Overview\n  \n    This mixin provides properties and property observing functionality, core\n    features of the Ember object model.\n  \n    Properties and observers allow one object to observe changes to a\n    property on another object. This is one of the fundamental ways that\n    models, controllers and views communicate with each other in an Ember\n    application.\n  \n    Any object that has this mixin applied can be used in observer\n    operations. That includes `EmberObject` and most objects you will\n    interact with as you write your Ember application.\n  \n    Note that you will not generally apply this mixin to classes yourself,\n    but you will use the features provided by this module frequently, so it\n    is important to understand how to use it.\n  \n    ## Using `get()` and `set()`\n  \n    Because of Ember's support for bindings and observers, you will always\n    access properties using the get method, and set properties using the\n    set method. This allows the observing objects to be notified and\n    computed properties to be handled properly.\n  \n    More documentation about `get` and `set` are below.\n  \n    ## Observing Property Changes\n  \n    You typically observe property changes simply by using the `observer`\n    function in classes that you write.\n  \n    For example:\n  \n    ```javascript\n    import { observer } from '@ember/object';\n    import EmberObject from '@ember/object';\n  \n    EmberObject.extend({\n      valueObserver: observer('value', function(sender, key, value, rev) {\n        // Executes whenever the \"value\" property changes\n        // See the addObserver method for more information about the callback arguments\n      })\n    });\n    ```\n  \n    Although this is the most common way to add an observer, this capability\n    is actually built into the `EmberObject` class on top of two methods\n    defined in this mixin: `addObserver` and `removeObserver`. You can use\n    these two methods to add and remove observers yourself if you need to\n    do so at runtime.\n  \n    To add an observer for a property, call:\n  \n    ```javascript\n    object.addObserver('propertyKey', targetObject, targetAction)\n    ```\n  \n    This will call the `targetAction` method on the `targetObject` whenever\n    the value of the `propertyKey` changes.\n  \n    Note that if `propertyKey` is a computed property, the observer will be\n    called when any of the property dependencies are changed, even if the\n    resulting value of the computed property is unchanged. This is necessary\n    because computed properties are not computed until `get` is called.\n  \n    @class Observable\n    @public\n  */\n  var _default = _metal.Mixin.create({\n    /**\n      Retrieves the value of a property from the object.\n       This method is usually similar to using `object[keyName]` or `object.keyName`,\n      however it supports both computed properties and the unknownProperty\n      handler.\n       Because `get` unifies the syntax for accessing all these kinds\n      of properties, it can make many refactorings easier, such as replacing a\n      simple property with a computed property, or vice versa.\n       ### Computed Properties\n       Computed properties are methods defined with the `property` modifier\n      declared at the end, such as:\n       ```javascript\n      import { computed } from '@ember/object';\n       fullName: computed('firstName', 'lastName', function() {\n        return this.get('firstName') + ' ' + this.get('lastName');\n      })\n      ```\n       When you call `get` on a computed property, the function will be\n      called and the return value will be returned instead of the function\n      itself.\n       ### Unknown Properties\n       Likewise, if you try to call `get` on a property whose value is\n      `undefined`, the `unknownProperty()` method will be called on the object.\n      If this method returns any value other than `undefined`, it will be returned\n      instead. This allows you to implement \"virtual\" properties that are\n      not defined upfront.\n       @method get\n      @param {String} keyName The property to retrieve\n      @return {Object} The property value or undefined.\n      @public\n    */\n    get(keyName) {\n      return (0, _metal.get)(this, keyName);\n    },\n\n    /**\n      To get the values of multiple properties at once, call `getProperties`\n      with a list of strings or an array:\n       ```javascript\n      record.getProperties('firstName', 'lastName', 'zipCode');\n      // { firstName: 'John', lastName: 'Doe', zipCode: '10011' }\n      ```\n       is equivalent to:\n       ```javascript\n      record.getProperties(['firstName', 'lastName', 'zipCode']);\n      // { firstName: 'John', lastName: 'Doe', zipCode: '10011' }\n      ```\n       @method getProperties\n      @param {String...|Array} list of keys to get\n      @return {Object}\n      @public\n    */\n    getProperties(...args) {\n      return (0, _metal.getProperties)(...[this].concat(args));\n    },\n\n    /**\n      Sets the provided key or path to the value.\n       ```javascript\n      record.set(\"key\", value);\n      ```\n       This method is generally very similar to calling `object[\"key\"] = value` or\n      `object.key = value`, except that it provides support for computed\n      properties, the `setUnknownProperty()` method and property observers.\n       ### Computed Properties\n       If you try to set a value on a key that has a computed property handler\n      defined (see the `get()` method for an example), then `set()` will call\n      that method, passing both the value and key instead of simply changing\n      the value itself. This is useful for those times when you need to\n      implement a property that is composed of one or more member\n      properties.\n       ### Unknown Properties\n       If you try to set a value on a key that is undefined in the target\n      object, then the `setUnknownProperty()` handler will be called instead. This\n      gives you an opportunity to implement complex \"virtual\" properties that\n      are not predefined on the object. If `setUnknownProperty()` returns\n      undefined, then `set()` will simply set the value on the object.\n       ### Property Observers\n       In addition to changing the property, `set()` will also register a property\n      change with the object. Unless you have placed this call inside of a\n      `beginPropertyChanges()` and `endPropertyChanges(),` any \"local\" observers\n      (i.e. observer methods declared on the same object), will be called\n      immediately. Any \"remote\" observers (i.e. observer methods declared on\n      another object) will be placed in a queue and called at a later time in a\n      coalesced manner.\n       @method set\n      @param {String} keyName The property to set\n      @param {Object} value The value to set or `null`.\n      @return {Object} The passed value\n      @public\n    */\n    set(keyName, value) {\n      return (0, _metal.set)(this, keyName, value);\n    },\n\n    /**\n      Sets a list of properties at once. These properties are set inside\n      a single `beginPropertyChanges` and `endPropertyChanges` batch, so\n      observers will be buffered.\n       ```javascript\n      record.setProperties({ firstName: 'Charles', lastName: 'Jolley' });\n      ```\n       @method setProperties\n      @param {Object} hash the hash of keys and values to set\n      @return {Object} The passed in hash\n      @public\n    */\n    setProperties(hash) {\n      return (0, _metal.setProperties)(this, hash);\n    },\n\n    /**\n      Begins a grouping of property changes.\n       You can use this method to group property changes so that notifications\n      will not be sent until the changes are finished. If you plan to make a\n      large number of changes to an object at one time, you should call this\n      method at the beginning of the changes to begin deferring change\n      notifications. When you are done making changes, call\n      `endPropertyChanges()` to deliver the deferred change notifications and end\n      deferring.\n       @method beginPropertyChanges\n      @return {Observable}\n      @private\n    */\n    beginPropertyChanges() {\n      (0, _metal.beginPropertyChanges)();\n      return this;\n    },\n\n    /**\n      Ends a grouping of property changes.\n       You can use this method to group property changes so that notifications\n      will not be sent until the changes are finished. If you plan to make a\n      large number of changes to an object at one time, you should call\n      `beginPropertyChanges()` at the beginning of the changes to defer change\n      notifications. When you are done making changes, call this method to\n      deliver the deferred change notifications and end deferring.\n       @method endPropertyChanges\n      @return {Observable}\n      @private\n    */\n    endPropertyChanges() {\n      (0, _metal.endPropertyChanges)();\n      return this;\n    },\n\n    /**\n      Notify the observer system that a property has just changed.\n       Sometimes you need to change a value directly or indirectly without\n      actually calling `get()` or `set()` on it. In this case, you can use this\n      method instead. Calling this method will notify all observers that the\n      property has potentially changed value.\n       @method notifyPropertyChange\n      @param {String} keyName The property key to be notified about.\n      @return {Observable}\n      @public\n    */\n    notifyPropertyChange(keyName) {\n      (0, _metal.notifyPropertyChange)(this, keyName);\n      return this;\n    },\n\n    /**\n      Adds an observer on a property.\n       This is the core method used to register an observer for a property.\n       Once you call this method, any time the key's value is set, your observer\n      will be notified. Note that the observers are triggered any time the\n      value is set, regardless of whether it has actually changed. Your\n      observer should be prepared to handle that.\n       There are two common invocation patterns for `.addObserver()`:\n       - Passing two arguments:\n        - the name of the property to observe (as a string)\n        - the function to invoke (an actual function)\n      - Passing three arguments:\n        - the name of the property to observe (as a string)\n        - the target object (will be used to look up and invoke a\n          function on)\n        - the name of the function to invoke on the target object\n          (as a string).\n       ```app/components/my-component.js\n      import Component from '@ember/component';\n       export default Component.extend({\n        init() {\n          this._super(...arguments);\n           // the following are equivalent:\n           // using three arguments\n          this.addObserver('foo', this, 'fooDidChange');\n           // using two arguments\n          this.addObserver('foo', (...args) => {\n            this.fooDidChange(...args);\n          });\n        },\n         fooDidChange() {\n          // your custom logic code\n        }\n      });\n      ```\n       ### Observer Methods\n       Observer methods have the following signature:\n       ```app/components/my-component.js\n      import Component from '@ember/component';\n       export default Component.extend({\n        init() {\n          this._super(...arguments);\n          this.addObserver('foo', this, 'fooDidChange');\n        },\n         fooDidChange(sender, key, value, rev) {\n          // your code\n        }\n      });\n      ```\n       The `sender` is the object that changed. The `key` is the property that\n      changes. The `value` property is currently reserved and unused. The `rev`\n      is the last property revision of the object when it changed, which you can\n      use to detect if the key value has really changed or not.\n       Usually you will not need the value or revision parameters at\n      the end. In this case, it is common to write observer methods that take\n      only a sender and key value as parameters or, if you aren't interested in\n      any of these values, to write an observer that has no parameters at all.\n       @method addObserver\n      @param {String} key The key to observe\n      @param {Object} target The target object to invoke\n      @param {String|Function} method The method to invoke\n      @param {Boolean} sync Whether the observer is sync or not\n      @return {Observable}\n      @public\n    */\n    addObserver(key, target, method, sync) {\n      (0, _metal.addObserver)(this, key, target, method, sync);\n      return this;\n    },\n\n    /**\n      Remove an observer you have previously registered on this object. Pass\n      the same key, target, and method you passed to `addObserver()` and your\n      target will no longer receive notifications.\n       @method removeObserver\n      @param {String} key The key to observe\n      @param {Object} target The target object to invoke\n      @param {String|Function} method The method to invoke\n      @param {Boolean} sync Whether the observer is async or not\n      @return {Observable}\n      @public\n    */\n    removeObserver(key, target, method, sync) {\n      (0, _metal.removeObserver)(this, key, target, method, sync);\n      return this;\n    },\n\n    /**\n      Returns `true` if the object currently has observers registered for a\n      particular key. You can use this method to potentially defer performing\n      an expensive action until someone begins observing a particular property\n      on the object.\n       @method hasObserverFor\n      @param {String} key Key to check\n      @return {Boolean}\n      @private\n    */\n    hasObserverFor(key) {\n      return (0, _metal.hasListeners)(this, `${key}:change`);\n    },\n\n    /**\n      Retrieves the value of a property, or a default value in the case that the\n      property returns `undefined`.\n       ```javascript\n      person.getWithDefault('lastName', 'Doe');\n      ```\n       @method getWithDefault\n      @param {String} keyName The name of the property to retrieve\n      @param {Object} defaultValue The value to return if the property value is undefined\n      @return {Object} The property value or the defaultValue.\n      @public\n    */\n    getWithDefault(keyName, defaultValue) {\n      return (0, _metal.getWithDefault)(this, keyName, defaultValue);\n    },\n\n    /**\n      Set the value of a property to the current value plus some amount.\n       ```javascript\n      person.incrementProperty('age');\n      team.incrementProperty('score', 2);\n      ```\n       @method incrementProperty\n      @param {String} keyName The name of the property to increment\n      @param {Number} increment The amount to increment by. Defaults to 1\n      @return {Number} The new property value\n      @public\n    */\n    incrementProperty(keyName, increment = 1) {\n      (true && !(!isNaN(parseFloat(increment)) && isFinite(increment)) && (0, _debug.assert)('Must pass a numeric value to incrementProperty', !isNaN(parseFloat(increment)) && isFinite(increment)));\n      return (0, _metal.set)(this, keyName, (parseFloat((0, _metal.get)(this, keyName)) || 0) + increment);\n    },\n\n    /**\n      Set the value of a property to the current value minus some amount.\n       ```javascript\n      player.decrementProperty('lives');\n      orc.decrementProperty('health', 5);\n      ```\n       @method decrementProperty\n      @param {String} keyName The name of the property to decrement\n      @param {Number} decrement The amount to decrement by. Defaults to 1\n      @return {Number} The new property value\n      @public\n    */\n    decrementProperty(keyName, decrement = 1) {\n      (true && !(!isNaN(parseFloat(decrement)) && isFinite(decrement)) && (0, _debug.assert)('Must pass a numeric value to decrementProperty', !isNaN(parseFloat(decrement)) && isFinite(decrement)));\n      return (0, _metal.set)(this, keyName, ((0, _metal.get)(this, keyName) || 0) - decrement);\n    },\n\n    /**\n      Set the value of a boolean property to the opposite of its\n      current value.\n       ```javascript\n      starship.toggleProperty('warpDriveEngaged');\n      ```\n       @method toggleProperty\n      @param {String} keyName The name of the property to toggle\n      @return {Boolean} The new property value\n      @public\n    */\n    toggleProperty(keyName) {\n      return (0, _metal.set)(this, keyName, !(0, _metal.get)(this, keyName));\n    },\n\n    /**\n      Returns the cached value of a computed property, if it exists.\n      This allows you to inspect the value of a computed property\n      without accidentally invoking it if it is intended to be\n      generated lazily.\n       @method cacheFor\n      @param {String} keyName\n      @return {Object} The cached value of the computed property, if any\n      @public\n    */\n    cacheFor(keyName) {\n      return (0, _metal.getCachedValueFor)(this, keyName);\n    }\n\n  });\n\n  _exports.default = _default;\n});","define(\"@ember/-internals/runtime/lib/mixins/promise_proxy\", [\"exports\", \"@ember/-internals/metal\", \"@ember/error\"], function (_exports, _metal, _error) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n    @module @ember/object\n  */\n  function tap(proxy, promise) {\n    (0, _metal.setProperties)(proxy, {\n      isFulfilled: false,\n      isRejected: false\n    });\n    return promise.then(value => {\n      if (!proxy.isDestroyed && !proxy.isDestroying) {\n        (0, _metal.setProperties)(proxy, {\n          content: value,\n          isFulfilled: true\n        });\n      }\n\n      return value;\n    }, reason => {\n      if (!proxy.isDestroyed && !proxy.isDestroying) {\n        (0, _metal.setProperties)(proxy, {\n          reason,\n          isRejected: true\n        });\n      }\n\n      throw reason;\n    }, 'Ember: PromiseProxy');\n  }\n  /**\n    A low level mixin making ObjectProxy promise-aware.\n  \n    ```javascript\n    import { resolve } from 'rsvp';\n    import $ from 'jquery';\n    import ObjectProxy from '@ember/object/proxy';\n    import PromiseProxyMixin from '@ember/object/promise-proxy-mixin';\n  \n    let ObjectPromiseProxy = ObjectProxy.extend(PromiseProxyMixin);\n  \n    let proxy = ObjectPromiseProxy.create({\n      promise: resolve($.getJSON('/some/remote/data.json'))\n    });\n  \n    proxy.then(function(json){\n       // the json\n    }, function(reason) {\n       // the reason why you have no json\n    });\n    ```\n  \n    the proxy has bindable attributes which\n    track the promises life cycle\n  \n    ```javascript\n    proxy.get('isPending')   //=> true\n    proxy.get('isSettled')  //=> false\n    proxy.get('isRejected')  //=> false\n    proxy.get('isFulfilled') //=> false\n    ```\n  \n    When the $.getJSON completes, and the promise is fulfilled\n    with json, the life cycle attributes will update accordingly.\n    Note that $.getJSON doesn't return an ECMA specified promise,\n    it is useful to wrap this with an `RSVP.resolve` so that it behaves\n    as a spec compliant promise.\n  \n    ```javascript\n    proxy.get('isPending')   //=> false\n    proxy.get('isSettled')   //=> true\n    proxy.get('isRejected')  //=> false\n    proxy.get('isFulfilled') //=> true\n    ```\n  \n    As the proxy is an ObjectProxy, and the json now its content,\n    all the json properties will be available directly from the proxy.\n  \n    ```javascript\n    // Assuming the following json:\n    {\n      firstName: 'Stefan',\n      lastName: 'Penner'\n    }\n  \n    // both properties will accessible on the proxy\n    proxy.get('firstName') //=> 'Stefan'\n    proxy.get('lastName')  //=> 'Penner'\n    ```\n  \n    @class PromiseProxyMixin\n    @public\n  */\n\n\n  var _default = _metal.Mixin.create({\n    /**\n      If the proxied promise is rejected this will contain the reason\n      provided.\n       @property reason\n      @default null\n      @public\n    */\n    reason: null,\n\n    /**\n      Once the proxied promise has settled this will become `false`.\n       @property isPending\n      @default true\n      @public\n    */\n    isPending: (0, _metal.computed)('isSettled', function () {\n      return !(0, _metal.get)(this, 'isSettled');\n    }).readOnly(),\n\n    /**\n      Once the proxied promise has settled this will become `true`.\n       @property isSettled\n      @default false\n      @public\n    */\n    isSettled: (0, _metal.computed)('isRejected', 'isFulfilled', function () {\n      return (0, _metal.get)(this, 'isRejected') || (0, _metal.get)(this, 'isFulfilled');\n    }).readOnly(),\n\n    /**\n      Will become `true` if the proxied promise is rejected.\n       @property isRejected\n      @default false\n      @public\n    */\n    isRejected: false,\n\n    /**\n      Will become `true` if the proxied promise is fulfilled.\n       @property isFulfilled\n      @default false\n      @public\n    */\n    isFulfilled: false,\n\n    /**\n      The promise whose fulfillment value is being proxied by this object.\n       This property must be specified upon creation, and should not be\n      changed once created.\n       Example:\n       ```javascript\n      import ObjectProxy from '@ember/object/proxy';\n      import PromiseProxyMixin from '@ember/object/promise-proxy-mixin';\n       ObjectProxy.extend(PromiseProxyMixin).create({\n        promise: <thenable>\n      });\n      ```\n       @property promise\n      @public\n    */\n    promise: (0, _metal.computed)({\n      get() {\n        throw new _error.default(\"PromiseProxy's promise must be set\");\n      },\n\n      set(key, promise) {\n        return tap(this, promise);\n      }\n\n    }),\n\n    /**\n      An alias to the proxied promise's `then`.\n       See RSVP.Promise.then.\n       @method then\n      @param {Function} callback\n      @return {RSVP.Promise}\n      @public\n    */\n    then: promiseAlias('then'),\n\n    /**\n      An alias to the proxied promise's `catch`.\n       See RSVP.Promise.catch.\n       @method catch\n      @param {Function} callback\n      @return {RSVP.Promise}\n      @since 1.3.0\n      @public\n    */\n    catch: promiseAlias('catch'),\n\n    /**\n      An alias to the proxied promise's `finally`.\n       See RSVP.Promise.finally.\n       @method finally\n      @param {Function} callback\n      @return {RSVP.Promise}\n      @since 1.3.0\n      @public\n    */\n    finally: promiseAlias('finally')\n  });\n\n  _exports.default = _default;\n\n  function promiseAlias(name) {\n    return function () {\n      var promise = (0, _metal.get)(this, 'promise');\n      return promise[name](...arguments);\n    };\n  }\n});","define(\"@ember/-internals/runtime/lib/mixins/registry_proxy\", [\"exports\", \"@ember/debug\", \"@ember/-internals/metal\"], function (_exports, _debug, _metal) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n  @module ember\n  */\n\n  /**\n    RegistryProxyMixin is used to provide public access to specific\n    registry functionality.\n  \n    @class RegistryProxyMixin\n    @private\n  */\n  var _default = _metal.Mixin.create({\n    __registry__: null,\n\n    /**\n     Given a fullName return the corresponding factory.\n      @public\n     @method resolveRegistration\n     @param {String} fullName\n     @return {Function} fullName's factory\n     */\n    resolveRegistration(fullName, options) {\n      (true && !(this.__registry__.isValidFullName(fullName)) && (0, _debug.assert)('fullName must be a proper full name', this.__registry__.isValidFullName(fullName)));\n      return this.__registry__.resolve(fullName, options);\n    },\n\n    /**\n      Registers a factory that can be used for dependency injection (with\n      `inject`) or for service lookup. Each factory is registered with\n      a full name including two parts: `type:name`.\n       A simple example:\n       ```javascript\n      import Application from '@ember/application';\n      import EmberObject from '@ember/object';\n       let App = Application.create();\n       App.Orange = EmberObject.extend();\n      App.register('fruit:favorite', App.Orange);\n      ```\n       Ember will resolve factories from the `App` namespace automatically.\n      For example `App.CarsController` will be discovered and returned if\n      an application requests `controller:cars`.\n       An example of registering a controller with a non-standard name:\n       ```javascript\n      import Application from '@ember/application';\n      import Controller from '@ember/controller';\n       let App = Application.create();\n      let Session = Controller.extend();\n       App.register('controller:session', Session);\n       // The Session controller can now be treated like a normal controller,\n      // despite its non-standard name.\n      App.ApplicationController = Controller.extend({\n        needs: ['session']\n      });\n      ```\n       Registered factories are **instantiated** by having `create`\n      called on them. Additionally they are **singletons**, each time\n      they are looked up they return the same instance.\n       Some examples modifying that default behavior:\n       ```javascript\n      import Application from '@ember/application';\n      import EmberObject from '@ember/object';\n       let App = Application.create();\n       App.Person = EmberObject.extend();\n      App.Orange = EmberObject.extend();\n      App.Email = EmberObject.extend();\n      App.session = EmberObject.create();\n       App.register('model:user', App.Person, { singleton: false });\n      App.register('fruit:favorite', App.Orange);\n      App.register('communication:main', App.Email, { singleton: false });\n      App.register('session', App.session, { instantiate: false });\n      ```\n       @method register\n      @param  fullName {String} type:name (e.g., 'model:user')\n      @param  factory {any} (e.g., App.Person)\n      @param  options {Object} (optional) disable instantiation or singleton usage\n      @public\n     */\n    register: registryAlias('register'),\n\n    /**\n     Unregister a factory.\n      ```javascript\n     import Application from '@ember/application';\n     import EmberObject from '@ember/object';\n      let App = Application.create();\n     let User = EmberObject.extend();\n     App.register('model:user', User);\n      App.resolveRegistration('model:user').create() instanceof User //=> true\n      App.unregister('model:user')\n     App.resolveRegistration('model:user') === undefined //=> true\n     ```\n      @public\n     @method unregister\n     @param {String} fullName\n     */\n    unregister: registryAlias('unregister'),\n\n    /**\n     Check if a factory is registered.\n      @public\n     @method hasRegistration\n     @param {String} fullName\n     @return {Boolean}\n     */\n    hasRegistration: registryAlias('has'),\n\n    /**\n     Return a specific registered option for a particular factory.\n      @public\n     @method registeredOption\n     @param  {String} fullName\n     @param  {String} optionName\n     @return {Object} options\n     */\n    registeredOption: registryAlias('getOption'),\n\n    /**\n     Register options for a particular factory.\n      @public\n     @method registerOptions\n     @param {String} fullName\n     @param {Object} options\n     */\n    registerOptions: registryAlias('options'),\n\n    /**\n     Return registered options for a particular factory.\n      @public\n     @method registeredOptions\n     @param  {String} fullName\n     @return {Object} options\n     */\n    registeredOptions: registryAlias('getOptions'),\n\n    /**\n     Allow registering options for all factories of a type.\n      ```javascript\n     import Application from '@ember/application';\n      let App = Application.create();\n     let appInstance = App.buildInstance();\n      // if all of type `connection` must not be singletons\n     appInstance.registerOptionsForType('connection', { singleton: false });\n      appInstance.register('connection:twitter', TwitterConnection);\n     appInstance.register('connection:facebook', FacebookConnection);\n      let twitter = appInstance.lookup('connection:twitter');\n     let twitter2 = appInstance.lookup('connection:twitter');\n      twitter === twitter2; // => false\n      let facebook = appInstance.lookup('connection:facebook');\n     let facebook2 = appInstance.lookup('connection:facebook');\n      facebook === facebook2; // => false\n     ```\n      @public\n     @method registerOptionsForType\n     @param {String} type\n     @param {Object} options\n     */\n    registerOptionsForType: registryAlias('optionsForType'),\n\n    /**\n     Return the registered options for all factories of a type.\n      @public\n     @method registeredOptionsForType\n     @param {String} type\n     @return {Object} options\n     */\n    registeredOptionsForType: registryAlias('getOptionsForType'),\n\n    /**\n      Define a dependency injection onto a specific factory or all factories\n      of a type.\n       When Ember instantiates a controller, view, or other framework component\n      it can attach a dependency to that component. This is often used to\n      provide services to a set of framework components.\n       An example of providing a session object to all controllers:\n       ```javascript\n      import { alias } from '@ember/object/computed';\n      import Application from '@ember/application';\n      import Controller from '@ember/controller';\n      import EmberObject from '@ember/object';\n       let App = Application.create();\n      let Session = EmberObject.extend({ isAuthenticated: false });\n       // A factory must be registered before it can be injected\n      App.register('session:main', Session);\n       // Inject 'session:main' onto all factories of the type 'controller'\n      // with the name 'session'\n      App.inject('controller', 'session', 'session:main');\n       App.IndexController = Controller.extend({\n        isLoggedIn: alias('session.isAuthenticated')\n      });\n      ```\n       Injections can also be performed on specific factories.\n       ```javascript\n      App.inject(<full_name or type>, <property name>, <full_name>)\n      App.inject('route', 'source', 'source:main')\n      App.inject('route:application', 'email', 'model:email')\n      ```\n       It is important to note that injections can only be performed on\n      classes that are instantiated by Ember itself. Instantiating a class\n      directly (via `create` or `new`) bypasses the dependency injection\n      system.\n       @public\n      @method inject\n      @param  factoryNameOrType {String}\n      @param  property {String}\n      @param  injectionName {String}\n    **/\n    inject: registryAlias('injection')\n  });\n\n  _exports.default = _default;\n\n  function registryAlias(name) {\n    return function () {\n      return this.__registry__[name](...arguments);\n    };\n  }\n});","define(\"@ember/-internals/runtime/lib/mixins/target_action_support\", [\"exports\", \"@ember/-internals/environment\", \"@ember/-internals/metal\", \"@ember/debug\"], function (_exports, _environment, _metal, _debug) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n  @module ember\n  */\n\n  /**\n  `Ember.TargetActionSupport` is a mixin that can be included in a class\n  to add a `triggerAction` method with semantics similar to the Handlebars\n  `{{action}}` helper. In normal Ember usage, the `{{action}}` helper is\n  usually the best choice. This mixin is most often useful when you are\n  doing more complex event handling in Components.\n  \n  @class TargetActionSupport\n  @namespace Ember\n  @extends Mixin\n  @private\n  */\n  var _default = _metal.Mixin.create({\n    target: null,\n    action: null,\n    actionContext: null,\n    actionContextObject: (0, _metal.computed)('actionContext', function () {\n      var actionContext = (0, _metal.get)(this, 'actionContext');\n\n      if (typeof actionContext === 'string') {\n        var value = (0, _metal.get)(this, actionContext);\n\n        if (value === undefined) {\n          value = (0, _metal.get)(_environment.context.lookup, actionContext);\n        }\n\n        return value;\n      } else {\n        return actionContext;\n      }\n    }),\n\n    /**\n    Send an `action` with an `actionContext` to a `target`. The action, actionContext\n    and target will be retrieved from properties of the object. For example:\n     ```javascript\n    import { alias } from '@ember/object/computed';\n     App.SaveButtonView = Ember.View.extend(Ember.TargetActionSupport, {\n      target: alias('controller'),\n      action: 'save',\n      actionContext: alias('context'),\n      click() {\n        this.triggerAction(); // Sends the `save` action, along with the current context\n                              // to the current controller\n      }\n    });\n    ```\n     The `target`, `action`, and `actionContext` can be provided as properties of\n    an optional object argument to `triggerAction` as well.\n     ```javascript\n    App.SaveButtonView = Ember.View.extend(Ember.TargetActionSupport, {\n      click() {\n        this.triggerAction({\n          action: 'save',\n          target: this.get('controller'),\n          actionContext: this.get('context')\n        }); // Sends the `save` action, along with the current context\n            // to the current controller\n      }\n    });\n    ```\n     The `actionContext` defaults to the object you are mixing `TargetActionSupport` into.\n    But `target` and `action` must be specified either as properties or with the argument\n    to `triggerAction`, or a combination:\n     ```javascript\n    import { alias } from '@ember/object/computed';\n     App.SaveButtonView = Ember.View.extend(Ember.TargetActionSupport, {\n      target: alias('controller'),\n      click() {\n        this.triggerAction({\n          action: 'save'\n        }); // Sends the `save` action, along with a reference to `this`,\n            // to the current controller\n      }\n    });\n    ```\n     @method triggerAction\n    @param opts {Object} (optional, with the optional keys action, target and/or actionContext)\n    @return {Boolean} true if the action was sent successfully and did not return false\n    @private\n    */\n    triggerAction(opts = {}) {\n      var {\n        action,\n        target,\n        actionContext\n      } = opts;\n      action = action || (0, _metal.get)(this, 'action');\n      target = target || getTarget(this);\n\n      if (actionContext === undefined) {\n        actionContext = (0, _metal.get)(this, 'actionContextObject') || this;\n      }\n\n      if (target && action) {\n        var ret;\n\n        if (target.send) {\n          ret = target.send(...[action].concat(actionContext));\n        } else {\n          (true && !(typeof target[action] === 'function') && (0, _debug.assert)(`The action '${action}' did not exist on ${target}`, typeof target[action] === 'function'));\n          ret = target[action](...[].concat(actionContext));\n        }\n\n        if (ret !== false) {\n          return true;\n        }\n      }\n\n      return false;\n    }\n\n  });\n\n  _exports.default = _default;\n\n  function getTarget(instance) {\n    var target = (0, _metal.get)(instance, 'target');\n\n    if (target) {\n      if (typeof target === 'string') {\n        var value = (0, _metal.get)(instance, target);\n\n        if (value === undefined) {\n          value = (0, _metal.get)(_environment.context.lookup, target);\n        }\n\n        return value;\n      } else {\n        return target;\n      }\n    }\n\n    if (instance._target) {\n      return instance._target;\n    }\n\n    return null;\n  }\n});","define(\"@ember/-internals/runtime/lib/system/array_proxy\", [\"exports\", \"@ember/-internals/metal\", \"@ember/-internals/runtime/lib/system/object\", \"@ember/-internals/runtime/lib/mixins/array\", \"@ember/debug\", \"@glimmer/validator\"], function (_exports, _metal, _object, _array, _debug, _validator) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n  @module @ember/array\n  */\n  var ARRAY_OBSERVER_MAPPING = {\n    willChange: '_arrangedContentArrayWillChange',\n    didChange: '_arrangedContentArrayDidChange'\n  };\n  /**\n    An ArrayProxy wraps any other object that implements `Array` and/or\n    `MutableArray,` forwarding all requests. This makes it very useful for\n    a number of binding use cases or other cases where being able to swap\n    out the underlying array is useful.\n  \n    A simple example of usage:\n  \n    ```javascript\n    import { A } from '@ember/array';\n    import ArrayProxy from '@ember/array/proxy';\n  \n    let pets = ['dog', 'cat', 'fish'];\n    let ap = ArrayProxy.create({ content: A(pets) });\n  \n    ap.get('firstObject');                        // 'dog'\n    ap.set('content', ['amoeba', 'paramecium']);\n    ap.get('firstObject');                        // 'amoeba'\n    ```\n  \n    This class can also be useful as a layer to transform the contents of\n    an array, as they are accessed. This can be done by overriding\n    `objectAtContent`:\n  \n    ```javascript\n    import { A } from '@ember/array';\n    import ArrayProxy from '@ember/array/proxy';\n  \n    let pets = ['dog', 'cat', 'fish'];\n    let ap = ArrayProxy.create({\n        content: A(pets),\n        objectAtContent: function(idx) {\n            return this.get('content').objectAt(idx).toUpperCase();\n        }\n    });\n  \n    ap.get('firstObject'); // . 'DOG'\n    ```\n  \n    When overriding this class, it is important to place the call to\n    `_super` *after* setting `content` so the internal observers have\n    a chance to fire properly:\n  \n    ```javascript\n    import { A } from '@ember/array';\n    import ArrayProxy from '@ember/array/proxy';\n  \n    export default ArrayProxy.extend({\n      init() {\n        this.set('content', A(['dog', 'cat', 'fish']));\n        this._super(...arguments);\n      }\n    });\n    ```\n  \n    @class ArrayProxy\n    @extends EmberObject\n    @uses MutableArray\n    @public\n  */\n\n  class ArrayProxy extends _object.default {\n    init() {\n      super.init(...arguments);\n      /*\n        `this._objectsDirtyIndex` determines which indexes in the `this._objects`\n        cache are dirty.\n         If `this._objectsDirtyIndex === -1` then no indexes are dirty.\n        Otherwise, an index `i` is dirty if `i >= this._objectsDirtyIndex`.\n         Calling `objectAt` with a dirty index will cause the `this._objects`\n        cache to be recomputed.\n      */\n\n      this._objectsDirtyIndex = 0;\n      this._objects = null;\n      this._lengthDirty = true;\n      this._length = 0;\n      this._arrangedContent = null;\n      this._arrangedContentIsUpdating = false;\n      this._arrangedContentTag = null;\n      this._arrangedContentRevision = null;\n    }\n\n    [_metal.PROPERTY_DID_CHANGE]() {\n      this._revalidate();\n    }\n\n    [_metal.CUSTOM_TAG_FOR](key) {\n      if (key === '[]' || key === 'length') {\n        // revalidate eagerly if we're being tracked, since we no longer will\n        // be able to later on due to backtracking re-render assertion\n        this._revalidate();\n\n        return (0, _validator.combine)((0, _metal.getChainTagsForKey)(this, `arrangedContent.${key}`));\n      }\n\n      return (0, _validator.tagFor)(this, key);\n    }\n\n    willDestroy() {\n      this._removeArrangedContentArrayObserver();\n    }\n    /**\n      The content array. Must be an object that implements `Array` and/or\n      `MutableArray.`\n       @property content\n      @type EmberArray\n      @public\n    */\n\n    /**\n      Should actually retrieve the object at the specified index from the\n      content. You can override this method in subclasses to transform the\n      content item to something new.\n       This method will only be called if content is non-`null`.\n       @method objectAtContent\n      @param {Number} idx The index to retrieve.\n      @return {Object} the value or undefined if none found\n      @public\n    */\n\n\n    objectAtContent(idx) {\n      return (0, _metal.objectAt)((0, _metal.get)(this, 'arrangedContent'), idx);\n    } // See additional docs for `replace` from `MutableArray`:\n    // https://api.emberjs.com/ember/release/classes/MutableArray/methods/replace?anchor=replace\n\n\n    replace(idx, amt, objects) {\n      (true && !((0, _metal.get)(this, 'arrangedContent') === (0, _metal.get)(this, 'content')) && (0, _debug.assert)('Mutating an arranged ArrayProxy is not allowed', (0, _metal.get)(this, 'arrangedContent') === (0, _metal.get)(this, 'content')));\n      this.replaceContent(idx, amt, objects);\n    }\n    /**\n      Should actually replace the specified objects on the content array.\n      You can override this method in subclasses to transform the content item\n      into something new.\n       This method will only be called if content is non-`null`.\n       @method replaceContent\n      @param {Number} idx The starting index\n      @param {Number} amt The number of items to remove from the content.\n      @param {EmberArray} objects Optional array of objects to insert or null if no\n        objects.\n      @return {void}\n      @public\n    */\n\n\n    replaceContent(idx, amt, objects) {\n      (0, _metal.get)(this, 'content').replace(idx, amt, objects);\n    } // Overriding objectAt is not supported.\n\n\n    objectAt(idx) {\n      this._revalidate();\n\n      if (this._objects === null) {\n        this._objects = [];\n      }\n\n      if (this._objectsDirtyIndex !== -1 && idx >= this._objectsDirtyIndex) {\n        var arrangedContent = (0, _metal.get)(this, 'arrangedContent');\n\n        if (arrangedContent) {\n          var length = this._objects.length = (0, _metal.get)(arrangedContent, 'length');\n\n          for (var i = this._objectsDirtyIndex; i < length; i++) {\n            this._objects[i] = this.objectAtContent(i);\n          }\n        } else {\n          this._objects.length = 0;\n        }\n\n        this._objectsDirtyIndex = -1;\n      }\n\n      return this._objects[idx];\n    } // Overriding length is not supported.\n\n\n    get length() {\n      this._revalidate();\n\n      if (this._lengthDirty) {\n        var arrangedContent = (0, _metal.get)(this, 'arrangedContent');\n        this._length = arrangedContent ? (0, _metal.get)(arrangedContent, 'length') : 0;\n        this._lengthDirty = false;\n      }\n\n      return this._length;\n    }\n\n    set length(value) {\n      var length = this.length;\n      var removedCount = length - value;\n      var added;\n\n      if (removedCount === 0) {\n        return;\n      } else if (removedCount < 0) {\n        added = new Array(-removedCount);\n        removedCount = 0;\n      }\n\n      var content = (0, _metal.get)(this, 'content');\n\n      if (content) {\n        (0, _metal.replace)(content, value, removedCount, added);\n\n        this._invalidate();\n      }\n    }\n\n    _updateArrangedContentArray() {\n      var oldLength = this._objects === null ? 0 : this._objects.length;\n      var arrangedContent = (0, _metal.get)(this, 'arrangedContent');\n      var newLength = arrangedContent ? (0, _metal.get)(arrangedContent, 'length') : 0;\n\n      this._removeArrangedContentArrayObserver();\n\n      this.arrayContentWillChange(0, oldLength, newLength);\n\n      this._invalidate();\n\n      this.arrayContentDidChange(0, oldLength, newLength);\n\n      this._addArrangedContentArrayObserver();\n    }\n\n    _addArrangedContentArrayObserver() {\n      var arrangedContent = (0, _metal.get)(this, 'arrangedContent');\n\n      if (arrangedContent && !arrangedContent.isDestroyed) {\n        (true && !(arrangedContent !== this) && (0, _debug.assert)(\"Can't set ArrayProxy's content to itself\", arrangedContent !== this));\n        (true && !((0, _array.isArray)(arrangedContent) || arrangedContent.isDestroyed) && (0, _debug.assert)(`ArrayProxy expects an Array or ArrayProxy, but you passed ${typeof arrangedContent}`, (0, _array.isArray)(arrangedContent) || arrangedContent.isDestroyed));\n        (0, _metal.addArrayObserver)(arrangedContent, this, ARRAY_OBSERVER_MAPPING);\n        this._arrangedContent = arrangedContent;\n      }\n    }\n\n    _removeArrangedContentArrayObserver() {\n      if (this._arrangedContent) {\n        (0, _metal.removeArrayObserver)(this._arrangedContent, this, ARRAY_OBSERVER_MAPPING);\n      }\n    }\n\n    _arrangedContentArrayWillChange() {}\n\n    _arrangedContentArrayDidChange(proxy, idx, removedCnt, addedCnt) {\n      this.arrayContentWillChange(idx, removedCnt, addedCnt);\n      var dirtyIndex = idx;\n\n      if (dirtyIndex < 0) {\n        var length = (0, _metal.get)(this._arrangedContent, 'length');\n        dirtyIndex += length + removedCnt - addedCnt;\n      }\n\n      if (this._objectsDirtyIndex === -1 || this._objectsDirtyIndex > dirtyIndex) {\n        this._objectsDirtyIndex = dirtyIndex;\n      }\n\n      this._lengthDirty = true;\n      this.arrayContentDidChange(idx, removedCnt, addedCnt);\n    }\n\n    _invalidate() {\n      this._objectsDirtyIndex = 0;\n      this._lengthDirty = true;\n    }\n\n    _revalidate() {\n      if (this._arrangedContentIsUpdating === true) return;\n\n      if (this._arrangedContentTag === null || !(0, _validator.validateTag)(this._arrangedContentTag, this._arrangedContentRevision)) {\n        if (this._arrangedContentTag === null) {\n          // This is the first time the proxy has been setup, only add the observer\n          // don't trigger any events\n          this._addArrangedContentArrayObserver();\n        } else {\n          this._arrangedContentIsUpdating = true;\n\n          this._updateArrangedContentArray();\n\n          this._arrangedContentIsUpdating = false;\n        }\n\n        this._arrangedContentTag = (0, _validator.combine)((0, _metal.getChainTagsForKey)(this, 'arrangedContent'));\n        this._arrangedContentRevision = (0, _validator.valueForTag)(this._arrangedContentTag);\n      }\n    }\n\n  }\n\n  _exports.default = ArrayProxy;\n  ArrayProxy.reopen(_array.MutableArray, {\n    /**\n      The array that the proxy pretends to be. In the default `ArrayProxy`\n      implementation, this and `content` are the same. Subclasses of `ArrayProxy`\n      can override this property to provide things like sorting and filtering.\n       @property arrangedContent\n      @public\n    */\n    arrangedContent: (0, _metal.alias)('content'),\n\n    // Array proxies don't need to notify when they change since their `[]` tag is\n    // already dependent on the `[]` tag of `arrangedContent`\n    arrayContentDidChange(startIdx, removeAmt, addAmt) {\n      return (0, _metal.arrayContentDidChange)(this, startIdx, removeAmt, addAmt, false);\n    }\n\n  });\n});","define(\"@ember/-internals/runtime/lib/system/core_object\", [\"exports\", \"@ember/-internals/container\", \"@ember/-internals/owner\", \"@ember/polyfills\", \"@ember/-internals/utils\", \"@ember/runloop\", \"@ember/-internals/meta\", \"@ember/-internals/metal\", \"@ember/-internals/runtime/lib/mixins/action_handler\", \"@ember/debug\"], function (_exports, _container, _owner, _polyfills, _utils, _runloop, _meta2, _metal, _action_handler, _debug) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.setFrameworkClass = setFrameworkClass;\n  _exports.default = void 0;\n\n  /**\n    @module @ember/object\n  */\n  var reopen = _metal.Mixin.prototype.reopen;\n  var wasApplied = new _polyfills._WeakSet();\n  var factoryMap = new WeakMap();\n  var debugOwnerMap;\n\n  if (true\n  /* DEBUG */\n  ) {\n    debugOwnerMap = new WeakMap();\n  }\n\n  var prototypeMixinMap = new WeakMap();\n  var initCalled = true\n  /* DEBUG */\n  ? new _polyfills._WeakSet() : undefined; // only used in debug builds to enable the proxy trap\n\n  var PASSED_FROM_CREATE = true\n  /* DEBUG */\n  ? (0, _utils.symbol)('PASSED_FROM_CREATE') : undefined;\n  var FRAMEWORK_CLASSES = (0, _utils.symbol)('FRAMEWORK_CLASS');\n\n  function setFrameworkClass(klass) {\n    klass[FRAMEWORK_CLASSES] = true;\n  }\n\n  function initialize(obj, properties) {\n    var m = (0, _meta2.meta)(obj);\n\n    if (properties !== undefined) {\n      (true && !(typeof properties === 'object' && properties !== null) && (0, _debug.assert)('EmberObject.create only accepts objects.', typeof properties === 'object' && properties !== null));\n      (true && !(!(properties instanceof _metal.Mixin)) && (0, _debug.assert)('EmberObject.create no longer supports mixing in other ' + 'definitions, use .extend & .create separately instead.', !(properties instanceof _metal.Mixin)));\n      var concatenatedProperties = obj.concatenatedProperties;\n      var mergedProperties = obj.mergedProperties;\n      var hasConcatenatedProps = concatenatedProperties !== undefined && concatenatedProperties.length > 0;\n      var hasMergedProps = mergedProperties !== undefined && mergedProperties.length > 0;\n      var keyNames = Object.keys(properties);\n\n      for (var i = 0; i < keyNames.length; i++) {\n        var keyName = keyNames[i];\n        var value = properties[keyName];\n        (true && !(!(0, _metal.isClassicDecorator)(value)) && (0, _debug.assert)('EmberObject.create no longer supports defining computed ' + 'properties. Define computed properties using extend() or reopen() ' + 'before calling create().', !(0, _metal.isClassicDecorator)(value)));\n        (true && !(!(typeof value === 'function' && value.toString().indexOf('._super') !== -1)) && (0, _debug.assert)('EmberObject.create no longer supports defining methods that call _super.', !(typeof value === 'function' && value.toString().indexOf('._super') !== -1)));\n        (true && !(!(keyName === 'actions' && _action_handler.default.detect(obj))) && (0, _debug.assert)('`actions` must be provided at extend time, not at create time, ' + 'when Ember.ActionHandler is used (i.e. views, controllers & routes).', !(keyName === 'actions' && _action_handler.default.detect(obj))));\n        var possibleDesc = (0, _metal.descriptorForProperty)(obj, keyName, m);\n        var isDescriptor = possibleDesc !== undefined;\n\n        if (!isDescriptor) {\n          var baseValue = obj[keyName];\n\n          if (hasConcatenatedProps && concatenatedProperties.indexOf(keyName) > -1) {\n            if (baseValue) {\n              value = (0, _utils.makeArray)(baseValue).concat(value);\n            } else {\n              value = (0, _utils.makeArray)(value);\n            }\n          }\n\n          if (hasMergedProps && mergedProperties.indexOf(keyName) > -1) {\n            value = (0, _polyfills.assign)({}, baseValue, value);\n          }\n        }\n\n        if (isDescriptor) {\n          possibleDesc.set(obj, keyName, value);\n        } else if (typeof obj.setUnknownProperty === 'function' && !(keyName in obj)) {\n          obj.setUnknownProperty(keyName, value);\n        } else {\n          if (true\n          /* DEBUG */\n          ) {\n            (0, _metal.defineProperty)(obj, keyName, null, value, m); // setup mandatory setter\n          } else {\n            obj[keyName] = value;\n          }\n        }\n      }\n    } // using DEBUG here to avoid the extraneous variable when not needed\n\n\n    if (true\n    /* DEBUG */\n    ) {\n      initCalled.add(obj);\n    }\n\n    obj.init(properties);\n    m.unsetInitializing();\n    var observerEvents = m.observerEvents();\n\n    if (observerEvents !== undefined) {\n      for (var _i = 0; _i < observerEvents.length; _i++) {\n        (0, _metal.activateObserver)(obj, observerEvents[_i].event, observerEvents[_i].sync);\n      }\n    }\n\n    (0, _metal.sendEvent)(obj, 'init', undefined, undefined, undefined, m);\n  }\n  /**\n    `CoreObject` is the base class for all Ember constructs. It establishes a\n    class system based on Ember's Mixin system, and provides the basis for the\n    Ember Object Model. `CoreObject` should generally not be used directly,\n    instead you should use `EmberObject`.\n  \n    ## Usage\n  \n    You can define a class by extending from `CoreObject` using the `extend`\n    method:\n  \n    ```js\n    const Person = CoreObject.extend({\n      name: 'Tomster',\n    });\n    ```\n  \n    For detailed usage, see the [Object Model](https://guides.emberjs.com/release/object-model/)\n    section of the guides.\n  \n    ## Usage with Native Classes\n  \n    Native JavaScript `class` syntax can be used to extend from any `CoreObject`\n    based class:\n  \n    ```js\n    class Person extends CoreObject {\n      init() {\n        super.init(...arguments);\n        this.name = 'Tomster';\n      }\n    }\n    ```\n  \n    Some notes about `class` usage:\n  \n    * `new` syntax is not currently supported with classes that extend from\n      `EmberObject` or `CoreObject`. You must continue to use the `create` method\n      when making new instances of classes, even if they are defined using native\n      class syntax. If you want to use `new` syntax, consider creating classes\n      which do _not_ extend from `EmberObject` or `CoreObject`. Ember features,\n      such as computed properties and decorators, will still work with base-less\n      classes.\n    * Instead of using `this._super()`, you must use standard `super` syntax in\n      native classes. See the [MDN docs on classes](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Classes#Super_class_calls_with_super)\n      for more details.\n    * Native classes support using [constructors](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Classes#Constructor)\n      to set up newly-created instances. Ember uses these to, among other things,\n      support features that need to retrieve other entities by name, like Service\n      injection and `getOwner`. To ensure your custom instance setup logic takes\n      place after this important work is done, avoid using the `constructor` in\n      favor of `init`.\n    * Properties passed to `create` will be available on the instance by the time\n      `init` runs, so any code that requires these values should work at that\n      time.\n    * Using native classes, and switching back to the old Ember Object model is\n      fully supported.\n  \n    @class CoreObject\n    @public\n  */\n\n\n  class CoreObject {\n    static _initFactory(factory) {\n      factoryMap.set(this, factory);\n    }\n\n    constructor(passedFromCreate) {\n      // pluck off factory\n      var initFactory = factoryMap.get(this.constructor);\n\n      if (initFactory !== undefined) {\n        factoryMap.delete(this.constructor);\n\n        _container.FACTORY_FOR.set(this, initFactory);\n      } // prepare prototype...\n\n\n      this.constructor.proto();\n      var self = this;\n\n      if (true\n      /* DEBUG */\n      && _utils.HAS_NATIVE_PROXY && typeof self.unknownProperty === 'function') {\n        var messageFor = (obj, property) => {\n          return `You attempted to access the \\`${String(property)}\\` property (of ${obj}).\\n` + `Since Ember 3.1, this is usually fine as you no longer need to use \\`.get()\\`\\n` + `to access computed properties. However, in this case, the object in question\\n` + `is a special kind of Ember object (a proxy). Therefore, it is still necessary\\n` + `to use \\`.get('${String(property)}')\\` in this case.\\n\\n` + `If you encountered this error because of third-party code that you don't control,\\n` + `there is more information at https://github.com/emberjs/ember.js/issues/16148, and\\n` + `you can help us improve this error message by telling us more about what happened in\\n` + `this situation.`;\n        };\n        /* globals Proxy Reflect */\n\n\n        self = new Proxy(this, {\n          get(target, property, receiver) {\n            if (property === _metal.PROXY_CONTENT) {\n              return target;\n            } else if ( // init called will be set on the proxy, not the target, so get with the receiver\n            !initCalled.has(receiver) || typeof property === 'symbol' || (0, _utils.isInternalSymbol)(property) || property === 'toJSON' || property === 'toString' || property === 'toStringExtension' || property === 'didDefineProperty' || property === 'willWatchProperty' || property === 'didUnwatchProperty' || property === 'didAddListener' || property === 'didRemoveListener' || property === 'isDescriptor' || property === '_onLookup' || property in target) {\n              return Reflect.get(target, property, receiver);\n            }\n\n            var value = target.unknownProperty.call(receiver, property);\n\n            if (typeof value !== 'function') {\n              (true && !(value === undefined || value === null) && (0, _debug.assert)(messageFor(receiver, property), value === undefined || value === null));\n            }\n          }\n\n        });\n\n        _container.FACTORY_FOR.set(self, initFactory);\n      } // disable chains\n\n\n      var m = (0, _meta2.meta)(self);\n      m.setInitializing();\n      (true && !((() => {\n        var owner = debugOwnerMap.get(this.constructor);\n        debugOwnerMap.delete(this.constructor);\n        return passedFromCreate !== undefined && (passedFromCreate === PASSED_FROM_CREATE || passedFromCreate === owner);\n      })()) && (0, _debug.assert)(`An EmberObject based class, ${this.constructor}, was not instantiated correctly. You may have either used \\`new\\` instead of \\`.create()\\`, or not passed arguments to your call to super in the constructor: \\`super(...arguments)\\`. If you are trying to use \\`new\\`, consider using native classes without extending from EmberObject.`, (() => {\n        var owner = debugOwnerMap.get(this.constructor);\n        debugOwnerMap.delete(this.constructor);\n        return passedFromCreate !== undefined && (passedFromCreate === PASSED_FROM_CREATE || passedFromCreate === owner);\n      })())); // only return when in debug builds and `self` is the proxy created above\n\n      if (true\n      /* DEBUG */\n      && self !== this) {\n        return self;\n      }\n    }\n\n    reopen(...args) {\n      (0, _metal.applyMixin)(this, args);\n      return this;\n    }\n    /**\n      An overridable method called when objects are instantiated. By default,\n      does nothing unless it is overridden during class definition.\n       Example:\n       ```javascript\n      import EmberObject from '@ember/object';\n       const Person = EmberObject.extend({\n        init() {\n          alert(`Name is ${this.get('name')}`);\n        }\n      });\n       let steve = Person.create({\n        name: 'Steve'\n      });\n       // alerts 'Name is Steve'.\n      ```\n       NOTE: If you do override `init` for a framework class like `Ember.View`,\n      be sure to call `this._super(...arguments)` in your\n      `init` declaration! If you don't, Ember may not have an opportunity to\n      do important setup work, and you'll see strange behavior in your\n      application.\n       @method init\n      @public\n    */\n\n\n    init() {}\n    /**\n      Defines the properties that will be concatenated from the superclass\n      (instead of overridden).\n       By default, when you extend an Ember class a property defined in\n      the subclass overrides a property with the same name that is defined\n      in the superclass. However, there are some cases where it is preferable\n      to build up a property's value by combining the superclass' property\n      value with the subclass' value. An example of this in use within Ember\n      is the `classNames` property of `Ember.View`.\n       Here is some sample code showing the difference between a concatenated\n      property and a normal one:\n       ```javascript\n      import EmberObject from '@ember/object';\n       const Bar = EmberObject.extend({\n        // Configure which properties to concatenate\n        concatenatedProperties: ['concatenatedProperty'],\n         someNonConcatenatedProperty: ['bar'],\n        concatenatedProperty: ['bar']\n      });\n       const FooBar = Bar.extend({\n        someNonConcatenatedProperty: ['foo'],\n        concatenatedProperty: ['foo']\n      });\n       let fooBar = FooBar.create();\n      fooBar.get('someNonConcatenatedProperty'); // ['foo']\n      fooBar.get('concatenatedProperty'); // ['bar', 'foo']\n      ```\n       This behavior extends to object creation as well. Continuing the\n      above example:\n       ```javascript\n      let fooBar = FooBar.create({\n        someNonConcatenatedProperty: ['baz'],\n        concatenatedProperty: ['baz']\n      })\n      fooBar.get('someNonConcatenatedProperty'); // ['baz']\n      fooBar.get('concatenatedProperty'); // ['bar', 'foo', 'baz']\n      ```\n       Adding a single property that is not an array will just add it in the array:\n       ```javascript\n      let fooBar = FooBar.create({\n        concatenatedProperty: 'baz'\n      })\n      view.get('concatenatedProperty'); // ['bar', 'foo', 'baz']\n      ```\n       Using the `concatenatedProperties` property, we can tell Ember to mix the\n      content of the properties.\n       In `Component` the `classNames`, `classNameBindings` and\n      `attributeBindings` properties are concatenated.\n       This feature is available for you to use throughout the Ember object model,\n      although typical app developers are likely to use it infrequently. Since\n      it changes expectations about behavior of properties, you should properly\n      document its usage in each individual concatenated property (to not\n      mislead your users to think they can override the property in a subclass).\n       @property concatenatedProperties\n      @type Array\n      @default null\n      @public\n    */\n\n    /**\n      Defines the properties that will be merged from the superclass\n      (instead of overridden).\n       By default, when you extend an Ember class a property defined in\n      the subclass overrides a property with the same name that is defined\n      in the superclass. However, there are some cases where it is preferable\n      to build up a property's value by merging the superclass property value\n      with the subclass property's value. An example of this in use within Ember\n      is the `queryParams` property of routes.\n       Here is some sample code showing the difference between a merged\n      property and a normal one:\n       ```javascript\n      import EmberObject from '@ember/object';\n       const Bar = EmberObject.extend({\n        // Configure which properties are to be merged\n        mergedProperties: ['mergedProperty'],\n         someNonMergedProperty: {\n          nonMerged: 'superclass value of nonMerged'\n        },\n        mergedProperty: {\n          page: { replace: false },\n          limit: { replace: true }\n        }\n      });\n       const FooBar = Bar.extend({\n        someNonMergedProperty: {\n          completelyNonMerged: 'subclass value of nonMerged'\n        },\n        mergedProperty: {\n          limit: { replace: false }\n        }\n      });\n       let fooBar = FooBar.create();\n       fooBar.get('someNonMergedProperty');\n      // => { completelyNonMerged: 'subclass value of nonMerged' }\n      //\n      // Note the entire object, including the nonMerged property of\n      // the superclass object, has been replaced\n       fooBar.get('mergedProperty');\n      // => {\n      //   page: {replace: false},\n      //   limit: {replace: false}\n      // }\n      //\n      // Note the page remains from the superclass, and the\n      // `limit` property's value of `false` has been merged from\n      // the subclass.\n      ```\n       This behavior is not available during object `create` calls. It is only\n      available at `extend` time.\n       In `Route` the `queryParams` property is merged.\n       This feature is available for you to use throughout the Ember object model,\n      although typical app developers are likely to use it infrequently. Since\n      it changes expectations about behavior of properties, you should properly\n      document its usage in each individual merged property (to not\n      mislead your users to think they can override the property in a subclass).\n       @property mergedProperties\n      @type Array\n      @default null\n      @public\n    */\n\n    /**\n      Destroyed object property flag.\n       if this property is `true` the observers and bindings were already\n      removed by the effect of calling the `destroy()` method.\n       @property isDestroyed\n      @default false\n      @public\n    */\n\n\n    get isDestroyed() {\n      return (0, _meta2.peekMeta)(this).isSourceDestroyed();\n    }\n\n    set isDestroyed(value) {\n      (true && !(false) && (0, _debug.assert)(`You cannot set \\`${this}.isDestroyed\\` directly, please use \\`.destroy()\\`.`, false));\n    }\n    /**\n      Destruction scheduled flag. The `destroy()` method has been called.\n       The object stays intact until the end of the run loop at which point\n      the `isDestroyed` flag is set.\n       @property isDestroying\n      @default false\n      @public\n    */\n\n\n    get isDestroying() {\n      return (0, _meta2.peekMeta)(this).isSourceDestroying();\n    }\n\n    set isDestroying(value) {\n      (true && !(false) && (0, _debug.assert)(`You cannot set \\`${this}.isDestroying\\` directly, please use \\`.destroy()\\`.`, false));\n    }\n    /**\n      Destroys an object by setting the `isDestroyed` flag and removing its\n      metadata, which effectively destroys observers and bindings.\n       If you try to set a property on a destroyed object, an exception will be\n      raised.\n       Note that destruction is scheduled for the end of the run loop and does not\n      happen immediately.  It will set an isDestroying flag immediately.\n       @method destroy\n      @return {EmberObject} receiver\n      @public\n    */\n\n\n    destroy() {\n      if ((0, _metal.destroy)(this)) {\n        (0, _runloop.schedule)('actions', this, this.willDestroy);\n        return;\n      }\n\n      return this;\n    }\n    /**\n      Override to implement teardown.\n       @method willDestroy\n      @public\n    */\n\n\n    willDestroy() {}\n    /**\n      Returns a string representation which attempts to provide more information\n      than Javascript's `toString` typically does, in a generic way for all Ember\n      objects.\n       ```javascript\n      import EmberObject from '@ember/object';\n       const Person = EmberObject.extend();\n      person = Person.create();\n      person.toString(); //=> \"<Person:ember1024>\"\n      ```\n       If the object's class is not defined on an Ember namespace, it will\n      indicate it is a subclass of the registered superclass:\n       ```javascript\n      const Student = Person.extend();\n      let student = Student.create();\n      student.toString(); //=> \"<(subclass of Person):ember1025>\"\n      ```\n       If the method `toStringExtension` is defined, its return value will be\n      included in the output.\n       ```javascript\n      const Teacher = Person.extend({\n        toStringExtension() {\n          return this.get('fullName');\n        }\n      });\n      teacher = Teacher.create();\n      teacher.toString(); //=> \"<Teacher:ember1026:Tom Dale>\"\n      ```\n       @method toString\n      @return {String} string representation\n      @public\n    */\n\n\n    toString() {\n      var hasToStringExtension = typeof this.toStringExtension === 'function';\n      var extension = hasToStringExtension ? `:${this.toStringExtension()}` : '';\n      var ret = `<${(0, _utils.getName)(this) || _container.FACTORY_FOR.get(this) || this.constructor.toString()}:${(0, _utils.guidFor)(this)}${extension}>`;\n      return ret;\n    }\n    /**\n      Creates a new subclass.\n       ```javascript\n      import EmberObject from '@ember/object';\n       const Person = EmberObject.extend({\n        say(thing) {\n          alert(thing);\n         }\n      });\n      ```\n       This defines a new subclass of EmberObject: `Person`. It contains one method: `say()`.\n       You can also create a subclass from any existing class by calling its `extend()` method.\n      For example, you might want to create a subclass of Ember's built-in `Component` class:\n       ```javascript\n      import Component from '@ember/component';\n       const PersonComponent = Component.extend({\n        tagName: 'li',\n        classNameBindings: ['isAdministrator']\n      });\n      ```\n       When defining a subclass, you can override methods but still access the\n      implementation of your parent class by calling the special `_super()` method:\n       ```javascript\n      import EmberObject from '@ember/object';\n       const Person = EmberObject.extend({\n        say(thing) {\n          let name = this.get('name');\n          alert(`${name} says: ${thing}`);\n        }\n      });\n       const Soldier = Person.extend({\n        say(thing) {\n          this._super(`${thing}, sir!`);\n        },\n        march(numberOfHours) {\n          alert(`${this.get('name')} marches for ${numberOfHours} hours.`);\n        }\n      });\n       let yehuda = Soldier.create({\n        name: 'Yehuda Katz'\n      });\n       yehuda.say('Yes');  // alerts \"Yehuda Katz says: Yes, sir!\"\n      ```\n       The `create()` on line #17 creates an *instance* of the `Soldier` class.\n      The `extend()` on line #8 creates a *subclass* of `Person`. Any instance\n      of the `Person` class will *not* have the `march()` method.\n       You can also pass `Mixin` classes to add additional properties to the subclass.\n       ```javascript\n      import EmberObject from '@ember/object';\n      import Mixin from '@ember/object/mixin';\n       const Person = EmberObject.extend({\n        say(thing) {\n          alert(`${this.get('name')} says: ${thing}`);\n        }\n      });\n       const SingingMixin = Mixin.create({\n        sing(thing) {\n          alert(`${this.get('name')} sings: la la la ${thing}`);\n        }\n      });\n       const BroadwayStar = Person.extend(SingingMixin, {\n        dance() {\n          alert(`${this.get('name')} dances: tap tap tap tap `);\n        }\n      });\n      ```\n       The `BroadwayStar` class contains three methods: `say()`, `sing()`, and `dance()`.\n       @method extend\n      @static\n      @for @ember/object\n      @param {Mixin} [mixins]* One or more Mixin classes\n      @param {Object} [arguments]* Object containing values to use within the new class\n      @public\n    */\n\n\n    static extend() {\n      var Class = class extends this {};\n      reopen.apply(Class.PrototypeMixin, arguments);\n      return Class;\n    }\n    /**\n      Creates an instance of a class. Accepts either no arguments, or an object\n      containing values to initialize the newly instantiated object with.\n       ```javascript\n      import EmberObject from '@ember/object';\n       const Person = EmberObject.extend({\n        helloWorld() {\n          alert(`Hi, my name is ${this.get('name')}`);\n        }\n      });\n       let tom = Person.create({\n        name: 'Tom Dale'\n      });\n       tom.helloWorld(); // alerts \"Hi, my name is Tom Dale\".\n      ```\n       `create` will call the `init` function if defined during\n      `AnyObject.extend`\n       If no arguments are passed to `create`, it will not set values to the new\n      instance during initialization:\n       ```javascript\n      let noName = Person.create();\n      noName.helloWorld(); // alerts undefined\n      ```\n       NOTE: For performance reasons, you cannot declare methods or computed\n      properties during `create`. You should instead declare methods and computed\n      properties when using `extend`.\n       @method create\n      @for @ember/object\n      @static\n      @param [arguments]*\n      @public\n    */\n\n\n    static create(props, extra) {\n      var C = this;\n      var instance;\n\n      if (this[FRAMEWORK_CLASSES]) {\n        var initFactory = factoryMap.get(this);\n        var owner;\n\n        if (initFactory !== undefined) {\n          owner = initFactory.owner;\n        } else if (props !== undefined) {\n          owner = (0, _owner.getOwner)(props);\n        }\n\n        if (true\n        /* DEBUG */\n        ) {\n          if (owner === undefined) {\n            // fallback to passing the special PASSED_FROM_CREATE symbol\n            // to avoid an error when folks call things like Controller.extend().create()\n            // we should do a subsequent deprecation pass to ensure this isn't allowed\n            owner = PASSED_FROM_CREATE;\n          } else {\n            debugOwnerMap.set(this, owner);\n          }\n        }\n\n        instance = new C(owner);\n      } else {\n        instance = true\n        /* DEBUG */\n        ? new C(PASSED_FROM_CREATE) : new C();\n      }\n\n      if (extra === undefined) {\n        initialize(instance, props);\n      } else {\n        initialize(instance, flattenProps.apply(this, arguments));\n      }\n\n      return instance;\n    }\n    /**\n      Augments a constructor's prototype with additional\n      properties and functions:\n       ```javascript\n      import EmberObject from '@ember/object';\n       const MyObject = EmberObject.extend({\n        name: 'an object'\n      });\n       o = MyObject.create();\n      o.get('name'); // 'an object'\n       MyObject.reopen({\n        say(msg) {\n          console.log(msg);\n        }\n      });\n       o2 = MyObject.create();\n      o2.say('hello'); // logs \"hello\"\n       o.say('goodbye'); // logs \"goodbye\"\n      ```\n       To add functions and properties to the constructor itself,\n      see `reopenClass`\n       @method reopen\n      @for @ember/object\n      @static\n      @public\n    */\n\n\n    static reopen() {\n      this.willReopen();\n      reopen.apply(this.PrototypeMixin, arguments);\n      return this;\n    }\n\n    static willReopen() {\n      var p = this.prototype;\n\n      if (wasApplied.has(p)) {\n        wasApplied.delete(p); // If the base mixin already exists and was applied, create a new mixin to\n        // make sure that it gets properly applied. Reusing the same mixin after\n        // the first `proto` call will cause it to get skipped.\n\n        if (prototypeMixinMap.has(this)) {\n          prototypeMixinMap.set(this, _metal.Mixin.create(this.PrototypeMixin));\n        }\n      }\n    }\n    /**\n      Augments a constructor's own properties and functions:\n       ```javascript\n      import EmberObject from '@ember/object';\n       const MyObject = EmberObject.extend({\n        name: 'an object'\n      });\n       MyObject.reopenClass({\n        canBuild: false\n      });\n       MyObject.canBuild; // false\n      o = MyObject.create();\n      ```\n       In other words, this creates static properties and functions for the class.\n      These are only available on the class and not on any instance of that class.\n       ```javascript\n      import EmberObject from '@ember/object';\n       const Person = EmberObject.extend({\n        name: '',\n        sayHello() {\n          alert(`Hello. My name is ${this.get('name')}`);\n        }\n      });\n       Person.reopenClass({\n        species: 'Homo sapiens',\n         createPerson(name) {\n          return Person.create({ name });\n        }\n      });\n       let tom = Person.create({\n        name: 'Tom Dale'\n      });\n      let yehuda = Person.createPerson('Yehuda Katz');\n       tom.sayHello(); // \"Hello. My name is Tom Dale\"\n      yehuda.sayHello(); // \"Hello. My name is Yehuda Katz\"\n      alert(Person.species); // \"Homo sapiens\"\n      ```\n       Note that `species` and `createPerson` are *not* valid on the `tom` and `yehuda`\n      variables. They are only valid on `Person`.\n       To add functions and properties to instances of\n      a constructor by extending the constructor's prototype\n      see `reopen`\n       @method reopenClass\n      @for @ember/object\n      @static\n      @public\n    */\n\n\n    static reopenClass() {\n      (0, _metal.applyMixin)(this, arguments);\n      return this;\n    }\n\n    static detect(obj) {\n      if ('function' !== typeof obj) {\n        return false;\n      }\n\n      while (obj) {\n        if (obj === this) {\n          return true;\n        }\n\n        obj = obj.superclass;\n      }\n\n      return false;\n    }\n\n    static detectInstance(obj) {\n      return obj instanceof this;\n    }\n    /**\n      In some cases, you may want to annotate computed properties with additional\n      metadata about how they function or what values they operate on. For\n      example, computed property functions may close over variables that are then\n      no longer available for introspection.\n       You can pass a hash of these values to a computed property like this:\n       ```javascript\n      import { computed } from '@ember/object';\n       person: computed(function() {\n        let personId = this.get('personId');\n        return Person.create({ id: personId });\n      }).meta({ type: Person })\n      ```\n       Once you've done this, you can retrieve the values saved to the computed\n      property from your class like this:\n       ```javascript\n      MyClass.metaForProperty('person');\n      ```\n       This will return the original hash that was passed to `meta()`.\n       @static\n      @method metaForProperty\n      @param key {String} property name\n      @private\n    */\n\n\n    static metaForProperty(key) {\n      var proto = this.proto(); // ensure prototype is initialized\n\n      var possibleDesc = (0, _metal.descriptorForProperty)(proto, key);\n      (true && !(possibleDesc !== undefined) && (0, _debug.assert)(`metaForProperty() could not find a computed property with key '${key}'.`, possibleDesc !== undefined));\n      return possibleDesc._meta || {};\n    }\n    /**\n      Iterate over each computed property for the class, passing its name\n      and any associated metadata (see `metaForProperty`) to the callback.\n       @static\n      @method eachComputedProperty\n      @param {Function} callback\n      @param {Object} binding\n      @private\n    */\n\n\n    static eachComputedProperty(callback, binding = this) {\n      this.proto(); // ensure prototype is initialized\n\n      var empty = {};\n      (0, _meta2.meta)(this.prototype).forEachDescriptors((name, descriptor) => {\n        if (descriptor.enumerable) {\n          var _meta = descriptor._meta || empty;\n\n          callback.call(binding, name, _meta);\n        }\n      });\n    }\n\n    static get PrototypeMixin() {\n      var prototypeMixin = prototypeMixinMap.get(this);\n\n      if (prototypeMixin === undefined) {\n        prototypeMixin = _metal.Mixin.create();\n        prototypeMixin.ownerConstructor = this;\n        prototypeMixinMap.set(this, prototypeMixin);\n      }\n\n      return prototypeMixin;\n    }\n\n    static get superclass() {\n      var c = Object.getPrototypeOf(this);\n      return c !== Function.prototype ? c : undefined;\n    }\n\n    static proto() {\n      var p = this.prototype;\n\n      if (!wasApplied.has(p)) {\n        wasApplied.add(p);\n        var parent = this.superclass;\n\n        if (parent) {\n          parent.proto();\n        } // If the prototype mixin exists, apply it. In the case of native classes,\n        // it will not exist (unless the class has been reopened).\n\n\n        if (prototypeMixinMap.has(this)) {\n          this.PrototypeMixin.apply(p);\n        }\n      }\n\n      return p;\n    }\n\n  }\n\n  CoreObject.toString = _metal.classToString;\n  (0, _utils.setName)(CoreObject, 'Ember.CoreObject');\n  CoreObject.isClass = true;\n  CoreObject.isMethod = false;\n\n  function flattenProps(...props) {\n    var {\n      concatenatedProperties,\n      mergedProperties\n    } = this;\n    var hasConcatenatedProps = concatenatedProperties !== undefined && concatenatedProperties.length > 0;\n    var hasMergedProps = mergedProperties !== undefined && mergedProperties.length > 0;\n    var initProperties = {};\n\n    for (var i = 0; i < props.length; i++) {\n      var properties = props[i];\n      (true && !(!(properties instanceof _metal.Mixin)) && (0, _debug.assert)('EmberObject.create no longer supports mixing in other ' + 'definitions, use .extend & .create separately instead.', !(properties instanceof _metal.Mixin)));\n      var keyNames = Object.keys(properties);\n\n      for (var j = 0, k = keyNames.length; j < k; j++) {\n        var keyName = keyNames[j];\n        var value = properties[keyName];\n\n        if (hasConcatenatedProps && concatenatedProperties.indexOf(keyName) > -1) {\n          var baseValue = initProperties[keyName];\n\n          if (baseValue) {\n            value = (0, _utils.makeArray)(baseValue).concat(value);\n          } else {\n            value = (0, _utils.makeArray)(value);\n          }\n        }\n\n        if (hasMergedProps && mergedProperties.indexOf(keyName) > -1) {\n          var _baseValue = initProperties[keyName];\n          value = (0, _polyfills.assign)({}, _baseValue, value);\n        }\n\n        initProperties[keyName] = value;\n      }\n    }\n\n    return initProperties;\n  }\n\n  if (true\n  /* DEBUG */\n  ) {\n    /**\n      Provides lookup-time type validation for injected properties.\n       @private\n      @method _onLookup\n    */\n    CoreObject._onLookup = function injectedPropertyAssertion(debugContainerKey) {\n      var [type] = debugContainerKey.split(':');\n      var proto = this.proto();\n\n      for (var key in proto) {\n        var desc = (0, _metal.descriptorForProperty)(proto, key);\n\n        if (desc && _metal.DEBUG_INJECTION_FUNCTIONS.has(desc._getter)) {\n          (true && !(type === 'controller' || _metal.DEBUG_INJECTION_FUNCTIONS.get(desc._getter).type !== 'controller') && (0, _debug.assert)(`Defining \\`${key}\\` as an injected controller property on a non-controller (\\`${debugContainerKey}\\`) is not allowed.`, type === 'controller' || _metal.DEBUG_INJECTION_FUNCTIONS.get(desc._getter).type !== 'controller'));\n        }\n      }\n    };\n    /**\n      Returns a hash of property names and container names that injected\n      properties will lookup on the container lazily.\n       @method _lazyInjections\n      @return {Object} Hash of all lazy injected property keys to container names\n      @private\n    */\n\n\n    CoreObject._lazyInjections = function () {\n      var injections = {};\n      var proto = this.proto();\n      var key;\n      var desc;\n\n      for (key in proto) {\n        desc = (0, _metal.descriptorForProperty)(proto, key);\n\n        if (desc && _metal.DEBUG_INJECTION_FUNCTIONS.has(desc._getter)) {\n          var {\n            namespace,\n            source,\n            type,\n            name\n          } = _metal.DEBUG_INJECTION_FUNCTIONS.get(desc._getter);\n\n          injections[key] = {\n            namespace,\n            source,\n            specifier: `${type}:${name || key}`\n          };\n        }\n      }\n\n      return injections;\n    };\n  }\n\n  var _default = CoreObject;\n  _exports.default = _default;\n});","define(\"@ember/-internals/runtime/lib/system/namespace\", [\"exports\", \"@ember/-internals/metal\", \"@ember/-internals/utils\", \"@ember/-internals/runtime/lib/system/object\"], function (_exports, _metal, _utils, _object) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n  @module ember\n  */\n  // Preloaded into namespaces\n\n  /**\n    A Namespace is an object usually used to contain other objects or methods\n    such as an application or framework. Create a namespace anytime you want\n    to define one of these new containers.\n  \n    # Example Usage\n  \n    ```javascript\n    MyFramework = Ember.Namespace.create({\n      VERSION: '1.0.0'\n    });\n    ```\n  \n    @class Namespace\n    @namespace Ember\n    @extends EmberObject\n    @public\n  */\n  class Namespace extends _object.default {\n    init() {\n      (0, _metal.addNamespace)(this);\n    }\n\n    toString() {\n      var name = (0, _metal.get)(this, 'name') || (0, _metal.get)(this, 'modulePrefix');\n\n      if (name) {\n        return name;\n      }\n\n      (0, _metal.findNamespaces)();\n      name = (0, _utils.getName)(this);\n\n      if (name === undefined) {\n        name = (0, _utils.guidFor)(this);\n        (0, _utils.setName)(this, name);\n      }\n\n      return name;\n    }\n\n    nameClasses() {\n      (0, _metal.processNamespace)(this);\n    }\n\n    destroy() {\n      (0, _metal.removeNamespace)(this);\n      super.destroy();\n    }\n\n  }\n\n  _exports.default = Namespace;\n  Namespace.prototype.isNamespace = true;\n  Namespace.NAMESPACES = _metal.NAMESPACES;\n  Namespace.NAMESPACES_BY_ID = _metal.NAMESPACES_BY_ID;\n  Namespace.processAll = _metal.processAllNamespaces;\n  Namespace.byName = _metal.findNamespace;\n});","define(\"@ember/-internals/runtime/lib/system/object\", [\"exports\", \"@ember/-internals/container\", \"@ember/-internals/owner\", \"@ember/-internals/utils\", \"@ember/-internals/metal\", \"@ember/-internals/runtime/lib/system/core_object\", \"@ember/-internals/runtime/lib/mixins/observable\", \"@ember/debug\"], function (_exports, _container, _owner, _utils, _metal, _core_object, _observable, _debug) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.FrameworkObject = _exports.default = void 0;\n\n  /**\n  @module @ember/object\n  */\n  var instanceOwner = new WeakMap();\n  /**\n    `EmberObject` is the main base class for all Ember objects. It is a subclass\n    of `CoreObject` with the `Observable` mixin applied. For details,\n    see the documentation for each of these.\n  \n    @class EmberObject\n    @extends CoreObject\n    @uses Observable\n    @public\n  */\n\n  class EmberObject extends _core_object.default {\n    get _debugContainerKey() {\n      var factory = _container.FACTORY_FOR.get(this);\n\n      return factory !== undefined && factory.fullName;\n    }\n\n    get [_owner.OWNER]() {\n      var owner = instanceOwner.get(this);\n\n      if (owner !== undefined) {\n        return owner;\n      }\n\n      var factory = _container.FACTORY_FOR.get(this);\n\n      return factory !== undefined && factory.owner;\n    } // we need a setter here largely to support\n    // folks calling `owner.ownerInjection()` API\n\n\n    set [_owner.OWNER](value) {\n      instanceOwner.set(this, value);\n    }\n\n  }\n\n  _exports.default = EmberObject;\n  (0, _utils.setName)(EmberObject, 'Ember.Object');\n\n  _observable.default.apply(EmberObject.prototype);\n\n  var FrameworkObject;\n  _exports.FrameworkObject = FrameworkObject;\n  _exports.FrameworkObject = FrameworkObject = class FrameworkObject extends _core_object.default {\n    get _debugContainerKey() {\n      var factory = _container.FACTORY_FOR.get(this);\n\n      return factory !== undefined && factory.fullName;\n    }\n\n    constructor(owner) {\n      super();\n      (0, _owner.setOwner)(this, owner);\n    }\n\n  };\n\n  _observable.default.apply(FrameworkObject.prototype);\n\n  if (true\n  /* DEBUG */\n  ) {\n    var INIT_WAS_CALLED = (0, _utils.symbol)('INIT_WAS_CALLED');\n    var ASSERT_INIT_WAS_CALLED = (0, _utils.symbol)('ASSERT_INIT_WAS_CALLED');\n    _exports.FrameworkObject = FrameworkObject = class DebugFrameworkObject extends EmberObject {\n      init() {\n        super.init(...arguments);\n        this[INIT_WAS_CALLED] = true;\n      }\n\n      [ASSERT_INIT_WAS_CALLED]() {\n        (true && !(this[INIT_WAS_CALLED]) && (0, _debug.assert)(`You must call \\`this._super(...arguments);\\` when overriding \\`init\\` on a framework object. Please update ${this} to call \\`this._super(...arguments);\\` from \\`init\\`.`, this[INIT_WAS_CALLED]));\n      }\n\n    };\n    (0, _metal.addListener)(FrameworkObject.prototype, 'init', null, ASSERT_INIT_WAS_CALLED);\n  }\n});","define(\"@ember/-internals/runtime/lib/system/object_proxy\", [\"exports\", \"@ember/-internals/runtime/lib/system/object\", \"@ember/-internals/runtime/lib/mixins/-proxy\"], function (_exports, _object, _proxy) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n    `ObjectProxy` forwards all properties not defined by the proxy itself\n    to a proxied `content` object.\n  \n    ```javascript\n    import EmberObject from '@ember/object';\n    import ObjectProxy from '@ember/object/proxy';\n  \n    object = EmberObject.create({\n      name: 'Foo'\n    });\n  \n    proxy = ObjectProxy.create({\n      content: object\n    });\n  \n    // Access and change existing properties\n    proxy.get('name')          // 'Foo'\n    proxy.set('name', 'Bar');\n    object.get('name')         // 'Bar'\n  \n    // Create new 'description' property on `object`\n    proxy.set('description', 'Foo is a whizboo baz');\n    object.get('description')  // 'Foo is a whizboo baz'\n    ```\n  \n    While `content` is unset, setting a property to be delegated will throw an\n    Error.\n  \n    ```javascript\n    import ObjectProxy from '@ember/object/proxy';\n  \n    proxy = ObjectProxy.create({\n      content: null,\n      flag: null\n    });\n    proxy.set('flag', true);\n    proxy.get('flag');         // true\n    proxy.get('foo');          // undefined\n    proxy.set('foo', 'data');  // throws Error\n    ```\n  \n    Delegated properties can be bound to and will change when content is updated.\n  \n    Computed properties on the proxy itself can depend on delegated properties.\n  \n    ```javascript\n    import { computed } from '@ember/object';\n    import ObjectProxy from '@ember/object/proxy';\n  \n    ProxyWithComputedProperty = ObjectProxy.extend({\n      fullName: computed('firstName', 'lastName', function() {\n        var firstName = this.get('firstName'),\n            lastName = this.get('lastName');\n        if (firstName && lastName) {\n          return firstName + ' ' + lastName;\n        }\n        return firstName || lastName;\n      })\n    });\n  \n    proxy = ProxyWithComputedProperty.create();\n  \n    proxy.get('fullName');  // undefined\n    proxy.set('content', {\n      firstName: 'Tom', lastName: 'Dale'\n    }); // triggers property change for fullName on proxy\n  \n    proxy.get('fullName');  // 'Tom Dale'\n    ```\n  \n    @class ObjectProxy\n    @extends EmberObject\n    @uses Ember.ProxyMixin\n    @public\n  */\n  class ObjectProxy extends _object.default {}\n\n  _exports.default = ObjectProxy;\n  ObjectProxy.PrototypeMixin.reopen(_proxy.default);\n});","define(\"@ember/-internals/runtime/lib/type-of\", [\"exports\", \"@ember/-internals/runtime/lib/system/core_object\"], function (_exports, _core_object) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.typeOf = typeOf;\n  // ........................................\n  // TYPING & ARRAY MESSAGING\n  //\n  var TYPE_MAP = {\n    '[object Boolean]': 'boolean',\n    '[object Number]': 'number',\n    '[object String]': 'string',\n    '[object Function]': 'function',\n    '[object AsyncFunction]': 'function',\n    '[object Array]': 'array',\n    '[object Date]': 'date',\n    '[object RegExp]': 'regexp',\n    '[object Object]': 'object',\n    '[object FileList]': 'filelist'\n  };\n  var {\n    toString\n  } = Object.prototype;\n  /**\n   @module @ember/utils\n  */\n\n  /**\n    Returns a consistent type for the passed object.\n  \n    Use this instead of the built-in `typeof` to get the type of an item.\n    It will return the same result across all browsers and includes a bit\n    more detail. Here is what will be returned:\n  \n        | Return Value  | Meaning                                              |\n        |---------------|------------------------------------------------------|\n        | 'string'      | String primitive or String object.                   |\n        | 'number'      | Number primitive or Number object.                   |\n        | 'boolean'     | Boolean primitive or Boolean object.                 |\n        | 'null'        | Null value                                           |\n        | 'undefined'   | Undefined value                                      |\n        | 'function'    | A function                                           |\n        | 'array'       | An instance of Array                                 |\n        | 'regexp'      | An instance of RegExp                                |\n        | 'date'        | An instance of Date                                  |\n        | 'filelist'    | An instance of FileList                              |\n        | 'class'       | An Ember class (created using EmberObject.extend())  |\n        | 'instance'    | An Ember object instance                             |\n        | 'error'       | An instance of the Error object                      |\n        | 'object'      | A JavaScript object not inheriting from EmberObject  |\n  \n    Examples:\n  \n    ```javascript\n    import { A } from '@ember/array';\n    import { typeOf } from '@ember/utils';\n    import EmberObject from '@ember/object';\n  \n    typeOf();                       // 'undefined'\n    typeOf(null);                   // 'null'\n    typeOf(undefined);              // 'undefined'\n    typeOf('michael');              // 'string'\n    typeOf(new String('michael'));  // 'string'\n    typeOf(101);                    // 'number'\n    typeOf(new Number(101));        // 'number'\n    typeOf(true);                   // 'boolean'\n    typeOf(new Boolean(true));      // 'boolean'\n    typeOf(A);                      // 'function'\n    typeOf(A());                    // 'array'\n    typeOf([1, 2, 90]);             // 'array'\n    typeOf(/abc/);                  // 'regexp'\n    typeOf(new Date());             // 'date'\n    typeOf(event.target.files);     // 'filelist'\n    typeOf(EmberObject.extend());   // 'class'\n    typeOf(EmberObject.create());   // 'instance'\n    typeOf(new Error('teamocil'));  // 'error'\n  \n    // 'normal' JavaScript object\n    typeOf({ a: 'b' });             // 'object'\n    ```\n  \n    @method typeOf\n    @for @ember/utils\n    @param {Object} item the item to check\n    @return {String} the type\n    @public\n    @static\n  */\n\n  function typeOf(item) {\n    if (item === null) {\n      return 'null';\n    }\n\n    if (item === undefined) {\n      return 'undefined';\n    }\n\n    var ret = TYPE_MAP[toString.call(item)] || 'object';\n\n    if (ret === 'function') {\n      if (_core_object.default.detect(item)) {\n        ret = 'class';\n      }\n    } else if (ret === 'object') {\n      if (item instanceof Error) {\n        ret = 'error';\n      } else if (item instanceof _core_object.default) {\n        ret = 'instance';\n      } else if (item instanceof Date) {\n        ret = 'date';\n      }\n    }\n\n    return ret;\n  }\n});","define(\"@ember/-internals/utils/index\", [\"exports\", \"@ember/polyfills\", \"@ember/debug\"], function (_exports, _polyfills, _debug) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.symbol = symbol;\n  _exports.isInternalSymbol = isInternalSymbol;\n  _exports.dictionary = makeDictionary;\n  _exports.uuid = uuid;\n  _exports.generateGuid = generateGuid;\n  _exports.guidFor = guidFor;\n  _exports.intern = intern;\n  _exports.wrap = wrap;\n  _exports.getObservers = getObservers;\n  _exports.getListeners = getListeners;\n  _exports.setObservers = setObservers;\n  _exports.setListeners = setListeners;\n  _exports.inspect = inspect;\n  _exports.lookupDescriptor = lookupDescriptor;\n  _exports.canInvoke = canInvoke;\n  _exports.tryInvoke = tryInvoke;\n  _exports.makeArray = makeArray;\n  _exports.getName = getName;\n  _exports.setName = setName;\n  _exports.toString = toString;\n  _exports.isObject = isObject;\n  _exports.isProxy = isProxy;\n  _exports.setProxy = setProxy;\n  _exports.isEmberArray = isEmberArray;\n  _exports.setWithMandatorySetter = _exports.teardownMandatorySetter = _exports.setupMandatorySetter = _exports.EMBER_ARRAY = _exports.Cache = _exports.HAS_NATIVE_PROXY = _exports.HAS_NATIVE_SYMBOL = _exports.ROOT = _exports.checkHasSuper = _exports.GUID_KEY = _exports.getOwnPropertyDescriptors = _exports.getDebugName = void 0;\n\n  /**\n    Strongly hint runtimes to intern the provided string.\n  \n    When do I need to use this function?\n  \n    For the most part, never. Pre-mature optimization is bad, and often the\n    runtime does exactly what you need it to, and more often the trade-off isn't\n    worth it.\n  \n    Why?\n  \n    Runtimes store strings in at least 2 different representations:\n    Ropes and Symbols (interned strings). The Rope provides a memory efficient\n    data-structure for strings created from concatenation or some other string\n    manipulation like splitting.\n  \n    Unfortunately checking equality of different ropes can be quite costly as\n    runtimes must resort to clever string comparison algorithms. These\n    algorithms typically cost in proportion to the length of the string.\n    Luckily, this is where the Symbols (interned strings) shine. As Symbols are\n    unique by their string content, equality checks can be done by pointer\n    comparison.\n  \n    How do I know if my string is a rope or symbol?\n  \n    Typically (warning general sweeping statement, but truthy in runtimes at\n    present) static strings created as part of the JS source are interned.\n    Strings often used for comparisons can be interned at runtime if some\n    criteria are met.  One of these criteria can be the size of the entire rope.\n    For example, in chrome 38 a rope longer then 12 characters will not\n    intern, nor will segments of that rope.\n  \n    Some numbers: http://jsperf.com/eval-vs-keys/8\n  \n    Known Trick™\n  \n    @private\n    @return {String} interned version of the provided string\n  */\n  function intern(str) {\n    var obj = {};\n    obj[str] = 1;\n\n    for (var key in obj) {\n      if (key === str) {\n        return key;\n      }\n    }\n\n    return str;\n  }\n  /**\n    Returns whether Type(value) is Object.\n  \n    Useful for checking whether a value is a valid WeakMap key.\n  \n    Refs: https://tc39.github.io/ecma262/#sec-typeof-operator-runtime-semantics-evaluation\n          https://tc39.github.io/ecma262/#sec-weakmap.prototype.set\n  \n    @private\n    @function isObject\n  */\n\n\n  function isObject(value) {\n    return value !== null && (typeof value === 'object' || typeof value === 'function');\n  }\n  /**\n   @module @ember/object\n  */\n\n  /**\n   Previously we used `Ember.$.uuid`, however `$.uuid` has been removed from\n   jQuery master. We'll just bootstrap our own uuid now.\n  \n   @private\n   @return {Number} the uuid\n   */\n\n\n  var _uuid = 0;\n  /**\n   Generates a universally unique identifier. This method\n   is used internally by Ember for assisting with\n   the generation of GUID's and other unique identifiers.\n  \n   @public\n   @return {Number} [description]\n   */\n\n  function uuid() {\n    return ++_uuid;\n  }\n  /**\n   Prefix used for guids through out Ember.\n   @private\n   @property GUID_PREFIX\n   @for Ember\n   @type String\n   @final\n   */\n\n\n  var GUID_PREFIX = 'ember'; // Used for guid generation...\n\n  var OBJECT_GUIDS = new WeakMap();\n  var NON_OBJECT_GUIDS = new Map();\n  /**\n    A unique key used to assign guids and other private metadata to objects.\n    If you inspect an object in your browser debugger you will often see these.\n    They can be safely ignored.\n  \n    On browsers that support it, these properties are added with enumeration\n    disabled so they won't show up when you iterate over your properties.\n  \n    @private\n    @property GUID_KEY\n    @for Ember\n    @type String\n    @final\n  */\n\n  var GUID_KEY = intern(`__ember${Date.now()}`);\n  /**\n    Generates a new guid, optionally saving the guid to the object that you\n    pass in. You will rarely need to use this method. Instead you should\n    call `guidFor(obj)`, which return an existing guid if available.\n  \n    @private\n    @method generateGuid\n    @static\n    @for @ember/object/internals\n    @param {Object} [obj] Object the guid will be used for. If passed in, the guid will\n      be saved on the object and reused whenever you pass the same object\n      again.\n  \n      If no object is passed, just generate a new guid.\n    @param {String} [prefix] Prefix to place in front of the guid. Useful when you want to\n      separate the guid into separate namespaces.\n    @return {String} the guid\n  */\n\n  _exports.GUID_KEY = GUID_KEY;\n\n  function generateGuid(obj, prefix = GUID_PREFIX) {\n    var guid = prefix + uuid();\n\n    if (isObject(obj)) {\n      OBJECT_GUIDS.set(obj, guid);\n    }\n\n    return guid;\n  }\n  /**\n    Returns a unique id for the object. If the object does not yet have a guid,\n    one will be assigned to it. You can call this on any object,\n    `EmberObject`-based or not.\n  \n    You can also use this method on DOM Element objects.\n  \n    @public\n    @static\n    @method guidFor\n    @for @ember/object/internals\n    @param {Object} obj any object, string, number, Element, or primitive\n    @return {String} the unique guid for this instance.\n  */\n\n\n  function guidFor(value) {\n    var guid;\n\n    if (isObject(value)) {\n      guid = OBJECT_GUIDS.get(value);\n\n      if (guid === undefined) {\n        guid = GUID_PREFIX + uuid();\n        OBJECT_GUIDS.set(value, guid);\n      }\n    } else {\n      guid = NON_OBJECT_GUIDS.get(value);\n\n      if (guid === undefined) {\n        var type = typeof value;\n\n        if (type === 'string') {\n          guid = 'st' + uuid();\n        } else if (type === 'number') {\n          guid = 'nu' + uuid();\n        } else if (type === 'symbol') {\n          guid = 'sy' + uuid();\n        } else {\n          guid = '(' + value + ')';\n        }\n\n        NON_OBJECT_GUIDS.set(value, guid);\n      }\n    }\n\n    return guid;\n  }\n\n  var GENERATED_SYMBOLS = [];\n\n  function isInternalSymbol(possibleSymbol) {\n    return GENERATED_SYMBOLS.indexOf(possibleSymbol) !== -1;\n  }\n\n  function symbol(debugName) {\n    // TODO: Investigate using platform symbols, but we do not\n    // want to require non-enumerability for this API, which\n    // would introduce a large cost.\n    var id = GUID_KEY + Math.floor(Math.random() * Date.now());\n    var symbol = intern(`__${debugName}${id}__`);\n    GENERATED_SYMBOLS.push(symbol);\n    return symbol;\n  } // the delete is meant to hint at runtimes that this object should remain in\n  // dictionary mode. This is clearly a runtime specific hack, but currently it\n  // appears worthwhile in some usecases. Please note, these deletes do increase\n  // the cost of creation dramatically over a plain Object.create. And as this\n  // only makes sense for long-lived dictionaries that aren't instantiated often.\n\n\n  function makeDictionary(parent) {\n    var dict = Object.create(parent);\n    dict['_dict'] = null;\n    delete dict['_dict'];\n    return dict;\n  }\n\n  var getDebugName;\n\n  if (true\n  /* DEBUG */\n  ) {\n    var getFunctionName = fn => {\n      var functionName = fn.name;\n\n      if (functionName === undefined) {\n        var match = Function.prototype.toString.call(fn).match(/function (\\w+)\\s*\\(/);\n        functionName = match && match[1] || '';\n      }\n\n      return functionName.replace(/^bound /, '');\n    };\n\n    var getObjectName = obj => {\n      var name;\n      var className;\n\n      if (obj.constructor && obj.constructor !== Object) {\n        className = getFunctionName(obj.constructor);\n      }\n\n      if ('toString' in obj && obj.toString !== Object.prototype.toString && obj.toString !== Function.prototype.toString) {\n        name = obj.toString();\n      } // If the class has a decent looking name, and the `toString` is one of the\n      // default Ember toStrings, replace the constructor portion of the toString\n      // with the class name. We check the length of the class name to prevent doing\n      // this when the value is minified.\n\n\n      if (name && name.match(/<.*:ember\\d+>/) && className && className[0] !== '_' && className.length > 2 && className !== 'Class') {\n        return name.replace(/<.*:/, `<${className}:`);\n      }\n\n      return name || className;\n    };\n\n    var getPrimitiveName = value => {\n      return String(value);\n    };\n\n    getDebugName = value => {\n      if (typeof value === 'function') {\n        return getFunctionName(value) || `(unknown function)`;\n      } else if (typeof value === 'object' && value !== null) {\n        return getObjectName(value) || `(unknown object)`;\n      } else {\n        return getPrimitiveName(value);\n      }\n    };\n  }\n\n  var getDebugName$1 = getDebugName;\n  _exports.getDebugName = getDebugName$1;\n  var getOwnPropertyDescriptors;\n\n  if (Object.getOwnPropertyDescriptors !== undefined) {\n    getOwnPropertyDescriptors = Object.getOwnPropertyDescriptors;\n  } else {\n    getOwnPropertyDescriptors = function (obj) {\n      var descriptors = {};\n      Object.keys(obj).forEach(key => {\n        descriptors[key] = Object.getOwnPropertyDescriptor(obj, key);\n      });\n      return descriptors;\n    };\n  }\n\n  var getOwnPropertyDescriptors$1 = getOwnPropertyDescriptors;\n  _exports.getOwnPropertyDescriptors = getOwnPropertyDescriptors$1;\n  var HAS_SUPER_PATTERN = /\\.(_super|call\\(this|apply\\(this)/;\n  var fnToString = Function.prototype.toString;\n\n  var checkHasSuper = (() => {\n    var sourceAvailable = fnToString.call(function () {\n      return this;\n    }).indexOf('return this') > -1;\n\n    if (sourceAvailable) {\n      return function checkHasSuper(func) {\n        return HAS_SUPER_PATTERN.test(fnToString.call(func));\n      };\n    }\n\n    return function checkHasSuper() {\n      return true;\n    };\n  })();\n\n  _exports.checkHasSuper = checkHasSuper;\n  var HAS_SUPER_MAP = new WeakMap();\n  var ROOT = Object.freeze(function () {});\n  _exports.ROOT = ROOT;\n  HAS_SUPER_MAP.set(ROOT, false);\n\n  function hasSuper(func) {\n    var hasSuper = HAS_SUPER_MAP.get(func);\n\n    if (hasSuper === undefined) {\n      hasSuper = checkHasSuper(func);\n      HAS_SUPER_MAP.set(func, hasSuper);\n    }\n\n    return hasSuper;\n  }\n\n  var OBSERVERS_MAP = new WeakMap();\n\n  function setObservers(func, observers) {\n    OBSERVERS_MAP.set(func, observers);\n  }\n\n  function getObservers(func) {\n    return OBSERVERS_MAP.get(func);\n  }\n\n  var LISTENERS_MAP = new WeakMap();\n\n  function setListeners(func, listeners) {\n    if (listeners) {\n      LISTENERS_MAP.set(func, listeners);\n    }\n  }\n\n  function getListeners(func) {\n    return LISTENERS_MAP.get(func);\n  }\n\n  var IS_WRAPPED_FUNCTION_SET = new _polyfills._WeakSet();\n  /**\n    Wraps the passed function so that `this._super` will point to the superFunc\n    when the function is invoked. This is the primitive we use to implement\n    calls to super.\n  \n    @private\n    @method wrap\n    @for Ember\n    @param {Function} func The function to call\n    @param {Function} superFunc The super function.\n    @return {Function} wrapped function.\n  */\n\n  function wrap(func, superFunc) {\n    if (!hasSuper(func)) {\n      return func;\n    } // ensure an unwrapped super that calls _super is wrapped with a terminal _super\n\n\n    if (!IS_WRAPPED_FUNCTION_SET.has(superFunc) && hasSuper(superFunc)) {\n      return _wrap(func, _wrap(superFunc, ROOT));\n    }\n\n    return _wrap(func, superFunc);\n  }\n\n  function _wrap(func, superFunc) {\n    function superWrapper() {\n      var orig = this._super;\n      this._super = superFunc;\n      var ret = func.apply(this, arguments);\n      this._super = orig;\n      return ret;\n    }\n\n    IS_WRAPPED_FUNCTION_SET.add(superWrapper);\n    setObservers(superWrapper, getObservers(func));\n    setListeners(superWrapper, getListeners(func));\n    return superWrapper;\n  }\n\n  var {\n    toString: objectToString\n  } = Object.prototype;\n  var {\n    toString: functionToString\n  } = Function.prototype;\n  var {\n    isArray\n  } = Array;\n  var {\n    keys: objectKeys\n  } = Object;\n  var {\n    stringify\n  } = JSON;\n  var LIST_LIMIT = 100;\n  var DEPTH_LIMIT = 4;\n  var SAFE_KEY = /^[\\w$]+$/;\n  /**\n   @module @ember/debug\n  */\n\n  /**\n    Convenience method to inspect an object. This method will attempt to\n    convert the object into a useful string description.\n  \n    It is a pretty simple implementation. If you want something more robust,\n    use something like JSDump: https://github.com/NV/jsDump\n  \n    @method inspect\n    @static\n    @param {Object} obj The object you want to inspect.\n    @return {String} A description of the object\n    @since 1.4.0\n    @private\n  */\n\n  function inspect(obj) {\n    // detect Node util.inspect call inspect(depth: number, opts: object)\n    if (typeof obj === 'number' && arguments.length === 2) {\n      return this;\n    }\n\n    return inspectValue(obj, 0);\n  }\n\n  function inspectValue(value, depth, seen) {\n    var valueIsArray = false;\n\n    switch (typeof value) {\n      case 'undefined':\n        return 'undefined';\n\n      case 'object':\n        if (value === null) return 'null';\n\n        if (isArray(value)) {\n          valueIsArray = true;\n          break;\n        } // is toString Object.prototype.toString or undefined then traverse\n\n\n        if (value.toString === objectToString || value.toString === undefined) {\n          break;\n        } // custom toString\n\n\n        return value.toString();\n\n      case 'function':\n        return value.toString === functionToString ? value.name ? `[Function:${value.name}]` : `[Function]` : value.toString();\n\n      case 'string':\n        return stringify(value);\n\n      case 'symbol':\n      case 'boolean':\n      case 'number':\n      default:\n        return value.toString();\n    }\n\n    if (seen === undefined) {\n      seen = new _polyfills._WeakSet();\n    } else {\n      if (seen.has(value)) return `[Circular]`;\n    }\n\n    seen.add(value);\n    return valueIsArray ? inspectArray(value, depth + 1, seen) : inspectObject(value, depth + 1, seen);\n  }\n\n  function inspectKey(key) {\n    return SAFE_KEY.test(key) ? key : stringify(key);\n  }\n\n  function inspectObject(obj, depth, seen) {\n    if (depth > DEPTH_LIMIT) {\n      return '[Object]';\n    }\n\n    var s = '{';\n    var keys = objectKeys(obj);\n\n    for (var i = 0; i < keys.length; i++) {\n      s += i === 0 ? ' ' : ', ';\n\n      if (i >= LIST_LIMIT) {\n        s += `... ${keys.length - LIST_LIMIT} more keys`;\n        break;\n      }\n\n      var key = keys[i];\n      s += inspectKey(key) + ': ' + inspectValue(obj[key], depth, seen);\n    }\n\n    s += ' }';\n    return s;\n  }\n\n  function inspectArray(arr, depth, seen) {\n    if (depth > DEPTH_LIMIT) {\n      return '[Array]';\n    }\n\n    var s = '[';\n\n    for (var i = 0; i < arr.length; i++) {\n      s += i === 0 ? ' ' : ', ';\n\n      if (i >= LIST_LIMIT) {\n        s += `... ${arr.length - LIST_LIMIT} more items`;\n        break;\n      }\n\n      s += inspectValue(arr[i], depth, seen);\n    }\n\n    s += ' ]';\n    return s;\n  }\n\n  function lookupDescriptor(obj, keyName) {\n    var current = obj;\n\n    do {\n      var descriptor = Object.getOwnPropertyDescriptor(current, keyName);\n\n      if (descriptor !== undefined) {\n        return descriptor;\n      }\n\n      current = Object.getPrototypeOf(current);\n    } while (current !== null);\n\n    return null;\n  }\n  /**\n    Checks to see if the `methodName` exists on the `obj`.\n  \n    ```javascript\n    let foo = { bar: function() { return 'bar'; }, baz: null };\n  \n    Ember.canInvoke(foo, 'bar'); // true\n    Ember.canInvoke(foo, 'baz'); // false\n    Ember.canInvoke(foo, 'bat'); // false\n    ```\n  \n    @method canInvoke\n    @for Ember\n    @param {Object} obj The object to check for the method\n    @param {String} methodName The method name to check for\n    @return {Boolean}\n    @private\n  */\n\n\n  function canInvoke(obj, methodName) {\n    return obj !== null && obj !== undefined && typeof obj[methodName] === 'function';\n  }\n  /**\n    @module @ember/utils\n  */\n\n  /**\n    Checks to see if the `methodName` exists on the `obj`,\n    and if it does, invokes it with the arguments passed.\n  \n    ```javascript\n    import { tryInvoke } from '@ember/utils';\n  \n    let d = new Date('03/15/2013');\n  \n    tryInvoke(d, 'getTime');              // 1363320000000\n    tryInvoke(d, 'setFullYear', [2014]);  // 1394856000000\n    tryInvoke(d, 'noSuchMethod', [2014]); // undefined\n    ```\n  \n    @method tryInvoke\n    @for @ember/utils\n    @static\n    @param {Object} obj The object to check for the method\n    @param {String} methodName The method name to check for\n    @param {Array} [args] The arguments to pass to the method\n    @return {*} the return value of the invoked method or undefined if it cannot be invoked\n    @public\n  */\n\n\n  function tryInvoke(obj, methodName, args) {\n    if (canInvoke(obj, methodName)) {\n      var method = obj[methodName];\n      return method.apply(obj, args);\n    }\n  }\n\n  var {\n    isArray: isArray$1\n  } = Array;\n\n  function makeArray(obj) {\n    if (obj === null || obj === undefined) {\n      return [];\n    }\n\n    return isArray$1(obj) ? obj : [obj];\n  }\n\n  var NAMES = new WeakMap();\n\n  function setName(obj, name) {\n    if (isObject(obj)) NAMES.set(obj, name);\n  }\n\n  function getName(obj) {\n    return NAMES.get(obj);\n  }\n\n  var objectToString$1 = Object.prototype.toString;\n\n  function isNone(obj) {\n    return obj === null || obj === undefined;\n  }\n  /*\n   A `toString` util function that supports objects without a `toString`\n   method, e.g. an object created with `Object.create(null)`.\n  */\n\n\n  function toString(obj) {\n    if (typeof obj === 'string') {\n      return obj;\n    }\n\n    if (null === obj) return 'null';\n    if (undefined === obj) return 'undefined';\n\n    if (Array.isArray(obj)) {\n      // Reimplement Array.prototype.join according to spec (22.1.3.13)\n      // Changing ToString(element) with this safe version of ToString.\n      var r = '';\n\n      for (var k = 0; k < obj.length; k++) {\n        if (k > 0) {\n          r += ',';\n        }\n\n        if (!isNone(obj[k])) {\n          r += toString(obj[k]);\n        }\n      }\n\n      return r;\n    }\n\n    if (typeof obj.toString === 'function') {\n      return obj.toString();\n    }\n\n    return objectToString$1.call(obj);\n  }\n\n  var HAS_NATIVE_SYMBOL = function () {\n    if (typeof Symbol !== 'function') {\n      return false;\n    }\n\n    return typeof Symbol() === 'symbol';\n  }();\n\n  _exports.HAS_NATIVE_SYMBOL = HAS_NATIVE_SYMBOL;\n  var HAS_NATIVE_PROXY = typeof Proxy === 'function';\n  _exports.HAS_NATIVE_PROXY = HAS_NATIVE_PROXY;\n  var PROXIES = new _polyfills._WeakSet();\n\n  function isProxy(value) {\n    if (isObject(value)) {\n      return PROXIES.has(value);\n    }\n\n    return false;\n  }\n\n  function setProxy(object) {\n    if (isObject(object)) {\n      PROXIES.add(object);\n    }\n  }\n\n  class Cache {\n    constructor(limit, func, store) {\n      this.limit = limit;\n      this.func = func;\n      this.store = store;\n      this.size = 0;\n      this.misses = 0;\n      this.hits = 0;\n      this.store = store || new Map();\n    }\n\n    get(key) {\n      if (this.store.has(key)) {\n        this.hits++;\n        return this.store.get(key);\n      } else {\n        this.misses++;\n        return this.set(key, this.func(key));\n      }\n    }\n\n    set(key, value) {\n      if (this.limit > this.size) {\n        this.size++;\n        this.store.set(key, value);\n      }\n\n      return value;\n    }\n\n    purge() {\n      this.store.clear();\n      this.size = 0;\n      this.hits = 0;\n      this.misses = 0;\n    }\n\n  }\n\n  _exports.Cache = Cache;\n  var EMBER_ARRAY = symbol('EMBER_ARRAY');\n  _exports.EMBER_ARRAY = EMBER_ARRAY;\n\n  function isEmberArray(obj) {\n    return obj && obj[EMBER_ARRAY];\n  }\n\n  var setupMandatorySetter;\n  _exports.setupMandatorySetter = setupMandatorySetter;\n  var teardownMandatorySetter;\n  _exports.teardownMandatorySetter = teardownMandatorySetter;\n  var setWithMandatorySetter;\n  _exports.setWithMandatorySetter = setWithMandatorySetter;\n\n  function isElementKey(key) {\n    return typeof key === 'number' ? isPositiveInt(key) : isStringInt(key);\n  }\n\n  function isStringInt(str) {\n    var num = parseInt(str, 10);\n    return isPositiveInt(num) && str === String(num);\n  }\n\n  function isPositiveInt(num) {\n    return num >= 0 && num % 1 === 0;\n  }\n\n  if (true\n  /* DEBUG */\n  ) {\n    var SEEN_TAGS = new _polyfills._WeakSet();\n    var MANDATORY_SETTERS = new WeakMap();\n\n    var _propertyIsEnumerable = function (obj, key) {\n      return Object.prototype.propertyIsEnumerable.call(obj, key);\n    };\n\n    _exports.setupMandatorySetter = setupMandatorySetter = function (tag, obj, keyName) {\n      if (SEEN_TAGS.has(tag)) {\n        return;\n      }\n\n      SEEN_TAGS.add(tag);\n\n      if (Array.isArray(obj) && isElementKey(keyName)) {\n        return;\n      }\n\n      var desc = lookupDescriptor(obj, keyName) || {};\n\n      if (desc.get || desc.set) {\n        // if it has a getter or setter, we can't install the mandatory setter.\n        // native setters are allowed, we have to assume that they will resolve\n        // to tracked properties.\n        return;\n      }\n\n      if (desc && (!desc.configurable || !desc.writable)) {\n        // if it isn't writable anyways, so we shouldn't provide the setter.\n        // if it isn't configurable, we can't overwrite it anyways.\n        return;\n      }\n\n      var setters = MANDATORY_SETTERS.get(obj);\n\n      if (setters === undefined) {\n        setters = {};\n        MANDATORY_SETTERS.set(obj, setters);\n      }\n\n      desc.hadOwnProperty = Object.hasOwnProperty.call(obj, keyName);\n      setters[keyName] = desc;\n      Object.defineProperty(obj, keyName, {\n        configurable: true,\n        enumerable: _propertyIsEnumerable(obj, keyName),\n\n        get() {\n          if (desc.get) {\n            return desc.get.call(this);\n          } else {\n            return desc.value;\n          }\n        },\n\n        set(value) {\n          (true && !(false) && (0, _debug.assert)(`You attempted to update ${this}.${String(keyName)} to \"${String(value)}\", but it is being tracked by a tracking context, such as a template, computed property, or observer. In order to make sure the context updates properly, you must invalidate the property when updating it. You can mark the property as \\`@tracked\\`, or use \\`@ember/object#set\\` to do this.`));\n        }\n\n      });\n    };\n\n    _exports.teardownMandatorySetter = teardownMandatorySetter = function (obj, keyName) {\n      var setters = MANDATORY_SETTERS.get(obj);\n\n      if (setters !== undefined && setters[keyName] !== undefined) {\n        Object.defineProperty(obj, keyName, setters[keyName]);\n        setters[keyName] = undefined;\n      }\n    };\n\n    _exports.setWithMandatorySetter = setWithMandatorySetter = function (obj, keyName, value) {\n      var setters = MANDATORY_SETTERS.get(obj);\n\n      if (setters !== undefined && setters[keyName] !== undefined) {\n        var setter = setters[keyName];\n\n        if (setter.set) {\n          setter.set.call(obj, value);\n        } else {\n          setter.value = value; // If the object didn't have own property before, it would have changed\n          // the enumerability after setting the value the first time.\n\n          if (!setter.hadOwnProperty) {\n            var desc = lookupDescriptor(obj, keyName);\n            desc.enumerable = true;\n            Object.defineProperty(obj, keyName, desc);\n          }\n        }\n      } else {\n        obj[keyName] = value;\n      }\n    };\n  }\n  /*\n   This package will be eagerly parsed and should have no dependencies on external\n   packages.\n  \n   It is intended to be used to share utility methods that will be needed\n   by every Ember application (and is **not** a dumping ground of useful utilities).\n  \n   Utility methods that are needed in < 80% of cases should be placed\n   elsewhere (so they can be lazily evaluated / parsed).\n  */\n\n});","define(\"@ember/-internals/views/index\", [\"exports\", \"@ember/-internals/views/lib/system/jquery\", \"@ember/-internals/views/lib/system/utils\", \"@ember/-internals/views/lib/system/event_dispatcher\", \"@ember/-internals/views/lib/component_lookup\", \"@ember/-internals/views/lib/mixins/text_support\", \"@ember/-internals/views/lib/views/core_view\", \"@ember/-internals/views/lib/mixins/class_names_support\", \"@ember/-internals/views/lib/mixins/child_views_support\", \"@ember/-internals/views/lib/mixins/view_state_support\", \"@ember/-internals/views/lib/mixins/view_support\", \"@ember/-internals/views/lib/mixins/action_support\", \"@ember/-internals/views/lib/compat/attrs\", \"@ember/-internals/views/lib/system/action_manager\"], function (_exports, _jquery, _utils, _event_dispatcher, _component_lookup, _text_support, _core_view, _class_names_support, _child_views_support, _view_state_support, _view_support, _action_support, _attrs, _action_manager) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"jQuery\", {\n    enumerable: true,\n    get: function () {\n      return _jquery.jQuery;\n    }\n  });\n  Object.defineProperty(_exports, \"jQueryDisabled\", {\n    enumerable: true,\n    get: function () {\n      return _jquery.jQueryDisabled;\n    }\n  });\n  Object.defineProperty(_exports, \"addChildView\", {\n    enumerable: true,\n    get: function () {\n      return _utils.addChildView;\n    }\n  });\n  Object.defineProperty(_exports, \"isSimpleClick\", {\n    enumerable: true,\n    get: function () {\n      return _utils.isSimpleClick;\n    }\n  });\n  Object.defineProperty(_exports, \"getViewBounds\", {\n    enumerable: true,\n    get: function () {\n      return _utils.getViewBounds;\n    }\n  });\n  Object.defineProperty(_exports, \"getViewClientRects\", {\n    enumerable: true,\n    get: function () {\n      return _utils.getViewClientRects;\n    }\n  });\n  Object.defineProperty(_exports, \"getViewBoundingClientRect\", {\n    enumerable: true,\n    get: function () {\n      return _utils.getViewBoundingClientRect;\n    }\n  });\n  Object.defineProperty(_exports, \"getRootViews\", {\n    enumerable: true,\n    get: function () {\n      return _utils.getRootViews;\n    }\n  });\n  Object.defineProperty(_exports, \"getChildViews\", {\n    enumerable: true,\n    get: function () {\n      return _utils.getChildViews;\n    }\n  });\n  Object.defineProperty(_exports, \"getViewId\", {\n    enumerable: true,\n    get: function () {\n      return _utils.getViewId;\n    }\n  });\n  Object.defineProperty(_exports, \"getElementView\", {\n    enumerable: true,\n    get: function () {\n      return _utils.getElementView;\n    }\n  });\n  Object.defineProperty(_exports, \"getViewElement\", {\n    enumerable: true,\n    get: function () {\n      return _utils.getViewElement;\n    }\n  });\n  Object.defineProperty(_exports, \"setElementView\", {\n    enumerable: true,\n    get: function () {\n      return _utils.setElementView;\n    }\n  });\n  Object.defineProperty(_exports, \"setViewElement\", {\n    enumerable: true,\n    get: function () {\n      return _utils.setViewElement;\n    }\n  });\n  Object.defineProperty(_exports, \"clearElementView\", {\n    enumerable: true,\n    get: function () {\n      return _utils.clearElementView;\n    }\n  });\n  Object.defineProperty(_exports, \"clearViewElement\", {\n    enumerable: true,\n    get: function () {\n      return _utils.clearViewElement;\n    }\n  });\n  Object.defineProperty(_exports, \"constructStyleDeprecationMessage\", {\n    enumerable: true,\n    get: function () {\n      return _utils.constructStyleDeprecationMessage;\n    }\n  });\n  Object.defineProperty(_exports, \"EventDispatcher\", {\n    enumerable: true,\n    get: function () {\n      return _event_dispatcher.default;\n    }\n  });\n  Object.defineProperty(_exports, \"ComponentLookup\", {\n    enumerable: true,\n    get: function () {\n      return _component_lookup.default;\n    }\n  });\n  Object.defineProperty(_exports, \"TextSupport\", {\n    enumerable: true,\n    get: function () {\n      return _text_support.default;\n    }\n  });\n  Object.defineProperty(_exports, \"CoreView\", {\n    enumerable: true,\n    get: function () {\n      return _core_view.default;\n    }\n  });\n  Object.defineProperty(_exports, \"ClassNamesSupport\", {\n    enumerable: true,\n    get: function () {\n      return _class_names_support.default;\n    }\n  });\n  Object.defineProperty(_exports, \"ChildViewsSupport\", {\n    enumerable: true,\n    get: function () {\n      return _child_views_support.default;\n    }\n  });\n  Object.defineProperty(_exports, \"ViewStateSupport\", {\n    enumerable: true,\n    get: function () {\n      return _view_state_support.default;\n    }\n  });\n  Object.defineProperty(_exports, \"ViewMixin\", {\n    enumerable: true,\n    get: function () {\n      return _view_support.default;\n    }\n  });\n  Object.defineProperty(_exports, \"ActionSupport\", {\n    enumerable: true,\n    get: function () {\n      return _action_support.default;\n    }\n  });\n  Object.defineProperty(_exports, \"MUTABLE_CELL\", {\n    enumerable: true,\n    get: function () {\n      return _attrs.MUTABLE_CELL;\n    }\n  });\n  Object.defineProperty(_exports, \"ActionManager\", {\n    enumerable: true,\n    get: function () {\n      return _action_manager.default;\n    }\n  });\n});","define(\"@ember/-internals/views/lib/compat/attrs\", [\"exports\", \"@ember/-internals/utils\"], function (_exports, _utils) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.MUTABLE_CELL = void 0;\n  var MUTABLE_CELL = (0, _utils.symbol)('MUTABLE_CELL');\n  _exports.MUTABLE_CELL = MUTABLE_CELL;\n});","define(\"@ember/-internals/views/lib/compat/fallback-view-registry\", [\"exports\", \"@ember/-internals/utils\"], function (_exports, _utils) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  var _default = (0, _utils.dictionary)(null);\n\n  _exports.default = _default;\n});","define(\"@ember/-internals/views/lib/component_lookup\", [\"exports\", \"@ember/-internals/runtime\"], function (_exports, _runtime) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  var _default = _runtime.Object.extend({\n    componentFor(name, owner, options) {\n      var fullName = `component:${name}`;\n      return owner.factoryFor(fullName, options);\n    },\n\n    layoutFor(name, owner, options) {\n      var templateFullName = `template:components/${name}`;\n      return owner.lookup(templateFullName, options);\n    }\n\n  });\n\n  _exports.default = _default;\n});","define(\"@ember/-internals/views/lib/mixins/action_support\", [\"exports\", \"@ember/-internals/utils\", \"@ember/-internals/metal\", \"@ember/debug\", \"@ember/-internals/views/lib/compat/attrs\", \"@ember/deprecated-features\"], function (_exports, _utils, _metal, _debug, _attrs, _deprecatedFeatures) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n   @module ember\n  */\n  var mixinObj = {\n    send(actionName, ...args) {\n      (true && !(!this.isDestroying && !this.isDestroyed) && (0, _debug.assert)(`Attempted to call .send() with the action '${actionName}' on the destroyed object '${this}'.`, !this.isDestroying && !this.isDestroyed));\n      var action = this.actions && this.actions[actionName];\n\n      if (action) {\n        var shouldBubble = action.apply(this, args) === true;\n\n        if (!shouldBubble) {\n          return;\n        }\n      }\n\n      var target = (0, _metal.get)(this, 'target');\n\n      if (target) {\n        (true && !(typeof target.send === 'function') && (0, _debug.assert)(`The \\`target\\` for ${this} (${target}) does not have a \\`send\\` method`, typeof target.send === 'function'));\n        target.send(...arguments);\n      } else {\n        (true && !(action) && (0, _debug.assert)(`${(0, _utils.inspect)(this)} had no action handler for: ${actionName}`, action));\n      }\n    }\n\n  };\n\n  if (_deprecatedFeatures.SEND_ACTION) {\n    /**\n      Calls an action passed to a component.\n       For example a component for playing or pausing music may translate click events\n      into action notifications of \"play\" or \"stop\" depending on some internal state\n      of the component:\n       ```app/components/play-button.js\n      import Component from '@ember/component';\n       export default Component.extend({\n        click() {\n          if (this.get('isPlaying')) {\n            this.sendAction('play');\n          } else {\n            this.sendAction('stop');\n          }\n        }\n      });\n      ```\n       The actions \"play\" and \"stop\" must be passed to this `play-button` component:\n       ```handlebars\n      {{! app/templates/application.hbs }}\n      {{play-button play=(action \"musicStarted\") stop=(action \"musicStopped\")}}\n      ```\n       When the component receives a browser `click` event it translate this\n      interaction into application-specific semantics (\"play\" or \"stop\") and\n      calls the specified action.\n       ```app/controller/application.js\n      import Controller from '@ember/controller';\n       export default Controller.extend({\n        actions: {\n          musicStarted() {\n            // called when the play button is clicked\n            // and the music started playing\n          },\n          musicStopped() {\n            // called when the play button is clicked\n            // and the music stopped playing\n          }\n        }\n      });\n      ```\n       If no action is passed to `sendAction` a default name of \"action\"\n      is assumed.\n       ```app/components/next-button.js\n      import Component from '@ember/component';\n       export default Component.extend({\n        click() {\n          this.sendAction();\n        }\n      });\n      ```\n       ```handlebars\n      {{! app/templates/application.hbs }}\n      {{next-button action=(action \"playNextSongInAlbum\")}}\n      ```\n       ```app/controllers/application.js\n      import Controller from '@ember/controller';\n       export default Controller.extend({\n        actions: {\n          playNextSongInAlbum() {\n            ...\n          }\n        }\n      });\n      ```\n       @method sendAction\n      @param [action] {String} the action to call\n      @param [params] {*} arguments for the action\n      @public\n      @deprecated\n    */\n    var sendAction = function sendAction(action, ...contexts) {\n      (true && !(!this.isDestroying && !this.isDestroyed) && (0, _debug.assert)(`Attempted to call .sendAction() with the action '${action}' on the destroyed object '${this}'.`, !this.isDestroying && !this.isDestroyed));\n      (true && !(false) && (0, _debug.deprecate)(`You called ${(0, _utils.inspect)(this)}.sendAction(${typeof action === 'string' ? `\"${action}\"` : ''}) but Component#sendAction is deprecated. Please use closure actions instead.`, false, {\n        id: 'ember-component.send-action',\n        until: '4.0.0',\n        url: 'https://emberjs.com/deprecations/v3.x#toc_ember-component-send-action'\n      }));\n      var actionName; // Send the default action\n\n      if (action === undefined) {\n        action = 'action';\n      }\n\n      actionName = (0, _metal.get)(this, `attrs.${action}`) || (0, _metal.get)(this, action);\n      actionName = validateAction(this, actionName); // If no action name for that action could be found, just abort.\n\n      if (actionName === undefined) {\n        return;\n      }\n\n      if (typeof actionName === 'function') {\n        actionName(...contexts);\n      } else {\n        this.triggerAction({\n          action: actionName,\n          actionContext: contexts\n        });\n      }\n    };\n\n    var validateAction = function validateAction(component, actionName) {\n      if (actionName && actionName[_attrs.MUTABLE_CELL]) {\n        actionName = actionName.value;\n      }\n\n      (true && !(actionName === null || actionName === undefined || typeof actionName === 'string' || typeof actionName === 'function') && (0, _debug.assert)(`The default action was triggered on the component ${component.toString()}, but the action name (${actionName}) was not a string.`, actionName === null || actionName === undefined || typeof actionName === 'string' || typeof actionName === 'function'));\n      return actionName;\n    };\n\n    mixinObj.sendAction = sendAction;\n  }\n  /**\n   @class ActionSupport\n   @namespace Ember\n   @private\n  */\n\n\n  var _default = _metal.Mixin.create(mixinObj);\n\n  _exports.default = _default;\n});","define(\"@ember/-internals/views/lib/mixins/child_views_support\", [\"exports\", \"@ember/-internals/metal\", \"@ember/-internals/views/lib/system/utils\"], function (_exports, _metal, _utils) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n  @module ember\n  */\n  var _default = _metal.Mixin.create({\n    /**\n      Array of child views. You should never edit this array directly.\n       @property childViews\n      @type Array\n      @default []\n      @private\n    */\n    childViews: (0, _metal.nativeDescDecorator)({\n      configurable: false,\n      enumerable: false,\n\n      get() {\n        return (0, _utils.getChildViews)(this);\n      }\n\n    }),\n\n    appendChild(view) {\n      (0, _utils.addChildView)(this, view);\n    }\n\n  });\n\n  _exports.default = _default;\n});","define(\"@ember/-internals/views/lib/mixins/class_names_support\", [\"exports\", \"@ember/-internals/metal\", \"@ember/debug\"], function (_exports, _metal, _debug) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n  @module ember\n  */\n  var EMPTY_ARRAY = Object.freeze([]);\n  /**\n    @class ClassNamesSupport\n    @namespace Ember\n    @private\n  */\n\n  var _default = _metal.Mixin.create({\n    concatenatedProperties: ['classNames', 'classNameBindings'],\n\n    init() {\n      this._super(...arguments);\n\n      (true && !((0, _metal.descriptorForProperty)(this, 'classNameBindings') === undefined && Array.isArray(this.classNameBindings)) && (0, _debug.assert)(`Only arrays are allowed for 'classNameBindings'`, (0, _metal.descriptorForProperty)(this, 'classNameBindings') === undefined && Array.isArray(this.classNameBindings)));\n      (true && !((0, _metal.descriptorForProperty)(this, 'classNames') === undefined && Array.isArray(this.classNames)) && (0, _debug.assert)(`Only arrays of static class strings are allowed for 'classNames'. For dynamic classes, use 'classNameBindings'.`, (0, _metal.descriptorForProperty)(this, 'classNames') === undefined && Array.isArray(this.classNames)));\n    },\n\n    /**\n      Standard CSS class names to apply to the view's outer element. This\n      property automatically inherits any class names defined by the view's\n      superclasses as well.\n       @property classNames\n      @type Array\n      @default ['ember-view']\n      @public\n    */\n    classNames: EMPTY_ARRAY,\n\n    /**\n      A list of properties of the view to apply as class names. If the property\n      is a string value, the value of that string will be applied as a class\n      name.\n       ```javascript\n      // Applies the 'high' class to the view element\n      import Component from '@ember/component';\n      Component.extend({\n        classNameBindings: ['priority'],\n        priority: 'high'\n      });\n      ```\n       If the value of the property is a Boolean, the name of that property is\n      added as a dasherized class name.\n       ```javascript\n      // Applies the 'is-urgent' class to the view element\n      import Component from '@ember/component';\n      Component.extend({\n        classNameBindings: ['isUrgent'],\n        isUrgent: true\n      });\n      ```\n       If you would prefer to use a custom value instead of the dasherized\n      property name, you can pass a binding like this:\n       ```javascript\n      // Applies the 'urgent' class to the view element\n      import Component from '@ember/component';\n      Component.extend({\n        classNameBindings: ['isUrgent:urgent'],\n        isUrgent: true\n      });\n      ```\n       If you would like to specify a class that should only be added when the\n      property is false, you can declare a binding like this:\n       ```javascript\n      // Applies the 'disabled' class to the view element\n      import Component from '@ember/component';\n      Component.extend({\n        classNameBindings: ['isEnabled::disabled'],\n        isEnabled: false\n      });\n      ```\n       This list of properties is inherited from the component's superclasses as well.\n       @property classNameBindings\n      @type Array\n      @default []\n      @public\n    */\n    classNameBindings: EMPTY_ARRAY\n  });\n\n  _exports.default = _default;\n});","define(\"@ember/-internals/views/lib/mixins/text_support\", [\"exports\", \"@ember/-internals/metal\", \"@ember/-internals/runtime\", \"@ember/debug\", \"@ember/deprecated-features\"], function (_exports, _metal, _runtime, _debug, _deprecatedFeatures) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n  @module ember\n  */\n  var KEY_EVENTS = {\n    13: 'insertNewline',\n    27: 'cancel'\n  };\n  /**\n    `TextSupport` is a shared mixin used by both `TextField` and\n    `TextArea`. `TextSupport` adds a number of methods that allow you to\n    specify a controller action to invoke when a certain event is fired on your\n    text field or textarea. The specified controller action would get the current\n    value of the field passed in as the only argument unless the value of\n    the field is empty. In that case, the instance of the field itself is passed\n    in as the only argument.\n  \n    Let's use the pressing of the escape key as an example. If you wanted to\n    invoke a controller action when a user presses the escape key while on your\n    field, you would use the `escape-press` attribute on your field like so:\n  \n    ```handlebars\n      {{! application.hbs}}\n  \n      {{input escape-press='alertUser'}}\n    ```\n  \n    ```javascript\n        import Application from '@ember/application';\n        import Controller from '@ember/controller';\n        App = Application.create();\n  \n        App.ApplicationController = Controller.extend({\n          actions: {\n            alertUser: function ( currentValue ) {\n              alert( 'escape pressed, current value: ' + currentValue );\n            }\n          }\n        });\n    ```\n  \n    The following chart is a visual representation of what takes place when the\n    escape key is pressed in this scenario:\n  \n    ```\n    The Template\n    +---------------------------+\n    |                           |\n    | escape-press='alertUser'  |\n    |                           |          TextSupport Mixin\n    +----+----------------------+          +-------------------------------+\n         |                                 | cancel method                 |\n         |      escape button pressed      |                               |\n         +-------------------------------> | checks for the `escape-press` |\n                                           | attribute and pulls out the   |\n         +-------------------------------+ | `alertUser` value             |\n         |     action name 'alertUser'     +-------------------------------+\n         |     sent to controller\n         v\n    Controller\n    +------------------------------------------ +\n    |                                           |\n    |  actions: {                               |\n    |     alertUser: function( currentValue ){  |\n    |       alert( 'the esc key was pressed!' ) |\n    |     }                                     |\n    |  }                                        |\n    |                                           |\n    +-------------------------------------------+\n    ```\n  \n    Here are the events that we currently support along with the name of the\n    attribute you would need to use on your field. To reiterate, you would use the\n    attribute name like so:\n  \n    ```handlebars\n      {{input attribute-name='controllerAction'}}\n    ```\n  \n    ```\n    +--------------------+----------------+\n    |                    |                |\n    | event              | attribute name |\n    +--------------------+----------------+\n    | new line inserted  | insert-newline |\n    |                    |                |\n    | enter key pressed  | enter          |\n    |                    |                |\n    | cancel key pressed | escape-press   |\n    |                    |                |\n    | focusin            | focus-in       |\n    |                    |                |\n    | focusout           | focus-out      |\n    |                    |                |\n    | keypress           | key-press      |\n    |                    |                |\n    | keyup              | key-up         |\n    |                    |                |\n    | keydown            | key-down       |\n    +--------------------+----------------+\n    ```\n  \n    @class TextSupport\n    @namespace Ember\n    @uses Ember.TargetActionSupport\n    @extends Mixin\n    @private\n  */\n\n  var _default = _metal.Mixin.create(_runtime.TargetActionSupport, {\n    value: '',\n    attributeBindings: ['autocapitalize', 'autocorrect', 'autofocus', 'disabled', 'form', 'maxlength', 'minlength', 'placeholder', 'readonly', 'required', 'selectionDirection', 'spellcheck', 'tabindex', 'title'],\n    placeholder: null,\n    disabled: false,\n    maxlength: null,\n\n    init() {\n      this._super(...arguments);\n\n      this.on('paste', this, this._elementValueDidChange);\n      this.on('cut', this, this._elementValueDidChange);\n      this.on('input', this, this._elementValueDidChange);\n    },\n\n    /**\n      Whether the `keyUp` event that triggers an `action` to be sent continues\n      propagating to other views.\n       By default, when the user presses the return key on their keyboard and\n      the text field has an `action` set, the action will be sent to the view's\n      controller and the key event will stop propagating.\n       If you would like parent views to receive the `keyUp` event even after an\n      action has been dispatched, set `bubbles` to true.\n       @property bubbles\n      @type Boolean\n      @default false\n      @private\n    */\n    bubbles: false,\n\n    interpretKeyEvents(event) {\n      var map = KEY_EVENTS;\n      var method = map[event.keyCode];\n\n      this._elementValueDidChange();\n\n      if (method) {\n        return this[method](event);\n      }\n    },\n\n    _elementValueDidChange() {\n      (0, _metal.set)(this, 'value', this.element.value);\n    },\n\n    change(event) {\n      this._elementValueDidChange(event);\n    },\n\n    /**\n      Allows you to specify a controller action to invoke when either the `enter`\n      key is pressed or, in the case of the field being a textarea, when a newline\n      is inserted. To use this method, give your field an `insert-newline`\n      attribute. The value of that attribute should be the name of the action\n      in your controller that you wish to invoke.\n       For an example on how to use the `insert-newline` attribute, please\n      reference the example near the top of this file.\n       @method insertNewline\n      @param {Event} event\n      @private\n    */\n    insertNewline(event) {\n      sendAction('enter', this, event);\n      sendAction('insert-newline', this, event);\n    },\n\n    /**\n      Allows you to specify a controller action to invoke when the escape button\n      is pressed. To use this method, give your field an `escape-press`\n      attribute. The value of that attribute should be the name of the action\n      in your controller that you wish to invoke.\n       For an example on how to use the `escape-press` attribute, please reference\n      the example near the top of this file.\n       @method cancel\n      @param {Event} event\n      @private\n    */\n    cancel(event) {\n      sendAction('escape-press', this, event);\n    },\n\n    /**\n      Allows you to specify a controller action to invoke when a field receives\n      focus. To use this method, give your field a `focus-in` attribute. The value\n      of that attribute should be the name of the action in your controller\n      that you wish to invoke.\n       For an example on how to use the `focus-in` attribute, please reference the\n      example near the top of this file.\n       @method focusIn\n      @param {Event} event\n      @private\n    */\n    focusIn(event) {\n      sendAction('focus-in', this, event);\n    },\n\n    /**\n      Allows you to specify a controller action to invoke when a field loses\n      focus. To use this method, give your field a `focus-out` attribute. The value\n      of that attribute should be the name of the action in your controller\n      that you wish to invoke.\n       For an example on how to use the `focus-out` attribute, please reference the\n      example near the top of this file.\n       @method focusOut\n      @param {Event} event\n      @private\n    */\n    focusOut(event) {\n      this._elementValueDidChange(event);\n\n      sendAction('focus-out', this, event);\n    },\n\n    /**\n      Allows you to specify a controller action to invoke when a key is pressed.\n      To use this method, give your field a `key-press` attribute. The value of\n      that attribute should be the name of the action in your controller you\n      that wish to invoke.\n       For an example on how to use the `key-press` attribute, please reference the\n      example near the top of this file.\n       @method keyPress\n      @param {Event} event\n      @private\n    */\n    keyPress(event) {\n      sendAction('key-press', this, event);\n    },\n\n    /**\n      Allows you to specify a controller action to invoke when a key-up event is\n      fired. To use this method, give your field a `key-up` attribute. The value\n      of that attribute should be the name of the action in your controller\n      that you wish to invoke.\n       For an example on how to use the `key-up` attribute, please reference the\n      example near the top of this file.\n       @method keyUp\n      @param {Event} event\n      @private\n    */\n    keyUp(event) {\n      this.interpretKeyEvents(event);\n      sendAction('key-up', this, event);\n    },\n\n    /**\n      Allows you to specify a controller action to invoke when a key-down event is\n      fired. To use this method, give your field a `key-down` attribute. The value\n      of that attribute should be the name of the action in your controller that\n      you wish to invoke.\n       For an example on how to use the `key-down` attribute, please reference the\n      example near the top of this file.\n       @method keyDown\n      @param {Event} event\n      @private\n    */\n    keyDown(event) {\n      sendAction('key-down', this, event);\n    }\n\n  }); // In principle, this shouldn't be necessary, but the legacy\n  // sendAction semantics for TextField are different from\n  // the component semantics so this method normalizes them.\n\n\n  _exports.default = _default;\n\n  function sendAction(eventName, view, event) {\n    var actionName = (0, _metal.get)(view, `attrs.${eventName}`) || (0, _metal.get)(view, eventName);\n    var value = (0, _metal.get)(view, 'value');\n\n    if (_deprecatedFeatures.SEND_ACTION && typeof actionName === 'string') {\n      var message = `Passing actions to components as strings (like \\`<Input @${eventName}=\"${actionName}\" />\\`) is deprecated. Please use closure actions instead (\\`<Input @${eventName}={{action \"${actionName}\"}} />\\`).`;\n      (true && !(false) && (0, _debug.deprecate)(message, false, {\n        id: 'ember-component.send-action',\n        until: '4.0.0',\n        url: 'https://emberjs.com/deprecations/v3.x#toc_ember-component-send-action'\n      }));\n      view.triggerAction({\n        action: actionName,\n        actionContext: [value, event]\n      });\n    } else if (typeof actionName === 'function') {\n      actionName(value, event);\n    }\n\n    if (actionName && !(0, _metal.get)(view, 'bubbles')) {\n      event.stopPropagation();\n    }\n  }\n});","define(\"@ember/-internals/views/lib/mixins/view_state_support\", [\"exports\", \"@ember/-internals/metal\"], function (_exports, _metal) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n  @module ember\n  */\n  var _default = _metal.Mixin.create({\n    _transitionTo(state) {\n      var priorState = this._currentState;\n      var currentState = this._currentState = this._states[state];\n      this._state = state;\n\n      if (priorState && priorState.exit) {\n        priorState.exit(this);\n      }\n\n      if (currentState.enter) {\n        currentState.enter(this);\n      }\n    }\n\n  });\n\n  _exports.default = _default;\n});","define(\"@ember/-internals/views/lib/mixins/view_support\", [\"exports\", \"@ember/-internals/utils\", \"@ember/-internals/metal\", \"@ember/debug\", \"@ember/-internals/browser-environment\", \"@ember/-internals/views/lib/system/utils\", \"@ember/-internals/views/lib/system/jquery\", \"@ember/deprecated-features\"], function (_exports, _utils, _metal, _debug, _browserEnvironment, _utils2, _jquery, _deprecatedFeatures) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  function K() {\n    return this;\n  }\n\n  var mixin = {\n    /**\n     A list of properties of the view to apply as attributes. If the property\n     is a string value, the value of that string will be applied as the value\n     for an attribute of the property's name.\n      The following example creates a tag like `<div priority=\"high\" />`.\n      ```app/components/my-component.js\n     import Component from '@ember/component';\n      export default Component.extend({\n        attributeBindings: ['priority'],\n        priority: 'high'\n      });\n     ```\n      If the value of the property is a Boolean, the attribute is treated as\n     an HTML Boolean attribute. It will be present if the property is `true`\n     and omitted if the property is `false`.\n      The following example creates markup like `<div visible />`.\n      ```app/components/my-component.js\n     import Component from '@ember/component';\n      export default Component.extend({\n        attributeBindings: ['visible'],\n        visible: true\n      });\n     ```\n      If you would prefer to use a custom value instead of the property name,\n     you can create the same markup as the last example with a binding like\n     this:\n      ```app/components/my-component.js\n     import Component from '@ember/component';\n      export default Component.extend({\n        attributeBindings: ['isVisible:visible'],\n        isVisible: true\n      });\n     ```\n      This list of attributes is inherited from the component's superclasses,\n     as well.\n      @property attributeBindings\n     @type Array\n     @default []\n     @public\n     */\n    concatenatedProperties: ['attributeBindings'],\n\n    // ..........................................................\n    // TEMPLATE SUPPORT\n    //\n\n    /**\n     Return the nearest ancestor that is an instance of the provided\n     class or mixin.\n      @method nearestOfType\n     @param {Class,Mixin} klass Subclass of Ember.View (or Ember.View itself),\n     or an instance of Mixin.\n     @return Ember.View\n     @deprecated use `yield` and contextual components for composition instead.\n     @private\n     */\n    nearestOfType(klass) {\n      var view = this.parentView;\n      var isOfType = klass instanceof _metal.Mixin ? view => klass.detect(view) : view => klass.detect(view.constructor);\n\n      while (view) {\n        if (isOfType(view)) {\n          return view;\n        }\n\n        view = view.parentView;\n      }\n    },\n\n    /**\n     Return the nearest ancestor that has a given property.\n      @method nearestWithProperty\n     @param {String} property A property name\n     @return Ember.View\n     @deprecated use `yield` and contextual components for composition instead.\n     @private\n     */\n    nearestWithProperty(property) {\n      var view = this.parentView;\n\n      while (view) {\n        if (property in view) {\n          return view;\n        }\n\n        view = view.parentView;\n      }\n    },\n\n    /**\n     Renders the view again. This will work regardless of whether the\n     view is already in the DOM or not. If the view is in the DOM, the\n     rendering process will be deferred to give bindings a chance\n     to synchronize.\n      If children were added during the rendering process using `appendChild`,\n     `rerender` will remove them, because they will be added again\n     if needed by the next `render`.\n      In general, if the display of your view changes, you should modify\n     the DOM element directly instead of manually calling `rerender`, which can\n     be slow.\n      @method rerender\n     @public\n     */\n    rerender() {\n      return this._currentState.rerender(this);\n    },\n\n    // ..........................................................\n    // ELEMENT SUPPORT\n    //\n\n    /**\n     Returns the current DOM element for the view.\n       @property element\n      @type DOMElement\n      @public\n    */\n    element: (0, _metal.nativeDescDecorator)({\n      configurable: false,\n      enumerable: false,\n\n      get() {\n        return this.renderer.getElement(this);\n      }\n\n    }),\n\n    /**\n     Appends the view's element to the specified parent element.\n      Note that this method just schedules the view to be appended; the DOM\n     element will not be appended to the given element until all bindings have\n     finished synchronizing.\n      This is not typically a function that you will need to call directly when\n     building your application. If you do need to use `appendTo`, be sure that\n     the target element you are providing is associated with an `Application`\n     and does not have an ancestor element that is associated with an Ember view.\n      @method appendTo\n     @param {String|DOMElement|jQuery} A selector, element, HTML string, or jQuery object\n     @return {Ember.View} receiver\n     @private\n     */\n    appendTo(selector) {\n      var target;\n\n      if (_browserEnvironment.hasDOM) {\n        target = typeof selector === 'string' ? document.querySelector(selector) : selector;\n        (true && !(target) && (0, _debug.assert)(`You tried to append to (${selector}) but that isn't in the DOM`, target));\n        (true && !(!(0, _utils2.matches)(target, '.ember-view')) && (0, _debug.assert)('You cannot append to an existing Ember.View.', !(0, _utils2.matches)(target, '.ember-view')));\n        (true && !((() => {\n          var node = target.parentNode;\n\n          while (node) {\n            if (node.nodeType !== 9 && (0, _utils2.matches)(node, '.ember-view')) {\n              return false;\n            }\n\n            node = node.parentNode;\n          }\n\n          return true;\n        })()) && (0, _debug.assert)('You cannot append to an existing Ember.View.', (() => {\n          var node = target.parentNode;\n\n          while (node) {\n            if (node.nodeType !== 9 && (0, _utils2.matches)(node, '.ember-view')) {\n              return false;\n            }\n\n            node = node.parentNode;\n          }\n\n          return true;\n        })()));\n      } else {\n        target = selector;\n        (true && !(typeof target !== 'string') && (0, _debug.assert)(`You tried to append to a selector string (${selector}) in an environment without jQuery`, typeof target !== 'string'));\n        (true && !(typeof selector.appendChild === 'function') && (0, _debug.assert)(`You tried to append to a non-Element (${selector}) in an environment without jQuery`, typeof selector.appendChild === 'function'));\n      }\n\n      this.renderer.appendTo(this, target);\n      return this;\n    },\n\n    /**\n     Appends the view's element to the document body. If the view does\n     not have an HTML representation yet\n     the element will be generated automatically.\n      If your application uses the `rootElement` property, you must append\n     the view within that element. Rendering views outside of the `rootElement`\n     is not supported.\n      Note that this method just schedules the view to be appended; the DOM\n     element will not be appended to the document body until all bindings have\n     finished synchronizing.\n      @method append\n     @return {Ember.View} receiver\n     @private\n     */\n    append() {\n      return this.appendTo(document.body);\n    },\n\n    /**\n     The HTML `id` of the view's element in the DOM. You can provide this\n     value yourself but it must be unique (just as in HTML):\n      ```handlebars\n     {{my-component elementId=\"a-really-cool-id\"}}\n     ```\n      If not manually set a default value will be provided by the framework.\n      Once rendered an element's `elementId` is considered immutable and you\n     should never change it. If you need to compute a dynamic value for the\n     `elementId`, you should do this when the component or element is being\n     instantiated:\n      ```app/components/my-component.js\n     import Component from '@ember/component';\n      export default Component.extend({\n        init() {\n          this._super(...arguments);\n          let index = this.get('index');\n          this.set('elementId', 'component-id' + index);\n        }\n      });\n     ```\n      @property elementId\n     @type String\n     @public\n     */\n    elementId: null,\n\n    /**\n     Called when a view is going to insert an element into the DOM.\n      @event willInsertElement\n     @public\n     */\n    willInsertElement: K,\n\n    /**\n     Called when the element of the view has been inserted into the DOM.\n     Override this function to do any set up that requires an element\n     in the document body.\n      When a view has children, didInsertElement will be called on the\n     child view(s) first and on itself afterwards.\n      @event didInsertElement\n     @public\n     */\n    didInsertElement: K,\n\n    /**\n     Called when the view is about to rerender, but before anything has\n     been torn down. This is a good opportunity to tear down any manual\n     observers you have installed based on the DOM state\n      @event willClearRender\n     @public\n     */\n    willClearRender: K,\n\n    /**\n     You must call `destroy` on a view to destroy the view (and all of its\n     child views). This will remove the view from any parent node, then make\n     sure that the DOM element managed by the view can be released by the\n     memory manager.\n      @method destroy\n     @private\n     */\n    destroy() {\n      this._super(...arguments);\n\n      this._currentState.destroy(this);\n    },\n\n    /**\n     Called when the element of the view is going to be destroyed. Override\n     this function to do any teardown that requires an element, like removing\n     event listeners.\n      Please note: any property changes made during this event will have no\n     effect on object observers.\n      @event willDestroyElement\n     @public\n     */\n    willDestroyElement: K,\n\n    /**\n     Called after the element of the view is destroyed.\n      @event willDestroyElement\n     @public\n     */\n    didDestroyElement: K,\n\n    /**\n     Called when the parentView property has changed.\n      @event parentViewDidChange\n     @private\n     */\n    parentViewDidChange: K,\n    // ..........................................................\n    // STANDARD RENDER PROPERTIES\n    //\n\n    /**\n     Tag name for the view's outer element. The tag name is only used when an\n     element is first created. If you change the `tagName` for an element, you\n     must destroy and recreate the view element.\n      By default, the render buffer will use a `<div>` tag for views.\n      If the tagName is `''`, the view will be tagless, with no outer element.\n     Component properties that depend on the presence of an outer element, such\n     as `classNameBindings` and `attributeBindings`, do not work with tagless\n     components. Tagless components cannot implement methods to handle events,\n     and have no associated jQuery object to return with `$()`.\n      @property tagName\n     @type String\n     @default null\n     @public\n     */\n    // We leave this null by default so we can tell the difference between\n    // the default case and a user-specified tag.\n    tagName: null,\n\n    // .......................................................\n    // CORE DISPLAY METHODS\n    //\n\n    /**\n     Setup a view, but do not finish waking it up.\n      * configure `childViews`\n     * register the view with the global views hash, which is used for event\n     dispatch\n      @method init\n     @private\n     */\n    init() {\n      this._super(...arguments); // tslint:disable-next-line:max-line-length\n\n\n      (true && !((0, _metal.descriptorForProperty)(this, 'elementId') === undefined) && (0, _debug.assert)(`You cannot use a computed property for the component's \\`elementId\\` (${this}).`, (0, _metal.descriptorForProperty)(this, 'elementId') === undefined)); // tslint:disable-next-line:max-line-length\n\n      (true && !((0, _metal.descriptorForProperty)(this, 'tagName') === undefined) && (0, _debug.assert)(`You cannot use a computed property for the component's \\`tagName\\` (${this}).`, (0, _metal.descriptorForProperty)(this, 'tagName') === undefined));\n\n      if (!this.elementId && this.tagName !== '') {\n        this.elementId = (0, _utils.guidFor)(this);\n      }\n\n      (true && !(!this.render) && (0, _debug.assert)('Using a custom `.render` function is no longer supported.', !this.render));\n    },\n\n    // .......................................................\n    // EVENT HANDLING\n    //\n\n    /**\n     Handle events from `EventDispatcher`\n      @method handleEvent\n     @param eventName {String}\n     @param evt {Event}\n     @private\n     */\n    handleEvent(eventName, evt) {\n      return this._currentState.handleEvent(this, eventName, evt);\n    }\n\n  };\n\n  if (_deprecatedFeatures.JQUERY_INTEGRATION) {\n    /**\n     Returns a jQuery object for this view's element. If you pass in a selector\n     string, this method will return a jQuery object, using the current element\n     as its buffer.\n      For example, calling `view.$('li')` will return a jQuery object containing\n     all of the `li` elements inside the DOM element of this view.\n      @method $\n     @param {String} [selector] a jQuery-compatible selector string\n     @return {jQuery} the jQuery object for the DOM node\n     @public\n     @deprecated\n     */\n    mixin.$ = function $(sel) {\n      (true && !(this.tagName !== '') && (0, _debug.assert)(\"You cannot access this.$() on a component with `tagName: ''` specified.\", this.tagName !== ''));\n      (true && !(!_jquery.jQueryDisabled) && (0, _debug.assert)('You cannot access this.$() with `jQuery` disabled.', !_jquery.jQueryDisabled));\n      (true && !(false) && (0, _debug.deprecate)('Using this.$() in a component has been deprecated, consider using this.element', false, {\n        id: 'ember-views.curly-components.jquery-element',\n        until: '4.0.0',\n        url: 'https://emberjs.com/deprecations/v3.x#toc_jquery-apis'\n      }));\n\n      if (this.element) {\n        return sel ? (0, _jquery.jQuery)(sel, this.element) : (0, _jquery.jQuery)(this.element);\n      }\n    };\n  }\n  /**\n   @class ViewMixin\n   @namespace Ember\n   @private\n  */\n\n\n  var _default = _metal.Mixin.create(mixin);\n\n  _exports.default = _default;\n});","define(\"@ember/-internals/views/lib/system/action_manager\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = ActionManager;\n\n  /**\n  @module ember\n  */\n  function ActionManager() {}\n  /**\n    Global action id hash.\n  \n    @private\n    @property registeredActions\n    @type Object\n  */\n\n\n  ActionManager.registeredActions = {};\n});","define(\"@ember/-internals/views/lib/system/event_dispatcher\", [\"exports\", \"@ember/-internals/owner\", \"@ember/polyfills\", \"@ember/debug\", \"@ember/-internals/metal\", \"@ember/-internals/runtime\", \"@ember/-internals/views\", \"@ember/-internals/views/lib/system/jquery\", \"@ember/-internals/views/lib/system/action_manager\", \"@ember/-internals/views/lib/system/jquery_event_deprecation\", \"@ember/-internals/views/lib/system/utils\", \"@ember/deprecated-features\"], function (_exports, _owner, _polyfills, _debug, _metal, _runtime, _views, _jquery, _action_manager, _jquery_event_deprecation, _utils, _deprecatedFeatures) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n  @module ember\n  */\n  var ROOT_ELEMENT_CLASS = 'ember-application';\n  var ROOT_ELEMENT_SELECTOR = `.${ROOT_ELEMENT_CLASS}`;\n  var EVENT_MAP = {\n    mouseenter: 'mouseover',\n    mouseleave: 'mouseout'\n  };\n  /**\n    `Ember.EventDispatcher` handles delegating browser events to their\n    corresponding `Ember.Views.` For example, when you click on a view,\n    `Ember.EventDispatcher` ensures that that view's `mouseDown` method gets\n    called.\n  \n    @class EventDispatcher\n    @namespace Ember\n    @private\n    @extends Ember.Object\n  */\n\n  var _default = _runtime.Object.extend({\n    /**\n      The set of events names (and associated handler function names) to be setup\n      and dispatched by the `EventDispatcher`. Modifications to this list can be done\n      at setup time, generally via the `Application.customEvents` hash.\n       To add new events to be listened to:\n       ```javascript\n      import Application from '@ember/application';\n       let App = Application.create({\n        customEvents: {\n          paste: 'paste'\n        }\n      });\n      ```\n       To prevent default events from being listened to:\n       ```javascript\n      import Application from '@ember/application';\n       let App = Application.create({\n        customEvents: {\n          mouseenter: null,\n          mouseleave: null\n        }\n      });\n      ```\n      @property events\n      @type Object\n      @private\n    */\n    events: (0, _polyfills.assign)({\n      touchstart: 'touchStart',\n      touchmove: 'touchMove',\n      touchend: 'touchEnd',\n      touchcancel: 'touchCancel',\n      keydown: 'keyDown',\n      keyup: 'keyUp',\n      keypress: 'keyPress',\n      mousedown: 'mouseDown',\n      mouseup: 'mouseUp',\n      contextmenu: 'contextMenu',\n      click: 'click',\n      dblclick: 'doubleClick',\n      focusin: 'focusIn',\n      focusout: 'focusOut',\n      submit: 'submit',\n      input: 'input',\n      change: 'change',\n      dragstart: 'dragStart',\n      drag: 'drag',\n      dragenter: 'dragEnter',\n      dragleave: 'dragLeave',\n      dragover: 'dragOver',\n      drop: 'drop',\n      dragend: 'dragEnd'\n    }, _deprecatedFeatures.MOUSE_ENTER_LEAVE_MOVE_EVENTS ? {\n      mouseenter: 'mouseEnter',\n      mouseleave: 'mouseLeave',\n      mousemove: 'mouseMove'\n    } : {}),\n\n    /**\n      The root DOM element to which event listeners should be attached. Event\n      listeners will be attached to the document unless this is overridden.\n       Can be specified as a DOMElement or a selector string.\n       The default body is a string since this may be evaluated before document.body\n      exists in the DOM.\n       @private\n      @property rootElement\n      @type DOMElement\n      @default 'body'\n    */\n    rootElement: 'body',\n\n    init() {\n      this._super();\n\n      (true && !((() => {\n        var owner = (0, _owner.getOwner)(this);\n        var environment = owner.lookup('-environment:main');\n        return environment.isInteractive;\n      })()) && (0, _debug.assert)('EventDispatcher should never be instantiated in fastboot mode. Please report this as an Ember bug.', (() => {\n        var owner = (0, _owner.getOwner)(this);\n        var environment = owner.lookup('-environment:main');\n        return environment.isInteractive;\n      })()));\n      this._eventHandlers = Object.create(null);\n    },\n\n    /**\n      Sets up event listeners for standard browser events.\n       This will be called after the browser sends a `DOMContentReady` event. By\n      default, it will set up all of the listeners on the document body. If you\n      would like to register the listeners on a different element, set the event\n      dispatcher's `root` property.\n       @private\n      @method setup\n      @param addedEvents {Object}\n    */\n    setup(addedEvents, _rootElement) {\n      var events = this._finalEvents = (0, _polyfills.assign)({}, (0, _metal.get)(this, 'events'), addedEvents);\n\n      if (_rootElement !== undefined && _rootElement !== null) {\n        (0, _metal.set)(this, 'rootElement', _rootElement);\n      }\n\n      var rootElementSelector = (0, _metal.get)(this, 'rootElement');\n      var rootElement;\n\n      if (!_deprecatedFeatures.JQUERY_INTEGRATION || _jquery.jQueryDisabled) {\n        if (typeof rootElementSelector !== 'string') {\n          rootElement = rootElementSelector;\n        } else {\n          rootElement = document.querySelector(rootElementSelector);\n        }\n\n        (true && !(!rootElement.classList.contains(ROOT_ELEMENT_CLASS)) && (0, _debug.assert)(`You cannot use the same root element (${(0, _metal.get)(this, 'rootElement') || rootElement.tagName}) multiple times in an Ember.Application`, !rootElement.classList.contains(ROOT_ELEMENT_CLASS)));\n        (true && !((() => {\n          var target = rootElement.parentNode;\n\n          do {\n            if (target.classList.contains(ROOT_ELEMENT_CLASS)) {\n              return false;\n            }\n\n            target = target.parentNode;\n          } while (target && target.nodeType === 1);\n\n          return true;\n        })()) && (0, _debug.assert)('You cannot make a new Ember.Application using a root element that is a descendent of an existing Ember.Application', (() => {\n          var target = rootElement.parentNode;\n\n          do {\n            if (target.classList.contains(ROOT_ELEMENT_CLASS)) {\n              return false;\n            }\n\n            target = target.parentNode;\n          } while (target && target.nodeType === 1);\n\n          return true;\n        })()));\n        (true && !(!rootElement.querySelector(ROOT_ELEMENT_SELECTOR)) && (0, _debug.assert)('You cannot make a new Ember.Application using a root element that is an ancestor of an existing Ember.Application', !rootElement.querySelector(ROOT_ELEMENT_SELECTOR)));\n        rootElement.classList.add(ROOT_ELEMENT_CLASS);\n        (true && !(rootElement.classList.contains(ROOT_ELEMENT_CLASS)) && (0, _debug.assert)(`Unable to add '${ROOT_ELEMENT_CLASS}' class to root element (${(0, _metal.get)(this, 'rootElement') || rootElement.tagName}). Make sure you set rootElement to the body or an element in the body.`, rootElement.classList.contains(ROOT_ELEMENT_CLASS)));\n      } else {\n        rootElement = (0, _jquery.jQuery)(rootElementSelector);\n        (true && !(!rootElement.is(ROOT_ELEMENT_SELECTOR)) && (0, _debug.assert)(`You cannot use the same root element (${rootElement.selector || rootElement[0].tagName}) multiple times in an Ember.Application`, !rootElement.is(ROOT_ELEMENT_SELECTOR)));\n        (true && !(!rootElement.closest(ROOT_ELEMENT_SELECTOR).length) && (0, _debug.assert)('You cannot make a new Ember.Application using a root element that is a descendent of an existing Ember.Application', !rootElement.closest(ROOT_ELEMENT_SELECTOR).length));\n        (true && !(!rootElement.find(ROOT_ELEMENT_SELECTOR).length) && (0, _debug.assert)('You cannot make a new Ember.Application using a root element that is an ancestor of an existing Ember.Application', !rootElement.find(ROOT_ELEMENT_SELECTOR).length));\n        rootElement.addClass(ROOT_ELEMENT_CLASS);\n\n        if (!rootElement.is(ROOT_ELEMENT_SELECTOR)) {\n          throw new TypeError(`Unable to add '${ROOT_ELEMENT_CLASS}' class to root element (${rootElement.selector || rootElement[0].tagName}). Make sure you set rootElement to the body or an element in the body.`);\n        }\n      }\n\n      for (var event in events) {\n        if (events.hasOwnProperty(event)) {\n          this.setupHandler(rootElement, event, events[event]);\n        }\n      }\n    },\n\n    /**\n      Registers an event listener on the rootElement. If the given event is\n      triggered, the provided event handler will be triggered on the target view.\n       If the target view does not implement the event handler, or if the handler\n      returns `false`, the parent view will be called. The event will continue to\n      bubble to each successive parent view until it reaches the top.\n       @private\n      @method setupHandler\n      @param {Element} rootElement\n      @param {String} event the browser-originated event to listen to\n      @param {String} eventName the name of the method to call on the view\n    */\n    setupHandler(rootElement, event, eventName) {\n      if (eventName === null) {\n        return;\n      }\n\n      if (!_deprecatedFeatures.JQUERY_INTEGRATION || _jquery.jQueryDisabled) {\n        var viewHandler = (target, event) => {\n          var view = (0, _views.getElementView)(target);\n          var result = true;\n\n          if (view) {\n            result = view.handleEvent(eventName, event);\n          }\n\n          return result;\n        };\n\n        var actionHandler = (target, event) => {\n          var actionId = target.getAttribute('data-ember-action');\n          var actions = _action_manager.default.registeredActions[actionId]; // In Glimmer2 this attribute is set to an empty string and an additional\n          // attribute it set for each action on a given element. In this case, the\n          // attributes need to be read so that a proper set of action handlers can\n          // be coalesced.\n\n          if (actionId === '') {\n            var attributes = target.attributes;\n            var attributeCount = attributes.length;\n            actions = [];\n\n            for (var i = 0; i < attributeCount; i++) {\n              var attr = attributes.item(i);\n              var attrName = attr.name;\n\n              if (attrName.indexOf('data-ember-action-') === 0) {\n                actions = actions.concat(_action_manager.default.registeredActions[attr.value]);\n              }\n            }\n          } // We have to check for actions here since in some cases, jQuery will trigger\n          // an event on `removeChild` (i.e. focusout) after we've already torn down the\n          // action handlers for the view.\n\n\n          if (!actions) {\n            return;\n          }\n\n          var result = true;\n\n          for (var index = 0; index < actions.length; index++) {\n            var action = actions[index];\n\n            if (action && action.eventName === eventName) {\n              // return false if any of the action handlers returns false\n              result = action.handler(event) && result;\n            }\n          }\n\n          return result;\n        }; // Special handling of events that don't bubble (event delegation does not work).\n        // Mimics the way this is handled in jQuery,\n        // see https://github.com/jquery/jquery/blob/899c56f6ada26821e8af12d9f35fa039100e838e/src/event.js#L666-L700\n\n\n        if (_deprecatedFeatures.MOUSE_ENTER_LEAVE_MOVE_EVENTS && EVENT_MAP[event] !== undefined) {\n          var mappedEventType = EVENT_MAP[event];\n          var origEventType = event;\n\n          var createFakeEvent = (eventType, event) => {\n            var fakeEvent = document.createEvent('MouseEvent');\n            fakeEvent.initMouseEvent(eventType, false, false, event.view, event.detail, event.screenX, event.screenY, event.clientX, event.clientY, event.ctrlKey, event.altKey, event.shiftKey, event.metaKey, event.button, event.relatedTarget); // fake event.target as we don't dispatch the event\n\n            Object.defineProperty(fakeEvent, 'target', {\n              value: event.target,\n              enumerable: true\n            });\n            return fakeEvent;\n          };\n\n          var handleMappedEvent = this._eventHandlers[mappedEventType] = event => {\n            var target = event.target;\n            var related = event.relatedTarget;\n\n            while (target && target.nodeType === 1 && (related === null || related !== target && !(0, _utils.contains)(target, related))) {\n              // mouseEnter/Leave don't bubble, so there is no logic to prevent it as with other events\n              if ((0, _views.getElementView)(target)) {\n                viewHandler(target, createFakeEvent(origEventType, event));\n              } else if (target.hasAttribute('data-ember-action')) {\n                actionHandler(target, createFakeEvent(origEventType, event));\n              } // separate mouseEnter/Leave events are dispatched for each listening element\n              // until the element (related) has been reached that the pointing device exited from/to\n\n\n              target = target.parentNode;\n            }\n          };\n\n          rootElement.addEventListener(mappedEventType, handleMappedEvent);\n        } else {\n          var handleEvent = this._eventHandlers[event] = event => {\n            var target = event.target;\n\n            do {\n              if ((0, _views.getElementView)(target)) {\n                if (viewHandler(target, event) === false) {\n                  event.preventDefault();\n                  event.stopPropagation();\n                  break;\n                } else if (event.cancelBubble === true) {\n                  break;\n                }\n              } else if (typeof target.hasAttribute === 'function' && target.hasAttribute('data-ember-action')) {\n                if (actionHandler(target, event) === false) {\n                  break;\n                }\n              }\n\n              target = target.parentNode;\n            } while (target && target.nodeType === 1);\n          };\n\n          rootElement.addEventListener(event, handleEvent);\n        }\n      } else {\n        rootElement.on(`${event}.ember`, '.ember-view', function (evt) {\n          var view = (0, _views.getElementView)(this);\n          var result = true;\n\n          if (view) {\n            result = view.handleEvent(eventName, (0, _jquery_event_deprecation.default)(evt));\n          }\n\n          return result;\n        });\n        rootElement.on(`${event}.ember`, '[data-ember-action]', evt => {\n          var attributes = evt.currentTarget.attributes;\n          var handledActions = [];\n          evt = (0, _jquery_event_deprecation.default)(evt);\n\n          for (var i = 0; i < attributes.length; i++) {\n            var attr = attributes.item(i);\n            var attrName = attr.name;\n\n            if (attrName.lastIndexOf('data-ember-action-', 0) !== -1) {\n              var action = _action_manager.default.registeredActions[attr.value]; // We have to check for action here since in some cases, jQuery will trigger\n              // an event on `removeChild` (i.e. focusout) after we've already torn down the\n              // action handlers for the view.\n\n              if (action && action.eventName === eventName && handledActions.indexOf(action) === -1) {\n                action.handler(evt); // Action handlers can mutate state which in turn creates new attributes on the element.\n                // This effect could cause the `data-ember-action` attribute to shift down and be invoked twice.\n                // To avoid this, we keep track of which actions have been handled.\n\n                handledActions.push(action);\n              }\n            }\n          }\n        });\n      }\n    },\n\n    destroy() {\n      var rootElementSelector = (0, _metal.get)(this, 'rootElement');\n      var rootElement;\n\n      if (rootElementSelector.nodeType) {\n        rootElement = rootElementSelector;\n      } else {\n        rootElement = document.querySelector(rootElementSelector);\n      }\n\n      if (!rootElement) {\n        return;\n      }\n\n      if (!_deprecatedFeatures.JQUERY_INTEGRATION || _jquery.jQueryDisabled) {\n        for (var event in this._eventHandlers) {\n          rootElement.removeEventListener(event, this._eventHandlers[event]);\n        }\n      } else {\n        (0, _jquery.jQuery)(rootElementSelector).off('.ember', '**');\n      }\n\n      rootElement.classList.remove(ROOT_ELEMENT_CLASS);\n      return this._super(...arguments);\n    },\n\n    toString() {\n      return '(EventDispatcher)';\n    }\n\n  });\n\n  _exports.default = _default;\n});","define(\"@ember/-internals/views/lib/system/jquery\", [\"exports\", \"@ember/-internals/environment\", \"@ember/-internals/browser-environment\", \"@ember/deprecated-features\"], function (_exports, _environment, _browserEnvironment, _deprecatedFeatures) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.jQueryDisabled = _exports.jQuery = void 0;\n  var jQuery;\n  _exports.jQuery = jQuery;\n  var jQueryDisabled = !_deprecatedFeatures.JQUERY_INTEGRATION || _environment.ENV._JQUERY_INTEGRATION === false;\n  _exports.jQueryDisabled = jQueryDisabled;\n\n  if (_deprecatedFeatures.JQUERY_INTEGRATION && _browserEnvironment.hasDOM) {\n    _exports.jQuery = jQuery = _environment.context.imports.jQuery;\n\n    if (!jQueryDisabled && jQuery) {\n      if (jQuery.event.addProp) {\n        jQuery.event.addProp('dataTransfer');\n      } else {\n        // http://www.whatwg.org/specs/web-apps/current-work/multipage/dnd.html#dndevents\n        ['dragstart', 'drag', 'dragenter', 'dragleave', 'dragover', 'drop', 'dragend'].forEach(eventName => {\n          jQuery.event.fixHooks[eventName] = {\n            props: ['dataTransfer']\n          };\n        });\n      }\n    } else {\n      _exports.jQuery = jQuery = undefined;\n      _exports.jQueryDisabled = jQueryDisabled = true;\n    }\n  }\n});","define(\"@ember/-internals/views/lib/system/jquery_event_deprecation\", [\"exports\", \"@ember/debug\", \"@ember/-internals/environment\", \"@ember/-internals/utils\", \"@ember/deprecated-features\"], function (_exports, _debug, _environment, _utils, _deprecatedFeatures) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = addJQueryEventDeprecation;\n\n  /* global Proxy */\n  function addJQueryEventDeprecation(jqEvent) {\n    if (true\n    /* DEBUG */\n    && _deprecatedFeatures.JQUERY_INTEGRATION && _utils.HAS_NATIVE_PROXY) {\n      var boundFunctions = new Map(); // wrap the jQuery event in a Proxy to add the deprecation message for originalEvent, according to RFC#294\n      // we need a native Proxy here, so we can make sure that the internal use of originalEvent in jQuery itself does\n      // not trigger a deprecation\n\n      return new Proxy(jqEvent, {\n        get(target, name) {\n          switch (name) {\n            case 'originalEvent':\n              (true && !((EmberENV => {\n                // this deprecation is intentionally checking `global.EmberENV` /\n                // `global.ENV` so that we can ensure we _only_ deprecate in the\n                // case where jQuery integration is enabled implicitly (e.g.\n                // \"defaulted\" to enabled) as opposed to when the user explicitly\n                // opts in to using jQuery\n                if (typeof EmberENV !== 'object' || EmberENV === null) return false;\n                return EmberENV._JQUERY_INTEGRATION === true;\n              })(_environment.global.EmberENV || _environment.global.ENV)) && (0, _debug.deprecate)('Accessing jQuery.Event specific properties is deprecated. Either use the ember-jquery-legacy addon to normalize events to native events, or explicitly opt into jQuery integration using @ember/optional-features.', (EmberENV => {\n                if (typeof EmberENV !== 'object' || EmberENV === null) return false;\n                return EmberENV._JQUERY_INTEGRATION === true;\n              })(_environment.global.EmberENV || _environment.global.ENV), {\n                id: 'ember-views.event-dispatcher.jquery-event',\n                until: '4.0.0',\n                url: 'https://emberjs.com/deprecations/v3.x#toc_jquery-event'\n              }));\n              return target[name];\n            // provide an escape hatch for ember-jquery-legacy to access originalEvent without a deprecation\n\n            case '__originalEvent':\n              return target.originalEvent;\n\n            default:\n              if (typeof target[name] === 'function') {\n                // cache functions for reuse\n                if (!boundFunctions.has(name)) {\n                  // for jQuery.Event methods call them with `target` as the `this` context, so they will access\n                  // `originalEvent` from the original jQuery event, not our proxy, thus not trigger the deprecation\n                  boundFunctions.set(name, target[name].bind(target));\n                }\n\n                return boundFunctions.get(name);\n              } // same for jQuery's getter functions for simple properties\n\n\n              return target[name];\n          }\n        }\n\n      });\n    }\n\n    return jqEvent;\n  }\n});","define(\"@ember/-internals/views/lib/system/utils\", [\"exports\", \"@ember/-internals/owner\", \"@ember/-internals/utils\", \"@ember/debug\"], function (_exports, _owner, _utils, _debug) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.isSimpleClick = isSimpleClick;\n  _exports.constructStyleDeprecationMessage = constructStyleDeprecationMessage;\n  _exports.getRootViews = getRootViews;\n  _exports.getViewId = getViewId;\n  _exports.getElementView = getElementView;\n  _exports.getViewElement = getViewElement;\n  _exports.setElementView = setElementView;\n  _exports.setViewElement = setViewElement;\n  _exports.clearElementView = clearElementView;\n  _exports.clearViewElement = clearViewElement;\n  _exports.getChildViews = getChildViews;\n  _exports.initChildViews = initChildViews;\n  _exports.addChildView = addChildView;\n  _exports.collectChildViews = collectChildViews;\n  _exports.getViewBounds = getViewBounds;\n  _exports.getViewRange = getViewRange;\n  _exports.getViewClientRects = getViewClientRects;\n  _exports.getViewBoundingClientRect = getViewBoundingClientRect;\n  _exports.matches = matches;\n  _exports.contains = contains;\n  _exports.elMatches = void 0;\n\n  /* globals Element */\n\n  /**\n  @module ember\n  */\n  function isSimpleClick(event) {\n    var modifier = event.shiftKey || event.metaKey || event.altKey || event.ctrlKey;\n    var secondaryClick = event.which > 1; // IE9 may return undefined\n\n    return !modifier && !secondaryClick;\n  }\n\n  function constructStyleDeprecationMessage(affectedStyle) {\n    return '' + 'Binding style attributes may introduce cross-site scripting vulnerabilities; ' + 'please ensure that values being bound are properly escaped. For more information, ' + 'including how to disable this warning, see ' + 'https://emberjs.com/deprecations/v1.x/#toc_binding-style-attributes. ' + 'Style affected: \"' + affectedStyle + '\"';\n  }\n  /**\n    @private\n    @method getRootViews\n    @param {Object} owner\n  */\n\n\n  function getRootViews(owner) {\n    var registry = owner.lookup('-view-registry:main');\n    var rootViews = [];\n    Object.keys(registry).forEach(id => {\n      var view = registry[id];\n\n      if (view.parentView === null) {\n        rootViews.push(view);\n      }\n    });\n    return rootViews;\n  }\n  /**\n    @private\n    @method getViewId\n    @param {Ember.View} view\n   */\n\n\n  function getViewId(view) {\n    if (view.tagName !== '' && view.elementId) {\n      return view.elementId;\n    } else {\n      return (0, _utils.guidFor)(view);\n    }\n  }\n\n  var ELEMENT_VIEW = new WeakMap();\n  var VIEW_ELEMENT = new WeakMap();\n\n  function getElementView(element) {\n    return ELEMENT_VIEW.get(element) || null;\n  }\n  /**\n    @private\n    @method getViewElement\n    @param {Ember.View} view\n   */\n\n\n  function getViewElement(view) {\n    return VIEW_ELEMENT.get(view) || null;\n  }\n\n  function setElementView(element, view) {\n    ELEMENT_VIEW.set(element, view);\n  }\n\n  function setViewElement(view, element) {\n    VIEW_ELEMENT.set(view, element);\n  } // These are not needed for GC, but for correctness. We want to be able to\n  // null-out these links while the objects are still live. Specifically, in\n  // this case, we want to prevent access to the element (and vice verse) during\n  // destruction.\n\n\n  function clearElementView(element) {\n    ELEMENT_VIEW.delete(element);\n  }\n\n  function clearViewElement(view) {\n    VIEW_ELEMENT.delete(view);\n  }\n\n  var CHILD_VIEW_IDS = new WeakMap();\n  /**\n    @private\n    @method getChildViews\n    @param {Ember.View} view\n  */\n\n  function getChildViews(view) {\n    var owner = (0, _owner.getOwner)(view);\n    var registry = owner.lookup('-view-registry:main');\n    return collectChildViews(view, registry);\n  }\n\n  function initChildViews(view) {\n    var childViews = new Set();\n    CHILD_VIEW_IDS.set(view, childViews);\n    return childViews;\n  }\n\n  function addChildView(parent, child) {\n    var childViews = CHILD_VIEW_IDS.get(parent);\n\n    if (childViews === undefined) {\n      childViews = initChildViews(parent);\n    }\n\n    childViews.add(getViewId(child));\n  }\n\n  function collectChildViews(view, registry) {\n    var views = [];\n    var childViews = CHILD_VIEW_IDS.get(view);\n\n    if (childViews !== undefined) {\n      childViews.forEach(id => {\n        var view = registry[id];\n\n        if (view && !view.isDestroying && !view.isDestroyed) {\n          views.push(view);\n        }\n      });\n    }\n\n    return views;\n  }\n  /**\n    @private\n    @method getViewBounds\n    @param {Ember.View} view\n  */\n\n\n  function getViewBounds(view) {\n    return view.renderer.getBounds(view);\n  }\n  /**\n    @private\n    @method getViewRange\n    @param {Ember.View} view\n  */\n\n\n  function getViewRange(view) {\n    var bounds = getViewBounds(view);\n    var range = document.createRange();\n    range.setStartBefore(bounds.firstNode);\n    range.setEndAfter(bounds.lastNode);\n    return range;\n  }\n  /**\n    `getViewClientRects` provides information about the position of the border\n    box edges of a view relative to the viewport.\n  \n    It is only intended to be used by development tools like the Ember Inspector\n    and may not work on older browsers.\n  \n    @private\n    @method getViewClientRects\n    @param {Ember.View} view\n  */\n\n\n  function getViewClientRects(view) {\n    var range = getViewRange(view);\n    return range.getClientRects();\n  }\n  /**\n    `getViewBoundingClientRect` provides information about the position of the\n    bounding border box edges of a view relative to the viewport.\n  \n    It is only intended to be used by development tools like the Ember Inspector\n    and may not work on older browsers.\n  \n    @private\n    @method getViewBoundingClientRect\n    @param {Ember.View} view\n  */\n\n\n  function getViewBoundingClientRect(view) {\n    var range = getViewRange(view);\n    return range.getBoundingClientRect();\n  }\n  /**\n    Determines if the element matches the specified selector.\n  \n    @private\n    @method matches\n    @param {DOMElement} el\n    @param {String} selector\n  */\n\n\n  var elMatches = typeof Element !== 'undefined' ? Element.prototype.matches || Element.prototype['matchesSelector'] || Element.prototype['mozMatchesSelector'] || Element.prototype['msMatchesSelector'] || Element.prototype['oMatchesSelector'] || Element.prototype['webkitMatchesSelector'] : undefined;\n  _exports.elMatches = elMatches;\n\n  function matches(el, selector) {\n    (true && !(elMatches !== undefined) && (0, _debug.assert)('cannot call `matches` in fastboot mode', elMatches !== undefined));\n    return elMatches.call(el, selector);\n  }\n\n  function contains(a, b) {\n    if (a.contains !== undefined) {\n      return a.contains(b);\n    }\n\n    var current = b.parentNode;\n\n    while (current && (current = current.parentNode)) {\n      if (current === a) {\n        return true;\n      }\n    }\n\n    return false;\n  }\n});","define(\"@ember/-internals/views/lib/views/core_view\", [\"exports\", \"@ember/-internals/runtime\", \"@ember/-internals/views/lib/views/states\"], function (_exports, _runtime, _states) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n    `Ember.CoreView` is an abstract class that exists to give view-like behavior\n    to both Ember's main view class `Component` and other classes that don't need\n    the full functionality of `Component`.\n  \n    Unless you have specific needs for `CoreView`, you will use `Component`\n    in your applications.\n  \n    @class CoreView\n    @namespace Ember\n    @extends EmberObject\n    @deprecated Use `Component` instead.\n    @uses Evented\n    @uses Ember.ActionHandler\n    @private\n  */\n  var CoreView = _runtime.FrameworkObject.extend(_runtime.Evented, _runtime.ActionHandler, {\n    isView: true,\n    _states: _states.default,\n\n    init() {\n      this._super(...arguments);\n\n      this._state = 'preRender';\n      this._currentState = this._states.preRender;\n\n      if (!this.renderer) {\n        throw new Error(`Cannot instantiate a component without a renderer. Please ensure that you are creating ${this} with a proper container/registry.`);\n      }\n    },\n\n    /**\n      If the view is currently inserted into the DOM of a parent view, this\n      property will point to the parent of the view.\n       @property parentView\n      @type Ember.View\n      @default null\n      @private\n    */\n    parentView: null,\n\n    instrumentDetails(hash) {\n      hash.object = this.toString();\n      hash.containerKey = this._debugContainerKey;\n      hash.view = this;\n      return hash;\n    },\n\n    /**\n      Override the default event firing from `Evented` to\n      also call methods with the given name.\n       @method trigger\n      @param name {String}\n      @private\n    */\n    trigger(name, ...args) {\n      this._super(...arguments);\n\n      var method = this[name];\n\n      if (typeof method === 'function') {\n        return method.apply(this, args);\n      }\n    },\n\n    has(name) {\n      return typeof this[name] === 'function' || this._super(name);\n    }\n\n  });\n\n  CoreView.reopenClass({\n    isViewFactory: true\n  });\n  var _default = CoreView;\n  _exports.default = _default;\n});","define(\"@ember/-internals/views/lib/views/states\", [\"exports\", \"@ember/-internals/views/lib/views/states/pre_render\", \"@ember/-internals/views/lib/views/states/has_element\", \"@ember/-internals/views/lib/views/states/in_dom\", \"@ember/-internals/views/lib/views/states/destroying\"], function (_exports, _pre_render, _has_element, _in_dom, _destroying) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /*\n    Describe how the specified actions should behave in the various\n    states that a view can exist in. Possible states:\n  \n    * preRender: when a view is first instantiated, and after its\n      element was destroyed, it is in the preRender state\n    * hasElement: the DOM representation of the view is created,\n      and is ready to be inserted\n    * inDOM: once a view has been inserted into the DOM it is in\n      the inDOM state. A view spends the vast majority of its\n      existence in this state.\n    * destroyed: once a view has been destroyed (using the destroy\n      method), it is in this state. No further actions can be invoked\n      on a destroyed view.\n  */\n  var states = Object.freeze({\n    preRender: _pre_render.default,\n    inDOM: _in_dom.default,\n    hasElement: _has_element.default,\n    destroying: _destroying.default\n  });\n  var _default = states;\n  _exports.default = _default;\n});","define(\"@ember/-internals/views/lib/views/states/default\", [\"exports\", \"@ember/error\"], function (_exports, _error) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n  var _default = {\n    // appendChild is only legal while rendering the buffer.\n    appendChild() {\n      throw new _error.default(\"You can't use appendChild outside of the rendering process\");\n    },\n\n    // Handle events from `Ember.EventDispatcher`\n    handleEvent() {\n      return true; // continue event propagation\n    },\n\n    rerender() {},\n\n    destroy() {}\n\n  };\n\n  var _default2 = Object.freeze(_default);\n\n  _exports.default = _default2;\n});","define(\"@ember/-internals/views/lib/views/states/destroying\", [\"exports\", \"@ember/polyfills\", \"@ember/error\", \"@ember/-internals/views/lib/views/states/default\"], function (_exports, _polyfills, _error, _default3) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n  var destroying = (0, _polyfills.assign)({}, _default3.default, {\n    appendChild() {\n      throw new _error.default(\"You can't call appendChild on a view being destroyed\");\n    },\n\n    rerender() {\n      throw new _error.default(\"You can't call rerender on a view being destroyed\");\n    }\n\n  });\n\n  var _default2 = Object.freeze(destroying);\n\n  _exports.default = _default2;\n});","define(\"@ember/-internals/views/lib/views/states/has_element\", [\"exports\", \"@ember/polyfills\", \"@ember/-internals/views/lib/views/states/default\", \"@ember/runloop\", \"@ember/instrumentation\"], function (_exports, _polyfills, _default3, _runloop, _instrumentation) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n  var hasElement = (0, _polyfills.assign)({}, _default3.default, {\n    rerender(view) {\n      view.renderer.rerender(view);\n    },\n\n    destroy(view) {\n      view.renderer.remove(view);\n    },\n\n    // Handle events from `Ember.EventDispatcher`\n    handleEvent(view, eventName, event) {\n      if (view.has(eventName)) {\n        // Handler should be able to re-dispatch events, so we don't\n        // preventDefault or stopPropagation.\n        return (0, _instrumentation.flaggedInstrument)(`interaction.${eventName}`, {\n          event,\n          view\n        }, () => {\n          return (0, _runloop.join)(view, view.trigger, eventName, event);\n        });\n      } else {\n        return true; // continue event propagation\n      }\n    }\n\n  });\n\n  var _default2 = Object.freeze(hasElement);\n\n  _exports.default = _default2;\n});","define(\"@ember/-internals/views/lib/views/states/in_dom\", [\"exports\", \"@ember/-internals/utils\", \"@ember/polyfills\", \"@ember/error\", \"@ember/-internals/views/lib/views/states/has_element\"], function (_exports, _utils, _polyfills, _error, _has_element) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n  var inDOM = (0, _polyfills.assign)({}, _has_element.default, {\n    enter(view) {\n      // Register the view for event handling. This hash is used by\n      // Ember.EventDispatcher to dispatch incoming events.\n      view.renderer.register(view);\n\n      if (true\n      /* DEBUG */\n      ) {\n        var elementId = view.elementId;\n        (0, _utils.teardownMandatorySetter)(view, 'elementId');\n        Object.defineProperty(view, 'elementId', {\n          configurable: true,\n          enumerable: true,\n\n          get() {\n            return elementId;\n          },\n\n          set(value) {\n            if (value !== elementId) {\n              throw new _error.default(\"Changing a view's elementId after creation is not allowed\");\n            }\n          }\n\n        });\n      }\n    }\n\n  });\n\n  var _default = Object.freeze(inDOM);\n\n  _exports.default = _default;\n});","define(\"@ember/-internals/views/lib/views/states/pre_render\", [\"exports\", \"@ember/-internals/views/lib/views/states/default\", \"@ember/polyfills\"], function (_exports, _default3, _polyfills) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n  var preRender = (0, _polyfills.assign)({}, _default3.default);\n\n  var _default2 = Object.freeze(preRender);\n\n  _exports.default = _default2;\n});","define(\"@ember/application/globals-resolver\", [\"exports\", \"@ember/-internals/utils\", \"@ember/-internals/metal\", \"@ember/debug\", \"@ember/string\", \"@ember/-internals/runtime\", \"@ember/-internals/glimmer\", \"@ember/deprecated-features\"], function (_exports, _utils, _metal, _debug, _string, _runtime, _glimmer, _deprecatedFeatures) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n  @module @ember/application\n  */\n\n  /**\n    The DefaultResolver defines the default lookup rules to resolve\n    container lookups before consulting the container for registered\n    items:\n  \n    * templates are looked up on `Ember.TEMPLATES`\n    * other names are looked up on the application after converting\n      the name. For example, `controller:post` looks up\n      `App.PostController` by default.\n    * there are some nuances (see examples below)\n  \n    ### How Resolving Works\n  \n    The container calls this object's `resolve` method with the\n    `fullName` argument.\n  \n    It first parses the fullName into an object using `parseName`.\n  \n    Then it checks for the presence of a type-specific instance\n    method of the form `resolve[Type]` and calls it if it exists.\n    For example if it was resolving 'template:post', it would call\n    the `resolveTemplate` method.\n  \n    Its last resort is to call the `resolveOther` method.\n  \n    The methods of this object are designed to be easy to override\n    in a subclass. For example, you could enhance how a template\n    is resolved like so:\n  \n    ```app/app.js\n    import Application from '@ember/application';\n    import GlobalsResolver from '@ember/application/globals-resolver';\n  \n    App = Application.create({\n      Resolver: GlobalsResolver.extend({\n        resolveTemplate(parsedName) {\n          let resolvedTemplate = this._super(parsedName);\n          if (resolvedTemplate) { return resolvedTemplate; }\n  \n          return Ember.TEMPLATES['not_found'];\n        }\n      })\n    });\n    ```\n  \n    Some examples of how names are resolved:\n  \n    ```text\n    'template:post'           //=> Ember.TEMPLATES['post']\n    'template:posts/byline'   //=> Ember.TEMPLATES['posts/byline']\n    'template:posts.byline'   //=> Ember.TEMPLATES['posts/byline']\n    'template:blogPost'       //=> Ember.TEMPLATES['blog-post']\n    'controller:post'         //=> App.PostController\n    'controller:posts.index'  //=> App.PostsIndexController\n    'controller:blog/post'    //=> Blog.PostController\n    'controller:basic'        //=> Controller\n    'route:post'              //=> App.PostRoute\n    'route:posts.index'       //=> App.PostsIndexRoute\n    'route:blog/post'         //=> Blog.PostRoute\n    'route:basic'             //=> Route\n    'foo:post'                //=> App.PostFoo\n    'model:post'              //=> App.Post\n    ```\n  \n    @class GlobalsResolver\n    @extends EmberObject\n    @public\n    @deprecated\n  */\n  var DefaultResolver;\n\n  if (_deprecatedFeatures.GLOBALS_RESOLVER) {\n    DefaultResolver = class DefaultResolver extends _runtime.Object {\n      static create(props) {\n        // DO NOT REMOVE even though this doesn't do anything\n        // This is required for a FireFox 60+ JIT bug with our tests.\n        // without it, create(props) in our tests would lose props on a deopt.\n        return super.create(props);\n      }\n      /**\n        This will be set to the Application instance when it is\n        created.\n         @property namespace\n        @public\n        @deprecated\n      */\n\n\n      init() {\n        (true && !(false) && (0, _debug.deprecate)('Using the globals resolver is deprecated. Use the ember-resolver package instead. See https://deprecations.emberjs.com/v3.x#toc_ember-deprecate-globals-resolver', false, {\n          until: '4.0.0',\n          id: 'globals-resolver',\n          url: 'https://deprecations.emberjs.com/v3.x#toc_ember-deprecate-globals-resolver'\n        }));\n        this._parseNameCache = (0, _utils.dictionary)(null);\n      }\n\n      normalize(fullName) {\n        var [type, name] = fullName.split(':');\n        (true && !(fullName.split(':').length === 2) && (0, _debug.assert)('Tried to normalize a container name without a colon (:) in it. ' + 'You probably tried to lookup a name that did not contain a type, ' + 'a colon, and a name. A proper lookup name would be `view:post`.', fullName.split(':').length === 2));\n\n        if (type !== 'template') {\n          var result = name.replace(/(\\.|_|-)./g, m => m.charAt(1).toUpperCase());\n          return `${type}:${result}`;\n        } else {\n          return fullName;\n        }\n      }\n      /**\n        This method is called via the container's resolver method.\n        It parses the provided `fullName` and then looks up and\n        returns the appropriate template or class.\n         @method resolve\n        @param {String} fullName the lookup string\n        @return {Object} the resolved factory\n        @public\n      */\n\n\n      resolve(fullName) {\n        var parsedName = this.parseName(fullName);\n        var resolveMethodName = parsedName.resolveMethodName;\n        var resolved;\n\n        if (this[resolveMethodName]) {\n          resolved = this[resolveMethodName](parsedName);\n        }\n\n        resolved = resolved || this.resolveOther(parsedName);\n\n        if (true\n        /* DEBUG */\n        ) {\n          if (parsedName.root && parsedName.root.LOG_RESOLVER) {\n            this._logLookup(resolved, parsedName);\n          }\n\n          if (resolved) {\n            var VALIDATED_TYPES = {\n              route: ['isRouteFactory', 'Ember.Route'],\n              component: ['isComponentFactory', 'Ember.Component'],\n              view: ['isViewFactory', 'Ember.View'],\n              service: ['isServiceFactory', 'Ember.Service']\n            };\n            var validationAttributes = VALIDATED_TYPES[parsedName.type];\n\n            if (validationAttributes) {\n              var [factoryFlag, expectedType] = validationAttributes;\n              (true && !(Boolean(resolved[factoryFlag])) && (0, _debug.assert)(`Expected ${parsedName.fullName} to resolve to an ${expectedType} but ` + `instead it was ${resolved}.`, Boolean(resolved[factoryFlag])));\n            }\n          }\n        }\n\n        return resolved;\n      }\n      /**\n        Convert the string name of the form 'type:name' to\n        a Javascript object with the parsed aspects of the name\n        broken out.\n         @param {String} fullName the lookup string\n        @method parseName\n        @protected\n      */\n\n\n      parseName(fullName) {\n        return this._parseNameCache[fullName] || (this._parseNameCache[fullName] = this._parseName(fullName));\n      }\n\n      _parseName(fullName) {\n        var [type, fullNameWithoutType] = fullName.split(':');\n        var name = fullNameWithoutType;\n        var namespace = (0, _metal.get)(this, 'namespace');\n        var root = namespace;\n        var lastSlashIndex = name.lastIndexOf('/');\n        var dirname = lastSlashIndex !== -1 ? name.slice(0, lastSlashIndex) : null;\n\n        if (type !== 'template' && lastSlashIndex !== -1) {\n          var parts = name.split('/');\n          name = parts[parts.length - 1];\n          var namespaceName = (0, _string.capitalize)(parts.slice(0, -1).join('.'));\n          root = (0, _metal.findNamespace)(namespaceName);\n          (true && !(root) && (0, _debug.assert)(`You are looking for a ${name} ${type} in the ${namespaceName} namespace, but the namespace could not be found`, root));\n        }\n\n        var resolveMethodName = fullNameWithoutType === 'main' ? 'Main' : (0, _string.classify)(type);\n\n        if (!(name && type)) {\n          throw new TypeError(`Invalid fullName: \\`${fullName}\\`, must be of the form \\`type:name\\` `);\n        }\n\n        return {\n          fullName,\n          type,\n          fullNameWithoutType,\n          dirname,\n          name,\n          root,\n          resolveMethodName: `resolve${resolveMethodName}`\n        };\n      }\n      /**\n        Returns a human-readable description for a fullName. Used by the\n        Application namespace in assertions to describe the\n        precise name of the class that Ember is looking for, rather than\n        container keys.\n         @param {String} fullName the lookup string\n        @method lookupDescription\n        @protected\n      */\n\n\n      lookupDescription(fullName) {\n        var parsedName = this.parseName(fullName);\n        var description;\n\n        if (parsedName.type === 'template') {\n          return `template at ${parsedName.fullNameWithoutType.replace(/\\./g, '/')}`;\n        }\n\n        description = `${parsedName.root}.${(0, _string.classify)(parsedName.name).replace(/\\./g, '')}`;\n\n        if (parsedName.type !== 'model') {\n          description += (0, _string.classify)(parsedName.type);\n        }\n\n        return description;\n      }\n\n      makeToString(factory) {\n        return factory.toString();\n      }\n      /**\n        Given a parseName object (output from `parseName`), apply\n        the conventions expected by `Router`\n         @param {Object} parsedName a parseName object with the parsed\n          fullName lookup string\n        @method useRouterNaming\n        @protected\n      */\n\n\n      useRouterNaming(parsedName) {\n        if (parsedName.name === 'basic') {\n          parsedName.name = '';\n        } else {\n          parsedName.name = parsedName.name.replace(/\\./g, '_');\n        }\n      }\n      /**\n        Look up the template in Ember.TEMPLATES\n         @param {Object} parsedName a parseName object with the parsed\n          fullName lookup string\n        @method resolveTemplate\n        @protected\n      */\n\n\n      resolveTemplate(parsedName) {\n        var templateName = parsedName.fullNameWithoutType.replace(/\\./g, '/');\n        return (0, _glimmer.getTemplate)(templateName) || (0, _glimmer.getTemplate)((0, _string.decamelize)(templateName));\n      }\n      /**\n        Lookup the view using `resolveOther`\n         @param {Object} parsedName a parseName object with the parsed\n          fullName lookup string\n        @method resolveView\n        @protected\n      */\n\n\n      resolveView(parsedName) {\n        this.useRouterNaming(parsedName);\n        return this.resolveOther(parsedName);\n      }\n      /**\n        Lookup the controller using `resolveOther`\n         @param {Object} parsedName a parseName object with the parsed\n          fullName lookup string\n        @method resolveController\n        @protected\n      */\n\n\n      resolveController(parsedName) {\n        this.useRouterNaming(parsedName);\n        return this.resolveOther(parsedName);\n      }\n      /**\n        Lookup the route using `resolveOther`\n         @param {Object} parsedName a parseName object with the parsed\n          fullName lookup string\n        @method resolveRoute\n        @protected\n      */\n\n\n      resolveRoute(parsedName) {\n        this.useRouterNaming(parsedName);\n        return this.resolveOther(parsedName);\n      }\n      /**\n        Lookup the model on the Application namespace\n         @param {Object} parsedName a parseName object with the parsed\n          fullName lookup string\n        @method resolveModel\n        @protected\n      */\n\n\n      resolveModel(parsedName) {\n        var className = (0, _string.classify)(parsedName.name);\n        var factory = (0, _metal.get)(parsedName.root, className);\n        return factory;\n      }\n      /**\n        Look up the specified object (from parsedName) on the appropriate\n        namespace (usually on the Application)\n         @param {Object} parsedName a parseName object with the parsed\n          fullName lookup string\n        @method resolveHelper\n        @protected\n      */\n\n\n      resolveHelper(parsedName) {\n        return this.resolveOther(parsedName);\n      }\n      /**\n        Look up the specified object (from parsedName) on the appropriate\n        namespace (usually on the Application)\n         @param {Object} parsedName a parseName object with the parsed\n          fullName lookup string\n        @method resolveOther\n        @protected\n      */\n\n\n      resolveOther(parsedName) {\n        var className = (0, _string.classify)(parsedName.name) + (0, _string.classify)(parsedName.type);\n        var factory = (0, _metal.get)(parsedName.root, className);\n        return factory;\n      }\n\n      resolveMain(parsedName) {\n        var className = (0, _string.classify)(parsedName.type);\n        return (0, _metal.get)(parsedName.root, className);\n      }\n      /**\n        Used to iterate all items of a given type.\n         @method knownForType\n        @param {String} type the type to search for\n        @private\n      */\n\n\n      knownForType(type) {\n        var namespace = (0, _metal.get)(this, 'namespace');\n        var suffix = (0, _string.classify)(type);\n        var typeRegexp = new RegExp(`${suffix}$`);\n        var known = (0, _utils.dictionary)(null);\n        var knownKeys = Object.keys(namespace);\n\n        for (var index = 0; index < knownKeys.length; index++) {\n          var name = knownKeys[index];\n\n          if (typeRegexp.test(name)) {\n            var containerName = this.translateToContainerFullname(type, name);\n            known[containerName] = true;\n          }\n        }\n\n        return known;\n      }\n      /**\n        Converts provided name from the backing namespace into a container lookup name.\n         Examples:\n         * App.FooBarHelper -> helper:foo-bar\n        * App.THelper -> helper:t\n         @method translateToContainerFullname\n        @param {String} type\n        @param {String} name\n        @private\n      */\n\n\n      translateToContainerFullname(type, name) {\n        var suffix = (0, _string.classify)(type);\n        var namePrefix = name.slice(0, suffix.length * -1);\n        var dasherizedName = (0, _string.dasherize)(namePrefix);\n        return `${type}:${dasherizedName}`;\n      }\n\n    };\n\n    if (true\n    /* DEBUG */\n    ) {\n      /**\n          @method _logLookup\n          @param {Boolean} found\n          @param {Object} parsedName\n          @private\n        */\n      DefaultResolver.prototype._logLookup = function (found, parsedName) {\n        var symbol = found ? '[✓]' : '[ ]';\n        var padding;\n\n        if (parsedName.fullName.length > 60) {\n          padding = '.';\n        } else {\n          padding = new Array(60 - parsedName.fullName.length).join('.');\n        }\n\n        (0, _debug.info)(symbol, parsedName.fullName, padding, this.lookupDescription(parsedName.fullName));\n      };\n    }\n  }\n\n  var _default = DefaultResolver;\n  _exports.default = _default;\n});","define(\"@ember/application/index\", [\"exports\", \"@ember/-internals/owner\", \"@ember/application/lib/lazy_load\", \"@ember/application/lib/application\"], function (_exports, _owner, _lazy_load, _application) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"getOwner\", {\n    enumerable: true,\n    get: function () {\n      return _owner.getOwner;\n    }\n  });\n  Object.defineProperty(_exports, \"setOwner\", {\n    enumerable: true,\n    get: function () {\n      return _owner.setOwner;\n    }\n  });\n  Object.defineProperty(_exports, \"onLoad\", {\n    enumerable: true,\n    get: function () {\n      return _lazy_load.onLoad;\n    }\n  });\n  Object.defineProperty(_exports, \"runLoadHooks\", {\n    enumerable: true,\n    get: function () {\n      return _lazy_load.runLoadHooks;\n    }\n  });\n  Object.defineProperty(_exports, \"_loaded\", {\n    enumerable: true,\n    get: function () {\n      return _lazy_load._loaded;\n    }\n  });\n  Object.defineProperty(_exports, \"default\", {\n    enumerable: true,\n    get: function () {\n      return _application.default;\n    }\n  });\n});","define(\"@ember/application/instance\", [\"exports\", \"@ember/polyfills\", \"@ember/-internals/metal\", \"@ember/-internals/browser-environment\", \"@ember/-internals/views\", \"@ember/engine/instance\", \"@ember/-internals/glimmer\"], function (_exports, _polyfills, _metal, environment, _views, _instance, _glimmer) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n  @module @ember/application\n  */\n\n  /**\n    The `ApplicationInstance` encapsulates all of the stateful aspects of a\n    running `Application`.\n  \n    At a high-level, we break application boot into two distinct phases:\n  \n    * Definition time, where all of the classes, templates, and other\n      dependencies are loaded (typically in the browser).\n    * Run time, where we begin executing the application once everything\n      has loaded.\n  \n    Definition time can be expensive and only needs to happen once since it is\n    an idempotent operation. For example, between test runs and FastBoot\n    requests, the application stays the same. It is only the state that we want\n    to reset.\n  \n    That state is what the `ApplicationInstance` manages: it is responsible for\n    creating the container that contains all application state, and disposing of\n    it once the particular test run or FastBoot request has finished.\n  \n    @public\n    @class ApplicationInstance\n    @extends EngineInstance\n  */\n  var ApplicationInstance = _instance.default.extend({\n    /**\n      The `Application` for which this is an instance.\n       @property {Application} application\n      @private\n    */\n    application: null,\n\n    /**\n      The DOM events for which the event dispatcher should listen.\n       By default, the application's `Ember.EventDispatcher` listens\n      for a set of standard DOM events, such as `mousedown` and\n      `keyup`, and delegates them to your application's `Ember.View`\n      instances.\n       @private\n      @property {Object} customEvents\n    */\n    customEvents: null,\n\n    /**\n      The root DOM element of the Application as an element or a\n      [jQuery-compatible selector\n      string](http://api.jquery.com/category/selectors/).\n       @private\n      @property {String|DOMElement} rootElement\n    */\n    rootElement: null,\n\n    init() {\n      this._super(...arguments);\n\n      this.application._watchInstance(this); // Register this instance in the per-instance registry.\n      //\n      // Why do we need to register the instance in the first place?\n      // Because we need a good way for the root route (a.k.a ApplicationRoute)\n      // to notify us when it has created the root-most view. That view is then\n      // appended to the rootElement, in the case of apps, to the fixture harness\n      // in tests, or rendered to a string in the case of FastBoot.\n\n\n      this.register('-application-instance:main', this, {\n        instantiate: false\n      });\n    },\n\n    /**\n      Overrides the base `EngineInstance._bootSync` method with concerns relevant\n      to booting application (instead of engine) instances.\n       This method should only contain synchronous boot concerns. Asynchronous\n      boot concerns should eventually be moved to the `boot` method, which\n      returns a promise.\n       Until all boot code has been made asynchronous, we need to continue to\n      expose this method for use *internally* in places where we need to boot an\n      instance synchronously.\n       @private\n    */\n    _bootSync(options) {\n      if (this._booted) {\n        return this;\n      }\n\n      options = new BootOptions(options);\n      this.setupRegistry(options);\n\n      if (options.rootElement) {\n        this.rootElement = options.rootElement;\n      } else {\n        this.rootElement = this.application.rootElement;\n      }\n\n      if (options.location) {\n        (0, _metal.set)(this.router, 'location', options.location);\n      }\n\n      this.application.runInstanceInitializers(this);\n\n      if (options.isInteractive) {\n        this.setupEventDispatcher();\n      }\n\n      this._booted = true;\n      return this;\n    },\n\n    setupRegistry(options) {\n      this.constructor.setupRegistry(this.__registry__, options);\n    },\n\n    router: (0, _metal.computed)(function () {\n      return this.lookup('router:main');\n    }).readOnly(),\n\n    /**\n      This hook is called by the root-most Route (a.k.a. the ApplicationRoute)\n      when it has finished creating the root View. By default, we simply take the\n      view and append it to the `rootElement` specified on the Application.\n       In cases like FastBoot and testing, we can override this hook and implement\n      custom behavior, such as serializing to a string and sending over an HTTP\n      socket rather than appending to DOM.\n       @param view {Ember.View} the root-most view\n      @deprecated\n      @private\n    */\n    didCreateRootView(view) {\n      view.appendTo(this.rootElement);\n    },\n\n    /**\n      Tells the router to start routing. The router will ask the location for the\n      current URL of the page to determine the initial URL to start routing to.\n      To start the app at a specific URL, call `handleURL` instead.\n       @private\n    */\n    startRouting() {\n      this.router.startRouting();\n      this._didSetupRouter = true;\n    },\n\n    /**\n      Sets up the router, initializing the child router and configuring the\n      location before routing begins.\n       Because setup should only occur once, multiple calls to `setupRouter`\n      beyond the first call have no effect.\n      \n      This is commonly used in order to confirm things that rely on the router\n      are functioning properly from tests that are primarily rendering related.\n      \n      For example, from within [ember-qunit](https://github.com/emberjs/ember-qunit)'s\n      `setupRenderingTest` calling `this.owner.setupRouter()` would allow that\n      rendering test to confirm that any `<LinkTo></LinkTo>`'s that are rendered\n      have the correct URL.\n      \n      @public\n    */\n    setupRouter() {\n      if (this._didSetupRouter) {\n        return;\n      }\n\n      this._didSetupRouter = true;\n      this.router.setupRouter();\n    },\n\n    /**\n      Directs the router to route to a particular URL. This is useful in tests,\n      for example, to tell the app to start at a particular URL.\n       @param url {String} the URL the router should route to\n      @private\n    */\n    handleURL(url) {\n      this.setupRouter();\n      return this.router.handleURL(url);\n    },\n\n    /**\n      @private\n    */\n    setupEventDispatcher() {\n      var dispatcher = this.lookup('event_dispatcher:main');\n      var applicationCustomEvents = (0, _metal.get)(this.application, 'customEvents');\n      var instanceCustomEvents = (0, _metal.get)(this, 'customEvents');\n      var customEvents = (0, _polyfills.assign)({}, applicationCustomEvents, instanceCustomEvents);\n      dispatcher.setup(customEvents, this.rootElement);\n      return dispatcher;\n    },\n\n    /**\n      Returns the current URL of the app instance. This is useful when your\n      app does not update the browsers URL bar (i.e. it uses the `'none'`\n      location adapter).\n       @public\n      @return {String} the current URL\n    */\n    getURL() {\n      return this.router.url;\n    },\n\n    // `instance.visit(url)` should eventually replace `instance.handleURL()`;\n    // the test helpers can probably be switched to use this implementation too\n\n    /**\n      Navigate the instance to a particular URL. This is useful in tests, for\n      example, or to tell the app to start at a particular URL. This method\n      returns a promise that resolves with the app instance when the transition\n      is complete, or rejects if the transion was aborted due to an error.\n       @public\n      @param url {String} the destination URL\n      @return {Promise<ApplicationInstance>}\n    */\n    visit(url) {\n      this.setupRouter();\n\n      var bootOptions = this.__container__.lookup('-environment:main');\n\n      var router = this.router;\n\n      var handleTransitionResolve = () => {\n        if (!bootOptions.options.shouldRender) {\n          // No rendering is needed, and routing has completed, simply return.\n          return this;\n        } else {\n          // Ensure that the visit promise resolves when all rendering has completed\n          return (0, _glimmer.renderSettled)().then(() => this);\n        }\n      };\n\n      var handleTransitionReject = error => {\n        if (error.error) {\n          throw error.error;\n        } else if (error.name === 'TransitionAborted' && router._routerMicrolib.activeTransition) {\n          return router._routerMicrolib.activeTransition.then(handleTransitionResolve, handleTransitionReject);\n        } else if (error.name === 'TransitionAborted') {\n          throw new Error(error.message);\n        } else {\n          throw error;\n        }\n      };\n\n      var location = (0, _metal.get)(router, 'location'); // Keeps the location adapter's internal URL in-sync\n\n      location.setURL(url); // getURL returns the set url with the rootURL stripped off\n\n      return router.handleURL(location.getURL()).then(handleTransitionResolve, handleTransitionReject);\n    },\n\n    willDestroy() {\n      this._super(...arguments);\n\n      this.application._unwatchInstance(this);\n    }\n\n  });\n\n  ApplicationInstance.reopenClass({\n    /**\n     @private\n     @method setupRegistry\n     @param {Registry} registry\n     @param {BootOptions} options\n    */\n    setupRegistry(registry, options = {}) {\n      if (!options.toEnvironment) {\n        options = new BootOptions(options);\n      }\n\n      registry.register('-environment:main', options.toEnvironment(), {\n        instantiate: false\n      });\n      registry.register('service:-document', options.document, {\n        instantiate: false\n      });\n\n      this._super(registry, options);\n    }\n\n  });\n  /**\n    A list of boot-time configuration options for customizing the behavior of\n    an `ApplicationInstance`.\n  \n    This is an interface class that exists purely to document the available\n    options; you do not need to construct it manually. Simply pass a regular\n    JavaScript object containing the desired options into methods that require\n    one of these options object:\n  \n    ```javascript\n    MyApp.visit(\"/\", { location: \"none\", rootElement: \"#container\" });\n    ```\n  \n    Not all combinations of the supported options are valid. See the documentation\n    on `Application#visit` for the supported configurations.\n  \n    Internal, experimental or otherwise unstable flags are marked as private.\n  \n    @class BootOptions\n    @namespace ApplicationInstance\n    @public\n  */\n\n  class BootOptions {\n    constructor(options = {}) {\n      /**\n        Provide a specific instance of jQuery. This is useful in conjunction with\n        the `document` option, as it allows you to use a copy of `jQuery` that is\n        appropriately bound to the foreign `document` (e.g. a jsdom).\n         This is highly experimental and support very incomplete at the moment.\n         @property jQuery\n        @type Object\n        @default auto-detected\n        @private\n      */\n      this.jQuery = _views.jQuery; // This default is overridable below\n\n      /**\n        Interactive mode: whether we need to set up event delegation and invoke\n        lifecycle callbacks on Components.\n         @property isInteractive\n        @type boolean\n        @default auto-detected\n        @private\n      */\n\n      this.isInteractive = environment.hasDOM; // This default is overridable below\n\n      /**\n        @property _renderMode\n        @type string\n        @default false\n        @private\n      */\n\n      this._renderMode = options._renderMode;\n      /**\n        Run in a full browser environment.\n         When this flag is set to `false`, it will disable most browser-specific\n        and interactive features. Specifically:\n         * It does not use `jQuery` to append the root view; the `rootElement`\n          (either specified as a subsequent option or on the application itself)\n          must already be an `Element` in the given `document` (as opposed to a\n          string selector).\n         * It does not set up an `EventDispatcher`.\n         * It does not run any `Component` lifecycle hooks (such as `didInsertElement`).\n         * It sets the `location` option to `\"none\"`. (If you would like to use\n          the location adapter specified in the app's router instead, you can also\n          specify `{ location: null }` to specifically opt-out.)\n         @property isBrowser\n        @type boolean\n        @default auto-detected\n        @public\n      */\n\n      if (options.isBrowser !== undefined) {\n        this.isBrowser = Boolean(options.isBrowser);\n      } else {\n        this.isBrowser = environment.hasDOM;\n      }\n\n      if (!this.isBrowser) {\n        this.jQuery = null;\n        this.isInteractive = false;\n        this.location = 'none';\n      }\n      /**\n        Disable rendering completely.\n         When this flag is set to `false`, it will disable the entire rendering\n        pipeline. Essentially, this puts the app into \"routing-only\" mode. No\n        templates will be rendered, and no Components will be created.\n         @property shouldRender\n        @type boolean\n        @default true\n        @public\n      */\n\n\n      if (options.shouldRender !== undefined) {\n        this.shouldRender = Boolean(options.shouldRender);\n      } else {\n        this.shouldRender = true;\n      }\n\n      if (!this.shouldRender) {\n        this.jQuery = null;\n        this.isInteractive = false;\n      }\n      /**\n        If present, render into the given `Document` object instead of the\n        global `window.document` object.\n         In practice, this is only useful in non-browser environment or in\n        non-interactive mode, because Ember's `jQuery` dependency is\n        implicitly bound to the current document, causing event delegation\n        to not work properly when the app is rendered into a foreign\n        document object (such as an iframe's `contentDocument`).\n         In non-browser mode, this could be a \"`Document`-like\" object as\n        Ember only interact with a small subset of the DOM API in non-\n        interactive mode. While the exact requirements have not yet been\n        formalized, the `SimpleDOM` library's implementation is known to\n        work.\n         @property document\n        @type Document\n        @default the global `document` object\n        @public\n      */\n\n\n      if (options.document) {\n        this.document = options.document;\n      } else {\n        this.document = typeof document !== 'undefined' ? document : null;\n      }\n      /**\n        If present, overrides the application's `rootElement` property on\n        the instance. This is useful for testing environment, where you\n        might want to append the root view to a fixture area.\n         In non-browser mode, because Ember does not have access to jQuery,\n        this options must be specified as a DOM `Element` object instead of\n        a selector string.\n         See the documentation on `Application`'s `rootElement` for\n        details.\n         @property rootElement\n        @type String|Element\n        @default null\n        @public\n       */\n\n\n      if (options.rootElement) {\n        this.rootElement = options.rootElement;\n      } // Set these options last to give the user a chance to override the\n      // defaults from the \"combo\" options like `isBrowser` (although in\n      // practice, the resulting combination is probably invalid)\n\n      /**\n        If present, overrides the router's `location` property with this\n        value. This is useful for environments where trying to modify the\n        URL would be inappropriate.\n         @property location\n        @type string\n        @default null\n        @public\n      */\n\n\n      if (options.location !== undefined) {\n        this.location = options.location;\n      }\n\n      if (options.jQuery !== undefined) {\n        this.jQuery = options.jQuery;\n      }\n\n      if (options.isInteractive !== undefined) {\n        this.isInteractive = Boolean(options.isInteractive);\n      }\n    }\n\n    toEnvironment() {\n      // Do we really want to assign all of this!?\n      var env = (0, _polyfills.assign)({}, environment); // For compatibility with existing code\n\n      env.hasDOM = this.isBrowser;\n      env.isInteractive = this.isInteractive;\n      env._renderMode = this._renderMode;\n      env.options = this;\n      return env;\n    }\n\n  }\n\n  var _default = ApplicationInstance;\n  _exports.default = _default;\n});","define(\"@ember/application/lib/application\", [\"exports\", \"@ember/-internals/utils\", \"@ember/-internals/environment\", \"@ember/-internals/browser-environment\", \"@ember/debug\", \"@ember/runloop\", \"@ember/-internals/metal\", \"@ember/application/lib/lazy_load\", \"@ember/-internals/runtime\", \"@ember/-internals/views\", \"@ember/-internals/routing\", \"@ember/application/instance\", \"@ember/engine\", \"@ember/-internals/container\", \"@ember/-internals/glimmer\", \"@ember/deprecated-features\"], function (_exports, _utils, _environment, _browserEnvironment, _debug, _runloop, _metal, _lazy_load, _runtime, _views, _routing, _instance, _engine, _container, _glimmer, _deprecatedFeatures) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n  @module @ember/application\n  */\n  var librariesRegistered = false;\n  /**\n    An instance of `Application` is the starting point for every Ember\n    application. It instantiates, initializes and coordinates the\n    objects that make up your app.\n  \n    Each Ember app has one and only one `Application` object. Although\n    Ember CLI creates this object implicitly, the `Application` class\n    is defined in the `app/app.js`. You can define a `ready` method on the\n    `Application` class, which will be run by Ember when the application is\n    initialized.\n  \n    ```app/app.js\n    const App = Application.extend({\n      ready() {\n        // your code here\n      }\n    })\n    ```\n  \n    Because `Application` ultimately inherits from `Ember.Namespace`, any classes\n    you create will have useful string representations when calling `toString()`.\n    See the `Ember.Namespace` documentation for more information.\n  \n    While you can think of your `Application` as a container that holds the\n    other classes in your application, there are several other responsibilities\n    going on under-the-hood that you may want to understand. It is also important\n    to understand that an `Application` is different from an `ApplicationInstance`.\n    Refer to the Guides to understand the difference between these.\n  \n    ### Event Delegation\n  \n    Ember uses a technique called _event delegation_. This allows the framework\n    to set up a global, shared event listener instead of requiring each view to\n    do it manually. For example, instead of each view registering its own\n    `mousedown` listener on its associated element, Ember sets up a `mousedown`\n    listener on the `body`.\n  \n    If a `mousedown` event occurs, Ember will look at the target of the event and\n    start walking up the DOM node tree, finding corresponding views and invoking\n    their `mouseDown` method as it goes.\n  \n    `Application` has a number of default events that it listens for, as\n    well as a mapping from lowercase events to camel-cased view method names. For\n    example, the `keypress` event causes the `keyPress` method on the view to be\n    called, the `dblclick` event causes `doubleClick` to be called, and so on.\n  \n    If there is a bubbling browser event that Ember does not listen for by\n    default, you can specify custom events and their corresponding view method\n    names by setting the application's `customEvents` property:\n  \n    ```app/app.js\n    import Application from '@ember/application';\n  \n    let App = Application.extend({\n      customEvents: {\n        // add support for the paste event\n        paste: 'paste'\n      }\n    });\n    ```\n  \n    To prevent Ember from setting up a listener for a default event,\n    specify the event name with a `null` value in the `customEvents`\n    property:\n  \n    ```app/app.js\n    import Application from '@ember/application';\n  \n    let App = Application.extend({\n      customEvents: {\n        // prevent listeners for mouseenter/mouseleave events\n        mouseenter: null,\n        mouseleave: null\n      }\n    });\n    ```\n  \n    By default, the application sets up these event listeners on the document\n    body. However, in cases where you are embedding an Ember application inside\n    an existing page, you may want it to set up the listeners on an element\n    inside the body.\n  \n    For example, if only events inside a DOM element with the ID of `ember-app`\n    should be delegated, set your application's `rootElement` property:\n  \n    ```app/app.js\n    import Application from '@ember/application';\n  \n    let App = Application.extend({\n      rootElement: '#ember-app'\n    });\n    ```\n  \n    The `rootElement` can be either a DOM element or a jQuery-compatible selector\n    string. Note that *views appended to the DOM outside the root element will\n    not receive events.* If you specify a custom root element, make sure you only\n    append views inside it!\n  \n    To learn more about the events Ember components use, see\n  \n    [components/handling-events](https://guides.emberjs.com/release/components/handling-events/#toc_event-names).\n  \n    ### Initializers\n  \n    To add behavior to the Application's boot process, you can define initializers in\n    the `app/initializers` directory, or with `ember generate initializer` using Ember CLI.\n    These files should export a named `initialize` function which will receive the created `application`\n    object as its first argument.\n  \n    ```javascript\n    export function initialize(application) {\n      // application.inject('route', 'foo', 'service:foo');\n    }\n    ```\n  \n    Application initializers can be used for a variety of reasons including:\n  \n    - setting up external libraries\n    - injecting dependencies\n    - setting up event listeners in embedded apps\n    - deferring the boot process using the `deferReadiness` and `advanceReadiness` APIs.\n  \n    ### Routing\n  \n    In addition to creating your application's router, `Application` is\n    also responsible for telling the router when to start routing. Transitions\n    between routes can be logged with the `LOG_TRANSITIONS` flag, and more\n    detailed intra-transition logging can be logged with\n    the `LOG_TRANSITIONS_INTERNAL` flag:\n  \n    ```javascript\n    import Application from '@ember/application';\n  \n    let App = Application.create({\n      LOG_TRANSITIONS: true, // basic logging of successful transitions\n      LOG_TRANSITIONS_INTERNAL: true // detailed logging of all routing steps\n    });\n    ```\n  \n    By default, the router will begin trying to translate the current URL into\n    application state once the browser emits the `DOMContentReady` event. If you\n    need to defer routing, you can call the application's `deferReadiness()`\n    method. Once routing can begin, call the `advanceReadiness()` method.\n  \n    If there is any setup required before routing begins, you can implement a\n    `ready()` method on your app that will be invoked immediately before routing\n    begins.\n  \n    @class Application\n    @extends Engine\n    @uses RegistryProxyMixin\n    @public\n  */\n\n  var Application = _engine.default.extend({\n    /**\n      The root DOM element of the Application. This can be specified as an\n      element or a\n      [jQuery-compatible selector string](http://api.jquery.com/category/selectors/).\n       This is the element that will be passed to the Application's,\n      `eventDispatcher`, which sets up the listeners for event delegation. Every\n      view in your application should be a child of the element you specify here.\n       @property rootElement\n      @type DOMElement\n      @default 'body'\n      @public\n    */\n    rootElement: 'body',\n\n    /**\n      The `Ember.EventDispatcher` responsible for delegating events to this\n      application's views.\n       The event dispatcher is created by the application at initialization time\n      and sets up event listeners on the DOM element described by the\n      application's `rootElement` property.\n       See the documentation for `Ember.EventDispatcher` for more information.\n       @property eventDispatcher\n      @type Ember.EventDispatcher\n      @default null\n      @public\n    */\n    eventDispatcher: null,\n\n    /**\n      The DOM events for which the event dispatcher should listen.\n       By default, the application's `Ember.EventDispatcher` listens\n      for a set of standard DOM events, such as `mousedown` and\n      `keyup`, and delegates them to your application's `Ember.View`\n      instances.\n       If you would like additional bubbling events to be delegated to your\n      views, set your `Application`'s `customEvents` property\n      to a hash containing the DOM event name as the key and the\n      corresponding view method name as the value. Setting an event to\n      a value of `null` will prevent a default event listener from being\n      added for that event.\n       To add new events to be listened to:\n       ```app/app.js\n      import Application from '@ember/application';\n       let App = Application.extend({\n        customEvents: {\n          // add support for the paste event\n          paste: 'paste'\n        }\n      });\n      ```\n       To prevent default events from being listened to:\n       ```app/app.js\n      import Application from '@ember/application';\n       let App = Application.extend({\n        customEvents: {\n          // remove support for mouseenter / mouseleave events\n          mouseenter: null,\n          mouseleave: null\n        }\n      });\n      ```\n      @property customEvents\n      @type Object\n      @default null\n      @public\n    */\n    customEvents: null,\n\n    /**\n      Whether the application should automatically start routing and render\n      templates to the `rootElement` on DOM ready. While default by true,\n      other environments such as FastBoot or a testing harness can set this\n      property to `false` and control the precise timing and behavior of the boot\n      process.\n       @property autoboot\n      @type Boolean\n      @default true\n      @private\n    */\n    autoboot: true,\n\n    /**\n      Whether the application should be configured for the legacy \"globals mode\".\n      Under this mode, the Application object serves as a global namespace for all\n      classes.\n       ```javascript\n      import Application from '@ember/application';\n      import Component from '@ember/component';\n       let App = Application.create({\n        ...\n      });\n       App.Router.reopen({\n        location: 'none'\n      });\n       App.Router.map({\n        ...\n      });\n       App.MyComponent = Component.extend({\n        ...\n      });\n      ```\n       This flag also exposes other internal APIs that assumes the existence of\n      a special \"default instance\", like `App.__container__.lookup(...)`.\n       This option is currently not configurable, its value is derived from\n      the `autoboot` flag – disabling `autoboot` also implies opting-out of\n      globals mode support, although they are ultimately orthogonal concerns.\n       Some of the global modes features are already deprecated in 1.x. The\n      existence of this flag is to untangle the globals mode code paths from\n      the autoboot code paths, so that these legacy features can be reviewed\n      for deprecation/removal separately.\n       Forcing the (autoboot=true, _globalsMode=false) here and running the tests\n      would reveal all the places where we are still relying on these legacy\n      behavior internally (mostly just tests).\n       @property _globalsMode\n      @type Boolean\n      @default true\n      @private\n    */\n    _globalsMode: true,\n\n    /**\n      An array of application instances created by `buildInstance()`. Used\n      internally to ensure that all instances get destroyed.\n       @property _applicationInstances\n      @type Array\n      @default null\n      @private\n    */\n    _applicationInstances: null,\n\n    init() {\n      // eslint-disable-line no-unused-vars\n      this._super(...arguments);\n\n      if (!this.$) {\n        this.$ = _views.jQuery;\n      }\n\n      registerLibraries();\n\n      if (true\n      /* DEBUG */\n      ) {\n        if (_environment.ENV.LOG_VERSION) {\n          // we only need to see this once per Application#init\n          _environment.ENV.LOG_VERSION = false;\n\n          _metal.libraries.logVersions();\n        }\n      } // Start off the number of deferrals at 1. This will be decremented by\n      // the Application's own `boot` method.\n\n\n      this._readinessDeferrals = 1;\n      this._booted = false;\n      this._applicationInstances = new Set();\n      this.autoboot = this._globalsMode = Boolean(this.autoboot);\n\n      if (this._globalsMode) {\n        this._prepareForGlobalsMode();\n      }\n\n      if (this.autoboot) {\n        this.waitForDOMReady();\n      }\n    },\n\n    /**\n      Create an ApplicationInstance for this application.\n       @public\n      @method buildInstance\n      @return {ApplicationInstance} the application instance\n    */\n    buildInstance(options = {}) {\n      options.base = this;\n      options.application = this;\n      return _instance.default.create(options);\n    },\n\n    /**\n      Start tracking an ApplicationInstance for this application.\n      Used when the ApplicationInstance is created.\n       @private\n      @method _watchInstance\n    */\n    _watchInstance(instance) {\n      this._applicationInstances.add(instance);\n    },\n\n    /**\n      Stop tracking an ApplicationInstance for this application.\n      Used when the ApplicationInstance is about to be destroyed.\n       @private\n      @method _unwatchInstance\n    */\n    _unwatchInstance(instance) {\n      return this._applicationInstances.delete(instance);\n    },\n\n    /**\n      Enable the legacy globals mode by allowing this application to act\n      as a global namespace. See the docs on the `_globalsMode` property\n      for details.\n       Most of these features are already deprecated in 1.x, so we can\n      stop using them internally and try to remove them.\n       @private\n      @method _prepareForGlobalsMode\n    */\n    _prepareForGlobalsMode() {\n      // Create subclass of Router for this Application instance.\n      // This is to ensure that someone reopening `App.Router` does not\n      // tamper with the default `Router`.\n      this.Router = (this.Router || _routing.Router).extend();\n\n      this._buildDeprecatedInstance();\n    },\n\n    /*\n      Build the deprecated instance for legacy globals mode support.\n      Called when creating and resetting the application.\n       This is orthogonal to autoboot: the deprecated instance needs to\n      be created at Application construction (not boot) time to expose\n      App.__container__. If autoboot sees that this instance exists,\n      it will continue booting it to avoid doing unncessary work (as\n      opposed to building a new instance at boot time), but they are\n      otherwise unrelated.\n       @private\n      @method _buildDeprecatedInstance\n    */\n    _buildDeprecatedInstance() {\n      // Build a default instance\n      var instance = this.buildInstance(); // Legacy support for App.__container__ and other global methods\n      // on App that rely on a single, default instance.\n\n      this.__deprecatedInstance__ = instance;\n      this.__container__ = instance.__container__;\n    },\n\n    /**\n      Automatically kick-off the boot process for the application once the\n      DOM has become ready.\n       The initialization itself is scheduled on the actions queue which\n      ensures that code-loading finishes before booting.\n       If you are asynchronously loading code, you should call `deferReadiness()`\n      to defer booting, and then call `advanceReadiness()` once all of your code\n      has finished loading.\n       @private\n      @method waitForDOMReady\n    */\n    waitForDOMReady() {\n      if (!this.$ || this.$.isReady) {\n        (0, _runloop.schedule)('actions', this, 'domReady');\n      } else {\n        this.$().ready((0, _runloop.bind)(this, 'domReady'));\n      }\n    },\n\n    /**\n      This is the autoboot flow:\n       1. Boot the app by calling `this.boot()`\n      2. Create an instance (or use the `__deprecatedInstance__` in globals mode)\n      3. Boot the instance by calling `instance.boot()`\n      4. Invoke the `App.ready()` callback\n      5. Kick-off routing on the instance\n       Ideally, this is all we would need to do:\n       ```javascript\n      _autoBoot() {\n        this.boot().then(() => {\n          let instance = (this._globalsMode) ? this.__deprecatedInstance__ : this.buildInstance();\n          return instance.boot();\n        }).then((instance) => {\n          App.ready();\n          instance.startRouting();\n        });\n      }\n      ```\n       Unfortunately, we cannot actually write this because we need to participate\n      in the \"synchronous\" boot process. While the code above would work fine on\n      the initial boot (i.e. DOM ready), when `App.reset()` is called, we need to\n      boot a new instance synchronously (see the documentation on `_bootSync()`\n      for details).\n       Because of this restriction, the actual logic of this method is located\n      inside `didBecomeReady()`.\n       @private\n      @method domReady\n    */\n    domReady() {\n      if (this.isDestroyed) {\n        return;\n      }\n\n      this._bootSync(); // Continues to `didBecomeReady`\n\n    },\n\n    /**\n      Use this to defer readiness until some condition is true.\n       Example:\n       ```javascript\n      import Application from '@ember/application';\n       let App = Application.create();\n       App.deferReadiness();\n       // $ is a reference to the jQuery object/function\n      import $ from 'jquery;\n       $.getJSON('/auth-token', function(token) {\n        App.token = token;\n        App.advanceReadiness();\n      });\n      ```\n       This allows you to perform asynchronous setup logic and defer\n      booting your application until the setup has finished.\n       However, if the setup requires a loading UI, it might be better\n      to use the router for this purpose.\n       @method deferReadiness\n      @public\n    */\n    deferReadiness() {\n      (true && !(this instanceof Application) && (0, _debug.assert)('You must call deferReadiness on an instance of Application', this instanceof Application));\n      (true && !(this._readinessDeferrals > 0) && (0, _debug.assert)('You cannot defer readiness since the `ready()` hook has already been called.', this._readinessDeferrals > 0));\n      this._readinessDeferrals++;\n    },\n\n    /**\n      Call `advanceReadiness` after any asynchronous setup logic has completed.\n      Each call to `deferReadiness` must be matched by a call to `advanceReadiness`\n      or the application will never become ready and routing will not begin.\n       @method advanceReadiness\n      @see {Application#deferReadiness}\n      @public\n    */\n    advanceReadiness() {\n      (true && !(this instanceof Application) && (0, _debug.assert)('You must call advanceReadiness on an instance of Application', this instanceof Application));\n      this._readinessDeferrals--;\n\n      if (this._readinessDeferrals === 0) {\n        (0, _runloop.once)(this, this.didBecomeReady);\n      }\n    },\n\n    /**\n      Initialize the application and return a promise that resolves with the `Application`\n      object when the boot process is complete.\n       Run any application initializers and run the application load hook. These hooks may\n      choose to defer readiness. For example, an authentication hook might want to defer\n      readiness until the auth token has been retrieved.\n       By default, this method is called automatically on \"DOM ready\"; however, if autoboot\n      is disabled, this is automatically called when the first application instance is\n      created via `visit`.\n       @public\n      @method boot\n      @return {Promise<Application,Error>}\n    */\n    boot() {\n      if (this._bootPromise) {\n        return this._bootPromise;\n      }\n\n      try {\n        this._bootSync();\n      } catch (_) {// Ignore the error: in the asynchronous boot path, the error is already reflected\n        // in the promise rejection\n      }\n\n      return this._bootPromise;\n    },\n\n    /**\n      Unfortunately, a lot of existing code assumes the booting process is\n      \"synchronous\". Specifically, a lot of tests assumes the last call to\n      `app.advanceReadiness()` or `app.reset()` will result in the app being\n      fully-booted when the current runloop completes.\n       We would like new code (like the `visit` API) to stop making this assumption,\n      so we created the asynchronous version above that returns a promise. But until\n      we have migrated all the code, we would have to expose this method for use\n      *internally* in places where we need to boot an app \"synchronously\".\n       @private\n    */\n    _bootSync() {\n      if (this._booted) {\n        return;\n      } // Even though this returns synchronously, we still need to make sure the\n      // boot promise exists for book-keeping purposes: if anything went wrong in\n      // the boot process, we need to store the error as a rejection on the boot\n      // promise so that a future caller of `boot()` can tell what failed.\n\n\n      var defer = this._bootResolver = _runtime.RSVP.defer();\n\n      this._bootPromise = defer.promise;\n\n      try {\n        this.runInitializers();\n        (0, _lazy_load.runLoadHooks)('application', this);\n        this.advanceReadiness(); // Continues to `didBecomeReady`\n      } catch (error) {\n        // For the asynchronous boot path\n        defer.reject(error); // For the synchronous boot path\n\n        throw error;\n      }\n    },\n\n    /**\n      Reset the application. This is typically used only in tests. It cleans up\n      the application in the following order:\n       1. Deactivate existing routes\n      2. Destroy all objects in the container\n      3. Create a new application container\n      4. Re-route to the existing url\n       Typical Example:\n       ```javascript\n      import Application from '@ember/application';\n      let App;\n       run(function() {\n        App = Application.create();\n      });\n       module('acceptance test', {\n        setup: function() {\n          App.reset();\n        }\n      });\n       test('first test', function() {\n        // App is freshly reset\n      });\n       test('second test', function() {\n        // App is again freshly reset\n      });\n      ```\n       Advanced Example:\n       Occasionally you may want to prevent the app from initializing during\n      setup. This could enable extra configuration, or enable asserting prior\n      to the app becoming ready.\n       ```javascript\n      import Application from '@ember/application';\n      let App;\n       run(function() {\n        App = Application.create();\n      });\n       module('acceptance test', {\n        setup: function() {\n          run(function() {\n            App.reset();\n            App.deferReadiness();\n          });\n        }\n      });\n       test('first test', function() {\n        ok(true, 'something before app is initialized');\n         run(function() {\n          App.advanceReadiness();\n        });\n         ok(true, 'something after app is initialized');\n      });\n      ```\n       @method reset\n      @public\n    */\n    reset() {\n      (true && !(this._globalsMode && this.autoboot) && (0, _debug.assert)(`Calling reset() on instances of \\`Application\\` is not\n            supported when globals mode is disabled; call \\`visit()\\` to\n            create new \\`ApplicationInstance\\`s and dispose them\n            via their \\`destroy()\\` method instead.`, this._globalsMode && this.autoboot));\n      var instance = this.__deprecatedInstance__;\n      this._readinessDeferrals = 1;\n      this._bootPromise = null;\n      this._bootResolver = null;\n      this._booted = false;\n\n      function handleReset() {\n        (0, _runloop.run)(instance, 'destroy');\n\n        this._buildDeprecatedInstance();\n\n        (0, _runloop.schedule)('actions', this, '_bootSync');\n      }\n\n      (0, _runloop.join)(this, handleReset);\n    },\n\n    /**\n      @private\n      @method didBecomeReady\n    */\n    didBecomeReady() {\n      try {\n        // TODO: Is this still needed for _globalsMode = false?\n        if (!(0, _debug.isTesting)()) {\n          // Eagerly name all classes that are already loaded\n          (0, _metal.processAllNamespaces)();\n          (0, _metal.setNamespaceSearchDisabled)(true);\n        } // See documentation on `_autoboot()` for details\n\n\n        if (this.autoboot) {\n          var instance;\n\n          if (this._globalsMode) {\n            // If we already have the __deprecatedInstance__ lying around, boot it to\n            // avoid unnecessary work\n            instance = this.__deprecatedInstance__;\n          } else {\n            // Otherwise, build an instance and boot it. This is currently unreachable,\n            // because we forced _globalsMode to === autoboot; but having this branch\n            // allows us to locally toggle that flag for weeding out legacy globals mode\n            // dependencies independently\n            instance = this.buildInstance();\n          }\n\n          instance._bootSync(); // TODO: App.ready() is not called when autoboot is disabled, is this correct?\n\n\n          this.ready();\n          instance.startRouting();\n        } // For the asynchronous boot path\n\n\n        this._bootResolver.resolve(this); // For the synchronous boot path\n\n\n        this._booted = true;\n      } catch (error) {\n        // For the asynchronous boot path\n        this._bootResolver.reject(error); // For the synchronous boot path\n\n\n        throw error;\n      }\n    },\n\n    /**\n      Called when the Application has become ready, immediately before routing\n      begins. The call will be delayed until the DOM has become ready.\n       @event ready\n      @public\n    */\n    ready() {\n      return this;\n    },\n\n    // This method must be moved to the application instance object\n    willDestroy() {\n      this._super(...arguments);\n\n      (0, _metal.setNamespaceSearchDisabled)(false);\n      this._booted = false;\n      this._bootPromise = null;\n      this._bootResolver = null;\n\n      if (_lazy_load._loaded.application === this) {\n        _lazy_load._loaded.application = undefined;\n      }\n\n      if (this._applicationInstances.size) {\n        this._applicationInstances.forEach(i => i.destroy());\n\n        this._applicationInstances.clear();\n      }\n    },\n\n    /**\n      Boot a new instance of `ApplicationInstance` for the current\n      application and navigate it to the given `url`. Returns a `Promise` that\n      resolves with the instance when the initial routing and rendering is\n      complete, or rejects with any error that occurred during the boot process.\n       When `autoboot` is disabled, calling `visit` would first cause the\n      application to boot, which runs the application initializers.\n       This method also takes a hash of boot-time configuration options for\n      customizing the instance's behavior. See the documentation on\n      `ApplicationInstance.BootOptions` for details.\n       `ApplicationInstance.BootOptions` is an interface class that exists\n      purely to document the available options; you do not need to construct it\n      manually. Simply pass a regular JavaScript object containing of the\n      desired options:\n       ```javascript\n      MyApp.visit(\"/\", { location: \"none\", rootElement: \"#container\" });\n      ```\n       ### Supported Scenarios\n       While the `BootOptions` class exposes a large number of knobs, not all\n      combinations of them are valid; certain incompatible combinations might\n      result in unexpected behavior.\n       For example, booting the instance in the full browser environment\n      while specifying a foreign `document` object (e.g. `{ isBrowser: true,\n      document: iframe.contentDocument }`) does not work correctly today,\n      largely due to Ember's jQuery dependency.\n       Currently, there are three officially supported scenarios/configurations.\n      Usages outside of these scenarios are not guaranteed to work, but please\n      feel free to file bug reports documenting your experience and any issues\n      you encountered to help expand support.\n       #### Browser Applications (Manual Boot)\n       The setup is largely similar to how Ember works out-of-the-box. Normally,\n      Ember will boot a default instance for your Application on \"DOM ready\".\n      However, you can customize this behavior by disabling `autoboot`.\n       For example, this allows you to render a miniture demo of your application\n      into a specific area on your marketing website:\n       ```javascript\n      import MyApp from 'my-app';\n       $(function() {\n        let App = MyApp.create({ autoboot: false });\n         let options = {\n          // Override the router's location adapter to prevent it from updating\n          // the URL in the address bar\n          location: 'none',\n           // Override the default `rootElement` on the app to render into a\n          // specific `div` on the page\n          rootElement: '#demo'\n        };\n         // Start the app at the special demo URL\n        App.visit('/demo', options);\n      });\n      ```\n       Or perhaps you might want to boot two instances of your app on the same\n      page for a split-screen multiplayer experience:\n       ```javascript\n      import MyApp from 'my-app';\n       $(function() {\n        let App = MyApp.create({ autoboot: false });\n         let sessionId = MyApp.generateSessionID();\n         let player1 = App.visit(`/matches/join?name=Player+1&session=${sessionId}`, { rootElement: '#left', location: 'none' });\n        let player2 = App.visit(`/matches/join?name=Player+2&session=${sessionId}`, { rootElement: '#right', location: 'none' });\n         Promise.all([player1, player2]).then(() => {\n          // Both apps have completed the initial render\n          $('#loading').fadeOut();\n        });\n      });\n      ```\n       Do note that each app instance maintains their own registry/container, so\n      they will run in complete isolation by default.\n       #### Server-Side Rendering (also known as FastBoot)\n       This setup allows you to run your Ember app in a server environment using\n      Node.js and render its content into static HTML for SEO purposes.\n       ```javascript\n      const HTMLSerializer = new SimpleDOM.HTMLSerializer(SimpleDOM.voidMap);\n       function renderURL(url) {\n        let dom = new SimpleDOM.Document();\n        let rootElement = dom.body;\n        let options = { isBrowser: false, document: dom, rootElement: rootElement };\n         return MyApp.visit(options).then(instance => {\n          try {\n            return HTMLSerializer.serialize(rootElement.firstChild);\n          } finally {\n            instance.destroy();\n          }\n        });\n      }\n      ```\n       In this scenario, because Ember does not have access to a global `document`\n      object in the Node.js environment, you must provide one explicitly. In practice,\n      in the non-browser environment, the stand-in `document` object only needs to\n      implement a limited subset of the full DOM API. The `SimpleDOM` library is known\n      to work.\n       Since there is no access to jQuery in the non-browser environment, you must also\n      specify a DOM `Element` object in the same `document` for the `rootElement` option\n      (as opposed to a selector string like `\"body\"`).\n       See the documentation on the `isBrowser`, `document` and `rootElement` properties\n      on `ApplicationInstance.BootOptions` for details.\n       #### Server-Side Resource Discovery\n       This setup allows you to run the routing layer of your Ember app in a server\n      environment using Node.js and completely disable rendering. This allows you\n      to simulate and discover the resources (i.e. AJAX requests) needed to fulfill\n      a given request and eagerly \"push\" these resources to the client.\n       ```app/initializers/network-service.js\n      import BrowserNetworkService from 'app/services/network/browser';\n      import NodeNetworkService from 'app/services/network/node';\n       // Inject a (hypothetical) service for abstracting all AJAX calls and use\n      // the appropriate implementation on the client/server. This also allows the\n      // server to log all the AJAX calls made during a particular request and use\n      // that for resource-discovery purpose.\n       export function initialize(application) {\n        if (window) { // browser\n          application.register('service:network', BrowserNetworkService);\n        } else { // node\n          application.register('service:network', NodeNetworkService);\n        }\n         application.inject('route', 'network', 'service:network');\n      };\n       export default {\n        name: 'network-service',\n        initialize: initialize\n      };\n      ```\n       ```app/routes/post.js\n      import Route from '@ember/routing/route';\n       // An example of how the (hypothetical) service is used in routes.\n       export default Route.extend({\n        model(params) {\n          return this.network.fetch(`/api/posts/${params.post_id}.json`);\n        },\n         afterModel(post) {\n          if (post.isExternalContent) {\n            return this.network.fetch(`/api/external/?url=${post.externalURL}`);\n          } else {\n            return post;\n          }\n        }\n      });\n      ```\n       ```javascript\n      // Finally, put all the pieces together\n       function discoverResourcesFor(url) {\n        return MyApp.visit(url, { isBrowser: false, shouldRender: false }).then(instance => {\n          let networkService = instance.lookup('service:network');\n          return networkService.requests; // => { \"/api/posts/123.json\": \"...\" }\n        });\n      }\n      ```\n       @public\n      @method visit\n      @param url {String} The initial URL to navigate to\n      @param options {ApplicationInstance.BootOptions}\n      @return {Promise<ApplicationInstance, Error>}\n    */\n    visit(url, options) {\n      return this.boot().then(() => {\n        var instance = this.buildInstance();\n        return instance.boot(options).then(() => instance.visit(url)).catch(error => {\n          (0, _runloop.run)(instance, 'destroy');\n          throw error;\n        });\n      });\n    }\n\n  });\n\n  Application.reopenClass({\n    /**\n      This creates a registry with the default Ember naming conventions.\n       It also configures the registry:\n       * registered views are created every time they are looked up (they are\n        not singletons)\n      * registered templates are not factories; the registered value is\n        returned directly.\n      * the router receives the application as its `namespace` property\n      * all controllers receive the router as their `target` and `controllers`\n        properties\n      * all controllers receive the application as their `namespace` property\n      * the application view receives the application controller as its\n        `controller` property\n      * the application view receives the application template as its\n        `defaultTemplate` property\n       @method buildRegistry\n      @static\n      @param {Application} namespace the application for which to\n        build the registry\n      @return {Ember.Registry} the built registry\n      @private\n    */\n    buildRegistry() {\n      // eslint-disable-line no-unused-vars\n      var registry = this._super(...arguments);\n\n      commonSetupRegistry(registry);\n      (0, _glimmer.setupApplicationRegistry)(registry);\n      return registry;\n    }\n\n  });\n\n  function commonSetupRegistry(registry) {\n    registry.register('router:main', _routing.Router.extend());\n    registry.register('-view-registry:main', {\n      create() {\n        return (0, _utils.dictionary)(null);\n      }\n\n    });\n    registry.register('route:basic', _routing.Route);\n    registry.register('event_dispatcher:main', _views.EventDispatcher);\n    registry.injection('router:main', 'namespace', 'application:main');\n    registry.register('location:auto', _routing.AutoLocation);\n    registry.register('location:hash', _routing.HashLocation);\n    registry.register('location:history', _routing.HistoryLocation);\n    registry.register('location:none', _routing.NoneLocation);\n    registry.register((0, _container.privatize)`-bucket-cache:main`, {\n      create() {\n        return new _routing.BucketCache();\n      }\n\n    });\n    registry.register('service:router', _routing.RouterService);\n    registry.injection('service:router', '_router', 'router:main');\n  }\n\n  function registerLibraries() {\n    if (!librariesRegistered) {\n      librariesRegistered = true;\n\n      if (_deprecatedFeatures.JQUERY_INTEGRATION && _browserEnvironment.hasDOM && !_views.jQueryDisabled) {\n        _metal.libraries.registerCoreLibrary('jQuery', (0, _views.jQuery)().jquery);\n      }\n    }\n  }\n\n  var _default = Application;\n  _exports.default = _default;\n});","define(\"@ember/application/lib/lazy_load\", [\"exports\", \"@ember/-internals/environment\", \"@ember/-internals/browser-environment\"], function (_exports, _environment, _browserEnvironment) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.onLoad = onLoad;\n  _exports.runLoadHooks = runLoadHooks;\n  _exports._loaded = void 0;\n\n  /*globals CustomEvent */\n\n  /**\n    @module @ember/application\n  */\n  var loadHooks = _environment.ENV.EMBER_LOAD_HOOKS || {};\n  var loaded = {};\n  var _loaded = loaded;\n  /**\n    Detects when a specific package of Ember (e.g. 'Application')\n    has fully loaded and is available for extension.\n  \n    The provided `callback` will be called with the `name` passed\n    resolved from a string into the object:\n  \n    ``` javascript\n    import { onLoad } from '@ember/application';\n  \n    onLoad('Ember.Application' function(hbars) {\n      hbars.registerHelper(...);\n    });\n    ```\n  \n    @method onLoad\n    @static\n    @for @ember/application\n    @param name {String} name of hook\n    @param callback {Function} callback to be called\n    @private\n  */\n\n  _exports._loaded = _loaded;\n\n  function onLoad(name, callback) {\n    var object = loaded[name];\n    loadHooks[name] = loadHooks[name] || [];\n    loadHooks[name].push(callback);\n\n    if (object) {\n      callback(object);\n    }\n  }\n  /**\n    Called when an Ember.js package (e.g Application) has finished\n    loading. Triggers any callbacks registered for this event.\n  \n    @method runLoadHooks\n    @static\n    @for @ember/application\n    @param name {String} name of hook\n    @param object {Object} object to pass to callbacks\n    @private\n  */\n\n\n  function runLoadHooks(name, object) {\n    loaded[name] = object;\n\n    if (_browserEnvironment.window && typeof CustomEvent === 'function') {\n      var event = new CustomEvent(name, {\n        detail: object,\n        name\n      });\n\n      _browserEnvironment.window.dispatchEvent(event);\n    }\n\n    if (loadHooks[name]) {\n      loadHooks[name].forEach(callback => callback(object));\n    }\n  }\n});","define(\"@ember/canary-features/index\", [\"exports\", \"@ember/-internals/environment\", \"@ember/polyfills\"], function (_exports, _environment, _polyfills) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.isEnabled = isEnabled;\n  _exports.EMBER_ROUTING_MODEL_ARG = _exports.EMBER_GLIMMER_SET_COMPONENT_TEMPLATE = _exports.EMBER_CUSTOM_COMPONENT_ARG_PROXY = _exports.EMBER_MODULE_UNIFICATION = _exports.EMBER_NAMED_BLOCKS = _exports.EMBER_IMPROVED_INSTRUMENTATION = _exports.EMBER_LIBRARIES_ISREGISTERED = _exports.FEATURES = _exports.DEFAULT_FEATURES = void 0;\n\n  /**\n    Set `EmberENV.FEATURES` in your application's `config/environment.js` file\n    to enable canary features in your application.\n  \n    See the [feature flag guide](https://guides.emberjs.com/release/configuring-ember/feature-flags/)\n    for more details.\n  \n    @module @ember/canary-features\n    @public\n  */\n  var DEFAULT_FEATURES = {\n    EMBER_LIBRARIES_ISREGISTERED: false,\n    EMBER_IMPROVED_INSTRUMENTATION: false,\n    EMBER_NAMED_BLOCKS: false,\n    EMBER_MODULE_UNIFICATION: false,\n    EMBER_CUSTOM_COMPONENT_ARG_PROXY: true,\n    EMBER_GLIMMER_SET_COMPONENT_TEMPLATE: true,\n    EMBER_ROUTING_MODEL_ARG: true\n  };\n  /**\n    The hash of enabled Canary features. Add to this, any canary features\n    before creating your application.\n  \n    @class FEATURES\n    @static\n    @since 1.1.0\n    @public\n  */\n\n  _exports.DEFAULT_FEATURES = DEFAULT_FEATURES;\n  var FEATURES = (0, _polyfills.assign)(DEFAULT_FEATURES, _environment.ENV.FEATURES);\n  /**\n    Determine whether the specified `feature` is enabled. Used by Ember's\n    build tools to exclude experimental features from beta/stable builds.\n  \n    You can define the following configuration options:\n  \n    * `EmberENV.ENABLE_OPTIONAL_FEATURES` - enable any features that have not been explicitly\n      enabled/disabled.\n  \n    @method isEnabled\n    @param {String} feature The feature to check\n    @return {Boolean}\n    @since 1.1.0\n    @public\n  */\n\n  _exports.FEATURES = FEATURES;\n\n  function isEnabled(feature) {\n    var featureValue = FEATURES[feature];\n\n    if (featureValue === true || featureValue === false) {\n      return featureValue;\n    } else if (_environment.ENV.ENABLE_OPTIONAL_FEATURES) {\n      return true;\n    } else {\n      return false;\n    }\n  }\n\n  function featureValue(value) {\n    if (_environment.ENV.ENABLE_OPTIONAL_FEATURES && value === null) {\n      return true;\n    }\n\n    return value;\n  }\n\n  var EMBER_LIBRARIES_ISREGISTERED = featureValue(FEATURES.EMBER_LIBRARIES_ISREGISTERED);\n  _exports.EMBER_LIBRARIES_ISREGISTERED = EMBER_LIBRARIES_ISREGISTERED;\n  var EMBER_IMPROVED_INSTRUMENTATION = featureValue(FEATURES.EMBER_IMPROVED_INSTRUMENTATION);\n  _exports.EMBER_IMPROVED_INSTRUMENTATION = EMBER_IMPROVED_INSTRUMENTATION;\n  var EMBER_NAMED_BLOCKS = featureValue(FEATURES.EMBER_NAMED_BLOCKS);\n  _exports.EMBER_NAMED_BLOCKS = EMBER_NAMED_BLOCKS;\n  var EMBER_MODULE_UNIFICATION = featureValue(FEATURES.EMBER_MODULE_UNIFICATION);\n  _exports.EMBER_MODULE_UNIFICATION = EMBER_MODULE_UNIFICATION;\n  var EMBER_CUSTOM_COMPONENT_ARG_PROXY = featureValue(FEATURES.EMBER_CUSTOM_COMPONENT_ARG_PROXY);\n  _exports.EMBER_CUSTOM_COMPONENT_ARG_PROXY = EMBER_CUSTOM_COMPONENT_ARG_PROXY;\n  var EMBER_GLIMMER_SET_COMPONENT_TEMPLATE = featureValue(FEATURES.EMBER_GLIMMER_SET_COMPONENT_TEMPLATE);\n  _exports.EMBER_GLIMMER_SET_COMPONENT_TEMPLATE = EMBER_GLIMMER_SET_COMPONENT_TEMPLATE;\n  var EMBER_ROUTING_MODEL_ARG = featureValue(FEATURES.EMBER_ROUTING_MODEL_ARG);\n  _exports.EMBER_ROUTING_MODEL_ARG = EMBER_ROUTING_MODEL_ARG;\n});","define(\"@ember/component/index\", [\"exports\", \"@ember/-internals/glimmer\"], function (_exports, _glimmer) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"Component\", {\n    enumerable: true,\n    get: function () {\n      return _glimmer.Component;\n    }\n  });\n});","define(\"@ember/component/template-only\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = templateOnlyComponent;\n  _exports.isTemplateOnlyComponent = isTemplateOnlyComponent;\n  _exports.TemplateOnlyComponent = void 0;\n\n  // This is only exported for types, don't use this class directly\n  class TemplateOnlyComponent {\n    constructor(moduleName = '@ember/component/template-only') {\n      this.moduleName = moduleName;\n    }\n\n    toString() {\n      return this.moduleName;\n    }\n\n  }\n  /**\n    @module @ember/component/template-only\n    @public\n  */\n\n  /**\n    This utility function is used to declare a given component has no backing class. When the rendering engine detects this it\n    is able to perform a number of optimizations. Templates that are associated with `templateOnly()` will be rendered _as is_\n    without adding a wrapping `<div>` (or any of the other element customization behaviors of [@ember/component](/ember/release/classes/Component)).\n    Specifically, this means that the template will be rendered as \"outer HTML\".\n  \n    In general, this method will be used by build time tooling and would not be directly written in an application. However,\n    at times it may be useful to use directly to leverage the \"outer HTML\" semantics mentioned above. For example, if an addon would like\n    to use these semantics for its templates but cannot be certain it will only be consumed by applications that have enabled the\n    `template-only-glimmer-components` optional feature.\n  \n    @example\n  \n    ```js\n    import templateOnly from '@ember/component/template-only';\n  \n    export default templateOnly();\n    ```\n  \n    @public\n    @method templateOnly\n    @param {String} moduleName the module name that the template only component represents, this will be used for debugging purposes\n    @category EMBER_GLIMMER_SET_COMPONENT_TEMPLATE\n  */\n\n\n  _exports.TemplateOnlyComponent = TemplateOnlyComponent;\n\n  function templateOnlyComponent(moduleName) {\n    return new TemplateOnlyComponent(moduleName);\n  }\n\n  function isTemplateOnlyComponent(component) {\n    return component instanceof TemplateOnlyComponent;\n  }\n});","define(\"@ember/controller/index\", [\"exports\", \"@ember/-internals/runtime\", \"@ember/-internals/metal\", \"@ember/controller/lib/controller_mixin\"], function (_exports, _runtime, _metal, _controller_mixin) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.inject = inject;\n  _exports.default = void 0;\n\n  /**\n  @module @ember/controller\n  */\n\n  /**\n    @class Controller\n    @extends EmberObject\n    @uses Ember.ControllerMixin\n    @public\n  */\n  var Controller = _runtime.FrameworkObject.extend(_controller_mixin.default);\n\n  (0, _runtime.setFrameworkClass)(Controller);\n  /**\n    Creates a property that lazily looks up another controller in the container.\n    Can only be used when defining another controller.\n  \n    Example:\n  \n    ```app/controllers/post.js\n    import Controller, {\n      inject as controller\n    } from '@ember/controller';\n  \n    export default class PostController extends Controller {\n      @controller posts;\n    }\n    ```\n  \n    Classic Class Example:\n  \n    ```app/controllers/post.js\n    import Controller, {\n      inject as controller\n    } from '@ember/controller';\n  \n    export default Controller.extend({\n      posts: controller()\n    });\n    ```\n  \n    This example will create a `posts` property on the `post` controller that\n    looks up the `posts` controller in the container, making it easy to reference\n    other controllers.\n  \n    @method inject\n    @static\n    @for @ember/controller\n    @since 1.10.0\n    @param {String} name (optional) name of the controller to inject, defaults to\n           the property's name\n    @return {ComputedDecorator} injection decorator instance\n    @public\n  */\n\n  function inject() {\n    return (0, _metal.inject)('controller', ...arguments);\n  }\n\n  var _default = Controller;\n  _exports.default = _default;\n});","define(\"@ember/controller/lib/controller_mixin\", [\"exports\", \"@ember/-internals/metal\", \"@ember/-internals/runtime\", \"@ember/-internals/utils\"], function (_exports, _metal, _runtime, _utils) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n  var MODEL = (0, _utils.symbol)('MODEL');\n  /**\n  @module ember\n  */\n\n  /**\n    @class ControllerMixin\n    @namespace Ember\n    @uses Ember.ActionHandler\n    @private\n  */\n\n  var _default = _metal.Mixin.create(_runtime.ActionHandler, {\n    /* ducktype as a controller */\n    isController: true,\n\n    /**\n      The object to which actions from the view should be sent.\n       For example, when a Handlebars template uses the `{{action}}` helper,\n      it will attempt to send the action to the view's controller's `target`.\n       By default, the value of the target property is set to the router, and\n      is injected when a controller is instantiated. This injection is applied\n      as part of the application's initialization process. In most cases the\n      `target` property will automatically be set to the logical consumer of\n      actions for the controller.\n       @property target\n      @default null\n      @public\n    */\n    target: null,\n    store: null,\n\n    /**\n      The controller's current model. When retrieving or modifying a controller's\n      model, this property should be used instead of the `content` property.\n       @property model\n      @public\n    */\n    model: (0, _metal.computed)({\n      get() {\n        return this[MODEL];\n      },\n\n      set(key, value) {\n        return this[MODEL] = value;\n      }\n\n    })\n  });\n\n  _exports.default = _default;\n});","define(\"@ember/debug/index\", [\"exports\", \"@ember/-internals/browser-environment\", \"@ember/error\", \"@ember/debug/lib/deprecate\", \"@ember/debug/lib/testing\", \"@ember/debug/lib/warn\", \"@ember/debug/lib/capture-render-tree\"], function (_exports, _browserEnvironment, _error, _deprecate2, _testing, _warn2, _captureRenderTree) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"registerDeprecationHandler\", {\n    enumerable: true,\n    get: function () {\n      return _deprecate2.registerHandler;\n    }\n  });\n  Object.defineProperty(_exports, \"isTesting\", {\n    enumerable: true,\n    get: function () {\n      return _testing.isTesting;\n    }\n  });\n  Object.defineProperty(_exports, \"setTesting\", {\n    enumerable: true,\n    get: function () {\n      return _testing.setTesting;\n    }\n  });\n  Object.defineProperty(_exports, \"registerWarnHandler\", {\n    enumerable: true,\n    get: function () {\n      return _warn2.registerHandler;\n    }\n  });\n  Object.defineProperty(_exports, \"captureRenderTree\", {\n    enumerable: true,\n    get: function () {\n      return _captureRenderTree.default;\n    }\n  });\n  _exports._warnIfUsingStrippedFeatureFlags = _exports.getDebugFunction = _exports.setDebugFunction = _exports.deprecateFunc = _exports.runInDebug = _exports.debugFreeze = _exports.debugSeal = _exports.deprecate = _exports.debug = _exports.warn = _exports.info = _exports.assert = void 0;\n\n  // These are the default production build versions:\n  var noop = () => {};\n\n  var assert = noop;\n  _exports.assert = assert;\n  var info = noop;\n  _exports.info = info;\n  var warn = noop;\n  _exports.warn = warn;\n  var debug = noop;\n  _exports.debug = debug;\n  var deprecate = noop;\n  _exports.deprecate = deprecate;\n  var debugSeal = noop;\n  _exports.debugSeal = debugSeal;\n  var debugFreeze = noop;\n  _exports.debugFreeze = debugFreeze;\n  var runInDebug = noop;\n  _exports.runInDebug = runInDebug;\n  var setDebugFunction = noop;\n  _exports.setDebugFunction = setDebugFunction;\n  var getDebugFunction = noop;\n  _exports.getDebugFunction = getDebugFunction;\n\n  var deprecateFunc = function () {\n    return arguments[arguments.length - 1];\n  };\n\n  _exports.deprecateFunc = deprecateFunc;\n\n  if (true\n  /* DEBUG */\n  ) {\n    _exports.setDebugFunction = setDebugFunction = function (type, callback) {\n      switch (type) {\n        case 'assert':\n          return _exports.assert = assert = callback;\n\n        case 'info':\n          return _exports.info = info = callback;\n\n        case 'warn':\n          return _exports.warn = warn = callback;\n\n        case 'debug':\n          return _exports.debug = debug = callback;\n\n        case 'deprecate':\n          return _exports.deprecate = deprecate = callback;\n\n        case 'debugSeal':\n          return _exports.debugSeal = debugSeal = callback;\n\n        case 'debugFreeze':\n          return _exports.debugFreeze = debugFreeze = callback;\n\n        case 'runInDebug':\n          return _exports.runInDebug = runInDebug = callback;\n\n        case 'deprecateFunc':\n          return _exports.deprecateFunc = deprecateFunc = callback;\n      }\n    };\n\n    _exports.getDebugFunction = getDebugFunction = function (type) {\n      switch (type) {\n        case 'assert':\n          return assert;\n\n        case 'info':\n          return info;\n\n        case 'warn':\n          return warn;\n\n        case 'debug':\n          return debug;\n\n        case 'deprecate':\n          return deprecate;\n\n        case 'debugSeal':\n          return debugSeal;\n\n        case 'debugFreeze':\n          return debugFreeze;\n\n        case 'runInDebug':\n          return runInDebug;\n\n        case 'deprecateFunc':\n          return deprecateFunc;\n      }\n    };\n  }\n  /**\n  @module @ember/debug\n  */\n\n\n  if (true\n  /* DEBUG */\n  ) {\n    /**\n      Verify that a certain expectation is met, or throw a exception otherwise.\n         This is useful for communicating assumptions in the code to other human\n      readers as well as catching bugs that accidentally violates these\n      expectations.\n         Assertions are removed from production builds, so they can be freely added\n      for documentation and debugging purposes without worries of incuring any\n      performance penalty. However, because of that, they should not be used for\n      checks that could reasonably fail during normal usage. Furthermore, care\n      should be taken to avoid accidentally relying on side-effects produced from\n      evaluating the condition itself, since the code will not run in production.\n         ```javascript\n      import { assert } from '@ember/debug';\n         // Test for truthiness\n      assert('Must pass a string', typeof str === 'string');\n         // Fail unconditionally\n      assert('This code path should never be run');\n      ```\n         @method assert\n      @static\n      @for @ember/debug\n      @param {String} description Describes the expectation. This will become the\n        text of the Error thrown if the assertion fails.\n      @param {any} condition Must be truthy for the assertion to pass. If\n        falsy, an exception will be thrown.\n      @public\n      @since 1.0.0\n    */\n    setDebugFunction('assert', function assert(desc, test) {\n      if (!test) {\n        throw new _error.default(`Assertion Failed: ${desc}`);\n      }\n    });\n    /**\n      Display a debug notice.\n         Calls to this function are removed from production builds, so they can be\n      freely added for documentation and debugging purposes without worries of\n      incuring any performance penalty.\n         ```javascript\n      import { debug } from '@ember/debug';\n         debug('I\\'m a debug notice!');\n      ```\n         @method debug\n      @for @ember/debug\n      @static\n      @param {String} message A debug message to display.\n      @public\n    */\n\n    setDebugFunction('debug', function debug(message) {\n      /* eslint-disable no-console */\n      if (console.debug) {\n        console.debug(`DEBUG: ${message}`);\n      } else {\n        console.log(`DEBUG: ${message}`);\n      }\n      /* eslint-ensable no-console */\n\n    });\n    /**\n      Display an info notice.\n         Calls to this function are removed from production builds, so they can be\n      freely added for documentation and debugging purposes without worries of\n      incuring any performance penalty.\n         @method info\n      @private\n    */\n\n    setDebugFunction('info', function info() {\n      console.info(...arguments);\n      /* eslint-disable-line no-console */\n    });\n    /**\n     @module @ember/debug\n     @public\n    */\n\n    /**\n      Alias an old, deprecated method with its new counterpart.\n         Display a deprecation warning with the provided message and a stack trace\n      (Chrome and Firefox only) when the assigned method is called.\n         Calls to this function are removed from production builds, so they can be\n      freely added for documentation and debugging purposes without worries of\n      incuring any performance penalty.\n         ```javascript\n      import { deprecateFunc } from '@ember/debug';\n         Ember.oldMethod = deprecateFunc('Please use the new, updated method', options, Ember.newMethod);\n      ```\n         @method deprecateFunc\n      @static\n      @for @ember/debug\n      @param {String} message A description of the deprecation.\n      @param {Object} [options] The options object for `deprecate`.\n      @param {Function} func The new function called to replace its deprecated counterpart.\n      @return {Function} A new function that wraps the original function with a deprecation warning\n      @private\n    */\n\n    setDebugFunction('deprecateFunc', function deprecateFunc(...args) {\n      if (args.length === 3) {\n        var [message, options, func] = args;\n        return function (...args) {\n          deprecate(message, false, options);\n          return func.apply(this, args);\n        };\n      } else {\n        var [_message, _func] = args;\n        return function () {\n          deprecate(_message);\n          return _func.apply(this, arguments);\n        };\n      }\n    });\n    /**\n     @module @ember/debug\n     @public\n    */\n\n    /**\n      Run a function meant for debugging.\n         Calls to this function are removed from production builds, so they can be\n      freely added for documentation and debugging purposes without worries of\n      incuring any performance penalty.\n         ```javascript\n      import Component from '@ember/component';\n      import { runInDebug } from '@ember/debug';\n         runInDebug(() => {\n        Component.reopen({\n          didInsertElement() {\n            console.log(\"I'm happy\");\n          }\n        });\n      });\n      ```\n         @method runInDebug\n      @for @ember/debug\n      @static\n      @param {Function} func The function to be executed.\n      @since 1.5.0\n      @public\n    */\n\n    setDebugFunction('runInDebug', function runInDebug(func) {\n      func();\n    });\n    setDebugFunction('debugSeal', function debugSeal(obj) {\n      Object.seal(obj);\n    });\n    setDebugFunction('debugFreeze', function debugFreeze(obj) {\n      // re-freezing an already frozen object introduces a significant\n      // performance penalty on Chrome (tested through 59).\n      //\n      // See: https://bugs.chromium.org/p/v8/issues/detail?id=6450\n      if (!Object.isFrozen(obj)) {\n        Object.freeze(obj);\n      }\n    });\n    setDebugFunction('deprecate', _deprecate2.default);\n    setDebugFunction('warn', _warn2.default);\n  }\n\n  var _warnIfUsingStrippedFeatureFlags;\n\n  _exports._warnIfUsingStrippedFeatureFlags = _warnIfUsingStrippedFeatureFlags;\n\n  if (true\n  /* DEBUG */\n  && !(0, _testing.isTesting)()) {\n    if (typeof window !== 'undefined' && (_browserEnvironment.isFirefox || _browserEnvironment.isChrome) && window.addEventListener) {\n      window.addEventListener('load', () => {\n        if (document.documentElement && document.documentElement.dataset && !document.documentElement.dataset.emberExtension) {\n          var downloadURL;\n\n          if (_browserEnvironment.isChrome) {\n            downloadURL = 'https://chrome.google.com/webstore/detail/ember-inspector/bmdblncegkenkacieihfhpjfppoconhi';\n          } else if (_browserEnvironment.isFirefox) {\n            downloadURL = 'https://addons.mozilla.org/en-US/firefox/addon/ember-inspector/';\n          }\n\n          debug(`For more advanced debugging, install the Ember Inspector from ${downloadURL}`);\n        }\n      }, false);\n    }\n  }\n});","define(\"@ember/debug/lib/capture-render-tree\", [\"exports\", \"@glimmer/util\"], function (_exports, _util) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = captureRenderTree;\n\n  /**\n    @module @ember/debug\n  */\n\n  /**\n    Ember Inspector calls this function to capture the current render tree.\n  \n    In production mode, this requires turning on `ENV._DEBUG_RENDER_TREE`\n    before loading Ember.\n  \n    @private\n    @static\n    @method captureRenderTree\n    @for @ember/debug\n    @param app {ApplicationInstance} An `ApplicationInstance`.\n    @since 3.14.0\n  */\n  function captureRenderTree(app) {\n    var env = (0, _util.expect)(app.lookup('-environment:main'), 'BUG: owner is missing -environment:main');\n    var rendererType = env.isInteractive ? 'renderer:-dom' : 'renderer:-inert';\n    var renderer = (0, _util.expect)(app.lookup(rendererType), `BUG: owner is missing ${rendererType}`);\n    return renderer.debugRenderTree.capture();\n  }\n});","define(\"@ember/debug/lib/deprecate\", [\"exports\", \"@ember/-internals/environment\", \"@ember/debug/index\", \"@ember/debug/lib/handlers\"], function (_exports, _environment, _index, _handlers) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.missingOptionsUntilDeprecation = _exports.missingOptionsIdDeprecation = _exports.missingOptionsDeprecation = _exports.registerHandler = _exports.default = void 0;\n\n  /**\n   @module @ember/debug\n   @public\n  */\n\n  /**\n    Allows for runtime registration of handler functions that override the default deprecation behavior.\n    Deprecations are invoked by calls to [@ember/debug/deprecate](/ember/release/classes/@ember%2Fdebug/methods/deprecate?anchor=deprecate).\n    The following example demonstrates its usage by registering a handler that throws an error if the\n    message contains the word \"should\", otherwise defers to the default handler.\n  \n    ```javascript\n    import { registerDeprecationHandler } from '@ember/debug';\n  \n    registerDeprecationHandler((message, options, next) => {\n      if (message.indexOf('should') !== -1) {\n        throw new Error(`Deprecation message with should: ${message}`);\n      } else {\n        // defer to whatever handler was registered before this one\n        next(message, options);\n      }\n    });\n    ```\n  \n    The handler function takes the following arguments:\n  \n    <ul>\n      <li> <code>message</code> - The message received from the deprecation call.</li>\n      <li> <code>options</code> - An object passed in with the deprecation call containing additional information including:</li>\n        <ul>\n          <li> <code>id</code> - An id of the deprecation in the form of <code>package-name.specific-deprecation</code>.</li>\n          <li> <code>until</code> - The Ember version number the feature and deprecation will be removed in.</li>\n        </ul>\n      <li> <code>next</code> - A function that calls into the previously registered handler.</li>\n    </ul>\n  \n    @public\n    @static\n    @method registerDeprecationHandler\n    @for @ember/debug\n    @param handler {Function} A function to handle deprecation calls.\n    @since 2.1.0\n  */\n  var registerHandler = () => {};\n\n  _exports.registerHandler = registerHandler;\n  var missingOptionsDeprecation;\n  _exports.missingOptionsDeprecation = missingOptionsDeprecation;\n  var missingOptionsIdDeprecation;\n  _exports.missingOptionsIdDeprecation = missingOptionsIdDeprecation;\n  var missingOptionsUntilDeprecation;\n  _exports.missingOptionsUntilDeprecation = missingOptionsUntilDeprecation;\n\n  var deprecate = () => {};\n\n  if (true\n  /* DEBUG */\n  ) {\n    _exports.registerHandler = registerHandler = function registerHandler(handler) {\n      (0, _handlers.registerHandler)('deprecate', handler);\n    };\n\n    var formatMessage = function formatMessage(_message, options) {\n      var message = _message;\n\n      if (options && options.id) {\n        message = message + ` [deprecation id: ${options.id}]`;\n      }\n\n      if (options && options.url) {\n        message += ` See ${options.url} for more details.`;\n      }\n\n      return message;\n    };\n\n    registerHandler(function logDeprecationToConsole(message, options) {\n      var updatedMessage = formatMessage(message, options);\n      console.warn(`DEPRECATION: ${updatedMessage}`); // eslint-disable-line no-console\n    });\n    var captureErrorForStack;\n\n    if (new Error().stack) {\n      captureErrorForStack = () => new Error();\n    } else {\n      captureErrorForStack = () => {\n        try {\n          __fail__.fail();\n        } catch (e) {\n          return e;\n        }\n      };\n    }\n\n    registerHandler(function logDeprecationStackTrace(message, options, next) {\n      if (_environment.ENV.LOG_STACKTRACE_ON_DEPRECATION) {\n        var stackStr = '';\n        var error = captureErrorForStack();\n        var stack;\n\n        if (error.stack) {\n          if (error['arguments']) {\n            // Chrome\n            stack = error.stack.replace(/^\\s+at\\s+/gm, '').replace(/^([^\\(]+?)([\\n$])/gm, '{anonymous}($1)$2').replace(/^Object.<anonymous>\\s*\\(([^\\)]+)\\)/gm, '{anonymous}($1)').split('\\n');\n            stack.shift();\n          } else {\n            // Firefox\n            stack = error.stack.replace(/(?:\\n@:0)?\\s+$/m, '').replace(/^\\(/gm, '{anonymous}(').split('\\n');\n          }\n\n          stackStr = `\\n    ${stack.slice(2).join('\\n    ')}`;\n        }\n\n        var updatedMessage = formatMessage(message, options);\n        console.warn(`DEPRECATION: ${updatedMessage}${stackStr}`); // eslint-disable-line no-console\n      } else {\n        next(message, options);\n      }\n    });\n    registerHandler(function raiseOnDeprecation(message, options, next) {\n      if (_environment.ENV.RAISE_ON_DEPRECATION) {\n        var updatedMessage = formatMessage(message);\n        throw new Error(updatedMessage);\n      } else {\n        next(message, options);\n      }\n    });\n    _exports.missingOptionsDeprecation = missingOptionsDeprecation = 'When calling `deprecate` you ' + 'must provide an `options` hash as the third parameter.  ' + '`options` should include `id` and `until` properties.';\n    _exports.missingOptionsIdDeprecation = missingOptionsIdDeprecation = 'When calling `deprecate` you must provide `id` in options.';\n    _exports.missingOptionsUntilDeprecation = missingOptionsUntilDeprecation = 'When calling `deprecate` you must provide `until` in options.';\n    /**\n     @module @ember/debug\n     @public\n     */\n\n    /**\n      Display a deprecation warning with the provided message and a stack trace\n      (Chrome and Firefox only).\n         * In a production build, this method is defined as an empty function (NOP).\n      Uses of this method in Ember itself are stripped from the ember.prod.js build.\n         @method deprecate\n      @for @ember/debug\n      @param {String} message A description of the deprecation.\n      @param {Boolean} test A boolean. If falsy, the deprecation will be displayed.\n      @param {Object} options\n      @param {String} options.id A unique id for this deprecation. The id can be\n        used by Ember debugging tools to change the behavior (raise, log or silence)\n        for that specific deprecation. The id should be namespaced by dots, e.g.\n        \"view.helper.select\".\n      @param {string} options.until The version of Ember when this deprecation\n        warning will be removed.\n      @param {String} [options.url] An optional url to the transition guide on the\n        emberjs.com website.\n      @static\n      @public\n      @since 1.0.0\n    */\n\n    deprecate = function deprecate(message, test, options) {\n      (0, _index.assert)(missingOptionsDeprecation, Boolean(options && (options.id || options.until)));\n      (0, _index.assert)(missingOptionsIdDeprecation, Boolean(options.id));\n      (0, _index.assert)(missingOptionsUntilDeprecation, Boolean(options.until));\n      (0, _handlers.invoke)('deprecate', message, test, options);\n    };\n  }\n\n  var _default = deprecate;\n  _exports.default = _default;\n});","define(\"@ember/debug/lib/handlers\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.invoke = _exports.registerHandler = _exports.HANDLERS = void 0;\n  var HANDLERS = {};\n  _exports.HANDLERS = HANDLERS;\n\n  var registerHandler = () => {};\n\n  _exports.registerHandler = registerHandler;\n\n  var invoke = () => {};\n\n  _exports.invoke = invoke;\n\n  if (true\n  /* DEBUG */\n  ) {\n    _exports.registerHandler = registerHandler = function registerHandler(type, callback) {\n      var nextHandler = HANDLERS[type] || (() => {});\n\n      HANDLERS[type] = (message, options) => {\n        callback(message, options, nextHandler);\n      };\n    };\n\n    _exports.invoke = invoke = function invoke(type, message, test, options) {\n      if (test) {\n        return;\n      }\n\n      var handlerForType = HANDLERS[type];\n\n      if (handlerForType) {\n        handlerForType(message, options);\n      }\n    };\n  }\n});","define(\"@ember/debug/lib/testing\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.isTesting = isTesting;\n  _exports.setTesting = setTesting;\n  var testing = false;\n\n  function isTesting() {\n    return testing;\n  }\n\n  function setTesting(value) {\n    testing = Boolean(value);\n  }\n});","define(\"@ember/debug/lib/warn\", [\"exports\", \"@ember/debug/index\", \"@ember/debug/lib/handlers\"], function (_exports, _index, _handlers) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.missingOptionsDeprecation = _exports.missingOptionsIdDeprecation = _exports.registerHandler = _exports.default = void 0;\n\n  var registerHandler = () => {};\n\n  _exports.registerHandler = registerHandler;\n\n  var warn = () => {};\n\n  var missingOptionsDeprecation;\n  _exports.missingOptionsDeprecation = missingOptionsDeprecation;\n  var missingOptionsIdDeprecation;\n  /**\n  @module @ember/debug\n  */\n\n  _exports.missingOptionsIdDeprecation = missingOptionsIdDeprecation;\n\n  if (true\n  /* DEBUG */\n  ) {\n    /**\n      Allows for runtime registration of handler functions that override the default warning behavior.\n      Warnings are invoked by calls made to [@ember/debug/warn](/ember/release/classes/@ember%2Fdebug/methods/warn?anchor=warn).\n      The following example demonstrates its usage by registering a handler that does nothing overriding Ember's\n      default warning behavior.\n         ```javascript\n      import { registerWarnHandler } from '@ember/debug';\n         // next is not called, so no warnings get the default behavior\n      registerWarnHandler(() => {});\n      ```\n         The handler function takes the following arguments:\n         <ul>\n        <li> <code>message</code> - The message received from the warn call. </li>\n        <li> <code>options</code> - An object passed in with the warn call containing additional information including:</li>\n          <ul>\n            <li> <code>id</code> - An id of the warning in the form of <code>package-name.specific-warning</code>.</li>\n          </ul>\n        <li> <code>next</code> - A function that calls into the previously registered handler.</li>\n      </ul>\n         @public\n      @static\n      @method registerWarnHandler\n      @for @ember/debug\n      @param handler {Function} A function to handle warnings.\n      @since 2.1.0\n    */\n    _exports.registerHandler = registerHandler = function registerHandler(handler) {\n      (0, _handlers.registerHandler)('warn', handler);\n    };\n\n    registerHandler(function logWarning(message) {\n      /* eslint-disable no-console */\n      console.warn(`WARNING: ${message}`);\n      /* eslint-enable no-console */\n    });\n    _exports.missingOptionsDeprecation = missingOptionsDeprecation = 'When calling `warn` you ' + 'must provide an `options` hash as the third parameter.  ' + '`options` should include an `id` property.';\n    _exports.missingOptionsIdDeprecation = missingOptionsIdDeprecation = 'When calling `warn` you must provide `id` in options.';\n    /**\n      Display a warning with the provided message.\n         * In a production build, this method is defined as an empty function (NOP).\n      Uses of this method in Ember itself are stripped from the ember.prod.js build.\n         ```javascript\n      import { warn } from '@ember/debug';\n      import tomsterCount from './tomster-counter'; // a module in my project\n         // Log a warning if we have more than 3 tomsters\n      warn('Too many tomsters!', tomsterCount <= 3, {\n        id: 'ember-debug.too-many-tomsters'\n      });\n      ```\n         @method warn\n      @for @ember/debug\n      @static\n      @param {String} message A warning to display.\n      @param {Boolean} test An optional boolean. If falsy, the warning\n        will be displayed.\n      @param {Object} options An object that can be used to pass a unique\n        `id` for this warning.  The `id` can be used by Ember debugging tools\n        to change the behavior (raise, log, or silence) for that specific warning.\n        The `id` should be namespaced by dots, e.g. \"ember-debug.feature-flag-with-features-stripped\"\n      @public\n      @since 1.0.0\n    */\n\n    warn = function warn(message, test, options) {\n      if (arguments.length === 2 && typeof test === 'object') {\n        options = test;\n        test = false;\n      }\n\n      (0, _index.assert)(missingOptionsDeprecation, Boolean(options));\n      (0, _index.assert)(missingOptionsIdDeprecation, Boolean(options && options.id));\n      (0, _handlers.invoke)('warn', message, test, options);\n    };\n  }\n\n  var _default = warn;\n  _exports.default = _default;\n});","define(\"@ember/deprecated-features/index\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.GLOBALS_RESOLVER = _exports.PARTIALS = _exports.EMBER_COMPONENT_IS_VISIBLE = _exports.MOUSE_ENTER_LEAVE_MOVE_EVENTS = _exports.FUNCTION_PROTOTYPE_EXTENSIONS = _exports.APP_CTRL_ROUTER_PROPS = _exports.ALIAS_METHOD = _exports.JQUERY_INTEGRATION = _exports.COMPONENT_MANAGER_STRING_LOOKUP = _exports.ROUTER_EVENTS = _exports.MERGE = _exports.LOGGER = _exports.EMBER_EXTEND_PROTOTYPES = _exports.SEND_ACTION = void 0;\n\n  /* eslint-disable no-implicit-coercion */\n  // These versions should be the version that the deprecation was _introduced_,\n  // not the version that the feature will be removed.\n  var SEND_ACTION = !!'3.4.0';\n  _exports.SEND_ACTION = SEND_ACTION;\n  var EMBER_EXTEND_PROTOTYPES = !!'3.2.0-beta.5';\n  _exports.EMBER_EXTEND_PROTOTYPES = EMBER_EXTEND_PROTOTYPES;\n  var LOGGER = !!'3.2.0-beta.1';\n  _exports.LOGGER = LOGGER;\n  var MERGE = !!'3.6.0-beta.1';\n  _exports.MERGE = MERGE;\n  var ROUTER_EVENTS = !!'4.0.0';\n  _exports.ROUTER_EVENTS = ROUTER_EVENTS;\n  var COMPONENT_MANAGER_STRING_LOOKUP = !!'3.8.0';\n  _exports.COMPONENT_MANAGER_STRING_LOOKUP = COMPONENT_MANAGER_STRING_LOOKUP;\n  var JQUERY_INTEGRATION = !!'3.9.0';\n  _exports.JQUERY_INTEGRATION = JQUERY_INTEGRATION;\n  var ALIAS_METHOD = !!'3.9.0';\n  _exports.ALIAS_METHOD = ALIAS_METHOD;\n  var APP_CTRL_ROUTER_PROPS = !!'3.10.0-beta.1';\n  _exports.APP_CTRL_ROUTER_PROPS = APP_CTRL_ROUTER_PROPS;\n  var FUNCTION_PROTOTYPE_EXTENSIONS = !!'3.11.0-beta.1';\n  _exports.FUNCTION_PROTOTYPE_EXTENSIONS = FUNCTION_PROTOTYPE_EXTENSIONS;\n  var MOUSE_ENTER_LEAVE_MOVE_EVENTS = !!'3.13.0-beta.1';\n  _exports.MOUSE_ENTER_LEAVE_MOVE_EVENTS = MOUSE_ENTER_LEAVE_MOVE_EVENTS;\n  var EMBER_COMPONENT_IS_VISIBLE = !!'3.15.0-beta.1';\n  _exports.EMBER_COMPONENT_IS_VISIBLE = EMBER_COMPONENT_IS_VISIBLE;\n  var PARTIALS = !!'3.15.0-beta.1';\n  _exports.PARTIALS = PARTIALS;\n  var GLOBALS_RESOLVER = !!'3.16.0-beta.1';\n  _exports.GLOBALS_RESOLVER = GLOBALS_RESOLVER;\n});","define(\"@ember/engine/index\", [\"exports\", \"@ember/engine/lib/engine-parent\", \"@ember/-internals/utils\", \"@ember/controller\", \"@ember/-internals/runtime\", \"@ember/-internals/container\", \"dag-map\", \"@ember/debug\", \"@ember/-internals/metal\", \"@ember/application/globals-resolver\", \"@ember/engine/instance\", \"@ember/-internals/routing\", \"@ember/-internals/extension-support\", \"@ember/-internals/views\", \"@ember/-internals/glimmer\"], function (_exports, _engineParent, _utils, _controller, _runtime, _container, _dagMap, _debug, _metal, _globalsResolver, _instance, _routing, _extensionSupport, _views, _glimmer) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"getEngineParent\", {\n    enumerable: true,\n    get: function () {\n      return _engineParent.getEngineParent;\n    }\n  });\n  Object.defineProperty(_exports, \"setEngineParent\", {\n    enumerable: true,\n    get: function () {\n      return _engineParent.setEngineParent;\n    }\n  });\n  _exports.default = void 0;\n\n  function props(obj) {\n    var properties = [];\n\n    for (var key in obj) {\n      properties.push(key);\n    }\n\n    return properties;\n  }\n  /**\n  @module @ember/engine\n  */\n\n  /**\n    The `Engine` class contains core functionality for both applications and\n    engines.\n  \n    Each engine manages a registry that's used for dependency injection and\n    exposed through `RegistryProxy`.\n  \n    Engines also manage initializers and instance initializers.\n  \n    Engines can spawn `EngineInstance` instances via `buildInstance()`.\n  \n    @class Engine\n    @extends Ember.Namespace\n    @uses RegistryProxy\n    @public\n  */\n\n\n  var Engine = _runtime.Namespace.extend(_runtime.RegistryProxyMixin, {\n    init() {\n      this._super(...arguments);\n\n      this.buildRegistry();\n    },\n\n    /**\n      A private flag indicating whether an engine's initializers have run yet.\n       @private\n      @property _initializersRan\n    */\n    _initializersRan: false,\n\n    /**\n      Ensure that initializers are run once, and only once, per engine.\n       @private\n      @method ensureInitializers\n    */\n    ensureInitializers() {\n      if (!this._initializersRan) {\n        this.runInitializers();\n        this._initializersRan = true;\n      }\n    },\n\n    /**\n      Create an EngineInstance for this engine.\n       @public\n      @method buildInstance\n      @return {EngineInstance} the engine instance\n    */\n    buildInstance(options = {}) {\n      this.ensureInitializers();\n      options.base = this;\n      return _instance.default.create(options);\n    },\n\n    /**\n      Build and configure the registry for the current engine.\n       @private\n      @method buildRegistry\n      @return {Ember.Registry} the configured registry\n    */\n    buildRegistry() {\n      var registry = this.__registry__ = this.constructor.buildRegistry(this);\n      return registry;\n    },\n\n    /**\n      @private\n      @method initializer\n    */\n    initializer(options) {\n      this.constructor.initializer(options);\n    },\n\n    /**\n      @private\n      @method instanceInitializer\n    */\n    instanceInitializer(options) {\n      this.constructor.instanceInitializer(options);\n    },\n\n    /**\n      @private\n      @method runInitializers\n    */\n    runInitializers() {\n      this._runInitializer('initializers', (name, initializer) => {\n        (true && !(Boolean(initializer)) && (0, _debug.assert)(`No application initializer named '${name}'`, Boolean(initializer)));\n        initializer.initialize(this);\n      });\n    },\n\n    /**\n      @private\n      @since 1.12.0\n      @method runInstanceInitializers\n    */\n    runInstanceInitializers(instance) {\n      this._runInitializer('instanceInitializers', (name, initializer) => {\n        (true && !(Boolean(initializer)) && (0, _debug.assert)(`No instance initializer named '${name}'`, Boolean(initializer)));\n        initializer.initialize(instance);\n      });\n    },\n\n    _runInitializer(bucketName, cb) {\n      var initializersByName = (0, _metal.get)(this.constructor, bucketName);\n      var initializers = props(initializersByName);\n      var graph = new _dagMap.default();\n      var initializer;\n\n      for (var i = 0; i < initializers.length; i++) {\n        initializer = initializersByName[initializers[i]];\n        graph.add(initializer.name, initializer, initializer.before, initializer.after);\n      }\n\n      graph.topsort(cb);\n    }\n\n  });\n\n  Engine.reopenClass({\n    initializers: Object.create(null),\n    instanceInitializers: Object.create(null),\n\n    /**\n      The goal of initializers should be to register dependencies and injections.\n      This phase runs once. Because these initializers may load code, they are\n      allowed to defer application readiness and advance it. If you need to access\n      the container or store you should use an InstanceInitializer that will be run\n      after all initializers and therefore after all code is loaded and the app is\n      ready.\n       Initializer receives an object which has the following attributes:\n      `name`, `before`, `after`, `initialize`. The only required attribute is\n      `initialize`, all others are optional.\n       * `name` allows you to specify under which name the initializer is registered.\n      This must be a unique name, as trying to register two initializers with the\n      same name will result in an error.\n       ```app/initializer/named-initializer.js\n      import { debug } from '@ember/debug';\n       export function initialize() {\n        debug('Running namedInitializer!');\n      }\n       export default {\n        name: 'named-initializer',\n        initialize\n      };\n      ```\n       * `before` and `after` are used to ensure that this initializer is ran prior\n      or after the one identified by the value. This value can be a single string\n      or an array of strings, referencing the `name` of other initializers.\n       An example of ordering initializers, we create an initializer named `first`:\n       ```app/initializer/first.js\n      import { debug } from '@ember/debug';\n       export function initialize() {\n        debug('First initializer!');\n      }\n       export default {\n        name: 'first',\n        initialize\n      };\n      ```\n       ```bash\n      // DEBUG: First initializer!\n      ```\n       We add another initializer named `second`, specifying that it should run\n      after the initializer named `first`:\n       ```app/initializer/second.js\n      import { debug } from '@ember/debug';\n       export function initialize() {\n        debug('Second initializer!');\n      }\n       export default {\n        name: 'second',\n        after: 'first',\n        initialize\n      };\n      ```\n       ```\n      // DEBUG: First initializer!\n      // DEBUG: Second initializer!\n      ```\n       Afterwards we add a further initializer named `pre`, this time specifying\n      that it should run before the initializer named `first`:\n       ```app/initializer/pre.js\n      import { debug } from '@ember/debug';\n       export function initialize() {\n        debug('Pre initializer!');\n      }\n       export default {\n        name: 'pre',\n        before: 'first',\n        initialize\n      };\n      ```\n       ```bash\n      // DEBUG: Pre initializer!\n      // DEBUG: First initializer!\n      // DEBUG: Second initializer!\n      ```\n       Finally we add an initializer named `post`, specifying it should run after\n      both the `first` and the `second` initializers:\n       ```app/initializer/post.js\n      import { debug } from '@ember/debug';\n       export function initialize() {\n        debug('Post initializer!');\n      }\n       export default {\n        name: 'post',\n        after: ['first', 'second'],\n        initialize\n      };\n      ```\n       ```bash\n      // DEBUG: Pre initializer!\n      // DEBUG: First initializer!\n      // DEBUG: Second initializer!\n      // DEBUG: Post initializer!\n      ```\n       * `initialize` is a callback function that receives one argument,\n        `application`, on which you can operate.\n       Example of using `application` to register an adapter:\n       ```app/initializer/api-adapter.js\n      import ApiAdapter from '../utils/api-adapter';\n       export function initialize(application) {\n        application.register('api-adapter:main', ApiAdapter);\n      }\n       export default {\n        name: 'post',\n        after: ['first', 'second'],\n        initialize\n      };\n      ```\n       @method initializer\n      @param initializer {Object}\n      @public\n    */\n    initializer: buildInitializerMethod('initializers', 'initializer'),\n\n    /**\n      Instance initializers run after all initializers have run. Because\n      instance initializers run after the app is fully set up. We have access\n      to the store, container, and other items. However, these initializers run\n      after code has loaded and are not allowed to defer readiness.\n       Instance initializer receives an object which has the following attributes:\n      `name`, `before`, `after`, `initialize`. The only required attribute is\n      `initialize`, all others are optional.\n       * `name` allows you to specify under which name the instanceInitializer is\n      registered. This must be a unique name, as trying to register two\n      instanceInitializer with the same name will result in an error.\n       ```app/initializer/named-instance-initializer.js\n      import { debug } from '@ember/debug';\n       export function initialize() {\n        debug('Running named-instance-initializer!');\n      }\n       export default {\n        name: 'named-instance-initializer',\n        initialize\n      };\n      ```\n       * `before` and `after` are used to ensure that this initializer is ran prior\n      or after the one identified by the value. This value can be a single string\n      or an array of strings, referencing the `name` of other initializers.\n       * See Application.initializer for discussion on the usage of before\n      and after.\n       Example instanceInitializer to preload data into the store.\n       ```app/initializer/preload-data.js\n      import $ from 'jquery';\n       export function initialize(application) {\n          var userConfig, userConfigEncoded, store;\n          // We have a HTML escaped JSON representation of the user's basic\n          // configuration generated server side and stored in the DOM of the main\n          // index.html file. This allows the app to have access to a set of data\n          // without making any additional remote calls. Good for basic data that is\n          // needed for immediate rendering of the page. Keep in mind, this data,\n          // like all local models and data can be manipulated by the user, so it\n          // should not be relied upon for security or authorization.\n           // Grab the encoded data from the meta tag\n          userConfigEncoded = $('head meta[name=app-user-config]').attr('content');\n           // Unescape the text, then parse the resulting JSON into a real object\n          userConfig = JSON.parse(unescape(userConfigEncoded));\n           // Lookup the store\n          store = application.lookup('service:store');\n           // Push the encoded JSON into the store\n          store.pushPayload(userConfig);\n      }\n       export default {\n        name: 'named-instance-initializer',\n        initialize\n      };\n      ```\n       @method instanceInitializer\n      @param instanceInitializer\n      @public\n    */\n    instanceInitializer: buildInitializerMethod('instanceInitializers', 'instance initializer'),\n\n    /**\n      This creates a registry with the default Ember naming conventions.\n       It also configures the registry:\n       * registered views are created every time they are looked up (they are\n        not singletons)\n      * registered templates are not factories; the registered value is\n        returned directly.\n      * the router receives the application as its `namespace` property\n      * all controllers receive the router as their `target` and `controllers`\n        properties\n      * all controllers receive the application as their `namespace` property\n      * the application view receives the application controller as its\n        `controller` property\n      * the application view receives the application template as its\n        `defaultTemplate` property\n       @method buildRegistry\n      @static\n      @param {Application} namespace the application for which to\n        build the registry\n      @return {Ember.Registry} the built registry\n      @private\n    */\n    buildRegistry(namespace) {\n      var registry = new _container.Registry({\n        resolver: resolverFor(namespace)\n      });\n      registry.set = _metal.set;\n      registry.register('application:main', namespace, {\n        instantiate: false\n      });\n      commonSetupRegistry(registry);\n      (0, _glimmer.setupEngineRegistry)(registry);\n      return registry;\n    },\n\n    /**\n      Set this to provide an alternate class to `DefaultResolver`\n       @deprecated Use 'Resolver' instead\n      @property resolver\n      @public\n    */\n    resolver: null,\n\n    /**\n      Set this to provide an alternate class to `DefaultResolver`\n       @property resolver\n      @public\n    */\n    Resolver: null\n  });\n  /**\n    This function defines the default lookup rules for container lookups:\n  \n    * templates are looked up on `Ember.TEMPLATES`\n    * other names are looked up on the application after classifying the name.\n      For example, `controller:post` looks up `App.PostController` by default.\n    * if the default lookup fails, look for registered classes on the container\n  \n    This allows the application to register default injections in the container\n    that could be overridden by the normal naming convention.\n  \n    @private\n    @method resolverFor\n    @param {Ember.Namespace} namespace the namespace to look for classes\n    @return {*} the resolved value for a given lookup\n  */\n\n  function resolverFor(namespace) {\n    var ResolverClass = (0, _metal.get)(namespace, 'Resolver') || _globalsResolver.default;\n\n    var props = {\n      namespace\n    };\n    return ResolverClass.create(props);\n  }\n\n  function buildInitializerMethod(bucketName, humanName) {\n    return function (initializer) {\n      // If this is the first initializer being added to a subclass, we are going to reopen the class\n      // to make sure we have a new `initializers` object, which extends from the parent class' using\n      // prototypal inheritance. Without this, attempting to add initializers to the subclass would\n      // pollute the parent class as well as other subclasses.\n      if (this.superclass[bucketName] !== undefined && this.superclass[bucketName] === this[bucketName]) {\n        var attrs = {};\n        attrs[bucketName] = Object.create(this[bucketName]);\n        this.reopenClass(attrs);\n      }\n\n      (true && !(!this[bucketName][initializer.name]) && (0, _debug.assert)(`The ${humanName} '${initializer.name}' has already been registered`, !this[bucketName][initializer.name]));\n      (true && !((0, _utils.canInvoke)(initializer, 'initialize')) && (0, _debug.assert)(`An ${humanName} cannot be registered without an initialize function`, (0, _utils.canInvoke)(initializer, 'initialize')));\n      (true && !(initializer.name !== undefined) && (0, _debug.assert)(`An ${humanName} cannot be registered without a name property`, initializer.name !== undefined));\n      this[bucketName][initializer.name] = initializer;\n    };\n  }\n\n  function commonSetupRegistry(registry) {\n    registry.optionsForType('component', {\n      singleton: false\n    });\n    registry.optionsForType('view', {\n      singleton: false\n    });\n    registry.register('controller:basic', _controller.default, {\n      instantiate: false\n    });\n    registry.injection('view', '_viewRegistry', '-view-registry:main');\n    registry.injection('renderer', '_viewRegistry', '-view-registry:main');\n    registry.injection('route', '_topLevelViewTemplate', 'template:-outlet');\n    registry.injection('view:-outlet', 'namespace', 'application:main');\n    registry.injection('controller', 'target', 'router:main');\n    registry.injection('controller', 'namespace', 'application:main');\n    registry.injection('router', '_bucketCache', (0, _container.privatize)`-bucket-cache:main`);\n    registry.injection('route', '_bucketCache', (0, _container.privatize)`-bucket-cache:main`);\n    registry.injection('route', '_router', 'router:main'); // Register the routing service...\n\n    registry.register('service:-routing', _routing.RoutingService); // Then inject the app router into it\n\n    registry.injection('service:-routing', 'router', 'router:main'); // DEBUGGING\n\n    registry.register('resolver-for-debugging:main', registry.resolver, {\n      instantiate: false\n    });\n    registry.injection('container-debug-adapter:main', 'resolver', 'resolver-for-debugging:main');\n    registry.injection('data-adapter:main', 'containerDebugAdapter', 'container-debug-adapter:main'); // Custom resolver authors may want to register their own ContainerDebugAdapter with this key\n\n    registry.register('container-debug-adapter:main', _extensionSupport.ContainerDebugAdapter);\n    registry.register('component-lookup:main', _views.ComponentLookup);\n  }\n\n  var _default = Engine;\n  _exports.default = _default;\n});","define(\"@ember/engine/instance\", [\"exports\", \"@ember/-internals/runtime\", \"@ember/debug\", \"@ember/error\", \"@ember/-internals/container\", \"@ember/-internals/utils\", \"@ember/engine/lib/engine-parent\"], function (_exports, _runtime, _debug, _error, _container, _utils, _engineParent) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n  @module @ember/engine\n  */\n\n  /**\n    The `EngineInstance` encapsulates all of the stateful aspects of a\n    running `Engine`.\n  \n    @public\n    @class EngineInstance\n    @extends EmberObject\n    @uses RegistryProxyMixin\n    @uses ContainerProxyMixin\n  */\n  var EngineInstance = _runtime.Object.extend(_runtime.RegistryProxyMixin, _runtime.ContainerProxyMixin, {\n    /**\n      The base `Engine` for which this is an instance.\n       @property {Engine} engine\n      @private\n    */\n    base: null,\n\n    init() {\n      this._super(...arguments); // Ensure the guid gets setup for this instance\n\n\n      (0, _utils.guidFor)(this);\n      var base = this.base;\n\n      if (!base) {\n        base = this.application;\n        this.base = base;\n      } // Create a per-instance registry that will use the application's registry\n      // as a fallback for resolving registrations.\n\n\n      var registry = this.__registry__ = new _container.Registry({\n        fallback: base.__registry__\n      }); // Create a per-instance container from the instance's registry\n\n      this.__container__ = registry.container({\n        owner: this\n      });\n      this._booted = false;\n    },\n\n    /**\n      Initialize the `EngineInstance` and return a promise that resolves\n      with the instance itself when the boot process is complete.\n       The primary task here is to run any registered instance initializers.\n       See the documentation on `BootOptions` for the options it takes.\n       @public\n      @method boot\n      @param options {Object}\n      @return {Promise<EngineInstance,Error>}\n    */\n    boot(options) {\n      if (this._bootPromise) {\n        return this._bootPromise;\n      }\n\n      this._bootPromise = new _runtime.RSVP.Promise(resolve => resolve(this._bootSync(options)));\n      return this._bootPromise;\n    },\n\n    /**\n      Unfortunately, a lot of existing code assumes booting an instance is\n      synchronous – specifically, a lot of tests assume the last call to\n      `app.advanceReadiness()` or `app.reset()` will result in a new instance\n      being fully-booted when the current runloop completes.\n       We would like new code (like the `visit` API) to stop making this\n      assumption, so we created the asynchronous version above that returns a\n      promise. But until we have migrated all the code, we would have to expose\n      this method for use *internally* in places where we need to boot an instance\n      synchronously.\n       @private\n    */\n    _bootSync(options) {\n      if (this._booted) {\n        return this;\n      }\n\n      (true && !((0, _engineParent.getEngineParent)(this)) && (0, _debug.assert)(\"An engine instance's parent must be set via `setEngineParent(engine, parent)` prior to calling `engine.boot()`.\", (0, _engineParent.getEngineParent)(this)));\n      this.cloneParentDependencies();\n      this.setupRegistry(options);\n      this.base.runInstanceInitializers(this);\n      this._booted = true;\n      return this;\n    },\n\n    setupRegistry(options = this.__container__.lookup('-environment:main')) {\n      this.constructor.setupRegistry(this.__registry__, options);\n    },\n\n    /**\n     Unregister a factory.\n      Overrides `RegistryProxy#unregister` in order to clear any cached instances\n     of the unregistered factory.\n      @public\n     @method unregister\n     @param {String} fullName\n     */\n    unregister(fullName) {\n      this.__container__.reset(fullName);\n\n      this._super(...arguments);\n    },\n\n    /**\n      Build a new `EngineInstance` that's a child of this instance.\n       Engines must be registered by name with their parent engine\n      (or application).\n       @private\n      @method buildChildEngineInstance\n      @param name {String} the registered name of the engine.\n      @param options {Object} options provided to the engine instance.\n      @return {EngineInstance,Error}\n    */\n    buildChildEngineInstance(name, options = {}) {\n      var Engine = this.lookup(`engine:${name}`);\n\n      if (!Engine) {\n        throw new _error.default(`You attempted to mount the engine '${name}', but it is not registered with its parent.`);\n      }\n\n      var engineInstance = Engine.buildInstance(options);\n      (0, _engineParent.setEngineParent)(engineInstance, this);\n      return engineInstance;\n    },\n\n    /**\n      Clone dependencies shared between an engine instance and its parent.\n       @private\n      @method cloneParentDependencies\n    */\n    cloneParentDependencies() {\n      var parent = (0, _engineParent.getEngineParent)(this);\n      var registrations = ['route:basic', 'service:-routing'];\n      registrations.forEach(key => this.register(key, parent.resolveRegistration(key)));\n      var env = parent.lookup('-environment:main');\n      this.register('-environment:main', env, {\n        instantiate: false\n      });\n      var singletons = ['router:main', (0, _container.privatize)`-bucket-cache:main`, '-view-registry:main', `renderer:-${env.isInteractive ? 'dom' : 'inert'}`, 'service:-document'];\n\n      if (env.isInteractive) {\n        singletons.push('event_dispatcher:main');\n      }\n\n      singletons.forEach(key => this.register(key, parent.lookup(key), {\n        instantiate: false\n      }));\n      this.inject('view', '_environment', '-environment:main');\n      this.inject('route', '_environment', '-environment:main');\n    }\n\n  });\n\n  EngineInstance.reopenClass({\n    /**\n     @private\n     @method setupRegistry\n     @param {Registry} registry\n     @param {BootOptions} options\n     */\n    setupRegistry(registry, options) {\n      // when no options/environment is present, do nothing\n      if (!options) {\n        return;\n      }\n\n      registry.injection('view', '_environment', '-environment:main');\n      registry.injection('route', '_environment', '-environment:main');\n\n      if (options.isInteractive) {\n        registry.injection('view', 'renderer', 'renderer:-dom');\n        registry.injection('component', 'renderer', 'renderer:-dom');\n      } else {\n        registry.injection('view', 'renderer', 'renderer:-inert');\n        registry.injection('component', 'renderer', 'renderer:-inert');\n      }\n    }\n\n  });\n  var _default = EngineInstance;\n  _exports.default = _default;\n});","define(\"@ember/engine/lib/engine-parent\", [\"exports\", \"@ember/-internals/utils\"], function (_exports, _utils) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.getEngineParent = getEngineParent;\n  _exports.setEngineParent = setEngineParent;\n\n  /**\n  @module @ember/engine\n  */\n  var ENGINE_PARENT = (0, _utils.symbol)('ENGINE_PARENT');\n  /**\n    `getEngineParent` retrieves an engine instance's parent instance.\n  \n    @method getEngineParent\n    @param {EngineInstance} engine An engine instance.\n    @return {EngineInstance} The parent engine instance.\n    @for @ember/engine\n    @static\n    @private\n  */\n\n  function getEngineParent(engine) {\n    return engine[ENGINE_PARENT];\n  }\n  /**\n    `setEngineParent` sets an engine instance's parent instance.\n  \n    @method setEngineParent\n    @param {EngineInstance} engine An engine instance.\n    @param {EngineInstance} parent The parent engine instance.\n    @private\n  */\n\n\n  function setEngineParent(engine, parent) {\n    engine[ENGINE_PARENT] = parent;\n  }\n});","define(\"@ember/error/index\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n   @module @ember/error\n  */\n\n  /**\n    The JavaScript Error object used by Ember.assert.\n  \n    @class Error\n    @namespace Ember\n    @extends Error\n    @constructor\n    @public\n  */\n  var _default = Error;\n  _exports.default = _default;\n});","define(\"@ember/instrumentation/index\", [\"exports\", \"@ember/-internals/environment\"], function (_exports, _environment) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.instrument = instrument;\n  _exports._instrumentStart = _instrumentStart;\n  _exports.subscribe = subscribe;\n  _exports.unsubscribe = unsubscribe;\n  _exports.reset = reset;\n  _exports.flaggedInstrument = _exports.subscribers = void 0;\n\n  /* eslint no-console:off */\n\n  /* global console */\n\n  /**\n  @module @ember/instrumentation\n  @private\n  */\n\n  /**\n    The purpose of the Ember Instrumentation module is\n    to provide efficient, general-purpose instrumentation\n    for Ember.\n  \n    Subscribe to a listener by using `subscribe`:\n  \n    ```javascript\n    import { subscribe } from '@ember/instrumentation';\n  \n    subscribe(\"render\", {\n      before(name, timestamp, payload) {\n  \n      },\n  \n      after(name, timestamp, payload) {\n  \n      }\n    });\n    ```\n  \n    If you return a value from the `before` callback, that same\n    value will be passed as a fourth parameter to the `after`\n    callback.\n  \n    Instrument a block of code by using `instrument`:\n  \n    ```javascript\n    import { instrument } from '@ember/instrumentation';\n  \n    instrument(\"render.handlebars\", payload, function() {\n      // rendering logic\n    }, binding);\n    ```\n  \n    Event names passed to `instrument` are namespaced\n    by periods, from more general to more specific. Subscribers\n    can listen for events by whatever level of granularity they\n    are interested in.\n  \n    In the above example, the event is `render.handlebars`,\n    and the subscriber listened for all events beginning with\n    `render`. It would receive callbacks for events named\n    `render`, `render.handlebars`, `render.container`, or\n    even `render.handlebars.layout`.\n  \n    @class Instrumentation\n    @static\n    @private\n  */\n  var subscribers = [];\n  _exports.subscribers = subscribers;\n  var cache = {};\n\n  function populateListeners(name) {\n    var listeners = [];\n    var subscriber;\n\n    for (var i = 0; i < subscribers.length; i++) {\n      subscriber = subscribers[i];\n\n      if (subscriber.regex.test(name)) {\n        listeners.push(subscriber.object);\n      }\n    }\n\n    cache[name] = listeners;\n    return listeners;\n  }\n\n  var time = (() => {\n    var perf = 'undefined' !== typeof window ? window.performance || {} : {};\n    var fn = perf.now || perf.mozNow || perf.webkitNow || perf.msNow || perf.oNow;\n    return fn ? fn.bind(perf) : Date.now;\n  })();\n\n  function isCallback(value) {\n    return typeof value === 'function';\n  }\n\n  function instrument(name, p1, p2, p3) {\n    var _payload;\n\n    var callback;\n    var binding;\n\n    if (arguments.length <= 3 && isCallback(p1)) {\n      callback = p1;\n      binding = p2;\n    } else {\n      _payload = p1;\n      callback = p2;\n      binding = p3;\n    } // fast path\n\n\n    if (subscribers.length === 0) {\n      return callback.call(binding);\n    } // avoid allocating the payload in fast path\n\n\n    var payload = _payload || {};\n\n    var finalizer = _instrumentStart(name, () => payload);\n\n    if (finalizer === NOOP) {\n      return callback.call(binding);\n    } else {\n      return withFinalizer(callback, finalizer, payload, binding);\n    }\n  }\n\n  var flaggedInstrument;\n  _exports.flaggedInstrument = flaggedInstrument;\n\n  if (false\n  /* EMBER_IMPROVED_INSTRUMENTATION */\n  ) {\n      _exports.flaggedInstrument = flaggedInstrument = instrument;\n    } else {\n    _exports.flaggedInstrument = flaggedInstrument = function instrument(_name, _payload, callback) {\n      return callback();\n    };\n  }\n\n  function withFinalizer(callback, finalizer, payload, binding) {\n    try {\n      return callback.call(binding);\n    } catch (e) {\n      payload.exception = e;\n      throw e;\n    } finally {\n      finalizer();\n    }\n  }\n\n  function NOOP() {}\n\n  function _instrumentStart(name, payloadFunc, payloadArg) {\n    if (subscribers.length === 0) {\n      return NOOP;\n    }\n\n    var listeners = cache[name];\n\n    if (!listeners) {\n      listeners = populateListeners(name);\n    }\n\n    if (listeners.length === 0) {\n      return NOOP;\n    }\n\n    var payload = payloadFunc(payloadArg);\n    var STRUCTURED_PROFILE = _environment.ENV.STRUCTURED_PROFILE;\n    var timeName;\n\n    if (STRUCTURED_PROFILE) {\n      timeName = `${name}: ${payload.object}`;\n      console.time(timeName);\n    }\n\n    var beforeValues = [];\n    var timestamp = time();\n\n    for (var i = 0; i < listeners.length; i++) {\n      var listener = listeners[i];\n      beforeValues.push(listener.before(name, timestamp, payload));\n    }\n\n    return function _instrumentEnd() {\n      var timestamp = time();\n\n      for (var _i = 0; _i < listeners.length; _i++) {\n        var _listener = listeners[_i];\n\n        if (typeof _listener.after === 'function') {\n          _listener.after(name, timestamp, payload, beforeValues[_i]);\n        }\n      }\n\n      if (STRUCTURED_PROFILE) {\n        console.timeEnd(timeName);\n      }\n    };\n  }\n  /**\n    Subscribes to a particular event or instrumented block of code.\n  \n    @method subscribe\n    @for @ember/instrumentation\n    @static\n  \n    @param {String} [pattern] Namespaced event name.\n    @param {Object} [object] Before and After hooks.\n  \n    @return {Subscriber}\n    @private\n  */\n\n\n  function subscribe(pattern, object) {\n    var paths = pattern.split('.');\n    var path;\n    var regexes = [];\n\n    for (var i = 0; i < paths.length; i++) {\n      path = paths[i];\n\n      if (path === '*') {\n        regexes.push('[^\\\\.]*');\n      } else {\n        regexes.push(path);\n      }\n    }\n\n    var regex = regexes.join('\\\\.');\n    regex = `${regex}(\\\\..*)?`;\n    var subscriber = {\n      pattern,\n      regex: new RegExp(`^${regex}$`),\n      object\n    };\n    subscribers.push(subscriber);\n    cache = {};\n    return subscriber;\n  }\n  /**\n    Unsubscribes from a particular event or instrumented block of code.\n  \n    @method unsubscribe\n    @for @ember/instrumentation\n    @static\n  \n    @param {Object} [subscriber]\n    @private\n  */\n\n\n  function unsubscribe(subscriber) {\n    var index = 0;\n\n    for (var i = 0; i < subscribers.length; i++) {\n      if (subscribers[i] === subscriber) {\n        index = i;\n      }\n    }\n\n    subscribers.splice(index, 1);\n    cache = {};\n  }\n  /**\n    Resets `Instrumentation` by flushing list of subscribers.\n  \n    @method reset\n    @for @ember/instrumentation\n    @static\n    @private\n  */\n\n\n  function reset() {\n    subscribers.length = 0;\n    cache = {};\n  }\n});","define(\"@ember/modifier/index\", [\"exports\", \"@ember/-internals/glimmer\"], function (_exports, _glimmer) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"setModifierManager\", {\n    enumerable: true,\n    get: function () {\n      return _glimmer.setModifierManager;\n    }\n  });\n  Object.defineProperty(_exports, \"capabilties\", {\n    enumerable: true,\n    get: function () {\n      return _glimmer.modifierCapabilities;\n    }\n  });\n});","define(\"@ember/object/compat\", [\"exports\", \"@ember/-internals/metal\", \"@ember/debug\", \"@glimmer/validator\"], function (_exports, _metal, _debug, _validator) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.dependentKeyCompat = dependentKeyCompat;\n\n  var wrapGetterSetter = function (_target, key, desc) {\n    var {\n      get: originalGet\n    } = desc;\n\n    if (originalGet !== undefined) {\n      desc.get = function () {\n        var propertyTag = (0, _metal.tagForProperty)(this, key);\n        var ret;\n        var tag = (0, _validator.track)(() => {\n          ret = originalGet.call(this);\n        });\n        (0, _validator.updateTag)(propertyTag, tag);\n        (0, _validator.consumeTag)(tag);\n        return ret;\n      };\n    }\n\n    return desc;\n  };\n\n  function dependentKeyCompat(target, key, desc) {\n    if (!(0, _metal.isElementDescriptor)([target, key, desc])) {\n      desc = target;\n\n      var decorator = function (target, key, _desc, _meta, isClassicDecorator) {\n        (true && !(isClassicDecorator) && (0, _debug.assert)('The @dependentKeyCompat decorator may only be passed a method when used in classic classes. You should decorate getters/setters directly in native classes', isClassicDecorator));\n        (true && !(desc !== null && typeof desc === 'object' && (typeof desc.get === 'function' || typeof desc.set === 'function')) && (0, _debug.assert)('The dependentKeyCompat() decorator must be passed a getter or setter when used in classic classes', desc !== null && typeof desc === 'object' && (typeof desc.get === 'function' || typeof desc.set === 'function')));\n        return wrapGetterSetter(target, key, desc);\n      };\n\n      (0, _metal.setClassicDecorator)(decorator);\n      return decorator;\n    }\n\n    (true && !(desc !== null && typeof desc.get === 'function' || typeof desc.set === 'function') && (0, _debug.assert)('The @dependentKeyCompat decorator must be applied to getters/setters when used in native classes', desc !== null && typeof desc.get === 'function' || typeof desc.set === 'function'));\n    return wrapGetterSetter(target, key, desc);\n  }\n\n  (0, _metal.setClassicDecorator)(dependentKeyCompat);\n});","define(\"@ember/object/computed\", [\"exports\", \"@ember/object/lib/computed/computed_macros\", \"@ember/object/lib/computed/reduce_computed_macros\"], function (_exports, _computed_macros, _reduce_computed_macros) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"empty\", {\n    enumerable: true,\n    get: function () {\n      return _computed_macros.empty;\n    }\n  });\n  Object.defineProperty(_exports, \"notEmpty\", {\n    enumerable: true,\n    get: function () {\n      return _computed_macros.notEmpty;\n    }\n  });\n  Object.defineProperty(_exports, \"none\", {\n    enumerable: true,\n    get: function () {\n      return _computed_macros.none;\n    }\n  });\n  Object.defineProperty(_exports, \"not\", {\n    enumerable: true,\n    get: function () {\n      return _computed_macros.not;\n    }\n  });\n  Object.defineProperty(_exports, \"bool\", {\n    enumerable: true,\n    get: function () {\n      return _computed_macros.bool;\n    }\n  });\n  Object.defineProperty(_exports, \"match\", {\n    enumerable: true,\n    get: function () {\n      return _computed_macros.match;\n    }\n  });\n  Object.defineProperty(_exports, \"equal\", {\n    enumerable: true,\n    get: function () {\n      return _computed_macros.equal;\n    }\n  });\n  Object.defineProperty(_exports, \"gt\", {\n    enumerable: true,\n    get: function () {\n      return _computed_macros.gt;\n    }\n  });\n  Object.defineProperty(_exports, \"gte\", {\n    enumerable: true,\n    get: function () {\n      return _computed_macros.gte;\n    }\n  });\n  Object.defineProperty(_exports, \"lt\", {\n    enumerable: true,\n    get: function () {\n      return _computed_macros.lt;\n    }\n  });\n  Object.defineProperty(_exports, \"lte\", {\n    enumerable: true,\n    get: function () {\n      return _computed_macros.lte;\n    }\n  });\n  Object.defineProperty(_exports, \"oneWay\", {\n    enumerable: true,\n    get: function () {\n      return _computed_macros.oneWay;\n    }\n  });\n  Object.defineProperty(_exports, \"readOnly\", {\n    enumerable: true,\n    get: function () {\n      return _computed_macros.readOnly;\n    }\n  });\n  Object.defineProperty(_exports, \"deprecatingAlias\", {\n    enumerable: true,\n    get: function () {\n      return _computed_macros.deprecatingAlias;\n    }\n  });\n  Object.defineProperty(_exports, \"and\", {\n    enumerable: true,\n    get: function () {\n      return _computed_macros.and;\n    }\n  });\n  Object.defineProperty(_exports, \"or\", {\n    enumerable: true,\n    get: function () {\n      return _computed_macros.or;\n    }\n  });\n  Object.defineProperty(_exports, \"sum\", {\n    enumerable: true,\n    get: function () {\n      return _reduce_computed_macros.sum;\n    }\n  });\n  Object.defineProperty(_exports, \"min\", {\n    enumerable: true,\n    get: function () {\n      return _reduce_computed_macros.min;\n    }\n  });\n  Object.defineProperty(_exports, \"max\", {\n    enumerable: true,\n    get: function () {\n      return _reduce_computed_macros.max;\n    }\n  });\n  Object.defineProperty(_exports, \"map\", {\n    enumerable: true,\n    get: function () {\n      return _reduce_computed_macros.map;\n    }\n  });\n  Object.defineProperty(_exports, \"sort\", {\n    enumerable: true,\n    get: function () {\n      return _reduce_computed_macros.sort;\n    }\n  });\n  Object.defineProperty(_exports, \"setDiff\", {\n    enumerable: true,\n    get: function () {\n      return _reduce_computed_macros.setDiff;\n    }\n  });\n  Object.defineProperty(_exports, \"mapBy\", {\n    enumerable: true,\n    get: function () {\n      return _reduce_computed_macros.mapBy;\n    }\n  });\n  Object.defineProperty(_exports, \"filter\", {\n    enumerable: true,\n    get: function () {\n      return _reduce_computed_macros.filter;\n    }\n  });\n  Object.defineProperty(_exports, \"filterBy\", {\n    enumerable: true,\n    get: function () {\n      return _reduce_computed_macros.filterBy;\n    }\n  });\n  Object.defineProperty(_exports, \"uniq\", {\n    enumerable: true,\n    get: function () {\n      return _reduce_computed_macros.uniq;\n    }\n  });\n  Object.defineProperty(_exports, \"uniqBy\", {\n    enumerable: true,\n    get: function () {\n      return _reduce_computed_macros.uniqBy;\n    }\n  });\n  Object.defineProperty(_exports, \"union\", {\n    enumerable: true,\n    get: function () {\n      return _reduce_computed_macros.union;\n    }\n  });\n  Object.defineProperty(_exports, \"intersect\", {\n    enumerable: true,\n    get: function () {\n      return _reduce_computed_macros.intersect;\n    }\n  });\n  Object.defineProperty(_exports, \"collect\", {\n    enumerable: true,\n    get: function () {\n      return _reduce_computed_macros.collect;\n    }\n  });\n});","define(\"@ember/object/index\", [\"exports\", \"@ember/debug\", \"@ember/polyfills\", \"@ember/-internals/metal\"], function (_exports, _debug, _polyfills, _metal) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.action = action;\n\n  /**\n    Decorator that turns the target function into an Action which can be accessed\n    directly by reference.\n  \n    ```js\n    import Component from '@ember/component';\n    import { action, set } from '@ember/object';\n  \n    export default class Tooltip extends Component {\n      @action\n      toggleShowing() {\n        set(this, 'isShowing', !this.isShowing);\n      }\n    }\n    ```\n    ```hbs\n    <!-- template.hbs -->\n    <button {{action this.toggleShowing}}>Show tooltip</button>\n  \n    {{#if isShowing}}\n      <div class=\"tooltip\">\n        I'm a tooltip!\n      </div>\n    {{/if}}\n    ```\n  \n    Decorated actions also interop with the string style template actions:\n  \n    ```hbs\n    <!-- template.hbs -->\n    <button {{action \"toggleShowing\"}}>Show tooltip</button>\n  \n    {{#if isShowing}}\n      <div class=\"tooltip\">\n        I'm a tooltip!\n      </div>\n    {{/if}}\n    ```\n  \n    It also binds the function directly to the instance, so it can be used in any\n    context and will correctly refer to the class it came from:\n  \n    ```hbs\n    <!-- template.hbs -->\n    <button\n      {{did-insert this.toggleShowing}}\n      {{on \"click\" this.toggleShowing}}\n    >\n      Show tooltip\n    </button>\n  \n    {{#if isShowing}}\n      <div class=\"tooltip\">\n        I'm a tooltip!\n      </div>\n    {{/if}}\n    ```\n  \n    This can also be used in JavaScript code directly:\n  \n    ```js\n    import Component from '@ember/component';\n    import { action, set } from '@ember/object';\n  \n    export default class Tooltip extends Component {\n      constructor() {\n        super(...arguments);\n  \n        // this.toggleShowing is still bound correctly when added to\n        // the event listener\n        document.addEventListener('click', this.toggleShowing);\n      }\n  \n      @action\n      toggleShowing() {\n        set(this, 'isShowing', !this.isShowing);\n      }\n    }\n    ```\n  \n    This is considered best practice, since it means that methods will be bound\n    correctly no matter where they are used. By contrast, the `{{action}}` helper\n    and modifier can also be used to bind context, but it will be required for\n    every usage of the method:\n  \n    ```hbs\n    <!-- template.hbs -->\n    <button\n      {{did-insert (action this.toggleShowing)}}\n      {{on \"click\" (action this.toggleShowing)}}\n    >\n      Show tooltip\n    </button>\n  \n    {{#if isShowing}}\n      <div class=\"tooltip\">\n        I'm a tooltip!\n      </div>\n    {{/if}}\n    ```\n  \n    They also do not have equivalents in JavaScript directly, so they cannot be\n    used for other situations where binding would be useful.\n  \n    @public\n    @method action\n    @for @ember/object\n    @static\n    @param {Function|undefined} callback The function to turn into an action,\n                                         when used in classic classes\n    @return {PropertyDecorator} property decorator instance\n  */\n  var BINDINGS_MAP = new WeakMap();\n\n  function setupAction(target, key, actionFn) {\n    if (target.constructor !== undefined && typeof target.constructor.proto === 'function') {\n      target.constructor.proto();\n    }\n\n    if (!target.hasOwnProperty('actions')) {\n      var parentActions = target.actions; // we need to assign because of the way mixins copy actions down when inheriting\n\n      target.actions = parentActions ? (0, _polyfills.assign)({}, parentActions) : {};\n    }\n\n    target.actions[key] = actionFn;\n    return {\n      get() {\n        var bindings = BINDINGS_MAP.get(this);\n\n        if (bindings === undefined) {\n          bindings = new Map();\n          BINDINGS_MAP.set(this, bindings);\n        }\n\n        var fn = bindings.get(actionFn);\n\n        if (fn === undefined) {\n          fn = actionFn.bind(this);\n          bindings.set(actionFn, fn);\n        }\n\n        return fn;\n      }\n\n    };\n  }\n\n  function action(target, key, desc) {\n    var actionFn;\n\n    if (!(0, _metal.isElementDescriptor)([target, key, desc])) {\n      actionFn = target;\n\n      var decorator = function (target, key, desc, meta, isClassicDecorator) {\n        (true && !(isClassicDecorator) && (0, _debug.assert)('The @action decorator may only be passed a method when used in classic classes. You should decorate methods directly in native classes', isClassicDecorator));\n        (true && !(typeof actionFn === 'function') && (0, _debug.assert)('The action() decorator must be passed a method when used in classic classes', typeof actionFn === 'function'));\n        return setupAction(target, key, actionFn);\n      };\n\n      (0, _metal.setClassicDecorator)(decorator);\n      return decorator;\n    }\n\n    actionFn = desc.value;\n    (true && !(typeof actionFn === 'function') && (0, _debug.assert)('The @action decorator must be applied to methods when used in native classes', typeof actionFn === 'function'));\n    return setupAction(target, key, actionFn);\n  }\n\n  (0, _metal.setClassicDecorator)(action);\n});","define(\"@ember/object/lib/computed/computed_macros\", [\"exports\", \"@ember/-internals/metal\", \"@ember/debug\"], function (_exports, _metal, _debug) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.empty = empty;\n  _exports.notEmpty = notEmpty;\n  _exports.none = none;\n  _exports.not = not;\n  _exports.bool = bool;\n  _exports.match = match;\n  _exports.equal = equal;\n  _exports.gt = gt;\n  _exports.gte = gte;\n  _exports.lt = lt;\n  _exports.lte = lte;\n  _exports.oneWay = oneWay;\n  _exports.readOnly = readOnly;\n  _exports.deprecatingAlias = deprecatingAlias;\n  _exports.or = _exports.and = void 0;\n\n  /**\n  @module @ember/object\n  */\n  function expandPropertiesToArray(predicateName, properties) {\n    var expandedProperties = [];\n\n    function extractProperty(entry) {\n      expandedProperties.push(entry);\n    }\n\n    for (var i = 0; i < properties.length; i++) {\n      var property = properties[i];\n      (true && !(property.indexOf(' ') < 0) && (0, _debug.assert)(`Dependent keys passed to computed.${predicateName}() can\\'t have spaces.`, property.indexOf(' ') < 0));\n      (0, _metal.expandProperties)(property, extractProperty);\n    }\n\n    return expandedProperties;\n  }\n\n  function generateComputedWithPredicate(name, predicate) {\n    return (...properties) => {\n      (true && !(!(0, _metal.isElementDescriptor)(properties)) && (0, _debug.assert)(`You attempted to use @${name} as a decorator directly, but it requires at least one dependent key parameter`, !(0, _metal.isElementDescriptor)(properties)));\n      var dependentKeys = expandPropertiesToArray(name, properties);\n      var computedFunc = (0, _metal.computed)(...dependentKeys, function () {\n        var lastIdx = dependentKeys.length - 1;\n\n        for (var i = 0; i < lastIdx; i++) {\n          var value = (0, _metal.get)(this, dependentKeys[i]);\n\n          if (!predicate(value)) {\n            return value;\n          }\n        }\n\n        return (0, _metal.get)(this, dependentKeys[lastIdx]);\n      });\n      return computedFunc;\n    };\n  }\n  /**\n    A computed property macro that returns true if the value of the dependent\n    property is null, an empty string, empty array, or empty function.\n  \n    Example:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { empty } from '@ember/object/computed';\n  \n    class ToDoList {\n      constructor(todos) {\n        set(this, 'todos', todos);\n      }\n  \n      @empty('todos') isDone;\n    }\n  \n    let todoList = new ToDoList(\n      ['Unit Test', 'Documentation', 'Release']\n    );\n  \n    todoList.isDone; // false\n    set(todoList, 'todos', []);\n    todoList.isDone; // true\n    ```\n  \n    Classic Class Example:\n  \n    ```javascript\n    import EmberObject, { set } from '@ember/object';\n    import { empty } from '@ember/object/computed';\n  \n    let ToDoList = EmberObject.extend({\n      isDone: empty('todos')\n    });\n  \n    let todoList = ToDoList.create({\n      todos: ['Unit Test', 'Documentation', 'Release']\n    });\n  \n    todoList.isDone; // false\n    set(todoList, 'todos', []);\n    todoList.isDone; // true\n    ```\n  \n    @since 1.6.0\n    @method empty\n    @static\n    @for @ember/object/computed\n    @param {String} dependentKey\n    @return {ComputedProperty} computed property which returns true if the value\n    of the dependent property is null, an empty string, empty array, or empty\n    function and false if the underlying value is not empty.\n  \n    @public\n  */\n\n\n  function empty(dependentKey) {\n    (true && !(!(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))) && (0, _debug.assert)('You attempted to use @empty as a decorator directly, but it requires a `dependentKey` parameter', !(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))));\n    return (0, _metal.computed)(`${dependentKey}.length`, function () {\n      return (0, _metal.isEmpty)((0, _metal.get)(this, dependentKey));\n    });\n  }\n  /**\n    A computed property that returns true if the value of the dependent property\n    is NOT null, an empty string, empty array, or empty function.\n  \n    Example:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { notEmpty } from '@ember/object/computed';\n  \n    class Hamster {\n      constructor(backpack) {\n        set(this, 'backpack', backpack);\n      }\n  \n      @notEmpty('backpack') hasStuff\n    }\n  \n    let hamster = new Hamster(\n      ['Food', 'Sleeping Bag', 'Tent']\n    );\n  \n    hamster.hasStuff; // true\n    set(hamster, 'backpack', []);\n    hamster.hasStuff; // false\n    ```\n  \n    Classic Class Example:\n  \n    ```javascript\n    import EmberObject, { set } from '@ember/object';\n    import { notEmpty } from '@ember/object/computed';\n  \n    let Hamster = EmberObject.extend({\n      hasStuff: notEmpty('backpack')\n    });\n  \n    let hamster = Hamster.create({\n      backpack: ['Food', 'Sleeping Bag', 'Tent']\n    });\n  \n    hamster.hasStuff; // true\n    set(hamster, 'backpack', []);\n    hamster.hasStuff; // false\n    ```\n  \n    @method notEmpty\n    @static\n    @for @ember/object/computed\n    @param {String} dependentKey\n    @return {ComputedProperty} computed property which returns true if original\n    value for property is not empty.\n    @public\n  */\n\n\n  function notEmpty(dependentKey) {\n    (true && !(!(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))) && (0, _debug.assert)('You attempted to use @notEmpty as a decorator directly, but it requires a `dependentKey` parameter', !(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))));\n    return (0, _metal.computed)(`${dependentKey}.length`, function () {\n      return !(0, _metal.isEmpty)((0, _metal.get)(this, dependentKey));\n    });\n  }\n  /**\n    A computed property that returns true if the value of the dependent property\n    is null or undefined. This avoids errors from JSLint complaining about use of\n    ==, which can be technically confusing.\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { none } from '@ember/object/computed';\n  \n    class Hamster {\n      @none('food') isHungry;\n    }\n  \n    let hamster = new Hamster();\n  \n    hamster.isHungry; // true\n  \n    set(hamster, 'food', 'Banana');\n    hamster.isHungry; // false\n  \n    set(hamster, 'food', null);\n    hamster.isHungry; // true\n    ```\n  \n    Classic Class Example:\n  \n    ```javascript\n    import EmberObject, { set } from '@ember/object';\n    import { none } from '@ember/object/computed';\n  \n    let Hamster = EmberObject.extend({\n      isHungry: none('food')\n    });\n  \n    let hamster = Hamster.create();\n  \n    hamster.isHungry; // true\n  \n    set(hamster, 'food', 'Banana');\n    hamster.isHungry; // false\n  \n    set(hamster, 'food', null);\n    hamster.isHungry; // true\n    ```\n  \n    @method none\n    @static\n    @for @ember/object/computed\n    @param {String} dependentKey\n    @return {ComputedProperty} computed property which returns true if original\n    value for property is null or undefined.\n    @public\n  */\n\n\n  function none(dependentKey) {\n    (true && !(!(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))) && (0, _debug.assert)('You attempted to use @none as a decorator directly, but it requires a `dependentKey` parameter', !(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))));\n    return (0, _metal.computed)(dependentKey, function () {\n      return (0, _metal.isNone)((0, _metal.get)(this, dependentKey));\n    });\n  }\n  /**\n    A computed property that returns the inverse boolean value of the original\n    value for the dependent property.\n  \n    Example:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { not } from '@ember/object/computed';\n  \n    class User {\n      loggedIn = false;\n  \n      @not('loggedIn') isAnonymous;\n    }\n  \n    let user = new User();\n  \n    user.isAnonymous; // true\n    set(user, 'loggedIn', true);\n    user.isAnonymous; // false\n    ```\n  \n    Classic Class Example:\n  \n    ```javascript\n    import EmberObject, { set } from '@ember/object';\n    import { not } from '@ember/object/computed';\n  \n    let User = EmberObject.extend({\n      loggedIn: false,\n  \n      isAnonymous: not('loggedIn')\n    });\n  \n    let user = User.create();\n  \n    user.isAnonymous; // true\n    set(user, 'loggedIn', true);\n    user.isAnonymous; // false\n    ```\n  \n    @method not\n    @static\n    @for @ember/object/computed\n    @param {String} dependentKey\n    @return {ComputedProperty} computed property which returns inverse of the\n    original value for property\n    @public\n  */\n\n\n  function not(dependentKey) {\n    (true && !(!(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))) && (0, _debug.assert)('You attempted to use @not as a decorator directly, but it requires a `dependentKey` parameter', !(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))));\n    return (0, _metal.computed)(dependentKey, function () {\n      return !(0, _metal.get)(this, dependentKey);\n    });\n  }\n  /**\n    A computed property that converts the provided dependent property into a\n    boolean value.\n  \n    Example:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { bool } from '@ember/object/computed';\n  \n  \n    class Hamster {\n      @bool('numBananas') hasBananas\n    }\n  \n    let hamster = new Hamster();\n  \n    hamster.hasBananas; // false\n  \n    set(hamster, 'numBananas', 0);\n    hamster.hasBananas; // false\n  \n    set(hamster, 'numBananas', 1);\n    hamster.hasBananas; // true\n  \n    set(hamster, 'numBananas', null);\n    hamster.hasBananas; // false\n    ```\n  \n    Classic Class Example:\n  \n    ```javascript\n    import EmberObject, { set } from '@ember/object';\n    import { bool } from '@ember/object/computed';\n  \n  \n    let Hamster = EmberObject.extend({\n      hasBananas: bool('numBananas')\n    });\n  \n    let hamster = Hamster.create();\n  \n    hamster.hasBananas; // false\n  \n    set(hamster, 'numBananas', 0);\n    hamster.hasBananas; // false\n  \n    set(hamster, 'numBananas', 1);\n    hamster.hasBananas; // true\n  \n    set(hamster, 'numBananas', null);\n    hamster.hasBananas; // false\n    ```\n  \n    @method bool\n    @static\n    @for @ember/object/computed\n    @param {String} dependentKey\n    @return {ComputedProperty} computed property which converts to boolean the\n    original value for property\n    @public\n  */\n\n\n  function bool(dependentKey) {\n    (true && !(!(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))) && (0, _debug.assert)('You attempted to use @bool as a decorator directly, but it requires a `dependentKey` parameter', !(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))));\n    return (0, _metal.computed)(dependentKey, function () {\n      return Boolean((0, _metal.get)(this, dependentKey));\n    });\n  }\n  /**\n    A computed property which matches the original value for the dependent\n    property against a given RegExp, returning `true` if the value matches the\n    RegExp and `false` if it does not.\n  \n    Example:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { match } from '@ember/object/computed';\n  \n    class User {\n      @match('email', /^.+@.+\\..+$/) hasValidEmail;\n    }\n  \n    let user = new User();\n  \n    user.hasValidEmail; // false\n  \n    set(user, 'email', '');\n    user.hasValidEmail; // false\n  \n    set(user, 'email', 'ember_hamster@example.com');\n    user.hasValidEmail; // true\n    ```\n  \n    Classic Class Example:\n  \n    ```javascript\n    import EmberObject, { set } from '@ember/object';\n    import { match } from '@ember/object/computed';\n  \n    let User = EmberObject.extend({\n      hasValidEmail: match('email', /^.+@.+\\..+$/)\n    });\n  \n    let user = User.create();\n  \n    user.hasValidEmail; // false\n  \n    set(user, 'email', '');\n    user.hasValidEmail; // false\n  \n    set(user, 'email', 'ember_hamster@example.com');\n    user.hasValidEmail; // true\n    ```\n  \n    @method match\n    @static\n    @for @ember/object/computed\n    @param {String} dependentKey\n    @param {RegExp} regexp\n    @return {ComputedProperty} computed property which match the original value\n    for property against a given RegExp\n    @public\n  */\n\n\n  function match(dependentKey, regexp) {\n    (true && !(!(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))) && (0, _debug.assert)('You attempted to use @match as a decorator directly, but it requires `dependentKey` and `regexp` parameters', !(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))));\n    return (0, _metal.computed)(dependentKey, function () {\n      var value = (0, _metal.get)(this, dependentKey);\n      return regexp.test(value);\n    });\n  }\n  /**\n    A computed property that returns true if the provided dependent property is\n    equal to the given value.\n  \n    Example:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { equal } from '@ember/object/computed';\n  \n    class Hamster {\n      @equal('percentCarrotsEaten', 100) satisfied;\n    }\n  \n    let hamster = new Hamster();\n  \n    hamster.satisfied; // false\n  \n    set(hamster, 'percentCarrotsEaten', 100);\n    hamster.satisfied; // true\n  \n    set(hamster, 'percentCarrotsEaten', 50);\n    hamster.satisfied; // false\n    ```\n  \n    Classic Class Example:\n  \n    ```javascript\n    import EmberObject, { set } from '@ember/object';\n    import { equal } from '@ember/object/computed';\n  \n    let Hamster = EmberObject.extend({\n      satisfied: equal('percentCarrotsEaten', 100)\n    });\n  \n    let hamster = Hamster.create();\n  \n    hamster.satisfied; // false\n  \n    set(hamster, 'percentCarrotsEaten', 100);\n    hamster.satisfied; // true\n  \n    set(hamster, 'percentCarrotsEaten', 50);\n    hamster.satisfied; // false\n    ```\n  \n    @method equal\n    @static\n    @for @ember/object/computed\n    @param {String} dependentKey\n    @param {String|Number|Object} value\n    @return {ComputedProperty} computed property which returns true if the\n    original value for property is equal to the given value.\n    @public\n  */\n\n\n  function equal(dependentKey, value) {\n    (true && !(!(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))) && (0, _debug.assert)('You attempted to use @equal as a decorator directly, but it requires `dependentKey` and `value` parameter', !(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))));\n    return (0, _metal.computed)(dependentKey, function () {\n      return (0, _metal.get)(this, dependentKey) === value;\n    });\n  }\n  /**\n    A computed property that returns true if the provided dependent property is\n    greater than the provided value.\n  \n    Example:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { gt } from '@ember/object/computed';\n  \n    class Hamster {\n      @gt('numBananas', 10) hasTooManyBananas;\n    }\n  \n    let hamster = new Hamster();\n  \n    hamster.hasTooManyBananas; // false\n  \n    set(hamster, 'numBananas', 3);\n    hamster.hasTooManyBananas; // false\n  \n    set(hamster, 'numBananas', 11);\n    hamster.hasTooManyBananas; // true\n    ```\n  \n    Classic Class Example:\n  \n    ```javascript\n    import EmberObject, { set } from '@ember/object';\n    import { gt } from '@ember/object/computed';\n  \n    let Hamster = EmberObject.extend({\n      hasTooManyBananas: gt('numBananas', 10)\n    });\n  \n    let hamster = Hamster.create();\n  \n    hamster.hasTooManyBananas; // false\n  \n    set(hamster, 'numBananas', 3);\n    hamster.hasTooManyBananas; // false\n  \n    set(hamster, 'numBananas', 11);\n    hamster.hasTooManyBananas; // true\n    ```\n  \n    @method gt\n    @static\n    @for @ember/object/computed\n    @param {String} dependentKey\n    @param {Number} value\n    @return {ComputedProperty} computed property which returns true if the\n    original value for property is greater than given value.\n    @public\n  */\n\n\n  function gt(dependentKey, value) {\n    (true && !(!(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))) && (0, _debug.assert)('You attempted to use @gt as a decorator directly, but it requires `dependentKey` and `value` parameters', !(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))));\n    return (0, _metal.computed)(dependentKey, function () {\n      return (0, _metal.get)(this, dependentKey) > value;\n    });\n  }\n  /**\n    A computed property that returns true if the provided dependent property is\n    greater than or equal to the provided value.\n  \n    Example:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { gte } from '@ember/object/computed';\n  \n    class Hamster {\n      @gte('numBananas', 10) hasTooManyBananas;\n    }\n  \n    let hamster = new Hamster();\n  \n    hamster.hasTooManyBananas; // false\n  \n    set(hamster, 'numBananas', 3);\n    hamster.hasTooManyBananas; // false\n  \n    set(hamster, 'numBananas', 10);\n    hamster.hasTooManyBananas; // true\n    ```\n  \n    Classic Class Example:\n  \n    ```javascript\n    import EmberObject, { set } from '@ember/object';\n    import { gte } from '@ember/object/computed';\n  \n    let Hamster = EmberObject.extend({\n      hasTooManyBananas: gte('numBananas', 10)\n    });\n  \n    let hamster = Hamster.create();\n  \n    hamster.hasTooManyBananas; // false\n  \n    set(hamster, 'numBananas', 3);\n    hamster.hasTooManyBananas; // false\n  \n    set(hamster, 'numBananas', 10);\n    hamster.hasTooManyBananas; // true\n    ```\n  \n    @method gte\n    @static\n    @for @ember/object/computed\n    @param {String} dependentKey\n    @param {Number} value\n    @return {ComputedProperty} computed property which returns true if the\n    original value for property is greater or equal then given value.\n    @public\n  */\n\n\n  function gte(dependentKey, value) {\n    (true && !(!(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))) && (0, _debug.assert)('You attempted to use @gte as a decorator directly, but it requires `dependentKey` and `value` parameters', !(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))));\n    return (0, _metal.computed)(dependentKey, function () {\n      return (0, _metal.get)(this, dependentKey) >= value;\n    });\n  }\n  /**\n    A computed property that returns true if the provided dependent property is\n    less than the provided value.\n  \n    Example:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { lt } from '@ember/object/computed';\n  \n    class Hamster {\n      @lt('numBananas', 3) needsMoreBananas;\n    }\n  \n    let hamster = new Hamster();\n  \n    hamster.needsMoreBananas; // true\n  \n    set(hamster, 'numBananas', 3);\n    hamster.needsMoreBananas; // false\n  \n    set(hamster, 'numBananas', 2);\n    hamster.needsMoreBananas; // true\n    ```\n  \n    Classic Class Example:\n  \n    ```javascript\n    import EmberObject, { set } from '@ember/object';\n    import { lt } from '@ember/object/computed';\n  \n    let Hamster = EmberObject.extend({\n      needsMoreBananas: lt('numBananas', 3)\n    });\n  \n    let hamster = Hamster.create();\n  \n    hamster.needsMoreBananas; // true\n  \n    set(hamster, 'numBananas', 3);\n    hamster.needsMoreBananas; // false\n  \n    set(hamster, 'numBananas', 2);\n    hamster.needsMoreBananas; // true\n    ```\n  \n    @method lt\n    @static\n    @for @ember/object/computed\n    @param {String} dependentKey\n    @param {Number} value\n    @return {ComputedProperty} computed property which returns true if the\n    original value for property is less then given value.\n    @public\n  */\n\n\n  function lt(dependentKey, value) {\n    (true && !(!(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))) && (0, _debug.assert)('You attempted to use @lt as a decorator directly, but it requires `dependentKey` and `value` parameters', !(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))));\n    return (0, _metal.computed)(dependentKey, function () {\n      return (0, _metal.get)(this, dependentKey) < value;\n    });\n  }\n  /**\n    A computed property that returns true if the provided dependent property is\n    less than or equal to the provided value.\n  \n    Example:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { lte } from '@ember/object/computed';\n  \n    class Hamster {\n      @lte('numBananas', 3) needsMoreBananas;\n    }\n  \n    let hamster = new Hamster();\n  \n    hamster.needsMoreBananas; // true\n  \n    set(hamster, 'numBananas', 5);\n    hamster.needsMoreBananas; // false\n  \n    set(hamster, 'numBananas', 3);\n    hamster.needsMoreBananas; // true\n    ```\n  \n    Classic Class Example:\n  \n    ```javascript\n    import EmberObject, { set } from '@ember/object';\n    import { lte } from '@ember/object/computed';\n  \n    let Hamster = EmberObject.extend({\n      needsMoreBananas: lte('numBananas', 3)\n    });\n  \n    let hamster = Hamster.create();\n  \n    hamster.needsMoreBananas; // true\n  \n    set(hamster, 'numBananas', 5);\n    hamster.needsMoreBananas; // false\n  \n    set(hamster, 'numBananas', 3);\n    hamster.needsMoreBananas; // true\n    ```\n  \n    @method lte\n    @static\n    @for @ember/object/computed\n    @param {String} dependentKey\n    @param {Number} value\n    @return {ComputedProperty} computed property which returns true if the\n    original value for property is less or equal than given value.\n    @public\n  */\n\n\n  function lte(dependentKey, value) {\n    (true && !(!(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))) && (0, _debug.assert)('You attempted to use @lte as a decorator directly, but it requires `dependentKey` and `value` parameters', !(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))));\n    return (0, _metal.computed)(dependentKey, function () {\n      return (0, _metal.get)(this, dependentKey) <= value;\n    });\n  }\n  /**\n    A computed property that performs a logical `and` on the original values for\n    the provided dependent properties.\n  \n    You may pass in more than two properties and even use property brace\n    expansion.  The computed property will return the first falsy value or last\n    truthy value just like JavaScript's `&&` operator.\n  \n    Example:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { and } from '@ember/object/computed';\n  \n    class Hamster {\n      @and('hasTent', 'hasBackpack') readyForCamp;\n      @and('hasWalkingStick', 'hasBackpack') readyForHike;\n    }\n  \n    let tomster = new Hamster();\n  \n    tomster.readyForCamp; // false\n  \n    set(tomster, 'hasTent', true);\n    tomster.readyForCamp; // false\n  \n    set(tomster, 'hasBackpack', true);\n    tomster.readyForCamp; // true\n  \n    set(tomster, 'hasBackpack', 'Yes');\n    tomster.readyForCamp; // 'Yes'\n  \n    set(tomster, 'hasWalkingStick', null);\n    tomster.readyForHike; // null\n    ```\n  \n    Classic Class Example:\n  \n    ```javascript\n    import EmberObject, { set } from '@ember/object';\n    import { and } from '@ember/object/computed';\n  \n    let Hamster = EmberObject.extend({\n      readyForCamp: and('hasTent', 'hasBackpack'),\n      readyForHike: and('hasWalkingStick', 'hasBackpack')\n    });\n  \n    let tomster = Hamster.create();\n  \n    tomster.readyForCamp; // false\n  \n    set(tomster, 'hasTent', true);\n    tomster.readyForCamp; // false\n  \n    set(tomster, 'hasBackpack', true);\n    tomster.readyForCamp; // true\n  \n    set(tomster, 'hasBackpack', 'Yes');\n    tomster.readyForCamp; // 'Yes'\n  \n    set(tomster, 'hasWalkingStick', null);\n    tomster.readyForHike; // null\n    ```\n  \n    @method and\n    @static\n    @for @ember/object/computed\n    @param {String} dependentKey*\n    @return {ComputedProperty} computed property which performs a logical `and` on\n    the values of all the original values for properties.\n    @public\n  */\n\n\n  var and = generateComputedWithPredicate('and', value => value);\n  /**\n    A computed property which performs a logical `or` on the original values for\n    the provided dependent properties.\n  \n    You may pass in more than two properties and even use property brace\n    expansion.  The computed property will return the first truthy value or last\n    falsy value just like JavaScript's `||` operator.\n  \n    Example:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { or } from '@ember/object/computed';\n  \n    class Hamster {\n      @or('hasJacket', 'hasUmbrella') readyForRain;\n      @or('hasSunscreen', 'hasUmbrella') readyForBeach;\n    }\n  \n    let tomster = new Hamster();\n  \n    tomster.readyForRain; // undefined\n  \n    set(tomster, 'hasUmbrella', true);\n    tomster.readyForRain; // true\n  \n    set(tomster, 'hasJacket', 'Yes');\n    tomster.readyForRain; // 'Yes'\n  \n    set(tomster, 'hasSunscreen', 'Check');\n    tomster.readyForBeach; // 'Check'\n    ```\n  \n    Classic Class Example:\n  \n    ```javascript\n    import EmberObject, { set } from '@ember/object';\n    import { or } from '@ember/object/computed';\n  \n    let Hamster = EmberObject.extend({\n      readyForRain: or('hasJacket', 'hasUmbrella'),\n      readyForBeach: or('hasSunscreen', 'hasUmbrella')\n    });\n  \n    let tomster = Hamster.create();\n  \n    tomster.readyForRain; // undefined\n  \n    set(tomster, 'hasUmbrella', true);\n    tomster.readyForRain; // true\n  \n    set(tomster, 'hasJacket', 'Yes');\n    tomster.readyForRain; // 'Yes'\n  \n    set(tomster, 'hasSunscreen', 'Check');\n    tomster.readyForBeach; // 'Check'\n    ```\n  \n    @method or\n    @static\n    @for @ember/object/computed\n    @param {String} dependentKey*\n    @return {ComputedProperty} computed property which performs a logical `or` on\n    the values of all the original values for properties.\n    @public\n  */\n\n  _exports.and = and;\n  var or = generateComputedWithPredicate('or', value => !value);\n  /**\n    Creates a new property that is an alias for another property on an object.\n    Calls to `get` or `set` this property behave as though they were called on the\n    original property.\n  \n    Example:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { alias } from '@ember/object/computed';\n  \n    class Person {\n      name = 'Alex Matchneer';\n  \n      @alias('name') nomen;\n    }\n  \n    let alex = new Person();\n  \n    alex.nomen; // 'Alex Matchneer'\n    alex.name;  // 'Alex Matchneer'\n  \n    set(alex, 'nomen', '@machty');\n    alex.name;  // '@machty'\n    ```\n  \n    Classic Class Example:\n  \n    ```javascript\n    import EmberObject, { set } from '@ember/object';\n    import { alias } from '@ember/object/computed';\n  \n    let Person = EmberObject.extend({\n      name: 'Alex Matchneer',\n  \n      nomen: alias('name')\n    });\n  \n    let alex = Person.create();\n  \n    alex.nomen; // 'Alex Matchneer'\n    alex.name;  // 'Alex Matchneer'\n  \n    set(alex, 'nomen', '@machty');\n    alex.name;  // '@machty'\n    ```\n  \n    @method alias\n    @static\n    @for @ember/object/computed\n    @param {String} dependentKey\n    @return {ComputedProperty} computed property which creates an alias to the\n    original value for property.\n    @public\n  */\n\n  /**\n    Where `computed.alias` aliases `get` and `set`, and allows for bidirectional\n    data flow, `computed.oneWay` only provides an aliased `get`. The `set` will\n    not mutate the upstream property, rather causes the current property to become\n    the value set. This causes the downstream property to permanently diverge from\n    the upstream property.\n  \n    Example:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { oneWay }from '@ember/object/computed';\n  \n    class User {\n      constructor(firstName, lastName) {\n        set(this, 'firstName', firstName);\n        set(this, 'lastName', lastName);\n      }\n  \n      @oneWay('firstName') nickName;\n    }\n  \n    let teddy = new User('Teddy', 'Zeenny');\n  \n    teddy.nickName; // 'Teddy'\n  \n    set(teddy, 'nickName', 'TeddyBear');\n    teddy.firstName; // 'Teddy'\n    teddy.nickName; // 'TeddyBear'\n    ```\n  \n    Classic Class Example:\n  \n    ```javascript\n    import EmberObject, { set } from '@ember/object';\n    import { oneWay } from '@ember/object/computed';\n  \n    let User = EmberObject.extend({\n      firstName: null,\n      lastName: null,\n  \n      nickName: oneWay('firstName')\n    });\n  \n    let teddy = User.create({\n      firstName: 'Teddy',\n      lastName: 'Zeenny'\n    });\n  \n    teddy.nickName; // 'Teddy'\n  \n    set(teddy, 'nickName', 'TeddyBear'); // 'TeddyBear'\n    teddy.firstName; // 'Teddy'\n    teddy.nickName; // 'TeddyBear'\n    ```\n  \n    @method oneWay\n    @static\n    @for @ember/object/computed\n    @param {String} dependentKey\n    @return {ComputedProperty} computed property which creates a one way computed\n    property to the original value for property.\n    @public\n  */\n\n  _exports.or = or;\n\n  function oneWay(dependentKey) {\n    (true && !(!(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))) && (0, _debug.assert)('You attempted to use @oneWay as a decorator directly, but it requires a `dependentKey` parameter', !(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))));\n    return (0, _metal.alias)(dependentKey).oneWay();\n  }\n  /**\n    This is a more semantically meaningful alias of `computed.oneWay`, whose name\n    is somewhat ambiguous as to which direction the data flows.\n  \n    @method reads\n    @static\n    @for @ember/object/computed\n    @param {String} dependentKey\n    @return {ComputedProperty} computed property which creates a one way computed\n      property to the original value for property.\n    @public\n   */\n\n  /**\n    Where `computed.oneWay` provides oneWay bindings, `computed.readOnly` provides\n    a readOnly one way binding. Very often when using `computed.oneWay` one does\n    not also want changes to propagate back up, as they will replace the value.\n  \n    This prevents the reverse flow, and also throws an exception when it occurs.\n  \n    Example:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { readOnly } from '@ember/object/computed';\n  \n    class User {\n      constructor(firstName, lastName) {\n        set(this, 'firstName', firstName);\n        set(this, 'lastName', lastName);\n      }\n  \n      @readOnly('firstName') nickName;\n    });\n  \n    let teddy = new User('Teddy', 'Zeenny');\n  \n    teddy.nickName; // 'Teddy'\n  \n    set(teddy, 'nickName', 'TeddyBear'); // throws Exception\n    // throw new EmberError('Cannot Set: nickName on: <User:ember27288>' );`\n  \n    teddy.firstName; // 'Teddy'\n    ```\n  \n    Classic Class Example:\n  \n    ```javascript\n    import EmberObject, { set } from '@ember/object';\n    import { readOnly } from '@ember/object/computed';\n  \n    let User = EmberObject.extend({\n      firstName: null,\n      lastName: null,\n  \n      nickName: readOnly('firstName')\n    });\n  \n    let teddy = User.create({\n      firstName: 'Teddy',\n      lastName:  'Zeenny'\n    });\n  \n    teddy.nickName; // 'Teddy'\n  \n    set(teddy, 'nickName', 'TeddyBear'); // throws Exception\n    // throw new EmberError('Cannot Set: nickName on: <User:ember27288>' );`\n  \n    teddy.firstName; // 'Teddy'\n    ```\n  \n    @method readOnly\n    @static\n    @for @ember/object/computed\n    @param {String} dependentKey\n    @return {ComputedProperty} computed property which creates a one way computed\n    property to the original value for property.\n    @since 1.5.0\n    @public\n  */\n\n\n  function readOnly(dependentKey) {\n    (true && !(!(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))) && (0, _debug.assert)('You attempted to use @readOnly as a decorator directly, but it requires a `dependentKey` parameter', !(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))));\n    return (0, _metal.alias)(dependentKey).readOnly();\n  }\n  /**\n    Creates a new property that is an alias for another property on an object.\n    Calls to `get` or `set` this property behave as though they were called on the\n    original property, but also print a deprecation warning.\n  \n    Example:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { deprecatingAlias } from '@ember/object/computed';\n  \n    class Hamster {\n      @deprecatingAlias('cavendishCount', {\n        id: 'hamster.deprecate-banana',\n        until: '3.0.0'\n      })\n      bananaCount;\n    }\n  \n    let hamster = new Hamster();\n  \n    set(hamster, 'bananaCount', 5); // Prints a deprecation warning.\n    hamster.cavendishCount; // 5\n    ```\n  \n    Classic Class Example:\n  \n    ```javascript\n    import EmberObject, { set } from '@ember/object';\n    import { deprecatingAlias } from '@ember/object/computed';\n  \n    let Hamster = EmberObject.extend({\n      bananaCount: deprecatingAlias('cavendishCount', {\n        id: 'hamster.deprecate-banana',\n        until: '3.0.0'\n      })\n    });\n  \n    let hamster = Hamster.create();\n  \n    set(hamster, 'bananaCount', 5); // Prints a deprecation warning.\n    hamster.cavendishCount; // 5\n    ```\n  \n    @method deprecatingAlias\n    @static\n    @for @ember/object/computed\n    @param {String} dependentKey\n    @param {Object} options Options for `deprecate`.\n    @return {ComputedProperty} computed property which creates an alias with a\n    deprecation to the original value for property.\n    @since 1.7.0\n    @public\n  */\n\n\n  function deprecatingAlias(dependentKey, options) {\n    (true && !(!(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))) && (0, _debug.assert)('You attempted to use @deprecatingAlias as a decorator directly, but it requires `dependentKey` and `options` parameters', !(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))));\n    return (0, _metal.computed)(dependentKey, {\n      get(key) {\n        (true && !(false) && (0, _debug.deprecate)(`Usage of \\`${key}\\` is deprecated, use \\`${dependentKey}\\` instead.`, false, options));\n        return (0, _metal.get)(this, dependentKey);\n      },\n\n      set(key, value) {\n        (true && !(false) && (0, _debug.deprecate)(`Usage of \\`${key}\\` is deprecated, use \\`${dependentKey}\\` instead.`, false, options));\n        (0, _metal.set)(this, dependentKey, value);\n        return value;\n      }\n\n    });\n  }\n});","define(\"@ember/object/lib/computed/reduce_computed_macros\", [\"exports\", \"@ember/debug\", \"@ember/-internals/metal\", \"@ember/-internals/runtime\"], function (_exports, _debug, _metal, _runtime) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.sum = sum;\n  _exports.max = max;\n  _exports.min = min;\n  _exports.map = map;\n  _exports.mapBy = mapBy;\n  _exports.filter = filter;\n  _exports.filterBy = filterBy;\n  _exports.uniq = uniq;\n  _exports.uniqBy = uniqBy;\n  _exports.intersect = intersect;\n  _exports.setDiff = setDiff;\n  _exports.collect = collect;\n  _exports.sort = sort;\n  _exports.union = void 0;\n\n  /**\n  @module @ember/object\n  */\n  function reduceMacro(dependentKey, callback, initialValue, name) {\n    (true && !(!/[\\[\\]\\{\\}]/g.test(dependentKey)) && (0, _debug.assert)(`Dependent key passed to \\`computed.${name}\\` shouldn't contain brace expanding pattern.`, !/[\\[\\]\\{\\}]/g.test(dependentKey)));\n    return (0, _metal.computed)(`${dependentKey}.[]`, function () {\n      var arr = (0, _metal.get)(this, dependentKey);\n\n      if (arr === null || typeof arr !== 'object') {\n        return initialValue;\n      }\n\n      return arr.reduce(callback, initialValue, this);\n    }).readOnly();\n  }\n\n  function arrayMacro(dependentKey, additionalDependentKeys, callback) {\n    // This is a bit ugly\n    var propertyName;\n\n    if (/@each/.test(dependentKey)) {\n      propertyName = dependentKey.replace(/\\.@each.*$/, '');\n    } else {\n      propertyName = dependentKey;\n      dependentKey += '.[]';\n    }\n\n    return (0, _metal.computed)(dependentKey, ...additionalDependentKeys, function () {\n      var value = (0, _metal.get)(this, propertyName);\n\n      if ((0, _runtime.isArray)(value)) {\n        return (0, _runtime.A)(callback.call(this, value));\n      } else {\n        return (0, _runtime.A)();\n      }\n    }).readOnly();\n  }\n\n  function multiArrayMacro(_dependentKeys, callback, name) {\n    (true && !(_dependentKeys.every(dependentKey => !/[\\[\\]\\{\\}]/g.test(dependentKey))) && (0, _debug.assert)(`Dependent keys passed to \\`computed.${name}\\` shouldn't contain brace expanding pattern.`, _dependentKeys.every(dependentKey => !/[\\[\\]\\{\\}]/g.test(dependentKey))));\n\n    var dependentKeys = _dependentKeys.map(key => `${key}.[]`);\n\n    return (0, _metal.computed)(...dependentKeys, function () {\n      return (0, _runtime.A)(callback.call(this, _dependentKeys));\n    }).readOnly();\n  }\n  /**\n    A computed property that returns the sum of the values in the dependent array.\n  \n    Example:\n  \n    ```javascript\n    import { sum } from '@ember/object/computed';\n  \n    class Invoice {\n      lineItems = [1.00, 2.50, 9.99];\n  \n      @sum('lineItems') total;\n    }\n  \n    let invoice = new Invoice();\n  \n    invoice.total; // 13.49\n    ```\n  \n    Classic Class Example:\n  \n    ```javascript\n    import EmberObject from '@ember/object';\n    import { sum } from '@ember/object/computed';\n  \n    let Invoice = EmberObject.extend({\n      lineItems: [1.00, 2.50, 9.99],\n  \n      total: sum('lineItems')\n    })\n  \n    let invoice = Invoice.create();\n  \n    invoice.total; // 13.49\n    ```\n  \n    @method sum\n    @for @ember/object/computed\n    @static\n    @param {String} dependentKey\n    @return {ComputedProperty} computes the sum of all values in the\n    dependentKey's array\n    @since 1.4.0\n    @public\n  */\n\n\n  function sum(dependentKey) {\n    (true && !(!(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))) && (0, _debug.assert)('You attempted to use @sum as a decorator directly, but it requires a `dependentKey` parameter', !(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))));\n    return reduceMacro(dependentKey, (sum, item) => sum + item, 0, 'sum');\n  }\n  /**\n    A computed property that calculates the maximum value in the dependent array.\n    This will return `-Infinity` when the dependent array is empty.\n  \n    Example:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { mapBy, max } from '@ember/object/computed';\n  \n    class Person {\n      children = [];\n  \n      @mapBy('children', 'age') childAges;\n      @max('childAges') maxChildAge;\n    }\n  \n    let lordByron = new Person();\n  \n    lordByron.maxChildAge; // -Infinity\n  \n    set(lordByron, 'children', [\n      {\n        name: 'Augusta Ada Byron',\n        age: 7\n      }\n    ]);\n    lordByron.maxChildAge; // 7\n  \n    set(lordByron, 'children', [\n      ...lordByron.children,\n      {\n        name: 'Allegra Byron',\n        age: 5\n      }, {\n        name: 'Elizabeth Medora Leigh',\n        age: 8\n      }\n    ]);\n    lordByron.maxChildAge; // 8\n    ```\n  \n    Classic Class Example:\n  \n    ```javascript\n    import EmberObject, { set } from '@ember/object';\n    import { mapBy, max } from '@ember/object/computed';\n  \n    let Person = EmberObject.extend({\n      childAges: mapBy('children', 'age'),\n      maxChildAge: max('childAges')\n    });\n  \n    let lordByron = Person.create({ children: [] });\n  \n    lordByron.maxChildAge; // -Infinity\n  \n    set(lordByron, 'children', [\n      {\n        name: 'Augusta Ada Byron',\n        age: 7\n      }\n    ]);\n    lordByron.maxChildAge; // 7\n  \n    set(lordByron, 'children', [\n      ...lordByron.children,\n      {\n        name: 'Allegra Byron',\n        age: 5\n      }, {\n        name: 'Elizabeth Medora Leigh',\n        age: 8\n      }\n    ]);\n    lordByron.maxChildAge; // 8\n    ```\n  \n    If the types of the arguments are not numbers, they will be converted to\n    numbers and the type of the return value will always be `Number`. For example,\n    the max of a list of Date objects will be the highest timestamp as a `Number`.\n    This behavior is consistent with `Math.max`.\n  \n    @method max\n    @for @ember/object/computed\n    @static\n    @param {String} dependentKey\n    @return {ComputedProperty} computes the largest value in the dependentKey's\n    array\n    @public\n  */\n\n\n  function max(dependentKey) {\n    (true && !(!(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))) && (0, _debug.assert)('You attempted to use @max as a decorator directly, but it requires a `dependentKey` parameter', !(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))));\n    return reduceMacro(dependentKey, (max, item) => Math.max(max, item), -Infinity, 'max');\n  }\n  /**\n    A computed property that calculates the minimum value in the dependent array.\n    This will return `Infinity` when the dependent array is empty.\n  \n    Example:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { mapBy, min } from '@ember/object/computed';\n  \n    class Person {\n      children = [];\n  \n      @mapBy('children', 'age') childAges;\n      @min('childAges') minChildAge;\n    }\n  \n    let lordByron = Person.create({ children: [] });\n  \n    lordByron.minChildAge; // Infinity\n  \n    set(lordByron, 'children', [\n      {\n        name: 'Augusta Ada Byron',\n        age: 7\n      }\n    ]);\n    lordByron.minChildAge; // 7\n  \n    set(lordByron, 'children', [\n      ...lordByron.children,\n      {\n        name: 'Allegra Byron',\n        age: 5\n      }, {\n        name: 'Elizabeth Medora Leigh',\n        age: 8\n      }\n    ]);\n    lordByron.minChildAge; // 5\n    ```\n  \n    Classic Class Example:\n  \n    ```javascript\n    import EmberObject, { set } from '@ember/object';\n    import { mapBy, min } from '@ember/object/computed';\n  \n    let Person = EmberObject.extend({\n      childAges: mapBy('children', 'age'),\n      minChildAge: min('childAges')\n    });\n  \n    let lordByron = Person.create({ children: [] });\n  \n    lordByron.minChildAge; // Infinity\n  \n    set(lordByron, 'children', [\n      {\n        name: 'Augusta Ada Byron',\n        age: 7\n      }\n    ]);\n    lordByron.minChildAge; // 7\n  \n    set(lordByron, 'children', [\n      ...lordByron.children,\n      {\n        name: 'Allegra Byron',\n        age: 5\n      }, {\n        name: 'Elizabeth Medora Leigh',\n        age: 8\n      }\n    ]);\n    lordByron.minChildAge; // 5\n    ```\n  \n    If the types of the arguments are not numbers, they will be converted to\n    numbers and the type of the return value will always be `Number`. For example,\n    the min of a list of Date objects will be the lowest timestamp as a `Number`.\n    This behavior is consistent with `Math.min`.\n  \n    @method min\n    @for @ember/object/computed\n    @static\n    @param {String} dependentKey\n    @return {ComputedProperty} computes the smallest value in the dependentKey's array\n    @public\n  */\n\n\n  function min(dependentKey) {\n    (true && !(!(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))) && (0, _debug.assert)('You attempted to use @min as a decorator directly, but it requires a `dependentKey` parameter', !(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))));\n    return reduceMacro(dependentKey, (min, item) => Math.min(min, item), Infinity, 'min');\n  }\n  /**\n    Returns an array mapped via the callback\n  \n    The callback method you provide should have the following signature:\n    - `item` is the current item in the iteration.\n    - `index` is the integer index of the current item in the iteration.\n  \n    ```javascript\n    function mapCallback(item, index);\n    ```\n  \n    Example:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { map } from '@ember/object/computed';\n  \n    class Hamster {\n      constructor(chores) {\n        set(this, 'chores', chores);\n      }\n  \n      @map('chores', function(chore, index) {\n        return `${chore.toUpperCase()}!`;\n      })\n      excitingChores;\n    });\n  \n    let hamster = new Hamster(['clean', 'write more unit tests']);\n  \n    hamster.excitingChores; // ['CLEAN!', 'WRITE MORE UNIT TESTS!']\n    ```\n  \n    Classic Class Example:\n  \n    ```javascript\n    import EmberObject from '@ember/object';\n    import { map } from '@ember/object/computed';\n  \n    let Hamster = EmberObject.extend({\n      excitingChores: map('chores', function(chore, index) {\n        return `${chore.toUpperCase()}!`;\n      })\n    });\n  \n    let hamster = Hamster.create({\n      chores: ['clean', 'write more unit tests']\n    });\n  \n    hamster.excitingChores; // ['CLEAN!', 'WRITE MORE UNIT TESTS!']\n    ```\n  \n    You can optionally pass an array of additional dependent keys as the second\n    parameter to the macro, if your map function relies on any external values:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { map } from '@ember/object/computed';\n  \n    class Hamster {\n      shouldUpperCase = false;\n  \n      constructor(chores) {\n        set(this, 'chores', chores);\n      }\n  \n      @map('chores', ['shouldUpperCase'], function(chore, index) {\n        if (this.shouldUpperCase) {\n          return `${chore.toUpperCase()}!`;\n        } else {\n          return `${chore}!`;\n        }\n      })\n      excitingChores;\n    }\n  \n    let hamster = new Hamster(['clean', 'write more unit tests']);\n  \n    hamster.excitingChores; // ['clean!', 'write more unit tests!']\n  \n    set(hamster, 'shouldUpperCase', true);\n    hamster.excitingChores; // ['CLEAN!', 'WRITE MORE UNIT TESTS!']\n    ```\n  \n    @method map\n    @for @ember/object/computed\n    @static\n    @param {String} dependentKey\n    @param {Array} [additionalDependentKeys] optional array of additional\n    dependent keys\n    @param {Function} callback\n    @return {ComputedProperty} an array mapped via the callback\n    @public\n  */\n\n\n  function map(dependentKey, additionalDependentKeys, callback) {\n    (true && !(!(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))) && (0, _debug.assert)('You attempted to use @map as a decorator directly, but it requires atleast `dependentKey` and `callback` parameters', !(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))));\n\n    if (callback === undefined && typeof additionalDependentKeys === 'function') {\n      callback = additionalDependentKeys;\n      additionalDependentKeys = [];\n    }\n\n    (true && !(typeof callback === 'function') && (0, _debug.assert)('The final parameter provided to map must be a callback function', typeof callback === 'function'));\n    (true && !(Array.isArray(additionalDependentKeys)) && (0, _debug.assert)('The second parameter provided to map must either be the callback or an array of additional dependent keys', Array.isArray(additionalDependentKeys)));\n    return arrayMacro(dependentKey, additionalDependentKeys, function (value) {\n      return value.map(callback, this);\n    });\n  }\n  /**\n    Returns an array mapped to the specified key.\n  \n    Example:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { mapBy } from '@ember/object/computed';\n  \n    class Person {\n      children = [];\n  \n      @mapBy('children', 'age') childAges;\n    }\n  \n    let lordByron = new Person();\n  \n    lordByron.childAges; // []\n  \n    set(lordByron, 'children', [\n      {\n        name: 'Augusta Ada Byron',\n        age: 7\n      }\n    ]);\n    lordByron.childAges; // [7]\n  \n    set(lordByron, 'children', [\n      ...lordByron.children,\n      {\n        name: 'Allegra Byron',\n        age: 5\n      }, {\n        name: 'Elizabeth Medora Leigh',\n        age: 8\n      }\n    ]);\n    lordByron.childAges; // [7, 5, 8]\n    ```\n  \n    Classic Class Example:\n  \n    ```javascript\n    import EmberObject, { set } from '@ember/object';\n    import { mapBy } from '@ember/object/computed';\n  \n    let Person = EmberObject.extend({\n      childAges: mapBy('children', 'age')\n    });\n  \n    let lordByron = Person.create({ children: [] });\n  \n    lordByron.childAges; // []\n  \n    set(lordByron, 'children', [\n      {\n        name: 'Augusta Ada Byron',\n        age: 7\n      }\n    ]);\n    lordByron.childAges; // [7]\n  \n    set(lordByron, 'children', [\n      ...lordByron.children,\n      {\n        name: 'Allegra Byron',\n        age: 5\n      }, {\n        name: 'Elizabeth Medora Leigh',\n        age: 8\n      }\n    ]);\n    lordByron.childAges; // [7, 5, 8]\n    ```\n  \n    @method mapBy\n    @for @ember/object/computed\n    @static\n    @param {String} dependentKey\n    @param {String} propertyKey\n    @return {ComputedProperty} an array mapped to the specified key\n    @public\n  */\n\n\n  function mapBy(dependentKey, propertyKey) {\n    (true && !(!(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))) && (0, _debug.assert)('You attempted to use @mapBy as a decorator directly, but it requires `dependentKey` and `propertyKey` parameters', !(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))));\n    (true && !(typeof propertyKey === 'string') && (0, _debug.assert)('`computed.mapBy` expects a property string for its second argument, ' + 'perhaps you meant to use \"map\"', typeof propertyKey === 'string'));\n    (true && !(!/[\\[\\]\\{\\}]/g.test(dependentKey)) && (0, _debug.assert)(`Dependent key passed to \\`computed.mapBy\\` shouldn't contain brace expanding pattern.`, !/[\\[\\]\\{\\}]/g.test(dependentKey)));\n    return map(`${dependentKey}.@each.${propertyKey}`, item => (0, _metal.get)(item, propertyKey));\n  }\n  /**\n    Filters the array by the callback.\n  \n    The callback method you provide should have the following signature:\n    - `item` is the current item in the iteration.\n    - `index` is the integer index of the current item in the iteration.\n    - `array` is the dependant array itself.\n  \n    ```javascript\n    function filterCallback(item, index, array);\n    ```\n  \n    Example:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { filter } from '@ember/object/computed';\n  \n    class Hamster {\n      constructor(chores) {\n        set(this, 'chores', chores);\n      }\n  \n      @filter('chores', function(chore, index, array) {\n        return !chore.done;\n      })\n      remainingChores;\n    }\n  \n    let hamster = Hamster.create([\n      { name: 'cook', done: true },\n      { name: 'clean', done: true },\n      { name: 'write more unit tests', done: false }\n    ]);\n  \n    hamster.remainingChores; // [{name: 'write more unit tests', done: false}]\n    ```\n  \n    Classic Class Example:\n  \n    ```javascript\n    import EmberObject from '@ember/object';\n    import { filter } from '@ember/object/computed';\n  \n    let Hamster = EmberObject.extend({\n      remainingChores: filter('chores', function(chore, index, array) {\n        return !chore.done;\n      })\n    });\n  \n    let hamster = Hamster.create({\n      chores: [\n        { name: 'cook', done: true },\n        { name: 'clean', done: true },\n        { name: 'write more unit tests', done: false }\n      ]\n    });\n  \n    hamster.remainingChores; // [{name: 'write more unit tests', done: false}]\n    ```\n  \n    You can also use `@each.property` in your dependent key, the callback will\n    still use the underlying array:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { filter } from '@ember/object/computed';\n  \n    class Hamster {\n      constructor(chores) {\n        set(this, 'chores', chores);\n      }\n  \n      @filter('chores.@each.done', function(chore, index, array) {\n        return !chore.done;\n      })\n      remainingChores;\n    }\n  \n    let hamster = new Hamster([\n      { name: 'cook', done: true },\n      { name: 'clean', done: true },\n      { name: 'write more unit tests', done: false }\n    ]);\n    hamster.remainingChores; // [{name: 'write more unit tests', done: false}]\n  \n    set(hamster.chores[2], 'done', true);\n    hamster.remainingChores; // []\n    ```\n  \n    Finally, you can optionally pass an array of additional dependent keys as the\n    second parameter to the macro, if your filter function relies on any external\n    values:\n  \n    ```javascript\n    import { filter } from '@ember/object/computed';\n  \n    class Hamster {\n      constructor(chores) {\n        set(this, 'chores', chores);\n      }\n  \n      doneKey = 'finished';\n  \n      @filter('chores', ['doneKey'], function(chore, index, array) {\n        return !chore[this.doneKey];\n      })\n      remainingChores;\n    }\n  \n    let hamster = new Hamster([\n      { name: 'cook', finished: true },\n      { name: 'clean', finished: true },\n      { name: 'write more unit tests', finished: false }\n    ]);\n  \n    hamster.remainingChores; // [{name: 'write more unit tests', finished: false}]\n    ```\n  \n    @method filter\n    @for @ember/object/computed\n    @static\n    @param {String} dependentKey\n    @param {Array} [additionalDependentKeys] optional array of additional dependent keys\n    @param {Function} callback\n    @return {ComputedProperty} the filtered array\n    @public\n  */\n\n\n  function filter(dependentKey, additionalDependentKeys, callback) {\n    (true && !(!(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))) && (0, _debug.assert)('You attempted to use @filter as a decorator directly, but it requires atleast `dependentKey` and `callback` parameters', !(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))));\n\n    if (callback === undefined && typeof additionalDependentKeys === 'function') {\n      callback = additionalDependentKeys;\n      additionalDependentKeys = [];\n    }\n\n    (true && !(typeof callback === 'function') && (0, _debug.assert)('The final parameter provided to filter must be a callback function', typeof callback === 'function'));\n    (true && !(Array.isArray(additionalDependentKeys)) && (0, _debug.assert)('The second parameter provided to filter must either be the callback or an array of additional dependent keys', Array.isArray(additionalDependentKeys)));\n    return arrayMacro(dependentKey, additionalDependentKeys, function (value) {\n      return value.filter(callback, this);\n    });\n  }\n  /**\n    Filters the array by the property and value.\n  \n    Example:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { filterBy } from '@ember/object/computed';\n  \n    class Hamster {\n      constructor(chores) {\n        set(this, 'chores', chores);\n      }\n  \n      @filterBy('chores', 'done', false) remainingChores;\n    }\n  \n    let hamster = new Hamster([\n      { name: 'cook', done: true },\n      { name: 'clean', done: true },\n      { name: 'write more unit tests', done: false }\n    ]);\n  \n    hamster.remainingChores; // [{ name: 'write more unit tests', done: false }]\n    ```\n  \n    Classic Class Example:\n  \n    ```javascript\n    import EmberObject from '@ember/object';\n    import { filterBy } from '@ember/object/computed';\n  \n    let Hamster = EmberObject.extend({\n      remainingChores: filterBy('chores', 'done', false)\n    });\n  \n    let hamster = Hamster.create({\n      chores: [\n        { name: 'cook', done: true },\n        { name: 'clean', done: true },\n        { name: 'write more unit tests', done: false }\n      ]\n    });\n  \n    hamster.remainingChores; // [{ name: 'write more unit tests', done: false }]\n    ```\n  \n    @method filterBy\n    @for @ember/object/computed\n    @static\n    @param {String} dependentKey\n    @param {String} propertyKey\n    @param {*} value\n    @return {ComputedProperty} the filtered array\n    @public\n  */\n\n\n  function filterBy(dependentKey, propertyKey, value) {\n    (true && !(!(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))) && (0, _debug.assert)('You attempted to use @filterBy as a decorator directly, but it requires atleast `dependentKey` and `propertyKey` parameters', !(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))));\n    (true && !(!/[\\[\\]\\{\\}]/g.test(dependentKey)) && (0, _debug.assert)(`Dependent key passed to \\`computed.filterBy\\` shouldn't contain brace expanding pattern.`, !/[\\[\\]\\{\\}]/g.test(dependentKey)));\n    var callback;\n\n    if (arguments.length === 2) {\n      callback = item => (0, _metal.get)(item, propertyKey);\n    } else {\n      callback = item => (0, _metal.get)(item, propertyKey) === value;\n    }\n\n    return filter(`${dependentKey}.@each.${propertyKey}`, callback);\n  }\n  /**\n    A computed property which returns a new array with all the unique elements\n    from one or more dependent arrays.\n  \n    Example:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { uniq } from '@ember/object/computed';\n  \n    class Hamster {\n      constructor(fruits) {\n        set(this, 'fruits', fruits);\n      }\n  \n      @uniq('fruits') uniqueFruits;\n    }\n  \n    let hamster = new Hamster([\n      'banana',\n      'grape',\n      'kale',\n      'banana'\n    ]);\n  \n    hamster.uniqueFruits; // ['banana', 'grape', 'kale']\n    ```\n  \n    Classic Class Example:\n  \n    ```javascript\n    import EmberObject from '@ember/object';\n    import { uniq } from '@ember/object/computed';\n  \n    let Hamster = EmberObject.extend({\n      uniqueFruits: uniq('fruits')\n    });\n  \n    let hamster = Hamster.create({\n      fruits: [\n        'banana',\n        'grape',\n        'kale',\n        'banana'\n      ]\n    });\n  \n    hamster.uniqueFruits; // ['banana', 'grape', 'kale']\n    ```\n  \n    @method uniq\n    @for @ember/object/computed\n    @static\n    @param {String} propertyKey*\n    @return {ComputedProperty} computes a new array with all the\n    unique elements from the dependent array\n    @public\n  */\n\n\n  function uniq(...args) {\n    (true && !(!(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))) && (0, _debug.assert)('You attempted to use @uniq/@union as a decorator directly, but it requires atleast one dependent key parameter', !(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))));\n    return multiArrayMacro(args, function (dependentKeys) {\n      var uniq = (0, _runtime.A)();\n      var seen = new Set();\n      dependentKeys.forEach(dependentKey => {\n        var value = (0, _metal.get)(this, dependentKey);\n\n        if ((0, _runtime.isArray)(value)) {\n          value.forEach(item => {\n            if (!seen.has(item)) {\n              seen.add(item);\n              uniq.push(item);\n            }\n          });\n        }\n      });\n      return uniq;\n    }, 'uniq');\n  }\n  /**\n    A computed property which returns a new array with all the unique elements\n    from an array, with uniqueness determined by specific key.\n  \n    Example:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { uniqBy } from '@ember/object/computed';\n  \n    class Hamster {\n      constructor(fruits) {\n        set(this, 'fruits', fruits);\n      }\n  \n      @uniqBy('fruits', 'id') uniqueFruits;\n    }\n  \n    let hamster = new Hamster([\n      { id: 1, 'banana' },\n      { id: 2, 'grape' },\n      { id: 3, 'peach' },\n      { id: 1, 'banana' }\n    ]);\n  \n    hamster.uniqueFruits; // [ { id: 1, 'banana' }, { id: 2, 'grape' }, { id: 3, 'peach' }]\n    ```\n  \n    Classic Class Example:\n  \n    ```javascript\n    import EmberObject from '@ember/object';\n    import { uniqBy } from '@ember/object/computed';\n  \n    let Hamster = EmberObject.extend({\n      uniqueFruits: uniqBy('fruits', 'id')\n    });\n  \n    let hamster = Hamster.create({\n      fruits: [\n        { id: 1, 'banana' },\n        { id: 2, 'grape' },\n        { id: 3, 'peach' },\n        { id: 1, 'banana' }\n      ]\n    });\n  \n    hamster.uniqueFruits; // [ { id: 1, 'banana' }, { id: 2, 'grape' }, { id: 3, 'peach' }]\n    ```\n  \n    @method uniqBy\n    @for @ember/object/computed\n    @static\n    @param {String} dependentKey\n    @param {String} propertyKey\n    @return {ComputedProperty} computes a new array with all the\n    unique elements from the dependent array\n    @public\n  */\n\n\n  function uniqBy(dependentKey, propertyKey) {\n    (true && !(!(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))) && (0, _debug.assert)('You attempted to use @uniqBy as a decorator directly, but it requires `dependentKey` and `propertyKey` parameters', !(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))));\n    (true && !(!/[\\[\\]\\{\\}]/g.test(dependentKey)) && (0, _debug.assert)(`Dependent key passed to \\`computed.uniqBy\\` shouldn't contain brace expanding pattern.`, !/[\\[\\]\\{\\}]/g.test(dependentKey)));\n    return (0, _metal.computed)(`${dependentKey}.[]`, function () {\n      var list = (0, _metal.get)(this, dependentKey);\n      return (0, _runtime.isArray)(list) ? (0, _runtime.uniqBy)(list, propertyKey) : (0, _runtime.A)();\n    }).readOnly();\n  }\n  /**\n    A computed property which returns a new array with all the unique elements\n    from one or more dependent arrays.\n  \n    Example:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { union } from '@ember/object/computed';\n  \n    class Hamster {\n      constructor(fruits, vegetables) {\n        set(this, 'fruits', fruits);\n        set(this, 'vegetables', vegetables);\n      }\n  \n      @union('fruits', 'vegetables') ediblePlants;\n    });\n  \n    let hamster = new, Hamster(\n      [\n        'banana',\n        'grape',\n        'kale',\n        'banana',\n        'tomato'\n      ],\n      [\n        'tomato',\n        'carrot',\n        'lettuce'\n      ]\n    );\n  \n    hamster.uniqueFruits; // ['banana', 'grape', 'kale', 'tomato', 'carrot', 'lettuce']\n    ```\n  \n    Classic Class Example:\n  \n    ```javascript\n    import EmberObject from '@ember/object';\n    import { union } from '@ember/object/computed';\n  \n    let Hamster = EmberObject.extend({\n      uniqueFruits: union('fruits', 'vegetables')\n    });\n  \n    let hamster = Hamster.create({\n      fruits: [\n        'banana',\n        'grape',\n        'kale',\n        'banana',\n        'tomato'\n      ],\n      vegetables: [\n        'tomato',\n        'carrot',\n        'lettuce'\n      ]\n    });\n  \n    hamster.uniqueFruits; // ['banana', 'grape', 'kale', 'tomato', 'carrot', 'lettuce']\n    ```\n  \n    @method union\n    @for @ember/object/computed\n    @static\n    @param {String} propertyKey*\n    @return {ComputedProperty} computes a new array with all the unique elements\n    from one or more dependent arrays.\n    @public\n  */\n\n\n  var union = uniq;\n  /**\n    A computed property which returns a new array with all the elements\n    two or more dependent arrays have in common.\n  \n    Example:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { intersect } from '@ember/object/computed';\n  \n    class FriendGroups {\n      constructor(adaFriends, charlesFriends) {\n        set(this, 'adaFriends', adaFriends);\n        set(this, 'charlesFriends', charlesFriends);\n      }\n  \n      @intersect('adaFriends', 'charlesFriends') friendsInCommon;\n    }\n  \n    let groups = new FriendGroups(\n      ['Charles Babbage', 'John Hobhouse', 'William King', 'Mary Somerville'],\n      ['William King', 'Mary Somerville', 'Ada Lovelace', 'George Peacock']\n    );\n  \n    groups.friendsInCommon; // ['William King', 'Mary Somerville']\n    ```\n  \n    Classic Class Example:\n  \n    ```javascript\n    import EmberObject from '@ember/object';\n    import { intersect } from '@ember/object/computed';\n  \n    let FriendGroups = EmberObject.extend({\n      friendsInCommon: intersect('adaFriends', 'charlesFriends')\n    });\n  \n    let groups = FriendGroups.create({\n      adaFriends: ['Charles Babbage', 'John Hobhouse', 'William King', 'Mary Somerville'],\n      charlesFriends: ['William King', 'Mary Somerville', 'Ada Lovelace', 'George Peacock']\n    });\n  \n    groups.friendsInCommon; // ['William King', 'Mary Somerville']\n    ```\n  \n    @method intersect\n    @for @ember/object/computed\n    @static\n    @param {String} propertyKey*\n    @return {ComputedProperty} computes a new array with all the duplicated\n    elements from the dependent arrays\n    @public\n  */\n\n  _exports.union = union;\n\n  function intersect(...args) {\n    (true && !(!(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))) && (0, _debug.assert)('You attempted to use @intersect as a decorator directly, but it requires atleast one dependent key parameter', !(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))));\n    return multiArrayMacro(args, function (dependentKeys) {\n      var arrays = dependentKeys.map(dependentKey => {\n        var array = (0, _metal.get)(this, dependentKey);\n        return (0, _runtime.isArray)(array) ? array : [];\n      });\n      var results = arrays.pop().filter(candidate => {\n        for (var i = 0; i < arrays.length; i++) {\n          var found = false;\n          var array = arrays[i];\n\n          for (var j = 0; j < array.length; j++) {\n            if (array[j] === candidate) {\n              found = true;\n              break;\n            }\n          }\n\n          if (found === false) {\n            return false;\n          }\n        }\n\n        return true;\n      });\n      return (0, _runtime.A)(results);\n    }, 'intersect');\n  }\n  /**\n    A computed property which returns a new array with all the properties from the\n    first dependent array that are not in the second dependent array.\n  \n    Example:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { setDiff } from '@ember/object/computed';\n  \n    class Hamster {\n      constructor(likes, fruits) {\n        set(this, 'likes', likes);\n        set(this, 'fruits', fruits);\n      }\n  \n      @setDiff('likes', 'fruits') wants;\n    }\n  \n    let hamster = new Hamster(\n      [\n        'banana',\n        'grape',\n        'kale'\n      ],\n      [\n        'grape',\n        'kale',\n      ]\n    );\n  \n    hamster.wants; // ['banana']\n    ```\n  \n    Classic Class Example:\n  \n    ```javascript\n    import EmberObject from '@ember/object';\n    import { setDiff } from '@ember/object/computed';\n  \n    let Hamster = EmberObject.extend({\n      wants: setDiff('likes', 'fruits')\n    });\n  \n    let hamster = Hamster.create({\n      likes: [\n        'banana',\n        'grape',\n        'kale'\n      ],\n      fruits: [\n        'grape',\n        'kale',\n      ]\n    });\n  \n    hamster.wants; // ['banana']\n    ```\n  \n    @method setDiff\n    @for @ember/object/computed\n    @static\n    @param {String} setAProperty\n    @param {String} setBProperty\n    @return {ComputedProperty} computes a new array with all the items from the\n    first dependent array that are not in the second dependent array\n    @public\n  */\n\n\n  function setDiff(setAProperty, setBProperty) {\n    (true && !(!(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))) && (0, _debug.assert)('You attempted to use @setDiff as a decorator directly, but it requires atleast one dependent key parameter', !(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))));\n    (true && !(arguments.length === 2) && (0, _debug.assert)('`computed.setDiff` requires exactly two dependent arrays.', arguments.length === 2));\n    (true && !(!/[\\[\\]\\{\\}]/g.test(setAProperty) && !/[\\[\\]\\{\\}]/g.test(setBProperty)) && (0, _debug.assert)(`Dependent keys passed to \\`computed.setDiff\\` shouldn't contain brace expanding pattern.`, !/[\\[\\]\\{\\}]/g.test(setAProperty) && !/[\\[\\]\\{\\}]/g.test(setBProperty)));\n    return (0, _metal.computed)(`${setAProperty}.[]`, `${setBProperty}.[]`, function () {\n      var setA = (0, _metal.get)(this, setAProperty);\n      var setB = (0, _metal.get)(this, setBProperty);\n\n      if (!(0, _runtime.isArray)(setA)) {\n        return (0, _runtime.A)();\n      }\n\n      if (!(0, _runtime.isArray)(setB)) {\n        return (0, _runtime.A)(setA);\n      }\n\n      return setA.filter(x => setB.indexOf(x) === -1);\n    }).readOnly();\n  }\n  /**\n    A computed property that returns the array of values for the provided\n    dependent properties.\n  \n    Example:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { collect } from '@ember/object/computed';\n  \n    class Hamster {\n      @collect('hat', 'shirt') clothes;\n    }\n  \n    let hamster = new Hamster();\n  \n    hamster.clothes; // [null, null]\n  \n    set(hamster, 'hat', 'Camp Hat');\n    set(hamster, 'shirt', 'Camp Shirt');\n    hamster.clothes; // ['Camp Hat', 'Camp Shirt']\n    ```\n  \n    Classic Class Example:\n  \n    ```javascript\n    import EmberObject, { set } from '@ember/object';\n    import { collect } from '@ember/object/computed';\n  \n    let Hamster = EmberObject.extend({\n      clothes: collect('hat', 'shirt')\n    });\n  \n    let hamster = Hamster.create();\n  \n    hamster.clothes; // [null, null]\n  \n    set(hamster, 'hat', 'Camp Hat');\n    set(hamster, 'shirt', 'Camp Shirt');\n    hamster.clothes; // ['Camp Hat', 'Camp Shirt']\n    ```\n  \n    @method collect\n    @for @ember/object/computed\n    @static\n    @param {String} dependentKey*\n    @return {ComputedProperty} computed property which maps values of all passed\n    in properties to an array.\n    @public\n  */\n\n\n  function collect(...dependentKeys) {\n    (true && !(!(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))) && (0, _debug.assert)('You attempted to use @collect as a decorator directly, but it requires atleast one dependent key parameter', !(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))));\n    return multiArrayMacro(dependentKeys, function () {\n      var res = dependentKeys.map(key => {\n        var val = (0, _metal.get)(this, key);\n        return val === undefined ? null : val;\n      });\n      return (0, _runtime.A)(res);\n    }, 'collect');\n  }\n  /**\n    A computed property which returns a new array with all the properties from the\n    first dependent array sorted based on a property or sort function. The sort\n    macro can be used in two different ways:\n  \n    1. By providing a sort callback function\n    2. By providing an array of keys to sort the array\n  \n    In the first form, the callback method you provide should have the following\n    signature:\n  \n    ```javascript\n    function sortCallback(itemA, itemB);\n    ```\n  \n    - `itemA` the first item to compare.\n    - `itemB` the second item to compare.\n  \n    This function should return negative number (e.g. `-1`) when `itemA` should\n    come before `itemB`. It should return positive number (e.g. `1`) when `itemA`\n    should come after `itemB`. If the `itemA` and `itemB` are equal this function\n    should return `0`.\n  \n    Therefore, if this function is comparing some numeric values, simple `itemA -\n    itemB` or `itemA.get( 'foo' ) - itemB.get( 'foo' )` can be used instead of\n    series of `if`.\n  \n    Example:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { sort } from '@ember/object/computed';\n  \n    class ToDoList {\n      constructor(todos) {\n        set(this, 'todos', todos);\n      }\n  \n      // using a custom sort function\n      @sort('todos', function(a, b){\n        if (a.priority > b.priority) {\n          return 1;\n        } else if (a.priority < b.priority) {\n          return -1;\n        }\n  \n        return 0;\n      })\n      priorityTodos;\n    }\n  \n    let todoList = new ToDoList([\n      { name: 'Unit Test', priority: 2 },\n      { name: 'Documentation', priority: 3 },\n      { name: 'Release', priority: 1 }\n    ]);\n  \n    todoList.priorityTodos; // [{ name:'Release', priority:1 }, { name:'Unit Test', priority:2 }, { name:'Documentation', priority:3 }]\n    ```\n  \n    Classic Class Example:\n  \n    ```javascript\n    import EmberObject from '@ember/object';\n    import { sort } from '@ember/object/computed';\n  \n    let ToDoList = EmberObject.extend({\n      // using a custom sort function\n      priorityTodos: sort('todos', function(a, b){\n        if (a.priority > b.priority) {\n          return 1;\n        } else if (a.priority < b.priority) {\n          return -1;\n        }\n  \n        return 0;\n      })\n    });\n  \n    let todoList = ToDoList.create({\n      todos: [\n        { name: 'Unit Test', priority: 2 },\n        { name: 'Documentation', priority: 3 },\n        { name: 'Release', priority: 1 }\n      ]\n    });\n  \n    todoList.priorityTodos; // [{ name:'Release', priority:1 }, { name:'Unit Test', priority:2 }, { name:'Documentation', priority:3 }]\n    ```\n  \n    You can also optionally pass an array of additional dependent keys as the\n    second parameter, if your sort function is dependent on additional values that\n    could changes:\n  \n    ```js\n    import EmberObject, { set } from '@ember/object';\n    import { sort } from '@ember/object/computed';\n  \n    class ToDoList {\n      sortKey = 'priority';\n  \n      constructor(todos) {\n        set(this, 'todos', todos);\n      }\n  \n      // using a custom sort function\n      @sort('todos', ['sortKey'], function(a, b){\n        if (a[this.sortKey] > b[this.sortKey]) {\n          return 1;\n        } else if (a[this.sortKey] < b[this.sortKey]) {\n          return -1;\n        }\n  \n        return 0;\n      })\n      sortedTodos;\n    });\n  \n    let todoList = new ToDoList([\n      { name: 'Unit Test', priority: 2 },\n      { name: 'Documentation', priority: 3 },\n      { name: 'Release', priority: 1 }\n    ]);\n  \n    todoList.priorityTodos; // [{ name:'Release', priority:1 }, { name:'Unit Test', priority:2 }, { name:'Documentation', priority:3 }]\n    ```\n  \n    In the second form, you should provide the key of the array of sort values as\n    the second parameter:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { sort } from '@ember/object/computed';\n  \n    class ToDoList {\n      constructor(todos) {\n        set(this, 'todos', todos);\n      }\n  \n      // using standard ascending sort\n      todosSorting = ['name'];\n      @sort('todos', 'todosSorting') sortedTodos;\n  \n      // using descending sort\n      todosSortingDesc = ['name:desc'];\n      @sort('todos', 'todosSortingDesc') sortedTodosDesc;\n    }\n  \n    let todoList = new ToDoList([\n      { name: 'Unit Test', priority: 2 },\n      { name: 'Documentation', priority: 3 },\n      { name: 'Release', priority: 1 }\n    ]);\n  \n    todoList.sortedTodos; // [{ name:'Documentation', priority:3 }, { name:'Release', priority:1 }, { name:'Unit Test', priority:2 }]\n    todoList.sortedTodosDesc; // [{ name:'Unit Test', priority:2 }, { name:'Release', priority:1 }, { name:'Documentation', priority:3 }]\n    ```\n  \n    @method sort\n    @for @ember/object/computed\n    @static\n    @param {String} itemsKey\n    @param {String|Function|Array} sortDefinitionOrDependentKeys The key of the sort definition (an array of sort properties),\n    the sort function, or an array of additional dependent keys\n    @param {Function?} sortDefinition the sort function (when used with additional dependent keys)\n    @return {ComputedProperty} computes a new sorted array based on the sort\n    property array or callback function\n    @public\n  */\n\n\n  function sort(itemsKey, additionalDependentKeys, sortDefinition) {\n    (true && !(!(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))) && (0, _debug.assert)('You attempted to use @sort as a decorator directly, but it requires atleast an `itemsKey` parameter', !(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))));\n\n    if (true\n    /* DEBUG */\n    ) {\n      var argumentsValid = false;\n\n      if (arguments.length === 2) {\n        argumentsValid = typeof itemsKey === 'string' && (typeof additionalDependentKeys === 'string' || typeof additionalDependentKeys === 'function');\n      }\n\n      if (arguments.length === 3) {\n        argumentsValid = typeof itemsKey === 'string' && Array.isArray(additionalDependentKeys) && typeof sortDefinition === 'function';\n      }\n\n      (true && !(argumentsValid) && (0, _debug.assert)('`computed.sort` can either be used with an array of sort properties or with a sort function. If used with an array of sort properties, it must receive exactly two arguments: the key of the array to sort, and the key of the array of sort properties. If used with a sort function, it may receive up to three arguments: the key of the array to sort, an optional additional array of dependent keys for the computed property, and the sort function.', argumentsValid));\n    }\n\n    if (sortDefinition === undefined && !Array.isArray(additionalDependentKeys)) {\n      sortDefinition = additionalDependentKeys;\n      additionalDependentKeys = [];\n    }\n\n    if (typeof sortDefinition === 'function') {\n      return customSort(itemsKey, additionalDependentKeys, sortDefinition);\n    } else {\n      return propertySort(itemsKey, sortDefinition);\n    }\n  }\n\n  function customSort(itemsKey, additionalDependentKeys, comparator) {\n    return arrayMacro(itemsKey, additionalDependentKeys, function (value) {\n      return value.slice().sort((x, y) => comparator.call(this, x, y));\n    });\n  } // This one needs to dynamically set up and tear down observers on the itemsKey\n  // depending on the sortProperties\n\n\n  function propertySort(itemsKey, sortPropertiesKey) {\n    var cp = (0, _metal.computed)(`${itemsKey}.[]`, `${sortPropertiesKey}.[]`, function (key) {\n      var sortProperties = (0, _metal.get)(this, sortPropertiesKey);\n      (true && !((0, _runtime.isArray)(sortProperties) && sortProperties.every(s => typeof s === 'string')) && (0, _debug.assert)(`The sort definition for '${key}' on ${this} must be a function or an array of strings`, (0, _runtime.isArray)(sortProperties) && sortProperties.every(s => typeof s === 'string')));\n      var itemsKeyIsAtThis = itemsKey === '@this';\n      var normalizedSortProperties = normalizeSortProperties(sortProperties);\n      var items = itemsKeyIsAtThis ? this : (0, _metal.get)(this, itemsKey);\n\n      if (!(0, _runtime.isArray)(items)) {\n        return (0, _runtime.A)();\n      }\n\n      if (normalizedSortProperties.length === 0) {\n        return (0, _runtime.A)(items.slice());\n      } else {\n        return sortByNormalizedSortProperties(items, normalizedSortProperties);\n      }\n    }).readOnly();\n    (0, _metal.descriptorForDecorator)(cp).auto();\n    return cp;\n  }\n\n  function normalizeSortProperties(sortProperties) {\n    return sortProperties.map(p => {\n      var [prop, direction] = p.split(':');\n      direction = direction || 'asc';\n      return [prop, direction];\n    });\n  }\n\n  function sortByNormalizedSortProperties(items, normalizedSortProperties) {\n    return (0, _runtime.A)(items.slice().sort((itemA, itemB) => {\n      for (var i = 0; i < normalizedSortProperties.length; i++) {\n        var [prop, direction] = normalizedSortProperties[i];\n        var result = (0, _runtime.compare)((0, _metal.get)(itemA, prop), (0, _metal.get)(itemB, prop));\n\n        if (result !== 0) {\n          return direction === 'desc' ? -1 * result : result;\n        }\n      }\n\n      return 0;\n    }));\n  }\n});","define(\"@ember/polyfills/index\", [\"exports\", \"@ember/deprecated-features\", \"@ember/polyfills/lib/merge\", \"@ember/polyfills/lib/assign\", \"@ember/polyfills/lib/weak_set\"], function (_exports, _deprecatedFeatures, _merge, _assign, _weak_set) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"assign\", {\n    enumerable: true,\n    get: function () {\n      return _assign.default;\n    }\n  });\n  Object.defineProperty(_exports, \"assignPolyfill\", {\n    enumerable: true,\n    get: function () {\n      return _assign.assign;\n    }\n  });\n  Object.defineProperty(_exports, \"_WeakSet\", {\n    enumerable: true,\n    get: function () {\n      return _weak_set.default;\n    }\n  });\n  _exports.merge = void 0;\n  var merge = _deprecatedFeatures.MERGE ? _merge.default : undefined; // Export `assignPolyfill` for testing\n\n  _exports.merge = merge;\n});","define(\"@ember/polyfills/lib/assign\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.assign = assign;\n  _exports.default = void 0;\n\n  /**\n   @module @ember/polyfills\n  */\n\n  /**\n    Copy properties from a source object to a target object. Source arguments remain unchanged.\n  \n    ```javascript\n    import { assign } from '@ember/polyfills';\n  \n    var a = { first: 'Yehuda' };\n    var b = { last: 'Katz' };\n    var c = { company: 'Other Company' };\n    var d = { company: 'Tilde Inc.' };\n    assign(a, b, c, d); // a === { first: 'Yehuda', last: 'Katz', company: 'Tilde Inc.' };\n    ```\n  \n    @method assign\n    @for @ember/polyfills\n    @param {Object} target The object to assign into\n    @param {Object} ...args The objects to copy properties from\n    @return {Object}\n    @public\n    @static\n  */\n  function assign(target) {\n    for (var i = 1; i < arguments.length; i++) {\n      var arg = arguments[i];\n\n      if (!arg) {\n        continue;\n      }\n\n      var updates = Object.keys(arg);\n\n      for (var _i = 0; _i < updates.length; _i++) {\n        var prop = updates[_i];\n        target[prop] = arg[prop];\n      }\n    }\n\n    return target;\n  } // Note: We use the bracket notation so\n  //       that the babel plugin does not\n  //       transform it.\n  // https://www.npmjs.com/package/babel-plugin-transform-object-assign\n\n\n  var {\n    assign: _assign\n  } = Object;\n\n  var _default = _assign || assign;\n\n  _exports.default = _default;\n});","define(\"@ember/polyfills/lib/merge\", [\"exports\", \"@ember/debug\"], function (_exports, _debug) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = merge;\n\n  /**\n    Merge the contents of two objects together into the first object.\n  \n    ```javascript\n    import { merge } from '@ember/polyfills';\n  \n    merge({ first: 'Tom' }, { last: 'Dale' }); // { first: 'Tom', last: 'Dale' }\n    var a = { first: 'Yehuda' };\n    var b = { last: 'Katz' };\n    merge(a, b); // a == { first: 'Yehuda', last: 'Katz' }, b == { last: 'Katz' }\n    ```\n  \n    @method merge\n    @static\n    @for @ember/polyfills\n    @param {Object} original The object to merge into\n    @param {Object} updates The object to copy properties from\n    @return {Object}\n    @deprecated\n    @public\n  */\n  function merge(original, updates) {\n    (true && !(false) && (0, _debug.deprecate)('Use of `merge` has been deprecated. Please use `assign` instead.', false, {\n      id: 'ember-polyfills.deprecate-merge',\n      until: '4.0.0',\n      url: 'https://emberjs.com/deprecations/v3.x/#toc_ember-polyfills-deprecate-merge'\n    }));\n\n    if (updates === null || typeof updates !== 'object') {\n      return original;\n    }\n\n    var props = Object.keys(updates);\n    var prop;\n\n    for (var i = 0; i < props.length; i++) {\n      prop = props[i];\n      original[prop] = updates[prop];\n    }\n\n    return original;\n  }\n});","define(\"@ember/polyfills/lib/weak_set\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /* globals WeakSet */\n  var _default = typeof WeakSet === 'function' ? WeakSet : class WeakSetPolyFill {\n    constructor() {\n      this._map = new WeakMap();\n    }\n\n    add(val) {\n      this._map.set(val, true);\n\n      return this;\n    }\n\n    delete(val) {\n      return this._map.delete(val);\n    }\n\n    has(val) {\n      return this._map.has(val);\n    }\n\n  };\n\n  _exports.default = _default;\n});","define(\"@ember/runloop/index\", [\"exports\", \"@ember/debug\", \"@ember/-internals/error-handling\", \"@ember/-internals/metal\", \"backburner\"], function (_exports, _debug, _errorHandling, _metal, _backburner) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.getCurrentRunLoop = getCurrentRunLoop;\n  _exports.run = run;\n  _exports.join = join;\n  _exports.begin = begin;\n  _exports.end = end;\n  _exports.schedule = schedule;\n  _exports.hasScheduledTimers = hasScheduledTimers;\n  _exports.cancelTimers = cancelTimers;\n  _exports.later = later;\n  _exports.once = once;\n  _exports.scheduleOnce = scheduleOnce;\n  _exports.next = next;\n  _exports.cancel = cancel;\n  _exports.debounce = debounce;\n  _exports.throttle = throttle;\n  _exports.bind = _exports._globalsRun = _exports.backburner = _exports.queues = _exports._rsvpErrorQueue = void 0;\n  var currentRunLoop = null;\n\n  function getCurrentRunLoop() {\n    return currentRunLoop;\n  }\n\n  function onBegin(current) {\n    currentRunLoop = current;\n  }\n\n  function onEnd(current, next) {\n    currentRunLoop = next;\n    (0, _metal.flushAsyncObservers)();\n  }\n\n  function flush(queueName, next) {\n    if (queueName === 'render' || queueName === _rsvpErrorQueue) {\n      (0, _metal.flushAsyncObservers)();\n    }\n\n    next();\n  }\n\n  var _rsvpErrorQueue = `${Math.random()}${Date.now()}`.replace('.', '');\n  /**\n    Array of named queues. This array determines the order in which queues\n    are flushed at the end of the RunLoop. You can define your own queues by\n    simply adding the queue name to this array. Normally you should not need\n    to inspect or modify this property.\n  \n    @property queues\n    @type Array\n    @default ['actions', 'destroy']\n    @private\n  */\n\n\n  _exports._rsvpErrorQueue = _rsvpErrorQueue;\n  var queues = ['actions', // used in router transitions to prevent unnecessary loading state entry\n  // if all context promises resolve on the 'actions' queue first\n  'routerTransitions', 'render', 'afterRender', 'destroy', // used to re-throw unhandled RSVP rejection errors specifically in this\n  // position to avoid breaking anything rendered in the other sections\n  _rsvpErrorQueue];\n  _exports.queues = queues;\n  var backburner = new _backburner.default(queues, {\n    defaultQueue: 'actions',\n    onBegin,\n    onEnd,\n    onErrorTarget: _errorHandling.onErrorTarget,\n    onErrorMethod: 'onerror',\n    flush\n  });\n  /**\n   @module @ember/runloop\n  */\n  // ..........................................................\n  // run - this is ideally the only public API the dev sees\n  //\n\n  /**\n    Runs the passed target and method inside of a RunLoop, ensuring any\n    deferred actions including bindings and views updates are flushed at the\n    end.\n  \n    Normally you should not need to invoke this method yourself. However if\n    you are implementing raw event handlers when interfacing with other\n    libraries or plugins, you should probably wrap all of your code inside this\n    call.\n  \n    ```javascript\n    import { run } from '@ember/runloop';\n  \n    run(function() {\n      // code to be executed within a RunLoop\n    });\n    ```\n    @method run\n    @for @ember/runloop\n    @static\n    @param {Object} [target] target of method to call\n    @param {Function|String} method Method to invoke.\n      May be a function or a string. If you pass a string\n      then it will be looked up on the passed target.\n    @param {Object} [args*] Any additional arguments you wish to pass to the method.\n    @return {Object} return value from invoking the passed function.\n    @public\n  */\n\n  _exports.backburner = backburner;\n\n  function run() {\n    return backburner.run(...arguments);\n  } // used for the Ember.run global only\n\n\n  var _globalsRun = run.bind(null);\n  /**\n    If no run-loop is present, it creates a new one. If a run loop is\n    present it will queue itself to run on the existing run-loops action\n    queue.\n  \n    Please note: This is not for normal usage, and should be used sparingly.\n  \n    If invoked when not within a run loop:\n  \n    ```javascript\n    import { join } from '@ember/runloop';\n  \n    join(function() {\n      // creates a new run-loop\n    });\n    ```\n  \n    Alternatively, if called within an existing run loop:\n  \n    ```javascript\n    import { run, join } from '@ember/runloop';\n  \n    run(function() {\n      // creates a new run-loop\n  \n      join(function() {\n        // joins with the existing run-loop, and queues for invocation on\n        // the existing run-loops action queue.\n      });\n    });\n    ```\n  \n    @method join\n    @static\n    @for @ember/runloop\n    @param {Object} [target] target of method to call\n    @param {Function|String} method Method to invoke.\n      May be a function or a string. If you pass a string\n      then it will be looked up on the passed target.\n    @param {Object} [args*] Any additional arguments you wish to pass to the method.\n    @return {Object} Return value from invoking the passed function. Please note,\n    when called within an existing loop, no return value is possible.\n    @public\n  */\n\n\n  _exports._globalsRun = _globalsRun;\n\n  function join() {\n    return backburner.join(...arguments);\n  }\n  /**\n    Allows you to specify which context to call the specified function in while\n    adding the execution of that function to the Ember run loop. This ability\n    makes this method a great way to asynchronously integrate third-party libraries\n    into your Ember application.\n  \n    `bind` takes two main arguments, the desired context and the function to\n    invoke in that context. Any additional arguments will be supplied as arguments\n    to the function that is passed in.\n  \n    Let's use the creation of a TinyMCE component as an example. Currently,\n    TinyMCE provides a setup configuration option we can use to do some processing\n    after the TinyMCE instance is initialized but before it is actually rendered.\n    We can use that setup option to do some additional setup for our component.\n    The component itself could look something like the following:\n  \n    ```app/components/rich-text-editor.js\n    import Component from '@ember/component';\n    import { on } from '@ember/object/evented';\n    import { bind } from '@ember/runloop';\n  \n    export default Component.extend({\n      initializeTinyMCE: on('didInsertElement', function() {\n        tinymce.init({\n          selector: '#' + this.$().prop('id'),\n          setup: bind(this, this.setupEditor)\n        });\n      }),\n  \n      didInsertElement() {\n        tinymce.init({\n          selector: '#' + this.$().prop('id'),\n          setup: bind(this, this.setupEditor)\n        });\n      }\n  \n      setupEditor(editor) {\n        this.set('editor', editor);\n  \n        editor.on('change', function() {\n          console.log('content changed!');\n        });\n      }\n    });\n    ```\n  \n    In this example, we use `bind` to bind the setupEditor method to the\n    context of the RichTextEditor component and to have the invocation of that\n    method be safely handled and executed by the Ember run loop.\n  \n    @method bind\n    @static\n    @for @ember/runloop\n    @param {Object} [target] target of method to call\n    @param {Function|String} method Method to invoke.\n      May be a function or a string. If you pass a string\n      then it will be looked up on the passed target.\n    @param {Object} [args*] Any additional arguments you wish to pass to the method.\n    @return {Function} returns a new function that will always have a particular context\n    @since 1.4.0\n    @public\n  */\n\n\n  var bind = (...curried) => {\n    (true && !(function (methodOrTarget, methodOrArg) {\n      // Applies the same logic as backburner parseArgs for detecting if a method\n      // is actually being passed.\n      var length = arguments.length;\n\n      if (length === 0) {\n        return false;\n      } else if (length === 1) {\n        return typeof methodOrTarget === 'function';\n      } else {\n        var type = typeof methodOrArg;\n        return type === 'function' || // second argument is a function\n        methodOrTarget !== null && type === 'string' && methodOrArg in methodOrTarget || // second argument is the name of a method in first argument\n        typeof methodOrTarget === 'function' //first argument is a function\n        ;\n      }\n    }(...curried)) && (0, _debug.assert)('could not find a suitable method to bind', function (methodOrTarget, methodOrArg) {\n      var length = arguments.length;\n\n      if (length === 0) {\n        return false;\n      } else if (length === 1) {\n        return typeof methodOrTarget === 'function';\n      } else {\n        var type = typeof methodOrArg;\n        return type === 'function' || methodOrTarget !== null && type === 'string' && methodOrArg in methodOrTarget || typeof methodOrTarget === 'function';\n      }\n    }(...curried)));\n    return (...args) => join(...curried.concat(args));\n  };\n  /**\n    Begins a new RunLoop. Any deferred actions invoked after the begin will\n    be buffered until you invoke a matching call to `end()`. This is\n    a lower-level way to use a RunLoop instead of using `run()`.\n  \n    ```javascript\n    import { begin, end } from '@ember/runloop';\n  \n    begin();\n    // code to be executed within a RunLoop\n    end();\n    ```\n  \n    @method begin\n    @static\n    @for @ember/runloop\n    @return {void}\n    @public\n  */\n\n\n  _exports.bind = bind;\n\n  function begin() {\n    backburner.begin();\n  }\n  /**\n    Ends a RunLoop. This must be called sometime after you call\n    `begin()` to flush any deferred actions. This is a lower-level way\n    to use a RunLoop instead of using `run()`.\n  \n    ```javascript\n    import { begin, end } from '@ember/runloop';\n  \n    begin();\n    // code to be executed within a RunLoop\n    end();\n    ```\n  \n    @method end\n    @static\n    @for @ember/runloop\n    @return {void}\n    @public\n  */\n\n\n  function end() {\n    backburner.end();\n  }\n  /**\n    Adds the passed target/method and any optional arguments to the named\n    queue to be executed at the end of the RunLoop. If you have not already\n    started a RunLoop when calling this method one will be started for you\n    automatically.\n  \n    At the end of a RunLoop, any methods scheduled in this way will be invoked.\n    Methods will be invoked in an order matching the named queues defined in\n    the `queues` property.\n  \n    ```javascript\n    import { schedule } from '@ember/runloop';\n  \n    schedule('afterRender', this, function() {\n      // this will be executed in the 'afterRender' queue\n      console.log('scheduled on afterRender queue');\n    });\n  \n    schedule('actions', this, function() {\n      // this will be executed in the 'actions' queue\n      console.log('scheduled on actions queue');\n    });\n  \n    // Note the functions will be run in order based on the run queues order.\n    // Output would be:\n    //   scheduled on actions queue\n    //   scheduled on afterRender queue\n    ```\n  \n    @method schedule\n    @static\n    @for @ember/runloop\n    @param {String} queue The name of the queue to schedule against. Default queues is 'actions'\n    @param {Object} [target] target object to use as the context when invoking a method.\n    @param {String|Function} method The method to invoke. If you pass a string it\n      will be resolved on the target object at the time the scheduled item is\n      invoked allowing you to change the target function.\n    @param {Object} [arguments*] Optional arguments to be passed to the queued method.\n    @return {*} Timer information for use in canceling, see `cancel`.\n    @public\n  */\n\n\n  function schedule()\n  /* queue, target, method */\n  {\n    return backburner.schedule(...arguments);\n  } // Used by global test teardown\n\n\n  function hasScheduledTimers() {\n    return backburner.hasTimers();\n  } // Used by global test teardown\n\n\n  function cancelTimers() {\n    backburner.cancelTimers();\n  }\n  /**\n    Invokes the passed target/method and optional arguments after a specified\n    period of time. The last parameter of this method must always be a number\n    of milliseconds.\n  \n    You should use this method whenever you need to run some action after a\n    period of time instead of using `setTimeout()`. This method will ensure that\n    items that expire during the same script execution cycle all execute\n    together, which is often more efficient than using a real setTimeout.\n  \n    ```javascript\n    import { later } from '@ember/runloop';\n  \n    later(myContext, function() {\n      // code here will execute within a RunLoop in about 500ms with this == myContext\n    }, 500);\n    ```\n  \n    @method later\n    @static\n    @for @ember/runloop\n    @param {Object} [target] target of method to invoke\n    @param {Function|String} method The method to invoke.\n      If you pass a string it will be resolved on the\n      target at the time the method is invoked.\n    @param {Object} [args*] Optional arguments to pass to the timeout.\n    @param {Number} wait Number of milliseconds to wait.\n    @return {*} Timer information for use in canceling, see `cancel`.\n    @public\n  */\n\n\n  function later()\n  /*target, method*/\n  {\n    return backburner.later(...arguments);\n  }\n  /**\n   Schedule a function to run one time during the current RunLoop. This is equivalent\n    to calling `scheduleOnce` with the \"actions\" queue.\n  \n    @method once\n    @static\n    @for @ember/runloop\n    @param {Object} [target] The target of the method to invoke.\n    @param {Function|String} method The method to invoke.\n      If you pass a string it will be resolved on the\n      target at the time the method is invoked.\n    @param {Object} [args*] Optional arguments to pass to the timeout.\n    @return {Object} Timer information for use in canceling, see `cancel`.\n    @public\n  */\n\n\n  function once(...args) {\n    args.unshift('actions');\n    return backburner.scheduleOnce(...args);\n  }\n  /**\n    Schedules a function to run one time in a given queue of the current RunLoop.\n    Calling this method with the same queue/target/method combination will have\n    no effect (past the initial call).\n  \n    Note that although you can pass optional arguments these will not be\n    considered when looking for duplicates. New arguments will replace previous\n    calls.\n  \n    ```javascript\n    import { run, scheduleOnce } from '@ember/runloop';\n  \n    function sayHi() {\n      console.log('hi');\n    }\n  \n    run(function() {\n      scheduleOnce('afterRender', myContext, sayHi);\n      scheduleOnce('afterRender', myContext, sayHi);\n      // sayHi will only be executed once, in the afterRender queue of the RunLoop\n    });\n    ```\n  \n    Also note that for `scheduleOnce` to prevent additional calls, you need to\n    pass the same function instance. The following case works as expected:\n  \n    ```javascript\n    function log() {\n      console.log('Logging only once');\n    }\n  \n    function scheduleIt() {\n      scheduleOnce('actions', myContext, log);\n    }\n  \n    scheduleIt();\n    scheduleIt();\n    ```\n  \n    But this other case will schedule the function multiple times:\n  \n    ```javascript\n    import { scheduleOnce } from '@ember/runloop';\n  \n    function scheduleIt() {\n      scheduleOnce('actions', myContext, function() {\n        console.log('Closure');\n      });\n    }\n  \n    scheduleIt();\n    scheduleIt();\n  \n    // \"Closure\" will print twice, even though we're using `scheduleOnce`,\n    // because the function we pass to it won't match the\n    // previously scheduled operation.\n    ```\n  \n    Available queues, and their order, can be found at `queues`\n  \n    @method scheduleOnce\n    @static\n    @for @ember/runloop\n    @param {String} [queue] The name of the queue to schedule against. Default queues is 'actions'.\n    @param {Object} [target] The target of the method to invoke.\n    @param {Function|String} method The method to invoke.\n      If you pass a string it will be resolved on the\n      target at the time the method is invoked.\n    @param {Object} [args*] Optional arguments to pass to the timeout.\n    @return {Object} Timer information for use in canceling, see `cancel`.\n    @public\n  */\n\n\n  function scheduleOnce()\n  /* queue, target, method*/\n  {\n    return backburner.scheduleOnce(...arguments);\n  }\n  /**\n    Schedules an item to run from within a separate run loop, after\n    control has been returned to the system. This is equivalent to calling\n    `later` with a wait time of 1ms.\n  \n    ```javascript\n    import { next } from '@ember/runloop';\n  \n    next(myContext, function() {\n      // code to be executed in the next run loop,\n      // which will be scheduled after the current one\n    });\n    ```\n  \n    Multiple operations scheduled with `next` will coalesce\n    into the same later run loop, along with any other operations\n    scheduled by `later` that expire right around the same\n    time that `next` operations will fire.\n  \n    Note that there are often alternatives to using `next`.\n    For instance, if you'd like to schedule an operation to happen\n    after all DOM element operations have completed within the current\n    run loop, you can make use of the `afterRender` run loop queue (added\n    by the `ember-views` package, along with the preceding `render` queue\n    where all the DOM element operations happen).\n  \n    Example:\n  \n    ```app/components/my-component.js\n    import Component from '@ember/component';\n    import { scheduleOnce } from '@ember/runloop';\n  \n    export Component.extend({\n      didInsertElement() {\n        this._super(...arguments);\n        scheduleOnce('afterRender', this, 'processChildElements');\n      },\n  \n      processChildElements() {\n        // ... do something with component's child component\n        // elements after they've finished rendering, which\n        // can't be done within this component's\n        // `didInsertElement` hook because that gets run\n        // before the child elements have been added to the DOM.\n      }\n    });\n    ```\n  \n    One benefit of the above approach compared to using `next` is\n    that you will be able to perform DOM/CSS operations before unprocessed\n    elements are rendered to the screen, which may prevent flickering or\n    other artifacts caused by delaying processing until after rendering.\n  \n    The other major benefit to the above approach is that `next`\n    introduces an element of non-determinism, which can make things much\n    harder to test, due to its reliance on `setTimeout`; it's much harder\n    to guarantee the order of scheduled operations when they are scheduled\n    outside of the current run loop, i.e. with `next`.\n  \n    @method next\n    @static\n    @for @ember/runloop\n    @param {Object} [target] target of method to invoke\n    @param {Function|String} method The method to invoke.\n      If you pass a string it will be resolved on the\n      target at the time the method is invoked.\n    @param {Object} [args*] Optional arguments to pass to the timeout.\n    @return {Object} Timer information for use in canceling, see `cancel`.\n    @public\n  */\n\n\n  function next(...args) {\n    args.push(1);\n    return backburner.later(...args);\n  }\n  /**\n    Cancels a scheduled item. Must be a value returned by `later()`,\n    `once()`, `scheduleOnce()`, `next()`, `debounce()`, or\n    `throttle()`.\n  \n    ```javascript\n    import {\n      next,\n      cancel,\n      later,\n      scheduleOnce,\n      once,\n      throttle,\n      debounce\n    } from '@ember/runloop';\n  \n    let runNext = next(myContext, function() {\n      // will not be executed\n    });\n  \n    cancel(runNext);\n  \n    let runLater = later(myContext, function() {\n      // will not be executed\n    }, 500);\n  \n    cancel(runLater);\n  \n    let runScheduleOnce = scheduleOnce('afterRender', myContext, function() {\n      // will not be executed\n    });\n  \n    cancel(runScheduleOnce);\n  \n    let runOnce = once(myContext, function() {\n      // will not be executed\n    });\n  \n    cancel(runOnce);\n  \n    let throttle = throttle(myContext, function() {\n      // will not be executed\n    }, 1, false);\n  \n    cancel(throttle);\n  \n    let debounce = debounce(myContext, function() {\n      // will not be executed\n    }, 1);\n  \n    cancel(debounce);\n  \n    let debounceImmediate = debounce(myContext, function() {\n      // will be executed since we passed in true (immediate)\n    }, 100, true);\n  \n    // the 100ms delay until this method can be called again will be canceled\n    cancel(debounceImmediate);\n    ```\n  \n    @method cancel\n    @static\n    @for @ember/runloop\n    @param {Object} timer Timer object to cancel\n    @return {Boolean} true if canceled or false/undefined if it wasn't found\n    @public\n  */\n\n\n  function cancel(timer) {\n    return backburner.cancel(timer);\n  }\n  /**\n    Delay calling the target method until the debounce period has elapsed\n    with no additional debounce calls. If `debounce` is called again before\n    the specified time has elapsed, the timer is reset and the entire period\n    must pass again before the target method is called.\n  \n    This method should be used when an event may be called multiple times\n    but the action should only be called once when the event is done firing.\n    A common example is for scroll events where you only want updates to\n    happen once scrolling has ceased.\n  \n    ```javascript\n    import { debounce } from '@ember/runloop';\n  \n    function whoRan() {\n      console.log(this.name + ' ran.');\n    }\n  \n    let myContext = { name: 'debounce' };\n  \n    debounce(myContext, whoRan, 150);\n  \n    // less than 150ms passes\n    debounce(myContext, whoRan, 150);\n  \n    // 150ms passes\n    // whoRan is invoked with context myContext\n    // console logs 'debounce ran.' one time.\n    ```\n  \n    Immediate allows you to run the function immediately, but debounce\n    other calls for this function until the wait time has elapsed. If\n    `debounce` is called again before the specified time has elapsed,\n    the timer is reset and the entire period must pass again before\n    the method can be called again.\n  \n    ```javascript\n    import { debounce } from '@ember/runloop';\n  \n    function whoRan() {\n      console.log(this.name + ' ran.');\n    }\n  \n    let myContext = { name: 'debounce' };\n  \n    debounce(myContext, whoRan, 150, true);\n  \n    // console logs 'debounce ran.' one time immediately.\n    // 100ms passes\n    debounce(myContext, whoRan, 150, true);\n  \n    // 150ms passes and nothing else is logged to the console and\n    // the debouncee is no longer being watched\n    debounce(myContext, whoRan, 150, true);\n  \n    // console logs 'debounce ran.' one time immediately.\n    // 150ms passes and nothing else is logged to the console and\n    // the debouncee is no longer being watched\n    ```\n  \n    @method debounce\n    @static\n    @for @ember/runloop\n    @param {Object} [target] target of method to invoke\n    @param {Function|String} method The method to invoke.\n      May be a function or a string. If you pass a string\n      then it will be looked up on the passed target.\n    @param {Object} [args*] Optional arguments to pass to the timeout.\n    @param {Number} wait Number of milliseconds to wait.\n    @param {Boolean} immediate Trigger the function on the leading instead\n      of the trailing edge of the wait interval. Defaults to false.\n    @return {Array} Timer information for use in canceling, see `cancel`.\n    @public\n  */\n\n\n  function debounce() {\n    return backburner.debounce(...arguments);\n  }\n  /**\n    Ensure that the target method is never called more frequently than\n    the specified spacing period. The target method is called immediately.\n  \n    ```javascript\n    import { throttle } from '@ember/runloop';\n  \n    function whoRan() {\n      console.log(this.name + ' ran.');\n    }\n  \n    let myContext = { name: 'throttle' };\n  \n    throttle(myContext, whoRan, 150);\n    // whoRan is invoked with context myContext\n    // console logs 'throttle ran.'\n  \n    // 50ms passes\n    throttle(myContext, whoRan, 150);\n  \n    // 50ms passes\n    throttle(myContext, whoRan, 150);\n  \n    // 150ms passes\n    throttle(myContext, whoRan, 150);\n    // whoRan is invoked with context myContext\n    // console logs 'throttle ran.'\n    ```\n  \n    @method throttle\n    @static\n    @for @ember/runloop\n    @param {Object} [target] target of method to invoke\n    @param {Function|String} method The method to invoke.\n      May be a function or a string. If you pass a string\n      then it will be looked up on the passed target.\n    @param {Object} [args*] Optional arguments to pass to the timeout.\n    @param {Number} spacing Number of milliseconds to space out requests.\n    @param {Boolean} immediate Trigger the function on the leading instead\n      of the trailing edge of the wait interval. Defaults to true.\n    @return {Array} Timer information for use in canceling, see `cancel`.\n    @public\n  */\n\n\n  function throttle() {\n    return backburner.throttle(...arguments);\n  }\n});","define(\"@ember/service/index\", [\"exports\", \"@ember/-internals/runtime\", \"@ember/-internals/metal\"], function (_exports, _runtime, _metal) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.inject = inject;\n  _exports.default = void 0;\n\n  /**\n   @module @ember/service\n   @public\n   */\n\n  /**\n    Creates a property that lazily looks up a service in the container. There are\n    no restrictions as to what objects a service can be injected into.\n  \n    Example:\n  \n    ```app/routes/application.js\n    import Route from '@ember/routing/route';\n    import { inject as service } from '@ember/service';\n  \n    export default class ApplicationRoute extends Route {\n      @service('auth') authManager;\n  \n      model() {\n        return this.authManager.findCurrentUser();\n      }\n    }\n    ```\n  \n    Classic Class Example:\n  \n    ```app/routes/application.js\n    import Route from '@ember/routing/route';\n    import { inject as service } from '@ember/service';\n  \n    export default Route.extend({\n      authManager: service('auth'),\n  \n      model() {\n        return this.get('authManager').findCurrentUser();\n      }\n    });\n    ```\n  \n    This example will create an `authManager` property on the application route\n    that looks up the `auth` service in the container, making it easily accessible\n    in the `model` hook.\n  \n    @method inject\n    @static\n    @since 1.10.0\n    @for @ember/service\n    @param {String} name (optional) name of the service to inject, defaults to\n           the property's name\n    @return {ComputedDecorator} injection decorator instance\n    @public\n  */\n  function inject() {\n    return (0, _metal.inject)('service', ...arguments);\n  }\n  /**\n    @class Service\n    @extends EmberObject\n    @since 1.10.0\n    @public\n  */\n\n\n  var Service = _runtime.FrameworkObject.extend();\n\n  Service.reopenClass({\n    isServiceFactory: true\n  });\n  (0, _runtime.setFrameworkClass)(Service);\n  var _default = Service;\n  _exports.default = _default;\n});","define(\"@ember/string/index\", [\"exports\", \"@ember/string/lib/string_registry\", \"@ember/-internals/environment\", \"@ember/-internals/utils\"], function (_exports, _string_registry, _environment, _utils) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.loc = loc;\n  _exports.w = w;\n  _exports.decamelize = decamelize;\n  _exports.dasherize = dasherize;\n  _exports.camelize = camelize;\n  _exports.classify = classify;\n  _exports.underscore = underscore;\n  _exports.capitalize = capitalize;\n  Object.defineProperty(_exports, \"_getStrings\", {\n    enumerable: true,\n    get: function () {\n      return _string_registry.getStrings;\n    }\n  });\n  Object.defineProperty(_exports, \"_setStrings\", {\n    enumerable: true,\n    get: function () {\n      return _string_registry.setStrings;\n    }\n  });\n\n  /**\n  @module @ember/string\n  */\n  var STRING_DASHERIZE_REGEXP = /[ _]/g;\n  var STRING_DASHERIZE_CACHE = new _utils.Cache(1000, key => decamelize(key).replace(STRING_DASHERIZE_REGEXP, '-'));\n  var STRING_CAMELIZE_REGEXP_1 = /(\\-|\\_|\\.|\\s)+(.)?/g;\n  var STRING_CAMELIZE_REGEXP_2 = /(^|\\/)([A-Z])/g;\n  var CAMELIZE_CACHE = new _utils.Cache(1000, key => key.replace(STRING_CAMELIZE_REGEXP_1, (_match, _separator, chr) => chr ? chr.toUpperCase() : '').replace(STRING_CAMELIZE_REGEXP_2, (match\n  /*, separator, chr */\n  ) => match.toLowerCase()));\n  var STRING_CLASSIFY_REGEXP_1 = /^(\\-|_)+(.)?/;\n  var STRING_CLASSIFY_REGEXP_2 = /(.)(\\-|\\_|\\.|\\s)+(.)?/g;\n  var STRING_CLASSIFY_REGEXP_3 = /(^|\\/|\\.)([a-z])/g;\n  var CLASSIFY_CACHE = new _utils.Cache(1000, str => {\n    var replace1 = (_match, _separator, chr) => chr ? `_${chr.toUpperCase()}` : '';\n\n    var replace2 = (_match, initialChar, _separator, chr) => initialChar + (chr ? chr.toUpperCase() : '');\n\n    var parts = str.split('/');\n\n    for (var i = 0; i < parts.length; i++) {\n      parts[i] = parts[i].replace(STRING_CLASSIFY_REGEXP_1, replace1).replace(STRING_CLASSIFY_REGEXP_2, replace2);\n    }\n\n    return parts.join('/').replace(STRING_CLASSIFY_REGEXP_3, (match\n    /*, separator, chr */\n    ) => match.toUpperCase());\n  });\n  var STRING_UNDERSCORE_REGEXP_1 = /([a-z\\d])([A-Z]+)/g;\n  var STRING_UNDERSCORE_REGEXP_2 = /\\-|\\s+/g;\n  var UNDERSCORE_CACHE = new _utils.Cache(1000, str => str.replace(STRING_UNDERSCORE_REGEXP_1, '$1_$2').replace(STRING_UNDERSCORE_REGEXP_2, '_').toLowerCase());\n  var STRING_CAPITALIZE_REGEXP = /(^|\\/)([a-z\\u00C0-\\u024F])/g;\n  var CAPITALIZE_CACHE = new _utils.Cache(1000, str => str.replace(STRING_CAPITALIZE_REGEXP, (match\n  /*, separator, chr */\n  ) => match.toUpperCase()));\n  var STRING_DECAMELIZE_REGEXP = /([a-z\\d])([A-Z])/g;\n  var DECAMELIZE_CACHE = new _utils.Cache(1000, str => str.replace(STRING_DECAMELIZE_REGEXP, '$1_$2').toLowerCase());\n  /**\n    Defines string helper methods including string formatting and localization.\n    Unless `EmberENV.EXTEND_PROTOTYPES.String` is `false` these methods will also be\n    added to the `String.prototype` as well.\n  \n    @class String\n    @public\n  */\n\n  function _fmt(str, formats) {\n    // first, replace any ORDERED replacements.\n    var idx = 0; // the current index for non-numerical replacements\n\n    return str.replace(/%@([0-9]+)?/g, (_s, argIndex) => {\n      var i = argIndex ? parseInt(argIndex, 10) - 1 : idx++;\n      var r = i < formats.length ? formats[i] : undefined;\n      return typeof r === 'string' ? r : r === null ? '(null)' : r === undefined ? '' : String(r);\n    });\n  }\n  /**\n    Formats the passed string, but first looks up the string in the localized\n    strings hash. This is a convenient way to localize text.\n  \n    Note that it is traditional but not required to prefix localized string\n    keys with an underscore or other character so you can easily identify\n    localized strings.\n  \n    ```javascript\n    import { loc } from '@ember/string';\n  \n    Ember.STRINGS = {\n      '_Hello World': 'Bonjour le monde',\n      '_Hello %@ %@': 'Bonjour %@ %@'\n    };\n  \n    loc(\"_Hello World\");  // 'Bonjour le monde';\n    loc(\"_Hello %@ %@\", [\"John\", \"Smith\"]);  // \"Bonjour John Smith\";\n    ```\n  \n    @method loc\n    @param {String} str The string to format\n    @param {Array} formats Optional array of parameters to interpolate into string.\n    @return {String} formatted string\n    @public\n  */\n\n\n  function loc(str, formats) {\n    if (!Array.isArray(formats) || arguments.length > 2) {\n      formats = Array.prototype.slice.call(arguments, 1);\n    }\n\n    str = (0, _string_registry.getString)(str) || str;\n    return _fmt(str, formats);\n  }\n  /**\n    Splits a string into separate units separated by spaces, eliminating any\n    empty strings in the process. This is a convenience method for split that\n    is mostly useful when applied to the `String.prototype`.\n  \n    ```javascript\n    import { w } from '@ember/string';\n  \n    w(\"alpha beta gamma\").forEach(function(key) {\n      console.log(key);\n    });\n  \n    // > alpha\n    // > beta\n    // > gamma\n    ```\n  \n    @method w\n    @param {String} str The string to split\n    @return {Array} array containing the split strings\n    @public\n  */\n\n\n  function w(str) {\n    return str.split(/\\s+/);\n  }\n  /**\n    Converts a camelized string into all lower case separated by underscores.\n  \n    ```javascript\n    import { decamelize } from '@ember/string';\n  \n    decamelize('innerHTML');          // 'inner_html'\n    decamelize('action_name');        // 'action_name'\n    decamelize('css-class-name');     // 'css-class-name'\n    decamelize('my favorite items');  // 'my favorite items'\n    ```\n  \n    @method decamelize\n    @param {String} str The string to decamelize.\n    @return {String} the decamelized string.\n    @public\n  */\n\n\n  function decamelize(str) {\n    return DECAMELIZE_CACHE.get(str);\n  }\n  /**\n    Replaces underscores, spaces, or camelCase with dashes.\n  \n    ```javascript\n    import { dasherize } from '@ember/string';\n  \n    dasherize('innerHTML');                // 'inner-html'\n    dasherize('action_name');              // 'action-name'\n    dasherize('css-class-name');           // 'css-class-name'\n    dasherize('my favorite items');        // 'my-favorite-items'\n    dasherize('privateDocs/ownerInvoice';  // 'private-docs/owner-invoice'\n    ```\n  \n    @method dasherize\n    @param {String} str The string to dasherize.\n    @return {String} the dasherized string.\n    @public\n  */\n\n\n  function dasherize(str) {\n    return STRING_DASHERIZE_CACHE.get(str);\n  }\n  /**\n    Returns the lowerCamelCase form of a string.\n  \n    ```javascript\n    import { camelize } from '@ember/string';\n  \n    camelize('innerHTML');                   // 'innerHTML'\n    camelize('action_name');                 // 'actionName'\n    camelize('css-class-name');              // 'cssClassName'\n    camelize('my favorite items');           // 'myFavoriteItems'\n    camelize('My Favorite Items');           // 'myFavoriteItems'\n    camelize('private-docs/owner-invoice');  // 'privateDocs/ownerInvoice'\n    ```\n  \n    @method camelize\n    @param {String} str The string to camelize.\n    @return {String} the camelized string.\n    @public\n  */\n\n\n  function camelize(str) {\n    return CAMELIZE_CACHE.get(str);\n  }\n  /**\n    Returns the UpperCamelCase form of a string.\n  \n    ```javascript\n    import { classify } from '@ember/string';\n  \n    classify('innerHTML');                   // 'InnerHTML'\n    classify('action_name');                 // 'ActionName'\n    classify('css-class-name');              // 'CssClassName'\n    classify('my favorite items');           // 'MyFavoriteItems'\n    classify('private-docs/owner-invoice');  // 'PrivateDocs/OwnerInvoice'\n    ```\n  \n    @method classify\n    @param {String} str the string to classify\n    @return {String} the classified string\n    @public\n  */\n\n\n  function classify(str) {\n    return CLASSIFY_CACHE.get(str);\n  }\n  /**\n    More general than decamelize. Returns the lower\\_case\\_and\\_underscored\n    form of a string.\n  \n    ```javascript\n    import { underscore } from '@ember/string';\n  \n    underscore('innerHTML');                 // 'inner_html'\n    underscore('action_name');               // 'action_name'\n    underscore('css-class-name');            // 'css_class_name'\n    underscore('my favorite items');         // 'my_favorite_items'\n    underscore('privateDocs/ownerInvoice');  // 'private_docs/owner_invoice'\n    ```\n  \n    @method underscore\n    @param {String} str The string to underscore.\n    @return {String} the underscored string.\n    @public\n  */\n\n\n  function underscore(str) {\n    return UNDERSCORE_CACHE.get(str);\n  }\n  /**\n    Returns the Capitalized form of a string\n  \n    ```javascript\n    import { capitalize } from '@ember/string';\n  \n    capitalize('innerHTML')                 // 'InnerHTML'\n    capitalize('action_name')               // 'Action_name'\n    capitalize('css-class-name')            // 'Css-class-name'\n    capitalize('my favorite items')         // 'My favorite items'\n    capitalize('privateDocs/ownerInvoice'); // 'PrivateDocs/ownerInvoice'\n    ```\n  \n    @method capitalize\n    @param {String} str The string to capitalize.\n    @return {String} The capitalized string.\n    @public\n  */\n\n\n  function capitalize(str) {\n    return CAPITALIZE_CACHE.get(str);\n  }\n\n  if (_environment.ENV.EXTEND_PROTOTYPES.String) {\n    Object.defineProperties(String.prototype, {\n      /**\n        See [String.w](/ember/release/classes/String/methods/w?anchor=w).\n             @method w\n        @for @ember/string\n        @static\n        @private\n      */\n      w: {\n        configurable: true,\n        enumerable: false,\n        writeable: true,\n\n        value() {\n          return w(this);\n        }\n\n      },\n\n      /**\n        See [String.loc](/ember/release/classes/String/methods/loc?anchor=loc).\n             @method loc\n        @for @ember/string\n        @static\n        @private\n      */\n      loc: {\n        configurable: true,\n        enumerable: false,\n        writeable: true,\n\n        value(...args) {\n          return loc(this, args);\n        }\n\n      },\n\n      /**\n        See [String.camelize](/ember/release/classes/String/methods/camelize?anchor=camelize).\n             @method camelize\n        @for @ember/string\n        @static\n        @private\n      */\n      camelize: {\n        configurable: true,\n        enumerable: false,\n        writeable: true,\n\n        value() {\n          return camelize(this);\n        }\n\n      },\n\n      /**\n        See [String.decamelize](/ember/release/classes/String/methods/decamelize?anchor=decamelize).\n             @method decamelize\n        @for @ember/string\n        @static\n        @private\n      */\n      decamelize: {\n        configurable: true,\n        enumerable: false,\n        writeable: true,\n\n        value() {\n          return decamelize(this);\n        }\n\n      },\n\n      /**\n        See [String.dasherize](/ember/release/classes/String/methods/dasherize?anchor=dasherize).\n             @method dasherize\n        @for @ember/string\n        @static\n        @private\n      */\n      dasherize: {\n        configurable: true,\n        enumerable: false,\n        writeable: true,\n\n        value() {\n          return dasherize(this);\n        }\n\n      },\n\n      /**\n        See [String.underscore](/ember/release/classes/String/methods/underscore?anchor=underscore).\n             @method underscore\n        @for @ember/string\n        @static\n        @private\n      */\n      underscore: {\n        configurable: true,\n        enumerable: false,\n        writeable: true,\n\n        value() {\n          return underscore(this);\n        }\n\n      },\n\n      /**\n        See [String.classify](/ember/release/classes/String/methods/classify?anchor=classify).\n             @method classify\n        @for @ember/string\n        @static\n        @private\n      */\n      classify: {\n        configurable: true,\n        enumerable: false,\n        writeable: true,\n\n        value() {\n          return classify(this);\n        }\n\n      },\n\n      /**\n        See [String.capitalize](/ember/release/classes/String/methods/capitalize?anchor=capitalize).\n             @method capitalize\n        @for @ember/string\n        @static\n        @private\n      */\n      capitalize: {\n        configurable: true,\n        enumerable: false,\n        writeable: true,\n\n        value() {\n          return capitalize(this);\n        }\n\n      }\n    });\n  }\n});","define(\"@ember/string/lib/string_registry\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.setStrings = setStrings;\n  _exports.getStrings = getStrings;\n  _exports.getString = getString;\n  // STATE within a module is frowned upon, this exists\n  // to support Ember.STRINGS but shield ember internals from this legacy global\n  // API.\n  var STRINGS = {};\n\n  function setStrings(strings) {\n    STRINGS = strings;\n  }\n\n  function getStrings() {\n    return STRINGS;\n  }\n\n  function getString(name) {\n    return STRINGS[name];\n  }\n});","define(\"@glimmer/encoder\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.InstructionEncoderImpl = void 0;\n\n  class InstructionEncoderImpl {\n    constructor(buffer) {\n      this.buffer = buffer;\n      this.size = 0;\n    }\n\n    encode(type, machine) {\n      if (type > 255\n      /* TYPE_SIZE */\n      ) {\n          throw new Error(`Opcode type over 8-bits. Got ${type}.`);\n        }\n\n      var first = type | machine | arguments.length - 2 << 8\n      /* ARG_SHIFT */\n      ;\n      this.buffer.push(first);\n\n      for (var i = 2; i < arguments.length; i++) {\n        var op = arguments[i];\n\n        if (typeof op === 'number' && op > 2147483647\n        /* MAX_SIZE */\n        ) {\n            throw new Error(`Operand over 32-bits. Got ${op}.`);\n          }\n\n        this.buffer.push(op);\n      }\n\n      this.size = this.buffer.length;\n    }\n\n    patch(position, target) {\n      if (this.buffer[position + 1] === -1) {\n        this.buffer[position + 1] = target;\n      } else {\n        throw new Error('Trying to patch operand in populated slot instead of a reserved slot.');\n      }\n    }\n\n  }\n\n  _exports.InstructionEncoderImpl = InstructionEncoderImpl;\n});","define(\"@glimmer/env\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.CI = _exports.DEBUG = void 0;\n  var DEBUG = false;\n  _exports.DEBUG = DEBUG;\n  var CI = false;\n  _exports.CI = CI;\n});","define(\"@glimmer/low-level\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.Stack = _exports.Storage = void 0;\n\n  class Storage {\n    constructor() {\n      this.array = [];\n      this.next = 0;\n    }\n\n    add(element) {\n      var {\n        next: slot,\n        array\n      } = this;\n\n      if (slot === array.length) {\n        this.next++;\n      } else {\n        var prev = array[slot];\n        this.next = prev;\n      }\n\n      this.array[slot] = element;\n      return slot;\n    }\n\n    deref(pointer) {\n      return this.array[pointer];\n    }\n\n    drop(pointer) {\n      this.array[pointer] = this.next;\n      this.next = pointer;\n    }\n\n  }\n\n  _exports.Storage = Storage;\n\n  class Stack {\n    constructor(vec = []) {\n      this.vec = vec;\n    }\n\n    clone() {\n      return new Stack(this.vec.slice());\n    }\n\n    sliceFrom(start) {\n      return new Stack(this.vec.slice(start));\n    }\n\n    slice(start, end) {\n      return new Stack(this.vec.slice(start, end));\n    }\n\n    copy(from, to) {\n      this.vec[to] = this.vec[from];\n    } // TODO: how to model u64 argument?\n\n\n    writeRaw(pos, value) {\n      // TODO: Grow?\n      this.vec[pos] = value;\n    } // TODO: partially decoded enum?\n\n\n    getRaw(pos) {\n      return this.vec[pos];\n    }\n\n    reset() {\n      this.vec.length = 0;\n    }\n\n    len() {\n      return this.vec.length;\n    }\n\n  }\n\n  _exports.Stack = Stack;\n});","define(\"@glimmer/node\", [\"exports\", \"@glimmer/runtime\", \"@simple-dom/document\"], function (_exports, _runtime, _document) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.serializeBuilder = serializeBuilder;\n  _exports.NodeDOMTreeConstruction = void 0;\n\n  class NodeDOMTreeConstruction extends _runtime.DOMTreeConstruction {\n    constructor(doc) {\n      super(doc || (0, _document.default)());\n    } // override to prevent usage of `this.document` until after the constructor\n\n\n    setupUselessElement() {}\n\n    insertHTMLBefore(parent, reference, html) {\n      var raw = this.document.createRawHTMLSection(html);\n      parent.insertBefore(raw, reference);\n      return new _runtime.ConcreteBounds(parent, raw, raw);\n    } // override to avoid SVG detection/work when in node (this is not needed in SSR)\n\n\n    createElement(tag) {\n      return this.document.createElement(tag);\n    } // override to avoid namespace shenanigans when in node (this is not needed in SSR)\n\n\n    setAttribute(element, name, value) {\n      element.setAttribute(name, value);\n    }\n\n  }\n\n  _exports.NodeDOMTreeConstruction = NodeDOMTreeConstruction;\n  var TEXT_NODE = 3;\n  var NEEDS_EXTRA_CLOSE = new WeakMap();\n\n  function currentNode(cursor) {\n    var {\n      element,\n      nextSibling\n    } = cursor;\n\n    if (nextSibling === null) {\n      return element.lastChild;\n    } else {\n      return nextSibling.previousSibling;\n    }\n  }\n\n  class SerializeBuilder extends _runtime.NewElementBuilder {\n    constructor() {\n      super(...arguments);\n      this.serializeBlockDepth = 0;\n    }\n\n    __openBlock() {\n      var {\n        tagName\n      } = this.element;\n\n      if (tagName !== 'TITLE' && tagName !== 'SCRIPT' && tagName !== 'STYLE') {\n        var depth = this.serializeBlockDepth++;\n\n        this.__appendComment(`%+b:${depth}%`);\n      }\n\n      super.__openBlock();\n    }\n\n    __closeBlock() {\n      var {\n        tagName\n      } = this.element;\n\n      super.__closeBlock();\n\n      if (tagName !== 'TITLE' && tagName !== 'SCRIPT' && tagName !== 'STYLE') {\n        var depth = --this.serializeBlockDepth;\n\n        this.__appendComment(`%-b:${depth}%`);\n      }\n    }\n\n    __appendHTML(html) {\n      var {\n        tagName\n      } = this.element;\n\n      if (tagName === 'TITLE' || tagName === 'SCRIPT' || tagName === 'STYLE') {\n        return super.__appendHTML(html);\n      } // Do we need to run the html tokenizer here?\n\n\n      var first = this.__appendComment('%glmr%');\n\n      if (tagName === 'TABLE') {\n        var openIndex = html.indexOf('<');\n\n        if (openIndex > -1) {\n          var tr = html.slice(openIndex + 1, openIndex + 3);\n\n          if (tr === 'tr') {\n            html = `<tbody>${html}</tbody>`;\n          }\n        }\n      }\n\n      if (html === '') {\n        this.__appendComment('% %');\n      } else {\n        super.__appendHTML(html);\n      }\n\n      var last = this.__appendComment('%glmr%');\n\n      return new _runtime.ConcreteBounds(this.element, first, last);\n    }\n\n    __appendText(string) {\n      var {\n        tagName\n      } = this.element;\n      var current = currentNode(this);\n\n      if (tagName === 'TITLE' || tagName === 'SCRIPT' || tagName === 'STYLE') {\n        return super.__appendText(string);\n      } else if (string === '') {\n        return this.__appendComment('% %');\n      } else if (current && current.nodeType === TEXT_NODE) {\n        this.__appendComment('%|%');\n      }\n\n      return super.__appendText(string);\n    }\n\n    closeElement() {\n      if (NEEDS_EXTRA_CLOSE.has(this.element)) {\n        NEEDS_EXTRA_CLOSE.delete(this.element);\n        super.closeElement();\n      }\n\n      return super.closeElement();\n    }\n\n    openElement(tag) {\n      if (tag === 'tr') {\n        if (this.element.tagName !== 'TBODY' && this.element.tagName !== 'THEAD' && this.element.tagName !== 'TFOOT') {\n          this.openElement('tbody'); // This prevents the closeBlock comment from being re-parented\n          // under the auto inserted tbody. Rehydration builder needs to\n          // account for the insertion since it is injected here and not\n          // really in the template.\n\n          NEEDS_EXTRA_CLOSE.set(this.constructing, true);\n          this.flushElement(null);\n        }\n      }\n\n      return super.openElement(tag);\n    }\n\n    pushRemoteElement(element, cursorId, insertBefore = null) {\n      var {\n        dom\n      } = this;\n      var script = dom.createElement('script');\n      script.setAttribute('glmr', cursorId);\n      dom.insertBefore(element, script, insertBefore);\n      return super.pushRemoteElement(element, cursorId, insertBefore);\n    }\n\n  }\n\n  function serializeBuilder(env, cursor) {\n    return SerializeBuilder.forInitialRender(env, cursor);\n  }\n});","define(\"@glimmer/opcode-compiler\", [\"exports\", \"@glimmer/vm\", \"@glimmer/util\", \"@glimmer/program\", \"@glimmer/encoder\"], function (_exports, _vm, _util, _program, _encoder) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.compileStatements = compileStatements;\n  _exports.compilable = compilable;\n  _exports.staticComponent = StaticComponent;\n  _exports.invokeStaticBlockWithStack = InvokeStaticBlockWithStack;\n  _exports.invokeStaticBlock = InvokeStaticBlock;\n  _exports.compileStd = compileStd;\n  _exports.meta = meta;\n  _exports.templateFactory = templateFactory;\n  _exports.Component = Component;\n  _exports.resolveLayoutForTag = resolveLayoutForTag;\n  _exports.syntaxCompilationContext = syntaxCompilationContext;\n  _exports.Context = Context;\n  _exports.JitContext = JitContext;\n  _exports.AotContext = AotContext;\n  _exports.templateCompilationContext = templateCompilationContext;\n  _exports.DefaultCompileTimeResolverDelegate = _exports.MINIMAL_CAPABILITIES = _exports.DEFAULT_CAPABILITIES = _exports.JitProgramCompilationContext = _exports.ProgramCompilationContext = _exports.EMPTY_BLOCKS = _exports.WrappedBuilder = _exports.PartialDefinitionImpl = _exports.StdLib = _exports.debugCompiler = _exports.NONE = _exports.UNHANDLED = _exports.MacrosImpl = void 0;\n\n  function arr(value) {\n    return {\n      type: 'array',\n      value\n    };\n  }\n\n  function strArray(value) {\n    return {\n      type: 'string-array',\n      value\n    };\n  }\n\n  function serializable(value) {\n    return {\n      type: 'serializable',\n      value\n    };\n  }\n\n  function templateMeta(value) {\n    return {\n      type: 'template-meta',\n      value\n    };\n  }\n\n  function other(value) {\n    return {\n      type: 'other',\n      value\n    };\n  }\n\n  function label(value) {\n    return {\n      type: 'label',\n      value\n    };\n  }\n\n  function prim(operand, type) {\n    return {\n      type: 'primitive',\n      value: {\n        primitive: operand,\n        type\n      }\n    };\n  }\n\n  var DEFAULT_CAPABILITIES = {\n    dynamicLayout: true,\n    dynamicTag: true,\n    prepareArgs: true,\n    createArgs: true,\n    attributeHook: false,\n    elementHook: false,\n    dynamicScope: true,\n    createCaller: false,\n    updateHook: true,\n    createInstance: true,\n    wrapped: false,\n    willDestroy: false\n  };\n  _exports.DEFAULT_CAPABILITIES = DEFAULT_CAPABILITIES;\n  var MINIMAL_CAPABILITIES = {\n    dynamicLayout: false,\n    dynamicTag: false,\n    prepareArgs: false,\n    createArgs: false,\n    attributeHook: false,\n    elementHook: false,\n    dynamicScope: false,\n    createCaller: false,\n    updateHook: false,\n    createInstance: false,\n    wrapped: false,\n    willDestroy: false\n  };\n  _exports.MINIMAL_CAPABILITIES = MINIMAL_CAPABILITIES;\n\n  class DefaultCompileTimeResolverDelegate {\n    constructor(inner) {\n      this.inner = inner;\n    }\n\n    lookupHelper(name, referrer) {\n      if (this.inner.lookupHelper) {\n        var helper = this.inner.lookupHelper(name, referrer);\n\n        if (helper === undefined) {\n          throw new Error(`Unexpected helper (${name} from ${JSON.stringify(referrer)}) (lookupHelper returned undefined)`);\n        }\n\n        return helper;\n      } else {\n        throw new Error(`Can't compile global helper invocations without an implementation of lookupHelper`);\n      }\n    }\n\n    lookupModifier(name, referrer) {\n      if (this.inner.lookupModifier) {\n        var modifier = this.inner.lookupModifier(name, referrer);\n\n        if (modifier === undefined) {\n          throw new Error(`Unexpected modifier (${name} from ${JSON.stringify(referrer)}) (lookupModifier returned undefined)`);\n        }\n\n        return modifier;\n      } else {\n        throw new Error(`Can't compile global modifier invocations without an implementation of lookupModifier`);\n      }\n    }\n\n    lookupComponent(name, referrer) {\n      if (this.inner.lookupComponent) {\n        var component = this.inner.lookupComponent(name, referrer);\n\n        if (component === undefined) {\n          throw new Error(`Unexpected component (${name} from ${JSON.stringify(referrer)}) (lookupComponent returned undefined)`);\n        }\n\n        return component;\n      } else {\n        throw new Error(`Can't compile global component invocations without an implementation of lookupComponent`);\n      }\n    }\n\n    lookupPartial(name, referrer) {\n      if (this.inner.lookupPartial) {\n        var partial = this.inner.lookupPartial(name, referrer);\n\n        if (partial === undefined) {\n          throw new Error(`Unexpected partial (${name} from ${JSON.stringify(referrer)}) (lookupPartial returned undefined)`);\n        }\n\n        return partial;\n      } else {\n        throw new Error(`Can't compile global partial invocations without an implementation of lookupPartial`);\n      }\n    } // For debugging\n\n\n    resolve(handle) {\n      if (this.inner.resolve) {\n        return this.inner.resolve(handle);\n      } else {\n        throw new Error(`Compile-time debugging requires an implementation of resolve`);\n      }\n    }\n\n  }\n\n  _exports.DefaultCompileTimeResolverDelegate = DefaultCompileTimeResolverDelegate;\n\n  function resolveLayoutForTag(tag, {\n    resolver,\n    meta: {\n      referrer\n    }\n  }) {\n    var component = resolver.lookupComponent(tag, referrer);\n    if (component === null) return component;\n    var {\n      handle,\n      compilable,\n      capabilities\n    } = component;\n    return {\n      handle,\n      compilable,\n      capabilities: capabilities || MINIMAL_CAPABILITIES\n    };\n  }\n  /**\n   * Push a reference onto the stack corresponding to a statically known primitive\n   * @param value A JavaScript primitive (undefined, null, boolean, number or string)\n   */\n\n\n  function PushPrimitiveReference(value) {\n    return [PushPrimitive(value), op(31\n    /* PrimitiveReference */\n    )];\n  }\n  /**\n   * Push an encoded representation of a JavaScript primitive on the stack\n   *\n   * @param value A JavaScript primitive (undefined, null, boolean, number or string)\n   */\n\n\n  function PushPrimitive(primitive) {\n    var p;\n\n    switch (typeof primitive) {\n      case 'number':\n        if ((0, _util.isSmallInt)(primitive)) {\n          p = prim(primitive, 0\n          /* IMMEDIATE */\n          );\n        } else {\n          p = prim(primitive, 2\n          /* NUMBER */\n          );\n        }\n\n        break;\n\n      case 'string':\n        p = prim(primitive, 1\n        /* STRING */\n        );\n        break;\n\n      case 'boolean':\n      case 'object': // assume null\n\n      case 'undefined':\n        p = prim(primitive, 0\n        /* IMMEDIATE */\n        );\n        break;\n\n      default:\n        throw new Error('Invalid primitive passed to pushPrimitive');\n    }\n\n    return op(30\n    /* Primitive */\n    , p);\n  }\n  /**\n   * Invoke a foreign function (a \"helper\") based on a statically known handle\n   *\n   * @param compile.handle A handle\n   * @param compile.params An optional list of expressions to compile\n   * @param compile.hash An optional list of named arguments (name + expression) to compile\n   */\n\n\n  function Call({\n    handle,\n    params,\n    hash\n  }) {\n    return [op(0\n    /* PushFrame */\n    ), op('SimpleArgs', {\n      params,\n      hash,\n      atNames: false\n    }), op(16\n    /* Helper */\n    , handle), op(1\n    /* PopFrame */\n    ), op(36\n    /* Fetch */\n    , _vm.$v0)];\n  }\n  /**\n   * Evaluate statements in the context of new dynamic scope entries. Move entries from the\n   * stack into named entries in the dynamic scope, then evaluate the statements, then pop\n   * the dynamic scope\n   *\n   * @param names a list of dynamic scope names\n   * @param block a function that returns a list of statements to evaluate\n   */\n\n\n  function DynamicScope(names, block) {\n    return [op(59\n    /* PushDynamicScope */\n    ), op(58\n    /* BindDynamicScope */\n    , strArray(names)), block(), op(60\n    /* PopDynamicScope */\n    )];\n  }\n  /**\n   * Yield to a block located at a particular symbol location.\n   *\n   * @param to the symbol containing the block to yield to\n   * @param params optional block parameters to yield to the block\n   */\n\n\n  function YieldBlock(to, params) {\n    return [op('SimpleArgs', {\n      params,\n      hash: null,\n      atNames: true\n    }), op(24\n    /* GetBlock */\n    , to), op(25\n    /* JitSpreadBlock */\n    ), op('Option', op('JitCompileBlock')), op(64\n    /* InvokeYield */\n    ), op(40\n    /* PopScope */\n    ), op(1\n    /* PopFrame */\n    )];\n  }\n  /**\n   * Push an (optional) yieldable block onto the stack. The yieldable block must be known\n   * statically at compile time.\n   *\n   * @param block An optional Compilable block\n   */\n\n\n  function PushYieldableBlock(block) {\n    return [PushSymbolTable(block && block.symbolTable), op(62\n    /* PushBlockScope */\n    ), op('PushCompilable', block)];\n  }\n  /**\n   * Invoke a block that is known statically at compile time.\n   *\n   * @param block a Compilable block\n   */\n\n\n  function InvokeStaticBlock(block) {\n    return [op(0\n    /* PushFrame */\n    ), op('PushCompilable', block), op('JitCompileBlock'), op(2\n    /* InvokeVirtual */\n    ), op(1\n    /* PopFrame */\n    )];\n  }\n  /**\n   * Invoke a static block, preserving some number of stack entries for use in\n   * updating.\n   *\n   * @param block A compilable block\n   * @param callerCount A number of stack entries to preserve\n   */\n\n\n  function InvokeStaticBlockWithStack(block, callerCount) {\n    var {\n      parameters\n    } = block.symbolTable;\n    var calleeCount = parameters.length;\n    var count = Math.min(callerCount, calleeCount);\n\n    if (count === 0) {\n      return InvokeStaticBlock(block);\n    }\n\n    var out = [];\n    out.push(op(0\n    /* PushFrame */\n    ));\n\n    if (count) {\n      out.push(op(39\n      /* ChildScope */\n      ));\n\n      for (var i = 0; i < count; i++) {\n        out.push(op(33\n        /* Dup */\n        , _vm.$fp, callerCount - i));\n        out.push(op(19\n        /* SetVariable */\n        , parameters[i]));\n      }\n    }\n\n    out.push(op('PushCompilable', block));\n    out.push(op('JitCompileBlock'));\n    out.push(op(2\n    /* InvokeVirtual */\n    ));\n\n    if (count) {\n      out.push(op(40\n      /* PopScope */\n      ));\n    }\n\n    out.push(op(1\n    /* PopFrame */\n    ));\n    return out;\n  }\n\n  function PushSymbolTable(table) {\n    if (table) {\n      return op(63\n      /* PushSymbolTable */\n      , serializable(table));\n    } else {\n      return PushPrimitive(null);\n    }\n  }\n\n  function SwitchCases(callback) {\n    // Setup the switch DSL\n    var clauses = [];\n    var count = 0;\n\n    function when(match, callback) {\n      clauses.push({\n        match,\n        callback,\n        label: `CLAUSE${count++}`\n      });\n    } // Call the callback\n\n\n    callback(when); // Emit the opcodes for the switch\n\n    var out = [op(69\n    /* Enter */\n    , 2), op(68\n    /* AssertSame */\n    ), op(32\n    /* ReifyU32 */\n    ), op('StartLabels')]; // First, emit the jump opcodes. We don't need a jump for the last\n    // opcode, since it bleeds directly into its clause.\n\n    for (var clause of clauses.slice(0, -1)) {\n      out.push(op(67\n      /* JumpEq */\n      , label(clause.label), clause.match));\n    } // Enumerate the clauses in reverse order. Earlier matches will\n    // require fewer checks.\n\n\n    for (var i = clauses.length - 1; i >= 0; i--) {\n      var _clause = clauses[i];\n      out.push(op('Label', _clause.label), op(34\n      /* Pop */\n      , 2), _clause.callback()); // The first match is special: it is placed directly before the END\n      // label, so no additional jump is needed at the end of it.\n\n      if (i !== 0) {\n        out.push(op(4\n        /* Jump */\n        , label('END')));\n      }\n    }\n\n    out.push(op('Label', 'END'), op('StopLabels'), op(70\n    /* Exit */\n    ));\n    return out;\n  }\n  /**\n   * A convenience for pushing some arguments on the stack and\n   * running some code if the code needs to be re-executed during\n   * updating execution if some of the arguments have changed.\n   *\n   * # Initial Execution\n   *\n   * The `args` function should push zero or more arguments onto\n   * the stack and return the number of arguments pushed.\n   *\n   * The `body` function provides the instructions to execute both\n   * during initial execution and during updating execution.\n   *\n   * Internally, this function starts by pushing a new frame, so\n   * that the body can return and sets the return point ($ra) to\n   * the ENDINITIAL label.\n   *\n   * It then executes the `args` function, which adds instructions\n   * responsible for pushing the arguments for the block to the\n   * stack. These arguments will be restored to the stack before\n   * updating execution.\n   *\n   * Next, it adds the Enter opcode, which marks the current position\n   * in the DOM, and remembers the current $pc (the next instruction)\n   * as the first instruction to execute during updating execution.\n   *\n   * Next, it runs `body`, which adds the opcodes that should\n   * execute both during initial execution and during updating execution.\n   * If the `body` wishes to finish early, it should Jump to the\n   * `FINALLY` label.\n   *\n   * Next, it adds the FINALLY label, followed by:\n   *\n   * - the Exit opcode, which finalizes the marked DOM started by the\n   *   Enter opcode.\n   * - the Return opcode, which returns to the current return point\n   *   ($ra).\n   *\n   * Finally, it adds the ENDINITIAL label followed by the PopFrame\n   * instruction, which restores $fp, $sp and $ra.\n   *\n   * # Updating Execution\n   *\n   * Updating execution for this `replayable` occurs if the `body` added an\n   * assertion, via one of the `JumpIf`, `JumpUnless` or `AssertSame` opcodes.\n   *\n   * If, during updating executon, the assertion fails, the initial VM is\n   * restored, and the stored arguments are pushed onto the stack. The DOM\n   * between the starting and ending markers is cleared, and the VM's cursor\n   * is set to the area just cleared.\n   *\n   * The return point ($ra) is set to -1, the exit instruction.\n   *\n   * Finally, the $pc is set to to the instruction saved off by the\n   * Enter opcode during initial execution, and execution proceeds as\n   * usual.\n   *\n   * The only difference is that when a `Return` instruction is\n   * encountered, the program jumps to -1 rather than the END label,\n   * and the PopFrame opcode is not needed.\n   */\n\n\n  function Replayable({\n    args: args$$1,\n    body\n  }) {\n    // Push the arguments onto the stack. The args() function\n    // tells us how many stack elements to retain for re-execution\n    // when updating.\n    var {\n      count,\n      actions\n    } = args$$1(); // Start a new label frame, to give END and RETURN\n    // a unique meaning.\n\n    return [op('StartLabels'), op(0\n    /* PushFrame */\n    ), // If the body invokes a block, its return will return to\n    // END. Otherwise, the return in RETURN will return to END.\n    op(6\n    /* ReturnTo */\n    , label('ENDINITIAL')), actions, // Start a new updating closure, remembering `count` elements\n    // from the stack. Everything after this point, and before END,\n    // will execute both initially and to update the block.\n    //\n    // The enter and exit opcodes also track the area of the DOM\n    // associated with this block. If an assertion inside the block\n    // fails (for example, the test value changes from true to false\n    // in an #if), the DOM is cleared and the program is re-executed,\n    // restoring `count` elements to the stack and executing the\n    // instructions between the enter and exit.\n    op(69\n    /* Enter */\n    , count), // Evaluate the body of the block. The body of the block may\n    // return, which will jump execution to END during initial\n    // execution, and exit the updating routine.\n    body(), // All execution paths in the body should run the FINALLY once\n    // they are done. It is executed both during initial execution\n    // and during updating execution.\n    op('Label', 'FINALLY'), // Finalize the DOM.\n    op(70\n    /* Exit */\n    ), // In initial execution, this is a noop: it returns to the\n    // immediately following opcode. In updating execution, this\n    // exits the updating routine.\n    op(5\n    /* Return */\n    ), // Cleanup code for the block. Runs on initial execution\n    // but not on updating.\n    op('Label', 'ENDINITIAL'), op(1\n    /* PopFrame */\n    ), op('StopLabels')];\n  }\n  /**\n   * A specialized version of the `replayable` convenience that allows the\n   * caller to provide different code based upon whether the item at\n   * the top of the stack is true or false.\n   *\n   * As in `replayable`, the `ifTrue` and `ifFalse` code can invoke `return`.\n   *\n   * During the initial execution, a `return` will continue execution\n   * in the cleanup code, which finalizes the current DOM block and pops\n   * the current frame.\n   *\n   * During the updating execution, a `return` will exit the updating\n   * routine, as it can reuse the DOM block and is always only a single\n   * frame deep.\n   */\n\n\n  function ReplayableIf({\n    args: args$$1,\n    ifTrue,\n    ifFalse\n  }) {\n    return Replayable({\n      args: args$$1,\n      body: () => {\n        var out = [// If the conditional is false, jump to the ELSE label.\n        op(66\n        /* JumpUnless */\n        , label('ELSE')), // Otherwise, execute the code associated with the true branch.\n        ifTrue(), // We're done, so return. In the initial execution, this runs\n        // the cleanup code. In the updating VM, it exits the updating\n        // routine.\n        op(4\n        /* Jump */\n        , label('FINALLY')), op('Label', 'ELSE')]; // If the conditional is false, and code associatied ith the\n        // false branch was provided, execute it. If there was no code\n        // associated with the false branch, jumping to the else statement\n        // has no other behavior.\n\n        if (ifFalse) {\n          out.push(ifFalse());\n        }\n\n        return out;\n      }\n    });\n  }\n\n  function pushBuilderOp(context, op$$1) {\n    var {\n      encoder,\n      syntax: {\n        program: {\n          mode,\n          constants\n        }\n      }\n    } = context;\n\n    switch (op$$1.op) {\n      case \"Option\"\n      /* Option */\n      :\n        return concat(context, option$1(op$$1));\n\n      case \"Label\"\n      /* Label */\n      :\n        return encoder.label(op$$1.op1);\n\n      case \"StartLabels\"\n      /* StartLabels */\n      :\n        return encoder.startLabels();\n\n      case \"StopLabels\"\n      /* StopLabels */\n      :\n        return encoder.stopLabels();\n\n      case \"JitCompileBlock\"\n      /* JitCompileBlock */\n      :\n        return concat(context, jitCompileBlock(mode));\n\n      case \"GetComponentLayout\"\n      /* GetComponentLayout */\n      :\n        return encoder.push(constants, compileLayoutOpcode(mode), op$$1.op1);\n\n      case \"SetBlock\"\n      /* SetBlock */\n      :\n        return encoder.push(constants, setBlock(mode), op$$1.op1);\n\n      default:\n        return (0, _util.exhausted)(op$$1);\n    }\n  }\n\n  function option$1(op$$1) {\n    var value = op$$1.op1;\n    return value === null ? NONE : value;\n  }\n\n  function compileLayoutOpcode(mode) {\n    return mode === \"aot\"\n    /* aot */\n    ? 94\n    /* GetAotComponentLayout */\n    : 95\n    /* GetJitComponentLayout */\n    ;\n  }\n\n  function jitCompileBlock(mode) {\n    return mode === \"jit\"\n    /* jit */\n    ? op(61\n    /* CompileBlock */\n    ) : NONE;\n  }\n\n  function setBlock(mode) {\n    return mode === \"aot\"\n    /* aot */\n    ? 20\n    /* SetAotBlock */\n    : 21\n    /* SetJitBlock */\n    ;\n  }\n\n  function pushCompileOp(context, action) {\n    concatStatements(context, compileOp(context, action));\n  }\n\n  function compileOp(context, action) {\n    switch (action.op) {\n      case \"CompileBlock\"\n      /* CompileBlock */\n      :\n        return CompileBlockOp(context, action);\n\n      case \"CompileInline\"\n      /* CompileInline */\n      :\n        return CompileInlineOp(context, action);\n\n      case \"InvokeStatic\"\n      /* InvokeStatic */\n      :\n        return InvokeStatic(context.syntax, action);\n\n      case \"Args\"\n      /* Args */\n      :\n        return CompileArgs(action.op1);\n\n      case \"PushCompilable\"\n      /* PushCompilable */\n      :\n        return PushCompilable(action.op1, context.syntax);\n\n      case \"DynamicComponent\"\n      /* DynamicComponent */\n      :\n        return DynamicComponent(context, action);\n\n      case \"IfResolvedComponent\"\n      /* IfResolvedComponent */\n      :\n        return IfResolvedComponent(context, action);\n\n      default:\n        return (0, _util.exhausted)(action);\n    }\n  }\n\n  function CompileBlockOp(context, op$$1) {\n    return compileBlock(op$$1.op1, context);\n  }\n\n  function CompileInlineOp(context, op$$1) {\n    var {\n      inline,\n      ifUnhandled\n    } = op$$1.op1;\n    var returned = compileInline(inline, context);\n\n    if (isHandled(returned)) {\n      return returned;\n    } else {\n      return ifUnhandled(inline);\n    }\n  }\n\n  function InvokeStatic(context, action) {\n    var compilable$$1 = action.op1;\n\n    if (context.program.mode === \"aot\"\n    /* aot */\n    ) {\n        var handle = compilable$$1.compile(context);\n\n        if (typeof handle !== 'number') {\n          return op('Error', {\n            problem: 'Invalid block',\n            start: 0,\n            end: 0\n          });\n        } // If the handle for the invoked component is not yet known (for example,\n        // because this is a recursive invocation and we're still compiling), push a\n        // function that will produce the correct handle when the heap is\n        // serialized.\n\n\n        if (handle === PLACEHOLDER_HANDLE) {\n          return op(3\n          /* InvokeStatic */\n          , () => compilable$$1.compile(context));\n        } else {\n          return op(3\n          /* InvokeStatic */\n          , handle);\n        }\n      } else {\n      return [op(29\n      /* Constant */\n      , other(action.op1)), op(61\n      /* CompileBlock */\n      ), op(2\n      /* InvokeVirtual */\n      )];\n    }\n  }\n\n  function DynamicComponent(context, action) {\n    var {\n      definition,\n      attrs,\n      params,\n      args: args$$1,\n      blocks,\n      atNames\n    } = action.op1;\n    var attrsBlock = attrs && attrs.length > 0 ? compilableBlock(attrs, context.meta) : null;\n    var compiled = Array.isArray(blocks) || blocks === null ? namedBlocks(blocks, context.meta) : blocks;\n    return InvokeDynamicComponent(context.meta, {\n      definition,\n      attrs: attrsBlock,\n      params,\n      hash: args$$1,\n      atNames,\n      blocks: compiled\n    });\n  }\n\n  function IfResolvedComponent(context, action) {\n    var {\n      name,\n      attrs,\n      blocks,\n      staticTemplate,\n      dynamicTemplate,\n      orElse\n    } = action.op1;\n    var component = resolveLayoutForTag(name, {\n      resolver: context.syntax.program.resolverDelegate,\n      meta: context.meta\n    });\n    var {\n      meta: meta$$1\n    } = context;\n\n    if (component !== null) {\n      var {\n        handle,\n        capabilities,\n        compilable: compilable$$1\n      } = component;\n      var attrsBlock = compilableBlock(attrs, meta$$1);\n      var compilableBlocks = namedBlocks(blocks, meta$$1);\n\n      if (compilable$$1 !== null) {\n        return staticTemplate(handle, capabilities, compilable$$1, {\n          attrs: attrsBlock,\n          blocks: compilableBlocks\n        });\n      } else {\n        return dynamicTemplate(handle, capabilities, {\n          attrs: attrsBlock,\n          blocks: compilableBlocks\n        });\n      }\n    } else if (orElse) {\n      return orElse();\n    } else {\n      throw new Error(`Compile Error: Cannot find component ${name}`);\n    }\n  }\n\n  function PushCompilable(block, context) {\n    if (block === null) {\n      return PushPrimitive(null);\n    } else if (context.program.mode === \"aot\"\n    /* aot */\n    ) {\n        var compiled = block.compile(context);\n\n        if (typeof compiled !== 'number') {\n          return op('Error', {\n            problem: 'Compile Error (TODO: thread better)',\n            start: 0,\n            end: 0\n          });\n        }\n\n        return PushPrimitive(compiled);\n      } else {\n      return op(29\n      /* Constant */\n      , other(block));\n    }\n  }\n\n  function pushOp(encoder, constants, op) {\n    if (op.op3 !== undefined) {\n      encoder.push(constants, op.op, op.op1, op.op2, op.op3);\n    } else if (op.op2 !== undefined) {\n      encoder.push(constants, op.op, op.op1, op.op2);\n    } else if (op.op1 !== undefined) {\n      encoder.push(constants, op.op, op.op1);\n    } else {\n      encoder.push(constants, op.op);\n    }\n  }\n\n  class Compilers {\n    constructor() {\n      this.names = {};\n      this.funcs = [];\n    }\n\n    add(name, func) {\n      this.names[name] = this.funcs.push(func) - 1;\n    }\n\n    compile(sexp, meta) {\n      var name = sexp[0];\n      var index = this.names[name];\n      var func = this.funcs[index];\n      return func(sexp, meta);\n    }\n\n  }\n\n  var EXPRESSIONS = new Compilers();\n  EXPRESSIONS.add(31\n  /* Concat */\n  , ([, parts]) => {\n    var out = [];\n\n    for (var part of parts) {\n      out.push(op('Expr', part));\n    }\n\n    out.push(op(28\n    /* Concat */\n    , parts.length));\n    return out;\n  });\n  EXPRESSIONS.add(30\n  /* Call */\n  , ([, name, params, hash], meta) => {\n    // TODO: triage this in the WF compiler\n    var start = 0;\n    var offset = 0;\n\n    if (isComponent(name, meta)) {\n      if (!params || params.length === 0) {\n        return op('Error', {\n          problem: 'component helper requires at least one argument',\n          start: start,\n          end: start + offset\n        });\n      }\n\n      var [definition, ...restArgs] = params;\n      return curryComponent({\n        definition,\n        params: restArgs,\n        hash,\n        atNames: false\n      }, meta.referrer);\n    }\n\n    var nameOrError = expectString(name, meta, 'Expected call head to be a string');\n\n    if (typeof nameOrError !== 'string') {\n      return nameOrError;\n    }\n\n    return op('IfResolved', {\n      kind: \"Helper\"\n      /* Helper */\n      ,\n      name: nameOrError,\n      andThen: handle => Call({\n        handle,\n        params,\n        hash\n      }),\n      span: {\n        start,\n        end: start + offset\n      }\n    });\n  });\n\n  function isGetContextualFree(opcode) {\n    return opcode[0] >= 34\n    /* GetContextualFreeStart */\n    ;\n  }\n\n  function isComponent(expr, meta) {\n    if (!Array.isArray(expr)) {\n      return false;\n    }\n\n    if (isGetContextualFree(expr)) {\n      var head = expr[1];\n\n      if (meta.upvars && meta.upvars[head] === 'component') {\n        return true;\n      } else {\n        return false;\n      }\n    }\n\n    return false;\n  }\n\n  EXPRESSIONS.add(32\n  /* GetSymbol */\n  , ([, sym, path]) => withPath(op(22\n  /* GetVariable */\n  , sym), path));\n  EXPRESSIONS.add(33\n  /* GetFree */\n  , ([, sym, path]) => withPath(op('ResolveFree', sym), path));\n  EXPRESSIONS.add(34\n  /* GetFreeInAppendSingleId */\n  , ([, sym, path]) => withPath(op('ResolveContextualFree', {\n    freeVar: sym,\n    context: 0\n    /* AppendSingleId */\n\n  }), path));\n  EXPRESSIONS.add(35\n  /* GetFreeInExpression */\n  , ([, sym, path]) => withPath(op('ResolveContextualFree', {\n    freeVar: sym,\n    context: 1\n    /* Expression */\n\n  }), path));\n  EXPRESSIONS.add(36\n  /* GetFreeInCallHead */\n  , ([, sym, path]) => withPath(op('ResolveContextualFree', {\n    freeVar: sym,\n    context: 2\n    /* CallHead */\n\n  }), path));\n  EXPRESSIONS.add(37\n  /* GetFreeInBlockHead */\n  , ([, sym, path]) => withPath(op('ResolveContextualFree', {\n    freeVar: sym,\n    context: 3\n    /* BlockHead */\n\n  }), path));\n  EXPRESSIONS.add(38\n  /* GetFreeInModifierHead */\n  , ([, sym, path]) => withPath(op('ResolveContextualFree', {\n    freeVar: sym,\n    context: 4\n    /* ModifierHead */\n\n  }), path));\n  EXPRESSIONS.add(39\n  /* GetFreeInComponentHead */\n  , ([, sym, path]) => withPath(op('ResolveContextualFree', {\n    freeVar: sym,\n    context: 5\n    /* ComponentHead */\n\n  }), path));\n\n  function withPath(expr, path) {\n    if (path === undefined || path.length === 0) return expr;\n    if (!Array.isArray(expr)) expr = [expr];\n\n    for (var i = 0; i < path.length; i++) {\n      expr.push(op(23\n      /* GetProperty */\n      , path[i]));\n    }\n\n    return expr;\n  }\n\n  EXPRESSIONS.add(29\n  /* Undefined */\n  , () => PushPrimitiveReference(undefined));\n  EXPRESSIONS.add(27\n  /* HasBlock */\n  , ([, block]) => {\n    return [op('Expr', block), op(26\n    /* HasBlock */\n    )];\n  });\n  EXPRESSIONS.add(28\n  /* HasBlockParams */\n  , ([, block]) => [op('Expr', block), op(25\n  /* JitSpreadBlock */\n  ), op('JitCompileBlock'), op(27\n  /* HasBlockParams */\n  )]);\n\n  function pushResolutionOp(encoder, context, operation, constants) {\n    switch (operation.op) {\n      case \"SimpleArgs\"\n      /* SimpleArgs */\n      :\n        concatExpressions(encoder, context, compileSimpleArgs(operation.op1.params, operation.op1.hash, operation.op1.atNames), constants);\n        break;\n\n      case \"Expr\"\n      /* Expr */\n      :\n        concatExpressions(encoder, context, expr(operation.op1, context.meta), constants);\n        break;\n\n      case \"IfResolved\"\n      /* IfResolved */\n      :\n        {\n          concatExpressions(encoder, context, ifResolved(context, operation), constants);\n          break;\n        }\n\n      case \"ResolveFree\"\n      /* ResolveFree */\n      :\n        {\n          throw new Error('Unimplemented HighLevelResolutionOpcode.ResolveFree');\n        }\n\n      case \"ResolveContextualFree\"\n      /* ResolveContextualFree */\n      :\n        {\n          var {\n            freeVar,\n            context: expressionContext\n          } = operation.op1;\n\n          if (context.meta.asPartial) {\n            var name = context.meta.upvars[freeVar];\n            concatExpressions(encoder, context, [op(105\n            /* ResolveMaybeLocal */\n            , name)], constants);\n            break;\n          }\n\n          switch (expressionContext) {\n            case 1\n            /* Expression */\n            :\n              {\n                // in classic mode, this is always a this-fallback\n                var _name2 = context.meta.upvars[freeVar];\n                concatExpressions(encoder, context, [op(22\n                /* GetVariable */\n                , 0), op(23\n                /* GetProperty */\n                , _name2)], constants);\n                break;\n              }\n\n            case 0\n            /* AppendSingleId */\n            :\n              {\n                var resolver = context.syntax.program.resolverDelegate;\n                var _name3 = context.meta.upvars[freeVar];\n                var resolvedHelper = resolver.lookupHelper(_name3, context.meta.referrer);\n                var expressions;\n\n                if (resolvedHelper) {\n                  expressions = Call({\n                    handle: resolvedHelper,\n                    params: null,\n                    hash: null\n                  });\n                } else {\n                  // in classic mode, this is always a this-fallback\n                  expressions = [op(22\n                  /* GetVariable */\n                  , 0), op(23\n                  /* GetProperty */\n                  , _name3)];\n                }\n\n                concatExpressions(encoder, context, expressions, constants);\n                break;\n              }\n\n            default:\n              throw new Error(`unimplemented: Can't evaluate expression in context ${expressionContext}`);\n          }\n\n          break;\n        }\n\n      default:\n        return (0, _util.exhausted)(operation);\n    }\n  }\n\n  function expr(expression$$1, meta$$1) {\n    if (Array.isArray(expression$$1)) {\n      return EXPRESSIONS.compile(expression$$1, meta$$1);\n    } else {\n      return [PushPrimitive(expression$$1), op(31\n      /* PrimitiveReference */\n      )];\n    }\n  }\n\n  function compileSimpleArgs(params, hash, atNames) {\n    var out = [];\n    var {\n      count,\n      actions\n    } = CompilePositional(params);\n    out.push(actions);\n    var flags = count << 4;\n    if (atNames) flags |= 0b1000;\n    var names = _util.EMPTY_ARRAY;\n\n    if (hash) {\n      names = hash[0];\n      var val = hash[1];\n\n      for (var i = 0; i < val.length; i++) {\n        out.push(op('Expr', val[i]));\n      }\n    }\n\n    out.push(op(84\n    /* PushArgs */\n    , strArray(names), strArray(_util.EMPTY_ARRAY), flags));\n    return out;\n  }\n\n  function ifResolved(context, {\n    op1\n  }) {\n    var {\n      kind,\n      name,\n      andThen,\n      orElse,\n      span\n    } = op1;\n    var resolved = resolve(context.syntax.program.resolverDelegate, kind, name, context.meta.referrer);\n\n    if (resolved !== null) {\n      return andThen(resolved);\n    } else if (orElse) {\n      return orElse();\n    } else {\n      return error(`Unexpected ${kind} ${name}`, span.start, span.end);\n    }\n  }\n\n  function resolve(resolver, kind, name, referrer) {\n    switch (kind) {\n      case \"Modifier\"\n      /* Modifier */\n      :\n        return resolver.lookupModifier(name, referrer);\n\n      case \"Helper\"\n      /* Helper */\n      :\n        return resolver.lookupHelper(name, referrer);\n\n      case \"ComponentDefinition\"\n      /* ComponentDefinition */\n      :\n        {\n          var component = resolver.lookupComponent(name, referrer);\n          return component && component.handle;\n        }\n    }\n  }\n\n  var NONE = {\n    'no-action': true\n  };\n  _exports.NONE = NONE;\n  var UNHANDLED = {\n    'not-handled': true\n  };\n  _exports.UNHANDLED = UNHANDLED;\n\n  function isNoAction(actions) {\n    return actions && !!actions['no-action'];\n  }\n\n  function isHandled(actions) {\n    return !actions || !actions['not-handled'];\n  }\n\n  function concat(context, action) {\n    if (isNoAction(action)) {\n      return;\n    } else if (Array.isArray(action)) {\n      for (var item of action) {\n        concat(context, item);\n      }\n    } else if (action.type === 'Simple') {\n      pushBuilderOp(context, action);\n    } else {\n      pushOp(context.encoder, context.syntax.program.constants, action);\n    }\n  }\n\n  function concatExpressions(encoder, context, action, constants) {\n    if (isNoAction(action)) {\n      return;\n    } else if (Array.isArray(action)) {\n      for (var item of action) {\n        concatExpressions(encoder, context, item, constants);\n      }\n    } else if (action.type === 'Number') {\n      pushOp(encoder, constants, action);\n    } else if (action.type === 'Resolution') {\n      pushResolutionOp(encoder, context, action, constants);\n    } else if (action.type === 'Simple') {\n      pushBuilderOp(context, action);\n    } else if (action.type === 'Error') {\n      encoder.error({\n        problem: action.op1.problem,\n        span: {\n          start: action.op1.start,\n          end: action.op1.end\n        }\n      });\n    } else {\n      throw (0, _util.assertNever)(action, 'unexpected action kind');\n    }\n  }\n\n  function concatStatements(context, action) {\n    if (isNoAction(action)) {\n      return;\n    } else if (Array.isArray(action)) {\n      for (var item of action) {\n        concatStatements(context, item);\n      }\n    } else if (action.type === 'Number') {\n      pushOp(context.encoder, context.syntax.program.constants, action);\n    } else {\n      if (action.type === 'Compile') {\n        pushCompileOp(context, action);\n      } else if (action.type === 'Resolution') {\n        pushResolutionOp(context.encoder, context, action, context.syntax.program.constants);\n      } else if (action.type === 'Simple') {\n        pushBuilderOp(context, action);\n      } else if (action.type === 'Error') {} else {\n        throw (0, _util.assertNever)(action, `unexpected action type`);\n      }\n    }\n  }\n\n  function populateBuiltins(blocks, inlines) {\n    blocks.add('if', (params, _hash, blocks) => {\n      if (!params || params.length !== 1) {\n        throw new Error(`SYNTAX ERROR: #if requires a single argument`);\n      }\n\n      return ReplayableIf({\n        args() {\n          return {\n            count: 1,\n            actions: [op('Expr', params[0]), op(71\n            /* ToBoolean */\n            )]\n          };\n        },\n\n        ifTrue() {\n          return InvokeStaticBlock(blocks.get('default'));\n        },\n\n        ifFalse() {\n          if (blocks.has('else')) {\n            return InvokeStaticBlock(blocks.get('else'));\n          } else {\n            return NONE;\n          }\n        }\n\n      });\n    });\n    blocks.add('unless', (params, _hash, blocks) => {\n      if (!params || params.length !== 1) {\n        throw new Error(`SYNTAX ERROR: #unless requires a single argument`);\n      }\n\n      return ReplayableIf({\n        args() {\n          return {\n            count: 1,\n            actions: [op('Expr', params[0]), op(71\n            /* ToBoolean */\n            )]\n          };\n        },\n\n        ifTrue() {\n          if (blocks.has('else')) {\n            return InvokeStaticBlock(blocks.get('else'));\n          } else {\n            return NONE;\n          }\n        },\n\n        ifFalse() {\n          return InvokeStaticBlock(blocks.get('default'));\n        }\n\n      });\n    });\n    blocks.add('with', (params, _hash, blocks) => {\n      if (!params || params.length !== 1) {\n        throw new Error(`SYNTAX ERROR: #with requires a single argument`);\n      }\n\n      return ReplayableIf({\n        args() {\n          return {\n            count: 2,\n            actions: [op('Expr', params[0]), op(33\n            /* Dup */\n            , _vm.$sp, 0), op(71\n            /* ToBoolean */\n            )]\n          };\n        },\n\n        ifTrue() {\n          return InvokeStaticBlockWithStack(blocks.get('default'), 1);\n        },\n\n        ifFalse() {\n          if (blocks.has('else')) {\n            return InvokeStaticBlock(blocks.get('else'));\n          } else {\n            return NONE;\n          }\n        }\n\n      });\n    });\n    blocks.add('let', (params, _hash, blocks) => {\n      if (!params) {\n        return error('let requires arguments', 0, 0);\n      }\n\n      var {\n        count,\n        actions\n      } = CompilePositional(params);\n      return [actions, InvokeStaticBlockWithStack(blocks.get('default'), count)];\n    });\n    blocks.add('each', (params, hash, blocks) => {\n      return Replayable({\n        args() {\n          var actions;\n\n          if (hash && hash[0][0] === 'key') {\n            actions = [op('Expr', hash[1][0])];\n          } else {\n            actions = [PushPrimitiveReference(null)];\n          }\n\n          actions.push(op('Expr', params[0]));\n          return {\n            count: 2,\n            actions\n          };\n        },\n\n        body() {\n          var out = [op(74\n          /* PutIterator */\n          ), op(66\n          /* JumpUnless */\n          , label('ELSE')), op(0\n          /* PushFrame */\n          ), op(33\n          /* Dup */\n          , _vm.$fp, 1), op(6\n          /* ReturnTo */\n          , label('ITER')), op(72\n          /* EnterList */\n          , label('BODY')), op('Label', 'ITER'), op(75\n          /* Iterate */\n          , label('BREAK')), op('Label', 'BODY'), InvokeStaticBlockWithStack(blocks.get('default'), 2), op(34\n          /* Pop */\n          , 2), op(4\n          /* Jump */\n          , label('FINALLY')), op('Label', 'BREAK'), op(73\n          /* ExitList */\n          ), op(1\n          /* PopFrame */\n          ), op(4\n          /* Jump */\n          , label('FINALLY')), op('Label', 'ELSE')];\n\n          if (blocks.has('else')) {\n            out.push(InvokeStaticBlock(blocks.get('else')));\n          }\n\n          return out;\n        }\n\n      });\n    });\n    blocks.add('in-element', (params, hash, blocks) => {\n      if (!params || params.length !== 1) {\n        throw new Error(`SYNTAX ERROR: #in-element requires a single argument`);\n      }\n\n      return ReplayableIf({\n        args() {\n          var [keys, values] = hash;\n          var actions = [];\n\n          for (var i = 0; i < keys.length; i++) {\n            var key = keys[i];\n\n            if (key === 'guid' || key === 'insertBefore') {\n              actions.push(op('Expr', values[i]));\n            } else {\n              throw new Error(`SYNTAX ERROR: #in-element does not take a \\`${keys[0]}\\` option`);\n            }\n          }\n\n          actions.push(op('Expr', params[0]), op(33\n          /* Dup */\n          , _vm.$sp, 0));\n          return {\n            count: 4,\n            actions\n          };\n        },\n\n        ifTrue() {\n          return [op(50\n          /* PushRemoteElement */\n          ), InvokeStaticBlock(blocks.get('default')), op(56\n          /* PopRemoteElement */\n          )];\n        }\n\n      });\n    });\n    blocks.add('-with-dynamic-vars', (_params, hash, blocks) => {\n      if (hash) {\n        var [names, expressions] = hash;\n        var {\n          actions\n        } = CompilePositional(expressions);\n        return [actions, DynamicScope(names, () => {\n          return InvokeStaticBlock(blocks.get('default'));\n        })];\n      } else {\n        return InvokeStaticBlock(blocks.get('default'));\n      }\n    });\n    blocks.add('component', (_params, hash, blocks, context) => {\n      var tag = _params[0];\n\n      if (typeof tag === 'string') {\n        var returned = StaticComponentHelper(context, _params[0], hash, blocks.get('default'));\n        if (isHandled(returned)) return returned;\n      }\n\n      var [definition, ...params] = _params;\n      return op('DynamicComponent', {\n        definition,\n        attrs: null,\n        params,\n        args: hash,\n        atNames: false,\n        blocks\n      });\n    });\n    inlines.add('component', (_name, _params, hash, context) => {\n      var tag = _params && _params[0];\n\n      if (typeof tag === 'string') {\n        var returned = StaticComponentHelper(context, tag, hash, null);\n        if (returned !== UNHANDLED) return returned;\n      }\n\n      var [definition, ...params] = _params;\n      return InvokeDynamicComponent(context.meta, {\n        definition,\n        attrs: null,\n        params,\n        hash,\n        atNames: false,\n        blocks: EMPTY_BLOCKS\n      });\n    });\n    return {\n      blocks,\n      inlines\n    };\n  }\n\n  class MacrosImpl {\n    constructor() {\n      var {\n        blocks,\n        inlines\n      } = populateBuiltins(new Blocks(), new Inlines());\n      this.blocks = blocks;\n      this.inlines = inlines;\n    }\n\n  }\n\n  _exports.MacrosImpl = MacrosImpl;\n\n  class Blocks {\n    constructor() {\n      this.names = (0, _util.dict)();\n      this.funcs = [];\n    }\n\n    add(name, func) {\n      this.funcs.push(func);\n      this.names[name] = this.funcs.length - 1;\n    }\n\n    addMissing(func) {\n      this.missing = func;\n    }\n\n    compile(name, params, hash, blocks, context) {\n      var index = this.names[name];\n      var macroContext = {\n        resolver: context.syntax.program.resolverDelegate,\n        meta: context.meta\n      };\n\n      if (index === undefined) {\n        var func = this.missing;\n        var handled = func(name, params, hash, blocks, macroContext);\n        return handled;\n      } else {\n        var _func = this.funcs[index];\n        return _func(params, hash, blocks, macroContext);\n      }\n    }\n\n  }\n\n  class Inlines {\n    constructor() {\n      this.names = (0, _util.dict)();\n      this.funcs = [];\n    }\n\n    add(name, func) {\n      this.funcs.push(func);\n      this.names[name] = this.funcs.length - 1;\n    }\n\n    addMissing(func) {\n      this.missing = func;\n    }\n\n    compile(sexp, context) {\n      var [, value] = sexp; // TODO: Fix this so that expression macros can return\n      // things like components, so that {{component foo}}\n      // is the same as {{(component foo)}}\n\n      if (!Array.isArray(value)) return UNHANDLED;\n      var name;\n      var params;\n      var hash;\n\n      if (value[0] === 30\n      /* Call */\n      ) {\n          var nameOrError = expectString(value[1], context.meta, 'Expected head of call to be a string');\n\n          if (typeof nameOrError !== 'string') {\n            return nameOrError;\n          }\n\n          name = nameOrError;\n          params = value[2];\n          hash = value[3];\n        } else if (isGet(value)) {\n        var pathName = simplePathName(value, context.meta);\n\n        if (pathName === null) {\n          return UNHANDLED;\n        }\n\n        name = pathName;\n        params = null;\n        hash = null;\n      } else {\n        return UNHANDLED;\n      }\n\n      var index = this.names[name];\n      var macroContext = {\n        resolver: context.syntax.program.resolverDelegate,\n        meta: context.meta\n      };\n\n      if (index === undefined && this.missing) {\n        var func = this.missing;\n        return func(name, params, hash, macroContext);\n      } else if (index !== undefined) {\n        var _func2 = this.funcs[index];\n        return _func2(name, params, hash, macroContext);\n      } else {\n        return UNHANDLED;\n      }\n    }\n\n  }\n\n  function syntaxCompilationContext(program, macros) {\n    return {\n      program,\n      macros\n    };\n  }\n\n  function Context(resolver = {}, mode = \"aot\"\n  /* aot */\n  , macros = new MacrosImpl()) {\n    return {\n      program: new ProgramCompilationContext(new DefaultCompileTimeResolverDelegate(resolver), mode),\n      macros\n    };\n  }\n\n  function JitContext(resolver = {}, macros = new MacrosImpl()) {\n    return {\n      program: new JitProgramCompilationContext(new DefaultCompileTimeResolverDelegate(resolver)),\n      macros\n    };\n  }\n\n  function AotContext(resolver = {}, macros = new MacrosImpl()) {\n    return {\n      program: new ProgramCompilationContext(new DefaultCompileTimeResolverDelegate(resolver), \"aot\"\n      /* aot */\n      ),\n      macros\n    };\n  }\n\n  function templateCompilationContext(syntax, meta) {\n    var encoder = new EncoderImpl();\n    return {\n      syntax,\n      encoder,\n      meta\n    };\n  }\n\n  var STATEMENTS = new Compilers();\n  var INFLATE_ATTR_TABLE = ['class', 'id', 'value', 'name', 'type', 'style', 'href'];\n  var INFLATE_TAG_TABLE = ['div', 'span', 'p', 'a'];\n\n  function inflateTagName(tagName) {\n    return typeof tagName === 'string' ? tagName : INFLATE_TAG_TABLE[tagName];\n  }\n\n  function inflateAttrName(attrName) {\n    return typeof attrName === 'string' ? attrName : INFLATE_ATTR_TABLE[attrName];\n  }\n\n  STATEMENTS.add(3\n  /* Comment */\n  , sexp => op(42\n  /* Comment */\n  , sexp[1]));\n  STATEMENTS.add(13\n  /* CloseElement */\n  , () => op(55\n  /* CloseElement */\n  ));\n  STATEMENTS.add(12\n  /* FlushElement */\n  , () => op(54\n  /* FlushElement */\n  ));\n  STATEMENTS.add(4\n  /* Modifier */\n  , (sexp, meta) => {\n    var [, name, params, hash] = sexp;\n    var stringName = expectString(name, meta, 'Expected modifier head to be a string');\n\n    if (typeof stringName !== 'string') {\n      return stringName;\n    }\n\n    return op('IfResolved', {\n      kind: \"Modifier\"\n      /* Modifier */\n      ,\n      name: stringName,\n      andThen: handle => [op(0\n      /* PushFrame */\n      ), op('SimpleArgs', {\n        params,\n        hash,\n        atNames: false\n      }), op(57\n      /* Modifier */\n      , handle), op(1\n      /* PopFrame */\n      )],\n      span: {\n        start: 0,\n        end: 0\n      }\n    });\n  });\n  STATEMENTS.add(14\n  /* StaticAttr */\n  , ([, name, value, namespace]) => op(51\n  /* StaticAttr */\n  , inflateAttrName(name), value, namespace !== null && namespace !== void 0 ? namespace : null));\n  STATEMENTS.add(24\n  /* StaticComponentAttr */\n  , ([, name, value, namespace]) => op(108\n  /* StaticComponentAttr */\n  , inflateAttrName(name), value, namespace !== null && namespace !== void 0 ? namespace : null));\n  STATEMENTS.add(15\n  /* DynamicAttr */\n  , ([, name, value, namespace]) => [op('Expr', value), op(52\n  /* DynamicAttr */\n  , inflateAttrName(name), false, namespace !== null && namespace !== void 0 ? namespace : null)]);\n  STATEMENTS.add(22\n  /* TrustingDynamicAttr */\n  , ([, name, value, namespace]) => [op('Expr', value), op(52\n  /* DynamicAttr */\n  , inflateAttrName(name), true, namespace !== null && namespace !== void 0 ? namespace : null)]);\n  STATEMENTS.add(16\n  /* ComponentAttr */\n  , ([, name, value, namespace]) => [op('Expr', value), op(53\n  /* ComponentAttr */\n  , inflateAttrName(name), false, namespace !== null && namespace !== void 0 ? namespace : null)]);\n  STATEMENTS.add(23\n  /* TrustingComponentAttr */\n  , ([, name, value, namespace]) => [op('Expr', value), op(53\n  /* ComponentAttr */\n  , inflateAttrName(name), true, namespace !== null && namespace !== void 0 ? namespace : null)]);\n  STATEMENTS.add(10\n  /* OpenElement */\n  , ([, tag]) => {\n    return op(48\n    /* OpenElement */\n    , inflateTagName(tag));\n  });\n  STATEMENTS.add(11\n  /* OpenElementWithSplat */\n  , ([, tag]) => {\n    return [op(91\n    /* PutComponentOperations */\n    ), op(48\n    /* OpenElement */\n    , inflateTagName(tag))];\n  });\n  STATEMENTS.add(8\n  /* Component */\n  , ([, tag, attrs, args$$1, blocks]) => {\n    if (typeof tag === 'string') {\n      return op('IfResolvedComponent', {\n        name: tag,\n        attrs,\n        blocks,\n        staticTemplate: (layoutHandle, capabilities, template, {\n          blocks,\n          attrs\n        }) => {\n          return [op(80\n          /* PushComponentDefinition */\n          , layoutHandle), InvokeStaticComponent({\n            capabilities,\n            layout: template,\n            attrs,\n            params: null,\n            hash: args$$1,\n            blocks\n          })];\n        },\n        dynamicTemplate: (layoutHandle, capabilities, {\n          attrs,\n          blocks\n        }) => {\n          return [op(80\n          /* PushComponentDefinition */\n          , layoutHandle), InvokeComponent({\n            capabilities,\n            attrs,\n            params: null,\n            hash: args$$1,\n            atNames: true,\n            blocks\n          })];\n        }\n      });\n    } else {\n      return op('DynamicComponent', {\n        definition: tag,\n        attrs,\n        params: null,\n        args: args$$1,\n        blocks,\n        atNames: true\n      });\n    }\n  });\n  STATEMENTS.add(19\n  /* Partial */\n  , ([, name, evalInfo], meta) => ReplayableIf({\n    args() {\n      return {\n        count: 2,\n        actions: [op('Expr', name), op(33\n        /* Dup */\n        , _vm.$sp, 0)]\n      };\n    },\n\n    ifTrue() {\n      return [op(104\n      /* InvokePartial */\n      , templateMeta(meta.referrer), strArray(meta.evalSymbols), arr(evalInfo)), op(40\n      /* PopScope */\n      ), op(1\n      /* PopFrame */\n      )];\n    }\n\n  }));\n  STATEMENTS.add(18\n  /* Yield */\n  , ([, to, params]) => YieldBlock(to, params));\n  STATEMENTS.add(17\n  /* AttrSplat */\n  , ([, to]) => YieldBlock(to, _util.EMPTY_ARRAY));\n  STATEMENTS.add(26\n  /* Debugger */\n  , ([, evalInfo], meta) => op(106\n  /* Debugger */\n  , strArray(meta.evalSymbols), arr(evalInfo)));\n  STATEMENTS.add(1\n  /* Append */\n  , sexp => {\n    var [, value] = sexp;\n    return op('CompileInline', {\n      inline: sexp,\n      ifUnhandled: () => [op(0\n      /* PushFrame */\n      ), op(\"Expr\"\n      /* Expr */\n      , value), op(3\n      /* InvokeStatic */\n      , {\n        type: 'stdlib',\n        value: 'cautious-append'\n      }), op(1\n      /* PopFrame */\n      )]\n    });\n  });\n  STATEMENTS.add(2\n  /* TrustingAppend */\n  , sexp => {\n    var [, value] = sexp;\n\n    if (typeof value === 'string') {\n      return op(41\n      /* Text */\n      , value);\n    } // macro was ignoring trusting flag doesn't seem like {{{}}} should\n    // even be passed to macros, there is no {{{component}}}\n\n\n    return [op(0\n    /* PushFrame */\n    ), op(\"Expr\"\n    /* Expr */\n    , value), op(3\n    /* InvokeStatic */\n    , {\n      type: 'stdlib',\n      value: 'trusting-append'\n    }), op(1\n    /* PopFrame */\n    )];\n  });\n  STATEMENTS.add(6\n  /* Block */\n  , sexp => {\n    return op('CompileBlock', sexp);\n  });\n  var PLACEHOLDER_HANDLE = -1;\n\n  class CompilableTemplateImpl {\n    constructor(statements, meta$$1, // Part of CompilableTemplate\n    symbolTable) {\n      this.statements = statements;\n      this.meta = meta$$1;\n      this.symbolTable = symbolTable;\n      this.compiled = null;\n    } // Part of CompilableTemplate\n\n\n    compile(context) {\n      return maybeCompile(this, context);\n    }\n\n  }\n\n  function compilable(layout) {\n    var block = layout.block;\n    return new CompilableTemplateImpl(block.statements, meta(layout), {\n      symbols: block.symbols,\n      hasEval: block.hasEval\n    });\n  }\n\n  function maybeCompile(compilable, context) {\n    if (compilable.compiled !== null) return compilable.compiled;\n    compilable.compiled = PLACEHOLDER_HANDLE;\n    var {\n      statements,\n      meta: meta$$1\n    } = compilable;\n    var result = compileStatements(statements, meta$$1, context);\n    (0, _program.patchStdlibs)(context.program);\n    compilable.compiled = result;\n    return result;\n  }\n\n  function compileStatements(statements, meta$$1, syntaxContext) {\n    var sCompiler = STATEMENTS;\n    var context = templateCompilationContext(syntaxContext, meta$$1);\n\n    for (var i = 0; i < statements.length; i++) {\n      concatStatements(context, sCompiler.compile(statements[i], context.meta));\n    }\n\n    var handle = context.encoder.commit(syntaxContext.program.heap, meta$$1.size);\n    return handle;\n  }\n\n  function compilableBlock(overloadBlock, containing) {\n    var block = Array.isArray(overloadBlock) ? {\n      statements: overloadBlock,\n      parameters: _util.EMPTY_ARRAY\n    } : overloadBlock;\n    return new CompilableTemplateImpl(block.statements, containing, {\n      parameters: block.parameters\n    });\n  }\n\n  class NamedBlocksImpl {\n    constructor(blocks) {\n      this.blocks = blocks;\n      this.names = blocks ? Object.keys(blocks) : [];\n    }\n\n    get(name) {\n      if (!this.blocks) return null;\n      return this.blocks[name] || null;\n    }\n\n    has(name) {\n      var {\n        blocks\n      } = this;\n      return blocks !== null && name in blocks;\n    }\n\n    with(name, block) {\n      var {\n        blocks\n      } = this;\n\n      if (blocks) {\n        return new NamedBlocksImpl((0, _util.assign)({}, blocks, {\n          [name]: block\n        }));\n      } else {\n        return new NamedBlocksImpl({\n          [name]: block\n        });\n      }\n    }\n\n    get hasAny() {\n      return this.blocks !== null;\n    }\n\n  }\n\n  var EMPTY_BLOCKS = new NamedBlocksImpl(null);\n  _exports.EMPTY_BLOCKS = EMPTY_BLOCKS;\n\n  function namedBlocks(blocks, meta) {\n    if (blocks === null) {\n      return EMPTY_BLOCKS;\n    }\n\n    var out = (0, _util.dict)();\n    var [keys, values] = blocks;\n\n    for (var i = 0; i < keys.length; i++) {\n      out[keys[i]] = compilableBlock(values[i], meta);\n    }\n\n    return new NamedBlocksImpl(out);\n  }\n\n  function expectString(expr, meta, desc) {\n    if (!meta.upvars) {\n      return error(`${desc}, but there were no free variables in the template`, 0, 0);\n    }\n\n    if (!Array.isArray(expr)) {\n      throw new Error(`${desc}, got ${JSON.stringify(expr)}`);\n    }\n\n    if (isGet(expr)) {\n      var name = simplePathName(expr, meta);\n      if (name !== null) return name;\n    }\n\n    throw new Error(`${desc}, got ${JSON.stringify(expr)}`);\n  }\n\n  function simplePathName(opcode, meta) {\n    if (opcode.length === 3 && opcode[2].length > 0) {\n      return null;\n    }\n\n    if (isGetFree(opcode)) {\n      return meta.upvars[opcode[1]];\n    }\n\n    return null;\n  }\n\n  function isGet(opcode) {\n    return opcode.length >= 2 && opcode[0] >= 32\n    /* GetSymbol */\n    ;\n  }\n\n  function isGetFree(opcode) {\n    return opcode[0] >= 33\n    /* GetFree */\n    ;\n  }\n\n  function compileInline(sexp, context) {\n    return context.syntax.macros.inlines.compile(sexp, context);\n  }\n\n  function compileBlock(block, context) {\n    var [, name, params, hash, named] = block;\n    var blocks = namedBlocks(named, context.meta);\n    var nameOrError = expectString(name, context.meta, 'Expected block head to be a string');\n\n    if (typeof nameOrError !== 'string') {\n      return nameOrError;\n    }\n\n    return context.syntax.macros.blocks.compile(nameOrError, params || [], hash, blocks, context);\n  }\n\n  function commit(heap, scopeSize, buffer) {\n    var handle = heap.malloc();\n\n    for (var i = 0; i < buffer.length; i++) {\n      var value = buffer[i];\n\n      if (typeof value === 'function') {\n        heap.pushPlaceholder(value);\n      } else if (typeof value === 'object') {\n        heap.pushStdlib(value);\n      } else {\n        heap.push(value);\n      }\n    }\n\n    heap.finishMalloc(handle, scopeSize);\n    return handle;\n  }\n\n  var debugCompiler;\n  _exports.debugCompiler = debugCompiler;\n\n  class LabelsImpl {\n    constructor() {\n      this.labels = (0, _util.dict)();\n      this.targets = [];\n    }\n\n    label(name, index) {\n      this.labels[name] = index;\n    }\n\n    target(at, target) {\n      this.targets.push({\n        at,\n        target\n      });\n    }\n\n    patch(encoder) {\n      var {\n        targets,\n        labels\n      } = this;\n\n      for (var i = 0; i < targets.length; i++) {\n        var {\n          at,\n          target\n        } = targets[i];\n        var address = labels[target] - at;\n        encoder.patch(at, address);\n      }\n    }\n\n  }\n\n  function error(problem, start, end) {\n    return op('Error', {\n      problem,\n      start,\n      end\n    });\n  }\n\n  function op(name, op1, op2, op3) {\n    if (typeof name === 'number') {\n      if (op3 !== undefined) {\n        return {\n          type: 'Number',\n          op: name,\n          op1,\n          op2,\n          op3\n        };\n      } else if (op2 !== undefined) {\n        return {\n          type: 'Number',\n          op: name,\n          op1,\n          op2\n        };\n      } else if (op1 !== undefined) {\n        return {\n          type: 'Number',\n          op: name,\n          op1: op1\n        };\n      } else {\n        return {\n          type: 'Number',\n          op: name\n        };\n      }\n    } else {\n      var type;\n\n      if (isCompileOpcode(name)) {\n        type = 'Compile';\n      } else if (isResolutionOpcode(name)) {\n        type = 'Resolution';\n      } else if (isSimpleOpcode(name)) {\n        type = 'Simple';\n      } else if (isErrorOpcode(name)) {\n        type = 'Error';\n      } else {\n        throw new Error(`Exhausted ${name}`);\n      }\n\n      if (op1 === undefined) {\n        return {\n          type,\n          op: name,\n          op1: undefined\n        };\n      } else {\n        return {\n          type,\n          op: name,\n          op1\n        };\n      }\n    }\n  }\n\n  class EncoderImpl {\n    constructor() {\n      this.labelsStack = new _util.Stack();\n      this.encoder = new _encoder.InstructionEncoderImpl([]);\n      this.errors = [];\n    }\n\n    error(error) {\n      this.encoder.encode(30\n      /* Primitive */\n      , 0);\n      this.errors.push(error);\n    }\n\n    commit(heap, size) {\n      this.encoder.encode(5\n      /* Return */\n      , 1024\n      /* MACHINE_MASK */\n      );\n      var handle = commit(heap, size, this.encoder.buffer);\n\n      if (this.errors.length) {\n        return {\n          errors: this.errors,\n          handle\n        };\n      } else {\n        return handle;\n      }\n    }\n\n    push(constants, name, ...args) {\n      if ((0, _vm.isMachineOp)(name)) {\n        var operands = args.map((operand, i) => this.operand(constants, operand, i));\n        return this.encoder.encode(name, 1024\n        /* MACHINE_MASK */\n        , ...operands);\n      } else {\n        var _operands = args.map((operand, i) => this.operand(constants, operand, i));\n\n        return this.encoder.encode(name, 0, ..._operands);\n      }\n    }\n\n    operand(constants, operand, index) {\n      if (operand && typeof operand === 'object' && operand.type === 'label') {\n        this.currentLabels.target(this.encoder.size + index, operand.value);\n        return -1;\n      }\n\n      return constant(constants, operand);\n    }\n\n    get currentLabels() {\n      return this.labelsStack.current;\n    }\n\n    label(name) {\n      this.currentLabels.label(name, this.encoder.size);\n    }\n\n    startLabels() {\n      this.labelsStack.push(new LabelsImpl());\n    }\n\n    stopLabels() {\n      var label = this.labelsStack.pop();\n      label.patch(this.encoder);\n    }\n\n  }\n\n  function constant(constants, operand) {\n    if (typeof operand === 'number' || typeof operand === 'function') {\n      return operand;\n    }\n\n    if (typeof operand === 'boolean') {\n      return operand === true ? 1 : 0;\n    }\n\n    if (typeof operand === 'string') {\n      return constants.string(operand);\n    }\n\n    if (operand === null) {\n      return 0;\n    }\n\n    switch (operand.type) {\n      case 'array':\n        return constants.array(operand.value);\n\n      case 'string-array':\n        return constants.stringArray(operand.value);\n\n      case 'serializable':\n        return constants.serializable(operand.value);\n\n      case 'template-meta':\n        return constants.templateMeta(operand.value);\n\n      case 'other':\n        // TODO: Bad cast\n        return constants.other(operand.value);\n\n      case 'stdlib':\n        return operand;\n\n      case 'primitive':\n        {\n          switch (operand.value.type) {\n            case 1\n            /* STRING */\n            :\n              return (0, _util.encodeHandle)(constants.string(operand.value.primitive), 1073741823\n              /* STRING_MAX_INDEX */\n              , -1\n              /* STRING_MAX_HANDLE */\n              );\n\n            case 2\n            /* NUMBER */\n            :\n              return (0, _util.encodeHandle)(constants.number(operand.value.primitive), 1073741823\n              /* NUMBER_MAX_INDEX */\n              , -1073741825\n              /* NUMBER_MAX_HANDLE */\n              );\n\n            case 0\n            /* IMMEDIATE */\n            :\n              return (0, _util.encodeImmediate)(operand.value.primitive);\n\n            default:\n              return (0, _util.exhausted)(operand.value);\n          }\n        }\n\n      case 'lookup':\n        throw (0, _util.unreachable)('lookup not reachable');\n\n      default:\n        return (0, _util.exhausted)(operand);\n    }\n  }\n\n  function isSimpleOpcode(op) {\n    return op === 'Label' || op === 'Option' || op === 'GetComponentLayout' || op === 'StartLabels' || op === 'StopLabels' || op === 'SimpleArgs' || op === 'JitCompileBlock' || op === 'SetBlock';\n  }\n\n  function isCompileOpcode(op) {\n    return op === 'CompileInline' || op === 'CompileBlock' || op === 'InvokeStatic' || op === 'PushCompilable' || op === 'Args' || op === 'IfResolvedComponent' || op === 'DynamicComponent';\n  }\n\n  function isResolutionOpcode(op) {\n    return op === 'IfResolved' || op === 'Expr' || op === 'SimpleArgs' || op === 'ResolveFree' || op === 'ResolveContextualFree';\n  }\n\n  function isErrorOpcode(op) {\n    return op === 'Error';\n  }\n  /**\n   * Compile arguments, pushing an Arguments object onto the stack.\n   *\n   * @param args.params\n   * @param args.hash\n   * @param args.blocks\n   * @param args.atNames\n   */\n\n\n  function CompileArgs({\n    params,\n    hash,\n    blocks,\n    atNames\n  }) {\n    var out = [];\n    var blockNames = blocks.names;\n\n    for (var i = 0; i < blockNames.length; i++) {\n      out.push(PushYieldableBlock(blocks.get(blockNames[i])));\n    }\n\n    var {\n      count,\n      actions\n    } = CompilePositional(params);\n    out.push(actions);\n    var flags = count << 4;\n    if (atNames) flags |= 0b1000;\n\n    if (blocks) {\n      flags |= 0b111;\n    }\n\n    var names = _util.EMPTY_ARRAY;\n\n    if (hash) {\n      names = hash[0];\n      var val = hash[1];\n\n      for (var _i = 0; _i < val.length; _i++) {\n        out.push(op('Expr', val[_i]));\n      }\n    }\n\n    out.push(op(84\n    /* PushArgs */\n    , strArray(names), strArray(blockNames), flags));\n    return out;\n  }\n  /**\n   * Compile an optional list of positional arguments, which pushes each argument\n   * onto the stack and returns the number of parameters compiled\n   *\n   * @param params an optional list of positional arguments\n   */\n\n\n  function CompilePositional(params) {\n    if (!params) return {\n      count: 0,\n      actions: NONE\n    };\n    var actions = [];\n\n    for (var i = 0; i < params.length; i++) {\n      actions.push(op('Expr', params[i]));\n    }\n\n    return {\n      count: params.length,\n      actions\n    };\n  }\n\n  function meta(layout) {\n    return {\n      asPartial: layout.asPartial || false,\n      evalSymbols: evalSymbols(layout),\n      upvars: layout.block.upvars,\n      referrer: layout.referrer,\n      size: layout.block.symbols.length\n    };\n  }\n\n  function evalSymbols(layout) {\n    var {\n      block\n    } = layout;\n    return block.hasEval ? block.symbols : null;\n  }\n\n  var ATTRS_BLOCK = '&attrs';\n\n  function StaticComponentHelper(context, tag, hash, template) {\n    var component = resolveLayoutForTag(tag, context);\n\n    if (component !== null) {\n      var {\n        compilable: compilable$$1,\n        handle,\n        capabilities\n      } = component;\n\n      if (compilable$$1) {\n        if (hash) {\n          for (var i = 0; i < hash.length; i = i + 2) {\n            hash[i][0] = `@${hash[i][0]}`;\n          }\n        }\n\n        var out = [op(80\n        /* PushComponentDefinition */\n        , handle)];\n        out.push(InvokeStaticComponent({\n          capabilities,\n          layout: compilable$$1,\n          attrs: null,\n          params: null,\n          hash,\n          blocks: new NamedBlocksImpl({\n            default: template\n          })\n        }));\n        return out;\n      }\n    }\n\n    return UNHANDLED;\n  }\n\n  function InvokeStaticComponent({\n    capabilities,\n    layout,\n    attrs,\n    params,\n    hash,\n    blocks\n  }) {\n    var {\n      symbolTable\n    } = layout;\n    var bailOut = symbolTable.hasEval || capabilities.prepareArgs;\n\n    if (bailOut) {\n      return InvokeComponent({\n        capabilities,\n        attrs,\n        params,\n        hash,\n        atNames: true,\n        blocks,\n        layout\n      });\n    }\n\n    var out = [op(36\n    /* Fetch */\n    , _vm.$s0), op(33\n    /* Dup */\n    , _vm.$sp, 1), op(35\n    /* Load */\n    , _vm.$s0)];\n    var {\n      symbols\n    } = symbolTable;\n\n    if (capabilities.createArgs) {\n      out.push(op(0\n      /* PushFrame */\n      ), op('SimpleArgs', {\n        params,\n        hash,\n        atNames: true\n      }));\n    }\n\n    out.push(op(100\n    /* BeginComponentTransaction */\n    ));\n\n    if (capabilities.dynamicScope) {\n      out.push(op(59\n      /* PushDynamicScope */\n      ));\n    }\n\n    if (capabilities.createInstance) {\n      out.push(op(89\n      /* CreateComponent */\n      , blocks.has('default') | 0, _vm.$s0));\n    }\n\n    if (capabilities.createArgs) {\n      out.push(op(1\n      /* PopFrame */\n      ));\n    }\n\n    out.push(op(0\n    /* PushFrame */\n    ), op(90\n    /* RegisterComponentDestructor */\n    , _vm.$s0));\n    var bindings = [];\n    out.push(op(92\n    /* GetComponentSelf */\n    , _vm.$s0));\n    bindings.push({\n      symbol: 0,\n      isBlock: false\n    });\n\n    for (var i = 0; i < symbols.length; i++) {\n      var symbol = symbols[i];\n\n      switch (symbol.charAt(0)) {\n        case '&':\n          var callerBlock = void 0;\n\n          if (symbol === ATTRS_BLOCK) {\n            callerBlock = attrs;\n          } else {\n            callerBlock = blocks.get(symbol.slice(1));\n          }\n\n          if (callerBlock) {\n            out.push(PushYieldableBlock(callerBlock));\n            bindings.push({\n              symbol: i + 1,\n              isBlock: true\n            });\n          } else {\n            out.push(PushYieldableBlock(null));\n            bindings.push({\n              symbol: i + 1,\n              isBlock: true\n            });\n          }\n\n          break;\n\n        case '@':\n          if (!hash) {\n            break;\n          }\n\n          var [keys, values] = hash;\n          var lookupName = symbol;\n          var index = keys.indexOf(lookupName);\n\n          if (index !== -1) {\n            out.push(op('Expr', values[index]));\n            bindings.push({\n              symbol: i + 1,\n              isBlock: false\n            });\n          }\n\n          break;\n      }\n    }\n\n    out.push(op(37\n    /* RootScope */\n    , symbols.length + 1, Object.keys(blocks).length > 0 ? 1 : 0));\n\n    for (var _i2 = bindings.length - 1; _i2 >= 0; _i2--) {\n      var {\n        symbol: _symbol,\n        isBlock\n      } = bindings[_i2];\n\n      if (isBlock) {\n        out.push(op('SetBlock', _symbol));\n      } else {\n        out.push(op(19\n        /* SetVariable */\n        , _symbol));\n      }\n    }\n\n    out.push(op('InvokeStatic', layout));\n\n    if (capabilities.createInstance) {\n      out.push(op(103\n      /* DidRenderLayout */\n      , _vm.$s0));\n    }\n\n    out.push(op(1\n    /* PopFrame */\n    ), op(40\n    /* PopScope */\n    ));\n\n    if (capabilities.dynamicScope) {\n      out.push(op(60\n      /* PopDynamicScope */\n      ));\n    }\n\n    out.push(op(101\n    /* CommitComponentTransaction */\n    ), op(35\n    /* Load */\n    , _vm.$s0));\n    return out;\n  }\n\n  function InvokeDynamicComponent(meta$$1, {\n    definition,\n    attrs,\n    params,\n    hash,\n    atNames,\n    blocks\n  }) {\n    return Replayable({\n      args: () => {\n        return {\n          count: 2,\n          actions: [op('Expr', definition), op(33\n          /* Dup */\n          , _vm.$sp, 0)]\n        };\n      },\n      body: () => {\n        return [op(66\n        /* JumpUnless */\n        , label('ELSE')), op(83\n        /* ResolveDynamicComponent */\n        , templateMeta(meta$$1.referrer)), op(81\n        /* PushDynamicComponentInstance */\n        ), InvokeComponent({\n          capabilities: true,\n          attrs,\n          params,\n          hash,\n          atNames,\n          blocks\n        }), op('Label', 'ELSE')];\n      }\n    });\n  }\n\n  function WrappedComponent(layout, attrsBlockNumber) {\n    return [op('StartLabels'), WithSavedRegister(_vm.$s1, () => [op(93\n    /* GetComponentTagName */\n    , _vm.$s0), op(31\n    /* PrimitiveReference */\n    ), op(33\n    /* Dup */\n    , _vm.$sp, 0)]), op(66\n    /* JumpUnless */\n    , label('BODY')), op(36\n    /* Fetch */\n    , _vm.$s1), op(91\n    /* PutComponentOperations */\n    ), op(49\n    /* OpenDynamicElement */\n    ), op(102\n    /* DidCreateElement */\n    , _vm.$s0), YieldBlock(attrsBlockNumber, _util.EMPTY_ARRAY), op(54\n    /* FlushElement */\n    ), op('Label', 'BODY'), InvokeStaticBlock(blockForLayout(layout)), op(36\n    /* Fetch */\n    , _vm.$s1), op(66\n    /* JumpUnless */\n    , label('END')), op(55\n    /* CloseElement */\n    ), op('Label', 'END'), op(35\n    /* Load */\n    , _vm.$s1), op('StopLabels')];\n  }\n\n  function StaticComponent(component, args$$1) {\n    var [params, hash, blocks] = args$$1;\n    if (component === null) return NONE;\n    var {\n      compilable: compilable$$1,\n      capabilities,\n      handle\n    } = component;\n\n    if (compilable$$1) {\n      return [op(80\n      /* PushComponentDefinition */\n      , handle), InvokeStaticComponent({\n        capabilities: capabilities || MINIMAL_CAPABILITIES,\n        layout: compilable$$1,\n        attrs: null,\n        params,\n        hash,\n        blocks\n      })];\n    } else {\n      return [op(80\n      /* PushComponentDefinition */\n      , handle), InvokeComponent({\n        capabilities: capabilities || MINIMAL_CAPABILITIES,\n        attrs: null,\n        params,\n        hash,\n        atNames: true,\n        blocks\n      })];\n    }\n  }\n\n  function InvokeComponent({\n    capabilities,\n    attrs,\n    params,\n    hash,\n    atNames,\n    blocks: namedBlocks$$1,\n    layout\n  }) {\n    var bindableBlocks = !!namedBlocks$$1;\n    var bindableAtNames = capabilities === true || capabilities.prepareArgs || !!(hash && hash[0].length !== 0);\n    var blocks = namedBlocks$$1.with('attrs', attrs);\n    return [op(36\n    /* Fetch */\n    , _vm.$s0), op(33\n    /* Dup */\n    , _vm.$sp, 1), op(35\n    /* Load */\n    , _vm.$s0), op(0\n    /* PushFrame */\n    ), op('Args', {\n      params,\n      hash,\n      blocks,\n      atNames\n    }), op(87\n    /* PrepareArgs */\n    , _vm.$s0), invokePreparedComponent(blocks.has('default'), bindableBlocks, bindableAtNames, () => {\n      var out;\n\n      if (layout) {\n        out = [PushSymbolTable(layout.symbolTable), op('PushCompilable', layout), op('JitCompileBlock')];\n      } else {\n        out = [op('GetComponentLayout', _vm.$s0)];\n      }\n\n      out.push(op(98\n      /* PopulateLayout */\n      , _vm.$s0));\n      return out;\n    }), op(35\n    /* Load */\n    , _vm.$s0)];\n  }\n\n  function invokePreparedComponent(hasBlock, bindableBlocks, bindableAtNames, populateLayout = null) {\n    var out = [op(100\n    /* BeginComponentTransaction */\n    ), op(59\n    /* PushDynamicScope */\n    ), op(89\n    /* CreateComponent */\n    , hasBlock | 0, _vm.$s0)]; // this has to run after createComponent to allow\n    // for late-bound layouts, but a caller is free\n    // to populate the layout earlier if it wants to\n    // and do nothing here.\n\n    if (populateLayout) {\n      out.push(populateLayout());\n    }\n\n    out.push(op(90\n    /* RegisterComponentDestructor */\n    , _vm.$s0), op(92\n    /* GetComponentSelf */\n    , _vm.$s0), op(38\n    /* VirtualRootScope */\n    , _vm.$s0), op(19\n    /* SetVariable */\n    , 0), op(97\n    /* SetupForEval */\n    , _vm.$s0), bindableAtNames ? op(17\n    /* SetNamedVariables */\n    , _vm.$s0) : NONE, bindableBlocks ? op(18\n    /* SetBlocks */\n    , _vm.$s0) : NONE, op(34\n    /* Pop */\n    , 1), op(99\n    /* InvokeComponentLayout */\n    , _vm.$s0), op(103\n    /* DidRenderLayout */\n    , _vm.$s0), op(1\n    /* PopFrame */\n    ), op(40\n    /* PopScope */\n    ), op(60\n    /* PopDynamicScope */\n    ), op(101\n    /* CommitComponentTransaction */\n    ));\n    return out;\n  }\n\n  function InvokeBareComponent() {\n    return [op(36\n    /* Fetch */\n    , _vm.$s0), op(33\n    /* Dup */\n    , _vm.$sp, 1), op(35\n    /* Load */\n    , _vm.$s0), op(0\n    /* PushFrame */\n    ), op(85\n    /* PushEmptyArgs */\n    ), op(87\n    /* PrepareArgs */\n    , _vm.$s0), invokePreparedComponent(false, false, true, () => [op('GetComponentLayout', _vm.$s0), op(98\n    /* PopulateLayout */\n    , _vm.$s0)]), op(35\n    /* Load */\n    , _vm.$s0)];\n  }\n\n  function curryComponent({\n    definition,\n    params,\n    hash,\n    atNames\n  }, referrer) {\n    return [op(0\n    /* PushFrame */\n    ), op('SimpleArgs', {\n      params,\n      hash,\n      atNames\n    }), op(88\n    /* CaptureArgs */\n    ), op('Expr', definition), op(79\n    /* CurryComponent */\n    , templateMeta(referrer)), op(1\n    /* PopFrame */\n    ), op(36\n    /* Fetch */\n    , _vm.$v0)];\n  }\n\n  function blockForLayout(layout) {\n    return compilableBlock(layout.block.statements, meta(layout));\n  }\n\n  function WithSavedRegister(register, block) {\n    return [op(36\n    /* Fetch */\n    , register), block(), op(35\n    /* Load */\n    , register)];\n  }\n\n  class StdLib {\n    constructor(main, trustingGuardedAppend, cautiousGuardedAppend) {\n      this.main = main;\n      this.trustingGuardedAppend = trustingGuardedAppend;\n      this.cautiousGuardedAppend = cautiousGuardedAppend;\n    }\n\n    get 'trusting-append'() {\n      return this.trustingGuardedAppend;\n    }\n\n    get 'cautious-append'() {\n      return this.cautiousGuardedAppend;\n    }\n\n    getAppend(trusting) {\n      return trusting ? this.trustingGuardedAppend : this.cautiousGuardedAppend;\n    }\n\n  }\n\n  _exports.StdLib = StdLib;\n\n  function main() {\n    return [op(76\n    /* Main */\n    , _vm.$s0), invokePreparedComponent(false, false, true)];\n  }\n  /**\n   * Append content to the DOM. This standard function triages content and does the\n   * right thing based upon whether it's a string, safe string, component, fragment\n   * or node.\n   *\n   * @param trusting whether to interpolate a string as raw HTML (corresponds to\n   * triple curlies)\n   */\n\n\n  function StdAppend(trusting) {\n    return [op(78\n    /* ContentType */\n    ), SwitchCases(when => {\n      when(1\n      /* String */\n      , () => {\n        if (trusting) {\n          return [op(68\n          /* AssertSame */\n          ), op(43\n          /* AppendHTML */\n          )];\n        } else {\n          return op(47\n          /* AppendText */\n          );\n        }\n      });\n      when(0\n      /* Component */\n      , () => [op(82\n      /* PushCurriedComponent */\n      ), op(81\n      /* PushDynamicComponentInstance */\n      ), InvokeBareComponent()]);\n      when(3\n      /* SafeString */\n      , () => [op(68\n      /* AssertSame */\n      ), op(44\n      /* AppendSafeHTML */\n      )]);\n      when(4\n      /* Fragment */\n      , () => [op(68\n      /* AssertSame */\n      ), op(45\n      /* AppendDocumentFragment */\n      )]);\n      when(5\n      /* Node */\n      , () => [op(68\n      /* AssertSame */\n      ), op(46\n      /* AppendNode */\n      )]);\n    })];\n  }\n\n  function compileStd(context) {\n    var mainHandle = build(context, main);\n    var trustingGuardedAppend = build(context, () => StdAppend(true));\n    var cautiousGuardedAppend = build(context, () => StdAppend(false));\n    return new StdLib(mainHandle, trustingGuardedAppend, cautiousGuardedAppend);\n  }\n\n  var STDLIB_META = {\n    asPartial: false,\n    evalSymbols: null,\n    upvars: null,\n    // TODO: ??\n    referrer: {},\n    size: 0\n  };\n\n  function build(program, callback) {\n    var encoder = new EncoderImpl();\n    var macros = new MacrosImpl();\n    var stdContext = {\n      encoder,\n      meta: STDLIB_META,\n      syntax: {\n        macros,\n        program\n      }\n    };\n    concat(stdContext, callback());\n    var result = encoder.commit(program.heap, 0);\n\n    if (typeof result !== 'number') {\n      // This shouldn't be possible\n      throw new Error(`Unexpected errors compiling std`);\n    } else {\n      return result;\n    }\n  }\n\n  class ProgramCompilationContext {\n    constructor(delegate, mode) {\n      this.mode = mode;\n      this.constants = new _program.WriteOnlyConstants();\n      this.heap = new _program.HeapImpl();\n      this.resolverDelegate = delegate;\n      this.stdlib = compileStd(this);\n    }\n\n  }\n\n  _exports.ProgramCompilationContext = ProgramCompilationContext;\n\n  class JitProgramCompilationContext {\n    constructor(delegate) {\n      this.constants = new _program.JitConstants();\n      this.heap = new _program.HeapImpl();\n      this.mode = \"jit\"\n      /* jit */\n      ;\n      this.resolverDelegate = delegate;\n      this.stdlib = compileStd(this);\n    }\n\n  }\n\n  _exports.JitProgramCompilationContext = JitProgramCompilationContext;\n\n  class PartialDefinitionImpl {\n    constructor(name, // for debugging\n    template) {\n      this.name = name;\n      this.template = template;\n    }\n\n    getPartial(context) {\n      var partial = (0, _util.unwrapTemplate)(this.template).asPartial();\n      var handle = partial.compile(context);\n      return {\n        symbolTable: partial.symbolTable,\n        handle\n      };\n    }\n\n  }\n\n  _exports.PartialDefinitionImpl = PartialDefinitionImpl;\n\n  class WrappedBuilder {\n    constructor(layout) {\n      this.layout = layout;\n      this.compiled = null;\n      var {\n        block\n      } = layout;\n      var symbols = block.symbols.slice(); // ensure ATTRS_BLOCK is always included (only once) in the list of symbols\n\n      var attrsBlockIndex = symbols.indexOf(ATTRS_BLOCK);\n\n      if (attrsBlockIndex === -1) {\n        this.attrsBlockNumber = symbols.push(ATTRS_BLOCK);\n      } else {\n        this.attrsBlockNumber = attrsBlockIndex + 1;\n      }\n\n      this.symbolTable = {\n        hasEval: block.hasEval,\n        symbols\n      };\n    }\n\n    compile(syntax) {\n      if (this.compiled !== null) return this.compiled;\n      var m = meta(this.layout);\n      var context = templateCompilationContext(syntax, m);\n      var actions = WrappedComponent(this.layout, this.attrsBlockNumber);\n      concatStatements(context, actions);\n      var handle = context.encoder.commit(context.syntax.program.heap, m.size);\n\n      if (typeof handle !== 'number') {\n        return handle;\n      }\n\n      this.compiled = handle;\n      (0, _program.patchStdlibs)(context.syntax.program);\n      return handle;\n    }\n\n  }\n\n  _exports.WrappedBuilder = WrappedBuilder;\n  var clientId = 0;\n\n  function templateFactory({\n    id: templateId,\n    meta,\n    block\n  }) {\n    var parsedBlock;\n    var id = templateId || `client-${clientId++}`;\n\n    var create = envMeta => {\n      var newMeta = envMeta ? (0, _util.assign)({}, envMeta, meta) : meta;\n\n      if (!parsedBlock) {\n        parsedBlock = JSON.parse(block);\n      }\n\n      return new TemplateImpl({\n        id,\n        block: parsedBlock,\n        referrer: newMeta\n      });\n    };\n\n    return {\n      id,\n      meta,\n      create\n    };\n  }\n\n  class TemplateImpl {\n    constructor(parsedLayout) {\n      this.parsedLayout = parsedLayout;\n      this.result = 'ok';\n      this.layout = null;\n      this.partial = null;\n      this.wrappedLayout = null;\n      var {\n        block\n      } = parsedLayout;\n      this.symbols = block.symbols;\n      this.hasEval = block.hasEval;\n      this.referrer = parsedLayout.referrer;\n      this.id = parsedLayout.id || `client-${clientId++}`;\n    }\n\n    asLayout() {\n      if (this.layout) return this.layout;\n      return this.layout = compilable((0, _util.assign)({}, this.parsedLayout, {\n        asPartial: false\n      }));\n    }\n\n    asPartial() {\n      if (this.partial) return this.partial;\n      return this.layout = compilable((0, _util.assign)({}, this.parsedLayout, {\n        asPartial: true\n      }));\n    }\n\n    asWrappedLayout() {\n      if (this.wrappedLayout) return this.wrappedLayout;\n      return this.wrappedLayout = new WrappedBuilder((0, _util.assign)({}, this.parsedLayout, {\n        asPartial: false\n      }));\n    }\n\n  }\n\n  function Component(serialized, envMeta) {\n    var parsed = JSON.parse(serialized);\n    var factory = templateFactory(parsed);\n    var template = (0, _util.unwrapTemplate)(factory.create(envMeta));\n    return template.asLayout();\n  }\n});","define(\"@glimmer/program\", [\"exports\", \"@glimmer/util\"], function (_exports, _util) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.hydrateHeap = hydrateHeap;\n  _exports.hydrateProgram = hydrateProgram;\n  _exports.patchStdlibs = patchStdlibs;\n  _exports.programArtifacts = programArtifacts;\n  _exports.artifacts = artifacts;\n  _exports.RuntimeOpImpl = _exports.RuntimeProgramImpl = _exports.HeapImpl = _exports.RuntimeHeapImpl = _exports.JitConstants = _exports.RuntimeConstantsImpl = _exports.WriteOnlyConstants = _exports.WELL_KNOWN_EMPTY_ARRAY_POSITION = void 0;\n  var UNRESOLVED = {};\n  var WELL_KNOWN_EMPTY_ARRAY_POSITION = 0;\n  _exports.WELL_KNOWN_EMPTY_ARRAY_POSITION = WELL_KNOWN_EMPTY_ARRAY_POSITION;\n  var WELL_KNOW_EMPTY_ARRAY = Object.freeze([]);\n\n  class WriteOnlyConstants {\n    constructor() {\n      // `0` means NULL\n      this.strings = [];\n      this.arrays = [WELL_KNOW_EMPTY_ARRAY];\n      this.tables = [];\n      this.handles = [];\n      this.resolved = [];\n      this.numbers = [];\n      this.others = [];\n    }\n\n    other(other) {\n      return this.others.push(other) - 1;\n    }\n\n    string(value) {\n      var index = this.strings.indexOf(value);\n\n      if (index > -1) {\n        return index;\n      }\n\n      return this.strings.push(value) - 1;\n    }\n\n    stringArray(strings) {\n      var _strings = new Array(strings.length);\n\n      for (var i = 0; i < strings.length; i++) {\n        _strings[i] = this.string(strings[i]);\n      }\n\n      return this.array(_strings);\n    }\n\n    array(values) {\n      if (values.length === 0) {\n        return WELL_KNOWN_EMPTY_ARRAY_POSITION;\n      }\n\n      var index = this.arrays.indexOf(values);\n\n      if (index > -1) {\n        return index;\n      }\n\n      return this.arrays.push(values) - 1;\n    }\n\n    serializable(value) {\n      var str = JSON.stringify(value);\n      var index = this.strings.indexOf(str);\n\n      if (index > -1) {\n        return index;\n      }\n\n      return this.strings.push(str) - 1;\n    }\n\n    templateMeta(value) {\n      return this.serializable(value);\n    }\n\n    number(number) {\n      var index = this.numbers.indexOf(number);\n\n      if (index > -1) {\n        return index;\n      }\n\n      return this.numbers.push(number) - 1;\n    }\n\n    toPool() {\n      return {\n        strings: this.strings,\n        arrays: this.arrays,\n        handles: this.handles,\n        numbers: this.numbers\n      };\n    }\n\n  }\n\n  _exports.WriteOnlyConstants = WriteOnlyConstants;\n\n  class RuntimeConstantsImpl {\n    constructor(pool) {\n      this.strings = pool.strings;\n      this.arrays = pool.arrays;\n      this.handles = pool.handles;\n      this.numbers = pool.numbers;\n      this.others = [];\n    }\n\n    getString(value) {\n      return this.strings[value];\n    }\n\n    getNumber(value) {\n      return this.numbers[value];\n    }\n\n    getStringArray(value) {\n      var names = this.getArray(value);\n\n      var _names = new Array(names.length);\n\n      for (var i = 0; i < names.length; i++) {\n        var n = names[i];\n        _names[i] = this.getString(n);\n      }\n\n      return _names;\n    }\n\n    getArray(value) {\n      return this.arrays[value];\n    }\n\n    getSerializable(s) {\n      return JSON.parse(this.strings[s]);\n    }\n\n    getTemplateMeta(m) {\n      return this.getSerializable(m);\n    }\n\n    getOther(value) {\n      return this.others[value];\n    }\n\n  }\n\n  _exports.RuntimeConstantsImpl = RuntimeConstantsImpl;\n\n  class JitConstants extends WriteOnlyConstants {\n    constructor(pool) {\n      super();\n      this.metas = [];\n\n      if (pool) {\n        this.strings = pool.strings;\n        this.arrays = pool.arrays;\n        this.handles = pool.handles;\n        this.resolved = this.handles.map(() => UNRESOLVED);\n        this.numbers = pool.numbers;\n      }\n\n      this.others = [];\n    }\n\n    templateMeta(meta) {\n      var index = this.metas.indexOf(meta);\n\n      if (index > -1) {\n        return index;\n      }\n\n      return this.metas.push(meta) - 1;\n    }\n\n    getNumber(value) {\n      return this.numbers[value];\n    }\n\n    getString(value) {\n      return this.strings[value];\n    }\n\n    getStringArray(value) {\n      var names = this.getArray(value);\n\n      var _names = new Array(names.length);\n\n      for (var i = 0; i < names.length; i++) {\n        var n = names[i];\n        _names[i] = this.getString(n);\n      }\n\n      return _names;\n    }\n\n    getArray(value) {\n      return this.arrays[value];\n    }\n\n    getSerializable(s) {\n      return JSON.parse(this.strings[s]);\n    }\n\n    getTemplateMeta(m) {\n      return this.metas[m];\n    }\n\n    getOther(value) {\n      return this.others[value];\n    }\n\n  }\n\n  _exports.JitConstants = JitConstants;\n\n  class RuntimeOpImpl {\n    constructor(heap) {\n      this.heap = heap;\n      this.offset = 0;\n    }\n\n    get size() {\n      var rawType = this.heap.getbyaddr(this.offset);\n      return ((rawType & 768\n      /* OPERAND_LEN_MASK */\n      ) >> 8\n      /* ARG_SHIFT */\n      ) + 1;\n    }\n\n    get isMachine() {\n      var rawType = this.heap.getbyaddr(this.offset);\n      return rawType & 1024\n      /* MACHINE_MASK */\n      ? 1 : 0;\n    }\n\n    get type() {\n      return this.heap.getbyaddr(this.offset) & 255\n      /* TYPE_MASK */\n      ;\n    }\n\n    get op1() {\n      return this.heap.getbyaddr(this.offset + 1);\n    }\n\n    get op2() {\n      return this.heap.getbyaddr(this.offset + 2);\n    }\n\n    get op3() {\n      return this.heap.getbyaddr(this.offset + 3);\n    }\n\n  }\n\n  _exports.RuntimeOpImpl = RuntimeOpImpl;\n\n  function encodeTableInfo(scopeSize, state) {\n    return state | scopeSize << 2;\n  }\n\n  function changeState(info, newState) {\n    return info | newState << 30;\n  }\n\n  var PAGE_SIZE = 0x100000;\n\n  class RuntimeHeapImpl {\n    constructor(serializedHeap) {\n      var {\n        buffer,\n        table\n      } = serializedHeap;\n      this.heap = new Int32Array(buffer);\n      this.table = table;\n    } // It is illegal to close over this address, as compaction\n    // may move it. However, it is legal to use this address\n    // multiple times between compactions.\n\n\n    getaddr(handle) {\n      return this.table[handle];\n    }\n\n    getbyaddr(address) {\n      return this.heap[address];\n    }\n\n    sizeof(handle) {\n      return sizeof(this.table, handle);\n    }\n\n    scopesizeof(handle) {\n      return scopesizeof(this.table, handle);\n    }\n\n  }\n\n  _exports.RuntimeHeapImpl = RuntimeHeapImpl;\n\n  function hydrateHeap(serializedHeap) {\n    return new RuntimeHeapImpl(serializedHeap);\n  }\n  /**\n   * The Heap is responsible for dynamically allocating\n   * memory in which we read/write the VM's instructions\n   * from/to. When we malloc we pass out a VMHandle, which\n   * is used as an indirect way of accessing the memory during\n   * execution of the VM. Internally we track the different\n   * regions of the memory in an int array known as the table.\n   *\n   * The table 32-bit aligned and has the following layout:\n   *\n   * | ... | hp (u32) |       info (u32)   | size (u32) |\n   * | ... |  Handle  | Scope Size | State | Size       |\n   * | ... | 32bits   | 30bits     | 2bits | 32bit      |\n   *\n   * With this information we effectively have the ability to\n   * control when we want to free memory. That being said you\n   * can not free during execution as raw address are only\n   * valid during the execution. This means you cannot close\n   * over them as you will have a bad memory access exception.\n   */\n\n\n  class HeapImpl {\n    constructor() {\n      this.placeholders = [];\n      this.stdlibs = [];\n      this.offset = 0;\n      this.handle = 0;\n      this.capacity = PAGE_SIZE;\n      this.heap = new Int32Array(PAGE_SIZE);\n      this.table = [];\n    }\n\n    push(item) {\n      this.sizeCheck();\n      this.heap[this.offset++] = item;\n    }\n\n    sizeCheck() {\n      if (this.capacity === 0) {\n        var heap = slice(this.heap, 0, this.offset);\n        this.heap = new Int32Array(heap.length + PAGE_SIZE);\n        this.heap.set(heap, 0);\n        this.capacity = PAGE_SIZE;\n      }\n\n      this.capacity--;\n    }\n\n    getbyaddr(address) {\n      return this.heap[address];\n    }\n\n    setbyaddr(address, value) {\n      this.heap[address] = value;\n    }\n\n    malloc() {\n      // push offset, info, size\n      this.table.push(this.offset, 0, 0);\n      var handle = this.handle;\n      this.handle += 3\n      /* ENTRY_SIZE */\n      ;\n      return handle;\n    }\n\n    finishMalloc(handle, scopeSize) {\n      this.table[handle + 1\n      /* INFO_OFFSET */\n      ] = encodeTableInfo(scopeSize, 0\n      /* Allocated */\n      );\n    }\n\n    size() {\n      return this.offset;\n    } // It is illegal to close over this address, as compaction\n    // may move it. However, it is legal to use this address\n    // multiple times between compactions.\n\n\n    getaddr(handle) {\n      return this.table[handle];\n    }\n\n    gethandle(address) {\n      this.table.push(address, encodeTableInfo(0, 3\n      /* Pointer */\n      ), 0);\n      var handle = this.handle;\n      this.handle += 3\n      /* ENTRY_SIZE */\n      ;\n      return handle;\n    }\n\n    sizeof(handle) {\n      return sizeof(this.table, handle);\n    }\n\n    scopesizeof(handle) {\n      return scopesizeof(this.table, handle);\n    }\n\n    free(handle) {\n      var info = this.table[handle + 1\n      /* INFO_OFFSET */\n      ];\n      this.table[handle + 1\n      /* INFO_OFFSET */\n      ] = changeState(info, 1\n      /* Freed */\n      );\n    }\n    /**\n     * The heap uses the [Mark-Compact Algorithm](https://en.wikipedia.org/wiki/Mark-compact_algorithm) to shift\n     * reachable memory to the bottom of the heap and freeable\n     * memory to the top of the heap. When we have shifted all\n     * the reachable memory to the top of the heap, we move the\n     * offset to the next free position.\n     */\n\n\n    compact() {\n      var compactedSize = 0;\n      var {\n        table,\n        table: {\n          length\n        },\n        heap\n      } = this;\n\n      for (var i = 0; i < length; i += 3\n      /* ENTRY_SIZE */\n      ) {\n        var offset = table[i];\n        var info = table[i + 1\n        /* INFO_OFFSET */\n        ]; // @ts-ignore (this whole function is currently unused)\n\n        var size = info & Size.SIZE_MASK;\n        var state = info & 3\n        /* STATE_MASK */\n        >> 30;\n\n        if (state === 2\n        /* Purged */\n        ) {\n            continue;\n          } else if (state === 1\n        /* Freed */\n        ) {\n            // transition to \"already freed\" aka \"purged\"\n            // a good improvement would be to reuse\n            // these slots\n            table[i + 1\n            /* INFO_OFFSET */\n            ] = changeState(info, 2\n            /* Purged */\n            );\n            compactedSize += size;\n          } else if (state === 0\n        /* Allocated */\n        ) {\n            for (var j = offset; j <= i + size; j++) {\n              heap[j - compactedSize] = heap[j];\n            }\n\n            table[i] = offset - compactedSize;\n          } else if (state === 3\n        /* Pointer */\n        ) {\n            table[i] = offset - compactedSize;\n          }\n      }\n\n      this.offset = this.offset - compactedSize;\n    }\n\n    pushPlaceholder(valueFunc) {\n      this.sizeCheck();\n      var address = this.offset++;\n      this.heap[address] = 2147483647\n      /* MAX_SIZE */\n      ;\n      this.placeholders.push([address, valueFunc]);\n    }\n\n    pushStdlib(operand) {\n      this.sizeCheck();\n      var address = this.offset++;\n      this.heap[address] = 2147483647\n      /* MAX_SIZE */\n      ;\n      this.stdlibs.push([address, operand]);\n    }\n\n    patchPlaceholders() {\n      var {\n        placeholders\n      } = this;\n\n      for (var i = 0; i < placeholders.length; i++) {\n        var [address, getValue] = placeholders[i];\n        this.setbyaddr(address, getValue());\n      }\n    }\n\n    patchStdlibs(stdlib) {\n      var {\n        stdlibs\n      } = this;\n\n      for (var i = 0; i < stdlibs.length; i++) {\n        var [address, {\n          value\n        }] = stdlibs[i];\n        this.setbyaddr(address, stdlib[value]);\n      }\n\n      this.stdlibs = [];\n    }\n\n    capture(stdlib, offset = this.offset) {\n      this.patchPlaceholders();\n      this.patchStdlibs(stdlib); // Only called in eager mode\n\n      var buffer = slice(this.heap, 0, offset).buffer;\n      return {\n        handle: this.handle,\n        table: this.table,\n        buffer: buffer\n      };\n    }\n\n  }\n\n  _exports.HeapImpl = HeapImpl;\n\n  class RuntimeProgramImpl {\n    constructor(constants, heap) {\n      this.constants = constants;\n      this.heap = heap;\n      this._opcode = new RuntimeOpImpl(this.heap);\n    }\n\n    static hydrate(artifacts) {\n      var heap = new RuntimeHeapImpl(artifacts.heap);\n      var constants = new RuntimeConstantsImpl(artifacts.constants);\n      return new RuntimeProgramImpl(constants, heap);\n    }\n\n    opcode(offset) {\n      this._opcode.offset = offset;\n      return this._opcode;\n    }\n\n  }\n\n  _exports.RuntimeProgramImpl = RuntimeProgramImpl;\n\n  function hydrateProgram(artifacts) {\n    var heap = new RuntimeHeapImpl(artifacts.heap);\n    var constants = new RuntimeConstantsImpl(artifacts.constants);\n    return new RuntimeProgramImpl(constants, heap);\n  }\n\n  function slice(arr, start, end) {\n    if (arr.slice !== undefined) {\n      return arr.slice(start, end);\n    }\n\n    var ret = new Int32Array(end);\n\n    for (; start < end; start++) {\n      ret[start] = arr[start];\n    }\n\n    return ret;\n  }\n\n  function sizeof(table, handle) {\n    {\n      return -1;\n    }\n  }\n\n  function scopesizeof(table, handle) {\n    var info = table[handle + 1\n    /* INFO_OFFSET */\n    ];\n    return info >> 2;\n  }\n\n  function patchStdlibs(program) {\n    program.heap.patchStdlibs(program.stdlib);\n  }\n\n  function programArtifacts(program) {\n    var heap = program.heap.capture(program.stdlib);\n    var constants = program.constants.toPool();\n    return {\n      heap,\n      constants\n    };\n  }\n\n  function artifacts(syntax) {\n    return programArtifacts(syntax.program);\n  }\n});","define(\"@glimmer/reference\", [\"exports\", \"@glimmer/util\", \"@glimmer/validator\"], function (_exports, _util, _validator) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.isModified = isModified;\n  _exports.IterableImpl = _exports.IterationItemReference = _exports.PropertyReference = _exports.HelperRootReference = _exports.ComponentRootReference = _exports.RootReference = _exports.UPDATE_REFERENCED_VALUE = _exports.IteratorSynchronizer = _exports.ReferenceIterator = _exports.IterationArtifacts = _exports.END = _exports.ListItem = _exports.ConstReference = _exports.ReferenceCache = _exports.CachedReference = void 0;\n\n  class CachedReference {\n    constructor() {\n      this.lastRevision = null;\n      this.lastValue = null;\n    }\n\n    value() {\n      var {\n        tag,\n        lastRevision,\n        lastValue\n      } = this;\n\n      if (lastRevision === null || !(0, _validator.validateTag)(tag, lastRevision)) {\n        lastValue = this.lastValue = this.compute();\n        this.lastRevision = (0, _validator.valueForTag)(tag);\n      }\n\n      return lastValue;\n    }\n\n    invalidate() {\n      this.lastRevision = null;\n    }\n\n  } //////////\n\n\n  _exports.CachedReference = CachedReference;\n\n  class ReferenceCache {\n    constructor(reference) {\n      this.lastValue = null;\n      this.lastRevision = null;\n      this.initialized = false;\n      this.tag = reference.tag;\n      this.reference = reference;\n    }\n\n    peek() {\n      if (!this.initialized) {\n        return this.initialize();\n      }\n\n      return this.lastValue;\n    }\n\n    revalidate() {\n      if (!this.initialized) {\n        return this.initialize();\n      }\n\n      var {\n        reference,\n        lastRevision\n      } = this;\n      var tag = reference.tag;\n      if ((0, _validator.validateTag)(tag, lastRevision)) return NOT_MODIFIED;\n      var {\n        lastValue\n      } = this;\n      var currentValue = reference.value();\n      this.lastRevision = (0, _validator.valueForTag)(tag);\n      if (currentValue === lastValue) return NOT_MODIFIED;\n      this.lastValue = currentValue;\n      return currentValue;\n    }\n\n    initialize() {\n      var {\n        reference\n      } = this;\n      var currentValue = this.lastValue = reference.value();\n      this.lastRevision = (0, _validator.valueForTag)(reference.tag);\n      this.initialized = true;\n      return currentValue;\n    }\n\n  }\n\n  _exports.ReferenceCache = ReferenceCache;\n  var NOT_MODIFIED = (0, _util.symbol)('NOT_MODIFIED');\n\n  function isModified(value) {\n    return value !== NOT_MODIFIED;\n  }\n\n  class PrimitiveReference {\n    constructor(inner) {\n      this.inner = inner;\n      this.tag = _validator.CONSTANT_TAG;\n    }\n\n    value() {\n      return this.inner;\n    }\n\n    get(_key) {\n      return UNDEFINED_REFERENCE;\n    }\n\n  }\n\n  var UNDEFINED_REFERENCE = new PrimitiveReference(undefined);\n\n  class ConstReference {\n    constructor(inner) {\n      this.inner = inner;\n      this.tag = _validator.CONSTANT_TAG;\n    }\n\n    value() {\n      return this.inner;\n    }\n\n    get(_key) {\n      return UNDEFINED_REFERENCE;\n    }\n\n  }\n\n  _exports.ConstReference = ConstReference;\n\n  class ListItem extends _util.ListNode {\n    constructor(iterable, result) {\n      super(iterable.valueReferenceFor(result));\n      this.retained = false;\n      this.seen = false;\n      this.key = result.key;\n      this.iterable = iterable;\n      this.memo = iterable.memoReferenceFor(result);\n    }\n\n    update(item) {\n      this.retained = true;\n      this.iterable.updateValueReference(this.value, item);\n      this.iterable.updateMemoReference(this.memo, item);\n    }\n\n    shouldRemove() {\n      return !this.retained;\n    }\n\n    reset() {\n      this.retained = false;\n      this.seen = false;\n    }\n\n  }\n\n  _exports.ListItem = ListItem;\n\n  class IterationArtifacts {\n    constructor(iterable) {\n      this.iterator = null;\n      this.map = new Map();\n      this.list = new _util.LinkedList();\n      this.tag = iterable.tag;\n      this.iterable = iterable;\n    }\n\n    isEmpty() {\n      var iterator = this.iterator = this.iterable.iterate();\n      return iterator.isEmpty();\n    }\n\n    iterate() {\n      var iterator;\n\n      if (this.iterator === null) {\n        iterator = this.iterable.iterate();\n      } else {\n        iterator = this.iterator;\n      }\n\n      this.iterator = null;\n      return iterator;\n    }\n\n    advanceToKey(key, current) {\n      var seek = current;\n\n      while (seek !== null && seek.key !== key) {\n        seek = this.advanceNode(seek);\n      }\n\n      return seek;\n    }\n\n    has(key) {\n      return this.map.has(key);\n    }\n\n    get(key) {\n      return this.map.get(key);\n    }\n\n    wasSeen(key) {\n      var node = this.map.get(key);\n      return node !== undefined && node.seen;\n    }\n\n    update(item) {\n      var found = this.get(item.key);\n      found.update(item);\n      return found;\n    }\n\n    append(item) {\n      var {\n        map,\n        list,\n        iterable\n      } = this;\n      var node = new ListItem(iterable, item);\n      map.set(item.key, node);\n      list.append(node);\n      return node;\n    }\n\n    insertBefore(item, reference) {\n      var {\n        map,\n        list,\n        iterable\n      } = this;\n      var node = new ListItem(iterable, item);\n      map.set(item.key, node);\n      node.retained = true;\n      list.insertBefore(node, reference);\n      return node;\n    }\n\n    move(item, reference) {\n      var {\n        list\n      } = this;\n      item.retained = true;\n      list.remove(item);\n      list.insertBefore(item, reference);\n    }\n\n    remove(item) {\n      var {\n        list\n      } = this;\n      list.remove(item);\n      this.map.delete(item.key);\n    }\n\n    nextNode(item) {\n      return this.list.nextNode(item);\n    }\n\n    advanceNode(item) {\n      item.seen = true;\n      return this.list.nextNode(item);\n    }\n\n    head() {\n      return this.list.head();\n    }\n\n  }\n\n  _exports.IterationArtifacts = IterationArtifacts;\n\n  class ReferenceIterator {\n    // if anyone needs to construct this object with something other than\n    // an iterable, let @wycats know.\n    constructor(iterable) {\n      this.iterator = null;\n      var artifacts = new IterationArtifacts(iterable);\n      this.artifacts = artifacts;\n    }\n\n    next() {\n      var {\n        artifacts\n      } = this;\n      var iterator = this.iterator = this.iterator || artifacts.iterate();\n      var item = iterator.next();\n      if (item === null) return null;\n      return artifacts.append(item);\n    }\n\n  }\n\n  _exports.ReferenceIterator = ReferenceIterator;\n  var Phase;\n\n  (function (Phase) {\n    Phase[Phase[\"Append\"] = 0] = \"Append\";\n    Phase[Phase[\"Prune\"] = 1] = \"Prune\";\n    Phase[Phase[\"Done\"] = 2] = \"Done\";\n  })(Phase || (Phase = {}));\n\n  var END = (0, _util.symbol)('END');\n  _exports.END = END;\n\n  class IteratorSynchronizer {\n    constructor({\n      target,\n      artifacts,\n      env\n    }) {\n      this.target = target;\n      this.artifacts = artifacts;\n      this.iterator = artifacts.iterate();\n      this.current = artifacts.head();\n      this.env = env;\n    }\n\n    sync() {\n      var phase = Phase.Append;\n\n      while (true) {\n        switch (phase) {\n          case Phase.Append:\n            phase = this.nextAppend();\n            break;\n\n          case Phase.Prune:\n            phase = this.nextPrune();\n            break;\n\n          case Phase.Done:\n            this.nextDone();\n            return;\n        }\n      }\n    }\n\n    advanceToKey(key) {\n      var {\n        current,\n        artifacts\n      } = this;\n      if (current === null) return;\n      var next = artifacts.advanceNode(current);\n\n      if (next.key === key) {\n        this.current = artifacts.advanceNode(next);\n        return;\n      }\n\n      var seek = artifacts.advanceToKey(key, current);\n\n      if (seek) {\n        this.move(seek, current);\n        this.current = artifacts.nextNode(current);\n      }\n    }\n\n    move(item, reference) {\n      if (item.next !== reference) {\n        this.artifacts.move(item, reference);\n        this.target.move(this.env, item.key, item.value, item.memo, reference ? reference.key : END);\n      }\n    }\n\n    nextAppend() {\n      var {\n        iterator,\n        current,\n        artifacts\n      } = this;\n      var item = iterator.next();\n\n      if (item === null) {\n        return this.startPrune();\n      }\n\n      var {\n        key\n      } = item;\n\n      if (current !== null && current.key === key) {\n        this.nextRetain(item, current);\n      } else if (artifacts.has(key)) {\n        this.nextMove(item);\n      } else {\n        this.nextInsert(item);\n      }\n\n      return Phase.Append;\n    }\n\n    nextRetain(item, current) {\n      var {\n        artifacts\n      } = this; // current = expect(current, 'BUG: current is empty');\n\n      current.update(item);\n      this.current = artifacts.nextNode(current);\n      this.target.retain(this.env, item.key, current.value, current.memo);\n    }\n\n    nextMove(item) {\n      var {\n        current,\n        artifacts\n      } = this;\n      var {\n        key\n      } = item;\n      var found = artifacts.update(item);\n\n      if (artifacts.wasSeen(key)) {\n        this.move(found, current);\n      } else {\n        this.advanceToKey(key);\n      }\n    }\n\n    nextInsert(item) {\n      var {\n        artifacts,\n        target,\n        current\n      } = this;\n      var node = artifacts.insertBefore(item, current);\n      target.insert(this.env, node.key, node.value, node.memo, current ? current.key : null);\n    }\n\n    startPrune() {\n      this.current = this.artifacts.head();\n      return Phase.Prune;\n    }\n\n    nextPrune() {\n      var {\n        artifacts,\n        target,\n        current\n      } = this;\n\n      if (current === null) {\n        return Phase.Done;\n      }\n\n      var node = current;\n      this.current = artifacts.nextNode(node);\n\n      if (node.shouldRemove()) {\n        artifacts.remove(node);\n        target.delete(this.env, node.key);\n      } else {\n        node.reset();\n      }\n\n      return Phase.Prune;\n    }\n\n    nextDone() {\n      this.target.done(this.env);\n    }\n\n  }\n\n  _exports.IteratorSynchronizer = IteratorSynchronizer;\n  var UPDATE_REFERENCED_VALUE = (0, _util.symbol)('UPDATE_REFERENCED_VALUE');\n  /**\n   * RootReferences refer to a constant root value within a template. For\n   * instance, the `this` in `{{this.some.prop}}`. This is typically a:\n   *\n   * - Component\n   * - Controller\n   * - Helper\n   *\n   * Or another \"top level\" template construct, if you will. PropertyReferences\n   * chain off a root reference in the template, and can then be passed around and\n   * used at will.\n   */\n\n  _exports.UPDATE_REFERENCED_VALUE = UPDATE_REFERENCED_VALUE;\n\n  class RootReference {\n    constructor(env) {\n      this.env = env;\n      this.children = (0, _util.dict)();\n      this.tag = _validator.CONSTANT_TAG;\n    }\n\n    get(key) {\n      // References should in general be identical to one another, so we can usually\n      // deduplicate them in production. However, in DEBUG we need unique references\n      // so we can properly key off them for the logging context.\n      if (true\n      /* DEBUG */\n      ) {\n        // We register the template debug context now since the reference is\n        // created before the component itself. It shouldn't be possible to cause\n        // errors when accessing the root, only subproperties of the root, so this\n        // should be fine for the time being. The exception is helpers, but they\n        // set their context earlier.\n        //\n        // TODO: This points to a need for more first class support for arguments in\n        // the debugRenderTree. The fact that we can't accurately relate an argument\n        // reference to its component is problematic for debug tooling.\n        if (!this.didSetupDebugContext) {\n          this.didSetupDebugContext = true;\n          this.env.setTemplatePathDebugContext(this, this.debugLogName || 'this', null);\n        }\n\n        return new PropertyReference(this, key, this.env);\n      } else {\n        var ref = this.children[key];\n\n        if (ref === undefined) {\n          ref = this.children[key] = new PropertyReference(this, key, this.env);\n        }\n\n        return ref;\n      }\n    }\n\n  }\n\n  _exports.RootReference = RootReference;\n\n  class ComponentRootReference extends RootReference {\n    constructor(inner, env) {\n      super(env);\n      this.inner = inner;\n    }\n\n    value() {\n      return this.inner;\n    }\n\n  }\n\n  _exports.ComponentRootReference = ComponentRootReference;\n\n  class HelperRootReference extends RootReference {\n    constructor(fn, args, env, debugName) {\n      super(env);\n      this.fn = fn;\n      this.args = args;\n      this.computeRevision = null;\n      this.computeTag = null;\n\n      if (true\n      /* DEBUG */\n      ) {\n        var name = debugName || fn.name;\n        env.setTemplatePathDebugContext(this, `(result of a \\`${name}\\` helper)`, null);\n        this.didSetupDebugContext = true;\n      }\n\n      if ((0, _validator.isConst)(args)) {\n        this.compute();\n      }\n\n      var {\n        tag,\n        computeTag\n      } = this;\n\n      if (computeTag !== null && (0, _validator.isConstTag)(computeTag)) {\n        // If the args are constant, and the first computation is constant, then\n        // the helper itself is constant and will never update.\n        tag = this.tag = _validator.CONSTANT_TAG;\n        this.computeRevision = (0, _validator.valueForTag)(tag);\n      } else {\n        var valueTag = this.valueTag = (0, _validator.createUpdatableTag)();\n        tag = this.tag = (0, _validator.combine)([args.tag, valueTag]);\n\n        if (computeTag !== null) {\n          // We computed once, so setup the cache state correctly\n          (0, _validator.updateTag)(valueTag, computeTag);\n          this.computeRevision = (0, _validator.valueForTag)(tag);\n        }\n      }\n    }\n\n    compute() {\n      this.computeTag = (0, _validator.track)(() => {\n        this.computeValue = this.fn(this.args);\n      }, true\n      /* DEBUG */\n      && this.env.getTemplatePathDebugContext(this));\n    }\n\n    value() {\n      var {\n        tag,\n        computeRevision\n      } = this;\n\n      if (computeRevision === null || !(0, _validator.validateTag)(tag, computeRevision)) {\n        this.compute();\n        (0, _validator.updateTag)(this.valueTag, this.computeTag);\n        this.computeRevision = (0, _validator.valueForTag)(tag);\n      }\n\n      return this.computeValue;\n    }\n\n  }\n  /**\n   * PropertyReferences represent a property that has been accessed on a root, or\n   * another property (or iterable, see below). `some` and `prop` in\n   * `{{this.some.prop}}` are each property references, `some` being a property of\n   * `this`, and `prop` being a property of `some`. They are constructed by\n   * recursively calling `get` on the previous reference as a template chain is\n   * followed.\n   */\n\n\n  _exports.HelperRootReference = HelperRootReference;\n\n  class PropertyReference {\n    constructor(parentReference, propertyKey, env) {\n      this.parentReference = parentReference;\n      this.propertyKey = propertyKey;\n      this.env = env;\n      this.children = (0, _util.dict)();\n      this.lastRevision = null;\n\n      if (true\n      /* DEBUG */\n      ) {\n        env.setTemplatePathDebugContext(this, propertyKey, parentReference);\n      }\n\n      var valueTag = this.valueTag = (0, _validator.createUpdatableTag)();\n      var parentReferenceTag = parentReference.tag;\n      this.tag = (0, _validator.combine)([parentReferenceTag, valueTag]);\n    }\n\n    value() {\n      var {\n        tag,\n        lastRevision,\n        lastValue,\n        parentReference,\n        valueTag,\n        propertyKey\n      } = this;\n\n      if (lastRevision === null || !(0, _validator.validateTag)(tag, lastRevision)) {\n        var parentValue = parentReference.value();\n\n        if ((0, _util.isDict)(parentValue)) {\n          var combined = (0, _validator.track)(() => {\n            lastValue = this.env.getPath(parentValue, propertyKey);\n          }, true\n          /* DEBUG */\n          && this.env.getTemplatePathDebugContext(this));\n          (0, _validator.updateTag)(valueTag, combined);\n        } else {\n          lastValue = undefined;\n        }\n\n        this.lastValue = lastValue;\n        this.lastRevision = (0, _validator.valueForTag)(tag);\n      }\n\n      return lastValue;\n    }\n\n    get(key) {\n      // References should in general be identical to one another, so we can usually\n      // deduplicate them in production. However, in DEBUG we need unique references\n      // so we can properly key off them for the logging context.\n      if (true\n      /* DEBUG */\n      ) {\n        return new PropertyReference(this, key, this.env);\n      } else {\n        var ref = this.children[key];\n\n        if (ref === undefined) {\n          ref = this.children[key] = new PropertyReference(this, key, this.env);\n        }\n\n        return ref;\n      }\n    }\n\n    [UPDATE_REFERENCED_VALUE](value) {\n      var {\n        parentReference,\n        propertyKey\n      } = this;\n      var parentValue = parentReference.value();\n      this.env.setPath(parentValue, propertyKey, value);\n    }\n\n  } //////////\n\n  /**\n   * IterationItemReferences represent an individual item in an iterable `each`.\n   * They are similar to PropertyReferences, but since iteration items need to be\n   * updated they have slightly different behavior. Concretely, they are the\n   * `item` in:\n   *\n   * ```hbs\n   * {{#each this.items as |item|}}\n   *   {{item.foo}}\n   * {{/each}}\n   * ```\n   *\n   * Properties can chain off an iteration item, just like with the other template\n   * reference types.\n   */\n\n\n  _exports.PropertyReference = PropertyReference;\n\n  class IterationItemReference {\n    constructor(parentReference, itemValue, itemKey, env) {\n      this.parentReference = parentReference;\n      this.itemValue = itemValue;\n      this.env = env;\n      this.tag = (0, _validator.createUpdatableTag)();\n      this.children = (0, _util.dict)();\n\n      if (true\n      /* DEBUG */\n      ) {\n        env.setTemplatePathDebugContext(this, (0, _util.debugToString)(itemKey), parentReference);\n      }\n    }\n\n    value() {\n      return this.itemValue;\n    }\n\n    update(value) {\n      (0, _validator.dirtyTag)(this.tag);\n      this.itemValue = value;\n    }\n\n    get(key) {\n      // References should in general be identical to one another, so we can usually\n      // deduplicate them in production. However, in DEBUG we need unique references\n      // so we can properly key off them for the logging context.\n      if (true\n      /* DEBUG */\n      ) {\n        return new PropertyReference(this, key, this.env);\n      } else {\n        var ref = this.children[key];\n\n        if (ref === undefined) {\n          ref = this.children[key] = new PropertyReference(this, key, this.env);\n        }\n\n        return ref;\n      }\n    }\n\n  }\n\n  _exports.IterationItemReference = IterationItemReference;\n  var NULL_IDENTITY = {};\n\n  var KEY = (_, index) => index;\n\n  var INDEX = (_, index) => String(index);\n\n  var IDENTITY = item => {\n    if (item === null) {\n      // Returning null as an identity will cause failures since the iterator\n      // can't tell that it's actually supposed to be null\n      return NULL_IDENTITY;\n    }\n\n    return item;\n  };\n\n  function keyForPath(path, getPath) {\n    if (true\n    /* DEBUG */\n    && path[0] === '@') {\n      throw new Error(`invalid keypath: '${path}', valid keys: @index, @identity, or a path`);\n    }\n\n    return uniqueKeyFor(item => getPath(item, path));\n  }\n\n  function makeKeyFor(key, getPath) {\n    switch (key) {\n      case '@key':\n        return uniqueKeyFor(KEY);\n\n      case '@index':\n        return uniqueKeyFor(INDEX);\n\n      case '@identity':\n        return uniqueKeyFor(IDENTITY);\n\n      default:\n        return keyForPath(key, getPath);\n    }\n  }\n\n  class WeakMapWithPrimitives {\n    get weakMap() {\n      if (this._weakMap === undefined) {\n        this._weakMap = new WeakMap();\n      }\n\n      return this._weakMap;\n    }\n\n    get primitiveMap() {\n      if (this._primitiveMap === undefined) {\n        this._primitiveMap = new Map();\n      }\n\n      return this._primitiveMap;\n    }\n\n    set(key, value) {\n      if ((0, _util.isObject)(key) || typeof key === 'function') {\n        this.weakMap.set(key, value);\n      } else {\n        this.primitiveMap.set(key, value);\n      }\n    }\n\n    get(key) {\n      if ((0, _util.isObject)(key) || typeof key === 'function') {\n        return this.weakMap.get(key);\n      } else {\n        return this.primitiveMap.get(key);\n      }\n    }\n\n  }\n\n  var IDENTITIES = new WeakMapWithPrimitives();\n\n  function identityForNthOccurence(value, count) {\n    var identities = IDENTITIES.get(value);\n\n    if (identities === undefined) {\n      identities = [];\n      IDENTITIES.set(value, identities);\n    }\n\n    var identity = identities[count];\n\n    if (identity === undefined) {\n      identity = {\n        value,\n        count\n      };\n      identities[count] = identity;\n    }\n\n    return identity;\n  }\n  /**\n   * When iterating over a list, it's possible that an item with the same unique\n   * key could be encountered twice:\n   *\n   * ```js\n   * let arr = ['same', 'different', 'same', 'same'];\n   * ```\n   *\n   * In general, we want to treat these items as _unique within the list_. To do\n   * this, we track the occurences of every item as we iterate the list, and when\n   * an item occurs more than once, we generate a new unique key just for that\n   * item, and that occurence within the list. The next time we iterate the list,\n   * and encounter an item for the nth time, we can get the _same_ key, and let\n   * Glimmer know that it should reuse the DOM for the previous nth occurence.\n   */\n\n\n  function uniqueKeyFor(keyFor) {\n    var seen = new WeakMapWithPrimitives();\n    return (value, memo) => {\n      var key = keyFor(value, memo);\n      var count = seen.get(key) || 0;\n      seen.set(key, count + 1);\n\n      if (count === 0) {\n        return key;\n      }\n\n      return identityForNthOccurence(key, count);\n    };\n  }\n\n  class IterableImpl {\n    constructor(parentRef, key, env) {\n      this.parentRef = parentRef;\n      this.key = key;\n      this.env = env;\n      this.tag = parentRef.tag;\n    }\n\n    iterate() {\n      var {\n        parentRef,\n        key,\n        env\n      } = this;\n      var iterable = parentRef.value();\n      var keyFor = makeKeyFor(key, env.getPath);\n\n      if (Array.isArray(iterable)) {\n        return new ArrayIterator(iterable, keyFor);\n      }\n\n      var maybeIterator = env.toIterator(iterable);\n\n      if (maybeIterator === null) {\n        return new ArrayIterator(_util.EMPTY_ARRAY, () => null);\n      }\n\n      return new IteratorWrapper(maybeIterator, keyFor);\n    }\n\n    valueReferenceFor(item) {\n      var {\n        parentRef,\n        env\n      } = this;\n      return new IterationItemReference(parentRef, item.value, item.memo, env);\n    }\n\n    updateValueReference(reference, item) {\n      reference.update(item.value);\n    }\n\n    memoReferenceFor(item) {\n      var {\n        parentRef,\n        env\n      } = this;\n      return new IterationItemReference(parentRef, item.memo, true\n      /* DEBUG */\n      ? `(key: ${(0, _util.debugToString)(item.key)}` : '', env);\n    }\n\n    updateMemoReference(reference, item) {\n      reference.update(item.memo);\n    }\n\n  }\n\n  _exports.IterableImpl = IterableImpl;\n\n  class IteratorWrapper {\n    constructor(inner, keyFor) {\n      this.inner = inner;\n      this.keyFor = keyFor;\n    }\n\n    isEmpty() {\n      return this.inner.isEmpty();\n    }\n\n    next() {\n      var nextValue = this.inner.next();\n\n      if (nextValue !== null) {\n        nextValue.key = this.keyFor(nextValue.value, nextValue.memo);\n      }\n\n      return nextValue;\n    }\n\n  }\n\n  class ArrayIterator {\n    constructor(iterator, keyFor) {\n      this.iterator = iterator;\n      this.keyFor = keyFor;\n      this.pos = 0;\n\n      if (iterator.length === 0) {\n        this.current = {\n          kind: 'empty'\n        };\n      } else {\n        this.current = {\n          kind: 'first',\n          value: iterator[this.pos]\n        };\n      }\n    }\n\n    isEmpty() {\n      return this.current.kind === 'empty';\n    }\n\n    next() {\n      var value;\n      var current = this.current;\n\n      if (current.kind === 'first') {\n        this.current = {\n          kind: 'progress'\n        };\n        value = current.value;\n      } else if (this.pos >= this.iterator.length - 1) {\n        return null;\n      } else {\n        value = this.iterator[++this.pos];\n      }\n\n      var {\n        keyFor\n      } = this;\n      var key = keyFor(value, this.pos);\n      var memo = this.pos;\n      return {\n        key,\n        value,\n        memo\n      };\n    }\n\n  }\n});","define(\"@glimmer/runtime\", [\"exports\", \"@glimmer/util\", \"@glimmer/reference\", \"@glimmer/program\", \"@glimmer/vm\", \"@glimmer/validator\", \"@glimmer/low-level\"], function (_exports, _util, _reference, _program, _vm2, _validator, _lowLevel) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.clear = clear;\n  _exports.capabilityFlagsFrom = capabilityFlagsFrom;\n  _exports.hasCapability = hasCapability;\n  _exports.resetDebuggerCallback = resetDebuggerCallback;\n  _exports.setDebuggerCallback = setDebuggerCallback;\n  _exports.curry = curry;\n  _exports.isCurriedComponentDefinition = isCurriedComponentDefinition;\n  _exports.isWhitespace = isWhitespace;\n  _exports.normalizeProperty = normalizeProperty;\n  _exports.AotRuntime = AotRuntime;\n  _exports.JitRuntime = JitRuntime;\n  _exports.inTransaction = inTransaction;\n  _exports.getDynamicVar = getDynamicVar;\n  _exports.renderAot = renderAot;\n  _exports.renderAotComponent = renderAotComponent;\n  _exports.renderAotMain = renderAotMain;\n  _exports.renderJitComponent = renderJitComponent;\n  _exports.renderJitMain = renderJitMain;\n  _exports.renderSync = renderSync;\n  _exports.dynamicAttribute = dynamicAttribute;\n  _exports.clientBuilder = clientBuilder;\n  _exports.isSerializationFirstNode = isSerializationFirstNode;\n  _exports.rehydrationBuilder = rehydrationBuilder;\n  _exports.TEMPLATE_ONLY_COMPONENT = _exports.SimpleComponentManager = _exports.SERIALIZATION_FIRST_NODE_STRING = _exports.RehydrateBuilder = _exports.RemoteLiveBlock = _exports.UpdatableBlockImpl = _exports.NewElementBuilder = _exports.SimpleDynamicAttribute = _exports.DynamicAttribute = _exports.CapturedPositionalArgumentsImpl = _exports.CapturedNamedArgumentsImpl = _exports.CapturedArgumentsImpl = _exports.EMPTY_ARGS = _exports.LowLevelVM = _exports.UpdatingVM = _exports.UNDEFINED_REFERENCE = _exports.PrimitiveReference = _exports.NULL_REFERENCE = _exports.ConditionalReference = _exports.ScopeImpl = _exports.EnvironmentImpl = _exports.DefaultDynamicScope = _exports.DOMTreeConstruction = _exports.IDOMChanges = _exports.DOMChanges = _exports.MINIMAL_CAPABILITIES = _exports.DEFAULT_CAPABILITIES = _exports.CurriedComponentDefinition = _exports.CursorImpl = _exports.ConcreteBounds = void 0;\n  // the VM in other classes, but are not intended to be a part of\n  // Glimmer's API.\n  var INNER_VM = (0, _util.symbol)('INNER_VM');\n  var DESTRUCTOR_STACK = (0, _util.symbol)('DESTRUCTOR_STACK');\n  var STACKS = (0, _util.symbol)('STACKS');\n  var REGISTERS = (0, _util.symbol)('REGISTERS');\n  var HEAP = (0, _util.symbol)('HEAP');\n  var CONSTANTS = (0, _util.symbol)('CONSTANTS');\n  var ARGS = (0, _util.symbol)('ARGS');\n  var PC = (0, _util.symbol)('PC');\n\n  class CursorImpl {\n    constructor(element, nextSibling) {\n      this.element = element;\n      this.nextSibling = nextSibling;\n    }\n\n  }\n\n  _exports.CursorImpl = CursorImpl;\n\n  class ConcreteBounds {\n    constructor(parentNode, first, last) {\n      this.parentNode = parentNode;\n      this.first = first;\n      this.last = last;\n    }\n\n    parentElement() {\n      return this.parentNode;\n    }\n\n    firstNode() {\n      return this.first;\n    }\n\n    lastNode() {\n      return this.last;\n    }\n\n  }\n\n  _exports.ConcreteBounds = ConcreteBounds;\n\n  class SingleNodeBounds {\n    constructor(parentNode, node) {\n      this.parentNode = parentNode;\n      this.node = node;\n    }\n\n    parentElement() {\n      return this.parentNode;\n    }\n\n    firstNode() {\n      return this.node;\n    }\n\n    lastNode() {\n      return this.node;\n    }\n\n  }\n\n  function move(bounds, reference) {\n    var parent = bounds.parentElement();\n    var first = bounds.firstNode();\n    var last = bounds.lastNode();\n    var current = first;\n\n    while (true) {\n      var next = current.nextSibling;\n      parent.insertBefore(current, reference);\n\n      if (current === last) {\n        return next;\n      }\n\n      current = next;\n    }\n  }\n\n  function clear(bounds) {\n    var parent = bounds.parentElement();\n    var first = bounds.firstNode();\n    var last = bounds.lastNode();\n    var current = first;\n\n    while (true) {\n      var next = current.nextSibling;\n      parent.removeChild(current);\n\n      if (current === last) {\n        return next;\n      }\n\n      current = next;\n    }\n  }\n\n  function legacySyncReset(parent, env) {\n    var linked = (0, _util.peekAssociated)(parent);\n\n    if (linked !== null) {\n      env.willDestroy((0, _util.snapshot)(linked));\n    }\n  }\n\n  function asyncReset(parent, env) {\n    var linked = (0, _util.takeAssociated)(parent);\n\n    if (linked !== null) {\n      env.didDestroy((0, _util.snapshot)(linked));\n    }\n  }\n\n  function legacySyncDestroy(parent, env) {\n    env.willDestroy((0, _util.destructor)(parent));\n  }\n\n  function asyncDestroy(parent, env) {\n    env.didDestroy((0, _util.destructor)(parent));\n  }\n\n  function detach(parent, env) {\n    legacySyncDestroy(parent, env);\n    clear(parent);\n    asyncDestroy(parent, env);\n  }\n\n  function detachChildren(parent, env) {\n    legacySyncReset(parent, env);\n    asyncReset(parent, env);\n    return clear(parent);\n  }\n\n  var _a;\n\n  class First {\n    constructor(node) {\n      this.node = node;\n    }\n\n    firstNode() {\n      return this.node;\n    }\n\n  }\n\n  class Last {\n    constructor(node) {\n      this.node = node;\n    }\n\n    lastNode() {\n      return this.node;\n    }\n\n  }\n\n  var CURSOR_STACK = (0, _util.symbol)('CURSOR_STACK');\n\n  class NewElementBuilder {\n    constructor(env, parentNode, nextSibling) {\n      this.constructing = null;\n      this.operations = null;\n      this[_a] = new _util.Stack();\n      this.modifierStack = new _util.Stack();\n      this.blockStack = new _util.Stack();\n      this.pushElement(parentNode, nextSibling);\n      this.env = env;\n      this.dom = env.getAppendOperations();\n      this.updateOperations = env.getDOM();\n    }\n\n    static forInitialRender(env, cursor) {\n      return new this(env, cursor.element, cursor.nextSibling).initialize();\n    }\n\n    static resume(env, block) {\n      var parentNode = block.parentElement();\n      var nextSibling = block.reset(env);\n      var stack = new this(env, parentNode, nextSibling).initialize();\n      stack.pushLiveBlock(block);\n      return stack;\n    }\n\n    initialize() {\n      this.pushSimpleBlock();\n      return this;\n    }\n\n    debugBlocks() {\n      return this.blockStack.toArray();\n    }\n\n    get element() {\n      return this[CURSOR_STACK].current.element;\n    }\n\n    get nextSibling() {\n      return this[CURSOR_STACK].current.nextSibling;\n    }\n\n    get hasBlocks() {\n      return this.blockStack.size > 0;\n    }\n\n    block() {\n      return this.blockStack.current;\n    }\n\n    popElement() {\n      this[CURSOR_STACK].pop();\n      this[CURSOR_STACK].current;\n    }\n\n    pushSimpleBlock() {\n      return this.pushLiveBlock(new SimpleLiveBlock(this.element));\n    }\n\n    pushUpdatableBlock() {\n      return this.pushLiveBlock(new UpdatableBlockImpl(this.element));\n    }\n\n    pushBlockList(list) {\n      return this.pushLiveBlock(new LiveBlockList(this.element, list));\n    }\n\n    pushLiveBlock(block, isRemote = false) {\n      var current = this.blockStack.current;\n\n      if (current !== null) {\n        if (!isRemote) {\n          current.didAppendBounds(block);\n        }\n      }\n\n      this.__openBlock();\n\n      this.blockStack.push(block);\n      return block;\n    }\n\n    popBlock() {\n      this.block().finalize(this);\n\n      this.__closeBlock();\n\n      return this.blockStack.pop();\n    }\n\n    __openBlock() {}\n\n    __closeBlock() {} // todo return seems unused\n\n\n    openElement(tag) {\n      var element = this.__openElement(tag);\n\n      this.constructing = element;\n      return element;\n    }\n\n    __openElement(tag) {\n      return this.dom.createElement(tag, this.element);\n    }\n\n    flushElement(modifiers) {\n      var parent = this.element;\n      var element = this.constructing;\n\n      this.__flushElement(parent, element);\n\n      this.constructing = null;\n      this.operations = null;\n      this.pushModifiers(modifiers);\n      this.pushElement(element, null);\n      this.didOpenElement(element);\n    }\n\n    __flushElement(parent, constructing) {\n      this.dom.insertBefore(parent, constructing, this.nextSibling);\n    }\n\n    closeElement() {\n      this.willCloseElement();\n      this.popElement();\n      return this.popModifiers();\n    }\n\n    pushRemoteElement(element, guid, insertBefore) {\n      return this.__pushRemoteElement(element, guid, insertBefore);\n    }\n\n    __pushRemoteElement(element, _guid, insertBefore) {\n      this.pushElement(element, insertBefore);\n\n      if (insertBefore === undefined) {\n        while (element.lastChild) {\n          element.removeChild(element.lastChild);\n        }\n      }\n\n      var block = new RemoteLiveBlock(element);\n      return this.pushLiveBlock(block, true);\n    }\n\n    popRemoteElement() {\n      this.popBlock();\n      this.popElement();\n    }\n\n    pushElement(element, nextSibling = null) {\n      this[CURSOR_STACK].push(new CursorImpl(element, nextSibling));\n    }\n\n    pushModifiers(modifiers) {\n      this.modifierStack.push(modifiers);\n    }\n\n    popModifiers() {\n      return this.modifierStack.pop();\n    }\n\n    didAppendBounds(bounds) {\n      this.block().didAppendBounds(bounds);\n      return bounds;\n    }\n\n    didAppendNode(node) {\n      this.block().didAppendNode(node);\n      return node;\n    }\n\n    didOpenElement(element) {\n      this.block().openElement(element);\n      return element;\n    }\n\n    willCloseElement() {\n      this.block().closeElement();\n    }\n\n    appendText(string) {\n      return this.didAppendNode(this.__appendText(string));\n    }\n\n    __appendText(text) {\n      var {\n        dom,\n        element,\n        nextSibling\n      } = this;\n      var node = dom.createTextNode(text);\n      dom.insertBefore(element, node, nextSibling);\n      return node;\n    }\n\n    __appendNode(node) {\n      this.dom.insertBefore(this.element, node, this.nextSibling);\n      return node;\n    }\n\n    __appendFragment(fragment) {\n      var first = fragment.firstChild;\n\n      if (first) {\n        var ret = new ConcreteBounds(this.element, first, fragment.lastChild);\n        this.dom.insertBefore(this.element, fragment, this.nextSibling);\n        return ret;\n      } else {\n        return new SingleNodeBounds(this.element, this.__appendComment(''));\n      }\n    }\n\n    __appendHTML(html) {\n      return this.dom.insertHTMLBefore(this.element, this.nextSibling, html);\n    }\n\n    appendDynamicHTML(value) {\n      var bounds = this.trustedContent(value);\n      this.didAppendBounds(bounds);\n    }\n\n    appendDynamicText(value) {\n      var node = this.untrustedContent(value);\n      this.didAppendNode(node);\n      return node;\n    }\n\n    appendDynamicFragment(value) {\n      var bounds = this.__appendFragment(value);\n\n      this.didAppendBounds(bounds);\n    }\n\n    appendDynamicNode(value) {\n      var node = this.__appendNode(value);\n\n      var bounds = new SingleNodeBounds(this.element, node);\n      this.didAppendBounds(bounds);\n    }\n\n    trustedContent(value) {\n      return this.__appendHTML(value);\n    }\n\n    untrustedContent(value) {\n      return this.__appendText(value);\n    }\n\n    appendComment(string) {\n      return this.didAppendNode(this.__appendComment(string));\n    }\n\n    __appendComment(string) {\n      var {\n        dom,\n        element,\n        nextSibling\n      } = this;\n      var node = dom.createComment(string);\n      dom.insertBefore(element, node, nextSibling);\n      return node;\n    }\n\n    __setAttribute(name, value, namespace) {\n      this.dom.setAttribute(this.constructing, name, value, namespace);\n    }\n\n    __setProperty(name, value) {\n      this.constructing[name] = value;\n    }\n\n    setStaticAttribute(name, value, namespace) {\n      this.__setAttribute(name, value, namespace);\n    }\n\n    setDynamicAttribute(name, value, trusting, namespace) {\n      var element = this.constructing;\n      var attribute = this.env.attributeFor(element, name, trusting, namespace);\n      attribute.set(this, value, this.env);\n      return attribute;\n    }\n\n  }\n\n  _exports.NewElementBuilder = NewElementBuilder;\n  _a = CURSOR_STACK;\n\n  class SimpleLiveBlock {\n    constructor(parent) {\n      this.parent = parent;\n      this.first = null;\n      this.last = null;\n      this.destroyables = null;\n      this.nesting = 0;\n    }\n\n    parentElement() {\n      return this.parent;\n    }\n\n    firstNode() {\n      var first = this.first;\n      return first.firstNode();\n    }\n\n    lastNode() {\n      var last = this.last;\n      return last.lastNode();\n    }\n\n    openElement(element) {\n      this.didAppendNode(element);\n      this.nesting++;\n    }\n\n    closeElement() {\n      this.nesting--;\n    }\n\n    didAppendNode(node) {\n      if (this.nesting !== 0) return;\n\n      if (!this.first) {\n        this.first = new First(node);\n      }\n\n      this.last = new Last(node);\n    }\n\n    didAppendBounds(bounds) {\n      if (this.nesting !== 0) return;\n\n      if (!this.first) {\n        this.first = bounds;\n      }\n\n      this.last = bounds;\n    }\n\n    finalize(stack) {\n      if (this.first === null) {\n        stack.appendComment('');\n      }\n    }\n\n  }\n\n  class RemoteLiveBlock extends SimpleLiveBlock {\n    [_util.DESTROY]() {\n      // In general, you only need to clear the root of a hierarchy, and should never\n      // need to clear any child nodes. This is an important constraint that gives us\n      // a strong guarantee that clearing a subtree is a single DOM operation.\n      //\n      // Because remote blocks are not normally physically nested inside of the tree\n      // that they are logically nested inside, we manually clear remote blocks when\n      // a logical parent is cleared.\n      //\n      // HOWEVER, it is currently possible for a remote block to be physically nested\n      // inside of the block it is logically contained inside of. This happens when\n      // the remote block is appended to the end of the application's entire element.\n      //\n      // The problem with that scenario is that Glimmer believes that it owns more of\n      // the DOM than it actually does. The code is attempting to write past the end\n      // of the Glimmer-managed root, but Glimmer isn't aware of that.\n      //\n      // The correct solution to that problem is for Glimmer to be aware of the end\n      // of the bounds that it owns, and once we make that change, this check could\n      // be removed.\n      //\n      // For now, a more targeted fix is to check whether the node was already removed\n      // and avoid clearing the node if it was. In most cases this shouldn't happen,\n      // so this might hide bugs where the code clears nested nodes unnecessarily,\n      // so we should eventually try to do the correct fix.\n      if (this.parentElement() === this.firstNode().parentNode) {\n        clear(this);\n      }\n    }\n\n  }\n\n  _exports.RemoteLiveBlock = RemoteLiveBlock;\n\n  class UpdatableBlockImpl extends SimpleLiveBlock {\n    reset(env) {\n      var nextSibling = detachChildren(this, env); // let nextSibling = clear(this);\n\n      this.first = null;\n      this.last = null;\n      this.destroyables = null;\n      this.nesting = 0;\n      return nextSibling;\n    }\n\n  } // FIXME: All the noops in here indicate a modelling problem\n\n\n  _exports.UpdatableBlockImpl = UpdatableBlockImpl;\n\n  class LiveBlockList {\n    constructor(parent, boundList) {\n      this.parent = parent;\n      this.boundList = boundList;\n      this.parent = parent;\n      this.boundList = boundList;\n    }\n\n    parentElement() {\n      return this.parent;\n    }\n\n    firstNode() {\n      var head = this.boundList.head();\n      return head.firstNode();\n    }\n\n    lastNode() {\n      var tail = this.boundList.tail();\n      return tail.lastNode();\n    }\n\n    openElement(_element) {}\n\n    closeElement() {}\n\n    didAppendNode(_node) {}\n\n    didAppendBounds(_bounds) {}\n\n    finalize(_stack) {}\n\n  }\n\n  function clientBuilder(env, cursor) {\n    return NewElementBuilder.forInitialRender(env, cursor);\n  } // http://www.w3.org/TR/html/syntax.html#html-integration-point\n\n\n  var SVG_INTEGRATION_POINTS = {\n    foreignObject: 1,\n    desc: 1,\n    title: 1\n  }; // http://www.w3.org/TR/html/syntax.html#adjust-svg-attributes\n  // TODO: Adjust SVG attributes\n  // http://www.w3.org/TR/html/syntax.html#parsing-main-inforeign\n  // TODO: Adjust SVG elements\n  // http://www.w3.org/TR/html/syntax.html#parsing-main-inforeign\n\n  var BLACKLIST_TABLE = Object.create(null);\n\n  class DOMOperations {\n    constructor(document) {\n      this.document = document;\n      this.setupUselessElement();\n    } // split into seperate method so that NodeDOMTreeConstruction\n    // can override it.\n\n\n    setupUselessElement() {\n      this.uselessElement = this.document.createElement('div');\n    }\n\n    createElement(tag, context) {\n      var isElementInSVGNamespace, isHTMLIntegrationPoint;\n\n      if (context) {\n        isElementInSVGNamespace = context.namespaceURI === \"http://www.w3.org/2000/svg\"\n        /* SVG */\n        || tag === 'svg';\n        isHTMLIntegrationPoint = !!SVG_INTEGRATION_POINTS[context.tagName];\n      } else {\n        isElementInSVGNamespace = tag === 'svg';\n        isHTMLIntegrationPoint = false;\n      }\n\n      if (isElementInSVGNamespace && !isHTMLIntegrationPoint) {\n        // FIXME: This does not properly handle <font> with color, face, or\n        // size attributes, which is also disallowed by the spec. We should fix\n        // this.\n        if (BLACKLIST_TABLE[tag]) {\n          throw new Error(`Cannot create a ${tag} inside an SVG context`);\n        }\n\n        return this.document.createElementNS(\"http://www.w3.org/2000/svg\"\n        /* SVG */\n        , tag);\n      } else {\n        return this.document.createElement(tag);\n      }\n    }\n\n    insertBefore(parent, node, reference) {\n      parent.insertBefore(node, reference);\n    }\n\n    insertHTMLBefore(parent, nextSibling, html) {\n      if (html === '') {\n        var comment = this.createComment('');\n        parent.insertBefore(comment, nextSibling);\n        return new ConcreteBounds(parent, comment, comment);\n      }\n\n      var prev = nextSibling ? nextSibling.previousSibling : parent.lastChild;\n      var last;\n\n      if (nextSibling === null) {\n        parent.insertAdjacentHTML(\"beforeend\"\n        /* beforeend */\n        , html);\n        last = parent.lastChild;\n      } else if (nextSibling instanceof HTMLElement) {\n        nextSibling.insertAdjacentHTML('beforebegin', html);\n        last = nextSibling.previousSibling;\n      } else {\n        // Non-element nodes do not support insertAdjacentHTML, so add an\n        // element and call it on that element. Then remove the element.\n        //\n        // This also protects Edge, IE and Firefox w/o the inspector open\n        // from merging adjacent text nodes. See ./compat/text-node-merging-fix.ts\n        var {\n          uselessElement\n        } = this;\n        parent.insertBefore(uselessElement, nextSibling);\n        uselessElement.insertAdjacentHTML(\"beforebegin\"\n        /* beforebegin */\n        , html);\n        last = uselessElement.previousSibling;\n        parent.removeChild(uselessElement);\n      }\n\n      var first = prev ? prev.nextSibling : parent.firstChild;\n      return new ConcreteBounds(parent, first, last);\n    }\n\n    createTextNode(text) {\n      return this.document.createTextNode(text);\n    }\n\n    createComment(data) {\n      return this.document.createComment(data);\n    }\n\n  }\n\n  function moveNodesBefore(source, target, nextSibling) {\n    var first = source.firstChild;\n    var last = first;\n    var current = first;\n\n    while (current) {\n      var next = current.nextSibling;\n      target.insertBefore(current, nextSibling);\n      last = current;\n      current = next;\n    }\n\n    return new ConcreteBounds(target, first, last);\n  }\n\n  var SVG_NAMESPACE = \"http://www.w3.org/2000/svg\"\n  /* SVG */\n  ; // Patch:    insertAdjacentHTML on SVG Fix\n  // Browsers: Safari, IE, Edge, Firefox ~33-34\n  // Reason:   insertAdjacentHTML does not exist on SVG elements in Safari. It is\n  //           present but throws an exception on IE and Edge. Old versions of\n  //           Firefox create nodes in the incorrect namespace.\n  // Fix:      Since IE and Edge silently fail to create SVG nodes using\n  //           innerHTML, and because Firefox may create nodes in the incorrect\n  //           namespace using innerHTML on SVG elements, an HTML-string wrapping\n  //           approach is used. A pre/post SVG tag is added to the string, then\n  //           that whole string is added to a div. The created nodes are plucked\n  //           out and applied to the target location on DOM.\n\n  function applySVGInnerHTMLFix(document, DOMClass, svgNamespace) {\n    if (!document) return DOMClass;\n\n    if (!shouldApplyFix(document, svgNamespace)) {\n      return DOMClass;\n    }\n\n    var div = document.createElement('div');\n    return class DOMChangesWithSVGInnerHTMLFix extends DOMClass {\n      insertHTMLBefore(parent, nextSibling, html) {\n        if (html === '') {\n          return super.insertHTMLBefore(parent, nextSibling, html);\n        }\n\n        if (parent.namespaceURI !== svgNamespace) {\n          return super.insertHTMLBefore(parent, nextSibling, html);\n        }\n\n        return fixSVG(parent, div, html, nextSibling);\n      }\n\n    };\n  }\n\n  function fixSVG(parent, div, html, reference) {\n    var source; // This is important, because decendants of the <foreignObject> integration\n    // point are parsed in the HTML namespace\n\n    if (parent.tagName.toUpperCase() === 'FOREIGNOBJECT') {\n      // IE, Edge: also do not correctly support using `innerHTML` on SVG\n      // namespaced elements. So here a wrapper is used.\n      var wrappedHtml = '<svg><foreignObject>' + html + '</foreignObject></svg>';\n      (0, _util.clearElement)(div);\n      div.insertAdjacentHTML(\"afterbegin\"\n      /* afterbegin */\n      , wrappedHtml);\n      source = div.firstChild.firstChild;\n    } else {\n      // IE, Edge: also do not correctly support using `innerHTML` on SVG\n      // namespaced elements. So here a wrapper is used.\n      var _wrappedHtml = '<svg>' + html + '</svg>';\n\n      (0, _util.clearElement)(div);\n      div.insertAdjacentHTML(\"afterbegin\"\n      /* afterbegin */\n      , _wrappedHtml);\n      source = div.firstChild;\n    }\n\n    return moveNodesBefore(source, parent, reference);\n  }\n\n  function shouldApplyFix(document, svgNamespace) {\n    var svg = document.createElementNS(svgNamespace, 'svg');\n\n    try {\n      svg.insertAdjacentHTML(\"beforeend\"\n      /* beforeend */\n      , '<circle></circle>');\n    } catch (e) {// IE, Edge: Will throw, insertAdjacentHTML is unsupported on SVG\n      // Safari: Will throw, insertAdjacentHTML is not present on SVG\n    } finally {\n      // FF: Old versions will create a node in the wrong namespace\n      if (svg.childNodes.length === 1 && svg.firstChild.namespaceURI === SVG_NAMESPACE) {\n        // The test worked as expected, no fix required\n        return false;\n      }\n\n      return true;\n    }\n  } // Patch:    Adjacent text node merging fix\n  // Browsers: IE, Edge, Firefox w/o inspector open\n  // Reason:   These browsers will merge adjacent text nodes. For exmaple given\n  //           <div>Hello</div> with div.insertAdjacentHTML(' world') browsers\n  //           with proper behavior will populate div.childNodes with two items.\n  //           These browsers will populate it with one merged node instead.\n  // Fix:      Add these nodes to a wrapper element, then iterate the childNodes\n  //           of that wrapper and move the nodes to their target location. Note\n  //           that potential SVG bugs will have been handled before this fix.\n  //           Note that this fix must only apply to the previous text node, as\n  //           the base implementation of `insertHTMLBefore` already handles\n  //           following text nodes correctly.\n\n\n  function applyTextNodeMergingFix(document, DOMClass) {\n    if (!document) return DOMClass;\n\n    if (!shouldApplyFix$1(document)) {\n      return DOMClass;\n    }\n\n    return class DOMChangesWithTextNodeMergingFix extends DOMClass {\n      constructor(document) {\n        super(document);\n        this.uselessComment = document.createComment('');\n      }\n\n      insertHTMLBefore(parent, nextSibling, html) {\n        if (html === '') {\n          return super.insertHTMLBefore(parent, nextSibling, html);\n        }\n\n        var didSetUselessComment = false;\n        var nextPrevious = nextSibling ? nextSibling.previousSibling : parent.lastChild;\n\n        if (nextPrevious && nextPrevious instanceof Text) {\n          didSetUselessComment = true;\n          parent.insertBefore(this.uselessComment, nextSibling);\n        }\n\n        var bounds = super.insertHTMLBefore(parent, nextSibling, html);\n\n        if (didSetUselessComment) {\n          parent.removeChild(this.uselessComment);\n        }\n\n        return bounds;\n      }\n\n    };\n  }\n\n  function shouldApplyFix$1(document) {\n    var mergingTextDiv = document.createElement('div');\n    mergingTextDiv.appendChild(document.createTextNode('first'));\n    mergingTextDiv.insertAdjacentHTML(\"beforeend\"\n    /* beforeend */\n    , 'second');\n\n    if (mergingTextDiv.childNodes.length === 2) {\n      // It worked as expected, no fix required\n      return false;\n    }\n\n    return true;\n  }\n\n  ['b', 'big', 'blockquote', 'body', 'br', 'center', 'code', 'dd', 'div', 'dl', 'dt', 'em', 'embed', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'head', 'hr', 'i', 'img', 'li', 'listing', 'main', 'meta', 'nobr', 'ol', 'p', 'pre', 'ruby', 's', 'small', 'span', 'strong', 'strike', 'sub', 'sup', 'table', 'tt', 'u', 'ul', 'var'].forEach(tag => BLACKLIST_TABLE[tag] = 1);\n  var WHITESPACE = /[\\t-\\r \\xA0\\u1680\\u180E\\u2000-\\u200A\\u2028\\u2029\\u202F\\u205F\\u3000\\uFEFF]/;\n  var doc = typeof document === 'undefined' ? null : document;\n\n  function isWhitespace(string) {\n    return WHITESPACE.test(string);\n  }\n\n  var DOM;\n\n  (function (DOM) {\n    class TreeConstruction extends DOMOperations {\n      createElementNS(namespace, tag) {\n        return this.document.createElementNS(namespace, tag);\n      }\n\n      setAttribute(element, name, value, namespace = null) {\n        if (namespace) {\n          element.setAttributeNS(namespace, name, value);\n        } else {\n          element.setAttribute(name, value);\n        }\n      }\n\n    }\n\n    DOM.TreeConstruction = TreeConstruction;\n    var appliedTreeContruction = TreeConstruction;\n    appliedTreeContruction = applyTextNodeMergingFix(doc, appliedTreeContruction);\n    appliedTreeContruction = applySVGInnerHTMLFix(doc, appliedTreeContruction, \"http://www.w3.org/2000/svg\"\n    /* SVG */\n    );\n    DOM.DOMTreeConstruction = appliedTreeContruction;\n  })(DOM || (DOM = {}));\n\n  class DOMChangesImpl extends DOMOperations {\n    constructor(document) {\n      super(document);\n      this.document = document;\n      this.namespace = null;\n    }\n\n    setAttribute(element, name, value) {\n      element.setAttribute(name, value);\n    }\n\n    removeAttribute(element, name) {\n      element.removeAttribute(name);\n    }\n\n    insertAfter(element, node, reference) {\n      this.insertBefore(element, node, reference.nextSibling);\n    }\n\n  }\n\n  _exports.IDOMChanges = DOMChangesImpl;\n  var helper = DOMChangesImpl;\n  helper = applyTextNodeMergingFix(doc, helper);\n  helper = applySVGInnerHTMLFix(doc, helper, \"http://www.w3.org/2000/svg\"\n  /* SVG */\n  );\n  var helper$1 = helper;\n  _exports.DOMChanges = helper$1;\n  var DOMTreeConstruction = DOM.DOMTreeConstruction;\n  _exports.DOMTreeConstruction = DOMTreeConstruction;\n\n  class PrimitiveReference extends _reference.ConstReference {\n    static create(value) {\n      if (value === undefined) {\n        return UNDEFINED_REFERENCE;\n      } else if (value === null) {\n        return NULL_REFERENCE;\n      } else if (value === true) {\n        return TRUE_REFERENCE;\n      } else if (value === false) {\n        return FALSE_REFERENCE;\n      } else if (typeof value === 'number') {\n        return new ValueReference(value);\n      } else {\n        return new StringReference(value);\n      }\n    }\n\n    constructor(value) {\n      super(value);\n    }\n\n    get(_key) {\n      return UNDEFINED_REFERENCE;\n    }\n\n  }\n\n  _exports.PrimitiveReference = PrimitiveReference;\n\n  class StringReference extends PrimitiveReference {\n    constructor() {\n      super(...arguments);\n      this.lengthReference = null;\n    }\n\n    get(key) {\n      if (key === 'length') {\n        var {\n          lengthReference\n        } = this;\n\n        if (lengthReference === null) {\n          lengthReference = this.lengthReference = new ValueReference(this.inner.length);\n        }\n\n        return lengthReference;\n      } else {\n        return super.get(key);\n      }\n    }\n\n  }\n\n  class ValueReference extends PrimitiveReference {\n    constructor(value) {\n      super(value);\n    }\n\n  }\n\n  var UNDEFINED_REFERENCE = new ValueReference(undefined);\n  _exports.UNDEFINED_REFERENCE = UNDEFINED_REFERENCE;\n  var NULL_REFERENCE = new ValueReference(null);\n  _exports.NULL_REFERENCE = NULL_REFERENCE;\n  var TRUE_REFERENCE = new ValueReference(true);\n  var FALSE_REFERENCE = new ValueReference(false);\n\n  class ConditionalReference {\n    constructor(inner, toBool = defaultToBool) {\n      this.inner = inner;\n      this.toBool = toBool;\n      this.tag = inner.tag;\n    }\n\n    value() {\n      return this.toBool(this.inner.value());\n    }\n\n  }\n\n  _exports.ConditionalReference = ConditionalReference;\n\n  function defaultToBool(value) {\n    return !!value;\n  }\n\n  function normalizeStringValue(value) {\n    if (isEmpty(value)) {\n      return '';\n    }\n\n    return String(value);\n  }\n\n  function shouldCoerce(value) {\n    return isString(value) || isEmpty(value) || typeof value === 'boolean' || typeof value === 'number';\n  }\n\n  function isEmpty(value) {\n    return value === null || value === undefined || typeof value.toString !== 'function';\n  }\n\n  function isSafeString(value) {\n    return typeof value === 'object' && value !== null && typeof value.toHTML === 'function';\n  }\n\n  function isNode(value) {\n    return typeof value === 'object' && value !== null && typeof value.nodeType === 'number';\n  }\n\n  function isFragment(value) {\n    return isNode(value) && value.nodeType === 11;\n  }\n\n  function isString(value) {\n    return typeof value === 'string';\n  }\n  /*\n   * @method normalizeProperty\n   * @param element {HTMLElement}\n   * @param slotName {String}\n   * @returns {Object} { name, type }\n   */\n\n\n  function normalizeProperty(element, slotName) {\n    var type, normalized;\n\n    if (slotName in element) {\n      normalized = slotName;\n      type = 'prop';\n    } else {\n      var lower = slotName.toLowerCase();\n\n      if (lower in element) {\n        type = 'prop';\n        normalized = lower;\n      } else {\n        type = 'attr';\n        normalized = slotName;\n      }\n    }\n\n    if (type === 'prop' && (normalized.toLowerCase() === 'style' || preferAttr(element.tagName, normalized))) {\n      type = 'attr';\n    }\n\n    return {\n      normalized,\n      type\n    };\n  } // * browser bug\n  // * strange spec outlier\n\n\n  var ATTR_OVERRIDES = {\n    INPUT: {\n      form: true,\n      // Chrome 46.0.2464.0: 'autocorrect' in document.createElement('input') === false\n      // Safari 8.0.7: 'autocorrect' in document.createElement('input') === false\n      // Mobile Safari (iOS 8.4 simulator): 'autocorrect' in document.createElement('input') === true\n      autocorrect: true,\n      // Chrome 54.0.2840.98: 'list' in document.createElement('input') === true\n      // Safari 9.1.3: 'list' in document.createElement('input') === false\n      list: true\n    },\n    // element.form is actually a legitimate readOnly property, that is to be\n    // mutated, but must be mutated by setAttribute...\n    SELECT: {\n      form: true\n    },\n    OPTION: {\n      form: true\n    },\n    TEXTAREA: {\n      form: true\n    },\n    LABEL: {\n      form: true\n    },\n    FIELDSET: {\n      form: true\n    },\n    LEGEND: {\n      form: true\n    },\n    OBJECT: {\n      form: true\n    },\n    BUTTON: {\n      form: true\n    }\n  };\n\n  function preferAttr(tagName, propName) {\n    var tag = ATTR_OVERRIDES[tagName.toUpperCase()];\n    return tag && tag[propName.toLowerCase()] || false;\n  }\n\n  var badProtocols = ['javascript:', 'vbscript:'];\n  var badTags = ['A', 'BODY', 'LINK', 'IMG', 'IFRAME', 'BASE', 'FORM'];\n  var badTagsForDataURI = ['EMBED'];\n  var badAttributes = ['href', 'src', 'background', 'action'];\n  var badAttributesForDataURI = ['src'];\n\n  function has(array, item) {\n    return array.indexOf(item) !== -1;\n  }\n\n  function checkURI(tagName, attribute) {\n    return (tagName === null || has(badTags, tagName)) && has(badAttributes, attribute);\n  }\n\n  function checkDataURI(tagName, attribute) {\n    if (tagName === null) return false;\n    return has(badTagsForDataURI, tagName) && has(badAttributesForDataURI, attribute);\n  }\n\n  function requiresSanitization(tagName, attribute) {\n    return checkURI(tagName, attribute) || checkDataURI(tagName, attribute);\n  }\n\n  function sanitizeAttributeValue(env, element, attribute, value) {\n    var tagName = null;\n\n    if (value === null || value === undefined) {\n      return value;\n    }\n\n    if (isSafeString(value)) {\n      return value.toHTML();\n    }\n\n    if (!element) {\n      tagName = null;\n    } else {\n      tagName = element.tagName.toUpperCase();\n    }\n\n    var str = normalizeStringValue(value);\n\n    if (checkURI(tagName, attribute)) {\n      var protocol = env.protocolForURL(str);\n\n      if (has(badProtocols, protocol)) {\n        return `unsafe:${str}`;\n      }\n    }\n\n    if (checkDataURI(tagName, attribute)) {\n      return `unsafe:${str}`;\n    }\n\n    return str;\n  }\n\n  function dynamicAttribute(element, attr, namespace) {\n    var {\n      tagName,\n      namespaceURI\n    } = element;\n    var attribute = {\n      element,\n      name: attr,\n      namespace\n    };\n\n    if (namespaceURI === \"http://www.w3.org/2000/svg\"\n    /* SVG */\n    ) {\n        return buildDynamicAttribute(tagName, attr, attribute);\n      }\n\n    var {\n      type,\n      normalized\n    } = normalizeProperty(element, attr);\n\n    if (type === 'attr') {\n      return buildDynamicAttribute(tagName, normalized, attribute);\n    } else {\n      return buildDynamicProperty(tagName, normalized, attribute);\n    }\n  }\n\n  function buildDynamicAttribute(tagName, name, attribute) {\n    if (requiresSanitization(tagName, name)) {\n      return new SafeDynamicAttribute(attribute);\n    } else {\n      return new SimpleDynamicAttribute(attribute);\n    }\n  }\n\n  function buildDynamicProperty(tagName, name, attribute) {\n    if (requiresSanitization(tagName, name)) {\n      return new SafeDynamicProperty(name, attribute);\n    }\n\n    if (isUserInputValue(tagName, name)) {\n      return new InputValueDynamicAttribute(name, attribute);\n    }\n\n    if (isOptionSelected(tagName, name)) {\n      return new OptionSelectedDynamicAttribute(name, attribute);\n    }\n\n    return new DefaultDynamicProperty(name, attribute);\n  }\n\n  class DynamicAttribute {\n    constructor(attribute) {\n      this.attribute = attribute;\n    }\n\n  }\n\n  _exports.DynamicAttribute = DynamicAttribute;\n\n  class SimpleDynamicAttribute extends DynamicAttribute {\n    set(dom, value, _env) {\n      var normalizedValue = normalizeValue(value);\n\n      if (normalizedValue !== null) {\n        var {\n          name: _name2,\n          namespace\n        } = this.attribute;\n\n        dom.__setAttribute(_name2, normalizedValue, namespace);\n      }\n    }\n\n    update(value, _env) {\n      var normalizedValue = normalizeValue(value);\n      var {\n        element,\n        name\n      } = this.attribute;\n\n      if (normalizedValue === null) {\n        element.removeAttribute(name);\n      } else {\n        element.setAttribute(name, normalizedValue);\n      }\n    }\n\n  }\n\n  _exports.SimpleDynamicAttribute = SimpleDynamicAttribute;\n\n  class DefaultDynamicProperty extends DynamicAttribute {\n    constructor(normalizedName, attribute) {\n      super(attribute);\n      this.normalizedName = normalizedName;\n    }\n\n    set(dom, value, _env) {\n      if (value !== null && value !== undefined) {\n        this.value = value;\n\n        dom.__setProperty(this.normalizedName, value);\n      }\n    }\n\n    update(value, _env) {\n      var {\n        element\n      } = this.attribute;\n\n      if (this.value !== value) {\n        element[this.normalizedName] = this.value = value;\n\n        if (value === null || value === undefined) {\n          this.removeAttribute();\n        }\n      }\n    }\n\n    removeAttribute() {\n      // TODO this sucks but to preserve properties first and to meet current\n      // semantics we must do this.\n      var {\n        element,\n        namespace\n      } = this.attribute;\n\n      if (namespace) {\n        element.removeAttributeNS(namespace, this.normalizedName);\n      } else {\n        element.removeAttribute(this.normalizedName);\n      }\n    }\n\n  }\n\n  class SafeDynamicProperty extends DefaultDynamicProperty {\n    set(dom, value, env) {\n      var {\n        element,\n        name\n      } = this.attribute;\n      var sanitized = sanitizeAttributeValue(env, element, name, value);\n      super.set(dom, sanitized, env);\n    }\n\n    update(value, env) {\n      var {\n        element,\n        name\n      } = this.attribute;\n      var sanitized = sanitizeAttributeValue(env, element, name, value);\n      super.update(sanitized, env);\n    }\n\n  }\n\n  class SafeDynamicAttribute extends SimpleDynamicAttribute {\n    set(dom, value, env) {\n      var {\n        element,\n        name\n      } = this.attribute;\n      var sanitized = sanitizeAttributeValue(env, element, name, value);\n      super.set(dom, sanitized, env);\n    }\n\n    update(value, env) {\n      var {\n        element,\n        name\n      } = this.attribute;\n      var sanitized = sanitizeAttributeValue(env, element, name, value);\n      super.update(sanitized, env);\n    }\n\n  }\n\n  class InputValueDynamicAttribute extends DefaultDynamicProperty {\n    set(dom, value) {\n      dom.__setProperty('value', normalizeStringValue(value));\n    }\n\n    update(value) {\n      var input = this.attribute.element;\n      var currentValue = input.value;\n      var normalizedValue = normalizeStringValue(value);\n\n      if (currentValue !== normalizedValue) {\n        input.value = normalizedValue;\n      }\n    }\n\n  }\n\n  class OptionSelectedDynamicAttribute extends DefaultDynamicProperty {\n    set(dom, value) {\n      if (value !== null && value !== undefined && value !== false) {\n        dom.__setProperty('selected', true);\n      }\n    }\n\n    update(value) {\n      var option = this.attribute.element;\n\n      if (value) {\n        option.selected = true;\n      } else {\n        option.selected = false;\n      }\n    }\n\n  }\n\n  function isOptionSelected(tagName, attribute) {\n    return tagName === 'OPTION' && attribute === 'selected';\n  }\n\n  function isUserInputValue(tagName, attribute) {\n    return (tagName === 'INPUT' || tagName === 'TEXTAREA') && attribute === 'value';\n  }\n\n  function normalizeValue(value) {\n    if (value === false || value === undefined || value === null || typeof value.toString === 'undefined') {\n      return null;\n    }\n\n    if (value === true) {\n      return '';\n    } // onclick function etc in SSR\n\n\n    if (typeof value === 'function') {\n      return null;\n    }\n\n    return String(value);\n  }\n\n  var _a$1;\n\n  class ScopeImpl {\n    constructor( // the 0th slot is `self`\n    slots, callerScope, // named arguments and blocks passed to a layout that uses eval\n    evalScope, // locals in scope when the partial was invoked\n    partialMap) {\n      this.slots = slots;\n      this.callerScope = callerScope;\n      this.evalScope = evalScope;\n      this.partialMap = partialMap;\n    }\n\n    static root(self, size = 0) {\n      var refs = new Array(size + 1);\n\n      for (var i = 0; i <= size; i++) {\n        refs[i] = UNDEFINED_REFERENCE;\n      }\n\n      return new ScopeImpl(refs, null, null, null).init({\n        self\n      });\n    }\n\n    static sized(size = 0) {\n      var refs = new Array(size + 1);\n\n      for (var i = 0; i <= size; i++) {\n        refs[i] = UNDEFINED_REFERENCE;\n      }\n\n      return new ScopeImpl(refs, null, null, null);\n    }\n\n    init({\n      self\n    }) {\n      this.slots[0] = self;\n      return this;\n    }\n\n    getSelf() {\n      return this.get(0);\n    }\n\n    getSymbol(symbol$$1) {\n      return this.get(symbol$$1);\n    }\n\n    getBlock(symbol$$1) {\n      var block = this.get(symbol$$1);\n      return block === UNDEFINED_REFERENCE ? null : block;\n    }\n\n    getEvalScope() {\n      return this.evalScope;\n    }\n\n    getPartialMap() {\n      return this.partialMap;\n    }\n\n    bind(symbol$$1, value) {\n      this.set(symbol$$1, value);\n    }\n\n    bindSelf(self) {\n      this.set(0, self);\n    }\n\n    bindSymbol(symbol$$1, value) {\n      this.set(symbol$$1, value);\n    }\n\n    bindBlock(symbol$$1, value) {\n      this.set(symbol$$1, value);\n    }\n\n    bindEvalScope(map) {\n      this.evalScope = map;\n    }\n\n    bindPartialMap(map) {\n      this.partialMap = map;\n    }\n\n    bindCallerScope(scope) {\n      this.callerScope = scope;\n    }\n\n    getCallerScope() {\n      return this.callerScope;\n    }\n\n    child() {\n      return new ScopeImpl(this.slots.slice(), this.callerScope, this.evalScope, this.partialMap);\n    }\n\n    get(index) {\n      if (index >= this.slots.length) {\n        throw new RangeError(`BUG: cannot get $${index} from scope; length=${this.slots.length}`);\n      }\n\n      return this.slots[index];\n    }\n\n    set(index, value) {\n      if (index >= this.slots.length) {\n        throw new RangeError(`BUG: cannot get $${index} from scope; length=${this.slots.length}`);\n      }\n\n      this.slots[index] = value;\n    }\n\n  }\n\n  _exports.ScopeImpl = ScopeImpl;\n  var TRANSACTION = (0, _util.symbol)('TRANSACTION');\n\n  class TransactionImpl {\n    constructor() {\n      this.scheduledInstallManagers = [];\n      this.scheduledInstallModifiers = [];\n      this.scheduledUpdateModifierManagers = [];\n      this.scheduledUpdateModifiers = [];\n      this.createdComponents = [];\n      this.createdManagers = [];\n      this.updatedComponents = [];\n      this.updatedManagers = [];\n      this.destructors = [];\n    }\n\n    didCreate(component, manager) {\n      this.createdComponents.push(component);\n      this.createdManagers.push(manager);\n    }\n\n    didUpdate(component, manager) {\n      this.updatedComponents.push(component);\n      this.updatedManagers.push(manager);\n    }\n\n    scheduleInstallModifier(modifier, manager) {\n      this.scheduledInstallModifiers.push(modifier);\n      this.scheduledInstallManagers.push(manager);\n    }\n\n    scheduleUpdateModifier(modifier, manager) {\n      this.scheduledUpdateModifiers.push(modifier);\n      this.scheduledUpdateModifierManagers.push(manager);\n    }\n\n    willDestroy(d) {\n      d[_util.WILL_DROP]();\n    }\n\n    didDestroy(d) {\n      this.destructors.push(d);\n    }\n\n    commit() {\n      var {\n        createdComponents,\n        createdManagers\n      } = this;\n\n      for (var i = 0; i < createdComponents.length; i++) {\n        var component = createdComponents[i];\n        var manager = createdManagers[i];\n        manager.didCreate(component);\n      }\n\n      var {\n        updatedComponents,\n        updatedManagers\n      } = this;\n\n      for (var _i = 0; _i < updatedComponents.length; _i++) {\n        var _component = updatedComponents[_i];\n        var _manager2 = updatedManagers[_i];\n\n        _manager2.didUpdate(_component);\n      }\n\n      var {\n        destructors\n      } = this;\n\n      for (var _i2 = 0; _i2 < destructors.length; _i2++) {\n        destructors[_i2][_util.DID_DROP]();\n      }\n\n      var {\n        scheduledInstallManagers,\n        scheduledInstallModifiers\n      } = this;\n\n      for (var _i3 = 0; _i3 < scheduledInstallManagers.length; _i3++) {\n        var modifier = scheduledInstallModifiers[_i3];\n        var _manager3 = scheduledInstallManagers[_i3];\n\n        _manager3.install(modifier);\n      }\n\n      var {\n        scheduledUpdateModifierManagers,\n        scheduledUpdateModifiers\n      } = this;\n\n      for (var _i4 = 0; _i4 < scheduledUpdateModifierManagers.length; _i4++) {\n        var _modifier = scheduledUpdateModifiers[_i4];\n        var _manager4 = scheduledUpdateModifierManagers[_i4];\n\n        _manager4.update(_modifier);\n      }\n    }\n\n  }\n\n  function defaultDelegateFn(delegateFn, delegateDefault) {\n    var defaultFn = delegateFn !== undefined ? delegateFn : delegateDefault;\n\n    if (true\n    /* DEBUG */\n    ) {\n      // Bind to `null` in DEBUG since these methods are assumed to be pure\n      // functions, so we can reassign them.\n      return defaultFn.bind(null);\n    }\n\n    return defaultFn;\n  }\n\n  class EnvironmentImpl {\n    constructor(options, delegate) {\n      this.delegate = delegate;\n      this[_a$1] = null; // Delegate methods and values\n\n      this.extra = this.delegate.extra;\n      this.isInteractive = typeof this.delegate.isInteractive === 'boolean' ? this.delegate.isInteractive : true;\n      this.protocolForURL = defaultDelegateFn(this.delegate.protocolForURL, defaultGetProtocolForURL);\n      this.attributeFor = defaultDelegateFn(this.delegate.attributeFor, defaultAttributeFor);\n      this.getPath = defaultDelegateFn(this.delegate.getPath, defaultGetPath);\n      this.setPath = defaultDelegateFn(this.delegate.setPath, defaultSetPath);\n      this.toBool = defaultDelegateFn(this.delegate.toBool, defaultToBool$1);\n      this.toIterator = defaultDelegateFn(this.delegate.toIterator, defaultToIterator);\n\n      if (options.appendOperations) {\n        this.appendOperations = options.appendOperations;\n        this.updateOperations = options.updateOperations;\n      } else if (options.document) {\n        this.appendOperations = new DOMTreeConstruction(options.document);\n        this.updateOperations = new DOMChangesImpl(options.document);\n      } else if (true\n      /* DEBUG */\n      ) {\n        throw new Error('you must pass document or appendOperations to a new runtime');\n      }\n    }\n\n    getTemplatePathDebugContext(ref) {\n      if (this.delegate.getTemplatePathDebugContext !== undefined) {\n        return this.delegate.getTemplatePathDebugContext(ref);\n      }\n\n      return '';\n    }\n\n    setTemplatePathDebugContext(ref, desc, parentRef) {\n      if (this.delegate.setTemplatePathDebugContext !== undefined) {\n        this.delegate.setTemplatePathDebugContext(ref, desc, parentRef);\n      }\n    }\n\n    iterableFor(ref, inputKey) {\n      // TODO: We should add an assertion here to verify that we are passed a\n      // TemplatePathReference, but we can only do that once we remove\n      // or significantly rewrite @glimmer/object-reference\n      var key = inputKey === null ? '@identity' : String(inputKey);\n      return new _reference.IterableImpl(ref, key, this);\n    }\n\n    toConditionalReference(input) {\n      return new ConditionalReference(input, this.delegate.toBool);\n    }\n\n    getAppendOperations() {\n      return this.appendOperations;\n    }\n\n    getDOM() {\n      return this.updateOperations;\n    }\n\n    begin() {\n      if (this.delegate.onTransactionBegin !== undefined) {\n        this.delegate.onTransactionBegin();\n      }\n\n      this[TRANSACTION] = new TransactionImpl();\n    }\n\n    get transaction() {\n      return this[TRANSACTION];\n    }\n\n    didCreate(component, manager) {\n      this.transaction.didCreate(component, manager);\n    }\n\n    didUpdate(component, manager) {\n      this.transaction.didUpdate(component, manager);\n    }\n\n    scheduleInstallModifier(modifier, manager) {\n      if (this.isInteractive) {\n        this.transaction.scheduleInstallModifier(modifier, manager);\n      }\n    }\n\n    scheduleUpdateModifier(modifier, manager) {\n      if (this.isInteractive) {\n        this.transaction.scheduleUpdateModifier(modifier, manager);\n      }\n    }\n\n    willDestroy(d) {\n      this.transaction.willDestroy(d);\n    }\n\n    didDestroy(d) {\n      this.transaction.didDestroy(d);\n    }\n\n    commit() {\n      var transaction = this.transaction;\n      this[TRANSACTION] = null;\n      transaction.commit();\n\n      if (this.delegate.onTransactionCommit !== undefined) {\n        this.delegate.onTransactionCommit();\n      }\n    }\n\n  }\n\n  _exports.EnvironmentImpl = EnvironmentImpl;\n  _a$1 = TRANSACTION;\n\n  function defaultGetProtocolForURL(url) {\n    if (typeof URL === 'object' || typeof URL === 'undefined') {\n      return legacyProtocolForURL(url);\n    } else if (typeof document !== 'undefined') {\n      return new URL(url, document.baseURI).protocol;\n    } else {\n      return new URL(url, 'https://www.example.com').protocol;\n    }\n  }\n\n  function defaultAttributeFor(element, attr, _isTrusting, namespace) {\n    return dynamicAttribute(element, attr, namespace);\n  }\n\n  function defaultGetPath(obj, key) {\n    return obj[key];\n  }\n\n  function defaultSetPath(obj, key, value) {\n    return obj[key] = value;\n  }\n\n  function defaultToBool$1(value) {\n    return Boolean(value);\n  }\n\n  function defaultToIterator(value) {\n    if (value && value[Symbol.iterator]) {\n      return value[Symbol.iterator]();\n    }\n\n    return null;\n  }\n\n  function legacyProtocolForURL(url) {\n    if (typeof window === 'undefined') {\n      var match = /^([a-z][a-z0-9.+-]*:)?(\\/\\/)?([\\S\\s]*)/i.exec(url);\n      return match && match[1] ? match[1].toLowerCase() : '';\n    }\n\n    var anchor = window.document.createElement('a');\n    anchor.href = url;\n    return anchor.protocol;\n  }\n\n  class DefaultRuntimeResolver {\n    constructor(inner) {\n      this.inner = inner;\n    }\n\n    lookupComponent(name, referrer) {\n      if (this.inner.lookupComponent) {\n        var component = this.inner.lookupComponent(name, referrer);\n\n        if (component === undefined) {\n          throw new Error(`Unexpected component ${name} (from ${referrer}) (lookupComponent returned undefined)`);\n        }\n\n        return component;\n      } else {\n        throw new Error('lookupComponent not implemented on RuntimeResolver.');\n      }\n    }\n\n    lookupPartial(name, referrer) {\n      if (this.inner.lookupPartial) {\n        var partial = this.inner.lookupPartial(name, referrer);\n\n        if (partial === undefined) {\n          throw new Error(`Unexpected partial ${name} (from ${referrer}) (lookupPartial returned undefined)`);\n        }\n\n        return partial;\n      } else {\n        throw new Error('lookupPartial not implemented on RuntimeResolver.');\n      }\n    }\n\n    resolve(handle) {\n      if (this.inner.resolve) {\n        var resolved = this.inner.resolve(handle);\n\n        if (resolved === undefined) {\n          throw new Error(`Unexpected handle ${handle} (resolve returned undefined)`);\n        }\n\n        return resolved;\n      } else {\n        throw new Error('resolve not implemented on RuntimeResolver.');\n      }\n    }\n\n    compilable(locator) {\n      if (this.inner.compilable) {\n        var resolved = this.inner.compilable(locator);\n\n        if (resolved === undefined) {\n          throw new Error(`Unable to compile ${name} (compilable returned undefined)`);\n        }\n\n        return resolved;\n      } else {\n        throw new Error('compilable not implemented on RuntimeResolver.');\n      }\n    }\n\n    getInvocation(locator) {\n      if (this.inner.getInvocation) {\n        var invocation = this.inner.getInvocation(locator);\n\n        if (invocation === undefined) {\n          throw new Error(`Unable to get invocation for ${JSON.stringify(locator)} (getInvocation returned undefined)`);\n        }\n\n        return invocation;\n      } else {\n        throw new Error('getInvocation not implemented on RuntimeResolver.');\n      }\n    }\n\n  }\n\n  function AotRuntime(options, program, resolver = {}, delegate = {}) {\n    var env = new EnvironmentImpl(options, delegate);\n    return {\n      env,\n      resolver: new DefaultRuntimeResolver(resolver),\n      program: _program.RuntimeProgramImpl.hydrate(program)\n    };\n  }\n\n  function JitRuntime(options, delegate = {}, context, resolver = {}) {\n    return {\n      env: new EnvironmentImpl(options, delegate),\n      program: new _program.RuntimeProgramImpl(context.program.constants, context.program.heap),\n      resolver: new DefaultRuntimeResolver(resolver)\n    };\n  }\n\n  function inTransaction(env, cb) {\n    if (!env[TRANSACTION]) {\n      env.begin();\n\n      try {\n        cb();\n      } finally {\n        env.commit();\n      }\n    } else {\n      cb();\n    }\n  }\n\n  class AppendOpcodes {\n    constructor() {\n      this.evaluateOpcode = (0, _util.fillNulls)(107\n      /* Size */\n      ).slice();\n    }\n\n    add(name, evaluate, kind = 'syscall') {\n      this.evaluateOpcode[name] = {\n        syscall: kind !== 'machine',\n        evaluate\n      };\n    }\n\n    debugBefore(vm, opcode) {\n      var params = undefined;\n      var opName = undefined;\n      var sp;\n      return {\n        sp: sp,\n        pc: vm.fetchValue(_vm2.$pc),\n        name: opName,\n        params,\n        type: opcode.type,\n        isMachine: opcode.isMachine,\n        size: opcode.size,\n        state: undefined\n      };\n    }\n\n    debugAfter(vm, pre) {}\n\n    evaluate(vm, opcode, type) {\n      var operation = this.evaluateOpcode[type];\n\n      if (operation.syscall) {\n        operation.evaluate(vm, opcode);\n      } else {\n        operation.evaluate(vm[INNER_VM], opcode);\n      }\n    }\n\n  }\n\n  var APPEND_OPCODES = new AppendOpcodes();\n\n  class AbstractOpcode {\n    constructor() {\n      (0, _util.initializeGuid)(this);\n    }\n\n  }\n\n  class UpdatingOpcode extends AbstractOpcode {\n    constructor() {\n      super(...arguments);\n      this.next = null;\n      this.prev = null;\n    }\n\n  }\n  /**\n   * These utility functions are related to @glimmer/validator, but they aren't\n   * meant to be consumed publicly. They exist as an optimization, and pull in\n   * types that are otherwise unrelated to the validation system. Keeping them\n   * here keeps the validation system isolated, and allows it to avoid pulling in\n   * extra type information (which can lead to issues in public types).\n   */\n\n\n  function combineTagged(tagged) {\n    var optimized = [];\n\n    for (var i = 0, l = tagged.length; i < l; i++) {\n      var tag = tagged[i].tag;\n      if (tag === _validator.CONSTANT_TAG) continue;\n      optimized.push(tag);\n    }\n\n    return (0, _validator.createCombinatorTag)(optimized);\n  }\n\n  function combineSlice(slice) {\n    var optimized = [];\n    var node = slice.head();\n\n    while (node !== null) {\n      var tag = node.tag;\n      if (tag !== _validator.CONSTANT_TAG) optimized.push(tag);\n      node = slice.nextNode(node);\n    }\n\n    return (0, _validator.createCombinatorTag)(optimized);\n  }\n\n  class ConcatReference extends _reference.CachedReference {\n    constructor(parts) {\n      super();\n      this.parts = parts;\n      this.tag = combineTagged(parts);\n    }\n\n    compute() {\n      var parts = new Array();\n\n      for (var i = 0; i < this.parts.length; i++) {\n        var value = this.parts[i].value();\n\n        if (value !== null && value !== undefined) {\n          parts[i] = castToString(value);\n        }\n      }\n\n      if (parts.length > 0) {\n        return parts.join('');\n      }\n\n      return null;\n    }\n\n  }\n\n  function castToString(value) {\n    if (typeof value.toString !== 'function') {\n      return '';\n    }\n\n    return String(value);\n  }\n\n  APPEND_OPCODES.add(16\n  /* Helper */\n  , (vm, {\n    op1: handle\n  }) => {\n    var stack = vm.stack;\n    var helper = vm.runtime.resolver.resolve(handle);\n    var args = stack.pop();\n    var value = helper(args, vm);\n    vm.loadValue(_vm2.$v0, value);\n  });\n  APPEND_OPCODES.add(22\n  /* GetVariable */\n  , (vm, {\n    op1: symbol$$1\n  }) => {\n    var expr = vm.referenceForSymbol(symbol$$1);\n    vm.stack.push(expr);\n  });\n  APPEND_OPCODES.add(19\n  /* SetVariable */\n  , (vm, {\n    op1: symbol$$1\n  }) => {\n    var expr = vm.stack.pop();\n    vm.scope().bindSymbol(symbol$$1, expr);\n  });\n  APPEND_OPCODES.add(21\n  /* SetJitBlock */\n  , (vm, {\n    op1: symbol$$1\n  }) => {\n    var handle = vm.stack.pop();\n    var scope = vm.stack.pop();\n    var table = vm.stack.pop();\n    var block = table ? [handle, scope, table] : null;\n    vm.scope().bindBlock(symbol$$1, block);\n  }, 'jit');\n  APPEND_OPCODES.add(20\n  /* SetAotBlock */\n  , (vm, {\n    op1: symbol$$1\n  }) => {\n    var handle = vm.stack.pop();\n    var scope = vm.stack.pop();\n    var table = vm.stack.pop();\n    var block = table ? [handle, scope, table] : null;\n    vm.scope().bindBlock(symbol$$1, block);\n  });\n  APPEND_OPCODES.add(105\n  /* ResolveMaybeLocal */\n  , (vm, {\n    op1: _name\n  }) => {\n    var name = vm[CONSTANTS].getString(_name);\n    var locals = vm.scope().getPartialMap();\n    var ref = locals[name];\n\n    if (ref === undefined) {\n      ref = vm.getSelf().get(name);\n    }\n\n    vm.stack.push(ref);\n  });\n  APPEND_OPCODES.add(37\n  /* RootScope */\n  , (vm, {\n    op1: symbols\n  }) => {\n    vm.pushRootScope(symbols);\n  });\n  APPEND_OPCODES.add(23\n  /* GetProperty */\n  , (vm, {\n    op1: _key\n  }) => {\n    var key = vm[CONSTANTS].getString(_key);\n    var expr = vm.stack.pop();\n    vm.stack.push(expr.get(key));\n  });\n  APPEND_OPCODES.add(24\n  /* GetBlock */\n  , (vm, {\n    op1: _block\n  }) => {\n    var {\n      stack\n    } = vm;\n    var block = vm.scope().getBlock(_block);\n    stack.push(block);\n  });\n  APPEND_OPCODES.add(25\n  /* JitSpreadBlock */\n  , vm => {\n    var {\n      stack\n    } = vm;\n    var block = stack.pop();\n\n    if (block && !isUndefinedReference(block)) {\n      stack.push(block[2]);\n      stack.push(block[1]);\n      stack.push(block[0]);\n    } else {\n      stack.push(null);\n      stack.push(null);\n      stack.push(null);\n    }\n  });\n\n  function isUndefinedReference(input) {\n    return input === UNDEFINED_REFERENCE;\n  }\n\n  APPEND_OPCODES.add(26\n  /* HasBlock */\n  , vm => {\n    var {\n      stack\n    } = vm;\n    var block = stack.pop();\n\n    if (block && !isUndefinedReference(block)) {\n      stack.push(TRUE_REFERENCE);\n    } else {\n      stack.push(FALSE_REFERENCE);\n    }\n  });\n  APPEND_OPCODES.add(27\n  /* HasBlockParams */\n  , vm => {\n    // FIXME(mmun): should only need to push the symbol table\n    var block = vm.stack.pop();\n    var scope = vm.stack.pop();\n    var table = vm.stack.pop();\n    var hasBlockParams = table && table.parameters.length;\n    vm.stack.push(hasBlockParams ? TRUE_REFERENCE : FALSE_REFERENCE);\n  });\n  APPEND_OPCODES.add(28\n  /* Concat */\n  , (vm, {\n    op1: count\n  }) => {\n    var out = new Array(count);\n\n    for (var i = count; i > 0; i--) {\n      var offset = i - 1;\n      out[offset] = vm.stack.pop();\n    }\n\n    vm.stack.push(new ConcatReference(out));\n  });\n  /**\n   * Converts a ComponentCapabilities object into a 32-bit integer representation.\n   */\n\n  function capabilityFlagsFrom(capabilities) {\n    return 0 | (capabilities.dynamicLayout ? 1\n    /* DynamicLayout */\n    : 0) | (capabilities.dynamicTag ? 2\n    /* DynamicTag */\n    : 0) | (capabilities.prepareArgs ? 4\n    /* PrepareArgs */\n    : 0) | (capabilities.createArgs ? 8\n    /* CreateArgs */\n    : 0) | (capabilities.attributeHook ? 16\n    /* AttributeHook */\n    : 0) | (capabilities.elementHook ? 32\n    /* ElementHook */\n    : 0) | (capabilities.dynamicScope ? 64\n    /* DynamicScope */\n    : 0) | (capabilities.createCaller ? 128\n    /* CreateCaller */\n    : 0) | (capabilities.updateHook ? 256\n    /* UpdateHook */\n    : 0) | (capabilities.createInstance ? 512\n    /* CreateInstance */\n    : 0) | (capabilities.wrapped ? 1024\n    /* Wrapped */\n    : 0) | (capabilities.willDestroy ? 2048\n    /* WillDestroy */\n    : 0);\n  }\n\n  function managerHasCapability(_manager, capabilities, capability) {\n    return !!(capabilities & capability);\n  }\n\n  function hasCapability(capabilities, capability) {\n    return !!(capabilities & capability);\n  }\n\n  var _a$2;\n\n  var CURRIED_COMPONENT_DEFINITION_BRAND = (0, _util.symbol)('CURRIED COMPONENT DEFINITION');\n\n  function isCurriedComponentDefinition(definition) {\n    return !!(definition && definition[CURRIED_COMPONENT_DEFINITION_BRAND]);\n  }\n\n  function isComponentDefinition(definition) {\n    return !!(definition && definition[CURRIED_COMPONENT_DEFINITION_BRAND]);\n  }\n\n  class CurriedComponentDefinition {\n    /** @internal */\n    constructor(inner, args) {\n      this.inner = inner;\n      this.args = args;\n      this[_a$2] = true;\n    }\n\n    unwrap(args) {\n      args.realloc(this.offset);\n      var definition = this;\n\n      while (true) {\n        var {\n          args: curriedArgs,\n          inner\n        } = definition;\n\n        if (curriedArgs) {\n          args.positional.prepend(curriedArgs.positional);\n          args.named.merge(curriedArgs.named);\n        }\n\n        if (!isCurriedComponentDefinition(inner)) {\n          return inner;\n        }\n\n        definition = inner;\n      }\n    }\n    /** @internal */\n\n\n    get offset() {\n      var {\n        inner,\n        args\n      } = this;\n      var length = args ? args.positional.length : 0;\n      return isCurriedComponentDefinition(inner) ? length + inner.offset : length;\n    }\n\n  }\n\n  _exports.CurriedComponentDefinition = CurriedComponentDefinition;\n  _a$2 = CURRIED_COMPONENT_DEFINITION_BRAND;\n\n  function curry(spec, args = null) {\n    return new CurriedComponentDefinition(spec, args);\n  }\n\n  function resolveComponent(resolver, name, meta) {\n    var definition = resolver.lookupComponent(name, meta);\n    return definition;\n  }\n\n  class ClassListReference {\n    constructor(list) {\n      this.list = list;\n      this.tag = combineTagged(list);\n      this.list = list;\n    }\n\n    value() {\n      var ret = [];\n      var {\n        list\n      } = this;\n\n      for (var i = 0; i < list.length; i++) {\n        var value = normalizeStringValue(list[i].value());\n        if (value) ret.push(value);\n      }\n\n      return ret.length === 0 ? null : ret.join(' ');\n    }\n\n  }\n\n  class CurryComponentReference {\n    constructor(inner, resolver, meta, args) {\n      this.inner = inner;\n      this.resolver = resolver;\n      this.meta = meta;\n      this.args = args;\n      this.tag = inner.tag;\n      this.lastValue = null;\n      this.lastDefinition = null;\n    }\n\n    value() {\n      var {\n        inner,\n        lastValue\n      } = this;\n      var value = inner.value();\n\n      if (value === lastValue) {\n        return this.lastDefinition;\n      }\n\n      var definition = null;\n\n      if (isCurriedComponentDefinition(value)) {\n        definition = value;\n      } else if (typeof value === 'string' && value) {\n        var {\n          resolver,\n          meta\n        } = this;\n        definition = resolveComponent(resolver, value, meta);\n      }\n\n      definition = this.curry(definition);\n      this.lastValue = value;\n      this.lastDefinition = definition;\n      return definition;\n    }\n\n    get() {\n      return UNDEFINED_REFERENCE;\n    }\n\n    curry(definition) {\n      var {\n        args\n      } = this;\n\n      if (!args && isCurriedComponentDefinition(definition)) {\n        return definition;\n      } else if (!definition) {\n        return null;\n      } else {\n        return new CurriedComponentDefinition(definition, args);\n      }\n    }\n\n  }\n\n  class DynamicTextContent extends UpdatingOpcode {\n    constructor(node, reference, lastValue) {\n      super();\n      this.node = node;\n      this.reference = reference;\n      this.lastValue = lastValue;\n      this.type = 'dynamic-text';\n      this.tag = reference.tag;\n      this.lastRevision = (0, _validator.valueForTag)(this.tag);\n    }\n\n    evaluate() {\n      var {\n        reference,\n        tag\n      } = this;\n\n      if (!(0, _validator.validateTag)(tag, this.lastRevision)) {\n        this.lastRevision = (0, _validator.valueForTag)(tag);\n        this.update(reference.value());\n      }\n    }\n\n    update(value) {\n      var {\n        lastValue\n      } = this;\n      if (value === lastValue) return;\n      var normalized;\n\n      if (isEmpty(value)) {\n        normalized = '';\n      } else if (isString(value)) {\n        normalized = value;\n      } else {\n        normalized = String(value);\n      }\n\n      if (normalized !== lastValue) {\n        var textNode = this.node;\n        textNode.nodeValue = this.lastValue = normalized;\n      }\n    }\n\n  }\n\n  class ContentTypeReference {\n    constructor(inner) {\n      this.inner = inner;\n      this.tag = inner.tag;\n    }\n\n    value() {\n      var value = this.inner.value();\n\n      if (shouldCoerce(value)) {\n        return 1\n        /* String */\n        ;\n      } else if (isComponentDefinition(value)) {\n        return 0\n        /* Component */\n        ;\n      } else if (isSafeString(value)) {\n        return 3\n        /* SafeString */\n        ;\n      } else if (isFragment(value)) {\n        return 4\n        /* Fragment */\n        ;\n      } else if (isNode(value)) {\n        return 5\n        /* Node */\n        ;\n      } else {\n          return 1\n          /* String */\n          ;\n        }\n    }\n\n  }\n\n  APPEND_OPCODES.add(43\n  /* AppendHTML */\n  , vm => {\n    var reference = vm.stack.pop();\n    var rawValue = reference.value();\n    var value = isEmpty(rawValue) ? '' : String(rawValue);\n    vm.elements().appendDynamicHTML(value);\n  });\n  APPEND_OPCODES.add(44\n  /* AppendSafeHTML */\n  , vm => {\n    var reference = vm.stack.pop();\n    var rawValue = reference.value().toHTML();\n    var value = isEmpty(rawValue) ? '' : rawValue;\n    vm.elements().appendDynamicHTML(value);\n  });\n  APPEND_OPCODES.add(47\n  /* AppendText */\n  , vm => {\n    var reference = vm.stack.pop();\n    var rawValue = reference.value();\n    var value = isEmpty(rawValue) ? '' : String(rawValue);\n    var node = vm.elements().appendDynamicText(value);\n\n    if (!(0, _validator.isConst)(reference)) {\n      vm.updateWith(new DynamicTextContent(node, reference, value));\n    }\n  });\n  APPEND_OPCODES.add(45\n  /* AppendDocumentFragment */\n  , vm => {\n    var reference = vm.stack.pop();\n    var value = reference.value();\n    vm.elements().appendDynamicFragment(value);\n  });\n  APPEND_OPCODES.add(46\n  /* AppendNode */\n  , vm => {\n    var reference = vm.stack.pop();\n    var value = reference.value();\n    vm.elements().appendDynamicNode(value);\n  });\n  APPEND_OPCODES.add(39\n  /* ChildScope */\n  , vm => vm.pushChildScope());\n  APPEND_OPCODES.add(40\n  /* PopScope */\n  , vm => vm.popScope());\n  APPEND_OPCODES.add(59\n  /* PushDynamicScope */\n  , vm => vm.pushDynamicScope());\n  APPEND_OPCODES.add(60\n  /* PopDynamicScope */\n  , vm => vm.popDynamicScope());\n  APPEND_OPCODES.add(29\n  /* Constant */\n  , (vm, {\n    op1: other\n  }) => {\n    vm.stack.push(vm[CONSTANTS].getOther(other));\n  });\n  APPEND_OPCODES.add(30\n  /* Primitive */\n  , (vm, {\n    op1: primitive\n  }) => {\n    var stack = vm.stack;\n\n    if ((0, _util.isHandle)(primitive)) {\n      var value;\n\n      if (primitive > -1073741825\n      /* NUMBER_MAX_HANDLE */\n      ) {\n          value = vm[CONSTANTS].getString((0, _util.decodeHandle)(primitive, -1\n          /* STRING_MAX_HANDLE */\n          ));\n        } else {\n        value = vm[CONSTANTS].getNumber((0, _util.decodeHandle)(primitive, -1073741825\n        /* NUMBER_MAX_HANDLE */\n        ));\n      }\n\n      stack.pushJs(value);\n    } else {\n      // is already an encoded immediate\n      stack.pushRaw(primitive);\n    }\n  });\n  APPEND_OPCODES.add(31\n  /* PrimitiveReference */\n  , vm => {\n    var stack = vm.stack;\n    stack.push(PrimitiveReference.create(stack.pop()));\n  });\n  APPEND_OPCODES.add(32\n  /* ReifyU32 */\n  , vm => {\n    var stack = vm.stack;\n    stack.push(stack.peek().value());\n  });\n  APPEND_OPCODES.add(33\n  /* Dup */\n  , (vm, {\n    op1: register,\n    op2: offset\n  }) => {\n    var position = vm.fetchValue(register) - offset;\n    vm.stack.dup(position);\n  });\n  APPEND_OPCODES.add(34\n  /* Pop */\n  , (vm, {\n    op1: count\n  }) => {\n    vm.stack.pop(count);\n  });\n  APPEND_OPCODES.add(35\n  /* Load */\n  , (vm, {\n    op1: register\n  }) => {\n    vm.load(register);\n  });\n  APPEND_OPCODES.add(36\n  /* Fetch */\n  , (vm, {\n    op1: register\n  }) => {\n    vm.fetch(register);\n  });\n  APPEND_OPCODES.add(58\n  /* BindDynamicScope */\n  , (vm, {\n    op1: _names\n  }) => {\n    var names = vm[CONSTANTS].getArray(_names);\n    vm.bindDynamicScope(names);\n  });\n  APPEND_OPCODES.add(69\n  /* Enter */\n  , (vm, {\n    op1: args\n  }) => {\n    vm.enter(args);\n  });\n  APPEND_OPCODES.add(70\n  /* Exit */\n  , vm => {\n    vm.exit();\n  });\n  APPEND_OPCODES.add(63\n  /* PushSymbolTable */\n  , (vm, {\n    op1: _table\n  }) => {\n    var stack = vm.stack;\n    stack.push(vm[CONSTANTS].getSerializable(_table));\n  });\n  APPEND_OPCODES.add(62\n  /* PushBlockScope */\n  , vm => {\n    var stack = vm.stack;\n    stack.push(vm.scope());\n  });\n  APPEND_OPCODES.add(61\n  /* CompileBlock */\n  , vm => {\n    var stack = vm.stack;\n    var block = stack.pop();\n\n    if (block) {\n      stack.push(vm.compile(block));\n    } else {\n      stack.push(null);\n    }\n  }, 'jit');\n  APPEND_OPCODES.add(64\n  /* InvokeYield */\n  , vm => {\n    var {\n      stack\n    } = vm;\n    var handle = stack.pop();\n    var scope = stack.pop();\n    var table = stack.pop();\n    var args = stack.pop();\n\n    if (table === null) {\n      // To balance the pop{Frame,Scope}\n      vm.pushFrame();\n      vm.pushScope(scope); // Could be null but it doesnt matter as it is immediatelly popped.\n\n      return;\n    }\n\n    var invokingScope = scope; // If necessary, create a child scope\n\n    {\n      var locals = table.parameters;\n      var localsCount = locals.length;\n\n      if (localsCount > 0) {\n        invokingScope = invokingScope.child();\n\n        for (var i = 0; i < localsCount; i++) {\n          invokingScope.bindSymbol(locals[i], args.at(i));\n        }\n      }\n    }\n    vm.pushFrame();\n    vm.pushScope(invokingScope);\n    vm.call(handle);\n  });\n  APPEND_OPCODES.add(65\n  /* JumpIf */\n  , (vm, {\n    op1: target\n  }) => {\n    var reference = vm.stack.pop();\n\n    if ((0, _validator.isConst)(reference)) {\n      if (reference.value()) {\n        vm.goto(target);\n      }\n    } else {\n      var cache = new _reference.ReferenceCache(reference);\n\n      if (cache.peek()) {\n        vm.goto(target);\n      }\n\n      vm.updateWith(new Assert(cache));\n    }\n  });\n  APPEND_OPCODES.add(66\n  /* JumpUnless */\n  , (vm, {\n    op1: target\n  }) => {\n    var reference = vm.stack.pop();\n\n    if ((0, _validator.isConst)(reference)) {\n      if (!reference.value()) {\n        vm.goto(target);\n      }\n    } else {\n      var cache = new _reference.ReferenceCache(reference);\n\n      if (!cache.peek()) {\n        vm.goto(target);\n      }\n\n      vm.updateWith(new Assert(cache));\n    }\n  });\n  APPEND_OPCODES.add(67\n  /* JumpEq */\n  , (vm, {\n    op1: target,\n    op2: comparison\n  }) => {\n    var other = vm.stack.peek();\n\n    if (other === comparison) {\n      vm.goto(target);\n    }\n  });\n  APPEND_OPCODES.add(68\n  /* AssertSame */\n  , vm => {\n    var reference = vm.stack.peek();\n\n    if (!(0, _validator.isConst)(reference)) {\n      vm.updateWith(Assert.initialize(new _reference.ReferenceCache(reference)));\n    }\n  });\n  APPEND_OPCODES.add(71\n  /* ToBoolean */\n  , vm => {\n    var {\n      env,\n      stack\n    } = vm;\n    stack.push(env.toConditionalReference(stack.pop()));\n  });\n\n  class Assert extends UpdatingOpcode {\n    constructor(cache) {\n      super();\n      this.type = 'assert';\n      this.tag = cache.tag;\n      this.cache = cache;\n    }\n\n    static initialize(cache) {\n      var assert = new Assert(cache);\n      cache.peek();\n      return assert;\n    }\n\n    evaluate(vm) {\n      var {\n        cache\n      } = this;\n\n      if ((0, _reference.isModified)(cache.revalidate())) {\n        vm.throw();\n      }\n    }\n\n  }\n\n  class JumpIfNotModifiedOpcode extends UpdatingOpcode {\n    constructor(tag, target) {\n      super();\n      this.target = target;\n      this.type = 'jump-if-not-modified';\n      this.tag = tag;\n      this.lastRevision = (0, _validator.valueForTag)(tag);\n    }\n\n    evaluate(vm) {\n      var {\n        tag,\n        target,\n        lastRevision\n      } = this;\n\n      if (!vm.alwaysRevalidate && (0, _validator.validateTag)(tag, lastRevision)) {\n        vm.goto(target);\n      }\n    }\n\n    didModify() {\n      this.lastRevision = (0, _validator.valueForTag)(this.tag);\n    }\n\n  }\n\n  class DidModifyOpcode extends UpdatingOpcode {\n    constructor(target) {\n      super();\n      this.target = target;\n      this.type = 'did-modify';\n      this.tag = _validator.CONSTANT_TAG;\n    }\n\n    evaluate() {\n      this.target.didModify();\n    }\n\n  }\n\n  class LabelOpcode {\n    constructor(label) {\n      this.tag = _validator.CONSTANT_TAG;\n      this.type = 'label';\n      this.label = null;\n      this.prev = null;\n      this.next = null;\n      (0, _util.initializeGuid)(this);\n      this.label = label;\n    }\n\n    evaluate() {}\n\n    inspect() {\n      return `${this.label} [${this._guid}]`;\n    }\n\n  }\n\n  APPEND_OPCODES.add(41\n  /* Text */\n  , (vm, {\n    op1: text\n  }) => {\n    vm.elements().appendText(vm[CONSTANTS].getString(text));\n  });\n  APPEND_OPCODES.add(42\n  /* Comment */\n  , (vm, {\n    op1: text\n  }) => {\n    vm.elements().appendComment(vm[CONSTANTS].getString(text));\n  });\n  APPEND_OPCODES.add(48\n  /* OpenElement */\n  , (vm, {\n    op1: tag\n  }) => {\n    vm.elements().openElement(vm[CONSTANTS].getString(tag));\n  });\n  APPEND_OPCODES.add(49\n  /* OpenDynamicElement */\n  , vm => {\n    var tagName = vm.stack.pop().value();\n    vm.elements().openElement(tagName);\n  });\n  APPEND_OPCODES.add(50\n  /* PushRemoteElement */\n  , vm => {\n    var elementRef = vm.stack.pop();\n    var insertBeforeRef = vm.stack.pop();\n    var guidRef = vm.stack.pop();\n    var element;\n    var insertBefore;\n    var guid = guidRef.value();\n\n    if ((0, _validator.isConst)(elementRef)) {\n      element = elementRef.value();\n    } else {\n      var cache = new _reference.ReferenceCache(elementRef);\n      element = cache.peek();\n      vm.updateWith(new Assert(cache));\n    }\n\n    if (insertBeforeRef.value() !== undefined) {\n      if ((0, _validator.isConst)(insertBeforeRef)) {\n        insertBefore = insertBeforeRef.value();\n      } else {\n        var _cache = new _reference.ReferenceCache(insertBeforeRef);\n\n        insertBefore = _cache.peek();\n        vm.updateWith(new Assert(_cache));\n      }\n    }\n\n    var block = vm.elements().pushRemoteElement(element, guid, insertBefore);\n    if (block) vm.associateDestroyable(block);\n  });\n  APPEND_OPCODES.add(56\n  /* PopRemoteElement */\n  , vm => {\n    vm.elements().popRemoteElement();\n  });\n  APPEND_OPCODES.add(54\n  /* FlushElement */\n  , vm => {\n    var operations = vm.fetchValue(_vm2.$t0);\n    var modifiers = null;\n\n    if (operations) {\n      modifiers = operations.flush(vm);\n      vm.loadValue(_vm2.$t0, null);\n    }\n\n    vm.elements().flushElement(modifiers);\n  });\n  APPEND_OPCODES.add(55\n  /* CloseElement */\n  , vm => {\n    var modifiers = vm.elements().closeElement();\n\n    if (modifiers) {\n      modifiers.forEach(([manager, modifier]) => {\n        vm.env.scheduleInstallModifier(modifier, manager);\n        var d = manager.getDestructor(modifier);\n\n        if (d) {\n          vm.associateDestroyable(d);\n        }\n      });\n    }\n  });\n  APPEND_OPCODES.add(57\n  /* Modifier */\n  , (vm, {\n    op1: handle\n  }) => {\n    var {\n      manager,\n      state\n    } = vm.runtime.resolver.resolve(handle);\n    var stack = vm.stack;\n    var args = stack.pop();\n    var {\n      constructing,\n      updateOperations\n    } = vm.elements();\n    var dynamicScope = vm.dynamicScope();\n    var modifier = manager.create(constructing, state, args, dynamicScope, updateOperations);\n    var operations = vm.fetchValue(_vm2.$t0);\n    operations.addModifier(manager, modifier);\n    var tag = manager.getTag(modifier);\n\n    if (!(0, _validator.isConstTag)(tag)) {\n      vm.updateWith(new UpdateModifierOpcode(tag, manager, modifier));\n    }\n  });\n\n  class UpdateModifierOpcode extends UpdatingOpcode {\n    constructor(tag, manager, modifier) {\n      super();\n      this.tag = tag;\n      this.manager = manager;\n      this.modifier = modifier;\n      this.type = 'update-modifier';\n      this.lastUpdated = (0, _validator.valueForTag)(tag);\n    }\n\n    evaluate(vm) {\n      var {\n        manager,\n        modifier,\n        tag,\n        lastUpdated\n      } = this;\n\n      if (!(0, _validator.validateTag)(tag, lastUpdated)) {\n        vm.env.scheduleUpdateModifier(modifier, manager);\n        this.lastUpdated = (0, _validator.valueForTag)(tag);\n      }\n    }\n\n  }\n\n  APPEND_OPCODES.add(51\n  /* StaticAttr */\n  , (vm, {\n    op1: _name,\n    op2: _value,\n    op3: _namespace\n  }) => {\n    var name = vm[CONSTANTS].getString(_name);\n    var value = vm[CONSTANTS].getString(_value);\n    var namespace = _namespace ? vm[CONSTANTS].getString(_namespace) : null;\n    vm.elements().setStaticAttribute(name, value, namespace);\n  });\n  APPEND_OPCODES.add(52\n  /* DynamicAttr */\n  , (vm, {\n    op1: _name,\n    op2: trusting,\n    op3: _namespace\n  }) => {\n    var name = vm[CONSTANTS].getString(_name);\n    var reference = vm.stack.pop();\n    var value = reference.value();\n    var namespace = _namespace ? vm[CONSTANTS].getString(_namespace) : null;\n    var attribute = vm.elements().setDynamicAttribute(name, value, !!trusting, namespace);\n\n    if (!(0, _validator.isConst)(reference)) {\n      vm.updateWith(new UpdateDynamicAttributeOpcode(reference, attribute));\n    }\n  });\n\n  class UpdateDynamicAttributeOpcode extends UpdatingOpcode {\n    constructor(reference, attribute) {\n      super();\n      this.reference = reference;\n      this.attribute = attribute;\n      this.type = 'patch-element';\n      var {\n        tag\n      } = reference;\n      this.tag = tag;\n      this.lastRevision = (0, _validator.valueForTag)(tag);\n    }\n\n    evaluate(vm) {\n      var {\n        attribute,\n        reference,\n        tag\n      } = this;\n\n      if (!(0, _validator.validateTag)(tag, this.lastRevision)) {\n        attribute.update(reference.value(), vm.env);\n        this.lastRevision = (0, _validator.valueForTag)(tag);\n      }\n    }\n\n  }\n  /**\n   * The VM creates a new ComponentInstance data structure for every component\n   * invocation it encounters.\n   *\n   * Similar to how a ComponentDefinition contains state about all components of a\n   * particular type, a ComponentInstance contains state specific to a particular\n   * instance of a component type. It also contains a pointer back to its\n   * component type's ComponentDefinition.\n   */\n\n\n  var COMPONENT_INSTANCE = (0, _util.symbol)('COMPONENT_INSTANCE');\n  APPEND_OPCODES.add(77\n  /* IsComponent */\n  , vm => {\n    var stack = vm.stack;\n    var ref = stack.pop();\n    stack.push(new ConditionalReference(ref, isCurriedComponentDefinition));\n  });\n  APPEND_OPCODES.add(78\n  /* ContentType */\n  , vm => {\n    var stack = vm.stack;\n    var ref = stack.peek();\n    stack.push(new ContentTypeReference(ref));\n  });\n  APPEND_OPCODES.add(79\n  /* CurryComponent */\n  , (vm, {\n    op1: _meta\n  }) => {\n    var stack = vm.stack;\n    var definition = stack.pop();\n    var capturedArgs = stack.pop();\n    var meta = vm[CONSTANTS].getTemplateMeta(_meta);\n    var resolver = vm.runtime.resolver;\n    vm.loadValue(_vm2.$v0, new CurryComponentReference(definition, resolver, meta, capturedArgs)); // expectStackChange(vm.stack, -args.length - 1, 'CurryComponent');\n  });\n  APPEND_OPCODES.add(80\n  /* PushComponentDefinition */\n  , (vm, {\n    op1: handle\n  }) => {\n    var definition = vm.runtime.resolver.resolve(handle);\n    var {\n      manager\n    } = definition;\n    var capabilities = capabilityFlagsFrom(manager.getCapabilities(definition.state));\n    var instance = {\n      [COMPONENT_INSTANCE]: true,\n      definition,\n      manager,\n      capabilities,\n      state: null,\n      handle: null,\n      table: null,\n      lookup: null\n    };\n    vm.stack.push(instance);\n  });\n  APPEND_OPCODES.add(83\n  /* ResolveDynamicComponent */\n  , (vm, {\n    op1: _meta\n  }) => {\n    var stack = vm.stack;\n    var component = stack.pop().value();\n    var meta = vm[CONSTANTS].getTemplateMeta(_meta);\n    vm.loadValue(_vm2.$t1, null); // Clear the temp register\n\n    var definition;\n\n    if (typeof component === 'string') {\n      var resolvedDefinition = resolveComponent(vm.runtime.resolver, component, meta);\n      definition = resolvedDefinition;\n    } else if (isCurriedComponentDefinition(component)) {\n      definition = component;\n    } else {\n      throw (0, _util.unreachable)();\n    }\n\n    stack.push(definition);\n  });\n  APPEND_OPCODES.add(81\n  /* PushDynamicComponentInstance */\n  , vm => {\n    var {\n      stack\n    } = vm;\n    var definition = stack.pop();\n    var capabilities, manager;\n\n    if (isCurriedComponentDefinition(definition)) {\n      manager = capabilities = null;\n    } else {\n      manager = definition.manager;\n      capabilities = capabilityFlagsFrom(manager.getCapabilities(definition.state));\n    }\n\n    stack.push({\n      definition,\n      capabilities,\n      manager,\n      state: null,\n      handle: null,\n      table: null\n    });\n  });\n  APPEND_OPCODES.add(82\n  /* PushCurriedComponent */\n  , vm => {\n    var stack = vm.stack;\n    var component = stack.pop().value();\n    var definition;\n\n    if (isCurriedComponentDefinition(component)) {\n      definition = component;\n    } else {\n      throw (0, _util.unreachable)();\n    }\n\n    stack.push(definition);\n  });\n  APPEND_OPCODES.add(84\n  /* PushArgs */\n  , (vm, {\n    op1: _names,\n    op2: _blockNames,\n    op3: flags\n  }) => {\n    var stack = vm.stack;\n    var names = vm[CONSTANTS].getStringArray(_names);\n    var positionalCount = flags >> 4;\n    var atNames = flags & 0b1000;\n    var blockNames = flags & 0b0111 ? vm[CONSTANTS].getStringArray(_blockNames) : _util.EMPTY_ARRAY;\n    vm[ARGS].setup(stack, names, blockNames, positionalCount, !!atNames);\n    stack.push(vm[ARGS]);\n  });\n  APPEND_OPCODES.add(85\n  /* PushEmptyArgs */\n  , vm => {\n    var {\n      stack\n    } = vm;\n    stack.push(vm[ARGS].empty(stack));\n  });\n  APPEND_OPCODES.add(88\n  /* CaptureArgs */\n  , vm => {\n    var stack = vm.stack;\n    var args = stack.pop();\n    var capturedArgs = args.capture();\n    stack.push(capturedArgs);\n  });\n  APPEND_OPCODES.add(87\n  /* PrepareArgs */\n  , (vm, {\n    op1: _state\n  }) => {\n    var stack = vm.stack;\n    var instance = vm.fetchValue(_state);\n    var args = stack.pop();\n    var {\n      definition\n    } = instance;\n\n    if (isCurriedComponentDefinition(definition)) {\n      definition = resolveCurriedComponentDefinition(instance, definition, args);\n    }\n\n    var {\n      manager,\n      state\n    } = definition;\n    var capabilities = instance.capabilities;\n\n    if (!managerHasCapability(manager, capabilities, 4\n    /* PrepareArgs */\n    )) {\n      stack.push(args);\n      return;\n    }\n\n    var blocks = args.blocks.values;\n    var blockNames = args.blocks.names;\n    var preparedArgs = manager.prepareArgs(state, args);\n\n    if (preparedArgs) {\n      args.clear();\n\n      for (var i = 0; i < blocks.length; i++) {\n        stack.push(blocks[i]);\n      }\n\n      var {\n        positional,\n        named\n      } = preparedArgs;\n      var positionalCount = positional.length;\n\n      for (var _i5 = 0; _i5 < positionalCount; _i5++) {\n        stack.push(positional[_i5]);\n      }\n\n      var names = Object.keys(named);\n\n      for (var _i6 = 0; _i6 < names.length; _i6++) {\n        stack.push(named[names[_i6]]);\n      }\n\n      args.setup(stack, names, blockNames, positionalCount, false);\n    }\n\n    stack.push(args);\n  });\n\n  function resolveCurriedComponentDefinition(instance, definition, args) {\n    var unwrappedDefinition = instance.definition = definition.unwrap(args);\n    var {\n      manager,\n      state\n    } = unwrappedDefinition;\n    instance.manager = manager;\n    instance.capabilities = capabilityFlagsFrom(manager.getCapabilities(state));\n    return unwrappedDefinition;\n  }\n\n  APPEND_OPCODES.add(89\n  /* CreateComponent */\n  , (vm, {\n    op1: flags,\n    op2: _state\n  }) => {\n    var instance = vm.fetchValue(_state);\n    var {\n      definition,\n      manager\n    } = instance;\n    var capabilities = instance.capabilities = capabilityFlagsFrom(manager.getCapabilities(definition.state));\n\n    if (!managerHasCapability(manager, capabilities, 512\n    /* CreateInstance */\n    )) {\n      throw new Error(`BUG`);\n    }\n\n    var dynamicScope = null;\n\n    if (managerHasCapability(manager, capabilities, 64\n    /* DynamicScope */\n    )) {\n      dynamicScope = vm.dynamicScope();\n    }\n\n    var hasDefaultBlock = flags & 1;\n    var args = null;\n\n    if (managerHasCapability(manager, capabilities, 8\n    /* CreateArgs */\n    )) {\n      args = vm.stack.peek();\n    }\n\n    var self = null;\n\n    if (managerHasCapability(manager, capabilities, 128\n    /* CreateCaller */\n    )) {\n      self = vm.getSelf();\n    }\n\n    var state = manager.create(vm.env, definition.state, args, dynamicScope, self, !!hasDefaultBlock); // We want to reuse the `state` POJO here, because we know that the opcodes\n    // only transition at exactly one place.\n\n    instance.state = state;\n    var tag = manager.getTag(state);\n\n    if (managerHasCapability(manager, capabilities, 256\n    /* UpdateHook */\n    ) && !(0, _validator.isConstTag)(tag)) {\n      vm.updateWith(new UpdateComponentOpcode(tag, state, manager, dynamicScope));\n    }\n  });\n  APPEND_OPCODES.add(90\n  /* RegisterComponentDestructor */\n  , (vm, {\n    op1: _state\n  }) => {\n    var {\n      manager,\n      state,\n      capabilities\n    } = vm.fetchValue(_state);\n    var d = manager.getDestructor(state);\n\n    if (true\n    /* DEBUG */\n    && !hasCapability(capabilities, 2048\n    /* WillDestroy */\n    ) && d !== null && typeof 'willDestroy' in d) {\n      throw new Error('BUG: Destructor has willDestroy, but the willDestroy capability was not enabled for this component. Pre-destruction hooks must be explicitly opted into');\n    }\n\n    if (d) vm.associateDestroyable(d);\n  });\n  APPEND_OPCODES.add(100\n  /* BeginComponentTransaction */\n  , vm => {\n    vm.beginCacheGroup();\n    vm.elements().pushSimpleBlock();\n  });\n  APPEND_OPCODES.add(91\n  /* PutComponentOperations */\n  , vm => {\n    vm.loadValue(_vm2.$t0, new ComponentElementOperations());\n  });\n  APPEND_OPCODES.add(53\n  /* ComponentAttr */\n  , (vm, {\n    op1: _name,\n    op2: trusting,\n    op3: _namespace\n  }) => {\n    var name = vm[CONSTANTS].getString(_name);\n    var reference = vm.stack.pop();\n    var namespace = _namespace ? vm[CONSTANTS].getString(_namespace) : null;\n    vm.fetchValue(_vm2.$t0).setAttribute(name, reference, !!trusting, namespace);\n  });\n  APPEND_OPCODES.add(108\n  /* StaticComponentAttr */\n  , (vm, {\n    op1: _name,\n    op2: _value,\n    op3: _namespace\n  }) => {\n    var name = vm[CONSTANTS].getString(_name);\n    var value = vm[CONSTANTS].getString(_value);\n    var namespace = _namespace ? vm[CONSTANTS].getString(_namespace) : null;\n    vm.fetchValue(_vm2.$t0).setStaticAttribute(name, value, namespace);\n  });\n\n  class ComponentElementOperations {\n    constructor() {\n      this.attributes = (0, _util.dict)();\n      this.classes = [];\n      this.modifiers = [];\n    }\n\n    setAttribute(name, value, trusting, namespace) {\n      var deferred = {\n        value,\n        namespace,\n        trusting\n      };\n\n      if (name === 'class') {\n        this.classes.push(value);\n      }\n\n      this.attributes[name] = deferred;\n    }\n\n    setStaticAttribute(name, value, namespace) {\n      var deferred = {\n        value,\n        namespace\n      };\n\n      if (name === 'class') {\n        this.classes.push(value);\n      }\n\n      this.attributes[name] = deferred;\n    }\n\n    addModifier(manager, state) {\n      this.modifiers.push([manager, state]);\n    }\n\n    flush(vm) {\n      var type;\n      var attributes = this.attributes;\n\n      for (var _name3 in this.attributes) {\n        if (_name3 === 'type') {\n          type = attributes[_name3];\n          continue;\n        }\n\n        var attr = this.attributes[_name3];\n\n        if (_name3 === 'class') {\n          setDeferredAttr(vm, 'class', mergeClasses(this.classes), attr.namespace, attr.trusting);\n        } else {\n          setDeferredAttr(vm, _name3, attr.value, attr.namespace, attr.trusting);\n        }\n      }\n\n      if (type !== undefined) {\n        setDeferredAttr(vm, 'type', type.value, type.namespace, type.trusting);\n      }\n\n      return this.modifiers;\n    }\n\n  }\n\n  function mergeClasses(classes) {\n    if (classes.length === 0) {\n      return '';\n    }\n\n    if (classes.length === 1) {\n      return classes[0];\n    }\n\n    if (allStringClasses(classes)) {\n      return classes.join(' ');\n    }\n\n    return makeClassList(classes);\n  }\n\n  function makeClassList(classes) {\n    for (var i = 0; i < classes.length; i++) {\n      var value = classes[i];\n\n      if (typeof value === 'string') {\n        classes[i] = PrimitiveReference.create(value);\n      }\n    }\n\n    return new ClassListReference(classes);\n  }\n\n  function allStringClasses(classes) {\n    for (var i = 0; i < classes.length; i++) {\n      if (typeof classes[i] !== 'string') {\n        return false;\n      }\n    }\n\n    return true;\n  }\n\n  function setDeferredAttr(vm, name, value, namespace, trusting = false) {\n    if (typeof value === 'string') {\n      vm.elements().setStaticAttribute(name, value, namespace);\n    } else {\n      var attribute = vm.elements().setDynamicAttribute(name, value.value(), trusting, namespace);\n\n      if (!(0, _validator.isConst)(value)) {\n        vm.updateWith(new UpdateDynamicAttributeOpcode(value, attribute));\n      }\n    }\n  }\n\n  APPEND_OPCODES.add(102\n  /* DidCreateElement */\n  , (vm, {\n    op1: _state\n  }) => {\n    var {\n      definition,\n      state\n    } = vm.fetchValue(_state);\n    var {\n      manager\n    } = definition;\n    var operations = vm.fetchValue(_vm2.$t0);\n    manager.didCreateElement(state, vm.elements().constructing, operations);\n  });\n  APPEND_OPCODES.add(92\n  /* GetComponentSelf */\n  , (vm, {\n    op1: _state\n  }) => {\n    var {\n      definition,\n      state\n    } = vm.fetchValue(_state);\n    var {\n      manager\n    } = definition;\n    vm.stack.push(manager.getSelf(state));\n  });\n  APPEND_OPCODES.add(93\n  /* GetComponentTagName */\n  , (vm, {\n    op1: _state\n  }) => {\n    var {\n      definition,\n      state\n    } = vm.fetchValue(_state);\n    var {\n      manager\n    } = definition;\n    vm.stack.push(manager.getTagName(state));\n  }); // Dynamic Invocation Only\n\n  APPEND_OPCODES.add(95\n  /* GetJitComponentLayout */\n  , (vm, {\n    op1: _state\n  }) => {\n    var instance = vm.fetchValue(_state);\n    var manager = instance.manager;\n    var {\n      definition\n    } = instance;\n    var {\n      stack\n    } = vm;\n    var {\n      capabilities\n    } = instance; // let invoke: { handle: number; symbolTable: ProgramSymbolTable };\n\n    var layout;\n\n    if (hasStaticLayoutCapability(capabilities, manager)) {\n      layout = manager.getJitStaticLayout(definition.state, vm.runtime.resolver);\n    } else if (hasDynamicLayoutCapability(capabilities, manager)) {\n      var template = (0, _util.unwrapTemplate)(manager.getJitDynamicLayout(instance.state, vm.runtime.resolver));\n\n      if (hasCapability(capabilities, 1024\n      /* Wrapped */\n      )) {\n        layout = template.asWrappedLayout();\n      } else {\n        layout = template.asLayout();\n      }\n    } else {\n      throw (0, _util.unreachable)();\n    }\n\n    var handle = layout.compile(vm.context);\n    stack.push(layout.symbolTable);\n    stack.push(handle);\n  }, 'jit'); // Dynamic Invocation Only\n\n  APPEND_OPCODES.add(94\n  /* GetAotComponentLayout */\n  , (vm, {\n    op1: _state\n  }) => {\n    var instance = vm.fetchValue(_state);\n    var {\n      manager,\n      definition\n    } = instance;\n    var {\n      stack\n    } = vm;\n    var {\n      state: instanceState,\n      capabilities\n    } = instance;\n    var {\n      state: definitionState\n    } = definition;\n    var invoke;\n\n    if (hasStaticLayoutCapability(capabilities, manager)) {\n      invoke = manager.getAotStaticLayout(definitionState, vm.runtime.resolver);\n    } else if (hasDynamicLayoutCapability(capabilities, manager)) {\n      invoke = manager.getAotDynamicLayout(instanceState, vm.runtime.resolver);\n    } else {\n      throw (0, _util.unreachable)();\n    }\n\n    stack.push(invoke.symbolTable);\n    stack.push(invoke.handle);\n  }); // These types are absurd here\n\n  function hasStaticLayoutCapability(capabilities, _manager) {\n    return managerHasCapability(_manager, capabilities, 1\n    /* DynamicLayout */\n    ) === false;\n  }\n\n  function hasDynamicLayoutCapability(capabilities, _manager) {\n    return managerHasCapability(_manager, capabilities, 1\n    /* DynamicLayout */\n    ) === true;\n  }\n\n  APPEND_OPCODES.add(76\n  /* Main */\n  , (vm, {\n    op1: register\n  }) => {\n    var definition = vm.stack.pop();\n    var invocation = vm.stack.pop();\n    var {\n      manager\n    } = definition;\n    var capabilities = capabilityFlagsFrom(manager.getCapabilities(definition.state));\n    var state = {\n      [COMPONENT_INSTANCE]: true,\n      definition,\n      manager,\n      capabilities,\n      state: null,\n      handle: invocation.handle,\n      table: invocation.symbolTable,\n      lookup: null\n    };\n    vm.loadValue(register, state);\n  });\n  APPEND_OPCODES.add(98\n  /* PopulateLayout */\n  , (vm, {\n    op1: _state\n  }) => {\n    var {\n      stack\n    } = vm;\n    var handle = stack.pop();\n    var table = stack.pop();\n    var state = vm.fetchValue(_state);\n    state.handle = handle;\n    state.table = table;\n  });\n  APPEND_OPCODES.add(38\n  /* VirtualRootScope */\n  , (vm, {\n    op1: _state\n  }) => {\n    var {\n      symbols\n    } = vm.fetchValue(_state).table;\n    vm.pushRootScope(symbols.length + 1);\n  });\n  APPEND_OPCODES.add(97\n  /* SetupForEval */\n  , (vm, {\n    op1: _state\n  }) => {\n    var state = vm.fetchValue(_state);\n\n    if (state.table.hasEval) {\n      var lookup = state.lookup = (0, _util.dict)();\n      vm.scope().bindEvalScope(lookup);\n    }\n  });\n  APPEND_OPCODES.add(17\n  /* SetNamedVariables */\n  , (vm, {\n    op1: _state\n  }) => {\n    var state = vm.fetchValue(_state);\n    var scope = vm.scope();\n    var args = vm.stack.peek();\n    var callerNames = args.named.atNames;\n\n    for (var i = callerNames.length - 1; i >= 0; i--) {\n      var atName = callerNames[i];\n      var symbol$$1 = state.table.symbols.indexOf(callerNames[i]);\n      var value = args.named.get(atName, true);\n      if (symbol$$1 !== -1) scope.bindSymbol(symbol$$1 + 1, value);\n      if (state.lookup) state.lookup[atName] = value;\n    }\n  });\n\n  function bindBlock(symbolName, blockName, state, blocks, vm) {\n    var symbol$$1 = state.table.symbols.indexOf(symbolName);\n    var block = blocks.get(blockName);\n    if (symbol$$1 !== -1) vm.scope().bindBlock(symbol$$1 + 1, block);\n    if (state.lookup) state.lookup[symbolName] = block;\n  }\n\n  APPEND_OPCODES.add(18\n  /* SetBlocks */\n  , (vm, {\n    op1: _state\n  }) => {\n    var state = vm.fetchValue(_state);\n    var {\n      blocks\n    } = vm.stack.peek();\n\n    for (var i = 0; i < blocks.names.length; i++) {\n      bindBlock(blocks.symbolNames[i], blocks.names[i], state, blocks, vm);\n    }\n  }); // Dynamic Invocation Only\n\n  APPEND_OPCODES.add(99\n  /* InvokeComponentLayout */\n  , (vm, {\n    op1: _state\n  }) => {\n    var state = vm.fetchValue(_state);\n    vm.call(state.handle);\n  });\n  APPEND_OPCODES.add(103\n  /* DidRenderLayout */\n  , (vm, {\n    op1: _state\n  }) => {\n    var {\n      manager,\n      state,\n      capabilities\n    } = vm.fetchValue(_state);\n    var bounds = vm.elements().popBlock();\n\n    if (!managerHasCapability(manager, capabilities, 512\n    /* CreateInstance */\n    )) {\n      throw new Error(`BUG`);\n    }\n\n    var mgr = manager;\n    mgr.didRenderLayout(state, bounds);\n    vm.env.didCreate(state, manager);\n    vm.updateWith(new DidUpdateLayoutOpcode(manager, state, bounds));\n  });\n  APPEND_OPCODES.add(101\n  /* CommitComponentTransaction */\n  , vm => {\n    vm.commitCacheGroup();\n  });\n\n  class UpdateComponentOpcode extends UpdatingOpcode {\n    constructor(tag, component, manager, dynamicScope) {\n      super();\n      this.tag = tag;\n      this.component = component;\n      this.manager = manager;\n      this.dynamicScope = dynamicScope;\n      this.type = 'update-component';\n    }\n\n    evaluate(_vm) {\n      var {\n        component,\n        manager,\n        dynamicScope\n      } = this;\n      manager.update(component, dynamicScope);\n    }\n\n  }\n\n  class DidUpdateLayoutOpcode extends UpdatingOpcode {\n    constructor(manager, component, bounds) {\n      super();\n      this.manager = manager;\n      this.component = component;\n      this.bounds = bounds;\n      this.type = 'did-update-layout';\n      this.tag = _validator.CONSTANT_TAG;\n    }\n\n    evaluate(vm) {\n      var {\n        manager,\n        component,\n        bounds\n      } = this;\n      manager.didUpdateLayout(component, bounds);\n      vm.env.didUpdate(component, manager);\n    }\n\n  }\n\n  function debugCallback(context, get) {\n    console.info('Use `context`, and `get(<path>)` to debug this template.'); // for example...\n    // eslint-disable-next-line no-unused-expressions\n\n    context === get('this'); // eslint-disable-next-line no-debugger\n\n    debugger;\n  }\n\n  var callback = debugCallback; // For testing purposes\n\n  function setDebuggerCallback(cb) {\n    callback = cb;\n  }\n\n  function resetDebuggerCallback() {\n    callback = debugCallback;\n  }\n\n  class ScopeInspector {\n    constructor(scope, symbols, evalInfo) {\n      this.scope = scope;\n      this.locals = (0, _util.dict)();\n\n      for (var i = 0; i < evalInfo.length; i++) {\n        var slot = evalInfo[i];\n        var _name4 = symbols[slot - 1];\n        var ref = scope.getSymbol(slot);\n        this.locals[_name4] = ref;\n      }\n    }\n\n    get(path) {\n      var {\n        scope,\n        locals\n      } = this;\n      var parts = path.split('.');\n      var [head, ...tail] = path.split('.');\n      var evalScope = scope.getEvalScope();\n      var ref;\n\n      if (head === 'this') {\n        ref = scope.getSelf();\n      } else if (locals[head]) {\n        ref = locals[head];\n      } else if (head.indexOf('@') === 0 && evalScope[head]) {\n        ref = evalScope[head];\n      } else {\n        ref = this.scope.getSelf();\n        tail = parts;\n      }\n\n      return tail.reduce((r, part) => r.get(part), ref);\n    }\n\n  }\n\n  APPEND_OPCODES.add(106\n  /* Debugger */\n  , (vm, {\n    op1: _symbols,\n    op2: _evalInfo\n  }) => {\n    var symbols = vm[CONSTANTS].getStringArray(_symbols);\n    var evalInfo = vm[CONSTANTS].getArray(_evalInfo);\n    var inspector = new ScopeInspector(vm.scope(), symbols, evalInfo);\n    callback(vm.getSelf().value(), path => inspector.get(path).value());\n  });\n  APPEND_OPCODES.add(104\n  /* InvokePartial */\n  , (vm, {\n    op1: _meta,\n    op2: _symbols,\n    op3: _evalInfo\n  }) => {\n    var {\n      [CONSTANTS]: constants,\n      stack\n    } = vm;\n    var name = stack.pop().value();\n    var meta = constants.getTemplateMeta(_meta);\n    var outerSymbols = constants.getStringArray(_symbols);\n    var evalInfo = constants.getArray(_evalInfo);\n    var handle = vm.runtime.resolver.lookupPartial(name, meta);\n    var definition = vm.runtime.resolver.resolve(handle);\n    var {\n      symbolTable,\n      handle: vmHandle\n    } = definition.getPartial(vm.context);\n    {\n      var partialSymbols = symbolTable.symbols;\n      var outerScope = vm.scope();\n      var partialScope = vm.pushRootScope(partialSymbols.length);\n      var evalScope = outerScope.getEvalScope();\n      partialScope.bindEvalScope(evalScope);\n      partialScope.bindSelf(outerScope.getSelf());\n      var locals = Object.create(outerScope.getPartialMap());\n\n      for (var i = 0; i < evalInfo.length; i++) {\n        var slot = evalInfo[i];\n        var _name5 = outerSymbols[slot - 1];\n        var ref = outerScope.getSymbol(slot);\n        locals[_name5] = ref;\n      }\n\n      if (evalScope) {\n        for (var _i7 = 0; _i7 < partialSymbols.length; _i7++) {\n          var _name6 = partialSymbols[_i7];\n          var symbol$$1 = _i7 + 1;\n          var value = evalScope[_name6];\n          if (value !== undefined) partialScope.bind(symbol$$1, value);\n        }\n      }\n\n      partialScope.bindPartialMap(locals);\n      vm.pushFrame(); // sp += 2\n\n      vm.call((0, _util.unwrapHandle)(vmHandle));\n    }\n  }, 'jit');\n\n  class IterablePresenceReference {\n    constructor(artifacts) {\n      this.tag = artifacts.tag;\n      this.artifacts = artifacts;\n    }\n\n    value() {\n      return !this.artifacts.isEmpty();\n    }\n\n  }\n\n  APPEND_OPCODES.add(74\n  /* PutIterator */\n  , vm => {\n    var stack = vm.stack;\n    var listRef = stack.pop();\n    var key = stack.pop();\n    var iterable = vm.env.iterableFor(listRef, key.value());\n    var iterator = new _reference.ReferenceIterator(iterable);\n    stack.push(iterator);\n    stack.push(new IterablePresenceReference(iterator.artifacts));\n  });\n  APPEND_OPCODES.add(72\n  /* EnterList */\n  , (vm, {\n    op1: relativeStart\n  }) => {\n    vm.enterList(relativeStart);\n  });\n  APPEND_OPCODES.add(73\n  /* ExitList */\n  , vm => {\n    vm.exitList();\n  });\n  APPEND_OPCODES.add(75\n  /* Iterate */\n  , (vm, {\n    op1: breaks\n  }) => {\n    var stack = vm.stack;\n    var item = stack.peek().next();\n\n    if (item) {\n      var tryOpcode = vm.enterItem(item.memo, item.value);\n      vm.registerItem(item.key, tryOpcode);\n    } else {\n      vm.goto(breaks);\n    }\n  });\n  /** @internal */\n\n  var DEFAULT_CAPABILITIES = {\n    dynamicLayout: true,\n    dynamicTag: true,\n    prepareArgs: true,\n    createArgs: true,\n    attributeHook: false,\n    elementHook: false,\n    dynamicScope: true,\n    createCaller: false,\n    updateHook: true,\n    createInstance: true,\n    wrapped: false,\n    willDestroy: false\n  };\n  _exports.DEFAULT_CAPABILITIES = DEFAULT_CAPABILITIES;\n  var MINIMAL_CAPABILITIES = {\n    dynamicLayout: false,\n    dynamicTag: false,\n    prepareArgs: false,\n    createArgs: false,\n    attributeHook: false,\n    elementHook: false,\n    dynamicScope: false,\n    createCaller: false,\n    updateHook: false,\n    createInstance: false,\n    wrapped: false,\n    willDestroy: false\n  };\n  _exports.MINIMAL_CAPABILITIES = MINIMAL_CAPABILITIES;\n\n  class SimpleComponentManager {\n    getCapabilities(_state) {\n      return MINIMAL_CAPABILITIES;\n    }\n\n    prepareArgs(_state, _args) {\n      throw new Error(`Unimplemented prepareArgs in SimpleComponentManager`);\n    }\n\n    create(_env, _state, _args, _dynamicScope, _caller, _hasDefaultBlock) {\n      throw new Error(`Unimplemented create in SimpleComponentManager`);\n    }\n\n    getSelf(_state) {\n      return UNDEFINED_REFERENCE;\n    }\n\n    getTag(_state) {\n      throw new Error(`Unimplemented getTag in SimpleComponentManager`);\n    }\n\n    didRenderLayout(_state, _bounds) {\n      throw new Error(`Unimplemented didRenderLayout in SimpleComponentManager`);\n    }\n\n    didCreate(_state) {\n      throw new Error(`Unimplemented didCreate in SimpleComponentManager`);\n    }\n\n    update(_state, _dynamicScope) {\n      throw new Error(`Unimplemented update in SimpleComponentManager`);\n    }\n\n    didUpdateLayout(_state, _bounds) {\n      throw new Error(`Unimplemented didUpdateLayout in SimpleComponentManager`);\n    }\n\n    didUpdate(_state) {\n      throw new Error(`Unimplemented didUpdate in SimpleComponentManager`);\n    }\n\n    getDestructor(_state) {\n      return null;\n    }\n\n  }\n\n  _exports.SimpleComponentManager = SimpleComponentManager;\n  var TEMPLATE_ONLY_COMPONENT = {\n    state: null,\n    manager: new SimpleComponentManager()\n  };\n  _exports.TEMPLATE_ONLY_COMPONENT = TEMPLATE_ONLY_COMPONENT;\n\n  class DefaultDynamicScope {\n    constructor(bucket) {\n      if (bucket) {\n        this.bucket = (0, _util.assign)({}, bucket);\n      } else {\n        this.bucket = {};\n      }\n    }\n\n    get(key) {\n      return this.bucket[key];\n    }\n\n    set(key, reference) {\n      return this.bucket[key] = reference;\n    }\n\n    child() {\n      return new DefaultDynamicScope(this.bucket);\n    }\n\n  }\n\n  _exports.DefaultDynamicScope = DefaultDynamicScope;\n\n  class DynamicVarReference {\n    constructor(scope, nameRef) {\n      this.scope = scope;\n      this.nameRef = nameRef;\n      var varTag = this.varTag = (0, _validator.createUpdatableTag)();\n      this.tag = (0, _validator.combine)([nameRef.tag, varTag]);\n    }\n\n    value() {\n      return this.getVar().value();\n    }\n\n    get(key) {\n      return this.getVar().get(key);\n    }\n\n    getVar() {\n      var name = String(this.nameRef.value());\n      var ref = this.scope.get(name);\n      (0, _validator.updateTag)(this.varTag, ref.tag);\n      return ref;\n    }\n\n  }\n\n  function getDynamicVar(args, vm) {\n    var scope = vm.dynamicScope();\n    var nameRef = args.positional.at(0);\n    return new DynamicVarReference(scope, nameRef);\n  }\n  /*\n    The calling convention is:\n  \n    * 0-N block arguments at the bottom\n    * 0-N positional arguments next (left-to-right)\n    * 0-N named arguments next\n  */\n\n\n  class VMArgumentsImpl {\n    constructor() {\n      this.stack = null;\n      this.positional = new PositionalArgumentsImpl();\n      this.named = new NamedArgumentsImpl();\n      this.blocks = new BlockArgumentsImpl();\n    }\n\n    empty(stack) {\n      var base = stack[REGISTERS][_vm2.$sp] + 1;\n      this.named.empty(stack, base);\n      this.positional.empty(stack, base);\n      this.blocks.empty(stack, base);\n      return this;\n    }\n\n    setup(stack, names, blockNames, positionalCount, atNames) {\n      this.stack = stack;\n      /*\n             | ... | blocks      | positional  | named |\n             | ... | b0    b1    | p0 p1 p2 p3 | n0 n1 |\n       index | ... | 4/5/6 7/8/9 | 10 11 12 13 | 14 15 |\n                     ^             ^             ^  ^\n                   bbase         pbase       nbase  sp\n      */\n\n      var named = this.named;\n      var namedCount = names.length;\n      var namedBase = stack[REGISTERS][_vm2.$sp] - namedCount + 1;\n      named.setup(stack, namedBase, namedCount, names, atNames);\n      var positional = this.positional;\n      var positionalBase = namedBase - positionalCount;\n      positional.setup(stack, positionalBase, positionalCount);\n      var blocks = this.blocks;\n      var blocksCount = blockNames.length;\n      var blocksBase = positionalBase - blocksCount * 3;\n      blocks.setup(stack, blocksBase, blocksCount, blockNames);\n    }\n\n    get tag() {\n      return combineTagged([this.positional, this.named]);\n    }\n\n    get base() {\n      return this.blocks.base;\n    }\n\n    get length() {\n      return this.positional.length + this.named.length + this.blocks.length * 3;\n    }\n\n    at(pos) {\n      return this.positional.at(pos);\n    }\n\n    realloc(offset) {\n      var {\n        stack\n      } = this;\n\n      if (offset > 0 && stack !== null) {\n        var {\n          positional,\n          named\n        } = this;\n        var newBase = positional.base + offset;\n        var length = positional.length + named.length;\n\n        for (var i = length - 1; i >= 0; i--) {\n          stack.copy(i + positional.base, i + newBase);\n        }\n\n        positional.base += offset;\n        named.base += offset;\n        stack[REGISTERS][_vm2.$sp] += offset;\n      }\n    }\n\n    capture() {\n      var positional = this.positional.length === 0 ? EMPTY_POSITIONAL : this.positional.capture();\n      var named = this.named.length === 0 ? EMPTY_NAMED : this.named.capture();\n      return new CapturedArgumentsImpl(this.tag, positional, named, this.length);\n    }\n\n    clear() {\n      var {\n        stack,\n        length\n      } = this;\n      if (length > 0 && stack !== null) stack.pop(length);\n    }\n\n  }\n\n  class PositionalArgumentsImpl {\n    constructor() {\n      this.base = 0;\n      this.length = 0;\n      this.stack = null;\n      this._tag = null;\n      this._references = null;\n    }\n\n    empty(stack, base) {\n      this.stack = stack;\n      this.base = base;\n      this.length = 0;\n      this._tag = _validator.CONSTANT_TAG;\n      this._references = _util.EMPTY_ARRAY;\n    }\n\n    setup(stack, base, length) {\n      this.stack = stack;\n      this.base = base;\n      this.length = length;\n\n      if (length === 0) {\n        this._tag = _validator.CONSTANT_TAG;\n        this._references = _util.EMPTY_ARRAY;\n      } else {\n        this._tag = null;\n        this._references = null;\n      }\n    }\n\n    get tag() {\n      var tag = this._tag;\n\n      if (!tag) {\n        tag = this._tag = combineTagged(this.references);\n      }\n\n      return tag;\n    }\n\n    at(position) {\n      var {\n        base,\n        length,\n        stack\n      } = this;\n\n      if (position < 0 || position >= length) {\n        return UNDEFINED_REFERENCE;\n      }\n\n      return stack.get(position, base);\n    }\n\n    capture() {\n      return new CapturedPositionalArgumentsImpl(this.tag, this.references);\n    }\n\n    prepend(other) {\n      var additions = other.length;\n\n      if (additions > 0) {\n        var {\n          base,\n          length,\n          stack\n        } = this;\n        this.base = base = base - additions;\n        this.length = length + additions;\n\n        for (var i = 0; i < additions; i++) {\n          stack.set(other.at(i), i, base);\n        }\n\n        this._tag = null;\n        this._references = null;\n      }\n    }\n\n    get references() {\n      var references = this._references;\n\n      if (!references) {\n        var {\n          stack,\n          base,\n          length\n        } = this;\n        references = this._references = stack.sliceArray(base, base + length);\n      }\n\n      return references;\n    }\n\n  }\n\n  class CapturedPositionalArgumentsImpl {\n    constructor(tag, references, length = references.length) {\n      this.tag = tag;\n      this.references = references;\n      this.length = length;\n    }\n\n    static empty() {\n      return new CapturedPositionalArgumentsImpl(_validator.CONSTANT_TAG, _util.EMPTY_ARRAY, 0);\n    }\n\n    at(position) {\n      return this.references[position];\n    }\n\n    value() {\n      return this.references.map(this.valueOf);\n    }\n\n    get(name) {\n      var {\n        references,\n        length\n      } = this;\n\n      if (name === 'length') {\n        return PrimitiveReference.create(length);\n      } else {\n        var idx = parseInt(name, 10);\n\n        if (idx < 0 || idx >= length) {\n          return UNDEFINED_REFERENCE;\n        } else {\n          return references[idx];\n        }\n      }\n    }\n\n    valueOf(reference) {\n      return reference.value();\n    }\n\n  }\n\n  _exports.CapturedPositionalArgumentsImpl = CapturedPositionalArgumentsImpl;\n\n  class NamedArgumentsImpl {\n    constructor() {\n      this.base = 0;\n      this.length = 0;\n      this._references = null;\n      this._names = _util.EMPTY_ARRAY;\n      this._atNames = _util.EMPTY_ARRAY;\n    }\n\n    empty(stack, base) {\n      this.stack = stack;\n      this.base = base;\n      this.length = 0;\n      this._references = _util.EMPTY_ARRAY;\n      this._names = _util.EMPTY_ARRAY;\n      this._atNames = _util.EMPTY_ARRAY;\n    }\n\n    setup(stack, base, length, names, atNames) {\n      this.stack = stack;\n      this.base = base;\n      this.length = length;\n\n      if (length === 0) {\n        this._references = _util.EMPTY_ARRAY;\n        this._names = _util.EMPTY_ARRAY;\n        this._atNames = _util.EMPTY_ARRAY;\n      } else {\n        this._references = null;\n\n        if (atNames) {\n          this._names = null;\n          this._atNames = names;\n        } else {\n          this._names = names;\n          this._atNames = null;\n        }\n      }\n    }\n\n    get tag() {\n      return combineTagged(this.references);\n    }\n\n    get names() {\n      var names = this._names;\n\n      if (!names) {\n        names = this._names = this._atNames.map(this.toSyntheticName);\n      }\n\n      return names;\n    }\n\n    get atNames() {\n      var atNames = this._atNames;\n\n      if (!atNames) {\n        atNames = this._atNames = this._names.map(this.toAtName);\n      }\n\n      return atNames;\n    }\n\n    has(name) {\n      return this.names.indexOf(name) !== -1;\n    }\n\n    get(name, atNames = false) {\n      var {\n        base,\n        stack\n      } = this;\n      var names = atNames ? this.atNames : this.names;\n      var idx = names.indexOf(name);\n\n      if (idx === -1) {\n        return UNDEFINED_REFERENCE;\n      }\n\n      return stack.get(idx, base);\n    }\n\n    capture() {\n      return new CapturedNamedArgumentsImpl(this.tag, this.names, this.references);\n    }\n\n    merge(other) {\n      var {\n        length: extras\n      } = other;\n\n      if (extras > 0) {\n        var {\n          names,\n          length,\n          stack\n        } = this;\n        var {\n          names: extraNames\n        } = other;\n\n        if (Object.isFrozen(names) && names.length === 0) {\n          names = [];\n        }\n\n        for (var i = 0; i < extras; i++) {\n          var _name7 = extraNames[i];\n          var idx = names.indexOf(_name7);\n\n          if (idx === -1) {\n            length = names.push(_name7);\n            stack.push(other.references[i]);\n          }\n        }\n\n        this.length = length;\n        this._references = null;\n        this._names = names;\n        this._atNames = null;\n      }\n    }\n\n    get references() {\n      var references = this._references;\n\n      if (!references) {\n        var {\n          base,\n          length,\n          stack\n        } = this;\n        references = this._references = stack.sliceArray(base, base + length);\n      }\n\n      return references;\n    }\n\n    toSyntheticName(name) {\n      return name.slice(1);\n    }\n\n    toAtName(name) {\n      return `@${name}`;\n    }\n\n  }\n\n  class CapturedNamedArgumentsImpl {\n    constructor(tag, names, references) {\n      this.tag = tag;\n      this.names = names;\n      this.references = references;\n      this.length = names.length;\n      this._map = null;\n    }\n\n    get map() {\n      var map = this._map;\n\n      if (!map) {\n        var {\n          names,\n          references\n        } = this;\n        map = this._map = (0, _util.dict)();\n\n        for (var i = 0; i < names.length; i++) {\n          var _name8 = names[i];\n          map[_name8] = references[i];\n        }\n      }\n\n      return map;\n    }\n\n    has(name) {\n      return this.names.indexOf(name) !== -1;\n    }\n\n    get(name) {\n      var {\n        names,\n        references\n      } = this;\n      var idx = names.indexOf(name);\n\n      if (idx === -1) {\n        return UNDEFINED_REFERENCE;\n      } else {\n        return references[idx];\n      }\n    }\n\n    value() {\n      var {\n        names,\n        references\n      } = this;\n      var out = (0, _util.dict)();\n\n      for (var i = 0; i < names.length; i++) {\n        var _name9 = names[i];\n        out[_name9] = references[i].value();\n      }\n\n      return out;\n    }\n\n  }\n\n  _exports.CapturedNamedArgumentsImpl = CapturedNamedArgumentsImpl;\n\n  function toSymbolName(name) {\n    return `&${name}`;\n  }\n\n  class BlockArgumentsImpl {\n    constructor() {\n      this.internalValues = null;\n      this._symbolNames = null;\n      this.internalTag = null;\n      this.names = _util.EMPTY_ARRAY;\n      this.length = 0;\n      this.base = 0;\n    }\n\n    empty(stack, base) {\n      this.stack = stack;\n      this.names = _util.EMPTY_ARRAY;\n      this.base = base;\n      this.length = 0;\n      this._symbolNames = null;\n      this.internalTag = _validator.CONSTANT_TAG;\n      this.internalValues = _util.EMPTY_ARRAY;\n    }\n\n    setup(stack, base, length, names) {\n      this.stack = stack;\n      this.names = names;\n      this.base = base;\n      this.length = length;\n      this._symbolNames = null;\n\n      if (length === 0) {\n        this.internalTag = _validator.CONSTANT_TAG;\n        this.internalValues = _util.EMPTY_ARRAY;\n      } else {\n        this.internalTag = null;\n        this.internalValues = null;\n      }\n    }\n\n    get values() {\n      var values = this.internalValues;\n\n      if (!values) {\n        var {\n          base,\n          length,\n          stack\n        } = this;\n        values = this.internalValues = stack.sliceArray(base, base + length * 3);\n      }\n\n      return values;\n    }\n\n    has(name) {\n      return this.names.indexOf(name) !== -1;\n    }\n\n    get(name) {\n      var idx = this.names.indexOf(name);\n\n      if (idx === -1) {\n        return null;\n      }\n\n      var {\n        base,\n        stack\n      } = this;\n      var table = stack.get(idx * 3, base);\n      var scope = stack.get(idx * 3 + 1, base);\n      var handle = stack.get(idx * 3 + 2, base);\n      return handle === null ? null : [handle, scope, table];\n    }\n\n    capture() {\n      return new CapturedBlockArgumentsImpl(this.names, this.values);\n    }\n\n    get symbolNames() {\n      var symbolNames = this._symbolNames;\n\n      if (symbolNames === null) {\n        symbolNames = this._symbolNames = this.names.map(toSymbolName);\n      }\n\n      return symbolNames;\n    }\n\n  }\n\n  class CapturedBlockArgumentsImpl {\n    constructor(names, values) {\n      this.names = names;\n      this.values = values;\n      this.length = names.length;\n    }\n\n    has(name) {\n      return this.names.indexOf(name) !== -1;\n    }\n\n    get(name) {\n      var idx = this.names.indexOf(name);\n      if (idx === -1) return null;\n      return [this.values[idx * 3 + 2], this.values[idx * 3 + 1], this.values[idx * 3]];\n    }\n\n  }\n\n  class CapturedArgumentsImpl {\n    constructor(tag, positional, named, length) {\n      this.tag = tag;\n      this.positional = positional;\n      this.named = named;\n      this.length = length;\n    }\n\n    value() {\n      return {\n        named: this.named.value(),\n        positional: this.positional.value()\n      };\n    }\n\n  }\n\n  _exports.CapturedArgumentsImpl = CapturedArgumentsImpl;\n  var EMPTY_NAMED = new CapturedNamedArgumentsImpl(_validator.CONSTANT_TAG, _util.EMPTY_ARRAY, _util.EMPTY_ARRAY);\n  var EMPTY_POSITIONAL = new CapturedPositionalArgumentsImpl(_validator.CONSTANT_TAG, _util.EMPTY_ARRAY);\n  var EMPTY_ARGS = new CapturedArgumentsImpl(_validator.CONSTANT_TAG, EMPTY_POSITIONAL, EMPTY_NAMED, 0);\n  _exports.EMPTY_ARGS = EMPTY_ARGS;\n\n  function initializeRegistersWithSP(sp) {\n    return [0, -1, sp, 0];\n  }\n\n  class LowLevelVM {\n    constructor(stack, heap, program, externs, registers) {\n      this.stack = stack;\n      this.heap = heap;\n      this.program = program;\n      this.externs = externs;\n      this.registers = registers;\n      this.currentOpSize = 0;\n    }\n\n    fetchRegister(register) {\n      return this.registers[register];\n    }\n\n    loadRegister(register, value) {\n      this.registers[register] = value;\n    }\n\n    setPc(pc) {\n      this.registers[_vm2.$pc] = pc;\n    } // Start a new frame and save $ra and $fp on the stack\n\n\n    pushFrame() {\n      this.stack.push(this.registers[_vm2.$ra]);\n      this.stack.push(this.registers[_vm2.$fp]);\n      this.registers[_vm2.$fp] = this.registers[_vm2.$sp] - 1;\n    } // Restore $ra, $sp and $fp\n\n\n    popFrame() {\n      this.registers[_vm2.$sp] = this.registers[_vm2.$fp] - 1;\n      this.registers[_vm2.$ra] = this.stack.get(0);\n      this.registers[_vm2.$fp] = this.stack.get(1);\n    }\n\n    pushSmallFrame() {\n      this.stack.push(this.registers[_vm2.$ra]);\n    }\n\n    popSmallFrame() {\n      this.registers[_vm2.$ra] = this.stack.pop();\n    } // Jump to an address in `program`\n\n\n    goto(offset) {\n      this.setPc(this.target(offset));\n    }\n\n    target(offset) {\n      return this.registers[_vm2.$pc] + offset - this.currentOpSize;\n    } // Save $pc into $ra, then jump to a new address in `program` (jal in MIPS)\n\n\n    call(handle) {\n      this.registers[_vm2.$ra] = this.registers[_vm2.$pc];\n      this.setPc(this.heap.getaddr(handle));\n    } // Put a specific `program` address in $ra\n\n\n    returnTo(offset) {\n      this.registers[_vm2.$ra] = this.target(offset);\n    } // Return to the `program` address stored in $ra\n\n\n    return() {\n      this.setPc(this.registers[_vm2.$ra]);\n    }\n\n    nextStatement() {\n      var {\n        registers,\n        program\n      } = this;\n      var pc = registers[_vm2.$pc];\n\n      if (pc === -1) {\n        return null;\n      } // We have to save off the current operations size so that\n      // when we do a jump we can calculate the correct offset\n      // to where we are going. We can't simply ask for the size\n      // in a jump because we have have already incremented the\n      // program counter to the next instruction prior to executing.\n\n\n      var opcode = program.opcode(pc);\n      var operationSize = this.currentOpSize = opcode.size;\n      this.registers[_vm2.$pc] += operationSize;\n      return opcode;\n    }\n\n    evaluateOuter(opcode, vm) {\n      {\n        this.evaluateInner(opcode, vm);\n      }\n    }\n\n    evaluateInner(opcode, vm) {\n      if (opcode.isMachine) {\n        this.evaluateMachine(opcode);\n      } else {\n        this.evaluateSyscall(opcode, vm);\n      }\n    }\n\n    evaluateMachine(opcode) {\n      switch (opcode.type) {\n        case 0\n        /* PushFrame */\n        :\n          return this.pushFrame();\n\n        case 1\n        /* PopFrame */\n        :\n          return this.popFrame();\n\n        case 3\n        /* InvokeStatic */\n        :\n          return this.call(opcode.op1);\n\n        case 2\n        /* InvokeVirtual */\n        :\n          return this.call(this.stack.pop());\n\n        case 4\n        /* Jump */\n        :\n          return this.goto(opcode.op1);\n\n        case 5\n        /* Return */\n        :\n          return this.return();\n\n        case 6\n        /* ReturnTo */\n        :\n          return this.returnTo(opcode.op1);\n      }\n    }\n\n    evaluateSyscall(opcode, vm) {\n      APPEND_OPCODES.evaluate(vm, opcode, opcode.type);\n    }\n\n  }\n\n  class UpdatingVM {\n    constructor(env, {\n      alwaysRevalidate = false\n    }) {\n      this.frameStack = new _util.Stack();\n      this.env = env;\n      this.dom = env.getDOM();\n      this.alwaysRevalidate = alwaysRevalidate;\n    }\n\n    execute(opcodes, handler) {\n      var {\n        frameStack\n      } = this;\n      this.try(opcodes, handler);\n\n      while (true) {\n        if (frameStack.isEmpty()) break;\n        var opcode = this.frame.nextStatement();\n\n        if (opcode === null) {\n          frameStack.pop();\n          continue;\n        }\n\n        opcode.evaluate(this);\n      }\n    }\n\n    get frame() {\n      return this.frameStack.current;\n    }\n\n    goto(op) {\n      this.frame.goto(op);\n    }\n\n    try(ops, handler) {\n      this.frameStack.push(new UpdatingVMFrame(ops, handler));\n    }\n\n    throw() {\n      this.frame.handleException();\n      this.frameStack.pop();\n    }\n\n  }\n\n  _exports.UpdatingVM = UpdatingVM;\n\n  class ResumableVMStateImpl {\n    constructor(state, resumeCallback) {\n      this.state = state;\n      this.resumeCallback = resumeCallback;\n    }\n\n    resume(runtime, builder) {\n      return this.resumeCallback(runtime, this.state, builder);\n    }\n\n  }\n\n  class BlockOpcode extends UpdatingOpcode {\n    constructor(state, runtime, bounds, children) {\n      super();\n      this.state = state;\n      this.runtime = runtime;\n      this.type = 'block';\n      this.next = null;\n      this.prev = null;\n      this.children = children;\n      this.bounds = bounds;\n    }\n\n    parentElement() {\n      return this.bounds.parentElement();\n    }\n\n    firstNode() {\n      return this.bounds.firstNode();\n    }\n\n    lastNode() {\n      return this.bounds.lastNode();\n    }\n\n    evaluate(vm) {\n      vm.try(this.children, null);\n    }\n\n  }\n\n  class TryOpcode extends BlockOpcode {\n    constructor(state, runtime, bounds, children) {\n      super(state, runtime, bounds, children);\n      this.type = 'try';\n      this.tag = this._tag = (0, _validator.createUpdatableTag)();\n    }\n\n    didInitializeChildren() {\n      (0, _validator.updateTag)(this._tag, combineSlice(this.children));\n    }\n\n    evaluate(vm) {\n      vm.try(this.children, this);\n    }\n\n    handleException() {\n      var {\n        state,\n        bounds,\n        children,\n        prev,\n        next,\n        runtime\n      } = this;\n      legacySyncReset(this, runtime.env);\n      children.clear();\n      asyncReset(this, runtime.env);\n      var elementStack = NewElementBuilder.resume(runtime.env, bounds);\n      var vm = state.resume(runtime, elementStack);\n      var updating = new _util.LinkedList();\n      var result = vm.execute(vm => {\n        vm.pushUpdating(updating);\n        vm.updateWith(this);\n        vm.pushUpdating(children);\n      });\n      (0, _util.associate)(this, result.drop);\n      this.prev = prev;\n      this.next = next;\n    }\n\n  }\n\n  class ListRevalidationDelegate {\n    constructor(opcode, marker) {\n      this.opcode = opcode;\n      this.marker = marker;\n      this.didInsert = false;\n      this.didDelete = false;\n      this.map = opcode.map;\n      this.updating = opcode['children'];\n    }\n\n    insert(_env, key, item, memo, before) {\n      var {\n        map,\n        opcode,\n        updating\n      } = this;\n      var nextSibling = null;\n      var reference = null;\n      reference = map.get(before);\n      nextSibling = reference !== undefined ? reference['bounds'].firstNode() : this.marker;\n      var vm = opcode.vmForInsertion(nextSibling);\n      var tryOpcode = null;\n      var result = vm.execute(vm => {\n        vm.pushUpdating();\n        tryOpcode = vm.enterItem(memo, item);\n        map.set(key, tryOpcode);\n      });\n      updating.insertBefore(tryOpcode, reference);\n      (0, _util.associate)(opcode, result.drop);\n      this.didInsert = true;\n    }\n\n    retain(_env, _key, _item, _memo) {}\n\n    move(_env, key, _item, _memo, before) {\n      var {\n        map,\n        updating\n      } = this;\n      var entry = map.get(key);\n\n      if (before === _reference.END) {\n        move(entry, this.marker);\n        updating.remove(entry);\n        updating.append(entry);\n      } else {\n        var reference = map.get(before);\n        move(entry, reference.firstNode());\n        updating.remove(entry);\n        updating.insertBefore(entry, reference);\n      }\n    }\n\n    delete(env, key) {\n      var {\n        map,\n        updating\n      } = this;\n      var opcode = map.get(key);\n      detach(opcode, env);\n      updating.remove(opcode);\n      map.delete(key);\n      this.didDelete = true;\n    }\n\n    done() {\n      this.opcode.didInitializeChildren(this.didInsert || this.didDelete);\n    }\n\n  }\n\n  class ListBlockOpcode extends BlockOpcode {\n    constructor(state, runtime, bounds, children, artifacts) {\n      super(state, runtime, bounds, children);\n      this.type = 'list-block';\n      this.map = new Map();\n      this.lastIterated = _validator.INITIAL;\n      this.artifacts = artifacts;\n\n      var _tag = this._tag = (0, _validator.createUpdatableTag)();\n\n      this.tag = (0, _validator.combine)([artifacts.tag, _tag]);\n    }\n\n    didInitializeChildren(listDidChange = true) {\n      this.lastIterated = (0, _validator.valueForTag)(this.artifacts.tag);\n\n      if (listDidChange) {\n        (0, _validator.updateTag)(this._tag, combineSlice(this.children));\n      }\n    }\n\n    evaluate(vm) {\n      var {\n        artifacts,\n        lastIterated\n      } = this;\n\n      if (!(0, _validator.validateTag)(artifacts.tag, lastIterated)) {\n        var {\n          bounds\n        } = this;\n        var {\n          dom\n        } = vm;\n        var marker = dom.createComment('');\n        dom.insertAfter(bounds.parentElement(), marker, bounds.lastNode());\n        var target = new ListRevalidationDelegate(this, marker);\n        var synchronizer = new _reference.IteratorSynchronizer({\n          target,\n          artifacts,\n          env: vm.env\n        });\n        synchronizer.sync();\n        this.parentElement().removeChild(marker);\n      } // Run now-updated updating opcodes\n\n\n      super.evaluate(vm);\n    }\n\n    vmForInsertion(nextSibling) {\n      var {\n        bounds,\n        state,\n        runtime\n      } = this;\n      var elementStack = NewElementBuilder.forInitialRender(runtime.env, {\n        element: bounds.parentElement(),\n        nextSibling\n      });\n      return state.resume(runtime, elementStack);\n    }\n\n  }\n\n  class UpdatingVMFrame {\n    constructor(ops, exceptionHandler) {\n      this.ops = ops;\n      this.exceptionHandler = exceptionHandler;\n      this.current = ops.head();\n    }\n\n    goto(op) {\n      this.current = op;\n    }\n\n    nextStatement() {\n      var {\n        current,\n        ops\n      } = this;\n      if (current) this.current = ops.nextNode(current);\n      return current;\n    }\n\n    handleException() {\n      if (this.exceptionHandler) {\n        this.exceptionHandler.handleException();\n      }\n    }\n\n  }\n\n  class RenderResultImpl {\n    constructor(env, updating, bounds, drop) {\n      this.env = env;\n      this.updating = updating;\n      this.bounds = bounds;\n      this.drop = drop;\n      (0, _util.associate)(this, drop);\n    }\n\n    rerender({\n      alwaysRevalidate = false\n    } = {\n      alwaysRevalidate: false\n    }) {\n      var {\n        env,\n        updating\n      } = this;\n      var vm = new UpdatingVM(env, {\n        alwaysRevalidate\n      });\n      vm.execute(updating, this);\n    }\n\n    parentElement() {\n      return this.bounds.parentElement();\n    }\n\n    firstNode() {\n      return this.bounds.firstNode();\n    }\n\n    lastNode() {\n      return this.bounds.lastNode();\n    }\n\n    handleException() {\n      throw 'this should never happen';\n    }\n\n    [_util.DESTROY]() {\n      clear(this.bounds);\n    } // compat, as this is a user-exposed API\n\n\n    destroy() {\n      inTransaction(this.env, () => {\n        legacySyncDestroy(this, this.env);\n        asyncDestroy(this, this.env);\n      });\n    }\n\n  }\n\n  class InnerStack {\n    constructor(inner = new _lowLevel.Stack(), js = []) {\n      this.inner = inner;\n      this.js = js;\n    }\n\n    slice(start, end) {\n      var inner;\n\n      if (typeof start === 'number' && typeof end === 'number') {\n        inner = this.inner.slice(start, end);\n      } else if (typeof start === 'number' && end === undefined) {\n        inner = this.inner.sliceFrom(start);\n      } else {\n        inner = this.inner.clone();\n      }\n\n      return new InnerStack(inner, this.js.slice(start, end));\n    }\n\n    sliceInner(start, end) {\n      var out = [];\n\n      if (start === -1) {\n        return out;\n      }\n\n      for (var i = start; i < end; i++) {\n        out.push(this.get(i));\n      }\n\n      return out;\n    }\n\n    copy(from, to) {\n      this.inner.copy(from, to);\n    }\n\n    write(pos, value) {\n      switch (typeof value) {\n        case 'boolean':\n        case 'undefined':\n          this.writeRaw(pos, (0, _util.encodeImmediate)(value));\n          break;\n\n        case 'number':\n          if ((0, _util.isSmallInt)(value)) {\n            this.writeRaw(pos, (0, _util.encodeImmediate)(value));\n            break;\n          }\n\n        case 'object':\n          if (value === null) {\n            this.writeRaw(pos, (0, _util.encodeImmediate)(value));\n            break;\n          }\n\n        default:\n          this.writeJs(pos, value);\n      }\n    }\n\n    writeJs(pos, value) {\n      var idx = this.js.length;\n      this.js.push(value);\n      this.inner.writeRaw(pos, (0, _util.encodeHandle)(idx));\n    }\n\n    writeRaw(pos, value) {\n      this.inner.writeRaw(pos, value);\n    }\n\n    get(pos) {\n      var value = this.inner.getRaw(pos);\n\n      if ((0, _util.isHandle)(value)) {\n        return this.js[(0, _util.decodeHandle)(value)];\n      } else {\n        return (0, _util.decodeImmediate)(value);\n      }\n    }\n\n    reset() {\n      this.inner.reset();\n      this.js.length = 0;\n    }\n\n    get length() {\n      return this.inner.len();\n    }\n\n  }\n\n  class EvaluationStackImpl {\n    // fp -> sp\n    constructor(stack, registers) {\n      this.stack = stack;\n      this[REGISTERS] = registers;\n    }\n\n    static restore(snapshot$$1) {\n      var stack = new InnerStack();\n\n      for (var i = 0; i < snapshot$$1.length; i++) {\n        stack.write(i, snapshot$$1[i]);\n      }\n\n      return new this(stack, initializeRegistersWithSP(snapshot$$1.length - 1));\n    }\n\n    push(value) {\n      this.stack.write(++this[REGISTERS][_vm2.$sp], value);\n    }\n\n    pushJs(value) {\n      this.stack.writeJs(++this[REGISTERS][_vm2.$sp], value);\n    }\n\n    pushRaw(value) {\n      this.stack.writeRaw(++this[REGISTERS][_vm2.$sp], value);\n    }\n\n    dup(position = this[REGISTERS][_vm2.$sp]) {\n      this.stack.copy(position, ++this[REGISTERS][_vm2.$sp]);\n    }\n\n    copy(from, to) {\n      this.stack.copy(from, to);\n    }\n\n    pop(n = 1) {\n      var top = this.stack.get(this[REGISTERS][_vm2.$sp]);\n      this[REGISTERS][_vm2.$sp] -= n;\n      return top;\n    }\n\n    peek(offset = 0) {\n      return this.stack.get(this[REGISTERS][_vm2.$sp] - offset);\n    }\n\n    get(offset, base = this[REGISTERS][_vm2.$fp]) {\n      return this.stack.get(base + offset);\n    }\n\n    set(value, offset, base = this[REGISTERS][_vm2.$fp]) {\n      this.stack.write(base + offset, value);\n    }\n\n    slice(start, end) {\n      return this.stack.slice(start, end);\n    }\n\n    sliceArray(start, end) {\n      return this.stack.sliceInner(start, end);\n    }\n\n    capture(items) {\n      var end = this[REGISTERS][_vm2.$sp] + 1;\n      var start = end - items;\n      return this.stack.sliceInner(start, end);\n    }\n\n    reset() {\n      this.stack.reset();\n    }\n\n    toArray() {\n      console.log(this[REGISTERS]);\n      return this.stack.sliceInner(this[REGISTERS][_vm2.$fp], this[REGISTERS][_vm2.$sp] + 1);\n    }\n\n  }\n\n  var _a$3, _b;\n\n  class Stacks {\n    constructor() {\n      this.scope = new _util.Stack();\n      this.dynamicScope = new _util.Stack();\n      this.updating = new _util.Stack();\n      this.cache = new _util.Stack();\n      this.list = new _util.Stack();\n    }\n\n  }\n\n  class VM {\n    /**\n     * End of migrated.\n     */\n    constructor(runtime, {\n      pc,\n      scope,\n      dynamicScope,\n      stack\n    }, elementStack) {\n      this.runtime = runtime;\n      this.elementStack = elementStack;\n      this[_a$3] = new Stacks();\n      this[_b] = new _util.Stack();\n      this.s0 = null;\n      this.s1 = null;\n      this.t0 = null;\n      this.t1 = null;\n      this.v0 = null;\n      var evalStack = EvaluationStackImpl.restore(stack);\n      evalStack[REGISTERS][_vm2.$pc] = pc;\n      evalStack[REGISTERS][_vm2.$sp] = stack.length - 1;\n      evalStack[REGISTERS][_vm2.$fp] = -1;\n      this[HEAP] = this.program.heap;\n      this[CONSTANTS] = this.program.constants;\n      this.elementStack = elementStack;\n      this[STACKS].scope.push(scope);\n      this[STACKS].dynamicScope.push(dynamicScope);\n      this[ARGS] = new VMArgumentsImpl();\n      this[INNER_VM] = new LowLevelVM(evalStack, this[HEAP], runtime.program, {\n        debugBefore: opcode => {\n          return APPEND_OPCODES.debugBefore(this, opcode);\n        },\n        debugAfter: state => {\n          APPEND_OPCODES.debugAfter(this, state);\n        }\n      }, evalStack[REGISTERS]);\n      this.destructor = {};\n      this[DESTRUCTOR_STACK].push(this.destructor);\n    }\n\n    get stack() {\n      return this[INNER_VM].stack;\n    }\n    /* Registers */\n\n\n    get pc() {\n      return this[INNER_VM].fetchRegister(_vm2.$pc);\n    } // Fetch a value from a register onto the stack\n\n\n    fetch(register) {\n      this.stack.push(this.fetchValue(register));\n    } // Load a value from the stack into a register\n\n\n    load(register) {\n      var value = this.stack.pop();\n      this.loadValue(register, value);\n    }\n\n    fetchValue(register) {\n      if ((0, _vm2.isLowLevelRegister)(register)) {\n        return this[INNER_VM].fetchRegister(register);\n      }\n\n      switch (register) {\n        case _vm2.$s0:\n          return this.s0;\n\n        case _vm2.$s1:\n          return this.s1;\n\n        case _vm2.$t0:\n          return this.t0;\n\n        case _vm2.$t1:\n          return this.t1;\n\n        case _vm2.$v0:\n          return this.v0;\n      }\n    } // Load a value into a register\n\n\n    loadValue(register, value) {\n      if ((0, _vm2.isLowLevelRegister)(register)) {\n        this[INNER_VM].loadRegister(register, value);\n      }\n\n      switch (register) {\n        case _vm2.$s0:\n          this.s0 = value;\n          break;\n\n        case _vm2.$s1:\n          this.s1 = value;\n          break;\n\n        case _vm2.$t0:\n          this.t0 = value;\n          break;\n\n        case _vm2.$t1:\n          this.t1 = value;\n          break;\n\n        case _vm2.$v0:\n          this.v0 = value;\n          break;\n      }\n    }\n    /**\n     * Migrated to Inner\n     */\n    // Start a new frame and save $ra and $fp on the stack\n\n\n    pushFrame() {\n      this[INNER_VM].pushFrame();\n    } // Restore $ra, $sp and $fp\n\n\n    popFrame() {\n      this[INNER_VM].popFrame();\n    } // Jump to an address in `program`\n\n\n    goto(offset) {\n      this[INNER_VM].goto(offset);\n    } // Save $pc into $ra, then jump to a new address in `program` (jal in MIPS)\n\n\n    call(handle) {\n      this[INNER_VM].call(handle);\n    } // Put a specific `program` address in $ra\n\n\n    returnTo(offset) {\n      this[INNER_VM].returnTo(offset);\n    } // Return to the `program` address stored in $ra\n\n\n    return() {\n      this[INNER_VM].return();\n    }\n\n    get program() {\n      return this.runtime.program;\n    }\n\n    get env() {\n      return this.runtime.env;\n    }\n\n    captureState(args, pc = this[INNER_VM].fetchRegister(_vm2.$pc)) {\n      return {\n        pc,\n        dynamicScope: this.dynamicScope(),\n        scope: this.scope(),\n        stack: this.stack.capture(args)\n      };\n    }\n\n    beginCacheGroup() {\n      this[STACKS].cache.push(this.updating().tail());\n    }\n\n    commitCacheGroup() {\n      var END$$1 = new LabelOpcode('END');\n      var opcodes = this.updating();\n      var marker = this[STACKS].cache.pop();\n      var head = marker ? opcodes.nextNode(marker) : opcodes.head();\n      var tail = opcodes.tail();\n      var tag = combineSlice(new _util.ListSlice(head, tail));\n      var guard = new JumpIfNotModifiedOpcode(tag, END$$1);\n      opcodes.insertBefore(guard, head);\n      opcodes.append(new DidModifyOpcode(guard));\n      opcodes.append(END$$1);\n    }\n\n    enter(args) {\n      var updating = new _util.LinkedList();\n      var state = this.capture(args);\n      var block = this.elements().pushUpdatableBlock();\n      var tryOpcode = new TryOpcode(state, this.runtime, block, updating);\n      this.didEnter(tryOpcode);\n    }\n\n    enterItem(memo, value) {\n      var stack = this.stack;\n      stack.push(value);\n      stack.push(memo);\n      var state = this.capture(2);\n      var block = this.elements().pushUpdatableBlock(); // let ip = this.ip;\n      // this.ip = end + 4;\n      // this.frames.push(ip);\n\n      var opcode = new TryOpcode(state, this.runtime, block, new _util.LinkedList());\n      this.didEnter(opcode);\n      return opcode;\n    }\n\n    registerItem(key, opcode) {\n      this.listBlock().map.set(key, opcode);\n    }\n\n    enterList(offset) {\n      var updating = new _util.LinkedList();\n      var addr = this[INNER_VM].target(offset);\n      var state = this.capture(0, addr);\n      var list = this.elements().pushBlockList(updating);\n      var artifacts = this.stack.peek().artifacts;\n      var opcode = new ListBlockOpcode(state, this.runtime, list, updating, artifacts);\n      this[STACKS].list.push(opcode);\n      this.didEnter(opcode);\n    }\n\n    didEnter(opcode) {\n      this.associateDestructor((0, _util.destructor)(opcode));\n      this[DESTRUCTOR_STACK].push(opcode);\n      this.updateWith(opcode);\n      this.pushUpdating(opcode.children);\n    }\n\n    exit() {\n      this[DESTRUCTOR_STACK].pop();\n      this.elements().popBlock();\n      this.popUpdating();\n      var parent = this.updating().tail();\n      parent.didInitializeChildren();\n    }\n\n    exitList() {\n      this.exit();\n      this[STACKS].list.pop();\n    }\n\n    pushUpdating(list = new _util.LinkedList()) {\n      this[STACKS].updating.push(list);\n    }\n\n    popUpdating() {\n      return this[STACKS].updating.pop();\n    }\n\n    updateWith(opcode) {\n      this.updating().append(opcode);\n    }\n\n    listBlock() {\n      return this[STACKS].list.current;\n    }\n\n    associateDestructor(child) {\n      if (!(0, _util.isDrop)(child)) return;\n      var parent = this[DESTRUCTOR_STACK].current;\n      (0, _util.associateDestructor)(parent, child);\n    }\n\n    associateDestroyable(child) {\n      this.associateDestructor((0, _util.destructor)(child));\n    }\n\n    tryUpdating() {\n      return this[STACKS].updating.current;\n    }\n\n    updating() {\n      return this[STACKS].updating.current;\n    }\n\n    elements() {\n      return this.elementStack;\n    }\n\n    scope() {\n      return this[STACKS].scope.current;\n    }\n\n    dynamicScope() {\n      return this[STACKS].dynamicScope.current;\n    }\n\n    pushChildScope() {\n      this[STACKS].scope.push(this.scope().child());\n    }\n\n    pushDynamicScope() {\n      var child = this.dynamicScope().child();\n      this[STACKS].dynamicScope.push(child);\n      return child;\n    }\n\n    pushRootScope(size) {\n      var scope = ScopeImpl.sized(size);\n      this[STACKS].scope.push(scope);\n      return scope;\n    }\n\n    pushScope(scope) {\n      this[STACKS].scope.push(scope);\n    }\n\n    popScope() {\n      this[STACKS].scope.pop();\n    }\n\n    popDynamicScope() {\n      this[STACKS].dynamicScope.pop();\n    } /// SCOPE HELPERS\n\n\n    getSelf() {\n      return this.scope().getSelf();\n    }\n\n    referenceForSymbol(symbol$$1) {\n      return this.scope().getSymbol(symbol$$1);\n    } /// EXECUTION\n\n\n    execute(initialize) {\n      if (initialize) initialize(this);\n      var result;\n\n      try {\n        while (true) {\n          result = this.next();\n          if (result.done) break;\n        }\n      } finally {\n        // If any existing blocks are open, due to an error or something like\n        // that, we need to close them all and clean things up properly.\n        var elements = this.elements();\n\n        while (elements.hasBlocks) {\n          elements.popBlock();\n        }\n      }\n\n      return result.value;\n    }\n\n    next() {\n      var {\n        env,\n        elementStack\n      } = this;\n      var opcode = this[INNER_VM].nextStatement();\n      var result;\n\n      if (opcode !== null) {\n        this[INNER_VM].evaluateOuter(opcode, this);\n        result = {\n          done: false,\n          value: null\n        };\n      } else {\n        // Unload the stack\n        this.stack.reset();\n        result = {\n          done: true,\n          value: new RenderResultImpl(env, this.popUpdating(), elementStack.popBlock(), this.destructor)\n        };\n      }\n\n      return result;\n    }\n\n    bindDynamicScope(names) {\n      var scope = this.dynamicScope();\n\n      for (var i = names.length - 1; i >= 0; i--) {\n        var _name10 = this[CONSTANTS].getString(names[i]);\n\n        scope.set(_name10, this.stack.pop());\n      }\n    }\n\n  }\n\n  _exports.LowLevelVM = VM;\n  _a$3 = STACKS, _b = DESTRUCTOR_STACK;\n\n  function vmState(pc, scope = ScopeImpl.root(UNDEFINED_REFERENCE, 0), dynamicScope) {\n    return {\n      pc,\n      scope,\n      dynamicScope,\n      stack: []\n    };\n  }\n\n  class AotVM extends VM {\n    static empty(runtime, {\n      handle,\n      treeBuilder,\n      dynamicScope\n    }) {\n      var vm = initAOT(runtime, vmState(runtime.program.heap.getaddr(handle), ScopeImpl.root(UNDEFINED_REFERENCE, 0), dynamicScope), treeBuilder);\n      vm.pushUpdating();\n      return vm;\n    }\n\n    static initial(runtime, {\n      handle,\n      self,\n      treeBuilder,\n      dynamicScope\n    }) {\n      var scopeSize = runtime.program.heap.scopesizeof(handle);\n      var scope = ScopeImpl.root(self, scopeSize);\n      var pc = runtime.program.heap.getaddr(handle);\n      var state = vmState(pc, scope, dynamicScope);\n      var vm = initAOT(runtime, state, treeBuilder);\n      vm.pushUpdating();\n      return vm;\n    }\n\n    capture(args, pc = this[INNER_VM].fetchRegister(_vm2.$pc)) {\n      return new ResumableVMStateImpl(this.captureState(args, pc), initAOT);\n    }\n\n  }\n\n  function initAOT(runtime, state, builder) {\n    return new AotVM(runtime, state, builder);\n  }\n\n  function initJIT(context) {\n    return (runtime, state, builder) => new JitVM(runtime, state, builder, context);\n  }\n\n  class JitVM extends VM {\n    constructor(runtime, state, elementStack, context) {\n      super(runtime, state, elementStack);\n      this.context = context;\n      this.resume = initJIT(this.context);\n    }\n\n    static initial(runtime, context, {\n      handle,\n      self,\n      dynamicScope,\n      treeBuilder\n    }) {\n      var scopeSize = runtime.program.heap.scopesizeof(handle);\n      var scope = ScopeImpl.root(self, scopeSize);\n      var state = vmState(runtime.program.heap.getaddr(handle), scope, dynamicScope);\n      var vm = initJIT(context)(runtime, state, treeBuilder);\n      vm.pushUpdating();\n      return vm;\n    }\n\n    static empty(runtime, {\n      handle,\n      treeBuilder,\n      dynamicScope\n    }, context) {\n      var vm = initJIT(context)(runtime, vmState(runtime.program.heap.getaddr(handle), ScopeImpl.root(UNDEFINED_REFERENCE, 0), dynamicScope), treeBuilder);\n      vm.pushUpdating();\n      return vm;\n    }\n\n    capture(args, pc = this[INNER_VM].fetchRegister(_vm2.$pc)) {\n      return new ResumableVMStateImpl(this.captureState(args, pc), this.resume);\n    }\n\n    compile(block) {\n      var handle = (0, _util.unwrapHandle)(block.compile(this.context));\n      return handle;\n    }\n\n  }\n\n  class TemplateIteratorImpl {\n    constructor(vm) {\n      this.vm = vm;\n    }\n\n    next() {\n      return this.vm.next();\n    }\n\n    sync() {\n      return renderSync(this.vm.runtime.env, this);\n    }\n\n  }\n\n  function renderSync(env, iterator) {\n    env.begin();\n    var iteratorResult;\n\n    do {\n      iteratorResult = iterator.next();\n    } while (!iteratorResult.done);\n\n    var result = iteratorResult.value;\n    env.commit();\n    return result;\n  }\n\n  function renderAotMain(runtime, self, treeBuilder, handle, dynamicScope = new DefaultDynamicScope()) {\n    var vm = AotVM.initial(runtime, {\n      self,\n      dynamicScope,\n      treeBuilder,\n      handle\n    });\n    return new TemplateIteratorImpl(vm);\n  }\n\n  function renderAot(runtime, handle, cursor, self = UNDEFINED_REFERENCE) {\n    var treeBuilder = NewElementBuilder.forInitialRender(runtime.env, cursor);\n    var dynamicScope = new DefaultDynamicScope();\n    var vm = AotVM.initial(runtime, {\n      self,\n      dynamicScope,\n      treeBuilder,\n      handle\n    });\n    return new TemplateIteratorImpl(vm);\n  }\n\n  function renderJitMain(runtime, context, self, treeBuilder, handle, dynamicScope = new DefaultDynamicScope()) {\n    var vm = JitVM.initial(runtime, context, {\n      self,\n      dynamicScope,\n      treeBuilder,\n      handle\n    });\n    return new TemplateIteratorImpl(vm);\n  }\n\n  function renderInvocation(vm, invocation, definition, args) {\n    // Get a list of tuples of argument names and references, like\n    // [['title', reference], ['name', reference]]\n    var argList = Object.keys(args).map(key => [key, args[key]]);\n    var blockNames = ['main', 'else', 'attrs']; // Prefix argument names with `@` symbol\n\n    var argNames = argList.map(([name]) => `@${name}`);\n    vm.pushFrame(); // Push blocks on to the stack, three stack values per block\n\n    for (var i = 0; i < 3 * blockNames.length; i++) {\n      vm.stack.push(null);\n    }\n\n    vm.stack.push(null); // For each argument, push its backing reference on to the stack\n\n    argList.forEach(([, reference]) => {\n      vm.stack.push(reference);\n    }); // Configure VM based on blocks and args just pushed on to the stack.\n\n    vm[ARGS].setup(vm.stack, argNames, blockNames, 0, true); // Needed for the Op.Main opcode: arguments, component invocation object, and\n    // component definition.\n\n    vm.stack.push(vm[ARGS]);\n    vm.stack.push(invocation);\n    vm.stack.push(definition);\n    return new TemplateIteratorImpl(vm);\n  }\n\n  function renderAotComponent(runtime, treeBuilder, main, name, args = {}, dynamicScope = new DefaultDynamicScope()) {\n    var vm = AotVM.empty(runtime, {\n      treeBuilder,\n      handle: main,\n      dynamicScope\n    });\n    var definition = resolveComponent(vm.runtime.resolver, name);\n    var {\n      manager,\n      state\n    } = definition;\n    var capabilities = capabilityFlagsFrom(manager.getCapabilities(state));\n    var invocation;\n\n    if (hasStaticLayoutCapability(capabilities, manager)) {\n      invocation = manager.getAotStaticLayout(state, vm.runtime.resolver);\n    } else {\n      throw new Error('Cannot invoke components with dynamic layouts as a root component.');\n    }\n\n    return renderInvocation(vm, invocation, definition, args);\n  }\n\n  function renderJitComponent(runtime, treeBuilder, context, main, name, args = {}, dynamicScope = new DefaultDynamicScope()) {\n    var vm = JitVM.empty(runtime, {\n      treeBuilder,\n      handle: main,\n      dynamicScope\n    }, context);\n    var definition = resolveComponent(vm.runtime.resolver, name);\n    var {\n      manager,\n      state\n    } = definition;\n    var capabilities = capabilityFlagsFrom(manager.getCapabilities(state));\n    var invocation;\n\n    if (hasStaticLayoutCapability(capabilities, manager)) {\n      var layout = manager.getJitStaticLayout(state, vm.runtime.resolver);\n      var handle = (0, _util.unwrapHandle)(layout.compile(context));\n\n      if (Array.isArray(handle)) {\n        var error = handle[0];\n        throw new Error(`Compile Error: ${error.problem} ${error.span.start}..${error.span.end} :: TODO (thread better)`);\n      }\n\n      invocation = {\n        handle,\n        symbolTable: layout.symbolTable\n      };\n    } else {\n      throw new Error('Cannot invoke components with dynamic layouts as a root component.');\n    }\n\n    return renderInvocation(vm, invocation, definition, args);\n  }\n\n  var SERIALIZATION_FIRST_NODE_STRING = '%+b:0%';\n  _exports.SERIALIZATION_FIRST_NODE_STRING = SERIALIZATION_FIRST_NODE_STRING;\n\n  function isSerializationFirstNode(node) {\n    return node.nodeValue === SERIALIZATION_FIRST_NODE_STRING;\n  }\n\n  class RehydratingCursor extends CursorImpl {\n    constructor(element, nextSibling, startingBlockDepth) {\n      super(element, nextSibling);\n      this.startingBlockDepth = startingBlockDepth;\n      this.candidate = null;\n      this.injectedOmittedNode = false;\n      this.openBlockDepth = startingBlockDepth - 1;\n    }\n\n  }\n\n  class RehydrateBuilder extends NewElementBuilder {\n    constructor(env, parentNode, nextSibling) {\n      super(env, parentNode, nextSibling);\n      this.unmatchedAttributes = null;\n      this.blockDepth = 0;\n      if (nextSibling) throw new Error('Rehydration with nextSibling not supported');\n      var node = this.currentCursor.element.firstChild;\n\n      while (node !== null) {\n        if (isComment(node) && isSerializationFirstNode(node)) {\n          break;\n        }\n\n        node = node.nextSibling;\n      }\n\n      this.candidate = node;\n    }\n\n    get currentCursor() {\n      return this[CURSOR_STACK].current;\n    }\n\n    get candidate() {\n      if (this.currentCursor) {\n        return this.currentCursor.candidate;\n      }\n\n      return null;\n    }\n\n    set candidate(node) {\n      var currentCursor = this.currentCursor;\n      currentCursor.candidate = node;\n    }\n\n    disableRehydration(nextSibling) {\n      var currentCursor = this.currentCursor; // rehydration will be disabled until we either:\n      // * hit popElement (and return to using the parent elements cursor)\n      // * hit closeBlock and the next sibling is a close block comment\n      //   matching the expected openBlockDepth\n\n      currentCursor.candidate = null;\n      currentCursor.nextSibling = nextSibling;\n    }\n\n    enableRehydration(candidate) {\n      var currentCursor = this.currentCursor;\n      currentCursor.candidate = candidate;\n      currentCursor.nextSibling = null;\n    }\n\n    pushElement(element, nextSibling = null) {\n      var cursor = new RehydratingCursor(element, nextSibling, this.blockDepth || 0);\n      /**\n       * <div>   <---------------  currentCursor.element\n       *   <!--%+b:1%--> <-------  would have been removed during openBlock\n       *   <div> <---------------  currentCursor.candidate -> cursor.element\n       *     <!--%+b:2%--> <-----  currentCursor.candidate.firstChild -> cursor.candidate\n       *     Foo\n       *     <!--%-b:2%-->\n       *   </div>\n       *   <!--%-b:1%-->  <------  becomes currentCursor.candidate\n       */\n\n      if (this.candidate !== null) {\n        cursor.candidate = element.firstChild;\n        this.candidate = element.nextSibling;\n      }\n\n      this[CURSOR_STACK].push(cursor);\n    } // clears until the end of the current container\n    // either the current open block or higher\n\n\n    clearMismatch(candidate) {\n      var current = candidate;\n      var currentCursor = this.currentCursor;\n\n      if (currentCursor !== null) {\n        var openBlockDepth = currentCursor.openBlockDepth;\n\n        if (openBlockDepth >= currentCursor.startingBlockDepth) {\n          while (current) {\n            if (isCloseBlock(current)) {\n              var closeBlockDepth = getBlockDepth(current);\n\n              if (openBlockDepth >= closeBlockDepth) {\n                break;\n              }\n            }\n\n            current = this.remove(current);\n          }\n        } else {\n          while (current !== null) {\n            current = this.remove(current);\n          }\n        } // current cursor parentNode should be openCandidate if element\n        // or openCandidate.parentNode if comment\n\n\n        this.disableRehydration(current);\n      }\n    }\n\n    __openBlock() {\n      var {\n        currentCursor\n      } = this;\n      if (currentCursor === null) return;\n      var blockDepth = this.blockDepth;\n      this.blockDepth++;\n      var {\n        candidate\n      } = currentCursor;\n      if (candidate === null) return;\n      var {\n        tagName\n      } = currentCursor.element;\n\n      if (isOpenBlock(candidate) && getBlockDepth(candidate) === blockDepth) {\n        this.candidate = this.remove(candidate);\n        currentCursor.openBlockDepth = blockDepth;\n      } else if (tagName !== 'TITLE' && tagName !== 'SCRIPT' && tagName !== 'STYLE') {\n        this.clearMismatch(candidate);\n      }\n    }\n\n    __closeBlock() {\n      var {\n        currentCursor\n      } = this;\n      if (currentCursor === null) return; // openBlock is the last rehydrated open block\n\n      var openBlockDepth = currentCursor.openBlockDepth; // this currently is the expected next open block depth\n\n      this.blockDepth--;\n      var {\n        candidate\n      } = currentCursor;\n      var isRehydrating = false;\n\n      if (candidate !== null) {\n        isRehydrating = true; //assert(\n        //  openBlockDepth === this.blockDepth,\n        //  'when rehydrating, openBlockDepth should match this.blockDepth here'\n        //);\n\n        if (isCloseBlock(candidate) && getBlockDepth(candidate) === openBlockDepth) {\n          var nextSibling = this.remove(candidate);\n          this.candidate = nextSibling;\n          currentCursor.openBlockDepth--;\n        } else {\n          // close the block and clear mismatch in parent container\n          // we will be either at the end of the element\n          // or at the end of our containing block\n          this.clearMismatch(candidate);\n          isRehydrating = false;\n        }\n      }\n\n      if (isRehydrating === false) {\n        // check if nextSibling matches our expected close block\n        // if so, we remove the close block comment and\n        // restore rehydration after clearMismatch disabled\n        var _nextSibling = currentCursor.nextSibling;\n\n        if (_nextSibling !== null && isCloseBlock(_nextSibling) && getBlockDepth(_nextSibling) === this.blockDepth) {\n          // restore rehydration state\n          var _candidate2 = this.remove(_nextSibling);\n\n          this.enableRehydration(_candidate2);\n          currentCursor.openBlockDepth--;\n        }\n      }\n    }\n\n    __appendNode(node) {\n      var {\n        candidate\n      } = this; // This code path is only used when inserting precisely one node. It needs more\n      // comparison logic, but we can probably lean on the cases where this code path\n      // is actually used.\n\n      if (candidate) {\n        return candidate;\n      } else {\n        return super.__appendNode(node);\n      }\n    }\n\n    __appendHTML(html) {\n      var candidateBounds = this.markerBounds();\n\n      if (candidateBounds) {\n        var first = candidateBounds.firstNode();\n        var last = candidateBounds.lastNode();\n        var newBounds = new ConcreteBounds(this.element, first.nextSibling, last.previousSibling);\n        var possibleEmptyMarker = this.remove(first);\n        this.remove(last);\n\n        if (possibleEmptyMarker !== null && isEmpty$1(possibleEmptyMarker)) {\n          this.candidate = this.remove(possibleEmptyMarker);\n\n          if (this.candidate !== null) {\n            this.clearMismatch(this.candidate);\n          }\n        }\n\n        return newBounds;\n      } else {\n        return super.__appendHTML(html);\n      }\n    }\n\n    remove(node) {\n      var element = node.parentNode;\n      var next = node.nextSibling;\n      element.removeChild(node);\n      return next;\n    }\n\n    markerBounds() {\n      var _candidate = this.candidate;\n\n      if (_candidate && isMarker(_candidate)) {\n        var first = _candidate;\n        var last = first.nextSibling;\n\n        while (last && !isMarker(last)) {\n          last = last.nextSibling;\n        }\n\n        return new ConcreteBounds(this.element, first, last);\n      } else {\n        return null;\n      }\n    }\n\n    __appendText(string) {\n      var {\n        candidate\n      } = this;\n\n      if (candidate) {\n        if (isTextNode(candidate)) {\n          if (candidate.nodeValue !== string) {\n            candidate.nodeValue = string;\n          }\n\n          this.candidate = candidate.nextSibling;\n          return candidate;\n        } else if (isSeparator(candidate)) {\n          this.candidate = this.remove(candidate);\n          return this.__appendText(string);\n        } else if (isEmpty$1(candidate) && string === '') {\n          this.candidate = this.remove(candidate);\n          return this.__appendText(string);\n        } else {\n          this.clearMismatch(candidate);\n          return super.__appendText(string);\n        }\n      } else {\n        return super.__appendText(string);\n      }\n    }\n\n    __appendComment(string) {\n      var _candidate = this.candidate;\n\n      if (_candidate && isComment(_candidate)) {\n        if (_candidate.nodeValue !== string) {\n          _candidate.nodeValue = string;\n        }\n\n        this.candidate = _candidate.nextSibling;\n        return _candidate;\n      } else if (_candidate) {\n        this.clearMismatch(_candidate);\n      }\n\n      return super.__appendComment(string);\n    }\n\n    __openElement(tag) {\n      var _candidate = this.candidate;\n\n      if (_candidate && isElement(_candidate) && isSameNodeType(_candidate, tag)) {\n        this.unmatchedAttributes = [].slice.call(_candidate.attributes);\n        return _candidate;\n      } else if (_candidate) {\n        if (isElement(_candidate) && _candidate.tagName === 'TBODY') {\n          this.pushElement(_candidate, null);\n          this.currentCursor.injectedOmittedNode = true;\n          return this.__openElement(tag);\n        }\n\n        this.clearMismatch(_candidate);\n      }\n\n      return super.__openElement(tag);\n    }\n\n    __setAttribute(name, value, namespace) {\n      var unmatched = this.unmatchedAttributes;\n\n      if (unmatched) {\n        var attr = findByName(unmatched, name);\n\n        if (attr) {\n          if (attr.value !== value) {\n            attr.value = value;\n          }\n\n          unmatched.splice(unmatched.indexOf(attr), 1);\n          return;\n        }\n      }\n\n      return super.__setAttribute(name, value, namespace);\n    }\n\n    __setProperty(name, value) {\n      var unmatched = this.unmatchedAttributes;\n\n      if (unmatched) {\n        var attr = findByName(unmatched, name);\n\n        if (attr) {\n          if (attr.value !== value) {\n            attr.value = value;\n          }\n\n          unmatched.splice(unmatched.indexOf(attr), 1);\n          return;\n        }\n      }\n\n      return super.__setProperty(name, value);\n    }\n\n    __flushElement(parent, constructing) {\n      var {\n        unmatchedAttributes: unmatched\n      } = this;\n\n      if (unmatched) {\n        for (var i = 0; i < unmatched.length; i++) {\n          this.constructing.removeAttribute(unmatched[i].name);\n        }\n\n        this.unmatchedAttributes = null;\n      } else {\n        super.__flushElement(parent, constructing);\n      }\n    }\n\n    willCloseElement() {\n      var {\n        candidate,\n        currentCursor\n      } = this;\n\n      if (candidate !== null) {\n        this.clearMismatch(candidate);\n      }\n\n      if (currentCursor && currentCursor.injectedOmittedNode) {\n        this.popElement();\n      }\n\n      super.willCloseElement();\n    }\n\n    getMarker(element, guid) {\n      var marker = element.querySelector(`script[glmr=\"${guid}\"]`);\n\n      if (marker) {\n        return marker;\n      }\n\n      return null;\n    }\n\n    __pushRemoteElement(element, cursorId, insertBefore) {\n      var marker = this.getMarker(element, cursorId);\n\n      if (insertBefore === undefined) {\n        while (element.firstChild !== null && element.firstChild !== marker) {\n          this.remove(element.firstChild);\n        }\n\n        insertBefore = null;\n      }\n\n      var cursor = new RehydratingCursor(element, null, this.blockDepth);\n      this[CURSOR_STACK].push(cursor);\n\n      if (marker === null) {\n        this.disableRehydration(insertBefore);\n      } else {\n        this.candidate = this.remove(marker);\n      }\n\n      var block = new RemoteLiveBlock(element);\n      return this.pushLiveBlock(block, true);\n    }\n\n    didAppendBounds(bounds) {\n      super.didAppendBounds(bounds);\n\n      if (this.candidate) {\n        var last = bounds.lastNode();\n        this.candidate = last && last.nextSibling;\n      }\n\n      return bounds;\n    }\n\n  }\n\n  _exports.RehydrateBuilder = RehydrateBuilder;\n\n  function isTextNode(node) {\n    return node.nodeType === 3;\n  }\n\n  function isComment(node) {\n    return node.nodeType === 8;\n  }\n\n  function isOpenBlock(node) {\n    return node.nodeType === 8\n    /* COMMENT_NODE */\n    && node.nodeValue.lastIndexOf('%+b:', 0) === 0;\n  }\n\n  function isCloseBlock(node) {\n    return node.nodeType === 8\n    /* COMMENT_NODE */\n    && node.nodeValue.lastIndexOf('%-b:', 0) === 0;\n  }\n\n  function getBlockDepth(node) {\n    return parseInt(node.nodeValue.slice(4), 10);\n  }\n\n  function isElement(node) {\n    return node.nodeType === 1;\n  }\n\n  function isMarker(node) {\n    return node.nodeType === 8 && node.nodeValue === '%glmr%';\n  }\n\n  function isSeparator(node) {\n    return node.nodeType === 8 && node.nodeValue === '%|%';\n  }\n\n  function isEmpty$1(node) {\n    return node.nodeType === 8 && node.nodeValue === '% %';\n  }\n\n  function isSameNodeType(candidate, tag) {\n    if (candidate.namespaceURI === \"http://www.w3.org/2000/svg\"\n    /* SVG */\n    ) {\n        return candidate.tagName === tag;\n      }\n\n    return candidate.tagName === tag.toUpperCase();\n  }\n\n  function findByName(array, name) {\n    for (var i = 0; i < array.length; i++) {\n      var attr = array[i];\n      if (attr.name === name) return attr;\n    }\n\n    return undefined;\n  }\n\n  function rehydrationBuilder(env, cursor) {\n    return RehydrateBuilder.forInitialRender(env, cursor);\n  }\n});","define(\"@glimmer/util\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.assertNever = assertNever;\n  _exports.assert = debugAssert;\n  _exports.deprecate = deprecate;\n  _exports.dict = dict;\n  _exports.isDict = isDict;\n  _exports.isObject = isObject;\n  _exports.ensureGuid = ensureGuid;\n  _exports.initializeGuid = initializeGuid;\n  _exports.isSerializationFirstNode = isSerializationFirstNode;\n  _exports.assign = assign;\n  _exports.fillNulls = fillNulls;\n  _exports.values = values;\n  _exports.isDestroyable = isDestroyable;\n  _exports.isStringDestroyable = isStringDestroyable;\n  _exports.clearElement = clearElement;\n  _exports.isDrop = isDrop;\n  _exports.associate = associate;\n  _exports.associateDestructor = associateDestructor;\n  _exports.peekAssociated = peekAssociated;\n  _exports.takeAssociated = takeAssociated;\n  _exports.willDestroyAssociated = willDestroyAssociated;\n  _exports.didDestroyAssociated = didDestroyAssociated;\n  _exports.destructor = destructor;\n  _exports.snapshot = snapshot;\n  _exports.debugDropTree = debugDropTree;\n  _exports.printDropTree = printDropTree;\n  _exports.printDrop = printDrop;\n  _exports.keys = keys;\n  _exports.unwrap = unwrap;\n  _exports.expect = expect;\n  _exports.unreachable = unreachable;\n  _exports.exhausted = exhausted;\n  _exports.strip = strip;\n  _exports.encodeImmediate = encodeImmediate;\n  _exports.decodeImmediate = decodeImmediate;\n  _exports.isSmallInt = isSmallInt;\n  _exports.isHandle = isHandle;\n  _exports.encodeHandle = encodeHandle;\n  _exports.decodeHandle = decodeHandle;\n  _exports.unwrapHandle = unwrapHandle;\n  _exports.unwrapTemplate = unwrapTemplate;\n  _exports.extractHandle = extractHandle;\n  _exports.isOkHandle = isOkHandle;\n  _exports.isErrHandle = isErrHandle;\n  _exports.symbol = _exports.tuple = _exports.ListContentsDestructor = _exports.DESTRUCTORS = _exports.CHILDREN = _exports.DID_DROP = _exports.WILL_DROP = _exports.LINKED = _exports.DESTROY = _exports.debugToString = _exports.ListSlice = _exports.ListNode = _exports.LinkedList = _exports.EMPTY_SLICE = _exports.SERIALIZATION_FIRST_NODE_STRING = _exports.Stack = _exports.DictSet = _exports.EMPTY_ARRAY = void 0;\n  var EMPTY_ARRAY = Object.freeze([]); // import Logger from './logger';\n  // let alreadyWarned = false;\n\n  _exports.EMPTY_ARRAY = EMPTY_ARRAY;\n\n  function debugAssert(test, msg) {\n    // if (!alreadyWarned) {\n    //   alreadyWarned = true;\n    //   Logger.warn(\"Don't leave debug assertions on in public builds\");\n    // }\n    if (!test) {\n      throw new Error(msg || 'assertion failure');\n    }\n  }\n\n  function deprecate(desc) {\n    console.warn(`DEPRECATION: ${desc}`);\n  }\n\n  var GUID = 0;\n\n  function initializeGuid(object) {\n    return object._guid = ++GUID;\n  }\n\n  function ensureGuid(object) {\n    return object._guid || initializeGuid(object);\n  }\n\n  function dict() {\n    return Object.create(null);\n  }\n\n  function isDict(u) {\n    return u !== null && u !== undefined;\n  }\n\n  function isObject(u) {\n    return typeof u === 'object' && u !== null;\n  }\n\n  class DictSet {\n    constructor() {\n      this.dict = dict();\n    }\n\n    add(obj) {\n      if (typeof obj === 'string') this.dict[obj] = obj;else this.dict[ensureGuid(obj)] = obj;\n      return this;\n    }\n\n    delete(obj) {\n      if (typeof obj === 'string') delete this.dict[obj];else if (obj._guid) delete this.dict[obj._guid];\n    }\n\n  }\n\n  _exports.DictSet = DictSet;\n\n  class StackImpl {\n    constructor() {\n      this.stack = [];\n      this.current = null;\n    }\n\n    get size() {\n      return this.stack.length;\n    }\n\n    push(item) {\n      this.current = item;\n      this.stack.push(item);\n    }\n\n    pop() {\n      var item = this.stack.pop();\n      var len = this.stack.length;\n      this.current = len === 0 ? null : this.stack[len - 1];\n      return item === undefined ? null : item;\n    }\n\n    nth(from) {\n      var len = this.stack.length;\n      return len < from ? null : this.stack[len - from];\n    }\n\n    isEmpty() {\n      return this.stack.length === 0;\n    }\n\n    toArray() {\n      return this.stack;\n    }\n\n  }\n\n  _exports.Stack = StackImpl;\n\n  function keys(obj) {\n    return Object.keys(obj);\n  }\n\n  function unwrap(val) {\n    if (val === null || val === undefined) throw new Error(`Expected value to be present`);\n    return val;\n  }\n\n  function expect(val, message) {\n    if (val === null || val === undefined) throw new Error(message);\n    return val;\n  }\n\n  function unreachable(message = 'unreachable') {\n    return new Error(message);\n  }\n\n  function exhausted(value) {\n    throw new Error(`Exhausted ${value}`);\n  }\n\n  var tuple = (...args) => args;\n\n  _exports.tuple = tuple;\n  var symbol = typeof Symbol !== 'undefined' ? Symbol : key => `__${key}${Math.floor(Math.random() * Date.now())}__`;\n  _exports.symbol = symbol;\n  var DESTROY = symbol('DESTROY');\n  _exports.DESTROY = DESTROY;\n\n  function isDestroyable(value) {\n    return !!(value && value[DESTROY] !== undefined);\n  }\n\n  function isStringDestroyable(value) {\n    return !!(value && typeof value === 'object' && typeof value.destroy === 'function');\n  }\n\n  function clearElement(parent) {\n    var current = parent.firstChild;\n\n    while (current) {\n      var next = current.nextSibling;\n      parent.removeChild(current);\n      current = next;\n    }\n  }\n\n  var SERIALIZATION_FIRST_NODE_STRING = '%+b:0%';\n  _exports.SERIALIZATION_FIRST_NODE_STRING = SERIALIZATION_FIRST_NODE_STRING;\n\n  function isSerializationFirstNode(node) {\n    return node.nodeValue === SERIALIZATION_FIRST_NODE_STRING;\n  }\n\n  var LINKED = new WeakMap();\n  _exports.LINKED = LINKED;\n  var WILL_DROP = symbol('WILL_DROP');\n  _exports.WILL_DROP = WILL_DROP;\n  var DID_DROP = symbol('DID_DROP');\n  _exports.DID_DROP = DID_DROP;\n  var CHILDREN = symbol('CHILDREN');\n  _exports.CHILDREN = CHILDREN;\n  var DESTRUCTORS = new WeakMap();\n  _exports.DESTRUCTORS = DESTRUCTORS;\n\n  function isDrop(value) {\n    if (value === null || typeof value !== 'object') return false;\n    return value[DID_DROP] !== undefined;\n  }\n\n  function associate(parent, child) {\n    associateDestructor(parent, destructor(child));\n  }\n\n  function associateDestructor(parent, child) {\n    var associated = LINKED.get(parent);\n\n    if (!associated) {\n      associated = new Set();\n      LINKED.set(parent, associated);\n    }\n\n    associated.add(child);\n  }\n\n  function peekAssociated(parent) {\n    return LINKED.get(parent) || null;\n  }\n\n  function takeAssociated(parent) {\n    var linked = LINKED.get(parent);\n\n    if (linked && linked.size > 0) {\n      LINKED.delete(parent);\n      return linked;\n    } else {\n      return null;\n    }\n  }\n\n  function willDestroyAssociated(parent) {\n    var associated = LINKED.get(parent);\n\n    if (associated) {\n      associated.forEach(item => {\n        item[WILL_DROP]();\n      });\n    }\n  }\n\n  function didDestroyAssociated(parent) {\n    var associated = LINKED.get(parent);\n\n    if (associated) {\n      associated.forEach(item => {\n        item[DID_DROP]();\n        associated.delete(item);\n      });\n    }\n  }\n\n  function destructor(value) {\n    var d = DESTRUCTORS.get(value);\n\n    if (!d) {\n      if (isDestroyable(value)) {\n        d = new DestroyableDestructor(value);\n      } else if (isStringDestroyable(value)) {\n        d = new StringDestroyableDestructor(value);\n      } else {\n        d = new SimpleDestructor(value);\n      }\n\n      DESTRUCTORS.set(value, d);\n    }\n\n    return d;\n  }\n\n  function snapshot(values) {\n    return new SnapshotDestructor(values);\n  }\n\n  class SnapshotDestructor {\n    constructor(destructors) {\n      this.destructors = destructors;\n    }\n\n    [WILL_DROP]() {\n      this.destructors.forEach(item => item[WILL_DROP]());\n    }\n\n    [DID_DROP]() {\n      this.destructors.forEach(item => item[DID_DROP]());\n    }\n\n    get [CHILDREN]() {\n      return this.destructors;\n    }\n\n    toString() {\n      return 'SnapshotDestructor';\n    }\n\n  }\n\n  class DestroyableDestructor {\n    constructor(inner) {\n      this.inner = inner;\n    }\n\n    [WILL_DROP]() {\n      willDestroyAssociated(this.inner);\n    }\n\n    [DID_DROP]() {\n      this.inner[DESTROY]();\n      didDestroyAssociated(this.inner);\n    }\n\n    get [CHILDREN]() {\n      return LINKED.get(this.inner) || [];\n    }\n\n    toString() {\n      return 'DestroyableDestructor';\n    }\n\n  }\n\n  class StringDestroyableDestructor {\n    constructor(inner) {\n      this.inner = inner;\n    }\n\n    [WILL_DROP]() {\n      if (typeof this.inner.willDestroy === 'function') {\n        this.inner.willDestroy();\n      }\n\n      willDestroyAssociated(this.inner);\n    }\n\n    [DID_DROP]() {\n      this.inner.destroy();\n      didDestroyAssociated(this.inner);\n    }\n\n    get [CHILDREN]() {\n      return LINKED.get(this.inner) || [];\n    }\n\n    toString() {\n      return 'StringDestroyableDestructor';\n    }\n\n  }\n\n  class SimpleDestructor {\n    constructor(inner) {\n      this.inner = inner;\n    }\n\n    [WILL_DROP]() {\n      willDestroyAssociated(this.inner);\n    }\n\n    [DID_DROP]() {\n      didDestroyAssociated(this.inner);\n    }\n\n    get [CHILDREN]() {\n      return LINKED.get(this.inner) || [];\n    }\n\n    toString() {\n      return 'SimpleDestructor';\n    }\n\n  }\n\n  class ListContentsDestructor {\n    constructor(inner) {\n      this.inner = inner;\n    }\n\n    [WILL_DROP]() {\n      this.inner.forEachNode(d => destructor(d)[WILL_DROP]());\n    }\n\n    [DID_DROP]() {\n      this.inner.forEachNode(d => destructor(d)[DID_DROP]());\n    }\n\n    get [CHILDREN]() {\n      var out = [];\n      this.inner.forEachNode(d => out.push(...destructor(d)[CHILDREN]));\n      return out;\n    }\n\n    toString() {\n      return 'ListContentsDestructor';\n    }\n\n  }\n\n  _exports.ListContentsDestructor = ListContentsDestructor;\n\n  function debugDropTree(inner) {\n    var hasDrop = isDrop(inner);\n    var rawChildren = LINKED.get(inner) || null;\n    var children = null;\n\n    if (rawChildren) {\n      children = [];\n\n      for (var child of rawChildren) {\n        children.push(debugDropTree(child));\n      }\n    }\n\n    var obj = Object.create(null);\n    obj.inner = inner;\n\n    if (children) {\n      obj.children = children;\n    }\n\n    obj.hasDrop = hasDrop;\n    return obj;\n  }\n\n  function printDropTree(inner) {\n    printDrop(destructor(inner));\n  }\n\n  function printDrop(inner) {\n    console.group(String(inner));\n    console.log(inner);\n    var children = inner[CHILDREN] || null;\n\n    if (children) {\n      for (var child of children) {\n        printDrop(child);\n      }\n    }\n\n    console.groupEnd();\n  }\n\n  class ListNode {\n    constructor(value) {\n      this.next = null;\n      this.prev = null;\n      this.value = value;\n    }\n\n  }\n\n  _exports.ListNode = ListNode;\n\n  class LinkedList {\n    constructor() {\n      this.clear();\n    }\n\n    head() {\n      return this._head;\n    }\n\n    tail() {\n      return this._tail;\n    }\n\n    clear() {\n      this._head = this._tail = null;\n    }\n\n    toArray() {\n      var out = [];\n      this.forEachNode(n => out.push(n));\n      return out;\n    }\n\n    nextNode(node) {\n      return node.next;\n    }\n\n    forEachNode(callback) {\n      var node = this._head;\n\n      while (node !== null) {\n        callback(node);\n        node = node.next;\n      }\n    }\n\n    insertBefore(node, reference = null) {\n      if (reference === null) return this.append(node);\n      if (reference.prev) reference.prev.next = node;else this._head = node;\n      node.prev = reference.prev;\n      node.next = reference;\n      reference.prev = node;\n      return node;\n    }\n\n    append(node) {\n      var tail = this._tail;\n\n      if (tail) {\n        tail.next = node;\n        node.prev = tail;\n        node.next = null;\n      } else {\n        this._head = node;\n      }\n\n      return this._tail = node;\n    }\n\n    remove(node) {\n      if (node.prev) node.prev.next = node.next;else this._head = node.next;\n      if (node.next) node.next.prev = node.prev;else this._tail = node.prev;\n      return node;\n    }\n\n    [WILL_DROP]() {\n      this.forEachNode(d => destructor(d)[WILL_DROP]());\n    }\n\n    [DID_DROP]() {\n      this.forEachNode(d => destructor(d)[DID_DROP]());\n    }\n\n    get [CHILDREN]() {\n      var out = [];\n      this.forEachNode(d => out.push(...destructor(d)[CHILDREN]));\n      return out;\n    }\n\n  }\n\n  _exports.LinkedList = LinkedList;\n\n  class ListSlice {\n    constructor(head, tail) {\n      this._head = head;\n      this._tail = tail;\n    }\n\n    forEachNode(callback) {\n      var node = this._head;\n\n      while (node !== null) {\n        callback(node);\n        node = this.nextNode(node);\n      }\n    }\n\n    head() {\n      return this._head;\n    }\n\n    tail() {\n      return this._tail;\n    }\n\n    toArray() {\n      var out = [];\n      this.forEachNode(n => out.push(n));\n      return out;\n    }\n\n    nextNode(node) {\n      if (node === this._tail) return null;\n      return node.next;\n    }\n\n  }\n\n  _exports.ListSlice = ListSlice;\n  var EMPTY_SLICE = new ListSlice(null, null);\n  _exports.EMPTY_SLICE = EMPTY_SLICE;\n  var {\n    keys: objKeys\n  } = Object;\n\n  function assign(obj) {\n    for (var i = 1; i < arguments.length; i++) {\n      var assignment = arguments[i];\n      if (assignment === null || typeof assignment !== 'object') continue;\n\n      var _keys = objKeys(assignment);\n\n      for (var j = 0; j < _keys.length; j++) {\n        var key = _keys[j];\n        obj[key] = assignment[key];\n      }\n    }\n\n    return obj;\n  }\n\n  function fillNulls(count) {\n    var arr = new Array(count);\n\n    for (var i = 0; i < count; i++) {\n      arr[i] = null;\n    }\n\n    return arr;\n  }\n\n  function values(obj) {\n    var vals = [];\n\n    for (var key in obj) {\n      vals.push(obj[key]);\n    }\n\n    return vals;\n  }\n\n  function strip(strings, ...args) {\n    var out = '';\n\n    for (var i = 0; i < strings.length; i++) {\n      var string = strings[i];\n      var dynamic = args[i] !== undefined ? String(args[i]) : '';\n      out += `${string}${dynamic}`;\n    }\n\n    var lines = out.split('\\n');\n\n    while (lines.length && lines[0].match(/^\\s*$/)) {\n      lines.shift();\n    }\n\n    while (lines.length && lines[lines.length - 1].match(/^\\s*$/)) {\n      lines.pop();\n    }\n\n    var min = Infinity;\n\n    for (var line of lines) {\n      var leading = line.match(/^\\s*/)[0].length;\n      min = Math.min(min, leading);\n    }\n\n    var stripped = [];\n\n    for (var _line of lines) {\n      stripped.push(_line.slice(min));\n    }\n\n    return stripped.join('\\n');\n  }\n  /**\n   * Encodes a value that can be stored directly instead of being a handle.\n   *\n   * Immediates use the positive half of 32bits\n   *\n   * @param value - the value to be encoded.\n   */\n\n\n  function encodeImmediate(value) {\n    if (typeof value === 'number') {\n      // 1073741827 - (-1) == 1073741828\n      // 1073741827 - (-1073741820) == 2147483647\n      // positive it stays as is\n      // 0 - 1073741823\n      return value < 0 ? 1073741827\n      /* NEGATIVE_BASE */\n      - value : value;\n    }\n\n    if (value === false) {\n      return 1073741824\n      /* FALSE */\n      ;\n    }\n\n    if (value === true) {\n      return 1073741825\n      /* TRUE */\n      ;\n    }\n\n    if (value === null) {\n      return 1073741826\n      /* NULL */\n      ;\n    }\n\n    if (value === undefined) {\n      return 1073741827\n      /* UNDEFINED */\n      ;\n    }\n\n    return exhausted(value);\n  }\n  /**\n   * Decodes an immediate into its value.\n   *\n   * @param value - the encoded immediate value\n   */\n\n\n  function decodeImmediate(value) {\n    if (value > 1073741823\n    /* MAX_INT */\n    ) {\n        switch (value) {\n          case 1073741824\n          /* FALSE */\n          :\n            return false;\n\n          case 1073741825\n          /* TRUE */\n          :\n            return true;\n\n          case 1073741826\n          /* NULL */\n          :\n            return null;\n\n          case 1073741827\n          /* UNDEFINED */\n          :\n            return undefined;\n\n          default:\n            // map 1073741828 to 2147483647 to -1 to -1073741820\n            // 1073741827 - 1073741828 == -1\n            // 1073741827 - 2147483647 == -1073741820\n            return 1073741827\n            /* NEGATIVE_BASE */\n            - value;\n        }\n      }\n\n    return value;\n  }\n  /**\n   * True if the number can be stored directly or false if it needs a handle.\n   *\n   * This is used on any number type to see if it can be directly encoded.\n   */\n\n\n  function isSmallInt(num) {\n    return isInt(num, -1073741820\n    /* MIN_INT */\n    , 1073741823\n    /* MAX_INT */\n    );\n  }\n  /**\n   * True if the encoded int32 operand or encoded stack int32 is a handle.\n   */\n\n\n  function isHandle(encoded) {\n    return encoded < 0;\n  }\n  /**\n   * Encodes an index to an operand or stack handle.\n   */\n\n\n  function encodeHandle(index, maxIndex = 2147483647\n  /* MAX_INDEX */\n  , maxHandle = -1\n  /* MAX_HANDLE */\n  ) {\n    if (index > maxIndex) {\n      throw new Error(`index ${index} overflowed range 0 to ${maxIndex}`);\n    } // -1 - 0 == -1\n    // -1 - 1073741823 == -1073741824\n    // -1073741825 - 0 == -1073741825\n    // -1073741825 - 1073741823 == -2147483648\n\n\n    return maxHandle - index;\n  }\n  /**\n   * Decodes the index from the specified operand or stack handle.\n   */\n\n\n  function decodeHandle(handle, maxHandle = -1\n  /* MAX_HANDLE */\n  ) {\n    // -1 - -1073741824 == 1073741823\n    // -1073741825 - -1073741825 == 0\n    // -1073741825 - -2147483648 == 1073741823\n    return maxHandle - handle;\n  }\n\n  function isInt(num, min, max) {\n    // this is the same as Math.floor(num) === num\n    // also NaN % 1 is NaN and Infinity % 1 is NaN so both should fail\n    return num % 1 === 0 && num >= min && num <= max;\n  }\n\n  function unwrapHandle(handle) {\n    if (typeof handle === 'number') {\n      return handle;\n    } else {\n      var error = handle.errors[0];\n      throw new Error(`Compile Error: ${error.problem} @ ${error.span.start}..${error.span.end}`);\n    }\n  }\n\n  function unwrapTemplate(template) {\n    if (template.result === 'error') {\n      throw new Error(`Compile Error: ${template.problem} @ ${template.span.start}..${template.span.end}`);\n    }\n\n    return template;\n  }\n\n  function extractHandle(handle) {\n    if (typeof handle === 'number') {\n      return handle;\n    } else {\n      return handle.handle;\n    }\n  }\n\n  function isOkHandle(handle) {\n    return typeof handle === 'number';\n  }\n\n  function isErrHandle(handle) {\n    return typeof handle === 'number';\n  }\n\n  var debugToString;\n\n  if (true\n  /* DEBUG */\n  ) {\n    var getFunctionName = fn => {\n      var functionName = fn.name;\n\n      if (functionName === undefined) {\n        var match = Function.prototype.toString.call(fn).match(/function (\\w+)\\s*\\(/);\n        functionName = match && match[1] || '';\n      }\n\n      return functionName.replace(/^bound /, '');\n    };\n\n    var getObjectName = obj => {\n      var name;\n      var className;\n\n      if (obj.constructor && obj.constructor !== Object) {\n        className = getFunctionName(obj.constructor);\n      }\n\n      if ('toString' in obj && obj.toString !== Object.prototype.toString && obj.toString !== Function.prototype.toString) {\n        name = obj.toString();\n      } // If the class has a decent looking name, and the `toString` is one of the\n      // default Ember toStrings, replace the constructor portion of the toString\n      // with the class name. We check the length of the class name to prevent doing\n      // this when the value is minified.\n\n\n      if (name && name.match(/<.*:ember\\d+>/) && className && className[0] !== '_' && className.length > 2 && className !== 'Class') {\n        return name.replace(/<.*:/, `<${className}:`);\n      }\n\n      return name || className;\n    };\n\n    var getPrimitiveName = value => {\n      return String(value);\n    };\n\n    debugToString = value => {\n      if (typeof value === 'function') {\n        return getFunctionName(value) || `(unknown function)`;\n      } else if (typeof value === 'object' && value !== null) {\n        return getObjectName(value) || `(unknown object)`;\n      } else {\n        return getPrimitiveName(value);\n      }\n    };\n  }\n\n  var debugToString$1 = debugToString;\n  _exports.debugToString = debugToString$1;\n\n  function assertNever(value, desc = 'unexpected unreachable branch') {\n    console.log('unreachable', value);\n    console.trace(`${desc} :: ${JSON.stringify(value)} (${value})`);\n  }\n});","define(\"@glimmer/validator\", [\"exports\", \"@ember/polyfills\"], function (_exports, _polyfills) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.bump = bump;\n  _exports.combine = combine;\n  _exports.createCombinatorTag = createCombinatorTag;\n  _exports.createTag = createTag;\n  _exports.createUpdatableTag = createUpdatableTag;\n  _exports.isConst = isConst;\n  _exports.isConstTag = isConstTag;\n  _exports.validateTag = validateTag;\n  _exports.valueForTag = valueForTag;\n  _exports.dirtyTagFor = dirtyTagFor;\n  _exports.tagFor = tagFor;\n  _exports.setPropertyDidChange = setPropertyDidChange;\n  _exports.beginTrackFrame = beginTrackFrame;\n  _exports.endTrackFrame = endTrackFrame;\n  _exports.consumeTag = consumeTag;\n  _exports.isTracking = isTracking;\n  _exports.track = track;\n  _exports.trackedData = trackedData;\n  _exports.memoizeTracked = memoizeTracked;\n  _exports.untrack = untrack;\n  _exports.isConstMemo = isConstMemo;\n  _exports.deprecateMutationsInAutotrackingTransaction = _exports.runInAutotrackingTransaction = _exports.setAutotrackingTransactionEnv = _exports.EPOCH = _exports.VOLATILE = _exports.VOLATILE_TAG = _exports.VolatileTag = _exports.updateTag = _exports.INITIAL = _exports.dirtyTag = _exports.CURRENT_TAG = _exports.CurrentTag = _exports.CONSTANT = _exports.CONSTANT_TAG = _exports.COMPUTE = _exports.ALLOW_CYCLES = void 0;\n  // This is a duplicate utility from @glimmer/util because `@glimmer/validator`\n  // should not depend on any other @glimmer packages, in order to avoid pulling\n  // in types and prevent regressions in `@glimmer/tracking` (which has public types).\n  var symbol = typeof Symbol !== 'undefined' ? Symbol : key => `__${key}${Math.floor(Math.random() * Date.now())}__`;\n  var runInAutotrackingTransaction;\n  _exports.runInAutotrackingTransaction = runInAutotrackingTransaction;\n  var deprecateMutationsInAutotrackingTransaction;\n  _exports.deprecateMutationsInAutotrackingTransaction = deprecateMutationsInAutotrackingTransaction;\n  var setAutotrackingTransactionEnv;\n  _exports.setAutotrackingTransactionEnv = setAutotrackingTransactionEnv;\n  var assertTagNotConsumed;\n  var markTagAsConsumed;\n\n  if (true\n  /* DEBUG */\n  ) {\n    var DEPRECATE_IN_AUTOTRACKING_TRANSACTION = false;\n    var AUTOTRACKING_TRANSACTION = null;\n    var debuggingContexts = []; /////////\n\n    var TRANSACTION_ENV = {\n      assert(message) {\n        throw new Error(message);\n      },\n\n      deprecate(message) {\n        console.warn(message);\n      },\n\n      debugMessage(obj, keyName) {\n        var objName;\n\n        if (typeof obj === 'function') {\n          objName = obj.name;\n        } else if (typeof obj === 'object' && obj !== null) {\n          var className = obj.constructor && obj.constructor.name || '(unknown class)';\n          objName = `(an instance of ${className})`;\n        } else if (obj === undefined) {\n          objName = '(an unknown tag)';\n        } else {\n          objName = String(obj);\n        }\n\n        var dirtyString = keyName ? `\\`${keyName}\\` on \\`${objName}\\`` : `\\`${objName}\\``;\n        return `You attempted to update ${dirtyString}, but it had already been used previously in the same computation.  Attempting to update a value after using it in a computation can cause logical errors, infinite revalidation bugs, and performance issues, and is not supported.`;\n      }\n\n    };\n\n    _exports.setAutotrackingTransactionEnv = setAutotrackingTransactionEnv = env => (0, _polyfills.assign)(TRANSACTION_ENV, env);\n    /**\n     * Creates a global autotracking transaction. This will prevent any backflow\n     * in any `track` calls within the transaction, even if they are not\n     * externally consumed.\n     *\n     * `runInAutotrackingTransaction` can be called within itself, and it will add\n     * onto the existing transaction if one exists.\n     *\n     * TODO: Only throw an error if the `track` is consumed.\n     */\n\n\n    _exports.runInAutotrackingTransaction = runInAutotrackingTransaction = (fn, debuggingContext) => {\n      var previousDeprecateState = DEPRECATE_IN_AUTOTRACKING_TRANSACTION;\n      var previousTransactionState = AUTOTRACKING_TRANSACTION;\n      DEPRECATE_IN_AUTOTRACKING_TRANSACTION = false;\n\n      if (previousTransactionState === null) {\n        // if there was no transaction start it. Otherwise, the transaction already exists.\n        AUTOTRACKING_TRANSACTION = new WeakMap();\n      }\n\n      if (debuggingContext) {\n        debuggingContexts.unshift(debuggingContext);\n      }\n\n      try {\n        fn();\n      } finally {\n        if (debuggingContext) {\n          debuggingContexts.shift();\n        }\n\n        DEPRECATE_IN_AUTOTRACKING_TRANSACTION = previousDeprecateState;\n        AUTOTRACKING_TRANSACTION = previousTransactionState;\n      }\n    };\n    /**\n     * Switches to deprecating within an autotracking transaction, if one exists.\n     * If `runInAutotrackingTransaction` is called within the callback of this\n     * method, it switches back to throwing an error, allowing zebra-striping of\n     * the types of errors that are thrown.\n     *\n     * Does not start an autotracking transaction.\n     *\n     * NOTE: For Ember usage only, in general you should assert that these\n     * invariants are true.\n     */\n\n\n    _exports.deprecateMutationsInAutotrackingTransaction = deprecateMutationsInAutotrackingTransaction = fn => {\n      var previousDeprecateState = DEPRECATE_IN_AUTOTRACKING_TRANSACTION;\n      DEPRECATE_IN_AUTOTRACKING_TRANSACTION = true;\n\n      try {\n        fn();\n      } finally {\n        DEPRECATE_IN_AUTOTRACKING_TRANSACTION = previousDeprecateState;\n      }\n    };\n\n    var nthIndex = (str, pattern, n, startingPos = -1) => {\n      var i = startingPos;\n\n      while (n-- > 0 && i++ < str.length) {\n        i = str.indexOf(pattern, i);\n        if (i < 0) break;\n      }\n\n      return i;\n    };\n\n    var makeAutotrackingErrorMessage = (sourceData, obj, keyName) => {\n      var message = [TRANSACTION_ENV.debugMessage(obj, keyName && String(keyName))];\n\n      if (sourceData.context) {\n        message.push(`\\`${String(keyName)}\\` was first used:\\n\\n${sourceData.context}`);\n      }\n\n      message.push(`Stack trace for the update:`);\n      return message.join('\\n\\n');\n    };\n\n    markTagAsConsumed = _tag => {\n      if (!AUTOTRACKING_TRANSACTION || AUTOTRACKING_TRANSACTION.has(_tag)) return;\n      AUTOTRACKING_TRANSACTION.set(_tag, {\n        context: debuggingContexts.map(c => c.replace(/^/gm, '  ').replace(/^ /, '-')).join('\\n\\n')\n      }); // We need to mark the tag and all of its subtags as consumed, so we need to\n      // cast it and access its internals. In the future this shouldn't be necessary,\n      // this is only for computed properties.\n\n      var tag = _tag;\n\n      if (tag.subtag) {\n        markTagAsConsumed(tag.subtag);\n      }\n\n      if (tag.subtags) {\n        tag.subtags.forEach(tag => markTagAsConsumed(tag));\n      }\n    };\n\n    assertTagNotConsumed = (tag, obj, keyName, forceHardError = false) => {\n      if (AUTOTRACKING_TRANSACTION === null) return;\n      var sourceData = AUTOTRACKING_TRANSACTION.get(tag);\n      if (!sourceData) return;\n\n      if (DEPRECATE_IN_AUTOTRACKING_TRANSACTION && !forceHardError) {\n        TRANSACTION_ENV.deprecate(makeAutotrackingErrorMessage(sourceData, obj, keyName));\n      } else {\n        // This hack makes the assertion message nicer, we can cut off the first\n        // few lines of the stack trace and let users know where the actual error\n        // occurred.\n        try {\n          TRANSACTION_ENV.assert(makeAutotrackingErrorMessage(sourceData, obj, keyName));\n        } catch (e) {\n          if (e.stack) {\n            var updateStackBegin = e.stack.indexOf('Stack trace for the update:');\n\n            if (updateStackBegin !== -1) {\n              var start = nthIndex(e.stack, '\\n', 1, updateStackBegin);\n              var end = nthIndex(e.stack, '\\n', 4, updateStackBegin);\n              e.stack = e.stack.substr(0, start) + e.stack.substr(end);\n            }\n          }\n\n          throw e;\n        }\n      }\n    };\n  }\n\n  var CONSTANT = 0;\n  _exports.CONSTANT = CONSTANT;\n  var INITIAL = 1;\n  _exports.INITIAL = INITIAL;\n  var VOLATILE = 9007199254740991; // MAX_INT\n\n  _exports.VOLATILE = VOLATILE;\n  var $REVISION = INITIAL;\n\n  function bump() {\n    $REVISION++;\n  } //////////\n\n\n  var COMPUTE = symbol('TAG_COMPUTE'); //////////\n\n  /**\n   * `value` receives a tag and returns an opaque Revision based on that tag. This\n   * snapshot can then later be passed to `validate` with the same tag to\n   * determine if the tag has changed at all since the time that `value` was\n   * called.\n   *\n   * The current implementation returns the global revision count directly for\n   * performance reasons. This is an implementation detail, and should not be\n   * relied on directly by users of these APIs. Instead, Revisions should be\n   * treated as if they are opaque/unknown, and should only be interacted with via\n   * the `value`/`validate` API.\n   *\n   * @param tag\n   */\n\n  _exports.COMPUTE = COMPUTE;\n\n  function valueForTag(_tag) {\n    return $REVISION;\n  }\n  /**\n   * `validate` receives a tag and a snapshot from a previous call to `value` with\n   * the same tag, and determines if the tag is still valid compared to the\n   * snapshot. If the tag's state has changed at all since then, `validate` will\n   * return false, otherwise it will return true. This is used to determine if a\n   * calculation related to the tags should be rerun.\n   *\n   * @param tag\n   * @param snapshot\n   */\n\n\n  function validateTag(tag, snapshot) {\n    return snapshot >= tag[COMPUTE]();\n  }\n\n  var TYPE = symbol('TAG_TYPE');\n  var ALLOW_CYCLES;\n  _exports.ALLOW_CYCLES = ALLOW_CYCLES;\n\n  if (true\n  /* DEBUG */\n  ) {\n    _exports.ALLOW_CYCLES = ALLOW_CYCLES = new WeakMap();\n  }\n\n  class MonomorphicTagImpl {\n    constructor(type) {\n      this.revision = INITIAL;\n      this.lastChecked = INITIAL;\n      this.lastValue = INITIAL;\n      this.isUpdating = false;\n      this.subtags = null;\n      this.subtag = null;\n      this.subtagBufferCache = null;\n      this[TYPE] = type;\n    }\n\n    [COMPUTE]() {\n      var {\n        lastChecked\n      } = this;\n\n      if (this.isUpdating === true) {\n        if (true\n        /* DEBUG */\n        && !ALLOW_CYCLES.has(this)) {\n          throw new Error('Cycles in tags are not allowed');\n        }\n\n        this.lastChecked = ++$REVISION;\n      } else if (lastChecked !== $REVISION) {\n        this.isUpdating = true;\n        this.lastChecked = $REVISION;\n\n        try {\n          var {\n            subtags,\n            subtag,\n            subtagBufferCache,\n            lastValue,\n            revision\n          } = this;\n\n          if (subtag !== null) {\n            var subtagValue = subtag[COMPUTE]();\n\n            if (subtagValue === subtagBufferCache) {\n              revision = Math.max(revision, lastValue);\n            } else {\n              // Clear the temporary buffer cache\n              this.subtagBufferCache = null;\n              revision = Math.max(revision, subtagValue);\n            }\n          }\n\n          if (subtags !== null) {\n            for (var i = 0; i < subtags.length; i++) {\n              var value = subtags[i][COMPUTE]();\n              revision = Math.max(value, revision);\n            }\n          }\n\n          this.lastValue = revision;\n        } finally {\n          this.isUpdating = false;\n        }\n      }\n\n      return this.lastValue;\n    }\n\n    static updateTag(_tag, _subtag) {\n      if (true\n      /* DEBUG */\n      && _tag[TYPE] !== 1\n      /* Updatable */\n      ) {\n          throw new Error('Attempted to update a tag that was not updatable');\n        } // TODO: TS 3.7 should allow us to do this via assertion\n\n\n      var tag = _tag;\n      var subtag = _subtag;\n\n      if (subtag === CONSTANT_TAG) {\n        tag.subtag = null;\n      } else {\n        // There are two different possibilities when updating a subtag:\n        //\n        // 1. subtag[COMPUTE]() <= tag[COMPUTE]();\n        // 2. subtag[COMPUTE]() > tag[COMPUTE]();\n        //\n        // The first possibility is completely fine within our caching model, but\n        // the second possibility presents a problem. If the parent tag has\n        // already been read, then it's value is cached and will not update to\n        // reflect the subtag's greater value. Next time the cache is busted, the\n        // subtag's value _will_ be read, and it's value will be _greater_ than\n        // the saved snapshot of the parent, causing the resulting calculation to\n        // be rerun erroneously.\n        //\n        // In order to prevent this, when we first update to a new subtag we store\n        // its computed value, and then check against that computed value on\n        // subsequent updates. If its value hasn't changed, then we return the\n        // parent's previous value. Once the subtag changes for the first time,\n        // we clear the cache and everything is finally in sync with the parent.\n        tag.subtagBufferCache = subtag[COMPUTE]();\n        tag.subtag = subtag;\n      }\n    }\n\n    static dirtyTag(tag) {\n      if (true\n      /* DEBUG */\n      && !(tag[TYPE] === 1\n      /* Updatable */\n      || tag[TYPE] === 0\n      /* Dirtyable */\n      )) {\n        throw new Error('Attempted to dirty a tag that was not dirtyable');\n      }\n\n      if (true\n      /* DEBUG */\n      ) {\n        // Usually by this point, we've already asserted with better error information,\n        // but this is our last line of defense.\n        assertTagNotConsumed(tag);\n      }\n\n      tag.revision = ++$REVISION;\n    }\n\n  }\n\n  var dirtyTag = MonomorphicTagImpl.dirtyTag;\n  _exports.dirtyTag = dirtyTag;\n  var updateTag = MonomorphicTagImpl.updateTag; //////////\n\n  _exports.updateTag = updateTag;\n\n  function createTag() {\n    return new MonomorphicTagImpl(0\n    /* Dirtyable */\n    );\n  }\n\n  function createUpdatableTag() {\n    return new MonomorphicTagImpl(1\n    /* Updatable */\n    );\n  } //////////\n\n\n  var CONSTANT_TAG = new MonomorphicTagImpl(3\n  /* Constant */\n  );\n  _exports.CONSTANT_TAG = CONSTANT_TAG;\n\n  function isConst({\n    tag\n  }) {\n    return tag === CONSTANT_TAG;\n  }\n\n  function isConstTag(tag) {\n    return tag === CONSTANT_TAG;\n  } //////////\n\n\n  class VolatileTag {\n    [COMPUTE]() {\n      return VOLATILE;\n    }\n\n  }\n\n  _exports.VolatileTag = VolatileTag;\n  var VOLATILE_TAG = new VolatileTag(); //////////\n\n  _exports.VOLATILE_TAG = VOLATILE_TAG;\n\n  class CurrentTag {\n    [COMPUTE]() {\n      return $REVISION;\n    }\n\n  }\n\n  _exports.CurrentTag = CurrentTag;\n  var CURRENT_TAG = new CurrentTag(); //////////\n\n  _exports.CURRENT_TAG = CURRENT_TAG;\n\n  function combine(tags) {\n    var optimized = [];\n\n    for (var i = 0, l = tags.length; i < l; i++) {\n      var tag = tags[i];\n      if (tag === CONSTANT_TAG) continue;\n      optimized.push(tag);\n    }\n\n    return createCombinatorTag(optimized);\n  }\n\n  function createCombinatorTag(tags) {\n    switch (tags.length) {\n      case 0:\n        return CONSTANT_TAG;\n\n      case 1:\n        return tags[0];\n\n      default:\n        var tag = new MonomorphicTagImpl(2\n        /* Combinator */\n        );\n        tag.subtags = tags;\n        return tag;\n    }\n  }\n\n  var propertyDidChange = function () {};\n\n  function setPropertyDidChange(cb) {\n    propertyDidChange = cb;\n  }\n\n  function isObject(u) {\n    return typeof u === 'object' && u !== null || typeof u === 'function';\n  }\n\n  var TRACKED_TAGS = new WeakMap();\n\n  function dirtyTagFor(obj, key) {\n    if (isObject(obj)) {\n      var tags = TRACKED_TAGS.get(obj); // No tags have been setup for this object yet, return\n\n      if (tags === undefined) return; // Dirty the tag for the specific property if it exists\n\n      var propertyTag = tags.get(key);\n\n      if (propertyTag !== undefined) {\n        if (true\n        /* DEBUG */\n        ) {\n          assertTagNotConsumed(propertyTag, obj, key);\n        }\n\n        dirtyTag(propertyTag);\n        propertyDidChange();\n      }\n    } else {\n      throw new Error(`BUG: Can't update a tag for a primitive`);\n    }\n  }\n\n  function tagFor(obj, key) {\n    if (isObject(obj)) {\n      var tags = TRACKED_TAGS.get(obj);\n\n      if (tags === undefined) {\n        tags = new Map();\n        TRACKED_TAGS.set(obj, tags);\n      } else if (tags.has(key)) {\n        return tags.get(key);\n      }\n\n      var tag = createUpdatableTag();\n      tags.set(key, tag);\n      return tag;\n    } else {\n      return CONSTANT_TAG;\n    }\n  }\n  /**\n   * An object that that tracks @tracked properties that were consumed.\n   */\n\n\n  class Tracker {\n    constructor() {\n      this.tags = new Set();\n      this.last = null;\n    }\n\n    add(tag) {\n      this.tags.add(tag);\n\n      if (true\n      /* DEBUG */\n      ) {\n        markTagAsConsumed(tag);\n      }\n\n      this.last = tag;\n    }\n\n    combine() {\n      var {\n        tags\n      } = this;\n\n      if (tags.size === 0) {\n        return CONSTANT_TAG;\n      } else if (tags.size === 1) {\n        return this.last;\n      } else {\n        var tagsArr = [];\n        tags.forEach(tag => tagsArr.push(tag));\n        return combine(tagsArr);\n      }\n    }\n\n  }\n  /**\n   * Whenever a tracked computed property is entered, the current tracker is\n   * saved off and a new tracker is replaced.\n   *\n   * Any tracked properties consumed are added to the current tracker.\n   *\n   * When a tracked computed property is exited, the tracker's tags are\n   * combined and added to the parent tracker.\n   *\n   * The consequence is that each tracked computed property has a tag\n   * that corresponds to the tracked properties consumed inside of\n   * itself, including child tracked computed properties.\n   */\n\n\n  var CURRENT_TRACKER = null;\n  var OPEN_TRACK_FRAMES = [];\n\n  function beginTrackFrame() {\n    OPEN_TRACK_FRAMES.push(CURRENT_TRACKER);\n    CURRENT_TRACKER = new Tracker();\n  }\n\n  function endTrackFrame() {\n    var current = CURRENT_TRACKER;\n\n    if (true\n    /* DEBUG */\n    && OPEN_TRACK_FRAMES.length === 0) {\n      throw new Error('attempted to close a tracking frame, but one was not open');\n    }\n\n    CURRENT_TRACKER = OPEN_TRACK_FRAMES.pop();\n    return current.combine();\n  } //////////\n\n\n  var IS_CONST_MAP = new WeakMap();\n\n  function memoizeTracked(callback, debuggingContext) {\n    var lastValue;\n    var tag;\n    var snapshot;\n\n    var memoized = (...args) => {\n      if (!tag || !validateTag(tag, snapshot)) {\n        beginTrackFrame();\n\n        try {\n          if (true\n          /* DEBUG */\n          ) {\n            runInAutotrackingTransaction(() => lastValue = callback(...args), debuggingContext);\n          } else {\n            lastValue = callback(...args);\n          }\n        } finally {\n          tag = endTrackFrame();\n          snapshot = valueForTag(tag);\n          consumeTag(tag); // If the final tag is constant, then we know for sure that this\n          // memoized function can never change. There are times when this\n          // information is useful externally (i.e. in the append VM, it tells us\n          // whether or not to emit opcodes) so we expose it via a metadata weakmap.\n\n          if (tag === CONSTANT_TAG) {\n            IS_CONST_MAP.set(memoized, true);\n          } else if (true\n          /* DEBUG */\n          ) {\n            // In DEBUG, set the value to false explicitly. This way we can throw\n            // if someone attempts to call `isConst(memoized)` before running\n            // `memoized()` at least once.\n            IS_CONST_MAP.set(memoized, false);\n          }\n        }\n      } else {\n        consumeTag(tag);\n      }\n\n      return lastValue;\n    };\n\n    if (true\n    /* DEBUG */\n    ) {\n      IS_CONST_MAP.set(memoized, undefined);\n    }\n\n    return memoized;\n  }\n\n  function isConstMemo(memoized) {\n    if (true\n    /* DEBUG */\n    && IS_CONST_MAP.has(memoized) && IS_CONST_MAP.get(memoized) === undefined) {\n      throw new Error('Attempted to call `isConstMemo` on a memoized function, but the function has not been run at least once yet. You cannot know if a memoized function is constant or not until it has been run at least once. Call the function, then pass it to `isConstMemo`.');\n    }\n\n    return IS_CONST_MAP.get(memoized) === true;\n  } //////////\n\n\n  function track(callback, debuggingContext) {\n    beginTrackFrame();\n    var tag;\n\n    try {\n      if (true\n      /* DEBUG */\n      ) {\n        runInAutotrackingTransaction(callback, debuggingContext);\n      } else {\n        callback();\n      }\n    } finally {\n      tag = endTrackFrame();\n    }\n\n    return tag;\n  }\n\n  function consumeTag(tag) {\n    if (CURRENT_TRACKER !== null) {\n      CURRENT_TRACKER.add(tag);\n    }\n  }\n\n  function isTracking() {\n    return CURRENT_TRACKER !== null;\n  }\n\n  function untrack(callback) {\n    OPEN_TRACK_FRAMES.push(CURRENT_TRACKER);\n    CURRENT_TRACKER = null;\n\n    try {\n      callback();\n    } finally {\n      CURRENT_TRACKER = OPEN_TRACK_FRAMES.pop();\n    }\n  } //////////\n\n\n  var EPOCH = createTag();\n  _exports.EPOCH = EPOCH;\n\n  function trackedData(key, initializer) {\n    var values = new WeakMap();\n    var hasInitializer = typeof initializer === 'function';\n\n    function getter(self) {\n      consumeTag(tagFor(self, key));\n      var value; // If the field has never been initialized, we should initialize it\n\n      if (hasInitializer && !values.has(self)) {\n        value = initializer.call(self);\n        values.set(self, value);\n      } else {\n        value = values.get(self);\n      }\n\n      return value;\n    }\n\n    function setter(self, value) {\n      if (true\n      /* DEBUG */\n      ) {\n        assertTagNotConsumed(tagFor(self, key), self, key, true);\n      }\n\n      dirtyTag(EPOCH);\n      dirtyTagFor(self, key);\n      values.set(self, value);\n    }\n\n    return {\n      getter,\n      setter\n    };\n  }\n});","define(\"@glimmer/vm\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.isMachineOp = isMachineOp;\n  _exports.isOp = isOp;\n  _exports.isLowLevelRegister = isLowLevelRegister;\n  _exports.$v0 = _exports.$t1 = _exports.$t0 = _exports.$s1 = _exports.$s0 = _exports.$sp = _exports.$ra = _exports.$fp = _exports.$pc = _exports.TemporaryRegister = _exports.SavedRegister = void 0;\n\n  /* This file is generated by build/debug.js */\n  function isMachineOp(value) {\n    return value >= 0 && value <= 15;\n  }\n\n  function isOp(value) {\n    return value >= 16;\n  }\n  /**\n   * Registers\n   *\n   * For the most part, these follows MIPS naming conventions, however the\n   * register numbers are different.\n   */\n  // $0 or $pc (program counter): pointer into `program` for the next insturction; -1 means exit\n\n\n  var $pc = 0; // $1 or $ra (return address): pointer into `program` for the return\n\n  _exports.$pc = $pc;\n  var $ra = 1; // $2 or $fp (frame pointer): pointer into the `evalStack` for the base of the stack\n\n  _exports.$ra = $ra;\n  var $fp = 2; // $3 or $sp (stack pointer): pointer into the `evalStack` for the top of the stack\n\n  _exports.$fp = $fp;\n  var $sp = 3; // $4-$5 or $s0-$s1 (saved): callee saved general-purpose registers\n\n  _exports.$sp = $sp;\n  var $s0 = 4;\n  _exports.$s0 = $s0;\n  var $s1 = 5; // $6-$7 or $t0-$t1 (temporaries): caller saved general-purpose registers\n\n  _exports.$s1 = $s1;\n  var $t0 = 6;\n  _exports.$t0 = $t0;\n  var $t1 = 7; // $8 or $v0 (return value)\n\n  _exports.$t1 = $t1;\n  var $v0 = 8;\n  _exports.$v0 = $v0;\n\n  function isLowLevelRegister(register) {\n    return register <= $sp;\n  }\n\n  var SavedRegister;\n  _exports.SavedRegister = SavedRegister;\n\n  (function (SavedRegister) {\n    SavedRegister[SavedRegister[\"s0\"] = 4] = \"s0\";\n    SavedRegister[SavedRegister[\"s1\"] = 5] = \"s1\";\n  })(SavedRegister || (_exports.SavedRegister = SavedRegister = {}));\n\n  var TemporaryRegister;\n  _exports.TemporaryRegister = TemporaryRegister;\n\n  (function (TemporaryRegister) {\n    TemporaryRegister[TemporaryRegister[\"t0\"] = 6] = \"t0\";\n    TemporaryRegister[TemporaryRegister[\"t1\"] = 7] = \"t1\";\n  })(TemporaryRegister || (_exports.TemporaryRegister = TemporaryRegister = {}));\n});","define(\"@glimmer/wire-format\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.is = is;\n  _exports.isAttribute = isAttribute;\n  _exports.isArgument = isArgument;\n  _exports.isHelper = isHelper;\n  _exports.isGet = _exports.isFlushElement = void 0;\n\n  function is(variant) {\n    return function (value) {\n      return Array.isArray(value) && value[0] === variant;\n    };\n  } // Statements\n\n\n  var isFlushElement = is(12\n  /* FlushElement */\n  );\n  _exports.isFlushElement = isFlushElement;\n\n  function isAttribute(val) {\n    return val[0] === 14\n    /* StaticAttr */\n    || val[0] === 15\n    /* DynamicAttr */\n    || val[0] === 22\n    /* TrustingDynamicAttr */\n    || val[0] === 16\n    /* ComponentAttr */\n    || val[0] === 24\n    /* StaticComponentAttr */\n    || val[0] === 23\n    /* TrustingComponentAttr */\n    || val[0] === 17\n    /* AttrSplat */\n    || val[0] === 4\n    /* Modifier */\n    ;\n  }\n\n  function isArgument(val) {\n    return val[0] === 21\n    /* StaticArg */\n    || val[0] === 20\n    /* DynamicArg */\n    ;\n  }\n\n  function isHelper(expr) {\n    return Array.isArray(expr) && expr[0] === 30\n    /* Call */\n    ;\n  } // Expressions\n\n\n  var isGet = is(32\n  /* GetSymbol */\n  );\n  _exports.isGet = isGet;\n});","define(\"@simple-dom/document\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n  var EMPTY_ATTRS = [];\n\n  function indexOfAttribute(attributes, namespaceURI, localName) {\n    for (var i = 0; i < attributes.length; i++) {\n      var attr = attributes[i];\n\n      if (attr.namespaceURI === namespaceURI && attr.localName === localName) {\n        return i;\n      }\n    }\n\n    return -1;\n  }\n\n  function adjustAttrName(namespaceURI, localName) {\n    return namespaceURI === \"http://www.w3.org/1999/xhtml\"\n    /* HTML */\n    ? localName.toLowerCase() : localName;\n  }\n\n  function getAttribute(attributes, namespaceURI, localName) {\n    var index = indexOfAttribute(attributes, namespaceURI, localName);\n    return index === -1 ? null : attributes[index].value;\n  }\n\n  function removeAttribute(attributes, namespaceURI, localName) {\n    var index = indexOfAttribute(attributes, namespaceURI, localName);\n\n    if (index !== -1) {\n      attributes.splice(index, 1);\n    }\n  } // https://dom.spec.whatwg.org/#dom-element-setattributens\n\n\n  function setAttribute(element, namespaceURI, prefix, localName, value) {\n    if (typeof value !== 'string') {\n      value = '' + value;\n    }\n\n    var {\n      attributes\n    } = element;\n\n    if (attributes === EMPTY_ATTRS) {\n      attributes = element.attributes = [];\n    } else {\n      var index = indexOfAttribute(attributes, namespaceURI, localName);\n\n      if (index !== -1) {\n        attributes[index].value = value;\n        return;\n      }\n    }\n\n    attributes.push({\n      localName,\n      name: prefix === null ? localName : prefix + ':' + localName,\n      namespaceURI,\n      prefix,\n      specified: true,\n      value\n    });\n  }\n\n  class ChildNodes {\n    constructor(node) {\n      this.node = node;\n      this.stale = true;\n      this._length = 0;\n    }\n\n    get length() {\n      if (this.stale) {\n        this.stale = false;\n        var len = 0;\n        var child = this.node.firstChild;\n\n        for (; child !== null; len++) {\n          this[len] = child;\n          child = child.nextSibling;\n        }\n\n        var oldLen = this._length;\n        this._length = len;\n\n        for (; len < oldLen; len++) {\n          delete this[len];\n        }\n      }\n\n      return this._length;\n    }\n\n    item(index) {\n      return index < this.length ? this[index] : null;\n    }\n\n  }\n\n  function cloneNode(node, deep) {\n    var clone = nodeFrom(node);\n\n    if (deep) {\n      var child = node.firstChild;\n      var nextChild = child;\n\n      while (child !== null) {\n        nextChild = child.nextSibling;\n        clone.appendChild(child.cloneNode(true));\n        child = nextChild;\n      }\n    }\n\n    return clone;\n  }\n\n  function nodeFrom(node) {\n    var namespaceURI;\n\n    if (node.nodeType === 1\n    /* ELEMENT_NODE */\n    ) {\n        namespaceURI = node.namespaceURI;\n      }\n\n    var clone = new SimpleNodeImpl(node.ownerDocument, node.nodeType, node.nodeName, node.nodeValue, namespaceURI);\n\n    if (node.nodeType === 1\n    /* ELEMENT_NODE */\n    ) {\n        clone.attributes = copyAttrs(node.attributes);\n      }\n\n    return clone;\n  }\n\n  function copyAttrs(attrs) {\n    if (attrs === EMPTY_ATTRS) {\n      return EMPTY_ATTRS;\n    }\n\n    var copy = [];\n\n    for (var i = 0; i < attrs.length; i++) {\n      var attr = attrs[i];\n      copy.push({\n        localName: attr.localName,\n        name: attr.name,\n        namespaceURI: attr.namespaceURI,\n        prefix: attr.prefix,\n        specified: true,\n        value: attr.value\n      });\n    }\n\n    return copy;\n  }\n\n  function insertBefore(parentNode, newChild, refChild) {\n    invalidate(parentNode);\n    insertBetween(parentNode, newChild, refChild === null ? parentNode.lastChild : refChild.previousSibling, refChild);\n  }\n\n  function removeChild(parentNode, oldChild) {\n    invalidate(parentNode);\n    removeBetween(parentNode, oldChild, oldChild.previousSibling, oldChild.nextSibling);\n  }\n\n  function invalidate(parentNode) {\n    var childNodes = parentNode._childNodes;\n\n    if (childNodes !== undefined) {\n      childNodes.stale = true;\n    }\n  }\n\n  function insertBetween(parentNode, newChild, previousSibling, nextSibling) {\n    if (newChild.nodeType === 11\n    /* DOCUMENT_FRAGMENT_NODE */\n    ) {\n        insertFragment(newChild, parentNode, previousSibling, nextSibling);\n        return;\n      }\n\n    if (newChild.parentNode !== null) {\n      removeChild(newChild.parentNode, newChild);\n    }\n\n    newChild.parentNode = parentNode;\n    newChild.previousSibling = previousSibling;\n    newChild.nextSibling = nextSibling;\n\n    if (previousSibling === null) {\n      parentNode.firstChild = newChild;\n    } else {\n      previousSibling.nextSibling = newChild;\n    }\n\n    if (nextSibling === null) {\n      parentNode.lastChild = newChild;\n    } else {\n      nextSibling.previousSibling = newChild;\n    }\n  }\n\n  function removeBetween(parentNode, oldChild, previousSibling, nextSibling) {\n    oldChild.parentNode = null;\n    oldChild.previousSibling = null;\n    oldChild.nextSibling = null;\n\n    if (previousSibling === null) {\n      parentNode.firstChild = nextSibling;\n    } else {\n      previousSibling.nextSibling = nextSibling;\n    }\n\n    if (nextSibling === null) {\n      parentNode.lastChild = previousSibling;\n    } else {\n      nextSibling.previousSibling = previousSibling;\n    }\n  }\n\n  function insertFragment(fragment, parentNode, previousSibling, nextSibling) {\n    var firstChild = fragment.firstChild;\n\n    if (firstChild === null) {\n      return;\n    }\n\n    fragment.firstChild = null;\n    fragment.lastChild = null;\n    var lastChild = firstChild;\n    var newChild = firstChild;\n    firstChild.previousSibling = previousSibling;\n\n    if (previousSibling === null) {\n      parentNode.firstChild = firstChild;\n    } else {\n      previousSibling.nextSibling = firstChild;\n    }\n\n    while (newChild !== null) {\n      newChild.parentNode = parentNode;\n      lastChild = newChild;\n      newChild = newChild.nextSibling;\n    }\n\n    lastChild.nextSibling = nextSibling;\n\n    if (nextSibling === null) {\n      parentNode.lastChild = lastChild;\n    } else {\n      nextSibling.previousSibling = lastChild;\n    }\n  }\n\n  function parseQualifiedName(qualifiedName) {\n    var localName = qualifiedName;\n    var prefix = null;\n    var i = qualifiedName.indexOf(':');\n\n    if (i !== -1) {\n      prefix = qualifiedName.slice(0, i);\n      localName = qualifiedName.slice(i + 1);\n    }\n\n    return [prefix, localName];\n  }\n\n  class SimpleNodeImpl {\n    constructor(ownerDocument, nodeType, nodeName, nodeValue, namespaceURI) {\n      this.ownerDocument = ownerDocument;\n      this.nodeType = nodeType;\n      this.nodeName = nodeName;\n      this.nodeValue = nodeValue;\n      this.namespaceURI = namespaceURI;\n      this.parentNode = null;\n      this.previousSibling = null;\n      this.nextSibling = null;\n      this.firstChild = null;\n      this.lastChild = null;\n      this.attributes = EMPTY_ATTRS;\n      /**\n       * @internal\n       */\n\n      this._childNodes = undefined;\n    }\n\n    get tagName() {\n      return this.nodeName;\n    }\n\n    get childNodes() {\n      var children = this._childNodes;\n\n      if (children === undefined) {\n        children = this._childNodes = new ChildNodes(this);\n      }\n\n      return children;\n    }\n\n    cloneNode(deep) {\n      return cloneNode(this, deep === true);\n    }\n\n    appendChild(newChild) {\n      insertBefore(this, newChild, null);\n      return newChild;\n    }\n\n    insertBefore(newChild, refChild) {\n      insertBefore(this, newChild, refChild);\n      return newChild;\n    }\n\n    removeChild(oldChild) {\n      removeChild(this, oldChild);\n      return oldChild;\n    }\n\n    insertAdjacentHTML(position, html) {\n      var raw = new SimpleNodeImpl(this.ownerDocument, -1\n      /* RAW_NODE */\n      , '#raw', html, void 0);\n      var parentNode;\n      var nextSibling;\n\n      switch (position) {\n        case 'beforebegin':\n          parentNode = this.parentNode;\n          nextSibling = this;\n          break;\n\n        case 'afterbegin':\n          parentNode = this;\n          nextSibling = this.firstChild;\n          break;\n\n        case 'beforeend':\n          parentNode = this;\n          nextSibling = null;\n          break;\n\n        case 'afterend':\n          parentNode = this.parentNode;\n          nextSibling = this.nextSibling;\n          break;\n\n        default:\n          throw new Error('invalid position');\n      }\n\n      if (parentNode === null) {\n        throw new Error(`${position} requires a parentNode`);\n      }\n\n      insertBefore(parentNode, raw, nextSibling);\n    }\n\n    getAttribute(name) {\n      var localName = adjustAttrName(this.namespaceURI, name);\n      return getAttribute(this.attributes, null, localName);\n    }\n\n    getAttributeNS(namespaceURI, localName) {\n      return getAttribute(this.attributes, namespaceURI, localName);\n    }\n\n    setAttribute(name, value) {\n      var localName = adjustAttrName(this.namespaceURI, name);\n      setAttribute(this, null, null, localName, value);\n    }\n\n    setAttributeNS(namespaceURI, qualifiedName, value) {\n      var [prefix, localName] = parseQualifiedName(qualifiedName);\n      setAttribute(this, namespaceURI, prefix, localName, value);\n    }\n\n    removeAttribute(name) {\n      var localName = adjustAttrName(this.namespaceURI, name);\n      removeAttribute(this.attributes, null, localName);\n    }\n\n    removeAttributeNS(namespaceURI, localName) {\n      removeAttribute(this.attributes, namespaceURI, localName);\n    }\n\n    get doctype() {\n      return this.firstChild;\n    }\n\n    get documentElement() {\n      return this.lastChild;\n    }\n\n    get head() {\n      return this.documentElement.firstChild;\n    }\n\n    get body() {\n      return this.documentElement.lastChild;\n    }\n\n    createElement(name) {\n      return new SimpleNodeImpl(this, 1\n      /* ELEMENT_NODE */\n      , name.toUpperCase(), null, \"http://www.w3.org/1999/xhtml\"\n      /* HTML */\n      );\n    }\n\n    createElementNS(namespace, qualifiedName) {\n      // Node name is case-preserving in XML contexts, but returns canonical uppercase form in HTML contexts\n      // https://www.w3.org/TR/2004/REC-DOM-Level-3-Core-20040407/core.html#ID-104682815\n      var nodeName = namespace === \"http://www.w3.org/1999/xhtml\"\n      /* HTML */\n      ? qualifiedName.toUpperCase() : qualifiedName; // we don't care to parse the qualified name because we only support HTML documents\n      // which don't support prefixed elements\n\n      return new SimpleNodeImpl(this, 1\n      /* ELEMENT_NODE */\n      , nodeName, null, namespace);\n    }\n\n    createTextNode(text) {\n      return new SimpleNodeImpl(this, 3\n      /* TEXT_NODE */\n      , '#text', text, void 0);\n    }\n\n    createComment(text) {\n      return new SimpleNodeImpl(this, 8\n      /* COMMENT_NODE */\n      , '#comment', text, void 0);\n    }\n    /**\n     * Backwards compat\n     * @deprecated\n     */\n\n\n    createRawHTMLSection(text) {\n      return new SimpleNodeImpl(this, -1\n      /* RAW_NODE */\n      , '#raw', text, void 0);\n    }\n\n    createDocumentFragment() {\n      return new SimpleNodeImpl(this, 11\n      /* DOCUMENT_FRAGMENT_NODE */\n      , '#document-fragment', null, void 0);\n    }\n\n  }\n\n  function createHTMLDocument() {\n    // dom.d.ts types ownerDocument as Document but for a document ownerDocument is null\n    var document = new SimpleNodeImpl(null, 9\n    /* DOCUMENT_NODE */\n    , '#document', null, \"http://www.w3.org/1999/xhtml\"\n    /* HTML */\n    );\n    var doctype = new SimpleNodeImpl(document, 10\n    /* DOCUMENT_TYPE_NODE */\n    , 'html', null, \"http://www.w3.org/1999/xhtml\"\n    /* HTML */\n    );\n    var html = new SimpleNodeImpl(document, 1\n    /* ELEMENT_NODE */\n    , 'HTML', null, \"http://www.w3.org/1999/xhtml\"\n    /* HTML */\n    );\n    var head = new SimpleNodeImpl(document, 1\n    /* ELEMENT_NODE */\n    , 'HEAD', null, \"http://www.w3.org/1999/xhtml\"\n    /* HTML */\n    );\n    var body = new SimpleNodeImpl(document, 1\n    /* ELEMENT_NODE */\n    , 'BODY', null, \"http://www.w3.org/1999/xhtml\"\n    /* HTML */\n    );\n    html.appendChild(head);\n    html.appendChild(body);\n    document.appendChild(doctype);\n    document.appendChild(html);\n    return document;\n  }\n\n  var _default = createHTMLDocument;\n  _exports.default = _default;\n});","define(\"backburner\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.buildPlatform = buildPlatform;\n  _exports.default = void 0;\n  var SET_TIMEOUT = setTimeout;\n\n  var NOOP = () => {};\n\n  function buildNext(flush) {\n    // Using \"promises first\" here to:\n    //\n    // 1) Ensure more consistent experience on browsers that\n    //    have differently queued microtasks (separate queues for\n    //    MutationObserver vs Promises).\n    // 2) Ensure better debugging experiences (it shows up in Chrome\n    //    call stack as \"Promise.then (async)\") which is more consistent\n    //    with user expectations\n    //\n    // When Promise is unavailable use MutationObserver (mostly so that we\n    // still get microtasks on IE11), and when neither MutationObserver and\n    // Promise are present use a plain old setTimeout.\n    if (typeof Promise === 'function') {\n      var autorunPromise = Promise.resolve();\n      return () => autorunPromise.then(flush);\n    } else if (typeof MutationObserver === 'function') {\n      var iterations = 0;\n      var observer = new MutationObserver(flush);\n      var node = document.createTextNode('');\n      observer.observe(node, {\n        characterData: true\n      });\n      return () => {\n        iterations = ++iterations % 2;\n        node.data = '' + iterations;\n        return iterations;\n      };\n    } else {\n      return () => SET_TIMEOUT(flush, 0);\n    }\n  }\n\n  function buildPlatform(flush) {\n    var clearNext = NOOP;\n    return {\n      setTimeout(fn, ms) {\n        return setTimeout(fn, ms);\n      },\n\n      clearTimeout(timerId) {\n        return clearTimeout(timerId);\n      },\n\n      now() {\n        return Date.now();\n      },\n\n      next: buildNext(flush),\n      clearNext\n    };\n  }\n\n  var NUMBER = /\\d+/;\n  var TIMERS_OFFSET = 6;\n\n  function isCoercableNumber(suspect) {\n    var type = typeof suspect;\n    return type === 'number' && suspect === suspect || type === 'string' && NUMBER.test(suspect);\n  }\n\n  function getOnError(options) {\n    return options.onError || options.onErrorTarget && options.onErrorTarget[options.onErrorMethod];\n  }\n\n  function findItem(target, method, collection) {\n    var index = -1;\n\n    for (var i = 0, l = collection.length; i < l; i += 4) {\n      if (collection[i] === target && collection[i + 1] === method) {\n        index = i;\n        break;\n      }\n    }\n\n    return index;\n  }\n\n  function findTimerItem(target, method, collection) {\n    var index = -1;\n\n    for (var i = 2, l = collection.length; i < l; i += 6) {\n      if (collection[i] === target && collection[i + 1] === method) {\n        index = i - 2;\n        break;\n      }\n    }\n\n    return index;\n  }\n\n  function getQueueItems(items, queueItemLength, queueItemPositionOffset = 0) {\n    var queueItems = [];\n\n    for (var i = 0; i < items.length; i += queueItemLength) {\n      var maybeError = items[i + 3\n      /* stack */\n      + queueItemPositionOffset];\n      var queueItem = {\n        target: items[i + 0\n        /* target */\n        + queueItemPositionOffset],\n        method: items[i + 1\n        /* method */\n        + queueItemPositionOffset],\n        args: items[i + 2\n        /* args */\n        + queueItemPositionOffset],\n        stack: maybeError !== undefined && 'stack' in maybeError ? maybeError.stack : ''\n      };\n      queueItems.push(queueItem);\n    }\n\n    return queueItems;\n  }\n\n  function binarySearch(time, timers) {\n    var start = 0;\n    var end = timers.length - TIMERS_OFFSET;\n    var middle;\n    var l;\n\n    while (start < end) {\n      // since timers is an array of pairs 'l' will always\n      // be an integer\n      l = (end - start) / TIMERS_OFFSET; // compensate for the index in case even number\n      // of pairs inside timers\n\n      middle = start + l - l % TIMERS_OFFSET;\n\n      if (time >= timers[middle]) {\n        start = middle + TIMERS_OFFSET;\n      } else {\n        end = middle;\n      }\n    }\n\n    return time >= timers[start] ? start + TIMERS_OFFSET : start;\n  }\n\n  var QUEUE_ITEM_LENGTH = 4;\n\n  class Queue {\n    constructor(name, options = {}, globalOptions = {}) {\n      this._queueBeingFlushed = [];\n      this.targetQueues = new Map();\n      this.index = 0;\n      this._queue = [];\n      this.name = name;\n      this.options = options;\n      this.globalOptions = globalOptions;\n    }\n\n    stackFor(index) {\n      if (index < this._queue.length) {\n        var entry = this._queue[index * 3 + QUEUE_ITEM_LENGTH];\n\n        if (entry) {\n          return entry.stack;\n        } else {\n          return null;\n        }\n      }\n    }\n\n    flush(sync) {\n      var {\n        before,\n        after\n      } = this.options;\n      var target;\n      var method;\n      var args;\n      var errorRecordedForStack;\n      this.targetQueues.clear();\n\n      if (this._queueBeingFlushed.length === 0) {\n        this._queueBeingFlushed = this._queue;\n        this._queue = [];\n      }\n\n      if (before !== undefined) {\n        before();\n      }\n\n      var invoke;\n      var queueItems = this._queueBeingFlushed;\n\n      if (queueItems.length > 0) {\n        var onError = getOnError(this.globalOptions);\n        invoke = onError ? this.invokeWithOnError : this.invoke;\n\n        for (var i = this.index; i < queueItems.length; i += QUEUE_ITEM_LENGTH) {\n          this.index += QUEUE_ITEM_LENGTH;\n          method = queueItems[i + 1]; // method could have been nullified / canceled during flush\n\n          if (method !== null) {\n            //\n            //    ** Attention intrepid developer **\n            //\n            //    To find out the stack of this task when it was scheduled onto\n            //    the run loop, add the following to your app.js:\n            //\n            //    Ember.run.backburner.DEBUG = true; // NOTE: This slows your app, don't leave it on in production.\n            //\n            //    Once that is in place, when you are at a breakpoint and navigate\n            //    here in the stack explorer, you can look at `errorRecordedForStack.stack`,\n            //    which will be the captured stack when this job was scheduled.\n            //\n            //    One possible long-term solution is the following Chrome issue:\n            //       https://bugs.chromium.org/p/chromium/issues/detail?id=332624\n            //\n            target = queueItems[i];\n            args = queueItems[i + 2];\n            errorRecordedForStack = queueItems[i + 3]; // Debugging assistance\n\n            invoke(target, method, args, onError, errorRecordedForStack);\n          }\n\n          if (this.index !== this._queueBeingFlushed.length && this.globalOptions.mustYield && this.globalOptions.mustYield()) {\n            return 1\n            /* Pause */\n            ;\n          }\n        }\n      }\n\n      if (after !== undefined) {\n        after();\n      }\n\n      this._queueBeingFlushed.length = 0;\n      this.index = 0;\n\n      if (sync !== false && this._queue.length > 0) {\n        // check if new items have been added\n        this.flush(true);\n      }\n    }\n\n    hasWork() {\n      return this._queueBeingFlushed.length > 0 || this._queue.length > 0;\n    }\n\n    cancel({\n      target,\n      method\n    }) {\n      var queue = this._queue;\n      var targetQueueMap = this.targetQueues.get(target);\n\n      if (targetQueueMap !== undefined) {\n        targetQueueMap.delete(method);\n      }\n\n      var index = findItem(target, method, queue);\n\n      if (index > -1) {\n        queue.splice(index, QUEUE_ITEM_LENGTH);\n        return true;\n      } // if not found in current queue\n      // could be in the queue that is being flushed\n\n\n      queue = this._queueBeingFlushed;\n      index = findItem(target, method, queue);\n\n      if (index > -1) {\n        queue[index + 1] = null;\n        return true;\n      }\n\n      return false;\n    }\n\n    push(target, method, args, stack) {\n      this._queue.push(target, method, args, stack);\n\n      return {\n        queue: this,\n        target,\n        method\n      };\n    }\n\n    pushUnique(target, method, args, stack) {\n      var localQueueMap = this.targetQueues.get(target);\n\n      if (localQueueMap === undefined) {\n        localQueueMap = new Map();\n        this.targetQueues.set(target, localQueueMap);\n      }\n\n      var index = localQueueMap.get(method);\n\n      if (index === undefined) {\n        var queueIndex = this._queue.push(target, method, args, stack) - QUEUE_ITEM_LENGTH;\n        localQueueMap.set(method, queueIndex);\n      } else {\n        var queue = this._queue;\n        queue[index + 2] = args; // replace args\n\n        queue[index + 3] = stack; // replace stack\n      }\n\n      return {\n        queue: this,\n        target,\n        method\n      };\n    }\n\n    _getDebugInfo(debugEnabled) {\n      if (debugEnabled) {\n        var debugInfo = getQueueItems(this._queue, QUEUE_ITEM_LENGTH);\n        return debugInfo;\n      }\n\n      return undefined;\n    }\n\n    invoke(target, method, args\n    /*, onError, errorRecordedForStack */\n    ) {\n      if (args === undefined) {\n        method.call(target);\n      } else {\n        method.apply(target, args);\n      }\n    }\n\n    invokeWithOnError(target, method, args, onError, errorRecordedForStack) {\n      try {\n        if (args === undefined) {\n          method.call(target);\n        } else {\n          method.apply(target, args);\n        }\n      } catch (error) {\n        onError(error, errorRecordedForStack);\n      }\n    }\n\n  }\n\n  class DeferredActionQueues {\n    constructor(queueNames = [], options) {\n      this.queues = {};\n      this.queueNameIndex = 0;\n      this.queueNames = queueNames;\n      queueNames.reduce(function (queues, queueName) {\n        queues[queueName] = new Queue(queueName, options[queueName], options);\n        return queues;\n      }, this.queues);\n    }\n    /**\n     * @method schedule\n     * @param {String} queueName\n     * @param {Any} target\n     * @param {Any} method\n     * @param {Any} args\n     * @param {Boolean} onceFlag\n     * @param {Any} stack\n     * @return queue\n     */\n\n\n    schedule(queueName, target, method, args, onceFlag, stack) {\n      var queues = this.queues;\n      var queue = queues[queueName];\n\n      if (queue === undefined) {\n        throw new Error(`You attempted to schedule an action in a queue (${queueName}) that doesn\\'t exist`);\n      }\n\n      if (method === undefined || method === null) {\n        throw new Error(`You attempted to schedule an action in a queue (${queueName}) for a method that doesn\\'t exist`);\n      }\n\n      this.queueNameIndex = 0;\n\n      if (onceFlag) {\n        return queue.pushUnique(target, method, args, stack);\n      } else {\n        return queue.push(target, method, args, stack);\n      }\n    }\n    /**\n     * DeferredActionQueues.flush() calls Queue.flush()\n     *\n     * @method flush\n     * @param {Boolean} fromAutorun\n     */\n\n\n    flush(fromAutorun = false) {\n      var queue;\n      var queueName;\n      var numberOfQueues = this.queueNames.length;\n\n      while (this.queueNameIndex < numberOfQueues) {\n        queueName = this.queueNames[this.queueNameIndex];\n        queue = this.queues[queueName];\n\n        if (queue.hasWork() === false) {\n          this.queueNameIndex++;\n\n          if (fromAutorun && this.queueNameIndex < numberOfQueues) {\n            return 1\n            /* Pause */\n            ;\n          }\n        } else {\n          if (queue.flush(false\n          /* async */\n          ) === 1\n          /* Pause */\n          ) {\n              return 1\n              /* Pause */\n              ;\n            }\n        }\n      }\n    }\n    /**\n     * Returns debug information for the current queues.\n     *\n     * @method _getDebugInfo\n     * @param {Boolean} debugEnabled\n     * @returns {IDebugInfo | undefined}\n     */\n\n\n    _getDebugInfo(debugEnabled) {\n      if (debugEnabled) {\n        var debugInfo = {};\n        var queue;\n        var queueName;\n        var numberOfQueues = this.queueNames.length;\n        var i = 0;\n\n        while (i < numberOfQueues) {\n          queueName = this.queueNames[i];\n          queue = this.queues[queueName];\n          debugInfo[queueName] = queue._getDebugInfo(debugEnabled);\n          i++;\n        }\n\n        return debugInfo;\n      }\n\n      return;\n    }\n\n  }\n\n  function iteratorDrain(fn) {\n    var iterator = fn();\n    var result = iterator.next();\n\n    while (result.done === false) {\n      result.value();\n      result = iterator.next();\n    }\n  }\n\n  var noop = function () {};\n\n  var DISABLE_SCHEDULE = Object.freeze([]);\n\n  function parseArgs() {\n    var length = arguments.length;\n    var args;\n    var method;\n    var target;\n\n    if (length === 0) {} else if (length === 1) {\n      target = null;\n      method = arguments[0];\n    } else {\n      var argsIndex = 2;\n      var methodOrTarget = arguments[0];\n      var methodOrArgs = arguments[1];\n      var type = typeof methodOrArgs;\n\n      if (type === 'function') {\n        target = methodOrTarget;\n        method = methodOrArgs;\n      } else if (methodOrTarget !== null && type === 'string' && methodOrArgs in methodOrTarget) {\n        target = methodOrTarget;\n        method = target[methodOrArgs];\n      } else if (typeof methodOrTarget === 'function') {\n        argsIndex = 1;\n        target = null;\n        method = methodOrTarget;\n      }\n\n      if (length > argsIndex) {\n        var len = length - argsIndex;\n        args = new Array(len);\n\n        for (var i = 0; i < len; i++) {\n          args[i] = arguments[i + argsIndex];\n        }\n      }\n    }\n\n    return [target, method, args];\n  }\n\n  function parseTimerArgs() {\n    var [target, method, args] = parseArgs(...arguments);\n    var wait = 0;\n    var length = args !== undefined ? args.length : 0;\n\n    if (length > 0) {\n      var last = args[length - 1];\n\n      if (isCoercableNumber(last)) {\n        wait = parseInt(args.pop(), 10);\n      }\n    }\n\n    return [target, method, args, wait];\n  }\n\n  function parseDebounceArgs() {\n    var target;\n    var method;\n    var isImmediate;\n    var args;\n    var wait;\n\n    if (arguments.length === 2) {\n      method = arguments[0];\n      wait = arguments[1];\n      target = null;\n    } else {\n      [target, method, args] = parseArgs(...arguments);\n\n      if (args === undefined) {\n        wait = 0;\n      } else {\n        wait = args.pop();\n\n        if (!isCoercableNumber(wait)) {\n          isImmediate = wait === true;\n          wait = args.pop();\n        }\n      }\n    }\n\n    wait = parseInt(wait, 10);\n    return [target, method, args, wait, isImmediate];\n  }\n\n  var UUID = 0;\n  var beginCount = 0;\n  var endCount = 0;\n  var beginEventCount = 0;\n  var endEventCount = 0;\n  var runCount = 0;\n  var joinCount = 0;\n  var deferCount = 0;\n  var scheduleCount = 0;\n  var scheduleIterableCount = 0;\n  var deferOnceCount = 0;\n  var scheduleOnceCount = 0;\n  var setTimeoutCount = 0;\n  var laterCount = 0;\n  var throttleCount = 0;\n  var debounceCount = 0;\n  var cancelTimersCount = 0;\n  var cancelCount = 0;\n  var autorunsCreatedCount = 0;\n  var autorunsCompletedCount = 0;\n  var deferredActionQueuesCreatedCount = 0;\n  var nestedDeferredActionQueuesCreated = 0;\n\n  class Backburner {\n    constructor(queueNames, options) {\n      this.DEBUG = false;\n      this.currentInstance = null;\n      this.instanceStack = [];\n      this._eventCallbacks = {\n        end: [],\n        begin: []\n      };\n      this._timerTimeoutId = null;\n      this._timers = [];\n      this._autorun = false;\n      this._autorunStack = null;\n      this.queueNames = queueNames;\n      this.options = options || {};\n\n      if (typeof this.options.defaultQueue === 'string') {\n        this._defaultQueue = this.options.defaultQueue;\n      } else {\n        this._defaultQueue = this.queueNames[0];\n      }\n\n      this._onBegin = this.options.onBegin || noop;\n      this._onEnd = this.options.onEnd || noop;\n      this._boundRunExpiredTimers = this._runExpiredTimers.bind(this);\n\n      this._boundAutorunEnd = () => {\n        autorunsCompletedCount++; // if the autorun was already flushed, do nothing\n\n        if (this._autorun === false) {\n          return;\n        }\n\n        this._autorun = false;\n        this._autorunStack = null;\n\n        this._end(true\n        /* fromAutorun */\n        );\n      };\n\n      var builder = this.options._buildPlatform || buildPlatform;\n      this._platform = builder(this._boundAutorunEnd);\n    }\n\n    get counters() {\n      return {\n        begin: beginCount,\n        end: endCount,\n        events: {\n          begin: beginEventCount,\n          end: endEventCount\n        },\n        autoruns: {\n          created: autorunsCreatedCount,\n          completed: autorunsCompletedCount\n        },\n        run: runCount,\n        join: joinCount,\n        defer: deferCount,\n        schedule: scheduleCount,\n        scheduleIterable: scheduleIterableCount,\n        deferOnce: deferOnceCount,\n        scheduleOnce: scheduleOnceCount,\n        setTimeout: setTimeoutCount,\n        later: laterCount,\n        throttle: throttleCount,\n        debounce: debounceCount,\n        cancelTimers: cancelTimersCount,\n        cancel: cancelCount,\n        loops: {\n          total: deferredActionQueuesCreatedCount,\n          nested: nestedDeferredActionQueuesCreated\n        }\n      };\n    }\n\n    get defaultQueue() {\n      return this._defaultQueue;\n    }\n    /*\n      @method begin\n      @return instantiated class DeferredActionQueues\n    */\n\n\n    begin() {\n      beginCount++;\n      var options = this.options;\n      var previousInstance = this.currentInstance;\n      var current;\n\n      if (this._autorun !== false) {\n        current = previousInstance;\n\n        this._cancelAutorun();\n      } else {\n        if (previousInstance !== null) {\n          nestedDeferredActionQueuesCreated++;\n          this.instanceStack.push(previousInstance);\n        }\n\n        deferredActionQueuesCreatedCount++;\n        current = this.currentInstance = new DeferredActionQueues(this.queueNames, options);\n        beginEventCount++;\n\n        this._trigger('begin', current, previousInstance);\n      }\n\n      this._onBegin(current, previousInstance);\n\n      return current;\n    }\n\n    end() {\n      endCount++;\n\n      this._end(false);\n    }\n\n    on(eventName, callback) {\n      if (typeof callback !== 'function') {\n        throw new TypeError(`Callback must be a function`);\n      }\n\n      var callbacks = this._eventCallbacks[eventName];\n\n      if (callbacks !== undefined) {\n        callbacks.push(callback);\n      } else {\n        throw new TypeError(`Cannot on() event ${eventName} because it does not exist`);\n      }\n    }\n\n    off(eventName, callback) {\n      var callbacks = this._eventCallbacks[eventName];\n\n      if (!eventName || callbacks === undefined) {\n        throw new TypeError(`Cannot off() event ${eventName} because it does not exist`);\n      }\n\n      var callbackFound = false;\n\n      if (callback) {\n        for (var i = 0; i < callbacks.length; i++) {\n          if (callbacks[i] === callback) {\n            callbackFound = true;\n            callbacks.splice(i, 1);\n            i--;\n          }\n        }\n      }\n\n      if (!callbackFound) {\n        throw new TypeError(`Cannot off() callback that does not exist`);\n      }\n    }\n\n    run() {\n      runCount++;\n      var [target, method, args] = parseArgs(...arguments);\n      return this._run(target, method, args);\n    }\n\n    join() {\n      joinCount++;\n      var [target, method, args] = parseArgs(...arguments);\n      return this._join(target, method, args);\n    }\n    /**\n     * @deprecated please use schedule instead.\n     */\n\n\n    defer(queueName, target, method, ...args) {\n      deferCount++;\n      return this.schedule(queueName, target, method, ...args);\n    }\n\n    schedule(queueName, ..._args) {\n      scheduleCount++;\n      var [target, method, args] = parseArgs(..._args);\n      var stack = this.DEBUG ? new Error() : undefined;\n      return this._ensureInstance().schedule(queueName, target, method, args, false, stack);\n    }\n    /*\n      Defer the passed iterable of functions to run inside the specified queue.\n         @method scheduleIterable\n      @param {String} queueName\n      @param {Iterable} an iterable of functions to execute\n      @return method result\n    */\n\n\n    scheduleIterable(queueName, iterable) {\n      scheduleIterableCount++;\n      var stack = this.DEBUG ? new Error() : undefined;\n      return this._ensureInstance().schedule(queueName, null, iteratorDrain, [iterable], false, stack);\n    }\n    /**\n     * @deprecated please use scheduleOnce instead.\n     */\n\n\n    deferOnce(queueName, target, method, ...args) {\n      deferOnceCount++;\n      return this.scheduleOnce(queueName, target, method, ...args);\n    }\n\n    scheduleOnce(queueName, ..._args) {\n      scheduleOnceCount++;\n      var [target, method, args] = parseArgs(..._args);\n      var stack = this.DEBUG ? new Error() : undefined;\n      return this._ensureInstance().schedule(queueName, target, method, args, true, stack);\n    }\n\n    setTimeout() {\n      setTimeoutCount++;\n      return this.later(...arguments);\n    }\n\n    later() {\n      laterCount++;\n      var [target, method, args, wait] = parseTimerArgs(...arguments);\n      return this._later(target, method, args, wait);\n    }\n\n    throttle() {\n      throttleCount++;\n      var [target, method, args, wait, isImmediate = true] = parseDebounceArgs(...arguments);\n      var index = findTimerItem(target, method, this._timers);\n      var timerId;\n\n      if (index === -1) {\n        timerId = this._later(target, method, isImmediate ? DISABLE_SCHEDULE : args, wait);\n\n        if (isImmediate) {\n          this._join(target, method, args);\n        }\n      } else {\n        timerId = this._timers[index + 1];\n        var argIndex = index + 4;\n\n        if (this._timers[argIndex] !== DISABLE_SCHEDULE) {\n          this._timers[argIndex] = args;\n        }\n      }\n\n      return timerId;\n    }\n\n    debounce() {\n      debounceCount++;\n      var [target, method, args, wait, isImmediate = false] = parseDebounceArgs(...arguments);\n      var _timers = this._timers;\n      var index = findTimerItem(target, method, _timers);\n      var timerId;\n\n      if (index === -1) {\n        timerId = this._later(target, method, isImmediate ? DISABLE_SCHEDULE : args, wait);\n\n        if (isImmediate) {\n          this._join(target, method, args);\n        }\n      } else {\n        var executeAt = this._platform.now() + wait;\n        var argIndex = index + 4;\n\n        if (_timers[argIndex] === DISABLE_SCHEDULE) {\n          args = DISABLE_SCHEDULE;\n        }\n\n        timerId = _timers[index + 1];\n        var i = binarySearch(executeAt, _timers);\n\n        if (index + TIMERS_OFFSET === i) {\n          _timers[index] = executeAt;\n          _timers[argIndex] = args;\n        } else {\n          var stack = this._timers[index + 5];\n\n          this._timers.splice(i, 0, executeAt, timerId, target, method, args, stack);\n\n          this._timers.splice(index, TIMERS_OFFSET);\n        }\n\n        if (index === 0) {\n          this._reinstallTimerTimeout();\n        }\n      }\n\n      return timerId;\n    }\n\n    cancelTimers() {\n      cancelTimersCount++;\n\n      this._clearTimerTimeout();\n\n      this._timers = [];\n\n      this._cancelAutorun();\n    }\n\n    hasTimers() {\n      return this._timers.length > 0 || this._autorun;\n    }\n\n    cancel(timer) {\n      cancelCount++;\n\n      if (timer === null || timer === undefined) {\n        return false;\n      }\n\n      var timerType = typeof timer;\n\n      if (timerType === 'number') {\n        // we're cancelling a setTimeout or throttle or debounce\n        return this._cancelLaterTimer(timer);\n      } else if (timerType === 'object' && timer.queue && timer.method) {\n        // we're cancelling a deferOnce\n        return timer.queue.cancel(timer);\n      }\n\n      return false;\n    }\n\n    ensureInstance() {\n      this._ensureInstance();\n    }\n    /**\n     * Returns debug information related to the current instance of Backburner\n     *\n     * @method getDebugInfo\n     * @returns {Object | undefined} Will return and Object containing debug information if\n     * the DEBUG flag is set to true on the current instance of Backburner, else undefined.\n     */\n\n\n    getDebugInfo() {\n      if (this.DEBUG) {\n        return {\n          autorun: this._autorunStack,\n          counters: this.counters,\n          timers: getQueueItems(this._timers, TIMERS_OFFSET, 2),\n          instanceStack: [this.currentInstance, ...this.instanceStack].map(deferredActionQueue => deferredActionQueue && deferredActionQueue._getDebugInfo(this.DEBUG))\n        };\n      }\n\n      return undefined;\n    }\n\n    _end(fromAutorun) {\n      var currentInstance = this.currentInstance;\n      var nextInstance = null;\n\n      if (currentInstance === null) {\n        throw new Error(`end called without begin`);\n      } // Prevent double-finally bug in Safari 6.0.2 and iOS 6\n      // This bug appears to be resolved in Safari 6.0.5 and iOS 7\n\n\n      var finallyAlreadyCalled = false;\n      var result;\n\n      try {\n        result = currentInstance.flush(fromAutorun);\n      } finally {\n        if (!finallyAlreadyCalled) {\n          finallyAlreadyCalled = true;\n\n          if (result === 1\n          /* Pause */\n          ) {\n              var plannedNextQueue = this.queueNames[currentInstance.queueNameIndex];\n\n              this._scheduleAutorun(plannedNextQueue);\n            } else {\n            this.currentInstance = null;\n\n            if (this.instanceStack.length > 0) {\n              nextInstance = this.instanceStack.pop();\n              this.currentInstance = nextInstance;\n            }\n\n            this._trigger('end', currentInstance, nextInstance);\n\n            this._onEnd(currentInstance, nextInstance);\n          }\n        }\n      }\n    }\n\n    _join(target, method, args) {\n      if (this.currentInstance === null) {\n        return this._run(target, method, args);\n      }\n\n      if (target === undefined && args === undefined) {\n        return method();\n      } else {\n        return method.apply(target, args);\n      }\n    }\n\n    _run(target, method, args) {\n      var onError = getOnError(this.options);\n      this.begin();\n\n      if (onError) {\n        try {\n          return method.apply(target, args);\n        } catch (error) {\n          onError(error);\n        } finally {\n          this.end();\n        }\n      } else {\n        try {\n          return method.apply(target, args);\n        } finally {\n          this.end();\n        }\n      }\n    }\n\n    _cancelAutorun() {\n      if (this._autorun) {\n        this._platform.clearNext();\n\n        this._autorun = false;\n        this._autorunStack = null;\n      }\n    }\n\n    _later(target, method, args, wait) {\n      var stack = this.DEBUG ? new Error() : undefined;\n      var executeAt = this._platform.now() + wait;\n      var id = UUID++;\n\n      if (this._timers.length === 0) {\n        this._timers.push(executeAt, id, target, method, args, stack);\n\n        this._installTimerTimeout();\n      } else {\n        // find position to insert\n        var i = binarySearch(executeAt, this._timers);\n\n        this._timers.splice(i, 0, executeAt, id, target, method, args, stack); // always reinstall since it could be out of sync\n\n\n        this._reinstallTimerTimeout();\n      }\n\n      return id;\n    }\n\n    _cancelLaterTimer(timer) {\n      for (var i = 1; i < this._timers.length; i += TIMERS_OFFSET) {\n        if (this._timers[i] === timer) {\n          this._timers.splice(i - 1, TIMERS_OFFSET);\n\n          if (i === 1) {\n            this._reinstallTimerTimeout();\n          }\n\n          return true;\n        }\n      }\n\n      return false;\n    }\n    /**\n     Trigger an event. Supports up to two arguments. Designed around\n     triggering transition events from one run loop instance to the\n     next, which requires an argument for the  instance and then\n     an argument for the next instance.\n        @private\n     @method _trigger\n     @param {String} eventName\n     @param {any} arg1\n     @param {any} arg2\n     */\n\n\n    _trigger(eventName, arg1, arg2) {\n      var callbacks = this._eventCallbacks[eventName];\n\n      if (callbacks !== undefined) {\n        for (var i = 0; i < callbacks.length; i++) {\n          callbacks[i](arg1, arg2);\n        }\n      }\n    }\n\n    _runExpiredTimers() {\n      this._timerTimeoutId = null;\n\n      if (this._timers.length > 0) {\n        this.begin();\n\n        this._scheduleExpiredTimers();\n\n        this.end();\n      }\n    }\n\n    _scheduleExpiredTimers() {\n      var timers = this._timers;\n      var i = 0;\n      var l = timers.length;\n      var defaultQueue = this._defaultQueue;\n\n      var n = this._platform.now();\n\n      for (; i < l; i += TIMERS_OFFSET) {\n        var executeAt = timers[i];\n\n        if (executeAt > n) {\n          break;\n        }\n\n        var args = timers[i + 4];\n\n        if (args !== DISABLE_SCHEDULE) {\n          var target = timers[i + 2];\n          var method = timers[i + 3];\n          var stack = timers[i + 5];\n          this.currentInstance.schedule(defaultQueue, target, method, args, false, stack);\n        }\n      }\n\n      timers.splice(0, i);\n\n      this._installTimerTimeout();\n    }\n\n    _reinstallTimerTimeout() {\n      this._clearTimerTimeout();\n\n      this._installTimerTimeout();\n    }\n\n    _clearTimerTimeout() {\n      if (this._timerTimeoutId === null) {\n        return;\n      }\n\n      this._platform.clearTimeout(this._timerTimeoutId);\n\n      this._timerTimeoutId = null;\n    }\n\n    _installTimerTimeout() {\n      if (this._timers.length === 0) {\n        return;\n      }\n\n      var minExpiresAt = this._timers[0];\n\n      var n = this._platform.now();\n\n      var wait = Math.max(0, minExpiresAt - n);\n      this._timerTimeoutId = this._platform.setTimeout(this._boundRunExpiredTimers, wait);\n    }\n\n    _ensureInstance() {\n      var currentInstance = this.currentInstance;\n\n      if (currentInstance === null) {\n        this._autorunStack = this.DEBUG ? new Error() : undefined;\n        currentInstance = this.begin();\n\n        this._scheduleAutorun(this.queueNames[0]);\n      }\n\n      return currentInstance;\n    }\n\n    _scheduleAutorun(plannedNextQueue) {\n      autorunsCreatedCount++;\n      var next = this._platform.next;\n      var flush = this.options.flush;\n\n      if (flush) {\n        flush(plannedNextQueue, next);\n      } else {\n        next();\n      }\n\n      this._autorun = true;\n    }\n\n  }\n\n  Backburner.Queue = Queue;\n  Backburner.buildPlatform = buildPlatform;\n  Backburner.buildNext = buildNext;\n  var _default = Backburner;\n  _exports.default = _default;\n});","define(\"dag-map\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n   * A topologically ordered map of key/value pairs with a simple API for adding constraints.\n   *\n   * Edges can forward reference keys that have not been added yet (the forward reference will\n   * map the key to undefined).\n   */\n  var DAG = function () {\n    function DAG() {\n      this._vertices = new Vertices();\n    }\n    /**\n     * Adds a key/value pair with dependencies on other key/value pairs.\n     *\n     * @public\n     * @param key    The key of the vertex to be added.\n     * @param value  The value of that vertex.\n     * @param before A key or array of keys of the vertices that must\n     *               be visited before this vertex.\n     * @param after  An string or array of strings with the keys of the\n     *               vertices that must be after this vertex is visited.\n     */\n\n\n    DAG.prototype.add = function (key, value, before, after) {\n      if (!key) throw new Error('argument `key` is required');\n      var vertices = this._vertices;\n      var v = vertices.add(key);\n      v.val = value;\n\n      if (before) {\n        if (typeof before === \"string\") {\n          vertices.addEdge(v, vertices.add(before));\n        } else {\n          for (var i = 0; i < before.length; i++) {\n            vertices.addEdge(v, vertices.add(before[i]));\n          }\n        }\n      }\n\n      if (after) {\n        if (typeof after === \"string\") {\n          vertices.addEdge(vertices.add(after), v);\n        } else {\n          for (var i = 0; i < after.length; i++) {\n            vertices.addEdge(vertices.add(after[i]), v);\n          }\n        }\n      }\n    };\n    /**\n     * @deprecated please use add.\n     */\n\n\n    DAG.prototype.addEdges = function (key, value, before, after) {\n      this.add(key, value, before, after);\n    };\n    /**\n     * Visits key/value pairs in topological order.\n     *\n     * @public\n     * @param callback The function to be invoked with each key/value.\n     */\n\n\n    DAG.prototype.each = function (callback) {\n      this._vertices.walk(callback);\n    };\n    /**\n     * @deprecated please use each.\n     */\n\n\n    DAG.prototype.topsort = function (callback) {\n      this.each(callback);\n    };\n\n    return DAG;\n  }();\n\n  var _default = DAG;\n  /** @private */\n\n  _exports.default = _default;\n\n  var Vertices = function () {\n    function Vertices() {\n      this.length = 0;\n      this.stack = new IntStack();\n      this.path = new IntStack();\n      this.result = new IntStack();\n    }\n\n    Vertices.prototype.add = function (key) {\n      if (!key) throw new Error(\"missing key\");\n      var l = this.length | 0;\n      var vertex;\n\n      for (var i = 0; i < l; i++) {\n        vertex = this[i];\n        if (vertex.key === key) return vertex;\n      }\n\n      this.length = l + 1;\n      return this[l] = {\n        idx: l,\n        key: key,\n        val: undefined,\n        out: false,\n        flag: false,\n        length: 0\n      };\n    };\n\n    Vertices.prototype.addEdge = function (v, w) {\n      this.check(v, w.key);\n      var l = w.length | 0;\n\n      for (var i = 0; i < l; i++) {\n        if (w[i] === v.idx) return;\n      }\n\n      w.length = l + 1;\n      w[l] = v.idx;\n      v.out = true;\n    };\n\n    Vertices.prototype.walk = function (cb) {\n      this.reset();\n\n      for (var i = 0; i < this.length; i++) {\n        var vertex = this[i];\n        if (vertex.out) continue;\n        this.visit(vertex, \"\");\n      }\n\n      this.each(this.result, cb);\n    };\n\n    Vertices.prototype.check = function (v, w) {\n      if (v.key === w) {\n        throw new Error(\"cycle detected: \" + w + \" <- \" + w);\n      } // quick check\n\n\n      if (v.length === 0) return; // shallow check\n\n      for (var i = 0; i < v.length; i++) {\n        var key = this[v[i]].key;\n\n        if (key === w) {\n          throw new Error(\"cycle detected: \" + w + \" <- \" + v.key + \" <- \" + w);\n        }\n      } // deep check\n\n\n      this.reset();\n      this.visit(v, w);\n\n      if (this.path.length > 0) {\n        var msg_1 = \"cycle detected: \" + w;\n        this.each(this.path, function (key) {\n          msg_1 += \" <- \" + key;\n        });\n        throw new Error(msg_1);\n      }\n    };\n\n    Vertices.prototype.reset = function () {\n      this.stack.length = 0;\n      this.path.length = 0;\n      this.result.length = 0;\n\n      for (var i = 0, l = this.length; i < l; i++) {\n        this[i].flag = false;\n      }\n    };\n\n    Vertices.prototype.visit = function (start, search) {\n      var _a = this,\n          stack = _a.stack,\n          path = _a.path,\n          result = _a.result;\n\n      stack.push(start.idx);\n\n      while (stack.length) {\n        var index = stack.pop() | 0;\n\n        if (index >= 0) {\n          // enter\n          var vertex = this[index];\n          if (vertex.flag) continue;\n          vertex.flag = true;\n          path.push(index);\n          if (search === vertex.key) break; // push exit\n\n          stack.push(~index);\n          this.pushIncoming(vertex);\n        } else {\n          // exit\n          path.pop();\n          result.push(~index);\n        }\n      }\n    };\n\n    Vertices.prototype.pushIncoming = function (incomming) {\n      var stack = this.stack;\n\n      for (var i = incomming.length - 1; i >= 0; i--) {\n        var index = incomming[i];\n\n        if (!this[index].flag) {\n          stack.push(index);\n        }\n      }\n    };\n\n    Vertices.prototype.each = function (indices, cb) {\n      for (var i = 0, l = indices.length; i < l; i++) {\n        var vertex = this[indices[i]];\n        cb(vertex.key, vertex.val);\n      }\n    };\n\n    return Vertices;\n  }();\n  /** @private */\n\n\n  var IntStack = function () {\n    function IntStack() {\n      this.length = 0;\n    }\n\n    IntStack.prototype.push = function (n) {\n      this[this.length++] = n | 0;\n    };\n\n    IntStack.prototype.pop = function () {\n      return this[--this.length] | 0;\n    };\n\n    return IntStack;\n  }();\n});","define(\"ember-babel\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.wrapNativeSuper = wrapNativeSuper;\n  _exports.classCallCheck = classCallCheck;\n  _exports.inheritsLoose = inheritsLoose;\n  _exports.taggedTemplateLiteralLoose = taggedTemplateLiteralLoose;\n  _exports.createClass = createClass;\n  _exports.assertThisInitialized = assertThisInitialized;\n  _exports.possibleConstructorReturn = possibleConstructorReturn;\n  _exports.objectDestructuringEmpty = objectDestructuringEmpty;\n  _exports.createSuper = createSuper;\n  _exports.createForOfIteratorHelperLoose = createForOfIteratorHelperLoose;\n\n  /* globals Reflect */\n  var setPrototypeOf = Object.setPrototypeOf;\n  var getPrototypeOf = Object.getPrototypeOf;\n  var hasReflectConstruct = typeof Reflect === 'object' && typeof Reflect.construct === 'function';\n  var nativeWrapperCache = new Map(); // Super minimal version of Babel's wrapNativeSuper. We only use this for\n  // extending Function, for ComputedDecoratorImpl and AliasDecoratorImpl. We know\n  // we will never directly create an instance of these classes so no need to\n  // include `construct` code or other helpers.\n\n  function wrapNativeSuper(Class) {\n    if (nativeWrapperCache.has(Class)) {\n      return nativeWrapperCache.get(Class);\n    }\n\n    function Wrapper() {}\n\n    Wrapper.prototype = Object.create(Class.prototype, {\n      constructor: {\n        value: Wrapper,\n        enumerable: false,\n        writable: true,\n        configurable: true\n      }\n    });\n    nativeWrapperCache.set(Class, Wrapper);\n    return setPrototypeOf(Wrapper, Class);\n  }\n\n  function classCallCheck(instance, Constructor) {\n    if (true\n    /* DEBUG */\n    ) {\n      if (!(instance instanceof Constructor)) {\n        throw new TypeError('Cannot call a class as a function');\n      }\n    }\n  }\n  /*\n    Overrides default `inheritsLoose` to _also_ call `Object.setPrototypeOf`.\n    This is needed so that we can use `loose` option with the\n    `@babel/plugin-transform-classes` (because we want simple assignment to the\n    prototype wherever possible) but also keep our constructor based prototypal\n    inheritance working properly\n  */\n\n\n  function inheritsLoose(subClass, superClass) {\n    if (true\n    /* DEBUG */\n    ) {\n      if (typeof superClass !== 'function' && superClass !== null) {\n        throw new TypeError('Super expression must either be null or a function');\n      }\n    }\n\n    subClass.prototype = Object.create(superClass === null ? null : superClass.prototype, {\n      constructor: {\n        value: subClass,\n        writable: true,\n        configurable: true\n      }\n    });\n\n    if (superClass !== null) {\n      setPrototypeOf(subClass, superClass);\n    }\n  }\n\n  function taggedTemplateLiteralLoose(strings, raw) {\n    if (!raw) {\n      raw = strings.slice(0);\n    }\n\n    strings.raw = raw;\n    return strings;\n  }\n\n  function _defineProperties(target, props) {\n    for (var i = 0; i < props.length; i++) {\n      var descriptor = props[i];\n      descriptor.enumerable = descriptor.enumerable || false;\n      descriptor.configurable = true;\n      if ('value' in descriptor) descriptor.writable = true;\n      Object.defineProperty(target, descriptor.key, descriptor);\n    }\n  }\n  /*\n    Differs from default implementation by avoiding boolean coercion of\n    `protoProps` and `staticProps`.\n  */\n\n\n  function createClass(Constructor, protoProps, staticProps) {\n    if (protoProps !== null && protoProps !== undefined) {\n      _defineProperties(Constructor.prototype, protoProps);\n    }\n\n    if (staticProps !== null && staticProps !== undefined) {\n      _defineProperties(Constructor, staticProps);\n    }\n\n    return Constructor;\n  }\n\n  function assertThisInitialized(self) {\n    if (true\n    /* DEBUG */\n    && self === void 0) {\n      throw new ReferenceError(\"this hasn't been initialised - super() hasn't been called\");\n    }\n\n    return self;\n  }\n  /*\n    Adds `DEBUG` guard to error being thrown, and avoids boolean coercion of `call`.\n  */\n\n\n  function possibleConstructorReturn(self, call) {\n    if (typeof call === 'object' && call !== null || typeof call === 'function') {\n      return call;\n    }\n\n    return assertThisInitialized(self);\n  }\n\n  function objectDestructuringEmpty(obj) {\n    if (true\n    /* DEBUG */\n    && (obj === null || obj === undefined)) {\n      throw new TypeError('Cannot destructure undefined');\n    }\n  }\n  /*\n    Differs from default implementation by checking for _any_ `Reflect.construct`\n    (the default implementation tries to ensure that `Reflect.construct` is truly\n    the native one).\n  \n    Original source: https://github.com/babel/babel/blob/v7.9.2/packages/babel-helpers/src/helpers.js#L738-L757\n  */\n\n\n  function createSuper(Derived) {\n    return function () {\n      var Super = getPrototypeOf(Derived);\n      var result;\n\n      if (hasReflectConstruct) {\n        // NOTE: This doesn't work if this.__proto__.constructor has been modified.\n        var NewTarget = getPrototypeOf(this).constructor;\n        result = Reflect.construct(Super, arguments, NewTarget);\n      } else {\n        result = Super.apply(this, arguments);\n      }\n\n      return possibleConstructorReturn(this, result);\n    };\n  }\n  /*\n    Does not differ from default implementation.\n  */\n\n\n  function arrayLikeToArray(arr, len) {\n    if (len == null || len > arr.length) len = arr.length;\n    var arr2 = new Array(len);\n\n    for (var i = 0; i < len; i++) {\n      arr2[i] = arr[i];\n    }\n\n    return arr2;\n  }\n  /*\n    Does not differ from default implementation.\n  */\n\n\n  function unsupportedIterableToArray(o, minLen) {\n    if (!o) return;\n    if (typeof o === 'string') return arrayLikeToArray(o, minLen);\n    var n = Object.prototype.toString.call(o).slice(8, -1);\n    if (n === 'Object' && o.constructor) n = o.constructor.name;\n    if (n === 'Map' || n === 'Set') return Array.from(n);\n    if (n === 'Arguments' || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return arrayLikeToArray(o, minLen);\n  }\n  /*\n    Does not differ from default implementation.\n  */\n\n\n  function createForOfIteratorHelperLoose(o) {\n    var i = 0;\n\n    if (typeof Symbol === 'undefined' || o[Symbol.iterator] == null) {\n      // Fallback for engines without symbol support\n      if (Array.isArray(o) || (o = unsupportedIterableToArray(o))) return function () {\n        if (i >= o.length) return {\n          done: true\n        };\n        return {\n          done: false,\n          value: o[i++]\n        };\n      };\n      throw new TypeError('Invalid attempt to iterate non-iterable instance.\\\\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.');\n    }\n\n    i = o[Symbol.iterator]();\n    return i.next.bind(i);\n  }\n});","define(\"ember-testing/index\", [\"exports\", \"ember-testing/lib/test\", \"ember-testing/lib/adapters/adapter\", \"ember-testing/lib/setup_for_testing\", \"ember-testing/lib/adapters/qunit\", \"ember-testing/lib/support\", \"ember-testing/lib/ext/application\", \"ember-testing/lib/ext/rsvp\", \"ember-testing/lib/helpers\", \"ember-testing/lib/initializers\"], function (_exports, _test, _adapter, _setup_for_testing, _qunit, _support, _application, _rsvp, _helpers, _initializers) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"Test\", {\n    enumerable: true,\n    get: function () {\n      return _test.default;\n    }\n  });\n  Object.defineProperty(_exports, \"Adapter\", {\n    enumerable: true,\n    get: function () {\n      return _adapter.default;\n    }\n  });\n  Object.defineProperty(_exports, \"setupForTesting\", {\n    enumerable: true,\n    get: function () {\n      return _setup_for_testing.default;\n    }\n  });\n  Object.defineProperty(_exports, \"QUnitAdapter\", {\n    enumerable: true,\n    get: function () {\n      return _qunit.default;\n    }\n  });\n});","define(\"ember-testing/lib/adapters/adapter\", [\"exports\", \"@ember/-internals/runtime\"], function (_exports, _runtime) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  function K() {\n    return this;\n  }\n  /**\n   @module @ember/test\n  */\n\n  /**\n    The primary purpose of this class is to create hooks that can be implemented\n    by an adapter for various test frameworks.\n  \n    @class TestAdapter\n    @public\n  */\n\n\n  var _default = _runtime.Object.extend({\n    /**\n      This callback will be called whenever an async operation is about to start.\n       Override this to call your framework's methods that handle async\n      operations.\n       @public\n      @method asyncStart\n    */\n    asyncStart: K,\n\n    /**\n      This callback will be called whenever an async operation has completed.\n       @public\n      @method asyncEnd\n    */\n    asyncEnd: K,\n\n    /**\n      Override this method with your testing framework's false assertion.\n      This function is called whenever an exception occurs causing the testing\n      promise to fail.\n       QUnit example:\n       ```javascript\n        exception: function(error) {\n          ok(false, error);\n        };\n      ```\n       @public\n      @method exception\n      @param {String} error The exception to be raised.\n    */\n    exception(error) {\n      throw error;\n    }\n\n  });\n\n  _exports.default = _default;\n});","define(\"ember-testing/lib/adapters/qunit\", [\"exports\", \"@ember/-internals/utils\", \"ember-testing/lib/adapters/adapter\"], function (_exports, _utils, _adapter) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /* globals QUnit */\n\n  /**\n     @module ember\n  */\n\n  /**\n    This class implements the methods defined by TestAdapter for the\n    QUnit testing framework.\n  \n    @class QUnitAdapter\n    @namespace Ember.Test\n    @extends TestAdapter\n    @public\n  */\n  var _default = _adapter.default.extend({\n    init() {\n      this.doneCallbacks = [];\n    },\n\n    asyncStart() {\n      if (typeof QUnit.stop === 'function') {\n        // very old QUnit version\n        QUnit.stop();\n      } else {\n        this.doneCallbacks.push(QUnit.config.current ? QUnit.config.current.assert.async() : null);\n      }\n    },\n\n    asyncEnd() {\n      // checking for QUnit.stop here (even though we _need_ QUnit.start) because\n      // QUnit.start() still exists in QUnit 2.x (it just throws an error when calling\n      // inside a test context)\n      if (typeof QUnit.stop === 'function') {\n        QUnit.start();\n      } else {\n        var done = this.doneCallbacks.pop(); // This can be null if asyncStart() was called outside of a test\n\n        if (done) {\n          done();\n        }\n      }\n    },\n\n    exception(error) {\n      QUnit.config.current.assert.ok(false, (0, _utils.inspect)(error));\n    }\n\n  });\n\n  _exports.default = _default;\n});","define(\"ember-testing/lib/events\", [\"exports\", \"@ember/runloop\", \"@ember/polyfills\", \"ember-testing/lib/helpers/-is-form-control\"], function (_exports, _runloop, _polyfills, _isFormControl) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.focus = focus;\n  _exports.fireEvent = fireEvent;\n  var DEFAULT_EVENT_OPTIONS = {\n    canBubble: true,\n    cancelable: true\n  };\n  var KEYBOARD_EVENT_TYPES = ['keydown', 'keypress', 'keyup'];\n  var MOUSE_EVENT_TYPES = ['click', 'mousedown', 'mouseup', 'dblclick', 'mouseenter', 'mouseleave', 'mousemove', 'mouseout', 'mouseover'];\n\n  function focus(el) {\n    if (!el) {\n      return;\n    }\n\n    if (el.isContentEditable || (0, _isFormControl.default)(el)) {\n      var type = el.getAttribute('type');\n\n      if (type !== 'checkbox' && type !== 'radio' && type !== 'hidden') {\n        (0, _runloop.run)(null, function () {\n          var browserIsNotFocused = document.hasFocus && !document.hasFocus(); // makes `document.activeElement` be `element`. If the browser is focused, it also fires a focus event\n\n          el.focus(); // Firefox does not trigger the `focusin` event if the window\n          // does not have focus. If the document does not have focus then\n          // fire `focusin` event as well.\n\n          if (browserIsNotFocused) {\n            // if the browser is not focused the previous `el.focus()` didn't fire an event, so we simulate it\n            fireEvent(el, 'focus', {\n              bubbles: false\n            });\n            fireEvent(el, 'focusin');\n          }\n        });\n      }\n    }\n  }\n\n  function fireEvent(element, type, options = {}) {\n    if (!element) {\n      return;\n    }\n\n    var event;\n\n    if (KEYBOARD_EVENT_TYPES.indexOf(type) > -1) {\n      event = buildKeyboardEvent(type, options);\n    } else if (MOUSE_EVENT_TYPES.indexOf(type) > -1) {\n      var rect = element.getBoundingClientRect();\n      var x = rect.left + 1;\n      var y = rect.top + 1;\n      var simulatedCoordinates = {\n        screenX: x + 5,\n        screenY: y + 95,\n        clientX: x,\n        clientY: y\n      };\n      event = buildMouseEvent(type, (0, _polyfills.assign)(simulatedCoordinates, options));\n    } else {\n      event = buildBasicEvent(type, options);\n    }\n\n    element.dispatchEvent(event);\n  }\n\n  function buildBasicEvent(type, options = {}) {\n    var event = document.createEvent('Events'); // Event.bubbles is read only\n\n    var bubbles = options.bubbles !== undefined ? options.bubbles : true;\n    var cancelable = options.cancelable !== undefined ? options.cancelable : true;\n    delete options.bubbles;\n    delete options.cancelable;\n    event.initEvent(type, bubbles, cancelable);\n    (0, _polyfills.assign)(event, options);\n    return event;\n  }\n\n  function buildMouseEvent(type, options = {}) {\n    var event;\n\n    try {\n      event = document.createEvent('MouseEvents');\n      var eventOpts = (0, _polyfills.assign)({}, DEFAULT_EVENT_OPTIONS, options);\n      event.initMouseEvent(type, eventOpts.canBubble, eventOpts.cancelable, window, eventOpts.detail, eventOpts.screenX, eventOpts.screenY, eventOpts.clientX, eventOpts.clientY, eventOpts.ctrlKey, eventOpts.altKey, eventOpts.shiftKey, eventOpts.metaKey, eventOpts.button, eventOpts.relatedTarget);\n    } catch (e) {\n      event = buildBasicEvent(type, options);\n    }\n\n    return event;\n  }\n\n  function buildKeyboardEvent(type, options = {}) {\n    var event;\n\n    try {\n      event = document.createEvent('KeyEvents');\n      var eventOpts = (0, _polyfills.assign)({}, DEFAULT_EVENT_OPTIONS, options);\n      event.initKeyEvent(type, eventOpts.canBubble, eventOpts.cancelable, window, eventOpts.ctrlKey, eventOpts.altKey, eventOpts.shiftKey, eventOpts.metaKey, eventOpts.keyCode, eventOpts.charCode);\n    } catch (e) {\n      event = buildBasicEvent(type, options);\n    }\n\n    return event;\n  }\n});","define(\"ember-testing/lib/ext/application\", [\"@ember/application\", \"ember-testing/lib/setup_for_testing\", \"ember-testing/lib/test/helpers\", \"ember-testing/lib/test/promise\", \"ember-testing/lib/test/run\", \"ember-testing/lib/test/on_inject_helpers\", \"ember-testing/lib/test/adapter\"], function (_application, _setup_for_testing, _helpers, _promise, _run, _on_inject_helpers, _adapter) {\n  \"use strict\";\n\n  _application.default.reopen({\n    /**\n     This property contains the testing helpers for the current application. These\n     are created once you call `injectTestHelpers` on your `Application`\n     instance. The included helpers are also available on the `window` object by\n     default, but can be used from this object on the individual application also.\n       @property testHelpers\n      @type {Object}\n      @default {}\n      @public\n    */\n    testHelpers: {},\n\n    /**\n     This property will contain the original methods that were registered\n     on the `helperContainer` before `injectTestHelpers` is called.\n      When `removeTestHelpers` is called, these methods are restored to the\n     `helperContainer`.\n       @property originalMethods\n      @type {Object}\n      @default {}\n      @private\n      @since 1.3.0\n    */\n    originalMethods: {},\n\n    /**\n    This property indicates whether or not this application is currently in\n    testing mode. This is set when `setupForTesting` is called on the current\n    application.\n     @property testing\n    @type {Boolean}\n    @default false\n    @since 1.3.0\n    @public\n    */\n    testing: false,\n\n    /**\n      This hook defers the readiness of the application, so that you can start\n      the app when your tests are ready to run. It also sets the router's\n      location to 'none', so that the window's location will not be modified\n      (preventing both accidental leaking of state between tests and interference\n      with your testing framework). `setupForTesting` should only be called after\n      setting a custom `router` class (for example `App.Router = Router.extend(`).\n       Example:\n       ```\n      App.setupForTesting();\n      ```\n       @method setupForTesting\n      @public\n    */\n    setupForTesting() {\n      (0, _setup_for_testing.default)();\n      this.testing = true;\n      this.resolveRegistration('router:main').reopen({\n        location: 'none'\n      });\n    },\n\n    /**\n      This will be used as the container to inject the test helpers into. By\n      default the helpers are injected into `window`.\n       @property helperContainer\n      @type {Object} The object to be used for test helpers.\n      @default window\n      @since 1.2.0\n      @private\n    */\n    helperContainer: null,\n\n    /**\n      This injects the test helpers into the `helperContainer` object. If an object is provided\n      it will be used as the helperContainer. If `helperContainer` is not set it will default\n      to `window`. If a function of the same name has already been defined it will be cached\n      (so that it can be reset if the helper is removed with `unregisterHelper` or\n      `removeTestHelpers`).\n       Any callbacks registered with `onInjectHelpers` will be called once the\n      helpers have been injected.\n       Example:\n      ```\n      App.injectTestHelpers();\n      ```\n       @method injectTestHelpers\n      @public\n    */\n    injectTestHelpers(helperContainer) {\n      if (helperContainer) {\n        this.helperContainer = helperContainer;\n      } else {\n        this.helperContainer = window;\n      }\n\n      this.reopen({\n        willDestroy() {\n          this._super(...arguments);\n\n          this.removeTestHelpers();\n        }\n\n      });\n      this.testHelpers = {};\n\n      for (var name in _helpers.helpers) {\n        this.originalMethods[name] = this.helperContainer[name];\n        this.testHelpers[name] = this.helperContainer[name] = helper(this, name);\n        protoWrap(_promise.default.prototype, name, helper(this, name), _helpers.helpers[name].meta.wait);\n      }\n\n      (0, _on_inject_helpers.invokeInjectHelpersCallbacks)(this);\n    },\n\n    /**\n      This removes all helpers that have been registered, and resets and functions\n      that were overridden by the helpers.\n       Example:\n       ```javascript\n      App.removeTestHelpers();\n      ```\n       @public\n      @method removeTestHelpers\n    */\n    removeTestHelpers() {\n      if (!this.helperContainer) {\n        return;\n      }\n\n      for (var name in _helpers.helpers) {\n        this.helperContainer[name] = this.originalMethods[name];\n        delete _promise.default.prototype[name];\n        delete this.testHelpers[name];\n        delete this.originalMethods[name];\n      }\n    }\n\n  }); // This method is no longer needed\n  // But still here for backwards compatibility\n  // of helper chaining\n\n\n  function protoWrap(proto, name, callback, isAsync) {\n    proto[name] = function (...args) {\n      if (isAsync) {\n        return callback.apply(this, args);\n      } else {\n        return this.then(function () {\n          return callback.apply(this, args);\n        });\n      }\n    };\n  }\n\n  function helper(app, name) {\n    var fn = _helpers.helpers[name].method;\n    var meta = _helpers.helpers[name].meta;\n\n    if (!meta.wait) {\n      return (...args) => fn.apply(app, [app, ...args]);\n    }\n\n    return (...args) => {\n      var lastPromise = (0, _run.default)(() => (0, _promise.resolve)((0, _promise.getLastPromise)())); // wait for last helper's promise to resolve and then\n      // execute. To be safe, we need to tell the adapter we're going\n      // asynchronous here, because fn may not be invoked before we\n      // return.\n\n      (0, _adapter.asyncStart)();\n      return lastPromise.then(() => fn.apply(app, [app, ...args])).finally(_adapter.asyncEnd);\n    };\n  }\n});","define(\"ember-testing/lib/ext/rsvp\", [\"exports\", \"@ember/-internals/runtime\", \"@ember/runloop\", \"@ember/debug\", \"ember-testing/lib/test/adapter\"], function (_exports, _runtime, _runloop, _debug, _adapter) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  _runtime.RSVP.configure('async', function (callback, promise) {\n    // if schedule will cause autorun, we need to inform adapter\n    if ((0, _debug.isTesting)() && !_runloop.backburner.currentInstance) {\n      (0, _adapter.asyncStart)();\n\n      _runloop.backburner.schedule('actions', () => {\n        (0, _adapter.asyncEnd)();\n        callback(promise);\n      });\n    } else {\n      _runloop.backburner.schedule('actions', () => callback(promise));\n    }\n  });\n\n  var _default = _runtime.RSVP;\n  _exports.default = _default;\n});","define(\"ember-testing/lib/helpers\", [\"ember-testing/lib/test/helpers\", \"ember-testing/lib/helpers/and_then\", \"ember-testing/lib/helpers/click\", \"ember-testing/lib/helpers/current_path\", \"ember-testing/lib/helpers/current_route_name\", \"ember-testing/lib/helpers/current_url\", \"ember-testing/lib/helpers/fill_in\", \"ember-testing/lib/helpers/find\", \"ember-testing/lib/helpers/find_with_assert\", \"ember-testing/lib/helpers/key_event\", \"ember-testing/lib/helpers/pause_test\", \"ember-testing/lib/helpers/trigger_event\", \"ember-testing/lib/helpers/visit\", \"ember-testing/lib/helpers/wait\"], function (_helpers, _and_then, _click, _current_path, _current_route_name, _current_url, _fill_in, _find, _find_with_assert, _key_event, _pause_test, _trigger_event, _visit, _wait) {\n  \"use strict\";\n\n  (0, _helpers.registerAsyncHelper)('visit', _visit.default);\n  (0, _helpers.registerAsyncHelper)('click', _click.default);\n  (0, _helpers.registerAsyncHelper)('keyEvent', _key_event.default);\n  (0, _helpers.registerAsyncHelper)('fillIn', _fill_in.default);\n  (0, _helpers.registerAsyncHelper)('wait', _wait.default);\n  (0, _helpers.registerAsyncHelper)('andThen', _and_then.default);\n  (0, _helpers.registerAsyncHelper)('pauseTest', _pause_test.pauseTest);\n  (0, _helpers.registerAsyncHelper)('triggerEvent', _trigger_event.default);\n  (0, _helpers.registerHelper)('find', _find.default);\n  (0, _helpers.registerHelper)('findWithAssert', _find_with_assert.default);\n  (0, _helpers.registerHelper)('currentRouteName', _current_route_name.default);\n  (0, _helpers.registerHelper)('currentPath', _current_path.default);\n  (0, _helpers.registerHelper)('currentURL', _current_url.default);\n  (0, _helpers.registerHelper)('resumeTest', _pause_test.resumeTest);\n});","define(\"ember-testing/lib/helpers/-is-form-control\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = isFormControl;\n  var FORM_CONTROL_TAGS = ['INPUT', 'BUTTON', 'SELECT', 'TEXTAREA'];\n  /**\n    @private\n    @param {Element} element the element to check\n    @returns {boolean} `true` when the element is a form control, `false` otherwise\n  */\n\n  function isFormControl(element) {\n    var {\n      tagName,\n      type\n    } = element;\n\n    if (type === 'hidden') {\n      return false;\n    }\n\n    return FORM_CONTROL_TAGS.indexOf(tagName) > -1;\n  }\n});","define(\"ember-testing/lib/helpers/and_then\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = andThen;\n\n  function andThen(app, callback) {\n    return app.testHelpers.wait(callback(app));\n  }\n});","define(\"ember-testing/lib/helpers/click\", [\"exports\", \"ember-testing/lib/events\"], function (_exports, _events) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = click;\n\n  /**\n  @module ember\n  */\n\n  /**\n    Clicks an element and triggers any actions triggered by the element's `click`\n    event.\n  \n    Example:\n  \n    ```javascript\n    click('.some-jQuery-selector').then(function() {\n      // assert something\n    });\n    ```\n  \n    @method click\n    @param {String} selector jQuery selector for finding element on the DOM\n    @param {Object} context A DOM Element, Document, or jQuery to use as context\n    @return {RSVP.Promise<undefined>}\n    @public\n  */\n  function click(app, selector, context) {\n    var $el = app.testHelpers.findWithAssert(selector, context);\n    var el = $el[0];\n    (0, _events.fireEvent)(el, 'mousedown');\n    (0, _events.focus)(el);\n    (0, _events.fireEvent)(el, 'mouseup');\n    (0, _events.fireEvent)(el, 'click');\n    return app.testHelpers.wait();\n  }\n});","define(\"ember-testing/lib/helpers/current_path\", [\"exports\", \"@ember/-internals/metal\"], function (_exports, _metal) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = currentPath;\n\n  /**\n  @module ember\n  */\n\n  /**\n    Returns the current path.\n  \n  Example:\n  \n  ```javascript\n  function validateURL() {\n    equal(currentPath(), 'some.path.index', \"correct path was transitioned into.\");\n  }\n  \n  click('#some-link-id').then(validateURL);\n  ```\n  \n  @method currentPath\n  @return {Object} The currently active path.\n  @since 1.5.0\n  @public\n  */\n  function currentPath(app) {\n    var routingService = app.__container__.lookup('service:-routing');\n\n    return (0, _metal.get)(routingService, 'currentPath');\n  }\n});","define(\"ember-testing/lib/helpers/current_route_name\", [\"exports\", \"@ember/-internals/metal\"], function (_exports, _metal) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = currentRouteName;\n\n  /**\n  @module ember\n  */\n\n  /**\n    Returns the currently active route name.\n  \n  Example:\n  \n  ```javascript\n  function validateRouteName() {\n    equal(currentRouteName(), 'some.path', \"correct route was transitioned into.\");\n  }\n  visit('/some/path').then(validateRouteName)\n  ```\n  \n  @method currentRouteName\n  @return {Object} The name of the currently active route.\n  @since 1.5.0\n  @public\n  */\n  function currentRouteName(app) {\n    var routingService = app.__container__.lookup('service:-routing');\n\n    return (0, _metal.get)(routingService, 'currentRouteName');\n  }\n});","define(\"ember-testing/lib/helpers/current_url\", [\"exports\", \"@ember/-internals/metal\"], function (_exports, _metal) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = currentURL;\n\n  /**\n  @module ember\n  */\n\n  /**\n    Returns the current URL.\n  \n  Example:\n  \n  ```javascript\n  function validateURL() {\n    equal(currentURL(), '/some/path', \"correct URL was transitioned into.\");\n  }\n  \n  click('#some-link-id').then(validateURL);\n  ```\n  \n  @method currentURL\n  @return {Object} The currently active URL.\n  @since 1.5.0\n  @public\n  */\n  function currentURL(app) {\n    var router = app.__container__.lookup('router:main');\n\n    return (0, _metal.get)(router, 'location').getURL();\n  }\n});","define(\"ember-testing/lib/helpers/fill_in\", [\"exports\", \"ember-testing/lib/events\", \"ember-testing/lib/helpers/-is-form-control\"], function (_exports, _events, _isFormControl) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = fillIn;\n\n  /**\n  @module ember\n  */\n\n  /**\n    Fills in an input element with some text.\n  \n    Example:\n  \n    ```javascript\n    fillIn('#email', 'you@example.com').then(function() {\n      // assert something\n    });\n    ```\n  \n    @method fillIn\n    @param {String} selector jQuery selector finding an input element on the DOM\n    to fill text with\n    @param {String} text text to place inside the input element\n    @return {RSVP.Promise<undefined>}\n    @public\n  */\n  function fillIn(app, selector, contextOrText, text) {\n    var $el, el, context;\n\n    if (text === undefined) {\n      text = contextOrText;\n    } else {\n      context = contextOrText;\n    }\n\n    $el = app.testHelpers.findWithAssert(selector, context);\n    el = $el[0];\n    (0, _events.focus)(el);\n\n    if ((0, _isFormControl.default)(el)) {\n      el.value = text;\n    } else {\n      el.innerHTML = text;\n    }\n\n    (0, _events.fireEvent)(el, 'input');\n    (0, _events.fireEvent)(el, 'change');\n    return app.testHelpers.wait();\n  }\n});","define(\"ember-testing/lib/helpers/find\", [\"exports\", \"@ember/-internals/metal\", \"@ember/debug\", \"@ember/-internals/views\"], function (_exports, _metal, _debug, _views) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = find;\n\n  /**\n  @module ember\n  */\n\n  /**\n    Finds an element in the context of the app's container element. A simple alias\n    for `app.$(selector)`.\n  \n    Example:\n  \n    ```javascript\n    var $el = find('.my-selector');\n    ```\n  \n    With the `context` param:\n  \n    ```javascript\n    var $el = find('.my-selector', '.parent-element-class');\n    ```\n  \n    @method find\n    @param {String} selector jQuery selector for element lookup\n    @param {String} [context] (optional) jQuery selector that will limit the selector\n                              argument to find only within the context's children\n    @return {Object} DOM element representing the results of the query\n    @public\n  */\n  function find(app, selector, context) {\n    if (_views.jQueryDisabled) {\n      (true && !(false) && (0, _debug.assert)('If jQuery is disabled, please import and use helpers from @ember/test-helpers [https://github.com/emberjs/ember-test-helpers]. Note: `find` is not an available helper.'));\n    }\n\n    var $el;\n    context = context || (0, _metal.get)(app, 'rootElement');\n    $el = app.$(selector, context);\n    return $el;\n  }\n});","define(\"ember-testing/lib/helpers/find_with_assert\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = findWithAssert;\n\n  /**\n  @module ember\n  */\n\n  /**\n    Like `find`, but throws an error if the element selector returns no results.\n  \n    Example:\n  \n    ```javascript\n    var $el = findWithAssert('.doesnt-exist'); // throws error\n    ```\n  \n    With the `context` param:\n  \n    ```javascript\n    var $el = findWithAssert('.selector-id', '.parent-element-class'); // assert will pass\n    ```\n  \n    @method findWithAssert\n    @param {String} selector jQuery selector string for finding an element within\n    the DOM\n    @param {String} [context] (optional) jQuery selector that will limit the\n    selector argument to find only within the context's children\n    @return {Object} jQuery object representing the results of the query\n    @throws {Error} throws error if object returned has a length of 0\n    @public\n  */\n  function findWithAssert(app, selector, context) {\n    var $el = app.testHelpers.find(selector, context);\n\n    if ($el.length === 0) {\n      throw new Error('Element ' + selector + ' not found.');\n    }\n\n    return $el;\n  }\n});","define(\"ember-testing/lib/helpers/key_event\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = keyEvent;\n\n  /**\n  @module ember\n  */\n\n  /**\n    Simulates a key event, e.g. `keypress`, `keydown`, `keyup` with the desired keyCode\n    Example:\n    ```javascript\n    keyEvent('.some-jQuery-selector', 'keypress', 13).then(function() {\n     // assert something\n    });\n    ```\n    @method keyEvent\n    @param {String} selector jQuery selector for finding element on the DOM\n    @param {String} type the type of key event, e.g. `keypress`, `keydown`, `keyup`\n    @param {Number} keyCode the keyCode of the simulated key event\n    @return {RSVP.Promise<undefined>}\n    @since 1.5.0\n    @public\n  */\n  function keyEvent(app, selector, contextOrType, typeOrKeyCode, keyCode) {\n    var context, type;\n\n    if (keyCode === undefined) {\n      context = null;\n      keyCode = typeOrKeyCode;\n      type = contextOrType;\n    } else {\n      context = contextOrType;\n      type = typeOrKeyCode;\n    }\n\n    return app.testHelpers.triggerEvent(selector, context, type, {\n      keyCode,\n      which: keyCode\n    });\n  }\n});","define(\"ember-testing/lib/helpers/pause_test\", [\"exports\", \"@ember/-internals/runtime\", \"@ember/debug\"], function (_exports, _runtime, _debug) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.resumeTest = resumeTest;\n  _exports.pauseTest = pauseTest;\n\n  /**\n  @module ember\n  */\n  var resume;\n  /**\n   Resumes a test paused by `pauseTest`.\n  \n   @method resumeTest\n   @return {void}\n   @public\n  */\n\n  function resumeTest() {\n    (true && !(resume) && (0, _debug.assert)('Testing has not been paused. There is nothing to resume.', resume));\n    resume();\n    resume = undefined;\n  }\n  /**\n   Pauses the current test - this is useful for debugging while testing or for test-driving.\n   It allows you to inspect the state of your application at any point.\n   Example (The test will pause before clicking the button):\n  \n   ```javascript\n   visit('/')\n   return pauseTest();\n   click('.btn');\n   ```\n  \n   You may want to turn off the timeout before pausing.\n  \n   qunit (timeout available to use as of 2.4.0):\n  \n   ```\n   visit('/');\n   assert.timeout(0);\n   return pauseTest();\n   click('.btn');\n   ```\n  \n   mocha (timeout happens automatically as of ember-mocha v0.14.0):\n  \n   ```\n   visit('/');\n   this.timeout(0);\n   return pauseTest();\n   click('.btn');\n   ```\n  \n  \n   @since 1.9.0\n   @method pauseTest\n   @return {Object} A promise that will never resolve\n   @public\n  */\n\n\n  function pauseTest() {\n    (0, _debug.info)('Testing paused. Use `resumeTest()` to continue.');\n    return new _runtime.RSVP.Promise(resolve => {\n      resume = resolve;\n    }, 'TestAdapter paused promise');\n  }\n});","define(\"ember-testing/lib/helpers/trigger_event\", [\"exports\", \"ember-testing/lib/events\"], function (_exports, _events) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = triggerEvent;\n\n  /**\n  @module ember\n  */\n\n  /**\n    Triggers the given DOM event on the element identified by the provided selector.\n    Example:\n    ```javascript\n    triggerEvent('#some-elem-id', 'blur');\n    ```\n    This is actually used internally by the `keyEvent` helper like so:\n    ```javascript\n    triggerEvent('#some-elem-id', 'keypress', { keyCode: 13 });\n    ```\n   @method triggerEvent\n   @param {String} selector jQuery selector for finding element on the DOM\n   @param {String} [context] jQuery selector that will limit the selector\n                             argument to find only within the context's children\n   @param {String} type The event type to be triggered.\n   @param {Object} [options] The options to be passed to jQuery.Event.\n   @return {RSVP.Promise<undefined>}\n   @since 1.5.0\n   @public\n  */\n  function triggerEvent(app, selector, contextOrType, typeOrOptions, possibleOptions) {\n    var arity = arguments.length;\n    var context, type, options;\n\n    if (arity === 3) {\n      // context and options are optional, so this is\n      // app, selector, type\n      context = null;\n      type = contextOrType;\n      options = {};\n    } else if (arity === 4) {\n      // context and options are optional, so this is\n      if (typeof typeOrOptions === 'object') {\n        // either\n        // app, selector, type, options\n        context = null;\n        type = contextOrType;\n        options = typeOrOptions;\n      } else {\n        // or\n        // app, selector, context, type\n        context = contextOrType;\n        type = typeOrOptions;\n        options = {};\n      }\n    } else {\n      context = contextOrType;\n      type = typeOrOptions;\n      options = possibleOptions;\n    }\n\n    var $el = app.testHelpers.findWithAssert(selector, context);\n    var el = $el[0];\n    (0, _events.fireEvent)(el, type, options);\n    return app.testHelpers.wait();\n  }\n});","define(\"ember-testing/lib/helpers/visit\", [\"exports\", \"@ember/runloop\"], function (_exports, _runloop) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = visit;\n\n  /**\n    Loads a route, sets up any controllers, and renders any templates associated\n    with the route as though a real user had triggered the route change while\n    using your app.\n  \n    Example:\n  \n    ```javascript\n    visit('posts/index').then(function() {\n      // assert something\n    });\n    ```\n  \n    @method visit\n    @param {String} url the name of the route\n    @return {RSVP.Promise<undefined>}\n    @public\n  */\n  function visit(app, url) {\n    var router = app.__container__.lookup('router:main');\n\n    var shouldHandleURL = false;\n    app.boot().then(() => {\n      router.location.setURL(url);\n\n      if (shouldHandleURL) {\n        (0, _runloop.run)(app.__deprecatedInstance__, 'handleURL', url);\n      }\n    });\n\n    if (app._readinessDeferrals > 0) {\n      router.initialURL = url;\n      (0, _runloop.run)(app, 'advanceReadiness');\n      delete router.initialURL;\n    } else {\n      shouldHandleURL = true;\n    }\n\n    return app.testHelpers.wait();\n  }\n});","define(\"ember-testing/lib/helpers/wait\", [\"exports\", \"ember-testing/lib/test/waiters\", \"@ember/-internals/runtime\", \"@ember/runloop\", \"ember-testing/lib/test/pending_requests\"], function (_exports, _waiters, _runtime, _runloop, _pending_requests) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = wait;\n\n  /**\n  @module ember\n  */\n\n  /**\n    Causes the run loop to process any pending events. This is used to ensure that\n    any async operations from other helpers (or your assertions) have been processed.\n  \n    This is most often used as the return value for the helper functions (see 'click',\n    'fillIn','visit',etc). However, there is a method to register a test helper which\n    utilizes this method without the need to actually call `wait()` in your helpers.\n  \n    The `wait` helper is built into `registerAsyncHelper` by default. You will not need\n    to `return app.testHelpers.wait();` - the wait behavior is provided for you.\n  \n    Example:\n  \n    ```javascript\n    import { registerAsyncHelper } from '@ember/test';\n  \n    registerAsyncHelper('loginUser', function(app, username, password) {\n      visit('secured/path/here')\n        .fillIn('#username', username)\n        .fillIn('#password', password)\n        .click('.submit');\n    });\n    ```\n  \n    @method wait\n    @param {Object} value The value to be returned.\n    @return {RSVP.Promise<any>} Promise that resolves to the passed value.\n    @public\n    @since 1.0.0\n  */\n  function wait(app, value) {\n    return new _runtime.RSVP.Promise(function (resolve) {\n      var router = app.__container__.lookup('router:main'); // Every 10ms, poll for the async thing to have finished\n\n\n      var watcher = setInterval(() => {\n        // 1. If the router is loading, keep polling\n        var routerIsLoading = router._routerMicrolib && Boolean(router._routerMicrolib.activeTransition);\n\n        if (routerIsLoading) {\n          return;\n        } // 2. If there are pending Ajax requests, keep polling\n\n\n        if ((0, _pending_requests.pendingRequests)()) {\n          return;\n        } // 3. If there are scheduled timers or we are inside of a run loop, keep polling\n\n\n        if ((0, _runloop.hasScheduledTimers)() || (0, _runloop.getCurrentRunLoop)()) {\n          return;\n        }\n\n        if ((0, _waiters.checkWaiters)()) {\n          return;\n        } // Stop polling\n\n\n        clearInterval(watcher); // Synchronously resolve the promise\n\n        (0, _runloop.run)(null, resolve, value);\n      }, 10);\n    });\n  }\n});","define(\"ember-testing/lib/initializers\", [\"@ember/application\"], function (_application) {\n  \"use strict\";\n\n  var name = 'deferReadiness in `testing` mode';\n  (0, _application.onLoad)('Ember.Application', function (Application) {\n    if (!Application.initializers[name]) {\n      Application.initializer({\n        name: name,\n\n        initialize(application) {\n          if (application.testing) {\n            application.deferReadiness();\n          }\n        }\n\n      });\n    }\n  });\n});","define(\"ember-testing/lib/setup_for_testing\", [\"exports\", \"@ember/debug\", \"@ember/-internals/views\", \"ember-testing/lib/test/adapter\", \"ember-testing/lib/test/pending_requests\", \"ember-testing/lib/adapters/adapter\", \"ember-testing/lib/adapters/qunit\"], function (_exports, _debug, _views, _adapter, _pending_requests, _adapter2, _qunit) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = setupForTesting;\n\n  /* global self */\n\n  /**\n    Sets Ember up for testing. This is useful to perform\n    basic setup steps in order to unit test.\n  \n    Use `App.setupForTesting` to perform integration tests (full\n    application testing).\n  \n    @method setupForTesting\n    @namespace Ember\n    @since 1.5.0\n    @private\n  */\n  function setupForTesting() {\n    (0, _debug.setTesting)(true);\n    var adapter = (0, _adapter.getAdapter)(); // if adapter is not manually set default to QUnit\n\n    if (!adapter) {\n      (0, _adapter.setAdapter)(typeof self.QUnit === 'undefined' ? _adapter2.default.create() : _qunit.default.create());\n    }\n\n    if (!_views.jQueryDisabled) {\n      (0, _views.jQuery)(document).off('ajaxSend', _pending_requests.incrementPendingRequests);\n      (0, _views.jQuery)(document).off('ajaxComplete', _pending_requests.decrementPendingRequests);\n      (0, _pending_requests.clearPendingRequests)();\n      (0, _views.jQuery)(document).on('ajaxSend', _pending_requests.incrementPendingRequests);\n      (0, _views.jQuery)(document).on('ajaxComplete', _pending_requests.decrementPendingRequests);\n    }\n  }\n});","define(\"ember-testing/lib/support\", [\"@ember/debug\", \"@ember/-internals/views\", \"@ember/-internals/browser-environment\"], function (_debug, _views, _browserEnvironment) {\n  \"use strict\";\n\n  /**\n    @module ember\n  */\n  var $ = _views.jQuery;\n  /**\n    This method creates a checkbox and triggers the click event to fire the\n    passed in handler. It is used to correct for a bug in older versions\n    of jQuery (e.g 1.8.3).\n  \n    @private\n    @method testCheckboxClick\n  */\n\n  function testCheckboxClick(handler) {\n    var input = document.createElement('input');\n    $(input).attr('type', 'checkbox').css({\n      position: 'absolute',\n      left: '-1000px',\n      top: '-1000px'\n    }).appendTo('body').on('click', handler).trigger('click').remove();\n  }\n\n  if (_browserEnvironment.hasDOM && !_views.jQueryDisabled) {\n    $(function () {\n      /*\n        Determine whether a checkbox checked using jQuery's \"click\" method will have\n        the correct value for its checked property.\n         If we determine that the current jQuery version exhibits this behavior,\n        patch it to work correctly as in the commit for the actual fix:\n        https://github.com/jquery/jquery/commit/1fb2f92.\n      */\n      testCheckboxClick(function () {\n        if (!this.checked && !$.event.special.click) {\n          $.event.special.click = {\n            // For checkbox, fire native event so checked state will be right\n            trigger() {\n              if (this.nodeName === 'INPUT' && this.type === 'checkbox' && this.click) {\n                this.click();\n                return false;\n              }\n            }\n\n          };\n        }\n      }); // Try again to verify that the patch took effect or blow up.\n\n      testCheckboxClick(function () {\n        (true && (0, _debug.warn)(\"clicked checkboxes should be checked! the jQuery patch didn't work\", this.checked, {\n          id: 'ember-testing.test-checkbox-click'\n        }));\n      });\n    });\n  }\n});","define(\"ember-testing/lib/test\", [\"exports\", \"ember-testing/lib/test/helpers\", \"ember-testing/lib/test/on_inject_helpers\", \"ember-testing/lib/test/promise\", \"ember-testing/lib/test/waiters\", \"ember-testing/lib/test/adapter\"], function (_exports, _helpers, _on_inject_helpers, _promise, _waiters, _adapter) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n    @module ember\n  */\n\n  /**\n    This is a container for an assortment of testing related functionality:\n  \n    * Choose your default test adapter (for your framework of choice).\n    * Register/Unregister additional test helpers.\n    * Setup callbacks to be fired when the test helpers are injected into\n      your application.\n  \n    @class Test\n    @namespace Ember\n    @public\n  */\n  var Test = {\n    /**\n      Hash containing all known test helpers.\n       @property _helpers\n      @private\n      @since 1.7.0\n    */\n    _helpers: _helpers.helpers,\n    registerHelper: _helpers.registerHelper,\n    registerAsyncHelper: _helpers.registerAsyncHelper,\n    unregisterHelper: _helpers.unregisterHelper,\n    onInjectHelpers: _on_inject_helpers.onInjectHelpers,\n    Promise: _promise.default,\n    promise: _promise.promise,\n    resolve: _promise.resolve,\n    registerWaiter: _waiters.registerWaiter,\n    unregisterWaiter: _waiters.unregisterWaiter,\n    checkWaiters: _waiters.checkWaiters\n  };\n  /**\n   Used to allow ember-testing to communicate with a specific testing\n   framework.\n  \n   You can manually set it before calling `App.setupForTesting()`.\n  \n   Example:\n  \n   ```javascript\n   Ember.Test.adapter = MyCustomAdapter.create()\n   ```\n  \n   If you do not set it, ember-testing will default to `Ember.Test.QUnitAdapter`.\n  \n   @public\n   @for Ember.Test\n   @property adapter\n   @type {Class} The adapter to be used.\n   @default Ember.Test.QUnitAdapter\n  */\n\n  Object.defineProperty(Test, 'adapter', {\n    get: _adapter.getAdapter,\n    set: _adapter.setAdapter\n  });\n  var _default = Test;\n  _exports.default = _default;\n});","define(\"ember-testing/lib/test/adapter\", [\"exports\", \"@ember/-internals/error-handling\"], function (_exports, _errorHandling) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.getAdapter = getAdapter;\n  _exports.setAdapter = setAdapter;\n  _exports.asyncStart = asyncStart;\n  _exports.asyncEnd = asyncEnd;\n  var adapter;\n\n  function getAdapter() {\n    return adapter;\n  }\n\n  function setAdapter(value) {\n    adapter = value;\n\n    if (value && typeof value.exception === 'function') {\n      (0, _errorHandling.setDispatchOverride)(adapterDispatch);\n    } else {\n      (0, _errorHandling.setDispatchOverride)(null);\n    }\n  }\n\n  function asyncStart() {\n    if (adapter) {\n      adapter.asyncStart();\n    }\n  }\n\n  function asyncEnd() {\n    if (adapter) {\n      adapter.asyncEnd();\n    }\n  }\n\n  function adapterDispatch(error) {\n    adapter.exception(error);\n    console.error(error.stack); // eslint-disable-line no-console\n  }\n});","define(\"ember-testing/lib/test/helpers\", [\"exports\", \"ember-testing/lib/test/promise\"], function (_exports, _promise) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.registerHelper = registerHelper;\n  _exports.registerAsyncHelper = registerAsyncHelper;\n  _exports.unregisterHelper = unregisterHelper;\n  _exports.helpers = void 0;\n  var helpers = {};\n  /**\n   @module @ember/test\n  */\n\n  /**\n    `registerHelper` is used to register a test helper that will be injected\n    when `App.injectTestHelpers` is called.\n  \n    The helper method will always be called with the current Application as\n    the first parameter.\n  \n    For example:\n  \n    ```javascript\n    import { registerHelper } from '@ember/test';\n    import { run } from '@ember/runloop';\n  \n    registerHelper('boot', function(app) {\n      run(app, app.advanceReadiness);\n    });\n    ```\n  \n    This helper can later be called without arguments because it will be\n    called with `app` as the first parameter.\n  \n    ```javascript\n    import Application from '@ember/application';\n  \n    App = Application.create();\n    App.injectTestHelpers();\n    boot();\n    ```\n  \n    @public\n    @for @ember/test\n    @static\n    @method registerHelper\n    @param {String} name The name of the helper method to add.\n    @param {Function} helperMethod\n    @param options {Object}\n  */\n\n  _exports.helpers = helpers;\n\n  function registerHelper(name, helperMethod) {\n    helpers[name] = {\n      method: helperMethod,\n      meta: {\n        wait: false\n      }\n    };\n  }\n  /**\n    `registerAsyncHelper` is used to register an async test helper that will be injected\n    when `App.injectTestHelpers` is called.\n  \n    The helper method will always be called with the current Application as\n    the first parameter.\n  \n    For example:\n  \n    ```javascript\n    import { registerAsyncHelper } from '@ember/test';\n    import { run } from '@ember/runloop';\n  \n    registerAsyncHelper('boot', function(app) {\n      run(app, app.advanceReadiness);\n    });\n    ```\n  \n    The advantage of an async helper is that it will not run\n    until the last async helper has completed.  All async helpers\n    after it will wait for it complete before running.\n  \n  \n    For example:\n  \n    ```javascript\n    import { registerAsyncHelper } from '@ember/test';\n  \n    registerAsyncHelper('deletePost', function(app, postId) {\n      click('.delete-' + postId);\n    });\n  \n    // ... in your test\n    visit('/post/2');\n    deletePost(2);\n    visit('/post/3');\n    deletePost(3);\n    ```\n  \n    @public\n    @for @ember/test\n    @method registerAsyncHelper\n    @param {String} name The name of the helper method to add.\n    @param {Function} helperMethod\n    @since 1.2.0\n  */\n\n\n  function registerAsyncHelper(name, helperMethod) {\n    helpers[name] = {\n      method: helperMethod,\n      meta: {\n        wait: true\n      }\n    };\n  }\n  /**\n    Remove a previously added helper method.\n  \n    Example:\n  \n    ```javascript\n    import { unregisterHelper } from '@ember/test';\n  \n    unregisterHelper('wait');\n    ```\n  \n    @public\n    @method unregisterHelper\n    @static\n    @for @ember/test\n    @param {String} name The helper to remove.\n  */\n\n\n  function unregisterHelper(name) {\n    delete helpers[name];\n    delete _promise.default.prototype[name];\n  }\n});","define(\"ember-testing/lib/test/on_inject_helpers\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.onInjectHelpers = onInjectHelpers;\n  _exports.invokeInjectHelpersCallbacks = invokeInjectHelpersCallbacks;\n  _exports.callbacks = void 0;\n  var callbacks = [];\n  /**\n    Used to register callbacks to be fired whenever `App.injectTestHelpers`\n    is called.\n  \n    The callback will receive the current application as an argument.\n  \n    Example:\n  \n    ```javascript\n    import $ from 'jquery';\n  \n    Ember.Test.onInjectHelpers(function() {\n      $(document).ajaxSend(function() {\n        Test.pendingRequests++;\n      });\n  \n      $(document).ajaxComplete(function() {\n        Test.pendingRequests--;\n      });\n    });\n    ```\n  \n    @public\n    @for Ember.Test\n    @method onInjectHelpers\n    @param {Function} callback The function to be called.\n  */\n\n  _exports.callbacks = callbacks;\n\n  function onInjectHelpers(callback) {\n    callbacks.push(callback);\n  }\n\n  function invokeInjectHelpersCallbacks(app) {\n    for (var i = 0; i < callbacks.length; i++) {\n      callbacks[i](app);\n    }\n  }\n});","define(\"ember-testing/lib/test/pending_requests\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.pendingRequests = pendingRequests;\n  _exports.clearPendingRequests = clearPendingRequests;\n  _exports.incrementPendingRequests = incrementPendingRequests;\n  _exports.decrementPendingRequests = decrementPendingRequests;\n  var requests = [];\n\n  function pendingRequests() {\n    return requests.length;\n  }\n\n  function clearPendingRequests() {\n    requests.length = 0;\n  }\n\n  function incrementPendingRequests(_, xhr) {\n    requests.push(xhr);\n  }\n\n  function decrementPendingRequests(_, xhr) {\n    setTimeout(function () {\n      for (var i = 0; i < requests.length; i++) {\n        if (xhr === requests[i]) {\n          requests.splice(i, 1);\n          break;\n        }\n      }\n    }, 0);\n  }\n});","define(\"ember-testing/lib/test/promise\", [\"exports\", \"@ember/-internals/runtime\", \"ember-testing/lib/test/run\"], function (_exports, _runtime, _run) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.promise = promise;\n  _exports.resolve = resolve;\n  _exports.getLastPromise = getLastPromise;\n  _exports.default = void 0;\n  var lastPromise;\n\n  class TestPromise extends _runtime.RSVP.Promise {\n    constructor() {\n      super(...arguments);\n      lastPromise = this;\n    }\n\n    then(_onFulfillment, ...args) {\n      var onFulfillment = typeof _onFulfillment === 'function' ? result => isolate(_onFulfillment, result) : undefined;\n      return super.then(onFulfillment, ...args);\n    }\n\n  }\n  /**\n    This returns a thenable tailored for testing.  It catches failed\n    `onSuccess` callbacks and invokes the `Ember.Test.adapter.exception`\n    callback in the last chained then.\n  \n    This method should be returned by async helpers such as `wait`.\n  \n    @public\n    @for Ember.Test\n    @method promise\n    @param {Function} resolver The function used to resolve the promise.\n    @param {String} label An optional string for identifying the promise.\n  */\n\n\n  _exports.default = TestPromise;\n\n  function promise(resolver, label) {\n    var fullLabel = `Ember.Test.promise: ${label || '<Unknown Promise>'}`;\n    return new TestPromise(resolver, fullLabel);\n  }\n  /**\n    Replacement for `Ember.RSVP.resolve`\n    The only difference is this uses\n    an instance of `Ember.Test.Promise`\n  \n    @public\n    @for Ember.Test\n    @method resolve\n    @param {Mixed} The value to resolve\n    @since 1.2.0\n  */\n\n\n  function resolve(result, label) {\n    return TestPromise.resolve(result, label);\n  }\n\n  function getLastPromise() {\n    return lastPromise;\n  } // This method isolates nested async methods\n  // so that they don't conflict with other last promises.\n  //\n  // 1. Set `Ember.Test.lastPromise` to null\n  // 2. Invoke method\n  // 3. Return the last promise created during method\n\n\n  function isolate(onFulfillment, result) {\n    // Reset lastPromise for nested helpers\n    lastPromise = null;\n    var value = onFulfillment(result);\n    var promise = lastPromise;\n    lastPromise = null; // If the method returned a promise\n    // return that promise. If not,\n    // return the last async helper's promise\n\n    if (value && value instanceof TestPromise || !promise) {\n      return value;\n    } else {\n      return (0, _run.default)(() => resolve(promise).then(() => value));\n    }\n  }\n});","define(\"ember-testing/lib/test/run\", [\"exports\", \"@ember/runloop\"], function (_exports, _runloop) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = run;\n\n  function run(fn) {\n    if (!(0, _runloop.getCurrentRunLoop)()) {\n      return (0, _runloop.run)(fn);\n    } else {\n      return fn();\n    }\n  }\n});","define(\"ember-testing/lib/test/waiters\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.registerWaiter = registerWaiter;\n  _exports.unregisterWaiter = unregisterWaiter;\n  _exports.checkWaiters = checkWaiters;\n\n  /**\n   @module @ember/test\n  */\n  var contexts = [];\n  var callbacks = [];\n  /**\n     This allows ember-testing to play nicely with other asynchronous\n     events, such as an application that is waiting for a CSS3\n     transition or an IndexDB transaction. The waiter runs periodically\n     after each async helper (i.e. `click`, `andThen`, `visit`, etc) has executed,\n     until the returning result is truthy. After the waiters finish, the next async helper\n     is executed and the process repeats.\n  \n     For example:\n  \n     ```javascript\n     import { registerWaiter } from '@ember/test';\n  \n     registerWaiter(function() {\n       return myPendingTransactions() === 0;\n     });\n     ```\n     The `context` argument allows you to optionally specify the `this`\n     with which your callback will be invoked.\n  \n     For example:\n  \n     ```javascript\n     import { registerWaiter } from '@ember/test';\n  \n     registerWaiter(MyDB, MyDB.hasPendingTransactions);\n     ```\n  \n     @public\n     @for @ember/test\n     @static\n     @method registerWaiter\n     @param {Object} context (optional)\n     @param {Function} callback\n     @since 1.2.0\n  */\n\n  function registerWaiter(context, callback) {\n    if (arguments.length === 1) {\n      callback = context;\n      context = null;\n    }\n\n    if (indexOf(context, callback) > -1) {\n      return;\n    }\n\n    contexts.push(context);\n    callbacks.push(callback);\n  }\n  /**\n     `unregisterWaiter` is used to unregister a callback that was\n     registered with `registerWaiter`.\n  \n     @public\n     @for @ember/test\n     @static\n     @method unregisterWaiter\n     @param {Object} context (optional)\n     @param {Function} callback\n     @since 1.2.0\n  */\n\n\n  function unregisterWaiter(context, callback) {\n    if (!callbacks.length) {\n      return;\n    }\n\n    if (arguments.length === 1) {\n      callback = context;\n      context = null;\n    }\n\n    var i = indexOf(context, callback);\n\n    if (i === -1) {\n      return;\n    }\n\n    contexts.splice(i, 1);\n    callbacks.splice(i, 1);\n  }\n  /**\n    Iterates through each registered test waiter, and invokes\n    its callback. If any waiter returns false, this method will return\n    true indicating that the waiters have not settled yet.\n  \n    This is generally used internally from the acceptance/integration test\n    infrastructure.\n  \n    @public\n    @for @ember/test\n    @static\n    @method checkWaiters\n  */\n\n\n  function checkWaiters() {\n    if (!callbacks.length) {\n      return false;\n    }\n\n    for (var i = 0; i < callbacks.length; i++) {\n      var context = contexts[i];\n      var callback = callbacks[i];\n\n      if (!callback.call(context)) {\n        return true;\n      }\n    }\n\n    return false;\n  }\n\n  function indexOf(context, callback) {\n    for (var i = 0; i < callbacks.length; i++) {\n      if (callbacks[i] === callback && contexts[i] === context) {\n        return i;\n      }\n    }\n\n    return -1;\n  }\n});","define(\"ember/index\", [\"exports\", \"require\", \"@ember/-internals/environment\", \"node-module\", \"@ember/-internals/utils\", \"@ember/-internals/container\", \"@ember/instrumentation\", \"@ember/-internals/meta\", \"@ember/-internals/metal\", \"@ember/canary-features\", \"@ember/debug\", \"backburner\", \"@ember/-internals/console\", \"@ember/controller\", \"@ember/controller/lib/controller_mixin\", \"@ember/string\", \"@ember/service\", \"@ember/object\", \"@ember/object/compat\", \"@ember/object/computed\", \"@ember/-internals/runtime\", \"@ember/-internals/glimmer\", \"ember/version\", \"@ember/-internals/views\", \"@ember/-internals/routing\", \"@ember/-internals/extension-support\", \"@ember/error\", \"@ember/runloop\", \"@ember/-internals/error-handling\", \"@ember/-internals/owner\", \"@ember/application\", \"@ember/application/globals-resolver\", \"@ember/application/instance\", \"@ember/engine\", \"@ember/engine/instance\", \"@ember/polyfills\", \"@ember/deprecated-features\", \"@ember/component/template-only\"], function (_exports, _require, _environment, _nodeModule, utils, _container, instrumentation, _meta, metal, _canaryFeatures, EmberDebug, _backburner, _console, _controller, _controller_mixin, _string, _service, _object, _compat, _computed, _runtime, _glimmer, _version, views, routing, extensionSupport, _error, runloop, _errorHandling, _owner, _application, _globalsResolver, _instance, _engine, _instance2, _polyfills, _deprecatedFeatures, _templateOnly) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n  // eslint-disable-next-line import/no-unresolved\n  // ****@ember/-internals/environment****\n  var Ember = typeof _environment.context.imports.Ember === 'object' && _environment.context.imports.Ember || {};\n  Ember.isNamespace = true;\n\n  Ember.toString = function () {\n    return 'Ember';\n  };\n\n  Object.defineProperty(Ember, 'ENV', {\n    get: _environment.getENV,\n    enumerable: false\n  });\n  Object.defineProperty(Ember, 'lookup', {\n    get: _environment.getLookup,\n    set: _environment.setLookup,\n    enumerable: false\n  });\n\n  if (_deprecatedFeatures.EMBER_EXTEND_PROTOTYPES) {\n    Object.defineProperty(Ember, 'EXTEND_PROTOTYPES', {\n      enumerable: false,\n\n      get() {\n        (true && !(false) && (0, EmberDebug.deprecate)('Accessing Ember.EXTEND_PROTOTYPES is deprecated, please migrate to Ember.ENV.EXTEND_PROTOTYPES', false, {\n          id: 'ember-env.old-extend-prototypes',\n          until: '4.0.0'\n        }));\n        return _environment.ENV.EXTEND_PROTOTYPES;\n      }\n\n    });\n  } // ****@ember/application****\n\n\n  Ember.getOwner = _owner.getOwner;\n  Ember.setOwner = _owner.setOwner;\n  Ember.Application = _application.default;\n  Ember.ApplicationInstance = _instance.default;\n  Object.defineProperty(Ember, 'Resolver', {\n    get() {\n      (true && !(false) && (0, EmberDebug.deprecate)('Using the globals resolver is deprecated. Use the ember-resolver package instead. See https://deprecations.emberjs.com/v3.x#toc_ember-deprecate-globals-resolver', false, {\n        id: 'ember.globals-resolver',\n        until: '4.0.0',\n        url: 'https://deprecations.emberjs.com/v3.x#toc_ember-deprecate-globals-resolver'\n      }));\n      return _globalsResolver.default;\n    }\n\n  });\n  Object.defineProperty(Ember, 'DefaultResolver', {\n    get() {\n      return Ember.Resolver;\n    }\n\n  }); // ****@ember/engine****\n\n  Ember.Engine = _engine.default;\n  Ember.EngineInstance = _instance2.default; // ****@ember/polyfills****\n\n  Ember.assign = _polyfills.assign;\n  Ember.merge = _polyfills.merge; // ****@ember/-internals/utils****\n\n  Ember.generateGuid = utils.generateGuid;\n  Ember.GUID_KEY = utils.GUID_KEY;\n  Ember.guidFor = utils.guidFor;\n  Ember.inspect = utils.inspect;\n  Ember.makeArray = utils.makeArray;\n  Ember.canInvoke = utils.canInvoke;\n  Ember.tryInvoke = utils.tryInvoke;\n  Ember.wrap = utils.wrap;\n  Ember.uuid = utils.uuid; // ****@ember/-internals/container****\n\n  Ember.Container = _container.Container;\n  Ember.Registry = _container.Registry; // ****@ember/debug****\n\n  Ember.assert = EmberDebug.assert;\n  Ember.warn = EmberDebug.warn;\n  Ember.debug = EmberDebug.debug;\n  Ember.deprecate = EmberDebug.deprecate;\n  Ember.deprecateFunc = EmberDebug.deprecateFunc;\n  Ember.runInDebug = EmberDebug.runInDebug; // ****@ember/error****\n\n  Ember.Error = _error.default;\n  /**\n    @public\n    @class Ember.Debug\n  */\n\n  Ember.Debug = {\n    registerDeprecationHandler: EmberDebug.registerDeprecationHandler,\n    registerWarnHandler: EmberDebug.registerWarnHandler,\n    isComputed: metal.isComputed\n  }; // ****@ember/instrumentation****\n\n  Ember.instrument = instrumentation.instrument;\n  Ember.subscribe = instrumentation.subscribe;\n  Ember.Instrumentation = {\n    instrument: instrumentation.instrument,\n    subscribe: instrumentation.subscribe,\n    unsubscribe: instrumentation.unsubscribe,\n    reset: instrumentation.reset\n  }; // ****@ember/runloop****\n  // Using _globalsRun here so that mutating the function (adding\n  // `next`, `later`, etc to it) is only available in globals builds\n\n  Ember.run = runloop._globalsRun;\n  Ember.run.backburner = runloop.backburner;\n  Ember.run.begin = runloop.begin;\n  Ember.run.bind = runloop.bind;\n  Ember.run.cancel = runloop.cancel;\n  Ember.run.debounce = runloop.debounce;\n  Ember.run.end = runloop.end;\n  Ember.run.hasScheduledTimers = runloop.hasScheduledTimers;\n  Ember.run.join = runloop.join;\n  Ember.run.later = runloop.later;\n  Ember.run.next = runloop.next;\n  Ember.run.once = runloop.once;\n  Ember.run.schedule = runloop.schedule;\n  Ember.run.scheduleOnce = runloop.scheduleOnce;\n  Ember.run.throttle = runloop.throttle;\n  Ember.run.cancelTimers = runloop.cancelTimers;\n  Object.defineProperty(Ember.run, 'currentRunLoop', {\n    get: runloop.getCurrentRunLoop,\n    enumerable: false\n  }); // ****@ember/-internals/metal****\n  // Using _globalsComputed here so that mutating the function is only available\n  // in globals builds\n\n  var computed = metal._globalsComputed;\n  Ember.computed = computed;\n  Ember._descriptor = metal.nativeDescDecorator;\n  Ember._tracked = metal.tracked;\n  computed.alias = metal.alias;\n  Ember.cacheFor = metal.getCachedValueFor;\n  Ember.ComputedProperty = metal.ComputedProperty;\n  Object.defineProperty(Ember, '_setComputedDecorator', {\n    get() {\n      (true && !(false) && (0, EmberDebug.deprecate)('Please migrate from Ember._setComputedDecorator to Ember._setClassicDecorator', false, {\n        id: 'ember._setComputedDecorator',\n        until: '3.13.0'\n      }));\n      return metal.setClassicDecorator;\n    }\n\n  });\n  Ember._setClassicDecorator = metal.setClassicDecorator;\n  Ember.meta = _meta.meta;\n  Ember.get = metal.get;\n  Ember.getWithDefault = metal.getWithDefault;\n  Ember._getPath = metal._getPath;\n  Ember.set = metal.set;\n  Ember.trySet = metal.trySet;\n  Ember.FEATURES = (0, _polyfills.assign)({\n    isEnabled: _canaryFeatures.isEnabled\n  }, _canaryFeatures.FEATURES);\n  Ember._Cache = utils.Cache;\n  Ember.on = metal.on;\n  Ember.addListener = metal.addListener;\n  Ember.removeListener = metal.removeListener;\n  Ember.sendEvent = metal.sendEvent;\n  Ember.hasListeners = metal.hasListeners;\n  Ember.isNone = metal.isNone;\n  Ember.isEmpty = metal.isEmpty;\n  Ember.isBlank = metal.isBlank;\n  Ember.isPresent = metal.isPresent;\n  Ember.notifyPropertyChange = metal.notifyPropertyChange;\n  Ember.beginPropertyChanges = metal.beginPropertyChanges;\n  Ember.endPropertyChanges = metal.endPropertyChanges;\n  Ember.changeProperties = metal.changeProperties;\n  Ember.platform = {\n    defineProperty: true,\n    hasPropertyAccessors: true\n  };\n  Ember.defineProperty = metal.defineProperty;\n  Ember.destroy = metal.destroy;\n  Ember.libraries = metal.libraries;\n  Ember.getProperties = metal.getProperties;\n  Ember.setProperties = metal.setProperties;\n  Ember.expandProperties = metal.expandProperties;\n  Ember.addObserver = metal.addObserver;\n  Ember.removeObserver = metal.removeObserver;\n  Ember.aliasMethod = metal.aliasMethod;\n  Ember.observer = metal.observer;\n  Ember.mixin = metal.mixin;\n  Ember.Mixin = metal.Mixin;\n  /**\n    A function may be assigned to `Ember.onerror` to be called when Ember\n    internals encounter an error. This is useful for specialized error handling\n    and reporting code.\n  \n    ```javascript\n    import $ from 'jquery';\n  \n    Ember.onerror = function(error) {\n      $.ajax('/report-error', 'POST', {\n        stack: error.stack,\n        otherInformation: 'whatever app state you want to provide'\n      });\n    };\n    ```\n  \n    Internally, `Ember.onerror` is used as Backburner's error handler.\n  \n    @event onerror\n    @for Ember\n    @param {Exception} error the error object\n    @public\n  */\n\n  Object.defineProperty(Ember, 'onerror', {\n    get: _errorHandling.getOnerror,\n    set: _errorHandling.setOnerror,\n    enumerable: false\n  });\n  Object.defineProperty(Ember, 'testing', {\n    get: EmberDebug.isTesting,\n    set: EmberDebug.setTesting,\n    enumerable: false\n  });\n  Ember._Backburner = _backburner.default; // ****@ember/-internals/console****\n\n  if (_deprecatedFeatures.LOGGER) {\n    Ember.Logger = _console.default;\n  } // ****@ember/-internals/runtime****\n\n\n  Ember.A = _runtime.A;\n  Ember.String = {\n    loc: _string.loc,\n    w: _string.w,\n    dasherize: _string.dasherize,\n    decamelize: _string.decamelize,\n    camelize: _string.camelize,\n    classify: _string.classify,\n    underscore: _string.underscore,\n    capitalize: _string.capitalize\n  };\n  Ember.Object = _runtime.Object;\n  Ember._RegistryProxyMixin = _runtime.RegistryProxyMixin;\n  Ember._ContainerProxyMixin = _runtime.ContainerProxyMixin;\n  Ember.compare = _runtime.compare;\n  Ember.copy = _runtime.copy;\n  Ember.isEqual = _runtime.isEqual;\n  Ember._setFrameworkClass = _runtime.setFrameworkClass;\n  /**\n  @module ember\n  */\n\n  /**\n    Namespace for injection helper methods.\n  \n    @class inject\n    @namespace Ember\n    @static\n    @public\n  */\n\n  Ember.inject = function inject() {\n    (true && !(false) && (0, EmberDebug.assert)(`Injected properties must be created through helpers, see '${Object.keys(inject).map(k => `'inject.${k}'`).join(' or ')}'`));\n  };\n\n  Ember.inject.service = _service.inject;\n  Ember.inject.controller = _controller.inject;\n  Ember.Array = _runtime.Array;\n  Ember.Comparable = _runtime.Comparable;\n  Ember.Enumerable = _runtime.Enumerable;\n  Ember.ArrayProxy = _runtime.ArrayProxy;\n  Ember.ObjectProxy = _runtime.ObjectProxy;\n  Ember.ActionHandler = _runtime.ActionHandler;\n  Ember.CoreObject = _runtime.CoreObject;\n  Ember.NativeArray = _runtime.NativeArray;\n  Ember.Copyable = _runtime.Copyable;\n  Ember.MutableEnumerable = _runtime.MutableEnumerable;\n  Ember.MutableArray = _runtime.MutableArray;\n  Ember.TargetActionSupport = _runtime.TargetActionSupport;\n  Ember.Evented = _runtime.Evented;\n  Ember.PromiseProxyMixin = _runtime.PromiseProxyMixin;\n  Ember.Observable = _runtime.Observable;\n  Ember.typeOf = _runtime.typeOf;\n  Ember.isArray = _runtime.isArray;\n  Ember.Object = _runtime.Object;\n  Ember.onLoad = _application.onLoad;\n  Ember.runLoadHooks = _application.runLoadHooks;\n  Ember.Controller = _controller.default;\n  Ember.ControllerMixin = _controller_mixin.default;\n  Ember.Service = _service.default;\n  Ember._ProxyMixin = _runtime._ProxyMixin;\n  Ember.RSVP = _runtime.RSVP;\n  Ember.Namespace = _runtime.Namespace;\n  Ember._action = _object.action;\n  Ember._dependentKeyCompat = _compat.dependentKeyCompat;\n  computed.empty = _computed.empty;\n  computed.notEmpty = _computed.notEmpty;\n  computed.none = _computed.none;\n  computed.not = _computed.not;\n  computed.bool = _computed.bool;\n  computed.match = _computed.match;\n  computed.equal = _computed.equal;\n  computed.gt = _computed.gt;\n  computed.gte = _computed.gte;\n  computed.lt = _computed.lt;\n  computed.lte = _computed.lte;\n  computed.oneWay = _computed.oneWay;\n  computed.reads = _computed.oneWay;\n  computed.readOnly = _computed.readOnly;\n  computed.deprecatingAlias = _computed.deprecatingAlias;\n  computed.and = _computed.and;\n  computed.or = _computed.or;\n  computed.sum = _computed.sum;\n  computed.min = _computed.min;\n  computed.max = _computed.max;\n  computed.map = _computed.map;\n  computed.sort = _computed.sort;\n  computed.setDiff = _computed.setDiff;\n  computed.mapBy = _computed.mapBy;\n  computed.filter = _computed.filter;\n  computed.filterBy = _computed.filterBy;\n  computed.uniq = _computed.uniq;\n  computed.uniqBy = _computed.uniqBy;\n  computed.union = _computed.union;\n  computed.intersect = _computed.intersect;\n  computed.collect = _computed.collect;\n  /**\n    Defines the hash of localized strings for the current language. Used by\n    the `String.loc` helper. To localize, add string values to this\n    hash.\n  \n    @property STRINGS\n    @for Ember\n    @type Object\n    @private\n  */\n\n  Object.defineProperty(Ember, 'STRINGS', {\n    configurable: false,\n    get: _string._getStrings,\n    set: _string._setStrings\n  });\n  /**\n    Whether searching on the global for new Namespace instances is enabled.\n  \n    This is only exported here as to not break any addons.  Given the new\n    visit API, you will have issues if you treat this as a indicator of\n    booted.\n  \n    Internally this is only exposing a flag in Namespace.\n  \n    @property BOOTED\n    @for Ember\n    @type Boolean\n    @private\n  */\n\n  Object.defineProperty(Ember, 'BOOTED', {\n    configurable: false,\n    enumerable: false,\n    get: metal.isNamespaceSearchDisabled,\n    set: metal.setNamespaceSearchDisabled\n  }); // ****@ember/-internals/glimmer****\n\n  Ember.Component = _glimmer.Component;\n  _glimmer.Helper.helper = _glimmer.helper;\n  Ember.Helper = _glimmer.Helper;\n  Ember.Checkbox = _glimmer.Checkbox;\n  Ember.TextField = _glimmer.TextField;\n  Ember.TextArea = _glimmer.TextArea;\n  Ember.LinkComponent = _glimmer.LinkComponent;\n  Ember._setComponentManager = _glimmer.setComponentManager;\n  Ember._componentManagerCapabilities = _glimmer.capabilities;\n  Ember._setModifierManager = _glimmer.setModifierManager;\n  Ember._modifierManagerCapabilities = _glimmer.modifierCapabilities;\n\n  if (true\n  /* EMBER_GLIMMER_SET_COMPONENT_TEMPLATE */\n  ) {\n      Ember._getComponentTemplate = _glimmer.getComponentTemplate;\n      Ember._setComponentTemplate = _glimmer.setComponentTemplate;\n      Ember._templateOnlyComponent = _templateOnly.default;\n    }\n\n  Ember._captureRenderTree = EmberDebug.captureRenderTree;\n  Ember.Handlebars = {\n    template: _glimmer.template,\n    Utils: {\n      escapeExpression: _glimmer.escapeExpression\n    }\n  };\n  Ember.HTMLBars = {\n    template: _glimmer.template\n  };\n\n  if (_environment.ENV.EXTEND_PROTOTYPES.String) {\n    String.prototype.htmlSafe = function () {\n      return (0, _glimmer.htmlSafe)(this);\n    };\n  }\n\n  Ember.String.htmlSafe = _glimmer.htmlSafe;\n  Ember.String.isHTMLSafe = _glimmer.isHTMLSafe;\n  /**\n    Global hash of shared templates. This will automatically be populated\n    by the build tools so that you can store your Handlebars templates in\n    separate files that get loaded into JavaScript at buildtime.\n  \n    @property TEMPLATES\n    @for Ember\n    @type Object\n    @private\n  */\n\n  Object.defineProperty(Ember, 'TEMPLATES', {\n    get: _glimmer.getTemplates,\n    set: _glimmer.setTemplates,\n    configurable: false,\n    enumerable: false\n  });\n  /**\n    The semantic version\n  \n    @property VERSION\n    @type String\n    @public\n  */\n\n  Ember.VERSION = _version.default; // ****@ember/-internals/views****\n\n  if (_deprecatedFeatures.JQUERY_INTEGRATION && !views.jQueryDisabled) {\n    Object.defineProperty(Ember, '$', {\n      get() {\n        (true && !(false) && (0, EmberDebug.deprecate)(\"Using Ember.$() has been deprecated, use `import jQuery from 'jquery';` instead\", false, {\n          id: 'ember-views.curly-components.jquery-element',\n          until: '4.0.0',\n          url: 'https://emberjs.com/deprecations/v3.x#toc_jquery-apis'\n        }));\n        return views.jQuery;\n      },\n\n      configurable: true,\n      enumerable: true\n    });\n  }\n\n  Ember.ViewUtils = {\n    isSimpleClick: views.isSimpleClick,\n    getElementView: views.getElementView,\n    getViewElement: views.getViewElement,\n    getViewBounds: views.getViewBounds,\n    getViewClientRects: views.getViewClientRects,\n    getViewBoundingClientRect: views.getViewBoundingClientRect,\n    getRootViews: views.getRootViews,\n    getChildViews: views.getChildViews,\n    isSerializationFirstNode: _glimmer.isSerializationFirstNode\n  };\n  Ember.TextSupport = views.TextSupport;\n  Ember.ComponentLookup = views.ComponentLookup;\n  Ember.EventDispatcher = views.EventDispatcher; // ****@ember/-internals/routing****\n\n  Ember.Location = routing.Location;\n  Ember.AutoLocation = routing.AutoLocation;\n  Ember.HashLocation = routing.HashLocation;\n  Ember.HistoryLocation = routing.HistoryLocation;\n  Ember.NoneLocation = routing.NoneLocation;\n  Ember.controllerFor = routing.controllerFor;\n  Ember.generateControllerFactory = routing.generateControllerFactory;\n  Ember.generateController = routing.generateController;\n  Ember.RouterDSL = routing.RouterDSL;\n  Ember.Router = routing.Router;\n  Ember.Route = routing.Route;\n  (0, _application.runLoadHooks)('Ember.Application', _application.default);\n  Ember.DataAdapter = extensionSupport.DataAdapter;\n  Ember.ContainerDebugAdapter = extensionSupport.ContainerDebugAdapter;\n\n  if ((0, _require.has)('ember-template-compiler')) {\n    (0, _require.default)(\"ember-template-compiler\");\n  } // do this to ensure that Ember.Test is defined properly on the global\n  // if it is present.\n\n\n  if ((0, _require.has)('ember-testing')) {\n    var testing = (0, _require.default)(\"ember-testing\");\n    Ember.Test = testing.Test;\n    Ember.Test.Adapter = testing.Adapter;\n    Ember.Test.QUnitAdapter = testing.QUnitAdapter;\n    Ember.setupForTesting = testing.setupForTesting;\n  }\n\n  (0, _application.runLoadHooks)('Ember');\n  var _default = Ember;\n  _exports.default = _default;\n\n  if (_nodeModule.IS_NODE) {\n    _nodeModule.module.exports = Ember;\n  } else {\n    _environment.context.exports.Ember = _environment.context.exports.Em = Ember;\n  }\n  /**\n   @module jquery\n   @public\n   */\n\n  /**\n   @class jquery\n   @public\n   @static\n   */\n\n  /**\n    Alias for jQuery\n  \n    @for jquery\n    @method $\n    @static\n    @public\n  */\n\n});","define(\"ember/version\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n  var _default = \"3.18.1\";\n  _exports.default = _default;\n});","define(\"node-module/index\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.require = _exports.module = _exports.IS_NODE = void 0;\n\n  /*global module */\n  var IS_NODE = typeof module === 'object' && typeof module.require === 'function';\n  _exports.IS_NODE = IS_NODE;\n  var exportModule;\n  _exports.module = exportModule;\n  var exportRequire;\n  _exports.require = exportRequire;\n\n  if (IS_NODE) {\n    _exports.module = exportModule = module;\n    _exports.require = exportRequire = module.require;\n  } else {\n    _exports.module = exportModule = null;\n    _exports.require = exportRequire = null;\n  }\n});","define(\"route-recognizer\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n  var createObject = Object.create;\n\n  function createMap() {\n    var map = createObject(null);\n    map[\"__\"] = undefined;\n    delete map[\"__\"];\n    return map;\n  }\n\n  var Target = function Target(path, matcher, delegate) {\n    this.path = path;\n    this.matcher = matcher;\n    this.delegate = delegate;\n  };\n\n  Target.prototype.to = function to(target, callback) {\n    var delegate = this.delegate;\n\n    if (delegate && delegate.willAddRoute) {\n      target = delegate.willAddRoute(this.matcher.target, target);\n    }\n\n    this.matcher.add(this.path, target);\n\n    if (callback) {\n      if (callback.length === 0) {\n        throw new Error(\"You must have an argument in the function passed to `to`\");\n      }\n\n      this.matcher.addChild(this.path, target, callback, this.delegate);\n    }\n  };\n\n  var Matcher = function Matcher(target) {\n    this.routes = createMap();\n    this.children = createMap();\n    this.target = target;\n  };\n\n  Matcher.prototype.add = function add(path, target) {\n    this.routes[path] = target;\n  };\n\n  Matcher.prototype.addChild = function addChild(path, target, callback, delegate) {\n    var matcher = new Matcher(target);\n    this.children[path] = matcher;\n    var match = generateMatch(path, matcher, delegate);\n\n    if (delegate && delegate.contextEntered) {\n      delegate.contextEntered(target, match);\n    }\n\n    callback(match);\n  };\n\n  function generateMatch(startingPath, matcher, delegate) {\n    function match(path, callback) {\n      var fullPath = startingPath + path;\n\n      if (callback) {\n        callback(generateMatch(fullPath, matcher, delegate));\n      } else {\n        return new Target(fullPath, matcher, delegate);\n      }\n    }\n\n    return match;\n  }\n\n  function addRoute(routeArray, path, handler) {\n    var len = 0;\n\n    for (var i = 0; i < routeArray.length; i++) {\n      len += routeArray[i].path.length;\n    }\n\n    path = path.substr(len);\n    var route = {\n      path: path,\n      handler: handler\n    };\n    routeArray.push(route);\n  }\n\n  function eachRoute(baseRoute, matcher, callback, binding) {\n    var routes = matcher.routes;\n    var paths = Object.keys(routes);\n\n    for (var i = 0; i < paths.length; i++) {\n      var path = paths[i];\n      var routeArray = baseRoute.slice();\n      addRoute(routeArray, path, routes[path]);\n      var nested = matcher.children[path];\n\n      if (nested) {\n        eachRoute(routeArray, nested, callback, binding);\n      } else {\n        callback.call(binding, routeArray);\n      }\n    }\n  }\n\n  var map = function (callback, addRouteCallback) {\n    var matcher = new Matcher();\n    callback(generateMatch(\"\", matcher, this.delegate));\n    eachRoute([], matcher, function (routes) {\n      if (addRouteCallback) {\n        addRouteCallback(this, routes);\n      } else {\n        this.add(routes);\n      }\n    }, this);\n  }; // Normalizes percent-encoded values in `path` to upper-case and decodes percent-encoded\n  // values that are not reserved (i.e., unicode characters, emoji, etc). The reserved\n  // chars are \"/\" and \"%\".\n  // Safe to call multiple times on the same path.\n  // Normalizes percent-encoded values in `path` to upper-case and decodes percent-encoded\n\n\n  function normalizePath(path) {\n    return path.split(\"/\").map(normalizeSegment).join(\"/\");\n  } // We want to ensure the characters \"%\" and \"/\" remain in percent-encoded\n  // form when normalizing paths, so replace them with their encoded form after\n  // decoding the rest of the path\n\n\n  var SEGMENT_RESERVED_CHARS = /%|\\//g;\n\n  function normalizeSegment(segment) {\n    if (segment.length < 3 || segment.indexOf(\"%\") === -1) {\n      return segment;\n    }\n\n    return decodeURIComponent(segment).replace(SEGMENT_RESERVED_CHARS, encodeURIComponent);\n  } // We do not want to encode these characters when generating dynamic path segments\n  // See https://tools.ietf.org/html/rfc3986#section-3.3\n  // sub-delims: \"!\", \"$\", \"&\", \"'\", \"(\", \")\", \"*\", \"+\", \",\", \";\", \"=\"\n  // others allowed by RFC 3986: \":\", \"@\"\n  //\n  // First encode the entire path segment, then decode any of the encoded special chars.\n  //\n  // The chars \"!\", \"'\", \"(\", \")\", \"*\" do not get changed by `encodeURIComponent`,\n  // so the possible encoded chars are:\n  // ['%24', '%26', '%2B', '%2C', '%3B', '%3D', '%3A', '%40'].\n\n\n  var PATH_SEGMENT_ENCODINGS = /%(?:2(?:4|6|B|C)|3(?:B|D|A)|40)/g;\n\n  function encodePathSegment(str) {\n    return encodeURIComponent(str).replace(PATH_SEGMENT_ENCODINGS, decodeURIComponent);\n  }\n\n  var escapeRegex = /(\\/|\\.|\\*|\\+|\\?|\\||\\(|\\)|\\[|\\]|\\{|\\}|\\\\)/g;\n  var isArray = Array.isArray;\n  var hasOwnProperty = Object.prototype.hasOwnProperty;\n\n  function getParam(params, key) {\n    if (typeof params !== \"object\" || params === null) {\n      throw new Error(\"You must pass an object as the second argument to `generate`.\");\n    }\n\n    if (!hasOwnProperty.call(params, key)) {\n      throw new Error(\"You must provide param `\" + key + \"` to `generate`.\");\n    }\n\n    var value = params[key];\n    var str = typeof value === \"string\" ? value : \"\" + value;\n\n    if (str.length === 0) {\n      throw new Error(\"You must provide a param `\" + key + \"`.\");\n    }\n\n    return str;\n  }\n\n  var eachChar = [];\n\n  eachChar[0\n  /* Static */\n  ] = function (segment, currentState) {\n    var state = currentState;\n    var value = segment.value;\n\n    for (var i = 0; i < value.length; i++) {\n      var ch = value.charCodeAt(i);\n      state = state.put(ch, false, false);\n    }\n\n    return state;\n  };\n\n  eachChar[1\n  /* Dynamic */\n  ] = function (_, currentState) {\n    return currentState.put(47\n    /* SLASH */\n    , true, true);\n  };\n\n  eachChar[2\n  /* Star */\n  ] = function (_, currentState) {\n    return currentState.put(-1\n    /* ANY */\n    , false, true);\n  };\n\n  eachChar[4\n  /* Epsilon */\n  ] = function (_, currentState) {\n    return currentState;\n  };\n\n  var regex = [];\n\n  regex[0\n  /* Static */\n  ] = function (segment) {\n    return segment.value.replace(escapeRegex, \"\\\\$1\");\n  };\n\n  regex[1\n  /* Dynamic */\n  ] = function () {\n    return \"([^/]+)\";\n  };\n\n  regex[2\n  /* Star */\n  ] = function () {\n    return \"(.+)\";\n  };\n\n  regex[4\n  /* Epsilon */\n  ] = function () {\n    return \"\";\n  };\n\n  var generate = [];\n\n  generate[0\n  /* Static */\n  ] = function (segment) {\n    return segment.value;\n  };\n\n  generate[1\n  /* Dynamic */\n  ] = function (segment, params) {\n    var value = getParam(params, segment.value);\n\n    if (RouteRecognizer.ENCODE_AND_DECODE_PATH_SEGMENTS) {\n      return encodePathSegment(value);\n    } else {\n      return value;\n    }\n  };\n\n  generate[2\n  /* Star */\n  ] = function (segment, params) {\n    return getParam(params, segment.value);\n  };\n\n  generate[4\n  /* Epsilon */\n  ] = function () {\n    return \"\";\n  };\n\n  var EmptyObject = Object.freeze({});\n  var EmptyArray = Object.freeze([]); // The `names` will be populated with the paramter name for each dynamic/star\n  // segment. `shouldDecodes` will be populated with a boolean for each dyanamic/star\n  // segment, indicating whether it should be decoded during recognition.\n\n  function parse(segments, route, types) {\n    // normalize route as not starting with a \"/\". Recognition will\n    // also normalize.\n    if (route.length > 0 && route.charCodeAt(0) === 47\n    /* SLASH */\n    ) {\n        route = route.substr(1);\n      }\n\n    var parts = route.split(\"/\");\n    var names = undefined;\n    var shouldDecodes = undefined;\n\n    for (var i = 0; i < parts.length; i++) {\n      var part = parts[i];\n      var flags = 0;\n      var type = 0;\n\n      if (part === \"\") {\n        type = 4\n        /* Epsilon */\n        ;\n      } else if (part.charCodeAt(0) === 58\n      /* COLON */\n      ) {\n          type = 1\n          /* Dynamic */\n          ;\n        } else if (part.charCodeAt(0) === 42\n      /* STAR */\n      ) {\n          type = 2\n          /* Star */\n          ;\n        } else {\n        type = 0\n        /* Static */\n        ;\n      }\n\n      flags = 2 << type;\n\n      if (flags & 12\n      /* Named */\n      ) {\n          part = part.slice(1);\n          names = names || [];\n          names.push(part);\n          shouldDecodes = shouldDecodes || [];\n          shouldDecodes.push((flags & 4\n          /* Decoded */\n          ) !== 0);\n        }\n\n      if (flags & 14\n      /* Counted */\n      ) {\n          types[type]++;\n        }\n\n      segments.push({\n        type: type,\n        value: normalizeSegment(part)\n      });\n    }\n\n    return {\n      names: names || EmptyArray,\n      shouldDecodes: shouldDecodes || EmptyArray\n    };\n  }\n\n  function isEqualCharSpec(spec, char, negate) {\n    return spec.char === char && spec.negate === negate;\n  } // A State has a character specification and (`charSpec`) and a list of possible\n  // subsequent states (`nextStates`).\n  //\n  // If a State is an accepting state, it will also have several additional\n  // properties:\n  //\n  // * `regex`: A regular expression that is used to extract parameters from paths\n  //   that reached this accepting state.\n  // * `handlers`: Information on how to convert the list of captures into calls\n  //   to registered handlers with the specified parameters\n  // * `types`: How many static, dynamic or star segments in this route. Used to\n  //   decide which route to use if multiple registered routes match a path.\n  //\n  // Currently, State is implemented naively by looping over `nextStates` and\n  // comparing a character specification against a character. A more efficient\n  // implementation would use a hash of keys pointing at one or more next states.\n\n\n  var State = function State(states, id, char, negate, repeat) {\n    this.states = states;\n    this.id = id;\n    this.char = char;\n    this.negate = negate;\n    this.nextStates = repeat ? id : null;\n    this.pattern = \"\";\n    this._regex = undefined;\n    this.handlers = undefined;\n    this.types = undefined;\n  };\n\n  State.prototype.regex = function regex$1() {\n    if (!this._regex) {\n      this._regex = new RegExp(this.pattern);\n    }\n\n    return this._regex;\n  };\n\n  State.prototype.get = function get(char, negate) {\n    var this$1 = this;\n    var nextStates = this.nextStates;\n\n    if (nextStates === null) {\n      return;\n    }\n\n    if (isArray(nextStates)) {\n      for (var i = 0; i < nextStates.length; i++) {\n        var child = this$1.states[nextStates[i]];\n\n        if (isEqualCharSpec(child, char, negate)) {\n          return child;\n        }\n      }\n    } else {\n      var child$1 = this.states[nextStates];\n\n      if (isEqualCharSpec(child$1, char, negate)) {\n        return child$1;\n      }\n    }\n  };\n\n  State.prototype.put = function put(char, negate, repeat) {\n    var state; // If the character specification already exists in a child of the current\n    // state, just return that state.\n\n    if (state = this.get(char, negate)) {\n      return state;\n    } // Make a new state for the character spec\n\n\n    var states = this.states;\n    state = new State(states, states.length, char, negate, repeat);\n    states[states.length] = state; // Insert the new state as a child of the current state\n\n    if (this.nextStates == null) {\n      this.nextStates = state.id;\n    } else if (isArray(this.nextStates)) {\n      this.nextStates.push(state.id);\n    } else {\n      this.nextStates = [this.nextStates, state.id];\n    } // Return the new state\n\n\n    return state;\n  }; // Find a list of child states matching the next character\n\n\n  State.prototype.match = function match(ch) {\n    var this$1 = this;\n    var nextStates = this.nextStates;\n\n    if (!nextStates) {\n      return [];\n    }\n\n    var returned = [];\n\n    if (isArray(nextStates)) {\n      for (var i = 0; i < nextStates.length; i++) {\n        var child = this$1.states[nextStates[i]];\n\n        if (isMatch(child, ch)) {\n          returned.push(child);\n        }\n      }\n    } else {\n      var child$1 = this.states[nextStates];\n\n      if (isMatch(child$1, ch)) {\n        returned.push(child$1);\n      }\n    }\n\n    return returned;\n  };\n\n  function isMatch(spec, char) {\n    return spec.negate ? spec.char !== char && spec.char !== -1\n    /* ANY */\n    : spec.char === char || spec.char === -1\n    /* ANY */\n    ;\n  } // This is a somewhat naive strategy, but should work in a lot of cases\n  // A better strategy would properly resolve /posts/:id/new and /posts/edit/:id.\n  //\n  // This strategy generally prefers more static and less dynamic matching.\n  // Specifically, it\n  //\n  //  * prefers fewer stars to more, then\n  //  * prefers using stars for less of the match to more, then\n  //  * prefers fewer dynamic segments to more, then\n  //  * prefers more static segments to more\n\n\n  function sortSolutions(states) {\n    return states.sort(function (a, b) {\n      var ref = a.types || [0, 0, 0];\n      var astatics = ref[0];\n      var adynamics = ref[1];\n      var astars = ref[2];\n      var ref$1 = b.types || [0, 0, 0];\n      var bstatics = ref$1[0];\n      var bdynamics = ref$1[1];\n      var bstars = ref$1[2];\n\n      if (astars !== bstars) {\n        return astars - bstars;\n      }\n\n      if (astars) {\n        if (astatics !== bstatics) {\n          return bstatics - astatics;\n        }\n\n        if (adynamics !== bdynamics) {\n          return bdynamics - adynamics;\n        }\n      }\n\n      if (adynamics !== bdynamics) {\n        return adynamics - bdynamics;\n      }\n\n      if (astatics !== bstatics) {\n        return bstatics - astatics;\n      }\n\n      return 0;\n    });\n  }\n\n  function recognizeChar(states, ch) {\n    var nextStates = [];\n\n    for (var i = 0, l = states.length; i < l; i++) {\n      var state = states[i];\n      nextStates = nextStates.concat(state.match(ch));\n    }\n\n    return nextStates;\n  }\n\n  var RecognizeResults = function RecognizeResults(queryParams) {\n    this.length = 0;\n    this.queryParams = queryParams || {};\n  };\n\n  RecognizeResults.prototype.splice = Array.prototype.splice;\n  RecognizeResults.prototype.slice = Array.prototype.slice;\n  RecognizeResults.prototype.push = Array.prototype.push;\n\n  function findHandler(state, originalPath, queryParams) {\n    var handlers = state.handlers;\n    var regex = state.regex();\n\n    if (!regex || !handlers) {\n      throw new Error(\"state not initialized\");\n    }\n\n    var captures = originalPath.match(regex);\n    var currentCapture = 1;\n    var result = new RecognizeResults(queryParams);\n    result.length = handlers.length;\n\n    for (var i = 0; i < handlers.length; i++) {\n      var handler = handlers[i];\n      var names = handler.names;\n      var shouldDecodes = handler.shouldDecodes;\n      var params = EmptyObject;\n      var isDynamic = false;\n\n      if (names !== EmptyArray && shouldDecodes !== EmptyArray) {\n        for (var j = 0; j < names.length; j++) {\n          isDynamic = true;\n          var name = names[j];\n          var capture = captures && captures[currentCapture++];\n\n          if (params === EmptyObject) {\n            params = {};\n          }\n\n          if (RouteRecognizer.ENCODE_AND_DECODE_PATH_SEGMENTS && shouldDecodes[j]) {\n            params[name] = capture && decodeURIComponent(capture);\n          } else {\n            params[name] = capture;\n          }\n        }\n      }\n\n      result[i] = {\n        handler: handler.handler,\n        params: params,\n        isDynamic: isDynamic\n      };\n    }\n\n    return result;\n  }\n\n  function decodeQueryParamPart(part) {\n    // http://www.w3.org/TR/html401/interact/forms.html#h-17.13.4.1\n    part = part.replace(/\\+/gm, \"%20\");\n    var result;\n\n    try {\n      result = decodeURIComponent(part);\n    } catch (error) {\n      result = \"\";\n    }\n\n    return result;\n  }\n\n  var RouteRecognizer = function RouteRecognizer() {\n    this.names = createMap();\n    var states = [];\n    var state = new State(states, 0, -1\n    /* ANY */\n    , true, false);\n    states[0] = state;\n    this.states = states;\n    this.rootState = state;\n  };\n\n  RouteRecognizer.prototype.add = function add(routes, options) {\n    var currentState = this.rootState;\n    var pattern = \"^\";\n    var types = [0, 0, 0];\n    var handlers = new Array(routes.length);\n    var allSegments = [];\n    var isEmpty = true;\n    var j = 0;\n\n    for (var i = 0; i < routes.length; i++) {\n      var route = routes[i];\n      var ref = parse(allSegments, route.path, types);\n      var names = ref.names;\n      var shouldDecodes = ref.shouldDecodes; // preserve j so it points to the start of newly added segments\n\n      for (; j < allSegments.length; j++) {\n        var segment = allSegments[j];\n\n        if (segment.type === 4\n        /* Epsilon */\n        ) {\n            continue;\n          }\n\n        isEmpty = false; // Add a \"/\" for the new segment\n\n        currentState = currentState.put(47\n        /* SLASH */\n        , false, false);\n        pattern += \"/\"; // Add a representation of the segment to the NFA and regex\n\n        currentState = eachChar[segment.type](segment, currentState);\n        pattern += regex[segment.type](segment);\n      }\n\n      handlers[i] = {\n        handler: route.handler,\n        names: names,\n        shouldDecodes: shouldDecodes\n      };\n    }\n\n    if (isEmpty) {\n      currentState = currentState.put(47\n      /* SLASH */\n      , false, false);\n      pattern += \"/\";\n    }\n\n    currentState.handlers = handlers;\n    currentState.pattern = pattern + \"$\";\n    currentState.types = types;\n    var name;\n\n    if (typeof options === \"object\" && options !== null && options.as) {\n      name = options.as;\n    }\n\n    if (name) {\n      // if (this.names[name]) {\n      //   throw new Error(\"You may not add a duplicate route named `\" + name + \"`.\");\n      // }\n      this.names[name] = {\n        segments: allSegments,\n        handlers: handlers\n      };\n    }\n  };\n\n  RouteRecognizer.prototype.handlersFor = function handlersFor(name) {\n    var route = this.names[name];\n\n    if (!route) {\n      throw new Error(\"There is no route named \" + name);\n    }\n\n    var result = new Array(route.handlers.length);\n\n    for (var i = 0; i < route.handlers.length; i++) {\n      var handler = route.handlers[i];\n      result[i] = handler;\n    }\n\n    return result;\n  };\n\n  RouteRecognizer.prototype.hasRoute = function hasRoute(name) {\n    return !!this.names[name];\n  };\n\n  RouteRecognizer.prototype.generate = function generate$1(name, params) {\n    var route = this.names[name];\n    var output = \"\";\n\n    if (!route) {\n      throw new Error(\"There is no route named \" + name);\n    }\n\n    var segments = route.segments;\n\n    for (var i = 0; i < segments.length; i++) {\n      var segment = segments[i];\n\n      if (segment.type === 4\n      /* Epsilon */\n      ) {\n          continue;\n        }\n\n      output += \"/\";\n      output += generate[segment.type](segment, params);\n    }\n\n    if (output.charAt(0) !== \"/\") {\n      output = \"/\" + output;\n    }\n\n    if (params && params.queryParams) {\n      output += this.generateQueryString(params.queryParams);\n    }\n\n    return output;\n  };\n\n  RouteRecognizer.prototype.generateQueryString = function generateQueryString(params) {\n    var pairs = [];\n    var keys = Object.keys(params);\n    keys.sort();\n\n    for (var i = 0; i < keys.length; i++) {\n      var key = keys[i];\n      var value = params[key];\n\n      if (value == null) {\n        continue;\n      }\n\n      var pair = encodeURIComponent(key);\n\n      if (isArray(value)) {\n        for (var j = 0; j < value.length; j++) {\n          var arrayPair = key + \"[]\" + \"=\" + encodeURIComponent(value[j]);\n          pairs.push(arrayPair);\n        }\n      } else {\n        pair += \"=\" + encodeURIComponent(value);\n        pairs.push(pair);\n      }\n    }\n\n    if (pairs.length === 0) {\n      return \"\";\n    }\n\n    return \"?\" + pairs.join(\"&\");\n  };\n\n  RouteRecognizer.prototype.parseQueryString = function parseQueryString(queryString) {\n    var pairs = queryString.split(\"&\");\n    var queryParams = {};\n\n    for (var i = 0; i < pairs.length; i++) {\n      var pair = pairs[i].split(\"=\"),\n          key = decodeQueryParamPart(pair[0]),\n          keyLength = key.length,\n          isArray = false,\n          value = void 0;\n\n      if (pair.length === 1) {\n        value = \"true\";\n      } else {\n        // Handle arrays\n        if (keyLength > 2 && key.slice(keyLength - 2) === \"[]\") {\n          isArray = true;\n          key = key.slice(0, keyLength - 2);\n\n          if (!queryParams[key]) {\n            queryParams[key] = [];\n          }\n        }\n\n        value = pair[1] ? decodeQueryParamPart(pair[1]) : \"\";\n      }\n\n      if (isArray) {\n        queryParams[key].push(value);\n      } else {\n        queryParams[key] = value;\n      }\n    }\n\n    return queryParams;\n  };\n\n  RouteRecognizer.prototype.recognize = function recognize(path) {\n    var results;\n    var states = [this.rootState];\n    var queryParams = {};\n    var isSlashDropped = false;\n    var hashStart = path.indexOf(\"#\");\n\n    if (hashStart !== -1) {\n      path = path.substr(0, hashStart);\n    }\n\n    var queryStart = path.indexOf(\"?\");\n\n    if (queryStart !== -1) {\n      var queryString = path.substr(queryStart + 1, path.length);\n      path = path.substr(0, queryStart);\n      queryParams = this.parseQueryString(queryString);\n    }\n\n    if (path.charAt(0) !== \"/\") {\n      path = \"/\" + path;\n    }\n\n    var originalPath = path;\n\n    if (RouteRecognizer.ENCODE_AND_DECODE_PATH_SEGMENTS) {\n      path = normalizePath(path);\n    } else {\n      path = decodeURI(path);\n      originalPath = decodeURI(originalPath);\n    }\n\n    var pathLen = path.length;\n\n    if (pathLen > 1 && path.charAt(pathLen - 1) === \"/\") {\n      path = path.substr(0, pathLen - 1);\n      originalPath = originalPath.substr(0, originalPath.length - 1);\n      isSlashDropped = true;\n    }\n\n    for (var i = 0; i < path.length; i++) {\n      states = recognizeChar(states, path.charCodeAt(i));\n\n      if (!states.length) {\n        break;\n      }\n    }\n\n    var solutions = [];\n\n    for (var i$1 = 0; i$1 < states.length; i$1++) {\n      if (states[i$1].handlers) {\n        solutions.push(states[i$1]);\n      }\n    }\n\n    states = sortSolutions(solutions);\n    var state = solutions[0];\n\n    if (state && state.handlers) {\n      // if a trailing slash was dropped and a star segment is the last segment\n      // specified, put the trailing slash back\n      if (isSlashDropped && state.pattern && state.pattern.slice(-5) === \"(.+)$\") {\n        originalPath = originalPath + \"/\";\n      }\n\n      results = findHandler(state, originalPath, queryParams);\n    }\n\n    return results;\n  };\n\n  RouteRecognizer.VERSION = \"0.3.4\"; // Set to false to opt-out of encoding and decoding path segments.\n  // See https://github.com/tildeio/route-recognizer/pull/55\n\n  RouteRecognizer.ENCODE_AND_DECODE_PATH_SEGMENTS = true;\n  RouteRecognizer.Normalizer = {\n    normalizeSegment: normalizeSegment,\n    normalizePath: normalizePath,\n    encodePathSegment: encodePathSegment\n  };\n  RouteRecognizer.prototype.map = map;\n  var _default = RouteRecognizer;\n  _exports.default = _default;\n});","define(\"router_js\", [\"exports\", \"@ember/polyfills\", \"rsvp\", \"route-recognizer\"], function (_exports, _polyfills, _rsvp, _routeRecognizer) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.logAbort = logAbort;\n  _exports.InternalRouteInfo = _exports.TransitionError = _exports.TransitionState = _exports.QUERY_PARAMS_SYMBOL = _exports.PARAMS_SYMBOL = _exports.STATE_SYMBOL = _exports.InternalTransition = _exports.default = void 0;\n\n  var TransitionAbortedError = function () {\n    TransitionAbortedError.prototype = Object.create(Error.prototype);\n    TransitionAbortedError.prototype.constructor = TransitionAbortedError;\n\n    function TransitionAbortedError(message) {\n      var error = Error.call(this, message);\n      this.name = 'TransitionAborted';\n      this.message = message || 'TransitionAborted';\n\n      if (Error.captureStackTrace) {\n        Error.captureStackTrace(this, TransitionAbortedError);\n      } else {\n        this.stack = error.stack;\n      }\n    }\n\n    return TransitionAbortedError;\n  }();\n\n  var slice = Array.prototype.slice;\n  var hasOwnProperty = Object.prototype.hasOwnProperty;\n  /**\n    Determines if an object is Promise by checking if it is \"thenable\".\n  **/\n\n  function isPromise(p) {\n    return p !== null && typeof p === 'object' && typeof p.then === 'function';\n  }\n\n  function merge(hash, other) {\n    for (var prop in other) {\n      if (hasOwnProperty.call(other, prop)) {\n        hash[prop] = other[prop];\n      }\n    }\n  }\n  /**\n    @private\n  \n    Extracts query params from the end of an array\n  **/\n\n\n  function extractQueryParams(array) {\n    var len = array && array.length,\n        head,\n        queryParams;\n\n    if (len && len > 0) {\n      var obj = array[len - 1];\n\n      if (isQueryParams(obj)) {\n        queryParams = obj.queryParams;\n        head = slice.call(array, 0, len - 1);\n        return [head, queryParams];\n      }\n    }\n\n    return [array, null];\n  }\n\n  function isQueryParams(obj) {\n    return obj && hasOwnProperty.call(obj, 'queryParams');\n  }\n  /**\n    @private\n  \n    Coerces query param properties and array elements into strings.\n  **/\n\n\n  function coerceQueryParamsToString(queryParams) {\n    for (var key in queryParams) {\n      var val = queryParams[key];\n\n      if (typeof val === 'number') {\n        queryParams[key] = '' + val;\n      } else if (Array.isArray(val)) {\n        for (var i = 0, l = val.length; i < l; i++) {\n          val[i] = '' + val[i];\n        }\n      }\n    }\n  }\n  /**\n    @private\n   */\n\n\n  function log(router, ...args) {\n    if (!router.log) {\n      return;\n    }\n\n    if (args.length === 2) {\n      var [sequence, msg] = args;\n      router.log('Transition #' + sequence + ': ' + msg);\n    } else {\n      var [_msg] = args;\n      router.log(_msg);\n    }\n  }\n\n  function isParam(object) {\n    return typeof object === 'string' || object instanceof String || typeof object === 'number' || object instanceof Number;\n  }\n\n  function forEach(array, callback) {\n    for (var i = 0, l = array.length; i < l && callback(array[i]) !== false; i++) {// empty intentionally\n    }\n  }\n\n  function getChangelist(oldObject, newObject) {\n    var key;\n    var results = {\n      all: {},\n      changed: {},\n      removed: {}\n    };\n    merge(results.all, newObject);\n    var didChange = false;\n    coerceQueryParamsToString(oldObject);\n    coerceQueryParamsToString(newObject); // Calculate removals\n\n    for (key in oldObject) {\n      if (hasOwnProperty.call(oldObject, key)) {\n        if (!hasOwnProperty.call(newObject, key)) {\n          didChange = true;\n          results.removed[key] = oldObject[key];\n        }\n      }\n    } // Calculate changes\n\n\n    for (key in newObject) {\n      if (hasOwnProperty.call(newObject, key)) {\n        var oldElement = oldObject[key];\n        var newElement = newObject[key];\n\n        if (isArray(oldElement) && isArray(newElement)) {\n          if (oldElement.length !== newElement.length) {\n            results.changed[key] = newObject[key];\n            didChange = true;\n          } else {\n            for (var i = 0, l = oldElement.length; i < l; i++) {\n              if (oldElement[i] !== newElement[i]) {\n                results.changed[key] = newObject[key];\n                didChange = true;\n              }\n            }\n          }\n        } else if (oldObject[key] !== newObject[key]) {\n          results.changed[key] = newObject[key];\n          didChange = true;\n        }\n      }\n    }\n\n    return didChange ? results : undefined;\n  }\n\n  function isArray(obj) {\n    return Array.isArray(obj);\n  }\n\n  function promiseLabel(label) {\n    return 'Router: ' + label;\n  }\n\n  var STATE_SYMBOL = `__STATE__-2619860001345920-3322w3`;\n  _exports.STATE_SYMBOL = STATE_SYMBOL;\n  var PARAMS_SYMBOL = `__PARAMS__-261986232992830203-23323`;\n  _exports.PARAMS_SYMBOL = PARAMS_SYMBOL;\n  var QUERY_PARAMS_SYMBOL = `__QPS__-2619863929824844-32323`;\n  /**\n    A Transition is a thennable (a promise-like object) that represents\n    an attempt to transition to another route. It can be aborted, either\n    explicitly via `abort` or by attempting another transition while a\n    previous one is still underway. An aborted transition can also\n    be `retry()`d later.\n  \n    @class Transition\n    @constructor\n    @param {Object} router\n    @param {Object} intent\n    @param {Object} state\n    @param {Object} error\n    @private\n   */\n\n  _exports.QUERY_PARAMS_SYMBOL = QUERY_PARAMS_SYMBOL;\n\n  class Transition {\n    constructor(router, intent, state, error = undefined, previousTransition = undefined) {\n      this.from = null;\n      this.to = undefined;\n      this.isAborted = false;\n      this.isActive = true;\n      this.urlMethod = 'update';\n      this.resolveIndex = 0;\n      this.queryParamsOnly = false;\n      this.isTransition = true;\n      this.isCausedByAbortingTransition = false;\n      this.isCausedByInitialTransition = false;\n      this.isCausedByAbortingReplaceTransition = false;\n      this._visibleQueryParams = {};\n      this[STATE_SYMBOL] = state || router.state;\n      this.intent = intent;\n      this.router = router;\n      this.data = intent && intent.data || {};\n      this.resolvedModels = {};\n      this[QUERY_PARAMS_SYMBOL] = {};\n      this.promise = undefined;\n      this.error = undefined;\n      this[PARAMS_SYMBOL] = {};\n      this.routeInfos = [];\n      this.targetName = undefined;\n      this.pivotHandler = undefined;\n      this.sequence = -1;\n\n      if (error) {\n        this.promise = _rsvp.Promise.reject(error);\n        this.error = error;\n        return;\n      } // if you're doing multiple redirects, need the new transition to know if it\n      // is actually part of the first transition or not. Any further redirects\n      // in the initial transition also need to know if they are part of the\n      // initial transition\n\n\n      this.isCausedByAbortingTransition = !!previousTransition;\n      this.isCausedByInitialTransition = !!previousTransition && (previousTransition.isCausedByInitialTransition || previousTransition.sequence === 0); // Every transition in the chain is a replace\n\n      this.isCausedByAbortingReplaceTransition = !!previousTransition && previousTransition.urlMethod === 'replace' && (!previousTransition.isCausedByAbortingTransition || previousTransition.isCausedByAbortingReplaceTransition);\n\n      if (state) {\n        this[PARAMS_SYMBOL] = state.params;\n        this[QUERY_PARAMS_SYMBOL] = state.queryParams;\n        this.routeInfos = state.routeInfos;\n        var len = state.routeInfos.length;\n\n        if (len) {\n          this.targetName = state.routeInfos[len - 1].name;\n        }\n\n        for (var i = 0; i < len; ++i) {\n          var handlerInfo = state.routeInfos[i]; // TODO: this all seems hacky\n\n          if (!handlerInfo.isResolved) {\n            break;\n          }\n\n          this.pivotHandler = handlerInfo.route;\n        }\n\n        this.sequence = router.currentSequence++;\n        this.promise = state.resolve(() => {\n          if (this.isAborted) {\n            return _rsvp.Promise.reject(false, promiseLabel('Transition aborted - reject'));\n          }\n\n          return _rsvp.Promise.resolve(true);\n        }, this).catch(result => {\n          return _rsvp.Promise.reject(this.router.transitionDidError(result, this));\n        }, promiseLabel('Handle Abort'));\n      } else {\n        this.promise = _rsvp.Promise.resolve(this[STATE_SYMBOL]);\n        this[PARAMS_SYMBOL] = {};\n      }\n    }\n    /**\n      The Transition's internal promise. Calling `.then` on this property\n      is that same as calling `.then` on the Transition object itself, but\n      this property is exposed for when you want to pass around a\n      Transition's promise, but not the Transition object itself, since\n      Transition object can be externally `abort`ed, while the promise\n      cannot.\n         @property promise\n      @type {Object}\n      @public\n     */\n\n    /**\n      Custom state can be stored on a Transition's `data` object.\n      This can be useful for decorating a Transition within an earlier\n      hook and shared with a later hook. Properties set on `data` will\n      be copied to new transitions generated by calling `retry` on this\n      transition.\n         @property data\n      @type {Object}\n      @public\n     */\n\n    /**\n      A standard promise hook that resolves if the transition\n      succeeds and rejects if it fails/redirects/aborts.\n         Forwards to the internal `promise` property which you can\n      use in situations where you want to pass around a thennable,\n      but not the Transition itself.\n         @method then\n      @param {Function} onFulfilled\n      @param {Function} onRejected\n      @param {String} label optional string for labeling the promise.\n      Useful for tooling.\n      @return {Promise}\n      @public\n     */\n\n\n    then(onFulfilled, onRejected, label) {\n      return this.promise.then(onFulfilled, onRejected, label);\n    }\n    /**\n         Forwards to the internal `promise` property which you can\n      use in situations where you want to pass around a thennable,\n      but not the Transition itself.\n         @method catch\n      @param {Function} onRejection\n      @param {String} label optional string for labeling the promise.\n      Useful for tooling.\n      @return {Promise}\n      @public\n     */\n\n\n    catch(onRejection, label) {\n      return this.promise.catch(onRejection, label);\n    }\n    /**\n         Forwards to the internal `promise` property which you can\n      use in situations where you want to pass around a thennable,\n      but not the Transition itself.\n         @method finally\n      @param {Function} callback\n      @param {String} label optional string for labeling the promise.\n      Useful for tooling.\n      @return {Promise}\n      @public\n     */\n\n\n    finally(callback, label) {\n      return this.promise.finally(callback, label);\n    }\n    /**\n      Aborts the Transition. Note you can also implicitly abort a transition\n      by initiating another transition while a previous one is underway.\n         @method abort\n      @return {Transition} this transition\n      @public\n     */\n\n\n    abort() {\n      this.rollback();\n      var transition = new Transition(this.router, undefined, undefined, undefined);\n      transition.to = this.from;\n      transition.from = this.from;\n      transition.isAborted = true;\n      this.router.routeWillChange(transition);\n      this.router.routeDidChange(transition);\n      return this;\n    }\n\n    rollback() {\n      if (!this.isAborted) {\n        log(this.router, this.sequence, this.targetName + ': transition was aborted');\n\n        if (this.intent !== undefined && this.intent !== null) {\n          this.intent.preTransitionState = this.router.state;\n        }\n\n        this.isAborted = true;\n        this.isActive = false;\n        this.router.activeTransition = undefined;\n      }\n    }\n\n    redirect(newTransition) {\n      this.rollback();\n      this.router.routeWillChange(newTransition);\n    }\n    /**\n         Retries a previously-aborted transition (making sure to abort the\n      transition if it's still active). Returns a new transition that\n      represents the new attempt to transition.\n         @method retry\n      @return {Transition} new transition\n      @public\n     */\n\n\n    retry() {\n      // TODO: add tests for merged state retry()s\n      this.abort();\n      var newTransition = this.router.transitionByIntent(this.intent, false); // inheriting a `null` urlMethod is not valid\n      // the urlMethod is only set to `null` when\n      // the transition is initiated *after* the url\n      // has been updated (i.e. `router.handleURL`)\n      //\n      // in that scenario, the url method cannot be\n      // inherited for a new transition because then\n      // the url would not update even though it should\n\n      if (this.urlMethod !== null) {\n        newTransition.method(this.urlMethod);\n      }\n\n      return newTransition;\n    }\n    /**\n         Sets the URL-changing method to be employed at the end of a\n      successful transition. By default, a new Transition will just\n      use `updateURL`, but passing 'replace' to this method will\n      cause the URL to update using 'replaceWith' instead. Omitting\n      a parameter will disable the URL change, allowing for transitions\n      that don't update the URL at completion (this is also used for\n      handleURL, since the URL has already changed before the\n      transition took place).\n         @method method\n      @param {String} method the type of URL-changing method to use\n        at the end of a transition. Accepted values are 'replace',\n        falsy values, or any other non-falsy value (which is\n        interpreted as an updateURL transition).\n         @return {Transition} this transition\n      @public\n     */\n\n\n    method(method) {\n      this.urlMethod = method;\n      return this;\n    } // Alias 'trigger' as 'send'\n\n\n    send(ignoreFailure = false, _name, err, transition, handler) {\n      this.trigger(ignoreFailure, _name, err, transition, handler);\n    }\n    /**\n         Fires an event on the current list of resolved/resolving\n      handlers within this transition. Useful for firing events\n      on route hierarchies that haven't fully been entered yet.\n         Note: This method is also aliased as `send`\n         @method trigger\n      @param {Boolean} [ignoreFailure=false] a boolean specifying whether unhandled events throw an error\n      @param {String} name the name of the event to fire\n      @public\n     */\n\n\n    trigger(ignoreFailure = false, name, ...args) {\n      // TODO: Deprecate the current signature\n      if (typeof ignoreFailure === 'string') {\n        name = ignoreFailure;\n        ignoreFailure = false;\n      }\n\n      this.router.triggerEvent(this[STATE_SYMBOL].routeInfos.slice(0, this.resolveIndex + 1), ignoreFailure, name, args);\n    }\n    /**\n      Transitions are aborted and their promises rejected\n      when redirects occur; this method returns a promise\n      that will follow any redirects that occur and fulfill\n      with the value fulfilled by any redirecting transitions\n      that occur.\n         @method followRedirects\n      @return {Promise} a promise that fulfills with the same\n        value that the final redirecting transition fulfills with\n      @public\n     */\n\n\n    followRedirects() {\n      var router = this.router;\n      return this.promise.catch(function (reason) {\n        if (router.activeTransition) {\n          return router.activeTransition.followRedirects();\n        }\n\n        return _rsvp.Promise.reject(reason);\n      });\n    }\n\n    toString() {\n      return 'Transition (sequence ' + this.sequence + ')';\n    }\n    /**\n      @private\n     */\n\n\n    log(message) {\n      log(this.router, this.sequence, message);\n    }\n\n  }\n  /**\n    @private\n  \n    Logs and returns an instance of TransitionAborted.\n   */\n\n\n  _exports.InternalTransition = Transition;\n\n  function logAbort(transition) {\n    log(transition.router, transition.sequence, 'detected abort.');\n    return new TransitionAbortedError();\n  }\n\n  function isTransition(obj) {\n    return typeof obj === 'object' && obj instanceof Transition && obj.isTransition;\n  }\n\n  function prepareResult(obj) {\n    if (isTransition(obj)) {\n      return null;\n    }\n\n    return obj;\n  }\n\n  var ROUTE_INFOS = new WeakMap();\n\n  function toReadOnlyRouteInfo(routeInfos, queryParams = {}, includeAttributes = false) {\n    return routeInfos.map((info, i) => {\n      var {\n        name,\n        params,\n        paramNames,\n        context,\n        route\n      } = info;\n\n      if (ROUTE_INFOS.has(info) && includeAttributes) {\n        var _routeInfo = ROUTE_INFOS.get(info);\n\n        _routeInfo = attachMetadata(route, _routeInfo);\n        var routeInfoWithAttribute = createRouteInfoWithAttributes(_routeInfo, context);\n        ROUTE_INFOS.set(info, routeInfoWithAttribute);\n        return routeInfoWithAttribute;\n      }\n\n      var routeInfo = {\n        find(predicate, thisArg) {\n          var publicInfo;\n          var arr = [];\n\n          if (predicate.length === 3) {\n            arr = routeInfos.map(info => ROUTE_INFOS.get(info));\n          }\n\n          for (var _i = 0; routeInfos.length > _i; _i++) {\n            publicInfo = ROUTE_INFOS.get(routeInfos[_i]);\n\n            if (predicate.call(thisArg, publicInfo, _i, arr)) {\n              return publicInfo;\n            }\n          }\n\n          return undefined;\n        },\n\n        get name() {\n          return name;\n        },\n\n        get paramNames() {\n          return paramNames;\n        },\n\n        get metadata() {\n          return buildRouteInfoMetadata(info.route);\n        },\n\n        get parent() {\n          var parent = routeInfos[i - 1];\n\n          if (parent === undefined) {\n            return null;\n          }\n\n          return ROUTE_INFOS.get(parent);\n        },\n\n        get child() {\n          var child = routeInfos[i + 1];\n\n          if (child === undefined) {\n            return null;\n          }\n\n          return ROUTE_INFOS.get(child);\n        },\n\n        get localName() {\n          var parts = this.name.split('.');\n          return parts[parts.length - 1];\n        },\n\n        get params() {\n          return params;\n        },\n\n        get queryParams() {\n          return queryParams;\n        }\n\n      };\n\n      if (includeAttributes) {\n        routeInfo = createRouteInfoWithAttributes(routeInfo, context);\n      }\n\n      ROUTE_INFOS.set(info, routeInfo);\n      return routeInfo;\n    });\n  }\n\n  function createRouteInfoWithAttributes(routeInfo, context) {\n    var attributes = {\n      get attributes() {\n        return context;\n      }\n\n    };\n\n    if (Object.isFrozen(routeInfo) || routeInfo.hasOwnProperty('attributes')) {\n      return Object.freeze((0, _polyfills.assign)({}, routeInfo, attributes));\n    }\n\n    return (0, _polyfills.assign)(routeInfo, attributes);\n  }\n\n  function buildRouteInfoMetadata(route) {\n    if (route !== undefined && route !== null && route.buildRouteInfoMetadata !== undefined) {\n      return route.buildRouteInfoMetadata();\n    }\n\n    return null;\n  }\n\n  function attachMetadata(route, routeInfo) {\n    var metadata = {\n      get metadata() {\n        return buildRouteInfoMetadata(route);\n      }\n\n    };\n\n    if (Object.isFrozen(routeInfo) || routeInfo.hasOwnProperty('metadata')) {\n      return Object.freeze((0, _polyfills.assign)({}, routeInfo, metadata));\n    }\n\n    return (0, _polyfills.assign)(routeInfo, metadata);\n  }\n\n  class InternalRouteInfo {\n    constructor(router, name, paramNames, route) {\n      this._routePromise = undefined;\n      this._route = null;\n      this.params = {};\n      this.isResolved = false;\n      this.name = name;\n      this.paramNames = paramNames;\n      this.router = router;\n\n      if (route) {\n        this._processRoute(route);\n      }\n    }\n\n    getModel(_transition) {\n      return _rsvp.Promise.resolve(this.context);\n    }\n\n    serialize(_context) {\n      return this.params || {};\n    }\n\n    resolve(shouldContinue, transition) {\n      return _rsvp.Promise.resolve(this.routePromise).then(route => this.checkForAbort(shouldContinue, route)).then(() => this.runBeforeModelHook(transition)).then(() => this.checkForAbort(shouldContinue, null)).then(() => this.getModel(transition)).then(resolvedModel => this.checkForAbort(shouldContinue, resolvedModel)).then(resolvedModel => this.runAfterModelHook(transition, resolvedModel)).then(resolvedModel => this.becomeResolved(transition, resolvedModel));\n    }\n\n    becomeResolved(transition, resolvedContext) {\n      var params = this.serialize(resolvedContext);\n\n      if (transition) {\n        this.stashResolvedModel(transition, resolvedContext);\n        transition[PARAMS_SYMBOL] = transition[PARAMS_SYMBOL] || {};\n        transition[PARAMS_SYMBOL][this.name] = params;\n      }\n\n      var context;\n      var contextsMatch = resolvedContext === this.context;\n\n      if ('context' in this || !contextsMatch) {\n        context = resolvedContext;\n      }\n\n      var cached = ROUTE_INFOS.get(this);\n      var resolved = new ResolvedRouteInfo(this.router, this.name, this.paramNames, params, this.route, context);\n\n      if (cached !== undefined) {\n        ROUTE_INFOS.set(resolved, cached);\n      }\n\n      return resolved;\n    }\n\n    shouldSupercede(routeInfo) {\n      // Prefer this newer routeInfo over `other` if:\n      // 1) The other one doesn't exist\n      // 2) The names don't match\n      // 3) This route has a context that doesn't match\n      //    the other one (or the other one doesn't have one).\n      // 4) This route has parameters that don't match the other.\n      if (!routeInfo) {\n        return true;\n      }\n\n      var contextsMatch = routeInfo.context === this.context;\n      return routeInfo.name !== this.name || 'context' in this && !contextsMatch || this.hasOwnProperty('params') && !paramsMatch(this.params, routeInfo.params);\n    }\n\n    get route() {\n      // _route could be set to either a route object or undefined, so we\n      // compare against null to know when it's been set\n      if (this._route !== null) {\n        return this._route;\n      }\n\n      return this.fetchRoute();\n    }\n\n    set route(route) {\n      this._route = route;\n    }\n\n    get routePromise() {\n      if (this._routePromise) {\n        return this._routePromise;\n      }\n\n      this.fetchRoute();\n      return this._routePromise;\n    }\n\n    set routePromise(routePromise) {\n      this._routePromise = routePromise;\n    }\n\n    log(transition, message) {\n      if (transition.log) {\n        transition.log(this.name + ': ' + message);\n      }\n    }\n\n    updateRoute(route) {\n      route._internalName = this.name;\n      return this.route = route;\n    }\n\n    runBeforeModelHook(transition) {\n      if (transition.trigger) {\n        transition.trigger(true, 'willResolveModel', transition, this.route);\n      }\n\n      var result;\n\n      if (this.route) {\n        if (this.route.beforeModel !== undefined) {\n          result = this.route.beforeModel(transition);\n        }\n      }\n\n      if (isTransition(result)) {\n        result = null;\n      }\n\n      return _rsvp.Promise.resolve(result);\n    }\n\n    runAfterModelHook(transition, resolvedModel) {\n      // Stash the resolved model on the payload.\n      // This makes it possible for users to swap out\n      // the resolved model in afterModel.\n      var name = this.name;\n      this.stashResolvedModel(transition, resolvedModel);\n      var result;\n\n      if (this.route !== undefined) {\n        if (this.route.afterModel !== undefined) {\n          result = this.route.afterModel(resolvedModel, transition);\n        }\n      }\n\n      result = prepareResult(result);\n      return _rsvp.Promise.resolve(result).then(() => {\n        // Ignore the fulfilled value returned from afterModel.\n        // Return the value stashed in resolvedModels, which\n        // might have been swapped out in afterModel.\n        return transition.resolvedModels[name];\n      });\n    }\n\n    checkForAbort(shouldContinue, value) {\n      return _rsvp.Promise.resolve(shouldContinue()).then(function () {\n        // We don't care about shouldContinue's resolve value;\n        // pass along the original value passed to this fn.\n        return value;\n      }, null);\n    }\n\n    stashResolvedModel(transition, resolvedModel) {\n      transition.resolvedModels = transition.resolvedModels || {};\n      transition.resolvedModels[this.name] = resolvedModel;\n    }\n\n    fetchRoute() {\n      var route = this.router.getRoute(this.name);\n      return this._processRoute(route);\n    }\n\n    _processRoute(route) {\n      // Setup a routePromise so that we can wait for asynchronously loaded routes\n      this.routePromise = _rsvp.Promise.resolve(route); // Wait until the 'route' property has been updated when chaining to a route\n      // that is a promise\n\n      if (isPromise(route)) {\n        this.routePromise = this.routePromise.then(r => {\n          return this.updateRoute(r);\n        }); // set to undefined to avoid recursive loop in the route getter\n\n        return this.route = undefined;\n      } else if (route) {\n        return this.updateRoute(route);\n      }\n\n      return undefined;\n    }\n\n  }\n\n  _exports.InternalRouteInfo = InternalRouteInfo;\n\n  class ResolvedRouteInfo extends InternalRouteInfo {\n    constructor(router, name, paramNames, params, route, context) {\n      super(router, name, paramNames, route);\n      this.params = params;\n      this.isResolved = true;\n      this.context = context;\n    }\n\n    resolve(_shouldContinue, transition) {\n      // A ResolvedRouteInfo just resolved with itself.\n      if (transition && transition.resolvedModels) {\n        transition.resolvedModels[this.name] = this.context;\n      }\n\n      return _rsvp.Promise.resolve(this);\n    }\n\n  }\n\n  class UnresolvedRouteInfoByParam extends InternalRouteInfo {\n    constructor(router, name, paramNames, params, route) {\n      super(router, name, paramNames, route);\n      this.params = {};\n      this.params = params;\n    }\n\n    getModel(transition) {\n      var fullParams = this.params;\n\n      if (transition && transition[QUERY_PARAMS_SYMBOL]) {\n        fullParams = {};\n        merge(fullParams, this.params);\n        fullParams.queryParams = transition[QUERY_PARAMS_SYMBOL];\n      }\n\n      var route = this.route;\n      var result = undefined;\n\n      if (route.deserialize) {\n        result = route.deserialize(fullParams, transition);\n      } else if (route.model) {\n        result = route.model(fullParams, transition);\n      }\n\n      if (result && isTransition(result)) {\n        result = undefined;\n      }\n\n      return _rsvp.Promise.resolve(result);\n    }\n\n  }\n\n  class UnresolvedRouteInfoByObject extends InternalRouteInfo {\n    constructor(router, name, paramNames, context) {\n      super(router, name, paramNames);\n      this.context = context;\n      this.serializer = this.router.getSerializer(name);\n    }\n\n    getModel(transition) {\n      if (this.router.log !== undefined) {\n        this.router.log(this.name + ': resolving provided model');\n      }\n\n      return super.getModel(transition);\n    }\n    /**\n      @private\n         Serializes a route using its custom `serialize` method or\n      by a default that looks up the expected property name from\n      the dynamic segment.\n         @param {Object} model the model to be serialized for this route\n    */\n\n\n    serialize(model) {\n      var {\n        paramNames,\n        context\n      } = this;\n\n      if (!model) {\n        model = context;\n      }\n\n      var object = {};\n\n      if (isParam(model)) {\n        object[paramNames[0]] = model;\n        return object;\n      } // Use custom serialize if it exists.\n\n\n      if (this.serializer) {\n        // invoke this.serializer unbound (getSerializer returns a stateless function)\n        return this.serializer.call(null, model, paramNames);\n      } else if (this.route !== undefined) {\n        if (this.route.serialize) {\n          return this.route.serialize(model, paramNames);\n        }\n      }\n\n      if (paramNames.length !== 1) {\n        return;\n      }\n\n      var name = paramNames[0];\n\n      if (/_id$/.test(name)) {\n        object[name] = model.id;\n      } else {\n        object[name] = model;\n      }\n\n      return object;\n    }\n\n  }\n\n  function paramsMatch(a, b) {\n    if (!a !== !b) {\n      // Only one is null.\n      return false;\n    }\n\n    if (!a) {\n      // Both must be null.\n      return true;\n    } // Note: this assumes that both params have the same\n    // number of keys, but since we're comparing the\n    // same routes, they should.\n\n\n    for (var k in a) {\n      if (a.hasOwnProperty(k) && a[k] !== b[k]) {\n        return false;\n      }\n    }\n\n    return true;\n  }\n\n  class TransitionIntent {\n    constructor(router, data = {}) {\n      this.router = router;\n      this.data = data;\n    }\n\n  }\n\n  class TransitionState {\n    constructor() {\n      this.routeInfos = [];\n      this.queryParams = {};\n      this.params = {};\n    }\n\n    promiseLabel(label) {\n      var targetName = '';\n      forEach(this.routeInfos, function (routeInfo) {\n        if (targetName !== '') {\n          targetName += '.';\n        }\n\n        targetName += routeInfo.name;\n        return true;\n      });\n      return promiseLabel(\"'\" + targetName + \"': \" + label);\n    }\n\n    resolve(shouldContinue, transition) {\n      // First, calculate params for this state. This is useful\n      // information to provide to the various route hooks.\n      var params = this.params;\n      forEach(this.routeInfos, routeInfo => {\n        params[routeInfo.name] = routeInfo.params || {};\n        return true;\n      });\n      transition.resolveIndex = 0;\n      var currentState = this;\n      var wasAborted = false; // The prelude RSVP.resolve() asyncs us into the promise land.\n\n      return _rsvp.Promise.resolve(null, this.promiseLabel('Start transition')).then(resolveOneRouteInfo, null, this.promiseLabel('Resolve route')).catch(handleError, this.promiseLabel('Handle error'));\n\n      function innerShouldContinue() {\n        return _rsvp.Promise.resolve(shouldContinue(), currentState.promiseLabel('Check if should continue')).catch(function (reason) {\n          // We distinguish between errors that occurred\n          // during resolution (e.g. before\"Model/model/afterModel),\n          // and aborts due to a rejecting promise from shouldContinue().\n          wasAborted = true;\n          return _rsvp.Promise.reject(reason);\n        }, currentState.promiseLabel('Handle abort'));\n      }\n\n      function handleError(error) {\n        // This is the only possible\n        // reject value of TransitionState#resolve\n        var routeInfos = currentState.routeInfos;\n        var errorHandlerIndex = transition.resolveIndex >= routeInfos.length ? routeInfos.length - 1 : transition.resolveIndex;\n        return _rsvp.Promise.reject(new TransitionError(error, currentState.routeInfos[errorHandlerIndex].route, wasAborted, currentState));\n      }\n\n      function proceed(resolvedRouteInfo) {\n        var wasAlreadyResolved = currentState.routeInfos[transition.resolveIndex].isResolved; // Swap the previously unresolved routeInfo with\n        // the resolved routeInfo\n\n        currentState.routeInfos[transition.resolveIndex++] = resolvedRouteInfo;\n\n        if (!wasAlreadyResolved) {\n          // Call the redirect hook. The reason we call it here\n          // vs. afterModel is so that redirects into child\n          // routes don't re-run the model hooks for this\n          // already-resolved route.\n          var {\n            route\n          } = resolvedRouteInfo;\n\n          if (route !== undefined) {\n            if (route.redirect) {\n              route.redirect(resolvedRouteInfo.context, transition);\n            }\n          }\n        } // Proceed after ensuring that the redirect hook\n        // didn't abort this transition by transitioning elsewhere.\n\n\n        return innerShouldContinue().then(resolveOneRouteInfo, null, currentState.promiseLabel('Resolve route'));\n      }\n\n      function resolveOneRouteInfo() {\n        if (transition.resolveIndex === currentState.routeInfos.length) {\n          // This is is the only possible\n          // fulfill value of TransitionState#resolve\n          return currentState;\n        }\n\n        var routeInfo = currentState.routeInfos[transition.resolveIndex];\n        return routeInfo.resolve(innerShouldContinue, transition).then(proceed, null, currentState.promiseLabel('Proceed'));\n      }\n    }\n\n  }\n\n  _exports.TransitionState = TransitionState;\n\n  class TransitionError {\n    constructor(error, route, wasAborted, state) {\n      this.error = error;\n      this.route = route;\n      this.wasAborted = wasAborted;\n      this.state = state;\n    }\n\n  }\n\n  _exports.TransitionError = TransitionError;\n\n  class NamedTransitionIntent extends TransitionIntent {\n    constructor(router, name, pivotHandler, contexts = [], queryParams = {}, data) {\n      super(router, data);\n      this.preTransitionState = undefined;\n      this.name = name;\n      this.pivotHandler = pivotHandler;\n      this.contexts = contexts;\n      this.queryParams = queryParams;\n    }\n\n    applyToState(oldState, isIntermediate) {\n      // TODO: WTF fix me\n      var partitionedArgs = extractQueryParams([this.name].concat(this.contexts)),\n          pureArgs = partitionedArgs[0],\n          handlers = this.router.recognizer.handlersFor(pureArgs[0]);\n      var targetRouteName = handlers[handlers.length - 1].handler;\n      return this.applyToHandlers(oldState, handlers, targetRouteName, isIntermediate, false);\n    }\n\n    applyToHandlers(oldState, parsedHandlers, targetRouteName, isIntermediate, checkingIfActive) {\n      var i, len;\n      var newState = new TransitionState();\n      var objects = this.contexts.slice(0);\n      var invalidateIndex = parsedHandlers.length; // Pivot handlers are provided for refresh transitions\n\n      if (this.pivotHandler) {\n        for (i = 0, len = parsedHandlers.length; i < len; ++i) {\n          if (parsedHandlers[i].handler === this.pivotHandler._internalName) {\n            invalidateIndex = i;\n            break;\n          }\n        }\n      }\n\n      for (i = parsedHandlers.length - 1; i >= 0; --i) {\n        var result = parsedHandlers[i];\n        var name = result.handler;\n        var oldHandlerInfo = oldState.routeInfos[i];\n        var newHandlerInfo = null;\n\n        if (result.names.length > 0) {\n          if (i >= invalidateIndex) {\n            newHandlerInfo = this.createParamHandlerInfo(name, result.names, objects, oldHandlerInfo);\n          } else {\n            newHandlerInfo = this.getHandlerInfoForDynamicSegment(name, result.names, objects, oldHandlerInfo, targetRouteName, i);\n          }\n        } else {\n          // This route has no dynamic segment.\n          // Therefore treat as a param-based handlerInfo\n          // with empty params. This will cause the `model`\n          // hook to be called with empty params, which is desirable.\n          newHandlerInfo = this.createParamHandlerInfo(name, result.names, objects, oldHandlerInfo);\n        }\n\n        if (checkingIfActive) {\n          // If we're performing an isActive check, we want to\n          // serialize URL params with the provided context, but\n          // ignore mismatches between old and new context.\n          newHandlerInfo = newHandlerInfo.becomeResolved(null, newHandlerInfo.context);\n          var oldContext = oldHandlerInfo && oldHandlerInfo.context;\n\n          if (result.names.length > 0 && oldHandlerInfo.context !== undefined && newHandlerInfo.context === oldContext) {\n            // If contexts match in isActive test, assume params also match.\n            // This allows for flexibility in not requiring that every last\n            // handler provide a `serialize` method\n            newHandlerInfo.params = oldHandlerInfo && oldHandlerInfo.params;\n          }\n\n          newHandlerInfo.context = oldContext;\n        }\n\n        var handlerToUse = oldHandlerInfo;\n\n        if (i >= invalidateIndex || newHandlerInfo.shouldSupercede(oldHandlerInfo)) {\n          invalidateIndex = Math.min(i, invalidateIndex);\n          handlerToUse = newHandlerInfo;\n        }\n\n        if (isIntermediate && !checkingIfActive) {\n          handlerToUse = handlerToUse.becomeResolved(null, handlerToUse.context);\n        }\n\n        newState.routeInfos.unshift(handlerToUse);\n      }\n\n      if (objects.length > 0) {\n        throw new Error('More context objects were passed than there are dynamic segments for the route: ' + targetRouteName);\n      }\n\n      if (!isIntermediate) {\n        this.invalidateChildren(newState.routeInfos, invalidateIndex);\n      }\n\n      merge(newState.queryParams, this.queryParams || {});\n      return newState;\n    }\n\n    invalidateChildren(handlerInfos, invalidateIndex) {\n      for (var i = invalidateIndex, l = handlerInfos.length; i < l; ++i) {\n        var handlerInfo = handlerInfos[i];\n\n        if (handlerInfo.isResolved) {\n          var {\n            name,\n            params,\n            route,\n            paramNames\n          } = handlerInfos[i];\n          handlerInfos[i] = new UnresolvedRouteInfoByParam(this.router, name, paramNames, params, route);\n        }\n      }\n    }\n\n    getHandlerInfoForDynamicSegment(name, names, objects, oldHandlerInfo, _targetRouteName, i) {\n      var objectToUse;\n\n      if (objects.length > 0) {\n        // Use the objects provided for this transition.\n        objectToUse = objects[objects.length - 1];\n\n        if (isParam(objectToUse)) {\n          return this.createParamHandlerInfo(name, names, objects, oldHandlerInfo);\n        } else {\n          objects.pop();\n        }\n      } else if (oldHandlerInfo && oldHandlerInfo.name === name) {\n        // Reuse the matching oldHandlerInfo\n        return oldHandlerInfo;\n      } else {\n        if (this.preTransitionState) {\n          var preTransitionHandlerInfo = this.preTransitionState.routeInfos[i];\n          objectToUse = preTransitionHandlerInfo && preTransitionHandlerInfo.context;\n        } else {\n          // Ideally we should throw this error to provide maximal\n          // information to the user that not enough context objects\n          // were provided, but this proves too cumbersome in Ember\n          // in cases where inner template helpers are evaluated\n          // before parent helpers un-render, in which cases this\n          // error somewhat prematurely fires.\n          //throw new Error(\"Not enough context objects were provided to complete a transition to \" + targetRouteName + \". Specifically, the \" + name + \" route needs an object that can be serialized into its dynamic URL segments [\" + names.join(', ') + \"]\");\n          return oldHandlerInfo;\n        }\n      }\n\n      return new UnresolvedRouteInfoByObject(this.router, name, names, objectToUse);\n    }\n\n    createParamHandlerInfo(name, names, objects, oldHandlerInfo) {\n      var params = {}; // Soak up all the provided string/numbers\n\n      var numNames = names.length;\n      var missingParams = [];\n\n      while (numNames--) {\n        // Only use old params if the names match with the new handler\n        var oldParams = oldHandlerInfo && name === oldHandlerInfo.name && oldHandlerInfo.params || {};\n        var peek = objects[objects.length - 1];\n        var paramName = names[numNames];\n\n        if (isParam(peek)) {\n          params[paramName] = '' + objects.pop();\n        } else {\n          // If we're here, this means only some of the params\n          // were string/number params, so try and use a param\n          // value from a previous handler.\n          if (oldParams.hasOwnProperty(paramName)) {\n            params[paramName] = oldParams[paramName];\n          } else {\n            missingParams.push(paramName);\n          }\n        }\n      }\n\n      if (missingParams.length > 0) {\n        throw new Error(`You didn't provide enough string/numeric parameters to satisfy all of the dynamic segments for route ${name}.` + ` Missing params: ${missingParams}`);\n      }\n\n      return new UnresolvedRouteInfoByParam(this.router, name, names, params);\n    }\n\n  }\n\n  var UnrecognizedURLError = function () {\n    UnrecognizedURLError.prototype = Object.create(Error.prototype);\n    UnrecognizedURLError.prototype.constructor = UnrecognizedURLError;\n\n    function UnrecognizedURLError(message) {\n      var error = Error.call(this, message);\n      this.name = 'UnrecognizedURLError';\n      this.message = message || 'UnrecognizedURL';\n\n      if (Error.captureStackTrace) {\n        Error.captureStackTrace(this, UnrecognizedURLError);\n      } else {\n        this.stack = error.stack;\n      }\n    }\n\n    return UnrecognizedURLError;\n  }();\n\n  class URLTransitionIntent extends TransitionIntent {\n    constructor(router, url, data) {\n      super(router, data);\n      this.url = url;\n      this.preTransitionState = undefined;\n    }\n\n    applyToState(oldState) {\n      var newState = new TransitionState();\n      var results = this.router.recognizer.recognize(this.url),\n          i,\n          len;\n\n      if (!results) {\n        throw new UnrecognizedURLError(this.url);\n      }\n\n      var statesDiffer = false;\n      var _url = this.url; // Checks if a handler is accessible by URL. If it is not, an error is thrown.\n      // For the case where the handler is loaded asynchronously, the error will be\n      // thrown once it is loaded.\n\n      function checkHandlerAccessibility(handler) {\n        if (handler && handler.inaccessibleByURL) {\n          throw new UnrecognizedURLError(_url);\n        }\n\n        return handler;\n      }\n\n      for (i = 0, len = results.length; i < len; ++i) {\n        var result = results[i];\n        var name = result.handler;\n        var paramNames = [];\n\n        if (this.router.recognizer.hasRoute(name)) {\n          paramNames = this.router.recognizer.handlersFor(name)[i].names;\n        }\n\n        var newRouteInfo = new UnresolvedRouteInfoByParam(this.router, name, paramNames, result.params);\n        var route = newRouteInfo.route;\n\n        if (route) {\n          checkHandlerAccessibility(route);\n        } else {\n          // If the hanlder is being loaded asynchronously, check if we can\n          // access it after it has resolved\n          newRouteInfo.routePromise = newRouteInfo.routePromise.then(checkHandlerAccessibility);\n        }\n\n        var oldRouteInfo = oldState.routeInfos[i];\n\n        if (statesDiffer || newRouteInfo.shouldSupercede(oldRouteInfo)) {\n          statesDiffer = true;\n          newState.routeInfos[i] = newRouteInfo;\n        } else {\n          newState.routeInfos[i] = oldRouteInfo;\n        }\n      }\n\n      merge(newState.queryParams, results.queryParams);\n      return newState;\n    }\n\n  }\n\n  class Router {\n    constructor(logger) {\n      this._lastQueryParams = {};\n      this.state = undefined;\n      this.oldState = undefined;\n      this.activeTransition = undefined;\n      this.currentRouteInfos = undefined;\n      this._changedQueryParams = undefined;\n      this.currentSequence = 0;\n      this.log = logger;\n      this.recognizer = new _routeRecognizer.default();\n      this.reset();\n    }\n    /**\n      The main entry point into the router. The API is essentially\n      the same as the `map` method in `route-recognizer`.\n         This method extracts the String handler at the last `.to()`\n      call and uses it as the name of the whole route.\n         @param {Function} callback\n    */\n\n\n    map(callback) {\n      this.recognizer.map(callback, function (recognizer, routes) {\n        for (var i = routes.length - 1, proceed = true; i >= 0 && proceed; --i) {\n          var route = routes[i];\n          var handler = route.handler;\n          recognizer.add(routes, {\n            as: handler\n          });\n          proceed = route.path === '/' || route.path === '' || handler.slice(-6) === '.index';\n        }\n      });\n    }\n\n    hasRoute(route) {\n      return this.recognizer.hasRoute(route);\n    }\n\n    queryParamsTransition(changelist, wasTransitioning, oldState, newState) {\n      this.fireQueryParamDidChange(newState, changelist);\n\n      if (!wasTransitioning && this.activeTransition) {\n        // One of the routes in queryParamsDidChange\n        // caused a transition. Just return that transition.\n        return this.activeTransition;\n      } else {\n        // Running queryParamsDidChange didn't change anything.\n        // Just update query params and be on our way.\n        // We have to return a noop transition that will\n        // perform a URL update at the end. This gives\n        // the user the ability to set the url update\n        // method (default is replaceState).\n        var newTransition = new Transition(this, undefined, undefined);\n        newTransition.queryParamsOnly = true;\n        oldState.queryParams = this.finalizeQueryParamChange(newState.routeInfos, newState.queryParams, newTransition);\n        newTransition[QUERY_PARAMS_SYMBOL] = newState.queryParams;\n        this.toReadOnlyInfos(newTransition, newState);\n        this.routeWillChange(newTransition);\n        newTransition.promise = newTransition.promise.then(result => {\n          this._updateURL(newTransition, oldState);\n\n          this.didTransition(this.currentRouteInfos);\n          this.toInfos(newTransition, newState.routeInfos, true);\n          this.routeDidChange(newTransition);\n          return result;\n        }, null, promiseLabel('Transition complete'));\n        return newTransition;\n      }\n    }\n\n    transitionByIntent(intent, isIntermediate) {\n      try {\n        return this.getTransitionByIntent(intent, isIntermediate);\n      } catch (e) {\n        return new Transition(this, intent, undefined, e, undefined);\n      }\n    }\n\n    recognize(url) {\n      var intent = new URLTransitionIntent(this, url);\n      var newState = this.generateNewState(intent);\n\n      if (newState === null) {\n        return newState;\n      }\n\n      var readonlyInfos = toReadOnlyRouteInfo(newState.routeInfos, newState.queryParams);\n      return readonlyInfos[readonlyInfos.length - 1];\n    }\n\n    recognizeAndLoad(url) {\n      var intent = new URLTransitionIntent(this, url);\n      var newState = this.generateNewState(intent);\n\n      if (newState === null) {\n        return _rsvp.Promise.reject(`URL ${url} was not recognized`);\n      }\n\n      var newTransition = new Transition(this, intent, newState, undefined);\n      return newTransition.then(() => {\n        var routeInfosWithAttributes = toReadOnlyRouteInfo(newState.routeInfos, newTransition[QUERY_PARAMS_SYMBOL], true);\n        return routeInfosWithAttributes[routeInfosWithAttributes.length - 1];\n      });\n    }\n\n    generateNewState(intent) {\n      try {\n        return intent.applyToState(this.state, false);\n      } catch (e) {\n        return null;\n      }\n    }\n\n    getTransitionByIntent(intent, isIntermediate) {\n      var wasTransitioning = !!this.activeTransition;\n      var oldState = wasTransitioning ? this.activeTransition[STATE_SYMBOL] : this.state;\n      var newTransition;\n      var newState = intent.applyToState(oldState, isIntermediate);\n      var queryParamChangelist = getChangelist(oldState.queryParams, newState.queryParams);\n\n      if (routeInfosEqual(newState.routeInfos, oldState.routeInfos)) {\n        // This is a no-op transition. See if query params changed.\n        if (queryParamChangelist) {\n          var _newTransition = this.queryParamsTransition(queryParamChangelist, wasTransitioning, oldState, newState);\n\n          _newTransition.queryParamsOnly = true;\n          return _newTransition;\n        } // No-op. No need to create a new transition.\n\n\n        return this.activeTransition || new Transition(this, undefined, undefined);\n      }\n\n      if (isIntermediate) {\n        var transition = new Transition(this, undefined, undefined);\n        this.toReadOnlyInfos(transition, newState);\n        this.setupContexts(newState);\n        this.routeWillChange(transition);\n        return this.activeTransition;\n      } // Create a new transition to the destination route.\n\n\n      newTransition = new Transition(this, intent, newState, undefined, this.activeTransition); // transition is to same route with same params, only query params differ.\n      // not caught above probably because refresh() has been used\n\n      if (routeInfosSameExceptQueryParams(newState.routeInfos, oldState.routeInfos)) {\n        newTransition.queryParamsOnly = true;\n      }\n\n      this.toReadOnlyInfos(newTransition, newState); // Abort and usurp any previously active transition.\n\n      if (this.activeTransition) {\n        this.activeTransition.redirect(newTransition);\n      }\n\n      this.activeTransition = newTransition; // Transition promises by default resolve with resolved state.\n      // For our purposes, swap out the promise to resolve\n      // after the transition has been finalized.\n\n      newTransition.promise = newTransition.promise.then(result => {\n        return this.finalizeTransition(newTransition, result);\n      }, null, promiseLabel('Settle transition promise when transition is finalized'));\n\n      if (!wasTransitioning) {\n        this.notifyExistingHandlers(newState, newTransition);\n      }\n\n      this.fireQueryParamDidChange(newState, queryParamChangelist);\n      return newTransition;\n    }\n    /**\n    @private\n       Begins and returns a Transition based on the provided\n    arguments. Accepts arguments in the form of both URL\n    transitions and named transitions.\n       @param {Router} router\n    @param {Array[Object]} args arguments passed to transitionTo,\n      replaceWith, or handleURL\n    */\n\n\n    doTransition(name, modelsArray = [], isIntermediate = false) {\n      var lastArg = modelsArray[modelsArray.length - 1];\n      var queryParams = {};\n\n      if (lastArg !== undefined && lastArg.hasOwnProperty('queryParams')) {\n        queryParams = modelsArray.pop().queryParams;\n      }\n\n      var intent;\n\n      if (name === undefined) {\n        log(this, 'Updating query params'); // A query param update is really just a transition\n        // into the route you're already on.\n\n        var {\n          routeInfos\n        } = this.state;\n        intent = new NamedTransitionIntent(this, routeInfos[routeInfos.length - 1].name, undefined, [], queryParams);\n      } else if (name.charAt(0) === '/') {\n        log(this, 'Attempting URL transition to ' + name);\n        intent = new URLTransitionIntent(this, name);\n      } else {\n        log(this, 'Attempting transition to ' + name);\n        intent = new NamedTransitionIntent(this, name, undefined, modelsArray, queryParams);\n      }\n\n      return this.transitionByIntent(intent, isIntermediate);\n    }\n    /**\n    @private\n       Updates the URL (if necessary) and calls `setupContexts`\n    to update the router's array of `currentRouteInfos`.\n    */\n\n\n    finalizeTransition(transition, newState) {\n      try {\n        log(transition.router, transition.sequence, 'Resolved all models on destination route; finalizing transition.');\n        var routeInfos = newState.routeInfos; // Run all the necessary enter/setup/exit hooks\n\n        this.setupContexts(newState, transition); // Check if a redirect occurred in enter/setup\n\n        if (transition.isAborted) {\n          // TODO: cleaner way? distinguish b/w targetRouteInfos?\n          this.state.routeInfos = this.currentRouteInfos;\n          return _rsvp.Promise.reject(logAbort(transition));\n        }\n\n        this._updateURL(transition, newState);\n\n        transition.isActive = false;\n        this.activeTransition = undefined;\n        this.triggerEvent(this.currentRouteInfos, true, 'didTransition', []);\n        this.didTransition(this.currentRouteInfos);\n        this.toInfos(transition, newState.routeInfos, true);\n        this.routeDidChange(transition);\n        log(this, transition.sequence, 'TRANSITION COMPLETE.'); // Resolve with the final route.\n\n        return routeInfos[routeInfos.length - 1].route;\n      } catch (e) {\n        if (!(e instanceof TransitionAbortedError)) {\n          var infos = transition[STATE_SYMBOL].routeInfos;\n          transition.trigger(true, 'error', e, transition, infos[infos.length - 1].route);\n          transition.abort();\n        }\n\n        throw e;\n      }\n    }\n    /**\n    @private\n       Takes an Array of `RouteInfo`s, figures out which ones are\n    exiting, entering, or changing contexts, and calls the\n    proper route hooks.\n       For example, consider the following tree of routes. Each route is\n    followed by the URL segment it handles.\n       ```\n    |~index (\"/\")\n    | |~posts (\"/posts\")\n    | | |-showPost (\"/:id\")\n    | | |-newPost (\"/new\")\n    | | |-editPost (\"/edit\")\n    | |~about (\"/about/:id\")\n    ```\n       Consider the following transitions:\n       1. A URL transition to `/posts/1`.\n       1. Triggers the `*model` callbacks on the\n          `index`, `posts`, and `showPost` routes\n       2. Triggers the `enter` callback on the same\n       3. Triggers the `setup` callback on the same\n    2. A direct transition to `newPost`\n       1. Triggers the `exit` callback on `showPost`\n       2. Triggers the `enter` callback on `newPost`\n       3. Triggers the `setup` callback on `newPost`\n    3. A direct transition to `about` with a specified\n       context object\n       1. Triggers the `exit` callback on `newPost`\n          and `posts`\n       2. Triggers the `serialize` callback on `about`\n       3. Triggers the `enter` callback on `about`\n       4. Triggers the `setup` callback on `about`\n       @param {Router} transition\n    @param {TransitionState} newState\n    */\n\n\n    setupContexts(newState, transition) {\n      var partition = this.partitionRoutes(this.state, newState);\n      var i, l, route;\n\n      for (i = 0, l = partition.exited.length; i < l; i++) {\n        route = partition.exited[i].route;\n        delete route.context;\n\n        if (route !== undefined) {\n          if (route._internalReset !== undefined) {\n            route._internalReset(true, transition);\n          }\n\n          if (route.exit !== undefined) {\n            route.exit(transition);\n          }\n        }\n      }\n\n      var oldState = this.oldState = this.state;\n      this.state = newState;\n      var currentRouteInfos = this.currentRouteInfos = partition.unchanged.slice();\n\n      try {\n        for (i = 0, l = partition.reset.length; i < l; i++) {\n          route = partition.reset[i].route;\n\n          if (route !== undefined) {\n            if (route._internalReset !== undefined) {\n              route._internalReset(false, transition);\n            }\n          }\n        }\n\n        for (i = 0, l = partition.updatedContext.length; i < l; i++) {\n          this.routeEnteredOrUpdated(currentRouteInfos, partition.updatedContext[i], false, transition);\n        }\n\n        for (i = 0, l = partition.entered.length; i < l; i++) {\n          this.routeEnteredOrUpdated(currentRouteInfos, partition.entered[i], true, transition);\n        }\n      } catch (e) {\n        this.state = oldState;\n        this.currentRouteInfos = oldState.routeInfos;\n        throw e;\n      }\n\n      this.state.queryParams = this.finalizeQueryParamChange(currentRouteInfos, newState.queryParams, transition);\n    }\n    /**\n    @private\n       Fires queryParamsDidChange event\n    */\n\n\n    fireQueryParamDidChange(newState, queryParamChangelist) {\n      // If queryParams changed trigger event\n      if (queryParamChangelist) {\n        // This is a little hacky but we need some way of storing\n        // changed query params given that no activeTransition\n        // is guaranteed to have occurred.\n        this._changedQueryParams = queryParamChangelist.all;\n        this.triggerEvent(newState.routeInfos, true, 'queryParamsDidChange', [queryParamChangelist.changed, queryParamChangelist.all, queryParamChangelist.removed]);\n        this._changedQueryParams = undefined;\n      }\n    }\n    /**\n    @private\n       Helper method used by setupContexts. Handles errors or redirects\n    that may happen in enter/setup.\n    */\n\n\n    routeEnteredOrUpdated(currentRouteInfos, routeInfo, enter, transition) {\n      var route = routeInfo.route,\n          context = routeInfo.context;\n\n      function _routeEnteredOrUpdated(route) {\n        if (enter) {\n          if (route.enter !== undefined) {\n            route.enter(transition);\n          }\n        }\n\n        if (transition && transition.isAborted) {\n          throw new TransitionAbortedError();\n        }\n\n        route.context = context;\n\n        if (route.contextDidChange !== undefined) {\n          route.contextDidChange();\n        }\n\n        if (route.setup !== undefined) {\n          route.setup(context, transition);\n        }\n\n        if (transition && transition.isAborted) {\n          throw new TransitionAbortedError();\n        }\n\n        currentRouteInfos.push(routeInfo);\n        return route;\n      } // If the route doesn't exist, it means we haven't resolved the route promise yet\n\n\n      if (route === undefined) {\n        routeInfo.routePromise = routeInfo.routePromise.then(_routeEnteredOrUpdated);\n      } else {\n        _routeEnteredOrUpdated(route);\n      }\n\n      return true;\n    }\n    /**\n    @private\n       This function is called when transitioning from one URL to\n    another to determine which routes are no longer active,\n    which routes are newly active, and which routes remain\n    active but have their context changed.\n       Take a list of old routes and new routes and partition\n    them into four buckets:\n       * unchanged: the route was active in both the old and\n      new URL, and its context remains the same\n    * updated context: the route was active in both the\n      old and new URL, but its context changed. The route's\n      `setup` method, if any, will be called with the new\n      context.\n    * exited: the route was active in the old URL, but is\n      no longer active.\n    * entered: the route was not active in the old URL, but\n      is now active.\n       The PartitionedRoutes structure has four fields:\n       * `updatedContext`: a list of `RouteInfo` objects that\n      represent routes that remain active but have a changed\n      context\n    * `entered`: a list of `RouteInfo` objects that represent\n      routes that are newly active\n    * `exited`: a list of `RouteInfo` objects that are no\n      longer active.\n    * `unchanged`: a list of `RouteInfo` objects that remain active.\n       @param {Array[InternalRouteInfo]} oldRoutes a list of the route\n      information for the previous URL (or `[]` if this is the\n      first handled transition)\n    @param {Array[InternalRouteInfo]} newRoutes a list of the route\n      information for the new URL\n       @return {Partition}\n    */\n\n\n    partitionRoutes(oldState, newState) {\n      var oldRouteInfos = oldState.routeInfos;\n      var newRouteInfos = newState.routeInfos;\n      var routes = {\n        updatedContext: [],\n        exited: [],\n        entered: [],\n        unchanged: [],\n        reset: []\n      };\n      var routeChanged,\n          contextChanged = false,\n          i,\n          l;\n\n      for (i = 0, l = newRouteInfos.length; i < l; i++) {\n        var oldRouteInfo = oldRouteInfos[i],\n            newRouteInfo = newRouteInfos[i];\n\n        if (!oldRouteInfo || oldRouteInfo.route !== newRouteInfo.route) {\n          routeChanged = true;\n        }\n\n        if (routeChanged) {\n          routes.entered.push(newRouteInfo);\n\n          if (oldRouteInfo) {\n            routes.exited.unshift(oldRouteInfo);\n          }\n        } else if (contextChanged || oldRouteInfo.context !== newRouteInfo.context) {\n          contextChanged = true;\n          routes.updatedContext.push(newRouteInfo);\n        } else {\n          routes.unchanged.push(oldRouteInfo);\n        }\n      }\n\n      for (i = newRouteInfos.length, l = oldRouteInfos.length; i < l; i++) {\n        routes.exited.unshift(oldRouteInfos[i]);\n      }\n\n      routes.reset = routes.updatedContext.slice();\n      routes.reset.reverse();\n      return routes;\n    }\n\n    _updateURL(transition, state) {\n      var urlMethod = transition.urlMethod;\n\n      if (!urlMethod) {\n        return;\n      }\n\n      var {\n        routeInfos\n      } = state;\n      var {\n        name: routeName\n      } = routeInfos[routeInfos.length - 1];\n      var params = {};\n\n      for (var i = routeInfos.length - 1; i >= 0; --i) {\n        var routeInfo = routeInfos[i];\n        merge(params, routeInfo.params);\n\n        if (routeInfo.route.inaccessibleByURL) {\n          urlMethod = null;\n        }\n      }\n\n      if (urlMethod) {\n        params.queryParams = transition._visibleQueryParams || state.queryParams;\n        var url = this.recognizer.generate(routeName, params); // transitions during the initial transition must always use replaceURL.\n        // When the app boots, you are at a url, e.g. /foo. If some route\n        // redirects to bar as part of the initial transition, you don't want to\n        // add a history entry for /foo. If you do, pressing back will immediately\n        // hit the redirect again and take you back to /bar, thus killing the back\n        // button\n\n        var initial = transition.isCausedByInitialTransition; // say you are at / and you click a link to route /foo. In /foo's\n        // route, the transition is aborted using replacewith('/bar').\n        // Because the current url is still /, the history entry for / is\n        // removed from the history. Clicking back will take you to the page\n        // you were on before /, which is often not even the app, thus killing\n        // the back button. That's why updateURL is always correct for an\n        // aborting transition that's not the initial transition\n\n        var replaceAndNotAborting = urlMethod === 'replace' && !transition.isCausedByAbortingTransition; // because calling refresh causes an aborted transition, this needs to be\n        // special cased - if the initial transition is a replace transition, the\n        // urlMethod should be honored here.\n\n        var isQueryParamsRefreshTransition = transition.queryParamsOnly && urlMethod === 'replace'; // say you are at / and you a `replaceWith(/foo)` is called. Then, that\n        // transition is aborted with `replaceWith(/bar)`. At the end, we should\n        // end up with /bar replacing /. We are replacing the replace. We only\n        // will replace the initial route if all subsequent aborts are also\n        // replaces. However, there is some ambiguity around the correct behavior\n        // here.\n\n        var replacingReplace = urlMethod === 'replace' && transition.isCausedByAbortingReplaceTransition;\n\n        if (initial || replaceAndNotAborting || isQueryParamsRefreshTransition || replacingReplace) {\n          this.replaceURL(url);\n        } else {\n          this.updateURL(url);\n        }\n      }\n    }\n\n    finalizeQueryParamChange(resolvedHandlers, newQueryParams, transition) {\n      // We fire a finalizeQueryParamChange event which\n      // gives the new route hierarchy a chance to tell\n      // us which query params it's consuming and what\n      // their final values are. If a query param is\n      // no longer consumed in the final route hierarchy,\n      // its serialized segment will be removed\n      // from the URL.\n      for (var k in newQueryParams) {\n        if (newQueryParams.hasOwnProperty(k) && newQueryParams[k] === null) {\n          delete newQueryParams[k];\n        }\n      }\n\n      var finalQueryParamsArray = [];\n      this.triggerEvent(resolvedHandlers, true, 'finalizeQueryParamChange', [newQueryParams, finalQueryParamsArray, transition]);\n\n      if (transition) {\n        transition._visibleQueryParams = {};\n      }\n\n      var finalQueryParams = {};\n\n      for (var i = 0, len = finalQueryParamsArray.length; i < len; ++i) {\n        var qp = finalQueryParamsArray[i];\n        finalQueryParams[qp.key] = qp.value;\n\n        if (transition && qp.visible !== false) {\n          transition._visibleQueryParams[qp.key] = qp.value;\n        }\n      }\n\n      return finalQueryParams;\n    }\n\n    toReadOnlyInfos(newTransition, newState) {\n      var oldRouteInfos = this.state.routeInfos;\n      this.fromInfos(newTransition, oldRouteInfos);\n      this.toInfos(newTransition, newState.routeInfos);\n      this._lastQueryParams = newState.queryParams;\n    }\n\n    fromInfos(newTransition, oldRouteInfos) {\n      if (newTransition !== undefined && oldRouteInfos.length > 0) {\n        var fromInfos = toReadOnlyRouteInfo(oldRouteInfos, (0, _polyfills.assign)({}, this._lastQueryParams), true);\n        newTransition.from = fromInfos[fromInfos.length - 1] || null;\n      }\n    }\n\n    toInfos(newTransition, newRouteInfos, includeAttributes = false) {\n      if (newTransition !== undefined && newRouteInfos.length > 0) {\n        var toInfos = toReadOnlyRouteInfo(newRouteInfos, (0, _polyfills.assign)({}, newTransition[QUERY_PARAMS_SYMBOL]), includeAttributes);\n        newTransition.to = toInfos[toInfos.length - 1] || null;\n      }\n    }\n\n    notifyExistingHandlers(newState, newTransition) {\n      var oldRouteInfos = this.state.routeInfos,\n          i,\n          oldRouteInfoLen,\n          oldHandler,\n          newRouteInfo;\n      oldRouteInfoLen = oldRouteInfos.length;\n\n      for (i = 0; i < oldRouteInfoLen; i++) {\n        oldHandler = oldRouteInfos[i];\n        newRouteInfo = newState.routeInfos[i];\n\n        if (!newRouteInfo || oldHandler.name !== newRouteInfo.name) {\n          break;\n        }\n\n        if (!newRouteInfo.isResolved) {}\n      }\n\n      this.triggerEvent(oldRouteInfos, true, 'willTransition', [newTransition]);\n      this.routeWillChange(newTransition);\n      this.willTransition(oldRouteInfos, newState.routeInfos, newTransition);\n    }\n    /**\n      Clears the current and target route routes and triggers exit\n      on each of them starting at the leaf and traversing up through\n      its ancestors.\n    */\n\n\n    reset() {\n      if (this.state) {\n        forEach(this.state.routeInfos.slice().reverse(), function (routeInfo) {\n          var route = routeInfo.route;\n\n          if (route !== undefined) {\n            if (route.exit !== undefined) {\n              route.exit();\n            }\n          }\n\n          return true;\n        });\n      }\n\n      this.oldState = undefined;\n      this.state = new TransitionState();\n      this.currentRouteInfos = undefined;\n    }\n    /**\n      let handler = routeInfo.handler;\n      The entry point for handling a change to the URL (usually\n      via the back and forward button).\n         Returns an Array of handlers and the parameters associated\n      with those parameters.\n         @param {String} url a URL to process\n         @return {Array} an Array of `[handler, parameter]` tuples\n    */\n\n\n    handleURL(url) {\n      // Perform a URL-based transition, but don't change\n      // the URL afterward, since it already happened.\n      if (url.charAt(0) !== '/') {\n        url = '/' + url;\n      }\n\n      return this.doTransition(url).method(null);\n    }\n    /**\n      Transition into the specified named route.\n         If necessary, trigger the exit callback on any routes\n      that are no longer represented by the target route.\n         @param {String} name the name of the route\n    */\n\n\n    transitionTo(name, ...contexts) {\n      if (typeof name === 'object') {\n        contexts.push(name);\n        return this.doTransition(undefined, contexts, false);\n      }\n\n      return this.doTransition(name, contexts);\n    }\n\n    intermediateTransitionTo(name, ...args) {\n      return this.doTransition(name, args, true);\n    }\n\n    refresh(pivotRoute) {\n      var previousTransition = this.activeTransition;\n      var state = previousTransition ? previousTransition[STATE_SYMBOL] : this.state;\n      var routeInfos = state.routeInfos;\n\n      if (pivotRoute === undefined) {\n        pivotRoute = routeInfos[0].route;\n      }\n\n      log(this, 'Starting a refresh transition');\n      var name = routeInfos[routeInfos.length - 1].name;\n      var intent = new NamedTransitionIntent(this, name, pivotRoute, [], this._changedQueryParams || state.queryParams);\n      var newTransition = this.transitionByIntent(intent, false); // if the previous transition is a replace transition, that needs to be preserved\n\n      if (previousTransition && previousTransition.urlMethod === 'replace') {\n        newTransition.method(previousTransition.urlMethod);\n      }\n\n      return newTransition;\n    }\n    /**\n      Identical to `transitionTo` except that the current URL will be replaced\n      if possible.\n         This method is intended primarily for use with `replaceState`.\n         @param {String} name the name of the route\n    */\n\n\n    replaceWith(name) {\n      return this.doTransition(name).method('replace');\n    }\n    /**\n      Take a named route and context objects and generate a\n      URL.\n         @param {String} name the name of the route to generate\n        a URL for\n      @param {...Object} objects a list of objects to serialize\n         @return {String} a URL\n    */\n\n\n    generate(routeName, ...args) {\n      var partitionedArgs = extractQueryParams(args),\n          suppliedParams = partitionedArgs[0],\n          queryParams = partitionedArgs[1]; // Construct a TransitionIntent with the provided params\n      // and apply it to the present state of the router.\n\n      var intent = new NamedTransitionIntent(this, routeName, undefined, suppliedParams);\n      var state = intent.applyToState(this.state, false);\n      var params = {};\n\n      for (var i = 0, len = state.routeInfos.length; i < len; ++i) {\n        var routeInfo = state.routeInfos[i];\n        var routeParams = routeInfo.serialize();\n        merge(params, routeParams);\n      }\n\n      params.queryParams = queryParams;\n      return this.recognizer.generate(routeName, params);\n    }\n\n    applyIntent(routeName, contexts) {\n      var intent = new NamedTransitionIntent(this, routeName, undefined, contexts);\n      var state = this.activeTransition && this.activeTransition[STATE_SYMBOL] || this.state;\n      return intent.applyToState(state, false);\n    }\n\n    isActiveIntent(routeName, contexts, queryParams, _state) {\n      var state = _state || this.state,\n          targetRouteInfos = state.routeInfos,\n          routeInfo,\n          len;\n\n      if (!targetRouteInfos.length) {\n        return false;\n      }\n\n      var targetHandler = targetRouteInfos[targetRouteInfos.length - 1].name;\n      var recogHandlers = this.recognizer.handlersFor(targetHandler);\n      var index = 0;\n\n      for (len = recogHandlers.length; index < len; ++index) {\n        routeInfo = targetRouteInfos[index];\n\n        if (routeInfo.name === routeName) {\n          break;\n        }\n      }\n\n      if (index === recogHandlers.length) {\n        // The provided route name isn't even in the route hierarchy.\n        return false;\n      }\n\n      var testState = new TransitionState();\n      testState.routeInfos = targetRouteInfos.slice(0, index + 1);\n      recogHandlers = recogHandlers.slice(0, index + 1);\n      var intent = new NamedTransitionIntent(this, targetHandler, undefined, contexts);\n      var newState = intent.applyToHandlers(testState, recogHandlers, targetHandler, true, true);\n      var routesEqual = routeInfosEqual(newState.routeInfos, testState.routeInfos);\n\n      if (!queryParams || !routesEqual) {\n        return routesEqual;\n      } // Get a hash of QPs that will still be active on new route\n\n\n      var activeQPsOnNewHandler = {};\n      merge(activeQPsOnNewHandler, queryParams);\n      var activeQueryParams = state.queryParams;\n\n      for (var key in activeQueryParams) {\n        if (activeQueryParams.hasOwnProperty(key) && activeQPsOnNewHandler.hasOwnProperty(key)) {\n          activeQPsOnNewHandler[key] = activeQueryParams[key];\n        }\n      }\n\n      return routesEqual && !getChangelist(activeQPsOnNewHandler, queryParams);\n    }\n\n    isActive(routeName, ...args) {\n      var partitionedArgs = extractQueryParams(args);\n      return this.isActiveIntent(routeName, partitionedArgs[0], partitionedArgs[1]);\n    }\n\n    trigger(name, ...args) {\n      this.triggerEvent(this.currentRouteInfos, false, name, args);\n    }\n\n  }\n\n  function routeInfosEqual(routeInfos, otherRouteInfos) {\n    if (routeInfos.length !== otherRouteInfos.length) {\n      return false;\n    }\n\n    for (var i = 0, len = routeInfos.length; i < len; ++i) {\n      if (routeInfos[i] !== otherRouteInfos[i]) {\n        return false;\n      }\n    }\n\n    return true;\n  }\n\n  function routeInfosSameExceptQueryParams(routeInfos, otherRouteInfos) {\n    if (routeInfos.length !== otherRouteInfos.length) {\n      return false;\n    }\n\n    for (var i = 0, len = routeInfos.length; i < len; ++i) {\n      if (routeInfos[i].name !== otherRouteInfos[i].name) {\n        return false;\n      }\n\n      if (!paramsEqual(routeInfos[i].params, otherRouteInfos[i].params)) {\n        return false;\n      }\n    }\n\n    return true;\n  }\n\n  function paramsEqual(params, otherParams) {\n    if (!params && !otherParams) {\n      return true;\n    } else if (!params && !!otherParams || !!params && !otherParams) {\n      // one is falsy but other is not;\n      return false;\n    }\n\n    var keys = Object.keys(params);\n    var otherKeys = Object.keys(otherParams);\n\n    if (keys.length !== otherKeys.length) {\n      return false;\n    }\n\n    for (var i = 0, len = keys.length; i < len; ++i) {\n      var key = keys[i];\n\n      if (params[key] !== otherParams[key]) {\n        return false;\n      }\n    }\n\n    return true;\n  }\n\n  var _default = Router;\n  _exports.default = _default;\n});","define(\"rsvp\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.asap = asap;\n  _exports.all = all$1;\n  _exports.allSettled = allSettled;\n  _exports.race = race$1;\n  _exports.hash = hash;\n  _exports.hashSettled = hashSettled;\n  _exports.rethrow = rethrow;\n  _exports.defer = defer;\n  _exports.denodeify = denodeify;\n  _exports.configure = configure;\n  _exports.on = on;\n  _exports.off = off;\n  _exports.resolve = resolve$2;\n  _exports.reject = reject$2;\n  _exports.map = map;\n  _exports.filter = filter;\n  _exports.async = _exports.EventTarget = _exports.Promise = _exports.cast = _exports.default = void 0;\n\n  function callbacksFor(object) {\n    var callbacks = object._promiseCallbacks;\n\n    if (!callbacks) {\n      callbacks = object._promiseCallbacks = {};\n    }\n\n    return callbacks;\n  }\n  /**\n    @class EventTarget\n    @for rsvp\n    @public\n  */\n\n\n  var EventTarget = {\n    /**\n      `EventTarget.mixin` extends an object with EventTarget methods. For\n      Example:\n       ```javascript\n      import EventTarget from 'rsvp';\n       let object = {};\n       EventTarget.mixin(object);\n       object.on('finished', function(event) {\n        // handle event\n      });\n       object.trigger('finished', { detail: value });\n      ```\n       `EventTarget.mixin` also works with prototypes:\n       ```javascript\n      import EventTarget from 'rsvp';\n       let Person = function() {};\n      EventTarget.mixin(Person.prototype);\n       let yehuda = new Person();\n      let tom = new Person();\n       yehuda.on('poke', function(event) {\n        console.log('Yehuda says OW');\n      });\n       tom.on('poke', function(event) {\n        console.log('Tom says OW');\n      });\n       yehuda.trigger('poke');\n      tom.trigger('poke');\n      ```\n       @method mixin\n      @for rsvp\n      @private\n      @param {Object} object object to extend with EventTarget methods\n    */\n    mixin(object) {\n      object.on = this.on;\n      object.off = this.off;\n      object.trigger = this.trigger;\n      object._promiseCallbacks = undefined;\n      return object;\n    },\n\n    /**\n      Registers a callback to be executed when `eventName` is triggered\n       ```javascript\n      object.on('event', function(eventInfo){\n        // handle the event\n      });\n       object.trigger('event');\n      ```\n       @method on\n      @for EventTarget\n      @private\n      @param {String} eventName name of the event to listen for\n      @param {Function} callback function to be called when the event is triggered.\n    */\n    on(eventName, callback) {\n      if (typeof callback !== 'function') {\n        throw new TypeError('Callback must be a function');\n      }\n\n      var allCallbacks = callbacksFor(this);\n      var callbacks = allCallbacks[eventName];\n\n      if (!callbacks) {\n        callbacks = allCallbacks[eventName] = [];\n      }\n\n      if (callbacks.indexOf(callback) === -1) {\n        callbacks.push(callback);\n      }\n    },\n\n    /**\n      You can use `off` to stop firing a particular callback for an event:\n       ```javascript\n      function doStuff() { // do stuff! }\n      object.on('stuff', doStuff);\n       object.trigger('stuff'); // doStuff will be called\n       // Unregister ONLY the doStuff callback\n      object.off('stuff', doStuff);\n      object.trigger('stuff'); // doStuff will NOT be called\n      ```\n       If you don't pass a `callback` argument to `off`, ALL callbacks for the\n      event will not be executed when the event fires. For example:\n       ```javascript\n      let callback1 = function(){};\n      let callback2 = function(){};\n       object.on('stuff', callback1);\n      object.on('stuff', callback2);\n       object.trigger('stuff'); // callback1 and callback2 will be executed.\n       object.off('stuff');\n      object.trigger('stuff'); // callback1 and callback2 will not be executed!\n      ```\n       @method off\n      @for rsvp\n      @private\n      @param {String} eventName event to stop listening to\n      @param {Function} [callback] optional argument. If given, only the function\n      given will be removed from the event's callback queue. If no `callback`\n      argument is given, all callbacks will be removed from the event's callback\n      queue.\n    */\n    off(eventName, callback) {\n      var allCallbacks = callbacksFor(this);\n\n      if (!callback) {\n        allCallbacks[eventName] = [];\n        return;\n      }\n\n      var callbacks = allCallbacks[eventName];\n      var index = callbacks.indexOf(callback);\n\n      if (index !== -1) {\n        callbacks.splice(index, 1);\n      }\n    },\n\n    /**\n      Use `trigger` to fire custom events. For example:\n       ```javascript\n      object.on('foo', function(){\n        console.log('foo event happened!');\n      });\n      object.trigger('foo');\n      // 'foo event happened!' logged to the console\n      ```\n       You can also pass a value as a second argument to `trigger` that will be\n      passed as an argument to all event listeners for the event:\n       ```javascript\n      object.on('foo', function(value){\n        console.log(value.name);\n      });\n       object.trigger('foo', { name: 'bar' });\n      // 'bar' logged to the console\n      ```\n       @method trigger\n      @for rsvp\n      @private\n      @param {String} eventName name of the event to be triggered\n      @param {*} [options] optional value to be passed to any event handlers for\n      the given `eventName`\n    */\n    trigger(eventName, options, label) {\n      var allCallbacks = callbacksFor(this);\n      var callbacks = allCallbacks[eventName];\n\n      if (callbacks) {\n        // Don't cache the callbacks.length since it may grow\n        var callback;\n\n        for (var i = 0; i < callbacks.length; i++) {\n          callback = callbacks[i];\n          callback(options, label);\n        }\n      }\n    }\n\n  };\n  _exports.EventTarget = EventTarget;\n  var config = {\n    instrument: false\n  };\n  EventTarget['mixin'](config);\n\n  function configure(name, value) {\n    if (arguments.length === 2) {\n      config[name] = value;\n    } else {\n      return config[name];\n    }\n  }\n\n  var queue = [];\n\n  function scheduleFlush() {\n    setTimeout(() => {\n      for (var i = 0; i < queue.length; i++) {\n        var entry = queue[i];\n        var payload = entry.payload;\n        payload.guid = payload.key + payload.id;\n        payload.childGuid = payload.key + payload.childId;\n\n        if (payload.error) {\n          payload.stack = payload.error.stack;\n        }\n\n        config['trigger'](entry.name, entry.payload);\n      }\n\n      queue.length = 0;\n    }, 50);\n  }\n\n  function instrument(eventName, promise, child) {\n    if (1 === queue.push({\n      name: eventName,\n      payload: {\n        key: promise._guidKey,\n        id: promise._id,\n        eventName: eventName,\n        detail: promise._result,\n        childId: child && child._id,\n        label: promise._label,\n        timeStamp: Date.now(),\n        error: config[\"instrument-with-stack\"] ? new Error(promise._label) : null\n      }\n    })) {\n      scheduleFlush();\n    }\n  }\n  /**\n    `Promise.resolve` returns a promise that will become resolved with the\n    passed `value`. It is shorthand for the following:\n  \n    ```javascript\n    import Promise from 'rsvp';\n  \n    let promise = new Promise(function(resolve, reject){\n      resolve(1);\n    });\n  \n    promise.then(function(value){\n      // value === 1\n    });\n    ```\n  \n    Instead of writing the above, your code now simply becomes the following:\n  \n    ```javascript\n    import Promise from 'rsvp';\n  \n    let promise = RSVP.Promise.resolve(1);\n  \n    promise.then(function(value){\n      // value === 1\n    });\n    ```\n  \n    @method resolve\n    @for Promise\n    @static\n    @param {*} object value that the returned promise will be resolved with\n    @param {String} [label] optional string for identifying the returned promise.\n    Useful for tooling.\n    @return {Promise} a promise that will become fulfilled with the given\n    `value`\n  */\n\n\n  function resolve$$1(object, label) {\n    /*jshint validthis:true */\n    var Constructor = this;\n\n    if (object && typeof object === 'object' && object.constructor === Constructor) {\n      return object;\n    }\n\n    var promise = new Constructor(noop, label);\n    resolve$1(promise, object);\n    return promise;\n  }\n\n  function withOwnPromise() {\n    return new TypeError('A promises callback cannot return that same promise.');\n  }\n\n  function objectOrFunction(x) {\n    var type = typeof x;\n    return x !== null && (type === 'object' || type === 'function');\n  }\n\n  function noop() {}\n\n  var PENDING = void 0;\n  var FULFILLED = 1;\n  var REJECTED = 2;\n\n  function tryThen(then$$1, value, fulfillmentHandler, rejectionHandler) {\n    try {\n      then$$1.call(value, fulfillmentHandler, rejectionHandler);\n    } catch (e) {\n      return e;\n    }\n  }\n\n  function handleForeignThenable(promise, thenable, then$$1) {\n    config.async(promise => {\n      var sealed = false;\n      var error = tryThen(then$$1, thenable, value => {\n        if (sealed) {\n          return;\n        }\n\n        sealed = true;\n\n        if (thenable === value) {\n          fulfill(promise, value);\n        } else {\n          resolve$1(promise, value);\n        }\n      }, reason => {\n        if (sealed) {\n          return;\n        }\n\n        sealed = true;\n        reject(promise, reason);\n      }, 'Settle: ' + (promise._label || ' unknown promise'));\n\n      if (!sealed && error) {\n        sealed = true;\n        reject(promise, error);\n      }\n    }, promise);\n  }\n\n  function handleOwnThenable(promise, thenable) {\n    if (thenable._state === FULFILLED) {\n      fulfill(promise, thenable._result);\n    } else if (thenable._state === REJECTED) {\n      thenable._onError = null;\n      reject(promise, thenable._result);\n    } else {\n      subscribe(thenable, undefined, value => {\n        if (thenable === value) {\n          fulfill(promise, value);\n        } else {\n          resolve$1(promise, value);\n        }\n      }, reason => reject(promise, reason));\n    }\n  }\n\n  function handleMaybeThenable(promise, maybeThenable, then$$1) {\n    var isOwnThenable = maybeThenable.constructor === promise.constructor && then$$1 === then && promise.constructor.resolve === resolve$$1;\n\n    if (isOwnThenable) {\n      handleOwnThenable(promise, maybeThenable);\n    } else if (typeof then$$1 === 'function') {\n      handleForeignThenable(promise, maybeThenable, then$$1);\n    } else {\n      fulfill(promise, maybeThenable);\n    }\n  }\n\n  function resolve$1(promise, value) {\n    if (promise === value) {\n      fulfill(promise, value);\n    } else if (objectOrFunction(value)) {\n      var then$$1;\n\n      try {\n        then$$1 = value.then;\n      } catch (error) {\n        reject(promise, error);\n        return;\n      }\n\n      handleMaybeThenable(promise, value, then$$1);\n    } else {\n      fulfill(promise, value);\n    }\n  }\n\n  function publishRejection(promise) {\n    if (promise._onError) {\n      promise._onError(promise._result);\n    }\n\n    publish(promise);\n  }\n\n  function fulfill(promise, value) {\n    if (promise._state !== PENDING) {\n      return;\n    }\n\n    promise._result = value;\n    promise._state = FULFILLED;\n\n    if (promise._subscribers.length === 0) {\n      if (config.instrument) {\n        instrument('fulfilled', promise);\n      }\n    } else {\n      config.async(publish, promise);\n    }\n  }\n\n  function reject(promise, reason) {\n    if (promise._state !== PENDING) {\n      return;\n    }\n\n    promise._state = REJECTED;\n    promise._result = reason;\n    config.async(publishRejection, promise);\n  }\n\n  function subscribe(parent, child, onFulfillment, onRejection) {\n    var subscribers = parent._subscribers;\n    var length = subscribers.length;\n    parent._onError = null;\n    subscribers[length] = child;\n    subscribers[length + FULFILLED] = onFulfillment;\n    subscribers[length + REJECTED] = onRejection;\n\n    if (length === 0 && parent._state) {\n      config.async(publish, parent);\n    }\n  }\n\n  function publish(promise) {\n    var subscribers = promise._subscribers;\n    var settled = promise._state;\n\n    if (config.instrument) {\n      instrument(settled === FULFILLED ? 'fulfilled' : 'rejected', promise);\n    }\n\n    if (subscribers.length === 0) {\n      return;\n    }\n\n    var child,\n        callback,\n        result = promise._result;\n\n    for (var i = 0; i < subscribers.length; i += 3) {\n      child = subscribers[i];\n      callback = subscribers[i + settled];\n\n      if (child) {\n        invokeCallback(settled, child, callback, result);\n      } else {\n        callback(result);\n      }\n    }\n\n    promise._subscribers.length = 0;\n  }\n\n  function invokeCallback(state, promise, callback, result) {\n    var hasCallback = typeof callback === 'function';\n    var value,\n        succeeded = true,\n        error;\n\n    if (hasCallback) {\n      try {\n        value = callback(result);\n      } catch (e) {\n        succeeded = false;\n        error = e;\n      }\n    } else {\n      value = result;\n    }\n\n    if (promise._state !== PENDING) {// noop\n    } else if (value === promise) {\n      reject(promise, withOwnPromise());\n    } else if (succeeded === false) {\n      reject(promise, error);\n    } else if (hasCallback) {\n      resolve$1(promise, value);\n    } else if (state === FULFILLED) {\n      fulfill(promise, value);\n    } else if (state === REJECTED) {\n      reject(promise, value);\n    }\n  }\n\n  function initializePromise(promise, resolver) {\n    var resolved = false;\n\n    try {\n      resolver(value => {\n        if (resolved) {\n          return;\n        }\n\n        resolved = true;\n        resolve$1(promise, value);\n      }, reason => {\n        if (resolved) {\n          return;\n        }\n\n        resolved = true;\n        reject(promise, reason);\n      });\n    } catch (e) {\n      reject(promise, e);\n    }\n  }\n\n  function then(onFulfillment, onRejection, label) {\n    var parent = this;\n    var state = parent._state;\n\n    if (state === FULFILLED && !onFulfillment || state === REJECTED && !onRejection) {\n      config.instrument && instrument('chained', parent, parent);\n      return parent;\n    }\n\n    parent._onError = null;\n    var child = new parent.constructor(noop, label);\n    var result = parent._result;\n    config.instrument && instrument('chained', parent, child);\n\n    if (state === PENDING) {\n      subscribe(parent, child, onFulfillment, onRejection);\n    } else {\n      var callback = state === FULFILLED ? onFulfillment : onRejection;\n      config.async(() => invokeCallback(state, child, callback, result));\n    }\n\n    return child;\n  }\n\n  class Enumerator {\n    constructor(Constructor, input, abortOnReject, label) {\n      this._instanceConstructor = Constructor;\n      this.promise = new Constructor(noop, label);\n      this._abortOnReject = abortOnReject;\n      this._isUsingOwnPromise = Constructor === Promise;\n      this._isUsingOwnResolve = Constructor.resolve === resolve$$1;\n\n      this._init(...arguments);\n    }\n\n    _init(Constructor, input) {\n      var len = input.length || 0;\n      this.length = len;\n      this._remaining = len;\n      this._result = new Array(len);\n\n      this._enumerate(input);\n    }\n\n    _enumerate(input) {\n      var length = this.length;\n      var promise = this.promise;\n\n      for (var i = 0; promise._state === PENDING && i < length; i++) {\n        this._eachEntry(input[i], i, true);\n      }\n\n      this._checkFullfillment();\n    }\n\n    _checkFullfillment() {\n      if (this._remaining === 0) {\n        var result = this._result;\n        fulfill(this.promise, result);\n        this._result = null;\n      }\n    }\n\n    _settleMaybeThenable(entry, i, firstPass) {\n      var c = this._instanceConstructor;\n\n      if (this._isUsingOwnResolve) {\n        var then$$1,\n            error,\n            succeeded = true;\n\n        try {\n          then$$1 = entry.then;\n        } catch (e) {\n          succeeded = false;\n          error = e;\n        }\n\n        if (then$$1 === then && entry._state !== PENDING) {\n          entry._onError = null;\n\n          this._settledAt(entry._state, i, entry._result, firstPass);\n        } else if (typeof then$$1 !== 'function') {\n          this._settledAt(FULFILLED, i, entry, firstPass);\n        } else if (this._isUsingOwnPromise) {\n          var promise = new c(noop);\n\n          if (succeeded === false) {\n            reject(promise, error);\n          } else {\n            handleMaybeThenable(promise, entry, then$$1);\n\n            this._willSettleAt(promise, i, firstPass);\n          }\n        } else {\n          this._willSettleAt(new c(resolve => resolve(entry)), i, firstPass);\n        }\n      } else {\n        this._willSettleAt(c.resolve(entry), i, firstPass);\n      }\n    }\n\n    _eachEntry(entry, i, firstPass) {\n      if (entry !== null && typeof entry === 'object') {\n        this._settleMaybeThenable(entry, i, firstPass);\n      } else {\n        this._setResultAt(FULFILLED, i, entry, firstPass);\n      }\n    }\n\n    _settledAt(state, i, value, firstPass) {\n      var promise = this.promise;\n\n      if (promise._state === PENDING) {\n        if (this._abortOnReject && state === REJECTED) {\n          reject(promise, value);\n        } else {\n          this._setResultAt(state, i, value, firstPass);\n\n          this._checkFullfillment();\n        }\n      }\n    }\n\n    _setResultAt(state, i, value, firstPass) {\n      this._remaining--;\n      this._result[i] = value;\n    }\n\n    _willSettleAt(promise, i, firstPass) {\n      subscribe(promise, undefined, value => this._settledAt(FULFILLED, i, value, firstPass), reason => this._settledAt(REJECTED, i, reason, firstPass));\n    }\n\n  }\n\n  function setSettledResult(state, i, value) {\n    this._remaining--;\n\n    if (state === FULFILLED) {\n      this._result[i] = {\n        state: 'fulfilled',\n        value: value\n      };\n    } else {\n      this._result[i] = {\n        state: 'rejected',\n        reason: value\n      };\n    }\n  }\n  /**\n    `Promise.all` accepts an array of promises, and returns a new promise which\n    is fulfilled with an array of fulfillment values for the passed promises, or\n    rejected with the reason of the first passed promise to be rejected. It casts all\n    elements of the passed iterable to promises as it runs this algorithm.\n  \n    Example:\n  \n    ```javascript\n    import Promise, { resolve } from 'rsvp';\n  \n    let promise1 = resolve(1);\n    let promise2 = resolve(2);\n    let promise3 = resolve(3);\n    let promises = [ promise1, promise2, promise3 ];\n  \n    Promise.all(promises).then(function(array){\n      // The array here would be [ 1, 2, 3 ];\n    });\n    ```\n  \n    If any of the `promises` given to `RSVP.all` are rejected, the first promise\n    that is rejected will be given as an argument to the returned promises's\n    rejection handler. For example:\n  \n    Example:\n  \n    ```javascript\n    import Promise, { resolve, reject } from 'rsvp';\n  \n    let promise1 = resolve(1);\n    let promise2 = reject(new Error(\"2\"));\n    let promise3 = reject(new Error(\"3\"));\n    let promises = [ promise1, promise2, promise3 ];\n  \n    Promise.all(promises).then(function(array){\n      // Code here never runs because there are rejected promises!\n    }, function(error) {\n      // error.message === \"2\"\n    });\n    ```\n  \n    @method all\n    @for Promise\n    @param {Array} entries array of promises\n    @param {String} [label] optional string for labeling the promise.\n    Useful for tooling.\n    @return {Promise} promise that is fulfilled when all `promises` have been\n    fulfilled, or rejected if any of them become rejected.\n    @static\n  */\n\n\n  function all(entries, label) {\n    if (!Array.isArray(entries)) {\n      return this.reject(new TypeError(\"Promise.all must be called with an array\"), label);\n    }\n\n    return new Enumerator(this, entries, true\n    /* abort on reject */\n    , label).promise;\n  }\n  /**\n    `Promise.race` returns a new promise which is settled in the same way as the\n    first passed promise to settle.\n  \n    Example:\n  \n    ```javascript\n    import Promise from 'rsvp';\n  \n    let promise1 = new Promise(function(resolve, reject){\n      setTimeout(function(){\n        resolve('promise 1');\n      }, 200);\n    });\n  \n    let promise2 = new Promise(function(resolve, reject){\n      setTimeout(function(){\n        resolve('promise 2');\n      }, 100);\n    });\n  \n    Promise.race([promise1, promise2]).then(function(result){\n      // result === 'promise 2' because it was resolved before promise1\n      // was resolved.\n    });\n    ```\n  \n    `Promise.race` is deterministic in that only the state of the first\n    settled promise matters. For example, even if other promises given to the\n    `promises` array argument are resolved, but the first settled promise has\n    become rejected before the other promises became fulfilled, the returned\n    promise will become rejected:\n  \n    ```javascript\n    import Promise from 'rsvp';\n  \n    let promise1 = new Promise(function(resolve, reject){\n      setTimeout(function(){\n        resolve('promise 1');\n      }, 200);\n    });\n  \n    let promise2 = new Promise(function(resolve, reject){\n      setTimeout(function(){\n        reject(new Error('promise 2'));\n      }, 100);\n    });\n  \n    Promise.race([promise1, promise2]).then(function(result){\n      // Code here never runs\n    }, function(reason){\n      // reason.message === 'promise 2' because promise 2 became rejected before\n      // promise 1 became fulfilled\n    });\n    ```\n  \n    An example real-world use case is implementing timeouts:\n  \n    ```javascript\n    import Promise from 'rsvp';\n  \n    Promise.race([ajax('foo.json'), timeout(5000)])\n    ```\n  \n    @method race\n    @for Promise\n    @static\n    @param {Array} entries array of promises to observe\n    @param {String} [label] optional string for describing the promise returned.\n    Useful for tooling.\n    @return {Promise} a promise which settles in the same way as the first passed\n    promise to settle.\n  */\n\n\n  function race(entries, label) {\n    /*jshint validthis:true */\n    var Constructor = this;\n    var promise = new Constructor(noop, label);\n\n    if (!Array.isArray(entries)) {\n      reject(promise, new TypeError('Promise.race must be called with an array'));\n      return promise;\n    }\n\n    for (var i = 0; promise._state === PENDING && i < entries.length; i++) {\n      subscribe(Constructor.resolve(entries[i]), undefined, value => resolve$1(promise, value), reason => reject(promise, reason));\n    }\n\n    return promise;\n  }\n  /**\n    `Promise.reject` returns a promise rejected with the passed `reason`.\n    It is shorthand for the following:\n  \n    ```javascript\n    import Promise from 'rsvp';\n  \n    let promise = new Promise(function(resolve, reject){\n      reject(new Error('WHOOPS'));\n    });\n  \n    promise.then(function(value){\n      // Code here doesn't run because the promise is rejected!\n    }, function(reason){\n      // reason.message === 'WHOOPS'\n    });\n    ```\n  \n    Instead of writing the above, your code now simply becomes the following:\n  \n    ```javascript\n    import Promise from 'rsvp';\n  \n    let promise = Promise.reject(new Error('WHOOPS'));\n  \n    promise.then(function(value){\n      // Code here doesn't run because the promise is rejected!\n    }, function(reason){\n      // reason.message === 'WHOOPS'\n    });\n    ```\n  \n    @method reject\n    @for Promise\n    @static\n    @param {*} reason value that the returned promise will be rejected with.\n    @param {String} [label] optional string for identifying the returned promise.\n    Useful for tooling.\n    @return {Promise} a promise rejected with the given `reason`.\n  */\n\n\n  function reject$1(reason, label) {\n    /*jshint validthis:true */\n    var Constructor = this;\n    var promise = new Constructor(noop, label);\n    reject(promise, reason);\n    return promise;\n  }\n\n  var guidKey = 'rsvp_' + Date.now() + '-';\n  var counter = 0;\n\n  function needsResolver() {\n    throw new TypeError('You must pass a resolver function as the first argument to the promise constructor');\n  }\n\n  function needsNew() {\n    throw new TypeError(\"Failed to construct 'Promise': Please use the 'new' operator, this object constructor cannot be called as a function.\");\n  }\n  /**\n    Promise objects represent the eventual result of an asynchronous operation. The\n    primary way of interacting with a promise is through its `then` method, which\n    registers callbacks to receive either a promise’s eventual value or the reason\n    why the promise cannot be fulfilled.\n  \n    Terminology\n    -----------\n  \n    - `promise` is an object or function with a `then` method whose behavior conforms to this specification.\n    - `thenable` is an object or function that defines a `then` method.\n    - `value` is any legal JavaScript value (including undefined, a thenable, or a promise).\n    - `exception` is a value that is thrown using the throw statement.\n    - `reason` is a value that indicates why a promise was rejected.\n    - `settled` the final resting state of a promise, fulfilled or rejected.\n  \n    A promise can be in one of three states: pending, fulfilled, or rejected.\n  \n    Promises that are fulfilled have a fulfillment value and are in the fulfilled\n    state.  Promises that are rejected have a rejection reason and are in the\n    rejected state.  A fulfillment value is never a thenable.\n  \n    Promises can also be said to *resolve* a value.  If this value is also a\n    promise, then the original promise's settled state will match the value's\n    settled state.  So a promise that *resolves* a promise that rejects will\n    itself reject, and a promise that *resolves* a promise that fulfills will\n    itself fulfill.\n  \n  \n    Basic Usage:\n    ------------\n  \n    ```js\n    let promise = new Promise(function(resolve, reject) {\n      // on success\n      resolve(value);\n  \n      // on failure\n      reject(reason);\n    });\n  \n    promise.then(function(value) {\n      // on fulfillment\n    }, function(reason) {\n      // on rejection\n    });\n    ```\n  \n    Advanced Usage:\n    ---------------\n  \n    Promises shine when abstracting away asynchronous interactions such as\n    `XMLHttpRequest`s.\n  \n    ```js\n    function getJSON(url) {\n      return new Promise(function(resolve, reject){\n        let xhr = new XMLHttpRequest();\n  \n        xhr.open('GET', url);\n        xhr.onreadystatechange = handler;\n        xhr.responseType = 'json';\n        xhr.setRequestHeader('Accept', 'application/json');\n        xhr.send();\n  \n        function handler() {\n          if (this.readyState === this.DONE) {\n            if (this.status === 200) {\n              resolve(this.response);\n            } else {\n              reject(new Error('getJSON: `' + url + '` failed with status: [' + this.status + ']'));\n            }\n          }\n        };\n      });\n    }\n  \n    getJSON('/posts.json').then(function(json) {\n      // on fulfillment\n    }, function(reason) {\n      // on rejection\n    });\n    ```\n  \n    Unlike callbacks, promises are great composable primitives.\n  \n    ```js\n    Promise.all([\n      getJSON('/posts'),\n      getJSON('/comments')\n    ]).then(function(values){\n      values[0] // => postsJSON\n      values[1] // => commentsJSON\n  \n      return values;\n    });\n    ```\n  \n    @class Promise\n    @public\n    @param {function} resolver\n    @param {String} [label] optional string for labeling the promise.\n    Useful for tooling.\n    @constructor\n  */\n\n\n  class Promise {\n    constructor(resolver, label) {\n      this._id = counter++;\n      this._label = label;\n      this._state = undefined;\n      this._result = undefined;\n      this._subscribers = [];\n      config.instrument && instrument('created', this);\n\n      if (noop !== resolver) {\n        typeof resolver !== 'function' && needsResolver();\n        this instanceof Promise ? initializePromise(this, resolver) : needsNew();\n      }\n    }\n\n    _onError(reason) {\n      config.after(() => {\n        if (this._onError) {\n          config.trigger('error', reason, this._label);\n        }\n      });\n    }\n    /**\n      `catch` is simply sugar for `then(undefined, onRejection)` which makes it the same\n      as the catch block of a try/catch statement.\n    \n      ```js\n      function findAuthor(){\n        throw new Error('couldn\\'t find that author');\n      }\n    \n      // synchronous\n      try {\n        findAuthor();\n      } catch(reason) {\n        // something went wrong\n      }\n    \n      // async with promises\n      findAuthor().catch(function(reason){\n        // something went wrong\n      });\n      ```\n    \n      @method catch\n      @param {Function} onRejection\n      @param {String} [label] optional string for labeling the promise.\n      Useful for tooling.\n      @return {Promise}\n    */\n\n\n    catch(onRejection, label) {\n      return this.then(undefined, onRejection, label);\n    }\n    /**\n      `finally` will be invoked regardless of the promise's fate just as native\n      try/catch/finally behaves\n    \n      Synchronous example:\n    \n      ```js\n      findAuthor() {\n        if (Math.random() > 0.5) {\n          throw new Error();\n        }\n        return new Author();\n      }\n    \n      try {\n        return findAuthor(); // succeed or fail\n      } catch(error) {\n        return findOtherAuthor();\n      } finally {\n        // always runs\n        // doesn't affect the return value\n      }\n      ```\n    \n      Asynchronous example:\n    \n      ```js\n      findAuthor().catch(function(reason){\n        return findOtherAuthor();\n      }).finally(function(){\n        // author was either found, or not\n      });\n      ```\n    \n      @method finally\n      @param {Function} callback\n      @param {String} [label] optional string for labeling the promise.\n      Useful for tooling.\n      @return {Promise}\n    */\n\n\n    finally(callback, label) {\n      var promise = this;\n      var constructor = promise.constructor;\n\n      if (typeof callback === 'function') {\n        return promise.then(value => constructor.resolve(callback()).then(() => value), reason => constructor.resolve(callback()).then(() => {\n          throw reason;\n        }));\n      }\n\n      return promise.then(callback, callback);\n    }\n\n  }\n\n  _exports.Promise = Promise;\n  Promise.cast = resolve$$1; // deprecated\n\n  Promise.all = all;\n  Promise.race = race;\n  Promise.resolve = resolve$$1;\n  Promise.reject = reject$1;\n  Promise.prototype._guidKey = guidKey;\n  /**\n    The primary way of interacting with a promise is through its `then` method,\n    which registers callbacks to receive either a promise's eventual value or the\n    reason why the promise cannot be fulfilled.\n  \n    ```js\n    findUser().then(function(user){\n      // user is available\n    }, function(reason){\n      // user is unavailable, and you are given the reason why\n    });\n    ```\n  \n    Chaining\n    --------\n  \n    The return value of `then` is itself a promise.  This second, 'downstream'\n    promise is resolved with the return value of the first promise's fulfillment\n    or rejection handler, or rejected if the handler throws an exception.\n  \n    ```js\n    findUser().then(function (user) {\n      return user.name;\n    }, function (reason) {\n      return 'default name';\n    }).then(function (userName) {\n      // If `findUser` fulfilled, `userName` will be the user's name, otherwise it\n      // will be `'default name'`\n    });\n  \n    findUser().then(function (user) {\n      throw new Error('Found user, but still unhappy');\n    }, function (reason) {\n      throw new Error('`findUser` rejected and we\\'re unhappy');\n    }).then(function (value) {\n      // never reached\n    }, function (reason) {\n      // if `findUser` fulfilled, `reason` will be 'Found user, but still unhappy'.\n      // If `findUser` rejected, `reason` will be '`findUser` rejected and we\\'re unhappy'.\n    });\n    ```\n    If the downstream promise does not specify a rejection handler, rejection reasons will be propagated further downstream.\n  \n    ```js\n    findUser().then(function (user) {\n      throw new PedagogicalException('Upstream error');\n    }).then(function (value) {\n      // never reached\n    }).then(function (value) {\n      // never reached\n    }, function (reason) {\n      // The `PedgagocialException` is propagated all the way down to here\n    });\n    ```\n  \n    Assimilation\n    ------------\n  \n    Sometimes the value you want to propagate to a downstream promise can only be\n    retrieved asynchronously. This can be achieved by returning a promise in the\n    fulfillment or rejection handler. The downstream promise will then be pending\n    until the returned promise is settled. This is called *assimilation*.\n  \n    ```js\n    findUser().then(function (user) {\n      return findCommentsByAuthor(user);\n    }).then(function (comments) {\n      // The user's comments are now available\n    });\n    ```\n  \n    If the assimliated promise rejects, then the downstream promise will also reject.\n  \n    ```js\n    findUser().then(function (user) {\n      return findCommentsByAuthor(user);\n    }).then(function (comments) {\n      // If `findCommentsByAuthor` fulfills, we'll have the value here\n    }, function (reason) {\n      // If `findCommentsByAuthor` rejects, we'll have the reason here\n    });\n    ```\n  \n    Simple Example\n    --------------\n  \n    Synchronous Example\n  \n    ```javascript\n    let result;\n  \n    try {\n      result = findResult();\n      // success\n    } catch(reason) {\n      // failure\n    }\n    ```\n  \n    Errback Example\n  \n    ```js\n    findResult(function(result, err){\n      if (err) {\n        // failure\n      } else {\n        // success\n      }\n    });\n    ```\n  \n    Promise Example;\n  \n    ```javascript\n    findResult().then(function(result){\n      // success\n    }, function(reason){\n      // failure\n    });\n    ```\n  \n    Advanced Example\n    --------------\n  \n    Synchronous Example\n  \n    ```javascript\n    let author, books;\n  \n    try {\n      author = findAuthor();\n      books  = findBooksByAuthor(author);\n      // success\n    } catch(reason) {\n      // failure\n    }\n    ```\n  \n    Errback Example\n  \n    ```js\n  \n    function foundBooks(books) {\n  \n    }\n  \n    function failure(reason) {\n  \n    }\n  \n    findAuthor(function(author, err){\n      if (err) {\n        failure(err);\n        // failure\n      } else {\n        try {\n          findBoooksByAuthor(author, function(books, err) {\n            if (err) {\n              failure(err);\n            } else {\n              try {\n                foundBooks(books);\n              } catch(reason) {\n                failure(reason);\n              }\n            }\n          });\n        } catch(error) {\n          failure(err);\n        }\n        // success\n      }\n    });\n    ```\n  \n    Promise Example;\n  \n    ```javascript\n    findAuthor().\n      then(findBooksByAuthor).\n      then(function(books){\n        // found books\n    }).catch(function(reason){\n      // something went wrong\n    });\n    ```\n  \n    @method then\n    @param {Function} onFulfillment\n    @param {Function} onRejection\n    @param {String} [label] optional string for labeling the promise.\n    Useful for tooling.\n    @return {Promise}\n  */\n\n  Promise.prototype.then = then;\n\n  function makeObject(_, argumentNames) {\n    var obj = {};\n    var length = _.length;\n    var args = new Array(length);\n\n    for (var x = 0; x < length; x++) {\n      args[x] = _[x];\n    }\n\n    for (var i = 0; i < argumentNames.length; i++) {\n      var name = argumentNames[i];\n      obj[name] = args[i + 1];\n    }\n\n    return obj;\n  }\n\n  function arrayResult(_) {\n    var length = _.length;\n    var args = new Array(length - 1);\n\n    for (var i = 1; i < length; i++) {\n      args[i - 1] = _[i];\n    }\n\n    return args;\n  }\n\n  function wrapThenable(then, promise) {\n    return {\n      then(onFulFillment, onRejection) {\n        return then.call(promise, onFulFillment, onRejection);\n      }\n\n    };\n  }\n  /**\n    `denodeify` takes a 'node-style' function and returns a function that\n    will return an `Promise`. You can use `denodeify` in Node.js or the\n    browser when you'd prefer to use promises over using callbacks. For example,\n    `denodeify` transforms the following:\n  \n    ```javascript\n    let fs = require('fs');\n  \n    fs.readFile('myfile.txt', function(err, data){\n      if (err) return handleError(err);\n      handleData(data);\n    });\n    ```\n  \n    into:\n  \n    ```javascript\n    let fs = require('fs');\n    let readFile = denodeify(fs.readFile);\n  \n    readFile('myfile.txt').then(handleData, handleError);\n    ```\n  \n    If the node function has multiple success parameters, then `denodeify`\n    just returns the first one:\n  \n    ```javascript\n    let request = denodeify(require('request'));\n  \n    request('http://example.com').then(function(res) {\n      // ...\n    });\n    ```\n  \n    However, if you need all success parameters, setting `denodeify`'s\n    second parameter to `true` causes it to return all success parameters\n    as an array:\n  \n    ```javascript\n    let request = denodeify(require('request'), true);\n  \n    request('http://example.com').then(function(result) {\n      // result[0] -> res\n      // result[1] -> body\n    });\n    ```\n  \n    Or if you pass it an array with names it returns the parameters as a hash:\n  \n    ```javascript\n    let request = denodeify(require('request'), ['res', 'body']);\n  \n    request('http://example.com').then(function(result) {\n      // result.res\n      // result.body\n    });\n    ```\n  \n    Sometimes you need to retain the `this`:\n  \n    ```javascript\n    let app = require('express')();\n    let render = denodeify(app.render.bind(app));\n    ```\n  \n    The denodified function inherits from the original function. It works in all\n    environments, except IE 10 and below. Consequently all properties of the original\n    function are available to you. However, any properties you change on the\n    denodeified function won't be changed on the original function. Example:\n  \n    ```javascript\n    let request = denodeify(require('request')),\n        cookieJar = request.jar(); // <- Inheritance is used here\n  \n    request('http://example.com', {jar: cookieJar}).then(function(res) {\n      // cookieJar.cookies holds now the cookies returned by example.com\n    });\n    ```\n  \n    Using `denodeify` makes it easier to compose asynchronous operations instead\n    of using callbacks. For example, instead of:\n  \n    ```javascript\n    let fs = require('fs');\n  \n    fs.readFile('myfile.txt', function(err, data){\n      if (err) { ... } // Handle error\n      fs.writeFile('myfile2.txt', data, function(err){\n        if (err) { ... } // Handle error\n        console.log('done')\n      });\n    });\n    ```\n  \n    you can chain the operations together using `then` from the returned promise:\n  \n    ```javascript\n    let fs = require('fs');\n    let readFile = denodeify(fs.readFile);\n    let writeFile = denodeify(fs.writeFile);\n  \n    readFile('myfile.txt').then(function(data){\n      return writeFile('myfile2.txt', data);\n    }).then(function(){\n      console.log('done')\n    }).catch(function(error){\n      // Handle error\n    });\n    ```\n  \n    @method denodeify\n    @public\n    @static\n    @for rsvp\n    @param {Function} nodeFunc a 'node-style' function that takes a callback as\n    its last argument. The callback expects an error to be passed as its first\n    argument (if an error occurred, otherwise null), and the value from the\n    operation as its second argument ('function(err, value){ }').\n    @param {Boolean|Array} [options] An optional paramter that if set\n    to `true` causes the promise to fulfill with the callback's success arguments\n    as an array. This is useful if the node function has multiple success\n    paramters. If you set this paramter to an array with names, the promise will\n    fulfill with a hash with these names as keys and the success parameters as\n    values.\n    @return {Function} a function that wraps `nodeFunc` to return a `Promise`\n  */\n\n\n  function denodeify(nodeFunc, options) {\n    var fn = function () {\n      var l = arguments.length;\n      var args = new Array(l + 1);\n      var promiseInput = false;\n\n      for (var i = 0; i < l; ++i) {\n        var arg = arguments[i]; // TODO: this code really needs to be cleaned up\n\n        if (!promiseInput) {\n          if (arg !== null && typeof arg === 'object') {\n            if (arg.constructor === Promise) {\n              promiseInput = true;\n            } else {\n              try {\n                promiseInput = arg.then;\n              } catch (error) {\n                var p = new Promise(noop);\n                reject(p, error);\n                return p;\n              }\n            }\n          } else {\n            promiseInput = false;\n          }\n\n          if (promiseInput && promiseInput !== true) {\n            arg = wrapThenable(promiseInput, arg);\n          }\n        }\n\n        args[i] = arg;\n      }\n\n      var promise = new Promise(noop);\n\n      args[l] = function (err, val) {\n        if (err) {\n          reject(promise, err);\n        } else if (options === undefined) {\n          resolve$1(promise, val);\n        } else if (options === true) {\n          resolve$1(promise, arrayResult(arguments));\n        } else if (Array.isArray(options)) {\n          resolve$1(promise, makeObject(arguments, options));\n        } else {\n          resolve$1(promise, val);\n        }\n      };\n\n      if (promiseInput) {\n        return handlePromiseInput(promise, args, nodeFunc, this);\n      } else {\n        return handleValueInput(promise, args, nodeFunc, this);\n      }\n    };\n\n    fn.__proto__ = nodeFunc;\n    return fn;\n  }\n\n  function handleValueInput(promise, args, nodeFunc, self) {\n    try {\n      nodeFunc.apply(self, args);\n    } catch (error) {\n      reject(promise, error);\n    }\n\n    return promise;\n  }\n\n  function handlePromiseInput(promise, args, nodeFunc, self) {\n    return Promise.all(args).then(args => handleValueInput(promise, args, nodeFunc, self));\n  }\n  /**\n    This is a convenient alias for `Promise.all`.\n  \n    @method all\n    @public\n    @static\n    @for rsvp\n    @param {Array} array Array of promises.\n    @param {String} [label] An optional label. This is useful\n    for tooling.\n  */\n\n\n  function all$1(array, label) {\n    return Promise.all(array, label);\n  }\n  /**\n  @module rsvp\n  @public\n  **/\n\n\n  class AllSettled extends Enumerator {\n    constructor(Constructor, entries, label) {\n      super(Constructor, entries, false\n      /* don't abort on reject */\n      , label);\n    }\n\n  }\n\n  AllSettled.prototype._setResultAt = setSettledResult;\n  /**\n  `RSVP.allSettled` is similar to `RSVP.all`, but instead of implementing\n  a fail-fast method, it waits until all the promises have returned and\n  shows you all the results. This is useful if you want to handle multiple\n  promises' failure states together as a set.\n   Returns a promise that is fulfilled when all the given promises have been\n  settled. The return promise is fulfilled with an array of the states of\n  the promises passed into the `promises` array argument.\n   Each state object will either indicate fulfillment or rejection, and\n  provide the corresponding value or reason. The states will take one of\n  the following formats:\n   ```javascript\n  { state: 'fulfilled', value: value }\n    or\n  { state: 'rejected', reason: reason }\n  ```\n   Example:\n   ```javascript\n  let promise1 = RSVP.Promise.resolve(1);\n  let promise2 = RSVP.Promise.reject(new Error('2'));\n  let promise3 = RSVP.Promise.reject(new Error('3'));\n  let promises = [ promise1, promise2, promise3 ];\n   RSVP.allSettled(promises).then(function(array){\n    // array == [\n    //   { state: 'fulfilled', value: 1 },\n    //   { state: 'rejected', reason: Error },\n    //   { state: 'rejected', reason: Error }\n    // ]\n    // Note that for the second item, reason.message will be '2', and for the\n    // third item, reason.message will be '3'.\n  }, function(error) {\n    // Not run. (This block would only be called if allSettled had failed,\n    // for instance if passed an incorrect argument type.)\n  });\n  ```\n   @method allSettled\n  @public\n  @static\n  @for rsvp\n  @param {Array} entries\n  @param {String} [label] - optional string that describes the promise.\n  Useful for tooling.\n  @return {Promise} promise that is fulfilled with an array of the settled\n  states of the constituent promises.\n  */\n\n  function allSettled(entries, label) {\n    if (!Array.isArray(entries)) {\n      return Promise.reject(new TypeError(\"Promise.allSettled must be called with an array\"), label);\n    }\n\n    return new AllSettled(Promise, entries, label).promise;\n  }\n  /**\n    This is a convenient alias for `Promise.race`.\n  \n    @method race\n    @public\n    @static\n    @for rsvp\n    @param {Array} array Array of promises.\n    @param {String} [label] An optional label. This is useful\n    for tooling.\n   */\n\n\n  function race$1(array, label) {\n    return Promise.race(array, label);\n  }\n\n  class PromiseHash extends Enumerator {\n    constructor(Constructor, object, abortOnReject = true, label) {\n      super(Constructor, object, abortOnReject, label);\n    }\n\n    _init(Constructor, object) {\n      this._result = {};\n\n      this._enumerate(object);\n    }\n\n    _enumerate(input) {\n      var keys = Object.keys(input);\n      var length = keys.length;\n      var promise = this.promise;\n      this._remaining = length;\n      var key, val;\n\n      for (var i = 0; promise._state === PENDING && i < length; i++) {\n        key = keys[i];\n        val = input[key];\n\n        this._eachEntry(val, key, true);\n      }\n\n      this._checkFullfillment();\n    }\n\n  }\n  /**\n    `hash` is similar to `all`, but takes an object instead of an array\n    for its `promises` argument.\n  \n    Returns a promise that is fulfilled when all the given promises have been\n    fulfilled, or rejected if any of them become rejected. The returned promise\n    is fulfilled with a hash that has the same key names as the `promises` object\n    argument. If any of the values in the object are not promises, they will\n    simply be copied over to the fulfilled object.\n  \n    Example:\n  \n    ```javascript\n    let promises = {\n      myPromise: resolve(1),\n      yourPromise: resolve(2),\n      theirPromise: resolve(3),\n      notAPromise: 4\n    };\n  \n    hash(promises).then(function(hash){\n      // hash here is an object that looks like:\n      // {\n      //   myPromise: 1,\n      //   yourPromise: 2,\n      //   theirPromise: 3,\n      //   notAPromise: 4\n      // }\n    });\n    ```\n  \n    If any of the `promises` given to `hash` are rejected, the first promise\n    that is rejected will be given as the reason to the rejection handler.\n  \n    Example:\n  \n    ```javascript\n    let promises = {\n      myPromise: resolve(1),\n      rejectedPromise: reject(new Error('rejectedPromise')),\n      anotherRejectedPromise: reject(new Error('anotherRejectedPromise')),\n    };\n  \n    hash(promises).then(function(hash){\n      // Code here never runs because there are rejected promises!\n    }, function(reason) {\n      // reason.message === 'rejectedPromise'\n    });\n    ```\n  \n    An important note: `hash` is intended for plain JavaScript objects that\n    are just a set of keys and values. `hash` will NOT preserve prototype\n    chains.\n  \n    Example:\n  \n    ```javascript\n    import { hash, resolve } from 'rsvp';\n    function MyConstructor(){\n      this.example = resolve('Example');\n    }\n  \n    MyConstructor.prototype = {\n      protoProperty: resolve('Proto Property')\n    };\n  \n    let myObject = new MyConstructor();\n  \n    hash(myObject).then(function(hash){\n      // protoProperty will not be present, instead you will just have an\n      // object that looks like:\n      // {\n      //   example: 'Example'\n      // }\n      //\n      // hash.hasOwnProperty('protoProperty'); // false\n      // 'undefined' === typeof hash.protoProperty\n    });\n    ```\n  \n    @method hash\n    @public\n    @static\n    @for rsvp\n    @param {Object} object\n    @param {String} [label] optional string that describes the promise.\n    Useful for tooling.\n    @return {Promise} promise that is fulfilled when all properties of `promises`\n    have been fulfilled, or rejected if any of them become rejected.\n  */\n\n\n  function hash(object, label) {\n    return Promise.resolve(object, label).then(function (object) {\n      if (object === null || typeof object !== 'object') {\n        throw new TypeError(\"Promise.hash must be called with an object\");\n      }\n\n      return new PromiseHash(Promise, object, label).promise;\n    });\n  }\n\n  class HashSettled extends PromiseHash {\n    constructor(Constructor, object, label) {\n      super(Constructor, object, false, label);\n    }\n\n  }\n\n  HashSettled.prototype._setResultAt = setSettledResult;\n  /**\n    `hashSettled` is similar to `allSettled`, but takes an object\n    instead of an array for its `promises` argument.\n  \n    Unlike `all` or `hash`, which implement a fail-fast method,\n    but like `allSettled`, `hashSettled` waits until all the\n    constituent promises have returned and then shows you all the results\n    with their states and values/reasons. This is useful if you want to\n    handle multiple promises' failure states together as a set.\n  \n    Returns a promise that is fulfilled when all the given promises have been\n    settled, or rejected if the passed parameters are invalid.\n  \n    The returned promise is fulfilled with a hash that has the same key names as\n    the `promises` object argument. If any of the values in the object are not\n    promises, they will be copied over to the fulfilled object and marked with state\n    'fulfilled'.\n  \n    Example:\n  \n    ```javascript\n    import { hashSettled, resolve } from 'rsvp';\n  \n    let promises = {\n      myPromise: resolve(1),\n      yourPromise: resolve(2),\n      theirPromise: resolve(3),\n      notAPromise: 4\n    };\n  \n    hashSettled(promises).then(function(hash){\n      // hash here is an object that looks like:\n      // {\n      //   myPromise: { state: 'fulfilled', value: 1 },\n      //   yourPromise: { state: 'fulfilled', value: 2 },\n      //   theirPromise: { state: 'fulfilled', value: 3 },\n      //   notAPromise: { state: 'fulfilled', value: 4 }\n      // }\n    });\n    ```\n  \n    If any of the `promises` given to `hash` are rejected, the state will\n    be set to 'rejected' and the reason for rejection provided.\n  \n    Example:\n  \n    ```javascript\n    import { hashSettled, reject, resolve } from 'rsvp';\n  \n    let promises = {\n      myPromise: resolve(1),\n      rejectedPromise: reject(new Error('rejection')),\n      anotherRejectedPromise: reject(new Error('more rejection')),\n    };\n  \n    hashSettled(promises).then(function(hash){\n      // hash here is an object that looks like:\n      // {\n      //   myPromise:              { state: 'fulfilled', value: 1 },\n      //   rejectedPromise:        { state: 'rejected', reason: Error },\n      //   anotherRejectedPromise: { state: 'rejected', reason: Error },\n      // }\n      // Note that for rejectedPromise, reason.message == 'rejection',\n      // and for anotherRejectedPromise, reason.message == 'more rejection'.\n    });\n    ```\n  \n    An important note: `hashSettled` is intended for plain JavaScript objects that\n    are just a set of keys and values. `hashSettled` will NOT preserve prototype\n    chains.\n  \n    Example:\n  \n    ```javascript\n    import Promise, { hashSettled, resolve } from 'rsvp';\n  \n    function MyConstructor(){\n      this.example = resolve('Example');\n    }\n  \n    MyConstructor.prototype = {\n      protoProperty: Promise.resolve('Proto Property')\n    };\n  \n    let myObject = new MyConstructor();\n  \n    hashSettled(myObject).then(function(hash){\n      // protoProperty will not be present, instead you will just have an\n      // object that looks like:\n      // {\n      //   example: { state: 'fulfilled', value: 'Example' }\n      // }\n      //\n      // hash.hasOwnProperty('protoProperty'); // false\n      // 'undefined' === typeof hash.protoProperty\n    });\n    ```\n  \n    @method hashSettled\n    @public\n    @for rsvp\n    @param {Object} object\n    @param {String} [label] optional string that describes the promise.\n    Useful for tooling.\n    @return {Promise} promise that is fulfilled when when all properties of `promises`\n    have been settled.\n    @static\n  */\n\n  function hashSettled(object, label) {\n    return Promise.resolve(object, label).then(function (object) {\n      if (object === null || typeof object !== 'object') {\n        throw new TypeError(\"hashSettled must be called with an object\");\n      }\n\n      return new HashSettled(Promise, object, false, label).promise;\n    });\n  }\n  /**\n    `rethrow` will rethrow an error on the next turn of the JavaScript event\n    loop in order to aid debugging.\n  \n    Promises A+ specifies that any exceptions that occur with a promise must be\n    caught by the promises implementation and bubbled to the last handler. For\n    this reason, it is recommended that you always specify a second rejection\n    handler function to `then`. However, `rethrow` will throw the exception\n    outside of the promise, so it bubbles up to your console if in the browser,\n    or domain/cause uncaught exception in Node. `rethrow` will also throw the\n    error again so the error can be handled by the promise per the spec.\n  \n    ```javascript\n    import { rethrow } from 'rsvp';\n  \n    function throws(){\n      throw new Error('Whoops!');\n    }\n  \n    let promise = new Promise(function(resolve, reject){\n      throws();\n    });\n  \n    promise.catch(rethrow).then(function(){\n      // Code here doesn't run because the promise became rejected due to an\n      // error!\n    }, function (err){\n      // handle the error here\n    });\n    ```\n  \n    The 'Whoops' error will be thrown on the next turn of the event loop\n    and you can watch for it in your console. You can also handle it using a\n    rejection handler given to `.then` or `.catch` on the returned promise.\n  \n    @method rethrow\n    @public\n    @static\n    @for rsvp\n    @param {Error} reason reason the promise became rejected.\n    @throws Error\n    @static\n  */\n\n\n  function rethrow(reason) {\n    setTimeout(() => {\n      throw reason;\n    });\n    throw reason;\n  }\n  /**\n    `defer` returns an object similar to jQuery's `$.Deferred`.\n    `defer` should be used when porting over code reliant on `$.Deferred`'s\n    interface. New code should use the `Promise` constructor instead.\n  \n    The object returned from `defer` is a plain object with three properties:\n  \n    * promise - an `Promise`.\n    * reject - a function that causes the `promise` property on this object to\n      become rejected\n    * resolve - a function that causes the `promise` property on this object to\n      become fulfilled.\n  \n    Example:\n  \n     ```javascript\n     let deferred = defer();\n  \n     deferred.resolve(\"Success!\");\n  \n     deferred.promise.then(function(value){\n       // value here is \"Success!\"\n     });\n     ```\n  \n    @method defer\n    @public\n    @static\n    @for rsvp\n    @param {String} [label] optional string for labeling the promise.\n    Useful for tooling.\n    @return {Object}\n   */\n\n\n  function defer(label) {\n    var deferred = {\n      resolve: undefined,\n      reject: undefined\n    };\n    deferred.promise = new Promise((resolve, reject) => {\n      deferred.resolve = resolve;\n      deferred.reject = reject;\n    }, label);\n    return deferred;\n  }\n\n  class MapEnumerator extends Enumerator {\n    constructor(Constructor, entries, mapFn, label) {\n      super(Constructor, entries, true, label, mapFn);\n    }\n\n    _init(Constructor, input, bool, label, mapFn) {\n      var len = input.length || 0;\n      this.length = len;\n      this._remaining = len;\n      this._result = new Array(len);\n      this._mapFn = mapFn;\n\n      this._enumerate(input);\n    }\n\n    _setResultAt(state, i, value, firstPass) {\n      if (firstPass) {\n        try {\n          this._eachEntry(this._mapFn(value, i), i, false);\n        } catch (error) {\n          this._settledAt(REJECTED, i, error, false);\n        }\n      } else {\n        this._remaining--;\n        this._result[i] = value;\n      }\n    }\n\n  }\n  /**\n   `map` is similar to JavaScript's native `map` method. `mapFn` is eagerly called\n    meaning that as soon as any promise resolves its value will be passed to `mapFn`.\n    `map` returns a promise that will become fulfilled with the result of running\n    `mapFn` on the values the promises become fulfilled with.\n  \n    For example:\n  \n    ```javascript\n    import { map, resolve } from 'rsvp';\n  \n    let promise1 = resolve(1);\n    let promise2 = resolve(2);\n    let promise3 = resolve(3);\n    let promises = [ promise1, promise2, promise3 ];\n  \n    let mapFn = function(item){\n      return item + 1;\n    };\n  \n    map(promises, mapFn).then(function(result){\n      // result is [ 2, 3, 4 ]\n    });\n    ```\n  \n    If any of the `promises` given to `map` are rejected, the first promise\n    that is rejected will be given as an argument to the returned promise's\n    rejection handler. For example:\n  \n    ```javascript\n    import { map, reject, resolve } from 'rsvp';\n  \n    let promise1 = resolve(1);\n    let promise2 = reject(new Error('2'));\n    let promise3 = reject(new Error('3'));\n    let promises = [ promise1, promise2, promise3 ];\n  \n    let mapFn = function(item){\n      return item + 1;\n    };\n  \n    map(promises, mapFn).then(function(array){\n      // Code here never runs because there are rejected promises!\n    }, function(reason) {\n      // reason.message === '2'\n    });\n    ```\n  \n    `map` will also wait if a promise is returned from `mapFn`. For example,\n    say you want to get all comments from a set of blog posts, but you need\n    the blog posts first because they contain a url to those comments.\n  \n    ```javscript\n    import { map } from 'rsvp';\n  \n    let mapFn = function(blogPost){\n      // getComments does some ajax and returns an Promise that is fulfilled\n      // with some comments data\n      return getComments(blogPost.comments_url);\n    };\n  \n    // getBlogPosts does some ajax and returns an Promise that is fulfilled\n    // with some blog post data\n    map(getBlogPosts(), mapFn).then(function(comments){\n      // comments is the result of asking the server for the comments\n      // of all blog posts returned from getBlogPosts()\n    });\n    ```\n  \n    @method map\n    @public\n    @static\n    @for rsvp\n    @param {Array} promises\n    @param {Function} mapFn function to be called on each fulfilled promise.\n    @param {String} [label] optional string for labeling the promise.\n    Useful for tooling.\n    @return {Promise} promise that is fulfilled with the result of calling\n    `mapFn` on each fulfilled promise or value when they become fulfilled.\n     The promise will be rejected if any of the given `promises` become rejected.\n  */\n\n\n  function map(promises, mapFn, label) {\n    if (typeof mapFn !== 'function') {\n      return Promise.reject(new TypeError(\"map expects a function as a second argument\"), label);\n    }\n\n    return Promise.resolve(promises, label).then(function (promises) {\n      if (!Array.isArray(promises)) {\n        throw new TypeError(\"map must be called with an array\");\n      }\n\n      return new MapEnumerator(Promise, promises, mapFn, label).promise;\n    });\n  }\n  /**\n    This is a convenient alias for `Promise.resolve`.\n  \n    @method resolve\n    @public\n    @static\n    @for rsvp\n    @param {*} value value that the returned promise will be resolved with\n    @param {String} [label] optional string for identifying the returned promise.\n    Useful for tooling.\n    @return {Promise} a promise that will become fulfilled with the given\n    `value`\n  */\n\n\n  function resolve$2(value, label) {\n    return Promise.resolve(value, label);\n  }\n  /**\n    This is a convenient alias for `Promise.reject`.\n  \n    @method reject\n    @public\n    @static\n    @for rsvp\n    @param {*} reason value that the returned promise will be rejected with.\n    @param {String} [label] optional string for identifying the returned promise.\n    Useful for tooling.\n    @return {Promise} a promise rejected with the given `reason`.\n  */\n\n\n  function reject$2(reason, label) {\n    return Promise.reject(reason, label);\n  }\n\n  var EMPTY_OBJECT = {};\n\n  class FilterEnumerator extends MapEnumerator {\n    _checkFullfillment() {\n      if (this._remaining === 0 && this._result !== null) {\n        var result = this._result.filter(val => val !== EMPTY_OBJECT);\n\n        fulfill(this.promise, result);\n        this._result = null;\n      }\n    }\n\n    _setResultAt(state, i, value, firstPass) {\n      if (firstPass) {\n        this._result[i] = value;\n        var val,\n            succeeded = true;\n\n        try {\n          val = this._mapFn(value, i);\n        } catch (error) {\n          succeeded = false;\n\n          this._settledAt(REJECTED, i, error, false);\n        }\n\n        if (succeeded) {\n          this._eachEntry(val, i, false);\n        }\n      } else {\n        this._remaining--;\n\n        if (!value) {\n          this._result[i] = EMPTY_OBJECT;\n        }\n      }\n    }\n\n  }\n  /**\n   `filter` is similar to JavaScript's native `filter` method.\n   `filterFn` is eagerly called meaning that as soon as any promise\n    resolves its value will be passed to `filterFn`. `filter` returns\n    a promise that will become fulfilled with the result of running\n    `filterFn` on the values the promises become fulfilled with.\n  \n    For example:\n  \n    ```javascript\n    import { filter, resolve } from 'rsvp';\n  \n    let promise1 = resolve(1);\n    let promise2 = resolve(2);\n    let promise3 = resolve(3);\n  \n    let promises = [promise1, promise2, promise3];\n  \n    let filterFn = function(item){\n      return item > 1;\n    };\n  \n    filter(promises, filterFn).then(function(result){\n      // result is [ 2, 3 ]\n    });\n    ```\n  \n    If any of the `promises` given to `filter` are rejected, the first promise\n    that is rejected will be given as an argument to the returned promise's\n    rejection handler. For example:\n  \n    ```javascript\n    import { filter, reject, resolve } from 'rsvp';\n  \n    let promise1 = resolve(1);\n    let promise2 = reject(new Error('2'));\n    let promise3 = reject(new Error('3'));\n    let promises = [ promise1, promise2, promise3 ];\n  \n    let filterFn = function(item){\n      return item > 1;\n    };\n  \n    filter(promises, filterFn).then(function(array){\n      // Code here never runs because there are rejected promises!\n    }, function(reason) {\n      // reason.message === '2'\n    });\n    ```\n  \n    `filter` will also wait for any promises returned from `filterFn`.\n    For instance, you may want to fetch a list of users then return a subset\n    of those users based on some asynchronous operation:\n  \n    ```javascript\n    import { filter, resolve } from 'rsvp';\n  \n    let alice = { name: 'alice' };\n    let bob   = { name: 'bob' };\n    let users = [ alice, bob ];\n  \n    let promises = users.map(function(user){\n      return resolve(user);\n    });\n  \n    let filterFn = function(user){\n      // Here, Alice has permissions to create a blog post, but Bob does not.\n      return getPrivilegesForUser(user).then(function(privs){\n        return privs.can_create_blog_post === true;\n      });\n    };\n    filter(promises, filterFn).then(function(users){\n      // true, because the server told us only Alice can create a blog post.\n      users.length === 1;\n      // false, because Alice is the only user present in `users`\n      users[0] === bob;\n    });\n    ```\n  \n    @method filter\n    @public\n    @static\n    @for rsvp\n    @param {Array} promises\n    @param {Function} filterFn - function to be called on each resolved value to\n    filter the final results.\n    @param {String} [label] optional string describing the promise. Useful for\n    tooling.\n    @return {Promise}\n  */\n\n\n  function filter(promises, filterFn, label) {\n    if (typeof filterFn !== 'function') {\n      return Promise.reject(new TypeError(\"filter expects function as a second argument\"), label);\n    }\n\n    return Promise.resolve(promises, label).then(function (promises) {\n      if (!Array.isArray(promises)) {\n        throw new TypeError(\"filter must be called with an array\");\n      }\n\n      return new FilterEnumerator(Promise, promises, filterFn, label).promise;\n    });\n  }\n\n  var len = 0;\n  var vertxNext;\n\n  function asap(callback, arg) {\n    queue$1[len] = callback;\n    queue$1[len + 1] = arg;\n    len += 2;\n\n    if (len === 2) {\n      // If len is 1, that means that we need to schedule an async flush.\n      // If additional callbacks are queued before the queue is flushed, they\n      // will be processed by this flush that we are scheduling.\n      scheduleFlush$1();\n    }\n  }\n\n  var browserWindow = typeof window !== 'undefined' ? window : undefined;\n  var browserGlobal = browserWindow || {};\n  var BrowserMutationObserver = browserGlobal.MutationObserver || browserGlobal.WebKitMutationObserver;\n  var isNode = typeof self === 'undefined' && typeof process !== 'undefined' && {}.toString.call(process) === '[object process]'; // test for web worker but not in IE10\n\n  var isWorker = typeof Uint8ClampedArray !== 'undefined' && typeof importScripts !== 'undefined' && typeof MessageChannel !== 'undefined'; // node\n\n  function useNextTick() {\n    var nextTick = process.nextTick; // node version 0.10.x displays a deprecation warning when nextTick is used recursively\n    // setImmediate should be used instead instead\n\n    var version = process.versions.node.match(/^(?:(\\d+)\\.)?(?:(\\d+)\\.)?(\\*|\\d+)$/);\n\n    if (Array.isArray(version) && version[1] === '0' && version[2] === '10') {\n      nextTick = setImmediate;\n    }\n\n    return () => nextTick(flush);\n  } // vertx\n\n\n  function useVertxTimer() {\n    if (typeof vertxNext !== 'undefined') {\n      return function () {\n        vertxNext(flush);\n      };\n    }\n\n    return useSetTimeout();\n  }\n\n  function useMutationObserver() {\n    var iterations = 0;\n    var observer = new BrowserMutationObserver(flush);\n    var node = document.createTextNode('');\n    observer.observe(node, {\n      characterData: true\n    });\n    return () => node.data = iterations = ++iterations % 2;\n  } // web worker\n\n\n  function useMessageChannel() {\n    var channel = new MessageChannel();\n    channel.port1.onmessage = flush;\n    return () => channel.port2.postMessage(0);\n  }\n\n  function useSetTimeout() {\n    return () => setTimeout(flush, 1);\n  }\n\n  var queue$1 = new Array(1000);\n\n  function flush() {\n    for (var i = 0; i < len; i += 2) {\n      var callback = queue$1[i];\n      var arg = queue$1[i + 1];\n      callback(arg);\n      queue$1[i] = undefined;\n      queue$1[i + 1] = undefined;\n    }\n\n    len = 0;\n  }\n\n  function attemptVertex() {\n    try {\n      var vertx = Function('return this')().require('vertx');\n\n      vertxNext = vertx.runOnLoop || vertx.runOnContext;\n      return useVertxTimer();\n    } catch (e) {\n      return useSetTimeout();\n    }\n  }\n\n  var scheduleFlush$1; // Decide what async method to use to triggering processing of queued callbacks:\n\n  if (isNode) {\n    scheduleFlush$1 = useNextTick();\n  } else if (BrowserMutationObserver) {\n    scheduleFlush$1 = useMutationObserver();\n  } else if (isWorker) {\n    scheduleFlush$1 = useMessageChannel();\n  } else if (browserWindow === undefined && typeof require === 'function') {\n    scheduleFlush$1 = attemptVertex();\n  } else {\n    scheduleFlush$1 = useSetTimeout();\n  } // defaults\n\n\n  config.async = asap;\n\n  config.after = cb => setTimeout(cb, 0);\n\n  var cast = resolve$2;\n  _exports.cast = cast;\n\n  var async = (callback, arg) => config.async(callback, arg);\n\n  _exports.async = async;\n\n  function on() {\n    config.on(...arguments);\n  }\n\n  function off() {\n    config.off(...arguments);\n  } // Set up instrumentation through `window.__PROMISE_INTRUMENTATION__`\n\n\n  if (typeof window !== 'undefined' && typeof window['__PROMISE_INSTRUMENTATION__'] === 'object') {\n    var callbacks = window['__PROMISE_INSTRUMENTATION__'];\n    configure('instrument', true);\n\n    for (var eventName in callbacks) {\n      if (callbacks.hasOwnProperty(eventName)) {\n        on(eventName, callbacks[eventName]);\n      }\n    }\n  } // the default export here is for backwards compat:\n  //   https://github.com/tildeio/rsvp.js/issues/434\n\n\n  var rsvp = {\n    asap,\n    cast,\n    Promise,\n    EventTarget,\n    all: all$1,\n    allSettled,\n    race: race$1,\n    hash,\n    hashSettled,\n    rethrow,\n    defer,\n    denodeify,\n    configure,\n    on,\n    off,\n    resolve: resolve$2,\n    reject: reject$2,\n    map,\n    async,\n    filter\n  };\n  var _default = rsvp;\n  _exports.default = _default;\n});","(function() {\n  if (typeof FastBoot === 'undefined') {\n    var current = document.getElementById('fastboot-body-start');\n\n    if (\n      current &&\n      typeof Ember.ViewUtils.isSerializationFirstNode === 'function' &&\n      Ember.ViewUtils.isSerializationFirstNode(current.nextSibling)\n    ) {\n      Ember.ApplicationInstance.reopen({\n        _bootSync: function(options) {\n          if (options === undefined) {\n            options = {\n              _renderMode: 'rehydrate'\n            };\n          }\n\n          return this._super(options);\n        }\n      });\n\n      // Prevent clearRender  by removing `fastboot-body-start` which is already\n      // guarded for\n      current.parentNode.removeChild(current);\n      var end = document.getElementById('fastboot-body-end');\n\n      if (end) {\n        end.parentNode.removeChild(end);\n      }\n    }\n  }\n})();\n","define('@ember-data/adapter/-private', ['exports', 'require', 'ember-inflector'], function (exports, require, emberInflector) { 'use strict';\n\n  var require__default = 'default' in require ? require['default'] : require;\n\n  var newline = /\\r?\\n/;\n  function parseResponseHeaders(headersString) {\n    var headers = Object.create(null);\n\n    if (!headersString) {\n      return headers;\n    }\n\n    var headerPairs = headersString.split(newline);\n\n    for (var i = 0; i < headerPairs.length; i++) {\n      var header = headerPairs[i];\n      var j = 0;\n      var foundSep = false;\n\n      for (; j < header.length; j++) {\n        if (header.charCodeAt(j) === 58\n        /* ':' */\n        ) {\n            foundSep = true;\n            break;\n          }\n      }\n\n      if (foundSep === false) {\n        continue;\n      }\n\n      var field = header.substring(0, j).trim();\n      var value = header.substring(j + 1, header.length).trim();\n\n      if (value) {\n        var lowerCasedField = field.toLowerCase();\n        headers[lowerCasedField] = value;\n        headers[field] = value;\n      }\n    }\n\n    return headers;\n  }\n\n  function continueOnReject(promise) {\n    return Ember.RSVP.resolve(promise).catch(e => e);\n  }\n\n  /*\n   * Function that always attempts to parse the response as json, and if an error is thrown,\n   * returns `undefined` if the response is successful and has a status code of 204 (No Content),\n   * or 205 (Reset Content) or if the request method was 'HEAD', and the plain payload otherwise.\n   */\n  function _determineContent(response, requestData, payload) {\n    var ret = payload;\n    var error;\n\n    if (!response.ok) {\n      return payload;\n    }\n\n    try {\n      ret = JSON.parse(payload);\n    } catch (e) {\n      if (!(e instanceof SyntaxError)) {\n        return e;\n      }\n\n      e.payload = payload;\n      error = e;\n    }\n\n    var status = response.status;\n\n    if (response.ok && (status === 204 || status === 205 || requestData.method === 'HEAD')) {\n      return;\n    }\n\n    {\n      var message = `The server returned an empty string for ${requestData.method} ${requestData.url}, which cannot be parsed into a valid JSON. Return either null or {}.`;\n\n      if (payload === '') {\n        ( Ember.warn(message, true, {\n          id: 'ds.adapter.returned-empty-string-as-JSON'\n        }));\n      }\n    }\n\n    if (error) {\n      {\n        // eslint-disable-next-line no-console\n        console.warn('This response was unable to be parsed as json.', payload);\n      }\n\n      return error;\n    }\n\n    return ret;\n  }\n\n  function determineBodyPromise(response, requestData) {\n    // response.text() may resolve or reject\n    // it is a native promise, may not have finally\n    return continueOnReject(response.text()).then(payload => _determineContent(response, requestData, payload));\n  }\n\n  var RBRACKET = /\\[\\]$/;\n\n  function isPlainObject(obj) {\n    return Object.prototype.toString.call(obj) === '[object Object]';\n  }\n  /*\n   * Helper function that turns the data/body of a request into a query param string.\n   * This is directly copied from jQuery.param.\n   */\n\n\n  function serializeQueryParams(queryParamsObject) {\n    var s = [];\n\n    function buildParams(prefix, obj) {\n      var i, len, key;\n\n      if (prefix) {\n        if (Array.isArray(obj)) {\n          for (i = 0, len = obj.length; i < len; i++) {\n            if (RBRACKET.test(prefix)) {\n              add(s, prefix, obj[i]);\n            } else {\n              buildParams(prefix + '[' + (typeof obj[i] === 'object' ? i : '') + ']', obj[i]);\n            }\n          }\n        } else if (isPlainObject(obj)) {\n          for (key in obj) {\n            buildParams(prefix + '[' + key + ']', obj[key]);\n          }\n        } else {\n          add(s, prefix, obj);\n        }\n      } else if (Array.isArray(obj)) {\n        for (i = 0, len = obj.length; i < len; i++) {\n          add(s, obj[i].name, obj[i].value);\n        }\n      } else {\n        for (key in obj) {\n          buildParams(key, obj[key]);\n        }\n      }\n\n      return s;\n    }\n\n    return buildParams('', queryParamsObject).join('&').replace(/%20/g, '+');\n  }\n  /*\n   * Part of the `serializeQueryParams` helper function.\n   */\n\n  function add(s, k, v) {\n    // Strip out keys with undefined value and replace null values with\n    // empty strings (mimics jQuery.ajax)\n    if (v === undefined) {\n      return;\n    } else if (v === null) {\n      v = '';\n    }\n\n    v = typeof v === 'function' ? v() : v;\n    s[s.length] = `${encodeURIComponent(k)}=${encodeURIComponent(v)}`;\n  }\n\n  var _fetch = null;\n  function getFetchFunction() {\n    if (_fetch !== null) {\n      return _fetch();\n    }\n\n    if (require.has('fetch')) {\n      // use `fetch` module by default, this is commonly provided by ember-fetch\n      var fetchFn = require__default('fetch').default;\n\n      _fetch = () => fetchFn;\n    } else if (typeof fetch === 'function') {\n      // fallback to using global fetch\n      _fetch = () => fetch;\n    } else {\n      throw new Error('cannot find the `fetch` module or the `fetch` global. Did you mean to install the `ember-fetch` addon?');\n    }\n\n    return _fetch();\n  }\n\n  /**\n    @module @ember-data/adapter\n  */\n\n  /**\n    ## Using BuildURLMixin\n\n    To use URL building, include the mixin when extending an adapter, and call `buildURL` where needed.\n    The default behaviour is designed for RESTAdapter.\n\n    ### Example\n\n    ```javascript\n    import Adapter, { BuildURLMixin } from '@ember-data/adapter';\n\n    export default Adapter.extend(BuildURLMixin, {\n      findRecord: function(store, type, id, snapshot) {\n        var url = this.buildURL(type.modelName, id, snapshot, 'findRecord');\n        return this.ajax(url, 'GET');\n      }\n    });\n    ```\n\n    ### Attributes\n\n    The `host` and `namespace` attributes will be used if defined, and are optional.\n\n    @class BuildURLMixin\n  */\n\n  var buildUrlMixin = Ember.Mixin.create({\n    /**\n      Builds a URL for a given type and optional ID.\n       By default, it pluralizes the type's name (for example, 'post'\n      becomes 'posts' and 'person' becomes 'people'). To override the\n      pluralization see [pathForType](BuildUrlMixin/methods/pathForType?anchor=pathForType).\n       If an ID is specified, it adds the ID to the path generated\n      for the type, separated by a `/`.\n       When called by `RESTAdapter.findMany()` the `id` and `snapshot` parameters\n      will be arrays of ids and snapshots.\n       @method buildURL\n      @param {String} modelName\n      @param {(String|Array|Object)} id single id or array of ids or query\n      @param {(Snapshot|SnapshotRecordArray)} snapshot single snapshot or array of snapshots\n      @param {String} requestType\n      @param {Object} query object of query parameters to send for query requests.\n      @return {String} url\n    */\n    buildURL(modelName, id, snapshot, requestType, query) {\n      switch (requestType) {\n        case 'findRecord':\n          return this.urlForFindRecord(id, modelName, snapshot);\n\n        case 'findAll':\n          return this.urlForFindAll(modelName, snapshot);\n\n        case 'query':\n          return this.urlForQuery(query, modelName);\n\n        case 'queryRecord':\n          return this.urlForQueryRecord(query, modelName);\n\n        case 'findMany':\n          return this.urlForFindMany(id, modelName, snapshot);\n\n        case 'findHasMany':\n          return this.urlForFindHasMany(id, modelName, snapshot);\n\n        case 'findBelongsTo':\n          return this.urlForFindBelongsTo(id, modelName, snapshot);\n\n        case 'createRecord':\n          return this.urlForCreateRecord(modelName, snapshot);\n\n        case 'updateRecord':\n          return this.urlForUpdateRecord(id, modelName, snapshot);\n\n        case 'deleteRecord':\n          return this.urlForDeleteRecord(id, modelName, snapshot);\n\n        default:\n          return this._buildURL(modelName, id);\n      }\n    },\n\n    /**\n      @method _buildURL\n      @private\n      @param {String} modelName\n      @param {String} id\n      @return {String} url\n    */\n    _buildURL(modelName, id) {\n      var path;\n      var url = [];\n      var host = Ember.get(this, 'host');\n      var prefix = this.urlPrefix();\n\n      if (modelName) {\n        path = this.pathForType(modelName);\n\n        if (path) {\n          url.push(path);\n        }\n      }\n\n      if (id) {\n        url.push(encodeURIComponent(id));\n      }\n\n      if (prefix) {\n        url.unshift(prefix);\n      }\n\n      url = url.join('/');\n\n      if (!host && url && url.charAt(0) !== '/') {\n        url = '/' + url;\n      }\n\n      return url;\n    },\n\n    /**\n     Builds a URL for a `store.findRecord(type, id)` call.\n      Example:\n      ```app/adapters/user.js\n     import JSONAPIAdapter from '@ember-data/adapter/json-api';\n      export default JSONAPIAdapter.extend({\n       urlForFindRecord(id, modelName, snapshot) {\n         let baseUrl = this.buildURL(modelName, id, snapshot);\n         return `${baseUrl}/users/${snapshot.adapterOptions.user_id}/playlists/${id}`;\n       }\n     });\n     ```\n      @method urlForFindRecord\n     @param {String} id\n     @param {String} modelName\n     @param {Snapshot} snapshot\n     @return {String} url\n      */\n    urlForFindRecord(id, modelName, snapshot) {\n      return this._buildURL(modelName, id);\n    },\n\n    /**\n     Builds a URL for a `store.findAll(type)` call.\n      Example:\n      ```app/adapters/comment.js\n     import JSONAPIAdapter from '@ember-data/adapter/json-api';\n      export default JSONAPIAdapter.extend({\n       urlForFindAll(modelName, snapshot) {\n         let baseUrl = this.buildURL(modelName);\n         return `${baseUrl}/data/comments.json`;\n       }\n     });\n     ```\n      @method urlForFindAll\n     @param {String} modelName\n     @param {SnapshotRecordArray} snapshot\n     @return {String} url\n     */\n    urlForFindAll(modelName, snapshot) {\n      return this._buildURL(modelName);\n    },\n\n    /**\n     Builds a URL for a `store.query(type, query)` call.\n      Example:\n      ```app/adapters/application.js\n     import RESTAdapter from '@ember-data/adapter/rest';\n      export default RESTAdapter.extend({\n       host: 'https://api.github.com',\n       urlForQuery (query, modelName) {\n         switch(modelName) {\n           case 'repo':\n             return `https://api.github.com/orgs/${query.orgId}/repos`;\n           default:\n             return this._super(...arguments);\n         }\n       }\n     });\n     ```\n      @method urlForQuery\n     @param {Object} query\n     @param {String} modelName\n     @return {String} url\n     */\n    urlForQuery(query, modelName) {\n      return this._buildURL(modelName);\n    },\n\n    /**\n     Builds a URL for a `store.queryRecord(type, query)` call.\n      Example:\n      ```app/adapters/application.js\n     import RESTAdapter from '@ember-data/adapter/rest';\n      export default RESTAdapter.extend({\n       urlForQueryRecord({ slug }, modelName) {\n         let baseUrl = this.buildURL();\n         return `${baseUrl}/${encodeURIComponent(slug)}`;\n       }\n     });\n     ```\n      @method urlForQueryRecord\n     @param {Object} query\n     @param {String} modelName\n     @return {String} url\n     */\n    urlForQueryRecord(query, modelName) {\n      return this._buildURL(modelName);\n    },\n\n    /**\n     Builds a URL for coalescing multiple `store.findRecord(type, id)`\n     records into 1 request when the adapter's `coalesceFindRequests`\n     property is `true`.\n      Example:\n      ```app/adapters/application.js\n     import RESTAdapter from '@ember-data/adapter/rest';\n      export default RESTAdapter.extend({\n       urlForFindMany(ids, modelName) {\n         let baseUrl = this.buildURL();\n         return `${baseUrl}/coalesce`;\n       }\n     });\n     ```\n      @method urlForFindMany\n     @param {Array} ids\n     @param {String} modelName\n     @param {Array} snapshots\n     @return {String} url\n     */\n    urlForFindMany(ids, modelName, snapshots) {\n      return this._buildURL(modelName);\n    },\n\n    /**\n     Builds a URL for fetching an async `hasMany` relationship when a URL\n     is not provided by the server.\n      Example:\n      ```app/adapters/application.js\n     import JSONAPIAdapter from '@ember-data/adapter/json-api';\n      export default JSONAPIAdapter.extend({\n       urlForFindHasMany(id, modelName, snapshot) {\n         let baseUrl = this.buildURL(modelName, id);\n         return `${baseUrl}/relationships`;\n       }\n     });\n     ```\n      @method urlForFindHasMany\n     @param {String} id\n     @param {String} modelName\n     @param {Snapshot} snapshot\n     @return {String} url\n     */\n    urlForFindHasMany(id, modelName, snapshot) {\n      return this._buildURL(modelName, id);\n    },\n\n    /**\n     Builds a URL for fetching an async `belongsTo` relationship when a url\n     is not provided by the server.\n      Example:\n      ```app/adapters/application.js\n     import JSONAPIAdapter from '@ember-data/adapter/json-api';\n      export default JSONAPIAdapter.extend({\n       urlForFindBelongsTo(id, modelName, snapshot) {\n         let baseUrl = this.buildURL(modelName, id);\n         return `${baseUrl}/relationships`;\n       }\n     });\n     ```\n      @method urlForFindBelongsTo\n     @param {String} id\n     @param {String} modelName\n     @param {Snapshot} snapshot\n     @return {String} url\n     */\n    urlForFindBelongsTo(id, modelName, snapshot) {\n      return this._buildURL(modelName, id);\n    },\n\n    /**\n     Builds a URL for a `record.save()` call when the record was created\n     locally using `store.createRecord()`.\n      Example:\n      ```app/adapters/application.js\n     import RESTAdapter from '@ember-data/adapter/rest';\n      export default RESTAdapter.extend({\n       urlForCreateRecord(modelName, snapshot) {\n         return this._super(...arguments) + '/new';\n       }\n     });\n     ```\n      @method urlForCreateRecord\n     @param {String} modelName\n     @param {Snapshot} snapshot\n     @return {String} url\n     */\n    urlForCreateRecord(modelName, snapshot) {\n      return this._buildURL(modelName);\n    },\n\n    /**\n     Builds a URL for a `record.save()` call when the record has been updated locally.\n      Example:\n      ```app/adapters/application.js\n     import RESTAdapter from '@ember-data/adapter/rest';\n      export default RESTAdapter.extend({\n       urlForUpdateRecord(id, modelName, snapshot) {\n         return `/${id}/feed?access_token=${snapshot.adapterOptions.token}`;\n       }\n     });\n     ```\n      @method urlForUpdateRecord\n     @param {String} id\n     @param {String} modelName\n     @param {Snapshot} snapshot\n     @return {String} url\n     */\n    urlForUpdateRecord(id, modelName, snapshot) {\n      return this._buildURL(modelName, id);\n    },\n\n    /**\n     Builds a URL for a `record.save()` call when the record has been deleted locally.\n      Example:\n      ```app/adapters/application.js\n     import RESTAdapter from '@ember-data/adapter/rest';\n      export default RESTAdapter.extend({\n       urlForDeleteRecord(id, modelName, snapshot) {\n         return this._super(...arguments) + '/destroy';\n       }\n     });\n     ```\n      @method urlForDeleteRecord\n     @param {String} id\n     @param {String} modelName\n     @param {Snapshot} snapshot\n     @return {String} url\n     */\n    urlForDeleteRecord(id, modelName, snapshot) {\n      return this._buildURL(modelName, id);\n    },\n\n    /**\n      @method urlPrefix\n      @private\n      @param {String} path\n      @param {String} parentURL\n      @return {String} urlPrefix\n    */\n    urlPrefix(path, parentURL) {\n      var host = Ember.get(this, 'host');\n      var namespace = Ember.get(this, 'namespace');\n\n      if (!host || host === '/') {\n        host = '';\n      }\n\n      if (path) {\n        // Protocol relative url\n        if (/^\\/\\//.test(path) || /http(s)?:\\/\\//.test(path)) {\n          // Do nothing, the full host is already included.\n          return path; // Absolute path\n        } else if (path.charAt(0) === '/') {\n          return `${host}${path}`; // Relative path\n        } else {\n          return `${parentURL}/${path}`;\n        }\n      } // No path provided\n\n\n      var url = [];\n\n      if (host) {\n        url.push(host);\n      }\n\n      if (namespace) {\n        url.push(namespace);\n      }\n\n      return url.join('/');\n    },\n\n    /**\n      Determines the pathname for a given type.\n       By default, it pluralizes the type's name (for example,\n      'post' becomes 'posts' and 'person' becomes 'people').\n       ### Pathname customization\n       For example, if you have an object `LineItem` with an\n      endpoint of `/line_items/`.\n       ```app/adapters/application.js\n      import RESTAdapter from '@ember-data/adapter/rest';\n      import { decamelize } from '@ember/string';\n      import { pluralize } from 'ember-inflector';\n       export default RESTAdapter.extend({\n        pathForType: function(modelName) {\n          var decamelized = decamelize(modelName);\n          return pluralize(decamelized);\n        }\n      });\n      ```\n       @method pathForType\n      @param {String} modelName\n      @return {String} path\n    **/\n    pathForType(modelName) {\n      var camelized = Ember.String.camelize(modelName);\n      return emberInflector.pluralize(camelized);\n    }\n\n  });\n\n  function serializeIntoHash(store, modelClass, snapshot, options = {\n    includeId: true\n  }) {\n    var serializer = store.serializerFor(modelClass.modelName);\n\n    if (typeof serializer.serializeIntoHash === 'function') {\n      var data = {};\n      serializer.serializeIntoHash(data, modelClass, snapshot, options);\n      return data;\n    }\n\n    return serializer.serialize(snapshot, options);\n  }\n\n  exports.BuildURLMixin = buildUrlMixin;\n  exports.determineBodyPromise = determineBodyPromise;\n  exports.fetch = getFetchFunction;\n  exports.parseResponseHeaders = parseResponseHeaders;\n  exports.serializeIntoHash = serializeIntoHash;\n  exports.serializeQueryParams = serializeQueryParams;\n\n  Object.defineProperty(exports, '__esModule', { value: true });\n\n});\n","define(\"@ember-data/adapter/error\", [\"exports\", \"@ember-data/store/-private\"], function (_exports, _private) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"errorsHashToArray\", {\n    enumerable: true,\n    get: function () {\n      return _private.errorsHashToArray;\n    }\n  });\n  Object.defineProperty(_exports, \"errorsArrayToHash\", {\n    enumerable: true,\n    get: function () {\n      return _private.errorsArrayToHash;\n    }\n  });\n  _exports.ServerError = _exports.ConflictError = _exports.NotFoundError = _exports.ForbiddenError = _exports.UnauthorizedError = _exports.AbortError = _exports.TimeoutError = _exports.InvalidError = _exports.default = void 0;\n\n  /**\n    @module @ember-data/adapter\n  */\n\n  /**\n    A `AdapterError` is used by an adapter to signal that an error occurred\n    during a request to an external API. It indicates a generic error, and\n    subclasses are used to indicate specific error states. The following\n    subclasses are provided:\n  \n    - `InvalidError`\n    - `TimeoutError`\n    - `AbortError`\n    - `UnauthorizedError`\n    - `ForbiddenError`\n    - `NotFoundError`\n    - `ConflictError`\n    - `ServerError`\n  \n    To create a custom error to signal a specific error state in communicating\n    with an external API, extend the `AdapterError`. For example, if the\n    external API exclusively used HTTP `503 Service Unavailable` to indicate\n    it was closed for maintenance:\n  \n    ```app/adapters/maintenance-error.js\n    import AdapterError from '@ember-data/adapter/error';\n  \n    export default AdapterError.extend({ message: \"Down for maintenance.\" });\n    ```\n  \n    This error would then be returned by an adapter's `handleResponse` method:\n  \n    ```app/adapters/application.js\n    import JSONAPIAdapter from '@ember-data/adapter/json-api';\n    import MaintenanceError from './maintenance-error';\n  \n    export default JSONAPIAdapter.extend({\n      handleResponse(status) {\n        if (503 === status) {\n          return new MaintenanceError();\n        }\n  \n        return this._super(...arguments);\n      }\n    });\n    ```\n  \n    And can then be detected in an application and used to send the user to an\n    `under-maintenance` route:\n  \n    ```app/routes/application.js\n    import Route from '@ember/routing/route';\n    import MaintenanceError from '../adapters/maintenance-error';\n  \n    export default Route.extend({\n      actions: {\n        error(error, transition) {\n          if (error instanceof MaintenanceError) {\n            this.transitionTo('under-maintenance');\n            return;\n          }\n  \n          // ...other error handling logic\n        }\n      }\n    });\n    ```\n  \n    @class AdapterError\n  */\n  function AdapterError(errors, message = 'Adapter operation failed') {\n    this.isAdapterError = true;\n    var error = Ember.Error.call(this, message); // in ember 3.8+ Error is a Native Error and we don't\n    // gain these automatically from the EmberError.call\n\n    if (error) {\n      this.stack = error.stack;\n      this.description = error.description;\n      this.fileName = error.fileName;\n      this.lineNumber = error.lineNumber;\n      this.message = error.message;\n      this.name = error.name;\n      this.number = error.number;\n    }\n\n    this.errors = errors || [{\n      title: 'Adapter Error',\n      detail: message\n    }];\n  }\n\n  var _default = AdapterError;\n  _exports.default = _default;\n\n  function extendFn(ErrorClass) {\n    return function ({\n      message: defaultMessage\n    } = {}) {\n      return extend(ErrorClass, defaultMessage);\n    };\n  }\n\n  function extend(ParentErrorClass, defaultMessage) {\n    var ErrorClass = function (errors, message) {\n      (true && !(Array.isArray(errors || [])) && Ember.assert('`AdapterError` expects json-api formatted errors array.', Array.isArray(errors || [])));\n      ParentErrorClass.call(this, errors, message || defaultMessage);\n    };\n\n    ErrorClass.prototype = Object.create(ParentErrorClass.prototype);\n    ErrorClass.extend = extendFn(ErrorClass);\n    return ErrorClass;\n  }\n\n  AdapterError.prototype = Object.create(Ember.Error.prototype);\n  AdapterError.prototype.code = 'AdapterError';\n  AdapterError.extend = extendFn(AdapterError);\n  /**\n    A `InvalidError` is used by an adapter to signal the external API\n    was unable to process a request because the content was not\n    semantically correct or meaningful per the API. Usually, this means a\n    record failed some form of server-side validation. When a promise\n    from an adapter is rejected with a `InvalidError` the record will\n    transition to the `invalid` state and the errors will be set to the\n    `errors` property on the record.\n  \n    For Ember Data to correctly map errors to their corresponding\n    properties on the model, Ember Data expects each error to be\n    a valid JSON-API error object with a `source/pointer` that matches\n    the property name. For example, if you had a Post model that\n    looked like this.\n  \n    ```app/models/post.js\n    import Model, { attr } from '@ember-data/model';\n  \n    export default Model.extend({\n      title: attr('string'),\n      content: attr('string')\n    });\n    ```\n  \n    To show an error from the server related to the `title` and\n    `content` properties your adapter could return a promise that\n    rejects with a `InvalidError` object that looks like this:\n  \n    ```app/adapters/post.js\n    import RSVP from 'RSVP';\n    import RESTAdapter from '@ember-data/adapter/rest';\n    import { InvalidError } from '@ember-data/adapter/error';\n  \n    export default RESTAdapter.extend({\n      updateRecord() {\n        // Fictional adapter that always rejects\n        return RSVP.reject(new InvalidError([\n          {\n            detail: 'Must be unique',\n            source: { pointer: '/data/attributes/title' }\n          },\n          {\n            detail: 'Must not be blank',\n            source: { pointer: '/data/attributes/content'}\n          }\n        ]));\n      }\n    });\n    ```\n  \n    Your backend may use different property names for your records the\n    store will attempt to extract and normalize the errors using the\n    serializer's `extractErrors` method before the errors get added to\n    the model. As a result, it is safe for the `InvalidError` to\n    wrap the error payload unaltered.\n  \n    @class InvalidError\n    @extends AdapterError\n  */\n\n  var InvalidError = extend(AdapterError, 'The adapter rejected the commit because it was invalid');\n  _exports.InvalidError = InvalidError;\n  InvalidError.prototype.code = 'InvalidError';\n  /**\n    A `TimeoutError` is used by an adapter to signal that a request\n    to the external API has timed out. I.e. no response was received from\n    the external API within an allowed time period.\n  \n    An example use case would be to warn the user to check their internet\n    connection if an adapter operation has timed out:\n  \n    ```app/routes/application.js\n    import Route from '@ember/routing/route';\n    import { TimeoutError } from '@ember-data/adapter/error';\n    import { action } from '@ember/object';\n  \n    export default class ApplicationRoute extends Route {\n      @action\n      error(error, transition) {\n        if (error instanceof TimeoutError) {\n          // alert the user\n          alert('Are you still connected to the Internet?');\n          return;\n        }\n  \n        // ...other error handling logic\n      }\n    }\n    ```\n  \n    @class TimeoutError\n    @extends AdapterError\n  */\n\n  var TimeoutError = extend(AdapterError, 'The adapter operation timed out');\n  _exports.TimeoutError = TimeoutError;\n  TimeoutError.prototype.code = 'TimeoutError';\n  /**\n    A `AbortError` is used by an adapter to signal that a request to\n    the external API was aborted. For example, this can occur if the user\n    navigates away from the current page after a request to the external API\n    has been initiated but before a response has been received.\n  \n    @class AbortError\n    @extends AdapterError\n  */\n\n  var AbortError = extend(AdapterError, 'The adapter operation was aborted');\n  _exports.AbortError = AbortError;\n  AbortError.prototype.code = 'AbortError';\n  /**\n    A `UnauthorizedError` equates to a HTTP `401 Unauthorized` response\n    status. It is used by an adapter to signal that a request to the external\n    API was rejected because authorization is required and has failed or has not\n    yet been provided.\n  \n    An example use case would be to redirect the user to a login route if a\n    request is unauthorized:\n  \n    ```app/routes/application.js\n    import Route from '@ember/routing/route';\n    import { UnauthorizedError } from '@ember-data/adapter/error';\n    import { action } from '@ember/object';\n  \n    export default class ApplicationRoute extends Route {\n      @action\n      error(error, transition) {\n        if (error instanceof UnauthorizedError) {\n          // go to the login route\n          this.transitionTo('login');\n          return;\n        }\n  \n        // ...other error handling logic\n      }\n    }\n    ```\n  \n    @class UnauthorizedError\n    @extends AdapterError\n  */\n\n  var UnauthorizedError = extend(AdapterError, 'The adapter operation is unauthorized');\n  _exports.UnauthorizedError = UnauthorizedError;\n  UnauthorizedError.prototype.code = 'UnauthorizedError';\n  /**\n    A `ForbiddenError` equates to a HTTP `403 Forbidden` response status.\n    It is used by an adapter to signal that a request to the external API was\n    valid but the server is refusing to respond to it. If authorization was\n    provided and is valid, then the authenticated user does not have the\n    necessary permissions for the request.\n  \n    @class ForbiddenError\n    @extends AdapterError\n  */\n\n  var ForbiddenError = extend(AdapterError, 'The adapter operation is forbidden');\n  _exports.ForbiddenError = ForbiddenError;\n  ForbiddenError.prototype.code = 'ForbiddenError';\n  /**\n    A `NotFoundError` equates to a HTTP `404 Not Found` response status.\n    It is used by an adapter to signal that a request to the external API\n    was rejected because the resource could not be found on the API.\n  \n    An example use case would be to detect if the user has entered a route\n    for a specific model that does not exist. For example:\n  \n    ```app/routes/post.js\n    import Route from '@ember/routing/route';\n    import { NotFoundError } from '@ember-data/adapter/error';\n    import { inject as service } from '@ember/service';\n    import { action } from '@ember/object';\n  \n    export default class PostRoute extends Route {\n      @service store;\n      model(params) {\n        return this.get('store').findRecord('post', params.post_id);\n      }\n      @action\n      error(error, transition) {\n        if (error instanceof NotFoundError) {\n          // redirect to a list of all posts instead\n          this.transitionTo('posts');\n        } else {\n          // otherwise let the error bubble\n          return true;\n        }\n      }\n    }\n    ```\n  \n    @class NotFoundError\n    @extends AdapterError\n  */\n\n  var NotFoundError = extend(AdapterError, 'The adapter could not find the resource');\n  _exports.NotFoundError = NotFoundError;\n  NotFoundError.prototype.code = 'NotFoundError';\n  /**\n    A `ConflictError` equates to a HTTP `409 Conflict` response status.\n    It is used by an adapter to indicate that the request could not be processed\n    because of a conflict in the request. An example scenario would be when\n    creating a record with a client-generated ID but that ID is already known\n    to the external API.\n  \n    @class ConflictError\n    @extends AdapterError\n  */\n\n  var ConflictError = extend(AdapterError, 'The adapter operation failed due to a conflict');\n  _exports.ConflictError = ConflictError;\n  ConflictError.prototype.code = 'ConflictError';\n  /**\n    A `ServerError` equates to a HTTP `500 Internal Server Error` response\n    status. It is used by the adapter to indicate that a request has failed\n    because of an error in the external API.\n  \n    @class ServerError\n    @extends AdapterError\n  */\n\n  var ServerError = extend(AdapterError, 'The adapter operation failed due to a server error');\n  _exports.ServerError = ServerError;\n  ServerError.prototype.code = 'ServerError';\n});","define(\"@ember-data/adapter/index\", [\"exports\", \"@ember-data/adapter/-private\"], function (_exports, _private) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"BuildURLMixin\", {\n    enumerable: true,\n    get: function () {\n      return _private.BuildURLMixin;\n    }\n  });\n  _exports.default = void 0;\n\n  /**\n    An adapter is an object that receives requests from a store and\n    translates them into the appropriate action to take against your\n    persistence layer. The persistence layer is usually an HTTP API but\n    may be anything, such as the browser's local storage. Typically the\n    adapter is not invoked directly instead its functionality is accessed\n    through the `store`.\n  \n    ### Creating an Adapter\n  \n    Create a new subclass of `Adapter` in the `app/adapters` folder:\n  \n    ```app/adapters/application.js\n    import Adapter from '@ember-data/adapter';\n  \n    export default Adapter.extend({\n      // ...your code here\n    });\n    ```\n  \n    Model-specific adapters can be created by putting your adapter\n    class in an `app/adapters/` + `model-name` + `.js` file of the application.\n  \n    ```app/adapters/post.js\n    import Adapter from '@ember-data/adapter';\n  \n    export default Adapter.extend({\n      // ...Post-specific adapter code goes here\n    });\n    ```\n  \n    `Adapter` is an abstract base class that you should override in your\n    application to customize it for your backend. The minimum set of methods\n    that you should implement is:\n  \n      * `findRecord()`\n      * `createRecord()`\n      * `updateRecord()`\n      * `deleteRecord()`\n      * `findAll()`\n      * `query()`\n  \n    To improve the network performance of your application, you can optimize\n    your adapter by overriding these lower-level methods:\n  \n      * `findMany()`\n  \n  \n    For an example of the implementation, see `RESTAdapter`, the\n    included REST adapter.\n  \n    @module @ember-data/adapter\n    @class Adapter\n    @extends EmberObject\n  */\n  var _default = Ember.Object.extend({\n    /**\n      If you would like your adapter to use a custom serializer you can\n      set the `defaultSerializer` property to be the name of the custom\n      serializer.\n       Note the `defaultSerializer` serializer has a lower priority than\n      a model specific serializer (i.e. `PostSerializer`) or the\n      `application` serializer.\n       ```app/adapters/django.js\n      import Adapter from '@ember-data/adapter';\n       export default Adapter.extend({\n        defaultSerializer: 'django'\n      });\n      ```\n       @deprecated\n      @property defaultSerializer\n      @type {String}\n    */\n    defaultSerializer: '-default',\n\n    /**\n      The `findRecord()` method is invoked when the store is asked for a record that\n      has not previously been loaded. In response to `findRecord()` being called, you\n      should query your persistence layer for a record with the given ID. The `findRecord`\n      method should return a promise that will resolve to a JavaScript object that will be\n      normalized by the serializer.\n       Here is an example of the `findRecord` implementation:\n       ```app/adapters/application.js\n      import Adapter from '@ember-data/adapter';\n      import RSVP from 'RSVP';\n      import $ from 'jquery';\n       export default Adapter.extend({\n        findRecord(store, type, id, snapshot) {\n          return new RSVP.Promise(function(resolve, reject) {\n            $.getJSON(`/${type.modelName}/${id}`).then(function(data) {\n              resolve(data);\n            }, function(jqXHR) {\n              reject(jqXHR);\n            });\n          });\n        }\n      });\n      ```\n       @method findRecord\n      @param {Store} store\n      @param {Model} type\n      @param {String} id\n      @param {Snapshot} snapshot\n      @return {Promise} promise\n    */\n    findRecord: null,\n\n    /**\n      The `findAll()` method is used to retrieve all records for a given type.\n       Example\n       ```app/adapters/application.js\n      import Adapter from '@ember-data/adapter';\n      import RSVP from 'RSVP';\n      import $ from 'jquery';\n       export default Adapter.extend({\n        findAll(store, type) {\n          return new RSVP.Promise(function(resolve, reject) {\n            $.getJSON(`/${type.modelName}`).then(function(data) {\n              resolve(data);\n            }, function(jqXHR) {\n              reject(jqXHR);\n            });\n          });\n        }\n      });\n      ```\n       @method findAll\n      @param {Store} store\n      @param {Model} type\n      @param {undefined} neverSet a value is never provided to this argument\n      @param {SnapshotRecordArray} snapshotRecordArray\n      @return {Promise} promise\n    */\n    findAll: null,\n\n    /**\n      This method is called when you call `query` on the store.\n       Example\n       ```app/adapters/application.js\n      import Adapter from '@ember-data/adapter';\n      import RSVP from 'RSVP';\n      import $ from 'jquery';\n       export default Adapter.extend({\n        query(store, type, query) {\n          return new RSVP.Promise(function(resolve, reject) {\n            $.getJSON(`/${type.modelName}`, query).then(function(data) {\n              resolve(data);\n            }, function(jqXHR) {\n              reject(jqXHR);\n            });\n          });\n        }\n      });\n      ```\n       @method query\n      @param {Store} store\n      @param {Model} type\n      @param {Object} query\n      @param {AdapterPopulatedRecordArray} recordArray\n      @return {Promise} promise\n    */\n    query: null,\n\n    /**\n      The `queryRecord()` method is invoked when the store is asked for a single\n      record through a query object.\n       In response to `queryRecord()` being called, you should always fetch fresh\n      data. Once found, you can asynchronously call the store's `push()` method\n      to push the record into the store.\n       Here is an example `queryRecord` implementation:\n       Example\n       ```app/adapters/application.js\n      import Adapter, { BuildURLMixin } from '@ember-data/adapter';\n      import RSVP from 'RSVP';\n      import $ from 'jquery';\n       export default Adapter.extend(BuildURLMixin, {\n        queryRecord(store, type, query) {\n          return new RSVP.Promise(function(resolve, reject) {\n            $.getJSON(`/${type.modelName}`, query).then(function(data) {\n              resolve(data);\n            }, function(jqXHR) {\n              reject(jqXHR);\n            });\n          });\n        }\n      });\n      ```\n       @method queryRecord\n      @param {Store} store\n      @param {subclass of Model} type\n      @param {Object} query\n      @return {Promise} promise\n    */\n    queryRecord: null,\n\n    /**\n      If the globally unique IDs for your records should be generated on the client,\n      implement the `generateIdForRecord()` method. This method will be invoked\n      each time you create a new record, and the value returned from it will be\n      assigned to the record's `primaryKey`.\n       Most traditional REST-like HTTP APIs will not use this method. Instead, the ID\n      of the record will be set by the server, and your adapter will update the store\n      with the new ID when it calls `didCreateRecord()`. Only implement this method if\n      you intend to generate record IDs on the client-side.\n       The `generateIdForRecord()` method will be invoked with the requesting store as\n      the first parameter and the newly created record as the second parameter:\n       ```javascript\n      import Adapter from '@ember-data/adapter';\n      import { v4 } from 'uuid';\n       export default Adapter.extend({\n        generateIdForRecord(store, type, inputProperties) {\n          return v4();\n        }\n      });\n      ```\n       @method generateIdForRecord\n      @param {Store} store\n      @param {Model} type   the Model class of the record\n      @param {Object} inputProperties a hash of properties to set on the\n        newly created record.\n      @return {(String|Number)} id\n    */\n    generateIdForRecord: null,\n\n    /**\n      Proxies to the serializer's `serialize` method.\n       Example\n       ```app/adapters/application.js\n      import Adapter from '@ember-data/adapter';\n       export default Adapter.extend({\n        createRecord(store, type, snapshot) {\n          let data = this.serialize(snapshot, { includeId: true });\n          let url = `/${type.modelName}`;\n           // ...\n        }\n      });\n      ```\n       @method serialize\n      @param {Snapshot} snapshot\n      @param {Object}   options\n      @return {Object} serialized snapshot\n    */\n    serialize(snapshot, options) {\n      return snapshot.serialize(options);\n    },\n\n    /**\n      Implement this method in a subclass to handle the creation of\n      new records.\n       Serializes the record and sends it to the server.\n       Example\n       ```app/adapters/application.js\n      import Adapter from '@ember-data/adapter';\n      import { run } from '@ember/runloop';\n      import RSVP from 'RSVP';\n      import $ from 'jquery';\n       export default Adapter.extend({\n        createRecord(store, type, snapshot) {\n          let data = this.serialize(snapshot, { includeId: true });\n           return new RSVP.Promise(function(resolve, reject) {\n            $.ajax({\n              type: 'POST',\n              url: `/${type.modelName}`,\n              dataType: 'json',\n              data: data\n            }).then(function(data) {\n              run(null, resolve, data);\n            }, function(jqXHR) {\n              jqXHR.then = null; // tame jQuery's ill mannered promises\n              run(null, reject, jqXHR);\n            });\n          });\n        }\n      });\n      ```\n       @method createRecord\n      @param {Store} store\n      @param {Model} type   the Model class of the record\n      @param {Snapshot} snapshot\n      @return {Promise} promise\n    */\n    createRecord: null,\n\n    /**\n      Implement this method in a subclass to handle the updating of\n      a record.\n       Serializes the record update and sends it to the server.\n       The updateRecord method is expected to return a promise that will\n      resolve with the serialized record. This allows the backend to\n      inform the Ember Data store the current state of this record after\n      the update. If it is not possible to return a serialized record\n      the updateRecord promise can also resolve with `undefined` and the\n      Ember Data store will assume all of the updates were successfully\n      applied on the backend.\n       Example\n       ```app/adapters/application.js\n      import Adapter from '@ember-data/adapter';\n      import { run } from '@ember/runloop';\n      import RSVP from 'RSVP';\n      import $ from 'jquery';\n       export default Adapter.extend({\n        updateRecord(store, type, snapshot) {\n          let data = this.serialize(snapshot, { includeId: true });\n          let id = snapshot.id;\n           return new RSVP.Promise(function(resolve, reject) {\n            $.ajax({\n              type: 'PUT',\n              url: `/${type.modelName}/${id}`,\n              dataType: 'json',\n              data: data\n            }).then(function(data) {\n              run(null, resolve, data);\n            }, function(jqXHR) {\n              jqXHR.then = null; // tame jQuery's ill mannered promises\n              run(null, reject, jqXHR);\n            });\n          });\n        }\n      });\n      ```\n       @method updateRecord\n      @param {Store} store\n      @param {Model} type   the Model class of the record\n      @param {Snapshot} snapshot\n      @return {Promise} promise\n    */\n    updateRecord: null,\n\n    /**\n      Implement this method in a subclass to handle the deletion of\n      a record.\n       Sends a delete request for the record to the server.\n       Example\n       ```app/adapters/application.js\n      import Adapter from '@ember-data/adapter';\n      import { run } from '@ember/runloop';\n      import RSVP from 'RSVP';\n      import $ from 'jquery';\n       export default Adapter.extend({\n        deleteRecord(store, type, snapshot) {\n          let data = this.serialize(snapshot, { includeId: true });\n          let id = snapshot.id;\n           return new RSVP.Promise(function(resolve, reject) {\n            $.ajax({\n              type: 'DELETE',\n              url: `/${type.modelName}/${id}`,\n              dataType: 'json',\n              data: data\n            }).then(function(data) {\n              run(null, resolve, data);\n            }, function(jqXHR) {\n              jqXHR.then = null; // tame jQuery's ill mannered promises\n              run(null, reject, jqXHR);\n            });\n          });\n        }\n      });\n      ```\n       @method deleteRecord\n      @param {Store} store\n      @param {Model} type   the Model class of the record\n      @param {Snapshot} snapshot\n      @return {Promise} promise\n    */\n    deleteRecord: null,\n\n    /**\n      By default the store will try to coalesce all `fetchRecord` calls within the same runloop\n      into as few requests as possible by calling groupRecordsForFindMany and passing it into a findMany call.\n      You can opt out of this behaviour by either not implementing the findMany hook or by setting\n      coalesceFindRequests to false.\n       @property coalesceFindRequests\n      @type {boolean}\n    */\n    coalesceFindRequests: true,\n\n    /**\n      The store will call `findMany` instead of multiple `findRecord`\n      requests to find multiple records at once if coalesceFindRequests\n      is true.\n       ```app/adapters/application.js\n      import Adapter from '@ember-data/adapter';\n      import { run } from '@ember/runloop';\n      import RSVP from 'RSVP';\n      import $ from 'jquery';\n       export default Adapter.extend({\n        findMany(store, type, ids, snapshots) {\n          return new RSVP.Promise(function(resolve, reject) {\n            $.ajax({\n              type: 'GET',\n              url: `/${type.modelName}/`,\n              dataType: 'json',\n              data: { filter: { id: ids.join(',') } }\n            }).then(function(data) {\n              run(null, resolve, data);\n            }, function(jqXHR) {\n              jqXHR.then = null; // tame jQuery's ill mannered promises\n              run(null, reject, jqXHR);\n            });\n          });\n        }\n      });\n      ```\n       @method findMany\n      @param {Store} store\n      @param {Model} type   the Model class of the records\n      @param {Array}    ids\n      @param {Array} snapshots\n      @return {Promise} promise\n    */\n    findMany: null,\n\n    /**\n      Organize records into groups, each of which is to be passed to separate\n      calls to `findMany`.\n       For example, if your API has nested URLs that depend on the parent, you will\n      want to group records by their parent.\n       The default implementation returns the records as a single group.\n       @method groupRecordsForFindMany\n      @param {Store} store\n      @param {Array} snapshots\n      @return {Array}  an array of arrays of records, each of which is to be\n                        loaded separately by `findMany`.\n    */\n    groupRecordsForFindMany(store, snapshots) {\n      return [snapshots];\n    },\n\n    /**\n      This method is used by the store to determine if the store should\n      reload a record from the adapter when a record is requested by\n      `store.findRecord`.\n       If this method returns `true`, the store will re-fetch a record from\n      the adapter. If this method returns `false`, the store will resolve\n      immediately using the cached record.\n       For example, if you are building an events ticketing system, in which users\n      can only reserve tickets for 20 minutes at a time, and want to ensure that\n      in each route you have data that is no more than 20 minutes old you could\n      write:\n       ```javascript\n      shouldReloadRecord(store, ticketSnapshot) {\n        let lastAccessedAt = ticketSnapshot.attr('lastAccessedAt');\n        let timeDiff = moment().diff(lastAccessedAt, 'minutes');\n         if (timeDiff > 20) {\n          return true;\n        } else {\n          return false;\n        }\n      }\n      ```\n       This method would ensure that whenever you do `store.findRecord('ticket',\n      id)` you will always get a ticket that is no more than 20 minutes old. In\n      case the cached version is more than 20 minutes old, `findRecord` will not\n      resolve until you fetched the latest version.\n       By default this hook returns `false`, as most UIs should not block user\n      interactions while waiting on data update.\n       Note that, with default settings, `shouldBackgroundReloadRecord` will always\n      re-fetch the records in the background even if `shouldReloadRecord` returns\n      `false`. You can override `shouldBackgroundReloadRecord` if this does not\n      suit your use case.\n       @since 1.13.0\n      @method shouldReloadRecord\n      @param {Store} store\n      @param {Snapshot} snapshot\n      @return {Boolean}\n    */\n    shouldReloadRecord(store, snapshot) {\n      return false;\n    },\n\n    /**\n      This method is used by the store to determine if the store should\n      reload all records from the adapter when records are requested by\n      `store.findAll`.\n       If this method returns `true`, the store will re-fetch all records from\n      the adapter. If this method returns `false`, the store will resolve\n      immediately using the cached records.\n       For example, if you are building an events ticketing system, in which users\n      can only reserve tickets for 20 minutes at a time, and want to ensure that\n      in each route you have data that is no more than 20 minutes old you could\n      write:\n       ```javascript\n      shouldReloadAll(store, snapshotArray) {\n        let snapshots = snapshotArray.snapshots();\n         return snapshots.any((ticketSnapshot) => {\n          let lastAccessedAt = ticketSnapshot.attr('lastAccessedAt');\n          let timeDiff = moment().diff(lastAccessedAt, 'minutes');\n           if (timeDiff > 20) {\n            return true;\n          } else {\n            return false;\n          }\n        });\n      }\n      ```\n       This method would ensure that whenever you do `store.findAll('ticket')` you\n      will always get a list of tickets that are no more than 20 minutes old. In\n      case a cached version is more than 20 minutes old, `findAll` will not\n      resolve until you fetched the latest versions.\n       By default, this method returns `true` if the passed `snapshotRecordArray`\n      is empty (meaning that there are no records locally available yet),\n      otherwise, it returns `false`.\n       Note that, with default settings, `shouldBackgroundReloadAll` will always\n      re-fetch all the records in the background even if `shouldReloadAll` returns\n      `false`. You can override `shouldBackgroundReloadAll` if this does not suit\n      your use case.\n       @since 1.13.0\n      @method shouldReloadAll\n      @param {Store} store\n      @param {SnapshotRecordArray} snapshotRecordArray\n      @return {Boolean}\n    */\n    shouldReloadAll(store, snapshotRecordArray) {\n      return !snapshotRecordArray.length;\n    },\n\n    /**\n      This method is used by the store to determine if the store should\n      reload a record after the `store.findRecord` method resolves a\n      cached record.\n       This method is *only* checked by the store when the store is\n      returning a cached record.\n       If this method returns `true` the store will re-fetch a record from\n      the adapter.\n       For example, if you do not want to fetch complex data over a mobile\n      connection, or if the network is down, you can implement\n      `shouldBackgroundReloadRecord` as follows:\n       ```javascript\n      shouldBackgroundReloadRecord(store, snapshot) {\n        let { downlink, effectiveType } = navigator.connection;\n         return downlink > 0 && effectiveType === '4g';\n      }\n      ```\n       By default, this hook returns `true` so the data for the record is updated\n      in the background.\n       @since 1.13.0\n      @method shouldBackgroundReloadRecord\n      @param {Store} store\n      @param {Snapshot} snapshot\n      @return {Boolean}\n    */\n    shouldBackgroundReloadRecord(store, snapshot) {\n      return true;\n    },\n\n    /**\n      This method is used by the store to determine if the store should\n      reload a record array after the `store.findAll` method resolves\n      with a cached record array.\n       This method is *only* checked by the store when the store is\n      returning a cached record array.\n       If this method returns `true` the store will re-fetch all records\n      from the adapter.\n       For example, if you do not want to fetch complex data over a mobile\n      connection, or if the network is down, you can implement\n      `shouldBackgroundReloadAll` as follows:\n       ```javascript\n      shouldBackgroundReloadAll(store, snapshotArray) {\n        let { downlink, effectiveType } = navigator.connection;\n         return downlink > 0 && effectiveType === '4g';\n      }\n      ```\n       By default this method returns `true`, indicating that a background reload\n      should always be triggered.\n       @since 1.13.0\n      @method shouldBackgroundReloadAll\n      @param {Store} store\n      @param {SnapshotRecordArray} snapshotRecordArray\n      @return {Boolean}\n    */\n    shouldBackgroundReloadAll(store, snapshotRecordArray) {\n      return true;\n    }\n\n  });\n\n  _exports.default = _default;\n});","define(\"@ember-data/adapter/json-api\", [\"exports\", \"ember-inflector\", \"@ember-data/adapter/-private\", \"@ember-data/adapter/rest\"], function (_exports, _emberInflector, _private, _rest) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n    The `JSONAPIAdapter` is the default adapter used by Ember Data. It\n    is responsible for transforming the store's requests into HTTP\n    requests that follow the [JSON API](http://jsonapi.org/format/)\n    format.\n  \n    ## JSON API Conventions\n  \n    The JSONAPIAdapter uses JSON API conventions for building the URL\n    for a record and selecting the HTTP verb to use with a request. The\n    actions you can take on a record map onto the following URLs in the\n    JSON API adapter:\n  \n  <table>\n    <tr>\n      <th>\n        Action\n      </th>\n      <th>\n        HTTP Verb\n      </th>\n      <th>\n        URL\n      </th>\n    </tr>\n    <tr>\n      <th>\n        `store.findRecord('post', 123)`\n      </th>\n      <td>\n        GET\n      </td>\n      <td>\n        /posts/123\n      </td>\n    </tr>\n    <tr>\n      <th>\n        `store.findAll('post')`\n      </th>\n      <td>\n        GET\n      </td>\n      <td>\n        /posts\n      </td>\n    </tr>\n    <tr>\n      <th>\n        Update `postRecord.save()`\n      </th>\n      <td>\n        PATCH\n      </td>\n      <td>\n        /posts/123\n      </td>\n    </tr>\n    <tr>\n      <th>\n        Create `store.createRecord('post').save()`\n      </th>\n      <td>\n        POST\n      </td>\n      <td>\n        /posts\n      </td>\n    </tr>\n    <tr>\n      <th>\n        Delete `postRecord.destroyRecord()`\n      </th>\n      <td>\n        DELETE\n      </td>\n      <td>\n        /posts/123\n      </td>\n    </tr>\n  </table>\n  \n    ## Success and failure\n  \n    The JSONAPIAdapter will consider a success any response with a\n    status code of the 2xx family (\"Success\"), as well as 304 (\"Not\n    Modified\"). Any other status code will be considered a failure.\n  \n    On success, the request promise will be resolved with the full\n    response payload.\n  \n    Failed responses with status code 422 (\"Unprocessable Entity\") will\n    be considered \"invalid\". The response will be discarded, except for\n    the `errors` key. The request promise will be rejected with a\n    `InvalidError`. This error object will encapsulate the saved\n    `errors` value.\n  \n    Any other status codes will be treated as an adapter error. The\n    request promise will be rejected, similarly to the invalid case,\n    but with an instance of `AdapterError` instead.\n  \n    ### Endpoint path customization\n  \n    Endpoint paths can be prefixed with a `namespace` by setting the\n    namespace property on the adapter:\n  \n    ```app/adapters/application.js\n    import JSONAPIAdapter from '@ember-data/adapter/json-api';\n  \n    export default JSONAPIAdapter.extend({\n      namespace: 'api/1'\n    });\n    ```\n    Requests for the `person` model would now target `/api/1/people/1`.\n  \n    ### Host customization\n  \n    An adapter can target other hosts by setting the `host` property.\n  \n    ```app/adapters/application.js\n    import JSONAPIAdapter from '@ember-data/adapter/json-api';\n  \n    export default JSONAPIAdapter.extend({\n      host: 'https://api.example.com'\n    });\n    ```\n  \n    Requests for the `person` model would now target\n    `https://api.example.com/people/1`.\n  \n    @since 1.13.0\n    @class JSONAPIAdapter\n    @constructor\n    @extends RESTAdapter\n  */\n  var JSONAPIAdapter = _rest.default.extend({\n    defaultSerializer: '-json-api',\n    _defaultContentType: 'application/vnd.api+json',\n\n    /**\n      @method ajaxOptions\n      @private\n      @param {String} url\n      @param {String} type The request type GET, POST, PUT, DELETE etc.\n      @param {Object} options\n      @return {Object}\n    */\n    ajaxOptions(url, type, options = {}) {\n      var hash = this._super(url, type, options);\n\n      hash.headers['Accept'] = hash.headers['Accept'] || 'application/vnd.api+json';\n      return hash;\n    },\n\n    /**\n      By default the JSONAPIAdapter will send each find request coming from a `store.find`\n      or from accessing a relationship separately to the server. If your server supports passing\n      ids as a query string, you can set coalesceFindRequests to true to coalesce all find requests\n      within a single runloop.\n       For example, if you have an initial payload of:\n       ```javascript\n      {\n        data: {\n          id: 1,\n          type: 'post',\n          relationship: {\n            comments: {\n              data: [\n                { id: 1, type: 'comment' },\n                { id: 2, type: 'comment' }\n              ]\n            }\n          }\n        }\n      }\n      ```\n       By default calling `post.get('comments')` will trigger the following requests(assuming the\n      comments haven't been loaded before):\n       ```\n      GET /comments/1\n      GET /comments/2\n      ```\n       If you set coalesceFindRequests to `true` it will instead trigger the following request:\n       ```\n      GET /comments?filter[id]=1,2\n      ```\n       Setting coalesceFindRequests to `true` also works for `store.find` requests and `belongsTo`\n      relationships accessed within the same runloop. If you set `coalesceFindRequests: true`\n       ```javascript\n      store.findRecord('comment', 1);\n      store.findRecord('comment', 2);\n      ```\n       will also send a request to: `GET /comments?filter[id]=1,2`\n       Note: Requests coalescing rely on URL building strategy. So if you override `buildURL` in your app\n      `groupRecordsForFindMany` more likely should be overridden as well in order for coalescing to work.\n       @property coalesceFindRequests\n      @type {boolean}\n    */\n    coalesceFindRequests: false,\n\n    findMany(store, type, ids, snapshots) {\n      var url = this.buildURL(type.modelName, ids, snapshots, 'findMany');\n      return this.ajax(url, 'GET', {\n        data: {\n          filter: {\n            id: ids.join(',')\n          }\n        }\n      });\n    },\n\n    pathForType(modelName) {\n      var dasherized = Ember.String.dasherize(modelName);\n      return (0, _emberInflector.pluralize)(dasherized);\n    },\n\n    updateRecord(store, type, snapshot) {\n      var data = (0, _private.serializeIntoHash)(store, type, snapshot);\n      var url = this.buildURL(type.modelName, snapshot.id, snapshot, 'updateRecord');\n      return this.ajax(url, 'PATCH', {\n        data: data\n      });\n    }\n\n  });\n\n  var _default = JSONAPIAdapter;\n  _exports.default = _default;\n});","define(\"@ember-data/adapter/rest\", [\"exports\", \"@ember-data/adapter\", \"@ember-data/adapter/error\", \"@ember-data/adapter/-private\"], function (_exports, _adapter, _error, _private) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.fetchOptions = fetchOptions;\n  _exports.default = void 0;\n  var hasJQuery = typeof jQuery !== 'undefined';\n  var hasNajax = typeof najax !== 'undefined';\n  /**\n    The REST adapter allows your store to communicate with an HTTP server by\n    transmitting JSON via XHR. Most Ember.js apps that consume a JSON API\n    should use the REST adapter.\n  \n    This adapter is designed around the idea that the JSON exchanged with\n    the server should be conventional.\n  \n    ## Success and failure\n  \n    The REST adapter will consider a success any response with a status code\n    of the 2xx family (\"Success\"), as well as 304 (\"Not Modified\"). Any other\n    status code will be considered a failure.\n  \n    On success, the request promise will be resolved with the full response\n    payload.\n  \n    Failed responses with status code 422 (\"Unprocessable Entity\") will be\n    considered \"invalid\". The response will be discarded, except for the\n    `errors` key. The request promise will be rejected with a `InvalidError`.\n    This error object will encapsulate the saved `errors` value.\n  \n    Any other status codes will be treated as an \"adapter error\". The request\n    promise will be rejected, similarly to the \"invalid\" case, but with\n    an instance of `AdapterError` instead.\n  \n    ## JSON Structure\n  \n    The REST adapter expects the JSON returned from your server to follow\n    these conventions.\n  \n    ### Object Root\n  \n    The JSON payload should be an object that contains the record inside a\n    root property. For example, in response to a `GET` request for\n    `/posts/1`, the JSON should look like this:\n  \n    ```js\n    {\n      \"posts\": {\n        \"id\": 1,\n        \"title\": \"I'm Running to Reform the W3C's Tag\",\n        \"author\": \"Yehuda Katz\"\n      }\n    }\n    ```\n  \n    Similarly, in response to a `GET` request for `/posts`, the JSON should\n    look like this:\n  \n    ```js\n    {\n      \"posts\": [\n        {\n          \"id\": 1,\n          \"title\": \"I'm Running to Reform the W3C's Tag\",\n          \"author\": \"Yehuda Katz\"\n        },\n        {\n          \"id\": 2,\n          \"title\": \"Rails is omakase\",\n          \"author\": \"D2H\"\n        }\n      ]\n    }\n    ```\n  \n    Note that the object root can be pluralized for both a single-object response\n    and an array response: the REST adapter is not strict on this. Further, if the\n    HTTP server responds to a `GET` request to `/posts/1` (e.g. the response to a\n    `findRecord` query) with more than one object in the array, Ember Data will\n    only display the object with the matching ID.\n  \n    ### Conventional Names\n  \n    Attribute names in your JSON payload should be the camelCased versions of\n    the attributes in your Ember.js models.\n  \n    For example, if you have a `Person` model:\n  \n    ```app/models/person.js\n    import Model, { attr } from '@ember-data/model';\n  \n    export default Model.extend({\n      firstName: attr('string'),\n      lastName: attr('string'),\n      occupation: attr('string')\n    });\n    ```\n  \n    The JSON returned should look like this:\n  \n    ```js\n    {\n      \"people\": {\n        \"id\": 5,\n        \"firstName\": \"Zaphod\",\n        \"lastName\": \"Beeblebrox\",\n        \"occupation\": \"President\"\n      }\n    }\n    ```\n  \n    #### Relationships\n  \n    Relationships are usually represented by ids to the record in the\n    relationship. The related records can then be sideloaded in the\n    response under a key for the type.\n  \n    ```js\n    {\n      \"posts\": {\n        \"id\": 5,\n        \"title\": \"I'm Running to Reform the W3C's Tag\",\n        \"author\": \"Yehuda Katz\",\n        \"comments\": [1, 2]\n      },\n      \"comments\": [{\n        \"id\": 1,\n        \"author\": \"User 1\",\n        \"message\": \"First!\",\n      }, {\n        \"id\": 2,\n        \"author\": \"User 2\",\n        \"message\": \"Good Luck!\",\n      }]\n    }\n    ```\n  \n    If the records in the relationship are not known when the response\n    is serialized it's also possible to represent the relationship as a\n    URL using the `links` key in the response. Ember Data will fetch\n    this URL to resolve the relationship when it is accessed for the\n    first time.\n  \n    ```js\n    {\n      \"posts\": {\n        \"id\": 5,\n        \"title\": \"I'm Running to Reform the W3C's Tag\",\n        \"author\": \"Yehuda Katz\",\n        \"links\": {\n          \"comments\": \"/posts/5/comments\"\n        }\n      }\n    }\n    ```\n  \n    ### Errors\n  \n    If a response is considered a failure, the JSON payload is expected to include\n    a top-level key `errors`, detailing any specific issues. For example:\n  \n    ```js\n    {\n      \"errors\": {\n        \"msg\": \"Something went wrong\"\n      }\n    }\n    ```\n  \n    This adapter does not make any assumptions as to the format of the `errors`\n    object. It will simply be passed along as is, wrapped in an instance\n    of `InvalidError` or `AdapterError`. The serializer can interpret it\n    afterwards.\n  \n    ## Customization\n  \n    ### Endpoint path customization\n  \n    Endpoint paths can be prefixed with a `namespace` by setting the namespace\n    property on the adapter:\n  \n    ```app/adapters/application.js\n    import RESTAdapter from '@ember-data/adapter/rest';\n  \n    export default RESTAdapter.extend({\n      namespace: 'api/1'\n    });\n    ```\n    Requests for the `Person` model would now target `/api/1/people/1`.\n  \n    ### Host customization\n  \n    An adapter can target other hosts by setting the `host` property.\n  \n    ```app/adapters/application.js\n    import RESTAdapter from '@ember-data/adapter/rest';\n  \n    export default RESTAdapter.extend({\n      host: 'https://api.example.com'\n    });\n    ```\n  \n    ### Headers customization\n  \n    Some APIs require HTTP headers, e.g. to provide an API key. Arbitrary\n    headers can be set as key/value pairs on the `RESTAdapter`'s `headers`\n    object and Ember Data will send them along with each ajax request.\n  \n  \n    ```app/adapters/application.js\n    import RESTAdapter from '@ember-data/adapter/rest';\n    import { computed } from '@ember/object';\n  \n    export default RESTAdapter.extend({\n      headers: computed(function() {\n        return {\n          'API_KEY': 'secret key',\n          'ANOTHER_HEADER': 'Some header value'\n        };\n      }\n    });\n    ```\n  \n    `headers` can also be used as a computed property to support dynamic\n    headers. In the example below, the `session` object has been\n    injected into an adapter by Ember's container.\n  \n    ```app/adapters/application.js\n    import RESTAdapter from '@ember-data/adapter/rest';\n    import { computed } from '@ember/object';\n  \n    export default RESTAdapter.extend({\n      headers: computed('session.authToken', function() {\n        return {\n          'API_KEY': this.get('session.authToken'),\n          'ANOTHER_HEADER': 'Some header value'\n        };\n      })\n    });\n    ```\n  \n    In some cases, your dynamic headers may require data from some\n    object outside of Ember's observer system (for example\n    `document.cookie`). You can use the\n    [volatile](/api/classes/Ember.ComputedProperty.html?anchor=volatile)\n    function to set the property into a non-cached mode causing the headers to\n    be recomputed with every request.\n  \n    ```app/adapters/application.js\n    import RESTAdapter from '@ember-data/adapter/rest';\n    import { get } from '@ember/object';\n    import { computed } from '@ember/object';\n  \n    export default RESTAdapter.extend({\n      headers: computed(function() {\n        return {\n          'API_KEY': get(document.cookie.match(/apiKey\\=([^;]*)/), '1'),\n          'ANOTHER_HEADER': 'Some header value'\n        };\n      }).volatile()\n    });\n    ```\n  \n    @class RESTAdapter\n    @constructor\n    @extends Adapter\n    @uses BuildURLMixin\n  */\n\n  var RESTAdapter = _adapter.default.extend(_adapter.BuildURLMixin, {\n    defaultSerializer: '-rest',\n    _defaultContentType: 'application/json; charset=utf-8',\n    fastboot: Ember.computed({\n      // Avoid computed property override deprecation in fastboot as suggested by:\n      // https://deprecations.emberjs.com/v3.x/#toc_computed-property-override\n      get() {\n        if (this._fastboot) {\n          return this._fastboot;\n        }\n\n        return this._fastboot = Ember.getOwner(this).lookup('service:fastboot');\n      },\n\n      set(key, value) {\n        return this._fastboot = value;\n      }\n\n    }),\n    useFetch: Ember.computed(function () {\n      var ENV = Ember.getOwner(this).resolveRegistration('config:environment'); // TODO: https://github.com/emberjs/data/issues/6093\n\n      var jQueryIntegrationDisabled = ENV && ENV.EmberENV && ENV.EmberENV._JQUERY_INTEGRATION === false;\n\n      if (jQueryIntegrationDisabled) {\n        return true;\n      } else if (hasNajax || hasJQuery) {\n        return false;\n      } else {\n        return true;\n      }\n    }),\n\n    /**\n      By default, the RESTAdapter will send the query params sorted alphabetically to the\n      server.\n       For example:\n       ```js\n      store.query('posts', { sort: 'price', category: 'pets' });\n      ```\n       will generate a requests like this `/posts?category=pets&sort=price`, even if the\n      parameters were specified in a different order.\n       That way the generated URL will be deterministic and that simplifies caching mechanisms\n      in the backend.\n       Setting `sortQueryParams` to a falsey value will respect the original order.\n       In case you want to sort the query parameters with a different criteria, set\n      `sortQueryParams` to your custom sort function.\n       ```app/adapters/application.js\n      import RESTAdapter from '@ember-data/adapter/rest';\n       export default RESTAdapter.extend({\n        sortQueryParams(params) {\n          let sortedKeys = Object.keys(params).sort().reverse();\n          let len = sortedKeys.length, newParams = {};\n           for (let i = 0; i < len; i++) {\n            newParams[sortedKeys[i]] = params[sortedKeys[i]];\n          }\n           return newParams;\n        }\n      });\n      ```\n       @method sortQueryParams\n      @param {Object} obj\n      @return {Object}\n    */\n    sortQueryParams(obj) {\n      var keys = Object.keys(obj);\n      var len = keys.length;\n\n      if (len < 2) {\n        return obj;\n      }\n\n      var newQueryParams = {};\n      var sortedKeys = keys.sort();\n\n      for (var i = 0; i < len; i++) {\n        newQueryParams[sortedKeys[i]] = obj[sortedKeys[i]];\n      }\n\n      return newQueryParams;\n    },\n\n    /**\n      By default the RESTAdapter will send each find request coming from a `store.find`\n      or from accessing a relationship separately to the server. If your server supports passing\n      ids as a query string, you can set coalesceFindRequests to true to coalesce all find requests\n      within a single runloop.\n       For example, if you have an initial payload of:\n       ```javascript\n      {\n        post: {\n          id: 1,\n          comments: [1, 2]\n        }\n      }\n      ```\n       By default calling `post.get('comments')` will trigger the following requests(assuming the\n      comments haven't been loaded before):\n       ```\n      GET /comments/1\n      GET /comments/2\n      ```\n       If you set coalesceFindRequests to `true` it will instead trigger the following request:\n       ```\n      GET /comments?ids[]=1&ids[]=2\n      ```\n       Setting coalesceFindRequests to `true` also works for `store.find` requests and `belongsTo`\n      relationships accessed within the same runloop. If you set `coalesceFindRequests: true`\n       ```javascript\n      store.findRecord('comment', 1);\n      store.findRecord('comment', 2);\n      ```\n       will also send a request to: `GET /comments?ids[]=1&ids[]=2`\n       Note: Requests coalescing rely on URL building strategy. So if you override `buildURL` in your app\n      `groupRecordsForFindMany` more likely should be overridden as well in order for coalescing to work.\n       @property coalesceFindRequests\n      @type {boolean}\n    */\n    coalesceFindRequests: false,\n\n    /**\n      Endpoint paths can be prefixed with a `namespace` by setting the namespace\n      property on the adapter:\n       ```app/adapters/application.js\n      import RESTAdapter from '@ember-data/adapter/rest';\n       export default RESTAdapter.extend({\n        namespace: 'api/1'\n      });\n      ```\n       Requests for the `Post` model would now target `/api/1/post/`.\n       @property namespace\n      @type {String}\n    */\n\n    /**\n      An adapter can target other hosts by setting the `host` property.\n       ```app/adapters/application.js\n      import RESTAdapter from '@ember-data/adapter/rest';\n       export default RESTAdapter.extend({\n        host: 'https://api.example.com'\n      });\n      ```\n       Requests for the `Post` model would now target `https://api.example.com/post/`.\n       @property host\n      @type {String}\n    */\n\n    /**\n      Some APIs require HTTP headers, e.g. to provide an API\n      key. Arbitrary headers can be set as key/value pairs on the\n      `RESTAdapter`'s `headers` object and Ember Data will send them\n      along with each ajax request. For dynamic headers see [headers\n      customization](/ember-data/release/classes/RESTAdapter).\n       ```app/adapters/application.js\n      import RESTAdapter from '@ember-data/adapter/rest';\n      import { computed } from '@ember/object';\n       export default RESTAdapter.extend({\n        headers: computed(function() {\n          return {\n            'API_KEY': 'secret key',\n            'ANOTHER_HEADER': 'Some header value'\n          };\n        })\n      });\n      ```\n       @property headers\n      @type {Object}\n     */\n\n    /**\n      Called by the store in order to fetch the JSON for a given\n      type and ID.\n       The `findRecord` method makes an Ajax request to a URL computed by\n      `buildURL`, and returns a promise for the resulting payload.\n       This method performs an HTTP `GET` request with the id provided as part of the query string.\n       @since 1.13.0\n      @method findRecord\n      @param {Store} store\n      @param {Model} type\n      @param {String} id\n      @param {Snapshot} snapshot\n      @return {Promise} promise\n    */\n    findRecord(store, type, id, snapshot) {\n      var url = this.buildURL(type.modelName, id, snapshot, 'findRecord');\n      var query = this.buildQuery(snapshot);\n      return this.ajax(url, 'GET', {\n        data: query\n      });\n    },\n\n    /**\n      Called by the store in order to fetch a JSON array for all\n      of the records for a given type.\n       The `findAll` method makes an Ajax (HTTP GET) request to a URL computed by `buildURL`, and returns a\n      promise for the resulting payload.\n       @method findAll\n      @param {Store} store\n      @param {Model} type\n      @param {undefined} neverSet a value is never provided to this argument\n      @param {SnapshotRecordArray} snapshotRecordArray\n      @return {Promise} promise\n    */\n    findAll(store, type, sinceToken, snapshotRecordArray) {\n      var query = this.buildQuery(snapshotRecordArray);\n      var url = this.buildURL(type.modelName, null, snapshotRecordArray, 'findAll');\n\n      if (sinceToken) {\n        query.since = sinceToken;\n      }\n\n      return this.ajax(url, 'GET', {\n        data: query\n      });\n    },\n\n    /**\n      Called by the store in order to fetch a JSON array for\n      the records that match a particular query.\n       The `query` method makes an Ajax (HTTP GET) request to a URL\n      computed by `buildURL`, and returns a promise for the resulting\n      payload.\n       The `query` argument is a simple JavaScript object that will be passed directly\n      to the server as parameters.\n       @method query\n      @param {Store} store\n      @param {Model} type\n      @param {Object} query\n      @return {Promise} promise\n    */\n    query(store, type, query) {\n      var url = this.buildURL(type.modelName, null, null, 'query', query);\n\n      if (this.sortQueryParams) {\n        query = this.sortQueryParams(query);\n      }\n\n      return this.ajax(url, 'GET', {\n        data: query\n      });\n    },\n\n    /**\n      Called by the store in order to fetch a JSON object for\n      the record that matches a particular query.\n       The `queryRecord` method makes an Ajax (HTTP GET) request to a URL\n      computed by `buildURL`, and returns a promise for the resulting\n      payload.\n       The `query` argument is a simple JavaScript object that will be passed directly\n      to the server as parameters.\n       @since 1.13.0\n      @method queryRecord\n      @param {Store} store\n      @param {Model} type\n      @param {Object} query\n      @return {Promise} promise\n    */\n    queryRecord(store, type, query) {\n      var url = this.buildURL(type.modelName, null, null, 'queryRecord', query);\n\n      if (this.sortQueryParams) {\n        query = this.sortQueryParams(query);\n      }\n\n      return this.ajax(url, 'GET', {\n        data: query\n      });\n    },\n\n    /**\n      Called by the store in order to fetch several records together if `coalesceFindRequests` is true\n       For example, if the original payload looks like:\n       ```js\n      {\n        \"id\": 1,\n        \"title\": \"Rails is omakase\",\n        \"comments\": [ 1, 2, 3 ]\n      }\n      ```\n       The IDs will be passed as a URL-encoded Array of IDs, in this form:\n       ```\n      ids[]=1&ids[]=2&ids[]=3\n      ```\n       Many servers, such as Rails and PHP, will automatically convert this URL-encoded array\n      into an Array for you on the server-side. If you want to encode the\n      IDs, differently, just override this (one-line) method.\n       The `findMany` method makes an Ajax (HTTP GET) request to a URL computed by `buildURL`, and returns a\n      promise for the resulting payload.\n       @method findMany\n      @param {Store} store\n      @param {Model} type\n      @param {Array} ids\n      @param {Array} snapshots\n      @return {Promise} promise\n    */\n    findMany(store, type, ids, snapshots) {\n      var url = this.buildURL(type.modelName, ids, snapshots, 'findMany');\n      return this.ajax(url, 'GET', {\n        data: {\n          ids: ids\n        }\n      });\n    },\n\n    /**\n      Called by the store in order to fetch a JSON array for\n      the unloaded records in a has-many relationship that were originally\n      specified as a URL (inside of `links`).\n       For example, if your original payload looks like this:\n       ```js\n      {\n        \"post\": {\n          \"id\": 1,\n          \"title\": \"Rails is omakase\",\n          \"links\": { \"comments\": \"/posts/1/comments\" }\n        }\n      }\n      ```\n       This method will be called with the parent record and `/posts/1/comments`.\n       The `findHasMany` method will make an Ajax (HTTP GET) request to the originally specified URL.\n       The format of your `links` value will influence the final request URL via the `urlPrefix` method:\n       * Links beginning with `//`, `http://`, `https://`, will be used as is, with no further manipulation.\n       * Links beginning with a single `/` will have the current adapter's `host` value prepended to it.\n       * Links with no beginning `/` will have a parentURL prepended to it, via the current adapter's `buildURL`.\n       @method findHasMany\n      @param {Store} store\n      @param {Snapshot} snapshot\n      @param {String} url\n      @param {Object} relationship meta object describing the relationship\n      @return {Promise} promise\n    */\n    findHasMany(store, snapshot, url, relationship) {\n      var id = snapshot.id;\n      var type = snapshot.modelName;\n      url = this.urlPrefix(url, this.buildURL(type, id, snapshot, 'findHasMany'));\n      return this.ajax(url, 'GET');\n    },\n\n    /**\n      Called by the store in order to fetch the JSON for the unloaded record in a\n      belongs-to relationship that was originally specified as a URL (inside of\n      `links`).\n       For example, if your original payload looks like this:\n       ```js\n      {\n        \"person\": {\n          \"id\": 1,\n          \"name\": \"Tom Dale\",\n          \"links\": { \"group\": \"/people/1/group\" }\n        }\n      }\n      ```\n       This method will be called with the parent record and `/people/1/group`.\n       The `findBelongsTo` method will make an Ajax (HTTP GET) request to the originally specified URL.\n       The format of your `links` value will influence the final request URL via the `urlPrefix` method:\n       * Links beginning with `//`, `http://`, `https://`, will be used as is, with no further manipulation.\n       * Links beginning with a single `/` will have the current adapter's `host` value prepended to it.\n       * Links with no beginning `/` will have a parentURL prepended to it, via the current adapter's `buildURL`.\n       @method findBelongsTo\n      @param {Store} store\n      @param {Snapshot} snapshot\n      @param {String} url\n      @param {Object} relationship meta object describing the relationship\n      @return {Promise} promise\n    */\n    findBelongsTo(store, snapshot, url, relationship) {\n      var id = snapshot.id;\n      var type = snapshot.modelName;\n      url = this.urlPrefix(url, this.buildURL(type, id, snapshot, 'findBelongsTo'));\n      return this.ajax(url, 'GET');\n    },\n\n    /**\n      Called by the store when a newly created record is\n      saved via the `save` method on a model record instance.\n       The `createRecord` method serializes the record and makes an Ajax (HTTP POST) request\n      to a URL computed by `buildURL`.\n       See `serialize` for information on how to customize the serialized form\n      of a record.\n       @method createRecord\n      @param {Store} store\n      @param {Model} type\n      @param {Snapshot} snapshot\n      @return {Promise} promise\n    */\n    createRecord(store, type, snapshot) {\n      var url = this.buildURL(type.modelName, null, snapshot, 'createRecord');\n      var data = (0, _private.serializeIntoHash)(store, type, snapshot);\n      return this.ajax(url, 'POST', {\n        data\n      });\n    },\n\n    /**\n      Called by the store when an existing record is saved\n      via the `save` method on a model record instance.\n       The `updateRecord` method serializes the record and makes an Ajax (HTTP PUT) request\n      to a URL computed by `buildURL`.\n       See `serialize` for information on how to customize the serialized form\n      of a record.\n       @method updateRecord\n      @param {Store} store\n      @param {Model} type\n      @param {Snapshot} snapshot\n      @return {Promise} promise\n    */\n    updateRecord(store, type, snapshot) {\n      var data = (0, _private.serializeIntoHash)(store, type, snapshot, {});\n      var id = snapshot.id;\n      var url = this.buildURL(type.modelName, id, snapshot, 'updateRecord');\n      return this.ajax(url, 'PUT', {\n        data\n      });\n    },\n\n    /**\n      Called by the store when a record is deleted.\n       The `deleteRecord` method  makes an Ajax (HTTP DELETE) request to a URL computed by `buildURL`.\n       @method deleteRecord\n      @param {Store} store\n      @param {Model} type\n      @param {Snapshot} snapshot\n      @return {Promise} promise\n    */\n    deleteRecord(store, type, snapshot) {\n      var id = snapshot.id;\n      return this.ajax(this.buildURL(type.modelName, id, snapshot, 'deleteRecord'), 'DELETE');\n    },\n\n    _stripIDFromURL(store, snapshot) {\n      var url = this.buildURL(snapshot.modelName, snapshot.id, snapshot);\n      var expandedURL = url.split('/'); // Case when the url is of the format ...something/:id\n      // We are decodeURIComponent-ing the lastSegment because if it represents\n      // the id, it has been encodeURIComponent-ified within `buildURL`. If we\n      // don't do this, then records with id having special characters are not\n      // coalesced correctly (see GH #4190 for the reported bug)\n\n      var lastSegment = expandedURL[expandedURL.length - 1];\n      var id = snapshot.id;\n\n      if (decodeURIComponent(lastSegment) === id) {\n        expandedURL[expandedURL.length - 1] = '';\n      } else if (endsWith(lastSegment, '?id=' + id)) {\n        //Case when the url is of the format ...something?id=:id\n        expandedURL[expandedURL.length - 1] = lastSegment.substring(0, lastSegment.length - id.length - 1);\n      }\n\n      return expandedURL.join('/');\n    },\n\n    // http://stackoverflow.com/questions/417142/what-is-the-maximum-length-of-a-url-in-different-browsers\n    maxURLLength: 2048,\n\n    /**\n      Organize records into groups, each of which is to be passed to separate\n      calls to `findMany`.\n       This implementation groups together records that have the same base URL but\n      differing ids. For example `/comments/1` and `/comments/2` will be grouped together\n      because we know findMany can coalesce them together as `/comments?ids[]=1&ids[]=2`\n       It also supports urls where ids are passed as a query param, such as `/comments?id=1`\n      but not those where there is more than 1 query param such as `/comments?id=2&name=David`\n      Currently only the query param of `id` is supported. If you need to support others, please\n      override this or the `_stripIDFromURL` method.\n       It does not group records that have differing base urls, such as for example: `/posts/1/comments/2`\n      and `/posts/2/comments/3`\n       @method groupRecordsForFindMany\n      @param {Store} store\n      @param {Array} snapshots\n      @return {Array}  an array of arrays of records, each of which is to be\n                        loaded separately by `findMany`.\n    */\n    groupRecordsForFindMany(store, snapshots) {\n      var groups = new Map();\n      var adapter = this;\n      var maxURLLength = this.maxURLLength;\n      snapshots.forEach(snapshot => {\n        var baseUrl = adapter._stripIDFromURL(store, snapshot);\n\n        if (!groups.has(baseUrl)) {\n          groups.set(baseUrl, []);\n        }\n\n        groups.get(baseUrl).push(snapshot);\n      });\n\n      function splitGroupToFitInUrl(group, maxURLLength, paramNameLength) {\n        var idsSize = 0;\n\n        var baseUrl = adapter._stripIDFromURL(store, group[0]);\n\n        var splitGroups = [[]];\n        group.forEach(snapshot => {\n          var additionalLength = encodeURIComponent(snapshot.id).length + paramNameLength;\n\n          if (baseUrl.length + idsSize + additionalLength >= maxURLLength) {\n            idsSize = 0;\n            splitGroups.push([]);\n          }\n\n          idsSize += additionalLength;\n          var lastGroupIndex = splitGroups.length - 1;\n          splitGroups[lastGroupIndex].push(snapshot);\n        });\n        return splitGroups;\n      }\n\n      var groupsArray = [];\n      groups.forEach((group, key) => {\n        var paramNameLength = '&ids%5B%5D='.length;\n        var splitGroups = splitGroupToFitInUrl(group, maxURLLength, paramNameLength);\n        splitGroups.forEach(splitGroup => groupsArray.push(splitGroup));\n      });\n      return groupsArray;\n    },\n\n    /**\n      Takes an ajax response, and returns the json payload or an error.\n       By default this hook just returns the json payload passed to it.\n      You might want to override it in two cases:\n       1. Your API might return useful results in the response headers.\n      Response headers are passed in as the second argument.\n       2. Your API might return errors as successful responses with status code\n      200 and an Errors text or object. You can return a `InvalidError` or a\n      `AdapterError` (or a sub class) from this hook and it will automatically\n      reject the promise and put your record into the invalid or error state.\n       Returning a `InvalidError` from this method will cause the\n      record to transition into the `invalid` state and make the\n      `errors` object available on the record. When returning an\n      `InvalidError` the store will attempt to normalize the error data\n      returned from the server using the serializer's `extractErrors`\n      method.\n       @since 1.13.0\n      @method handleResponse\n      @param  {Number} status\n      @param  {Object} headers\n      @param  {Object} payload\n      @param  {Object} requestData - the original request information\n      @return {Object | AdapterError} response\n    */\n    handleResponse(status, headers, payload, requestData) {\n      if (this.isSuccess(status, headers, payload)) {\n        return payload;\n      } else if (this.isInvalid(status, headers, payload)) {\n        return new _error.InvalidError(payload.errors);\n      }\n\n      var errors = this.normalizeErrorResponse(status, headers, payload);\n      var detailedMessage = this.generatedDetailedMessage(status, headers, payload, requestData);\n\n      switch (status) {\n        case 401:\n          return new _error.UnauthorizedError(errors, detailedMessage);\n\n        case 403:\n          return new _error.ForbiddenError(errors, detailedMessage);\n\n        case 404:\n          return new _error.NotFoundError(errors, detailedMessage);\n\n        case 409:\n          return new _error.ConflictError(errors, detailedMessage);\n\n        default:\n          if (status >= 500) {\n            return new _error.ServerError(errors, detailedMessage);\n          }\n\n      }\n\n      return new _error.default(errors, detailedMessage);\n    },\n\n    /**\n      Default `handleResponse` implementation uses this hook to decide if the\n      response is a success.\n       @since 1.13.0\n      @method isSuccess\n      @param  {Number} status\n      @param  {Object} headers\n      @param  {Object} payload\n      @return {Boolean}\n    */\n    isSuccess(status, headers, payload) {\n      return status >= 200 && status < 300 || status === 304;\n    },\n\n    /**\n      Default `handleResponse` implementation uses this hook to decide if the\n      response is an invalid error.\n       @since 1.13.0\n      @method isInvalid\n      @param  {Number} status\n      @param  {Object} headers\n      @param  {Object} payload\n      @return {Boolean}\n    */\n    isInvalid(status, headers, payload) {\n      return status === 422;\n    },\n\n    /**\n      Takes a URL, an HTTP method and a hash of data, and makes an\n      HTTP request.\n       When the server responds with a payload, Ember Data will call into `extractSingle`\n      or `extractArray` (depending on whether the original query was for one record or\n      many records).\n       By default, `ajax` method has the following behavior:\n       * It sets the response `dataType` to `\"json\"`\n      * If the HTTP method is not `\"GET\"`, it sets the `Content-Type` to be\n        `application/json; charset=utf-8`\n      * If the HTTP method is not `\"GET\"`, it stringifies the data passed in. The\n        data is the serialized record in the case of a save.\n      * Registers success and failure handlers.\n       @method ajax\n      @private\n      @param {String} url\n      @param {String} type The request type GET, POST, PUT, DELETE etc.\n      @param {Object} options\n      @return {Promise} promise\n    */\n    ajax(url, type, options) {\n      var adapter = this;\n      var useFetch = Ember.get(this, 'useFetch');\n      var requestData = {\n        url: url,\n        method: type\n      };\n      var hash = adapter.ajaxOptions(url, type, options);\n\n      if (useFetch) {\n        var _response;\n\n        return this._fetchRequest(hash).then(response => {\n          _response = response;\n          return (0, _private.determineBodyPromise)(response, requestData);\n        }).then(payload => {\n          if (_response.ok && !(payload instanceof Error)) {\n            return fetchSuccessHandler(adapter, payload, _response, requestData);\n          } else {\n            throw fetchErrorHandler(adapter, payload, _response, null, requestData);\n          }\n        });\n      }\n\n      return new Ember.RSVP.Promise(function (resolve, reject) {\n        hash.success = function (payload, textStatus, jqXHR) {\n          var response = ajaxSuccessHandler(adapter, payload, jqXHR, requestData);\n          Ember.run.join(null, resolve, response);\n        };\n\n        hash.error = function (jqXHR, textStatus, errorThrown) {\n          var error = ajaxErrorHandler(adapter, jqXHR, errorThrown, requestData);\n          Ember.run.join(null, reject, error);\n        };\n\n        adapter._ajax(hash);\n      }, 'DS: RESTAdapter#ajax ' + type + ' to ' + url);\n    },\n\n    /**\n      @method _ajaxRequest\n      @private\n      @param {Object} options jQuery ajax options to be used for the ajax request\n    */\n    _ajaxRequest(options) {\n      jQuery.ajax(options);\n    },\n\n    /**\n      @method _najaxRequest\n      @private\n      @param {Object} options jQuery ajax options to be used for the najax request\n    */\n    _najaxRequest(options) {\n      if (hasNajax) {\n        najax(options);\n      } else {\n        throw new Error('najax does not seem to be defined in your app. Did you override it via `addOrOverrideSandboxGlobals` in the fastboot server?');\n      }\n    },\n\n    _fetchRequest(options) {\n      var fetchFunction = (0, _private.fetch)();\n\n      if (fetchFunction) {\n        return fetchFunction(options.url, options);\n      } else {\n        throw new Error('cannot find the `fetch` module or the `fetch` global. Did you mean to install the `ember-fetch` addon?');\n      }\n    },\n\n    _ajax(options) {\n      if (Ember.get(this, 'useFetch')) {\n        this._fetchRequest(options);\n      } else if (Ember.get(this, 'fastboot.isFastBoot')) {\n        this._najaxRequest(options);\n      } else {\n        this._ajaxRequest(options);\n      }\n    },\n\n    /**\n      @method ajaxOptions\n      @private\n      @param {String} url\n      @param {String} type The request type GET, POST, PUT, DELETE etc.\n      @param {Object} options\n      @return {Object}\n    */\n    ajaxOptions(url, method, options) {\n      options = Ember.assign({\n        url,\n        method,\n        type: method\n      }, options);\n      var headers = Ember.get(this, 'headers');\n\n      if (headers !== undefined) {\n        options.headers = Ember.assign({}, headers, options.headers);\n      } else if (!options.headers) {\n        options.headers = {};\n      }\n\n      var contentType = options.contentType || this._defaultContentType;\n\n      if (Ember.get(this, 'useFetch')) {\n        if (options.data && options.type !== 'GET') {\n          if (!options.headers['Content-Type'] && !options.headers['content-type']) {\n            options.headers['content-type'] = contentType;\n          }\n        }\n\n        options = fetchOptions(options, this);\n      } else {\n        // GET requests without a body should not have a content-type header\n        // and may be unexpected by a server\n        if (options.data && options.type !== 'GET') {\n          options = Ember.assign(options, {\n            contentType\n          });\n        }\n\n        options = ajaxOptions(options, this);\n      }\n\n      options.url = this._ajaxURL(options.url);\n      return options;\n    },\n\n    _ajaxURL(url) {\n      if (Ember.get(this, 'fastboot.isFastBoot')) {\n        var httpRegex = /^https?:\\/\\//;\n        var protocolRelativeRegex = /^\\/\\//;\n        var protocol = Ember.get(this, 'fastboot.request.protocol');\n        var host = Ember.get(this, 'fastboot.request.host');\n\n        if (protocolRelativeRegex.test(url)) {\n          return `${protocol}${url}`;\n        } else if (!httpRegex.test(url)) {\n          try {\n            return `${protocol}//${host}${url}`;\n          } catch (fbError) {\n            throw new Error('You are using Ember Data with no host defined in your adapter. This will attempt to use the host of the FastBoot request, which is not configured for the current host of this request. Please set the hostWhitelist property for in your environment.js. FastBoot Error: ' + fbError.message);\n          }\n        }\n      }\n\n      return url;\n    },\n\n    /**\n      @method parseErrorResponse\n      @private\n      @param {String} responseText\n      @return {Object}\n    */\n    parseErrorResponse(responseText) {\n      var json = responseText;\n\n      try {\n        json = JSON.parse(responseText);\n      } catch (e) {// ignored\n      }\n\n      return json;\n    },\n\n    /**\n      @method normalizeErrorResponse\n      @private\n      @param  {Number} status\n      @param  {Object} headers\n      @param  {Object} payload\n      @return {Array} errors payload\n    */\n    normalizeErrorResponse(status, headers, payload) {\n      if (payload && typeof payload === 'object' && payload.errors) {\n        return payload.errors;\n      } else {\n        return [{\n          status: `${status}`,\n          title: 'The backend responded with an error',\n          detail: `${payload}`\n        }];\n      }\n    },\n\n    /**\n      Generates a detailed (\"friendly\") error message, with plenty\n      of information for debugging (good luck!)\n       @method generatedDetailedMessage\n      @private\n      @param  {Number} status\n      @param  {Object} headers\n      @param  {Object} payload\n      @param  {Object} requestData\n      @return {String} detailed error message\n    */\n    generatedDetailedMessage: function (status, headers, payload, requestData) {\n      var shortenedPayload;\n      var payloadContentType = headers['content-type'] || 'Empty Content-Type';\n\n      if (payloadContentType === 'text/html' && payload.length > 250) {\n        shortenedPayload = '[Omitted Lengthy HTML]';\n      } else {\n        shortenedPayload = payload;\n      }\n\n      var requestDescription = requestData.method + ' ' + requestData.url;\n      var payloadDescription = 'Payload (' + payloadContentType + ')';\n      return ['Ember Data Request ' + requestDescription + ' returned a ' + status, payloadDescription, shortenedPayload].join('\\n');\n    },\n\n    // @since 2.5.0\n    buildQuery(snapshot) {\n      var query = {};\n\n      if (snapshot) {\n        var {\n          include\n        } = snapshot;\n\n        if (include) {\n          query.include = include;\n        }\n      }\n\n      return query;\n    }\n\n  });\n\n  function ajaxSuccess(adapter, payload, requestData, responseData) {\n    var response;\n\n    try {\n      response = adapter.handleResponse(responseData.status, responseData.headers, payload, requestData);\n    } catch (error) {\n      return Ember.RSVP.Promise.reject(error);\n    }\n\n    if (response && response.isAdapterError) {\n      return Ember.RSVP.Promise.reject(response);\n    } else {\n      return response;\n    }\n  }\n\n  function ajaxError(adapter, payload, requestData, responseData) {\n    var error;\n\n    if (responseData.errorThrown instanceof Error && payload !== '') {\n      error = responseData.errorThrown;\n    } else if (responseData.textStatus === 'timeout') {\n      error = new _error.TimeoutError();\n    } else if (responseData.textStatus === 'abort' || responseData.status === 0) {\n      error = handleAbort(requestData, responseData);\n    } else {\n      try {\n        error = adapter.handleResponse(responseData.status, responseData.headers, payload || responseData.errorThrown, requestData);\n      } catch (e) {\n        error = e;\n      }\n    }\n\n    return error;\n  } // Adapter abort error to include any relevent info, e.g. request/response:\n\n\n  function handleAbort(requestData, responseData) {\n    var {\n      method,\n      url,\n      errorThrown\n    } = requestData;\n    var {\n      status\n    } = responseData;\n    var msg = `Request failed: ${method} ${url} ${errorThrown || ''}`;\n    var errors = [{\n      title: 'Adapter Error',\n      detail: msg.trim(),\n      status\n    }];\n    return new _error.AbortError(errors);\n  } //From http://stackoverflow.com/questions/280634/endswith-in-javascript\n\n\n  function endsWith(string, suffix) {\n    if (typeof String.prototype.endsWith !== 'function') {\n      return string.indexOf(suffix, string.length - suffix.length) !== -1;\n    } else {\n      return string.endsWith(suffix);\n    }\n  }\n\n  function fetchSuccessHandler(adapter, payload, response, requestData) {\n    var responseData = fetchResponseData(response);\n    return ajaxSuccess(adapter, payload, requestData, responseData);\n  }\n\n  function fetchErrorHandler(adapter, payload, response, errorThrown, requestData) {\n    var responseData = fetchResponseData(response);\n\n    if (responseData.status === 200 && payload instanceof Error) {\n      responseData.errorThrown = payload;\n      payload = responseData.errorThrown.payload;\n    } else {\n      responseData.errorThrown = errorThrown;\n      payload = adapter.parseErrorResponse(payload);\n    }\n\n    return ajaxError(adapter, payload, requestData, responseData);\n  }\n\n  function ajaxSuccessHandler(adapter, payload, jqXHR, requestData) {\n    var responseData = ajaxResponseData(jqXHR);\n    return ajaxSuccess(adapter, payload, requestData, responseData);\n  }\n\n  function ajaxErrorHandler(adapter, jqXHR, errorThrown, requestData) {\n    var responseData = ajaxResponseData(jqXHR);\n    responseData.errorThrown = errorThrown;\n    var payload = adapter.parseErrorResponse(jqXHR.responseText);\n\n    if (true\n    /* DEBUG */\n    ) {\n      var message = `The server returned an empty string for ${requestData.method} ${requestData.url}, which cannot be parsed into a valid JSON. Return either null or {}.`;\n      var validJSONString = !(responseData.textStatus === 'parsererror' && payload === '');\n      (true && Ember.warn(message, validJSONString, {\n        id: 'ds.adapter.returned-empty-string-as-JSON'\n      }));\n    }\n\n    return ajaxError(adapter, payload, requestData, responseData);\n  }\n\n  function fetchResponseData(response) {\n    return {\n      status: response.status,\n      textStatus: response.textStatus,\n      headers: headersToObject(response.headers)\n    };\n  }\n\n  function ajaxResponseData(jqXHR) {\n    return {\n      status: jqXHR.status,\n      textStatus: jqXHR.statusText,\n      headers: (0, _private.parseResponseHeaders)(jqXHR.getAllResponseHeaders())\n    };\n  }\n\n  function headersToObject(headers) {\n    var headersObject = {};\n\n    if (headers) {\n      headers.forEach((value, key) => headersObject[key] = value);\n    }\n\n    return headersObject;\n  }\n  /**\n   * Helper function that translates the options passed to `jQuery.ajax` into a format that `fetch` expects.\n   * @param {Object} _options\n   * @param {Adapter} adapter\n   * @returns {Object}\n   */\n\n\n  function fetchOptions(options, adapter) {\n    options.credentials = 'same-origin';\n\n    if (options.data) {\n      // GET and HEAD requests can't have a `body`\n      if (options.method === 'GET' || options.method === 'HEAD') {\n        // If no options are passed, Ember Data sets `data` to an empty object, which we test for.\n        if (Object.keys(options.data).length) {\n          // Test if there are already query params in the url (mimics jQuey.ajax).\n          var queryParamDelimiter = options.url.indexOf('?') > -1 ? '&' : '?';\n          options.url += `${queryParamDelimiter}${(0, _private.serializeQueryParams)(options.data)}`;\n        }\n      } else {\n        // NOTE: a request's body cannot be an object, so we stringify it if it is.\n        // JSON.stringify removes keys with values of `undefined` (mimics jQuery.ajax).\n        // If the data is not a POJO (it's a String, FormData, etc), we just set it.\n        // If the data is a string, we assume it's a stringified object.\n\n        /* We check for Objects this way because we want the logic inside the consequent to run\n         * if `options.data` is a POJO, not if it is a data structure whose `typeof` returns \"object\"\n         * when it's not (Array, FormData, etc). The reason we don't use `options.data.constructor`\n         * to check is in case `data` is an object with no prototype (e.g. created with null).\n         */\n        if (Object.prototype.toString.call(options.data) === '[object Object]') {\n          options.body = JSON.stringify(options.data);\n        } else {\n          options.body = options.data;\n        }\n      }\n    }\n\n    return options;\n  }\n\n  function ajaxOptions(options, adapter) {\n    options.dataType = 'json';\n    options.context = adapter;\n\n    if (options.data && options.type !== 'GET') {\n      options.data = JSON.stringify(options.data);\n    }\n\n    options.beforeSend = function (xhr) {\n      Object.keys(options.headers).forEach(key => xhr.setRequestHeader(key, options.headers[key]));\n    };\n\n    return options;\n  }\n\n  var _default = RESTAdapter;\n  _exports.default = _default;\n});","define(\"@ember-data/canary-features/default-features\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n   * ## Canary Features\n   *\n   * EmberData allows users to test features that are implemented but not yet\n   * available even in canary.\n   *\n   * Typically these features represent work that might introduce a new concept,\n   * new API, change an API, or risk an unintended change in behavior to consuming\n   * applications.\n   *\n   * Such features have their implementations guarded by a \"feature flag\", and the\n   * flag is only activated once the core-data team is prepared to ship the work\n   * in a canary release.\n   *\n   * ### Installing Canary\n   *\n   * To test a feature you MUST be using a canary build. Canary builds are published\n   * to `npm` and can be installed using a precise tag (such as `ember-data@3.16.0-alpha.1`)\n   * or by installing the latest dist-tag published to the `canary` channel.\n   *\n   * *Using `npm` to install the latest canary*\n   *\n   * ```cli\n   * npm install --save-dev ember-data@canary\n   * ```\n   *\n   * *Using `yarn` to install the latest canary*\n   *\n   * ```cli\n   * yarn add ember-data@canary\n   * ```\n   *\n   * ### Activating a Canary Feature\n   *\n   * Once you have installed canary, feature-flags can be activated at build-time by an environment\n   * variable or at runtime using `window.EmberDataENV`.\n   *\n   * The \"off\" branch of feature-flagged code is always stripped from production builds, so you\n   * MUST use the build-time environment variable to activate a flag if testing production.\n   *\n   * The list of available feature-flags is located [here](https://github.com/emberjs/data/tree/master/packages/canary-features/addon/default-features.ts \"List of EmberData FeatureFlags\")\n   *\n   * #### Runtime Configuration\n   *\n   * To configure feature-flags at runtime you will want to configure `window.EmberDataENV = {}` appropriately.\n   * You should add this global property in your app prior to your application booting. At the top of\n   * your `app.js` file is a convenient location, as is within ` index.html` as a script running prior\n   * to loading any other scripts.\n   *\n   * *Example activating a single feature flags*\n   *\n   * ```js\n   * window.EmberDataENV = {\n   *   FEATURES: {\n   *     RECORD_DATA_ERRORS: true,\n   *   }\n   * }\n   * ```\n   *\n   * *Example activating multiple feature flags*\n   *\n   * ```js\n   * window.EmberDataENV = {\n   *   FEATURES: {\n   *     RECORD_DATA_ERRORS: true,\n   *     RECORD_DATA_STATE: true,\n   *   }\n   * }\n   * ```\n   *\n   * *Example activating all feature flags*\n   *\n   * ```js\n   * window.EmberDataENV = {\n   *   ENABLE_OPTIONAL_FEATURES: true\n   * }\n   * ```\n   *\n   * #### Build Time Configuration\n   *\n   * *Example activating a single feature flags*\n   *\n   * ```js\n   * EMBER_DATA_FEATURE_OVERRIDE=REQUEST_SERVICE ember build\n   * ```\n   *\n   * *Example activating multiple feature flags*\n   *\n   * ```js\n   * EMBER_DATA_FEATURE_OVERRIDE=REQUEST_SERVICE,CUSTOM_MODEL_CLASS ember build\n   * ```\n   *\n   * *Example activating all feature flags*\n   *\n   * ```js\n   * EMBER_DATA_FEATURE_OVERRIDE=ENABLE_ALL_OPTIONAL ember build\n   * ```\n   *\n   * ### Preparing an Addon to use a Canary Feature\n   *\n   * For most addons and most features simple version detection should be\n   * enough. Using the provided version compatibility helpers from\n   * [ember-compatibility-helpers](https://github.com/pzuraq/ember-compatibility-helpers)\n   * the following can be done:\n   *\n   * ```js\n   * if (gte('@ember-data/store', '3.12.0')) {\n   *\n   * } else {\n   *\n   * }\n   * ```\n   *\n   * For addons needing more advanced detection [babel-plugin-debug-macros](https://github.com/ember-cli/babel-plugin-debug-macros)\n   * can be leveraged to provide code-stripping based on feature presence. For example in your addon's `index.js`:\n   *\n   * ```js\n   * function debugMacros(features) {\n   *   let plugins = [\n   *     [\n   *       require.resolve('babel-plugin-debug-macros'),\n   *       {\n   *         flags: [\n   *           {\n   *             source: '<addon-name>/feature-flags',\n   *             flags: features,\n   *           },\n   *         ],\n   *       },\n   *       '<addon-name>/canary-features-stripping',\n   *     ],\n   *   ];\n   *\n   *   return plugins;\n   * }\n   *\n   * module.exports = {\n   *   name: '<addon-name>',\n   *\n   *   init() {\n   *     this._super.init.apply(this, arguments);\n   *\n   *     let features;\n   *     try {\n   *       features = this.project.require('@ember-data/private-build-infra/src/features')();\n   *     } catch (e) {\n   *       features = { CUSTOM_MODEL_CLASS: false };\n   *     }\n   *\n   *     this.options = this.options || {};\n   *     this.options.babel = this.options.babel || {};\n   *     // this ensures that the same `@ember-data/canary-features` processing that the various\n   *     // ember-data addons do is done for this addon\n   *     this.options.babel.plugins = [...debugMacros(features)];\n   *   }\n   * }\n   * ```\n   *\n   * @module @ember-data/canary-features\n   * @main @ember-data/canary-features\n   */\n\n  /*\n    This list of features is used both at build time (by `@ember-data/private-build-infra`)\n    and at runtime (by `@ember-data/canary-features`).\n  \n    The valid values are:\n  \n    - true - The feature is enabled at all times, and cannot be disabled.\n    - false - The feature is disabled at all times, and cannot be enabled.\n    - null - The feature is disabled by default, but can be enabled at runtime via `EmberDataENV`.\n  */\n  var _default = {\n    SAMPLE_FEATURE_FLAG: null,\n    RECORD_DATA_ERRORS: null,\n    RECORD_DATA_STATE: null,\n    IDENTIFIERS: true,\n    REQUEST_SERVICE: null,\n    CUSTOM_MODEL_CLASS: null,\n    FULL_LINKS_ON_RELATIONSHIPS: true\n  };\n  _exports.default = _default;\n});","define(\"@ember-data/canary-features/index\", [\"exports\", \"@ember-data/canary-features/default-features\"], function (_exports, _defaultFeatures) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.FULL_LINKS_ON_RELATIONSHIPS = _exports.CUSTOM_MODEL_CLASS = _exports.IDENTIFIERS = _exports.REQUEST_SERVICE = _exports.RECORD_DATA_STATE = _exports.RECORD_DATA_ERRORS = _exports.SAMPLE_FEATURE_FLAG = _exports.FEATURES = void 0;\n  const ENV = typeof EmberDataENV !== 'undefined' && EmberDataENV !== null ? EmberDataENV : {};\n\n  function featureValue(value) {\n    if (ENV.ENABLE_OPTIONAL_FEATURES && value === null) {\n      return true;\n    }\n\n    return value;\n  }\n\n  const FEATURES = Ember.assign({}, _defaultFeatures.default, ENV.FEATURES);\n  _exports.FEATURES = FEATURES;\n  const SAMPLE_FEATURE_FLAG = featureValue(FEATURES.SAMPLE_FEATURE_FLAG);\n  _exports.SAMPLE_FEATURE_FLAG = SAMPLE_FEATURE_FLAG;\n  const RECORD_DATA_ERRORS = featureValue(FEATURES.RECORD_DATA_ERRORS);\n  _exports.RECORD_DATA_ERRORS = RECORD_DATA_ERRORS;\n  const RECORD_DATA_STATE = featureValue(FEATURES.RECORD_DATA_STATE);\n  _exports.RECORD_DATA_STATE = RECORD_DATA_STATE;\n  const REQUEST_SERVICE = featureValue(FEATURES.REQUEST_SERVICE);\n  _exports.REQUEST_SERVICE = REQUEST_SERVICE;\n  const IDENTIFIERS = featureValue(FEATURES.IDENTIFIERS);\n  _exports.IDENTIFIERS = IDENTIFIERS;\n  const CUSTOM_MODEL_CLASS = featureValue(FEATURES.CUSTOM_MODEL_CLASS);\n  _exports.CUSTOM_MODEL_CLASS = CUSTOM_MODEL_CLASS;\n  const FULL_LINKS_ON_RELATIONSHIPS = featureValue(FEATURES.FULL_LINKS_ON_RELATIONSHIPS);\n  _exports.FULL_LINKS_ON_RELATIONSHIPS = FULL_LINKS_ON_RELATIONSHIPS;\n});","define(\"@ember-data/debug/index\", [\"exports\", \"@ember-data/debug/setup\"], function (_exports, _setup) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n    Implements `@ember/debug/data-adapter` with for EmberData\n    integration with the ember-inspector.\n  \n    @class InspectorDataAdapter\n    @extends DataAdapter\n    @private\n  */\n  var _default = Ember.DataAdapter.extend({\n    store: Ember.inject.service('store'),\n\n    /**\n      Specifies how records can be filtered based on the state of the record\n      Records returned will need to have a `filterValues`\n      property with a key for every name in the returned array\n       @method getFilters\n      @private\n      @return {Array} List of objects defining filters\n       The object should have a `name` and `desc` property\n    */\n    getFilters() {\n      return [{\n        name: 'isNew',\n        desc: 'New'\n      }, {\n        name: 'isModified',\n        desc: 'Modified'\n      }, {\n        name: 'isClean',\n        desc: 'Clean'\n      }];\n    },\n\n    _nameToClass(type) {\n      return Ember.get(this, 'store').modelFor(type);\n    },\n\n    /**\n      Fetch the model types and observe them for changes.\n      Maintains the list of model types without needing the Model package for detection.\n       @method watchModelTypes\n      @public\n      @param {Function} typesAdded Callback to call to add types.\n      Takes an array of objects containing wrapped types (returned from `wrapModelType`).\n      @param {Function} typesUpdated Callback to call when a type has changed.\n      Takes an array of objects containing wrapped types.\n      @return {Function} Method to call to remove all observers\n    */\n    watchModelTypes(typesAdded, typesUpdated) {\n      var store = Ember.get(this, 'store');\n      var __createRecordData = store._createRecordData;\n      var _releaseMethods = [];\n      var discoveredTypes = (0, _setup.typesMapFor)(store); // Add any models that were added during initialization of the app, before the inspector was opened\n\n      discoveredTypes.forEach((_, type) => {\n        this.watchTypeIfUnseen(store, discoveredTypes, type, typesAdded, typesUpdated, _releaseMethods);\n      }); // Overwrite _createRecordData so newly added models will get added to the list\n\n      store._createRecordData = identifier => {\n        this.watchTypeIfUnseen(store, discoveredTypes, identifier.type, typesAdded, typesUpdated, _releaseMethods);\n        return __createRecordData.call(store, identifier);\n      };\n\n      var release = () => {\n        _releaseMethods.forEach(fn => fn());\n\n        store._createRecordData = __createRecordData; // reset the list so the models can be added if the inspector is re-opened\n        // the entries are set to false instead of removed, since the models still exist in the app\n        // we just need the inspector to become aware of them\n\n        discoveredTypes.forEach((value, key) => {\n          discoveredTypes.set(key, false);\n        });\n        this.releaseMethods.removeObject(release);\n      };\n\n      this.releaseMethods.pushObject(release);\n      return release;\n    },\n\n    /**\n     * Loop over the discovered types and use the callbacks from watchModelTypes to notify\n     * the consumer of this adapter about the mdoels.\n     *\n     * @param {store} store\n     * @internal\n     * @param {Map} discoveredTypes\n     * @param {String} type\n     * @param {Function} typesAdded\n     * @param {Function} typesUpdated\n     * @param {Array} releaseMethods\n     */\n    watchTypeIfUnseen(store, discoveredTypes, type, typesAdded, typesUpdated, releaseMethods) {\n      if (discoveredTypes.get(type) !== true) {\n        var klass = store.modelFor(type);\n        var wrapped = this.wrapModelType(klass, type);\n        releaseMethods.push(this.observeModelType(type, typesUpdated));\n        typesAdded([wrapped]);\n        discoveredTypes.set(type, true);\n      }\n    },\n\n    /**\n      Creates a human readable string used for column headers\n       @method columnNameToDesc\n      @private\n      @param {String} name The attribute name\n      @return {String} Human readable string based on the attribute name\n    */\n    columnNameToDesc(name) {\n      return Ember.String.capitalize(Ember.String.underscore(name).replace(/_/g, ' ').trim());\n    },\n\n    /**\n      Get the columns for a given model type\n       @method columnsForType\n      @private\n      @param {Model} typeClass\n      @return {Array} An array of columns of the following format:\n       name: {String} The name of the column\n       desc: {String} Humanized description (what would show in a table column name)\n    */\n    columnsForType(typeClass) {\n      var columns = [{\n        name: 'id',\n        desc: 'Id'\n      }];\n      var count = 0;\n      var self = this;\n      Ember.get(typeClass, 'attributes').forEach((meta, name) => {\n        if (count++ > self.attributeLimit) {\n          return false;\n        }\n\n        var desc = this.columnNameToDesc(name);\n        columns.push({\n          name: name,\n          desc: desc\n        });\n      });\n      return columns;\n    },\n\n    /**\n      Fetches all loaded records for a given type\n       @method getRecords\n      @internal\n      @param {Model} modelClass of the record\n      @param {String} modelName of the record\n      @return {Array} An array of Model records\n       This array will be observed for changes,\n       so it should update when new records are added/removed\n    */\n    getRecords(modelClass, modelName) {\n      if (arguments.length < 2) {\n        // Legacy Ember.js < 1.13 support\n        var containerKey = modelClass._debugContainerKey;\n\n        if (containerKey) {\n          var match = containerKey.match(/model:(.*)/);\n\n          if (match !== null) {\n            modelName = match[1];\n          }\n        }\n      }\n\n      (true && !(!!modelName) && Ember.assert('Cannot find model name. Please upgrade to Ember.js >= 1.13 for Ember Inspector support', !!modelName));\n      return this.get('store').peekAll(modelName);\n    },\n\n    /**\n      Gets the values for each column\n      This is the attribute values for a given record\n       @method getRecordColumnValues\n      @private\n      @param {Model} record to get values from\n      @return {Object} Keys should match column names defined by the model type\n    */\n    getRecordColumnValues(record) {\n      var count = 0;\n      var columnValues = {\n        id: Ember.get(record, 'id')\n      };\n      record.eachAttribute(key => {\n        if (count++ > this.attributeLimit) {\n          return false;\n        }\n\n        columnValues[key] = Ember.get(record, key);\n      });\n      return columnValues;\n    },\n\n    /**\n      Returns keywords to match when searching records\n       @method getRecordKeywords\n      @private\n      @param {Model} record\n      @return {Array} Relevant keywords for search based on the record's attribute values\n    */\n    getRecordKeywords(record) {\n      var keywords = [];\n      var keys = Ember.A(['id']);\n      record.eachAttribute(key => keys.push(key));\n      keys.forEach(key => keywords.push(Ember.get(record, key)));\n      return keywords;\n    },\n\n    /**\n      Returns the values of filters defined by `getFilters`\n      These reflect the state of the record\n       @method getRecordFilterValues\n      @private\n      @param {Model} record\n      @return {Object} The record state filter values\n    */\n    getRecordFilterValues(record) {\n      return {\n        isNew: record.get('isNew'),\n        isModified: record.get('hasDirtyAttributes') && !record.get('isNew'),\n        isClean: !record.get('hasDirtyAttributes')\n      };\n    },\n\n    /**\n      Returns a color that represents the record's state\n      Possible colors: black, blue, green\n       @method getRecordColor\n      @private\n      @param {Model} record\n      @return {String} The record color\n    */\n    getRecordColor(record) {\n      var color = 'black';\n\n      if (record.get('isNew')) {\n        color = 'green';\n      } else if (record.get('hasDirtyAttributes')) {\n        color = 'blue';\n      }\n\n      return color;\n    },\n\n    /**\n      Observes all relevant properties and re-sends the wrapped record\n      when a change occurs\n       @method observeRecord\n      @internal\n      @param {Model} record\n      @param {Function} recordUpdated Callback used to notify changes\n      @return {Function} The function to call to remove all observers\n    */\n    observeRecord(record, recordUpdated) {\n      var releaseMethods = Ember.A();\n      var keysToObserve = Ember.A(['id', 'isNew', 'hasDirtyAttributes']);\n      record.eachAttribute(key => keysToObserve.push(key));\n      var adapter = this;\n      keysToObserve.forEach(function (key) {\n        var handler = function () {\n          recordUpdated(adapter.wrapRecord(record));\n        };\n\n        Ember.addObserver(record, key, handler);\n        releaseMethods.push(function () {\n          Ember.removeObserver(record, key, handler);\n        });\n      });\n\n      var release = function () {\n        releaseMethods.forEach(fn => fn());\n      };\n\n      return release;\n    }\n\n  });\n\n  _exports.default = _default;\n});","define(\"@ember-data/debug/setup\", [\"exports\", \"@ember-data/store\"], function (_exports, _store) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.typesMapFor = typesMapFor;\n  _exports.default = void 0;\n  var StoreTypesMap = new WeakMap();\n\n  function typesMapFor(store) {\n    var typesMap = StoreTypesMap.get(store);\n\n    if (typesMap === undefined) {\n      typesMap = new Map();\n      StoreTypesMap.set(store, typesMap);\n    }\n\n    return typesMap;\n  } // override _createRecordData to add the known models to the typesMap\n\n\n  var __createRecordData = _store.default.prototype._createRecordData;\n\n  _store.default.prototype._createRecordData = function (identifier) {\n    var typesMap = typesMapFor(this);\n\n    if (!typesMap.has(identifier.type)) {\n      typesMap.set(identifier.type, false);\n    }\n\n    return __createRecordData.call(this, identifier);\n  };\n\n  var _default = {\n    name: '@ember-data/data-adapter',\n\n    initialize() {}\n\n  };\n  _exports.default = _default;\n});","define('@ember-data/model/-private', ['exports', '@ember-data/store/-private', '@ember-data/store'], function (exports, Private, store) { 'use strict';\n\n  function isElementDescriptor(args) {\n    var [maybeTarget, maybeKey, maybeDesc] = args;\n    return (// Ensure we have the right number of args\n      args.length === 3 && ( // Make sure the target is a class or object (prototype)\n      typeof maybeTarget === 'function' || typeof maybeTarget === 'object' && maybeTarget !== null) && // Make sure the key is a string\n      typeof maybeKey === 'string' && ( // Make sure the descriptor is the right shape\n      typeof maybeDesc === 'object' && maybeDesc !== null && 'enumerable' in maybeDesc && 'configurable' in maybeDesc || // TS compatibility\n      maybeDesc === undefined)\n    );\n  }\n  function computedMacroWithOptionalParams(fn) {\n    {\n      return (...maybeDesc) => isElementDescriptor(maybeDesc) ? fn()(...maybeDesc) : fn(...maybeDesc);\n    }\n  }\n\n  /**\n    @module @ember-data/model\n  */\n\n  function getDefaultValue(record, options, key) {\n    if (typeof options.defaultValue === 'function') {\n      return options.defaultValue.apply(null, arguments);\n    } else {\n      var defaultValue = options.defaultValue;\n      ( !(typeof defaultValue !== 'object' || defaultValue === null) && Ember.assert(`Non primitive defaultValues are not supported because they are shared between all instances. If you would like to use a complex object as a default value please provide a function that returns the complex object.`, typeof defaultValue !== 'object' || defaultValue === null));\n      return defaultValue;\n    }\n  }\n\n  function hasValue(internalModel, key) {\n    return Private.recordDataFor(internalModel).hasAttr(key);\n  }\n  /**\n    `attr` defines an attribute on a [Model](/ember-data/release/classes/Model).\n    By default, attributes are passed through as-is, however you can specify an\n    optional type to have the value automatically transformed.\n    Ember Data ships with four basic transform types: `string`, `number`,\n    `boolean` and `date`. You can define your own transforms by subclassing\n    [Transform](/ember-data/release/classes/Transform).\n\n    Note that you cannot use `attr` to define an attribute of `id`.\n\n    `attr` takes an optional hash as a second parameter, currently\n    supported options are:\n\n    - `defaultValue`: Pass a string or a function to be called to set the attribute\n    to a default value if none is supplied.\n\n    Example\n\n    ```app/models/user.js\n    import Model, { attr } from '@ember-data/model';\n\n    export default Model.extend({\n      username: attr('string'),\n      email: attr('string'),\n      verified: attr('boolean', { defaultValue: false })\n    });\n    ```\n\n    Default value can also be a function. This is useful it you want to return\n    a new object for each attribute.\n\n    ```app/models/user.js\n    import Model, { attr } from '@ember-data/model';\n\n    export default Model.extend({\n      username: attr('string'),\n      email: attr('string'),\n      settings: attr({\n        defaultValue() {\n          return {};\n        }\n      })\n    });\n    ```\n\n    The `options` hash is passed as second argument to a transforms'\n    `serialize` and `deserialize` method. This allows to configure a\n    transformation and adapt the corresponding value, based on the config:\n\n    ```app/models/post.js\n    import Model, { attr } from '@ember-data/model';\n\n    export default Model.extend({\n      text: attr('text', {\n        uppercase: true\n      })\n    });\n    ```\n\n    ```app/transforms/text.js\n    import Transform from '@ember-data/serializer/transform';\n\n    export default Transform.extend({\n      serialize(value, options) {\n        if (options.uppercase) {\n          return value.toUpperCase();\n        }\n\n        return value;\n      },\n\n      deserialize(value) {\n        return value;\n      }\n    })\n    ```\n\n    @method attr\n    @public\n    @static\n    @for @ember-data/model\n    @param {String|Object} type the attribute type\n    @param {Object} options a hash of options\n    @return {Attribute}\n  */\n\n\n  function attr(type, options) {\n    if (typeof type === 'object') {\n      options = type;\n      type = undefined;\n    } else {\n      options = options || {};\n    }\n\n    var meta = {\n      type: type,\n      isAttribute: true,\n      kind: 'attribute',\n      options: options\n    };\n    return Ember.computed({\n      get(key) {\n        {\n          if (['_internalModel', 'recordData', 'currentState'].indexOf(key) !== -1) {\n            throw new Error(`'${key}' is a reserved property name on instances of classes extending Model. Please choose a different property name for your attr on ${this.constructor.toString()}`);\n          }\n        }\n\n        var internalModel = this._internalModel;\n\n        if (hasValue(internalModel, key)) {\n          return internalModel.getAttributeValue(key);\n        } else {\n          return getDefaultValue(this, options, key);\n        }\n      },\n\n      set(key, value) {\n        {\n          if (['_internalModel', 'recordData', 'currentState'].indexOf(key) !== -1) {\n            throw new Error(`'${key}' is a reserved property name on instances of classes extending Model. Please choose a different property name for your attr on ${this.constructor.toString()}`);\n          }\n        }\n\n        return this._internalModel.setDirtyAttribute(key, value);\n      }\n\n    }).meta(meta);\n  }\n\n  var attr$1 = computedMacroWithOptionalParams(attr);\n\n  /**\n    @module @ember-data/model\n  */\n\n  /**\n    `belongsTo` is used to define One-To-One and One-To-Many\n    relationships on a [Model](/ember-data/release/classes/Model).\n\n\n    `belongsTo` takes an optional hash as a second parameter, currently\n    supported options are:\n\n    - `async`: A boolean value used to explicitly declare this to be an async relationship. The default is true.\n    - `inverse`: A string used to identify the inverse property on a\n      related model in a One-To-Many relationship. See [Explicit Inverses](#explicit-inverses)\n    - `polymorphic` A boolean value to mark the relationship as polymorphic\n\n    #### One-To-One\n    To declare a one-to-one relationship between two models, use\n    `belongsTo`:\n\n    ```app/models/user.js\n    import Model, { belongsTo } from '@ember-data/model';\n\n    export default Model.extend({\n      profile: belongsTo('profile')\n    });\n    ```\n\n    ```app/models/profile.js\n    import Model, { belongsTo } from '@ember-data/model';\n\n    export default Model.extend({\n      user: belongsTo('user')\n    });\n    ```\n\n    #### One-To-Many\n    To declare a one-to-many relationship between two models, use\n    `belongsTo` in combination with `hasMany`, like this:\n\n    ```app/models/post.js\n    import Model, { hasMany } from '@ember-data/model';\n\n    export default Model.extend({\n      comments: hasMany('comment')\n    });\n    ```\n\n    ```app/models/comment.js\n    import Model, { belongsTo } from '@ember-data/model';\n\n    export default Model.extend({\n      post: belongsTo('post')\n    });\n    ```\n\n    You can avoid passing a string as the first parameter. In that case Ember Data\n    will infer the type from the key name.\n\n    ```app/models/comment.js\n    import Model, { belongsTo } from '@ember-data/model';\n\n    export default Model.extend({\n      post: belongsTo()\n    });\n    ```\n\n    will lookup for a Post type.\n\n    #### Sync relationships\n\n    Ember Data resolves sync relationships with the related resources\n    available in its local store, hence it is expected these resources\n    to be loaded before or along-side the primary resource.\n\n    ```app/models/comment.js\n    import Model, { belongsTo } from '@ember-data/model';\n\n    export default Model.extend({\n      post: belongsTo('post', {\n        async: false\n      })\n    });\n    ```\n\n    In contrast to async relationship, accessing a sync relationship\n    will always return the record (Model instance) for the existing\n    local resource, or null. But it will error on access when\n    a related resource is known to exist and it has not been loaded.\n\n    ```\n    let post = comment.get('post');\n\n    ```\n\n    @method belongsTo\n    @public\n    @static\n    @for @ember-data/model\n    @param {String} modelName (optional) type of the relationship\n    @param {Object} options (optional) a hash of options\n    @return {Ember.computed} relationship\n  */\n\n  function belongsTo(modelName, options) {\n    var opts, userEnteredModelName;\n\n    if (typeof modelName === 'object') {\n      opts = modelName;\n      userEnteredModelName = undefined;\n    } else {\n      opts = options;\n      userEnteredModelName = modelName;\n    }\n\n    if (typeof userEnteredModelName === 'string') {\n      userEnteredModelName = store.normalizeModelName(userEnteredModelName);\n    }\n\n    ( !(typeof userEnteredModelName === 'string' || typeof userEnteredModelName === 'undefined') && Ember.assert('The first argument to belongsTo must be a string representing a model type key, not an instance of ' + Ember.inspect(userEnteredModelName) + \". E.g., to define a relation to the Person model, use belongsTo('person')\", typeof userEnteredModelName === 'string' || typeof userEnteredModelName === 'undefined'));\n    opts = opts || {};\n    var meta = {\n      type: userEnteredModelName,\n      isRelationship: true,\n      options: opts,\n      kind: 'belongsTo',\n      name: 'Belongs To',\n      key: null\n    };\n    return Ember.computed({\n      get(key) {\n        {\n          if (['_internalModel', 'recordData', 'currentState'].indexOf(key) !== -1) {\n            throw new Error(`'${key}' is a reserved property name on instances of classes extending Model. Please choose a different property name for your belongsTo on ${this.constructor.toString()}`);\n          }\n\n          if (Object.prototype.hasOwnProperty.call(opts, 'serialize')) {\n            ( Ember.warn(`You provided a serialize option on the \"${key}\" property in the \"${this._internalModel.modelName}\" class, this belongs in the serializer. See Serializer and it's implementations https://api.emberjs.com/ember-data/release/classes/Serializer`, false, {\n              id: 'ds.model.serialize-option-in-belongs-to'\n            }));\n          }\n\n          if (Object.prototype.hasOwnProperty.call(opts, 'embedded')) {\n            ( Ember.warn(`You provided an embedded option on the \"${key}\" property in the \"${this._internalModel.modelName}\" class, this belongs in the serializer. See EmbeddedRecordsMixin https://api.emberjs.com/ember-data/release/classes/EmbeddedRecordsMixin`, false, {\n              id: 'ds.model.embedded-option-in-belongs-to'\n            }));\n          }\n        }\n\n        return this._internalModel.getBelongsTo(key);\n      },\n\n      set(key, value) {\n        {\n          if (['_internalModel', 'recordData', 'currentState'].indexOf(key) !== -1) {\n            throw new Error(`'${key}' is a reserved property name on instances of classes extending Model. Please choose a different property name for your belongsTo on ${this.constructor.toString()}`);\n          }\n        }\n\n        this._internalModel.setDirtyBelongsTo(key, value);\n\n        return this._internalModel.getBelongsTo(key);\n      }\n\n    }).meta(meta);\n  }\n\n  var belongsTo$1 = computedMacroWithOptionalParams(belongsTo);\n\n  /**\n    @module @ember-data/model\n  */\n  /**\n    `hasMany` is used to define One-To-Many and Many-To-Many\n    relationships on a [Model](/ember-data/release/classes/Model).\n\n    `hasMany` takes an optional hash as a second parameter, currently\n    supported options are:\n\n    - `async`: A boolean value used to explicitly declare this to be an async relationship. The default is true.\n    - `inverse`: A string used to identify the inverse property on a related model.\n    - `polymorphic` A boolean value to mark the relationship as polymorphic\n\n    #### One-To-Many\n    To declare a one-to-many relationship between two models, use\n    `belongsTo` in combination with `hasMany`, like this:\n\n    ```app/models/post.js\n    import Model, { hasMany } from '@ember-data/model';\n\n    export default Model.extend({\n      comments: hasMany('comment')\n    });\n    ```\n\n    ```app/models/comment.js\n    import Model, { belongsTo } from '@ember-data/model';\n\n    export default Model.extend({\n      post: belongsTo('post')\n    });\n    ```\n\n    #### Many-To-Many\n    To declare a many-to-many relationship between two models, use\n    `hasMany`:\n\n    ```app/models/post.js\n    import Model, { hasMany } from '@ember-data/model';\n\n    export default Model.extend({\n      tags: hasMany('tag')\n    });\n    ```\n\n    ```app/models/tag.js\n    import Model, { hasMany } from '@ember-data/model';\n\n    export default Model.extend({\n      posts: hasMany('post')\n    });\n    ```\n\n    You can avoid passing a string as the first parameter. In that case Ember Data\n    will infer the type from the singularized key name.\n\n    ```app/models/post.js\n    import Model, { hasMany } from '@ember-data/model';\n\n    export default Model.extend({\n      tags: hasMany()\n    });\n    ```\n\n    will lookup for a Tag type.\n\n    #### Explicit Inverses\n\n    Ember Data will do its best to discover which relationships map to\n    one another. In the one-to-many code above, for example, Ember Data\n    can figure out that changing the `comments` relationship should update\n    the `post` relationship on the inverse because post is the only\n    relationship to that model.\n\n    However, sometimes you may have multiple `belongsTo`/`hasMany` for the\n    same type. You can specify which property on the related model is\n    the inverse using `hasMany`'s `inverse` option:\n\n    ```app/models/comment.js\n    import Model, { belongsTo } from '@ember-data/model';\n\n    export default Model.extend({\n      onePost: belongsTo('post'),\n      twoPost: belongsTo('post'),\n      redPost: belongsTo('post'),\n      bluePost: belongsTo('post')\n    });\n    ```\n\n    ```app/models/post.js\n    import Model, { hasMany } from '@ember-data/model';\n\n    export default Model.extend({\n      comments: hasMany('comment', {\n        inverse: 'redPost'\n      })\n    });\n    ```\n\n    You can also specify an inverse on a `belongsTo`, which works how\n    you'd expect.\n\n    #### Sync relationships\n\n    Ember Data resolves sync relationships with the related resources\n    available in its local store, hence it is expected these resources\n    to be loaded before or along-side the primary resource.\n\n    ```app/models/post.js\n    import Model, { hasMany } from '@ember-data/model';\n\n    export default Model.extend({\n      comments: hasMany('comment', {\n        async: false\n      })\n    });\n    ```\n\n    In contrast to async relationship, accessing a sync relationship\n    will always return a [ManyArray](/ember-data/release/classes/ManyArray) instance\n    containing the existing local resources. But it will error on access\n    when any of the known related resources have not been loaded.\n\n    ```\n    post.get('comments').forEach((comment) => {\n\n    });\n\n    ```\n\n    If you are using `links` with sync relationships, you have to use\n    `ref.reload` to fetch the resources.\n\n    @method hasMany\n    @public\n    @static\n    @for @ember-data/model\n    @param {String} type (optional) type of the relationship\n    @param {Object} options (optional) a hash of options\n    @return {Ember.computed} relationship\n  */\n\n  function hasMany(type, options) {\n    if (typeof type === 'object') {\n      options = type;\n      type = undefined;\n    }\n\n    ( !(typeof type === 'string' || typeof type === 'undefined') && Ember.assert(`The first argument to hasMany must be a string representing a model type key, not an instance of ${Ember.inspect(type)}. E.g., to define a relation to the Comment model, use hasMany('comment')`, typeof type === 'string' || typeof type === 'undefined'));\n    options = options || {};\n\n    if (typeof type === 'string') {\n      type = store.normalizeModelName(type);\n    } // Metadata about relationships is stored on the meta of\n    // the relationship. This is used for introspection and\n    // serialization. Note that `key` is populated lazily\n    // the first time the CP is called.\n\n\n    var meta = {\n      type,\n      options,\n      isRelationship: true,\n      kind: 'hasMany',\n      name: 'Has Many',\n      key: null\n    };\n    return Ember.computed({\n      get(key) {\n        {\n          if (['_internalModel', 'recordData', 'currentState'].indexOf(key) !== -1) {\n            throw new Error(`'${key}' is a reserved property name on instances of classes extending Model. Please choose a different property name for your hasMany on ${this.constructor.toString()}`);\n          }\n        }\n\n        return this._internalModel.getHasMany(key);\n      },\n\n      set(key, records) {\n        {\n          if (['_internalModel', 'recordData', 'currentState'].indexOf(key) !== -1) {\n            throw new Error(`'${key}' is a reserved property name on instances of classes extending Model. Please choose a different property name for your hasMany on ${this.constructor.toString()}`);\n          }\n        }\n\n        var internalModel = this._internalModel;\n        internalModel.setDirtyHasMany(key, records);\n        return internalModel.getHasMany(key);\n      }\n\n    }).meta(meta);\n  }\n\n  var hasMany$1 = computedMacroWithOptionalParams(hasMany);\n\n  /**\n    @module @ember-data/store\n  */\n\n  /**\n    Holds validation errors for a given record, organized by attribute names.\n\n    Every `Model` has an `errors` property that is an instance of\n    `Errors`. This can be used to display validation error\n    messages returned from the server when a `record.save()` rejects.\n\n    For Example, if you had a `User` model that looked like this:\n\n    ```app/models/user.js\n    import Model, { attr } from '@ember-data/model';\n\n    export default Model.extend({\n      username: attr('string'),\n      email: attr('string')\n    });\n    ```\n    And you attempted to save a record that did not validate on the backend:\n\n    ```javascript\n    let user = store.createRecord('user', {\n      username: 'tomster',\n      email: 'invalidEmail'\n    });\n    user.save();\n    ```\n\n    Your backend would be expected to return an error response that described\n    the problem, so that error messages can be generated on the app.\n\n    API responses will be translated into instances of `Errors` differently,\n    depending on the specific combination of adapter and serializer used. You\n    may want to check the documentation or the source code of the libraries\n    that you are using, to know how they expect errors to be communicated.\n\n    Errors can be displayed to the user by accessing their property name\n    to get an array of all the error objects for that property. Each\n    error object is a JavaScript object with two keys:\n\n    - `message` A string containing the error message from the backend\n    - `attribute` The name of the property associated with this error message\n\n    ```handlebars\n    <label>Username: {{input value=username}} </label>\n    {{#each model.errors.username as |error|}}\n      <div class=\"error\">\n        {{error.message}}\n      </div>\n    {{/each}}\n\n    <label>Email: {{input value=email}} </label>\n    {{#each model.errors.email as |error|}}\n      <div class=\"error\">\n        {{error.message}}\n      </div>\n    {{/each}}\n    ```\n\n    You can also access the special `messages` property on the error\n    object to get an array of all the error strings.\n\n    ```handlebars\n    {{#each model.errors.messages as |message|}}\n      <div class=\"error\">\n        {{message}}\n      </div>\n    {{/each}}\n    ```\n\n    @class Errors\n    @extends ArrayProxy\n    @uses Evented\n   */\n\n  var Errors = Ember.ArrayProxy.extend(Private.DeprecatedEvented, {\n    /**\n      Register with target handler\n       @method _registerHandlers\n      @private\n    */\n    _registerHandlers(becameInvalid, becameValid) {\n      this._registeredHandlers = {\n        becameInvalid,\n        becameValid\n      };\n    },\n\n    /**\n      @property errorsByAttributeName\n      @type {MapWithDefault}\n      @private\n    */\n    errorsByAttributeName: Ember.computed(function () {\n      return new Map();\n    }),\n\n    /**\n      Returns errors for a given attribute\n       ```javascript\n      let user = store.createRecord('user', {\n        username: 'tomster',\n        email: 'invalidEmail'\n      });\n      user.save().catch(function(){\n        user.get('errors').errorsFor('email'); // returns:\n        // [{attribute: \"email\", message: \"Doesn't look like a valid email.\"}]\n      });\n      ```\n       @method errorsFor\n      @param {String} attribute\n      @return {Array}\n    */\n    errorsFor(attribute) {\n      var map = Ember.get(this, 'errorsByAttributeName');\n\n      if (!map.has(attribute)) {\n        map.set(attribute, Ember.A());\n      }\n\n      return map.get(attribute);\n    },\n\n    /**\n      An array containing all of the error messages for this\n      record. This is useful for displaying all errors to the user.\n       ```handlebars\n      {{#each model.errors.messages as |message|}}\n        <div class=\"error\">\n          {{message}}\n        </div>\n      {{/each}}\n      ```\n       @property messages\n      @type {Array}\n    */\n    messages: Ember.computed.mapBy('content', 'message'),\n\n    /**\n      @property content\n      @type {Array}\n      @private\n    */\n    content: Ember.computed(function () {\n      return Ember.A();\n    }),\n\n    /**\n      @method unknownProperty\n      @private\n    */\n    unknownProperty(attribute) {\n      var errors = this.errorsFor(attribute);\n\n      if (errors.length === 0) {\n        return undefined;\n      }\n\n      return errors;\n    },\n\n    /**\n      Total number of errors.\n       @property length\n      @type {Number}\n      @readOnly\n    */\n\n    /**\n      @property isEmpty\n      @type {Boolean}\n      @readOnly\n    */\n    isEmpty: Ember.computed.not('length').readOnly(),\n\n    /**\n     Manually adds errors to the record. This will trigger the `becameInvalid` event/ lifecycle method on\n      the record and transition the record into an `invalid` state.\n      Example\n     ```javascript\n      let errors = get(user, 'errors');\n       // add multiple errors\n      errors.add('password', [\n        'Must be at least 12 characters',\n        'Must contain at least one symbol',\n        'Cannot contain your name'\n      ]);\n       errors.errorsFor('password');\n      // =>\n      // [\n      //   { attribute: 'password', message: 'Must be at least 12 characters' },\n      //   { attribute: 'password', message: 'Must contain at least one symbol' },\n      //   { attribute: 'password', message: 'Cannot contain your name' },\n      // ]\n       // add a single error\n      errors.add('username', 'This field is required');\n       errors.errorsFor('password');\n      // =>\n      // [\n      //   { attribute: 'username', message: 'This field is required' },\n      // ]\n     ```\n    @method add\n    @param {string} attribute - the property name of an attribute or relationship\n    @param {string[]|string} messages - an error message or array of error messages for the attribute\n     */\n    add(attribute, messages) {\n      var wasEmpty = Ember.get(this, 'isEmpty');\n\n      this._add(attribute, messages);\n\n      if (wasEmpty && !Ember.get(this, 'isEmpty')) {\n        this._registeredHandlers && this._registeredHandlers.becameInvalid();\n\n        if ( this._has('becameInvalid')) {\n          this.trigger('becameInvalid');\n        }\n      }\n    },\n\n    /**\n      Adds error messages to a given attribute without sending event.\n       @method _add\n      @private\n    */\n    _add(attribute, messages) {\n      messages = this._findOrCreateMessages(attribute, messages);\n      this.addObjects(messages);\n      this.errorsFor(attribute).addObjects(messages);\n      this.notifyPropertyChange(attribute);\n    },\n\n    /**\n      @method _findOrCreateMessages\n      @private\n    */\n    _findOrCreateMessages(attribute, messages) {\n      var errors = this.errorsFor(attribute);\n      var messagesArray = Ember.makeArray(messages);\n\n      var _messages = new Array(messagesArray.length);\n\n      for (var i = 0; i < messagesArray.length; i++) {\n        var message = messagesArray[i];\n        var err = errors.findBy('message', message);\n\n        if (err) {\n          _messages[i] = err;\n        } else {\n          _messages[i] = {\n            attribute: attribute,\n            message: message\n          };\n        }\n      }\n\n      return _messages;\n    },\n\n    /**\n     Manually removes all errors for a given member from the record.\n       This will transition the record into a `valid` state, and\n      triggers the `becameValid` event and lifecycle method.\n      Example:\n      ```javascript\n      let errors = get('user', errors);\n      errors.add('phone', ['error-1', 'error-2']);\n       errors.errorsFor('phone');\n      // =>\n      // [\n      //   { attribute: 'phone', message: 'error-1' },\n      //   { attribute: 'phone', message: 'error-2' },\n      // ]\n       errors.remove('phone');\n       errors.errorsFor('phone');\n      // => undefined\n     ```\n     @method remove\n     @param {string} member - the property name of an attribute or relationship\n     */\n    remove(attribute) {\n      if (Ember.get(this, 'isEmpty')) {\n        return;\n      }\n\n      this._remove(attribute);\n\n      if (Ember.get(this, 'isEmpty')) {\n        this._registeredHandlers && this._registeredHandlers.becameValid();\n\n        if ( this._has('becameValid')) {\n          this.trigger('becameValid');\n        }\n      }\n    },\n\n    /**\n      Removes all error messages from the given attribute without sending event.\n       @method _remove\n      @private\n    */\n    _remove(attribute) {\n      if (Ember.get(this, 'isEmpty')) {\n        return;\n      }\n\n      var content = this.rejectBy('attribute', attribute);\n      Ember.get(this, 'content').setObjects(content);\n      Ember.get(this, 'errorsByAttributeName').delete(attribute);\n      this.notifyPropertyChange(attribute);\n      this.notifyPropertyChange('length');\n    },\n\n    /**\n     Manually clears all errors for the record.\n       This will transition the record into a `valid` state, and\n       will trigger the `becameValid` event and lifecycle method.\n     Example:\n      ```javascript\n     let errors = get('user', errors);\n     errors.add('username', ['error-a']);\n     errors.add('phone', ['error-1', 'error-2']);\n      errors.errorsFor('username');\n     // =>\n     // [\n     //   { attribute: 'username', message: 'error-a' },\n     // ]\n      errors.errorsFor('phone');\n     // =>\n     // [\n     //   { attribute: 'phone', message: 'error-1' },\n     //   { attribute: 'phone', message: 'error-2' },\n     // ]\n      errors.clear();\n      errors.errorsFor('username');\n     // => undefined\n      errors.errorsFor('phone');\n     // => undefined\n      errors.get('messages')\n     // => []\n     ```\n     @method remove\n     */\n    clear() {\n      if (Ember.get(this, 'isEmpty')) {\n        return;\n      }\n\n      this._clear();\n\n      this._registeredHandlers && this._registeredHandlers.becameValid();\n\n      if ( this._has('becameValid')) {\n        this.trigger('becameValid');\n      }\n    },\n\n    /**\n      Removes all error messages.\n      to the record.\n       @method _clear\n      @private\n    */\n    _clear() {\n      if (Ember.get(this, 'isEmpty')) {\n        return;\n      }\n\n      var errorsByAttributeName = Ember.get(this, 'errorsByAttributeName');\n      var attributes = [];\n      errorsByAttributeName.forEach(function (_, attribute) {\n        attributes.push(attribute);\n      });\n      errorsByAttributeName.clear();\n      attributes.forEach(attribute => {\n        this.notifyPropertyChange(attribute);\n      });\n      Ember.ArrayProxy.prototype.clear.call(this);\n    },\n\n    /**\n      Checks if there are error messages for the given attribute.\n       ```app/routes/user/edit.js\n      import Route from '@ember/routing/route';\n       export default Route.extend({\n        actions: {\n          save: function(user) {\n            if (user.get('errors').has('email')) {\n              return alert('Please update your email before attempting to save.');\n            }\n            user.save();\n          }\n        }\n      });\n      ```\n       @method has\n      @param {String} attribute\n      @return {Boolean} true if there some errors on given attribute\n    */\n    has(attribute) {\n      return this.errorsFor(attribute).length > 0;\n    }\n\n  });\n\n  /**\n    @module @ember-data/model\n  */\n\n  var relationshipsDescriptor = Ember.computed(function () {\n    var map = new Map();\n    var relationshipsByName = Ember.get(this, 'relationshipsByName'); // Loop through each computed property on the class\n\n    relationshipsByName.forEach(desc => {\n      var {\n        type\n      } = desc;\n\n      if (!map.has(type)) {\n        map.set(type, []);\n      }\n\n      map.get(type).push(desc);\n    });\n    return map;\n  }).readOnly();\n  var relatedTypesDescriptor = Ember.computed(function () {\n    var parentModelName = this.modelName;\n    var types = Ember.A(); // Loop through each computed property on the class,\n    // and create an array of the unique types involved\n    // in relationships\n\n    this.eachComputedProperty((name, meta) => {\n      if (meta.isRelationship) {\n        meta.key = name;\n        var modelName = Private.typeForRelationshipMeta(meta);\n        ( !(modelName) && Ember.assert(`You specified a hasMany (${meta.type}) on ${parentModelName} but ${meta.type} was not found.`, modelName));\n\n        if (!types.includes(modelName)) {\n          ( !(!!modelName) && Ember.assert(`Trying to sideload ${name} on ${this.toString()} but the type doesn't exist.`, !!modelName));\n          types.push(modelName);\n        }\n      }\n    });\n    return types;\n  }).readOnly();\n  var relationshipsObjectDescriptor = Ember.computed(function () {\n    var relationships = Object.create(null);\n    var modelName = this.modelName;\n    this.eachComputedProperty((name, meta) => {\n      if (meta.isRelationship) {\n        meta.key = name;\n        meta.name = name;\n        meta.parentModelName = modelName;\n        relationships[name] = Private.relationshipFromMeta(meta);\n      }\n    });\n    return relationships;\n  });\n  var relationshipsByNameDescriptor = Ember.computed(function () {\n    var map = new Map();\n    var rels = Ember.get(this, 'relationshipsObject');\n    var relationships = Object.keys(rels);\n\n    for (var i = 0; i < relationships.length; i++) {\n      var key = relationships[i];\n      var value = rels[key];\n      map.set(value.key, value);\n    }\n\n    return map;\n  }).readOnly();\n\n  var {\n    changeProperties\n  } = Ember;\n\n  function findPossibleInverses(type, inverseType, name, relationshipsSoFar) {\n    var possibleRelationships = relationshipsSoFar || [];\n    var relationshipMap = Ember.get(inverseType, 'relationships');\n\n    if (!relationshipMap) {\n      return possibleRelationships;\n    }\n\n    var relationshipsForType = relationshipMap.get(type.modelName);\n    var relationships = Array.isArray(relationshipsForType) ? relationshipsForType.filter(relationship => {\n      var optionsForRelationship = inverseType.metaForProperty(relationship.name).options;\n\n      if (!optionsForRelationship.inverse && optionsForRelationship.inverse !== null) {\n        return true;\n      }\n\n      return name === optionsForRelationship.inverse;\n    }) : null;\n\n    if (relationships) {\n      possibleRelationships.push.apply(possibleRelationships, relationships);\n    } //Recurse to support polymorphism\n\n\n    if (type.superclass) {\n      findPossibleInverses(type.superclass, inverseType, name, possibleRelationships);\n    }\n\n    return possibleRelationships;\n  }\n\n  var retrieveFromCurrentState = Ember.computed('currentState', function (key) {\n    return Ember.get(this._internalModel.currentState, key);\n  }).readOnly();\n  var isValidRecordData = Ember.computed('errors.length', function (key) {\n    return !(this.get('errors.length') > 0);\n  }).readOnly();\n  var isValid =  retrieveFromCurrentState;\n  var isDeletedCP;\n\n  {\n    isDeletedCP = retrieveFromCurrentState;\n  }\n\n  var isNewCP;\n\n  {\n    isNewCP = retrieveFromCurrentState;\n  }\n\n  var adapterError;\n\n  {\n    adapterError = null;\n  }\n\n  var isError;\n\n  {\n    isError = false;\n  }\n\n  var isReloading;\n\n  {\n    isReloading = false;\n  }\n  /**\n    @class Model\n    @module @ember-data/model\n    @extends EmberObject\n    @uses EmberData.DeprecatedEvented\n  */\n\n\n  var Model = Ember.Object.extend(Private.DeprecatedEvented, {\n    init() {\n      this._super(...arguments);\n\n      {\n        if (!this._internalModel) {\n          throw new Ember.Error('You should not call `create` on a model. Instead, call `store.createRecord` with the attributes you would like to set.');\n        }\n      }\n    },\n\n    _notifyNetworkChanges: function () {\n      {\n        ['isValid'].forEach(key => this.notifyPropertyChange(key));\n      }\n    },\n\n    /**\n      If this property is `true` the record is in the `empty`\n      state. Empty is the first state all records enter after they have\n      been created. Most records created by the store will quickly\n      transition to the `loading` state if data needs to be fetched from\n      the server or the `created` state if the record is created on the\n      client. A record can also enter the empty state if the adapter is\n      unable to locate the record.\n       @property isEmpty\n      @type {Boolean}\n      @readOnly\n    */\n    isEmpty: retrieveFromCurrentState,\n\n    /**\n      If this property is `true` the record is in the `loading` state. A\n      record enters this state when the store asks the adapter for its\n      data. It remains in this state until the adapter provides the\n      requested data.\n       @property isLoading\n      @type {Boolean}\n      @readOnly\n    */\n    isLoading: retrieveFromCurrentState,\n\n    /**\n      If this property is `true` the record is in the `loaded` state. A\n      record enters this state when its data is populated. Most of a\n      record's lifecycle is spent inside substates of the `loaded`\n      state.\n       Example\n       ```javascript\n      let record = store.createRecord('model');\n      record.get('isLoaded'); // true\n       store.findRecord('model', 1).then(function(model) {\n        model.get('isLoaded'); // true\n      });\n      ```\n       @property isLoaded\n      @type {Boolean}\n      @readOnly\n    */\n    isLoaded: retrieveFromCurrentState,\n\n    /**\n      If this property is `true` the record is in the `dirty` state. The\n      record has local changes that have not yet been saved by the\n      adapter. This includes records that have been created (but not yet\n      saved) or deleted.\n       Example\n       ```javascript\n      let record = store.createRecord('model');\n      record.get('hasDirtyAttributes'); // true\n       store.findRecord('model', 1).then(function(model) {\n        model.get('hasDirtyAttributes'); // false\n        model.set('foo', 'some value');\n        model.get('hasDirtyAttributes'); // true\n      });\n      ```\n       @since 1.13.0\n      @property hasDirtyAttributes\n      @type {Boolean}\n      @readOnly\n    */\n    hasDirtyAttributes: Ember.computed('currentState.isDirty', function () {\n      return this.get('currentState.isDirty');\n    }),\n\n    /**\n      If this property is `true` the record is in the `saving` state. A\n      record enters the saving state when `save` is called, but the\n      adapter has not yet acknowledged that the changes have been\n      persisted to the backend.\n       Example\n       ```javascript\n      let record = store.createRecord('model');\n      record.get('isSaving'); // false\n      let promise = record.save();\n      record.get('isSaving'); // true\n      promise.then(function() {\n        record.get('isSaving'); // false\n      });\n      ```\n       @property isSaving\n      @type {Boolean}\n      @readOnly\n    */\n    isSaving: retrieveFromCurrentState,\n\n    /**\n      If this property is `true` the record is in the `deleted` state\n      and has been marked for deletion. When `isDeleted` is true and\n      `hasDirtyAttributes` is true, the record is deleted locally but the deletion\n      was not yet persisted. When `isSaving` is true, the change is\n      in-flight. When both `hasDirtyAttributes` and `isSaving` are false, the\n      change has persisted.\n       Example\n       ```javascript\n      let record = store.createRecord('model');\n      record.get('isDeleted');    // false\n      record.deleteRecord();\n       // Locally deleted\n      record.get('isDeleted');           // true\n      record.get('hasDirtyAttributes');  // true\n      record.get('isSaving');            // false\n       // Persisting the deletion\n      let promise = record.save();\n      record.get('isDeleted');    // true\n      record.get('isSaving');     // true\n       // Deletion Persisted\n      promise.then(function() {\n        record.get('isDeleted');          // true\n        record.get('isSaving');           // false\n        record.get('hasDirtyAttributes'); // false\n      });\n      ```\n       @property isDeleted\n      @type {Boolean}\n      @readOnly\n    */\n    isDeleted: isDeletedCP,\n\n    /**\n      If this property is `true` the record is in the `new` state. A\n      record will be in the `new` state when it has been created on the\n      client and the adapter has not yet report that it was successfully\n      saved.\n       Example\n       ```javascript\n      let record = store.createRecord('model');\n      record.get('isNew'); // true\n       record.save().then(function(model) {\n        model.get('isNew'); // false\n      });\n      ```\n       @property isNew\n      @type {Boolean}\n      @readOnly\n    */\n    isNew: isNewCP,\n\n    /**\n      If this property is `true` the record is in the `valid` state.\n       A record will be in the `valid` state when the adapter did not report any\n      server-side validation failures.\n       @property isValid\n      @type {Boolean}\n      @readOnly\n    */\n    isValid: isValid,\n\n    _markInvalidRequestAsClean() {\n    },\n\n    /**\n      If the record is in the dirty state this property will report what\n      kind of change has caused it to move into the dirty\n      state. Possible values are:\n       - `created` The record has been created by the client and not yet saved to the adapter.\n      - `updated` The record has been updated by the client and not yet saved to the adapter.\n      - `deleted` The record has been deleted by the client and not yet saved to the adapter.\n       Example\n       ```javascript\n      let record = store.createRecord('model');\n      record.get('dirtyType'); // 'created'\n      ```\n       @property dirtyType\n      @type {String}\n      @readOnly\n    */\n    dirtyType: retrieveFromCurrentState,\n\n    /**\n      If `true` the adapter reported that it was unable to save local\n      changes to the backend for any reason other than a server-side\n      validation error.\n       Example\n       ```javascript\n      record.get('isError'); // false\n      record.set('foo', 'valid value');\n      record.save().then(null, function() {\n        record.get('isError'); // true\n      });\n      ```\n       @property isError\n      @type {Boolean}\n      @readOnly\n    */\n    isError: isError,\n\n    _markErrorRequestAsClean() {\n      this._errorRequests = [];\n      this._lastError = null;\n\n      this._notifyNetworkChanges();\n    },\n\n    /**\n      If `true` the store is attempting to reload the record from the adapter.\n       Example\n       ```javascript\n      record.get('isReloading'); // false\n      record.reload();\n      record.get('isReloading'); // true\n      ```\n       @property isReloading\n      @type {Boolean}\n      @readOnly\n    */\n    isReloading: isReloading,\n\n    /**\n      All ember models have an id property. This is an identifier\n      managed by an external source. These are always coerced to be\n      strings before being used internally. Note when declaring the\n      attributes for a model it is an error to declare an id\n      attribute.\n       ```javascript\n      let record = store.createRecord('model');\n      record.get('id'); // null\n       store.findRecord('model', 1).then(function(model) {\n        model.get('id'); // '1'\n      });\n      ```\n       @property id\n      @type {String}\n    */\n\n    /**\n      @property currentState\n      @private\n      @type {Object}\n    */\n    currentState: Private.RootState.empty,\n    // defined here to avoid triggering setUnknownProperty\n\n    /**\n     @property _internalModel\n     @private\n     @type {Object}\n     */\n    _internalModel: null,\n    // defined here to avoid triggering setUnknownProperty\n\n    /**\n     @property recordData\n     @private\n     @type undefined (reserved)\n     */\n    // will be defined here to avoid triggering setUnknownProperty\n\n    /**\n     @property store\n     */\n    store: null,\n    // defined here to avoid triggering setUnknownProperty\n\n    /**\n      When the record is in the `invalid` state this object will contain\n      any errors returned by the adapter. When present the errors hash\n      contains keys corresponding to the invalid property names\n      and values which are arrays of Javascript objects with two keys:\n       - `message` A string containing the error message from the backend\n      - `attribute` The name of the property associated with this error message\n       ```javascript\n      record.get('errors.length'); // 0\n      record.set('foo', 'invalid value');\n      record.save().catch(function() {\n        record.get('errors').get('foo');\n        // [{message: 'foo should be a number.', attribute: 'foo'}]\n      });\n      ```\n       The `errors` property us useful for displaying error messages to\n      the user.\n       ```handlebars\n      <label>Username: {{input value=username}} </label>\n      {{#each model.errors.username as |error|}}\n        <div class=\"error\">\n          {{error.message}}\n        </div>\n      {{/each}}\n      <label>Email: {{input value=email}} </label>\n      {{#each model.errors.email as |error|}}\n        <div class=\"error\">\n          {{error.message}}\n        </div>\n      {{/each}}\n      ```\n        You can also access the special `messages` property on the error\n      object to get an array of all the error strings.\n       ```handlebars\n      {{#each model.errors.messages as |message|}}\n        <div class=\"error\">\n          {{message}}\n        </div>\n      {{/each}}\n      ```\n       @property errors\n      @type {Errors}\n    */\n    errors: Ember.computed(function () {\n      var errors = Errors.create();\n\n      errors._registerHandlers(() => {\n        this.send('becameInvalid');\n      }, () => {\n        this.send('becameValid');\n      });\n\n      return errors;\n    }).readOnly(),\n\n    invalidErrorsChanged(jsonApiErrors) {\n    },\n\n    _addErrorMessageToAttribute(attribute, message) {\n      this.get('errors')._add(attribute, message);\n    },\n\n    _clearErrorMessages() {\n      this.get('errors')._clear();\n    },\n\n    /**\n      This property holds the `AdapterError` object with which\n      last adapter operation was rejected.\n       @property adapterError\n      @type {AdapterError}\n    */\n    adapterError: adapterError,\n\n    /**\n      Create a JSON representation of the record, using the serialization\n      strategy of the store's adapter.\n      `serialize` takes an optional hash as a parameter, currently\n      supported options are:\n      - `includeId`: `true` if the record's ID should be included in the\n        JSON representation.\n       @method serialize\n      @param {Object} options\n      @return {Object} an object whose values are primitive JSON values only\n    */\n    serialize(options) {\n      return this._internalModel.createSnapshot().serialize(options);\n    },\n\n    /**\n      Fired when the record is ready to be interacted with,\n      that is either loaded from the server or created locally.\n       @event ready\n    */\n    ready: null,\n\n    /**\n      Fired when the record is loaded from the server.\n       @event didLoad\n    */\n    didLoad: null,\n\n    /**\n      Fired when the record is updated.\n       @event didUpdate\n    */\n    didUpdate: null,\n\n    /**\n      Fired when a new record is commited to the server.\n       @event didCreate\n    */\n    didCreate: null,\n\n    /**\n      Fired when the record is deleted.\n       @event didDelete\n    */\n    didDelete: null,\n\n    /**\n      Fired when the record becomes invalid.\n       @event becameInvalid\n    */\n    becameInvalid: null,\n\n    /**\n      Fired when the record enters the error state.\n       @event becameError\n    */\n    becameError: null,\n\n    /**\n      Fired when the record is rolled back.\n       @event rolledBack\n    */\n    rolledBack: null,\n\n    //TODO Do we want to deprecate these?\n\n    /**\n      @method send\n      @private\n      @param {String} name\n      @param {Object} context\n    */\n    send(name, context) {\n      return this._internalModel.send(name, context);\n    },\n\n    /**\n      @method transitionTo\n      @private\n      @param {String} name\n    */\n    transitionTo(name) {\n      return this._internalModel.transitionTo(name);\n    },\n\n    /**\n      Marks the record as deleted but does not save it. You must call\n      `save` afterwards if you want to persist it. You might use this\n      method if you want to allow the user to still `rollbackAttributes()`\n      after a delete was made.\n       Example\n       ```app/routes/model/delete.js\n      import Route from '@ember/routing/route';\n       export default Route.extend({\n        actions: {\n          softDelete() {\n            this.get('controller.model').deleteRecord();\n          },\n          confirm() {\n            this.get('controller.model').save();\n          },\n          undo() {\n            this.get('controller.model').rollbackAttributes();\n          }\n        }\n      });\n      ```\n       @method deleteRecord\n    */\n    deleteRecord() {\n      this._internalModel.deleteRecord();\n    },\n\n    /**\n      Same as `deleteRecord`, but saves the record immediately.\n       Example\n       ```app/routes/model/delete.js\n      import Route from '@ember/routing/route';\n       export default Route.extend({\n        actions: {\n          delete() {\n            this.get('controller.model').destroyRecord().then(function() {\n              controller.transitionToRoute('model.index');\n            });\n          }\n        }\n      });\n      ```\n       If you pass an object on the `adapterOptions` property of the options\n      argument it will be passed to your adapter via the snapshot\n       ```js\n      record.destroyRecord({ adapterOptions: { subscribe: false } });\n      ```\n       ```app/adapters/post.js\n      import MyCustomAdapter from './custom-adapter';\n       export default MyCustomAdapter.extend({\n        deleteRecord(store, type, snapshot) {\n          if (snapshot.adapterOptions.subscribe) {\n            // ...\n          }\n          // ...\n        }\n      });\n      ```\n       @method destroyRecord\n      @param {Object} options\n      @return {Promise} a promise that will be resolved when the adapter returns\n      successfully or rejected if the adapter returns with an error.\n    */\n    destroyRecord(options) {\n      this.deleteRecord();\n      return this.save(options);\n    },\n\n    /**\n      Unloads the record from the store. This will not send a delete request\n      to your server, it just unloads the record from memory.\n       @method unloadRecord\n    */\n    unloadRecord() {\n      if (this.isDestroyed) {\n        return;\n      }\n\n      this._internalModel.unloadRecord();\n    },\n\n    /**\n      @method _notifyProperties\n      @private\n    */\n    _notifyProperties(keys) {\n      // changeProperties defers notifications until after the delegate\n      // and protects with a try...finally block\n      // previously used begin...endPropertyChanges but this is private API\n      changeProperties(() => {\n        var key;\n\n        for (var i = 0, length = keys.length; i < length; i++) {\n          key = keys[i];\n          this.notifyPropertyChange(key);\n        }\n      });\n    },\n\n    /**\n      Returns an object, whose keys are changed properties, and value is\n      an [oldProp, newProp] array.\n       The array represents the diff of the canonical state with the local state\n      of the model. Note: if the model is created locally, the canonical state is\n      empty since the adapter hasn't acknowledged the attributes yet:\n       Example\n       ```app/models/mascot.js\n      import Model, { attr } from '@ember-data/model';\n       export default Model.extend({\n        name: attr('string'),\n        isAdmin: attr('boolean', {\n          defaultValue: false\n        })\n      });\n      ```\n       ```javascript\n      let mascot = store.createRecord('mascot');\n       mascot.changedAttributes(); // {}\n       mascot.set('name', 'Tomster');\n      mascot.changedAttributes(); // { name: [undefined, 'Tomster'] }\n       mascot.set('isAdmin', true);\n      mascot.changedAttributes(); // { isAdmin: [undefined, true], name: [undefined, 'Tomster'] }\n       mascot.save().then(function() {\n        mascot.changedAttributes(); // {}\n         mascot.set('isAdmin', false);\n        mascot.changedAttributes(); // { isAdmin: [true, false] }\n      });\n      ```\n       @method changedAttributes\n      @return {Object} an object, whose keys are changed properties,\n        and value is an [oldProp, newProp] array.\n    */\n    changedAttributes() {\n      return this._internalModel.changedAttributes();\n    },\n\n    /**\n      If the model `hasDirtyAttributes` this function will discard any unsaved\n      changes. If the model `isNew` it will be removed from the store.\n       Example\n       ```javascript\n      record.get('name'); // 'Untitled Document'\n      record.set('name', 'Doc 1');\n      record.get('name'); // 'Doc 1'\n      record.rollbackAttributes();\n      record.get('name'); // 'Untitled Document'\n      ```\n       @since 1.13.0\n      @method rollbackAttributes\n    */\n    rollbackAttributes() {\n      this._internalModel.rollbackAttributes();\n    },\n\n    /*\n      @method _createSnapshot\n      @private\n    */\n    _createSnapshot() {\n      return this._internalModel.createSnapshot();\n    },\n\n    toStringExtension() {\n      // the _internalModel guard exists, because some dev-only deprecation code\n      // (addListener via validatePropertyInjections) invokes toString before the\n      // object is real.\n      return this._internalModel && this._internalModel.id;\n    },\n\n    /**\n      Save the record and persist any changes to the record to an\n      external source via the adapter.\n       Example\n       ```javascript\n      record.set('name', 'Tomster');\n      record.save().then(function() {\n        // Success callback\n      }, function() {\n        // Error callback\n      });\n      ```\n      If you pass an object using the `adapterOptions` property of the options\n     argument it will be passed to your adapter via the snapshot.\n       ```js\n      record.save({ adapterOptions: { subscribe: false } });\n      ```\n       ```app/adapters/post.js\n      import MyCustomAdapter from './custom-adapter';\n       export default MyCustomAdapter.extend({\n        updateRecord(store, type, snapshot) {\n          if (snapshot.adapterOptions.subscribe) {\n            // ...\n          }\n          // ...\n        }\n      });\n      ```\n       @method save\n      @param {Object} options\n      @return {Promise} a promise that will be resolved when the adapter returns\n      successfully or rejected if the adapter returns with an error.\n    */\n    save(options) {\n      return Private.PromiseObject.create({\n        promise: this._internalModel.save(options).then(() => this)\n      });\n    },\n\n    /**\n      Reload the record from the adapter.\n       This will only work if the record has already finished loading.\n       Example\n       ```app/routes/model/view.js\n      import Route from '@ember/routing/route';\n       export default Route.extend({\n        actions: {\n          reload() {\n            this.controller.get('model').reload().then(function(model) {\n              // do something with the reloaded model\n            });\n          }\n        }\n      });\n      ```\n       @method reload\n      @param {Object} options optional, may include `adapterOptions` hash which will be passed to adapter request\n      @return {Promise} a promise that will be resolved with the record when the\n      adapter returns successfully or rejected if the adapter returns\n      with an error.\n    */\n    reload(options) {\n      var wrappedAdapterOptions;\n\n      if (typeof options === 'object' && options !== null && options.adapterOptions) {\n        wrappedAdapterOptions = {\n          adapterOptions: options.adapterOptions\n        };\n      }\n\n      return Private.PromiseObject.create({\n        promise: this._internalModel.reload(wrappedAdapterOptions).then(() => this)\n      });\n    },\n\n    attr() {\n      ( Ember.assert('The `attr` method is not available on Model, a Snapshot was probably expected. Are you passing a Model instead of a Snapshot to your serializer?', false));\n    },\n\n    /**\n      Get the reference for the specified belongsTo relationship.\n       Example\n       ```app/models/blog.js\n      import Model, { belongsTo } from '@ember-data/model';\n       export default Model.extend({\n        user: belongsTo({ async: true })\n      });\n      ```\n       ```javascript\n      let blog = store.push({\n        data: {\n          type: 'blog',\n          id: 1,\n          relationships: {\n            user: {\n              data: { type: 'user', id: 1 }\n            }\n          }\n        }\n      });\n      let userRef = blog.belongsTo('user');\n       // check if the user relationship is loaded\n      let isLoaded = userRef.value() !== null;\n       // get the record of the reference (null if not yet available)\n      let user = userRef.value();\n       // get the identifier of the reference\n      if (userRef.remoteType() === \"id\") {\n        let id = userRef.id();\n      } else if (userRef.remoteType() === \"link\") {\n        let link = userRef.link();\n      }\n       // load user (via store.findRecord or store.findBelongsTo)\n      userRef.load().then(...)\n       // or trigger a reload\n      userRef.reload().then(...)\n       // provide data for reference\n      userRef.push({\n        type: 'user',\n        id: 1,\n        attributes: {\n          username: \"@user\"\n        }\n      }).then(function(user) {\n        userRef.value() === user;\n      });\n      ```\n       @method belongsTo\n      @param {String} name of the relationship\n      @since 2.5.0\n      @return {BelongsToReference} reference for this relationship\n    */\n    belongsTo(name) {\n      return this._internalModel.referenceFor('belongsTo', name);\n    },\n\n    /**\n      Get the reference for the specified hasMany relationship.\n       Example\n       ```app/models/blog.js\n      import Model, { hasMany } from '@ember-data/model';\n       export default Model.extend({\n        comments: hasMany({ async: true })\n      });\n       let blog = store.push({\n        data: {\n          type: 'blog',\n          id: 1,\n          relationships: {\n            comments: {\n              data: [\n                { type: 'comment', id: 1 },\n                { type: 'comment', id: 2 }\n              ]\n            }\n          }\n        }\n      });\n      let commentsRef = blog.hasMany('comments');\n       // check if the comments are loaded already\n      let isLoaded = commentsRef.value() !== null;\n       // get the records of the reference (null if not yet available)\n      let comments = commentsRef.value();\n       // get the identifier of the reference\n      if (commentsRef.remoteType() === \"ids\") {\n        let ids = commentsRef.ids();\n      } else if (commentsRef.remoteType() === \"link\") {\n        let link = commentsRef.link();\n      }\n       // load comments (via store.findMany or store.findHasMany)\n      commentsRef.load().then(...)\n       // or trigger a reload\n      commentsRef.reload().then(...)\n       // provide data for reference\n      commentsRef.push([{ type: 'comment', id: 1 }, { type: 'comment', id: 2 }]).then(function(comments) {\n        commentsRef.value() === comments;\n      });\n      ```\n       @method hasMany\n      @param {String} name of the relationship\n      @since 2.5.0\n      @return {HasManyReference} reference for this relationship\n    */\n    hasMany(name) {\n      return this._internalModel.referenceFor('hasMany', name);\n    },\n\n    /**\n     Provides info about the model for debugging purposes\n     by grouping the properties into more semantic groups.\n      Meant to be used by debugging tools such as the Chrome Ember Extension.\n      - Groups all attributes in \"Attributes\" group.\n     - Groups all belongsTo relationships in \"Belongs To\" group.\n     - Groups all hasMany relationships in \"Has Many\" group.\n     - Groups all flags in \"Flags\" group.\n     - Flags relationship CPs as expensive properties.\n      @method _debugInfo\n     @for Model\n     @private\n     */\n    _debugInfo() {\n      var attributes = ['id'];\n      var relationships = {};\n      var expensiveProperties = [];\n      this.eachAttribute((name, meta) => attributes.push(name));\n      var groups = [{\n        name: 'Attributes',\n        properties: attributes,\n        expand: true\n      }];\n      this.eachRelationship((name, relationship) => {\n        var properties = relationships[relationship.kind];\n\n        if (properties === undefined) {\n          properties = relationships[relationship.kind] = [];\n          groups.push({\n            name: relationship.kind,\n            properties,\n            expand: true\n          });\n        }\n\n        properties.push(name);\n        expensiveProperties.push(name);\n      });\n      groups.push({\n        name: 'Flags',\n        properties: ['isLoaded', 'hasDirtyAttributes', 'isSaving', 'isDeleted', 'isError', 'isNew', 'isValid']\n      });\n      return {\n        propertyInfo: {\n          // include all other mixins / properties (not just the grouped ones)\n          includeOtherProperties: true,\n          groups: groups,\n          // don't pre-calculate unless cached\n          expensiveProperties: expensiveProperties\n        }\n      };\n    },\n\n    notifyBelongsToChange(key) {\n      this.notifyPropertyChange(key);\n    },\n\n    /**\n     Given a callback, iterates over each of the relationships in the model,\n     invoking the callback with the name of each relationship and its relationship\n     descriptor.\n       The callback method you provide should have the following signature (all\n     parameters are optional):\n      ```javascript\n     function(name, descriptor);\n     ```\n      - `name` the name of the current property in the iteration\n     - `descriptor` the meta object that describes this relationship\n      The relationship descriptor argument is an object with the following properties.\n      - **key** <span class=\"type\">String</span> the name of this relationship on the Model\n     - **kind** <span class=\"type\">String</span> \"hasMany\" or \"belongsTo\"\n     - **options** <span class=\"type\">Object</span> the original options hash passed when the relationship was declared\n     - **parentType** <span class=\"type\">Model</span> the type of the Model that owns this relationship\n     - **type** <span class=\"type\">String</span> the type name of the related Model\n      Note that in addition to a callback, you can also pass an optional target\n     object that will be set as `this` on the context.\n      Example\n      ```app/serializers/application.js\n     import JSONSerializer from '@ember-data/serializer/json';\n      export default JSONSerializer.extend({\n      serialize: function(record, options) {\n        let json = {};\n         record.eachRelationship(function(name, descriptor) {\n          if (descriptor.kind === 'hasMany') {\n            let serializedHasManyName = name.toUpperCase() + '_IDS';\n            json[serializedHasManyName] = record.get(name).mapBy('id');\n          }\n        });\n         return json;\n      }\n    });\n     ```\n      @method eachRelationship\n     @param {Function} callback the callback to invoke\n     @param {any} binding the value to which the callback's `this` should be bound\n     */\n    eachRelationship(callback, binding) {\n      this.constructor.eachRelationship(callback, binding);\n    },\n\n    relationshipFor(name) {\n      return Ember.get(this.constructor, 'relationshipsByName').get(name);\n    },\n\n    inverseFor(key) {\n      return this.constructor.inverseFor(key, this._internalModel.store);\n    },\n\n    notifyHasManyAdded(key) {\n      //We need to notifyPropertyChange in the adding case because we need to make sure\n      //we fetch the newly added record in case it is unloaded\n      //TODO(Igor): Consider whether we could do this only if the record state is unloaded\n      this.notifyPropertyChange(key);\n    },\n\n    eachAttribute(callback, binding) {\n      this.constructor.eachAttribute(callback, binding);\n    }\n\n  });\n\n  {\n    /**\n    Override the default event firing from Ember.Evented to\n    also call methods with the given name.\n     @method trigger\n    @private\n    @param {String} name\n    */\n    Model.reopen({\n      trigger(name) {\n        {\n          var fn = this[name];\n\n          if (typeof fn === 'function') {\n            var length = arguments.length;\n            var args = new Array(length - 1);\n\n            for (var i = 1; i < length; i++) {\n              args[i - 1] = arguments[i];\n            }\n\n            fn.apply(this, args);\n          }\n        }\n\n        var _hasEvent =  this._has(name) ;\n\n        if (_hasEvent) {\n          this._super(...arguments);\n        }\n      }\n\n    });\n  }\n\n  {\n    /**\n    @property data\n    @private\n    @deprecated\n    @type {Object}\n    */\n    Object.defineProperty(Model.prototype, 'data', {\n      configurable: false,\n\n      get() {\n        ( Ember.deprecate(`Model.data was private and it's use has been deprecated. For public access, use the RecordData API or iterate attributes`, false, {\n          id: 'ember-data:Model.data',\n          until: '3.9'\n        }));\n        return Private.recordDataFor(this)._data;\n      }\n\n    });\n  }\n\n  {\n    /**\n      Use [JSONSerializer](JSONSerializer.html) to\n      get the JSON representation of a record.\n       `toJSON` takes an optional hash as a parameter, currently\n      supported options are:\n       - `includeId`: `true` if the record's ID should be included in the\n        JSON representation.\n       @method toJSON\n      @param {Object} options\n      @return {Object} A JSON representation of the object.\n    */\n    Model.reopen({\n      toJSON(options) {\n        // container is for lazy transform lookups\n        ( Ember.deprecate(`Called the built-in \\`toJSON\\` on the record \"${this.constructor.modelName}:${this.id}\". The built-in \\`toJSON\\` method on instances of classes extending \\`Model\\` is deprecated. For more information see the link below.`, false, {\n          id: 'ember-data:model.toJSON',\n          until: '4.0',\n          url: 'https://deprecations.emberjs.com/ember-data/v3.x#toc_record-toJSON'\n        }));\n\n        var serializer = this._internalModel.store.serializerFor('-default');\n\n        var snapshot = this._internalModel.createSnapshot();\n\n        return serializer.serialize(snapshot, options);\n      }\n\n    });\n  }\n\n  var ID_DESCRIPTOR = {\n    configurable: false,\n\n    set(id) {\n      var normalizedId = Private.coerceId(id);\n\n      if (normalizedId !== null) {\n        this._internalModel.setId(normalizedId);\n      }\n    },\n\n    get() {\n      // the _internalModel guard exists, because some dev-only deprecation code\n      // (addListener via validatePropertyInjections) invokes toString before the\n      // object is real.\n      {\n        if (!this._internalModel) {\n          return;\n        }\n      }\n\n      Ember.get(this._internalModel, '_tag');\n      return this._internalModel.id;\n    }\n\n  };\n  Object.defineProperty(Model.prototype, 'id', ID_DESCRIPTOR);\n\n  {\n    var lookupDescriptor = function lookupDescriptor(obj, keyName) {\n      var current = obj;\n\n      do {\n        var descriptor = Object.getOwnPropertyDescriptor(current, keyName);\n\n        if (descriptor !== undefined) {\n          return descriptor;\n        }\n\n        current = Object.getPrototypeOf(current);\n      } while (current !== null);\n\n      return null;\n    };\n\n    var isBasicDesc = function isBasicDesc(desc) {\n      return !desc || !desc.get && !desc.set && desc.enumerable === true && desc.writable === true && desc.configurable === true;\n    };\n\n    var isDefaultEmptyDescriptor = function isDefaultEmptyDescriptor(obj, keyName) {\n      var instanceDesc = lookupDescriptor(obj, keyName);\n      return isBasicDesc(instanceDesc) && lookupDescriptor(obj.constructor, keyName) === null;\n    };\n\n    var lookupDeprecations;\n\n    var _deprecatedLifecycleMethods;\n\n    {\n      var INSTANCE_DEPRECATIONS = new WeakMap();\n      _deprecatedLifecycleMethods = ['becameError', 'becameInvalid', 'didCreate', 'didDelete', 'didLoad', 'didUpdate', 'ready', 'rolledBack'];\n\n      lookupDeprecations = function lookupInstanceDeprecations(instance) {\n        var deprecations = INSTANCE_DEPRECATIONS.get(instance);\n\n        if (!deprecations) {\n          deprecations = new Set();\n          INSTANCE_DEPRECATIONS.set(instance, deprecations);\n        }\n\n        return deprecations;\n      };\n    }\n\n    Model.reopen({\n      init() {\n        this._super(...arguments);\n\n        {\n          this._getDeprecatedEventedInfo = () => `${this._internalModel.modelName}#${this.id}`;\n        }\n\n        if (!isDefaultEmptyDescriptor(this, '_internalModel') || !(this._internalModel instanceof Private.InternalModel)) {\n          throw new Error(`'_internalModel' is a reserved property name on instances of classes extending Model. Please choose a different property name for ${this.constructor.toString()}`);\n        }\n\n        if (!isDefaultEmptyDescriptor(this, 'currentState') || this.get('currentState') !== this._internalModel.currentState) {\n          throw new Error(`'currentState' is a reserved property name on instances of classes extending Model. Please choose a different property name for ${this.constructor.toString()}`);\n        }\n\n        var idDesc = lookupDescriptor(this, 'id');\n\n        if (idDesc.get !== ID_DESCRIPTOR.get) {\n          throw new Ember.Error(`You may not set 'id' as an attribute on your model. Please remove any lines that look like: \\`id: attr('<type>')\\` from ${this.constructor.toString()}`);\n        }\n\n        {\n          var lifecycleDeprecations = lookupDeprecations(this.constructor);\n\n          _deprecatedLifecycleMethods.forEach(methodName => {\n            if (typeof this[methodName] === 'function' && !lifecycleDeprecations.has(methodName)) {\n              ( Ember.deprecate(`You defined a \\`${methodName}\\` method for ${this.constructor.toString()} but lifecycle events for models have been deprecated.`, false, {\n                id: 'ember-data:record-lifecycle-event-methods',\n                until: '4.0',\n                url: 'https://deprecations.emberjs.com/ember-data/v3.x#toc_record-lifecycle-event-methods'\n              }));\n              lifecycleDeprecations.add(methodName);\n            }\n          });\n        }\n      }\n\n    });\n  }\n\n  Model.reopenClass({\n    isModel: true,\n\n    /**\n      Create should only ever be called by the store. To create an instance of a\n      `Model` in a dirty state use `store.createRecord`.\n      To create instances of `Model` in a clean state, use `store.push`\n       @method create\n      @private\n      @static\n    */\n\n    /**\n     Represents the model's class name as a string. This can be used to look up the model's class name through\n     `Store`'s modelFor method.\n      `modelName` is generated for you by Ember Data. It will be a lowercased, dasherized string.\n     For example:\n      ```javascript\n     store.modelFor('post').modelName; // 'post'\n     store.modelFor('blog-post').modelName; // 'blog-post'\n     ```\n      The most common place you'll want to access `modelName` is in your serializer's `payloadKeyFromModelName` method. For example, to change payload\n     keys to underscore (instead of dasherized), you might use the following code:\n      ```javascript\n     import RESTSerializer from '@ember-data/serializer/rest';\n     import { underscore } from '@ember/string';\n      export default const PostSerializer = RESTSerializer.extend({\n       payloadKeyFromModelName(modelName) {\n         return underscore(modelName);\n       }\n     });\n     ```\n     @property modelName\n     @type String\n     @readonly\n     @static\n    */\n    modelName: null,\n\n    /*\n     These class methods below provide relationship\n     introspection abilities about relationships.\n      A note about the computed properties contained here:\n      **These properties are effectively sealed once called for the first time.**\n     To avoid repeatedly doing expensive iteration over a model's fields, these\n     values are computed once and then cached for the remainder of the runtime of\n     your application.\n      If your application needs to modify a class after its initial definition\n     (for example, using `reopen()` to add additional attributes), make sure you\n     do it before using your model with the store, which uses these properties\n     extensively.\n     */\n\n    /**\n     For a given relationship name, returns the model type of the relationship.\n      For example, if you define a model like this:\n      ```app/models/post.js\n     import Model, { hasMany } from '@ember-data/model';\n      export default Model.extend({\n        comments: hasMany('comment')\n      });\n     ```\n      Calling `store.modelFor('post').typeForRelationship('comments', store)` will return `Comment`.\n      @method typeForRelationship\n     @static\n     @param {String} name the name of the relationship\n     @param {store} store an instance of Store\n     @return {Model} the type of the relationship, or undefined\n     */\n    typeForRelationship(name, store) {\n      var relationship = Ember.get(this, 'relationshipsByName').get(name);\n      return relationship && store.modelFor(relationship.type);\n    },\n\n    inverseMap: Ember.computed(function () {\n      return Object.create(null);\n    }),\n\n    /**\n     Find the relationship which is the inverse of the one asked for.\n      For example, if you define models like this:\n      ```app/models/post.js\n     import Model, { hasMany } from '@ember-data/model';\n      export default Model.extend({\n        comments: hasMany('message')\n      });\n     ```\n      ```app/models/message.js\n     import Model, { belongsTo } from '@ember-data/model';\n      export default Model.extend({\n        owner: belongsTo('post')\n      });\n     ```\n      ``` js\n     store.modelFor('post').inverseFor('comments', store) // { type: App.Message, name: 'owner', kind: 'belongsTo' }\n     store.modelFor('message').inverseFor('owner', store) // { type: App.Post, name: 'comments', kind: 'hasMany' }\n     ```\n      @method inverseFor\n     @static\n     @param {String} name the name of the relationship\n     @param {Store} store\n     @return {Object} the inverse relationship, or null\n     */\n    inverseFor(name, store) {\n      var inverseMap = Ember.get(this, 'inverseMap');\n\n      if (inverseMap[name]) {\n        return inverseMap[name];\n      } else {\n        var inverse = this._findInverseFor(name, store);\n\n        inverseMap[name] = inverse;\n        return inverse;\n      }\n    },\n\n    //Calculate the inverse, ignoring the cache\n    _findInverseFor(name, store) {\n      var inverseType = this.typeForRelationship(name, store);\n\n      if (!inverseType) {\n        return null;\n      }\n\n      var propertyMeta = this.metaForProperty(name); //If inverse is manually specified to be null, like  `comments: hasMany('message', { inverse: null })`\n\n      var options = propertyMeta.options;\n\n      if (options.inverse === null) {\n        return null;\n      }\n\n      var inverseName, inverseKind, inverse, inverseOptions; //If inverse is specified manually, return the inverse\n\n      if (options.inverse) {\n        inverseName = options.inverse;\n        inverse = Ember.get(inverseType, 'relationshipsByName').get(inverseName);\n        ( !(!Ember.isNone(inverse)) && Ember.assert(\"We found no inverse relationships by the name of '\" + inverseName + \"' on the '\" + inverseType.modelName + \"' model. This is most likely due to a missing attribute on your model definition.\", !Ember.isNone(inverse))); // TODO probably just return the whole inverse here\n\n        inverseKind = inverse.kind;\n        inverseOptions = inverse.options;\n      } else {\n        //No inverse was specified manually, we need to use a heuristic to guess one\n        if (propertyMeta.type === propertyMeta.parentModelName) {\n          ( Ember.warn(`Detected a reflexive relationship by the name of '${name}' without an inverse option. Look at https://guides.emberjs.com/current/models/relationships/#toc_reflexive-relations for how to explicitly specify inverses.`, false, {\n            id: 'ds.model.reflexive-relationship-without-inverse'\n          }));\n        }\n\n        var possibleRelationships = findPossibleInverses(this, inverseType, name);\n\n        if (possibleRelationships.length === 0) {\n          return null;\n        }\n\n        var filteredRelationships = possibleRelationships.filter(possibleRelationship => {\n          var optionsForRelationship = inverseType.metaForProperty(possibleRelationship.name).options;\n          return name === optionsForRelationship.inverse;\n        });\n        ( !(filteredRelationships.length < 2) && Ember.assert(\"You defined the '\" + name + \"' relationship on \" + this + ', but you defined the inverse relationships of type ' + inverseType.toString() + ' multiple times. Look at https://guides.emberjs.com/current/models/relationships/#toc_explicit-inverses for how to explicitly specify inverses', filteredRelationships.length < 2));\n\n        if (filteredRelationships.length === 1) {\n          possibleRelationships = filteredRelationships;\n        }\n\n        ( !(possibleRelationships.length === 1) && Ember.assert(\"You defined the '\" + name + \"' relationship on \" + this + ', but multiple possible inverse relationships of type ' + this + ' were found on ' + inverseType + '. Look at https://guides.emberjs.com/current/models/relationships/#toc_explicit-inverses for how to explicitly specify inverses', possibleRelationships.length === 1));\n        inverseName = possibleRelationships[0].name;\n        inverseKind = possibleRelationships[0].kind;\n        inverseOptions = possibleRelationships[0].options;\n      }\n\n      ( !(!inverseOptions || inverseOptions.inverse !== null) && Ember.assert(`The ${inverseType.modelName}:${inverseName} relationship declares 'inverse: null', but it was resolved as the inverse for ${this.modelName}:${name}.`, !inverseOptions || inverseOptions.inverse !== null));\n      return {\n        type: inverseType,\n        name: inverseName,\n        kind: inverseKind,\n        options: inverseOptions\n      };\n    },\n\n    /**\n     The model's relationships as a map, keyed on the type of the\n     relationship. The value of each entry is an array containing a descriptor\n     for each relationship with that type, describing the name of the relationship\n     as well as the type.\n      For example, given the following model definition:\n      ```app/models/blog.js\n     import Model, { belongsTo, hasMany } from '@ember-data/model';\n      export default Model.extend({\n        users: hasMany('user'),\n        owner: belongsTo('user'),\n        posts: hasMany('post')\n      });\n     ```\n      This computed property would return a map describing these\n     relationships, like this:\n      ```javascript\n     import Ember from 'ember';\n     import Blog from 'app/models/blog';\n     import User from 'app/models/user';\n     import Post from 'app/models/post';\n      let relationships = Ember.get(Blog, 'relationships');\n     relationships.get('user');\n     //=> [ { name: 'users', kind: 'hasMany' },\n     //     { name: 'owner', kind: 'belongsTo' } ]\n     relationships.get('post');\n     //=> [ { name: 'posts', kind: 'hasMany' } ]\n     ```\n      @property relationships\n     @static\n     @type Map\n     @readOnly\n     */\n    relationships: relationshipsDescriptor,\n\n    /**\n     A hash containing lists of the model's relationships, grouped\n     by the relationship kind. For example, given a model with this\n     definition:\n      ```app/models/blog.js\n     import Model, { belongsTo, hasMany } from '@ember-data/model';\n      export default Model.extend({\n        users: hasMany('user'),\n        owner: belongsTo('user'),\n         posts: hasMany('post')\n      });\n     ```\n      This property would contain the following:\n      ```javascript\n     import Ember from 'ember';\n     import Blog from 'app/models/blog';\n      let relationshipNames = Ember.get(Blog, 'relationshipNames');\n     relationshipNames.hasMany;\n     //=> ['users', 'posts']\n     relationshipNames.belongsTo;\n     //=> ['owner']\n     ```\n      @property relationshipNames\n     @static\n     @type Object\n     @readOnly\n     */\n    relationshipNames: Ember.computed(function () {\n      var names = {\n        hasMany: [],\n        belongsTo: []\n      };\n      this.eachComputedProperty((name, meta) => {\n        if (meta.isRelationship) {\n          names[meta.kind].push(name);\n        }\n      });\n      return names;\n    }),\n\n    /**\n     An array of types directly related to a model. Each type will be\n     included once, regardless of the number of relationships it has with\n     the model.\n      For example, given a model with this definition:\n      ```app/models/blog.js\n     import Model, { belongsTo, hasMany } from '@ember-data/model';\n      export default Model.extend({\n        users: hasMany('user'),\n        owner: belongsTo('user'),\n         posts: hasMany('post')\n      });\n     ```\n      This property would contain the following:\n      ```javascript\n     import Ember from 'ember';\n     import Blog from 'app/models/blog';\n      let relatedTypes = Ember.get(Blog, 'relatedTypes');\n     //=> [ User, Post ]\n     ```\n      @property relatedTypes\n     @static\n     @type Ember.Array\n     @readOnly\n     */\n    relatedTypes: relatedTypesDescriptor,\n\n    /**\n     A map whose keys are the relationships of a model and whose values are\n     relationship descriptors.\n      For example, given a model with this\n     definition:\n      ```app/models/blog.js\n     import Model, { belongsTo, hasMany } from '@ember-data/model';\n      export default Model.extend({\n        users: hasMany('user'),\n        owner: belongsTo('user'),\n         posts: hasMany('post')\n      });\n     ```\n      This property would contain the following:\n      ```javascript\n     import Ember from 'ember';\n     import Blog from 'app/models/blog';\n      let relationshipsByName = Ember.get(Blog, 'relationshipsByName');\n     relationshipsByName.get('users');\n     //=> { key: 'users', kind: 'hasMany', type: 'user', options: Object, isRelationship: true }\n     relationshipsByName.get('owner');\n     //=> { key: 'owner', kind: 'belongsTo', type: 'user', options: Object, isRelationship: true }\n     ```\n      @property relationshipsByName\n     @static\n     @type Map\n     @readOnly\n     */\n    relationshipsByName: relationshipsByNameDescriptor,\n    relationshipsObject: relationshipsObjectDescriptor,\n\n    /**\n     A map whose keys are the fields of the model and whose values are strings\n     describing the kind of the field. A model's fields are the union of all of its\n     attributes and relationships.\n      For example:\n      ```app/models/blog.js\n     import Model, { attr, belongsTo, hasMany } from '@ember-data/model';\n      export default Model.extend({\n        users: hasMany('user'),\n        owner: belongsTo('user'),\n         posts: hasMany('post'),\n         title: attr('string')\n      });\n     ```\n      ```js\n     import Ember from 'ember';\n     import Blog from 'app/models/blog';\n      let fields = Ember.get(Blog, 'fields');\n     fields.forEach(function(kind, field) {\n        console.log(field, kind);\n      });\n      // prints:\n     // users, hasMany\n     // owner, belongsTo\n     // posts, hasMany\n     // title, attribute\n     ```\n      @property fields\n     @static\n     @type Map\n     @readOnly\n     */\n    fields: Ember.computed(function () {\n      var map = new Map();\n      this.eachComputedProperty((name, meta) => {\n        if (meta.isRelationship) {\n          map.set(name, meta.kind);\n        } else if (meta.isAttribute) {\n          map.set(name, 'attribute');\n        }\n      });\n      return map;\n    }).readOnly(),\n\n    /**\n     Given a callback, iterates over each of the relationships in the model,\n     invoking the callback with the name of each relationship and its relationship\n     descriptor.\n      @method eachRelationship\n     @static\n     @param {Function} callback the callback to invoke\n     @param {any} binding the value to which the callback's `this` should be bound\n     */\n    eachRelationship(callback, binding) {\n      Ember.get(this, 'relationshipsByName').forEach((relationship, name) => {\n        callback.call(binding, name, relationship);\n      });\n    },\n\n    /**\n     Given a callback, iterates over each of the types related to a model,\n     invoking the callback with the related type's class. Each type will be\n     returned just once, regardless of how many different relationships it has\n     with a model.\n      @method eachRelatedType\n     @static\n     @param {Function} callback the callback to invoke\n     @param {any} binding the value to which the callback's `this` should be bound\n     */\n    eachRelatedType(callback, binding) {\n      var relationshipTypes = Ember.get(this, 'relatedTypes');\n\n      for (var i = 0; i < relationshipTypes.length; i++) {\n        var type = relationshipTypes[i];\n        callback.call(binding, type);\n      }\n    },\n\n    determineRelationshipType(knownSide, store) {\n      var knownKey = knownSide.key;\n      var knownKind = knownSide.kind;\n      var inverse = this.inverseFor(knownKey, store); // let key;\n\n      var otherKind;\n\n      if (!inverse) {\n        return knownKind === 'belongsTo' ? 'oneToNone' : 'manyToNone';\n      } // key = inverse.name;\n\n\n      otherKind = inverse.kind;\n\n      if (otherKind === 'belongsTo') {\n        return knownKind === 'belongsTo' ? 'oneToOne' : 'manyToOne';\n      } else {\n        return knownKind === 'belongsTo' ? 'oneToMany' : 'manyToMany';\n      }\n    },\n\n    /**\n     A map whose keys are the attributes of the model (properties\n     described by attr) and whose values are the meta object for the\n     property.\n      Example\n      ```app/models/person.js\n     import Model, { attr } from '@ember-data/model';\n      export default Model.extend({\n        firstName: attr('string'),\n        lastName: attr('string'),\n        birthday: attr('date')\n      });\n     ```\n      ```javascript\n     import Ember from 'ember';\n     import Person from 'app/models/person';\n      let attributes = Ember.get(Person, 'attributes')\n      attributes.forEach(function(meta, name) {\n        console.log(name, meta);\n      });\n      // prints:\n     // firstName {type: \"string\", isAttribute: true, options: Object, parentType: function, name: \"firstName\"}\n     // lastName {type: \"string\", isAttribute: true, options: Object, parentType: function, name: \"lastName\"}\n     // birthday {type: \"date\", isAttribute: true, options: Object, parentType: function, name: \"birthday\"}\n     ```\n      @property attributes\n     @static\n     @type {Map}\n     @readOnly\n     */\n    attributes: Ember.computed(function () {\n      var map = new Map();\n      this.eachComputedProperty((name, meta) => {\n        if (meta.isAttribute) {\n          ( !(name !== 'id') && Ember.assert(\"You may not set `id` as an attribute on your model. Please remove any lines that look like: `id: attr('<type>')` from \" + this.toString(), name !== 'id'));\n          meta.name = name;\n          map.set(name, meta);\n        }\n      });\n      return map;\n    }).readOnly(),\n\n    /**\n     A map whose keys are the attributes of the model (properties\n     described by attr) and whose values are type of transformation\n     applied to each attribute. This map does not include any\n     attributes that do not have an transformation type.\n      Example\n      ```app/models/person.js\n     import Model, { attr } from '@ember-data/model';\n      export default Model.extend({\n        firstName: attr(),\n        lastName: attr('string'),\n        birthday: attr('date')\n      });\n     ```\n      ```javascript\n     import Ember from 'ember';\n     import Person from 'app/models/person';\n      let transformedAttributes = Ember.get(Person, 'transformedAttributes')\n      transformedAttributes.forEach(function(field, type) {\n        console.log(field, type);\n      });\n      // prints:\n     // lastName string\n     // birthday date\n     ```\n      @property transformedAttributes\n     @static\n     @type {Map}\n     @readOnly\n     */\n    transformedAttributes: Ember.computed(function () {\n      var map = new Map();\n      this.eachAttribute((key, meta) => {\n        if (meta.type) {\n          map.set(key, meta.type);\n        }\n      });\n      return map;\n    }).readOnly(),\n\n    /**\n     Iterates through the attributes of the model, calling the passed function on each\n     attribute.\n      The callback method you provide should have the following signature (all\n     parameters are optional):\n      ```javascript\n     function(name, meta);\n     ```\n      - `name` the name of the current property in the iteration\n     - `meta` the meta object for the attribute property in the iteration\n      Note that in addition to a callback, you can also pass an optional target\n     object that will be set as `this` on the context.\n      Example\n      ```javascript\n     import Model, { attr } from '@ember-data/model';\n      let Person = Model.extend({\n        firstName: attr('string'),\n        lastName: attr('string'),\n        birthday: attr('date')\n      });\n      Person.eachAttribute(function(name, meta) {\n        console.log(name, meta);\n      });\n      // prints:\n     // firstName {type: \"string\", isAttribute: true, options: Object, parentType: function, name: \"firstName\"}\n     // lastName {type: \"string\", isAttribute: true, options: Object, parentType: function, name: \"lastName\"}\n     // birthday {type: \"date\", isAttribute: true, options: Object, parentType: function, name: \"birthday\"}\n     ```\n      @method eachAttribute\n     @param {Function} callback The callback to execute\n     @param {Object} [binding] the value to which the callback's `this` should be bound\n     @static\n     */\n    eachAttribute(callback, binding) {\n      Ember.get(this, 'attributes').forEach((meta, name) => {\n        callback.call(binding, name, meta);\n      });\n    },\n\n    /**\n     Iterates through the transformedAttributes of the model, calling\n     the passed function on each attribute. Note the callback will not be\n     called for any attributes that do not have an transformation type.\n      The callback method you provide should have the following signature (all\n     parameters are optional):\n      ```javascript\n     function(name, type);\n     ```\n      - `name` the name of the current property in the iteration\n     - `type` a string containing the name of the type of transformed\n     applied to the attribute\n      Note that in addition to a callback, you can also pass an optional target\n     object that will be set as `this` on the context.\n      Example\n      ```javascript\n     import Model, { attr } from '@ember-data/model';\n      let Person = Model.extend({\n        firstName: attr(),\n        lastName: attr('string'),\n        birthday: attr('date')\n      });\n      Person.eachTransformedAttribute(function(name, type) {\n        console.log(name, type);\n      });\n      // prints:\n     // lastName string\n     // birthday date\n     ```\n      @method eachTransformedAttribute\n     @param {Function} callback The callback to execute\n     @param {Object} [binding] the value to which the callback's `this` should be bound\n     @static\n     */\n    eachTransformedAttribute(callback, binding) {\n      Ember.get(this, 'transformedAttributes').forEach((type, name) => {\n        callback.call(binding, name, type);\n      });\n    },\n\n    /**\n     Returns the name of the model class.\n      @method toString\n     @static\n     */\n    toString() {\n      return `model:${Ember.get(this, 'modelName')}`;\n    }\n\n  });\n\n  /**\n    A `ManyArray` is a `MutableArray` that represents the contents of a has-many\n    relationship.\n\n    The `ManyArray` is instantiated lazily the first time the relationship is\n    requested.\n\n    ### Inverses\n\n    Often, the relationships in Ember Data applications will have\n    an inverse. For example, imagine the following models are\n    defined:\n\n    ```app/models/post.js\n    import Model, { hasMany } from '@ember-data/model';\n\n    export default Model.extend({\n      comments: hasMany('comment')\n    });\n    ```\n\n    ```app/models/comment.js\n    import Model, { belongsTo } from '@ember-data/model';\n\n    export default Model.extend({\n      post: belongsTo('post')\n    });\n    ```\n\n    If you created a new instance of `Post` and added\n    a `Comment` record to its `comments` has-many\n    relationship, you would expect the comment's `post`\n    property to be set to the post that contained\n    the has-many.\n\n    We call the record to which a relationship belongs-to the\n    relationship's _owner_.\n\n    @class ManyArray\n    @extends EmberObject\n    @uses Ember.MutableArray, DeprecatedEvented\n  */\n\n  var manyArray = Ember.Object.extend(Ember.MutableArray, Private.DeprecatedEvented, {\n    // here to make TS happy\n    _inverseIsAsync: false,\n    isLoaded: false,\n\n    init() {\n      this._super(...arguments);\n      /**\n      The loading state of this array\n       @property {Boolean} isLoaded\n      */\n\n\n      this.isLoaded = this.isLoaded || false;\n      this.length = 0;\n      /**\n      Used for async `hasMany` arrays\n      to keep track of when they will resolve.\n       @property {Ember.RSVP.Promise} promise\n      @private\n      */\n\n      this.promise = null;\n      /**\n      Metadata associated with the request for async hasMany relationships.\n       Example\n       Given that the server returns the following JSON payload when fetching a\n      hasMany relationship:\n       ```js\n      {\n        \"comments\": [{\n          \"id\": 1,\n          \"comment\": \"This is the first comment\",\n        }, {\n      // ...\n        }],\n         \"meta\": {\n          \"page\": 1,\n          \"total\": 5\n        }\n      }\n      ```\n       You can then access the metadata via the `meta` property:\n       ```js\n      post.get('comments').then(function(comments) {\n        var meta = comments.get('meta');\n       // meta.page => 1\n      // meta.total => 5\n      });\n      ```\n       @property {Object} meta\n      @public\n      */\n      // TODO this is likely broken in our refactor\n\n      this.meta = this.meta || null;\n      /**\n      `true` if the relationship is polymorphic, `false` otherwise.\n       @property {Boolean} isPolymorphic\n      @private\n      */\n\n      this.isPolymorphic = this.isPolymorphic || false;\n      /**\n      The relationship which manages this array.\n       @property {ManyRelationship} relationship\n      @private\n      */\n\n      this.currentState = [];\n      this.flushCanonical(this.initialState, false); // we don't need this anymore, it just prevents garbage collection the records in the initialState\n\n      this.initialState = undefined;\n    },\n\n    // TODO: if(DEBUG)\n    anyUnloaded() {\n      // Use `filter[0]` as opposed to `find` because of IE11\n      var unloaded = this.currentState.filter(im => im._isDematerializing || !im.isLoaded())[0];\n      return !!unloaded;\n    },\n\n    removeUnloadedInternalModel() {\n      for (var i = 0; i < this.currentState.length; ++i) {\n        var internalModel = this.currentState[i];\n        var shouldRemove = void 0;\n\n        {\n          shouldRemove = internalModel._isDematerializing || !internalModel.isLoaded();\n        }\n\n        if (shouldRemove) {\n          this.arrayContentWillChange(i, 1, 0);\n          this.currentState.splice(i, 1);\n          this.set('length', this.currentState.length);\n          this.arrayContentDidChange(i, 1, 0);\n          return true;\n        }\n      }\n\n      return false;\n    },\n\n    objectAt(index) {\n      // TODO we likely need to force flush here\n\n      /*\n      if (this.relationship._willUpdateManyArray) {\n        this.relationship._flushPendingManyArrayUpdates();\n      }\n      */\n      var internalModel = this.currentState[index];\n\n      if (internalModel === undefined) {\n        return;\n      }\n\n      return internalModel.getRecord();\n    },\n\n    flushCanonical(toSet, isInitialized = true) {\n      // It’s possible the parent side of the relationship may have been unloaded by this point\n      if (!Private._objectIsAlive(this)) {\n        return;\n      } // diff to find changes\n\n\n      var diff = Private.diffArray(this.currentState, toSet);\n\n      if (diff.firstChangeIndex !== null) {\n        // it's null if no change found\n        // we found a change\n        this.arrayContentWillChange(diff.firstChangeIndex, diff.removedCount, diff.addedCount);\n        this.set('length', toSet.length);\n        this.currentState = toSet.slice();\n        this.arrayContentDidChange(diff.firstChangeIndex, diff.removedCount, diff.addedCount);\n\n        if (isInitialized && diff.addedCount > 0) {\n          //notify only on additions\n          //TODO only notify if unloaded\n          this.internalModel.manyArrayRecordAdded(this.get('key'));\n        }\n      }\n    },\n\n    replace(idx, amt, objects) {\n      var internalModels;\n\n      if (amt > 0) {\n        internalModels = this.currentState.slice(idx, idx + amt);\n        this.get('recordData').removeFromHasMany(this.get('key'), internalModels.map(im => Private.recordDataFor(im)));\n      }\n\n      if (objects) {\n        ( !(Array.isArray(objects) || Ember.Array.detect(objects)) && Ember.assert('The third argument to replace needs to be an array.', Array.isArray(objects) || Ember.Array.detect(objects)));\n        this.get('recordData').addToHasMany(this.get('key'), objects.map(obj => Private.recordDataFor(obj)), idx);\n      }\n\n      this.retrieveLatest();\n    },\n\n    // Ok this is kinda funky because if buggy we might lose positions, etc.\n    // but current code is this way so shouldn't be too big of a problem\n    retrieveLatest() {\n      var jsonApi = this.get('recordData').getHasMany(this.get('key')); // TODO this is odd, why should ManyArray ever tell itself to resync?\n\n      var internalModels = this.store._getHasManyByJsonApiResource(jsonApi);\n\n      if (jsonApi.meta) {\n        this.set('meta', jsonApi.meta);\n      }\n\n      {\n        if (jsonApi.links) {\n          this.set('links', jsonApi.links);\n        }\n      }\n\n      this.flushCanonical(internalModels, true);\n    },\n\n    /**\n      Reloads all of the records in the manyArray. If the manyArray\n      holds a relationship that was originally fetched using a links url\n      Ember Data will revisit the original links url to repopulate the\n      relationship.\n       If the manyArray holds the result of a `store.query()` reload will\n      re-run the original query.\n       Example\n       ```javascript\n      var user = store.peekRecord('user', 1)\n      user.login().then(function() {\n        user.get('permissions').then(function(permissions) {\n          return permissions.reload();\n        });\n      });\n      ```\n       @method reload\n      @public\n    */\n    reload(options) {\n      // TODO this is odd, we don't ask the store for anything else like this?\n      return this.get('store').reloadManyArray(this, this.get('internalModel'), this.get('key'), options);\n    },\n\n    /**\n      Saves all of the records in the `ManyArray`.\n       Example\n       ```javascript\n      store.findRecord('inbox', 1).then(function(inbox) {\n        inbox.get('messages').then(function(messages) {\n          messages.forEach(function(message) {\n            message.set('isRead', true);\n          });\n          messages.save()\n        });\n      });\n      ```\n       @method save\n      @return {PromiseArray} promise\n    */\n    save() {\n      var manyArray = this;\n      var promiseLabel = 'DS: ManyArray#save ' + Ember.get(this, 'type');\n      var promise = Ember.RSVP.all(this.invoke('save'), promiseLabel).then(() => manyArray, null, 'DS: ManyArray#save return ManyArray');\n      return Private.PromiseArray.create({\n        promise\n      });\n    },\n\n    /**\n      Create a child record within the owner\n       @method createRecord\n      @private\n      @param {Object} hash\n      @return {Model} record\n    */\n    createRecord(hash) {\n      var store = Ember.get(this, 'store');\n      var type = Ember.get(this, 'type');\n      ( !(!Ember.get(this, 'isPolymorphic')) && Ember.assert(`You cannot add '${type.modelName}' records to this polymorphic relationship.`, !Ember.get(this, 'isPolymorphic')));\n      var record = store.createRecord(type.modelName, hash);\n      this.pushObject(record);\n      return record;\n    }\n\n  });\n\n  /**\n   @module @ember-data/model\n   */\n\n  /**\n    A PromiseBelongsTo is a PromiseObject that also proxies certain method calls\n    to the underlying belongsTo model.\n    Right now we proxy:\n\n      * `reload()`\n\n    @class PromiseBelongsTo\n    @extends PromiseObject\n    @private\n  */\n\n  var PromiseBelongsTo = Private.PromiseObject.extend({\n    // we don't proxy meta because we would need to proxy it to the relationship state container\n    //  however, meta on relationships does not trigger change notifications.\n    //  if you need relationship meta, you should do `record.belongsTo(relationshipName).meta()`\n    meta: Ember.computed(function () {\n      ( Ember.assert('You attempted to access meta on the promise for the async belongsTo relationship ' + `${this.get('_belongsToState').modelName}:${this.get('_belongsToState').key}'.` + '\\nUse `record.belongsTo(relationshipName).meta()` instead.', false));\n    }),\n\n    reload(options) {\n      ( !(this.get('content') !== undefined) && Ember.assert('You are trying to reload an async belongsTo before it has been created', this.get('content') !== undefined));\n      var {\n        key,\n        store,\n        originatingInternalModel\n      } = this._belongsToState;\n      return store.reloadBelongsTo(this, originatingInternalModel, key, options).then(() => this);\n    }\n\n  });\n\n  /**\n   @module @ember-data/model\n   */\n\n  /**\n    A PromiseManyArray is a PromiseArray that also proxies certain method calls\n    to the underlying manyArray.\n    Right now we proxy:\n\n      * `reload()`\n      * `createRecord()`\n      * `on()`\n      * `one()`\n      * `trigger()`\n      * `off()`\n      * `has()`\n\n    @class PromiseManyArray\n    @extends Ember.ArrayProxy\n    @private\n  */\n\n  var PromiseManyArray = Private.PromiseArray.extend({\n    links:  Ember.computed.reads('content.links') ,\n\n    reload(options) {\n      ( !(Ember.get(this, 'content')) && Ember.assert('You are trying to reload an async manyArray before it has been created', Ember.get(this, 'content')));\n      this.set('promise', this.get('content').reload(options));\n      return this;\n    },\n\n    createRecord: proxyToContent('createRecord'),\n    on: proxyToContent('on'),\n    one: proxyToContent('one'),\n    trigger: proxyToContent('trigger'),\n    off: proxyToContent('off'),\n    has: proxyToContent('has')\n  });\n\n  function proxyToContent(method) {\n    return function () {\n      return Ember.get(this, 'content')[method](...arguments);\n    };\n  }\n\n  /*\n      In case someone defined a relationship to a mixin, for example:\n      ```\n        let Comment = Model.extend({\n          owner: belongsTo('commentable'. { polymorphic: true })\n        });\n        let Commentable = Ember.Mixin.create({\n          comments: hasMany('comment')\n        });\n      ```\n      we want to look up a Commentable class which has all the necessary\n      relationship metadata. Thus, we look up the mixin and create a mock\n      Model, so we can access the relationship CPs of the mixin (`comments`)\n      in this case\n    */\n  function modelForMixin(store, normalizedModelName) {\n    var owner = Ember.getOwner(store);\n    var MaybeMixin = owner.factoryFor(`mixin:${normalizedModelName}`);\n    var mixin = MaybeMixin && MaybeMixin.class;\n\n    if (mixin) {\n      var ModelForMixin = Model.extend(mixin);\n      ModelForMixin.reopenClass({\n        __isMixin: true,\n        __mixin: mixin\n      }); //Cache the class as a model\n\n      owner.register('model:' + normalizedModelName, ModelForMixin);\n    }\n\n    return owner.factoryFor(`model:${normalizedModelName}`);\n  }\n\n  exports.Errors = Errors;\n  exports.ManyArray = manyArray;\n  exports.Model = Model;\n  exports.PromiseBelongsTo = PromiseBelongsTo;\n  exports.PromiseManyArray = PromiseManyArray;\n  exports._modelForMixin = modelForMixin;\n  exports.attr = attr$1;\n  exports.belongsTo = belongsTo$1;\n  exports.hasMany = hasMany$1;\n\n  Object.defineProperty(exports, '__esModule', { value: true });\n\n});\n","define(\"@ember-data/model/index\", [\"exports\", \"@ember-data/model/-private\"], function (_exports, _private) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"default\", {\n    enumerable: true,\n    get: function () {\n      return _private.Model;\n    }\n  });\n  Object.defineProperty(_exports, \"attr\", {\n    enumerable: true,\n    get: function () {\n      return _private.attr;\n    }\n  });\n  Object.defineProperty(_exports, \"belongsTo\", {\n    enumerable: true,\n    get: function () {\n      return _private.belongsTo;\n    }\n  });\n  Object.defineProperty(_exports, \"hasMany\", {\n    enumerable: true,\n    get: function () {\n      return _private.hasMany;\n    }\n  });\n});","define(\"@ember-data/private-build-infra/available-packages\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n  var _default = {\n    HAS_EMBER_DATA_PACKAGE: 'ember-data',\n    HAS_STORE_PACKAGE: '@ember-data/store',\n    HAS_MODEL_PACKAGE: '@ember-data/model',\n    HAS_RECORD_DATA_PACKAGE: '@ember-data/record-data',\n    HAS_ADAPTER_PACKAGE: '@ember-data/adapter',\n    HAS_SERIALIZER_PACKAGE: '@ember-data/serializer',\n    HAS_DEBUG_PACKAGE: '@ember-data/debug'\n  };\n  _exports.default = _default;\n});","define(\"@ember-data/private-build-infra/current-deprecations\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n   * ## Deprecations\n   *\n   * EmberData allows users to remove code that exists to support deprecated\n   * behaviors.\n   *\n   * If your app has resolved all deprecations present in a given version,\n   * you may specify that version as your \"compatibility\" version to remove\n   * the code that supported the deprecated behavior from your app.\n   *\n   * For instance, if a deprecation was introduced in 3.13, and the app specifies\n   * 3.13 as its minimum version compatibility, any deprecations introduced before\n   * or during 3.13 would be stripped away.\n   *\n   * An app can use a different version than what it specifies as it's compatibility\n   * version. For instance, an App could be using `3.16` while specifying compatibility\n   * with `3.12`. This would remove any deprecations that were present in or before `3.12`\n   * but keep support for anything deprecated in or abvoe `3.13`.\n   *\n   * ### Configuring Compatibility\n   *\n   * To configure your compatibility version, set the `compatWith` to the version you\n   * are compatible with on the `emberData` config in your `ember-cli-build.js` file.\n   *\n   * ```js\n   * let app = new EmberApp(defaults, {\n   *   emberData: {\n   *     compatWith: '3.12',\n   *   },\n   * });\n   * ```\n   *\n   * The complete list of which versions specific deprecations will be removed in\n   * can be found [here](https://github.com/emberjs/data/tree/master/packages/private-build-infra/addon/current-deprecations.ts \"List of EmberData Deprecations\")\n   *\n   * @module @ember-data/deprecations\n   * @main @ember-data/deprecations\n   */\n  var _default = {\n    DEPRECATE_CATCH_ALL: '99.0',\n    DEPRECATE_EVENTED_API_USAGE: '3.12',\n    DEPRECATE_RECORD_LIFECYCLE_EVENT_METHODS: '3.12',\n    DEPRECATE_MODEL_DATA: '3.8',\n    DEPRECATE_MODEL_TOJSON: '3.15',\n    DEPRECATE_LEGACY_TEST_HELPER_SUPPORT: '3.15',\n    DEPRECATE_LEGACY_TEST_REGISTRATIONS: '3.15',\n    DEPRECATE_DEFAULT_SERIALIZER: '3.15',\n    DEPRECATE_DEFAULT_ADAPTER: '3.15',\n    DEPRECATE_METHOD_CALLS_ON_DESTROY_STORE: '3.15',\n    DEPRECATE_MISMATCHED_INVERSE_RELATIONSHIP_DATA: '3.12',\n    DEPRECATE_SERIALIZER_QUERY_RECORD_ARRAY_RESPONSE: '3.4',\n    DEPRECATE_BELONGS_TO_REFERENCE_PUSH: '3.16'\n  };\n  _exports.default = _default;\n});","define(\"@ember-data/private-build-infra/deprecations\", [\"exports\", \"@ember-data/private-build-infra/current-deprecations\"], function (_exports, _currentDeprecations) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.DEPRECATE_MISMATCHED_INVERSE_RELATIONSHIP_DATA = _exports.DEPRECATE_SERIALIZER_QUERY_RECORD_ARRAY_RESPONSE = _exports.DEPRECATE_METHOD_CALLS_ON_DESTROY_STORE = _exports.DEPRECATE_DEFAULT_ADAPTER = _exports.DEPRECATE_DEFAULT_SERIALIZER = _exports.DEPRECATE_LEGACY_TEST_REGISTRATIONS = _exports.DEPRECATE_LEGACY_TEST_HELPER_SUPPORT = _exports.DEPRECATE_MODEL_TOJSON = _exports.DEPRECATE_MODEL_DATA = _exports.DEPRECATE_RECORD_LIFECYCLE_EVENT_METHODS = _exports.DEPRECATE_EVENTED_API_USAGE = _exports.DEPRECATE_CATCH_ALL = void 0;\n\n  function deprecationState(deprecationName) {\n    // if we hit this at runtime and the deprecation exists it is always activated\n    return deprecationName in _currentDeprecations.default;\n  } // deprecations\n\n\n  const DEPRECATE_CATCH_ALL = deprecationState('DEPRECATE_CATCH_ALL');\n  _exports.DEPRECATE_CATCH_ALL = DEPRECATE_CATCH_ALL;\n  const DEPRECATE_EVENTED_API_USAGE = deprecationState('DEPRECATE_EVENTED_API_USAGE');\n  _exports.DEPRECATE_EVENTED_API_USAGE = DEPRECATE_EVENTED_API_USAGE;\n  const DEPRECATE_RECORD_LIFECYCLE_EVENT_METHODS = deprecationState('DEPRECATE_RECORD_LIFECYCLE_EVENT_METHODS');\n  _exports.DEPRECATE_RECORD_LIFECYCLE_EVENT_METHODS = DEPRECATE_RECORD_LIFECYCLE_EVENT_METHODS;\n  const DEPRECATE_MODEL_DATA = deprecationState('DEPRECATE_MODEL_DATA');\n  _exports.DEPRECATE_MODEL_DATA = DEPRECATE_MODEL_DATA;\n  const DEPRECATE_MODEL_TOJSON = deprecationState('DEPRECATE_MODEL_TOJSON');\n  _exports.DEPRECATE_MODEL_TOJSON = DEPRECATE_MODEL_TOJSON;\n  const DEPRECATE_LEGACY_TEST_HELPER_SUPPORT = deprecationState('DEPRECATE_LEGACY_TEST_HELPER_SUPPORT');\n  _exports.DEPRECATE_LEGACY_TEST_HELPER_SUPPORT = DEPRECATE_LEGACY_TEST_HELPER_SUPPORT;\n  const DEPRECATE_LEGACY_TEST_REGISTRATIONS = deprecationState('DEPRECATE_LEGACY_TEST_REGISTRATIONS');\n  _exports.DEPRECATE_LEGACY_TEST_REGISTRATIONS = DEPRECATE_LEGACY_TEST_REGISTRATIONS;\n  const DEPRECATE_DEFAULT_SERIALIZER = deprecationState('DEPRECATE_DEFAULT_SERIALIZER');\n  _exports.DEPRECATE_DEFAULT_SERIALIZER = DEPRECATE_DEFAULT_SERIALIZER;\n  const DEPRECATE_DEFAULT_ADAPTER = deprecationState('DEPRECATE_DEFAULT_ADAPTER');\n  _exports.DEPRECATE_DEFAULT_ADAPTER = DEPRECATE_DEFAULT_ADAPTER;\n  const DEPRECATE_METHOD_CALLS_ON_DESTROY_STORE = deprecationState('DEPRECATE_METHOD_CALLS_ON_DESTROY_STORE');\n  _exports.DEPRECATE_METHOD_CALLS_ON_DESTROY_STORE = DEPRECATE_METHOD_CALLS_ON_DESTROY_STORE;\n  const DEPRECATE_SERIALIZER_QUERY_RECORD_ARRAY_RESPONSE = deprecationState('DEPRECATE_SERIALIZER_QUERY_RECORD_ARRAY_RESPONSE');\n  _exports.DEPRECATE_SERIALIZER_QUERY_RECORD_ARRAY_RESPONSE = DEPRECATE_SERIALIZER_QUERY_RECORD_ARRAY_RESPONSE;\n  const DEPRECATE_MISMATCHED_INVERSE_RELATIONSHIP_DATA = deprecationState('DEPRECATE_MISMATCHED_INVERSE_RELATIONSHIP_DATA');\n  _exports.DEPRECATE_MISMATCHED_INVERSE_RELATIONSHIP_DATA = DEPRECATE_MISMATCHED_INVERSE_RELATIONSHIP_DATA;\n});","define(\"@ember-data/private-build-infra/index\", [\"exports\", \"require\", \"@ember-data/private-build-infra/available-packages\"], function (_exports, _require, _availablePackages) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.HAS_RECORD_DATA_PACKAGE = _exports.HAS_DEBUG_PACKAGE = _exports.HAS_SERIALIZER_PACKAGE = _exports.HAS_ADAPTER_PACKAGE = _exports.HAS_MODEL_PACKAGE = _exports.HAS_STORE_PACKAGE = _exports.HAS_EMBER_DATA_PACKAGE = void 0;\n\n  function flagState(flag) {\n    const packageName = _availablePackages.default[flag];\n    return (0, _require.has)(packageName) || false;\n  }\n\n  const HAS_EMBER_DATA_PACKAGE = flagState('HAS_EMBER_DATA_PACKAGE');\n  _exports.HAS_EMBER_DATA_PACKAGE = HAS_EMBER_DATA_PACKAGE;\n  const HAS_STORE_PACKAGE = flagState('HAS_STORE_PACKAGE');\n  _exports.HAS_STORE_PACKAGE = HAS_STORE_PACKAGE;\n  const HAS_MODEL_PACKAGE = flagState('HAS_MODEL_PACKAGE');\n  _exports.HAS_MODEL_PACKAGE = HAS_MODEL_PACKAGE;\n  const HAS_ADAPTER_PACKAGE = flagState('HAS_ADAPTER_PACKAGE');\n  _exports.HAS_ADAPTER_PACKAGE = HAS_ADAPTER_PACKAGE;\n  const HAS_SERIALIZER_PACKAGE = flagState('HAS_SERIALIZER_PACKAGE');\n  _exports.HAS_SERIALIZER_PACKAGE = HAS_SERIALIZER_PACKAGE;\n  const HAS_DEBUG_PACKAGE = flagState('HAS_DEBUG_PACKAGE');\n  _exports.HAS_DEBUG_PACKAGE = HAS_DEBUG_PACKAGE;\n  const HAS_RECORD_DATA_PACKAGE = flagState('HAS_RECORD_DATA_PACKAGE');\n  _exports.HAS_RECORD_DATA_PACKAGE = HAS_RECORD_DATA_PACKAGE;\n});","define('@ember-data/record-data/-private', ['exports', '@ember-data/store/-private', '@ember-data/store/-debug', '@ember/ordered-set'], function (exports, Private, Debug, EmberOrderedSet) { 'use strict';\n\n  EmberOrderedSet = EmberOrderedSet && Object.prototype.hasOwnProperty.call(EmberOrderedSet, 'default') ? EmberOrderedSet['default'] : EmberOrderedSet;\n\n  // Used by the store to normalize IDs entering the store.  Despite the fact\n  // that developers may provide IDs as numbers (e.g., `store.findRecord('person', 1)`),\n  // it is important that internally we use strings, since IDs may be serialized\n  // and lose type information.  For example, Ember's router may put a record's\n  // ID into the URL, and if we later try to deserialize that URL and find the\n  // corresponding record, we will not know if it is a string or a number.\n  function coerceId(id) {\n    if (id === null || id === undefined || id === '') {\n      return null;\n    }\n\n    if (typeof id === 'string') {\n      return id;\n    }\n\n    if (typeof id === 'symbol') {\n      return id.toString();\n    }\n\n    return '' + id;\n  }\n\n  /*\n    This method normalizes a link to an \"links object\". If the passed link is\n    already an object it's returned without any modifications.\n\n    See http://jsonapi.org/format/#document-links for more information.\n\n    @method _normalizeLink\n    @internal\n    @param {String} link\n    @return {Object|null}\n  */\n  function _normalizeLink(link) {\n    switch (typeof link) {\n      case 'object':\n        return link;\n\n      case 'string':\n        return {\n          href: link\n        };\n    }\n\n    return null;\n  }\n\n  class EmberDataOrderedSet extends EmberOrderedSet {\n    static create() {\n      return new this();\n    }\n\n    addWithIndex(obj, idx) {\n      var guid = Ember.guidFor(obj);\n      var presenceSet = this.presenceSet;\n      var list = this.list;\n\n      if (presenceSet[guid] === true) {\n        return;\n      }\n\n      presenceSet[guid] = true;\n\n      if (idx === undefined || idx === null) {\n        list.push(obj);\n      } else {\n        list.splice(idx, 0, obj);\n      }\n\n      this.size += 1;\n      return this;\n    }\n\n  }\n\n  function relationshipsFor(instance) {\n    var recordData = Private.recordDataFor(instance) || instance;\n    return recordData._relationships;\n  }\n  function relationshipStateFor(instance, propertyName) {\n    return relationshipsFor(instance).get(propertyName);\n  }\n  function implicitRelationshipsFor(instance) {\n    var recordData = Private.recordDataFor(instance) || instance;\n    return recordData._implicitRelationships;\n  }\n  function implicitRelationshipStateFor(instance, propertyName) {\n    return implicitRelationshipsFor(instance)[propertyName];\n  }\n\n  class Relationship {\n    constructor(store, inverseKey, relationshipMeta, recordData, inverseIsAsync) {\n      this.inverseIsAsync = void 0;\n      this.kind = void 0;\n      this.recordData = void 0;\n      this.members = void 0;\n      this.canonicalMembers = void 0;\n      this.store = void 0;\n      this.key = void 0;\n      this.inverseKey = void 0;\n      this.isAsync = void 0;\n      this.isPolymorphic = void 0;\n      this.relationshipMeta = void 0;\n      this.inverseKeyForImplicit = void 0;\n      this.meta = void 0;\n      this.__inverseMeta = void 0;\n      this._tempModelName = void 0;\n      this.shouldForceReload = false;\n      this.relationshipIsStale = void 0;\n      this.hasDematerializedInverse = void 0;\n      this.hasAnyRelationshipData = void 0;\n      this.relationshipIsEmpty = void 0;\n      this.hasFailedLoadAttempt = false;\n      this.links = void 0;\n      this.willSync = void 0;\n      this.inverseIsAsync = inverseIsAsync;\n      this.kind = relationshipMeta.kind;\n      var async = relationshipMeta.options.async;\n      var polymorphic = relationshipMeta.options.polymorphic;\n      this.recordData = recordData;\n      this.members = new EmberDataOrderedSet();\n      this.canonicalMembers = new EmberDataOrderedSet();\n      this.store = store;\n      this.key = relationshipMeta.key || null;\n      this.inverseKey = inverseKey;\n      this.isAsync = typeof async === 'undefined' ? true : async;\n      this.isPolymorphic = typeof polymorphic === 'undefined' ? false : polymorphic;\n      this.relationshipMeta = relationshipMeta; //This probably breaks for polymorphic relationship in complex scenarios, due to\n      //multiple possible modelNames\n\n      this.inverseKeyForImplicit = this._tempModelName + this.key;\n      this.meta = null;\n      this.__inverseMeta = undefined;\n      /*\n       This flag forces fetch. `true` for a single request once `reload()`\n         has been called `false` at all other times.\n      */\n      // this.shouldForceReload = false;\n\n      /*\n         This flag indicates whether we should\n          re-fetch the relationship the next time\n          it is accessed.\n           The difference between this flag and `shouldForceReload`\n          is in how we treat the presence of partially missing data:\n            - for a forced reload, we will reload the link or EVERY record\n            - for a stale reload, we will reload the link (if present) else only MISSING records\n           Ideally these flags could be merged, but because we don't give the\n          request layer the option of deciding how to resolve the data being queried\n          we are forced to differentiate for now.\n           It is also possible for a relationship to remain stale after a forced reload; however,\n          in this case `hasFailedLoadAttempt` ought to be `true`.\n         false when\n          => recordData.isNew() on initial setup\n          => a previously triggered request has resolved\n          => we get relationship data via push\n         true when\n          => !recordData.isNew() on initial setup\n          => an inverse has been unloaded\n          => we get a new link for the relationship\n         TODO @runspired unskip the acceptance tests and fix these flags\n       */\n\n      this.relationshipIsStale = false;\n      /*\n       This flag indicates whether we should\n        **partially** re-fetch the relationship the\n        next time it is accessed.\n       false when\n        => initial setup\n        => a previously triggered request has resolved\n       true when\n        => an inverse has been unloaded\n      */\n\n      this.hasDematerializedInverse = false;\n      /*\n        This flag indicates whether we should consider the content\n         of this relationship \"known\".\n         If we have no relationship knowledge, and the relationship\n         is `async`, we will attempt to fetch the relationship on\n         access if it is also stale.\n        Snapshot uses this to tell the difference between unknown\n        (`undefined`) or empty (`null`). The reason for this is that\n        we wouldn't want to serialize  unknown relationships as `null`\n        as that might overwrite remote state.\n         All relationships for a newly created (`store.createRecord()`) are\n         considered known (`hasAnyRelationshipData === true`).\n         true when\n          => we receive a push with either new data or explicit empty (`[]` or `null`)\n          => the relationship is a belongsTo and we have received data from\n               the other side.\n         false when\n          => we have received no signal about what data belongs in this relationship\n          => the relationship is a hasMany and we have only received data from\n              the other side.\n       */\n\n      this.hasAnyRelationshipData = false;\n      /*\n        Flag that indicates whether an empty relationship is explicitly empty\n          (signaled by push giving us an empty array or null relationship)\n          e.g. an API response has told us that this relationship is empty.\n         Thus far, it does not appear that we actually need this flag; however,\n          @runspired has found it invaluable when debugging relationship tests\n          to determine whether (and why if so) we are in an incorrect state.\n         true when\n          => we receive a push with explicit empty (`[]` or `null`)\n          => we have received no signal about what data belongs in this relationship\n          => on initial create (as no signal is known yet)\n         false at all other times\n       */\n\n      this.relationshipIsEmpty = true;\n      /*\n        Flag def here for reference, defined as getter in has-many.js / belongs-to.js\n         true when\n          => hasAnyRelationshipData is true\n          AND\n          => members (NOT canonicalMembers) @each !isEmpty\n         TODO, consider changing the conditional here from !isEmpty to !hiddenFromRecordArrays\n      */\n      // TODO do we want this anymore? Seems somewhat useful\n      //   especially if we rename to `hasUpdatedLink`\n      //   which would tell us slightly more about why the\n      //   relationship is stale\n      // this.updatedLink = false;\n    }\n\n    get isNew() {\n      return this.recordData.isNew();\n    }\n\n    _inverseIsAsync() {\n      return !!this.inverseIsAsync;\n    }\n\n    _inverseIsSync() {\n      return !!(this.inverseKey && !this.inverseIsAsync);\n    }\n\n    _hasSupportForImplicitRelationships(recordData) {\n      return recordData._implicitRelationships !== undefined && recordData._implicitRelationships !== null;\n    }\n\n    _hasSupportForRelationships(recordData) {\n      return recordData._relationships !== undefined && recordData._relationships !== null;\n    }\n\n    get _inverseMeta() {\n      if (this.__inverseMeta === undefined) {\n        var inverseMeta = null;\n\n        if (this.inverseKey) {\n          // We know we have a full inverse relationship\n          var type = this.relationshipMeta.type;\n          var inverseModelClass = this.store.modelFor(type);\n          var inverseRelationships = Ember.get(inverseModelClass, 'relationshipsByName');\n          inverseMeta = inverseRelationships.get(this.inverseKey);\n        }\n\n        this.__inverseMeta = inverseMeta;\n      }\n\n      return this.__inverseMeta;\n    }\n\n    recordDataDidDematerialize() {\n      var inverseKey = this.inverseKey;\n\n      if (!inverseKey) {\n        return;\n      } // we actually want a union of members and canonicalMembers\n      // they should be disjoint but currently are not due to a bug\n\n\n      this.forAllMembers(inverseRecordData => {\n        if (!this._hasSupportForRelationships(inverseRecordData)) {\n          return;\n        }\n\n        var relationship = relationshipStateFor(inverseRecordData, inverseKey);\n\n        var belongsToRelationship = inverseRecordData.getBelongsTo(inverseKey)._relationship; // For canonical members, it is possible that inverseRecordData has already been associated to\n        // to another record. For such cases, do not dematerialize the inverseRecordData\n\n\n        if (!belongsToRelationship || !belongsToRelationship.inverseRecordData || this.recordData === belongsToRelationship.inverseRecordData) {\n          relationship.inverseDidDematerialize(this.recordData);\n        }\n      });\n    }\n\n    forAllMembers(callback) {\n      var seen = Object.create(null);\n\n      for (var i = 0; i < this.members.list.length; i++) {\n        var inverseInternalModel = this.members.list[i];\n        var id = Ember.guidFor(inverseInternalModel);\n\n        if (!seen[id]) {\n          seen[id] = true;\n          callback(inverseInternalModel);\n        }\n      }\n\n      for (var _i = 0; _i < this.canonicalMembers.list.length; _i++) {\n        var _inverseInternalModel = this.canonicalMembers.list[_i];\n\n        var _id = Ember.guidFor(_inverseInternalModel);\n\n        if (!seen[_id]) {\n          seen[_id] = true;\n          callback(_inverseInternalModel);\n        }\n      }\n    }\n\n    inverseDidDematerialize(inverseRecordData) {\n      if (!this.isAsync || inverseRecordData && inverseRecordData.isNew()) {\n        // unloading inverse of a sync relationship is treated as a client-side\n        // delete, so actually remove the models don't merely invalidate the cp\n        // cache.\n        // if the record being unloaded only exists on the client, we similarly\n        // treat it as a client side delete\n        this.removeRecordDataFromOwn(inverseRecordData);\n        this.removeCanonicalRecordDataFromOwn(inverseRecordData);\n        this.setRelationshipIsEmpty(true);\n      } else {\n        this.setHasDematerializedInverse(true);\n      }\n    }\n\n    updateMeta(meta) {\n      this.meta = meta;\n    }\n\n    clear() {\n      var members = this.members.list;\n\n      while (members.length > 0) {\n        var member = members[0];\n        this.removeRecordData(member);\n      }\n\n      var canonicalMembers = this.canonicalMembers.list;\n\n      while (canonicalMembers.length > 0) {\n        var _member = canonicalMembers[0];\n        this.removeCanonicalRecordData(_member);\n      }\n    }\n\n    removeAllRecordDatasFromOwn() {\n      this.setRelationshipIsStale(true);\n      this.members.clear();\n    }\n\n    removeAllCanonicalRecordDatasFromOwn() {\n      this.canonicalMembers.clear();\n      this.flushCanonicalLater();\n    }\n\n    removeRecordDatas(recordDatas) {\n      recordDatas.forEach(recordData => this.removeRecordData(recordData));\n    }\n\n    addRecordDatas(recordDatas, idx) {\n      recordDatas.forEach(recordData => {\n        this.addRecordData(recordData, idx);\n\n        if (idx !== undefined) {\n          idx++;\n        }\n      });\n    }\n\n    addCanonicalRecordDatas(recordDatas, idx) {\n      for (var i = 0; i < recordDatas.length; i++) {\n        if (idx !== undefined) {\n          this.addCanonicalRecordData(recordDatas[i], i + idx);\n        } else {\n          this.addCanonicalRecordData(recordDatas[i]);\n        }\n      }\n    }\n\n    addCanonicalRecordData(recordData, idx) {\n      if (!this.canonicalMembers.has(recordData)) {\n        this.canonicalMembers.add(recordData);\n        this.setupInverseRelationship(recordData);\n      }\n\n      this.flushCanonicalLater();\n      this.setHasAnyRelationshipData(true);\n    }\n\n    setupInverseRelationship(recordData) {\n      if (this.inverseKey) {\n        if (!this._hasSupportForRelationships(recordData)) {\n          return;\n        }\n\n        var relationship = relationshipStateFor(recordData, this.inverseKey); // if we have only just initialized the inverse relationship, then it\n        // already has this.recordData in its canonicalMembers, so skip the\n        // unnecessary work.  The exception to this is polymorphic\n        // relationships whose members are determined by their inverse, as those\n        // relationships cannot efficiently find their inverse payloads.\n\n        relationship.addCanonicalRecordData(this.recordData);\n      } else {\n        if (!this._hasSupportForImplicitRelationships(recordData)) {\n          return;\n        }\n\n        var relationships = recordData._implicitRelationships;\n        var _relationship = relationships[this.inverseKeyForImplicit];\n\n        if (!_relationship) {\n          _relationship = relationships[this.inverseKeyForImplicit] = new Relationship(this.store, this.key, {\n            options: {\n              async: this.isAsync\n            }\n          }, recordData);\n        }\n\n        _relationship.addCanonicalRecordData(this.recordData);\n      }\n    }\n\n    removeCanonicalRecordDatas(recordDatas, idx) {\n      for (var i = 0; i < recordDatas.length; i++) {\n        if (idx !== undefined) {\n          this.removeCanonicalRecordData(recordDatas[i], i + idx);\n        } else {\n          this.removeCanonicalRecordData(recordDatas[i]);\n        }\n      }\n    }\n\n    removeCanonicalRecordData(recordData, idx) {\n      if (this.canonicalMembers.has(recordData)) {\n        this.removeCanonicalRecordDataFromOwn(recordData);\n\n        if (this.inverseKey) {\n          this.removeCanonicalRecordDataFromInverse(recordData);\n        } else {\n          if (this._hasSupportForImplicitRelationships(recordData) && recordData._implicitRelationships[this.inverseKeyForImplicit]) {\n            recordData._implicitRelationships[this.inverseKeyForImplicit].removeCanonicalRecordData(this.recordData);\n          }\n        }\n      }\n\n      this.flushCanonicalLater();\n    }\n\n    addRecordData(recordData, idx) {\n      if (!this.members.has(recordData)) {\n        this.members.addWithIndex(recordData, idx);\n        this.notifyRecordRelationshipAdded(recordData, idx);\n\n        if (this._hasSupportForRelationships(recordData) && this.inverseKey) {\n          relationshipStateFor(recordData, this.inverseKey).addRecordData(this.recordData);\n        } else {\n          if (this._hasSupportForImplicitRelationships(recordData)) {\n            if (!recordData._implicitRelationships[this.inverseKeyForImplicit]) {\n              recordData._implicitRelationships[this.inverseKeyForImplicit] = new Relationship(this.store, this.key, {\n                options: {\n                  async: this.isAsync\n                }\n              }, recordData, this.isAsync);\n            }\n\n            recordData._implicitRelationships[this.inverseKeyForImplicit].addRecordData(this.recordData);\n          }\n        }\n      }\n\n      this.setHasAnyRelationshipData(true);\n    }\n\n    removeRecordData(recordData) {\n      if (this.members.has(recordData)) {\n        this.removeRecordDataFromOwn(recordData);\n\n        if (this.inverseKey) {\n          this.removeRecordDataFromInverse(recordData);\n        } else {\n          if (this._hasSupportForImplicitRelationships(recordData) && recordData._implicitRelationships[this.inverseKeyForImplicit]) {\n            recordData._implicitRelationships[this.inverseKeyForImplicit].removeRecordData(this.recordData);\n          }\n        }\n      }\n    }\n\n    removeRecordDataFromInverse(recordData) {\n      if (!this._hasSupportForRelationships(recordData)) {\n        return;\n      }\n\n      if (this.inverseKey) {\n        var inverseRelationship = relationshipStateFor(recordData, this.inverseKey); //Need to check for existence, as the record might unloading at the moment\n\n        if (inverseRelationship) {\n          inverseRelationship.removeRecordDataFromOwn(this.recordData);\n        }\n      }\n    }\n\n    removeRecordDataFromOwn(recordData, idx) {\n      this.members.delete(recordData);\n    }\n\n    removeCanonicalRecordDataFromInverse(recordData) {\n      if (!this._hasSupportForRelationships(recordData)) {\n        return;\n      }\n\n      if (this.inverseKey) {\n        var inverseRelationship = relationshipStateFor(recordData, this.inverseKey); //Need to check for existence, as the record might unloading at the moment\n\n        if (inverseRelationship) {\n          inverseRelationship.removeCanonicalRecordDataFromOwn(this.recordData);\n        }\n      }\n    }\n\n    removeCanonicalRecordDataFromOwn(recordData, idx) {\n      this.canonicalMembers.delete(recordData);\n      this.flushCanonicalLater();\n    }\n    /*\n      Call this method once a record deletion has been persisted\n      to purge it from BOTH current and canonical state of all\n      relationships.\n       @method removeCompletelyFromInverse\n      @private\n     */\n\n\n    removeCompletelyFromInverse() {\n      if (!this.inverseKey && !this.inverseKeyForImplicit) {\n        return;\n      } // we actually want a union of members and canonicalMembers\n      // they should be disjoint but currently are not due to a bug\n\n\n      var seen = Object.create(null);\n      var recordData = this.recordData;\n      var unload;\n\n      if (this.inverseKey) {\n        unload = inverseRecordData => {\n          var id = Ember.guidFor(inverseRecordData);\n\n          if (this._hasSupportForRelationships(inverseRecordData) && seen[id] === undefined) {\n            if (this.inverseKey) {\n              var relationship = relationshipStateFor(inverseRecordData, this.inverseKey);\n              relationship.removeCompletelyFromOwn(recordData);\n            }\n\n            seen[id] = true;\n          }\n        };\n      } else {\n        unload = inverseRecordData => {\n          var id = Ember.guidFor(inverseRecordData);\n\n          if (this._hasSupportForImplicitRelationships(inverseRecordData) && seen[id] === undefined) {\n            var relationship = implicitRelationshipStateFor(inverseRecordData, this.inverseKeyForImplicit);\n            relationship.removeCompletelyFromOwn(recordData);\n            seen[id] = true;\n          }\n        };\n      }\n\n      this.members.forEach(unload);\n      this.canonicalMembers.forEach(unload);\n\n      if (!this.isAsync) {\n        this.clear();\n      }\n    }\n    /*\n      Removes the given RecordData from BOTH canonical AND current state.\n       This method is useful when either a deletion or a rollback on a new record\n      needs to entirely purge itself from an inverse relationship.\n     */\n\n\n    removeCompletelyFromOwn(recordData) {\n      this.canonicalMembers.delete(recordData);\n      this.members.delete(recordData);\n    }\n\n    flushCanonical() {\n      var list = this.members.list;\n      this.willSync = false; //a hack for not removing new RecordDatas\n      //TODO remove once we have proper diffing\n\n      var newRecordDatas = [];\n\n      for (var i = 0; i < list.length; i++) {\n        // TODO Igor deal with this\n        if (list[i].isNew()) {\n          newRecordDatas.push(list[i]);\n        }\n      } //TODO(Igor) make this less abysmally slow\n\n\n      this.members = this.canonicalMembers.copy();\n\n      for (var _i2 = 0; _i2 < newRecordDatas.length; _i2++) {\n        this.members.add(newRecordDatas[_i2]);\n      }\n    }\n\n    flushCanonicalLater() {\n      if (this.willSync) {\n        return;\n      }\n\n      this.willSync = true; // Reaching back into the store to use ED's runloop\n\n      this.store._updateRelationshipState(this);\n    }\n\n    updateLinks(links) {\n      this.links = links;\n    }\n\n    updateRecordDatasFromAdapter(recordDatas) {\n      this.setHasAnyRelationshipData(true); //TODO(Igor) move this to a proper place\n      //TODO Once we have adapter support, we need to handle updated and canonical changes\n\n      this.computeChanges(recordDatas);\n    }\n\n    computeChanges(recordDatas) {}\n\n    notifyRecordRelationshipAdded(recordData, idxs) {}\n\n    setHasAnyRelationshipData(value) {\n      this.hasAnyRelationshipData = value;\n    }\n\n    setHasDematerializedInverse(value) {\n      this.hasDematerializedInverse = value;\n    }\n\n    setRelationshipIsStale(value) {\n      this.relationshipIsStale = value;\n    }\n\n    setRelationshipIsEmpty(value) {\n      this.relationshipIsEmpty = value;\n    }\n\n    setShouldForceReload(value) {\n      this.shouldForceReload = value;\n    }\n\n    setHasFailedLoadAttempt(value) {\n      this.hasFailedLoadAttempt = value;\n    }\n    /*\n     `push` for a relationship allows the store to push a JSON API Relationship\n     Object onto the relationship. The relationship will then extract and set the\n     meta, data and links of that relationship.\n      `push` use `updateMeta`, `updateData` and `updateLink` to update the state\n     of the relationship.\n     */\n\n\n    push(payload, initial) {\n      var hasRelationshipDataProperty = false;\n      var hasLink = false;\n\n      if (payload.meta) {\n        this.updateMeta(payload.meta);\n      }\n\n      if (payload.data !== undefined) {\n        hasRelationshipDataProperty = true;\n        this.updateData(payload.data, initial);\n      } else if (this.isAsync === false && !this.hasAnyRelationshipData) {\n        hasRelationshipDataProperty = true;\n        var data = this.kind === 'hasMany' ? [] : null;\n        this.updateData(data, initial);\n      }\n\n      if (payload.links) {\n        var originalLinks = this.links;\n        this.updateLinks(payload.links);\n\n        if (payload.links.related) {\n          var relatedLink = _normalizeLink(payload.links.related);\n\n          var currentLink = originalLinks && originalLinks.related ? _normalizeLink(originalLinks.related) : null;\n          var currentLinkHref = currentLink ? currentLink.href : null;\n\n          if (relatedLink && relatedLink.href && relatedLink.href !== currentLinkHref) {\n            ( Ember.warn(`You pushed a record of type '${this.recordData.modelName}' with a relationship '${this.key}' configured as 'async: false'. You've included a link but no primary data, this may be an error in your payload. EmberData will treat this relationship as known-to-be-empty.`, this.isAsync || this.hasAnyRelationshipData, {\n              id: 'ds.store.push-link-for-sync-relationship'\n            }));\n            ( !(typeof relatedLink.href === 'string' || relatedLink.href === null) && Ember.assert(`You have pushed a record of type '${this.recordData.modelName}' with '${this.key}' as a link, but the value of that link is not a string.`, typeof relatedLink.href === 'string' || relatedLink.href === null));\n            hasLink = true;\n          }\n        }\n      }\n      /*\n       Data being pushed into the relationship might contain only data or links,\n       or a combination of both.\n        IF contains only data\n       IF contains both links and data\n        relationshipIsEmpty -> true if is empty array (has-many) or is null (belongs-to)\n        hasAnyRelationshipData -> true\n        hasDematerializedInverse -> false\n        relationshipIsStale -> false\n        allInverseRecordsAreLoaded -> run-check-to-determine\n        IF contains only links\n        relationshipIsStale -> true\n       */\n\n\n      this.setHasFailedLoadAttempt(false);\n\n      if (hasRelationshipDataProperty) {\n        var relationshipIsEmpty = payload.data === null || Array.isArray(payload.data) && payload.data.length === 0;\n        this.setHasAnyRelationshipData(true);\n        this.setRelationshipIsStale(false);\n        this.setHasDematerializedInverse(false);\n        this.setRelationshipIsEmpty(relationshipIsEmpty);\n      } else if (hasLink) {\n        this.setRelationshipIsStale(true);\n\n        if (!initial) {\n          var recordData = this.recordData;\n          var storeWrapper = this.recordData.storeWrapper;\n\n          {\n            storeWrapper.notifyPropertyChange(recordData.modelName, recordData.id, recordData.clientId, // We know we are not an implicit relationship here\n            this.key);\n          }\n        }\n      }\n    }\n\n    localStateIsEmpty() {}\n\n    updateData(payload, initial) {}\n\n    destroy() {}\n\n  }\n\n  class BelongsToRelationship extends Relationship {\n    constructor(store, inverseKey, relationshipMeta, recordData, inverseIsAsync) {\n      super(store, inverseKey, relationshipMeta, recordData, inverseIsAsync);\n      this.inverseRecordData = void 0;\n      this.canonicalState = void 0;\n      this.key = void 0;\n      this.key = relationshipMeta.key;\n      this.inverseRecordData = null;\n      this.canonicalState = null;\n      this.key = relationshipMeta.key;\n    }\n\n    setRecordData(recordData) {\n      if (recordData) {\n        this.addRecordData(recordData);\n      } else if (this.inverseRecordData) {\n        this.removeRecordData(this.inverseRecordData);\n      }\n\n      this.setHasAnyRelationshipData(true);\n      this.setRelationshipIsStale(false);\n      this.setRelationshipIsEmpty(false);\n    }\n\n    setCanonicalRecordData(recordData) {\n      if (recordData) {\n        this.addCanonicalRecordData(recordData);\n      } else if (this.canonicalState) {\n        this.removeCanonicalRecordData(this.canonicalState);\n      }\n\n      this.flushCanonicalLater();\n    }\n\n    setInitialCanonicalRecordData(recordData) {\n      if (!recordData) {\n        return;\n      } // When we initialize a belongsTo relationship, we want to avoid work like\n      // notifying our internalModel that we've \"changed\" and excessive thrash on\n      // setting up inverse relationships\n\n\n      this.canonicalMembers.add(recordData);\n      this.members.add(recordData);\n      this.inverseRecordData = this.canonicalState = recordData;\n      this.setupInverseRelationship(recordData);\n    }\n\n    addCanonicalRecordData(recordData) {\n      if (this.canonicalMembers.has(recordData)) {\n        return;\n      }\n\n      if (this.canonicalState) {\n        this.removeCanonicalRecordData(this.canonicalState);\n      }\n\n      this.canonicalState = recordData;\n      super.addCanonicalRecordData(recordData);\n      this.setHasAnyRelationshipData(true);\n      this.setRelationshipIsEmpty(false);\n    }\n\n    inverseDidDematerialize() {\n      super.inverseDidDematerialize(this.inverseRecordData);\n      this.notifyBelongsToChange();\n    }\n\n    removeCompletelyFromOwn(recordData) {\n      super.removeCompletelyFromOwn(recordData);\n\n      if (this.canonicalState === recordData) {\n        this.canonicalState = null;\n      }\n\n      if (this.inverseRecordData === recordData) {\n        this.inverseRecordData = null;\n        this.notifyBelongsToChange();\n      }\n    }\n\n    removeCompletelyFromInverse() {\n      super.removeCompletelyFromInverse();\n      this.inverseRecordData = null;\n    }\n\n    flushCanonical() {\n      //temporary fix to not remove newly created records if server returned null.\n      //TODO remove once we have proper diffing\n      if (this.inverseRecordData && this.inverseRecordData.isNew() && !this.canonicalState) {\n        this.willSync = false;\n        return;\n      }\n\n      if (this.inverseRecordData !== this.canonicalState) {\n        this.inverseRecordData = this.canonicalState;\n        this.notifyBelongsToChange();\n      }\n\n      super.flushCanonical();\n    }\n\n    addRecordData(recordData) {\n      if (this.members.has(recordData)) {\n        return;\n      } // TODO Igor cleanup\n\n\n      Debug.assertPolymorphicType(this.recordData, this.relationshipMeta, recordData, this.store);\n\n      if (this.inverseRecordData) {\n        this.removeRecordData(this.inverseRecordData);\n      }\n\n      this.inverseRecordData = recordData;\n      super.addRecordData(recordData);\n      this.notifyBelongsToChange();\n    }\n\n    removeRecordDataFromOwn(recordData) {\n      if (!this.members.has(recordData)) {\n        return;\n      }\n\n      this.inverseRecordData = null;\n      super.removeRecordDataFromOwn(recordData);\n      this.notifyBelongsToChange();\n    }\n\n    removeAllRecordDatasFromOwn() {\n      super.removeAllRecordDatasFromOwn();\n      this.inverseRecordData = null;\n      this.notifyBelongsToChange();\n    }\n\n    notifyBelongsToChange() {\n      var recordData = this.recordData;\n      var storeWrapper = this.recordData.storeWrapper;\n      storeWrapper.notifyBelongsToChange(recordData.modelName, recordData.id, recordData.clientId, this.key);\n    }\n\n    removeCanonicalRecordDataFromOwn(recordData) {\n      if (!this.canonicalMembers.has(recordData)) {\n        return;\n      }\n\n      this.canonicalState = null;\n      this.setHasAnyRelationshipData(true);\n      this.setRelationshipIsEmpty(true);\n      super.removeCanonicalRecordDataFromOwn(recordData);\n    }\n\n    removeAllCanonicalRecordDatasFromOwn() {\n      super.removeAllCanonicalRecordDatasFromOwn();\n      this.canonicalState = null;\n    }\n\n    getData() {\n      var data;\n      var payload = {};\n\n      if (this.inverseRecordData) {\n        data = this.inverseRecordData.getResourceIdentifier();\n      }\n\n      if (this.inverseRecordData === null && this.hasAnyRelationshipData) {\n        data = null;\n      }\n\n      if (this.links) {\n        payload.links = this.links;\n      }\n\n      if (data !== undefined) {\n        payload.data = data;\n      }\n\n      if (this.meta) {\n        payload.meta = this.meta;\n      }\n\n      payload._relationship = this;\n      return payload;\n    }\n\n    updateData(data, initial) {\n      var recordData;\n\n      if (Ember.isNone(data)) {\n        recordData = null;\n      }\n\n      ( !(data === null || data.id !== undefined && data.type !== undefined) && Ember.assert(`Ember Data expected the data for the ${this.key} relationship on a ${this.recordData.toString()} to be in a JSON API format and include an \\`id\\` and \\`type\\` property but it found ${Ember.inspect(data)}. Please check your serializer and make sure it is serializing the relationship payload into a JSON API format.`, data === null || data.id !== undefined && data.type !== undefined));\n\n      if (recordData !== null) {\n        recordData = this.recordData.storeWrapper.recordDataFor(data.type, data.id);\n      }\n\n      if (initial) {\n        this.setInitialCanonicalRecordData(recordData);\n      } else {\n        this.setCanonicalRecordData(recordData);\n      }\n    }\n\n  }\n\n  /**\n    @module @ember-data/store\n  */\n  class ManyRelationship extends Relationship {\n    constructor(store, inverseKey, relationshipMeta, recordData, inverseIsAsync) {\n      super(store, inverseKey, relationshipMeta, recordData, inverseIsAsync);\n      this.canonicalState = void 0;\n      this.currentState = void 0;\n      this._willUpdateManyArray = void 0;\n      this._pendingManyArrayUpdates = void 0;\n      this.key = void 0;\n      this.canonicalState = [];\n      this.currentState = [];\n      this._willUpdateManyArray = false;\n      this._pendingManyArrayUpdates = null;\n      this.key = relationshipMeta.key;\n    }\n\n    addCanonicalRecordData(recordData, idx) {\n      if (this.canonicalMembers.has(recordData)) {\n        return;\n      }\n\n      if (idx !== undefined) {\n        this.canonicalState.splice(idx, 0, recordData);\n      } else {\n        this.canonicalState.push(recordData);\n      }\n\n      super.addCanonicalRecordData(recordData, idx);\n    }\n\n    inverseDidDematerialize(inverseRecordData) {\n      super.inverseDidDematerialize(inverseRecordData);\n\n      if (this.isAsync) {\n        this.notifyManyArrayIsStale();\n      }\n    }\n\n    addRecordData(recordData, idx) {\n      if (this.members.has(recordData)) {\n        return;\n      } // TODO Type this\n\n\n      Debug.assertPolymorphicType(this.recordData, this.relationshipMeta, recordData, this.store);\n      super.addRecordData(recordData, idx); // make lazy later\n\n      if (idx === undefined) {\n        idx = this.currentState.length;\n      }\n\n      this.currentState.splice(idx, 0, recordData); // TODO Igor consider making direct to remove the indirection\n      // We are not lazily accessing the manyArray here because the change is coming from app side\n      // this.manyArray.flushCanonical(this.currentState);\n\n      this.notifyHasManyChange();\n    }\n\n    removeCanonicalRecordDataFromOwn(recordData, idx) {\n      var i = idx;\n\n      if (!this.canonicalMembers.has(recordData)) {\n        return;\n      }\n\n      if (i === undefined) {\n        i = this.canonicalState.indexOf(recordData);\n      }\n\n      if (i > -1) {\n        this.canonicalState.splice(i, 1);\n      }\n\n      super.removeCanonicalRecordDataFromOwn(recordData, idx); //TODO(Igor) Figure out what to do here\n    }\n\n    removeAllCanonicalRecordDatasFromOwn() {\n      super.removeAllCanonicalRecordDatasFromOwn();\n      this.canonicalMembers.clear();\n      this.canonicalState.splice(0, this.canonicalState.length);\n      super.removeAllCanonicalRecordDatasFromOwn();\n    } //TODO(Igor) DO WE NEED THIS?\n\n\n    removeCompletelyFromOwn(recordData) {\n      super.removeCompletelyFromOwn(recordData); // TODO SkEPTICAL\n\n      var canonicalIndex = this.canonicalState.indexOf(recordData);\n\n      if (canonicalIndex !== -1) {\n        this.canonicalState.splice(canonicalIndex, 1);\n      }\n\n      this.removeRecordDataFromOwn(recordData);\n    }\n\n    flushCanonical() {\n      var toSet = this.canonicalState; //a hack for not removing new records\n      //TODO remove once we have proper diffing\n\n      var newRecordDatas = this.currentState.filter( // only add new internalModels which are not yet in the canonical state of this\n      // relationship (a new internalModel can be in the canonical state if it has\n      // been 'acknowleged' to be in the relationship via a store.push)\n      //TODO Igor deal with this\n      recordData => recordData.isNew() && toSet.indexOf(recordData) === -1);\n      toSet = toSet.concat(newRecordDatas);\n      /*\n      if (this._manyArray) {\n        this._manyArray.flushCanonical(toSet);\n      }\n      */\n\n      this.currentState = toSet;\n      super.flushCanonical(); // Once we clean up all the flushing, we will be left with at least the notifying part\n\n      this.notifyHasManyChange();\n    } //TODO(Igor) idx not used currently, fix\n\n\n    removeRecordDataFromOwn(recordData, idx) {\n      super.removeRecordDataFromOwn(recordData, idx);\n      var index = idx || this.currentState.indexOf(recordData); //TODO IGOR DAVID INVESTIGATE\n\n      if (index === -1) {\n        return;\n      }\n\n      this.currentState.splice(index, 1); // TODO Igor consider making direct to remove the indirection\n      // We are not lazily accessing the manyArray here because the change is coming from app side\n\n      this.notifyHasManyChange(); // this.manyArray.flushCanonical(this.currentState);\n    }\n\n    notifyRecordRelationshipAdded() {\n      this.notifyHasManyChange();\n    }\n\n    computeChanges(recordDatas = []) {\n      var members = this.canonicalMembers;\n      var recordDatasToRemove = [];\n      var recordDatasSet = setForArray(recordDatas);\n      members.forEach(member => {\n        if (recordDatasSet.has(member)) {\n          return;\n        }\n\n        recordDatasToRemove.push(member);\n      });\n      this.removeCanonicalRecordDatas(recordDatasToRemove);\n\n      for (var i = 0, l = recordDatas.length; i < l; i++) {\n        var recordData = recordDatas[i];\n        this.removeCanonicalRecordData(recordData);\n        this.addCanonicalRecordData(recordData, i);\n      }\n    }\n\n    setInitialRecordDatas(recordDatas) {\n      if (Array.isArray(recordDatas) === false || !recordDatas || recordDatas.length === 0) {\n        return;\n      }\n\n      for (var i = 0; i < recordDatas.length; i++) {\n        var recordData = recordDatas[i];\n\n        if (this.canonicalMembers.has(recordData)) {\n          continue;\n        }\n\n        this.canonicalMembers.add(recordData);\n        this.members.add(recordData);\n        this.setupInverseRelationship(recordData);\n      }\n\n      this.canonicalState = this.canonicalMembers.toArray();\n    }\n    /*\n      This is essentially a \"sync\" version of\n        notifyHasManyChange. We should work to unify\n        these worlds\n         - @runspired\n    */\n\n\n    notifyManyArrayIsStale() {\n      var recordData = this.recordData;\n      var storeWrapper = recordData.storeWrapper;\n\n      {\n        storeWrapper.notifyPropertyChange(recordData.modelName, recordData.id, recordData.clientId, this.key);\n      }\n    }\n\n    notifyHasManyChange() {\n      var recordData = this.recordData;\n      var storeWrapper = recordData.storeWrapper;\n      storeWrapper.notifyHasManyChange(recordData.modelName, recordData.id, recordData.clientId, this.key);\n    }\n\n    getData() {\n      var payload = {};\n\n      if (this.hasAnyRelationshipData) {\n        payload.data = this.currentState.map(recordData => recordData.getResourceIdentifier());\n      }\n\n      if (this.links) {\n        payload.links = this.links;\n      }\n\n      if (this.meta) {\n        payload.meta = this.meta;\n      } // TODO @runspired: the @igor refactor is too limiting for relationship state\n      //   we should reconsider where we fetch from.\n\n\n      payload._relationship = this;\n      return payload;\n    }\n\n    updateData(data, initial) {\n      var recordDatas;\n\n      if (Ember.isNone(data)) {\n        recordDatas = undefined;\n      } else {\n        recordDatas = new Array(data.length);\n\n        for (var i = 0; i < data.length; i++) {\n          recordDatas[i] = this.recordData.storeWrapper.recordDataFor(data[i].type, data[i].id);\n        }\n      }\n\n      if (initial) {\n        this.setInitialRecordDatas(recordDatas);\n      } else {\n        this.updateRecordDatasFromAdapter(recordDatas);\n      }\n    }\n\n  }\n\n  function setForArray(array) {\n    var set = new EmberDataOrderedSet();\n\n    if (array) {\n      for (var i = 0, l = array.length; i < l; i++) {\n        set.add(array[i]);\n      }\n    }\n\n    return set;\n  }\n\n  function createRelationshipFor(relationshipMeta, store, recordData, key) {\n    var inverseKey = recordData.storeWrapper.inverseForRelationship(recordData.modelName, key);\n    var inverseIsAsync = recordData.storeWrapper.inverseIsAsyncForRelationship(recordData.modelName, key);\n\n    if (relationshipMeta.kind === 'hasMany') {\n      return new ManyRelationship(store, inverseKey, relationshipMeta, recordData, inverseIsAsync);\n    } else {\n      return new BelongsToRelationship(store, inverseKey, relationshipMeta, recordData, inverseIsAsync);\n    }\n  }\n\n  class Relationships {\n    constructor(recordData) {\n      this.recordData = recordData;\n      this._store = void 0;\n      this._storeWrapper = void 0;\n      this.initializedRelationships = void 0;\n      this.initializedRelationships = Object.create(null);\n      this._storeWrapper = Private.upgradeForInternal(recordData.storeWrapper);\n      this._store = this._storeWrapper._store;\n    }\n\n    has(key) {\n      return !!this.initializedRelationships[key];\n    }\n\n    forEach(cb) {\n      var rels = this.initializedRelationships;\n      Object.keys(rels).forEach(name => {\n        cb(name, rels[name]);\n      });\n    }\n\n    get(key) {\n      var relationships = this.initializedRelationships;\n      var relationship = relationships[key];\n\n      if (!relationship) {\n        var _recordData = this.recordData;\n        var rel = this.recordData.storeWrapper.relationshipsDefinitionFor(this.recordData.modelName)[key];\n\n        if (rel) {\n          relationship = relationships[key] = createRelationshipFor(rel, this._store, _recordData, key);\n        }\n      }\n\n      return relationship;\n    }\n\n  }\n\n  /**\n    @module @ember-data/record-data\n  */\n  var nextBfsId = 1;\n  class RecordDataDefault {\n    constructor(identifier, storeWrapper) {\n      this.identifier = identifier;\n      this.storeWrapper = storeWrapper;\n      this._errors = void 0;\n      this.__relationships = void 0;\n      this.__implicitRelationships = void 0;\n      this.modelName = void 0;\n      this.clientId = void 0;\n      this.id = void 0;\n      this.isDestroyed = void 0;\n      this._isNew = void 0;\n      this._bfsId = void 0;\n      this.__attributes = void 0;\n      this.__inFlightAttributes = void 0;\n      this.__data = void 0;\n      this._scheduledDestroy = void 0;\n      this._isDeleted = void 0;\n      this._isDeletionCommited = void 0;\n      this.modelName = identifier.type;\n      this.clientId = identifier.lid;\n      this.id = identifier.id;\n      this.__relationships = null;\n      this.__implicitRelationships = null;\n      this.isDestroyed = false;\n      this._isNew = false;\n      this._isDeleted = false; // Used during the mark phase of unloading to avoid checking the same internal\n      // model twice in the same scan\n\n      this._bfsId = 0;\n      this.reset();\n    } // PUBLIC API\n\n\n    getResourceIdentifier() {\n      return this.identifier;\n    }\n\n    pushData(data, calculateChange) {\n      var changedKeys;\n\n      if (this._isNew) {\n        this._isNew = false;\n        this.notifyStateChange();\n      }\n\n      if (calculateChange) {\n        changedKeys = this._changedKeys(data.attributes);\n      }\n\n      Ember.assign(this._data, data.attributes);\n\n      if (this.__attributes) {\n        // only do if we have attribute changes\n        this._updateChangedAttributes();\n      }\n\n      if (data.relationships) {\n        this._setupRelationships(data);\n      }\n\n      if (data.id) {\n        this.id = coerceId(data.id);\n      }\n\n      return changedKeys;\n    }\n\n    willCommit() {\n      this._inFlightAttributes = this._attributes;\n      this._attributes = null;\n    }\n\n    hasChangedAttributes() {\n      return this.__attributes !== null && Object.keys(this.__attributes).length > 0;\n    }\n\n    _clearErrors() {\n    }\n\n    getErrors() {\n      ( Ember.assert('Can not call getErrors unless the RECORD_DATA_ERRORS feature flag is on', !!false));\n\n      {\n        return [];\n      }\n    } // this is a hack bc we don't have access to the state machine\n    //   and relationships need this info and @runspired didn't see\n    //   how to get it just yet from storeWrapper.\n\n\n    isEmpty() {\n      return this.__attributes === null && this.__inFlightAttributes === null && this.__data === null;\n    }\n\n    deleteRecord() {\n      this._isDeleted = true;\n      this.notifyStateChange();\n    }\n\n    isDeleted() {\n      return this._isDeleted;\n    }\n\n    setIsDeleted(isDeleted) {\n      this._isDeleted = isDeleted;\n\n      if (this._isNew) {\n        this._deletionConfirmed();\n      }\n\n      this.notifyStateChange();\n    }\n\n    isDeletionCommitted() {\n      return this._isDeletionCommited;\n    }\n\n    reset() {\n      this.__attributes = null;\n      this.__inFlightAttributes = null;\n      this.__data = null;\n      this._errors = undefined;\n    }\n\n    _setupRelationships(data) {\n      var relationships = this.storeWrapper.relationshipsDefinitionFor(this.modelName);\n      var keys = Object.keys(relationships);\n\n      for (var i = 0; i < keys.length; i++) {\n        var relationshipName = keys[i];\n\n        if (!data.relationships[relationshipName]) {\n          continue;\n        } // in debug, assert payload validity eagerly\n\n\n        var relationshipData = data.relationships[relationshipName];\n\n        {\n          var _storeWrapper = this.storeWrapper;\n          var recordData = this;\n          var relationshipMeta = relationships[relationshipName];\n\n          if (!relationshipData || !relationshipMeta) {\n            continue;\n          }\n\n          if (relationshipData.links) {\n            var isAsync = relationshipMeta.options && relationshipMeta.options.async !== false;\n\n            var _relationship = this._relationships.get(relationshipName);\n\n            ( Ember.warn(`You pushed a record of type '${this.modelName}' with a relationship '${relationshipName}' configured as 'async: false'. You've included a link but no primary data, this may be an error in your payload. EmberData will treat this relationship as known-to-be-empty.`, isAsync || relationshipData.data || _relationship.hasAnyRelationshipData, {\n              id: 'ds.store.push-link-for-sync-relationship'\n            }));\n          } else if (relationshipData.data) {\n            if (relationshipMeta.kind === 'belongsTo') {\n              ( !(!Array.isArray(relationshipData.data)) && Ember.assert(`A ${this.modelName} record was pushed into the store with the value of ${relationshipName} being ${Ember.inspect(relationshipData.data)}, but ${relationshipName} is a belongsTo relationship so the value must not be an array. You should probably check your data payload or serializer.`, !Array.isArray(relationshipData.data)));\n              assertRelationshipData(_storeWrapper, recordData, relationshipData.data, relationshipMeta);\n            } else if (relationshipMeta.kind === 'hasMany') {\n              ( !(Array.isArray(relationshipData.data)) && Ember.assert(`A ${this.modelName} record was pushed into the store with the value of ${relationshipName} being '${Ember.inspect(relationshipData.data)}', but ${relationshipName} is a hasMany relationship so the value must be an array. You should probably check your data payload or serializer.`, Array.isArray(relationshipData.data)));\n\n              if (Array.isArray(relationshipData.data)) {\n                for (var _i = 0; _i < relationshipData.data.length; _i++) {\n                  assertRelationshipData(_storeWrapper, recordData, relationshipData.data[_i], relationshipMeta);\n                }\n              }\n            }\n          }\n        }\n\n        var relationship = this._relationships.get(relationshipName);\n\n        relationship.push(relationshipData);\n      }\n    }\n    /*\n      Checks if the attributes which are considered as changed are still\n      different to the state which is acknowledged by the server.\n       This method is needed when data for the internal model is pushed and the\n      pushed data might acknowledge dirty attributes as confirmed.\n       @method updateChangedAttributes\n      @private\n     */\n\n\n    _updateChangedAttributes() {\n      var changedAttributes = this.changedAttributes();\n      var changedAttributeNames = Object.keys(changedAttributes);\n      var attrs = this._attributes;\n\n      for (var i = 0, length = changedAttributeNames.length; i < length; i++) {\n        var attribute = changedAttributeNames[i];\n        var data = changedAttributes[attribute];\n        var oldData = data[0];\n        var newData = data[1];\n\n        if (oldData === newData) {\n          delete attrs[attribute];\n        }\n      }\n    }\n    /*\n      Returns an object, whose keys are changed properties, and value is an\n      [oldProp, newProp] array.\n       @method changedAttributes\n      @private\n    */\n\n\n    changedAttributes() {\n      var oldData = this._data;\n      var currentData = this._attributes;\n      var inFlightData = this._inFlightAttributes;\n      var newData = Ember.assign({}, inFlightData, currentData);\n      var diffData = Object.create(null);\n      var newDataKeys = Object.keys(newData);\n\n      for (var i = 0, length = newDataKeys.length; i < length; i++) {\n        var _key = newDataKeys[i];\n        diffData[_key] = [oldData[_key], newData[_key]];\n      }\n\n      return diffData;\n    }\n\n    isNew() {\n      return this._isNew;\n    }\n\n    rollbackAttributes() {\n      var dirtyKeys;\n      this._isDeleted = false;\n\n      if (this.hasChangedAttributes()) {\n        dirtyKeys = Object.keys(this._attributes);\n        this._attributes = null;\n      }\n\n      if (this.isNew()) {\n        this.removeFromInverseRelationships(true);\n        this._isDeleted = true;\n        this._isNew = false;\n      }\n\n      this._inFlightAttributes = null;\n\n      this._clearErrors();\n\n      this.notifyStateChange();\n      return dirtyKeys;\n    }\n\n    _deletionConfirmed() {\n      this.removeFromInverseRelationships();\n    }\n\n    didCommit(data) {\n      if (this._isDeleted) {\n        this._deletionConfirmed();\n\n        this._isDeletionCommited = true;\n      }\n\n      this._isNew = false;\n      var newCanonicalAttributes = null;\n\n      if (data) {\n        // this.store._internalModelDidReceiveRelationshipData(this.modelName, this.id, data.relationships);\n        if (data.relationships) {\n          this._setupRelationships(data);\n        }\n\n        if (data.id) {\n          // didCommit provided an ID, notify the store of it\n          this.storeWrapper.setRecordId(this.modelName, data.id, this.clientId);\n          this.id = coerceId(data.id);\n        }\n\n        newCanonicalAttributes = data.attributes || null;\n      }\n\n      var changedKeys = this._changedKeys(newCanonicalAttributes);\n\n      Ember.assign(this._data, this.__inFlightAttributes, newCanonicalAttributes);\n      this._inFlightAttributes = null;\n\n      this._updateChangedAttributes();\n\n      this._clearErrors();\n\n      this.notifyStateChange();\n      return changedKeys;\n    }\n\n    notifyStateChange() {\n    } // get ResourceIdentifiers for \"current state\"\n\n\n    getHasMany(key) {\n      return this._relationships.get(key).getData();\n    } // set a new \"current state\" via ResourceIdentifiers\n\n\n    setDirtyHasMany(key, recordDatas) {\n      var relationship = this._relationships.get(key);\n\n      relationship.clear();\n      relationship.addRecordDatas(recordDatas);\n    } // append to \"current state\" via RecordDatas\n\n\n    addToHasMany(key, recordDatas, idx) {\n      this._relationships.get(key).addRecordDatas(recordDatas, idx);\n    } // remove from \"current state\" via RecordDatas\n\n\n    removeFromHasMany(key, recordDatas) {\n      this._relationships.get(key).removeRecordDatas(recordDatas);\n    }\n\n    commitWasRejected(identifier, errors) {\n      var keys = Object.keys(this._inFlightAttributes);\n\n      if (keys.length > 0) {\n        var attrs = this._attributes;\n\n        for (var i = 0; i < keys.length; i++) {\n          if (attrs[keys[i]] === undefined) {\n            attrs[keys[i]] = this._inFlightAttributes[keys[i]];\n          }\n        }\n      }\n\n      this._inFlightAttributes = null;\n    }\n\n    getBelongsTo(key) {\n      return this._relationships.get(key).getData();\n    }\n\n    setDirtyBelongsTo(key, recordData) {\n      this._relationships.get(key).setRecordData(recordData);\n    }\n\n    setDirtyAttribute(key, value) {\n      var originalValue; // Add the new value to the changed attributes hash\n\n      this._attributes[key] = value;\n\n      if (key in this._inFlightAttributes) {\n        originalValue = this._inFlightAttributes[key];\n      } else {\n        originalValue = this._data[key];\n      } // If we went back to our original value, we shouldn't keep the attribute around anymore\n\n\n      if (value === originalValue) {\n        delete this._attributes[key];\n      }\n    } // internal set coming from the model\n\n\n    __setId(id) {\n      if (this.id !== id) {\n        this.id = id;\n      }\n    }\n\n    getAttr(key) {\n      if (key in this._attributes) {\n        return this._attributes[key];\n      } else if (key in this._inFlightAttributes) {\n        return this._inFlightAttributes[key];\n      } else {\n        return this._data[key];\n      }\n    }\n\n    hasAttr(key) {\n      return key in this._attributes || key in this._inFlightAttributes || key in this._data;\n    }\n\n    unloadRecord() {\n      if (this.isDestroyed) {\n        return;\n      }\n\n      this._destroyRelationships();\n\n      this.reset();\n\n      if (!this._scheduledDestroy) {\n        this._scheduledDestroy = Ember.run.backburner.schedule('destroy', this, '_cleanupOrphanedRecordDatas');\n      }\n    }\n\n    _cleanupOrphanedRecordDatas() {\n      var relatedRecordDatas = this._allRelatedRecordDatas();\n\n      if (areAllModelsUnloaded(relatedRecordDatas)) {\n        for (var i = 0; i < relatedRecordDatas.length; ++i) {\n          var recordData = relatedRecordDatas[i];\n\n          if (!recordData.isDestroyed) {\n            recordData.destroy();\n          }\n        }\n      }\n\n      this._scheduledDestroy = null;\n    }\n\n    destroy() {\n      this._relationships.forEach((name, rel) => rel.destroy());\n\n      this.isDestroyed = true;\n      this.storeWrapper.disconnectRecord(this.modelName, this.id, this.clientId);\n    }\n\n    isRecordInUse() {\n      return this.storeWrapper.isRecordInUse(this.modelName, this.id, this.clientId);\n    }\n    /**\n      Computes the set of internal models reachable from `this` across exactly one\n      relationship.\n       @return {Array} An array containing the internal models that `this` belongs\n      to or has many.\n     */\n\n\n    _directlyRelatedRecordDatas() {\n      var array = [];\n\n      this._relationships.forEach((name, rel) => {\n        var members = rel.members.list;\n        var canonicalMembers = rel.canonicalMembers.list;\n        array = array.concat(members, canonicalMembers);\n      });\n\n      return array;\n    }\n    /**\n      Computes the set of internal models reachable from this internal model.\n       Reachability is determined over the relationship graph (ie a graph where\n      nodes are internal models and edges are belongs to or has many\n      relationships).\n       @return {Array} An array including `this` and all internal models reachable\n      from `this`.\n    */\n\n\n    _allRelatedRecordDatas() {\n      var array = [];\n      var queue = [];\n      var bfsId = nextBfsId++;\n      queue.push(this);\n      this._bfsId = bfsId;\n\n      while (queue.length > 0) {\n        var node = queue.shift();\n        array.push(node);\n\n        var related = node._directlyRelatedRecordDatas();\n\n        for (var i = 0; i < related.length; ++i) {\n          var recordData = related[i];\n\n          if (recordData instanceof RecordDataDefault) {\n            ( !(recordData._bfsId <= bfsId) && Ember.assert('Internal Error: seen a future bfs iteration', recordData._bfsId <= bfsId));\n\n            if (recordData._bfsId < bfsId) {\n              queue.push(recordData);\n              recordData._bfsId = bfsId;\n            }\n          }\n        }\n      }\n\n      return array;\n    }\n\n    isAttrDirty(key) {\n      if (this._attributes[key] === undefined) {\n        return false;\n      }\n\n      var originalValue;\n\n      if (this._inFlightAttributes[key] !== undefined) {\n        originalValue = this._inFlightAttributes[key];\n      } else {\n        originalValue = this._data[key];\n      }\n\n      return originalValue !== this._attributes[key];\n    }\n\n    get _attributes() {\n      if (this.__attributes === null) {\n        this.__attributes = Object.create(null);\n      }\n\n      return this.__attributes;\n    }\n\n    set _attributes(v) {\n      this.__attributes = v;\n    }\n\n    get _relationships() {\n      if (this.__relationships === null) {\n        this.__relationships = new Relationships(this);\n      }\n\n      return this.__relationships;\n    }\n\n    get _data() {\n      if (this.__data === null) {\n        this.__data = Object.create(null);\n      }\n\n      return this.__data;\n    }\n\n    set _data(v) {\n      this.__data = v;\n    }\n    /*\n     implicit relationships are relationship which have not been declared but the inverse side exists on\n     another record somewhere\n     For example if there was\n      ```app/models/comment.js\n     import Model, { attr } from '@ember-data/model';\n      export default Model.extend({\n       name: attr()\n     });\n     ```\n      but there is also\n      ```app/models/post.js\n     import Model, { attr, hasMany } from '@ember-data/model';\n      export default Model.extend({\n       name: attr(),\n       comments: hasMany('comment')\n     });\n     ```\n      would have a implicit post relationship in order to be do things like remove ourselves from the post\n     when we are deleted\n    */\n\n\n    get _implicitRelationships() {\n      if (this.__implicitRelationships === null) {\n        var relationships = Object.create(null);\n        this.__implicitRelationships = relationships;\n        return relationships;\n      }\n\n      return this.__implicitRelationships;\n    }\n\n    get _inFlightAttributes() {\n      if (this.__inFlightAttributes === null) {\n        this.__inFlightAttributes = Object.create(null);\n      }\n\n      return this.__inFlightAttributes;\n    }\n\n    set _inFlightAttributes(v) {\n      this.__inFlightAttributes = v;\n    }\n    /**\n     * Receives options passed to `store.createRecord` and is given the opportunity\n     * to handle them.\n     *\n     * The return value is an object of options to pass to `Record.create()`\n     *\n     * @param options\n     * @private\n     */\n\n\n    _initRecordCreateOptions(options) {\n      var createOptions = {};\n\n      if (options !== undefined) {\n        var {\n          modelName,\n          storeWrapper: _storeWrapper2\n        } = this;\n\n        var attributeDefs = _storeWrapper2.attributesDefinitionFor(modelName);\n\n        var relationshipDefs = _storeWrapper2.relationshipsDefinitionFor(modelName);\n\n        var relationships = this._relationships;\n        var propertyNames = Object.keys(options);\n\n        for (var i = 0; i < propertyNames.length; i++) {\n          var name = propertyNames[i];\n          var propertyValue = options[name];\n\n          if (name === 'id') {\n            this.id = propertyValue;\n            continue;\n          }\n\n          var fieldType = relationshipDefs[name] || attributeDefs[name];\n          var kind = fieldType !== undefined ? fieldType.kind : null;\n          var relationship = void 0;\n\n          switch (kind) {\n            case 'attribute':\n              this.setDirtyAttribute(name, propertyValue);\n              break;\n\n            case 'belongsTo':\n              this.setDirtyBelongsTo(name, propertyValue);\n              relationship = relationships.get(name);\n              relationship.setHasAnyRelationshipData(true);\n              relationship.setRelationshipIsEmpty(false);\n              break;\n\n            case 'hasMany':\n              this.setDirtyHasMany(name, propertyValue);\n              relationship = relationships.get(name);\n              relationship.setHasAnyRelationshipData(true);\n              relationship.setRelationshipIsEmpty(false);\n              break;\n\n            default:\n              // reflect back (pass-thru) unknown properties\n              createOptions[name] = propertyValue;\n          }\n        }\n      }\n\n      return createOptions;\n    }\n    /*\n        TODO IGOR AND DAVID this shouldn't be public\n     This method should only be called by records in the `isNew()` state OR once the record\n     has been deleted and that deletion has been persisted.\n      It will remove this record from any associated relationships.\n      If `isNew` is true (default false), it will also completely reset all\n      relationships to an empty state as well.\n       @method removeFromInverseRelationships\n      @param {Boolean} isNew whether to unload from the `isNew` perspective\n      @private\n     */\n\n\n    removeFromInverseRelationships(isNew = false) {\n      this._relationships.forEach((name, rel) => {\n        rel.removeCompletelyFromInverse();\n\n        if (isNew === true) {\n          rel.clear();\n        }\n      });\n\n      this.__relationships = null;\n      var implicitRelationships = this._implicitRelationships;\n      this.__implicitRelationships = null;\n      Object.keys(implicitRelationships).forEach(key => {\n        var rel = implicitRelationships[key];\n        rel.removeCompletelyFromInverse();\n\n        if (isNew === true) {\n          rel.clear();\n        }\n      });\n    }\n\n    _destroyRelationships() {\n      var relationships = this._relationships;\n      relationships.forEach((name, rel) => destroyRelationship(rel));\n      var implicitRelationships = this._implicitRelationships;\n      this.__implicitRelationships = null;\n      Object.keys(implicitRelationships).forEach(key => {\n        var rel = implicitRelationships[key];\n        destroyRelationship(rel);\n      });\n    }\n\n    clientDidCreate() {\n      this._isNew = true;\n    }\n    /*\n      Ember Data has 3 buckets for storing the value of an attribute on an internalModel.\n       `_data` holds all of the attributes that have been acknowledged by\n      a backend via the adapter. When rollbackAttributes is called on a model all\n      attributes will revert to the record's state in `_data`.\n       `_attributes` holds any change the user has made to an attribute\n      that has not been acknowledged by the adapter. Any values in\n      `_attributes` are have priority over values in `_data`.\n       `_inFlightAttributes`. When a record is being synced with the\n      backend the values in `_attributes` are copied to\n      `_inFlightAttributes`. This way if the backend acknowledges the\n      save but does not return the new state Ember Data can copy the\n      values from `_inFlightAttributes` to `_data`. Without having to\n      worry about changes made to `_attributes` while the save was\n      happenign.\n        Changed keys builds a list of all of the values that may have been\n      changed by the backend after a successful save.\n       It does this by iterating over each key, value pair in the payload\n      returned from the server after a save. If the `key` is found in\n      `_attributes` then the user has a local changed to the attribute\n      that has not been synced with the server and the key is not\n      included in the list of changed keys.\n    \n      If the value, for a key differs from the value in what Ember Data\n      believes to be the truth about the backend state (A merger of the\n      `_data` and `_inFlightAttributes` objects where\n      `_inFlightAttributes` has priority) then that means the backend\n      has updated the value and the key is added to the list of changed\n      keys.\n       @method _changedKeys\n      @private\n    */\n\n    /*\n        TODO IGOR DAVID\n        There seems to be a potential bug here, where we will return keys that are not\n        in the schema\n    */\n\n\n    _changedKeys(updates) {\n      var changedKeys = [];\n\n      if (updates) {\n        var original, i, value, _key2;\n\n        var keys = Object.keys(updates);\n        var length = keys.length;\n        var hasAttrs = this.hasChangedAttributes();\n        var attrs;\n\n        if (hasAttrs) {\n          attrs = this._attributes;\n        }\n\n        original = Ember.assign(Object.create(null), this._data, this.__inFlightAttributes);\n\n        for (i = 0; i < length; i++) {\n          _key2 = keys[i];\n          value = updates[_key2]; // A value in _attributes means the user has a local change to\n          // this attributes. We never override this value when merging\n          // updates from the backend so we should not sent a change\n          // notification if the server value differs from the original.\n\n          if (hasAttrs === true && attrs[_key2] !== undefined) {\n            continue;\n          }\n\n          if (!Ember.isEqual(original[_key2], value)) {\n            changedKeys.push(_key2);\n          }\n        }\n      }\n\n      return changedKeys;\n    }\n\n    toString() {\n      return `<${this.modelName}:${this.id}>`;\n    }\n\n  }\n\n  function assertRelationshipData(store, recordData, data, meta) {\n    ( !(!Array.isArray(data)) && Ember.assert(`A ${recordData.modelName} record was pushed into the store with the value of ${meta.key} being '${JSON.stringify(data)}', but ${meta.key} is a belongsTo relationship so the value must not be an array. You should probably check your data payload or serializer.`, !Array.isArray(data)));\n    ( !(data === null || typeof data.type === 'string' && data.type.length) && Ember.assert(`Encountered a relationship identifier without a type for the ${meta.kind} relationship '${meta.key}' on ${recordData}, expected a json-api identifier with type '${meta.type}' but found '${JSON.stringify(data)}'. Please check your serializer and make sure it is serializing the relationship payload into a JSON API format.`, data === null || typeof data.type === 'string' && data.type.length));\n    ( !(data === null || !!coerceId(data.id)) && Ember.assert(`Encountered a relationship identifier without an id for the ${meta.kind} relationship '${meta.key}' on ${recordData}, expected a json-api identifier but found '${JSON.stringify(data)}'. Please check your serializer and make sure it is serializing the relationship payload into a JSON API format.`, data === null || !!coerceId(data.id)));\n    ( !(data === null || !data.type || store._hasModelFor(data.type)) && Ember.assert(`Encountered a relationship identifier with type '${data.type}' for the ${meta.kind} relationship '${meta.key}' on ${recordData}, Expected a json-api identifier with type '${meta.type}'. No model was found for '${data.type}'.`, data === null || !data.type || store._hasModelFor(data.type)));\n  } // Handle dematerialization for relationship `rel`.  In all cases, notify the\n  // relationship of the dematerialization: this is done so the relationship can\n  // notify its inverse which needs to update state\n  //\n  // If the inverse is sync, unloading this record is treated as a client-side\n  // delete, so we remove the inverse records from this relationship to\n  // disconnect the graph.  Because it's not async, we don't need to keep around\n  // the internalModel as an id-wrapper for references and because the graph is\n  // disconnected we can actually destroy the internalModel when checking for\n  // orphaned models.\n\n\n  function destroyRelationship(rel) {\n    rel.recordDataDidDematerialize();\n\n    if (rel._inverseIsSync()) {\n      rel.removeAllRecordDatasFromOwn();\n      rel.removeAllCanonicalRecordDatasFromOwn();\n    }\n  }\n\n  function areAllModelsUnloaded(recordDatas) {\n    for (var i = 0; i < recordDatas.length; ++i) {\n      if (recordDatas[i].isRecordInUse()) {\n        return false;\n      }\n    }\n\n    return true;\n  }\n\n  exports.BelongsToRelationship = BelongsToRelationship;\n  exports.ManyRelationship = ManyRelationship;\n  exports.RecordData = RecordDataDefault;\n  exports.Relationship = Relationship;\n  exports.relationshipStateFor = relationshipStateFor;\n  exports.relationshipsFor = relationshipsFor;\n\n  Object.defineProperty(exports, '__esModule', { value: true });\n\n});\n","define('@ember-data/serializer/-private', ['exports'], function (exports) { 'use strict';\n\n  /**\n    @module @ember-data/serializer\n  */\n\n  /**\n    ## Using Embedded Records\n\n    `EmbeddedRecordsMixin` supports serializing embedded records.\n\n    To set up embedded records, include the mixin when extending a serializer,\n    then define and configure embedded (model) relationships.\n\n    Note that embedded records will serialize with the serializer for their model instead of the serializer in which they are defined.\n\n    Note also that this mixin does not work with JSONAPISerializer because the JSON:API specification does not describe how to format embedded resources.\n\n    Below is an example of a per-type serializer (`post` type).\n\n    ```app/serializers/post.js\n    import RESTSerializer, { EmbeddedRecordsMixin } from '@ember-data/serializer/rest';\n\n    export default RESTSerializer.extend(EmbeddedRecordsMixin, {\n      attrs: {\n        author: { embedded: 'always' },\n        comments: { serialize: 'ids' }\n      }\n    });\n    ```\n    Note that this use of `{ embedded: 'always' }` is unrelated to\n    the `{ embedded: 'always' }` that is defined as an option on `attr` as part of\n    defining a model while working with the `ActiveModelSerializer`.  Nevertheless,\n    using `{ embedded: 'always' }` as an option to `attr` is not a valid way to set up\n    embedded records.\n\n    The `attrs` option for a resource `{ embedded: 'always' }` is shorthand for:\n\n    ```js\n    {\n      serialize: 'records',\n      deserialize: 'records'\n    }\n    ```\n\n    ### Configuring Attrs\n\n    A resource's `attrs` option may be set to use `ids`, `records` or false for the\n    `serialize`  and `deserialize` settings.\n\n    The `attrs` property can be set on the `ApplicationSerializer` or a per-type\n    serializer.\n\n    In the case where embedded JSON is expected while extracting a payload (reading)\n    the setting is `deserialize: 'records'`, there is no need to use `ids` when\n    extracting as that is the default behaviour without this mixin if you are using\n    the vanilla `EmbeddedRecordsMixin`. Likewise, to embed JSON in the payload while\n    serializing `serialize: 'records'` is the setting to use. There is an option of\n    not embedding JSON in the serialized payload by using `serialize: 'ids'`. If you\n    do not want the relationship sent at all, you can use `serialize: false`.\n\n\n    ### EmbeddedRecordsMixin defaults\n    If you do not overwrite `attrs` for a specific relationship, the `EmbeddedRecordsMixin`\n    will behave in the following way:\n\n    BelongsTo: `{ serialize: 'id', deserialize: 'id' }`\n    HasMany:   `{ serialize: false, deserialize: 'ids' }`\n\n    ### Model Relationships\n\n    Embedded records must have a model defined to be extracted and serialized. Note that\n    when defining any relationships on your model such as `belongsTo` and `hasMany`, you\n    should not both specify `async: true` and also indicate through the serializer's\n    `attrs` attribute that the related model should be embedded for deserialization.\n    If a model is declared embedded for deserialization (`embedded: 'always'` or `deserialize: 'records'`),\n    then do not use `async: true`.\n\n    To successfully extract and serialize embedded records the model relationships\n    must be set up correctly. See the\n    [defining relationships](https://guides.emberjs.com/current/models/relationships)\n    section of the **Defining Models** guide page.\n\n    Records without an `id` property are not considered embedded records, model\n    instances must have an `id` property to be used with Ember Data.\n\n    ### Example JSON payloads, Models and Serializers\n\n    **When customizing a serializer it is important to grok what the customizations\n    are. Please read the docs for the methods this mixin provides, in case you need\n    to modify it to fit your specific needs.**\n\n    For example, review the docs for each method of this mixin:\n    * [normalize](/ember-data/release/classes/EmbeddedRecordsMixin/methods/normalize?anchor=normalize)\n    * [serializeBelongsTo](/ember-data/release/classes/EmbeddedRecordsMixin/methods/serializeBelongsTo?anchor=serializeBelongsTo)\n    * [serializeHasMany](/ember-data/release/classes/EmbeddedRecordsMixin/methods/serializeHasMany?anchor=serializeHasMany)\n\n    @class EmbeddedRecordsMixin\n  */\n  var embeddedRecordsMixin = Ember.Mixin.create({\n    /**\n      Normalize the record and recursively normalize/extract all the embedded records\n      while pushing them into the store as they are encountered\n       A payload with an attr configured for embedded records needs to be extracted:\n       ```js\n      {\n        \"post\": {\n          \"id\": \"1\"\n          \"title\": \"Rails is omakase\",\n          \"comments\": [{\n            \"id\": \"1\",\n            \"body\": \"Rails is unagi\"\n          }, {\n            \"id\": \"2\",\n            \"body\": \"Omakase O_o\"\n          }]\n        }\n      }\n      ```\n     @method normalize\n     @param {Model} typeClass\n     @param {Object} hash to be normalized\n     @param {String} prop the hash has been referenced by\n     @return {Object} the normalized hash\n    **/\n    normalize(typeClass, hash, prop) {\n      var normalizedHash = this._super(typeClass, hash, prop);\n\n      return this._extractEmbeddedRecords(this, this.store, typeClass, normalizedHash);\n    },\n\n    keyForRelationship(key, typeClass, method) {\n      if (method === 'serialize' && this.hasSerializeRecordsOption(key) || method === 'deserialize' && this.hasDeserializeRecordsOption(key)) {\n        return this.keyForAttribute(key, method);\n      } else {\n        return this._super(key, typeClass, method) || key;\n      }\n    },\n\n    /**\n      Serialize `belongsTo` relationship when it is configured as an embedded object.\n       This example of an author model belongs to a post model:\n       ```js\n      import Model, { attr, belongsTo } from '@ember-data/model';\n       Post = Model.extend({\n        title:    attr('string'),\n        body:     attr('string'),\n        author:   belongsTo('author')\n      });\n       Author = Model.extend({\n        name:     attr('string'),\n        post:     belongsTo('post')\n      });\n      ```\n       Use a custom (type) serializer for the post model to configure embedded author\n       ```app/serializers/post.js\n      import RESTSerializer, { EmbeddedRecordsMixin } from '@ember-data/serializer/rest';\n       export default RESTSerializer.extend(EmbeddedRecordsMixin, {\n        attrs: {\n          author: { embedded: 'always' }\n        }\n      })\n      ```\n       A payload with an attribute configured for embedded records can serialize\n      the records together under the root attribute's payload:\n       ```js\n      {\n        \"post\": {\n          \"id\": \"1\"\n          \"title\": \"Rails is omakase\",\n          \"author\": {\n            \"id\": \"2\"\n            \"name\": \"dhh\"\n          }\n        }\n      }\n      ```\n       @method serializeBelongsTo\n      @param {Snapshot} snapshot\n      @param {Object} json\n      @param {Object} relationship\n    */\n    serializeBelongsTo(snapshot, json, relationship) {\n      var attr = relationship.key;\n\n      if (this.noSerializeOptionSpecified(attr)) {\n        this._super(snapshot, json, relationship);\n\n        return;\n      }\n\n      var includeIds = this.hasSerializeIdsOption(attr);\n      var includeRecords = this.hasSerializeRecordsOption(attr);\n      var embeddedSnapshot = snapshot.belongsTo(attr);\n\n      if (includeIds) {\n        var serializedKey = this._getMappedKey(relationship.key, snapshot.type);\n\n        if (serializedKey === relationship.key && this.keyForRelationship) {\n          serializedKey = this.keyForRelationship(relationship.key, relationship.kind, 'serialize');\n        }\n\n        if (!embeddedSnapshot) {\n          json[serializedKey] = null;\n        } else {\n          json[serializedKey] = embeddedSnapshot.id;\n\n          if (relationship.options.polymorphic) {\n            this.serializePolymorphicType(snapshot, json, relationship);\n          }\n        }\n      } else if (includeRecords) {\n        this._serializeEmbeddedBelongsTo(snapshot, json, relationship);\n      }\n    },\n\n    _serializeEmbeddedBelongsTo(snapshot, json, relationship) {\n      var embeddedSnapshot = snapshot.belongsTo(relationship.key);\n\n      var serializedKey = this._getMappedKey(relationship.key, snapshot.type);\n\n      if (serializedKey === relationship.key && this.keyForRelationship) {\n        serializedKey = this.keyForRelationship(relationship.key, relationship.kind, 'serialize');\n      }\n\n      if (!embeddedSnapshot) {\n        json[serializedKey] = null;\n      } else {\n        json[serializedKey] = embeddedSnapshot.serialize({\n          includeId: true\n        });\n        this.removeEmbeddedForeignKey(snapshot, embeddedSnapshot, relationship, json[serializedKey]);\n\n        if (relationship.options.polymorphic) {\n          this.serializePolymorphicType(snapshot, json, relationship);\n        }\n      }\n    },\n\n    /**\n      Serializes `hasMany` relationships when it is configured as embedded objects.\n       This example of a post model has many comments:\n       ```js\n      import Model, { attr, belongsTo, hasMany } from '@ember-data/model';\n       Post = Model.extend({\n        title:    attr('string'),\n        body:     attr('string'),\n        comments: hasMany('comment')\n      });\n       Comment = Model.extend({\n        body:     attr('string'),\n        post:     belongsTo('post')\n      });\n      ```\n       Use a custom (type) serializer for the post model to configure embedded comments\n       ```app/serializers/post.js\n      import RESTSerializer, { EmbeddedRecordsMixin } from '@ember-data/serializer/rest';\n       export default RESTSerializer.extend(EmbeddedRecordsMixin, {\n        attrs: {\n          comments: { embedded: 'always' }\n        }\n      })\n      ```\n       A payload with an attribute configured for embedded records can serialize\n      the records together under the root attribute's payload:\n       ```js\n      {\n        \"post\": {\n          \"id\": \"1\"\n          \"title\": \"Rails is omakase\",\n          \"body\": \"I want this for my ORM, I want that for my template language...\"\n          \"comments\": [{\n            \"id\": \"1\",\n            \"body\": \"Rails is unagi\"\n          }, {\n            \"id\": \"2\",\n            \"body\": \"Omakase O_o\"\n          }]\n        }\n      }\n      ```\n       The attrs options object can use more specific instruction for extracting and\n      serializing. When serializing, an option to embed `ids`, `ids-and-types` or `records` can be set.\n      When extracting the only option is `records`.\n       So `{ embedded: 'always' }` is shorthand for:\n      `{ serialize: 'records', deserialize: 'records' }`\n       To embed the `ids` for a related object (using a hasMany relationship):\n       ```app/serializers/post.js\n      import RESTSerializer, { EmbeddedRecordsMixin } from '@ember-data/serializer/rest';\n       export default RESTSerializer.extend(EmbeddedRecordsMixin, {\n        attrs: {\n          comments: { serialize: 'ids', deserialize: 'records' }\n        }\n      })\n      ```\n       ```js\n      {\n        \"post\": {\n          \"id\": \"1\"\n          \"title\": \"Rails is omakase\",\n          \"body\": \"I want this for my ORM, I want that for my template language...\"\n          \"comments\": [\"1\", \"2\"]\n        }\n      }\n      ```\n       To embed the relationship as a collection of objects with `id` and `type` keys, set\n      `ids-and-types` for the related object.\n       This is particularly useful for polymorphic relationships where records don't share\n      the same table and the `id` is not enough information.\n       For example having a user that has many pets:\n       ```js\n      User = Model.extend({\n        name: attr('string'),\n        pets: hasMany('pet', { polymorphic: true })\n      });\n       Pet = Model.extend({\n        name: attr('string'),\n      });\n       Cat = Pet.extend({\n        // ...\n      });\n       Parrot = Pet.extend({\n        // ...\n      });\n      ```\n       ```app/serializers/user.js\n      import RESTSerializer, { EmbeddedRecordsMixin } from '@ember-data/serializer/rest';\n       export default RESTSerializer.extend(EmbeddedRecordsMixin, {\n        attrs: {\n          pets: { serialize: 'ids-and-types', deserialize: 'records' }\n        }\n      });\n      ```\n       ```js\n      {\n        \"user\": {\n          \"id\": \"1\"\n          \"name\": \"Bertin Osborne\",\n          \"pets\": [\n            { \"id\": \"1\", \"type\": \"Cat\" },\n            { \"id\": \"1\", \"type\": \"Parrot\"}\n          ]\n        }\n      }\n      ```\n       @method serializeHasMany\n      @param {Snapshot} snapshot\n      @param {Object} json\n      @param {Object} relationship\n    */\n    serializeHasMany(snapshot, json, relationship) {\n      var attr = relationship.key;\n\n      if (this.noSerializeOptionSpecified(attr)) {\n        this._super(snapshot, json, relationship);\n\n        return;\n      }\n\n      if (this.hasSerializeIdsOption(attr)) {\n        var serializedKey = this._getMappedKey(relationship.key, snapshot.type);\n\n        if (serializedKey === relationship.key && this.keyForRelationship) {\n          serializedKey = this.keyForRelationship(relationship.key, relationship.kind, 'serialize');\n        }\n\n        json[serializedKey] = snapshot.hasMany(attr, {\n          ids: true\n        });\n      } else if (this.hasSerializeRecordsOption(attr)) {\n        this._serializeEmbeddedHasMany(snapshot, json, relationship);\n      } else {\n        if (this.hasSerializeIdsAndTypesOption(attr)) {\n          this._serializeHasManyAsIdsAndTypes(snapshot, json, relationship);\n        }\n      }\n    },\n\n    /*\n      Serializes a hasMany relationship as an array of objects containing only `id` and `type`\n      keys.\n      This has its use case on polymorphic hasMany relationships where the server is not storing\n      all records in the same table using STI, and therefore the `id` is not enough information\n       TODO: Make the default in Ember-data 3.0??\n    */\n    _serializeHasManyAsIdsAndTypes(snapshot, json, relationship) {\n      var serializedKey = this.keyForAttribute(relationship.key, 'serialize');\n      var hasMany = snapshot.hasMany(relationship.key);\n      json[serializedKey] = Ember.A(hasMany).map(function (recordSnapshot) {\n        //\n        // I'm sure I'm being utterly naive here. Propably id is a configurate property and\n        // type too, and the modelName has to be normalized somehow.\n        //\n        return {\n          id: recordSnapshot.id,\n          type: recordSnapshot.modelName\n        };\n      });\n    },\n\n    _serializeEmbeddedHasMany(snapshot, json, relationship) {\n      var serializedKey = this._getMappedKey(relationship.key, snapshot.type);\n\n      if (serializedKey === relationship.key && this.keyForRelationship) {\n        serializedKey = this.keyForRelationship(relationship.key, relationship.kind, 'serialize');\n      }\n\n      ( Ember.warn(`The embedded relationship '${serializedKey}' is undefined for '${snapshot.modelName}' with id '${snapshot.id}'. Please include it in your original payload.`, Ember.typeOf(snapshot.hasMany(relationship.key)) !== 'undefined', {\n        id: 'ds.serializer.embedded-relationship-undefined'\n      }));\n      json[serializedKey] = this._generateSerializedHasMany(snapshot, relationship);\n    },\n\n    /*\n      Returns an array of embedded records serialized to JSON\n    */\n    _generateSerializedHasMany(snapshot, relationship) {\n      var hasMany = snapshot.hasMany(relationship.key);\n      var manyArray = Ember.A(hasMany);\n      var ret = new Array(manyArray.length);\n\n      for (var i = 0; i < manyArray.length; i++) {\n        var embeddedSnapshot = manyArray[i];\n        var embeddedJson = embeddedSnapshot.serialize({\n          includeId: true\n        });\n        this.removeEmbeddedForeignKey(snapshot, embeddedSnapshot, relationship, embeddedJson);\n        ret[i] = embeddedJson;\n      }\n\n      return ret;\n    },\n\n    /**\n      When serializing an embedded record, modify the property (in the `JSON` payload)\n      that refers to the parent record (foreign key for the relationship).\n       Serializing a `belongsTo` relationship removes the property that refers to the\n      parent record\n       Serializing a `hasMany` relationship does not remove the property that refers to\n      the parent record.\n       @method removeEmbeddedForeignKey\n      @param {Snapshot} snapshot\n      @param {Snapshot} embeddedSnapshot\n      @param {Object} relationship\n      @param {Object} json\n    */\n    removeEmbeddedForeignKey(snapshot, embeddedSnapshot, relationship, json) {\n      if (relationship.kind === 'belongsTo') {\n        var parentRecord = snapshot.type.inverseFor(relationship.key, this.store);\n\n        if (parentRecord) {\n          var name = parentRecord.name;\n          var embeddedSerializer = this.store.serializerFor(embeddedSnapshot.modelName);\n          var parentKey = embeddedSerializer.keyForRelationship(name, parentRecord.kind, 'deserialize');\n\n          if (parentKey) {\n            delete json[parentKey];\n          }\n        }\n      }\n      /*else if (relationship.kind === 'hasMany') {\n      return;\n      }*/\n\n    },\n\n    // checks config for attrs option to embedded (always) - serialize and deserialize\n    hasEmbeddedAlwaysOption(attr) {\n      var option = this.attrsOption(attr);\n      return option && option.embedded === 'always';\n    },\n\n    // checks config for attrs option to serialize ids\n    hasSerializeRecordsOption(attr) {\n      var alwaysEmbed = this.hasEmbeddedAlwaysOption(attr);\n      var option = this.attrsOption(attr);\n      return alwaysEmbed || option && option.serialize === 'records';\n    },\n\n    // checks config for attrs option to serialize records\n    hasSerializeIdsOption(attr) {\n      var option = this.attrsOption(attr);\n      return option && (option.serialize === 'ids' || option.serialize === 'id');\n    },\n\n    // checks config for attrs option to serialize records as objects containing id and types\n    hasSerializeIdsAndTypesOption(attr) {\n      var option = this.attrsOption(attr);\n      return option && (option.serialize === 'ids-and-types' || option.serialize === 'id-and-type');\n    },\n\n    // checks config for attrs option to serialize records\n    noSerializeOptionSpecified(attr) {\n      var option = this.attrsOption(attr);\n      return !(option && (option.serialize || option.embedded));\n    },\n\n    // checks config for attrs option to deserialize records\n    // a defined option object for a resource is treated the same as\n    // `deserialize: 'records'`\n    hasDeserializeRecordsOption(attr) {\n      var alwaysEmbed = this.hasEmbeddedAlwaysOption(attr);\n      var option = this.attrsOption(attr);\n      return alwaysEmbed || option && option.deserialize === 'records';\n    },\n\n    attrsOption(attr) {\n      var attrs = this.get('attrs');\n      return attrs && (attrs[Ember.String.camelize(attr)] || attrs[attr]);\n    },\n\n    /**\n     @method _extractEmbeddedRecords\n     @private\n    */\n    _extractEmbeddedRecords(serializer, store, typeClass, partial) {\n      typeClass.eachRelationship((key, relationship) => {\n        if (serializer.hasDeserializeRecordsOption(key)) {\n          if (relationship.kind === 'hasMany') {\n            this._extractEmbeddedHasMany(store, key, partial, relationship);\n          }\n\n          if (relationship.kind === 'belongsTo') {\n            this._extractEmbeddedBelongsTo(store, key, partial, relationship);\n          }\n        }\n      });\n      return partial;\n    },\n\n    /**\n     @method _extractEmbeddedHasMany\n     @private\n    */\n    _extractEmbeddedHasMany(store, key, hash, relationshipMeta) {\n      var relationshipHash = Ember.get(hash, `data.relationships.${key}.data`);\n\n      if (!relationshipHash) {\n        return;\n      }\n\n      var hasMany = new Array(relationshipHash.length);\n\n      for (var i = 0; i < relationshipHash.length; i++) {\n        var item = relationshipHash[i];\n\n        var {\n          data,\n          included\n        } = this._normalizeEmbeddedRelationship(store, relationshipMeta, item);\n\n        hash.included = hash.included || [];\n        hash.included.push(data);\n\n        if (included) {\n          hash.included.push(...included);\n        }\n\n        hasMany[i] = {\n          id: data.id,\n          type: data.type\n        };\n      }\n\n      var relationship = {\n        data: hasMany\n      };\n      Ember.set(hash, `data.relationships.${key}`, relationship);\n    },\n\n    /**\n     @method _extractEmbeddedBelongsTo\n     @private\n    */\n    _extractEmbeddedBelongsTo(store, key, hash, relationshipMeta) {\n      var relationshipHash = Ember.get(hash, `data.relationships.${key}.data`);\n\n      if (!relationshipHash) {\n        return;\n      }\n\n      var {\n        data,\n        included\n      } = this._normalizeEmbeddedRelationship(store, relationshipMeta, relationshipHash);\n\n      hash.included = hash.included || [];\n      hash.included.push(data);\n\n      if (included) {\n        hash.included.push(...included);\n      }\n\n      var belongsTo = {\n        id: data.id,\n        type: data.type\n      };\n      var relationship = {\n        data: belongsTo\n      };\n      Ember.set(hash, `data.relationships.${key}`, relationship);\n    },\n\n    /**\n     @method _normalizeEmbeddedRelationship\n     @private\n    */\n    _normalizeEmbeddedRelationship(store, relationshipMeta, relationshipHash) {\n      var modelName = relationshipMeta.type;\n\n      if (relationshipMeta.options.polymorphic) {\n        modelName = relationshipHash.type;\n      }\n\n      var modelClass = store.modelFor(modelName);\n      var serializer = store.serializerFor(modelName);\n      return serializer.normalize(modelClass, relationshipHash, null);\n    },\n\n    isEmbeddedRecordsMixin: true\n  });\n\n  /**\n    @module @ember-data/serializer\n  */\n\n  /*\n    Check if the passed model has a `type` attribute or a relationship named `type`.\n\n    @method modelHasAttributeOrRelationshipNamedType\n    @param modelClass\n   */\n  function modelHasAttributeOrRelationshipNamedType(modelClass) {\n    return Ember.get(modelClass, 'attributes').has('type') || Ember.get(modelClass, 'relationshipsByName').has('type');\n  }\n\n  /**\n    @module @ember-data/serializer\n  */\n\n  /**\n    The `Transform` class is used to serialize and deserialize model\n    attributes when they are saved or loaded from an\n    adapter. Subclassing `Transform` is useful for creating custom\n    attributes. All subclasses of `Transform` must implement a\n    `serialize` and a `deserialize` method.\n\n    Example\n\n    ```app/transforms/temperature.js\n    import Transform from '@ember-data/serializer/transform';\n\n    // Converts centigrade in the JSON to fahrenheit in the app\n    export default Transform.extend({\n      deserialize(serialized, options) {\n        return (serialized *  1.8) + 32;\n      },\n\n      serialize(deserialized, options) {\n        return (deserialized - 32) / 1.8;\n      }\n    });\n    ```\n\n    Usage\n\n    ```app/models/requirement.js\n    import Model, { attr } from '@ember-data/model';\n\n    export default Model.extend({\n      name: attr('string'),\n      temperature: attr('temperature')\n    });\n    ```\n\n    The options passed into the `attr` function when the attribute is\n    declared on the model is also available in the transform.\n\n    ```app/models/post.js\n    import Model, { attr } from '@ember-data/model';\n\n    export default Model.extend({\n      title: attr('string'),\n      markdown: attr('markdown', {\n        markdown: {\n          gfm: false,\n          sanitize: true\n        }\n      })\n    });\n    ```\n\n    ```app/transforms/markdown.js\n    import Transform from '@ember-data/serializer/transform';\n\n    export default Transform.extend({\n      serialize(deserialized, options) {\n        return deserialized.raw;\n      },\n\n      deserialize(serialized, options) {\n        var markdownOptions = options.markdown || {};\n\n        return marked(serialized, markdownOptions);\n      }\n    });\n    ```\n\n    @class Transform\n   */\n  var Transform = Ember.Object.extend({\n    /**\n      When given a deserialized value from a record attribute this\n      method must return the serialized value.\n       Example\n       ```javascript\n      import { isEmpty } from '@ember/utils';\n       serialize(deserialized, options) {\n        return isEmpty(deserialized) ? null : Number(deserialized);\n      }\n      ```\n       @method serialize\n      @param deserialized The deserialized value\n      @param options hash of options passed to `attr`\n      @return The serialized value\n    */\n    serialize: null,\n\n    /**\n      When given a serialized value from a JSON object this method must\n      return the deserialized value for the record attribute.\n       Example\n       ```javascript\n      deserialize(serialized, options) {\n        return empty(serialized) ? null : Number(serialized);\n      }\n      ```\n       @method deserialize\n      @param serialized The serialized value\n      @param options hash of options passed to `attr`\n      @return The deserialized value\n    */\n    deserialize: null\n  });\n\n  /**\n    @module @ember-data/serializer\n  */\n\n  /**\n    The `BooleanTransform` class is used to serialize and deserialize\n    boolean attributes on Ember Data record objects. This transform is\n    used when `boolean` is passed as the type parameter to the\n    [attr](/ember-data/release/functions/@ember-data%2Fmodel/attr) function.\n\n    Usage\n\n    ```app/models/user.js\n    import Model, { attr } from '@ember-data/model';\n\n    export default Model.extend({\n      isAdmin: attr('boolean'),\n      name: attr('string'),\n      email: attr('string')\n    });\n    ```\n\n    By default, the boolean transform only allows for values of `true` or\n    `false`. You can opt into allowing `null` values for\n    boolean attributes via `attr('boolean', { allowNull: true })`\n\n    ```app/models/user.js\n    import Model, { attr } from '@ember-data/model';\n\n    export default Model.extend({\n      email: attr('string'),\n      username: attr('string'),\n      wantsWeeklyEmail: attr('boolean', { allowNull: true })\n    });\n    ```\n\n    @class BooleanTransform\n    @extends Transform\n   */\n\n  var boolean = Transform.extend({\n    deserialize(serialized, options) {\n      if (Ember.isNone(serialized) && options.allowNull === true) {\n        return null;\n      }\n\n      var type = typeof serialized;\n\n      if (type === 'boolean') {\n        return serialized;\n      } else if (type === 'string') {\n        return /^(true|t|1)$/i.test(serialized);\n      } else if (type === 'number') {\n        return serialized === 1;\n      } else {\n        return false;\n      }\n    },\n\n    serialize(deserialized, options) {\n      if (Ember.isNone(deserialized) && options.allowNull === true) {\n        return null;\n      }\n\n      return Boolean(deserialized);\n    }\n\n  });\n\n  /**\n    @module @ember-data/serializer\n  */\n\n  /**\n   The `DateTransform` class is used to serialize and deserialize\n   date attributes on Ember Data record objects. This transform is used\n   when `date` is passed as the type parameter to the\n   [attr](/ember-data/release/functions/@ember-data%2Fmodel/attr) function. It uses the [`ISO 8601`](https://en.wikipedia.org/wiki/ISO_8601)\n   standard.\n\n   ```app/models/score.js\n   import Model, { attr, belongsTo } from '@ember-data/model';\n\n   export default Model.extend({\n      value: attr('number'),\n      player: belongsTo('player'),\n      date: attr('date')\n    });\n   ```\n\n   @class DateTransform\n   @extends Transform\n   */\n\n  var date = Transform.extend({\n    deserialize(serialized) {\n      var type = typeof serialized;\n\n      if (type === 'string') {\n        var offset = serialized.indexOf('+');\n\n        if (offset !== -1 && serialized.length - 5 === offset) {\n          offset += 3;\n          return new Date(serialized.slice(0, offset) + ':' + serialized.slice(offset));\n        }\n\n        return new Date(serialized);\n      } else if (type === 'number') {\n        return new Date(serialized);\n      } else if (serialized === null || serialized === undefined) {\n        // if the value is null return null\n        // if the value is not present in the data return undefined\n        return serialized;\n      } else {\n        return null;\n      }\n    },\n\n    serialize(date) {\n      if (date instanceof Date && !isNaN(date)) {\n        return date.toISOString();\n      } else {\n        return null;\n      }\n    }\n\n  });\n\n  /**\n    @module @ember-data/serializer\n  */\n\n  function isNumber(value) {\n    return value === value && value !== Infinity && value !== -Infinity;\n  }\n  /**\n    The `NumberTransform` class is used to serialize and deserialize\n    numeric attributes on Ember Data record objects. This transform is\n    used when `number` is passed as the type parameter to the\n    [attr](/ember-data/release/functions/@ember-data%2Fmodel/attr) function.\n\n    Usage\n\n    ```app/models/score.js\n    import Model, { attr, belongsTo } from '@ember-data/model';\n\n    export default Model.extend({\n      value: attr('number'),\n      player: belongsTo('player'),\n      date: attr('date')\n    });\n    ```\n\n    @class NumberTransform\n    @extends Transform\n   */\n\n\n  var number = Transform.extend({\n    deserialize(serialized) {\n      var transformed;\n\n      if (serialized === '' || serialized === null || serialized === undefined) {\n        return null;\n      } else {\n        transformed = Number(serialized);\n        return isNumber(transformed) ? transformed : null;\n      }\n    },\n\n    serialize(deserialized) {\n      var transformed;\n\n      if (deserialized === '' || deserialized === null || deserialized === undefined) {\n        return null;\n      } else {\n        transformed = Number(deserialized);\n        return isNumber(transformed) ? transformed : null;\n      }\n    }\n\n  });\n\n  /**\n    @module @ember-data/serializer\n  */\n\n  /**\n    The `StringTransform` class is used to serialize and deserialize\n    string attributes on Ember Data record objects. This transform is\n    used when `string` is passed as the type parameter to the\n    [attr](/ember-data/release/functions/@ember-data%2Fmodel/attr) function.\n\n    Usage\n\n    ```app/models/user.js\n    import Model, { attr, belongsTo } from '@ember-data/model';\n\n    export default Model.extend({\n      isAdmin: attr('boolean'),\n      name: attr('string'),\n      email: attr('string')\n    });\n    ```\n\n    @class StringTransform\n    @extends Transform\n   */\n\n  var string = Transform.extend({\n    deserialize(serialized) {\n      return Ember.isNone(serialized) ? null : String(serialized);\n    },\n\n    serialize(deserialized) {\n      return Ember.isNone(deserialized) ? null : String(deserialized);\n    }\n\n  });\n\n  exports.BooleanTransform = boolean;\n  exports.DateTransform = date;\n  exports.EmbeddedRecordsMixin = embeddedRecordsMixin;\n  exports.NumberTransform = number;\n  exports.StringTransform = string;\n  exports.Transform = Transform;\n  exports.modelHasAttributeOrRelationshipNamedType = modelHasAttributeOrRelationshipNamedType;\n\n  Object.defineProperty(exports, '__esModule', { value: true });\n\n});\n","define(\"@ember-data/serializer/index\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n    `Serializer` is an abstract base class that you should override in your\n    application to customize it for your backend. The minimum set of methods\n    that you should implement is:\n  \n      * `normalizeResponse()`\n      * `serialize()`\n  \n    And you can optionally override the following methods:\n  \n      * `normalize()`\n  \n    For an example implementation, see\n    [JSONSerializer](JSONSerializer), the included JSON serializer.\n  \n    @class Serializer\n    @extends EmberObject\n  */\n  var _default = Ember.Object.extend({\n    /**\n      The `store` property is the application's `store` that contains\n      all records. It can be used to look up serializers for other model\n      types that may be nested inside the payload response.\n       Example:\n       ```js\n      Serializer.extend({\n        extractRelationship(relationshipModelName, relationshipHash) {\n          var modelClass = this.store.modelFor(relationshipModelName);\n          var relationshipSerializer = this.store.serializerFor(relationshipModelName);\n          return relationshipSerializer.normalize(modelClass, relationshipHash);\n        }\n      });\n      ```\n       @property store\n      @type {Store}\n      @public\n    */\n\n    /**\n      The `normalizeResponse` method is used to normalize a payload from the\n      server to a JSON-API Document.\n       http://jsonapi.org/format/#document-structure\n       Example:\n       ```js\n      Serializer.extend({\n        normalizeResponse(store, primaryModelClass, payload, id, requestType) {\n          if (requestType === 'findRecord') {\n            return this.normalize(primaryModelClass, payload);\n          } else {\n            return payload.reduce(function(documentHash, item) {\n              let { data, included } = this.normalize(primaryModelClass, item);\n              documentHash.included.push(...included);\n              documentHash.data.push(data);\n              return documentHash;\n            }, { data: [], included: [] })\n          }\n        }\n      });\n      ```\n       @since 1.13.0\n      @method normalizeResponse\n      @param {Store} store\n      @param {Model} primaryModelClass\n      @param {Object} payload\n      @param {String|Number} id\n      @param {String} requestType\n      @return {Object} JSON-API Document\n    */\n    normalizeResponse: null,\n\n    /**\n      The `serialize` method is used when a record is saved in order to convert\n      the record into the form that your external data source expects.\n       `serialize` takes an optional `options` hash with a single option:\n       - `includeId`: If this is `true`, `serialize` should include the ID\n        in the serialized object it builds.\n       Example:\n       ```js\n      Serializer.extend({\n        serialize(snapshot, options) {\n          var json = {\n            id: snapshot.id\n          };\n           snapshot.eachAttribute((key, attribute) => {\n            json[key] = snapshot.attr(key);\n          });\n           snapshot.eachRelationship((key, relationship) => {\n            if (relationship.kind === 'belongsTo') {\n              json[key] = snapshot.belongsTo(key, { id: true });\n            } else if (relationship.kind === 'hasMany') {\n              json[key] = snapshot.hasMany(key, { ids: true });\n            }\n          });\n           return json;\n        },\n      });\n      ```\n       @method serialize\n      @param {Snapshot} snapshot\n      @param {Object} [options]\n      @return {Object}\n    */\n    serialize: null,\n\n    /**\n      The `normalize` method is used to convert a payload received from your\n      external data source into the normalized form `store.push()` expects. You\n      should override this method, munge the hash and return the normalized\n      payload.\n       Example:\n       ```js\n      Serializer.extend({\n        normalize(modelClass, resourceHash) {\n          var data = {\n            id:            resourceHash.id,\n            type:          modelClass.modelName,\n            attributes:    resourceHash\n          };\n          return { data: data };\n        }\n      })\n      ```\n       @method normalize\n      @param {Model} typeClass\n      @param {Object} hash\n      @return {Object}\n    */\n    normalize(typeClass, hash) {\n      return hash;\n    }\n\n  });\n\n  _exports.default = _default;\n});","define(\"@ember-data/serializer/json-api\", [\"exports\", \"ember-inflector\", \"@ember-data/serializer/json\", \"@ember-data/store\"], function (_exports, _emberInflector, _json, _store) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n    @module @ember-data/serializer\n  */\n\n  /**\n    Ember Data 2.0 Serializer:\n  \n    In Ember Data a Serializer is used to serialize and deserialize\n    records when they are transferred in and out of an external source.\n    This process involves normalizing property names, transforming\n    attribute values and serializing relationships.\n  \n    `JSONAPISerializer` supports the http://jsonapi.org/ spec and is the\n    serializer recommended by Ember Data.\n  \n    This serializer normalizes a JSON API payload that looks like:\n  \n    ```app/models/player.js\n    import Model, { attr, belongsTo } from '@ember-data/model';\n  \n    export default Model.extend({\n      name: attr('string'),\n      skill: attr('string'),\n      gamesPlayed: attr('number'),\n      club: belongsTo('club')\n    });\n    ```\n  \n    ```app/models/club.js\n    import Model, { attr, hasMany } from '@ember-data/model';\n  \n    export default Model.extend({\n      name: attr('string'),\n      location: attr('string'),\n      players: hasMany('player')\n    });\n    ```\n  \n    ```js\n      {\n        \"data\": [\n          {\n            \"attributes\": {\n              \"name\": \"Benfica\",\n              \"location\": \"Portugal\"\n            },\n            \"id\": \"1\",\n            \"relationships\": {\n              \"players\": {\n                \"data\": [\n                  {\n                    \"id\": \"3\",\n                    \"type\": \"players\"\n                  }\n                ]\n              }\n            },\n            \"type\": \"clubs\"\n          }\n        ],\n        \"included\": [\n          {\n            \"attributes\": {\n              \"name\": \"Eusebio Silva Ferreira\",\n              \"skill\": \"Rocket shot\",\n              \"games-played\": 431\n            },\n            \"id\": \"3\",\n            \"relationships\": {\n              \"club\": {\n                \"data\": {\n                  \"id\": \"1\",\n                  \"type\": \"clubs\"\n                }\n              }\n            },\n            \"type\": \"players\"\n          }\n        ]\n      }\n    ```\n  \n    to the format that the Ember Data store expects.\n  \n    ### Customizing meta\n  \n    Since a JSON API Document can have meta defined in multiple locations you can\n    use the specific serializer hooks if you need to customize the meta.\n  \n    One scenario would be to camelCase the meta keys of your payload. The example\n    below shows how this could be done using `normalizeArrayResponse` and\n    `extractRelationship`.\n  \n    ```app/serializers/application.js\n    export default JSONAPISerializer.extend({\n      normalizeArrayResponse(store, primaryModelClass, payload, id, requestType) {\n        let normalizedDocument = this._super(...arguments);\n  \n        // Customize document meta\n        normalizedDocument.meta = camelCaseKeys(normalizedDocument.meta);\n  \n        return normalizedDocument;\n      },\n  \n      extractRelationship(relationshipHash) {\n        let normalizedRelationship = this._super(...arguments);\n  \n        // Customize relationship meta\n        normalizedRelationship.meta = camelCaseKeys(normalizedRelationship.meta);\n  \n        return normalizedRelationship;\n      }\n    });\n    ```\n  \n    @since 1.13.0\n    @class JSONAPISerializer\n    @extends JSONSerializer\n  */\n  var JSONAPISerializer = _json.default.extend({\n    /**\n      @method _normalizeDocumentHelper\n      @param {Object} documentHash\n      @return {Object}\n      @private\n    */\n    _normalizeDocumentHelper(documentHash) {\n      if (Ember.typeOf(documentHash.data) === 'object') {\n        documentHash.data = this._normalizeResourceHelper(documentHash.data);\n      } else if (Array.isArray(documentHash.data)) {\n        var ret = new Array(documentHash.data.length);\n\n        for (var i = 0; i < documentHash.data.length; i++) {\n          var data = documentHash.data[i];\n          ret[i] = this._normalizeResourceHelper(data);\n        }\n\n        documentHash.data = ret;\n      }\n\n      if (Array.isArray(documentHash.included)) {\n        var _ret = new Array();\n\n        for (var _i = 0; _i < documentHash.included.length; _i++) {\n          var included = documentHash.included[_i];\n\n          var normalized = this._normalizeResourceHelper(included);\n\n          if (normalized !== null) {\n            // can be null when unknown type is encountered\n            _ret.push(normalized);\n          }\n        }\n\n        documentHash.included = _ret;\n      }\n\n      return documentHash;\n    },\n\n    /**\n      @method _normalizeRelationshipDataHelper\n      @param {Object} relationshipDataHash\n      @return {Object}\n      @private\n    */\n    _normalizeRelationshipDataHelper(relationshipDataHash) {\n      relationshipDataHash.type = this.modelNameFromPayloadKey(relationshipDataHash.type);\n      return relationshipDataHash;\n    },\n\n    /**\n      @method _normalizeResourceHelper\n      @param {Object} resourceHash\n      @return {Object}\n      @private\n    */\n    _normalizeResourceHelper(resourceHash) {\n      (true && !(!Ember.isNone(resourceHash.type)) && Ember.assert(this.warnMessageForUndefinedType(), !Ember.isNone(resourceHash.type), {\n        id: 'ds.serializer.type-is-undefined'\n      }));\n      var modelName, usedLookup;\n      modelName = this.modelNameFromPayloadKey(resourceHash.type);\n      usedLookup = 'modelNameFromPayloadKey';\n\n      if (!this.store._hasModelFor(modelName)) {\n        (true && Ember.warn(this.warnMessageNoModelForType(modelName, resourceHash.type, usedLookup), false, {\n          id: 'ds.serializer.model-for-type-missing'\n        }));\n        return null;\n      }\n\n      var modelClass = this.store.modelFor(modelName);\n      var serializer = this.store.serializerFor(modelName);\n      var {\n        data\n      } = serializer.normalize(modelClass, resourceHash);\n      return data;\n    },\n\n    /**\n      @method pushPayload\n      @param {Store} store\n      @param {Object} payload\n    */\n    pushPayload(store, payload) {\n      var normalizedPayload = this._normalizeDocumentHelper(payload);\n\n      store.push(normalizedPayload);\n    },\n\n    /**\n      @method _normalizeResponse\n      @param {Store} store\n      @param {Model} primaryModelClass\n      @param {Object} payload\n      @param {String|Number} id\n      @param {String} requestType\n      @param {Boolean} isSingle\n      @return {Object} JSON-API Document\n      @private\n    */\n    _normalizeResponse(store, primaryModelClass, payload, id, requestType, isSingle) {\n      var normalizedPayload = this._normalizeDocumentHelper(payload);\n\n      return normalizedPayload;\n    },\n\n    normalizeQueryRecordResponse() {\n      var normalized = this._super(...arguments);\n\n      (true && !(!Array.isArray(normalized.data)) && Ember.assert('Expected the primary data returned by the serializer for a `queryRecord` response to be a single object but instead it was an array.', !Array.isArray(normalized.data), {\n        id: 'ds.serializer.json-api.queryRecord-array-response'\n      }));\n      return normalized;\n    },\n\n    extractAttributes(modelClass, resourceHash) {\n      var attributes = {};\n\n      if (resourceHash.attributes) {\n        modelClass.eachAttribute(key => {\n          var attributeKey = this.keyForAttribute(key, 'deserialize');\n\n          if (resourceHash.attributes[attributeKey] !== undefined) {\n            attributes[key] = resourceHash.attributes[attributeKey];\n          }\n\n          if (true\n          /* DEBUG */\n          ) {\n            if (resourceHash.attributes[attributeKey] === undefined && resourceHash.attributes[key] !== undefined) {\n              (true && !(false) && Ember.assert(`Your payload for '${modelClass.modelName}' contains '${key}', but your serializer is setup to look for '${attributeKey}'. This is most likely because Ember Data's JSON API serializer dasherizes attribute keys by default. You should subclass JSONAPISerializer and implement 'keyForAttribute(key) { return key; }' to prevent Ember Data from customizing your attribute keys.`, false));\n            }\n          }\n        });\n      }\n\n      return attributes;\n    },\n\n    /**\n       Returns a relationship formatted as a JSON-API \"relationship object\".\n        http://jsonapi.org/format/#document-resource-object-relationships\n        @method extractRelationship\n       @param {Object} relationshipHash\n       @return {Object}\n    */\n    extractRelationship(relationshipHash) {\n      if (Ember.typeOf(relationshipHash.data) === 'object') {\n        relationshipHash.data = this._normalizeRelationshipDataHelper(relationshipHash.data);\n      }\n\n      if (Array.isArray(relationshipHash.data)) {\n        var ret = new Array(relationshipHash.data.length);\n\n        for (var i = 0; i < relationshipHash.data.length; i++) {\n          var data = relationshipHash.data[i];\n          ret[i] = this._normalizeRelationshipDataHelper(data);\n        }\n\n        relationshipHash.data = ret;\n      }\n\n      return relationshipHash;\n    },\n\n    /**\n       Returns the resource's relationships formatted as a JSON-API \"relationships object\".\n        http://jsonapi.org/format/#document-resource-object-relationships\n        @method extractRelationships\n       @param {Object} modelClass\n       @param {Object} resourceHash\n       @return {Object}\n    */\n    extractRelationships(modelClass, resourceHash) {\n      var relationships = {};\n\n      if (resourceHash.relationships) {\n        modelClass.eachRelationship((key, relationshipMeta) => {\n          var relationshipKey = this.keyForRelationship(key, relationshipMeta.kind, 'deserialize');\n\n          if (resourceHash.relationships[relationshipKey] !== undefined) {\n            var relationshipHash = resourceHash.relationships[relationshipKey];\n            relationships[key] = this.extractRelationship(relationshipHash);\n          }\n\n          if (true\n          /* DEBUG */\n          ) {\n            if (resourceHash.relationships[relationshipKey] === undefined && resourceHash.relationships[key] !== undefined) {\n              (true && !(false) && Ember.assert(`Your payload for '${modelClass.modelName}' contains '${key}', but your serializer is setup to look for '${relationshipKey}'. This is most likely because Ember Data's JSON API serializer dasherizes relationship keys by default. You should subclass JSONAPISerializer and implement 'keyForRelationship(key) { return key; }' to prevent Ember Data from customizing your relationship keys.`, false));\n            }\n          }\n        });\n      }\n\n      return relationships;\n    },\n\n    /**\n      @method _extractType\n      @param {Model} modelClass\n      @param {Object} resourceHash\n      @return {String}\n      @private\n    */\n    _extractType(modelClass, resourceHash) {\n      return this.modelNameFromPayloadKey(resourceHash.type);\n    },\n\n    /**\n      Dasherizes and singularizes the model name in the payload to match\n      the format Ember Data uses internally for the model name.\n       For example the key `posts` would be converted to `post` and the\n      key `studentAssesments` would be converted to `student-assesment`.\n       @method modelNameFromPayloadKey\n      @param {String} key\n      @return {String} the model's modelName\n    */\n    // TODO @deprecated Use modelNameFromPayloadType instead\n    modelNameFromPayloadKey(key) {\n      return (0, _emberInflector.singularize)((0, _store.normalizeModelName)(key));\n    },\n\n    /**\n      Converts the model name to a pluralized version of the model name.\n       For example `post` would be converted to `posts` and\n      `student-assesment` would be converted to `student-assesments`.\n       @method payloadKeyFromModelName\n      @param {String} modelName\n      @return {String}\n    */\n    // TODO @deprecated Use payloadTypeFromModelName instead\n    payloadKeyFromModelName(modelName) {\n      return (0, _emberInflector.pluralize)(modelName);\n    },\n\n    normalize(modelClass, resourceHash) {\n      if (resourceHash.attributes) {\n        this.normalizeUsingDeclaredMapping(modelClass, resourceHash.attributes);\n      }\n\n      if (resourceHash.relationships) {\n        this.normalizeUsingDeclaredMapping(modelClass, resourceHash.relationships);\n      }\n\n      var data = {\n        id: this.extractId(modelClass, resourceHash),\n        type: this._extractType(modelClass, resourceHash),\n        attributes: this.extractAttributes(modelClass, resourceHash),\n        relationships: this.extractRelationships(modelClass, resourceHash)\n      };\n      this.applyTransforms(modelClass, data.attributes);\n      return {\n        data\n      };\n    },\n\n    /**\n      `keyForAttribute` can be used to define rules for how to convert an\n      attribute name in your model to a key in your JSON.\n      By default `JSONAPISerializer` follows the format used on the examples of\n      http://jsonapi.org/format and uses dashes as the word separator in the JSON\n      attribute keys.\n       This behaviour can be easily customized by extending this method.\n       Example\n       ```app/serializers/application.js\n      import JSONAPISerializer from '@ember-data/serializer/json-api';\n      import { dasherize } from '@ember/string';\n       export default JSONAPISerializer.extend({\n        keyForAttribute(attr, method) {\n          return dasherize(attr).toUpperCase();\n        }\n      });\n      ```\n       @method keyForAttribute\n      @param {String} key\n      @param {String} method\n      @return {String} normalized key\n    */\n    keyForAttribute(key, method) {\n      return Ember.String.dasherize(key);\n    },\n\n    /**\n     `keyForRelationship` can be used to define a custom key when\n     serializing and deserializing relationship properties.\n     By default `JSONAPISerializer` follows the format used on the examples of\n     http://jsonapi.org/format and uses dashes as word separators in\n     relationship properties.\n      This behaviour can be easily customized by extending this method.\n      Example\n       ```app/serializers/post.js\n      import JSONAPISerializer from '@ember-data/serializer/json-api';\n      import { underscore } from '@ember/string';\n       export default JSONAPISerializer.extend({\n        keyForRelationship(key, relationship, method) {\n          return underscore(key);\n        }\n      });\n      ```\n     @method keyForRelationship\n     @param {String} key\n     @param {String} typeClass\n     @param {String} method\n     @return {String} normalized key\n    */\n    keyForRelationship(key, typeClass, method) {\n      return Ember.String.dasherize(key);\n    },\n\n    serialize(snapshot, options) {\n      var data = this._super(...arguments);\n\n      data.type = this.payloadKeyFromModelName(snapshot.modelName);\n      return {\n        data\n      };\n    },\n\n    serializeAttribute(snapshot, json, key, attribute) {\n      var type = attribute.type;\n\n      if (this._canSerialize(key)) {\n        json.attributes = json.attributes || {};\n        var value = snapshot.attr(key);\n\n        if (type) {\n          var transform = this.transformFor(type);\n          value = transform.serialize(value, attribute.options);\n        }\n\n        var payloadKey = this._getMappedKey(key, snapshot.type);\n\n        if (payloadKey === key) {\n          payloadKey = this.keyForAttribute(key, 'serialize');\n        }\n\n        json.attributes[payloadKey] = value;\n      }\n    },\n\n    serializeBelongsTo(snapshot, json, relationship) {\n      var key = relationship.key;\n\n      if (this._canSerialize(key)) {\n        var belongsTo = snapshot.belongsTo(key);\n        var belongsToIsNotNew;\n\n        if (false\n        /* CUSTOM_MODEL_CLASS */\n        ) {\n          belongsToIsNotNew = belongsTo && !belongsTo.isNew;\n        } else {\n          belongsToIsNotNew = belongsTo && belongsTo.record && !belongsTo.record.get('isNew');\n        }\n\n        if (belongsTo === null || belongsToIsNotNew) {\n          json.relationships = json.relationships || {};\n\n          var payloadKey = this._getMappedKey(key, snapshot.type);\n\n          if (payloadKey === key) {\n            payloadKey = this.keyForRelationship(key, 'belongsTo', 'serialize');\n          }\n\n          var data = null;\n\n          if (belongsTo) {\n            var payloadType = this.payloadKeyFromModelName(belongsTo.modelName);\n            data = {\n              type: payloadType,\n              id: belongsTo.id\n            };\n          }\n\n          json.relationships[payloadKey] = {\n            data\n          };\n        }\n      }\n    },\n\n    serializeHasMany(snapshot, json, relationship) {\n      var key = relationship.key;\n\n      if (this.shouldSerializeHasMany(snapshot, key, relationship)) {\n        var hasMany = snapshot.hasMany(key);\n\n        if (hasMany !== undefined) {\n          json.relationships = json.relationships || {};\n\n          var payloadKey = this._getMappedKey(key, snapshot.type);\n\n          if (payloadKey === key && this.keyForRelationship) {\n            payloadKey = this.keyForRelationship(key, 'hasMany', 'serialize');\n          } // only serialize has many relationships that are not new\n\n\n          var nonNewHasMany = hasMany.filter(item => item.record && !item.record.get('isNew'));\n          var data = new Array(nonNewHasMany.length);\n\n          for (var i = 0; i < nonNewHasMany.length; i++) {\n            var item = hasMany[i];\n            var payloadType = this.payloadKeyFromModelName(item.modelName);\n            data[i] = {\n              type: payloadType,\n              id: item.id\n            };\n          }\n\n          json.relationships[payloadKey] = {\n            data\n          };\n        }\n      }\n    }\n\n  });\n\n  if (true\n  /* DEBUG */\n  ) {\n    JSONAPISerializer.reopen({\n      willMergeMixin(props) {\n        var constructor = this.constructor;\n        (true && Ember.warn(`You've defined 'extractMeta' in ${constructor.toString()} which is not used for serializers extending JSONAPISerializer. Read more at https://api.emberjs.com/ember-data/release/classes/JSONAPISerializer on how to customize meta when using JSON API.`, Ember.isNone(props.extractMeta) || props.extractMeta === _json.default.prototype.extractMeta, {\n          id: 'ds.serializer.json-api.extractMeta'\n        }));\n        (true && Ember.warn('The JSONAPISerializer does not work with the EmbeddedRecordsMixin because the JSON API spec does not describe how to format embedded resources.', !props.isEmbeddedRecordsMixin, {\n          id: 'ds.serializer.embedded-records-mixin-not-supported'\n        }));\n      },\n\n      warnMessageForUndefinedType() {\n        return 'Encountered a resource object with an undefined type (resolved resource using ' + this.constructor.toString() + ')';\n      },\n\n      warnMessageNoModelForType(modelName, originalType, usedLookup) {\n        return `Encountered a resource object with type \"${originalType}\", but no model was found for model name \"${modelName}\" (resolved model name using '${this.constructor.toString()}.${usedLookup}(\"${originalType}\")').`;\n      }\n\n    });\n  }\n\n  var _default = JSONAPISerializer;\n  _exports.default = _default;\n});","define(\"@ember-data/serializer/json\", [\"exports\", \"@ember-data/serializer\", \"@ember-data/store\", \"@ember-data/store/-private\", \"@ember-data/serializer/-private\"], function (_exports, _serializer, _store, _private, _private2) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n    @module @ember-data/serializer\n  */\n\n  /**\n    Ember Data 2.0 Serializer:\n  \n    In Ember Data a Serializer is used to serialize and deserialize\n    records when they are transferred in and out of an external source.\n    This process involves normalizing property names, transforming\n    attribute values and serializing relationships.\n  \n    By default, Ember Data uses and recommends the `JSONAPISerializer`.\n  \n    `JSONSerializer` is useful for simpler or legacy backends that may\n    not support the http://jsonapi.org/ spec.\n  \n    For example, given the following `User` model and JSON payload:\n  \n    ```app/models/user.js\n    import Model, { attr, belongsTo, hasMany } from '@ember-data/model';\n  \n    export default Model.extend({\n      friends: hasMany('user'),\n      house: belongsTo('location'),\n  \n      name: attr('string')\n    });\n    ```\n  \n    ```js\n    {\n      id: 1,\n      name: 'Sebastian',\n      friends: [3, 4],\n      links: {\n        house: '/houses/lefkada'\n      }\n    }\n    ```\n  \n    `JSONSerializer` will normalize the JSON payload to the JSON API format that the\n    Ember Data store expects.\n  \n    You can customize how JSONSerializer processes its payload by passing options in\n    the `attrs` hash or by subclassing the `JSONSerializer` and overriding hooks:\n  \n      - To customize how a single record is normalized, use the `normalize` hook.\n      - To customize how `JSONSerializer` normalizes the whole server response, use the\n        `normalizeResponse` hook.\n      - To customize how `JSONSerializer` normalizes a specific response from the server,\n        use one of the many specific `normalizeResponse` hooks.\n      - To customize how `JSONSerializer` normalizes your id, attributes or relationships,\n        use the `extractId`, `extractAttributes` and `extractRelationships` hooks.\n  \n    The `JSONSerializer` normalization process follows these steps:\n  \n      - `normalizeResponse` - entry method to the serializer.\n      - `normalizeCreateRecordResponse` - a `normalizeResponse` for a specific operation is called.\n      - `normalizeSingleResponse`|`normalizeArrayResponse` - for methods like `createRecord` we expect\n        a single record back, while for methods like `findAll` we expect multiple records back.\n      - `normalize` - `normalizeArray` iterates and calls `normalize` for each of its records while `normalizeSingle`\n        calls it once. This is the method you most likely want to subclass.\n      - `extractId` | `extractAttributes` | `extractRelationships` - `normalize` delegates to these methods to\n        turn the record payload into the JSON API format.\n  \n    @class JSONSerializer\n    @extends Serializer\n  */\n  var JSONSerializer = _serializer.default.extend({\n    /**\n      The `primaryKey` is used when serializing and deserializing\n      data. Ember Data always uses the `id` property to store the id of\n      the record. The external source may not always follow this\n      convention. In these cases it is useful to override the\n      `primaryKey` property to match the `primaryKey` of your external\n      store.\n       Example\n       ```app/serializers/application.js\n      import JSONSerializer from '@ember-data/serializer/json';\n       export default JSONSerializer.extend({\n        primaryKey: '_id'\n      });\n      ```\n       @property primaryKey\n      @type {String}\n      @default 'id'\n    */\n    primaryKey: 'id',\n\n    /**\n      The `attrs` object can be used to declare a simple mapping between\n      property names on `Model` records and payload keys in the\n      serialized JSON object representing the record. An object with the\n      property `key` can also be used to designate the attribute's key on\n      the response payload.\n       Example\n       ```app/models/person.js\n      import Model, { attr } from '@ember-data/model';\n       export default Model.extend({\n        firstName: attr('string'),\n        lastName: attr('string'),\n        occupation: attr('string'),\n        admin: attr('boolean')\n      });\n      ```\n       ```app/serializers/person.js\n      import JSONSerializer from '@ember-data/serializer/json';\n       export default JSONSerializer.extend({\n        attrs: {\n          admin: 'is_admin',\n          occupation: { key: 'career' }\n        }\n      });\n      ```\n       You can also remove attributes and relationships by setting the `serialize`\n      key to `false` in your mapping object.\n       Example\n       ```app/serializers/person.js\n      import JSONSerializer from '@ember-data/serializer/json';\n       export default JSONSerializer.extend({\n        attrs: {\n          admin: { serialize: false },\n          occupation: { key: 'career' }\n        }\n      });\n      ```\n       When serialized:\n       ```javascript\n      {\n        \"firstName\": \"Harry\",\n        \"lastName\": \"Houdini\",\n        \"career\": \"magician\"\n      }\n      ```\n       Note that the `admin` is now not included in the payload.\n       Setting `serialize` to `true` enforces serialization for hasMany\n      relationships even if it's neither a many-to-many nor many-to-none\n      relationship.\n       @property attrs\n      @type {Object}\n    */\n    mergedProperties: ['attrs'],\n\n    /**\n     Given a subclass of `Model` and a JSON object this method will\n     iterate through each attribute of the `Model` and invoke the\n     `Transform#deserialize` method on the matching property of the\n     JSON object.  This method is typically called after the\n     serializer's `normalize` method.\n      @method applyTransforms\n     @private\n     @param {Model} typeClass\n     @param {Object} data The data to transform\n     @return {Object} data The transformed data object\n    */\n    applyTransforms(typeClass, data) {\n      var attributes = Ember.get(typeClass, 'attributes');\n      typeClass.eachTransformedAttribute((key, typeClass) => {\n        if (data[key] === undefined) {\n          return;\n        }\n\n        var transform = this.transformFor(typeClass);\n        var transformMeta = attributes.get(key);\n        data[key] = transform.deserialize(data[key], transformMeta.options);\n      });\n      return data;\n    },\n\n    /**\n      The `normalizeResponse` method is used to normalize a payload from the\n      server to a JSON-API Document.\n       http://jsonapi.org/format/#document-structure\n       This method delegates to a more specific normalize method based on\n      the `requestType`.\n       To override this method with a custom one, make sure to call\n      `return this._super(store, primaryModelClass, payload, id, requestType)` with your\n      pre-processed data.\n       Here's an example of using `normalizeResponse` manually:\n       ```javascript\n      socket.on('message', function(message) {\n        var data = message.data;\n        var modelClass = store.modelFor(data.modelName);\n        var serializer = store.serializerFor(data.modelName);\n        var normalized = serializer.normalizeSingleResponse(store, modelClass, data, data.id);\n         store.push(normalized);\n      });\n      ```\n       @since 1.13.0\n      @method normalizeResponse\n      @param {Store} store\n      @param {Model} primaryModelClass\n      @param {Object} payload\n      @param {String|Number} id\n      @param {String} requestType\n      @return {Object} JSON-API Document\n    */\n    normalizeResponse(store, primaryModelClass, payload, id, requestType) {\n      switch (requestType) {\n        case 'findRecord':\n          return this.normalizeFindRecordResponse(...arguments);\n\n        case 'queryRecord':\n          return this.normalizeQueryRecordResponse(...arguments);\n\n        case 'findAll':\n          return this.normalizeFindAllResponse(...arguments);\n\n        case 'findBelongsTo':\n          return this.normalizeFindBelongsToResponse(...arguments);\n\n        case 'findHasMany':\n          return this.normalizeFindHasManyResponse(...arguments);\n\n        case 'findMany':\n          return this.normalizeFindManyResponse(...arguments);\n\n        case 'query':\n          return this.normalizeQueryResponse(...arguments);\n\n        case 'createRecord':\n          return this.normalizeCreateRecordResponse(...arguments);\n\n        case 'deleteRecord':\n          return this.normalizeDeleteRecordResponse(...arguments);\n\n        case 'updateRecord':\n          return this.normalizeUpdateRecordResponse(...arguments);\n      }\n    },\n\n    /**\n      @since 1.13.0\n      @method normalizeFindRecordResponse\n      @param {Store} store\n      @param {Model} primaryModelClass\n      @param {Object} payload\n      @param {String|Number} id\n      @param {String} requestType\n      @return {Object} JSON-API Document\n    */\n    normalizeFindRecordResponse(store, primaryModelClass, payload, id, requestType) {\n      return this.normalizeSingleResponse(...arguments);\n    },\n\n    /**\n      @since 1.13.0\n      @method normalizeQueryRecordResponse\n      @param {Store} store\n      @param {Model} primaryModelClass\n      @param {Object} payload\n      @param {String|Number} id\n      @param {String} requestType\n      @return {Object} JSON-API Document\n    */\n    normalizeQueryRecordResponse(store, primaryModelClass, payload, id, requestType) {\n      return this.normalizeSingleResponse(...arguments);\n    },\n\n    /**\n      @since 1.13.0\n      @method normalizeFindAllResponse\n      @param {Store} store\n      @param {Model} primaryModelClass\n      @param {Object} payload\n      @param {String|Number} id\n      @param {String} requestType\n      @return {Object} JSON-API Document\n    */\n    normalizeFindAllResponse(store, primaryModelClass, payload, id, requestType) {\n      return this.normalizeArrayResponse(...arguments);\n    },\n\n    /**\n      @since 1.13.0\n      @method normalizeFindBelongsToResponse\n      @param {Store} store\n      @param {Model} primaryModelClass\n      @param {Object} payload\n      @param {String|Number} id\n      @param {String} requestType\n      @return {Object} JSON-API Document\n    */\n    normalizeFindBelongsToResponse(store, primaryModelClass, payload, id, requestType) {\n      return this.normalizeSingleResponse(...arguments);\n    },\n\n    /**\n      @since 1.13.0\n      @method normalizeFindHasManyResponse\n      @param {Store} store\n      @param {Model} primaryModelClass\n      @param {Object} payload\n      @param {String|Number} id\n      @param {String} requestType\n      @return {Object} JSON-API Document\n    */\n    normalizeFindHasManyResponse(store, primaryModelClass, payload, id, requestType) {\n      return this.normalizeArrayResponse(...arguments);\n    },\n\n    /**\n      @since 1.13.0\n      @method normalizeFindManyResponse\n      @param {Store} store\n      @param {Model} primaryModelClass\n      @param {Object} payload\n      @param {String|Number} id\n      @param {String} requestType\n      @return {Object} JSON-API Document\n    */\n    normalizeFindManyResponse(store, primaryModelClass, payload, id, requestType) {\n      return this.normalizeArrayResponse(...arguments);\n    },\n\n    /**\n      @since 1.13.0\n      @method normalizeQueryResponse\n      @param {Store} store\n      @param {Model} primaryModelClass\n      @param {Object} payload\n      @param {String|Number} id\n      @param {String} requestType\n      @return {Object} JSON-API Document\n    */\n    normalizeQueryResponse(store, primaryModelClass, payload, id, requestType) {\n      return this.normalizeArrayResponse(...arguments);\n    },\n\n    /**\n      @since 1.13.0\n      @method normalizeCreateRecordResponse\n      @param {Store} store\n      @param {Model} primaryModelClass\n      @param {Object} payload\n      @param {String|Number} id\n      @param {String} requestType\n      @return {Object} JSON-API Document\n    */\n    normalizeCreateRecordResponse(store, primaryModelClass, payload, id, requestType) {\n      return this.normalizeSaveResponse(...arguments);\n    },\n\n    /**\n      @since 1.13.0\n      @method normalizeDeleteRecordResponse\n      @param {Store} store\n      @param {Model} primaryModelClass\n      @param {Object} payload\n      @param {String|Number} id\n      @param {String} requestType\n      @return {Object} JSON-API Document\n    */\n    normalizeDeleteRecordResponse(store, primaryModelClass, payload, id, requestType) {\n      return this.normalizeSaveResponse(...arguments);\n    },\n\n    /**\n      @since 1.13.0\n      @method normalizeUpdateRecordResponse\n      @param {Store} store\n      @param {Model} primaryModelClass\n      @param {Object} payload\n      @param {String|Number} id\n      @param {String} requestType\n      @return {Object} JSON-API Document\n    */\n    normalizeUpdateRecordResponse(store, primaryModelClass, payload, id, requestType) {\n      return this.normalizeSaveResponse(...arguments);\n    },\n\n    /**\n      @since 1.13.0\n      @method normalizeSaveResponse\n      @param {Store} store\n      @param {Model} primaryModelClass\n      @param {Object} payload\n      @param {String|Number} id\n      @param {String} requestType\n      @return {Object} JSON-API Document\n    */\n    normalizeSaveResponse(store, primaryModelClass, payload, id, requestType) {\n      return this.normalizeSingleResponse(...arguments);\n    },\n\n    /**\n      @since 1.13.0\n      @method normalizeSingleResponse\n      @param {Store} store\n      @param {Model} primaryModelClass\n      @param {Object} payload\n      @param {String|Number} id\n      @param {String} requestType\n      @return {Object} JSON-API Document\n    */\n    normalizeSingleResponse(store, primaryModelClass, payload, id, requestType) {\n      return this._normalizeResponse(store, primaryModelClass, payload, id, requestType, true);\n    },\n\n    /**\n      @since 1.13.0\n      @method normalizeArrayResponse\n      @param {Store} store\n      @param {Model} primaryModelClass\n      @param {Object} payload\n      @param {String|Number} id\n      @param {String} requestType\n      @return {Object} JSON-API Document\n    */\n    normalizeArrayResponse(store, primaryModelClass, payload, id, requestType) {\n      return this._normalizeResponse(store, primaryModelClass, payload, id, requestType, false);\n    },\n\n    /**\n      @method _normalizeResponse\n      @param {Store} store\n      @param {Model} primaryModelClass\n      @param {Object} payload\n      @param {String|Number} id\n      @param {String} requestType\n      @param {Boolean} isSingle\n      @return {Object} JSON-API Document\n      @private\n    */\n    _normalizeResponse(store, primaryModelClass, payload, id, requestType, isSingle) {\n      var documentHash = {\n        data: null,\n        included: []\n      };\n      var meta = this.extractMeta(store, primaryModelClass, payload);\n\n      if (meta) {\n        (true && !(Ember.typeOf(meta) === 'object') && Ember.assert('The `meta` returned from `extractMeta` has to be an object, not \"' + Ember.typeOf(meta) + '\".', Ember.typeOf(meta) === 'object'));\n        documentHash.meta = meta;\n      }\n\n      if (isSingle) {\n        var {\n          data,\n          included\n        } = this.normalize(primaryModelClass, payload);\n        documentHash.data = data;\n\n        if (included) {\n          documentHash.included = included;\n        }\n      } else {\n        var ret = new Array(payload.length);\n\n        for (var i = 0, l = payload.length; i < l; i++) {\n          var item = payload[i];\n          var {\n            data: _data,\n            included: _included\n          } = this.normalize(primaryModelClass, item);\n\n          if (_included) {\n            documentHash.included.push(..._included);\n          }\n\n          ret[i] = _data;\n        }\n\n        documentHash.data = ret;\n      }\n\n      return documentHash;\n    },\n\n    /**\n      Normalizes a part of the JSON payload returned by\n      the server. You should override this method, munge the hash\n      and call super if you have generic normalization to do.\n       It takes the type of the record that is being normalized\n      (as a Model class), the property where the hash was\n      originally found, and the hash to normalize.\n       You can use this method, for example, to normalize underscored keys to camelized\n      or other general-purpose normalizations.\n       Example\n       ```app/serializers/application.js\n      import JSONSerializer from '@ember-data/serializer/json';\n      import { underscore } from '@ember/string';\n      import { get } from '@ember/object';\n       export default JSONSerializer.extend({\n        normalize(typeClass, hash) {\n          var fields = get(typeClass, 'fields');\n           fields.forEach(function(type, field) {\n            var payloadField = underscore(field);\n            if (field === payloadField) { return; }\n             hash[field] = hash[payloadField];\n            delete hash[payloadField];\n          });\n           return this._super.apply(this, arguments);\n        }\n      });\n      ```\n       @method normalize\n      @param {Model} typeClass\n      @param {Object} hash\n      @return {Object}\n    */\n    normalize(modelClass, resourceHash) {\n      var data = null;\n\n      if (resourceHash) {\n        this.normalizeUsingDeclaredMapping(modelClass, resourceHash);\n\n        if (Ember.typeOf(resourceHash.links) === 'object') {\n          this.normalizeUsingDeclaredMapping(modelClass, resourceHash.links);\n        }\n\n        data = {\n          id: this.extractId(modelClass, resourceHash),\n          type: modelClass.modelName,\n          attributes: this.extractAttributes(modelClass, resourceHash),\n          relationships: this.extractRelationships(modelClass, resourceHash)\n        };\n        this.applyTransforms(modelClass, data.attributes);\n      }\n\n      return {\n        data\n      };\n    },\n\n    /**\n      Returns the resource's ID.\n       @method extractId\n      @param {Object} modelClass\n      @param {Object} resourceHash\n      @return {String}\n    */\n    extractId(modelClass, resourceHash) {\n      var primaryKey = Ember.get(this, 'primaryKey');\n      var id = resourceHash[primaryKey];\n      return (0, _private.coerceId)(id);\n    },\n\n    /**\n      Returns the resource's attributes formatted as a JSON-API \"attributes object\".\n       http://jsonapi.org/format/#document-resource-object-attributes\n       @method extractAttributes\n      @param {Object} modelClass\n      @param {Object} resourceHash\n      @return {Object}\n    */\n    extractAttributes(modelClass, resourceHash) {\n      var attributeKey;\n      var attributes = {};\n      modelClass.eachAttribute(key => {\n        attributeKey = this.keyForAttribute(key, 'deserialize');\n\n        if (resourceHash[attributeKey] !== undefined) {\n          attributes[key] = resourceHash[attributeKey];\n        }\n      });\n      return attributes;\n    },\n\n    /**\n      Returns a relationship formatted as a JSON-API \"relationship object\".\n       http://jsonapi.org/format/#document-resource-object-relationships\n       @method extractRelationship\n      @param {Object} relationshipModelName\n      @param {Object} relationshipHash\n      @return {Object}\n    */\n    extractRelationship(relationshipModelName, relationshipHash) {\n      if (Ember.isNone(relationshipHash)) {\n        return null;\n      }\n      /*\n        When `relationshipHash` is an object it usually means that the relationship\n        is polymorphic. It could however also be embedded resources that the\n        EmbeddedRecordsMixin has be able to process.\n      */\n\n\n      if (Ember.typeOf(relationshipHash) === 'object') {\n        if (relationshipHash.id) {\n          relationshipHash.id = (0, _private.coerceId)(relationshipHash.id);\n        }\n\n        var modelClass = this.store.modelFor(relationshipModelName);\n\n        if (relationshipHash.type && !(0, _private2.modelHasAttributeOrRelationshipNamedType)(modelClass)) {\n          relationshipHash.type = this.modelNameFromPayloadKey(relationshipHash.type);\n        }\n\n        return relationshipHash;\n      }\n\n      return {\n        id: (0, _private.coerceId)(relationshipHash),\n        type: relationshipModelName\n      };\n    },\n\n    /**\n      Returns a polymorphic relationship formatted as a JSON-API \"relationship object\".\n       http://jsonapi.org/format/#document-resource-object-relationships\n       `relationshipOptions` is a hash which contains more information about the\n      polymorphic relationship which should be extracted:\n        - `resourceHash` complete hash of the resource the relationship should be\n          extracted from\n        - `relationshipKey` key under which the value for the relationship is\n          extracted from the resourceHash\n        - `relationshipMeta` meta information about the relationship\n       @method extractPolymorphicRelationship\n      @param {Object} relationshipModelName\n      @param {Object} relationshipHash\n      @param {Object} relationshipOptions\n      @return {Object}\n    */\n    extractPolymorphicRelationship(relationshipModelName, relationshipHash, relationshipOptions) {\n      return this.extractRelationship(relationshipModelName, relationshipHash);\n    },\n\n    /**\n      Returns the resource's relationships formatted as a JSON-API \"relationships object\".\n       http://jsonapi.org/format/#document-resource-object-relationships\n       @method extractRelationships\n      @param {Object} modelClass\n      @param {Object} resourceHash\n      @return {Object}\n    */\n    extractRelationships(modelClass, resourceHash) {\n      var relationships = {};\n      modelClass.eachRelationship((key, relationshipMeta) => {\n        var relationship = null;\n        var relationshipKey = this.keyForRelationship(key, relationshipMeta.kind, 'deserialize');\n\n        if (resourceHash[relationshipKey] !== undefined) {\n          var data = null;\n          var relationshipHash = resourceHash[relationshipKey];\n\n          if (relationshipMeta.kind === 'belongsTo') {\n            if (relationshipMeta.options.polymorphic) {\n              // extracting a polymorphic belongsTo may need more information\n              // than the type and the hash (which might only be an id) for the\n              // relationship, hence we pass the key, resource and\n              // relationshipMeta too\n              data = this.extractPolymorphicRelationship(relationshipMeta.type, relationshipHash, {\n                key,\n                resourceHash,\n                relationshipMeta\n              });\n            } else {\n              data = this.extractRelationship(relationshipMeta.type, relationshipHash);\n            }\n          } else if (relationshipMeta.kind === 'hasMany') {\n            if (!Ember.isNone(relationshipHash)) {\n              data = new Array(relationshipHash.length);\n\n              if (relationshipMeta.options.polymorphic) {\n                for (var i = 0, l = relationshipHash.length; i < l; i++) {\n                  var item = relationshipHash[i];\n                  data[i] = this.extractPolymorphicRelationship(relationshipMeta.type, item, {\n                    key,\n                    resourceHash,\n                    relationshipMeta\n                  });\n                }\n              } else {\n                for (var _i = 0, _l = relationshipHash.length; _i < _l; _i++) {\n                  var _item = relationshipHash[_i];\n                  data[_i] = this.extractRelationship(relationshipMeta.type, _item);\n                }\n              }\n            }\n          }\n\n          relationship = {\n            data\n          };\n        }\n\n        var linkKey = this.keyForLink(key, relationshipMeta.kind);\n\n        if (resourceHash.links && resourceHash.links[linkKey] !== undefined) {\n          var related = resourceHash.links[linkKey];\n          relationship = relationship || {};\n          relationship.links = {\n            related\n          };\n        }\n\n        if (relationship) {\n          relationships[key] = relationship;\n        }\n      });\n      return relationships;\n    },\n\n    /**\n      @method modelNameFromPayloadKey\n      @param {String} key\n      @return {String} the model's modelName\n    */\n    // TODO @deprecated Use modelNameFromPayloadType instead\n    modelNameFromPayloadKey(key) {\n      return (0, _store.normalizeModelName)(key);\n    },\n\n    /**\n      @method normalizeRelationships\n      @private\n    */\n    normalizeRelationships(typeClass, hash) {\n      var payloadKey;\n\n      if (this.keyForRelationship) {\n        typeClass.eachRelationship((key, relationship) => {\n          payloadKey = this.keyForRelationship(key, relationship.kind, 'deserialize');\n\n          if (key === payloadKey) {\n            return;\n          }\n\n          if (hash[payloadKey] === undefined) {\n            return;\n          }\n\n          hash[key] = hash[payloadKey];\n          delete hash[payloadKey];\n        });\n      }\n    },\n\n    /**\n      @method normalizeUsingDeclaredMapping\n      @private\n    */\n    normalizeUsingDeclaredMapping(modelClass, hash) {\n      var attrs = Ember.get(this, 'attrs');\n      var normalizedKey;\n      var payloadKey;\n\n      if (attrs) {\n        for (var key in attrs) {\n          normalizedKey = payloadKey = this._getMappedKey(key, modelClass);\n\n          if (hash[payloadKey] === undefined) {\n            continue;\n          }\n\n          if (Ember.get(modelClass, 'attributes').has(key)) {\n            normalizedKey = this.keyForAttribute(key);\n          }\n\n          if (Ember.get(modelClass, 'relationshipsByName').has(key)) {\n            normalizedKey = this.keyForRelationship(key);\n          }\n\n          if (payloadKey !== normalizedKey) {\n            hash[normalizedKey] = hash[payloadKey];\n            delete hash[payloadKey];\n          }\n        }\n      }\n    },\n\n    /**\n      Looks up the property key that was set by the custom `attr` mapping\n      passed to the serializer.\n       @method _getMappedKey\n      @private\n      @param {String} key\n      @return {String} key\n    */\n    _getMappedKey(key, modelClass) {\n      (true && Ember.warn('There is no attribute or relationship with the name `' + key + '` on `' + modelClass.modelName + '`. Check your serializers attrs hash.', Ember.get(modelClass, 'attributes').has(key) || Ember.get(modelClass, 'relationshipsByName').has(key), {\n        id: 'ds.serializer.no-mapped-attrs-key'\n      }));\n      var attrs = Ember.get(this, 'attrs');\n      var mappedKey;\n\n      if (attrs && attrs[key]) {\n        mappedKey = attrs[key]; //We need to account for both the { title: 'post_title' } and\n        //{ title: { key: 'post_title' }} forms\n\n        if (mappedKey.key) {\n          mappedKey = mappedKey.key;\n        }\n\n        if (typeof mappedKey === 'string') {\n          key = mappedKey;\n        }\n      }\n\n      return key;\n    },\n\n    /**\n      Check attrs.key.serialize property to inform if the `key`\n      can be serialized\n       @method _canSerialize\n      @private\n      @param {String} key\n      @return {boolean} true if the key can be serialized\n    */\n    _canSerialize(key) {\n      var attrs = Ember.get(this, 'attrs');\n      return !attrs || !attrs[key] || attrs[key].serialize !== false;\n    },\n\n    /**\n      When attrs.key.serialize is set to true then\n      it takes priority over the other checks and the related\n      attribute/relationship will be serialized\n       @method _mustSerialize\n      @private\n      @param {String} key\n      @return {boolean} true if the key must be serialized\n    */\n    _mustSerialize(key) {\n      var attrs = Ember.get(this, 'attrs');\n      return attrs && attrs[key] && attrs[key].serialize === true;\n    },\n\n    /**\n      Check if the given hasMany relationship should be serialized\n       By default only many-to-many and many-to-none relationships are serialized.\n      This could be configured per relationship by Serializer's `attrs` object.\n       @method shouldSerializeHasMany\n      @param {Snapshot} snapshot\n      @param {String} key\n      @param {String} relationshipType\n      @return {boolean} true if the hasMany relationship should be serialized\n    */\n    shouldSerializeHasMany(snapshot, key, relationship) {\n      var relationshipType = snapshot.type.determineRelationshipType(relationship, this.store);\n\n      if (this._mustSerialize(key)) {\n        return true;\n      }\n\n      return this._canSerialize(key) && (relationshipType === 'manyToNone' || relationshipType === 'manyToMany');\n    },\n\n    // SERIALIZE\n\n    /**\n      Called when a record is saved in order to convert the\n      record into JSON.\n       By default, it creates a JSON object with a key for\n      each attribute and belongsTo relationship.\n       For example, consider this model:\n       ```app/models/comment.js\n      import Model, { attr, belongsTo } from '@ember-data/model';\n       export default Model.extend({\n        title: attr(),\n        body: attr(),\n         author: belongsTo('user')\n      });\n      ```\n       The default serialization would create a JSON object like:\n       ```javascript\n      {\n        \"title\": \"Rails is unagi\",\n        \"body\": \"Rails? Omakase? O_O\",\n        \"author\": 12\n      }\n      ```\n       By default, attributes are passed through as-is, unless\n      you specified an attribute type (`attr('date')`). If\n      you specify a transform, the JavaScript value will be\n      serialized when inserted into the JSON hash.\n       By default, belongs-to relationships are converted into\n      IDs when inserted into the JSON hash.\n       ## IDs\n       `serialize` takes an options hash with a single option:\n      `includeId`. If this option is `true`, `serialize` will,\n      by default include the ID in the JSON object it builds.\n       The adapter passes in `includeId: true` when serializing\n      a record for `createRecord`, but not for `updateRecord`.\n       ## Customization\n       Your server may expect a different JSON format than the\n      built-in serialization format.\n       In that case, you can implement `serialize` yourself and\n      return a JSON hash of your choosing.\n       ```app/serializers/post.js\n      import JSONSerializer from '@ember-data/serializer/json';\n       export default JSONSerializer.extend({\n        serialize(snapshot, options) {\n          var json = {\n            POST_TTL: snapshot.attr('title'),\n            POST_BDY: snapshot.attr('body'),\n            POST_CMS: snapshot.hasMany('comments', { ids: true })\n          };\n           if (options.includeId) {\n            json.POST_ID_ = snapshot.id;\n          }\n           return json;\n        }\n      });\n      ```\n       ## Customizing an App-Wide Serializer\n       If you want to define a serializer for your entire\n      application, you'll probably want to use `eachAttribute`\n      and `eachRelationship` on the record.\n       ```app/serializers/application.js\n      import JSONSerializer from '@ember-data/serializer/json';\n      import { singularize } from 'ember-inflector';\n       export default JSONSerializer.extend({\n        serialize(snapshot, options) {\n          var json = {};\n           snapshot.eachAttribute(function(name) {\n            json[serverAttributeName(name)] = snapshot.attr(name);\n          });\n           snapshot.eachRelationship(function(name, relationship) {\n            if (relationship.kind === 'hasMany') {\n              json[serverHasManyName(name)] = snapshot.hasMany(name, { ids: true });\n            }\n          });\n           if (options.includeId) {\n            json.ID_ = snapshot.id;\n          }\n           return json;\n        }\n      });\n       function serverAttributeName(attribute) {\n        return attribute.underscore().toUpperCase();\n      }\n       function serverHasManyName(name) {\n        return serverAttributeName(singularize(name)) + \"_IDS\";\n      }\n      ```\n       This serializer will generate JSON that looks like this:\n       ```javascript\n      {\n        \"TITLE\": \"Rails is omakase\",\n        \"BODY\": \"Yep. Omakase.\",\n        \"COMMENT_IDS\": [ 1, 2, 3 ]\n      }\n      ```\n       ## Tweaking the Default JSON\n       If you just want to do some small tweaks on the default JSON,\n      you can call super first and make the tweaks on the returned\n      JSON.\n       ```app/serializers/post.js\n      import JSONSerializer from '@ember-data/serializer/json';\n       export default JSONSerializer.extend({\n        serialize(snapshot, options) {\n          var json = this._super(...arguments);\n           json.subject = json.title;\n          delete json.title;\n           return json;\n        }\n      });\n      ```\n       @method serialize\n      @param {Snapshot} snapshot\n      @param {Object} options\n      @return {Object} json\n    */\n    serialize(snapshot, options) {\n      var json = {};\n\n      if (options && options.includeId) {\n        var id = snapshot.id;\n\n        if (id) {\n          json[Ember.get(this, 'primaryKey')] = id;\n        }\n      }\n\n      snapshot.eachAttribute((key, attribute) => {\n        this.serializeAttribute(snapshot, json, key, attribute);\n      });\n      snapshot.eachRelationship((key, relationship) => {\n        if (relationship.kind === 'belongsTo') {\n          this.serializeBelongsTo(snapshot, json, relationship);\n        } else if (relationship.kind === 'hasMany') {\n          this.serializeHasMany(snapshot, json, relationship);\n        }\n      });\n      return json;\n    },\n\n    /**\n      You can use this method to customize how a serialized record is added to the complete\n      JSON hash to be sent to the server. By default the JSON Serializer does not namespace\n      the payload and just sends the raw serialized JSON object.\n      If your server expects namespaced keys, you should consider using the RESTSerializer.\n      Otherwise you can override this method to customize how the record is added to the hash.\n      The hash property should be modified by reference.\n       For example, your server may expect underscored root objects.\n       ```app/serializers/application.js\n      import RESTSerializer from '@ember-data/serializer/rest';\n      import { decamelize } from '@ember/string';\n       export default RESTSerializer.extend({\n        serializeIntoHash(data, type, snapshot, options) {\n          var root = decamelize(type.modelName);\n          data[root] = this.serialize(snapshot, options);\n        }\n      });\n      ```\n       @method serializeIntoHash\n      @param {Object} hash\n      @param {Model} typeClass\n      @param {Snapshot} snapshot\n      @param {Object} options\n    */\n    serializeIntoHash(hash, typeClass, snapshot, options) {\n      Ember.assign(hash, this.serialize(snapshot, options));\n    },\n\n    /**\n      `serializeAttribute` can be used to customize how `attr`\n      properties are serialized\n       For example if you wanted to ensure all your attributes were always\n      serialized as properties on an `attributes` object you could\n      write:\n       ```app/serializers/application.js\n      import JSONSerializer from '@ember-data/serializer/json';\n       export default JSONSerializer.extend({\n        serializeAttribute(snapshot, json, key, attributes) {\n          json.attributes = json.attributes || {};\n          this._super(snapshot, json.attributes, key, attributes);\n        }\n      });\n      ```\n       @method serializeAttribute\n      @param {Snapshot} snapshot\n      @param {Object} json\n      @param {String} key\n      @param {Object} attribute\n    */\n    serializeAttribute(snapshot, json, key, attribute) {\n      if (this._canSerialize(key)) {\n        var type = attribute.type;\n        var value = snapshot.attr(key);\n\n        if (type) {\n          var transform = this.transformFor(type);\n          value = transform.serialize(value, attribute.options);\n        } // if provided, use the mapping provided by `attrs` in\n        // the serializer\n\n\n        var payloadKey = this._getMappedKey(key, snapshot.type);\n\n        if (payloadKey === key && this.keyForAttribute) {\n          payloadKey = this.keyForAttribute(key, 'serialize');\n        }\n\n        json[payloadKey] = value;\n      }\n    },\n\n    /**\n      `serializeBelongsTo` can be used to customize how `belongsTo`\n      properties are serialized.\n       Example\n       ```app/serializers/post.js\n      import JSONSerializer from '@ember-data/serializer/json';\n      import { isNone } from '@ember/utils';\n       export default JSONSerializer.extend({\n        serializeBelongsTo(snapshot, json, relationship) {\n          var key = relationship.key;\n          var belongsTo = snapshot.belongsTo(key);\n           key = this.keyForRelationship ? this.keyForRelationship(key, \"belongsTo\", \"serialize\") : key;\n           json[key] = isNone(belongsTo) ? belongsTo : belongsTo.record.toJSON();\n        }\n      });\n      ```\n       @method serializeBelongsTo\n      @param {Snapshot} snapshot\n      @param {Object} json\n      @param {Object} relationship\n    */\n    serializeBelongsTo(snapshot, json, relationship) {\n      var key = relationship.key;\n\n      if (this._canSerialize(key)) {\n        var belongsToId = snapshot.belongsTo(key, {\n          id: true\n        }); // if provided, use the mapping provided by `attrs` in\n        // the serializer\n\n        var payloadKey = this._getMappedKey(key, snapshot.type);\n\n        if (payloadKey === key && this.keyForRelationship) {\n          payloadKey = this.keyForRelationship(key, 'belongsTo', 'serialize');\n        } //Need to check whether the id is there for new&async records\n\n\n        if (Ember.isNone(belongsToId)) {\n          json[payloadKey] = null;\n        } else {\n          json[payloadKey] = belongsToId;\n        }\n\n        if (relationship.options.polymorphic) {\n          this.serializePolymorphicType(snapshot, json, relationship);\n        }\n      }\n    },\n\n    /**\n     `serializeHasMany` can be used to customize how `hasMany`\n     properties are serialized.\n      Example\n      ```app/serializers/post.js\n     import JSONSerializer from '@ember-data/serializer/json';\n     import DS from 'ember-data';\n      export default JSONSerializer.extend({\n       serializeHasMany(snapshot, json, relationship) {\n         var key = relationship.key;\n         if (key === 'comments') {\n           return;\n         } else {\n           this._super(...arguments);\n         }\n       }\n     });\n     ```\n      @method serializeHasMany\n     @param {Snapshot} snapshot\n     @param {Object} json\n     @param {Object} relationship\n    */\n    serializeHasMany(snapshot, json, relationship) {\n      var key = relationship.key;\n\n      if (this.shouldSerializeHasMany(snapshot, key, relationship)) {\n        var hasMany = snapshot.hasMany(key, {\n          ids: true\n        });\n\n        if (hasMany !== undefined) {\n          // if provided, use the mapping provided by `attrs` in\n          // the serializer\n          var payloadKey = this._getMappedKey(key, snapshot.type);\n\n          if (payloadKey === key && this.keyForRelationship) {\n            payloadKey = this.keyForRelationship(key, 'hasMany', 'serialize');\n          }\n\n          json[payloadKey] = hasMany; // TODO support for polymorphic manyToNone and manyToMany relationships\n        }\n      }\n    },\n\n    /**\n      You can use this method to customize how polymorphic objects are\n      serialized. Objects are considered to be polymorphic if\n      `{ polymorphic: true }` is pass as the second argument to the\n      `belongsTo` function.\n       Example\n       ```app/serializers/comment.js\n      import JSONSerializer from '@ember-data/serializer/json';\n      import { isNone } from '@ember/utils';\n       export default JSONSerializer.extend({\n        serializePolymorphicType(snapshot, json, relationship) {\n          var key = relationship.key;\n          var belongsTo = snapshot.belongsTo(key);\n           key = this.keyForAttribute ? this.keyForAttribute(key, 'serialize') : key;\n           if (isNone(belongsTo)) {\n            json[key + '_type'] = null;\n          } else {\n            json[key + '_type'] = belongsTo.modelName;\n          }\n        }\n      });\n      ```\n       @method serializePolymorphicType\n      @param {Snapshot} snapshot\n      @param {Object} json\n      @param {Object} relationship\n    */\n    serializePolymorphicType() {},\n\n    /**\n      `extractMeta` is used to deserialize any meta information in the\n      adapter payload. By default Ember Data expects meta information to\n      be located on the `meta` property of the payload object.\n       Example\n       ```app/serializers/post.js\n      import JSONSerializer from '@ember-data/serializer/json';\n       export default JSONSerializer.extend({\n        extractMeta(store, typeClass, payload) {\n          if (payload && payload.hasOwnProperty('_pagination')) {\n            let meta = payload._pagination;\n            delete payload._pagination;\n            return meta;\n          }\n        }\n      });\n      ```\n       @method extractMeta\n      @param {Store} store\n      @param {Model} modelClass\n      @param {Object} payload\n    */\n    extractMeta(store, modelClass, payload) {\n      if (payload && payload['meta'] !== undefined) {\n        var meta = payload.meta;\n        delete payload.meta;\n        return meta;\n      }\n    },\n\n    /**\n      `extractErrors` is used to extract model errors when a call\n      to `Model#save` fails with an `InvalidError`. By default\n      Ember Data expects error information to be located on the `errors`\n      property of the payload object.\n       This serializer expects this `errors` object to be an Array similar\n      to the following, compliant with the https://jsonapi.org/format/#errors specification:\n       ```js\n      {\n        \"errors\": [\n          {\n            \"detail\": \"This username is already taken!\",\n            \"source\": {\n              \"pointer\": \"data/attributes/username\"\n            }\n          }, {\n            \"detail\": \"Doesn't look like a valid email.\",\n            \"source\": {\n              \"pointer\": \"data/attributes/email\"\n            }\n          }\n        ]\n      }\n      ```\n       The key `detail` provides a textual description of the problem.\n      Alternatively, the key `title` can be used for the same purpose.\n       The nested keys `source.pointer` detail which specific element\n      of the request data was invalid.\n       Note that JSON-API also allows for object-level errors to be placed\n      in an object with pointer `data`, signifying that the problem\n      cannot be traced to a specific attribute:\n       ```javascript\n      {\n        \"errors\": [\n          {\n            \"detail\": \"Some generic non property error message\",\n            \"source\": {\n              \"pointer\": \"data\"\n            }\n          }\n        ]\n      }\n      ```\n       When turn into a `Errors` object, you can read these errors\n      through the property `base`:\n       ```handlebars\n      {{#each model.errors.base as |error|}}\n        <div class=\"error\">\n          {{error.message}}\n        </div>\n      {{/each}}\n      ```\n       Example of alternative implementation, overriding the default\n      behavior to deal with a different format of errors:\n       ```app/serializers/post.js\n      import DS from 'ember-data';\n       export default JSONSerializer.extend({\n        extractErrors(store, typeClass, payload, id) {\n          if (payload && typeof payload === 'object' && payload._problems) {\n            payload = payload._problems;\n            this.normalizeErrors(typeClass, payload);\n          }\n          return payload;\n        }\n      });\n      ```\n       @method extractErrors\n      @param {Store} store\n      @param {Model} typeClass\n      @param {Object} payload\n      @param {(String|Number)} id\n      @return {Object} json The deserialized errors\n    */\n    extractErrors(store, typeClass, payload, id) {\n      if (payload && typeof payload === 'object' && payload.errors) {\n        payload = (0, _private.errorsArrayToHash)(payload.errors);\n        this.normalizeUsingDeclaredMapping(typeClass, payload);\n        typeClass.eachAttribute(name => {\n          var key = this.keyForAttribute(name, 'deserialize');\n\n          if (key !== name && payload[key] !== undefined) {\n            payload[name] = payload[key];\n            delete payload[key];\n          }\n        });\n        typeClass.eachRelationship(name => {\n          var key = this.keyForRelationship(name, 'deserialize');\n\n          if (key !== name && payload[key] !== undefined) {\n            payload[name] = payload[key];\n            delete payload[key];\n          }\n        });\n      }\n\n      return payload;\n    },\n\n    /**\n      `keyForAttribute` can be used to define rules for how to convert an\n      attribute name in your model to a key in your JSON.\n       Example\n       ```app/serializers/application.js\n      import JSONSerializer from '@ember-data/serializer/json';\n      import { underscore } from '@ember/string';\n       export default JSONSerializer.extend({\n        keyForAttribute(attr, method) {\n          return underscore(attr).toUpperCase();\n        }\n      });\n      ```\n       @method keyForAttribute\n      @param {String} key\n      @param {String} method\n      @return {String} normalized key\n    */\n    keyForAttribute(key, method) {\n      return key;\n    },\n\n    /**\n      `keyForRelationship` can be used to define a custom key when\n      serializing and deserializing relationship properties. By default\n      `JSONSerializer` does not provide an implementation of this method.\n       Example\n         ```app/serializers/post.js\n        import JSONSerializer from '@ember-data/serializer/json';\n        import { underscore } from '@ember/string';\n         export default JSONSerializer.extend({\n          keyForRelationship(key, relationship, method) {\n            return `rel_${underscore(key)}`;\n          }\n        });\n        ```\n       @method keyForRelationship\n      @param {String} key\n      @param {String} typeClass\n      @param {String} method\n      @return {String} normalized key\n    */\n    keyForRelationship(key, typeClass, method) {\n      return key;\n    },\n\n    /**\n     `keyForLink` can be used to define a custom key when deserializing link\n     properties.\n      @method keyForLink\n     @param {String} key\n     @param {String} kind `belongsTo` or `hasMany`\n     @return {String} normalized key\n    */\n    keyForLink(key, kind) {\n      return key;\n    },\n\n    // HELPERS\n\n    /**\n     @method transformFor\n     @private\n     @param {String} attributeType\n     @param {Boolean} skipAssertion\n     @return {Transform} transform\n    */\n    transformFor(attributeType, skipAssertion) {\n      var transform = Ember.getOwner(this).lookup('transform:' + attributeType);\n      (true && !(skipAssertion || !!transform) && Ember.assert(`Unable to find the transform for \\`attr('${attributeType}')\\``, skipAssertion || !!transform));\n      return transform;\n    }\n\n  });\n\n  var _default = JSONSerializer;\n  _exports.default = _default;\n});","define(\"@ember-data/serializer/rest\", [\"exports\", \"ember-inflector\", \"@ember-data/serializer/json\", \"@ember-data/store\", \"@ember-data/store/-private\", \"@ember-data/serializer/-private\"], function (_exports, _emberInflector, _json, _store, _private, _private2) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"EmbeddedRecordsMixin\", {\n    enumerable: true,\n    get: function () {\n      return _private2.EmbeddedRecordsMixin;\n    }\n  });\n  _exports.default = void 0;\n\n  /**\n    Normally, applications will use the `RESTSerializer` by implementing\n    the `normalize` method.\n  \n    This allows you to do whatever kind of munging you need and is\n    especially useful if your server is inconsistent and you need to\n    do munging differently for many different kinds of responses.\n  \n    See the `normalize` documentation for more information.\n  \n    ## Across the Board Normalization\n  \n    There are also a number of hooks that you might find useful to define\n    across-the-board rules for your payload. These rules will be useful\n    if your server is consistent, or if you're building an adapter for\n    an infrastructure service, like Firebase, and want to encode service\n    conventions.\n  \n    For example, if all of your keys are underscored and all-caps, but\n    otherwise consistent with the names you use in your models, you\n    can implement across-the-board rules for how to convert an attribute\n    name in your model to a key in your JSON.\n  \n    ```app/serializers/application.js\n    import RESTSerializer from '@ember-data/serializer/rest';\n    import { underscore } from '@ember/string';\n  \n    export default RESTSerializer.extend({\n      keyForAttribute(attr, method) {\n        return underscore(attr).toUpperCase();\n      }\n    });\n    ```\n  \n    You can also implement `keyForRelationship`, which takes the name\n    of the relationship as the first parameter, the kind of\n    relationship (`hasMany` or `belongsTo`) as the second parameter, and\n    the method (`serialize` or `deserialize`) as the third parameter.\n  \n    @class RESTSerializer\n    @extends JSONSerializer\n  */\n  var RESTSerializer = _json.default.extend({\n    /**\n     `keyForPolymorphicType` can be used to define a custom key when\n     serializing and deserializing a polymorphic type. By default, the\n     returned key is `${key}Type`.\n      Example\n       ```app/serializers/post.js\n      import RESTSerializer from '@ember-data/serializer/rest';\n       export default RESTSerializer.extend({\n        keyForPolymorphicType(key, relationship) {\n          var relationshipKey = this.keyForRelationship(key);\n           return 'type-' + relationshipKey;\n        }\n      });\n      ```\n      @method keyForPolymorphicType\n     @param {String} key\n     @param {String} typeClass\n     @param {String} method\n     @return {String} normalized key\n    */\n    keyForPolymorphicType(key, typeClass, method) {\n      var relationshipKey = this.keyForRelationship(key);\n      return `${relationshipKey}Type`;\n    },\n\n    /**\n      Normalizes a part of the JSON payload returned by\n      the server. You should override this method, munge the hash\n      and call super if you have generic normalization to do.\n       It takes the type of the record that is being normalized\n      (as a Model class), the property where the hash was\n      originally found, and the hash to normalize.\n       For example, if you have a payload that looks like this:\n       ```js\n      {\n        \"post\": {\n          \"id\": 1,\n          \"title\": \"Rails is omakase\",\n          \"comments\": [ 1, 2 ]\n        },\n        \"comments\": [{\n          \"id\": 1,\n          \"body\": \"FIRST\"\n        }, {\n          \"id\": 2,\n          \"body\": \"Rails is unagi\"\n        }]\n      }\n      ```\n       The `normalize` method will be called three times:\n       * With `App.Post`, `\"posts\"` and `{ id: 1, title: \"Rails is omakase\", ... }`\n      * With `App.Comment`, `\"comments\"` and `{ id: 1, body: \"FIRST\" }`\n      * With `App.Comment`, `\"comments\"` and `{ id: 2, body: \"Rails is unagi\" }`\n       You can use this method, for example, to normalize underscored keys to camelized\n      or other general-purpose normalizations. You will only need to implement\n      `normalize` and manipulate the payload as desired.\n       For example, if the `IDs` under `\"comments\"` are provided as `_id` instead of\n      `id`, you can specify how to normalize just the comments:\n       ```app/serializers/post.js\n      import RESTSerializer from '@ember-data/serializer/rest';\n       export default RESTSerializer.extend({\n        normalize(model, hash, prop) {\n          if (prop === 'comments') {\n            hash.id = hash._id;\n            delete hash._id;\n          }\n           return this._super(...arguments);\n        }\n      });\n      ```\n       On each call to the `normalize` method, the third parameter (`prop`) is always\n      one of the keys that were in the original payload or in the result of another\n      normalization as `normalizeResponse`.\n       @method normalize\n      @param {Model} modelClass\n      @param {Object} resourceHash\n      @param {String} prop\n      @return {Object}\n    */\n\n    /**\n      Normalizes an array of resource payloads and returns a JSON-API Document\n      with primary data and, if any, included data as `{ data, included }`.\n       @method _normalizeArray\n      @param {Store} store\n      @param {String} modelName\n      @param {Object} arrayHash\n      @param {String} prop\n      @return {Object}\n      @private\n    */\n    _normalizeArray(store, modelName, arrayHash, prop) {\n      var documentHash = {\n        data: [],\n        included: []\n      };\n      var modelClass = store.modelFor(modelName);\n      var serializer = store.serializerFor(modelName);\n      Ember.makeArray(arrayHash).forEach(hash => {\n        var {\n          data,\n          included\n        } = this._normalizePolymorphicRecord(store, hash, prop, modelClass, serializer);\n\n        documentHash.data.push(data);\n\n        if (included) {\n          documentHash.included.push(...included);\n        }\n      });\n      return documentHash;\n    },\n\n    _normalizePolymorphicRecord(store, hash, prop, primaryModelClass, primarySerializer) {\n      var serializer = primarySerializer;\n      var modelClass = primaryModelClass;\n      var primaryHasTypeAttribute = (0, _private2.modelHasAttributeOrRelationshipNamedType)(primaryModelClass);\n\n      if (!primaryHasTypeAttribute && hash.type) {\n        // Support polymorphic records in async relationships\n        var modelName = this.modelNameFromPayloadKey(hash.type);\n\n        if (store._hasModelFor(modelName)) {\n          serializer = store.serializerFor(modelName);\n          modelClass = store.modelFor(modelName);\n        }\n      }\n\n      return serializer.normalize(modelClass, hash, prop);\n    },\n\n    /*\n      @method _normalizeResponse\n      @param {Store} store\n      @param {Model} primaryModelClass\n      @param {Object} payload\n      @param {String|Number} id\n      @param {String} requestType\n      @param {Boolean} isSingle\n      @return {Object} JSON-API Document\n      @private\n    */\n    _normalizeResponse(store, primaryModelClass, payload, id, requestType, isSingle) {\n      var documentHash = {\n        data: null,\n        included: []\n      };\n      var meta = this.extractMeta(store, primaryModelClass, payload);\n\n      if (meta) {\n        (true && !(Ember.typeOf(meta) === 'object') && Ember.assert('The `meta` returned from `extractMeta` has to be an object, not \"' + Ember.typeOf(meta) + '\".', Ember.typeOf(meta) === 'object'));\n        documentHash.meta = meta;\n      }\n\n      var keys = Object.keys(payload);\n\n      for (var i = 0, length = keys.length; i < length; i++) {\n        var prop = keys[i];\n        var modelName = prop;\n        var forcedSecondary = false;\n        /*\n          If you want to provide sideloaded records of the same type that the\n          primary data you can do that by prefixing the key with `_`.\n           Example\n           ```\n          {\n            users: [\n              { id: 1, title: 'Tom', manager: 3 },\n              { id: 2, title: 'Yehuda', manager: 3 }\n            ],\n            _users: [\n              { id: 3, title: 'Tomster' }\n            ]\n          }\n          ```\n           This forces `_users` to be added to `included` instead of `data`.\n         */\n\n        if (prop.charAt(0) === '_') {\n          forcedSecondary = true;\n          modelName = prop.substr(1);\n        }\n\n        var typeName = this.modelNameFromPayloadKey(modelName);\n\n        if (!store._hasModelFor(typeName)) {\n          (true && Ember.warn(this.warnMessageNoModelForKey(modelName, typeName), false, {\n            id: 'ds.serializer.model-for-key-missing'\n          }));\n          continue;\n        }\n\n        var isPrimary = !forcedSecondary && this.isPrimaryType(store, typeName, primaryModelClass);\n        var value = payload[prop];\n\n        if (value === null) {\n          continue;\n        }\n\n        if (true\n        /* DEBUG */\n        ) {\n          var isQueryRecordAnArray = requestType === 'queryRecord' && isPrimary && Array.isArray(value);\n          var message = 'The adapter returned an array for the primary data of a `queryRecord` response. This is deprecated as `queryRecord` should return a single record.';\n          (true && !(!isQueryRecordAnArray) && Ember.deprecate(message, !isQueryRecordAnArray, {\n            id: 'ds.serializer.rest.queryRecord-array-response',\n            until: '3.0',\n            url: 'https://deprecations.emberjs.com/ember-data/v2.x/#toc_store-queryrecord-array-response-with-restserializer'\n          }));\n        }\n        /*\n          Support primary data as an object instead of an array.\n           Example\n           ```\n          {\n            user: { id: 1, title: 'Tom', manager: 3 }\n          }\n          ```\n         */\n\n\n        if (isPrimary && !Array.isArray(value)) {\n          var {\n            data: _data,\n            included: _included\n          } = this._normalizePolymorphicRecord(store, value, prop, primaryModelClass, this);\n\n          documentHash.data = _data;\n\n          if (_included) {\n            documentHash.included.push(..._included);\n          }\n\n          continue;\n        }\n\n        var {\n          data,\n          included\n        } = this._normalizeArray(store, typeName, value, prop);\n\n        if (included) {\n          documentHash.included.push(...included);\n        }\n\n        if (isSingle) {\n          data.forEach(resource => {\n            /*\n              Figures out if this is the primary record or not.\n               It's either:\n               1. The record with the same ID as the original request\n              2. If it's a newly created record without an ID, the first record\n                 in the array\n             */\n            var isUpdatedRecord = isPrimary && (0, _private.coerceId)(resource.id) === id;\n            var isFirstCreatedRecord = isPrimary && !id && !documentHash.data;\n\n            if (isFirstCreatedRecord || isUpdatedRecord) {\n              documentHash.data = resource;\n            } else {\n              documentHash.included.push(resource);\n            }\n          });\n        } else {\n          if (isPrimary) {\n            documentHash.data = data;\n          } else {\n            if (data) {\n              documentHash.included.push(...data);\n            }\n          }\n        }\n      }\n\n      return documentHash;\n    },\n\n    isPrimaryType(store, modelName, primaryModelClass) {\n      return (0, _store.normalizeModelName)(modelName) === primaryModelClass.modelName;\n    },\n\n    /**\n      This method allows you to push a payload containing top-level\n      collections of records organized per type.\n       ```js\n      {\n        \"posts\": [{\n          \"id\": \"1\",\n          \"title\": \"Rails is omakase\",\n          \"author\", \"1\",\n          \"comments\": [ \"1\" ]\n        }],\n        \"comments\": [{\n          \"id\": \"1\",\n          \"body\": \"FIRST\"\n        }],\n        \"users\": [{\n          \"id\": \"1\",\n          \"name\": \"@d2h\"\n        }]\n      }\n      ```\n       It will first normalize the payload, so you can use this to push\n      in data streaming in from your server structured the same way\n      that fetches and saves are structured.\n       @method pushPayload\n      @param {Store} store\n      @param {Object} payload\n    */\n    pushPayload(store, payload) {\n      var documentHash = {\n        data: [],\n        included: []\n      };\n\n      for (var prop in payload) {\n        var modelName = this.modelNameFromPayloadKey(prop);\n\n        if (!store._hasModelFor(modelName)) {\n          (true && Ember.warn(this.warnMessageNoModelForKey(prop, modelName), false, {\n            id: 'ds.serializer.model-for-key-missing'\n          }));\n          continue;\n        }\n\n        var type = store.modelFor(modelName);\n        var typeSerializer = store.serializerFor(type.modelName);\n        Ember.makeArray(payload[prop]).forEach(hash => {\n          var {\n            data,\n            included\n          } = typeSerializer.normalize(type, hash, prop);\n          documentHash.data.push(data);\n\n          if (included) {\n            documentHash.included.push(...included);\n          }\n        });\n      }\n\n      store.push(documentHash);\n    },\n\n    /**\n      This method is used to convert each JSON root key in the payload\n      into a modelName that it can use to look up the appropriate model for\n      that part of the payload.\n       For example, your server may send a model name that does not correspond with\n      the name of the model in your app. Let's take a look at an example model,\n      and an example payload:\n       ```app/models/post.js\n      import Model from '@ember-data/model';\n       export default Model.extend({\n      });\n      ```\n       ```javascript\n        {\n          \"blog/post\": {\n            \"id\": \"1\n          }\n        }\n      ```\n       Ember Data is going to normalize the payload's root key for the modelName. As a result,\n      it will try to look up the \"blog/post\" model. Since we don't have a model called \"blog/post\"\n      (or a file called app/models/blog/post.js in ember-cli), Ember Data will throw an error\n      because it cannot find the \"blog/post\" model.\n       Since we want to remove this namespace, we can define a serializer for the application that will\n      remove \"blog/\" from the payload key whenver it's encountered by Ember Data:\n       ```app/serializers/application.js\n      import RESTSerializer from '@ember-data/serializer/rest';\n       export default RESTSerializer.extend({\n        modelNameFromPayloadKey(payloadKey) {\n          if (payloadKey === 'blog/post') {\n            return this._super(payloadKey.replace('blog/', ''));\n          } else {\n           return this._super(payloadKey);\n          }\n        }\n      });\n      ```\n       After refreshing, Ember Data will appropriately look up the \"post\" model.\n       By default the modelName for a model is its\n      name in dasherized form. This means that a payload key like \"blogPost\" would be\n      normalized to \"blog-post\" when Ember Data looks up the model. Usually, Ember Data\n      can use the correct inflection to do this for you. Most of the time, you won't\n      need to override `modelNameFromPayloadKey` for this purpose.\n       @method modelNameFromPayloadKey\n      @param {String} key\n      @return {String} the model's modelName\n    */\n    modelNameFromPayloadKey(key) {\n      return (0, _emberInflector.singularize)((0, _store.normalizeModelName)(key));\n    },\n\n    // SERIALIZE\n\n    /**\n      Called when a record is saved in order to convert the\n      record into JSON.\n       By default, it creates a JSON object with a key for\n      each attribute and belongsTo relationship.\n       For example, consider this model:\n       ```app/models/comment.js\n      import Model, { attr, belongsTo } from '@ember-data/model';\n       export default Model.extend({\n        title: attr(),\n        body: attr(),\n         author: belongsTo('user')\n      });\n      ```\n       The default serialization would create a JSON object like:\n       ```js\n      {\n        \"title\": \"Rails is unagi\",\n        \"body\": \"Rails? Omakase? O_O\",\n        \"author\": 12\n      }\n      ```\n       By default, attributes are passed through as-is, unless\n      you specified an attribute type (`attr('date')`). If\n      you specify a transform, the JavaScript value will be\n      serialized when inserted into the JSON hash.\n       By default, belongs-to relationships are converted into\n      IDs when inserted into the JSON hash.\n       ## IDs\n       `serialize` takes an options hash with a single option:\n      `includeId`. If this option is `true`, `serialize` will,\n      by default include the ID in the JSON object it builds.\n       The adapter passes in `includeId: true` when serializing\n      a record for `createRecord`, but not for `updateRecord`.\n       ## Customization\n       Your server may expect a different JSON format than the\n      built-in serialization format.\n       In that case, you can implement `serialize` yourself and\n      return a JSON hash of your choosing.\n       ```app/serializers/post.js\n      import RESTSerializer from '@ember-data/serializer/rest';\n       export default RESTSerializer.extend({\n        serialize(snapshot, options) {\n          var json = {\n            POST_TTL: snapshot.attr('title'),\n            POST_BDY: snapshot.attr('body'),\n            POST_CMS: snapshot.hasMany('comments', { ids: true })\n          };\n           if (options.includeId) {\n            json.POST_ID_ = snapshot.id;\n          }\n           return json;\n        }\n      });\n      ```\n       ## Customizing an App-Wide Serializer\n       If you want to define a serializer for your entire\n      application, you'll probably want to use `eachAttribute`\n      and `eachRelationship` on the record.\n       ```app/serializers/application.js\n      import RESTSerializer from '@ember-data/serializer/rest';\n      import { pluralize } from 'ember-inflector';\n       export default RESTSerializer.extend({\n        serialize(snapshot, options) {\n          var json = {};\n           snapshot.eachAttribute(function(name) {\n            json[serverAttributeName(name)] = snapshot.attr(name);\n          });\n           snapshot.eachRelationship(function(name, relationship) {\n            if (relationship.kind === 'hasMany') {\n              json[serverHasManyName(name)] = snapshot.hasMany(name, { ids: true });\n            }\n          });\n           if (options.includeId) {\n            json.ID_ = snapshot.id;\n          }\n           return json;\n        }\n      });\n       function serverAttributeName(attribute) {\n        return attribute.underscore().toUpperCase();\n      }\n       function serverHasManyName(name) {\n        return serverAttributeName(singularize(name)) + \"_IDS\";\n      }\n      ```\n       This serializer will generate JSON that looks like this:\n       ```js\n      {\n        \"TITLE\": \"Rails is omakase\",\n        \"BODY\": \"Yep. Omakase.\",\n        \"COMMENT_IDS\": [ 1, 2, 3 ]\n      }\n      ```\n       ## Tweaking the Default JSON\n       If you just want to do some small tweaks on the default JSON,\n      you can call super first and make the tweaks on the returned\n      JSON.\n       ```app/serializers/post.js\n      import RESTSerializer from '@ember-data/serializer/rest';\n       export default RESTSerializer.extend({\n        serialize(snapshot, options) {\n          var json = this._super(snapshot, options);\n           json.subject = json.title;\n          delete json.title;\n           return json;\n        }\n      });\n      ```\n       @method serialize\n      @param {Snapshot} snapshot\n      @param {Object} options\n      @return {Object} json\n    */\n    serialize(snapshot, options) {\n      return this._super(...arguments);\n    },\n\n    /**\n      You can use this method to customize the root keys serialized into the JSON.\n      The hash property should be modified by reference (possibly using something like _.extend)\n      By default the REST Serializer sends the modelName of a model, which is a camelized\n      version of the name.\n       For example, your server may expect underscored root objects.\n       ```app/serializers/application.js\n      import RESTSerializer from '@ember-data/serializer/rest';\n      import { decamelize } from '@ember/string';\n       export default RESTSerializer.extend({\n        serializeIntoHash(data, type, record, options) {\n          var root = decamelize(type.modelName);\n          data[root] = this.serialize(record, options);\n        }\n      });\n      ```\n       @method serializeIntoHash\n      @param {Object} hash\n      @param {Model} typeClass\n      @param {Snapshot} snapshot\n      @param {Object} options\n    */\n    serializeIntoHash(hash, typeClass, snapshot, options) {\n      var normalizedRootKey = this.payloadKeyFromModelName(typeClass.modelName);\n      hash[normalizedRootKey] = this.serialize(snapshot, options);\n    },\n\n    /**\n      You can use `payloadKeyFromModelName` to override the root key for an outgoing\n      request. By default, the RESTSerializer returns a camelized version of the\n      model's name.\n       For a model called TacoParty, its `modelName` would be the string `taco-party`. The RESTSerializer\n      will send it to the server with `tacoParty` as the root key in the JSON payload:\n       ```js\n      {\n        \"tacoParty\": {\n          \"id\": \"1\",\n          \"location\": \"Matthew Beale's House\"\n        }\n      }\n      ```\n       For example, your server may expect dasherized root objects:\n       ```app/serializers/application.js\n      import RESTSerializer from '@ember-data/serializer/rest';\n      import { dasherize } from '@ember/string';\n       export default RESTSerializer.extend({\n        payloadKeyFromModelName(modelName) {\n          return dasherize(modelName);\n        }\n      });\n      ```\n       Given a `TacoParty` model, calling `save` on it would produce an outgoing\n      request like:\n       ```js\n      {\n        \"taco-party\": {\n          \"id\": \"1\",\n          \"location\": \"Matthew Beale's House\"\n        }\n      }\n      ```\n       @method payloadKeyFromModelName\n      @param {String} modelName\n      @return {String}\n    */\n    payloadKeyFromModelName(modelName) {\n      return Ember.String.camelize(modelName);\n    },\n\n    /**\n      You can use this method to customize how polymorphic objects are serialized.\n      By default the REST Serializer creates the key by appending `Type` to\n      the attribute and value from the model's camelcased model name.\n       @method serializePolymorphicType\n      @param {Snapshot} snapshot\n      @param {Object} json\n      @param {Object} relationship\n    */\n    serializePolymorphicType(snapshot, json, relationship) {\n      var key = relationship.key;\n      var typeKey = this.keyForPolymorphicType(key, relationship.type, 'serialize');\n      var belongsTo = snapshot.belongsTo(key);\n\n      if (Ember.isNone(belongsTo)) {\n        json[typeKey] = null;\n      } else {\n        json[typeKey] = Ember.String.camelize(belongsTo.modelName);\n      }\n    },\n\n    /**\n      You can use this method to customize how a polymorphic relationship should\n      be extracted.\n       @method extractPolymorphicRelationship\n      @param {Object} relationshipType\n      @param {Object} relationshipHash\n      @param {Object} relationshipOptions\n      @return {Object}\n     */\n    extractPolymorphicRelationship(relationshipType, relationshipHash, relationshipOptions) {\n      var {\n        key,\n        resourceHash,\n        relationshipMeta\n      } = relationshipOptions; // A polymorphic belongsTo relationship can be present in the payload\n      // either in the form where the `id` and the `type` are given:\n      //\n      //   {\n      //     message: { id: 1, type: 'post' }\n      //   }\n      //\n      // or by the `id` and a `<relationship>Type` attribute:\n      //\n      //   {\n      //     message: 1,\n      //     messageType: 'post'\n      //   }\n      //\n      // The next code checks if the latter case is present and returns the\n      // corresponding JSON-API representation. The former case is handled within\n      // the base class JSONSerializer.\n\n      var isPolymorphic = relationshipMeta.options.polymorphic;\n      var typeProperty = this.keyForPolymorphicType(key, relationshipType, 'deserialize');\n\n      if (isPolymorphic && resourceHash[typeProperty] !== undefined && typeof relationshipHash !== 'object') {\n        var type = this.modelNameFromPayloadKey(resourceHash[typeProperty]);\n        return {\n          id: relationshipHash,\n          type: type\n        };\n      }\n\n      return this._super(...arguments);\n    }\n\n  });\n\n  if (true\n  /* DEBUG */\n  ) {\n    RESTSerializer.reopen({\n      warnMessageNoModelForKey(prop, typeKey) {\n        return 'Encountered \"' + prop + '\" in payload, but no model was found for model name \"' + typeKey + '\" (resolved model name using ' + this.constructor.toString() + '.modelNameFromPayloadKey(\"' + prop + '\"))';\n      }\n\n    });\n  }\n\n  var _default = RESTSerializer;\n  _exports.default = _default;\n});","define(\"@ember-data/serializer/transform\", [\"exports\", \"@ember-data/serializer/-private\"], function (_exports, _private) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n    @module @ember-data/serializer\n  */\n  var _default = _private.Transform;\n  _exports.default = _default;\n});","define(\"@ember-data/store/-debug/index\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.assertPolymorphicType = void 0;\n\n  /*\n    Assert that `addedRecord` has a valid type so it can be added to the\n    relationship of the `record`.\n  \n    The assert basically checks if the `addedRecord` can be added to the\n    relationship (specified via `relationshipMeta`) of the `record`.\n  \n    This utility should only be used internally, as both record parameters must\n    be an InternalModel and the `relationshipMeta` needs to be the meta\n    information about the relationship, retrieved via\n    `record.relationshipFor(key)`.\n  \n    @method assertPolymorphicType\n    @param {InternalModel} internalModel\n    @param {RelationshipMeta} relationshipMeta retrieved via\n           `record.relationshipFor(key)`\n    @param {InternalModel} addedRecord record which\n           should be added/set for the relationship\n  */\n  var assertPolymorphicType;\n  _exports.assertPolymorphicType = assertPolymorphicType;\n\n  if (true\n  /* DEBUG */\n  ) {\n    var checkPolymorphic = function checkPolymorphic(modelClass, addedModelClass) {\n      if (modelClass.__isMixin) {\n        return modelClass.__mixin.detect(addedModelClass.PrototypeMixin) || // handle native class extension e.g. `class Post extends Model.extend(Commentable) {}`\n        modelClass.__mixin.detect(Object.getPrototypeOf(addedModelClass).PrototypeMixin);\n      }\n\n      return addedModelClass.prototype instanceof modelClass || modelClass.detect(addedModelClass);\n    };\n\n    _exports.assertPolymorphicType = assertPolymorphicType = function assertPolymorphicType(parentInternalModel, relationshipMeta, addedInternalModel, store) {\n      var addedModelName = addedInternalModel.modelName;\n      var parentModelName = parentInternalModel.modelName;\n      var key = relationshipMeta.key;\n      var relationshipModelName = relationshipMeta.type;\n      var relationshipClass = store.modelFor(relationshipModelName);\n      var addedClass = store.modelFor(addedInternalModel.modelName);\n      var assertionMessage = `The '${addedModelName}' type does not implement '${relationshipModelName}' and thus cannot be assigned to the '${key}' relationship in '${parentModelName}'. Make it a descendant of '${relationshipModelName}' or use a mixin of the same name.`;\n      (true && !(checkPolymorphic(relationshipClass, addedClass)) && Ember.assert(assertionMessage, checkPolymorphic(relationshipClass, addedClass)));\n    };\n  }\n});","define('@ember-data/store/-private', ['exports', 'require', '@ember-data/store/-debug', 'ember-inflector'], function (exports, require$1, Debug, emberInflector) { 'use strict';\n\n  require$1 = require$1 && Object.prototype.hasOwnProperty.call(require$1, 'default') ? require$1['default'] : require$1;\n\n  /**\n    @module @ember-data/store\n  */\n  // Used by the store to normalize IDs entering the store.  Despite the fact\n  // that developers may provide IDs as numbers (e.g., `store.findRecord('person', 1)`),\n  // it is important that internally we use strings, since IDs may be serialized\n  // and lose type information.  For example, Ember's router may put a record's\n  // ID into the URL, and if we later try to deserialize that URL and find the\n  // corresponding record, we will not know if it is a string or a number.\n  function coerceId(id) {\n    if (id === null || id === undefined || id === '') {\n      return null;\n    }\n\n    if (typeof id === 'string') {\n      return id;\n    }\n\n    if (typeof id === 'symbol') {\n      return id.toString();\n    }\n\n    return '' + id;\n  }\n\n  function ensureStringId(id) {\n    var normalized = null;\n\n    if (typeof id === 'string') {\n      normalized = id.length > 0 ? id : null;\n    } else if (typeof id === 'number' && !isNaN(id)) {\n      normalized = '' + id;\n    }\n\n    if (normalized === null) {\n      throw new Error(`Expected id to be a string or number, received ${String(id)}`);\n    }\n\n    return normalized;\n  }\n\n  /**\n    @module @ember-data/store\n  */\n  // All modelNames are dasherized internally. Changing this function may\n  // require changes to other normalization hooks (such as typeForRoot).\n\n  /**\n   This method normalizes a modelName into the format Ember Data uses\n   internally.\n\n    @function normalizeModelName\n    @for @ember-data/store\n    @param {String} modelName\n    @return {String} normalizedModelName\n  */\n  function normalizeModelName(modelName) {\n    return Ember.String.dasherize(modelName);\n  }\n\n  /**\n    @module @ember-data/store\n  */\n\n  /**\n   * This symbol provides a Symbol replacement for browsers that do not have it\n   * (eg. IE 11).\n   *\n   * The replacement is different from the native Symbol in some ways. It is a\n   * function that produces an output:\n   * - iterable;\n   * - that is a string, not a symbol.\n   *\n   * @internal\n   */\n  var symbol = typeof Symbol !== 'undefined' ? Symbol : key => `__${key}${Math.floor(Math.random() * Date.now())}__`;\n  function addSymbol(obj, symbol, value) {\n    if (typeof symbol === 'string') {\n      Object.defineProperty(obj, symbol, {\n        value,\n        configurable: false,\n        enumerable: false,\n        writable: false\n      });\n    } else {\n      // Typescript doesn't allow Symbol as an index type\n      obj[symbol] = value;\n    }\n  }\n\n  /**\n    @module @ember-data/store\n  */\n\n  var DEBUG_CLIENT_ORIGINATED = symbol('record-originated-on-client');\n  var DEBUG_IDENTIFIER_BUCKET = symbol('identifier-bucket');\n\n  function isNonEmptyString(str) {\n    return typeof str === 'string' && str.length > 0;\n  }\n\n  /**\n    @module @ember-data/store\n  */\n  var IDENTIFIERS = new WeakMap();\n  function isStableIdentifier(identifier) {\n    return IDENTIFIERS.has(identifier);\n  }\n  function markStableIdentifier(identifier) {\n    IDENTIFIERS.set(identifier, 'is-identifier');\n  }\n  function unmarkStableIdentifier(identifier) {\n    IDENTIFIERS.delete(identifier);\n  }\n\n  /**\n    @module @ember-data/store\n  */\n  // support IE11\n  var CRYPTO = (() => {\n    var hasWindow = typeof window !== 'undefined';\n    var isFastBoot = typeof FastBoot !== 'undefined';\n\n    if (isFastBoot) {\n      return {\n        getRandomValues(buffer) {\n          try {\n            return FastBoot.require('crypto').randomFillSync(buffer);\n          } catch (err) {\n            throw new Error('Using createRecord in Fastboot requires you to add the \"crypto\" package to \"fastbootDependencies\" in your package.json');\n          }\n        }\n\n      };\n    } else if (hasWindow && typeof window.crypto !== 'undefined') {\n      return window.crypto;\n    } else if (hasWindow && typeof window.msCrypto !== 'undefined' && typeof window.msCrypto.getRandomValues === 'function') {\n      return window.msCrypto;\n    } else {\n      throw new Error('ember-data: Cannot find a valid way to generate local identifiers');\n    }\n  })(); // we might be able to optimize this by requesting more bytes than we need at a time\n\n\n  function rng() {\n    // WHATWG crypto RNG - http://wiki.whatwg.org/wiki/Crypto\n    var rnds8 = new Uint8Array(16);\n    return CRYPTO.getRandomValues(rnds8);\n  }\n  /**\n   * Convert array of 16 byte values to UUID string format of the form:\n   * XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX\n   */\n\n\n  var byteToHex = [];\n\n  for (var i = 0; i < 256; ++i) {\n    byteToHex[i] = (i + 0x100).toString(16).substr(1);\n  }\n\n  function bytesToUuid(buf) {\n    var bth = byteToHex; // join used to fix memory issue caused by concatenation: https://bugs.chromium.org/p/v8/issues/detail?id=3175#c4\n\n    return [bth[buf[0]], bth[buf[1]], bth[buf[2]], bth[buf[3]], '-', bth[buf[4]], bth[buf[5]], '-', bth[buf[6]], bth[buf[7]], '-', bth[buf[8]], bth[buf[9]], '-', bth[buf[10]], bth[buf[11]], bth[buf[12]], bth[buf[13]], bth[buf[14]], bth[buf[15]]].join('');\n  }\n\n  function uuidv4() {\n    var rnds = rng(); // Per 4.4, set bits for version and `clock_seq_hi_and_reserved`\n\n    rnds[6] = rnds[6] & 0x0f | 0x40;\n    rnds[8] = rnds[8] & 0x3f | 0x80;\n    return bytesToUuid(rnds);\n  }\n\n  function freeze(obj) {\n    if (typeof Object.freeze === 'function') {\n      return Object.freeze(obj);\n    }\n\n    return obj;\n  }\n  /**\n    @module @ember-data/store\n  */\n\n\n  var configuredForgetMethod;\n  var configuredGenerationMethod;\n  var configuredResetMethod;\n  var configuredUpdateMethod;\n  function setIdentifierGenerationMethod(method) {\n    configuredGenerationMethod = method;\n  }\n  function setIdentifierUpdateMethod(method) {\n    configuredUpdateMethod = method;\n  }\n  function setIdentifierForgetMethod(method) {\n    configuredForgetMethod = method;\n  }\n  function setIdentifierResetMethod(method) {\n    configuredResetMethod = method;\n  }\n\n  function defaultGenerationMethod(data, bucket) {\n    if (isNonEmptyString(data.lid)) {\n      return data.lid;\n    }\n\n    var {\n      type,\n      id\n    } = data;\n\n    if (isNonEmptyString(id)) {\n      return `@ember-data:lid-${normalizeModelName(type)}-${id}`;\n    }\n\n    return uuidv4();\n  }\n\n  var IdentifierCaches = new WeakMap();\n  function identifierCacheFor(store) {\n    var cache = IdentifierCaches.get(store);\n\n    if (cache === undefined) {\n      cache = new IdentifierCache();\n      IdentifierCaches.set(store, cache);\n    }\n\n    return cache;\n  }\n\n  function defaultEmptyCallback(...args) {}\n\n  var DEBUG_MAP;\n\n  {\n    DEBUG_MAP = new WeakMap();\n  }\n\n  class IdentifierCache {\n    // Typescript still leaks private properties in the final\n    // compiled class, so we may want to move these from _underscore\n    // to a WeakMap to avoid leaking\n    // currently we leak this for test purposes\n    constructor() {\n      this._cache = {\n        lids: Object.create(null),\n        types: Object.create(null)\n      };\n      this._generate = void 0;\n      this._update = void 0;\n      this._forget = void 0;\n      this._reset = void 0;\n      this._merge = void 0;\n      // we cache the user configuredGenerationMethod at init because it must\n      // be configured prior and is not allowed to be changed\n      this._generate = configuredGenerationMethod || defaultGenerationMethod;\n      this._update = configuredUpdateMethod || defaultEmptyCallback;\n      this._forget = configuredForgetMethod || defaultEmptyCallback;\n      this._reset = configuredResetMethod || defaultEmptyCallback;\n      this._merge = defaultEmptyCallback;\n    }\n    /**\n     * hook to allow management of merge conflicts with identifiers.\n     *\n     * we allow late binding of this private internal merge so that `internalModelFactory`\n     * can insert itself here to handle elimination of duplicates\n     *\n     * @internal\n     */\n\n\n    __configureMerge(method) {\n      this._merge = method || defaultEmptyCallback;\n    }\n    /**\n     * @internal\n     */\n\n\n    _getRecordIdentifier(resource, shouldGenerate = false) {\n      // short circuit if we're already the stable version\n      if (isStableIdentifier(resource)) {\n        {\n          // TODO should we instead just treat this case as a new generation skipping the short circuit?\n          if (!(resource.lid in this._cache.lids) || this._cache.lids[resource.lid] !== resource) {\n            throw new Error(`The supplied identifier ${resource} does not belong to this store instance`);\n          }\n        }\n\n        return resource;\n      } // `type` must always be present\n\n\n      {\n        if (!isNonEmptyString(resource.type)) {\n          throw new Error('resource.type needs to be a string');\n        }\n      }\n\n      var type = normalizeModelName(resource.type);\n      var keyOptions = getTypeIndex(this._cache.types, type);\n      var identifier;\n      var lid = coerceId(resource.lid);\n      var id = coerceId(resource.id); // go straight for the stable RecordIdentifier key'd to `lid`\n\n      if (lid !== null) {\n        identifier = keyOptions.lid[lid];\n      } // we may have not seen this resource before\n      // but just in case we check our own secondary lookup (`id`)\n\n\n      if (identifier === undefined && id !== null) {\n        identifier = keyOptions.id[id];\n      }\n\n      if (identifier === undefined) {\n        // we have definitely not seen this resource before\n        // so we allow the user configured `GenerationMethod` to tell us\n        var newLid = this._generate(resource, 'record'); // we do this _even_ when `lid` is present because secondary lookups\n        // may need to be populated, but we enforce not giving us something\n        // different than expected\n\n\n        if (lid !== null && newLid !== lid) {\n          throw new Error(`You should not change the <lid> of a RecordIdentifier`);\n        } else if (lid === null) {\n          // allow configuration to tell us that we have\n          // seen this `lid` before. E.g. a secondary lookup\n          // connects this resource to a previously seen\n          // resource.\n          identifier = keyOptions.lid[newLid];\n        }\n\n        if (shouldGenerate === true) {\n          if (identifier === undefined) {\n            // if we still don't have an identifier, time to generate one\n            identifier = makeStableRecordIdentifier(id, type, newLid, 'record', false); // populate our unique table\n\n            {\n              // realistically if you hit this it means you changed `type` :/\n              // TODO consider how to handle type change assertions more gracefully\n              if (identifier.lid in this._cache.lids) {\n                throw new Error(`You should not change the <type> of a RecordIdentifier`);\n              }\n            }\n\n            this._cache.lids[identifier.lid] = identifier; // populate our primary lookup table\n            // TODO consider having the `lid` cache be\n            // one level up\n\n            keyOptions.lid[identifier.lid] = identifier; // TODO exists temporarily to support `peekAll`\n            // but likely to move\n\n            keyOptions._allIdentifiers.push(identifier);\n          } // populate our own secondary lookup table\n          // even for the \"successful\" secondary lookup\n          // by `_generate()`, since we missed the cache\n          // previously\n          // we use identifier.id instead of id here\n          // because they may not match and we prefer\n          // what we've set via resource data\n\n\n          if (identifier.id !== null) {\n            keyOptions.id[identifier.id] = identifier; // TODO allow filling out of `id` here\n            // for the `username` non-client created\n            // case.\n          }\n        }\n      }\n\n      return identifier;\n    }\n    /**\n     * allows us to peek without generating when needed\n     * useful for the \"create\" case when we need to see if\n     * we are accidentally overwritting something\n     *\n     * @internal\n     */\n\n\n    peekRecordIdentifier(resource) {\n      return this._getRecordIdentifier(resource, false);\n    }\n    /*\n      Returns the Identifier for the given Resource, creates one if it does not yet exist.\n       Specifically this means that we:\n       - validate the `id` `type` and `lid` combo against known identifiers\n      - return an object with an `lid` that is stable (repeated calls with the same\n        `id` + `type` or `lid` will return the same `lid` value)\n      - this referential stability of the object itself is guaranteed\n    */\n\n\n    getOrCreateRecordIdentifier(resource) {\n      return this._getRecordIdentifier(resource, true);\n    }\n    /*\n     Returns a new Identifier for the supplied data. Call this method to generate\n     an identifier when a new resource is being created local to the client and\n     potentially does not have an `id`.\n      Delegates generation to the user supplied `GenerateMethod` if one has been provided\n     with the signature `generateMethod({ type }, 'record')`.\n     */\n\n\n    createIdentifierForNewRecord(data) {\n      var newLid = this._generate(data, 'record');\n\n      var identifier = makeStableRecordIdentifier(data.id || null, data.type, newLid, 'record', true);\n      var keyOptions = getTypeIndex(this._cache.types, data.type); // populate our unique table\n\n      {\n        if (identifier.lid in this._cache.lids) {\n          throw new Error(`The lid generated for the new record is not unique as it matches an existing identifier`);\n        }\n      }\n\n      this._cache.lids[identifier.lid] = identifier; // populate the type+lid cache\n\n      keyOptions.lid[newLid] = identifier; // ensure a peekAll sees our new identifier too\n      // TODO move this outta here?\n\n      keyOptions._allIdentifiers.push(identifier);\n\n      return identifier;\n    }\n    /*\n     Provides the opportunity to update secondary lookup tables for existing identifiers\n     Called after an identifier created with `createIdentifierForNewRecord` has been\n     committed.\n      Assigned `id` to an `Identifier` if `id` has not previously existed; however,\n     attempting to change the `id` or calling update without providing an `id` when\n     one is missing will throw an error.\n       - sets `id` (if `id` was previously `null`)\n      - `lid` and `type` MUST NOT be altered post creation\n       If a merge occurs, it is possible the returned identifier does not match the originally\n      provided identifier. In this case the abandoned identifier will go through the usual\n      `forgetRecordIdentifier` codepaths.\n    */\n\n\n    updateRecordIdentifier(identifierObject, data) {\n      var identifier = this.getOrCreateRecordIdentifier(identifierObject);\n      var id = identifier.id;\n      var newId = coerceId(data.id);\n      var keyOptions = getTypeIndex(this._cache.types, identifier.type);\n      var existingIdentifier = detectMerge(keyOptions, identifier, data, newId, this._cache.lids);\n\n      if (existingIdentifier) {\n        identifier = this._mergeRecordIdentifiers(keyOptions, identifier, existingIdentifier, data, newId);\n      }\n\n      id = identifier.id;\n      performRecordIdentifierUpdate(identifier, data, this._update);\n      newId = identifier.id; // add to our own secondary lookup table\n\n      if (id !== newId && newId !== null) {\n        var _keyOptions = getTypeIndex(this._cache.types, identifier.type);\n\n        _keyOptions.id[newId] = identifier;\n\n        if (id !== null) {\n          delete _keyOptions.id[id];\n        }\n      }\n\n      return identifier;\n    }\n\n    _mergeRecordIdentifiers(keyOptions, identifier, existingIdentifier, data, newId) {\n      // delegate determining which identifier to keep to the configured MergeMethod\n      var kept = this._merge(identifier, existingIdentifier, data);\n\n      var abandoned = kept === identifier ? existingIdentifier : identifier; // cleanup the identifier we no longer need\n\n      this.forgetRecordIdentifier(abandoned); // ensure a secondary cache entry for this id for the identifier we do keep\n\n      keyOptions.id[newId] = kept; // ensure a secondary cache entry for this id for the abandoned identifier's type we do keep\n\n      var baseKeyOptions = getTypeIndex(this._cache.types, existingIdentifier.type);\n      baseKeyOptions.id[newId] = kept; // make sure that the `lid` on the data we are processing matches the lid we kept\n\n      data.lid = kept.lid;\n      return kept;\n    }\n    /*\n     Provides the opportunity to eliminate an identifier from secondary lookup tables\n     as well as eliminates it from ember-data's own lookup tables and book keeping.\n      Useful when a record has been deleted and the deletion has been persisted and\n     we do not care about the record anymore. Especially useful when an `id` of a\n     deleted record might be reused later for a new record.\n    */\n\n\n    forgetRecordIdentifier(identifierObject) {\n      var identifier = this.getOrCreateRecordIdentifier(identifierObject);\n      var keyOptions = getTypeIndex(this._cache.types, identifier.type);\n\n      if (identifier.id !== null) {\n        delete keyOptions.id[identifier.id];\n      }\n\n      delete this._cache.lids[identifier.lid];\n      delete keyOptions.lid[identifier.lid];\n\n      var index = keyOptions._allIdentifiers.indexOf(identifier);\n\n      keyOptions._allIdentifiers.splice(index, 1);\n\n      unmarkStableIdentifier(identifierObject);\n\n      this._forget(identifier, 'record');\n    }\n\n    destroy() {\n      this._reset();\n    }\n\n  }\n\n  function getTypeIndex(typeMap, type) {\n    var typeIndex = typeMap[type];\n\n    if (typeIndex === undefined) {\n      typeIndex = {\n        lid: Object.create(null),\n        id: Object.create(null),\n        _allIdentifiers: []\n      };\n      typeMap[type] = typeIndex;\n    }\n\n    return typeIndex;\n  }\n\n  function makeStableRecordIdentifier(id, type, lid, bucket, clientOriginated = false) {\n    var recordIdentifier = {\n      lid,\n      id,\n      type\n    };\n    markStableIdentifier(recordIdentifier);\n\n    {\n      // we enforce immutability in dev\n      //  but preserve our ability to do controlled updates to the reference\n      var wrapper = {\n        get lid() {\n          return recordIdentifier.lid;\n        },\n\n        get id() {\n          return recordIdentifier.id;\n        },\n\n        get type() {\n          return recordIdentifier.type;\n        },\n\n        toString() {\n          var {\n            type,\n            id,\n            lid\n          } = recordIdentifier;\n          return `${clientOriginated ? '[CLIENT_ORIGINATED] ' : ''}${type}:${id} (${lid})`;\n        }\n\n      };\n      addSymbol(wrapper, DEBUG_CLIENT_ORIGINATED, clientOriginated);\n      addSymbol(wrapper, DEBUG_IDENTIFIER_BUCKET, bucket);\n      wrapper = freeze(wrapper);\n      markStableIdentifier(wrapper);\n      DEBUG_MAP.set(wrapper, recordIdentifier);\n      return wrapper;\n    }\n  }\n\n  function performRecordIdentifierUpdate(identifier, data, updateFn) {\n    var {\n      id,\n      lid\n    } = data;\n    var type = normalizeModelName(data.type);\n\n    {\n      // get the mutable instance behind our proxy wrapper\n      var wrapper = identifier;\n      identifier = DEBUG_MAP.get(wrapper);\n\n      if (lid !== undefined) {\n        var newLid = coerceId(lid);\n\n        if (newLid !== identifier.lid) {\n          throw new Error(`The 'lid' for a RecordIdentifier cannot be updated once it has been created. Attempted to set lid for '${wrapper}' to '${lid}'.`);\n        }\n      }\n\n      if (id !== undefined) {\n        var newId = coerceId(id);\n\n        if (identifier.id !== null && identifier.id !== newId) {\n          // here we warn and ignore, as this may be a mistake, but we allow the user\n          // to have multiple cache-keys pointing at a single lid so we cannot error\n          ( Ember.warn(`The 'id' for a RecordIdentifier should not be updated once it has been set. Attempted to set id for '${wrapper}' to '${newId}'.`, false, {\n            id: 'ember-data:multiple-ids-for-identifier'\n          }));\n        }\n      } // TODO consider just ignoring here to allow flexible polymorphic support\n\n\n      if (type !== identifier.type) {\n        throw new Error(`The 'type' for a RecordIdentifier cannot be updated once it has been set. Attempted to set type for '${wrapper}' to '${type}'.`);\n      }\n\n      updateFn(wrapper, data, 'record');\n    } // upgrade the ID, this is a \"one time only\" ability\n    // for the multiple-cache-key scenario we \"could\"\n    // use a heuristic to guess the best id for display\n    // (usually when `data.id` is available and `data.attributes` is not)\n\n\n    if (id !== undefined) {\n      identifier.id = coerceId(id);\n    }\n  }\n\n  function detectMerge(keyOptions, identifier, data, newId, lids) {\n    var {\n      id,\n      type,\n      lid\n    } = identifier;\n\n    if (id !== null && id !== newId && newId !== null) {\n      var existingIdentifier = keyOptions.id[newId];\n      return existingIdentifier !== undefined ? existingIdentifier : false;\n    } else {\n      var newType = normalizeModelName(data.type);\n\n      if (id !== null && id === newId && newType === type && data.lid && data.lid !== lid) {\n        var _existingIdentifier = lids[data.lid];\n        return _existingIdentifier !== undefined ? _existingIdentifier : false;\n      }\n    }\n\n    return false;\n  }\n\n  function constructResource(type, id, lid) {\n    var trueId = coerceId(id);\n\n    if (!isNonEmptyString(trueId)) {\n      if (isNonEmptyString(lid)) {\n        return {\n          type,\n          id: trueId,\n          lid\n        };\n      }\n\n      throw new Error(`Expected either id or lid to be a valid string`);\n    }\n\n    if (isNonEmptyString(lid)) {\n      return {\n        type,\n        id: trueId,\n        lid\n      };\n    }\n\n    return {\n      type,\n      id: trueId\n    };\n  }\n\n  /**\n    @module @ember-data/store\n  */\n\n  /**\n    A `PromiseArray` is an object that acts like both an `Ember.Array`\n    and a promise. When the promise is resolved the resulting value\n    will be set to the `PromiseArray`'s `content` property. This makes\n    it easy to create data bindings with the `PromiseArray` that will be\n    updated when the promise resolves.\n\n    For more information see the [Ember.PromiseProxyMixin\n    documentation](/api/classes/Ember.PromiseProxyMixin.html).\n\n    Example\n\n    ```javascript\n    let promiseArray = PromiseArray.create({\n      promise: $.getJSON('/some/remote/data.json')\n    });\n\n    promiseArray.get('length'); // 0\n\n    promiseArray.then(function() {\n      promiseArray.get('length'); // 100\n    });\n    ```\n\n    @class PromiseArray\n    @extends Ember.ArrayProxy\n    @uses Ember.PromiseProxyMixin\n  */\n  var PromiseArray = Ember.ArrayProxy.extend(Ember.PromiseProxyMixin, {\n    meta: Ember.computed.reads('content.meta')\n  });\n  /**\n    A `PromiseObject` is an object that acts like both an `EmberObject`\n    and a promise. When the promise is resolved, then the resulting value\n    will be set to the `PromiseObject`'s `content` property. This makes\n    it easy to create data bindings with the `PromiseObject` that will\n    be updated when the promise resolves.\n\n    For more information see the [Ember.PromiseProxyMixin\n    documentation](/api/classes/Ember.PromiseProxyMixin.html).\n\n    Example\n\n    ```javascript\n    let promiseObject = PromiseObject.create({\n      promise: $.getJSON('/some/remote/data.json')\n    });\n\n    promiseObject.get('name'); // null\n\n    promiseObject.then(function() {\n      promiseObject.get('name'); // 'Tomster'\n    });\n    ```\n\n    @class PromiseObject\n    @extends Ember.ObjectProxy\n    @uses Ember.PromiseProxyMixin\n  */\n\n  var PromiseObject = Ember.ObjectProxy.extend(Ember.PromiseProxyMixin);\n  function promiseObject(promise, label) {\n    return PromiseObject.create({\n      promise: Ember.RSVP.Promise.resolve(promise, label)\n    });\n  }\n  function promiseArray(promise, label) {\n    return PromiseArray.create({\n      promise: Ember.RSVP.Promise.resolve(promise, label)\n    });\n  }\n\n  /**\n    @module @ember-data/store\n  */\n\n  /**\n   * Get the materialized model from the internalModel/promise\n   * that returns an internal model and return it in a promiseObject.\n   *\n   * Useful for returning from find methods\n   *\n   * @internal\n   */\n  function promiseRecord(internalModelPromise, label) {\n    var toReturn = internalModelPromise.then(internalModel => internalModel.getRecord());\n    return promiseObject(toReturn, label);\n  }\n\n  var backburner = new Ember._Backburner(['normalizeRelationships', 'syncRelationships', 'finished']);\n\n  {\n    Ember.Test.registerWaiter(() => {\n      return !backburner.currentInstance && !backburner.hasTimers();\n    });\n  }\n\n  /**\n    @module @ember-data/store\n  */\n  var SOURCE_POINTER_REGEXP = /^\\/?data\\/(attributes|relationships)\\/(.*)/;\n  var SOURCE_POINTER_PRIMARY_REGEXP = /^\\/?data/;\n  var PRIMARY_ATTRIBUTE_KEY = 'base';\n  /**\n    Convert an hash of errors into an array with errors in JSON-API format.\n     ```javascript\n    import DS from 'ember-data';\n     const { errorsHashToArray } = DS;\n     let errors = {\n      base: 'Invalid attributes on saving this record',\n      name: 'Must be present',\n      age: ['Must be present', 'Must be a number']\n    };\n     let errorsArray = errorsHashToArray(errors);\n    // [\n    //   {\n    //     title: \"Invalid Document\",\n    //     detail: \"Invalid attributes on saving this record\",\n    //     source: { pointer: \"/data\" }\n    //   },\n    //   {\n    //     title: \"Invalid Attribute\",\n    //     detail: \"Must be present\",\n    //     source: { pointer: \"/data/attributes/name\" }\n    //   },\n    //   {\n    //     title: \"Invalid Attribute\",\n    //     detail: \"Must be present\",\n    //     source: { pointer: \"/data/attributes/age\" }\n    //   },\n    //   {\n    //     title: \"Invalid Attribute\",\n    //     detail: \"Must be a number\",\n    //     source: { pointer: \"/data/attributes/age\" }\n    //   }\n    // ]\n    ```\n    @method errorsHashToArray\n    @public\n    @param {Object} errors hash with errors as properties\n    @return {Array} array of errors in JSON-API format\n  */\n\n  function errorsHashToArray(errors) {\n    var out = [];\n\n    if (Ember.isPresent(errors)) {\n      Object.keys(errors).forEach(key => {\n        var messages = Ember.makeArray(errors[key]);\n\n        for (var i = 0; i < messages.length; i++) {\n          var title = 'Invalid Attribute';\n          var pointer = `/data/attributes/${key}`;\n\n          if (key === PRIMARY_ATTRIBUTE_KEY) {\n            title = 'Invalid Document';\n            pointer = `/data`;\n          }\n\n          out.push({\n            title: title,\n            detail: messages[i],\n            source: {\n              pointer: pointer\n            }\n          });\n        }\n      });\n    }\n\n    return out;\n  }\n  /**\n    Convert an array of errors in JSON-API format into an object.\n\n    ```javascript\n    import DS from 'ember-data';\n\n    const { errorsArrayToHash } = DS;\n\n    let errorsArray = [\n      {\n        title: 'Invalid Attribute',\n        detail: 'Must be present',\n        source: { pointer: '/data/attributes/name' }\n      },\n      {\n        title: 'Invalid Attribute',\n        detail: 'Must be present',\n        source: { pointer: '/data/attributes/age' }\n      },\n      {\n        title: 'Invalid Attribute',\n        detail: 'Must be a number',\n        source: { pointer: '/data/attributes/age' }\n      }\n    ];\n\n    let errors = errorsArrayToHash(errorsArray);\n    // {\n    //   \"name\": [\"Must be present\"],\n    //   \"age\":  [\"Must be present\", \"must be a number\"]\n    // }\n    ```\n\n    @method errorsArrayToHash\n    @public\n    @param {Array} errors array of errors in JSON-API format\n    @return {Object}\n  */\n\n  function errorsArrayToHash(errors) {\n    var out = {};\n\n    if (Ember.isPresent(errors)) {\n      errors.forEach(error => {\n        if (error.source && error.source.pointer) {\n          var key = error.source.pointer.match(SOURCE_POINTER_REGEXP);\n\n          if (key) {\n            key = key[2];\n          } else if (error.source.pointer.search(SOURCE_POINTER_PRIMARY_REGEXP) !== -1) {\n            key = PRIMARY_ATTRIBUTE_KEY;\n          }\n\n          if (key) {\n            out[key] = out[key] || [];\n            out[key].push(error.detail || error.title);\n          }\n        }\n      });\n    }\n\n    return out;\n  }\n\n  var RequestStateEnum;\n\n  (function (RequestStateEnum) {\n    RequestStateEnum[\"pending\"] = \"pending\";\n    RequestStateEnum[\"fulfilled\"] = \"fulfilled\";\n    RequestStateEnum[\"rejected\"] = \"rejected\";\n  })(RequestStateEnum || (RequestStateEnum = {}));\n\n  /*\n   * Returns the RecordData instance associated with a given\n   * Model or InternalModel.\n   *\n   * Intentionally \"loose\" to allow anything with an _internalModel\n   * property until InternalModel is eliminated.\n   *\n   * Intentionally not typed to `InternalModel` due to circular dependency\n   *  which that creates.\n   *\n   * Overtime, this should shift to a \"weakmap\" based lookup in the\n   *  \"Ember.getOwner(obj)\" style.\n   */\n  function recordDataFor(instance) {\n    var internalModel = instance._internalModel || instance.internalModel || instance;\n    return internalModel._recordData || null;\n  }\n\n  /**\n    @module @ember-data/store\n  */\n\n  function relationshipsFor(instance) {\n    var i = instance; // TODO this cast is not safe but it is the assumption of the current\n    // state of the code. We need to update this class to handle CUSTOM_MODEL_CLASS\n    // requirements.\n\n    var recordData = i._internalModel._recordData;\n    return recordData._relationships;\n  }\n\n  function relationshipStateFor(instance, propertyName) {\n    return relationshipsFor(instance).get(propertyName);\n  }\n\n  /**\n    @class Snapshot\n    @private\n    @constructor\n    @param {Model} internalModel The model to create a snapshot from\n  */\n  class Snapshot {\n    constructor(options, identifier, _store) {\n      this._store = _store;\n      this.__attributes = null;\n      this._belongsToRelationships = Object.create(null);\n      this._belongsToIds = Object.create(null);\n      this._hasManyRelationships = Object.create(null);\n      this._hasManyIds = Object.create(null);\n      this._internalModel = void 0;\n      this._changedAttributes = void 0;\n      this.identifier = void 0;\n      this.modelName = void 0;\n      this.id = void 0;\n      this.include = void 0;\n      this.adapterOptions = void 0;\n\n      var internalModel = this._internalModel = _store._internalModelForResource(identifier);\n\n      this.modelName = identifier.type;\n      /*\n        If the internalModel does not yet have a record, then we are\n        likely a snapshot being provided to a find request, so we\n        populate __attributes lazily. Else, to preserve the \"moment\n        in time\" in which a snapshot is created, we greedily grab\n        the values.\n       */\n\n\n      if (internalModel.hasRecord) {\n        this._attributes;\n      }\n      /**\n       The id of the snapshot's underlying record\n        Example\n        ```javascript\n       // store.push('post', { id: 1, author: 'Tomster', title: 'Ember.js rocks' });\n       postSnapshot.id; // => '1'\n       ```\n        @property id\n       @type {String}\n       */\n\n\n      this.id = identifier.id;\n      /**\n       A hash of adapter options\n       @property adapterOptions\n       @type {Object}\n       */\n\n      this.adapterOptions = options.adapterOptions;\n      this.include = options.include;\n      /**\n       The name of the type of the underlying record for this snapshot, as a string.\n        @property modelName\n       @type {String}\n       */\n\n      this.modelName = internalModel.modelName;\n\n      if (internalModel.hasRecord) {\n        this._changedAttributes = recordDataFor(internalModel).changedAttributes();\n      }\n    }\n    /**\n     The underlying record for this snapshot. Can be used to access methods and\n     properties defined on the record.\n      Example\n      ```javascript\n     let json = snapshot.record.toJSON();\n     ```\n      @property record\n     @type {Model}\n     */\n\n\n    get record() {\n      return this._internalModel.getRecord();\n    }\n\n    get _attributes() {\n      if (this.__attributes !== null) {\n        return this.__attributes;\n      }\n\n      var record = this.record;\n      var attributes = this.__attributes = Object.create(null);\n      var attrs;\n\n      {\n        attrs = Object.keys(this._store._attributesDefinitionFor(this.modelName));\n      }\n\n      {\n        // When CUSTOM_MODEL_CLASS is false `record` must be DSModel\n        record.eachAttribute(keyName => attributes[keyName] = Ember.get(record, keyName));\n      }\n\n      return attributes;\n    }\n    /**\n     The type of the underlying record for this snapshot, as a Model.\n      @property type\n     @type {Model}\n     */\n\n\n    get type() {\n      return this._internalModel.modelClass;\n    }\n\n    get isNew() {\n      {\n        throw new Error('isNew is only available when custom model class ff is on');\n      }\n    }\n    /**\n     Returns the value of an attribute.\n      Example\n      ```javascript\n     // store.push('post', { id: 1, author: 'Tomster', title: 'Ember.js rocks' });\n     postSnapshot.attr('author'); // => 'Tomster'\n     postSnapshot.attr('title'); // => 'Ember.js rocks'\n     ```\n      Note: Values are loaded eagerly and cached when the snapshot is created.\n      @method attr\n     @param {String} keyName\n     @return {Object} The attribute value or undefined\n     */\n\n\n    attr(keyName) {\n      if (keyName in this._attributes) {\n        return this._attributes[keyName];\n      }\n\n      ( Ember.assert(`Model '${this.identifier}' has no attribute named '${keyName}' defined.`, false));\n    }\n    /**\n     Returns all attributes and their corresponding values.\n      Example\n      ```javascript\n     // store.push('post', { id: 1, author: 'Tomster', title: 'Ember.js rocks' });\n     postSnapshot.attributes(); // => { author: 'Tomster', title: 'Ember.js rocks' }\n     ```\n      @method attributes\n     @return {Object} All attributes of the current snapshot\n     */\n\n\n    attributes() {\n      return Ember.assign({}, this._attributes);\n    }\n    /**\n     Returns all changed attributes and their old and new values.\n      Example\n      ```javascript\n     // store.push('post', { id: 1, author: 'Tomster', title: 'Ember.js rocks' });\n     postModel.set('title', 'Ember.js rocks!');\n     postSnapshot.changedAttributes(); // => { title: ['Ember.js rocks', 'Ember.js rocks!'] }\n     ```\n      @method changedAttributes\n     @return {Object} All changed attributes of the current snapshot\n     */\n\n\n    changedAttributes() {\n      var changedAttributes = Object.create(null);\n\n      if (!this._changedAttributes) {\n        return changedAttributes;\n      }\n\n      var changedAttributeKeys = Object.keys(this._changedAttributes);\n\n      for (var i = 0, length = changedAttributeKeys.length; i < length; i++) {\n        var _key = changedAttributeKeys[i];\n        changedAttributes[_key] = this._changedAttributes[_key].slice();\n      }\n\n      return changedAttributes;\n    }\n    /**\n     Returns the current value of a belongsTo relationship.\n      `belongsTo` takes an optional hash of options as a second parameter,\n     currently supported options are:\n      - `id`: set to `true` if you only want the ID of the related record to be\n     returned.\n      Example\n      ```javascript\n     // store.push('post', { id: 1, title: 'Hello World' });\n     // store.createRecord('comment', { body: 'Lorem ipsum', post: post });\n     commentSnapshot.belongsTo('post'); // => Snapshot\n     commentSnapshot.belongsTo('post', { id: true }); // => '1'\n      // store.push('comment', { id: 1, body: 'Lorem ipsum' });\n     commentSnapshot.belongsTo('post'); // => undefined\n     ```\n      Calling `belongsTo` will return a new Snapshot as long as there's any known\n     data for the relationship available, such as an ID. If the relationship is\n     known but unset, `belongsTo` will return `null`. If the contents of the\n     relationship is unknown `belongsTo` will return `undefined`.\n      Note: Relationships are loaded lazily and cached upon first access.\n      @method belongsTo\n     @param {String} keyName\n     @param {Object} [options]\n     @return {(Snapshot|String|null|undefined)} A snapshot or ID of a known\n     relationship or null if the relationship is known but unset. undefined\n     will be returned if the contents of the relationship is unknown.\n     */\n\n\n    belongsTo(keyName, options) {\n      var returnModeIsId = !!(options && options.id);\n      var relationship;\n      var inverseInternalModel;\n      var result;\n      var store = this._internalModel.store;\n\n      if (returnModeIsId === true && keyName in this._belongsToIds) {\n        return this._belongsToIds[keyName];\n      }\n\n      if (returnModeIsId === false && keyName in this._belongsToRelationships) {\n        return this._belongsToRelationships[keyName];\n      }\n\n      var relationshipMeta = store._relationshipMetaFor(this.modelName, null, keyName);\n\n      ( !(relationshipMeta && relationshipMeta.kind === 'belongsTo') && Ember.assert(`Model '${this.identifier}' has no belongsTo relationship named '${keyName}' defined.`, relationshipMeta && relationshipMeta.kind === 'belongsTo')); // TODO @runspired it seems this code branch would not work with CUSTOM_MODEL_CLASSes\n      // TODO @runspired instead of casting here either generify relationship state or\n      // provide a mechanism on relationship state by which to narrow.\n\n      relationship = relationshipStateFor(this, keyName);\n      var value = relationship.getData();\n      var data = value && value.data;\n      inverseInternalModel = data ? store._internalModelForResource(data) : null;\n\n      if (value && value.data !== undefined) {\n        if (inverseInternalModel && !inverseInternalModel.isDeleted()) {\n          if (returnModeIsId) {\n            result = inverseInternalModel.id;\n          } else {\n            result = inverseInternalModel.createSnapshot();\n          }\n        } else {\n          result = null;\n        }\n      }\n\n      if (returnModeIsId) {\n        this._belongsToIds[keyName] = result;\n      } else {\n        this._belongsToRelationships[keyName] = result;\n      }\n\n      return result;\n    }\n    /**\n     Returns the current value of a hasMany relationship.\n      `hasMany` takes an optional hash of options as a second parameter,\n     currently supported options are:\n      - `ids`: set to `true` if you only want the IDs of the related records to be\n     returned.\n      Example\n      ```javascript\n     // store.push('post', { id: 1, title: 'Hello World', comments: [2, 3] });\n     postSnapshot.hasMany('comments'); // => [Snapshot, Snapshot]\n     postSnapshot.hasMany('comments', { ids: true }); // => ['2', '3']\n      // store.push('post', { id: 1, title: 'Hello World' });\n     postSnapshot.hasMany('comments'); // => undefined\n     ```\n      Note: Relationships are loaded lazily and cached upon first access.\n      @method hasMany\n     @param {String} keyName\n     @param {Object} [options]\n     @return {(Array|undefined)} An array of snapshots or IDs of a known\n     relationship or an empty array if the relationship is known but unset.\n     undefined will be returned if the contents of the relationship is unknown.\n     */\n\n\n    hasMany(keyName, options) {\n      var returnModeIsIds = !!(options && options.ids);\n      var relationship;\n      var results;\n      var cachedIds = this._hasManyIds[keyName];\n      var cachedSnapshots = this._hasManyRelationships[keyName];\n\n      if (returnModeIsIds === true && keyName in this._hasManyIds) {\n        return cachedIds;\n      }\n\n      if (returnModeIsIds === false && keyName in this._hasManyRelationships) {\n        return cachedSnapshots;\n      }\n\n      var store = this._internalModel.store;\n\n      var relationshipMeta = store._relationshipMetaFor(this.modelName, null, keyName);\n\n      ( !(relationshipMeta && relationshipMeta.kind === 'hasMany') && Ember.assert(`Model '${this.identifier}' has no hasMany relationship named '${keyName}' defined.`, relationshipMeta && relationshipMeta.kind === 'hasMany')); // TODO @runspired it seems this code branch would not work with CUSTOM_MODEL_CLASSes\n      // TODO @runspired instead of casting here either generify relationship state or\n      // provide a mechanism on relationship state by which to narrow.\n\n      relationship = relationshipStateFor(this, keyName);\n      var value = relationship.getData();\n\n      if (value.data) {\n        results = [];\n        value.data.forEach(member => {\n          var internalModel = store._internalModelForResource(member);\n\n          if (!internalModel.isDeleted()) {\n            if (returnModeIsIds) {\n              results.push(member.id);\n            } else {\n              results.push(internalModel.createSnapshot());\n            }\n          }\n        });\n      } // we assign even if `undefined` so that we don't reprocess the relationship\n      // on next access. This works with the `keyName in` checks above.\n\n\n      if (returnModeIsIds) {\n        this._hasManyIds[keyName] = results;\n      } else {\n        this._hasManyRelationships[keyName] = results;\n      }\n\n      return results;\n    }\n    /**\n      Iterates through all the attributes of the model, calling the passed\n      function on each attribute.\n       Example\n       ```javascript\n      snapshot.eachAttribute(function(name, meta) {\n        // ...\n      });\n      ```\n       @method eachAttribute\n      @param {Function} callback the callback to execute\n      @param {Object} [binding] the value to which the callback's `this` should be bound\n    */\n\n\n    eachAttribute(callback, binding) {\n      {\n        // in the non CUSTOM_MODEL_CLASS world we only have DSModel instances\n        this.record.eachAttribute(callback, binding);\n      }\n    }\n    /**\n      Iterates through all the relationships of the model, calling the passed\n      function on each relationship.\n       Example\n       ```javascript\n      snapshot.eachRelationship(function(name, relationship) {\n        // ...\n      });\n      ```\n       @method eachRelationship\n      @param {Function} callback the callback to execute\n      @param {Object} [binding] the value to which the callback's `this` should be bound\n    */\n\n\n    eachRelationship(callback, binding) {\n      {\n        // in the non CUSTOM_MODEL_CLASS world we only have DSModel instances\n        this.record.eachRelationship(callback, binding);\n      }\n    }\n    /**\n      Serializes the snapshot using the serializer for the model.\n       Example\n       ```app/adapters/application.js\n      import Adapter from '@ember-data/adapter';\n       export default Adapter.extend({\n        createRecord(store, type, snapshot) {\n          var data = snapshot.serialize({ includeId: true });\n          var url = `/${type.modelName}`;\n           return fetch(url, {\n            method: 'POST',\n            body: data,\n          }).then((response) => response.json())\n        }\n      });\n      ```\n       @method serialize\n      @param {Object} options\n      @return {Object} an object whose values are primitive JSON values only\n     */\n\n\n    serialize(options) {\n      return this._store.serializerFor(this.modelName).serialize(this, options);\n    }\n\n  }\n\n  /**\n    @module @ember-data/store\n  */\n  function _bind(fn, ...args) {\n    return function () {\n      return fn.apply(undefined, args);\n    };\n  }\n  function _guard(promise, test) {\n    var guarded = promise.finally(() => {\n      if (!test()) {\n        guarded._subscribers.length = 0;\n      }\n    });\n    return guarded;\n  }\n  function _objectIsAlive(object) {\n    return !(Ember.get(object, 'isDestroyed') || Ember.get(object, 'isDestroying'));\n  }\n  function guardDestroyedStore(promise, store, label) {\n    var token;\n\n    {\n      token = store._trackAsyncRequestStart(label);\n    }\n\n    var wrapperPromise = Ember.RSVP.resolve(promise, label).then(v => promise);\n    return _guard(wrapperPromise, () => {\n      {\n        store._trackAsyncRequestEnd(token);\n      }\n\n      return _objectIsAlive(store);\n    });\n  }\n\n  /**\n    @module @ember-data/store\n  */\n\n  /*\n    This is a helper method that validates a JSON API top-level document\n\n    The format of a document is described here:\n    http://jsonapi.org/format/#document-top-level\n\n    @method validateDocumentStructure\n    @param {Object} doc JSON API document\n    @return {array} An array of errors found in the document structure\n  */\n  function validateDocumentStructure(doc) {\n    var errors = [];\n\n    if (!doc || typeof doc !== 'object') {\n      errors.push('Top level of a JSON API document must be an object');\n    } else {\n      if (!('data' in doc) && !('errors' in doc) && !('meta' in doc)) {\n        errors.push('One or more of the following keys must be present: \"data\", \"errors\", \"meta\".');\n      } else {\n        if ('data' in doc && 'errors' in doc) {\n          errors.push('Top level keys \"errors\" and \"data\" cannot both be present in a JSON API document');\n        }\n      }\n\n      if ('data' in doc) {\n        if (!(doc.data === null || Array.isArray(doc.data) || typeof doc.data === 'object')) {\n          errors.push('data must be null, an object, or an array');\n        }\n      }\n\n      if ('meta' in doc) {\n        if (typeof doc.meta !== 'object') {\n          errors.push('meta must be an object');\n        }\n      }\n\n      if ('errors' in doc) {\n        if (!Array.isArray(doc.errors)) {\n          errors.push('errors must be an array');\n        }\n      }\n\n      if ('links' in doc) {\n        if (typeof doc.links !== 'object') {\n          errors.push('links must be an object');\n        }\n      }\n\n      if ('jsonapi' in doc) {\n        if (typeof doc.jsonapi !== 'object') {\n          errors.push('jsonapi must be an object');\n        }\n      }\n\n      if ('included' in doc) {\n        if (typeof doc.included !== 'object') {\n          errors.push('included must be an array');\n        }\n      }\n    }\n\n    return errors;\n  }\n  /*\n    This is a helper method that always returns a JSON-API Document.\n\n    @method normalizeResponseHelper\n    @param {Serializer} serializer\n    @param {Store} store\n    @param {subclass of Model} modelClass\n    @param {Object} payload\n    @param {String|Number} id\n    @param {String} requestType\n    @return {Object} JSON-API Document\n  */\n\n  function normalizeResponseHelper(serializer, store, modelClass, payload, id, requestType) {\n    var normalizedResponse = serializer.normalizeResponse(store, modelClass, payload, id, requestType);\n    var validationErrors = [];\n\n    {\n      validationErrors = validateDocumentStructure(normalizedResponse);\n    }\n\n    ( !(validationErrors.length === 0) && Ember.assert(`normalizeResponse must return a valid JSON API document:\\n\\t* ${validationErrors.join('\\n\\t* ')}`, validationErrors.length === 0));\n    return normalizedResponse;\n  }\n\n  // TODO @runspired symbol shouldn't be in ts-interfaces\n\n  var emberRun = Ember.run.backburner;\n\n  /**\n    @module @ember-data/store\n  */\n\n  /**\n   `InternalModelMap` is a custom storage map for internalModels of a given modelName\n   used by `IdentityMap`.\n\n   It was extracted from an implicit pojo based \"internalModel map\" and preserves\n   that interface while we work towards a more official API.\n\n   @class InternalModelMap\n   @private\n   */\n  class InternalModelMap {\n    constructor(modelName) {\n      this.modelName = modelName;\n      this._idToModel = Object.create(null);\n      this._models = [];\n      this._metadata = null;\n    }\n    /**\n     * @method get\n     * @param id {String}\n     * @return {InternalModel}\n     */\n\n\n    get(id) {\n      return this._idToModel[id] || null;\n    }\n\n    has(id) {\n      return !!this._idToModel[id];\n    }\n\n    get length() {\n      return this._models.length;\n    }\n\n    set(id, internalModel) {\n      ( !(typeof id === 'string' && id.length > 0) && Ember.assert(`You cannot index an internalModel by an empty id'`, typeof id === 'string' && id.length > 0));\n      ( !(internalModel instanceof InternalModel) && Ember.assert(`You cannot set an index for an internalModel to something other than an internalModel`, internalModel instanceof InternalModel));\n      ( !(this.contains(internalModel)) && Ember.assert(`You cannot set an index for an internalModel that is not in the InternalModelMap`, this.contains(internalModel)));\n      ( !(!this.has(id) || this.get(id) === internalModel) && Ember.assert(`You cannot update the id index of an InternalModel once set. Attempted to update ${id}.`, !this.has(id) || this.get(id) === internalModel));\n      this._idToModel[id] = internalModel;\n    }\n\n    add(internalModel, id) {\n      ( !(!this.contains(internalModel)) && Ember.assert(`You cannot re-add an already present InternalModel to the InternalModelMap.`, !this.contains(internalModel)));\n\n      if (id) {\n        ( !(!this.has(id) || this.get(id) === internalModel) && Ember.assert(`Duplicate InternalModel for ${this.modelName}:${id} detected.`, !this.has(id) || this.get(id) === internalModel));\n        this._idToModel[id] = internalModel;\n      }\n\n      this._models.push(internalModel);\n    }\n\n    remove(internalModel, id) {\n      delete this._idToModel[id];\n\n      var loc = this._models.indexOf(internalModel);\n\n      if (loc !== -1) {\n        this._models.splice(loc, 1);\n      }\n    }\n\n    contains(internalModel) {\n      return this._models.indexOf(internalModel) !== -1;\n    }\n    /**\n     An array of all models of this modelName\n     @property models\n     @type Array\n     */\n\n\n    get models() {\n      return this._models;\n    }\n    /**\n     * meta information about internalModels\n     * @property metadata\n     * @type Object\n     */\n\n\n    get metadata() {\n      return this._metadata || (this._metadata = Object.create(null));\n    }\n    /**\n     Destroy all models in the internalModelTest and wipe metadata.\n      @method clear\n     */\n\n\n    clear() {\n      var internalModels = this._models;\n      this._models = [];\n\n      for (var i = 0; i < internalModels.length; i++) {\n        var internalModel = internalModels[i];\n        internalModel.unloadRecord();\n      }\n\n      this._metadata = null;\n    }\n\n  }\n\n  /**\n    @module @ember-data/store\n  */\n\n  /**\n   `IdentityMap` is a custom storage map for records by modelName\n   used by `Store`.\n\n   @class IdentityMap\n   @private\n   */\n  class IdentityMap {\n    constructor() {\n      this._map = Object.create(null);\n    }\n\n    /**\n     Retrieves the `InternalModelMap` for a given modelName,\n     creating one if one did not already exist. This is\n     similar to `getWithDefault` or `get` on a `MapWithDefault`\n      @method retrieve\n     @param modelName a previously normalized modelName\n     @return {InternalModelMap} the InternalModelMap for the given modelName\n     */\n    retrieve(modelName) {\n      var map = this._map[modelName];\n\n      if (map === undefined) {\n        map = this._map[modelName] = new InternalModelMap(modelName);\n      }\n\n      return map;\n    }\n    /**\n     Clears the contents of all known `RecordMaps`, but does\n     not remove the InternalModelMap instances.\n      @method clear\n     */\n\n\n    clear() {\n      var map = this._map;\n      var keys = Object.keys(map);\n\n      for (var i = 0; i < keys.length; i++) {\n        var key = keys[i];\n        map[key].clear();\n      }\n    }\n\n  }\n\n  /**\n    @module @ember-data/store\n  */\n  var FactoryCache = new WeakMap();\n  var RecordCache = new WeakMap();\n  function peekRecordIdentifier(record) {\n    return RecordCache.get(record);\n  }\n  function recordIdentifierFor(record) {\n    var identifier = RecordCache.get(record);\n\n    if ( identifier === undefined) {\n      throw new Error(`${record} is not a record instantiated by @ember-data/store`);\n    }\n\n    return identifier;\n  }\n  function setRecordIdentifier(record, identifier) {\n    if ( RecordCache.has(record)) {\n      throw new Error(`${record} was already assigned an identifier`);\n    }\n    /*\n    It would be nice to do a reverse check here that an identifier has not\n    previously been assigned a record; however, unload + rematerialization\n    prevents us from having a great way of doing so when CustomRecordClasses\n    don't necessarily give us access to a `isDestroyed` for dematerialized\n    instance.\n    */\n\n\n    RecordCache.set(record, identifier);\n  }\n  function internalModelFactoryFor(store) {\n    var factory = FactoryCache.get(store);\n\n    if (factory === undefined) {\n      factory = new InternalModelFactory(store);\n      FactoryCache.set(store, factory);\n    }\n\n    return factory;\n  }\n  /**\n   * The InternalModelFactory handles the lifecyle of\n   * instantiating, caching, and destroying InternalModel\n   * instances.\n   *\n   * @internal\n   */\n\n  class InternalModelFactory {\n    constructor(store) {\n      this.store = store;\n      this._identityMap = void 0;\n      this._newlyCreated = void 0;\n      this.identifierCache = void 0;\n      this.identifierCache = identifierCacheFor(store);\n\n      this.identifierCache.__configureMerge((identifier, matchedIdentifier, resourceData) => {\n        var intendedIdentifier = identifier.id === resourceData.id ? identifier : matchedIdentifier;\n        var altIdentifier = identifier.id === resourceData.id ? matchedIdentifier : identifier; // check for duplicate InternalModel's\n\n        var map = this.modelMapFor(identifier.type);\n        var im = map.get(intendedIdentifier.lid);\n        var otherIm = map.get(altIdentifier.lid); // we cannot merge internalModels when both have records\n        // (this may not be strictly true, we could probably swap the internalModel the record points at)\n\n        if (im && otherIm && im.hasRecord && otherIm.hasRecord) {\n          throw new Error(`Failed to update the 'id' for the RecordIdentifier '${identifier}' to '${resourceData.id}', because that id is already in use by '${matchedIdentifier}'`);\n        } // remove otherIm from cache\n\n\n        if (otherIm) {\n          map.remove(otherIm, altIdentifier.lid);\n        }\n\n        if (im === null && otherIm === null) {\n          // nothing more to do\n          return intendedIdentifier; // only the other has an InternalModel\n          // OR only the other has a Record\n        } else if (im === null && otherIm !== null || im && !im.hasRecord && otherIm && otherIm.hasRecord) {\n          if (im) {\n            // TODO check if we are retained in any async relationships\n            map.remove(im, intendedIdentifier.lid); // im.destroy();\n          }\n\n          im = otherIm; // TODO do we need to notify the id change?\n\n          im._id = intendedIdentifier.id;\n          map.add(im, intendedIdentifier.lid); // just use im\n        }\n\n        return intendedIdentifier;\n      });\n\n      this._identityMap = new IdentityMap();\n    }\n    /**\n     * Retrieve the InternalModel for a given { type, id, lid }.\n     *\n     * If an InternalModel does not exist, it instantiates one.\n     *\n     * If an InternalModel does exist bus has a scheduled destroy,\n     *   the scheduled destroy will be cancelled.\n     *\n     * @internal\n     */\n\n\n    lookup(resource, data) {\n      if (data !== undefined) {\n        // if we've been given data associated with this lookup\n        // we must first give secondary-caches for LIDs the\n        // opportunity to populate based on it\n        this.identifierCache.getOrCreateRecordIdentifier(data);\n      }\n\n      var identifier = this.identifierCache.getOrCreateRecordIdentifier(resource);\n      var internalModel = this.peek(identifier);\n\n      if (internalModel) {\n        // unloadRecord is async, if one attempts to unload + then sync push,\n        //   we must ensure the unload is canceled before continuing\n        //   The createRecord path will take _existingInternalModelForId()\n        //   which will call `destroySync` instead for this unload + then\n        //   sync createRecord scenario. Once we have true client-side\n        //   delete signaling, we should never call destroySync\n        if (internalModel.hasScheduledDestroy()) {\n          internalModel.cancelDestroy();\n        }\n\n        return internalModel;\n      }\n\n      return this._build(identifier, false);\n    }\n    /**\n     * Peek the InternalModel for a given { type, id, lid }.\n     *\n     * If an InternalModel does not exist, return `null`.\n     *\n     * @internal\n     */\n\n\n    peek(identifier) {\n      return this.modelMapFor(identifier.type).get(identifier.lid);\n    }\n\n    getByResource(resource) {\n      var normalizedResource = constructResource(resource.type, resource.id, resource.lid);\n      return this.lookup(normalizedResource);\n    }\n\n    setRecordId(type, id, lid) {\n      var resource = {\n        type,\n        id: null,\n        lid\n      };\n      var identifier = this.identifierCache.getOrCreateRecordIdentifier(resource);\n      var internalModel = this.peek(identifier);\n\n      if (internalModel === null) {\n        throw new Error(`Cannot set the id ${id} on the record ${type}:${lid} as there is no such record in the cache.`);\n      }\n\n      var oldId = internalModel.id;\n      var modelName = internalModel.modelName; // ID absolutely can't be missing if the oldID is empty (missing Id in response for a new record)\n\n      ( !(!(id === null && oldId === null)) && Ember.assert(`'${modelName}' was saved to the server, but the response does not have an id and your record does not either.`, !(id === null && oldId === null))); // ID absolutely can't be different than oldID if oldID is not null\n      // TODO this assertion and restriction may not strictly be needed in the identifiers world\n\n      ( !(!(oldId !== null && id !== oldId)) && Ember.assert(`Cannot update the id for '${modelName}:${lid}' from '${oldId}' to '${id}'.`, !(oldId !== null && id !== oldId))); // ID can be null if oldID is not null (altered ID in response for a record)\n      // however, this is more than likely a developer error.\n\n      if (oldId !== null && id === null) {\n        ( Ember.warn(`Your ${modelName} record was saved to the server, but the response does not have an id.`, !(oldId !== null && id === null)));\n        return;\n      }\n\n      var existingInternalModel = this.peekById(modelName, id);\n      ( !(Ember.isNone(existingInternalModel) || existingInternalModel === internalModel) && Ember.assert(`'${modelName}' was saved to the server, but the response returned the new id '${id}', which has already been used with another record.'`, Ember.isNone(existingInternalModel) || existingInternalModel === internalModel));\n\n      if (identifier.id === null) {\n        this.identifierCache.updateRecordIdentifier(identifier, {\n          type,\n          id\n        });\n      }\n\n      internalModel.setId(id);\n    }\n\n    peekById(type, id) {\n      var identifier = this.identifierCache.peekRecordIdentifier({\n        type,\n        id\n      });\n      var internalModel = identifier ? this.modelMapFor(type).get(identifier.lid) : null;\n\n      if (internalModel && internalModel.hasScheduledDestroy()) {\n        // unloadRecord is async, if one attempts to unload + then sync create,\n        //   we must ensure the unload is complete before starting the create\n        //   The push path will take this.lookup()\n        //   which will call `cancelDestroy` instead for this unload + then\n        //   sync push scenario. Once we have true client-side\n        //   delete signaling, we should never call destroySync\n        internalModel.destroySync();\n        internalModel = null;\n      }\n\n      return internalModel;\n    }\n\n    build(newResourceInfo) {\n      return this._build(newResourceInfo, true);\n    }\n\n    _build(resource, isCreate = false) {\n      if (isCreate === true && resource.id) {\n        var existingInternalModel = this.peekById(resource.type, resource.id);\n        ( !(!existingInternalModel) && Ember.assert(`The id ${resource.id} has already been used with another '${resource.type}' record.`, !existingInternalModel));\n      }\n\n      var {\n        identifierCache\n      } = this;\n      var identifier;\n\n      if (isCreate === true) {\n        identifier = identifierCache.createIdentifierForNewRecord(resource);\n      } else {\n        identifier = resource;\n      } // lookupFactory should really return an object that creates\n      // instances with the injections applied\n\n\n      var internalModel = new InternalModel(this.store, identifier);\n      this.modelMapFor(resource.type).add(internalModel, identifier.lid);\n      return internalModel;\n    }\n\n    remove(internalModel) {\n      var recordMap = this.modelMapFor(internalModel.modelName);\n      var clientId = internalModel.identifier.lid;\n      recordMap.remove(internalModel, clientId);\n      var {\n        identifier\n      } = internalModel;\n      this.identifierCache.forgetRecordIdentifier(identifier);\n    }\n\n    modelMapFor(type) {\n      return this._identityMap.retrieve(type);\n    }\n\n    _newlyCreatedModelsFor(type) {\n      return this._newlyCreated.retrieve(type);\n    }\n\n    clear(type) {\n      if (type === undefined) {\n        this._identityMap.clear();\n      } else {\n        this.modelMapFor(type).clear();\n      }\n    }\n\n  }\n\n  function isResourceIdentiferWithRelatedLinks(value) {\n    return value && value.links && value.links.related;\n  }\n  /**\n    This is the baseClass for the different References\n    like RecordReference/HasManyReference/BelongsToReference\n\n   @class Reference\n   */\n\n\n  class Reference {\n    constructor(store, internalModel) {\n      this.store = store;\n      this.internalModel = internalModel;\n      this.recordData = void 0;\n      this.recordData = recordDataFor(this);\n    }\n\n    _resource() {}\n    /**\n     This returns a string that represents how the reference will be\n     looked up when it is loaded. If the relationship has a link it will\n     use the \"link\" otherwise it defaults to \"id\".\n      Example\n      ```app/models/post.js\n     import Model, { hasMany } from '@ember-data/model';\n      export default Model.extend({\n       comments: hasMany({ async: true })\n     });\n     ```\n      ```javascript\n     let post = store.push({\n       data: {\n         type: 'post',\n         id: 1,\n         relationships: {\n           comments: {\n             data: [{ type: 'comment', id: 1 }]\n           }\n         }\n       }\n     });\n      let commentsRef = post.hasMany('comments');\n      // get the identifier of the reference\n     if (commentsRef.remoteType() === \"ids\") {\n       let ids = commentsRef.ids();\n     } else if (commentsRef.remoteType() === \"link\") {\n       let link = commentsRef.link();\n     }\n     ```\n      @method remoteType\n     @return {String} The name of the remote type. This should either be \"link\" or \"ids\"\n     */\n\n\n    remoteType() {\n      var value = this._resource();\n\n      if (isResourceIdentiferWithRelatedLinks(value)) {\n        return 'link';\n      }\n\n      return 'id';\n    }\n    /**\n     The link Ember Data will use to fetch or reload this belongs-to\n     relationship.\n      Example\n      ```javascript\n     // models/blog.js\n     import Model, { belongsTo } from '@ember-data/model';\n     export default Model.extend({\n        user: belongsTo({ async: true })\n      });\n      let blog = store.push({\n        data: {\n          type: 'blog',\n          id: 1,\n          relationships: {\n            user: {\n              links: {\n                related: '/articles/1/author'\n              }\n            }\n          }\n        }\n      });\n     let userRef = blog.belongsTo('user');\n      // get the identifier of the reference\n     if (userRef.remoteType() === \"link\") {\n        let link = userRef.link();\n      }\n     ```\n      @method link\n     @return {String} The link Ember Data will use to fetch or reload this belongs-to relationship.\n     */\n\n\n    link() {\n      var link;\n\n      var resource = this._resource();\n\n      if (isResourceIdentiferWithRelatedLinks(resource)) {\n        if (resource.links) {\n          link = resource.links.related;\n          link = !link || typeof link === 'string' ? link : link.href;\n        }\n      }\n\n      return link || null;\n    }\n    /**\n     The meta data for the belongs-to relationship.\n      Example\n      ```javascript\n     // models/blog.js\n     import Model, { belongsTo } from '@ember-data/model';\n     export default Model.extend({\n        user: belongsTo({ async: true })\n      });\n      let blog = store.push({\n        data: {\n          type: 'blog',\n          id: 1,\n          relationships: {\n            user: {\n              links: {\n                related: {\n                  href: '/articles/1/author'\n                },\n                meta: {\n                  lastUpdated: 1458014400000\n                }\n              }\n            }\n          }\n        }\n      });\n      let userRef = blog.belongsTo('user');\n      userRef.meta() // { lastUpdated: 1458014400000 }\n     ```\n      @method meta\n     @return {Object} The meta information for the belongs-to relationship.\n     */\n\n\n    meta() {\n      var meta = null;\n\n      var resource = this._resource();\n\n      if (resource && resource.meta && typeof resource.meta === 'object') {\n        meta = resource.meta;\n      }\n\n      return meta;\n    }\n\n  }\n\n  {\n    Reference.prototype.links = function links() {\n      var resource = this._resource();\n\n      return resource && resource.links ? resource.links : null;\n    };\n  }\n\n  /**\n    @module @ember-data/store\n  */\n\n  /**\n   A `BelongsToReference` is a low-level API that allows users and\n   addon authors to perform meta-operations on a belongs-to\n   relationship.\n\n   @class BelongsToReference\n   @extends Reference\n   */\n\n  class BelongsToReference extends Reference {\n    constructor(store, parentInternalModel, belongsToRelationship, key) {\n      super(store, parentInternalModel);\n      this.key = key;\n      this.belongsToRelationship = belongsToRelationship;\n      this.type = belongsToRelationship.relationshipMeta.type;\n      this.parent = parentInternalModel.recordReference;\n      this.parentInternalModel = parentInternalModel; // TODO inverse\n    }\n    /**\n     The `id` of the record that this reference refers to. Together, the\n     `type()` and `id()` methods form a composite key for the identity\n     map. This can be used to access the id of an async relationship\n     without triggering a fetch that would normally happen if you\n     attempted to use `record.get('relationship.id')`.\n      Example\n      ```javascript\n     // models/blog.js\n     export default Model.extend({\n        user: belongsTo({ async: true })\n      });\n      let blog = store.push({\n        data: {\n          type: 'blog',\n          id: 1,\n          relationships: {\n            user: {\n              data: { type: 'user', id: 1 }\n            }\n          }\n        }\n      });\n     let userRef = blog.belongsTo('user');\n      // get the identifier of the reference\n     if (userRef.remoteType() === \"id\") {\n        let id = userRef.id();\n      }\n     ```\n      @method id\n     @return {String} The id of the record in this belongsTo relationship.\n     */\n\n\n    id() {\n      var id = null;\n\n      var resource = this._resource();\n\n      if (resource && resource.data && resource.data.id) {\n        id = resource.data.id;\n      }\n\n      return id;\n    }\n\n    _resource() {\n      return this.recordData.getBelongsTo(this.key);\n    }\n    /**\n     `push` can be used to update the data in the relationship and Ember\n     Data will treat the new data as the conanical value of this\n     relationship on the backend.\n      Example\n      ```app/models/blog.js\n     import Model, { belongsTo } from '@ember-data/model';\n      export default Model.extend({\n        user: belongsTo({ async: true })\n      });\n      let blog = store.push({\n        data: {\n          type: 'blog',\n          id: 1,\n          relationships: {\n            user: {\n              data: { type: 'user', id: 1 }\n            }\n          }\n        }\n      });\n     let userRef = blog.belongsTo('user');\n      // provide data for reference\n     userRef.push({\n        data: {\n          type: 'user',\n          id: 1,\n          attributes: {\n            username: \"@user\"\n          }\n        }\n      }).then(function(user) {\n        userRef.value() === user;\n      });\n     ```\n      @method push\n     @param {Object|Promise} objectOrPromise a promise that resolves to a JSONAPI document object describing the new value of this relationship.\n     @return {Promise<record>} A promise that resolves with the new value in this belongs-to relationship.\n     */\n\n\n    push(objectOrPromise) {\n      // TODO deprecate thenable support\n      return Ember.RSVP.resolve(objectOrPromise).then(data => {\n        var record;\n\n        if ( peekRecordIdentifier(data)) {\n          ( Ember.deprecate('Pushing a record into a BelongsToReference is deprecated', false, {\n            id: 'ember-data:belongs-to-reference-push-record',\n            until: '4.0'\n          }));\n          record = data;\n        } else {\n          record = this.store.push(data);\n        }\n\n        Debug.assertPolymorphicType(this.internalModel, this.belongsToRelationship.relationshipMeta, record._internalModel, this.store); //TODO Igor cleanup, maybe move to relationship push\n\n        this.belongsToRelationship.setCanonicalRecordData(recordDataFor(record));\n        return record;\n      });\n    }\n    /**\n     `value()` synchronously returns the current value of the belongs-to\n     relationship. Unlike `record.get('relationshipName')`, calling\n     `value()` on a reference does not trigger a fetch if the async\n     relationship is not yet loaded. If the relationship is not loaded\n     it will always return `null`.\n      Example\n      ```javascript\n     // models/blog.js\n     import Model, { belongsTo } from '@ember-data/model';\n      export default Model.extend({\n        user: belongsTo({ async: true })\n      });\n      let blog = store.push({\n        data: {\n          type: 'blog',\n          id: 1,\n          relationships: {\n            user: {\n              data: { type: 'user', id: 1 }\n            }\n          }\n        }\n      });\n     let userRef = blog.belongsTo('user');\n      userRef.value(); // null\n      // provide data for reference\n     userRef.push({\n        data: {\n          type: 'user',\n          id: 1,\n          attributes: {\n            username: \"@user\"\n          }\n        }\n      }).then(function(user) {\n        userRef.value(); // user\n      });\n     ```\n      @method value\n     @return {Model} the record in this relationship\n     */\n\n\n    value() {\n      var store = this.parentInternalModel.store;\n\n      var resource = this._resource();\n\n      if (resource && resource.data) {\n        var inverseInternalModel = store._internalModelForResource(resource.data);\n\n        if (inverseInternalModel && inverseInternalModel.isLoaded()) {\n          return inverseInternalModel.getRecord();\n        }\n      }\n\n      return null;\n    }\n    /**\n     Loads a record in a belongs-to relationship if it is not already\n     loaded. If the relationship is already loaded this method does not\n     trigger a new load.\n      Example\n      ```javascript\n     // models/blog.js\n     import Model, { belongsTo } from '@ember-data/model';\n      export default Model.extend({\n        user: belongsTo({ async: true })\n      });\n      let blog = store.push({\n        data: {\n          type: 'blog',\n          id: 1,\n          relationships: {\n            user: {\n              data: { type: 'user', id: 1 }\n            }\n          }\n        }\n      });\n     let userRef = blog.belongsTo('user');\n      userRef.value(); // null\n      userRef.load().then(function(user) {\n        userRef.value() === user\n      });\n     ```\n      You may also pass in an options object whose properties will be\n     fed forward. This enables you to pass `adapterOptions` into the\n     request given to the adapter via the reference.\n      Example\n      ```javascript\n     userRef.load({ adapterOptions: { isPrivate: true } }).then(function(user) {\n       userRef.value() === user;\n     });\n     ```\n      ```app/adapters/user.js\n     export default ApplicationAdapter.extend({\n       findRecord(store, type, id, snapshot) {\n         // In the adapter you will have access to adapterOptions.\n         let adapterOptions = snapshot.adapterOptions;\n       }\n     });\n     ```\n      @method load\n     @param {Object} options the options to pass in.\n     @return {Promise} a promise that resolves with the record in this belongs-to relationship.\n     */\n\n\n    load(options) {\n      return this.parentInternalModel.getBelongsTo(this.key, options);\n    }\n    /**\n     Triggers a reload of the value in this relationship. If the\n     remoteType is `\"link\"` Ember Data will use the relationship link to\n     reload the relationship. Otherwise it will reload the record by its\n     id.\n      Example\n      ```javascript\n     // models/blog.js\n     import Model, { belongsTo } from '@ember-data/model';\n     export default Model.extend({\n        user: belongsTo({ async: true })\n      });\n      let blog = store.push({\n        data: {\n          type: 'blog',\n          id: 1,\n          relationships: {\n            user: {\n              data: { type: 'user', id: 1 }\n            }\n          }\n        }\n      });\n     let userRef = blog.belongsTo('user');\n      userRef.reload().then(function(user) {\n        userRef.value() === user\n      });\n     ```\n      You may also pass in an options object whose properties will be\n     fed forward. This enables you to pass `adapterOptions` into the\n     request given to the adapter via the reference. A full example\n     can be found in the `load` method.\n      Example\n      ```javascript\n     userRef.reload({ adapterOptions: { isPrivate: true } })\n     ```\n      @method reload\n     @param {Object} options the options to pass in.\n     @return {Promise} a promise that resolves with the record in this belongs-to relationship after the reload has completed.\n     */\n\n\n    reload(options) {\n      return this.parentInternalModel.reloadBelongsTo(this.key, options).then(internalModel => {\n        return this.value();\n      });\n    }\n\n  }\n\n  /**\n    @module @ember-data/store\n  */\n\n  /**\n   A `HasManyReference` is a low-level API that allows users and addon\n   authors to perform meta-operations on a has-many relationship.\n\n   @class HasManyReference\n   @extends Reference\n   */\n\n  class HasManyReference extends Reference {\n    constructor(store, parentInternalModel, hasManyRelationship, key) {\n      super(store, parentInternalModel);\n      this.key = key;\n      this.hasManyRelationship = hasManyRelationship;\n      this.type = hasManyRelationship.relationshipMeta.type;\n      this.parent = parentInternalModel.recordReference;\n      this.parentInternalModel = parentInternalModel; // TODO inverse\n    }\n\n    _resource() {\n      return this.recordData.getHasMany(this.key);\n    }\n    /**\n     This returns a string that represents how the reference will be\n     looked up when it is loaded. If the relationship has a link it will\n     use the \"link\" otherwise it defaults to \"id\".\n      Example\n      ```app/models/post.js\n     import Model, { hasMany } from '@ember-data/model';\n     export default Model.extend({\n       comments: hasMany({ async: true })\n     });\n     ```\n      ```javascript\n     let post = store.push({\n       data: {\n         type: 'post',\n         id: 1,\n         relationships: {\n           comments: {\n             data: [{ type: 'comment', id: 1 }]\n           }\n         }\n       }\n     });\n      let commentsRef = post.hasMany('comments');\n      // get the identifier of the reference\n     if (commentsRef.remoteType() === \"ids\") {\n       let ids = commentsRef.ids();\n     } else if (commentsRef.remoteType() === \"link\") {\n       let link = commentsRef.link();\n     }\n     ```\n      @method remoteType\n     @return {String} The name of the remote type. This should either be `link` or `ids`\n     */\n\n\n    remoteType() {\n      var value = this._resource();\n\n      if (value && value.links && value.links.related) {\n        return 'link';\n      }\n\n      return 'ids';\n    }\n    /**\n     `ids()` returns an array of the record IDs in this relationship.\n      Example\n      ```app/models/post.js\n     import Model, { hasMany } from '@ember-data/model';\n     export default Model.extend({\n       comments: hasMany({ async: true })\n     });\n     ```\n      ```javascript\n     let post = store.push({\n       data: {\n         type: 'post',\n         id: 1,\n         relationships: {\n           comments: {\n             data: [{ type: 'comment', id: 1 }]\n           }\n         }\n       }\n     });\n      let commentsRef = post.hasMany('comments');\n      commentsRef.ids(); // ['1']\n     ```\n      @method ids\n     @return {Array} The ids in this has-many relationship\n     */\n\n\n    ids() {\n      var resource = this._resource();\n\n      var ids = [];\n\n      if (resource.data) {\n        ids = resource.data.map(data => data.id);\n      }\n\n      return ids;\n    }\n    /**\n     `push` can be used to update the data in the relationship and Ember\n     Data will treat the new data as the canonical value of this\n     relationship on the backend.\n      Example\n      ```app/models/post.js\n     import Model, { hasMany } from '@ember-data/model';\n     export default Model.extend({\n       comments: hasMany({ async: true })\n     });\n     ```\n      ```\n     let post = store.push({\n       data: {\n         type: 'post',\n         id: 1,\n         relationships: {\n           comments: {\n             data: [{ type: 'comment', id: 1 }]\n           }\n         }\n       }\n     });\n      let commentsRef = post.hasMany('comments');\n      commentsRef.ids(); // ['1']\n      commentsRef.push([\n     [{ type: 'comment', id: 2 }],\n     [{ type: 'comment', id: 3 }],\n     ])\n      commentsRef.ids(); // ['2', '3']\n     ```\n      @method push\n     @param {Array|Promise} objectOrPromise a promise that resolves to a JSONAPI document object describing the new value of this relationship.\n     @return {ManyArray}\n     */\n\n\n    push(objectOrPromise) {\n      return Ember.RSVP.resolve(objectOrPromise).then(payload => {\n        var array = payload;\n\n        if (typeof payload === 'object' && payload.data) {\n          array = payload.data;\n        }\n\n        var internalModels = array.map(obj => {\n          var record = this.store.push(obj);\n\n          {\n            var relationshipMeta = this.hasManyRelationship.relationshipMeta;\n            Debug.assertPolymorphicType(this.internalModel, relationshipMeta, record._internalModel, this.store);\n          }\n\n          return recordDataFor(record);\n        });\n        this.hasManyRelationship.computeChanges(internalModels);\n        return this.internalModel.getHasMany(this.hasManyRelationship.key); // TODO IGOR it seems wrong that we were returning the many array here\n        //return this.hasManyRelationship.manyArray;\n      });\n    }\n\n    _isLoaded() {\n      var hasRelationshipDataProperty = this.hasManyRelationship.hasAnyRelationshipData;\n\n      if (!hasRelationshipDataProperty) {\n        return false;\n      }\n\n      var members = this.hasManyRelationship.members.toArray(); //TODO Igor cleanup\n\n      return members.every(recordData => {\n        var store = this.parentInternalModel.store;\n\n        var internalModel = store._internalModelForResource(recordData.getResourceIdentifier());\n\n        return internalModel.isLoaded() === true;\n      });\n    }\n    /**\n     `value()` synchronously returns the current value of the has-many\n     relationship. Unlike `record.get('relationshipName')`, calling\n     `value()` on a reference does not trigger a fetch if the async\n     relationship is not yet loaded. If the relationship is not loaded\n     it will always return `null`.\n      Example\n      ```app/models/post.js\n     import Model, { hasMany } from '@ember-data/model';\n     export default Model.extend({\n       comments: hasMany({ async: true })\n     });\n     ```\n      ```javascript\n     let post = store.push({\n       data: {\n         type: 'post',\n         id: 1,\n         relationships: {\n           comments: {\n             data: [{ type: 'comment', id: 1 }]\n           }\n         }\n       }\n     });\n      let commentsRef = post.hasMany('comments');\n      post.get('comments').then(function(comments) {\n       commentsRef.value() === comments\n     })\n     ```\n      @method value\n     @return {ManyArray}\n     */\n\n\n    value() {\n      if (this._isLoaded()) {\n        return this.internalModel.getManyArray(this.key);\n      }\n\n      return null;\n    }\n    /**\n     Loads the relationship if it is not already loaded.  If the\n     relationship is already loaded this method does not trigger a new\n     load. This causes a request to the specified\n     relationship link or reloads all items currently in the relationship.\n      Example\n      ```app/models/post.js\n     import Model, { hasMany } from '@ember-data/model';\n     export default Model.extend({\n       comments: hasMany({ async: true })\n     });\n     ```\n      ```javascript\n     let post = store.push({\n       data: {\n         type: 'post',\n         id: 1,\n         relationships: {\n           comments: {\n             data: [{ type: 'comment', id: 1 }]\n           }\n         }\n       }\n     });\n      let commentsRef = post.hasMany('comments');\n      commentsRef.load().then(function(comments) {\n       //...\n     });\n     ```\n      You may also pass in an options object whose properties will be\n     fed forward. This enables you to pass `adapterOptions` into the\n     request given to the adapter via the reference.\n      Example\n      ```javascript\n     commentsRef.load({ adapterOptions: { isPrivate: true } })\n       .then(function(comments) {\n         //...\n       });\n     ```\n      ```app/adapters/comment.js\n     export default ApplicationAdapter.extend({\n       findMany(store, type, id, snapshots) {\n         // In the adapter you will have access to adapterOptions.\n         let adapterOptions = snapshots[0].adapterOptions;\n       }\n     });\n     ```\n      @method load\n     @param {Object} options the options to pass in.\n     @return {Promise} a promise that resolves with the ManyArray in\n     this has-many relationship.\n     */\n\n\n    load(options) {\n      return this.internalModel.getHasMany(this.key, options);\n    }\n    /**\n     Reloads this has-many relationship. This causes a request to the specified\n     relationship link or reloads all items currently in the relationship.\n      Example\n      ```app/models/post.js\n     import Model, { hasMany } from '@ember-data/model';\n     export default Model.extend({\n       comments: hasMany({ async: true })\n     });\n     ```\n      ```javascript\n     let post = store.push({\n       data: {\n         type: 'post',\n         id: 1,\n         relationships: {\n           comments: {\n             data: [{ type: 'comment', id: 1 }]\n           }\n         }\n       }\n     });\n      let commentsRef = post.hasMany('comments');\n      commentsRef.reload().then(function(comments) {\n       //...\n     });\n     ```\n      You may also pass in an options object whose properties will be\n     fed forward. This enables you to pass `adapterOptions` into the\n     request given to the adapter via the reference. A full example\n     can be found in the `load` method.\n      Example\n      ```javascript\n     commentsRef.reload({ adapterOptions: { isPrivate: true } })\n     ```\n      @method reload\n     @param {Object} options the options to pass in.\n     @return {Promise} a promise that resolves with the ManyArray in this has-many relationship.\n     */\n\n\n    reload(options) {\n      return this.internalModel.reloadHasMany(this.key, options);\n    }\n\n  }\n\n  /**\n    @module @ember-data/store\n  */\n\n  /**\n     A `RecordReference` is a low-level API that allows users and\n     addon authors to perform meta-operations on a record.\n\n     @class RecordReference\n     @extends Reference\n  */\n  class RecordReference extends Reference {\n    constructor(...args) {\n      super(...args);\n      this.type = this.internalModel.modelName;\n    }\n\n    get _id() {\n      return this.internalModel.id;\n    }\n    /**\n       The `id` of the record that this reference refers to.\n        Together, the `type` and `id` properties form a composite key for\n       the identity map.\n        Example\n        ```javascript\n       let userRef = store.getReference('user', 1);\n        userRef.id(); // '1'\n       ```\n        @method id\n       @return {String} The id of the record.\n    */\n\n\n    id() {\n      return this._id;\n    }\n    /**\n       How the reference will be looked up when it is loaded. Currently\n       this always returns `identity` to signify that a record will be\n       loaded by its `type` and `id`.\n        Example\n        ```javascript\n       const userRef = store.getReference('user', 1);\n        userRef.remoteType(); // 'identity'\n       ```\n        @method remoteType\n       @return {String} 'identity'\n    */\n\n\n    remoteType() {\n      return 'identity';\n    }\n    /**\n      This API allows you to provide a reference with new data. The\n      simplest usage of this API is similar to `store.push`: you provide a\n      normalized hash of data and the object represented by the reference\n      will update.\n       If you pass a promise to `push`, Ember Data will not ask the adapter\n      for the data if another attempt to fetch it is made in the\n      interim. When the promise resolves, the underlying object is updated\n      with the new data, and the promise returned by *this function* is resolved\n      with that object.\n       For example, `recordReference.push(promise)` will be resolved with a\n      record.\n        Example\n        ```javascript\n       let userRef = store.getReference('user', 1);\n        // provide data for reference\n       userRef.push({\n         data: {\n           id: \"1\",\n           type: \"user\",\n           attributes: {\n             username: \"@user\"\n           }\n         }\n       }).then(function(user) {\n         userRef.value() === user;\n       });\n       ```\n       @method push\n      @param objectOrPromise a JSON:API ResourceDocument or a promise resolving to one\n      @return a promise for the value (record or relationship)\n    */\n\n\n    push(objectOrPromise) {\n      return Ember.RSVP.resolve(objectOrPromise).then(data => {\n        return this.store.push(data);\n      });\n    }\n    /**\n      If the entity referred to by the reference is already loaded, it is\n      present as `reference.value`. Otherwise the value returned by this function\n      is `null`.\n        Example\n        ```javascript\n       let userRef = store.getReference('user', 1);\n        userRef.value(); // user\n       ```\n        @method value\n       @return {Model} the record for this RecordReference\n    */\n\n\n    value() {\n      if (this.internalModel.hasRecord) {\n        return this.internalModel.getRecord();\n      }\n\n      return null;\n    }\n    /**\n       Triggers a fetch for the backing entity based on its `remoteType`\n       (see `remoteType` definitions per reference type).\n        Example\n        ```javascript\n       let userRef = store.getReference('user', 1);\n        // load user (via store.find)\n       userRef.load().then(...)\n       ```\n        @method load\n       @return {Promise<record>} the record for this RecordReference\n    */\n\n\n    load() {\n      if (this._id !== null) {\n        return this.store.findRecord(this.type, this._id);\n      }\n\n      throw new Error(`Unable to fetch record of type ${this.type} without an id`);\n    }\n    /**\n       Reloads the record if it is already loaded. If the record is not\n       loaded it will load the record via `store.findRecord`\n        Example\n        ```javascript\n       let userRef = store.getReference('user', 1);\n        // or trigger a reload\n       userRef.reload().then(...)\n       ```\n        @method reload\n       @return {Promise<record>} the record for this RecordReference\n    */\n\n\n    reload() {\n      var record = this.value();\n\n      if (record) {\n        return record.reload();\n      }\n\n      return this.load();\n    }\n\n  }\n\n  /**\n    @module @ember-data/store\n  */\n\n  /*\n    This file encapsulates the various states that a record can transition\n    through during its lifecycle.\n  */\n\n  /**\n    ### State\n\n    Each record has a `currentState` property that explicitly tracks what\n    state a record is in at any given time. For instance, if a record is\n    newly created and has not yet been sent to the adapter to be saved,\n    it would be in the `root.loaded.created.uncommitted` state.  If a\n    record has had local modifications made to it that are in the\n    process of being saved, the record would be in the\n    `root.loaded.updated.inFlight` state. (This state path will be\n    explained in more detail below.)\n\n    Events are sent by the record or its store to the record's\n    `currentState` property. How the state reacts to these events is\n    dependent on which state it is in. In some states, certain events\n    will be invalid and will cause an exception to be raised.\n\n    States are hierarchical and every state is a sub-state of the\n    `RootState`. For example, a record can be in the\n    `root.deleted.uncommitted` state then transitions into the\n    `root.deleted.inFlight` state. If a child state does not implement\n    an event handler, the state manager will attempt to invoke the event\n    on all parent states until the root state is reached. The state\n    hierarchy of a record is described in terms of a path string. You\n    can determine a record's current state by getting the state's\n    `stateName` property:\n\n    ```javascript\n    record.get('currentState.stateName');\n    //=> \"root.created.uncommitted\"\n     ```\n\n    The hierarchy of valid states that ship with ember data looks like\n    this:\n\n    ```text\n    * root\n      * deleted\n        * saved\n        * uncommitted\n        * inFlight\n      * empty\n      * loaded\n        * created\n          * uncommitted\n          * inFlight\n        * saved\n        * updated\n          * uncommitted\n          * inFlight\n      * loading\n    ```\n\n    The `Model` states are themselves stateless. What that means is\n    that, the hierarchical states that each of *those* points to is a\n    shared data structure. For performance reasons, instead of each\n    record getting its own copy of the hierarchy of states, each record\n    points to this global, immutable shared instance. How does a state\n    know which record it should be acting on? We pass the record\n    instance into the state's event handlers as the first argument.\n\n    The record passed as the first parameter is where you should stash\n    state about the record if needed; you should never store data on the state\n    object itself.\n\n    ### Events and Flags\n\n    A state may implement zero or more events and flags.\n\n    #### Events\n\n    Events are named functions that are invoked when sent to a record. The\n    record will first look for a method with the given name on the\n    current state. If no method is found, it will search the current\n    state's parent, and then its grandparent, and so on until reaching\n    the top of the hierarchy. If the root is reached without an event\n    handler being found, an exception will be raised. This can be very\n    helpful when debugging new features.\n\n    Here's an example implementation of a state with a `myEvent` event handler:\n\n    ```javascript\n    aState: State.create({\n      myEvent: function(manager, param) {\n        console.log(\"Received myEvent with\", param);\n      }\n    })\n    ```\n\n    To trigger this event:\n\n    ```javascript\n    record.send('myEvent', 'foo');\n    //=> \"Received myEvent with foo\"\n    ```\n\n    Note that an optional parameter can be sent to a record's `send()` method,\n    which will be passed as the second parameter to the event handler.\n\n    Events should transition to a different state if appropriate. This can be\n    done by calling the record's `transitionTo()` method with a path to the\n    desired state. The state manager will attempt to resolve the state path\n    relative to the current state. If no state is found at that path, it will\n    attempt to resolve it relative to the current state's parent, and then its\n    parent, and so on until the root is reached. For example, imagine a hierarchy\n    like this:\n\n        * created\n          * uncommitted <-- currentState\n          * inFlight\n        * updated\n          * inFlight\n\n    If we are currently in the `uncommitted` state, calling\n    `transitionTo('inFlight')` would transition to the `created.inFlight` state,\n    while calling `transitionTo('updated.inFlight')` would transition to\n    the `updated.inFlight` state.\n\n    Remember that *only events* should ever cause a state transition. You should\n    never call `transitionTo()` from outside a state's event handler. If you are\n    tempted to do so, create a new event and send that to the state manager.\n\n    #### Flags\n\n    Flags are Boolean values that can be used to introspect a record's current\n    state in a more user-friendly way than examining its state path. For example,\n    instead of doing this:\n\n    ```javascript\n    var statePath = record.get('stateManager.currentPath');\n    if (statePath === 'created.inFlight') {\n      doSomething();\n    }\n    ```\n\n    You can say:\n\n    ```javascript\n    if (record.get('isNew') && record.get('isSaving')) {\n      doSomething();\n    }\n    ```\n\n    If your state does not set a value for a given flag, the value will\n    be inherited from its parent (or the first place in the state hierarchy\n    where it is defined).\n\n    The current set of flags are defined below. If you want to add a new flag,\n    in addition to the area below, you will also need to declare it in the\n    `Model` class.\n\n\n     * [isEmpty](Model/properties/isEmpty?anchor=isEmpty)\n     * [isLoading](Model/properties/isLoading?anchor=isLoading)\n     * [isLoaded](Model/properties/isLoaded?anchor=isLoaded)\n     * [hasDirtyAttributes](Model/properties/hasDirtyAttributes?anchor=hasDirtyAttributes)\n     * [isSaving](Model/properties/isSaving?anchor=isSaving)\n     * [isDeleted](Model/properties/isDeleted?anchor=isDeleted)\n     * [isNew](Model/properties/isNew?anchor=isNew)\n     * [isValid](Model/properties/isValid?anchor=isValid)\n\n    @class RootState\n  */\n  function didSetProperty(internalModel, context) {\n    if (context.isDirty) {\n      internalModel.send('becomeDirty');\n    } else {\n      internalModel.send('propertyWasReset');\n    }\n  } // Implementation notes:\n  //\n  // Each state has a boolean value for all of the following flags:\n  //\n  // * isLoaded: The record has a populated `data` property. When a\n  //   record is loaded via `store.find`, `isLoaded` is false\n  //   until the adapter sets it. When a record is created locally,\n  //   its `isLoaded` property is always true.\n  // * isDirty: The record has local changes that have not yet been\n  //   saved by the adapter. This includes records that have been\n  //   created (but not yet saved) or deleted.\n  // * isSaving: The record has been committed, but\n  //   the adapter has not yet acknowledged that the changes have\n  //   been persisted to the backend.\n  // * isDeleted: The record was marked for deletion. When `isDeleted`\n  //   is true and `isDirty` is true, the record is deleted locally\n  //   but the deletion was not yet persisted. When `isSaving` is\n  //   true, the change is in-flight. When both `isDirty` and\n  //   `isSaving` are false, the change has persisted.\n  // * isNew: The record was created on the client and the adapter\n  //   did not yet report that it was successfully saved.\n  // * isValid: The adapter did not report any server-side validation\n  //   failures.\n  // The dirty state is a abstract state whose functionality is\n  // shared between the `created` and `updated` states.\n  //\n  // The deleted state shares the `isDirty` flag with the\n  // subclasses of `DirtyState`, but with a very different\n  // implementation.\n  //\n  // Dirty states have three child states:\n  //\n  // `uncommitted`: the store has not yet handed off the record\n  //   to be saved.\n  // `inFlight`: the store has handed off the record to be saved,\n  //   but the adapter has not yet acknowledged success.\n  // `invalid`: the record has invalid information and cannot be\n  //   sent to the adapter yet.\n\n\n  var DirtyState = {\n    initialState: 'uncommitted',\n    // FLAGS\n    isDirty: true,\n    // SUBSTATES\n    // When a record first becomes dirty, it is `uncommitted`.\n    // This means that there are local pending changes, but they\n    // have not yet begun to be saved, and are not invalid.\n    uncommitted: {\n      // EVENTS\n      didSetProperty,\n\n      //TODO(Igor) reloading now triggers a\n      //loadingData event, though it seems fine?\n      loadingData() {},\n\n      propertyWasReset(internalModel, name) {\n        if (!internalModel.hasChangedAttributes()) {\n          internalModel.send('rolledBack');\n        }\n      },\n\n      pushedData(internalModel) {\n        if (!internalModel.hasChangedAttributes()) {\n          internalModel.transitionTo('loaded.saved');\n        }\n      },\n\n      becomeDirty() {},\n\n      willCommit(internalModel) {\n        internalModel.transitionTo('inFlight');\n      },\n\n      reloadRecord(internalModel, {\n        resolve,\n        options\n      }) {\n        resolve(internalModel.store._reloadRecord(internalModel, options));\n      },\n\n      rolledBack(internalModel) {\n        internalModel.transitionTo('loaded.saved');\n        internalModel.triggerLater('rolledBack');\n      },\n\n      becameInvalid(internalModel) {\n        internalModel.transitionTo('invalid');\n      },\n\n      rollback(internalModel) {\n        internalModel.rollbackAttributes();\n        internalModel.triggerLater('ready');\n      }\n\n    },\n    // Once a record has been handed off to the adapter to be\n    // saved, it is in the 'in flight' state. Changes to the\n    // record cannot be made during this window.\n    inFlight: {\n      // FLAGS\n      isSaving: true,\n      // EVENTS\n      didSetProperty,\n\n      becomeDirty() {},\n\n      pushedData() {},\n\n      unloadRecord: assertAgainstUnloadRecord,\n\n      // TODO: More robust semantics around save-while-in-flight\n      willCommit() {},\n\n      didCommit(internalModel) {\n        internalModel.transitionTo('saved');\n        internalModel.send('invokeLifecycleCallbacks', this.dirtyType);\n      },\n\n      rolledBack(internalModel) {\n        internalModel.triggerLater('rolledBack');\n      },\n\n      becameInvalid(internalModel) {\n        internalModel.transitionTo('invalid');\n        internalModel.send('invokeLifecycleCallbacks');\n      },\n\n      becameError(internalModel) {\n        internalModel.transitionTo('uncommitted');\n        internalModel.triggerLater('becameError', internalModel);\n      }\n\n    },\n    // A record is in the `invalid` if the adapter has indicated\n    // the the record failed server-side invalidations.\n    invalid: {\n      // FLAGS\n      isValid: false,\n\n      // EVENTS\n      deleteRecord(internalModel) {\n        internalModel.transitionTo('deleted.uncommitted');\n      },\n\n      didSetProperty(internalModel, context) {\n        internalModel.removeErrorMessageFromAttribute(context.name);\n        didSetProperty(internalModel, context);\n\n        if (!internalModel.hasErrors()) {\n          this.becameValid(internalModel);\n        }\n      },\n\n      becameInvalid() {},\n\n      becomeDirty() {},\n\n      pushedData() {},\n\n      willCommit(internalModel) {\n        internalModel.clearErrorMessages();\n        internalModel.transitionTo('inFlight');\n      },\n\n      rolledBack(internalModel) {\n        internalModel.clearErrorMessages();\n        internalModel.transitionTo('loaded.saved');\n        internalModel.triggerLater('ready');\n      },\n\n      becameValid(internalModel) {\n        internalModel.transitionTo('uncommitted');\n      },\n\n      invokeLifecycleCallbacks(internalModel) {\n        internalModel.triggerLater('becameInvalid', internalModel);\n      }\n\n    }\n  }; // The created and updated states are created outside the state\n  // chart so we can reopen their substates and add mixins as\n  // necessary.\n\n  function deepClone(object) {\n    var clone = {};\n    var value;\n\n    for (var prop in object) {\n      value = object[prop];\n\n      if (value && typeof value === 'object') {\n        clone[prop] = deepClone(value);\n      } else {\n        clone[prop] = value;\n      }\n    }\n\n    return clone;\n  }\n\n  function mixin(original, hash) {\n    for (var prop in hash) {\n      original[prop] = hash[prop];\n    }\n\n    return original;\n  }\n\n  function dirtyState(options) {\n    var newState = deepClone(DirtyState);\n    return mixin(newState, options);\n  }\n\n  var createdState = dirtyState({\n    dirtyType: 'created',\n    // FLAGS\n    isNew: true,\n\n    setup(internalModel) {\n      internalModel.updateRecordArrays();\n    }\n\n  });\n\n  createdState.invalid.rolledBack = function (internalModel) {\n    internalModel.transitionTo('deleted.saved');\n    internalModel.triggerLater('rolledBack');\n  };\n\n  createdState.uncommitted.rolledBack = function (internalModel) {\n    internalModel.transitionTo('deleted.saved');\n    internalModel.triggerLater('rolledBack');\n  };\n\n  var updatedState = dirtyState({\n    dirtyType: 'updated'\n  });\n\n  function createdStateDeleteRecord(internalModel) {\n    internalModel.transitionTo('deleted.saved');\n    internalModel.send('invokeLifecycleCallbacks');\n  }\n\n  createdState.uncommitted.deleteRecord = createdStateDeleteRecord;\n  createdState.invalid.deleteRecord = createdStateDeleteRecord;\n\n  createdState.uncommitted.rollback = function (internalModel) {\n    DirtyState.uncommitted.rollback.apply(this, arguments);\n    internalModel.transitionTo('deleted.saved');\n  };\n\n  createdState.uncommitted.pushedData = function (internalModel) {\n    internalModel.transitionTo('loaded.updated.uncommitted');\n    internalModel.triggerLater('didLoad');\n  };\n\n  createdState.uncommitted.propertyWasReset = function () {};\n\n  function assertAgainstUnloadRecord(internalModel) {\n    ( Ember.assert('You can only unload a record which is not inFlight. `' + internalModel + '`', false));\n  }\n\n  updatedState.invalid.becameValid = function (internalModel) {\n    // we're eagerly transition into the loaded.saved state, even though we could\n    // be still dirty; but the setup hook of the loaded.saved state checks for\n    // dirty attributes and transitions into the corresponding dirty state\n    internalModel.transitionTo('loaded.saved');\n  };\n\n  updatedState.inFlight.unloadRecord = assertAgainstUnloadRecord;\n\n  updatedState.uncommitted.deleteRecord = function (internalModel) {\n    internalModel.transitionTo('deleted.uncommitted');\n  };\n\n  updatedState.invalid.rolledBack = function (internalModel) {\n    internalModel.clearErrorMessages();\n    internalModel.transitionTo('loaded.saved');\n    internalModel.triggerLater('rolledBack');\n  };\n\n  var RootState = {\n    // FLAGS\n    isEmpty: false,\n    isLoading: false,\n    isLoaded: false,\n    isDirty: false,\n    isSaving: false,\n    isDeleted: false,\n    isNew: false,\n    isValid: true,\n\n    // DEFAULT EVENTS\n    // Trying to roll back if you're not in the dirty state\n    // doesn't change your state. For example, if you're in the\n    // in-flight state, rolling back the record doesn't move\n    // you out of the in-flight state.\n    rolledBack() {},\n\n    unloadRecord(internalModel) {},\n\n    propertyWasReset() {},\n\n    // SUBSTATES\n    // A record begins its lifecycle in the `empty` state.\n    // If its data will come from the adapter, it will\n    // transition into the `loading` state. Otherwise, if\n    // the record is being created on the client, it will\n    // transition into the `created` state.\n    empty: {\n      isEmpty: true,\n\n      // EVENTS\n      loadingData(internalModel, promise) {\n        {\n          internalModel._promiseProxy = promise;\n        }\n\n        internalModel.transitionTo('loading');\n      },\n\n      loadedData(internalModel) {\n        internalModel.transitionTo('loaded.created.uncommitted');\n        internalModel.triggerLater('ready');\n      },\n\n      pushedData(internalModel) {\n        internalModel.transitionTo('loaded.saved');\n        internalModel.triggerLater('didLoad');\n        internalModel.triggerLater('ready');\n      },\n\n      // Record is already in an empty state, triggering transition to empty here\n      // produce an error.\n      notFound() {}\n\n    },\n    // A record enters this state when the store asks\n    // the adapter for its data. It remains in this state\n    // until the adapter provides the requested data.\n    //\n    // Usually, this process is asynchronous, using an\n    // XHR to retrieve the data.\n    loading: {\n      // FLAGS\n      isLoading: true,\n\n      exit(internalModel) {\n        internalModel._promiseProxy = null;\n      },\n\n      loadingData() {},\n\n      // EVENTS\n      pushedData(internalModel) {\n        internalModel.transitionTo('loaded.saved');\n        internalModel.triggerLater('didLoad');\n        internalModel.triggerLater('ready'); //TODO this seems out of place here\n\n        internalModel.didCleanError();\n      },\n\n      becameError(internalModel) {\n        internalModel.triggerLater('becameError', internalModel);\n      },\n\n      notFound(internalModel) {\n        internalModel.transitionTo('empty');\n      }\n\n    },\n    // A record enters this state when its data is populated.\n    // Most of a record's lifecycle is spent inside substates\n    // of the `loaded` state.\n    loaded: {\n      initialState: 'saved',\n      // FLAGS\n      isLoaded: true,\n\n      //TODO(Igor) Reloading now triggers a loadingData event,\n      //but it should be ok?\n      loadingData() {},\n\n      // SUBSTATES\n      // If there are no local changes to a record, it remains\n      // in the `saved` state.\n      saved: {\n        setup(internalModel) {\n          if (internalModel.hasChangedAttributes()) {\n            internalModel.adapterDidDirty();\n          }\n        },\n\n        // EVENTS\n        didSetProperty,\n\n        pushedData() {},\n\n        becomeDirty(internalModel) {\n          internalModel.transitionTo('updated.uncommitted');\n        },\n\n        willCommit(internalModel) {\n          internalModel.transitionTo('updated.inFlight');\n        },\n\n        reloadRecord(internalModel, {\n          resolve,\n          options\n        }) {\n          {\n            resolve(internalModel.store._reloadRecord(internalModel, options));\n          }\n        },\n\n        deleteRecord(internalModel) {\n          internalModel.transitionTo('deleted.uncommitted');\n        },\n\n        unloadRecord(internalModel) {},\n\n        didCommit() {},\n\n        // loaded.saved.notFound would be triggered by a failed\n        // `reload()` on an unchanged record\n        notFound() {}\n\n      },\n      // A record is in this state after it has been locally\n      // created but before the adapter has indicated that\n      // it has been saved.\n      created: createdState,\n      // A record is in this state if it has already been\n      // saved to the server, but there are new local changes\n      // that have not yet been saved.\n      updated: updatedState\n    },\n    // A record is in this state if it was deleted from the store.\n    deleted: {\n      initialState: 'uncommitted',\n      dirtyType: 'deleted',\n      // FLAGS\n      isDeleted: true,\n      isLoaded: true,\n      isDirty: true,\n\n      // TRANSITIONS\n      setup(internalModel) {\n        internalModel.updateRecordArrays();\n      },\n\n      // SUBSTATES\n      // When a record is deleted, it enters the `start`\n      // state. It will exit this state when the record\n      // starts to commit.\n      uncommitted: {\n        // EVENTS\n        willCommit(internalModel) {\n          internalModel.transitionTo('inFlight');\n        },\n\n        rollback(internalModel) {\n          internalModel.rollbackAttributes();\n          internalModel.triggerLater('ready');\n        },\n\n        pushedData() {},\n\n        becomeDirty() {},\n\n        deleteRecord() {},\n\n        rolledBack(internalModel) {\n          internalModel.transitionTo('loaded.saved');\n          internalModel.triggerLater('ready');\n          internalModel.triggerLater('rolledBack');\n        }\n\n      },\n      // After a record starts committing, but\n      // before the adapter indicates that the deletion\n      // has saved to the server, a record is in the\n      // `inFlight` substate of `deleted`.\n      inFlight: {\n        // FLAGS\n        isSaving: true,\n        // EVENTS\n        unloadRecord: assertAgainstUnloadRecord,\n\n        // TODO: More robust semantics around save-while-in-flight\n        willCommit() {},\n\n        didCommit(internalModel) {\n          internalModel.transitionTo('saved');\n          internalModel.send('invokeLifecycleCallbacks');\n        },\n\n        becameError(internalModel) {\n          internalModel.transitionTo('uncommitted');\n          internalModel.triggerLater('becameError', internalModel);\n        },\n\n        becameInvalid(internalModel) {\n          internalModel.transitionTo('invalid');\n          internalModel.triggerLater('becameInvalid', internalModel);\n        }\n\n      },\n      // Once the adapter indicates that the deletion has\n      // been saved, the record enters the `saved` substate\n      // of `deleted`.\n      saved: {\n        // FLAGS\n        isDirty: false,\n\n        setup(internalModel) {\n          internalModel.removeFromInverseRelationships();\n        },\n\n        invokeLifecycleCallbacks(internalModel) {\n          internalModel.triggerLater('didDelete', internalModel);\n          internalModel.triggerLater('didCommit', internalModel);\n        },\n\n        willCommit() {},\n\n        didCommit() {},\n\n        pushedData() {}\n\n      },\n      invalid: {\n        isValid: false,\n\n        didSetProperty(internalModel, context) {\n          internalModel.removeErrorMessageFromAttribute(context.name);\n          didSetProperty(internalModel, context);\n\n          if (!internalModel.hasErrors()) {\n            this.becameValid(internalModel);\n          }\n        },\n\n        becameInvalid() {},\n\n        becomeDirty() {},\n\n        deleteRecord() {},\n\n        willCommit() {},\n\n        rolledBack(internalModel) {\n          internalModel.clearErrorMessages();\n          internalModel.transitionTo('loaded.saved');\n          internalModel.triggerLater('ready');\n        },\n\n        becameValid(internalModel) {\n          internalModel.transitionTo('uncommitted');\n        }\n\n      }\n    },\n\n    invokeLifecycleCallbacks(internalModel, dirtyType) {\n      if (dirtyType === 'created') {\n        internalModel.triggerLater('didCreate', internalModel);\n      } else {\n        internalModel.triggerLater('didUpdate', internalModel);\n      }\n\n      internalModel.triggerLater('didCommit', internalModel);\n    }\n\n  };\n\n  function wireState(object, parent, name) {\n    // TODO: Use Object.create and copy instead\n    object = mixin(parent ? Object.create(parent) : {}, object);\n    object.parentState = parent;\n    object.stateName = name;\n\n    for (var prop in object) {\n      if (!Object.prototype.hasOwnProperty.call(object, prop) || prop === 'parentState' || prop === 'stateName') {\n        continue;\n      }\n\n      if (typeof object[prop] === 'object') {\n        object[prop] = wireState(object[prop], object, name + '.' + prop);\n      }\n    }\n\n    return object;\n  }\n\n  var RootState$1 = wireState(RootState, null, 'root');\n\n  /**\n    @module @ember-data/store\n  */\n  // once the presentation logic is moved into the Model package we can make\n  // eliminate these lossy and redundant helpers\n  function relationshipsFor$1(instance) {\n    var recordData = recordDataFor(instance);\n    return recordData._relationships;\n  }\n\n  function relationshipStateFor$1(instance, propertyName) {\n    return relationshipsFor$1(instance).get(propertyName);\n  }\n\n  var {\n    hasOwnProperty\n  } = Object.prototype;\n  var ManyArray;\n  var PromiseBelongsTo;\n  var PromiseManyArray;\n  var _found = false;\n\n  var _getModelPackage;\n\n  {\n    _getModelPackage = function () {\n      if (!_found) {\n        var modelPackage = require('@ember-data/model/-private');\n\n        ({\n          ManyArray,\n          PromiseBelongsTo,\n          PromiseManyArray\n        } = modelPackage);\n\n        if (ManyArray && PromiseBelongsTo && PromiseManyArray) {\n          _found = true;\n        }\n      }\n\n      return _found;\n    };\n  } // TODO this should be integrated with the code removal so we can use it together with the if condition\n\n  /*\n    The TransitionChainMap caches the `state.enters`, `state.setups`, and final state reached\n    when transitioning from one state to another, so that future transitions can replay the\n    transition without needing to walk the state tree, collect these hook calls and determine\n     the state to transition into.\n\n     A future optimization would be to build a single chained method out of the collected enters\n     and setups. It may also be faster to do a two level cache (from: { to }) instead of caching based\n     on a key that adds the two together.\n   */\n  var TransitionChainMap = Object.create(null);\n\n  var _extractPivotNameCache = Object.create(null);\n\n  var _splitOnDotCache = Object.create(null);\n\n  function splitOnDot(name) {\n    return _splitOnDotCache[name] || (_splitOnDotCache[name] = name.split('.'));\n  }\n\n  function extractPivotName(name) {\n    return _extractPivotNameCache[name] || (_extractPivotNameCache[name] = splitOnDot(name)[0]);\n  }\n  /*\n    `InternalModel` is the Model class that we use internally inside Ember Data to represent models.\n    Internal ED methods should only deal with `InternalModel` objects. It is a fast, plain Javascript class.\n\n    We expose `Model` to application code, by materializing a `Model` from `InternalModel` lazily, as\n    a performance optimization.\n\n    `InternalModel` should never be exposed to application code. At the boundaries of the system, in places\n    like `find`, `push`, etc. we convert between Models and InternalModels.\n\n    We need to make sure that the properties from `InternalModel` are correctly exposed/proxied on `Model`\n    if they are needed.\n\n    @private\n    @class InternalModel\n  */\n\n\n  class InternalModel {\n    // Not typed yet\n    // The previous ManyArrays for this relationship which will be destroyed when\n    // we create a new ManyArray, but in the interim the retained version will be\n    // updated if inverse internal models are unloaded.\n    constructor(store, identifier) {\n      this.store = store;\n      this.identifier = identifier;\n      this._id = void 0;\n      this._tag = 0;\n      this.modelName = void 0;\n      this.clientId = void 0;\n      this.__recordData = void 0;\n      this._isDestroyed = void 0;\n      this.isError = void 0;\n      this._pendingRecordArrayManagerFlush = void 0;\n      this._isDematerializing = void 0;\n      this.isReloading = void 0;\n      this._doNotDestroy = void 0;\n      this.isDestroying = void 0;\n      this._promiseProxy = void 0;\n      this._record = void 0;\n      this._scheduledDestroy = void 0;\n      this._modelClass = void 0;\n      this.__deferredTriggers = void 0;\n      this.__recordArrays = void 0;\n      this._references = void 0;\n      this._recordReference = void 0;\n      this._manyArrayCache = Object.create(null);\n      this._retainedManyArrayCache = Object.create(null);\n      this._relationshipPromisesCache = Object.create(null);\n      this._relationshipProxyCache = Object.create(null);\n      this.currentState = void 0;\n      this.error = void 0;\n\n      {\n        _getModelPackage();\n      }\n\n      this._id = identifier.id;\n      this.modelName = identifier.type;\n      this.clientId = identifier.lid;\n      this.__recordData = null; // this ensure ordered set can quickly identify this as unique\n\n      this[Ember.GUID_KEY] = identifier.lid;\n      this._promiseProxy = null;\n      this._record = null;\n      this._isDestroyed = false;\n      this.isError = false;\n      this._pendingRecordArrayManagerFlush = false; // used by the recordArrayManager\n      // During dematerialization we don't want to rematerialize the record.  The\n      // reason this might happen is that dematerialization removes records from\n      // record arrays,  and Ember arrays will always `objectAt(0)` and\n      // `objectAt(len - 1)` to test whether or not `firstObject` or `lastObject`\n      // have changed.\n\n      this._isDematerializing = false;\n      this._scheduledDestroy = null;\n      this.resetRecord(); // caches for lazy getters\n\n      this._modelClass = null;\n      this.__deferredTriggers = null;\n      this.__recordArrays = null;\n      this._references = null;\n      this._recordReference = null;\n    }\n\n    get id() {\n      return this.identifier.id;\n    }\n\n    set id(value) {\n      if (value !== this._id) {\n        var newIdentifier = {\n          type: this.identifier.type,\n          lid: this.identifier.lid,\n          id: value\n        };\n        identifierCacheFor(this.store).updateRecordIdentifier(this.identifier, newIdentifier);\n        Ember.set(this, '_tag', this._tag + 1); // TODO Show deprecation for private api\n      }\n    }\n\n    get modelClass() {\n      if (this.store.modelFor) {\n        return this._modelClass || (this._modelClass = this.store.modelFor(this.modelName));\n      }\n    }\n\n    get type() {\n      return this.modelClass;\n    }\n\n    get recordReference() {\n      if (this._recordReference === null) {\n        this._recordReference = new RecordReference(this.store, this);\n      }\n\n      return this._recordReference;\n    }\n\n    get _recordData() {\n      if (this.__recordData === null) {\n        var recordData = this.store._createRecordData(this.identifier);\n\n        this._recordData = recordData;\n        return recordData;\n      }\n\n      return this.__recordData;\n    }\n\n    set _recordData(newValue) {\n      this.__recordData = newValue;\n    }\n\n    get _recordArrays() {\n      if (this.__recordArrays === null) {\n        this.__recordArrays = new Set();\n      }\n\n      return this.__recordArrays;\n    }\n\n    get references() {\n      if (this._references === null) {\n        this._references = Object.create(null);\n      }\n\n      return this._references;\n    }\n\n    get _deferredTriggers() {\n      if (this.__deferredTriggers === null) {\n        this.__deferredTriggers = [];\n      }\n\n      return this.__deferredTriggers;\n    }\n\n    isHiddenFromRecordArrays() {\n      // During dematerialization we don't want to rematerialize the record.\n      // recordWasDeleted can cause other records to rematerialize because it\n      // removes the internal model from the array and Ember arrays will always\n      // `objectAt(0)` and `objectAt(len -1)` to check whether `firstObject` or\n      // `lastObject` have changed.  When this happens we don't want those\n      // models to rematerialize their records.\n      // eager checks to avoid instantiating record data if we are empty or loading\n      if (this.isEmpty()) {\n        return true;\n      }\n\n      var isRecordFullyDeleted;\n\n      {\n        isRecordFullyDeleted = this.currentState.stateName === 'root.deleted.saved';\n      }\n\n      return this._isDematerializing || this.hasScheduledDestroy() || this.isDestroyed || isRecordFullyDeleted;\n    }\n\n    _isRecordFullyDeleted() {\n      {\n        // assert here\n        return false;\n      }\n    }\n\n    isRecordInUse() {\n      var record = this._record;\n      return record && !(record.get('isDestroyed') || record.get('isDestroying'));\n    }\n\n    isEmpty() {\n      return this.currentState.isEmpty;\n    }\n\n    isLoading() {\n      return this.currentState.isLoading;\n    }\n\n    isLoaded() {\n      return this.currentState.isLoaded;\n    }\n\n    hasDirtyAttributes() {\n      return this.currentState.hasDirtyAttributes;\n    }\n\n    isSaving() {\n      return this.currentState.isSaving;\n    }\n\n    isDeleted() {\n      {\n        return this.currentState.isDeleted;\n      }\n    }\n\n    isNew() {\n      {\n        return this.currentState.isNew;\n      }\n    }\n\n    isValid() {\n      {\n        return this.currentState.isValid;\n      }\n    }\n\n    dirtyType() {\n      return this.currentState.dirtyType;\n    }\n\n    getRecord(properties) {\n      if (!this._record && !this._isDematerializing) {\n        var {\n          store: _store\n        } = this;\n\n        {\n          {\n            // lookupFactory should really return an object that creates\n            // instances with the injections applied\n            var createOptions = {\n              store: _store,\n              _internalModel: this,\n              currentState: this.currentState\n            };\n\n            {\n              createOptions.isError = this.isError;\n              createOptions.adapterError = this.error;\n            }\n\n            if (properties !== undefined) {\n              ( !(typeof properties === 'object' && properties !== null) && Ember.assert(`You passed '${properties}' as properties for record creation instead of an object.`, typeof properties === 'object' && properties !== null));\n\n              if ('id' in properties) {\n                var id = coerceId(properties.id);\n\n                if (id !== null) {\n                  this.setId(id);\n                }\n              } // convert relationship Records to RecordDatas before passing to RecordData\n\n\n              var defs = _store._relationshipsDefinitionFor(this.modelName);\n\n              if (defs !== null) {\n                var keys = Object.keys(properties);\n                var relationshipValue;\n\n                for (var i = 0; i < keys.length; i++) {\n                  var prop = keys[i];\n                  var def = defs[prop];\n\n                  if (def !== undefined) {\n                    if (def.kind === 'hasMany') {\n                      {\n                        assertRecordsPassedToHasMany(properties[prop]);\n                      }\n\n                      relationshipValue = extractRecordDatasFromRecords(properties[prop]);\n                    } else {\n                      relationshipValue = extractRecordDataFromRecord(properties[prop]);\n                    }\n\n                    properties[prop] = relationshipValue;\n                  }\n                }\n              }\n            }\n\n            var additionalCreateOptions = this._recordData._initRecordCreateOptions(properties);\n\n            Ember.assign(createOptions, additionalCreateOptions); // ensure that `getOwner(this)` works inside a model instance\n\n            Ember.setOwner(createOptions, Ember.getOwner(_store));\n            this._record = _store._modelFactoryFor(this.modelName).create(createOptions);\n            setRecordIdentifier(this._record, this.identifier);\n          }\n        }\n\n        this._triggerDeferredTriggers();\n      }\n\n      return this._record;\n    }\n\n    resetRecord() {\n      this._record = null;\n      this.isReloading = false;\n      this.error = null;\n      this.currentState = RootState$1.empty;\n    }\n\n    dematerializeRecord() {\n      this._isDematerializing = true; // TODO IGOR add a test that fails when this is missing, something that involves canceliing a destroy\n      // and the destroy not happening, and then later on trying to destroy\n\n      this._doNotDestroy = false;\n\n      if (this._record) {\n        {\n          this._record.destroy();\n        }\n\n        Object.keys(this._relationshipProxyCache).forEach(key => {\n          if (this._relationshipProxyCache[key].destroy) {\n            this._relationshipProxyCache[key].destroy();\n          }\n\n          delete this._relationshipProxyCache[key];\n        });\n        Object.keys(this._manyArrayCache).forEach(key => {\n          var manyArray = this._retainedManyArrayCache[key] = this._manyArrayCache[key];\n          delete this._manyArrayCache[key];\n\n          if (manyArray && !manyArray._inverseIsAsync) {\n            /*\n              If the manyArray is for a sync relationship, we should clear it\n                to preserve the semantics of client-side delete.\n               It is likely in this case instead of retaining we should destroy\n                - @runspired\n            */\n            manyArray.clear();\n          }\n        });\n      } // move to an empty never-loaded state\n\n\n      this._recordData.unloadRecord();\n\n      this.resetRecord();\n      this.updateRecordArrays();\n    }\n\n    deleteRecord() {\n\n      this.send('deleteRecord');\n    }\n\n    save(options) {\n      var promiseLabel = 'DS: Model#save ' + this;\n      var resolver = Ember.RSVP.defer(promiseLabel);\n\n      {\n        this.store.scheduleSave(this, resolver, options);\n        return resolver.promise;\n      }\n    }\n\n    startedReloading() {\n      this.isReloading = true;\n\n      if (this.hasRecord) {\n        Ember.set(this._record, 'isReloading', true);\n      }\n    }\n\n    finishedReloading() {\n      this.isReloading = false;\n\n      if (this.hasRecord) {\n        Ember.set(this._record, 'isReloading', false);\n      }\n    }\n\n    reload(options) {\n      {\n        this.startedReloading();\n\n        var _internalModel = this;\n\n        var promiseLabel = 'DS: Model#reload of ' + this;\n        return new Ember.RSVP.Promise(function (resolve) {\n          _internalModel.send('reloadRecord', {\n            resolve,\n            options\n          });\n        }, promiseLabel).then(function () {\n          _internalModel.didCleanError();\n\n          return _internalModel;\n        }, function (error) {\n          _internalModel.didError(error);\n\n          throw error;\n        }, 'DS: Model#reload complete, update flags').finally(function () {\n          _internalModel.finishedReloading();\n        });\n      }\n    }\n    /*\n      Unload the record for this internal model. This will cause the record to be\n      destroyed and freed up for garbage collection. It will also do a check\n      for cleaning up internal models.\n       This check is performed by first computing the set of related internal\n      models. If all records in this set are unloaded, then the entire set is\n      destroyed. Otherwise, nothing in the set is destroyed.\n       This means that this internal model will be freed up for garbage collection\n      once all models that refer to it via some relationship are also unloaded.\n    */\n\n\n    unloadRecord() {\n      if (this.isDestroyed) {\n        return;\n      }\n\n      this.send('unloadRecord');\n      this.dematerializeRecord();\n\n      if (this._scheduledDestroy === null) {\n        this._scheduledDestroy = Ember.run.backburner.schedule('destroy', this, '_checkForOrphanedInternalModels');\n      }\n    }\n\n    hasScheduledDestroy() {\n      return !!this._scheduledDestroy;\n    }\n\n    cancelDestroy() {\n      ( !(!this.isDestroyed) && Ember.assert(`You cannot cancel the destruction of an InternalModel once it has already been destroyed`, !this.isDestroyed));\n      this._doNotDestroy = true;\n      this._isDematerializing = false;\n      Ember.run.cancel(this._scheduledDestroy);\n      this._scheduledDestroy = null;\n    } // typically, we prefer to async destroy this lets us batch cleanup work.\n    // Unfortunately, some scenarios where that is not possible. Such as:\n    //\n    // ```js\n    // const record = store.find(‘record’, 1);\n    // record.unloadRecord();\n    // store.createRecord(‘record’, 1);\n    // ```\n    //\n    // In those scenarios, we make that model's cleanup work, sync.\n    //\n\n\n    destroySync() {\n      if (this._isDematerializing) {\n        this.cancelDestroy();\n      }\n\n      this._checkForOrphanedInternalModels();\n\n      if (this.isDestroyed || this.isDestroying) {\n        return;\n      } // just in-case we are not one of the orphaned, we should still\n      // still destroy ourselves\n\n\n      this.destroy();\n    }\n\n    _checkForOrphanedInternalModels() {\n      this._isDematerializing = false;\n      this._scheduledDestroy = null;\n\n      if (this.isDestroyed) {\n        return;\n      }\n    }\n\n    eachRelationship(callback, binding) {\n      return this.modelClass.eachRelationship(callback, binding);\n    }\n\n    _findBelongsTo(key, resource, relationshipMeta, options) {\n      // TODO @runspired follow up if parent isNew then we should not be attempting load here\n      return this.store._findBelongsToByJsonApiResource(resource, this, relationshipMeta, options).then(internalModel => handleCompletedRelationshipRequest(this, key, resource._relationship, internalModel, null), e => handleCompletedRelationshipRequest(this, key, resource._relationship, null, e));\n    }\n\n    getBelongsTo(key, options) {\n      var resource = this._recordData.getBelongsTo(key);\n\n      var identifier = resource && resource.data ? identifierCacheFor(this.store).getOrCreateRecordIdentifier(resource.data) : null;\n\n      var relationshipMeta = this.store._relationshipMetaFor(this.modelName, null, key);\n\n      var store = this.store;\n      var parentInternalModel = this;\n      var async = relationshipMeta.options.async;\n      var isAsync = typeof async === 'undefined' ? true : async;\n      var _belongsToState = {\n        key,\n        store,\n        originatingInternalModel: this,\n        modelName: relationshipMeta.type\n      };\n\n      if (isAsync) {\n        var internalModel = identifier !== null ? store._internalModelForResource(identifier) : null;\n\n        if (resource._relationship.hasFailedLoadAttempt) {\n          return this._relationshipProxyCache[key];\n        }\n\n        var promise = this._findBelongsTo(key, resource, relationshipMeta, options);\n\n        return this._updatePromiseProxyFor('belongsTo', key, {\n          promise,\n          content: internalModel ? internalModel.getRecord() : null,\n          _belongsToState\n        });\n      } else {\n        if (identifier === null) {\n          return null;\n        } else {\n          var _internalModel2 = store._internalModelForResource(identifier);\n\n          var toReturn = _internalModel2.getRecord();\n\n          ( !(toReturn === null || !toReturn.get('isEmpty')) && Ember.assert(\"You looked up the '\" + key + \"' relationship on a '\" + parentInternalModel.modelName + \"' with id \" + parentInternalModel.id + ' but some of the associated records were not loaded. Either make sure they are all loaded together with the parent record, or specify that the relationship is async (`belongsTo({ async: true })`)', toReturn === null || !toReturn.get('isEmpty')));\n          return toReturn;\n        }\n      }\n    } // TODO Igor consider getting rid of initial state\n\n\n    getManyArray(key, isAsync = false) {\n      var relationshipMeta = this.store._relationshipMetaFor(this.modelName, null, key);\n\n      var jsonApi = this._recordData.getHasMany(key);\n\n      var manyArray = this._manyArrayCache[key];\n      ( !(!manyArray || !this._retainedManyArrayCache[key]) && Ember.assert(`Error: relationship ${this.modelName}:${key} has both many array and retained many array`, !manyArray || !this._retainedManyArrayCache[key]));\n\n      if (!manyArray) {\n        var initialState = this.store._getHasManyByJsonApiResource(jsonApi); // TODO move this to a public api\n\n\n        var inverseIsAsync = jsonApi._relationship ? jsonApi._relationship._inverseIsAsync() : false;\n        manyArray = ManyArray.create({\n          store: this.store,\n          type: this.store.modelFor(relationshipMeta.type),\n          recordData: this._recordData,\n          meta: jsonApi.meta,\n          links:  jsonApi.links ,\n          key,\n          isPolymorphic: relationshipMeta.options.polymorphic,\n          initialState: initialState.slice(),\n          _inverseIsAsync: inverseIsAsync,\n          internalModel: this,\n          isLoaded: !isAsync\n        });\n        this._manyArrayCache[key] = manyArray;\n      }\n\n      if (this._retainedManyArrayCache[key]) {\n        this._retainedManyArrayCache[key].destroy();\n\n        delete this._retainedManyArrayCache[key];\n      }\n\n      return manyArray;\n    }\n\n    fetchAsyncHasMany(key, relationshipMeta, jsonApi, manyArray, options) {\n      // TODO @runspired follow up if parent isNew then we should not be attempting load here\n      var loadingPromise = this._relationshipPromisesCache[key];\n\n      if (loadingPromise) {\n        return loadingPromise;\n      }\n\n      loadingPromise = this.store._findHasManyByJsonApiResource(jsonApi, this, relationshipMeta, options).then(() => {\n        // TODO why don't we do this in the store method\n        manyArray.retrieveLatest();\n        manyArray.set('isLoaded', true);\n        return manyArray;\n      }).then(manyArray => handleCompletedRelationshipRequest(this, key, jsonApi._relationship, manyArray, null), e => handleCompletedRelationshipRequest(this, key, jsonApi._relationship, null, e));\n      this._relationshipPromisesCache[key] = loadingPromise;\n      return loadingPromise;\n    }\n\n    getHasMany(key, options) {\n      var jsonApi = this._recordData.getHasMany(key);\n\n      var relationshipMeta = this.store._relationshipMetaFor(this.modelName, null, key);\n\n      var async = relationshipMeta.options.async;\n      var isAsync = typeof async === 'undefined' ? true : async;\n      var manyArray = this.getManyArray(key, isAsync);\n\n      if (isAsync) {\n        if (jsonApi._relationship.hasFailedLoadAttempt) {\n          return this._relationshipProxyCache[key];\n        }\n\n        var promise = this.fetchAsyncHasMany(key, relationshipMeta, jsonApi, manyArray, options);\n        return this._updatePromiseProxyFor('hasMany', key, {\n          promise,\n          content: manyArray\n        });\n      } else {\n        ( !(!manyArray.anyUnloaded()) && Ember.assert(`You looked up the '${key}' relationship on a '${this.type.modelName}' with id ${this.id} but some of the associated records were not loaded. Either make sure they are all loaded together with the parent record, or specify that the relationship is async ('hasMany({ async: true })')`, !manyArray.anyUnloaded()));\n        return manyArray;\n      }\n    }\n\n    _updatePromiseProxyFor(kind, key, args) {\n      var promiseProxy = this._relationshipProxyCache[key];\n\n      if (promiseProxy) {\n        if (args.content !== undefined) {\n          // this usage of `any` can be removed when `@types/ember_object` proxy allows `null` for content\n          promiseProxy.set('content', args.content);\n        }\n\n        promiseProxy.set('promise', args.promise);\n      } else {\n        var klass = kind === 'hasMany' ? PromiseManyArray : PromiseBelongsTo; // this usage of `any` can be removed when `@types/ember_object` proxy allows `null` for content\n\n        this._relationshipProxyCache[key] = klass.create(args);\n      }\n\n      return this._relationshipProxyCache[key];\n    }\n\n    reloadHasMany(key, options) {\n      var loadingPromise = this._relationshipPromisesCache[key];\n\n      if (loadingPromise) {\n        return loadingPromise;\n      }\n\n      var jsonApi = this._recordData.getHasMany(key); // TODO move this to a public api\n\n\n      if (jsonApi._relationship) {\n        jsonApi._relationship.setHasFailedLoadAttempt(false);\n\n        jsonApi._relationship.setShouldForceReload(true);\n      }\n\n      var relationshipMeta = this.store._relationshipMetaFor(this.modelName, null, key);\n\n      var manyArray = this.getManyArray(key);\n      var promise = this.fetchAsyncHasMany(key, relationshipMeta, jsonApi, manyArray, options);\n\n      if (this._relationshipProxyCache[key]) {\n        return this._updatePromiseProxyFor('hasMany', key, {\n          promise\n        });\n      }\n\n      return promise;\n    }\n\n    reloadBelongsTo(key, options) {\n      var loadingPromise = this._relationshipPromisesCache[key];\n\n      if (loadingPromise) {\n        return loadingPromise;\n      }\n\n      var resource = this._recordData.getBelongsTo(key); // TODO move this to a public api\n\n\n      if (resource._relationship) {\n        resource._relationship.setHasFailedLoadAttempt(false);\n\n        resource._relationship.setShouldForceReload(true);\n      }\n\n      var relationshipMeta = this.store._relationshipMetaFor(this.modelName, null, key);\n\n      var promise = this._findBelongsTo(key, resource, relationshipMeta, options);\n\n      if (this._relationshipProxyCache[key]) {\n        return this._updatePromiseProxyFor('belongsTo', key, {\n          promise\n        });\n      }\n\n      return promise;\n    }\n\n    destroyFromRecordData() {\n      if (this._doNotDestroy) {\n        this._doNotDestroy = false;\n        return;\n      }\n\n      this.destroy();\n    }\n\n    destroy() {\n      ( !(!this._record || this._record.get('isDestroyed') || this._record.get('isDestroying')) && Ember.assert('Cannot destroy an internalModel while its record is materialized', !this._record || this._record.get('isDestroyed') || this._record.get('isDestroying')));\n      this.isDestroying = true;\n      Object.keys(this._retainedManyArrayCache).forEach(key => {\n        this._retainedManyArrayCache[key].destroy();\n\n        delete this._retainedManyArrayCache[key];\n      });\n      internalModelFactoryFor(this.store).remove(this);\n      this._isDestroyed = true;\n    }\n\n    eachAttribute(callback, binding) {\n      return this.modelClass.eachAttribute(callback, binding);\n    }\n\n    inverseFor(key) {\n      return this.modelClass.inverseFor(key);\n    }\n\n    setupData(data) {\n      var changedKeys = this._recordData.pushData(data, this.hasRecord);\n\n      if (this.hasRecord) {\n        this._record._notifyProperties(changedKeys);\n      }\n\n      this.pushedData();\n    }\n\n    getAttributeValue(key) {\n      return this._recordData.getAttr(key);\n    }\n\n    setDirtyHasMany(key, records) {\n      assertRecordsPassedToHasMany(records);\n      return this._recordData.setDirtyHasMany(key, extractRecordDatasFromRecords(records));\n    }\n\n    setDirtyBelongsTo(key, value) {\n      return this._recordData.setDirtyBelongsTo(key, extractRecordDataFromRecord(value));\n    }\n\n    setDirtyAttribute(key, value) {\n      if (this.isDeleted()) {\n        throw new Ember.Error(`Attempted to set '${key}' to '${value}' on the deleted record ${this}`);\n      }\n\n      var currentValue = this.getAttributeValue(key);\n\n      if (currentValue !== value) {\n        this._recordData.setDirtyAttribute(key, value);\n\n        var isDirty = this._recordData.isAttrDirty(key);\n\n        this.send('didSetProperty', {\n          name: key,\n          isDirty: isDirty\n        });\n      }\n\n      return value;\n    }\n\n    get isDestroyed() {\n      return this._isDestroyed;\n    }\n\n    get hasRecord() {\n      return !!this._record;\n    }\n    /*\n      @method createSnapshot\n      @private\n    */\n\n\n    createSnapshot(options) {\n      return new Snapshot(options || {}, this.identifier, this.store);\n    }\n    /*\n      @method loadingData\n      @private\n      @param {Promise} promise\n    */\n\n\n    loadingData(promise) {\n      {\n        this.send('loadingData', promise);\n      }\n    }\n    /*\n      @method loadedData\n      @private\n    */\n\n\n    loadedData() {\n      this.send('loadedData');\n    }\n    /*\n      @method notFound\n      @private\n    */\n\n\n    notFound() {\n      this.send('notFound');\n    }\n    /*\n      @method pushedData\n      @private\n    */\n\n\n    pushedData() {\n      this.send('pushedData');\n    }\n\n    hasChangedAttributes() {\n      {\n        if (this.isLoading() && !this.isReloading) {\n          // no need to calculate changed attributes when calling `findRecord`\n          return false;\n        }\n      }\n\n      return this._recordData.hasChangedAttributes();\n    }\n    /*\n      Returns an object, whose keys are changed properties, and value is an\n      [oldProp, newProp] array.\n       @method changedAttributes\n      @private\n    */\n\n\n    changedAttributes() {\n      {\n        if (this.isLoading() && !this.isReloading) {\n          // no need to calculate changed attributes when calling `findRecord`\n          return {};\n        }\n      }\n\n      return this._recordData.changedAttributes();\n    }\n    /*\n      @method adapterWillCommit\n      @private\n    */\n\n\n    adapterWillCommit() {\n      this._recordData.willCommit();\n\n      this.send('willCommit');\n    }\n    /*\n      @method adapterDidDirty\n      @private\n    */\n\n\n    adapterDidDirty() {\n      this.send('becomeDirty');\n    }\n    /*\n      @method send\n      @private\n      @param {String} name\n      @param {Object} context\n    */\n\n\n    send(name, context) {\n      var currentState = this.currentState;\n\n      if (!currentState[name]) {\n        this._unhandledEvent(currentState, name, context);\n      }\n\n      return currentState[name](this, context);\n    }\n\n    manyArrayRecordAdded(key) {\n      if (this.hasRecord) {\n        {\n          this._record.notifyHasManyAdded(key);\n        }\n      }\n    }\n\n    notifyHasManyChange(key) {\n      if (this.hasRecord) {\n        {\n          var manyArray = this._manyArrayCache[key];\n\n          if (manyArray) {\n            // TODO: this will \"resurrect\" previously unloaded records\n            // see test '1:many async unload many side'\n            //  in `tests/integration/records/unload-test.js`\n            //  probably we don't want to retrieve latest eagerly when notifyhasmany changed\n            //  but rather lazily when someone actually asks for a manyarray\n            //\n            //  that said, also not clear why we haven't moved this to retainedmanyarray so maybe that's the bit that's just not workign\n            manyArray.retrieveLatest();\n          }\n        }\n      }\n    }\n\n    notifyBelongsToChange(key) {\n      if (this.hasRecord) {\n        {\n          this._record.notifyBelongsToChange(key, this._record);\n        }\n      }\n    }\n\n    hasManyRemovalCheck(key) {\n      var manyArray = this._manyArrayCache[key] || this._retainedManyArrayCache[key];\n      var didRemoveUnloadedModel = false;\n\n      if (manyArray) {\n        didRemoveUnloadedModel = manyArray.removeUnloadedInternalModel();\n\n        if (this._manyArrayCache[key] && didRemoveUnloadedModel) {\n          this._retainedManyArrayCache[key] = this._manyArrayCache[key];\n          delete this._manyArrayCache[key];\n        }\n      }\n\n      return didRemoveUnloadedModel;\n    }\n\n    notifyPropertyChange(key) {\n      if (this.hasRecord) {\n        {\n          this._record.notifyPropertyChange(key);\n        }\n      }\n\n      {\n        var manyArray = this._manyArrayCache[key] || this._retainedManyArrayCache[key];\n\n        if (manyArray) {\n          var didRemoveUnloadedModel = manyArray.removeUnloadedInternalModel();\n\n          if (this._manyArrayCache[key] && didRemoveUnloadedModel) {\n            this._retainedManyArrayCache[key] = this._manyArrayCache[key];\n            delete this._manyArrayCache[key];\n          }\n        }\n      }\n    }\n\n    notifyStateChange(key) {\n      ( Ember.assert('Cannot notify state change if Record Data State flag is not on', !!false));\n\n      if (this.hasRecord) {\n        {\n          if (!key || key === 'isNew') {\n            this.getRecord().notifyPropertyChange('isNew');\n          }\n\n          if (!key || key === 'isDeleted') {\n            this.getRecord().notifyPropertyChange('isDeleted');\n          }\n        }\n      }\n\n      if (!key || key === 'isDeletionCommitted') {\n        this.updateRecordArrays();\n      }\n    }\n\n    didCreateRecord() {\n      this._recordData.clientDidCreate();\n    }\n\n    rollbackAttributes() {\n      var dirtyKeys = this._recordData.rollbackAttributes();\n\n      if (Ember.get(this, 'isError')) {\n        this.didCleanError();\n      }\n\n      this.send('rolledBack');\n\n      if (this._record && dirtyKeys && dirtyKeys.length > 0) {\n        this._record._notifyProperties(dirtyKeys);\n      }\n    }\n    /*\n      @method transitionTo\n      @private\n      @param {String} name\n    */\n\n\n    transitionTo(name) {\n      // POSSIBLE TODO: Remove this code and replace with\n      // always having direct reference to state objects\n      var pivotName = extractPivotName(name);\n      var state = this.currentState;\n      var transitionMapId = `${state.stateName}->${name}`;\n\n      do {\n        if (state.exit) {\n          state.exit(this);\n        }\n\n        state = state.parentState;\n      } while (!state[pivotName]);\n\n      var setups;\n      var enters;\n      var i;\n      var l;\n      var map = TransitionChainMap[transitionMapId];\n\n      if (map) {\n        setups = map.setups;\n        enters = map.enters;\n        state = map.state;\n      } else {\n        setups = [];\n        enters = [];\n        var path = splitOnDot(name);\n\n        for (i = 0, l = path.length; i < l; i++) {\n          state = state[path[i]];\n\n          if (state.enter) {\n            enters.push(state);\n          }\n\n          if (state.setup) {\n            setups.push(state);\n          }\n        }\n\n        TransitionChainMap[transitionMapId] = {\n          setups,\n          enters,\n          state\n        };\n      }\n\n      for (i = 0, l = enters.length; i < l; i++) {\n        enters[i].enter(this);\n      }\n\n      this.currentState = state;\n\n      if (this.hasRecord) {\n        Ember.set(this._record, 'currentState', state);\n      }\n\n      for (i = 0, l = setups.length; i < l; i++) {\n        setups[i].setup(this);\n      }\n    }\n\n    _unhandledEvent(state, name, context) {\n      var errorMessage = 'Attempted to handle event `' + name + '` ';\n      errorMessage += 'on ' + String(this) + ' while in state ';\n      errorMessage += state.stateName + '. ';\n\n      if (context !== undefined) {\n        errorMessage += 'Called with ' + Ember.inspect(context) + '.';\n      }\n\n      throw new Ember.Error(errorMessage);\n    }\n\n    triggerLater(...args) {\n      if (this._deferredTriggers.push(args) !== 1) {\n        return;\n      }\n\n      this.store._updateInternalModel(this);\n    }\n\n    _triggerDeferredTriggers() {\n      //TODO: Before 1.0 we want to remove all the events that happen on the pre materialized record,\n      //but for now, we queue up all the events triggered before the record was materialized, and flush\n      //them once we have the record\n      if (!this.hasRecord) {\n        return;\n      }\n\n      var triggers = this._deferredTriggers;\n      var record = this._record;\n      var trigger = record.trigger; // TODO Igor make nicer check\n\n      if (trigger && typeof trigger === 'function') {\n        for (var i = 0, l = triggers.length; i < l; i++) {\n          var eventName = triggers[i];\n          trigger.apply(record, eventName);\n        }\n      }\n\n      triggers.length = 0;\n    }\n\n    removeFromInverseRelationships(isNew = false) {\n      this._recordData.removeFromInverseRelationships(isNew);\n    }\n    /*\n      When a find request is triggered on the store, the user can optionally pass in\n      attributes and relationships to be preloaded. These are meant to behave as if they\n      came back from the server, except the user obtained them out of band and is informing\n      the store of their existence. The most common use case is for supporting client side\n      nested URLs, such as `/posts/1/comments/2` so the user can do\n      `store.findRecord('comment', 2, { preload: { post: 1 } })` without having to fetch the post.\n       Preloaded data can be attributes and relationships passed in either as IDs or as actual\n      models.\n       @method preloadData\n      @private\n      @param {Object} preload\n    */\n\n\n    preloadData(preload) {\n      var jsonPayload = {}; //TODO(Igor) consider the polymorphic case\n\n      Object.keys(preload).forEach(key => {\n        var preloadValue = Ember.get(preload, key);\n        var relationshipMeta = this.modelClass.metaForProperty(key);\n\n        if (relationshipMeta.isRelationship) {\n          if (!jsonPayload.relationships) {\n            jsonPayload.relationships = {};\n          }\n\n          jsonPayload.relationships[key] = this._preloadRelationship(key, preloadValue);\n        } else {\n          if (!jsonPayload.attributes) {\n            jsonPayload.attributes = {};\n          }\n\n          jsonPayload.attributes[key] = preloadValue;\n        }\n      });\n\n      this._recordData.pushData(jsonPayload);\n    }\n\n    _preloadRelationship(key, preloadValue) {\n      var relationshipMeta = this.modelClass.metaForProperty(key);\n      var modelClass = relationshipMeta.type;\n      var data;\n\n      if (relationshipMeta.kind === 'hasMany') {\n        ( !(Array.isArray(preloadValue)) && Ember.assert('You need to pass in an array to set a hasMany property on a record', Array.isArray(preloadValue)));\n        data = preloadValue.map(value => this._convertPreloadRelationshipToJSON(value, modelClass));\n      } else {\n        data = this._convertPreloadRelationshipToJSON(preloadValue, modelClass);\n      }\n\n      return {\n        data\n      };\n    }\n\n    _convertPreloadRelationshipToJSON(value, modelClass) {\n      if (typeof value === 'string' || typeof value === 'number') {\n        return {\n          type: modelClass,\n          id: value\n        };\n      }\n\n      var internalModel;\n\n      if (value._internalModel) {\n        internalModel = value._internalModel;\n      } else {\n        internalModel = value;\n      } // TODO IGOR DAVID assert if no id is present\n\n\n      return {\n        type: internalModel.modelName,\n        id: internalModel.id\n      };\n    }\n    /*\n      Used to notify the store to update FilteredRecordArray membership.\n       @method updateRecordArrays\n      @private\n    */\n\n\n    updateRecordArrays() {\n      // @ts-ignore: Store is untyped and typescript does not detect instance props set in `init`\n      this.store.recordArrayManager.recordDidChange(this);\n    }\n\n    setId(id) {\n      var didChange = id !== this._id;\n      this._id = id;\n      Ember.set(this, '_tag', this._tag + 1);\n\n      if (didChange && id !== null) {\n        this.store.setRecordId(this.modelName, id, this.clientId); // internal set of ID to get it to RecordData from DS.Model\n\n        if (this._recordData.__setId) {\n          this._recordData.__setId(id);\n        }\n      }\n\n      if (didChange && this.hasRecord) {\n        {\n          this.notifyPropertyChange('id');\n        }\n      }\n    }\n\n    didError(error) {\n      {\n        this.error = error;\n        this.isError = true;\n\n        if (this.hasRecord) {\n          this._record.setProperties({\n            isError: true,\n            adapterError: error\n          });\n        }\n      }\n    }\n\n    didCleanError() {\n      {\n        this.error = null;\n        this.isError = false;\n\n        if (this.hasRecord) {\n          this._record.setProperties({\n            isError: false,\n            adapterError: null\n          });\n        }\n      }\n    }\n    /*\n      If the adapter did not return a hash in response to a commit,\n      merge the changed attributes and relationships into the existing\n      saved data.\n       @method adapterDidCommit\n    */\n\n\n    adapterDidCommit(data) {\n      this.didCleanError();\n\n      var changedKeys = this._recordData.didCommit(data);\n\n      this.send('didCommit');\n      this.updateRecordArrays();\n\n      if (!data) {\n        return;\n      }\n\n      {\n        this._record._notifyProperties(changedKeys);\n      }\n    }\n\n    addErrorMessageToAttribute(attribute, message) {\n      Ember.get(this.getRecord(), 'errors')._add(attribute, message);\n    }\n\n    removeErrorMessageFromAttribute(attribute) {\n      Ember.get(this.getRecord(), 'errors')._remove(attribute);\n    }\n\n    clearErrorMessages() {\n      Ember.get(this.getRecord(), 'errors')._clear();\n    }\n\n    hasErrors() {\n      {\n        var _errors = Ember.get(this.getRecord(), 'errors');\n\n        return _errors.get('length') > 0;\n      }\n    } // FOR USE DURING COMMIT PROCESS\n\n    /*\n      @method adapterDidInvalidate\n      @private\n    */\n\n\n    adapterDidInvalidate(parsedErrors, error) {\n      {\n        var _attribute;\n\n        for (_attribute in parsedErrors) {\n          if (hasOwnProperty.call(parsedErrors, _attribute)) {\n            this.addErrorMessageToAttribute(_attribute, parsedErrors[_attribute]);\n          }\n        }\n\n        this.send('becameInvalid');\n\n        this._recordData.commitWasRejected();\n      }\n    }\n\n    notifyErrorsChange() {\n      var invalidErrors;\n\n      if (this._recordData.getErrors) {\n        invalidErrors = this._recordData.getErrors(this.identifier) || [];\n      } else {\n        return;\n      }\n\n      this.notifyInvalidErrorsChange(invalidErrors);\n    }\n\n    notifyInvalidErrorsChange(jsonApiErrors) {\n      {\n        this.getRecord().invalidErrorsChanged(jsonApiErrors);\n      }\n    }\n    /*\n      @method adapterDidError\n      @private\n    */\n\n\n    adapterDidError(error) {\n      this.send('becameError');\n      this.didError(error);\n\n      this._recordData.commitWasRejected();\n    }\n\n    toString() {\n      return `<${this.modelName}:${this.id}>`;\n    }\n\n    referenceFor(kind, name) {\n      var reference = this.references[name];\n\n      if (!reference) {\n        // TODO IGOR AND DAVID REFACTOR\n        var relationship = relationshipStateFor$1(this, name);\n\n        if ( kind) {\n          var modelName = this.modelName;\n          ( !(!!relationship) && Ember.assert(`There is no ${kind} relationship named '${name}' on a model of modelClass '${modelName}'`, !!relationship));\n          var actualRelationshipKind = relationship.relationshipMeta.kind;\n          ( !(actualRelationshipKind === kind) && Ember.assert(`You tried to get the '${name}' relationship on a '${modelName}' via record.${kind}('${name}'), but the relationship is of kind '${actualRelationshipKind}'. Use record.${actualRelationshipKind}('${name}') instead.`, actualRelationshipKind === kind));\n        }\n\n        var relationshipKind = relationship.relationshipMeta.kind;\n\n        if (relationshipKind === 'belongsTo') {\n          reference = new BelongsToReference(this.store, this, relationship, name);\n        } else if (relationshipKind === 'hasMany') {\n          reference = new HasManyReference(this.store, this, relationship, name);\n        }\n\n        this.references[name] = reference;\n      }\n\n      return reference;\n    }\n\n  }\n\n  function handleCompletedRelationshipRequest(internalModel, key, relationship, value, error) {\n    delete internalModel._relationshipPromisesCache[key];\n    relationship.setShouldForceReload(false);\n\n    if (error) {\n      relationship.setHasFailedLoadAttempt(true);\n      var proxy = internalModel._relationshipProxyCache[key]; // belongsTo relationships are sometimes unloaded\n      // when a load fails, in this case we need\n      // to make sure that we aren't proxying\n      // to destroyed content\n      // for the sync belongsTo reload case there will be no proxy\n      // for the async reload case there will be no proxy if the ui\n      // has never been accessed\n\n      if (proxy && relationship.kind === 'belongsTo') {\n        if (proxy.content && proxy.content.isDestroying) {\n          proxy.set('content', null);\n        }\n      }\n\n      throw error;\n    }\n\n    relationship.setHasFailedLoadAttempt(false); // only set to not stale if no error is thrown\n\n    relationship.setRelationshipIsStale(false);\n    return value;\n  }\n\n  function assertRecordsPassedToHasMany(records) {\n    // TODO only allow native arrays\n    ( !(Array.isArray(records) || Ember.Array.detect(records)) && Ember.assert(`You must pass an array of records to set a hasMany relationship`, Array.isArray(records) || Ember.Array.detect(records)));\n    ( !(function () {\n      return Ember.A(records).every(record => hasOwnProperty.call(record, '_internalModel') === true);\n    }()) && Ember.assert(`All elements of a hasMany relationship must be instances of Model, you passed ${Ember.inspect(records)}`, function () {\n      return Ember.A(records).every(record => hasOwnProperty.call(record, '_internalModel') === true);\n    }()));\n  }\n  function extractRecordDatasFromRecords(records) {\n    return records.map(extractRecordDataFromRecord);\n  }\n  function extractRecordDataFromRecord(recordOrPromiseRecord) {\n    if (!recordOrPromiseRecord) {\n      return null;\n    }\n\n    if (recordOrPromiseRecord.then) {\n      var content = recordOrPromiseRecord.get && recordOrPromiseRecord.get('content');\n      ( !(content !== undefined) && Ember.assert('You passed in a promise that did not originate from an EmberData relationship. You can only pass promises that come from a belongsTo or hasMany relationship to the get call.', content !== undefined));\n      return content ? recordDataFor(content) : null;\n    }\n\n    return recordDataFor(recordOrPromiseRecord);\n  }\n\n  var AvailableShims = new WeakMap();\n  function getShimClass(store, modelName) {\n    var shims = AvailableShims.get(store);\n\n    if (shims === undefined) {\n      shims = Object.create(null);\n      AvailableShims.set(store, shims);\n    }\n\n    var shim = shims[modelName];\n\n    if (shim === undefined) {\n      shim = shims[modelName] = new ShimModelClass(store, modelName);\n    }\n\n    return shim;\n  } // Mimics the static apis of DSModel\n\n  class ShimModelClass {\n    // TODO Maybe expose the class here?\n    constructor(__store, modelName) {\n      this.__store = __store;\n      this.modelName = modelName;\n    }\n\n    get fields() {\n      var attrs = this.__store._attributesDefinitionFor(this.modelName);\n\n      var relationships = this.__store._relationshipsDefinitionFor(this.modelName);\n\n      var fields = new Map();\n      Object.keys(attrs).forEach(key => fields.set(key, 'attribute'));\n      Object.keys(relationships).forEach(key => fields.set(key, relationships[key].kind));\n      return fields;\n    }\n\n    get attributes() {\n      var attrs = this.__store._attributesDefinitionFor(this.modelName);\n\n      return new Map(Object.entries(attrs));\n    }\n\n    get relationshipsByName() {\n      var relationships = this.__store._relationshipsDefinitionFor(this.modelName);\n\n      return new Map(Object.entries(relationships));\n    }\n\n    eachAttribute(callback, binding) {\n      var attrDefs = this.__store._attributesDefinitionFor(this.modelName);\n\n      Object.keys(attrDefs).forEach(key => {\n        callback.call(binding, key, attrDefs[key]);\n      });\n    }\n\n    eachRelationship(callback, binding) {\n      var relationshipDefs = this.__store._relationshipsDefinitionFor(this.modelName);\n\n      Object.keys(relationshipDefs).forEach(key => {\n        callback.call(binding, key, relationshipDefs[key]);\n      });\n    }\n\n    eachTransformedAttribute(callback, binding) {\n      var relationshipDefs = this.__store._relationshipsDefinitionFor(this.modelName);\n\n      Object.keys(relationshipDefs).forEach(key => {\n        if (relationshipDefs[key].type) {\n          callback.call(binding, key, relationshipDefs[key]);\n        }\n      });\n    }\n\n  }\n\n  /**\n    @module @ember-data/store\n  */\n  var INSTANCE_DEPRECATIONS;\n  var lookupDeprecations;\n  var DeprecatedEvented;\n\n  {\n    INSTANCE_DEPRECATIONS = new WeakMap();\n\n    lookupDeprecations = function lookupInstanceDrecations(instance) {\n      var deprecations = INSTANCE_DEPRECATIONS.get(instance);\n\n      if (!deprecations) {\n        deprecations = {};\n        INSTANCE_DEPRECATIONS.set(instance, deprecations);\n      }\n\n      return deprecations;\n    };\n\n    DeprecatedEvented = Ember.Mixin.create(Ember.Evented, {\n      /**\n       * Provides a way to call Evented without logging deprecation warnings\n       * @param {String} name\n       */\n      _has(name) {\n        return Ember.Evented.mixins[0].properties.has.call(this, name);\n      },\n\n      _on() {\n        return Ember.Evented.mixins[0].properties.on.call(this, ...arguments);\n      },\n\n      _deprecateEvented(eventName) {\n        var deprecations = lookupDeprecations(this);\n\n        var _deprecationData = this._getDeprecatedEventedInfo ? `on ${this._getDeprecatedEventedInfo()}` : '';\n\n        var deprecationMessage = _deprecationData ? `Called ${eventName} ${_deprecationData}` : eventName;\n        ( !(deprecations[eventName]) && Ember.deprecate(deprecationMessage, deprecations[eventName], {\n          id: 'ember-data:evented-api-usage',\n          until: '4.0',\n          url: 'https://deprecations.emberjs.com/ember-data/v3.x/#deprecatingrecordlifecycleeventmethods'\n        }));\n        deprecations[eventName] = true;\n      },\n\n      has(name) {\n        this._deprecateEvented(name);\n\n        return this._super(...arguments);\n      },\n\n      off(name, target, method) {\n        this._deprecateEvented(name);\n\n        return this._super(...arguments);\n      },\n\n      on(name, target, method) {\n        this._deprecateEvented(name);\n\n        return this._super(...arguments);\n      },\n\n      one(name, target, method) {\n        this._deprecateEvented(name);\n\n        return this._super(...arguments);\n      },\n\n      trigger(name) {\n        this._deprecateEvented(name);\n\n        return this._super(...arguments);\n      }\n\n    });\n  }\n\n  var DeprecatedEvented$1 =   DeprecatedEvented  ;\n\n  /**\n    @module @ember-data/store\n  */\n\n  /**\n    @class SnapshotRecordArray\n    @private\n    @constructor\n    @param {Array} snapshots An array of snapshots\n    @param {Object} meta\n  */\n  class SnapshotRecordArray {\n    constructor(recordArray, meta, options = {}) {\n      this._snapshots = void 0;\n      this._recordArray = void 0;\n      this._type = void 0;\n      this.length = void 0;\n      this.meta = void 0;\n      this.adapterOptions = void 0;\n      this.include = void 0;\n\n      /**\n        An array of snapshots\n        @private\n        @property _snapshots\n        @type {Array}\n      */\n      this._snapshots = null;\n      /**\n        An array of records\n        @private\n        @property _recordArray\n        @type {Array}\n      */\n\n      this._recordArray = recordArray;\n      /**\n        Number of records in the array\n         Example\n         ```app/adapters/post.js\n        import JSONAPIAdapter from '@ember-data/adapter/json-api';\n         export default JSONAPIAdapter.extend({\n          shouldReloadAll(store, snapshotRecordArray) {\n            return !snapshotRecordArray.length;\n          },\n        });\n        ```\n         @property length\n        @type {Number}\n      */\n\n      this.length = recordArray.get('length');\n      this._type = null;\n      /**\n        Meta objects for the record array.\n         Example\n         ```app/adapters/post.js\n        import JSONAPIAdapter from '@ember-data/adapter/json-api';\n         export default JSONAPIAdapter.extend({\n          shouldReloadAll(store, snapshotRecordArray) {\n            var lastRequestTime = snapshotRecordArray.meta.lastRequestTime;\n            var twentyMinutes = 20 * 60 * 1000;\n            return Date.now() > lastRequestTime + twentyMinutes;\n          },\n        });\n        ```\n         @property meta\n        @type {Object}\n      */\n\n      this.meta = meta;\n      /**\n        A hash of adapter options passed into the store method for this request.\n         Example\n         ```app/adapters/post.js\n        import MyCustomAdapter from './custom-adapter';\n         export default MyCustomAdapter.extend({\n          findAll(store, type, sinceToken, snapshotRecordArray) {\n            if (snapshotRecordArray.adapterOptions.subscribe) {\n              // ...\n            }\n            // ...\n          }\n        });\n        ```\n         @property adapterOptions\n        @type {Object}\n      */\n\n      this.adapterOptions = options.adapterOptions;\n      /**\n        The relationships to include for this request.\n         Example\n         ```app/adapters/application.js\n        import Adapter from '@ember-data/adapter';\n         export default Adapter.extend({\n          findAll(store, type, snapshotRecordArray) {\n            var url = `/${type.modelName}?include=${encodeURIComponent(snapshotRecordArray.include)}`;\n             return fetch(url).then((response) => response.json())\n          }\n        });\n        ```\n         @property include\n        @type {String|Array}\n      */\n\n      this.include = options.include;\n    }\n    /**\n      The type of the underlying records for the snapshots in the array, as a Model\n      @property type\n      @type {Model}\n    */\n\n\n    get type() {\n      return this._type || (this._type = this._recordArray.get('type'));\n    }\n    /**\n      The modelName of the underlying records for the snapshots in the array, as a Model\n      @property type\n      @type {Model}\n    */\n\n\n    get modelName() {\n      return this._recordArray.modelName;\n    }\n    /**\n      Get snapshots of the underlying record array\n       Example\n       ```app/adapters/post.js\n      import JSONAPIAdapter from '@ember-data/adapter/json-api';\n       export default JSONAPIAdapter.extend({\n        shouldReloadAll(store, snapshotArray) {\n          var snapshots = snapshotArray.snapshots();\n           return snapshots.any(function(ticketSnapshot) {\n            var timeDiff = moment().diff(ticketSnapshot.attr('lastAccessedAt'), 'minutes');\n            if (timeDiff > 20) {\n              return true;\n            } else {\n              return false;\n            }\n          });\n        }\n      });\n      ```\n       @method snapshots\n      @return {Array} Array of snapshots\n    */\n\n\n    snapshots() {\n      if (this._snapshots !== null) {\n        return this._snapshots;\n      }\n\n      this._snapshots = this._recordArray._takeSnapshot();\n      return this._snapshots;\n    }\n\n  }\n\n  /**\n    A record array is an array that contains records of a certain modelName. The record\n    array materializes records as needed when they are retrieved for the first\n    time. You should not create record arrays yourself. Instead, an instance of\n    `RecordArray` or its subclasses will be returned by your application's store\n    in response to queries.\n\n    @class RecordArray\n    @extends ArrayProxy\n    @uses Ember.Evented\n  */\n\n  var RecordArray = Ember.ArrayProxy.extend(DeprecatedEvented$1, {\n    init() {\n      this._super(...arguments);\n\n      {\n        this._getDeprecatedEventedInfo = () => `RecordArray containing ${this.modelName}`;\n      }\n      /**\n        The array of client ids backing the record array. When a\n        record is requested from the record array, the record\n        for the client id at the same index is materialized, if\n        necessary, by the store.\n         @property content\n        @private\n        @type Ember.Array\n        */\n\n\n      this.set('content', this.content || null);\n      /**\n      The flag to signal a `RecordArray` is finished loading data.\n       Example\n       ```javascript\n      var people = store.peekAll('person');\n      people.get('isLoaded'); // true\n      ```\n       @property isLoaded\n      @type Boolean\n      */\n\n      this.isLoaded = this.isLoaded || false;\n      /**\n      The flag to signal a `RecordArray` is currently loading data.\n       Example\n       ```javascript\n      var people = store.peekAll('person');\n      people.get('isUpdating'); // false\n      people.update();\n      people.get('isUpdating'); // true\n      ```\n       @property isUpdating\n      @type Boolean\n      */\n\n      this.isUpdating = false;\n      /**\n      The store that created this record array.\n       @property store\n      @private\n      @type Store\n      */\n\n      this.store = this.store || null;\n      this._updatingPromise = null;\n    },\n\n    replace() {\n      throw new Error(`The result of a server query (for all ${this.modelName} types) is immutable. To modify contents, use toArray()`);\n    },\n\n    /**\n     The modelClass represented by this record array.\n      @property type\n     @type Model\n     */\n    type: Ember.computed('modelName', function () {\n      if (!this.modelName) {\n        return null;\n      }\n\n      return this.store.modelFor(this.modelName);\n    }).readOnly(),\n\n    /**\n      Retrieves an object from the content by index.\n       @method objectAtContent\n      @private\n      @param {Number} index\n      @return {Model} record\n    */\n    objectAtContent(index) {\n      var internalModel = Ember.get(this, 'content').objectAt(index);\n      return internalModel && internalModel.getRecord();\n    },\n\n    /**\n      Used to get the latest version of all of the records in this array\n      from the adapter.\n       Example\n       ```javascript\n      var people = store.peekAll('person');\n      people.get('isUpdating'); // false\n       people.update().then(function() {\n        people.get('isUpdating'); // false\n      });\n       people.get('isUpdating'); // true\n      ```\n       @method update\n    */\n    update() {\n      if (Ember.get(this, 'isUpdating')) {\n        return this._updatingPromise;\n      }\n\n      this.set('isUpdating', true);\n\n      var updatingPromise = this._update().finally(() => {\n        this._updatingPromise = null;\n\n        if (this.get('isDestroying') || this.get('isDestroyed')) {\n          return;\n        }\n\n        this.set('isUpdating', false);\n      });\n\n      this._updatingPromise = updatingPromise;\n      return updatingPromise;\n    },\n\n    /*\n      Update this RecordArray and return a promise which resolves once the update\n      is finished.\n     */\n    _update() {\n      return this.store.findAll(this.modelName, {\n        reload: true\n      });\n    },\n\n    /**\n      Adds an internal model to the `RecordArray` without duplicates\n       @method _pushInternalModels\n      @private\n      @param {InternalModel} internalModel\n    */\n    _pushInternalModels(internalModels) {\n      // pushObjects because the internalModels._recordArrays set was already\n      // consulted for inclusion, so addObject and its on .contains call is not\n      // required.\n      Ember.get(this, 'content').pushObjects(internalModels);\n    },\n\n    /**\n      Removes an internalModel to the `RecordArray`.\n       @method removeInternalModel\n      @private\n      @param {InternalModel} internalModel\n    */\n    _removeInternalModels(internalModels) {\n      Ember.get(this, 'content').removeObjects(internalModels);\n    },\n\n    /**\n      Saves all of the records in the `RecordArray`.\n       Example\n       ```javascript\n      var messages = store.peekAll('message');\n      messages.forEach(function(message) {\n        message.set('hasBeenSeen', true);\n      });\n      messages.save();\n      ```\n       @method save\n      @return {PromiseArray} promise\n    */\n    save() {\n      var promiseLabel = `DS: RecordArray#save ${this.modelName}`;\n      var promise = Ember.RSVP.Promise.all(this.invoke('save'), promiseLabel).then(() => this, null, 'DS: RecordArray#save return RecordArray');\n      return PromiseArray.create({\n        promise\n      });\n    },\n\n    _dissociateFromOwnRecords() {\n      this.get('content').forEach(internalModel => {\n        var recordArrays = internalModel.__recordArrays;\n\n        if (recordArrays) {\n          recordArrays.delete(this);\n        }\n      });\n    },\n\n    /**\n      @method _unregisterFromManager\n      @private\n    */\n    _unregisterFromManager() {\n      this.manager.unregisterRecordArray(this);\n    },\n\n    willDestroy() {\n      this._unregisterFromManager();\n\n      this._dissociateFromOwnRecords(); // TODO: we should not do work during destroy:\n      //   * when objects are destroyed, they should simply be left to do\n      //   * if logic errors do to this, that logic needs to be more careful during\n      //    teardown (ember provides isDestroying/isDestroyed) for this reason\n      //   * the exception being: if an dominator has a reference to this object,\n      //     and must be informed to release e.g. e.g. removing itself from th\n      //     recordArrayMananger\n\n\n      Ember.set(this, 'content', null);\n      Ember.set(this, 'length', 0);\n\n      this._super(...arguments);\n    },\n\n    /*\n      @method _createSnapshot\n      @private\n    */\n    _createSnapshot(options) {\n      // this is private for users, but public for ember-data internals\n      return new SnapshotRecordArray(this, this.get('meta'), options);\n    },\n\n    /*\n      @method _takeSnapshot\n      @private\n    */\n    _takeSnapshot() {\n      return Ember.get(this, 'content').map(internalModel => internalModel.createSnapshot());\n    }\n\n  });\n\n  /**\n    @module @ember-data/store\n  */\n\n  /**\n    Represents an ordered list of records whose order and membership is\n    determined by the adapter. For example, a query sent to the adapter\n    may trigger a search on the server, whose results would be loaded\n    into an instance of the `AdapterPopulatedRecordArray`.\n\n    ---\n\n    If you want to update the array and get the latest records from the\n    adapter, you can invoke [`update()`](AdapterPopulatedRecordArray/methods/update?anchor=update):\n\n    Example\n\n    ```javascript\n    // GET /users?isAdmin=true\n    store.query('user', { isAdmin: true }).then(function(admins) {\n\n      admins.then(function() {\n        console.log(admins.get(\"length\")); // 42\n      });\n\n      // somewhere later in the app code, when new admins have been created\n      // in the meantime\n      //\n      // GET /users?isAdmin=true\n      admins.update().then(function() {\n        admins.get('isUpdating'); // false\n        console.log(admins.get(\"length\")); // 123\n      });\n\n      admins.get('isUpdating'); // true\n    }\n    ```\n\n    @class AdapterPopulatedRecordArray\n    @extends RecordArray\n  */\n\n  var AdapterPopulatedRecordArray = RecordArray.extend({\n    init() {\n      // yes we are touching `this` before super, but ArrayProxy has a bug that requires this.\n      this.set('content', this.get('content') || Ember.A());\n\n      this._super(...arguments);\n\n      this.query = this.query || null;\n      this.links = this.links || null;\n\n      {\n        this._getDeprecatedEventedInfo = () => `AdapterPopulatedRecordArray containing ${this.modelName} for query: ${this.query}`;\n      }\n    },\n\n    replace() {\n      throw new Error(`The result of a server query (on ${this.modelName}) is immutable.`);\n    },\n\n    _update() {\n      var store = Ember.get(this, 'store');\n      var query = Ember.get(this, 'query');\n      return store._query(this.modelName, query, this);\n    },\n\n    /**\n      @method _setInternalModels\n      @param {Array} internalModels\n      @param {Object} payload normalized payload\n      @private\n    */\n    _setInternalModels(internalModels, payload) {\n      // TODO: initial load should not cause change events at all, only\n      // subsequent. This requires changing the public api of adapter.query, but\n      // hopefully we can do that soon.\n      this.get('content').setObjects(internalModels);\n      this.setProperties({\n        isLoaded: true,\n        isUpdating: false,\n        meta: Ember.assign({}, payload.meta),\n        links: Ember.assign({}, payload.links)\n      });\n\n      this.manager._associateWithRecordArray(internalModels, this);\n\n      {\n        var _hasDidLoad =  this._has('didLoad') ;\n\n        if (_hasDidLoad) {\n          // TODO: should triggering didLoad event be the last action of the runLoop?\n          Ember.run.once(this, 'trigger', 'didLoad');\n        }\n      }\n    }\n\n  });\n\n  var emberRun$1 = Ember.run.backburner;\n  /**\n    @class RecordArrayManager\n    @private\n  */\n\n  class RecordArrayManager {\n    constructor(options) {\n      this.store = options.store;\n      this.isDestroying = false;\n      this.isDestroyed = false;\n      this._liveRecordArrays = Object.create(null);\n      this._pending = Object.create(null);\n      this._adapterPopulatedRecordArrays = [];\n    }\n\n    recordDidChange(internalModel) {\n      var modelName = internalModel.modelName;\n\n      if (internalModel._pendingRecordArrayManagerFlush) {\n        return;\n      }\n\n      internalModel._pendingRecordArrayManagerFlush = true;\n      var pending = this._pending;\n      var models = pending[modelName] = pending[modelName] || [];\n\n      if (models.push(internalModel) !== 1) {\n        return;\n      }\n\n      emberRun$1.schedule('actions', this, this._flush);\n    }\n\n    _flushPendingInternalModelsForModelName(modelName, internalModels) {\n      var modelsToRemove = [];\n\n      for (var j = 0; j < internalModels.length; j++) {\n        var internalModel = internalModels[j]; // mark internalModels, so they can once again be processed by the\n        // recordArrayManager\n\n        internalModel._pendingRecordArrayManagerFlush = false; // build up a set of models to ensure we have purged correctly;\n\n        if (internalModel.isHiddenFromRecordArrays()) {\n          modelsToRemove.push(internalModel);\n        }\n      }\n\n      var array = this._liveRecordArrays[modelName];\n\n      if (array) {\n        // TODO: skip if it only changed\n        // process liveRecordArrays\n        updateLiveRecordArray(array, internalModels);\n      } // process adapterPopulatedRecordArrays\n\n\n      if (modelsToRemove.length > 0) {\n        removeFromAdapterPopulatedRecordArrays(modelsToRemove);\n      }\n    }\n\n    _flush() {\n      var pending = this._pending;\n      this._pending = Object.create(null);\n\n      for (var modelName in pending) {\n        this._flushPendingInternalModelsForModelName(modelName, pending[modelName]);\n      }\n    }\n\n    _syncLiveRecordArray(array, modelName) {\n      ( !(typeof modelName === 'string') && Ember.assert(`recordArrayManger.syncLiveRecordArray expects modelName not modelClass as the second param`, typeof modelName === 'string'));\n      var pending = this._pending[modelName];\n      var hasPendingChanges = Array.isArray(pending);\n      var hasNoPotentialDeletions = !hasPendingChanges || pending.length === 0;\n      var map = internalModelFactoryFor(this.store).modelMapFor(modelName);\n      var hasNoInsertionsOrRemovals = Ember.get(map, 'length') === Ember.get(array, 'length');\n      /*\n        Ideally the recordArrayManager has knowledge of the changes to be applied to\n        liveRecordArrays, and is capable of strategically flushing those changes and applying\n        small diffs if desired.  However, until we've refactored recordArrayManager, this dirty\n        check prevents us from unnecessarily wiping out live record arrays returned by peekAll.\n        */\n\n      if (hasNoPotentialDeletions && hasNoInsertionsOrRemovals) {\n        return;\n      }\n\n      if (hasPendingChanges) {\n        this._flushPendingInternalModelsForModelName(modelName, pending);\n\n        delete this._pending[modelName];\n      }\n\n      var internalModels = this._visibleInternalModelsByType(modelName);\n\n      var modelsToAdd = [];\n\n      for (var i = 0; i < internalModels.length; i++) {\n        var internalModel = internalModels[i];\n        var recordArrays = internalModel._recordArrays;\n\n        if (recordArrays.has(array) === false) {\n          recordArrays.add(array);\n          modelsToAdd.push(internalModel);\n        }\n      }\n\n      if (modelsToAdd.length) {\n        array._pushInternalModels(modelsToAdd);\n      }\n    }\n\n    _didUpdateAll(modelName) {\n      var recordArray = this._liveRecordArrays[modelName];\n\n      if (recordArray) {\n        Ember.set(recordArray, 'isUpdating', false);\n      }\n    }\n    /**\n      Get the `RecordArray` for a modelName, which contains all loaded records of\n      given modelName.\n       @method liveRecordArrayFor\n      @param {String} modelName\n      @return {RecordArray}\n    */\n\n\n    liveRecordArrayFor(modelName) {\n      ( !(typeof modelName === 'string') && Ember.assert(`recordArrayManger.liveRecordArrayFor expects modelName not modelClass as the param`, typeof modelName === 'string'));\n      var array = this._liveRecordArrays[modelName];\n\n      if (array) {\n        // if the array already exists, synchronize\n        this._syncLiveRecordArray(array, modelName);\n      } else {\n        // if the array is being newly created merely create it with its initial\n        // content already set. This prevents unneeded change events.\n        var internalModels = this._visibleInternalModelsByType(modelName);\n\n        array = this.createRecordArray(modelName, internalModels);\n        this._liveRecordArrays[modelName] = array;\n      }\n\n      return array;\n    }\n\n    _visibleInternalModelsByType(modelName) {\n      var all = internalModelFactoryFor(this.store).modelMapFor(modelName)._models;\n\n      var visible = [];\n\n      for (var i = 0; i < all.length; i++) {\n        var model = all[i];\n\n        if (model.isHiddenFromRecordArrays() === false) {\n          visible.push(model);\n        }\n      }\n\n      return visible;\n    }\n    /**\n      Create a `RecordArray` for a modelName.\n       @method createRecordArray\n      @param {String} modelName\n      @param {Array} _content (optional|private)\n      @return {RecordArray}\n    */\n\n\n    createRecordArray(modelName, content) {\n      ( !(typeof modelName === 'string') && Ember.assert(`recordArrayManger.createRecordArray expects modelName not modelClass as the param`, typeof modelName === 'string'));\n      var array = RecordArray.create({\n        modelName,\n        content: Ember.A(content || []),\n        store: this.store,\n        isLoaded: true,\n        manager: this\n      });\n\n      if (Array.isArray(content)) {\n        associateWithRecordArray(content, array);\n      }\n\n      return array;\n    }\n    /**\n      Create a `AdapterPopulatedRecordArray` for a modelName with given query.\n       @method createAdapterPopulatedRecordArray\n      @param {String} modelName\n      @param {Object} query\n      @return {AdapterPopulatedRecordArray}\n    */\n\n\n    createAdapterPopulatedRecordArray(modelName, query, internalModels, payload) {\n      ( !(typeof modelName === 'string') && Ember.assert(`recordArrayManger.createAdapterPopulatedRecordArray expects modelName not modelClass as the first param, received ${modelName}`, typeof modelName === 'string'));\n      var array;\n\n      if (Array.isArray(internalModels)) {\n        array = AdapterPopulatedRecordArray.create({\n          modelName,\n          query: query,\n          content: Ember.A(internalModels),\n          store: this.store,\n          manager: this,\n          isLoaded: true,\n          isUpdating: false,\n          meta: Ember.assign({}, payload.meta),\n          links: Ember.assign({}, payload.links)\n        });\n        associateWithRecordArray(internalModels, array);\n      } else {\n        array = AdapterPopulatedRecordArray.create({\n          modelName,\n          query: query,\n          content: Ember.A(),\n          store: this.store,\n          manager: this\n        });\n      }\n\n      this._adapterPopulatedRecordArrays.push(array);\n\n      return array;\n    }\n    /**\n      Unregister a RecordArray.\n      So manager will not update this array.\n       @method unregisterRecordArray\n      @param {RecordArray} array\n    */\n\n\n    unregisterRecordArray(array) {\n      var modelName = array.modelName; // remove from adapter populated record array\n\n      var removedFromAdapterPopulated = remove(this._adapterPopulatedRecordArrays, array);\n\n      if (!removedFromAdapterPopulated) {\n        var liveRecordArrayForType = this._liveRecordArrays[modelName]; // unregister live record array\n\n        if (liveRecordArrayForType) {\n          if (array === liveRecordArrayForType) {\n            delete this._liveRecordArrays[modelName];\n          }\n        }\n      }\n    }\n\n    _associateWithRecordArray(internalModels, array) {\n      associateWithRecordArray(internalModels, array);\n    }\n\n    willDestroy() {\n      Object.keys(this._liveRecordArrays).forEach(modelName => this._liveRecordArrays[modelName].destroy());\n\n      this._adapterPopulatedRecordArrays.forEach(destroy);\n\n      this.isDestroyed = true;\n    }\n\n    destroy() {\n      this.isDestroying = true;\n      emberRun$1.schedule('actions', this, this.willDestroy);\n    }\n\n  }\n\n  function destroy(entry) {\n    entry.destroy();\n  }\n\n  function remove(array, item) {\n    var index = array.indexOf(item);\n\n    if (index !== -1) {\n      array.splice(index, 1);\n      return true;\n    }\n\n    return false;\n  }\n\n  function updateLiveRecordArray(array, internalModels) {\n    var modelsToAdd = [];\n    var modelsToRemove = [];\n\n    for (var i = 0; i < internalModels.length; i++) {\n      var internalModel = internalModels[i];\n      var isDeleted = internalModel.isHiddenFromRecordArrays();\n      var recordArrays = internalModel._recordArrays;\n\n      if (!isDeleted && !internalModel.isEmpty()) {\n        if (!recordArrays.has(array)) {\n          modelsToAdd.push(internalModel);\n          recordArrays.add(array);\n        }\n      }\n\n      if (isDeleted) {\n        modelsToRemove.push(internalModel);\n        recordArrays.delete(array);\n      }\n    }\n\n    if (modelsToAdd.length > 0) {\n      array._pushInternalModels(modelsToAdd);\n    }\n\n    if (modelsToRemove.length > 0) {\n      array._removeInternalModels(modelsToRemove);\n    }\n  }\n\n  function removeFromAdapterPopulatedRecordArrays(internalModels) {\n    for (var i = 0; i < internalModels.length; i++) {\n      removeFromAll(internalModels[i]);\n    }\n  }\n\n  function removeFromAll(internalModel) {\n    var recordArrays = internalModel._recordArrays;\n    recordArrays.forEach(function (recordArray) {\n      recordArray._removeInternalModels([internalModel]);\n    });\n    recordArrays.clear();\n  }\n\n  function associateWithRecordArray(internalModels, array) {\n    for (var i = 0, l = internalModels.length; i < l; i++) {\n      var internalModel = internalModels[i];\n\n      internalModel._recordArrays.add(array);\n    }\n  }\n\n  /**\n    @module @ember-data/store\n  */\n\n  function payloadIsNotBlank(adapterPayload) {\n    if (Array.isArray(adapterPayload)) {\n      return true;\n    } else {\n      return Object.keys(adapterPayload || {}).length;\n    }\n  }\n\n  function _find(adapter, store, modelClass, id, internalModel, options) {\n\n    var snapshot = internalModel.createSnapshot(options);\n    var {\n      modelName\n    } = internalModel;\n    var promise = Ember.RSVP.Promise.resolve().then(() => {\n      return adapter.findRecord(store, modelClass, id, snapshot);\n    });\n    var label = `DS: Handle Adapter#findRecord of '${modelName}' with id: '${id}'`;\n    var {\n      identifier\n    } = internalModel;\n    promise = guardDestroyedStore(promise, store, label);\n    return promise.then(adapterPayload => {\n      ( !(payloadIsNotBlank(adapterPayload)) && Ember.assert(`You made a 'findRecord' request for a '${modelName}' with id '${id}', but the adapter's response did not have any data`, payloadIsNotBlank(adapterPayload)));\n      var serializer = store.serializerFor(modelName);\n      var payload = normalizeResponseHelper(serializer, store, modelClass, adapterPayload, id, 'findRecord');\n      ( !(!Array.isArray(payload.data)) && Ember.assert(`Ember Data expected the primary data returned from a 'findRecord' response to be an object but instead it found an array.`, !Array.isArray(payload.data)));\n      ( Ember.warn(`You requested a record of type '${modelName}' with id '${id}' but the adapter returned a payload with primary data having an id of '${payload.data.id}'. Use 'store.findRecord()' when the requested id is the same as the one returned by the adapter. In other cases use 'store.queryRecord()' instead.`, coerceId(payload.data.id) === coerceId(id), {\n        id: 'ds.store.findRecord.id-mismatch'\n      })); // ensure that regardless of id returned we assign to the correct record\n\n      payload.data.lid = identifier.lid;\n      return store._push(payload);\n    }, error => {\n      internalModel.notFound();\n\n      if (internalModel.isEmpty()) {\n        internalModel.unloadRecord();\n      }\n\n      throw error;\n    }, `DS: Extract payload of '${modelName}'`);\n  }\n  function _findMany(adapter, store, modelName, ids, internalModels, optionsMap) {\n    var snapshots = Ember.A(internalModels.map(internalModel => internalModel.createSnapshot(optionsMap.get(internalModel))));\n    var modelClass = store.modelFor(modelName); // `adapter.findMany` gets the modelClass still\n\n    var promise = adapter.findMany(store, modelClass, ids, snapshots);\n    var label = `DS: Handle Adapter#findMany of '${modelName}'`;\n\n    if (promise === undefined) {\n      throw new Error('adapter.findMany returned undefined, this was very likely a mistake');\n    }\n\n    promise = guardDestroyedStore(promise, store, label);\n    return promise.then(adapterPayload => {\n      ( !(payloadIsNotBlank(adapterPayload)) && Ember.assert(`You made a 'findMany' request for '${modelName}' records with ids '[${ids}]', but the adapter's response did not have any data`, payloadIsNotBlank(adapterPayload)));\n      var serializer = store.serializerFor(modelName);\n      var payload = normalizeResponseHelper(serializer, store, modelClass, adapterPayload, null, 'findMany');\n      return store._push(payload);\n    }, null, `DS: Extract payload of ${modelName}`);\n  }\n\n  function iterateData(data, fn) {\n    if (Array.isArray(data)) {\n      return data.map(fn);\n    } else {\n      return fn(data);\n    }\n  } // sync\n  // iterate over records in payload.data\n  // for each record\n  //   assert that record.relationships[inverse] is either undefined (so we can fix it)\n  //     or provide a data: {id, type} that matches the record that requested it\n  //   return the relationship data for the parent\n\n\n  function syncRelationshipDataFromLink(store, payload, parentInternalModel, relationship) {\n    // ensure the right hand side (incoming payload) points to the parent record that\n    // requested this relationship\n    var relationshipData = iterateData(payload.data, (data, index) => {\n      var {\n        id,\n        type\n      } = data;\n      ensureRelationshipIsSetToParent(data, parentInternalModel, store, relationship, index);\n      return {\n        id,\n        type\n      };\n    }); // now, push the left hand side (the parent record) to ensure things are in sync, since\n    // the payload will be pushed with store._push\n\n    var parentPayload = {\n      id: parentInternalModel.id,\n      type: parentInternalModel.modelName,\n      relationships: {\n        [relationship.key]: {\n          meta: payload.meta,\n          links: payload.links,\n          data: relationshipData\n        }\n      }\n    };\n\n    if (!Array.isArray(payload.included)) {\n      payload.included = [];\n    }\n\n    payload.included.push(parentPayload);\n    return payload;\n  }\n\n  function ensureRelationshipIsSetToParent(payload, parentInternalModel, store, parentRelationship, index) {\n    var {\n      id,\n      type\n    } = payload;\n\n    if (!payload.relationships) {\n      payload.relationships = {};\n    }\n\n    var {\n      relationships\n    } = payload;\n    var inverse = getInverse(store, parentInternalModel, parentRelationship, type);\n\n    if (inverse) {\n      var {\n        inverseKey,\n        kind\n      } = inverse;\n      var relationshipData = relationships[inverseKey] && relationships[inverseKey].data;\n\n      if ( typeof relationshipData !== 'undefined' && !relationshipDataPointsToParent(relationshipData, parentInternalModel)) {\n        var inspect = function inspect(thing) {\n          return `'${JSON.stringify(thing)}'`;\n        };\n\n        var quotedType = inspect(type);\n        var quotedInverse = inspect(inverseKey);\n        var expected = inspect({\n          id: parentInternalModel.id,\n          type: parentInternalModel.modelName\n        });\n        var expectedModel = `${parentInternalModel.modelName}:${parentInternalModel.id}`;\n        var got = inspect(relationshipData);\n        var prefix = typeof index === 'number' ? `data[${index}]` : `data`;\n        var path = `${prefix}.relationships.${inverseKey}.data`;\n        var other = relationshipData ? `<${relationshipData.type}:${relationshipData.id}>` : null;\n        var relationshipFetched = `${expectedModel}.${parentRelationship.kind}(\"${parentRelationship.name}\")`;\n        var includedRecord = `<${type}:${id}>`;\n        var message = [`Encountered mismatched relationship: Ember Data expected ${path} in the payload from ${relationshipFetched} to include ${expected} but got ${got} instead.\\n`, `The ${includedRecord} record loaded at ${prefix} in the payload specified ${other} as its ${quotedInverse}, but should have specified ${expectedModel} (the record the relationship is being loaded from) as its ${quotedInverse} instead.`, `This could mean that the response for ${relationshipFetched} may have accidentally returned ${quotedType} records that aren't related to ${expectedModel} and could be related to a different ${parentInternalModel.modelName} record instead.`, `Ember Data has corrected the ${includedRecord} record's ${quotedInverse} relationship to ${expectedModel} so that ${relationshipFetched} will include ${includedRecord}.`, `Please update the response from the server or change your serializer to either ensure that the response for only includes ${quotedType} records that specify ${expectedModel} as their ${quotedInverse}, or omit the ${quotedInverse} relationship from the response.`].join('\\n'); // this should eventually throw instead of deprecating.\n\n        ( Ember.deprecate(message + '\\n', false, {\n          id: 'mismatched-inverse-relationship-data-from-payload',\n          until: '3.8'\n        }));\n      }\n\n      if (kind !== 'hasMany' || typeof relationshipData !== 'undefined') {\n        relationships[inverseKey] = relationships[inverseKey] || {};\n        relationships[inverseKey].data = fixRelationshipData(relationshipData, kind, parentInternalModel);\n      }\n    }\n  }\n\n  function getInverse(store, parentInternalModel, parentRelationship, type) {\n    return recordDataFindInverseRelationshipInfo(store, parentInternalModel, parentRelationship, type);\n  }\n\n  function recordDataFindInverseRelationshipInfo({\n    _storeWrapper\n  }, parentInternalModel, parentRelationship, type) {\n    var {\n      name: lhs_relationshipName\n    } = parentRelationship;\n    var {\n      modelName\n    } = parentInternalModel;\n\n    var inverseKey = _storeWrapper.inverseForRelationship(modelName, lhs_relationshipName);\n\n    if (inverseKey) {\n      var {\n        meta: {\n          kind\n        }\n      } = _storeWrapper.relationshipsDefinitionFor(type)[inverseKey];\n\n      return {\n        inverseKey,\n        kind\n      };\n    }\n  }\n\n  function relationshipDataPointsToParent(relationshipData, internalModel) {\n    if (relationshipData === null) {\n      return false;\n    }\n\n    if (Array.isArray(relationshipData)) {\n      if (relationshipData.length === 0) {\n        return false;\n      }\n\n      for (var i = 0; i < relationshipData.length; i++) {\n        var entry = relationshipData[i];\n\n        if (validateRelationshipEntry(entry, internalModel)) {\n          return true;\n        }\n      }\n    } else {\n      return validateRelationshipEntry(relationshipData, internalModel);\n    }\n\n    return false;\n  }\n\n  function fixRelationshipData(relationshipData, relationshipKind, {\n    id,\n    modelName\n  }) {\n    var parentRelationshipData = {\n      id,\n      type: modelName\n    };\n    var payload;\n\n    if (relationshipKind === 'hasMany') {\n      payload = relationshipData || [];\n      payload.push(parentRelationshipData);\n    } else {\n      payload = relationshipData || {};\n      Ember.assign(payload, parentRelationshipData);\n    }\n\n    return payload;\n  }\n\n  function validateRelationshipEntry({\n    id\n  }, {\n    id: parentModelID\n  }) {\n    return id && id.toString() === parentModelID;\n  }\n\n  function _findHasMany(adapter, store, internalModel, link, relationship, options) {\n    var snapshot = internalModel.createSnapshot(options);\n    var modelClass = store.modelFor(relationship.type);\n    var useLink = !link || typeof link === 'string';\n    var relatedLink = useLink ? link : link.href;\n    var promise = adapter.findHasMany(store, snapshot, relatedLink, relationship);\n    var label = `DS: Handle Adapter#findHasMany of '${internalModel.modelName}' : '${relationship.type}'`;\n    promise = guardDestroyedStore(promise, store, label);\n    promise = _guard(promise, _bind(_objectIsAlive, internalModel));\n    return promise.then(adapterPayload => {\n      ( !(payloadIsNotBlank(adapterPayload)) && Ember.assert(`You made a 'findHasMany' request for a ${internalModel.modelName}'s '${relationship.key}' relationship, using link '${link}' , but the adapter's response did not have any data`, payloadIsNotBlank(adapterPayload)));\n      var serializer = store.serializerFor(relationship.type);\n      var payload = normalizeResponseHelper(serializer, store, modelClass, adapterPayload, null, 'findHasMany');\n      payload = syncRelationshipDataFromLink(store, payload, internalModel, relationship);\n\n      var internalModelArray = store._push(payload);\n\n      return internalModelArray;\n    }, null, `DS: Extract payload of '${internalModel.modelName}' : hasMany '${relationship.type}'`);\n  }\n  function _findBelongsTo(adapter, store, internalModel, link, relationship, options) {\n    var snapshot = internalModel.createSnapshot(options);\n    var modelClass = store.modelFor(relationship.type);\n    var useLink = !link || typeof link === 'string';\n    var relatedLink = useLink ? link : link.href;\n    var promise = adapter.findBelongsTo(store, snapshot, relatedLink, relationship);\n    var label = `DS: Handle Adapter#findBelongsTo of ${internalModel.modelName} : ${relationship.type}`;\n    promise = guardDestroyedStore(promise, store, label);\n    promise = _guard(promise, _bind(_objectIsAlive, internalModel));\n    return promise.then(adapterPayload => {\n      var serializer = store.serializerFor(relationship.type);\n      var payload = normalizeResponseHelper(serializer, store, modelClass, adapterPayload, null, 'findBelongsTo');\n\n      if (!payload.data) {\n        return null;\n      }\n\n      payload = syncRelationshipDataFromLink(store, payload, internalModel, relationship);\n      return store._push(payload);\n    }, null, `DS: Extract payload of ${internalModel.modelName} : ${relationship.type}`);\n  }\n  function _findAll(adapter, store, modelName, options) {\n    var modelClass = store.modelFor(modelName); // adapter.findAll depends on the class\n\n    var recordArray = store.peekAll(modelName);\n\n    var snapshotArray = recordArray._createSnapshot(options);\n\n    var promise = Ember.RSVP.Promise.resolve().then(() => adapter.findAll(store, modelClass, null, snapshotArray));\n    var label = 'DS: Handle Adapter#findAll of ' + modelClass;\n    promise = guardDestroyedStore(promise, store, label);\n    return promise.then(adapterPayload => {\n      ( !(payloadIsNotBlank(adapterPayload)) && Ember.assert(`You made a 'findAll' request for '${modelName}' records, but the adapter's response did not have any data`, payloadIsNotBlank(adapterPayload)));\n      var serializer = store.serializerFor(modelName);\n      var payload = normalizeResponseHelper(serializer, store, modelClass, adapterPayload, null, 'findAll');\n\n      store._push(payload);\n\n      store._didUpdateAll(modelName);\n\n      return recordArray;\n    }, null, 'DS: Extract payload of findAll ${modelName}');\n  }\n  function _query(adapter, store, modelName, query, recordArray, options) {\n    var modelClass = store.modelFor(modelName); // adapter.query needs the class\n\n    recordArray = recordArray || store.recordArrayManager.createAdapterPopulatedRecordArray(modelName, query);\n    var promise = Ember.RSVP.Promise.resolve().then(() => adapter.query(store, modelClass, query, recordArray, options));\n    var label = `DS: Handle Adapter#query of ${modelName}`;\n    promise = guardDestroyedStore(promise, store, label);\n    return promise.then(adapterPayload => {\n      var serializer = store.serializerFor(modelName);\n      var payload = normalizeResponseHelper(serializer, store, modelClass, adapterPayload, null, 'query');\n\n      var internalModels = store._push(payload);\n\n      ( !(Array.isArray(internalModels)) && Ember.assert('The response to store.query is expected to be an array but it was a single record. Please wrap your response in an array or use `store.queryRecord` to query for a single record.', Array.isArray(internalModels)));\n\n      if (recordArray) {\n        recordArray._setInternalModels(internalModels, payload);\n      } else {\n        recordArray = store.recordArrayManager.createAdapterPopulatedRecordArray(modelName, query, internalModels, payload);\n      }\n\n      return recordArray;\n    }, null, `DS: Extract payload of query ${modelName}`);\n  }\n  function _queryRecord(adapter, store, modelName, query, options) {\n    var modelClass = store.modelFor(modelName); // adapter.queryRecord needs the class\n\n    var promise = Ember.RSVP.Promise.resolve().then(() => adapter.queryRecord(store, modelClass, query, options));\n    var label = `DS: Handle Adapter#queryRecord of ${modelName}`;\n    promise = guardDestroyedStore(promise, store, label);\n    return promise.then(adapterPayload => {\n      var serializer = store.serializerFor(modelName);\n      var payload = normalizeResponseHelper(serializer, store, modelClass, adapterPayload, null, 'queryRecord');\n      ( !(!Array.isArray(payload.data)) && Ember.assert(`Expected the primary data returned by the serializer for a 'queryRecord' response to be a single object or null but instead it was an array.`, !Array.isArray(payload.data), {\n        id: 'ds.store.queryRecord-array-response'\n      }));\n      return store._push(payload);\n    }, null, `DS: Extract payload of queryRecord ${modelName}`);\n  }\n\n  /**\n    @module @ember-data/store\n  */\n\n  /**\n   * Use this brand to assign a string key to an interface\n   * for mapping the interface to a tightly coupled internal\n   * class implementation.\n   *\n   * This allows us to expose the interface publicly but\n   * seamlessly upgrade these interfaces for our own use\n   * internally when internal methods and properties are\n   * needed.\n   *\n   * @internal\n   */\n\n  var BRAND_SYMBOL = symbol('DEBUG-ts-brand');\n\n  /**\n    @module @ember-data/store\n  */\n\n  /**\n   * Casts a public interface to the matching internal class implementation\n   *\n   * @internal\n   */\n  function upgradeForInternal(external) {\n    return external;\n  }\n\n  class RecordDataStoreWrapper {\n    constructor(_store) {\n      this._store = _store;\n      this[BRAND_SYMBOL] = void 0;\n      this._willUpdateManyArrays = void 0;\n      this._pendingManyArrayUpdates = void 0;\n      this._willUpdateManyArrays = false;\n      this._pendingManyArrayUpdates = [];\n    }\n\n    get identifierCache() {\n      return identifierCacheFor(this._store);\n    }\n    /**\n     * Exists so that DefaultRecordData can check for model types\n     * in DEBUG for relationships. Should be refactored away.\n     *\n     * @internal\n     */\n\n\n    _hasModelFor(type) {\n      return this._store._hasModelFor(type);\n    }\n    /**\n     * @internal\n     */\n\n\n    _scheduleManyArrayUpdate(identifier, key) {\n      var pending = this._pendingManyArrayUpdates = this._pendingManyArrayUpdates || [];\n      pending.push(identifier, key);\n\n      if (this._willUpdateManyArrays === true) {\n        return;\n      }\n\n      this._willUpdateManyArrays = true;\n      var backburner = this._store._backburner;\n      backburner.join(() => {\n        backburner.schedule('syncRelationships', this, this._flushPendingManyArrayUpdates);\n      });\n    }\n\n    notifyErrorsChange(type, id, lid) {\n      var resource = constructResource(type, id, lid);\n      var identifier = identifierCacheFor(this._store).getOrCreateRecordIdentifier(resource);\n      var internalModel = internalModelFactoryFor(this._store).peek(identifier);\n\n      if (internalModel) {\n        internalModel.notifyErrorsChange();\n      }\n    }\n\n    _flushPendingManyArrayUpdates() {\n      if (this._willUpdateManyArrays === false) {\n        return;\n      }\n\n      var pending = this._pendingManyArrayUpdates;\n      this._pendingManyArrayUpdates = [];\n      this._willUpdateManyArrays = false;\n      var factory = internalModelFactoryFor(this._store);\n\n      for (var i = 0; i < pending.length; i += 2) {\n        var identifier = pending[i];\n        var _key = pending[i + 1];\n        var internalModel = factory.peek(identifier);\n\n        if (internalModel) {\n          internalModel.notifyHasManyChange(_key);\n        }\n      }\n    }\n\n    attributesDefinitionFor(type) {\n      return this._store._attributesDefinitionFor(type);\n    }\n\n    relationshipsDefinitionFor(type) {\n      return this._store._relationshipsDefinitionFor(type);\n    }\n\n    inverseForRelationship(type, key) {\n      var modelClass = this._store.modelFor(type);\n\n      var definition = upgradeForInternal(this.relationshipsDefinitionFor(type)[key]);\n\n      {\n        return definition._inverseKey(this._store, modelClass);\n      }\n    }\n\n    inverseIsAsyncForRelationship(type, key) {\n      var modelClass = this._store.modelFor(type);\n\n      var definition = upgradeForInternal(this.relationshipsDefinitionFor(type)[key]);\n\n      {\n        return definition._inverseIsAsync(this._store, modelClass);\n      }\n    }\n\n    notifyPropertyChange(type, id, lid, key) {\n      var resource = constructResource(type, id, lid);\n      var identifier = identifierCacheFor(this._store).getOrCreateRecordIdentifier(resource);\n      var internalModel = internalModelFactoryFor(this._store).peek(identifier);\n\n      if (internalModel) {\n        internalModel.notifyPropertyChange(key);\n      }\n    }\n\n    notifyHasManyChange(type, id, lid, key) {\n      var resource = constructResource(type, id, lid);\n      var identifier = identifierCacheFor(this._store).getOrCreateRecordIdentifier(resource);\n\n      this._scheduleManyArrayUpdate(identifier, key);\n    }\n\n    notifyBelongsToChange(type, id, lid, key) {\n      var resource = constructResource(type, id, lid);\n      var identifier = identifierCacheFor(this._store).getOrCreateRecordIdentifier(resource);\n      var internalModel = internalModelFactoryFor(this._store).peek(identifier);\n\n      if (internalModel) {\n        internalModel.notifyBelongsToChange(key);\n      }\n    }\n\n    notifyStateChange(type, id, lid, key) {\n      var resource = constructResource(type, id, lid);\n      var identifier = identifierCacheFor(this._store).getOrCreateRecordIdentifier(resource);\n      var internalModel = internalModelFactoryFor(this._store).peek(identifier);\n\n      if (internalModel) {\n        internalModel.notifyStateChange(key);\n      }\n    }\n\n    recordDataFor(type, id, lid) {\n      var identifier;\n      var isCreate = false;\n\n      if (!id && !lid) {\n        isCreate = true;\n        identifier = {\n          type\n        };\n      } else {\n        var resource = constructResource(type, id, lid);\n        identifier = identifierCacheFor(this._store).getOrCreateRecordIdentifier(resource);\n      }\n\n      return this._store.recordDataFor(identifier, isCreate);\n    }\n\n    setRecordId(type, id, lid) {\n      this._store.setRecordId(type, id, lid);\n    }\n\n    isRecordInUse(type, id, lid) {\n      var resource = constructResource(type, id, lid);\n      var identifier = identifierCacheFor(this._store).getOrCreateRecordIdentifier(resource);\n      var internalModel = internalModelFactoryFor(this._store).peek(identifier);\n\n      if (!internalModel) {\n        return false;\n      }\n\n      return internalModel.isRecordInUse();\n    }\n\n    disconnectRecord(type, id, lid) {\n      var resource = constructResource(type, id, lid);\n      var identifier = identifierCacheFor(this._store).getOrCreateRecordIdentifier(resource);\n      var internalModel = internalModelFactoryFor(this._store).peek(identifier);\n\n      if (internalModel) {\n        internalModel.destroyFromRecordData();\n      }\n    }\n\n  }\n\n  var _RecordData;\n\n  var emberRun$2 = Ember.run.backburner;\n  var {\n    ENV\n  } = Ember;\n\n  function freeze$1(obj) {\n    if (typeof Object.freeze === 'function') {\n      return Object.freeze(obj);\n    }\n\n    return obj;\n  }\n\n  function deprecateTestRegistration(factoryType, factoryName) {\n    ( Ember.deprecate(`You looked up the ${factoryType} \"${factoryName}\" but it was not found. Likely this means you are using a legacy ember-qunit moduleFor helper. Add \"needs: ['${factoryType}:${factoryName}']\", \"integration: true\", or refactor to modern syntax to resolve this deprecation.`, false, {\n      id: 'ember-data:-legacy-test-registrations',\n      until: '3.17'\n    }));\n  }\n  /**\n    The store contains all of the data for records loaded from the server.\n    It is also responsible for creating instances of `Model` that wrap\n    the individual data for a record, so that they can be bound to in your\n    Handlebars templates.\n\n    Define your application's store like this:\n\n    ```app/services/store.js\n    import Store from '@ember-data/store';\n\n    export default Store.extend({\n    });\n    ```\n\n    Most Ember.js applications will only have a single `Store` that is\n    automatically created by their `Ember.Application`.\n\n    You can retrieve models from the store in several ways. To retrieve a record\n    for a specific id, use `Store`'s `findRecord()` method:\n\n    ```javascript\n    store.findRecord('person', 123).then(function (person) {\n    });\n    ```\n\n    By default, the store will talk to your backend using a standard\n    REST mechanism. You can customize how the store talks to your\n    backend by specifying a custom adapter:\n\n    ```app/adapters/application.js\n    import Adapter from '@ember-data/adapter';\n\n    export default Adapter.extend({\n    });\n    ```\n\n    You can learn more about writing a custom adapter by reading the `Adapter`\n    documentation.\n\n    ### Store createRecord() vs. push() vs. pushPayload()\n\n    The store provides multiple ways to create new record objects. They have\n    some subtle differences in their use which are detailed below:\n\n    [createRecord](Store/methods/createRecord?anchor=createRecord) is used for creating new\n    records on the client side. This will return a new record in the\n    `created.uncommitted` state. In order to persist this record to the\n    backend, you will need to call `record.save()`.\n\n    [push](Store/methods/push?anchor=push) is used to notify Ember Data's store of new or\n    updated records that exist in the backend. This will return a record\n    in the `loaded.saved` state. The primary use-case for `store#push` is\n    to notify Ember Data about record updates (full or partial) that happen\n    outside of the normal adapter methods (for example\n    [SSE](http://dev.w3.org/html5/eventsource/) or [Web\n    Sockets](http://www.w3.org/TR/2009/WD-websockets-20091222/)).\n\n    [pushPayload](Store/methods/pushPayload?anchor=pushPayload) is a convenience wrapper for\n    `store#push` that will deserialize payloads if the\n    Serializer implements a `pushPayload` method.\n\n    Note: When creating a new record using any of the above methods\n    Ember Data will update `RecordArray`s such as those returned by\n    `store#peekAll()` or `store#findAll()`. This means any\n    data bindings or computed properties that depend on the RecordArray\n    will automatically be synced to include the new or updated record\n    values.\n\n    @class Store\n    @extends Ember.Service\n  */\n\n\n  class CoreStore extends Ember.Service {\n    /**\n     * EmberData specific backburner instance\n     */\n\n    /*\n      Ember Data uses several specialized micro-queues for organizing\n      and coalescing similar async work.\n       These queues are currently controlled by a flush scheduled into\n      ember-data's custom backburner instance.\n      */\n    // used for coalescing record save requests\n    // used for coalescing relationship updates\n    // used for coalescing internal model updates\n    // used to keep track of all the find requests that need to be coalesced\n    // DEBUG-only properties\n\n    /**\n      The default adapter to use to communicate to a backend server or\n      other persistence layer. This will be overridden by an application\n      adapter if present.\n       If you want to specify `app/adapters/custom.js` as a string, do:\n       ```js\n      import Store from '@ember-data/store';\n       export default Store.extend({\n        init() {\n          this._super(...arguments);\n          this.adapter = 'custom';\n        }\n      });\n      ```\n       @property adapter\n      @default '-json-api'\n      @type {String}\n    */\n\n    /**\n    This property returns the adapter, after resolving a possible\n    string key.\n     If the supplied `adapter` was a class, or a String property\n    path resolved to a class, this property will instantiate the\n    class.\n     This property is cacheable, so the same instance of a specified\n    adapter class should be used for the lifetime of the store.\n     @property defaultAdapter\n    @private\n    @return Adapter\n    */\n\n    /**\n      @method init\n      @private\n    */\n    constructor() {\n      super(...arguments);\n      this._backburner = backburner;\n      this.recordArrayManager = new RecordArrayManager({\n        store: this\n      });\n      this._notificationManager = void 0;\n      this._adapterCache = Object.create(null);\n      this._serializerCache = Object.create(null);\n      this._storeWrapper = new RecordDataStoreWrapper(this);\n      this._pendingSave = [];\n      this._updatedRelationships = [];\n      this._updatedInternalModels = [];\n      this._pendingFetch = new Map();\n      this._fetchManager = void 0;\n      this._schemaDefinitionService = void 0;\n      this._trackedAsyncRequests = void 0;\n      this.shouldAssertMethodCallsOnDestroyedStore = false;\n      this.shouldTrackAsyncRequests = false;\n      this.generateStackTracesForTrackedRequests = false;\n      this._trackAsyncRequestStart = void 0;\n      this._trackAsyncRequestEnd = void 0;\n      this.__asyncWaiter = void 0;\n\n      {\n        {\n          // support for legacy moduleFor style unit tests\n          // that did not include transforms in \"needs\"\n          // or which were not set to integration:true\n          // that were relying on ember-test-helpers\n          // doing an auto-registration of the transform\n          // or us doing one\n          var Mapping = {\n            date: 'DateTransform',\n            boolean: 'BooleanTransform',\n            number: 'NumberTransform',\n            string: 'StringTransform'\n          };\n          var shouldWarn = false;\n          var owner = Ember.getOwner(this);\n          Object.keys(Mapping).forEach(attributeType => {\n            var transformFactory = owner.factoryFor(`transform:${attributeType}`);\n\n            if (!transformFactory) {\n              // we don't deprecate this because the moduleFor style tests with the closed\n              // resolver will be deprecated on their own. When that deprecation completes\n              // we can drop this.\n              var Transform = require$1(`@ember-data/serializer/-private`)[Mapping[attributeType]];\n\n              owner.register(`transform:${attributeType}`, Transform);\n              shouldWarn = true;\n            }\n          });\n\n          if (shouldWarn) {\n            ( Ember.deprecate(`You are relying on the automatic registration of the transforms \"date\", \"number\", \"boolean\", and \"string\". Likely this means you are using a legacy ember-qunit moduleFor helper. Add \"needs: ['transform:date', 'transform:boolean', 'transform:number', 'transform:string']\", \"integration: true\", or refactor to modern syntax to resolve this deprecation.`, false, {\n              id: 'ember-data:-legacy-test-registrations',\n              until: '3.17'\n            }));\n          }\n        }\n\n        this.shouldAssertMethodCallsOnDestroyedStore = this.shouldAssertMethodCallsOnDestroyedStore || false;\n\n        if (this.shouldTrackAsyncRequests === undefined) {\n          this.shouldTrackAsyncRequests = false;\n        }\n\n        if (this.generateStackTracesForTrackedRequests === undefined) {\n          this.generateStackTracesForTrackedRequests = false;\n        }\n\n        this._trackedAsyncRequests = [];\n\n        this._trackAsyncRequestStart = label => {\n          var trace = 'set `store.generateStackTracesForTrackedRequests = true;` to get a detailed trace for where this request originated';\n\n          if (this.generateStackTracesForTrackedRequests) {\n            try {\n              throw new Error(`EmberData TrackedRequest: ${label}`);\n            } catch (e) {\n              trace = e;\n            }\n          }\n\n          var token = freeze$1({\n            label,\n            trace\n          });\n\n          this._trackedAsyncRequests.push(token);\n\n          return token;\n        };\n\n        this._trackAsyncRequestEnd = token => {\n          var index = this._trackedAsyncRequests.indexOf(token);\n\n          if (index === -1) {\n            throw new Error(`Attempted to end tracking for the following request but it was not being tracked:\\n${token}`);\n          }\n\n          this._trackedAsyncRequests.splice(index, 1);\n        };\n\n        this.__asyncWaiter = () => {\n          var shouldTrack = this.shouldTrackAsyncRequests;\n          var tracked = this._trackedAsyncRequests;\n          var isSettled = tracked.length === 0;\n          return shouldTrack !== true || isSettled;\n        };\n\n        Ember.Test.registerWaiter(this.__asyncWaiter);\n      }\n    }\n\n    getRequestStateService() {\n\n      assertInDebug('RequestService is not available unless the feature flag is on and running on a canary build', false);\n    }\n\n    get identifierCache() {\n      return identifierCacheFor(this);\n    }\n\n    _instantiateRecord(internalModel, modelName, recordData, identifier, properties) {\n\n      assertInDebug('should not be here, custom model class ff error', false);\n    }\n\n    _internalDeleteRecord(internalModel) {\n      internalModel.deleteRecord();\n    } // FeatureFlagged in the DSModelStore claas\n\n\n    _attributesDefinitionFor(modelName, identifier) {\n      if (identifier) {\n        return this.getSchemaDefinitionService().attributesDefinitionFor(identifier);\n      } else {\n        return this.getSchemaDefinitionService().attributesDefinitionFor(modelName);\n      }\n    }\n\n    _relationshipsDefinitionFor(modelName, identifier) {\n      if (identifier) {\n        return this.getSchemaDefinitionService().relationshipsDefinitionFor(identifier);\n      } else {\n        return this.getSchemaDefinitionService().relationshipsDefinitionFor(modelName);\n      }\n    }\n\n    registerSchemaDefinitionService(schema) {\n      this._schemaDefinitionService = schema;\n    }\n\n    getSchemaDefinitionService() {\n\n      assertInDebug('need to enable CUSTOM_MODEL_CLASS feature flag in order to access SchemaDefinitionService', false);\n    } // TODO Double check this return value is correct\n\n\n    _relationshipMetaFor(modelName, id, key) {\n      return this._relationshipsDefinitionFor(modelName)[key];\n    }\n\n    modelFor(modelName) {\n      {\n        assertDestroyedStoreOnly(this, 'modelFor');\n      }\n\n      return getShimClass(this, modelName);\n    } // Feature Flagged in DSModelStore\n\n    /*\n    Returns whether a ModelClass exists for a given modelName\n    This exists for legacy support for the RESTSerializer,\n    which due to how it must guess whether a key is a model\n    must query for whether a match exists.\n     We should investigate an RFC to make this public or removing\n    this requirement.\n     @private\n    */\n\n\n    _hasModelFor(modelName) {\n      ( !(Ember.isPresent(modelName)) && Ember.assert(`You need to pass a model name to the store's hasModelFor method`, Ember.isPresent(modelName)));\n      ( !(typeof modelName === 'string') && Ember.assert(`Passing classes to store methods has been removed. Please pass a dasherized string instead of ${modelName}`, typeof modelName === 'string'));\n      return this.getSchemaDefinitionService().doesTypeExist(modelName);\n    } // .....................\n    // . CREATE NEW RECORD .\n    // .....................\n\n    /**\n      Create a new record in the current store. The properties passed\n      to this method are set on the newly created record.\n       To create a new instance of a `Post`:\n       ```js\n      store.createRecord('post', {\n        title: 'Ember is awesome!'\n      });\n      ```\n       To create a new instance of a `Post` that has a relationship with a `User` record:\n       ```js\n      let user = this.store.peekRecord('user', 1);\n      store.createRecord('post', {\n        title: 'Ember is awesome!',\n        user: user\n      });\n      ```\n       @method createRecord\n      @param {String} modelName\n      @param {Object} inputProperties a hash of properties to set on the\n        newly created record.\n      @return {Model} record\n    */\n\n\n    createRecord(modelName, inputProperties) {\n      {\n        assertDestroyingStore(this, 'createRecord');\n      }\n\n      ( !(Ember.isPresent(modelName)) && Ember.assert(`You need to pass a model name to the store's createRecord method`, Ember.isPresent(modelName)));\n      ( !(typeof modelName === 'string') && Ember.assert(`Passing classes to store methods has been removed. Please pass a dasherized string instead of ${modelName}`, typeof modelName === 'string')); // This is wrapped in a `run.join` so that in test environments users do not need to manually wrap\n      //   calls to `createRecord`. The run loop usage here is because we batch the joining and updating\n      //   of record-arrays via ember's run loop, not our own.\n      //\n      //   to remove this, we would need to move to a new `async` API.\n\n      return emberRun$2.join(() => {\n        return this._backburner.join(() => {\n          var normalizedModelName = normalizeModelName(modelName);\n          var properties = Ember.assign({}, inputProperties); // If the passed properties do not include a primary key,\n          // give the adapter an opportunity to generate one. Typically,\n          // client-side ID generators will use something like uuid.js\n          // to avoid conflicts.\n\n          if (Ember.isNone(properties.id)) {\n            properties.id = this._generateId(normalizedModelName, properties);\n          } // Coerce ID to a string\n\n\n          properties.id = coerceId(properties.id);\n          var factory = internalModelFactoryFor(this);\n          var internalModel = factory.build({\n            type: normalizedModelName,\n            id: properties.id\n          });\n          internalModel.loadedData(); // TODO this exists just to proxy `isNew` to RecordData which is weird\n\n          internalModel.didCreateRecord();\n          return internalModel.getRecord(properties);\n        });\n      });\n    }\n    /**\n      If possible, this method asks the adapter to generate an ID for\n      a newly created record.\n       @method _generateId\n      @private\n      @param {String} modelName\n      @param {Object} properties from the new record\n      @return {String} if the adapter can generate one, an ID\n    */\n\n\n    _generateId(modelName, properties) {\n      var adapter = this.adapterFor(modelName);\n\n      if (adapter && adapter.generateIdForRecord) {\n        return adapter.generateIdForRecord(this, modelName, properties);\n      }\n\n      return null;\n    } // .................\n    // . DELETE RECORD .\n    // .................\n\n    /**\n      For symmetry, a record can be deleted via the store.\n       Example\n       ```javascript\n      let post = store.createRecord('post', {\n        title: 'Ember is awesome!'\n      });\n       store.deleteRecord(post);\n      ```\n       @method deleteRecord\n      @param {Model} record\n    */\n\n\n    deleteRecord(record) {\n      {\n        assertDestroyingStore(this, 'deleteRecord');\n      }\n\n      {\n        record.deleteRecord();\n      }\n    }\n    /**\n      For symmetry, a record can be unloaded via the store.\n      This will cause the record to be destroyed and freed up for garbage collection.\n       Example\n       ```javascript\n      store.findRecord('post', 1).then(function(post) {\n        store.unloadRecord(post);\n      });\n      ```\n       @method unloadRecord\n      @param {Model} record\n    */\n\n\n    unloadRecord(record) {\n      {\n        assertDestroyingStore(this, 'unloadRecord');\n      }\n\n      {\n        record.unloadRecord();\n      }\n    } // ................\n    // . FIND RECORDS .\n    // ................\n\n    /**\n      @method find\n      @param {String} modelName\n      @param {String|Integer} id\n      @param {Object} options\n      @return {Promise} promise\n      @private\n    */\n\n\n    find(modelName, id, options) {\n      {\n        assertDestroyingStore(this, 'find');\n      } // The default `model` hook in Route calls `find(modelName, id)`,\n      // that's why we have to keep this method around even though `findRecord` is\n      // the public way to get a record by modelName and id.\n\n\n      ( !(arguments.length !== 1) && Ember.assert(`Using store.find(type) has been removed. Use store.findAll(modelName) to retrieve all records for a given type.`, arguments.length !== 1));\n      ( !(!options) && Ember.assert(`Calling store.find(modelName, id, { preload: preload }) is no longer supported. Use store.findRecord(modelName, id, { preload: preload }) instead.`, !options));\n      ( !(arguments.length === 2) && Ember.assert(`You need to pass the model name and id to the store's find method`, arguments.length === 2));\n      ( !(typeof id === 'string' || typeof id === 'number') && Ember.assert(`You cannot pass '${id}' as id to the store's find method`, typeof id === 'string' || typeof id === 'number'));\n      ( !(typeof id !== 'object') && Ember.assert(`Calling store.find() with a query object is no longer supported. Use store.query() instead.`, typeof id !== 'object'));\n      ( !(typeof modelName === 'string') && Ember.assert(`Passing classes to store methods has been removed. Please pass a dasherized string instead of ${modelName}`, typeof modelName === 'string'));\n      return this.findRecord(modelName, id);\n    }\n    /**\n      This method returns a record for a given type and id combination.\n       The `findRecord` method will always resolve its promise with the same\n      object for a given type and `id`.\n       The `findRecord` method will always return a **promise** that will be\n      resolved with the record.\n       Example\n       ```app/routes/post.js\n      import Route from '@ember/routing/route';\n       export default Route.extend({\n        model(params) {\n          return this.store.findRecord('post', params.post_id);\n        }\n      });\n      ```\n       If the record is not yet available, the store will ask the adapter's `find`\n      method to find the necessary data. If the record is already present in the\n      store, it depends on the reload behavior _when_ the returned promise\n      resolves.\n       ### Preloading\n       You can optionally `preload` specific attributes and relationships that you know of\n      by passing them via the passed `options`.\n       For example, if your Ember route looks like `/posts/1/comments/2` and your API route\n      for the comment also looks like `/posts/1/comments/2` if you want to fetch the comment\n      without fetching the post you can pass in the post to the `findRecord` call:\n       ```javascript\n      store.findRecord('comment', 2, { preload: { post: 1 } });\n      ```\n       If you have access to the post model you can also pass the model itself:\n       ```javascript\n      store.findRecord('post', 1).then(function (myPostModel) {\n        store.findRecord('comment', 2, { post: myPostModel });\n      });\n      ```\n       ### Reloading\n       The reload behavior is configured either via the passed `options` hash or\n      the result of the adapter's `shouldReloadRecord`.\n       If `{ reload: true }` is passed or `adapter.shouldReloadRecord` evaluates\n      to `true`, then the returned promise resolves once the adapter returns\n      data, regardless if the requested record is already in the store:\n       ```js\n      store.push({\n        data: {\n          id: 1,\n          type: 'post',\n          revision: 1\n        }\n      });\n       // adapter#findRecord resolves with\n      // [\n      //   {\n      //     id: 1,\n      //     type: 'post',\n      //     revision: 2\n      //   }\n      // ]\n      store.findRecord('post', 1, { reload: true }).then(function(post) {\n        post.get('revision'); // 2\n      });\n      ```\n       If no reload is indicated via the above mentioned ways, then the promise\n      immediately resolves with the cached version in the store.\n       ### Background Reloading\n       Optionally, if `adapter.shouldBackgroundReloadRecord` evaluates to `true`,\n      then a background reload is started, which updates the records' data, once\n      it is available:\n       ```js\n      // app/adapters/post.js\n      import ApplicationAdapter from \"./application\";\n       export default ApplicationAdapter.extend({\n        shouldReloadRecord(store, snapshot) {\n          return false;\n        },\n         shouldBackgroundReloadRecord(store, snapshot) {\n          return true;\n        }\n      });\n       // ...\n       store.push({\n        data: {\n          id: 1,\n          type: 'post',\n          revision: 1\n        }\n      });\n       let blogPost = store.findRecord('post', 1).then(function(post) {\n        post.get('revision'); // 1\n      });\n       // later, once adapter#findRecord resolved with\n      // [\n      //   {\n      //     id: 1,\n      //     type: 'post',\n      //     revision: 2\n      //   }\n      // ]\n       blogPost.get('revision'); // 2\n      ```\n       If you would like to force or prevent background reloading, you can set a\n      boolean value for `backgroundReload` in the options object for\n      `findRecord`.\n       ```app/routes/post/edit.js\n      import Route from '@ember/routing/route';\n       export default Route.extend({\n        model(params) {\n          return this.store.findRecord('post', params.post_id, { backgroundReload: false });\n        }\n      });\n      ```\n       If you pass an object on the `adapterOptions` property of the options\n      argument it will be passed to you adapter via the snapshot\n       ```app/routes/post/edit.js\n      import Route from '@ember/routing/route';\n       export default Route.extend({\n        model(params) {\n          return this.store.findRecord('post', params.post_id, {\n            adapterOptions: { subscribe: false }\n          });\n        }\n      });\n      ```\n       ```app/adapters/post.js\n      import MyCustomAdapter from './custom-adapter';\n       export default MyCustomAdapter.extend({\n        findRecord(store, type, id, snapshot) {\n          if (snapshot.adapterOptions.subscribe) {\n            // ...\n          }\n          // ...\n        }\n      });\n      ```\n       See [peekRecord](Store/methods/peekRecord?anchor=peekRecord) to get the cached version of a record.\n       ### Retrieving Related Model Records\n       If you use an adapter such as Ember's default\n      [`JSONAPIAdapter`](/ember-data/release/classes/JSONAPIAdapter)\n      that supports the [JSON API specification](http://jsonapi.org/) and if your server\n      endpoint supports the use of an\n      ['include' query parameter](http://jsonapi.org/format/#fetching-includes),\n      you can use `findRecord()` to automatically retrieve additional records related to\n      the one you request by supplying an `include` parameter in the `options` object.\n       For example, given a `post` model that has a `hasMany` relationship with a `comment`\n      model, when we retrieve a specific post we can have the server also return that post's\n      comments in the same request:\n       ```app/routes/post.js\n      import Route from '@ember/routing/route';\n       export default Route.extend({\n        model(params) {\n          return this.store.findRecord('post', params.post_id, { include: 'comments' });\n        }\n      });\n       ```\n      In this case, the post's comments would then be available in your template as\n      `model.comments`.\n       Multiple relationships can be requested using an `include` parameter consisting of a\n      comma-separated list (without white-space) while nested relationships can be specified\n      using a dot-separated sequence of relationship names. So to request both the post's\n      comments and the authors of those comments the request would look like this:\n       ```app/routes/post.js\n      import Route from '@ember/routing/route';\n       export default Route.extend({\n        model(params) {\n          return this.store.findRecord('post', params.post_id, { include: 'comments,comments.author' });\n        }\n      });\n       ```\n       @since 1.13.0\n      @method findRecord\n      @param {String} modelName\n      @param {(String|Integer)} id\n      @param {Object} [options]\n      @param {Object} preload - optional set of attributes and relationships passed in either as IDs or as actual models\n      @return {Promise} promise\n    */\n\n\n    findRecord(modelName, id, options) {\n      {\n        assertDestroyingStore(this, 'findRecord');\n      }\n\n      ( !(Ember.isPresent(modelName)) && Ember.assert(`You need to pass a model name to the store's findRecord method`, Ember.isPresent(modelName)));\n      ( !(typeof modelName === 'string') && Ember.assert(`Passing classes to store methods has been removed. Please pass a dasherized string instead of ${modelName}`, typeof modelName === 'string'));\n      var type = normalizeModelName(modelName);\n      var normalizedId = ensureStringId(id);\n      var resource = constructResource(type, normalizedId);\n      var internalModel = internalModelFactoryFor(this).lookup(resource);\n      options = options || {};\n\n      if (!this.hasRecordForId(type, normalizedId)) {\n        return this._findByInternalModel(internalModel, options);\n      }\n\n      var fetchedInternalModel = this._findRecord(internalModel, options);\n\n      return promiseRecord(fetchedInternalModel, `DS: Store#findRecord ${type} with id: ${id}`);\n    }\n\n    _findRecord(internalModel, options) {\n      // Refetch if the reload option is passed\n      if (options.reload) {\n        return this._scheduleFetch(internalModel, options);\n      }\n\n      var snapshot = internalModel.createSnapshot(options);\n      var adapter = this.adapterFor(internalModel.modelName); // Refetch the record if the adapter thinks the record is stale\n\n      if (typeof options.reload === 'undefined' && adapter.shouldReloadRecord && adapter.shouldReloadRecord(this, snapshot)) {\n        return this._scheduleFetch(internalModel, options);\n      }\n\n      if (options.backgroundReload === false) {\n        return Ember.RSVP.Promise.resolve(internalModel);\n      } // Trigger the background refetch if backgroundReload option is passed\n\n\n      if (options.backgroundReload || !adapter.shouldBackgroundReloadRecord || adapter.shouldBackgroundReloadRecord(this, snapshot)) {\n        this._scheduleFetch(internalModel, options);\n      } // Return the cached record\n\n\n      return Ember.RSVP.Promise.resolve(internalModel);\n    }\n\n    _findByInternalModel(internalModel, options = {}) {\n      if (options.preload) {\n        internalModel.preloadData(options.preload);\n      }\n\n      var fetchedInternalModel = this._findEmptyInternalModel(internalModel, options);\n\n      return promiseRecord(fetchedInternalModel, `DS: Store#findRecord ${internalModel.modelName} with id: ${internalModel.id}`);\n    }\n\n    _findEmptyInternalModel(internalModel, options) {\n      if (internalModel.isEmpty()) {\n        return this._scheduleFetch(internalModel, options);\n      } //TODO double check about reloading\n\n\n      {\n        if (internalModel.isLoading()) {\n          return internalModel._promiseProxy;\n        }\n      }\n\n      return Ember.RSVP.Promise.resolve(internalModel);\n    }\n    /**\n      This method makes a series of requests to the adapter's `find` method\n      and returns a promise that resolves once they are all loaded.\n       @private\n      @method findByIds\n      @param {String} modelName\n      @param {Array} ids\n      @return {Promise} promise\n    */\n\n\n    findByIds(modelName, ids) {\n      {\n        assertDestroyingStore(this, 'findByIds');\n      }\n\n      ( !(Ember.isPresent(modelName)) && Ember.assert(`You need to pass a model name to the store's findByIds method`, Ember.isPresent(modelName)));\n      ( !(typeof modelName === 'string') && Ember.assert(`Passing classes to store methods has been removed. Please pass a dasherized string instead of ${modelName}`, typeof modelName === 'string'));\n      var promises = new Array(ids.length);\n      var normalizedModelName = normalizeModelName(modelName);\n\n      for (var i = 0; i < ids.length; i++) {\n        promises[i] = this.findRecord(normalizedModelName, ids[i]);\n      }\n\n      return promiseArray(Ember.RSVP.all(promises).then(Ember.A, null, `DS: Store#findByIds of ${normalizedModelName} complete`));\n    }\n    /**\n      This method is called by `findRecord` if it discovers that a particular\n      type/id pair hasn't been loaded yet to kick off a request to the\n      adapter.\n       @method _fetchRecord\n      @private\n      @param {InternalModel} internalModel model\n      @return {Promise} promise\n     */\n\n\n    _fetchRecord(internalModel, options) {\n      var modelName = internalModel.modelName;\n      var adapter = this.adapterFor(modelName);\n      ( !(adapter) && Ember.assert(`You tried to find a record but you have no adapter (for ${modelName})`, adapter));\n      ( !(typeof adapter.findRecord === 'function') && Ember.assert(`You tried to find a record but your adapter (for ${modelName}) does not implement 'findRecord'`, typeof adapter.findRecord === 'function'));\n      return _find(adapter, this, internalModel.type, internalModel.id, internalModel, options);\n    }\n\n    _scheduleFetchMany(internalModels, options) {\n      var fetches = new Array(internalModels.length);\n\n      for (var i = 0; i < internalModels.length; i++) {\n        fetches[i] = this._scheduleFetch(internalModels[i], options);\n      }\n\n      return Ember.RSVP.Promise.all(fetches);\n    }\n\n    _scheduleFetchThroughFetchManager(internalModel, options = {}) {\n      var generateStackTrace = this.generateStackTracesForTrackedRequests; // TODO  remove this once we dont rely on state machine\n\n      internalModel.loadingData();\n      var identifier = internalModel.identifier;\n      assertIdentifierHasId(identifier);\n\n      var promise = this._fetchManager.scheduleFetch(identifier, options, generateStackTrace);\n\n      return promise.then(payload => {\n        // ensure that regardless of id returned we assign to the correct record\n        if (payload.data && !Array.isArray(payload.data)) {\n          payload.data.lid = identifier.lid;\n        } // Returning this._push here, breaks typing but not any tests, invesstigate potential missing tests\n\n\n        var potentiallyNewIm = this._push(payload);\n\n        if (potentiallyNewIm && !Array.isArray(potentiallyNewIm)) {\n          return potentiallyNewIm;\n        } else {\n          return internalModel;\n        }\n      }, error => {\n        // TODO  remove this once we dont rely on state machine\n        internalModel.notFound();\n\n        if (internalModel.isEmpty()) {\n          internalModel.unloadRecord();\n        }\n\n        throw error;\n      });\n    }\n\n    _scheduleFetch(internalModel, options) {\n      {\n        if (internalModel._promiseProxy) {\n          return internalModel._promiseProxy;\n        }\n\n        var {\n          id,\n          modelName\n        } = internalModel;\n        var resolver = Ember.RSVP.defer(`Fetching ${modelName}' with id: ${id}`);\n        var pendingFetchItem = {\n          internalModel,\n          resolver,\n          options\n        };\n\n        {\n          if (this.generateStackTracesForTrackedRequests === true) {\n            var trace;\n\n            try {\n              throw new Error(`Trace Origin for scheduled fetch for ${modelName}:${id}.`);\n            } catch (e) {\n              trace = e;\n            } // enable folks to discover the origin of this findRecord call when\n            // debugging. Ideally we would have a tracked queue for requests with\n            // labels or local IDs that could be used to merge this trace with\n            // the trace made available when we detect an async leak\n\n\n            pendingFetchItem.trace = trace;\n          }\n        }\n\n        var promise = resolver.promise;\n        internalModel.loadingData(promise);\n\n        if (this._pendingFetch.size === 0) {\n          emberRun$2.schedule('actions', this, this.flushAllPendingFetches);\n        }\n\n        var fetches = this._pendingFetch;\n        var pending = fetches.get(modelName);\n\n        if (pending === undefined) {\n          pending = [];\n          fetches.set(modelName, pending);\n        }\n\n        pending.push(pendingFetchItem);\n        return promise;\n      }\n    }\n\n    flushAllPendingFetches() {\n      {\n        if (this.isDestroyed || this.isDestroying) {\n          return;\n        }\n\n        this._pendingFetch.forEach(this._flushPendingFetchForType, this);\n\n        this._pendingFetch.clear();\n      }\n    }\n\n    _flushPendingFetchForType(pendingFetchItems, modelName) {\n      var store = this;\n      var adapter = store.adapterFor(modelName);\n      var shouldCoalesce = !!adapter.findMany && adapter.coalesceFindRequests;\n      var totalItems = pendingFetchItems.length;\n      var internalModels = new Array(totalItems);\n      var seeking = Object.create(null);\n      var optionsMap = new WeakMap();\n\n      for (var _i = 0; _i < totalItems; _i++) {\n        var pendingItem = pendingFetchItems[_i];\n        var _internalModel = pendingItem.internalModel;\n        internalModels[_i] = _internalModel;\n        optionsMap.set(_internalModel, pendingItem.options); // We can remove this \"not null\" cast once we have enough typing\n        // to know we are only dealing with ExistingResourceIdentifierObjects\n\n        seeking[_internalModel.id] = pendingItem;\n      }\n\n      function _fetchRecord(recordResolverPair) {\n        var recordFetch = store._fetchRecord(recordResolverPair.internalModel, recordResolverPair.options);\n\n        recordResolverPair.resolver.resolve(recordFetch);\n      }\n\n      function handleFoundRecords(foundInternalModels, expectedInternalModels) {\n        // resolve found records\n        var found = Object.create(null);\n\n        for (var _i2 = 0, _l = foundInternalModels.length; _i2 < _l; _i2++) {\n          var _internalModel2 = foundInternalModels[_i2]; // We can remove this \"not null\" cast once we have enough typing\n          // to know we are only dealing with ExistingResourceIdentifierObjects\n\n          var _pair = seeking[_internalModel2.id];\n          found[_internalModel2.id] = _internalModel2;\n\n          if (_pair) {\n            var resolver = _pair.resolver;\n            resolver.resolve(_internalModel2);\n          }\n        } // reject missing records\n\n\n        var missingInternalModels = [];\n\n        for (var _i3 = 0, _l2 = expectedInternalModels.length; _i3 < _l2; _i3++) {\n          var _internalModel3 = expectedInternalModels[_i3]; // We can remove this \"not null\" cast once we have enough typing\n          // to know we are only dealing with ExistingResourceIdentifierObjects\n\n          if (!found[_internalModel3.id]) {\n            missingInternalModels.push(_internalModel3);\n          }\n        }\n\n        if (missingInternalModels.length) {\n          ( Ember.warn('Ember Data expected to find records with the following ids in the adapter response but they were missing: [ \"' + missingInternalModels.map(r => r.id).join('\", \"') + '\" ]', false, {\n            id: 'ds.store.missing-records-from-adapter'\n          }));\n          rejectInternalModels(missingInternalModels);\n        }\n      }\n\n      function rejectInternalModels(internalModels, error) {\n        for (var _i4 = 0, _l3 = internalModels.length; _i4 < _l3; _i4++) {\n          var _internalModel4 = internalModels[_i4]; // We can remove this \"not null\" cast once we have enough typing\n          // to know we are only dealing with ExistingResourceIdentifierObjects\n\n          var _pair2 = seeking[_internalModel4.id];\n\n          if (_pair2) {\n            _pair2.resolver.reject(error || new Error(`Expected: '${_internalModel4}' to be present in the adapter provided payload, but it was not found.`));\n          }\n        }\n      }\n\n      if (shouldCoalesce) {\n        // TODO: Improve records => snapshots => records => snapshots\n        //\n        // We want to provide records to all store methods and snapshots to all\n        // adapter methods. To make sure we're doing that we're providing an array\n        // of snapshots to adapter.groupRecordsForFindMany(), which in turn will\n        // return grouped snapshots instead of grouped records.\n        //\n        // But since the _findMany() finder is a store method we need to get the\n        // records from the grouped snapshots even though the _findMany() finder\n        // will once again convert the records to snapshots for adapter.findMany()\n        var snapshots = new Array(totalItems);\n\n        for (var _i5 = 0; _i5 < totalItems; _i5++) {\n          snapshots[_i5] = internalModels[_i5].createSnapshot(optionsMap.get(internalModel));\n        }\n\n        var groups;\n\n        if (adapter.groupRecordsForFindMany) {\n          groups = adapter.groupRecordsForFindMany(this, snapshots);\n        } else {\n          groups = [snapshots];\n        }\n\n        for (var i = 0, l = groups.length; i < l; i++) {\n          var group = groups[i];\n          var totalInGroup = groups[i].length;\n          var ids = new Array(totalInGroup);\n          var groupedInternalModels = new Array(totalInGroup);\n\n          for (var j = 0; j < totalInGroup; j++) {\n            var internalModel = group[j]._internalModel;\n            groupedInternalModels[j] = internalModel;\n            ids[j] = internalModel.id;\n          }\n\n          if (totalInGroup > 1) {\n            (function (groupedInternalModels) {\n              _findMany(adapter, store, modelName, ids, groupedInternalModels, optionsMap).then(function (foundInternalModels) {\n                handleFoundRecords(foundInternalModels, groupedInternalModels);\n              }).catch(function (error) {\n                rejectInternalModels(groupedInternalModels, error);\n              });\n            })(groupedInternalModels);\n          } else if (ids.length === 1) {\n            var pair = seeking[groupedInternalModels[0].id];\n\n            _fetchRecord(pair);\n          } else {\n            ( Ember.assert(\"You cannot return an empty array from adapter's method groupRecordsForFindMany\", false));\n          }\n        }\n      } else {\n        for (var _i6 = 0; _i6 < totalItems; _i6++) {\n          _fetchRecord(pendingFetchItems[_i6]);\n        }\n      }\n    }\n    /**\n      Get the reference for the specified record.\n       Example\n       ```javascript\n      let userRef = store.getReference('user', 1);\n       // check if the user is loaded\n      let isLoaded = userRef.value() !== null;\n       // get the record of the reference (null if not yet available)\n      let user = userRef.value();\n       // get the identifier of the reference\n      if (userRef.remoteType() === 'id') {\n      let id = userRef.id();\n      }\n       // load user (via store.find)\n      userRef.load().then(...)\n       // or trigger a reload\n      userRef.reload().then(...)\n       // provide data for reference\n      userRef.push({ id: 1, username: '@user' }).then(function(user) {\n        userRef.value() === user;\n      });\n      ```\n       @method getReference\n      @param {String} modelName\n      @param {String|Integer} id\n      @since 2.5.0\n      @return {RecordReference}\n    */\n\n\n    getReference(modelName, id) {\n      {\n        assertDestroyingStore(this, 'getReference');\n      }\n\n      var type = normalizeModelName(modelName);\n      var normalizedId = ensureStringId(id);\n      var resource = constructResource(type, normalizedId);\n      return internalModelFactoryFor(this).lookup(resource).recordReference;\n    }\n    /**\n      Get a record by a given type and ID without triggering a fetch.\n       This method will synchronously return the record if it is available in the store,\n      otherwise it will return `null`. A record is available if it has been fetched earlier, or\n      pushed manually into the store.\n       See [findRecord](Store/methods/findRecord?anchor=findRecord) if you would like to request this record from the backend.\n       _Note: This is a synchronous method and does not return a promise._\n       ```js\n      let post = store.peekRecord('post', 1);\n       post.get('id'); // 1\n      ```\n       @since 1.13.0\n      @method peekRecord\n      @param {String} modelName\n      @param {String|Integer} id\n      @return {Model|null} record\n    */\n\n\n    peekRecord(modelName, id) {\n      {\n        assertDestroyingStore(this, 'peekRecord');\n      }\n\n      ( !(Ember.isPresent(modelName)) && Ember.assert(`You need to pass a model name to the store's peekRecord method`, Ember.isPresent(modelName)));\n      ( !(typeof modelName === 'string') && Ember.assert(`Passing classes to store methods has been removed. Please pass a dasherized string instead of ${modelName}`, typeof modelName === 'string'));\n      var type = normalizeModelName(modelName);\n      var normalizedId = ensureStringId(id);\n\n      if (this.hasRecordForId(type, normalizedId)) {\n        var resource = constructResource(type, normalizedId);\n        return internalModelFactoryFor(this).lookup(resource).getRecord();\n      } else {\n        return null;\n      }\n    }\n    /**\n      This method is called by the record's `reload` method.\n       This method calls the adapter's `find` method, which returns a promise. When\n      **that** promise resolves, `_reloadRecord` will resolve the promise returned\n      by the record's `reload`.\n       @method _reloadRecord\n      @private\n      @param {Model} internalModel\n      @param options optional to include adapterOptions\n      @return {Promise} promise\n    */\n\n\n    _reloadRecord(internalModel, options) {\n\n      var {\n        id,\n        modelName\n      } = internalModel;\n      var adapter = this.adapterFor(modelName);\n      ( !(id) && Ember.assert(`You cannot reload a record without an ID`, id));\n      ( !(adapter) && Ember.assert(`You tried to reload a record but you have no adapter (for ${modelName})`, adapter));\n      ( !(typeof adapter.findRecord === 'function' || typeof adapter.find === 'function') && Ember.assert(`You tried to reload a record but your adapter does not implement 'findRecord'`, typeof adapter.findRecord === 'function' || typeof adapter.find === 'function'));\n      return this._scheduleFetch(internalModel, options);\n    }\n    /**\n     This method returns true if a record for a given modelName and id is already\n     loaded in the store. Use this function to know beforehand if a findRecord()\n     will result in a request or that it will be a cache hit.\n      Example\n      ```javascript\n     store.hasRecordForId('post', 1); // false\n     store.findRecord('post', 1).then(function() {\n       store.hasRecordForId('post', 1); // true\n     });\n     ```\n       @method hasRecordForId\n      @param {String} modelName\n      @param {(String|Integer)} id\n      @return {Boolean}\n    */\n\n\n    hasRecordForId(modelName, id) {\n      {\n        assertDestroyingStore(this, 'hasRecordForId');\n      }\n\n      ( !(Ember.isPresent(modelName)) && Ember.assert(`You need to pass a model name to the store's hasRecordForId method`, Ember.isPresent(modelName)));\n      ( !(typeof modelName === 'string') && Ember.assert(`Passing classes to store methods has been removed. Please pass a dasherized string instead of ${modelName}`, typeof modelName === 'string'));\n      var type = normalizeModelName(modelName);\n      var trueId = ensureStringId(id);\n      var resource = {\n        type,\n        id: trueId\n      };\n      var identifier = identifierCacheFor(this).peekRecordIdentifier(resource);\n      var internalModel = identifier && internalModelFactoryFor(this).peek(identifier);\n      return !!internalModel && internalModel.isLoaded();\n    }\n    /**\n      Returns id record for a given type and ID. If one isn't already loaded,\n      it builds a new record and leaves it in the `empty` state.\n       @method recordForId\n      @private\n      @param {String} modelName\n      @param {(String|Integer)} id\n      @return {Model} record\n    */\n\n\n    recordForId(modelName, id) {\n      {\n        assertDestroyingStore(this, 'recordForId');\n      }\n\n      ( !(Ember.isPresent(modelName)) && Ember.assert(`You need to pass a model name to the store's recordForId method`, Ember.isPresent(modelName)));\n      ( !(typeof modelName === 'string') && Ember.assert(`Passing classes to store methods has been removed. Please pass a dasherized string instead of ${modelName}`, typeof modelName === 'string'));\n      var resource = constructResource(modelName, ensureStringId(id));\n      return internalModelFactoryFor(this).lookup(resource).getRecord();\n    }\n    /**\n      @method findMany\n      @private\n      @param {Array} internalModels\n      @return {Promise} promise\n    */\n\n\n    findMany(internalModels, options) {\n      {\n        assertDestroyingStore(this, 'findMany');\n      }\n\n      var finds = new Array(internalModels.length);\n\n      for (var i = 0; i < internalModels.length; i++) {\n        finds[i] = this._findEmptyInternalModel(internalModels[i], options);\n      }\n\n      return Ember.RSVP.Promise.all(finds);\n    }\n    /**\n      If a relationship was originally populated by the adapter as a link\n      (as opposed to a list of IDs), this method is called when the\n      relationship is fetched.\n       The link (which is usually a URL) is passed through unchanged, so the\n      adapter can make whatever request it wants.\n       The usual use-case is for the server to register a URL as a link, and\n      then use that URL in the future to make a request for the relationship.\n       @method findHasMany\n      @private\n      @param {InternalModel} internalModel\n      @param {any} link\n      @param {(Relationship)} relationship\n      @return {Promise} promise\n    */\n\n\n    findHasMany(internalModel, link, relationship, options) {\n      {\n        assertDestroyingStore(this, 'findHasMany');\n      }\n\n      var adapter = this.adapterFor(internalModel.modelName);\n      ( !(adapter) && Ember.assert(`You tried to load a hasMany relationship but you have no adapter (for ${internalModel.modelName})`, adapter));\n      ( !(typeof adapter.findHasMany === 'function') && Ember.assert(`You tried to load a hasMany relationship from a specified 'link' in the original payload but your adapter does not implement 'findHasMany'`, typeof adapter.findHasMany === 'function'));\n      return _findHasMany(adapter, this, internalModel, link, relationship, options);\n    }\n\n    _findHasManyByJsonApiResource(resource, parentInternalModel, relationshipMeta, options) {\n      if (!resource) {\n        return Ember.RSVP.resolve([]);\n      }\n\n      var adapter = this.adapterFor(relationshipMeta.type);\n      var {\n        relationshipIsStale,\n        hasDematerializedInverse,\n        hasAnyRelationshipData,\n        relationshipIsEmpty,\n        shouldForceReload\n      } = resource._relationship;\n      var allInverseRecordsAreLoaded = areAllInverseRecordsLoaded(this, resource);\n      var shouldFindViaLink = resource.links && resource.links.related && (typeof adapter.findHasMany === 'function' || typeof resource.data === 'undefined') && (shouldForceReload || hasDematerializedInverse || relationshipIsStale || !allInverseRecordsAreLoaded && !relationshipIsEmpty); // fetch via link\n\n      if (shouldFindViaLink) {\n        return this.findHasMany(parentInternalModel, resource.links.related, relationshipMeta, options);\n      }\n\n      var preferLocalCache = hasAnyRelationshipData && !relationshipIsEmpty;\n      var hasLocalPartialData = hasDematerializedInverse || relationshipIsEmpty && Array.isArray(resource.data) && resource.data.length > 0; // fetch using data, pulling from local cache if possible\n\n      if (!shouldForceReload && !relationshipIsStale && (preferLocalCache || hasLocalPartialData)) {\n        var internalModels = resource.data.map(json => this._internalModelForResource(json));\n        return this.findMany(internalModels, options);\n      }\n\n      var hasData = hasAnyRelationshipData && !relationshipIsEmpty; // fetch by data\n\n      if (hasData || hasLocalPartialData) {\n        var _internalModels = resource.data.map(json => this._internalModelForResource(json));\n\n        return this._scheduleFetchMany(_internalModels, options);\n      } // we were explicitly told we have no data and no links.\n      //   TODO if the relationshipIsStale, should we hit the adapter anyway?\n\n\n      return Ember.RSVP.resolve([]);\n    }\n\n    _getHasManyByJsonApiResource(resource) {\n      var internalModels = [];\n\n      if (resource && resource.data) {\n        internalModels = resource.data.map(reference => this._internalModelForResource(reference));\n      }\n\n      return internalModels;\n    }\n    /**\n      @method findBelongsTo\n      @private\n      @param {InternalModel} internalModel\n      @param {any} link\n      @param {Relationship} relationship\n      @return {Promise} promise\n    */\n\n\n    findBelongsTo(internalModel, link, relationship, options) {\n      {\n        assertDestroyingStore(this, 'findBelongsTo');\n      }\n\n      var adapter = this.adapterFor(internalModel.modelName);\n      ( !(adapter) && Ember.assert(`You tried to load a belongsTo relationship but you have no adapter (for ${internalModel.modelName})`, adapter));\n      ( !(typeof adapter.findBelongsTo === 'function') && Ember.assert(`You tried to load a belongsTo relationship from a specified 'link' in the original payload but your adapter does not implement 'findBelongsTo'`, typeof adapter.findBelongsTo === 'function'));\n      return _findBelongsTo(adapter, this, internalModel, link, relationship, options);\n    }\n\n    _fetchBelongsToLinkFromResource(resource, parentInternalModel, relationshipMeta, options) {\n      if (!resource || !resource.links || !resource.links.related) {\n        // should we warn here, not sure cause its an internal method\n        return Ember.RSVP.resolve(null);\n      }\n\n      return this.findBelongsTo(parentInternalModel, resource.links.related, relationshipMeta, options).then(internalModel => {\n        return internalModel ? internalModel.getRecord() : null;\n      });\n    }\n\n    _findBelongsToByJsonApiResource(resource, parentInternalModel, relationshipMeta, options) {\n      if (!resource) {\n        return Ember.RSVP.resolve(null);\n      }\n\n      var internalModel = resource.data ? this._internalModelForResource(resource.data) : null;\n      var {\n        relationshipIsStale,\n        hasDematerializedInverse,\n        hasAnyRelationshipData,\n        relationshipIsEmpty,\n        shouldForceReload\n      } = resource._relationship;\n      var allInverseRecordsAreLoaded = areAllInverseRecordsLoaded(this, resource);\n      var shouldFindViaLink = resource.links && resource.links.related && (shouldForceReload || hasDematerializedInverse || relationshipIsStale || !allInverseRecordsAreLoaded && !relationshipIsEmpty);\n\n      if (internalModel) {\n        // short circuit if we are already loading\n        {\n          if (internalModel.isLoading()) {\n            return internalModel._promiseProxy.then(() => {\n              return internalModel.getRecord();\n            });\n          }\n        }\n      } // fetch via link\n\n\n      if (shouldFindViaLink) {\n        return this._fetchBelongsToLinkFromResource(resource, parentInternalModel, relationshipMeta, options);\n      }\n\n      var preferLocalCache = hasAnyRelationshipData && allInverseRecordsAreLoaded && !relationshipIsEmpty;\n      var hasLocalPartialData = hasDematerializedInverse || relationshipIsEmpty && resource.data; // null is explicit empty, undefined is \"we don't know anything\"\n\n      var localDataIsEmpty = resource.data === undefined || resource.data === null; // fetch using data, pulling from local cache if possible\n\n      if (!shouldForceReload && !relationshipIsStale && (preferLocalCache || hasLocalPartialData)) {\n        /*\n          We have canonical data, but our local state is empty\n         */\n        if (localDataIsEmpty) {\n          return Ember.RSVP.resolve(null);\n        }\n\n        return this._findByInternalModel(internalModel, options);\n      }\n\n      var resourceIsLocal = !localDataIsEmpty && resource.data.id === null;\n\n      if (internalModel && resourceIsLocal) {\n        return Ember.RSVP.resolve(internalModel.getRecord());\n      } // fetch by data\n\n\n      if (internalModel && !localDataIsEmpty) {\n        return this._scheduleFetch(internalModel, options).then(() => {\n          return internalModel.getRecord();\n        });\n      } // we were explicitly told we have no data and no links.\n      //   TODO if the relationshipIsStale, should we hit the adapter anyway?\n\n\n      return Ember.RSVP.resolve(null);\n    }\n    /**\n      This method delegates a query to the adapter. This is the one place where\n      adapter-level semantics are exposed to the application.\n       Each time this method is called a new request is made through the adapter.\n       Exposing queries this way seems preferable to creating an abstract query\n      language for all server-side queries, and then require all adapters to\n      implement them.\n       ---\n       If you do something like this:\n       ```javascript\n      store.query('person', { page: 1 });\n      ```\n       The request made to the server will look something like this:\n       ```\n      GET \"/api/v1/person?page=1\"\n      ```\n       ---\n       If you do something like this:\n       ```javascript\n      store.query('person', { ids: [1, 2, 3] });\n      ```\n       The request made to the server will look something like this:\n       ```\n      GET \"/api/v1/person?ids%5B%5D=1&ids%5B%5D=2&ids%5B%5D=3\"\n      decoded: \"/api/v1/person?ids[]=1&ids[]=2&ids[]=3\"\n      ```\n       This method returns a promise, which is resolved with an\n      [`AdapterPopulatedRecordArray`](/ember-data/release/classes/AdapterPopulatedRecordArray)\n      once the server returns.\n       @since 1.13.0\n      @method query\n      @param {String} modelName\n      @param {any} query an opaque query to be used by the adapter\n      @param {Object} options optional, may include `adapterOptions` hash which will be passed to adapter.query\n      @return {Promise} promise\n    */\n\n\n    query(modelName, query, options) {\n      {\n        assertDestroyingStore(this, 'query');\n      }\n\n      ( !(Ember.isPresent(modelName)) && Ember.assert(`You need to pass a model name to the store's query method`, Ember.isPresent(modelName)));\n      ( !(query) && Ember.assert(`You need to pass a query hash to the store's query method`, query));\n      ( !(typeof modelName === 'string') && Ember.assert(`Passing classes to store methods has been removed. Please pass a dasherized string instead of ${modelName}`, typeof modelName === 'string'));\n      var adapterOptionsWrapper = {};\n\n      if (options && options.adapterOptions) {\n        adapterOptionsWrapper.adapterOptions = options.adapterOptions;\n      }\n\n      var normalizedModelName = normalizeModelName(modelName);\n      return this._query(normalizedModelName, query, null, adapterOptionsWrapper);\n    }\n\n    _query(modelName, query, array, options) {\n      ( !(Ember.isPresent(modelName)) && Ember.assert(`You need to pass a model name to the store's query method`, Ember.isPresent(modelName)));\n      ( !(query) && Ember.assert(`You need to pass a query hash to the store's query method`, query));\n      ( !(typeof modelName === 'string') && Ember.assert(`Passing classes to store methods has been removed. Please pass a dasherized string instead of ${modelName}`, typeof modelName === 'string'));\n      var adapter = this.adapterFor(modelName);\n      ( !(adapter) && Ember.assert(`You tried to load a query but you have no adapter (for ${modelName})`, adapter));\n      ( !(typeof adapter.query === 'function') && Ember.assert(`You tried to load a query but your adapter does not implement 'query'`, typeof adapter.query === 'function'));\n      return promiseArray(_query(adapter, this, modelName, query, array, options));\n    }\n    /**\n      This method makes a request for one record, where the `id` is not known\n      beforehand (if the `id` is known, use [`findRecord`](Store/methods/findRecord?anchor=findRecord)\n      instead).\n       This method can be used when it is certain that the server will return a\n      single object for the primary data.\n       Each time this method is called a new request is made through the adapter.\n       Let's assume our API provides an endpoint for the currently logged in user\n      via:\n       ```\n      // GET /api/current_user\n      {\n        user: {\n          id: 1234,\n          username: 'admin'\n        }\n      }\n      ```\n       Since the specific `id` of the `user` is not known beforehand, we can use\n      `queryRecord` to get the user:\n       ```javascript\n      store.queryRecord('user', {}).then(function(user) {\n        let username = user.get('username');\n        console.log(`Currently logged in as ${username}`);\n      });\n      ```\n       The request is made through the adapters' `queryRecord`:\n       ```app/adapters/user.js\n      import $ from 'jquery';\n      import Adapter from '@ember-data/adapter';\n       export default Adapter.extend({\n        queryRecord(modelName, query) {\n          return $.getJSON('/api/current_user');\n        }\n      });\n      ```\n       Note: the primary use case for `store.queryRecord` is when a single record\n      is queried and the `id` is not known beforehand. In all other cases\n      `store.query` and using the first item of the array is likely the preferred\n      way:\n       ```\n      // GET /users?username=unique\n      {\n        data: [{\n          id: 1234,\n          type: 'user',\n          attributes: {\n            username: \"unique\"\n          }\n        }]\n      }\n      ```\n       ```javascript\n      store.query('user', { username: 'unique' }).then(function(users) {\n        return users.get('firstObject');\n      }).then(function(user) {\n        let id = user.get('id');\n      });\n      ```\n       This method returns a promise, which resolves with the found record.\n       If the adapter returns no data for the primary data of the payload, then\n      `queryRecord` resolves with `null`:\n       ```\n      // GET /users?username=unique\n      {\n        data: null\n      }\n      ```\n       ```javascript\n      store.queryRecord('user', { username: 'unique' }).then(function(user) {\n        console.log(user); // null\n      });\n      ```\n       @since 1.13.0\n      @method queryRecord\n      @param {String} modelName\n      @param {any} query an opaque query to be used by the adapter\n      @param {Object} options optional, may include `adapterOptions` hash which will be passed to adapter.queryRecord\n      @return {Promise} promise which resolves with the found record or `null`\n    */\n\n\n    queryRecord(modelName, query, options) {\n      {\n        assertDestroyingStore(this, 'queryRecord');\n      }\n\n      ( !(Ember.isPresent(modelName)) && Ember.assert(`You need to pass a model name to the store's queryRecord method`, Ember.isPresent(modelName)));\n      ( !(query) && Ember.assert(`You need to pass a query hash to the store's queryRecord method`, query));\n      ( !(typeof modelName === 'string') && Ember.assert(`Passing classes to store methods has been removed. Please pass a dasherized string instead of ${modelName}`, typeof modelName === 'string'));\n      var normalizedModelName = normalizeModelName(modelName);\n      var adapter = this.adapterFor(normalizedModelName);\n      var adapterOptionsWrapper = {};\n\n      if (options && options.adapterOptions) {\n        adapterOptionsWrapper.adapterOptions = options.adapterOptions;\n      }\n\n      ( !(adapter) && Ember.assert(`You tried to make a query but you have no adapter (for ${normalizedModelName})`, adapter));\n      ( !(typeof adapter.queryRecord === 'function') && Ember.assert(`You tried to make a query but your adapter does not implement 'queryRecord'`, typeof adapter.queryRecord === 'function'));\n      return promiseObject(_queryRecord(adapter, this, normalizedModelName, query, adapterOptionsWrapper).then(internalModel => {\n        // the promise returned by store.queryRecord is expected to resolve with\n        // an instance of Model\n        if (internalModel) {\n          return internalModel.getRecord();\n        }\n\n        return null;\n      }));\n    }\n    /**\n      `findAll` asks the adapter's `findAll` method to find the records for the\n      given type, and returns a promise which will resolve with all records of\n      this type present in the store, even if the adapter only returns a subset\n      of them.\n       ```app/routes/authors.js\n      import Route from '@ember/routing/route';\n       export default Route.extend({\n        model(params) {\n          return this.store.findAll('author');\n        }\n      });\n      ```\n       _When_ the returned promise resolves depends on the reload behavior,\n      configured via the passed `options` hash and the result of the adapter's\n      `shouldReloadAll` method.\n       ### Reloading\n       If `{ reload: true }` is passed or `adapter.shouldReloadAll` evaluates to\n      `true`, then the returned promise resolves once the adapter returns data,\n      regardless if there are already records in the store:\n       ```js\n      store.push({\n        data: {\n          id: 'first',\n          type: 'author'\n        }\n      });\n       // adapter#findAll resolves with\n      // [\n      //   {\n      //     id: 'second',\n      //     type: 'author'\n      //   }\n      // ]\n      store.findAll('author', { reload: true }).then(function(authors) {\n        authors.getEach('id'); // ['first', 'second']\n      });\n      ```\n       If no reload is indicated via the above mentioned ways, then the promise\n      immediately resolves with all the records currently loaded in the store.\n       ### Background Reloading\n       Optionally, if `adapter.shouldBackgroundReloadAll` evaluates to `true`,\n      then a background reload is started. Once this resolves, the array with\n      which the promise resolves, is updated automatically so it contains all the\n      records in the store:\n       ```app/adapters/application.js\n      import Adapter from '@ember-data/adapter';\n      export default Adapter.extend({\n        shouldReloadAll(store, snapshotsArray) {\n          return false;\n        },\n         shouldBackgroundReloadAll(store, snapshotsArray) {\n          return true;\n        }\n      });\n       // ...\n       store.push({\n        data: {\n          id: 'first',\n          type: 'author'\n        }\n      });\n       let allAuthors;\n      store.findAll('author').then(function(authors) {\n        authors.getEach('id'); // ['first']\n         allAuthors = authors;\n      });\n       // later, once adapter#findAll resolved with\n      // [\n      //   {\n      //     id: 'second',\n      //     type: 'author'\n      //   }\n      // ]\n       allAuthors.getEach('id'); // ['first', 'second']\n      ```\n       If you would like to force or prevent background reloading, you can set a\n      boolean value for `backgroundReload` in the options object for\n      `findAll`.\n       ```app/routes/post/edit.js\n      import Route from '@ember/routing/route';\n       export default Route.extend({\n        model() {\n          return this.store.findAll('post', { backgroundReload: false });\n        }\n      });\n      ```\n       If you pass an object on the `adapterOptions` property of the options\n      argument it will be passed to you adapter via the `snapshotRecordArray`\n       ```app/routes/posts.js\n      import Route from '@ember/routing/route';\n       export default Route.extend({\n        model(params) {\n          return this.store.findAll('post', {\n            adapterOptions: { subscribe: false }\n          });\n        }\n      });\n      ```\n       ```app/adapters/post.js\n      import MyCustomAdapter from './custom-adapter';\n       export default MyCustomAdapter.extend({\n        findAll(store, type, sinceToken, snapshotRecordArray) {\n          if (snapshotRecordArray.adapterOptions.subscribe) {\n            // ...\n          }\n          // ...\n        }\n      });\n      ```\n       See [peekAll](Store/methods/peekAll?anchor=peekAll) to get an array of current records in the\n      store, without waiting until a reload is finished.\n       ### Retrieving Related Model Records\n       If you use an adapter such as Ember's default\n      [`JSONAPIAdapter`](/ember-data/release/classes/JSONAPIAdapter)\n      that supports the [JSON API specification](http://jsonapi.org/) and if your server\n      endpoint supports the use of an\n      ['include' query parameter](http://jsonapi.org/format/#fetching-includes),\n      you can use `findAll()` to automatically retrieve additional records related to\n      those requested by supplying an `include` parameter in the `options` object.\n       For example, given a `post` model that has a `hasMany` relationship with a `comment`\n      model, when we retrieve all of the post records we can have the server also return\n      all of the posts' comments in the same request:\n       ```app/routes/posts.js\n      import Route from '@ember/routing/route';\n       export default Route.extend({\n        model() {\n          return this.store.findAll('post', { include: 'comments' });\n        }\n      });\n       ```\n      Multiple relationships can be requested using an `include` parameter consisting of a\n      comma-separated list (without white-space) while nested relationships can be specified\n      using a dot-separated sequence of relationship names. So to request both the posts'\n      comments and the authors of those comments the request would look like this:\n       ```app/routes/posts.js\n      import Route from '@ember/routing/route';\n       export default Route.extend({\n        model() {\n          return this.store.findAll('post', { include: 'comments,comments.author' });\n        }\n      });\n       ```\n       See [query](Store/methods/query?anchor=query) to only get a subset of records from the server.\n       @since 1.13.0\n      @method findAll\n      @param {String} modelName\n      @param {Object} options\n      @return {Promise} promise\n    */\n\n\n    findAll(modelName, options) {\n      {\n        assertDestroyingStore(this, 'findAll');\n      }\n\n      ( !(Ember.isPresent(modelName)) && Ember.assert(`You need to pass a model name to the store's findAll method`, Ember.isPresent(modelName)));\n      ( !(typeof modelName === 'string') && Ember.assert(`Passing classes to store methods has been removed. Please pass a dasherized string instead of ${modelName}`, typeof modelName === 'string'));\n      var normalizedModelName = normalizeModelName(modelName);\n\n      var fetch = this._fetchAll(normalizedModelName, this.peekAll(normalizedModelName), options);\n\n      return fetch;\n    }\n    /**\n      @method _fetchAll\n      @private\n      @param {Model} modelName\n      @param {RecordArray} array\n      @return {Promise} promise\n    */\n\n\n    _fetchAll(modelName, array, options = {}) {\n      var adapter = this.adapterFor(modelName);\n      ( !(adapter) && Ember.assert(`You tried to load all records but you have no adapter (for ${modelName})`, adapter));\n      ( !(typeof adapter.findAll === 'function') && Ember.assert(`You tried to load all records but your adapter does not implement 'findAll'`, typeof adapter.findAll === 'function'));\n\n      if (options.reload) {\n        Ember.set(array, 'isUpdating', true);\n        return promiseArray(_findAll(adapter, this, modelName, options));\n      }\n\n      var snapshotArray = array._createSnapshot(options);\n\n      if (options.reload !== false) {\n        if (adapter.shouldReloadAll && adapter.shouldReloadAll(this, snapshotArray) || !adapter.shouldReloadAll && snapshotArray.length === 0) {\n          Ember.set(array, 'isUpdating', true);\n          return promiseArray(_findAll(adapter, this, modelName, options));\n        }\n      }\n\n      if (options.backgroundReload === false) {\n        return promiseArray(Ember.RSVP.Promise.resolve(array));\n      }\n\n      if (options.backgroundReload || !adapter.shouldBackgroundReloadAll || adapter.shouldBackgroundReloadAll(this, snapshotArray)) {\n        Ember.set(array, 'isUpdating', true);\n\n        _findAll(adapter, this, modelName, options);\n      }\n\n      return promiseArray(Ember.RSVP.Promise.resolve(array));\n    }\n    /**\n      @method _didUpdateAll\n      @param {String} modelName\n      @private\n    */\n\n\n    _didUpdateAll(modelName) {\n      this.recordArrayManager._didUpdateAll(modelName);\n    }\n    /**\n      This method returns a filtered array that contains all of the\n      known records for a given type in the store.\n       Note that because it's just a filter, the result will contain any\n      locally created records of the type, however, it will not make a\n      request to the backend to retrieve additional records. If you\n      would like to request all the records from the backend please use\n      [store.findAll](Store/methods/findAll?anchor=findAll).\n       Also note that multiple calls to `peekAll` for a given type will always\n      return the same `RecordArray`.\n       Example\n       ```javascript\n      let localPosts = store.peekAll('post');\n      ```\n       @since 1.13.0\n      @method peekAll\n      @param {String} modelName\n      @return {RecordArray}\n    */\n\n\n    peekAll(modelName) {\n      {\n        assertDestroyingStore(this, 'peekAll');\n      }\n\n      ( !(Ember.isPresent(modelName)) && Ember.assert(`You need to pass a model name to the store's peekAll method`, Ember.isPresent(modelName)));\n      ( !(typeof modelName === 'string') && Ember.assert(`Passing classes to store methods has been removed. Please pass a dasherized string instead of ${modelName}`, typeof modelName === 'string'));\n      var normalizedModelName = normalizeModelName(modelName);\n      return this.recordArrayManager.liveRecordArrayFor(normalizedModelName);\n    }\n    /**\n      This method unloads all records in the store.\n      It schedules unloading to happen during the next run loop.\n       Optionally you can pass a type which unload all records for a given type.\n       ```javascript\n      store.unloadAll();\n      store.unloadAll('post');\n      ```\n       @method unloadAll\n      @param {String} modelName\n    */\n\n\n    unloadAll(modelName) {\n      {\n        assertDestroyedStoreOnly(this, 'unloadAll');\n      }\n\n      ( !(!modelName || typeof modelName === 'string') && Ember.assert(`Passing classes to store methods has been removed. Please pass a dasherized string instead of ${modelName}`, !modelName || typeof modelName === 'string'));\n      var factory = internalModelFactoryFor(this);\n\n      if (modelName === undefined) {\n        factory.clear();\n      } else {\n        var normalizedModelName = normalizeModelName(modelName);\n        factory.clear(normalizedModelName);\n      }\n    }\n\n    filter() {\n      ( Ember.assert('The filter API has been moved to a plugin. To enable store.filter using an environment flag, or to use an alternative, you can visit the ember-data-filter addon page. https://github.com/ember-data/ember-data-filter', false));\n    } // ..............\n    // . PERSISTING .\n    // ..............\n\n    /**\n      This method is called by `record.save`, and gets passed a\n      resolver for the promise that `record.save` returns.\n       It schedules saving to happen at the end of the run loop.\n       @method scheduleSave\n      @private\n      @param {InternalModel} internalModel\n      @param {Resolver} resolver\n      @param {Object} options\n    */\n\n\n    scheduleSave(internalModel, resolver, options) {\n      var snapshot = internalModel.createSnapshot(options);\n\n      if (internalModel._isRecordFullyDeleted()) {\n        resolver.resolve();\n        return resolver.promise;\n      }\n\n      internalModel.adapterWillCommit();\n\n      this._pendingSave.push({\n        snapshot: snapshot,\n        resolver: resolver\n      });\n\n      emberRun$2.scheduleOnce('actions', this, this.flushPendingSave);\n    }\n    /**\n      This method is called at the end of the run loop, and\n      flushes any records passed into `scheduleSave`\n       @method flushPendingSave\n      @private\n    */\n\n\n    flushPendingSave() {\n\n      var pending = this._pendingSave.slice();\n\n      this._pendingSave = [];\n\n      for (var i = 0, j = pending.length; i < j; i++) {\n        var pendingItem = pending[i];\n        var snapshot = pendingItem.snapshot;\n        var resolver = pendingItem.resolver; // TODO We have to cast due to our reliance on this private property\n        // this will be refactored away once we change our pending API to be identifier based\n\n        var internalModel = snapshot._internalModel;\n        var adapter = this.adapterFor(internalModel.modelName);\n        var operation = void 0;\n\n        {\n          if (internalModel.currentState.stateName === 'root.deleted.saved') {\n            resolver.resolve();\n            continue;\n          } else if (internalModel.isNew()) {\n            operation = 'createRecord';\n          } else if (internalModel.isDeleted()) {\n            operation = 'deleteRecord';\n          } else {\n            operation = 'updateRecord';\n          }\n        }\n\n        resolver.resolve(_commit(adapter, this, operation, snapshot));\n      }\n    }\n    /**\n      This method is called once the promise returned by an\n      adapter's `createRecord`, `updateRecord` or `deleteRecord`\n      is resolved.\n       If the data provides a server-generated ID, it will\n      update the record and the store's indexes.\n       @method didSaveRecord\n      @private\n      @param {InternalModel} internalModel the in-flight internal model\n      @param {Object} data optional data (see above)\n      @param {string} op the adapter operation that was committed\n    */\n\n\n    didSaveRecord(internalModel, dataArg, op) {\n      {\n        assertDestroyingStore(this, 'didSaveRecord');\n      }\n\n      var data;\n\n      if (dataArg) {\n        data = dataArg.data;\n      }\n\n      if (!data) {\n        ( !(internalModel.id) && Ember.assert(`Your ${internalModel.modelName} record was saved to the server, but the response does not have an id and no id has been set client side. Records must have ids. Please update the server response to provide an id in the response or generate the id on the client side either before saving the record or while normalizing the response.`, internalModel.id));\n      }\n\n      var cache = identifierCacheFor(this);\n      var identifier = internalModel.identifier;\n\n      if (op !== 'deleteRecord' && data) {\n        cache.updateRecordIdentifier(identifier, data);\n      } //We first make sure the primary data has been updated\n      //TODO try to move notification to the user to the end of the runloop\n\n\n      internalModel.adapterDidCommit(data);\n    }\n    /**\n      This method is called once the promise returned by an\n      adapter's `createRecord`, `updateRecord` or `deleteRecord`\n      is rejected with a `InvalidError`.\n       @method recordWasInvalid\n      @private\n      @param {InternalModel} internalModel\n      @param {Object} errors\n    */\n\n\n    recordWasInvalid(internalModel, parsedErrors, error) {\n      {\n        assertDestroyingStore(this, 'recordWasInvalid');\n      }\n\n      {\n        internalModel.adapterDidInvalidate(parsedErrors);\n      }\n    }\n    /**\n      This method is called once the promise returned by an\n      adapter's `createRecord`, `updateRecord` or `deleteRecord`\n      is rejected (with anything other than a `InvalidError`).\n       @method recordWasError\n      @private\n      @param {InternalModel} internalModel\n      @param {Error} error\n    */\n\n\n    recordWasError(internalModel, error) {\n      {\n        assertDestroyingStore(this, 'recordWasError');\n      }\n\n      internalModel.adapterDidError(error);\n    }\n    /**\n      Sets newly received ID from the adapter's `createRecord`, `updateRecord`\n      or `deleteRecord`.\n       @method setRecordId\n      @private\n      @param {String} modelName\n      @param {string} newId\n      @param {string} clientId\n     */\n\n\n    setRecordId(modelName, newId, clientId) {\n      {\n        assertDestroyingStore(this, 'setRecordId');\n      }\n\n      internalModelFactoryFor(this).setRecordId(modelName, newId, clientId);\n    } // ................\n    // . LOADING DATA .\n    // ................\n\n    /**\n      This internal method is used by `push`.\n       @method _load\n      @private\n      @param {Object} data\n    */\n\n\n    _load(data) {\n      var resource = constructResource(normalizeModelName(data.type), ensureStringId(data.id), coerceId(data.lid));\n      var internalModel = internalModelFactoryFor(this).lookup(resource, data); // store.push will be from empty\n      // findRecord will be from root.loading\n      // all else will be updates\n\n      var isLoading = internalModel.currentState.stateName === 'root.loading';\n      var isUpdate = internalModel.currentState.isEmpty === false && !isLoading; // exclude store.push (root.empty) case\n\n      if (isUpdate || isLoading) {\n        var _identifier3 = internalModel.identifier;\n        var updatedIdentifier = identifierCacheFor(this).updateRecordIdentifier(_identifier3, data);\n\n        if (updatedIdentifier !== _identifier3) {\n          // we encountered a merge of identifiers in which\n          // two identifiers (and likely two internalModels)\n          // existed for the same resource. Now that we have\n          // determined the correct identifier to use, make sure\n          // that we also use the correct internalModel.\n          _identifier3 = updatedIdentifier;\n          internalModel = internalModelFactoryFor(this).lookup(_identifier3);\n        }\n      }\n\n      internalModel.setupData(data);\n\n      if (!isUpdate) {\n        this.recordArrayManager.recordDidChange(internalModel);\n      }\n\n      return internalModel;\n    }\n    /**\n      Push some data for a given type into the store.\n       This method expects normalized [JSON API](http://jsonapi.org/) document. This means you have to follow [JSON API specification](http://jsonapi.org/format/) with few minor adjustments:\n      - record's `type` should always be in singular, dasherized form\n      - members (properties) should be camelCased\n       [Your primary data should be wrapped inside `data` property](http://jsonapi.org/format/#document-top-level):\n       ```js\n      store.push({\n        data: {\n          // primary data for single record of type `Person`\n          id: '1',\n          type: 'person',\n          attributes: {\n            firstName: 'Daniel',\n            lastName: 'Kmak'\n          }\n        }\n      });\n      ```\n       [Demo.](http://ember-twiddle.com/fb99f18cd3b4d3e2a4c7)\n       `data` property can also hold an array (of records):\n       ```js\n      store.push({\n        data: [\n          // an array of records\n          {\n            id: '1',\n            type: 'person',\n            attributes: {\n              firstName: 'Daniel',\n              lastName: 'Kmak'\n            }\n          },\n          {\n            id: '2',\n            type: 'person',\n            attributes: {\n              firstName: 'Tom',\n              lastName: 'Dale'\n            }\n          }\n        ]\n      });\n      ```\n       [Demo.](http://ember-twiddle.com/69cdbeaa3702159dc355)\n       There are some typical properties for `JSONAPI` payload:\n      * `id` - mandatory, unique record's key\n      * `type` - mandatory string which matches `model`'s dasherized name in singular form\n      * `attributes` - object which holds data for record attributes - `attr`'s declared in model\n      * `relationships` - object which must contain any of the following properties under each relationships' respective key (example path is `relationships.achievements.data`):\n        - [`links`](http://jsonapi.org/format/#document-links)\n        - [`data`](http://jsonapi.org/format/#document-resource-object-linkage) - place for primary data\n        - [`meta`](http://jsonapi.org/format/#document-meta) - object which contains meta-information about relationship\n       For this model:\n       ```app/models/person.js\n      import Model, { attr, hasMany } from '@ember-data/model';\n       export default Model.extend({\n        firstName: attr('string'),\n        lastName: attr('string'),\n         children: hasMany('person')\n      });\n      ```\n       To represent the children as IDs:\n       ```js\n      {\n        data: {\n          id: '1',\n          type: 'person',\n          attributes: {\n            firstName: 'Tom',\n            lastName: 'Dale'\n          },\n          relationships: {\n            children: {\n              data: [\n                {\n                  id: '2',\n                  type: 'person'\n                },\n                {\n                  id: '3',\n                  type: 'person'\n                },\n                {\n                  id: '4',\n                  type: 'person'\n                }\n              ]\n            }\n          }\n        }\n      }\n      ```\n       [Demo.](http://ember-twiddle.com/343e1735e034091f5bde)\n       To represent the children relationship as a URL:\n       ```js\n      {\n        data: {\n          id: '1',\n          type: 'person',\n          attributes: {\n            firstName: 'Tom',\n            lastName: 'Dale'\n          },\n          relationships: {\n            children: {\n              links: {\n                related: '/people/1/children'\n              }\n            }\n          }\n        }\n      }\n      ```\n       If you're streaming data or implementing an adapter, make sure\n      that you have converted the incoming data into this form. The\n      store's [normalize](Store/methods/normalize?anchor=normalize) method is a convenience\n      helper for converting a json payload into the form Ember Data\n      expects.\n       ```js\n      store.push(store.normalize('person', data));\n      ```\n       This method can be used both to push in brand new\n      records, as well as to update existing records.\n       @method push\n      @param {Object} data\n      @return the record(s) that was created or\n        updated.\n    */\n\n\n    push(data) {\n      {\n        assertDestroyingStore(this, 'push');\n      }\n\n      var pushed = this._push(data);\n\n      if (Array.isArray(pushed)) {\n        var records = pushed.map(internalModel => internalModel.getRecord());\n        return records;\n      }\n\n      if (pushed === null) {\n        return null;\n      }\n\n      var record = pushed.getRecord();\n      return record;\n    }\n    /*\n      Push some data in the form of a json-api document into the store,\n      without creating materialized records.\n       @method _push\n      @private\n      @param {Object} jsonApiDoc\n      @return {InternalModel|Array<InternalModel>} pushed InternalModel(s)\n    */\n\n\n    _push(jsonApiDoc) {\n      {\n        assertDestroyingStore(this, '_push');\n      }\n\n      var internalModelOrModels = this._backburner.join(() => {\n        var included = jsonApiDoc.included;\n        var i, length;\n\n        if (included) {\n          for (i = 0, length = included.length; i < length; i++) {\n            this._pushInternalModel(included[i]);\n          }\n        }\n\n        if (Array.isArray(jsonApiDoc.data)) {\n          length = jsonApiDoc.data.length;\n          var internalModels = new Array(length);\n\n          for (i = 0; i < length; i++) {\n            internalModels[i] = this._pushInternalModel(jsonApiDoc.data[i]);\n          }\n\n          return internalModels;\n        }\n\n        if (jsonApiDoc.data === null) {\n          return null;\n        }\n\n        ( !(Ember.typeOf(jsonApiDoc.data) === 'object') && Ember.assert(`Expected an object in the 'data' property in a call to 'push' for ${jsonApiDoc.type}, but was ${Ember.typeOf(jsonApiDoc.data)}`, Ember.typeOf(jsonApiDoc.data) === 'object'));\n        return this._pushInternalModel(jsonApiDoc.data);\n      }); // this typecast is necessary because `backburner.join` is mistyped to return void\n\n\n      return internalModelOrModels;\n    }\n\n    _pushInternalModel(data) {\n      var modelName = data.type;\n      ( !(data.id !== null && data.id !== undefined && data.id !== '') && Ember.assert(`You must include an 'id' for ${modelName} in an object passed to 'push'`, data.id !== null && data.id !== undefined && data.id !== ''));\n      ( !(this._hasModelFor(modelName)) && Ember.assert(`You tried to push data with a type '${modelName}' but no model could be found with that name.`, this._hasModelFor(modelName)));\n\n      {\n        // If ENV.DS_WARN_ON_UNKNOWN_KEYS is set to true and the payload\n        // contains unknown attributes or relationships, log a warning.\n        if (ENV.DS_WARN_ON_UNKNOWN_KEYS) {\n          var unknownAttributes, unknownRelationships;\n\n          {\n            var modelClass = this.modelFor(modelName); // Check unknown attributes\n\n            unknownAttributes = Object.keys(data.attributes || {}).filter(key => {\n              return !Ember.get(modelClass, 'fields').has(key);\n            }); // Check unknown relationships\n\n            unknownRelationships = Object.keys(data.relationships || {}).filter(key => {\n              return !Ember.get(modelClass, 'fields').has(key);\n            });\n          }\n\n          var unknownAttributesMessage = `The payload for '${modelName}' contains these unknown attributes: ${unknownAttributes}. Make sure they've been defined in your model.`;\n          ( Ember.warn(unknownAttributesMessage, unknownAttributes.length === 0, {\n            id: 'ds.store.unknown-keys-in-payload'\n          }));\n          var unknownRelationshipsMessage = `The payload for '${modelName}' contains these unknown relationships: ${unknownRelationships}. Make sure they've been defined in your model.`;\n          ( Ember.warn(unknownRelationshipsMessage, unknownRelationships.length === 0, {\n            id: 'ds.store.unknown-keys-in-payload'\n          }));\n        }\n      } // Actually load the record into the store.\n\n\n      var internalModel = this._load(data); //    this._setupRelationshipsForModel(internalModel, data);\n\n\n      return internalModel;\n    }\n    /**\n      Push some raw data into the store.\n       This method can be used both to push in brand new\n      records, as well as to update existing records. You\n      can push in more than one type of object at once.\n      All objects should be in the format expected by the\n      serializer.\n       ```app/serializers/application.js\n      import RESTSerializer from '@ember-data/serializer/rest';\n       export default RESTSerializer;\n      ```\n       ```js\n      let pushData = {\n        posts: [\n          { id: 1, postTitle: \"Great post\", commentIds: [2] }\n        ],\n        comments: [\n          { id: 2, commentBody: \"Insightful comment\" }\n        ]\n      }\n       store.pushPayload(pushData);\n      ```\n       By default, the data will be deserialized using a default\n      serializer (the application serializer if it exists).\n       Alternatively, `pushPayload` will accept a model type which\n      will determine which serializer will process the payload.\n       ```app/serializers/application.js\n      import RESTSerializer from '@ember-data/serializer/rest';\n       export default RESTSerializer;\n      ```\n       ```app/serializers/post.js\n      import JSONSerializer from '@ember-data/serializer/json';\n       export default JSONSerializer;\n      ```\n       ```js\n      store.pushPayload(pushData); // Will use the application serializer\n      store.pushPayload('post', pushData); // Will use the post serializer\n      ```\n       @method pushPayload\n      @param {String} modelName Optionally, a model type used to determine which serializer will be used\n      @param {Object} inputPayload\n    */\n\n\n    pushPayload(modelName, inputPayload) {\n      {\n        assertDestroyingStore(this, 'pushPayload');\n      }\n\n      var serializer;\n      var payload;\n\n      if (!inputPayload) {\n        payload = modelName;\n        serializer = this.serializerFor('application');\n        ( !(typeof serializer.pushPayload === 'function') && Ember.assert(`You cannot use 'store#pushPayload' without a modelName unless your default serializer defines 'pushPayload'`, typeof serializer.pushPayload === 'function'));\n      } else {\n        payload = inputPayload;\n        ( !(typeof modelName === 'string') && Ember.assert(`Passing classes to store methods has been removed. Please pass a dasherized string instead of ${modelName}`, typeof modelName === 'string'));\n        var normalizedModelName = normalizeModelName(modelName);\n        serializer = this.serializerFor(normalizedModelName);\n      }\n\n      ( !(serializer.pushPayload) && Ember.assert(`You must define a pushPayload method in your serializer in order to call store.pushPayload`, serializer.pushPayload));\n      serializer.pushPayload(this, payload);\n    }\n\n    reloadManyArray(manyArray, internalModel, key, options) {\n      return internalModel.reloadHasMany(key, options);\n    }\n\n    reloadBelongsTo(belongsToProxy, internalModel, key, options) {\n      return internalModel.reloadBelongsTo(key, options);\n    }\n\n    _internalModelForResource(resource) {\n      return internalModelFactoryFor(this).getByResource(resource);\n    }\n    /**\n     * TODO Only needed temporarily for test support\n     *\n     * @internal\n     */\n\n\n    _internalModelForId(type, id, lid) {\n      var resource = constructResource(type, id, lid);\n      return internalModelFactoryFor(this).lookup(resource);\n    }\n\n    serializeRecord(record, options) {\n\n      assertInDebug('serializeRecord is only available when CUSTOM_MODEL_CLASS ff is on', false);\n    }\n\n    saveRecord(record, options) {\n\n      assertInDebug('saveRecord is only available when CUSTOM_MODEL_CLASS ff is on', false);\n    }\n\n    relationshipReferenceFor(identifier, key) {\n\n      assertInDebug('relationshipReferenceFor is only available when CUSTOM_MODEL_CLASS ff is on', false);\n    }\n    /**\n     * @internal\n     */\n\n\n    _createRecordData(identifier) {\n      return this.createRecordDataFor(identifier.type, identifier.id, identifier.lid, this._storeWrapper);\n    }\n    /**\n     * Instantiation hook allowing applications or addons to configure the store\n     * to utilize a custom RecordData implementation.\n     *\n     * @param modelName\n     * @param id\n     * @param clientId\n     * @param storeWrapper\n     */\n\n\n    createRecordDataFor(modelName, id, clientId, storeWrapper) {\n      {\n        // we can't greedily use require as this causes\n        // a cycle we can't easily fix (or clearly pin point) at present.\n        //\n        // it can be reproduced in partner tests by running\n        // node ./bin/packages-for-commit.js && yarn test-external:ember-observer\n        if (_RecordData === undefined) {\n          _RecordData = require$1('@ember-data/record-data/-private').RecordData;\n        }\n\n        var _identifier6 = identifierCacheFor(this).getOrCreateRecordIdentifier({\n          type: modelName,\n          id,\n          lid: clientId\n        });\n\n        return new _RecordData(_identifier6, storeWrapper);\n      }\n    }\n    /**\n     * @internal\n     */\n\n\n    __recordDataFor(resource) {\n      var identifier = identifierCacheFor(this).getOrCreateRecordIdentifier(resource);\n      return this.recordDataFor(identifier, false);\n    }\n    /**\n     * @internal\n     */\n\n\n    recordDataFor(identifier, isCreate) {\n      var internalModel;\n\n      if (isCreate === true) {\n        internalModel = internalModelFactoryFor(this).build({\n          type: identifier.type,\n          id: null\n        });\n        internalModel.loadedData();\n        internalModel.didCreateRecord();\n      } else {\n        internalModel = internalModelFactoryFor(this).lookup(identifier);\n      }\n\n      return recordDataFor(internalModel);\n    }\n    /**\n      `normalize` converts a json payload into the normalized form that\n      [push](Store/methods/push?anchor=push) expects.\n       Example\n       ```js\n      socket.on('message', function(message) {\n        let modelName = message.model;\n        let data = message.data;\n        store.push(store.normalize(modelName, data));\n      });\n      ```\n       @method normalize\n      @param {String} modelName The name of the model type for this payload\n      @param {Object} payload\n      @return {Object} The normalized payload\n    */\n\n\n    normalize(modelName, payload) {\n      {\n        assertDestroyingStore(this, 'normalize');\n      }\n\n      ( !(Ember.isPresent(modelName)) && Ember.assert(`You need to pass a model name to the store's normalize method`, Ember.isPresent(modelName)));\n      ( !(typeof modelName === 'string') && Ember.assert(`Passing classes to store methods has been removed. Please pass a dasherized string instead of ${Ember.inspect(modelName)}`, typeof modelName === 'string'));\n      var normalizedModelName = normalizeModelName(modelName);\n      var serializer = this.serializerFor(normalizedModelName);\n      var model = this.modelFor(normalizedModelName);\n      ( !(serializer.normalize) && Ember.assert(`You must define a normalize method in your serializer in order to call store.normalize`, serializer.normalize));\n      return serializer.normalize(model, payload);\n    }\n\n    newClientId() {\n      assertInDebug(`Private API Removed`, false);\n    } // ...............\n    // . DESTRUCTION .\n    // ...............\n\n    /**\n     * TODO remove test usage\n     *\n     * @internal\n     */\n\n\n    _internalModelsFor(modelName) {\n      return internalModelFactoryFor(this).modelMapFor(modelName);\n    } // ......................\n    // . PER-TYPE ADAPTERS\n    // ......................\n\n    /**\n      Returns an instance of the adapter for a given type. For\n      example, `adapterFor('person')` will return an instance of\n      `App.PersonAdapter`.\n       If no `App.PersonAdapter` is found, this method will look\n      for an `App.ApplicationAdapter` (the default adapter for\n      your entire application).\n       If no `App.ApplicationAdapter` is found, it will return\n      the value of the `defaultAdapter`.\n       @method adapterFor\n      @public\n      @param {String} modelName\n      @return Adapter\n    */\n\n\n    adapterFor(modelName) {\n      {\n        assertDestroyingStore(this, 'adapterFor');\n      }\n\n      ( !(Ember.isPresent(modelName)) && Ember.assert(`You need to pass a model name to the store's adapterFor method`, Ember.isPresent(modelName)));\n      ( !(typeof modelName === 'string') && Ember.assert(`Passing classes to store.adapterFor has been removed. Please pass a dasherized string instead of ${modelName}`, typeof modelName === 'string'));\n      var normalizedModelName = normalizeModelName(modelName);\n      var {\n        _adapterCache\n      } = this;\n      var adapter = _adapterCache[normalizedModelName];\n\n      if (adapter) {\n        return adapter;\n      }\n\n      var owner = Ember.getOwner(this);\n      adapter = owner.lookup(`adapter:${normalizedModelName}`); // in production this is handled by the re-export\n\n      if ( adapter === undefined) {\n        if (normalizedModelName === '-json-api') {\n          var Adapter = require$1('@ember-data/adapter/json-api').default;\n\n          owner.register(`adapter:-json-api`, Adapter);\n          adapter = owner.lookup(`adapter:-json-api`);\n          deprecateTestRegistration('adapter', '-json-api');\n        }\n      }\n\n      if (adapter !== undefined) {\n        Ember.set(adapter, 'store', this);\n        _adapterCache[normalizedModelName] = adapter;\n        return adapter;\n      } // no adapter found for the specific model, fallback and check for application adapter\n\n\n      adapter = _adapterCache.application || owner.lookup('adapter:application');\n\n      if (adapter !== undefined) {\n        Ember.set(adapter, 'store', this);\n        _adapterCache[normalizedModelName] = adapter;\n        _adapterCache.application = adapter;\n        return adapter;\n      } // no model specific adapter or application adapter, check for an `adapter`\n      // property defined on the store\n\n\n      var adapterName = this.adapter || '-json-api';\n      adapter = adapterName ? _adapterCache[adapterName] || owner.lookup(`adapter:${adapterName}`) : undefined; // in production this is handled by the re-export\n\n      if ( adapter === undefined) {\n        if (adapterName === '-json-api') {\n          var _Adapter = require$1('@ember-data/adapter/json-api').default;\n\n          owner.register(`adapter:-json-api`, _Adapter);\n          adapter = owner.lookup(`adapter:-json-api`);\n          deprecateTestRegistration('adapter', '-json-api');\n        }\n      }\n\n      if (adapter !== undefined) {\n        Ember.set(adapter, 'store', this);\n        _adapterCache[normalizedModelName] = adapter;\n        _adapterCache[adapterName] = adapter;\n        return adapter;\n      } // final fallback, no model specific adapter, no application adapter, no\n      // `adapter` property on store: use json-api adapter\n\n\n      adapter = _adapterCache['-json-api'] || owner.lookup('adapter:-json-api');\n      ( !(adapter !== undefined) && Ember.assert(`No adapter was found for '${modelName}' and no 'application' adapter was found as a fallback.`, adapter !== undefined));\n      Ember.set(adapter, 'store', this);\n      _adapterCache[normalizedModelName] = adapter;\n      _adapterCache['-json-api'] = adapter;\n      return adapter;\n    } // ..............................\n    // . RECORD CHANGE NOTIFICATION .\n    // ..............................\n\n    /**\n      Returns an instance of the serializer for a given type. For\n      example, `serializerFor('person')` will return an instance of\n      `App.PersonSerializer`.\n       If no `App.PersonSerializer` is found, this method will look\n      for an `App.ApplicationSerializer` (the default serializer for\n      your entire application).\n       if no `App.ApplicationSerializer` is found, it will attempt\n      to get the `defaultSerializer` from the `PersonAdapter`\n      (`adapterFor('person')`).\n       If a serializer cannot be found on the adapter, it will fall back\n      to an instance of `JSONSerializer`.\n       @method serializerFor\n      @public\n      @param {String} modelName the record to serialize\n      @return {Serializer}\n    */\n\n\n    serializerFor(modelName) {\n      {\n        assertDestroyingStore(this, 'serializerFor');\n      }\n\n      ( !(Ember.isPresent(modelName)) && Ember.assert(`You need to pass a model name to the store's serializerFor method`, Ember.isPresent(modelName)));\n      ( !(typeof modelName === 'string') && Ember.assert(`Passing classes to store.serializerFor has been removed. Please pass a dasherized string instead of ${modelName}`, typeof modelName === 'string'));\n      var normalizedModelName = normalizeModelName(modelName);\n      var {\n        _serializerCache\n      } = this;\n      var serializer = _serializerCache[normalizedModelName];\n\n      if (serializer) {\n        return serializer;\n      }\n\n      var owner = Ember.getOwner(this);\n      serializer = owner.lookup(`serializer:${normalizedModelName}`);\n\n      {\n        // in production this is handled by the re-export\n        if ( serializer === undefined) {\n          if (normalizedModelName === '-json-api') {\n            var Serializer = require$1('@ember-data/serializer/json-api').default;\n\n            owner.register(`serializer:-json-api`, Serializer);\n            serializer = owner.lookup(`serializer:-json-api`);\n            deprecateTestRegistration('serializer', '-json-api');\n          } else if (normalizedModelName === '-rest') {\n            var _Serializer = require$1('@ember-data/serializer/rest').default;\n\n            owner.register(`serializer:-rest`, _Serializer);\n            serializer = owner.lookup(`serializer:-rest`);\n            deprecateTestRegistration('serializer', '-rest');\n          } else if (normalizedModelName === '-default') {\n            var _Serializer2 = require$1('@ember-data/serializer/json').default;\n\n            owner.register(`serializer:-default`, _Serializer2);\n            serializer = owner.lookup(`serializer:-default`);\n            serializer && deprecateTestRegistration('serializer', '-default');\n          }\n        }\n      }\n\n      if (serializer !== undefined) {\n        Ember.set(serializer, 'store', this);\n        _serializerCache[normalizedModelName] = serializer;\n        return serializer;\n      } // no serializer found for the specific model, fallback and check for application serializer\n\n\n      serializer = _serializerCache.application || owner.lookup('serializer:application');\n\n      if (serializer !== undefined) {\n        Ember.set(serializer, 'store', this);\n        _serializerCache[normalizedModelName] = serializer;\n        _serializerCache.application = serializer;\n        return serializer;\n      }\n\n      var serializerName;\n\n      {\n        // no model specific serializer or application serializer, check for the `defaultSerializer`\n        // property defined on the adapter\n        var adapter = this.adapterFor(modelName);\n        serializerName = Ember.get(adapter, 'defaultSerializer');\n        ( !(!serializerName) && Ember.deprecate(`store.serializerFor(\"${modelName}\") resolved the \"${serializerName}\" serializer via the deprecated \\`adapter.defaultSerializer\\` property.\\n\\n\\tPreviously, if no application or type-specific serializer was specified, the store would attempt to lookup a serializer via the \\`defaultSerializer\\` property on the type's adapter. This behavior is deprecated in favor of explicitly defining a type-specific serializer or application serializer`, !serializerName, {\n          id: 'ember-data:default-serializer',\n          until: '4.0',\n          url: 'https://deprecations.emberjs.com/ember-data/v3.x#toc_ember-data:default-serializers'\n        }));\n        serializer = serializerName ? _serializerCache[serializerName] || owner.lookup(`serializer:${serializerName}`) : undefined;\n      }\n\n      {\n        // in production this is handled by the re-export\n        if ( serializer === undefined) {\n          if (serializerName === '-json-api') {\n            var _Serializer3 = require$1('@ember-data/serializer/json-api').default;\n\n            owner.register(`serializer:-json-api`, _Serializer3);\n            serializer = owner.lookup(`serializer:-json-api`);\n            deprecateTestRegistration('serializer', '-json-api');\n          } else if (serializerName === '-rest') {\n            var _Serializer4 = require$1('@ember-data/serializer/rest').default;\n\n            owner.register(`serializer:-rest`, _Serializer4);\n            serializer = owner.lookup(`serializer:-rest`);\n            deprecateTestRegistration('serializer', '-rest');\n          } else if (serializerName === '-default') {\n            var _Serializer5 = require$1('@ember-data/serializer/json').default;\n\n            owner.register(`serializer:-default`, _Serializer5);\n            serializer = owner.lookup(`serializer:-default`);\n            serializer && deprecateTestRegistration('serializer', '-default');\n          }\n        }\n\n        if (serializer !== undefined) {\n          Ember.set(serializer, 'store', this);\n          _serializerCache[normalizedModelName] = serializer;\n          _serializerCache[serializerName] = serializer;\n          return serializer;\n        }\n      }\n\n      {\n        // final fallback, no model specific serializer, no application serializer, no\n        // `serializer` property on store: use the convenience JSONSerializer\n        serializer = _serializerCache['-default'] || owner.lookup('serializer:-default');\n\n        if ( serializer === undefined) {\n          var JSONSerializer = require$1('@ember-data/serializer/json').default;\n\n          owner.register('serializer:-default', JSONSerializer);\n          serializer = owner.lookup('serializer:-default');\n          serializer && deprecateTestRegistration('serializer', '-default');\n        }\n\n        ( !(!serializer) && Ember.deprecate(`store.serializerFor(\"${modelName}\") resolved the \"-default\" serializer via the deprecated \"-default\" lookup fallback.\\n\\n\\tPreviously, when no type-specific serializer, application serializer, or adapter.defaultSerializer had been defined by the app, the \"-default\" serializer would be used which defaulted to the \\`JSONSerializer\\`. This behavior is deprecated in favor of explicitly defining an application or type-specific serializer`, !serializer, {\n          id: 'ember-data:default-serializer',\n          until: '4.0',\n          url: 'https://deprecations.emberjs.com/ember-data/v3.x#toc_ember-data:default-serializers'\n        }));\n        ( !(serializer !== undefined) && Ember.assert(`No serializer was found for '${modelName}' and no 'application' serializer was found as a fallback`, serializer !== undefined));\n        Ember.set(serializer, 'store', this);\n        _serializerCache[normalizedModelName] = serializer;\n        _serializerCache['-default'] = serializer;\n        return serializer;\n      }\n    }\n\n    destroy() {\n      // enqueue destruction of any adapters/serializers we have created\n      for (var adapterName in this._adapterCache) {\n        var adapter = this._adapterCache[adapterName];\n\n        if (typeof adapter.destroy === 'function') {\n          adapter.destroy();\n        }\n      }\n\n      for (var serializerName in this._serializerCache) {\n        var serializer = this._serializerCache[serializerName];\n\n        if (typeof serializer.destroy === 'function') {\n          serializer.destroy();\n        }\n      }\n\n      return super.destroy();\n    }\n\n    willDestroy() {\n      super.willDestroy();\n      this.recordArrayManager.destroy();\n      identifierCacheFor(this).destroy();\n      this.unloadAll();\n\n      {\n        Ember.Test.unregisterWaiter(this.__asyncWaiter);\n        var shouldTrack = this.shouldTrackAsyncRequests;\n        var tracked = this._trackedAsyncRequests;\n        var isSettled = tracked.length === 0;\n\n        if (!isSettled) {\n          if (shouldTrack) {\n            throw new Error('Async Request leaks detected. Add a breakpoint here and set `store.generateStackTracesForTrackedRequests = true;`to inspect traces for leak origins:\\n\\t - ' + tracked.map(o => o.label).join('\\n\\t - '));\n          } else {\n            ( Ember.warn('Async Request leaks detected. Add a breakpoint here and set `store.generateStackTracesForTrackedRequests = true;`to inspect traces for leak origins:\\n\\t - ' + tracked.map(o => o.label).join('\\n\\t - '), false, {\n              id: 'ds.async.leak.detected'\n            }));\n          }\n        }\n      }\n    }\n\n    _updateRelationshipState(relationship) {\n      if (this._updatedRelationships.push(relationship) !== 1) {\n        return;\n      }\n\n      this._backburner.join(() => {\n        this._backburner.schedule('syncRelationships', this, this._flushUpdatedRelationships);\n      });\n    }\n\n    _flushUpdatedRelationships() {\n      var updated = this._updatedRelationships;\n\n      for (var i = 0, l = updated.length; i < l; i++) {\n        updated[i].flushCanonical();\n      }\n\n      updated.length = 0;\n    }\n\n    _updateInternalModel(internalModel) {\n      if (this._updatedInternalModels.push(internalModel) !== 1) {\n        return;\n      }\n\n      emberRun$2.schedule('actions', this, this._flushUpdatedInternalModels);\n    }\n\n    _flushUpdatedInternalModels() {\n      var updated = this._updatedInternalModels;\n\n      for (var i = 0, l = updated.length; i < l; i++) {\n        updated[i]._triggerDeferredTriggers();\n      }\n\n      updated.length = 0;\n    }\n\n  }\n\n  {\n    Ember.defineProperty(CoreStore.prototype, 'defaultAdapter', Ember.computed('adapter', function () {\n      ( Ember.deprecate(`store.adapterFor(modelName) resolved the (\"${this.adapter || '-json-api'}\") adapter via the deprecated \\`store.defaultAdapter\\` property.\\n\\n\\tPreviously, applications could define the store's \\`adapter\\` property which would be used by \\`defaultAdapter\\` and \\`adapterFor\\` as a fallback for when an adapter was not found by an exact name match. This behavior is deprecated in favor of explicitly defining an application or type-specific adapter.`, false, {\n        id: 'ember-data:default-adapter',\n        until: '4.0',\n        url: 'https://deprecations.emberjs.com/ember-data/v3.x#toc_ember-data:default-adapter'\n      }));\n      var adapter = this.adapter || '-json-api';\n      ( !(typeof adapter === 'string') && Ember.assert('You tried to set `adapter` property to an instance of `Adapter`, where it should be a name', typeof adapter === 'string'));\n      return this.adapterFor(adapter);\n    }));\n  }\n\n  function _commit(adapter, store, operation, snapshot) {\n    var internalModel = snapshot._internalModel;\n    var modelName = snapshot.modelName;\n    var modelClass = store.modelFor(modelName);\n    ( !(adapter) && Ember.assert(`You tried to update a record but you have no adapter (for ${modelName})`, adapter));\n    ( !(typeof adapter[operation] === 'function') && Ember.assert(`You tried to update a record but your adapter (for ${modelName}) does not implement '${operation}'`, typeof adapter[operation] === 'function'));\n    var promise = Ember.RSVP.Promise.resolve().then(() => adapter[operation](store, modelClass, snapshot));\n    var serializer = store.serializerFor(modelName);\n    var label = `DS: Extract and notify about ${operation} completion of ${internalModel}`;\n    ( !(promise !== undefined) && Ember.assert(`Your adapter's '${operation}' method must return a value, but it returned 'undefined'`, promise !== undefined));\n    promise = guardDestroyedStore(promise, store, label);\n    promise = _guard(promise, _bind(_objectIsAlive, internalModel));\n    return promise.then(adapterPayload => {\n      /*\n      Note to future spelunkers hoping to optimize.\n      We rely on this `run` to create a run loop if needed\n      that `store._push` and `store.didSaveRecord` will both share.\n       We use `join` because it is often the case that we\n      have an outer run loop available still from the first\n      call to `store._push`;\n      */\n      store._backburner.join(() => {\n        var payload, data, sideloaded;\n\n        if (adapterPayload) {\n          payload = normalizeResponseHelper(serializer, store, modelClass, adapterPayload, snapshot.id, operation);\n\n          if (payload.included) {\n            sideloaded = payload.included;\n          }\n\n          data = payload.data;\n        }\n\n        store.didSaveRecord(internalModel, {\n          data\n        }, operation); // seems risky, but if the tests pass might be fine?\n\n        if (sideloaded) {\n          store._push({\n            data: null,\n            included: sideloaded\n          });\n        }\n      });\n\n      return internalModel;\n    }, function (error) {\n      if (error && error.isAdapterError === true && error.code === 'InvalidError') {\n        var parsedErrors;\n\n        if (typeof serializer.extractErrors === 'function') {\n          parsedErrors = serializer.extractErrors(store, modelClass, error, snapshot.id);\n        } else {\n          parsedErrors = errorsArrayToHash(error.errors);\n        }\n\n        store.recordWasInvalid(internalModel, parsedErrors, error);\n      } else {\n        store.recordWasError(internalModel, error);\n      }\n\n      throw error;\n    }, label);\n  }\n\n  var assertDestroyingStore;\n  var assertDestroyedStoreOnly;\n\n  {\n    assertDestroyingStore = function assertDestroyedStore(store, method) {\n      if (!store.shouldAssertMethodCallsOnDestroyedStore) {\n        ( !(!(store.isDestroying || store.isDestroyed)) && Ember.deprecate(`Attempted to call store.${method}(), but the store instance has already been destroyed.`, !(store.isDestroying || store.isDestroyed), {\n          id: 'ember-data:method-calls-on-destroyed-store',\n          until: '3.8'\n        }));\n      } else {\n        ( !(!(store.isDestroying || store.isDestroyed)) && Ember.assert(`Attempted to call store.${method}(), but the store instance has already been destroyed.`, !(store.isDestroying || store.isDestroyed)));\n      }\n    };\n\n    assertDestroyedStoreOnly = function assertDestroyedStoreOnly(store, method) {\n      if (!store.shouldAssertMethodCallsOnDestroyedStore) {\n        ( !(!store.isDestroyed) && Ember.deprecate(`Attempted to call store.${method}(), but the store instance has already been destroyed.`, !store.isDestroyed, {\n          id: 'ember-data:method-calls-on-destroyed-store',\n          until: '3.8'\n        }));\n      } else {\n        ( !(!store.isDestroyed) && Ember.assert(`Attempted to call store.${method}(), but the store instance has already been destroyed.`, !store.isDestroyed));\n      }\n    };\n  }\n  /**\n   * Flag indicating whether all inverse records are available\n   *\n   * true if the inverse exists and is loaded (not empty)\n   * true if there is no inverse\n   * false if the inverse exists and is not loaded (empty)\n   *\n   * @return {boolean}\n   */\n\n\n  function areAllInverseRecordsLoaded(store, resource) {\n    var cache = identifierCacheFor(store);\n\n    if (Array.isArray(resource.data)) {\n      // treat as collection\n      // check for unloaded records\n      var hasEmptyRecords = resource.data.reduce((hasEmptyModel, resourceIdentifier) => {\n        return hasEmptyModel || internalModelForRelatedResource(store, cache, resourceIdentifier).isEmpty();\n      }, false);\n      return !hasEmptyRecords;\n    } else {\n      // treat as single resource\n      if (!resource.data) {\n        return true;\n      } else {\n        var internalModel = internalModelForRelatedResource(store, cache, resource.data);\n        return !internalModel.isEmpty();\n      }\n    }\n  }\n\n  function internalModelForRelatedResource(store, cache, resource) {\n    var identifier = cache.getOrCreateRecordIdentifier(resource);\n    return store._internalModelForResource(identifier);\n  }\n\n  function assertInDebug(msg, cond = false) {\n    if ( cond) {\n      throw new Error(msg);\n    }\n  }\n\n  function assertIdentifierHasId(identifier) {\n    assertInDebug(`Attempted to schedule a fetch for a record without an id.`, identifier.id === null);\n  }\n\n  function notifyChanges(identifier, value, record, store) {\n    if (value === 'attributes') {\n      record.eachAttribute(key => {\n        var currentValue = Ember.cacheFor(record, key);\n\n        var internalModel = store._internalModelForResource(identifier);\n\n        if (currentValue !== internalModel._recordData.getAttr(key)) {\n          record.notifyPropertyChange(key);\n        }\n      });\n    } else if (value === 'relationships') {\n      record.eachRelationship((key, meta) => {\n        var internalModel = store._internalModelForResource(identifier);\n\n        if (meta.kind === 'belongsTo') {\n          record.notifyPropertyChange(key);\n        } else if (meta.kind === 'hasMany') {\n          if (meta.options.async) {\n            record.notifyPropertyChange(key);\n            internalModel.hasManyRemovalCheck(key);\n          }\n\n          if (internalModel._manyArrayCache[key]) {\n            internalModel._manyArrayCache[key].retrieveLatest();\n          }\n        }\n      });\n    } else if (value === 'errors') {\n      var internalModel = store._internalModelForResource(identifier); //TODO guard\n\n\n      var errors = internalModel._recordData.getErrors(identifier);\n\n      record.invalidErrorsChanged(errors);\n    } else if (value === 'state') {\n      record.notifyPropertyChange('isNew');\n      record.notifyPropertyChange('isDeleted');\n    } else if (value === 'identity') {\n      record.notifyPropertyChange('id');\n    }\n  }\n\n  var _modelForMixin;\n\n  {\n    var _found$1;\n\n    _modelForMixin = function () {\n      if (!_found$1) {\n        _found$1 = require$1('@ember-data/model/-private')._modelForMixin;\n      }\n\n      return _found$1(...arguments);\n    };\n  }\n  /**\n   *\n   * @param store\n   * @param cache modelFactoryCache\n   * @param normalizedModelName already normalized modelName\n   * @return {*}\n   */\n\n  function getModelFactory(store, cache, normalizedModelName) {\n    var factory = cache[normalizedModelName];\n\n    if (!factory) {\n      factory = _lookupModelFactory(store, normalizedModelName);\n\n      if (!factory && true\n      /* HAS_MODEL_PACKAGE */\n      ) {\n        //Support looking up mixins as base types for polymorphic relationships\n        factory = _modelForMixin(store, normalizedModelName);\n      }\n\n      if (!factory) {\n        // we don't cache misses in case someone wants to register a missing model\n        return null;\n      }\n\n      var klass = factory.class;\n\n      if (klass.isModel) {\n        var hasOwnModelNameSet = klass.modelName && Object.prototype.hasOwnProperty.call(klass, 'modelName');\n\n        if (!hasOwnModelNameSet) {\n          Object.defineProperty(klass, 'modelName', {\n            value: normalizedModelName\n          });\n        }\n      }\n\n      cache[normalizedModelName] = factory;\n    }\n\n    return factory;\n  }\n  function _lookupModelFactory(store, normalizedModelName) {\n    var owner = Ember.getOwner(store);\n    return owner.factoryFor(`model:${normalizedModelName}`);\n  }\n\n  /**\n    The store service contains all of the data for records loaded from the server.\n    It is also responsible for creating instances of `Model` that wrap\n    the individual data for a record, so that they can be bound to in your\n    Handlebars templates.\n\n    By default, applications will have a single `Store` service that is\n    automatically created.\n\n    The store can be customized by extending the service in the following manner:\n\n    ```app/services/store.js\n    import Store from '@ember-data/store';\n\n    export default class MyStore extends Store {}\n    ```\n\n    You can retrieve models from the store in several ways. To retrieve a record\n    for a specific id, use the `Store`'s `findRecord()` method:\n\n    ```javascript\n    store.findRecord('person', 123).then(function (person) {\n    });\n    ```\n\n    By default, the store will talk to your backend using a standard\n    REST mechanism. You can customize how the store talks to your\n    backend by specifying a custom adapter:\n\n    ```app/adapters/application.js\n    import DS from 'ember-data';\n\n    export default Adapter.extend({\n    });\n    ```\n\n    You can learn more about writing a custom adapter by reading the `Adapter`\n    documentation.\n\n    ### Store createRecord() vs. push() vs. pushPayload()\n\n    The store provides multiple ways to create new record objects. They have\n    some subtle differences in their use which are detailed below:\n\n    [createRecord](Store/methods/createRecord?anchor=createRecord) is used for creating new\n    records on the client side. This will return a new record in the\n    `created.uncommitted` state. In order to persist this record to the\n    backend, you will need to call `record.save()`.\n\n    [push](Store/methods/push?anchor=push) is used to notify Ember Data's store of new or\n    updated records that exist in the backend. This will return a record\n    in the `loaded.saved` state. The primary use-case for `store#push` is\n    to notify Ember Data about record updates (full or partial) that happen\n    outside of the normal adapter methods (for example\n    [SSE](http://dev.w3.org/html5/eventsource/) or [Web\n    Sockets](http://www.w3.org/TR/2009/WD-websockets-20091222/)).\n\n    [pushPayload](Store/methods/pushPayload?anchor=pushPayload) is a convenience wrapper for\n    `store#push` that will deserialize payloads if the\n    Serializer implements a `pushPayload` method.\n\n    Note: When creating a new record using any of the above methods\n    Ember Data will update `RecordArray`s such as those returned by\n    `store#peekAll()` or `store#findAll()`. This means any\n    data bindings or computed properties that depend on the RecordArray\n    will automatically be synced to include the new or updated record\n    values.\n\n    @class Store\n    @main @ember-data/store\n    @extends Ember.Service\n  */\n  class Store extends CoreStore {\n    constructor(...args) {\n      super(...args);\n      this._modelFactoryCache = Object.create(null);\n      this._relationshipsDefCache = Object.create(null);\n      this._attributesDefCache = Object.create(null);\n    }\n\n    instantiateRecord(identifier, createRecordArgs, recordDataFor, notificationManager) {\n      var modelName = identifier.type;\n\n      var internalModel = this._internalModelForResource(identifier);\n\n      var createOptions = {\n        store: this,\n        _internalModel: internalModel,\n        currentState: internalModel.currentState,\n        container: null\n      };\n      Ember.assign(createOptions, createRecordArgs); // ensure that `getOwner(this)` works inside a model instance\n\n      Ember.setOwner(createOptions, Ember.getOwner(this));\n      delete createOptions.container;\n\n      var record = this._modelFactoryFor(modelName).create(createOptions); //todo optimize\n\n\n      notificationManager.subscribe(identifier, (identifier, value) => notifyChanges(identifier, value, record, this));\n      return record;\n    }\n\n    teardownRecord(record) {\n      record.destroy();\n    }\n    /**\n    Returns the model class for the particular `modelName`.\n     The class of a model might be useful if you want to get a list of all the\n    relationship names of the model, see\n    [`relationshipNames`](/ember-data/release/classes/Model?anchor=relationshipNames)\n    for example.\n     @method modelFor\n    @param {String} modelName\n    @return {Model}\n      */\n\n\n    modelFor(modelName) {\n      {\n        assertDestroyedStoreOnly$1(this, 'modelFor');\n      }\n\n      ( !(Ember.isPresent(modelName)) && Ember.assert(`You need to pass a model name to the store's modelFor method`, Ember.isPresent(modelName)));\n      ( !(typeof modelName === 'string') && Ember.assert(`Passing classes to store methods has been removed. Please pass a dasherized string instead of ${modelName}`, typeof modelName === 'string'));\n\n      var maybeFactory = this._modelFactoryFor(modelName); // for factorFor factory/class split\n\n\n      var klass = maybeFactory && maybeFactory.class ? maybeFactory.class : maybeFactory;\n\n      if (!klass || !klass.isModel) {\n        {\n          throw new Ember.Error(`No model was found for '${modelName}' and no schema handles the type`);\n        }\n      } else {\n        return klass;\n      }\n    }\n\n    _modelFactoryFor(modelName) {\n      {\n        assertDestroyedStoreOnly$1(this, '_modelFactoryFor');\n      }\n\n      ( !(Ember.isPresent(modelName)) && Ember.assert(`You need to pass a model name to the store's _modelFactoryFor method`, Ember.isPresent(modelName)));\n      ( !(typeof modelName === 'string') && Ember.assert(`Passing classes to store methods has been removed. Please pass a dasherized string instead of ${modelName}`, typeof modelName === 'string'));\n      var normalizedModelName = normalizeModelName(modelName);\n      var factory = getModelFactory(this, this._modelFactoryCache, normalizedModelName);\n      return factory;\n    }\n    /*\n    Returns whether a ModelClass exists for a given modelName\n    This exists for legacy support for the RESTSerializer,\n    which due to how it must guess whether a key is a model\n    must query for whether a match exists.\n     We should investigate an RFC to make this public or removing\n    this requirement.\n     @private\n    */\n\n\n    _hasModelFor(modelName) {\n      {\n        assertDestroyingStore$1(this, '_hasModelFor');\n      }\n\n      ( !(Ember.isPresent(modelName)) && Ember.assert(`You need to pass a model name to the store's hasModelFor method`, Ember.isPresent(modelName)));\n      ( !(typeof modelName === 'string') && Ember.assert(`Passing classes to store methods has been removed. Please pass a dasherized string instead of ${modelName}`, typeof modelName === 'string'));\n\n      {\n        ( !(Ember.isPresent(modelName)) && Ember.assert(`You need to pass a model name to the store's hasModelFor method`, Ember.isPresent(modelName)));\n        ( !(typeof modelName === 'string') && Ember.assert(`Passing classes to store methods has been removed. Please pass a dasherized string instead of ${modelName}`, typeof modelName === 'string'));\n        var normalizedModelName = normalizeModelName(modelName);\n        var factory = getModelFactory(this, this._modelFactoryCache, normalizedModelName);\n        return factory !== null;\n      }\n    }\n\n    _relationshipMetaFor(modelName, id, key) {\n      {\n        var modelClass = this.modelFor(modelName);\n        var relationshipsByName = Ember.get(modelClass, 'relationshipsByName');\n        return relationshipsByName.get(key);\n      }\n    }\n\n    _attributesDefinitionFor(modelName, identifier) {\n      {\n        var attributes = this._attributesDefCache[modelName];\n\n        if (attributes === undefined) {\n          var modelClass = this.modelFor(modelName);\n          var attributeMap = Ember.get(modelClass, 'attributes');\n          attributes = Object.create(null);\n          attributeMap.forEach((meta, name) => attributes[name] = meta);\n          this._attributesDefCache[modelName] = attributes;\n        }\n\n        return attributes;\n      }\n    }\n\n    _relationshipsDefinitionFor(modelName, identifier) {\n      {\n        var relationships = this._relationshipsDefCache[modelName];\n\n        if (relationships === undefined) {\n          var modelClass = this.modelFor(modelName);\n          relationships = Ember.get(modelClass, 'relationshipsObject') || null;\n          this._relationshipsDefCache[modelName] = relationships;\n        }\n\n        return relationships;\n      }\n    }\n\n    getSchemaDefinitionService() {\n      {\n        throw 'schema service is only available when custom model class feature flag is on';\n      }\n    }\n\n  }\n\n  var assertDestroyingStore$1;\n  var assertDestroyedStoreOnly$1;\n\n  {\n    assertDestroyingStore$1 = function assertDestroyedStore(store, method) {\n      if (!store.shouldAssertMethodCallsOnDestroyedStore) {\n        ( !(!(store.isDestroying || store.isDestroyed)) && Ember.deprecate(`Attempted to call store.${method}(), but the store instance has already been destroyed.`, !(store.isDestroying || store.isDestroyed), {\n          id: 'ember-data:method-calls-on-destroyed-store',\n          until: '3.8'\n        }));\n      } else {\n        ( !(!(store.isDestroying || store.isDestroyed)) && Ember.assert(`Attempted to call store.${method}(), but the store instance has already been destroyed.`, !(store.isDestroying || store.isDestroyed)));\n      }\n    };\n\n    assertDestroyedStoreOnly$1 = function assertDestroyedStoreOnly(store, method) {\n      if (!store.shouldAssertMethodCallsOnDestroyedStore) {\n        ( !(!store.isDestroyed) && Ember.deprecate(`Attempted to call store.${method}(), but the store instance has already been destroyed.`, !store.isDestroyed, {\n          id: 'ember-data:method-calls-on-destroyed-store',\n          until: '3.8'\n        }));\n      } else {\n        ( !(!store.isDestroyed) && Ember.assert(`Attempted to call store.${method}(), but the store instance has already been destroyed.`, !store.isDestroyed));\n      }\n    };\n  }\n\n  /**\n    @module @ember-data/store\n  */\n\n  /**\n    @method diffArray\n    @private\n    @param {Array} oldArray the old array\n    @param {Array} newArray the new array\n    @return {hash} {\n        firstChangeIndex: <integer>,  // null if no change\n        addedCount: <integer>,        // 0 if no change\n        removedCount: <integer>       // 0 if no change\n      }\n  */\n  function diffArray(oldArray, newArray) {\n    var oldLength = oldArray.length;\n    var newLength = newArray.length;\n    var shortestLength = Math.min(oldLength, newLength);\n    var firstChangeIndex = null; // null signifies no changes\n    // find the first change\n\n    for (var i = 0; i < shortestLength; i++) {\n      // compare each item in the array\n      if (oldArray[i] !== newArray[i]) {\n        firstChangeIndex = i;\n        break;\n      }\n    }\n\n    if (firstChangeIndex === null && newLength !== oldLength) {\n      // no change found in the overlapping block\n      // and array lengths differ,\n      // so change starts at end of overlap\n      firstChangeIndex = shortestLength;\n    }\n\n    var addedCount = 0;\n    var removedCount = 0;\n\n    if (firstChangeIndex !== null) {\n      // we found a change, find the end of the change\n      var unchangedEndBlockLength = shortestLength - firstChangeIndex; // walk back from the end of both arrays until we find a change\n\n      for (var _i = 1; _i <= shortestLength; _i++) {\n        // compare each item in the array\n        if (oldArray[oldLength - _i] !== newArray[newLength - _i]) {\n          unchangedEndBlockLength = _i - 1;\n          break;\n        }\n      }\n\n      addedCount = newLength - unchangedEndBlockLength - firstChangeIndex;\n      removedCount = oldLength - unchangedEndBlockLength - firstChangeIndex;\n    }\n\n    return {\n      firstChangeIndex,\n      addedCount,\n      removedCount\n    };\n  }\n\n  /**\n    @module @ember-data/store\n  */\n  function typeForRelationshipMeta(meta) {\n    var modelName;\n    modelName = meta.type || meta.key;\n    modelName = normalizeModelName(modelName);\n\n    if (meta.kind === 'hasMany') {\n      modelName = emberInflector.singularize(modelName);\n    }\n\n    return modelName;\n  }\n\n  function shouldFindInverse(relationshipMeta) {\n    var options = relationshipMeta.options;\n    return !(options && options.inverse === null);\n  }\n\n  class RelationshipDefinition {\n    constructor(meta) {\n      this.meta = meta;\n      this[BRAND_SYMBOL] = void 0;\n      this._type = '';\n      this.__inverseKey = '';\n      this.__inverseIsAsync = true;\n      this.__hasCalculatedInverse = false;\n      this.parentModelName = void 0;\n      this.inverse = void 0;\n      this.inverseIsAsync = void 0;\n      this.parentModelName = meta.parentModelName;\n    }\n\n    get key() {\n      return this.meta.key;\n    }\n\n    get kind() {\n      return this.meta.kind;\n    }\n\n    get type() {\n      if (this._type) {\n        return this._type;\n      }\n\n      this._type = typeForRelationshipMeta(this.meta);\n      return this._type;\n    }\n\n    get options() {\n      return this.meta.options;\n    }\n\n    get name() {\n      return this.meta.name;\n    }\n\n    _inverseKey(store, modelClass) {\n      if (this.__hasCalculatedInverse === false) {\n        this._calculateInverse(store, modelClass);\n      }\n\n      return this.__inverseKey;\n    }\n\n    _inverseIsAsync(store, modelClass) {\n      if (this.__hasCalculatedInverse === false) {\n        this._calculateInverse(store, modelClass);\n      }\n\n      return this.__inverseIsAsync;\n    }\n\n    _calculateInverse(store, modelClass) {\n      this.__hasCalculatedInverse = true;\n      var inverseKey, inverseIsAsync;\n      var inverse = null;\n\n      if (shouldFindInverse(this.meta)) {\n        inverse = modelClass.inverseFor(this.key, store);\n      } else {\n        modelClass.typeForRelationship(this.key, store);\n      }\n\n      if (inverse) {\n        inverseKey = inverse.name;\n        inverseIsAsync = isInverseAsync(inverse);\n      } else {\n        inverseKey = null;\n        inverseIsAsync = false;\n      }\n\n      this.__inverseKey = inverseKey;\n      this.__inverseIsAsync = inverseIsAsync;\n    }\n\n  }\n\n  function isInverseAsync(meta) {\n    var inverseAsync = meta.options && meta.options.async;\n    return typeof inverseAsync === 'undefined' ? true : inverseAsync;\n  }\n\n  function relationshipFromMeta(meta) {\n    return new RelationshipDefinition(meta);\n  }\n\n  exports.AdapterPopulatedRecordArray = AdapterPopulatedRecordArray;\n  exports.DeprecatedEvented = DeprecatedEvented$1;\n  exports.InternalModel = InternalModel;\n  exports.PromiseArray = PromiseArray;\n  exports.PromiseObject = PromiseObject;\n  exports.RecordArray = RecordArray;\n  exports.RecordArrayManager = RecordArrayManager;\n  exports.RecordDataStoreWrapper = RecordDataStoreWrapper;\n  exports.RootState = RootState$1;\n  exports.Snapshot = Snapshot;\n  exports.SnapshotRecordArray = SnapshotRecordArray;\n  exports.Store = Store;\n  exports._bind = _bind;\n  exports._guard = _guard;\n  exports._objectIsAlive = _objectIsAlive;\n  exports.coerceId = coerceId;\n  exports.diffArray = diffArray;\n  exports.errorsArrayToHash = errorsArrayToHash;\n  exports.errorsHashToArray = errorsHashToArray;\n  exports.guardDestroyedStore = guardDestroyedStore;\n  exports.identifierCacheFor = identifierCacheFor;\n  exports.normalizeModelName = normalizeModelName;\n  exports.recordDataFor = recordDataFor;\n  exports.recordIdentifierFor = recordIdentifierFor;\n  exports.relationshipFromMeta = relationshipFromMeta;\n  exports.setIdentifierForgetMethod = setIdentifierForgetMethod;\n  exports.setIdentifierGenerationMethod = setIdentifierGenerationMethod;\n  exports.setIdentifierResetMethod = setIdentifierResetMethod;\n  exports.setIdentifierUpdateMethod = setIdentifierUpdateMethod;\n  exports.typeForRelationshipMeta = typeForRelationshipMeta;\n  exports.upgradeForInternal = upgradeForInternal;\n\n  Object.defineProperty(exports, '__esModule', { value: true });\n\n});\n","define(\"@ember-data/store/index\", [\"exports\", \"@ember-data/store/-private\"], function (_exports, _private) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"default\", {\n    enumerable: true,\n    get: function () {\n      return _private.Store;\n    }\n  });\n  Object.defineProperty(_exports, \"normalizeModelName\", {\n    enumerable: true,\n    get: function () {\n      return _private.normalizeModelName;\n    }\n  });\n  Object.defineProperty(_exports, \"setIdentifierGenerationMethod\", {\n    enumerable: true,\n    get: function () {\n      return _private.setIdentifierGenerationMethod;\n    }\n  });\n  Object.defineProperty(_exports, \"setIdentifierUpdateMethod\", {\n    enumerable: true,\n    get: function () {\n      return _private.setIdentifierUpdateMethod;\n    }\n  });\n  Object.defineProperty(_exports, \"setIdentifierForgetMethod\", {\n    enumerable: true,\n    get: function () {\n      return _private.setIdentifierForgetMethod;\n    }\n  });\n  Object.defineProperty(_exports, \"setIdentifierResetMethod\", {\n    enumerable: true,\n    get: function () {\n      return _private.setIdentifierResetMethod;\n    }\n  });\n  Object.defineProperty(_exports, \"recordIdentifierFor\", {\n    enumerable: true,\n    get: function () {\n      return _private.recordIdentifierFor;\n    }\n  });\n});","define('@ember/ordered-set/index', ['exports'], function (exports) {\n  'use strict';\n\n  Object.defineProperty(exports, \"__esModule\", {\n    value: true\n  });\n\n\n  const NEEDS_CUSTOM_ORDERED_SET = true;\n\n  let OrderedSet;\n\n  if (NEEDS_CUSTOM_ORDERED_SET) {\n    /**\n    @class OrderedSet\n    @constructor\n    */\n    OrderedSet = class OrderedSet {\n      constructor() {\n        this.clear();\n      }\n\n      /**\n      @method create\n      @static\n      @return {OrderedSet}\n      */\n      static create() {\n        let Constructor = this;\n        return new Constructor();\n      }\n\n      /**\n      @method clear\n      */\n      clear() {\n        this.presenceSet = Object.create(null);\n        this.list = [];\n        this.size = 0;\n      }\n\n      /**\n      @method add\n      @param {*} obj\n      @param {string} [_guid] (for internal use)\n      @return {OrderedSet}\n      */\n      add(obj, _guid) {\n        let guid = _guid || Ember.guidFor(obj);\n        let presenceSet = this.presenceSet;\n        let list = this.list;\n\n        if (presenceSet[guid] !== true) {\n          presenceSet[guid] = true;\n          this.size = list.push(obj);\n        }\n\n        return this;\n      }\n\n      /**\n      @method delete\n      @param {*} obj\n      @param {string} [_guid] (for internal use)\n      @return {Boolean}\n      */\n      delete(obj, _guid) {\n        let guid = _guid || Ember.guidFor(obj);\n        let presenceSet = this.presenceSet;\n        let list = this.list;\n\n        if (presenceSet[guid] === true) {\n          delete presenceSet[guid];\n          let index = list.indexOf(obj);\n          if (index > -1) {\n            list.splice(index, 1);\n          }\n          this.size = list.length;\n          return true;\n        } else {\n          return false;\n        }\n      }\n\n      /**\n      @method isEmpty\n      @return {Boolean}\n      */\n      isEmpty() {\n        return this.size === 0;\n      }\n\n      /**\n      @method has\n      @param {*} obj\n      @return {Boolean}\n      */\n      has(obj) {\n        if (this.size === 0) {\n          return false;\n        }\n\n        let guid = Ember.guidFor(obj);\n        let presenceSet = this.presenceSet;\n\n        return presenceSet[guid] === true;\n      }\n\n      /**\n      @method forEach\n      @param {Function} fn\n      @param self\n      */\n      forEach(fn /*, ...thisArg*/) {\n        (true && !(typeof fn === 'function') && Ember.assert(`${Object.prototype.toString.call(fn)} is not a function`, typeof fn === 'function'));\n\n\n        if (this.size === 0) {\n          return;\n        }\n\n        let list = this.list;\n\n        if (arguments.length === 2) {\n          for (let i = 0; i < list.length; i++) {\n            fn.call(arguments[1], list[i]);\n          }\n        } else {\n          for (let i = 0; i < list.length; i++) {\n            fn(list[i]);\n          }\n        }\n      }\n\n      /**\n      @method toArray\n      @return {Array}\n      */\n      toArray() {\n        return this.list.slice();\n      }\n\n      /**\n      @method copy\n      @return {OrderedSet}\n      */\n      copy() {\n        let Constructor = this.constructor;\n        let set = new Constructor();\n\n        set.presenceSet = Object.create(null);\n\n        for (let prop in this.presenceSet) {\n          // hasOwnPropery is not needed because obj is Object.create(null);\n          set.presenceSet[prop] = this.presenceSet[prop];\n        }\n\n        set.list = this.toArray();\n        set.size = this.size;\n\n        return set;\n      }\n    };\n  } else {\n    OrderedSet = Ember.__OrderedSet__ || Ember.OrderedSet;\n  }\n\n  exports.default = OrderedSet;\n});","define(\"@glimmer/component/-private/base-component-manager\", [\"exports\", \"@glimmer/component/-private/component\"], function (_exports, _component) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = BaseComponentManager;\n\n  function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }\n\n  /**\n   * This factory function returns a component manager class with common behavior\n   * that can be extend to add Glimmer.js- or Ember.js-specific functionality. As\n   * these environments converge, the need for two component manager\n   * implementations (and thus this factory) should go away.\n   */\n  function BaseComponentManager(setOwner, getOwner, capabilities) {\n    var _temp;\n\n    return _temp = class {\n      static create(attrs) {\n        let owner = getOwner(attrs);\n        return new this(owner);\n      }\n\n      constructor(owner) {\n        _defineProperty(this, \"capabilities\", capabilities);\n\n        setOwner(this, owner);\n      }\n\n      createComponent(ComponentClass, args) {\n        if (true\n        /* DEBUG */\n        ) {\n          _component.ARGS_SET.set(args.named, true);\n        }\n\n        return new ComponentClass(getOwner(this), args.named);\n      }\n\n      getContext(component) {\n        return component;\n      }\n\n    }, _temp;\n  }\n});","define(\"@glimmer/component/-private/component\", [\"exports\", \"@glimmer/component/-private/owner\", \"@glimmer/component/-private/destroyables\"], function (_exports, _owner, _destroyables) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = _exports.ARGS_SET = void 0;\n\n  function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }\n\n  let ARGS_SET;\n  _exports.ARGS_SET = ARGS_SET;\n\n  if (true\n  /* DEBUG */\n  ) {\n    _exports.ARGS_SET = ARGS_SET = new WeakMap();\n  }\n  /**\n   * The `Component` class defines an encapsulated UI element that is rendered to\n   * the DOM. A component is made up of a template and, optionally, this component\n   * object.\n   *\n   * ## Defining a Component\n   *\n   * To define a component, subclass `Component` and add your own properties,\n   * methods and lifecycle hooks:\n   *\n   * ```ts\n   * import Component from '@glimmer/component';\n   *\n   * export default class extends Component {\n   * }\n   * ```\n   *\n   * ## Lifecycle Hooks\n   *\n   * Lifecycle hooks allow you to respond to changes to a component, such as when\n   * it gets created, rendered, updated or destroyed. To add a lifecycle hook to a\n   * component, implement the hook as a method on your component subclass.\n   *\n   * For example, to be notified when Glimmer has rendered your component so you\n   * can attach a legacy jQuery plugin, implement the `didInsertElement()` method:\n   *\n   * ```ts\n   * import Component from '@glimmer/component';\n   *\n   * export default class extends Component {\n   *   didInsertElement() {\n   *     $(this.element).pickadate();\n   *   }\n   * }\n   * ```\n   *\n   * ## Data for Templates\n   *\n   * `Component`s have two different kinds of data, or state, that can be\n   * displayed in templates:\n   *\n   * 1. Arguments\n   * 2. Properties\n   *\n   * Arguments are data that is passed in to a component from its parent\n   * component. For example, if I have a `UserGreeting` component, I can pass it\n   * a name and greeting to use:\n   *\n   * ```hbs\n   * <UserGreeting @name=\"Ricardo\" @greeting=\"Olá\" />\n   * ```\n   *\n   * Inside my `UserGreeting` template, I can access the `@name` and `@greeting`\n   * arguments that I've been given:\n   *\n   * ```hbs\n   * {{@greeting}}, {{@name}}!\n   * ```\n   *\n   * Arguments are also available inside my component:\n   *\n   * ```ts\n   * console.log(this.args.greeting); // prints \"Olá\"\n   * ```\n   *\n   * Properties, on the other hand, are internal to the component and declared in\n   * the class. You can use properties to store data that you want to show in the\n   * template, or pass to another component as an argument.\n   *\n   * ```ts\n   * import Component from '@glimmer/component';\n   *\n   * export default class extends Component {\n   *   user = {\n   *     name: 'Robbie'\n   *   }\n   * }\n   * ```\n   *\n   * In the above example, we've defined a component with a `user` property that\n   * contains an object with its own `name` property.\n   *\n   * We can render that property in our template:\n   *\n   * ```hbs\n   * Hello, {{user.name}}!\n   * ```\n   *\n   * We can also take that property and pass it as an argument to the\n   * `UserGreeting` component we defined above:\n   *\n   * ```hbs\n   * <UserGreeting @greeting=\"Hello\" @name={{user.name}} />\n   * ```\n   *\n   * ## Arguments vs. Properties\n   *\n   * Remember, arguments are data that was given to your component by its parent\n   * component, and properties are data your component has defined for itself.\n   *\n   * You can tell the difference between arguments and properties in templates\n   * because arguments always start with an `@` sign (think \"A is for arguments\"):\n   *\n   * ```hbs\n   * {{@firstName}}\n   * ```\n   *\n   * We know that `@firstName` came from the parent component, not the current\n   * component, because it starts with `@` and is therefore an argument.\n   *\n   * On the other hand, if we see:\n   *\n   * ```hbs\n   * {{name}}\n   * ```\n   *\n   * We know that `name` is a property on the component. If we want to know where\n   * the data is coming from, we can go look at our component class to find out.\n   *\n   * Inside the component itself, arguments always show up inside the component's\n   * `args` property. For example, if `{{@firstName}}` is `Tom` in the template,\n   * inside the component `this.args.firstName` would also be `Tom`.\n   */\n\n\n  class BaseComponent {\n    /**\n     * Constructs a new component and assigns itself the passed properties. You\n     * should not construct new components yourself. Instead, Glimmer will\n     * instantiate new components automatically as it renders.\n     *\n     * @param owner\n     * @param args\n     */\n    constructor(owner, args) {\n      _defineProperty(this, \"args\", void 0);\n\n      if (true\n      /* DEBUG */\n      && !(owner !== null && typeof owner === 'object' && ARGS_SET.has(args))) {\n        throw new Error(`You must pass both the owner and args to super() in your component: ${this.constructor.name}. You can pass them directly, or use ...arguments to pass all arguments through.`);\n      }\n\n      this.args = args;\n      (0, _owner.setOwner)(this, owner);\n    }\n    /**\n     * Named arguments passed to the component from its parent component.\n     * They can be accessed in JavaScript via `this.args.argumentName` and in the template via `@argumentName`.\n     *\n     * Say you have the following component, which will have two `args`, `firstName` and `lastName`:\n     *\n     * ```hbs\n     * <my-component @firstName=\"Arthur\" @lastName=\"Dent\" />\n     * ```\n     *\n     * If you needed to calculate `fullName` by combining both of them, you would do:\n     *\n     * ```ts\n     * didInsertElement() {\n     *   console.log(`Hi, my full name is ${this.args.firstName} ${this.args.lastName}`);\n     * }\n     * ```\n     *\n     * While in the template you could do:\n     *\n     * ```hbs\n     * <p>Welcome, {{@firstName}} {{@lastName}}!</p>\n     * ```\n     */\n\n\n    get isDestroying() {\n      return (0, _destroyables.isDestroying)(this);\n    }\n\n    get isDestroyed() {\n      return (0, _destroyables.isDestroyed)(this);\n    }\n    /**\n     * Called before the component has been removed from the DOM.\n     */\n\n\n    willDestroy() {}\n\n  }\n\n  _exports.default = BaseComponent;\n});","define(\"@glimmer/component/-private/destroyables\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.setDestroying = setDestroying;\n  _exports.setDestroyed = setDestroyed;\n  _exports.isDestroying = isDestroying;\n  _exports.isDestroyed = isDestroyed;\n  const DESTROYING = new WeakMap();\n  const DESTROYED = new WeakMap(); // TODO: remove once glimmer.js is updated to glimmer-vm 0.54.0+ and can use the destroyables API directly\n\n  function setDestroying(component) {\n    DESTROYING.set(component, true);\n  }\n\n  function setDestroyed(component) {\n    DESTROYED.set(component, true);\n  }\n\n  function isDestroying(component) {\n    return DESTROYING.has(component);\n  }\n\n  function isDestroyed(component) {\n    return DESTROYED.has(component);\n  }\n});","define(\"@glimmer/component/-private/ember-component-manager\", [\"exports\", \"@glimmer/component/-private/base-component-manager\", \"@glimmer/component/-private/destroyables\"], function (_exports, _baseComponentManager, _destroyables) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n  const CAPABILITIES = true ? Ember._componentManagerCapabilities('3.13', {\n    destructor: true,\n    asyncLifecycleCallbacks: false,\n    updateHook: false\n  }) : Ember._componentManagerCapabilities('3.4', {\n    destructor: true,\n    asyncLifecycleCallbacks: false\n  });\n  const scheduledDestroyComponent = false // @ts-ignore\n  // @ts-ignore\n  ? undefined : (component, meta) => {\n    if (component.isDestroyed) {\n      return;\n    }\n\n    Ember.destroy(component);\n    meta.setSourceDestroyed();\n    (0, _destroyables.setDestroyed)(component);\n  };\n  const destroy = false ? Ember.__loader.require('@glimmer/runtime').destroy : component => {\n    if (component.isDestroying) {\n      return;\n    }\n\n    let meta = Ember.meta(component);\n    meta.setSourceDestroying();\n    (0, _destroyables.setDestroying)(component);\n    Ember.run.schedule('actions', component, component.willDestroy);\n    Ember.run.schedule('destroy', void 0, scheduledDestroyComponent, component, meta);\n  };\n  const registerDestructor = false ? Ember.__loader.require('@glimmer/runtime').registerDestructor : undefined;\n  /**\n   * This component manager runs in Ember.js environments and extends the base component manager to:\n   *\n   * 1. Properly destroy the component's associated `meta` data structure\n   * 2. Schedule destruction using Ember's runloop\n   */\n\n  class EmberGlimmerComponentManager extends (0, _baseComponentManager.default)(Ember.setOwner, Ember.getOwner, CAPABILITIES) {\n    createComponent(ComponentClass, args) {\n      const component = super.createComponent(ComponentClass, args);\n\n      if (false) {\n        registerDestructor(component, () => {\n          component.willDestroy();\n        });\n      }\n\n      return component;\n    }\n\n    destroyComponent(component) {\n      destroy(component);\n    }\n\n  }\n\n  // In Ember 3.12 and earlier, the updateComponent hook was mandatory.\n  // As of Ember 3.13, the `args` object is stable and each property of the\n  // object participates in the autotrack stack on its own. This means we do not\n  // need to set the `args` property on the component instance to invalidate\n  // tracked getters that rely on `args`, and therefore don't require the `updateComponent`\n  // hook at all.\n  if (!true) {\n    EmberGlimmerComponentManager.prototype.updateComponent = function updateComponent(component, args) {\n      let argSnapshot = args.named;\n\n      if (true\n      /* DEBUG */\n      ) {\n        argSnapshot = Object.freeze(argSnapshot);\n      }\n\n      Ember.set(component, 'args', argSnapshot);\n    };\n  }\n\n  var _default = EmberGlimmerComponentManager;\n  _exports.default = _default;\n});","define(\"@glimmer/component/-private/owner\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.setOwner = void 0;\n  var setOwner = Ember.setOwner;\n  _exports.setOwner = setOwner;\n});","define(\"@glimmer/component/index\", [\"exports\", \"@glimmer/component/-private/ember-component-manager\", \"@glimmer/component/-private/component\"], function (_exports, _emberComponentManager, _component) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n  let GlimmerComponent = _component.default;\n\n  if (true\n  /* DEBUG */\n  ) {\n    // Add assertions against using Glimmer.js only APIs\n    // TODO: Add GlimmerComponent API docs link to these messages once API docs are live\n    function throwMethodUseError(methodName) {\n      throw new Error(`You attempted to define the '${methodName}' method on a Glimmer Component, but that lifecycle hook does not exist in Ember.js applications, it only exists in Glimmer.js apps. You can rename this method, and you can trigger it using a modifier such as {{did-insert}} from '@ember/render-modifiers': https://github.com/emberjs/ember-render-modifiers.`);\n    }\n\n    function throwPropertyUseError(propertyName) {\n      throw new Error(`You attempted to access the '${propertyName}' property on a Glimmer Component, but that property does not exist in Ember.js applications, it only exists in Glimmer.js apps. You define a class field with the same name on your component class and it will overwrite this error message, but it will not be used by the framework.`);\n    }\n\n    GlimmerComponent = class GlimmerDebugComponent extends GlimmerComponent {\n      constructor(owner, args) {\n        super(owner, args);\n\n        if (typeof this['didInsertElement'] === 'function') {\n          throwMethodUseError('didInsertElement');\n        }\n\n        if (typeof this['didUpdate'] === 'function') {\n          throwMethodUseError('didUpdate');\n        }\n      }\n\n    };\n    let proto = GlimmerComponent.prototype;\n\n    function defineErrorProp(proto, key, getterMethod) {\n      Object.defineProperty(proto, key, {\n        get: () => getterMethod(key),\n\n        set(value) {\n          Object.defineProperty(this, key, {\n            value\n          });\n        }\n\n      });\n    } // Methods should still throw whenever they are accessed\n\n\n    defineErrorProp(proto, 'bounds', throwPropertyUseError);\n    defineErrorProp(proto, 'element', throwPropertyUseError);\n    defineErrorProp(proto, 'debugName', throwPropertyUseError);\n  }\n\n  if (true) {\n    Ember._setComponentManager(owner => {\n      return new _emberComponentManager.default(owner);\n    }, GlimmerComponent);\n  } else {\n    Ember._setComponentManager('glimmer', GlimmerComponent);\n  }\n\n  var _default = GlimmerComponent;\n  _exports.default = _default;\n});","define('ember-cli-app-version/initializer-factory', ['exports'], function (exports) {\n  'use strict';\n\n  Object.defineProperty(exports, \"__esModule\", {\n    value: true\n  });\n  exports.default = initializerFactory;\n\n\n  const {\n    libraries\n  } = Ember;\n\n  function initializerFactory(name, version) {\n    let registered = false;\n\n    return function () {\n      if (!registered && name && version) {\n        let appName = Ember.String.classify(name);\n        libraries.register(appName, version);\n        registered = true;\n      }\n    };\n  }\n});","define(\"ember-cli-app-version/utils/regexp\", [\"exports\"], function (exports) {\n  \"use strict\";\n\n  Object.defineProperty(exports, \"__esModule\", {\n    value: true\n  });\n  const versionRegExp = exports.versionRegExp = /\\d+[.]\\d+[.]\\d+/; // Match any number of 3 sections of digits separated by .\n  const versionExtendedRegExp = exports.versionExtendedRegExp = /\\d+[.]\\d+[.]\\d+-[a-z]*([.]\\d+)?/; // Match the above but also hyphen followed by any number of lowercase letters, then optionally period and digits\n  const shaRegExp = exports.shaRegExp = /[a-z\\d]{8}$/; // Match 8 lowercase letters and digits, at the end of the string only (to avoid matching with version extended part)\n});","define(\"ember-cli-fastboot/instance-initializers/clear-double-boot\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.clearHtml = clearHtml;\n  _exports.default = void 0;\n\n  // When using `ember serve` when fastboot addon is installed the application\n  // output will already be rendered to the DOM when the actual JavaScript\n  // loads. Ember does not automatically clear its `rootElement` so this\n  // leads to the \"double\" applications being visible at once (only the\n  // \"bottom\" one is running via JS and is interactive).\n  //\n  // This removes any pre-rendered ember-view elements, so that the booting\n  // application will replace the pre-rendered output\n  function clearHtml() {\n    let current = document.getElementById('fastboot-body-start');\n    let endMarker = document.getElementById('fastboot-body-end');\n\n    if (current && endMarker) {\n      let shoeboxNodes = document.querySelectorAll('[type=\"fastboot/shoebox\"]');\n      let shoeboxNodesArray = []; // Note that IE11 doesn't support more concise options like Array.from, so we have to do something like this\n\n      for (let i = 0; i < shoeboxNodes.length; i++) {\n        shoeboxNodesArray.push(shoeboxNodes[i]);\n      }\n\n      let parent = current.parentElement;\n      let nextNode;\n\n      do {\n        nextNode = current.nextSibling;\n        parent.removeChild(current);\n        current = nextNode;\n      } while (nextNode && nextNode !== endMarker && shoeboxNodesArray.indexOf(nextNode) < 0);\n\n      endMarker.parentElement.removeChild(endMarker);\n    }\n  }\n\n  var _default = {\n    name: \"clear-double-boot\",\n\n    initialize(instance) {\n      if (typeof FastBoot === 'undefined') {\n        var originalDidCreateRootView = instance.didCreateRootView;\n\n        instance.didCreateRootView = function () {\n          clearHtml();\n          originalDidCreateRootView.apply(instance, arguments);\n        };\n      }\n    }\n\n  };\n  _exports.default = _default;\n});","define(\"ember-cli-fastboot/locations/none\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n  const TEMPORARY_REDIRECT_CODE = 307;\n\n  var _default = Ember.NoneLocation.extend({\n    implementation: 'fastboot',\n    fastboot: Ember.inject.service(),\n    _config: Ember.computed(function () {\n      return Ember.getOwner(this).resolveRegistration('config:environment');\n    }),\n    _fastbootHeadersEnabled: Ember.computed.bool('_config.fastboot.fastbootHeaders'),\n    _redirectCode: Ember.computed(function () {\n      return Ember.get(this, '_config.fastboot.redirectCode') || TEMPORARY_REDIRECT_CODE;\n    }),\n    _response: Ember.computed.readOnly('fastboot.response'),\n    _request: Ember.computed.readOnly('fastboot.request'),\n\n    setURL(path) {\n      if (Ember.get(this, 'fastboot.isFastBoot')) {\n        let response = Ember.get(this, '_response');\n        let currentPath = Ember.get(this, 'path');\n        let isInitialPath = !currentPath || currentPath.length === 0;\n\n        if (!isInitialPath) {\n          path = this.formatURL(path);\n          let isTransitioning = currentPath !== path;\n\n          if (isTransitioning) {\n            let host = Ember.get(this, '_request.host');\n            let redirectURL = `//${host}${path}`;\n            response.statusCode = this.get('_redirectCode');\n            response.headers.set('location', redirectURL);\n          }\n        } // for testing and debugging\n\n\n        if (Ember.get(this, '_fastbootHeadersEnabled')) {\n          response.headers.set('x-fastboot-path', path);\n        }\n      }\n\n      this._super(...arguments);\n    }\n\n  });\n\n  _exports.default = _default;\n});","define(\"ember-cli-fastboot/services/fastboot\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /* global FastBoot */\n  const RequestObject = Ember.Object.extend({\n    init() {\n      this._super(...arguments);\n\n      let request = this.request;\n      delete this.request;\n      this.method = request.method;\n      this.body = request.body;\n      this.cookies = request.cookies;\n      this.headers = request.headers;\n      this.queryParams = request.queryParams;\n      this.path = request.path;\n      this.protocol = request.protocol;\n\n      this._host = function () {\n        return request.host();\n      };\n    },\n\n    host: Ember.computed(function () {\n      return this._host();\n    })\n  });\n  const Shoebox = Ember.Object.extend({\n    put(key, value) {\n      (true && !(this.get('fastboot.isFastBoot')) && Ember.assert('shoebox.put is only invoked from the FastBoot rendered application', this.get('fastboot.isFastBoot')));\n      (true && !(typeof key === 'string') && Ember.assert('the provided key is a string', typeof key === 'string'));\n      let fastbootInfo = this.get('fastboot._fastbootInfo');\n\n      if (!fastbootInfo.shoebox) {\n        fastbootInfo.shoebox = {};\n      }\n\n      fastbootInfo.shoebox[key] = value;\n    },\n\n    retrieve(key) {\n      if (this.get('fastboot.isFastBoot')) {\n        let shoebox = this.get('fastboot._fastbootInfo.shoebox');\n\n        if (!shoebox) {\n          return;\n        }\n\n        return shoebox[key];\n      }\n\n      let shoeboxItem = this.get(key);\n\n      if (shoeboxItem) {\n        return shoeboxItem;\n      }\n\n      let el = document.querySelector(`#shoebox-${key}`);\n\n      if (!el) {\n        return;\n      }\n\n      let valueString = el.textContent;\n\n      if (!valueString) {\n        return;\n      }\n\n      shoeboxItem = JSON.parse(valueString);\n      this.set(key, shoeboxItem);\n      return shoeboxItem;\n    }\n\n  });\n  const FastBootService = Ember.Service.extend({\n    cookies: Ember.computed.deprecatingAlias('request.cookies', {\n      id: 'fastboot.cookies-to-request',\n      until: '0.9.9'\n    }),\n    headers: Ember.computed.deprecatingAlias('request.headers', {\n      id: 'fastboot.headers-to-request',\n      until: '0.9.9'\n    }),\n    isFastBoot: typeof FastBoot !== 'undefined',\n\n    init() {\n      this._super(...arguments);\n\n      let shoebox = Shoebox.create({\n        fastboot: this\n      });\n      this.set('shoebox', shoebox);\n    },\n\n    host: Ember.computed(function () {\n      (true && !(false) && Ember.deprecate('Usage of fastboot service\\'s `host` property is deprecated.  Please use `request.host` instead.', false, {\n        id: 'fastboot.host-to-request',\n        until: '0.9.9'\n      }));\n      return this._fastbootInfo.request.host();\n    }),\n    response: Ember.computed.readOnly('_fastbootInfo.response'),\n    metadata: Ember.computed.readOnly('_fastbootInfo.metadata'),\n    request: Ember.computed(function () {\n      if (!this.isFastBoot) return null;\n      return RequestObject.create({\n        request: Ember.get(this, '_fastbootInfo.request')\n      });\n    }),\n\n    deferRendering(promise) {\n      (true && !(typeof promise.then === 'function') && Ember.assert('deferRendering requires a promise or thennable object', typeof promise.then === 'function'));\n\n      this._fastbootInfo.deferRendering(promise);\n    }\n\n  });\n  var _default = FastBootService;\n  _exports.default = _default;\n});","define('ember-data/-private', ['exports', '@ember-data/store', 'ember-data/version', '@ember-data/model/-private', '@ember-data/store/-private', '@ember-data/record-data/-private'], function (exports, store, VERSION, Private, Private$1, Private$2) { 'use strict';\n\n  store = store && Object.prototype.hasOwnProperty.call(store, 'default') ? store['default'] : store;\n  VERSION = VERSION && Object.prototype.hasOwnProperty.call(VERSION, 'default') ? VERSION['default'] : VERSION;\n\n  /**\n   * @property VERSION\n   * @public\n   * @static\n   * @for @ember-data\n   */\n\n  var DS = Ember.Namespace.create({\n    VERSION: VERSION,\n    name: 'DS'\n  });\n\n  if (Ember.libraries) {\n    Ember.libraries.registerCoreLibrary('Ember Data', VERSION);\n  }\n\n  exports.Store = store;\n  Object.defineProperty(exports, 'Errors', {\n    enumerable: true,\n    get: function () {\n      return Private.Errors;\n    }\n  });\n  Object.defineProperty(exports, 'ManyArray', {\n    enumerable: true,\n    get: function () {\n      return Private.ManyArray;\n    }\n  });\n  Object.defineProperty(exports, 'PromiseManyArray', {\n    enumerable: true,\n    get: function () {\n      return Private.PromiseManyArray;\n    }\n  });\n  Object.defineProperty(exports, 'AdapterPopulatedRecordArray', {\n    enumerable: true,\n    get: function () {\n      return Private$1.AdapterPopulatedRecordArray;\n    }\n  });\n  Object.defineProperty(exports, 'InternalModel', {\n    enumerable: true,\n    get: function () {\n      return Private$1.InternalModel;\n    }\n  });\n  Object.defineProperty(exports, 'PromiseArray', {\n    enumerable: true,\n    get: function () {\n      return Private$1.PromiseArray;\n    }\n  });\n  Object.defineProperty(exports, 'PromiseObject', {\n    enumerable: true,\n    get: function () {\n      return Private$1.PromiseObject;\n    }\n  });\n  Object.defineProperty(exports, 'RecordArray', {\n    enumerable: true,\n    get: function () {\n      return Private$1.RecordArray;\n    }\n  });\n  Object.defineProperty(exports, 'RecordArrayManager', {\n    enumerable: true,\n    get: function () {\n      return Private$1.RecordArrayManager;\n    }\n  });\n  Object.defineProperty(exports, 'RootState', {\n    enumerable: true,\n    get: function () {\n      return Private$1.RootState;\n    }\n  });\n  Object.defineProperty(exports, 'Snapshot', {\n    enumerable: true,\n    get: function () {\n      return Private$1.Snapshot;\n    }\n  });\n  Object.defineProperty(exports, 'SnapshotRecordArray', {\n    enumerable: true,\n    get: function () {\n      return Private$1.SnapshotRecordArray;\n    }\n  });\n  Object.defineProperty(exports, 'coerceId', {\n    enumerable: true,\n    get: function () {\n      return Private$1.coerceId;\n    }\n  });\n  Object.defineProperty(exports, 'normalizeModelName', {\n    enumerable: true,\n    get: function () {\n      return Private$1.normalizeModelName;\n    }\n  });\n  Object.defineProperty(exports, 'RecordData', {\n    enumerable: true,\n    get: function () {\n      return Private$2.RecordData;\n    }\n  });\n  Object.defineProperty(exports, 'Relationship', {\n    enumerable: true,\n    get: function () {\n      return Private$2.Relationship;\n    }\n  });\n  exports.DS = DS;\n\n  Object.defineProperty(exports, '__esModule', { value: true });\n\n});\n","define(\"ember-data/adapter\", [\"exports\", \"@ember-data/adapter\"], function (_exports, _adapter) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"default\", {\n    enumerable: true,\n    get: function () {\n      return _adapter.default;\n    }\n  });\n});","define(\"ember-data/adapters/errors\", [\"exports\", \"@ember-data/adapter/error\"], function (_exports, _error) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"AbortError\", {\n    enumerable: true,\n    get: function () {\n      return _error.AbortError;\n    }\n  });\n  Object.defineProperty(_exports, \"AdapterError\", {\n    enumerable: true,\n    get: function () {\n      return _error.default;\n    }\n  });\n  Object.defineProperty(_exports, \"ConflictError\", {\n    enumerable: true,\n    get: function () {\n      return _error.ConflictError;\n    }\n  });\n  Object.defineProperty(_exports, \"ForbiddenError\", {\n    enumerable: true,\n    get: function () {\n      return _error.ForbiddenError;\n    }\n  });\n  Object.defineProperty(_exports, \"InvalidError\", {\n    enumerable: true,\n    get: function () {\n      return _error.InvalidError;\n    }\n  });\n  Object.defineProperty(_exports, \"NotFoundError\", {\n    enumerable: true,\n    get: function () {\n      return _error.NotFoundError;\n    }\n  });\n  Object.defineProperty(_exports, \"ServerError\", {\n    enumerable: true,\n    get: function () {\n      return _error.ServerError;\n    }\n  });\n  Object.defineProperty(_exports, \"TimeoutError\", {\n    enumerable: true,\n    get: function () {\n      return _error.TimeoutError;\n    }\n  });\n  Object.defineProperty(_exports, \"UnauthorizedError\", {\n    enumerable: true,\n    get: function () {\n      return _error.UnauthorizedError;\n    }\n  });\n  Object.defineProperty(_exports, \"errorsArrayToHash\", {\n    enumerable: true,\n    get: function () {\n      return _error.errorsArrayToHash;\n    }\n  });\n  Object.defineProperty(_exports, \"errorsHashToArray\", {\n    enumerable: true,\n    get: function () {\n      return _error.errorsHashToArray;\n    }\n  });\n});","define(\"ember-data/adapters/json-api\", [\"exports\", \"@ember-data/adapter/json-api\"], function (_exports, _jsonApi) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"default\", {\n    enumerable: true,\n    get: function () {\n      return _jsonApi.default;\n    }\n  });\n});","define(\"ember-data/adapters/rest\", [\"exports\", \"@ember-data/adapter/rest\"], function (_exports, _rest) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"default\", {\n    enumerable: true,\n    get: function () {\n      return _rest.default;\n    }\n  });\n});","define(\"ember-data/attr\", [\"exports\", \"@ember-data/model\"], function (_exports, _model) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"default\", {\n    enumerable: true,\n    get: function () {\n      return _model.attr;\n    }\n  });\n});","define(\"ember-data/index\", [\"exports\", \"ember-inflector\", \"@ember-data/adapter\", \"@ember-data/adapter/error\", \"@ember-data/adapter/json-api\", \"@ember-data/adapter/rest\", \"@ember-data/debug\", \"@ember-data/model\", \"@ember-data/serializer\", \"@ember-data/serializer/-private\", \"@ember-data/serializer/json\", \"@ember-data/serializer/json-api\", \"@ember-data/serializer/rest\", \"@ember-data/serializer/transform\", \"@ember-data/store\", \"ember-data/-private\", \"ember-data/initialize-store-service\", \"ember-data/setup-container\"], function (_exports, _emberInflector, _adapter, _error, _jsonApi, _rest, _debug, _model, _serializer, _private, _json, _jsonApi2, _rest2, _transform, _store, _private2, _initializeStoreService, _setupContainer) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  if (Ember.VERSION.match(/^1\\.([0-9]|1[0-2])\\./)) {\n    throw new Ember.Error('Ember Data requires at least Ember 1.13.0, but you have ' + Ember.VERSION + '. Please upgrade your version of Ember, then upgrade Ember Data.');\n  }\n\n  _private2.DS.Store = _store.default;\n  _private2.DS.PromiseArray = _private2.PromiseArray;\n  _private2.DS.PromiseObject = _private2.PromiseObject;\n  _private2.DS.PromiseManyArray = _private2.PromiseManyArray;\n  _private2.DS.Model = _model.default;\n  _private2.DS.RootState = _private2.RootState;\n  _private2.DS.attr = _model.attr;\n  _private2.DS.Errors = _private2.Errors;\n  _private2.DS.InternalModel = _private2.InternalModel;\n  _private2.DS.Snapshot = _private2.Snapshot;\n  _private2.DS.Adapter = _adapter.default;\n  _private2.DS.AdapterError = _error.default;\n  _private2.DS.InvalidError = _error.InvalidError;\n  _private2.DS.TimeoutError = _error.TimeoutError;\n  _private2.DS.AbortError = _error.AbortError;\n  _private2.DS.UnauthorizedError = _error.UnauthorizedError;\n  _private2.DS.ForbiddenError = _error.ForbiddenError;\n  _private2.DS.NotFoundError = _error.NotFoundError;\n  _private2.DS.ConflictError = _error.ConflictError;\n  _private2.DS.ServerError = _error.ServerError;\n  _private2.DS.errorsHashToArray = _error.errorsHashToArray;\n  _private2.DS.errorsArrayToHash = _error.errorsArrayToHash;\n  _private2.DS.Serializer = _serializer.default;\n  _private2.DS.DebugAdapter = _debug.default;\n  _private2.DS.RecordArray = _private2.RecordArray;\n  _private2.DS.AdapterPopulatedRecordArray = _private2.AdapterPopulatedRecordArray;\n  _private2.DS.ManyArray = _private2.ManyArray;\n  _private2.DS.RecordArrayManager = _private2.RecordArrayManager;\n  _private2.DS.RESTAdapter = _rest.default;\n  _private2.DS.BuildURLMixin = _adapter.BuildURLMixin;\n  _private2.DS.RESTSerializer = _rest2.default;\n  _private2.DS.JSONSerializer = _json.default;\n  _private2.DS.JSONAPIAdapter = _jsonApi.default;\n  _private2.DS.JSONAPISerializer = _jsonApi2.default;\n  _private2.DS.Transform = _transform.default;\n  _private2.DS.DateTransform = _private.DateTransform;\n  _private2.DS.StringTransform = _private.StringTransform;\n  _private2.DS.NumberTransform = _private.NumberTransform;\n  _private2.DS.BooleanTransform = _private.BooleanTransform;\n  _private2.DS.EmbeddedRecordsMixin = _rest2.EmbeddedRecordsMixin;\n  _private2.DS.belongsTo = _model.belongsTo;\n  _private2.DS.hasMany = _model.hasMany;\n  _private2.DS.Relationship = _private2.Relationship;\n  _private2.DS._setupContainer = _setupContainer.default;\n  _private2.DS._initializeStoreService = _initializeStoreService.default;\n  Object.defineProperty(_private2.DS, 'normalizeModelName', {\n    enumerable: true,\n    writable: false,\n    configurable: false,\n    value: _store.normalizeModelName\n  });\n  var _default = _private2.DS;\n  _exports.default = _default;\n});","define(\"ember-data/initialize-store-service\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = initializeStoreService;\n\n  /*\n    Configures a registry for use with an Ember-Data\n    store.\n  \n    @method initializeStoreService\n    @param {Ember.ApplicationInstance | Ember.EngineInstance} instance\n  */\n  function initializeStoreService(instance) {\n    // instance.lookup supports Ember 2.1 and higher\n    // instance.container supports Ember 1.11 - 2.0\n    var container = instance.lookup ? instance : instance.container; // Eagerly generate the store so defaultStore is populated.\n\n    container.lookup('service:store');\n  }\n});","define(\"ember-data/model\", [\"exports\", \"@ember-data/model\"], function (_exports, _model) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"default\", {\n    enumerable: true,\n    get: function () {\n      return _model.default;\n    }\n  });\n});","define(\"ember-data/relationships\", [\"exports\", \"@ember-data/model\"], function (_exports, _model) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"belongsTo\", {\n    enumerable: true,\n    get: function () {\n      return _model.belongsTo;\n    }\n  });\n  Object.defineProperty(_exports, \"hasMany\", {\n    enumerable: true,\n    get: function () {\n      return _model.hasMany;\n    }\n  });\n});","define(\"ember-data/serializer\", [\"exports\", \"@ember-data/serializer\"], function (_exports, _serializer) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"default\", {\n    enumerable: true,\n    get: function () {\n      return _serializer.default;\n    }\n  });\n});","define(\"ember-data/serializers/embedded-records-mixin\", [\"exports\", \"@ember-data/serializer/rest\"], function (_exports, _rest) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"default\", {\n    enumerable: true,\n    get: function () {\n      return _rest.EmbeddedRecordsMixin;\n    }\n  });\n});","define(\"ember-data/serializers/json-api\", [\"exports\", \"@ember-data/serializer/json-api\"], function (_exports, _jsonApi) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"default\", {\n    enumerable: true,\n    get: function () {\n      return _jsonApi.default;\n    }\n  });\n});","define(\"ember-data/serializers/json\", [\"exports\", \"@ember-data/serializer/json\"], function (_exports, _json) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"default\", {\n    enumerable: true,\n    get: function () {\n      return _json.default;\n    }\n  });\n});","define(\"ember-data/serializers/rest\", [\"exports\", \"@ember-data/serializer/rest\"], function (_exports, _rest) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"default\", {\n    enumerable: true,\n    get: function () {\n      return _rest.default;\n    }\n  });\n});","define(\"ember-data/setup-container\", [\"exports\", \"@ember-data/store\"], function (_exports, _store) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = setupContainer;\n\n  function initializeStore(application) {\n    // we can just use registerOptionsForType when we no longer\n    // support (deprecated) versions of @ember/test-helpers\n    // We're issuing a \"private-api\" deprecation for users of the\n    // deprecated @ember/test-helpers versions, but will keep\n    // this for as long as until 4.0 as needed\n    if (true\n    /* DEBUG */\n    && !application.registerOptionsForType) {\n      (true && !(false) && Ember.deprecate(`Deprecated test syntax usage detected!\\n\\n\\t` + `This test relies on a deprecated test setup that is no longer supported by EmberData.` + ` To resolve this you will need to be on a recent version of @ember/test-helpers` + ` AND your tests must use \\`setApplication()\\` instead of \\`setResolver()\\` and` + ` \\`module()\\` with \\`setup*Test()\\`instead of \\`moduleFor*()\\`.`, false, {\n        id: 'ember-data:legacy-test-helper-support',\n        until: '3.17'\n      }));\n      application.optionsForType('serializer', {\n        singleton: false\n      });\n      application.optionsForType('adapter', {\n        singleton: false\n      });\n\n      if (!application.has('service:store')) {\n        application.register('service:store', _store.default);\n      }\n\n      return;\n    }\n\n    application.registerOptionsForType('serializer', {\n      singleton: false\n    });\n    application.registerOptionsForType('adapter', {\n      singleton: false\n    });\n\n    if (!application.hasRegistration('service:store')) {\n      application.register('service:store', _store.default);\n    }\n  }\n\n  function initializeStoreInjections(application) {\n    var inject = application.inject || application.injection;\n    inject.call(application, 'controller', 'store', 'service:store');\n    inject.call(application, 'route', 'store', 'service:store');\n  }\n\n  function setupContainer(application) {\n    initializeStoreInjections(application);\n    initializeStore(application);\n  }\n});","define(\"ember-data/store\", [\"exports\", \"@ember-data/store\"], function (_exports, _store) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"default\", {\n    enumerable: true,\n    get: function () {\n      return _store.default;\n    }\n  });\n});","define(\"ember-data/transform\", [\"exports\", \"@ember-data/serializer/transform\"], function (_exports, _transform) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"default\", {\n    enumerable: true,\n    get: function () {\n      return _transform.default;\n    }\n  });\n});","define(\"ember-data/version\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n  var _default = \"3.18.0\";\n  _exports.default = _default;\n});","define('ember-inflector/index', ['exports', 'ember-inflector/lib/system', 'ember-inflector/lib/ext/string'], function (exports, _system) {\n  'use strict';\n\n  Object.defineProperty(exports, \"__esModule\", {\n    value: true\n  });\n  exports.defaultRules = exports.singularize = exports.pluralize = undefined;\n\n\n  _system.Inflector.defaultRules = _system.defaultRules;\n\n  Object.defineProperty(Ember, 'Inflector', {\n    get() {\n      Ember.deprecate(`Ember.Inflector is deprecated. Please explicitly: import Inflector from 'ember-inflector';`, false, {\n        id: 'ember-inflector.globals',\n        until: '3.0.0'\n      });\n\n      return _system.Inflector;\n    }\n  }, { configurable: true });\n\n  Object.defineProperty(Ember.String, 'singularize', {\n    get() {\n      Ember.deprecate(`Ember.String.singularize() is deprecated. Please explicitly: import { singularize } from 'ember-inflector';`, false, {\n        id: 'ember-inflector.globals',\n        until: '3.0.0'\n      });\n\n      return _system.singularize;\n    }\n  }, { configurable: true });\n\n  Object.defineProperty(Ember.String, 'pluralize', {\n    get() {\n      Ember.deprecate(`Ember.String.pluralize() is deprecated. Please explicitly: import { pluralize } from 'ember-inflector';`, false, {\n        id: 'ember-inflector.globals',\n        until: '3.0.0'\n      });\n\n      return _system.pluralize;\n    }\n  }, { configurable: true });\n\n  exports.default = _system.Inflector;\n  exports.pluralize = _system.pluralize;\n  exports.singularize = _system.singularize;\n  exports.defaultRules = _system.defaultRules;\n});","define('ember-inflector/lib/ext/string', ['ember-inflector/lib/system/string'], function (_string) {\n  'use strict';\n\n  if (Ember.ENV.EXTEND_PROTOTYPES === true || Ember.ENV.EXTEND_PROTOTYPES.String) {\n    /**\n      See {{#crossLink \"Ember.String/pluralize\"}}{{/crossLink}}\n       @method pluralize\n      @for String\n    */\n    Object.defineProperty(String.prototype, 'pluralize', {\n      get() {\n        Ember.deprecate(`String.prototype.pluralize() is deprecated. Please explicitly: import { pluralize } from 'ember-inflector';`, false, {\n          id: 'ember-inflector.globals',\n          until: '3.0.0'\n        });\n\n        return function () {\n          return (0, _string.pluralize)(this);\n        };\n      }\n    }, { configurable: true });\n\n    /**\n      See {{#crossLink \"Ember.String/singularize\"}}{{/crossLink}}\n       @method singularize\n      @for String\n    */\n    Object.defineProperty(String.prototype, 'singularize', {\n      get() {\n        Ember.deprecate(`String.prototype.singularize() is deprecated. Please explicitly: import { singularize } from 'ember-inflector';`, false, {\n          id: 'ember-inflector.globals',\n          until: '3.0.0'\n        });\n\n        return function () {\n          return (0, _string.singularize)(this);\n        };\n      }\n    }, { configurable: true });\n  }\n});","define('ember-inflector/lib/helpers/pluralize', ['exports', 'ember-inflector', 'ember-inflector/lib/utils/make-helper'], function (exports, _emberInflector, _makeHelper) {\n  'use strict';\n\n  Object.defineProperty(exports, \"__esModule\", {\n    value: true\n  });\n  exports.default = (0, _makeHelper.default)(function (params, hash) {\n    let fullParams = new Array(...params);\n\n    if (fullParams.length === 2) {\n      fullParams.push({ withoutCount: hash[\"without-count\"] });\n    }\n\n    return (0, _emberInflector.pluralize)(...fullParams);\n  });\n});","define('ember-inflector/lib/helpers/singularize', ['exports', 'ember-inflector', 'ember-inflector/lib/utils/make-helper'], function (exports, _emberInflector, _makeHelper) {\n  'use strict';\n\n  Object.defineProperty(exports, \"__esModule\", {\n    value: true\n  });\n  exports.default = (0, _makeHelper.default)(function (params) {\n    return (0, _emberInflector.singularize)(params[0]);\n  });\n});","define(\"ember-inflector/lib/system\", [\"exports\", \"ember-inflector/lib/system/inflector\", \"ember-inflector/lib/system/string\", \"ember-inflector/lib/system/inflections\"], function (exports, _inflector, _string, _inflections) {\n  \"use strict\";\n\n  Object.defineProperty(exports, \"__esModule\", {\n    value: true\n  });\n  exports.defaultRules = exports.pluralize = exports.singularize = exports.Inflector = undefined;\n\n\n  _inflector.default.inflector = new _inflector.default(_inflections.default);\n\n  exports.Inflector = _inflector.default;\n  exports.singularize = _string.singularize;\n  exports.pluralize = _string.pluralize;\n  exports.defaultRules = _inflections.default;\n});","define('ember-inflector/lib/system/inflections', ['exports'], function (exports) {\n  'use strict';\n\n  Object.defineProperty(exports, \"__esModule\", {\n    value: true\n  });\n  exports.default = {\n    plurals: [[/$/, 's'], [/s$/i, 's'], [/^(ax|test)is$/i, '$1es'], [/(octop|vir)us$/i, '$1i'], [/(octop|vir)i$/i, '$1i'], [/(alias|status|bonus)$/i, '$1es'], [/(bu)s$/i, '$1ses'], [/(buffal|tomat)o$/i, '$1oes'], [/([ti])um$/i, '$1a'], [/([ti])a$/i, '$1a'], [/sis$/i, 'ses'], [/(?:([^f])fe|([lr])f)$/i, '$1$2ves'], [/(hive)$/i, '$1s'], [/([^aeiouy]|qu)y$/i, '$1ies'], [/(x|ch|ss|sh)$/i, '$1es'], [/(matr|vert|ind)(?:ix|ex)$/i, '$1ices'], [/^(m|l)ouse$/i, '$1ice'], [/^(m|l)ice$/i, '$1ice'], [/^(ox)$/i, '$1en'], [/^(oxen)$/i, '$1'], [/(quiz)$/i, '$1zes']],\n\n    singular: [[/s$/i, ''], [/(ss)$/i, '$1'], [/(n)ews$/i, '$1ews'], [/([ti])a$/i, '$1um'], [/((a)naly|(b)a|(d)iagno|(p)arenthe|(p)rogno|(s)ynop|(t)he)(sis|ses)$/i, '$1sis'], [/(^analy)(sis|ses)$/i, '$1sis'], [/([^f])ves$/i, '$1fe'], [/(hive)s$/i, '$1'], [/(tive)s$/i, '$1'], [/([lr])ves$/i, '$1f'], [/([^aeiouy]|qu)ies$/i, '$1y'], [/(s)eries$/i, '$1eries'], [/(m)ovies$/i, '$1ovie'], [/(x|ch|ss|sh)es$/i, '$1'], [/^(m|l)ice$/i, '$1ouse'], [/(bus)(es)?$/i, '$1'], [/(o)es$/i, '$1'], [/(shoe)s$/i, '$1'], [/(cris|test)(is|es)$/i, '$1is'], [/^(a)x[ie]s$/i, '$1xis'], [/(octop|vir)(us|i)$/i, '$1us'], [/(alias|status|bonus)(es)?$/i, '$1'], [/^(ox)en/i, '$1'], [/(vert|ind)ices$/i, '$1ex'], [/(matr)ices$/i, '$1ix'], [/(quiz)zes$/i, '$1'], [/(database)s$/i, '$1']],\n\n    irregularPairs: [['person', 'people'], ['man', 'men'], ['child', 'children'], ['sex', 'sexes'], ['move', 'moves'], ['cow', 'kine'], ['zombie', 'zombies']],\n\n    uncountable: ['equipment', 'information', 'rice', 'money', 'species', 'series', 'fish', 'sheep', 'jeans', 'police']\n  };\n});","define('ember-inflector/lib/system/inflector', ['exports'], function (exports) {\n  'use strict';\n\n  Object.defineProperty(exports, \"__esModule\", {\n    value: true\n  });\n\n\n  const BLANK_REGEX = /^\\s*$/;\n  const LAST_WORD_DASHED_REGEX = /([\\w/-]+[_/\\s-])([a-z\\d]+$)/;\n  const LAST_WORD_CAMELIZED_REGEX = /([\\w/\\s-]+)([A-Z][a-z\\d]*$)/;\n  const CAMELIZED_REGEX = /[A-Z][a-z\\d]*$/;\n\n  function loadUncountable(rules, uncountable) {\n    for (let i = 0, length = uncountable.length; i < length; i++) {\n      rules.uncountable[uncountable[i].toLowerCase()] = true;\n    }\n  }\n\n  function loadIrregular(rules, irregularPairs) {\n    let pair;\n\n    for (let i = 0, length = irregularPairs.length; i < length; i++) {\n      pair = irregularPairs[i];\n\n      //pluralizing\n      rules.irregular[pair[0].toLowerCase()] = pair[1];\n      rules.irregular[pair[1].toLowerCase()] = pair[1];\n\n      //singularizing\n      rules.irregularInverse[pair[1].toLowerCase()] = pair[0];\n      rules.irregularInverse[pair[0].toLowerCase()] = pair[0];\n    }\n  }\n\n  /**\n    Inflector.Ember provides a mechanism for supplying inflection rules for your\n    application. Ember includes a default set of inflection rules, and provides an\n    API for providing additional rules.\n  \n    Examples:\n  \n    Creating an inflector with no rules.\n  \n    ```js\n    var inflector = new Ember.Inflector();\n    ```\n  \n    Creating an inflector with the default ember ruleset.\n  \n    ```js\n    var inflector = new Ember.Inflector(Ember.Inflector.defaultRules);\n  \n    inflector.pluralize('cow'); //=> 'kine'\n    inflector.singularize('kine'); //=> 'cow'\n    ```\n  \n    Creating an inflector and adding rules later.\n  \n    ```javascript\n    var inflector = Ember.Inflector.inflector;\n  \n    inflector.pluralize('advice'); // => 'advices'\n    inflector.uncountable('advice');\n    inflector.pluralize('advice'); // => 'advice'\n  \n    inflector.pluralize('formula'); // => 'formulas'\n    inflector.irregular('formula', 'formulae');\n    inflector.pluralize('formula'); // => 'formulae'\n  \n    // you would not need to add these as they are the default rules\n    inflector.plural(/$/, 's');\n    inflector.singular(/s$/i, '');\n    ```\n  \n    Creating an inflector with a nondefault ruleset.\n  \n    ```javascript\n    var rules = {\n      plurals:  [\n        [ /$/, 's' ]\n      ],\n      singular: [\n        [ /\\s$/, '' ]\n      ],\n      irregularPairs: [\n        [ 'cow', 'kine' ]\n      ],\n      uncountable: [ 'fish' ]\n    };\n  \n    var inflector = new Ember.Inflector(rules);\n    ```\n  \n    @class Inflector\n    @namespace Ember\n  */\n  function Inflector(ruleSet) {\n    ruleSet = ruleSet || {};\n    ruleSet.uncountable = ruleSet.uncountable || makeDictionary();\n    ruleSet.irregularPairs = ruleSet.irregularPairs || makeDictionary();\n\n    const rules = this.rules = {\n      plurals: ruleSet.plurals || [],\n      singular: ruleSet.singular || [],\n      irregular: makeDictionary(),\n      irregularInverse: makeDictionary(),\n      uncountable: makeDictionary()\n    };\n\n    loadUncountable(rules, ruleSet.uncountable);\n    loadIrregular(rules, ruleSet.irregularPairs);\n\n    this.enableCache();\n  }\n\n  if (!Object.create && !Object.create(null).hasOwnProperty) {\n    throw new Error(\"This browser does not support Object.create(null), please polyfil with es5-sham: http://git.io/yBU2rg\");\n  }\n\n  function makeDictionary() {\n    var cache = Object.create(null);\n    cache['_dict'] = null;\n    delete cache['_dict'];\n    return cache;\n  }\n\n  Inflector.prototype = {\n    /**\n      @public\n       As inflections can be costly, and commonly the same subset of words are repeatedly\n      inflected an optional cache is provided.\n       @method enableCache\n    */\n    enableCache() {\n      this.purgeCache();\n\n      this.singularize = function (word) {\n        this._cacheUsed = true;\n        return this._sCache[word] || (this._sCache[word] = this._singularize(word));\n      };\n\n      this.pluralize = function (numberOrWord, word, options = {}) {\n        this._cacheUsed = true;\n        var cacheKey = [numberOrWord, word, options.withoutCount];\n        return this._pCache[cacheKey] || (this._pCache[cacheKey] = this._pluralize(numberOrWord, word, options));\n      };\n    },\n\n    /**\n      @public\n       @method purgedCache\n    */\n    purgeCache() {\n      this._cacheUsed = false;\n      this._sCache = makeDictionary();\n      this._pCache = makeDictionary();\n    },\n\n    /**\n      @public\n      disable caching\n       @method disableCache;\n    */\n    disableCache() {\n      this._sCache = null;\n      this._pCache = null;\n      this.singularize = function (word) {\n        return this._singularize(word);\n      };\n\n      this.pluralize = function () {\n        return this._pluralize(...arguments);\n      };\n    },\n\n    /**\n      @method plural\n      @param {RegExp} regex\n      @param {String} string\n    */\n    plural(regex, string) {\n      if (this._cacheUsed) {\n        this.purgeCache();\n      }\n      this.rules.plurals.push([regex, string.toLowerCase()]);\n    },\n\n    /**\n      @method singular\n      @param {RegExp} regex\n      @param {String} string\n    */\n    singular(regex, string) {\n      if (this._cacheUsed) {\n        this.purgeCache();\n      }\n      this.rules.singular.push([regex, string.toLowerCase()]);\n    },\n\n    /**\n      @method uncountable\n      @param {String} regex\n    */\n    uncountable(string) {\n      if (this._cacheUsed) {\n        this.purgeCache();\n      }\n      loadUncountable(this.rules, [string.toLowerCase()]);\n    },\n\n    /**\n      @method irregular\n      @param {String} singular\n      @param {String} plural\n    */\n    irregular(singular, plural) {\n      if (this._cacheUsed) {\n        this.purgeCache();\n      }\n      loadIrregular(this.rules, [[singular, plural]]);\n    },\n\n    /**\n      @method pluralize\n      @param {String} word\n    */\n    pluralize() {\n      return this._pluralize(...arguments);\n    },\n\n    _pluralize(wordOrCount, word, options = {}) {\n      if (word === undefined) {\n        return this.inflect(wordOrCount, this.rules.plurals, this.rules.irregular);\n      }\n\n      if (parseFloat(wordOrCount) !== 1) {\n        word = this.inflect(word, this.rules.plurals, this.rules.irregular);\n      }\n\n      return options.withoutCount ? word : `${wordOrCount} ${word}`;\n    },\n    /**\n      @method singularize\n      @param {String} word\n    */\n    singularize(word) {\n      return this._singularize(word);\n    },\n\n    _singularize(word) {\n      return this.inflect(word, this.rules.singular, this.rules.irregularInverse);\n    },\n\n    /**\n      @protected\n       @method inflect\n      @param {String} word\n      @param {Object} typeRules\n      @param {Object} irregular\n    */\n    inflect(word, typeRules, irregular) {\n      let inflection, substitution, result, lowercase, wordSplit, lastWord, isBlank, isCamelized, rule, isUncountable;\n\n      isBlank = !word || BLANK_REGEX.test(word);\n      isCamelized = CAMELIZED_REGEX.test(word);\n\n      if (isBlank) {\n        return word;\n      }\n\n      lowercase = word.toLowerCase();\n      wordSplit = LAST_WORD_DASHED_REGEX.exec(word) || LAST_WORD_CAMELIZED_REGEX.exec(word);\n\n      if (wordSplit) {\n        lastWord = wordSplit[2].toLowerCase();\n      }\n\n      isUncountable = this.rules.uncountable[lowercase] || this.rules.uncountable[lastWord];\n\n      if (isUncountable) {\n        return word;\n      }\n\n      for (rule in irregular) {\n        if (lowercase.match(rule + \"$\")) {\n          substitution = irregular[rule];\n\n          if (isCamelized && irregular[lastWord]) {\n            substitution = Ember.String.capitalize(substitution);\n            rule = Ember.String.capitalize(rule);\n          }\n\n          return word.replace(new RegExp(rule, 'i'), substitution);\n        }\n      }\n\n      for (var i = typeRules.length, min = 0; i > min; i--) {\n        inflection = typeRules[i - 1];\n        rule = inflection[0];\n\n        if (rule.test(word)) {\n          break;\n        }\n      }\n\n      inflection = inflection || [];\n\n      rule = inflection[0];\n      substitution = inflection[1];\n\n      result = word.replace(rule, substitution);\n\n      return result;\n    }\n  };\n\n  exports.default = Inflector;\n});","define('ember-inflector/lib/system/string', ['exports', 'ember-inflector/lib/system/inflector'], function (exports, _inflector) {\n  'use strict';\n\n  Object.defineProperty(exports, \"__esModule\", {\n    value: true\n  });\n  exports.singularize = exports.pluralize = undefined;\n\n\n  function pluralize() {\n    return _inflector.default.inflector.pluralize(...arguments);\n  }\n\n  function singularize(word) {\n    return _inflector.default.inflector.singularize(word);\n  }\n\n  exports.pluralize = pluralize;\n  exports.singularize = singularize;\n});","define('ember-inflector/lib/utils/make-helper', ['exports'], function (exports) {\n  'use strict';\n\n  Object.defineProperty(exports, \"__esModule\", {\n    value: true\n  });\n  exports.default = makeHelper;\n  function makeHelper(helperFunction) {\n    if (Ember.Helper) {\n      return Ember.Helper.helper(helperFunction);\n    }\n    if (Ember.HTMLBars) {\n      return Ember.HTMLBars.makeBoundHelper(helperFunction);\n    }\n    return Ember.Handlebars.makeBoundHelper(helperFunction);\n  }\n});","define(\"ember-load-initializers/index\", [\"exports\", \"require\"], function (_exports, _require) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = loadInitializers;\n\n  function resolveInitializer(moduleName) {\n    var module = (0, _require.default)(moduleName, null, null, true);\n\n    if (!module) {\n      throw new Error(moduleName + ' must export an initializer.');\n    }\n\n    var initializer = module['default'];\n\n    if (!initializer) {\n      throw new Error(moduleName + ' must have a default export');\n    }\n\n    if (!initializer.name) {\n      initializer.name = moduleName.slice(moduleName.lastIndexOf('/') + 1);\n    }\n\n    return initializer;\n  }\n\n  function registerInitializers(app, moduleNames) {\n    for (var i = 0; i < moduleNames.length; i++) {\n      app.initializer(resolveInitializer(moduleNames[i]));\n    }\n  }\n\n  function registerInstanceInitializers(app, moduleNames) {\n    for (var i = 0; i < moduleNames.length; i++) {\n      app.instanceInitializer(resolveInitializer(moduleNames[i]));\n    }\n  }\n\n  function _endsWith(str, suffix) {\n    return str.indexOf(suffix, str.length - suffix.length) !== -1;\n  }\n  /**\n   * Configure your application as it boots\n   */\n\n\n  function loadInitializers(app, prefix) {\n    var initializerPrefix = prefix + '/initializers/';\n    var instanceInitializerPrefix = prefix + '/instance-initializers/';\n    var initializers = [];\n    var instanceInitializers = []; // this is 2 pass because generally the first pass is the problem\n    // and is reduced, and resolveInitializer has potential to deopt\n\n    var moduleNames = Object.keys(requirejs._eak_seen);\n\n    for (var i = 0; i < moduleNames.length; i++) {\n      var moduleName = moduleNames[i];\n\n      if (moduleName.lastIndexOf(initializerPrefix, 0) === 0) {\n        if (!_endsWith(moduleName, '-test')) {\n          initializers.push(moduleName);\n        }\n      } else if (moduleName.lastIndexOf(instanceInitializerPrefix, 0) === 0) {\n        if (!_endsWith(moduleName, '-test')) {\n          instanceInitializers.push(moduleName);\n        }\n      }\n    }\n\n    registerInitializers(app, initializers);\n    registerInstanceInitializers(app, instanceInitializers);\n  }\n});","/*\n * This is a stub file, it must be on disk b/c babel-plugin-debug-macros\n * does not strip the module require when the transpiled variable usage is\n * stripped.\n */\ndefine(\"ember-resolver/features\", [], function () {\n  \"use strict\";\n});","define(\"ember-resolver/index\", [\"exports\", \"ember-resolver/resolvers/classic\"], function (_exports, _classic) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"default\", {\n    enumerable: true,\n    get: function () {\n      return _classic.default;\n    }\n  });\n});","define(\"ember-resolver/resolver\", [\"exports\", \"ember-resolver/resolvers/classic\"], function (_exports, _classic) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"default\", {\n    enumerable: true,\n    get: function () {\n      return _classic.default;\n    }\n  });\n});","define(\"ember-resolver/resolvers/classic/container-debug-adapter\", [\"exports\", \"ember-resolver/resolvers/classic/index\"], function (_exports, _index) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  function getPod(type, key, prefix) {\n    let match = key.match(new RegExp('^/?' + prefix + '/(.+)/' + type + '$'));\n\n    if (match !== null) {\n      return match[1];\n    }\n  }\n  /*\n   * This module defines a subclass of Ember.ContainerDebugAdapter that adds\n   * support for resolving from modules.\n   *\n   */\n\n\n  var _default = Ember.ContainerDebugAdapter.extend({\n    _moduleRegistry: null,\n\n    init() {\n      this._super(...arguments);\n\n      if (!this._moduleRegistry) {\n        this._moduleRegistry = new _index.ModuleRegistry();\n      }\n    },\n\n    /**\n        The container of the application being debugged.\n        This property will be injected\n        on creation.\n         @property container\n        @default null\n        */\n\n    /**\n        The resolver instance of the application\n        being debugged. This property will be injected\n        on creation.\n         @property resolver\n        @default null\n        */\n\n    /**\n        Returns true if it is possible to catalog a list of available\n        classes in the resolver for a given type.\n         @method canCatalogEntriesByType\n        @param {string} type The type. e.g. \"model\", \"controller\", \"route\"\n        @return {boolean} whether a list is available for this type.\n        */\n    canCatalogEntriesByType(type) {\n      if (type === 'model') {\n        return true;\n      }\n\n      return this._super(...arguments);\n    },\n\n    /**\n        Returns the available classes a given type.\n         @method catalogEntriesByType\n        @param {string} type The type. e.g. \"model\", \"controller\", \"route\"\n        @return {Array} An array of classes.\n        */\n    catalogEntriesByType(type) {\n      let moduleNames = this._moduleRegistry.moduleNames();\n\n      let types = Ember.A();\n      let prefix = this.namespace.modulePrefix;\n\n      for (let i = 0, l = moduleNames.length; i < l; i++) {\n        let key = moduleNames[i];\n\n        if (key.indexOf(type) !== -1) {\n          // Check if it's a pod module\n          let name = getPod(type, key, this.namespace.podModulePrefix || prefix);\n\n          if (!name) {\n            // Not pod\n            name = key.split(type + 's/').pop(); // Support for different prefix (such as ember-cli addons).\n            // Uncomment the code below when\n            // https://github.com/ember-cli/ember-resolver/pull/80 is merged.\n            //let match = key.match('^/?(.+)/' + type);\n            //if (match && match[1] !== prefix) {\n            // Different prefix such as an addon\n            //name = match[1] + '@' + name;\n            //}\n          }\n\n          types.addObject(name);\n        }\n      }\n\n      return types;\n    }\n\n  });\n\n  _exports.default = _default;\n});","define(\"ember-resolver/resolvers/classic/index\", [\"exports\", \"ember-resolver/utils/class-factory\"], function (_exports, _classFactory) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = _exports.ModuleRegistry = void 0;\n\n  if (typeof requirejs.entries === 'undefined') {\n    requirejs.entries = requirejs._eak_seen;\n  }\n\n  class ModuleRegistry {\n    constructor(entries) {\n      this._entries = entries || requirejs.entries;\n    }\n\n    moduleNames() {\n      return Object.keys(this._entries);\n    }\n\n    has(moduleName) {\n      return moduleName in this._entries;\n    }\n\n    get(moduleName) {\n      return require(moduleName);\n    }\n\n  }\n  /**\n   * This module defines a subclass of Ember.DefaultResolver that adds two\n   * important features:\n   *\n   *  1) The resolver makes the container aware of es6 modules via the AMD\n   *     output. The loader's _moduleEntries is consulted so that classes can be\n   *     resolved directly via the module loader, without needing a manual\n   *     `import`.\n   *  2) is able to provide injections to classes that implement `extend`\n   *     (as is typical with Ember).\n   */\n\n\n  _exports.ModuleRegistry = ModuleRegistry;\n\n  function parseName(fullName) {\n    if (fullName.parsedName === true) {\n      return fullName;\n    }\n\n    let prefix, type, name;\n    let fullNameParts = fullName.split('@');\n\n    if (fullNameParts.length === 3) {\n      if (fullNameParts[0].length === 0) {\n        // leading scoped namespace: `@scope/pkg@type:name`\n        prefix = `@${fullNameParts[1]}`;\n        let prefixParts = fullNameParts[2].split(':');\n        type = prefixParts[0];\n        name = prefixParts[1];\n      } else {\n        // interweaved scoped namespace: `type:@scope/pkg@name`\n        prefix = `@${fullNameParts[1]}`;\n        type = fullNameParts[0].slice(0, -1);\n        name = fullNameParts[2];\n      }\n\n      if (type === 'template:components') {\n        name = `components/${name}`;\n        type = 'template';\n      }\n    } else if (fullNameParts.length === 2) {\n      let prefixParts = fullNameParts[0].split(':');\n\n      if (prefixParts.length === 2) {\n        if (prefixParts[1].length === 0) {\n          type = prefixParts[0];\n          name = `@${fullNameParts[1]}`;\n        } else {\n          prefix = prefixParts[1];\n          type = prefixParts[0];\n          name = fullNameParts[1];\n        }\n      } else {\n        let nameParts = fullNameParts[1].split(':');\n        prefix = fullNameParts[0];\n        type = nameParts[0];\n        name = nameParts[1];\n      }\n\n      if (type === 'template' && prefix.lastIndexOf('components/', 0) === 0) {\n        name = `components/${name}`;\n        prefix = prefix.slice(11);\n      }\n    } else {\n      fullNameParts = fullName.split(':');\n      type = fullNameParts[0];\n      name = fullNameParts[1];\n    }\n\n    let fullNameWithoutType = name;\n    let namespace = Ember.get(this, 'namespace');\n    let root = namespace;\n    return {\n      parsedName: true,\n      fullName: fullName,\n      prefix: prefix || this.prefix({\n        type: type\n      }),\n      type: type,\n      fullNameWithoutType: fullNameWithoutType,\n      name: name,\n      root: root,\n      resolveMethodName: \"resolve\" + Ember.String.classify(type)\n    };\n  }\n\n  function resolveOther(parsedName) {\n    (true && !(this.namespace.modulePrefix) && Ember.assert('`modulePrefix` must be defined', this.namespace.modulePrefix));\n    let normalizedModuleName = this.findModuleName(parsedName);\n\n    if (normalizedModuleName) {\n      let defaultExport = this._extractDefaultExport(normalizedModuleName, parsedName);\n\n      if (defaultExport === undefined) {\n        throw new Error(` Expected to find: '${parsedName.fullName}' within '${normalizedModuleName}' but got 'undefined'. Did you forget to 'export default' within '${normalizedModuleName}'?`);\n      }\n\n      if (this.shouldWrapInClassFactory(defaultExport, parsedName)) {\n        defaultExport = (0, _classFactory.default)(defaultExport);\n      }\n\n      return defaultExport;\n    }\n  }\n\n  const Resolver = Ember.Object.extend({\n    resolveOther,\n    parseName,\n    pluralizedTypes: null,\n    moduleRegistry: null,\n\n    makeToString(factory, fullName) {\n      return '' + this.namespace.modulePrefix + '@' + fullName + ':';\n    },\n\n    shouldWrapInClassFactory()\n    /* module, parsedName */\n    {\n      return false;\n    },\n\n    init() {\n      this._super();\n\n      this.moduleBasedResolver = true;\n\n      if (!this._moduleRegistry) {\n        this._moduleRegistry = new ModuleRegistry();\n      }\n\n      this._normalizeCache = Object.create(null);\n      this.pluralizedTypes = this.pluralizedTypes || Object.create(null);\n\n      if (!this.pluralizedTypes.config) {\n        this.pluralizedTypes.config = 'config';\n      }\n\n      this._deprecatedPodModulePrefix = false;\n    },\n\n    normalize(fullName) {\n      return this._normalizeCache[fullName] || (this._normalizeCache[fullName] = this._normalize(fullName));\n    },\n\n    resolve(fullName) {\n      let parsedName = this.parseName(fullName);\n      let resolveMethodName = parsedName.resolveMethodName;\n      let resolved;\n\n      if (typeof this[resolveMethodName] === 'function') {\n        resolved = this[resolveMethodName](parsedName);\n      }\n\n      if (resolved == null) {\n        resolved = this.resolveOther(parsedName);\n      }\n\n      return resolved;\n    },\n\n    _normalize(fullName) {\n      // A) Convert underscores to dashes\n      // B) Convert camelCase to dash-case, except for components (their\n      //    templates) and helpers where we want to avoid shadowing camelCase\n      //    expressions\n      // C) replace `.` with `/` in order to make nested controllers work in the following cases\n      //      1. `needs: ['posts/post']`\n      //      2. `{{render \"posts/post\"}}`\n      //      3. `this.render('posts/post')` from Route\n      let split = fullName.split(':');\n\n      if (split.length > 1) {\n        let type = split[0];\n\n        if (type === 'component' || type === 'helper' || type === 'modifier' || type === 'template' && split[1].indexOf('components/') === 0) {\n          return type + ':' + split[1].replace(/_/g, '-');\n        } else {\n          return type + ':' + Ember.String.dasherize(split[1].replace(/\\./g, '/'));\n        }\n      } else {\n        return fullName;\n      }\n    },\n\n    pluralize(type) {\n      return this.pluralizedTypes[type] || (this.pluralizedTypes[type] = type + 's');\n    },\n\n    podBasedLookupWithPrefix(podPrefix, parsedName) {\n      let fullNameWithoutType = parsedName.fullNameWithoutType;\n\n      if (parsedName.type === 'template') {\n        fullNameWithoutType = fullNameWithoutType.replace(/^components\\//, '');\n      }\n\n      return podPrefix + '/' + fullNameWithoutType + '/' + parsedName.type;\n    },\n\n    podBasedModuleName(parsedName) {\n      let podPrefix = this.namespace.podModulePrefix || this.namespace.modulePrefix;\n      return this.podBasedLookupWithPrefix(podPrefix, parsedName);\n    },\n\n    podBasedComponentsInSubdir(parsedName) {\n      let podPrefix = this.namespace.podModulePrefix || this.namespace.modulePrefix;\n      podPrefix = podPrefix + '/components';\n\n      if (parsedName.type === 'component' || /^components/.test(parsedName.fullNameWithoutType)) {\n        return this.podBasedLookupWithPrefix(podPrefix, parsedName);\n      }\n    },\n\n    resolveEngine(parsedName) {\n      let engineName = parsedName.fullNameWithoutType;\n      let engineModule = engineName + '/engine';\n\n      if (this._moduleRegistry.has(engineModule)) {\n        return this._extractDefaultExport(engineModule);\n      }\n    },\n\n    resolveRouteMap(parsedName) {\n      let engineName = parsedName.fullNameWithoutType;\n      let engineRoutesModule = engineName + '/routes';\n\n      if (this._moduleRegistry.has(engineRoutesModule)) {\n        let routeMap = this._extractDefaultExport(engineRoutesModule);\n\n        (true && !(routeMap.isRouteMap) && Ember.assert(`The route map for ${engineName} should be wrapped by 'buildRoutes' before exporting.`, routeMap.isRouteMap));\n        return routeMap;\n      }\n    },\n\n    resolveTemplate(parsedName) {\n      let resolved = this.resolveOther(parsedName);\n\n      if (resolved == null) {\n        resolved = Ember.TEMPLATES[parsedName.fullNameWithoutType];\n      }\n\n      return resolved;\n    },\n\n    mainModuleName(parsedName) {\n      if (parsedName.fullNameWithoutType === 'main') {\n        // if router:main or adapter:main look for a module with just the type first\n        return parsedName.prefix + '/' + parsedName.type;\n      }\n    },\n\n    defaultModuleName(parsedName) {\n      return parsedName.prefix + '/' + this.pluralize(parsedName.type) + '/' + parsedName.fullNameWithoutType;\n    },\n\n    nestedColocationComponentModuleName(parsedName) {\n      if (parsedName.type === 'component') {\n        return parsedName.prefix + '/' + this.pluralize(parsedName.type) + '/' + parsedName.fullNameWithoutType + '/index';\n      }\n    },\n\n    prefix(parsedName) {\n      let tmpPrefix = this.namespace.modulePrefix;\n\n      if (this.namespace[parsedName.type + 'Prefix']) {\n        tmpPrefix = this.namespace[parsedName.type + 'Prefix'];\n      }\n\n      return tmpPrefix;\n    },\n\n    /**\n      A listing of functions to test for moduleName's based on the provided\n     `parsedName`. This allows easy customization of additional module based\n     lookup patterns.\n      @property moduleNameLookupPatterns\n     @returns {Ember.Array}\n     */\n    moduleNameLookupPatterns: Ember.computed(function () {\n      return [this.podBasedModuleName, this.podBasedComponentsInSubdir, this.mainModuleName, this.defaultModuleName, this.nestedColocationComponentModuleName];\n    }).readOnly(),\n\n    findModuleName(parsedName, loggingDisabled) {\n      let moduleNameLookupPatterns = this.get('moduleNameLookupPatterns');\n      let moduleName;\n\n      for (let index = 0, length = moduleNameLookupPatterns.length; index < length; index++) {\n        let item = moduleNameLookupPatterns[index];\n        let tmpModuleName = item.call(this, parsedName); // allow treat all dashed and all underscored as the same thing\n        // supports components with dashes and other stuff with underscores.\n\n        if (tmpModuleName) {\n          tmpModuleName = this.chooseModuleName(tmpModuleName, parsedName);\n        }\n\n        if (tmpModuleName && this._moduleRegistry.has(tmpModuleName)) {\n          moduleName = tmpModuleName;\n        }\n\n        if (!loggingDisabled) {\n          this._logLookup(moduleName, parsedName, tmpModuleName);\n        }\n\n        if (moduleName) {\n          return moduleName;\n        }\n      }\n    },\n\n    chooseModuleName(moduleName, parsedName) {\n      let underscoredModuleName = Ember.String.underscore(moduleName);\n\n      if (moduleName !== underscoredModuleName && this._moduleRegistry.has(moduleName) && this._moduleRegistry.has(underscoredModuleName)) {\n        throw new TypeError(`Ambiguous module names: '${moduleName}' and '${underscoredModuleName}'`);\n      }\n\n      if (this._moduleRegistry.has(moduleName)) {\n        return moduleName;\n      } else if (this._moduleRegistry.has(underscoredModuleName)) {\n        return underscoredModuleName;\n      } // workaround for dasherized partials:\n      // something/something/-something => something/something/_something\n\n\n      let partializedModuleName = moduleName.replace(/\\/-([^/]*)$/, '/_$1');\n\n      if (this._moduleRegistry.has(partializedModuleName)) {\n        (true && !(false) && Ember.deprecate('Modules should not contain underscores. ' + 'Attempted to lookup \"' + moduleName + '\" which ' + 'was not found. Please rename \"' + partializedModuleName + '\" ' + 'to \"' + moduleName + '\" instead.', false, {\n          id: 'ember-resolver.underscored-modules',\n          until: '3.0.0'\n        }));\n        return partializedModuleName;\n      }\n\n      if (true\n      /* DEBUG */\n      ) {\n        let isCamelCaseHelper = parsedName.type === 'helper' && /[a-z]+[A-Z]+/.test(moduleName);\n\n        if (isCamelCaseHelper) {\n          this._camelCaseHelperWarnedNames = this._camelCaseHelperWarnedNames || [];\n          let alreadyWarned = this._camelCaseHelperWarnedNames.indexOf(parsedName.fullName) > -1;\n\n          if (!alreadyWarned && this._moduleRegistry.has(Ember.String.dasherize(moduleName))) {\n            this._camelCaseHelperWarnedNames.push(parsedName.fullName);\n\n            (true && Ember.warn('Attempted to lookup \"' + parsedName.fullName + '\" which ' + 'was not found. In previous versions of ember-resolver, a bug would have ' + 'caused the module at \"' + Ember.String.dasherize(moduleName) + '\" to be ' + 'returned for this camel case helper name. This has been fixed. ' + 'Use the dasherized name to resolve the module that would have been ' + 'returned in previous versions.', false, {\n              id: 'ember-resolver.camelcase-helper-names',\n              until: '3.0.0'\n            }));\n          }\n        }\n      }\n    },\n\n    // used by Ember.DefaultResolver.prototype._logLookup\n    lookupDescription(fullName) {\n      let parsedName = this.parseName(fullName);\n      let moduleName = this.findModuleName(parsedName, true);\n      return moduleName;\n    },\n\n    // only needed until 1.6.0-beta.2 can be required\n    _logLookup(found, parsedName, description) {\n      if (!Ember.ENV.LOG_MODULE_RESOLVER && !parsedName.root.LOG_RESOLVER) {\n        return;\n      }\n\n      let padding;\n      let symbol = found ? '[✓]' : '[ ]';\n\n      if (parsedName.fullName.length > 60) {\n        padding = '.';\n      } else {\n        padding = new Array(60 - parsedName.fullName.length).join('.');\n      }\n\n      if (!description) {\n        description = this.lookupDescription(parsedName);\n      }\n      /* eslint-disable no-console */\n\n\n      if (console && console.info) {\n        console.info(symbol, parsedName.fullName, padding, description);\n      }\n    },\n\n    knownForType(type) {\n      let moduleKeys = this._moduleRegistry.moduleNames();\n\n      let items = Object.create(null);\n\n      for (let index = 0, length = moduleKeys.length; index < length; index++) {\n        let moduleName = moduleKeys[index];\n        let fullname = this.translateToContainerFullname(type, moduleName);\n\n        if (fullname) {\n          items[fullname] = true;\n        }\n      }\n\n      return items;\n    },\n\n    translateToContainerFullname(type, moduleName) {\n      let prefix = this.prefix({\n        type\n      }); // Note: using string manipulation here rather than regexes for better performance.\n      // pod modules\n      // '^' + prefix + '/(.+)/' + type + '$'\n\n      let podPrefix = prefix + '/';\n      let podSuffix = '/' + type;\n      let start = moduleName.indexOf(podPrefix);\n      let end = moduleName.indexOf(podSuffix);\n\n      if (start === 0 && end === moduleName.length - podSuffix.length && moduleName.length > podPrefix.length + podSuffix.length) {\n        return type + ':' + moduleName.slice(start + podPrefix.length, end);\n      } // non-pod modules\n      // '^' + prefix + '/' + pluralizedType + '/(.+)$'\n\n\n      let pluralizedType = this.pluralize(type);\n      let nonPodPrefix = prefix + '/' + pluralizedType + '/';\n\n      if (moduleName.indexOf(nonPodPrefix) === 0 && moduleName.length > nonPodPrefix.length) {\n        return type + ':' + moduleName.slice(nonPodPrefix.length);\n      }\n    },\n\n    _extractDefaultExport(normalizedModuleName) {\n      let module = require(normalizedModuleName, null, null, true\n      /* force sync */\n      );\n\n      if (module && module['default']) {\n        module = module['default'];\n      }\n\n      return module;\n    }\n\n  });\n  Resolver.reopenClass({\n    moduleBasedResolver: true\n  });\n  var _default = Resolver;\n  _exports.default = _default;\n});","define(\"ember-resolver/utils/class-factory\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = classFactory;\n\n  function classFactory(klass) {\n    return {\n      create(injections) {\n        if (typeof klass.extend === 'function') {\n          return klass.extend(injections);\n        } else {\n          return klass;\n        }\n      }\n\n    };\n  }\n});","define(\"ember-test-waiters/build-waiter\", [\"exports\", \"ember-test-waiters\", \"ember-test-waiters/noop-test-waiter\"], function (_exports, _emberTestWaiters, _noopTestWaiter) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = buildWaiter;\n\n  /**\n   * Builds and returns a test waiter. The type of the\n   * returned waiter is dependent on whether the app or\n   * addon is in `DEBUG` mode or not.\n   *\n   * @param name {string} The name of the test waiter\n   * @returns {ITestWaiter}\n   *\n   * @example\n   *\n   * import Component from '@ember/component';\n   * import { buildWaiter } from 'ember-test-waiters';\n   *\n   * if (DEBUG) {\n   *   let waiter = buildWaiter('friend-waiter');\n   * }\n   *\n   * export default class Friendz extends Component {\n   *   didInsertElement() {\n   *     let token = waiter.beginAsync(this);\n   *\n   *     someAsyncWork().then(() => {\n   *       waiter.endAsync(token);\n   *     });\n   *   }\n   * }\n   */\n  function buildWaiter(name) {\n    if (true\n    /* DEBUG */\n    ) {\n      return new _emberTestWaiters.TestWaiter(name);\n    }\n\n    return new _noopTestWaiter.default(name);\n  }\n});","define(\"ember-test-waiters/index\", [\"exports\", \"ember-test-waiters/waiter-manager\", \"ember-test-waiters/test-waiter\", \"ember-test-waiters/build-waiter\", \"ember-test-waiters/wait-for-promise\"], function (_exports, _waiterManager, _testWaiter, _buildWaiter, _waitForPromise) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"register\", {\n    enumerable: true,\n    get: function () {\n      return _waiterManager.register;\n    }\n  });\n  Object.defineProperty(_exports, \"unregister\", {\n    enumerable: true,\n    get: function () {\n      return _waiterManager.unregister;\n    }\n  });\n  Object.defineProperty(_exports, \"getWaiters\", {\n    enumerable: true,\n    get: function () {\n      return _waiterManager.getWaiters;\n    }\n  });\n  Object.defineProperty(_exports, \"_reset\", {\n    enumerable: true,\n    get: function () {\n      return _waiterManager._reset;\n    }\n  });\n  Object.defineProperty(_exports, \"getPendingWaiterState\", {\n    enumerable: true,\n    get: function () {\n      return _waiterManager.getPendingWaiterState;\n    }\n  });\n  Object.defineProperty(_exports, \"hasPendingWaiters\", {\n    enumerable: true,\n    get: function () {\n      return _waiterManager.hasPendingWaiters;\n    }\n  });\n  Object.defineProperty(_exports, \"TestWaiter\", {\n    enumerable: true,\n    get: function () {\n      return _testWaiter.default;\n    }\n  });\n  Object.defineProperty(_exports, \"buildWaiter\", {\n    enumerable: true,\n    get: function () {\n      return _buildWaiter.default;\n    }\n  });\n  Object.defineProperty(_exports, \"waitForPromise\", {\n    enumerable: true,\n    get: function () {\n      return _waitForPromise.default;\n    }\n  });\n});","define(\"ember-test-waiters/noop-test-waiter\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n   * A class providing a production, noop replacement for the {TestWaiter<T>} class.\n   *\n   * @public\n   * @class TestWaiter<T>\n   */\n  class NoopTestWaiter {\n    constructor(name) {\n      this.name = name;\n    }\n\n    beginAsync() {\n      return this;\n    }\n\n    endAsync() {}\n\n    waitUntil() {\n      return true;\n    }\n\n    debugInfo() {\n      return [];\n    }\n\n    reset() {}\n\n  }\n\n  _exports.default = NoopTestWaiter;\n});","define(\"ember-test-waiters/test-waiter\", [\"exports\", \"ember-test-waiters/waiter-manager\"], function (_exports, _waiterManager) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n  let token = 0;\n\n  function getNextToken() {\n    return token++;\n  }\n  /**\n   * A class providing creation, registration and async waiting functionality.\n   *\n   * @public\n   * @class TestWaiter<T>\n   */\n\n\n  class TestWaiter {\n    /**\n     * @public\n     * @constructor\n     * @param name {WaiterName} the name of the test waiter\n     */\n    constructor(name, nextToken) {\n      this.isRegistered = false;\n      this.items = new Map();\n      this.name = name; // @ts-ignore\n\n      this.nextToken = nextToken || getNextToken;\n    }\n    /**\n     * Will register the waiter, allowing it to be opted in to pausing async\n     * operations until they're completed within your tests. You should invoke\n     * it after instantiating your `TestWaiter` instance.\n     *\n     * **Note**, if you forget to register your waiter, it will be registered\n     * for you on the first invocation of `beginAsync`.\n     *\n     * @private\n     * @method register\n     */\n\n\n    register() {\n      if (!this.isRegistered) {\n        (0, _waiterManager.register)(this);\n        this.isRegistered = true;\n      }\n    }\n    /**\n     * Should be used to signal the beginning of an async operation that\n     * is to be waited for. Invocation of this method should be paired with a subsequent\n     * `endAsync` call to indicate to the waiter system that the async operation is completed.\n     *\n     * @public\n     * @method beginAsync\n     * @param item {T} The item to register for waiting\n     * @param label {string} An optional label to identify the item\n     */\n\n\n    beginAsync(token = this.nextToken(), label) {\n      this.register();\n\n      if (this.items.has(token)) {\n        throw new Error(`beginAsync called for ${token} but it is already pending.`);\n      }\n\n      let error = new Error();\n      this.items.set(token, {\n        get stack() {\n          return error.stack;\n        },\n\n        label\n      });\n      return token;\n    }\n    /**\n     * Should be used to signal the end of an async operation. Invocation of this\n     * method should be paired with a preceeding `beginAsync` call, which would indicate the\n     * beginning of an async operation.\n     *\n     * @public\n     * @method endAsync\n     * @param item {T} The item to that was registered for waiting\n     */\n\n\n    endAsync(token) {\n      if (!this.items.has(token)) {\n        throw new Error(`endAsync called for ${token} but it is not currently pending.`);\n      }\n\n      this.items.delete(token);\n    }\n    /**\n     * Used to determine if the waiter system should still wait for async\n     * operations to complete.\n     *\n     * @public\n     * @method waitUntil\n     * @returns {boolean}\n     */\n\n\n    waitUntil() {\n      return this.items.size === 0;\n    }\n    /**\n     * Returns the `debugInfo` for each item tracking async operations in this waiter.\n     *\n     * @public\n     * @method debugInfo\n     * @returns {ITestWaiterDebugInfo}\n     */\n\n\n    debugInfo() {\n      return [...this.items.values()];\n    }\n    /**\n     * Resets the waiter state, clearing items tracking async operations in this waiter.\n     *\n     * @public\n     * @method reset\n     */\n\n\n    reset() {\n      this.items.clear();\n    }\n\n  }\n\n  _exports.default = TestWaiter;\n});","define(\"ember-test-waiters/types/index\", [], function () {\n  \"use strict\";\n});","define(\"ember-test-waiters/wait-for-promise\", [\"exports\", \"ember-test-waiters/test-waiter\"], function (_exports, _testWaiter) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = waitForPromise;\n  const PROMISE_WAITER = new _testWaiter.default('promise-waiter');\n  /**\n   * A convenient utility function to simplify waiting for a promise.\n   *\n   * @public\n   * @param promise {Promise<T>} The promise to track async operations for\n   * @param label {string} An optional string to identify the promise\n   *\n   * @example\n   *\n   * import Component from '@ember/component';\n   * import { waitForPromise } from 'ember-test-waiters';\n   *\n   * export default class Friendz extends Component {\n   *   didInsertElement() {\n   *     waitForPromise(new Promise(resolve => {\n   *       doSomeWork();\n   *       resolve();\n   *     }));\n   *   }\n   * }\n   */\n\n  function waitForPromise(promise, label) {\n    let result = promise;\n\n    if (true\n    /* DEBUG */\n    ) {\n      PROMISE_WAITER.beginAsync(promise, label);\n      result = promise.then(value => {\n        PROMISE_WAITER.endAsync(promise);\n        return value;\n      }, error => {\n        PROMISE_WAITER.endAsync(promise);\n        throw error;\n      });\n    }\n\n    return result;\n  }\n});","define(\"ember-test-waiters/waiter-manager\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.register = register;\n  _exports.unregister = unregister;\n  _exports.getWaiters = getWaiters;\n  _exports._reset = _reset;\n  _exports.getPendingWaiterState = getPendingWaiterState;\n  _exports.hasPendingWaiters = hasPendingWaiters;\n  const WAITERS = new Map();\n  /**\n   * Backwards compatibility with legacy waiters system.\n   *\n   * We want to always register a waiter using the legacy waiter system, as right\n   * now if consumers are not on the right version of @ember/test-helpers, using\n   * this addon will result in none of these waiters waiting.\n   */\n  // eslint-disable-next-line ember/new-module-imports\n\n  if (Ember.Test) {\n    Ember.Test.registerWaiter(() => !hasPendingWaiters());\n  }\n  /**\n   * Registers a waiter.\n   *\n   * @public\n   * @param waiter {IWaiter} A test waiter instance\n   */\n\n\n  function register(waiter) {\n    WAITERS.set(waiter.name, waiter);\n  }\n  /**\n   * Unregisters a waiter.\n   *\n   * @public\n   * @param waiter {IWaiter} A test waiter instance\n   */\n\n\n  function unregister(waiter) {\n    WAITERS.delete(waiter.name);\n  }\n  /**\n   * Gets an array of all waiters current registered.\n   *\n   * @public\n   * @returns {IWaiter[]}\n   */\n\n\n  function getWaiters() {\n    return [...WAITERS.values()];\n  }\n  /**\n   * Clears all waiters.\n   *\n   * @public\n   */\n\n\n  function _reset() {\n    WAITERS.clear();\n  }\n  /**\n   * Gets the current state of all waiters. Any waiters whose\n   * `waitUntil` method returns false will be considered `pending`.\n   *\n   * @returns {IPendingWaiterState} An object containing a count of all waiters\n   * pending and a `waiters` object containing the name of all pending waiters\n   * and their debug info.\n   */\n\n\n  function getPendingWaiterState() {\n    let result = {\n      pending: 0,\n      waiters: {}\n    };\n    WAITERS.forEach(waiter => {\n      if (!waiter.waitUntil()) {\n        result.pending++;\n        let debugInfo = waiter.debugInfo();\n        result.waiters[waiter.name] = debugInfo || true;\n      }\n    });\n    return result;\n  }\n  /**\n   * Determines if there are any pending waiters.\n   *\n   * @returns {boolean} `true` if there are pending waiters, otherwise `false`.\n   */\n\n\n  function hasPendingWaiters() {\n    let state = getPendingWaiterState();\n    return state.pending > 0;\n  }\n});","define(\"ember-welcome-page/components/welcome-page\", [\"exports\", \"ember-welcome-page/templates/components/welcome-page\"], function (_exports, _welcomePage) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  var _default = Ember.Component.extend({\n    layout: _welcomePage.default,\n    emberVersion: Ember.computed(function () {\n      let [major, minor] = Ember.VERSION.split(\".\");\n      return `${major}.${minor}.0`;\n    }),\n    canAngleBracket: Ember.computed(function () {\n      return true;\n    }),\n    isModuleUnification: Ember.computed(function () {\n      const config = Ember.getOwner(this).resolveRegistration('config:environment');\n      return config && config.isModuleUnification;\n    })\n  });\n\n  _exports.default = _default;\n});","define(\"ember-welcome-page/templates/components/welcome-page\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  var _default = Ember.HTMLBars.template({\n    \"id\": \"BSRfiAnZ\",\n    \"block\": \"{\\\"symbols\\\":[],\\\"statements\\\":[[10,\\\"div\\\"],[14,1,\\\"ember-welcome-page-id-selector\\\"],[15,\\\"data-ember-version\\\",[31,[[34,0]]]],[12],[2,\\\"\\\\n  \\\"],[10,\\\"div\\\"],[14,0,\\\"columns\\\"],[12],[2,\\\"\\\\n    \\\"],[10,\\\"div\\\"],[14,0,\\\"tomster\\\"],[12],[2,\\\"\\\\n      \\\"],[10,\\\"img\\\"],[14,\\\"src\\\",\\\"ember-welcome-page/images/construction.png\\\"],[14,\\\"alt\\\",\\\"Under construction\\\"],[12],[13],[2,\\\"\\\\n    \\\"],[13],[2,\\\"\\\\n    \\\"],[10,\\\"div\\\"],[14,0,\\\"welcome\\\"],[12],[2,\\\"\\\\n      \\\"],[10,\\\"h2\\\"],[14,1,\\\"title\\\"],[12],[2,\\\"Congratulations, you made it!\\\"],[13],[2,\\\"\\\\n\\\\n      \\\"],[10,\\\"p\\\"],[12],[2,\\\"You’ve officially spun up your very first Ember app :-)\\\"],[13],[2,\\\"\\\\n      \\\"],[10,\\\"p\\\"],[12],[2,\\\"You’ve got one more decision to make: what do you want to do next? We’d suggest one of the following to help you get going:\\\"],[13],[2,\\\"\\\\n      \\\"],[10,\\\"ol\\\"],[12],[2,\\\"\\\\n        \\\"],[10,\\\"li\\\"],[12],[10,\\\"a\\\"],[15,6,[31,[\\\"https://guides.emberjs.com/v\\\",[34,0],\\\"/getting-started/quick-start/\\\"]]],[12],[2,\\\"Quick Start\\\"],[13],[2,\\\" - a quick introduction to how Ember works. Learn about defining your first route, writing a UI component and deploying your application.\\\"],[13],[2,\\\"\\\\n        \\\"],[10,\\\"li\\\"],[12],[10,\\\"a\\\"],[15,6,[31,[\\\"https://guides.emberjs.com/v\\\",[34,0],\\\"/tutorial/ember-cli/\\\"]]],[12],[2,\\\"Ember Guides\\\"],[13],[2,\\\" - this is our more thorough, hands-on intro to Ember. Your crash course in Ember philosophy, background and some in-depth discussion of how things work (and why they work the way they do).\\\"],[13],[2,\\\"\\\\n      \\\"],[13],[2,\\\"\\\\n      \\\"],[10,\\\"p\\\"],[12],[2,\\\"If you run into problems, you can check \\\"],[10,\\\"a\\\"],[14,6,\\\"http://stackoverflow.com/questions/tagged/ember.js\\\"],[12],[2,\\\"Stack Overflow\\\"],[13],[2,\\\" or \\\"],[10,\\\"a\\\"],[14,6,\\\"http://discuss.emberjs.com/\\\"],[12],[2,\\\"our forums\\\"],[13],[2,\\\"  for ideas and answers—someone’s probably been through the same thing and already posted an answer.  If not, you can post your \\\"],[10,\\\"strong\\\"],[12],[2,\\\"own\\\"],[13],[2,\\\" question. 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i < reified.length; i++) {\n      var mod = reified[i];\n      reified[i] = mod.exports ? mod.exports : mod.module.exports();\n    }\n    return reified;\n  };\n\n  Module.prototype.findDeps = function (pending) {\n    if (this.state !== 'new') {\n      return;\n    }\n\n    this.state = 'pending';\n\n    var deps = this.deps;\n\n    for (var i = 0; i < deps.length; i++) {\n      var dep = deps[i];\n      var entry = this.reified[i] = { exports: undefined, module: undefined };\n      if (dep === 'exports') {\n        this.hasExportsAsDep = true;\n        entry.exports = this.module.exports;\n      } else if (dep === 'require') {\n        entry.exports = this.makeRequire();\n      } else if (dep === 'module') {\n        entry.exports = this.module;\n      } else {\n        entry.module = findModule(resolve(dep, this.id), this.id, pending);\n      }\n    }\n  };\n\n  Module.prototype.makeRequire = function () {\n    var id = this.id;\n    var r = function (dep) {\n      return require(resolve(dep, id));\n    };\n    r['default'] = r;\n    r.moduleId = id;\n    r.has = function (dep) {\n      return has(resolve(dep, id));\n    };\n    return r;\n  };\n\n  define = function (id, deps, callback) {\n    var module = registry[id];\n\n    // If a module for this id has already been defined and is in any state\n    // other than `new` (meaning it has been or is currently being required),\n    // then we return early to avoid redefinition.\n    if (module && module.state !== 'new') {\n      return;\n    }\n\n    if (arguments.length < 2) {\n      unsupportedModule(arguments.length);\n    }\n\n    if (!Array.isArray(deps)) {\n      callback = deps;\n      deps = [];\n    }\n\n    if (callback instanceof Alias) {\n      registry[id] = new Module(callback.id, deps, callback, true);\n    } else {\n      registry[id] = new Module(id, deps, callback, false);\n    }\n  };\n\n  define.exports = function (name, defaultExport) {\n    var module = registry[name];\n\n    // If a module for this name has already been defined and is in any state\n    // other than `new` (meaning it has been or is currently being required),\n    // then we return early to avoid redefinition.\n    if (module && module.state !== 'new') {\n      return;\n    }\n\n    module = new Module(name, [], noop, null);\n    module.module.exports = defaultExport;\n    module.state = 'finalized';\n    registry[name] = module;\n\n    return module;\n  };\n\n  function noop() {}\n  // we don't support all of AMD\n  // define.amd = {};\n\n  function Alias(id) {\n    this.id = id;\n  }\n\n  define.alias = function (id, target) {\n    if (arguments.length === 2) {\n      return define(target, new Alias(id));\n    }\n\n    return new Alias(id);\n  };\n\n  function missingModule(id, referrer) {\n    throw new Error('Could not find module `' + id + '` imported from `' + referrer + '`');\n  }\n\n  function findModule(id, referrer, pending) {\n    var mod = registry[id] || registry[id + '/index'];\n\n    while (mod && mod.isAlias) {\n      mod = registry[mod.id] || registry[mod.id + '/index'];\n    }\n\n    if (!mod) {\n      missingModule(id, referrer);\n    }\n\n    if (pending && mod.state !== 'pending' && mod.state !== 'finalized') {\n      mod.findDeps(pending);\n      pending.push(mod);\n    }\n    return mod;\n  }\n\n  function resolve(child, id) {\n    if (child.charAt(0) !== '.') {\n      return child;\n    }\n\n\n    var parts = child.split('/');\n    var nameParts = id.split('/');\n    var parentBase = nameParts.slice(0, -1);\n\n    for (var i = 0, l = parts.length; i < l; i++) {\n      var part = parts[i];\n\n      if (part === '..') {\n        if (parentBase.length === 0) {\n          throw new Error('Cannot access parent module of root');\n        }\n        parentBase.pop();\n      } else if (part === '.') {\n        continue;\n      } else {\n        parentBase.push(part);\n      }\n    }\n\n    return parentBase.join('/');\n  }\n\n  function has(id) {\n    return !!(registry[id] || registry[id + '/index']);\n  }\n\n  requirejs.entries = requirejs._eak_seen = registry;\n  requirejs.has = has;\n  requirejs.unsee = function (id) {\n    findModule(id, '(unsee)', false).unsee();\n  };\n\n  requirejs.clear = function () {\n    requirejs.entries = requirejs._eak_seen = registry = dict();\n    seen = dict();\n  };\n\n  // This code primes the JS engine for good performance by warming the\n  // JIT compiler for these functions.\n  define('foo', function () {});\n  define('foo/bar', [], function () {});\n  define('foo/asdf', ['module', 'exports', 'require'], function (module, exports, require) {\n    if (require.has('foo/bar')) {\n      require('foo/bar');\n    }\n  });\n  define('foo/baz', [], define.alias('foo'));\n  define('foo/quz', define.alias('foo'));\n  define.alias('foo', 'foo/qux');\n  define('foo/bar', ['foo', './quz', './baz', './asdf', './bar', '../foo'], function () {});\n  define('foo/main', ['foo/bar'], function () {});\n  define.exports('foo/exports', {});\n\n  require('foo/exports');\n  require('foo/main');\n  require.unsee('foo/bar');\n\n  requirejs.clear();\n\n  if (typeof exports === 'object' && typeof module === 'object' && module.exports) {\n    module.exports = { require: require, define: define };\n  }\n})(this);","/*!\n * @overview  Ember - JavaScript Application Framework\n * @copyright Copyright 2011-2019 Tilde Inc. and contributors\n *            Portions Copyright 2006-2011 Strobe Inc.\n *            Portions Copyright 2008-2011 Apple Inc. All rights reserved.\n * @license   Licensed under MIT license\n *            See https://raw.github.com/emberjs/ember.js/master/LICENSE\n * @version   3.18.1\n */","/*globals process */\nvar define, require, Ember; // Used in @ember/-internals/environment/lib/global.js\n\n\nmainContext = this; // eslint-disable-line no-undef\n\n(function () {\n  var registry;\n  var seen;\n\n  function missingModule(name, referrerName) {\n    if (referrerName) {\n      throw new Error('Could not find module ' + name + ' required by: ' + referrerName);\n    } else {\n      throw new Error('Could not find module ' + name);\n    }\n  }\n\n  function internalRequire(_name, referrerName) {\n    var name = _name;\n    var mod = registry[name];\n\n    if (!mod) {\n      name = name + '/index';\n      mod = registry[name];\n    }\n\n    var exports = seen[name];\n\n    if (exports !== undefined) {\n      return exports;\n    }\n\n    exports = seen[name] = {};\n\n    if (!mod) {\n      missingModule(_name, referrerName);\n    }\n\n    var deps = mod.deps;\n    var callback = mod.callback;\n    var reified = new Array(deps.length);\n\n    for (var i = 0; i < deps.length; i++) {\n      if (deps[i] === 'exports') {\n        reified[i] = exports;\n      } else if (deps[i] === 'require') {\n        reified[i] = require;\n      } else {\n        reified[i] = internalRequire(deps[i], name);\n      }\n    }\n\n    callback.apply(this, reified);\n    return exports;\n  }\n\n  var isNode = typeof window === 'undefined' && typeof process !== 'undefined' && {}.toString.call(process) === '[object process]';\n\n  if (!isNode) {\n    Ember = this.Ember = this.Ember || {};\n  }\n\n  if (typeof Ember === 'undefined') {\n    Ember = {};\n  }\n\n  if (typeof Ember.__loader === 'undefined') {\n    registry = Object.create(null);\n    seen = Object.create(null);\n\n    define = function (name, deps, callback) {\n      var value = {};\n\n      if (!callback) {\n        value.deps = [];\n        value.callback = deps;\n      } else {\n        value.deps = deps;\n        value.callback = callback;\n      }\n\n      registry[name] = value;\n    };\n\n    require = function (name) {\n      return internalRequire(name, null);\n    }; // setup `require` module\n\n\n    require['default'] = require;\n\n    require.has = function registryHas(moduleName) {\n      return Boolean(registry[moduleName]) || Boolean(registry[moduleName + '/index']);\n    };\n\n    require._eak_seen = registry;\n    Ember.__loader = {\n      define: define,\n      require: require,\n      registry: registry\n    };\n  } else {\n    define = Ember.__loader.define;\n    require = Ember.__loader.require;\n  }\n})();","define(\"@ember/-internals/browser-environment/index\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.hasDOM = _exports.isFirefox = _exports.isChrome = _exports.userAgent = _exports.history = _exports.location = _exports.window = void 0;\n  // check if window exists and actually is the global\n  var hasDom = typeof self === 'object' && self !== null && self.Object === Object && typeof Window !== 'undefined' && self.constructor === Window && typeof document === 'object' && document !== null && self.document === document && typeof location === 'object' && location !== null && self.location === location && typeof history === 'object' && history !== null && self.history === history && typeof navigator === 'object' && navigator !== null && self.navigator === navigator && typeof navigator.userAgent === 'string';\n  _exports.hasDOM = hasDom;\n  var window = hasDom ? self : null;\n  _exports.window = window;\n  var location$1 = hasDom ? self.location : null;\n  _exports.location = location$1;\n  var history$1 = hasDom ? self.history : null;\n  _exports.history = history$1;\n  var userAgent = hasDom ? self.navigator.userAgent : 'Lynx (textmode)';\n  _exports.userAgent = userAgent;\n  var isChrome = hasDom ? Boolean(window.chrome) && !window.opera : false;\n  _exports.isChrome = isChrome;\n  var isFirefox = hasDom ? typeof InstallTrigger !== 'undefined' : false;\n  _exports.isFirefox = isFirefox;\n});","define(\"@ember/-internals/console/index\", [\"exports\", \"@ember/debug\", \"@ember/deprecated-features\"], function (_exports, _debug, _deprecatedFeatures) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n  // Deliver message that the function is deprecated\n  var DEPRECATION_MESSAGE = 'Use of Ember.Logger is deprecated. Please use `console` for logging.';\n  var DEPRECATION_ID = 'ember-console.deprecate-logger';\n  var DEPRECATION_URL = 'https://emberjs.com/deprecations/v3.x#toc_use-console-rather-than-ember-logger';\n  /**\n     @module ember\n  */\n\n  /**\n    Inside Ember-Metal, simply uses the methods from `imports.console`.\n    Override this to provide more robust logging functionality.\n  \n    @class Logger\n    @deprecated Use 'console' instead\n  \n    @namespace Ember\n    @public\n  */\n\n  var DEPRECATED_LOGGER;\n\n  if (_deprecatedFeatures.LOGGER) {\n    DEPRECATED_LOGGER = {\n      /**\n      Logs the arguments to the console.\n      You can pass as many arguments as you want and they will be joined together with a space.\n       ```javascript\n      var foo = 1;\n      Ember.Logger.log('log value of foo:', foo);\n      // \"log value of foo: 1\" will be printed to the console\n      ```\n      @method log\n      @for Ember.Logger\n      @param {*} arguments\n      @public\n      */\n      log() {\n        (true && !(false) && (0, _debug.deprecate)(DEPRECATION_MESSAGE, false, {\n          id: DEPRECATION_ID,\n          until: '4.0.0',\n          url: DEPRECATION_URL\n        }));\n        return console.log(...arguments); // eslint-disable-line no-console\n      },\n\n      /**\n      Prints the arguments to the console with a warning icon.\n      You can pass as many arguments as you want and they will be joined together with a space.\n       ```javascript\n      Ember.Logger.warn('Something happened!');\n      // \"Something happened!\" will be printed to the console with a warning icon.\n      ```\n      @method warn\n      @for Ember.Logger\n      @param {*} arguments\n      @public\n      */\n      warn() {\n        (true && !(false) && (0, _debug.deprecate)(DEPRECATION_MESSAGE, false, {\n          id: DEPRECATION_ID,\n          until: '4.0.0',\n          url: DEPRECATION_URL\n        }));\n        return console.warn(...arguments); // eslint-disable-line no-console\n      },\n\n      /**\n      Prints the arguments to the console with an error icon, red text and a stack trace.\n      You can pass as many arguments as you want and they will be joined together with a space.\n       ```javascript\n      Ember.Logger.error('Danger! Danger!');\n      // \"Danger! Danger!\" will be printed to the console in red text.\n      ```\n      @method error\n      @for Ember.Logger\n      @param {*} arguments\n      @public\n      */\n      error() {\n        (true && !(false) && (0, _debug.deprecate)(DEPRECATION_MESSAGE, false, {\n          id: DEPRECATION_ID,\n          until: '4.0.0',\n          url: DEPRECATION_URL\n        }));\n        return console.error(...arguments); // eslint-disable-line no-console\n      },\n\n      /**\n      Logs the arguments to the console.\n      You can pass as many arguments as you want and they will be joined together with a space.\n       ```javascript\n      var foo = 1;\n      Ember.Logger.info('log value of foo:', foo);\n      // \"log value of foo: 1\" will be printed to the console\n      ```\n      @method info\n      @for Ember.Logger\n      @param {*} arguments\n      @public\n      */\n      info() {\n        (true && !(false) && (0, _debug.deprecate)(DEPRECATION_MESSAGE, false, {\n          id: DEPRECATION_ID,\n          until: '4.0.0',\n          url: DEPRECATION_URL\n        }));\n        return console.info(...arguments); // eslint-disable-line no-console\n      },\n\n      /**\n      Logs the arguments to the console in blue text.\n      You can pass as many arguments as you want and they will be joined together with a space.\n       ```javascript\n      var foo = 1;\n      Ember.Logger.debug('log value of foo:', foo);\n      // \"log value of foo: 1\" will be printed to the console\n      ```\n      @method debug\n      @for Ember.Logger\n      @param {*} arguments\n      @public\n      */\n      debug() {\n        (true && !(false) && (0, _debug.deprecate)(DEPRECATION_MESSAGE, false, {\n          id: DEPRECATION_ID,\n          until: '4.0.0',\n          url: DEPRECATION_URL\n        }));\n        /* eslint-disable no-console */\n\n        if (console.debug) {\n          return console.debug(...arguments);\n        }\n\n        return console.info(...arguments);\n        /* eslint-enable no-console */\n      },\n\n      /**\n      If the value passed into `Ember.Logger.assert` is not truthy it will throw an error with a stack trace.\n       ```javascript\n      Ember.Logger.assert(true); // undefined\n      Ember.Logger.assert(true === false); // Throws an Assertion failed error.\n      Ember.Logger.assert(true === false, 'Something invalid'); // Throws an Assertion failed error with message.\n      ```\n      @method assert\n      @for Ember.Logger\n      @param {Boolean} bool Value to test\n      @param {String} message Assertion message on failed\n      @public\n      */\n      assert() {\n        (true && !(false) && (0, _debug.deprecate)(DEPRECATION_MESSAGE, false, {\n          id: DEPRECATION_ID,\n          until: '4.0.0',\n          url: DEPRECATION_URL\n        }));\n        return console.assert(...arguments); // eslint-disable-line no-console\n      }\n\n    };\n  }\n\n  var _default = DEPRECATED_LOGGER;\n  _exports.default = _default;\n});","define(\"@ember/-internals/container/index\", [\"exports\", \"@ember/-internals/owner\", \"@ember/-internals/utils\", \"@ember/debug\", \"@ember/polyfills\"], function (_exports, _owner, _utils, _debug, _polyfills) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.privatize = privatize;\n  _exports.FACTORY_FOR = _exports.Container = _exports.Registry = void 0;\n  var leakTracking;\n  var containers;\n\n  if (true\n  /* DEBUG */\n  ) {\n    // requires v8\n    // chrome --js-flags=\"--allow-natives-syntax --expose-gc\"\n    // node --allow-natives-syntax --expose-gc\n    try {\n      if (typeof gc === 'function') {\n        leakTracking = (() => {\n          // avoid syntax errors when --allow-natives-syntax not present\n          var GetWeakSetValues = new Function('weakSet', 'return %GetWeakSetValues(weakSet, 0)');\n          containers = new WeakSet();\n          return {\n            hasContainers() {\n              gc();\n              return GetWeakSetValues(containers).length > 0;\n            },\n\n            reset() {\n              var values = GetWeakSetValues(containers);\n\n              for (var i = 0; i < values.length; i++) {\n                containers.delete(values[i]);\n              }\n            }\n\n          };\n        })();\n      }\n    } catch (e) {// ignore\n    }\n  }\n  /**\n   A container used to instantiate and cache objects.\n  \n   Every `Container` must be associated with a `Registry`, which is referenced\n   to determine the factory and options that should be used to instantiate\n   objects.\n  \n   The public API for `Container` is still in flux and should not be considered\n   stable.\n  \n   @private\n   @class Container\n   */\n\n\n  class Container {\n    constructor(registry, options = {}) {\n      this.registry = registry;\n      this.owner = options.owner || null;\n      this.cache = (0, _utils.dictionary)(options.cache || null);\n      this.factoryManagerCache = (0, _utils.dictionary)(options.factoryManagerCache || null);\n      this.isDestroyed = false;\n      this.isDestroying = false;\n\n      if (true\n      /* DEBUG */\n      ) {\n        this.validationCache = (0, _utils.dictionary)(options.validationCache || null);\n\n        if (containers !== undefined) {\n          containers.add(this);\n        }\n      }\n    }\n    /**\n     @private\n     @property registry\n     @type Registry\n     @since 1.11.0\n     */\n\n    /**\n     @private\n     @property cache\n     @type InheritingDict\n     */\n\n    /**\n     @private\n     @property validationCache\n     @type InheritingDict\n     */\n\n    /**\n     Given a fullName return a corresponding instance.\n      The default behavior is for lookup to return a singleton instance.\n     The singleton is scoped to the container, allowing multiple containers\n     to all have their own locally scoped singletons.\n      ```javascript\n     let registry = new Registry();\n     let container = registry.container();\n      registry.register('api:twitter', Twitter);\n      let twitter = container.lookup('api:twitter');\n      twitter instanceof Twitter; // => true\n      // by default the container will return singletons\n     let twitter2 = container.lookup('api:twitter');\n     twitter2 instanceof Twitter; // => true\n      twitter === twitter2; //=> true\n     ```\n      If singletons are not wanted, an optional flag can be provided at lookup.\n      ```javascript\n     let registry = new Registry();\n     let container = registry.container();\n      registry.register('api:twitter', Twitter);\n      let twitter = container.lookup('api:twitter', { singleton: false });\n     let twitter2 = container.lookup('api:twitter', { singleton: false });\n      twitter === twitter2; //=> false\n     ```\n      @private\n     @method lookup\n     @param {String} fullName\n     @param {Object} [options]\n     @param {String} [options.source] The fullname of the request source (used for local lookup)\n     @return {any}\n     */\n\n\n    lookup(fullName, options) {\n      if (this.isDestroyed) {\n        throw new Error(`Can not call \\`.lookup\\` after the owner has been destroyed`);\n      }\n\n      (true && !(this.registry.isValidFullName(fullName)) && (0, _debug.assert)('fullName must be a proper full name', this.registry.isValidFullName(fullName)));\n      return lookup(this, this.registry.normalize(fullName), options);\n    }\n    /**\n     A depth first traversal, destroying the container, its descendant containers and all\n     their managed objects.\n      @private\n     @method destroy\n     */\n\n\n    destroy() {\n      this.isDestroying = true;\n      destroyDestroyables(this);\n    }\n\n    finalizeDestroy() {\n      resetCache(this);\n      this.isDestroyed = true;\n    }\n    /**\n     Clear either the entire cache or just the cache for a particular key.\n        @private\n     @method reset\n     @param {String} fullName optional key to reset; if missing, resets everything\n    */\n\n\n    reset(fullName) {\n      if (this.isDestroyed) return;\n\n      if (fullName === undefined) {\n        destroyDestroyables(this);\n        resetCache(this);\n      } else {\n        resetMember(this, this.registry.normalize(fullName));\n      }\n    }\n    /**\n     Returns an object that can be used to provide an owner to a\n     manually created instance.\n      @private\n     @method ownerInjection\n     @returns { Object }\n    */\n\n\n    ownerInjection() {\n      return {\n        [_owner.OWNER]: this.owner\n      };\n    }\n    /**\n     Given a fullName, return the corresponding factory. The consumer of the factory\n     is responsible for the destruction of any factory instances, as there is no\n     way for the container to ensure instances are destroyed when it itself is\n     destroyed.\n      @public\n     @method factoryFor\n     @param {String} fullName\n     @param {Object} [options]\n     @param {String} [options.source] The fullname of the request source (used for local lookup)\n     @return {any}\n     */\n\n\n    factoryFor(fullName, options = {}) {\n      if (this.isDestroyed) {\n        throw new Error(`Can not call \\`.factoryFor\\` after the owner has been destroyed`);\n      }\n\n      var normalizedName = this.registry.normalize(fullName);\n      (true && !(this.registry.isValidFullName(normalizedName)) && (0, _debug.assert)('fullName must be a proper full name', this.registry.isValidFullName(normalizedName)));\n      (true && !(false\n      /* EMBER_MODULE_UNIFICATION */\n      || !options.namespace) && (0, _debug.assert)('EMBER_MODULE_UNIFICATION must be enabled to pass a namespace option to factoryFor', false || !options.namespace));\n\n      if (options.source || options.namespace) {\n        normalizedName = this.registry.expandLocalLookup(fullName, options);\n\n        if (!normalizedName) {\n          return;\n        }\n      }\n\n      return factoryFor(this, normalizedName, fullName);\n    }\n\n  }\n\n  _exports.Container = Container;\n\n  if (true\n  /* DEBUG */\n  ) {\n    Container._leakTracking = leakTracking;\n  }\n  /*\n   * Wrap a factory manager in a proxy which will not permit properties to be\n   * set on the manager.\n   */\n\n\n  function wrapManagerInDeprecationProxy(manager) {\n    if (_utils.HAS_NATIVE_PROXY) {\n      var validator = {\n        set(_obj, prop) {\n          throw new Error(`You attempted to set \"${prop}\" on a factory manager created by container#factoryFor. A factory manager is a read-only construct.`);\n        }\n\n      }; // Note:\n      // We have to proxy access to the manager here so that private property\n      // access doesn't cause the above errors to occur.\n\n      var m = manager;\n      var proxiedManager = {\n        class: m.class,\n\n        create(props) {\n          return m.create(props);\n        }\n\n      };\n      var proxy = new Proxy(proxiedManager, validator);\n      FACTORY_FOR.set(proxy, manager);\n    }\n\n    return manager;\n  }\n\n  function isSingleton(container, fullName) {\n    return container.registry.getOption(fullName, 'singleton') !== false;\n  }\n\n  function isInstantiatable(container, fullName) {\n    return container.registry.getOption(fullName, 'instantiate') !== false;\n  }\n\n  function lookup(container, fullName, options = {}) {\n    (true && !(false\n    /* EMBER_MODULE_UNIFICATION */\n    || !options.namespace) && (0, _debug.assert)('EMBER_MODULE_UNIFICATION must be enabled to pass a namespace option to lookup', false || !options.namespace));\n    var normalizedName = fullName;\n\n    if (options.source || options.namespace) {\n      normalizedName = container.registry.expandLocalLookup(fullName, options);\n\n      if (!normalizedName) {\n        return;\n      }\n    }\n\n    if (options.singleton !== false) {\n      var cached = container.cache[normalizedName];\n\n      if (cached !== undefined) {\n        return cached;\n      }\n    }\n\n    return instantiateFactory(container, normalizedName, fullName, options);\n  }\n\n  function factoryFor(container, normalizedName, fullName) {\n    var cached = container.factoryManagerCache[normalizedName];\n\n    if (cached !== undefined) {\n      return cached;\n    }\n\n    var factory = container.registry.resolve(normalizedName);\n\n    if (factory === undefined) {\n      return;\n    }\n\n    if (true\n    /* DEBUG */\n    && factory && typeof factory._onLookup === 'function') {\n      factory._onLookup(fullName);\n    }\n\n    var manager = new FactoryManager(container, factory, fullName, normalizedName);\n\n    if (true\n    /* DEBUG */\n    ) {\n      manager = wrapManagerInDeprecationProxy(manager);\n    }\n\n    container.factoryManagerCache[normalizedName] = manager;\n    return manager;\n  }\n\n  function isSingletonClass(container, fullName, {\n    instantiate,\n    singleton\n  }) {\n    return singleton !== false && !instantiate && isSingleton(container, fullName) && !isInstantiatable(container, fullName);\n  }\n\n  function isSingletonInstance(container, fullName, {\n    instantiate,\n    singleton\n  }) {\n    return singleton !== false && instantiate !== false && isSingleton(container, fullName) && isInstantiatable(container, fullName);\n  }\n\n  function isFactoryClass(container, fullname, {\n    instantiate,\n    singleton\n  }) {\n    return instantiate === false && (singleton === false || !isSingleton(container, fullname)) && !isInstantiatable(container, fullname);\n  }\n\n  function isFactoryInstance(container, fullName, {\n    instantiate,\n    singleton\n  }) {\n    return instantiate !== false && (singleton !== false || isSingleton(container, fullName)) && isInstantiatable(container, fullName);\n  }\n\n  function instantiateFactory(container, normalizedName, fullName, options) {\n    var factoryManager = factoryFor(container, normalizedName, fullName);\n\n    if (factoryManager === undefined) {\n      return;\n    } // SomeClass { singleton: true, instantiate: true } | { singleton: true } | { instantiate: true } | {}\n    // By default majority of objects fall into this case\n\n\n    if (isSingletonInstance(container, fullName, options)) {\n      var instance = container.cache[normalizedName] = factoryManager.create(); // if this lookup happened _during_ destruction (emits a deprecation, but\n      // is still possible) ensure that it gets destroyed\n\n      if (container.isDestroying) {\n        if (typeof instance.destroy === 'function') {\n          instance.destroy();\n        }\n      }\n\n      return instance;\n    } // SomeClass { singleton: false, instantiate: true }\n\n\n    if (isFactoryInstance(container, fullName, options)) {\n      return factoryManager.create();\n    } // SomeClass { singleton: true, instantiate: false } | { instantiate: false } | { singleton: false, instantiation: false }\n\n\n    if (isSingletonClass(container, fullName, options) || isFactoryClass(container, fullName, options)) {\n      return factoryManager.class;\n    }\n\n    throw new Error('Could not create factory');\n  }\n\n  function processInjections(container, injections, result) {\n    if (true\n    /* DEBUG */\n    ) {\n      container.registry.validateInjections(injections);\n    }\n\n    var hash = result.injections;\n\n    if (hash === undefined) {\n      hash = result.injections = {};\n    }\n\n    for (var i = 0; i < injections.length; i++) {\n      var {\n        property,\n        specifier,\n        source\n      } = injections[i];\n\n      if (source) {\n        hash[property] = lookup(container, specifier, {\n          source\n        });\n      } else {\n        hash[property] = lookup(container, specifier);\n      }\n\n      if (!result.isDynamic) {\n        result.isDynamic = !isSingleton(container, specifier);\n      }\n    }\n  }\n\n  function buildInjections(container, typeInjections, injections) {\n    var result = {\n      injections: undefined,\n      isDynamic: false\n    };\n\n    if (typeInjections !== undefined) {\n      processInjections(container, typeInjections, result);\n    }\n\n    if (injections !== undefined) {\n      processInjections(container, injections, result);\n    }\n\n    return result;\n  }\n\n  function injectionsFor(container, fullName) {\n    var registry = container.registry;\n    var [type] = fullName.split(':');\n    var typeInjections = registry.getTypeInjections(type);\n    var injections = registry.getInjections(fullName);\n    return buildInjections(container, typeInjections, injections);\n  }\n\n  function destroyDestroyables(container) {\n    var cache = container.cache;\n    var keys = Object.keys(cache);\n\n    for (var i = 0; i < keys.length; i++) {\n      var key = keys[i];\n      var value = cache[key];\n\n      if (value.destroy) {\n        value.destroy();\n      }\n    }\n  }\n\n  function resetCache(container) {\n    container.cache = (0, _utils.dictionary)(null);\n    container.factoryManagerCache = (0, _utils.dictionary)(null);\n  }\n\n  function resetMember(container, fullName) {\n    var member = container.cache[fullName];\n    delete container.factoryManagerCache[fullName];\n\n    if (member) {\n      delete container.cache[fullName];\n\n      if (member.destroy) {\n        member.destroy();\n      }\n    }\n  }\n\n  var FACTORY_FOR = new WeakMap();\n  _exports.FACTORY_FOR = FACTORY_FOR;\n\n  class FactoryManager {\n    constructor(container, factory, fullName, normalizedName) {\n      this.container = container;\n      this.owner = container.owner;\n      this.class = factory;\n      this.fullName = fullName;\n      this.normalizedName = normalizedName;\n      this.madeToString = undefined;\n      this.injections = undefined;\n      FACTORY_FOR.set(this, this);\n    }\n\n    toString() {\n      if (this.madeToString === undefined) {\n        this.madeToString = this.container.registry.makeToString(this.class, this.fullName);\n      }\n\n      return this.madeToString;\n    }\n\n    create(options) {\n      var {\n        container\n      } = this;\n\n      if (container.isDestroyed) {\n        throw new Error(`Can not create new instances after the owner has been destroyed (you attempted to create ${this.fullName})`);\n      }\n\n      var injectionsCache = this.injections;\n\n      if (injectionsCache === undefined) {\n        var {\n          injections,\n          isDynamic\n        } = injectionsFor(this.container, this.normalizedName);\n        injectionsCache = injections;\n\n        if (!isDynamic) {\n          this.injections = injections;\n        }\n      }\n\n      var props = injectionsCache;\n\n      if (options !== undefined) {\n        props = (0, _polyfills.assign)({}, injectionsCache, options);\n      }\n\n      if (true\n      /* DEBUG */\n      ) {\n        var lazyInjections;\n        var validationCache = this.container.validationCache; // Ensure that all lazy injections are valid at instantiation time\n\n        if (!validationCache[this.fullName] && this.class && typeof this.class._lazyInjections === 'function') {\n          lazyInjections = this.class._lazyInjections();\n          lazyInjections = this.container.registry.normalizeInjectionsHash(lazyInjections);\n          this.container.registry.validateInjections(lazyInjections);\n        }\n\n        validationCache[this.fullName] = true;\n      }\n\n      if (!this.class.create) {\n        throw new Error(`Failed to create an instance of '${this.normalizedName}'. Most likely an improperly defined class or an invalid module export.`);\n      } // required to allow access to things like\n      // the customized toString, _debugContainerKey,\n      // owner, etc. without a double extend and without\n      // modifying the objects properties\n\n\n      if (typeof this.class._initFactory === 'function') {\n        this.class._initFactory(this);\n      } else {\n        // in the non-EmberObject case we need to still setOwner\n        // this is required for supporting glimmer environment and\n        // template instantiation which rely heavily on\n        // `options[OWNER]` being passed into `create`\n        // TODO: clean this up, and remove in future versions\n        if (options === undefined || props === undefined) {\n          // avoid mutating `props` here since they are the cached injections\n          props = (0, _polyfills.assign)({}, props);\n        }\n\n        (0, _owner.setOwner)(props, this.owner);\n      }\n\n      var instance = this.class.create(props);\n      FACTORY_FOR.set(instance, this);\n      return instance;\n    }\n\n  }\n\n  var VALID_FULL_NAME_REGEXP = /^[^:]+:[^:]+$/;\n  /**\n   A registry used to store factory and option information keyed\n   by type.\n  \n   A `Registry` stores the factory and option information needed by a\n   `Container` to instantiate and cache objects.\n  \n   The API for `Registry` is still in flux and should not be considered stable.\n  \n   @private\n   @class Registry\n   @since 1.11.0\n  */\n\n  class Registry {\n    constructor(options = {}) {\n      this.fallback = options.fallback || null;\n      this.resolver = options.resolver || null;\n      this.registrations = (0, _utils.dictionary)(options.registrations || null);\n      this._typeInjections = (0, _utils.dictionary)(null);\n      this._injections = (0, _utils.dictionary)(null);\n      this._localLookupCache = Object.create(null);\n      this._normalizeCache = (0, _utils.dictionary)(null);\n      this._resolveCache = (0, _utils.dictionary)(null);\n      this._failSet = new Set();\n      this._options = (0, _utils.dictionary)(null);\n      this._typeOptions = (0, _utils.dictionary)(null);\n    }\n    /**\n     A backup registry for resolving registrations when no matches can be found.\n        @private\n     @property fallback\n     @type Registry\n     */\n\n    /**\n     An object that has a `resolve` method that resolves a name.\n        @private\n     @property resolver\n     @type Resolver\n     */\n\n    /**\n     @private\n     @property registrations\n     @type InheritingDict\n     */\n\n    /**\n     @private\n        @property _typeInjections\n     @type InheritingDict\n     */\n\n    /**\n     @private\n        @property _injections\n     @type InheritingDict\n     */\n\n    /**\n     @private\n        @property _normalizeCache\n     @type InheritingDict\n     */\n\n    /**\n     @private\n        @property _resolveCache\n     @type InheritingDict\n     */\n\n    /**\n     @private\n        @property _options\n     @type InheritingDict\n     */\n\n    /**\n     @private\n        @property _typeOptions\n     @type InheritingDict\n     */\n\n    /**\n     Creates a container based on this registry.\n        @private\n     @method container\n     @param {Object} options\n     @return {Container} created container\n     */\n\n\n    container(options) {\n      return new Container(this, options);\n    }\n    /**\n     Registers a factory for later injection.\n        Example:\n        ```javascript\n     let registry = new Registry();\n        registry.register('model:user', Person, {singleton: false });\n     registry.register('fruit:favorite', Orange);\n     registry.register('communication:main', Email, {singleton: false});\n     ```\n        @private\n     @method register\n     @param {String} fullName\n     @param {Function} factory\n     @param {Object} options\n     */\n\n\n    register(fullName, factory, options = {}) {\n      (true && !(this.isValidFullName(fullName)) && (0, _debug.assert)('fullName must be a proper full name', this.isValidFullName(fullName)));\n      (true && !(factory !== undefined) && (0, _debug.assert)(`Attempting to register an unknown factory: '${fullName}'`, factory !== undefined));\n      var normalizedName = this.normalize(fullName);\n      (true && !(!this._resolveCache[normalizedName]) && (0, _debug.assert)(`Cannot re-register: '${fullName}', as it has already been resolved.`, !this._resolveCache[normalizedName]));\n\n      this._failSet.delete(normalizedName);\n\n      this.registrations[normalizedName] = factory;\n      this._options[normalizedName] = options;\n    }\n    /**\n     Unregister a fullName\n        ```javascript\n     let registry = new Registry();\n     registry.register('model:user', User);\n        registry.resolve('model:user').create() instanceof User //=> true\n        registry.unregister('model:user')\n     registry.resolve('model:user') === undefined //=> true\n     ```\n        @private\n     @method unregister\n     @param {String} fullName\n     */\n\n\n    unregister(fullName) {\n      (true && !(this.isValidFullName(fullName)) && (0, _debug.assert)('fullName must be a proper full name', this.isValidFullName(fullName)));\n      var normalizedName = this.normalize(fullName);\n      this._localLookupCache = Object.create(null);\n      delete this.registrations[normalizedName];\n      delete this._resolveCache[normalizedName];\n      delete this._options[normalizedName];\n\n      this._failSet.delete(normalizedName);\n    }\n    /**\n     Given a fullName return the corresponding factory.\n        By default `resolve` will retrieve the factory from\n     the registry.\n        ```javascript\n     let registry = new Registry();\n     registry.register('api:twitter', Twitter);\n        registry.resolve('api:twitter') // => Twitter\n     ```\n        Optionally the registry can be provided with a custom resolver.\n     If provided, `resolve` will first provide the custom resolver\n     the opportunity to resolve the fullName, otherwise it will fallback\n     to the registry.\n        ```javascript\n     let registry = new Registry();\n     registry.resolver = function(fullName) {\n        // lookup via the module system of choice\n      };\n        // the twitter factory is added to the module system\n     registry.resolve('api:twitter') // => Twitter\n     ```\n        @private\n     @method resolve\n     @param {String} fullName\n     @param {Object} [options]\n     @param {String} [options.source] the fullname of the request source (used for local lookups)\n     @return {Function} fullName's factory\n     */\n\n\n    resolve(fullName, options) {\n      var factory = resolve(this, this.normalize(fullName), options);\n\n      if (factory === undefined && this.fallback !== null) {\n        factory = this.fallback.resolve(...arguments);\n      }\n\n      return factory;\n    }\n    /**\n     A hook that can be used to describe how the resolver will\n     attempt to find the factory.\n        For example, the default Ember `.describe` returns the full\n     class name (including namespace) where Ember's resolver expects\n     to find the `fullName`.\n        @private\n     @method describe\n     @param {String} fullName\n     @return {string} described fullName\n     */\n\n\n    describe(fullName) {\n      if (this.resolver !== null && this.resolver.lookupDescription) {\n        return this.resolver.lookupDescription(fullName);\n      } else if (this.fallback !== null) {\n        return this.fallback.describe(fullName);\n      } else {\n        return fullName;\n      }\n    }\n    /**\n     A hook to enable custom fullName normalization behavior\n        @private\n     @method normalizeFullName\n     @param {String} fullName\n     @return {string} normalized fullName\n     */\n\n\n    normalizeFullName(fullName) {\n      if (this.resolver !== null && this.resolver.normalize) {\n        return this.resolver.normalize(fullName);\n      } else if (this.fallback !== null) {\n        return this.fallback.normalizeFullName(fullName);\n      } else {\n        return fullName;\n      }\n    }\n    /**\n     Normalize a fullName based on the application's conventions\n        @private\n     @method normalize\n     @param {String} fullName\n     @return {string} normalized fullName\n     */\n\n\n    normalize(fullName) {\n      return this._normalizeCache[fullName] || (this._normalizeCache[fullName] = this.normalizeFullName(fullName));\n    }\n    /**\n     @method makeToString\n        @private\n     @param {any} factory\n     @param {string} fullName\n     @return {function} toString function\n     */\n\n\n    makeToString(factory, fullName) {\n      if (this.resolver !== null && this.resolver.makeToString) {\n        return this.resolver.makeToString(factory, fullName);\n      } else if (this.fallback !== null) {\n        return this.fallback.makeToString(factory, fullName);\n      } else {\n        return factory.toString();\n      }\n    }\n    /**\n     Given a fullName check if the container is aware of its factory\n     or singleton instance.\n        @private\n     @method has\n     @param {String} fullName\n     @param {Object} [options]\n     @param {String} [options.source] the fullname of the request source (used for local lookups)\n     @return {Boolean}\n     */\n\n\n    has(fullName, options) {\n      if (!this.isValidFullName(fullName)) {\n        return false;\n      }\n\n      var source = options && options.source && this.normalize(options.source);\n      var namespace = options && options.namespace || undefined;\n      return has(this, this.normalize(fullName), source, namespace);\n    }\n    /**\n     Allow registering options for all factories of a type.\n        ```javascript\n     let registry = new Registry();\n     let container = registry.container();\n        // if all of type `connection` must not be singletons\n     registry.optionsForType('connection', { singleton: false });\n        registry.register('connection:twitter', TwitterConnection);\n     registry.register('connection:facebook', FacebookConnection);\n        let twitter = container.lookup('connection:twitter');\n     let twitter2 = container.lookup('connection:twitter');\n        twitter === twitter2; // => false\n        let facebook = container.lookup('connection:facebook');\n     let facebook2 = container.lookup('connection:facebook');\n        facebook === facebook2; // => false\n     ```\n        @private\n     @method optionsForType\n     @param {String} type\n     @param {Object} options\n     */\n\n\n    optionsForType(type, options) {\n      this._typeOptions[type] = options;\n    }\n\n    getOptionsForType(type) {\n      var optionsForType = this._typeOptions[type];\n\n      if (optionsForType === undefined && this.fallback !== null) {\n        optionsForType = this.fallback.getOptionsForType(type);\n      }\n\n      return optionsForType;\n    }\n    /**\n     @private\n     @method options\n     @param {String} fullName\n     @param {Object} options\n     */\n\n\n    options(fullName, options) {\n      var normalizedName = this.normalize(fullName);\n      this._options[normalizedName] = options;\n    }\n\n    getOptions(fullName) {\n      var normalizedName = this.normalize(fullName);\n      var options = this._options[normalizedName];\n\n      if (options === undefined && this.fallback !== null) {\n        options = this.fallback.getOptions(fullName);\n      }\n\n      return options;\n    }\n\n    getOption(fullName, optionName) {\n      var options = this._options[fullName];\n\n      if (options !== undefined && options[optionName] !== undefined) {\n        return options[optionName];\n      }\n\n      var type = fullName.split(':')[0];\n      options = this._typeOptions[type];\n\n      if (options && options[optionName] !== undefined) {\n        return options[optionName];\n      } else if (this.fallback !== null) {\n        return this.fallback.getOption(fullName, optionName);\n      }\n\n      return undefined;\n    }\n    /**\n     Used only via `injection`.\n        Provides a specialized form of injection, specifically enabling\n     all objects of one type to be injected with a reference to another\n     object.\n        For example, provided each object of type `controller` needed a `router`.\n     one would do the following:\n        ```javascript\n     let registry = new Registry();\n     let container = registry.container();\n        registry.register('router:main', Router);\n     registry.register('controller:user', UserController);\n     registry.register('controller:post', PostController);\n        registry.typeInjection('controller', 'router', 'router:main');\n        let user = container.lookup('controller:user');\n     let post = container.lookup('controller:post');\n        user.router instanceof Router; //=> true\n     post.router instanceof Router; //=> true\n        // both controllers share the same router\n     user.router === post.router; //=> true\n     ```\n        @private\n     @method typeInjection\n     @param {String} type\n     @param {String} property\n     @param {String} fullName\n     */\n\n\n    typeInjection(type, property, fullName) {\n      (true && !(this.isValidFullName(fullName)) && (0, _debug.assert)('fullName must be a proper full name', this.isValidFullName(fullName)));\n      var fullNameType = fullName.split(':')[0];\n      (true && !(fullNameType !== type) && (0, _debug.assert)(`Cannot inject a '${fullName}' on other ${type}(s).`, fullNameType !== type));\n      var injections = this._typeInjections[type] || (this._typeInjections[type] = []);\n      injections.push({\n        property,\n        specifier: fullName\n      });\n    }\n    /**\n     Defines injection rules.\n        These rules are used to inject dependencies onto objects when they\n     are instantiated.\n        Two forms of injections are possible:\n        * Injecting one fullName on another fullName\n     * Injecting one fullName on a type\n        Example:\n        ```javascript\n     let registry = new Registry();\n     let container = registry.container();\n        registry.register('source:main', Source);\n     registry.register('model:user', User);\n     registry.register('model:post', Post);\n        // injecting one fullName on another fullName\n     // eg. each user model gets a post model\n     registry.injection('model:user', 'post', 'model:post');\n        // injecting one fullName on another type\n     registry.injection('model', 'source', 'source:main');\n        let user = container.lookup('model:user');\n     let post = container.lookup('model:post');\n        user.source instanceof Source; //=> true\n     post.source instanceof Source; //=> true\n        user.post instanceof Post; //=> true\n        // and both models share the same source\n     user.source === post.source; //=> true\n     ```\n        @private\n     @method injection\n     @param {String} factoryName\n     @param {String} property\n     @param {String} injectionName\n     */\n\n\n    injection(fullName, property, injectionName) {\n      (true && !(this.isValidFullName(injectionName)) && (0, _debug.assert)(`Invalid injectionName, expected: 'type:name' got: ${injectionName}`, this.isValidFullName(injectionName)));\n      var normalizedInjectionName = this.normalize(injectionName);\n\n      if (fullName.indexOf(':') === -1) {\n        return this.typeInjection(fullName, property, normalizedInjectionName);\n      }\n\n      (true && !(this.isValidFullName(fullName)) && (0, _debug.assert)('fullName must be a proper full name', this.isValidFullName(fullName)));\n      var normalizedName = this.normalize(fullName);\n      var injections = this._injections[normalizedName] || (this._injections[normalizedName] = []);\n      injections.push({\n        property,\n        specifier: normalizedInjectionName\n      });\n    }\n    /**\n     @private\n     @method knownForType\n     @param {String} type the type to iterate over\n    */\n\n\n    knownForType(type) {\n      var localKnown = (0, _utils.dictionary)(null);\n      var registeredNames = Object.keys(this.registrations);\n\n      for (var index = 0; index < registeredNames.length; index++) {\n        var fullName = registeredNames[index];\n        var itemType = fullName.split(':')[0];\n\n        if (itemType === type) {\n          localKnown[fullName] = true;\n        }\n      }\n\n      var fallbackKnown, resolverKnown;\n\n      if (this.fallback !== null) {\n        fallbackKnown = this.fallback.knownForType(type);\n      }\n\n      if (this.resolver !== null && this.resolver.knownForType) {\n        resolverKnown = this.resolver.knownForType(type);\n      }\n\n      return (0, _polyfills.assign)({}, fallbackKnown, localKnown, resolverKnown);\n    }\n\n    isValidFullName(fullName) {\n      return VALID_FULL_NAME_REGEXP.test(fullName);\n    }\n\n    getInjections(fullName) {\n      var injections = this._injections[fullName];\n\n      if (this.fallback !== null) {\n        var fallbackInjections = this.fallback.getInjections(fullName);\n\n        if (fallbackInjections !== undefined) {\n          injections = injections === undefined ? fallbackInjections : injections.concat(fallbackInjections);\n        }\n      }\n\n      return injections;\n    }\n\n    getTypeInjections(type) {\n      var injections = this._typeInjections[type];\n\n      if (this.fallback !== null) {\n        var fallbackInjections = this.fallback.getTypeInjections(type);\n\n        if (fallbackInjections !== undefined) {\n          injections = injections === undefined ? fallbackInjections : injections.concat(fallbackInjections);\n        }\n      }\n\n      return injections;\n    }\n    /**\n     Given a fullName and a source fullName returns the fully resolved\n     fullName. Used to allow for local lookup.\n        ```javascript\n     let registry = new Registry();\n        // the twitter factory is added to the module system\n     registry.expandLocalLookup('component:post-title', { source: 'template:post' }) // => component:post/post-title\n     ```\n        @private\n     @method expandLocalLookup\n     @param {String} fullName\n     @param {Object} [options]\n     @param {String} [options.source] the fullname of the request source (used for local lookups)\n     @return {String} fullName\n     */\n\n\n    expandLocalLookup(fullName, options) {\n      if (this.resolver !== null && this.resolver.expandLocalLookup) {\n        (true && !(this.isValidFullName(fullName)) && (0, _debug.assert)('fullName must be a proper full name', this.isValidFullName(fullName)));\n        (true && !(!options.source || this.isValidFullName(options.source)) && (0, _debug.assert)('options.source must be a proper full name', !options.source || this.isValidFullName(options.source)));\n        var normalizedFullName = this.normalize(fullName);\n        var normalizedSource = this.normalize(options.source);\n        return expandLocalLookup(this, normalizedFullName, normalizedSource, options.namespace);\n      } else if (this.fallback !== null) {\n        return this.fallback.expandLocalLookup(fullName, options);\n      } else {\n        return null;\n      }\n    }\n\n  }\n\n  _exports.Registry = Registry;\n\n  if (true\n  /* DEBUG */\n  ) {\n    var proto = Registry.prototype;\n\n    proto.normalizeInjectionsHash = function (hash) {\n      var injections = [];\n\n      for (var key in hash) {\n        if (hash.hasOwnProperty(key)) {\n          var {\n            specifier,\n            source,\n            namespace\n          } = hash[key];\n          (true && !(this.isValidFullName(specifier)) && (0, _debug.assert)(`Expected a proper full name, given '${specifier}'`, this.isValidFullName(specifier)));\n          injections.push({\n            property: key,\n            specifier,\n            source,\n            namespace\n          });\n        }\n      }\n\n      return injections;\n    };\n\n    proto.validateInjections = function (injections) {\n      if (!injections) {\n        return;\n      }\n\n      for (var i = 0; i < injections.length; i++) {\n        var {\n          specifier,\n          source,\n          namespace\n        } = injections[i];\n        (true && !(this.has(specifier, {\n          source,\n          namespace\n        })) && (0, _debug.assert)(`Attempting to inject an unknown injection: '${specifier}'`, this.has(specifier, {\n          source,\n          namespace\n        })));\n      }\n    };\n  }\n\n  function expandLocalLookup(registry, normalizedName, normalizedSource, namespace) {\n    var cache = registry._localLookupCache;\n    var normalizedNameCache = cache[normalizedName];\n\n    if (!normalizedNameCache) {\n      normalizedNameCache = cache[normalizedName] = Object.create(null);\n    }\n\n    var cacheKey = namespace || normalizedSource;\n    var cached = normalizedNameCache[cacheKey];\n\n    if (cached !== undefined) {\n      return cached;\n    }\n\n    var expanded = registry.resolver.expandLocalLookup(normalizedName, normalizedSource, namespace);\n    return normalizedNameCache[cacheKey] = expanded;\n  }\n\n  function resolve(registry, _normalizedName, options) {\n    var normalizedName = _normalizedName; // when `source` is provided expand normalizedName\n    // and source into the full normalizedName\n\n    if (options !== undefined && (options.source || options.namespace)) {\n      normalizedName = registry.expandLocalLookup(_normalizedName, options);\n\n      if (!normalizedName) {\n        return;\n      }\n    }\n\n    var cached = registry._resolveCache[normalizedName];\n\n    if (cached !== undefined) {\n      return cached;\n    }\n\n    if (registry._failSet.has(normalizedName)) {\n      return;\n    }\n\n    var resolved;\n\n    if (registry.resolver) {\n      resolved = registry.resolver.resolve(normalizedName);\n    }\n\n    if (resolved === undefined) {\n      resolved = registry.registrations[normalizedName];\n    }\n\n    if (resolved === undefined) {\n      registry._failSet.add(normalizedName);\n    } else {\n      registry._resolveCache[normalizedName] = resolved;\n    }\n\n    return resolved;\n  }\n\n  function has(registry, fullName, source, namespace) {\n    return registry.resolve(fullName, {\n      source,\n      namespace\n    }) !== undefined;\n  }\n\n  var privateNames = (0, _utils.dictionary)(null);\n  var privateSuffix = `${Math.random()}${Date.now()}`.replace('.', '');\n\n  function privatize([fullName]) {\n    var name = privateNames[fullName];\n\n    if (name) {\n      return name;\n    }\n\n    var [type, rawName] = fullName.split(':');\n    return privateNames[fullName] = (0, _utils.intern)(`${type}:${rawName}-${privateSuffix}`);\n  }\n  /*\n  Public API for the container is still in flux.\n  The public API, specified on the application namespace should be considered the stable API.\n  // @module container\n    @private\n  */\n\n});","define(\"@ember/-internals/environment/index\", [\"exports\", \"@ember/debug\", \"@ember/deprecated-features\"], function (_exports, _debug, _deprecatedFeatures) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.getLookup = getLookup;\n  _exports.setLookup = setLookup;\n  _exports.getENV = getENV;\n  _exports.ENV = _exports.context = _exports.global = void 0;\n\n  // from lodash to catch fake globals\n  function checkGlobal(value) {\n    return value && value.Object === Object ? value : undefined;\n  } // element ids can ruin global miss checks\n\n\n  function checkElementIdShadowing(value) {\n    return value && value.nodeType === undefined ? value : undefined;\n  } // export real global\n\n\n  var global$1 = checkGlobal(checkElementIdShadowing(typeof global === 'object' && global)) || checkGlobal(typeof self === 'object' && self) || checkGlobal(typeof window === 'object' && window) || typeof mainContext !== 'undefined' && mainContext || // set before strict mode in Ember loader/wrapper\n  new Function('return this')(); // eval outside of strict mode\n\n  _exports.global = global$1;\n\n  var context = function (global, Ember) {\n    return Ember === undefined ? {\n      imports: global,\n      exports: global,\n      lookup: global\n    } : {\n      // import jQuery\n      imports: Ember.imports || global,\n      // export Ember\n      exports: Ember.exports || global,\n      // search for Namespaces\n      lookup: Ember.lookup || global\n    };\n  }(global$1, global$1.Ember);\n\n  _exports.context = context;\n\n  function getLookup() {\n    return context.lookup;\n  }\n\n  function setLookup(value) {\n    context.lookup = value;\n  }\n  /**\n    The hash of environment variables used to control various configuration\n    settings. To specify your own or override default settings, add the\n    desired properties to a global hash named `EmberENV` (or `ENV` for\n    backwards compatibility with earlier versions of Ember). The `EmberENV`\n    hash must be created before loading Ember.\n  \n    @class EmberENV\n    @type Object\n    @public\n  */\n\n\n  var ENV = {\n    ENABLE_OPTIONAL_FEATURES: false,\n\n    /**\n      Determines whether Ember should add to `Array`, `Function`, and `String`\n      native object prototypes, a few extra methods in order to provide a more\n      friendly API.\n         We generally recommend leaving this option set to true however, if you need\n      to turn it off, you can add the configuration property\n      `EXTEND_PROTOTYPES` to `EmberENV` and set it to `false`.\n         Note, when disabled (the default configuration for Ember Addons), you will\n      instead have to access all methods and functions from the Ember\n      namespace.\n         @property EXTEND_PROTOTYPES\n      @type Boolean\n      @default true\n      @for EmberENV\n      @public\n    */\n    EXTEND_PROTOTYPES: {\n      Array: true,\n      Function: true,\n      String: true\n    },\n\n    /**\n      The `LOG_STACKTRACE_ON_DEPRECATION` property, when true, tells Ember to log\n      a full stack trace during deprecation warnings.\n         @property LOG_STACKTRACE_ON_DEPRECATION\n      @type Boolean\n      @default true\n      @for EmberENV\n      @public\n    */\n    LOG_STACKTRACE_ON_DEPRECATION: true,\n\n    /**\n      The `LOG_VERSION` property, when true, tells Ember to log versions of all\n      dependent libraries in use.\n         @property LOG_VERSION\n      @type Boolean\n      @default true\n      @for EmberENV\n      @public\n    */\n    LOG_VERSION: true,\n    RAISE_ON_DEPRECATION: false,\n    STRUCTURED_PROFILE: false,\n\n    /**\n      Whether to insert a `<div class=\"ember-view\" />` wrapper around the\n      application template. See RFC #280.\n         This is not intended to be set directly, as the implementation may change in\n      the future. Use `@ember/optional-features` instead.\n         @property _APPLICATION_TEMPLATE_WRAPPER\n      @for EmberENV\n      @type Boolean\n      @default true\n      @private\n    */\n    _APPLICATION_TEMPLATE_WRAPPER: true,\n\n    /**\n      Whether to use Glimmer Component semantics (as opposed to the classic \"Curly\"\n      components semantics) for template-only components. See RFC #278.\n         This is not intended to be set directly, as the implementation may change in\n      the future. Use `@ember/optional-features` instead.\n         @property _TEMPLATE_ONLY_GLIMMER_COMPONENTS\n      @for EmberENV\n      @type Boolean\n      @default false\n      @private\n    */\n    _TEMPLATE_ONLY_GLIMMER_COMPONENTS: false,\n\n    /**\n      Whether to perform extra bookkeeping needed to make the `captureRenderTree`\n      API work.\n         This has to be set before the ember JavaScript code is evaluated. This is\n      usually done by setting `window.EmberENV = { _DEBUG_RENDER_TREE: true };`\n      or `window.ENV = { _DEBUG_RENDER_TREE: true };` before the \"vendor\"\n      `<script>` tag in `index.html`.\n         Setting the flag after Ember is already loaded will not work correctly. It\n      may appear to work somewhat, but fundamentally broken.\n         This is not intended to be set directly. Ember Inspector will enable the\n      flag on behalf of the user as needed.\n         This flag is always on in development mode.\n         The flag is off by default in production mode, due to the cost associated\n      with the the bookkeeping work.\n         The expected flow is that Ember Inspector will ask the user to refresh the\n      page after enabling the feature. It could also offer a feature where the\n      user add some domains to the \"always on\" list. In either case, Ember\n      Inspector will inject the code on the page to set the flag if needed.\n         @property _DEBUG_RENDER_TREE\n      @for EmberENV\n      @type Boolean\n      @default false\n      @private\n    */\n    _DEBUG_RENDER_TREE: true\n    /* DEBUG */\n    ,\n\n    /**\n      Whether the app is using jQuery. See RFC #294.\n         This is not intended to be set directly, as the implementation may change in\n      the future. Use `@ember/optional-features` instead.\n         @property _JQUERY_INTEGRATION\n      @for EmberENV\n      @type Boolean\n      @default true\n      @private\n    */\n    _JQUERY_INTEGRATION: true,\n\n    /**\n      Whether the app defaults to using async observers.\n         This is not intended to be set directly, as the implementation may change in\n      the future. Use `@ember/optional-features` instead.\n         @property _DEFAULT_ASYNC_OBSERVERS\n      @for EmberENV\n      @type Boolean\n      @default false\n      @private\n    */\n    _DEFAULT_ASYNC_OBSERVERS: false,\n\n    /**\n      Controls the maximum number of scheduled rerenders without \"settling\". In general,\n      applications should not need to modify this environment variable, but please\n      open an issue so that we can determine if a better default value is needed.\n         @property _RERENDER_LOOP_LIMIT\n      @for EmberENV\n      @type number\n      @default 1000\n      @private\n     */\n    _RERENDER_LOOP_LIMIT: 1000,\n    EMBER_LOAD_HOOKS: {},\n    FEATURES: {}\n  };\n  _exports.ENV = ENV;\n  var providedEnv = global$1.EmberENV;\n\n  if (providedEnv === undefined) {\n    providedEnv = global$1.ENV;\n    (true && !(providedEnv === undefined) && (0, _debug.deprecate)(\"Configuring Ember's boot options via `window.ENV` is deprecated, please migrate to `window.EmberENV` instead.\", providedEnv === undefined, {\n      id: 'ember-environment.window.env',\n      until: '3.17.0'\n    }));\n  }\n\n  (EmberENV => {\n    if (typeof EmberENV !== 'object' || EmberENV === null) return;\n\n    for (var flag in EmberENV) {\n      if (!EmberENV.hasOwnProperty(flag) || flag === 'EXTEND_PROTOTYPES' || flag === 'EMBER_LOAD_HOOKS') continue;\n      var defaultValue = ENV[flag];\n\n      if (defaultValue === true) {\n        ENV[flag] = EmberENV[flag] !== false;\n      } else if (defaultValue === false) {\n        ENV[flag] = EmberENV[flag] === true;\n      }\n    }\n\n    var {\n      EXTEND_PROTOTYPES\n    } = EmberENV;\n\n    if (EXTEND_PROTOTYPES !== undefined) {\n      if (typeof EXTEND_PROTOTYPES === 'object' && EXTEND_PROTOTYPES !== null) {\n        ENV.EXTEND_PROTOTYPES.String = EXTEND_PROTOTYPES.String !== false;\n\n        if (_deprecatedFeatures.FUNCTION_PROTOTYPE_EXTENSIONS) {\n          ENV.EXTEND_PROTOTYPES.Function = EXTEND_PROTOTYPES.Function !== false;\n        }\n\n        ENV.EXTEND_PROTOTYPES.Array = EXTEND_PROTOTYPES.Array !== false;\n      } else {\n        var isEnabled = EXTEND_PROTOTYPES !== false;\n        ENV.EXTEND_PROTOTYPES.String = isEnabled;\n\n        if (_deprecatedFeatures.FUNCTION_PROTOTYPE_EXTENSIONS) {\n          ENV.EXTEND_PROTOTYPES.Function = isEnabled;\n        }\n\n        ENV.EXTEND_PROTOTYPES.Array = isEnabled;\n      }\n    } // TODO this does not seem to be used by anything,\n    //      can we remove it? do we need to deprecate it?\n\n\n    var {\n      EMBER_LOAD_HOOKS\n    } = EmberENV;\n\n    if (typeof EMBER_LOAD_HOOKS === 'object' && EMBER_LOAD_HOOKS !== null) {\n      for (var hookName in EMBER_LOAD_HOOKS) {\n        if (!EMBER_LOAD_HOOKS.hasOwnProperty(hookName)) continue;\n        var hooks = EMBER_LOAD_HOOKS[hookName];\n\n        if (Array.isArray(hooks)) {\n          ENV.EMBER_LOAD_HOOKS[hookName] = hooks.filter(hook => typeof hook === 'function');\n        }\n      }\n    }\n\n    var {\n      FEATURES\n    } = EmberENV;\n\n    if (typeof FEATURES === 'object' && FEATURES !== null) {\n      for (var feature in FEATURES) {\n        if (!FEATURES.hasOwnProperty(feature)) continue;\n        ENV.FEATURES[feature] = FEATURES[feature] === true;\n      }\n    }\n\n    if (true\n    /* DEBUG */\n    ) {\n      ENV._DEBUG_RENDER_TREE = true;\n    }\n  })(providedEnv);\n\n  function getENV() {\n    return ENV;\n  }\n});","define(\"@ember/-internals/error-handling/index\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.getOnerror = getOnerror;\n  _exports.setOnerror = setOnerror;\n  _exports.getDispatchOverride = getDispatchOverride;\n  _exports.setDispatchOverride = setDispatchOverride;\n  _exports.onErrorTarget = void 0;\n  var onerror;\n  var onErrorTarget = {\n    get onerror() {\n      return onerror;\n    }\n\n  }; // Ember.onerror getter\n\n  _exports.onErrorTarget = onErrorTarget;\n\n  function getOnerror() {\n    return onerror;\n  } // Ember.onerror setter\n\n\n  function setOnerror(handler) {\n    onerror = handler;\n  }\n\n  var dispatchOverride; // allows testing adapter to override dispatch\n\n  function getDispatchOverride() {\n    return dispatchOverride;\n  }\n\n  function setDispatchOverride(handler) {\n    dispatchOverride = handler;\n  }\n});","define(\"@ember/-internals/extension-support/index\", [\"exports\", \"@ember/-internals/extension-support/lib/data_adapter\", \"@ember/-internals/extension-support/lib/container_debug_adapter\"], function (_exports, _data_adapter, _container_debug_adapter) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"DataAdapter\", {\n    enumerable: true,\n    get: function () {\n      return _data_adapter.default;\n    }\n  });\n  Object.defineProperty(_exports, \"ContainerDebugAdapter\", {\n    enumerable: true,\n    get: function () {\n      return _container_debug_adapter.default;\n    }\n  });\n});","define(\"@ember/-internals/extension-support/lib/container_debug_adapter\", [\"exports\", \"@ember/string\", \"@ember/-internals/runtime\"], function (_exports, _string, _runtime) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n  @module @ember/debug\n  */\n\n  /**\n    The `ContainerDebugAdapter` helps the container and resolver interface\n    with tools that debug Ember such as the\n    [Ember Inspector](https://github.com/emberjs/ember-inspector)\n    for Chrome and Firefox.\n  \n    This class can be extended by a custom resolver implementer\n    to override some of the methods with library-specific code.\n  \n    The methods likely to be overridden are:\n  \n    * `canCatalogEntriesByType`\n    * `catalogEntriesByType`\n  \n    The adapter will need to be registered\n    in the application's container as `container-debug-adapter:main`.\n  \n    Example:\n  \n    ```javascript\n    Application.initializer({\n      name: \"containerDebugAdapter\",\n  \n      initialize(application) {\n        application.register('container-debug-adapter:main', require('app/container-debug-adapter'));\n      }\n    });\n    ```\n  \n    @class ContainerDebugAdapter\n    @extends EmberObject\n    @since 1.5.0\n    @public\n  */\n  var _default = _runtime.Object.extend({\n    /**\n      The resolver instance of the application\n      being debugged. This property will be injected\n      on creation.\n       @property resolver\n      @default null\n      @public\n    */\n    resolver: null,\n\n    /**\n      Returns true if it is possible to catalog a list of available\n      classes in the resolver for a given type.\n       @method canCatalogEntriesByType\n      @param {String} type The type. e.g. \"model\", \"controller\", \"route\".\n      @return {boolean} whether a list is available for this type.\n      @public\n    */\n    canCatalogEntriesByType(type) {\n      if (type === 'model' || type === 'template') {\n        return false;\n      }\n\n      return true;\n    },\n\n    /**\n      Returns the available classes a given type.\n       @method catalogEntriesByType\n      @param {String} type The type. e.g. \"model\", \"controller\", \"route\".\n      @return {Array} An array of strings.\n      @public\n    */\n    catalogEntriesByType(type) {\n      var namespaces = (0, _runtime.A)(_runtime.Namespace.NAMESPACES);\n      var types = (0, _runtime.A)();\n      var typeSuffixRegex = new RegExp(`${(0, _string.classify)(type)}$`);\n      namespaces.forEach(namespace => {\n        for (var key in namespace) {\n          if (!namespace.hasOwnProperty(key)) {\n            continue;\n          }\n\n          if (typeSuffixRegex.test(key)) {\n            var klass = namespace[key];\n\n            if ((0, _runtime.typeOf)(klass) === 'class') {\n              types.push((0, _string.dasherize)(key.replace(typeSuffixRegex, '')));\n            }\n          }\n        }\n      });\n      return types;\n    }\n\n  });\n\n  _exports.default = _default;\n});","define(\"@ember/-internals/extension-support/lib/data_adapter\", [\"exports\", \"@ember/-internals/owner\", \"@ember/runloop\", \"@ember/-internals/metal\", \"@ember/string\", \"@ember/-internals/runtime\"], function (_exports, _owner, _runloop, _metal, _string, _runtime) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n  @module @ember/debug\n  */\n\n  /**\n    The `DataAdapter` helps a data persistence library\n    interface with tools that debug Ember such\n    as the [Ember Inspector](https://github.com/emberjs/ember-inspector)\n    for Chrome and Firefox.\n  \n    This class will be extended by a persistence library\n    which will override some of the methods with\n    library-specific code.\n  \n    The methods likely to be overridden are:\n  \n    * `getFilters`\n    * `detect`\n    * `columnsForType`\n    * `getRecords`\n    * `getRecordColumnValues`\n    * `getRecordKeywords`\n    * `getRecordFilterValues`\n    * `getRecordColor`\n    * `observeRecord`\n  \n    The adapter will need to be registered\n    in the application's container as `dataAdapter:main`.\n  \n    Example:\n  \n    ```javascript\n    Application.initializer({\n      name: \"data-adapter\",\n  \n      initialize: function(application) {\n        application.register('data-adapter:main', DS.DataAdapter);\n      }\n    });\n    ```\n  \n    @class DataAdapter\n    @extends EmberObject\n    @public\n  */\n  var _default = _runtime.Object.extend({\n    init() {\n      this._super(...arguments);\n\n      this.releaseMethods = (0, _runtime.A)();\n    },\n\n    /**\n      The container-debug-adapter which is used\n      to list all models.\n       @property containerDebugAdapter\n      @default undefined\n      @since 1.5.0\n      @public\n    **/\n    containerDebugAdapter: undefined,\n\n    /**\n      The number of attributes to send\n      as columns. (Enough to make the record\n      identifiable).\n       @private\n      @property attributeLimit\n      @default 3\n      @since 1.3.0\n    */\n    attributeLimit: 3,\n\n    /**\n       Ember Data > v1.0.0-beta.18\n       requires string model names to be passed\n       around instead of the actual factories.\n        This is a stamp for the Ember Inspector\n       to differentiate between the versions\n       to be able to support older versions too.\n        @public\n       @property acceptsModelName\n     */\n    acceptsModelName: true,\n\n    /**\n      Stores all methods that clear observers.\n      These methods will be called on destruction.\n       @private\n      @property releaseMethods\n      @since 1.3.0\n    */\n    releaseMethods: (0, _runtime.A)(),\n\n    /**\n      Specifies how records can be filtered.\n      Records returned will need to have a `filterValues`\n      property with a key for every name in the returned array.\n       @public\n      @method getFilters\n      @return {Array} List of objects defining filters.\n       The object should have a `name` and `desc` property.\n    */\n    getFilters() {\n      return (0, _runtime.A)();\n    },\n\n    /**\n      Fetch the model types and observe them for changes.\n       @public\n      @method watchModelTypes\n       @param {Function} typesAdded Callback to call to add types.\n      Takes an array of objects containing wrapped types (returned from `wrapModelType`).\n       @param {Function} typesUpdated Callback to call when a type has changed.\n      Takes an array of objects containing wrapped types.\n       @return {Function} Method to call to remove all observers\n    */\n    watchModelTypes(typesAdded, typesUpdated) {\n      var modelTypes = this.getModelTypes();\n      var releaseMethods = (0, _runtime.A)();\n      var typesToSend;\n      typesToSend = modelTypes.map(type => {\n        var klass = type.klass;\n        var wrapped = this.wrapModelType(klass, type.name);\n        releaseMethods.push(this.observeModelType(type.name, typesUpdated));\n        return wrapped;\n      });\n      typesAdded(typesToSend);\n\n      var release = () => {\n        releaseMethods.forEach(fn => fn());\n        this.releaseMethods.removeObject(release);\n      };\n\n      this.releaseMethods.pushObject(release);\n      return release;\n    },\n\n    _nameToClass(type) {\n      if (typeof type === 'string') {\n        var owner = (0, _owner.getOwner)(this);\n        var Factory = owner.factoryFor(`model:${type}`);\n        type = Factory && Factory.class;\n      }\n\n      return type;\n    },\n\n    /**\n      Fetch the records of a given type and observe them for changes.\n       @public\n      @method watchRecords\n       @param {String} modelName The model name.\n       @param {Function} recordsAdded Callback to call to add records.\n      Takes an array of objects containing wrapped records.\n      The object should have the following properties:\n        columnValues: {Object} The key and value of a table cell.\n        object: {Object} The actual record object.\n       @param {Function} recordsUpdated Callback to call when a record has changed.\n      Takes an array of objects containing wrapped records.\n       @param {Function} recordsRemoved Callback to call when a record has removed.\n      Takes the following parameters:\n        index: The array index where the records were removed.\n        count: The number of records removed.\n       @return {Function} Method to call to remove all observers.\n    */\n    watchRecords(modelName, recordsAdded, recordsUpdated, recordsRemoved) {\n      var releaseMethods = (0, _runtime.A)();\n\n      var klass = this._nameToClass(modelName);\n\n      var records = this.getRecords(klass, modelName);\n      var release;\n\n      function recordUpdated(updatedRecord) {\n        recordsUpdated([updatedRecord]);\n      }\n\n      var recordsToSend = records.map(record => {\n        releaseMethods.push(this.observeRecord(record, recordUpdated));\n        return this.wrapRecord(record);\n      });\n\n      var contentDidChange = (array, idx, removedCount, addedCount) => {\n        for (var i = idx; i < idx + addedCount; i++) {\n          var record = (0, _metal.objectAt)(array, i);\n          var wrapped = this.wrapRecord(record);\n          releaseMethods.push(this.observeRecord(record, recordUpdated));\n          recordsAdded([wrapped]);\n        }\n\n        if (removedCount) {\n          recordsRemoved(idx, removedCount);\n        }\n      };\n\n      var observer = {\n        didChange: contentDidChange,\n\n        willChange() {\n          return this;\n        }\n\n      };\n      (0, _metal.addArrayObserver)(records, this, observer);\n\n      release = () => {\n        releaseMethods.forEach(fn => fn());\n        (0, _metal.removeArrayObserver)(records, this, observer);\n        this.releaseMethods.removeObject(release);\n      };\n\n      recordsAdded(recordsToSend);\n      this.releaseMethods.pushObject(release);\n      return release;\n    },\n\n    /**\n      Clear all observers before destruction\n      @private\n      @method willDestroy\n    */\n    willDestroy() {\n      this._super(...arguments);\n\n      this.releaseMethods.forEach(fn => fn());\n    },\n\n    /**\n      Detect whether a class is a model.\n       Test that against the model class\n      of your persistence library.\n       @public\n      @method detect\n      @return boolean Whether the class is a model class or not.\n    */\n    detect() {\n      return false;\n    },\n\n    /**\n      Get the columns for a given model type.\n       @public\n      @method columnsForType\n      @return {Array} An array of columns of the following format:\n       name: {String} The name of the column.\n       desc: {String} Humanized description (what would show in a table column name).\n    */\n    columnsForType() {\n      return (0, _runtime.A)();\n    },\n\n    /**\n      Adds observers to a model type class.\n       @private\n      @method observeModelType\n      @param {String} modelName The model type name.\n      @param {Function} typesUpdated Called when a type is modified.\n      @return {Function} The function to call to remove observers.\n    */\n    observeModelType(modelName, typesUpdated) {\n      var klass = this._nameToClass(modelName);\n\n      var records = this.getRecords(klass, modelName);\n\n      function onChange() {\n        typesUpdated([this.wrapModelType(klass, modelName)]);\n      }\n\n      var observer = {\n        didChange(array, idx, removedCount, addedCount) {\n          // Only re-fetch records if the record count changed\n          // (which is all we care about as far as model types are concerned).\n          if (removedCount > 0 || addedCount > 0) {\n            (0, _runloop.scheduleOnce)('actions', this, onChange);\n          }\n        },\n\n        willChange() {\n          return this;\n        }\n\n      };\n      (0, _metal.addArrayObserver)(records, this, observer);\n\n      var release = () => (0, _metal.removeArrayObserver)(records, this, observer);\n\n      return release;\n    },\n\n    /**\n      Wraps a given model type and observes changes to it.\n       @private\n      @method wrapModelType\n      @param {Class} klass A model class.\n      @param {String} modelName Name of the class.\n      @return {Object} Contains the wrapped type and the function to remove observers\n      Format:\n        type: {Object} The wrapped type.\n          The wrapped type has the following format:\n            name: {String} The name of the type.\n            count: {Integer} The number of records available.\n            columns: {Columns} An array of columns to describe the record.\n            object: {Class} The actual Model type class.\n        release: {Function} The function to remove observers.\n    */\n    wrapModelType(klass, name) {\n      var records = this.getRecords(klass, name);\n      var typeToSend;\n      typeToSend = {\n        name,\n        count: (0, _metal.get)(records, 'length'),\n        columns: this.columnsForType(klass),\n        object: klass\n      };\n      return typeToSend;\n    },\n\n    /**\n      Fetches all models defined in the application.\n       @private\n      @method getModelTypes\n      @return {Array} Array of model types.\n    */\n    getModelTypes() {\n      var containerDebugAdapter = this.get('containerDebugAdapter');\n      var types;\n\n      if (containerDebugAdapter.canCatalogEntriesByType('model')) {\n        types = containerDebugAdapter.catalogEntriesByType('model');\n      } else {\n        types = this._getObjectsOnNamespaces();\n      } // New adapters return strings instead of classes.\n\n\n      types = (0, _runtime.A)(types).map(name => {\n        return {\n          klass: this._nameToClass(name),\n          name\n        };\n      });\n      types = (0, _runtime.A)(types).filter(type => this.detect(type.klass));\n      return (0, _runtime.A)(types);\n    },\n\n    /**\n      Loops over all namespaces and all objects\n      attached to them.\n       @private\n      @method _getObjectsOnNamespaces\n      @return {Array} Array of model type strings.\n    */\n    _getObjectsOnNamespaces() {\n      var namespaces = (0, _runtime.A)(_runtime.Namespace.NAMESPACES);\n      var types = (0, _runtime.A)();\n      namespaces.forEach(namespace => {\n        for (var key in namespace) {\n          if (!namespace.hasOwnProperty(key)) {\n            continue;\n          } // Even though we will filter again in `getModelTypes`,\n          // we should not call `lookupFactory` on non-models\n\n\n          if (!this.detect(namespace[key])) {\n            continue;\n          }\n\n          var name = (0, _string.dasherize)(key);\n          types.push(name);\n        }\n      });\n      return types;\n    },\n\n    /**\n      Fetches all loaded records for a given type.\n       @public\n      @method getRecords\n      @return {Array} An array of records.\n       This array will be observed for changes,\n       so it should update when new records are added/removed.\n    */\n    getRecords() {\n      return (0, _runtime.A)();\n    },\n\n    /**\n      Wraps a record and observers changes to it.\n       @private\n      @method wrapRecord\n      @param {Object} record The record instance.\n      @return {Object} The wrapped record. Format:\n      columnValues: {Array}\n      searchKeywords: {Array}\n    */\n    wrapRecord(record) {\n      var recordToSend = {\n        object: record\n      };\n      recordToSend.columnValues = this.getRecordColumnValues(record);\n      recordToSend.searchKeywords = this.getRecordKeywords(record);\n      recordToSend.filterValues = this.getRecordFilterValues(record);\n      recordToSend.color = this.getRecordColor(record);\n      return recordToSend;\n    },\n\n    /**\n      Gets the values for each column.\n       @public\n      @method getRecordColumnValues\n      @return {Object} Keys should match column names defined\n      by the model type.\n    */\n    getRecordColumnValues() {\n      return {};\n    },\n\n    /**\n      Returns keywords to match when searching records.\n       @public\n      @method getRecordKeywords\n      @return {Array} Relevant keywords for search.\n    */\n    getRecordKeywords() {\n      return (0, _runtime.A)();\n    },\n\n    /**\n      Returns the values of filters defined by `getFilters`.\n       @public\n      @method getRecordFilterValues\n      @param {Object} record The record instance.\n      @return {Object} The filter values.\n    */\n    getRecordFilterValues() {\n      return {};\n    },\n\n    /**\n      Each record can have a color that represents its state.\n       @public\n      @method getRecordColor\n      @param {Object} record The record instance\n      @return {String} The records color.\n        Possible options: black, red, blue, green.\n    */\n    getRecordColor() {\n      return null;\n    },\n\n    /**\n      Observes all relevant properties and re-sends the wrapped record\n      when a change occurs.\n       @public\n      @method observerRecord\n      @return {Function} The function to call to remove all observers.\n    */\n    observeRecord() {\n      return function () {};\n    }\n\n  });\n\n  _exports.default = _default;\n});","define(\"@ember/-internals/glimmer/index\", [\"exports\", \"@ember/polyfills\", \"@glimmer/opcode-compiler\", \"@ember/-internals/metal\", \"@ember/-internals/owner\", \"@ember/-internals/runtime\", \"@ember/-internals/utils\", \"@ember/-internals/views\", \"@ember/debug\", \"@glimmer/reference\", \"@glimmer/runtime\", \"@glimmer/validator\", \"@ember/-internals/browser-environment\", \"@ember/instrumentation\", \"@ember/service\", \"@ember/runloop\", \"@ember/-internals/environment\", \"@glimmer/util\", \"@ember/deprecated-features\", \"@ember/string\", \"@ember/-internals/container\", \"@glimmer/node\", \"@ember/-internals/routing\", \"@ember/component/template-only\", \"@ember/error\", \"rsvp\"], function (_exports, _polyfills, _opcodeCompiler, _metal, _owner, _runtime, _utils, _views, _debug, _reference, _runtime2, _validator, _browserEnvironment, _instrumentation, _service, _runloop, _environment2, _util, _deprecatedFeatures, _string, _container, _node, _routing, _templateOnly, _error, _rsvp) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.template = template;\n  _exports.helper = helper;\n  _exports.escapeExpression = escapeExpression;\n  _exports.htmlSafe = htmlSafe;\n  _exports.isHTMLSafe = isHTMLSafe;\n  _exports._resetRenderers = _resetRenderers;\n  _exports.renderSettled = renderSettled;\n  _exports.getTemplate = getTemplate;\n  _exports.setTemplate = setTemplate;\n  _exports.hasTemplate = hasTemplate;\n  _exports.getTemplates = getTemplates;\n  _exports.setTemplates = setTemplates;\n  _exports.setupEngineRegistry = setupEngineRegistry;\n  _exports.setupApplicationRegistry = setupApplicationRegistry;\n  _exports._registerMacros = registerMacros;\n  _exports.capabilities = capabilities;\n  _exports.setComponentManager = setComponentManager;\n  _exports.getComponentManager = getComponentManager;\n  _exports.setModifierManager = setModifierManager;\n  _exports.getModifierManager = getModifierManager;\n  _exports.modifierCapabilities = capabilities$1;\n  _exports.setComponentTemplate = setComponentTemplate;\n  _exports.getComponentTemplate = getComponentTemplate;\n  Object.defineProperty(_exports, \"DOMChanges\", {\n    enumerable: true,\n    get: function () {\n      return _runtime2.DOMChanges;\n    }\n  });\n  Object.defineProperty(_exports, \"DOMTreeConstruction\", {\n    enumerable: true,\n    get: function () {\n      return _runtime2.DOMTreeConstruction;\n    }\n  });\n  Object.defineProperty(_exports, \"isSerializationFirstNode\", {\n    enumerable: true,\n    get: function () {\n      return _runtime2.isSerializationFirstNode;\n    }\n  });\n  Object.defineProperty(_exports, \"NodeDOMTreeConstruction\", {\n    enumerable: true,\n    get: function () {\n      return _node.NodeDOMTreeConstruction;\n    }\n  });\n  _exports.OutletView = _exports.INVOKE = _exports.AbstractComponentManager = _exports._experimentalMacros = _exports.InteractiveRenderer = _exports.InertRenderer = _exports.Renderer = _exports.SafeString = _exports.Helper = _exports.Component = _exports.LinkComponent = _exports.TextArea = _exports.TextField = _exports.Checkbox = _exports.templateCacheCounters = _exports.RootTemplate = void 0;\n\n  function isTemplateFactory(template) {\n    return typeof template === 'function';\n  }\n\n  var counters = {\n    cacheHit: 0,\n    cacheMiss: 0\n  };\n  _exports.templateCacheCounters = counters;\n\n  function template(json) {\n    var glimmerFactory = (0, _opcodeCompiler.templateFactory)(json);\n    var cache = new WeakMap();\n    var meta = glimmerFactory.meta;\n\n    var factory = owner => {\n      var result = cache.get(owner);\n\n      if (result === undefined) {\n        counters.cacheMiss++;\n        result = glimmerFactory.create((0, _polyfills.assign)({\n          owner\n        }, meta));\n        cache.set(owner, result);\n      } else {\n        counters.cacheHit++;\n      }\n\n      return result;\n    };\n\n    factory.__id = glimmerFactory.id;\n    factory.__meta = meta;\n    return factory;\n  }\n\n  var RootTemplate = template({\n    \"id\": \"s5o9bxSn\",\n    \"block\": \"{\\\"symbols\\\":[],\\\"statements\\\":[[1,[30,[36,0],[[32,0]],null]]],\\\"hasEval\\\":false,\\\"upvars\\\":[\\\"component\\\"]}\",\n    \"meta\": {\n      \"moduleName\": \"packages/@ember/-internals/glimmer/lib/templates/root.hbs\"\n    }\n  });\n  _exports.RootTemplate = RootTemplate;\n  var DIRTY_TAG = (0, _utils.symbol)('DIRTY_TAG');\n  var ARGS = (0, _utils.symbol)('ARGS');\n  var IS_DISPATCHING_ATTRS = (0, _utils.symbol)('IS_DISPATCHING_ATTRS');\n  var HAS_BLOCK = (0, _utils.symbol)('HAS_BLOCK');\n  var BOUNDS = (0, _utils.symbol)('BOUNDS');\n  /**\n  @module @ember/component\n  */\n\n  /**\n    A component is an isolated piece of UI, represented by a template and an\n    optional class. When a component has a class, its template's `this` value\n    is an instance of the component class.\n  \n    ## Template-only Components\n  \n    The simplest way to create a component is to create a template file in\n    `app/templates/components`. For example, if you name a template\n    `app/templates/components/person-profile.hbs`:\n  \n    ```app/templates/components/person-profile.hbs\n    <h1>{{@person.name}}</h1>\n    <img src={{@person.avatar}}>\n    <p class='signature'>{{@person.signature}}</p>\n    ```\n  \n    You will be able to use `<PersonProfile />` to invoke this component elsewhere\n    in your application:\n  \n    ```app/templates/application.hbs\n    <PersonProfile @person={{this.currentUser}} />\n    ```\n  \n    Note that component names are capitalized here in order to distinguish them\n    from regular HTML elements, but they are dasherized in the file system.\n  \n    While the angle bracket invocation form is generally preferred, it is also\n    possible to invoke the same component with the `{{person-profile}}` syntax:\n  \n    ```app/templates/application.hbs\n    {{person-profile person=this.currentUser}}\n    ```\n  \n    Note that with this syntax, you use dashes in the component name and\n    arguments are passed without the `@` sign.\n  \n    In both cases, Ember will render the content of the component template we\n    created above. The end result will be something like this:\n  \n    ```html\n    <h1>Tomster</h1>\n    <img src=\"https://emberjs.com/tomster.jpg\">\n    <p class='signature'>Out of office this week</p>\n    ```\n  \n    ## File System Nesting\n  \n    Components can be nested inside sub-folders for logical groupping. For\n    example, if we placed our template in\n    `app/templates/components/person/short-profile.hbs`, we can invoke it as\n    `<Person::ShortProfile />`:\n  \n    ```app/templates/application.hbs\n    <Person::ShortProfile @person={{this.currentUser}} />\n    ```\n  \n    Or equivalently, `{{person/short-profile}}`:\n  \n    ```app/templates/application.hbs\n    {{person/short-profile person=this.currentUser}}\n    ```\n  \n    ## Yielding Contents\n  \n    You can use `yield` inside a template to include the **contents** of any block\n    attached to the component. The block will be executed in its original context:\n  \n    ```handlebars\n    <PersonProfile @person={{this.currentUser}}>\n      <p>Admin mode</p>\n      {{! Executed in the current context. }}\n    </PersonProfile>\n    ```\n  \n    or\n  \n    ```handlebars\n    {{#person-profile person=this.currentUser}}\n      <p>Admin mode</p>\n      {{! Executed in the current context. }}\n    {{/person-profile}}\n    ```\n  \n    ```app/templates/components/person-profile.hbs\n    <h1>{{@person.name}}</h1>\n    {{yield}}\n    ```\n  \n    ## Customizing Components With JavaScript\n  \n    If you want to customize the component in order to handle events, transform\n    arguments or maintain internal state, you implement a subclass of `Component`.\n  \n    One example is to add computed properties to your component:\n  \n    ```app/components/person-profile.js\n    import Component from '@ember/component';\n  \n    export default Component.extend({\n      displayName: computed('person.title', 'person.firstName', 'person.lastName', function() {\n        let { title, firstName, lastName } = this;\n  \n        if (title) {\n          return `${title} ${lastName}`;\n        } else {\n          return `${firstName} ${lastName}`;\n        }\n      })\n    });\n    ```\n  \n    And then use it in the component's template:\n  \n    ```app/templates/components/person-profile.hbs\n    <h1>{{this.displayName}}</h1>\n    {{yield}}\n    ```\n  \n    ## Customizing a Component's HTML Element in JavaScript\n  \n    ### HTML Tag\n  \n    The default HTML tag name used for a component's HTML representation is `div`.\n    This can be customized by setting the `tagName` property.\n  \n    Consider the following component class:\n  \n    ```app/components/emphasized-paragraph.js\n    import Component from '@ember/component';\n  \n    export default Component.extend({\n      tagName: 'em'\n    });\n    ```\n  \n    When invoked, this component would produce output that looks something like\n    this:\n  \n    ```html\n    <em id=\"ember1\" class=\"ember-view\"></em>\n    ```\n  \n    ### HTML `class` Attribute\n  \n    The HTML `class` attribute of a component's tag can be set by providing a\n    `classNames` property that is set to an array of strings:\n  \n    ```app/components/my-widget.js\n    import Component from '@ember/component';\n  \n    export default Component.extend({\n      classNames: ['my-class', 'my-other-class']\n    });\n    ```\n  \n    Invoking this component will produce output that looks like this:\n  \n    ```html\n    <div id=\"ember1\" class=\"ember-view my-class my-other-class\"></div>\n    ```\n  \n    `class` attribute values can also be set by providing a `classNameBindings`\n    property set to an array of properties names for the component. The return\n    value of these properties will be added as part of the value for the\n    components's `class` attribute. These properties can be computed properties:\n  \n    ```app/components/my-widget.js\n    import Component from '@ember/component';\n    import { computed } from '@ember/object';\n  \n    export default Component.extend({\n      classNames: ['my-class', 'my-other-class'],\n      classNameBindings: ['propertyA', 'propertyB'],\n  \n      propertyA: 'from-a',\n      propertyB: computed(function() {\n        if (someLogic) { return 'from-b'; }\n      })\n    });\n    ```\n  \n    Invoking this component will produce HTML that looks like:\n  \n    ```html\n    <div id=\"ember1\" class=\"ember-view my-class my-other-class from-a from-b\"></div>\n    ```\n  \n    Note that `classNames` and `classNameBindings` is in addition to the `class`\n    attribute passed with the angle bracket invocation syntax. Therefore, if this\n    component was invoked like so:\n  \n    ```handlebars\n    <MyWidget class=\"from-invocation\" />\n    ```\n  \n    The resulting HTML will look similar to this:\n  \n    ```html\n    <div id=\"ember1\" class=\"from-invocation ember-view my-class my-other-class from-a from-b\"></div>\n    ```\n  \n    If the value of a class name binding returns a boolean the property name\n    itself will be used as the class name if the property is true. The class name\n    will not be added if the value is `false` or `undefined`.\n  \n    ```app/components/my-widget.js\n    import Component from '@ember/component';\n  \n    export default Component.extend({\n      classNameBindings: ['hovered'],\n  \n      hovered: true\n    });\n    ```\n  \n    Invoking this component will produce HTML that looks like:\n  \n    ```html\n    <div id=\"ember1\" class=\"ember-view hovered\"></div>\n    ```\n  \n    ### Custom Class Names for Boolean Values\n  \n    When using boolean class name bindings you can supply a string value other\n    than the property name for use as the `class` HTML attribute by appending the\n    preferred value after a \":\" character when defining the binding:\n  \n    ```app/components/my-widget.js\n    import Component from '@ember/component';\n  \n    export default Component.extend({\n      classNameBindings: ['awesome:so-very-cool'],\n  \n      awesome: true\n    });\n    ```\n  \n    Invoking this component will produce HTML that looks like:\n  \n    ```html\n    <div id=\"ember1\" class=\"ember-view so-very-cool\"></div>\n    ```\n  \n    Boolean value class name bindings whose property names are in a\n    camelCase-style format will be converted to a dasherized format:\n  \n    ```app/components/my-widget.js\n    import Component from '@ember/component';\n  \n    export default Component.extend({\n      classNameBindings: ['isUrgent'],\n  \n      isUrgent: true\n    });\n    ```\n  \n    Invoking this component will produce HTML that looks like:\n  \n    ```html\n    <div id=\"ember1\" class=\"ember-view is-urgent\"></div>\n    ```\n  \n    Class name bindings can also refer to object values that are found by\n    traversing a path relative to the component itself:\n  \n    ```app/components/my-widget.js\n    import Component from '@ember/component';\n    import EmberObject from '@ember/object';\n  \n    export default Component.extend({\n      classNameBindings: ['messages.empty'],\n  \n      messages: EmberObject.create({\n        empty: true\n      })\n    });\n    ```\n  \n    Invoking this component will produce HTML that looks like:\n  \n    ```html\n    <div id=\"ember1\" class=\"ember-view empty\"></div>\n    ```\n  \n    If you want to add a class name for a property which evaluates to true and\n    and a different class name if it evaluates to false, you can pass a binding\n    like this:\n  \n    ```app/components/my-widget.js\n    import Component from '@ember/component';\n  \n    export default Component.extend({\n      classNameBindings: ['isEnabled:enabled:disabled'],\n      isEnabled: true\n    });\n    ```\n  \n    Invoking this component will produce HTML that looks like:\n  \n    ```html\n    <div id=\"ember1\" class=\"ember-view enabled\"></div>\n    ```\n  \n    When isEnabled is `false`, the resulting HTML representation looks like this:\n  \n    ```html\n    <div id=\"ember1\" class=\"ember-view disabled\"></div>\n    ```\n  \n    This syntax offers the convenience to add a class if a property is `false`:\n  \n    ```app/components/my-widget.js\n    import Component from '@ember/component';\n  \n    // Applies no class when isEnabled is true and class 'disabled' when isEnabled is false\n    export default Component.extend({\n      classNameBindings: ['isEnabled::disabled'],\n      isEnabled: true\n    });\n    ```\n  \n    Invoking this component when the `isEnabled` property is true will produce\n    HTML that looks like:\n  \n    ```html\n    <div id=\"ember1\" class=\"ember-view\"></div>\n    ```\n  \n    Invoking it when the `isEnabled` property on the component is `false` will\n    produce HTML that looks like:\n  \n    ```html\n    <div id=\"ember1\" class=\"ember-view disabled\"></div>\n    ```\n  \n    Updates to the value of a class name binding will result in automatic update\n    of the  HTML `class` attribute in the component's rendered HTML\n    representation. If the value becomes `false` or `undefined` the class name\n    will be removed.\n  \n    Both `classNames` and `classNameBindings` are concatenated properties. See\n    [EmberObject](/ember/release/classes/EmberObject) documentation for more\n    information about concatenated properties.\n  \n    ### Other HTML Attributes\n  \n    The HTML attribute section of a component's tag can be set by providing an\n    `attributeBindings` property set to an array of property names on the component.\n    The return value of these properties will be used as the value of the component's\n    HTML associated attribute:\n  \n    ```app/components/my-anchor.js\n    import Component from '@ember/component';\n  \n    export default Component.extend({\n      tagName: 'a',\n      attributeBindings: ['href'],\n  \n      href: 'http://google.com'\n    });\n    ```\n  \n    Invoking this component will produce HTML that looks like:\n  \n    ```html\n    <a id=\"ember1\" class=\"ember-view\" href=\"http://google.com\"></a>\n    ```\n  \n    One property can be mapped on to another by placing a \":\" between\n    the source property and the destination property:\n  \n    ```app/components/my-anchor.js\n    import Component from '@ember/component';\n  \n    export default Component.extend({\n      tagName: 'a',\n      attributeBindings: ['url:href'],\n  \n      url: 'http://google.com'\n    });\n    ```\n  \n    Invoking this component will produce HTML that looks like:\n  \n    ```html\n    <a id=\"ember1\" class=\"ember-view\" href=\"http://google.com\"></a>\n    ```\n  \n    HTML attributes passed with angle bracket invocations will take precedence\n    over those specified in `attributeBindings`. Therefore, if this component was\n    invoked like so:\n  \n    ```handlebars\n    <MyAnchor href=\"http://bing.com\" @url=\"http://google.com\" />\n    ```\n  \n    The resulting HTML will looks like this:\n  \n    ```html\n    <a id=\"ember1\" class=\"ember-view\" href=\"http://bing.com\"></a>\n    ```\n  \n    Note that the `href` attribute is ultimately set to `http://bing.com`,\n    despite it having attribute binidng to the `url` property, which was\n    set to `http://google.com`.\n  \n    Namespaced attributes (e.g. `xlink:href`) are supported, but have to be\n    mapped, since `:` is not a valid character for properties in Javascript:\n  \n    ```app/components/my-use.js\n    import Component from '@ember/component';\n  \n    export default Component.extend({\n      tagName: 'use',\n      attributeBindings: ['xlinkHref:xlink:href'],\n  \n      xlinkHref: '#triangle'\n    });\n    ```\n  \n    Invoking this component will produce HTML that looks like:\n  \n    ```html\n    <use xlink:href=\"#triangle\"></use>\n    ```\n  \n    If the value of a property monitored by `attributeBindings` is a boolean, the\n    attribute will be present or absent depending on the value:\n  \n    ```app/components/my-text-input.js\n    import Component from '@ember/component';\n  \n    export default Component.extend({\n      tagName: 'input',\n      attributeBindings: ['disabled'],\n  \n      disabled: false\n    });\n    ```\n  \n    Invoking this component will produce HTML that looks like:\n  \n    ```html\n    <input id=\"ember1\" class=\"ember-view\" />\n    ```\n  \n    `attributeBindings` can refer to computed properties:\n  \n    ```app/components/my-text-input.js\n    import Component from '@ember/component';\n    import { computed } from '@ember/object';\n  \n    export default Component.extend({\n      tagName: 'input',\n      attributeBindings: ['disabled'],\n  \n      disabled: computed(function() {\n        if (someLogic) {\n          return true;\n        } else {\n          return false;\n        }\n      })\n    });\n    ```\n  \n    To prevent setting an attribute altogether, use `null` or `undefined` as the\n    value of the property used in `attributeBindings`:\n  \n    ```app/components/my-text-input.js\n    import Component from '@ember/component';\n  \n    export default Component.extend({\n      tagName: 'form',\n      attributeBindings: ['novalidate'],\n      novalidate: null\n    });\n    ```\n  \n    Updates to the property of an attribute binding will result in automatic\n    update of the  HTML attribute in the component's HTML output.\n  \n    `attributeBindings` is a concatenated property. See\n    [EmberObject](/ember/release/classes/EmberObject) documentation for more\n    information about concatenated properties.\n  \n    ## Layouts\n  \n    The `layout` property can be used to dynamically specify a template associated\n    with a component class, instead of relying on Ember to link together a\n    component class and a template based on file names.\n  \n    In general, applications should not use this feature, but it's commonly used\n    in addons for historical reasons.\n  \n    The `layout` property should be set to the default export of a template\n    module, which is the name of a template file without the `.hbs` extension.\n  \n    ```app/templates/components/person-profile.hbs\n    <h1>Person's Title</h1>\n    <div class='details'>{{yield}}</div>\n    ```\n  \n    ```app/components/person-profile.js\n      import Component from '@ember/component';\n      import layout from '../templates/components/person-profile';\n  \n      export default Component.extend({\n        layout\n      });\n    ```\n  \n    If you invoke the component:\n  \n    ```handlebars\n    <PersonProfile>\n      <h2>Chief Basket Weaver</h2>\n      <h3>Fisherman Industries</h3>\n    </PersonProfile>\n    ```\n  \n    or\n  \n    ```handlebars\n    {{#person-profile}}\n      <h2>Chief Basket Weaver</h2>\n      <h3>Fisherman Industries</h3>\n    {{/person-profile}}\n    ```\n  \n    It will result in the following HTML output:\n  \n    ```html\n    <h1>Person's Title</h1>\n      <div class=\"details\">\n      <h2>Chief Basket Weaver</h2>\n      <h3>Fisherman Industries</h3>\n    </div>\n    ```\n  \n    ## Handling Browser Events\n  \n    Components can respond to user-initiated events in one of three ways: passing\n    actions with angle bracket invocation, adding event handler methods to the\n    component's class, or adding actions to the component's template.\n  \n    ### Passing Actions With Angle Bracket Invocation\n  \n    For one-off events specific to particular instance of a component, it is possible\n    to pass actions to the component's element using angle bracket invocation syntax.\n  \n    ```handlebars\n    <MyWidget {{action 'firstWidgetClicked'}} />\n  \n    <MyWidget {{action 'secondWidgetClicked'}} />\n    ```\n  \n    In this case, when the first component is clicked on, Ember will invoke the\n    `firstWidgetClicked` action. When the second component is clicked on, Ember\n    will invoke the `secondWidgetClicked` action instead.\n  \n    Besides `{{action}}`, it is also possible to pass any arbitrary element modifiers\n    using the angle bracket invocation syntax.\n  \n    ### Event Handler Methods\n  \n    Components can also respond to user-initiated events by implementing a method\n    that matches the event name. This approach is appropriate when the same event\n    should be handled by all instances of the same component.\n  \n    An event object will be passed as the argument to the event handler method.\n  \n    ```app/components/my-widget.js\n    import Component from '@ember/component';\n  \n    export default Component.extend({\n      click(event) {\n        // `event.target` is either the component's element or one of its children\n        let tag = event.target.tagName.toLowerCase();\n        console.log('clicked on a `<${tag}>` HTML element!');\n      }\n    });\n    ```\n  \n    In this example, whenever the user clicked anywhere inside the component, it\n    will log a message to the console.\n  \n    It is possible to handle event types other than `click` by implementing the\n    following event handler methods. In addition, custom events can be registered\n    by using `Application.customEvents`.\n  \n    Touch events:\n  \n    * `touchStart`\n    * `touchMove`\n    * `touchEnd`\n    * `touchCancel`\n  \n    Keyboard events:\n  \n    * `keyDown`\n    * `keyUp`\n    * `keyPress`\n  \n    Mouse events:\n  \n    * `mouseDown`\n    * `mouseUp`\n    * `contextMenu`\n    * `click`\n    * `doubleClick`\n    * `focusIn`\n    * `focusOut`\n  \n    Form events:\n  \n    * `submit`\n    * `change`\n    * `focusIn`\n    * `focusOut`\n    * `input`\n  \n    Drag and drop events:\n  \n    * `dragStart`\n    * `drag`\n    * `dragEnter`\n    * `dragLeave`\n    * `dragOver`\n    * `dragEnd`\n    * `drop`\n  \n    ### `{{action}}` Helper\n  \n    Instead of handling all events of a particular type anywhere inside the\n    component's element, you may instead want to limit it to a particular\n    element in the component's template. In this case, it would be more\n    convenient to implement an action instead.\n  \n    For example, you could implement the action `hello` for the `person-profile`\n    component:\n  \n    ```app/components/person-profile.js\n    import Component from '@ember/component';\n  \n    export default Component.extend({\n      actions: {\n        hello(name) {\n          console.log(\"Hello\", name);\n        }\n      }\n    });\n    ```\n  \n    And then use it in the component's template:\n  \n    ```app/templates/components/person-profile.hbs\n    <h1>{{@person.name}}</h1>\n  \n    <button {{action 'hello' @person.name}}>\n      Say Hello to {{@person.name}}\n    </button>\n    ```\n  \n    When the user clicks the button, Ember will invoke the `hello` action,\n    passing in the current value of `@person.name` as an argument.\n  \n    See [Ember.Templates.helpers.action](/ember/release/classes/Ember.Templates.helpers/methods/action?anchor=action).\n  \n    @class Component\n    @extends Ember.CoreView\n    @uses Ember.TargetActionSupport\n    @uses Ember.ClassNamesSupport\n    @uses Ember.ActionSupport\n    @uses Ember.ViewMixin\n    @uses Ember.ViewStateSupport\n    @public\n  */\n\n  var Component = _views.CoreView.extend(_views.ChildViewsSupport, _views.ViewStateSupport, _views.ClassNamesSupport, _runtime.TargetActionSupport, _views.ActionSupport, _views.ViewMixin, {\n    isComponent: true,\n\n    init() {\n      this._super(...arguments);\n\n      this[IS_DISPATCHING_ATTRS] = false;\n      this[DIRTY_TAG] = (0, _validator.createTag)();\n      this[BOUNDS] = null;\n\n      if (true\n      /* DEBUG */\n      && this.renderer._destinedForDOM && this.tagName === '') {\n        var eventNames = [];\n        var eventDispatcher = (0, _owner.getOwner)(this).lookup('event_dispatcher:main');\n        var events = eventDispatcher && eventDispatcher._finalEvents || {}; // tslint:disable-next-line:forin\n\n        for (var key in events) {\n          var methodName = events[key];\n\n          if (typeof this[methodName] === 'function') {\n            eventNames.push(methodName);\n          }\n        } // If in a tagless component, assert that no event handlers are defined\n\n\n        (true && !(!eventNames.length) && (0, _debug.assert)( // tslint:disable-next-line:max-line-length\n        `You can not define \\`${eventNames}\\` function(s) to handle DOM event in the \\`${this}\\` tagless component since it doesn't have any DOM element.`, !eventNames.length));\n      }\n\n      (true && !(this.mouseEnter === undefined) && (0, _debug.deprecate)(`${this}: Using \\`mouseEnter\\` event handler methods in components has been deprecated.`, this.mouseEnter === undefined, {\n        id: 'ember-views.event-dispatcher.mouseenter-leave-move',\n        until: '4.0.0',\n        url: 'https://emberjs.com/deprecations/v3.x#toc_component-mouseenter-leave-move'\n      }));\n      (true && !(this.mouseLeave === undefined) && (0, _debug.deprecate)(`${this}: Using \\`mouseLeave\\` event handler methods in components has been deprecated.`, this.mouseLeave === undefined, {\n        id: 'ember-views.event-dispatcher.mouseenter-leave-move',\n        until: '4.0.0',\n        url: 'https://emberjs.com/deprecations/v3.x#toc_component-mouseenter-leave-move'\n      }));\n      (true && !(this.mouseMove === undefined) && (0, _debug.deprecate)(`${this}: Using \\`mouseMove\\` event handler methods in components has been deprecated.`, this.mouseMove === undefined, {\n        id: 'ember-views.event-dispatcher.mouseenter-leave-move',\n        until: '4.0.0',\n        url: 'https://emberjs.com/deprecations/v3.x#toc_component-mouseenter-leave-move'\n      }));\n    },\n\n    rerender() {\n      (0, _validator.dirtyTag)(this[DIRTY_TAG]);\n\n      this._super();\n    },\n\n    [_metal.PROPERTY_DID_CHANGE](key, value) {\n      if (this[IS_DISPATCHING_ATTRS]) {\n        return;\n      }\n\n      var args = this[ARGS];\n      var reference = args !== undefined ? args[key] : undefined;\n\n      if (reference !== undefined && reference[_reference.UPDATE_REFERENCED_VALUE] !== undefined) {\n        reference[_reference.UPDATE_REFERENCED_VALUE](arguments.length === 2 ? value : (0, _metal.get)(this, key));\n      }\n    },\n\n    getAttr(key) {\n      // TODO Intimate API should be deprecated\n      return this.get(key);\n    },\n\n    /**\n      Normally, Ember's component model is \"write-only\". The component takes a\n      bunch of attributes that it got passed in, and uses them to render its\n      template.\n       One nice thing about this model is that if you try to set a value to the\n      same thing as last time, Ember (through HTMLBars) will avoid doing any\n      work on the DOM.\n       This is not just a performance optimization. If an attribute has not\n      changed, it is important not to clobber the element's \"hidden state\".\n      For example, if you set an input's `value` to the same value as before,\n      it will clobber selection state and cursor position. In other words,\n      setting an attribute is not **always** idempotent.\n       This method provides a way to read an element's attribute and also\n      update the last value Ember knows about at the same time. This makes\n      setting an attribute idempotent.\n       In particular, what this means is that if you get an `<input>` element's\n      `value` attribute and then re-render the template with the same value,\n      it will avoid clobbering the cursor and selection position.\n      Since most attribute sets are idempotent in the browser, you typically\n      can get away with reading attributes using jQuery, but the most reliable\n      way to do so is through this method.\n      @method readDOMAttr\n       @param {String} name the name of the attribute\n      @return String\n      @public\n     */\n    readDOMAttr(name) {\n      // TODO revisit this\n      var _element = (0, _views.getViewElement)(this);\n\n      (true && !(_element !== null) && (0, _debug.assert)(`Cannot call \\`readDOMAttr\\` on ${this} which does not have an element`, _element !== null));\n      var element = _element;\n      var isSVG = element.namespaceURI === \"http://www.w3.org/2000/svg\"\n      /* SVG */\n      ;\n      var {\n        type,\n        normalized\n      } = (0, _runtime2.normalizeProperty)(element, name);\n\n      if (isSVG || type === 'attr') {\n        return element.getAttribute(normalized);\n      }\n\n      return element[normalized];\n    },\n\n    /**\n     The WAI-ARIA role of the control represented by this view. For example, a\n     button may have a role of type 'button', or a pane may have a role of\n     type 'alertdialog'. This property is used by assistive software to help\n     visually challenged users navigate rich web applications.\n      The full list of valid WAI-ARIA roles is available at:\n     [https://www.w3.org/TR/wai-aria/#roles_categorization](https://www.w3.org/TR/wai-aria/#roles_categorization)\n      @property ariaRole\n     @type String\n     @default null\n     @public\n     */\n\n    /**\n     Enables components to take a list of parameters as arguments.\n     For example, a component that takes two parameters with the names\n     `name` and `age`:\n      ```app/components/my-component.js\n     import Component from '@ember/component';\n      let MyComponent = Component.extend();\n      MyComponent.reopenClass({\n       positionalParams: ['name', 'age']\n     });\n      export default MyComponent;\n     ```\n      It can then be invoked like this:\n      ```hbs\n     {{my-component \"John\" 38}}\n     ```\n      The parameters can be referred to just like named parameters:\n      ```hbs\n     Name: {{name}}, Age: {{age}}.\n     ```\n      Using a string instead of an array allows for an arbitrary number of\n     parameters:\n      ```app/components/my-component.js\n     import Component from '@ember/component';\n      let MyComponent = Component.extend();\n      MyComponent.reopenClass({\n       positionalParams: 'names'\n     });\n      export default MyComponent;\n     ```\n      It can then be invoked like this:\n      ```hbs\n     {{my-component \"John\" \"Michael\" \"Scott\"}}\n     ```\n     The parameters can then be referred to by enumerating over the list:\n      ```hbs\n     {{#each names as |name|}}{{name}}{{/each}}\n     ```\n      @static\n     @public\n     @property positionalParams\n     @since 1.13.0\n     */\n\n    /**\n     Called when the attributes passed into the component have been updated.\n     Called both during the initial render of a container and during a rerender.\n     Can be used in place of an observer; code placed here will be executed\n     every time any attribute updates.\n     @method didReceiveAttrs\n     @public\n     @since 1.13.0\n     */\n    didReceiveAttrs() {},\n\n    /**\n     Called when the attributes passed into the component have been updated.\n     Called both during the initial render of a container and during a rerender.\n     Can be used in place of an observer; code placed here will be executed\n     every time any attribute updates.\n     @event didReceiveAttrs\n     @public\n     @since 1.13.0\n     */\n\n    /**\n     Called after a component has been rendered, both on initial render and\n     in subsequent rerenders.\n     @method didRender\n     @public\n     @since 1.13.0\n     */\n    didRender() {},\n\n    /**\n     Called after a component has been rendered, both on initial render and\n     in subsequent rerenders.\n     @event didRender\n     @public\n     @since 1.13.0\n     */\n\n    /**\n     Called before a component has been rendered, both on initial render and\n     in subsequent rerenders.\n     @method willRender\n     @public\n     @since 1.13.0\n     */\n    willRender() {},\n\n    /**\n     Called before a component has been rendered, both on initial render and\n     in subsequent rerenders.\n     @event willRender\n     @public\n     @since 1.13.0\n     */\n\n    /**\n     Called when the attributes passed into the component have been changed.\n     Called only during a rerender, not during an initial render.\n     @method didUpdateAttrs\n     @public\n     @since 1.13.0\n     */\n    didUpdateAttrs() {},\n\n    /**\n     Called when the attributes passed into the component have been changed.\n     Called only during a rerender, not during an initial render.\n     @event didUpdateAttrs\n     @public\n     @since 1.13.0\n     */\n\n    /**\n     Called when the component is about to update and rerender itself.\n     Called only during a rerender, not during an initial render.\n     @method willUpdate\n     @public\n     @since 1.13.0\n     */\n    willUpdate() {},\n\n    /**\n     Called when the component is about to update and rerender itself.\n     Called only during a rerender, not during an initial render.\n     @event willUpdate\n     @public\n     @since 1.13.0\n     */\n\n    /**\n     Called when the component has updated and rerendered itself.\n     Called only during a rerender, not during an initial render.\n     @method didUpdate\n     @public\n     @since 1.13.0\n     */\n    didUpdate() {}\n\n  });\n\n  _exports.Component = Component;\n\n  Component.toString = () => '@ember/component';\n\n  Component.reopenClass({\n    isComponentFactory: true,\n    positionalParams: []\n  });\n  (0, _runtime.setFrameworkClass)(Component);\n  var layout = template({\n    \"id\": \"SWbqsLhV\",\n    \"block\": \"{\\\"symbols\\\":[],\\\"statements\\\":[],\\\"hasEval\\\":false,\\\"upvars\\\":[]}\",\n    \"meta\": {\n      \"moduleName\": \"packages/@ember/-internals/glimmer/lib/templates/empty.hbs\"\n    }\n  });\n  /**\n  @module @ember/component\n  */\n\n  /**\n    The internal class used to create text inputs when the `{{input}}`\n    helper is used with `type` of `checkbox`.\n  \n    See [Ember.Templates.helpers.input](/ember/release/classes/Ember.Templates.helpers/methods/input?anchor=input)  for usage details.\n  \n    ## Direct manipulation of `checked`\n  \n    The `checked` attribute of an `Checkbox` object should always be set\n    through the Ember object or by interacting with its rendered element\n    representation via the mouse, keyboard, or touch. Updating the value of the\n    checkbox via jQuery will result in the checked value of the object and its\n    element losing synchronization.\n  \n    ## Layout and LayoutName properties\n  \n    Because HTML `input` elements are self closing `layout` and `layoutName`\n    properties will not be applied.\n  \n    @class Checkbox\n    @extends Component\n    @public\n  */\n\n  var Checkbox = Component.extend({\n    layout,\n\n    /**\n      By default, this component will add the `ember-checkbox` class to the component's element.\n         @property classNames\n      @type Array | String\n      @default ['ember-checkbox']\n      @public\n     */\n    classNames: ['ember-checkbox'],\n    tagName: 'input',\n\n    /**\n      By default this component will forward a number of arguments to attributes on the the\n      component's element:\n         * indeterminate\n      * disabled\n      * tabindex\n      * name\n      * autofocus\n      * required\n      * form\n         When invoked with curly braces, this is the exhaustive list of HTML attributes you can\n      customize (i.e. `{{input type=\"checkbox\" disabled=true}}`).\n         When invoked with angle bracket invocation, this list is irrelevant, because you can use HTML\n      attribute syntax to customize the element (i.e.\n      `<Input @type=\"checkbox\" disabled data-custom=\"custom value\" />`). However, `@type` and\n      `@checked` must be passed as named arguments, not attributes.\n         @property attributeBindings\n      @type Array | String\n      @default ['type', 'checked', 'indeterminate', 'disabled', 'tabindex', 'name', 'autofocus', 'required', 'form']\n      @public\n    */\n    attributeBindings: ['type', 'checked', 'indeterminate', 'disabled', 'tabindex', 'name', 'autofocus', 'required', 'form'],\n\n    /**\n      Sets the `type` attribute of the `Checkbox`'s element\n         @property disabled\n      @default false\n      @private\n     */\n    type: 'checkbox',\n\n    /**\n      Sets the `disabled` attribute of the `Checkbox`'s element\n         @property disabled\n      @default false\n      @public\n     */\n    disabled: false,\n\n    /**\n      Corresponds to the `indeterminate` property of the `Checkbox`'s element\n         @property disabled\n      @default false\n      @public\n     */\n    indeterminate: false,\n\n    /**\n      Whenever the checkbox is inserted into the DOM, perform initialization steps, which include\n      setting the indeterminate property if needed.\n         If this method is overridden, `super` must be called.\n         @method\n      @public\n     */\n    didInsertElement() {\n      this._super(...arguments);\n\n      this.element.indeterminate = Boolean(this.indeterminate);\n    },\n\n    /**\n      Whenever the `change` event is fired on the checkbox, update its `checked` property to reflect\n      whether the checkbox is checked.\n         If this method is overridden, `super` must be called.\n         @method\n      @public\n     */\n    change() {\n      (0, _metal.set)(this, 'checked', this.element.checked);\n    }\n\n  });\n  _exports.Checkbox = Checkbox;\n\n  if (true\n  /* DEBUG */\n  ) {\n    var UNSET = {};\n    Checkbox.reopen({\n      value: UNSET,\n\n      didReceiveAttrs() {\n        this._super();\n\n        (true && !(!(this.type === 'checkbox' && this.value !== UNSET)) && (0, _debug.assert)(\"`<Input @type='checkbox' @value={{...}} />` is not supported; \" + \"please use `<Input @type='checkbox' @checked={{...}} />` instead.\", !(this.type === 'checkbox' && this.value !== UNSET)));\n      }\n\n    });\n  }\n\n  Checkbox.toString = () => '@ember/component/checkbox';\n  /**\n  @module @ember/component\n  */\n\n\n  var inputTypes = _browserEnvironment.hasDOM ? Object.create(null) : null;\n\n  function canSetTypeOfInput(type) {\n    // if running in outside of a browser always return\n    // the original type\n    if (!_browserEnvironment.hasDOM) {\n      return Boolean(type);\n    }\n\n    if (type in inputTypes) {\n      return inputTypes[type];\n    }\n\n    var inputTypeTestElement = document.createElement('input');\n\n    try {\n      inputTypeTestElement.type = type;\n    } catch (e) {// ignored\n    }\n\n    return inputTypes[type] = inputTypeTestElement.type === type;\n  }\n  /**\n    The internal class used to create text inputs when the `Input` component is used with `type` of `text`.\n  \n    See [Ember.Templates.components.Input](/ember/release/classes/Ember.Templates.components/methods/Input?anchor=Input) for usage details.\n  \n    ## Layout and LayoutName properties\n  \n    Because HTML `input` elements are self closing `layout` and `layoutName`\n    properties will not be applied.\n  \n    @class TextField\n    @extends Component\n    @uses Ember.TextSupport\n    @public\n  */\n\n\n  var TextField = Component.extend(_views.TextSupport, {\n    layout,\n\n    /**\n      By default, this component will add the `ember-text-field` class to the component's element.\n         @property classNames\n      @type Array | String\n      @default ['ember-text-field']\n      @public\n     */\n    classNames: ['ember-text-field'],\n    tagName: 'input',\n\n    /**\n      By default this component will forward a number of arguments to attributes on the the\n      component's element:\n         * accept\n      * autocomplete\n      * autosave\n      * dir\n      * formaction\n      * formenctype\n      * formmethod\n      * formnovalidate\n      * formtarget\n      * height\n      * inputmode\n      * lang\n      * list\n      * type\n      * max\n      * min\n      * multiple\n      * name\n      * pattern\n      * size\n      * step\n      * value\n      * width\n         When invoked with `{{input type=\"text\"}}`, you can only customize these attributes. When invoked\n      with `<Input @type=\"text\" />`, you can just use HTML attributes directly.\n         @property attributeBindings\n      @type Array | String\n      @default ['accept', 'autocomplete', 'autosave', 'dir', 'formaction', 'formenctype', 'formmethod', 'formnovalidate', 'formtarget', 'height', 'inputmode', 'lang', 'list', 'type', 'max', 'min', 'multiple', 'name', 'pattern', 'size', 'step', 'value', 'width']\n      @public\n    */\n    attributeBindings: ['accept', 'autocomplete', 'autosave', 'dir', 'formaction', 'formenctype', 'formmethod', 'formnovalidate', 'formtarget', 'height', 'inputmode', 'lang', 'list', 'type', 'max', 'min', 'multiple', 'name', 'pattern', 'size', 'step', 'value', 'width'],\n\n    /**\n      As the user inputs text, this property is updated to reflect the `value` property of the HTML\n      element.\n         @property value\n      @type String\n      @default \"\"\n      @public\n    */\n    value: '',\n\n    /**\n      The `type` attribute of the input element.\n         @property type\n      @type String\n      @default \"text\"\n      @public\n    */\n    type: (0, _metal.computed)({\n      get() {\n        return 'text';\n      },\n\n      set(_key, value) {\n        var type = 'text';\n\n        if (canSetTypeOfInput(value)) {\n          type = value;\n        }\n\n        return type;\n      }\n\n    }),\n\n    /**\n      The `size` of the text field in characters.\n         @property size\n      @type String\n      @default null\n      @public\n    */\n    size: null,\n\n    /**\n      The `pattern` attribute of input element.\n         @property pattern\n      @type String\n      @default null\n      @public\n    */\n    pattern: null,\n\n    /**\n      The `min` attribute of input element used with `type=\"number\"` or `type=\"range\"`.\n         @property min\n      @type String\n      @default null\n      @since 1.4.0\n      @public\n    */\n    min: null,\n\n    /**\n      The `max` attribute of input element used with `type=\"number\"` or `type=\"range\"`.\n         @property max\n      @type String\n      @default null\n      @since 1.4.0\n      @public\n    */\n    max: null\n  });\n  _exports.TextField = TextField;\n\n  TextField.toString = () => '@ember/component/text-field';\n  /**\n  @module @ember/component\n  */\n\n  /**\n    The `Textarea` component inserts a new instance of `<textarea>` tag into the template.\n  \n    The `@value` argument provides the content of the `<textarea>`.\n  \n    This template:\n  \n    ```handlebars\n    <Textarea @value=\"A bunch of text\" />\n    ```\n  \n    Would result in the following HTML:\n  \n    ```html\n    <textarea class=\"ember-text-area\">\n      A bunch of text\n    </textarea>\n    ```\n  \n    The `@value` argument is two-way bound. If the user types text into the textarea, the `@value`\n    argument is updated. If the `@value` argument is updated, the text in the textarea is updated.\n  \n    In the following example, the `writtenWords` property on the component will be updated as the user\n    types 'Lots of text' into the text area of their browser's window.\n  \n    ```app/components/word-editor.js\n    import Component from '@glimmer/component';\n    import { tracked } from '@glimmer/tracking';\n  \n    export default class WordEditorComponent extends Component {\n      @tracked writtenWords = \"Lots of text that IS bound\";\n    }\n    ```\n  \n    ```handlebars\n    <Textarea @value={{writtenWords}} />\n    ```\n  \n    Would result in the following HTML:\n  \n    ```html\n    <textarea class=\"ember-text-area\">\n      Lots of text that IS bound\n    </textarea>\n    ```\n  \n    If you wanted a one way binding, you could use the `<textarea>` element directly, and use the\n    `value` DOM property and the `input` event.\n  \n    ### Actions\n  \n    The `Textarea` component takes a number of arguments with callbacks that are invoked in\n    response to user events.\n  \n    * `enter`\n    * `insert-newline`\n    * `escape-press`\n    * `focus-in`\n    * `focus-out`\n    * `key-press`\n  \n    These callbacks are passed to `Textarea` like this:\n  \n    ```handlebars\n    <Textarea @value={{this.searchWord}} @enter={{this.query}} />\n    ```\n  \n    ## Classic Invocation Syntax\n  \n    The `Textarea` component can also be invoked using curly braces, just like any other Ember\n    component.\n  \n    For example, this is an invocation using angle-bracket notation:\n  \n    ```handlebars\n    <Textarea @value={{this.searchWord}} @enter={{this.query}} />\n    ```\n  \n    You could accomplish the same thing using classic invocation:\n  \n    ```handlebars\n    {{textarea value=this.searchWord enter=this.query}}\n    ```\n  \n    The main difference is that angle-bracket invocation supports any HTML attribute using HTML\n    attribute syntax, because attributes and arguments have different syntax when using angle-bracket\n    invocation. Curly brace invocation, on the other hand, only has a single syntax for arguments,\n    and components must manually map attributes onto component arguments.\n  \n    When using classic invocation with `{{textarea}}`, only the following attributes are mapped onto\n    arguments:\n  \n    * rows\n    * cols\n    * name\n    * selectionEnd\n    * selectionStart\n    * autocomplete\n    * wrap\n    * lang\n    * dir\n    * value\n  \n    ## Classic `layout` and `layoutName` properties\n  \n    Because HTML `textarea` elements do not contain inner HTML the `layout` and\n    `layoutName` properties will not be applied.\n  \n    @method Textarea\n    @for Ember.Templates.components\n    @see {TextArea}\n    @public\n  */\n\n  /**\n    See Ember.Templates.components.Textarea.\n  \n    @method textarea\n    @for Ember.Templates.helpers\n    @see {Ember.Templates.components.textarea}\n    @public\n  */\n\n  /**\n    The internal representation used for `Textarea` invocations.\n  \n    @class TextArea\n    @extends Component\n    @see {Ember.Templates.components.Textarea}\n    @uses Ember.TextSupport\n    @public\n  */\n\n\n  var TextArea = Component.extend(_views.TextSupport, {\n    classNames: ['ember-text-area'],\n    layout,\n    tagName: 'textarea',\n    attributeBindings: ['rows', 'cols', 'name', 'selectionEnd', 'selectionStart', 'autocomplete', 'wrap', 'lang', 'dir', 'value'],\n    rows: null,\n    cols: null\n  });\n  _exports.TextArea = TextArea;\n\n  TextArea.toString = () => '@ember/component/text-area';\n\n  var layout$1 = template({\n    \"id\": \"uDKxl8ne\",\n    \"block\": \"{\\\"symbols\\\":[\\\"&default\\\"],\\\"statements\\\":[[6,[37,0],[[27,[32,1]]],null,[[\\\"default\\\",\\\"else\\\"],[{\\\"statements\\\":[[18,1,null]],\\\"parameters\\\":[]},{\\\"statements\\\":[[1,[32,0,[\\\"linkTitle\\\"]]]],\\\"parameters\\\":[]}]]]],\\\"hasEval\\\":false,\\\"upvars\\\":[\\\"if\\\"]}\",\n    \"meta\": {\n      \"moduleName\": \"packages/@ember/-internals/glimmer/lib/templates/link-to.hbs\"\n    }\n  });\n  /**\n  @module ember\n  */\n\n  /**\n    The `LinkTo` component renders a link to the supplied `routeName` passing an optionally\n    supplied model to the route as its `model` context of the route. The block for `LinkTo`\n    becomes the contents of the rendered element:\n  \n    ```handlebars\n    <LinkTo @route='photoGallery'>\n      Great Hamster Photos\n    </LinkTo>\n    ```\n  \n    This will result in:\n  \n    ```html\n    <a href=\"/hamster-photos\">\n      Great Hamster Photos\n    </a>\n    ```\n  \n    ### Disabling the `LinkTo` component\n  \n    The `LinkTo` component can be disabled by using the `disabled` argument. A disabled link\n    doesn't result in a transition when activated, and adds the `disabled` class to the `<a>`\n    element.\n  \n    (The class name to apply to the element can be overridden by using the `disabledClass`\n    argument)\n  \n    ```handlebars\n    <LinkTo @route='photoGallery' @disabled={{true}}>\n      Great Hamster Photos\n    </LinkTo>\n    ```\n  \n    ### Handling `href`\n  \n    `<LinkTo>` will use your application's Router to fill the element's `href` property with a URL\n    that matches the path to the supplied `routeName`.\n  \n    ### Handling current route\n  \n    The `LinkTo` component will apply a CSS class name of 'active' when the application's current\n    route matches the supplied routeName. For example, if the application's current route is\n    'photoGallery.recent', then the following invocation of `LinkTo`:\n  \n    ```handlebars\n    <LinkTo @route='photoGallery.recent'>\n      Great Hamster Photos\n    </LinkTo>\n    ```\n  \n    will result in\n  \n    ```html\n    <a href=\"/hamster-photos/this-week\" class=\"active\">\n      Great Hamster Photos\n    </a>\n    ```\n  \n    The CSS class used for active classes can be customized by passing an `activeClass` argument:\n  \n    ```handlebars\n    <LinkTo @route='photoGallery.recent' @activeClass=\"current-url\">\n      Great Hamster Photos\n    </LinkTo>\n    ```\n  \n    ```html\n    <a href=\"/hamster-photos/this-week\" class=\"current-url\">\n      Great Hamster Photos\n    </a>\n    ```\n  \n    ### Keeping a link active for other routes\n  \n    If you need a link to be 'active' even when it doesn't match the current route, you can use the\n    `current-when` argument.\n  \n    ```handlebars\n    <LinkTo @route='photoGallery' @current-when='photos'>\n      Photo Gallery\n    </LinkTo>\n    ```\n  \n    This may be helpful for keeping links active for:\n  \n    * non-nested routes that are logically related\n    * some secondary menu approaches\n    * 'top navigation' with 'sub navigation' scenarios\n  \n    A link will be active if `current-when` is `true` or the current\n    route is the route this link would transition to.\n  \n    To match multiple routes 'space-separate' the routes:\n  \n    ```handlebars\n    <LinkTo @route='gallery' @current-when='photos drawings paintings'>\n      Art Gallery\n    </LinkTo>\n    ```\n  \n    ### Supplying a model\n  \n    An optional `model` argument can be used for routes whose\n    paths contain dynamic segments. This argument will become\n    the model context of the linked route:\n  \n    ```javascript\n    Router.map(function() {\n      this.route(\"photoGallery\", {path: \"hamster-photos/:photo_id\"});\n    });\n    ```\n  \n    ```handlebars\n    <LinkTo @route='photoGallery' @model={{this.aPhoto}}>\n      {{aPhoto.title}}\n    </LinkTo>\n    ```\n  \n    ```html\n    <a href=\"/hamster-photos/42\">\n      Tomster\n    </a>\n    ```\n  \n    ### Supplying multiple models\n  \n    For deep-linking to route paths that contain multiple\n    dynamic segments, the `models` argument can be used.\n  \n    As the router transitions through the route path, each\n    supplied model argument will become the context for the\n    route with the dynamic segments:\n  \n    ```javascript\n    Router.map(function() {\n      this.route(\"photoGallery\", { path: \"hamster-photos/:photo_id\" }, function() {\n        this.route(\"comment\", {path: \"comments/:comment_id\"});\n      });\n    });\n    ```\n  \n    This argument will become the model context of the linked route:\n  \n    ```handlebars\n    <LinkTo @route='photoGallery.comment' @models={{array this.aPhoto this.comment}}>\n      {{comment.body}}\n    </LinkTo>\n    ```\n  \n    ```html\n    <a href=\"/hamster-photos/42/comments/718\">\n      A+++ would snuggle again.\n    </a>\n    ```\n  \n    ### Supplying an explicit dynamic segment value\n  \n    If you don't have a model object available to pass to `LinkTo`,\n    an optional string or integer argument can be passed for routes whose\n    paths contain dynamic segments. This argument will become the value\n    of the dynamic segment:\n  \n    ```javascript\n    Router.map(function() {\n      this.route(\"photoGallery\", { path: \"hamster-photos/:photo_id\" });\n    });\n    ```\n  \n    ```handlebars\n    <LinkTo @route='photoGallery' @model={{aPhotoId}}>\n      {{this.aPhoto.title}}\n    </LinkTo>\n    ```\n  \n    ```html\n    <a href=\"/hamster-photos/42\">\n      Tomster\n    </a>\n    ```\n  \n    When transitioning into the linked route, the `model` hook will\n    be triggered with parameters including this passed identifier.\n  \n    ### Allowing Default Action\n  \n    By default the `<LinkTo>` component prevents the default browser action by calling\n    `preventDefault()` to avoid reloading the browser page.\n  \n    If you need to trigger a full browser reload pass `@preventDefault={{false}}`:\n  \n    ```handlebars\n    <LinkTo @route='photoGallery' @model={{this.aPhotoId}} @preventDefault={{false}}>\n      {{this.aPhotoId.title}}\n    </LinkTo>\n    ```\n  \n    ### Supplying a `tagName`\n  \n    By default `<LinkTo>` renders an `<a>` element. This can be overridden for a single use of\n    `<LinkTo>` by supplying a `tagName` argument:\n  \n    ```handlebars\n    <LinkTo @route='photoGallery' @tagName='li'>\n      Great Hamster Photos\n    </LinkTo>\n    ```\n  \n    This produces:\n  \n    ```html\n    <li>\n      Great Hamster Photos\n    </li>\n    ```\n  \n    In general, this is not recommended. Instead, you can use the `transition-to` helper together\n    with a click event handler on the HTML tag of your choosing.\n  \n    @for Ember.Templates.components\n    @method LinkTo\n    @see {LinkComponent}\n    @public\n  */\n\n  /**\n    @module @ember/routing\n  */\n\n  /**\n    See [Ember.Templates.components.LinkTo](/ember/release/classes/Ember.Templates.components/methods/input?anchor=LinkTo).\n  \n    @for Ember.Templates.helpers\n    @method link-to\n    @see {Ember.Templates.components.LinkTo}\n    @public\n  **/\n\n  /**\n    `LinkComponent` is the internal component invoked with `<LinkTo>` or `{{link-to}}`.\n  \n    @class LinkComponent\n    @extends Component\n    @see {Ember.Templates.components.LinkTo}\n    @public\n  **/\n\n  var UNDEFINED = Object.freeze({\n    toString() {\n      return 'UNDEFINED';\n    }\n\n  });\n  var EMPTY_QUERY_PARAMS = Object.freeze({});\n  var LinkComponent = Component.extend({\n    layout: layout$1,\n    tagName: 'a',\n\n    /**\n      @property route\n      @public\n    */\n    route: UNDEFINED,\n\n    /**\n      @property model\n      @public\n    */\n    model: UNDEFINED,\n\n    /**\n      @property models\n      @public\n    */\n    models: UNDEFINED,\n\n    /**\n      @property query\n      @public\n    */\n    query: UNDEFINED,\n\n    /**\n      Used to determine when this `LinkComponent` is active.\n         @property current-when\n      @public\n    */\n    'current-when': null,\n\n    /**\n      Sets the `title` attribute of the `LinkComponent`'s HTML element.\n         @property title\n      @default null\n      @public\n    **/\n    title: null,\n\n    /**\n      Sets the `rel` attribute of the `LinkComponent`'s HTML element.\n         @property rel\n      @default null\n      @public\n    **/\n    rel: null,\n\n    /**\n      Sets the `tabindex` attribute of the `LinkComponent`'s HTML element.\n         @property tabindex\n      @default null\n      @public\n    **/\n    tabindex: null,\n\n    /**\n      Sets the `target` attribute of the `LinkComponent`'s HTML element.\n         @since 1.8.0\n      @property target\n      @default null\n      @public\n    **/\n    target: null,\n\n    /**\n      The CSS class to apply to `LinkComponent`'s element when its `active`\n      property is `true`.\n         @property activeClass\n      @type String\n      @default active\n      @public\n    **/\n    activeClass: 'active',\n\n    /**\n      The CSS class to apply to `LinkComponent`'s element when its `loading`\n      property is `true`.\n         @property loadingClass\n      @type String\n      @default loading\n      @private\n    **/\n    loadingClass: 'loading',\n\n    /**\n      The CSS class to apply to a `LinkComponent`'s element when its `disabled`\n      property is `true`.\n         @property disabledClass\n      @type String\n      @default disabled\n      @private\n    **/\n    disabledClass: 'disabled',\n\n    /**\n      Determines whether the `LinkComponent` will trigger routing via\n      the `replaceWith` routing strategy.\n         @property replace\n      @type Boolean\n      @default false\n      @public\n    **/\n    replace: false,\n\n    /**\n      By default this component will forward `href`, `title`, `rel`, `tabindex`, and `target`\n      arguments to attributes on the component's element. When invoked with `{{link-to}}`, you can\n      only customize these attributes. When invoked with `<LinkTo>`, you can just use HTML\n      attributes directly.\n         @property attributeBindings\n      @type Array | String\n      @default ['title', 'rel', 'tabindex', 'target']\n      @public\n    */\n    attributeBindings: ['href', 'title', 'rel', 'tabindex', 'target'],\n\n    /**\n      By default this component will set classes on its element when any of the following arguments\n      are truthy:\n         * active\n      * loading\n      * disabled\n         When these arguments are truthy, a class with the same name will be set on the element. When\n      falsy, the associated class will not be on the element.\n         @property classNameBindings\n      @type Array\n      @default ['active', 'loading', 'disabled', 'ember-transitioning-in', 'ember-transitioning-out']\n      @public\n    */\n    classNameBindings: ['active', 'loading', 'disabled', 'transitioningIn', 'transitioningOut'],\n\n    /**\n      By default this component responds to the `click` event. When the component element is an\n      `<a>` element, activating the link in another way, such as using the keyboard, triggers the\n      click event.\n         @property eventName\n      @type String\n      @default click\n      @private\n    */\n    eventName: 'click',\n\n    // this is doc'ed here so it shows up in the events\n    // section of the API documentation, which is where\n    // people will likely go looking for it.\n\n    /**\n      Triggers the `LinkComponent`'s routing behavior. If\n      `eventName` is changed to a value other than `click`\n      the routing behavior will trigger on that custom event\n      instead.\n         @event click\n      @private\n    */\n\n    /**\n      An overridable method called when `LinkComponent` objects are instantiated.\n         Example:\n         ```app/components/my-link.js\n      import LinkComponent from '@ember/routing/link-component';\n         export default LinkComponent.extend({\n        init() {\n          this._super(...arguments);\n          console.log('Event is ' + this.get('eventName'));\n        }\n      });\n      ```\n         NOTE: If you do override `init` for a framework class like `Component`,\n      be sure to call `this._super(...arguments)` in your\n      `init` declaration! If you don't, Ember may not have an opportunity to\n      do important setup work, and you'll see strange behavior in your\n      application.\n         @method init\n      @private\n    */\n    init() {\n      this._super(...arguments); // Map desired event name to invoke function\n\n\n      var {\n        eventName\n      } = this;\n      this.on(eventName, this, this._invoke);\n    },\n\n    _routing: (0, _service.inject)('-routing'),\n    _currentRoute: (0, _metal.alias)('_routing.currentRouteName'),\n    _currentRouterState: (0, _metal.alias)('_routing.currentState'),\n    _targetRouterState: (0, _metal.alias)('_routing.targetState'),\n    _route: (0, _metal.computed)('route', '_currentRouterState', function computeLinkToComponentRoute() {\n      var {\n        route\n      } = this;\n      return route === UNDEFINED ? this._currentRoute : route;\n    }),\n    _models: (0, _metal.computed)('model', 'models', function computeLinkToComponentModels() {\n      var {\n        model,\n        models\n      } = this;\n      (true && !(model === UNDEFINED || models === UNDEFINED) && (0, _debug.assert)('You cannot provide both the `@model` and `@models` arguments to the <LinkTo> component.', model === UNDEFINED || models === UNDEFINED));\n\n      if (model !== UNDEFINED) {\n        return [model];\n      } else if (models !== UNDEFINED) {\n        (true && !(Array.isArray(models)) && (0, _debug.assert)('The `@models` argument must be an array.', Array.isArray(models)));\n        return models;\n      } else {\n        return [];\n      }\n    }),\n    _query: (0, _metal.computed)('query', function computeLinkToComponentQuery() {\n      var {\n        query\n      } = this;\n\n      if (query === UNDEFINED) {\n        return EMPTY_QUERY_PARAMS;\n      } else {\n        return (0, _polyfills.assign)({}, query);\n      }\n    }),\n\n    /**\n      Accessed as a classname binding to apply the component's `disabledClass`\n      CSS `class` to the element when the link is disabled.\n         When `true`, interactions with the element will not trigger route changes.\n      @property disabled\n      @private\n    */\n    disabled: (0, _metal.computed)({\n      get(_key) {\n        // always returns false for `get` because (due to the `set` just below)\n        // the cached return value from the set will prevent this getter from _ever_\n        // being called after a set has occurred\n        return false;\n      },\n\n      set(_key, value) {\n        this._isDisabled = value;\n        return value ? this.disabledClass : false;\n      }\n\n    }),\n\n    /**\n      Accessed as a classname binding to apply the component's `activeClass`\n      CSS `class` to the element when the link is active.\n         This component is considered active when its `currentWhen` property is `true`\n      or the application's current route is the route this component would trigger\n      transitions into.\n         The `currentWhen` property can match against multiple routes by separating\n      route names using the ` ` (space) character.\n         @property active\n      @private\n    */\n    active: (0, _metal.computed)('activeClass', '_active', function computeLinkToComponentActiveClass() {\n      return this._active ? this.activeClass : false;\n    }),\n    _active: (0, _metal.computed)('_currentRouterState', '_route', '_models', '_query', 'loading', 'current-when', function computeLinkToComponentActive() {\n      var {\n        _currentRouterState: state\n      } = this;\n\n      if (state) {\n        return this._isActive(state);\n      } else {\n        return false;\n      }\n    }),\n    willBeActive: (0, _metal.computed)('_currentRouterState', '_targetRouterState', '_route', '_models', '_query', 'loading', 'current-when', function computeLinkToComponentWillBeActive() {\n      var {\n        _currentRouterState: current,\n        _targetRouterState: target\n      } = this;\n\n      if (current === target) {\n        return;\n      }\n\n      return this._isActive(target);\n    }),\n\n    _isActive(routerState) {\n      if (this.loading) {\n        return false;\n      }\n\n      var currentWhen = this['current-when'];\n\n      if (typeof currentWhen === 'boolean') {\n        return currentWhen;\n      }\n\n      var isCurrentWhenSpecified = Boolean(currentWhen);\n\n      if (isCurrentWhenSpecified) {\n        currentWhen = currentWhen.split(' ');\n      } else {\n        currentWhen = [this._route];\n      }\n\n      var {\n        _models: models,\n        _query: query,\n        _routing: routing\n      } = this;\n\n      for (var i = 0; i < currentWhen.length; i++) {\n        if (routing.isActiveForRoute(models, query, currentWhen[i], routerState, isCurrentWhenSpecified)) {\n          return true;\n        }\n      }\n\n      return false;\n    },\n\n    transitioningIn: (0, _metal.computed)('_active', 'willBeActive', function computeLinkToComponentTransitioningIn() {\n      if (this.willBeActive === true && !this._active) {\n        return 'ember-transitioning-in';\n      } else {\n        return false;\n      }\n    }),\n    transitioningOut: (0, _metal.computed)('_active', 'willBeActive', function computeLinkToComponentTransitioningOut() {\n      if (this.willBeActive === false && this._active) {\n        return 'ember-transitioning-out';\n      } else {\n        return false;\n      }\n    }),\n\n    /**\n      Event handler that invokes the link, activating the associated route.\n         @method _invoke\n      @param {Event} event\n      @private\n    */\n    _invoke(event) {\n      if (!(0, _views.isSimpleClick)(event)) {\n        return true;\n      }\n\n      var {\n        bubbles,\n        preventDefault\n      } = this;\n      var target = this.element.target;\n      var isSelf = !target || target === '_self';\n\n      if (preventDefault !== false && isSelf) {\n        event.preventDefault();\n      }\n\n      if (bubbles === false) {\n        event.stopPropagation();\n      }\n\n      if (this._isDisabled) {\n        return false;\n      }\n\n      if (this.loading) {\n        // tslint:disable-next-line:max-line-length\n        (true && (0, _debug.warn)('This link is in an inactive loading state because at least one of its models ' + 'currently has a null/undefined value, or the provided route name is invalid.', false, {\n          id: 'ember-glimmer.link-to.inactive-loading-state'\n        }));\n        return false;\n      }\n\n      if (!isSelf) {\n        return false;\n      }\n\n      var {\n        _route: routeName,\n        _models: models,\n        _query: queryParams,\n        replace: shouldReplace\n      } = this;\n      var payload = {\n        queryParams,\n        routeName\n      };\n      (0, _instrumentation.flaggedInstrument)('interaction.link-to', payload, this._generateTransition(payload, routeName, models, queryParams, shouldReplace));\n      return false;\n    },\n\n    _generateTransition(payload, qualifiedRouteName, models, queryParams, shouldReplace) {\n      var {\n        _routing: routing\n      } = this;\n      return () => {\n        payload.transition = routing.transitionTo(qualifiedRouteName, models, queryParams, shouldReplace);\n      };\n    },\n\n    /**\n      Sets the element's `href` attribute to the url for\n      the `LinkComponent`'s targeted route.\n         If the `LinkComponent`'s `tagName` is changed to a value other\n      than `a`, this property will be ignored.\n         @property href\n      @private\n    */\n    href: (0, _metal.computed)('_currentRouterState', '_route', '_models', '_query', 'tagName', 'loading', 'loadingHref', function computeLinkToComponentHref() {\n      if (this.tagName !== 'a') {\n        return;\n      }\n\n      if (this.loading) {\n        return this.loadingHref;\n      }\n\n      var {\n        _route: route,\n        _models: models,\n        _query: query,\n        _routing: routing\n      } = this;\n\n      if (true\n      /* DEBUG */\n      ) {\n        /*\n         * Unfortunately, to get decent error messages, we need to do this.\n         * In some future state we should be able to use a \"feature flag\"\n         * which allows us to strip this without needing to call it twice.\n         *\n         * if (isDebugBuild()) {\n         *   // Do the useful debug thing, probably including try/catch.\n         * } else {\n         *   // Do the performant thing.\n         * }\n         */\n        try {\n          return routing.generateURL(route, models, query);\n        } catch (e) {\n          // tslint:disable-next-line:max-line-length\n          (true && !(false) && (0, _debug.assert)(`You attempted to generate a link for the \"${this.route}\" route, but did not ` + `pass the models required for generating its dynamic segments. ` + e.message));\n        }\n      } else {\n        return routing.generateURL(route, models, query);\n      }\n    }),\n    loading: (0, _metal.computed)('_route', '_modelsAreLoaded', 'loadingClass', function computeLinkToComponentLoading() {\n      var {\n        _route: route,\n        _modelsAreLoaded: loaded\n      } = this;\n\n      if (!loaded || route === null || route === undefined) {\n        return this.loadingClass;\n      }\n    }),\n    _modelsAreLoaded: (0, _metal.computed)('_models', function computeLinkToComponentModelsAreLoaded() {\n      var {\n        _models: models\n      } = this;\n\n      for (var i = 0; i < models.length; i++) {\n        var model = models[i];\n\n        if (model === null || model === undefined) {\n          return false;\n        }\n      }\n\n      return true;\n    }),\n\n    /**\n      The default href value to use while a link-to is loading.\n      Only applies when tagName is 'a'\n         @property loadingHref\n      @type String\n      @default #\n      @private\n    */\n    loadingHref: '#',\n\n    didReceiveAttrs() {\n      var {\n        disabledWhen\n      } = this;\n\n      if (disabledWhen !== undefined) {\n        this.set('disabled', disabledWhen);\n      }\n\n      var {\n        params\n      } = this;\n\n      if (!params || params.length === 0) {\n        (true && !(!(this.route === UNDEFINED && this.model === UNDEFINED && this.models === UNDEFINED && this.query === UNDEFINED)) && (0, _debug.assert)('You must provide at least one of the `@route`, `@model`, `@models` or `@query` argument to `<LinkTo>`.', !(this.route === UNDEFINED && this.model === UNDEFINED && this.models === UNDEFINED && this.query === UNDEFINED)));\n        var {\n          _models: models\n        } = this;\n\n        if (models.length > 0) {\n          var lastModel = models[models.length - 1];\n\n          if (typeof lastModel === 'object' && lastModel !== null && lastModel.isQueryParams) {\n            this.query = lastModel.values;\n            models.pop();\n          }\n        }\n\n        return;\n      }\n\n      params = params.slice(); // Process the positional arguments, in order.\n      // 1. Inline link title comes first, if present.\n\n      if (!this[HAS_BLOCK]) {\n        this.set('linkTitle', params.shift());\n      } // 2. The last argument is possibly the `query` object.\n\n\n      var queryParams = params[params.length - 1];\n\n      if (queryParams && queryParams.isQueryParams) {\n        this.set('query', params.pop().values);\n      } else {\n        this.set('query', UNDEFINED);\n      } // 3. If there is a `route`, it is now at index 0.\n\n\n      if (params.length === 0) {\n        this.set('route', UNDEFINED);\n      } else {\n        this.set('route', params.shift());\n      } // 4. Any remaining indices (if any) are `models`.\n\n\n      this.set('model', UNDEFINED);\n      this.set('models', params);\n    }\n\n  });\n  _exports.LinkComponent = LinkComponent;\n\n  LinkComponent.toString = () => '@ember/routing/link-component';\n\n  LinkComponent.reopenClass({\n    positionalParams: 'params'\n  });\n  /**\n  @module @ember/component\n  */\n\n  var RECOMPUTE_TAG = (0, _utils.symbol)('RECOMPUTE_TAG');\n\n  function isHelperFactory(helper) {\n    return typeof helper === 'object' && helper !== null && helper.class && helper.class.isHelperFactory;\n  }\n\n  function isClassHelper(helper) {\n    return helper.destroy !== undefined;\n  }\n  /**\n    Ember Helpers are functions that can compute values, and are used in templates.\n    For example, this code calls a helper named `format-currency`:\n  \n    ```app/templates/application.hbs\n    <Cost @cents={{230}} />\n    ```\n  \n    ```app/components/cost.hbs\n    <div>{{format-currency @cents currency=\"$\"}}</div>\n    ```\n  \n    Additionally a helper can be called as a nested helper.\n    In this example, we show the formatted currency value if the `showMoney`\n    named argument is truthy.\n  \n    ```handlebars\n    {{if @showMoney (format-currency @cents currency=\"$\")}}\n    ```\n  \n    Helpers defined using a class must provide a `compute` function. For example:\n  \n    ```app/helpers/format-currency.js\n    import Helper from '@ember/component/helper';\n  \n    export default class extends Helper {\n      compute([cents], { currency }) {\n        return `${currency}${cents * 0.01}`;\n      }\n    }\n    ```\n  \n    Each time the input to a helper changes, the `compute` function will be\n    called again.\n  \n    As instances, these helpers also have access to the container and will accept\n    injected dependencies.\n  \n    Additionally, class helpers can call `recompute` to force a new computation.\n  \n    @class Helper\n    @public\n    @since 1.13.0\n  */\n\n\n  var Helper = _runtime.FrameworkObject.extend({\n    init() {\n      this._super(...arguments);\n\n      this[RECOMPUTE_TAG] = (0, _validator.createTag)();\n    },\n\n    /**\n      On a class-based helper, it may be useful to force a recomputation of that\n      helpers value. This is akin to `rerender` on a component.\n         For example, this component will rerender when the `currentUser` on a\n      session service changes:\n         ```app/helpers/current-user-email.js\n      import Helper from '@ember/component/helper'\n      import { inject as service } from '@ember/service'\n      import { observer } from '@ember/object'\n         export default Helper.extend({\n        session: service(),\n           onNewUser: observer('session.currentUser', function() {\n          this.recompute();\n        }),\n           compute() {\n          return this.get('session.currentUser.email');\n        }\n      });\n      ```\n         @method recompute\n      @public\n      @since 1.13.0\n    */\n    recompute() {\n      (0, _runloop.join)(() => (0, _validator.dirtyTag)(this[RECOMPUTE_TAG]));\n    }\n\n  });\n\n  _exports.Helper = Helper;\n  Helper.isHelperFactory = true;\n  (0, _runtime.setFrameworkClass)(Helper);\n\n  class Wrapper {\n    constructor(compute) {\n      this.compute = compute;\n      this.isHelperFactory = true;\n    }\n\n    create() {\n      // needs new instance or will leak containers\n      return {\n        compute: this.compute\n      };\n    }\n\n  }\n  /**\n    In many cases it is not necessary to use the full `Helper` class.\n    The `helper` method create pure-function helpers without instances.\n    For example:\n  \n    ```app/helpers/format-currency.js\n    import { helper } from '@ember/component/helper';\n  \n    export default helper(function([cents], {currency}) {\n      return `${currency}${cents * 0.01}`;\n    });\n    ```\n  \n    @static\n    @param {Function} helper The helper function\n    @method helper\n    @for @ember/component/helper\n    @public\n    @since 1.13.0\n  */\n\n\n  function helper(helperFn) {\n    return new Wrapper(helperFn);\n  }\n  /**\n  @module @ember/template\n  */\n\n\n  class SafeString {\n    constructor(string) {\n      this.string = string;\n    }\n\n    toString() {\n      return `${this.string}`;\n    }\n\n    toHTML() {\n      return this.toString();\n    }\n\n  }\n\n  _exports.SafeString = SafeString;\n  var escape = {\n    '&': '&amp;',\n    '<': '&lt;',\n    '>': '&gt;',\n    '\"': '&quot;',\n    \"'\": '&#x27;',\n    '`': '&#x60;',\n    '=': '&#x3D;'\n  };\n  var possible = /[&<>\"'`=]/;\n  var badChars = /[&<>\"'`=]/g;\n\n  function escapeChar(chr) {\n    return escape[chr];\n  }\n\n  function escapeExpression(string) {\n    if (typeof string !== 'string') {\n      // don't escape SafeStrings, since they're already safe\n      if (string && string.toHTML) {\n        return string.toHTML();\n      } else if (string === null || string === undefined) {\n        return '';\n      } else if (!string) {\n        return String(string);\n      } // Force a string conversion as this will be done by the append regardless and\n      // the regex test will do this transparently behind the scenes, causing issues if\n      // an object's to string has escaped characters in it.\n\n\n      string = String(string);\n    }\n\n    if (!possible.test(string)) {\n      return string;\n    }\n\n    return string.replace(badChars, escapeChar);\n  }\n  /**\n    Mark a string as safe for unescaped output with Ember templates. If you\n    return HTML from a helper, use this function to\n    ensure Ember's rendering layer does not escape the HTML.\n  \n    ```javascript\n    import { htmlSafe } from '@ember/template';\n  \n    htmlSafe('<div>someString</div>')\n    ```\n  \n    @method htmlSafe\n    @for @ember/template\n    @static\n    @return {SafeString} A string that will not be HTML escaped by Handlebars.\n    @public\n  */\n\n\n  function htmlSafe(str) {\n    if (str === null || str === undefined) {\n      str = '';\n    } else if (typeof str !== 'string') {\n      str = String(str);\n    }\n\n    return new SafeString(str);\n  }\n  /**\n    Detects if a string was decorated using `htmlSafe`.\n  \n    ```javascript\n    import { htmlSafe, isHTMLSafe } from '@ember/template';\n  \n    var plainString = 'plain string',\n        safeString = htmlSafe('<div>someValue</div>');\n  \n    isHTMLSafe(plainString); // false\n    isHTMLSafe(safeString);  // true\n    ```\n  \n    @method isHTMLSafe\n    @for @ember/template\n    @static\n    @return {Boolean} `true` if the string was decorated with `htmlSafe`, `false` otherwise.\n    @public\n  */\n\n\n  function isHTMLSafe(str) {\n    return str !== null && typeof str === 'object' && typeof str.toHTML === 'function';\n  }\n\n  function isStaticComponentManager(_manager, capabilities) {\n    return !capabilities.dynamicLayout;\n  }\n\n  class CompileTimeResolver {\n    constructor(resolver) {\n      this.resolver = resolver;\n    }\n\n    lookupHelper(name, referrer) {\n      return this.resolver.lookupHelper(name, referrer);\n    }\n\n    lookupModifier(name, referrer) {\n      return this.resolver.lookupModifier(name, referrer);\n    }\n\n    lookupComponent(name, referrer) {\n      var definitionHandle = this.resolver.lookupComponentHandle(name, referrer);\n\n      if (definitionHandle === null) {\n        return null;\n      }\n\n      var {\n        manager,\n        state\n      } = this.resolver.resolve(definitionHandle);\n      var capabilities = manager.getCapabilities(state);\n\n      if (!isStaticComponentManager(manager, capabilities)) {\n        return {\n          handle: definitionHandle,\n          capabilities,\n          compilable: null\n        };\n      }\n\n      return {\n        handle: definitionHandle,\n        capabilities,\n        compilable: manager.getJitStaticLayout(state, this.resolver)\n      };\n    }\n\n    lookupPartial(name, referrer) {\n      return this.resolver.lookupPartial(name, referrer);\n    }\n\n    resolve(handle) {\n      return this.resolver.resolve(handle);\n    }\n\n  } // implements the ComponentManager interface as defined in glimmer:\n  // tslint:disable-next-line:max-line-length\n  // https://github.com/glimmerjs/glimmer-vm/blob/v0.24.0-beta.4/packages/%40glimmer/runtime/lib/component/interfaces.ts#L21\n\n\n  class AbstractManager {\n    prepareArgs(_state, _args) {\n      return null;\n    }\n\n    didCreateElement(_component, _element, _operations) {// noop\n    }\n\n    didRenderLayout(_component, _bounds) {// noop\n    }\n\n    didCreate(_bucket) {// noop\n    }\n\n    update(_bucket, _dynamicScope) {// noop\n    }\n\n    didUpdateLayout(_bucket, _bounds) {// noop\n    }\n\n    didUpdate(_bucket) {// noop\n    }\n\n  }\n\n  _exports.AbstractComponentManager = AbstractManager;\n\n  function instrumentationPayload(def) {\n    return {\n      object: `${def.name}:${def.outlet}`\n    };\n  }\n\n  var CAPABILITIES = {\n    dynamicLayout: false,\n    dynamicTag: false,\n    prepareArgs: false,\n    createArgs: _environment2.ENV._DEBUG_RENDER_TREE,\n    attributeHook: false,\n    elementHook: false,\n    createCaller: false,\n    dynamicScope: true,\n    updateHook: _environment2.ENV._DEBUG_RENDER_TREE,\n    createInstance: true,\n    wrapped: false,\n    willDestroy: false\n  };\n\n  class OutletComponentManager extends AbstractManager {\n    create(environment, definition, args, dynamicScope) {\n      var parentStateRef = dynamicScope.outletState;\n      var currentStateRef = definition.ref;\n      dynamicScope.outletState = currentStateRef;\n      var state = {\n        self: new _reference.ComponentRootReference(definition.controller, environment),\n        environment,\n        finalize: (0, _instrumentation._instrumentStart)('render.outlet', instrumentationPayload, definition)\n      };\n\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        state.outlet = {\n          name: definition.outlet\n        };\n        environment.extra.debugRenderTree.create(state.outlet, {\n          type: 'outlet',\n          name: state.outlet.name,\n          args: _runtime2.EMPTY_ARGS,\n          instance: undefined,\n          template: undefined\n        });\n        var parentState = parentStateRef.value();\n        var parentOwner = parentState && parentState.render && parentState.render.owner;\n        var currentOwner = currentStateRef.value().render.owner;\n\n        if (parentOwner && parentOwner !== currentOwner) {\n          var engine = currentOwner;\n          (true && !(typeof currentOwner.mountPoint === 'string') && (0, _debug.assert)('invalid engine: missing mountPoint', typeof currentOwner.mountPoint === 'string'));\n          (true && !(currentOwner.routable === true) && (0, _debug.assert)('invalid engine: missing routable', currentOwner.routable === true));\n          var mountPoint = engine.mountPoint;\n          state.engine = {\n            mountPoint\n          };\n          environment.extra.debugRenderTree.create(state.engine, {\n            type: 'engine',\n            name: mountPoint,\n            args: _runtime2.EMPTY_ARGS,\n            instance: engine,\n            template: undefined\n          });\n        }\n\n        environment.extra.debugRenderTree.create(state, {\n          type: 'route-template',\n          name: definition.name,\n          args: args.capture(),\n          instance: definition.controller,\n          template: definition.template\n        });\n      }\n\n      return state;\n    }\n\n    getJitStaticLayout({\n      template\n    }, _resolver) {\n      // The router has already resolved the template\n      return (0, _util.unwrapTemplate)(template).asLayout();\n    }\n\n    getCapabilities() {\n      return CAPABILITIES;\n    }\n\n    getSelf({\n      self\n    }) {\n      return self;\n    }\n\n    getTag() {\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        // returning a const tag skips the update hook (VM BUG?)\n        return (0, _validator.createTag)();\n      } else {\n        // an outlet has no hooks\n        return _validator.CONSTANT_TAG;\n      }\n    }\n\n    didRenderLayout(state, bounds) {\n      state.finalize();\n\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        state.environment.extra.debugRenderTree.didRender(state, bounds);\n\n        if (state.engine) {\n          state.environment.extra.debugRenderTree.didRender(state.engine, bounds);\n        }\n\n        state.environment.extra.debugRenderTree.didRender(state.outlet, bounds);\n      }\n    }\n\n    update(state) {\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        state.environment.extra.debugRenderTree.update(state.outlet);\n\n        if (state.engine) {\n          state.environment.extra.debugRenderTree.update(state.engine);\n        }\n\n        state.environment.extra.debugRenderTree.update(state);\n      }\n    }\n\n    didUpdateLayout(state, bounds) {\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        state.environment.extra.debugRenderTree.didRender(state, bounds);\n\n        if (state.engine) {\n          state.environment.extra.debugRenderTree.didRender(state.engine, bounds);\n        }\n\n        state.environment.extra.debugRenderTree.didRender(state.outlet, bounds);\n      }\n    }\n\n    getDestructor(state) {\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        return {\n          destroy() {\n            state.environment.extra.debugRenderTree.willDestroy(state);\n\n            if (state.engine) {\n              state.environment.extra.debugRenderTree.willDestroy(state.engine);\n            }\n\n            state.environment.extra.debugRenderTree.willDestroy(state.outlet);\n          }\n\n        };\n      } else {\n        return null;\n      }\n    }\n\n  }\n\n  var OUTLET_MANAGER = new OutletComponentManager();\n\n  class OutletComponentDefinition {\n    constructor(state, manager = OUTLET_MANAGER) {\n      this.state = state;\n      this.manager = manager;\n    }\n\n  }\n\n  function createRootOutlet(outletView) {\n    if (_environment2.ENV._APPLICATION_TEMPLATE_WRAPPER) {\n      var WRAPPED_CAPABILITIES = (0, _polyfills.assign)({}, CAPABILITIES, {\n        dynamicTag: true,\n        elementHook: true,\n        wrapped: true\n      });\n      var WrappedOutletComponentManager = class extends OutletComponentManager {\n        getTagName(_component) {\n          return 'div';\n        }\n\n        getJitStaticLayout({\n          template\n        }) {\n          // The router has already resolved the template\n          return (0, _util.unwrapTemplate)(template).asWrappedLayout();\n        }\n\n        getCapabilities() {\n          return WRAPPED_CAPABILITIES;\n        }\n\n        didCreateElement(component, element, _operations) {\n          // to add GUID id and class\n          element.setAttribute('class', 'ember-view');\n          element.setAttribute('id', (0, _utils.guidFor)(component));\n        }\n\n      };\n      var WRAPPED_OUTLET_MANAGER = new WrappedOutletComponentManager();\n      return new OutletComponentDefinition(outletView.state, WRAPPED_OUTLET_MANAGER);\n    } else {\n      return new OutletComponentDefinition(outletView.state);\n    }\n  }\n\n  function NOOP() {}\n  /**\n    @module ember\n  */\n\n  /**\n    Represents the internal state of the component.\n  \n    @class ComponentStateBucket\n    @private\n  */\n\n\n  class ComponentStateBucket {\n    constructor(environment, component, args, finalizer, hasWrappedElement) {\n      this.environment = environment;\n      this.component = component;\n      this.args = args;\n      this.finalizer = finalizer;\n      this.hasWrappedElement = hasWrappedElement;\n      this.classRef = null;\n      this.classRef = null;\n      this.argsRevision = args === null ? 0 : (0, _validator.valueForTag)(args.tag);\n      this.rootRef = new _reference.ComponentRootReference(component, environment);\n    }\n\n    willDestroy() {\n      var {\n        component,\n        environment\n      } = this;\n\n      if (environment.isInteractive) {\n        component.trigger('willDestroyElement');\n        component.trigger('willClearRender');\n        var element = (0, _views.getViewElement)(component);\n\n        if (element) {\n          (0, _views.clearElementView)(element);\n          (0, _views.clearViewElement)(component);\n        }\n      }\n\n      component.renderer.unregister(component);\n    }\n\n    destroy() {\n      this.component.destroy();\n    }\n\n    finalize() {\n      var {\n        finalizer\n      } = this;\n      finalizer();\n      this.finalizer = NOOP;\n    }\n\n  }\n\n  class EmberHelperRootReference extends _reference.HelperRootReference {\n    constructor(helper$$1, args, env) {\n      var fnWrapper = args => {\n        var {\n          positional,\n          named\n        } = args;\n        var positionalValue = positional.value();\n        var namedValue = named.value();\n        var ret;\n\n        if (true\n        /* DEBUG */\n        ) {\n          (0, _debug.debugFreeze)(positionalValue);\n          (0, _debug.debugFreeze)(namedValue);\n          (0, _validator.deprecateMutationsInAutotrackingTransaction)(() => {\n            ret = helper$$1.compute(positionalValue, namedValue);\n          });\n        } else {\n          ret = helper$$1.compute(positionalValue, namedValue);\n        }\n\n        if (helper$$1[RECOMPUTE_TAG]) {\n          (0, _validator.consumeTag)(helper$$1[RECOMPUTE_TAG]);\n        }\n\n        return ret;\n      };\n\n      if (true\n      /* DEBUG */\n      ) {\n        var debugName = isClassHelper(helper$$1) ? (0, _utils.getDebugName)(helper$$1) : (0, _utils.getDebugName)(helper$$1.compute);\n        super(fnWrapper, args, env, debugName);\n      } else {\n        super(fnWrapper, args, env);\n      }\n    }\n\n  }\n\n  class UnboundRootReference extends _reference.RootReference {\n    constructor(inner, env, parent, key) {\n      super(env);\n      this.inner = inner;\n      this.env = env;\n\n      if (true\n      /* DEBUG */\n      ) {\n        env.setTemplatePathDebugContext(this, key || 'this', parent || null);\n      }\n    }\n\n    value() {\n      return this.inner;\n    }\n\n    get(key) {\n      var value = this.value();\n\n      if ((0, _utils.isObject)(value)) {\n        // root of interop with ember objects\n        return new UnboundPropertyReference(value[key], this.env, this, key);\n      } else {\n        return _runtime2.PrimitiveReference.create(value);\n      }\n    }\n\n  }\n\n  class UnboundPropertyReference extends UnboundRootReference {}\n\n  function referenceFromParts(root, parts) {\n    var reference = root;\n\n    for (var i = 0; i < parts.length; i++) {\n      reference = reference.get(parts[i]);\n    }\n\n    return reference;\n  }\n\n  function referenceForKey(rootRef, key) {\n    return rootRef.get(key);\n  }\n\n  function referenceForParts(rootRef, parts) {\n    var isAttrs = parts[0] === 'attrs'; // TODO deprecate this\n\n    if (isAttrs) {\n      parts.shift();\n\n      if (parts.length === 1) {\n        return referenceForKey(rootRef, parts[0]);\n      }\n    }\n\n    return referenceFromParts(rootRef, parts);\n  }\n\n  var AttributeBinding = {\n    parse(microsyntax) {\n      var colonIndex = microsyntax.indexOf(':');\n\n      if (colonIndex === -1) {\n        (true && !(microsyntax !== 'class') && (0, _debug.assert)('You cannot use class as an attributeBinding, use classNameBindings instead.', microsyntax !== 'class'));\n        return [microsyntax, microsyntax, true];\n      } else {\n        var prop = microsyntax.substring(0, colonIndex);\n        var attribute = microsyntax.substring(colonIndex + 1);\n        (true && !(attribute !== 'class') && (0, _debug.assert)('You cannot use class as an attributeBinding, use classNameBindings instead.', attribute !== 'class'));\n        return [prop, attribute, false];\n      }\n    },\n\n    install(component, rootRef, parsed, operations, env) {\n      var [prop, attribute, isSimple] = parsed;\n\n      if (attribute === 'id') {\n        var elementId = (0, _metal.get)(component, prop);\n\n        if (elementId === undefined || elementId === null) {\n          elementId = component.elementId;\n        }\n\n        elementId = _runtime2.PrimitiveReference.create(elementId);\n        operations.setAttribute('id', elementId, true, null); // operations.addStaticAttribute(element, 'id', elementId);\n\n        return;\n      }\n\n      var isPath = prop.indexOf('.') > -1;\n      var reference = isPath ? referenceForParts(rootRef, prop.split('.')) : referenceForKey(rootRef, prop);\n      (true && !(!(isSimple && isPath)) && (0, _debug.assert)(`Illegal attributeBinding: '${prop}' is not a valid attribute name.`, !(isSimple && isPath)));\n\n      if (_deprecatedFeatures.EMBER_COMPONENT_IS_VISIBLE && attribute === 'style' && StyleBindingReference !== undefined) {\n        reference = new StyleBindingReference(rootRef, reference, referenceForKey(rootRef, 'isVisible'), env);\n      }\n\n      operations.setAttribute(attribute, reference, false, null); // operations.addDynamicAttribute(element, attribute, reference, false);\n    }\n\n  };\n  var DISPLAY_NONE = 'display: none;';\n  var SAFE_DISPLAY_NONE = htmlSafe(DISPLAY_NONE);\n  var StyleBindingReference;\n  var installIsVisibleBinding;\n\n  if (_deprecatedFeatures.EMBER_COMPONENT_IS_VISIBLE) {\n    StyleBindingReference = class {\n      constructor(parent, inner, isVisible, env) {\n        this.inner = inner;\n        this.isVisible = isVisible;\n        this.env = env;\n        this.tag = (0, _validator.combine)([inner.tag, isVisible.tag]);\n\n        if (true\n        /* DEBUG */\n        ) {\n          env.setTemplatePathDebugContext(this, 'style', parent);\n        }\n      }\n\n      value() {\n        var value = this.inner.value();\n        var isVisible = this.isVisible.value();\n\n        if (isVisible !== undefined) {\n          (true && !(false) && (0, _debug.deprecate)(`The \\`isVisible\\` property on classic component classes is deprecated. Was accessed ${this.env.getTemplatePathDebugContext(this).replace(/^W/, 'w')}`, false, {\n            id: 'ember-component.is-visible',\n            until: '4.0.0',\n            url: 'https://deprecations.emberjs.com/v3.x#toc_ember-component-is-visible'\n          }));\n        }\n\n        if (isVisible !== false) {\n          return value;\n        } else if (!value) {\n          return SAFE_DISPLAY_NONE;\n        } else {\n          var style = value + ' ' + DISPLAY_NONE;\n          return isHTMLSafe(value) ? htmlSafe(style) : style;\n        }\n      }\n\n      get() {\n        return _runtime2.UNDEFINED_REFERENCE;\n      }\n\n    };\n\n    installIsVisibleBinding = (rootRef, operations, environment) => {\n      operations.setAttribute('style', new StyleBindingReference(rootRef, _runtime2.UNDEFINED_REFERENCE, rootRef.get('isVisible'), environment), false, null);\n    };\n  }\n\n  var ClassNameBinding = {\n    install(_element, rootRef, microsyntax, operations) {\n      var [prop, truthy, falsy] = microsyntax.split(':');\n      var isStatic = prop === '';\n\n      if (isStatic) {\n        operations.setAttribute('class', _runtime2.PrimitiveReference.create(truthy), true, null);\n      } else {\n        var isPath = prop.indexOf('.') > -1;\n        var parts = isPath ? prop.split('.') : [];\n        var value = isPath ? referenceForParts(rootRef, parts) : referenceForKey(rootRef, prop);\n        var ref;\n\n        if (truthy === undefined) {\n          ref = new SimpleClassNameBindingReference(value, isPath ? parts[parts.length - 1] : prop);\n        } else {\n          ref = new ColonClassNameBindingReference(value, truthy, falsy);\n        }\n\n        operations.setAttribute('class', ref, false, null);\n      }\n    }\n\n  };\n\n  class SimpleClassNameBindingReference {\n    constructor(inner, path) {\n      this.inner = inner;\n      this.path = path;\n      this.tag = inner.tag;\n      this.dasherizedPath = null;\n    }\n\n    value() {\n      var value = this.inner.value();\n\n      if (value === true) {\n        var {\n          path,\n          dasherizedPath\n        } = this;\n        return dasherizedPath || (this.dasherizedPath = (0, _string.dasherize)(path));\n      } else if (value || value === 0) {\n        return String(value);\n      } else {\n        return null;\n      }\n    }\n\n  }\n\n  class ColonClassNameBindingReference {\n    constructor(inner, truthy = null, falsy = null) {\n      this.inner = inner;\n      this.truthy = truthy;\n      this.falsy = falsy;\n      this.tag = inner.tag;\n    }\n\n    value() {\n      var {\n        inner,\n        truthy,\n        falsy\n      } = this;\n      return inner.value() ? truthy : falsy;\n    }\n\n  }\n  /**\n  @module ember\n  */\n\n  /**\n    The `mut` helper lets you __clearly specify__ that a child `Component` can update the\n    (mutable) value passed to it, which will __change the value of the parent component__.\n  \n    To specify that a parameter is mutable, when invoking the child `Component`:\n  \n    ```handlebars\n    <MyChild @childClickCount={{fn (mut totalClicks)}} />\n    ```\n  \n     or\n  \n    ```handlebars\n    {{my-child childClickCount=(mut totalClicks)}}\n    ```\n  \n    The child `Component` can then modify the parent's value just by modifying its own\n    property:\n  \n    ```javascript\n    // my-child.js\n    export default Component.extend({\n      click() {\n        this.incrementProperty('childClickCount');\n      }\n    });\n    ```\n  \n    Note that for curly components (`{{my-component}}`) the bindings are already mutable,\n    making the `mut` unnecessary.\n  \n    Additionally, the `mut` helper can be combined with the `fn` helper to\n    mutate a value. For example:\n  \n    ```handlebars\n    <MyChild @childClickCount={{this.totalClicks}} @click-count-change={{fn (mut totalClicks))}} />\n    ```\n  \n    or\n  \n    ```handlebars\n    {{my-child childClickCount=totalClicks click-count-change=(fn (mut totalClicks))}}\n    ```\n  \n    The child `Component` would invoke the function with the new click value:\n  \n    ```javascript\n    // my-child.js\n    export default Component.extend({\n      click() {\n        this.get('click-count-change')(this.get('childClickCount') + 1);\n      }\n    });\n    ```\n  \n    The `mut` helper changes the `totalClicks` value to what was provided as the `fn` argument.\n  \n    The `mut` helper, when used with `fn`, will return a function that\n    sets the value passed to `mut` to its first argument. As an example, we can create a\n    button that increments a value passing the value directly to the `fn`:\n  \n    ```handlebars\n    {{! inc helper is not provided by Ember }}\n    <button onclick={{fn (mut count) (inc count)}}>\n      Increment count\n    </button>\n    ```\n  \n    @method mut\n    @param {Object} [attr] the \"two-way\" attribute that can be modified.\n    @for Ember.Templates.helpers\n    @public\n  */\n\n\n  var INVOKE = (0, _utils.symbol)('INVOKE');\n  _exports.INVOKE = INVOKE;\n  var SOURCE = (0, _utils.symbol)('SOURCE');\n\n  class MutReference extends _reference.RootReference {\n    constructor(inner, env) {\n      super(env);\n      this.inner = inner;\n      this.tag = inner.tag;\n      this[SOURCE] = inner;\n    }\n\n    value() {\n      return this.inner.value();\n    }\n\n    get(key) {\n      return this.inner.get(key);\n    }\n\n    [_reference.UPDATE_REFERENCED_VALUE](value) {\n      return this.inner[_reference.UPDATE_REFERENCED_VALUE](value);\n    }\n\n    [INVOKE](value) {\n      return this.inner[_reference.UPDATE_REFERENCED_VALUE](value);\n    }\n\n  }\n\n  function unMut(ref) {\n    return ref[SOURCE] || ref;\n  }\n\n  function mut(args, vm) {\n    var rawRef = args.positional.at(0);\n\n    if (typeof rawRef[INVOKE] === 'function') {\n      return rawRef;\n    } // TODO: Improve this error message. This covers at least two distinct\n    // cases:\n    //\n    // 1. (mut \"not a path\") – passing a literal, result from a helper\n    //    invocation, etc\n    //\n    // 2. (mut receivedValue) – passing a value received from the caller\n    //    that was originally derived from a literal, result from a helper\n    //    invocation, etc\n    //\n    // This message is alright for the first case, but could be quite\n    // confusing for the second case.\n\n\n    (true && !(rawRef[_reference.UPDATE_REFERENCED_VALUE] !== undefined) && (0, _debug.assert)('You can only pass a path to mut', rawRef[_reference.UPDATE_REFERENCED_VALUE] !== undefined));\n    return new MutReference(rawRef, vm.env);\n  }\n  /**\n  @module ember\n  */\n\n\n  var ACTION = (0, _utils.symbol)('ACTION');\n  /**\n    The `{{action}}` helper provides a way to pass triggers for behavior (usually\n    just a function) between components, and into components from controllers.\n  \n    ### Passing functions with the action helper\n  \n    There are three contexts an action helper can be used in. The first two\n    contexts to discuss are attribute context, and Handlebars value context.\n  \n    ```handlebars\n    {{! An example of attribute context }}\n    <div onclick={{action \"save\"}}></div>\n    {{! Examples of Handlebars value context }}\n    {{input on-input=(action \"save\")}}\n    {{yield (action \"refreshData\") andAnotherParam}}\n    ```\n  \n    In these contexts,\n    the helper is called a \"closure action\" helper. Its behavior is simple:\n    If passed a function name, read that function off the `actions` property\n    of the current context. Once that function is read, or immediately if a function was\n    passed, create a closure over that function and any arguments.\n    The resulting value of an action helper used this way is simply a function.\n  \n    For example, in the attribute context:\n  \n    ```handlebars\n    {{! An example of attribute context }}\n    <div onclick={{action \"save\"}}></div>\n    ```\n  \n    The resulting template render logic would be:\n  \n    ```js\n    var div = document.createElement('div');\n    var actionFunction = (function(context){\n      return function() {\n        return context.actions.save.apply(context, arguments);\n      };\n    })(context);\n    div.onclick = actionFunction;\n    ```\n  \n    Thus when the div is clicked, the action on that context is called.\n    Because the `actionFunction` is just a function, closure actions can be\n    passed between components and still execute in the correct context.\n  \n    Here is an example action handler on a component:\n  \n    ```app/components/my-component.js\n    import Component from '@glimmer/component';\n    import { action } from '@ember/object';\n  \n    export default class extends Component {\n      @action\n      save() {\n        this.model.save();\n      }\n    }\n    ```\n  \n    Actions are always looked up on the `actions` property of the current context.\n    This avoids collisions in the naming of common actions, such as `destroy`.\n    Two options can be passed to the `action` helper when it is used in this way.\n  \n    * `target=someProperty` will look to `someProperty` instead of the current\n      context for the `actions` hash. This can be useful when targeting a\n      service for actions.\n    * `value=\"target.value\"` will read the path `target.value` off the first\n      argument to the action when it is called and rewrite the first argument\n      to be that value. This is useful when attaching actions to event listeners.\n  \n    ### Invoking an action\n  \n    Closure actions curry both their scope and any arguments. When invoked, any\n    additional arguments are added to the already curried list.\n    Actions should be invoked using the [sendAction](/ember/release/classes/Component/methods/sendAction?anchor=sendAction)\n    method. The first argument to `sendAction` is the action to be called, and\n    additional arguments are passed to the action function. This has interesting\n    properties combined with currying of arguments. For example:\n  \n    ```app/components/update-name.js\n    import Component from '@glimmer/component';\n    import { action } from '@ember/object';\n  \n    export default class extends Component {\n      @action\n      setName(model, name) {\n        model.set('name', name);\n      }\n    }\n    ```\n  \n    ```app/components/update-name.hbs\n    {{input on-input=(action (action 'setName' @model) value=\"target.value\")}}\n    ```\n  \n    The first argument (`@model`) was curried over, and the run-time argument (`event`)\n    becomes a second argument. Action calls can be nested this way because each simply\n    returns a function. Any function can be passed to the `{{action}}` helper, including\n    other actions.\n  \n    Actions invoked with `sendAction` have the same currying behavior as demonstrated\n    with `on-input` above. For example:\n  \n    ```app/components/my-input.js\n    import Component from '@glimmer/component';\n    import { action } from '@ember/object';\n  \n    export default class extends Component {\n      @action\n      setName(model, name) {\n        model.set('name', name);\n      }\n    }\n    ```\n  \n    ```handlebars\n    <MyInput @submit={{action 'setName' @model}} />\n    ```\n  \n    or\n  \n    ```handlebars\n    {{my-input submit=(action 'setName' @model)}}\n    ```\n  \n    ```app/components/my-component.js\n    import Component from '@ember/component';\n  \n    export default Component.extend({\n      click() {\n        // Note that model is not passed, it was curried in the template\n        this.sendAction('submit', 'bob');\n      }\n    });\n    ```\n  \n    ### Attaching actions to DOM elements\n  \n    The third context of the `{{action}}` helper can be called \"element space\".\n    For example:\n  \n    ```handlebars\n    {{! An example of element space }}\n    <div {{action \"save\"}}></div>\n    ```\n  \n    Used this way, the `{{action}}` helper provides a useful shortcut for\n    registering an HTML element in a template for a single DOM event and\n    forwarding that interaction to the template's context (controller or component).\n    If the context of a template is a controller, actions used this way will\n    bubble to routes when the controller does not implement the specified action.\n    Once an action hits a route, it will bubble through the route hierarchy.\n  \n    ### Event Propagation\n  \n    `{{action}}` helpers called in element space can control event bubbling. Note\n    that the closure style actions cannot.\n  \n    Events triggered through the action helper will automatically have\n    `.preventDefault()` called on them. You do not need to do so in your event\n    handlers. If you need to allow event propagation (to handle file inputs for\n    example) you can supply the `preventDefault=false` option to the `{{action}}` helper:\n  \n    ```handlebars\n    <div {{action \"sayHello\" preventDefault=false}}>\n      <input type=\"file\" />\n      <input type=\"checkbox\" />\n    </div>\n    ```\n  \n    To disable bubbling, pass `bubbles=false` to the helper:\n  \n    ```handlebars\n    <button {{action 'edit' post bubbles=false}}>Edit</button>\n    ```\n  \n    To disable bubbling with closure style actions you must create your own\n    wrapper helper that makes use of `event.stopPropagation()`:\n  \n    ```handlebars\n    <div onclick={{disable-bubbling (action \"sayHello\")}}>Hello</div>\n    ```\n  \n    ```app/helpers/disable-bubbling.js\n    import { helper } from '@ember/component/helper';\n  \n    export function disableBubbling([action]) {\n      return function(event) {\n        event.stopPropagation();\n        return action(event);\n      };\n    }\n    export default helper(disableBubbling);\n    ```\n  \n    If you need the default handler to trigger you should either register your\n    own event handler, or use event methods on your view class. See\n    [\"Responding to Browser Events\"](/ember/release/classes/Component)\n    in the documentation for `Component` for more information.\n  \n    ### Specifying DOM event type\n  \n    `{{action}}` helpers called in element space can specify an event type.\n    By default the `{{action}}` helper registers for DOM `click` events. You can\n    supply an `on` option to the helper to specify a different DOM event name:\n  \n    ```handlebars\n    <div {{action \"anActionName\" on=\"doubleClick\"}}>\n      click me\n    </div>\n    ```\n  \n    See [\"Event Names\"](/ember/release/classes/Component) for a list of\n    acceptable DOM event names.\n  \n    ### Specifying whitelisted modifier keys\n  \n    `{{action}}` helpers called in element space can specify modifier keys.\n    By default the `{{action}}` helper will ignore click events with pressed modifier\n    keys. You can supply an `allowedKeys` option to specify which keys should not be ignored.\n  \n    ```handlebars\n    <div {{action \"anActionName\" allowedKeys=\"alt\"}}>\n      click me\n    </div>\n    ```\n  \n    This way the action will fire when clicking with the alt key pressed down.\n    Alternatively, supply \"any\" to the `allowedKeys` option to accept any combination of modifier keys.\n  \n    ```handlebars\n    <div {{action \"anActionName\" allowedKeys=\"any\"}}>\n      click me with any key pressed\n    </div>\n    ```\n  \n    ### Specifying a Target\n  \n    A `target` option can be provided to the helper to change\n    which object will receive the method call. This option must be a path\n    to an object, accessible in the current context:\n  \n    ```app/templates/application.hbs\n    <div {{action \"anActionName\" target=someService}}>\n      click me\n    </div>\n    ```\n  \n    ```app/controllers/application.js\n    import Controller from '@ember/controller';\n    import { inject as service } from '@ember/service';\n  \n    export default class extends Controller {\n      @service someService;\n    }\n    ```\n  \n    @method action\n    @for Ember.Templates.helpers\n    @public\n  */\n\n  function action(args, vm) {\n    var {\n      named,\n      positional\n    } = args;\n    var capturedArgs = positional.capture(); // The first two argument slots are reserved.\n    // pos[0] is the context (or `this`)\n    // pos[1] is the action name or function\n    // Anything else is an action argument.\n\n    var [context, action, ...restArgs] = capturedArgs.references; // TODO: Is there a better way of doing this?\n\n    var debugKey = action.propertyKey;\n    var target = named.has('target') ? named.get('target') : context;\n    var processArgs = makeArgsProcessor(named.has('value') && named.get('value'), restArgs);\n    var fn;\n\n    if (typeof action[INVOKE] === 'function') {\n      fn = makeClosureAction(action, action, action[INVOKE], processArgs, debugKey);\n    } else if ((0, _validator.isConst)(target) && (0, _validator.isConst)(action)) {\n      fn = makeClosureAction(context.value(), target.value(), action.value(), processArgs, debugKey);\n    } else {\n      fn = makeDynamicClosureAction(context.value(), target, action, processArgs, debugKey);\n    }\n\n    fn[ACTION] = true;\n    return new UnboundRootReference(fn, vm.env);\n  }\n\n  function NOOP$1(args) {\n    return args;\n  }\n\n  function makeArgsProcessor(valuePathRef, actionArgsRef) {\n    var mergeArgs;\n\n    if (actionArgsRef.length > 0) {\n      mergeArgs = args => {\n        return actionArgsRef.map(ref => ref.value()).concat(args);\n      };\n    }\n\n    var readValue;\n\n    if (valuePathRef) {\n      readValue = args => {\n        var valuePath = valuePathRef.value();\n\n        if (valuePath && args.length > 0) {\n          args[0] = (0, _metal.get)(args[0], valuePath);\n        }\n\n        return args;\n      };\n    }\n\n    if (mergeArgs && readValue) {\n      return args => {\n        return readValue(mergeArgs(args));\n      };\n    } else {\n      return mergeArgs || readValue || NOOP$1;\n    }\n  }\n\n  function makeDynamicClosureAction(context, targetRef, actionRef, processArgs, debugKey) {\n    // We don't allow undefined/null values, so this creates a throw-away action to trigger the assertions\n    if (true\n    /* DEBUG */\n    ) {\n      makeClosureAction(context, targetRef.value(), actionRef.value(), processArgs, debugKey);\n    }\n\n    return (...args) => {\n      return makeClosureAction(context, targetRef.value(), actionRef.value(), processArgs, debugKey)(...args);\n    };\n  }\n\n  function makeClosureAction(context, target, action, processArgs, debugKey) {\n    var self;\n    var fn;\n    (true && !(action !== undefined && action !== null) && (0, _debug.assert)(`Action passed is null or undefined in (action) from ${target}.`, action !== undefined && action !== null));\n\n    if (typeof action[INVOKE] === 'function') {\n      self = action;\n      fn = action[INVOKE];\n    } else {\n      var typeofAction = typeof action;\n\n      if (typeofAction === 'string') {\n        self = target;\n        fn = target.actions && target.actions[action];\n        (true && !(fn) && (0, _debug.assert)(`An action named '${action}' was not found in ${target}`, fn));\n      } else if (typeofAction === 'function') {\n        self = context;\n        fn = action;\n      } else {\n        // tslint:disable-next-line:max-line-length\n        (true && !(false) && (0, _debug.assert)(`An action could not be made for \\`${debugKey || action}\\` in ${target}. Please confirm that you are using either a quoted action name (i.e. \\`(action '${debugKey || 'myAction'}')\\`) or a function available in ${target}.`, false));\n      }\n    }\n\n    return (...args) => {\n      var payload = {\n        target: self,\n        args,\n        label: '@glimmer/closure-action'\n      };\n      return (0, _instrumentation.flaggedInstrument)('interaction.ember-action', payload, () => {\n        return (0, _runloop.join)(self, fn, ...processArgs(args));\n      });\n    };\n  } // inputs needed by CurlyComponents (attrs and props, with mutable\n  // cells, etc).\n\n\n  function processComponentArgs(namedArgs) {\n    var keys = namedArgs.names;\n    var attrs = namedArgs.value();\n    var props = Object.create(null);\n    var args = Object.create(null);\n    props[ARGS] = args;\n\n    for (var i = 0; i < keys.length; i++) {\n      var name = keys[i];\n      var ref = namedArgs.get(name);\n      var value = attrs[name];\n\n      if (typeof value === 'function' && value[ACTION]) {\n        attrs[name] = value;\n      } else if (ref[_reference.UPDATE_REFERENCED_VALUE]) {\n        attrs[name] = new MutableCell(ref, value);\n      }\n\n      args[name] = ref;\n      props[name] = value;\n    }\n\n    props.attrs = attrs;\n    return props;\n  }\n\n  var REF = (0, _utils.symbol)('REF');\n\n  class MutableCell {\n    constructor(ref, value) {\n      this[_views.MUTABLE_CELL] = true;\n      this[REF] = ref;\n      this.value = value;\n    }\n\n    update(val) {\n      this[REF][_reference.UPDATE_REFERENCED_VALUE](val);\n    }\n\n  }\n\n  var __rest = undefined && undefined.__rest || function (s, e) {\n    var t = {};\n\n    for (var p in s) {\n      if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0) t[p] = s[p];\n    }\n\n    if (s != null && typeof Object.getOwnPropertySymbols === \"function\") for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++) {\n      if (e.indexOf(p[i]) < 0 && Object.prototype.propertyIsEnumerable.call(s, p[i])) t[p[i]] = s[p[i]];\n    }\n    return t;\n  };\n\n  function aliasIdToElementId(args, props) {\n    if (args.named.has('id')) {\n      // tslint:disable-next-line:max-line-length\n      (true && !(!args.named.has('elementId')) && (0, _debug.assert)(`You cannot invoke a component with both 'id' and 'elementId' at the same time.`, !args.named.has('elementId')));\n      props.elementId = props.id;\n    }\n  } // We must traverse the attributeBindings in reverse keeping track of\n  // what has already been applied. This is essentially refining the concatenated\n  // properties applying right to left.\n\n\n  function applyAttributeBindings(attributeBindings, component, rootRef, operations, environment) {\n    var seen = [];\n    var i = attributeBindings.length - 1;\n\n    while (i !== -1) {\n      var binding = attributeBindings[i];\n      var parsed = AttributeBinding.parse(binding);\n      var attribute = parsed[1];\n\n      if (seen.indexOf(attribute) === -1) {\n        seen.push(attribute);\n        AttributeBinding.install(component, rootRef, parsed, operations, environment);\n      }\n\n      i--;\n    }\n\n    if (seen.indexOf('id') === -1) {\n      var id$$1 = component.elementId ? component.elementId : (0, _utils.guidFor)(component);\n      operations.setAttribute('id', _runtime2.PrimitiveReference.create(id$$1), false, null);\n    }\n\n    if (_deprecatedFeatures.EMBER_COMPONENT_IS_VISIBLE && installIsVisibleBinding !== undefined && seen.indexOf('style') === -1) {\n      installIsVisibleBinding(rootRef, operations, environment);\n    }\n  }\n\n  var DEFAULT_LAYOUT = (0, _container.privatize)`template:components/-default`;\n  var EMPTY_POSITIONAL_ARGS = [];\n  (0, _debug.debugFreeze)(EMPTY_POSITIONAL_ARGS);\n\n  class CurlyComponentManager extends AbstractManager {\n    templateFor(component) {\n      var {\n        layout,\n        layoutName\n      } = component;\n      var owner = (0, _owner.getOwner)(component);\n      var factory;\n\n      if (layout === undefined) {\n        if (layoutName !== undefined) {\n          var _factory = owner.lookup(`template:${layoutName}`);\n\n          (true && !(_factory !== undefined) && (0, _debug.assert)(`Layout \\`${layoutName}\\` not found!`, _factory !== undefined));\n          factory = _factory;\n        } else {\n          factory = owner.lookup(DEFAULT_LAYOUT);\n        }\n      } else if (isTemplateFactory(layout)) {\n        factory = layout;\n      } else {\n        // we were provided an instance already\n        return layout;\n      }\n\n      return factory(owner);\n    }\n\n    getJitStaticLayout(state, _resolver) {\n      return (0, _util.unwrapTemplate)(state.template).asLayout();\n    }\n\n    getJitDynamicLayout(bucket) {\n      var component = bucket.component;\n      var template$$1 = this.templateFor(component);\n\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        bucket.environment.extra.debugRenderTree.setTemplate(bucket, template$$1);\n      }\n\n      return template$$1;\n    }\n\n    getTagName(state) {\n      var {\n        component,\n        hasWrappedElement\n      } = state;\n\n      if (!hasWrappedElement) {\n        return null;\n      }\n\n      return component && component.tagName || 'div';\n    }\n\n    getCapabilities(state) {\n      return state.capabilities;\n    }\n\n    prepareArgs(state, args) {\n      if (args.named.has('__ARGS__')) {\n        var _a = args.named.capture().map,\n            {\n          __ARGS__\n        } = _a,\n            rest = __rest(_a, [\"__ARGS__\"]);\n\n        var prepared = {\n          positional: EMPTY_POSITIONAL_ARGS,\n          named: (0, _polyfills.assign)({}, rest, __ARGS__.value())\n        };\n        return prepared;\n      }\n\n      var {\n        positionalParams\n      } = state.ComponentClass.class; // early exits\n\n      if (positionalParams === undefined || positionalParams === null || args.positional.length === 0) {\n        return null;\n      }\n\n      var named;\n\n      if (typeof positionalParams === 'string') {\n        (true && !(!args.named.has(positionalParams)) && (0, _debug.assert)(`You cannot specify positional parameters and the hash argument \\`${positionalParams}\\`.`, !args.named.has(positionalParams)));\n        named = {\n          [positionalParams]: args.positional.capture()\n        };\n        (0, _polyfills.assign)(named, args.named.capture().map);\n      } else if (Array.isArray(positionalParams) && positionalParams.length > 0) {\n        var count = Math.min(positionalParams.length, args.positional.length);\n        named = {};\n        (0, _polyfills.assign)(named, args.named.capture().map);\n\n        for (var i = 0; i < count; i++) {\n          var name = positionalParams[i];\n          (true && !(!args.named.has(name)) && (0, _debug.assert)(`You cannot specify both a positional param (at position ${i}) and the hash argument \\`${name}\\`.`, !args.named.has(name)));\n          named[name] = args.positional.at(i);\n        }\n      } else {\n        return null;\n      }\n\n      return {\n        positional: _util.EMPTY_ARRAY,\n        named\n      };\n    }\n    /*\n     * This hook is responsible for actually instantiating the component instance.\n     * It also is where we perform additional bookkeeping to support legacy\n     * features like exposed by view mixins like ChildViewSupport, ActionSupport,\n     * etc.\n     */\n\n\n    create(environment, state, args, dynamicScope, callerSelfRef, hasBlock) {\n      // Get the nearest concrete component instance from the scope. \"Virtual\"\n      // components will be skipped.\n      var parentView = dynamicScope.view; // Get the Ember.Component subclass to instantiate for this component.\n\n      var factory = state.ComponentClass; // Capture the arguments, which tells Glimmer to give us our own, stable\n      // copy of the Arguments object that is safe to hold on to between renders.\n\n      var capturedArgs = args.named.capture();\n      var props = processComponentArgs(capturedArgs); // Alias `id` argument to `elementId` property on the component instance.\n\n      aliasIdToElementId(args, props); // Set component instance's parentView property to point to nearest concrete\n      // component.\n\n      props.parentView = parentView; // Set whether this component was invoked with a block\n      // (`{{#my-component}}{{/my-component}}`) or without one\n      // (`{{my-component}}`).\n\n      props[HAS_BLOCK] = hasBlock; // Save the current `this` context of the template as the component's\n      // `_target`, so bubbled actions are routed to the right place.\n\n      props._target = callerSelfRef.value(); // static layout asserts CurriedDefinition\n\n      if (state.template) {\n        props.layout = state.template;\n      } // caller:\n      // <FaIcon @name=\"bug\" />\n      //\n      // callee:\n      // <i class=\"fa-{{@name}}\"></i>\n      // Now that we've built up all of the properties to set on the component instance,\n      // actually create it.\n\n\n      var component = factory.create(props);\n      var finalizer = (0, _instrumentation._instrumentStart)('render.component', initialRenderInstrumentDetails, component); // We become the new parentView for downstream components, so save our\n      // component off on the dynamic scope.\n\n      dynamicScope.view = component; // Unless we're the root component, we need to add ourselves to our parent\n      // component's childViews array.\n\n      if (parentView !== null && parentView !== undefined) {\n        (0, _views.addChildView)(parentView, component);\n      }\n\n      component.trigger('didReceiveAttrs');\n      var hasWrappedElement = component.tagName !== ''; // We usually do this in the `didCreateElement`, but that hook doesn't fire for tagless components\n\n      if (!hasWrappedElement) {\n        if (environment.isInteractive) {\n          component.trigger('willRender');\n        }\n\n        component._transitionTo('hasElement');\n\n        if (environment.isInteractive) {\n          component.trigger('willInsertElement');\n        }\n      } // Track additional lifecycle metadata about this component in a state bucket.\n      // Essentially we're saving off all the state we'll need in the future.\n\n\n      var bucket = new ComponentStateBucket(environment, component, capturedArgs, finalizer, hasWrappedElement);\n\n      if (args.named.has('class')) {\n        bucket.classRef = args.named.get('class');\n      }\n\n      if (true\n      /* DEBUG */\n      ) {\n        processComponentInitializationAssertions(component, props);\n      }\n\n      if (environment.isInteractive && hasWrappedElement) {\n        component.trigger('willRender');\n      }\n\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        environment.extra.debugRenderTree.create(bucket, {\n          type: 'component',\n          name: state.name,\n          args: args.capture(),\n          instance: component,\n          template: state.template\n        });\n      }\n\n      return bucket;\n    }\n\n    getSelf({\n      rootRef\n    }) {\n      return rootRef;\n    }\n\n    didCreateElement({\n      component,\n      classRef,\n      environment,\n      rootRef\n    }, element, operations) {\n      (0, _views.setViewElement)(component, element);\n      (0, _views.setElementView)(element, component);\n      var {\n        attributeBindings,\n        classNames,\n        classNameBindings\n      } = component;\n\n      if (attributeBindings && attributeBindings.length) {\n        applyAttributeBindings(attributeBindings, component, rootRef, operations, environment);\n      } else {\n        var id$$1 = component.elementId ? component.elementId : (0, _utils.guidFor)(component);\n        operations.setAttribute('id', _runtime2.PrimitiveReference.create(id$$1), false, null);\n\n        if (_deprecatedFeatures.EMBER_COMPONENT_IS_VISIBLE) {\n          installIsVisibleBinding(rootRef, operations, environment);\n        }\n      }\n\n      if (classRef) {\n        var ref = new SimpleClassNameBindingReference(classRef, classRef['propertyKey']);\n        operations.setAttribute('class', ref, false, null);\n      }\n\n      if (classNames && classNames.length) {\n        classNames.forEach(name => {\n          operations.setAttribute('class', _runtime2.PrimitiveReference.create(name), false, null);\n        });\n      }\n\n      if (classNameBindings && classNameBindings.length) {\n        classNameBindings.forEach(binding => {\n          ClassNameBinding.install(element, rootRef, binding, operations);\n        });\n      }\n\n      operations.setAttribute('class', _runtime2.PrimitiveReference.create('ember-view'), false, null);\n\n      if ('ariaRole' in component) {\n        operations.setAttribute('role', referenceForKey(rootRef, 'ariaRole'), false, null);\n      }\n\n      component._transitionTo('hasElement');\n\n      if (environment.isInteractive) {\n        component.trigger('willInsertElement');\n      }\n    }\n\n    didRenderLayout(bucket, bounds) {\n      bucket.component[BOUNDS] = bounds;\n      bucket.finalize();\n\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        bucket.environment.extra.debugRenderTree.didRender(bucket, bounds);\n      }\n    }\n\n    getTag({\n      args,\n      component\n    }) {\n      return args ? (0, _validator.combine)([args.tag, component[DIRTY_TAG]]) : component[DIRTY_TAG];\n    }\n\n    didCreate({\n      component,\n      environment\n    }) {\n      if (environment.isInteractive) {\n        component._transitionTo('inDOM');\n\n        component.trigger('didInsertElement');\n        component.trigger('didRender');\n      }\n    }\n\n    update(bucket) {\n      var {\n        component,\n        args,\n        argsRevision,\n        environment\n      } = bucket;\n\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        environment.extra.debugRenderTree.update(bucket);\n      }\n\n      bucket.finalizer = (0, _instrumentation._instrumentStart)('render.component', rerenderInstrumentDetails, component);\n\n      if (args && !(0, _validator.validateTag)(args.tag, argsRevision)) {\n        var props = processComponentArgs(args);\n        bucket.argsRevision = (0, _validator.valueForTag)(args.tag);\n        component[IS_DISPATCHING_ATTRS] = true;\n        component.setProperties(props);\n        component[IS_DISPATCHING_ATTRS] = false;\n        component.trigger('didUpdateAttrs');\n        component.trigger('didReceiveAttrs');\n      }\n\n      if (environment.isInteractive) {\n        component.trigger('willUpdate');\n        component.trigger('willRender');\n      }\n    }\n\n    didUpdateLayout(bucket, bounds) {\n      bucket.finalize();\n\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        bucket.environment.extra.debugRenderTree.didRender(bucket, bounds);\n      }\n    }\n\n    didUpdate({\n      component,\n      environment\n    }) {\n      if (environment.isInteractive) {\n        component.trigger('didUpdate');\n        component.trigger('didRender');\n      }\n    }\n\n    getDestructor(bucket) {\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        return {\n          willDestroy() {\n            bucket.willDestroy();\n          },\n\n          destroy() {\n            bucket.environment.extra.debugRenderTree.willDestroy(bucket);\n            bucket.destroy();\n          }\n\n        };\n      } else {\n        return bucket;\n      }\n    }\n\n  }\n\n  function processComponentInitializationAssertions(component, props) {\n    (true && !((() => {\n      var {\n        classNameBindings\n      } = component;\n\n      for (var i = 0; i < classNameBindings.length; i++) {\n        var binding = classNameBindings[i];\n\n        if (typeof binding !== 'string' || binding.length === 0) {\n          return false;\n        }\n      }\n\n      return true;\n    })()) && (0, _debug.assert)(`classNameBindings must be non-empty strings: ${component}`, (() => {\n      var {\n        classNameBindings\n      } = component;\n\n      for (var i = 0; i < classNameBindings.length; i++) {\n        var binding = classNameBindings[i];\n\n        if (typeof binding !== 'string' || binding.length === 0) {\n          return false;\n        }\n      }\n\n      return true;\n    })()));\n    (true && !((() => {\n      var {\n        classNameBindings\n      } = component;\n\n      for (var i = 0; i < classNameBindings.length; i++) {\n        var binding = classNameBindings[i];\n\n        if (binding.split(' ').length > 1) {\n          return false;\n        }\n      }\n\n      return true;\n    })()) && (0, _debug.assert)(`classNameBindings must not have spaces in them: ${component}`, (() => {\n      var {\n        classNameBindings\n      } = component;\n\n      for (var i = 0; i < classNameBindings.length; i++) {\n        var binding = classNameBindings[i];\n\n        if (binding.split(' ').length > 1) {\n          return false;\n        }\n      }\n\n      return true;\n    })()));\n    (true && !(component.tagName !== '' || !component.classNameBindings || component.classNameBindings.length === 0) && (0, _debug.assert)(`You cannot use \\`classNameBindings\\` on a tag-less component: ${component}`, component.tagName !== '' || !component.classNameBindings || component.classNameBindings.length === 0));\n    (true && !(component.tagName !== '' || props.id === component.elementId || !component.elementId && component.elementId !== '') && (0, _debug.assert)(`You cannot use \\`elementId\\` on a tag-less component: ${component}`, component.tagName !== '' || props.id === component.elementId || !component.elementId && component.elementId !== ''));\n    (true && !(component.tagName !== '' || !component.attributeBindings || component.attributeBindings.length === 0) && (0, _debug.assert)(`You cannot use \\`attributeBindings\\` on a tag-less component: ${component}`, component.tagName !== '' || !component.attributeBindings || component.attributeBindings.length === 0));\n  }\n\n  function initialRenderInstrumentDetails(component) {\n    return component.instrumentDetails({\n      initialRender: true\n    });\n  }\n\n  function rerenderInstrumentDetails(component) {\n    return component.instrumentDetails({\n      initialRender: false\n    });\n  }\n\n  var CURLY_CAPABILITIES = {\n    dynamicLayout: true,\n    dynamicTag: true,\n    prepareArgs: true,\n    createArgs: true,\n    attributeHook: true,\n    elementHook: true,\n    createCaller: true,\n    dynamicScope: true,\n    updateHook: true,\n    createInstance: true,\n    wrapped: true,\n    willDestroy: true\n  };\n  var CURLY_COMPONENT_MANAGER = new CurlyComponentManager();\n\n  class CurlyComponentDefinition {\n    constructor(name, ComponentClass, template$$1, args) {\n      this.name = name;\n      this.ComponentClass = ComponentClass;\n      this.template = template$$1;\n      this.args = args;\n      this.manager = CURLY_COMPONENT_MANAGER;\n      this.state = {\n        name,\n        ComponentClass,\n        template: template$$1,\n        capabilities: CURLY_CAPABILITIES\n      };\n    }\n\n  }\n\n  class RootComponentManager extends CurlyComponentManager {\n    constructor(component) {\n      super();\n      this.component = component;\n    }\n\n    getJitStaticLayout(_state) {\n      var template = this.templateFor(this.component);\n      return (0, _util.unwrapTemplate)(template).asWrappedLayout();\n    }\n\n    create(environment, state, _args, dynamicScope) {\n      var component = this.component;\n      var finalizer = (0, _instrumentation._instrumentStart)('render.component', initialRenderInstrumentDetails, component);\n      dynamicScope.view = component;\n      var hasWrappedElement = component.tagName !== ''; // We usually do this in the `didCreateElement`, but that hook doesn't fire for tagless components\n\n      if (!hasWrappedElement) {\n        if (environment.isInteractive) {\n          component.trigger('willRender');\n        }\n\n        component._transitionTo('hasElement');\n\n        if (environment.isInteractive) {\n          component.trigger('willInsertElement');\n        }\n      }\n\n      if (true\n      /* DEBUG */\n      ) {\n        processComponentInitializationAssertions(component, {});\n      }\n\n      var bucket = new ComponentStateBucket(environment, component, null, finalizer, hasWrappedElement);\n\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        environment.extra.debugRenderTree.create(bucket, {\n          type: 'component',\n          name: state.name,\n          args: _runtime2.EMPTY_ARGS,\n          instance: component,\n          template: state.template\n        });\n      }\n\n      return bucket;\n    }\n\n  } // ROOT is the top-level template it has nothing but one yield.\n  // it is supposed to have a dummy element\n\n\n  var ROOT_CAPABILITIES = {\n    dynamicLayout: false,\n    dynamicTag: true,\n    prepareArgs: false,\n    createArgs: false,\n    attributeHook: true,\n    elementHook: true,\n    createCaller: true,\n    dynamicScope: true,\n    updateHook: true,\n    createInstance: true,\n    wrapped: true,\n    willDestroy: false\n  };\n\n  class RootComponentDefinition {\n    constructor(component) {\n      this.component = component;\n      var manager = new RootComponentManager(component);\n      this.manager = manager;\n\n      var factory = _container.FACTORY_FOR.get(component);\n\n      this.state = {\n        name: factory.fullName.slice(10),\n        capabilities: ROOT_CAPABILITIES,\n        ComponentClass: factory\n      };\n    }\n\n    getTag({\n      component\n    }) {\n      return component[DIRTY_TAG];\n    }\n\n  }\n  /* globals module, URL */\n\n\n  var nodeURL;\n  var parsingNode;\n\n  function installProtocolForURL(environment) {\n    var protocol;\n\n    if (_browserEnvironment.hasDOM) {\n      protocol = browserProtocolForURL.call(environment, 'foobar:baz');\n    } // Test to see if our DOM implementation parses\n    // and normalizes URLs.\n\n\n    if (protocol === 'foobar:') {\n      // Swap in the method that doesn't do this test now that\n      // we know it works.\n      environment.protocolForURL = browserProtocolForURL;\n    } else if (typeof URL === 'object') {\n      // URL globally provided, likely from FastBoot's sandbox\n      nodeURL = URL;\n      environment.protocolForURL = nodeProtocolForURL;\n    } else if (typeof module !== 'undefined' && typeof module.require === 'function') {\n      // Otherwise, we need to fall back to our own URL parsing.\n      // Global `require` is shadowed by Ember's loader so we have to use the fully\n      // qualified `module.require`.\n      // tslint:disable-next-line:no-require-imports\n      nodeURL = module.require('url');\n      environment.protocolForURL = nodeProtocolForURL;\n    } else {\n      throw new Error('Could not find valid URL parsing mechanism for URL Sanitization');\n    }\n  }\n\n  function browserProtocolForURL(url) {\n    if (!parsingNode) {\n      parsingNode = document.createElement('a');\n    }\n\n    parsingNode.href = url;\n    return parsingNode.protocol;\n  }\n\n  function nodeProtocolForURL(url) {\n    var protocol = null;\n\n    if (typeof url === 'string') {\n      protocol = nodeURL.parse(url).protocol;\n    }\n\n    return protocol === null ? ':' : protocol;\n  }\n\n  var GUID = 0;\n\n  function isPathNode(node) {\n    return node.type === 'root' || node.type === 'argument' || node.type === 'property' || node.type === 'iterator';\n  }\n\n  class Ref {\n    constructor(value) {\n      this.id = GUID++;\n      this.value = value;\n    }\n\n    get() {\n      return this.value;\n    }\n\n    release() {\n      (true && !(this.value !== null) && (0, _debug.assert)('BUG: double release?', this.value !== null));\n      this.value = null;\n    }\n\n    toString() {\n      var label = `Ref ${this.id}`;\n\n      if (this.value === null) {\n        return `${label} (released)`;\n      } else {\n        try {\n          return `${label}: ${this.value}`;\n        } catch (_a) {\n          return label;\n        }\n      }\n    }\n\n  }\n\n  var _repeat = String.prototype.repeat || function (count) {\n    return new Array(count + 1).join(this);\n  };\n\n  function repeatString(str, count) {\n    return _repeat.call(str, count);\n  }\n\n  class DebugRenderTree {\n    constructor() {\n      this.stack = new _util.Stack();\n      this.refs = new WeakMap();\n      this.roots = new Set();\n      this.nodes = new WeakMap();\n      this.pathNodes = new WeakMap();\n    }\n\n    begin() {\n      this.reset();\n    }\n\n    create(state, node) {\n      var internalNode = (0, _polyfills.assign)({}, node, {\n        bounds: null,\n        refs: new Set(),\n        paths: new Set()\n      });\n      this.nodes.set(state, internalNode);\n      this.appendChild(internalNode, state);\n      this.enter(state);\n    }\n\n    update(state) {\n      this.enter(state);\n    } // for dynamic layouts\n\n\n    setTemplate(state, template) {\n      this.nodeFor(state).template = template;\n    }\n\n    didRender(state, bounds) {\n      (true && !(this.stack.current === state) && (0, _debug.assert)(`BUG: expecting ${this.stack.current}, got ${state}`, this.stack.current === state));\n      this.nodeFor(state).bounds = bounds;\n      this.exit();\n    }\n\n    willDestroy(state) {\n      (0, _util.expect)(this.refs.get(state), 'BUG: missing ref').release();\n    }\n\n    commit() {\n      this.reset();\n    }\n\n    capture() {\n      return this.captureRefs(this.roots);\n    }\n\n    createPath(pathRef, name, type, parentRef) {\n      (true && !(!this.pathNodes.has(pathRef)) && (0, _debug.assert)('BUG: Attempted to register a path that had already been registered', !this.pathNodes.has(pathRef)));\n      var {\n        current\n      } = this.stack;\n\n      if (current === null) {\n        // Not currently in a rendering context, don't register the node\n        return;\n      }\n\n      var currentNode = (0, _util.expect)(this.nodes.get(current), 'BUG: Attempted to create a path, but there is no current render node');\n      var parent;\n\n      if (parentRef === null) {\n        parent = currentNode;\n      } else {\n        var {\n          named\n        } = currentNode.args;\n        var refIndex = named.references.indexOf(parentRef);\n\n        if (refIndex !== -1) {\n          parent = {\n            parent: currentNode,\n            type: 'argument',\n            name: `@${named.names[refIndex]}`,\n            paths: new Set()\n          };\n        } else if (this.pathNodes.has(parentRef)) {\n          parent = this.pathNodes.get(parentRef);\n        } else {\n          // Some RootReferences get created before a component context has been\n          // setup (root, curly). This is mainly because the debugRenderTree is\n          // tied to the manager hooks, and not built into the VM directly. In\n          // these cases, we setup the path lazily when the first property is\n          // accessed.\n          this.createPath(parentRef, 'this', 'root', null);\n          parent = this.pathNodes.get(parentRef);\n        }\n      }\n\n      var pathNode = {\n        name,\n        type,\n        parent,\n        paths: new Set()\n      };\n      parent.paths.add(pathNode);\n      this.pathNodes.set(pathRef, pathNode);\n    }\n\n    logRenderStackForPath(pathRef) {\n      var node = (0, _util.expect)(this.pathNodes.get(pathRef), 'BUG: Attempted to create a log for a path reference, but no node exist for that reference');\n      var pathParts = [];\n\n      while (node !== undefined && isPathNode(node)) {\n        if (node.type === 'iterator') {\n          // Iterator items are a combination of their own name (the key of the item) and\n          // their parent, the iterable itself.\n          var part = `${node.parent.name}[${node.name}]`;\n          pathParts.push(part);\n          node = node.parent;\n        } else {\n          pathParts.unshift(node.name);\n        }\n\n        node = node.parent;\n      }\n\n      var messageParts = [pathParts.join('.')];\n\n      while (node !== undefined) {\n        if (node.type === 'outlet' || node.name === '-top-level') {\n          node = node.parent;\n          continue;\n        }\n\n        messageParts.unshift(node.name);\n        node = node.parent;\n      }\n\n      return messageParts.map((part, index) => `${repeatString(' ', index * 2)}${part}`).join('\\n');\n    }\n\n    reset() {\n      if (this.stack.size !== 0) {\n        // We probably encountered an error during the rendering loop. This will\n        // likely trigger undefined behavior and memory leaks as the error left\n        // things in an inconsistent state. It is recommended that the user\n        // refresh the page.\n        // TODO: We could warn here? But this happens all the time in our tests?\n        while (!this.stack.isEmpty()) {\n          this.stack.pop();\n        }\n      }\n    }\n\n    enter(state) {\n      this.stack.push(state);\n    }\n\n    exit() {\n      (true && !(this.stack.size !== 0) && (0, _debug.assert)('BUG: unbalanced pop', this.stack.size !== 0));\n      this.stack.pop();\n    }\n\n    nodeFor(state) {\n      return (0, _util.expect)(this.nodes.get(state), 'BUG: missing node');\n    }\n\n    appendChild(node, state) {\n      (true && !(!this.refs.has(state)) && (0, _debug.assert)('BUG: child already appended', !this.refs.has(state)));\n      var parent = this.stack.current;\n      var ref = new Ref(state);\n      this.refs.set(state, ref);\n\n      if (parent) {\n        var parentNode = this.nodeFor(parent);\n        parentNode.refs.add(ref);\n        node.parent = parentNode;\n      } else {\n        this.roots.add(ref);\n      }\n    }\n\n    captureRefs(refs) {\n      var captured = [];\n      refs.forEach(ref => {\n        var state = ref.get();\n\n        if (state) {\n          captured.push(this.captureNode(`render-node:${ref.id}`, state));\n        } else {\n          refs.delete(ref);\n        }\n      });\n      return captured;\n    }\n\n    captureNode(id, state) {\n      var node = this.nodeFor(state);\n      var {\n        type,\n        name,\n        args,\n        instance,\n        refs\n      } = node;\n      var template = this.captureTemplate(node);\n      var bounds = this.captureBounds(node);\n      var children = this.captureRefs(refs);\n      return {\n        id,\n        type,\n        name,\n        args: args.value(),\n        instance,\n        template,\n        bounds,\n        children\n      };\n    }\n\n    captureTemplate({\n      template\n    }) {\n      return template && (0, _util.unwrapTemplate)(template).referrer.moduleName || null;\n    }\n\n    captureBounds(node) {\n      var bounds = (0, _util.expect)(node.bounds, 'BUG: missing bounds');\n      var parentElement = bounds.parentElement();\n      var firstNode = bounds.firstNode();\n      var lastNode = bounds.lastNode();\n      return {\n        parentElement,\n        firstNode,\n        lastNode\n      };\n    }\n\n  }\n  /**\n  @module ember\n  */\n\n  /**\n    The `{{#each}}` helper loops over elements in a collection. It is an extension\n    of the base Handlebars `{{#each}}` helper.\n  \n    The default behavior of `{{#each}}` is to yield its inner block once for every\n    item in an array passing the item as the first block parameter.\n  \n    Assuming the `@developers` argument contains this array:\n  \n    ```javascript\n    [{ name: 'Yehuda' },{ name: 'Tom' }, { name: 'Paul' }];\n    ```\n  \n    ```handlebars\n    <ul>\n      {{#each @developers as |person|}}\n        <li>Hello, {{person.name}}!</li>\n      {{/each}}\n    </ul>\n    ```\n  \n    The same rules apply to arrays of primitives.\n  \n    ```javascript\n    ['Yehuda', 'Tom', 'Paul']\n    ```\n  \n    ```handlebars\n    <ul>\n      {{#each @developerNames as |name|}}\n        <li>Hello, {{name}}!</li>\n      {{/each}}\n    </ul>\n    ```\n  \n    During iteration, the index of each item in the array is provided as a second block\n    parameter.\n  \n    ```handlebars\n    <ul>\n      {{#each @developers as |person index|}}\n        <li>Hello, {{person.name}}! You're number {{index}} in line</li>\n      {{/each}}\n    </ul>\n    ```\n  \n    ### Specifying Keys\n  \n    In order to improve rendering speed, Ember will try to reuse the DOM elements\n    where possible. Specifically, if the same item is present in the array both\n    before and after the change, its DOM output will be reused.\n  \n    The `key` option is used to tell Ember how to determine if the items in the\n    array being iterated over with `{{#each}}` has changed between renders. By\n    default the item's object identity is used.\n  \n    This is usually sufficient, so in most cases, the `key` option is simply not\n    needed. However, in some rare cases, the objects' identities may change even\n    though they represent the same underlying data.\n  \n    For example:\n  \n    ```javascript\n    people.map(person => {\n      return { ...person, type: 'developer' };\n    });\n    ```\n  \n    In this case, each time the `people` array is `map`-ed over, it will produce\n    an new array with completely different objects between renders. In these cases,\n    you can help Ember determine how these objects related to each other with the\n    `key` option:\n  \n    ```handlebars\n    <ul>\n      {{#each @developers key=\"name\" as |person|}}\n        <li>Hello, {{person.name}}!</li>\n      {{/each}}\n    </ul>\n    ```\n  \n    By doing so, Ember will use the value of the property specified (`person.name`\n    in the example) to find a \"match\" from the previous render. That is, if Ember\n    has previously seen an object from the `@developers` array with a matching\n    name, its DOM elements will be re-used.\n  \n    ### {{else}} condition\n  \n    `{{#each}}` can have a matching `{{else}}`. The contents of this block will render\n    if the collection is empty.\n  \n    ```handlebars\n    <ul>\n      {{#each @developers as |person|}}\n        <li>{{person.name}} is available!</li>\n      {{else}}\n        <li>Sorry, nobody is available for this task.</li>\n      {{/each}}\n    </ul>\n    ```\n  \n    @method each\n    @for Ember.Templates.helpers\n    @public\n   */\n\n  /**\n    The `{{each-in}}` helper loops over properties on an object.\n  \n    For example, given this component definition:\n  \n    ```app/components/developer-details.js\n    import Component from '@glimmer/component';\n    import { tracked } from '@glimmer/tracking';\n  \n    export default class extends Component {\n      @tracked developer = {\n        \"name\": \"Shelly Sails\",\n        \"age\": 42\n      };\n    }\n    ```\n  \n    This template would display all properties on the `developer`\n    object in a list:\n  \n    ```app/components/developer-details.hbs\n    <ul>\n      {{#each-in this.developer as |key value|}}\n        <li>{{key}}: {{value}}</li>\n      {{/each-in}}\n    </ul>\n    ```\n  \n    Outputting their name and age.\n  \n    @method each-in\n    @for Ember.Templates.helpers\n    @public\n    @since 2.1.0\n  */\n\n\n  class EachInReference {\n    constructor(inner) {\n      this.inner = inner;\n      this.valueTag = (0, _validator.createUpdatableTag)();\n      this.tag = (0, _validator.combine)([inner.tag, this.valueTag]);\n    }\n\n    value() {\n      var iterable = this.inner.value();\n      var tag = (0, _metal.tagForObject)(iterable);\n\n      if ((0, _utils.isProxy)(iterable)) {\n        // this is because the each-in doesn't actually get(proxy, 'key') but bypasses it\n        // and the proxy's tag is lazy updated on access\n        iterable = (0, _runtime._contentFor)(iterable);\n      }\n\n      (0, _validator.updateTag)(this.valueTag, tag);\n      return new EachInWrapper(iterable);\n    }\n\n    get(key) {\n      return this.inner.get(key);\n    }\n\n  }\n\n  class EachInWrapper {\n    constructor(inner) {\n      this.inner = inner;\n    }\n\n  }\n\n  function eachIn(args) {\n    return new EachInReference(args.positional.at(0));\n  }\n\n  function toIterator(iterable) {\n    if (iterable instanceof EachInWrapper) {\n      return toEachInIterator(iterable.inner);\n    } else {\n      return toEachIterator(iterable);\n    }\n  }\n\n  function toEachInIterator(iterable) {\n    if (!isIndexable(iterable)) {\n      return null;\n    }\n\n    if (Array.isArray(iterable) || (0, _utils.isEmberArray)(iterable)) {\n      return ObjectIterator.fromIndexable(iterable);\n    } else if (_utils.HAS_NATIVE_SYMBOL && isNativeIterable(iterable)) {\n      return MapLikeNativeIterator.from(iterable);\n    } else if (hasForEach(iterable)) {\n      return ObjectIterator.fromForEachable(iterable);\n    } else {\n      return ObjectIterator.fromIndexable(iterable);\n    }\n  }\n\n  function toEachIterator(iterable) {\n    if (!(0, _utils.isObject)(iterable)) {\n      return null;\n    }\n\n    if (Array.isArray(iterable)) {\n      return ArrayIterator.from(iterable);\n    } else if ((0, _utils.isEmberArray)(iterable)) {\n      return EmberArrayIterator.from(iterable);\n    } else if (_utils.HAS_NATIVE_SYMBOL && isNativeIterable(iterable)) {\n      return ArrayLikeNativeIterator.from(iterable);\n    } else if (hasForEach(iterable)) {\n      return ArrayIterator.fromForEachable(iterable);\n    } else {\n      return null;\n    }\n  }\n\n  class BoundedIterator {\n    constructor(length) {\n      this.length = length;\n      this.position = 0;\n    }\n\n    isEmpty() {\n      return false;\n    }\n\n    memoFor(position) {\n      return position;\n    }\n\n    next() {\n      var {\n        length,\n        position\n      } = this;\n\n      if (position >= length) {\n        return null;\n      }\n\n      var value = this.valueFor(position);\n      var memo = this.memoFor(position);\n      this.position++;\n      return {\n        value,\n        memo\n      };\n    }\n\n  }\n\n  class ArrayIterator extends BoundedIterator {\n    constructor(array) {\n      super(array.length);\n      this.array = array;\n    }\n\n    static from(iterable) {\n      return iterable.length > 0 ? new this(iterable) : null;\n    }\n\n    static fromForEachable(object) {\n      var array = [];\n      object.forEach(item => array.push(item));\n      return this.from(array);\n    }\n\n    valueFor(position) {\n      return this.array[position];\n    }\n\n  }\n\n  class EmberArrayIterator extends BoundedIterator {\n    constructor(array) {\n      super(array.length);\n      this.array = array;\n    }\n\n    static from(iterable) {\n      return iterable.length > 0 ? new this(iterable) : null;\n    }\n\n    valueFor(position) {\n      return (0, _metal.objectAt)(this.array, position);\n    }\n\n  }\n\n  class ObjectIterator extends BoundedIterator {\n    constructor(keys, values) {\n      super(values.length);\n      this.keys = keys;\n      this.values = values;\n    }\n\n    static fromIndexable(obj) {\n      var keys = Object.keys(obj);\n      var {\n        length\n      } = keys;\n\n      if (length === 0) {\n        return null;\n      } else {\n        var values = [];\n\n        for (var i = 0; i < length; i++) {\n          var value = void 0;\n          var key = keys[i];\n          value = obj[key]; // Add the tag of the returned value if it is an array, since arrays\n          // should always cause updates if they are consumed and then changed\n\n          if ((0, _validator.isTracking)()) {\n            (0, _validator.consumeTag)((0, _metal.tagForProperty)(obj, key));\n\n            if (Array.isArray(value) || (0, _utils.isEmberArray)(value)) {\n              (0, _validator.consumeTag)((0, _metal.tagForProperty)(value, '[]'));\n            }\n          }\n\n          values.push(value);\n        }\n\n        return new this(keys, values);\n      }\n    }\n\n    static fromForEachable(obj) {\n      var keys = [];\n      var values = [];\n      var length = 0;\n      var isMapLike = false; // Not using an arrow function here so we can get an accurate `arguments`\n\n      obj.forEach(function (value, key) {\n        isMapLike = isMapLike || arguments.length >= 2;\n\n        if (isMapLike) {\n          keys.push(key);\n        }\n\n        values.push(value);\n        length++;\n      });\n\n      if (length === 0) {\n        return null;\n      } else if (isMapLike) {\n        return new this(keys, values);\n      } else {\n        return new ArrayIterator(values);\n      }\n    }\n\n    valueFor(position) {\n      return this.values[position];\n    }\n\n    memoFor(position) {\n      return this.keys[position];\n    }\n\n  }\n\n  class NativeIterator {\n    constructor(iterable, result) {\n      this.iterable = iterable;\n      this.result = result;\n      this.position = 0;\n    }\n\n    static from(iterable) {\n      var iterator = iterable[Symbol.iterator]();\n      var result = iterator.next();\n      var {\n        done\n      } = result;\n\n      if (done) {\n        return null;\n      } else {\n        return new this(iterator, result);\n      }\n    }\n\n    isEmpty() {\n      return false;\n    }\n\n    next() {\n      var {\n        iterable,\n        result,\n        position\n      } = this;\n\n      if (result.done) {\n        return null;\n      }\n\n      var value = this.valueFor(result, position);\n      var memo = this.memoFor(result, position);\n      this.position++;\n      this.result = iterable.next();\n      return {\n        value,\n        memo\n      };\n    }\n\n  }\n\n  class ArrayLikeNativeIterator extends NativeIterator {\n    valueFor(result) {\n      return result.value;\n    }\n\n    memoFor(_result, position) {\n      return position;\n    }\n\n  }\n\n  class MapLikeNativeIterator extends NativeIterator {\n    valueFor(result) {\n      return result.value[1];\n    }\n\n    memoFor(result) {\n      return result.value[0];\n    }\n\n  }\n\n  function hasForEach(value) {\n    return typeof value['forEach'] === 'function';\n  }\n\n  function isNativeIterable(value) {\n    return typeof value[Symbol.iterator] === 'function';\n  }\n\n  function isIndexable(value) {\n    return value !== null && (typeof value === 'object' || typeof value === 'function');\n  }\n\n  function toBool(predicate) {\n    if ((0, _utils.isProxy)(predicate)) {\n      return Boolean((0, _metal.get)(predicate, 'isTruthy'));\n    } else if ((0, _runtime.isArray)(predicate)) {\n      return predicate.length !== 0;\n    } else {\n      return Boolean(predicate);\n    }\n  }\n\n  class EmberEnvironmentExtra {\n    constructor(owner) {\n      this.owner = owner;\n\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        this._debugRenderTree = new DebugRenderTree();\n      }\n    }\n\n    get debugRenderTree() {\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        return this._debugRenderTree;\n      } else {\n        throw new Error(\"Can't access debug render tree outside of the inspector (_DEBUG_RENDER_TREE flag is disabled)\");\n      }\n    }\n\n    begin() {\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        this.debugRenderTree.begin();\n      }\n    }\n\n    commit() {\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        this.debugRenderTree.commit();\n      }\n    }\n\n  }\n\n  class EmberEnvironmentDelegate {\n    constructor(owner, isInteractive) {\n      this.toBool = toBool;\n      this.toIterator = toIterator;\n      this.getPath = _metal.get;\n      this.setPath = _metal.set;\n      this.extra = new EmberEnvironmentExtra(owner);\n      this.isInteractive = isInteractive;\n      installProtocolForURL(this);\n    } // this gets clobbered by installPlatformSpecificProtocolForURL\n    // it really should just delegate to a platform specific injection\n\n\n    protocolForURL(s) {\n      return s;\n    }\n\n    getTemplatePathDebugContext(pathRef) {\n      var stack = this.extra.debugRenderTree.logRenderStackForPath(pathRef);\n      return `While rendering:\\n\\n${stack}`;\n    }\n\n    setTemplatePathDebugContext(pathRef, desc, parentRef) {\n      var type = 'root';\n\n      if (pathRef instanceof _reference.IterationItemReference) {\n        type = 'iterator';\n      } else if (pathRef instanceof _reference.PropertyReference) {\n        type = 'property';\n      }\n\n      this.extra.debugRenderTree.createPath(pathRef, desc, type, parentRef);\n    }\n\n    onTransactionBegin() {\n      this.extra.begin();\n    }\n\n    onTransactionCommit() {\n      this.extra.commit();\n    }\n\n  }\n\n  if (true\n  /* DEBUG */\n  ) {\n    class StyleAttributeManager extends _runtime2.SimpleDynamicAttribute {\n      set(dom, value, env) {\n        (true && (0, _debug.warn)((0, _views.constructStyleDeprecationMessage)(value), (() => {\n          if (value === null || value === undefined || isHTMLSafe(value)) {\n            return true;\n          }\n\n          return false;\n        })(), {\n          id: 'ember-htmlbars.style-xss-warning'\n        }));\n        super.set(dom, value, env);\n      }\n\n      update(value, env) {\n        (true && (0, _debug.warn)((0, _views.constructStyleDeprecationMessage)(value), (() => {\n          if (value === null || value === undefined || isHTMLSafe(value)) {\n            return true;\n          }\n\n          return false;\n        })(), {\n          id: 'ember-htmlbars.style-xss-warning'\n        }));\n        super.update(value, env);\n      }\n\n    }\n\n    EmberEnvironmentDelegate.prototype.attributeFor = function (element, attribute, isTrusting, namespace) {\n      if (attribute === 'style' && !isTrusting) {\n        return new StyleAttributeManager({\n          element,\n          name: attribute,\n          namespace\n        });\n      }\n\n      return (0, _runtime2.dynamicAttribute)(element, attribute, namespace);\n    };\n  }\n\n  var CAPABILITIES$1 = {\n    dynamicLayout: false,\n    dynamicTag: false,\n    prepareArgs: false,\n    createArgs: true,\n    attributeHook: false,\n    elementHook: false,\n    createCaller: false,\n    dynamicScope: true,\n    updateHook: true,\n    createInstance: true,\n    wrapped: false,\n    willDestroy: false\n  };\n\n  function capabilities(managerAPI, options = {}) {\n    (true && !(managerAPI === '3.4' || managerAPI === '3.13') && (0, _debug.assert)('Invalid component manager compatibility specified', managerAPI === '3.4' || managerAPI === '3.13'));\n    var updateHook = true;\n    {\n      updateHook = managerAPI === '3.13' ? Boolean(options.updateHook) : true;\n    }\n    return {\n      asyncLifeCycleCallbacks: Boolean(options.asyncLifecycleCallbacks),\n      destructor: Boolean(options.destructor),\n      updateHook\n    };\n  }\n\n  function hasAsyncLifeCycleCallbacks(delegate) {\n    return delegate.capabilities.asyncLifeCycleCallbacks;\n  }\n\n  function hasUpdateHook(delegate) {\n    return delegate.capabilities.updateHook;\n  }\n\n  function hasAsyncUpdateHook(delegate) {\n    return hasAsyncLifeCycleCallbacks(delegate) && hasUpdateHook(delegate);\n  }\n\n  function hasDestructors(delegate) {\n    return delegate.capabilities.destructor;\n  }\n  /**\n    The CustomComponentManager allows addons to provide custom component\n    implementations that integrate seamlessly into Ember. This is accomplished\n    through a delegate, registered with the custom component manager, which\n    implements a set of hooks that determine component behavior.\n  \n    To create a custom component manager, instantiate a new CustomComponentManager\n    class and pass the delegate as the first argument:\n  \n    ```js\n    let manager = new CustomComponentManager({\n      // ...delegate implementation...\n    });\n    ```\n  \n    ## Delegate Hooks\n  \n    Throughout the lifecycle of a component, the component manager will invoke\n    delegate hooks that are responsible for surfacing those lifecycle changes to\n    the end developer.\n  \n    * `create()` - invoked when a new instance of a component should be created\n    * `update()` - invoked when the arguments passed to a component change\n    * `getContext()` - returns the object that should be\n  */\n\n\n  class CustomComponentManager extends AbstractManager {\n    create(env, definition, args) {\n      var {\n        delegate\n      } = definition;\n      var capturedArgs = args.capture();\n      var namedArgs = capturedArgs.named;\n      var value;\n      var namedArgsProxy = {};\n      {\n        var getTag = key => {\n          return namedArgs.get(key).tag;\n        };\n\n        if (_utils.HAS_NATIVE_PROXY) {\n          var handler = {\n            get(_target, prop) {\n              if (namedArgs.has(prop)) {\n                var ref = namedArgs.get(prop);\n                (0, _validator.consumeTag)(ref.tag);\n                return ref.value();\n              } else if (prop === _metal.CUSTOM_TAG_FOR) {\n                return getTag;\n              }\n            },\n\n            has(_target, prop) {\n              return namedArgs.has(prop);\n            },\n\n            ownKeys(_target) {\n              return namedArgs.names;\n            },\n\n            getOwnPropertyDescriptor(_target, prop) {\n              (true && !(namedArgs.has(prop)) && (0, _debug.assert)('args proxies do not have real property descriptors, so you should never need to call getOwnPropertyDescriptor yourself. This code exists for enumerability, such as in for-in loops and Object.keys()', namedArgs.has(prop)));\n              return {\n                enumerable: true,\n                configurable: true\n              };\n            }\n\n          };\n\n          if (true\n          /* DEBUG */\n          ) {\n            handler.set = function (_target, prop) {\n              (true && !(false) && (0, _debug.assert)(`You attempted to set ${definition.ComponentClass.class}#${String(prop)} on a components arguments. Component arguments are immutable and cannot be updated directly, they always represent the values that are passed to your component. If you want to set default values, you should use a getter instead`));\n              return false;\n            };\n          }\n\n          namedArgsProxy = new Proxy(namedArgsProxy, handler);\n        } else {\n          Object.defineProperty(namedArgsProxy, _metal.CUSTOM_TAG_FOR, {\n            configurable: false,\n            enumerable: false,\n            value: getTag\n          });\n          namedArgs.names.forEach(name => {\n            Object.defineProperty(namedArgsProxy, name, {\n              enumerable: true,\n              configurable: true,\n\n              get() {\n                var ref = namedArgs.get(name);\n                (0, _validator.consumeTag)(ref.tag);\n                return ref.value();\n              }\n\n            });\n          });\n        }\n\n        value = {\n          named: namedArgsProxy,\n          positional: capturedArgs.positional.value()\n        };\n      }\n      var component = delegate.createComponent(definition.ComponentClass.class, value);\n      var bucket = new CustomComponentState(delegate, component, capturedArgs, env, namedArgsProxy);\n\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        env.extra.debugRenderTree.create(bucket, {\n          type: 'component',\n          name: definition.name,\n          args: args.capture(),\n          instance: component,\n          template: definition.template\n        });\n      }\n\n      return bucket;\n    }\n\n    update(bucket) {\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        bucket.env.extra.debugRenderTree.update(bucket);\n      }\n\n      var {\n        delegate,\n        component,\n        args,\n        namedArgsProxy\n      } = bucket;\n      var value;\n      {\n        value = {\n          named: namedArgsProxy,\n          positional: args.positional.value()\n        };\n      }\n\n      if (hasUpdateHook(delegate)) {\n        delegate.updateComponent(component, value);\n      }\n    }\n\n    didCreate({\n      delegate,\n      component\n    }) {\n      if (hasAsyncLifeCycleCallbacks(delegate)) {\n        delegate.didCreateComponent(component);\n      }\n    }\n\n    didUpdate({\n      delegate,\n      component\n    }) {\n      if (hasAsyncUpdateHook(delegate)) {\n        delegate.didUpdateComponent(component);\n      }\n    }\n\n    getContext({\n      delegate,\n      component\n    }) {\n      delegate.getContext(component);\n    }\n\n    getSelf({\n      env,\n      delegate,\n      component\n    }) {\n      return new _reference.ComponentRootReference(delegate.getContext(component), env);\n    }\n\n    getDestructor(state) {\n      var destructor = null;\n\n      if (hasDestructors(state.delegate)) {\n        destructor = state;\n      }\n\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        var inner = destructor;\n        destructor = {\n          destroy() {\n            state.env.extra.debugRenderTree.willDestroy(state);\n\n            if (inner) {\n              inner.destroy();\n            }\n          }\n\n        };\n      }\n\n      return destructor;\n    }\n\n    getCapabilities({\n      delegate\n    }) {\n      return (0, _polyfills.assign)({}, CAPABILITIES$1, {\n        updateHook: _environment2.ENV._DEBUG_RENDER_TREE || delegate.capabilities.updateHook\n      });\n    }\n\n    getTag({\n      args\n    }) {\n      if ((0, _validator.isConst)(args)) {\n        // returning a const tag skips the update hook (VM BUG?)\n        return (0, _validator.createTag)();\n      } else {\n        return args.tag;\n      }\n    }\n\n    didRenderLayout(bucket, bounds) {\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        bucket.env.extra.debugRenderTree.didRender(bucket, bounds);\n      }\n    }\n\n    didUpdateLayout(bucket, bounds) {\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        bucket.env.extra.debugRenderTree.didRender(bucket, bounds);\n      }\n    }\n\n    getJitStaticLayout(state) {\n      return (0, _util.unwrapTemplate)(state.template).asLayout();\n    }\n\n  }\n\n  var CUSTOM_COMPONENT_MANAGER = new CustomComponentManager();\n  /**\n   * Stores internal state about a component instance after it's been created.\n   */\n\n  class CustomComponentState {\n    constructor(delegate, component, args, env, namedArgsProxy) {\n      this.delegate = delegate;\n      this.component = component;\n      this.args = args;\n      this.env = env;\n      this.namedArgsProxy = namedArgsProxy;\n    }\n\n    destroy() {\n      var {\n        delegate,\n        component\n      } = this;\n\n      if (hasDestructors(delegate)) {\n        delegate.destroyComponent(component);\n      }\n    }\n\n  }\n\n  class CustomManagerDefinition {\n    constructor(name, ComponentClass, delegate, template) {\n      this.name = name;\n      this.ComponentClass = ComponentClass;\n      this.delegate = delegate;\n      this.template = template;\n      this.manager = CUSTOM_COMPONENT_MANAGER;\n      this.state = {\n        name,\n        ComponentClass,\n        template,\n        delegate\n      };\n    }\n\n  }\n\n  class InternalComponentDefinition {\n    constructor(manager, ComponentClass, layout) {\n      this.manager = manager;\n      this.state = {\n        ComponentClass,\n        layout\n      };\n    }\n\n  }\n\n  class InternalManager extends AbstractManager {\n    constructor(owner) {\n      super();\n      this.owner = owner;\n    }\n\n    getJitStaticLayout({\n      layout: template\n    }) {\n      return (0, _util.unwrapTemplate)(template).asLayout();\n    }\n\n  }\n\n  var CAPABILITIES$2 = {\n    dynamicLayout: false,\n    dynamicTag: false,\n    prepareArgs: false,\n    createArgs: _environment2.ENV._DEBUG_RENDER_TREE,\n    attributeHook: false,\n    elementHook: false,\n    createCaller: false,\n    dynamicScope: false,\n    updateHook: _environment2.ENV._DEBUG_RENDER_TREE,\n    createInstance: true,\n    wrapped: false,\n    willDestroy: false\n  };\n\n  class TemplateOnlyComponentManager extends AbstractManager {\n    getJitStaticLayout({\n      template\n    }) {\n      return (0, _util.unwrapTemplate)(template).asLayout();\n    }\n\n    getCapabilities() {\n      return CAPABILITIES$2;\n    }\n\n    create(environment, {\n      name,\n      template\n    }, args) {\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        var bucket = {\n          environment\n        };\n        environment.extra.debugRenderTree.create(bucket, {\n          type: 'component',\n          name: name,\n          args: args.capture(),\n          instance: null,\n          template\n        });\n        return bucket;\n      } else {\n        return null;\n      }\n    }\n\n    getSelf() {\n      return _runtime2.NULL_REFERENCE;\n    }\n\n    getTag() {\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        // returning a const tag skips the update hook (VM BUG?)\n        return (0, _validator.createTag)();\n      } else {\n        // an outlet has no hooks\n        return _validator.CONSTANT_TAG;\n      }\n    }\n\n    getDestructor(bucket) {\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        return {\n          destroy() {\n            bucket.environment.extra.debugRenderTree.willDestroy(bucket);\n          }\n\n        };\n      } else {\n        return null;\n      }\n    }\n\n    didRenderLayout(bucket, bounds) {\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        bucket.environment.extra.debugRenderTree.didRender(bucket, bounds);\n      }\n    }\n\n    update(bucket) {\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        bucket.environment.extra.debugRenderTree.update(bucket);\n      }\n    }\n\n    didUpdateLayout(bucket, bounds) {\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        bucket.environment.extra.debugRenderTree.didRender(bucket, bounds);\n      }\n    }\n\n  }\n\n  var MANAGER = new TemplateOnlyComponentManager();\n\n  class TemplateOnlyComponentDefinition {\n    constructor(name, template) {\n      this.name = name;\n      this.template = template;\n      this.manager = MANAGER;\n    }\n\n    get state() {\n      return this;\n    }\n\n  }\n\n  var helper$1;\n\n  if (true\n  /* DEBUG */\n  ) {\n    class ComponentAssertionReference {\n      constructor(component, message) {\n        this.component = component;\n        this.message = message;\n        this.tag = component.tag;\n      }\n\n      value() {\n        var value = this.component.value();\n        (true && !(typeof value !== 'string') && (0, _debug.assert)(this.message, typeof value !== 'string'));\n        return value;\n      }\n\n      get(property) {\n        return this.component.get(property);\n      }\n\n    }\n\n    helper$1 = args => new ComponentAssertionReference(args.positional.at(0), args.positional.at(1).value());\n  } else {\n    helper$1 = args => args.positional.at(0);\n  }\n\n  var componentAssertionHelper = helper$1;\n\n  function inputTypeHelper({\n    positional\n  }) {\n    var type = positional.at(0).value();\n\n    if (type === 'checkbox') {\n      return '-checkbox';\n    }\n\n    return '-text-field';\n  }\n\n  function inputTypeHelper$1(args, vm) {\n    return new _reference.HelperRootReference(inputTypeHelper, args.capture(), vm.env);\n  }\n\n  function normalizeClass({\n    positional\n  }) {\n    var classNameParts = positional.at(0).value().split('.');\n    var className = classNameParts[classNameParts.length - 1];\n    var value = positional.at(1).value();\n\n    if (value === true) {\n      return (0, _string.dasherize)(className);\n    } else if (!value && value !== 0) {\n      return '';\n    } else {\n      return String(value);\n    }\n  }\n\n  function normalizeClassHelper(args, vm) {\n    return new _reference.HelperRootReference(normalizeClass, args.capture(), vm.env);\n  }\n  /**\n  @module ember\n  */\n\n  /**\n    This reference is used to get the `[]` tag of iterables, so we can trigger\n    updates to `{{each}}` when it changes. It is put into place by a template\n    transform at build time, similar to the (-each-in) helper\n  */\n\n\n  class TrackArrayReference {\n    constructor(inner) {\n      this.inner = inner;\n      this.valueTag = (0, _validator.createUpdatableTag)();\n      this.tag = (0, _validator.combine)([inner.tag, this.valueTag]);\n    }\n\n    value() {\n      var iterable = this.inner.value();\n      var tag = (0, _metal.tagForProperty)(iterable, '[]');\n      (0, _validator.updateTag)(this.valueTag, tag);\n      return iterable;\n    }\n\n    get(key) {\n      return this.inner.get(key);\n    }\n\n  }\n\n  function trackArray(args) {\n    return new TrackArrayReference(args.positional.at(0));\n  }\n  /**\n  @module ember\n  */\n\n  /**\n     Use the `{{array}}` helper to create an array to pass as an option to your\n     components.\n  \n     ```handlebars\n     <MyComponent @people={{array\n       'Tom Dade'\n       'Yehuda Katz'\n       this.myOtherPerson}}\n     />\n     ```\n      or\n     ```handlebars\n     {{my-component people=(array\n       'Tom Dade'\n       'Yehuda Katz'\n       this.myOtherPerson)\n     }}\n     ```\n  \n     Would result in an object such as:\n  \n     ```js\n     ['Tom Date', 'Yehuda Katz', this.get('myOtherPerson')]\n     ```\n  \n     Where the 3rd item in the array is bound to updates of the `myOtherPerson` property.\n  \n     @method array\n     @for Ember.Templates.helpers\n     @param {Array} options\n     @return {Array} Array\n     @since 3.8.0\n     @public\n   */\n\n\n  function array(args) {\n    return args.positional.capture();\n  }\n\n  var isEmpty = value => {\n    return value === null || value === undefined || typeof value.toString !== 'function';\n  };\n\n  var normalizeTextValue = value => {\n    if (isEmpty(value)) {\n      return '';\n    }\n\n    return String(value);\n  };\n  /**\n  @module ember\n  */\n\n  /**\n    Concatenates the given arguments into a string.\n  \n    Example:\n  \n    ```handlebars\n    {{some-component name=(concat firstName \" \" lastName)}}\n  \n    {{! would pass name=\"<first name value> <last name value>\" to the component}}\n    ```\n  \n    or for angle bracket invocation, you actually don't need concat at all.\n  \n    ```handlebars\n    <SomeComponent @name=\"{{firstName}} {{lastName}}\" />\n    ```\n  \n    @public\n    @method concat\n    @for Ember.Templates.helpers\n    @since 1.13.0\n  */\n\n\n  function concat({\n    positional\n  }) {\n    return positional.value().map(normalizeTextValue).join('');\n  }\n\n  function concat$1(args, vm) {\n    return new _reference.HelperRootReference(concat, args.capture(), vm.env);\n  }\n\n  function buildUntouchableThis(source) {\n    var context = null;\n\n    if (true\n    /* DEBUG */\n    && _utils.HAS_NATIVE_PROXY) {\n      var assertOnProperty = property => {\n        (true && !(false) && (0, _debug.assert)(`You accessed \\`this.${String(property)}\\` from a function passed to the ${source}, but the function itself was not bound to a valid \\`this\\` context. Consider updating to usage of \\`@action\\`.`));\n      };\n\n      context = new Proxy({}, {\n        get(_target, property) {\n          assertOnProperty(property);\n        },\n\n        set(_target, property) {\n          assertOnProperty(property);\n          return false;\n        },\n\n        has(_target, property) {\n          assertOnProperty(property);\n          return false;\n        }\n\n      });\n    }\n\n    return context;\n  }\n\n  var context = buildUntouchableThis('`fn` helper');\n  /**\n  @module ember\n  */\n\n  /**\n    The `fn` helper allows you to ensure a function that you are passing off\n    to another component, helper, or modifier has access to arguments that are\n    available in the template.\n  \n    For example, if you have an `each` helper looping over a number of items, you\n    may need to pass a function that expects to receive the item as an argument\n    to a component invoked within the loop. Here's how you could use the `fn`\n    helper to pass both the function and its arguments together:\n  \n      ```app/templates/components/items-listing.hbs\n    {{#each @items as |item|}}\n      <DisplayItem @item=item @select={{fn this.handleSelected item}} />\n    {{/each}}\n    ```\n  \n    ```app/components/items-list.js\n    import Component from '@glimmer/component';\n    import { action } from '@ember/object';\n  \n    export default class ItemsList extends Component {\n      @action\n      handleSelected(item) {\n        // ...snip...\n      }\n    }\n    ```\n  \n    In this case the `display-item` component will receive a normal function\n    that it can invoke. When it invokes the function, the `handleSelected`\n    function will receive the `item` and any arguments passed, thanks to the\n    `fn` helper.\n  \n    Let's take look at what that means in a couple circumstances:\n  \n    - When invoked as `this.args.select()` the `handleSelected` function will\n      receive the `item` from the loop as its first and only argument.\n    - When invoked as `this.args.select('foo')` the `handleSelected` function\n      will receive the `item` from the loop as its first argument and the\n      string `'foo'` as its second argument.\n  \n    In the example above, we used `@action` to ensure that `handleSelected` is\n    properly bound to the `items-list`, but let's explore what happens if we\n    left out `@action`:\n  \n    ```app/components/items-list.js\n    import Component from '@glimmer/component';\n  \n    export default class ItemsList extends Component {\n      handleSelected(item) {\n        // ...snip...\n      }\n    }\n    ```\n  \n    In this example, when `handleSelected` is invoked inside the `display-item`\n    component, it will **not** have access to the component instance. In other\n    words, it will have no `this` context, so please make sure your functions\n    are bound (via `@action` or other means) before passing into `fn`!\n  \n    See also [partial application](https://en.wikipedia.org/wiki/Partial_application).\n  \n    @method fn\n    @for Ember.Templates.helpers\n    @public\n    @since 3.11.0\n  */\n\n  function fn({\n    positional\n  }) {\n    var callbackRef = positional.at(0);\n\n    if (true\n    /* DEBUG */\n    && typeof callbackRef[INVOKE] !== 'function') {\n      var callback = callbackRef.value();\n      (true && !(typeof callback === 'function') && (0, _debug.assert)(`You must pass a function as the \\`fn\\` helpers first argument, you passed ${callback}`, typeof callback === 'function'));\n    }\n\n    return (...invocationArgs) => {\n      var [fn, ...args] = positional.value();\n\n      if (typeof callbackRef[INVOKE] === 'function') {\n        // references with the INVOKE symbol expect the function behind\n        // the symbol to be bound to the reference\n        return callbackRef[INVOKE](...args, ...invocationArgs);\n      } else {\n        return fn.call(context, ...args, ...invocationArgs);\n      }\n    };\n  }\n\n  function fn$1(args, vm) {\n    return new _reference.HelperRootReference(fn, args.capture(), vm.env);\n  }\n  /**\n  @module ember\n  */\n\n  /**\n    Dynamically look up a property on an object. The second argument to `{{get}}`\n    should have a string value, although it can be bound.\n  \n    For example, these two usages are equivalent:\n  \n    ```app/components/developer-detail.js\n    import Component from '@glimmer/component';\n    import { tracked } from '@glimmer/tracking';\n  \n    export default class extends Component {\n      @tracked developer = {\n        name: \"Sandi Metz\",\n        language: \"Ruby\"\n      }\n    }\n    ```\n  \n    ```handlebars\n    {{this.developer.name}}\n    {{get this.developer \"name\"}}\n    ```\n  \n    If there were several facts about a person, the `{{get}}` helper can dynamically\n    pick one:\n  \n    ```app/templates/application.hbs\n    <DeveloperDetail @factName=\"language\" />\n    ```\n  \n    ```handlebars\n    {{get this.developer @factName}}\n    ```\n  \n    For a more complex example, this template would allow the user to switch\n    between showing the user's height and weight with a click:\n  \n    ```app/components/developer-detail.js\n    import Component from '@glimmer/component';\n    import { tracked } from '@glimmer/tracking';\n  \n    export default class extends Component {\n      @tracked developer = {\n        name: \"Sandi Metz\",\n        language: \"Ruby\"\n      }\n  \n      @tracked currentFact = 'name'\n  \n      @action\n      showFact(fact) {\n        this.currentFact = fact;\n      }\n    }\n    ```\n  \n    ```app/components/developer-detail.js\n    {{get this.developer this.currentFact}}\n  \n    <button {{on 'click' (fn this.showFact \"name\")}}>Show name</button>\n    <button {{on 'click' (fn this.showFact \"language\")}}>Show language</button>\n    ```\n  \n    The `{{get}}` helper can also respect mutable values itself. For example:\n  \n    ```app/components/developer-detail.js\n    <Input @value={{mut (get this.person this.currentFact)}} />\n  \n    <button {{on 'click' (fn this.showFact \"name\")}}>Show name</button>\n    <button {{on 'click' (fn this.showFact \"language\")}}>Show language</button>\n    ```\n  \n    Would allow the user to swap what fact is being displayed, and also edit\n    that fact via a two-way mutable binding.\n  \n    @public\n    @method get\n    @for Ember.Templates.helpers\n    @since 2.1.0\n   */\n\n\n  function get$1(args, vm) {\n    var sourceReference = args.positional.at(0);\n    var pathReference = args.positional.at(1);\n\n    if ((0, _validator.isConst)(pathReference)) {\n      // Since the path is constant, we can create a normal chain of property\n      // references. The source reference will update like normal, and all of the\n      // child references will update accordingly.\n      var path = pathReference.value();\n\n      if (path === undefined || path === null || path === '') {\n        return _runtime2.NULL_REFERENCE;\n      } else if (typeof path === 'string' && path.indexOf('.') > -1) {\n        return referenceFromParts(sourceReference, path.split('.'));\n      } else {\n        return sourceReference.get(String(path));\n      }\n    } else {\n      return new GetHelperRootReference(args.capture(), vm.env);\n    }\n  }\n\n  function get$2({\n    positional\n  }) {\n    var source = positional.at(0).value();\n\n    if ((0, _utils.isObject)(source)) {\n      var path = positional.at(1).value();\n      return (0, _metal.get)(source, String(path));\n    }\n  }\n\n  class GetHelperRootReference extends _reference.HelperRootReference {\n    constructor(args, env) {\n      super(get$2, args, env);\n      this.sourceReference = args.positional.at(0);\n      this.pathReference = args.positional.at(1);\n    }\n\n    [_reference.UPDATE_REFERENCED_VALUE](value) {\n      var source = this.sourceReference.value();\n\n      if ((0, _utils.isObject)(source)) {\n        var path = String(this.pathReference.value());\n        (0, _metal.set)(source, path, value);\n      }\n    }\n\n  }\n  /**\n  @module ember\n  */\n\n  /**\n     Use the `{{hash}}` helper to create a hash to pass as an option to your\n     components. This is specially useful for contextual components where you can\n     just yield a hash:\n  \n     ```handlebars\n     {{yield (hash\n        name='Sarah'\n        title=office\n     )}}\n     ```\n  \n     Would result in an object such as:\n  \n     ```js\n     { name: 'Sarah', title: this.get('office') }\n     ```\n  \n     Where the `title` is bound to updates of the `office` property.\n  \n     Note that the hash is an empty object with no prototype chain, therefore\n     common methods like `toString` are not available in the resulting hash.\n     If you need to use such a method, you can use the `call` or `apply`\n     approach:\n  \n     ```js\n     function toString(obj) {\n       return Object.prototype.toString.apply(obj);\n     }\n     ```\n  \n     @method hash\n     @for Ember.Templates.helpers\n     @param {Object} options\n     @return {Object} Hash\n     @since 2.3.0\n     @public\n   */\n\n\n  function hash(args) {\n    return args.named.capture();\n  }\n  /**\n  @module ember\n  */\n\n\n  function ifHelper({\n    positional\n  }) {\n    (true && !(positional.length === 3 || positional.length === 2) && (0, _debug.assert)('The inline form of the `if` helper expects two or three arguments, e.g. `{{if trialExpired \"Expired\" expiryDate}}`.', positional.length === 3 || positional.length === 2));\n    var condition = positional.at(0);\n    var truthyValue = positional.at(1);\n    var falsyValue = positional.at(2);\n\n    if (toBool(condition.value()) === true) {\n      return truthyValue.value();\n    } else {\n      return falsyValue !== undefined ? falsyValue.value() : undefined;\n    }\n  }\n\n  function unless({\n    positional\n  }) {\n    (true && !(positional.length === 3 || positional.length === 2) && (0, _debug.assert)('The inline form of the `unless` helper expects two or three arguments, e.g. `{{unless isFirstLogin \"Welcome back!\"}}`.', positional.length === 3 || positional.length === 2));\n    var condition = positional.at(0);\n    var truthyValue = positional.at(2);\n    var falsyValue = positional.at(1);\n\n    if (toBool(condition.value()) === true) {\n      return truthyValue !== undefined ? truthyValue.value() : undefined;\n    } else {\n      return falsyValue.value();\n    }\n  }\n  /**\n    The `if` helper allows you to conditionally render one of two branches,\n    depending on the \"truthiness\" of a property.\n    For example the following values are all falsey: `false`, `undefined`, `null`, `\"\"`, `0`, `NaN` or an empty array.\n  \n    This helper has two forms, block and inline.\n  \n    ## Block form\n  \n    You can use the block form of `if` to conditionally render a section of the template.\n  \n    To use it, pass the conditional value to the `if` helper,\n    using the block form to wrap the section of template you want to conditionally render.\n    Like so:\n  \n    ```app/templates/application.hbs\n    <Weather />\n    ```\n  \n    ```app/components/weather.hbs\n    {{! will not render because greeting is undefined}}\n    {{#if @isRaining}}\n      Yes, grab an umbrella!\n    {{/if}}\n    ```\n  \n    You can also define what to show if the property is falsey by using\n    the `else` helper.\n  \n    ```app/components/weather.hbs\n    {{#if @isRaining}}\n      Yes, grab an umbrella!\n    {{else}}\n      No, it's lovely outside!\n    {{/if}}\n    ```\n  \n    You are also able to combine `else` and `if` helpers to create more complex\n    conditional logic.\n  \n    For the following template:\n  \n     ```app/components/weather.hbs\n    {{#if @isRaining}}\n      Yes, grab an umbrella!\n    {{else if @isCold}}\n      Grab a coat, it's chilly!\n    {{else}}\n      No, it's lovely outside!\n    {{/if}}\n    ```\n  \n    If you call it by saying `isCold` is true:\n  \n    ```app/templates/application.hbs\n    <Weather @isCold={{true}} />\n    ```\n  \n    Then `Grab a coat, it's chilly!` will be rendered.\n  \n    ## Inline form\n  \n    The inline `if` helper conditionally renders a single property or string.\n  \n    In this form, the `if` helper receives three arguments, the conditional value,\n    the value to render when truthy, and the value to render when falsey.\n  \n    For example, if `useLongGreeting` is truthy, the following:\n  \n    ```app/templates/application.hbs\n    <Greeting @useLongGreeting={{true}} />\n    ```\n  \n    ```app/components/greeting.hbs\n    {{if @useLongGreeting \"Hello\" \"Hi\"}} Alex\n    ```\n  \n    Will render:\n  \n    ```html\n    Hello Alex\n    ```\n  \n    One detail to keep in mind is that both branches of the `if` helper will be evaluated,\n    so if you have `{{if condition \"foo\" (expensive-operation \"bar\")`,\n    `expensive-operation` will always calculate.\n  \n    @method if\n    @for Ember.Templates.helpers\n    @public\n  */\n\n\n  function inlineIf(args, vm) {\n    return new _reference.HelperRootReference(ifHelper, args.capture(), vm.env);\n  }\n  /**\n    The `unless` helper is the inverse of the `if` helper. It displays if a value\n    is falsey (\"not true\" or \"is false\"). Example values that will display with\n    `unless`: `false`, `undefined`, `null`, `\"\"`, `0`, `NaN` or an empty array.\n  \n    ## Inline form\n  \n    The inline `unless` helper conditionally renders a single property or string.\n    This helper acts like a ternary operator. If the first property is falsy,\n    the second argument will be displayed, otherwise, the third argument will be\n    displayed\n  \n    For example, if you pass a falsey `useLongGreeting` to the `Greeting` component:\n  \n    ```app/templates/application.hbs\n    <Greeting @useLongGreeting={{false}} />\n    ```\n  \n    ```app/components/greeting.hbs\n    {{unless @useLongGreeting \"Hi\" \"Hello\"}} Ben\n    ```\n  \n    Then it will display:\n  \n    ```html\n    Hi Ben\n    ```\n  \n    ## Block form\n  \n    Like the `if` helper, the `unless` helper also has a block form.\n  \n    The following will not render anything:\n  \n    ```app/templates/application.hbs\n    <Greeting />\n    ```\n  \n    ```app/components/greeting.hbs\n    {{#unless @greeting}}\n      No greeting was found. Why not set one?\n    {{/unless}}\n    ```\n  \n    You can also use an `else` helper with the `unless` block. The\n    `else` will display if the value is truthy.\n  \n    If you have the following component:\n  \n    ```app/components/logged-in.hbs\n    {{#unless @userData}}\n      Please login.\n    {{else}}\n      Welcome back!\n    {{/unless}}\n    ```\n  \n    Calling it with a truthy `userData`:\n  \n    ```app/templates/application.hbs\n    <LoggedIn @userData={{hash username=\"Zoey\"}} />\n    ```\n  \n    Will render:\n  \n    ```html\n    Welcome back!\n    ```\n  \n    and calling it with a falsey `userData`:\n  \n    ```app/templates/application.hbs\n    <LoggedIn @userData={{false}} />\n    ```\n  \n    Will render:\n  \n    ```html\n    Please login.\n    ```\n  \n    @method unless\n    @for Ember.Templates.helpers\n    @public\n  */\n\n\n  function inlineUnless(args, vm) {\n    return new _reference.HelperRootReference(unless, args.capture(), vm.env);\n  }\n  /**\n  @module ember\n  */\n\n  /**\n    `log` allows you to output the value of variables in the current rendering\n    context. `log` also accepts primitive types such as strings or numbers.\n  \n    ```handlebars\n    {{log \"myVariable:\" myVariable }}\n    ```\n  \n    @method log\n    @for Ember.Templates.helpers\n    @param {Array} params\n    @public\n  */\n\n\n  function log({\n    positional\n  }) {\n    /* eslint-disable no-console */\n    console.log(...positional.value());\n    /* eslint-enable no-console */\n  }\n\n  function log$1(args, vm) {\n    return new _reference.HelperRootReference(log, args.capture(), vm.env);\n  }\n  /**\n  @module ember\n  */\n\n  /**\n    This is a helper to be used in conjunction with the link-to helper.\n    It will supply url query parameters to the target route.\n  \n    @example In this example we are setting the `direction` query param to the value `\"asc\"`\n  \n    ```app/templates/application.hbs\n    <LinkTo\n      @route=\"posts\"\n      {{query-params direction=\"asc\"}}\n    >\n      Sort\n    </LinkTo>\n    ```\n  \n    @method query-params\n    @for Ember.Templates.helpers\n    @param {Object} hash takes a hash of query parameters\n    @return {Object} A `QueryParams` object for `{{link-to}}`\n    @public\n  */\n\n\n  function queryParams({\n    positional,\n    named\n  }) {\n    // tslint:disable-next-line:max-line-length\n    (true && !(positional.value().length === 0) && (0, _debug.assert)(\"The `query-params` helper only accepts hash parameters, e.g. (query-params queryParamPropertyName='foo') as opposed to just (query-params 'foo')\", positional.value().length === 0));\n    return new _routing.QueryParams((0, _polyfills.assign)({}, named.value()));\n  }\n\n  function queryParams$1(args, vm) {\n    return new _reference.HelperRootReference(queryParams, args.capture(), vm.env);\n  }\n  /**\n    The `readonly` helper let's you specify that a binding is one-way only,\n    instead of two-way.\n    When you pass a `readonly` binding from an outer context (e.g. parent component),\n    to to an inner context (e.g. child component), you are saying that changing that\n    property in the inner context does not change the value in the outer context.\n  \n    To specify that a binding is read-only, when invoking the child `Component`:\n  \n    ```app/components/my-parent.js\n    export default Component.extend({\n      totalClicks: 3\n    });\n    ```\n  \n    ```app/templates/components/my-parent.hbs\n    {{log totalClicks}} // -> 3\n    <MyChild @childClickCount={{readonly totalClicks}} />\n    ```\n    ```\n    {{my-child childClickCount=(readonly totalClicks)}}\n    ```\n  \n    Now, when you update `childClickCount`:\n  \n    ```app/components/my-child.js\n    export default Component.extend({\n      click() {\n        this.incrementProperty('childClickCount');\n      }\n    });\n    ```\n  \n    The value updates in the child component, but not the parent component:\n  \n    ```app/templates/components/my-child.hbs\n    {{log childClickCount}} //-> 4\n    ```\n  \n    ```app/templates/components/my-parent.hbs\n    {{log totalClicks}} //-> 3\n    <MyChild @childClickCount={{readonly totalClicks}} />\n    ```\n    or\n    ```app/templates/components/my-parent.hbs\n    {{log totalClicks}} //-> 3\n    {{my-child childClickCount=(readonly totalClicks)}}\n    ```\n  \n    ### Objects and Arrays\n  \n    When passing a property that is a complex object (e.g. object, array) instead of a primitive object (e.g. number, string),\n    only the reference to the object is protected using the readonly helper.\n    This means that you can change properties of the object both on the parent component, as well as the child component.\n    The `readonly` binding behaves similar to the `const` keyword in JavaScript.\n  \n    Let's look at an example:\n  \n    First let's set up the parent component:\n  \n    ```app/components/my-parent.js\n    import Component from '@ember/component';\n  \n    export default Component.extend({\n      clicks: null,\n  \n      init() {\n        this._super(...arguments);\n        this.set('clicks', { total: 3 });\n      }\n    });\n    ```\n  \n    ```app/templates/components/my-parent.hbs\n    {{log clicks.total}} //-> 3\n    <MyChild @childClicks={{readonly clicks}} />\n    ```\n    ```app/templates/components/my-parent.hbs\n    {{log clicks.total}} //-> 3\n    {{my-child childClicks=(readonly clicks)}}\n    ```\n  \n    Now, if you update the `total` property of `childClicks`:\n  \n    ```app/components/my-child.js\n    import Component from '@ember/component';\n  \n    export default Component.extend({\n      click() {\n        this.get('clicks').incrementProperty('total');\n      }\n    });\n    ```\n  \n    You will see the following happen:\n  \n    ```app/templates/components/my-parent.hbs\n    {{log clicks.total}} //-> 4\n    <MyChild @childClicks={{readonly clicks}} />\n    ```\n    or\n    ```app/templates/components/my-parent.hbs\n    {{log clicks.total}} //-> 4\n    {{my-child childClicks=(readonly clicks)}}\n    ```\n  \n    ```app/templates/components/my-child.hbs\n    {{log childClicks.total}} //-> 4\n    ```\n  \n    @method readonly\n    @param {Object} [attr] the read-only attribute.\n    @for Ember.Templates.helpers\n    @private\n  */\n\n\n  class ReadonlyReference extends _reference.RootReference {\n    constructor(inner, env) {\n      super(env);\n      this.inner = inner;\n      this.tag = inner.tag;\n    }\n\n    get [INVOKE]() {\n      return this.inner[INVOKE];\n    }\n\n    value() {\n      return this.inner.value();\n    }\n\n    get(key) {\n      return this.inner.get(key);\n    }\n\n  }\n\n  function readonly(args, vm) {\n    var ref = unMut(args.positional.at(0));\n    return new ReadonlyReference(ref, vm.env);\n  }\n  /**\n  @module ember\n  */\n\n  /**\n    The `{{unbound}}` helper disconnects the one-way binding of a property,\n    essentially freezing its value at the moment of rendering. For example,\n    in this example the display of the variable `name` will not change even\n    if it is set with a new value:\n  \n    ```handlebars\n    {{unbound this.name}}\n    ```\n  \n    Like any helper, the `unbound` helper can accept a nested helper expression.\n    This allows for custom helpers to be rendered unbound:\n  \n    ```handlebars\n    {{unbound (some-custom-helper)}}\n    {{unbound (capitalize this.name)}}\n    {{! You can use any helper, including unbound, in a nested expression }}\n    {{capitalize (unbound this.name)}}\n    ```\n  \n    The `unbound` helper only accepts a single argument, and it return an\n    unbound value.\n  \n    @method unbound\n    @for Ember.Templates.helpers\n    @public\n  */\n\n\n  function unbound(args, vm) {\n    (true && !(args.positional.length === 1 && args.named.length === 0) && (0, _debug.assert)('unbound helper cannot be called with multiple params or hash params', args.positional.length === 1 && args.named.length === 0));\n    return new UnboundRootReference(args.positional.at(0).value(), vm.env);\n  }\n\n  var MODIFIERS = ['alt', 'shift', 'meta', 'ctrl'];\n  var POINTER_EVENT_TYPE_REGEX = /^click|mouse|touch/;\n\n  function isAllowedEvent(event, allowedKeys) {\n    if (allowedKeys === null || allowedKeys === undefined) {\n      if (POINTER_EVENT_TYPE_REGEX.test(event.type)) {\n        return (0, _views.isSimpleClick)(event);\n      } else {\n        allowedKeys = '';\n      }\n    }\n\n    if (allowedKeys.indexOf('any') >= 0) {\n      return true;\n    }\n\n    for (var i = 0; i < MODIFIERS.length; i++) {\n      if (event[MODIFIERS[i] + 'Key'] && allowedKeys.indexOf(MODIFIERS[i]) === -1) {\n        return false;\n      }\n    }\n\n    return true;\n  }\n\n  var ActionHelper = {\n    // registeredActions is re-exported for compatibility with older plugins\n    // that were using this undocumented API.\n    registeredActions: _views.ActionManager.registeredActions,\n\n    registerAction(actionState) {\n      var {\n        actionId\n      } = actionState;\n      _views.ActionManager.registeredActions[actionId] = actionState;\n      return actionId;\n    },\n\n    unregisterAction(actionState) {\n      var {\n        actionId\n      } = actionState;\n      delete _views.ActionManager.registeredActions[actionId];\n    }\n\n  };\n\n  class ActionState {\n    constructor(element, actionId, actionName, actionArgs, namedArgs, positionalArgs, implicitTarget, dom, tag) {\n      this.element = element;\n      this.actionId = actionId;\n      this.actionName = actionName;\n      this.actionArgs = actionArgs;\n      this.namedArgs = namedArgs;\n      this.positional = positionalArgs;\n      this.implicitTarget = implicitTarget;\n      this.dom = dom;\n      this.eventName = this.getEventName();\n      this.tag = tag;\n    }\n\n    getEventName() {\n      return this.namedArgs.get('on').value() || 'click';\n    }\n\n    getActionArgs() {\n      var result = new Array(this.actionArgs.length);\n\n      for (var i = 0; i < this.actionArgs.length; i++) {\n        result[i] = this.actionArgs[i].value();\n      }\n\n      return result;\n    }\n\n    getTarget() {\n      var {\n        implicitTarget,\n        namedArgs\n      } = this;\n      var target;\n\n      if (namedArgs.has('target')) {\n        target = namedArgs.get('target').value();\n      } else {\n        target = implicitTarget.value();\n      }\n\n      return target;\n    }\n\n    handler(event) {\n      var {\n        actionName,\n        namedArgs\n      } = this;\n      var bubbles = namedArgs.get('bubbles');\n      var preventDefault = namedArgs.get('preventDefault');\n      var allowedKeys = namedArgs.get('allowedKeys');\n      var target = this.getTarget();\n      var shouldBubble = bubbles.value() !== false;\n\n      if (!isAllowedEvent(event, allowedKeys.value())) {\n        return true;\n      }\n\n      if (preventDefault.value() !== false) {\n        event.preventDefault();\n      }\n\n      if (!shouldBubble) {\n        event.stopPropagation();\n      }\n\n      (0, _runloop.join)(() => {\n        var args = this.getActionArgs();\n        var payload = {\n          args,\n          target,\n          name: null\n        };\n\n        if (typeof actionName[INVOKE] === 'function') {\n          (0, _instrumentation.flaggedInstrument)('interaction.ember-action', payload, () => {\n            actionName[INVOKE].apply(actionName, args);\n          });\n          return;\n        }\n\n        if (typeof actionName === 'function') {\n          (0, _instrumentation.flaggedInstrument)('interaction.ember-action', payload, () => {\n            actionName.apply(target, args);\n          });\n          return;\n        }\n\n        payload.name = actionName;\n\n        if (target.send) {\n          (0, _instrumentation.flaggedInstrument)('interaction.ember-action', payload, () => {\n            target.send.apply(target, [actionName, ...args]);\n          });\n        } else {\n          (true && !(typeof target[actionName] === 'function') && (0, _debug.assert)(`The action '${actionName}' did not exist on ${target}`, typeof target[actionName] === 'function'));\n          (0, _instrumentation.flaggedInstrument)('interaction.ember-action', payload, () => {\n            target[actionName].apply(target, args);\n          });\n        }\n      });\n      return shouldBubble;\n    }\n\n    destroy() {\n      ActionHelper.unregisterAction(this);\n    }\n\n  } // implements ModifierManager<Action>\n\n\n  class ActionModifierManager {\n    create(element, _state, args, _dynamicScope, dom) {\n      var {\n        named,\n        positional,\n        tag\n      } = args.capture();\n      var implicitTarget;\n      var actionName;\n      var actionNameRef;\n\n      if (positional.length > 1) {\n        implicitTarget = positional.at(0);\n        actionNameRef = positional.at(1);\n\n        if (actionNameRef[INVOKE]) {\n          actionName = actionNameRef;\n        } else {\n          var actionLabel = actionNameRef.propertyKey;\n          actionName = actionNameRef.value();\n          (true && !(typeof actionName === 'string' || typeof actionName === 'function') && (0, _debug.assert)('You specified a quoteless path, `' + actionLabel + '`, to the ' + '{{action}} helper which did not resolve to an action name (a ' + 'string). Perhaps you meant to use a quoted actionName? (e.g. ' + '{{action \"' + actionLabel + '\"}}).', typeof actionName === 'string' || typeof actionName === 'function'));\n        }\n      }\n\n      var actionArgs = []; // The first two arguments are (1) `this` and (2) the action name.\n      // Everything else is a param.\n\n      for (var i = 2; i < positional.length; i++) {\n        actionArgs.push(positional.at(i));\n      }\n\n      var actionId = (0, _utils.uuid)();\n      var actionState = new ActionState(element, actionId, actionName, actionArgs, named, positional, implicitTarget, dom, tag);\n      (true && !(actionState.eventName !== 'mouseEnter' && actionState.eventName !== 'mouseLeave' && actionState.eventName !== 'mouseMove') && (0, _debug.deprecate)(`Using the \\`{{action}}\\` modifier with \\`${actionState.eventName}\\` events has been deprecated.`, actionState.eventName !== 'mouseEnter' && actionState.eventName !== 'mouseLeave' && actionState.eventName !== 'mouseMove', {\n        id: 'ember-views.event-dispatcher.mouseenter-leave-move',\n        until: '4.0.0',\n        url: 'https://emberjs.com/deprecations/v3.x#toc_action-mouseenter-leave-move'\n      }));\n      return actionState;\n    }\n\n    install(actionState) {\n      var {\n        dom,\n        element,\n        actionId\n      } = actionState;\n      ActionHelper.registerAction(actionState);\n      dom.setAttribute(element, 'data-ember-action', '');\n      dom.setAttribute(element, `data-ember-action-${actionId}`, actionId);\n    }\n\n    update(actionState) {\n      var {\n        positional\n      } = actionState;\n      var actionNameRef = positional.at(1);\n\n      if (!actionNameRef[INVOKE]) {\n        actionState.actionName = actionNameRef.value();\n      }\n\n      actionState.eventName = actionState.getEventName();\n    }\n\n    getTag(actionState) {\n      return actionState.tag;\n    }\n\n    getDestructor(modifier) {\n      return modifier;\n    }\n\n  }\n\n  var debugRenderMessage;\n\n  if (true\n  /* DEBUG */\n  ) {\n    debugRenderMessage = renderingStack => {\n      return `While rendering:\\n----------------\\n${renderingStack.replace(/^/gm, '  ')}`;\n    };\n  }\n\n  var debugRenderMessage$1 = debugRenderMessage;\n\n  function capabilities$1(managerAPI, optionalFeatures = {}) {\n    if (managerAPI !== '3.13') {\n      managerAPI = '3.13';\n      (true && !(false) && (0, _debug.deprecate)('Modifier manager capabilities now require you to pass a valid version when being generated. Valid versions include: 3.13', false, {\n        until: '3.17.0',\n        id: 'implicit-modifier-manager-capabilities'\n      }));\n    }\n\n    (true && !(managerAPI === '3.13') && (0, _debug.assert)('Invalid modifier manager compatibility specified', managerAPI === '3.13'));\n    return {\n      disableAutoTracking: Boolean(optionalFeatures.disableAutoTracking)\n    };\n  }\n\n  class CustomModifierDefinition {\n    constructor(name, ModifierClass, delegate, isInteractive) {\n      this.name = name;\n      this.ModifierClass = ModifierClass;\n      this.delegate = delegate;\n      this.state = {\n        ModifierClass,\n        name,\n        delegate\n      };\n      this.manager = isInteractive ? CUSTOM_INTERACTIVE_MODIFIER_MANAGER : CUSTOM_NON_INTERACTIVE_MODIFIER_MANAGER;\n    }\n\n  }\n\n  class CustomModifierState {\n    constructor(element, delegate, modifier, args) {\n      this.element = element;\n      this.delegate = delegate;\n      this.modifier = modifier;\n      this.args = args;\n      this.tag = (0, _validator.createUpdatableTag)();\n    }\n\n    destroy() {\n      var {\n        delegate,\n        modifier,\n        args\n      } = this;\n      delegate.destroyModifier(modifier, args.value());\n    }\n\n  }\n  /**\n    The CustomModifierManager allows addons to provide custom modifier\n    implementations that integrate seamlessly into Ember. This is accomplished\n    through a delegate, registered with the custom modifier manager, which\n    implements a set of hooks that determine modifier behavior.\n    To create a custom modifier manager, instantiate a new CustomModifierManager\n    class and pass the delegate as the first argument:\n  \n    ```js\n    let manager = new CustomModifierManager({\n      // ...delegate implementation...\n    });\n    ```\n  \n    ## Delegate Hooks\n  \n    Throughout the lifecycle of a modifier, the modifier manager will invoke\n    delegate hooks that are responsible for surfacing those lifecycle changes to\n    the end developer.\n    * `createModifier()` - invoked when a new instance of a modifier should be created\n    * `installModifier()` - invoked when the modifier is installed on the element\n    * `updateModifier()` - invoked when the arguments passed to a modifier change\n    * `destroyModifier()` - invoked when the modifier is about to be destroyed\n  */\n\n\n  class InteractiveCustomModifierManager {\n    create(element, definition, args) {\n      var {\n        delegate,\n        ModifierClass\n      } = definition;\n      var capturedArgs = args.capture();\n      var instance = definition.delegate.createModifier(ModifierClass, capturedArgs.value());\n\n      if (delegate.capabilities === undefined) {\n        delegate.capabilities = capabilities$1('3.13');\n        (true && !(false) && (0, _debug.deprecate)('Custom modifier managers must define their capabilities using the capabilities() helper function', false, {\n          until: '3.17.0',\n          id: 'implicit-modifier-manager-capabilities'\n        }));\n      }\n\n      return new CustomModifierState(element, delegate, instance, capturedArgs);\n    }\n\n    getTag({\n      args,\n      tag\n    }) {\n      return (0, _validator.combine)([tag, args.tag]);\n    }\n\n    install(state) {\n      var {\n        element,\n        args,\n        delegate,\n        modifier,\n        tag\n      } = state;\n      var {\n        capabilities\n      } = delegate;\n\n      if (capabilities.disableAutoTracking === true) {\n        (0, _validator.untrack)(() => delegate.installModifier(modifier, element, args.value()));\n      } else {\n        var combinedTrackingTag = (0, _validator.track)(() => delegate.installModifier(modifier, element, args.value()), true\n        /* DEBUG */\n        && debugRenderMessage$1(`(instance of a \\`${(0, _utils.getDebugName)(modifier)}\\` modifier)`));\n        (0, _validator.updateTag)(tag, combinedTrackingTag);\n      }\n    }\n\n    update(state) {\n      var {\n        args,\n        delegate,\n        modifier,\n        tag\n      } = state;\n      var {\n        capabilities\n      } = delegate;\n\n      if (capabilities.disableAutoTracking === true) {\n        (0, _validator.untrack)(() => delegate.updateModifier(modifier, args.value()));\n      } else {\n        var combinedTrackingTag = (0, _validator.track)(() => delegate.updateModifier(modifier, args.value()), true\n        /* DEBUG */\n        && debugRenderMessage$1(`(instance of a \\`${(0, _utils.getDebugName)(modifier)}\\` modifier)`));\n        (0, _validator.updateTag)(tag, combinedTrackingTag);\n      }\n    }\n\n    getDestructor(state) {\n      return state;\n    }\n\n  }\n\n  class NonInteractiveCustomModifierManager {\n    create() {\n      return null;\n    }\n\n    getTag() {\n      return _validator.CONSTANT_TAG;\n    }\n\n    install() {}\n\n    update() {}\n\n    getDestructor() {\n      return null;\n    }\n\n  }\n\n  var CUSTOM_INTERACTIVE_MODIFIER_MANAGER = new InteractiveCustomModifierManager();\n  var CUSTOM_NON_INTERACTIVE_MODIFIER_MANAGER = new NonInteractiveCustomModifierManager();\n  var untouchableContext = buildUntouchableThis('`on` modifier');\n  /**\n  @module ember\n  */\n\n  /*\n    Internet Explorer 11 does not support `once` and also does not support\n    passing `eventOptions`. In some situations it then throws a weird script\n    error, like:\n  \n    ```\n    Could not complete the operation due to error 80020101\n    ```\n  \n    This flag determines, whether `{ once: true }` and thus also event options in\n    general are supported.\n  */\n\n  var SUPPORTS_EVENT_OPTIONS = (() => {\n    try {\n      var div = document.createElement('div');\n      var counter = 0;\n      div.addEventListener('click', () => counter++, {\n        once: true\n      });\n      var event;\n\n      if (typeof Event === 'function') {\n        event = new Event('click');\n      } else {\n        event = document.createEvent('Event');\n        event.initEvent('click', true, true);\n      }\n\n      div.dispatchEvent(event);\n      div.dispatchEvent(event);\n      return counter === 1;\n    } catch (error) {\n      return false;\n    }\n  })();\n\n  class OnModifierState {\n    constructor(element, args) {\n      this.shouldUpdate = true;\n      this.element = element;\n      this.args = args;\n      this.tag = args.tag;\n    }\n\n    updateFromArgs() {\n      var {\n        args\n      } = this;\n      var {\n        once,\n        passive,\n        capture\n      } = args.named.value();\n\n      if (once !== this.once) {\n        this.once = once;\n        this.shouldUpdate = true;\n      }\n\n      if (passive !== this.passive) {\n        this.passive = passive;\n        this.shouldUpdate = true;\n      }\n\n      if (capture !== this.capture) {\n        this.capture = capture;\n        this.shouldUpdate = true;\n      }\n\n      var options;\n\n      if (once || passive || capture) {\n        options = this.options = {\n          once,\n          passive,\n          capture\n        };\n      } else {\n        this.options = undefined;\n      }\n\n      (true && !(args.positional.at(0) !== undefined && typeof args.positional.at(0).value() === 'string') && (0, _debug.assert)('You must pass a valid DOM event name as the first argument to the `on` modifier', args.positional.at(0) !== undefined && typeof args.positional.at(0).value() === 'string'));\n      var eventName = args.positional.at(0).value();\n\n      if (eventName !== this.eventName) {\n        this.eventName = eventName;\n        this.shouldUpdate = true;\n      }\n\n      (true && !(args.positional.at(1) !== undefined && typeof args.positional.at(1).value() === 'function') && (0, _debug.assert)('You must pass a function as the second argument to the `on` modifier', args.positional.at(1) !== undefined && typeof args.positional.at(1).value() === 'function'));\n      var userProvidedCallback = args.positional.at(1).value();\n\n      if (userProvidedCallback !== this.userProvidedCallback) {\n        this.userProvidedCallback = userProvidedCallback;\n        this.shouldUpdate = true;\n      }\n\n      (true && !(args.positional.length === 2) && (0, _debug.assert)(`You can only pass two positional arguments (event name and callback) to the \\`on\\` modifier, but you provided ${args.positional.length}. Consider using the \\`fn\\` helper to provide additional arguments to the \\`on\\` callback.`, args.positional.length === 2));\n      var needsCustomCallback = SUPPORTS_EVENT_OPTIONS === false && once ||\n      /* needs manual once implementation */\n      true\n      /* DEBUG */\n      && passive\n      /* needs passive enforcement */\n      ;\n\n      if (this.shouldUpdate) {\n        if (needsCustomCallback) {\n          var callback = this.callback = function (event) {\n            if (true\n            /* DEBUG */\n            && passive) {\n              event.preventDefault = () => {\n                (true && !(false) && (0, _debug.assert)(`You marked this listener as 'passive', meaning that you must not call 'event.preventDefault()': \\n\\n${userProvidedCallback}`));\n              };\n            }\n\n            if (!SUPPORTS_EVENT_OPTIONS && once) {\n              removeEventListener(this, eventName, callback, options);\n            }\n\n            return userProvidedCallback.call(untouchableContext, event);\n          };\n        } else if (true\n        /* DEBUG */\n        ) {\n          // prevent the callback from being bound to the element\n          this.callback = userProvidedCallback.bind(untouchableContext);\n        } else {\n          this.callback = userProvidedCallback;\n        }\n      }\n    }\n\n    destroy() {\n      var {\n        element,\n        eventName,\n        callback,\n        options\n      } = this;\n      removeEventListener(element, eventName, callback, options);\n    }\n\n  }\n\n  var adds = 0;\n  var removes = 0;\n\n  function removeEventListener(element, eventName, callback, options) {\n    removes++;\n\n    if (SUPPORTS_EVENT_OPTIONS) {\n      // when options are supported, use them across the board\n      element.removeEventListener(eventName, callback, options);\n    } else if (options !== undefined && options.capture) {\n      // used only in the following case:\n      //\n      // `{ once: true | false, passive: true | false, capture: true }\n      //\n      // `once` is handled via a custom callback that removes after first\n      // invocation so we only care about capture here as a boolean\n      element.removeEventListener(eventName, callback, true);\n    } else {\n      // used only in the following cases:\n      //\n      // * where there is no options\n      // * `{ once: true | false, passive: true | false, capture: false }\n      element.removeEventListener(eventName, callback);\n    }\n  }\n\n  function addEventListener(element, eventName, callback, options) {\n    adds++;\n\n    if (SUPPORTS_EVENT_OPTIONS) {\n      // when options are supported, use them across the board\n      element.addEventListener(eventName, callback, options);\n    } else if (options !== undefined && options.capture) {\n      // used only in the following case:\n      //\n      // `{ once: true | false, passive: true | false, capture: true }\n      //\n      // `once` is handled via a custom callback that removes after first\n      // invocation so we only care about capture here as a boolean\n      element.addEventListener(eventName, callback, true);\n    } else {\n      // used only in the following cases:\n      //\n      // * where there is no options\n      // * `{ once: true | false, passive: true | false, capture: false }\n      element.addEventListener(eventName, callback);\n    }\n  }\n  /**\n    The `{{on}}` modifier lets you easily add event listeners (it uses\n    [EventTarget.addEventListener](https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/addEventListener)\n    internally).\n  \n    For example, if you'd like to run a function on your component when a `<button>`\n    in the components template is clicked you might do something like:\n  \n    ```app/components/like-post.hbs\n    <button {{on 'click' this.saveLike}}>Like this post!</button>\n    ```\n  \n    ```app/components/like-post.js\n    import Component from '@glimmer/component';\n    import { action } from '@ember/object';\n  \n    export default class LikePostComponent extends Component {\n      @action\n      saveLike() {\n        // someone likes your post!\n        // better send a request off to your server...\n      }\n    }\n    ```\n  \n    ### Arguments\n  \n    `{{on}}` accepts two positional arguments, and a few named arguments.\n  \n    The positional arguments are:\n  \n    - `event` -- the name to use when calling `addEventListener`\n    - `callback` -- the function to be passed to `addEventListener`\n  \n    The named arguments are:\n  \n    - capture -- a `true` value indicates that events of this type will be dispatched\n      to the registered listener before being dispatched to any EventTarget beneath it\n      in the DOM tree.\n    - once -- indicates that the listener should be invoked at most once after being\n      added. If true, the listener would be automatically removed when invoked.\n    - passive -- if `true`, indicates that the function specified by listener will never\n      call preventDefault(). If a passive listener does call preventDefault(), the user\n      agent will do nothing other than generate a console warning. See\n      [Improving scrolling performance with passive listeners](https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/addEventListener#Improving_scrolling_performance_with_passive_listeners)\n      to learn more.\n  \n    The callback function passed to `{{on}}` will receive any arguments that are passed\n    to the event handler. Most commonly this would be the `event` itself.\n  \n    If you would like to pass additional arguments to the function you should use\n    the `{{fn}}` helper.\n  \n    For example, in our example case above if you'd like to pass in the post that\n    was being liked when the button is clicked you could do something like:\n  \n    ```app/components/like-post.hbs\n    <button {{on 'click' (fn this.saveLike @post)}}>Like this post!</button>\n    ```\n  \n    In this case, the `saveLike` function will receive two arguments: the click event\n    and the value of `@post`.\n  \n    ### Function Context\n  \n    In the example above, we used `@action` to ensure that `likePost` is\n    properly bound to the `items-list`, but let's explore what happens if we\n    left out `@action`:\n  \n    ```app/components/like-post.js\n    import Component from '@glimmer/component';\n  \n    export default class LikePostComponent extends Component {\n      saveLike() {\n        // ...snip...\n      }\n    }\n    ```\n  \n    In this example, when the button is clicked `saveLike` will be invoked,\n    it will **not** have access to the component instance. In other\n    words, it will have no `this` context, so please make sure your functions\n    are bound (via `@action` or other means) before passing into `on`!\n  \n    @method on\n    @for Ember.Templates.helpers\n    @public\n    @since 3.11.0\n  */\n\n\n  class OnModifierManager {\n    constructor(isInteractive) {\n      this.SUPPORTS_EVENT_OPTIONS = SUPPORTS_EVENT_OPTIONS;\n      this.isInteractive = isInteractive;\n    }\n\n    get counters() {\n      return {\n        adds,\n        removes\n      };\n    }\n\n    create(element, _state, args) {\n      if (!this.isInteractive) {\n        return null;\n      }\n\n      var capturedArgs = args.capture();\n      return new OnModifierState(element, capturedArgs);\n    }\n\n    getTag(state) {\n      if (state === null) {\n        return _validator.CONSTANT_TAG;\n      }\n\n      return state.tag;\n    }\n\n    install(state) {\n      if (state === null) {\n        return;\n      }\n\n      state.updateFromArgs();\n      var {\n        element,\n        eventName,\n        callback,\n        options\n      } = state;\n      addEventListener(element, eventName, callback, options);\n      state.shouldUpdate = false;\n    }\n\n    update(state) {\n      if (state === null) {\n        return;\n      } // stash prior state for el.removeEventListener\n\n\n      var {\n        element,\n        eventName,\n        callback,\n        options\n      } = state;\n      state.updateFromArgs();\n\n      if (!state.shouldUpdate) {\n        return;\n      } // use prior state values for removal\n\n\n      removeEventListener(element, eventName, callback, options); // read updated values from the state object\n\n      addEventListener(state.element, state.eventName, state.callback, state.options);\n      state.shouldUpdate = false;\n    }\n\n    getDestructor(state) {\n      return state;\n    }\n\n  }\n\n  var CAPABILITIES$3 = {\n    dynamicLayout: true,\n    dynamicTag: false,\n    prepareArgs: false,\n    createArgs: true,\n    attributeHook: false,\n    elementHook: false,\n    createCaller: true,\n    dynamicScope: true,\n    updateHook: true,\n    createInstance: true,\n    wrapped: false,\n    willDestroy: false\n  }; // TODO\n  // This \"disables\" the \"@model\" feature by making the arg untypable syntatically\n  // Delete this when EMBER_ROUTING_MODEL_ARG has shipped\n\n  var MODEL_ARG_NAME = 'model';\n\n  class MountManager extends AbstractManager {\n    getJitDynamicLayout(state, _) {\n      var templateFactory$$1 = state.engine.lookup('template:application');\n      var template = templateFactory$$1(state.engine);\n\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        state.environment.extra.debugRenderTree.setTemplate(state.controller, template);\n      }\n\n      return template;\n    }\n\n    getCapabilities() {\n      return CAPABILITIES$3;\n    }\n\n    create(environment, {\n      name\n    }, args) {\n      // TODO\n      // mount is a runtime helper, this shouldn't use dynamic layout\n      // we should resolve the engine app template in the helper\n      // it also should use the owner that looked up the mount helper.\n      var engine = environment.extra.owner.buildChildEngineInstance(name);\n      engine.boot();\n      var applicationFactory = engine.factoryFor(`controller:application`);\n      var controllerFactory = applicationFactory || (0, _routing.generateControllerFactory)(engine, 'application');\n      var controller;\n      var self;\n      var bucket;\n      var modelRef;\n\n      if (args.named.has(MODEL_ARG_NAME)) {\n        modelRef = args.named.get(MODEL_ARG_NAME);\n      }\n\n      if (modelRef === undefined) {\n        controller = controllerFactory.create();\n        self = new _reference.ComponentRootReference(controller, environment);\n        bucket = {\n          engine,\n          controller,\n          self,\n          environment\n        };\n      } else {\n        var model = modelRef.value();\n        controller = controllerFactory.create({\n          model\n        });\n        self = new _reference.ComponentRootReference(controller, environment);\n        bucket = {\n          engine,\n          controller,\n          self,\n          modelRef,\n          environment\n        };\n      }\n\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        environment.extra.debugRenderTree.create(bucket, {\n          type: 'engine',\n          name,\n          args: args.capture(),\n          instance: engine,\n          template: undefined\n        });\n        environment.extra.debugRenderTree.create(controller, {\n          type: 'route-template',\n          name: 'application',\n          args: args.capture(),\n          instance: controller,\n          // set in getDynamicLayout\n          template: undefined\n        });\n      }\n\n      return bucket;\n    }\n\n    getSelf({\n      self\n    }) {\n      return self;\n    }\n\n    getTag(state) {\n      var tag = _validator.CONSTANT_TAG;\n\n      if (state.modelRef) {\n        tag = state.modelRef.tag;\n      }\n\n      if (_environment2.ENV._DEBUG_RENDER_TREE && (0, _validator.isConstTag)(tag)) {\n        tag = (0, _validator.createTag)();\n      }\n\n      return tag;\n    }\n\n    getDestructor(bucket) {\n      var {\n        engine,\n        environment,\n        controller\n      } = bucket;\n\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        return {\n          destroy() {\n            environment.extra.debugRenderTree.willDestroy(controller);\n            environment.extra.debugRenderTree.willDestroy(bucket);\n            engine.destroy();\n          }\n\n        };\n      } else {\n        return engine;\n      }\n    }\n\n    didRenderLayout(bucket, bounds) {\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        bucket.environment.extra.debugRenderTree.didRender(bucket.controller, bounds);\n        bucket.environment.extra.debugRenderTree.didRender(bucket, bounds);\n      }\n    }\n\n    update(bucket) {\n      var {\n        controller,\n        environment,\n        modelRef\n      } = bucket;\n\n      if (modelRef !== undefined) {\n        controller.set('model', modelRef.value());\n      }\n\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        environment.extra.debugRenderTree.update(bucket);\n        environment.extra.debugRenderTree.update(bucket.controller);\n      }\n    }\n\n    didUpdateLayout(bucket, bounds) {\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        bucket.environment.extra.debugRenderTree.didRender(bucket.controller, bounds);\n        bucket.environment.extra.debugRenderTree.didRender(bucket, bounds);\n      }\n    }\n\n  }\n\n  var MOUNT_MANAGER = new MountManager();\n\n  class MountDefinition {\n    constructor(name) {\n      this.manager = MOUNT_MANAGER;\n      this.state = {\n        name\n      };\n    }\n\n  }\n  /**\n  @module ember\n  */\n\n\n  function mountHelper(args, vm) {\n    var env = vm.env;\n    var nameRef = args.positional.at(0);\n    var captured = null;\n    (true && !(args.positional.length === 1) && (0, _debug.assert)('You can only pass a single positional argument to the {{mount}} helper, e.g. {{mount \"chat-engine\"}}.', args.positional.length === 1));\n\n    if (true\n    /* DEBUG */\n    && args.named) {\n      var keys = args.named.names;\n      var extra = keys.filter(k => k !== 'model');\n      (true && !(extra.length === 0) && (0, _debug.assert)('You can only pass a `model` argument to the {{mount}} helper, ' + 'e.g. {{mount \"profile-engine\" model=this.profile}}. ' + `You passed ${extra.join(',')}.`, extra.length === 0));\n    } // TODO: the functionality to create a proper CapturedArgument should be\n    // exported by glimmer, or that it should provide an overload for `curry`\n    // that takes `PreparedArguments`\n\n\n    if (args.named.has('model')) {\n      (true && !(args.named.length === 1) && (0, _debug.assert)('[BUG] this should already be checked by the macro', args.named.length === 1));\n      var named = args.named.capture();\n      var {\n        tag\n      } = named; // TODO delete me after EMBER_ROUTING_MODEL_ARG has shipped\n\n      if (true\n      /* DEBUG */\n      && MODEL_ARG_NAME !== 'model') {\n        (true && !(named['_map'] === null) && (0, _debug.assert)('[BUG] named._map is not null', named['_map'] === null));\n        named.names = [MODEL_ARG_NAME];\n      }\n\n      captured = {\n        tag,\n        positional: _runtime2.EMPTY_ARGS.positional,\n        named,\n        length: 1,\n\n        value() {\n          return {\n            named: this.named.value(),\n            positional: this.positional.value()\n          };\n        }\n\n      };\n    }\n\n    return new DynamicEngineReference(nameRef, env, captured);\n  }\n  /**\n    The `{{mount}}` helper lets you embed a routeless engine in a template.\n    Mounting an engine will cause an instance to be booted and its `application`\n    template to be rendered.\n  \n    For example, the following template mounts the `ember-chat` engine:\n  \n    ```handlebars\n    {{! application.hbs }}\n    {{mount \"ember-chat\"}}\n    ```\n  \n    Additionally, you can also pass in a `model` argument that will be\n    set as the engines model. This can be an existing object:\n  \n    ```\n    <div>\n      {{mount 'admin' model=userSettings}}\n    </div>\n    ```\n  \n    Or an inline `hash`, and you can even pass components:\n  \n    ```\n    <div>\n      <h1>Application template!</h1>\n      {{mount 'admin' model=(hash\n          title='Secret Admin'\n          signInButton=(component 'sign-in-button')\n      )}}\n    </div>\n    ```\n  \n    @method mount\n    @param {String} name Name of the engine to mount.\n    @param {Object} [model] Object that will be set as\n                            the model of the engine.\n    @for Ember.Templates.helpers\n    @public\n  */\n\n\n  class DynamicEngineReference {\n    constructor(nameRef, env, args) {\n      this.nameRef = nameRef;\n      this.env = env;\n      this.args = args;\n      this._lastName = null;\n      this._lastDef = null;\n      this.tag = nameRef.tag;\n    }\n\n    value() {\n      var {\n        env,\n        nameRef,\n        args\n      } = this;\n      var name = nameRef.value();\n\n      if (typeof name === 'string') {\n        if (this._lastName === name) {\n          return this._lastDef;\n        }\n\n        (true && !(env.extra.owner.hasRegistration(`engine:${name}`)) && (0, _debug.assert)(`You used \\`{{mount '${name}'}}\\`, but the engine '${name}' can not be found.`, env.extra.owner.hasRegistration(`engine:${name}`)));\n\n        if (!env.extra.owner.hasRegistration(`engine:${name}`)) {\n          return null;\n        }\n\n        this._lastName = name;\n        this._lastDef = (0, _runtime2.curry)(new MountDefinition(name), args);\n        return this._lastDef;\n      } else {\n        (true && !(name === null || name === undefined) && (0, _debug.assert)(`Invalid engine name '${name}' specified, engine name must be either a string, null or undefined.`, name === null || name === undefined));\n        this._lastDef = null;\n        this._lastName = null;\n        return null;\n      }\n    }\n\n    get() {\n      return _runtime2.UNDEFINED_REFERENCE;\n    }\n\n  }\n  /**\n   * Represents the root outlet.\n   */\n\n\n  class RootOutletReference {\n    constructor(outletState) {\n      this.outletState = outletState;\n      this.tag = (0, _validator.createTag)();\n    }\n\n    get(key) {\n      return new PathReference(this, key);\n    }\n\n    value() {\n      return this.outletState;\n    }\n\n    update(state) {\n      this.outletState.outlets.main = state;\n      (0, _validator.dirtyTag)(this.tag);\n    }\n\n  }\n  /**\n   * Represents the connected outlet.\n   */\n\n\n  class OutletReference {\n    constructor(parentStateRef, outletNameRef) {\n      this.parentStateRef = parentStateRef;\n      this.outletNameRef = outletNameRef;\n      this.tag = (0, _validator.combine)([parentStateRef.tag, outletNameRef.tag]);\n    }\n\n    value() {\n      var outletState = this.parentStateRef.value();\n      var outlets = outletState === undefined ? undefined : outletState.outlets;\n      return outlets === undefined ? undefined : outlets[this.outletNameRef.value()];\n    }\n\n    get(key) {\n      return new PathReference(this, key);\n    }\n\n  }\n  /**\n   * Outlet state is dirtied from root.\n   * This just using the parent tag for dirtiness.\n   */\n\n\n  class PathReference {\n    constructor(parent, key) {\n      this.parent = parent;\n      this.key = key;\n      this.tag = parent.tag;\n    }\n\n    get(key) {\n      return new PathReference(this, key);\n    }\n\n    value() {\n      var parent = this.parent.value();\n      return parent && parent[this.key];\n    }\n\n  }\n  /**\n    The `{{outlet}}` helper lets you specify where a child route will render in\n    your template. An important use of the `{{outlet}}` helper is in your\n    application's `application.hbs` file:\n  \n    ```app/templates/application.hbs\n    <MyHeader />\n  \n    <div class=\"my-dynamic-content\">\n      <!-- this content will change based on the current route, which depends on the current URL -->\n      {{outlet}}\n    </div>\n  \n    <MyFooter />\n    ```\n  \n    You may also specify a name for the `{{outlet}}`, which is useful when using more than one\n    `{{outlet}}` in a template:\n  \n    ```app/templates/application.hbs\n    {{outlet \"menu\"}}\n    {{outlet \"sidebar\"}}\n    {{outlet \"main\"}}\n    ```\n  \n    Your routes can then render into a specific one of these `outlet`s by specifying the `outlet`\n    attribute in your `renderTemplate` function:\n  \n    ```app/routes/menu.js\n    import Route from '@ember/routing/route';\n  \n    export default class MenuRoute extends Route {\n      renderTemplate() {\n        this.render({ outlet: 'menu' });\n      }\n    }\n    ```\n  \n    See the [routing guide](https://guides.emberjs.com/release/routing/rendering-a-template/) for more\n    information on how your `route` interacts with the `{{outlet}}` helper.\n    Note: Your content __will not render__ if there isn't an `{{outlet}}` for it.\n  \n    @method outlet\n    @param {String} [name]\n    @for Ember.Templates.helpers\n    @public\n  */\n\n\n  function outletHelper(args, vm) {\n    var scope = vm.dynamicScope();\n    var nameRef;\n\n    if (args.positional.length === 0) {\n      nameRef = new _reference.ConstReference('main');\n    } else {\n      nameRef = args.positional.at(0);\n    }\n\n    return new OutletComponentReference(new OutletReference(scope.outletState, nameRef), vm.env);\n  }\n\n  class OutletModelReference extends _reference.RootReference {\n    constructor(parent, env) {\n      super(env);\n      this.parent = parent;\n      this.tag = parent.tag;\n    }\n\n    value() {\n      var state = this.parent.value();\n\n      if (state === undefined) {\n        return undefined;\n      }\n\n      var {\n        render\n      } = state;\n\n      if (render === undefined) {\n        return undefined;\n      }\n\n      return render.model;\n    }\n\n  }\n\n  if (true\n  /* DEBUG */\n  ) {\n    OutletModelReference.prototype['debugLogName'] = '@model';\n  }\n\n  class OutletComponentReference {\n    constructor(outletRef, env) {\n      this.outletRef = outletRef;\n      this.env = env;\n      this.definition = null;\n      this.lastState = null; // The router always dirties the root state.\n\n      this.tag = outletRef.tag;\n    }\n\n    value() {\n      var state = stateFor(this.outletRef);\n\n      if (validate(state, this.lastState)) {\n        return this.definition;\n      }\n\n      this.lastState = state;\n      var definition = null;\n\n      if (state !== null) {\n        var args = makeArgs(this.outletRef, this.env);\n        definition = (0, _runtime2.curry)(new OutletComponentDefinition(state), args);\n      }\n\n      return this.definition = definition;\n    }\n\n    get(_key) {\n      return _runtime2.UNDEFINED_REFERENCE;\n    }\n\n  }\n\n  function makeArgs(outletRef, env) {\n    var tag = outletRef.tag;\n    var modelRef = new OutletModelReference(outletRef, env);\n    var map = (0, _util.dict)();\n    map.model = modelRef; // TODO: the functionailty to create a proper CapturedArgument should be\n    // exported by glimmer, or that it should provide an overload for `curry`\n    // that takes `PreparedArguments`\n\n    return {\n      tag,\n      positional: _runtime2.EMPTY_ARGS.positional,\n      named: {\n        tag,\n        map,\n        names: ['model'],\n        references: [modelRef],\n        length: 1,\n\n        has(key) {\n          return key === 'model';\n        },\n\n        get(key) {\n          return key === 'model' ? modelRef : _runtime2.UNDEFINED_REFERENCE;\n        },\n\n        value() {\n          var model = modelRef.value();\n          return {\n            model\n          };\n        }\n\n      },\n      length: 1,\n\n      value() {\n        return {\n          named: this.named.value(),\n          positional: this.positional.value()\n        };\n      }\n\n    };\n  }\n\n  function stateFor(ref) {\n    var outlet = ref.value();\n    if (outlet === undefined) return null;\n    var render = outlet.render;\n    if (render === undefined) return null;\n    var template$$1 = render.template;\n    if (template$$1 === undefined) return null; // this guard can be removed once @ember/test-helpers@1.6.0 has \"aged out\"\n    // and is no longer considered supported\n\n    if (isTemplateFactory(template$$1)) {\n      template$$1 = template$$1(render.owner);\n    }\n\n    return {\n      ref,\n      name: render.name,\n      outlet: render.outlet,\n      template: template$$1,\n      controller: render.controller,\n      model: render.model\n    };\n  }\n\n  function validate(state, lastState) {\n    if (state === null) {\n      return lastState === null;\n    }\n\n    if (lastState === null) {\n      return false;\n    }\n\n    return state.template === lastState.template && state.controller === lastState.controller;\n  }\n\n  var TEMPLATES = new WeakMap();\n  var getPrototypeOf = Object.getPrototypeOf;\n\n  function setComponentTemplate(factory, obj) {\n    (true && !(obj !== null && (typeof obj === 'object' || typeof obj === 'function')) && (0, _debug.assert)(`Cannot call \\`setComponentTemplate\\` on \\`${(0, _utils.toString)(obj)}\\``, obj !== null && (typeof obj === 'object' || typeof obj === 'function')));\n    (true && !(!TEMPLATES.has(obj)) && (0, _debug.assert)(`Cannot call \\`setComponentTemplate\\` multiple times on the same class (\\`${obj}\\`)`, !TEMPLATES.has(obj)));\n    TEMPLATES.set(obj, factory);\n    return obj;\n  }\n\n  function getComponentTemplate(obj) {\n    var pointer = obj;\n\n    while (pointer !== undefined && pointer !== null) {\n      var _template = TEMPLATES.get(pointer);\n\n      if (_template !== undefined) {\n        return _template;\n      }\n\n      pointer = getPrototypeOf(pointer);\n    }\n\n    return null;\n  }\n\n  var MANAGERS = new WeakMap();\n  var getPrototypeOf$1 = Object.getPrototypeOf;\n\n  function setManager(wrapper, obj) {\n    MANAGERS.set(obj, wrapper);\n    return obj;\n  }\n\n  function getManager(obj) {\n    var pointer = obj;\n\n    while (pointer !== undefined && pointer !== null) {\n      var manager = MANAGERS.get(pointer);\n\n      if (manager !== undefined) {\n        return manager;\n      }\n\n      pointer = getPrototypeOf$1(pointer);\n    }\n\n    return null;\n  }\n\n  function setModifierManager(factory, obj) {\n    return setManager({\n      factory,\n      internal: false,\n      type: 'modifier'\n    }, obj);\n  }\n\n  function getModifierManager(obj) {\n    var wrapper = getManager(obj);\n\n    if (wrapper && !wrapper.internal && wrapper.type === 'modifier') {\n      return wrapper.factory;\n    } else {\n      return undefined;\n    }\n  }\n\n  function instrumentationPayload$1(name) {\n    return {\n      object: `component:${name}`\n    };\n  }\n\n  function makeOptions(moduleName, namespace) {\n    return {\n      source: moduleName !== undefined ? `template:${moduleName}` : undefined,\n      namespace\n    };\n  }\n\n  function componentFor(name, owner, options) {\n    var fullName = `component:${name}`;\n    return owner.factoryFor(fullName, options) || null;\n  }\n\n  function layoutFor(name, owner, options) {\n    var templateFullName = `template:components/${name}`;\n    return owner.lookup(templateFullName, options) || null;\n  }\n\n  function lookupComponentPair(owner, name, options) {\n    var component = componentFor(name, owner, options);\n    {\n      if (component !== null && component.class !== undefined) {\n        var _layout = getComponentTemplate(component.class);\n\n        if (_layout !== null) {\n          return {\n            component,\n            layout: _layout\n          };\n        }\n      }\n    }\n    var layout = layoutFor(name, owner, options);\n\n    if (component === null && layout === null) {\n      return null;\n    } else {\n      return {\n        component,\n        layout\n      };\n    }\n  }\n\n  function lookupComponent(owner, name, options) {\n    if (options.source || options.namespace) {\n      var pair = lookupComponentPair(owner, name, options);\n\n      if (pair !== null) {\n        return pair;\n      }\n    }\n\n    return lookupComponentPair(owner, name);\n  }\n\n  var lookupPartial;\n  var templateFor;\n  var parseUnderscoredName;\n\n  if (_deprecatedFeatures.PARTIALS) {\n    lookupPartial = function (templateName, owner) {\n      (true && !(false) && (0, _debug.deprecate)(`The use of \\`{{partial}}\\` is deprecated, please refactor the \"${templateName}\" partial to a component`, false, {\n        id: 'ember-views.partial',\n        until: '4.0.0',\n        url: 'https://deprecations.emberjs.com/v3.x#toc_ember-views-partial'\n      }));\n\n      if (templateName === null) {\n        return;\n      }\n\n      var template = templateFor(owner, parseUnderscoredName(templateName), templateName);\n      (true && !(Boolean(template)) && (0, _debug.assert)(`Unable to find partial with name \"${templateName}\"`, Boolean(template)));\n      return template;\n    };\n\n    templateFor = function (owner, underscored, name) {\n      if (_deprecatedFeatures.PARTIALS) {\n        if (!name) {\n          return;\n        }\n\n        (true && !(name.indexOf('.') === -1) && (0, _debug.assert)(`templateNames are not allowed to contain periods: ${name}`, name.indexOf('.') === -1));\n\n        if (!owner) {\n          throw new _error.default('Container was not found when looking up a views template. ' + 'This is most likely due to manually instantiating an Ember.View. ' + 'See: http://git.io/EKPpnA');\n        }\n\n        return owner.lookup(`template:${underscored}`) || owner.lookup(`template:${name}`);\n      }\n    };\n\n    parseUnderscoredName = function (templateName) {\n      var nameParts = templateName.split('/');\n      var lastPart = nameParts[nameParts.length - 1];\n      nameParts[nameParts.length - 1] = `_${lastPart}`;\n      return nameParts.join('/');\n    };\n  }\n\n  var BUILTINS_HELPERS = {\n    if: inlineIf,\n    action,\n    array,\n    concat: concat$1,\n    fn: fn$1,\n    get: get$1,\n    hash,\n    log: log$1,\n    mut,\n    'query-params': queryParams$1,\n    readonly,\n    unbound,\n    unless: inlineUnless,\n    '-hash': hash,\n    '-each-in': eachIn,\n    '-input-type': inputTypeHelper$1,\n    '-normalize-class': normalizeClassHelper,\n    '-track-array': trackArray,\n    '-get-dynamic-var': _runtime2.getDynamicVar,\n    '-mount': mountHelper,\n    '-outlet': outletHelper,\n    '-assert-implicit-component-helper-argument': componentAssertionHelper\n  };\n\n  class RuntimeResolver {\n    constructor(isInteractive) {\n      this.handles = [undefined];\n      this.objToHandle = new WeakMap();\n      this.builtInHelpers = BUILTINS_HELPERS;\n      this.componentDefinitionCache = new Map();\n      this.componentDefinitionCount = 0;\n      this.helperDefinitionCount = 0;\n      this.isInteractive = isInteractive;\n      this.builtInModifiers = {\n        action: {\n          manager: new ActionModifierManager(),\n          state: null\n        },\n        on: {\n          manager: new OnModifierManager(isInteractive),\n          state: null\n        }\n      };\n    }\n    /***  IRuntimeResolver ***/\n\n    /**\n     * public componentDefHandleCount = 0;\n     * Called while executing Append Op.PushDynamicComponentManager if string\n     */\n\n\n    lookupComponent(name, meta) {\n      var handle = this.lookupComponentHandle(name, meta);\n\n      if (handle === null) {\n        (true && !(false) && (0, _debug.assert)(`Could not find component named \"${name}\" (no component or template with that name was found)`));\n        return null;\n      }\n\n      return this.resolve(handle);\n    }\n\n    lookupComponentHandle(name, meta) {\n      var nextHandle = this.handles.length;\n      var handle = this.handle(this._lookupComponentDefinition(name, meta));\n      (true && !(!(name === 'text-area' && handle === null)) && (0, _debug.assert)('Could not find component `<TextArea />` (did you mean `<Textarea />`?)', !(name === 'text-area' && handle === null)));\n\n      if (nextHandle === handle) {\n        this.componentDefinitionCount++;\n      }\n\n      return handle;\n    }\n    /**\n     * Called by RuntimeConstants to lookup unresolved handles.\n     */\n\n\n    resolve(handle) {\n      return this.handles[handle];\n    } // End IRuntimeResolver\n\n    /**\n     * Called by CompileTimeLookup compiling Unknown or Helper OpCode\n     */\n\n\n    lookupHelper(name, meta) {\n      var nextHandle = this.handles.length;\n\n      var helper$$1 = this._lookupHelper(name, meta);\n\n      if (helper$$1 !== null) {\n        var handle = this.handle(helper$$1);\n\n        if (nextHandle === handle) {\n          this.helperDefinitionCount++;\n        }\n\n        return handle;\n      }\n\n      return null;\n    }\n    /**\n     * Called by CompileTimeLookup compiling the\n     */\n\n\n    lookupModifier(name, meta) {\n      return this.handle(this._lookupModifier(name, meta));\n    }\n    /**\n     * Called by CompileTimeLookup to lookup partial\n     */\n\n\n    lookupPartial(name, meta) {\n      if (_deprecatedFeatures.PARTIALS) {\n        var partial = this._lookupPartial(name, meta);\n\n        return this.handle(partial);\n      } else {\n        return null;\n      }\n    } // TODO: This isn't necessary in all embedding environments, we should likely\n    // make it optional within Glimmer-VM\n\n\n    compilable() {} // end CompileTimeLookup\n    // needed for lazy compile time lookup\n\n\n    handle(obj) {\n      if (obj === undefined || obj === null) {\n        return null;\n      }\n\n      var handle = this.objToHandle.get(obj);\n\n      if (handle === undefined) {\n        handle = this.handles.push(obj) - 1;\n        this.objToHandle.set(obj, handle);\n      }\n\n      return handle;\n    }\n\n    _lookupHelper(_name, meta) {\n      (true && !(!(this.builtInHelpers[_name] && meta.owner.hasRegistration(`helper:${_name}`))) && (0, _debug.assert)(`You attempted to overwrite the built-in helper \"${_name}\" which is not allowed. Please rename the helper.`, !(this.builtInHelpers[_name] && meta.owner.hasRegistration(`helper:${_name}`))));\n      var helper$$1 = this.builtInHelpers[_name];\n\n      if (helper$$1 !== undefined) {\n        return helper$$1;\n      }\n\n      var {\n        moduleName\n      } = meta;\n      var owner = meta.owner;\n      var name = _name;\n      var namespace = undefined;\n      var options = makeOptions(moduleName, namespace);\n      var factory = owner.factoryFor(`helper:${name}`, options) || owner.factoryFor(`helper:${name}`);\n\n      if (!isHelperFactory(factory)) {\n        return null;\n      }\n\n      return (args, vm) => {\n        var helper$$1 = factory.create();\n\n        if (isClassHelper(helper$$1)) {\n          vm.associateDestroyable({\n            destroy() {\n              helper$$1.destroy();\n            }\n\n          });\n        } else if (true\n        /* DEBUG */\n        ) {\n          // Bind to null in case someone accidentally passed an unbound function\n          // in, and attempts use `this` on it.\n          //\n          // TODO: Update buildUntouchableThis to be flexible enough to provide a\n          // nice error message here.\n          helper$$1.compute = helper$$1.compute.bind(null);\n        }\n\n        return new EmberHelperRootReference(helper$$1, args.capture(), vm.env);\n      };\n    }\n\n    _lookupPartial(name, meta) {\n      var owner = meta.owner;\n      var templateFactory$$1 = lookupPartial(name, owner);\n      var template = templateFactory$$1(owner);\n      return new _opcodeCompiler.PartialDefinitionImpl(name, template);\n    }\n\n    _lookupModifier(name, meta) {\n      var builtin = this.builtInModifiers[name];\n\n      if (builtin === undefined) {\n        var owner = meta.owner;\n        var modifier = owner.factoryFor(`modifier:${name}`);\n\n        if (modifier !== undefined) {\n          var managerFactory = getModifierManager(modifier.class);\n          var manager = managerFactory(owner);\n          return new CustomModifierDefinition(name, modifier, manager, this.isInteractive);\n        }\n      }\n\n      return builtin;\n    }\n\n    _parseNameForNamespace(_name) {\n      var name = _name;\n      var namespace = undefined;\n\n      var namespaceDelimiterOffset = _name.indexOf('::');\n\n      if (namespaceDelimiterOffset !== -1) {\n        name = _name.slice(namespaceDelimiterOffset + 2);\n        namespace = _name.slice(0, namespaceDelimiterOffset);\n      }\n\n      return {\n        name,\n        namespace\n      };\n    }\n\n    _lookupComponentDefinition(_name, meta) {\n      var name = _name;\n      var namespace = undefined;\n      var owner = meta.owner;\n      var {\n        moduleName\n      } = meta;\n      var pair = lookupComponent(owner, name, makeOptions(moduleName, namespace));\n\n      if (pair === null) {\n        return null;\n      }\n\n      var layout;\n      var key;\n\n      if (pair.component === null) {\n        key = layout = pair.layout(owner);\n      } else {\n        key = pair.component;\n      }\n\n      var cachedComponentDefinition = this.componentDefinitionCache.get(key);\n\n      if (cachedComponentDefinition !== undefined) {\n        return cachedComponentDefinition;\n      }\n\n      if (layout === undefined && pair.layout !== null) {\n        layout = pair.layout(owner);\n      }\n\n      var finalizer = (0, _instrumentation._instrumentStart)('render.getComponentDefinition', instrumentationPayload$1, name);\n      var definition = null;\n\n      if (pair.component === null) {\n        if (_environment2.ENV._TEMPLATE_ONLY_GLIMMER_COMPONENTS) {\n          definition = new TemplateOnlyComponentDefinition(name, layout);\n        }\n      } else if (true\n      /* EMBER_GLIMMER_SET_COMPONENT_TEMPLATE */\n      && (0, _templateOnly.isTemplateOnlyComponent)(pair.component.class)) {\n        definition = new TemplateOnlyComponentDefinition(name, layout);\n      }\n\n      if (pair.component !== null) {\n        (true && !(pair.component.class !== undefined) && (0, _debug.assert)(`missing component class ${name}`, pair.component.class !== undefined));\n        var ComponentClass = pair.component.class;\n        var wrapper = getManager(ComponentClass);\n\n        if (wrapper !== null && wrapper.type === 'component') {\n          var {\n            factory\n          } = wrapper;\n\n          if (wrapper.internal) {\n            (true && !(pair.layout !== null) && (0, _debug.assert)(`missing layout for internal component ${name}`, pair.layout !== null));\n            definition = new InternalComponentDefinition(factory(owner), ComponentClass, layout);\n          } else {\n            definition = new CustomManagerDefinition(name, pair.component, factory(owner), layout !== undefined ? layout : owner.lookup((0, _container.privatize)`template:components/-default`)(owner));\n          }\n        }\n      }\n\n      if (definition === null) {\n        definition = new CurlyComponentDefinition(name, pair.component || owner.factoryFor((0, _container.privatize)`component:-default`), layout);\n      }\n\n      finalizer();\n      this.componentDefinitionCache.set(key, definition);\n      return definition;\n    }\n\n  }\n\n  function hashToArgs(hash) {\n    if (hash === null) return null;\n    var names = hash[0].map(key => `@${key}`);\n    return [names, hash[1]];\n  }\n\n  var experimentalMacros = []; // This is a private API to allow for experimental macros\n  // to be created in user space. Registering a macro should\n  // should be done in an initializer.\n\n  _exports._experimentalMacros = experimentalMacros;\n\n  function registerMacros(macro) {\n    experimentalMacros.push(macro);\n  }\n\n  function refineInlineSyntax(name, params, hash, context) {\n    var component = context.resolver.lookupComponent(name, context.meta.referrer);\n\n    if (component !== null) {\n      return (0, _opcodeCompiler.staticComponent)(component, [params === null ? [] : params, hashToArgs(hash), _opcodeCompiler.EMPTY_BLOCKS]);\n    }\n\n    return _opcodeCompiler.UNHANDLED;\n  }\n\n  function refineBlockSyntax(name, params, hash, blocks, context) {\n    var handle = context.resolver.lookupComponent(name, context.meta.referrer);\n\n    if (handle !== null) {\n      return (0, _opcodeCompiler.staticComponent)(handle, [params, hashToArgs(hash), blocks]);\n    }\n\n    (true && !(context.meta.referrer.owner.hasRegistration(`helper:${name}`)) && (0, _debug.assert)(`A component or helper named \"${name}\" could not be found`, context.meta.referrer.owner.hasRegistration(`helper:${name}`)));\n    (true && !(!(() => {\n      var resolver = context.resolver['inner']['resolver'];\n      var {\n        moduleName,\n        owner\n      } = context.meta.referrer;\n\n      if (name === 'component' || resolver['builtInHelpers'][name]) {\n        return true;\n      }\n\n      var options = {\n        source: `template:${moduleName}`\n      };\n      return owner.hasRegistration(`helper:${name}`, options) || owner.hasRegistration(`helper:${name}`);\n    })()) && (0, _debug.assert)(`Helpers may not be used in the block form, for example {{#${name}}}{{/${name}}}. Please use a component, or alternatively use the helper in combination with a built-in Ember helper, for example {{#if (${name})}}{{/if}}.`, !(() => {\n      var resolver = context.resolver['inner']['resolver'];\n      var {\n        moduleName,\n        owner\n      } = context.meta.referrer;\n\n      if (name === 'component' || resolver['builtInHelpers'][name]) {\n        return true;\n      }\n\n      var options = {\n        source: `template:${moduleName}`\n      };\n      return owner.hasRegistration(`helper:${name}`, options) || owner.hasRegistration(`helper:${name}`);\n    })()));\n    return _opcodeCompiler.NONE;\n  }\n\n  function populateMacros(macros) {\n    var {\n      inlines,\n      blocks\n    } = macros;\n    inlines.addMissing(refineInlineSyntax);\n    blocks.addMissing(refineBlockSyntax);\n\n    for (var i = 0; i < experimentalMacros.length; i++) {\n      var macro = experimentalMacros[i];\n      macro(blocks, inlines);\n    }\n\n    return {\n      blocks,\n      inlines\n    };\n  }\n\n  class DynamicScope {\n    constructor(view, outletState) {\n      this.view = view;\n      this.outletState = outletState;\n    }\n\n    child() {\n      return new DynamicScope(this.view, this.outletState);\n    }\n\n    get(key) {\n      // tslint:disable-next-line:max-line-length\n      (true && !(key === 'outletState') && (0, _debug.assert)(`Using \\`-get-dynamic-scope\\` is only supported for \\`outletState\\` (you used \\`${key}\\`).`, key === 'outletState'));\n      return this.outletState;\n    }\n\n    set(key, value) {\n      // tslint:disable-next-line:max-line-length\n      (true && !(key === 'outletState') && (0, _debug.assert)(`Using \\`-with-dynamic-scope\\` is only supported for \\`outletState\\` (you used \\`${key}\\`).`, key === 'outletState'));\n      this.outletState = value;\n      return value;\n    }\n\n  }\n\n  class RootState {\n    constructor(root, runtime, context, template, self, parentElement, dynamicScope, builder) {\n      this.root = root;\n      this.runtime = runtime;\n      (true && !(template !== undefined) && (0, _debug.assert)(`You cannot render \\`${self.value()}\\` without a template.`, template !== undefined));\n      this.id = (0, _views.getViewId)(root);\n      this.result = undefined;\n      this.destroyed = false;\n\n      this.render = () => {\n        var layout = (0, _util.unwrapTemplate)(template).asLayout();\n        var handle = layout.compile(context);\n        var iterator = (0, _runtime2.renderJitMain)(runtime, context, self, builder(runtime.env, {\n          element: parentElement,\n          nextSibling: null\n        }), (0, _util.unwrapHandle)(handle), dynamicScope);\n        var iteratorResult;\n\n        do {\n          iteratorResult = iterator.next();\n        } while (!iteratorResult.done);\n\n        var result = this.result = iteratorResult.value; // override .render function after initial render\n\n        this.render = () => result.rerender({\n          alwaysRevalidate: false\n        });\n      };\n    }\n\n    isFor(possibleRoot) {\n      return this.root === possibleRoot;\n    }\n\n    destroy() {\n      var {\n        result,\n        runtime: {\n          env\n        }\n      } = this;\n      this.destroyed = true;\n      this.runtime = undefined;\n      this.root = null;\n      this.result = undefined;\n      this.render = undefined;\n\n      if (result) {\n        /*\n         Handles these scenarios:\n                * When roots are removed during standard rendering process, a transaction exists already\n           `.begin()` / `.commit()` are not needed.\n         * When roots are being destroyed manually (`component.append(); component.destroy() case), no\n           transaction exists already.\n         * When roots are being destroyed during `Renderer#destroy`, no transaction exists\n                */\n        (0, _runtime2.inTransaction)(env, () => result.destroy());\n      }\n    }\n\n  }\n\n  var renderers = [];\n\n  function _resetRenderers() {\n    renderers.length = 0;\n  }\n\n  function register(renderer) {\n    (true && !(renderers.indexOf(renderer) === -1) && (0, _debug.assert)('Cannot register the same renderer twice', renderers.indexOf(renderer) === -1));\n    renderers.push(renderer);\n  }\n\n  function deregister(renderer) {\n    var index = renderers.indexOf(renderer);\n    (true && !(index !== -1) && (0, _debug.assert)('Cannot deregister unknown unregistered renderer', index !== -1));\n    renderers.splice(index, 1);\n  }\n\n  function loopBegin() {\n    for (var i = 0; i < renderers.length; i++) {\n      renderers[i]._scheduleRevalidate();\n    }\n  }\n\n  function K() {\n    /* noop */\n  }\n\n  var renderSettledDeferred = null;\n  /*\n    Returns a promise which will resolve when rendering has settled. Settled in\n    this context is defined as when all of the tags in use are \"current\" (e.g.\n    `renderers.every(r => r._isValid())`). When this is checked at the _end_ of\n    the run loop, this essentially guarantees that all rendering is completed.\n  \n    @method renderSettled\n    @returns {Promise<void>} a promise which fulfills when rendering has settled\n  */\n\n  function renderSettled() {\n    if (renderSettledDeferred === null) {\n      renderSettledDeferred = _rsvp.default.defer(); // if there is no current runloop, the promise created above will not have\n      // a chance to resolve (because its resolved in backburner's \"end\" event)\n\n      if (!(0, _runloop.getCurrentRunLoop)()) {\n        // ensure a runloop has been kicked off\n        _runloop.backburner.schedule('actions', null, K);\n      }\n    }\n\n    return renderSettledDeferred.promise;\n  }\n\n  function resolveRenderPromise() {\n    if (renderSettledDeferred !== null) {\n      var resolve = renderSettledDeferred.resolve;\n      renderSettledDeferred = null;\n\n      _runloop.backburner.join(null, resolve);\n    }\n  }\n\n  var loops = 0;\n\n  function loopEnd() {\n    for (var i = 0; i < renderers.length; i++) {\n      if (!renderers[i]._isValid()) {\n        if (loops > _environment2.ENV._RERENDER_LOOP_LIMIT) {\n          loops = 0; // TODO: do something better\n\n          renderers[i].destroy();\n          throw new Error('infinite rendering invalidation detected');\n        }\n\n        loops++;\n        return _runloop.backburner.join(null, K);\n      }\n    }\n\n    loops = 0;\n    resolveRenderPromise();\n  }\n\n  _runloop.backburner.on('begin', loopBegin);\n\n  _runloop.backburner.on('end', loopEnd);\n\n  class Renderer {\n    constructor(owner, document, env, rootTemplate, viewRegistry, destinedForDOM = false, builder = _runtime2.clientBuilder) {\n      this._inRenderTransaction = false;\n      this._lastRevision = -1;\n      this._destroyed = false;\n      this._rootTemplate = rootTemplate(owner);\n      this._viewRegistry = viewRegistry;\n      this._destinedForDOM = destinedForDOM;\n      this._roots = [];\n      this._removedRoots = [];\n      this._builder = builder; // resolver is exposed for tests\n\n      var runtimeResolver = this._runtimeResolver = new RuntimeResolver(env.isInteractive);\n      var compileTimeResolver = new CompileTimeResolver(runtimeResolver);\n      var context = this._context = (0, _opcodeCompiler.JitContext)(compileTimeResolver);\n      populateMacros(context.macros);\n      var runtimeEnvironmentDelegate = new EmberEnvironmentDelegate(owner, env.isInteractive);\n      this._runtime = (0, _runtime2.JitRuntime)({\n        appendOperations: env.hasDOM ? new _runtime2.DOMTreeConstruction(document) : new _node.NodeDOMTreeConstruction(document),\n        updateOperations: new _runtime2.DOMChanges(document)\n      }, runtimeEnvironmentDelegate, context, runtimeResolver);\n    }\n\n    get debugRenderTree() {\n      return this._runtime.env.extra.debugRenderTree;\n    } // renderer HOOKS\n\n\n    appendOutletView(view, target) {\n      var definition = createRootOutlet(view);\n\n      this._appendDefinition(view, (0, _runtime2.curry)(definition), target);\n    }\n\n    appendTo(view, target) {\n      var definition = new RootComponentDefinition(view);\n\n      this._appendDefinition(view, (0, _runtime2.curry)(definition), target);\n    }\n\n    _appendDefinition(root, definition, target) {\n      var self = new UnboundRootReference(definition, this._runtime.env);\n      var dynamicScope = new DynamicScope(null, _runtime2.UNDEFINED_REFERENCE);\n      var rootState = new RootState(root, this._runtime, this._context, this._rootTemplate, self, target, dynamicScope, this._builder);\n\n      this._renderRoot(rootState);\n    }\n\n    rerender() {\n      this._scheduleRevalidate();\n    }\n\n    register(view) {\n      var id = (0, _views.getViewId)(view);\n      (true && !(!this._viewRegistry[id]) && (0, _debug.assert)('Attempted to register a view with an id already in use: ' + id, !this._viewRegistry[id]));\n      this._viewRegistry[id] = view;\n    }\n\n    unregister(view) {\n      delete this._viewRegistry[(0, _views.getViewId)(view)];\n    }\n\n    remove(view) {\n      view._transitionTo('destroying');\n\n      this.cleanupRootFor(view);\n\n      if (this._destinedForDOM) {\n        view.trigger('didDestroyElement');\n      }\n    }\n\n    cleanupRootFor(view) {\n      // no need to cleanup roots if we have already been destroyed\n      if (this._destroyed) {\n        return;\n      }\n\n      var roots = this._roots; // traverse in reverse so we can remove items\n      // without mucking up the index\n\n      var i = this._roots.length;\n\n      while (i--) {\n        var root = roots[i];\n\n        if (root.isFor(view)) {\n          root.destroy();\n          roots.splice(i, 1);\n        }\n      }\n    }\n\n    destroy() {\n      if (this._destroyed) {\n        return;\n      }\n\n      this._destroyed = true;\n\n      this._clearAllRoots();\n    }\n\n    getBounds(view) {\n      var bounds = view[BOUNDS];\n      (true && !(Boolean(bounds)) && (0, _debug.assert)('object passed to getBounds must have the BOUNDS symbol as a property', Boolean(bounds)));\n      var parentElement = bounds.parentElement();\n      var firstNode = bounds.firstNode();\n      var lastNode = bounds.lastNode();\n      return {\n        parentElement,\n        firstNode,\n        lastNode\n      };\n    }\n\n    createElement(tagName) {\n      return this._runtime.env.getAppendOperations().createElement(tagName);\n    }\n\n    _renderRoot(root) {\n      var {\n        _roots: roots\n      } = this;\n      roots.push(root);\n\n      if (roots.length === 1) {\n        register(this);\n      }\n\n      this._renderRootsTransaction();\n    }\n\n    _renderRoots() {\n      var {\n        _roots: roots,\n        _runtime: runtime,\n        _removedRoots: removedRoots\n      } = this;\n      var initialRootsLength;\n\n      do {\n        initialRootsLength = roots.length;\n        (0, _runtime2.inTransaction)(runtime.env, () => {\n          // ensure that for the first iteration of the loop\n          // each root is processed\n          for (var i = 0; i < roots.length; i++) {\n            var root = roots[i];\n\n            if (root.destroyed) {\n              // add to the list of roots to be removed\n              // they will be removed from `this._roots` later\n              removedRoots.push(root); // skip over roots that have been marked as destroyed\n\n              continue;\n            } // when processing non-initial reflush loops,\n            // do not process more roots than needed\n\n\n            if (i >= initialRootsLength) {\n              continue;\n            }\n\n            if (true\n            /* DEBUG */\n            ) {\n              // run in an autotracking transaction to prevent backflow errors.\n              // we use `bind` here to avoid creating a closure (and requiring a\n              // hoisted variable).\n              (0, _validator.runInAutotrackingTransaction)(root.render.bind(root));\n            } else {\n              root.render();\n            }\n          }\n\n          this._lastRevision = (0, _validator.valueForTag)(_validator.CURRENT_TAG);\n        });\n      } while (roots.length > initialRootsLength); // remove any roots that were destroyed during this transaction\n\n\n      while (removedRoots.length) {\n        var root = removedRoots.pop();\n        var rootIndex = roots.indexOf(root);\n        roots.splice(rootIndex, 1);\n      }\n\n      if (this._roots.length === 0) {\n        deregister(this);\n      }\n    }\n\n    _renderRootsTransaction() {\n      if (this._inRenderTransaction) {\n        // currently rendering roots, a new root was added and will\n        // be processed by the existing _renderRoots invocation\n        return;\n      } // used to prevent calling _renderRoots again (see above)\n      // while we are actively rendering roots\n\n\n      this._inRenderTransaction = true;\n      var completedWithoutError = false;\n\n      try {\n        this._renderRoots();\n\n        completedWithoutError = true;\n      } finally {\n        if (!completedWithoutError) {\n          this._lastRevision = (0, _validator.valueForTag)(_validator.CURRENT_TAG);\n        }\n\n        this._inRenderTransaction = false;\n      }\n    }\n\n    _clearAllRoots() {\n      var roots = this._roots;\n\n      for (var i = 0; i < roots.length; i++) {\n        var root = roots[i];\n        root.destroy();\n      }\n\n      this._removedRoots.length = 0;\n      this._roots = []; // if roots were present before destroying\n      // deregister this renderer instance\n\n      if (roots.length) {\n        deregister(this);\n      }\n    }\n\n    _scheduleRevalidate() {\n      _runloop.backburner.scheduleOnce('render', this, this._revalidate);\n    }\n\n    _isValid() {\n      return this._destroyed || this._roots.length === 0 || (0, _validator.validateTag)(_validator.CURRENT_TAG, this._lastRevision);\n    }\n\n    _revalidate() {\n      if (this._isValid()) {\n        return;\n      }\n\n      this._renderRootsTransaction();\n    }\n\n  }\n\n  _exports.Renderer = Renderer;\n\n  class InertRenderer extends Renderer {\n    static create({\n      [_owner.OWNER]: owner,\n      document,\n      env,\n      rootTemplate,\n      _viewRegistry,\n      builder\n    }) {\n      return new this(owner, document, env, rootTemplate, _viewRegistry, false, builder);\n    }\n\n    getElement(_view) {\n      throw new Error('Accessing `this.element` is not allowed in non-interactive environments (such as FastBoot).');\n    }\n\n  }\n\n  _exports.InertRenderer = InertRenderer;\n\n  class InteractiveRenderer extends Renderer {\n    static create({\n      [_owner.OWNER]: owner,\n      document,\n      env,\n      rootTemplate,\n      _viewRegistry,\n      builder\n    }) {\n      return new this(owner, document, env, rootTemplate, _viewRegistry, true, builder);\n    }\n\n    getElement(view) {\n      return (0, _views.getViewElement)(view);\n    }\n\n  }\n\n  _exports.InteractiveRenderer = InteractiveRenderer;\n  var TEMPLATES$1 = {};\n\n  function setTemplates(templates) {\n    TEMPLATES$1 = templates;\n  }\n\n  function getTemplates() {\n    return TEMPLATES$1;\n  }\n\n  function getTemplate(name) {\n    if (TEMPLATES$1.hasOwnProperty(name)) {\n      return TEMPLATES$1[name];\n    }\n  }\n\n  function hasTemplate(name) {\n    return TEMPLATES$1.hasOwnProperty(name);\n  }\n\n  function setTemplate(name, template) {\n    return TEMPLATES$1[name] = template;\n  }\n\n  var CAPABILITIES$4 = {\n    dynamicLayout: false,\n    dynamicTag: false,\n    prepareArgs: true,\n    createArgs: true,\n    attributeHook: false,\n    elementHook: false,\n    createCaller: true,\n    dynamicScope: false,\n    updateHook: true,\n    createInstance: true,\n    wrapped: false,\n    willDestroy: false\n  };\n  var EMPTY_POSITIONAL_ARGS$1 = [];\n  (0, _debug.debugFreeze)(EMPTY_POSITIONAL_ARGS$1);\n\n  class InputComponentManager extends InternalManager {\n    getCapabilities() {\n      return CAPABILITIES$4;\n    }\n\n    prepareArgs(_state, args) {\n      (true && !(args.positional.length === 0) && (0, _debug.assert)('The `<Input />` component does not take any positional arguments', args.positional.length === 0));\n      var __ARGS__ = args.named.capture().map;\n      return {\n        positional: EMPTY_POSITIONAL_ARGS$1,\n        named: {\n          __ARGS__: new _reference.ConstReference(__ARGS__),\n          type: args.named.get('type')\n        }\n      };\n    }\n\n    create(env, {\n      ComponentClass,\n      layout\n    }, args, _dynamicScope, caller) {\n      (true && !((0, _validator.isConst)(caller)) && (0, _debug.assert)('caller must be const', (0, _validator.isConst)(caller)));\n      var type = args.named.get('type');\n      var instance = ComponentClass.create({\n        caller: caller.value(),\n        type: type.value()\n      });\n      var state = {\n        env,\n        type,\n        instance\n      };\n\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        env.extra.debugRenderTree.create(state, {\n          type: 'component',\n          name: 'input',\n          args: args.capture(),\n          instance,\n          template: layout\n        });\n      }\n\n      return state;\n    }\n\n    getSelf({\n      env,\n      instance\n    }) {\n      return new _reference.ComponentRootReference(instance, env);\n    }\n\n    getTag() {\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        // returning a const tag skips the update hook (VM BUG?)\n        return (0, _validator.createTag)();\n      } else {\n        // an outlet has no hooks\n        return _validator.CONSTANT_TAG;\n      }\n    }\n\n    didRenderLayout(state, bounds) {\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        state.env.extra.debugRenderTree.didRender(state, bounds);\n      }\n    }\n\n    update(state) {\n      (0, _metal.set)(state.instance, 'type', state.type.value());\n\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        state.env.extra.debugRenderTree.update(state);\n      }\n    }\n\n    didUpdateLayout(state, bounds) {\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        state.env.extra.debugRenderTree.didRender(state, bounds);\n      }\n    }\n\n    getDestructor(state) {\n      if (_environment2.ENV._DEBUG_RENDER_TREE) {\n        return {\n          destroy() {\n            state.env.extra.debugRenderTree.willDestroy(state);\n            state.instance.destroy();\n          }\n\n        };\n      } else {\n        return state.instance;\n      }\n    }\n\n  }\n\n  var InputComponentManagerFactory = owner => {\n    return new InputComponentManager(owner);\n  };\n  /**\n  @module @ember/component\n  */\n\n  /**\n    See [Ember.Templates.components.Input](/ember/release/classes/Ember.Templates.components/methods/Input?anchor=Input).\n  \n    @method input\n    @for Ember.Templates.helpers\n    @param {Hash} options\n    @public\n    */\n\n  /**\n    The `Input` component lets you create an HTML `<input>` element.\n  \n    ```handlebars\n    <Input @value=\"987\" />\n    ```\n  \n    creates an `<input>` element with `type=\"text\"` and value set to 987.\n  \n    ### Text field\n  \n    If no `type` argument is specified, a default of type 'text' is used.\n  \n    ```handlebars\n    Search:\n    <Input @value={{this.searchWord}} />\n    ```\n  \n    In this example, the initial value in the `<input>` will be set to the value of\n    `this.searchWord`. If the user changes the text, the value of `this.searchWord` will also be\n    updated.\n  \n    ### Actions\n  \n    The `Input` component takes a number of arguments with callbacks that are invoked in response to\n    user events.\n  \n    * `enter`\n    * `insert-newline`\n    * `escape-press`\n    * `focus-in`\n    * `focus-out`\n    * `key-down`\n    * `key-press`\n    * `key-up`\n  \n    These callbacks are passed to `Input` like this:\n  \n    ```handlebars\n    <Input @value={{this.searchWord}} @enter={{this.query}} />\n    ```\n  \n    ### `<input>` HTML Attributes to Avoid\n  \n    In most cases, if you want to pass an attribute to the underlying HTML `<input>` element, you\n    can pass the attribute directly, just like any other Ember component.\n  \n    ```handlebars\n    <Input @type=\"text\" size=\"10\" />\n    ```\n  \n    In this example, the `size` attribute will be applied to the underlying `<input>` element in the\n    outputted HTML.\n  \n    However, there are a few attributes where you **must** use the `@` version.\n  \n    * `@type`: This argument is used to control which Ember component is used under the hood\n    * `@value`: The `@value` argument installs a two-way binding onto the element. If you wanted a\n      one-way binding, use `<input>` with the `value` property and the `input` event instead.\n    * `@checked` (for checkboxes): like `@value`, the `@checked` argument installs a two-way binding\n      onto the element. If you wanted a one-way binding, use `<input type=\"checkbox\">` with\n      `checked` and the `input` event instead.\n  \n    ### Extending `TextField`\n  \n    Internally, `<Input @type=\"text\" />` creates an instance of `TextField`, passing arguments from\n    the helper to `TextField`'s `create` method. Subclassing `TextField` is supported but not\n    recommended.\n  \n    See [TextField](/ember/release/classes/TextField)\n  \n    ### Checkbox\n  \n    To create an `<input type=\"checkbox\">`:\n  \n    ```handlebars\n    Emberize Everything:\n    <Input @type=\"checkbox\" @checked={{this.isEmberized}} name=\"isEmberized\" />\n    ```\n  \n    This will bind the checked state of this checkbox to the value of `isEmberized` -- if either one\n    changes, it will be reflected in the other.\n  \n    ### Extending `Checkbox`\n  \n    Internally, `<Input @type=\"checkbox\" />` creates an instance of `Checkbox`. Subclassing\n    `TextField` is supported but not recommended.\n  \n    See [Checkbox](/ember/release/classes/Checkbox)\n  \n    @method Input\n    @for Ember.Templates.components\n    @see {TextField}\n    @see {Checkbox}\n    @param {Hash} options\n    @public\n  */\n\n\n  var Input = _runtime.Object.extend({\n    isCheckbox: (0, _metal.computed)('type', function () {\n      return this.type === 'checkbox';\n    })\n  });\n\n  setManager({\n    factory: InputComponentManagerFactory,\n    internal: true,\n    type: 'component'\n  }, Input);\n\n  Input.toString = () => '@ember/component/input';\n  /**\n  @module ember\n  */\n\n  /**\n    Calls [String.loc](/ember/release/classes/String/methods/loc?anchor=loc) with the\n    provided string. This is a convenient way to localize text within a template.\n    For example:\n  \n    ```javascript\n    Ember.STRINGS = {\n      '_welcome_': 'Bonjour'\n    };\n    ```\n  \n    ```handlebars\n    <div class='message'>\n      {{loc '_welcome_'}}\n    </div>\n    ```\n  \n    ```html\n    <div class='message'>\n      Bonjour\n    </div>\n    ```\n  \n    See [String.loc](/ember/release/classes/String/methods/loc?anchor=loc) for how to\n    set up localized string references.\n  \n    @method loc\n    @for Ember.Templates.helpers\n    @param {String} str The string to format.\n    @see {String#loc}\n    @public\n  */\n\n\n  var loc$1 = helper(function (params) {\n    return _string.loc.apply(null, params\n    /* let the other side handle errors */\n    );\n  });\n  var ComponentTemplate = template({\n    \"id\": \"RLf1peEf\",\n    \"block\": \"{\\\"symbols\\\":[\\\"&default\\\"],\\\"statements\\\":[[18,1,null]],\\\"hasEval\\\":false,\\\"upvars\\\":[]}\",\n    \"meta\": {\n      \"moduleName\": \"packages/@ember/-internals/glimmer/lib/templates/component.hbs\"\n    }\n  });\n  var InputTemplate = template({\n    \"id\": \"ExnzE3OS\",\n    \"block\": \"{\\\"symbols\\\":[\\\"Checkbox\\\",\\\"TextField\\\",\\\"@__ARGS__\\\",\\\"&attrs\\\"],\\\"statements\\\":[[6,[37,2],[[30,[36,1],[\\\"-checkbox\\\"],null],[30,[36,1],[\\\"-text-field\\\"],null]],null,[[\\\"default\\\"],[{\\\"statements\\\":[[6,[37,0],[[32,0,[\\\"isCheckbox\\\"]]],null,[[\\\"default\\\",\\\"else\\\"],[{\\\"statements\\\":[[8,[32,1],[[17,4]],[[\\\"@target\\\",\\\"@__ARGS__\\\"],[[32,0,[\\\"caller\\\"]],[32,3]]],null]],\\\"parameters\\\":[]},{\\\"statements\\\":[[8,[32,2],[[17,4]],[[\\\"@target\\\",\\\"@__ARGS__\\\"],[[32,0,[\\\"caller\\\"]],[32,3]]],null]],\\\"parameters\\\":[]}]]]],\\\"parameters\\\":[1,2]}]]]],\\\"hasEval\\\":false,\\\"upvars\\\":[\\\"if\\\",\\\"component\\\",\\\"let\\\"]}\",\n    \"meta\": {\n      \"moduleName\": \"packages/@ember/-internals/glimmer/lib/templates/input.hbs\"\n    }\n  });\n  var OutletTemplate = template({\n    \"id\": \"vA+C0Wde\",\n    \"block\": \"{\\\"symbols\\\":[],\\\"statements\\\":[[1,[30,[36,1],[[30,[36,0],null,null]],null]]],\\\"hasEval\\\":false,\\\"upvars\\\":[\\\"-outlet\\\",\\\"component\\\"]}\",\n    \"meta\": {\n      \"moduleName\": \"packages/@ember/-internals/glimmer/lib/templates/outlet.hbs\"\n    }\n  });\n  var TOP_LEVEL_NAME = '-top-level';\n  var TOP_LEVEL_OUTLET = 'main';\n\n  class OutletView {\n    constructor(_environment, renderer, owner, template) {\n      this._environment = _environment;\n      this.renderer = renderer;\n      this.owner = owner;\n      this.template = template;\n      var ref = this.ref = new RootOutletReference({\n        outlets: {\n          main: undefined\n        },\n        render: {\n          owner: owner,\n          into: undefined,\n          outlet: TOP_LEVEL_OUTLET,\n          name: TOP_LEVEL_NAME,\n          controller: undefined,\n          model: undefined,\n          template\n        }\n      });\n      this.state = {\n        ref,\n        name: TOP_LEVEL_NAME,\n        outlet: TOP_LEVEL_OUTLET,\n        template,\n        controller: undefined,\n        model: undefined\n      };\n    }\n\n    static extend(injections) {\n      return class extends OutletView {\n        static create(options) {\n          if (options) {\n            return super.create((0, _polyfills.assign)({}, injections, options));\n          } else {\n            return super.create(injections);\n          }\n        }\n\n      };\n    }\n\n    static reopenClass(injections) {\n      (0, _polyfills.assign)(this, injections);\n    }\n\n    static create(options) {\n      var {\n        _environment,\n        renderer,\n        template: templateFactory$$1\n      } = options;\n      var owner = options[_owner.OWNER];\n      var template = templateFactory$$1(owner);\n      return new OutletView(_environment, renderer, owner, template);\n    }\n\n    appendTo(selector) {\n      var target;\n\n      if (this._environment.hasDOM) {\n        target = typeof selector === 'string' ? document.querySelector(selector) : selector;\n      } else {\n        target = selector;\n      }\n\n      (0, _runloop.schedule)('render', this.renderer, 'appendOutletView', this, target);\n    }\n\n    rerender() {\n      /**/\n    }\n\n    setOutletState(state) {\n      this.ref.update(state);\n    }\n\n    destroy() {\n      /**/\n    }\n\n  }\n\n  _exports.OutletView = OutletView;\n\n  function setupApplicationRegistry(registry) {\n    registry.injection('renderer', 'env', '-environment:main'); // because we are using injections we can't use instantiate false\n    // we need to use bind() to copy the function so factory for\n    // association won't leak\n\n    registry.register('service:-dom-builder', {\n      create({\n        bootOptions\n      }) {\n        var {\n          _renderMode\n        } = bootOptions;\n\n        switch (_renderMode) {\n          case 'serialize':\n            return _node.serializeBuilder.bind(null);\n\n          case 'rehydrate':\n            return _runtime2.rehydrationBuilder.bind(null);\n\n          default:\n            return _runtime2.clientBuilder.bind(null);\n        }\n      }\n\n    });\n    registry.injection('service:-dom-builder', 'bootOptions', '-environment:main');\n    registry.injection('renderer', 'builder', 'service:-dom-builder');\n    registry.register((0, _container.privatize)`template:-root`, RootTemplate);\n    registry.injection('renderer', 'rootTemplate', (0, _container.privatize)`template:-root`);\n    registry.register('renderer:-dom', InteractiveRenderer);\n    registry.register('renderer:-inert', InertRenderer);\n    registry.injection('renderer', 'document', 'service:-document');\n  }\n\n  function setupEngineRegistry(registry) {\n    registry.optionsForType('template', {\n      instantiate: false\n    });\n    registry.register('view:-outlet', OutletView);\n    registry.register('template:-outlet', OutletTemplate);\n    registry.injection('view:-outlet', 'template', 'template:-outlet');\n    registry.register((0, _container.privatize)`template:components/-default`, ComponentTemplate);\n    registry.optionsForType('helper', {\n      instantiate: false\n    });\n    registry.register('helper:loc', loc$1);\n    registry.register('component:-text-field', TextField);\n    registry.register('component:-checkbox', Checkbox);\n    registry.register('component:link-to', LinkComponent);\n    registry.register('component:input', Input);\n    registry.register('template:components/input', InputTemplate);\n    registry.register('component:textarea', TextArea);\n\n    if (!_environment2.ENV._TEMPLATE_ONLY_GLIMMER_COMPONENTS) {\n      registry.register((0, _container.privatize)`component:-default`, Component);\n    }\n  }\n\n  function setComponentManager(stringOrFunction, obj) {\n    var factory;\n\n    if (_deprecatedFeatures.COMPONENT_MANAGER_STRING_LOOKUP && typeof stringOrFunction === 'string') {\n      (true && !(false) && (0, _debug.deprecate)('Passing the name of the component manager to \"setupComponentManager\" is deprecated. Please pass a function that produces an instance of the manager.', false, {\n        id: 'deprecate-string-based-component-manager',\n        until: '4.0.0',\n        url: 'https://emberjs.com/deprecations/v3.x/#toc_component-manager-string-lookup'\n      }));\n\n      factory = function (owner) {\n        return owner.lookup(`component-manager:${stringOrFunction}`);\n      };\n    } else {\n      factory = stringOrFunction;\n    }\n\n    return setManager({\n      factory,\n      internal: false,\n      type: 'component'\n    }, obj);\n  }\n\n  function getComponentManager(obj) {\n    var wrapper = getManager(obj);\n\n    if (wrapper && !wrapper.internal && wrapper.type === 'component') {\n      return wrapper.factory;\n    } else {\n      return undefined;\n    }\n  }\n  /**\n    [Glimmer](https://github.com/tildeio/glimmer) is a templating engine used by Ember.js that is compatible with a subset of the [Handlebars](http://handlebarsjs.com/) syntax.\n  \n    ### Showing a property\n  \n    Templates manage the flow of an application's UI, and display state (through\n    the DOM) to a user. For example, given a component with the property \"name\",\n    that component's template can use the name in several ways:\n  \n    ```app/components/person-profile.js\n    import Component from '@ember/component';\n  \n    export default Component.extend({\n      name: 'Jill'\n    });\n    ```\n  \n    ```app/components/person-profile.hbs\n    {{this.name}}\n    <div>{{this.name}}</div>\n    <span data-name={{this.name}}></span>\n    ```\n  \n    Any time the \"name\" property on the component changes, the DOM will be\n    updated.\n  \n    Properties can be chained as well:\n  \n    ```handlebars\n    {{@aUserModel.name}}\n    <div>{{@listOfUsers.firstObject.name}}</div>\n    ```\n  \n    ### Using Ember helpers\n  \n    When content is passed in mustaches `{{}}`, Ember will first try to find a helper\n    or component with that name. For example, the `if` helper:\n  \n    ```app/components/person-profile.hbs\n    {{if this.name \"I have a name\" \"I have no name\"}}\n    <span data-has-name={{if this.name true}}></span>\n    ```\n  \n    The returned value is placed where the `{{}}` is called. The above style is\n    called \"inline\". A second style of helper usage is called \"block\". For example:\n  \n    ```handlebars\n    {{#if this.name}}\n      I have a name\n    {{else}}\n      I have no name\n    {{/if}}\n    ```\n  \n    The block form of helpers allows you to control how the UI is created based\n    on the values of properties.\n    A third form of helper is called \"nested\". For example here the concat\n    helper will add \" Doe\" to a displayed name if the person has no last name:\n  \n    ```handlebars\n    <span data-name={{concat this.firstName (\n      if this.lastName (concat \" \" this.lastName) \"Doe\"\n    )}}></span>\n    ```\n  \n    Ember's built-in helpers are described under the [Ember.Templates.helpers](/ember/release/classes/Ember.Templates.helpers)\n    namespace. Documentation on creating custom helpers can be found under\n    [helper](/ember/release/functions/@ember%2Fcomponent%2Fhelper/helper) (or\n    under [Helper](/ember/release/classes/Helper) if a helper requires access to\n    dependency injection).\n  \n    ### Invoking a Component\n  \n    Ember components represent state to the UI of an application. Further\n    reading on components can be found under [Component](/ember/release/classes/Component).\n  \n    @module @ember/component\n    @main @ember/component\n    @public\n   */\n\n});","define(\"@ember/-internals/meta/index\", [\"exports\", \"@ember/-internals/meta/lib/meta\"], function (_exports, _meta) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"counters\", {\n    enumerable: true,\n    get: function () {\n      return _meta.counters;\n    }\n  });\n  Object.defineProperty(_exports, \"Meta\", {\n    enumerable: true,\n    get: function () {\n      return _meta.Meta;\n    }\n  });\n  Object.defineProperty(_exports, \"meta\", {\n    enumerable: true,\n    get: function () {\n      return _meta.meta;\n    }\n  });\n  Object.defineProperty(_exports, \"peekMeta\", {\n    enumerable: true,\n    get: function () {\n      return _meta.peekMeta;\n    }\n  });\n  Object.defineProperty(_exports, \"setMeta\", {\n    enumerable: true,\n    get: function () {\n      return _meta.setMeta;\n    }\n  });\n  Object.defineProperty(_exports, \"UNDEFINED\", {\n    enumerable: true,\n    get: function () {\n      return _meta.UNDEFINED;\n    }\n  });\n});","define(\"@ember/-internals/meta/lib/meta\", [\"exports\", \"@ember/-internals/utils\", \"@ember/debug\"], function (_exports, _utils, _debug) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.setMeta = setMeta;\n  _exports.peekMeta = peekMeta;\n  _exports.counters = _exports.meta = _exports.Meta = _exports.UNDEFINED = void 0;\n  var objectPrototype = Object.prototype;\n  var counters;\n  _exports.counters = counters;\n\n  if (true\n  /* DEBUG */\n  ) {\n    _exports.counters = counters = {\n      peekCalls: 0,\n      peekPrototypeWalks: 0,\n      setCalls: 0,\n      deleteCalls: 0,\n      metaCalls: 0,\n      metaInstantiated: 0,\n      matchingListenersCalls: 0,\n      observerEventsCalls: 0,\n      addToListenersCalls: 0,\n      removeFromListenersCalls: 0,\n      removeAllListenersCalls: 0,\n      listenersInherited: 0,\n      listenersFlattened: 0,\n      parentListenersUsed: 0,\n      flattenedListenersCalls: 0,\n      reopensAfterFlatten: 0,\n      readableLazyChainsCalls: 0,\n      writableLazyChainsCalls: 0\n    };\n  }\n  /**\n  @module ember\n  */\n\n\n  var UNDEFINED = (0, _utils.symbol)('undefined');\n  _exports.UNDEFINED = UNDEFINED;\n  var currentListenerVersion = 1;\n\n  class Meta {\n    constructor(obj) {\n      this._listenersVersion = 1;\n      this._inheritedEnd = -1;\n      this._flattenedVersion = 0;\n\n      if (true\n      /* DEBUG */\n      ) {\n        counters.metaInstantiated++;\n        this._values = undefined;\n      }\n\n      this._parent = undefined;\n      this._descriptors = undefined;\n      this._mixins = undefined; // initial value for all flags right now is false\n      // see FLAGS const for detailed list of flags used\n\n      this._flags = 0\n      /* NONE */\n      ; // used only internally\n\n      this.source = obj;\n      this.proto = obj.constructor === undefined ? undefined : obj.constructor.prototype;\n      this._listeners = undefined;\n    }\n\n    get parent() {\n      var parent = this._parent;\n\n      if (parent === undefined) {\n        var proto = getPrototypeOf(this.source);\n        this._parent = parent = proto === null || proto === objectPrototype ? null : meta(proto);\n      }\n\n      return parent;\n    }\n\n    setInitializing() {\n      this._flags |= 8\n      /* INITIALIZING */\n      ;\n    }\n\n    unsetInitializing() {\n      this._flags ^= 8\n      /* INITIALIZING */\n      ;\n    }\n\n    isInitializing() {\n      return this._hasFlag(8\n      /* INITIALIZING */\n      );\n    }\n\n    isPrototypeMeta(obj) {\n      return this.proto === this.source && this.source === obj;\n    }\n\n    destroy() {\n      if (true\n      /* DEBUG */\n      ) {\n        counters.deleteCalls++;\n      }\n\n      if (this.isMetaDestroyed()) {\n        return;\n      }\n\n      this.setMetaDestroyed();\n    }\n\n    isSourceDestroying() {\n      return this._hasFlag(1\n      /* SOURCE_DESTROYING */\n      );\n    }\n\n    setSourceDestroying() {\n      this._flags |= 1\n      /* SOURCE_DESTROYING */\n      ;\n    }\n\n    isSourceDestroyed() {\n      return this._hasFlag(2\n      /* SOURCE_DESTROYED */\n      );\n    }\n\n    setSourceDestroyed() {\n      this._flags |= 2\n      /* SOURCE_DESTROYED */\n      ;\n    }\n\n    isMetaDestroyed() {\n      return this._hasFlag(4\n      /* META_DESTROYED */\n      );\n    }\n\n    setMetaDestroyed() {\n      this._flags |= 4\n      /* META_DESTROYED */\n      ;\n    }\n\n    _hasFlag(flag) {\n      return (this._flags & flag) === flag;\n    }\n\n    _getOrCreateOwnMap(key) {\n      return this[key] || (this[key] = Object.create(null));\n    }\n\n    _getOrCreateOwnSet(key) {\n      return this[key] || (this[key] = new Set());\n    }\n\n    _findInheritedMap(key, subkey) {\n      var pointer = this;\n\n      while (pointer !== null) {\n        var map = pointer[key];\n\n        if (map !== undefined) {\n          var value = map.get(subkey);\n\n          if (value !== undefined) {\n            return value;\n          }\n        }\n\n        pointer = pointer.parent;\n      }\n    }\n\n    _hasInInheritedSet(key, value) {\n      var pointer = this;\n\n      while (pointer !== null) {\n        var set = pointer[key];\n\n        if (set !== undefined && set.has(value)) {\n          return true;\n        }\n\n        pointer = pointer.parent;\n      }\n\n      return false;\n    }\n\n    writableLazyChainsFor(key) {\n      if (true\n      /* DEBUG */\n      ) {\n        counters.writableLazyChainsCalls++;\n      }\n\n      var lazyChains = this._getOrCreateOwnMap('_lazyChains');\n\n      if (!(key in lazyChains)) {\n        lazyChains[key] = Object.create(null);\n      }\n\n      return lazyChains[key];\n    }\n\n    readableLazyChainsFor(key) {\n      if (true\n      /* DEBUG */\n      ) {\n        counters.readableLazyChainsCalls++;\n      }\n\n      var lazyChains = this._lazyChains;\n\n      if (lazyChains !== undefined) {\n        return lazyChains[key];\n      }\n\n      return undefined;\n    }\n\n    addMixin(mixin) {\n      (true && !(!this.isMetaDestroyed()) && (0, _debug.assert)(this.isMetaDestroyed() ? `Cannot add mixins of \\`${(0, _utils.toString)(mixin)}\\` on \\`${(0, _utils.toString)(this.source)}\\` call addMixin after it has been destroyed.` : '', !this.isMetaDestroyed()));\n\n      var set = this._getOrCreateOwnSet('_mixins');\n\n      set.add(mixin);\n    }\n\n    hasMixin(mixin) {\n      return this._hasInInheritedSet('_mixins', mixin);\n    }\n\n    forEachMixins(fn) {\n      var pointer = this;\n      var seen;\n\n      while (pointer !== null) {\n        var set = pointer._mixins;\n\n        if (set !== undefined) {\n          seen = seen === undefined ? new Set() : seen; // TODO cleanup typing here\n\n          set.forEach(mixin => {\n            if (!seen.has(mixin)) {\n              seen.add(mixin);\n              fn(mixin);\n            }\n          });\n        }\n\n        pointer = pointer.parent;\n      }\n    }\n\n    writeDescriptors(subkey, value) {\n      (true && !(!this.isMetaDestroyed()) && (0, _debug.assert)(this.isMetaDestroyed() ? `Cannot update descriptors for \\`${subkey}\\` on \\`${(0, _utils.toString)(this.source)}\\` after it has been destroyed.` : '', !this.isMetaDestroyed()));\n      var map = this._descriptors || (this._descriptors = new Map());\n      map.set(subkey, value);\n    }\n\n    peekDescriptors(subkey) {\n      var possibleDesc = this._findInheritedMap('_descriptors', subkey);\n\n      return possibleDesc === UNDEFINED ? undefined : possibleDesc;\n    }\n\n    removeDescriptors(subkey) {\n      this.writeDescriptors(subkey, UNDEFINED);\n    }\n\n    forEachDescriptors(fn) {\n      var pointer = this;\n      var seen;\n\n      while (pointer !== null) {\n        var map = pointer._descriptors;\n\n        if (map !== undefined) {\n          seen = seen === undefined ? new Set() : seen;\n          map.forEach((value, key) => {\n            if (!seen.has(key)) {\n              seen.add(key);\n\n              if (value !== UNDEFINED) {\n                fn(key, value);\n              }\n            }\n          });\n        }\n\n        pointer = pointer.parent;\n      }\n    }\n\n    addToListeners(eventName, target, method, once, sync) {\n      if (true\n      /* DEBUG */\n      ) {\n        counters.addToListenersCalls++;\n      }\n\n      this.pushListener(eventName, target, method, once ? 1\n      /* ONCE */\n      : 0\n      /* ADD */\n      , sync);\n    }\n\n    removeFromListeners(eventName, target, method) {\n      if (true\n      /* DEBUG */\n      ) {\n        counters.removeFromListenersCalls++;\n      }\n\n      this.pushListener(eventName, target, method, 2\n      /* REMOVE */\n      );\n    }\n\n    pushListener(event, target, method, kind, sync = false) {\n      var listeners = this.writableListeners();\n      var i = indexOfListener(listeners, event, target, method); // remove if found listener was inherited\n\n      if (i !== -1 && i < this._inheritedEnd) {\n        listeners.splice(i, 1);\n        this._inheritedEnd--;\n        i = -1;\n      } // if not found, push. Note that we must always push if a listener is not\n      // found, even in the case of a function listener remove, because we may be\n      // attempting to add or remove listeners _before_ flattening has occurred.\n\n\n      if (i === -1) {\n        (true && !(!(this.isPrototypeMeta(this.source) && typeof method === 'function')) && (0, _debug.assert)('You cannot add function listeners to prototypes. Convert the listener to a string listener, or add it to the instance instead.', !(this.isPrototypeMeta(this.source) && typeof method === 'function')));\n        (true && !(!(!this.isPrototypeMeta(this.source) && typeof method === 'function' && kind === 2\n        /* REMOVE */\n        )) && (0, _debug.assert)('You attempted to remove a function listener which did not exist on the instance, which means you may have attempted to remove it before it was added.', !(!this.isPrototypeMeta(this.source) && typeof method === 'function' && kind === 2)));\n        listeners.push({\n          event,\n          target,\n          method,\n          kind,\n          sync\n        });\n      } else {\n        var listener = listeners[i]; // If the listener is our own listener and we are trying to remove it, we\n        // want to splice it out entirely so we don't hold onto a reference.\n\n        if (kind === 2\n        /* REMOVE */\n        && listener.kind !== 2\n        /* REMOVE */\n        ) {\n            listeners.splice(i, 1);\n          } else {\n          (true && !(!(listener.kind === 0\n          /* ADD */\n          && kind === 0\n          /* ADD */\n          && listener.sync !== sync)) && (0, _debug.assert)(`You attempted to add an observer for the same method on '${event.split(':')[0]}' twice to ${target} as both sync and async. Observers must be either sync or async, they cannot be both. This is likely a mistake, you should either remove the code that added the observer a second time, or update it to always be sync or async. The method was ${method}.`, !(listener.kind === 0 && kind === 0 && listener.sync !== sync))); // update own listener\n\n          listener.kind = kind;\n          listener.sync = sync;\n        }\n      }\n    }\n\n    writableListeners() {\n      // Check if we need to invalidate and reflatten. We need to do this if we\n      // have already flattened (flattened version is the current version) and\n      // we are either writing to a prototype meta OR we have never inherited, and\n      // may have cached the parent's listeners.\n      if (this._flattenedVersion === currentListenerVersion && (this.source === this.proto || this._inheritedEnd === -1)) {\n        if (true\n        /* DEBUG */\n        ) {\n          counters.reopensAfterFlatten++;\n        }\n\n        currentListenerVersion++;\n      } // Inherited end has not been set, then we have never created our own\n      // listeners, but may have cached the parent's\n\n\n      if (this._inheritedEnd === -1) {\n        this._inheritedEnd = 0;\n        this._listeners = [];\n      }\n\n      return this._listeners;\n    }\n    /**\n      Flattening is based on a global revision counter. If the revision has\n      bumped it means that somewhere in a class inheritance chain something has\n      changed, so we need to reflatten everything. This can only happen if:\n         1. A meta has been flattened (listener has been called)\n      2. The meta is a prototype meta with children who have inherited its\n         listeners\n      3. A new listener is subsequently added to the meta (e.g. via `.reopen()`)\n         This is a very rare occurrence, so while the counter is global it shouldn't\n      be updated very often in practice.\n    */\n\n\n    flattenedListeners() {\n      if (true\n      /* DEBUG */\n      ) {\n        counters.flattenedListenersCalls++;\n      }\n\n      if (this._flattenedVersion < currentListenerVersion) {\n        if (true\n        /* DEBUG */\n        ) {\n          counters.listenersFlattened++;\n        }\n\n        var parent = this.parent;\n\n        if (parent !== null) {\n          // compute\n          var parentListeners = parent.flattenedListeners();\n\n          if (parentListeners !== undefined) {\n            if (this._listeners === undefined) {\n              // If this instance doesn't have any of its own listeners (writableListeners\n              // has never been called) then we don't need to do any flattening, return\n              // the parent's listeners instead.\n              if (true\n              /* DEBUG */\n              ) {\n                counters.parentListenersUsed++;\n              }\n\n              this._listeners = parentListeners;\n            } else {\n              var listeners = this._listeners;\n\n              if (this._inheritedEnd > 0) {\n                listeners.splice(0, this._inheritedEnd);\n                this._inheritedEnd = 0;\n              }\n\n              for (var i = 0; i < parentListeners.length; i++) {\n                var listener = parentListeners[i];\n                var index = indexOfListener(listeners, listener.event, listener.target, listener.method);\n\n                if (index === -1) {\n                  if (true\n                  /* DEBUG */\n                  ) {\n                    counters.listenersInherited++;\n                  }\n\n                  listeners.unshift(listener);\n                  this._inheritedEnd++;\n                }\n              }\n            }\n          }\n        }\n\n        this._flattenedVersion = currentListenerVersion;\n      }\n\n      return this._listeners;\n    }\n\n    matchingListeners(eventName) {\n      var listeners = this.flattenedListeners();\n      var result;\n\n      if (true\n      /* DEBUG */\n      ) {\n        counters.matchingListenersCalls++;\n      }\n\n      if (listeners !== undefined) {\n        for (var index = 0; index < listeners.length; index++) {\n          var listener = listeners[index]; // REMOVE listeners are placeholders that tell us not to\n          // inherit, so they never match. Only ADD and ONCE can match.\n\n          if (listener.event === eventName && (listener.kind === 0\n          /* ADD */\n          || listener.kind === 1\n          /* ONCE */\n          )) {\n            if (result === undefined) {\n              // we create this array only after we've found a listener that\n              // matches to avoid allocations when no matches are found.\n              result = [];\n            }\n\n            result.push(listener.target, listener.method, listener.kind === 1\n            /* ONCE */\n            );\n          }\n        }\n      }\n\n      return result;\n    }\n\n    observerEvents() {\n      var listeners = this.flattenedListeners();\n      var result;\n\n      if (true\n      /* DEBUG */\n      ) {\n        counters.observerEventsCalls++;\n      }\n\n      if (listeners !== undefined) {\n        for (var index = 0; index < listeners.length; index++) {\n          var listener = listeners[index]; // REMOVE listeners are placeholders that tell us not to\n          // inherit, so they never match. Only ADD and ONCE can match.\n\n          if ((listener.kind === 0\n          /* ADD */\n          || listener.kind === 1\n          /* ONCE */\n          ) && listener.event.indexOf(':change') !== -1) {\n            if (result === undefined) {\n              // we create this array only after we've found a listener that\n              // matches to avoid allocations when no matches are found.\n              result = [];\n            }\n\n            result.push(listener);\n          }\n        }\n      }\n\n      return result;\n    }\n\n  }\n\n  _exports.Meta = Meta;\n  var getPrototypeOf = Object.getPrototypeOf;\n  var metaStore = new WeakMap();\n\n  function setMeta(obj, meta) {\n    (true && !(obj !== null) && (0, _debug.assert)('Cannot call `setMeta` on null', obj !== null));\n    (true && !(obj !== undefined) && (0, _debug.assert)('Cannot call `setMeta` on undefined', obj !== undefined));\n    (true && !(typeof obj === 'object' || typeof obj === 'function') && (0, _debug.assert)(`Cannot call \\`setMeta\\` on ${typeof obj}`, typeof obj === 'object' || typeof obj === 'function'));\n\n    if (true\n    /* DEBUG */\n    ) {\n      counters.setCalls++;\n    }\n\n    metaStore.set(obj, meta);\n  }\n\n  function peekMeta(obj) {\n    (true && !(obj !== null) && (0, _debug.assert)('Cannot call `peekMeta` on null', obj !== null));\n    (true && !(obj !== undefined) && (0, _debug.assert)('Cannot call `peekMeta` on undefined', obj !== undefined));\n    (true && !(typeof obj === 'object' || typeof obj === 'function') && (0, _debug.assert)(`Cannot call \\`peekMeta\\` on ${typeof obj}`, typeof obj === 'object' || typeof obj === 'function'));\n\n    if (true\n    /* DEBUG */\n    ) {\n      counters.peekCalls++;\n    }\n\n    var meta = metaStore.get(obj);\n\n    if (meta !== undefined) {\n      return meta;\n    }\n\n    var pointer = getPrototypeOf(obj);\n\n    while (pointer !== null) {\n      if (true\n      /* DEBUG */\n      ) {\n        counters.peekPrototypeWalks++;\n      }\n\n      meta = metaStore.get(pointer);\n\n      if (meta !== undefined) {\n        if (meta.proto !== pointer) {\n          // The meta was a prototype meta which was not marked as initializing.\n          // This can happen when a prototype chain was created manually via\n          // Object.create() and the source object does not have a constructor.\n          meta.proto = pointer;\n        }\n\n        return meta;\n      }\n\n      pointer = getPrototypeOf(pointer);\n    }\n\n    return null;\n  }\n  /**\n    Retrieves the meta hash for an object. If `writable` is true ensures the\n    hash is writable for this object as well.\n  \n    The meta object contains information about computed property descriptors as\n    well as any watched properties and other information. You generally will\n    not access this information directly but instead work with higher level\n    methods that manipulate this hash indirectly.\n  \n    @method meta\n    @for Ember\n    @private\n  \n    @param {Object} obj The object to retrieve meta for\n    @param {Boolean} [writable=true] Pass `false` if you do not intend to modify\n      the meta hash, allowing the method to avoid making an unnecessary copy.\n    @return {Object} the meta hash for an object\n  */\n\n\n  var meta = function meta(obj) {\n    (true && !(obj !== null) && (0, _debug.assert)('Cannot call `meta` on null', obj !== null));\n    (true && !(obj !== undefined) && (0, _debug.assert)('Cannot call `meta` on undefined', obj !== undefined));\n    (true && !(typeof obj === 'object' || typeof obj === 'function') && (0, _debug.assert)(`Cannot call \\`meta\\` on ${typeof obj}`, typeof obj === 'object' || typeof obj === 'function'));\n\n    if (true\n    /* DEBUG */\n    ) {\n      counters.metaCalls++;\n    }\n\n    var maybeMeta = peekMeta(obj); // remove this code, in-favor of explicit parent\n\n    if (maybeMeta !== null && maybeMeta.source === obj) {\n      return maybeMeta;\n    }\n\n    var newMeta = new Meta(obj);\n    setMeta(obj, newMeta);\n    return newMeta;\n  };\n\n  _exports.meta = meta;\n\n  if (true\n  /* DEBUG */\n  ) {\n    meta._counters = counters;\n  }\n\n  function indexOfListener(listeners, event, target, method) {\n    for (var i = listeners.length - 1; i >= 0; i--) {\n      var listener = listeners[i];\n\n      if (listener.event === event && listener.target === target && listener.method === method) {\n        return i;\n      }\n    }\n\n    return -1;\n  }\n});","define(\"@ember/-internals/metal/index\", [\"exports\", \"@ember/-internals/meta\", \"@ember/-internals/utils\", \"@ember/debug\", \"@ember/-internals/environment\", \"@ember/runloop\", \"@glimmer/validator\", \"@ember/polyfills\", \"@ember/error\", \"ember/version\", \"@ember/-internals/meta/lib/meta\", \"@ember/deprecated-features\", \"@ember/-internals/owner\"], function (_exports, _meta2, _utils, _debug, _environment, _runloop, _validator, _polyfills, _error, _version, _meta3, _deprecatedFeatures, _owner) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.computed = computed;\n  _exports.isComputed = isComputed;\n  _exports.getCacheFor = getCacheFor;\n  _exports.getCachedValueFor = getCachedValueFor;\n  _exports.peekCacheFor = peekCacheFor;\n  _exports.alias = alias;\n  _exports.deprecateProperty = deprecateProperty;\n  _exports._getPath = _getPath;\n  _exports.get = get;\n  _exports.getWithDefault = getWithDefault;\n  _exports.set = set;\n  _exports.trySet = trySet;\n  _exports.objectAt = objectAt;\n  _exports.replace = replace;\n  _exports.replaceInNativeArray = replaceInNativeArray;\n  _exports.addArrayObserver = addArrayObserver;\n  _exports.removeArrayObserver = removeArrayObserver;\n  _exports.arrayContentWillChange = arrayContentWillChange;\n  _exports.arrayContentDidChange = arrayContentDidChange;\n  _exports.eachProxyArrayWillChange = eachProxyArrayWillChange;\n  _exports.eachProxyArrayDidChange = eachProxyArrayDidChange;\n  _exports.addListener = addListener;\n  _exports.hasListeners = hasListeners;\n  _exports.on = on;\n  _exports.removeListener = removeListener;\n  _exports.sendEvent = sendEvent;\n  _exports.isNone = isNone;\n  _exports.isEmpty = isEmpty;\n  _exports.isBlank = isBlank;\n  _exports.isPresent = isPresent;\n  _exports.beginPropertyChanges = beginPropertyChanges;\n  _exports.changeProperties = changeProperties;\n  _exports.endPropertyChanges = endPropertyChanges;\n  _exports.notifyPropertyChange = notifyPropertyChange;\n  _exports.defineProperty = defineProperty;\n  _exports.isElementDescriptor = isElementDescriptor;\n  _exports.nativeDescDecorator = nativeDescDecorator;\n  _exports.descriptorForDecorator = descriptorForDecorator;\n  _exports.descriptorForProperty = descriptorForProperty;\n  _exports.isClassicDecorator = isClassicDecorator;\n  _exports.setClassicDecorator = setClassicDecorator;\n  _exports.getChainTagsForKey = getChainTagsForKey;\n  _exports.getProperties = getProperties;\n  _exports.setProperties = setProperties;\n  _exports.expandProperties = expandProperties;\n  _exports.destroy = destroy;\n  _exports.addObserver = addObserver;\n  _exports.activateObserver = activateObserver;\n  _exports.removeObserver = removeObserver;\n  _exports.flushAsyncObservers = flushAsyncObservers;\n  _exports.mixin = mixin;\n  _exports.observer = observer;\n  _exports.applyMixin = applyMixin;\n  _exports.inject = inject;\n  _exports.tagForProperty = tagForProperty;\n  _exports.tagForObject = tagForObject;\n  _exports.markObjectAsDirty = markObjectAsDirty;\n  _exports.tracked = tracked;\n  _exports.addNamespace = addNamespace;\n  _exports.classToString = classToString;\n  _exports.findNamespace = findNamespace;\n  _exports.findNamespaces = findNamespaces;\n  _exports.processNamespace = processNamespace;\n  _exports.processAllNamespaces = processAllNamespaces;\n  _exports.removeNamespace = removeNamespace;\n  _exports.isNamespaceSearchDisabled = isSearchDisabled;\n  _exports.setNamespaceSearchDisabled = setSearchDisabled;\n  _exports.NAMESPACES_BY_ID = _exports.NAMESPACES = _exports.CUSTOM_TAG_FOR = _exports.DEBUG_INJECTION_FUNCTIONS = _exports.aliasMethod = _exports.Mixin = _exports.SYNC_OBSERVERS = _exports.ASYNC_OBSERVERS = _exports.Libraries = _exports.libraries = _exports.PROPERTY_DID_CHANGE = _exports.PROXY_CONTENT = _exports.ComputedProperty = _exports._globalsComputed = void 0;\n  var COMPUTED_PROPERTY_CACHED_VALUES = new WeakMap();\n  var COMPUTED_PROPERTY_LAST_REVISION = new WeakMap();\n\n  function getCacheFor(obj) {\n    var cache = COMPUTED_PROPERTY_CACHED_VALUES.get(obj);\n\n    if (cache === undefined) {\n      cache = new Map();\n      COMPUTED_PROPERTY_CACHED_VALUES.set(obj, cache);\n    }\n\n    return cache;\n  }\n  /**\n    Returns the cached value for a property, if one exists.\n    This can be useful for peeking at the value of a computed\n    property that is generated lazily, without accidentally causing\n    it to be created.\n  \n    @method cacheFor\n    @static\n    @for @ember/object/internals\n    @param {Object} obj the object whose property you want to check\n    @param {String} key the name of the property whose cached value you want\n      to return\n    @return {Object} the cached value\n    @public\n  */\n\n\n  function getCachedValueFor(obj, key) {\n    var cache = COMPUTED_PROPERTY_CACHED_VALUES.get(obj);\n\n    if (cache !== undefined) {\n      return cache.get(key);\n    }\n  }\n\n  function setLastRevisionFor(obj, key, revision) {\n    var cache = COMPUTED_PROPERTY_LAST_REVISION.get(obj);\n\n    if (cache === undefined) {\n      cache = new Map();\n      COMPUTED_PROPERTY_LAST_REVISION.set(obj, cache);\n    }\n\n    cache.set(key, revision);\n  }\n\n  function getLastRevisionFor(obj, key) {\n    var cache = COMPUTED_PROPERTY_LAST_REVISION.get(obj);\n\n    if (cache === undefined) {\n      return 0;\n    } else {\n      var revision = cache.get(key);\n      return revision === undefined ? 0 : revision;\n    }\n  }\n\n  function peekCacheFor(obj) {\n    return COMPUTED_PROPERTY_CACHED_VALUES.get(obj);\n  }\n  /**\n  @module @ember/object\n  */\n\n  /*\n    The event system uses a series of nested hashes to store listeners on an\n    object. When a listener is registered, or when an event arrives, these\n    hashes are consulted to determine which target and action pair to invoke.\n  \n    The hashes are stored in the object's meta hash, and look like this:\n  \n        // Object's meta hash\n        {\n          listeners: {       // variable name: `listenerSet`\n            \"foo:change\": [ // variable name: `actions`\n              target, method, once\n            ]\n          }\n        }\n  \n  */\n\n  /**\n    Add an event listener\n  \n    @method addListener\n    @static\n    @for @ember/object/events\n    @param obj\n    @param {String} eventName\n    @param {Object|Function} target A target object or a function\n    @param {Function|String} method A function or the name of a function to be called on `target`\n    @param {Boolean} once A flag whether a function should only be called once\n    @public\n  */\n\n\n  function addListener(obj, eventName, target, method, once, sync = true) {\n    (true && !(Boolean(obj) && Boolean(eventName)) && (0, _debug.assert)('You must pass at least an object and event name to addListener', Boolean(obj) && Boolean(eventName)));\n\n    if (!method && 'function' === typeof target) {\n      method = target;\n      target = null;\n    }\n\n    (0, _meta2.meta)(obj).addToListeners(eventName, target, method, once === true, sync);\n  }\n  /**\n    Remove an event listener\n  \n    Arguments should match those passed to `addListener`.\n  \n    @method removeListener\n    @static\n    @for @ember/object/events\n    @param obj\n    @param {String} eventName\n    @param {Object|Function} target A target object or a function\n    @param {Function|String} method A function or the name of a function to be called on `target`\n    @public\n  */\n\n\n  function removeListener(obj, eventName, targetOrFunction, functionOrName) {\n    (true && !(Boolean(obj) && Boolean(eventName) && (typeof targetOrFunction === 'function' || typeof targetOrFunction === 'object' && Boolean(functionOrName))) && (0, _debug.assert)('You must pass at least an object, event name, and method or target and method/method name to removeListener', Boolean(obj) && Boolean(eventName) && (typeof targetOrFunction === 'function' || typeof targetOrFunction === 'object' && Boolean(functionOrName))));\n    var target, method;\n\n    if (typeof targetOrFunction === 'object') {\n      target = targetOrFunction;\n      method = functionOrName;\n    } else {\n      target = null;\n      method = targetOrFunction;\n    }\n\n    var m = (0, _meta2.meta)(obj);\n    m.removeFromListeners(eventName, target, method);\n  }\n  /**\n    Send an event. The execution of suspended listeners\n    is skipped, and once listeners are removed. A listener without\n    a target is executed on the passed object. If an array of actions\n    is not passed, the actions stored on the passed object are invoked.\n  \n    @method sendEvent\n    @static\n    @for @ember/object/events\n    @param obj\n    @param {String} eventName\n    @param {Array} params Optional parameters for each listener.\n    @return {Boolean} if the event was delivered to one or more actions\n    @public\n  */\n\n\n  function sendEvent(obj, eventName, params, actions, _meta) {\n    if (actions === undefined) {\n      var meta$$1 = _meta === undefined ? (0, _meta2.peekMeta)(obj) : _meta;\n      actions = meta$$1 !== null ? meta$$1.matchingListeners(eventName) : undefined;\n    }\n\n    if (actions === undefined || actions.length === 0) {\n      return false;\n    }\n\n    for (var i = actions.length - 3; i >= 0; i -= 3) {\n      // looping in reverse for once listeners\n      var target = actions[i];\n      var method = actions[i + 1];\n      var once = actions[i + 2];\n\n      if (!method) {\n        continue;\n      }\n\n      if (once) {\n        removeListener(obj, eventName, target, method);\n      }\n\n      if (!target) {\n        target = obj;\n      }\n\n      if ('string' === typeof method) {\n        method = target[method];\n      }\n\n      method.apply(target, params);\n    }\n\n    return true;\n  }\n  /**\n    @private\n    @method hasListeners\n    @static\n    @for @ember/object/events\n    @param obj\n    @param {String} eventName\n    @return {Boolean} if `obj` has listeners for event `eventName`\n  */\n\n\n  function hasListeners(obj, eventName) {\n    var meta$$1 = (0, _meta2.peekMeta)(obj);\n\n    if (meta$$1 === null) {\n      return false;\n    }\n\n    var matched = meta$$1.matchingListeners(eventName);\n    return matched !== undefined && matched.length > 0;\n  }\n  /**\n    Define a property as a function that should be executed when\n    a specified event or events are triggered.\n  \n    ``` javascript\n    import EmberObject from '@ember/object';\n    import { on } from '@ember/object/evented';\n    import { sendEvent } from '@ember/object/events';\n  \n    let Job = EmberObject.extend({\n      logCompleted: on('completed', function() {\n        console.log('Job completed!');\n      })\n    });\n  \n    let job = Job.create();\n  \n    sendEvent(job, 'completed'); // Logs 'Job completed!'\n   ```\n  \n    @method on\n    @static\n    @for @ember/object/evented\n    @param {String} eventNames*\n    @param {Function} func\n    @return {Function} the listener function, passed as last argument to on(...)\n    @public\n  */\n\n\n  function on(...args) {\n    var func = args.pop();\n    var events = args;\n    (true && !(typeof func === 'function') && (0, _debug.assert)('on expects function as last argument', typeof func === 'function'));\n    (true && !(events.length > 0 && events.every(p => typeof p === 'string' && p.length > 0)) && (0, _debug.assert)('on called without valid event names', events.length > 0 && events.every(p => typeof p === 'string' && p.length > 0)));\n    (0, _utils.setListeners)(func, events);\n    return func;\n  }\n\n  var AFTER_OBSERVERS = ':change';\n\n  function changeEvent(keyName) {\n    return keyName + AFTER_OBSERVERS;\n  }\n\n  var SYNC_DEFAULT = !_environment.ENV._DEFAULT_ASYNC_OBSERVERS;\n  var SYNC_OBSERVERS = new Map();\n  _exports.SYNC_OBSERVERS = SYNC_OBSERVERS;\n  var ASYNC_OBSERVERS = new Map();\n  /**\n  @module @ember/object\n  */\n\n  /**\n    @method addObserver\n    @static\n    @for @ember/object/observers\n    @param obj\n    @param {String} path\n    @param {Object|Function} target\n    @param {Function|String} [method]\n    @public\n  */\n\n  _exports.ASYNC_OBSERVERS = ASYNC_OBSERVERS;\n\n  function addObserver(obj, path, target, method, sync = SYNC_DEFAULT) {\n    var eventName = changeEvent(path);\n    addListener(obj, eventName, target, method, false, sync);\n    var meta$$1 = (0, _meta2.peekMeta)(obj);\n\n    if (meta$$1 === null || !(meta$$1.isPrototypeMeta(obj) || meta$$1.isInitializing())) {\n      activateObserver(obj, eventName, sync);\n    }\n  }\n  /**\n    @method removeObserver\n    @static\n    @for @ember/object/observers\n    @param obj\n    @param {String} path\n    @param {Object|Function} target\n    @param {Function|String} [method]\n    @public\n  */\n\n\n  function removeObserver(obj, path, target, method, sync = SYNC_DEFAULT) {\n    var eventName = changeEvent(path);\n    var meta$$1 = (0, _meta2.peekMeta)(obj);\n\n    if (meta$$1 === null || !(meta$$1.isPrototypeMeta(obj) || meta$$1.isInitializing())) {\n      deactivateObserver(obj, eventName, sync);\n    }\n\n    removeListener(obj, eventName, target, method);\n  }\n\n  function getOrCreateActiveObserversFor(target, sync) {\n    var observerMap = sync === true ? SYNC_OBSERVERS : ASYNC_OBSERVERS;\n\n    if (!observerMap.has(target)) {\n      observerMap.set(target, new Map());\n    }\n\n    return observerMap.get(target);\n  }\n\n  function activateObserver(target, eventName, sync = false) {\n    var activeObservers = getOrCreateActiveObserversFor(target, sync);\n\n    if (activeObservers.has(eventName)) {\n      activeObservers.get(eventName).count++;\n    } else {\n      var [path] = eventName.split(':');\n      var tag = (0, _validator.combine)(getChainTagsForKey(target, path));\n      activeObservers.set(eventName, {\n        count: 1,\n        path,\n        tag,\n        lastRevision: (0, _validator.valueForTag)(tag),\n        suspended: false\n      });\n    }\n  }\n\n  var DEACTIVATE_SUSPENDED = false;\n  var SCHEDULED_DEACTIVATE = [];\n\n  function deactivateObserver(target, eventName, sync = false) {\n    if (DEACTIVATE_SUSPENDED === true) {\n      SCHEDULED_DEACTIVATE.push([target, eventName, sync]);\n      return;\n    }\n\n    var observerMap = sync === true ? SYNC_OBSERVERS : ASYNC_OBSERVERS;\n    var activeObservers = observerMap.get(target);\n\n    if (activeObservers !== undefined) {\n      var _observer = activeObservers.get(eventName);\n\n      _observer.count--;\n\n      if (_observer.count === 0) {\n        activeObservers.delete(eventName);\n\n        if (activeObservers.size === 0) {\n          observerMap.delete(target);\n        }\n      }\n    }\n  }\n\n  function suspendedObserverDeactivation() {\n    DEACTIVATE_SUSPENDED = true;\n  }\n\n  function resumeObserverDeactivation() {\n    DEACTIVATE_SUSPENDED = false;\n\n    for (var [target, eventName, sync] of SCHEDULED_DEACTIVATE) {\n      deactivateObserver(target, eventName, sync);\n    }\n\n    SCHEDULED_DEACTIVATE = [];\n  }\n  /**\n   * Primarily used for cases where we are redefining a class, e.g. mixins/reopen\n   * being applied later. Revalidates all the observers, resetting their tags.\n   *\n   * @private\n   * @param target\n   */\n\n\n  function revalidateObservers(target) {\n    if (ASYNC_OBSERVERS.has(target)) {\n      ASYNC_OBSERVERS.get(target).forEach(observer => {\n        observer.tag = (0, _validator.combine)(getChainTagsForKey(target, observer.path));\n        observer.lastRevision = (0, _validator.valueForTag)(observer.tag);\n      });\n    }\n\n    if (SYNC_OBSERVERS.has(target)) {\n      SYNC_OBSERVERS.get(target).forEach(observer => {\n        observer.tag = (0, _validator.combine)(getChainTagsForKey(target, observer.path));\n        observer.lastRevision = (0, _validator.valueForTag)(observer.tag);\n      });\n    }\n  }\n\n  var lastKnownRevision = 0;\n\n  function flushAsyncObservers(shouldSchedule = true) {\n    var currentRevision = (0, _validator.valueForTag)(_validator.CURRENT_TAG);\n\n    if (lastKnownRevision === currentRevision) {\n      return;\n    }\n\n    lastKnownRevision = currentRevision;\n    ASYNC_OBSERVERS.forEach((activeObservers, target) => {\n      var meta$$1 = (0, _meta2.peekMeta)(target); // if observer target is destroyed remove observers\n\n      if (meta$$1 && (meta$$1.isSourceDestroying() || meta$$1.isMetaDestroyed())) {\n        ASYNC_OBSERVERS.delete(target);\n        return;\n      }\n\n      activeObservers.forEach((observer, eventName) => {\n        if (!(0, _validator.validateTag)(observer.tag, observer.lastRevision)) {\n          var sendObserver = () => {\n            try {\n              sendEvent(target, eventName, [target, observer.path], undefined, meta$$1);\n            } finally {\n              observer.tag = (0, _validator.combine)(getChainTagsForKey(target, observer.path));\n              observer.lastRevision = (0, _validator.valueForTag)(observer.tag);\n            }\n          };\n\n          if (shouldSchedule) {\n            (0, _runloop.schedule)('actions', sendObserver);\n          } else {\n            sendObserver();\n          }\n        }\n      });\n    });\n  }\n\n  function flushSyncObservers() {\n    // When flushing synchronous observers, we know that something has changed (we\n    // only do this during a notifyPropertyChange), so there's no reason to check\n    // a global revision.\n    SYNC_OBSERVERS.forEach((activeObservers, target) => {\n      var meta$$1 = (0, _meta2.peekMeta)(target);\n\n      if (meta$$1 && (meta$$1.isSourceDestroying() || meta$$1.isMetaDestroyed())) {\n        SYNC_OBSERVERS.delete(target);\n        return;\n      }\n\n      activeObservers.forEach((observer, eventName) => {\n        if (!observer.suspended && !(0, _validator.validateTag)(observer.tag, observer.lastRevision)) {\n          try {\n            observer.suspended = true;\n            sendEvent(target, eventName, [target, observer.path], undefined, meta$$1);\n          } finally {\n            observer.tag = (0, _validator.combine)(getChainTagsForKey(target, observer.path));\n            observer.lastRevision = (0, _validator.valueForTag)(observer.tag);\n            observer.suspended = false;\n          }\n        }\n      });\n    });\n  }\n\n  function setObserverSuspended(target, property, suspended) {\n    var activeObservers = SYNC_OBSERVERS.get(target);\n\n    if (!activeObservers) {\n      return;\n    }\n\n    var observer = activeObservers.get(changeEvent(property));\n\n    if (observer) {\n      observer.suspended = suspended;\n    }\n  }\n\n  function destroyObservers(target) {\n    if (SYNC_OBSERVERS.size > 0) SYNC_OBSERVERS.delete(target);\n    if (ASYNC_OBSERVERS.size > 0) ASYNC_OBSERVERS.delete(target);\n  } // Setup tracking environment\n\n\n  (0, _validator.setPropertyDidChange)(() => _runloop.backburner.ensureInstance());\n\n  if (true\n  /* DEBUG */\n  ) {\n    (0, _validator.setAutotrackingTransactionEnv)({\n      assert(message) {\n        (true && !(false) && (0, _debug.assert)(message, false));\n      },\n\n      deprecate(message) {\n        (true && !(false) && (0, _debug.deprecate)(message, false, {\n          id: 'autotracking.mutation-after-consumption',\n          until: '4.0.0'\n        }));\n      },\n\n      debugMessage(obj, keyName) {\n        var dirtyString = keyName ? `\\`${keyName}\\` on \\`${(0, _utils.getDebugName)(obj)}\\`` : `\\`${(0, _utils.getDebugName)(obj)}\\``;\n        return `You attempted to update ${dirtyString}, but it had already been used previously in the same computation.  Attempting to update a value after using it in a computation can cause logical errors, infinite revalidation bugs, and performance issues, and is not supported.`;\n      }\n\n    });\n  } /////////\n\n\n  var CUSTOM_TAG_FOR = (0, _utils.symbol)('CUSTOM_TAG_FOR'); // This is exported for `@tracked`, but should otherwise be avoided. Use `tagForObject`.\n\n  _exports.CUSTOM_TAG_FOR = CUSTOM_TAG_FOR;\n  var SELF_TAG = (0, _utils.symbol)('SELF_TAG');\n\n  function tagForProperty(obj, propertyKey) {\n    if (!(0, _utils.isObject)(obj)) {\n      return _validator.CONSTANT_TAG;\n    }\n\n    if (typeof obj[CUSTOM_TAG_FOR] === 'function') {\n      return obj[CUSTOM_TAG_FOR](propertyKey);\n    }\n\n    var tag = (0, _validator.tagFor)(obj, propertyKey);\n\n    if (true\n    /* DEBUG */\n    ) {\n      (0, _utils.setupMandatorySetter)(tag, obj, propertyKey); // TODO: Replace this with something more first class for tracking tags in DEBUG\n\n      tag._propertyKey = propertyKey;\n    }\n\n    return tag;\n  }\n\n  function tagForObject(obj) {\n    if ((0, _utils.isObject)(obj)) {\n      if (true\n      /* DEBUG */\n      ) {\n        var meta$$1 = (0, _meta2.meta)(obj);\n        (true && !(!meta$$1.isMetaDestroyed()) && (0, _debug.assert)(meta$$1.isMetaDestroyed() ? `Cannot create a new tag for \\`${(0, _utils.toString)(meta$$1.source)}\\` after it has been destroyed.` : '', !meta$$1.isMetaDestroyed()));\n      }\n\n      return (0, _validator.tagFor)(obj, SELF_TAG);\n    }\n\n    return _validator.CONSTANT_TAG;\n  }\n\n  function markObjectAsDirty(obj, propertyKey) {\n    (0, _validator.dirtyTagFor)(obj, propertyKey);\n    (0, _validator.dirtyTagFor)(obj, SELF_TAG);\n  }\n  /**\n   @module ember\n   @private\n   */\n\n\n  var PROPERTY_DID_CHANGE = (0, _utils.symbol)('PROPERTY_DID_CHANGE');\n  _exports.PROPERTY_DID_CHANGE = PROPERTY_DID_CHANGE;\n  var deferred = 0;\n  /**\n    This function is called just after an object property has changed.\n    It will notify any observers and clear caches among other things.\n  \n    Normally you will not need to call this method directly but if for some\n    reason you can't directly watch a property you can invoke this method\n    manually.\n  \n    @method notifyPropertyChange\n    @for @ember/object\n    @param {Object} obj The object with the property that will change\n    @param {String} keyName The property key (or path) that will change.\n    @param {Meta} [_meta] The objects meta.\n    @param {unknown} [value] The new value to set for the property\n    @return {void}\n    @since 3.1.0\n    @public\n  */\n\n  function notifyPropertyChange(obj, keyName, _meta, value) {\n    var meta$$1 = _meta === undefined ? (0, _meta2.peekMeta)(obj) : _meta;\n\n    if (meta$$1 !== null && (meta$$1.isInitializing() || meta$$1.isPrototypeMeta(obj))) {\n      return;\n    }\n\n    markObjectAsDirty(obj, keyName);\n\n    if (deferred <= 0) {\n      flushSyncObservers();\n    }\n\n    if (PROPERTY_DID_CHANGE in obj) {\n      // we need to check the arguments length here; there's a check in `PROPERTY_DID_CHANGE`\n      // that checks its arguments length, so we have to explicitly not call this with `value`\n      // if it is not passed to `notifyPropertyChange`\n      if (arguments.length === 4) {\n        obj[PROPERTY_DID_CHANGE](keyName, value);\n      } else {\n        obj[PROPERTY_DID_CHANGE](keyName);\n      }\n    }\n  }\n  /**\n    @method beginPropertyChanges\n    @chainable\n    @private\n  */\n\n\n  function beginPropertyChanges() {\n    deferred++;\n    suspendedObserverDeactivation();\n  }\n  /**\n    @method endPropertyChanges\n    @private\n  */\n\n\n  function endPropertyChanges() {\n    deferred--;\n\n    if (deferred <= 0) {\n      flushSyncObservers();\n      resumeObserverDeactivation();\n    }\n  }\n  /**\n    Make a series of property changes together in an\n    exception-safe way.\n  \n    ```javascript\n    Ember.changeProperties(function() {\n      obj1.set('foo', mayBlowUpWhenSet);\n      obj2.set('bar', baz);\n    });\n    ```\n  \n    @method changeProperties\n    @param {Function} callback\n    @private\n  */\n\n\n  function changeProperties(callback) {\n    beginPropertyChanges();\n\n    try {\n      callback();\n    } finally {\n      endPropertyChanges();\n    }\n  }\n\n  function arrayContentWillChange(array, startIdx, removeAmt, addAmt) {\n    // if no args are passed assume everything changes\n    if (startIdx === undefined) {\n      startIdx = 0;\n      removeAmt = addAmt = -1;\n    } else {\n      if (removeAmt === undefined) {\n        removeAmt = -1;\n      }\n\n      if (addAmt === undefined) {\n        addAmt = -1;\n      }\n    }\n\n    sendEvent(array, '@array:before', [array, startIdx, removeAmt, addAmt]);\n    return array;\n  }\n\n  function arrayContentDidChange(array, startIdx, removeAmt, addAmt, notify = true) {\n    // if no args are passed assume everything changes\n    if (startIdx === undefined) {\n      startIdx = 0;\n      removeAmt = addAmt = -1;\n    } else {\n      if (removeAmt === undefined) {\n        removeAmt = -1;\n      }\n\n      if (addAmt === undefined) {\n        addAmt = -1;\n      }\n    }\n\n    var meta$$1 = (0, _meta2.peekMeta)(array);\n\n    if (notify) {\n      if (addAmt < 0 || removeAmt < 0 || addAmt - removeAmt !== 0) {\n        notifyPropertyChange(array, 'length', meta$$1);\n      }\n\n      notifyPropertyChange(array, '[]', meta$$1);\n    }\n\n    sendEvent(array, '@array:change', [array, startIdx, removeAmt, addAmt]);\n    var cache = peekCacheFor(array);\n\n    if (cache !== undefined) {\n      var length = array.length;\n      var addedAmount = addAmt === -1 ? 0 : addAmt;\n      var removedAmount = removeAmt === -1 ? 0 : removeAmt;\n      var delta = addedAmount - removedAmount;\n      var previousLength = length - delta;\n      var normalStartIdx = startIdx < 0 ? previousLength + startIdx : startIdx;\n\n      if (cache.has('firstObject') && normalStartIdx === 0) {\n        notifyPropertyChange(array, 'firstObject', meta$$1);\n      }\n\n      if (cache.has('lastObject')) {\n        var previousLastIndex = previousLength - 1;\n        var lastAffectedIndex = normalStartIdx + removedAmount;\n\n        if (previousLastIndex < lastAffectedIndex) {\n          notifyPropertyChange(array, 'lastObject', meta$$1);\n        }\n      }\n    }\n\n    return array;\n  }\n\n  var EMPTY_ARRAY = Object.freeze([]);\n\n  function objectAt(array, index) {\n    if (Array.isArray(array)) {\n      return array[index];\n    } else {\n      return array.objectAt(index);\n    }\n  }\n\n  function replace(array, start, deleteCount, items = EMPTY_ARRAY) {\n    if (Array.isArray(array)) {\n      replaceInNativeArray(array, start, deleteCount, items);\n    } else {\n      array.replace(start, deleteCount, items);\n    }\n  }\n\n  var CHUNK_SIZE = 60000; // To avoid overflowing the stack, we splice up to CHUNK_SIZE items at a time.\n  // See https://code.google.com/p/chromium/issues/detail?id=56588 for more details.\n\n  function replaceInNativeArray(array, start, deleteCount, items) {\n    arrayContentWillChange(array, start, deleteCount, items.length);\n\n    if (items.length <= CHUNK_SIZE) {\n      array.splice(start, deleteCount, ...items);\n    } else {\n      array.splice(start, deleteCount);\n\n      for (var i = 0; i < items.length; i += CHUNK_SIZE) {\n        var chunk = items.slice(i, i + CHUNK_SIZE);\n        array.splice(start + i, 0, ...chunk);\n      }\n    }\n\n    arrayContentDidChange(array, start, deleteCount, items.length);\n  }\n\n  function arrayObserversHelper(obj, target, opts, operation, notify) {\n    var willChange = opts && opts.willChange || 'arrayWillChange';\n    var didChange = opts && opts.didChange || 'arrayDidChange';\n    var hasObservers = obj.hasArrayObservers;\n    operation(obj, '@array:before', target, willChange);\n    operation(obj, '@array:change', target, didChange);\n\n    if (hasObservers === notify) {\n      notifyPropertyChange(obj, 'hasArrayObservers');\n    }\n\n    return obj;\n  }\n\n  function addArrayObserver(array, target, opts) {\n    return arrayObserversHelper(array, target, opts, addListener, false);\n  }\n\n  function removeArrayObserver(array, target, opts) {\n    return arrayObserversHelper(array, target, opts, removeListener, true);\n  }\n\n  var DECORATOR_DESCRIPTOR_MAP = new WeakMap();\n  /**\n    Returns the CP descriptor associated with `obj` and `keyName`, if any.\n  \n    @method descriptorForProperty\n    @param {Object} obj the object to check\n    @param {String} keyName the key to check\n    @return {Descriptor}\n    @private\n  */\n\n  function descriptorForProperty(obj, keyName, _meta) {\n    (true && !(obj !== null) && (0, _debug.assert)('Cannot call `descriptorForProperty` on null', obj !== null));\n    (true && !(obj !== undefined) && (0, _debug.assert)('Cannot call `descriptorForProperty` on undefined', obj !== undefined));\n    (true && !(typeof obj === 'object' || typeof obj === 'function') && (0, _debug.assert)(`Cannot call \\`descriptorForProperty\\` on ${typeof obj}`, typeof obj === 'object' || typeof obj === 'function'));\n    var meta$$1 = _meta === undefined ? (0, _meta2.peekMeta)(obj) : _meta;\n\n    if (meta$$1 !== null) {\n      return meta$$1.peekDescriptors(keyName);\n    }\n  }\n\n  function descriptorForDecorator(dec) {\n    return DECORATOR_DESCRIPTOR_MAP.get(dec);\n  }\n  /**\n    Check whether a value is a decorator\n  \n    @method isClassicDecorator\n    @param {any} possibleDesc the value to check\n    @return {boolean}\n    @private\n  */\n\n\n  function isClassicDecorator(dec) {\n    return dec !== null && dec !== undefined && DECORATOR_DESCRIPTOR_MAP.has(dec);\n  }\n  /**\n    Set a value as a decorator\n  \n    @method setClassicDecorator\n    @param {function} decorator the value to mark as a decorator\n    @private\n  */\n\n\n  function setClassicDecorator(dec, value = true) {\n    DECORATOR_DESCRIPTOR_MAP.set(dec, value);\n  }\n\n  function finishLazyChains(obj, key, value) {\n    var meta$$1 = (0, _meta2.peekMeta)(obj);\n    var lazyTags = meta$$1 !== null ? meta$$1.readableLazyChainsFor(key) : undefined;\n\n    if (lazyTags === undefined) {\n      return;\n    }\n\n    if (value === null || typeof value !== 'object' && typeof value !== 'function') {\n      for (var path in lazyTags) {\n        delete lazyTags[path];\n      }\n\n      return;\n    }\n\n    for (var _path in lazyTags) {\n      var tag = lazyTags[_path];\n      (0, _validator.updateTag)(tag, (0, _validator.combine)(getChainTagsForKey(value, _path)));\n      delete lazyTags[_path];\n    }\n  }\n\n  function getChainTagsForKeys(obj, keys) {\n    var chainTags = [];\n\n    for (var i = 0; i < keys.length; i++) {\n      chainTags.push(...getChainTagsForKey(obj, keys[i]));\n    }\n\n    return chainTags;\n  }\n\n  function getChainTagsForKey(obj, path) {\n    var chainTags = [];\n    var current = obj;\n    var pathLength = path.length;\n    var segmentEnd = -1; // prevent closures\n\n    var segment, descriptor; // eslint-disable-next-line no-constant-condition\n\n    while (true) {\n      var currentType = typeof current;\n\n      if (current === null || currentType !== 'object' && currentType !== 'function') {\n        // we've hit the end of the chain for now, break out\n        break;\n      }\n\n      var lastSegmentEnd = segmentEnd + 1;\n      segmentEnd = path.indexOf('.', lastSegmentEnd);\n\n      if (segmentEnd === -1) {\n        segmentEnd = pathLength;\n      }\n\n      segment = path.slice(lastSegmentEnd, segmentEnd); // If the segment is an @each, we can process it and then break\n\n      if (segment === '@each' && segmentEnd !== pathLength) {\n        lastSegmentEnd = segmentEnd + 1;\n        segmentEnd = path.indexOf('.', lastSegmentEnd); // There should be exactly one segment after an `@each` (i.e. `@each.foo`, not `@each.foo.bar`)\n\n        (true && !(segmentEnd === -1) && (0, _debug.deprecate)(`When using @each in a dependent-key or an observer, ` + `you can only chain one property level deep after ` + `the @each. That is, \\`${path.slice(0, segmentEnd)}\\` ` + `is allowed but \\`${path}\\` (which is what you passed) ` + `is not.\\n\\n` + `This was never supported. Currently, the extra segments ` + `are silently ignored, i.e. \\`${path}\\` behaves exactly ` + `the same as \\`${path.slice(0, segmentEnd)}\\`. ` + `In the future, this will throw an error.\\n\\n` + `If the current behavior is acceptable for your use case, ` + `please remove the extraneous segments by changing your ` + `key to \\`${path.slice(0, segmentEnd)}\\`. ` + `Otherwise, please create an intermediary computed property ` + `or switch to using tracked properties.`, segmentEnd === -1, {\n          until: '3.17.0',\n          id: 'ember-metal.computed-deep-each'\n        }));\n        var arrLength = current.length;\n\n        if (typeof arrLength !== 'number' || // TODO: should the second test be `isEmberArray` instead?\n        !(Array.isArray(current) || 'objectAt' in current)) {\n          // If the current object isn't an array, there's nothing else to do,\n          // we don't watch individual properties. Break out of the loop.\n          break;\n        } else if (arrLength === 0) {\n          // Fast path for empty arrays\n          chainTags.push(tagForProperty(current, '[]'));\n          break;\n        }\n\n        if (segmentEnd === -1) {\n          segment = path.slice(lastSegmentEnd);\n        } else {\n          // Deprecated, remove once we turn the deprecation into an assertion\n          segment = path.slice(lastSegmentEnd, segmentEnd);\n        } // Push the tags for each item's property\n\n\n        for (var i = 0; i < arrLength; i++) {\n          var item = objectAt(current, i);\n\n          if (item) {\n            (true && !(typeof item === 'object') && (0, _debug.assert)(`When using @each to observe the array \\`${current.toString()}\\`, the items in the array must be objects`, typeof item === 'object'));\n            chainTags.push(tagForProperty(item, segment));\n          }\n        } // Push the tag for the array length itself\n\n\n        chainTags.push(tagForProperty(current, '[]'));\n        break;\n      } // TODO: Assert that current[segment] isn't an undecorated, non-MANDATORY_SETTER/dependentKeyCompat getter\n\n\n      var propertyTag = tagForProperty(current, segment);\n      descriptor = descriptorForProperty(current, segment);\n      chainTags.push(propertyTag); // If the key was an alias, we should always get the next value in order to\n      // bootstrap the alias. This is because aliases, unlike other CPs, should\n      // always be in sync with the aliased value.\n\n      if (descriptor !== undefined && typeof descriptor.altKey === 'string') {\n        current = current[segment]; // We still need to break if we're at the end of the path.\n\n        if (segmentEnd === pathLength) {\n          break;\n        } // Otherwise, continue to process the next segment\n\n\n        continue;\n      } // If we're at the end of the path, processing the last segment, and it's\n      // not an alias, we should _not_ get the last value, since we already have\n      // its tag. There's no reason to access it and do more work.\n\n\n      if (segmentEnd === pathLength) {\n        break;\n      }\n\n      if (descriptor === undefined) {\n        // If the descriptor is undefined, then its a normal property, so we should\n        // lookup the value to chain off of like normal.\n        if (!(segment in current) && typeof current.unknownProperty === 'function') {\n          current = current.unknownProperty(segment);\n        } else {\n          current = current[segment];\n        }\n      } else {\n        // If the descriptor is defined, then its a normal CP (not an alias, which\n        // would have been handled earlier). We get the last revision to check if\n        // the CP is still valid, and if so we use the cached value. If not, then\n        // we create a lazy chain lookup, and the next time the CP is calculated,\n        // it will update that lazy chain.\n        var lastRevision = getLastRevisionFor(current, segment);\n\n        if ((0, _validator.validateTag)(propertyTag, lastRevision)) {\n          current = peekCacheFor(current).get(segment);\n        } else {\n          var lazyChains = (0, _meta2.meta)(current).writableLazyChainsFor(segment);\n          var rest = path.substr(segmentEnd + 1);\n          var placeholderTag = lazyChains[rest];\n\n          if (placeholderTag === undefined) {\n            placeholderTag = lazyChains[rest] = (0, _validator.createUpdatableTag)();\n          }\n\n          chainTags.push(placeholderTag);\n          break;\n        }\n      }\n    }\n\n    if (true\n    /* DEBUG */\n    ) {\n      chainTags.forEach(t => _validator.ALLOW_CYCLES.set(t, true));\n    }\n\n    return chainTags;\n  }\n\n  function isElementDescriptor(args) {\n    var [maybeTarget, maybeKey, maybeDesc] = args;\n    return (// Ensure we have the right number of args\n      args.length === 3 && ( // Make sure the target is a class or object (prototype)\n      typeof maybeTarget === 'function' || typeof maybeTarget === 'object' && maybeTarget !== null) && // Make sure the key is a string\n      typeof maybeKey === 'string' && ( // Make sure the descriptor is the right shape\n      typeof maybeDesc === 'object' && maybeDesc !== null && 'enumerable' in maybeDesc && 'configurable' in maybeDesc || // TS compatibility\n      maybeDesc === undefined)\n    );\n  }\n\n  function nativeDescDecorator(propertyDesc) {\n    var decorator = function () {\n      return propertyDesc;\n    };\n\n    setClassicDecorator(decorator);\n    return decorator;\n  }\n  /**\n    Objects of this type can implement an interface to respond to requests to\n    get and set. The default implementation handles simple properties.\n  \n    @class Descriptor\n    @private\n  */\n\n\n  class ComputedDescriptor {\n    constructor() {\n      this.enumerable = true;\n      this.configurable = true;\n      this._dependentKeys = undefined;\n      this._meta = undefined;\n    }\n\n    setup(_obj, keyName, _propertyDesc, meta$$1) {\n      meta$$1.writeDescriptors(keyName, this);\n    }\n\n    teardown(_obj, keyName, meta$$1) {\n      meta$$1.removeDescriptors(keyName);\n    }\n\n  }\n\n  function DESCRIPTOR_GETTER_FUNCTION(name, descriptor) {\n    return function CPGETTER_FUNCTION() {\n      return descriptor.get(this, name);\n    };\n  }\n\n  function DESCRIPTOR_SETTER_FUNCTION(name, descriptor) {\n    var func = function CPSETTER_FUNCTION(value) {\n      return descriptor.set(this, name, value);\n    };\n\n    CP_SETTER_FUNCS.add(func);\n    return func;\n  }\n\n  var CP_SETTER_FUNCS = new _polyfills._WeakSet();\n\n  function makeComputedDecorator(desc, DecoratorClass) {\n    var decorator = function COMPUTED_DECORATOR(target, key, propertyDesc, maybeMeta, isClassicDecorator$$1) {\n      (true && !(isClassicDecorator$$1 || !propertyDesc || !propertyDesc.get || propertyDesc.get.toString().indexOf('CPGETTER_FUNCTION') === -1) && (0, _debug.assert)(`Only one computed property decorator can be applied to a class field or accessor, but '${key}' was decorated twice. You may have added the decorator to both a getter and setter, which is unnecessary.`, isClassicDecorator$$1 || !propertyDesc || !propertyDesc.get || propertyDesc.get.toString().indexOf('CPGETTER_FUNCTION') === -1));\n      var meta$$1 = arguments.length === 3 ? (0, _meta2.meta)(target) : maybeMeta;\n      desc.setup(target, key, propertyDesc, meta$$1);\n      var computedDesc = {\n        enumerable: desc.enumerable,\n        configurable: desc.configurable,\n        get: DESCRIPTOR_GETTER_FUNCTION(key, desc),\n        set: DESCRIPTOR_SETTER_FUNCTION(key, desc)\n      };\n      return computedDesc;\n    };\n\n    setClassicDecorator(decorator, desc);\n    Object.setPrototypeOf(decorator, DecoratorClass.prototype);\n    return decorator;\n  }\n  /**\n  @module @ember/object\n  */\n\n\n  var END_WITH_EACH_REGEX = /\\.@each$/;\n  /**\n    Expands `pattern`, invoking `callback` for each expansion.\n  \n    The only pattern supported is brace-expansion, anything else will be passed\n    once to `callback` directly.\n  \n    Example\n  \n    ```js\n    import { expandProperties } from '@ember/object/computed';\n  \n    function echo(arg){ console.log(arg); }\n  \n    expandProperties('foo.bar', echo);              //=> 'foo.bar'\n    expandProperties('{foo,bar}', echo);            //=> 'foo', 'bar'\n    expandProperties('foo.{bar,baz}', echo);        //=> 'foo.bar', 'foo.baz'\n    expandProperties('{foo,bar}.baz', echo);        //=> 'foo.baz', 'bar.baz'\n    expandProperties('foo.{bar,baz}.[]', echo)      //=> 'foo.bar.[]', 'foo.baz.[]'\n    expandProperties('{foo,bar}.{spam,eggs}', echo) //=> 'foo.spam', 'foo.eggs', 'bar.spam', 'bar.eggs'\n    expandProperties('{foo}.bar.{baz}')             //=> 'foo.bar.baz'\n    ```\n  \n    @method expandProperties\n    @static\n    @for @ember/object/computed\n    @public\n    @param {String} pattern The property pattern to expand.\n    @param {Function} callback The callback to invoke.  It is invoked once per\n    expansion, and is passed the expansion.\n  */\n\n  function expandProperties(pattern, callback) {\n    (true && !(typeof pattern === 'string') && (0, _debug.assert)(`A computed property key must be a string, you passed ${typeof pattern} ${pattern}`, typeof pattern === 'string'));\n    (true && !(pattern.indexOf(' ') === -1) && (0, _debug.assert)('Brace expanded properties cannot contain spaces, e.g. \"user.{firstName, lastName}\" should be \"user.{firstName,lastName}\"', pattern.indexOf(' ') === -1)); // regex to look for double open, double close, or unclosed braces\n\n    (true && !(pattern.match(/\\{[^}{]*\\{|\\}[^}{]*\\}|\\{[^}]*$/g) === null) && (0, _debug.assert)(`Brace expanded properties have to be balanced and cannot be nested, pattern: ${pattern}`, pattern.match(/\\{[^}{]*\\{|\\}[^}{]*\\}|\\{[^}]*$/g) === null));\n    var start = pattern.indexOf('{');\n\n    if (start < 0) {\n      callback(pattern.replace(END_WITH_EACH_REGEX, '.[]'));\n    } else {\n      dive('', pattern, start, callback);\n    }\n  }\n\n  function dive(prefix, pattern, start, callback) {\n    var end = pattern.indexOf('}'),\n        i = 0,\n        newStart,\n        arrayLength;\n    var tempArr = pattern.substring(start + 1, end).split(',');\n    var after = pattern.substring(end + 1);\n    prefix = prefix + pattern.substring(0, start);\n    arrayLength = tempArr.length;\n\n    while (i < arrayLength) {\n      newStart = after.indexOf('{');\n\n      if (newStart < 0) {\n        callback((prefix + tempArr[i++] + after).replace(END_WITH_EACH_REGEX, '.[]'));\n      } else {\n        dive(prefix + tempArr[i++], after, newStart, callback);\n      }\n    }\n  }\n  /**\n  @module @ember/object\n  */\n\n  /**\n    NOTE: This is a low-level method used by other parts of the API. You almost\n    never want to call this method directly. Instead you should use\n    `mixin()` to define new properties.\n  \n    Defines a property on an object. This method works much like the ES5\n    `Object.defineProperty()` method except that it can also accept computed\n    properties and other special descriptors.\n  \n    Normally this method takes only three parameters. However if you pass an\n    instance of `Descriptor` as the third param then you can pass an\n    optional value as the fourth parameter. This is often more efficient than\n    creating new descriptor hashes for each property.\n  \n    ## Examples\n  \n    ```javascript\n    import { defineProperty, computed } from '@ember/object';\n  \n    // ES5 compatible mode\n    defineProperty(contact, 'firstName', {\n      writable: true,\n      configurable: false,\n      enumerable: true,\n      value: 'Charles'\n    });\n  \n    // define a simple property\n    defineProperty(contact, 'lastName', undefined, 'Jolley');\n  \n    // define a computed property\n    defineProperty(contact, 'fullName', computed('firstName', 'lastName', function() {\n      return this.firstName+' '+this.lastName;\n    }));\n    ```\n  \n    @public\n    @method defineProperty\n    @static\n    @for @ember/object\n    @param {Object} obj the object to define this property on. This may be a prototype.\n    @param {String} keyName the name of the property\n    @param {Descriptor} [desc] an instance of `Descriptor` (typically a\n      computed property) or an ES5 descriptor.\n      You must provide this or `data` but not both.\n    @param {*} [data] something other than a descriptor, that will\n      become the explicit value of this property.\n  */\n\n\n  function defineProperty(obj, keyName, desc, data, meta$$1) {\n    if (meta$$1 === undefined) {\n      meta$$1 = (0, _meta2.meta)(obj);\n    }\n\n    var previousDesc = descriptorForProperty(obj, keyName, meta$$1);\n    var wasDescriptor = previousDesc !== undefined;\n\n    if (wasDescriptor) {\n      previousDesc.teardown(obj, keyName, meta$$1);\n    } // used to track if the the property being defined be enumerable\n\n\n    var enumerable = true; // Ember.NativeArray is a normal Ember.Mixin that we mix into `Array.prototype` when prototype extensions are enabled\n    // mutating a native object prototype like this should _not_ result in enumerable properties being added (or we have significant\n    // issues with things like deep equality checks from test frameworks, or things like jQuery.extend(true, [], [])).\n    //\n    // this is a hack, and we should stop mutating the array prototype by default 😫\n\n    if (obj === Array.prototype) {\n      enumerable = false;\n    }\n\n    var value;\n\n    if (isClassicDecorator(desc)) {\n      var propertyDesc;\n\n      if (true\n      /* DEBUG */\n      ) {\n        propertyDesc = desc(obj, keyName, undefined, meta$$1, true);\n      } else {\n        propertyDesc = desc(obj, keyName, undefined, meta$$1);\n      }\n\n      Object.defineProperty(obj, keyName, propertyDesc); // pass the decorator function forward for backwards compat\n\n      value = desc;\n    } else if (desc === undefined || desc === null) {\n      value = data;\n\n      if (wasDescriptor || enumerable === false) {\n        Object.defineProperty(obj, keyName, {\n          configurable: true,\n          enumerable,\n          writable: true,\n          value\n        });\n      } else {\n        if (true\n        /* DEBUG */\n        ) {\n          (0, _utils.setWithMandatorySetter)(obj, keyName, data);\n        } else {\n          obj[keyName] = data;\n        }\n      }\n    } else {\n      value = desc; // fallback to ES5\n\n      Object.defineProperty(obj, keyName, desc);\n    } // if key is being watched, override chains that\n    // were initialized with the prototype\n\n\n    if (!meta$$1.isPrototypeMeta(obj)) {\n      revalidateObservers(obj);\n    } // The `value` passed to the `didDefineProperty` hook is\n    // either the descriptor or data, whichever was passed.\n\n\n    if (typeof obj.didDefineProperty === 'function') {\n      obj.didDefineProperty(obj, keyName, value);\n    }\n  }\n\n  var firstDotIndexCache = new _utils.Cache(1000, key => key.indexOf('.'));\n\n  function isPath(path) {\n    return typeof path === 'string' && firstDotIndexCache.get(path) !== -1;\n  }\n  /**\n  @module @ember/object\n  */\n\n\n  var PROXY_CONTENT = (0, _utils.symbol)('PROXY_CONTENT');\n  _exports.PROXY_CONTENT = PROXY_CONTENT;\n  var getPossibleMandatoryProxyValue;\n\n  if (true\n  /* DEBUG */\n  && _utils.HAS_NATIVE_PROXY) {\n    getPossibleMandatoryProxyValue = function getPossibleMandatoryProxyValue(obj, keyName) {\n      var content = obj[PROXY_CONTENT];\n\n      if (content === undefined) {\n        return obj[keyName];\n      } else {\n        /* global Reflect */\n        return Reflect.get(content, keyName, obj);\n      }\n    };\n  } // ..........................................................\n  // GET AND SET\n  //\n  // If we are on a platform that supports accessors we can use those.\n  // Otherwise simulate accessors by looking up the property directly on the\n  // object.\n\n  /**\n    Gets the value of a property on an object. If the property is computed,\n    the function will be invoked. If the property is not defined but the\n    object implements the `unknownProperty` method then that will be invoked.\n  \n    ```javascript\n    import { get } from '@ember/object';\n    get(obj, \"name\");\n    ```\n  \n    If you plan to run on IE8 and older browsers then you should use this\n    method anytime you want to retrieve a property on an object that you don't\n    know for sure is private. (Properties beginning with an underscore '_'\n    are considered private.)\n  \n    On all newer browsers, you only need to use this method to retrieve\n    properties if the property might not be defined on the object and you want\n    to respect the `unknownProperty` handler. Otherwise you can ignore this\n    method.\n  \n    Note that if the object itself is `undefined`, this method will throw\n    an error.\n  \n    @method get\n    @for @ember/object\n    @static\n    @param {Object} obj The object to retrieve from.\n    @param {String} keyName The property key to retrieve\n    @return {Object} the property value or `null`.\n    @public\n  */\n\n\n  function get(obj, keyName) {\n    (true && !(arguments.length === 2) && (0, _debug.assert)(`Get must be called with two arguments; an object and a property key`, arguments.length === 2));\n    (true && !(obj !== undefined && obj !== null) && (0, _debug.assert)(`Cannot call get with '${keyName}' on an undefined object.`, obj !== undefined && obj !== null));\n    (true && !(typeof keyName === 'string' || typeof keyName === 'number' && !isNaN(keyName)) && (0, _debug.assert)(`The key provided to get must be a string or number, you passed ${keyName}`, typeof keyName === 'string' || typeof keyName === 'number' && !isNaN(keyName)));\n    (true && !(typeof keyName !== 'string' || keyName.lastIndexOf('this.', 0) !== 0) && (0, _debug.assert)(`'this' in paths is not supported`, typeof keyName !== 'string' || keyName.lastIndexOf('this.', 0) !== 0));\n    var type = typeof obj;\n    var isObject$$1 = type === 'object';\n    var isFunction = type === 'function';\n    var isObjectLike = isObject$$1 || isFunction;\n\n    if (isPath(keyName)) {\n      return isObjectLike ? _getPath(obj, keyName) : undefined;\n    }\n\n    var value;\n\n    if (isObjectLike) {\n      if (true\n      /* DEBUG */\n      && _utils.HAS_NATIVE_PROXY) {\n        value = getPossibleMandatoryProxyValue(obj, keyName);\n      } else {\n        value = obj[keyName];\n      }\n    } else {\n      value = obj[keyName];\n    }\n\n    if (value === undefined) {\n      if (isObject$$1 && !(keyName in obj) && typeof obj.unknownProperty === 'function') {\n        if (true\n        /* DEBUG */\n        ) {\n          (0, _validator.deprecateMutationsInAutotrackingTransaction)(() => {\n            value = obj.unknownProperty(keyName);\n          });\n        } else {\n          value = obj.unknownProperty(keyName);\n        }\n      }\n    }\n\n    if (isObjectLike && (0, _validator.isTracking)()) {\n      (0, _validator.consumeTag)(tagForProperty(obj, keyName)); // Add the tag of the returned value if it is an array, since arrays\n      // should always cause updates if they are consumed and then changed\n\n      if (Array.isArray(value) || (0, _utils.isEmberArray)(value)) {\n        (0, _validator.consumeTag)(tagForProperty(value, '[]'));\n      } // Add the value of the content if the value is a proxy. This is because\n      // content changes the truthiness/falsiness of the proxy.\n\n\n      if ((0, _utils.isProxy)(value)) {\n        (0, _validator.consumeTag)(tagForProperty(value, 'content'));\n      }\n    }\n\n    return value;\n  }\n\n  function _getPath(root, path) {\n    var obj = root;\n    var parts = typeof path === 'string' ? path.split('.') : path;\n\n    for (var i = 0; i < parts.length; i++) {\n      if (obj === undefined || obj === null || obj.isDestroyed) {\n        return undefined;\n      }\n\n      obj = get(obj, parts[i]);\n    }\n\n    return obj;\n  }\n  /**\n    Retrieves the value of a property from an Object, or a default value in the\n    case that the property returns `undefined`.\n  \n    ```javascript\n    import { getWithDefault } from '@ember/object';\n    getWithDefault(person, 'lastName', 'Doe');\n    ```\n  \n    @method getWithDefault\n    @for @ember/object\n    @static\n    @param {Object} obj The object to retrieve from.\n    @param {String} keyName The name of the property to retrieve\n    @param {Object} defaultValue The value to return if the property value is undefined\n    @return {Object} The property value or the defaultValue.\n    @public\n  */\n\n\n  function getWithDefault(root, key, defaultValue) {\n    var value = get(root, key);\n\n    if (value === undefined) {\n      return defaultValue;\n    }\n\n    return value;\n  }\n  /**\n   @module @ember/object\n  */\n\n  /**\n    Sets the value of a property on an object, respecting computed properties\n    and notifying observers and other listeners of the change.\n    If the specified property is not defined on the object and the object\n    implements the `setUnknownProperty` method, then instead of setting the\n    value of the property on the object, its `setUnknownProperty` handler\n    will be invoked with the two parameters `keyName` and `value`.\n  \n    ```javascript\n    import { set } from '@ember/object';\n    set(obj, \"name\", value);\n    ```\n  \n    @method set\n    @static\n    @for @ember/object\n    @param {Object} obj The object to modify.\n    @param {String} keyName The property key to set\n    @param {Object} value The value to set\n    @return {Object} the passed value.\n    @public\n  */\n\n\n  function set(obj, keyName, value, tolerant) {\n    (true && !(arguments.length === 3 || arguments.length === 4) && (0, _debug.assert)(`Set must be called with three or four arguments; an object, a property key, a value and tolerant true/false`, arguments.length === 3 || arguments.length === 4));\n    (true && !(obj && typeof obj === 'object' || typeof obj === 'function') && (0, _debug.assert)(`Cannot call set with '${keyName}' on an undefined object.`, obj && typeof obj === 'object' || typeof obj === 'function'));\n    (true && !(typeof keyName === 'string' || typeof keyName === 'number' && !isNaN(keyName)) && (0, _debug.assert)(`The key provided to set must be a string or number, you passed ${keyName}`, typeof keyName === 'string' || typeof keyName === 'number' && !isNaN(keyName)));\n    (true && !(typeof keyName !== 'string' || keyName.lastIndexOf('this.', 0) !== 0) && (0, _debug.assert)(`'this' in paths is not supported`, typeof keyName !== 'string' || keyName.lastIndexOf('this.', 0) !== 0));\n\n    if (obj.isDestroyed) {\n      (true && !(tolerant) && (0, _debug.assert)(`calling set on destroyed object: ${(0, _utils.toString)(obj)}.${keyName} = ${(0, _utils.toString)(value)}`, tolerant));\n      return;\n    }\n\n    if (isPath(keyName)) {\n      return setPath(obj, keyName, value, tolerant);\n    }\n\n    var descriptor = (0, _utils.lookupDescriptor)(obj, keyName);\n    var setter = descriptor === null ? undefined : descriptor.set;\n\n    if (setter !== undefined && CP_SETTER_FUNCS.has(setter)) {\n      obj[keyName] = value;\n      return value;\n    }\n\n    var currentValue;\n\n    if (true\n    /* DEBUG */\n    && _utils.HAS_NATIVE_PROXY) {\n      currentValue = getPossibleMandatoryProxyValue(obj, keyName);\n    } else {\n      currentValue = obj[keyName];\n    }\n\n    if (currentValue === undefined && 'object' === typeof obj && !(keyName in obj) && typeof obj.setUnknownProperty === 'function') {\n      /* unknown property */\n      obj.setUnknownProperty(keyName, value);\n    } else {\n      if (true\n      /* DEBUG */\n      ) {\n        (0, _utils.setWithMandatorySetter)(obj, keyName, value);\n      } else {\n        obj[keyName] = value;\n      }\n\n      if (currentValue !== value) {\n        notifyPropertyChange(obj, keyName);\n      }\n    }\n\n    return value;\n  }\n\n  function setPath(root, path, value, tolerant) {\n    var parts = path.split('.');\n    var keyName = parts.pop();\n    (true && !(keyName.trim().length > 0) && (0, _debug.assert)('Property set failed: You passed an empty path', keyName.trim().length > 0));\n\n    var newRoot = _getPath(root, parts);\n\n    if (newRoot !== null && newRoot !== undefined) {\n      return set(newRoot, keyName, value);\n    } else if (!tolerant) {\n      throw new _error.default(`Property set failed: object in path \"${parts.join('.')}\" could not be found.`);\n    }\n  }\n  /**\n    Error-tolerant form of `set`. Will not blow up if any part of the\n    chain is `undefined`, `null`, or destroyed.\n  \n    This is primarily used when syncing bindings, which may try to update after\n    an object has been destroyed.\n  \n    ```javascript\n    import { trySet } from '@ember/object';\n  \n    let obj = { name: \"Zoey\" };\n    trySet(obj, \"contacts.twitter\", \"@emberjs\");\n    ```\n  \n    @method trySet\n    @static\n    @for @ember/object\n    @param {Object} root The object to modify.\n    @param {String} path The property path to set\n    @param {Object} value The value to set\n    @public\n  */\n\n\n  function trySet(root, path, value) {\n    return set(root, path, value, true);\n  }\n  /**\n  @module @ember/object\n  */\n\n\n  var DEEP_EACH_REGEX = /\\.@each\\.[^.]+\\./;\n\n  function noop() {}\n  /**\n    `@computed` is a decorator that turns a JavaScript getter and setter into a\n    computed property, which is a _cached, trackable value_. By default the getter\n    will only be called once and the result will be cached. You can specify\n    various properties that your computed property depends on. This will force the\n    cached result to be cleared if the dependencies are modified, and lazily recomputed the next time something asks for it.\n  \n    In the following example we decorate a getter - `fullName` -  by calling\n    `computed` with the property dependencies (`firstName` and `lastName`) as\n    arguments. The `fullName` getter will be called once (regardless of how many\n    times it is accessed) as long as its dependencies do not change. Once\n    `firstName` or `lastName` are updated any future calls to `fullName` will\n    incorporate the new values, and any watchers of the value such as templates\n    will be updated:\n  \n    ```javascript\n    import { computed, set } from '@ember/object';\n  \n    class Person {\n      constructor(firstName, lastName) {\n        set(this, 'firstName', firstName);\n        set(this, 'lastName', lastName);\n      }\n  \n      @computed('firstName', 'lastName')\n      get fullName() {\n        return `${this.firstName} ${this.lastName}`;\n      }\n    });\n  \n    let tom = new Person('Tom', 'Dale');\n  \n    tom.fullName; // 'Tom Dale'\n    ```\n  \n    You can also provide a setter, which will be used when updating the computed\n    property. Ember's `set` function must be used to update the property\n    since it will also notify observers of the property:\n  \n    ```javascript\n    import { computed, set } from '@ember/object';\n  \n    class Person {\n      constructor(firstName, lastName) {\n        set(this, 'firstName', firstName);\n        set(this, 'lastName', lastName);\n      }\n  \n      @computed('firstName', 'lastName')\n      get fullName() {\n        return `${this.firstName} ${this.lastName}`;\n      }\n  \n      set fullName(value) {\n        let [firstName, lastName] = value.split(' ');\n  \n        set(this, 'firstName', firstName);\n        set(this, 'lastName', lastName);\n      }\n    });\n  \n    let person = new Person();\n  \n    set(person, 'fullName', 'Peter Wagenet');\n    person.firstName; // 'Peter'\n    person.lastName;  // 'Wagenet'\n    ```\n  \n    You can also pass a getter function or object with `get` and `set` functions\n    as the last argument to the computed decorator. This allows you to define\n    computed property _macros_:\n  \n    ```js\n    import { computed } from '@ember/object';\n  \n    function join(...keys) {\n      return computed(...keys, function() {\n        return keys.map(key => this[key]).join(' ');\n      });\n    }\n  \n    class Person {\n      @join('firstName', 'lastName')\n      fullName;\n    }\n    ```\n  \n    Note that when defined this way, getters and setters receive the _key_ of the\n    property they are decorating as the first argument. Setters receive the value\n    they are setting to as the second argument instead. Additionally, setters must\n    _return_ the value that should be cached:\n  \n    ```javascript\n    import { computed, set } from '@ember/object';\n  \n    function fullNameMacro(firstNameKey, lastNameKey) {\n      return computed(firstNameKey, lastNameKey, {\n        get() {\n          return `${this[firstNameKey]} ${this[lastNameKey]}`;\n        }\n  \n        set(key, value) {\n          let [firstName, lastName] = value.split(' ');\n  \n          set(this, firstNameKey, firstName);\n          set(this, lastNameKey, lastName);\n  \n          return value;\n        }\n      });\n    }\n  \n    class Person {\n      constructor(firstName, lastName) {\n        set(this, 'firstName', firstName);\n        set(this, 'lastName', lastName);\n      }\n  \n      @fullNameMacro fullName;\n    });\n  \n    let person = new Person();\n  \n    set(person, 'fullName', 'Peter Wagenet');\n    person.firstName; // 'Peter'\n    person.lastName;  // 'Wagenet'\n    ```\n  \n    Computed properties can also be used in classic classes. To do this, we\n    provide the getter and setter as the last argument like we would for a macro,\n    and we assign it to a property on the class definition. This is an _anonymous_\n    computed macro:\n  \n    ```javascript\n    import EmberObject, { computed, set } from '@ember/object';\n  \n    let Person = EmberObject.extend({\n      // these will be supplied by `create`\n      firstName: null,\n      lastName: null,\n  \n      fullName: computed('firstName', 'lastName', {\n        get() {\n          return `${this.firstName} ${this.lastName}`;\n        }\n  \n        set(key, value) {\n          let [firstName, lastName] = value.split(' ');\n  \n          set(this, 'firstName', firstName);\n          set(this, 'lastName', lastName);\n  \n          return value;\n        }\n      })\n    });\n  \n    let tom = Person.create({\n      firstName: 'Tom',\n      lastName: 'Dale'\n    });\n  \n    tom.get('fullName') // 'Tom Dale'\n    ```\n  \n    You can overwrite computed property without setters with a normal property (no\n    longer computed) that won't change if dependencies change. You can also mark\n    computed property as `.readOnly()` and block all attempts to set it.\n  \n    ```javascript\n    import { computed, set } from '@ember/object';\n  \n    class Person {\n      constructor(firstName, lastName) {\n        set(this, 'firstName', firstName);\n        set(this, 'lastName', lastName);\n      }\n  \n      @computed('firstName', 'lastName').readOnly()\n      get fullName() {\n        return `${this.firstName} ${this.lastName}`;\n      }\n    });\n  \n    let person = new Person();\n    person.set('fullName', 'Peter Wagenet'); // Uncaught Error: Cannot set read-only property \"fullName\" on object: <(...):emberXXX>\n    ```\n  \n    Additional resources:\n    - [Decorators RFC](https://github.com/emberjs/rfcs/blob/master/text/0408-decorators.md)\n    - [New CP syntax RFC](https://github.com/emberjs/rfcs/blob/master/text/0011-improved-cp-syntax.md)\n    - [New computed syntax explained in \"Ember 1.12 released\" ](https://emberjs.com/blog/2015/05/13/ember-1-12-released.html#toc_new-computed-syntax)\n  \n    @class ComputedProperty\n    @public\n  */\n\n\n  class ComputedProperty extends ComputedDescriptor {\n    constructor(args) {\n      super();\n      this._volatile = false;\n      this._readOnly = false;\n      this._hasConfig = false;\n      this._getter = undefined;\n      this._setter = undefined;\n      var maybeConfig = args[args.length - 1];\n\n      if (typeof maybeConfig === 'function' || maybeConfig !== null && typeof maybeConfig === 'object') {\n        this._hasConfig = true;\n        var config = args.pop();\n\n        if (typeof config === 'function') {\n          (true && !(!isClassicDecorator(config)) && (0, _debug.assert)(`You attempted to pass a computed property instance to computed(). Computed property instances are decorator functions, and cannot be passed to computed() because they cannot be turned into decorators twice`, !isClassicDecorator(config)));\n          this._getter = config;\n        } else {\n          var objectConfig = config;\n          (true && !(typeof objectConfig === 'object' && !Array.isArray(objectConfig)) && (0, _debug.assert)('computed expects a function or an object as last argument.', typeof objectConfig === 'object' && !Array.isArray(objectConfig)));\n          (true && !(Object.keys(objectConfig).every(key => key === 'get' || key === 'set')) && (0, _debug.assert)('Config object passed to computed can only contain `get` and `set` keys.', Object.keys(objectConfig).every(key => key === 'get' || key === 'set')));\n          (true && !(Boolean(objectConfig.get) || Boolean(objectConfig.set)) && (0, _debug.assert)('Computed properties must receive a getter or a setter, you passed none.', Boolean(objectConfig.get) || Boolean(objectConfig.set)));\n          this._getter = objectConfig.get || noop;\n          this._setter = objectConfig.set;\n        }\n      }\n\n      if (args.length > 0) {\n        this._property(...args);\n      }\n    }\n\n    setup(obj, keyName, propertyDesc, meta$$1) {\n      super.setup(obj, keyName, propertyDesc, meta$$1);\n      (true && !(!(propertyDesc && typeof propertyDesc.value === 'function')) && (0, _debug.assert)(`@computed can only be used on accessors or fields, attempted to use it with ${keyName} but that was a method. Try converting it to a getter (e.g. \\`get ${keyName}() {}\\`)`, !(propertyDesc && typeof propertyDesc.value === 'function')));\n      (true && !(!propertyDesc || !propertyDesc.initializer) && (0, _debug.assert)(`@computed can only be used on empty fields. ${keyName} has an initial value (e.g. \\`${keyName} = someValue\\`)`, !propertyDesc || !propertyDesc.initializer));\n      (true && !(!(this._hasConfig && propertyDesc && (typeof propertyDesc.get === 'function' || typeof propertyDesc.set === 'function'))) && (0, _debug.assert)(`Attempted to apply a computed property that already has a getter/setter to a ${keyName}, but it is a method or an accessor. If you passed @computed a function or getter/setter (e.g. \\`@computed({ get() { ... } })\\`), then it must be applied to a field`, !(this._hasConfig && propertyDesc && (typeof propertyDesc.get === 'function' || typeof propertyDesc.set === 'function'))));\n\n      if (this._hasConfig === false) {\n        (true && !(propertyDesc && (typeof propertyDesc.get === 'function' || typeof propertyDesc.set === 'function')) && (0, _debug.assert)(`Attempted to use @computed on ${keyName}, but it did not have a getter or a setter. You must either pass a get a function or getter/setter to @computed directly (e.g. \\`@computed({ get() { ... } })\\`) or apply @computed directly to a getter/setter`, propertyDesc && (typeof propertyDesc.get === 'function' || typeof propertyDesc.set === 'function')));\n        var {\n          get: _get,\n          set: set$$1\n        } = propertyDesc;\n\n        if (_get !== undefined) {\n          this._getter = _get;\n        }\n\n        if (set$$1 !== undefined) {\n          this._setter = function setterWrapper(_key, value) {\n            var ret = set$$1.call(this, value);\n\n            if (_get !== undefined) {\n              return typeof ret === 'undefined' ? _get.call(this) : ret;\n            }\n\n            return ret;\n          };\n        }\n      }\n    }\n    /**\n      Call on a computed property to set it into non-cached mode. When in this\n      mode the computed property will not automatically cache the return value.\n      It also does not automatically fire any change events. You must manually notify\n      any changes if you want to observe this property.\n         Dependency keys have no effect on volatile properties as they are for cache\n      invalidation and notification when cached value is invalidated.\n         Example:\n         ```javascript\n      import { computed } from '@ember/object';\n         class CallCounter {\n        _calledCount = 0;\n           @computed().volatile()\n        get calledCount() {\n          return this._calledCount++;\n        }\n      }\n      ```\n         Classic Class Example:\n         ```javascript\n      import EmberObject, { computed } from '@ember/object';\n         let CallCounter = EmberObject.extend({\n        _calledCount: 0,\n           value: computed(function() {\n          return this._calledCount++;\n        }).volatile()\n      });\n      ```\n      @method volatile\n      @deprecated\n      @return {ComputedProperty} this\n      @chainable\n      @public\n    */\n\n\n    volatile() {\n      (true && !(false) && (0, _debug.deprecate)('Setting a computed property as volatile has been deprecated. Instead, consider using a native getter with native class syntax.', false, {\n        id: 'computed-property.volatile',\n        until: '4.0.0',\n        url: 'https://emberjs.com/deprecations/v3.x#toc_computed-property-volatile'\n      }));\n      this._volatile = true;\n    }\n    /**\n      Call on a computed property to set it into read-only mode. When in this\n      mode the computed property will throw an error when set.\n         Example:\n         ```javascript\n      import { computed, set } from '@ember/object';\n         class Person {\n        @computed().readOnly()\n        get guid() {\n          return 'guid-guid-guid';\n        }\n      }\n         let person = new Person();\n      set(person, 'guid', 'new-guid'); // will throw an exception\n      ```\n         Classic Class Example:\n         ```javascript\n      import EmberObject, { computed } from '@ember/object';\n         let Person = EmberObject.extend({\n        guid: computed(function() {\n          return 'guid-guid-guid';\n        }).readOnly()\n      });\n         let person = Person.create();\n      person.set('guid', 'new-guid'); // will throw an exception\n      ```\n         @method readOnly\n      @return {ComputedProperty} this\n      @chainable\n      @public\n    */\n\n\n    readOnly() {\n      this._readOnly = true;\n      (true && !(!(this._readOnly && this._setter && this._setter !== this._getter)) && (0, _debug.assert)('Computed properties that define a setter using the new syntax cannot be read-only', !(this._readOnly && this._setter && this._setter !== this._getter)));\n    }\n    /**\n      Sets the dependent keys on this computed property. Pass any number of\n      arguments containing key paths that this computed property depends on.\n         Example:\n         ```javascript\n      import EmberObject, { computed } from '@ember/object';\n         class President {\n        constructor(firstName, lastName) {\n          set(this, 'firstName', firstName);\n          set(this, 'lastName', lastName);\n        }\n           // Tell Ember that this computed property depends on firstName\n        // and lastName\n        @computed().property('firstName', 'lastName')\n        get fullName() {\n          return `${this.firstName} ${this.lastName}`;\n        }\n      }\n         let president = new President('Barack', 'Obama');\n         president.fullName; // 'Barack Obama'\n      ```\n         Classic Class Example:\n         ```javascript\n      import EmberObject, { computed } from '@ember/object';\n         let President = EmberObject.extend({\n        fullName: computed(function() {\n          return this.get('firstName') + ' ' + this.get('lastName');\n             // Tell Ember that this computed property depends on firstName\n          // and lastName\n        }).property('firstName', 'lastName')\n      });\n         let president = President.create({\n        firstName: 'Barack',\n        lastName: 'Obama'\n      });\n         president.get('fullName'); // 'Barack Obama'\n      ```\n         @method property\n      @deprecated\n      @param {String} path* zero or more property paths\n      @return {ComputedProperty} this\n      @chainable\n      @public\n    */\n\n\n    property(...passedArgs) {\n      (true && !(false) && (0, _debug.deprecate)('Setting dependency keys using the `.property()` modifier has been deprecated. Pass the dependency keys directly to computed as arguments instead. If you are using `.property()` on a computed property macro, consider refactoring your macro to receive additional dependent keys in its initial declaration.', false, {\n        id: 'computed-property.property',\n        until: '4.0.0',\n        url: 'https://emberjs.com/deprecations/v3.x#toc_computed-property-property'\n      }));\n\n      this._property(...passedArgs);\n    }\n\n    _property(...passedArgs) {\n      var args = [];\n\n      function addArg(property) {\n        (true && (0, _debug.warn)(`Dependent keys containing @each only work one level deep. ` + `You used the key \"${property}\" which is invalid. ` + `Please create an intermediary computed property.`, DEEP_EACH_REGEX.test(property) === false, {\n          id: 'ember-metal.computed-deep-each'\n        }));\n        args.push(property);\n      }\n\n      for (var i = 0; i < passedArgs.length; i++) {\n        expandProperties(passedArgs[i], addArg);\n      }\n\n      this._dependentKeys = args;\n    }\n    /**\n      In some cases, you may want to annotate computed properties with additional\n      metadata about how they function or what values they operate on. For example,\n      computed property functions may close over variables that are then no longer\n      available for introspection. You can pass a hash of these values to a\n      computed property.\n         Example:\n         ```javascript\n      import { computed } from '@ember/object';\n      import Person from 'my-app/utils/person';\n         class Store {\n        @computed().meta({ type: Person })\n        get person() {\n          let personId = this.personId;\n          return Person.create({ id: personId });\n        }\n      }\n      ```\n         Classic Class Example:\n         ```javascript\n      import { computed } from '@ember/object';\n      import Person from 'my-app/utils/person';\n         const Store = EmberObject.extend({\n        person: computed(function() {\n          let personId = this.get('personId');\n          return Person.create({ id: personId });\n        }).meta({ type: Person })\n      });\n      ```\n         The hash that you pass to the `meta()` function will be saved on the\n      computed property descriptor under the `_meta` key. Ember runtime\n      exposes a public API for retrieving these values from classes,\n      via the `metaForProperty()` function.\n         @method meta\n      @param {Object} meta\n      @chainable\n      @public\n    */\n\n\n    get(obj, keyName) {\n      if (this._volatile) {\n        return this._getter.call(obj, keyName);\n      }\n\n      var cache = getCacheFor(obj);\n      var propertyTag = tagForProperty(obj, keyName);\n      var ret;\n\n      if (cache.has(keyName) && (0, _validator.validateTag)(propertyTag, getLastRevisionFor(obj, keyName))) {\n        ret = cache.get(keyName);\n      } else {\n        // For backwards compatibility, we only throw if the CP has any dependencies. CPs without dependencies\n        // should be allowed, even after the object has been destroyed, which is why we check _dependentKeys.\n        (true && !(this._dependentKeys === undefined || !(0, _meta2.meta)(obj).isMetaDestroyed()) && (0, _debug.assert)(`Attempted to access the computed ${obj}.${keyName} on a destroyed object, which is not allowed`, this._dependentKeys === undefined || !(0, _meta2.meta)(obj).isMetaDestroyed()));\n        var upstreamTag = undefined;\n\n        if (this._auto === true) {\n          upstreamTag = (0, _validator.track)(() => {\n            ret = this._getter.call(obj, keyName);\n          });\n        } else {\n          // Create a tracker that absorbs any trackable actions inside the CP\n          (0, _validator.untrack)(() => {\n            ret = this._getter.call(obj, keyName);\n          });\n        }\n\n        if (this._dependentKeys !== undefined) {\n          var tag = (0, _validator.combine)(getChainTagsForKeys(obj, this._dependentKeys));\n          upstreamTag = upstreamTag === undefined ? tag : (0, _validator.combine)([upstreamTag, tag]);\n        }\n\n        if (upstreamTag !== undefined) {\n          (0, _validator.updateTag)(propertyTag, upstreamTag);\n        }\n\n        setLastRevisionFor(obj, keyName, (0, _validator.valueForTag)(propertyTag));\n        cache.set(keyName, ret);\n        finishLazyChains(obj, keyName, ret);\n      }\n\n      (0, _validator.consumeTag)(propertyTag); // Add the tag of the returned value if it is an array, since arrays\n      // should always cause updates if they are consumed and then changed\n\n      if (Array.isArray(ret) || (0, _utils.isEmberArray)(ret)) {\n        (0, _validator.consumeTag)(tagForProperty(ret, '[]'));\n      }\n\n      return ret;\n    }\n\n    set(obj, keyName, value) {\n      if (this._readOnly) {\n        this._throwReadOnlyError(obj, keyName);\n      }\n\n      if (!this._setter) {\n        return this.clobberSet(obj, keyName, value);\n      }\n\n      if (this._volatile) {\n        return this.volatileSet(obj, keyName, value);\n      }\n\n      var ret;\n\n      try {\n        beginPropertyChanges();\n        ret = this._set(obj, keyName, value);\n        finishLazyChains(obj, keyName, ret);\n        var propertyTag = tagForProperty(obj, keyName);\n\n        if (this._dependentKeys !== undefined) {\n          (0, _validator.updateTag)(propertyTag, (0, _validator.combine)(getChainTagsForKeys(obj, this._dependentKeys)));\n        }\n\n        setLastRevisionFor(obj, keyName, (0, _validator.valueForTag)(propertyTag));\n      } finally {\n        endPropertyChanges();\n      }\n\n      return ret;\n    }\n\n    _throwReadOnlyError(obj, keyName) {\n      throw new _error.default(`Cannot set read-only property \"${keyName}\" on object: ${(0, _utils.inspect)(obj)}`);\n    }\n\n    clobberSet(obj, keyName, value) {\n      (true && !(false) && (0, _debug.deprecate)(`The ${(0, _utils.toString)(obj)}#${keyName} computed property was just overridden. This removes the computed property and replaces it with a plain value, and has been deprecated. If you want this behavior, consider defining a setter which does it manually.`, false, {\n        id: 'computed-property.override',\n        until: '4.0.0',\n        url: 'https://emberjs.com/deprecations/v3.x#toc_computed-property-override'\n      }));\n      var cachedValue = getCachedValueFor(obj, keyName);\n      defineProperty(obj, keyName, null, cachedValue);\n      set(obj, keyName, value);\n      return value;\n    }\n\n    volatileSet(obj, keyName, value) {\n      return this._setter.call(obj, keyName, value);\n    }\n\n    _set(obj, keyName, value) {\n      var cache = getCacheFor(obj);\n      var hadCachedValue = cache.has(keyName);\n      var cachedValue = cache.get(keyName);\n      var ret;\n      setObserverSuspended(obj, keyName, true);\n\n      try {\n        ret = this._setter.call(obj, keyName, value, cachedValue);\n      } finally {\n        setObserverSuspended(obj, keyName, false);\n      } // allows setter to return the same value that is cached already\n\n\n      if (hadCachedValue && cachedValue === ret) {\n        return ret;\n      }\n\n      var meta$$1 = (0, _meta2.meta)(obj);\n      cache.set(keyName, ret);\n      notifyPropertyChange(obj, keyName, meta$$1, value);\n      return ret;\n    }\n    /* called before property is overridden */\n\n\n    teardown(obj, keyName, meta$$1) {\n      if (!this._volatile) {\n        var cache = peekCacheFor(obj);\n\n        if (cache !== undefined) {\n          cache.delete(keyName);\n        }\n      }\n\n      super.teardown(obj, keyName, meta$$1);\n    }\n\n    auto() {\n      this._auto = true;\n    }\n\n  } // TODO: This class can be svelted once `meta` has been deprecated\n\n\n  _exports.ComputedProperty = ComputedProperty;\n\n  class ComputedDecoratorImpl extends Function {\n    readOnly() {\n      descriptorForDecorator(this).readOnly();\n      return this;\n    }\n\n    volatile() {\n      descriptorForDecorator(this).volatile();\n      return this;\n    }\n\n    property(...keys) {\n      descriptorForDecorator(this).property(...keys);\n      return this;\n    }\n\n    meta(meta$$1) {\n      var prop = descriptorForDecorator(this);\n\n      if (arguments.length === 0) {\n        return prop._meta || {};\n      } else {\n        prop._meta = meta$$1;\n        return this;\n      }\n    } // TODO: Remove this when we can provide alternatives in the ecosystem to\n    // addons such as ember-macro-helpers that use it.\n\n\n    get _getter() {\n      return descriptorForDecorator(this)._getter;\n    } // TODO: Refactor this, this is an internal API only\n\n\n    set enumerable(value) {\n      descriptorForDecorator(this).enumerable = value;\n    }\n\n  }\n\n  function computed(...args) {\n    (true && !(!(isElementDescriptor(args.slice(0, 3)) && args.length === 5 && args[4] === true)) && (0, _debug.assert)(`@computed can only be used directly as a native decorator. If you're using tracked in classic classes, add parenthesis to call it like a function: computed()`, !(isElementDescriptor(args.slice(0, 3)) && args.length === 5 && args[4] === true)));\n\n    if (isElementDescriptor(args)) {\n      var decorator = makeComputedDecorator(new ComputedProperty([]), ComputedDecoratorImpl);\n      return decorator(args[0], args[1], args[2]);\n    }\n\n    return makeComputedDecorator(new ComputedProperty(args), ComputedDecoratorImpl);\n  }\n  /**\n    Allows checking if a given property on an object is a computed property. For the most part,\n    this doesn't matter (you would normally just access the property directly and use its value),\n    but for some tooling specific scenarios (e.g. the ember-inspector) it is important to\n    differentiate if a property is a computed property or a \"normal\" property.\n  \n    This will work on either a class's prototype or an instance itself.\n  \n    @static\n    @method isComputed\n    @for @ember/debug\n    @private\n   */\n\n\n  function isComputed(obj, key) {\n    return Boolean(descriptorForProperty(obj, key));\n  }\n\n  var _globalsComputed = computed.bind(null);\n\n  _exports._globalsComputed = _globalsComputed;\n\n  function alias(altKey) {\n    (true && !(!isElementDescriptor(Array.prototype.slice.call(arguments))) && (0, _debug.assert)('You attempted to use @alias as a decorator directly, but it requires a `altKey` parameter', !isElementDescriptor(Array.prototype.slice.call(arguments))));\n    return makeComputedDecorator(new AliasedProperty(altKey), AliasDecoratorImpl);\n  } // TODO: This class can be svelted once `meta` has been deprecated\n\n\n  class AliasDecoratorImpl extends Function {\n    readOnly() {\n      descriptorForDecorator(this).readOnly();\n      return this;\n    }\n\n    oneWay() {\n      descriptorForDecorator(this).oneWay();\n      return this;\n    }\n\n    meta(meta$$1) {\n      var prop = descriptorForDecorator(this);\n\n      if (arguments.length === 0) {\n        return prop._meta || {};\n      } else {\n        prop._meta = meta$$1;\n      }\n    }\n\n  }\n\n  class AliasedProperty extends ComputedDescriptor {\n    constructor(altKey) {\n      super();\n      this.altKey = altKey;\n    }\n\n    setup(obj, keyName, propertyDesc, meta$$1) {\n      (true && !(this.altKey !== keyName) && (0, _debug.assert)(`Setting alias '${keyName}' on self`, this.altKey !== keyName));\n      super.setup(obj, keyName, propertyDesc, meta$$1);\n    }\n\n    teardown(obj, keyName, meta$$1) {\n      super.teardown(obj, keyName, meta$$1);\n    }\n\n    get(obj, keyName) {\n      var ret;\n      var propertyTag = tagForProperty(obj, keyName); // We don't use the tag since CPs are not automatic, we just want to avoid\n      // anything tracking while we get the altKey\n\n      (0, _validator.untrack)(() => {\n        ret = get(obj, this.altKey);\n      });\n      var lastRevision = getLastRevisionFor(obj, keyName);\n\n      if (!(0, _validator.validateTag)(propertyTag, lastRevision)) {\n        (0, _validator.updateTag)(propertyTag, (0, _validator.combine)(getChainTagsForKey(obj, this.altKey)));\n        setLastRevisionFor(obj, keyName, (0, _validator.valueForTag)(propertyTag));\n        finishLazyChains(obj, keyName, ret);\n      }\n\n      (0, _validator.consumeTag)(propertyTag);\n      return ret;\n    }\n\n    set(obj, _keyName, value) {\n      return set(obj, this.altKey, value);\n    }\n\n    readOnly() {\n      this.set = AliasedProperty_readOnlySet;\n    }\n\n    oneWay() {\n      this.set = AliasedProperty_oneWaySet;\n    }\n\n  }\n\n  function AliasedProperty_readOnlySet(obj, keyName) {\n    // eslint-disable-line no-unused-vars\n    throw new _error.default(`Cannot set read-only property '${keyName}' on object: ${(0, _utils.inspect)(obj)}`);\n  }\n\n  function AliasedProperty_oneWaySet(obj, keyName, value) {\n    defineProperty(obj, keyName, null);\n    return set(obj, keyName, value);\n  }\n  /**\n  @module ember\n  */\n\n  /**\n    Used internally to allow changing properties in a backwards compatible way, and print a helpful\n    deprecation warning.\n  \n    @method deprecateProperty\n    @param {Object} object The object to add the deprecated property to.\n    @param {String} deprecatedKey The property to add (and print deprecation warnings upon accessing).\n    @param {String} newKey The property that will be aliased.\n    @private\n    @since 1.7.0\n  */\n\n\n  function deprecateProperty(object, deprecatedKey, newKey, options) {\n    function _deprecate() {\n      (true && !(false) && (0, _debug.deprecate)(`Usage of \\`${deprecatedKey}\\` is deprecated, use \\`${newKey}\\` instead.`, false, options));\n    }\n\n    Object.defineProperty(object, deprecatedKey, {\n      configurable: true,\n      enumerable: false,\n\n      set(value) {\n        _deprecate();\n\n        set(this, newKey, value);\n      },\n\n      get() {\n        _deprecate();\n\n        return get(this, newKey);\n      }\n\n    });\n  }\n\n  var EACH_PROXIES = new WeakMap();\n\n  function eachProxyArrayWillChange(array, idx, removedCnt, addedCnt) {\n    var eachProxy = EACH_PROXIES.get(array);\n\n    if (eachProxy !== undefined) {\n      eachProxy.arrayWillChange(array, idx, removedCnt, addedCnt);\n    }\n  }\n\n  function eachProxyArrayDidChange(array, idx, removedCnt, addedCnt) {\n    var eachProxy = EACH_PROXIES.get(array);\n\n    if (eachProxy !== undefined) {\n      eachProxy.arrayDidChange(array, idx, removedCnt, addedCnt);\n    }\n  }\n  /**\n   @module @ember/utils\n  */\n\n  /**\n    Returns true if the passed value is null or undefined. This avoids errors\n    from JSLint complaining about use of ==, which can be technically\n    confusing.\n  \n    ```javascript\n    isNone();              // true\n    isNone(null);          // true\n    isNone(undefined);     // true\n    isNone('');            // false\n    isNone([]);            // false\n    isNone(function() {}); // false\n    ```\n  \n    @method isNone\n    @static\n    @for @ember/utils\n    @param {Object} obj Value to test\n    @return {Boolean}\n    @public\n  */\n\n\n  function isNone(obj) {\n    return obj === null || obj === undefined;\n  }\n  /**\n   @module @ember/utils\n  */\n\n  /**\n    Verifies that a value is `null` or `undefined`, an empty string, or an empty\n    array.\n  \n    Constrains the rules on `isNone` by returning true for empty strings and\n    empty arrays.\n  \n    If the value is an object with a `size` property of type number, it is used\n    to check emptiness.\n  \n    ```javascript\n    isEmpty();                 // true\n    isEmpty(null);             // true\n    isEmpty(undefined);        // true\n    isEmpty('');               // true\n    isEmpty([]);               // true\n    isEmpty({ size: 0});       // true\n    isEmpty({});               // false\n    isEmpty('Adam Hawkins');   // false\n    isEmpty([0,1,2]);          // false\n    isEmpty('\\n\\t');           // false\n    isEmpty('  ');             // false\n    isEmpty({ size: 1 })       // false\n    isEmpty({ size: () => 0 }) // false\n    ```\n  \n    @method isEmpty\n    @static\n    @for @ember/utils\n    @param {Object} obj Value to test\n    @return {Boolean}\n    @public\n  */\n\n\n  function isEmpty(obj) {\n    var none = obj === null || obj === undefined;\n\n    if (none) {\n      return none;\n    }\n\n    if (typeof obj.size === 'number') {\n      return !obj.size;\n    }\n\n    var objectType = typeof obj;\n\n    if (objectType === 'object') {\n      var size = get(obj, 'size');\n\n      if (typeof size === 'number') {\n        return !size;\n      }\n    }\n\n    if (typeof obj.length === 'number' && objectType !== 'function') {\n      return !obj.length;\n    }\n\n    if (objectType === 'object') {\n      var length = get(obj, 'length');\n\n      if (typeof length === 'number') {\n        return !length;\n      }\n    }\n\n    return false;\n  }\n  /**\n   @module @ember/utils\n  */\n\n  /**\n    A value is blank if it is empty or a whitespace string.\n  \n    ```javascript\n    import { isBlank } from '@ember/utils';\n  \n    isBlank();                // true\n    isBlank(null);            // true\n    isBlank(undefined);       // true\n    isBlank('');              // true\n    isBlank([]);              // true\n    isBlank('\\n\\t');          // true\n    isBlank('  ');            // true\n    isBlank({});              // false\n    isBlank('\\n\\t Hello');    // false\n    isBlank('Hello world');   // false\n    isBlank([1,2,3]);         // false\n    ```\n  \n    @method isBlank\n    @static\n    @for @ember/utils\n    @param {Object} obj Value to test\n    @return {Boolean}\n    @since 1.5.0\n    @public\n  */\n\n\n  function isBlank(obj) {\n    return isEmpty(obj) || typeof obj === 'string' && /\\S/.test(obj) === false;\n  }\n  /**\n   @module @ember/utils\n  */\n\n  /**\n    A value is present if it not `isBlank`.\n  \n    ```javascript\n    isPresent();                // false\n    isPresent(null);            // false\n    isPresent(undefined);       // false\n    isPresent('');              // false\n    isPresent('  ');            // false\n    isPresent('\\n\\t');          // false\n    isPresent([]);              // false\n    isPresent({ length: 0 });   // false\n    isPresent(false);           // true\n    isPresent(true);            // true\n    isPresent('string');        // true\n    isPresent(0);               // true\n    isPresent(function() {});   // true\n    isPresent({});              // true\n    isPresent('\\n\\t Hello');    // true\n    isPresent([1, 2, 3]);       // true\n    ```\n  \n    @method isPresent\n    @static\n    @for @ember/utils\n    @param {Object} obj Value to test\n    @return {Boolean}\n    @since 1.8.0\n    @public\n  */\n\n\n  function isPresent(obj) {\n    return !isBlank(obj);\n  }\n  /**\n   @module ember\n  */\n\n  /**\n    Helper class that allows you to register your library with Ember.\n  \n    Singleton created at `Ember.libraries`.\n  \n    @class Libraries\n    @constructor\n    @private\n  */\n\n\n  class Libraries {\n    constructor() {\n      this._registry = [];\n      this._coreLibIndex = 0;\n    }\n\n    _getLibraryByName(name) {\n      var libs = this._registry;\n      var count = libs.length;\n\n      for (var i = 0; i < count; i++) {\n        if (libs[i].name === name) {\n          return libs[i];\n        }\n      }\n\n      return undefined;\n    }\n\n    register(name, version, isCoreLibrary) {\n      var index = this._registry.length;\n\n      if (!this._getLibraryByName(name)) {\n        if (isCoreLibrary) {\n          index = this._coreLibIndex++;\n        }\n\n        this._registry.splice(index, 0, {\n          name,\n          version\n        });\n      } else {\n        (true && (0, _debug.warn)(`Library \"${name}\" is already registered with Ember.`, false, {\n          id: 'ember-metal.libraries-register'\n        }));\n      }\n    }\n\n    registerCoreLibrary(name, version) {\n      this.register(name, version, true);\n    }\n\n    deRegister(name) {\n      var lib = this._getLibraryByName(name);\n\n      var index;\n\n      if (lib) {\n        index = this._registry.indexOf(lib);\n\n        this._registry.splice(index, 1);\n      }\n    }\n\n  }\n\n  _exports.Libraries = Libraries;\n\n  if (true\n  /* DEBUG */\n  ) {\n    Libraries.prototype.logVersions = function () {\n      var libs = this._registry;\n      var nameLengths = libs.map(item => get(item, 'name.length'));\n      var maxNameLength = Math.max.apply(null, nameLengths);\n      (0, _debug.debug)('-------------------------------');\n\n      for (var i = 0; i < libs.length; i++) {\n        var lib = libs[i];\n        var spaces = new Array(maxNameLength - lib.name.length + 1).join(' ');\n        (0, _debug.debug)([lib.name, spaces, ' : ', lib.version].join(''));\n      }\n\n      (0, _debug.debug)('-------------------------------');\n    };\n  }\n\n  var LIBRARIES = new Libraries();\n  _exports.libraries = LIBRARIES;\n  LIBRARIES.registerCoreLibrary('Ember', _version.default);\n  /**\n   @module @ember/object\n  */\n\n  /**\n    To get multiple properties at once, call `getProperties`\n    with an object followed by a list of strings or an array:\n  \n    ```javascript\n    import { getProperties } from '@ember/object';\n  \n    getProperties(record, 'firstName', 'lastName', 'zipCode');\n    // { firstName: 'John', lastName: 'Doe', zipCode: '10011' }\n    ```\n  \n    is equivalent to:\n  \n    ```javascript\n    import { getProperties } from '@ember/object';\n  \n    getProperties(record, ['firstName', 'lastName', 'zipCode']);\n    // { firstName: 'John', lastName: 'Doe', zipCode: '10011' }\n    ```\n  \n    @method getProperties\n    @static\n    @for @ember/object\n    @param {Object} obj\n    @param {String...|Array} list of keys to get\n    @return {Object}\n    @public\n  */\n\n  function getProperties(obj, keys) {\n    var ret = {};\n    var propertyNames = arguments;\n    var i = 1;\n\n    if (arguments.length === 2 && Array.isArray(keys)) {\n      i = 0;\n      propertyNames = arguments[1];\n    }\n\n    for (; i < propertyNames.length; i++) {\n      ret[propertyNames[i]] = get(obj, propertyNames[i]);\n    }\n\n    return ret;\n  }\n  /**\n   @module @ember/object\n  */\n\n  /**\n    Set a list of properties on an object. These properties are set inside\n    a single `beginPropertyChanges` and `endPropertyChanges` batch, so\n    observers will be buffered.\n  \n    ```javascript\n    import EmberObject from '@ember/object';\n    let anObject = EmberObject.create();\n  \n    anObject.setProperties({\n      firstName: 'Stanley',\n      lastName: 'Stuart',\n      age: 21\n    });\n    ```\n  \n    @method setProperties\n    @static\n    @for @ember/object\n    @param obj\n    @param {Object} properties\n    @return properties\n    @public\n  */\n\n\n  function setProperties(obj, properties) {\n    if (properties === null || typeof properties !== 'object') {\n      return properties;\n    }\n\n    changeProperties(() => {\n      var props = Object.keys(properties);\n      var propertyName;\n\n      for (var i = 0; i < props.length; i++) {\n        propertyName = props[i];\n        set(obj, propertyName, properties[propertyName]);\n      }\n    });\n    return properties;\n  }\n  /**\n    Enqueues finalization on an object so that it can be garbage collected.\n    Multiple calls will have no effect.\n  \n    @method destroy\n    @for Ember\n    @param {Object} obj the object to destroy\n    @return {boolean} true if the object went from not destroying to destroying.\n    @private\n  */\n\n\n  function destroy(obj) {\n    (true && !(obj !== null) && (0, _debug.assert)('Cannot call `destroy` on null', obj !== null));\n    (true && !(obj !== undefined) && (0, _debug.assert)('Cannot call `destroy` on undefined', obj !== undefined));\n    (true && !(typeof obj === 'object' || typeof obj === 'function') && (0, _debug.assert)(`Cannot call \\`destroy\\` on ${typeof obj}`, typeof obj === 'object' || typeof obj === 'function'));\n    var m = (0, _meta3.peekMeta)(obj);\n\n    if (m === null || m.isSourceDestroying()) {\n      return false;\n    }\n\n    m.setSourceDestroying();\n    destroyObservers(obj);\n    (0, _runloop.schedule)('destroy', m, finalize);\n    return true;\n  }\n\n  function finalize() {\n    this.setSourceDestroyed();\n    this.destroy();\n  } // move into its own package\n  // it is needed by Mixin for classToString\n  // maybe move it into environment\n\n\n  var hasOwnProperty = Object.prototype.hasOwnProperty;\n  var searchDisabled = false;\n  var flags = {\n    _set: 0,\n    _unprocessedNamespaces: false,\n\n    get unprocessedNamespaces() {\n      return this._unprocessedNamespaces;\n    },\n\n    set unprocessedNamespaces(v) {\n      this._set++;\n      this._unprocessedNamespaces = v;\n    }\n\n  };\n  var unprocessedMixins = false;\n  var NAMESPACES = [];\n  _exports.NAMESPACES = NAMESPACES;\n  var NAMESPACES_BY_ID = Object.create(null);\n  _exports.NAMESPACES_BY_ID = NAMESPACES_BY_ID;\n\n  function addNamespace(namespace) {\n    flags.unprocessedNamespaces = true;\n    NAMESPACES.push(namespace);\n  }\n\n  function removeNamespace(namespace) {\n    var name = (0, _utils.getName)(namespace);\n    delete NAMESPACES_BY_ID[name];\n    NAMESPACES.splice(NAMESPACES.indexOf(namespace), 1);\n\n    if (name in _environment.context.lookup && namespace === _environment.context.lookup[name]) {\n      _environment.context.lookup[name] = undefined;\n    }\n  }\n\n  function findNamespaces() {\n    if (!flags.unprocessedNamespaces) {\n      return;\n    }\n\n    var lookup = _environment.context.lookup;\n    var keys = Object.keys(lookup);\n\n    for (var i = 0; i < keys.length; i++) {\n      var key = keys[i]; // Only process entities that start with uppercase A-Z\n\n      if (!isUppercase(key.charCodeAt(0))) {\n        continue;\n      }\n\n      var obj = tryIsNamespace(lookup, key);\n\n      if (obj) {\n        (0, _utils.setName)(obj, key);\n      }\n    }\n  }\n\n  function findNamespace(name) {\n    if (!searchDisabled) {\n      processAllNamespaces();\n    }\n\n    return NAMESPACES_BY_ID[name];\n  }\n\n  function processNamespace(namespace) {\n    _processNamespace([namespace.toString()], namespace, new Set());\n  }\n\n  function processAllNamespaces() {\n    var unprocessedNamespaces = flags.unprocessedNamespaces;\n\n    if (unprocessedNamespaces) {\n      findNamespaces();\n      flags.unprocessedNamespaces = false;\n    }\n\n    if (unprocessedNamespaces || unprocessedMixins) {\n      var namespaces = NAMESPACES;\n\n      for (var i = 0; i < namespaces.length; i++) {\n        processNamespace(namespaces[i]);\n      }\n\n      unprocessedMixins = false;\n    }\n  }\n\n  function classToString() {\n    var name = (0, _utils.getName)(this);\n\n    if (name !== void 0) {\n      return name;\n    }\n\n    name = calculateToString(this);\n    (0, _utils.setName)(this, name);\n    return name;\n  }\n\n  function isSearchDisabled() {\n    return searchDisabled;\n  }\n\n  function setSearchDisabled(flag) {\n    searchDisabled = Boolean(flag);\n  }\n\n  function setUnprocessedMixins() {\n    unprocessedMixins = true;\n  }\n\n  function _processNamespace(paths, root, seen) {\n    var idx = paths.length;\n    var id = paths.join('.');\n    NAMESPACES_BY_ID[id] = root;\n    (0, _utils.setName)(root, id); // Loop over all of the keys in the namespace, looking for classes\n\n    for (var key in root) {\n      if (!hasOwnProperty.call(root, key)) {\n        continue;\n      }\n\n      var obj = root[key]; // If we are processing the `Ember` namespace, for example, the\n      // `paths` will start with `[\"Ember\"]`. Every iteration through\n      // the loop will update the **second** element of this list with\n      // the key, so processing `Ember.View` will make the Array\n      // `['Ember', 'View']`.\n\n      paths[idx] = key; // If we have found an unprocessed class\n\n      if (obj && obj.toString === classToString && (0, _utils.getName)(obj) === void 0) {\n        // Replace the class' `toString` with the dot-separated path\n        (0, _utils.setName)(obj, paths.join('.')); // Support nested namespaces\n      } else if (obj && obj.isNamespace) {\n        // Skip aliased namespaces\n        if (seen.has(obj)) {\n          continue;\n        }\n\n        seen.add(obj); // Process the child namespace\n\n        _processNamespace(paths, obj, seen);\n      }\n    }\n\n    paths.length = idx; // cut out last item\n  }\n\n  function isUppercase(code) {\n    return code >= 65 && code <= 90 // A\n    ; // Z\n  }\n\n  function tryIsNamespace(lookup, prop) {\n    try {\n      var obj = lookup[prop];\n      return (obj !== null && typeof obj === 'object' || typeof obj === 'function') && obj.isNamespace && obj;\n    } catch (e) {// continue\n    }\n  }\n\n  function calculateToString(target) {\n    var str;\n\n    if (!searchDisabled) {\n      processAllNamespaces();\n      str = (0, _utils.getName)(target);\n\n      if (str !== void 0) {\n        return str;\n      }\n\n      var superclass = target;\n\n      do {\n        superclass = Object.getPrototypeOf(superclass);\n\n        if (superclass === Function.prototype || superclass === Object.prototype) {\n          break;\n        }\n\n        str = (0, _utils.getName)(target);\n\n        if (str !== void 0) {\n          str = `(subclass of ${str})`;\n          break;\n        }\n      } while (str === void 0);\n    }\n\n    return str || '(unknown)';\n  }\n  /**\n  @module @ember/object\n  */\n\n\n  var a_concat = Array.prototype.concat;\n  var {\n    isArray\n  } = Array;\n\n  function isMethod(obj) {\n    return 'function' === typeof obj && obj.isMethod !== false && obj !== Boolean && obj !== Object && obj !== Number && obj !== Array && obj !== Date && obj !== String;\n  }\n\n  function isAccessor(desc) {\n    return typeof desc.get === 'function' || typeof desc.set === 'function';\n  }\n\n  function extractAccessors(properties) {\n    if (properties !== undefined) {\n      var descriptors = (0, _utils.getOwnPropertyDescriptors)(properties);\n      var keys = Object.keys(descriptors);\n      var hasAccessors = keys.some(key => isAccessor(descriptors[key]));\n\n      if (hasAccessors) {\n        var extracted = {};\n        keys.forEach(key => {\n          var descriptor = descriptors[key];\n\n          if (isAccessor(descriptor)) {\n            extracted[key] = nativeDescDecorator(descriptor);\n          } else {\n            extracted[key] = properties[key];\n          }\n        });\n        return extracted;\n      }\n    }\n\n    return properties;\n  }\n\n  var CONTINUE = {};\n\n  function mixinProperties(mixinsMeta, mixin) {\n    if (mixin instanceof Mixin) {\n      if (mixinsMeta.hasMixin(mixin)) {\n        return CONTINUE;\n      }\n\n      mixinsMeta.addMixin(mixin);\n      return mixin.properties;\n    } else {\n      return mixin; // apply anonymous mixin properties\n    }\n  }\n\n  function concatenatedMixinProperties(concatProp, props, values, base) {\n    // reset before adding each new mixin to pickup concats from previous\n    var concats = values[concatProp] || base[concatProp];\n\n    if (props[concatProp]) {\n      concats = concats ? a_concat.call(concats, props[concatProp]) : props[concatProp];\n    }\n\n    return concats;\n  }\n\n  function giveDecoratorSuper(meta$$1, key, decorator, values, descs, base) {\n    var property = descriptorForDecorator(decorator);\n    var superProperty;\n\n    if (!(property instanceof ComputedProperty) || property._getter === undefined) {\n      return decorator;\n    } // Computed properties override methods, and do not call super to them\n\n\n    if (values[key] === undefined) {\n      // Find the original descriptor in a parent mixin\n      superProperty = descriptorForDecorator(descs[key]);\n    } // If we didn't find the original descriptor in a parent mixin, find\n    // it on the original object.\n\n\n    if (!superProperty) {\n      superProperty = descriptorForProperty(base, key, meta$$1);\n    }\n\n    if (superProperty === undefined || !(superProperty instanceof ComputedProperty)) {\n      return decorator;\n    }\n\n    var get = (0, _utils.wrap)(property._getter, superProperty._getter);\n    var set;\n\n    if (superProperty._setter) {\n      if (property._setter) {\n        set = (0, _utils.wrap)(property._setter, superProperty._setter);\n      } else {\n        // If the super property has a setter, we default to using it no matter what.\n        // This is clearly very broken and weird, but it's what was here so we have\n        // to keep it until the next major at least.\n        //\n        // TODO: Add a deprecation here.\n        set = superProperty._setter;\n      }\n    } else {\n      set = property._setter;\n    } // only create a new CP if we must\n\n\n    if (get !== property._getter || set !== property._setter) {\n      // Since multiple mixins may inherit from the same parent, we need\n      // to clone the computed property so that other mixins do not receive\n      // the wrapped version.\n      var newProperty = Object.create(property);\n      newProperty._getter = get;\n      newProperty._setter = set;\n      return makeComputedDecorator(newProperty, ComputedProperty);\n    }\n\n    return decorator;\n  }\n\n  function giveMethodSuper(obj, key, method, values, descs) {\n    // Methods overwrite computed properties, and do not call super to them.\n    if (descs[key] !== undefined) {\n      return method;\n    } // Find the original method in a parent mixin\n\n\n    var superMethod = values[key]; // If we didn't find the original value in a parent mixin, find it in\n    // the original object\n\n    if (superMethod === undefined && descriptorForProperty(obj, key) === undefined) {\n      superMethod = obj[key];\n    } // Only wrap the new method if the original method was a function\n\n\n    if (typeof superMethod === 'function') {\n      return (0, _utils.wrap)(method, superMethod);\n    }\n\n    return method;\n  }\n\n  function applyConcatenatedProperties(obj, key, value, values) {\n    var baseValue = values[key] || obj[key];\n    var ret = (0, _utils.makeArray)(baseValue).concat((0, _utils.makeArray)(value));\n\n    if (true\n    /* DEBUG */\n    ) {\n      // it is possible to use concatenatedProperties with strings (which cannot be frozen)\n      // only freeze objects...\n      if (typeof ret === 'object' && ret !== null) {\n        // prevent mutating `concatenatedProperties` array after it is applied\n        Object.freeze(ret);\n      }\n    }\n\n    return ret;\n  }\n\n  function applyMergedProperties(obj, key, value, values) {\n    var baseValue = values[key] || obj[key];\n    (true && !(!isArray(value)) && (0, _debug.assert)(`You passed in \\`${JSON.stringify(value)}\\` as the value for \\`${key}\\` but \\`${key}\\` cannot be an Array`, !isArray(value)));\n\n    if (!baseValue) {\n      return value;\n    }\n\n    var newBase = (0, _polyfills.assign)({}, baseValue);\n    var hasFunction = false;\n\n    for (var prop in value) {\n      if (!value.hasOwnProperty(prop)) {\n        continue;\n      }\n\n      var propValue = value[prop];\n\n      if (isMethod(propValue)) {\n        // TODO: support for Computed Properties, etc?\n        hasFunction = true;\n        newBase[prop] = giveMethodSuper(obj, prop, propValue, baseValue, {});\n      } else {\n        newBase[prop] = propValue;\n      }\n    }\n\n    if (hasFunction) {\n      newBase._super = _utils.ROOT;\n    }\n\n    return newBase;\n  }\n\n  function addNormalizedProperty(base, key, value, meta$$1, descs, values, concats, mergings) {\n    if (isClassicDecorator(value)) {\n      // Wrap descriptor function to implement _super() if needed\n      descs[key] = giveDecoratorSuper(meta$$1, key, value, values, descs, base);\n      values[key] = undefined;\n    } else {\n      if (concats && concats.indexOf(key) >= 0 || key === 'concatenatedProperties' || key === 'mergedProperties') {\n        value = applyConcatenatedProperties(base, key, value, values);\n      } else if (mergings && mergings.indexOf(key) > -1) {\n        value = applyMergedProperties(base, key, value, values);\n      } else if (isMethod(value)) {\n        value = giveMethodSuper(base, key, value, values, descs);\n      }\n\n      descs[key] = undefined;\n      values[key] = value;\n    }\n  }\n\n  function mergeMixins(mixins, meta$$1, descs, values, base, keys) {\n    var currentMixin, props, key, concats, mergings;\n\n    function removeKeys(keyName) {\n      delete descs[keyName];\n      delete values[keyName];\n    }\n\n    for (var i = 0; i < mixins.length; i++) {\n      currentMixin = mixins[i];\n      (true && !(typeof currentMixin === 'object' && currentMixin !== null && Object.prototype.toString.call(currentMixin) !== '[object Array]') && (0, _debug.assert)(`Expected hash or Mixin instance, got ${Object.prototype.toString.call(currentMixin)}`, typeof currentMixin === 'object' && currentMixin !== null && Object.prototype.toString.call(currentMixin) !== '[object Array]'));\n      props = mixinProperties(meta$$1, currentMixin);\n\n      if (props === CONTINUE) {\n        continue;\n      }\n\n      if (props) {\n        // remove willMergeMixin after 3.4 as it was used for _actions\n        if (base.willMergeMixin) {\n          base.willMergeMixin(props);\n        }\n\n        concats = concatenatedMixinProperties('concatenatedProperties', props, values, base);\n        mergings = concatenatedMixinProperties('mergedProperties', props, values, base);\n\n        for (key in props) {\n          if (!props.hasOwnProperty(key)) {\n            continue;\n          }\n\n          keys.push(key);\n          addNormalizedProperty(base, key, props[key], meta$$1, descs, values, concats, mergings);\n        } // manually copy toString() because some JS engines do not enumerate it\n\n\n        if (props.hasOwnProperty('toString')) {\n          base.toString = props.toString;\n        }\n      } else if (currentMixin.mixins) {\n        mergeMixins(currentMixin.mixins, meta$$1, descs, values, base, keys);\n\n        if (currentMixin._without) {\n          currentMixin._without.forEach(removeKeys);\n        }\n      }\n    }\n  }\n\n  var followMethodAlias;\n\n  if (_deprecatedFeatures.ALIAS_METHOD) {\n    followMethodAlias = function (obj, alias, descs, values) {\n      var altKey = alias.methodName;\n      var possibleDesc;\n      var desc = descs[altKey];\n      var value = values[altKey];\n\n      if (desc !== undefined || value !== undefined) {// do nothing\n      } else if ((possibleDesc = descriptorForProperty(obj, altKey)) !== undefined) {\n        desc = possibleDesc;\n        value = undefined;\n      } else {\n        desc = undefined;\n        value = obj[altKey];\n      }\n\n      return {\n        desc,\n        value\n      };\n    };\n  }\n\n  function updateObserversAndListeners(obj, key, fn, add) {\n    var observers = (0, _utils.getObservers)(fn);\n    var listeners = (0, _utils.getListeners)(fn);\n\n    if (observers !== undefined) {\n      var updateObserver = add ? addObserver : removeObserver;\n\n      for (var i = 0; i < observers.paths.length; i++) {\n        updateObserver(obj, observers.paths[i], null, key, observers.sync);\n      }\n    }\n\n    if (listeners !== undefined) {\n      var updateListener = add ? addListener : removeListener;\n\n      for (var _i = 0; _i < listeners.length; _i++) {\n        updateListener(obj, listeners[_i], null, key);\n      }\n    }\n  }\n\n  function replaceObserversAndListeners(obj, key, prev, next) {\n    if (typeof prev === 'function') {\n      updateObserversAndListeners(obj, key, prev, false);\n    }\n\n    if (typeof next === 'function') {\n      updateObserversAndListeners(obj, key, next, true);\n    }\n  }\n\n  function applyMixin(obj, mixins) {\n    var descs = {};\n    var values = {};\n    var meta$$1 = (0, _meta2.meta)(obj);\n    var keys = [];\n    var key, value, desc;\n    obj._super = _utils.ROOT; // Go through all mixins and hashes passed in, and:\n    //\n    // * Handle concatenated properties\n    // * Handle merged properties\n    // * Set up _super wrapping if necessary\n    // * Set up computed property descriptors\n    // * Copying `toString` in broken browsers\n\n    mergeMixins(mixins, meta$$1, descs, values, obj, keys);\n\n    for (var i = 0; i < keys.length; i++) {\n      key = keys[i];\n\n      if (key === 'constructor' || !values.hasOwnProperty(key)) {\n        continue;\n      }\n\n      desc = descs[key];\n      value = values[key];\n\n      if (_deprecatedFeatures.ALIAS_METHOD) {\n        while (value && value instanceof AliasImpl) {\n          var followed = followMethodAlias(obj, value, descs, values);\n          desc = followed.desc;\n          value = followed.value;\n        }\n      }\n\n      if (desc === undefined && value === undefined) {\n        continue;\n      }\n\n      if (descriptorForProperty(obj, key) !== undefined) {\n        replaceObserversAndListeners(obj, key, null, value);\n      } else {\n        replaceObserversAndListeners(obj, key, obj[key], value);\n      }\n\n      defineProperty(obj, key, desc, value, meta$$1);\n    }\n\n    return obj;\n  }\n  /**\n    @method mixin\n    @param obj\n    @param mixins*\n    @return obj\n    @private\n  */\n\n\n  function mixin(obj, ...args) {\n    applyMixin(obj, args);\n    return obj;\n  }\n  /**\n    The `Mixin` class allows you to create mixins, whose properties can be\n    added to other classes. For instance,\n  \n    ```javascript\n    import Mixin from '@ember/object/mixin';\n  \n    const EditableMixin = Mixin.create({\n      edit() {\n        console.log('starting to edit');\n        this.set('isEditing', true);\n      },\n      isEditing: false\n    });\n    ```\n  \n    ```javascript\n    import EmberObject from '@ember/object';\n    import EditableMixin from '../mixins/editable';\n  \n    // Mix mixins into classes by passing them as the first arguments to\n    // `.extend.`\n    const Comment = EmberObject.extend(EditableMixin, {\n      post: null\n    });\n  \n    let comment = Comment.create({\n      post: somePost\n    });\n  \n    comment.edit(); // outputs 'starting to edit'\n    ```\n  \n    Note that Mixins are created with `Mixin.create`, not\n    `Mixin.extend`.\n  \n    Note that mixins extend a constructor's prototype so arrays and object literals\n    defined as properties will be shared amongst objects that implement the mixin.\n    If you want to define a property in a mixin that is not shared, you can define\n    it either as a computed property or have it be created on initialization of the object.\n  \n    ```javascript\n    // filters array will be shared amongst any object implementing mixin\n    import Mixin from '@ember/object/mixin';\n    import { A } from '@ember/array';\n  \n    const FilterableMixin = Mixin.create({\n      filters: A()\n    });\n    ```\n  \n    ```javascript\n    import Mixin from '@ember/object/mixin';\n    import { A } from '@ember/array';\n    import { computed } from '@ember/object';\n  \n    // filters will be a separate array for every object implementing the mixin\n    const FilterableMixin = Mixin.create({\n      filters: computed(function() {\n        return A();\n      })\n    });\n    ```\n  \n    ```javascript\n    import Mixin from '@ember/object/mixin';\n    import { A } from '@ember/array';\n  \n    // filters will be created as a separate array during the object's initialization\n    const Filterable = Mixin.create({\n      filters: null,\n  \n      init() {\n        this._super(...arguments);\n        this.set(\"filters\", A());\n      }\n    });\n    ```\n  \n    @class Mixin\n    @public\n  */\n\n\n  class Mixin {\n    constructor(mixins, properties) {\n      this.properties = extractAccessors(properties);\n      this.mixins = buildMixinsArray(mixins);\n      this.ownerConstructor = undefined;\n      this._without = undefined;\n\n      if (true\n      /* DEBUG */\n      ) {\n        /*\n          In debug builds, we seal mixins to help avoid performance pitfalls.\n                 In IE11 there is a quirk that prevents sealed objects from being added\n          to a WeakMap. Unfortunately, the mixin system currently relies on\n          weak maps in `guidFor`, so we need to prime the guid cache weak map.\n        */\n        (0, _utils.guidFor)(this);\n        Object.seal(this);\n      }\n    }\n    /**\n      @method create\n      @for @ember/object/mixin\n      @static\n      @param arguments*\n      @public\n    */\n\n\n    static create(...args) {\n      // ES6TODO: this relies on a global state?\n      setUnprocessedMixins();\n      var M = this;\n      return new M(args, undefined);\n    } // returns the mixins currently applied to the specified object\n    // TODO: Make `mixin`\n\n\n    static mixins(obj) {\n      var meta$$1 = (0, _meta2.peekMeta)(obj);\n      var ret = [];\n\n      if (meta$$1 === null) {\n        return ret;\n      }\n\n      meta$$1.forEachMixins(currentMixin => {\n        // skip primitive mixins since these are always anonymous\n        if (!currentMixin.properties) {\n          ret.push(currentMixin);\n        }\n      });\n      return ret;\n    }\n    /**\n      @method reopen\n      @param arguments*\n      @private\n    */\n\n\n    reopen(...args) {\n      if (args.length === 0) {\n        return;\n      }\n\n      if (this.properties) {\n        var currentMixin = new Mixin(undefined, this.properties);\n        this.properties = undefined;\n        this.mixins = [currentMixin];\n      } else if (!this.mixins) {\n        this.mixins = [];\n      }\n\n      this.mixins = this.mixins.concat(buildMixinsArray(args));\n      return this;\n    }\n    /**\n      @method apply\n      @param obj\n      @return applied object\n      @private\n    */\n\n\n    apply(obj) {\n      return applyMixin(obj, [this]);\n    }\n\n    applyPartial(obj) {\n      return applyMixin(obj, [this]);\n    }\n    /**\n      @method detect\n      @param obj\n      @return {Boolean}\n      @private\n    */\n\n\n    detect(obj) {\n      if (typeof obj !== 'object' || obj === null) {\n        return false;\n      }\n\n      if (obj instanceof Mixin) {\n        return _detect(obj, this);\n      }\n\n      var meta$$1 = (0, _meta2.peekMeta)(obj);\n\n      if (meta$$1 === null) {\n        return false;\n      }\n\n      return meta$$1.hasMixin(this);\n    }\n\n    without(...args) {\n      var ret = new Mixin([this]);\n      ret._without = args;\n      return ret;\n    }\n\n    keys() {\n      return _keys(this);\n    }\n\n    toString() {\n      return '(unknown mixin)';\n    }\n\n  }\n\n  _exports.Mixin = Mixin;\n\n  function buildMixinsArray(mixins) {\n    var length = mixins && mixins.length || 0;\n    var m = undefined;\n\n    if (length > 0) {\n      m = new Array(length);\n\n      for (var i = 0; i < length; i++) {\n        var x = mixins[i];\n        (true && !(typeof x === 'object' && x !== null && Object.prototype.toString.call(x) !== '[object Array]') && (0, _debug.assert)(`Expected hash or Mixin instance, got ${Object.prototype.toString.call(x)}`, typeof x === 'object' && x !== null && Object.prototype.toString.call(x) !== '[object Array]'));\n\n        if (x instanceof Mixin) {\n          m[i] = x;\n        } else {\n          m[i] = new Mixin(undefined, x);\n        }\n      }\n    }\n\n    return m;\n  }\n\n  Mixin.prototype.toString = classToString;\n\n  if (true\n  /* DEBUG */\n  ) {\n    Object.seal(Mixin.prototype);\n  }\n\n  function _detect(curMixin, targetMixin, seen = new Set()) {\n    if (seen.has(curMixin)) {\n      return false;\n    }\n\n    seen.add(curMixin);\n\n    if (curMixin === targetMixin) {\n      return true;\n    }\n\n    var mixins = curMixin.mixins;\n\n    if (mixins) {\n      return mixins.some(mixin => _detect(mixin, targetMixin, seen));\n    }\n\n    return false;\n  }\n\n  function _keys(mixin, ret = new Set(), seen = new Set()) {\n    if (seen.has(mixin)) {\n      return;\n    }\n\n    seen.add(mixin);\n\n    if (mixin.properties) {\n      var props = Object.keys(mixin.properties);\n\n      for (var i = 0; i < props.length; i++) {\n        ret.add(props[i]);\n      }\n    } else if (mixin.mixins) {\n      mixin.mixins.forEach(x => _keys(x, ret, seen));\n    }\n\n    return ret;\n  }\n\n  var AliasImpl;\n\n  if (_deprecatedFeatures.ALIAS_METHOD) {\n    AliasImpl = class AliasImpl {\n      constructor(methodName) {\n        this.methodName = methodName;\n      }\n\n    };\n  }\n  /**\n    Makes a method available via an additional name.\n  \n    ```app/utils/person.js\n    import EmberObject, {\n      aliasMethod\n    } from '@ember/object';\n  \n    export default EmberObject.extend({\n      name() {\n        return 'Tomhuda Katzdale';\n      },\n      moniker: aliasMethod('name')\n    });\n    ```\n  \n    ```javascript\n    let goodGuy = Person.create();\n  \n    goodGuy.name();    // 'Tomhuda Katzdale'\n    goodGuy.moniker(); // 'Tomhuda Katzdale'\n    ```\n  \n    @method aliasMethod\n    @static\n    @deprecated Use a shared utility method instead\n    @for @ember/object\n    @param {String} methodName name of the method to alias\n    @public\n  */\n\n\n  var aliasMethod;\n  _exports.aliasMethod = aliasMethod;\n\n  if (_deprecatedFeatures.ALIAS_METHOD) {\n    _exports.aliasMethod = aliasMethod = function aliasMethod(methodName) {\n      (true && !(false) && (0, _debug.deprecate)(`You attempted to alias '${methodName}, but aliasMethod has been deprecated. Consider extracting the method into a shared utility function.`, false, {\n        id: 'object.alias-method',\n        until: '4.0.0',\n        url: 'https://emberjs.com/deprecations/v3.x#toc_object-alias-method'\n      }));\n      return new AliasImpl(methodName);\n    };\n  }\n\n  function observer(...args) {\n    var funcOrDef = args.pop();\n    (true && !(typeof funcOrDef === 'function' || typeof funcOrDef === 'object' && funcOrDef !== null) && (0, _debug.assert)('observer must be provided a function or an observer definition', typeof funcOrDef === 'function' || typeof funcOrDef === 'object' && funcOrDef !== null));\n    var func, dependentKeys, sync;\n\n    if (typeof funcOrDef === 'function') {\n      func = funcOrDef;\n      dependentKeys = args;\n      sync = !_environment.ENV._DEFAULT_ASYNC_OBSERVERS;\n    } else {\n      func = funcOrDef.fn;\n      dependentKeys = funcOrDef.dependentKeys;\n      sync = funcOrDef.sync;\n    }\n\n    (true && !(typeof func === 'function') && (0, _debug.assert)('observer called without a function', typeof func === 'function'));\n    (true && !(Array.isArray(dependentKeys) && dependentKeys.length > 0 && dependentKeys.every(p => typeof p === 'string' && Boolean(p.length))) && (0, _debug.assert)('observer called without valid path', Array.isArray(dependentKeys) && dependentKeys.length > 0 && dependentKeys.every(p => typeof p === 'string' && Boolean(p.length))));\n    (true && !(typeof sync === 'boolean') && (0, _debug.assert)('observer called without sync', typeof sync === 'boolean'));\n    var paths = [];\n\n    var addWatchedProperty = path => paths.push(path);\n\n    for (var i = 0; i < dependentKeys.length; ++i) {\n      expandProperties(dependentKeys[i], addWatchedProperty);\n    }\n\n    (0, _utils.setObservers)(func, {\n      paths,\n      sync\n    });\n    return func;\n  }\n\n  var DEBUG_INJECTION_FUNCTIONS;\n  _exports.DEBUG_INJECTION_FUNCTIONS = DEBUG_INJECTION_FUNCTIONS;\n\n  if (true\n  /* DEBUG */\n  ) {\n    _exports.DEBUG_INJECTION_FUNCTIONS = DEBUG_INJECTION_FUNCTIONS = new WeakMap();\n  }\n\n  function inject(type, ...args) {\n    (true && !(typeof type === 'string') && (0, _debug.assert)('a string type must be provided to inject', typeof type === 'string'));\n    var calledAsDecorator = isElementDescriptor(args);\n    var source, namespace;\n    var name = calledAsDecorator ? undefined : args[0];\n    var options = calledAsDecorator ? undefined : args[1];\n\n    var getInjection = function (propertyName) {\n      var owner = (0, _owner.getOwner)(this) || this.container; // fallback to `container` for backwards compat\n\n      (true && !(Boolean(owner)) && (0, _debug.assert)(`Attempting to lookup an injected property on an object without a container, ensure that the object was instantiated via a container.`, Boolean(owner)));\n      return owner.lookup(`${type}:${name || propertyName}`, {\n        source,\n        namespace\n      });\n    };\n\n    if (true\n    /* DEBUG */\n    ) {\n      DEBUG_INJECTION_FUNCTIONS.set(getInjection, {\n        namespace,\n        source,\n        type,\n        name\n      });\n    }\n\n    var decorator = computed({\n      get: getInjection,\n\n      set(keyName, value) {\n        defineProperty(this, keyName, null, value);\n      }\n\n    });\n\n    if (calledAsDecorator) {\n      return decorator(args[0], args[1], args[2]);\n    } else {\n      return decorator;\n    }\n  }\n\n  function tracked(...args) {\n    (true && !(!(isElementDescriptor(args.slice(0, 3)) && args.length === 5 && args[4] === true)) && (0, _debug.assert)(`@tracked can only be used directly as a native decorator. If you're using tracked in classic classes, add parenthesis to call it like a function: tracked()`, !(isElementDescriptor(args.slice(0, 3)) && args.length === 5 && args[4] === true)));\n\n    if (!isElementDescriptor(args)) {\n      var propertyDesc = args[0];\n      (true && !(args.length === 0 || typeof propertyDesc === 'object' && propertyDesc !== null) && (0, _debug.assert)(`tracked() may only receive an options object containing 'value' or 'initializer', received ${propertyDesc}`, args.length === 0 || typeof propertyDesc === 'object' && propertyDesc !== null));\n\n      if (true\n      /* DEBUG */\n      && propertyDesc) {\n        var keys = Object.keys(propertyDesc);\n        (true && !(keys.length <= 1 && (keys[0] === undefined || keys[0] === 'value' || keys[0] === 'initializer')) && (0, _debug.assert)(`The options object passed to tracked() may only contain a 'value' or 'initializer' property, not both. Received: [${keys}]`, keys.length <= 1 && (keys[0] === undefined || keys[0] === 'value' || keys[0] === 'initializer')));\n        (true && !(!('initializer' in propertyDesc) || typeof propertyDesc.initializer === 'function') && (0, _debug.assert)(`The initializer passed to tracked must be a function. Received ${propertyDesc.initializer}`, !('initializer' in propertyDesc) || typeof propertyDesc.initializer === 'function'));\n      }\n\n      var initializer = propertyDesc ? propertyDesc.initializer : undefined;\n      var value = propertyDesc ? propertyDesc.value : undefined;\n\n      var decorator = function (target, key, _desc, _meta, isClassicDecorator$$1) {\n        (true && !(isClassicDecorator$$1) && (0, _debug.assert)(`You attempted to set a default value for ${key} with the @tracked({ value: 'default' }) syntax. You can only use this syntax with classic classes. For native classes, you can use class initializers: @tracked field = 'default';`, isClassicDecorator$$1));\n        var fieldDesc = {\n          initializer: initializer || (() => value)\n        };\n        return descriptorForField([target, key, fieldDesc]);\n      };\n\n      setClassicDecorator(decorator);\n      return decorator;\n    }\n\n    return descriptorForField(args);\n  }\n\n  if (true\n  /* DEBUG */\n  ) {\n    // Normally this isn't a classic decorator, but we want to throw a helpful\n    // error in development so we need it to treat it like one\n    setClassicDecorator(tracked);\n  }\n\n  function descriptorForField([_target, key, desc]) {\n    (true && !(!desc || !desc.value && !desc.get && !desc.set) && (0, _debug.assert)(`You attempted to use @tracked on ${key}, but that element is not a class field. @tracked is only usable on class fields. Native getters and setters will autotrack add any tracked fields they encounter, so there is no need mark getters and setters with @tracked.`, !desc || !desc.value && !desc.get && !desc.set));\n    var {\n      getter,\n      setter\n    } = (0, _validator.trackedData)(key, desc ? desc.initializer : undefined);\n    return {\n      enumerable: true,\n      configurable: true,\n\n      get() {\n        var value = getter(this); // Add the tag of the returned value if it is an array, since arrays\n        // should always cause updates if they are consumed and then changed\n\n        if (Array.isArray(value) || (0, _utils.isEmberArray)(value)) {\n          (0, _validator.consumeTag)(tagForProperty(value, '[]'));\n        }\n\n        return value;\n      },\n\n      set(newValue) {\n        setter(this, newValue);\n        (0, _validator.dirtyTagFor)(this, SELF_TAG);\n      }\n\n    };\n  }\n});","define(\"@ember/-internals/owner/index\", [\"exports\", \"@ember/-internals/utils\"], function (_exports, _utils) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.getOwner = getOwner;\n  _exports.setOwner = setOwner;\n  _exports.OWNER = void 0;\n\n  /**\n  @module @ember/application\n  */\n  var OWNER = (0, _utils.symbol)('OWNER');\n  /**\n    Framework objects in an Ember application (components, services, routes, etc.)\n    are created via a factory and dependency injection system. Each of these\n    objects is the responsibility of an \"owner\", which handled its\n    instantiation and manages its lifetime.\n  \n    `getOwner` fetches the owner object responsible for an instance. This can\n    be used to lookup or resolve other class instances, or register new factories\n    into the owner.\n  \n    For example, this component dynamically looks up a service based on the\n    `audioType` passed as an argument:\n  \n    ```app/components/play-audio.js\n    import Component from '@glimmer/component';\n    import { action } from '@ember/object';\n    import { getOwner } from '@ember/application';\n  \n    // Usage:\n    //\n    //   <PlayAudio @audioType={{@model.audioType}} @audioFile={{@model.file}}/>\n    //\n    export default class extends Component {\n      get audioService() {\n        let owner = getOwner(this);\n        return owner.lookup(`service:${this.args.audioType}`);\n      }\n  \n      @action\n      onPlay() {\n        let player = this.audioService;\n        player.play(this.args.audioFile);\n      }\n    }\n    ```\n  \n    @method getOwner\n    @static\n    @for @ember/application\n    @param {Object} object An object with an owner.\n    @return {Object} An owner object.\n    @since 2.3.0\n    @public\n  */\n\n  _exports.OWNER = OWNER;\n\n  function getOwner(object) {\n    return object[OWNER];\n  }\n  /**\n    `setOwner` forces a new owner on a given object instance. This is primarily\n    useful in some testing cases.\n  \n    @method setOwner\n    @static\n    @for @ember/application\n    @param {Object} object An object instance.\n    @param {Object} object The new owner object of the object instance.\n    @since 2.3.0\n    @public\n  */\n\n\n  function setOwner(object, owner) {\n    object[OWNER] = owner;\n  }\n});","define(\"@ember/-internals/routing/index\", [\"exports\", \"@ember/-internals/routing/lib/ext/controller\", \"@ember/-internals/routing/lib/location/api\", \"@ember/-internals/routing/lib/location/none_location\", \"@ember/-internals/routing/lib/location/hash_location\", \"@ember/-internals/routing/lib/location/history_location\", \"@ember/-internals/routing/lib/location/auto_location\", \"@ember/-internals/routing/lib/system/generate_controller\", \"@ember/-internals/routing/lib/system/controller_for\", \"@ember/-internals/routing/lib/system/dsl\", \"@ember/-internals/routing/lib/system/router\", \"@ember/-internals/routing/lib/system/route\", \"@ember/-internals/routing/lib/system/query_params\", \"@ember/-internals/routing/lib/services/routing\", \"@ember/-internals/routing/lib/services/router\", \"@ember/-internals/routing/lib/system/cache\"], function (_exports, _controller, _api, _none_location, _hash_location, _history_location, _auto_location, _generate_controller, _controller_for, _dsl, _router, _route, _query_params, _routing, _router2, _cache) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"Location\", {\n    enumerable: true,\n    get: function () {\n      return _api.default;\n    }\n  });\n  Object.defineProperty(_exports, \"NoneLocation\", {\n    enumerable: true,\n    get: function () {\n      return _none_location.default;\n    }\n  });\n  Object.defineProperty(_exports, \"HashLocation\", {\n    enumerable: true,\n    get: function () {\n      return _hash_location.default;\n    }\n  });\n  Object.defineProperty(_exports, \"HistoryLocation\", {\n    enumerable: true,\n    get: function () {\n      return _history_location.default;\n    }\n  });\n  Object.defineProperty(_exports, \"AutoLocation\", {\n    enumerable: true,\n    get: function () {\n      return _auto_location.default;\n    }\n  });\n  Object.defineProperty(_exports, \"generateController\", {\n    enumerable: true,\n    get: function () {\n      return _generate_controller.default;\n    }\n  });\n  Object.defineProperty(_exports, \"generateControllerFactory\", {\n    enumerable: true,\n    get: function () {\n      return _generate_controller.generateControllerFactory;\n    }\n  });\n  Object.defineProperty(_exports, \"controllerFor\", {\n    enumerable: true,\n    get: function () {\n      return _controller_for.default;\n    }\n  });\n  Object.defineProperty(_exports, \"RouterDSL\", {\n    enumerable: true,\n    get: function () {\n      return _dsl.default;\n    }\n  });\n  Object.defineProperty(_exports, \"Router\", {\n    enumerable: true,\n    get: function () {\n      return _router.default;\n    }\n  });\n  Object.defineProperty(_exports, \"Route\", {\n    enumerable: true,\n    get: function () {\n      return _route.default;\n    }\n  });\n  Object.defineProperty(_exports, \"QueryParams\", {\n    enumerable: true,\n    get: function () {\n      return _query_params.default;\n    }\n  });\n  Object.defineProperty(_exports, \"RoutingService\", {\n    enumerable: true,\n    get: function () {\n      return _routing.default;\n    }\n  });\n  Object.defineProperty(_exports, \"RouterService\", {\n    enumerable: true,\n    get: function () {\n      return _router2.default;\n    }\n  });\n  Object.defineProperty(_exports, \"BucketCache\", {\n    enumerable: true,\n    get: function () {\n      return _cache.default;\n    }\n  });\n});","define(\"@ember/-internals/routing/lib/ext/controller\", [\"exports\", \"@ember/-internals/metal\", \"@ember/controller/lib/controller_mixin\", \"@ember/-internals/routing/lib/utils\"], function (_exports, _metal, _controller_mixin, _utils) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n  @module ember\n  */\n  _controller_mixin.default.reopen({\n    concatenatedProperties: ['queryParams'],\n\n    /**\n      Defines which query parameters the controller accepts.\n      If you give the names `['category','page']` it will bind\n      the values of these query parameters to the variables\n      `this.category` and `this.page`.\n      By default, Ember coerces query parameter values using `toggleProperty`.\n      This behavior may lead to unexpected results.\n      Available queryParam types: `boolean`, `number`, `array`.\n      If query param type not specified, it will be `string`.\n      To explicitly configure a query parameter property so it coerces as expected, you must define a type property:\n         ```javascript\n        queryParams: [{\n          category: {\n            type: 'boolean'\n          }\n        }]\n      ```\n         @for Ember.ControllerMixin\n      @property queryParams\n      @public\n    */\n    queryParams: null,\n\n    /**\n     This property is updated to various different callback functions depending on\n     the current \"state\" of the backing route. It is used by\n     `Controller.prototype._qpChanged`.\n        The methods backing each state can be found in the `Route.prototype._qp` computed\n     property return value (the `.states` property). The current values are listed here for\n     the sanity of future travelers:\n        * `inactive` - This state is used when this controller instance is not part of the active\n       route hierarchy. Set in `Route.prototype._reset` (a `router.js` microlib hook) and\n       `Route.prototype.actions.finalizeQueryParamChange`.\n     * `active` - This state is used when this controller instance is part of the active\n       route hierarchy. Set in `Route.prototype.actions.finalizeQueryParamChange`.\n     * `allowOverrides` - This state is used in `Route.prototype.setup` (`route.js` microlib hook).\n         @method _qpDelegate\n      @private\n    */\n    _qpDelegate: null,\n\n    /**\n     During `Route#setup` observers are created to invoke this method\n     when any of the query params declared in `Controller#queryParams` property\n     are changed.\n        When invoked this method uses the currently active query param update delegate\n     (see `Controller.prototype._qpDelegate` for details) and invokes it with\n     the QP key/value being changed.\n         @method _qpChanged\n      @private\n    */\n    _qpChanged(controller, _prop) {\n      var dotIndex = _prop.indexOf('.[]');\n\n      var prop = dotIndex === -1 ? _prop : _prop.slice(0, dotIndex);\n      var delegate = controller._qpDelegate;\n      var value = (0, _metal.get)(controller, prop);\n      delegate(prop, value);\n    },\n\n    /**\n      Transition the application into another route. The route may\n      be either a single route or route path:\n         ```javascript\n      aController.transitionToRoute('blogPosts');\n      aController.transitionToRoute('blogPosts.recentEntries');\n      ```\n         Optionally supply a model for the route in question. The model\n      will be serialized into the URL using the `serialize` hook of\n      the route:\n         ```javascript\n      aController.transitionToRoute('blogPost', aPost);\n      ```\n         If a literal is passed (such as a number or a string), it will\n      be treated as an identifier instead. In this case, the `model`\n      hook of the route will be triggered:\n         ```javascript\n      aController.transitionToRoute('blogPost', 1);\n      ```\n         Multiple models will be applied last to first recursively up the\n      route tree.\n         ```app/router.js\n      Router.map(function() {\n        this.route('blogPost', { path: ':blogPostId' }, function() {\n          this.route('blogComment', { path: ':blogCommentId', resetNamespace: true });\n        });\n      });\n      ```\n         ```javascript\n      aController.transitionToRoute('blogComment', aPost, aComment);\n      aController.transitionToRoute('blogComment', 1, 13);\n      ```\n         It is also possible to pass a URL (a string that starts with a\n      `/`).\n         ```javascript\n      aController.transitionToRoute('/');\n      aController.transitionToRoute('/blog/post/1/comment/13');\n      aController.transitionToRoute('/blog/posts?sort=title');\n      ```\n         An options hash with a `queryParams` property may be provided as\n      the final argument to add query parameters to the destination URL.\n         ```javascript\n      aController.transitionToRoute('blogPost', 1, {\n        queryParams: { showComments: 'true' }\n      });\n         // if you just want to transition the query parameters without changing the route\n      aController.transitionToRoute({ queryParams: { sort: 'date' } });\n      ```\n         See also [replaceRoute](/ember/release/classes/Ember.ControllerMixin/methods/replaceRoute?anchor=replaceRoute).\n         @param {String} name the name of the route or a URL\n      @param {...Object} models the model(s) or identifier(s) to be used\n        while transitioning to the route.\n      @param {Object} [options] optional hash with a queryParams property\n        containing a mapping of query parameters\n      @for Ember.ControllerMixin\n      @method transitionToRoute\n      @public\n    */\n    transitionToRoute(...args) {\n      // target may be either another controller or a router\n      var target = (0, _metal.get)(this, 'target');\n      var method = target.transitionToRoute || target.transitionTo;\n      return method.apply(target, (0, _utils.prefixRouteNameArg)(this, args));\n    },\n\n    /**\n      Transition into another route while replacing the current URL, if possible.\n      This will replace the current history entry instead of adding a new one.\n      Beside that, it is identical to `transitionToRoute` in all other respects.\n         ```javascript\n      aController.replaceRoute('blogPosts');\n      aController.replaceRoute('blogPosts.recentEntries');\n      ```\n         Optionally supply a model for the route in question. The model\n      will be serialized into the URL using the `serialize` hook of\n      the route:\n         ```javascript\n      aController.replaceRoute('blogPost', aPost);\n      ```\n         If a literal is passed (such as a number or a string), it will\n      be treated as an identifier instead. In this case, the `model`\n      hook of the route will be triggered:\n         ```javascript\n      aController.replaceRoute('blogPost', 1);\n      ```\n         Multiple models will be applied last to first recursively up the\n      route tree.\n         ```app/router.js\n      Router.map(function() {\n        this.route('blogPost', { path: ':blogPostId' }, function() {\n          this.route('blogComment', { path: ':blogCommentId', resetNamespace: true });\n        });\n      });\n      ```\n         ```\n      aController.replaceRoute('blogComment', aPost, aComment);\n      aController.replaceRoute('blogComment', 1, 13);\n      ```\n         It is also possible to pass a URL (a string that starts with a\n      `/`).\n         ```javascript\n      aController.replaceRoute('/');\n      aController.replaceRoute('/blog/post/1/comment/13');\n      ```\n         @param {String} name the name of the route or a URL\n      @param {...Object} models the model(s) or identifier(s) to be used\n      while transitioning to the route.\n      @for Ember.ControllerMixin\n      @method replaceRoute\n      @public\n    */\n    replaceRoute(...args) {\n      // target may be either another controller or a router\n      var target = (0, _metal.get)(this, 'target');\n      var method = target.replaceRoute || target.replaceWith;\n      return method.apply(target, (0, _utils.prefixRouteNameArg)(this, args));\n    }\n\n  });\n\n  var _default = _controller_mixin.default;\n  _exports.default = _default;\n});","define(\"@ember/-internals/routing/lib/location/api\", [\"exports\", \"@ember/debug\"], function (_exports, _debug) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n  @module @ember/routing\n  */\n\n  /**\n    Location returns an instance of the correct implementation of\n    the `location` API.\n  \n    ## Implementations\n  \n    You can pass an implementation name (`hash`, `history`, `none`, `auto`) to force a\n    particular implementation to be used in your application.\n  \n    See [HashLocation](/ember/release/classes/HashLocation).\n    See [HistoryLocation](/ember/release/classes/HistoryLocation).\n    See [NoneLocation](/ember/release/classes/NoneLocation).\n    See [AutoLocation](/ember/release/classes/AutoLocation).\n  \n    ## Location API\n  \n    Each location implementation must provide the following methods:\n  \n    * implementation: returns the string name used to reference the implementation.\n    * getURL: returns the current URL.\n    * setURL(path): sets the current URL.\n    * replaceURL(path): replace the current URL (optional).\n    * onUpdateURL(callback): triggers the callback when the URL changes.\n    * formatURL(url): formats `url` to be placed into `href` attribute.\n    * detect() (optional): instructs the location to do any feature detection\n        necessary. If the location needs to redirect to a different URL, it\n        can cancel routing by setting the `cancelRouterSetup` property on itself\n        to `false`.\n  \n    Calling setURL or replaceURL will not trigger onUpdateURL callbacks.\n  \n    ## Custom implementation\n  \n    Ember scans `app/locations/*` for extending the Location API.\n  \n    Example:\n  \n    ```javascript\n    import HistoryLocation from '@ember/routing/history-location';\n  \n    export default class MyHistory {\n      implementation: 'my-custom-history',\n      constructor() {\n        this._history = HistoryLocation.create(...arguments);\n      }\n      create() {\n        return new this(...arguments);\n      }\n      pushState(path) {\n         this._history.pushState(path);\n      }\n    }\n    ```\n  \n    @class Location\n    @private\n  */\n  var _default = {\n    /**\n     This is deprecated in favor of using the container to lookup the location\n     implementation as desired.\n        For example:\n        ```javascript\n     // Given a location registered as follows:\n     container.register('location:history-test', HistoryTestLocation);\n        // You could create a new instance via:\n     container.lookup('location:history-test');\n     ```\n         @method create\n      @param {Object} options\n      @return {Object} an instance of an implementation of the `location` API\n      @deprecated Use the container to lookup the location implementation that you\n      need.\n      @private\n    */\n    create(options) {\n      var implementation = options && options.implementation;\n      (true && !(Boolean(implementation)) && (0, _debug.assert)(\"Location.create: you must specify a 'implementation' option\", Boolean(implementation)));\n      var implementationClass = this.implementations[implementation];\n      (true && !(Boolean(implementationClass)) && (0, _debug.assert)(`Location.create: ${implementation} is not a valid implementation`, Boolean(implementationClass)));\n      return implementationClass.create(...arguments);\n    },\n\n    implementations: {}\n  };\n  _exports.default = _default;\n});","define(\"@ember/-internals/routing/lib/location/auto_location\", [\"exports\", \"@ember/-internals/browser-environment\", \"@ember/-internals/metal\", \"@ember/-internals/owner\", \"@ember/-internals/runtime\", \"@ember/-internals/utils\", \"@ember/debug\", \"@ember/-internals/routing/lib/location/util\"], function (_exports, _browserEnvironment, _metal, _owner, _runtime, _utils, _debug, _util) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.getHistoryPath = getHistoryPath;\n  _exports.getHashPath = getHashPath;\n  _exports.default = void 0;\n\n  /**\n  @module @ember/routing\n  */\n\n  /**\n    AutoLocation will select the best location option based off browser\n    support with the priority order: history, hash, none.\n  \n    Clean pushState paths accessed by hashchange-only browsers will be redirected\n    to the hash-equivalent and vice versa so future transitions are consistent.\n  \n    Keep in mind that since some of your users will use `HistoryLocation`, your\n    server must serve the Ember app at all the routes you define.\n  \n    Browsers that support the `history` API will use `HistoryLocation`, those that\n    do not, but still support the `hashchange` event will use `HashLocation`, and\n    in the rare case neither is supported will use `NoneLocation`.\n  \n    Example:\n  \n    ```app/router.js\n    Router.map(function() {\n      this.route('posts', function() {\n        this.route('new');\n      });\n    });\n  \n    Router.reopen({\n      location: 'auto'\n    });\n    ```\n  \n    This will result in a posts.new url of `/posts/new` for modern browsers that\n    support the `history` api or `/#/posts/new` for older ones, like Internet\n    Explorer 9 and below.\n  \n    When a user visits a link to your application, they will be automatically\n    upgraded or downgraded to the appropriate `Location` class, with the URL\n    transformed accordingly, if needed.\n  \n    Keep in mind that since some of your users will use `HistoryLocation`, your\n    server must serve the Ember app at all the routes you define.\n  \n    @class AutoLocation\n    @static\n    @protected\n  */\n  class AutoLocation extends _runtime.Object {\n    constructor() {\n      super(...arguments);\n      this.implementation = 'auto';\n    }\n    /**\n     Called by the router to instruct the location to do any feature detection\n     necessary. In the case of AutoLocation, we detect whether to use history\n     or hash concrete implementations.\n        @private\n    */\n\n\n    detect() {\n      var rootURL = this.rootURL;\n      (true && !(rootURL.charAt(rootURL.length - 1) === '/') && (0, _debug.assert)('rootURL must end with a trailing forward slash e.g. \"/app/\"', rootURL.charAt(rootURL.length - 1) === '/'));\n      var implementation = detectImplementation({\n        location: this.location,\n        history: this.history,\n        userAgent: this.userAgent,\n        rootURL,\n        documentMode: this.documentMode,\n        global: this.global\n      });\n\n      if (implementation === false) {\n        (0, _metal.set)(this, 'cancelRouterSetup', true);\n        implementation = 'none';\n      }\n\n      var concrete = (0, _owner.getOwner)(this).lookup(`location:${implementation}`);\n      (true && !(concrete !== undefined) && (0, _debug.assert)(`Could not find location '${implementation}'.`, concrete !== undefined));\n      (0, _metal.set)(concrete, 'rootURL', rootURL);\n      (0, _metal.set)(this, 'concreteImplementation', concrete);\n    }\n\n    willDestroy() {\n      var {\n        concreteImplementation\n      } = this;\n\n      if (concreteImplementation) {\n        concreteImplementation.destroy();\n      }\n    }\n\n  }\n\n  _exports.default = AutoLocation;\n  AutoLocation.reopen({\n    /**\n      @private\n         Will be pre-pended to path upon state change.\n         @since 1.5.1\n      @property rootURL\n      @default '/'\n    */\n    rootURL: '/',\n    initState: delegateToConcreteImplementation('initState'),\n    getURL: delegateToConcreteImplementation('getURL'),\n    setURL: delegateToConcreteImplementation('setURL'),\n    replaceURL: delegateToConcreteImplementation('replaceURL'),\n    onUpdateURL: delegateToConcreteImplementation('onUpdateURL'),\n    formatURL: delegateToConcreteImplementation('formatURL'),\n\n    /**\n      @private\n         The browser's `location` object. This is typically equivalent to\n      `window.location`, but may be overridden for testing.\n         @property location\n      @default environment.location\n    */\n    location: _browserEnvironment.location,\n\n    /**\n      @private\n         The browser's `history` object. This is typically equivalent to\n      `window.history`, but may be overridden for testing.\n         @since 1.5.1\n      @property history\n      @default environment.history\n    */\n    history: _browserEnvironment.history,\n\n    /**\n     @private\n        The user agent's global variable. In browsers, this will be `window`.\n        @since 1.11\n     @property global\n     @default window\n    */\n    global: _browserEnvironment.window,\n\n    /**\n      @private\n         The browser's `userAgent`. This is typically equivalent to\n      `navigator.userAgent`, but may be overridden for testing.\n         @since 1.5.1\n      @property userAgent\n      @default environment.history\n    */\n    userAgent: _browserEnvironment.userAgent,\n\n    /**\n      @private\n         This property is used by the router to know whether to cancel the routing\n      setup process, which is needed while we redirect the browser.\n         @since 1.5.1\n      @property cancelRouterSetup\n      @default false\n    */\n    cancelRouterSetup: false\n  });\n\n  function delegateToConcreteImplementation(methodName) {\n    return function (...args) {\n      var {\n        concreteImplementation\n      } = this;\n      (true && !(Boolean(concreteImplementation)) && (0, _debug.assert)(\"AutoLocation's detect() method should be called before calling any other hooks.\", Boolean(concreteImplementation)));\n      return (0, _utils.tryInvoke)(concreteImplementation, methodName, args);\n    };\n  }\n\n  function detectImplementation(options) {\n    var {\n      location,\n      userAgent,\n      history,\n      documentMode,\n      global,\n      rootURL\n    } = options;\n    var implementation = 'none';\n    var cancelRouterSetup = false;\n    var currentPath = (0, _util.getFullPath)(location);\n\n    if ((0, _util.supportsHistory)(userAgent, history)) {\n      var historyPath = getHistoryPath(rootURL, location); // If the browser supports history and we have a history path, we can use\n      // the history location with no redirects.\n\n      if (currentPath === historyPath) {\n        implementation = 'history';\n      } else if (currentPath.substr(0, 2) === '/#') {\n        history.replaceState({\n          path: historyPath\n        }, '', historyPath);\n        implementation = 'history';\n      } else {\n        cancelRouterSetup = true;\n        (0, _util.replacePath)(location, historyPath);\n      }\n    } else if ((0, _util.supportsHashChange)(documentMode, global)) {\n      var hashPath = getHashPath(rootURL, location); // Be sure we're using a hashed path, otherwise let's switch over it to so\n      // we start off clean and consistent. We'll count an index path with no\n      // hash as \"good enough\" as well.\n\n      if (currentPath === hashPath || currentPath === '/' && hashPath === '/#/') {\n        implementation = 'hash';\n      } else {\n        // Our URL isn't in the expected hash-supported format, so we want to\n        // cancel the router setup and replace the URL to start off clean\n        cancelRouterSetup = true;\n        (0, _util.replacePath)(location, hashPath);\n      }\n    }\n\n    if (cancelRouterSetup) {\n      return false;\n    }\n\n    return implementation;\n  }\n  /**\n    @private\n  \n    Returns the current path as it should appear for HistoryLocation supported\n    browsers. This may very well differ from the real current path (e.g. if it\n    starts off as a hashed URL)\n  */\n\n\n  function getHistoryPath(rootURL, location) {\n    var path = (0, _util.getPath)(location);\n    var hash = (0, _util.getHash)(location);\n    var query = (0, _util.getQuery)(location);\n    var rootURLIndex = path.indexOf(rootURL);\n    var routeHash, hashParts;\n    (true && !(rootURLIndex === 0) && (0, _debug.assert)(`Path ${path} does not start with the provided rootURL ${rootURL}`, rootURLIndex === 0)); // By convention, Ember.js routes using HashLocation are required to start\n    // with `#/`. Anything else should NOT be considered a route and should\n    // be passed straight through, without transformation.\n\n    if (hash.substr(0, 2) === '#/') {\n      // There could be extra hash segments after the route\n      hashParts = hash.substr(1).split('#'); // The first one is always the route url\n\n      routeHash = hashParts.shift(); // If the path already has a trailing slash, remove the one\n      // from the hashed route so we don't double up.\n\n      if (path.charAt(path.length - 1) === '/') {\n        routeHash = routeHash.substr(1);\n      } // This is the \"expected\" final order\n\n\n      path += routeHash + query;\n\n      if (hashParts.length) {\n        path += `#${hashParts.join('#')}`;\n      }\n    } else {\n      path += query + hash;\n    }\n\n    return path;\n  }\n  /**\n    @private\n  \n    Returns the current path as it should appear for HashLocation supported\n    browsers. This may very well differ from the real current path.\n  \n    @method _getHashPath\n  */\n\n\n  function getHashPath(rootURL, location) {\n    var path = rootURL;\n    var historyPath = getHistoryPath(rootURL, location);\n    var routePath = historyPath.substr(rootURL.length);\n\n    if (routePath !== '') {\n      if (routePath[0] !== '/') {\n        routePath = `/${routePath}`;\n      }\n\n      path += `#${routePath}`;\n    }\n\n    return path;\n  }\n});","define(\"@ember/-internals/routing/lib/location/hash_location\", [\"exports\", \"@ember/-internals/metal\", \"@ember/-internals/runtime\", \"@ember/runloop\", \"@ember/-internals/routing/lib/location/util\"], function (_exports, _metal, _runtime, _runloop, _util) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n  @module @ember/routing\n  */\n\n  /**\n    `HashLocation` implements the location API using the browser's\n    hash. At present, it relies on a `hashchange` event existing in the\n    browser.\n  \n    Using `HashLocation` results in URLs with a `#` (hash sign) separating the\n    server side URL portion of the URL from the portion that is used by Ember.\n  \n    Example:\n  \n    ```app/router.js\n    Router.map(function() {\n      this.route('posts', function() {\n        this.route('new');\n      });\n    });\n  \n    Router.reopen({\n      location: 'hash'\n    });\n    ```\n  \n    This will result in a posts.new url of `/#/posts/new`.\n  \n    @class HashLocation\n    @extends EmberObject\n    @protected\n  */\n  class HashLocation extends _runtime.Object {\n    constructor() {\n      super(...arguments);\n      this.implementation = 'hash';\n    }\n\n    init() {\n      (0, _metal.set)(this, 'location', this._location || window.location);\n      this._hashchangeHandler = undefined;\n    }\n    /**\n      @private\n         Returns normalized location.hash\n         @since 1.5.1\n      @method getHash\n    */\n\n\n    getHash() {\n      return (0, _util.getHash)(this.location);\n    }\n    /**\n      Returns the normalized URL, constructed from `location.hash`.\n         e.g. `#/foo` => `/foo` as well as `#/foo#bar` => `/foo#bar`.\n         By convention, hashed paths must begin with a forward slash, otherwise they\n      are not treated as a path so we can distinguish intent.\n         @private\n      @method getURL\n    */\n\n\n    getURL() {\n      var originalPath = this.getHash().substr(1);\n      var outPath = originalPath;\n\n      if (outPath[0] !== '/') {\n        outPath = '/'; // Only add the # if the path isn't empty.\n        // We do NOT want `/#` since the ampersand\n        // is only included (conventionally) when\n        // the location.hash has a value\n\n        if (originalPath) {\n          outPath += `#${originalPath}`;\n        }\n      }\n\n      return outPath;\n    }\n    /**\n      Set the `location.hash` and remembers what was set. This prevents\n      `onUpdateURL` callbacks from triggering when the hash was set by\n      `HashLocation`.\n         @private\n      @method setURL\n      @param path {String}\n    */\n\n\n    setURL(path) {\n      this.location.hash = path;\n      (0, _metal.set)(this, 'lastSetURL', path);\n    }\n    /**\n      Uses location.replace to update the url without a page reload\n      or history modification.\n         @private\n      @method replaceURL\n      @param path {String}\n    */\n\n\n    replaceURL(path) {\n      this.location.replace(`#${path}`);\n      (0, _metal.set)(this, 'lastSetURL', path);\n    }\n    /**\n      Register a callback to be invoked when the hash changes. These\n      callbacks will execute when the user presses the back or forward\n      button, but not after `setURL` is invoked.\n         @private\n      @method onUpdateURL\n      @param callback {Function}\n    */\n\n\n    onUpdateURL(callback) {\n      this._removeEventListener();\n\n      this._hashchangeHandler = (0, _runloop.bind)(this, function () {\n        var path = this.getURL();\n\n        if (this.lastSetURL === path) {\n          return;\n        }\n\n        (0, _metal.set)(this, 'lastSetURL', null);\n        callback(path);\n      });\n      window.addEventListener('hashchange', this._hashchangeHandler);\n    }\n    /**\n      Given a URL, formats it to be placed into the page as part\n      of an element's `href` attribute.\n         This is used, for example, when using the {{action}} helper\n      to generate a URL based on an event.\n         @private\n      @method formatURL\n      @param url {String}\n    */\n\n\n    formatURL(url) {\n      return `#${url}`;\n    }\n    /**\n      Cleans up the HashLocation event listener.\n         @private\n      @method willDestroy\n    */\n\n\n    willDestroy() {\n      this._removeEventListener();\n    }\n\n    _removeEventListener() {\n      if (this._hashchangeHandler) {\n        window.removeEventListener('hashchange', this._hashchangeHandler);\n      }\n    }\n\n  }\n\n  _exports.default = HashLocation;\n});","define(\"@ember/-internals/routing/lib/location/history_location\", [\"exports\", \"@ember/-internals/metal\", \"@ember/-internals/runtime\", \"@ember/-internals/routing/lib/location/util\"], function (_exports, _metal, _runtime, _util) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n  @module @ember/routing\n  */\n  var popstateFired = false;\n\n  function _uuid() {\n    return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function (c) {\n      var r, v;\n      r = Math.random() * 16 | 0;\n      v = c === 'x' ? r : r & 3 | 8;\n      return v.toString(16);\n    });\n  }\n  /**\n    HistoryLocation implements the location API using the browser's\n    history.pushState API.\n  \n    Using `HistoryLocation` results in URLs that are indistinguishable from a\n    standard URL. This relies upon the browser's `history` API.\n  \n    Example:\n  \n    ```app/router.js\n    Router.map(function() {\n      this.route('posts', function() {\n        this.route('new');\n      });\n    });\n  \n    Router.reopen({\n      location: 'history'\n    });\n    ```\n  \n    This will result in a posts.new url of `/posts/new`.\n  \n    Keep in mind that your server must serve the Ember app at all the routes you\n    define.\n  \n    @class HistoryLocation\n    @extends EmberObject\n    @protected\n  */\n\n\n  class HistoryLocation extends _runtime.Object {\n    constructor() {\n      super(...arguments);\n      this.implementation = 'history';\n      /**\n        Will be pre-pended to path upon state change\n               @property rootURL\n        @default '/'\n        @private\n      */\n\n      this.rootURL = '/';\n    }\n    /**\n      @private\n         Returns normalized location.hash\n         @method getHash\n    */\n\n\n    getHash() {\n      return (0, _util.getHash)(this.location);\n    }\n\n    init() {\n      this._super(...arguments);\n\n      var base = document.querySelector('base');\n      var baseURL = '';\n\n      if (base) {\n        baseURL = base.getAttribute('href');\n      }\n\n      (0, _metal.set)(this, 'baseURL', baseURL);\n      (0, _metal.set)(this, 'location', this.location || window.location);\n      this._popstateHandler = undefined;\n    }\n    /**\n      Used to set state on first call to setURL\n         @private\n      @method initState\n    */\n\n\n    initState() {\n      var history = this.history || window.history;\n      (0, _metal.set)(this, 'history', history);\n      var {\n        state\n      } = history;\n      var path = this.formatURL(this.getURL());\n\n      if (state && state.path === path) {\n        // preserve existing state\n        // used for webkit workaround, since there will be no initial popstate event\n        this._previousURL = this.getURL();\n      } else {\n        this.replaceState(path);\n      }\n    }\n    /**\n      Returns the current `location.pathname` without `rootURL` or `baseURL`\n         @private\n      @method getURL\n      @return url {String}\n    */\n\n\n    getURL() {\n      var {\n        location,\n        rootURL,\n        baseURL\n      } = this;\n      var path = location.pathname; // remove trailing slashes if they exists\n\n      rootURL = rootURL.replace(/\\/$/, '');\n      baseURL = baseURL.replace(/\\/$/, ''); // remove baseURL and rootURL from start of path\n\n      var url = path.replace(new RegExp(`^${baseURL}(?=/|$)`), '').replace(new RegExp(`^${rootURL}(?=/|$)`), '').replace(/\\/\\//g, '/'); // remove extra slashes\n\n      var search = location.search || '';\n      url += search + this.getHash();\n      return url;\n    }\n    /**\n      Uses `history.pushState` to update the url without a page reload.\n         @private\n      @method setURL\n      @param path {String}\n    */\n\n\n    setURL(path) {\n      var {\n        state\n      } = this.history;\n      path = this.formatURL(path);\n\n      if (!state || state.path !== path) {\n        this.pushState(path);\n      }\n    }\n    /**\n      Uses `history.replaceState` to update the url without a page reload\n      or history modification.\n         @private\n      @method replaceURL\n      @param path {String}\n    */\n\n\n    replaceURL(path) {\n      var {\n        state\n      } = this.history;\n      path = this.formatURL(path);\n\n      if (!state || state.path !== path) {\n        this.replaceState(path);\n      }\n    }\n    /**\n     Pushes a new state.\n        @private\n     @method pushState\n     @param path {String}\n    */\n\n\n    pushState(path) {\n      var state = {\n        path,\n        uuid: _uuid()\n      };\n      this.history.pushState(state, null, path); // used for webkit workaround\n\n      this._previousURL = this.getURL();\n    }\n    /**\n     Replaces the current state.\n        @private\n     @method replaceState\n     @param path {String}\n    */\n\n\n    replaceState(path) {\n      var state = {\n        path,\n        uuid: _uuid()\n      };\n      this.history.replaceState(state, null, path); // used for webkit workaround\n\n      this._previousURL = this.getURL();\n    }\n    /**\n      Register a callback to be invoked whenever the browser\n      history changes, including using forward and back buttons.\n         @private\n      @method onUpdateURL\n      @param callback {Function}\n    */\n\n\n    onUpdateURL(callback) {\n      this._removeEventListener();\n\n      this._popstateHandler = () => {\n        // Ignore initial page load popstate event in Chrome\n        if (!popstateFired) {\n          popstateFired = true;\n\n          if (this.getURL() === this._previousURL) {\n            return;\n          }\n        }\n\n        callback(this.getURL());\n      };\n\n      window.addEventListener('popstate', this._popstateHandler);\n    }\n    /**\n      Used when using `{{action}}` helper.  The url is always appended to the rootURL.\n         @private\n      @method formatURL\n      @param url {String}\n      @return formatted url {String}\n    */\n\n\n    formatURL(url) {\n      var {\n        rootURL,\n        baseURL\n      } = this;\n\n      if (url !== '') {\n        // remove trailing slashes if they exists\n        rootURL = rootURL.replace(/\\/$/, '');\n        baseURL = baseURL.replace(/\\/$/, '');\n      } else if (baseURL[0] === '/' && rootURL[0] === '/') {\n        // if baseURL and rootURL both start with a slash\n        // ... remove trailing slash from baseURL if it exists\n        baseURL = baseURL.replace(/\\/$/, '');\n      }\n\n      return baseURL + rootURL + url;\n    }\n    /**\n      Cleans up the HistoryLocation event listener.\n         @private\n      @method willDestroy\n    */\n\n\n    willDestroy() {\n      this._removeEventListener();\n    }\n\n    _removeEventListener() {\n      if (this._popstateHandler) {\n        window.removeEventListener('popstate', this._popstateHandler);\n      }\n    }\n\n  }\n\n  _exports.default = HistoryLocation;\n});","define(\"@ember/-internals/routing/lib/location/none_location\", [\"exports\", \"@ember/-internals/metal\", \"@ember/-internals/runtime\", \"@ember/debug\"], function (_exports, _metal, _runtime, _debug) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n  @module @ember/routing\n  */\n\n  /**\n    NoneLocation does not interact with the browser. It is useful for\n    testing, or when you need to manage state with your Router, but temporarily\n    don't want it to muck with the URL (for example when you embed your\n    application in a larger page).\n  \n    Using `NoneLocation` causes Ember to not store the applications URL state\n    in the actual URL. This is generally used for testing purposes, and is one\n    of the changes made when calling `App.setupForTesting()`.\n  \n    @class NoneLocation\n    @extends EmberObject\n    @protected\n  */\n  class NoneLocation extends _runtime.Object {\n    constructor() {\n      super(...arguments);\n      this.implementation = 'none';\n    }\n\n    detect() {\n      var {\n        rootURL\n      } = this;\n      (true && !(rootURL.charAt(rootURL.length - 1) === '/') && (0, _debug.assert)('rootURL must end with a trailing forward slash e.g. \"/app/\"', rootURL.charAt(rootURL.length - 1) === '/'));\n    }\n    /**\n      Returns the current path without `rootURL`.\n         @private\n      @method getURL\n      @return {String} path\n    */\n\n\n    getURL() {\n      var {\n        path,\n        rootURL\n      } = this; // remove trailing slashes if they exists\n\n      rootURL = rootURL.replace(/\\/$/, ''); // remove rootURL from url\n\n      return path.replace(new RegExp(`^${rootURL}(?=/|$)`), '');\n    }\n    /**\n      Set the path and remembers what was set. Using this method\n      to change the path will not invoke the `updateURL` callback.\n         @private\n      @method setURL\n      @param path {String}\n    */\n\n\n    setURL(path) {\n      (0, _metal.set)(this, 'path', path);\n    }\n    /**\n      Register a callback to be invoked when the path changes. These\n      callbacks will execute when the user presses the back or forward\n      button, but not after `setURL` is invoked.\n         @private\n      @method onUpdateURL\n      @param callback {Function}\n    */\n\n\n    onUpdateURL(callback) {\n      this.updateCallback = callback;\n    }\n    /**\n      Sets the path and calls the `updateURL` callback.\n         @private\n      @method handleURL\n      @param url {String}\n    */\n\n\n    handleURL(url) {\n      (0, _metal.set)(this, 'path', url);\n      this.updateCallback(url);\n    }\n    /**\n      Given a URL, formats it to be placed into the page as part\n      of an element's `href` attribute.\n         This is used, for example, when using the {{action}} helper\n      to generate a URL based on an event.\n         @private\n      @method formatURL\n      @param url {String}\n      @return {String} url\n    */\n\n\n    formatURL(url) {\n      var {\n        rootURL\n      } = this;\n\n      if (url !== '') {\n        // remove trailing slashes if they exists\n        rootURL = rootURL.replace(/\\/$/, '');\n      }\n\n      return rootURL + url;\n    }\n\n  }\n\n  _exports.default = NoneLocation;\n  NoneLocation.reopen({\n    path: '',\n\n    /**\n      Will be pre-pended to path.\n         @private\n      @property rootURL\n      @default '/'\n    */\n    rootURL: '/'\n  });\n});","define(\"@ember/-internals/routing/lib/location/util\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.getPath = getPath;\n  _exports.getQuery = getQuery;\n  _exports.getHash = getHash;\n  _exports.getFullPath = getFullPath;\n  _exports.getOrigin = getOrigin;\n  _exports.supportsHashChange = supportsHashChange;\n  _exports.supportsHistory = supportsHistory;\n  _exports.replacePath = replacePath;\n\n  /**\n    @private\n  \n    Returns the current `location.pathname`, normalized for IE inconsistencies.\n  */\n  function getPath(location) {\n    var pathname = location.pathname; // Various versions of IE/Opera don't always return a leading slash\n\n    if (pathname[0] !== '/') {\n      pathname = `/${pathname}`;\n    }\n\n    return pathname;\n  }\n  /**\n    @private\n  \n    Returns the current `location.search`.\n  */\n\n\n  function getQuery(location) {\n    return location.search;\n  }\n  /**\n    @private\n  \n    Returns the hash or empty string\n  */\n\n\n  function getHash(location) {\n    if (location.hash !== undefined) {\n      return location.hash.substr(0);\n    }\n\n    return '';\n  }\n\n  function getFullPath(location) {\n    return getPath(location) + getQuery(location) + getHash(location);\n  }\n\n  function getOrigin(location) {\n    var origin = location.origin; // Older browsers, especially IE, don't have origin\n\n    if (!origin) {\n      origin = `${location.protocol}//${location.hostname}`;\n\n      if (location.port) {\n        origin += `:${location.port}`;\n      }\n    }\n\n    return origin;\n  }\n  /*\n    `documentMode` only exist in Internet Explorer, and it's tested because IE8 running in\n    IE7 compatibility mode claims to support `onhashchange` but actually does not.\n  \n    `global` is an object that may have an `onhashchange` property.\n  \n    @private\n    @function supportsHashChange\n  */\n\n\n  function supportsHashChange(documentMode, global) {\n    return global && 'onhashchange' in global && (documentMode === undefined || documentMode > 7);\n  }\n  /*\n    `userAgent` is a user agent string. We use user agent testing here, because\n    the stock Android browser is known to have buggy versions of the History API,\n    in some Android versions.\n  \n    @private\n    @function supportsHistory\n  */\n\n\n  function supportsHistory(userAgent, history) {\n    // Boosted from Modernizr: https://github.com/Modernizr/Modernizr/blob/master/feature-detects/history.js\n    // The stock browser on Android 2.2 & 2.3, and 4.0.x returns positive on history support\n    // Unfortunately support is really buggy and there is no clean way to detect\n    // these bugs, so we fall back to a user agent sniff :(\n    // We only want Android 2 and 4.0, stock browser, and not Chrome which identifies\n    // itself as 'Mobile Safari' as well, nor Windows Phone.\n    if ((userAgent.indexOf('Android 2.') !== -1 || userAgent.indexOf('Android 4.0') !== -1) && userAgent.indexOf('Mobile Safari') !== -1 && userAgent.indexOf('Chrome') === -1 && userAgent.indexOf('Windows Phone') === -1) {\n      return false;\n    }\n\n    return Boolean(history && 'pushState' in history);\n  }\n  /**\n    Replaces the current location, making sure we explicitly include the origin\n    to prevent redirecting to a different origin.\n  \n    @private\n  */\n\n\n  function replacePath(location, path) {\n    location.replace(getOrigin(location) + path);\n  }\n});","define(\"@ember/-internals/routing/lib/services/router\", [\"exports\", \"@ember/-internals/runtime\", \"@ember/debug\", \"@ember/object/computed\", \"@ember/service\", \"@ember/-internals/routing/lib/utils\"], function (_exports, _runtime, _debug, _computed, _service, _utils) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n  var freezeRouteInfo;\n\n  if (true\n  /* DEBUG */\n  ) {\n    freezeRouteInfo = transition => {\n      if (transition.from !== null && !Object.isFrozen(transition.from)) {\n        Object.freeze(transition.from);\n      }\n\n      if (transition.to !== null && !Object.isFrozen(transition.to)) {\n        Object.freeze(transition.to);\n      }\n    };\n  }\n\n  function cleanURL(url, rootURL) {\n    if (rootURL === '/') {\n      return url;\n    }\n\n    return url.substr(rootURL.length, url.length);\n  }\n  /**\n     The Router service is the public API that provides access to the router.\n  \n     The immediate benefit of the Router service is that you can inject it into components,\n     giving them a friendly way to initiate transitions and ask questions about the current\n     global router state.\n  \n     In this example, the Router service is injected into a component to initiate a transition\n     to a dedicated route:\n  \n     ```app/components/example.js\n     import Component from '@glimmer/component';\n     import { action } from '@ember/object';\n     import { inject as service } from '@ember/service';\n  \n     export default class ExampleComponent extends Component {\n       @service router;\n  \n       @action\n       next() {\n         this.router.transitionTo('other.route');\n       }\n     }\n     ```\n  \n     Like any service, it can also be injected into helpers, routes, etc.\n  \n     @public\n     @extends Service\n     @class RouterService\n   */\n\n\n  class RouterService extends _service.default {\n    init() {\n      super.init(...arguments);\n\n      this._router.on('routeWillChange', transition => {\n        if (true\n        /* DEBUG */\n        ) {\n          freezeRouteInfo(transition);\n        }\n\n        this.trigger('routeWillChange', transition);\n      });\n\n      this._router.on('routeDidChange', transition => {\n        if (true\n        /* DEBUG */\n        ) {\n          freezeRouteInfo(transition);\n        }\n\n        this.trigger('routeDidChange', transition);\n      });\n    }\n    /**\n       Transition the application into another route. The route may\n       be either a single route or route path:\n          See [transitionTo](/ember/release/classes/Route/methods/transitionTo?anchor=transitionTo) for more info.\n          Calling `transitionTo` from the Router service will cause default query parameter values to be included in the URL.\n       This behavior is different from calling `transitionTo` on a route or `transitionToRoute` on a controller.\n       See the [Router Service RFC](https://github.com/emberjs/rfcs/blob/master/text/0095-router-service.md#query-parameter-semantics) for more info.\n          In the following example we use the Router service to navigate to a route with a\n       specific model from a Component in the first action, and in the second we trigger\n       a query-params only transition.\n          ```app/components/example.js\n       import Component from '@glimmer/component';\n       import { action } from '@ember/object';\n       import { inject as service } from '@ember/service';\n          export default class extends Component {\n         @service router;\n            @action\n         goToComments(post) {\n           this.router.transitionTo('comments', post);\n         }\n            @action\n         fetchMoreComments(latestComment) {\n           this.router.transitionTo({\n             queryParams: { commentsAfter: latestComment }\n           });\n         }\n       }\n       ```\n          @method transitionTo\n       @param {String} [routeNameOrUrl] the name of the route or a URL\n       @param {...Object} [models] the model(s) or identifier(s) to be used while\n         transitioning to the route.\n       @param {Object} [options] optional hash with a queryParams property\n         containing a mapping of query parameters. May be supplied as the only\n        parameter to trigger a query-parameter-only transition.\n       @return {Transition} the transition object associated with this\n         attempted transition\n       @public\n     */\n\n\n    transitionTo(...args) {\n      if ((0, _utils.resemblesURL)(args[0])) {\n        // NOTE: this `args[0] as string` cast is safe and TS correctly infers it\n        // in 3.6+, so it can be removed when TS is upgraded.\n        return this._router._doURLTransition('transitionTo', args[0]);\n      }\n\n      var {\n        routeName,\n        models,\n        queryParams\n      } = (0, _utils.extractRouteArgs)(args);\n\n      var transition = this._router._doTransition(routeName, models, queryParams, true);\n\n      transition['_keepDefaultQueryParamValues'] = true;\n      return transition;\n    }\n    /**\n       Similar to `transitionTo`, but instead of adding the destination to the browser's URL history,\n       it replaces the entry for the current route.\n       When the user clicks the \"back\" button in the browser, there will be fewer steps.\n       This is most commonly used to manage redirects in a way that does not cause confusing additions\n       to the user's browsing history.\n          See [replaceWith](/ember/release/classes/Route/methods/replaceWith?anchor=replaceWith) for more info.\n          Calling `replaceWith` from the Router service will cause default query parameter values to be included in the URL.\n       This behavior is different from calling `replaceWith` on a route.\n       See the [Router Service RFC](https://github.com/emberjs/rfcs/blob/master/text/0095-router-service.md#query-parameter-semantics) for more info.\n          Usage example:\n          ```app/routes/application.js\n       import Route from '@ember/routing/route';\n          export default class extends Route {\n         beforeModel() {\n           if (!authorized()){\n             this.replaceWith('unauthorized');\n           }\n         }\n       });\n       ```\n          @method replaceWith\n       @param {String} routeNameOrUrl the name of the route or a URL of the desired destination\n       @param {...Object} models the model(s) or identifier(s) to be used while\n         transitioning to the route i.e. an object of params to pass to the destination route\n       @param {Object} [options] optional hash with a queryParams property\n         containing a mapping of query parameters\n       @return {Transition} the transition object associated with this\n         attempted transition\n       @public\n     */\n\n\n    replaceWith()\n    /* routeNameOrUrl, ...models, options */\n    {\n      return this.transitionTo(...arguments).method('replace');\n    }\n    /**\n      Generate a URL based on the supplied route name and optionally a model. The\n      URL is returned as a string that can be used for any purpose.\n         In this example, the URL for the `author.books` route for a given author\n      is copied to the clipboard.\n         ```app/templates/application.hbs\n      <CopyLink @author={{hash id=\"tomster\" name=\"Tomster\"}} />\n      ```\n         ```app/components/copy-link.js\n      import Component from '@glimmer/component';\n      import { inject as service } from '@ember/service';\n      import { action } from '@ember/object';\n         export default class CopyLinkComponent extends Component {\n        @service router;\n        @service clipboard;\n           @action\n        copyBooksURL() {\n          if (this.author) {\n            const url = this.router.urlFor('author.books', this.args.author);\n            this.clipboard.set(url);\n            // Clipboard now has /author/tomster/books\n          }\n        }\n      }\n      ```\n         Just like with `transitionTo` and `replaceWith`, `urlFor` can also handle\n      query parameters.\n         ```app/templates/application.hbs\n      <CopyLink @author={{hash id=\"tomster\" name=\"Tomster\"}} />\n      ```\n         ```app/components/copy-link.js\n      import Component from '@glimmer/component';\n      import { inject as service } from '@ember/service';\n      import { action } from '@ember/object';\n         export default class CopyLinkComponent extends Component {\n        @service router;\n        @service clipboard;\n           @action\n        copyOnlyEmberBooksURL() {\n          if (this.author) {\n            const url = this.router.urlFor('author.books', this.author, {\n              queryParams: { filter: 'emberjs' }\n            });\n            this.clipboard.set(url);\n            // Clipboard now has /author/tomster/books?filter=emberjs\n          }\n        }\n      }\n      ```\n          @method urlFor\n       @param {String} routeName the name of the route\n       @param {...Object} models the model(s) or identifier(s) to be used while\n         transitioning to the route.\n       @param {Object} [options] optional hash with a queryParams property\n         containing a mapping of query parameters\n       @return {String} the string representing the generated URL\n       @public\n     */\n\n\n    urlFor(routeName, ...args) {\n      return this._router.generate(routeName, ...args);\n    }\n    /**\n       Returns `true` if `routeName/models/queryParams` is the active route, where `models` and `queryParams` are optional.\n       See [model](api/ember/release/classes/Route/methods/model?anchor=model) and\n       [queryParams](/api/ember/3.7/classes/Route/properties/queryParams?anchor=queryParams) for more information about these arguments.\n          In the following example, `isActive` will return `true` if the current route is `/posts`.\n          ```app/components/posts.js\n       import Component from '@glimmer/component';\n       import { inject as service } from '@ember/service';\n          export default class extends Component {\n         @service router;\n            displayComments() {\n           return this.get('router').isActive('posts');\n         }\n       });\n       ```\n          The next example includes a dynamic segment, and will return `true` if the current route is `/posts/1`,\n       assuming the post has an id of 1:\n          ```app/components/posts.js\n       import Component from '@glimmer/component';\n       import { inject as service } from '@ember/service';\n          export default class extends Component {\n         @service router;\n            displayComments(post) {\n           return this.get('router').isActive('posts', post.id);\n         }\n       });\n       ```\n          Where `post.id` is the id of a specific post, which is represented in the route as /posts/[post.id].\n       If `post.id` is equal to 1, then isActive will return true if the current route is /posts/1, and false if the route is anything else.\n          @method isActive\n       @param {String} routeName the name of the route\n       @param {...Object} models the model(s) or identifier(s) to be used when determining the active route.\n       @param {Object} [options] optional hash with a queryParams property\n         containing a mapping of query parameters\n       @return {boolean} true if the provided routeName/models/queryParams are active\n       @public\n     */\n\n\n    isActive(...args) {\n      var {\n        routeName,\n        models,\n        queryParams\n      } = (0, _utils.extractRouteArgs)(args);\n      var routerMicrolib = this._router._routerMicrolib; // UNSAFE: casting `routeName as string` here encodes the existing\n      // assumption but may be wrong: `extractRouteArgs` correctly returns it as\n      // `string | undefined`. There may be bugs if `isActiveIntent` does\n      // not correctly account for `undefined` values for `routeName`. Spoilers:\n      // it *does not* account for this being `undefined`.\n\n      if (!routerMicrolib.isActiveIntent(routeName, models)) {\n        return false;\n      }\n\n      var hasQueryParams = Object.keys(queryParams).length > 0;\n\n      if (hasQueryParams) {\n        this._router._prepareQueryParams( // UNSAFE: casting `routeName as string` here encodes the existing\n        // assumption but may be wrong: `extractRouteArgs` correctly returns it\n        // as `string | undefined`. There may be bugs if `_prepareQueryParams`\n        // does not correctly account for `undefined` values for `routeName`.\n        //  Spoilers: under the hood this currently uses router.js APIs which\n        // *do not* account for this being `undefined`.\n        routeName, models, // UNSAFE: downstream consumers treat this as `QueryParam`, which the\n        // type system here *correctly* reports as incorrect, because it may be\n        // just an empty object.\n        queryParams, true\n        /* fromRouterService */\n        );\n\n        return (0, _utils.shallowEqual)(queryParams, routerMicrolib.state.queryParams);\n      }\n\n      return true;\n    }\n    /**\n       Takes a string URL and returns a `RouteInfo` for the leafmost route represented\n       by the URL. Returns `null` if the URL is not recognized. This method expects to\n       receive the actual URL as seen by the browser including the app's `rootURL`.\n          See [RouteInfo](/ember/release/classes/RouteInfo) for more info.\n          In the following example `recognize` is used to verify if a path belongs to our\n       application before transitioning to it.\n          ```\n       import Component from '@ember/component';\n       import { inject as service } from '@ember/service';\n          export default class extends Component {\n         @service router;\n         path = '/';\n            click() {\n           if (this.router.recognize(this.path)) {\n             this.router.transitionTo(this.path);\n           }\n         }\n       }\n       ```\n           @method recognize\n        @param {String} url\n        @public\n      */\n\n\n    recognize(url) {\n      (true && !(url.indexOf(this.rootURL) === 0) && (0, _debug.assert)(`You must pass a url that begins with the application's rootURL \"${this.rootURL}\"`, url.indexOf(this.rootURL) === 0));\n      var internalURL = cleanURL(url, this.rootURL);\n      return this._router._routerMicrolib.recognize(internalURL);\n    }\n    /**\n      Takes a string URL and returns a promise that resolves to a\n      `RouteInfoWithAttributes` for the leafmost route represented by the URL.\n      The promise rejects if the URL is not recognized or an unhandled exception\n      is encountered. This method expects to receive the actual URL as seen by\n      the browser including the app's `rootURL`.\n           @method recognizeAndLoad\n        @param {String} url\n        @public\n     */\n\n\n    recognizeAndLoad(url) {\n      (true && !(url.indexOf(this.rootURL) === 0) && (0, _debug.assert)(`You must pass a url that begins with the application's rootURL \"${this.rootURL}\"`, url.indexOf(this.rootURL) === 0));\n      var internalURL = cleanURL(url, this.rootURL);\n      return this._router._routerMicrolib.recognizeAndLoad(internalURL);\n    }\n\n  }\n\n  _exports.default = RouterService;\n  RouterService.reopen(_runtime.Evented, {\n    /**\n       Name of the current route.\n          This property represents the logical name of the route,\n       which is comma separated.\n       For the following router:\n          ```app/router.js\n       Router.map(function() {\n         this.route('about');\n         this.route('blog', function () {\n           this.route('post', { path: ':post_id' });\n         });\n       });\n       ```\n          It will return:\n          * `index` when you visit `/`\n       * `about` when you visit `/about`\n       * `blog.index` when you visit `/blog`\n       * `blog.post` when you visit `/blog/some-post-id`\n          @property currentRouteName\n       @type String\n       @public\n     */\n    currentRouteName: (0, _computed.readOnly)('_router.currentRouteName'),\n\n    /**\n       Current URL for the application.\n         This property represents the URL path for this route.\n      For the following router:\n          ```app/router.js\n       Router.map(function() {\n         this.route('about');\n         this.route('blog', function () {\n           this.route('post', { path: ':post_id' });\n         });\n       });\n       ```\n          It will return:\n          * `/` when you visit `/`\n       * `/about` when you visit `/about`\n       * `/blog` when you visit `/blog`\n       * `/blog/some-post-id` when you visit `/blog/some-post-id`\n          @property currentURL\n       @type String\n       @public\n     */\n    currentURL: (0, _computed.readOnly)('_router.currentURL'),\n\n    /**\n      The `location` property returns what implementation of the `location` API\n      your application is using, which determines what type of URL is being used.\n         See [Location](/ember/release/classes/Location) for more information.\n         To force a particular `location` API implementation to be used in your\n      application you can set a location type on your `config/environment`.\n      For example, to set the `history` type:\n         ```config/environment.js\n      'use strict';\n         module.exports = function(environment) {\n        let ENV = {\n          modulePrefix: 'router-service',\n          environment,\n          rootURL: '/',\n          locationType: 'history',\n          ...\n        }\n      }\n      ```\n         The following location types are available by default:\n      `auto`, `hash`, `history`, `none`.\n         See [HashLocation](/ember/release/classes/HashLocation).\n      See [HistoryLocation](/ember/release/classes/HistoryLocation).\n      See [NoneLocation](/ember/release/classes/NoneLocation).\n      See [AutoLocation](/ember/release/classes/AutoLocation).\n         @property location\n      @default 'hash'\n      @see {Location}\n      @public\n    */\n    location: (0, _computed.readOnly)('_router.location'),\n\n    /**\n      The `rootURL` property represents the URL of the root of\n      the application, '/' by default.\n      This prefix is assumed on all routes defined on this app.\n         If you change the `rootURL` in your environment configuration\n      like so:\n         ```config/environment.js\n      'use strict';\n         module.exports = function(environment) {\n        let ENV = {\n          modulePrefix: 'router-service',\n          environment,\n          rootURL: '/my-root',\n        …\n        }\n      ]\n      ```\n         This property will return `/my-root`.\n         @property rootURL\n      @default '/'\n      @public\n    */\n    rootURL: (0, _computed.readOnly)('_router.rootURL'),\n\n    /**\n      The `currentRoute` property contains metadata about the current leaf route.\n      It returns a `RouteInfo` object that has information like the route name,\n      params, query params and more.\n         See [RouteInfo](/ember/release/classes/RouteInfo) for more info.\n         This property is guaranteed to change whenever a route transition\n      happens (even when that transition only changes parameters\n      and doesn't change the active route).\n         Usage example:\n      ```app/components/header.js\n        import Component from '@glimmer/component';\n        import { inject as service } from '@ember/service';\n        import { notEmpty } from '@ember/object/computed';\n           export default class extends Component {\n          @service router;\n             @notEmpty('router.currentRoute.child') isChildRoute;\n        });\n      ```\n          @property currentRoute\n       @type RouteInfo\n       @public\n     */\n    currentRoute: (0, _computed.readOnly)('_router.currentRoute')\n  });\n});","define(\"@ember/-internals/routing/lib/services/routing\", [\"exports\", \"@ember/object/computed\", \"@ember/polyfills\", \"@ember/service\"], function (_exports, _computed, _polyfills, _service) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n  @module ember\n  */\n\n  /**\n    The Routing service is used by LinkComponent, and provides facilities for\n    the component/view layer to interact with the router.\n  \n    This is a private service for internal usage only. For public usage,\n    refer to the `Router` service.\n  \n    @private\n    @class RoutingService\n  */\n  class RoutingService extends _service.default {\n    hasRoute(routeName) {\n      return this.router.hasRoute(routeName);\n    }\n\n    transitionTo(routeName, models, queryParams, shouldReplace) {\n      var transition = this.router._doTransition(routeName, models, queryParams);\n\n      if (shouldReplace) {\n        transition.method('replace');\n      }\n\n      return transition;\n    }\n\n    normalizeQueryParams(routeName, models, queryParams) {\n      this.router._prepareQueryParams(routeName, models, queryParams);\n    }\n\n    generateURL(routeName, models, queryParams) {\n      var router = this.router; // return early when the router microlib is not present, which is the case for {{link-to}} in integration tests\n\n      if (!router._routerMicrolib) {\n        return;\n      }\n\n      var visibleQueryParams = {};\n\n      if (queryParams) {\n        (0, _polyfills.assign)(visibleQueryParams, queryParams);\n        this.normalizeQueryParams(routeName, models, visibleQueryParams);\n      }\n\n      return router.generate(routeName, ...models, {\n        queryParams: visibleQueryParams\n      });\n    }\n\n    isActiveForRoute(contexts, queryParams, routeName, routerState, isCurrentWhenSpecified) {\n      var handlers = this.router._routerMicrolib.recognizer.handlersFor(routeName);\n\n      var leafName = handlers[handlers.length - 1].handler;\n      var maximumContexts = numberOfContextsAcceptedByHandler(routeName, handlers); // NOTE: any ugliness in the calculation of activeness is largely\n      // due to the fact that we support automatic normalizing of\n      // `resource` -> `resource.index`, even though there might be\n      // dynamic segments / query params defined on `resource.index`\n      // which complicates (and makes somewhat ambiguous) the calculation\n      // of activeness for links that link to `resource` instead of\n      // directly to `resource.index`.\n      // if we don't have enough contexts revert back to full route name\n      // this is because the leaf route will use one of the contexts\n\n      if (contexts.length > maximumContexts) {\n        routeName = leafName;\n      }\n\n      return routerState.isActiveIntent(routeName, contexts, queryParams, !isCurrentWhenSpecified);\n    }\n\n  }\n\n  _exports.default = RoutingService;\n  RoutingService.reopen({\n    targetState: (0, _computed.readOnly)('router.targetState'),\n    currentState: (0, _computed.readOnly)('router.currentState'),\n    currentRouteName: (0, _computed.readOnly)('router.currentRouteName'),\n    currentPath: (0, _computed.readOnly)('router.currentPath')\n  });\n\n  function numberOfContextsAcceptedByHandler(handlerName, handlerInfos) {\n    var req = 0;\n\n    for (var i = 0; i < handlerInfos.length; i++) {\n      req += handlerInfos[i].names.length;\n\n      if (handlerInfos[i].handler === handlerName) {\n        break;\n      }\n    }\n\n    return req;\n  }\n});","define(\"@ember/-internals/routing/lib/system/cache\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n    A two-tiered cache with support for fallback values when doing lookups.\n    Uses \"buckets\" and then \"keys\" to cache values.\n  \n    @private\n    @class BucketCache\n  */\n  class BucketCache {\n    constructor() {\n      this.cache = new Map();\n    }\n\n    has(bucketKey) {\n      return this.cache.has(bucketKey);\n    }\n\n    stash(bucketKey, key, value) {\n      var bucket = this.cache.get(bucketKey);\n\n      if (bucket === undefined) {\n        bucket = new Map();\n        this.cache.set(bucketKey, bucket);\n      }\n\n      bucket.set(key, value);\n    }\n\n    lookup(bucketKey, prop, defaultValue) {\n      if (!this.has(bucketKey)) {\n        return defaultValue;\n      }\n\n      var bucket = this.cache.get(bucketKey);\n\n      if (bucket.has(prop)) {\n        return bucket.get(prop);\n      } else {\n        return defaultValue;\n      }\n    }\n\n  }\n\n  _exports.default = BucketCache;\n});","define(\"@ember/-internals/routing/lib/system/controller_for\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = controllerFor;\n\n  /**\n  @module ember\n  */\n\n  /**\n    Finds a controller instance.\n  \n    @for Ember\n    @method controllerFor\n    @private\n  */\n  function controllerFor(container, controllerName, lookupOptions) {\n    return container.lookup(`controller:${controllerName}`, lookupOptions);\n  }\n});","define(\"@ember/-internals/routing/lib/system/dsl\", [\"exports\", \"@ember/debug\", \"@ember/polyfills\"], function (_exports, _debug, _polyfills) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n  var uuid = 0;\n\n  function isCallback(value) {\n    return typeof value === 'function';\n  }\n\n  function isOptions(value) {\n    return value !== null && typeof value === 'object';\n  }\n\n  class DSLImpl {\n    constructor(name = null, options) {\n      this.explicitIndex = false;\n      this.parent = name;\n      this.enableLoadingSubstates = Boolean(options && options.enableLoadingSubstates);\n      this.matches = [];\n      this.options = options;\n    }\n\n    route(name, _options, _callback) {\n      var options;\n      var callback = null;\n      var dummyErrorRoute = `/_unused_dummy_error_path_route_${name}/:error`;\n\n      if (isCallback(_options)) {\n        (true && !(arguments.length === 2) && (0, _debug.assert)('Unexpected arguments', arguments.length === 2));\n        options = {};\n        callback = _options;\n      } else if (isCallback(_callback)) {\n        (true && !(arguments.length === 3) && (0, _debug.assert)('Unexpected arguments', arguments.length === 3));\n        (true && !(isOptions(_options)) && (0, _debug.assert)('Unexpected arguments', isOptions(_options)));\n        options = _options;\n        callback = _callback;\n      } else {\n        options = _options || {};\n      }\n\n      (true && !((() => {\n        if (options.overrideNameAssertion === true) {\n          return true;\n        }\n\n        return ['basic', 'application'].indexOf(name) === -1;\n      })()) && (0, _debug.assert)(`'${name}' cannot be used as a route name.`, (() => {\n        if (options.overrideNameAssertion === true) {\n          return true;\n        }\n\n        return ['basic', 'application'].indexOf(name) === -1;\n      })()));\n      (true && !(name.indexOf(':') === -1) && (0, _debug.assert)(`'${name}' is not a valid route name. It cannot contain a ':'. You may want to use the 'path' option instead.`, name.indexOf(':') === -1));\n\n      if (this.enableLoadingSubstates) {\n        createRoute(this, `${name}_loading`, {\n          resetNamespace: options.resetNamespace\n        });\n        createRoute(this, `${name}_error`, {\n          resetNamespace: options.resetNamespace,\n          path: dummyErrorRoute\n        });\n      }\n\n      if (callback) {\n        var fullName = getFullName(this, name, options.resetNamespace);\n        var dsl = new DSLImpl(fullName, this.options);\n        createRoute(dsl, 'loading');\n        createRoute(dsl, 'error', {\n          path: dummyErrorRoute\n        });\n        callback.call(dsl);\n        createRoute(this, name, options, dsl.generate());\n      } else {\n        createRoute(this, name, options);\n      }\n    }\n    /* eslint-enable no-dupe-class-members */\n\n\n    push(url, name, callback, serialize) {\n      var parts = name.split('.');\n\n      if (this.options.engineInfo) {\n        var localFullName = name.slice(this.options.engineInfo.fullName.length + 1);\n        var routeInfo = (0, _polyfills.assign)({\n          localFullName\n        }, this.options.engineInfo);\n\n        if (serialize) {\n          routeInfo.serializeMethod = serialize;\n        }\n\n        this.options.addRouteForEngine(name, routeInfo);\n      } else if (serialize) {\n        throw new Error(`Defining a route serializer on route '${name}' outside an Engine is not allowed.`);\n      }\n\n      if (url === '' || url === '/' || parts[parts.length - 1] === 'index') {\n        this.explicitIndex = true;\n      }\n\n      this.matches.push(url, name, callback);\n    }\n\n    generate() {\n      var dslMatches = this.matches;\n\n      if (!this.explicitIndex) {\n        this.route('index', {\n          path: '/'\n        });\n      }\n\n      return match => {\n        for (var i = 0; i < dslMatches.length; i += 3) {\n          match(dslMatches[i]).to(dslMatches[i + 1], dslMatches[i + 2]);\n        }\n      };\n    }\n\n    mount(_name, options = {}) {\n      var engineRouteMap = this.options.resolveRouteMap(_name);\n      var name = _name;\n\n      if (options.as) {\n        name = options.as;\n      }\n\n      var fullName = getFullName(this, name, options.resetNamespace);\n      var engineInfo = {\n        name: _name,\n        instanceId: uuid++,\n        mountPoint: fullName,\n        fullName\n      };\n      var path = options.path;\n\n      if (typeof path !== 'string') {\n        path = `/${name}`;\n      }\n\n      var callback;\n      var dummyErrorRoute = `/_unused_dummy_error_path_route_${name}/:error`;\n\n      if (engineRouteMap) {\n        var shouldResetEngineInfo = false;\n        var oldEngineInfo = this.options.engineInfo;\n\n        if (oldEngineInfo) {\n          shouldResetEngineInfo = true;\n          this.options.engineInfo = engineInfo;\n        }\n\n        var optionsForChild = (0, _polyfills.assign)({\n          engineInfo\n        }, this.options);\n        var childDSL = new DSLImpl(fullName, optionsForChild);\n        createRoute(childDSL, 'loading');\n        createRoute(childDSL, 'error', {\n          path: dummyErrorRoute\n        });\n        engineRouteMap.class.call(childDSL);\n        callback = childDSL.generate();\n\n        if (shouldResetEngineInfo) {\n          this.options.engineInfo = oldEngineInfo;\n        }\n      }\n\n      var localFullName = 'application';\n      var routeInfo = (0, _polyfills.assign)({\n        localFullName\n      }, engineInfo);\n\n      if (this.enableLoadingSubstates) {\n        // These values are important to register the loading routes under their\n        // proper names for the Router and within the Engine's registry.\n        var substateName = `${name}_loading`;\n        var _localFullName = `application_loading`;\n\n        var _routeInfo = (0, _polyfills.assign)({\n          localFullName: _localFullName\n        }, engineInfo);\n\n        createRoute(this, substateName, {\n          resetNamespace: options.resetNamespace\n        });\n        this.options.addRouteForEngine(substateName, _routeInfo);\n        substateName = `${name}_error`;\n        _localFullName = `application_error`;\n        _routeInfo = (0, _polyfills.assign)({\n          localFullName: _localFullName\n        }, engineInfo);\n        createRoute(this, substateName, {\n          resetNamespace: options.resetNamespace,\n          path: dummyErrorRoute\n        });\n        this.options.addRouteForEngine(substateName, _routeInfo);\n      }\n\n      this.options.addRouteForEngine(fullName, routeInfo);\n      this.push(path, fullName, callback);\n    }\n\n  }\n\n  _exports.default = DSLImpl;\n\n  function canNest(dsl) {\n    return dsl.parent !== 'application';\n  }\n\n  function getFullName(dsl, name, resetNamespace) {\n    if (canNest(dsl) && resetNamespace !== true) {\n      return `${dsl.parent}.${name}`;\n    } else {\n      return name;\n    }\n  }\n\n  function createRoute(dsl, name, options = {}, callback) {\n    var fullName = getFullName(dsl, name, options.resetNamespace);\n\n    if (typeof options.path !== 'string') {\n      options.path = `/${name}`;\n    }\n\n    dsl.push(options.path, fullName, callback, options.serialize);\n  }\n});","define(\"@ember/-internals/routing/lib/system/engines\", [], function () {\n  \"use strict\";\n});","define(\"@ember/-internals/routing/lib/system/generate_controller\", [\"exports\", \"@ember/-internals/metal\", \"@ember/debug\"], function (_exports, _metal, _debug) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.generateControllerFactory = generateControllerFactory;\n  _exports.default = generateController;\n\n  /**\n  @module ember\n  */\n\n  /**\n    Generates a controller factory\n  \n    @for Ember\n    @method generateControllerFactory\n    @private\n  */\n  function generateControllerFactory(owner, controllerName) {\n    var Factory = owner.factoryFor('controller:basic').class;\n    Factory = Factory.extend({\n      toString() {\n        return `(generated ${controllerName} controller)`;\n      }\n\n    });\n    var fullName = `controller:${controllerName}`;\n    owner.register(fullName, Factory);\n    return owner.factoryFor(fullName);\n  }\n  /**\n    Generates and instantiates a controller extending from `controller:basic`\n    if present, or `Controller` if not.\n  \n    @for Ember\n    @method generateController\n    @private\n    @since 1.3.0\n  */\n\n\n  function generateController(owner, controllerName) {\n    generateControllerFactory(owner, controllerName);\n    var fullName = `controller:${controllerName}`;\n    var instance = owner.lookup(fullName);\n\n    if (true\n    /* DEBUG */\n    ) {\n      if ((0, _metal.get)(instance, 'namespace.LOG_ACTIVE_GENERATION')) {\n        (0, _debug.info)(`generated -> ${fullName}`, {\n          fullName\n        });\n      }\n    }\n\n    return instance;\n  }\n});","define(\"@ember/-internals/routing/lib/system/query_params\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  class QueryParams {\n    constructor(values = null) {\n      this.isQueryParams = true;\n      this.values = values;\n    }\n\n  }\n\n  _exports.default = QueryParams;\n});","define(\"@ember/-internals/routing/lib/system/route-info\", [], function () {\n  \"use strict\";\n  /**\n    A `RouteInfoWithAttributes` is an object that contains\n    metadata, including the resolved value from the routes\n    `model` hook. Like `RouteInfo`, a `RouteInfoWithAttributes`\n    represents a specific route within a Transition.\n    It is read-only and internally immutable. It is also not\n    observable, because a Transition instance is never\n    changed after creation.\n  \n    @class RouteInfoWithAttributes\n    @public\n  */\n\n  /**\n    The dot-separated, fully-qualified name of the\n    route, like \"people.index\".\n    @property {String} name\n    @public\n  */\n\n  /**\n    The final segment of the fully-qualified name of\n    the route, like \"index\"\n    @property {String} localName\n    @public\n  */\n\n  /**\n    The values of the route's parameters. These are the\n    same params that are received as arguments to the\n    route's model hook. Contains only the parameters\n    valid for this route, if any (params for parent or\n    child routes are not merged).\n    @property {Object} params\n    @public\n  */\n\n  /**\n    The ordered list of the names of the params\n    required for this route. It will contain the same\n    strings as `Object.keys(params)`, but here the order\n    is significant. This allows users to correctly pass\n    params into routes programmatically.\n    @property {Array} paramNames\n    @public\n  */\n\n  /**\n    The values of any queryParams on this route.\n    @property {Object} queryParams\n    @public\n  */\n\n  /**\n    This is the resolved return value from the\n    route's model hook.\n    @property {Object|Array|String} attributes\n    @public\n  */\n\n  /**\n    Will contain the result `Route#buildRouteInfoMetadata`\n    for the corresponding Route.\n    @property {Any} metadata\n    @public\n  */\n\n  /**\n    A reference to the parent route's RouteInfo.\n    This can be used to traverse upward to the topmost\n    `RouteInfo`.\n    @property {RouteInfo|null} parent\n    @public\n  */\n\n  /**\n    A reference to the child route's RouteInfo.\n    This can be used to traverse downward to the\n    leafmost `RouteInfo`.\n    @property {RouteInfo|null} child\n    @public\n  */\n\n  /**\n    Allows you to traverse through the linked list\n    of `RouteInfo`s from the topmost to leafmost.\n    Returns the first `RouteInfo` in the linked list\n    for which the callback returns true.\n  \n      This method is similar to the `find()` method\n      defined in ECMAScript 2015.\n  \n      The callback method you provide should have the\n      following signature (all parameters are optional):\n  \n      ```javascript\n      function(item, index, array);\n      ```\n  \n      - `item` is the current item in the iteration.\n      - `index` is the current index in the iteration.\n      - `array` is the array itself.\n  \n      It should return the `true` to include the item in\n      the results, `false` otherwise.\n  \n      Note that in addition to a callback, you can also\n      pass an optional target object that will be set as\n      `this` on the context.\n  \n    @method find\n    @param {Function} callback the callback to execute\n    @param {Object} [target*] optional target to use\n    @returns {Object} Found item or undefined\n    @public\n  */\n\n  /**\n    A RouteInfo is an object that contains metadata\n    about a specific route within a Transition. It is\n    read-only and internally immutable. It is also not\n    observable, because a Transition instance is never\n    changed after creation.\n  \n    @class RouteInfo\n    @public\n  */\n\n  /**\n    The dot-separated, fully-qualified name of the\n    route, like \"people.index\".\n    @property {String} name\n    @public\n  */\n\n  /**\n    The final segment of the fully-qualified name of\n    the route, like \"index\"\n    @property {String} localName\n    @public\n  */\n\n  /**\n    The values of the route's parameters. These are the\n    same params that are received as arguments to the\n    route's `model` hook. Contains only the parameters\n    valid for this route, if any (params for parent or\n    child routes are not merged).\n    @property {Object} params\n    @public\n  */\n\n  /**\n    The ordered list of the names of the params\n    required for this route. It will contain the same\n    strings as Object.keys(params), but here the order\n    is significant. This allows users to correctly pass\n    params into routes programmatically.\n    @property {Array} paramNames\n    @public\n  */\n\n  /**\n    The values of any queryParams on this route.\n    @property {Object} queryParams\n    @public\n  */\n\n  /**\n    A reference to the parent route's `RouteInfo`.\n    This can be used to traverse upward to the topmost\n    `RouteInfo`.\n    @property {RouteInfo|null} parent\n    @public\n  */\n\n  /**\n    A reference to the child route's `RouteInfo`.\n    This can be used to traverse downward to the\n    leafmost `RouteInfo`.\n    @property {RouteInfo|null} child\n    @public\n  */\n\n  /**\n    Allows you to traverse through the linked list\n    of `RouteInfo`s from the topmost to leafmost.\n    Returns the first `RouteInfo` in the linked list\n    for which the callback returns true.\n  \n      This method is similar to the `find()` method\n      defined in ECMAScript 2015.\n  \n      The callback method you provide should have the\n      following signature (all parameters are optional):\n  \n      ```javascript\n      function(item, index, array);\n      ```\n  \n      - `item` is the current item in the iteration.\n      - `index` is the current index in the iteration.\n      - `array` is the array itself.\n  \n      It should return the `true` to include the item in\n      the results, `false` otherwise.\n  \n      Note that in addition to a callback, you can also\n      pass an optional target object that will be set as\n      `this` on the context.\n  \n    @method find\n    @param {Function} callback the callback to execute\n    @param {Object} [target*] optional target to use\n    @returns {Object} Found item or undefined\n    @public\n  */\n});","define(\"@ember/-internals/routing/lib/system/route\", [\"exports\", \"@ember/polyfills\", \"@ember/-internals/metal\", \"@ember/-internals/owner\", \"@ember/-internals/runtime\", \"@ember/-internals/utils\", \"@ember/debug\", \"@ember/deprecated-features\", \"@ember/object/compat\", \"@ember/runloop\", \"@ember/string\", \"router_js\", \"@ember/-internals/routing/lib/utils\", \"@ember/-internals/routing/lib/system/generate_controller\"], function (_exports, _polyfills, _metal, _owner, _runtime, _utils, _debug, _deprecatedFeatures, _compat, _runloop, _string, _router_js, _utils2, _generate_controller) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.defaultSerialize = defaultSerialize;\n  _exports.hasDefaultSerialize = hasDefaultSerialize;\n  _exports.default = _exports.ROUTER_EVENT_DEPRECATIONS = _exports.ROUTE_CONNECTIONS = void 0;\n  var ROUTE_CONNECTIONS = new WeakMap();\n  _exports.ROUTE_CONNECTIONS = ROUTE_CONNECTIONS;\n\n  function defaultSerialize(model, params) {\n    if (params.length < 1 || !model) {\n      return;\n    }\n\n    var object = {};\n\n    if (params.length === 1) {\n      var [name] = params;\n\n      if (name in model) {\n        object[name] = (0, _metal.get)(model, name);\n      } else if (/_id$/.test(name)) {\n        object[name] = (0, _metal.get)(model, 'id');\n      }\n    } else {\n      object = (0, _metal.getProperties)(model, params);\n    }\n\n    return object;\n  }\n\n  function hasDefaultSerialize(route) {\n    return route.serialize === defaultSerialize;\n  }\n  /**\n  @module @ember/routing\n  */\n\n  /**\n    The `Route` class is used to define individual routes. Refer to\n    the [routing guide](https://guides.emberjs.com/release/routing/) for documentation.\n  \n    @class Route\n    @extends EmberObject\n    @uses ActionHandler\n    @uses Evented\n    @since 1.0.0\n    @public\n  */\n\n\n  class Route extends _runtime.Object {\n    constructor() {\n      super(...arguments);\n      this.context = {};\n    }\n    /**\n      The name of the route, dot-delimited.\n         For example, a route found at `app/routes/posts/post.js` will have\n      a `routeName` of `posts.post`.\n         @property routeName\n      @for Route\n      @type String\n      @since 1.0.0\n      @public\n    */\n\n    /**\n      The name of the route, dot-delimited, including the engine prefix\n      if applicable.\n         For example, a route found at `addon/routes/posts/post.js` within an\n      engine named `admin` will have a `fullRouteName` of `admin.posts.post`.\n         @property fullRouteName\n      @for Route\n      @type String\n      @since 2.10.0\n      @public\n    */\n\n    /**\n      Sets the name for this route, including a fully resolved name for routes\n      inside engines.\n         @private\n      @method _setRouteName\n      @param {String} name\n    */\n\n\n    _setRouteName(name) {\n      this.routeName = name;\n      this.fullRouteName = getEngineRouteName((0, _owner.getOwner)(this), name);\n    }\n    /**\n      @private\n         @method _stashNames\n    */\n\n\n    _stashNames(routeInfo, dynamicParent) {\n      if (this._names) {\n        return;\n      }\n\n      var names = this._names = routeInfo['_names'];\n\n      if (!names.length) {\n        routeInfo = dynamicParent;\n        names = routeInfo && routeInfo['_names'] || [];\n      }\n\n      var qps = (0, _metal.get)(this, '_qp.qps');\n      var namePaths = new Array(names.length);\n\n      for (var a = 0; a < names.length; ++a) {\n        namePaths[a] = `${routeInfo.name}.${names[a]}`;\n      }\n\n      for (var i = 0; i < qps.length; ++i) {\n        var qp = qps[i];\n\n        if (qp.scope === 'model') {\n          qp.parts = namePaths;\n        }\n      }\n    }\n    /**\n      @private\n         @property _activeQPChanged\n    */\n\n\n    _activeQPChanged(qp, value) {\n      this._router._activeQPChanged(qp.scopedPropertyName, value);\n    }\n    /**\n      @private\n      @method _updatingQPChanged\n    */\n\n\n    _updatingQPChanged(qp) {\n      this._router._updatingQPChanged(qp.urlKey);\n    }\n    /**\n      Returns a hash containing the parameters of an ancestor route.\n         You may notice that `this.paramsFor` sometimes works when referring to a\n      child route, but this behavior should not be relied upon as only ancestor\n      routes are certain to be loaded in time.\n         Example\n         ```app/router.js\n      // ...\n         Router.map(function() {\n        this.route('member', { path: ':name' }, function() {\n          this.route('interest', { path: ':interest' });\n        });\n      });\n      ```\n         ```app/routes/member.js\n      import Route from '@ember/routing/route';\n         export default class MemberRoute extends Route {\n        queryParams = {\n          memberQp: { refreshModel: true }\n        }\n      }\n      ```\n         ```app/routes/member/interest.js\n      import Route from '@ember/routing/route';\n         export default class MemberInterestRoute Route {\n        queryParams = {\n          interestQp: { refreshModel: true }\n        }\n           model() {\n          return this.paramsFor('member');\n        }\n      }\n      ```\n         If we visit `/turing/maths?memberQp=member&interestQp=interest` the model for\n      the `member.interest` route is a hash with:\n         * `name`: `turing`\n      * `memberQp`: `member`\n         @method paramsFor\n      @param {String} name\n      @return {Object} hash containing the parameters of the route `name`\n      @since 1.4.0\n      @public\n    */\n\n\n    paramsFor(name) {\n      var route = (0, _owner.getOwner)(this).lookup(`route:${name}`);\n\n      if (route === undefined) {\n        return {};\n      }\n\n      var transition = this._router._routerMicrolib.activeTransition;\n      var state = transition ? transition[_router_js.STATE_SYMBOL] : this._router._routerMicrolib.state;\n      var fullName = route.fullRouteName;\n      var params = (0, _polyfills.assign)({}, state.params[fullName]);\n      var queryParams = getQueryParamsFor(route, state);\n      return Object.keys(queryParams).reduce((params, key) => {\n        (true && !(!params[key]) && (0, _debug.assert)(`The route '${this.routeName}' has both a dynamic segment and query param with name '${key}'. Please rename one to avoid collisions.`, !params[key]));\n        params[key] = queryParams[key];\n        return params;\n      }, params);\n    }\n    /**\n      Serializes the query parameter key\n         @method serializeQueryParamKey\n      @param {String} controllerPropertyName\n      @private\n    */\n\n\n    serializeQueryParamKey(controllerPropertyName) {\n      return controllerPropertyName;\n    }\n    /**\n      Serializes value of the query parameter based on defaultValueType\n         @method serializeQueryParam\n      @param {Object} value\n      @param {String} urlKey\n      @param {String} defaultValueType\n      @private\n    */\n\n\n    serializeQueryParam(value, _urlKey, defaultValueType) {\n      // urlKey isn't used here, but anyone overriding\n      // can use it to provide serialization specific\n      // to a certain query param.\n      return this._router._serializeQueryParam(value, defaultValueType);\n    }\n    /**\n      Deserializes value of the query parameter based on defaultValueType\n         @method deserializeQueryParam\n      @param {Object} value\n      @param {String} urlKey\n      @param {String} defaultValueType\n      @private\n    */\n\n\n    deserializeQueryParam(value, _urlKey, defaultValueType) {\n      // urlKey isn't used here, but anyone overriding\n      // can use it to provide deserialization specific\n      // to a certain query param.\n      return this._router._deserializeQueryParam(value, defaultValueType);\n    }\n    /**\n      @private\n         @property _optionsForQueryParam\n    */\n\n\n    _optionsForQueryParam(qp) {\n      return (0, _metal.get)(this, `queryParams.${qp.urlKey}`) || (0, _metal.get)(this, `queryParams.${qp.prop}`) || {};\n    }\n    /**\n      A hook you can use to reset controller values either when the model\n      changes or the route is exiting.\n         ```app/routes/articles.js\n      import Route from '@ember/routing/route';\n         export default class ArticlesRoute extends Route {\n        resetController(controller, isExiting, transition) {\n          if (isExiting && transition.targetName !== 'error') {\n            controller.set('page', 1);\n          }\n        }\n      }\n      ```\n         @method resetController\n      @param {Controller} controller instance\n      @param {Boolean} isExiting\n      @param {Object} transition\n      @since 1.7.0\n      @public\n    */\n\n\n    resetController(_controller, _isExiting, _transition) {\n      return this;\n    }\n    /**\n      @private\n         @method exit\n    */\n\n\n    exit() {\n      this.deactivate();\n      this.trigger('deactivate');\n      this.teardownViews();\n    }\n    /**\n      @private\n         @method _internalReset\n      @since 3.6.0\n    */\n\n\n    _internalReset(isExiting, transition) {\n      var controller = this.controller;\n      controller['_qpDelegate'] = (0, _metal.get)(this, '_qp.states.inactive');\n      this.resetController(controller, isExiting, transition);\n    }\n    /**\n      @private\n         @method enter\n    */\n\n\n    enter() {\n      ROUTE_CONNECTIONS.set(this, []);\n      this.activate();\n      this.trigger('activate');\n    }\n    /**\n      The `willTransition` action is fired at the beginning of any\n      attempted transition with a `Transition` object as the sole\n      argument. This action can be used for aborting, redirecting,\n      or decorating the transition from the currently active routes.\n         A good example is preventing navigation when a form is\n      half-filled out:\n         ```app/routes/contact-form.js\n      import Route from '@ember/routing/route';\n      import { action } from '@ember/object';\n         export default class ContactFormRoute extends Route {\n        @action\n        willTransition(transition) {\n          if (this.controller.get('userHasEnteredData')) {\n            this.controller.displayNavigationConfirm();\n            transition.abort();\n          }\n        }\n      }\n      ```\n         You can also redirect elsewhere by calling\n      `this.transitionTo('elsewhere')` from within `willTransition`.\n      Note that `willTransition` will not be fired for the\n      redirecting `transitionTo`, since `willTransition` doesn't\n      fire when there is already a transition underway. If you want\n      subsequent `willTransition` actions to fire for the redirecting\n      transition, you must first explicitly call\n      `transition.abort()`.\n         To allow the `willTransition` event to continue bubbling to the parent\n      route, use `return true;`. When the `willTransition` method has a\n      return value of `true` then the parent route's `willTransition` method\n      will be fired, enabling \"bubbling\" behavior for the event.\n         @event willTransition\n      @param {Transition} transition\n      @since 1.0.0\n      @public\n    */\n\n    /**\n      The `didTransition` action is fired after a transition has\n      successfully been completed. This occurs after the normal model\n      hooks (`beforeModel`, `model`, `afterModel`, `setupController`)\n      have resolved. The `didTransition` action has no arguments,\n      however, it can be useful for tracking page views or resetting\n      state on the controller.\n         ```app/routes/login.js\n      import Route from '@ember/routing/route';\n      import { action } from '@ember/object';\n         export default class LoginRoute extends Route {\n        @action\n        didTransition() {\n          this.controller.get('errors.base').clear();\n          return true; // Bubble the didTransition event\n        }\n      }\n      ```\n         @event didTransition\n      @since 1.2.0\n      @public\n    */\n\n    /**\n      The `loading` action is fired on the route when a route's `model`\n      hook returns a promise that is not already resolved. The current\n      `Transition` object is the first parameter and the route that\n      triggered the loading event is the second parameter.\n         ```app/routes/application.js\n      import Route from '@ember/routing/route';\n      import { action } from '@ember/object';\n         export default class ApplicationRoute extends Route {\n        @action\n        loading(transition, route) {\n          let controller = this.controllerFor('foo');\n          controller.set('currentlyLoading', true);\n             transition.finally(function() {\n            controller.set('currentlyLoading', false);\n          });\n        }\n      }\n      ```\n         @event loading\n      @param {Transition} transition\n      @param {Route} route The route that triggered the loading event\n      @since 1.2.0\n      @public\n    */\n\n    /**\n      When attempting to transition into a route, any of the hooks\n      may return a promise that rejects, at which point an `error`\n      action will be fired on the partially-entered routes, allowing\n      for per-route error handling logic, or shared error handling\n      logic defined on a parent route.\n         Here is an example of an error handler that will be invoked\n      for rejected promises from the various hooks on the route,\n      as well as any unhandled errors from child routes:\n         ```app/routes/admin.js\n      import { reject } from 'rsvp';\n      import Route from '@ember/routing/route';\n      import { action } from '@ember/object';\n         export default class AdminRoute extends Route {\n        beforeModel() {\n          return reject('bad things!');\n        }\n           @action\n        error(error, transition) {\n          // Assuming we got here due to the error in `beforeModel`,\n          // we can expect that error === \"bad things!\",\n          // but a promise model rejecting would also\n          // call this hook, as would any errors encountered\n          // in `afterModel`.\n             // The `error` hook is also provided the failed\n          // `transition`, which can be stored and later\n          // `.retry()`d if desired.\n             this.transitionTo('login');\n        }\n      }\n      ```\n         `error` actions that bubble up all the way to `ApplicationRoute`\n      will fire a default error handler that logs the error. You can\n      specify your own global default error handler by overriding the\n      `error` handler on `ApplicationRoute`:\n         ```app/routes/application.js\n      import Route from '@ember/routing/route';\n      import { action } from '@ember/object';\n         export default class ApplicationRoute extends Route {\n        @action\n        error(error, transition) {\n          this.controllerFor('banner').displayError(error.message);\n        }\n      }\n      ```\n      @event error\n      @param {Error} error\n      @param {Transition} transition\n      @since 1.0.0\n      @public\n    */\n\n    /**\n      This event is triggered when the router enters the route. It is\n      not executed when the model for the route changes.\n         ```app/routes/application.js\n      import { on } from '@ember/object/evented';\n      import Route from '@ember/routing/route';\n         export default Route.extend({\n        collectAnalytics: on('activate', function(){\n          collectAnalytics();\n        })\n      });\n      ```\n         @event activate\n      @since 1.9.0\n      @public\n    */\n\n    /**\n      This event is triggered when the router completely exits this\n      route. It is not executed when the model for the route changes.\n         ```app/routes/index.js\n      import { on } from '@ember/object/evented';\n      import Route from '@ember/routing/route';\n         export default Route.extend({\n        trackPageLeaveAnalytics: on('deactivate', function(){\n          trackPageLeaveAnalytics();\n        })\n      });\n      ```\n         @event deactivate\n      @since 1.9.0\n      @public\n    */\n\n    /**\n      This hook is executed when the router completely exits this route. It is\n      not executed when the model for the route changes.\n         @method deactivate\n      @since 1.0.0\n      @public\n    */\n\n\n    deactivate() {}\n    /**\n      This hook is executed when the router enters the route. It is not executed\n      when the model for the route changes.\n         @method activate\n      @since 1.0.0\n      @public\n    */\n\n\n    activate() {}\n    /**\n      Transition the application into another route. The route may\n      be either a single route or route path:\n         ```javascript\n      this.transitionTo('blogPosts');\n      this.transitionTo('blogPosts.recentEntries');\n      ```\n         Optionally supply a model for the route in question. The model\n      will be serialized into the URL using the `serialize` hook of\n      the route:\n         ```javascript\n      this.transitionTo('blogPost', aPost);\n      ```\n         If a literal is passed (such as a number or a string), it will\n      be treated as an identifier instead. In this case, the `model`\n      hook of the route will be triggered:\n         ```javascript\n      this.transitionTo('blogPost', 1);\n      ```\n         Multiple models will be applied last to first recursively up the\n      route tree.\n         ```app/routes.js\n      // ...\n         Router.map(function() {\n        this.route('blogPost', { path:':blogPostId' }, function() {\n          this.route('blogComment', { path: ':blogCommentId' });\n        });\n      });\n         export default Router;\n      ```\n         ```javascript\n      this.transitionTo('blogComment', aPost, aComment);\n      this.transitionTo('blogComment', 1, 13);\n      ```\n         It is also possible to pass a URL (a string that starts with a\n      `/`).\n         ```javascript\n      this.transitionTo('/');\n      this.transitionTo('/blog/post/1/comment/13');\n      this.transitionTo('/blog/posts?sort=title');\n      ```\n         An options hash with a `queryParams` property may be provided as\n      the final argument to add query parameters to the destination URL.\n         ```javascript\n      this.transitionTo('blogPost', 1, {\n        queryParams: { showComments: 'true' }\n      });\n         // if you just want to transition the query parameters without changing the route\n      this.transitionTo({ queryParams: { sort: 'date' } });\n      ```\n         See also [replaceWith](#method_replaceWith).\n         Simple Transition Example\n         ```app/routes.js\n      // ...\n         Router.map(function() {\n        this.route('index');\n        this.route('secret');\n        this.route('fourOhFour', { path: '*:' });\n      });\n         export default Router;\n      ```\n         ```app/routes/index.js\n      import Route from '@ember/routing/route';\n      import { action } from '@ember/object';\n         export default class IndexRoute extends Route {\n        @action\n        moveToSecret(context) {\n          if (authorized()) {\n            this.transitionTo('secret', context);\n          } else {\n            this.transitionTo('fourOhFour');\n          }\n        }\n      }\n      ```\n         Transition to a nested route\n         ```app/router.js\n      // ...\n         Router.map(function() {\n        this.route('articles', { path: '/articles' }, function() {\n          this.route('new');\n        });\n      });\n         export default Router;\n      ```\n         ```app/routes/index.js\n      import Route from '@ember/routing/route';\n      import { action } from '@ember/object';\n         export default class IndexRoute extends Route {\n        @action\n        transitionToNewArticle() {\n          this.transitionTo('articles.new');\n        }\n      }\n      ```\n         Multiple Models Example\n         ```app/router.js\n      // ...\n         Router.map(function() {\n        this.route('index');\n           this.route('breakfast', { path: ':breakfastId' }, function() {\n          this.route('cereal', { path: ':cerealId' });\n        });\n      });\n         export default Router;\n      ```\n         ```app/routes/index.js\n      import Route from '@ember/routing/route';\n      import { action } from '@ember/object';\n         export default class IndexRoute extends Route {\n        @action\n        moveToChocolateCereal() {\n          let cereal = { cerealId: 'ChocolateYumminess' };\n          let breakfast = { breakfastId: 'CerealAndMilk' };\n             this.transitionTo('breakfast.cereal', breakfast, cereal);\n        }\n      }\n      ```\n         Nested Route with Query String Example\n         ```app/routes.js\n      // ...\n         Router.map(function() {\n        this.route('fruits', function() {\n          this.route('apples');\n        });\n      });\n         export default Router;\n      ```\n         ```app/routes/index.js\n      import Route from '@ember/routing/route';\n         export default class IndexRoute extends Route {\n        @action\n        transitionToApples() {\n          this.transitionTo('fruits.apples', { queryParams: { color: 'red' } });\n        }\n      }\n      ```\n         @method transitionTo\n      @param {String} [name] the name of the route or a URL.\n      @param {...Object} [models] the model(s) or identifier(s) to be used while\n        transitioning to the route.\n      @param {Object} [options] optional hash with a queryParams property\n        containing a mapping of query parameters. May be supplied as the only\n        parameter to trigger a query-parameter-only transition.\n      @return {Transition} the transition object associated with this\n        attempted transition\n      @since 1.0.0\n      @public\n    */\n\n\n    transitionTo(...args) {\n      // eslint-disable-line no-unused-vars\n      return this._router.transitionTo(...(0, _utils2.prefixRouteNameArg)(this, args));\n    }\n    /**\n      Perform a synchronous transition into another route without attempting\n      to resolve promises, update the URL, or abort any currently active\n      asynchronous transitions (i.e. regular transitions caused by\n      `transitionTo` or URL changes).\n         This method is handy for performing intermediate transitions on the\n      way to a final destination route, and is called internally by the\n      default implementations of the `error` and `loading` handlers.\n         @method intermediateTransitionTo\n      @param {String} name the name of the route\n      @param {...Object} models the model(s) to be used while transitioning\n      to the route.\n      @since 1.2.0\n      @public\n     */\n\n\n    intermediateTransitionTo(...args) {\n      var [name, ...preparedArgs] = (0, _utils2.prefixRouteNameArg)(this, args);\n\n      this._router.intermediateTransitionTo(name, ...preparedArgs);\n    }\n    /**\n      Refresh the model on this route and any child routes, firing the\n      `beforeModel`, `model`, and `afterModel` hooks in a similar fashion\n      to how routes are entered when transitioning in from other route.\n      The current route params (e.g. `article_id`) will be passed in\n      to the respective model hooks, and if a different model is returned,\n      `setupController` and associated route hooks will re-fire as well.\n         An example usage of this method is re-querying the server for the\n      latest information using the same parameters as when the route\n      was first entered.\n         Note that this will cause `model` hooks to fire even on routes\n      that were provided a model object when the route was initially\n      entered.\n         @method refresh\n      @return {Transition} the transition object associated with this\n        attempted transition\n      @since 1.4.0\n      @public\n     */\n\n\n    refresh() {\n      return this._router._routerMicrolib.refresh(this);\n    }\n    /**\n      Transition into another route while replacing the current URL, if possible.\n      This will replace the current history entry instead of adding a new one.\n      Beside that, it is identical to `transitionTo` in all other respects. See\n      'transitionTo' for additional information regarding multiple models.\n         Example\n         ```app/router.js\n      // ...\n         Router.map(function() {\n        this.route('index');\n        this.route('secret');\n      });\n         export default Router;\n      ```\n         ```app/routes/secret.js\n      import Route from '@ember/routing/route';\n         export default class SecretRoute Route {\n        afterModel() {\n          if (!authorized()){\n            this.replaceWith('index');\n          }\n        }\n      }\n      ```\n         @method replaceWith\n      @param {String} name the name of the route or a URL\n      @param {...Object} models the model(s) or identifier(s) to be used while\n        transitioning to the route.\n      @param {Object} [options] optional hash with a queryParams property\n        containing a mapping of query parameters\n      @return {Transition} the transition object associated with this\n        attempted transition\n      @since 1.0.0\n      @public\n    */\n\n\n    replaceWith(...args) {\n      return this._router.replaceWith(...(0, _utils2.prefixRouteNameArg)(this, args));\n    }\n    /**\n      This hook is the entry point for router.js\n         @private\n      @method setup\n    */\n\n\n    setup(context, transition) {\n      var controllerName = this.controllerName || this.routeName;\n      var definedController = this.controllerFor(controllerName, true);\n      var controller;\n\n      if (definedController) {\n        controller = definedController;\n      } else {\n        controller = this.generateController(controllerName);\n      } // Assign the route's controller so that it can more easily be\n      // referenced in action handlers. Side effects. Side effects everywhere.\n\n\n      if (!this.controller) {\n        var qp = (0, _metal.get)(this, '_qp');\n        var propNames = qp !== undefined ? (0, _metal.get)(qp, 'propertyNames') : [];\n        addQueryParamsObservers(controller, propNames);\n        this.controller = controller;\n      }\n\n      var queryParams = (0, _metal.get)(this, '_qp');\n      var states = queryParams.states;\n      controller._qpDelegate = states.allowOverrides;\n\n      if (transition) {\n        // Update the model dep values used to calculate cache keys.\n        (0, _utils2.stashParamNames)(this._router, transition[_router_js.STATE_SYMBOL].routeInfos);\n        var cache = this._bucketCache;\n        var params = transition[_router_js.PARAMS_SYMBOL];\n        var allParams = queryParams.propertyNames;\n        allParams.forEach(prop => {\n          var aQp = queryParams.map[prop];\n          aQp.values = params;\n          var cacheKey = (0, _utils2.calculateCacheKey)(aQp.route.fullRouteName, aQp.parts, aQp.values);\n          var value = cache.lookup(cacheKey, prop, aQp.undecoratedDefaultValue);\n          (0, _metal.set)(controller, prop, value);\n        });\n        var qpValues = getQueryParamsFor(this, transition[_router_js.STATE_SYMBOL]);\n        (0, _metal.setProperties)(controller, qpValues);\n      }\n\n      this.setupController(controller, context, transition);\n\n      if (this._environment.options.shouldRender) {\n        this.renderTemplate(controller, context);\n      } // Setup can cause changes to QPs which need to be propogated immediately in\n      // some situations. Eventually, we should work on making these async somehow.\n\n\n      (0, _metal.flushAsyncObservers)(false);\n    }\n    /*\n      Called when a query parameter for this route changes, regardless of whether the route\n      is currently part of the active route hierarchy. This will update the query parameter's\n      value in the cache so if this route becomes active, the cache value has been updated.\n    */\n\n\n    _qpChanged(prop, value, qp) {\n      if (!qp) {\n        return;\n      } // Update model-dep cache\n\n\n      var cache = this._bucketCache;\n      var cacheKey = (0, _utils2.calculateCacheKey)(qp.route.fullRouteName, qp.parts, qp.values);\n      cache.stash(cacheKey, prop, value);\n    }\n    /**\n      This hook is the first of the route entry validation hooks\n      called when an attempt is made to transition into a route\n      or one of its children. It is called before `model` and\n      `afterModel`, and is appropriate for cases when:\n         1) A decision can be made to redirect elsewhere without\n         needing to resolve the model first.\n      2) Any async operations need to occur first before the\n         model is attempted to be resolved.\n         This hook is provided the current `transition` attempt\n      as a parameter, which can be used to `.abort()` the transition,\n      save it for a later `.retry()`, or retrieve values set\n      on it from a previous hook. You can also just call\n      `this.transitionTo` to another route to implicitly\n      abort the `transition`.\n         You can return a promise from this hook to pause the\n      transition until the promise resolves (or rejects). This could\n      be useful, for instance, for retrieving async code from\n      the server that is required to enter a route.\n         @method beforeModel\n      @param {Transition} transition\n      @return {any | Promise<any>} if the value returned from this hook is\n        a promise, the transition will pause until the transition\n        resolves. Otherwise, non-promise return values are not\n        utilized in any way.\n      @since 1.0.0\n      @public\n    */\n\n\n    beforeModel() {}\n    /**\n      This hook is called after this route's model has resolved.\n      It follows identical async/promise semantics to `beforeModel`\n      but is provided the route's resolved model in addition to\n      the `transition`, and is therefore suited to performing\n      logic that can only take place after the model has already\n      resolved.\n         ```app/routes/posts.js\n      import Route from '@ember/routing/route';\n         export default class PostsRoute extends Route {\n        afterModel(posts, transition) {\n          if (posts.get('length') === 1) {\n            this.transitionTo('post.show', posts.get('firstObject'));\n          }\n        }\n      }\n      ```\n         Refer to documentation for `beforeModel` for a description\n      of transition-pausing semantics when a promise is returned\n      from this hook.\n         @method afterModel\n      @param {Object} resolvedModel the value returned from `model`,\n        or its resolved value if it was a promise\n      @param {Transition} transition\n      @return {any | Promise<any>} if the value returned from this hook is\n        a promise, the transition will pause until the transition\n        resolves. Otherwise, non-promise return values are not\n        utilized in any way.\n      @since 1.0.0\n      @public\n     */\n\n\n    afterModel() {}\n    /**\n      A hook you can implement to optionally redirect to another route.\n         Calling `this.transitionTo` from inside of the `redirect` hook will\n      abort the current transition (into the route that has implemented `redirect`).\n         `redirect` and `afterModel` behave very similarly and are\n      called almost at the same time, but they have an important\n      distinction when calling `this.transitionTo` to a child route\n      of the current route. From `afterModel`, this new transition\n      invalidates the current transition, causing `beforeModel`,\n      `model`, and `afterModel` hooks to be called again. But the\n      same transition started from `redirect` does _not_ invalidate\n      the current transition. In other words, by the time the `redirect`\n      hook has been called, both the resolved model and the attempted\n      entry into this route are considered fully validated.\n         @method redirect\n      @param {Object} model the model for this route\n      @param {Transition} transition the transition object associated with the current transition\n      @since 1.0.0\n      @public\n    */\n\n\n    redirect() {}\n    /**\n      Called when the context is changed by router.js.\n         @private\n      @method contextDidChange\n    */\n\n\n    contextDidChange() {\n      this.currentModel = this.context;\n    }\n    /**\n      A hook you can implement to convert the URL into the model for\n      this route.\n         ```app/router.js\n      // ...\n         Router.map(function() {\n        this.route('post', { path: '/posts/:post_id' });\n      });\n         export default Router;\n      ```\n         The model for the `post` route is `store.findRecord('post', params.post_id)`.\n         By default, if your route has a dynamic segment ending in `_id`:\n         * The model class is determined from the segment (`post_id`'s\n        class is `App.Post`)\n      * The find method is called on the model class with the value of\n        the dynamic segment.\n         Note that for routes with dynamic segments, this hook is not always\n      executed. If the route is entered through a transition (e.g. when\n      using the `link-to` Handlebars helper or the `transitionTo` method\n      of routes), and a model context is already provided this hook\n      is not called.\n         A model context does not include a primitive string or number,\n      which does cause the model hook to be called.\n         Routes without dynamic segments will always execute the model hook.\n         ```javascript\n      // no dynamic segment, model hook always called\n      this.transitionTo('posts');\n         // model passed in, so model hook not called\n      thePost = store.findRecord('post', 1);\n      this.transitionTo('post', thePost);\n         // integer passed in, model hook is called\n      this.transitionTo('post', 1);\n         // model id passed in, model hook is called\n      // useful for forcing the hook to execute\n      thePost = store.findRecord('post', 1);\n      this.transitionTo('post', thePost.id);\n      ```\n         This hook follows the asynchronous/promise semantics\n      described in the documentation for `beforeModel`. In particular,\n      if a promise returned from `model` fails, the error will be\n      handled by the `error` hook on `Route`.\n         Example\n         ```app/routes/post.js\n      import Route from '@ember/routing/route';\n         export default class PostRoute extends Route {\n        model(params) {\n          return this.store.findRecord('post', params.post_id);\n        }\n      }\n      ```\n         @method model\n      @param {Object} params the parameters extracted from the URL\n      @param {Transition} transition\n      @return {any | Promise<any>} the model for this route. If\n        a promise is returned, the transition will pause until\n        the promise resolves, and the resolved value of the promise\n        will be used as the model for this route.\n      @since 1.0.0\n      @public\n    */\n\n\n    model(params, transition) {\n      var name, sawParams, value;\n      var queryParams = (0, _metal.get)(this, '_qp.map');\n\n      for (var prop in params) {\n        if (prop === 'queryParams' || queryParams && prop in queryParams) {\n          continue;\n        }\n\n        var match = prop.match(/^(.*)_id$/);\n\n        if (match !== null) {\n          name = match[1];\n          value = params[prop];\n        }\n\n        sawParams = true;\n      }\n\n      if (!name) {\n        if (sawParams) {\n          return (0, _polyfills.assign)({}, params);\n        } else {\n          if (transition.resolveIndex < 1) {\n            return;\n          }\n\n          return transition[_router_js.STATE_SYMBOL].routeInfos[transition.resolveIndex - 1].context;\n        }\n      }\n\n      return this.findModel(name, value);\n    }\n    /**\n      @private\n      @method deserialize\n      @param {Object} params the parameters extracted from the URL\n      @param {Transition} transition\n      @return {any | Promise<any>} the model for this route.\n         Router.js hook.\n     */\n\n\n    deserialize(_params, transition) {\n      return this.model(this._paramsFor(this.routeName, _params), transition);\n    }\n    /**\n         @method findModel\n      @param {String} type the model type\n      @param {Object} value the value passed to find\n      @private\n    */\n\n\n    findModel(...args) {\n      return (0, _metal.get)(this, 'store').find(...args);\n    }\n    /**\n      A hook you can use to setup the controller for the current route.\n         This method is called with the controller for the current route and the\n      model supplied by the `model` hook.\n         By default, the `setupController` hook sets the `model` property of\n      the controller to the specified `model` when it is not `undefined`.\n         If you implement the `setupController` hook in your Route, it will\n      prevent this default behavior. If you want to preserve that behavior\n      when implementing your `setupController` function, make sure to call\n      `super`:\n         ```app/routes/photos.js\n      import Route from '@ember/routing/route';\n         export default class PhotosRoute extends Route {\n        model() {\n          return this.store.findAll('photo');\n        }\n           setupController(controller, model) {\n          super.setupController(controller, model);\n             this.controllerFor('application').set('showingPhotos', true);\n        }\n      }\n      ```\n         The provided controller will be one resolved based on the name\n      of this route.\n         If no explicit controller is defined, Ember will automatically create one.\n         As an example, consider the router:\n         ```app/router.js\n      // ...\n         Router.map(function() {\n        this.route('post', { path: '/posts/:post_id' });\n      });\n         export default Router;\n      ```\n         If you have defined a file for the post controller,\n      the framework will use it.\n      If it is not defined, a basic `Controller` instance would be used.\n         @example Behavior of a basic Controller\n         ```app/routes/post.js\n      import Route from '@ember/routing/route';\n         export default class PostRoute extends Route {\n        setupController(controller, model) {\n          controller.set('model', model);\n        }\n      });\n      ```\n         @method setupController\n      @param {Controller} controller instance\n      @param {Object} model\n      @param {Object} transition\n      @since 1.0.0\n      @public\n    */\n\n\n    setupController(controller, context, _transition) {\n      // eslint-disable-line no-unused-vars\n      if (controller && context !== undefined) {\n        (0, _metal.set)(controller, 'model', context);\n      }\n    }\n    /**\n      Returns the controller of the current route, or a parent (or any ancestor)\n      route in a route hierarchy.\n         The controller instance must already have been created, either through entering the\n      associated route or using `generateController`.\n         ```app/routes/post.js\n      import Route from '@ember/routing/route';\n         export default class PostRoute extends Route {\n        setupController(controller, post) {\n          super.setupController(controller, post);\n             this.controllerFor('posts').set('currentPost', post);\n        }\n      }\n      ```\n         @method controllerFor\n      @param {String} name the name of the route or controller\n      @return {Controller}\n      @since 1.0.0\n      @public\n    */\n\n\n    controllerFor(name, _skipAssert) {\n      var owner = (0, _owner.getOwner)(this);\n      var route = owner.lookup(`route:${name}`);\n\n      if (route && route.controllerName) {\n        name = route.controllerName;\n      }\n\n      var controller = owner.lookup(`controller:${name}`); // NOTE: We're specifically checking that skipAssert is true, because according\n      //   to the old API the second parameter was model. We do not want people who\n      //   passed a model to skip the assertion.\n\n      (true && !(controller !== undefined || _skipAssert === true) && (0, _debug.assert)(`The controller named '${name}' could not be found. Make sure that this route exists and has already been entered at least once. If you are accessing a controller not associated with a route, make sure the controller class is explicitly defined.`, controller !== undefined || _skipAssert === true));\n      return controller;\n    }\n    /**\n      Generates a controller for a route.\n         Example\n         ```app/routes/post.js\n      import Route from '@ember/routing/route';\n         export default class Post extends Route {\n        setupController(controller, post) {\n          super.setupController(controller, post);\n             this.generateController('posts');\n        }\n      }\n      ```\n         @method generateController\n      @param {String} name the name of the controller\n      @private\n    */\n\n\n    generateController(name) {\n      var owner = (0, _owner.getOwner)(this);\n      return (0, _generate_controller.default)(owner, name);\n    }\n    /**\n      Returns the resolved model of a parent (or any ancestor) route\n      in a route hierarchy.  During a transition, all routes\n      must resolve a model object, and if a route\n      needs access to a parent route's model in order to\n      resolve a model (or just reuse the model from a parent),\n      it can call `this.modelFor(theNameOfParentRoute)` to\n      retrieve it. If the ancestor route's model was a promise,\n      its resolved result is returned.\n         Example\n         ```app/router.js\n      // ...\n         Router.map(function() {\n        this.route('post', { path: '/posts/:post_id' }, function() {\n          this.route('comments');\n        });\n      });\n         export default Router;\n      ```\n         ```app/routes/post/comments.js\n      import Route from '@ember/routing/route';\n         export default class PostCommentsRoute extends Route {\n        model() {\n          let post = this.modelFor('post');\n             return post.comments;\n        }\n      }\n      ```\n         @method modelFor\n      @param {String} name the name of the route\n      @return {Object} the model object\n      @since 1.0.0\n      @public\n    */\n\n\n    modelFor(_name) {\n      var name;\n      var owner = (0, _owner.getOwner)(this);\n      var transition = this._router && this._router._routerMicrolib ? this._router._routerMicrolib.activeTransition : undefined; // Only change the route name when there is an active transition.\n      // Otherwise, use the passed in route name.\n\n      if (owner.routable && transition !== undefined) {\n        name = getEngineRouteName(owner, _name);\n      } else {\n        name = _name;\n      }\n\n      var route = owner.lookup(`route:${name}`); // If we are mid-transition, we want to try and look up\n      // resolved parent contexts on the current transitionEvent.\n\n      if (transition !== undefined && transition !== null) {\n        var modelLookupName = route && route.routeName || name;\n\n        if (transition.resolvedModels.hasOwnProperty(modelLookupName)) {\n          return transition.resolvedModels[modelLookupName];\n        }\n      }\n\n      return route && route.currentModel;\n    }\n    /**\n      A hook you can use to render the template for the current route.\n         This method is called with the controller for the current route and the\n      model supplied by the `model` hook. By default, it renders the route's\n      template, configured with the controller for the route.\n         This method can be overridden to set up and render additional or\n      alternative templates.\n         ```app/routes/posts.js\n      import Route from '@ember/routing/route';\n         export default class PostsRoute extends Route {\n        renderTemplate(controller, model) {\n          let favController = this.controllerFor('favoritePost');\n             // Render the `favoritePost` template into\n          // the outlet `posts`, and display the `favoritePost`\n          // controller.\n          this.render('favoritePost', {\n            outlet: 'posts',\n            controller: favController\n          });\n        }\n      }\n      ```\n         @method renderTemplate\n      @param {Object} controller the route's controller\n      @param {Object} model the route's model\n      @since 1.0.0\n      @public\n    */\n\n\n    renderTemplate(_controller, _model) {\n      // eslint-disable-line no-unused-vars\n      this.render();\n    }\n    /**\n      `render` is used to render a template into a region of another template\n      (indicated by an `{{outlet}}`). `render` is used both during the entry\n      phase of routing (via the `renderTemplate` hook) and later in response to\n      user interaction.\n         For example, given the following minimal router and templates:\n         ```app/router.js\n      // ...\n         Router.map(function() {\n        this.route('photos');\n      });\n         export default Router;\n      ```\n         ```handlebars\n      <!-- application.hbs -->\n      <div class='something-in-the-app-hbs'>\n        {{outlet \"anOutletName\"}}\n      </div>\n      ```\n         ```handlebars\n      <!-- photos.hbs -->\n      <h1>Photos</h1>\n      ```\n         You can render `photos.hbs` into the `\"anOutletName\"` outlet of\n      `application.hbs` by calling `render`:\n         ```app/routes/post.js\n      import Route from '@ember/routing/route';\n         export default class PostRoute extends Route {\n        renderTemplate() {\n          this.render('photos', {\n            into: 'application',\n            outlet: 'anOutletName'\n          })\n        }\n      }\n      ```\n         `render` additionally allows you to supply which `controller` and\n      `model` objects should be loaded and associated with the rendered template.\n         ```app/routes/posts.js\n      import Route from '@ember/routing/route';\n         export default class PostsRoute extends Route {\n        renderTemplate(controller, model){\n          this.render('posts', {    // the template to render, referenced by name\n            into: 'application',    // the template to render into, referenced by name\n            outlet: 'anOutletName', // the outlet inside `options.into` to render into.\n            controller: 'someControllerName', // the controller to use for this template, referenced by name\n            model: model            // the model to set on `options.controller`.\n          })\n        }\n      }\n      ```\n         The string values provided for the template name, and controller\n      will eventually pass through to the resolver for lookup. See\n      Resolver for how these are mapped to JavaScript objects in your\n      application. The template to render into needs to be related to  either the\n      current route or one of its ancestors.\n         Not all options need to be passed to `render`. Default values will be used\n      based on the name of the route specified in the router or the Route's\n      `controllerName` and `templateName` properties.\n         For example:\n         ```app/router.js\n      // ...\n         Router.map(function() {\n        this.route('index');\n        this.route('post', { path: '/posts/:post_id' });\n      });\n         export default Router;\n      ```\n         ```app/routes/post.js\n      import Route from '@ember/routing/route';\n         export default class PostRoute extends Route {\n        renderTemplate() {\n          this.render(); // all defaults apply\n        }\n      }\n      ```\n         The name of the route, defined by the router, is `post`.\n         The following equivalent default options will be applied when\n      the Route calls `render`:\n         ```javascript\n      this.render('post', {  // the template name associated with 'post' Route\n        into: 'application', // the parent route to 'post' Route\n        outlet: 'main',      // {{outlet}} and {{outlet 'main'}} are synonymous,\n        controller: 'post',  // the controller associated with the 'post' Route\n      })\n      ```\n         By default the controller's `model` will be the route's model, so it does not\n      need to be passed unless you wish to change which model is being used.\n         @method render\n      @param {String} name the name of the template to render\n      @param {Object} [options] the options\n      @param {String} [options.into] the template to render into,\n                      referenced by name. Defaults to the parent template\n      @param {String} [options.outlet] the outlet inside `options.into` to render into.\n                      Defaults to 'main'\n      @param {String|Object} [options.controller] the controller to use for this template,\n                      referenced by name or as a controller instance. Defaults to the Route's paired controller\n      @param {Object} [options.model] the model object to set on `options.controller`.\n                      Defaults to the return value of the Route's model hook\n      @since 1.0.0\n      @public\n    */\n\n\n    render(_name, options) {\n      var name;\n      var isDefaultRender = arguments.length === 0;\n\n      if (!isDefaultRender) {\n        if (typeof _name === 'object' && !options) {\n          name = this.templateName || this.routeName;\n          options = _name;\n        } else {\n          (true && !(!(0, _metal.isEmpty)(_name)) && (0, _debug.assert)('The name in the given arguments is undefined or empty string', !(0, _metal.isEmpty)(_name)));\n          name = _name;\n        }\n      }\n\n      var renderOptions = buildRenderOptions(this, isDefaultRender, name, options);\n      ROUTE_CONNECTIONS.get(this).push(renderOptions);\n      (0, _runloop.once)(this._router, '_setOutlets');\n    }\n    /**\n      Disconnects a view that has been rendered into an outlet.\n         You may pass any or all of the following options to `disconnectOutlet`:\n         * `outlet`: the name of the outlet to clear (default: 'main')\n      * `parentView`: the name of the view containing the outlet to clear\n         (default: the view rendered by the parent route)\n         Example:\n         ```app/routes/application.js\n      import Route from '@ember/routing/route';\n      import { action } from '@ember/object';\n         export default class ApplicationRoute extends Route {\n        @action\n        showModal(evt) {\n          this.render(evt.modalName, {\n            outlet: 'modal',\n            into: 'application'\n          });\n        }\n           @action\n        hideModal() {\n          this.disconnectOutlet({\n            outlet: 'modal',\n            parentView: 'application'\n          });\n        }\n      }\n      ```\n         Alternatively, you can pass the `outlet` name directly as a string.\n         Example:\n         ```app/routes/application.js\n      import Route from '@ember/routing/route';\n      import { action } from '@ember/object';\n         export default class ApplicationRoute extends Route {\n        @action\n        showModal(evt) {\n          // ...\n        }\n           @action\n        hideModal(evt) {\n          this.disconnectOutlet('modal');\n        }\n      }\n      ```\n         @method disconnectOutlet\n      @param {Object|String} options the options hash or outlet name\n      @since 1.0.0\n      @public\n    */\n\n\n    disconnectOutlet(options) {\n      var outletName;\n      var parentView;\n\n      if (options) {\n        if (typeof options === 'string') {\n          outletName = options;\n        } else {\n          outletName = options.outlet;\n          parentView = options.parentView ? options.parentView.replace(/\\//g, '.') : undefined;\n          (true && !(!('outlet' in options && options.outlet === undefined)) && (0, _debug.assert)('You passed undefined as the outlet name.', !('outlet' in options && options.outlet === undefined)));\n        }\n      }\n\n      outletName = outletName || 'main';\n\n      this._disconnectOutlet(outletName, parentView);\n\n      var routeInfos = this._router._routerMicrolib.currentRouteInfos;\n\n      for (var i = 0; i < routeInfos.length; i++) {\n        // This non-local state munging is sadly necessary to maintain\n        // backward compatibility with our existing semantics, which allow\n        // any route to disconnectOutlet things originally rendered by any\n        // other route. This should all get cut in 2.0.\n        routeInfos[i].route._disconnectOutlet(outletName, parentView);\n      }\n    }\n\n    _disconnectOutlet(outletName, parentView) {\n      var parent = parentRoute(this);\n\n      if (parent && parentView === parent.routeName) {\n        parentView = undefined;\n      }\n\n      var connections = ROUTE_CONNECTIONS.get(this);\n\n      for (var i = 0; i < connections.length; i++) {\n        var connection = connections[i];\n\n        if (connection.outlet === outletName && connection.into === parentView) {\n          // This neuters the disconnected outlet such that it doesn't\n          // render anything, but it leaves an entry in the outlet\n          // hierarchy so that any existing other renders that target it\n          // don't suddenly blow up. They will still stick themselves\n          // into its outlets, which won't render anywhere. All of this\n          // statefulness should get the machete in 2.0.\n          connections[i] = {\n            owner: connection.owner,\n            into: connection.into,\n            outlet: connection.outlet,\n            name: connection.name,\n            controller: undefined,\n            template: undefined,\n            model: undefined\n          };\n          (0, _runloop.once)(this._router, '_setOutlets');\n        }\n      }\n\n      ROUTE_CONNECTIONS.set(this, connections);\n    }\n\n    willDestroy() {\n      this.teardownViews();\n    }\n    /**\n      @private\n         @method teardownViews\n    */\n\n\n    teardownViews() {\n      var connections = ROUTE_CONNECTIONS.get(this);\n\n      if (connections !== undefined && connections.length > 0) {\n        ROUTE_CONNECTIONS.set(this, []);\n        (0, _runloop.once)(this._router, '_setOutlets');\n      }\n    }\n    /**\n      Allows you to produce custom metadata for the route.\n      The return value of this method will be attatched to\n      its corresponding RouteInfoWithAttributes obejct.\n         Example\n         ```app/routes/posts/index.js\n      import Route from '@ember/routing/route';\n         export default class PostsIndexRoute extends Route {\n        buildRouteInfoMetadata() {\n          return { title: 'Posts Page' }\n        }\n      }\n      ```\n         ```app/routes/application.js\n      import Route from '@ember/routing/route';\n      import { inject as service } from '@ember/service';\n         export default class ApplicationRoute extends Route {\n        @service router\n           constructor() {\n          super(...arguments);\n             this.router.on('routeDidChange', transition => {\n            document.title = transition.to.metadata.title;\n            // would update document's title to \"Posts Page\"\n          });\n        }\n      }\n      ```\n      @method buildRouteInfoMetadata\n      @return any\n      @since 3.10.0\n      @public\n     */\n\n\n    buildRouteInfoMetadata() {}\n\n  }\n\n  Route.reopenClass({\n    isRouteFactory: true\n  });\n\n  function parentRoute(route) {\n    var routeInfo = routeInfoFor(route, route._router._routerMicrolib.state.routeInfos, -1);\n    return routeInfo && routeInfo.route;\n  }\n\n  function routeInfoFor(route, routeInfos, offset = 0) {\n    if (!routeInfos) {\n      return;\n    }\n\n    var current;\n\n    for (var i = 0; i < routeInfos.length; i++) {\n      current = routeInfos[i].route;\n\n      if (current === route) {\n        return routeInfos[i + offset];\n      }\n    }\n\n    return;\n  }\n\n  function buildRenderOptions(route, isDefaultRender, _name, options) {\n    (true && !(isDefaultRender || !(options && 'outlet' in options && options.outlet === undefined)) && (0, _debug.assert)('You passed undefined as the outlet name.', isDefaultRender || !(options && 'outlet' in options && options.outlet === undefined)));\n    var owner = (0, _owner.getOwner)(route);\n    var name, templateName, into, outlet, model;\n    var controller = undefined;\n\n    if (options) {\n      into = options.into && options.into.replace(/\\//g, '.');\n      outlet = options.outlet;\n      controller = options.controller;\n      model = options.model;\n    }\n\n    outlet = outlet || 'main';\n\n    if (isDefaultRender) {\n      name = route.routeName;\n      templateName = route.templateName || name;\n    } else {\n      name = _name.replace(/\\//g, '.');\n      templateName = name;\n    }\n\n    if (controller === undefined) {\n      if (isDefaultRender) {\n        controller = route.controllerName || owner.lookup(`controller:${name}`);\n      } else {\n        controller = owner.lookup(`controller:${name}`) || route.controllerName || route.routeName;\n      }\n    }\n\n    if (typeof controller === 'string') {\n      var controllerName = controller;\n      controller = owner.lookup(`controller:${controllerName}`);\n      (true && !(isDefaultRender || controller !== undefined) && (0, _debug.assert)(`You passed \\`controller: '${controllerName}'\\` into the \\`render\\` method, but no such controller could be found.`, isDefaultRender || controller !== undefined));\n    }\n\n    if (model === undefined) {\n      model = route.currentModel;\n    } else {\n      controller.set('model', model);\n    }\n\n    var template = owner.lookup(`template:${templateName}`);\n    (true && !(isDefaultRender || template !== undefined) && (0, _debug.assert)(`Could not find \"${templateName}\" template, view, or component.`, isDefaultRender || template !== undefined));\n    var parent;\n\n    if (into && (parent = parentRoute(route)) && into === parent.routeName) {\n      into = undefined;\n    }\n\n    var renderOptions = {\n      owner,\n      into,\n      outlet,\n      name,\n      controller,\n      model,\n      template: template !== undefined ? template(owner) : route._topLevelViewTemplate(owner)\n    };\n\n    if (true\n    /* DEBUG */\n    ) {\n      var LOG_VIEW_LOOKUPS = (0, _metal.get)(route._router, 'namespace.LOG_VIEW_LOOKUPS');\n\n      if (LOG_VIEW_LOOKUPS && !template) {\n        (0, _debug.info)(`Could not find \"${name}\" template. Nothing will be rendered`, {\n          fullName: `template:${name}`\n        });\n      }\n    }\n\n    return renderOptions;\n  }\n\n  function getFullQueryParams(router, state) {\n    if (state['fullQueryParams']) {\n      return state['fullQueryParams'];\n    }\n\n    state['fullQueryParams'] = {};\n    (0, _polyfills.assign)(state['fullQueryParams'], state.queryParams);\n\n    router._deserializeQueryParams(state.routeInfos, state['fullQueryParams']);\n\n    return state['fullQueryParams'];\n  }\n\n  function getQueryParamsFor(route, state) {\n    state['queryParamsFor'] = state['queryParamsFor'] || {};\n    var name = route.fullRouteName;\n\n    if (state['queryParamsFor'][name]) {\n      return state['queryParamsFor'][name];\n    }\n\n    var fullQueryParams = getFullQueryParams(route._router, state);\n    var params = state['queryParamsFor'][name] = {}; // Copy over all the query params for this route/controller into params hash.\n\n    var qps = (0, _metal.get)(route, '_qp.qps');\n\n    for (var i = 0; i < qps.length; ++i) {\n      // Put deserialized qp on params hash.\n      var qp = qps[i];\n      var qpValueWasPassedIn = (qp.prop in fullQueryParams);\n      params[qp.prop] = qpValueWasPassedIn ? fullQueryParams[qp.prop] : copyDefaultValue(qp.defaultValue);\n    }\n\n    return params;\n  }\n\n  function copyDefaultValue(value) {\n    if (Array.isArray(value)) {\n      return (0, _runtime.A)(value.slice());\n    }\n\n    return value;\n  }\n  /*\n    Merges all query parameters from a controller with those from\n    a route, returning a new object and avoiding any mutations to\n    the existing objects.\n  */\n\n\n  function mergeEachQueryParams(controllerQP, routeQP) {\n    var qps = {};\n    var keysAlreadyMergedOrSkippable = {\n      defaultValue: true,\n      type: true,\n      scope: true,\n      as: true\n    }; // first loop over all controller qps, merging them with any matching route qps\n    // into a new empty object to avoid mutating.\n\n    for (var cqpName in controllerQP) {\n      if (!controllerQP.hasOwnProperty(cqpName)) {\n        continue;\n      }\n\n      var newControllerParameterConfiguration = {};\n      (0, _polyfills.assign)(newControllerParameterConfiguration, controllerQP[cqpName], routeQP[cqpName]);\n      qps[cqpName] = newControllerParameterConfiguration; // allows us to skip this QP when we check route QPs.\n\n      keysAlreadyMergedOrSkippable[cqpName] = true;\n    } // loop over all route qps, skipping those that were merged in the first pass\n    // because they also appear in controller qps\n\n\n    for (var rqpName in routeQP) {\n      if (!routeQP.hasOwnProperty(rqpName) || keysAlreadyMergedOrSkippable[rqpName]) {\n        continue;\n      }\n\n      var newRouteParameterConfiguration = {};\n      (0, _polyfills.assign)(newRouteParameterConfiguration, routeQP[rqpName], controllerQP[rqpName]);\n      qps[rqpName] = newRouteParameterConfiguration;\n    }\n\n    return qps;\n  }\n\n  function addQueryParamsObservers(controller, propNames) {\n    propNames.forEach(prop => {\n      if ((0, _metal.descriptorForProperty)(controller, prop) === undefined) {\n        var desc = (0, _utils.lookupDescriptor)(controller, prop);\n\n        if (desc !== null && (typeof desc.get === 'function' || typeof desc.set === 'function')) {\n          (0, _metal.defineProperty)(controller, prop, (0, _compat.dependentKeyCompat)({\n            get: desc.get,\n            set: desc.set\n          }));\n        }\n      }\n\n      (0, _metal.addObserver)(controller, `${prop}.[]`, controller, controller._qpChanged, false);\n    });\n  }\n\n  function getEngineRouteName(engine, routeName) {\n    if (engine.routable) {\n      var prefix = engine.mountPoint;\n\n      if (routeName === 'application') {\n        return prefix;\n      } else {\n        return `${prefix}.${routeName}`;\n      }\n    }\n\n    return routeName;\n  }\n  /**\n      A hook you can implement to convert the route's model into parameters\n      for the URL.\n  \n      ```app/router.js\n      // ...\n  \n      Router.map(function() {\n        this.route('post', { path: '/posts/:post_id' });\n      });\n  \n      ```\n  \n      ```app/routes/post.js\n      import Route from '@ember/routing/route';\n  \n      export default class PostRoute extends Route {\n        model({ post_id }) {\n          // the server returns `{ id: 12 }`\n          return fetch(`/posts/${post_id}`;\n        }\n  \n        serialize(model) {\n          // this will make the URL `/posts/12`\n          return { post_id: model.id };\n        }\n      }\n      ```\n  \n      The default `serialize` method will insert the model's `id` into the\n      route's dynamic segment (in this case, `:post_id`) if the segment contains '_id'.\n      If the route has multiple dynamic segments or does not contain '_id', `serialize`\n      will return `getProperties(model, params)`\n  \n      This method is called when `transitionTo` is called with a context\n      in order to populate the URL.\n  \n      @method serialize\n      @param {Object} model the routes model\n      @param {Array} params an Array of parameter names for the current\n        route (in the example, `['post_id']`.\n      @return {Object} the serialized parameters\n      @since 1.0.0\n      @public\n    */\n\n\n  Route.prototype.serialize = defaultSerialize;\n  Route.reopen(_runtime.ActionHandler, _runtime.Evented, {\n    mergedProperties: ['queryParams'],\n\n    /**\n      Configuration hash for this route's queryParams. The possible\n      configuration options and their defaults are as follows\n      (assuming a query param whose controller property is `page`):\n         ```javascript\n      queryParams: {\n        page: {\n          // By default, controller query param properties don't\n          // cause a full transition when they are changed, but\n          // rather only cause the URL to update. Setting\n          // `refreshModel` to true will cause an \"in-place\"\n          // transition to occur, whereby the model hooks for\n          // this route (and any child routes) will re-fire, allowing\n          // you to reload models (e.g., from the server) using the\n          // updated query param values.\n          refreshModel: false,\n             // By default, changes to controller query param properties\n          // cause the URL to update via `pushState`, which means an\n          // item will be added to the browser's history, allowing\n          // you to use the back button to restore the app to the\n          // previous state before the query param property was changed.\n          // Setting `replace` to true will use `replaceState` (or its\n          // hash location equivalent), which causes no browser history\n          // item to be added. This options name and default value are\n          // the same as the `link-to` helper's `replace` option.\n          replace: false,\n             // By default, the query param URL key is the same name as\n          // the controller property name. Use `as` to specify a\n          // different URL key.\n          as: 'page'\n        }\n      }\n      ```\n         @property queryParams\n      @for Route\n      @type Object\n      @since 1.6.0\n      @public\n    */\n    queryParams: {},\n\n    /**\n      The name of the template to use by default when rendering this routes\n      template.\n         ```app/routes/posts/list.js\n      import Route from '@ember/routing/route';\n         export default class extends Route {\n        templateName = 'posts/list'\n      });\n      ```\n         ```app/routes/posts/index.js\n      import PostsList from '../posts/list';\n         export default class extends PostsList {};\n      ```\n         ```app/routes/posts/archived.js\n      import PostsList from '../posts/list';\n         export default class extends PostsList {};\n      ```\n         @property templateName\n      @type String\n      @default null\n      @since 1.4.0\n      @public\n    */\n    templateName: null,\n\n    /**\n      @private\n         @property _names\n    */\n    _names: null,\n\n    /**\n      The name of the controller to associate with this route.\n         By default, Ember will lookup a route's controller that matches the name\n      of the route (i.e. `posts.new`). However,\n      if you would like to define a specific controller to use, you can do so\n      using this property.\n         This is useful in many ways, as the controller specified will be:\n         * passed to the `setupController` method.\n      * used as the controller for the template being rendered by the route.\n      * returned from a call to `controllerFor` for the route.\n         @property controllerName\n      @type String\n      @default null\n      @since 1.4.0\n      @public\n    */\n    controllerName: null,\n\n    /**\n      Store property provides a hook for data persistence libraries to inject themselves.\n         By default, this store property provides the exact same functionality previously\n      in the model hook.\n         Currently, the required interface is:\n         `store.find(modelName, findArguments)`\n         @property store\n      @type {Object}\n      @private\n    */\n    store: (0, _metal.computed)({\n      get() {\n        var owner = (0, _owner.getOwner)(this);\n        var routeName = this.routeName;\n        var namespace = (0, _metal.get)(this, '_router.namespace');\n        return {\n          find(name, value) {\n            var modelClass = owner.factoryFor(`model:${name}`);\n            (true && !(Boolean(modelClass)) && (0, _debug.assert)(`You used the dynamic segment ${name}_id in your route ${routeName}, but ${namespace}.${(0, _string.classify)(name)} did not exist and you did not override your route's \\`model\\` hook.`, Boolean(modelClass)));\n\n            if (!modelClass) {\n              return;\n            }\n\n            modelClass = modelClass.class;\n            (true && !(typeof modelClass.find === 'function') && (0, _debug.assert)(`${(0, _string.classify)(name)} has no method \\`find\\`.`, typeof modelClass.find === 'function'));\n            return modelClass.find(value);\n          }\n\n        };\n      },\n\n      set(key, value) {\n        (0, _metal.defineProperty)(this, key, null, value);\n      }\n\n    }),\n\n    /**\n        @private\n           @property _qp\n      */\n    _qp: (0, _metal.computed)(function () {\n      var combinedQueryParameterConfiguration;\n      var controllerName = this.controllerName || this.routeName;\n      var owner = (0, _owner.getOwner)(this);\n      var controller = owner.lookup(`controller:${controllerName}`);\n      var queryParameterConfiguraton = (0, _metal.get)(this, 'queryParams');\n      var hasRouterDefinedQueryParams = Object.keys(queryParameterConfiguraton).length > 0;\n\n      if (controller) {\n        // the developer has authored a controller class in their application for\n        // this route find its query params and normalize their object shape them\n        // merge in the query params for the route. As a mergedProperty,\n        // Route#queryParams is always at least `{}`\n        var controllerDefinedQueryParameterConfiguration = (0, _metal.get)(controller, 'queryParams') || {};\n        var normalizedControllerQueryParameterConfiguration = (0, _utils2.normalizeControllerQueryParams)(controllerDefinedQueryParameterConfiguration);\n        combinedQueryParameterConfiguration = mergeEachQueryParams(normalizedControllerQueryParameterConfiguration, queryParameterConfiguraton);\n      } else if (hasRouterDefinedQueryParams) {\n        // the developer has not defined a controller but *has* supplied route query params.\n        // Generate a class for them so we can later insert default values\n        controller = (0, _generate_controller.default)(owner, controllerName);\n        combinedQueryParameterConfiguration = queryParameterConfiguraton;\n      }\n\n      var qps = [];\n      var map = {};\n      var propertyNames = [];\n\n      for (var propName in combinedQueryParameterConfiguration) {\n        if (!combinedQueryParameterConfiguration.hasOwnProperty(propName)) {\n          continue;\n        } // to support the dubious feature of using unknownProperty\n        // on queryParams configuration\n\n\n        if (propName === 'unknownProperty' || propName === '_super') {\n          // possible todo: issue deprecation warning?\n          continue;\n        }\n\n        var desc = combinedQueryParameterConfiguration[propName];\n        var scope = desc.scope || 'model';\n        var parts = void 0;\n\n        if (scope === 'controller') {\n          parts = [];\n        }\n\n        var urlKey = desc.as || this.serializeQueryParamKey(propName);\n        var defaultValue = (0, _metal.get)(controller, propName);\n        defaultValue = copyDefaultValue(defaultValue);\n        var type = desc.type || (0, _runtime.typeOf)(defaultValue);\n        var defaultValueSerialized = this.serializeQueryParam(defaultValue, urlKey, type);\n        var scopedPropertyName = `${controllerName}:${propName}`;\n        var qp = {\n          undecoratedDefaultValue: (0, _metal.get)(controller, propName),\n          defaultValue,\n          serializedDefaultValue: defaultValueSerialized,\n          serializedValue: defaultValueSerialized,\n          type,\n          urlKey,\n          prop: propName,\n          scopedPropertyName,\n          controllerName,\n          route: this,\n          parts,\n          values: null,\n          scope\n        };\n        map[propName] = map[urlKey] = map[scopedPropertyName] = qp;\n        qps.push(qp);\n        propertyNames.push(propName);\n      }\n\n      return {\n        qps,\n        map,\n        propertyNames,\n        states: {\n          /*\n            Called when a query parameter changes in the URL, this route cares\n            about that query parameter, but the route is not currently\n            in the active route hierarchy.\n          */\n          inactive: (prop, value) => {\n            var qp = map[prop];\n\n            this._qpChanged(prop, value, qp);\n          },\n\n          /*\n            Called when a query parameter changes in the URL, this route cares\n            about that query parameter, and the route is currently\n            in the active route hierarchy.\n          */\n          active: (prop, value) => {\n            var qp = map[prop];\n\n            this._qpChanged(prop, value, qp);\n\n            return this._activeQPChanged(qp, value);\n          },\n\n          /*\n            Called when a value of a query parameter this route handles changes in a controller\n            and the route is currently in the active route hierarchy.\n          */\n          allowOverrides: (prop, value) => {\n            var qp = map[prop];\n\n            this._qpChanged(prop, value, qp);\n\n            return this._updatingQPChanged(qp);\n          }\n        }\n      };\n    }),\n\n    /**\n      Sends an action to the router, which will delegate it to the currently\n      active route hierarchy per the bubbling rules explained under `actions`.\n         Example\n         ```app/router.js\n      // ...\n         Router.map(function() {\n        this.route('index');\n      });\n         export default Router;\n      ```\n         ```app/routes/application.js\n      import Route from '@ember/routing/route';\n      import { action } from '@ember/object';\n         export default class ApplicationRoute extends Route {\n        @action\n        track(arg) {\n          console.log(arg, 'was clicked');\n        }\n      }\n      ```\n         ```app/routes/index.js\n      import Route from '@ember/routing/route';\n      import { action } from '@glimmer/tracking';\n         export default class IndexRoute extends Route {\n        @action\n        trackIfDebug(arg) {\n          if (debug) {\n            this.send('track', arg);\n          }\n        }\n      }\n      ```\n         @method send\n      @param {String} name the name of the action to trigger\n      @param {...*} args\n      @since 1.0.0\n      @public\n    */\n    send(...args) {\n      (true && !(!this.isDestroying && !this.isDestroyed) && (0, _debug.assert)(`Attempted to call .send() with the action '${args[0]}' on the destroyed route '${this.routeName}'.`, !this.isDestroying && !this.isDestroyed));\n\n      if (this._router && this._router._routerMicrolib || !(0, _debug.isTesting)()) {\n        this._router.send(...args);\n      } else {\n        var name = args.shift();\n        var action = this.actions[name];\n\n        if (action) {\n          return action.apply(this, args);\n        }\n      }\n    },\n\n    /**\n      The controller associated with this route.\n         Example\n         ```app/routes/form.js\n      import Route from '@ember/routing/route';\n      import { action } from '@ember/object';\n         export default class FormRoute extends Route {\n        @action\n        willTransition(transition) {\n          if (this.controller.get('userHasEnteredData') &&\n              !confirm('Are you sure you want to abandon progress?')) {\n            transition.abort();\n          } else {\n            // Bubble the `willTransition` action so that\n            // parent routes can decide whether or not to abort.\n            return true;\n          }\n        }\n      }\n      ```\n         @property controller\n      @type Controller\n      @since 1.6.0\n      @public\n    */\n    actions: {\n      /**\n      This action is called when one or more query params have changed. Bubbles.\n           @method queryParamsDidChange\n      @param changed {Object} Keys are names of query params that have changed.\n      @param totalPresent {Object} Keys are names of query params that are currently set.\n      @param removed {Object} Keys are names of query params that have been removed.\n      @returns {boolean}\n      @private\n      */\n      queryParamsDidChange(changed, _totalPresent, removed) {\n        var qpMap = (0, _metal.get)(this, '_qp').map;\n        var totalChanged = Object.keys(changed).concat(Object.keys(removed));\n\n        for (var i = 0; i < totalChanged.length; ++i) {\n          var qp = qpMap[totalChanged[i]];\n\n          if (qp && (0, _metal.get)(this._optionsForQueryParam(qp), 'refreshModel') && this._router.currentState) {\n            this.refresh();\n            break;\n          }\n        }\n\n        return true;\n      },\n\n      finalizeQueryParamChange(params, finalParams, transition) {\n        if (this.fullRouteName !== 'application') {\n          return true;\n        } // Transition object is absent for intermediate transitions.\n\n\n        if (!transition) {\n          return;\n        }\n\n        var routeInfos = transition[_router_js.STATE_SYMBOL].routeInfos;\n        var router = this._router;\n\n        var qpMeta = router._queryParamsFor(routeInfos);\n\n        var changes = router._qpUpdates;\n        var qpUpdated = false;\n        var replaceUrl;\n        (0, _utils2.stashParamNames)(router, routeInfos);\n\n        for (var i = 0; i < qpMeta.qps.length; ++i) {\n          var qp = qpMeta.qps[i];\n          var route = qp.route;\n          var controller = route.controller;\n          var presentKey = qp.urlKey in params && qp.urlKey; // Do a reverse lookup to see if the changed query\n          // param URL key corresponds to a QP property on\n          // this controller.\n\n          var value = void 0,\n              svalue = void 0;\n\n          if (changes.has(qp.urlKey)) {\n            // Value updated in/before setupController\n            value = (0, _metal.get)(controller, qp.prop);\n            svalue = route.serializeQueryParam(value, qp.urlKey, qp.type);\n          } else {\n            if (presentKey) {\n              svalue = params[presentKey];\n\n              if (svalue !== undefined) {\n                value = route.deserializeQueryParam(svalue, qp.urlKey, qp.type);\n              }\n            } else {\n              // No QP provided; use default value.\n              svalue = qp.serializedDefaultValue;\n              value = copyDefaultValue(qp.defaultValue);\n            }\n          }\n\n          controller._qpDelegate = (0, _metal.get)(route, '_qp.states.inactive');\n          var thisQueryParamChanged = svalue !== qp.serializedValue;\n\n          if (thisQueryParamChanged) {\n            if (transition.queryParamsOnly && replaceUrl !== false) {\n              var options = route._optionsForQueryParam(qp);\n\n              var replaceConfigValue = (0, _metal.get)(options, 'replace');\n\n              if (replaceConfigValue) {\n                replaceUrl = true;\n              } else if (replaceConfigValue === false) {\n                // Explicit pushState wins over any other replaceStates.\n                replaceUrl = false;\n              }\n            }\n\n            (0, _metal.set)(controller, qp.prop, value);\n            qpUpdated = true;\n          } // Stash current serialized value of controller.\n\n\n          qp.serializedValue = svalue;\n          var thisQueryParamHasDefaultValue = qp.serializedDefaultValue === svalue;\n\n          if (!thisQueryParamHasDefaultValue || transition._keepDefaultQueryParamValues) {\n            finalParams.push({\n              value: svalue,\n              visible: true,\n              key: presentKey || qp.urlKey\n            });\n          }\n        } // Some QPs have been updated, and those changes need to be propogated\n        // immediately. Eventually, we should work on making this async somehow.\n\n\n        if (qpUpdated === true) {\n          (0, _metal.flushAsyncObservers)(false);\n        }\n\n        if (replaceUrl) {\n          transition.method('replace');\n        }\n\n        qpMeta.qps.forEach(qp => {\n          var routeQpMeta = (0, _metal.get)(qp.route, '_qp');\n          var finalizedController = qp.route.controller;\n          finalizedController['_qpDelegate'] = (0, _metal.get)(routeQpMeta, 'states.active');\n        });\n\n        router._qpUpdates.clear();\n\n        return;\n      }\n\n    }\n  });\n  var ROUTER_EVENT_DEPRECATIONS;\n  _exports.ROUTER_EVENT_DEPRECATIONS = ROUTER_EVENT_DEPRECATIONS;\n\n  if (_deprecatedFeatures.ROUTER_EVENTS) {\n    _exports.ROUTER_EVENT_DEPRECATIONS = ROUTER_EVENT_DEPRECATIONS = {\n      on(name) {\n        this._super(...arguments);\n\n        var hasDidTransition = name === 'didTransition';\n        var hasWillTransition = name === 'willTransition';\n\n        if (hasDidTransition) {\n          (true && !(false) && (0, _debug.deprecate)('You attempted to listen to the \"didTransition\" event which is deprecated. Please inject the router service and listen to the \"routeDidChange\" event.', false, {\n            id: 'deprecate-router-events',\n            until: '4.0.0',\n            url: 'https://emberjs.com/deprecations/v3.x#toc_deprecate-router-events'\n          }));\n        }\n\n        if (hasWillTransition) {\n          (true && !(false) && (0, _debug.deprecate)('You attempted to listen to the \"willTransition\" event which is deprecated. Please inject the router service and listen to the \"routeWillChange\" event.', false, {\n            id: 'deprecate-router-events',\n            until: '4.0.0',\n            url: 'https://emberjs.com/deprecations/v3.x#toc_deprecate-router-events'\n          }));\n        }\n      }\n\n    };\n    Route.reopen(ROUTER_EVENT_DEPRECATIONS, {\n      _paramsFor(routeName, params) {\n        var transition = this._router._routerMicrolib.activeTransition;\n\n        if (transition !== undefined) {\n          return this.paramsFor(routeName);\n        }\n\n        return params;\n      }\n\n    });\n  }\n\n  (0, _runtime.setFrameworkClass)(Route);\n  var _default = Route;\n  _exports.default = _default;\n});","define(\"@ember/-internals/routing/lib/system/router\", [\"exports\", \"@ember/-internals/metal\", \"@ember/-internals/owner\", \"@ember/-internals/runtime\", \"@ember/debug\", \"@ember/deprecated-features\", \"@ember/error\", \"@ember/polyfills\", \"@ember/runloop\", \"@ember/-internals/routing/lib/location/api\", \"@ember/-internals/routing/lib/utils\", \"@ember/-internals/routing/lib/system/dsl\", \"@ember/-internals/routing/lib/system/route\", \"@ember/-internals/routing/lib/system/router_state\", \"router_js\"], function (_exports, _metal, _owner, _runtime, _debug, _deprecatedFeatures, _error2, _polyfills, _runloop, _api, _utils, _dsl, _route, _router_state, _router_js) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.triggerEvent = triggerEvent;\n  _exports.default = void 0;\n\n  function defaultDidTransition(infos) {\n    updatePaths(this);\n\n    this._cancelSlowTransitionTimer();\n\n    this.notifyPropertyChange('url');\n    this.set('currentState', this.targetState); // Put this in the runloop so url will be accurate. Seems\n    // less surprising than didTransition being out of sync.\n\n    (0, _runloop.once)(this, this.trigger, 'didTransition');\n\n    if (true\n    /* DEBUG */\n    ) {\n      if ((0, _metal.get)(this, 'namespace').LOG_TRANSITIONS) {\n        // eslint-disable-next-line no-console\n        console.log(`Transitioned into '${EmberRouter._routePath(infos)}'`);\n      }\n    }\n  }\n\n  function defaultWillTransition(oldInfos, newInfos, transition) {\n    (0, _runloop.once)(this, this.trigger, 'willTransition', transition);\n\n    if (true\n    /* DEBUG */\n    ) {\n      if ((0, _metal.get)(this, 'namespace').LOG_TRANSITIONS) {\n        // eslint-disable-next-line no-console\n        console.log(`Preparing to transition from '${EmberRouter._routePath(oldInfos)}' to '${EmberRouter._routePath(newInfos)}'`);\n      }\n    }\n  }\n\n  function K() {\n    return this;\n  }\n\n  var {\n    slice\n  } = Array.prototype;\n  /**\n    The `EmberRouter` class manages the application state and URLs. Refer to\n    the [routing guide](https://guides.emberjs.com/release/routing/) for documentation.\n  \n    @class EmberRouter\n    @extends EmberObject\n    @uses Evented\n    @public\n  */\n\n  class EmberRouter extends _runtime.Object {\n    constructor() {\n      super(...arguments);\n      this.currentURL = null;\n      this.currentRouteName = null;\n      this.currentPath = null;\n      this.currentRoute = null;\n      this._qpCache = Object.create(null);\n      this._qpUpdates = new Set();\n      this._queuedQPChanges = {};\n      this._toplevelView = null;\n      this._handledErrors = new Set();\n      this._engineInstances = Object.create(null);\n      this._engineInfoByRoute = Object.create(null);\n      this.currentState = null;\n      this.targetState = null;\n\n      this._resetQueuedQueryParameterChanges();\n    }\n\n    _initRouterJs() {\n      var location = (0, _metal.get)(this, 'location');\n      var router = this;\n      var owner = (0, _owner.getOwner)(this);\n      var seen = Object.create(null);\n\n      class PrivateRouter extends _router_js.default {\n        getRoute(name) {\n          var routeName = name;\n          var routeOwner = owner;\n          var engineInfo = router._engineInfoByRoute[routeName];\n\n          if (engineInfo) {\n            var engineInstance = router._getEngineInstance(engineInfo);\n\n            routeOwner = engineInstance;\n            routeName = engineInfo.localFullName;\n          }\n\n          var fullRouteName = `route:${routeName}`;\n          var route = routeOwner.lookup(fullRouteName);\n\n          if (seen[name]) {\n            return route;\n          }\n\n          seen[name] = true;\n\n          if (!route) {\n            var DefaultRoute = routeOwner.factoryFor('route:basic').class;\n            routeOwner.register(fullRouteName, DefaultRoute.extend());\n            route = routeOwner.lookup(fullRouteName);\n\n            if (true\n            /* DEBUG */\n            ) {\n              if ((0, _metal.get)(router, 'namespace.LOG_ACTIVE_GENERATION')) {\n                (0, _debug.info)(`generated -> ${fullRouteName}`, {\n                  fullName: fullRouteName\n                });\n              }\n            }\n          }\n\n          route._setRouteName(routeName);\n\n          if (engineInfo && !(0, _route.hasDefaultSerialize)(route)) {\n            throw new Error('Defining a custom serialize method on an Engine route is not supported.');\n          }\n\n          return route;\n        }\n\n        getSerializer(name) {\n          var engineInfo = router._engineInfoByRoute[name]; // If this is not an Engine route, we fall back to the handler for serialization\n\n          if (!engineInfo) {\n            return;\n          }\n\n          return engineInfo.serializeMethod || _route.defaultSerialize;\n        }\n\n        updateURL(path) {\n          (0, _runloop.once)(() => {\n            location.setURL(path);\n            (0, _metal.set)(router, 'currentURL', path);\n          });\n        }\n\n        didTransition(infos) {\n          if (_deprecatedFeatures.ROUTER_EVENTS) {\n            if (router.didTransition !== defaultDidTransition) {\n              (true && !(false) && (0, _debug.deprecate)('You attempted to override the \"didTransition\" method which is deprecated. Please inject the router service and listen to the \"routeDidChange\" event.', false, {\n                id: 'deprecate-router-events',\n                until: '4.0.0',\n                url: 'https://emberjs.com/deprecations/v3.x#toc_deprecate-router-events'\n              }));\n            }\n          }\n\n          router.didTransition(infos);\n        }\n\n        willTransition(oldInfos, newInfos, transition) {\n          if (_deprecatedFeatures.ROUTER_EVENTS) {\n            if (router.willTransition !== defaultWillTransition) {\n              (true && !(false) && (0, _debug.deprecate)('You attempted to override the \"willTransition\" method which is deprecated. Please inject the router service and listen to the \"routeWillChange\" event.', false, {\n                id: 'deprecate-router-events',\n                until: '4.0.0',\n                url: 'https://emberjs.com/deprecations/v3.x#toc_deprecate-router-events'\n              }));\n            }\n          }\n\n          router.willTransition(oldInfos, newInfos, transition);\n        }\n\n        triggerEvent(routeInfos, ignoreFailure, name, args) {\n          return triggerEvent.bind(router)(routeInfos, ignoreFailure, name, args);\n        }\n\n        routeWillChange(transition) {\n          router.trigger('routeWillChange', transition);\n        }\n\n        routeDidChange(transition) {\n          router.set('currentRoute', transition.to);\n          (0, _runloop.once)(() => {\n            router.trigger('routeDidChange', transition);\n          });\n        }\n\n        transitionDidError(error, transition) {\n          if (error.wasAborted || transition.isAborted) {\n            // If the error was a transition erorr or the transition aborted\n            // log the abort.\n            return (0, _router_js.logAbort)(transition);\n          } else {\n            // Otherwise trigger the \"error\" event to attempt an intermediate\n            // transition into an error substate\n            transition.trigger(false, 'error', error.error, transition, error.route);\n\n            if (router._isErrorHandled(error.error)) {\n              // If we handled the error with a substate just roll the state back on\n              // the transition and send the \"routeDidChange\" event for landing on\n              // the error substate and return the error.\n              transition.rollback();\n              this.routeDidChange(transition);\n              return error.error;\n            } else {\n              // If it was not handled, abort the transition completely and return\n              // the error.\n              transition.abort();\n              return error.error;\n            }\n          }\n        }\n\n        _triggerWillChangeContext() {\n          return router;\n        }\n\n        _triggerWillLeave() {\n          return router;\n        }\n\n        replaceURL(url) {\n          if (location.replaceURL) {\n            var doReplaceURL = () => {\n              location.replaceURL(url);\n              (0, _metal.set)(router, 'currentURL', url);\n            };\n\n            (0, _runloop.once)(doReplaceURL);\n          } else {\n            this.updateURL(url);\n          }\n        }\n\n      }\n\n      var routerMicrolib = this._routerMicrolib = new PrivateRouter();\n      var dslCallbacks = this.constructor.dslCallbacks || [K];\n\n      var dsl = this._buildDSL();\n\n      dsl.route('application', {\n        path: '/',\n        resetNamespace: true,\n        overrideNameAssertion: true\n      }, function () {\n        for (var i = 0; i < dslCallbacks.length; i++) {\n          dslCallbacks[i].call(this);\n        }\n      });\n\n      if (true\n      /* DEBUG */\n      ) {\n        if ((0, _metal.get)(this, 'namespace.LOG_TRANSITIONS_INTERNAL')) {\n          routerMicrolib.log = console.log.bind(console); // eslint-disable-line no-console\n        }\n      }\n\n      routerMicrolib.map(dsl.generate());\n    }\n\n    _buildDSL() {\n      var enableLoadingSubstates = this._hasModuleBasedResolver();\n\n      var router = this;\n      var owner = (0, _owner.getOwner)(this);\n      var options = {\n        enableLoadingSubstates,\n\n        resolveRouteMap(name) {\n          return owner.factoryFor(`route-map:${name}`);\n        },\n\n        addRouteForEngine(name, engineInfo) {\n          if (!router._engineInfoByRoute[name]) {\n            router._engineInfoByRoute[name] = engineInfo;\n          }\n        }\n\n      };\n      return new _dsl.default(null, options);\n    }\n    /*\n      Resets all pending query parameter changes.\n      Called after transitioning to a new route\n      based on query parameter changes.\n    */\n\n\n    _resetQueuedQueryParameterChanges() {\n      this._queuedQPChanges = {};\n    }\n\n    _hasModuleBasedResolver() {\n      var owner = (0, _owner.getOwner)(this);\n\n      if (!owner) {\n        return false;\n      }\n\n      var resolver = (0, _metal.get)(owner, 'application.__registry__.resolver.moduleBasedResolver');\n      return Boolean(resolver);\n    }\n    /**\n      Initializes the current router instance and sets up the change handling\n      event listeners used by the instances `location` implementation.\n         A property named `initialURL` will be used to determine the initial URL.\n      If no value is found `/` will be used.\n         @method startRouting\n      @private\n    */\n\n\n    startRouting() {\n      var initialURL = (0, _metal.get)(this, 'initialURL');\n\n      if (this.setupRouter()) {\n        if (initialURL === undefined) {\n          initialURL = (0, _metal.get)(this, 'location').getURL();\n        }\n\n        var initialTransition = this.handleURL(initialURL);\n\n        if (initialTransition && initialTransition.error) {\n          throw initialTransition.error;\n        }\n      }\n    }\n\n    setupRouter() {\n      this._setupLocation();\n\n      var location = (0, _metal.get)(this, 'location'); // Allow the Location class to cancel the router setup while it refreshes\n      // the page\n\n      if ((0, _metal.get)(location, 'cancelRouterSetup')) {\n        return false;\n      }\n\n      this._initRouterJs();\n\n      location.onUpdateURL(url => {\n        this.handleURL(url);\n      });\n      return true;\n    }\n\n    _setOutlets() {\n      // This is triggered async during Route#willDestroy.\n      // If the router is also being destroyed we do not want to\n      // to create another this._toplevelView (and leak the renderer)\n      if (this.isDestroying || this.isDestroyed) {\n        return;\n      }\n\n      var routeInfos = this._routerMicrolib.currentRouteInfos;\n      var route;\n      var defaultParentState;\n      var liveRoutes = null;\n\n      if (!routeInfos) {\n        return;\n      }\n\n      for (var i = 0; i < routeInfos.length; i++) {\n        route = routeInfos[i].route;\n\n        var connections = _route.ROUTE_CONNECTIONS.get(route);\n\n        var ownState = void 0;\n\n        for (var j = 0; j < connections.length; j++) {\n          var appended = appendLiveRoute(liveRoutes, defaultParentState, connections[j]);\n          liveRoutes = appended.liveRoutes;\n\n          if (appended.ownState.render.name === route.routeName || appended.ownState.render.outlet === 'main') {\n            ownState = appended.ownState;\n          }\n        }\n\n        if (connections.length === 0) {\n          ownState = representEmptyRoute(liveRoutes, defaultParentState, route);\n        }\n\n        defaultParentState = ownState;\n      } // when a transitionTo happens after the validation phase\n      // during the initial transition _setOutlets is called\n      // when no routes are active. However, it will get called\n      // again with the correct values during the next turn of\n      // the runloop\n\n\n      if (!liveRoutes) {\n        return;\n      }\n\n      if (!this._toplevelView) {\n        var owner = (0, _owner.getOwner)(this);\n        var OutletView = owner.factoryFor('view:-outlet');\n        this._toplevelView = OutletView.create();\n\n        this._toplevelView.setOutletState(liveRoutes);\n\n        var instance = owner.lookup('-application-instance:main');\n        instance.didCreateRootView(this._toplevelView);\n      } else {\n        this._toplevelView.setOutletState(liveRoutes);\n      }\n    }\n\n    handleURL(url) {\n      // Until we have an ember-idiomatic way of accessing #hashes, we need to\n      // remove it because router.js doesn't know how to handle it.\n      var _url = url.split(/#(.+)?/)[0];\n      return this._doURLTransition('handleURL', _url);\n    }\n\n    _doURLTransition(routerJsMethod, url) {\n      var transition = this._routerMicrolib[routerJsMethod](url || '/');\n\n      didBeginTransition(transition, this);\n      return transition;\n    }\n    /**\n      Transition the application into another route. The route may\n      be either a single route or route path:\n         See [transitionTo](/ember/release/classes/Route/methods/transitionTo?anchor=transitionTo) for more info.\n         @method transitionTo\n      @param {String} name the name of the route or a URL\n      @param {...Object} models the model(s) or identifier(s) to be used while\n        transitioning to the route.\n      @param {Object} [options] optional hash with a queryParams property\n        containing a mapping of query parameters\n      @return {Transition} the transition object associated with this\n        attempted transition\n      @public\n    */\n\n\n    transitionTo(...args) {\n      if ((0, _utils.resemblesURL)(args[0])) {\n        (true && !(!this.isDestroying && !this.isDestroyed) && (0, _debug.assert)(`A transition was attempted from '${this.currentRouteName}' to '${args[0]}' but the application instance has already been destroyed.`, !this.isDestroying && !this.isDestroyed));\n        return this._doURLTransition('transitionTo', args[0]);\n      }\n\n      var {\n        routeName,\n        models,\n        queryParams\n      } = (0, _utils.extractRouteArgs)(args);\n      (true && !(!this.isDestroying && !this.isDestroyed) && (0, _debug.assert)(`A transition was attempted from '${this.currentRouteName}' to '${routeName}' but the application instance has already been destroyed.`, !this.isDestroying && !this.isDestroyed));\n      return this._doTransition(routeName, models, queryParams);\n    }\n\n    intermediateTransitionTo(name, ...args) {\n      this._routerMicrolib.intermediateTransitionTo(name, ...args);\n\n      updatePaths(this);\n\n      if (true\n      /* DEBUG */\n      ) {\n        var infos = this._routerMicrolib.currentRouteInfos;\n\n        if ((0, _metal.get)(this, 'namespace').LOG_TRANSITIONS) {\n          // eslint-disable-next-line no-console\n          console.log(`Intermediate-transitioned into '${EmberRouter._routePath(infos)}'`);\n        }\n      }\n    }\n\n    replaceWith(...args) {\n      return this.transitionTo(...args).method('replace');\n    }\n\n    generate(name, ...args) {\n      var url = this._routerMicrolib.generate(name, ...args);\n\n      return this.location.formatURL(url);\n    }\n    /**\n      Determines if the supplied route is currently active.\n         @method isActive\n      @param routeName\n      @return {Boolean}\n      @private\n    */\n\n\n    isActive(routeName) {\n      return this._routerMicrolib.isActive(routeName);\n    }\n    /**\n      An alternative form of `isActive` that doesn't require\n      manual concatenation of the arguments into a single\n      array.\n         @method isActiveIntent\n      @param routeName\n      @param models\n      @param queryParams\n      @return {Boolean}\n      @private\n      @since 1.7.0\n    */\n\n\n    isActiveIntent(routeName, models, queryParams) {\n      return this.currentState.isActiveIntent(routeName, models, queryParams);\n    }\n\n    send(name, ...args) {\n      /*name, context*/\n      this._routerMicrolib.trigger(name, ...args);\n    }\n    /**\n      Does this router instance have the given route.\n         @method hasRoute\n      @return {Boolean}\n      @private\n    */\n\n\n    hasRoute(route) {\n      return this._routerMicrolib.hasRoute(route);\n    }\n    /**\n      Resets the state of the router by clearing the current route\n      handlers and deactivating them.\n         @private\n      @method reset\n     */\n\n\n    reset() {\n      if (this._routerMicrolib) {\n        this._routerMicrolib.reset();\n      }\n    }\n\n    willDestroy() {\n      if (this._toplevelView) {\n        this._toplevelView.destroy();\n\n        this._toplevelView = null;\n      }\n\n      this._super(...arguments);\n\n      this.reset();\n      var instances = this._engineInstances;\n\n      for (var name in instances) {\n        for (var id in instances[name]) {\n          (0, _runloop.run)(instances[name][id], 'destroy');\n        }\n      }\n    }\n    /*\n      Called when an active route's query parameter has changed.\n      These changes are batched into a runloop run and trigger\n      a single transition.\n    */\n\n\n    _activeQPChanged(queryParameterName, newValue) {\n      this._queuedQPChanges[queryParameterName] = newValue;\n      (0, _runloop.once)(this, this._fireQueryParamTransition);\n    }\n\n    _updatingQPChanged(queryParameterName) {\n      this._qpUpdates.add(queryParameterName);\n    }\n    /*\n      Triggers a transition to a route based on query parameter changes.\n      This is called once per runloop, to batch changes.\n         e.g.\n         if these methods are called in succession:\n      this._activeQPChanged('foo', '10');\n        // results in _queuedQPChanges = { foo: '10' }\n      this._activeQPChanged('bar', false);\n        // results in _queuedQPChanges = { foo: '10', bar: false }\n         _queuedQPChanges will represent both of these changes\n      and the transition using `transitionTo` will be triggered\n      once.\n    */\n\n\n    _fireQueryParamTransition() {\n      this.transitionTo({\n        queryParams: this._queuedQPChanges\n      });\n\n      this._resetQueuedQueryParameterChanges();\n    }\n\n    _setupLocation() {\n      var location = this.location;\n      var rootURL = this.rootURL;\n      var owner = (0, _owner.getOwner)(this);\n\n      if ('string' === typeof location && owner) {\n        var resolvedLocation = owner.lookup(`location:${location}`);\n\n        if (resolvedLocation !== undefined) {\n          location = (0, _metal.set)(this, 'location', resolvedLocation);\n        } else {\n          // Allow for deprecated registration of custom location API's\n          var options = {\n            implementation: location\n          };\n          location = (0, _metal.set)(this, 'location', _api.default.create(options));\n        }\n      }\n\n      if (location !== null && typeof location === 'object') {\n        if (rootURL) {\n          (0, _metal.set)(location, 'rootURL', rootURL);\n        } // Allow the location to do any feature detection, such as AutoLocation\n        // detecting history support. This gives it a chance to set its\n        // `cancelRouterSetup` property which aborts routing.\n\n\n        if (typeof location.detect === 'function') {\n          location.detect();\n        } // ensure that initState is called AFTER the rootURL is set on\n        // the location instance\n\n\n        if (typeof location.initState === 'function') {\n          location.initState();\n        }\n      }\n    }\n    /**\n      Serializes the given query params according to their QP meta information.\n         @private\n      @method _serializeQueryParams\n      @param {Arrray<RouteInfo>} routeInfos\n      @param {Object} queryParams\n      @return {Void}\n    */\n\n\n    _serializeQueryParams(routeInfos, queryParams) {\n      forEachQueryParam(this, routeInfos, queryParams, (key, value, qp) => {\n        if (qp) {\n          delete queryParams[key];\n          queryParams[qp.urlKey] = qp.route.serializeQueryParam(value, qp.urlKey, qp.type);\n        } else if (value === undefined) {\n          return; // We don't serialize undefined values\n        } else {\n          queryParams[key] = this._serializeQueryParam(value, (0, _runtime.typeOf)(value));\n        }\n      });\n    }\n    /**\n      Serializes the value of a query parameter based on a type\n         @private\n      @method _serializeQueryParam\n      @param {Object} value\n      @param {String} type\n    */\n\n\n    _serializeQueryParam(value, type) {\n      if (value === null || value === undefined) {\n        return value;\n      } else if (type === 'array') {\n        return JSON.stringify(value);\n      }\n\n      return `${value}`;\n    }\n    /**\n      Deserializes the given query params according to their QP meta information.\n         @private\n      @method _deserializeQueryParams\n      @param {Array<RouteInfo>} routeInfos\n      @param {Object} queryParams\n      @return {Void}\n    */\n\n\n    _deserializeQueryParams(routeInfos, queryParams) {\n      forEachQueryParam(this, routeInfos, queryParams, (key, value, qp) => {\n        // If we don't have QP meta info for a given key, then we do nothing\n        // because all values will be treated as strings\n        if (qp) {\n          delete queryParams[key];\n          queryParams[qp.prop] = qp.route.deserializeQueryParam(value, qp.urlKey, qp.type);\n        }\n      });\n    }\n    /**\n      Deserializes the value of a query parameter based on a default type\n         @private\n      @method _deserializeQueryParam\n      @param {Object} value\n      @param {String} defaultType\n    */\n\n\n    _deserializeQueryParam(value, defaultType) {\n      if (value === null || value === undefined) {\n        return value;\n      } else if (defaultType === 'boolean') {\n        return value === 'true';\n      } else if (defaultType === 'number') {\n        return Number(value).valueOf();\n      } else if (defaultType === 'array') {\n        return (0, _runtime.A)(JSON.parse(value));\n      }\n\n      return value;\n    }\n    /**\n      Removes (prunes) any query params with default values from the given QP\n      object. Default values are determined from the QP meta information per key.\n         @private\n      @method _pruneDefaultQueryParamValues\n      @param {Array<RouteInfo>} routeInfos\n      @param {Object} queryParams\n      @return {Void}\n    */\n\n\n    _pruneDefaultQueryParamValues(routeInfos, queryParams) {\n      var qps = this._queryParamsFor(routeInfos);\n\n      for (var key in queryParams) {\n        var qp = qps.map[key];\n\n        if (qp && qp.serializedDefaultValue === queryParams[key]) {\n          delete queryParams[key];\n        }\n      }\n    }\n\n    _doTransition(_targetRouteName, models, _queryParams, _keepDefaultQueryParamValues) {\n      var targetRouteName = _targetRouteName || (0, _utils.getActiveTargetName)(this._routerMicrolib);\n\n      (true && !(Boolean(targetRouteName) && this._routerMicrolib.hasRoute(targetRouteName)) && (0, _debug.assert)(`The route ${targetRouteName} was not found`, Boolean(targetRouteName) && this._routerMicrolib.hasRoute(targetRouteName)));\n      var queryParams = {};\n\n      this._processActiveTransitionQueryParams(targetRouteName, models, queryParams, _queryParams);\n\n      (0, _polyfills.assign)(queryParams, _queryParams);\n\n      this._prepareQueryParams(targetRouteName, models, queryParams, Boolean(_keepDefaultQueryParamValues));\n\n      var transition = this._routerMicrolib.transitionTo(targetRouteName, ...models, {\n        queryParams\n      });\n\n      didBeginTransition(transition, this);\n      return transition;\n    }\n\n    _processActiveTransitionQueryParams(targetRouteName, models, queryParams, _queryParams) {\n      // merge in any queryParams from the active transition which could include\n      // queryParams from the url on initial load.\n      if (!this._routerMicrolib.activeTransition) {\n        return;\n      }\n\n      var unchangedQPs = {};\n      var qpUpdates = this._qpUpdates;\n      var params = this._routerMicrolib.activeTransition[_router_js.QUERY_PARAMS_SYMBOL];\n\n      for (var key in params) {\n        if (!qpUpdates.has(key)) {\n          unchangedQPs[key] = params[key];\n        }\n      } // We need to fully scope queryParams so that we can create one object\n      // that represents both passed-in queryParams and ones that aren't changed\n      // from the active transition.\n\n\n      this._fullyScopeQueryParams(targetRouteName, models, _queryParams);\n\n      this._fullyScopeQueryParams(targetRouteName, models, unchangedQPs);\n\n      (0, _polyfills.assign)(queryParams, unchangedQPs);\n    }\n    /**\n      Prepares the query params for a URL or Transition. Restores any undefined QP\n      keys/values, serializes all values, and then prunes any default values.\n         @private\n      @method _prepareQueryParams\n      @param {String} targetRouteName\n      @param {Array<Object>} models\n      @param {Object} queryParams\n      @param {boolean} keepDefaultQueryParamValues\n      @return {Void}\n    */\n\n\n    _prepareQueryParams(targetRouteName, models, queryParams, _fromRouterService) {\n      var state = calculatePostTransitionState(this, targetRouteName, models);\n\n      this._hydrateUnsuppliedQueryParams(state, queryParams, Boolean(_fromRouterService));\n\n      this._serializeQueryParams(state.routeInfos, queryParams);\n\n      if (!_fromRouterService) {\n        this._pruneDefaultQueryParamValues(state.routeInfos, queryParams);\n      }\n    }\n    /**\n      Returns the meta information for the query params of a given route. This\n      will be overridden to allow support for lazy routes.\n         @private\n      @method _getQPMeta\n      @param {RouteInfo} routeInfo\n      @return {Object}\n    */\n\n\n    _getQPMeta(routeInfo) {\n      var route = routeInfo.route;\n      return route && (0, _metal.get)(route, '_qp');\n    }\n    /**\n      Returns a merged query params meta object for a given set of routeInfos.\n      Useful for knowing what query params are available for a given route hierarchy.\n         @private\n      @method _queryParamsFor\n      @param {Array<RouteInfo>} routeInfos\n      @return {Object}\n     */\n\n\n    _queryParamsFor(routeInfos) {\n      var routeInfoLength = routeInfos.length;\n      var leafRouteName = routeInfos[routeInfoLength - 1].name;\n      var cached = this._qpCache[leafRouteName];\n\n      if (cached !== undefined) {\n        return cached;\n      }\n\n      var shouldCache = true;\n      var map = {};\n      var qps = [];\n      var qpsByUrlKey = true\n      /* DEBUG */\n      ? {} : null;\n      var qpMeta;\n      var qp;\n      var urlKey;\n      var qpOther;\n\n      for (var i = 0; i < routeInfoLength; ++i) {\n        qpMeta = this._getQPMeta(routeInfos[i]);\n\n        if (!qpMeta) {\n          shouldCache = false;\n          continue;\n        } // Loop over each QP to make sure we don't have any collisions by urlKey\n\n\n        for (var _i = 0; _i < qpMeta.qps.length; _i++) {\n          qp = qpMeta.qps[_i];\n\n          if (true\n          /* DEBUG */\n          ) {\n            urlKey = qp.urlKey;\n            qpOther = qpsByUrlKey[urlKey];\n\n            if (qpOther && qpOther.controllerName !== qp.controllerName) {\n              (true && !(false) && (0, _debug.assert)(`You're not allowed to have more than one controller property map to the same query param key, but both \\`${qpOther.scopedPropertyName}\\` and \\`${qp.scopedPropertyName}\\` map to \\`${urlKey}\\`. You can fix this by mapping one of the controller properties to a different query param key via the \\`as\\` config option, e.g. \\`${qpOther.prop}: { as: \\'other-${qpOther.prop}\\' }\\``, false));\n            }\n\n            qpsByUrlKey[urlKey] = qp;\n          }\n\n          qps.push(qp);\n        }\n\n        (0, _polyfills.assign)(map, qpMeta.map);\n      }\n\n      var finalQPMeta = {\n        qps,\n        map\n      };\n\n      if (shouldCache) {\n        this._qpCache[leafRouteName] = finalQPMeta;\n      }\n\n      return finalQPMeta;\n    }\n    /**\n      Maps all query param keys to their fully scoped property name of the form\n      `controllerName:propName`.\n         @private\n      @method _fullyScopeQueryParams\n      @param {String} leafRouteName\n      @param {Array<Object>} contexts\n      @param {Object} queryParams\n      @return {Void}\n    */\n\n\n    _fullyScopeQueryParams(leafRouteName, contexts, queryParams) {\n      var state = calculatePostTransitionState(this, leafRouteName, contexts);\n      var routeInfos = state.routeInfos;\n      var qpMeta;\n\n      for (var i = 0, len = routeInfos.length; i < len; ++i) {\n        qpMeta = this._getQPMeta(routeInfos[i]);\n\n        if (!qpMeta) {\n          continue;\n        }\n\n        var qp = void 0;\n        var presentProp = void 0;\n\n        for (var j = 0, qpLen = qpMeta.qps.length; j < qpLen; ++j) {\n          qp = qpMeta.qps[j];\n          presentProp = qp.prop in queryParams && qp.prop || qp.scopedPropertyName in queryParams && qp.scopedPropertyName || qp.urlKey in queryParams && qp.urlKey;\n\n          if (presentProp) {\n            if (presentProp !== qp.scopedPropertyName) {\n              queryParams[qp.scopedPropertyName] = queryParams[presentProp];\n              delete queryParams[presentProp];\n            }\n          }\n        }\n      }\n    }\n    /**\n      Hydrates (adds/restores) any query params that have pre-existing values into\n      the given queryParams hash. This is what allows query params to be \"sticky\"\n      and restore their last known values for their scope.\n         @private\n      @method _hydrateUnsuppliedQueryParams\n      @param {TransitionState} state\n      @param {Object} queryParams\n      @return {Void}\n    */\n\n\n    _hydrateUnsuppliedQueryParams(state, queryParams, _fromRouterService) {\n      var routeInfos = state.routeInfos;\n      var appCache = this._bucketCache;\n      var qpMeta;\n      var qp;\n      var presentProp;\n\n      for (var i = 0; i < routeInfos.length; ++i) {\n        qpMeta = this._getQPMeta(routeInfos[i]);\n\n        if (!qpMeta) {\n          continue;\n        }\n\n        for (var j = 0, qpLen = qpMeta.qps.length; j < qpLen; ++j) {\n          qp = qpMeta.qps[j];\n          presentProp = qp.prop in queryParams && qp.prop || qp.scopedPropertyName in queryParams && qp.scopedPropertyName || qp.urlKey in queryParams && qp.urlKey;\n          (true && !(function () {\n            if (qp.urlKey === presentProp) {\n              return true;\n            }\n\n            if (_fromRouterService && presentProp !== false && qp.urlKey !== qp.prop) {\n              // assumptions (mainly from current transitionTo_test):\n              // - this is only supposed to be run when there is an alias to a query param and the alias is used to set the param\n              // - when there is no alias: qp.urlKey == qp.prop\n              return false;\n            }\n\n            return true;\n          }()) && (0, _debug.assert)(`You passed the \\`${presentProp}\\` query parameter during a transition into ${qp.route.routeName}, please update to ${qp.urlKey}`, function () {\n            if (qp.urlKey === presentProp) {\n              return true;\n            }\n\n            if (_fromRouterService && presentProp !== false && qp.urlKey !== qp.prop) {\n              return false;\n            }\n\n            return true;\n          }()));\n\n          if (presentProp) {\n            if (presentProp !== qp.scopedPropertyName) {\n              queryParams[qp.scopedPropertyName] = queryParams[presentProp];\n              delete queryParams[presentProp];\n            }\n          } else {\n            var cacheKey = (0, _utils.calculateCacheKey)(qp.route.fullRouteName, qp.parts, state.params);\n            queryParams[qp.scopedPropertyName] = appCache.lookup(cacheKey, qp.prop, qp.defaultValue);\n          }\n        }\n      }\n    }\n\n    _scheduleLoadingEvent(transition, originRoute) {\n      this._cancelSlowTransitionTimer();\n\n      this._slowTransitionTimer = (0, _runloop.scheduleOnce)('routerTransitions', this, '_handleSlowTransition', transition, originRoute);\n    }\n\n    _handleSlowTransition(transition, originRoute) {\n      if (!this._routerMicrolib.activeTransition) {\n        // Don't fire an event if we've since moved on from\n        // the transition that put us in a loading state.\n        return;\n      }\n\n      var targetState = new _router_state.default(this, this._routerMicrolib, this._routerMicrolib.activeTransition[_router_js.STATE_SYMBOL]);\n      this.set('targetState', targetState);\n      transition.trigger(true, 'loading', transition, originRoute);\n    }\n\n    _cancelSlowTransitionTimer() {\n      if (this._slowTransitionTimer) {\n        (0, _runloop.cancel)(this._slowTransitionTimer);\n      }\n\n      this._slowTransitionTimer = null;\n    } // These three helper functions are used to ensure errors aren't\n    // re-raised if they're handled in a route's error action.\n\n\n    _markErrorAsHandled(error) {\n      this._handledErrors.add(error);\n    }\n\n    _isErrorHandled(error) {\n      return this._handledErrors.has(error);\n    }\n\n    _clearHandledError(error) {\n      this._handledErrors.delete(error);\n    }\n\n    _getEngineInstance({\n      name,\n      instanceId,\n      mountPoint\n    }) {\n      var engineInstances = this._engineInstances;\n\n      if (!engineInstances[name]) {\n        engineInstances[name] = Object.create(null);\n      }\n\n      var engineInstance = engineInstances[name][instanceId];\n\n      if (!engineInstance) {\n        var owner = (0, _owner.getOwner)(this);\n        (true && !(owner.hasRegistration(`engine:${name}`)) && (0, _debug.assert)(`You attempted to mount the engine '${name}' in your router map, but the engine can not be found.`, owner.hasRegistration(`engine:${name}`)));\n        engineInstance = owner.buildChildEngineInstance(name, {\n          routable: true,\n          mountPoint\n        });\n        engineInstance.boot();\n        engineInstances[name][instanceId] = engineInstance;\n      }\n\n      return engineInstance;\n    }\n\n  }\n  /*\n    Helper function for iterating over routes in a set of routeInfos that are\n    at or above the given origin route. Example: if `originRoute` === 'foo.bar'\n    and the routeInfos given were for 'foo.bar.baz', then the given callback\n    will be invoked with the routes for 'foo.bar', 'foo', and 'application'\n    individually.\n  \n    If the callback returns anything other than `true`, then iteration will stop.\n  \n    @private\n    @param {Route} originRoute\n    @param {Array<RouteInfo>} routeInfos\n    @param {Function} callback\n    @return {Void}\n   */\n\n\n  function forEachRouteAbove(routeInfos, callback) {\n    for (var i = routeInfos.length - 1; i >= 0; --i) {\n      var routeInfo = routeInfos[i];\n      var route = routeInfo.route; // routeInfo.handler being `undefined` generally means either:\n      //\n      // 1. an error occurred during creation of the route in question\n      // 2. the route is across an async boundary (e.g. within an engine)\n      //\n      // In both of these cases, we cannot invoke the callback on that specific\n      // route, because it just doesn't exist...\n\n      if (route === undefined) {\n        continue;\n      }\n\n      if (callback(route, routeInfo) !== true) {\n        return;\n      }\n    }\n  } // These get invoked when an action bubbles above ApplicationRoute\n  // and are not meant to be overridable.\n\n\n  var defaultActionHandlers = {\n    willResolveModel(_routeInfos, transition, originRoute) {\n      this._scheduleLoadingEvent(transition, originRoute);\n    },\n\n    // Attempt to find an appropriate error route or substate to enter.\n    error(routeInfos, error, transition) {\n      var router = this;\n      var routeInfoWithError = routeInfos[routeInfos.length - 1];\n      forEachRouteAbove(routeInfos, (route, routeInfo) => {\n        // We don't check the leaf most routeInfo since that would\n        // technically be below where we're at in the route hierarchy.\n        if (routeInfo !== routeInfoWithError) {\n          // Check for the existence of an 'error' route.\n          var errorRouteName = findRouteStateName(route, 'error');\n\n          if (errorRouteName) {\n            router._markErrorAsHandled(error);\n\n            router.intermediateTransitionTo(errorRouteName, error);\n            return false;\n          }\n        } // Check for an 'error' substate route\n\n\n        var errorSubstateName = findRouteSubstateName(route, 'error');\n\n        if (errorSubstateName) {\n          router._markErrorAsHandled(error);\n\n          router.intermediateTransitionTo(errorSubstateName, error);\n          return false;\n        }\n\n        return true;\n      });\n      logError(error, `Error while processing route: ${transition.targetName}`);\n    },\n\n    // Attempt to find an appropriate loading route or substate to enter.\n    loading(routeInfos, transition) {\n      var router = this;\n      var routeInfoWithSlowLoading = routeInfos[routeInfos.length - 1];\n      forEachRouteAbove(routeInfos, (route, routeInfo) => {\n        // We don't check the leaf most routeInfos since that would\n        // technically be below where we're at in the route hierarchy.\n        if (routeInfo !== routeInfoWithSlowLoading) {\n          // Check for the existence of a 'loading' route.\n          var loadingRouteName = findRouteStateName(route, 'loading');\n\n          if (loadingRouteName) {\n            router.intermediateTransitionTo(loadingRouteName);\n            return false;\n          }\n        } // Check for loading substate\n\n\n        var loadingSubstateName = findRouteSubstateName(route, 'loading');\n\n        if (loadingSubstateName) {\n          router.intermediateTransitionTo(loadingSubstateName);\n          return false;\n        } // Don't bubble above pivot route.\n\n\n        return transition.pivotHandler !== route;\n      });\n    }\n\n  };\n\n  function logError(_error, initialMessage) {\n    var errorArgs = [];\n    var error;\n\n    if (_error && typeof _error === 'object' && typeof _error.errorThrown === 'object') {\n      error = _error.errorThrown;\n    } else {\n      error = _error;\n    }\n\n    if (initialMessage) {\n      errorArgs.push(initialMessage);\n    }\n\n    if (error) {\n      if (error.message) {\n        errorArgs.push(error.message);\n      }\n\n      if (error.stack) {\n        errorArgs.push(error.stack);\n      }\n\n      if (typeof error === 'string') {\n        errorArgs.push(error);\n      }\n    }\n\n    console.error(...errorArgs); //eslint-disable-line no-console\n  }\n  /**\n    Finds the name of the substate route if it exists for the given route. A\n    substate route is of the form `route_state`, such as `foo_loading`.\n  \n    @private\n    @param {Route} route\n    @param {String} state\n    @return {String}\n  */\n\n\n  function findRouteSubstateName(route, state) {\n    var owner = (0, _owner.getOwner)(route);\n    var {\n      routeName,\n      fullRouteName,\n      _router: router\n    } = route;\n    var substateName = `${routeName}_${state}`;\n    var substateNameFull = `${fullRouteName}_${state}`;\n    return routeHasBeenDefined(owner, router, substateName, substateNameFull) ? substateNameFull : '';\n  }\n  /**\n    Finds the name of the state route if it exists for the given route. A state\n    route is of the form `route.state`, such as `foo.loading`. Properly Handles\n    `application` named routes.\n  \n    @private\n    @param {Route} route\n    @param {String} state\n    @return {String}\n  */\n\n\n  function findRouteStateName(route, state) {\n    var owner = (0, _owner.getOwner)(route);\n    var {\n      routeName,\n      fullRouteName,\n      _router: router\n    } = route;\n    var stateName = routeName === 'application' ? state : `${routeName}.${state}`;\n    var stateNameFull = fullRouteName === 'application' ? state : `${fullRouteName}.${state}`;\n    return routeHasBeenDefined(owner, router, stateName, stateNameFull) ? stateNameFull : '';\n  }\n  /**\n    Determines whether or not a route has been defined by checking that the route\n    is in the Router's map and the owner has a registration for that route.\n  \n    @private\n    @param {Owner} owner\n    @param {Router} router\n    @param {String} localName\n    @param {String} fullName\n    @return {Boolean}\n  */\n\n\n  function routeHasBeenDefined(owner, router, localName, fullName) {\n    var routerHasRoute = router.hasRoute(fullName);\n    var ownerHasRoute = owner.hasRegistration(`template:${localName}`) || owner.hasRegistration(`route:${localName}`);\n    return routerHasRoute && ownerHasRoute;\n  }\n\n  function triggerEvent(routeInfos, ignoreFailure, name, args) {\n    if (!routeInfos) {\n      if (ignoreFailure) {\n        return;\n      }\n\n      throw new _error2.default(`Can't trigger action '${name}' because your app hasn't finished transitioning into its first route. To trigger an action on destination routes during a transition, you can call \\`.send()\\` on the \\`Transition\\` object passed to the \\`model/beforeModel/afterModel\\` hooks.`);\n    }\n\n    var eventWasHandled = false;\n    var routeInfo, handler, actionHandler;\n\n    for (var i = routeInfos.length - 1; i >= 0; i--) {\n      routeInfo = routeInfos[i];\n      handler = routeInfo.route;\n      actionHandler = handler && handler.actions && handler.actions[name];\n\n      if (actionHandler) {\n        if (actionHandler.apply(handler, args) === true) {\n          eventWasHandled = true;\n        } else {\n          // Should only hit here if a non-bubbling error action is triggered on a route.\n          if (name === 'error') {\n            handler._router._markErrorAsHandled(args[0]);\n          }\n\n          return;\n        }\n      }\n    }\n\n    var defaultHandler = defaultActionHandlers[name];\n\n    if (defaultHandler) {\n      defaultHandler.apply(this, [routeInfos, ...args]);\n      return;\n    }\n\n    if (!eventWasHandled && !ignoreFailure) {\n      throw new _error2.default(`Nothing handled the action '${name}'. If you did handle the action, this error can be caused by returning true from an action handler in a controller, causing the action to bubble.`);\n    }\n  }\n\n  function calculatePostTransitionState(emberRouter, leafRouteName, contexts) {\n    var state = emberRouter._routerMicrolib.applyIntent(leafRouteName, contexts);\n\n    var {\n      routeInfos,\n      params\n    } = state;\n\n    for (var i = 0; i < routeInfos.length; ++i) {\n      var routeInfo = routeInfos[i]; // If the routeInfo is not resolved, we serialize the context into params\n\n      if (!routeInfo.isResolved) {\n        params[routeInfo.name] = routeInfo.serialize(routeInfo.context);\n      } else {\n        params[routeInfo.name] = routeInfo.params;\n      }\n    }\n\n    return state;\n  }\n\n  function updatePaths(router) {\n    var infos = router._routerMicrolib.currentRouteInfos;\n\n    if (infos.length === 0) {\n      return;\n    }\n\n    var path = EmberRouter._routePath(infos);\n\n    var currentRouteName = infos[infos.length - 1].name;\n    var currentURL = router.get('location').getURL();\n    (0, _metal.set)(router, 'currentPath', path);\n    (0, _metal.set)(router, 'currentRouteName', currentRouteName);\n    (0, _metal.set)(router, 'currentURL', currentURL);\n    var appController = (0, _owner.getOwner)(router).lookup('controller:application');\n\n    if (!appController) {\n      // appController might not exist when top-level loading/error\n      // substates have been entered since ApplicationRoute hasn't\n      // actually been entered at that point.\n      return;\n    }\n\n    if (_deprecatedFeatures.APP_CTRL_ROUTER_PROPS) {\n      if (!('currentPath' in appController)) {\n        Object.defineProperty(appController, 'currentPath', {\n          get() {\n            (true && !(false) && (0, _debug.deprecate)('Accessing `currentPath` on `controller:application` is deprecated, use the `currentPath` property on `service:router` instead.', false, {\n              id: 'application-controller.router-properties',\n              until: '4.0.0',\n              url: 'https://emberjs.com/deprecations/v3.x#toc_application-controller-router-properties'\n            }));\n            return (0, _metal.get)(router, 'currentPath');\n          }\n\n        });\n      }\n\n      (0, _metal.notifyPropertyChange)(appController, 'currentPath');\n\n      if (!('currentRouteName' in appController)) {\n        Object.defineProperty(appController, 'currentRouteName', {\n          get() {\n            (true && !(false) && (0, _debug.deprecate)('Accessing `currentRouteName` on `controller:application` is deprecated, use the `currentRouteName` property on `service:router` instead.', false, {\n              id: 'application-controller.router-properties',\n              until: '4.0.0',\n              url: 'https://emberjs.com/deprecations/v3.x#toc_application-controller-router-properties'\n            }));\n            return (0, _metal.get)(router, 'currentRouteName');\n          }\n\n        });\n      }\n\n      (0, _metal.notifyPropertyChange)(appController, 'currentRouteName');\n    }\n  }\n\n  EmberRouter.reopenClass({\n    /**\n      The `Router.map` function allows you to define mappings from URLs to routes\n      in your application. These mappings are defined within the\n      supplied callback function using `this.route`.\n         The first parameter is the name of the route which is used by default as the\n      path name as well.\n         The second parameter is the optional options hash. Available options are:\n           * `path`: allows you to provide your own path as well as mark dynamic\n          segments.\n        * `resetNamespace`: false by default; when nesting routes, ember will\n          combine the route names to form the fully-qualified route name, which is\n          used with `{{link-to}}` or manually transitioning to routes. Setting\n          `resetNamespace: true` will cause the route not to inherit from its\n          parent route's names. This is handy for preventing extremely long route names.\n          Keep in mind that the actual URL path behavior is still retained.\n         The third parameter is a function, which can be used to nest routes.\n      Nested routes, by default, will have the parent route tree's route name and\n      path prepended to it's own.\n         ```app/router.js\n      Router.map(function(){\n        this.route('post', { path: '/post/:post_id' }, function() {\n          this.route('edit');\n          this.route('comments', { resetNamespace: true }, function() {\n            this.route('new');\n          });\n        });\n      });\n      ```\n         @method map\n      @param callback\n      @public\n    */\n    map(callback) {\n      if (!this.dslCallbacks) {\n        this.dslCallbacks = [];\n        this.reopenClass({\n          dslCallbacks: this.dslCallbacks\n        });\n      }\n\n      this.dslCallbacks.push(callback);\n      return this;\n    },\n\n    _routePath(routeInfos) {\n      var path = []; // We have to handle coalescing resource names that\n      // are prefixed with their parent's names, e.g.\n      // ['foo', 'foo.bar.baz'] => 'foo.bar.baz', not 'foo.foo.bar.baz'\n\n      function intersectionMatches(a1, a2) {\n        for (var i = 0; i < a1.length; ++i) {\n          if (a1[i] !== a2[i]) {\n            return false;\n          }\n        }\n\n        return true;\n      }\n\n      var name, nameParts, oldNameParts;\n\n      for (var i = 1; i < routeInfos.length; i++) {\n        name = routeInfos[i].name;\n        nameParts = name.split('.');\n        oldNameParts = slice.call(path);\n\n        while (oldNameParts.length) {\n          if (intersectionMatches(oldNameParts, nameParts)) {\n            break;\n          }\n\n          oldNameParts.shift();\n        }\n\n        path.push(...nameParts.slice(oldNameParts.length));\n      }\n\n      return path.join('.');\n    }\n\n  });\n\n  function didBeginTransition(transition, router) {\n    var routerState = new _router_state.default(router, router._routerMicrolib, transition[_router_js.STATE_SYMBOL]);\n\n    if (!router.currentState) {\n      router.set('currentState', routerState);\n    }\n\n    router.set('targetState', routerState);\n    transition.promise = transition.catch(error => {\n      if (router._isErrorHandled(error)) {\n        router._clearHandledError(error);\n      } else {\n        throw error;\n      }\n    }, 'Transition Error');\n  }\n\n  function forEachQueryParam(router, routeInfos, queryParams, callback) {\n    var qpCache = router._queryParamsFor(routeInfos);\n\n    for (var key in queryParams) {\n      if (!queryParams.hasOwnProperty(key)) {\n        continue;\n      }\n\n      var value = queryParams[key];\n      var qp = qpCache.map[key];\n      callback(key, value, qp);\n    }\n  }\n\n  function findLiveRoute(liveRoutes, name) {\n    if (!liveRoutes) {\n      return;\n    }\n\n    var stack = [liveRoutes];\n\n    while (stack.length > 0) {\n      var test = stack.shift();\n\n      if (test.render.name === name) {\n        return test;\n      }\n\n      var outlets = test.outlets;\n\n      for (var outletName in outlets) {\n        stack.push(outlets[outletName]);\n      }\n    }\n\n    return;\n  }\n\n  function appendLiveRoute(liveRoutes, defaultParentState, renderOptions) {\n    var target;\n    var myState = {\n      render: renderOptions,\n      outlets: Object.create(null),\n      wasUsed: false\n    };\n\n    if (renderOptions.into) {\n      target = findLiveRoute(liveRoutes, renderOptions.into);\n    } else {\n      target = defaultParentState;\n    }\n\n    if (target) {\n      (0, _metal.set)(target.outlets, renderOptions.outlet, myState);\n    } else {\n      liveRoutes = myState;\n    }\n\n    return {\n      liveRoutes,\n      ownState: myState\n    };\n  }\n\n  function representEmptyRoute(liveRoutes, defaultParentState, route) {\n    // the route didn't render anything\n    var alreadyAppended = findLiveRoute(liveRoutes, route.routeName);\n\n    if (alreadyAppended) {\n      // But some other route has already rendered our default\n      // template, so that becomes the default target for any\n      // children we may have.\n      return alreadyAppended;\n    } else {\n      // Create an entry to represent our default template name,\n      // just so other routes can target it and inherit its place\n      // in the outlet hierarchy.\n      defaultParentState.outlets.main = {\n        render: {\n          name: route.routeName,\n          outlet: 'main'\n        },\n        outlets: {}\n      };\n      return defaultParentState;\n    }\n  }\n\n  EmberRouter.reopen(_runtime.Evented, {\n    /**\n      Handles updating the paths and notifying any listeners of the URL\n      change.\n         Triggers the router level `didTransition` hook.\n         For example, to notify google analytics when the route changes,\n      you could use this hook.  (Note: requires also including GA scripts, etc.)\n         ```javascript\n      import config from './config/environment';\n      import EmberRouter from '@ember/routing/router';\n      import { inject as service } from '@ember/service';\n         let Router = EmberRouter.extend({\n        location: config.locationType,\n           router: service(),\n           didTransition: function() {\n          this._super(...arguments);\n             ga('send', 'pageview', {\n            page: this.router.currentURL,\n            title: this.router.currentRouteName,\n          });\n        }\n      });\n      ```\n         @method didTransition\n      @public\n      @since 1.2.0\n    */\n    didTransition: defaultDidTransition,\n\n    /**\n      Handles notifying any listeners of an impending URL\n      change.\n         Triggers the router level `willTransition` hook.\n         @method willTransition\n      @public\n      @since 1.11.0\n    */\n    willTransition: defaultWillTransition,\n\n    /**\n     Represents the URL of the root of the application, often '/'. This prefix is\n     assumed on all routes defined on this router.\n        @property rootURL\n     @default '/'\n     @public\n    */\n    rootURL: '/',\n\n    /**\n     The `location` property determines the type of URL's that your\n     application will use.\n        The following location types are currently available:\n        * `history` - use the browser's history API to make the URLs look just like any standard URL\n     * `hash` - use `#` to separate the server part of the URL from the Ember part: `/blog/#/posts/new`\n     * `none` - do not store the Ember URL in the actual browser URL (mainly used for testing)\n     * `auto` - use the best option based on browser capabilities: `history` if possible, then `hash` if possible, otherwise `none`\n        This value is defaulted to `auto` by the `locationType` setting of `/config/environment.js`\n        @property location\n     @default 'hash'\n     @see {Location}\n     @public\n    */\n    location: 'hash',\n\n    /**\n     Represents the current URL.\n        @property url\n     @type {String}\n     @private\n    */\n    url: (0, _metal.computed)(function () {\n      var location = (0, _metal.get)(this, 'location');\n\n      if (typeof location === 'string') {\n        return undefined;\n      }\n\n      return location.getURL();\n    })\n  });\n\n  if (_deprecatedFeatures.ROUTER_EVENTS) {\n    EmberRouter.reopen(_route.ROUTER_EVENT_DEPRECATIONS);\n  }\n\n  var _default = EmberRouter;\n  _exports.default = _default;\n});","define(\"@ember/-internals/routing/lib/system/router_state\", [\"exports\", \"@ember/polyfills\", \"@ember/-internals/routing/lib/utils\"], function (_exports, _polyfills, _utils) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  class RouterState {\n    constructor(emberRouter, router, routerJsState) {\n      this.emberRouter = emberRouter;\n      this.router = router;\n      this.routerJsState = routerJsState;\n    }\n\n    isActiveIntent(routeName, models, queryParams, queryParamsMustMatch) {\n      var state = this.routerJsState;\n\n      if (!this.router.isActiveIntent(routeName, models, undefined, state)) {\n        return false;\n      }\n\n      if (queryParamsMustMatch && Object.keys(queryParams).length > 0) {\n        var visibleQueryParams = (0, _polyfills.assign)({}, queryParams);\n\n        this.emberRouter._prepareQueryParams(routeName, models, visibleQueryParams);\n\n        return (0, _utils.shallowEqual)(visibleQueryParams, state.queryParams);\n      }\n\n      return true;\n    }\n\n  }\n\n  _exports.default = RouterState;\n});","define(\"@ember/-internals/routing/lib/system/transition\", [], function () {\n  \"use strict\";\n  /**\n    A Transition is a thennable (a promise-like object) that represents\n    an attempt to transition to another route. It can be aborted, either\n    explicitly via `abort` or by attempting another transition while a\n    previous one is still underway. An aborted transition can also\n    be `retry()`d later.\n  \n    @class Transition\n    @public\n  */\n\n  /**\n    The Transition's internal promise. Calling `.then` on this property\n    is that same as calling `.then` on the Transition object itself, but\n    this property is exposed for when you want to pass around a\n    Transition's promise, but not the Transition object itself, since\n    Transition object can be externally `abort`ed, while the promise\n    cannot.\n  \n    @property promise\n    @type {Object}\n    @public\n    */\n\n  /**\n    Custom state can be stored on a Transition's `data` object.\n    This can be useful for decorating a Transition within an earlier\n    hook and shared with a later hook. Properties set on `data` will\n    be copied to new transitions generated by calling `retry` on this\n    transition.\n  \n    @property data\n    @type {Object}\n    @public\n  */\n\n  /**\n    A standard promise hook that resolves if the transition\n    succeeds and rejects if it fails/redirects/aborts.\n  \n    Forwards to the internal `promise` property which you can\n    use in situations where you want to pass around a thennable,\n    but not the Transition itself.\n  \n    @method then\n    @param {Function} onFulfilled\n    @param {Function} onRejected\n    @param {String} label optional string for labeling the promise.\n    Useful for tooling.\n    @return {Promise}\n    @public\n  */\n\n  /**\n  \n    Forwards to the internal `promise` property which you can\n    use in situations where you want to pass around a thennable,\n    but not the Transition itself.\n  \n    @method catch\n    @param {Function} onRejection\n    @param {String} label optional string for labeling the promise.\n    Useful for tooling.\n    @return {Promise}\n    @public\n  */\n\n  /**\n  \n    Forwards to the internal `promise` property which you can\n    use in situations where you want to pass around a thennable,\n    but not the Transition itself.\n  \n    @method finally\n    @param {Function} callback\n    @param {String} label optional string for labeling the promise.\n    Useful for tooling.\n    @return {Promise}\n    @public\n  */\n\n  /**\n    Aborts the Transition. Note you can also implicitly abort a transition\n    by initiating another transition while a previous one is underway.\n  \n    @method abort\n    @return {Transition} this transition\n    @public\n  */\n\n  /**\n  \n    Retries a previously-aborted transition (making sure to abort the\n    transition if it's still active). Returns a new transition that\n    represents the new attempt to transition.\n  \n    @method retry\n    @return {Transition} new transition\n    @public\n    */\n\n  /**\n  \n    Sets the URL-changing method to be employed at the end of a\n    successful transition. By default, a new Transition will just\n    use `updateURL`, but passing 'replace' to this method will\n    cause the URL to update using 'replaceWith' instead. Omitting\n    a parameter will disable the URL change, allowing for transitions\n    that don't update the URL at completion (this is also used for\n    handleURL, since the URL has already changed before the\n    transition took place).\n  \n    @method method\n    @param {String} method the type of URL-changing method to use\n      at the end of a transition. Accepted values are 'replace',\n      falsy values, or any other non-falsy value (which is\n      interpreted as an updateURL transition).\n  \n    @return {Transition} this transition\n    @public\n  */\n\n  /**\n  \n    Fires an event on the current list of resolved/resolving\n    handlers within this transition. Useful for firing events\n    on route hierarchies that haven't fully been entered yet.\n  \n    Note: This method is also aliased as `send`\n  \n    @method trigger\n    @param {Boolean} [ignoreFailure=false] a boolean specifying whether unhandled events throw an error\n    @param {String} name the name of the event to fire\n    @public\n  */\n\n  /**\n   * This property is a `RouteInfo` object that represents\n   * where the router is transitioning to. It's important\n   * to note that a `RouteInfo` is a linked list and this\n   * property represents the leafmost route.\n   * @property {null|RouteInfo|RouteInfoWithAttributes} to\n   * @public\n   */\n\n  /**\n   * This property is a `RouteInfo` object that represents\n   * where transition originated from. It's important\n   * to note that a `RouteInfo` is a linked list and this\n   * property represents the head node of the list.\n   * In the case of an initial render, `from` will be set to\n   * `null`.\n   * @property {null|RouteInfoWithAttributes} from\n   * @public\n   */\n\n  /**\n    Transitions are aborted and their promises rejected\n    when redirects occur; this method returns a promise\n    that will follow any redirects that occur and fulfill\n    with the value fulfilled by any redirecting transitions\n    that occur.\n  \n    @method followRedirects\n    @return {Promise} a promise that fulfills with the same\n      value that the final redirecting transition fulfills with\n    @public\n  */\n});","define(\"@ember/-internals/routing/lib/utils\", [\"exports\", \"@ember/-internals/metal\", \"@ember/-internals/owner\", \"@ember/error\", \"@ember/polyfills\", \"router_js\"], function (_exports, _metal, _owner, _error, _polyfills, _router_js) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.extractRouteArgs = extractRouteArgs;\n  _exports.getActiveTargetName = getActiveTargetName;\n  _exports.stashParamNames = stashParamNames;\n  _exports.calculateCacheKey = calculateCacheKey;\n  _exports.normalizeControllerQueryParams = normalizeControllerQueryParams;\n  _exports.resemblesURL = resemblesURL;\n  _exports.prefixRouteNameArg = prefixRouteNameArg;\n  _exports.shallowEqual = shallowEqual;\n  var ALL_PERIODS_REGEX = /\\./g;\n\n  function extractRouteArgs(args) {\n    args = args.slice();\n    var possibleQueryParams = args[args.length - 1];\n    var queryParams;\n\n    if (possibleQueryParams && possibleQueryParams.hasOwnProperty('queryParams')) {\n      // SAFETY: this cast is safe because we have just checked whether\n      // `possibleQueryParams` -- defined as the last item in args -- both exists\n      // and has the property `queryParams`. If either of these invariants change,\n      // ***this is unsafe and should be changed***.\n      queryParams = args.pop().queryParams;\n    } else {\n      queryParams = {};\n    } // UNSAFE: these are simply assumed as the existing behavior of the system.\n    // However, this could break if upstream refactors change it, and the types\n    // here would not be able to tell us; we would lie to everything downstream.\n\n\n    var routeName = args.shift();\n    var models = args;\n    return {\n      routeName,\n      models,\n      queryParams\n    };\n  }\n\n  function getActiveTargetName(router) {\n    var routeInfos = router.activeTransition ? router.activeTransition[_router_js.STATE_SYMBOL].routeInfos : router.state.routeInfos;\n    return routeInfos[routeInfos.length - 1].name;\n  }\n\n  function stashParamNames(router, routeInfos) {\n    if (routeInfos['_namesStashed']) {\n      return;\n    } // This helper exists because router.js/route-recognizer.js awkwardly\n    // keeps separate a routeInfo's list of parameter names depending\n    // on whether a URL transition or named transition is happening.\n    // Hopefully we can remove this in the future.\n\n\n    var targetRouteName = routeInfos[routeInfos.length - 1].name;\n\n    var recogHandlers = router._routerMicrolib.recognizer.handlersFor(targetRouteName);\n\n    var dynamicParent;\n\n    for (var i = 0; i < routeInfos.length; ++i) {\n      var routeInfo = routeInfos[i];\n      var names = recogHandlers[i].names;\n\n      if (names.length) {\n        dynamicParent = routeInfo;\n      }\n\n      routeInfo['_names'] = names;\n      var route = routeInfo.route;\n\n      route._stashNames(routeInfo, dynamicParent);\n    }\n\n    routeInfos['_namesStashed'] = true;\n  }\n\n  function _calculateCacheValuePrefix(prefix, part) {\n    // calculates the dot separated sections from prefix that are also\n    // at the start of part - which gives us the route name\n    // given : prefix = site.article.comments, part = site.article.id\n    //      - returns: site.article (use get(values[site.article], 'id') to get the dynamic part - used below)\n    // given : prefix = site.article, part = site.article.id\n    //      - returns: site.article. (use get(values[site.article], 'id') to get the dynamic part - used below)\n    var prefixParts = prefix.split('.');\n    var currPrefix = '';\n\n    for (var i = 0; i < prefixParts.length; i++) {\n      var currPart = prefixParts.slice(0, i + 1).join('.');\n\n      if (part.indexOf(currPart) !== 0) {\n        break;\n      }\n\n      currPrefix = currPart;\n    }\n\n    return currPrefix;\n  }\n  /*\n    Stolen from Controller\n  */\n\n\n  function calculateCacheKey(prefix, parts = [], values) {\n    var suffixes = '';\n\n    for (var i = 0; i < parts.length; ++i) {\n      var part = parts[i];\n\n      var cacheValuePrefix = _calculateCacheValuePrefix(prefix, part);\n\n      var value = void 0;\n\n      if (values) {\n        if (cacheValuePrefix && cacheValuePrefix in values) {\n          var partRemovedPrefix = part.indexOf(cacheValuePrefix) === 0 ? part.substr(cacheValuePrefix.length + 1) : part;\n          value = (0, _metal.get)(values[cacheValuePrefix], partRemovedPrefix);\n        } else {\n          value = (0, _metal.get)(values, part);\n        }\n      }\n\n      suffixes += `::${part}:${value}`;\n    }\n\n    return prefix + suffixes.replace(ALL_PERIODS_REGEX, '-');\n  }\n  /*\n    Controller-defined query parameters can come in three shapes:\n  \n    Array\n      queryParams: ['foo', 'bar']\n    Array of simple objects where value is an alias\n      queryParams: [\n        {\n          'foo': 'rename_foo_to_this'\n        },\n        {\n          'bar': 'call_bar_this_instead'\n        }\n      ]\n    Array of fully defined objects\n      queryParams: [\n        {\n          'foo': {\n            as: 'rename_foo_to_this'\n          },\n        }\n        {\n          'bar': {\n            as: 'call_bar_this_instead',\n            scope: 'controller'\n          }\n        }\n      ]\n  \n    This helper normalizes all three possible styles into the\n    'Array of fully defined objects' style.\n  */\n\n\n  function normalizeControllerQueryParams(queryParams) {\n    var qpMap = {};\n\n    for (var i = 0; i < queryParams.length; ++i) {\n      accumulateQueryParamDescriptors(queryParams[i], qpMap);\n    }\n\n    return qpMap;\n  }\n\n  function accumulateQueryParamDescriptors(_desc, accum) {\n    var desc = _desc;\n    var tmp;\n\n    if (typeof desc === 'string') {\n      tmp = {};\n      tmp[desc] = {\n        as: null\n      };\n      desc = tmp;\n    }\n\n    for (var key in desc) {\n      if (!desc.hasOwnProperty(key)) {\n        return;\n      }\n\n      var singleDesc = desc[key];\n\n      if (typeof singleDesc === 'string') {\n        singleDesc = {\n          as: singleDesc\n        };\n      }\n\n      tmp = accum[key] || {\n        as: null,\n        scope: 'model'\n      };\n      (0, _polyfills.assign)(tmp, singleDesc);\n      accum[key] = tmp;\n    }\n  }\n  /*\n    Check if a routeName resembles a url instead\n  \n    @private\n  */\n\n\n  function resemblesURL(str) {\n    return typeof str === 'string' && (str === '' || str[0] === '/');\n  }\n  /*\n    Returns an arguments array where the route name arg is prefixed based on the mount point\n  \n    @private\n  */\n\n\n  function prefixRouteNameArg(route, args) {\n    var routeName = args[0];\n    var owner = (0, _owner.getOwner)(route);\n    var prefix = owner.mountPoint; // only alter the routeName if it's actually referencing a route.\n\n    if (owner.routable && typeof routeName === 'string') {\n      if (resemblesURL(routeName)) {\n        throw new _error.default('Programmatic transitions by URL cannot be used within an Engine. Please use the route name instead.');\n      } else {\n        routeName = `${prefix}.${routeName}`;\n        args[0] = routeName;\n      }\n    }\n\n    return args;\n  }\n\n  function shallowEqual(a, b) {\n    var k;\n    var aCount = 0;\n    var bCount = 0;\n\n    for (k in a) {\n      if (a.hasOwnProperty(k)) {\n        if (a[k] !== b[k]) {\n          return false;\n        }\n\n        aCount++;\n      }\n    }\n\n    for (k in b) {\n      if (b.hasOwnProperty(k)) {\n        bCount++;\n      }\n    }\n\n    return aCount === bCount;\n  }\n});","define(\"@ember/-internals/runtime/index\", [\"exports\", \"@ember/-internals/runtime/lib/system/object\", \"@ember/-internals/runtime/lib/mixins/registry_proxy\", \"@ember/-internals/runtime/lib/mixins/container_proxy\", \"@ember/-internals/runtime/lib/copy\", \"@ember/-internals/runtime/lib/compare\", \"@ember/-internals/runtime/lib/is-equal\", \"@ember/-internals/runtime/lib/mixins/array\", \"@ember/-internals/runtime/lib/mixins/comparable\", \"@ember/-internals/runtime/lib/system/namespace\", \"@ember/-internals/runtime/lib/system/array_proxy\", \"@ember/-internals/runtime/lib/system/object_proxy\", \"@ember/-internals/runtime/lib/system/core_object\", \"@ember/-internals/runtime/lib/mixins/action_handler\", \"@ember/-internals/runtime/lib/mixins/copyable\", \"@ember/-internals/runtime/lib/mixins/enumerable\", \"@ember/-internals/runtime/lib/mixins/-proxy\", \"@ember/-internals/runtime/lib/mixins/observable\", \"@ember/-internals/runtime/lib/mixins/mutable_enumerable\", \"@ember/-internals/runtime/lib/mixins/target_action_support\", \"@ember/-internals/runtime/lib/mixins/evented\", \"@ember/-internals/runtime/lib/mixins/promise_proxy\", \"@ember/-internals/runtime/lib/ext/rsvp\", \"@ember/-internals/runtime/lib/type-of\", \"@ember/-internals/runtime/lib/ext/function\"], function (_exports, _object, _registry_proxy, _container_proxy, _copy, _compare, _isEqual, _array, _comparable, _namespace, _array_proxy, _object_proxy, _core_object, _action_handler, _copyable, _enumerable, _proxy, _observable, _mutable_enumerable, _target_action_support, _evented, _promise_proxy, _rsvp, _typeOf, _function) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"Object\", {\n    enumerable: true,\n    get: function () {\n      return _object.default;\n    }\n  });\n  Object.defineProperty(_exports, \"FrameworkObject\", {\n    enumerable: true,\n    get: function () {\n      return _object.FrameworkObject;\n    }\n  });\n  Object.defineProperty(_exports, \"RegistryProxyMixin\", {\n    enumerable: true,\n    get: function () {\n      return _registry_proxy.default;\n    }\n  });\n  Object.defineProperty(_exports, \"ContainerProxyMixin\", {\n    enumerable: true,\n    get: function () {\n      return _container_proxy.default;\n    }\n  });\n  Object.defineProperty(_exports, \"copy\", {\n    enumerable: true,\n    get: function () {\n      return _copy.default;\n    }\n  });\n  Object.defineProperty(_exports, \"compare\", {\n    enumerable: true,\n    get: function () {\n      return _compare.default;\n    }\n  });\n  Object.defineProperty(_exports, \"isEqual\", {\n    enumerable: true,\n    get: function () {\n      return _isEqual.default;\n    }\n  });\n  Object.defineProperty(_exports, \"Array\", {\n    enumerable: true,\n    get: function () {\n      return _array.default;\n    }\n  });\n  Object.defineProperty(_exports, \"NativeArray\", {\n    enumerable: true,\n    get: function () {\n      return _array.NativeArray;\n    }\n  });\n  Object.defineProperty(_exports, \"A\", {\n    enumerable: true,\n    get: function () {\n      return _array.A;\n    }\n  });\n  Object.defineProperty(_exports, \"MutableArray\", {\n    enumerable: true,\n    get: function () {\n      return _array.MutableArray;\n    }\n  });\n  Object.defineProperty(_exports, \"removeAt\", {\n    enumerable: true,\n    get: function () {\n      return _array.removeAt;\n    }\n  });\n  Object.defineProperty(_exports, \"uniqBy\", {\n    enumerable: true,\n    get: function () {\n      return _array.uniqBy;\n    }\n  });\n  Object.defineProperty(_exports, \"isArray\", {\n    enumerable: true,\n    get: function () {\n      return _array.isArray;\n    }\n  });\n  Object.defineProperty(_exports, \"Comparable\", {\n    enumerable: true,\n    get: function () {\n      return _comparable.default;\n    }\n  });\n  Object.defineProperty(_exports, \"Namespace\", {\n    enumerable: true,\n    get: function () {\n      return _namespace.default;\n    }\n  });\n  Object.defineProperty(_exports, \"ArrayProxy\", {\n    enumerable: true,\n    get: function () {\n      return _array_proxy.default;\n    }\n  });\n  Object.defineProperty(_exports, \"ObjectProxy\", {\n    enumerable: true,\n    get: function () {\n      return _object_proxy.default;\n    }\n  });\n  Object.defineProperty(_exports, \"CoreObject\", {\n    enumerable: true,\n    get: function () {\n      return _core_object.default;\n    }\n  });\n  Object.defineProperty(_exports, \"setFrameworkClass\", {\n    enumerable: true,\n    get: function () {\n      return _core_object.setFrameworkClass;\n    }\n  });\n  Object.defineProperty(_exports, \"ActionHandler\", {\n    enumerable: true,\n    get: function () {\n      return _action_handler.default;\n    }\n  });\n  Object.defineProperty(_exports, \"Copyable\", {\n    enumerable: true,\n    get: function () {\n      return _copyable.default;\n    }\n  });\n  Object.defineProperty(_exports, \"Enumerable\", {\n    enumerable: true,\n    get: function () {\n      return _enumerable.default;\n    }\n  });\n  Object.defineProperty(_exports, \"_ProxyMixin\", {\n    enumerable: true,\n    get: function () {\n      return _proxy.default;\n    }\n  });\n  Object.defineProperty(_exports, \"_contentFor\", {\n    enumerable: true,\n    get: function () {\n      return _proxy.contentFor;\n    }\n  });\n  Object.defineProperty(_exports, \"Observable\", {\n    enumerable: true,\n    get: function () {\n      return _observable.default;\n    }\n  });\n  Object.defineProperty(_exports, \"MutableEnumerable\", {\n    enumerable: true,\n    get: function () {\n      return _mutable_enumerable.default;\n    }\n  });\n  Object.defineProperty(_exports, \"TargetActionSupport\", {\n    enumerable: true,\n    get: function () {\n      return _target_action_support.default;\n    }\n  });\n  Object.defineProperty(_exports, \"Evented\", {\n    enumerable: true,\n    get: function () {\n      return _evented.default;\n    }\n  });\n  Object.defineProperty(_exports, \"PromiseProxyMixin\", {\n    enumerable: true,\n    get: function () {\n      return _promise_proxy.default;\n    }\n  });\n  Object.defineProperty(_exports, \"RSVP\", {\n    enumerable: true,\n    get: function () {\n      return _rsvp.default;\n    }\n  });\n  Object.defineProperty(_exports, \"onerrorDefault\", {\n    enumerable: true,\n    get: function () {\n      return _rsvp.onerrorDefault;\n    }\n  });\n  Object.defineProperty(_exports, \"typeOf\", {\n    enumerable: true,\n    get: function () {\n      return _typeOf.typeOf;\n    }\n  });\n});","define(\"@ember/-internals/runtime/lib/compare\", [\"exports\", \"@ember/-internals/runtime/lib/type-of\", \"@ember/-internals/runtime/lib/mixins/comparable\"], function (_exports, _typeOf, _comparable) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = compare;\n  var TYPE_ORDER = {\n    undefined: 0,\n    null: 1,\n    boolean: 2,\n    number: 3,\n    string: 4,\n    array: 5,\n    object: 6,\n    instance: 7,\n    function: 8,\n    class: 9,\n    date: 10\n  }; //\n  // the spaceship operator\n  //\n  //                      `. ___\n  //                     __,' __`.                _..----....____\n  //         __...--.'``;.   ,.   ;``--..__     .'    ,-._    _.-'\n  //   _..-''-------'   `'   `'   `'     O ``-''._   (,;') _,'\n  // ,'________________                          \\`-._`-','\n  //  `._              ```````````------...___   '-.._'-:\n  //     ```--.._      ,.                     ````--...__\\-.\n  //             `.--. `-` \"INFINITY IS LESS     ____    |  |`\n  //               `. `.   THAN BEYOND\"        ,'`````.  ;  ;`\n  //                 `._`.        __________   `.      \\'__/`\n  //                    `-:._____/______/___/____`.     \\  `\n  //                                |       `._    `.    \\\n  //                                `._________`-.   `.   `.___\n  //                                              SSt  `------'`\n\n  function spaceship(a, b) {\n    var diff = a - b;\n    return (diff > 0) - (diff < 0);\n  }\n  /**\n   @module @ember/utils\n  */\n\n  /**\n   Compares two javascript values and returns:\n  \n    - -1 if the first is smaller than the second,\n    - 0 if both are equal,\n    - 1 if the first is greater than the second.\n  \n    ```javascript\n    import { compare } from '@ember/utils';\n  \n    compare('hello', 'hello');  // 0\n    compare('abc', 'dfg');      // -1\n    compare(2, 1);              // 1\n    ```\n  \n   If the types of the two objects are different precedence occurs in the\n   following order, with types earlier in the list considered `<` types\n   later in the list:\n  \n    - undefined\n    - null\n    - boolean\n    - number\n    - string\n    - array\n    - object\n    - instance\n    - function\n    - class\n    - date\n  \n    ```javascript\n    import { compare } from '@ember/utils';\n  \n    compare('hello', 50);       // 1\n    compare(50, 'hello');       // -1\n    ```\n  \n   @method compare\n   @for @ember/utils\n   @static\n   @param {Object} v First value to compare\n   @param {Object} w Second value to compare\n   @return {Number} -1 if v < w, 0 if v = w and 1 if v > w.\n   @public\n  */\n\n\n  function compare(v, w) {\n    if (v === w) {\n      return 0;\n    }\n\n    var type1 = (0, _typeOf.typeOf)(v);\n    var type2 = (0, _typeOf.typeOf)(w);\n\n    if (type1 === 'instance' && _comparable.default.detect(v) && v.constructor.compare) {\n      return v.constructor.compare(v, w);\n    }\n\n    if (type2 === 'instance' && _comparable.default.detect(w) && w.constructor.compare) {\n      return w.constructor.compare(w, v) * -1;\n    }\n\n    var res = spaceship(TYPE_ORDER[type1], TYPE_ORDER[type2]);\n\n    if (res !== 0) {\n      return res;\n    } // types are equal - so we have to check values now\n\n\n    switch (type1) {\n      case 'boolean':\n      case 'number':\n        return spaceship(v, w);\n\n      case 'string':\n        return spaceship(v.localeCompare(w), 0);\n\n      case 'array':\n        {\n          var vLen = v.length;\n          var wLen = w.length;\n          var len = Math.min(vLen, wLen);\n\n          for (var i = 0; i < len; i++) {\n            var r = compare(v[i], w[i]);\n\n            if (r !== 0) {\n              return r;\n            }\n          } // all elements are equal now\n          // shorter array should be ordered first\n\n\n          return spaceship(vLen, wLen);\n        }\n\n      case 'instance':\n        if (_comparable.default.detect(v)) {\n          return v.compare(v, w);\n        }\n\n        return 0;\n\n      case 'date':\n        return spaceship(v.getTime(), w.getTime());\n\n      default:\n        return 0;\n    }\n  }\n});","define(\"@ember/-internals/runtime/lib/copy\", [\"exports\", \"@ember/debug\", \"@ember/-internals/runtime/lib/system/object\", \"@ember/-internals/runtime/lib/mixins/copyable\"], function (_exports, _debug, _object, _copyable) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = copy;\n\n  /**\n   @module @ember/object\n  */\n  function _copy(obj, deep, seen, copies) {\n    // primitive data types are immutable, just return them.\n    if (typeof obj !== 'object' || obj === null) {\n      return obj;\n    }\n\n    var ret, loc; // avoid cyclical loops\n\n    if (deep && (loc = seen.indexOf(obj)) >= 0) {\n      return copies[loc];\n    }\n\n    if (deep) {\n      seen.push(obj);\n    } // IMPORTANT: this specific test will detect a native array only. Any other\n    // object will need to implement Copyable.\n\n\n    if (Array.isArray(obj)) {\n      ret = obj.slice();\n\n      if (deep) {\n        copies.push(ret);\n        loc = ret.length;\n\n        while (--loc >= 0) {\n          ret[loc] = _copy(ret[loc], deep, seen, copies);\n        }\n      }\n    } else if (_copyable.default.detect(obj)) {\n      ret = obj.copy(deep, seen, copies);\n\n      if (deep) {\n        copies.push(ret);\n      }\n    } else if (obj instanceof Date) {\n      ret = new Date(obj.getTime());\n\n      if (deep) {\n        copies.push(ret);\n      }\n    } else {\n      (true && !(!(obj instanceof _object.default) || _copyable.default.detect(obj)) && (0, _debug.assert)('Cannot clone an EmberObject that does not implement Copyable', !(obj instanceof _object.default) || _copyable.default.detect(obj)));\n      ret = {};\n\n      if (deep) {\n        copies.push(ret);\n      }\n\n      var key;\n\n      for (key in obj) {\n        // support Null prototype\n        if (!Object.prototype.hasOwnProperty.call(obj, key)) {\n          continue;\n        } // Prevents browsers that don't respect non-enumerability from\n        // copying internal Ember properties\n\n\n        if (key.substring(0, 2) === '__') {\n          continue;\n        }\n\n        ret[key] = deep ? _copy(obj[key], deep, seen, copies) : obj[key];\n      }\n    }\n\n    return ret;\n  }\n  /**\n    Creates a shallow copy of the passed object. A deep copy of the object is\n    returned if the optional `deep` argument is `true`.\n  \n    If the passed object implements the `Copyable` interface, then this\n    function will delegate to the object's `copy()` method and return the\n    result. See `Copyable` for further details.\n  \n    For primitive values (which are immutable in JavaScript), the passed object\n    is simply returned.\n  \n    @method copy\n    @deprecated Use 'ember-copy' addon instead\n    @static\n    @for @ember/object/internals\n    @param {Object} obj The object to clone\n    @param {Boolean} [deep=false] If true, a deep copy of the object is made.\n    @return {Object} The copied object\n    @public\n  */\n\n\n  function copy(obj, deep) {\n    (true && !(false) && (0, _debug.deprecate)('Use ember-copy addon instead of copy method and Copyable mixin.', false, {\n      id: 'ember-runtime.deprecate-copy-copyable',\n      until: '4.0.0',\n      url: 'https://emberjs.com/deprecations/v3.x/#toc_ember-runtime-deprecate-copy-copyable'\n    })); // fast paths\n\n    if ('object' !== typeof obj || obj === null) {\n      return obj; // can't copy primitives\n    }\n\n    if (!Array.isArray(obj) && _copyable.default.detect(obj)) {\n      return obj.copy(deep);\n    }\n\n    return _copy(obj, deep, deep ? [] : null, deep ? [] : null);\n  }\n});","define(\"@ember/-internals/runtime/lib/ext/function\", [\"@ember/-internals/environment\", \"@ember/-internals/metal\", \"@ember/debug\", \"@ember/deprecated-features\"], function (_environment, _metal, _debug, _deprecatedFeatures) {\n  \"use strict\";\n\n  /**\n  @module ember\n  */\n  if (_deprecatedFeatures.FUNCTION_PROTOTYPE_EXTENSIONS && _environment.ENV.EXTEND_PROTOTYPES.Function) {\n    Object.defineProperties(Function.prototype, {\n      /**\n        The `property` extension of Javascript's Function prototype is available\n        when `EmberENV.EXTEND_PROTOTYPES` or `EmberENV.EXTEND_PROTOTYPES.Function` is\n        `true`, which is the default.\n         Computed properties allow you to treat a function like a property:\n         ```app/utils/president.js\n        import EmberObject from '@ember/object';\n         export default EmberObject.extend({\n          firstName: '',\n          lastName:  '',\n           fullName: function() {\n            return this.get('firstName') + ' ' + this.get('lastName');\n          }.property() // Call this flag to mark the function as a property\n        });\n        ```\n         ```javascript\n        let president = President.create({\n          firstName: 'Barack',\n          lastName: 'Obama'\n        });\n         president.get('fullName'); // 'Barack Obama'\n        ```\n         Treating a function like a property is useful because they can work with\n        bindings, just like any other property.\n         Many computed properties have dependencies on other properties. For\n        example, in the above example, the `fullName` property depends on\n        `firstName` and `lastName` to determine its value. You can tell Ember\n        about these dependencies like this:\n         ```app/utils/president.js\n        import EmberObject from '@ember/object';\n         export default EmberObject.extend({\n          firstName: '',\n          lastName:  '',\n           fullName: function() {\n            return this.get('firstName') + ' ' + this.get('lastName');\n             // Tell Ember.js that this computed property depends on firstName\n            // and lastName\n          }.property('firstName', 'lastName')\n        });\n        ```\n         Make sure you list these dependencies so Ember knows when to update\n        bindings that connect to a computed property. Changing a dependency\n        will not immediately trigger an update of the computed property, but\n        will instead clear the cache so that it is updated when the next `get`\n        is called on the property.\n         See [ComputedProperty](/ember/release/classes/ComputedProperty), [@ember/object/computed](/ember/release/classes/@ember%2Fobject%2Fcomputed).\n         @method property\n        @for Function\n        @public\n      */\n      property: {\n        configurable: true,\n        enumerable: false,\n        writable: true,\n        value: function () {\n          (true && !(false) && (0, _debug.deprecate)(`Function prototype extensions have been deprecated, please migrate from function(){}.property('bar') to computed('bar', function() {}).`, false, {\n            id: 'function-prototype-extensions.property',\n            until: '4.0.0',\n            url: 'https://deprecations.emberjs.com/v3.x#toc_function-prototype-extensions-property'\n          }));\n          return (0, _metal.computed)(...arguments, this);\n        }\n      },\n\n      /**\n        The `observes` extension of Javascript's Function prototype is available\n        when `EmberENV.EXTEND_PROTOTYPES` or `EmberENV.EXTEND_PROTOTYPES.Function` is\n        true, which is the default.\n         You can observe property changes simply by adding the `observes`\n        call to the end of your method declarations in classes that you write.\n        For example:\n         ```javascript\n        import EmberObject from '@ember/object';\n         EmberObject.extend({\n          valueObserver: function() {\n            // Executes whenever the \"value\" property changes\n          }.observes('value')\n        });\n        ```\n         In the future this method may become asynchronous.\n         See `observer`.\n         @method observes\n        @for Function\n        @public\n      */\n      observes: {\n        configurable: true,\n        enumerable: false,\n        writable: true,\n        value: function () {\n          (true && !(false) && (0, _debug.deprecate)(`Function prototype extensions have been deprecated, please migrate from function(){}.observes('foo') to observer('foo', function() {}).`, false, {\n            id: 'function-prototype-extensions.observes',\n            until: '4.0.0',\n            url: 'https://deprecations.emberjs.com/v3.x#toc_function-prototype-extensions-observes'\n          }));\n          return (0, _metal.observer)(...arguments, this);\n        }\n      },\n\n      /**\n        The `on` extension of Javascript's Function prototype is available\n        when `EmberENV.EXTEND_PROTOTYPES` or `EmberENV.EXTEND_PROTOTYPES.Function` is\n        true, which is the default.\n         You can listen for events simply by adding the `on` call to the end of\n        your method declarations in classes or mixins that you write. For example:\n         ```javascript\n        import Mixin from '@ember/mixin';\n         Mixin.create({\n          doSomethingWithElement: function() {\n            // Executes whenever the \"didInsertElement\" event fires\n          }.on('didInsertElement')\n        });\n        ```\n         See `@ember/object/evented/on`.\n         @method on\n        @for Function\n        @public\n      */\n      on: {\n        configurable: true,\n        enumerable: false,\n        writable: true,\n        value: function () {\n          (true && !(false) && (0, _debug.deprecate)(`Function prototype extensions have been deprecated, please migrate from function(){}.on('foo') to on('foo', function() {}).`, false, {\n            id: 'function-prototype-extensions.on',\n            until: '4.0.0',\n            url: 'https://deprecations.emberjs.com/v3.x#toc_function-prototype-extensions-on'\n          }));\n          return (0, _metal.on)(...arguments, this);\n        }\n      }\n    });\n  }\n});","define(\"@ember/-internals/runtime/lib/ext/rsvp\", [\"exports\", \"rsvp\", \"@ember/runloop\", \"@ember/-internals/error-handling\", \"@ember/debug\"], function (_exports, RSVP, _runloop, _errorHandling, _debug) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.onerrorDefault = onerrorDefault;\n  _exports.default = void 0;\n  RSVP.configure('async', (callback, promise) => {\n    _runloop.backburner.schedule('actions', null, callback, promise);\n  });\n  RSVP.configure('after', cb => {\n    _runloop.backburner.schedule(_runloop._rsvpErrorQueue, null, cb);\n  });\n  RSVP.on('error', onerrorDefault);\n\n  function onerrorDefault(reason) {\n    var error = errorFor(reason);\n\n    if (error) {\n      var overrideDispatch = (0, _errorHandling.getDispatchOverride)();\n\n      if (overrideDispatch) {\n        overrideDispatch(error);\n      } else {\n        throw error;\n      }\n    }\n  }\n\n  function errorFor(reason) {\n    if (!reason) return;\n\n    if (reason.errorThrown) {\n      return unwrapErrorThrown(reason);\n    }\n\n    if (reason.name === 'UnrecognizedURLError') {\n      (true && !(false) && (0, _debug.assert)(`The URL '${reason.message}' did not match any routes in your application`, false));\n      return;\n    }\n\n    if (reason.name === 'TransitionAborted') {\n      return;\n    }\n\n    return reason;\n  }\n\n  function unwrapErrorThrown(reason) {\n    var error = reason.errorThrown;\n\n    if (typeof error === 'string') {\n      error = new Error(error);\n    }\n\n    Object.defineProperty(error, '__reason_with_error_thrown__', {\n      value: reason,\n      enumerable: false\n    });\n    return error;\n  }\n\n  var _default = RSVP;\n  _exports.default = _default;\n});","define(\"@ember/-internals/runtime/lib/is-equal\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = isEqual;\n\n  /**\n   @module @ember/utils\n  */\n\n  /**\n    Compares two objects, returning true if they are equal.\n  \n    ```javascript\n    import { isEqual } from '@ember/utils';\n  \n    isEqual('hello', 'hello');                   // true\n    isEqual(1, 2);                               // false\n    ```\n  \n    `isEqual` is a more specific comparison than a triple equal comparison.\n    It will call the `isEqual` instance method on the objects being\n    compared, allowing finer control over when objects should be considered\n    equal to each other.\n  \n    ```javascript\n    import { isEqual } from '@ember/utils';\n    import EmberObject from '@ember/object';\n  \n    let Person = EmberObject.extend({\n      isEqual(other) { return this.ssn == other.ssn; }\n    });\n  \n    let personA = Person.create({name: 'Muhammad Ali', ssn: '123-45-6789'});\n    let personB = Person.create({name: 'Cassius Clay', ssn: '123-45-6789'});\n  \n    isEqual(personA, personB); // true\n    ```\n  \n    Due to the expense of array comparisons, collections will never be equal to\n    each other even if each of their items are equal to each other.\n  \n    ```javascript\n    import { isEqual } from '@ember/utils';\n  \n    isEqual([4, 2], [4, 2]);                     // false\n    ```\n  \n    @method isEqual\n    @for @ember/utils\n    @static\n    @param {Object} a first object to compare\n    @param {Object} b second object to compare\n    @return {Boolean}\n    @public\n  */\n  function isEqual(a, b) {\n    if (a && typeof a.isEqual === 'function') {\n      return a.isEqual(b);\n    }\n\n    if (a instanceof Date && b instanceof Date) {\n      return a.getTime() === b.getTime();\n    }\n\n    return a === b;\n  }\n});","define(\"@ember/-internals/runtime/lib/mixins/-proxy\", [\"exports\", \"@ember/-internals/meta\", \"@ember/-internals/metal\", \"@ember/-internals/utils\", \"@ember/debug\", \"@glimmer/validator\"], function (_exports, _meta, _metal, _utils, _debug, _validator) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.contentFor = contentFor;\n  _exports.default = void 0;\n\n  /**\n  @module ember\n  */\n  function contentFor(proxy) {\n    var content = (0, _metal.get)(proxy, 'content');\n    (0, _validator.updateTag)((0, _metal.tagForObject)(proxy), (0, _metal.tagForObject)(content));\n    return content;\n  }\n  /**\n    `Ember.ProxyMixin` forwards all properties not defined by the proxy itself\n    to a proxied `content` object.  See ObjectProxy for more details.\n  \n    @class ProxyMixin\n    @namespace Ember\n    @private\n  */\n\n\n  var _default = _metal.Mixin.create({\n    /**\n      The object whose properties will be forwarded.\n       @property content\n      @type {unknown}\n      @default null\n      @public\n    */\n    content: null,\n\n    init() {\n      this._super(...arguments);\n\n      (0, _utils.setProxy)(this);\n      (0, _metal.tagForObject)(this);\n    },\n\n    willDestroy() {\n      this.set('content', null);\n\n      this._super(...arguments);\n    },\n\n    isTruthy: (0, _metal.computed)('content', function () {\n      return Boolean((0, _metal.get)(this, 'content'));\n    }),\n\n    [_metal.CUSTOM_TAG_FOR](key) {\n      var tag = (0, _validator.tagFor)(this, key);\n\n      if (true\n      /* DEBUG */\n      ) {\n        // TODO: Replace this with something more first class for tracking tags in DEBUG\n        tag._propertyKey = key;\n      }\n\n      if (key in this) {\n        if (true\n        /* DEBUG */\n        ) {\n          (0, _utils.setupMandatorySetter)(tag, this, key);\n        }\n\n        return tag;\n      } else {\n        return (0, _validator.combine)([tag, ...(0, _metal.getChainTagsForKey)(this, `content.${key}`)]);\n      }\n    },\n\n    unknownProperty(key) {\n      var content = contentFor(this);\n\n      if (content) {\n        return (0, _metal.get)(content, key);\n      }\n    },\n\n    setUnknownProperty(key, value) {\n      var m = (0, _meta.meta)(this);\n\n      if (m.isInitializing() || m.isPrototypeMeta(this)) {\n        // if marked as prototype or object is initializing then just\n        // defineProperty rather than delegate\n        (0, _metal.defineProperty)(this, key, null, value);\n        return value;\n      }\n\n      var content = contentFor(this);\n      (true && !(content) && (0, _debug.assert)(`Cannot delegate set('${key}', ${value}) to the \\'content\\' property of object proxy ${this}: its 'content' is undefined.`, content));\n      return (0, _metal.set)(content, key, value);\n    }\n\n  });\n\n  _exports.default = _default;\n});","define(\"@ember/-internals/runtime/lib/mixins/action_handler\", [\"exports\", \"@ember/-internals/metal\", \"@ember/debug\"], function (_exports, _metal, _debug) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n  @module ember\n  */\n\n  /**\n    `Ember.ActionHandler` is available on some familiar classes including\n    `Route`, `Component`, and `Controller`.\n    (Internally the mixin is used by `Ember.CoreView`, `Ember.ControllerMixin`,\n    and `Route` and available to the above classes through\n    inheritance.)\n  \n    @class ActionHandler\n    @namespace Ember\n    @private\n  */\n  var ActionHandler = _metal.Mixin.create({\n    mergedProperties: ['actions'],\n\n    /**\n      The collection of functions, keyed by name, available on this\n      `ActionHandler` as action targets.\n       These functions will be invoked when a matching `{{action}}` is triggered\n      from within a template and the application's current route is this route.\n       Actions can also be invoked from other parts of your application\n      via `ActionHandler#send`.\n       The `actions` hash will inherit action handlers from\n      the `actions` hash defined on extended parent classes\n      or mixins rather than just replace the entire hash, e.g.:\n       ```app/mixins/can-display-banner.js\n      import Mixin from '@ember/mixin';\n       export default Mixin.create({\n        actions: {\n          displayBanner(msg) {\n            // ...\n          }\n        }\n      });\n      ```\n       ```app/routes/welcome.js\n      import Route from '@ember/routing/route';\n      import CanDisplayBanner from '../mixins/can-display-banner';\n       export default Route.extend(CanDisplayBanner, {\n        actions: {\n          playMusic() {\n            // ...\n          }\n        }\n      });\n       // `WelcomeRoute`, when active, will be able to respond\n      // to both actions, since the actions hash is merged rather\n      // then replaced when extending mixins / parent classes.\n      this.send('displayBanner');\n      this.send('playMusic');\n      ```\n       Within a Controller, Route or Component's action handler,\n      the value of the `this` context is the Controller, Route or\n      Component object:\n       ```app/routes/song.js\n      import Route from '@ember/routing/route';\n       export default Route.extend({\n        actions: {\n          myAction() {\n            this.controllerFor(\"song\");\n            this.transitionTo(\"other.route\");\n            ...\n          }\n        }\n      });\n      ```\n       It is also possible to call `this._super(...arguments)` from within an\n      action handler if it overrides a handler defined on a parent\n      class or mixin:\n       Take for example the following routes:\n       ```app/mixins/debug-route.js\n      import Mixin from '@ember/mixin';\n       export default Mixin.create({\n        actions: {\n          debugRouteInformation() {\n            console.debug(\"It's a-me, console.debug!\");\n          }\n        }\n      });\n      ```\n       ```app/routes/annoying-debug.js\n      import Route from '@ember/routing/route';\n      import DebugRoute from '../mixins/debug-route';\n       export default Route.extend(DebugRoute, {\n        actions: {\n          debugRouteInformation() {\n            // also call the debugRouteInformation of mixed in DebugRoute\n            this._super(...arguments);\n             // show additional annoyance\n            window.alert(...);\n          }\n        }\n      });\n      ```\n       ## Bubbling\n       By default, an action will stop bubbling once a handler defined\n      on the `actions` hash handles it. To continue bubbling the action,\n      you must return `true` from the handler:\n       ```app/router.js\n      Router.map(function() {\n        this.route(\"album\", function() {\n          this.route(\"song\");\n        });\n      });\n      ```\n       ```app/routes/album.js\n      import Route from '@ember/routing/route';\n       export default Route.extend({\n        actions: {\n          startPlaying: function() {\n          }\n        }\n      });\n      ```\n       ```app/routes/album-song.js\n      import Route from '@ember/routing/route';\n       export default Route.extend({\n        actions: {\n          startPlaying() {\n            // ...\n             if (actionShouldAlsoBeTriggeredOnParentRoute) {\n              return true;\n            }\n          }\n        }\n      });\n      ```\n       @property actions\n      @type Object\n      @default null\n      @public\n    */\n\n    /**\n      Triggers a named action on the `ActionHandler`. Any parameters\n      supplied after the `actionName` string will be passed as arguments\n      to the action target function.\n       If the `ActionHandler` has its `target` property set, actions may\n      bubble to the `target`. Bubbling happens when an `actionName` can\n      not be found in the `ActionHandler`'s `actions` hash or if the\n      action target function returns `true`.\n       Example\n       ```app/routes/welcome.js\n      import Route from '@ember/routing/route';\n       export default Route.extend({\n        actions: {\n          playTheme() {\n            this.send('playMusic', 'theme.mp3');\n          },\n          playMusic(track) {\n            // ...\n          }\n        }\n      });\n      ```\n       @method send\n      @param {String} actionName The action to trigger\n      @param {*} context a context to send with the action\n      @public\n    */\n    send(actionName, ...args) {\n      (true && !(!this.isDestroying && !this.isDestroyed) && (0, _debug.assert)(`Attempted to call .send() with the action '${actionName}' on the destroyed object '${this}'.`, !this.isDestroying && !this.isDestroyed));\n\n      if (this.actions && this.actions[actionName]) {\n        var shouldBubble = this.actions[actionName].apply(this, args) === true;\n\n        if (!shouldBubble) {\n          return;\n        }\n      }\n\n      var target = (0, _metal.get)(this, 'target');\n\n      if (target) {\n        (true && !(typeof target.send === 'function') && (0, _debug.assert)(`The \\`target\\` for ${this} (${target}) does not have a \\`send\\` method`, typeof target.send === 'function'));\n        target.send(...arguments);\n      }\n    }\n\n  });\n\n  var _default = ActionHandler;\n  _exports.default = _default;\n});","define(\"@ember/-internals/runtime/lib/mixins/array\", [\"exports\", \"@ember/-internals/metal\", \"@ember/-internals/utils\", \"@ember/debug\", \"@ember/-internals/runtime/lib/mixins/enumerable\", \"@ember/-internals/runtime/lib/compare\", \"@ember/-internals/environment\", \"@ember/-internals/runtime/lib/mixins/observable\", \"@ember/-internals/runtime/lib/mixins/mutable_enumerable\", \"@ember/-internals/runtime/lib/type-of\"], function (_exports, _metal, _utils, _debug, _enumerable, _compare, _environment, _observable, _mutable_enumerable, _typeOf) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.uniqBy = uniqBy;\n  _exports.removeAt = removeAt;\n  _exports.isArray = isArray;\n  _exports.default = _exports.MutableArray = _exports.NativeArray = _exports.A = void 0;\n\n  /**\n  @module @ember/array\n  */\n  var EMPTY_ARRAY = Object.freeze([]);\n\n  var identityFunction = item => item;\n\n  function uniqBy(array, key = identityFunction) {\n    (true && !(isArray(array)) && (0, _debug.assert)(`first argument passed to \\`uniqBy\\` should be array`, isArray(array)));\n    var ret = A();\n    var seen = new Set();\n    var getter = typeof key === 'function' ? key : item => (0, _metal.get)(item, key);\n    array.forEach(item => {\n      var val = getter(item);\n\n      if (!seen.has(val)) {\n        seen.add(val);\n        ret.push(item);\n      }\n    });\n    return ret;\n  }\n\n  function iter(key, value) {\n    var valueProvided = arguments.length === 2;\n    return valueProvided ? item => value === (0, _metal.get)(item, key) : item => Boolean((0, _metal.get)(item, key));\n  }\n\n  function findIndex(array, predicate, startAt) {\n    var len = array.length;\n\n    for (var index = startAt; index < len; index++) {\n      var item = (0, _metal.objectAt)(array, index);\n\n      if (predicate(item, index, array)) {\n        return index;\n      }\n    }\n\n    return -1;\n  }\n\n  function find(array, callback, target) {\n    var predicate = callback.bind(target);\n    var index = findIndex(array, predicate, 0);\n    return index === -1 ? undefined : (0, _metal.objectAt)(array, index);\n  }\n\n  function any(array, callback, target) {\n    var predicate = callback.bind(target);\n    return findIndex(array, predicate, 0) !== -1;\n  }\n\n  function every(array, callback, target) {\n    var cb = callback.bind(target);\n\n    var predicate = (item, index, array) => !cb(item, index, array);\n\n    return findIndex(array, predicate, 0) === -1;\n  }\n\n  function indexOf(array, val, startAt = 0, withNaNCheck) {\n    var len = array.length;\n\n    if (startAt < 0) {\n      startAt += len;\n    } // SameValueZero comparison (NaN !== NaN)\n\n\n    var predicate = withNaNCheck && val !== val ? item => item !== item : item => item === val;\n    return findIndex(array, predicate, startAt);\n  }\n\n  function removeAt(array, index, len = 1) {\n    (true && !(index > -1 && index < array.length) && (0, _debug.assert)(`\\`removeAt\\` index provided is out of range`, index > -1 && index < array.length));\n    (0, _metal.replace)(array, index, len, EMPTY_ARRAY);\n    return array;\n  }\n\n  function insertAt(array, index, item) {\n    (true && !(index > -1 && index <= array.length) && (0, _debug.assert)(`\\`insertAt\\` index provided is out of range`, index > -1 && index <= array.length));\n    (0, _metal.replace)(array, index, 0, [item]);\n    return item;\n  }\n  /**\n    Returns true if the passed object is an array or Array-like.\n  \n    Objects are considered Array-like if any of the following are true:\n  \n      - the object is a native Array\n      - the object has an objectAt property\n      - the object is an Object, and has a length property\n  \n    Unlike `typeOf` this method returns true even if the passed object is\n    not formally an array but appears to be array-like (i.e. implements `Array`)\n  \n    ```javascript\n    import { isArray } from '@ember/array';\n    import ArrayProxy from '@ember/array/proxy';\n  \n    isArray();                                      // false\n    isArray([]);                                    // true\n    isArray(ArrayProxy.create({ content: [] }));    // true\n    ```\n  \n    @method isArray\n    @static\n    @for @ember/array\n    @param {Object} obj The object to test\n    @return {Boolean} true if the passed object is an array or Array-like\n    @public\n  */\n\n\n  function isArray(_obj) {\n    var obj = _obj;\n\n    if (true\n    /* DEBUG */\n    && _utils.HAS_NATIVE_PROXY && typeof _obj === 'object' && _obj !== null) {\n      var possibleProxyContent = _obj[_metal.PROXY_CONTENT];\n\n      if (possibleProxyContent !== undefined) {\n        obj = possibleProxyContent;\n      }\n    }\n\n    if (!obj || obj.setInterval) {\n      return false;\n    }\n\n    if (Array.isArray(obj) || ArrayMixin.detect(obj)) {\n      return true;\n    }\n\n    var type = (0, _typeOf.typeOf)(obj);\n\n    if ('array' === type) {\n      return true;\n    }\n\n    var length = obj.length;\n\n    if (typeof length === 'number' && length === length && 'object' === type) {\n      return true;\n    }\n\n    return false;\n  }\n  /*\n    This allows us to define computed properties that are not enumerable.\n    The primary reason this is important is that when `NativeArray` is\n    applied to `Array.prototype` we need to ensure that we do not add _any_\n    new enumerable properties.\n  */\n\n\n  function nonEnumerableComputed() {\n    var property = (0, _metal.computed)(...arguments);\n    property.enumerable = false;\n    return property;\n  }\n\n  function mapBy(key) {\n    return this.map(next => (0, _metal.get)(next, key));\n  } // ..........................................................\n  // ARRAY\n  //\n\n  /**\n    This mixin implements Observer-friendly Array-like behavior. It is not a\n    concrete implementation, but it can be used up by other classes that want\n    to appear like arrays.\n  \n    For example, ArrayProxy is a concrete class that can be instantiated to\n    implement array-like behavior. This class uses the Array Mixin by way of\n    the MutableArray mixin, which allows observable changes to be made to the\n    underlying array.\n  \n    This mixin defines methods specifically for collections that provide\n    index-ordered access to their contents. When you are designing code that\n    needs to accept any kind of Array-like object, you should use these methods\n    instead of Array primitives because these will properly notify observers of\n    changes to the array.\n  \n    Although these methods are efficient, they do add a layer of indirection to\n    your application so it is a good idea to use them only when you need the\n    flexibility of using both true JavaScript arrays and \"virtual\" arrays such\n    as controllers and collections.\n  \n    You can use the methods defined in this module to access and modify array\n    contents in an observable-friendly way. You can also be notified whenever\n    the membership of an array changes by using `.observes('myArray.[]')`.\n  \n    To support `EmberArray` in your own class, you must override two\n    primitives to use it: `length()` and `objectAt()`.\n  \n    @class EmberArray\n    @uses Enumerable\n    @since Ember 0.9.0\n    @public\n  */\n\n\n  var ArrayMixin = _metal.Mixin.create(_enumerable.default, {\n    [_utils.EMBER_ARRAY]: true,\n\n    /**\n      __Required.__ You must implement this method to apply this mixin.\n       Your array must support the `length` property. Your replace methods should\n      set this property whenever it changes.\n       @property {Number} length\n      @public\n    */\n\n    /**\n      Returns the object at the given `index`. If the given `index` is negative\n      or is greater or equal than the array length, returns `undefined`.\n       This is one of the primitives you must implement to support `EmberArray`.\n      If your object supports retrieving the value of an array item using `get()`\n      (i.e. `myArray.get(0)`), then you do not need to implement this method\n      yourself.\n       ```javascript\n      let arr = ['a', 'b', 'c', 'd'];\n       arr.objectAt(0);   // 'a'\n      arr.objectAt(3);   // 'd'\n      arr.objectAt(-1);  // undefined\n      arr.objectAt(4);   // undefined\n      arr.objectAt(5);   // undefined\n      ```\n       @method objectAt\n      @param {Number} idx The index of the item to return.\n      @return {*} item at index or undefined\n      @public\n    */\n\n    /**\n      This returns the objects at the specified indexes, using `objectAt`.\n       ```javascript\n      let arr = ['a', 'b', 'c', 'd'];\n       arr.objectsAt([0, 1, 2]);  // ['a', 'b', 'c']\n      arr.objectsAt([2, 3, 4]);  // ['c', 'd', undefined]\n      ```\n       @method objectsAt\n      @param {Array} indexes An array of indexes of items to return.\n      @return {Array}\n      @public\n     */\n    objectsAt(indexes) {\n      return indexes.map(idx => (0, _metal.objectAt)(this, idx));\n    },\n\n    /**\n      This is the handler for the special array content property. If you get\n      this property, it will return this. If you set this property to a new\n      array, it will replace the current content.\n       ```javascript\n      let peopleToMoon = ['Armstrong', 'Aldrin'];\n       peopleToMoon.get('[]'); // ['Armstrong', 'Aldrin']\n       peopleToMoon.set('[]', ['Collins']); // ['Collins']\n      peopleToMoon.get('[]'); // ['Collins']\n      ```\n       @property []\n      @return this\n      @public\n    */\n    '[]': nonEnumerableComputed({\n      get() {\n        return this;\n      },\n\n      set(key, value) {\n        this.replace(0, this.length, value);\n        return this;\n      }\n\n    }),\n\n    /**\n      The first object in the array, or `undefined` if the array is empty.\n       ```javascript\n      let vowels = ['a', 'e', 'i', 'o', 'u'];\n      vowels.firstObject; // 'a'\n       vowels.shiftObject();\n      vowels.firstObject; // 'e'\n       vowels.reverseObjects();\n      vowels.firstObject; // 'u'\n       vowels.clear();\n      vowels.firstObject; // undefined\n      ```\n       @property firstObject\n      @return {Object | undefined} The first object in the array\n      @public\n    */\n    firstObject: nonEnumerableComputed(function () {\n      return (0, _metal.objectAt)(this, 0);\n    }).readOnly(),\n\n    /**\n      The last object in the array, or `undefined` if the array is empty.\n       @property lastObject\n      @return {Object | undefined} The last object in the array\n      @public\n    */\n    lastObject: nonEnumerableComputed(function () {\n      return (0, _metal.objectAt)(this, this.length - 1);\n    }).readOnly(),\n\n    // Add any extra methods to EmberArray that are native to the built-in Array.\n\n    /**\n      Returns a new array that is a slice of the receiver. This implementation\n      uses the observable array methods to retrieve the objects for the new\n      slice.\n       ```javascript\n      let arr = ['red', 'green', 'blue'];\n       arr.slice(0);       // ['red', 'green', 'blue']\n      arr.slice(0, 2);    // ['red', 'green']\n      arr.slice(1, 100);  // ['green', 'blue']\n      ```\n       @method slice\n      @param {Number} beginIndex (Optional) index to begin slicing from.\n      @param {Number} endIndex (Optional) index to end the slice at (but not included).\n      @return {Array} New array with specified slice\n      @public\n    */\n    slice(beginIndex = 0, endIndex) {\n      var ret = A();\n      var length = this.length;\n\n      if (beginIndex < 0) {\n        beginIndex = length + beginIndex;\n      }\n\n      if (endIndex === undefined || endIndex > length) {\n        endIndex = length;\n      } else if (endIndex < 0) {\n        endIndex = length + endIndex;\n      }\n\n      while (beginIndex < endIndex) {\n        ret[ret.length] = (0, _metal.objectAt)(this, beginIndex++);\n      }\n\n      return ret;\n    },\n\n    /**\n      Used to determine the passed object's first occurrence in the array.\n      Returns the index if found, -1 if no match is found.\n       The optional `startAt` argument can be used to pass a starting\n      index to search from, effectively slicing the searchable portion\n      of the array. If it's negative it will add the array length to\n      the startAt value passed in as the index to search from. If less\n      than or equal to `-1 * array.length` the entire array is searched.\n       ```javascript\n      let arr = ['a', 'b', 'c', 'd', 'a'];\n       arr.indexOf('a');       //  0\n      arr.indexOf('z');       // -1\n      arr.indexOf('a', 2);    //  4\n      arr.indexOf('a', -1);   //  4, equivalent to indexOf('a', 4)\n      arr.indexOf('a', -100); //  0, searches entire array\n      arr.indexOf('b', 3);    // -1\n      arr.indexOf('a', 100);  // -1\n       let people = [{ name: 'Zoey' }, { name: 'Bob' }]\n      let newPerson = { name: 'Tom' };\n      people = [newPerson, ...people, newPerson];\n       people.indexOf(newPerson);     //  0\n      people.indexOf(newPerson, 1);  //  3\n      people.indexOf(newPerson, -4); //  0\n      people.indexOf(newPerson, 10); // -1\n      ```\n       @method indexOf\n      @param {Object} object the item to search for\n      @param {Number} startAt optional starting location to search, default 0\n      @return {Number} index or -1 if not found\n      @public\n    */\n    indexOf(object, startAt) {\n      return indexOf(this, object, startAt, false);\n    },\n\n    /**\n      Returns the index of the given `object`'s last occurrence.\n       - If no `startAt` argument is given, the search starts from\n      the last position.\n      - If it's greater than or equal to the length of the array,\n      the search starts from the last position.\n      - If it's negative, it is taken as the offset from the end\n      of the array i.e. `startAt + array.length`.\n      - If it's any other positive number, will search backwards\n      from that index of the array.\n       Returns -1 if no match is found.\n       ```javascript\n      let arr = ['a', 'b', 'c', 'd', 'a'];\n       arr.lastIndexOf('a');       //  4\n      arr.lastIndexOf('z');       // -1\n      arr.lastIndexOf('a', 2);    //  0\n      arr.lastIndexOf('a', -1);   //  4\n      arr.lastIndexOf('a', -3);   //  0\n      arr.lastIndexOf('b', 3);    //  1\n      arr.lastIndexOf('a', 100);  //  4\n      ```\n       @method lastIndexOf\n      @param {Object} object the item to search for\n      @param {Number} startAt optional starting location to search from\n      backwards, defaults to `(array.length - 1)`\n      @return {Number} The last index of the `object` in the array or -1\n      if not found\n      @public\n    */\n    lastIndexOf(object, startAt) {\n      var len = this.length;\n\n      if (startAt === undefined || startAt >= len) {\n        startAt = len - 1;\n      }\n\n      if (startAt < 0) {\n        startAt += len;\n      }\n\n      for (var idx = startAt; idx >= 0; idx--) {\n        if ((0, _metal.objectAt)(this, idx) === object) {\n          return idx;\n        }\n      }\n\n      return -1;\n    },\n\n    // ..........................................................\n    // ARRAY OBSERVERS\n    //\n\n    /**\n      Adds an array observer to the receiving array. The array observer object\n      normally must implement two methods:\n       * `willChange(observedObj, start, removeCount, addCount)` - This method will be\n        called just before the array is modified.\n      * `didChange(observedObj, start, removeCount, addCount)` - This method will be\n        called just after the array is modified.\n       Both callbacks will be passed the observed object, starting index of the\n      change as well as a count of the items to be removed and added. You can use\n      these callbacks to optionally inspect the array during the change, clear\n      caches, or do any other bookkeeping necessary.\n       In addition to passing a target, you can also include an options hash\n      which you can use to override the method names that will be invoked on the\n      target.\n       @method addArrayObserver\n      @param {Object} target The observer object.\n      @param {Object} opts Optional hash of configuration options including\n        `willChange` and `didChange` option.\n      @return {EmberArray} receiver\n      @public\n      @example\n          import Service from '@ember/service';\n           export default Service.extend({\n            data: Ember.A(),\n             init() {\n              this._super(...arguments);\n               this.data.addArrayObserver(this, {\n                willChange: 'dataWillChange',\n                didChange: 'dataDidChange'\n              });\n            },\n             dataWillChange(array, start, removeCount, addCount) {\n              console.log('array will change', array, start, removeCount, addCount);\n            },\n             dataDidChange(array, start, removeCount, addCount) {\n              console.log('array did change', array, start, removeCount, addCount);\n            }\n          });\n    */\n    addArrayObserver(target, opts) {\n      return (0, _metal.addArrayObserver)(this, target, opts);\n    },\n\n    /**\n      Removes an array observer from the object if the observer is current\n      registered. Calling this method multiple times with the same object will\n      have no effect.\n       @method removeArrayObserver\n      @param {Object} target The object observing the array.\n      @param {Object} opts Optional hash of configuration options including\n        `willChange` and `didChange` option.\n      @return {EmberArray} receiver\n      @public\n    */\n    removeArrayObserver(target, opts) {\n      return (0, _metal.removeArrayObserver)(this, target, opts);\n    },\n\n    /**\n      Becomes true whenever the array currently has observers watching changes\n      on the array.\n       ```javascript\n      let arr = [1, 2, 3, 4, 5];\n      arr.hasArrayObservers; // false\n       arr.addArrayObserver(this, {\n        willChange() {\n          console.log('willChange');\n        }\n      });\n      arr.hasArrayObservers; // true\n      ```\n       @property {Boolean} hasArrayObservers\n      @public\n    */\n    hasArrayObservers: (0, _metal.nativeDescDecorator)({\n      configurable: true,\n      enumerable: false,\n\n      get() {\n        return (0, _metal.hasListeners)(this, '@array:change') || (0, _metal.hasListeners)(this, '@array:before');\n      }\n\n    }),\n\n    /**\n      If you are implementing an object that supports `EmberArray`, call this\n      method just before the array content changes to notify any observers and\n      invalidate any related properties. Pass the starting index of the change\n      as well as a delta of the amounts to change.\n       ```app/components/show-post.js\n      import Component from '@ember/component';\n      import EmberObject from '@ember/object';\n       const Post = EmberObject.extend({\n        body: '',\n        save() {}\n      })\n       export default Component.extend({\n        attemptsToModify: 0,\n        successfulModifications: 0,\n        posts: null,\n         init() {\n          this._super(...arguments);\n           this.posts = [1, 2, 3].map(i => Post.create({ body: i }));\n          this.posts.addArrayObserver(this, {\n            willChange() {\n              this.incrementProperty('attemptsToModify');\n            },\n            didChange() {\n              this.incrementProperty('successfulModifications');\n            }\n          });\n        },\n         actions: {\n          editPost(post, newContent) {\n            let oldContent = post.body,\n                postIndex = this.posts.indexOf(post);\n             this.posts.arrayContentWillChange(postIndex, 0, 0); // attemptsToModify = 1\n            post.set('body', newContent);\n             post.save()\n              .then(response => {\n                this.posts.arrayContentDidChange(postIndex, 0, 0); // successfulModifications = 1\n              })\n              .catch(error => {\n                post.set('body', oldContent);\n              })\n          }\n        }\n      });\n      ```\n       @method arrayContentWillChange\n      @param {Number} startIdx The starting index in the array that will change.\n      @param {Number} removeAmt The number of items that will be removed. If you\n        pass `null` assumes 0\n      @param {Number} addAmt The number of items that will be added. If you\n        pass `null` assumes 0.\n      @return {EmberArray} receiver\n      @public\n    */\n    arrayContentWillChange(startIdx, removeAmt, addAmt) {\n      return (0, _metal.arrayContentWillChange)(this, startIdx, removeAmt, addAmt);\n    },\n\n    /**\n      If you are implementing an object that supports `EmberArray`, call this\n      method just after the array content changes to notify any observers and\n      invalidate any related properties. Pass the starting index of the change\n      as well as a delta of the amounts to change.\n       ```javascript\n      let arr = [1, 2, 3, 4, 5];\n       arr.copyWithin(-2); // [1, 2, 3, 1, 2]\n      // arr.lastObject = 5\n      arr.arrayContentDidChange(3, 2, 2);\n      // arr.lastObject = 2\n      ```\n       @method arrayContentDidChange\n      @param {Number} startIdx The starting index in the array that did change.\n      @param {Number} removeAmt The number of items that were removed. If you\n        pass `null` assumes 0\n      @param {Number} addAmt The number of items that were added. If you\n        pass `null` assumes 0.\n      @return {EmberArray} receiver\n      @public\n    */\n    arrayContentDidChange(startIdx, removeAmt, addAmt) {\n      return (0, _metal.arrayContentDidChange)(this, startIdx, removeAmt, addAmt);\n    },\n\n    /**\n      Iterates through the array, calling the passed function on each\n      item. This method corresponds to the `forEach()` method defined in\n      JavaScript 1.6.\n       The callback method you provide should have the following signature (all\n      parameters are optional):\n       ```javascript\n      function(item, index, array);\n      ```\n       - `item` is the current item in the iteration.\n      - `index` is the current index in the iteration.\n      - `array` is the array itself.\n       Note that in addition to a callback, you can also pass an optional target\n      object that will be set as `this` on the context. This is a good way\n      to give your iterator function access to the current object.\n       Example Usage:\n       ```javascript\n      let foods = [\n        { name: 'apple', eaten: false },\n        { name: 'banana', eaten: false },\n        { name: 'carrot', eaten: false }\n      ];\n       foods.forEach((food) => food.eaten = true);\n       let output = '';\n      foods.forEach((item, index, array) =>\n        output += `${index + 1}/${array.length} ${item.name}\\n`;\n      );\n      console.log(output);\n      // 1/3 apple\n      // 2/3 banana\n      // 3/3 carrot\n      ```\n       @method forEach\n      @param {Function} callback The callback to execute\n      @param {Object} [target] The target object to use\n      @return {Object} receiver\n      @public\n    */\n    forEach(callback, target = null) {\n      (true && !(typeof callback === 'function') && (0, _debug.assert)('`forEach` expects a function as first argument.', typeof callback === 'function'));\n      var length = this.length;\n\n      for (var index = 0; index < length; index++) {\n        var item = this.objectAt(index);\n        callback.call(target, item, index, this);\n      }\n\n      return this;\n    },\n\n    /**\n      Alias for `mapBy`.\n       Returns the value of the named\n      property on all items in the enumeration.\n       ```javascript\n      let people = [{name: 'Joe'}, {name: 'Matt'}];\n       people.getEach('name');\n      // ['Joe', 'Matt'];\n       people.getEach('nonexistentProperty');\n      // [undefined, undefined];\n      ```\n       @method getEach\n      @param {String} key name of the property\n      @return {Array} The mapped array.\n      @public\n    */\n    getEach: mapBy,\n\n    /**\n      Sets the value on the named property for each member. This is more\n      ergonomic than using other methods defined on this helper. If the object\n      implements Observable, the value will be changed to `set(),` otherwise\n      it will be set directly. `null` objects are skipped.\n       ```javascript\n      let people = [{name: 'Joe'}, {name: 'Matt'}];\n       people.setEach('zipCode', '10011');\n      // [{name: 'Joe', zipCode: '10011'}, {name: 'Matt', zipCode: '10011'}];\n      ```\n       @method setEach\n      @param {String} key The key to set\n      @param {Object} value The object to set\n      @return {Object} receiver\n      @public\n    */\n    setEach(key, value) {\n      return this.forEach(item => (0, _metal.set)(item, key, value));\n    },\n\n    /**\n      Maps all of the items in the enumeration to another value, returning\n      a new array. This method corresponds to `map()` defined in JavaScript 1.6.\n       The callback method you provide should have the following signature (all\n      parameters are optional):\n       ```javascript\n      function(item, index, array);\n      let arr = [1, 2, 3, 4, 5, 6];\n       arr.map(element => element * element);\n      // [1, 4, 9, 16, 25, 36];\n       arr.map((element, index) => element + index);\n      // [1, 3, 5, 7, 9, 11];\n      ```\n       - `item` is the current item in the iteration.\n      - `index` is the current index in the iteration.\n      - `array` is the array itself.\n       It should return the mapped value.\n       Note that in addition to a callback, you can also pass an optional target\n      object that will be set as `this` on the context. This is a good way\n      to give your iterator function access to the current object.\n       @method map\n      @param {Function} callback The callback to execute\n      @param {Object} [target] The target object to use\n      @return {Array} The mapped array.\n      @public\n    */\n    map(callback, target = null) {\n      (true && !(typeof callback === 'function') && (0, _debug.assert)('`map` expects a function as first argument.', typeof callback === 'function'));\n      var ret = A();\n      this.forEach((x, idx, i) => ret[idx] = callback.call(target, x, idx, i));\n      return ret;\n    },\n\n    /**\n      Similar to map, this specialized function returns the value of the named\n      property on all items in the enumeration.\n       ```javascript\n      let people = [{name: 'Joe'}, {name: 'Matt'}];\n       people.mapBy('name');\n      // ['Joe', 'Matt'];\n       people.mapBy('unknownProperty');\n      // [undefined, undefined];\n      ```\n       @method mapBy\n      @param {String} key name of the property\n      @return {Array} The mapped array.\n      @public\n    */\n    mapBy,\n\n    /**\n      Returns a new array with all of the items in the enumeration that the provided\n      callback function returns true for. This method corresponds to [Array.prototype.filter()](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/filter).\n       The callback method should have the following signature:\n       ```javascript\n      function(item, index, array);\n      ```\n       - `item` is the current item in the iteration.\n      - `index` is the current index in the iteration.\n      - `array` is the array itself.\n       All parameters are optional. The function should return `true` to include the item\n      in the results, and `false` otherwise.\n       Example:\n       ```javascript\n      function isAdult(person) {\n        return person.age > 18;\n      };\n       let people = Ember.A([{ name: 'John', age: 14 }, { name: 'Joan', age: 45 }]);\n       people.filter(isAdult); // returns [{ name: 'Joan', age: 45 }];\n      ```\n       Note that in addition to a callback, you can pass an optional target object\n      that will be set as `this` on the context. This is a good way to give your\n      iterator function access to the current object.\n       @method filter\n      @param {Function} callback The callback to execute\n      @param {Object} [target] The target object to use\n      @return {Array} A filtered array.\n      @public\n    */\n    filter(callback, target = null) {\n      (true && !(typeof callback === 'function') && (0, _debug.assert)('`filter` expects a function as first argument.', typeof callback === 'function'));\n      var ret = A();\n      this.forEach((x, idx, i) => {\n        if (callback.call(target, x, idx, i)) {\n          ret.push(x);\n        }\n      });\n      return ret;\n    },\n\n    /**\n      Returns an array with all of the items in the enumeration where the passed\n      function returns false. This method is the inverse of filter().\n       The callback method you provide should have the following signature (all\n      parameters are optional):\n       ```javascript\n      function(item, index, array);\n      ```\n       - *item* is the current item in the iteration.\n      - *index* is the current index in the iteration\n      - *array* is the array itself.\n       It should return a falsey value to include the item in the results.\n       Note that in addition to a callback, you can also pass an optional target\n      object that will be set as \"this\" on the context. This is a good way\n      to give your iterator function access to the current object.\n       Example Usage:\n       ```javascript\n      const food = [\n        { food: 'apple', isFruit: true },\n        { food: 'bread', isFruit: false },\n        { food: 'banana', isFruit: true }\n      ];\n      const nonFruits = food.reject(function(thing) {\n        return thing.isFruit;\n      }); // [{food: 'bread', isFruit: false}]\n      ```\n       @method reject\n      @param {Function} callback The callback to execute\n      @param {Object} [target] The target object to use\n      @return {Array} A rejected array.\n      @public\n    */\n    reject(callback, target = null) {\n      (true && !(typeof callback === 'function') && (0, _debug.assert)('`reject` expects a function as first argument.', typeof callback === 'function'));\n      return this.filter(function () {\n        return !callback.apply(target, arguments);\n      });\n    },\n\n    /**\n      Filters the array by the property and an optional value. If a value is given, it returns\n      the items that have said value for the property. If not, it returns all the items that\n      have a truthy value for the property.\n       Example Usage:\n       ```javascript\n      let things = Ember.A([{ food: 'apple', isFruit: true }, { food: 'beans', isFruit: false }]);\n       things.filterBy('food', 'beans'); // [{ food: 'beans' }]\n      things.filterBy('isFruit'); // [{ food: 'apple' }]\n      ```\n       @method filterBy\n      @param {String} key the property to test\n      @param {*} [value] optional value to test against.\n      @return {Array} filtered array\n      @public\n    */\n    filterBy() {\n      return this.filter(iter(...arguments));\n    },\n\n    /**\n      Returns an array with the items that do not have truthy values for the provided key.\n      You can pass an optional second argument with a target value to reject for the key.\n      Otherwise this will reject objects where the provided property evaluates to false.\n       Example Usage:\n       ```javascript\n        let food = [\n          { name: \"apple\", isFruit: true },\n          { name: \"carrot\", isFruit: false },\n          { name: \"bread\", isFruit: false },\n        ];\n        food.rejectBy('isFruit'); // [{ name: \"carrot\", isFruit: false }, { name: \"bread\", isFruit: false }]\n        food.rejectBy('name', 'carrot'); // [{ name: \"apple\", isFruit: true }}, { name: \"bread\", isFruit: false }]\n      ```\n       @method rejectBy\n      @param {String} key the property to test\n      @param {*} [value] optional value to test against.\n      @return {Array} rejected array\n      @public\n    */\n    rejectBy() {\n      return this.reject(iter(...arguments));\n    },\n\n    /**\n      Returns the first item in the array for which the callback returns true.\n      This method is similar to the `find()` method defined in ECMAScript 2015.\n       The callback method you provide should have the following signature (all\n      parameters are optional):\n       ```javascript\n      function(item, index, array);\n      ```\n       - `item` is the current item in the iteration.\n      - `index` is the current index in the iteration.\n      - `array` is the array itself.\n       It should return the `true` to include the item in the results, `false`\n      otherwise.\n       Note that in addition to a callback, you can also pass an optional target\n      object that will be set as `this` on the context. This is a good way\n      to give your iterator function access to the current object.\n       Example Usage:\n       ```javascript\n      let users = [\n        { id: 1, name: 'Yehuda' },\n        { id: 2, name: 'Tom' },\n        { id: 3, name: 'Melanie' },\n        { id: 4, name: 'Leah' }\n      ];\n       users.find((user) => user.name == 'Tom'); // [{ id: 2, name: 'Tom' }]\n      users.find(({ id }) => id == 3); // [{ id: 3, name: 'Melanie' }]\n      ```\n       @method find\n      @param {Function} callback The callback to execute\n      @param {Object} [target] The target object to use\n      @return {Object} Found item or `undefined`.\n      @public\n    */\n    find(callback, target = null) {\n      (true && !(typeof callback === 'function') && (0, _debug.assert)('`find` expects a function as first argument.', typeof callback === 'function'));\n      return find(this, callback, target);\n    },\n\n    /**\n      Returns the first item with a property matching the passed value. You\n      can pass an optional second argument with the target value. Otherwise\n      this will match any property that evaluates to `true`.\n       This method works much like the more generic `find()` method.\n       Usage Example:\n       ```javascript\n      let users = [\n        { id: 1, name: 'Yehuda', isTom: false },\n        { id: 2, name: 'Tom', isTom: true },\n        { id: 3, name: 'Melanie', isTom: false },\n        { id: 4, name: 'Leah', isTom: false }\n      ];\n       users.findBy('id', 4); // { id: 4, name: 'Leah', isTom: false }\n      users.findBy('name', 'Melanie'); // { id: 3, name: 'Melanie', isTom: false }\n      users.findBy('isTom'); // { id: 2, name: 'Tom', isTom: true }\n      ```\n       @method findBy\n      @param {String} key the property to test\n      @param {String} [value] optional value to test against.\n      @return {Object} found item or `undefined`\n      @public\n    */\n    findBy() {\n      return find(this, iter(...arguments));\n    },\n\n    /**\n      Returns `true` if the passed function returns true for every item in the\n      enumeration. This corresponds with the `Array.prototype.every()` method defined in ES5.\n       The callback method should have the following signature:\n       ```javascript\n      function(item, index, array);\n      ```\n       - `item` is the current item in the iteration.\n      - `index` is the current index in the iteration.\n      - `array` is the array itself.\n       All params are optional. The method should return `true` or `false`.\n       Note that in addition to a callback, you can also pass an optional target\n      object that will be set as `this` on the context. This is a good way\n      to give your iterator function access to the current object.\n       Usage example:\n       ```javascript\n      function isAdult(person) {\n        return person.age > 18;\n      };\n       const people = Ember.A([{ name: 'John', age: 24 }, { name: 'Joan', age: 45 }]);\n      const areAllAdults = people.every(isAdult);\n      ```\n       @method every\n      @param {Function} callback The callback to execute\n      @param {Object} [target] The target object to use\n      @return {Boolean}\n      @public\n    */\n    every(callback, target = null) {\n      (true && !(typeof callback === 'function') && (0, _debug.assert)('`every` expects a function as first argument.', typeof callback === 'function'));\n      return every(this, callback, target);\n    },\n\n    /**\n      Returns `true` if the passed property resolves to the value of the second\n      argument for all items in the array. This method is often simpler/faster\n      than using a callback.\n       Note that like the native `Array.every`, `isEvery` will return true when called\n      on any empty array.\n      ```javascript\n      class Language {\n        constructor(name, isProgrammingLanguage) {\n          this.name = name;\n          this.programmingLanguage = isProgrammingLanguage;\n        }\n      }\n       const compiledLanguages = [\n        new Language('Java', true),\n        new Language('Go', true),\n        new Language('Rust', true)\n      ]\n       const languagesKnownByMe = [\n        new Language('Javascript', true),\n        new Language('English', false),\n        new Language('Ruby', true)\n      ]\n       compiledLanguages.isEvery('programmingLanguage'); // true\n      languagesKnownByMe.isEvery('programmingLanguage'); // false\n      ```\n       @method isEvery\n      @param {String} key the property to test\n      @param {String} [value] optional value to test against. Defaults to `true`\n      @return {Boolean}\n      @since 1.3.0\n      @public\n    */\n    isEvery() {\n      return every(this, iter(...arguments));\n    },\n\n    /**\n      The any() method executes the callback function once for each element\n      present in the array until it finds the one where callback returns a truthy\n      value (i.e. `true`). If such an element is found, any() immediately returns\n      true. Otherwise, any() returns false.\n       ```javascript\n      function(item, index, array);\n      ```\n       - `item` is the current item in the iteration.\n      - `index` is the current index in the iteration.\n      - `array` is the array object itself.\n       Note that in addition to a callback, you can also pass an optional target\n      object that will be set as `this` on the context. It can be a good way\n      to give your iterator function access to an object in cases where an ES6\n      arrow function would not be appropriate.\n       Usage Example:\n       ```javascript\n      let includesManager = people.any(this.findPersonInManagersList, this);\n       let includesStockHolder = people.any(person => {\n        return this.findPersonInStockHoldersList(person)\n      });\n       if (includesManager || includesStockHolder) {\n        Paychecks.addBiggerBonus();\n      }\n      ```\n       @method any\n      @param {Function} callback The callback to execute\n      @param {Object} [target] The target object to use\n      @return {Boolean} `true` if the passed function returns `true` for any item\n      @public\n    */\n    any(callback, target = null) {\n      (true && !(typeof callback === 'function') && (0, _debug.assert)('`any` expects a function as first argument.', typeof callback === 'function'));\n      return any(this, callback, target);\n    },\n\n    /**\n      Returns `true` if the passed property resolves to the value of the second\n      argument for any item in the array. This method is often simpler/faster\n      than using a callback.\n       Example usage:\n       ```javascript\n      const food = [\n        { food: 'apple', isFruit: true },\n        { food: 'bread', isFruit: false },\n        { food: 'banana', isFruit: true }\n      ];\n       food.isAny('isFruit'); // true\n      ```\n       @method isAny\n      @param {String} key the property to test\n      @param {String} [value] optional value to test against. Defaults to `true`\n      @return {Boolean}\n      @since 1.3.0\n      @public\n    */\n    isAny() {\n      return any(this, iter(...arguments));\n    },\n\n    /**\n      This will combine the values of the array into a single value. It\n      is a useful way to collect a summary value from an array. This\n      corresponds to the `reduce()` method defined in JavaScript 1.8.\n       The callback method you provide should have the following signature (all\n      parameters are optional):\n       ```javascript\n      function(previousValue, item, index, array);\n      ```\n       - `previousValue` is the value returned by the last call to the iterator.\n      - `item` is the current item in the iteration.\n      - `index` is the current index in the iteration.\n      - `array` is the array itself.\n       Return the new cumulative value.\n       In addition to the callback you can also pass an `initialValue`. An error\n      will be raised if you do not pass an initial value and the enumerator is\n      empty.\n       Note that unlike the other methods, this method does not allow you to\n      pass a target object to set as this for the callback. It's part of the\n      spec. Sorry.\n       Example Usage:\n       ```javascript\n        let numbers = [1, 2, 3, 4, 5];\n         numbers.reduce(function(summation, current) {\n          return summation + current;\n        }); // 15 (1 + 2 + 3 + 4 + 5)\n         numbers.reduce(function(summation, current) {\n          return summation + current;\n        }, -15); // 0 (-15 + 1 + 2 + 3 + 4 + 5)\n          let binaryValues = [true, false, false];\n         binaryValues.reduce(function(truthValue, current) {\n          return truthValue && current;\n        }); // false (true && false && false)\n      ```\n       @method reduce\n      @param {Function} callback The callback to execute\n      @param {Object} initialValue Initial value for the reduce\n      @return {Object} The reduced value.\n      @public\n    */\n    reduce(callback, initialValue) {\n      (true && !(typeof callback === 'function') && (0, _debug.assert)('`reduce` expects a function as first argument.', typeof callback === 'function'));\n      var ret = initialValue;\n      this.forEach(function (item, i) {\n        ret = callback(ret, item, i, this);\n      }, this);\n      return ret;\n    },\n\n    /**\n      Invokes the named method on every object in the receiver that\n      implements it. This method corresponds to the implementation in\n      Prototype 1.6.\n       ```javascript\n      class Person {\n        name = null;\n         constructor(name) {\n          this.name = name;\n        }\n         greet(prefix='Hello') {\n          return `${prefix} ${this.name}`;\n        }\n      }\n       let people = [new Person('Joe'), new Person('Matt')];\n       people.invoke('greet'); // ['Hello Joe', 'Hello Matt']\n      people.invoke('greet', 'Bonjour'); // ['Bonjour Joe', 'Bonjour Matt']\n      ```\n       @method invoke\n      @param {String} methodName the name of the method\n      @param {Object...} args optional arguments to pass as well.\n      @return {Array} return values from calling invoke.\n      @public\n    */\n    invoke(methodName, ...args) {\n      var ret = A();\n      this.forEach(item => ret.push((0, _utils.tryInvoke)(item, methodName, args)));\n      return ret;\n    },\n\n    /**\n      Simply converts the object into a genuine array. The order is not\n      guaranteed. Corresponds to the method implemented by Prototype.\n       @method toArray\n      @return {Array} the object as an array.\n      @public\n    */\n    toArray() {\n      return this.map(item => item);\n    },\n\n    /**\n      Returns a copy of the array with all `null` and `undefined` elements removed.\n       ```javascript\n      let arr = ['a', null, 'c', undefined];\n      arr.compact();  // ['a', 'c']\n      ```\n       @method compact\n      @return {Array} the array without null and undefined elements.\n      @public\n    */\n    compact() {\n      return this.filter(value => value != null);\n    },\n\n    /**\n      Used to determine if the array contains the passed object.\n      Returns `true` if found, `false` otherwise.\n       The optional `startAt` argument can be used to pass a starting\n      index to search from, effectively slicing the searchable portion\n      of the array. If it's negative it will add the array length to\n      the startAt value passed in as the index to search from. If less\n      than or equal to `-1 * array.length` the entire array is searched.\n       This method has the same behavior of JavaScript's [Array.includes](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/includes).\n       ```javascript\n      [1, 2, 3].includes(2);     // true\n      [1, 2, 3].includes(4);     // false\n      [1, 2, 3].includes(3, 2);  // true\n      [1, 2, 3].includes(3, 3);  // false\n      [1, 2, 3].includes(3, -1); // true\n      [1, 2, 3].includes(1, -1); // false\n      [1, 2, 3].includes(1, -4); // true\n      [1, 2, NaN].includes(NaN); // true\n      ```\n       @method includes\n      @param {Object} object The object to search for.\n      @param {Number} startAt optional starting location to search, default 0\n      @return {Boolean} `true` if object is found in the array.\n      @public\n    */\n    includes(object, startAt) {\n      return indexOf(this, object, startAt, true) !== -1;\n    },\n\n    /**\n      Sorts the array by the keys specified in the argument.\n       You may provide multiple arguments to sort by multiple properties.\n       ```javascript\n     let colors = [\n       { name: 'red', weight: 500 },\n       { name: 'green', weight: 600 },\n       { name: 'blue', weight: 500 }\n      ];\n      colors.sortBy('name');\n     // [{name: 'blue', weight: 500}, {name: 'green', weight: 600}, {name: 'red', weight: 500}]\n      colors.sortBy('weight', 'name');\n     // [{name: 'blue', weight: 500}, {name: 'red', weight: 500}, {name: 'green', weight: 600}]\n     ```\n       @method sortBy\n      @param {String} property name(s) to sort on\n      @return {Array} The sorted array.\n      @since 1.2.0\n      @public\n    */\n    sortBy() {\n      var sortKeys = arguments;\n      return this.toArray().sort((a, b) => {\n        for (var i = 0; i < sortKeys.length; i++) {\n          var key = sortKeys[i];\n          var propA = (0, _metal.get)(a, key);\n          var propB = (0, _metal.get)(b, key); // return 1 or -1 else continue to the next sortKey\n\n          var compareValue = (0, _compare.default)(propA, propB);\n\n          if (compareValue) {\n            return compareValue;\n          }\n        }\n\n        return 0;\n      });\n    },\n\n    /**\n      Returns a new array that contains only unique values. The default\n      implementation returns an array regardless of the receiver type.\n       ```javascript\n      let arr = ['a', 'a', 'b', 'b'];\n      arr.uniq();  // ['a', 'b']\n      ```\n       This only works on primitive data types, e.g. Strings, Numbers, etc.\n       @method uniq\n      @return {EmberArray}\n      @public\n    */\n    uniq() {\n      return uniqBy(this);\n    },\n\n    /**\n      Returns a new array that contains only items containing a unique property value.\n      The default implementation returns an array regardless of the receiver type.\n       ```javascript\n      let arr = [{ value: 'a' }, { value: 'a' }, { value: 'b' }, { value: 'b' }];\n      arr.uniqBy('value');  // [{ value: 'a' }, { value: 'b' }]\n       let arr = [2.2, 2.1, 3.2, 3.3];\n      arr.uniqBy(Math.floor);  // [2.2, 3.2];\n      ```\n       @method uniqBy\n      @param {String,Function} key\n      @return {EmberArray}\n      @public\n    */\n    uniqBy(key) {\n      return uniqBy(this, key);\n    },\n\n    /**\n      Returns a new array that excludes the passed value. The default\n      implementation returns an array regardless of the receiver type.\n      If the receiver does not contain the value it returns the original array.\n       ```javascript\n      let arr = ['a', 'b', 'a', 'c'];\n      arr.without('a');  // ['b', 'c']\n      ```\n       @method without\n      @param {Object} value\n      @return {EmberArray}\n      @public\n    */\n    without(value) {\n      if (!this.includes(value)) {\n        return this; // nothing to do\n      } // SameValueZero comparison (NaN !== NaN)\n\n\n      var predicate = value === value ? item => item !== value : item => item === item;\n      return this.filter(predicate);\n    }\n\n  });\n  /**\n    This mixin defines the API for modifying array-like objects. These methods\n    can be applied only to a collection that keeps its items in an ordered set.\n    It builds upon the Array mixin and adds methods to modify the array.\n    One concrete implementations of this class include ArrayProxy.\n  \n    It is important to use the methods in this class to modify arrays so that\n    changes are observable. This allows the binding system in Ember to function\n    correctly.\n  \n  \n    Note that an Array can change even if it does not implement this mixin.\n    For example, one might implement a SparseArray that cannot be directly\n    modified, but if its underlying enumerable changes, it will change also.\n  \n    @class MutableArray\n    @uses EmberArray\n    @uses MutableEnumerable\n    @public\n  */\n\n\n  var MutableArray = _metal.Mixin.create(ArrayMixin, _mutable_enumerable.default, {\n    /**\n      __Required.__ You must implement this method to apply this mixin.\n       This is one of the primitives you must implement to support `Array`.\n      You should replace amt objects started at idx with the objects in the\n      passed array. You should also call `this.arrayContentDidChange()`\n       Note that this method is expected to validate the type(s) of objects that it expects.\n       @method replace\n      @param {Number} idx Starting index in the array to replace. If\n        idx >= length, then append to the end of the array.\n      @param {Number} amt Number of elements that should be removed from\n        the array, starting at *idx*.\n      @param {EmberArray} objects An array of zero or more objects that should be\n        inserted into the array at *idx*\n      @public\n    */\n\n    /**\n      Remove all elements from the array. This is useful if you\n      want to reuse an existing array without having to recreate it.\n       ```javascript\n      let colors = ['red', 'green', 'blue'];\n       colors.length;  // 3\n      colors.clear(); // []\n      colors.length;  // 0\n      ```\n       @method clear\n      @return {Array} An empty Array.\n      @public\n    */\n    clear() {\n      var len = this.length;\n\n      if (len === 0) {\n        return this;\n      }\n\n      this.replace(0, len, EMPTY_ARRAY);\n      return this;\n    },\n\n    /**\n      This will use the primitive `replace()` method to insert an object at the\n      specified index.\n       ```javascript\n      let colors = ['red', 'green', 'blue'];\n       colors.insertAt(2, 'yellow');  // ['red', 'green', 'yellow', 'blue']\n      colors.insertAt(5, 'orange');  // Error: Index out of range\n      ```\n       @method insertAt\n      @param {Number} idx index of insert the object at.\n      @param {Object} object object to insert\n      @return {EmberArray} receiver\n      @public\n    */\n    insertAt(idx, object) {\n      insertAt(this, idx, object);\n      return this;\n    },\n\n    /**\n      Remove an object at the specified index using the `replace()` primitive\n      method. You can pass either a single index, or a start and a length.\n       If you pass a start and length that is beyond the\n      length this method will throw an assertion.\n       ```javascript\n      let colors = ['red', 'green', 'blue', 'yellow', 'orange'];\n       colors.removeAt(0);     // ['green', 'blue', 'yellow', 'orange']\n      colors.removeAt(2, 2);  // ['green', 'blue']\n      colors.removeAt(4, 2);  // Error: Index out of range\n      ```\n       @method removeAt\n      @param {Number} start index, start of range\n      @param {Number} len length of passing range\n      @return {EmberArray} receiver\n      @public\n    */\n    removeAt(start, len) {\n      return removeAt(this, start, len);\n    },\n\n    /**\n      Push the object onto the end of the array. Works just like `push()` but it\n      is KVO-compliant.\n       ```javascript\n      let colors = ['red', 'green'];\n       colors.pushObject('black');     // ['red', 'green', 'black']\n      colors.pushObject(['yellow']);  // ['red', 'green', ['yellow']]\n      ```\n       @method pushObject\n      @param {*} obj object to push\n      @return object same object passed as a param\n      @public\n    */\n    pushObject(obj) {\n      return insertAt(this, this.length, obj);\n    },\n\n    /**\n      Add the objects in the passed array to the end of the array. Defers\n      notifying observers of the change until all objects are added.\n       ```javascript\n      let colors = ['red'];\n       colors.pushObjects(['yellow', 'orange']);  // ['red', 'yellow', 'orange']\n      ```\n       @method pushObjects\n      @param {EmberArray} objects the objects to add\n      @return {EmberArray} receiver\n      @public\n    */\n    pushObjects(objects) {\n      this.replace(this.length, 0, objects);\n      return this;\n    },\n\n    /**\n      Pop object from array or nil if none are left. Works just like `pop()` but\n      it is KVO-compliant.\n       ```javascript\n      let colors = ['red', 'green', 'blue'];\n       colors.popObject();   // 'blue'\n      console.log(colors);  // ['red', 'green']\n      ```\n       @method popObject\n      @return object\n      @public\n    */\n    popObject() {\n      var len = this.length;\n\n      if (len === 0) {\n        return null;\n      }\n\n      var ret = (0, _metal.objectAt)(this, len - 1);\n      this.removeAt(len - 1, 1);\n      return ret;\n    },\n\n    /**\n      Shift an object from start of array or nil if none are left. Works just\n      like `shift()` but it is KVO-compliant.\n       ```javascript\n      let colors = ['red', 'green', 'blue'];\n       colors.shiftObject();  // 'red'\n      console.log(colors);   // ['green', 'blue']\n      ```\n       @method shiftObject\n      @return object\n      @public\n    */\n    shiftObject() {\n      if (this.length === 0) {\n        return null;\n      }\n\n      var ret = (0, _metal.objectAt)(this, 0);\n      this.removeAt(0);\n      return ret;\n    },\n\n    /**\n      Unshift an object to start of array. Works just like `unshift()` but it is\n      KVO-compliant.\n       ```javascript\n      let colors = ['red'];\n       colors.unshiftObject('yellow');    // ['yellow', 'red']\n      colors.unshiftObject(['black']);   // [['black'], 'yellow', 'red']\n      ```\n       @method unshiftObject\n      @param {*} obj object to unshift\n      @return object same object passed as a param\n      @public\n    */\n    unshiftObject(obj) {\n      return insertAt(this, 0, obj);\n    },\n\n    /**\n      Adds the named objects to the beginning of the array. Defers notifying\n      observers until all objects have been added.\n       ```javascript\n      let colors = ['red'];\n       colors.unshiftObjects(['black', 'white']);   // ['black', 'white', 'red']\n      colors.unshiftObjects('yellow'); // Type Error: 'undefined' is not a function\n      ```\n       @method unshiftObjects\n      @param {Enumberable} objects the objects to add\n      @return {EmberArray} receiver\n      @public\n    */\n    unshiftObjects(objects) {\n      this.replace(0, 0, objects);\n      return this;\n    },\n\n    /**\n      Reverse objects in the array. Works just like `reverse()` but it is\n      KVO-compliant.\n       @method reverseObjects\n      @return {EmberArray} receiver\n       @public\n    */\n    reverseObjects() {\n      var len = this.length;\n\n      if (len === 0) {\n        return this;\n      }\n\n      var objects = this.toArray().reverse();\n      this.replace(0, len, objects);\n      return this;\n    },\n\n    /**\n      Replace all the receiver's content with content of the argument.\n      If argument is an empty array receiver will be cleared.\n       ```javascript\n      let colors = ['red', 'green', 'blue'];\n       colors.setObjects(['black', 'white']);  // ['black', 'white']\n      colors.setObjects([]);                  // []\n      ```\n       @method setObjects\n      @param {EmberArray} objects array whose content will be used for replacing\n          the content of the receiver\n      @return {EmberArray} receiver with the new content\n      @public\n    */\n    setObjects(objects) {\n      if (objects.length === 0) {\n        return this.clear();\n      }\n\n      var len = this.length;\n      this.replace(0, len, objects);\n      return this;\n    },\n\n    /**\n      Remove all occurrences of an object in the array.\n       ```javascript\n      let cities = ['Chicago', 'Berlin', 'Lima', 'Chicago'];\n       cities.removeObject('Chicago');  // ['Berlin', 'Lima']\n      cities.removeObject('Lima');     // ['Berlin']\n      cities.removeObject('Tokyo')     // ['Berlin']\n      ```\n       @method removeObject\n      @param {*} obj object to remove\n      @return {EmberArray} receiver\n      @public\n    */\n    removeObject(obj) {\n      var loc = this.length || 0;\n\n      while (--loc >= 0) {\n        var curObject = (0, _metal.objectAt)(this, loc);\n\n        if (curObject === obj) {\n          this.removeAt(loc);\n        }\n      }\n\n      return this;\n    },\n\n    /**\n      Removes each object in the passed array from the receiver.\n       @method removeObjects\n      @param {EmberArray} objects the objects to remove\n      @return {EmberArray} receiver\n      @public\n    */\n    removeObjects(objects) {\n      (0, _metal.beginPropertyChanges)();\n\n      for (var i = objects.length - 1; i >= 0; i--) {\n        this.removeObject(objects[i]);\n      }\n\n      (0, _metal.endPropertyChanges)();\n      return this;\n    },\n\n    /**\n      Push the object onto the end of the array if it is not already\n      present in the array.\n       ```javascript\n      let cities = ['Chicago', 'Berlin'];\n       cities.addObject('Lima');    // ['Chicago', 'Berlin', 'Lima']\n      cities.addObject('Berlin');  // ['Chicago', 'Berlin', 'Lima']\n      ```\n       @method addObject\n      @param {*} obj object to add, if not already present\n      @return {EmberArray} receiver\n      @public\n    */\n    addObject(obj) {\n      var included = this.includes(obj);\n\n      if (!included) {\n        this.pushObject(obj);\n      }\n\n      return this;\n    },\n\n    /**\n      Adds each object in the passed array to the receiver.\n       @method addObjects\n      @param {EmberArray} objects the objects to add.\n      @return {EmberArray} receiver\n      @public\n    */\n    addObjects(objects) {\n      (0, _metal.beginPropertyChanges)();\n      objects.forEach(obj => this.addObject(obj));\n      (0, _metal.endPropertyChanges)();\n      return this;\n    }\n\n  });\n  /**\n    Creates an `Ember.NativeArray` from an Array-like object.\n    Does not modify the original object's contents. `A()` is not needed if\n    `EmberENV.EXTEND_PROTOTYPES` is `true` (the default value). However,\n    it is recommended that you use `A()` when creating addons for\n    ember or when you can not guarantee that `EmberENV.EXTEND_PROTOTYPES`\n    will be `true`.\n  \n    Example\n  \n    ```app/components/my-component.js\n    import Component from '@ember/component';\n    import { A } from '@ember/array';\n  \n    export default Component.extend({\n      tagName: 'ul',\n      classNames: ['pagination'],\n  \n      init() {\n        this._super(...arguments);\n  \n        if (!this.get('content')) {\n          this.set('content', A());\n          this.set('otherContent', A([1,2,3]));\n        }\n      }\n    });\n    ```\n  \n    @method A\n    @static\n    @for @ember/array\n    @return {Ember.NativeArray}\n    @public\n  */\n  // Add Ember.Array to Array.prototype. Remove methods with native\n  // implementations and supply some more optimized versions of generic methods\n  // because they are so common.\n\n  /**\n  @module ember\n  */\n\n  /**\n    The NativeArray mixin contains the properties needed to make the native\n    Array support MutableArray and all of its dependent APIs. Unless you\n    have `EmberENV.EXTEND_PROTOTYPES` or `EmberENV.EXTEND_PROTOTYPES.Array` set to\n    false, this will be applied automatically. Otherwise you can apply the mixin\n    at anytime by calling `Ember.NativeArray.apply(Array.prototype)`.\n  \n    @class Ember.NativeArray\n    @uses MutableArray\n    @uses Observable\n    @public\n  */\n\n\n  _exports.MutableArray = MutableArray;\n\n  var NativeArray = _metal.Mixin.create(MutableArray, _observable.default, {\n    objectAt(idx) {\n      return this[idx];\n    },\n\n    // primitive for array support.\n    replace(start, deleteCount, items = EMPTY_ARRAY) {\n      (true && !(Array.isArray(items)) && (0, _debug.assert)('The third argument to replace needs to be an array.', Array.isArray(items)));\n      (0, _metal.replaceInNativeArray)(this, start, deleteCount, items);\n      return this;\n    }\n\n  }); // Remove any methods implemented natively so we don't override them\n\n\n  _exports.NativeArray = NativeArray;\n  var ignore = ['length'];\n  NativeArray.keys().forEach(methodName => {\n    if (Array.prototype[methodName]) {\n      ignore.push(methodName);\n    }\n  });\n  _exports.NativeArray = NativeArray = NativeArray.without(...ignore);\n  var A;\n  _exports.A = A;\n\n  if (_environment.ENV.EXTEND_PROTOTYPES.Array) {\n    NativeArray.apply(Array.prototype);\n\n    _exports.A = A = function (arr) {\n      (true && !(!(this instanceof A)) && (0, _debug.assert)('You cannot create an Ember Array with `new A()`, please update to calling A as a function: `A()`', !(this instanceof A)));\n      return arr || [];\n    };\n  } else {\n    _exports.A = A = function (arr) {\n      (true && !(!(this instanceof A)) && (0, _debug.assert)('You cannot create an Ember Array with `new A()`, please update to calling A as a function: `A()`', !(this instanceof A)));\n\n      if (!arr) {\n        arr = [];\n      }\n\n      return ArrayMixin.detect(arr) ? arr : NativeArray.apply(arr);\n    };\n  }\n\n  var _default = ArrayMixin;\n  _exports.default = _default;\n});","define(\"@ember/-internals/runtime/lib/mixins/comparable\", [\"exports\", \"@ember/-internals/metal\"], function (_exports, _metal) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n  @module ember\n  */\n\n  /**\n    Implements some standard methods for comparing objects. Add this mixin to\n    any class you create that can compare its instances.\n  \n    You should implement the `compare()` method.\n  \n    @class Comparable\n    @namespace Ember\n    @since Ember 0.9\n    @private\n  */\n  var _default = _metal.Mixin.create({\n    /**\n      __Required.__ You must implement this method to apply this mixin.\n       Override to return the result of the comparison of the two parameters. The\n      compare method should return:\n       - `-1` if `a < b`\n      - `0` if `a == b`\n      - `1` if `a > b`\n       Default implementation raises an exception.\n       @method compare\n      @param a {Object} the first object to compare\n      @param b {Object} the second object to compare\n      @return {Number} the result of the comparison\n      @private\n    */\n    compare: null\n  });\n\n  _exports.default = _default;\n});","define(\"@ember/-internals/runtime/lib/mixins/container_proxy\", [\"exports\", \"@ember/runloop\", \"@ember/-internals/metal\"], function (_exports, _runloop, _metal) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n  @module ember\n  */\n\n  /**\n    ContainerProxyMixin is used to provide public access to specific\n    container functionality.\n  \n    @class ContainerProxyMixin\n    @private\n  */\n  var containerProxyMixin = {\n    /**\n     The container stores state.\n      @private\n     @property {Ember.Container} __container__\n     */\n    __container__: null,\n\n    /**\n     Returns an object that can be used to provide an owner to a\n     manually created instance.\n      Example:\n      ```\n     import { getOwner } from '@ember/application';\n      let owner = getOwner(this);\n      User.create(\n       owner.ownerInjection(),\n       { username: 'rwjblue' }\n     )\n     ```\n      @public\n     @method ownerInjection\n     @since 2.3.0\n     @return {Object}\n    */\n    ownerInjection() {\n      return this.__container__.ownerInjection();\n    },\n\n    /**\n     Given a fullName return a corresponding instance.\n      The default behavior is for lookup to return a singleton instance.\n     The singleton is scoped to the container, allowing multiple containers\n     to all have their own locally scoped singletons.\n      ```javascript\n     let registry = new Registry();\n     let container = registry.container();\n      registry.register('api:twitter', Twitter);\n      let twitter = container.lookup('api:twitter');\n      twitter instanceof Twitter; // => true\n      // by default the container will return singletons\n     let twitter2 = container.lookup('api:twitter');\n     twitter2 instanceof Twitter; // => true\n      twitter === twitter2; //=> true\n     ```\n      If singletons are not wanted an optional flag can be provided at lookup.\n      ```javascript\n     let registry = new Registry();\n     let container = registry.container();\n      registry.register('api:twitter', Twitter);\n      let twitter = container.lookup('api:twitter', { singleton: false });\n     let twitter2 = container.lookup('api:twitter', { singleton: false });\n      twitter === twitter2; //=> false\n     ```\n      @public\n     @method lookup\n     @param {String} fullName\n     @param {Object} options\n     @return {any}\n     */\n    lookup(fullName, options) {\n      return this.__container__.lookup(fullName, options);\n    },\n\n    destroy() {\n      var container = this.__container__;\n\n      if (container) {\n        (0, _runloop.join)(() => {\n          container.destroy();\n          (0, _runloop.schedule)('destroy', container, 'finalizeDestroy');\n        });\n      }\n\n      this._super();\n    },\n\n    /**\n    Given a fullName return a factory manager.\n     This method returns a manager which can be used for introspection of the\n    factory's class or for the creation of factory instances with initial\n    properties. The manager is an object with the following properties:\n     * `class` - The registered or resolved class.\n    * `create` - A function that will create an instance of the class with\n      any dependencies injected.\n     For example:\n     ```javascript\n    import { getOwner } from '@ember/application';\n     let owner = getOwner(otherInstance);\n    // the owner is commonly the `applicationInstance`, and can be accessed via\n    // an instance initializer.\n     let factory = owner.factoryFor('service:bespoke');\n     factory.class;\n    // The registered or resolved class. For example when used with an Ember-CLI\n    // app, this would be the default export from `app/services/bespoke.js`.\n     let instance = factory.create({\n      someProperty: 'an initial property value'\n    });\n    // Create an instance with any injections and the passed options as\n    // initial properties.\n    ```\n     Any instances created via the factory's `.create()` method *must* be destroyed\n    manually by the caller of `.create()`. Typically, this is done during the creating\n    objects own `destroy` or `willDestroy` methods.\n     @public\n    @method factoryFor\n    @param {String} fullName\n    @param {Object} options\n    @return {FactoryManager}\n    */\n    factoryFor(fullName, options = {}) {\n      return this.__container__.factoryFor(fullName, options);\n    }\n\n  };\n\n  var _default = _metal.Mixin.create(containerProxyMixin);\n\n  _exports.default = _default;\n});","define(\"@ember/-internals/runtime/lib/mixins/copyable\", [\"exports\", \"@ember/-internals/metal\"], function (_exports, _metal) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n  @module ember\n  */\n\n  /**\n    Implements some standard methods for copying an object. Add this mixin to\n    any object you create that can create a copy of itself. This mixin is\n    added automatically to the built-in array.\n  \n    You should generally implement the `copy()` method to return a copy of the\n    receiver.\n  \n    @class Copyable\n    @namespace Ember\n    @since Ember 0.9\n    @deprecated Use 'ember-copy' addon instead\n    @private\n  */\n  var _default = _metal.Mixin.create({\n    /**\n      __Required.__ You must implement this method to apply this mixin.\n       Override to return a copy of the receiver. Default implementation raises\n      an exception.\n       @method copy\n      @param {Boolean} deep if `true`, a deep copy of the object should be made\n      @return {Object} copy of receiver\n      @private\n    */\n    copy: null\n  });\n\n  _exports.default = _default;\n});","define(\"@ember/-internals/runtime/lib/mixins/enumerable\", [\"exports\", \"@ember/-internals/metal\"], function (_exports, _metal) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n  @module @ember/enumerable\n  @private\n  */\n\n  /**\n    The methods in this mixin have been moved to [MutableArray](/ember/release/classes/MutableArray). This mixin has\n    been intentionally preserved to avoid breaking Enumerable.detect checks\n    until the community migrates away from them.\n  \n    @class Enumerable\n    @private\n  */\n  var _default = _metal.Mixin.create();\n\n  _exports.default = _default;\n});","define(\"@ember/-internals/runtime/lib/mixins/evented\", [\"exports\", \"@ember/-internals/metal\"], function (_exports, _metal) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n  @module @ember/object\n  */\n\n  /**\n    This mixin allows for Ember objects to subscribe to and emit events.\n  \n    ```app/utils/person.js\n    import EmberObject from '@ember/object';\n    import Evented from '@ember/object/evented';\n  \n    export default EmberObject.extend(Evented, {\n      greet() {\n        // ...\n        this.trigger('greet');\n      }\n    });\n    ```\n  \n    ```javascript\n    var person = Person.create();\n  \n    person.on('greet', function() {\n      console.log('Our person has greeted');\n    });\n  \n    person.greet();\n  \n    // outputs: 'Our person has greeted'\n    ```\n  \n    You can also chain multiple event subscriptions:\n  \n    ```javascript\n    person.on('greet', function() {\n      console.log('Our person has greeted');\n    }).one('greet', function() {\n      console.log('Offer one-time special');\n    }).off('event', this, forgetThis);\n    ```\n  \n    @class Evented\n    @public\n   */\n  var _default = _metal.Mixin.create({\n    /**\n      Subscribes to a named event with given function.\n       ```javascript\n      person.on('didLoad', function() {\n        // fired once the person has loaded\n      });\n      ```\n       An optional target can be passed in as the 2nd argument that will\n      be set as the \"this\" for the callback. This is a good way to give your\n      function access to the object triggering the event. When the target\n      parameter is used the callback method becomes the third argument.\n       @method on\n      @param {String} name The name of the event\n      @param {Object} [target] The \"this\" binding for the callback\n      @param {Function|String} method A function or the name of a function to be called on `target`\n      @return this\n      @public\n    */\n    on(name, target, method) {\n      (0, _metal.addListener)(this, name, target, method);\n      return this;\n    },\n\n    /**\n      Subscribes a function to a named event and then cancels the subscription\n      after the first time the event is triggered. It is good to use ``one`` when\n      you only care about the first time an event has taken place.\n       This function takes an optional 2nd argument that will become the \"this\"\n      value for the callback. When the target parameter is used the callback method\n      becomes the third argument.\n       @method one\n      @param {String} name The name of the event\n      @param {Object} [target] The \"this\" binding for the callback\n      @param {Function|String} method A function or the name of a function to be called on `target`\n      @return this\n      @public\n    */\n    one(name, target, method) {\n      (0, _metal.addListener)(this, name, target, method, true);\n      return this;\n    },\n\n    /**\n      Triggers a named event for the object. Any additional arguments\n      will be passed as parameters to the functions that are subscribed to the\n      event.\n       ```javascript\n      person.on('didEat', function(food) {\n        console.log('person ate some ' + food);\n      });\n       person.trigger('didEat', 'broccoli');\n       // outputs: person ate some broccoli\n      ```\n      @method trigger\n      @param {String} name The name of the event\n      @param {Object...} args Optional arguments to pass on\n      @public\n    */\n    trigger(name, ...args) {\n      (0, _metal.sendEvent)(this, name, args);\n    },\n\n    /**\n      Cancels subscription for given name, target, and method.\n       @method off\n      @param {String} name The name of the event\n      @param {Object} target The target of the subscription\n      @param {Function|String} method The function or the name of a function of the subscription\n      @return this\n      @public\n    */\n    off(name, target, method) {\n      (0, _metal.removeListener)(this, name, target, method);\n      return this;\n    },\n\n    /**\n      Checks to see if object has any subscriptions for named event.\n       @method has\n      @param {String} name The name of the event\n      @return {Boolean} does the object have a subscription for event\n      @public\n     */\n    has(name) {\n      return (0, _metal.hasListeners)(this, name);\n    }\n\n  });\n\n  _exports.default = _default;\n});","define(\"@ember/-internals/runtime/lib/mixins/mutable_enumerable\", [\"exports\", \"@ember/-internals/runtime/lib/mixins/enumerable\", \"@ember/-internals/metal\"], function (_exports, _enumerable, _metal) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n  @module ember\n  */\n\n  /**\n    The methods in this mixin have been moved to MutableArray. This mixin has\n    been intentionally preserved to avoid breaking MutableEnumerable.detect\n    checks until the community migrates away from them.\n  \n    @class MutableEnumerable\n    @namespace Ember\n    @uses Enumerable\n    @private\n  */\n  var _default = _metal.Mixin.create(_enumerable.default);\n\n  _exports.default = _default;\n});","define(\"@ember/-internals/runtime/lib/mixins/observable\", [\"exports\", \"@ember/-internals/metal\", \"@ember/debug\"], function (_exports, _metal, _debug) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n  @module @ember/object\n  */\n\n  /**\n    ## Overview\n  \n    This mixin provides properties and property observing functionality, core\n    features of the Ember object model.\n  \n    Properties and observers allow one object to observe changes to a\n    property on another object. This is one of the fundamental ways that\n    models, controllers and views communicate with each other in an Ember\n    application.\n  \n    Any object that has this mixin applied can be used in observer\n    operations. That includes `EmberObject` and most objects you will\n    interact with as you write your Ember application.\n  \n    Note that you will not generally apply this mixin to classes yourself,\n    but you will use the features provided by this module frequently, so it\n    is important to understand how to use it.\n  \n    ## Using `get()` and `set()`\n  \n    Because of Ember's support for bindings and observers, you will always\n    access properties using the get method, and set properties using the\n    set method. This allows the observing objects to be notified and\n    computed properties to be handled properly.\n  \n    More documentation about `get` and `set` are below.\n  \n    ## Observing Property Changes\n  \n    You typically observe property changes simply by using the `observer`\n    function in classes that you write.\n  \n    For example:\n  \n    ```javascript\n    import { observer } from '@ember/object';\n    import EmberObject from '@ember/object';\n  \n    EmberObject.extend({\n      valueObserver: observer('value', function(sender, key, value, rev) {\n        // Executes whenever the \"value\" property changes\n        // See the addObserver method for more information about the callback arguments\n      })\n    });\n    ```\n  \n    Although this is the most common way to add an observer, this capability\n    is actually built into the `EmberObject` class on top of two methods\n    defined in this mixin: `addObserver` and `removeObserver`. You can use\n    these two methods to add and remove observers yourself if you need to\n    do so at runtime.\n  \n    To add an observer for a property, call:\n  \n    ```javascript\n    object.addObserver('propertyKey', targetObject, targetAction)\n    ```\n  \n    This will call the `targetAction` method on the `targetObject` whenever\n    the value of the `propertyKey` changes.\n  \n    Note that if `propertyKey` is a computed property, the observer will be\n    called when any of the property dependencies are changed, even if the\n    resulting value of the computed property is unchanged. This is necessary\n    because computed properties are not computed until `get` is called.\n  \n    @class Observable\n    @public\n  */\n  var _default = _metal.Mixin.create({\n    /**\n      Retrieves the value of a property from the object.\n       This method is usually similar to using `object[keyName]` or `object.keyName`,\n      however it supports both computed properties and the unknownProperty\n      handler.\n       Because `get` unifies the syntax for accessing all these kinds\n      of properties, it can make many refactorings easier, such as replacing a\n      simple property with a computed property, or vice versa.\n       ### Computed Properties\n       Computed properties are methods defined with the `property` modifier\n      declared at the end, such as:\n       ```javascript\n      import { computed } from '@ember/object';\n       fullName: computed('firstName', 'lastName', function() {\n        return this.get('firstName') + ' ' + this.get('lastName');\n      })\n      ```\n       When you call `get` on a computed property, the function will be\n      called and the return value will be returned instead of the function\n      itself.\n       ### Unknown Properties\n       Likewise, if you try to call `get` on a property whose value is\n      `undefined`, the `unknownProperty()` method will be called on the object.\n      If this method returns any value other than `undefined`, it will be returned\n      instead. This allows you to implement \"virtual\" properties that are\n      not defined upfront.\n       @method get\n      @param {String} keyName The property to retrieve\n      @return {Object} The property value or undefined.\n      @public\n    */\n    get(keyName) {\n      return (0, _metal.get)(this, keyName);\n    },\n\n    /**\n      To get the values of multiple properties at once, call `getProperties`\n      with a list of strings or an array:\n       ```javascript\n      record.getProperties('firstName', 'lastName', 'zipCode');\n      // { firstName: 'John', lastName: 'Doe', zipCode: '10011' }\n      ```\n       is equivalent to:\n       ```javascript\n      record.getProperties(['firstName', 'lastName', 'zipCode']);\n      // { firstName: 'John', lastName: 'Doe', zipCode: '10011' }\n      ```\n       @method getProperties\n      @param {String...|Array} list of keys to get\n      @return {Object}\n      @public\n    */\n    getProperties(...args) {\n      return (0, _metal.getProperties)(...[this].concat(args));\n    },\n\n    /**\n      Sets the provided key or path to the value.\n       ```javascript\n      record.set(\"key\", value);\n      ```\n       This method is generally very similar to calling `object[\"key\"] = value` or\n      `object.key = value`, except that it provides support for computed\n      properties, the `setUnknownProperty()` method and property observers.\n       ### Computed Properties\n       If you try to set a value on a key that has a computed property handler\n      defined (see the `get()` method for an example), then `set()` will call\n      that method, passing both the value and key instead of simply changing\n      the value itself. This is useful for those times when you need to\n      implement a property that is composed of one or more member\n      properties.\n       ### Unknown Properties\n       If you try to set a value on a key that is undefined in the target\n      object, then the `setUnknownProperty()` handler will be called instead. This\n      gives you an opportunity to implement complex \"virtual\" properties that\n      are not predefined on the object. If `setUnknownProperty()` returns\n      undefined, then `set()` will simply set the value on the object.\n       ### Property Observers\n       In addition to changing the property, `set()` will also register a property\n      change with the object. Unless you have placed this call inside of a\n      `beginPropertyChanges()` and `endPropertyChanges(),` any \"local\" observers\n      (i.e. observer methods declared on the same object), will be called\n      immediately. Any \"remote\" observers (i.e. observer methods declared on\n      another object) will be placed in a queue and called at a later time in a\n      coalesced manner.\n       @method set\n      @param {String} keyName The property to set\n      @param {Object} value The value to set or `null`.\n      @return {Object} The passed value\n      @public\n    */\n    set(keyName, value) {\n      return (0, _metal.set)(this, keyName, value);\n    },\n\n    /**\n      Sets a list of properties at once. These properties are set inside\n      a single `beginPropertyChanges` and `endPropertyChanges` batch, so\n      observers will be buffered.\n       ```javascript\n      record.setProperties({ firstName: 'Charles', lastName: 'Jolley' });\n      ```\n       @method setProperties\n      @param {Object} hash the hash of keys and values to set\n      @return {Object} The passed in hash\n      @public\n    */\n    setProperties(hash) {\n      return (0, _metal.setProperties)(this, hash);\n    },\n\n    /**\n      Begins a grouping of property changes.\n       You can use this method to group property changes so that notifications\n      will not be sent until the changes are finished. If you plan to make a\n      large number of changes to an object at one time, you should call this\n      method at the beginning of the changes to begin deferring change\n      notifications. When you are done making changes, call\n      `endPropertyChanges()` to deliver the deferred change notifications and end\n      deferring.\n       @method beginPropertyChanges\n      @return {Observable}\n      @private\n    */\n    beginPropertyChanges() {\n      (0, _metal.beginPropertyChanges)();\n      return this;\n    },\n\n    /**\n      Ends a grouping of property changes.\n       You can use this method to group property changes so that notifications\n      will not be sent until the changes are finished. If you plan to make a\n      large number of changes to an object at one time, you should call\n      `beginPropertyChanges()` at the beginning of the changes to defer change\n      notifications. When you are done making changes, call this method to\n      deliver the deferred change notifications and end deferring.\n       @method endPropertyChanges\n      @return {Observable}\n      @private\n    */\n    endPropertyChanges() {\n      (0, _metal.endPropertyChanges)();\n      return this;\n    },\n\n    /**\n      Notify the observer system that a property has just changed.\n       Sometimes you need to change a value directly or indirectly without\n      actually calling `get()` or `set()` on it. In this case, you can use this\n      method instead. Calling this method will notify all observers that the\n      property has potentially changed value.\n       @method notifyPropertyChange\n      @param {String} keyName The property key to be notified about.\n      @return {Observable}\n      @public\n    */\n    notifyPropertyChange(keyName) {\n      (0, _metal.notifyPropertyChange)(this, keyName);\n      return this;\n    },\n\n    /**\n      Adds an observer on a property.\n       This is the core method used to register an observer for a property.\n       Once you call this method, any time the key's value is set, your observer\n      will be notified. Note that the observers are triggered any time the\n      value is set, regardless of whether it has actually changed. Your\n      observer should be prepared to handle that.\n       There are two common invocation patterns for `.addObserver()`:\n       - Passing two arguments:\n        - the name of the property to observe (as a string)\n        - the function to invoke (an actual function)\n      - Passing three arguments:\n        - the name of the property to observe (as a string)\n        - the target object (will be used to look up and invoke a\n          function on)\n        - the name of the function to invoke on the target object\n          (as a string).\n       ```app/components/my-component.js\n      import Component from '@ember/component';\n       export default Component.extend({\n        init() {\n          this._super(...arguments);\n           // the following are equivalent:\n           // using three arguments\n          this.addObserver('foo', this, 'fooDidChange');\n           // using two arguments\n          this.addObserver('foo', (...args) => {\n            this.fooDidChange(...args);\n          });\n        },\n         fooDidChange() {\n          // your custom logic code\n        }\n      });\n      ```\n       ### Observer Methods\n       Observer methods have the following signature:\n       ```app/components/my-component.js\n      import Component from '@ember/component';\n       export default Component.extend({\n        init() {\n          this._super(...arguments);\n          this.addObserver('foo', this, 'fooDidChange');\n        },\n         fooDidChange(sender, key, value, rev) {\n          // your code\n        }\n      });\n      ```\n       The `sender` is the object that changed. The `key` is the property that\n      changes. The `value` property is currently reserved and unused. The `rev`\n      is the last property revision of the object when it changed, which you can\n      use to detect if the key value has really changed or not.\n       Usually you will not need the value or revision parameters at\n      the end. In this case, it is common to write observer methods that take\n      only a sender and key value as parameters or, if you aren't interested in\n      any of these values, to write an observer that has no parameters at all.\n       @method addObserver\n      @param {String} key The key to observe\n      @param {Object} target The target object to invoke\n      @param {String|Function} method The method to invoke\n      @param {Boolean} sync Whether the observer is sync or not\n      @return {Observable}\n      @public\n    */\n    addObserver(key, target, method, sync) {\n      (0, _metal.addObserver)(this, key, target, method, sync);\n      return this;\n    },\n\n    /**\n      Remove an observer you have previously registered on this object. Pass\n      the same key, target, and method you passed to `addObserver()` and your\n      target will no longer receive notifications.\n       @method removeObserver\n      @param {String} key The key to observe\n      @param {Object} target The target object to invoke\n      @param {String|Function} method The method to invoke\n      @param {Boolean} sync Whether the observer is async or not\n      @return {Observable}\n      @public\n    */\n    removeObserver(key, target, method, sync) {\n      (0, _metal.removeObserver)(this, key, target, method, sync);\n      return this;\n    },\n\n    /**\n      Returns `true` if the object currently has observers registered for a\n      particular key. You can use this method to potentially defer performing\n      an expensive action until someone begins observing a particular property\n      on the object.\n       @method hasObserverFor\n      @param {String} key Key to check\n      @return {Boolean}\n      @private\n    */\n    hasObserverFor(key) {\n      return (0, _metal.hasListeners)(this, `${key}:change`);\n    },\n\n    /**\n      Retrieves the value of a property, or a default value in the case that the\n      property returns `undefined`.\n       ```javascript\n      person.getWithDefault('lastName', 'Doe');\n      ```\n       @method getWithDefault\n      @param {String} keyName The name of the property to retrieve\n      @param {Object} defaultValue The value to return if the property value is undefined\n      @return {Object} The property value or the defaultValue.\n      @public\n    */\n    getWithDefault(keyName, defaultValue) {\n      return (0, _metal.getWithDefault)(this, keyName, defaultValue);\n    },\n\n    /**\n      Set the value of a property to the current value plus some amount.\n       ```javascript\n      person.incrementProperty('age');\n      team.incrementProperty('score', 2);\n      ```\n       @method incrementProperty\n      @param {String} keyName The name of the property to increment\n      @param {Number} increment The amount to increment by. Defaults to 1\n      @return {Number} The new property value\n      @public\n    */\n    incrementProperty(keyName, increment = 1) {\n      (true && !(!isNaN(parseFloat(increment)) && isFinite(increment)) && (0, _debug.assert)('Must pass a numeric value to incrementProperty', !isNaN(parseFloat(increment)) && isFinite(increment)));\n      return (0, _metal.set)(this, keyName, (parseFloat((0, _metal.get)(this, keyName)) || 0) + increment);\n    },\n\n    /**\n      Set the value of a property to the current value minus some amount.\n       ```javascript\n      player.decrementProperty('lives');\n      orc.decrementProperty('health', 5);\n      ```\n       @method decrementProperty\n      @param {String} keyName The name of the property to decrement\n      @param {Number} decrement The amount to decrement by. Defaults to 1\n      @return {Number} The new property value\n      @public\n    */\n    decrementProperty(keyName, decrement = 1) {\n      (true && !(!isNaN(parseFloat(decrement)) && isFinite(decrement)) && (0, _debug.assert)('Must pass a numeric value to decrementProperty', !isNaN(parseFloat(decrement)) && isFinite(decrement)));\n      return (0, _metal.set)(this, keyName, ((0, _metal.get)(this, keyName) || 0) - decrement);\n    },\n\n    /**\n      Set the value of a boolean property to the opposite of its\n      current value.\n       ```javascript\n      starship.toggleProperty('warpDriveEngaged');\n      ```\n       @method toggleProperty\n      @param {String} keyName The name of the property to toggle\n      @return {Boolean} The new property value\n      @public\n    */\n    toggleProperty(keyName) {\n      return (0, _metal.set)(this, keyName, !(0, _metal.get)(this, keyName));\n    },\n\n    /**\n      Returns the cached value of a computed property, if it exists.\n      This allows you to inspect the value of a computed property\n      without accidentally invoking it if it is intended to be\n      generated lazily.\n       @method cacheFor\n      @param {String} keyName\n      @return {Object} The cached value of the computed property, if any\n      @public\n    */\n    cacheFor(keyName) {\n      return (0, _metal.getCachedValueFor)(this, keyName);\n    }\n\n  });\n\n  _exports.default = _default;\n});","define(\"@ember/-internals/runtime/lib/mixins/promise_proxy\", [\"exports\", \"@ember/-internals/metal\", \"@ember/error\"], function (_exports, _metal, _error) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n    @module @ember/object\n  */\n  function tap(proxy, promise) {\n    (0, _metal.setProperties)(proxy, {\n      isFulfilled: false,\n      isRejected: false\n    });\n    return promise.then(value => {\n      if (!proxy.isDestroyed && !proxy.isDestroying) {\n        (0, _metal.setProperties)(proxy, {\n          content: value,\n          isFulfilled: true\n        });\n      }\n\n      return value;\n    }, reason => {\n      if (!proxy.isDestroyed && !proxy.isDestroying) {\n        (0, _metal.setProperties)(proxy, {\n          reason,\n          isRejected: true\n        });\n      }\n\n      throw reason;\n    }, 'Ember: PromiseProxy');\n  }\n  /**\n    A low level mixin making ObjectProxy promise-aware.\n  \n    ```javascript\n    import { resolve } from 'rsvp';\n    import $ from 'jquery';\n    import ObjectProxy from '@ember/object/proxy';\n    import PromiseProxyMixin from '@ember/object/promise-proxy-mixin';\n  \n    let ObjectPromiseProxy = ObjectProxy.extend(PromiseProxyMixin);\n  \n    let proxy = ObjectPromiseProxy.create({\n      promise: resolve($.getJSON('/some/remote/data.json'))\n    });\n  \n    proxy.then(function(json){\n       // the json\n    }, function(reason) {\n       // the reason why you have no json\n    });\n    ```\n  \n    the proxy has bindable attributes which\n    track the promises life cycle\n  \n    ```javascript\n    proxy.get('isPending')   //=> true\n    proxy.get('isSettled')  //=> false\n    proxy.get('isRejected')  //=> false\n    proxy.get('isFulfilled') //=> false\n    ```\n  \n    When the $.getJSON completes, and the promise is fulfilled\n    with json, the life cycle attributes will update accordingly.\n    Note that $.getJSON doesn't return an ECMA specified promise,\n    it is useful to wrap this with an `RSVP.resolve` so that it behaves\n    as a spec compliant promise.\n  \n    ```javascript\n    proxy.get('isPending')   //=> false\n    proxy.get('isSettled')   //=> true\n    proxy.get('isRejected')  //=> false\n    proxy.get('isFulfilled') //=> true\n    ```\n  \n    As the proxy is an ObjectProxy, and the json now its content,\n    all the json properties will be available directly from the proxy.\n  \n    ```javascript\n    // Assuming the following json:\n    {\n      firstName: 'Stefan',\n      lastName: 'Penner'\n    }\n  \n    // both properties will accessible on the proxy\n    proxy.get('firstName') //=> 'Stefan'\n    proxy.get('lastName')  //=> 'Penner'\n    ```\n  \n    @class PromiseProxyMixin\n    @public\n  */\n\n\n  var _default = _metal.Mixin.create({\n    /**\n      If the proxied promise is rejected this will contain the reason\n      provided.\n       @property reason\n      @default null\n      @public\n    */\n    reason: null,\n\n    /**\n      Once the proxied promise has settled this will become `false`.\n       @property isPending\n      @default true\n      @public\n    */\n    isPending: (0, _metal.computed)('isSettled', function () {\n      return !(0, _metal.get)(this, 'isSettled');\n    }).readOnly(),\n\n    /**\n      Once the proxied promise has settled this will become `true`.\n       @property isSettled\n      @default false\n      @public\n    */\n    isSettled: (0, _metal.computed)('isRejected', 'isFulfilled', function () {\n      return (0, _metal.get)(this, 'isRejected') || (0, _metal.get)(this, 'isFulfilled');\n    }).readOnly(),\n\n    /**\n      Will become `true` if the proxied promise is rejected.\n       @property isRejected\n      @default false\n      @public\n    */\n    isRejected: false,\n\n    /**\n      Will become `true` if the proxied promise is fulfilled.\n       @property isFulfilled\n      @default false\n      @public\n    */\n    isFulfilled: false,\n\n    /**\n      The promise whose fulfillment value is being proxied by this object.\n       This property must be specified upon creation, and should not be\n      changed once created.\n       Example:\n       ```javascript\n      import ObjectProxy from '@ember/object/proxy';\n      import PromiseProxyMixin from '@ember/object/promise-proxy-mixin';\n       ObjectProxy.extend(PromiseProxyMixin).create({\n        promise: <thenable>\n      });\n      ```\n       @property promise\n      @public\n    */\n    promise: (0, _metal.computed)({\n      get() {\n        throw new _error.default(\"PromiseProxy's promise must be set\");\n      },\n\n      set(key, promise) {\n        return tap(this, promise);\n      }\n\n    }),\n\n    /**\n      An alias to the proxied promise's `then`.\n       See RSVP.Promise.then.\n       @method then\n      @param {Function} callback\n      @return {RSVP.Promise}\n      @public\n    */\n    then: promiseAlias('then'),\n\n    /**\n      An alias to the proxied promise's `catch`.\n       See RSVP.Promise.catch.\n       @method catch\n      @param {Function} callback\n      @return {RSVP.Promise}\n      @since 1.3.0\n      @public\n    */\n    catch: promiseAlias('catch'),\n\n    /**\n      An alias to the proxied promise's `finally`.\n       See RSVP.Promise.finally.\n       @method finally\n      @param {Function} callback\n      @return {RSVP.Promise}\n      @since 1.3.0\n      @public\n    */\n    finally: promiseAlias('finally')\n  });\n\n  _exports.default = _default;\n\n  function promiseAlias(name) {\n    return function () {\n      var promise = (0, _metal.get)(this, 'promise');\n      return promise[name](...arguments);\n    };\n  }\n});","define(\"@ember/-internals/runtime/lib/mixins/registry_proxy\", [\"exports\", \"@ember/debug\", \"@ember/-internals/metal\"], function (_exports, _debug, _metal) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n  @module ember\n  */\n\n  /**\n    RegistryProxyMixin is used to provide public access to specific\n    registry functionality.\n  \n    @class RegistryProxyMixin\n    @private\n  */\n  var _default = _metal.Mixin.create({\n    __registry__: null,\n\n    /**\n     Given a fullName return the corresponding factory.\n      @public\n     @method resolveRegistration\n     @param {String} fullName\n     @return {Function} fullName's factory\n     */\n    resolveRegistration(fullName, options) {\n      (true && !(this.__registry__.isValidFullName(fullName)) && (0, _debug.assert)('fullName must be a proper full name', this.__registry__.isValidFullName(fullName)));\n      return this.__registry__.resolve(fullName, options);\n    },\n\n    /**\n      Registers a factory that can be used for dependency injection (with\n      `inject`) or for service lookup. Each factory is registered with\n      a full name including two parts: `type:name`.\n       A simple example:\n       ```javascript\n      import Application from '@ember/application';\n      import EmberObject from '@ember/object';\n       let App = Application.create();\n       App.Orange = EmberObject.extend();\n      App.register('fruit:favorite', App.Orange);\n      ```\n       Ember will resolve factories from the `App` namespace automatically.\n      For example `App.CarsController` will be discovered and returned if\n      an application requests `controller:cars`.\n       An example of registering a controller with a non-standard name:\n       ```javascript\n      import Application from '@ember/application';\n      import Controller from '@ember/controller';\n       let App = Application.create();\n      let Session = Controller.extend();\n       App.register('controller:session', Session);\n       // The Session controller can now be treated like a normal controller,\n      // despite its non-standard name.\n      App.ApplicationController = Controller.extend({\n        needs: ['session']\n      });\n      ```\n       Registered factories are **instantiated** by having `create`\n      called on them. Additionally they are **singletons**, each time\n      they are looked up they return the same instance.\n       Some examples modifying that default behavior:\n       ```javascript\n      import Application from '@ember/application';\n      import EmberObject from '@ember/object';\n       let App = Application.create();\n       App.Person = EmberObject.extend();\n      App.Orange = EmberObject.extend();\n      App.Email = EmberObject.extend();\n      App.session = EmberObject.create();\n       App.register('model:user', App.Person, { singleton: false });\n      App.register('fruit:favorite', App.Orange);\n      App.register('communication:main', App.Email, { singleton: false });\n      App.register('session', App.session, { instantiate: false });\n      ```\n       @method register\n      @param  fullName {String} type:name (e.g., 'model:user')\n      @param  factory {any} (e.g., App.Person)\n      @param  options {Object} (optional) disable instantiation or singleton usage\n      @public\n     */\n    register: registryAlias('register'),\n\n    /**\n     Unregister a factory.\n      ```javascript\n     import Application from '@ember/application';\n     import EmberObject from '@ember/object';\n      let App = Application.create();\n     let User = EmberObject.extend();\n     App.register('model:user', User);\n      App.resolveRegistration('model:user').create() instanceof User //=> true\n      App.unregister('model:user')\n     App.resolveRegistration('model:user') === undefined //=> true\n     ```\n      @public\n     @method unregister\n     @param {String} fullName\n     */\n    unregister: registryAlias('unregister'),\n\n    /**\n     Check if a factory is registered.\n      @public\n     @method hasRegistration\n     @param {String} fullName\n     @return {Boolean}\n     */\n    hasRegistration: registryAlias('has'),\n\n    /**\n     Return a specific registered option for a particular factory.\n      @public\n     @method registeredOption\n     @param  {String} fullName\n     @param  {String} optionName\n     @return {Object} options\n     */\n    registeredOption: registryAlias('getOption'),\n\n    /**\n     Register options for a particular factory.\n      @public\n     @method registerOptions\n     @param {String} fullName\n     @param {Object} options\n     */\n    registerOptions: registryAlias('options'),\n\n    /**\n     Return registered options for a particular factory.\n      @public\n     @method registeredOptions\n     @param  {String} fullName\n     @return {Object} options\n     */\n    registeredOptions: registryAlias('getOptions'),\n\n    /**\n     Allow registering options for all factories of a type.\n      ```javascript\n     import Application from '@ember/application';\n      let App = Application.create();\n     let appInstance = App.buildInstance();\n      // if all of type `connection` must not be singletons\n     appInstance.registerOptionsForType('connection', { singleton: false });\n      appInstance.register('connection:twitter', TwitterConnection);\n     appInstance.register('connection:facebook', FacebookConnection);\n      let twitter = appInstance.lookup('connection:twitter');\n     let twitter2 = appInstance.lookup('connection:twitter');\n      twitter === twitter2; // => false\n      let facebook = appInstance.lookup('connection:facebook');\n     let facebook2 = appInstance.lookup('connection:facebook');\n      facebook === facebook2; // => false\n     ```\n      @public\n     @method registerOptionsForType\n     @param {String} type\n     @param {Object} options\n     */\n    registerOptionsForType: registryAlias('optionsForType'),\n\n    /**\n     Return the registered options for all factories of a type.\n      @public\n     @method registeredOptionsForType\n     @param {String} type\n     @return {Object} options\n     */\n    registeredOptionsForType: registryAlias('getOptionsForType'),\n\n    /**\n      Define a dependency injection onto a specific factory or all factories\n      of a type.\n       When Ember instantiates a controller, view, or other framework component\n      it can attach a dependency to that component. This is often used to\n      provide services to a set of framework components.\n       An example of providing a session object to all controllers:\n       ```javascript\n      import { alias } from '@ember/object/computed';\n      import Application from '@ember/application';\n      import Controller from '@ember/controller';\n      import EmberObject from '@ember/object';\n       let App = Application.create();\n      let Session = EmberObject.extend({ isAuthenticated: false });\n       // A factory must be registered before it can be injected\n      App.register('session:main', Session);\n       // Inject 'session:main' onto all factories of the type 'controller'\n      // with the name 'session'\n      App.inject('controller', 'session', 'session:main');\n       App.IndexController = Controller.extend({\n        isLoggedIn: alias('session.isAuthenticated')\n      });\n      ```\n       Injections can also be performed on specific factories.\n       ```javascript\n      App.inject(<full_name or type>, <property name>, <full_name>)\n      App.inject('route', 'source', 'source:main')\n      App.inject('route:application', 'email', 'model:email')\n      ```\n       It is important to note that injections can only be performed on\n      classes that are instantiated by Ember itself. Instantiating a class\n      directly (via `create` or `new`) bypasses the dependency injection\n      system.\n       @public\n      @method inject\n      @param  factoryNameOrType {String}\n      @param  property {String}\n      @param  injectionName {String}\n    **/\n    inject: registryAlias('injection')\n  });\n\n  _exports.default = _default;\n\n  function registryAlias(name) {\n    return function () {\n      return this.__registry__[name](...arguments);\n    };\n  }\n});","define(\"@ember/-internals/runtime/lib/mixins/target_action_support\", [\"exports\", \"@ember/-internals/environment\", \"@ember/-internals/metal\", \"@ember/debug\"], function (_exports, _environment, _metal, _debug) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n  @module ember\n  */\n\n  /**\n  `Ember.TargetActionSupport` is a mixin that can be included in a class\n  to add a `triggerAction` method with semantics similar to the Handlebars\n  `{{action}}` helper. In normal Ember usage, the `{{action}}` helper is\n  usually the best choice. This mixin is most often useful when you are\n  doing more complex event handling in Components.\n  \n  @class TargetActionSupport\n  @namespace Ember\n  @extends Mixin\n  @private\n  */\n  var _default = _metal.Mixin.create({\n    target: null,\n    action: null,\n    actionContext: null,\n    actionContextObject: (0, _metal.computed)('actionContext', function () {\n      var actionContext = (0, _metal.get)(this, 'actionContext');\n\n      if (typeof actionContext === 'string') {\n        var value = (0, _metal.get)(this, actionContext);\n\n        if (value === undefined) {\n          value = (0, _metal.get)(_environment.context.lookup, actionContext);\n        }\n\n        return value;\n      } else {\n        return actionContext;\n      }\n    }),\n\n    /**\n    Send an `action` with an `actionContext` to a `target`. The action, actionContext\n    and target will be retrieved from properties of the object. For example:\n     ```javascript\n    import { alias } from '@ember/object/computed';\n     App.SaveButtonView = Ember.View.extend(Ember.TargetActionSupport, {\n      target: alias('controller'),\n      action: 'save',\n      actionContext: alias('context'),\n      click() {\n        this.triggerAction(); // Sends the `save` action, along with the current context\n                              // to the current controller\n      }\n    });\n    ```\n     The `target`, `action`, and `actionContext` can be provided as properties of\n    an optional object argument to `triggerAction` as well.\n     ```javascript\n    App.SaveButtonView = Ember.View.extend(Ember.TargetActionSupport, {\n      click() {\n        this.triggerAction({\n          action: 'save',\n          target: this.get('controller'),\n          actionContext: this.get('context')\n        }); // Sends the `save` action, along with the current context\n            // to the current controller\n      }\n    });\n    ```\n     The `actionContext` defaults to the object you are mixing `TargetActionSupport` into.\n    But `target` and `action` must be specified either as properties or with the argument\n    to `triggerAction`, or a combination:\n     ```javascript\n    import { alias } from '@ember/object/computed';\n     App.SaveButtonView = Ember.View.extend(Ember.TargetActionSupport, {\n      target: alias('controller'),\n      click() {\n        this.triggerAction({\n          action: 'save'\n        }); // Sends the `save` action, along with a reference to `this`,\n            // to the current controller\n      }\n    });\n    ```\n     @method triggerAction\n    @param opts {Object} (optional, with the optional keys action, target and/or actionContext)\n    @return {Boolean} true if the action was sent successfully and did not return false\n    @private\n    */\n    triggerAction(opts = {}) {\n      var {\n        action,\n        target,\n        actionContext\n      } = opts;\n      action = action || (0, _metal.get)(this, 'action');\n      target = target || getTarget(this);\n\n      if (actionContext === undefined) {\n        actionContext = (0, _metal.get)(this, 'actionContextObject') || this;\n      }\n\n      if (target && action) {\n        var ret;\n\n        if (target.send) {\n          ret = target.send(...[action].concat(actionContext));\n        } else {\n          (true && !(typeof target[action] === 'function') && (0, _debug.assert)(`The action '${action}' did not exist on ${target}`, typeof target[action] === 'function'));\n          ret = target[action](...[].concat(actionContext));\n        }\n\n        if (ret !== false) {\n          return true;\n        }\n      }\n\n      return false;\n    }\n\n  });\n\n  _exports.default = _default;\n\n  function getTarget(instance) {\n    var target = (0, _metal.get)(instance, 'target');\n\n    if (target) {\n      if (typeof target === 'string') {\n        var value = (0, _metal.get)(instance, target);\n\n        if (value === undefined) {\n          value = (0, _metal.get)(_environment.context.lookup, target);\n        }\n\n        return value;\n      } else {\n        return target;\n      }\n    }\n\n    if (instance._target) {\n      return instance._target;\n    }\n\n    return null;\n  }\n});","define(\"@ember/-internals/runtime/lib/system/array_proxy\", [\"exports\", \"@ember/-internals/metal\", \"@ember/-internals/runtime/lib/system/object\", \"@ember/-internals/runtime/lib/mixins/array\", \"@ember/debug\", \"@glimmer/validator\"], function (_exports, _metal, _object, _array, _debug, _validator) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n  @module @ember/array\n  */\n  var ARRAY_OBSERVER_MAPPING = {\n    willChange: '_arrangedContentArrayWillChange',\n    didChange: '_arrangedContentArrayDidChange'\n  };\n  /**\n    An ArrayProxy wraps any other object that implements `Array` and/or\n    `MutableArray,` forwarding all requests. This makes it very useful for\n    a number of binding use cases or other cases where being able to swap\n    out the underlying array is useful.\n  \n    A simple example of usage:\n  \n    ```javascript\n    import { A } from '@ember/array';\n    import ArrayProxy from '@ember/array/proxy';\n  \n    let pets = ['dog', 'cat', 'fish'];\n    let ap = ArrayProxy.create({ content: A(pets) });\n  \n    ap.get('firstObject');                        // 'dog'\n    ap.set('content', ['amoeba', 'paramecium']);\n    ap.get('firstObject');                        // 'amoeba'\n    ```\n  \n    This class can also be useful as a layer to transform the contents of\n    an array, as they are accessed. This can be done by overriding\n    `objectAtContent`:\n  \n    ```javascript\n    import { A } from '@ember/array';\n    import ArrayProxy from '@ember/array/proxy';\n  \n    let pets = ['dog', 'cat', 'fish'];\n    let ap = ArrayProxy.create({\n        content: A(pets),\n        objectAtContent: function(idx) {\n            return this.get('content').objectAt(idx).toUpperCase();\n        }\n    });\n  \n    ap.get('firstObject'); // . 'DOG'\n    ```\n  \n    When overriding this class, it is important to place the call to\n    `_super` *after* setting `content` so the internal observers have\n    a chance to fire properly:\n  \n    ```javascript\n    import { A } from '@ember/array';\n    import ArrayProxy from '@ember/array/proxy';\n  \n    export default ArrayProxy.extend({\n      init() {\n        this.set('content', A(['dog', 'cat', 'fish']));\n        this._super(...arguments);\n      }\n    });\n    ```\n  \n    @class ArrayProxy\n    @extends EmberObject\n    @uses MutableArray\n    @public\n  */\n\n  class ArrayProxy extends _object.default {\n    init() {\n      super.init(...arguments);\n      /*\n        `this._objectsDirtyIndex` determines which indexes in the `this._objects`\n        cache are dirty.\n         If `this._objectsDirtyIndex === -1` then no indexes are dirty.\n        Otherwise, an index `i` is dirty if `i >= this._objectsDirtyIndex`.\n         Calling `objectAt` with a dirty index will cause the `this._objects`\n        cache to be recomputed.\n      */\n\n      this._objectsDirtyIndex = 0;\n      this._objects = null;\n      this._lengthDirty = true;\n      this._length = 0;\n      this._arrangedContent = null;\n      this._arrangedContentIsUpdating = false;\n      this._arrangedContentTag = null;\n      this._arrangedContentRevision = null;\n    }\n\n    [_metal.PROPERTY_DID_CHANGE]() {\n      this._revalidate();\n    }\n\n    [_metal.CUSTOM_TAG_FOR](key) {\n      if (key === '[]' || key === 'length') {\n        // revalidate eagerly if we're being tracked, since we no longer will\n        // be able to later on due to backtracking re-render assertion\n        this._revalidate();\n\n        return (0, _validator.combine)((0, _metal.getChainTagsForKey)(this, `arrangedContent.${key}`));\n      }\n\n      return (0, _validator.tagFor)(this, key);\n    }\n\n    willDestroy() {\n      this._removeArrangedContentArrayObserver();\n    }\n    /**\n      The content array. Must be an object that implements `Array` and/or\n      `MutableArray.`\n       @property content\n      @type EmberArray\n      @public\n    */\n\n    /**\n      Should actually retrieve the object at the specified index from the\n      content. You can override this method in subclasses to transform the\n      content item to something new.\n       This method will only be called if content is non-`null`.\n       @method objectAtContent\n      @param {Number} idx The index to retrieve.\n      @return {Object} the value or undefined if none found\n      @public\n    */\n\n\n    objectAtContent(idx) {\n      return (0, _metal.objectAt)((0, _metal.get)(this, 'arrangedContent'), idx);\n    } // See additional docs for `replace` from `MutableArray`:\n    // https://api.emberjs.com/ember/release/classes/MutableArray/methods/replace?anchor=replace\n\n\n    replace(idx, amt, objects) {\n      (true && !((0, _metal.get)(this, 'arrangedContent') === (0, _metal.get)(this, 'content')) && (0, _debug.assert)('Mutating an arranged ArrayProxy is not allowed', (0, _metal.get)(this, 'arrangedContent') === (0, _metal.get)(this, 'content')));\n      this.replaceContent(idx, amt, objects);\n    }\n    /**\n      Should actually replace the specified objects on the content array.\n      You can override this method in subclasses to transform the content item\n      into something new.\n       This method will only be called if content is non-`null`.\n       @method replaceContent\n      @param {Number} idx The starting index\n      @param {Number} amt The number of items to remove from the content.\n      @param {EmberArray} objects Optional array of objects to insert or null if no\n        objects.\n      @return {void}\n      @public\n    */\n\n\n    replaceContent(idx, amt, objects) {\n      (0, _metal.get)(this, 'content').replace(idx, amt, objects);\n    } // Overriding objectAt is not supported.\n\n\n    objectAt(idx) {\n      this._revalidate();\n\n      if (this._objects === null) {\n        this._objects = [];\n      }\n\n      if (this._objectsDirtyIndex !== -1 && idx >= this._objectsDirtyIndex) {\n        var arrangedContent = (0, _metal.get)(this, 'arrangedContent');\n\n        if (arrangedContent) {\n          var length = this._objects.length = (0, _metal.get)(arrangedContent, 'length');\n\n          for (var i = this._objectsDirtyIndex; i < length; i++) {\n            this._objects[i] = this.objectAtContent(i);\n          }\n        } else {\n          this._objects.length = 0;\n        }\n\n        this._objectsDirtyIndex = -1;\n      }\n\n      return this._objects[idx];\n    } // Overriding length is not supported.\n\n\n    get length() {\n      this._revalidate();\n\n      if (this._lengthDirty) {\n        var arrangedContent = (0, _metal.get)(this, 'arrangedContent');\n        this._length = arrangedContent ? (0, _metal.get)(arrangedContent, 'length') : 0;\n        this._lengthDirty = false;\n      }\n\n      return this._length;\n    }\n\n    set length(value) {\n      var length = this.length;\n      var removedCount = length - value;\n      var added;\n\n      if (removedCount === 0) {\n        return;\n      } else if (removedCount < 0) {\n        added = new Array(-removedCount);\n        removedCount = 0;\n      }\n\n      var content = (0, _metal.get)(this, 'content');\n\n      if (content) {\n        (0, _metal.replace)(content, value, removedCount, added);\n\n        this._invalidate();\n      }\n    }\n\n    _updateArrangedContentArray() {\n      var oldLength = this._objects === null ? 0 : this._objects.length;\n      var arrangedContent = (0, _metal.get)(this, 'arrangedContent');\n      var newLength = arrangedContent ? (0, _metal.get)(arrangedContent, 'length') : 0;\n\n      this._removeArrangedContentArrayObserver();\n\n      this.arrayContentWillChange(0, oldLength, newLength);\n\n      this._invalidate();\n\n      this.arrayContentDidChange(0, oldLength, newLength);\n\n      this._addArrangedContentArrayObserver();\n    }\n\n    _addArrangedContentArrayObserver() {\n      var arrangedContent = (0, _metal.get)(this, 'arrangedContent');\n\n      if (arrangedContent && !arrangedContent.isDestroyed) {\n        (true && !(arrangedContent !== this) && (0, _debug.assert)(\"Can't set ArrayProxy's content to itself\", arrangedContent !== this));\n        (true && !((0, _array.isArray)(arrangedContent) || arrangedContent.isDestroyed) && (0, _debug.assert)(`ArrayProxy expects an Array or ArrayProxy, but you passed ${typeof arrangedContent}`, (0, _array.isArray)(arrangedContent) || arrangedContent.isDestroyed));\n        (0, _metal.addArrayObserver)(arrangedContent, this, ARRAY_OBSERVER_MAPPING);\n        this._arrangedContent = arrangedContent;\n      }\n    }\n\n    _removeArrangedContentArrayObserver() {\n      if (this._arrangedContent) {\n        (0, _metal.removeArrayObserver)(this._arrangedContent, this, ARRAY_OBSERVER_MAPPING);\n      }\n    }\n\n    _arrangedContentArrayWillChange() {}\n\n    _arrangedContentArrayDidChange(proxy, idx, removedCnt, addedCnt) {\n      this.arrayContentWillChange(idx, removedCnt, addedCnt);\n      var dirtyIndex = idx;\n\n      if (dirtyIndex < 0) {\n        var length = (0, _metal.get)(this._arrangedContent, 'length');\n        dirtyIndex += length + removedCnt - addedCnt;\n      }\n\n      if (this._objectsDirtyIndex === -1 || this._objectsDirtyIndex > dirtyIndex) {\n        this._objectsDirtyIndex = dirtyIndex;\n      }\n\n      this._lengthDirty = true;\n      this.arrayContentDidChange(idx, removedCnt, addedCnt);\n    }\n\n    _invalidate() {\n      this._objectsDirtyIndex = 0;\n      this._lengthDirty = true;\n    }\n\n    _revalidate() {\n      if (this._arrangedContentIsUpdating === true) return;\n\n      if (this._arrangedContentTag === null || !(0, _validator.validateTag)(this._arrangedContentTag, this._arrangedContentRevision)) {\n        if (this._arrangedContentTag === null) {\n          // This is the first time the proxy has been setup, only add the observer\n          // don't trigger any events\n          this._addArrangedContentArrayObserver();\n        } else {\n          this._arrangedContentIsUpdating = true;\n\n          this._updateArrangedContentArray();\n\n          this._arrangedContentIsUpdating = false;\n        }\n\n        this._arrangedContentTag = (0, _validator.combine)((0, _metal.getChainTagsForKey)(this, 'arrangedContent'));\n        this._arrangedContentRevision = (0, _validator.valueForTag)(this._arrangedContentTag);\n      }\n    }\n\n  }\n\n  _exports.default = ArrayProxy;\n  ArrayProxy.reopen(_array.MutableArray, {\n    /**\n      The array that the proxy pretends to be. In the default `ArrayProxy`\n      implementation, this and `content` are the same. Subclasses of `ArrayProxy`\n      can override this property to provide things like sorting and filtering.\n       @property arrangedContent\n      @public\n    */\n    arrangedContent: (0, _metal.alias)('content'),\n\n    // Array proxies don't need to notify when they change since their `[]` tag is\n    // already dependent on the `[]` tag of `arrangedContent`\n    arrayContentDidChange(startIdx, removeAmt, addAmt) {\n      return (0, _metal.arrayContentDidChange)(this, startIdx, removeAmt, addAmt, false);\n    }\n\n  });\n});","define(\"@ember/-internals/runtime/lib/system/core_object\", [\"exports\", \"@ember/-internals/container\", \"@ember/-internals/owner\", \"@ember/polyfills\", \"@ember/-internals/utils\", \"@ember/runloop\", \"@ember/-internals/meta\", \"@ember/-internals/metal\", \"@ember/-internals/runtime/lib/mixins/action_handler\", \"@ember/debug\"], function (_exports, _container, _owner, _polyfills, _utils, _runloop, _meta2, _metal, _action_handler, _debug) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.setFrameworkClass = setFrameworkClass;\n  _exports.default = void 0;\n\n  /**\n    @module @ember/object\n  */\n  var reopen = _metal.Mixin.prototype.reopen;\n  var wasApplied = new _polyfills._WeakSet();\n  var factoryMap = new WeakMap();\n  var debugOwnerMap;\n\n  if (true\n  /* DEBUG */\n  ) {\n    debugOwnerMap = new WeakMap();\n  }\n\n  var prototypeMixinMap = new WeakMap();\n  var initCalled = true\n  /* DEBUG */\n  ? new _polyfills._WeakSet() : undefined; // only used in debug builds to enable the proxy trap\n\n  var PASSED_FROM_CREATE = true\n  /* DEBUG */\n  ? (0, _utils.symbol)('PASSED_FROM_CREATE') : undefined;\n  var FRAMEWORK_CLASSES = (0, _utils.symbol)('FRAMEWORK_CLASS');\n\n  function setFrameworkClass(klass) {\n    klass[FRAMEWORK_CLASSES] = true;\n  }\n\n  function initialize(obj, properties) {\n    var m = (0, _meta2.meta)(obj);\n\n    if (properties !== undefined) {\n      (true && !(typeof properties === 'object' && properties !== null) && (0, _debug.assert)('EmberObject.create only accepts objects.', typeof properties === 'object' && properties !== null));\n      (true && !(!(properties instanceof _metal.Mixin)) && (0, _debug.assert)('EmberObject.create no longer supports mixing in other ' + 'definitions, use .extend & .create separately instead.', !(properties instanceof _metal.Mixin)));\n      var concatenatedProperties = obj.concatenatedProperties;\n      var mergedProperties = obj.mergedProperties;\n      var hasConcatenatedProps = concatenatedProperties !== undefined && concatenatedProperties.length > 0;\n      var hasMergedProps = mergedProperties !== undefined && mergedProperties.length > 0;\n      var keyNames = Object.keys(properties);\n\n      for (var i = 0; i < keyNames.length; i++) {\n        var keyName = keyNames[i];\n        var value = properties[keyName];\n        (true && !(!(0, _metal.isClassicDecorator)(value)) && (0, _debug.assert)('EmberObject.create no longer supports defining computed ' + 'properties. Define computed properties using extend() or reopen() ' + 'before calling create().', !(0, _metal.isClassicDecorator)(value)));\n        (true && !(!(typeof value === 'function' && value.toString().indexOf('._super') !== -1)) && (0, _debug.assert)('EmberObject.create no longer supports defining methods that call _super.', !(typeof value === 'function' && value.toString().indexOf('._super') !== -1)));\n        (true && !(!(keyName === 'actions' && _action_handler.default.detect(obj))) && (0, _debug.assert)('`actions` must be provided at extend time, not at create time, ' + 'when Ember.ActionHandler is used (i.e. views, controllers & routes).', !(keyName === 'actions' && _action_handler.default.detect(obj))));\n        var possibleDesc = (0, _metal.descriptorForProperty)(obj, keyName, m);\n        var isDescriptor = possibleDesc !== undefined;\n\n        if (!isDescriptor) {\n          var baseValue = obj[keyName];\n\n          if (hasConcatenatedProps && concatenatedProperties.indexOf(keyName) > -1) {\n            if (baseValue) {\n              value = (0, _utils.makeArray)(baseValue).concat(value);\n            } else {\n              value = (0, _utils.makeArray)(value);\n            }\n          }\n\n          if (hasMergedProps && mergedProperties.indexOf(keyName) > -1) {\n            value = (0, _polyfills.assign)({}, baseValue, value);\n          }\n        }\n\n        if (isDescriptor) {\n          possibleDesc.set(obj, keyName, value);\n        } else if (typeof obj.setUnknownProperty === 'function' && !(keyName in obj)) {\n          obj.setUnknownProperty(keyName, value);\n        } else {\n          if (true\n          /* DEBUG */\n          ) {\n            (0, _metal.defineProperty)(obj, keyName, null, value, m); // setup mandatory setter\n          } else {\n            obj[keyName] = value;\n          }\n        }\n      }\n    } // using DEBUG here to avoid the extraneous variable when not needed\n\n\n    if (true\n    /* DEBUG */\n    ) {\n      initCalled.add(obj);\n    }\n\n    obj.init(properties);\n    m.unsetInitializing();\n    var observerEvents = m.observerEvents();\n\n    if (observerEvents !== undefined) {\n      for (var _i = 0; _i < observerEvents.length; _i++) {\n        (0, _metal.activateObserver)(obj, observerEvents[_i].event, observerEvents[_i].sync);\n      }\n    }\n\n    (0, _metal.sendEvent)(obj, 'init', undefined, undefined, undefined, m);\n  }\n  /**\n    `CoreObject` is the base class for all Ember constructs. It establishes a\n    class system based on Ember's Mixin system, and provides the basis for the\n    Ember Object Model. `CoreObject` should generally not be used directly,\n    instead you should use `EmberObject`.\n  \n    ## Usage\n  \n    You can define a class by extending from `CoreObject` using the `extend`\n    method:\n  \n    ```js\n    const Person = CoreObject.extend({\n      name: 'Tomster',\n    });\n    ```\n  \n    For detailed usage, see the [Object Model](https://guides.emberjs.com/release/object-model/)\n    section of the guides.\n  \n    ## Usage with Native Classes\n  \n    Native JavaScript `class` syntax can be used to extend from any `CoreObject`\n    based class:\n  \n    ```js\n    class Person extends CoreObject {\n      init() {\n        super.init(...arguments);\n        this.name = 'Tomster';\n      }\n    }\n    ```\n  \n    Some notes about `class` usage:\n  \n    * `new` syntax is not currently supported with classes that extend from\n      `EmberObject` or `CoreObject`. You must continue to use the `create` method\n      when making new instances of classes, even if they are defined using native\n      class syntax. If you want to use `new` syntax, consider creating classes\n      which do _not_ extend from `EmberObject` or `CoreObject`. Ember features,\n      such as computed properties and decorators, will still work with base-less\n      classes.\n    * Instead of using `this._super()`, you must use standard `super` syntax in\n      native classes. See the [MDN docs on classes](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Classes#Super_class_calls_with_super)\n      for more details.\n    * Native classes support using [constructors](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Classes#Constructor)\n      to set up newly-created instances. Ember uses these to, among other things,\n      support features that need to retrieve other entities by name, like Service\n      injection and `getOwner`. To ensure your custom instance setup logic takes\n      place after this important work is done, avoid using the `constructor` in\n      favor of `init`.\n    * Properties passed to `create` will be available on the instance by the time\n      `init` runs, so any code that requires these values should work at that\n      time.\n    * Using native classes, and switching back to the old Ember Object model is\n      fully supported.\n  \n    @class CoreObject\n    @public\n  */\n\n\n  class CoreObject {\n    static _initFactory(factory) {\n      factoryMap.set(this, factory);\n    }\n\n    constructor(passedFromCreate) {\n      // pluck off factory\n      var initFactory = factoryMap.get(this.constructor);\n\n      if (initFactory !== undefined) {\n        factoryMap.delete(this.constructor);\n\n        _container.FACTORY_FOR.set(this, initFactory);\n      } // prepare prototype...\n\n\n      this.constructor.proto();\n      var self = this;\n\n      if (true\n      /* DEBUG */\n      && _utils.HAS_NATIVE_PROXY && typeof self.unknownProperty === 'function') {\n        var messageFor = (obj, property) => {\n          return `You attempted to access the \\`${String(property)}\\` property (of ${obj}).\\n` + `Since Ember 3.1, this is usually fine as you no longer need to use \\`.get()\\`\\n` + `to access computed properties. However, in this case, the object in question\\n` + `is a special kind of Ember object (a proxy). Therefore, it is still necessary\\n` + `to use \\`.get('${String(property)}')\\` in this case.\\n\\n` + `If you encountered this error because of third-party code that you don't control,\\n` + `there is more information at https://github.com/emberjs/ember.js/issues/16148, and\\n` + `you can help us improve this error message by telling us more about what happened in\\n` + `this situation.`;\n        };\n        /* globals Proxy Reflect */\n\n\n        self = new Proxy(this, {\n          get(target, property, receiver) {\n            if (property === _metal.PROXY_CONTENT) {\n              return target;\n            } else if ( // init called will be set on the proxy, not the target, so get with the receiver\n            !initCalled.has(receiver) || typeof property === 'symbol' || (0, _utils.isInternalSymbol)(property) || property === 'toJSON' || property === 'toString' || property === 'toStringExtension' || property === 'didDefineProperty' || property === 'willWatchProperty' || property === 'didUnwatchProperty' || property === 'didAddListener' || property === 'didRemoveListener' || property === 'isDescriptor' || property === '_onLookup' || property in target) {\n              return Reflect.get(target, property, receiver);\n            }\n\n            var value = target.unknownProperty.call(receiver, property);\n\n            if (typeof value !== 'function') {\n              (true && !(value === undefined || value === null) && (0, _debug.assert)(messageFor(receiver, property), value === undefined || value === null));\n            }\n          }\n\n        });\n\n        _container.FACTORY_FOR.set(self, initFactory);\n      } // disable chains\n\n\n      var m = (0, _meta2.meta)(self);\n      m.setInitializing();\n      (true && !((() => {\n        var owner = debugOwnerMap.get(this.constructor);\n        debugOwnerMap.delete(this.constructor);\n        return passedFromCreate !== undefined && (passedFromCreate === PASSED_FROM_CREATE || passedFromCreate === owner);\n      })()) && (0, _debug.assert)(`An EmberObject based class, ${this.constructor}, was not instantiated correctly. You may have either used \\`new\\` instead of \\`.create()\\`, or not passed arguments to your call to super in the constructor: \\`super(...arguments)\\`. If you are trying to use \\`new\\`, consider using native classes without extending from EmberObject.`, (() => {\n        var owner = debugOwnerMap.get(this.constructor);\n        debugOwnerMap.delete(this.constructor);\n        return passedFromCreate !== undefined && (passedFromCreate === PASSED_FROM_CREATE || passedFromCreate === owner);\n      })())); // only return when in debug builds and `self` is the proxy created above\n\n      if (true\n      /* DEBUG */\n      && self !== this) {\n        return self;\n      }\n    }\n\n    reopen(...args) {\n      (0, _metal.applyMixin)(this, args);\n      return this;\n    }\n    /**\n      An overridable method called when objects are instantiated. By default,\n      does nothing unless it is overridden during class definition.\n       Example:\n       ```javascript\n      import EmberObject from '@ember/object';\n       const Person = EmberObject.extend({\n        init() {\n          alert(`Name is ${this.get('name')}`);\n        }\n      });\n       let steve = Person.create({\n        name: 'Steve'\n      });\n       // alerts 'Name is Steve'.\n      ```\n       NOTE: If you do override `init` for a framework class like `Ember.View`,\n      be sure to call `this._super(...arguments)` in your\n      `init` declaration! If you don't, Ember may not have an opportunity to\n      do important setup work, and you'll see strange behavior in your\n      application.\n       @method init\n      @public\n    */\n\n\n    init() {}\n    /**\n      Defines the properties that will be concatenated from the superclass\n      (instead of overridden).\n       By default, when you extend an Ember class a property defined in\n      the subclass overrides a property with the same name that is defined\n      in the superclass. However, there are some cases where it is preferable\n      to build up a property's value by combining the superclass' property\n      value with the subclass' value. An example of this in use within Ember\n      is the `classNames` property of `Ember.View`.\n       Here is some sample code showing the difference between a concatenated\n      property and a normal one:\n       ```javascript\n      import EmberObject from '@ember/object';\n       const Bar = EmberObject.extend({\n        // Configure which properties to concatenate\n        concatenatedProperties: ['concatenatedProperty'],\n         someNonConcatenatedProperty: ['bar'],\n        concatenatedProperty: ['bar']\n      });\n       const FooBar = Bar.extend({\n        someNonConcatenatedProperty: ['foo'],\n        concatenatedProperty: ['foo']\n      });\n       let fooBar = FooBar.create();\n      fooBar.get('someNonConcatenatedProperty'); // ['foo']\n      fooBar.get('concatenatedProperty'); // ['bar', 'foo']\n      ```\n       This behavior extends to object creation as well. Continuing the\n      above example:\n       ```javascript\n      let fooBar = FooBar.create({\n        someNonConcatenatedProperty: ['baz'],\n        concatenatedProperty: ['baz']\n      })\n      fooBar.get('someNonConcatenatedProperty'); // ['baz']\n      fooBar.get('concatenatedProperty'); // ['bar', 'foo', 'baz']\n      ```\n       Adding a single property that is not an array will just add it in the array:\n       ```javascript\n      let fooBar = FooBar.create({\n        concatenatedProperty: 'baz'\n      })\n      view.get('concatenatedProperty'); // ['bar', 'foo', 'baz']\n      ```\n       Using the `concatenatedProperties` property, we can tell Ember to mix the\n      content of the properties.\n       In `Component` the `classNames`, `classNameBindings` and\n      `attributeBindings` properties are concatenated.\n       This feature is available for you to use throughout the Ember object model,\n      although typical app developers are likely to use it infrequently. Since\n      it changes expectations about behavior of properties, you should properly\n      document its usage in each individual concatenated property (to not\n      mislead your users to think they can override the property in a subclass).\n       @property concatenatedProperties\n      @type Array\n      @default null\n      @public\n    */\n\n    /**\n      Defines the properties that will be merged from the superclass\n      (instead of overridden).\n       By default, when you extend an Ember class a property defined in\n      the subclass overrides a property with the same name that is defined\n      in the superclass. However, there are some cases where it is preferable\n      to build up a property's value by merging the superclass property value\n      with the subclass property's value. An example of this in use within Ember\n      is the `queryParams` property of routes.\n       Here is some sample code showing the difference between a merged\n      property and a normal one:\n       ```javascript\n      import EmberObject from '@ember/object';\n       const Bar = EmberObject.extend({\n        // Configure which properties are to be merged\n        mergedProperties: ['mergedProperty'],\n         someNonMergedProperty: {\n          nonMerged: 'superclass value of nonMerged'\n        },\n        mergedProperty: {\n          page: { replace: false },\n          limit: { replace: true }\n        }\n      });\n       const FooBar = Bar.extend({\n        someNonMergedProperty: {\n          completelyNonMerged: 'subclass value of nonMerged'\n        },\n        mergedProperty: {\n          limit: { replace: false }\n        }\n      });\n       let fooBar = FooBar.create();\n       fooBar.get('someNonMergedProperty');\n      // => { completelyNonMerged: 'subclass value of nonMerged' }\n      //\n      // Note the entire object, including the nonMerged property of\n      // the superclass object, has been replaced\n       fooBar.get('mergedProperty');\n      // => {\n      //   page: {replace: false},\n      //   limit: {replace: false}\n      // }\n      //\n      // Note the page remains from the superclass, and the\n      // `limit` property's value of `false` has been merged from\n      // the subclass.\n      ```\n       This behavior is not available during object `create` calls. It is only\n      available at `extend` time.\n       In `Route` the `queryParams` property is merged.\n       This feature is available for you to use throughout the Ember object model,\n      although typical app developers are likely to use it infrequently. Since\n      it changes expectations about behavior of properties, you should properly\n      document its usage in each individual merged property (to not\n      mislead your users to think they can override the property in a subclass).\n       @property mergedProperties\n      @type Array\n      @default null\n      @public\n    */\n\n    /**\n      Destroyed object property flag.\n       if this property is `true` the observers and bindings were already\n      removed by the effect of calling the `destroy()` method.\n       @property isDestroyed\n      @default false\n      @public\n    */\n\n\n    get isDestroyed() {\n      return (0, _meta2.peekMeta)(this).isSourceDestroyed();\n    }\n\n    set isDestroyed(value) {\n      (true && !(false) && (0, _debug.assert)(`You cannot set \\`${this}.isDestroyed\\` directly, please use \\`.destroy()\\`.`, false));\n    }\n    /**\n      Destruction scheduled flag. The `destroy()` method has been called.\n       The object stays intact until the end of the run loop at which point\n      the `isDestroyed` flag is set.\n       @property isDestroying\n      @default false\n      @public\n    */\n\n\n    get isDestroying() {\n      return (0, _meta2.peekMeta)(this).isSourceDestroying();\n    }\n\n    set isDestroying(value) {\n      (true && !(false) && (0, _debug.assert)(`You cannot set \\`${this}.isDestroying\\` directly, please use \\`.destroy()\\`.`, false));\n    }\n    /**\n      Destroys an object by setting the `isDestroyed` flag and removing its\n      metadata, which effectively destroys observers and bindings.\n       If you try to set a property on a destroyed object, an exception will be\n      raised.\n       Note that destruction is scheduled for the end of the run loop and does not\n      happen immediately.  It will set an isDestroying flag immediately.\n       @method destroy\n      @return {EmberObject} receiver\n      @public\n    */\n\n\n    destroy() {\n      if ((0, _metal.destroy)(this)) {\n        (0, _runloop.schedule)('actions', this, this.willDestroy);\n        return;\n      }\n\n      return this;\n    }\n    /**\n      Override to implement teardown.\n       @method willDestroy\n      @public\n    */\n\n\n    willDestroy() {}\n    /**\n      Returns a string representation which attempts to provide more information\n      than Javascript's `toString` typically does, in a generic way for all Ember\n      objects.\n       ```javascript\n      import EmberObject from '@ember/object';\n       const Person = EmberObject.extend();\n      person = Person.create();\n      person.toString(); //=> \"<Person:ember1024>\"\n      ```\n       If the object's class is not defined on an Ember namespace, it will\n      indicate it is a subclass of the registered superclass:\n       ```javascript\n      const Student = Person.extend();\n      let student = Student.create();\n      student.toString(); //=> \"<(subclass of Person):ember1025>\"\n      ```\n       If the method `toStringExtension` is defined, its return value will be\n      included in the output.\n       ```javascript\n      const Teacher = Person.extend({\n        toStringExtension() {\n          return this.get('fullName');\n        }\n      });\n      teacher = Teacher.create();\n      teacher.toString(); //=> \"<Teacher:ember1026:Tom Dale>\"\n      ```\n       @method toString\n      @return {String} string representation\n      @public\n    */\n\n\n    toString() {\n      var hasToStringExtension = typeof this.toStringExtension === 'function';\n      var extension = hasToStringExtension ? `:${this.toStringExtension()}` : '';\n      var ret = `<${(0, _utils.getName)(this) || _container.FACTORY_FOR.get(this) || this.constructor.toString()}:${(0, _utils.guidFor)(this)}${extension}>`;\n      return ret;\n    }\n    /**\n      Creates a new subclass.\n       ```javascript\n      import EmberObject from '@ember/object';\n       const Person = EmberObject.extend({\n        say(thing) {\n          alert(thing);\n         }\n      });\n      ```\n       This defines a new subclass of EmberObject: `Person`. It contains one method: `say()`.\n       You can also create a subclass from any existing class by calling its `extend()` method.\n      For example, you might want to create a subclass of Ember's built-in `Component` class:\n       ```javascript\n      import Component from '@ember/component';\n       const PersonComponent = Component.extend({\n        tagName: 'li',\n        classNameBindings: ['isAdministrator']\n      });\n      ```\n       When defining a subclass, you can override methods but still access the\n      implementation of your parent class by calling the special `_super()` method:\n       ```javascript\n      import EmberObject from '@ember/object';\n       const Person = EmberObject.extend({\n        say(thing) {\n          let name = this.get('name');\n          alert(`${name} says: ${thing}`);\n        }\n      });\n       const Soldier = Person.extend({\n        say(thing) {\n          this._super(`${thing}, sir!`);\n        },\n        march(numberOfHours) {\n          alert(`${this.get('name')} marches for ${numberOfHours} hours.`);\n        }\n      });\n       let yehuda = Soldier.create({\n        name: 'Yehuda Katz'\n      });\n       yehuda.say('Yes');  // alerts \"Yehuda Katz says: Yes, sir!\"\n      ```\n       The `create()` on line #17 creates an *instance* of the `Soldier` class.\n      The `extend()` on line #8 creates a *subclass* of `Person`. Any instance\n      of the `Person` class will *not* have the `march()` method.\n       You can also pass `Mixin` classes to add additional properties to the subclass.\n       ```javascript\n      import EmberObject from '@ember/object';\n      import Mixin from '@ember/object/mixin';\n       const Person = EmberObject.extend({\n        say(thing) {\n          alert(`${this.get('name')} says: ${thing}`);\n        }\n      });\n       const SingingMixin = Mixin.create({\n        sing(thing) {\n          alert(`${this.get('name')} sings: la la la ${thing}`);\n        }\n      });\n       const BroadwayStar = Person.extend(SingingMixin, {\n        dance() {\n          alert(`${this.get('name')} dances: tap tap tap tap `);\n        }\n      });\n      ```\n       The `BroadwayStar` class contains three methods: `say()`, `sing()`, and `dance()`.\n       @method extend\n      @static\n      @for @ember/object\n      @param {Mixin} [mixins]* One or more Mixin classes\n      @param {Object} [arguments]* Object containing values to use within the new class\n      @public\n    */\n\n\n    static extend() {\n      var Class = class extends this {};\n      reopen.apply(Class.PrototypeMixin, arguments);\n      return Class;\n    }\n    /**\n      Creates an instance of a class. Accepts either no arguments, or an object\n      containing values to initialize the newly instantiated object with.\n       ```javascript\n      import EmberObject from '@ember/object';\n       const Person = EmberObject.extend({\n        helloWorld() {\n          alert(`Hi, my name is ${this.get('name')}`);\n        }\n      });\n       let tom = Person.create({\n        name: 'Tom Dale'\n      });\n       tom.helloWorld(); // alerts \"Hi, my name is Tom Dale\".\n      ```\n       `create` will call the `init` function if defined during\n      `AnyObject.extend`\n       If no arguments are passed to `create`, it will not set values to the new\n      instance during initialization:\n       ```javascript\n      let noName = Person.create();\n      noName.helloWorld(); // alerts undefined\n      ```\n       NOTE: For performance reasons, you cannot declare methods or computed\n      properties during `create`. You should instead declare methods and computed\n      properties when using `extend`.\n       @method create\n      @for @ember/object\n      @static\n      @param [arguments]*\n      @public\n    */\n\n\n    static create(props, extra) {\n      var C = this;\n      var instance;\n\n      if (this[FRAMEWORK_CLASSES]) {\n        var initFactory = factoryMap.get(this);\n        var owner;\n\n        if (initFactory !== undefined) {\n          owner = initFactory.owner;\n        } else if (props !== undefined) {\n          owner = (0, _owner.getOwner)(props);\n        }\n\n        if (true\n        /* DEBUG */\n        ) {\n          if (owner === undefined) {\n            // fallback to passing the special PASSED_FROM_CREATE symbol\n            // to avoid an error when folks call things like Controller.extend().create()\n            // we should do a subsequent deprecation pass to ensure this isn't allowed\n            owner = PASSED_FROM_CREATE;\n          } else {\n            debugOwnerMap.set(this, owner);\n          }\n        }\n\n        instance = new C(owner);\n      } else {\n        instance = true\n        /* DEBUG */\n        ? new C(PASSED_FROM_CREATE) : new C();\n      }\n\n      if (extra === undefined) {\n        initialize(instance, props);\n      } else {\n        initialize(instance, flattenProps.apply(this, arguments));\n      }\n\n      return instance;\n    }\n    /**\n      Augments a constructor's prototype with additional\n      properties and functions:\n       ```javascript\n      import EmberObject from '@ember/object';\n       const MyObject = EmberObject.extend({\n        name: 'an object'\n      });\n       o = MyObject.create();\n      o.get('name'); // 'an object'\n       MyObject.reopen({\n        say(msg) {\n          console.log(msg);\n        }\n      });\n       o2 = MyObject.create();\n      o2.say('hello'); // logs \"hello\"\n       o.say('goodbye'); // logs \"goodbye\"\n      ```\n       To add functions and properties to the constructor itself,\n      see `reopenClass`\n       @method reopen\n      @for @ember/object\n      @static\n      @public\n    */\n\n\n    static reopen() {\n      this.willReopen();\n      reopen.apply(this.PrototypeMixin, arguments);\n      return this;\n    }\n\n    static willReopen() {\n      var p = this.prototype;\n\n      if (wasApplied.has(p)) {\n        wasApplied.delete(p); // If the base mixin already exists and was applied, create a new mixin to\n        // make sure that it gets properly applied. Reusing the same mixin after\n        // the first `proto` call will cause it to get skipped.\n\n        if (prototypeMixinMap.has(this)) {\n          prototypeMixinMap.set(this, _metal.Mixin.create(this.PrototypeMixin));\n        }\n      }\n    }\n    /**\n      Augments a constructor's own properties and functions:\n       ```javascript\n      import EmberObject from '@ember/object';\n       const MyObject = EmberObject.extend({\n        name: 'an object'\n      });\n       MyObject.reopenClass({\n        canBuild: false\n      });\n       MyObject.canBuild; // false\n      o = MyObject.create();\n      ```\n       In other words, this creates static properties and functions for the class.\n      These are only available on the class and not on any instance of that class.\n       ```javascript\n      import EmberObject from '@ember/object';\n       const Person = EmberObject.extend({\n        name: '',\n        sayHello() {\n          alert(`Hello. My name is ${this.get('name')}`);\n        }\n      });\n       Person.reopenClass({\n        species: 'Homo sapiens',\n         createPerson(name) {\n          return Person.create({ name });\n        }\n      });\n       let tom = Person.create({\n        name: 'Tom Dale'\n      });\n      let yehuda = Person.createPerson('Yehuda Katz');\n       tom.sayHello(); // \"Hello. My name is Tom Dale\"\n      yehuda.sayHello(); // \"Hello. My name is Yehuda Katz\"\n      alert(Person.species); // \"Homo sapiens\"\n      ```\n       Note that `species` and `createPerson` are *not* valid on the `tom` and `yehuda`\n      variables. They are only valid on `Person`.\n       To add functions and properties to instances of\n      a constructor by extending the constructor's prototype\n      see `reopen`\n       @method reopenClass\n      @for @ember/object\n      @static\n      @public\n    */\n\n\n    static reopenClass() {\n      (0, _metal.applyMixin)(this, arguments);\n      return this;\n    }\n\n    static detect(obj) {\n      if ('function' !== typeof obj) {\n        return false;\n      }\n\n      while (obj) {\n        if (obj === this) {\n          return true;\n        }\n\n        obj = obj.superclass;\n      }\n\n      return false;\n    }\n\n    static detectInstance(obj) {\n      return obj instanceof this;\n    }\n    /**\n      In some cases, you may want to annotate computed properties with additional\n      metadata about how they function or what values they operate on. For\n      example, computed property functions may close over variables that are then\n      no longer available for introspection.\n       You can pass a hash of these values to a computed property like this:\n       ```javascript\n      import { computed } from '@ember/object';\n       person: computed(function() {\n        let personId = this.get('personId');\n        return Person.create({ id: personId });\n      }).meta({ type: Person })\n      ```\n       Once you've done this, you can retrieve the values saved to the computed\n      property from your class like this:\n       ```javascript\n      MyClass.metaForProperty('person');\n      ```\n       This will return the original hash that was passed to `meta()`.\n       @static\n      @method metaForProperty\n      @param key {String} property name\n      @private\n    */\n\n\n    static metaForProperty(key) {\n      var proto = this.proto(); // ensure prototype is initialized\n\n      var possibleDesc = (0, _metal.descriptorForProperty)(proto, key);\n      (true && !(possibleDesc !== undefined) && (0, _debug.assert)(`metaForProperty() could not find a computed property with key '${key}'.`, possibleDesc !== undefined));\n      return possibleDesc._meta || {};\n    }\n    /**\n      Iterate over each computed property for the class, passing its name\n      and any associated metadata (see `metaForProperty`) to the callback.\n       @static\n      @method eachComputedProperty\n      @param {Function} callback\n      @param {Object} binding\n      @private\n    */\n\n\n    static eachComputedProperty(callback, binding = this) {\n      this.proto(); // ensure prototype is initialized\n\n      var empty = {};\n      (0, _meta2.meta)(this.prototype).forEachDescriptors((name, descriptor) => {\n        if (descriptor.enumerable) {\n          var _meta = descriptor._meta || empty;\n\n          callback.call(binding, name, _meta);\n        }\n      });\n    }\n\n    static get PrototypeMixin() {\n      var prototypeMixin = prototypeMixinMap.get(this);\n\n      if (prototypeMixin === undefined) {\n        prototypeMixin = _metal.Mixin.create();\n        prototypeMixin.ownerConstructor = this;\n        prototypeMixinMap.set(this, prototypeMixin);\n      }\n\n      return prototypeMixin;\n    }\n\n    static get superclass() {\n      var c = Object.getPrototypeOf(this);\n      return c !== Function.prototype ? c : undefined;\n    }\n\n    static proto() {\n      var p = this.prototype;\n\n      if (!wasApplied.has(p)) {\n        wasApplied.add(p);\n        var parent = this.superclass;\n\n        if (parent) {\n          parent.proto();\n        } // If the prototype mixin exists, apply it. In the case of native classes,\n        // it will not exist (unless the class has been reopened).\n\n\n        if (prototypeMixinMap.has(this)) {\n          this.PrototypeMixin.apply(p);\n        }\n      }\n\n      return p;\n    }\n\n  }\n\n  CoreObject.toString = _metal.classToString;\n  (0, _utils.setName)(CoreObject, 'Ember.CoreObject');\n  CoreObject.isClass = true;\n  CoreObject.isMethod = false;\n\n  function flattenProps(...props) {\n    var {\n      concatenatedProperties,\n      mergedProperties\n    } = this;\n    var hasConcatenatedProps = concatenatedProperties !== undefined && concatenatedProperties.length > 0;\n    var hasMergedProps = mergedProperties !== undefined && mergedProperties.length > 0;\n    var initProperties = {};\n\n    for (var i = 0; i < props.length; i++) {\n      var properties = props[i];\n      (true && !(!(properties instanceof _metal.Mixin)) && (0, _debug.assert)('EmberObject.create no longer supports mixing in other ' + 'definitions, use .extend & .create separately instead.', !(properties instanceof _metal.Mixin)));\n      var keyNames = Object.keys(properties);\n\n      for (var j = 0, k = keyNames.length; j < k; j++) {\n        var keyName = keyNames[j];\n        var value = properties[keyName];\n\n        if (hasConcatenatedProps && concatenatedProperties.indexOf(keyName) > -1) {\n          var baseValue = initProperties[keyName];\n\n          if (baseValue) {\n            value = (0, _utils.makeArray)(baseValue).concat(value);\n          } else {\n            value = (0, _utils.makeArray)(value);\n          }\n        }\n\n        if (hasMergedProps && mergedProperties.indexOf(keyName) > -1) {\n          var _baseValue = initProperties[keyName];\n          value = (0, _polyfills.assign)({}, _baseValue, value);\n        }\n\n        initProperties[keyName] = value;\n      }\n    }\n\n    return initProperties;\n  }\n\n  if (true\n  /* DEBUG */\n  ) {\n    /**\n      Provides lookup-time type validation for injected properties.\n       @private\n      @method _onLookup\n    */\n    CoreObject._onLookup = function injectedPropertyAssertion(debugContainerKey) {\n      var [type] = debugContainerKey.split(':');\n      var proto = this.proto();\n\n      for (var key in proto) {\n        var desc = (0, _metal.descriptorForProperty)(proto, key);\n\n        if (desc && _metal.DEBUG_INJECTION_FUNCTIONS.has(desc._getter)) {\n          (true && !(type === 'controller' || _metal.DEBUG_INJECTION_FUNCTIONS.get(desc._getter).type !== 'controller') && (0, _debug.assert)(`Defining \\`${key}\\` as an injected controller property on a non-controller (\\`${debugContainerKey}\\`) is not allowed.`, type === 'controller' || _metal.DEBUG_INJECTION_FUNCTIONS.get(desc._getter).type !== 'controller'));\n        }\n      }\n    };\n    /**\n      Returns a hash of property names and container names that injected\n      properties will lookup on the container lazily.\n       @method _lazyInjections\n      @return {Object} Hash of all lazy injected property keys to container names\n      @private\n    */\n\n\n    CoreObject._lazyInjections = function () {\n      var injections = {};\n      var proto = this.proto();\n      var key;\n      var desc;\n\n      for (key in proto) {\n        desc = (0, _metal.descriptorForProperty)(proto, key);\n\n        if (desc && _metal.DEBUG_INJECTION_FUNCTIONS.has(desc._getter)) {\n          var {\n            namespace,\n            source,\n            type,\n            name\n          } = _metal.DEBUG_INJECTION_FUNCTIONS.get(desc._getter);\n\n          injections[key] = {\n            namespace,\n            source,\n            specifier: `${type}:${name || key}`\n          };\n        }\n      }\n\n      return injections;\n    };\n  }\n\n  var _default = CoreObject;\n  _exports.default = _default;\n});","define(\"@ember/-internals/runtime/lib/system/namespace\", [\"exports\", \"@ember/-internals/metal\", \"@ember/-internals/utils\", \"@ember/-internals/runtime/lib/system/object\"], function (_exports, _metal, _utils, _object) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n  @module ember\n  */\n  // Preloaded into namespaces\n\n  /**\n    A Namespace is an object usually used to contain other objects or methods\n    such as an application or framework. Create a namespace anytime you want\n    to define one of these new containers.\n  \n    # Example Usage\n  \n    ```javascript\n    MyFramework = Ember.Namespace.create({\n      VERSION: '1.0.0'\n    });\n    ```\n  \n    @class Namespace\n    @namespace Ember\n    @extends EmberObject\n    @public\n  */\n  class Namespace extends _object.default {\n    init() {\n      (0, _metal.addNamespace)(this);\n    }\n\n    toString() {\n      var name = (0, _metal.get)(this, 'name') || (0, _metal.get)(this, 'modulePrefix');\n\n      if (name) {\n        return name;\n      }\n\n      (0, _metal.findNamespaces)();\n      name = (0, _utils.getName)(this);\n\n      if (name === undefined) {\n        name = (0, _utils.guidFor)(this);\n        (0, _utils.setName)(this, name);\n      }\n\n      return name;\n    }\n\n    nameClasses() {\n      (0, _metal.processNamespace)(this);\n    }\n\n    destroy() {\n      (0, _metal.removeNamespace)(this);\n      super.destroy();\n    }\n\n  }\n\n  _exports.default = Namespace;\n  Namespace.prototype.isNamespace = true;\n  Namespace.NAMESPACES = _metal.NAMESPACES;\n  Namespace.NAMESPACES_BY_ID = _metal.NAMESPACES_BY_ID;\n  Namespace.processAll = _metal.processAllNamespaces;\n  Namespace.byName = _metal.findNamespace;\n});","define(\"@ember/-internals/runtime/lib/system/object\", [\"exports\", \"@ember/-internals/container\", \"@ember/-internals/owner\", \"@ember/-internals/utils\", \"@ember/-internals/metal\", \"@ember/-internals/runtime/lib/system/core_object\", \"@ember/-internals/runtime/lib/mixins/observable\", \"@ember/debug\"], function (_exports, _container, _owner, _utils, _metal, _core_object, _observable, _debug) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.FrameworkObject = _exports.default = void 0;\n\n  /**\n  @module @ember/object\n  */\n  var instanceOwner = new WeakMap();\n  /**\n    `EmberObject` is the main base class for all Ember objects. It is a subclass\n    of `CoreObject` with the `Observable` mixin applied. For details,\n    see the documentation for each of these.\n  \n    @class EmberObject\n    @extends CoreObject\n    @uses Observable\n    @public\n  */\n\n  class EmberObject extends _core_object.default {\n    get _debugContainerKey() {\n      var factory = _container.FACTORY_FOR.get(this);\n\n      return factory !== undefined && factory.fullName;\n    }\n\n    get [_owner.OWNER]() {\n      var owner = instanceOwner.get(this);\n\n      if (owner !== undefined) {\n        return owner;\n      }\n\n      var factory = _container.FACTORY_FOR.get(this);\n\n      return factory !== undefined && factory.owner;\n    } // we need a setter here largely to support\n    // folks calling `owner.ownerInjection()` API\n\n\n    set [_owner.OWNER](value) {\n      instanceOwner.set(this, value);\n    }\n\n  }\n\n  _exports.default = EmberObject;\n  (0, _utils.setName)(EmberObject, 'Ember.Object');\n\n  _observable.default.apply(EmberObject.prototype);\n\n  var FrameworkObject;\n  _exports.FrameworkObject = FrameworkObject;\n  _exports.FrameworkObject = FrameworkObject = class FrameworkObject extends _core_object.default {\n    get _debugContainerKey() {\n      var factory = _container.FACTORY_FOR.get(this);\n\n      return factory !== undefined && factory.fullName;\n    }\n\n    constructor(owner) {\n      super();\n      (0, _owner.setOwner)(this, owner);\n    }\n\n  };\n\n  _observable.default.apply(FrameworkObject.prototype);\n\n  if (true\n  /* DEBUG */\n  ) {\n    var INIT_WAS_CALLED = (0, _utils.symbol)('INIT_WAS_CALLED');\n    var ASSERT_INIT_WAS_CALLED = (0, _utils.symbol)('ASSERT_INIT_WAS_CALLED');\n    _exports.FrameworkObject = FrameworkObject = class DebugFrameworkObject extends EmberObject {\n      init() {\n        super.init(...arguments);\n        this[INIT_WAS_CALLED] = true;\n      }\n\n      [ASSERT_INIT_WAS_CALLED]() {\n        (true && !(this[INIT_WAS_CALLED]) && (0, _debug.assert)(`You must call \\`this._super(...arguments);\\` when overriding \\`init\\` on a framework object. Please update ${this} to call \\`this._super(...arguments);\\` from \\`init\\`.`, this[INIT_WAS_CALLED]));\n      }\n\n    };\n    (0, _metal.addListener)(FrameworkObject.prototype, 'init', null, ASSERT_INIT_WAS_CALLED);\n  }\n});","define(\"@ember/-internals/runtime/lib/system/object_proxy\", [\"exports\", \"@ember/-internals/runtime/lib/system/object\", \"@ember/-internals/runtime/lib/mixins/-proxy\"], function (_exports, _object, _proxy) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n    `ObjectProxy` forwards all properties not defined by the proxy itself\n    to a proxied `content` object.\n  \n    ```javascript\n    import EmberObject from '@ember/object';\n    import ObjectProxy from '@ember/object/proxy';\n  \n    object = EmberObject.create({\n      name: 'Foo'\n    });\n  \n    proxy = ObjectProxy.create({\n      content: object\n    });\n  \n    // Access and change existing properties\n    proxy.get('name')          // 'Foo'\n    proxy.set('name', 'Bar');\n    object.get('name')         // 'Bar'\n  \n    // Create new 'description' property on `object`\n    proxy.set('description', 'Foo is a whizboo baz');\n    object.get('description')  // 'Foo is a whizboo baz'\n    ```\n  \n    While `content` is unset, setting a property to be delegated will throw an\n    Error.\n  \n    ```javascript\n    import ObjectProxy from '@ember/object/proxy';\n  \n    proxy = ObjectProxy.create({\n      content: null,\n      flag: null\n    });\n    proxy.set('flag', true);\n    proxy.get('flag');         // true\n    proxy.get('foo');          // undefined\n    proxy.set('foo', 'data');  // throws Error\n    ```\n  \n    Delegated properties can be bound to and will change when content is updated.\n  \n    Computed properties on the proxy itself can depend on delegated properties.\n  \n    ```javascript\n    import { computed } from '@ember/object';\n    import ObjectProxy from '@ember/object/proxy';\n  \n    ProxyWithComputedProperty = ObjectProxy.extend({\n      fullName: computed('firstName', 'lastName', function() {\n        var firstName = this.get('firstName'),\n            lastName = this.get('lastName');\n        if (firstName && lastName) {\n          return firstName + ' ' + lastName;\n        }\n        return firstName || lastName;\n      })\n    });\n  \n    proxy = ProxyWithComputedProperty.create();\n  \n    proxy.get('fullName');  // undefined\n    proxy.set('content', {\n      firstName: 'Tom', lastName: 'Dale'\n    }); // triggers property change for fullName on proxy\n  \n    proxy.get('fullName');  // 'Tom Dale'\n    ```\n  \n    @class ObjectProxy\n    @extends EmberObject\n    @uses Ember.ProxyMixin\n    @public\n  */\n  class ObjectProxy extends _object.default {}\n\n  _exports.default = ObjectProxy;\n  ObjectProxy.PrototypeMixin.reopen(_proxy.default);\n});","define(\"@ember/-internals/runtime/lib/type-of\", [\"exports\", \"@ember/-internals/runtime/lib/system/core_object\"], function (_exports, _core_object) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.typeOf = typeOf;\n  // ........................................\n  // TYPING & ARRAY MESSAGING\n  //\n  var TYPE_MAP = {\n    '[object Boolean]': 'boolean',\n    '[object Number]': 'number',\n    '[object String]': 'string',\n    '[object Function]': 'function',\n    '[object AsyncFunction]': 'function',\n    '[object Array]': 'array',\n    '[object Date]': 'date',\n    '[object RegExp]': 'regexp',\n    '[object Object]': 'object',\n    '[object FileList]': 'filelist'\n  };\n  var {\n    toString\n  } = Object.prototype;\n  /**\n   @module @ember/utils\n  */\n\n  /**\n    Returns a consistent type for the passed object.\n  \n    Use this instead of the built-in `typeof` to get the type of an item.\n    It will return the same result across all browsers and includes a bit\n    more detail. Here is what will be returned:\n  \n        | Return Value  | Meaning                                              |\n        |---------------|------------------------------------------------------|\n        | 'string'      | String primitive or String object.                   |\n        | 'number'      | Number primitive or Number object.                   |\n        | 'boolean'     | Boolean primitive or Boolean object.                 |\n        | 'null'        | Null value                                           |\n        | 'undefined'   | Undefined value                                      |\n        | 'function'    | A function                                           |\n        | 'array'       | An instance of Array                                 |\n        | 'regexp'      | An instance of RegExp                                |\n        | 'date'        | An instance of Date                                  |\n        | 'filelist'    | An instance of FileList                              |\n        | 'class'       | An Ember class (created using EmberObject.extend())  |\n        | 'instance'    | An Ember object instance                             |\n        | 'error'       | An instance of the Error object                      |\n        | 'object'      | A JavaScript object not inheriting from EmberObject  |\n  \n    Examples:\n  \n    ```javascript\n    import { A } from '@ember/array';\n    import { typeOf } from '@ember/utils';\n    import EmberObject from '@ember/object';\n  \n    typeOf();                       // 'undefined'\n    typeOf(null);                   // 'null'\n    typeOf(undefined);              // 'undefined'\n    typeOf('michael');              // 'string'\n    typeOf(new String('michael'));  // 'string'\n    typeOf(101);                    // 'number'\n    typeOf(new Number(101));        // 'number'\n    typeOf(true);                   // 'boolean'\n    typeOf(new Boolean(true));      // 'boolean'\n    typeOf(A);                      // 'function'\n    typeOf(A());                    // 'array'\n    typeOf([1, 2, 90]);             // 'array'\n    typeOf(/abc/);                  // 'regexp'\n    typeOf(new Date());             // 'date'\n    typeOf(event.target.files);     // 'filelist'\n    typeOf(EmberObject.extend());   // 'class'\n    typeOf(EmberObject.create());   // 'instance'\n    typeOf(new Error('teamocil'));  // 'error'\n  \n    // 'normal' JavaScript object\n    typeOf({ a: 'b' });             // 'object'\n    ```\n  \n    @method typeOf\n    @for @ember/utils\n    @param {Object} item the item to check\n    @return {String} the type\n    @public\n    @static\n  */\n\n  function typeOf(item) {\n    if (item === null) {\n      return 'null';\n    }\n\n    if (item === undefined) {\n      return 'undefined';\n    }\n\n    var ret = TYPE_MAP[toString.call(item)] || 'object';\n\n    if (ret === 'function') {\n      if (_core_object.default.detect(item)) {\n        ret = 'class';\n      }\n    } else if (ret === 'object') {\n      if (item instanceof Error) {\n        ret = 'error';\n      } else if (item instanceof _core_object.default) {\n        ret = 'instance';\n      } else if (item instanceof Date) {\n        ret = 'date';\n      }\n    }\n\n    return ret;\n  }\n});","define(\"@ember/-internals/utils/index\", [\"exports\", \"@ember/polyfills\", \"@ember/debug\"], function (_exports, _polyfills, _debug) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.symbol = symbol;\n  _exports.isInternalSymbol = isInternalSymbol;\n  _exports.dictionary = makeDictionary;\n  _exports.uuid = uuid;\n  _exports.generateGuid = generateGuid;\n  _exports.guidFor = guidFor;\n  _exports.intern = intern;\n  _exports.wrap = wrap;\n  _exports.getObservers = getObservers;\n  _exports.getListeners = getListeners;\n  _exports.setObservers = setObservers;\n  _exports.setListeners = setListeners;\n  _exports.inspect = inspect;\n  _exports.lookupDescriptor = lookupDescriptor;\n  _exports.canInvoke = canInvoke;\n  _exports.tryInvoke = tryInvoke;\n  _exports.makeArray = makeArray;\n  _exports.getName = getName;\n  _exports.setName = setName;\n  _exports.toString = toString;\n  _exports.isObject = isObject;\n  _exports.isProxy = isProxy;\n  _exports.setProxy = setProxy;\n  _exports.isEmberArray = isEmberArray;\n  _exports.setWithMandatorySetter = _exports.teardownMandatorySetter = _exports.setupMandatorySetter = _exports.EMBER_ARRAY = _exports.Cache = _exports.HAS_NATIVE_PROXY = _exports.HAS_NATIVE_SYMBOL = _exports.ROOT = _exports.checkHasSuper = _exports.GUID_KEY = _exports.getOwnPropertyDescriptors = _exports.getDebugName = void 0;\n\n  /**\n    Strongly hint runtimes to intern the provided string.\n  \n    When do I need to use this function?\n  \n    For the most part, never. Pre-mature optimization is bad, and often the\n    runtime does exactly what you need it to, and more often the trade-off isn't\n    worth it.\n  \n    Why?\n  \n    Runtimes store strings in at least 2 different representations:\n    Ropes and Symbols (interned strings). The Rope provides a memory efficient\n    data-structure for strings created from concatenation or some other string\n    manipulation like splitting.\n  \n    Unfortunately checking equality of different ropes can be quite costly as\n    runtimes must resort to clever string comparison algorithms. These\n    algorithms typically cost in proportion to the length of the string.\n    Luckily, this is where the Symbols (interned strings) shine. As Symbols are\n    unique by their string content, equality checks can be done by pointer\n    comparison.\n  \n    How do I know if my string is a rope or symbol?\n  \n    Typically (warning general sweeping statement, but truthy in runtimes at\n    present) static strings created as part of the JS source are interned.\n    Strings often used for comparisons can be interned at runtime if some\n    criteria are met.  One of these criteria can be the size of the entire rope.\n    For example, in chrome 38 a rope longer then 12 characters will not\n    intern, nor will segments of that rope.\n  \n    Some numbers: http://jsperf.com/eval-vs-keys/8\n  \n    Known Trick™\n  \n    @private\n    @return {String} interned version of the provided string\n  */\n  function intern(str) {\n    var obj = {};\n    obj[str] = 1;\n\n    for (var key in obj) {\n      if (key === str) {\n        return key;\n      }\n    }\n\n    return str;\n  }\n  /**\n    Returns whether Type(value) is Object.\n  \n    Useful for checking whether a value is a valid WeakMap key.\n  \n    Refs: https://tc39.github.io/ecma262/#sec-typeof-operator-runtime-semantics-evaluation\n          https://tc39.github.io/ecma262/#sec-weakmap.prototype.set\n  \n    @private\n    @function isObject\n  */\n\n\n  function isObject(value) {\n    return value !== null && (typeof value === 'object' || typeof value === 'function');\n  }\n  /**\n   @module @ember/object\n  */\n\n  /**\n   Previously we used `Ember.$.uuid`, however `$.uuid` has been removed from\n   jQuery master. We'll just bootstrap our own uuid now.\n  \n   @private\n   @return {Number} the uuid\n   */\n\n\n  var _uuid = 0;\n  /**\n   Generates a universally unique identifier. This method\n   is used internally by Ember for assisting with\n   the generation of GUID's and other unique identifiers.\n  \n   @public\n   @return {Number} [description]\n   */\n\n  function uuid() {\n    return ++_uuid;\n  }\n  /**\n   Prefix used for guids through out Ember.\n   @private\n   @property GUID_PREFIX\n   @for Ember\n   @type String\n   @final\n   */\n\n\n  var GUID_PREFIX = 'ember'; // Used for guid generation...\n\n  var OBJECT_GUIDS = new WeakMap();\n  var NON_OBJECT_GUIDS = new Map();\n  /**\n    A unique key used to assign guids and other private metadata to objects.\n    If you inspect an object in your browser debugger you will often see these.\n    They can be safely ignored.\n  \n    On browsers that support it, these properties are added with enumeration\n    disabled so they won't show up when you iterate over your properties.\n  \n    @private\n    @property GUID_KEY\n    @for Ember\n    @type String\n    @final\n  */\n\n  var GUID_KEY = intern(`__ember${Date.now()}`);\n  /**\n    Generates a new guid, optionally saving the guid to the object that you\n    pass in. You will rarely need to use this method. Instead you should\n    call `guidFor(obj)`, which return an existing guid if available.\n  \n    @private\n    @method generateGuid\n    @static\n    @for @ember/object/internals\n    @param {Object} [obj] Object the guid will be used for. If passed in, the guid will\n      be saved on the object and reused whenever you pass the same object\n      again.\n  \n      If no object is passed, just generate a new guid.\n    @param {String} [prefix] Prefix to place in front of the guid. Useful when you want to\n      separate the guid into separate namespaces.\n    @return {String} the guid\n  */\n\n  _exports.GUID_KEY = GUID_KEY;\n\n  function generateGuid(obj, prefix = GUID_PREFIX) {\n    var guid = prefix + uuid();\n\n    if (isObject(obj)) {\n      OBJECT_GUIDS.set(obj, guid);\n    }\n\n    return guid;\n  }\n  /**\n    Returns a unique id for the object. If the object does not yet have a guid,\n    one will be assigned to it. You can call this on any object,\n    `EmberObject`-based or not.\n  \n    You can also use this method on DOM Element objects.\n  \n    @public\n    @static\n    @method guidFor\n    @for @ember/object/internals\n    @param {Object} obj any object, string, number, Element, or primitive\n    @return {String} the unique guid for this instance.\n  */\n\n\n  function guidFor(value) {\n    var guid;\n\n    if (isObject(value)) {\n      guid = OBJECT_GUIDS.get(value);\n\n      if (guid === undefined) {\n        guid = GUID_PREFIX + uuid();\n        OBJECT_GUIDS.set(value, guid);\n      }\n    } else {\n      guid = NON_OBJECT_GUIDS.get(value);\n\n      if (guid === undefined) {\n        var type = typeof value;\n\n        if (type === 'string') {\n          guid = 'st' + uuid();\n        } else if (type === 'number') {\n          guid = 'nu' + uuid();\n        } else if (type === 'symbol') {\n          guid = 'sy' + uuid();\n        } else {\n          guid = '(' + value + ')';\n        }\n\n        NON_OBJECT_GUIDS.set(value, guid);\n      }\n    }\n\n    return guid;\n  }\n\n  var GENERATED_SYMBOLS = [];\n\n  function isInternalSymbol(possibleSymbol) {\n    return GENERATED_SYMBOLS.indexOf(possibleSymbol) !== -1;\n  }\n\n  function symbol(debugName) {\n    // TODO: Investigate using platform symbols, but we do not\n    // want to require non-enumerability for this API, which\n    // would introduce a large cost.\n    var id = GUID_KEY + Math.floor(Math.random() * Date.now());\n    var symbol = intern(`__${debugName}${id}__`);\n    GENERATED_SYMBOLS.push(symbol);\n    return symbol;\n  } // the delete is meant to hint at runtimes that this object should remain in\n  // dictionary mode. This is clearly a runtime specific hack, but currently it\n  // appears worthwhile in some usecases. Please note, these deletes do increase\n  // the cost of creation dramatically over a plain Object.create. And as this\n  // only makes sense for long-lived dictionaries that aren't instantiated often.\n\n\n  function makeDictionary(parent) {\n    var dict = Object.create(parent);\n    dict['_dict'] = null;\n    delete dict['_dict'];\n    return dict;\n  }\n\n  var getDebugName;\n\n  if (true\n  /* DEBUG */\n  ) {\n    var getFunctionName = fn => {\n      var functionName = fn.name;\n\n      if (functionName === undefined) {\n        var match = Function.prototype.toString.call(fn).match(/function (\\w+)\\s*\\(/);\n        functionName = match && match[1] || '';\n      }\n\n      return functionName.replace(/^bound /, '');\n    };\n\n    var getObjectName = obj => {\n      var name;\n      var className;\n\n      if (obj.constructor && obj.constructor !== Object) {\n        className = getFunctionName(obj.constructor);\n      }\n\n      if ('toString' in obj && obj.toString !== Object.prototype.toString && obj.toString !== Function.prototype.toString) {\n        name = obj.toString();\n      } // If the class has a decent looking name, and the `toString` is one of the\n      // default Ember toStrings, replace the constructor portion of the toString\n      // with the class name. We check the length of the class name to prevent doing\n      // this when the value is minified.\n\n\n      if (name && name.match(/<.*:ember\\d+>/) && className && className[0] !== '_' && className.length > 2 && className !== 'Class') {\n        return name.replace(/<.*:/, `<${className}:`);\n      }\n\n      return name || className;\n    };\n\n    var getPrimitiveName = value => {\n      return String(value);\n    };\n\n    getDebugName = value => {\n      if (typeof value === 'function') {\n        return getFunctionName(value) || `(unknown function)`;\n      } else if (typeof value === 'object' && value !== null) {\n        return getObjectName(value) || `(unknown object)`;\n      } else {\n        return getPrimitiveName(value);\n      }\n    };\n  }\n\n  var getDebugName$1 = getDebugName;\n  _exports.getDebugName = getDebugName$1;\n  var getOwnPropertyDescriptors;\n\n  if (Object.getOwnPropertyDescriptors !== undefined) {\n    getOwnPropertyDescriptors = Object.getOwnPropertyDescriptors;\n  } else {\n    getOwnPropertyDescriptors = function (obj) {\n      var descriptors = {};\n      Object.keys(obj).forEach(key => {\n        descriptors[key] = Object.getOwnPropertyDescriptor(obj, key);\n      });\n      return descriptors;\n    };\n  }\n\n  var getOwnPropertyDescriptors$1 = getOwnPropertyDescriptors;\n  _exports.getOwnPropertyDescriptors = getOwnPropertyDescriptors$1;\n  var HAS_SUPER_PATTERN = /\\.(_super|call\\(this|apply\\(this)/;\n  var fnToString = Function.prototype.toString;\n\n  var checkHasSuper = (() => {\n    var sourceAvailable = fnToString.call(function () {\n      return this;\n    }).indexOf('return this') > -1;\n\n    if (sourceAvailable) {\n      return function checkHasSuper(func) {\n        return HAS_SUPER_PATTERN.test(fnToString.call(func));\n      };\n    }\n\n    return function checkHasSuper() {\n      return true;\n    };\n  })();\n\n  _exports.checkHasSuper = checkHasSuper;\n  var HAS_SUPER_MAP = new WeakMap();\n  var ROOT = Object.freeze(function () {});\n  _exports.ROOT = ROOT;\n  HAS_SUPER_MAP.set(ROOT, false);\n\n  function hasSuper(func) {\n    var hasSuper = HAS_SUPER_MAP.get(func);\n\n    if (hasSuper === undefined) {\n      hasSuper = checkHasSuper(func);\n      HAS_SUPER_MAP.set(func, hasSuper);\n    }\n\n    return hasSuper;\n  }\n\n  var OBSERVERS_MAP = new WeakMap();\n\n  function setObservers(func, observers) {\n    OBSERVERS_MAP.set(func, observers);\n  }\n\n  function getObservers(func) {\n    return OBSERVERS_MAP.get(func);\n  }\n\n  var LISTENERS_MAP = new WeakMap();\n\n  function setListeners(func, listeners) {\n    if (listeners) {\n      LISTENERS_MAP.set(func, listeners);\n    }\n  }\n\n  function getListeners(func) {\n    return LISTENERS_MAP.get(func);\n  }\n\n  var IS_WRAPPED_FUNCTION_SET = new _polyfills._WeakSet();\n  /**\n    Wraps the passed function so that `this._super` will point to the superFunc\n    when the function is invoked. This is the primitive we use to implement\n    calls to super.\n  \n    @private\n    @method wrap\n    @for Ember\n    @param {Function} func The function to call\n    @param {Function} superFunc The super function.\n    @return {Function} wrapped function.\n  */\n\n  function wrap(func, superFunc) {\n    if (!hasSuper(func)) {\n      return func;\n    } // ensure an unwrapped super that calls _super is wrapped with a terminal _super\n\n\n    if (!IS_WRAPPED_FUNCTION_SET.has(superFunc) && hasSuper(superFunc)) {\n      return _wrap(func, _wrap(superFunc, ROOT));\n    }\n\n    return _wrap(func, superFunc);\n  }\n\n  function _wrap(func, superFunc) {\n    function superWrapper() {\n      var orig = this._super;\n      this._super = superFunc;\n      var ret = func.apply(this, arguments);\n      this._super = orig;\n      return ret;\n    }\n\n    IS_WRAPPED_FUNCTION_SET.add(superWrapper);\n    setObservers(superWrapper, getObservers(func));\n    setListeners(superWrapper, getListeners(func));\n    return superWrapper;\n  }\n\n  var {\n    toString: objectToString\n  } = Object.prototype;\n  var {\n    toString: functionToString\n  } = Function.prototype;\n  var {\n    isArray\n  } = Array;\n  var {\n    keys: objectKeys\n  } = Object;\n  var {\n    stringify\n  } = JSON;\n  var LIST_LIMIT = 100;\n  var DEPTH_LIMIT = 4;\n  var SAFE_KEY = /^[\\w$]+$/;\n  /**\n   @module @ember/debug\n  */\n\n  /**\n    Convenience method to inspect an object. This method will attempt to\n    convert the object into a useful string description.\n  \n    It is a pretty simple implementation. If you want something more robust,\n    use something like JSDump: https://github.com/NV/jsDump\n  \n    @method inspect\n    @static\n    @param {Object} obj The object you want to inspect.\n    @return {String} A description of the object\n    @since 1.4.0\n    @private\n  */\n\n  function inspect(obj) {\n    // detect Node util.inspect call inspect(depth: number, opts: object)\n    if (typeof obj === 'number' && arguments.length === 2) {\n      return this;\n    }\n\n    return inspectValue(obj, 0);\n  }\n\n  function inspectValue(value, depth, seen) {\n    var valueIsArray = false;\n\n    switch (typeof value) {\n      case 'undefined':\n        return 'undefined';\n\n      case 'object':\n        if (value === null) return 'null';\n\n        if (isArray(value)) {\n          valueIsArray = true;\n          break;\n        } // is toString Object.prototype.toString or undefined then traverse\n\n\n        if (value.toString === objectToString || value.toString === undefined) {\n          break;\n        } // custom toString\n\n\n        return value.toString();\n\n      case 'function':\n        return value.toString === functionToString ? value.name ? `[Function:${value.name}]` : `[Function]` : value.toString();\n\n      case 'string':\n        return stringify(value);\n\n      case 'symbol':\n      case 'boolean':\n      case 'number':\n      default:\n        return value.toString();\n    }\n\n    if (seen === undefined) {\n      seen = new _polyfills._WeakSet();\n    } else {\n      if (seen.has(value)) return `[Circular]`;\n    }\n\n    seen.add(value);\n    return valueIsArray ? inspectArray(value, depth + 1, seen) : inspectObject(value, depth + 1, seen);\n  }\n\n  function inspectKey(key) {\n    return SAFE_KEY.test(key) ? key : stringify(key);\n  }\n\n  function inspectObject(obj, depth, seen) {\n    if (depth > DEPTH_LIMIT) {\n      return '[Object]';\n    }\n\n    var s = '{';\n    var keys = objectKeys(obj);\n\n    for (var i = 0; i < keys.length; i++) {\n      s += i === 0 ? ' ' : ', ';\n\n      if (i >= LIST_LIMIT) {\n        s += `... ${keys.length - LIST_LIMIT} more keys`;\n        break;\n      }\n\n      var key = keys[i];\n      s += inspectKey(key) + ': ' + inspectValue(obj[key], depth, seen);\n    }\n\n    s += ' }';\n    return s;\n  }\n\n  function inspectArray(arr, depth, seen) {\n    if (depth > DEPTH_LIMIT) {\n      return '[Array]';\n    }\n\n    var s = '[';\n\n    for (var i = 0; i < arr.length; i++) {\n      s += i === 0 ? ' ' : ', ';\n\n      if (i >= LIST_LIMIT) {\n        s += `... ${arr.length - LIST_LIMIT} more items`;\n        break;\n      }\n\n      s += inspectValue(arr[i], depth, seen);\n    }\n\n    s += ' ]';\n    return s;\n  }\n\n  function lookupDescriptor(obj, keyName) {\n    var current = obj;\n\n    do {\n      var descriptor = Object.getOwnPropertyDescriptor(current, keyName);\n\n      if (descriptor !== undefined) {\n        return descriptor;\n      }\n\n      current = Object.getPrototypeOf(current);\n    } while (current !== null);\n\n    return null;\n  }\n  /**\n    Checks to see if the `methodName` exists on the `obj`.\n  \n    ```javascript\n    let foo = { bar: function() { return 'bar'; }, baz: null };\n  \n    Ember.canInvoke(foo, 'bar'); // true\n    Ember.canInvoke(foo, 'baz'); // false\n    Ember.canInvoke(foo, 'bat'); // false\n    ```\n  \n    @method canInvoke\n    @for Ember\n    @param {Object} obj The object to check for the method\n    @param {String} methodName The method name to check for\n    @return {Boolean}\n    @private\n  */\n\n\n  function canInvoke(obj, methodName) {\n    return obj !== null && obj !== undefined && typeof obj[methodName] === 'function';\n  }\n  /**\n    @module @ember/utils\n  */\n\n  /**\n    Checks to see if the `methodName` exists on the `obj`,\n    and if it does, invokes it with the arguments passed.\n  \n    ```javascript\n    import { tryInvoke } from '@ember/utils';\n  \n    let d = new Date('03/15/2013');\n  \n    tryInvoke(d, 'getTime');              // 1363320000000\n    tryInvoke(d, 'setFullYear', [2014]);  // 1394856000000\n    tryInvoke(d, 'noSuchMethod', [2014]); // undefined\n    ```\n  \n    @method tryInvoke\n    @for @ember/utils\n    @static\n    @param {Object} obj The object to check for the method\n    @param {String} methodName The method name to check for\n    @param {Array} [args] The arguments to pass to the method\n    @return {*} the return value of the invoked method or undefined if it cannot be invoked\n    @public\n  */\n\n\n  function tryInvoke(obj, methodName, args) {\n    if (canInvoke(obj, methodName)) {\n      var method = obj[methodName];\n      return method.apply(obj, args);\n    }\n  }\n\n  var {\n    isArray: isArray$1\n  } = Array;\n\n  function makeArray(obj) {\n    if (obj === null || obj === undefined) {\n      return [];\n    }\n\n    return isArray$1(obj) ? obj : [obj];\n  }\n\n  var NAMES = new WeakMap();\n\n  function setName(obj, name) {\n    if (isObject(obj)) NAMES.set(obj, name);\n  }\n\n  function getName(obj) {\n    return NAMES.get(obj);\n  }\n\n  var objectToString$1 = Object.prototype.toString;\n\n  function isNone(obj) {\n    return obj === null || obj === undefined;\n  }\n  /*\n   A `toString` util function that supports objects without a `toString`\n   method, e.g. an object created with `Object.create(null)`.\n  */\n\n\n  function toString(obj) {\n    if (typeof obj === 'string') {\n      return obj;\n    }\n\n    if (null === obj) return 'null';\n    if (undefined === obj) return 'undefined';\n\n    if (Array.isArray(obj)) {\n      // Reimplement Array.prototype.join according to spec (22.1.3.13)\n      // Changing ToString(element) with this safe version of ToString.\n      var r = '';\n\n      for (var k = 0; k < obj.length; k++) {\n        if (k > 0) {\n          r += ',';\n        }\n\n        if (!isNone(obj[k])) {\n          r += toString(obj[k]);\n        }\n      }\n\n      return r;\n    }\n\n    if (typeof obj.toString === 'function') {\n      return obj.toString();\n    }\n\n    return objectToString$1.call(obj);\n  }\n\n  var HAS_NATIVE_SYMBOL = function () {\n    if (typeof Symbol !== 'function') {\n      return false;\n    }\n\n    return typeof Symbol() === 'symbol';\n  }();\n\n  _exports.HAS_NATIVE_SYMBOL = HAS_NATIVE_SYMBOL;\n  var HAS_NATIVE_PROXY = typeof Proxy === 'function';\n  _exports.HAS_NATIVE_PROXY = HAS_NATIVE_PROXY;\n  var PROXIES = new _polyfills._WeakSet();\n\n  function isProxy(value) {\n    if (isObject(value)) {\n      return PROXIES.has(value);\n    }\n\n    return false;\n  }\n\n  function setProxy(object) {\n    if (isObject(object)) {\n      PROXIES.add(object);\n    }\n  }\n\n  class Cache {\n    constructor(limit, func, store) {\n      this.limit = limit;\n      this.func = func;\n      this.store = store;\n      this.size = 0;\n      this.misses = 0;\n      this.hits = 0;\n      this.store = store || new Map();\n    }\n\n    get(key) {\n      if (this.store.has(key)) {\n        this.hits++;\n        return this.store.get(key);\n      } else {\n        this.misses++;\n        return this.set(key, this.func(key));\n      }\n    }\n\n    set(key, value) {\n      if (this.limit > this.size) {\n        this.size++;\n        this.store.set(key, value);\n      }\n\n      return value;\n    }\n\n    purge() {\n      this.store.clear();\n      this.size = 0;\n      this.hits = 0;\n      this.misses = 0;\n    }\n\n  }\n\n  _exports.Cache = Cache;\n  var EMBER_ARRAY = symbol('EMBER_ARRAY');\n  _exports.EMBER_ARRAY = EMBER_ARRAY;\n\n  function isEmberArray(obj) {\n    return obj && obj[EMBER_ARRAY];\n  }\n\n  var setupMandatorySetter;\n  _exports.setupMandatorySetter = setupMandatorySetter;\n  var teardownMandatorySetter;\n  _exports.teardownMandatorySetter = teardownMandatorySetter;\n  var setWithMandatorySetter;\n  _exports.setWithMandatorySetter = setWithMandatorySetter;\n\n  function isElementKey(key) {\n    return typeof key === 'number' ? isPositiveInt(key) : isStringInt(key);\n  }\n\n  function isStringInt(str) {\n    var num = parseInt(str, 10);\n    return isPositiveInt(num) && str === String(num);\n  }\n\n  function isPositiveInt(num) {\n    return num >= 0 && num % 1 === 0;\n  }\n\n  if (true\n  /* DEBUG */\n  ) {\n    var SEEN_TAGS = new _polyfills._WeakSet();\n    var MANDATORY_SETTERS = new WeakMap();\n\n    var _propertyIsEnumerable = function (obj, key) {\n      return Object.prototype.propertyIsEnumerable.call(obj, key);\n    };\n\n    _exports.setupMandatorySetter = setupMandatorySetter = function (tag, obj, keyName) {\n      if (SEEN_TAGS.has(tag)) {\n        return;\n      }\n\n      SEEN_TAGS.add(tag);\n\n      if (Array.isArray(obj) && isElementKey(keyName)) {\n        return;\n      }\n\n      var desc = lookupDescriptor(obj, keyName) || {};\n\n      if (desc.get || desc.set) {\n        // if it has a getter or setter, we can't install the mandatory setter.\n        // native setters are allowed, we have to assume that they will resolve\n        // to tracked properties.\n        return;\n      }\n\n      if (desc && (!desc.configurable || !desc.writable)) {\n        // if it isn't writable anyways, so we shouldn't provide the setter.\n        // if it isn't configurable, we can't overwrite it anyways.\n        return;\n      }\n\n      var setters = MANDATORY_SETTERS.get(obj);\n\n      if (setters === undefined) {\n        setters = {};\n        MANDATORY_SETTERS.set(obj, setters);\n      }\n\n      desc.hadOwnProperty = Object.hasOwnProperty.call(obj, keyName);\n      setters[keyName] = desc;\n      Object.defineProperty(obj, keyName, {\n        configurable: true,\n        enumerable: _propertyIsEnumerable(obj, keyName),\n\n        get() {\n          if (desc.get) {\n            return desc.get.call(this);\n          } else {\n            return desc.value;\n          }\n        },\n\n        set(value) {\n          (true && !(false) && (0, _debug.assert)(`You attempted to update ${this}.${String(keyName)} to \"${String(value)}\", but it is being tracked by a tracking context, such as a template, computed property, or observer. In order to make sure the context updates properly, you must invalidate the property when updating it. You can mark the property as \\`@tracked\\`, or use \\`@ember/object#set\\` to do this.`));\n        }\n\n      });\n    };\n\n    _exports.teardownMandatorySetter = teardownMandatorySetter = function (obj, keyName) {\n      var setters = MANDATORY_SETTERS.get(obj);\n\n      if (setters !== undefined && setters[keyName] !== undefined) {\n        Object.defineProperty(obj, keyName, setters[keyName]);\n        setters[keyName] = undefined;\n      }\n    };\n\n    _exports.setWithMandatorySetter = setWithMandatorySetter = function (obj, keyName, value) {\n      var setters = MANDATORY_SETTERS.get(obj);\n\n      if (setters !== undefined && setters[keyName] !== undefined) {\n        var setter = setters[keyName];\n\n        if (setter.set) {\n          setter.set.call(obj, value);\n        } else {\n          setter.value = value; // If the object didn't have own property before, it would have changed\n          // the enumerability after setting the value the first time.\n\n          if (!setter.hadOwnProperty) {\n            var desc = lookupDescriptor(obj, keyName);\n            desc.enumerable = true;\n            Object.defineProperty(obj, keyName, desc);\n          }\n        }\n      } else {\n        obj[keyName] = value;\n      }\n    };\n  }\n  /*\n   This package will be eagerly parsed and should have no dependencies on external\n   packages.\n  \n   It is intended to be used to share utility methods that will be needed\n   by every Ember application (and is **not** a dumping ground of useful utilities).\n  \n   Utility methods that are needed in < 80% of cases should be placed\n   elsewhere (so they can be lazily evaluated / parsed).\n  */\n\n});","define(\"@ember/-internals/views/index\", [\"exports\", \"@ember/-internals/views/lib/system/jquery\", \"@ember/-internals/views/lib/system/utils\", \"@ember/-internals/views/lib/system/event_dispatcher\", \"@ember/-internals/views/lib/component_lookup\", \"@ember/-internals/views/lib/mixins/text_support\", \"@ember/-internals/views/lib/views/core_view\", \"@ember/-internals/views/lib/mixins/class_names_support\", \"@ember/-internals/views/lib/mixins/child_views_support\", \"@ember/-internals/views/lib/mixins/view_state_support\", \"@ember/-internals/views/lib/mixins/view_support\", \"@ember/-internals/views/lib/mixins/action_support\", \"@ember/-internals/views/lib/compat/attrs\", \"@ember/-internals/views/lib/system/action_manager\"], function (_exports, _jquery, _utils, _event_dispatcher, _component_lookup, _text_support, _core_view, _class_names_support, _child_views_support, _view_state_support, _view_support, _action_support, _attrs, _action_manager) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"jQuery\", {\n    enumerable: true,\n    get: function () {\n      return _jquery.jQuery;\n    }\n  });\n  Object.defineProperty(_exports, \"jQueryDisabled\", {\n    enumerable: true,\n    get: function () {\n      return _jquery.jQueryDisabled;\n    }\n  });\n  Object.defineProperty(_exports, \"addChildView\", {\n    enumerable: true,\n    get: function () {\n      return _utils.addChildView;\n    }\n  });\n  Object.defineProperty(_exports, \"isSimpleClick\", {\n    enumerable: true,\n    get: function () {\n      return _utils.isSimpleClick;\n    }\n  });\n  Object.defineProperty(_exports, \"getViewBounds\", {\n    enumerable: true,\n    get: function () {\n      return _utils.getViewBounds;\n    }\n  });\n  Object.defineProperty(_exports, \"getViewClientRects\", {\n    enumerable: true,\n    get: function () {\n      return _utils.getViewClientRects;\n    }\n  });\n  Object.defineProperty(_exports, \"getViewBoundingClientRect\", {\n    enumerable: true,\n    get: function () {\n      return _utils.getViewBoundingClientRect;\n    }\n  });\n  Object.defineProperty(_exports, \"getRootViews\", {\n    enumerable: true,\n    get: function () {\n      return _utils.getRootViews;\n    }\n  });\n  Object.defineProperty(_exports, \"getChildViews\", {\n    enumerable: true,\n    get: function () {\n      return _utils.getChildViews;\n    }\n  });\n  Object.defineProperty(_exports, \"getViewId\", {\n    enumerable: true,\n    get: function () {\n      return _utils.getViewId;\n    }\n  });\n  Object.defineProperty(_exports, \"getElementView\", {\n    enumerable: true,\n    get: function () {\n      return _utils.getElementView;\n    }\n  });\n  Object.defineProperty(_exports, \"getViewElement\", {\n    enumerable: true,\n    get: function () {\n      return _utils.getViewElement;\n    }\n  });\n  Object.defineProperty(_exports, \"setElementView\", {\n    enumerable: true,\n    get: function () {\n      return _utils.setElementView;\n    }\n  });\n  Object.defineProperty(_exports, \"setViewElement\", {\n    enumerable: true,\n    get: function () {\n      return _utils.setViewElement;\n    }\n  });\n  Object.defineProperty(_exports, \"clearElementView\", {\n    enumerable: true,\n    get: function () {\n      return _utils.clearElementView;\n    }\n  });\n  Object.defineProperty(_exports, \"clearViewElement\", {\n    enumerable: true,\n    get: function () {\n      return _utils.clearViewElement;\n    }\n  });\n  Object.defineProperty(_exports, \"constructStyleDeprecationMessage\", {\n    enumerable: true,\n    get: function () {\n      return _utils.constructStyleDeprecationMessage;\n    }\n  });\n  Object.defineProperty(_exports, \"EventDispatcher\", {\n    enumerable: true,\n    get: function () {\n      return _event_dispatcher.default;\n    }\n  });\n  Object.defineProperty(_exports, \"ComponentLookup\", {\n    enumerable: true,\n    get: function () {\n      return _component_lookup.default;\n    }\n  });\n  Object.defineProperty(_exports, \"TextSupport\", {\n    enumerable: true,\n    get: function () {\n      return _text_support.default;\n    }\n  });\n  Object.defineProperty(_exports, \"CoreView\", {\n    enumerable: true,\n    get: function () {\n      return _core_view.default;\n    }\n  });\n  Object.defineProperty(_exports, \"ClassNamesSupport\", {\n    enumerable: true,\n    get: function () {\n      return _class_names_support.default;\n    }\n  });\n  Object.defineProperty(_exports, \"ChildViewsSupport\", {\n    enumerable: true,\n    get: function () {\n      return _child_views_support.default;\n    }\n  });\n  Object.defineProperty(_exports, \"ViewStateSupport\", {\n    enumerable: true,\n    get: function () {\n      return _view_state_support.default;\n    }\n  });\n  Object.defineProperty(_exports, \"ViewMixin\", {\n    enumerable: true,\n    get: function () {\n      return _view_support.default;\n    }\n  });\n  Object.defineProperty(_exports, \"ActionSupport\", {\n    enumerable: true,\n    get: function () {\n      return _action_support.default;\n    }\n  });\n  Object.defineProperty(_exports, \"MUTABLE_CELL\", {\n    enumerable: true,\n    get: function () {\n      return _attrs.MUTABLE_CELL;\n    }\n  });\n  Object.defineProperty(_exports, \"ActionManager\", {\n    enumerable: true,\n    get: function () {\n      return _action_manager.default;\n    }\n  });\n});","define(\"@ember/-internals/views/lib/compat/attrs\", [\"exports\", \"@ember/-internals/utils\"], function (_exports, _utils) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.MUTABLE_CELL = void 0;\n  var MUTABLE_CELL = (0, _utils.symbol)('MUTABLE_CELL');\n  _exports.MUTABLE_CELL = MUTABLE_CELL;\n});","define(\"@ember/-internals/views/lib/compat/fallback-view-registry\", [\"exports\", \"@ember/-internals/utils\"], function (_exports, _utils) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  var _default = (0, _utils.dictionary)(null);\n\n  _exports.default = _default;\n});","define(\"@ember/-internals/views/lib/component_lookup\", [\"exports\", \"@ember/-internals/runtime\"], function (_exports, _runtime) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  var _default = _runtime.Object.extend({\n    componentFor(name, owner, options) {\n      var fullName = `component:${name}`;\n      return owner.factoryFor(fullName, options);\n    },\n\n    layoutFor(name, owner, options) {\n      var templateFullName = `template:components/${name}`;\n      return owner.lookup(templateFullName, options);\n    }\n\n  });\n\n  _exports.default = _default;\n});","define(\"@ember/-internals/views/lib/mixins/action_support\", [\"exports\", \"@ember/-internals/utils\", \"@ember/-internals/metal\", \"@ember/debug\", \"@ember/-internals/views/lib/compat/attrs\", \"@ember/deprecated-features\"], function (_exports, _utils, _metal, _debug, _attrs, _deprecatedFeatures) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n   @module ember\n  */\n  var mixinObj = {\n    send(actionName, ...args) {\n      (true && !(!this.isDestroying && !this.isDestroyed) && (0, _debug.assert)(`Attempted to call .send() with the action '${actionName}' on the destroyed object '${this}'.`, !this.isDestroying && !this.isDestroyed));\n      var action = this.actions && this.actions[actionName];\n\n      if (action) {\n        var shouldBubble = action.apply(this, args) === true;\n\n        if (!shouldBubble) {\n          return;\n        }\n      }\n\n      var target = (0, _metal.get)(this, 'target');\n\n      if (target) {\n        (true && !(typeof target.send === 'function') && (0, _debug.assert)(`The \\`target\\` for ${this} (${target}) does not have a \\`send\\` method`, typeof target.send === 'function'));\n        target.send(...arguments);\n      } else {\n        (true && !(action) && (0, _debug.assert)(`${(0, _utils.inspect)(this)} had no action handler for: ${actionName}`, action));\n      }\n    }\n\n  };\n\n  if (_deprecatedFeatures.SEND_ACTION) {\n    /**\n      Calls an action passed to a component.\n       For example a component for playing or pausing music may translate click events\n      into action notifications of \"play\" or \"stop\" depending on some internal state\n      of the component:\n       ```app/components/play-button.js\n      import Component from '@ember/component';\n       export default Component.extend({\n        click() {\n          if (this.get('isPlaying')) {\n            this.sendAction('play');\n          } else {\n            this.sendAction('stop');\n          }\n        }\n      });\n      ```\n       The actions \"play\" and \"stop\" must be passed to this `play-button` component:\n       ```handlebars\n      {{! app/templates/application.hbs }}\n      {{play-button play=(action \"musicStarted\") stop=(action \"musicStopped\")}}\n      ```\n       When the component receives a browser `click` event it translate this\n      interaction into application-specific semantics (\"play\" or \"stop\") and\n      calls the specified action.\n       ```app/controller/application.js\n      import Controller from '@ember/controller';\n       export default Controller.extend({\n        actions: {\n          musicStarted() {\n            // called when the play button is clicked\n            // and the music started playing\n          },\n          musicStopped() {\n            // called when the play button is clicked\n            // and the music stopped playing\n          }\n        }\n      });\n      ```\n       If no action is passed to `sendAction` a default name of \"action\"\n      is assumed.\n       ```app/components/next-button.js\n      import Component from '@ember/component';\n       export default Component.extend({\n        click() {\n          this.sendAction();\n        }\n      });\n      ```\n       ```handlebars\n      {{! app/templates/application.hbs }}\n      {{next-button action=(action \"playNextSongInAlbum\")}}\n      ```\n       ```app/controllers/application.js\n      import Controller from '@ember/controller';\n       export default Controller.extend({\n        actions: {\n          playNextSongInAlbum() {\n            ...\n          }\n        }\n      });\n      ```\n       @method sendAction\n      @param [action] {String} the action to call\n      @param [params] {*} arguments for the action\n      @public\n      @deprecated\n    */\n    var sendAction = function sendAction(action, ...contexts) {\n      (true && !(!this.isDestroying && !this.isDestroyed) && (0, _debug.assert)(`Attempted to call .sendAction() with the action '${action}' on the destroyed object '${this}'.`, !this.isDestroying && !this.isDestroyed));\n      (true && !(false) && (0, _debug.deprecate)(`You called ${(0, _utils.inspect)(this)}.sendAction(${typeof action === 'string' ? `\"${action}\"` : ''}) but Component#sendAction is deprecated. Please use closure actions instead.`, false, {\n        id: 'ember-component.send-action',\n        until: '4.0.0',\n        url: 'https://emberjs.com/deprecations/v3.x#toc_ember-component-send-action'\n      }));\n      var actionName; // Send the default action\n\n      if (action === undefined) {\n        action = 'action';\n      }\n\n      actionName = (0, _metal.get)(this, `attrs.${action}`) || (0, _metal.get)(this, action);\n      actionName = validateAction(this, actionName); // If no action name for that action could be found, just abort.\n\n      if (actionName === undefined) {\n        return;\n      }\n\n      if (typeof actionName === 'function') {\n        actionName(...contexts);\n      } else {\n        this.triggerAction({\n          action: actionName,\n          actionContext: contexts\n        });\n      }\n    };\n\n    var validateAction = function validateAction(component, actionName) {\n      if (actionName && actionName[_attrs.MUTABLE_CELL]) {\n        actionName = actionName.value;\n      }\n\n      (true && !(actionName === null || actionName === undefined || typeof actionName === 'string' || typeof actionName === 'function') && (0, _debug.assert)(`The default action was triggered on the component ${component.toString()}, but the action name (${actionName}) was not a string.`, actionName === null || actionName === undefined || typeof actionName === 'string' || typeof actionName === 'function'));\n      return actionName;\n    };\n\n    mixinObj.sendAction = sendAction;\n  }\n  /**\n   @class ActionSupport\n   @namespace Ember\n   @private\n  */\n\n\n  var _default = _metal.Mixin.create(mixinObj);\n\n  _exports.default = _default;\n});","define(\"@ember/-internals/views/lib/mixins/child_views_support\", [\"exports\", \"@ember/-internals/metal\", \"@ember/-internals/views/lib/system/utils\"], function (_exports, _metal, _utils) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n  @module ember\n  */\n  var _default = _metal.Mixin.create({\n    /**\n      Array of child views. You should never edit this array directly.\n       @property childViews\n      @type Array\n      @default []\n      @private\n    */\n    childViews: (0, _metal.nativeDescDecorator)({\n      configurable: false,\n      enumerable: false,\n\n      get() {\n        return (0, _utils.getChildViews)(this);\n      }\n\n    }),\n\n    appendChild(view) {\n      (0, _utils.addChildView)(this, view);\n    }\n\n  });\n\n  _exports.default = _default;\n});","define(\"@ember/-internals/views/lib/mixins/class_names_support\", [\"exports\", \"@ember/-internals/metal\", \"@ember/debug\"], function (_exports, _metal, _debug) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n  @module ember\n  */\n  var EMPTY_ARRAY = Object.freeze([]);\n  /**\n    @class ClassNamesSupport\n    @namespace Ember\n    @private\n  */\n\n  var _default = _metal.Mixin.create({\n    concatenatedProperties: ['classNames', 'classNameBindings'],\n\n    init() {\n      this._super(...arguments);\n\n      (true && !((0, _metal.descriptorForProperty)(this, 'classNameBindings') === undefined && Array.isArray(this.classNameBindings)) && (0, _debug.assert)(`Only arrays are allowed for 'classNameBindings'`, (0, _metal.descriptorForProperty)(this, 'classNameBindings') === undefined && Array.isArray(this.classNameBindings)));\n      (true && !((0, _metal.descriptorForProperty)(this, 'classNames') === undefined && Array.isArray(this.classNames)) && (0, _debug.assert)(`Only arrays of static class strings are allowed for 'classNames'. For dynamic classes, use 'classNameBindings'.`, (0, _metal.descriptorForProperty)(this, 'classNames') === undefined && Array.isArray(this.classNames)));\n    },\n\n    /**\n      Standard CSS class names to apply to the view's outer element. This\n      property automatically inherits any class names defined by the view's\n      superclasses as well.\n       @property classNames\n      @type Array\n      @default ['ember-view']\n      @public\n    */\n    classNames: EMPTY_ARRAY,\n\n    /**\n      A list of properties of the view to apply as class names. If the property\n      is a string value, the value of that string will be applied as a class\n      name.\n       ```javascript\n      // Applies the 'high' class to the view element\n      import Component from '@ember/component';\n      Component.extend({\n        classNameBindings: ['priority'],\n        priority: 'high'\n      });\n      ```\n       If the value of the property is a Boolean, the name of that property is\n      added as a dasherized class name.\n       ```javascript\n      // Applies the 'is-urgent' class to the view element\n      import Component from '@ember/component';\n      Component.extend({\n        classNameBindings: ['isUrgent'],\n        isUrgent: true\n      });\n      ```\n       If you would prefer to use a custom value instead of the dasherized\n      property name, you can pass a binding like this:\n       ```javascript\n      // Applies the 'urgent' class to the view element\n      import Component from '@ember/component';\n      Component.extend({\n        classNameBindings: ['isUrgent:urgent'],\n        isUrgent: true\n      });\n      ```\n       If you would like to specify a class that should only be added when the\n      property is false, you can declare a binding like this:\n       ```javascript\n      // Applies the 'disabled' class to the view element\n      import Component from '@ember/component';\n      Component.extend({\n        classNameBindings: ['isEnabled::disabled'],\n        isEnabled: false\n      });\n      ```\n       This list of properties is inherited from the component's superclasses as well.\n       @property classNameBindings\n      @type Array\n      @default []\n      @public\n    */\n    classNameBindings: EMPTY_ARRAY\n  });\n\n  _exports.default = _default;\n});","define(\"@ember/-internals/views/lib/mixins/text_support\", [\"exports\", \"@ember/-internals/metal\", \"@ember/-internals/runtime\", \"@ember/debug\", \"@ember/deprecated-features\"], function (_exports, _metal, _runtime, _debug, _deprecatedFeatures) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n  @module ember\n  */\n  var KEY_EVENTS = {\n    13: 'insertNewline',\n    27: 'cancel'\n  };\n  /**\n    `TextSupport` is a shared mixin used by both `TextField` and\n    `TextArea`. `TextSupport` adds a number of methods that allow you to\n    specify a controller action to invoke when a certain event is fired on your\n    text field or textarea. The specified controller action would get the current\n    value of the field passed in as the only argument unless the value of\n    the field is empty. In that case, the instance of the field itself is passed\n    in as the only argument.\n  \n    Let's use the pressing of the escape key as an example. If you wanted to\n    invoke a controller action when a user presses the escape key while on your\n    field, you would use the `escape-press` attribute on your field like so:\n  \n    ```handlebars\n      {{! application.hbs}}\n  \n      {{input escape-press='alertUser'}}\n    ```\n  \n    ```javascript\n        import Application from '@ember/application';\n        import Controller from '@ember/controller';\n        App = Application.create();\n  \n        App.ApplicationController = Controller.extend({\n          actions: {\n            alertUser: function ( currentValue ) {\n              alert( 'escape pressed, current value: ' + currentValue );\n            }\n          }\n        });\n    ```\n  \n    The following chart is a visual representation of what takes place when the\n    escape key is pressed in this scenario:\n  \n    ```\n    The Template\n    +---------------------------+\n    |                           |\n    | escape-press='alertUser'  |\n    |                           |          TextSupport Mixin\n    +----+----------------------+          +-------------------------------+\n         |                                 | cancel method                 |\n         |      escape button pressed      |                               |\n         +-------------------------------> | checks for the `escape-press` |\n                                           | attribute and pulls out the   |\n         +-------------------------------+ | `alertUser` value             |\n         |     action name 'alertUser'     +-------------------------------+\n         |     sent to controller\n         v\n    Controller\n    +------------------------------------------ +\n    |                                           |\n    |  actions: {                               |\n    |     alertUser: function( currentValue ){  |\n    |       alert( 'the esc key was pressed!' ) |\n    |     }                                     |\n    |  }                                        |\n    |                                           |\n    +-------------------------------------------+\n    ```\n  \n    Here are the events that we currently support along with the name of the\n    attribute you would need to use on your field. To reiterate, you would use the\n    attribute name like so:\n  \n    ```handlebars\n      {{input attribute-name='controllerAction'}}\n    ```\n  \n    ```\n    +--------------------+----------------+\n    |                    |                |\n    | event              | attribute name |\n    +--------------------+----------------+\n    | new line inserted  | insert-newline |\n    |                    |                |\n    | enter key pressed  | enter          |\n    |                    |                |\n    | cancel key pressed | escape-press   |\n    |                    |                |\n    | focusin            | focus-in       |\n    |                    |                |\n    | focusout           | focus-out      |\n    |                    |                |\n    | keypress           | key-press      |\n    |                    |                |\n    | keyup              | key-up         |\n    |                    |                |\n    | keydown            | key-down       |\n    +--------------------+----------------+\n    ```\n  \n    @class TextSupport\n    @namespace Ember\n    @uses Ember.TargetActionSupport\n    @extends Mixin\n    @private\n  */\n\n  var _default = _metal.Mixin.create(_runtime.TargetActionSupport, {\n    value: '',\n    attributeBindings: ['autocapitalize', 'autocorrect', 'autofocus', 'disabled', 'form', 'maxlength', 'minlength', 'placeholder', 'readonly', 'required', 'selectionDirection', 'spellcheck', 'tabindex', 'title'],\n    placeholder: null,\n    disabled: false,\n    maxlength: null,\n\n    init() {\n      this._super(...arguments);\n\n      this.on('paste', this, this._elementValueDidChange);\n      this.on('cut', this, this._elementValueDidChange);\n      this.on('input', this, this._elementValueDidChange);\n    },\n\n    /**\n      Whether the `keyUp` event that triggers an `action` to be sent continues\n      propagating to other views.\n       By default, when the user presses the return key on their keyboard and\n      the text field has an `action` set, the action will be sent to the view's\n      controller and the key event will stop propagating.\n       If you would like parent views to receive the `keyUp` event even after an\n      action has been dispatched, set `bubbles` to true.\n       @property bubbles\n      @type Boolean\n      @default false\n      @private\n    */\n    bubbles: false,\n\n    interpretKeyEvents(event) {\n      var map = KEY_EVENTS;\n      var method = map[event.keyCode];\n\n      this._elementValueDidChange();\n\n      if (method) {\n        return this[method](event);\n      }\n    },\n\n    _elementValueDidChange() {\n      (0, _metal.set)(this, 'value', this.element.value);\n    },\n\n    change(event) {\n      this._elementValueDidChange(event);\n    },\n\n    /**\n      Allows you to specify a controller action to invoke when either the `enter`\n      key is pressed or, in the case of the field being a textarea, when a newline\n      is inserted. To use this method, give your field an `insert-newline`\n      attribute. The value of that attribute should be the name of the action\n      in your controller that you wish to invoke.\n       For an example on how to use the `insert-newline` attribute, please\n      reference the example near the top of this file.\n       @method insertNewline\n      @param {Event} event\n      @private\n    */\n    insertNewline(event) {\n      sendAction('enter', this, event);\n      sendAction('insert-newline', this, event);\n    },\n\n    /**\n      Allows you to specify a controller action to invoke when the escape button\n      is pressed. To use this method, give your field an `escape-press`\n      attribute. The value of that attribute should be the name of the action\n      in your controller that you wish to invoke.\n       For an example on how to use the `escape-press` attribute, please reference\n      the example near the top of this file.\n       @method cancel\n      @param {Event} event\n      @private\n    */\n    cancel(event) {\n      sendAction('escape-press', this, event);\n    },\n\n    /**\n      Allows you to specify a controller action to invoke when a field receives\n      focus. To use this method, give your field a `focus-in` attribute. The value\n      of that attribute should be the name of the action in your controller\n      that you wish to invoke.\n       For an example on how to use the `focus-in` attribute, please reference the\n      example near the top of this file.\n       @method focusIn\n      @param {Event} event\n      @private\n    */\n    focusIn(event) {\n      sendAction('focus-in', this, event);\n    },\n\n    /**\n      Allows you to specify a controller action to invoke when a field loses\n      focus. To use this method, give your field a `focus-out` attribute. The value\n      of that attribute should be the name of the action in your controller\n      that you wish to invoke.\n       For an example on how to use the `focus-out` attribute, please reference the\n      example near the top of this file.\n       @method focusOut\n      @param {Event} event\n      @private\n    */\n    focusOut(event) {\n      this._elementValueDidChange(event);\n\n      sendAction('focus-out', this, event);\n    },\n\n    /**\n      Allows you to specify a controller action to invoke when a key is pressed.\n      To use this method, give your field a `key-press` attribute. The value of\n      that attribute should be the name of the action in your controller you\n      that wish to invoke.\n       For an example on how to use the `key-press` attribute, please reference the\n      example near the top of this file.\n       @method keyPress\n      @param {Event} event\n      @private\n    */\n    keyPress(event) {\n      sendAction('key-press', this, event);\n    },\n\n    /**\n      Allows you to specify a controller action to invoke when a key-up event is\n      fired. To use this method, give your field a `key-up` attribute. The value\n      of that attribute should be the name of the action in your controller\n      that you wish to invoke.\n       For an example on how to use the `key-up` attribute, please reference the\n      example near the top of this file.\n       @method keyUp\n      @param {Event} event\n      @private\n    */\n    keyUp(event) {\n      this.interpretKeyEvents(event);\n      sendAction('key-up', this, event);\n    },\n\n    /**\n      Allows you to specify a controller action to invoke when a key-down event is\n      fired. To use this method, give your field a `key-down` attribute. The value\n      of that attribute should be the name of the action in your controller that\n      you wish to invoke.\n       For an example on how to use the `key-down` attribute, please reference the\n      example near the top of this file.\n       @method keyDown\n      @param {Event} event\n      @private\n    */\n    keyDown(event) {\n      sendAction('key-down', this, event);\n    }\n\n  }); // In principle, this shouldn't be necessary, but the legacy\n  // sendAction semantics for TextField are different from\n  // the component semantics so this method normalizes them.\n\n\n  _exports.default = _default;\n\n  function sendAction(eventName, view, event) {\n    var actionName = (0, _metal.get)(view, `attrs.${eventName}`) || (0, _metal.get)(view, eventName);\n    var value = (0, _metal.get)(view, 'value');\n\n    if (_deprecatedFeatures.SEND_ACTION && typeof actionName === 'string') {\n      var message = `Passing actions to components as strings (like \\`<Input @${eventName}=\"${actionName}\" />\\`) is deprecated. Please use closure actions instead (\\`<Input @${eventName}={{action \"${actionName}\"}} />\\`).`;\n      (true && !(false) && (0, _debug.deprecate)(message, false, {\n        id: 'ember-component.send-action',\n        until: '4.0.0',\n        url: 'https://emberjs.com/deprecations/v3.x#toc_ember-component-send-action'\n      }));\n      view.triggerAction({\n        action: actionName,\n        actionContext: [value, event]\n      });\n    } else if (typeof actionName === 'function') {\n      actionName(value, event);\n    }\n\n    if (actionName && !(0, _metal.get)(view, 'bubbles')) {\n      event.stopPropagation();\n    }\n  }\n});","define(\"@ember/-internals/views/lib/mixins/view_state_support\", [\"exports\", \"@ember/-internals/metal\"], function (_exports, _metal) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n  @module ember\n  */\n  var _default = _metal.Mixin.create({\n    _transitionTo(state) {\n      var priorState = this._currentState;\n      var currentState = this._currentState = this._states[state];\n      this._state = state;\n\n      if (priorState && priorState.exit) {\n        priorState.exit(this);\n      }\n\n      if (currentState.enter) {\n        currentState.enter(this);\n      }\n    }\n\n  });\n\n  _exports.default = _default;\n});","define(\"@ember/-internals/views/lib/mixins/view_support\", [\"exports\", \"@ember/-internals/utils\", \"@ember/-internals/metal\", \"@ember/debug\", \"@ember/-internals/browser-environment\", \"@ember/-internals/views/lib/system/utils\", \"@ember/-internals/views/lib/system/jquery\", \"@ember/deprecated-features\"], function (_exports, _utils, _metal, _debug, _browserEnvironment, _utils2, _jquery, _deprecatedFeatures) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  function K() {\n    return this;\n  }\n\n  var mixin = {\n    /**\n     A list of properties of the view to apply as attributes. If the property\n     is a string value, the value of that string will be applied as the value\n     for an attribute of the property's name.\n      The following example creates a tag like `<div priority=\"high\" />`.\n      ```app/components/my-component.js\n     import Component from '@ember/component';\n      export default Component.extend({\n        attributeBindings: ['priority'],\n        priority: 'high'\n      });\n     ```\n      If the value of the property is a Boolean, the attribute is treated as\n     an HTML Boolean attribute. It will be present if the property is `true`\n     and omitted if the property is `false`.\n      The following example creates markup like `<div visible />`.\n      ```app/components/my-component.js\n     import Component from '@ember/component';\n      export default Component.extend({\n        attributeBindings: ['visible'],\n        visible: true\n      });\n     ```\n      If you would prefer to use a custom value instead of the property name,\n     you can create the same markup as the last example with a binding like\n     this:\n      ```app/components/my-component.js\n     import Component from '@ember/component';\n      export default Component.extend({\n        attributeBindings: ['isVisible:visible'],\n        isVisible: true\n      });\n     ```\n      This list of attributes is inherited from the component's superclasses,\n     as well.\n      @property attributeBindings\n     @type Array\n     @default []\n     @public\n     */\n    concatenatedProperties: ['attributeBindings'],\n\n    // ..........................................................\n    // TEMPLATE SUPPORT\n    //\n\n    /**\n     Return the nearest ancestor that is an instance of the provided\n     class or mixin.\n      @method nearestOfType\n     @param {Class,Mixin} klass Subclass of Ember.View (or Ember.View itself),\n     or an instance of Mixin.\n     @return Ember.View\n     @deprecated use `yield` and contextual components for composition instead.\n     @private\n     */\n    nearestOfType(klass) {\n      var view = this.parentView;\n      var isOfType = klass instanceof _metal.Mixin ? view => klass.detect(view) : view => klass.detect(view.constructor);\n\n      while (view) {\n        if (isOfType(view)) {\n          return view;\n        }\n\n        view = view.parentView;\n      }\n    },\n\n    /**\n     Return the nearest ancestor that has a given property.\n      @method nearestWithProperty\n     @param {String} property A property name\n     @return Ember.View\n     @deprecated use `yield` and contextual components for composition instead.\n     @private\n     */\n    nearestWithProperty(property) {\n      var view = this.parentView;\n\n      while (view) {\n        if (property in view) {\n          return view;\n        }\n\n        view = view.parentView;\n      }\n    },\n\n    /**\n     Renders the view again. This will work regardless of whether the\n     view is already in the DOM or not. If the view is in the DOM, the\n     rendering process will be deferred to give bindings a chance\n     to synchronize.\n      If children were added during the rendering process using `appendChild`,\n     `rerender` will remove them, because they will be added again\n     if needed by the next `render`.\n      In general, if the display of your view changes, you should modify\n     the DOM element directly instead of manually calling `rerender`, which can\n     be slow.\n      @method rerender\n     @public\n     */\n    rerender() {\n      return this._currentState.rerender(this);\n    },\n\n    // ..........................................................\n    // ELEMENT SUPPORT\n    //\n\n    /**\n     Returns the current DOM element for the view.\n       @property element\n      @type DOMElement\n      @public\n    */\n    element: (0, _metal.nativeDescDecorator)({\n      configurable: false,\n      enumerable: false,\n\n      get() {\n        return this.renderer.getElement(this);\n      }\n\n    }),\n\n    /**\n     Appends the view's element to the specified parent element.\n      Note that this method just schedules the view to be appended; the DOM\n     element will not be appended to the given element until all bindings have\n     finished synchronizing.\n      This is not typically a function that you will need to call directly when\n     building your application. If you do need to use `appendTo`, be sure that\n     the target element you are providing is associated with an `Application`\n     and does not have an ancestor element that is associated with an Ember view.\n      @method appendTo\n     @param {String|DOMElement|jQuery} A selector, element, HTML string, or jQuery object\n     @return {Ember.View} receiver\n     @private\n     */\n    appendTo(selector) {\n      var target;\n\n      if (_browserEnvironment.hasDOM) {\n        target = typeof selector === 'string' ? document.querySelector(selector) : selector;\n        (true && !(target) && (0, _debug.assert)(`You tried to append to (${selector}) but that isn't in the DOM`, target));\n        (true && !(!(0, _utils2.matches)(target, '.ember-view')) && (0, _debug.assert)('You cannot append to an existing Ember.View.', !(0, _utils2.matches)(target, '.ember-view')));\n        (true && !((() => {\n          var node = target.parentNode;\n\n          while (node) {\n            if (node.nodeType !== 9 && (0, _utils2.matches)(node, '.ember-view')) {\n              return false;\n            }\n\n            node = node.parentNode;\n          }\n\n          return true;\n        })()) && (0, _debug.assert)('You cannot append to an existing Ember.View.', (() => {\n          var node = target.parentNode;\n\n          while (node) {\n            if (node.nodeType !== 9 && (0, _utils2.matches)(node, '.ember-view')) {\n              return false;\n            }\n\n            node = node.parentNode;\n          }\n\n          return true;\n        })()));\n      } else {\n        target = selector;\n        (true && !(typeof target !== 'string') && (0, _debug.assert)(`You tried to append to a selector string (${selector}) in an environment without jQuery`, typeof target !== 'string'));\n        (true && !(typeof selector.appendChild === 'function') && (0, _debug.assert)(`You tried to append to a non-Element (${selector}) in an environment without jQuery`, typeof selector.appendChild === 'function'));\n      }\n\n      this.renderer.appendTo(this, target);\n      return this;\n    },\n\n    /**\n     Appends the view's element to the document body. If the view does\n     not have an HTML representation yet\n     the element will be generated automatically.\n      If your application uses the `rootElement` property, you must append\n     the view within that element. Rendering views outside of the `rootElement`\n     is not supported.\n      Note that this method just schedules the view to be appended; the DOM\n     element will not be appended to the document body until all bindings have\n     finished synchronizing.\n      @method append\n     @return {Ember.View} receiver\n     @private\n     */\n    append() {\n      return this.appendTo(document.body);\n    },\n\n    /**\n     The HTML `id` of the view's element in the DOM. You can provide this\n     value yourself but it must be unique (just as in HTML):\n      ```handlebars\n     {{my-component elementId=\"a-really-cool-id\"}}\n     ```\n      If not manually set a default value will be provided by the framework.\n      Once rendered an element's `elementId` is considered immutable and you\n     should never change it. If you need to compute a dynamic value for the\n     `elementId`, you should do this when the component or element is being\n     instantiated:\n      ```app/components/my-component.js\n     import Component from '@ember/component';\n      export default Component.extend({\n        init() {\n          this._super(...arguments);\n          let index = this.get('index');\n          this.set('elementId', 'component-id' + index);\n        }\n      });\n     ```\n      @property elementId\n     @type String\n     @public\n     */\n    elementId: null,\n\n    /**\n     Called when a view is going to insert an element into the DOM.\n      @event willInsertElement\n     @public\n     */\n    willInsertElement: K,\n\n    /**\n     Called when the element of the view has been inserted into the DOM.\n     Override this function to do any set up that requires an element\n     in the document body.\n      When a view has children, didInsertElement will be called on the\n     child view(s) first and on itself afterwards.\n      @event didInsertElement\n     @public\n     */\n    didInsertElement: K,\n\n    /**\n     Called when the view is about to rerender, but before anything has\n     been torn down. This is a good opportunity to tear down any manual\n     observers you have installed based on the DOM state\n      @event willClearRender\n     @public\n     */\n    willClearRender: K,\n\n    /**\n     You must call `destroy` on a view to destroy the view (and all of its\n     child views). This will remove the view from any parent node, then make\n     sure that the DOM element managed by the view can be released by the\n     memory manager.\n      @method destroy\n     @private\n     */\n    destroy() {\n      this._super(...arguments);\n\n      this._currentState.destroy(this);\n    },\n\n    /**\n     Called when the element of the view is going to be destroyed. Override\n     this function to do any teardown that requires an element, like removing\n     event listeners.\n      Please note: any property changes made during this event will have no\n     effect on object observers.\n      @event willDestroyElement\n     @public\n     */\n    willDestroyElement: K,\n\n    /**\n     Called after the element of the view is destroyed.\n      @event willDestroyElement\n     @public\n     */\n    didDestroyElement: K,\n\n    /**\n     Called when the parentView property has changed.\n      @event parentViewDidChange\n     @private\n     */\n    parentViewDidChange: K,\n    // ..........................................................\n    // STANDARD RENDER PROPERTIES\n    //\n\n    /**\n     Tag name for the view's outer element. The tag name is only used when an\n     element is first created. If you change the `tagName` for an element, you\n     must destroy and recreate the view element.\n      By default, the render buffer will use a `<div>` tag for views.\n      If the tagName is `''`, the view will be tagless, with no outer element.\n     Component properties that depend on the presence of an outer element, such\n     as `classNameBindings` and `attributeBindings`, do not work with tagless\n     components. Tagless components cannot implement methods to handle events,\n     and have no associated jQuery object to return with `$()`.\n      @property tagName\n     @type String\n     @default null\n     @public\n     */\n    // We leave this null by default so we can tell the difference between\n    // the default case and a user-specified tag.\n    tagName: null,\n\n    // .......................................................\n    // CORE DISPLAY METHODS\n    //\n\n    /**\n     Setup a view, but do not finish waking it up.\n      * configure `childViews`\n     * register the view with the global views hash, which is used for event\n     dispatch\n      @method init\n     @private\n     */\n    init() {\n      this._super(...arguments); // tslint:disable-next-line:max-line-length\n\n\n      (true && !((0, _metal.descriptorForProperty)(this, 'elementId') === undefined) && (0, _debug.assert)(`You cannot use a computed property for the component's \\`elementId\\` (${this}).`, (0, _metal.descriptorForProperty)(this, 'elementId') === undefined)); // tslint:disable-next-line:max-line-length\n\n      (true && !((0, _metal.descriptorForProperty)(this, 'tagName') === undefined) && (0, _debug.assert)(`You cannot use a computed property for the component's \\`tagName\\` (${this}).`, (0, _metal.descriptorForProperty)(this, 'tagName') === undefined));\n\n      if (!this.elementId && this.tagName !== '') {\n        this.elementId = (0, _utils.guidFor)(this);\n      }\n\n      (true && !(!this.render) && (0, _debug.assert)('Using a custom `.render` function is no longer supported.', !this.render));\n    },\n\n    // .......................................................\n    // EVENT HANDLING\n    //\n\n    /**\n     Handle events from `EventDispatcher`\n      @method handleEvent\n     @param eventName {String}\n     @param evt {Event}\n     @private\n     */\n    handleEvent(eventName, evt) {\n      return this._currentState.handleEvent(this, eventName, evt);\n    }\n\n  };\n\n  if (_deprecatedFeatures.JQUERY_INTEGRATION) {\n    /**\n     Returns a jQuery object for this view's element. If you pass in a selector\n     string, this method will return a jQuery object, using the current element\n     as its buffer.\n      For example, calling `view.$('li')` will return a jQuery object containing\n     all of the `li` elements inside the DOM element of this view.\n      @method $\n     @param {String} [selector] a jQuery-compatible selector string\n     @return {jQuery} the jQuery object for the DOM node\n     @public\n     @deprecated\n     */\n    mixin.$ = function $(sel) {\n      (true && !(this.tagName !== '') && (0, _debug.assert)(\"You cannot access this.$() on a component with `tagName: ''` specified.\", this.tagName !== ''));\n      (true && !(!_jquery.jQueryDisabled) && (0, _debug.assert)('You cannot access this.$() with `jQuery` disabled.', !_jquery.jQueryDisabled));\n      (true && !(false) && (0, _debug.deprecate)('Using this.$() in a component has been deprecated, consider using this.element', false, {\n        id: 'ember-views.curly-components.jquery-element',\n        until: '4.0.0',\n        url: 'https://emberjs.com/deprecations/v3.x#toc_jquery-apis'\n      }));\n\n      if (this.element) {\n        return sel ? (0, _jquery.jQuery)(sel, this.element) : (0, _jquery.jQuery)(this.element);\n      }\n    };\n  }\n  /**\n   @class ViewMixin\n   @namespace Ember\n   @private\n  */\n\n\n  var _default = _metal.Mixin.create(mixin);\n\n  _exports.default = _default;\n});","define(\"@ember/-internals/views/lib/system/action_manager\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = ActionManager;\n\n  /**\n  @module ember\n  */\n  function ActionManager() {}\n  /**\n    Global action id hash.\n  \n    @private\n    @property registeredActions\n    @type Object\n  */\n\n\n  ActionManager.registeredActions = {};\n});","define(\"@ember/-internals/views/lib/system/event_dispatcher\", [\"exports\", \"@ember/-internals/owner\", \"@ember/polyfills\", \"@ember/debug\", \"@ember/-internals/metal\", \"@ember/-internals/runtime\", \"@ember/-internals/views\", \"@ember/-internals/views/lib/system/jquery\", \"@ember/-internals/views/lib/system/action_manager\", \"@ember/-internals/views/lib/system/jquery_event_deprecation\", \"@ember/-internals/views/lib/system/utils\", \"@ember/deprecated-features\"], function (_exports, _owner, _polyfills, _debug, _metal, _runtime, _views, _jquery, _action_manager, _jquery_event_deprecation, _utils, _deprecatedFeatures) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n  @module ember\n  */\n  var ROOT_ELEMENT_CLASS = 'ember-application';\n  var ROOT_ELEMENT_SELECTOR = `.${ROOT_ELEMENT_CLASS}`;\n  var EVENT_MAP = {\n    mouseenter: 'mouseover',\n    mouseleave: 'mouseout'\n  };\n  /**\n    `Ember.EventDispatcher` handles delegating browser events to their\n    corresponding `Ember.Views.` For example, when you click on a view,\n    `Ember.EventDispatcher` ensures that that view's `mouseDown` method gets\n    called.\n  \n    @class EventDispatcher\n    @namespace Ember\n    @private\n    @extends Ember.Object\n  */\n\n  var _default = _runtime.Object.extend({\n    /**\n      The set of events names (and associated handler function names) to be setup\n      and dispatched by the `EventDispatcher`. Modifications to this list can be done\n      at setup time, generally via the `Application.customEvents` hash.\n       To add new events to be listened to:\n       ```javascript\n      import Application from '@ember/application';\n       let App = Application.create({\n        customEvents: {\n          paste: 'paste'\n        }\n      });\n      ```\n       To prevent default events from being listened to:\n       ```javascript\n      import Application from '@ember/application';\n       let App = Application.create({\n        customEvents: {\n          mouseenter: null,\n          mouseleave: null\n        }\n      });\n      ```\n      @property events\n      @type Object\n      @private\n    */\n    events: (0, _polyfills.assign)({\n      touchstart: 'touchStart',\n      touchmove: 'touchMove',\n      touchend: 'touchEnd',\n      touchcancel: 'touchCancel',\n      keydown: 'keyDown',\n      keyup: 'keyUp',\n      keypress: 'keyPress',\n      mousedown: 'mouseDown',\n      mouseup: 'mouseUp',\n      contextmenu: 'contextMenu',\n      click: 'click',\n      dblclick: 'doubleClick',\n      focusin: 'focusIn',\n      focusout: 'focusOut',\n      submit: 'submit',\n      input: 'input',\n      change: 'change',\n      dragstart: 'dragStart',\n      drag: 'drag',\n      dragenter: 'dragEnter',\n      dragleave: 'dragLeave',\n      dragover: 'dragOver',\n      drop: 'drop',\n      dragend: 'dragEnd'\n    }, _deprecatedFeatures.MOUSE_ENTER_LEAVE_MOVE_EVENTS ? {\n      mouseenter: 'mouseEnter',\n      mouseleave: 'mouseLeave',\n      mousemove: 'mouseMove'\n    } : {}),\n\n    /**\n      The root DOM element to which event listeners should be attached. Event\n      listeners will be attached to the document unless this is overridden.\n       Can be specified as a DOMElement or a selector string.\n       The default body is a string since this may be evaluated before document.body\n      exists in the DOM.\n       @private\n      @property rootElement\n      @type DOMElement\n      @default 'body'\n    */\n    rootElement: 'body',\n\n    init() {\n      this._super();\n\n      (true && !((() => {\n        var owner = (0, _owner.getOwner)(this);\n        var environment = owner.lookup('-environment:main');\n        return environment.isInteractive;\n      })()) && (0, _debug.assert)('EventDispatcher should never be instantiated in fastboot mode. Please report this as an Ember bug.', (() => {\n        var owner = (0, _owner.getOwner)(this);\n        var environment = owner.lookup('-environment:main');\n        return environment.isInteractive;\n      })()));\n      this._eventHandlers = Object.create(null);\n    },\n\n    /**\n      Sets up event listeners for standard browser events.\n       This will be called after the browser sends a `DOMContentReady` event. By\n      default, it will set up all of the listeners on the document body. If you\n      would like to register the listeners on a different element, set the event\n      dispatcher's `root` property.\n       @private\n      @method setup\n      @param addedEvents {Object}\n    */\n    setup(addedEvents, _rootElement) {\n      var events = this._finalEvents = (0, _polyfills.assign)({}, (0, _metal.get)(this, 'events'), addedEvents);\n\n      if (_rootElement !== undefined && _rootElement !== null) {\n        (0, _metal.set)(this, 'rootElement', _rootElement);\n      }\n\n      var rootElementSelector = (0, _metal.get)(this, 'rootElement');\n      var rootElement;\n\n      if (!_deprecatedFeatures.JQUERY_INTEGRATION || _jquery.jQueryDisabled) {\n        if (typeof rootElementSelector !== 'string') {\n          rootElement = rootElementSelector;\n        } else {\n          rootElement = document.querySelector(rootElementSelector);\n        }\n\n        (true && !(!rootElement.classList.contains(ROOT_ELEMENT_CLASS)) && (0, _debug.assert)(`You cannot use the same root element (${(0, _metal.get)(this, 'rootElement') || rootElement.tagName}) multiple times in an Ember.Application`, !rootElement.classList.contains(ROOT_ELEMENT_CLASS)));\n        (true && !((() => {\n          var target = rootElement.parentNode;\n\n          do {\n            if (target.classList.contains(ROOT_ELEMENT_CLASS)) {\n              return false;\n            }\n\n            target = target.parentNode;\n          } while (target && target.nodeType === 1);\n\n          return true;\n        })()) && (0, _debug.assert)('You cannot make a new Ember.Application using a root element that is a descendent of an existing Ember.Application', (() => {\n          var target = rootElement.parentNode;\n\n          do {\n            if (target.classList.contains(ROOT_ELEMENT_CLASS)) {\n              return false;\n            }\n\n            target = target.parentNode;\n          } while (target && target.nodeType === 1);\n\n          return true;\n        })()));\n        (true && !(!rootElement.querySelector(ROOT_ELEMENT_SELECTOR)) && (0, _debug.assert)('You cannot make a new Ember.Application using a root element that is an ancestor of an existing Ember.Application', !rootElement.querySelector(ROOT_ELEMENT_SELECTOR)));\n        rootElement.classList.add(ROOT_ELEMENT_CLASS);\n        (true && !(rootElement.classList.contains(ROOT_ELEMENT_CLASS)) && (0, _debug.assert)(`Unable to add '${ROOT_ELEMENT_CLASS}' class to root element (${(0, _metal.get)(this, 'rootElement') || rootElement.tagName}). Make sure you set rootElement to the body or an element in the body.`, rootElement.classList.contains(ROOT_ELEMENT_CLASS)));\n      } else {\n        rootElement = (0, _jquery.jQuery)(rootElementSelector);\n        (true && !(!rootElement.is(ROOT_ELEMENT_SELECTOR)) && (0, _debug.assert)(`You cannot use the same root element (${rootElement.selector || rootElement[0].tagName}) multiple times in an Ember.Application`, !rootElement.is(ROOT_ELEMENT_SELECTOR)));\n        (true && !(!rootElement.closest(ROOT_ELEMENT_SELECTOR).length) && (0, _debug.assert)('You cannot make a new Ember.Application using a root element that is a descendent of an existing Ember.Application', !rootElement.closest(ROOT_ELEMENT_SELECTOR).length));\n        (true && !(!rootElement.find(ROOT_ELEMENT_SELECTOR).length) && (0, _debug.assert)('You cannot make a new Ember.Application using a root element that is an ancestor of an existing Ember.Application', !rootElement.find(ROOT_ELEMENT_SELECTOR).length));\n        rootElement.addClass(ROOT_ELEMENT_CLASS);\n\n        if (!rootElement.is(ROOT_ELEMENT_SELECTOR)) {\n          throw new TypeError(`Unable to add '${ROOT_ELEMENT_CLASS}' class to root element (${rootElement.selector || rootElement[0].tagName}). Make sure you set rootElement to the body or an element in the body.`);\n        }\n      }\n\n      for (var event in events) {\n        if (events.hasOwnProperty(event)) {\n          this.setupHandler(rootElement, event, events[event]);\n        }\n      }\n    },\n\n    /**\n      Registers an event listener on the rootElement. If the given event is\n      triggered, the provided event handler will be triggered on the target view.\n       If the target view does not implement the event handler, or if the handler\n      returns `false`, the parent view will be called. The event will continue to\n      bubble to each successive parent view until it reaches the top.\n       @private\n      @method setupHandler\n      @param {Element} rootElement\n      @param {String} event the browser-originated event to listen to\n      @param {String} eventName the name of the method to call on the view\n    */\n    setupHandler(rootElement, event, eventName) {\n      if (eventName === null) {\n        return;\n      }\n\n      if (!_deprecatedFeatures.JQUERY_INTEGRATION || _jquery.jQueryDisabled) {\n        var viewHandler = (target, event) => {\n          var view = (0, _views.getElementView)(target);\n          var result = true;\n\n          if (view) {\n            result = view.handleEvent(eventName, event);\n          }\n\n          return result;\n        };\n\n        var actionHandler = (target, event) => {\n          var actionId = target.getAttribute('data-ember-action');\n          var actions = _action_manager.default.registeredActions[actionId]; // In Glimmer2 this attribute is set to an empty string and an additional\n          // attribute it set for each action on a given element. In this case, the\n          // attributes need to be read so that a proper set of action handlers can\n          // be coalesced.\n\n          if (actionId === '') {\n            var attributes = target.attributes;\n            var attributeCount = attributes.length;\n            actions = [];\n\n            for (var i = 0; i < attributeCount; i++) {\n              var attr = attributes.item(i);\n              var attrName = attr.name;\n\n              if (attrName.indexOf('data-ember-action-') === 0) {\n                actions = actions.concat(_action_manager.default.registeredActions[attr.value]);\n              }\n            }\n          } // We have to check for actions here since in some cases, jQuery will trigger\n          // an event on `removeChild` (i.e. focusout) after we've already torn down the\n          // action handlers for the view.\n\n\n          if (!actions) {\n            return;\n          }\n\n          var result = true;\n\n          for (var index = 0; index < actions.length; index++) {\n            var action = actions[index];\n\n            if (action && action.eventName === eventName) {\n              // return false if any of the action handlers returns false\n              result = action.handler(event) && result;\n            }\n          }\n\n          return result;\n        }; // Special handling of events that don't bubble (event delegation does not work).\n        // Mimics the way this is handled in jQuery,\n        // see https://github.com/jquery/jquery/blob/899c56f6ada26821e8af12d9f35fa039100e838e/src/event.js#L666-L700\n\n\n        if (_deprecatedFeatures.MOUSE_ENTER_LEAVE_MOVE_EVENTS && EVENT_MAP[event] !== undefined) {\n          var mappedEventType = EVENT_MAP[event];\n          var origEventType = event;\n\n          var createFakeEvent = (eventType, event) => {\n            var fakeEvent = document.createEvent('MouseEvent');\n            fakeEvent.initMouseEvent(eventType, false, false, event.view, event.detail, event.screenX, event.screenY, event.clientX, event.clientY, event.ctrlKey, event.altKey, event.shiftKey, event.metaKey, event.button, event.relatedTarget); // fake event.target as we don't dispatch the event\n\n            Object.defineProperty(fakeEvent, 'target', {\n              value: event.target,\n              enumerable: true\n            });\n            return fakeEvent;\n          };\n\n          var handleMappedEvent = this._eventHandlers[mappedEventType] = event => {\n            var target = event.target;\n            var related = event.relatedTarget;\n\n            while (target && target.nodeType === 1 && (related === null || related !== target && !(0, _utils.contains)(target, related))) {\n              // mouseEnter/Leave don't bubble, so there is no logic to prevent it as with other events\n              if ((0, _views.getElementView)(target)) {\n                viewHandler(target, createFakeEvent(origEventType, event));\n              } else if (target.hasAttribute('data-ember-action')) {\n                actionHandler(target, createFakeEvent(origEventType, event));\n              } // separate mouseEnter/Leave events are dispatched for each listening element\n              // until the element (related) has been reached that the pointing device exited from/to\n\n\n              target = target.parentNode;\n            }\n          };\n\n          rootElement.addEventListener(mappedEventType, handleMappedEvent);\n        } else {\n          var handleEvent = this._eventHandlers[event] = event => {\n            var target = event.target;\n\n            do {\n              if ((0, _views.getElementView)(target)) {\n                if (viewHandler(target, event) === false) {\n                  event.preventDefault();\n                  event.stopPropagation();\n                  break;\n                } else if (event.cancelBubble === true) {\n                  break;\n                }\n              } else if (typeof target.hasAttribute === 'function' && target.hasAttribute('data-ember-action')) {\n                if (actionHandler(target, event) === false) {\n                  break;\n                }\n              }\n\n              target = target.parentNode;\n            } while (target && target.nodeType === 1);\n          };\n\n          rootElement.addEventListener(event, handleEvent);\n        }\n      } else {\n        rootElement.on(`${event}.ember`, '.ember-view', function (evt) {\n          var view = (0, _views.getElementView)(this);\n          var result = true;\n\n          if (view) {\n            result = view.handleEvent(eventName, (0, _jquery_event_deprecation.default)(evt));\n          }\n\n          return result;\n        });\n        rootElement.on(`${event}.ember`, '[data-ember-action]', evt => {\n          var attributes = evt.currentTarget.attributes;\n          var handledActions = [];\n          evt = (0, _jquery_event_deprecation.default)(evt);\n\n          for (var i = 0; i < attributes.length; i++) {\n            var attr = attributes.item(i);\n            var attrName = attr.name;\n\n            if (attrName.lastIndexOf('data-ember-action-', 0) !== -1) {\n              var action = _action_manager.default.registeredActions[attr.value]; // We have to check for action here since in some cases, jQuery will trigger\n              // an event on `removeChild` (i.e. focusout) after we've already torn down the\n              // action handlers for the view.\n\n              if (action && action.eventName === eventName && handledActions.indexOf(action) === -1) {\n                action.handler(evt); // Action handlers can mutate state which in turn creates new attributes on the element.\n                // This effect could cause the `data-ember-action` attribute to shift down and be invoked twice.\n                // To avoid this, we keep track of which actions have been handled.\n\n                handledActions.push(action);\n              }\n            }\n          }\n        });\n      }\n    },\n\n    destroy() {\n      var rootElementSelector = (0, _metal.get)(this, 'rootElement');\n      var rootElement;\n\n      if (rootElementSelector.nodeType) {\n        rootElement = rootElementSelector;\n      } else {\n        rootElement = document.querySelector(rootElementSelector);\n      }\n\n      if (!rootElement) {\n        return;\n      }\n\n      if (!_deprecatedFeatures.JQUERY_INTEGRATION || _jquery.jQueryDisabled) {\n        for (var event in this._eventHandlers) {\n          rootElement.removeEventListener(event, this._eventHandlers[event]);\n        }\n      } else {\n        (0, _jquery.jQuery)(rootElementSelector).off('.ember', '**');\n      }\n\n      rootElement.classList.remove(ROOT_ELEMENT_CLASS);\n      return this._super(...arguments);\n    },\n\n    toString() {\n      return '(EventDispatcher)';\n    }\n\n  });\n\n  _exports.default = _default;\n});","define(\"@ember/-internals/views/lib/system/jquery\", [\"exports\", \"@ember/-internals/environment\", \"@ember/-internals/browser-environment\", \"@ember/deprecated-features\"], function (_exports, _environment, _browserEnvironment, _deprecatedFeatures) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.jQueryDisabled = _exports.jQuery = void 0;\n  var jQuery;\n  _exports.jQuery = jQuery;\n  var jQueryDisabled = !_deprecatedFeatures.JQUERY_INTEGRATION || _environment.ENV._JQUERY_INTEGRATION === false;\n  _exports.jQueryDisabled = jQueryDisabled;\n\n  if (_deprecatedFeatures.JQUERY_INTEGRATION && _browserEnvironment.hasDOM) {\n    _exports.jQuery = jQuery = _environment.context.imports.jQuery;\n\n    if (!jQueryDisabled && jQuery) {\n      if (jQuery.event.addProp) {\n        jQuery.event.addProp('dataTransfer');\n      } else {\n        // http://www.whatwg.org/specs/web-apps/current-work/multipage/dnd.html#dndevents\n        ['dragstart', 'drag', 'dragenter', 'dragleave', 'dragover', 'drop', 'dragend'].forEach(eventName => {\n          jQuery.event.fixHooks[eventName] = {\n            props: ['dataTransfer']\n          };\n        });\n      }\n    } else {\n      _exports.jQuery = jQuery = undefined;\n      _exports.jQueryDisabled = jQueryDisabled = true;\n    }\n  }\n});","define(\"@ember/-internals/views/lib/system/jquery_event_deprecation\", [\"exports\", \"@ember/debug\", \"@ember/-internals/environment\", \"@ember/-internals/utils\", \"@ember/deprecated-features\"], function (_exports, _debug, _environment, _utils, _deprecatedFeatures) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = addJQueryEventDeprecation;\n\n  /* global Proxy */\n  function addJQueryEventDeprecation(jqEvent) {\n    if (true\n    /* DEBUG */\n    && _deprecatedFeatures.JQUERY_INTEGRATION && _utils.HAS_NATIVE_PROXY) {\n      var boundFunctions = new Map(); // wrap the jQuery event in a Proxy to add the deprecation message for originalEvent, according to RFC#294\n      // we need a native Proxy here, so we can make sure that the internal use of originalEvent in jQuery itself does\n      // not trigger a deprecation\n\n      return new Proxy(jqEvent, {\n        get(target, name) {\n          switch (name) {\n            case 'originalEvent':\n              (true && !((EmberENV => {\n                // this deprecation is intentionally checking `global.EmberENV` /\n                // `global.ENV` so that we can ensure we _only_ deprecate in the\n                // case where jQuery integration is enabled implicitly (e.g.\n                // \"defaulted\" to enabled) as opposed to when the user explicitly\n                // opts in to using jQuery\n                if (typeof EmberENV !== 'object' || EmberENV === null) return false;\n                return EmberENV._JQUERY_INTEGRATION === true;\n              })(_environment.global.EmberENV || _environment.global.ENV)) && (0, _debug.deprecate)('Accessing jQuery.Event specific properties is deprecated. Either use the ember-jquery-legacy addon to normalize events to native events, or explicitly opt into jQuery integration using @ember/optional-features.', (EmberENV => {\n                if (typeof EmberENV !== 'object' || EmberENV === null) return false;\n                return EmberENV._JQUERY_INTEGRATION === true;\n              })(_environment.global.EmberENV || _environment.global.ENV), {\n                id: 'ember-views.event-dispatcher.jquery-event',\n                until: '4.0.0',\n                url: 'https://emberjs.com/deprecations/v3.x#toc_jquery-event'\n              }));\n              return target[name];\n            // provide an escape hatch for ember-jquery-legacy to access originalEvent without a deprecation\n\n            case '__originalEvent':\n              return target.originalEvent;\n\n            default:\n              if (typeof target[name] === 'function') {\n                // cache functions for reuse\n                if (!boundFunctions.has(name)) {\n                  // for jQuery.Event methods call them with `target` as the `this` context, so they will access\n                  // `originalEvent` from the original jQuery event, not our proxy, thus not trigger the deprecation\n                  boundFunctions.set(name, target[name].bind(target));\n                }\n\n                return boundFunctions.get(name);\n              } // same for jQuery's getter functions for simple properties\n\n\n              return target[name];\n          }\n        }\n\n      });\n    }\n\n    return jqEvent;\n  }\n});","define(\"@ember/-internals/views/lib/system/utils\", [\"exports\", \"@ember/-internals/owner\", \"@ember/-internals/utils\", \"@ember/debug\"], function (_exports, _owner, _utils, _debug) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.isSimpleClick = isSimpleClick;\n  _exports.constructStyleDeprecationMessage = constructStyleDeprecationMessage;\n  _exports.getRootViews = getRootViews;\n  _exports.getViewId = getViewId;\n  _exports.getElementView = getElementView;\n  _exports.getViewElement = getViewElement;\n  _exports.setElementView = setElementView;\n  _exports.setViewElement = setViewElement;\n  _exports.clearElementView = clearElementView;\n  _exports.clearViewElement = clearViewElement;\n  _exports.getChildViews = getChildViews;\n  _exports.initChildViews = initChildViews;\n  _exports.addChildView = addChildView;\n  _exports.collectChildViews = collectChildViews;\n  _exports.getViewBounds = getViewBounds;\n  _exports.getViewRange = getViewRange;\n  _exports.getViewClientRects = getViewClientRects;\n  _exports.getViewBoundingClientRect = getViewBoundingClientRect;\n  _exports.matches = matches;\n  _exports.contains = contains;\n  _exports.elMatches = void 0;\n\n  /* globals Element */\n\n  /**\n  @module ember\n  */\n  function isSimpleClick(event) {\n    var modifier = event.shiftKey || event.metaKey || event.altKey || event.ctrlKey;\n    var secondaryClick = event.which > 1; // IE9 may return undefined\n\n    return !modifier && !secondaryClick;\n  }\n\n  function constructStyleDeprecationMessage(affectedStyle) {\n    return '' + 'Binding style attributes may introduce cross-site scripting vulnerabilities; ' + 'please ensure that values being bound are properly escaped. For more information, ' + 'including how to disable this warning, see ' + 'https://emberjs.com/deprecations/v1.x/#toc_binding-style-attributes. ' + 'Style affected: \"' + affectedStyle + '\"';\n  }\n  /**\n    @private\n    @method getRootViews\n    @param {Object} owner\n  */\n\n\n  function getRootViews(owner) {\n    var registry = owner.lookup('-view-registry:main');\n    var rootViews = [];\n    Object.keys(registry).forEach(id => {\n      var view = registry[id];\n\n      if (view.parentView === null) {\n        rootViews.push(view);\n      }\n    });\n    return rootViews;\n  }\n  /**\n    @private\n    @method getViewId\n    @param {Ember.View} view\n   */\n\n\n  function getViewId(view) {\n    if (view.tagName !== '' && view.elementId) {\n      return view.elementId;\n    } else {\n      return (0, _utils.guidFor)(view);\n    }\n  }\n\n  var ELEMENT_VIEW = new WeakMap();\n  var VIEW_ELEMENT = new WeakMap();\n\n  function getElementView(element) {\n    return ELEMENT_VIEW.get(element) || null;\n  }\n  /**\n    @private\n    @method getViewElement\n    @param {Ember.View} view\n   */\n\n\n  function getViewElement(view) {\n    return VIEW_ELEMENT.get(view) || null;\n  }\n\n  function setElementView(element, view) {\n    ELEMENT_VIEW.set(element, view);\n  }\n\n  function setViewElement(view, element) {\n    VIEW_ELEMENT.set(view, element);\n  } // These are not needed for GC, but for correctness. We want to be able to\n  // null-out these links while the objects are still live. Specifically, in\n  // this case, we want to prevent access to the element (and vice verse) during\n  // destruction.\n\n\n  function clearElementView(element) {\n    ELEMENT_VIEW.delete(element);\n  }\n\n  function clearViewElement(view) {\n    VIEW_ELEMENT.delete(view);\n  }\n\n  var CHILD_VIEW_IDS = new WeakMap();\n  /**\n    @private\n    @method getChildViews\n    @param {Ember.View} view\n  */\n\n  function getChildViews(view) {\n    var owner = (0, _owner.getOwner)(view);\n    var registry = owner.lookup('-view-registry:main');\n    return collectChildViews(view, registry);\n  }\n\n  function initChildViews(view) {\n    var childViews = new Set();\n    CHILD_VIEW_IDS.set(view, childViews);\n    return childViews;\n  }\n\n  function addChildView(parent, child) {\n    var childViews = CHILD_VIEW_IDS.get(parent);\n\n    if (childViews === undefined) {\n      childViews = initChildViews(parent);\n    }\n\n    childViews.add(getViewId(child));\n  }\n\n  function collectChildViews(view, registry) {\n    var views = [];\n    var childViews = CHILD_VIEW_IDS.get(view);\n\n    if (childViews !== undefined) {\n      childViews.forEach(id => {\n        var view = registry[id];\n\n        if (view && !view.isDestroying && !view.isDestroyed) {\n          views.push(view);\n        }\n      });\n    }\n\n    return views;\n  }\n  /**\n    @private\n    @method getViewBounds\n    @param {Ember.View} view\n  */\n\n\n  function getViewBounds(view) {\n    return view.renderer.getBounds(view);\n  }\n  /**\n    @private\n    @method getViewRange\n    @param {Ember.View} view\n  */\n\n\n  function getViewRange(view) {\n    var bounds = getViewBounds(view);\n    var range = document.createRange();\n    range.setStartBefore(bounds.firstNode);\n    range.setEndAfter(bounds.lastNode);\n    return range;\n  }\n  /**\n    `getViewClientRects` provides information about the position of the border\n    box edges of a view relative to the viewport.\n  \n    It is only intended to be used by development tools like the Ember Inspector\n    and may not work on older browsers.\n  \n    @private\n    @method getViewClientRects\n    @param {Ember.View} view\n  */\n\n\n  function getViewClientRects(view) {\n    var range = getViewRange(view);\n    return range.getClientRects();\n  }\n  /**\n    `getViewBoundingClientRect` provides information about the position of the\n    bounding border box edges of a view relative to the viewport.\n  \n    It is only intended to be used by development tools like the Ember Inspector\n    and may not work on older browsers.\n  \n    @private\n    @method getViewBoundingClientRect\n    @param {Ember.View} view\n  */\n\n\n  function getViewBoundingClientRect(view) {\n    var range = getViewRange(view);\n    return range.getBoundingClientRect();\n  }\n  /**\n    Determines if the element matches the specified selector.\n  \n    @private\n    @method matches\n    @param {DOMElement} el\n    @param {String} selector\n  */\n\n\n  var elMatches = typeof Element !== 'undefined' ? Element.prototype.matches || Element.prototype['matchesSelector'] || Element.prototype['mozMatchesSelector'] || Element.prototype['msMatchesSelector'] || Element.prototype['oMatchesSelector'] || Element.prototype['webkitMatchesSelector'] : undefined;\n  _exports.elMatches = elMatches;\n\n  function matches(el, selector) {\n    (true && !(elMatches !== undefined) && (0, _debug.assert)('cannot call `matches` in fastboot mode', elMatches !== undefined));\n    return elMatches.call(el, selector);\n  }\n\n  function contains(a, b) {\n    if (a.contains !== undefined) {\n      return a.contains(b);\n    }\n\n    var current = b.parentNode;\n\n    while (current && (current = current.parentNode)) {\n      if (current === a) {\n        return true;\n      }\n    }\n\n    return false;\n  }\n});","define(\"@ember/-internals/views/lib/views/core_view\", [\"exports\", \"@ember/-internals/runtime\", \"@ember/-internals/views/lib/views/states\"], function (_exports, _runtime, _states) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n    `Ember.CoreView` is an abstract class that exists to give view-like behavior\n    to both Ember's main view class `Component` and other classes that don't need\n    the full functionality of `Component`.\n  \n    Unless you have specific needs for `CoreView`, you will use `Component`\n    in your applications.\n  \n    @class CoreView\n    @namespace Ember\n    @extends EmberObject\n    @deprecated Use `Component` instead.\n    @uses Evented\n    @uses Ember.ActionHandler\n    @private\n  */\n  var CoreView = _runtime.FrameworkObject.extend(_runtime.Evented, _runtime.ActionHandler, {\n    isView: true,\n    _states: _states.default,\n\n    init() {\n      this._super(...arguments);\n\n      this._state = 'preRender';\n      this._currentState = this._states.preRender;\n\n      if (!this.renderer) {\n        throw new Error(`Cannot instantiate a component without a renderer. Please ensure that you are creating ${this} with a proper container/registry.`);\n      }\n    },\n\n    /**\n      If the view is currently inserted into the DOM of a parent view, this\n      property will point to the parent of the view.\n       @property parentView\n      @type Ember.View\n      @default null\n      @private\n    */\n    parentView: null,\n\n    instrumentDetails(hash) {\n      hash.object = this.toString();\n      hash.containerKey = this._debugContainerKey;\n      hash.view = this;\n      return hash;\n    },\n\n    /**\n      Override the default event firing from `Evented` to\n      also call methods with the given name.\n       @method trigger\n      @param name {String}\n      @private\n    */\n    trigger(name, ...args) {\n      this._super(...arguments);\n\n      var method = this[name];\n\n      if (typeof method === 'function') {\n        return method.apply(this, args);\n      }\n    },\n\n    has(name) {\n      return typeof this[name] === 'function' || this._super(name);\n    }\n\n  });\n\n  CoreView.reopenClass({\n    isViewFactory: true\n  });\n  var _default = CoreView;\n  _exports.default = _default;\n});","define(\"@ember/-internals/views/lib/views/states\", [\"exports\", \"@ember/-internals/views/lib/views/states/pre_render\", \"@ember/-internals/views/lib/views/states/has_element\", \"@ember/-internals/views/lib/views/states/in_dom\", \"@ember/-internals/views/lib/views/states/destroying\"], function (_exports, _pre_render, _has_element, _in_dom, _destroying) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /*\n    Describe how the specified actions should behave in the various\n    states that a view can exist in. Possible states:\n  \n    * preRender: when a view is first instantiated, and after its\n      element was destroyed, it is in the preRender state\n    * hasElement: the DOM representation of the view is created,\n      and is ready to be inserted\n    * inDOM: once a view has been inserted into the DOM it is in\n      the inDOM state. A view spends the vast majority of its\n      existence in this state.\n    * destroyed: once a view has been destroyed (using the destroy\n      method), it is in this state. No further actions can be invoked\n      on a destroyed view.\n  */\n  var states = Object.freeze({\n    preRender: _pre_render.default,\n    inDOM: _in_dom.default,\n    hasElement: _has_element.default,\n    destroying: _destroying.default\n  });\n  var _default = states;\n  _exports.default = _default;\n});","define(\"@ember/-internals/views/lib/views/states/default\", [\"exports\", \"@ember/error\"], function (_exports, _error) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n  var _default = {\n    // appendChild is only legal while rendering the buffer.\n    appendChild() {\n      throw new _error.default(\"You can't use appendChild outside of the rendering process\");\n    },\n\n    // Handle events from `Ember.EventDispatcher`\n    handleEvent() {\n      return true; // continue event propagation\n    },\n\n    rerender() {},\n\n    destroy() {}\n\n  };\n\n  var _default2 = Object.freeze(_default);\n\n  _exports.default = _default2;\n});","define(\"@ember/-internals/views/lib/views/states/destroying\", [\"exports\", \"@ember/polyfills\", \"@ember/error\", \"@ember/-internals/views/lib/views/states/default\"], function (_exports, _polyfills, _error, _default3) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n  var destroying = (0, _polyfills.assign)({}, _default3.default, {\n    appendChild() {\n      throw new _error.default(\"You can't call appendChild on a view being destroyed\");\n    },\n\n    rerender() {\n      throw new _error.default(\"You can't call rerender on a view being destroyed\");\n    }\n\n  });\n\n  var _default2 = Object.freeze(destroying);\n\n  _exports.default = _default2;\n});","define(\"@ember/-internals/views/lib/views/states/has_element\", [\"exports\", \"@ember/polyfills\", \"@ember/-internals/views/lib/views/states/default\", \"@ember/runloop\", \"@ember/instrumentation\"], function (_exports, _polyfills, _default3, _runloop, _instrumentation) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n  var hasElement = (0, _polyfills.assign)({}, _default3.default, {\n    rerender(view) {\n      view.renderer.rerender(view);\n    },\n\n    destroy(view) {\n      view.renderer.remove(view);\n    },\n\n    // Handle events from `Ember.EventDispatcher`\n    handleEvent(view, eventName, event) {\n      if (view.has(eventName)) {\n        // Handler should be able to re-dispatch events, so we don't\n        // preventDefault or stopPropagation.\n        return (0, _instrumentation.flaggedInstrument)(`interaction.${eventName}`, {\n          event,\n          view\n        }, () => {\n          return (0, _runloop.join)(view, view.trigger, eventName, event);\n        });\n      } else {\n        return true; // continue event propagation\n      }\n    }\n\n  });\n\n  var _default2 = Object.freeze(hasElement);\n\n  _exports.default = _default2;\n});","define(\"@ember/-internals/views/lib/views/states/in_dom\", [\"exports\", \"@ember/-internals/utils\", \"@ember/polyfills\", \"@ember/error\", \"@ember/-internals/views/lib/views/states/has_element\"], function (_exports, _utils, _polyfills, _error, _has_element) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n  var inDOM = (0, _polyfills.assign)({}, _has_element.default, {\n    enter(view) {\n      // Register the view for event handling. This hash is used by\n      // Ember.EventDispatcher to dispatch incoming events.\n      view.renderer.register(view);\n\n      if (true\n      /* DEBUG */\n      ) {\n        var elementId = view.elementId;\n        (0, _utils.teardownMandatorySetter)(view, 'elementId');\n        Object.defineProperty(view, 'elementId', {\n          configurable: true,\n          enumerable: true,\n\n          get() {\n            return elementId;\n          },\n\n          set(value) {\n            if (value !== elementId) {\n              throw new _error.default(\"Changing a view's elementId after creation is not allowed\");\n            }\n          }\n\n        });\n      }\n    }\n\n  });\n\n  var _default = Object.freeze(inDOM);\n\n  _exports.default = _default;\n});","define(\"@ember/-internals/views/lib/views/states/pre_render\", [\"exports\", \"@ember/-internals/views/lib/views/states/default\", \"@ember/polyfills\"], function (_exports, _default3, _polyfills) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n  var preRender = (0, _polyfills.assign)({}, _default3.default);\n\n  var _default2 = Object.freeze(preRender);\n\n  _exports.default = _default2;\n});","define(\"@ember/application/globals-resolver\", [\"exports\", \"@ember/-internals/utils\", \"@ember/-internals/metal\", \"@ember/debug\", \"@ember/string\", \"@ember/-internals/runtime\", \"@ember/-internals/glimmer\", \"@ember/deprecated-features\"], function (_exports, _utils, _metal, _debug, _string, _runtime, _glimmer, _deprecatedFeatures) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n  @module @ember/application\n  */\n\n  /**\n    The DefaultResolver defines the default lookup rules to resolve\n    container lookups before consulting the container for registered\n    items:\n  \n    * templates are looked up on `Ember.TEMPLATES`\n    * other names are looked up on the application after converting\n      the name. For example, `controller:post` looks up\n      `App.PostController` by default.\n    * there are some nuances (see examples below)\n  \n    ### How Resolving Works\n  \n    The container calls this object's `resolve` method with the\n    `fullName` argument.\n  \n    It first parses the fullName into an object using `parseName`.\n  \n    Then it checks for the presence of a type-specific instance\n    method of the form `resolve[Type]` and calls it if it exists.\n    For example if it was resolving 'template:post', it would call\n    the `resolveTemplate` method.\n  \n    Its last resort is to call the `resolveOther` method.\n  \n    The methods of this object are designed to be easy to override\n    in a subclass. For example, you could enhance how a template\n    is resolved like so:\n  \n    ```app/app.js\n    import Application from '@ember/application';\n    import GlobalsResolver from '@ember/application/globals-resolver';\n  \n    App = Application.create({\n      Resolver: GlobalsResolver.extend({\n        resolveTemplate(parsedName) {\n          let resolvedTemplate = this._super(parsedName);\n          if (resolvedTemplate) { return resolvedTemplate; }\n  \n          return Ember.TEMPLATES['not_found'];\n        }\n      })\n    });\n    ```\n  \n    Some examples of how names are resolved:\n  \n    ```text\n    'template:post'           //=> Ember.TEMPLATES['post']\n    'template:posts/byline'   //=> Ember.TEMPLATES['posts/byline']\n    'template:posts.byline'   //=> Ember.TEMPLATES['posts/byline']\n    'template:blogPost'       //=> Ember.TEMPLATES['blog-post']\n    'controller:post'         //=> App.PostController\n    'controller:posts.index'  //=> App.PostsIndexController\n    'controller:blog/post'    //=> Blog.PostController\n    'controller:basic'        //=> Controller\n    'route:post'              //=> App.PostRoute\n    'route:posts.index'       //=> App.PostsIndexRoute\n    'route:blog/post'         //=> Blog.PostRoute\n    'route:basic'             //=> Route\n    'foo:post'                //=> App.PostFoo\n    'model:post'              //=> App.Post\n    ```\n  \n    @class GlobalsResolver\n    @extends EmberObject\n    @public\n    @deprecated\n  */\n  var DefaultResolver;\n\n  if (_deprecatedFeatures.GLOBALS_RESOLVER) {\n    DefaultResolver = class DefaultResolver extends _runtime.Object {\n      static create(props) {\n        // DO NOT REMOVE even though this doesn't do anything\n        // This is required for a FireFox 60+ JIT bug with our tests.\n        // without it, create(props) in our tests would lose props on a deopt.\n        return super.create(props);\n      }\n      /**\n        This will be set to the Application instance when it is\n        created.\n         @property namespace\n        @public\n        @deprecated\n      */\n\n\n      init() {\n        (true && !(false) && (0, _debug.deprecate)('Using the globals resolver is deprecated. Use the ember-resolver package instead. See https://deprecations.emberjs.com/v3.x#toc_ember-deprecate-globals-resolver', false, {\n          until: '4.0.0',\n          id: 'globals-resolver',\n          url: 'https://deprecations.emberjs.com/v3.x#toc_ember-deprecate-globals-resolver'\n        }));\n        this._parseNameCache = (0, _utils.dictionary)(null);\n      }\n\n      normalize(fullName) {\n        var [type, name] = fullName.split(':');\n        (true && !(fullName.split(':').length === 2) && (0, _debug.assert)('Tried to normalize a container name without a colon (:) in it. ' + 'You probably tried to lookup a name that did not contain a type, ' + 'a colon, and a name. A proper lookup name would be `view:post`.', fullName.split(':').length === 2));\n\n        if (type !== 'template') {\n          var result = name.replace(/(\\.|_|-)./g, m => m.charAt(1).toUpperCase());\n          return `${type}:${result}`;\n        } else {\n          return fullName;\n        }\n      }\n      /**\n        This method is called via the container's resolver method.\n        It parses the provided `fullName` and then looks up and\n        returns the appropriate template or class.\n         @method resolve\n        @param {String} fullName the lookup string\n        @return {Object} the resolved factory\n        @public\n      */\n\n\n      resolve(fullName) {\n        var parsedName = this.parseName(fullName);\n        var resolveMethodName = parsedName.resolveMethodName;\n        var resolved;\n\n        if (this[resolveMethodName]) {\n          resolved = this[resolveMethodName](parsedName);\n        }\n\n        resolved = resolved || this.resolveOther(parsedName);\n\n        if (true\n        /* DEBUG */\n        ) {\n          if (parsedName.root && parsedName.root.LOG_RESOLVER) {\n            this._logLookup(resolved, parsedName);\n          }\n\n          if (resolved) {\n            var VALIDATED_TYPES = {\n              route: ['isRouteFactory', 'Ember.Route'],\n              component: ['isComponentFactory', 'Ember.Component'],\n              view: ['isViewFactory', 'Ember.View'],\n              service: ['isServiceFactory', 'Ember.Service']\n            };\n            var validationAttributes = VALIDATED_TYPES[parsedName.type];\n\n            if (validationAttributes) {\n              var [factoryFlag, expectedType] = validationAttributes;\n              (true && !(Boolean(resolved[factoryFlag])) && (0, _debug.assert)(`Expected ${parsedName.fullName} to resolve to an ${expectedType} but ` + `instead it was ${resolved}.`, Boolean(resolved[factoryFlag])));\n            }\n          }\n        }\n\n        return resolved;\n      }\n      /**\n        Convert the string name of the form 'type:name' to\n        a Javascript object with the parsed aspects of the name\n        broken out.\n         @param {String} fullName the lookup string\n        @method parseName\n        @protected\n      */\n\n\n      parseName(fullName) {\n        return this._parseNameCache[fullName] || (this._parseNameCache[fullName] = this._parseName(fullName));\n      }\n\n      _parseName(fullName) {\n        var [type, fullNameWithoutType] = fullName.split(':');\n        var name = fullNameWithoutType;\n        var namespace = (0, _metal.get)(this, 'namespace');\n        var root = namespace;\n        var lastSlashIndex = name.lastIndexOf('/');\n        var dirname = lastSlashIndex !== -1 ? name.slice(0, lastSlashIndex) : null;\n\n        if (type !== 'template' && lastSlashIndex !== -1) {\n          var parts = name.split('/');\n          name = parts[parts.length - 1];\n          var namespaceName = (0, _string.capitalize)(parts.slice(0, -1).join('.'));\n          root = (0, _metal.findNamespace)(namespaceName);\n          (true && !(root) && (0, _debug.assert)(`You are looking for a ${name} ${type} in the ${namespaceName} namespace, but the namespace could not be found`, root));\n        }\n\n        var resolveMethodName = fullNameWithoutType === 'main' ? 'Main' : (0, _string.classify)(type);\n\n        if (!(name && type)) {\n          throw new TypeError(`Invalid fullName: \\`${fullName}\\`, must be of the form \\`type:name\\` `);\n        }\n\n        return {\n          fullName,\n          type,\n          fullNameWithoutType,\n          dirname,\n          name,\n          root,\n          resolveMethodName: `resolve${resolveMethodName}`\n        };\n      }\n      /**\n        Returns a human-readable description for a fullName. Used by the\n        Application namespace in assertions to describe the\n        precise name of the class that Ember is looking for, rather than\n        container keys.\n         @param {String} fullName the lookup string\n        @method lookupDescription\n        @protected\n      */\n\n\n      lookupDescription(fullName) {\n        var parsedName = this.parseName(fullName);\n        var description;\n\n        if (parsedName.type === 'template') {\n          return `template at ${parsedName.fullNameWithoutType.replace(/\\./g, '/')}`;\n        }\n\n        description = `${parsedName.root}.${(0, _string.classify)(parsedName.name).replace(/\\./g, '')}`;\n\n        if (parsedName.type !== 'model') {\n          description += (0, _string.classify)(parsedName.type);\n        }\n\n        return description;\n      }\n\n      makeToString(factory) {\n        return factory.toString();\n      }\n      /**\n        Given a parseName object (output from `parseName`), apply\n        the conventions expected by `Router`\n         @param {Object} parsedName a parseName object with the parsed\n          fullName lookup string\n        @method useRouterNaming\n        @protected\n      */\n\n\n      useRouterNaming(parsedName) {\n        if (parsedName.name === 'basic') {\n          parsedName.name = '';\n        } else {\n          parsedName.name = parsedName.name.replace(/\\./g, '_');\n        }\n      }\n      /**\n        Look up the template in Ember.TEMPLATES\n         @param {Object} parsedName a parseName object with the parsed\n          fullName lookup string\n        @method resolveTemplate\n        @protected\n      */\n\n\n      resolveTemplate(parsedName) {\n        var templateName = parsedName.fullNameWithoutType.replace(/\\./g, '/');\n        return (0, _glimmer.getTemplate)(templateName) || (0, _glimmer.getTemplate)((0, _string.decamelize)(templateName));\n      }\n      /**\n        Lookup the view using `resolveOther`\n         @param {Object} parsedName a parseName object with the parsed\n          fullName lookup string\n        @method resolveView\n        @protected\n      */\n\n\n      resolveView(parsedName) {\n        this.useRouterNaming(parsedName);\n        return this.resolveOther(parsedName);\n      }\n      /**\n        Lookup the controller using `resolveOther`\n         @param {Object} parsedName a parseName object with the parsed\n          fullName lookup string\n        @method resolveController\n        @protected\n      */\n\n\n      resolveController(parsedName) {\n        this.useRouterNaming(parsedName);\n        return this.resolveOther(parsedName);\n      }\n      /**\n        Lookup the route using `resolveOther`\n         @param {Object} parsedName a parseName object with the parsed\n          fullName lookup string\n        @method resolveRoute\n        @protected\n      */\n\n\n      resolveRoute(parsedName) {\n        this.useRouterNaming(parsedName);\n        return this.resolveOther(parsedName);\n      }\n      /**\n        Lookup the model on the Application namespace\n         @param {Object} parsedName a parseName object with the parsed\n          fullName lookup string\n        @method resolveModel\n        @protected\n      */\n\n\n      resolveModel(parsedName) {\n        var className = (0, _string.classify)(parsedName.name);\n        var factory = (0, _metal.get)(parsedName.root, className);\n        return factory;\n      }\n      /**\n        Look up the specified object (from parsedName) on the appropriate\n        namespace (usually on the Application)\n         @param {Object} parsedName a parseName object with the parsed\n          fullName lookup string\n        @method resolveHelper\n        @protected\n      */\n\n\n      resolveHelper(parsedName) {\n        return this.resolveOther(parsedName);\n      }\n      /**\n        Look up the specified object (from parsedName) on the appropriate\n        namespace (usually on the Application)\n         @param {Object} parsedName a parseName object with the parsed\n          fullName lookup string\n        @method resolveOther\n        @protected\n      */\n\n\n      resolveOther(parsedName) {\n        var className = (0, _string.classify)(parsedName.name) + (0, _string.classify)(parsedName.type);\n        var factory = (0, _metal.get)(parsedName.root, className);\n        return factory;\n      }\n\n      resolveMain(parsedName) {\n        var className = (0, _string.classify)(parsedName.type);\n        return (0, _metal.get)(parsedName.root, className);\n      }\n      /**\n        Used to iterate all items of a given type.\n         @method knownForType\n        @param {String} type the type to search for\n        @private\n      */\n\n\n      knownForType(type) {\n        var namespace = (0, _metal.get)(this, 'namespace');\n        var suffix = (0, _string.classify)(type);\n        var typeRegexp = new RegExp(`${suffix}$`);\n        var known = (0, _utils.dictionary)(null);\n        var knownKeys = Object.keys(namespace);\n\n        for (var index = 0; index < knownKeys.length; index++) {\n          var name = knownKeys[index];\n\n          if (typeRegexp.test(name)) {\n            var containerName = this.translateToContainerFullname(type, name);\n            known[containerName] = true;\n          }\n        }\n\n        return known;\n      }\n      /**\n        Converts provided name from the backing namespace into a container lookup name.\n         Examples:\n         * App.FooBarHelper -> helper:foo-bar\n        * App.THelper -> helper:t\n         @method translateToContainerFullname\n        @param {String} type\n        @param {String} name\n        @private\n      */\n\n\n      translateToContainerFullname(type, name) {\n        var suffix = (0, _string.classify)(type);\n        var namePrefix = name.slice(0, suffix.length * -1);\n        var dasherizedName = (0, _string.dasherize)(namePrefix);\n        return `${type}:${dasherizedName}`;\n      }\n\n    };\n\n    if (true\n    /* DEBUG */\n    ) {\n      /**\n          @method _logLookup\n          @param {Boolean} found\n          @param {Object} parsedName\n          @private\n        */\n      DefaultResolver.prototype._logLookup = function (found, parsedName) {\n        var symbol = found ? '[✓]' : '[ ]';\n        var padding;\n\n        if (parsedName.fullName.length > 60) {\n          padding = '.';\n        } else {\n          padding = new Array(60 - parsedName.fullName.length).join('.');\n        }\n\n        (0, _debug.info)(symbol, parsedName.fullName, padding, this.lookupDescription(parsedName.fullName));\n      };\n    }\n  }\n\n  var _default = DefaultResolver;\n  _exports.default = _default;\n});","define(\"@ember/application/index\", [\"exports\", \"@ember/-internals/owner\", \"@ember/application/lib/lazy_load\", \"@ember/application/lib/application\"], function (_exports, _owner, _lazy_load, _application) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"getOwner\", {\n    enumerable: true,\n    get: function () {\n      return _owner.getOwner;\n    }\n  });\n  Object.defineProperty(_exports, \"setOwner\", {\n    enumerable: true,\n    get: function () {\n      return _owner.setOwner;\n    }\n  });\n  Object.defineProperty(_exports, \"onLoad\", {\n    enumerable: true,\n    get: function () {\n      return _lazy_load.onLoad;\n    }\n  });\n  Object.defineProperty(_exports, \"runLoadHooks\", {\n    enumerable: true,\n    get: function () {\n      return _lazy_load.runLoadHooks;\n    }\n  });\n  Object.defineProperty(_exports, \"_loaded\", {\n    enumerable: true,\n    get: function () {\n      return _lazy_load._loaded;\n    }\n  });\n  Object.defineProperty(_exports, \"default\", {\n    enumerable: true,\n    get: function () {\n      return _application.default;\n    }\n  });\n});","define(\"@ember/application/instance\", [\"exports\", \"@ember/polyfills\", \"@ember/-internals/metal\", \"@ember/-internals/browser-environment\", \"@ember/-internals/views\", \"@ember/engine/instance\", \"@ember/-internals/glimmer\"], function (_exports, _polyfills, _metal, environment, _views, _instance, _glimmer) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n  @module @ember/application\n  */\n\n  /**\n    The `ApplicationInstance` encapsulates all of the stateful aspects of a\n    running `Application`.\n  \n    At a high-level, we break application boot into two distinct phases:\n  \n    * Definition time, where all of the classes, templates, and other\n      dependencies are loaded (typically in the browser).\n    * Run time, where we begin executing the application once everything\n      has loaded.\n  \n    Definition time can be expensive and only needs to happen once since it is\n    an idempotent operation. For example, between test runs and FastBoot\n    requests, the application stays the same. It is only the state that we want\n    to reset.\n  \n    That state is what the `ApplicationInstance` manages: it is responsible for\n    creating the container that contains all application state, and disposing of\n    it once the particular test run or FastBoot request has finished.\n  \n    @public\n    @class ApplicationInstance\n    @extends EngineInstance\n  */\n  var ApplicationInstance = _instance.default.extend({\n    /**\n      The `Application` for which this is an instance.\n       @property {Application} application\n      @private\n    */\n    application: null,\n\n    /**\n      The DOM events for which the event dispatcher should listen.\n       By default, the application's `Ember.EventDispatcher` listens\n      for a set of standard DOM events, such as `mousedown` and\n      `keyup`, and delegates them to your application's `Ember.View`\n      instances.\n       @private\n      @property {Object} customEvents\n    */\n    customEvents: null,\n\n    /**\n      The root DOM element of the Application as an element or a\n      [jQuery-compatible selector\n      string](http://api.jquery.com/category/selectors/).\n       @private\n      @property {String|DOMElement} rootElement\n    */\n    rootElement: null,\n\n    init() {\n      this._super(...arguments);\n\n      this.application._watchInstance(this); // Register this instance in the per-instance registry.\n      //\n      // Why do we need to register the instance in the first place?\n      // Because we need a good way for the root route (a.k.a ApplicationRoute)\n      // to notify us when it has created the root-most view. That view is then\n      // appended to the rootElement, in the case of apps, to the fixture harness\n      // in tests, or rendered to a string in the case of FastBoot.\n\n\n      this.register('-application-instance:main', this, {\n        instantiate: false\n      });\n    },\n\n    /**\n      Overrides the base `EngineInstance._bootSync` method with concerns relevant\n      to booting application (instead of engine) instances.\n       This method should only contain synchronous boot concerns. Asynchronous\n      boot concerns should eventually be moved to the `boot` method, which\n      returns a promise.\n       Until all boot code has been made asynchronous, we need to continue to\n      expose this method for use *internally* in places where we need to boot an\n      instance synchronously.\n       @private\n    */\n    _bootSync(options) {\n      if (this._booted) {\n        return this;\n      }\n\n      options = new BootOptions(options);\n      this.setupRegistry(options);\n\n      if (options.rootElement) {\n        this.rootElement = options.rootElement;\n      } else {\n        this.rootElement = this.application.rootElement;\n      }\n\n      if (options.location) {\n        (0, _metal.set)(this.router, 'location', options.location);\n      }\n\n      this.application.runInstanceInitializers(this);\n\n      if (options.isInteractive) {\n        this.setupEventDispatcher();\n      }\n\n      this._booted = true;\n      return this;\n    },\n\n    setupRegistry(options) {\n      this.constructor.setupRegistry(this.__registry__, options);\n    },\n\n    router: (0, _metal.computed)(function () {\n      return this.lookup('router:main');\n    }).readOnly(),\n\n    /**\n      This hook is called by the root-most Route (a.k.a. the ApplicationRoute)\n      when it has finished creating the root View. By default, we simply take the\n      view and append it to the `rootElement` specified on the Application.\n       In cases like FastBoot and testing, we can override this hook and implement\n      custom behavior, such as serializing to a string and sending over an HTTP\n      socket rather than appending to DOM.\n       @param view {Ember.View} the root-most view\n      @deprecated\n      @private\n    */\n    didCreateRootView(view) {\n      view.appendTo(this.rootElement);\n    },\n\n    /**\n      Tells the router to start routing. The router will ask the location for the\n      current URL of the page to determine the initial URL to start routing to.\n      To start the app at a specific URL, call `handleURL` instead.\n       @private\n    */\n    startRouting() {\n      this.router.startRouting();\n      this._didSetupRouter = true;\n    },\n\n    /**\n      Sets up the router, initializing the child router and configuring the\n      location before routing begins.\n       Because setup should only occur once, multiple calls to `setupRouter`\n      beyond the first call have no effect.\n      \n      This is commonly used in order to confirm things that rely on the router\n      are functioning properly from tests that are primarily rendering related.\n      \n      For example, from within [ember-qunit](https://github.com/emberjs/ember-qunit)'s\n      `setupRenderingTest` calling `this.owner.setupRouter()` would allow that\n      rendering test to confirm that any `<LinkTo></LinkTo>`'s that are rendered\n      have the correct URL.\n      \n      @public\n    */\n    setupRouter() {\n      if (this._didSetupRouter) {\n        return;\n      }\n\n      this._didSetupRouter = true;\n      this.router.setupRouter();\n    },\n\n    /**\n      Directs the router to route to a particular URL. This is useful in tests,\n      for example, to tell the app to start at a particular URL.\n       @param url {String} the URL the router should route to\n      @private\n    */\n    handleURL(url) {\n      this.setupRouter();\n      return this.router.handleURL(url);\n    },\n\n    /**\n      @private\n    */\n    setupEventDispatcher() {\n      var dispatcher = this.lookup('event_dispatcher:main');\n      var applicationCustomEvents = (0, _metal.get)(this.application, 'customEvents');\n      var instanceCustomEvents = (0, _metal.get)(this, 'customEvents');\n      var customEvents = (0, _polyfills.assign)({}, applicationCustomEvents, instanceCustomEvents);\n      dispatcher.setup(customEvents, this.rootElement);\n      return dispatcher;\n    },\n\n    /**\n      Returns the current URL of the app instance. This is useful when your\n      app does not update the browsers URL bar (i.e. it uses the `'none'`\n      location adapter).\n       @public\n      @return {String} the current URL\n    */\n    getURL() {\n      return this.router.url;\n    },\n\n    // `instance.visit(url)` should eventually replace `instance.handleURL()`;\n    // the test helpers can probably be switched to use this implementation too\n\n    /**\n      Navigate the instance to a particular URL. This is useful in tests, for\n      example, or to tell the app to start at a particular URL. This method\n      returns a promise that resolves with the app instance when the transition\n      is complete, or rejects if the transion was aborted due to an error.\n       @public\n      @param url {String} the destination URL\n      @return {Promise<ApplicationInstance>}\n    */\n    visit(url) {\n      this.setupRouter();\n\n      var bootOptions = this.__container__.lookup('-environment:main');\n\n      var router = this.router;\n\n      var handleTransitionResolve = () => {\n        if (!bootOptions.options.shouldRender) {\n          // No rendering is needed, and routing has completed, simply return.\n          return this;\n        } else {\n          // Ensure that the visit promise resolves when all rendering has completed\n          return (0, _glimmer.renderSettled)().then(() => this);\n        }\n      };\n\n      var handleTransitionReject = error => {\n        if (error.error) {\n          throw error.error;\n        } else if (error.name === 'TransitionAborted' && router._routerMicrolib.activeTransition) {\n          return router._routerMicrolib.activeTransition.then(handleTransitionResolve, handleTransitionReject);\n        } else if (error.name === 'TransitionAborted') {\n          throw new Error(error.message);\n        } else {\n          throw error;\n        }\n      };\n\n      var location = (0, _metal.get)(router, 'location'); // Keeps the location adapter's internal URL in-sync\n\n      location.setURL(url); // getURL returns the set url with the rootURL stripped off\n\n      return router.handleURL(location.getURL()).then(handleTransitionResolve, handleTransitionReject);\n    },\n\n    willDestroy() {\n      this._super(...arguments);\n\n      this.application._unwatchInstance(this);\n    }\n\n  });\n\n  ApplicationInstance.reopenClass({\n    /**\n     @private\n     @method setupRegistry\n     @param {Registry} registry\n     @param {BootOptions} options\n    */\n    setupRegistry(registry, options = {}) {\n      if (!options.toEnvironment) {\n        options = new BootOptions(options);\n      }\n\n      registry.register('-environment:main', options.toEnvironment(), {\n        instantiate: false\n      });\n      registry.register('service:-document', options.document, {\n        instantiate: false\n      });\n\n      this._super(registry, options);\n    }\n\n  });\n  /**\n    A list of boot-time configuration options for customizing the behavior of\n    an `ApplicationInstance`.\n  \n    This is an interface class that exists purely to document the available\n    options; you do not need to construct it manually. Simply pass a regular\n    JavaScript object containing the desired options into methods that require\n    one of these options object:\n  \n    ```javascript\n    MyApp.visit(\"/\", { location: \"none\", rootElement: \"#container\" });\n    ```\n  \n    Not all combinations of the supported options are valid. See the documentation\n    on `Application#visit` for the supported configurations.\n  \n    Internal, experimental or otherwise unstable flags are marked as private.\n  \n    @class BootOptions\n    @namespace ApplicationInstance\n    @public\n  */\n\n  class BootOptions {\n    constructor(options = {}) {\n      /**\n        Provide a specific instance of jQuery. This is useful in conjunction with\n        the `document` option, as it allows you to use a copy of `jQuery` that is\n        appropriately bound to the foreign `document` (e.g. a jsdom).\n         This is highly experimental and support very incomplete at the moment.\n         @property jQuery\n        @type Object\n        @default auto-detected\n        @private\n      */\n      this.jQuery = _views.jQuery; // This default is overridable below\n\n      /**\n        Interactive mode: whether we need to set up event delegation and invoke\n        lifecycle callbacks on Components.\n         @property isInteractive\n        @type boolean\n        @default auto-detected\n        @private\n      */\n\n      this.isInteractive = environment.hasDOM; // This default is overridable below\n\n      /**\n        @property _renderMode\n        @type string\n        @default false\n        @private\n      */\n\n      this._renderMode = options._renderMode;\n      /**\n        Run in a full browser environment.\n         When this flag is set to `false`, it will disable most browser-specific\n        and interactive features. Specifically:\n         * It does not use `jQuery` to append the root view; the `rootElement`\n          (either specified as a subsequent option or on the application itself)\n          must already be an `Element` in the given `document` (as opposed to a\n          string selector).\n         * It does not set up an `EventDispatcher`.\n         * It does not run any `Component` lifecycle hooks (such as `didInsertElement`).\n         * It sets the `location` option to `\"none\"`. (If you would like to use\n          the location adapter specified in the app's router instead, you can also\n          specify `{ location: null }` to specifically opt-out.)\n         @property isBrowser\n        @type boolean\n        @default auto-detected\n        @public\n      */\n\n      if (options.isBrowser !== undefined) {\n        this.isBrowser = Boolean(options.isBrowser);\n      } else {\n        this.isBrowser = environment.hasDOM;\n      }\n\n      if (!this.isBrowser) {\n        this.jQuery = null;\n        this.isInteractive = false;\n        this.location = 'none';\n      }\n      /**\n        Disable rendering completely.\n         When this flag is set to `false`, it will disable the entire rendering\n        pipeline. Essentially, this puts the app into \"routing-only\" mode. No\n        templates will be rendered, and no Components will be created.\n         @property shouldRender\n        @type boolean\n        @default true\n        @public\n      */\n\n\n      if (options.shouldRender !== undefined) {\n        this.shouldRender = Boolean(options.shouldRender);\n      } else {\n        this.shouldRender = true;\n      }\n\n      if (!this.shouldRender) {\n        this.jQuery = null;\n        this.isInteractive = false;\n      }\n      /**\n        If present, render into the given `Document` object instead of the\n        global `window.document` object.\n         In practice, this is only useful in non-browser environment or in\n        non-interactive mode, because Ember's `jQuery` dependency is\n        implicitly bound to the current document, causing event delegation\n        to not work properly when the app is rendered into a foreign\n        document object (such as an iframe's `contentDocument`).\n         In non-browser mode, this could be a \"`Document`-like\" object as\n        Ember only interact with a small subset of the DOM API in non-\n        interactive mode. While the exact requirements have not yet been\n        formalized, the `SimpleDOM` library's implementation is known to\n        work.\n         @property document\n        @type Document\n        @default the global `document` object\n        @public\n      */\n\n\n      if (options.document) {\n        this.document = options.document;\n      } else {\n        this.document = typeof document !== 'undefined' ? document : null;\n      }\n      /**\n        If present, overrides the application's `rootElement` property on\n        the instance. This is useful for testing environment, where you\n        might want to append the root view to a fixture area.\n         In non-browser mode, because Ember does not have access to jQuery,\n        this options must be specified as a DOM `Element` object instead of\n        a selector string.\n         See the documentation on `Application`'s `rootElement` for\n        details.\n         @property rootElement\n        @type String|Element\n        @default null\n        @public\n       */\n\n\n      if (options.rootElement) {\n        this.rootElement = options.rootElement;\n      } // Set these options last to give the user a chance to override the\n      // defaults from the \"combo\" options like `isBrowser` (although in\n      // practice, the resulting combination is probably invalid)\n\n      /**\n        If present, overrides the router's `location` property with this\n        value. This is useful for environments where trying to modify the\n        URL would be inappropriate.\n         @property location\n        @type string\n        @default null\n        @public\n      */\n\n\n      if (options.location !== undefined) {\n        this.location = options.location;\n      }\n\n      if (options.jQuery !== undefined) {\n        this.jQuery = options.jQuery;\n      }\n\n      if (options.isInteractive !== undefined) {\n        this.isInteractive = Boolean(options.isInteractive);\n      }\n    }\n\n    toEnvironment() {\n      // Do we really want to assign all of this!?\n      var env = (0, _polyfills.assign)({}, environment); // For compatibility with existing code\n\n      env.hasDOM = this.isBrowser;\n      env.isInteractive = this.isInteractive;\n      env._renderMode = this._renderMode;\n      env.options = this;\n      return env;\n    }\n\n  }\n\n  var _default = ApplicationInstance;\n  _exports.default = _default;\n});","define(\"@ember/application/lib/application\", [\"exports\", \"@ember/-internals/utils\", \"@ember/-internals/environment\", \"@ember/-internals/browser-environment\", \"@ember/debug\", \"@ember/runloop\", \"@ember/-internals/metal\", \"@ember/application/lib/lazy_load\", \"@ember/-internals/runtime\", \"@ember/-internals/views\", \"@ember/-internals/routing\", \"@ember/application/instance\", \"@ember/engine\", \"@ember/-internals/container\", \"@ember/-internals/glimmer\", \"@ember/deprecated-features\"], function (_exports, _utils, _environment, _browserEnvironment, _debug, _runloop, _metal, _lazy_load, _runtime, _views, _routing, _instance, _engine, _container, _glimmer, _deprecatedFeatures) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n  @module @ember/application\n  */\n  var librariesRegistered = false;\n  /**\n    An instance of `Application` is the starting point for every Ember\n    application. It instantiates, initializes and coordinates the\n    objects that make up your app.\n  \n    Each Ember app has one and only one `Application` object. Although\n    Ember CLI creates this object implicitly, the `Application` class\n    is defined in the `app/app.js`. You can define a `ready` method on the\n    `Application` class, which will be run by Ember when the application is\n    initialized.\n  \n    ```app/app.js\n    const App = Application.extend({\n      ready() {\n        // your code here\n      }\n    })\n    ```\n  \n    Because `Application` ultimately inherits from `Ember.Namespace`, any classes\n    you create will have useful string representations when calling `toString()`.\n    See the `Ember.Namespace` documentation for more information.\n  \n    While you can think of your `Application` as a container that holds the\n    other classes in your application, there are several other responsibilities\n    going on under-the-hood that you may want to understand. It is also important\n    to understand that an `Application` is different from an `ApplicationInstance`.\n    Refer to the Guides to understand the difference between these.\n  \n    ### Event Delegation\n  \n    Ember uses a technique called _event delegation_. This allows the framework\n    to set up a global, shared event listener instead of requiring each view to\n    do it manually. For example, instead of each view registering its own\n    `mousedown` listener on its associated element, Ember sets up a `mousedown`\n    listener on the `body`.\n  \n    If a `mousedown` event occurs, Ember will look at the target of the event and\n    start walking up the DOM node tree, finding corresponding views and invoking\n    their `mouseDown` method as it goes.\n  \n    `Application` has a number of default events that it listens for, as\n    well as a mapping from lowercase events to camel-cased view method names. For\n    example, the `keypress` event causes the `keyPress` method on the view to be\n    called, the `dblclick` event causes `doubleClick` to be called, and so on.\n  \n    If there is a bubbling browser event that Ember does not listen for by\n    default, you can specify custom events and their corresponding view method\n    names by setting the application's `customEvents` property:\n  \n    ```app/app.js\n    import Application from '@ember/application';\n  \n    let App = Application.extend({\n      customEvents: {\n        // add support for the paste event\n        paste: 'paste'\n      }\n    });\n    ```\n  \n    To prevent Ember from setting up a listener for a default event,\n    specify the event name with a `null` value in the `customEvents`\n    property:\n  \n    ```app/app.js\n    import Application from '@ember/application';\n  \n    let App = Application.extend({\n      customEvents: {\n        // prevent listeners for mouseenter/mouseleave events\n        mouseenter: null,\n        mouseleave: null\n      }\n    });\n    ```\n  \n    By default, the application sets up these event listeners on the document\n    body. However, in cases where you are embedding an Ember application inside\n    an existing page, you may want it to set up the listeners on an element\n    inside the body.\n  \n    For example, if only events inside a DOM element with the ID of `ember-app`\n    should be delegated, set your application's `rootElement` property:\n  \n    ```app/app.js\n    import Application from '@ember/application';\n  \n    let App = Application.extend({\n      rootElement: '#ember-app'\n    });\n    ```\n  \n    The `rootElement` can be either a DOM element or a jQuery-compatible selector\n    string. Note that *views appended to the DOM outside the root element will\n    not receive events.* If you specify a custom root element, make sure you only\n    append views inside it!\n  \n    To learn more about the events Ember components use, see\n  \n    [components/handling-events](https://guides.emberjs.com/release/components/handling-events/#toc_event-names).\n  \n    ### Initializers\n  \n    To add behavior to the Application's boot process, you can define initializers in\n    the `app/initializers` directory, or with `ember generate initializer` using Ember CLI.\n    These files should export a named `initialize` function which will receive the created `application`\n    object as its first argument.\n  \n    ```javascript\n    export function initialize(application) {\n      // application.inject('route', 'foo', 'service:foo');\n    }\n    ```\n  \n    Application initializers can be used for a variety of reasons including:\n  \n    - setting up external libraries\n    - injecting dependencies\n    - setting up event listeners in embedded apps\n    - deferring the boot process using the `deferReadiness` and `advanceReadiness` APIs.\n  \n    ### Routing\n  \n    In addition to creating your application's router, `Application` is\n    also responsible for telling the router when to start routing. Transitions\n    between routes can be logged with the `LOG_TRANSITIONS` flag, and more\n    detailed intra-transition logging can be logged with\n    the `LOG_TRANSITIONS_INTERNAL` flag:\n  \n    ```javascript\n    import Application from '@ember/application';\n  \n    let App = Application.create({\n      LOG_TRANSITIONS: true, // basic logging of successful transitions\n      LOG_TRANSITIONS_INTERNAL: true // detailed logging of all routing steps\n    });\n    ```\n  \n    By default, the router will begin trying to translate the current URL into\n    application state once the browser emits the `DOMContentReady` event. If you\n    need to defer routing, you can call the application's `deferReadiness()`\n    method. Once routing can begin, call the `advanceReadiness()` method.\n  \n    If there is any setup required before routing begins, you can implement a\n    `ready()` method on your app that will be invoked immediately before routing\n    begins.\n  \n    @class Application\n    @extends Engine\n    @uses RegistryProxyMixin\n    @public\n  */\n\n  var Application = _engine.default.extend({\n    /**\n      The root DOM element of the Application. This can be specified as an\n      element or a\n      [jQuery-compatible selector string](http://api.jquery.com/category/selectors/).\n       This is the element that will be passed to the Application's,\n      `eventDispatcher`, which sets up the listeners for event delegation. Every\n      view in your application should be a child of the element you specify here.\n       @property rootElement\n      @type DOMElement\n      @default 'body'\n      @public\n    */\n    rootElement: 'body',\n\n    /**\n      The `Ember.EventDispatcher` responsible for delegating events to this\n      application's views.\n       The event dispatcher is created by the application at initialization time\n      and sets up event listeners on the DOM element described by the\n      application's `rootElement` property.\n       See the documentation for `Ember.EventDispatcher` for more information.\n       @property eventDispatcher\n      @type Ember.EventDispatcher\n      @default null\n      @public\n    */\n    eventDispatcher: null,\n\n    /**\n      The DOM events for which the event dispatcher should listen.\n       By default, the application's `Ember.EventDispatcher` listens\n      for a set of standard DOM events, such as `mousedown` and\n      `keyup`, and delegates them to your application's `Ember.View`\n      instances.\n       If you would like additional bubbling events to be delegated to your\n      views, set your `Application`'s `customEvents` property\n      to a hash containing the DOM event name as the key and the\n      corresponding view method name as the value. Setting an event to\n      a value of `null` will prevent a default event listener from being\n      added for that event.\n       To add new events to be listened to:\n       ```app/app.js\n      import Application from '@ember/application';\n       let App = Application.extend({\n        customEvents: {\n          // add support for the paste event\n          paste: 'paste'\n        }\n      });\n      ```\n       To prevent default events from being listened to:\n       ```app/app.js\n      import Application from '@ember/application';\n       let App = Application.extend({\n        customEvents: {\n          // remove support for mouseenter / mouseleave events\n          mouseenter: null,\n          mouseleave: null\n        }\n      });\n      ```\n      @property customEvents\n      @type Object\n      @default null\n      @public\n    */\n    customEvents: null,\n\n    /**\n      Whether the application should automatically start routing and render\n      templates to the `rootElement` on DOM ready. While default by true,\n      other environments such as FastBoot or a testing harness can set this\n      property to `false` and control the precise timing and behavior of the boot\n      process.\n       @property autoboot\n      @type Boolean\n      @default true\n      @private\n    */\n    autoboot: true,\n\n    /**\n      Whether the application should be configured for the legacy \"globals mode\".\n      Under this mode, the Application object serves as a global namespace for all\n      classes.\n       ```javascript\n      import Application from '@ember/application';\n      import Component from '@ember/component';\n       let App = Application.create({\n        ...\n      });\n       App.Router.reopen({\n        location: 'none'\n      });\n       App.Router.map({\n        ...\n      });\n       App.MyComponent = Component.extend({\n        ...\n      });\n      ```\n       This flag also exposes other internal APIs that assumes the existence of\n      a special \"default instance\", like `App.__container__.lookup(...)`.\n       This option is currently not configurable, its value is derived from\n      the `autoboot` flag – disabling `autoboot` also implies opting-out of\n      globals mode support, although they are ultimately orthogonal concerns.\n       Some of the global modes features are already deprecated in 1.x. The\n      existence of this flag is to untangle the globals mode code paths from\n      the autoboot code paths, so that these legacy features can be reviewed\n      for deprecation/removal separately.\n       Forcing the (autoboot=true, _globalsMode=false) here and running the tests\n      would reveal all the places where we are still relying on these legacy\n      behavior internally (mostly just tests).\n       @property _globalsMode\n      @type Boolean\n      @default true\n      @private\n    */\n    _globalsMode: true,\n\n    /**\n      An array of application instances created by `buildInstance()`. Used\n      internally to ensure that all instances get destroyed.\n       @property _applicationInstances\n      @type Array\n      @default null\n      @private\n    */\n    _applicationInstances: null,\n\n    init() {\n      // eslint-disable-line no-unused-vars\n      this._super(...arguments);\n\n      if (!this.$) {\n        this.$ = _views.jQuery;\n      }\n\n      registerLibraries();\n\n      if (true\n      /* DEBUG */\n      ) {\n        if (_environment.ENV.LOG_VERSION) {\n          // we only need to see this once per Application#init\n          _environment.ENV.LOG_VERSION = false;\n\n          _metal.libraries.logVersions();\n        }\n      } // Start off the number of deferrals at 1. This will be decremented by\n      // the Application's own `boot` method.\n\n\n      this._readinessDeferrals = 1;\n      this._booted = false;\n      this._applicationInstances = new Set();\n      this.autoboot = this._globalsMode = Boolean(this.autoboot);\n\n      if (this._globalsMode) {\n        this._prepareForGlobalsMode();\n      }\n\n      if (this.autoboot) {\n        this.waitForDOMReady();\n      }\n    },\n\n    /**\n      Create an ApplicationInstance for this application.\n       @public\n      @method buildInstance\n      @return {ApplicationInstance} the application instance\n    */\n    buildInstance(options = {}) {\n      options.base = this;\n      options.application = this;\n      return _instance.default.create(options);\n    },\n\n    /**\n      Start tracking an ApplicationInstance for this application.\n      Used when the ApplicationInstance is created.\n       @private\n      @method _watchInstance\n    */\n    _watchInstance(instance) {\n      this._applicationInstances.add(instance);\n    },\n\n    /**\n      Stop tracking an ApplicationInstance for this application.\n      Used when the ApplicationInstance is about to be destroyed.\n       @private\n      @method _unwatchInstance\n    */\n    _unwatchInstance(instance) {\n      return this._applicationInstances.delete(instance);\n    },\n\n    /**\n      Enable the legacy globals mode by allowing this application to act\n      as a global namespace. See the docs on the `_globalsMode` property\n      for details.\n       Most of these features are already deprecated in 1.x, so we can\n      stop using them internally and try to remove them.\n       @private\n      @method _prepareForGlobalsMode\n    */\n    _prepareForGlobalsMode() {\n      // Create subclass of Router for this Application instance.\n      // This is to ensure that someone reopening `App.Router` does not\n      // tamper with the default `Router`.\n      this.Router = (this.Router || _routing.Router).extend();\n\n      this._buildDeprecatedInstance();\n    },\n\n    /*\n      Build the deprecated instance for legacy globals mode support.\n      Called when creating and resetting the application.\n       This is orthogonal to autoboot: the deprecated instance needs to\n      be created at Application construction (not boot) time to expose\n      App.__container__. If autoboot sees that this instance exists,\n      it will continue booting it to avoid doing unncessary work (as\n      opposed to building a new instance at boot time), but they are\n      otherwise unrelated.\n       @private\n      @method _buildDeprecatedInstance\n    */\n    _buildDeprecatedInstance() {\n      // Build a default instance\n      var instance = this.buildInstance(); // Legacy support for App.__container__ and other global methods\n      // on App that rely on a single, default instance.\n\n      this.__deprecatedInstance__ = instance;\n      this.__container__ = instance.__container__;\n    },\n\n    /**\n      Automatically kick-off the boot process for the application once the\n      DOM has become ready.\n       The initialization itself is scheduled on the actions queue which\n      ensures that code-loading finishes before booting.\n       If you are asynchronously loading code, you should call `deferReadiness()`\n      to defer booting, and then call `advanceReadiness()` once all of your code\n      has finished loading.\n       @private\n      @method waitForDOMReady\n    */\n    waitForDOMReady() {\n      if (!this.$ || this.$.isReady) {\n        (0, _runloop.schedule)('actions', this, 'domReady');\n      } else {\n        this.$().ready((0, _runloop.bind)(this, 'domReady'));\n      }\n    },\n\n    /**\n      This is the autoboot flow:\n       1. Boot the app by calling `this.boot()`\n      2. Create an instance (or use the `__deprecatedInstance__` in globals mode)\n      3. Boot the instance by calling `instance.boot()`\n      4. Invoke the `App.ready()` callback\n      5. Kick-off routing on the instance\n       Ideally, this is all we would need to do:\n       ```javascript\n      _autoBoot() {\n        this.boot().then(() => {\n          let instance = (this._globalsMode) ? this.__deprecatedInstance__ : this.buildInstance();\n          return instance.boot();\n        }).then((instance) => {\n          App.ready();\n          instance.startRouting();\n        });\n      }\n      ```\n       Unfortunately, we cannot actually write this because we need to participate\n      in the \"synchronous\" boot process. While the code above would work fine on\n      the initial boot (i.e. DOM ready), when `App.reset()` is called, we need to\n      boot a new instance synchronously (see the documentation on `_bootSync()`\n      for details).\n       Because of this restriction, the actual logic of this method is located\n      inside `didBecomeReady()`.\n       @private\n      @method domReady\n    */\n    domReady() {\n      if (this.isDestroyed) {\n        return;\n      }\n\n      this._bootSync(); // Continues to `didBecomeReady`\n\n    },\n\n    /**\n      Use this to defer readiness until some condition is true.\n       Example:\n       ```javascript\n      import Application from '@ember/application';\n       let App = Application.create();\n       App.deferReadiness();\n       // $ is a reference to the jQuery object/function\n      import $ from 'jquery;\n       $.getJSON('/auth-token', function(token) {\n        App.token = token;\n        App.advanceReadiness();\n      });\n      ```\n       This allows you to perform asynchronous setup logic and defer\n      booting your application until the setup has finished.\n       However, if the setup requires a loading UI, it might be better\n      to use the router for this purpose.\n       @method deferReadiness\n      @public\n    */\n    deferReadiness() {\n      (true && !(this instanceof Application) && (0, _debug.assert)('You must call deferReadiness on an instance of Application', this instanceof Application));\n      (true && !(this._readinessDeferrals > 0) && (0, _debug.assert)('You cannot defer readiness since the `ready()` hook has already been called.', this._readinessDeferrals > 0));\n      this._readinessDeferrals++;\n    },\n\n    /**\n      Call `advanceReadiness` after any asynchronous setup logic has completed.\n      Each call to `deferReadiness` must be matched by a call to `advanceReadiness`\n      or the application will never become ready and routing will not begin.\n       @method advanceReadiness\n      @see {Application#deferReadiness}\n      @public\n    */\n    advanceReadiness() {\n      (true && !(this instanceof Application) && (0, _debug.assert)('You must call advanceReadiness on an instance of Application', this instanceof Application));\n      this._readinessDeferrals--;\n\n      if (this._readinessDeferrals === 0) {\n        (0, _runloop.once)(this, this.didBecomeReady);\n      }\n    },\n\n    /**\n      Initialize the application and return a promise that resolves with the `Application`\n      object when the boot process is complete.\n       Run any application initializers and run the application load hook. These hooks may\n      choose to defer readiness. For example, an authentication hook might want to defer\n      readiness until the auth token has been retrieved.\n       By default, this method is called automatically on \"DOM ready\"; however, if autoboot\n      is disabled, this is automatically called when the first application instance is\n      created via `visit`.\n       @public\n      @method boot\n      @return {Promise<Application,Error>}\n    */\n    boot() {\n      if (this._bootPromise) {\n        return this._bootPromise;\n      }\n\n      try {\n        this._bootSync();\n      } catch (_) {// Ignore the error: in the asynchronous boot path, the error is already reflected\n        // in the promise rejection\n      }\n\n      return this._bootPromise;\n    },\n\n    /**\n      Unfortunately, a lot of existing code assumes the booting process is\n      \"synchronous\". Specifically, a lot of tests assumes the last call to\n      `app.advanceReadiness()` or `app.reset()` will result in the app being\n      fully-booted when the current runloop completes.\n       We would like new code (like the `visit` API) to stop making this assumption,\n      so we created the asynchronous version above that returns a promise. But until\n      we have migrated all the code, we would have to expose this method for use\n      *internally* in places where we need to boot an app \"synchronously\".\n       @private\n    */\n    _bootSync() {\n      if (this._booted) {\n        return;\n      } // Even though this returns synchronously, we still need to make sure the\n      // boot promise exists for book-keeping purposes: if anything went wrong in\n      // the boot process, we need to store the error as a rejection on the boot\n      // promise so that a future caller of `boot()` can tell what failed.\n\n\n      var defer = this._bootResolver = _runtime.RSVP.defer();\n\n      this._bootPromise = defer.promise;\n\n      try {\n        this.runInitializers();\n        (0, _lazy_load.runLoadHooks)('application', this);\n        this.advanceReadiness(); // Continues to `didBecomeReady`\n      } catch (error) {\n        // For the asynchronous boot path\n        defer.reject(error); // For the synchronous boot path\n\n        throw error;\n      }\n    },\n\n    /**\n      Reset the application. This is typically used only in tests. It cleans up\n      the application in the following order:\n       1. Deactivate existing routes\n      2. Destroy all objects in the container\n      3. Create a new application container\n      4. Re-route to the existing url\n       Typical Example:\n       ```javascript\n      import Application from '@ember/application';\n      let App;\n       run(function() {\n        App = Application.create();\n      });\n       module('acceptance test', {\n        setup: function() {\n          App.reset();\n        }\n      });\n       test('first test', function() {\n        // App is freshly reset\n      });\n       test('second test', function() {\n        // App is again freshly reset\n      });\n      ```\n       Advanced Example:\n       Occasionally you may want to prevent the app from initializing during\n      setup. This could enable extra configuration, or enable asserting prior\n      to the app becoming ready.\n       ```javascript\n      import Application from '@ember/application';\n      let App;\n       run(function() {\n        App = Application.create();\n      });\n       module('acceptance test', {\n        setup: function() {\n          run(function() {\n            App.reset();\n            App.deferReadiness();\n          });\n        }\n      });\n       test('first test', function() {\n        ok(true, 'something before app is initialized');\n         run(function() {\n          App.advanceReadiness();\n        });\n         ok(true, 'something after app is initialized');\n      });\n      ```\n       @method reset\n      @public\n    */\n    reset() {\n      (true && !(this._globalsMode && this.autoboot) && (0, _debug.assert)(`Calling reset() on instances of \\`Application\\` is not\n            supported when globals mode is disabled; call \\`visit()\\` to\n            create new \\`ApplicationInstance\\`s and dispose them\n            via their \\`destroy()\\` method instead.`, this._globalsMode && this.autoboot));\n      var instance = this.__deprecatedInstance__;\n      this._readinessDeferrals = 1;\n      this._bootPromise = null;\n      this._bootResolver = null;\n      this._booted = false;\n\n      function handleReset() {\n        (0, _runloop.run)(instance, 'destroy');\n\n        this._buildDeprecatedInstance();\n\n        (0, _runloop.schedule)('actions', this, '_bootSync');\n      }\n\n      (0, _runloop.join)(this, handleReset);\n    },\n\n    /**\n      @private\n      @method didBecomeReady\n    */\n    didBecomeReady() {\n      try {\n        // TODO: Is this still needed for _globalsMode = false?\n        if (!(0, _debug.isTesting)()) {\n          // Eagerly name all classes that are already loaded\n          (0, _metal.processAllNamespaces)();\n          (0, _metal.setNamespaceSearchDisabled)(true);\n        } // See documentation on `_autoboot()` for details\n\n\n        if (this.autoboot) {\n          var instance;\n\n          if (this._globalsMode) {\n            // If we already have the __deprecatedInstance__ lying around, boot it to\n            // avoid unnecessary work\n            instance = this.__deprecatedInstance__;\n          } else {\n            // Otherwise, build an instance and boot it. This is currently unreachable,\n            // because we forced _globalsMode to === autoboot; but having this branch\n            // allows us to locally toggle that flag for weeding out legacy globals mode\n            // dependencies independently\n            instance = this.buildInstance();\n          }\n\n          instance._bootSync(); // TODO: App.ready() is not called when autoboot is disabled, is this correct?\n\n\n          this.ready();\n          instance.startRouting();\n        } // For the asynchronous boot path\n\n\n        this._bootResolver.resolve(this); // For the synchronous boot path\n\n\n        this._booted = true;\n      } catch (error) {\n        // For the asynchronous boot path\n        this._bootResolver.reject(error); // For the synchronous boot path\n\n\n        throw error;\n      }\n    },\n\n    /**\n      Called when the Application has become ready, immediately before routing\n      begins. The call will be delayed until the DOM has become ready.\n       @event ready\n      @public\n    */\n    ready() {\n      return this;\n    },\n\n    // This method must be moved to the application instance object\n    willDestroy() {\n      this._super(...arguments);\n\n      (0, _metal.setNamespaceSearchDisabled)(false);\n      this._booted = false;\n      this._bootPromise = null;\n      this._bootResolver = null;\n\n      if (_lazy_load._loaded.application === this) {\n        _lazy_load._loaded.application = undefined;\n      }\n\n      if (this._applicationInstances.size) {\n        this._applicationInstances.forEach(i => i.destroy());\n\n        this._applicationInstances.clear();\n      }\n    },\n\n    /**\n      Boot a new instance of `ApplicationInstance` for the current\n      application and navigate it to the given `url`. Returns a `Promise` that\n      resolves with the instance when the initial routing and rendering is\n      complete, or rejects with any error that occurred during the boot process.\n       When `autoboot` is disabled, calling `visit` would first cause the\n      application to boot, which runs the application initializers.\n       This method also takes a hash of boot-time configuration options for\n      customizing the instance's behavior. See the documentation on\n      `ApplicationInstance.BootOptions` for details.\n       `ApplicationInstance.BootOptions` is an interface class that exists\n      purely to document the available options; you do not need to construct it\n      manually. Simply pass a regular JavaScript object containing of the\n      desired options:\n       ```javascript\n      MyApp.visit(\"/\", { location: \"none\", rootElement: \"#container\" });\n      ```\n       ### Supported Scenarios\n       While the `BootOptions` class exposes a large number of knobs, not all\n      combinations of them are valid; certain incompatible combinations might\n      result in unexpected behavior.\n       For example, booting the instance in the full browser environment\n      while specifying a foreign `document` object (e.g. `{ isBrowser: true,\n      document: iframe.contentDocument }`) does not work correctly today,\n      largely due to Ember's jQuery dependency.\n       Currently, there are three officially supported scenarios/configurations.\n      Usages outside of these scenarios are not guaranteed to work, but please\n      feel free to file bug reports documenting your experience and any issues\n      you encountered to help expand support.\n       #### Browser Applications (Manual Boot)\n       The setup is largely similar to how Ember works out-of-the-box. Normally,\n      Ember will boot a default instance for your Application on \"DOM ready\".\n      However, you can customize this behavior by disabling `autoboot`.\n       For example, this allows you to render a miniture demo of your application\n      into a specific area on your marketing website:\n       ```javascript\n      import MyApp from 'my-app';\n       $(function() {\n        let App = MyApp.create({ autoboot: false });\n         let options = {\n          // Override the router's location adapter to prevent it from updating\n          // the URL in the address bar\n          location: 'none',\n           // Override the default `rootElement` on the app to render into a\n          // specific `div` on the page\n          rootElement: '#demo'\n        };\n         // Start the app at the special demo URL\n        App.visit('/demo', options);\n      });\n      ```\n       Or perhaps you might want to boot two instances of your app on the same\n      page for a split-screen multiplayer experience:\n       ```javascript\n      import MyApp from 'my-app';\n       $(function() {\n        let App = MyApp.create({ autoboot: false });\n         let sessionId = MyApp.generateSessionID();\n         let player1 = App.visit(`/matches/join?name=Player+1&session=${sessionId}`, { rootElement: '#left', location: 'none' });\n        let player2 = App.visit(`/matches/join?name=Player+2&session=${sessionId}`, { rootElement: '#right', location: 'none' });\n         Promise.all([player1, player2]).then(() => {\n          // Both apps have completed the initial render\n          $('#loading').fadeOut();\n        });\n      });\n      ```\n       Do note that each app instance maintains their own registry/container, so\n      they will run in complete isolation by default.\n       #### Server-Side Rendering (also known as FastBoot)\n       This setup allows you to run your Ember app in a server environment using\n      Node.js and render its content into static HTML for SEO purposes.\n       ```javascript\n      const HTMLSerializer = new SimpleDOM.HTMLSerializer(SimpleDOM.voidMap);\n       function renderURL(url) {\n        let dom = new SimpleDOM.Document();\n        let rootElement = dom.body;\n        let options = { isBrowser: false, document: dom, rootElement: rootElement };\n         return MyApp.visit(options).then(instance => {\n          try {\n            return HTMLSerializer.serialize(rootElement.firstChild);\n          } finally {\n            instance.destroy();\n          }\n        });\n      }\n      ```\n       In this scenario, because Ember does not have access to a global `document`\n      object in the Node.js environment, you must provide one explicitly. In practice,\n      in the non-browser environment, the stand-in `document` object only needs to\n      implement a limited subset of the full DOM API. The `SimpleDOM` library is known\n      to work.\n       Since there is no access to jQuery in the non-browser environment, you must also\n      specify a DOM `Element` object in the same `document` for the `rootElement` option\n      (as opposed to a selector string like `\"body\"`).\n       See the documentation on the `isBrowser`, `document` and `rootElement` properties\n      on `ApplicationInstance.BootOptions` for details.\n       #### Server-Side Resource Discovery\n       This setup allows you to run the routing layer of your Ember app in a server\n      environment using Node.js and completely disable rendering. This allows you\n      to simulate and discover the resources (i.e. AJAX requests) needed to fulfill\n      a given request and eagerly \"push\" these resources to the client.\n       ```app/initializers/network-service.js\n      import BrowserNetworkService from 'app/services/network/browser';\n      import NodeNetworkService from 'app/services/network/node';\n       // Inject a (hypothetical) service for abstracting all AJAX calls and use\n      // the appropriate implementation on the client/server. This also allows the\n      // server to log all the AJAX calls made during a particular request and use\n      // that for resource-discovery purpose.\n       export function initialize(application) {\n        if (window) { // browser\n          application.register('service:network', BrowserNetworkService);\n        } else { // node\n          application.register('service:network', NodeNetworkService);\n        }\n         application.inject('route', 'network', 'service:network');\n      };\n       export default {\n        name: 'network-service',\n        initialize: initialize\n      };\n      ```\n       ```app/routes/post.js\n      import Route from '@ember/routing/route';\n       // An example of how the (hypothetical) service is used in routes.\n       export default Route.extend({\n        model(params) {\n          return this.network.fetch(`/api/posts/${params.post_id}.json`);\n        },\n         afterModel(post) {\n          if (post.isExternalContent) {\n            return this.network.fetch(`/api/external/?url=${post.externalURL}`);\n          } else {\n            return post;\n          }\n        }\n      });\n      ```\n       ```javascript\n      // Finally, put all the pieces together\n       function discoverResourcesFor(url) {\n        return MyApp.visit(url, { isBrowser: false, shouldRender: false }).then(instance => {\n          let networkService = instance.lookup('service:network');\n          return networkService.requests; // => { \"/api/posts/123.json\": \"...\" }\n        });\n      }\n      ```\n       @public\n      @method visit\n      @param url {String} The initial URL to navigate to\n      @param options {ApplicationInstance.BootOptions}\n      @return {Promise<ApplicationInstance, Error>}\n    */\n    visit(url, options) {\n      return this.boot().then(() => {\n        var instance = this.buildInstance();\n        return instance.boot(options).then(() => instance.visit(url)).catch(error => {\n          (0, _runloop.run)(instance, 'destroy');\n          throw error;\n        });\n      });\n    }\n\n  });\n\n  Application.reopenClass({\n    /**\n      This creates a registry with the default Ember naming conventions.\n       It also configures the registry:\n       * registered views are created every time they are looked up (they are\n        not singletons)\n      * registered templates are not factories; the registered value is\n        returned directly.\n      * the router receives the application as its `namespace` property\n      * all controllers receive the router as their `target` and `controllers`\n        properties\n      * all controllers receive the application as their `namespace` property\n      * the application view receives the application controller as its\n        `controller` property\n      * the application view receives the application template as its\n        `defaultTemplate` property\n       @method buildRegistry\n      @static\n      @param {Application} namespace the application for which to\n        build the registry\n      @return {Ember.Registry} the built registry\n      @private\n    */\n    buildRegistry() {\n      // eslint-disable-line no-unused-vars\n      var registry = this._super(...arguments);\n\n      commonSetupRegistry(registry);\n      (0, _glimmer.setupApplicationRegistry)(registry);\n      return registry;\n    }\n\n  });\n\n  function commonSetupRegistry(registry) {\n    registry.register('router:main', _routing.Router.extend());\n    registry.register('-view-registry:main', {\n      create() {\n        return (0, _utils.dictionary)(null);\n      }\n\n    });\n    registry.register('route:basic', _routing.Route);\n    registry.register('event_dispatcher:main', _views.EventDispatcher);\n    registry.injection('router:main', 'namespace', 'application:main');\n    registry.register('location:auto', _routing.AutoLocation);\n    registry.register('location:hash', _routing.HashLocation);\n    registry.register('location:history', _routing.HistoryLocation);\n    registry.register('location:none', _routing.NoneLocation);\n    registry.register((0, _container.privatize)`-bucket-cache:main`, {\n      create() {\n        return new _routing.BucketCache();\n      }\n\n    });\n    registry.register('service:router', _routing.RouterService);\n    registry.injection('service:router', '_router', 'router:main');\n  }\n\n  function registerLibraries() {\n    if (!librariesRegistered) {\n      librariesRegistered = true;\n\n      if (_deprecatedFeatures.JQUERY_INTEGRATION && _browserEnvironment.hasDOM && !_views.jQueryDisabled) {\n        _metal.libraries.registerCoreLibrary('jQuery', (0, _views.jQuery)().jquery);\n      }\n    }\n  }\n\n  var _default = Application;\n  _exports.default = _default;\n});","define(\"@ember/application/lib/lazy_load\", [\"exports\", \"@ember/-internals/environment\", \"@ember/-internals/browser-environment\"], function (_exports, _environment, _browserEnvironment) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.onLoad = onLoad;\n  _exports.runLoadHooks = runLoadHooks;\n  _exports._loaded = void 0;\n\n  /*globals CustomEvent */\n\n  /**\n    @module @ember/application\n  */\n  var loadHooks = _environment.ENV.EMBER_LOAD_HOOKS || {};\n  var loaded = {};\n  var _loaded = loaded;\n  /**\n    Detects when a specific package of Ember (e.g. 'Application')\n    has fully loaded and is available for extension.\n  \n    The provided `callback` will be called with the `name` passed\n    resolved from a string into the object:\n  \n    ``` javascript\n    import { onLoad } from '@ember/application';\n  \n    onLoad('Ember.Application' function(hbars) {\n      hbars.registerHelper(...);\n    });\n    ```\n  \n    @method onLoad\n    @static\n    @for @ember/application\n    @param name {String} name of hook\n    @param callback {Function} callback to be called\n    @private\n  */\n\n  _exports._loaded = _loaded;\n\n  function onLoad(name, callback) {\n    var object = loaded[name];\n    loadHooks[name] = loadHooks[name] || [];\n    loadHooks[name].push(callback);\n\n    if (object) {\n      callback(object);\n    }\n  }\n  /**\n    Called when an Ember.js package (e.g Application) has finished\n    loading. Triggers any callbacks registered for this event.\n  \n    @method runLoadHooks\n    @static\n    @for @ember/application\n    @param name {String} name of hook\n    @param object {Object} object to pass to callbacks\n    @private\n  */\n\n\n  function runLoadHooks(name, object) {\n    loaded[name] = object;\n\n    if (_browserEnvironment.window && typeof CustomEvent === 'function') {\n      var event = new CustomEvent(name, {\n        detail: object,\n        name\n      });\n\n      _browserEnvironment.window.dispatchEvent(event);\n    }\n\n    if (loadHooks[name]) {\n      loadHooks[name].forEach(callback => callback(object));\n    }\n  }\n});","define(\"@ember/canary-features/index\", [\"exports\", \"@ember/-internals/environment\", \"@ember/polyfills\"], function (_exports, _environment, _polyfills) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.isEnabled = isEnabled;\n  _exports.EMBER_ROUTING_MODEL_ARG = _exports.EMBER_GLIMMER_SET_COMPONENT_TEMPLATE = _exports.EMBER_CUSTOM_COMPONENT_ARG_PROXY = _exports.EMBER_MODULE_UNIFICATION = _exports.EMBER_NAMED_BLOCKS = _exports.EMBER_IMPROVED_INSTRUMENTATION = _exports.EMBER_LIBRARIES_ISREGISTERED = _exports.FEATURES = _exports.DEFAULT_FEATURES = void 0;\n\n  /**\n    Set `EmberENV.FEATURES` in your application's `config/environment.js` file\n    to enable canary features in your application.\n  \n    See the [feature flag guide](https://guides.emberjs.com/release/configuring-ember/feature-flags/)\n    for more details.\n  \n    @module @ember/canary-features\n    @public\n  */\n  var DEFAULT_FEATURES = {\n    EMBER_LIBRARIES_ISREGISTERED: false,\n    EMBER_IMPROVED_INSTRUMENTATION: false,\n    EMBER_NAMED_BLOCKS: false,\n    EMBER_MODULE_UNIFICATION: false,\n    EMBER_CUSTOM_COMPONENT_ARG_PROXY: true,\n    EMBER_GLIMMER_SET_COMPONENT_TEMPLATE: true,\n    EMBER_ROUTING_MODEL_ARG: true\n  };\n  /**\n    The hash of enabled Canary features. Add to this, any canary features\n    before creating your application.\n  \n    @class FEATURES\n    @static\n    @since 1.1.0\n    @public\n  */\n\n  _exports.DEFAULT_FEATURES = DEFAULT_FEATURES;\n  var FEATURES = (0, _polyfills.assign)(DEFAULT_FEATURES, _environment.ENV.FEATURES);\n  /**\n    Determine whether the specified `feature` is enabled. Used by Ember's\n    build tools to exclude experimental features from beta/stable builds.\n  \n    You can define the following configuration options:\n  \n    * `EmberENV.ENABLE_OPTIONAL_FEATURES` - enable any features that have not been explicitly\n      enabled/disabled.\n  \n    @method isEnabled\n    @param {String} feature The feature to check\n    @return {Boolean}\n    @since 1.1.0\n    @public\n  */\n\n  _exports.FEATURES = FEATURES;\n\n  function isEnabled(feature) {\n    var featureValue = FEATURES[feature];\n\n    if (featureValue === true || featureValue === false) {\n      return featureValue;\n    } else if (_environment.ENV.ENABLE_OPTIONAL_FEATURES) {\n      return true;\n    } else {\n      return false;\n    }\n  }\n\n  function featureValue(value) {\n    if (_environment.ENV.ENABLE_OPTIONAL_FEATURES && value === null) {\n      return true;\n    }\n\n    return value;\n  }\n\n  var EMBER_LIBRARIES_ISREGISTERED = featureValue(FEATURES.EMBER_LIBRARIES_ISREGISTERED);\n  _exports.EMBER_LIBRARIES_ISREGISTERED = EMBER_LIBRARIES_ISREGISTERED;\n  var EMBER_IMPROVED_INSTRUMENTATION = featureValue(FEATURES.EMBER_IMPROVED_INSTRUMENTATION);\n  _exports.EMBER_IMPROVED_INSTRUMENTATION = EMBER_IMPROVED_INSTRUMENTATION;\n  var EMBER_NAMED_BLOCKS = featureValue(FEATURES.EMBER_NAMED_BLOCKS);\n  _exports.EMBER_NAMED_BLOCKS = EMBER_NAMED_BLOCKS;\n  var EMBER_MODULE_UNIFICATION = featureValue(FEATURES.EMBER_MODULE_UNIFICATION);\n  _exports.EMBER_MODULE_UNIFICATION = EMBER_MODULE_UNIFICATION;\n  var EMBER_CUSTOM_COMPONENT_ARG_PROXY = featureValue(FEATURES.EMBER_CUSTOM_COMPONENT_ARG_PROXY);\n  _exports.EMBER_CUSTOM_COMPONENT_ARG_PROXY = EMBER_CUSTOM_COMPONENT_ARG_PROXY;\n  var EMBER_GLIMMER_SET_COMPONENT_TEMPLATE = featureValue(FEATURES.EMBER_GLIMMER_SET_COMPONENT_TEMPLATE);\n  _exports.EMBER_GLIMMER_SET_COMPONENT_TEMPLATE = EMBER_GLIMMER_SET_COMPONENT_TEMPLATE;\n  var EMBER_ROUTING_MODEL_ARG = featureValue(FEATURES.EMBER_ROUTING_MODEL_ARG);\n  _exports.EMBER_ROUTING_MODEL_ARG = EMBER_ROUTING_MODEL_ARG;\n});","define(\"@ember/component/index\", [\"exports\", \"@ember/-internals/glimmer\"], function (_exports, _glimmer) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"Component\", {\n    enumerable: true,\n    get: function () {\n      return _glimmer.Component;\n    }\n  });\n});","define(\"@ember/component/template-only\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = templateOnlyComponent;\n  _exports.isTemplateOnlyComponent = isTemplateOnlyComponent;\n  _exports.TemplateOnlyComponent = void 0;\n\n  // This is only exported for types, don't use this class directly\n  class TemplateOnlyComponent {\n    constructor(moduleName = '@ember/component/template-only') {\n      this.moduleName = moduleName;\n    }\n\n    toString() {\n      return this.moduleName;\n    }\n\n  }\n  /**\n    @module @ember/component/template-only\n    @public\n  */\n\n  /**\n    This utility function is used to declare a given component has no backing class. When the rendering engine detects this it\n    is able to perform a number of optimizations. Templates that are associated with `templateOnly()` will be rendered _as is_\n    without adding a wrapping `<div>` (or any of the other element customization behaviors of [@ember/component](/ember/release/classes/Component)).\n    Specifically, this means that the template will be rendered as \"outer HTML\".\n  \n    In general, this method will be used by build time tooling and would not be directly written in an application. However,\n    at times it may be useful to use directly to leverage the \"outer HTML\" semantics mentioned above. For example, if an addon would like\n    to use these semantics for its templates but cannot be certain it will only be consumed by applications that have enabled the\n    `template-only-glimmer-components` optional feature.\n  \n    @example\n  \n    ```js\n    import templateOnly from '@ember/component/template-only';\n  \n    export default templateOnly();\n    ```\n  \n    @public\n    @method templateOnly\n    @param {String} moduleName the module name that the template only component represents, this will be used for debugging purposes\n    @category EMBER_GLIMMER_SET_COMPONENT_TEMPLATE\n  */\n\n\n  _exports.TemplateOnlyComponent = TemplateOnlyComponent;\n\n  function templateOnlyComponent(moduleName) {\n    return new TemplateOnlyComponent(moduleName);\n  }\n\n  function isTemplateOnlyComponent(component) {\n    return component instanceof TemplateOnlyComponent;\n  }\n});","define(\"@ember/controller/index\", [\"exports\", \"@ember/-internals/runtime\", \"@ember/-internals/metal\", \"@ember/controller/lib/controller_mixin\"], function (_exports, _runtime, _metal, _controller_mixin) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.inject = inject;\n  _exports.default = void 0;\n\n  /**\n  @module @ember/controller\n  */\n\n  /**\n    @class Controller\n    @extends EmberObject\n    @uses Ember.ControllerMixin\n    @public\n  */\n  var Controller = _runtime.FrameworkObject.extend(_controller_mixin.default);\n\n  (0, _runtime.setFrameworkClass)(Controller);\n  /**\n    Creates a property that lazily looks up another controller in the container.\n    Can only be used when defining another controller.\n  \n    Example:\n  \n    ```app/controllers/post.js\n    import Controller, {\n      inject as controller\n    } from '@ember/controller';\n  \n    export default class PostController extends Controller {\n      @controller posts;\n    }\n    ```\n  \n    Classic Class Example:\n  \n    ```app/controllers/post.js\n    import Controller, {\n      inject as controller\n    } from '@ember/controller';\n  \n    export default Controller.extend({\n      posts: controller()\n    });\n    ```\n  \n    This example will create a `posts` property on the `post` controller that\n    looks up the `posts` controller in the container, making it easy to reference\n    other controllers.\n  \n    @method inject\n    @static\n    @for @ember/controller\n    @since 1.10.0\n    @param {String} name (optional) name of the controller to inject, defaults to\n           the property's name\n    @return {ComputedDecorator} injection decorator instance\n    @public\n  */\n\n  function inject() {\n    return (0, _metal.inject)('controller', ...arguments);\n  }\n\n  var _default = Controller;\n  _exports.default = _default;\n});","define(\"@ember/controller/lib/controller_mixin\", [\"exports\", \"@ember/-internals/metal\", \"@ember/-internals/runtime\", \"@ember/-internals/utils\"], function (_exports, _metal, _runtime, _utils) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n  var MODEL = (0, _utils.symbol)('MODEL');\n  /**\n  @module ember\n  */\n\n  /**\n    @class ControllerMixin\n    @namespace Ember\n    @uses Ember.ActionHandler\n    @private\n  */\n\n  var _default = _metal.Mixin.create(_runtime.ActionHandler, {\n    /* ducktype as a controller */\n    isController: true,\n\n    /**\n      The object to which actions from the view should be sent.\n       For example, when a Handlebars template uses the `{{action}}` helper,\n      it will attempt to send the action to the view's controller's `target`.\n       By default, the value of the target property is set to the router, and\n      is injected when a controller is instantiated. This injection is applied\n      as part of the application's initialization process. In most cases the\n      `target` property will automatically be set to the logical consumer of\n      actions for the controller.\n       @property target\n      @default null\n      @public\n    */\n    target: null,\n    store: null,\n\n    /**\n      The controller's current model. When retrieving or modifying a controller's\n      model, this property should be used instead of the `content` property.\n       @property model\n      @public\n    */\n    model: (0, _metal.computed)({\n      get() {\n        return this[MODEL];\n      },\n\n      set(key, value) {\n        return this[MODEL] = value;\n      }\n\n    })\n  });\n\n  _exports.default = _default;\n});","define(\"@ember/debug/index\", [\"exports\", \"@ember/-internals/browser-environment\", \"@ember/error\", \"@ember/debug/lib/deprecate\", \"@ember/debug/lib/testing\", \"@ember/debug/lib/warn\", \"@ember/debug/lib/capture-render-tree\"], function (_exports, _browserEnvironment, _error, _deprecate2, _testing, _warn2, _captureRenderTree) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"registerDeprecationHandler\", {\n    enumerable: true,\n    get: function () {\n      return _deprecate2.registerHandler;\n    }\n  });\n  Object.defineProperty(_exports, \"isTesting\", {\n    enumerable: true,\n    get: function () {\n      return _testing.isTesting;\n    }\n  });\n  Object.defineProperty(_exports, \"setTesting\", {\n    enumerable: true,\n    get: function () {\n      return _testing.setTesting;\n    }\n  });\n  Object.defineProperty(_exports, \"registerWarnHandler\", {\n    enumerable: true,\n    get: function () {\n      return _warn2.registerHandler;\n    }\n  });\n  Object.defineProperty(_exports, \"captureRenderTree\", {\n    enumerable: true,\n    get: function () {\n      return _captureRenderTree.default;\n    }\n  });\n  _exports._warnIfUsingStrippedFeatureFlags = _exports.getDebugFunction = _exports.setDebugFunction = _exports.deprecateFunc = _exports.runInDebug = _exports.debugFreeze = _exports.debugSeal = _exports.deprecate = _exports.debug = _exports.warn = _exports.info = _exports.assert = void 0;\n\n  // These are the default production build versions:\n  var noop = () => {};\n\n  var assert = noop;\n  _exports.assert = assert;\n  var info = noop;\n  _exports.info = info;\n  var warn = noop;\n  _exports.warn = warn;\n  var debug = noop;\n  _exports.debug = debug;\n  var deprecate = noop;\n  _exports.deprecate = deprecate;\n  var debugSeal = noop;\n  _exports.debugSeal = debugSeal;\n  var debugFreeze = noop;\n  _exports.debugFreeze = debugFreeze;\n  var runInDebug = noop;\n  _exports.runInDebug = runInDebug;\n  var setDebugFunction = noop;\n  _exports.setDebugFunction = setDebugFunction;\n  var getDebugFunction = noop;\n  _exports.getDebugFunction = getDebugFunction;\n\n  var deprecateFunc = function () {\n    return arguments[arguments.length - 1];\n  };\n\n  _exports.deprecateFunc = deprecateFunc;\n\n  if (true\n  /* DEBUG */\n  ) {\n    _exports.setDebugFunction = setDebugFunction = function (type, callback) {\n      switch (type) {\n        case 'assert':\n          return _exports.assert = assert = callback;\n\n        case 'info':\n          return _exports.info = info = callback;\n\n        case 'warn':\n          return _exports.warn = warn = callback;\n\n        case 'debug':\n          return _exports.debug = debug = callback;\n\n        case 'deprecate':\n          return _exports.deprecate = deprecate = callback;\n\n        case 'debugSeal':\n          return _exports.debugSeal = debugSeal = callback;\n\n        case 'debugFreeze':\n          return _exports.debugFreeze = debugFreeze = callback;\n\n        case 'runInDebug':\n          return _exports.runInDebug = runInDebug = callback;\n\n        case 'deprecateFunc':\n          return _exports.deprecateFunc = deprecateFunc = callback;\n      }\n    };\n\n    _exports.getDebugFunction = getDebugFunction = function (type) {\n      switch (type) {\n        case 'assert':\n          return assert;\n\n        case 'info':\n          return info;\n\n        case 'warn':\n          return warn;\n\n        case 'debug':\n          return debug;\n\n        case 'deprecate':\n          return deprecate;\n\n        case 'debugSeal':\n          return debugSeal;\n\n        case 'debugFreeze':\n          return debugFreeze;\n\n        case 'runInDebug':\n          return runInDebug;\n\n        case 'deprecateFunc':\n          return deprecateFunc;\n      }\n    };\n  }\n  /**\n  @module @ember/debug\n  */\n\n\n  if (true\n  /* DEBUG */\n  ) {\n    /**\n      Verify that a certain expectation is met, or throw a exception otherwise.\n         This is useful for communicating assumptions in the code to other human\n      readers as well as catching bugs that accidentally violates these\n      expectations.\n         Assertions are removed from production builds, so they can be freely added\n      for documentation and debugging purposes without worries of incuring any\n      performance penalty. However, because of that, they should not be used for\n      checks that could reasonably fail during normal usage. Furthermore, care\n      should be taken to avoid accidentally relying on side-effects produced from\n      evaluating the condition itself, since the code will not run in production.\n         ```javascript\n      import { assert } from '@ember/debug';\n         // Test for truthiness\n      assert('Must pass a string', typeof str === 'string');\n         // Fail unconditionally\n      assert('This code path should never be run');\n      ```\n         @method assert\n      @static\n      @for @ember/debug\n      @param {String} description Describes the expectation. This will become the\n        text of the Error thrown if the assertion fails.\n      @param {any} condition Must be truthy for the assertion to pass. If\n        falsy, an exception will be thrown.\n      @public\n      @since 1.0.0\n    */\n    setDebugFunction('assert', function assert(desc, test) {\n      if (!test) {\n        throw new _error.default(`Assertion Failed: ${desc}`);\n      }\n    });\n    /**\n      Display a debug notice.\n         Calls to this function are removed from production builds, so they can be\n      freely added for documentation and debugging purposes without worries of\n      incuring any performance penalty.\n         ```javascript\n      import { debug } from '@ember/debug';\n         debug('I\\'m a debug notice!');\n      ```\n         @method debug\n      @for @ember/debug\n      @static\n      @param {String} message A debug message to display.\n      @public\n    */\n\n    setDebugFunction('debug', function debug(message) {\n      /* eslint-disable no-console */\n      if (console.debug) {\n        console.debug(`DEBUG: ${message}`);\n      } else {\n        console.log(`DEBUG: ${message}`);\n      }\n      /* eslint-ensable no-console */\n\n    });\n    /**\n      Display an info notice.\n         Calls to this function are removed from production builds, so they can be\n      freely added for documentation and debugging purposes without worries of\n      incuring any performance penalty.\n         @method info\n      @private\n    */\n\n    setDebugFunction('info', function info() {\n      console.info(...arguments);\n      /* eslint-disable-line no-console */\n    });\n    /**\n     @module @ember/debug\n     @public\n    */\n\n    /**\n      Alias an old, deprecated method with its new counterpart.\n         Display a deprecation warning with the provided message and a stack trace\n      (Chrome and Firefox only) when the assigned method is called.\n         Calls to this function are removed from production builds, so they can be\n      freely added for documentation and debugging purposes without worries of\n      incuring any performance penalty.\n         ```javascript\n      import { deprecateFunc } from '@ember/debug';\n         Ember.oldMethod = deprecateFunc('Please use the new, updated method', options, Ember.newMethod);\n      ```\n         @method deprecateFunc\n      @static\n      @for @ember/debug\n      @param {String} message A description of the deprecation.\n      @param {Object} [options] The options object for `deprecate`.\n      @param {Function} func The new function called to replace its deprecated counterpart.\n      @return {Function} A new function that wraps the original function with a deprecation warning\n      @private\n    */\n\n    setDebugFunction('deprecateFunc', function deprecateFunc(...args) {\n      if (args.length === 3) {\n        var [message, options, func] = args;\n        return function (...args) {\n          deprecate(message, false, options);\n          return func.apply(this, args);\n        };\n      } else {\n        var [_message, _func] = args;\n        return function () {\n          deprecate(_message);\n          return _func.apply(this, arguments);\n        };\n      }\n    });\n    /**\n     @module @ember/debug\n     @public\n    */\n\n    /**\n      Run a function meant for debugging.\n         Calls to this function are removed from production builds, so they can be\n      freely added for documentation and debugging purposes without worries of\n      incuring any performance penalty.\n         ```javascript\n      import Component from '@ember/component';\n      import { runInDebug } from '@ember/debug';\n         runInDebug(() => {\n        Component.reopen({\n          didInsertElement() {\n            console.log(\"I'm happy\");\n          }\n        });\n      });\n      ```\n         @method runInDebug\n      @for @ember/debug\n      @static\n      @param {Function} func The function to be executed.\n      @since 1.5.0\n      @public\n    */\n\n    setDebugFunction('runInDebug', function runInDebug(func) {\n      func();\n    });\n    setDebugFunction('debugSeal', function debugSeal(obj) {\n      Object.seal(obj);\n    });\n    setDebugFunction('debugFreeze', function debugFreeze(obj) {\n      // re-freezing an already frozen object introduces a significant\n      // performance penalty on Chrome (tested through 59).\n      //\n      // See: https://bugs.chromium.org/p/v8/issues/detail?id=6450\n      if (!Object.isFrozen(obj)) {\n        Object.freeze(obj);\n      }\n    });\n    setDebugFunction('deprecate', _deprecate2.default);\n    setDebugFunction('warn', _warn2.default);\n  }\n\n  var _warnIfUsingStrippedFeatureFlags;\n\n  _exports._warnIfUsingStrippedFeatureFlags = _warnIfUsingStrippedFeatureFlags;\n\n  if (true\n  /* DEBUG */\n  && !(0, _testing.isTesting)()) {\n    if (typeof window !== 'undefined' && (_browserEnvironment.isFirefox || _browserEnvironment.isChrome) && window.addEventListener) {\n      window.addEventListener('load', () => {\n        if (document.documentElement && document.documentElement.dataset && !document.documentElement.dataset.emberExtension) {\n          var downloadURL;\n\n          if (_browserEnvironment.isChrome) {\n            downloadURL = 'https://chrome.google.com/webstore/detail/ember-inspector/bmdblncegkenkacieihfhpjfppoconhi';\n          } else if (_browserEnvironment.isFirefox) {\n            downloadURL = 'https://addons.mozilla.org/en-US/firefox/addon/ember-inspector/';\n          }\n\n          debug(`For more advanced debugging, install the Ember Inspector from ${downloadURL}`);\n        }\n      }, false);\n    }\n  }\n});","define(\"@ember/debug/lib/capture-render-tree\", [\"exports\", \"@glimmer/util\"], function (_exports, _util) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = captureRenderTree;\n\n  /**\n    @module @ember/debug\n  */\n\n  /**\n    Ember Inspector calls this function to capture the current render tree.\n  \n    In production mode, this requires turning on `ENV._DEBUG_RENDER_TREE`\n    before loading Ember.\n  \n    @private\n    @static\n    @method captureRenderTree\n    @for @ember/debug\n    @param app {ApplicationInstance} An `ApplicationInstance`.\n    @since 3.14.0\n  */\n  function captureRenderTree(app) {\n    var env = (0, _util.expect)(app.lookup('-environment:main'), 'BUG: owner is missing -environment:main');\n    var rendererType = env.isInteractive ? 'renderer:-dom' : 'renderer:-inert';\n    var renderer = (0, _util.expect)(app.lookup(rendererType), `BUG: owner is missing ${rendererType}`);\n    return renderer.debugRenderTree.capture();\n  }\n});","define(\"@ember/debug/lib/deprecate\", [\"exports\", \"@ember/-internals/environment\", \"@ember/debug/index\", \"@ember/debug/lib/handlers\"], function (_exports, _environment, _index, _handlers) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.missingOptionsUntilDeprecation = _exports.missingOptionsIdDeprecation = _exports.missingOptionsDeprecation = _exports.registerHandler = _exports.default = void 0;\n\n  /**\n   @module @ember/debug\n   @public\n  */\n\n  /**\n    Allows for runtime registration of handler functions that override the default deprecation behavior.\n    Deprecations are invoked by calls to [@ember/debug/deprecate](/ember/release/classes/@ember%2Fdebug/methods/deprecate?anchor=deprecate).\n    The following example demonstrates its usage by registering a handler that throws an error if the\n    message contains the word \"should\", otherwise defers to the default handler.\n  \n    ```javascript\n    import { registerDeprecationHandler } from '@ember/debug';\n  \n    registerDeprecationHandler((message, options, next) => {\n      if (message.indexOf('should') !== -1) {\n        throw new Error(`Deprecation message with should: ${message}`);\n      } else {\n        // defer to whatever handler was registered before this one\n        next(message, options);\n      }\n    });\n    ```\n  \n    The handler function takes the following arguments:\n  \n    <ul>\n      <li> <code>message</code> - The message received from the deprecation call.</li>\n      <li> <code>options</code> - An object passed in with the deprecation call containing additional information including:</li>\n        <ul>\n          <li> <code>id</code> - An id of the deprecation in the form of <code>package-name.specific-deprecation</code>.</li>\n          <li> <code>until</code> - The Ember version number the feature and deprecation will be removed in.</li>\n        </ul>\n      <li> <code>next</code> - A function that calls into the previously registered handler.</li>\n    </ul>\n  \n    @public\n    @static\n    @method registerDeprecationHandler\n    @for @ember/debug\n    @param handler {Function} A function to handle deprecation calls.\n    @since 2.1.0\n  */\n  var registerHandler = () => {};\n\n  _exports.registerHandler = registerHandler;\n  var missingOptionsDeprecation;\n  _exports.missingOptionsDeprecation = missingOptionsDeprecation;\n  var missingOptionsIdDeprecation;\n  _exports.missingOptionsIdDeprecation = missingOptionsIdDeprecation;\n  var missingOptionsUntilDeprecation;\n  _exports.missingOptionsUntilDeprecation = missingOptionsUntilDeprecation;\n\n  var deprecate = () => {};\n\n  if (true\n  /* DEBUG */\n  ) {\n    _exports.registerHandler = registerHandler = function registerHandler(handler) {\n      (0, _handlers.registerHandler)('deprecate', handler);\n    };\n\n    var formatMessage = function formatMessage(_message, options) {\n      var message = _message;\n\n      if (options && options.id) {\n        message = message + ` [deprecation id: ${options.id}]`;\n      }\n\n      if (options && options.url) {\n        message += ` See ${options.url} for more details.`;\n      }\n\n      return message;\n    };\n\n    registerHandler(function logDeprecationToConsole(message, options) {\n      var updatedMessage = formatMessage(message, options);\n      console.warn(`DEPRECATION: ${updatedMessage}`); // eslint-disable-line no-console\n    });\n    var captureErrorForStack;\n\n    if (new Error().stack) {\n      captureErrorForStack = () => new Error();\n    } else {\n      captureErrorForStack = () => {\n        try {\n          __fail__.fail();\n        } catch (e) {\n          return e;\n        }\n      };\n    }\n\n    registerHandler(function logDeprecationStackTrace(message, options, next) {\n      if (_environment.ENV.LOG_STACKTRACE_ON_DEPRECATION) {\n        var stackStr = '';\n        var error = captureErrorForStack();\n        var stack;\n\n        if (error.stack) {\n          if (error['arguments']) {\n            // Chrome\n            stack = error.stack.replace(/^\\s+at\\s+/gm, '').replace(/^([^\\(]+?)([\\n$])/gm, '{anonymous}($1)$2').replace(/^Object.<anonymous>\\s*\\(([^\\)]+)\\)/gm, '{anonymous}($1)').split('\\n');\n            stack.shift();\n          } else {\n            // Firefox\n            stack = error.stack.replace(/(?:\\n@:0)?\\s+$/m, '').replace(/^\\(/gm, '{anonymous}(').split('\\n');\n          }\n\n          stackStr = `\\n    ${stack.slice(2).join('\\n    ')}`;\n        }\n\n        var updatedMessage = formatMessage(message, options);\n        console.warn(`DEPRECATION: ${updatedMessage}${stackStr}`); // eslint-disable-line no-console\n      } else {\n        next(message, options);\n      }\n    });\n    registerHandler(function raiseOnDeprecation(message, options, next) {\n      if (_environment.ENV.RAISE_ON_DEPRECATION) {\n        var updatedMessage = formatMessage(message);\n        throw new Error(updatedMessage);\n      } else {\n        next(message, options);\n      }\n    });\n    _exports.missingOptionsDeprecation = missingOptionsDeprecation = 'When calling `deprecate` you ' + 'must provide an `options` hash as the third parameter.  ' + '`options` should include `id` and `until` properties.';\n    _exports.missingOptionsIdDeprecation = missingOptionsIdDeprecation = 'When calling `deprecate` you must provide `id` in options.';\n    _exports.missingOptionsUntilDeprecation = missingOptionsUntilDeprecation = 'When calling `deprecate` you must provide `until` in options.';\n    /**\n     @module @ember/debug\n     @public\n     */\n\n    /**\n      Display a deprecation warning with the provided message and a stack trace\n      (Chrome and Firefox only).\n         * In a production build, this method is defined as an empty function (NOP).\n      Uses of this method in Ember itself are stripped from the ember.prod.js build.\n         @method deprecate\n      @for @ember/debug\n      @param {String} message A description of the deprecation.\n      @param {Boolean} test A boolean. If falsy, the deprecation will be displayed.\n      @param {Object} options\n      @param {String} options.id A unique id for this deprecation. The id can be\n        used by Ember debugging tools to change the behavior (raise, log or silence)\n        for that specific deprecation. The id should be namespaced by dots, e.g.\n        \"view.helper.select\".\n      @param {string} options.until The version of Ember when this deprecation\n        warning will be removed.\n      @param {String} [options.url] An optional url to the transition guide on the\n        emberjs.com website.\n      @static\n      @public\n      @since 1.0.0\n    */\n\n    deprecate = function deprecate(message, test, options) {\n      (0, _index.assert)(missingOptionsDeprecation, Boolean(options && (options.id || options.until)));\n      (0, _index.assert)(missingOptionsIdDeprecation, Boolean(options.id));\n      (0, _index.assert)(missingOptionsUntilDeprecation, Boolean(options.until));\n      (0, _handlers.invoke)('deprecate', message, test, options);\n    };\n  }\n\n  var _default = deprecate;\n  _exports.default = _default;\n});","define(\"@ember/debug/lib/handlers\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.invoke = _exports.registerHandler = _exports.HANDLERS = void 0;\n  var HANDLERS = {};\n  _exports.HANDLERS = HANDLERS;\n\n  var registerHandler = () => {};\n\n  _exports.registerHandler = registerHandler;\n\n  var invoke = () => {};\n\n  _exports.invoke = invoke;\n\n  if (true\n  /* DEBUG */\n  ) {\n    _exports.registerHandler = registerHandler = function registerHandler(type, callback) {\n      var nextHandler = HANDLERS[type] || (() => {});\n\n      HANDLERS[type] = (message, options) => {\n        callback(message, options, nextHandler);\n      };\n    };\n\n    _exports.invoke = invoke = function invoke(type, message, test, options) {\n      if (test) {\n        return;\n      }\n\n      var handlerForType = HANDLERS[type];\n\n      if (handlerForType) {\n        handlerForType(message, options);\n      }\n    };\n  }\n});","define(\"@ember/debug/lib/testing\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.isTesting = isTesting;\n  _exports.setTesting = setTesting;\n  var testing = false;\n\n  function isTesting() {\n    return testing;\n  }\n\n  function setTesting(value) {\n    testing = Boolean(value);\n  }\n});","define(\"@ember/debug/lib/warn\", [\"exports\", \"@ember/debug/index\", \"@ember/debug/lib/handlers\"], function (_exports, _index, _handlers) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.missingOptionsDeprecation = _exports.missingOptionsIdDeprecation = _exports.registerHandler = _exports.default = void 0;\n\n  var registerHandler = () => {};\n\n  _exports.registerHandler = registerHandler;\n\n  var warn = () => {};\n\n  var missingOptionsDeprecation;\n  _exports.missingOptionsDeprecation = missingOptionsDeprecation;\n  var missingOptionsIdDeprecation;\n  /**\n  @module @ember/debug\n  */\n\n  _exports.missingOptionsIdDeprecation = missingOptionsIdDeprecation;\n\n  if (true\n  /* DEBUG */\n  ) {\n    /**\n      Allows for runtime registration of handler functions that override the default warning behavior.\n      Warnings are invoked by calls made to [@ember/debug/warn](/ember/release/classes/@ember%2Fdebug/methods/warn?anchor=warn).\n      The following example demonstrates its usage by registering a handler that does nothing overriding Ember's\n      default warning behavior.\n         ```javascript\n      import { registerWarnHandler } from '@ember/debug';\n         // next is not called, so no warnings get the default behavior\n      registerWarnHandler(() => {});\n      ```\n         The handler function takes the following arguments:\n         <ul>\n        <li> <code>message</code> - The message received from the warn call. </li>\n        <li> <code>options</code> - An object passed in with the warn call containing additional information including:</li>\n          <ul>\n            <li> <code>id</code> - An id of the warning in the form of <code>package-name.specific-warning</code>.</li>\n          </ul>\n        <li> <code>next</code> - A function that calls into the previously registered handler.</li>\n      </ul>\n         @public\n      @static\n      @method registerWarnHandler\n      @for @ember/debug\n      @param handler {Function} A function to handle warnings.\n      @since 2.1.0\n    */\n    _exports.registerHandler = registerHandler = function registerHandler(handler) {\n      (0, _handlers.registerHandler)('warn', handler);\n    };\n\n    registerHandler(function logWarning(message) {\n      /* eslint-disable no-console */\n      console.warn(`WARNING: ${message}`);\n      /* eslint-enable no-console */\n    });\n    _exports.missingOptionsDeprecation = missingOptionsDeprecation = 'When calling `warn` you ' + 'must provide an `options` hash as the third parameter.  ' + '`options` should include an `id` property.';\n    _exports.missingOptionsIdDeprecation = missingOptionsIdDeprecation = 'When calling `warn` you must provide `id` in options.';\n    /**\n      Display a warning with the provided message.\n         * In a production build, this method is defined as an empty function (NOP).\n      Uses of this method in Ember itself are stripped from the ember.prod.js build.\n         ```javascript\n      import { warn } from '@ember/debug';\n      import tomsterCount from './tomster-counter'; // a module in my project\n         // Log a warning if we have more than 3 tomsters\n      warn('Too many tomsters!', tomsterCount <= 3, {\n        id: 'ember-debug.too-many-tomsters'\n      });\n      ```\n         @method warn\n      @for @ember/debug\n      @static\n      @param {String} message A warning to display.\n      @param {Boolean} test An optional boolean. If falsy, the warning\n        will be displayed.\n      @param {Object} options An object that can be used to pass a unique\n        `id` for this warning.  The `id` can be used by Ember debugging tools\n        to change the behavior (raise, log, or silence) for that specific warning.\n        The `id` should be namespaced by dots, e.g. \"ember-debug.feature-flag-with-features-stripped\"\n      @public\n      @since 1.0.0\n    */\n\n    warn = function warn(message, test, options) {\n      if (arguments.length === 2 && typeof test === 'object') {\n        options = test;\n        test = false;\n      }\n\n      (0, _index.assert)(missingOptionsDeprecation, Boolean(options));\n      (0, _index.assert)(missingOptionsIdDeprecation, Boolean(options && options.id));\n      (0, _handlers.invoke)('warn', message, test, options);\n    };\n  }\n\n  var _default = warn;\n  _exports.default = _default;\n});","define(\"@ember/deprecated-features/index\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.GLOBALS_RESOLVER = _exports.PARTIALS = _exports.EMBER_COMPONENT_IS_VISIBLE = _exports.MOUSE_ENTER_LEAVE_MOVE_EVENTS = _exports.FUNCTION_PROTOTYPE_EXTENSIONS = _exports.APP_CTRL_ROUTER_PROPS = _exports.ALIAS_METHOD = _exports.JQUERY_INTEGRATION = _exports.COMPONENT_MANAGER_STRING_LOOKUP = _exports.ROUTER_EVENTS = _exports.MERGE = _exports.LOGGER = _exports.EMBER_EXTEND_PROTOTYPES = _exports.SEND_ACTION = void 0;\n\n  /* eslint-disable no-implicit-coercion */\n  // These versions should be the version that the deprecation was _introduced_,\n  // not the version that the feature will be removed.\n  var SEND_ACTION = !!'3.4.0';\n  _exports.SEND_ACTION = SEND_ACTION;\n  var EMBER_EXTEND_PROTOTYPES = !!'3.2.0-beta.5';\n  _exports.EMBER_EXTEND_PROTOTYPES = EMBER_EXTEND_PROTOTYPES;\n  var LOGGER = !!'3.2.0-beta.1';\n  _exports.LOGGER = LOGGER;\n  var MERGE = !!'3.6.0-beta.1';\n  _exports.MERGE = MERGE;\n  var ROUTER_EVENTS = !!'4.0.0';\n  _exports.ROUTER_EVENTS = ROUTER_EVENTS;\n  var COMPONENT_MANAGER_STRING_LOOKUP = !!'3.8.0';\n  _exports.COMPONENT_MANAGER_STRING_LOOKUP = COMPONENT_MANAGER_STRING_LOOKUP;\n  var JQUERY_INTEGRATION = !!'3.9.0';\n  _exports.JQUERY_INTEGRATION = JQUERY_INTEGRATION;\n  var ALIAS_METHOD = !!'3.9.0';\n  _exports.ALIAS_METHOD = ALIAS_METHOD;\n  var APP_CTRL_ROUTER_PROPS = !!'3.10.0-beta.1';\n  _exports.APP_CTRL_ROUTER_PROPS = APP_CTRL_ROUTER_PROPS;\n  var FUNCTION_PROTOTYPE_EXTENSIONS = !!'3.11.0-beta.1';\n  _exports.FUNCTION_PROTOTYPE_EXTENSIONS = FUNCTION_PROTOTYPE_EXTENSIONS;\n  var MOUSE_ENTER_LEAVE_MOVE_EVENTS = !!'3.13.0-beta.1';\n  _exports.MOUSE_ENTER_LEAVE_MOVE_EVENTS = MOUSE_ENTER_LEAVE_MOVE_EVENTS;\n  var EMBER_COMPONENT_IS_VISIBLE = !!'3.15.0-beta.1';\n  _exports.EMBER_COMPONENT_IS_VISIBLE = EMBER_COMPONENT_IS_VISIBLE;\n  var PARTIALS = !!'3.15.0-beta.1';\n  _exports.PARTIALS = PARTIALS;\n  var GLOBALS_RESOLVER = !!'3.16.0-beta.1';\n  _exports.GLOBALS_RESOLVER = GLOBALS_RESOLVER;\n});","define(\"@ember/engine/index\", [\"exports\", \"@ember/engine/lib/engine-parent\", \"@ember/-internals/utils\", \"@ember/controller\", \"@ember/-internals/runtime\", \"@ember/-internals/container\", \"dag-map\", \"@ember/debug\", \"@ember/-internals/metal\", \"@ember/application/globals-resolver\", \"@ember/engine/instance\", \"@ember/-internals/routing\", \"@ember/-internals/extension-support\", \"@ember/-internals/views\", \"@ember/-internals/glimmer\"], function (_exports, _engineParent, _utils, _controller, _runtime, _container, _dagMap, _debug, _metal, _globalsResolver, _instance, _routing, _extensionSupport, _views, _glimmer) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"getEngineParent\", {\n    enumerable: true,\n    get: function () {\n      return _engineParent.getEngineParent;\n    }\n  });\n  Object.defineProperty(_exports, \"setEngineParent\", {\n    enumerable: true,\n    get: function () {\n      return _engineParent.setEngineParent;\n    }\n  });\n  _exports.default = void 0;\n\n  function props(obj) {\n    var properties = [];\n\n    for (var key in obj) {\n      properties.push(key);\n    }\n\n    return properties;\n  }\n  /**\n  @module @ember/engine\n  */\n\n  /**\n    The `Engine` class contains core functionality for both applications and\n    engines.\n  \n    Each engine manages a registry that's used for dependency injection and\n    exposed through `RegistryProxy`.\n  \n    Engines also manage initializers and instance initializers.\n  \n    Engines can spawn `EngineInstance` instances via `buildInstance()`.\n  \n    @class Engine\n    @extends Ember.Namespace\n    @uses RegistryProxy\n    @public\n  */\n\n\n  var Engine = _runtime.Namespace.extend(_runtime.RegistryProxyMixin, {\n    init() {\n      this._super(...arguments);\n\n      this.buildRegistry();\n    },\n\n    /**\n      A private flag indicating whether an engine's initializers have run yet.\n       @private\n      @property _initializersRan\n    */\n    _initializersRan: false,\n\n    /**\n      Ensure that initializers are run once, and only once, per engine.\n       @private\n      @method ensureInitializers\n    */\n    ensureInitializers() {\n      if (!this._initializersRan) {\n        this.runInitializers();\n        this._initializersRan = true;\n      }\n    },\n\n    /**\n      Create an EngineInstance for this engine.\n       @public\n      @method buildInstance\n      @return {EngineInstance} the engine instance\n    */\n    buildInstance(options = {}) {\n      this.ensureInitializers();\n      options.base = this;\n      return _instance.default.create(options);\n    },\n\n    /**\n      Build and configure the registry for the current engine.\n       @private\n      @method buildRegistry\n      @return {Ember.Registry} the configured registry\n    */\n    buildRegistry() {\n      var registry = this.__registry__ = this.constructor.buildRegistry(this);\n      return registry;\n    },\n\n    /**\n      @private\n      @method initializer\n    */\n    initializer(options) {\n      this.constructor.initializer(options);\n    },\n\n    /**\n      @private\n      @method instanceInitializer\n    */\n    instanceInitializer(options) {\n      this.constructor.instanceInitializer(options);\n    },\n\n    /**\n      @private\n      @method runInitializers\n    */\n    runInitializers() {\n      this._runInitializer('initializers', (name, initializer) => {\n        (true && !(Boolean(initializer)) && (0, _debug.assert)(`No application initializer named '${name}'`, Boolean(initializer)));\n        initializer.initialize(this);\n      });\n    },\n\n    /**\n      @private\n      @since 1.12.0\n      @method runInstanceInitializers\n    */\n    runInstanceInitializers(instance) {\n      this._runInitializer('instanceInitializers', (name, initializer) => {\n        (true && !(Boolean(initializer)) && (0, _debug.assert)(`No instance initializer named '${name}'`, Boolean(initializer)));\n        initializer.initialize(instance);\n      });\n    },\n\n    _runInitializer(bucketName, cb) {\n      var initializersByName = (0, _metal.get)(this.constructor, bucketName);\n      var initializers = props(initializersByName);\n      var graph = new _dagMap.default();\n      var initializer;\n\n      for (var i = 0; i < initializers.length; i++) {\n        initializer = initializersByName[initializers[i]];\n        graph.add(initializer.name, initializer, initializer.before, initializer.after);\n      }\n\n      graph.topsort(cb);\n    }\n\n  });\n\n  Engine.reopenClass({\n    initializers: Object.create(null),\n    instanceInitializers: Object.create(null),\n\n    /**\n      The goal of initializers should be to register dependencies and injections.\n      This phase runs once. Because these initializers may load code, they are\n      allowed to defer application readiness and advance it. If you need to access\n      the container or store you should use an InstanceInitializer that will be run\n      after all initializers and therefore after all code is loaded and the app is\n      ready.\n       Initializer receives an object which has the following attributes:\n      `name`, `before`, `after`, `initialize`. The only required attribute is\n      `initialize`, all others are optional.\n       * `name` allows you to specify under which name the initializer is registered.\n      This must be a unique name, as trying to register two initializers with the\n      same name will result in an error.\n       ```app/initializer/named-initializer.js\n      import { debug } from '@ember/debug';\n       export function initialize() {\n        debug('Running namedInitializer!');\n      }\n       export default {\n        name: 'named-initializer',\n        initialize\n      };\n      ```\n       * `before` and `after` are used to ensure that this initializer is ran prior\n      or after the one identified by the value. This value can be a single string\n      or an array of strings, referencing the `name` of other initializers.\n       An example of ordering initializers, we create an initializer named `first`:\n       ```app/initializer/first.js\n      import { debug } from '@ember/debug';\n       export function initialize() {\n        debug('First initializer!');\n      }\n       export default {\n        name: 'first',\n        initialize\n      };\n      ```\n       ```bash\n      // DEBUG: First initializer!\n      ```\n       We add another initializer named `second`, specifying that it should run\n      after the initializer named `first`:\n       ```app/initializer/second.js\n      import { debug } from '@ember/debug';\n       export function initialize() {\n        debug('Second initializer!');\n      }\n       export default {\n        name: 'second',\n        after: 'first',\n        initialize\n      };\n      ```\n       ```\n      // DEBUG: First initializer!\n      // DEBUG: Second initializer!\n      ```\n       Afterwards we add a further initializer named `pre`, this time specifying\n      that it should run before the initializer named `first`:\n       ```app/initializer/pre.js\n      import { debug } from '@ember/debug';\n       export function initialize() {\n        debug('Pre initializer!');\n      }\n       export default {\n        name: 'pre',\n        before: 'first',\n        initialize\n      };\n      ```\n       ```bash\n      // DEBUG: Pre initializer!\n      // DEBUG: First initializer!\n      // DEBUG: Second initializer!\n      ```\n       Finally we add an initializer named `post`, specifying it should run after\n      both the `first` and the `second` initializers:\n       ```app/initializer/post.js\n      import { debug } from '@ember/debug';\n       export function initialize() {\n        debug('Post initializer!');\n      }\n       export default {\n        name: 'post',\n        after: ['first', 'second'],\n        initialize\n      };\n      ```\n       ```bash\n      // DEBUG: Pre initializer!\n      // DEBUG: First initializer!\n      // DEBUG: Second initializer!\n      // DEBUG: Post initializer!\n      ```\n       * `initialize` is a callback function that receives one argument,\n        `application`, on which you can operate.\n       Example of using `application` to register an adapter:\n       ```app/initializer/api-adapter.js\n      import ApiAdapter from '../utils/api-adapter';\n       export function initialize(application) {\n        application.register('api-adapter:main', ApiAdapter);\n      }\n       export default {\n        name: 'post',\n        after: ['first', 'second'],\n        initialize\n      };\n      ```\n       @method initializer\n      @param initializer {Object}\n      @public\n    */\n    initializer: buildInitializerMethod('initializers', 'initializer'),\n\n    /**\n      Instance initializers run after all initializers have run. Because\n      instance initializers run after the app is fully set up. We have access\n      to the store, container, and other items. However, these initializers run\n      after code has loaded and are not allowed to defer readiness.\n       Instance initializer receives an object which has the following attributes:\n      `name`, `before`, `after`, `initialize`. The only required attribute is\n      `initialize`, all others are optional.\n       * `name` allows you to specify under which name the instanceInitializer is\n      registered. This must be a unique name, as trying to register two\n      instanceInitializer with the same name will result in an error.\n       ```app/initializer/named-instance-initializer.js\n      import { debug } from '@ember/debug';\n       export function initialize() {\n        debug('Running named-instance-initializer!');\n      }\n       export default {\n        name: 'named-instance-initializer',\n        initialize\n      };\n      ```\n       * `before` and `after` are used to ensure that this initializer is ran prior\n      or after the one identified by the value. This value can be a single string\n      or an array of strings, referencing the `name` of other initializers.\n       * See Application.initializer for discussion on the usage of before\n      and after.\n       Example instanceInitializer to preload data into the store.\n       ```app/initializer/preload-data.js\n      import $ from 'jquery';\n       export function initialize(application) {\n          var userConfig, userConfigEncoded, store;\n          // We have a HTML escaped JSON representation of the user's basic\n          // configuration generated server side and stored in the DOM of the main\n          // index.html file. This allows the app to have access to a set of data\n          // without making any additional remote calls. Good for basic data that is\n          // needed for immediate rendering of the page. Keep in mind, this data,\n          // like all local models and data can be manipulated by the user, so it\n          // should not be relied upon for security or authorization.\n           // Grab the encoded data from the meta tag\n          userConfigEncoded = $('head meta[name=app-user-config]').attr('content');\n           // Unescape the text, then parse the resulting JSON into a real object\n          userConfig = JSON.parse(unescape(userConfigEncoded));\n           // Lookup the store\n          store = application.lookup('service:store');\n           // Push the encoded JSON into the store\n          store.pushPayload(userConfig);\n      }\n       export default {\n        name: 'named-instance-initializer',\n        initialize\n      };\n      ```\n       @method instanceInitializer\n      @param instanceInitializer\n      @public\n    */\n    instanceInitializer: buildInitializerMethod('instanceInitializers', 'instance initializer'),\n\n    /**\n      This creates a registry with the default Ember naming conventions.\n       It also configures the registry:\n       * registered views are created every time they are looked up (they are\n        not singletons)\n      * registered templates are not factories; the registered value is\n        returned directly.\n      * the router receives the application as its `namespace` property\n      * all controllers receive the router as their `target` and `controllers`\n        properties\n      * all controllers receive the application as their `namespace` property\n      * the application view receives the application controller as its\n        `controller` property\n      * the application view receives the application template as its\n        `defaultTemplate` property\n       @method buildRegistry\n      @static\n      @param {Application} namespace the application for which to\n        build the registry\n      @return {Ember.Registry} the built registry\n      @private\n    */\n    buildRegistry(namespace) {\n      var registry = new _container.Registry({\n        resolver: resolverFor(namespace)\n      });\n      registry.set = _metal.set;\n      registry.register('application:main', namespace, {\n        instantiate: false\n      });\n      commonSetupRegistry(registry);\n      (0, _glimmer.setupEngineRegistry)(registry);\n      return registry;\n    },\n\n    /**\n      Set this to provide an alternate class to `DefaultResolver`\n       @deprecated Use 'Resolver' instead\n      @property resolver\n      @public\n    */\n    resolver: null,\n\n    /**\n      Set this to provide an alternate class to `DefaultResolver`\n       @property resolver\n      @public\n    */\n    Resolver: null\n  });\n  /**\n    This function defines the default lookup rules for container lookups:\n  \n    * templates are looked up on `Ember.TEMPLATES`\n    * other names are looked up on the application after classifying the name.\n      For example, `controller:post` looks up `App.PostController` by default.\n    * if the default lookup fails, look for registered classes on the container\n  \n    This allows the application to register default injections in the container\n    that could be overridden by the normal naming convention.\n  \n    @private\n    @method resolverFor\n    @param {Ember.Namespace} namespace the namespace to look for classes\n    @return {*} the resolved value for a given lookup\n  */\n\n  function resolverFor(namespace) {\n    var ResolverClass = (0, _metal.get)(namespace, 'Resolver') || _globalsResolver.default;\n\n    var props = {\n      namespace\n    };\n    return ResolverClass.create(props);\n  }\n\n  function buildInitializerMethod(bucketName, humanName) {\n    return function (initializer) {\n      // If this is the first initializer being added to a subclass, we are going to reopen the class\n      // to make sure we have a new `initializers` object, which extends from the parent class' using\n      // prototypal inheritance. Without this, attempting to add initializers to the subclass would\n      // pollute the parent class as well as other subclasses.\n      if (this.superclass[bucketName] !== undefined && this.superclass[bucketName] === this[bucketName]) {\n        var attrs = {};\n        attrs[bucketName] = Object.create(this[bucketName]);\n        this.reopenClass(attrs);\n      }\n\n      (true && !(!this[bucketName][initializer.name]) && (0, _debug.assert)(`The ${humanName} '${initializer.name}' has already been registered`, !this[bucketName][initializer.name]));\n      (true && !((0, _utils.canInvoke)(initializer, 'initialize')) && (0, _debug.assert)(`An ${humanName} cannot be registered without an initialize function`, (0, _utils.canInvoke)(initializer, 'initialize')));\n      (true && !(initializer.name !== undefined) && (0, _debug.assert)(`An ${humanName} cannot be registered without a name property`, initializer.name !== undefined));\n      this[bucketName][initializer.name] = initializer;\n    };\n  }\n\n  function commonSetupRegistry(registry) {\n    registry.optionsForType('component', {\n      singleton: false\n    });\n    registry.optionsForType('view', {\n      singleton: false\n    });\n    registry.register('controller:basic', _controller.default, {\n      instantiate: false\n    });\n    registry.injection('view', '_viewRegistry', '-view-registry:main');\n    registry.injection('renderer', '_viewRegistry', '-view-registry:main');\n    registry.injection('route', '_topLevelViewTemplate', 'template:-outlet');\n    registry.injection('view:-outlet', 'namespace', 'application:main');\n    registry.injection('controller', 'target', 'router:main');\n    registry.injection('controller', 'namespace', 'application:main');\n    registry.injection('router', '_bucketCache', (0, _container.privatize)`-bucket-cache:main`);\n    registry.injection('route', '_bucketCache', (0, _container.privatize)`-bucket-cache:main`);\n    registry.injection('route', '_router', 'router:main'); // Register the routing service...\n\n    registry.register('service:-routing', _routing.RoutingService); // Then inject the app router into it\n\n    registry.injection('service:-routing', 'router', 'router:main'); // DEBUGGING\n\n    registry.register('resolver-for-debugging:main', registry.resolver, {\n      instantiate: false\n    });\n    registry.injection('container-debug-adapter:main', 'resolver', 'resolver-for-debugging:main');\n    registry.injection('data-adapter:main', 'containerDebugAdapter', 'container-debug-adapter:main'); // Custom resolver authors may want to register their own ContainerDebugAdapter with this key\n\n    registry.register('container-debug-adapter:main', _extensionSupport.ContainerDebugAdapter);\n    registry.register('component-lookup:main', _views.ComponentLookup);\n  }\n\n  var _default = Engine;\n  _exports.default = _default;\n});","define(\"@ember/engine/instance\", [\"exports\", \"@ember/-internals/runtime\", \"@ember/debug\", \"@ember/error\", \"@ember/-internals/container\", \"@ember/-internals/utils\", \"@ember/engine/lib/engine-parent\"], function (_exports, _runtime, _debug, _error, _container, _utils, _engineParent) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n  @module @ember/engine\n  */\n\n  /**\n    The `EngineInstance` encapsulates all of the stateful aspects of a\n    running `Engine`.\n  \n    @public\n    @class EngineInstance\n    @extends EmberObject\n    @uses RegistryProxyMixin\n    @uses ContainerProxyMixin\n  */\n  var EngineInstance = _runtime.Object.extend(_runtime.RegistryProxyMixin, _runtime.ContainerProxyMixin, {\n    /**\n      The base `Engine` for which this is an instance.\n       @property {Engine} engine\n      @private\n    */\n    base: null,\n\n    init() {\n      this._super(...arguments); // Ensure the guid gets setup for this instance\n\n\n      (0, _utils.guidFor)(this);\n      var base = this.base;\n\n      if (!base) {\n        base = this.application;\n        this.base = base;\n      } // Create a per-instance registry that will use the application's registry\n      // as a fallback for resolving registrations.\n\n\n      var registry = this.__registry__ = new _container.Registry({\n        fallback: base.__registry__\n      }); // Create a per-instance container from the instance's registry\n\n      this.__container__ = registry.container({\n        owner: this\n      });\n      this._booted = false;\n    },\n\n    /**\n      Initialize the `EngineInstance` and return a promise that resolves\n      with the instance itself when the boot process is complete.\n       The primary task here is to run any registered instance initializers.\n       See the documentation on `BootOptions` for the options it takes.\n       @public\n      @method boot\n      @param options {Object}\n      @return {Promise<EngineInstance,Error>}\n    */\n    boot(options) {\n      if (this._bootPromise) {\n        return this._bootPromise;\n      }\n\n      this._bootPromise = new _runtime.RSVP.Promise(resolve => resolve(this._bootSync(options)));\n      return this._bootPromise;\n    },\n\n    /**\n      Unfortunately, a lot of existing code assumes booting an instance is\n      synchronous – specifically, a lot of tests assume the last call to\n      `app.advanceReadiness()` or `app.reset()` will result in a new instance\n      being fully-booted when the current runloop completes.\n       We would like new code (like the `visit` API) to stop making this\n      assumption, so we created the asynchronous version above that returns a\n      promise. But until we have migrated all the code, we would have to expose\n      this method for use *internally* in places where we need to boot an instance\n      synchronously.\n       @private\n    */\n    _bootSync(options) {\n      if (this._booted) {\n        return this;\n      }\n\n      (true && !((0, _engineParent.getEngineParent)(this)) && (0, _debug.assert)(\"An engine instance's parent must be set via `setEngineParent(engine, parent)` prior to calling `engine.boot()`.\", (0, _engineParent.getEngineParent)(this)));\n      this.cloneParentDependencies();\n      this.setupRegistry(options);\n      this.base.runInstanceInitializers(this);\n      this._booted = true;\n      return this;\n    },\n\n    setupRegistry(options = this.__container__.lookup('-environment:main')) {\n      this.constructor.setupRegistry(this.__registry__, options);\n    },\n\n    /**\n     Unregister a factory.\n      Overrides `RegistryProxy#unregister` in order to clear any cached instances\n     of the unregistered factory.\n      @public\n     @method unregister\n     @param {String} fullName\n     */\n    unregister(fullName) {\n      this.__container__.reset(fullName);\n\n      this._super(...arguments);\n    },\n\n    /**\n      Build a new `EngineInstance` that's a child of this instance.\n       Engines must be registered by name with their parent engine\n      (or application).\n       @private\n      @method buildChildEngineInstance\n      @param name {String} the registered name of the engine.\n      @param options {Object} options provided to the engine instance.\n      @return {EngineInstance,Error}\n    */\n    buildChildEngineInstance(name, options = {}) {\n      var Engine = this.lookup(`engine:${name}`);\n\n      if (!Engine) {\n        throw new _error.default(`You attempted to mount the engine '${name}', but it is not registered with its parent.`);\n      }\n\n      var engineInstance = Engine.buildInstance(options);\n      (0, _engineParent.setEngineParent)(engineInstance, this);\n      return engineInstance;\n    },\n\n    /**\n      Clone dependencies shared between an engine instance and its parent.\n       @private\n      @method cloneParentDependencies\n    */\n    cloneParentDependencies() {\n      var parent = (0, _engineParent.getEngineParent)(this);\n      var registrations = ['route:basic', 'service:-routing'];\n      registrations.forEach(key => this.register(key, parent.resolveRegistration(key)));\n      var env = parent.lookup('-environment:main');\n      this.register('-environment:main', env, {\n        instantiate: false\n      });\n      var singletons = ['router:main', (0, _container.privatize)`-bucket-cache:main`, '-view-registry:main', `renderer:-${env.isInteractive ? 'dom' : 'inert'}`, 'service:-document'];\n\n      if (env.isInteractive) {\n        singletons.push('event_dispatcher:main');\n      }\n\n      singletons.forEach(key => this.register(key, parent.lookup(key), {\n        instantiate: false\n      }));\n      this.inject('view', '_environment', '-environment:main');\n      this.inject('route', '_environment', '-environment:main');\n    }\n\n  });\n\n  EngineInstance.reopenClass({\n    /**\n     @private\n     @method setupRegistry\n     @param {Registry} registry\n     @param {BootOptions} options\n     */\n    setupRegistry(registry, options) {\n      // when no options/environment is present, do nothing\n      if (!options) {\n        return;\n      }\n\n      registry.injection('view', '_environment', '-environment:main');\n      registry.injection('route', '_environment', '-environment:main');\n\n      if (options.isInteractive) {\n        registry.injection('view', 'renderer', 'renderer:-dom');\n        registry.injection('component', 'renderer', 'renderer:-dom');\n      } else {\n        registry.injection('view', 'renderer', 'renderer:-inert');\n        registry.injection('component', 'renderer', 'renderer:-inert');\n      }\n    }\n\n  });\n  var _default = EngineInstance;\n  _exports.default = _default;\n});","define(\"@ember/engine/lib/engine-parent\", [\"exports\", \"@ember/-internals/utils\"], function (_exports, _utils) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.getEngineParent = getEngineParent;\n  _exports.setEngineParent = setEngineParent;\n\n  /**\n  @module @ember/engine\n  */\n  var ENGINE_PARENT = (0, _utils.symbol)('ENGINE_PARENT');\n  /**\n    `getEngineParent` retrieves an engine instance's parent instance.\n  \n    @method getEngineParent\n    @param {EngineInstance} engine An engine instance.\n    @return {EngineInstance} The parent engine instance.\n    @for @ember/engine\n    @static\n    @private\n  */\n\n  function getEngineParent(engine) {\n    return engine[ENGINE_PARENT];\n  }\n  /**\n    `setEngineParent` sets an engine instance's parent instance.\n  \n    @method setEngineParent\n    @param {EngineInstance} engine An engine instance.\n    @param {EngineInstance} parent The parent engine instance.\n    @private\n  */\n\n\n  function setEngineParent(engine, parent) {\n    engine[ENGINE_PARENT] = parent;\n  }\n});","define(\"@ember/error/index\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n   @module @ember/error\n  */\n\n  /**\n    The JavaScript Error object used by Ember.assert.\n  \n    @class Error\n    @namespace Ember\n    @extends Error\n    @constructor\n    @public\n  */\n  var _default = Error;\n  _exports.default = _default;\n});","define(\"@ember/instrumentation/index\", [\"exports\", \"@ember/-internals/environment\"], function (_exports, _environment) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.instrument = instrument;\n  _exports._instrumentStart = _instrumentStart;\n  _exports.subscribe = subscribe;\n  _exports.unsubscribe = unsubscribe;\n  _exports.reset = reset;\n  _exports.flaggedInstrument = _exports.subscribers = void 0;\n\n  /* eslint no-console:off */\n\n  /* global console */\n\n  /**\n  @module @ember/instrumentation\n  @private\n  */\n\n  /**\n    The purpose of the Ember Instrumentation module is\n    to provide efficient, general-purpose instrumentation\n    for Ember.\n  \n    Subscribe to a listener by using `subscribe`:\n  \n    ```javascript\n    import { subscribe } from '@ember/instrumentation';\n  \n    subscribe(\"render\", {\n      before(name, timestamp, payload) {\n  \n      },\n  \n      after(name, timestamp, payload) {\n  \n      }\n    });\n    ```\n  \n    If you return a value from the `before` callback, that same\n    value will be passed as a fourth parameter to the `after`\n    callback.\n  \n    Instrument a block of code by using `instrument`:\n  \n    ```javascript\n    import { instrument } from '@ember/instrumentation';\n  \n    instrument(\"render.handlebars\", payload, function() {\n      // rendering logic\n    }, binding);\n    ```\n  \n    Event names passed to `instrument` are namespaced\n    by periods, from more general to more specific. Subscribers\n    can listen for events by whatever level of granularity they\n    are interested in.\n  \n    In the above example, the event is `render.handlebars`,\n    and the subscriber listened for all events beginning with\n    `render`. It would receive callbacks for events named\n    `render`, `render.handlebars`, `render.container`, or\n    even `render.handlebars.layout`.\n  \n    @class Instrumentation\n    @static\n    @private\n  */\n  var subscribers = [];\n  _exports.subscribers = subscribers;\n  var cache = {};\n\n  function populateListeners(name) {\n    var listeners = [];\n    var subscriber;\n\n    for (var i = 0; i < subscribers.length; i++) {\n      subscriber = subscribers[i];\n\n      if (subscriber.regex.test(name)) {\n        listeners.push(subscriber.object);\n      }\n    }\n\n    cache[name] = listeners;\n    return listeners;\n  }\n\n  var time = (() => {\n    var perf = 'undefined' !== typeof window ? window.performance || {} : {};\n    var fn = perf.now || perf.mozNow || perf.webkitNow || perf.msNow || perf.oNow;\n    return fn ? fn.bind(perf) : Date.now;\n  })();\n\n  function isCallback(value) {\n    return typeof value === 'function';\n  }\n\n  function instrument(name, p1, p2, p3) {\n    var _payload;\n\n    var callback;\n    var binding;\n\n    if (arguments.length <= 3 && isCallback(p1)) {\n      callback = p1;\n      binding = p2;\n    } else {\n      _payload = p1;\n      callback = p2;\n      binding = p3;\n    } // fast path\n\n\n    if (subscribers.length === 0) {\n      return callback.call(binding);\n    } // avoid allocating the payload in fast path\n\n\n    var payload = _payload || {};\n\n    var finalizer = _instrumentStart(name, () => payload);\n\n    if (finalizer === NOOP) {\n      return callback.call(binding);\n    } else {\n      return withFinalizer(callback, finalizer, payload, binding);\n    }\n  }\n\n  var flaggedInstrument;\n  _exports.flaggedInstrument = flaggedInstrument;\n\n  if (false\n  /* EMBER_IMPROVED_INSTRUMENTATION */\n  ) {\n      _exports.flaggedInstrument = flaggedInstrument = instrument;\n    } else {\n    _exports.flaggedInstrument = flaggedInstrument = function instrument(_name, _payload, callback) {\n      return callback();\n    };\n  }\n\n  function withFinalizer(callback, finalizer, payload, binding) {\n    try {\n      return callback.call(binding);\n    } catch (e) {\n      payload.exception = e;\n      throw e;\n    } finally {\n      finalizer();\n    }\n  }\n\n  function NOOP() {}\n\n  function _instrumentStart(name, payloadFunc, payloadArg) {\n    if (subscribers.length === 0) {\n      return NOOP;\n    }\n\n    var listeners = cache[name];\n\n    if (!listeners) {\n      listeners = populateListeners(name);\n    }\n\n    if (listeners.length === 0) {\n      return NOOP;\n    }\n\n    var payload = payloadFunc(payloadArg);\n    var STRUCTURED_PROFILE = _environment.ENV.STRUCTURED_PROFILE;\n    var timeName;\n\n    if (STRUCTURED_PROFILE) {\n      timeName = `${name}: ${payload.object}`;\n      console.time(timeName);\n    }\n\n    var beforeValues = [];\n    var timestamp = time();\n\n    for (var i = 0; i < listeners.length; i++) {\n      var listener = listeners[i];\n      beforeValues.push(listener.before(name, timestamp, payload));\n    }\n\n    return function _instrumentEnd() {\n      var timestamp = time();\n\n      for (var _i = 0; _i < listeners.length; _i++) {\n        var _listener = listeners[_i];\n\n        if (typeof _listener.after === 'function') {\n          _listener.after(name, timestamp, payload, beforeValues[_i]);\n        }\n      }\n\n      if (STRUCTURED_PROFILE) {\n        console.timeEnd(timeName);\n      }\n    };\n  }\n  /**\n    Subscribes to a particular event or instrumented block of code.\n  \n    @method subscribe\n    @for @ember/instrumentation\n    @static\n  \n    @param {String} [pattern] Namespaced event name.\n    @param {Object} [object] Before and After hooks.\n  \n    @return {Subscriber}\n    @private\n  */\n\n\n  function subscribe(pattern, object) {\n    var paths = pattern.split('.');\n    var path;\n    var regexes = [];\n\n    for (var i = 0; i < paths.length; i++) {\n      path = paths[i];\n\n      if (path === '*') {\n        regexes.push('[^\\\\.]*');\n      } else {\n        regexes.push(path);\n      }\n    }\n\n    var regex = regexes.join('\\\\.');\n    regex = `${regex}(\\\\..*)?`;\n    var subscriber = {\n      pattern,\n      regex: new RegExp(`^${regex}$`),\n      object\n    };\n    subscribers.push(subscriber);\n    cache = {};\n    return subscriber;\n  }\n  /**\n    Unsubscribes from a particular event or instrumented block of code.\n  \n    @method unsubscribe\n    @for @ember/instrumentation\n    @static\n  \n    @param {Object} [subscriber]\n    @private\n  */\n\n\n  function unsubscribe(subscriber) {\n    var index = 0;\n\n    for (var i = 0; i < subscribers.length; i++) {\n      if (subscribers[i] === subscriber) {\n        index = i;\n      }\n    }\n\n    subscribers.splice(index, 1);\n    cache = {};\n  }\n  /**\n    Resets `Instrumentation` by flushing list of subscribers.\n  \n    @method reset\n    @for @ember/instrumentation\n    @static\n    @private\n  */\n\n\n  function reset() {\n    subscribers.length = 0;\n    cache = {};\n  }\n});","define(\"@ember/modifier/index\", [\"exports\", \"@ember/-internals/glimmer\"], function (_exports, _glimmer) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"setModifierManager\", {\n    enumerable: true,\n    get: function () {\n      return _glimmer.setModifierManager;\n    }\n  });\n  Object.defineProperty(_exports, \"capabilties\", {\n    enumerable: true,\n    get: function () {\n      return _glimmer.modifierCapabilities;\n    }\n  });\n});","define(\"@ember/object/compat\", [\"exports\", \"@ember/-internals/metal\", \"@ember/debug\", \"@glimmer/validator\"], function (_exports, _metal, _debug, _validator) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.dependentKeyCompat = dependentKeyCompat;\n\n  var wrapGetterSetter = function (_target, key, desc) {\n    var {\n      get: originalGet\n    } = desc;\n\n    if (originalGet !== undefined) {\n      desc.get = function () {\n        var propertyTag = (0, _metal.tagForProperty)(this, key);\n        var ret;\n        var tag = (0, _validator.track)(() => {\n          ret = originalGet.call(this);\n        });\n        (0, _validator.updateTag)(propertyTag, tag);\n        (0, _validator.consumeTag)(tag);\n        return ret;\n      };\n    }\n\n    return desc;\n  };\n\n  function dependentKeyCompat(target, key, desc) {\n    if (!(0, _metal.isElementDescriptor)([target, key, desc])) {\n      desc = target;\n\n      var decorator = function (target, key, _desc, _meta, isClassicDecorator) {\n        (true && !(isClassicDecorator) && (0, _debug.assert)('The @dependentKeyCompat decorator may only be passed a method when used in classic classes. You should decorate getters/setters directly in native classes', isClassicDecorator));\n        (true && !(desc !== null && typeof desc === 'object' && (typeof desc.get === 'function' || typeof desc.set === 'function')) && (0, _debug.assert)('The dependentKeyCompat() decorator must be passed a getter or setter when used in classic classes', desc !== null && typeof desc === 'object' && (typeof desc.get === 'function' || typeof desc.set === 'function')));\n        return wrapGetterSetter(target, key, desc);\n      };\n\n      (0, _metal.setClassicDecorator)(decorator);\n      return decorator;\n    }\n\n    (true && !(desc !== null && typeof desc.get === 'function' || typeof desc.set === 'function') && (0, _debug.assert)('The @dependentKeyCompat decorator must be applied to getters/setters when used in native classes', desc !== null && typeof desc.get === 'function' || typeof desc.set === 'function'));\n    return wrapGetterSetter(target, key, desc);\n  }\n\n  (0, _metal.setClassicDecorator)(dependentKeyCompat);\n});","define(\"@ember/object/computed\", [\"exports\", \"@ember/object/lib/computed/computed_macros\", \"@ember/object/lib/computed/reduce_computed_macros\"], function (_exports, _computed_macros, _reduce_computed_macros) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"empty\", {\n    enumerable: true,\n    get: function () {\n      return _computed_macros.empty;\n    }\n  });\n  Object.defineProperty(_exports, \"notEmpty\", {\n    enumerable: true,\n    get: function () {\n      return _computed_macros.notEmpty;\n    }\n  });\n  Object.defineProperty(_exports, \"none\", {\n    enumerable: true,\n    get: function () {\n      return _computed_macros.none;\n    }\n  });\n  Object.defineProperty(_exports, \"not\", {\n    enumerable: true,\n    get: function () {\n      return _computed_macros.not;\n    }\n  });\n  Object.defineProperty(_exports, \"bool\", {\n    enumerable: true,\n    get: function () {\n      return _computed_macros.bool;\n    }\n  });\n  Object.defineProperty(_exports, \"match\", {\n    enumerable: true,\n    get: function () {\n      return _computed_macros.match;\n    }\n  });\n  Object.defineProperty(_exports, \"equal\", {\n    enumerable: true,\n    get: function () {\n      return _computed_macros.equal;\n    }\n  });\n  Object.defineProperty(_exports, \"gt\", {\n    enumerable: true,\n    get: function () {\n      return _computed_macros.gt;\n    }\n  });\n  Object.defineProperty(_exports, \"gte\", {\n    enumerable: true,\n    get: function () {\n      return _computed_macros.gte;\n    }\n  });\n  Object.defineProperty(_exports, \"lt\", {\n    enumerable: true,\n    get: function () {\n      return _computed_macros.lt;\n    }\n  });\n  Object.defineProperty(_exports, \"lte\", {\n    enumerable: true,\n    get: function () {\n      return _computed_macros.lte;\n    }\n  });\n  Object.defineProperty(_exports, \"oneWay\", {\n    enumerable: true,\n    get: function () {\n      return _computed_macros.oneWay;\n    }\n  });\n  Object.defineProperty(_exports, \"readOnly\", {\n    enumerable: true,\n    get: function () {\n      return _computed_macros.readOnly;\n    }\n  });\n  Object.defineProperty(_exports, \"deprecatingAlias\", {\n    enumerable: true,\n    get: function () {\n      return _computed_macros.deprecatingAlias;\n    }\n  });\n  Object.defineProperty(_exports, \"and\", {\n    enumerable: true,\n    get: function () {\n      return _computed_macros.and;\n    }\n  });\n  Object.defineProperty(_exports, \"or\", {\n    enumerable: true,\n    get: function () {\n      return _computed_macros.or;\n    }\n  });\n  Object.defineProperty(_exports, \"sum\", {\n    enumerable: true,\n    get: function () {\n      return _reduce_computed_macros.sum;\n    }\n  });\n  Object.defineProperty(_exports, \"min\", {\n    enumerable: true,\n    get: function () {\n      return _reduce_computed_macros.min;\n    }\n  });\n  Object.defineProperty(_exports, \"max\", {\n    enumerable: true,\n    get: function () {\n      return _reduce_computed_macros.max;\n    }\n  });\n  Object.defineProperty(_exports, \"map\", {\n    enumerable: true,\n    get: function () {\n      return _reduce_computed_macros.map;\n    }\n  });\n  Object.defineProperty(_exports, \"sort\", {\n    enumerable: true,\n    get: function () {\n      return _reduce_computed_macros.sort;\n    }\n  });\n  Object.defineProperty(_exports, \"setDiff\", {\n    enumerable: true,\n    get: function () {\n      return _reduce_computed_macros.setDiff;\n    }\n  });\n  Object.defineProperty(_exports, \"mapBy\", {\n    enumerable: true,\n    get: function () {\n      return _reduce_computed_macros.mapBy;\n    }\n  });\n  Object.defineProperty(_exports, \"filter\", {\n    enumerable: true,\n    get: function () {\n      return _reduce_computed_macros.filter;\n    }\n  });\n  Object.defineProperty(_exports, \"filterBy\", {\n    enumerable: true,\n    get: function () {\n      return _reduce_computed_macros.filterBy;\n    }\n  });\n  Object.defineProperty(_exports, \"uniq\", {\n    enumerable: true,\n    get: function () {\n      return _reduce_computed_macros.uniq;\n    }\n  });\n  Object.defineProperty(_exports, \"uniqBy\", {\n    enumerable: true,\n    get: function () {\n      return _reduce_computed_macros.uniqBy;\n    }\n  });\n  Object.defineProperty(_exports, \"union\", {\n    enumerable: true,\n    get: function () {\n      return _reduce_computed_macros.union;\n    }\n  });\n  Object.defineProperty(_exports, \"intersect\", {\n    enumerable: true,\n    get: function () {\n      return _reduce_computed_macros.intersect;\n    }\n  });\n  Object.defineProperty(_exports, \"collect\", {\n    enumerable: true,\n    get: function () {\n      return _reduce_computed_macros.collect;\n    }\n  });\n});","define(\"@ember/object/index\", [\"exports\", \"@ember/debug\", \"@ember/polyfills\", \"@ember/-internals/metal\"], function (_exports, _debug, _polyfills, _metal) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.action = action;\n\n  /**\n    Decorator that turns the target function into an Action which can be accessed\n    directly by reference.\n  \n    ```js\n    import Component from '@ember/component';\n    import { action, set } from '@ember/object';\n  \n    export default class Tooltip extends Component {\n      @action\n      toggleShowing() {\n        set(this, 'isShowing', !this.isShowing);\n      }\n    }\n    ```\n    ```hbs\n    <!-- template.hbs -->\n    <button {{action this.toggleShowing}}>Show tooltip</button>\n  \n    {{#if isShowing}}\n      <div class=\"tooltip\">\n        I'm a tooltip!\n      </div>\n    {{/if}}\n    ```\n  \n    Decorated actions also interop with the string style template actions:\n  \n    ```hbs\n    <!-- template.hbs -->\n    <button {{action \"toggleShowing\"}}>Show tooltip</button>\n  \n    {{#if isShowing}}\n      <div class=\"tooltip\">\n        I'm a tooltip!\n      </div>\n    {{/if}}\n    ```\n  \n    It also binds the function directly to the instance, so it can be used in any\n    context and will correctly refer to the class it came from:\n  \n    ```hbs\n    <!-- template.hbs -->\n    <button\n      {{did-insert this.toggleShowing}}\n      {{on \"click\" this.toggleShowing}}\n    >\n      Show tooltip\n    </button>\n  \n    {{#if isShowing}}\n      <div class=\"tooltip\">\n        I'm a tooltip!\n      </div>\n    {{/if}}\n    ```\n  \n    This can also be used in JavaScript code directly:\n  \n    ```js\n    import Component from '@ember/component';\n    import { action, set } from '@ember/object';\n  \n    export default class Tooltip extends Component {\n      constructor() {\n        super(...arguments);\n  \n        // this.toggleShowing is still bound correctly when added to\n        // the event listener\n        document.addEventListener('click', this.toggleShowing);\n      }\n  \n      @action\n      toggleShowing() {\n        set(this, 'isShowing', !this.isShowing);\n      }\n    }\n    ```\n  \n    This is considered best practice, since it means that methods will be bound\n    correctly no matter where they are used. By contrast, the `{{action}}` helper\n    and modifier can also be used to bind context, but it will be required for\n    every usage of the method:\n  \n    ```hbs\n    <!-- template.hbs -->\n    <button\n      {{did-insert (action this.toggleShowing)}}\n      {{on \"click\" (action this.toggleShowing)}}\n    >\n      Show tooltip\n    </button>\n  \n    {{#if isShowing}}\n      <div class=\"tooltip\">\n        I'm a tooltip!\n      </div>\n    {{/if}}\n    ```\n  \n    They also do not have equivalents in JavaScript directly, so they cannot be\n    used for other situations where binding would be useful.\n  \n    @public\n    @method action\n    @for @ember/object\n    @static\n    @param {Function|undefined} callback The function to turn into an action,\n                                         when used in classic classes\n    @return {PropertyDecorator} property decorator instance\n  */\n  var BINDINGS_MAP = new WeakMap();\n\n  function setupAction(target, key, actionFn) {\n    if (target.constructor !== undefined && typeof target.constructor.proto === 'function') {\n      target.constructor.proto();\n    }\n\n    if (!target.hasOwnProperty('actions')) {\n      var parentActions = target.actions; // we need to assign because of the way mixins copy actions down when inheriting\n\n      target.actions = parentActions ? (0, _polyfills.assign)({}, parentActions) : {};\n    }\n\n    target.actions[key] = actionFn;\n    return {\n      get() {\n        var bindings = BINDINGS_MAP.get(this);\n\n        if (bindings === undefined) {\n          bindings = new Map();\n          BINDINGS_MAP.set(this, bindings);\n        }\n\n        var fn = bindings.get(actionFn);\n\n        if (fn === undefined) {\n          fn = actionFn.bind(this);\n          bindings.set(actionFn, fn);\n        }\n\n        return fn;\n      }\n\n    };\n  }\n\n  function action(target, key, desc) {\n    var actionFn;\n\n    if (!(0, _metal.isElementDescriptor)([target, key, desc])) {\n      actionFn = target;\n\n      var decorator = function (target, key, desc, meta, isClassicDecorator) {\n        (true && !(isClassicDecorator) && (0, _debug.assert)('The @action decorator may only be passed a method when used in classic classes. You should decorate methods directly in native classes', isClassicDecorator));\n        (true && !(typeof actionFn === 'function') && (0, _debug.assert)('The action() decorator must be passed a method when used in classic classes', typeof actionFn === 'function'));\n        return setupAction(target, key, actionFn);\n      };\n\n      (0, _metal.setClassicDecorator)(decorator);\n      return decorator;\n    }\n\n    actionFn = desc.value;\n    (true && !(typeof actionFn === 'function') && (0, _debug.assert)('The @action decorator must be applied to methods when used in native classes', typeof actionFn === 'function'));\n    return setupAction(target, key, actionFn);\n  }\n\n  (0, _metal.setClassicDecorator)(action);\n});","define(\"@ember/object/lib/computed/computed_macros\", [\"exports\", \"@ember/-internals/metal\", \"@ember/debug\"], function (_exports, _metal, _debug) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.empty = empty;\n  _exports.notEmpty = notEmpty;\n  _exports.none = none;\n  _exports.not = not;\n  _exports.bool = bool;\n  _exports.match = match;\n  _exports.equal = equal;\n  _exports.gt = gt;\n  _exports.gte = gte;\n  _exports.lt = lt;\n  _exports.lte = lte;\n  _exports.oneWay = oneWay;\n  _exports.readOnly = readOnly;\n  _exports.deprecatingAlias = deprecatingAlias;\n  _exports.or = _exports.and = void 0;\n\n  /**\n  @module @ember/object\n  */\n  function expandPropertiesToArray(predicateName, properties) {\n    var expandedProperties = [];\n\n    function extractProperty(entry) {\n      expandedProperties.push(entry);\n    }\n\n    for (var i = 0; i < properties.length; i++) {\n      var property = properties[i];\n      (true && !(property.indexOf(' ') < 0) && (0, _debug.assert)(`Dependent keys passed to computed.${predicateName}() can\\'t have spaces.`, property.indexOf(' ') < 0));\n      (0, _metal.expandProperties)(property, extractProperty);\n    }\n\n    return expandedProperties;\n  }\n\n  function generateComputedWithPredicate(name, predicate) {\n    return (...properties) => {\n      (true && !(!(0, _metal.isElementDescriptor)(properties)) && (0, _debug.assert)(`You attempted to use @${name} as a decorator directly, but it requires at least one dependent key parameter`, !(0, _metal.isElementDescriptor)(properties)));\n      var dependentKeys = expandPropertiesToArray(name, properties);\n      var computedFunc = (0, _metal.computed)(...dependentKeys, function () {\n        var lastIdx = dependentKeys.length - 1;\n\n        for (var i = 0; i < lastIdx; i++) {\n          var value = (0, _metal.get)(this, dependentKeys[i]);\n\n          if (!predicate(value)) {\n            return value;\n          }\n        }\n\n        return (0, _metal.get)(this, dependentKeys[lastIdx]);\n      });\n      return computedFunc;\n    };\n  }\n  /**\n    A computed property macro that returns true if the value of the dependent\n    property is null, an empty string, empty array, or empty function.\n  \n    Example:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { empty } from '@ember/object/computed';\n  \n    class ToDoList {\n      constructor(todos) {\n        set(this, 'todos', todos);\n      }\n  \n      @empty('todos') isDone;\n    }\n  \n    let todoList = new ToDoList(\n      ['Unit Test', 'Documentation', 'Release']\n    );\n  \n    todoList.isDone; // false\n    set(todoList, 'todos', []);\n    todoList.isDone; // true\n    ```\n  \n    Classic Class Example:\n  \n    ```javascript\n    import EmberObject, { set } from '@ember/object';\n    import { empty } from '@ember/object/computed';\n  \n    let ToDoList = EmberObject.extend({\n      isDone: empty('todos')\n    });\n  \n    let todoList = ToDoList.create({\n      todos: ['Unit Test', 'Documentation', 'Release']\n    });\n  \n    todoList.isDone; // false\n    set(todoList, 'todos', []);\n    todoList.isDone; // true\n    ```\n  \n    @since 1.6.0\n    @method empty\n    @static\n    @for @ember/object/computed\n    @param {String} dependentKey\n    @return {ComputedProperty} computed property which returns true if the value\n    of the dependent property is null, an empty string, empty array, or empty\n    function and false if the underlying value is not empty.\n  \n    @public\n  */\n\n\n  function empty(dependentKey) {\n    (true && !(!(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))) && (0, _debug.assert)('You attempted to use @empty as a decorator directly, but it requires a `dependentKey` parameter', !(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))));\n    return (0, _metal.computed)(`${dependentKey}.length`, function () {\n      return (0, _metal.isEmpty)((0, _metal.get)(this, dependentKey));\n    });\n  }\n  /**\n    A computed property that returns true if the value of the dependent property\n    is NOT null, an empty string, empty array, or empty function.\n  \n    Example:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { notEmpty } from '@ember/object/computed';\n  \n    class Hamster {\n      constructor(backpack) {\n        set(this, 'backpack', backpack);\n      }\n  \n      @notEmpty('backpack') hasStuff\n    }\n  \n    let hamster = new Hamster(\n      ['Food', 'Sleeping Bag', 'Tent']\n    );\n  \n    hamster.hasStuff; // true\n    set(hamster, 'backpack', []);\n    hamster.hasStuff; // false\n    ```\n  \n    Classic Class Example:\n  \n    ```javascript\n    import EmberObject, { set } from '@ember/object';\n    import { notEmpty } from '@ember/object/computed';\n  \n    let Hamster = EmberObject.extend({\n      hasStuff: notEmpty('backpack')\n    });\n  \n    let hamster = Hamster.create({\n      backpack: ['Food', 'Sleeping Bag', 'Tent']\n    });\n  \n    hamster.hasStuff; // true\n    set(hamster, 'backpack', []);\n    hamster.hasStuff; // false\n    ```\n  \n    @method notEmpty\n    @static\n    @for @ember/object/computed\n    @param {String} dependentKey\n    @return {ComputedProperty} computed property which returns true if original\n    value for property is not empty.\n    @public\n  */\n\n\n  function notEmpty(dependentKey) {\n    (true && !(!(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))) && (0, _debug.assert)('You attempted to use @notEmpty as a decorator directly, but it requires a `dependentKey` parameter', !(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))));\n    return (0, _metal.computed)(`${dependentKey}.length`, function () {\n      return !(0, _metal.isEmpty)((0, _metal.get)(this, dependentKey));\n    });\n  }\n  /**\n    A computed property that returns true if the value of the dependent property\n    is null or undefined. This avoids errors from JSLint complaining about use of\n    ==, which can be technically confusing.\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { none } from '@ember/object/computed';\n  \n    class Hamster {\n      @none('food') isHungry;\n    }\n  \n    let hamster = new Hamster();\n  \n    hamster.isHungry; // true\n  \n    set(hamster, 'food', 'Banana');\n    hamster.isHungry; // false\n  \n    set(hamster, 'food', null);\n    hamster.isHungry; // true\n    ```\n  \n    Classic Class Example:\n  \n    ```javascript\n    import EmberObject, { set } from '@ember/object';\n    import { none } from '@ember/object/computed';\n  \n    let Hamster = EmberObject.extend({\n      isHungry: none('food')\n    });\n  \n    let hamster = Hamster.create();\n  \n    hamster.isHungry; // true\n  \n    set(hamster, 'food', 'Banana');\n    hamster.isHungry; // false\n  \n    set(hamster, 'food', null);\n    hamster.isHungry; // true\n    ```\n  \n    @method none\n    @static\n    @for @ember/object/computed\n    @param {String} dependentKey\n    @return {ComputedProperty} computed property which returns true if original\n    value for property is null or undefined.\n    @public\n  */\n\n\n  function none(dependentKey) {\n    (true && !(!(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))) && (0, _debug.assert)('You attempted to use @none as a decorator directly, but it requires a `dependentKey` parameter', !(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))));\n    return (0, _metal.computed)(dependentKey, function () {\n      return (0, _metal.isNone)((0, _metal.get)(this, dependentKey));\n    });\n  }\n  /**\n    A computed property that returns the inverse boolean value of the original\n    value for the dependent property.\n  \n    Example:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { not } from '@ember/object/computed';\n  \n    class User {\n      loggedIn = false;\n  \n      @not('loggedIn') isAnonymous;\n    }\n  \n    let user = new User();\n  \n    user.isAnonymous; // true\n    set(user, 'loggedIn', true);\n    user.isAnonymous; // false\n    ```\n  \n    Classic Class Example:\n  \n    ```javascript\n    import EmberObject, { set } from '@ember/object';\n    import { not } from '@ember/object/computed';\n  \n    let User = EmberObject.extend({\n      loggedIn: false,\n  \n      isAnonymous: not('loggedIn')\n    });\n  \n    let user = User.create();\n  \n    user.isAnonymous; // true\n    set(user, 'loggedIn', true);\n    user.isAnonymous; // false\n    ```\n  \n    @method not\n    @static\n    @for @ember/object/computed\n    @param {String} dependentKey\n    @return {ComputedProperty} computed property which returns inverse of the\n    original value for property\n    @public\n  */\n\n\n  function not(dependentKey) {\n    (true && !(!(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))) && (0, _debug.assert)('You attempted to use @not as a decorator directly, but it requires a `dependentKey` parameter', !(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))));\n    return (0, _metal.computed)(dependentKey, function () {\n      return !(0, _metal.get)(this, dependentKey);\n    });\n  }\n  /**\n    A computed property that converts the provided dependent property into a\n    boolean value.\n  \n    Example:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { bool } from '@ember/object/computed';\n  \n  \n    class Hamster {\n      @bool('numBananas') hasBananas\n    }\n  \n    let hamster = new Hamster();\n  \n    hamster.hasBananas; // false\n  \n    set(hamster, 'numBananas', 0);\n    hamster.hasBananas; // false\n  \n    set(hamster, 'numBananas', 1);\n    hamster.hasBananas; // true\n  \n    set(hamster, 'numBananas', null);\n    hamster.hasBananas; // false\n    ```\n  \n    Classic Class Example:\n  \n    ```javascript\n    import EmberObject, { set } from '@ember/object';\n    import { bool } from '@ember/object/computed';\n  \n  \n    let Hamster = EmberObject.extend({\n      hasBananas: bool('numBananas')\n    });\n  \n    let hamster = Hamster.create();\n  \n    hamster.hasBananas; // false\n  \n    set(hamster, 'numBananas', 0);\n    hamster.hasBananas; // false\n  \n    set(hamster, 'numBananas', 1);\n    hamster.hasBananas; // true\n  \n    set(hamster, 'numBananas', null);\n    hamster.hasBananas; // false\n    ```\n  \n    @method bool\n    @static\n    @for @ember/object/computed\n    @param {String} dependentKey\n    @return {ComputedProperty} computed property which converts to boolean the\n    original value for property\n    @public\n  */\n\n\n  function bool(dependentKey) {\n    (true && !(!(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))) && (0, _debug.assert)('You attempted to use @bool as a decorator directly, but it requires a `dependentKey` parameter', !(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))));\n    return (0, _metal.computed)(dependentKey, function () {\n      return Boolean((0, _metal.get)(this, dependentKey));\n    });\n  }\n  /**\n    A computed property which matches the original value for the dependent\n    property against a given RegExp, returning `true` if the value matches the\n    RegExp and `false` if it does not.\n  \n    Example:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { match } from '@ember/object/computed';\n  \n    class User {\n      @match('email', /^.+@.+\\..+$/) hasValidEmail;\n    }\n  \n    let user = new User();\n  \n    user.hasValidEmail; // false\n  \n    set(user, 'email', '');\n    user.hasValidEmail; // false\n  \n    set(user, 'email', 'ember_hamster@example.com');\n    user.hasValidEmail; // true\n    ```\n  \n    Classic Class Example:\n  \n    ```javascript\n    import EmberObject, { set } from '@ember/object';\n    import { match } from '@ember/object/computed';\n  \n    let User = EmberObject.extend({\n      hasValidEmail: match('email', /^.+@.+\\..+$/)\n    });\n  \n    let user = User.create();\n  \n    user.hasValidEmail; // false\n  \n    set(user, 'email', '');\n    user.hasValidEmail; // false\n  \n    set(user, 'email', 'ember_hamster@example.com');\n    user.hasValidEmail; // true\n    ```\n  \n    @method match\n    @static\n    @for @ember/object/computed\n    @param {String} dependentKey\n    @param {RegExp} regexp\n    @return {ComputedProperty} computed property which match the original value\n    for property against a given RegExp\n    @public\n  */\n\n\n  function match(dependentKey, regexp) {\n    (true && !(!(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))) && (0, _debug.assert)('You attempted to use @match as a decorator directly, but it requires `dependentKey` and `regexp` parameters', !(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))));\n    return (0, _metal.computed)(dependentKey, function () {\n      var value = (0, _metal.get)(this, dependentKey);\n      return regexp.test(value);\n    });\n  }\n  /**\n    A computed property that returns true if the provided dependent property is\n    equal to the given value.\n  \n    Example:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { equal } from '@ember/object/computed';\n  \n    class Hamster {\n      @equal('percentCarrotsEaten', 100) satisfied;\n    }\n  \n    let hamster = new Hamster();\n  \n    hamster.satisfied; // false\n  \n    set(hamster, 'percentCarrotsEaten', 100);\n    hamster.satisfied; // true\n  \n    set(hamster, 'percentCarrotsEaten', 50);\n    hamster.satisfied; // false\n    ```\n  \n    Classic Class Example:\n  \n    ```javascript\n    import EmberObject, { set } from '@ember/object';\n    import { equal } from '@ember/object/computed';\n  \n    let Hamster = EmberObject.extend({\n      satisfied: equal('percentCarrotsEaten', 100)\n    });\n  \n    let hamster = Hamster.create();\n  \n    hamster.satisfied; // false\n  \n    set(hamster, 'percentCarrotsEaten', 100);\n    hamster.satisfied; // true\n  \n    set(hamster, 'percentCarrotsEaten', 50);\n    hamster.satisfied; // false\n    ```\n  \n    @method equal\n    @static\n    @for @ember/object/computed\n    @param {String} dependentKey\n    @param {String|Number|Object} value\n    @return {ComputedProperty} computed property which returns true if the\n    original value for property is equal to the given value.\n    @public\n  */\n\n\n  function equal(dependentKey, value) {\n    (true && !(!(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))) && (0, _debug.assert)('You attempted to use @equal as a decorator directly, but it requires `dependentKey` and `value` parameter', !(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))));\n    return (0, _metal.computed)(dependentKey, function () {\n      return (0, _metal.get)(this, dependentKey) === value;\n    });\n  }\n  /**\n    A computed property that returns true if the provided dependent property is\n    greater than the provided value.\n  \n    Example:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { gt } from '@ember/object/computed';\n  \n    class Hamster {\n      @gt('numBananas', 10) hasTooManyBananas;\n    }\n  \n    let hamster = new Hamster();\n  \n    hamster.hasTooManyBananas; // false\n  \n    set(hamster, 'numBananas', 3);\n    hamster.hasTooManyBananas; // false\n  \n    set(hamster, 'numBananas', 11);\n    hamster.hasTooManyBananas; // true\n    ```\n  \n    Classic Class Example:\n  \n    ```javascript\n    import EmberObject, { set } from '@ember/object';\n    import { gt } from '@ember/object/computed';\n  \n    let Hamster = EmberObject.extend({\n      hasTooManyBananas: gt('numBananas', 10)\n    });\n  \n    let hamster = Hamster.create();\n  \n    hamster.hasTooManyBananas; // false\n  \n    set(hamster, 'numBananas', 3);\n    hamster.hasTooManyBananas; // false\n  \n    set(hamster, 'numBananas', 11);\n    hamster.hasTooManyBananas; // true\n    ```\n  \n    @method gt\n    @static\n    @for @ember/object/computed\n    @param {String} dependentKey\n    @param {Number} value\n    @return {ComputedProperty} computed property which returns true if the\n    original value for property is greater than given value.\n    @public\n  */\n\n\n  function gt(dependentKey, value) {\n    (true && !(!(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))) && (0, _debug.assert)('You attempted to use @gt as a decorator directly, but it requires `dependentKey` and `value` parameters', !(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))));\n    return (0, _metal.computed)(dependentKey, function () {\n      return (0, _metal.get)(this, dependentKey) > value;\n    });\n  }\n  /**\n    A computed property that returns true if the provided dependent property is\n    greater than or equal to the provided value.\n  \n    Example:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { gte } from '@ember/object/computed';\n  \n    class Hamster {\n      @gte('numBananas', 10) hasTooManyBananas;\n    }\n  \n    let hamster = new Hamster();\n  \n    hamster.hasTooManyBananas; // false\n  \n    set(hamster, 'numBananas', 3);\n    hamster.hasTooManyBananas; // false\n  \n    set(hamster, 'numBananas', 10);\n    hamster.hasTooManyBananas; // true\n    ```\n  \n    Classic Class Example:\n  \n    ```javascript\n    import EmberObject, { set } from '@ember/object';\n    import { gte } from '@ember/object/computed';\n  \n    let Hamster = EmberObject.extend({\n      hasTooManyBananas: gte('numBananas', 10)\n    });\n  \n    let hamster = Hamster.create();\n  \n    hamster.hasTooManyBananas; // false\n  \n    set(hamster, 'numBananas', 3);\n    hamster.hasTooManyBananas; // false\n  \n    set(hamster, 'numBananas', 10);\n    hamster.hasTooManyBananas; // true\n    ```\n  \n    @method gte\n    @static\n    @for @ember/object/computed\n    @param {String} dependentKey\n    @param {Number} value\n    @return {ComputedProperty} computed property which returns true if the\n    original value for property is greater or equal then given value.\n    @public\n  */\n\n\n  function gte(dependentKey, value) {\n    (true && !(!(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))) && (0, _debug.assert)('You attempted to use @gte as a decorator directly, but it requires `dependentKey` and `value` parameters', !(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))));\n    return (0, _metal.computed)(dependentKey, function () {\n      return (0, _metal.get)(this, dependentKey) >= value;\n    });\n  }\n  /**\n    A computed property that returns true if the provided dependent property is\n    less than the provided value.\n  \n    Example:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { lt } from '@ember/object/computed';\n  \n    class Hamster {\n      @lt('numBananas', 3) needsMoreBananas;\n    }\n  \n    let hamster = new Hamster();\n  \n    hamster.needsMoreBananas; // true\n  \n    set(hamster, 'numBananas', 3);\n    hamster.needsMoreBananas; // false\n  \n    set(hamster, 'numBananas', 2);\n    hamster.needsMoreBananas; // true\n    ```\n  \n    Classic Class Example:\n  \n    ```javascript\n    import EmberObject, { set } from '@ember/object';\n    import { lt } from '@ember/object/computed';\n  \n    let Hamster = EmberObject.extend({\n      needsMoreBananas: lt('numBananas', 3)\n    });\n  \n    let hamster = Hamster.create();\n  \n    hamster.needsMoreBananas; // true\n  \n    set(hamster, 'numBananas', 3);\n    hamster.needsMoreBananas; // false\n  \n    set(hamster, 'numBananas', 2);\n    hamster.needsMoreBananas; // true\n    ```\n  \n    @method lt\n    @static\n    @for @ember/object/computed\n    @param {String} dependentKey\n    @param {Number} value\n    @return {ComputedProperty} computed property which returns true if the\n    original value for property is less then given value.\n    @public\n  */\n\n\n  function lt(dependentKey, value) {\n    (true && !(!(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))) && (0, _debug.assert)('You attempted to use @lt as a decorator directly, but it requires `dependentKey` and `value` parameters', !(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))));\n    return (0, _metal.computed)(dependentKey, function () {\n      return (0, _metal.get)(this, dependentKey) < value;\n    });\n  }\n  /**\n    A computed property that returns true if the provided dependent property is\n    less than or equal to the provided value.\n  \n    Example:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { lte } from '@ember/object/computed';\n  \n    class Hamster {\n      @lte('numBananas', 3) needsMoreBananas;\n    }\n  \n    let hamster = new Hamster();\n  \n    hamster.needsMoreBananas; // true\n  \n    set(hamster, 'numBananas', 5);\n    hamster.needsMoreBananas; // false\n  \n    set(hamster, 'numBananas', 3);\n    hamster.needsMoreBananas; // true\n    ```\n  \n    Classic Class Example:\n  \n    ```javascript\n    import EmberObject, { set } from '@ember/object';\n    import { lte } from '@ember/object/computed';\n  \n    let Hamster = EmberObject.extend({\n      needsMoreBananas: lte('numBananas', 3)\n    });\n  \n    let hamster = Hamster.create();\n  \n    hamster.needsMoreBananas; // true\n  \n    set(hamster, 'numBananas', 5);\n    hamster.needsMoreBananas; // false\n  \n    set(hamster, 'numBananas', 3);\n    hamster.needsMoreBananas; // true\n    ```\n  \n    @method lte\n    @static\n    @for @ember/object/computed\n    @param {String} dependentKey\n    @param {Number} value\n    @return {ComputedProperty} computed property which returns true if the\n    original value for property is less or equal than given value.\n    @public\n  */\n\n\n  function lte(dependentKey, value) {\n    (true && !(!(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))) && (0, _debug.assert)('You attempted to use @lte as a decorator directly, but it requires `dependentKey` and `value` parameters', !(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))));\n    return (0, _metal.computed)(dependentKey, function () {\n      return (0, _metal.get)(this, dependentKey) <= value;\n    });\n  }\n  /**\n    A computed property that performs a logical `and` on the original values for\n    the provided dependent properties.\n  \n    You may pass in more than two properties and even use property brace\n    expansion.  The computed property will return the first falsy value or last\n    truthy value just like JavaScript's `&&` operator.\n  \n    Example:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { and } from '@ember/object/computed';\n  \n    class Hamster {\n      @and('hasTent', 'hasBackpack') readyForCamp;\n      @and('hasWalkingStick', 'hasBackpack') readyForHike;\n    }\n  \n    let tomster = new Hamster();\n  \n    tomster.readyForCamp; // false\n  \n    set(tomster, 'hasTent', true);\n    tomster.readyForCamp; // false\n  \n    set(tomster, 'hasBackpack', true);\n    tomster.readyForCamp; // true\n  \n    set(tomster, 'hasBackpack', 'Yes');\n    tomster.readyForCamp; // 'Yes'\n  \n    set(tomster, 'hasWalkingStick', null);\n    tomster.readyForHike; // null\n    ```\n  \n    Classic Class Example:\n  \n    ```javascript\n    import EmberObject, { set } from '@ember/object';\n    import { and } from '@ember/object/computed';\n  \n    let Hamster = EmberObject.extend({\n      readyForCamp: and('hasTent', 'hasBackpack'),\n      readyForHike: and('hasWalkingStick', 'hasBackpack')\n    });\n  \n    let tomster = Hamster.create();\n  \n    tomster.readyForCamp; // false\n  \n    set(tomster, 'hasTent', true);\n    tomster.readyForCamp; // false\n  \n    set(tomster, 'hasBackpack', true);\n    tomster.readyForCamp; // true\n  \n    set(tomster, 'hasBackpack', 'Yes');\n    tomster.readyForCamp; // 'Yes'\n  \n    set(tomster, 'hasWalkingStick', null);\n    tomster.readyForHike; // null\n    ```\n  \n    @method and\n    @static\n    @for @ember/object/computed\n    @param {String} dependentKey*\n    @return {ComputedProperty} computed property which performs a logical `and` on\n    the values of all the original values for properties.\n    @public\n  */\n\n\n  var and = generateComputedWithPredicate('and', value => value);\n  /**\n    A computed property which performs a logical `or` on the original values for\n    the provided dependent properties.\n  \n    You may pass in more than two properties and even use property brace\n    expansion.  The computed property will return the first truthy value or last\n    falsy value just like JavaScript's `||` operator.\n  \n    Example:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { or } from '@ember/object/computed';\n  \n    class Hamster {\n      @or('hasJacket', 'hasUmbrella') readyForRain;\n      @or('hasSunscreen', 'hasUmbrella') readyForBeach;\n    }\n  \n    let tomster = new Hamster();\n  \n    tomster.readyForRain; // undefined\n  \n    set(tomster, 'hasUmbrella', true);\n    tomster.readyForRain; // true\n  \n    set(tomster, 'hasJacket', 'Yes');\n    tomster.readyForRain; // 'Yes'\n  \n    set(tomster, 'hasSunscreen', 'Check');\n    tomster.readyForBeach; // 'Check'\n    ```\n  \n    Classic Class Example:\n  \n    ```javascript\n    import EmberObject, { set } from '@ember/object';\n    import { or } from '@ember/object/computed';\n  \n    let Hamster = EmberObject.extend({\n      readyForRain: or('hasJacket', 'hasUmbrella'),\n      readyForBeach: or('hasSunscreen', 'hasUmbrella')\n    });\n  \n    let tomster = Hamster.create();\n  \n    tomster.readyForRain; // undefined\n  \n    set(tomster, 'hasUmbrella', true);\n    tomster.readyForRain; // true\n  \n    set(tomster, 'hasJacket', 'Yes');\n    tomster.readyForRain; // 'Yes'\n  \n    set(tomster, 'hasSunscreen', 'Check');\n    tomster.readyForBeach; // 'Check'\n    ```\n  \n    @method or\n    @static\n    @for @ember/object/computed\n    @param {String} dependentKey*\n    @return {ComputedProperty} computed property which performs a logical `or` on\n    the values of all the original values for properties.\n    @public\n  */\n\n  _exports.and = and;\n  var or = generateComputedWithPredicate('or', value => !value);\n  /**\n    Creates a new property that is an alias for another property on an object.\n    Calls to `get` or `set` this property behave as though they were called on the\n    original property.\n  \n    Example:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { alias } from '@ember/object/computed';\n  \n    class Person {\n      name = 'Alex Matchneer';\n  \n      @alias('name') nomen;\n    }\n  \n    let alex = new Person();\n  \n    alex.nomen; // 'Alex Matchneer'\n    alex.name;  // 'Alex Matchneer'\n  \n    set(alex, 'nomen', '@machty');\n    alex.name;  // '@machty'\n    ```\n  \n    Classic Class Example:\n  \n    ```javascript\n    import EmberObject, { set } from '@ember/object';\n    import { alias } from '@ember/object/computed';\n  \n    let Person = EmberObject.extend({\n      name: 'Alex Matchneer',\n  \n      nomen: alias('name')\n    });\n  \n    let alex = Person.create();\n  \n    alex.nomen; // 'Alex Matchneer'\n    alex.name;  // 'Alex Matchneer'\n  \n    set(alex, 'nomen', '@machty');\n    alex.name;  // '@machty'\n    ```\n  \n    @method alias\n    @static\n    @for @ember/object/computed\n    @param {String} dependentKey\n    @return {ComputedProperty} computed property which creates an alias to the\n    original value for property.\n    @public\n  */\n\n  /**\n    Where `computed.alias` aliases `get` and `set`, and allows for bidirectional\n    data flow, `computed.oneWay` only provides an aliased `get`. The `set` will\n    not mutate the upstream property, rather causes the current property to become\n    the value set. This causes the downstream property to permanently diverge from\n    the upstream property.\n  \n    Example:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { oneWay }from '@ember/object/computed';\n  \n    class User {\n      constructor(firstName, lastName) {\n        set(this, 'firstName', firstName);\n        set(this, 'lastName', lastName);\n      }\n  \n      @oneWay('firstName') nickName;\n    }\n  \n    let teddy = new User('Teddy', 'Zeenny');\n  \n    teddy.nickName; // 'Teddy'\n  \n    set(teddy, 'nickName', 'TeddyBear');\n    teddy.firstName; // 'Teddy'\n    teddy.nickName; // 'TeddyBear'\n    ```\n  \n    Classic Class Example:\n  \n    ```javascript\n    import EmberObject, { set } from '@ember/object';\n    import { oneWay } from '@ember/object/computed';\n  \n    let User = EmberObject.extend({\n      firstName: null,\n      lastName: null,\n  \n      nickName: oneWay('firstName')\n    });\n  \n    let teddy = User.create({\n      firstName: 'Teddy',\n      lastName: 'Zeenny'\n    });\n  \n    teddy.nickName; // 'Teddy'\n  \n    set(teddy, 'nickName', 'TeddyBear'); // 'TeddyBear'\n    teddy.firstName; // 'Teddy'\n    teddy.nickName; // 'TeddyBear'\n    ```\n  \n    @method oneWay\n    @static\n    @for @ember/object/computed\n    @param {String} dependentKey\n    @return {ComputedProperty} computed property which creates a one way computed\n    property to the original value for property.\n    @public\n  */\n\n  _exports.or = or;\n\n  function oneWay(dependentKey) {\n    (true && !(!(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))) && (0, _debug.assert)('You attempted to use @oneWay as a decorator directly, but it requires a `dependentKey` parameter', !(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))));\n    return (0, _metal.alias)(dependentKey).oneWay();\n  }\n  /**\n    This is a more semantically meaningful alias of `computed.oneWay`, whose name\n    is somewhat ambiguous as to which direction the data flows.\n  \n    @method reads\n    @static\n    @for @ember/object/computed\n    @param {String} dependentKey\n    @return {ComputedProperty} computed property which creates a one way computed\n      property to the original value for property.\n    @public\n   */\n\n  /**\n    Where `computed.oneWay` provides oneWay bindings, `computed.readOnly` provides\n    a readOnly one way binding. Very often when using `computed.oneWay` one does\n    not also want changes to propagate back up, as they will replace the value.\n  \n    This prevents the reverse flow, and also throws an exception when it occurs.\n  \n    Example:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { readOnly } from '@ember/object/computed';\n  \n    class User {\n      constructor(firstName, lastName) {\n        set(this, 'firstName', firstName);\n        set(this, 'lastName', lastName);\n      }\n  \n      @readOnly('firstName') nickName;\n    });\n  \n    let teddy = new User('Teddy', 'Zeenny');\n  \n    teddy.nickName; // 'Teddy'\n  \n    set(teddy, 'nickName', 'TeddyBear'); // throws Exception\n    // throw new EmberError('Cannot Set: nickName on: <User:ember27288>' );`\n  \n    teddy.firstName; // 'Teddy'\n    ```\n  \n    Classic Class Example:\n  \n    ```javascript\n    import EmberObject, { set } from '@ember/object';\n    import { readOnly } from '@ember/object/computed';\n  \n    let User = EmberObject.extend({\n      firstName: null,\n      lastName: null,\n  \n      nickName: readOnly('firstName')\n    });\n  \n    let teddy = User.create({\n      firstName: 'Teddy',\n      lastName:  'Zeenny'\n    });\n  \n    teddy.nickName; // 'Teddy'\n  \n    set(teddy, 'nickName', 'TeddyBear'); // throws Exception\n    // throw new EmberError('Cannot Set: nickName on: <User:ember27288>' );`\n  \n    teddy.firstName; // 'Teddy'\n    ```\n  \n    @method readOnly\n    @static\n    @for @ember/object/computed\n    @param {String} dependentKey\n    @return {ComputedProperty} computed property which creates a one way computed\n    property to the original value for property.\n    @since 1.5.0\n    @public\n  */\n\n\n  function readOnly(dependentKey) {\n    (true && !(!(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))) && (0, _debug.assert)('You attempted to use @readOnly as a decorator directly, but it requires a `dependentKey` parameter', !(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))));\n    return (0, _metal.alias)(dependentKey).readOnly();\n  }\n  /**\n    Creates a new property that is an alias for another property on an object.\n    Calls to `get` or `set` this property behave as though they were called on the\n    original property, but also print a deprecation warning.\n  \n    Example:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { deprecatingAlias } from '@ember/object/computed';\n  \n    class Hamster {\n      @deprecatingAlias('cavendishCount', {\n        id: 'hamster.deprecate-banana',\n        until: '3.0.0'\n      })\n      bananaCount;\n    }\n  \n    let hamster = new Hamster();\n  \n    set(hamster, 'bananaCount', 5); // Prints a deprecation warning.\n    hamster.cavendishCount; // 5\n    ```\n  \n    Classic Class Example:\n  \n    ```javascript\n    import EmberObject, { set } from '@ember/object';\n    import { deprecatingAlias } from '@ember/object/computed';\n  \n    let Hamster = EmberObject.extend({\n      bananaCount: deprecatingAlias('cavendishCount', {\n        id: 'hamster.deprecate-banana',\n        until: '3.0.0'\n      })\n    });\n  \n    let hamster = Hamster.create();\n  \n    set(hamster, 'bananaCount', 5); // Prints a deprecation warning.\n    hamster.cavendishCount; // 5\n    ```\n  \n    @method deprecatingAlias\n    @static\n    @for @ember/object/computed\n    @param {String} dependentKey\n    @param {Object} options Options for `deprecate`.\n    @return {ComputedProperty} computed property which creates an alias with a\n    deprecation to the original value for property.\n    @since 1.7.0\n    @public\n  */\n\n\n  function deprecatingAlias(dependentKey, options) {\n    (true && !(!(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))) && (0, _debug.assert)('You attempted to use @deprecatingAlias as a decorator directly, but it requires `dependentKey` and `options` parameters', !(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))));\n    return (0, _metal.computed)(dependentKey, {\n      get(key) {\n        (true && !(false) && (0, _debug.deprecate)(`Usage of \\`${key}\\` is deprecated, use \\`${dependentKey}\\` instead.`, false, options));\n        return (0, _metal.get)(this, dependentKey);\n      },\n\n      set(key, value) {\n        (true && !(false) && (0, _debug.deprecate)(`Usage of \\`${key}\\` is deprecated, use \\`${dependentKey}\\` instead.`, false, options));\n        (0, _metal.set)(this, dependentKey, value);\n        return value;\n      }\n\n    });\n  }\n});","define(\"@ember/object/lib/computed/reduce_computed_macros\", [\"exports\", \"@ember/debug\", \"@ember/-internals/metal\", \"@ember/-internals/runtime\"], function (_exports, _debug, _metal, _runtime) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.sum = sum;\n  _exports.max = max;\n  _exports.min = min;\n  _exports.map = map;\n  _exports.mapBy = mapBy;\n  _exports.filter = filter;\n  _exports.filterBy = filterBy;\n  _exports.uniq = uniq;\n  _exports.uniqBy = uniqBy;\n  _exports.intersect = intersect;\n  _exports.setDiff = setDiff;\n  _exports.collect = collect;\n  _exports.sort = sort;\n  _exports.union = void 0;\n\n  /**\n  @module @ember/object\n  */\n  function reduceMacro(dependentKey, callback, initialValue, name) {\n    (true && !(!/[\\[\\]\\{\\}]/g.test(dependentKey)) && (0, _debug.assert)(`Dependent key passed to \\`computed.${name}\\` shouldn't contain brace expanding pattern.`, !/[\\[\\]\\{\\}]/g.test(dependentKey)));\n    return (0, _metal.computed)(`${dependentKey}.[]`, function () {\n      var arr = (0, _metal.get)(this, dependentKey);\n\n      if (arr === null || typeof arr !== 'object') {\n        return initialValue;\n      }\n\n      return arr.reduce(callback, initialValue, this);\n    }).readOnly();\n  }\n\n  function arrayMacro(dependentKey, additionalDependentKeys, callback) {\n    // This is a bit ugly\n    var propertyName;\n\n    if (/@each/.test(dependentKey)) {\n      propertyName = dependentKey.replace(/\\.@each.*$/, '');\n    } else {\n      propertyName = dependentKey;\n      dependentKey += '.[]';\n    }\n\n    return (0, _metal.computed)(dependentKey, ...additionalDependentKeys, function () {\n      var value = (0, _metal.get)(this, propertyName);\n\n      if ((0, _runtime.isArray)(value)) {\n        return (0, _runtime.A)(callback.call(this, value));\n      } else {\n        return (0, _runtime.A)();\n      }\n    }).readOnly();\n  }\n\n  function multiArrayMacro(_dependentKeys, callback, name) {\n    (true && !(_dependentKeys.every(dependentKey => !/[\\[\\]\\{\\}]/g.test(dependentKey))) && (0, _debug.assert)(`Dependent keys passed to \\`computed.${name}\\` shouldn't contain brace expanding pattern.`, _dependentKeys.every(dependentKey => !/[\\[\\]\\{\\}]/g.test(dependentKey))));\n\n    var dependentKeys = _dependentKeys.map(key => `${key}.[]`);\n\n    return (0, _metal.computed)(...dependentKeys, function () {\n      return (0, _runtime.A)(callback.call(this, _dependentKeys));\n    }).readOnly();\n  }\n  /**\n    A computed property that returns the sum of the values in the dependent array.\n  \n    Example:\n  \n    ```javascript\n    import { sum } from '@ember/object/computed';\n  \n    class Invoice {\n      lineItems = [1.00, 2.50, 9.99];\n  \n      @sum('lineItems') total;\n    }\n  \n    let invoice = new Invoice();\n  \n    invoice.total; // 13.49\n    ```\n  \n    Classic Class Example:\n  \n    ```javascript\n    import EmberObject from '@ember/object';\n    import { sum } from '@ember/object/computed';\n  \n    let Invoice = EmberObject.extend({\n      lineItems: [1.00, 2.50, 9.99],\n  \n      total: sum('lineItems')\n    })\n  \n    let invoice = Invoice.create();\n  \n    invoice.total; // 13.49\n    ```\n  \n    @method sum\n    @for @ember/object/computed\n    @static\n    @param {String} dependentKey\n    @return {ComputedProperty} computes the sum of all values in the\n    dependentKey's array\n    @since 1.4.0\n    @public\n  */\n\n\n  function sum(dependentKey) {\n    (true && !(!(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))) && (0, _debug.assert)('You attempted to use @sum as a decorator directly, but it requires a `dependentKey` parameter', !(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))));\n    return reduceMacro(dependentKey, (sum, item) => sum + item, 0, 'sum');\n  }\n  /**\n    A computed property that calculates the maximum value in the dependent array.\n    This will return `-Infinity` when the dependent array is empty.\n  \n    Example:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { mapBy, max } from '@ember/object/computed';\n  \n    class Person {\n      children = [];\n  \n      @mapBy('children', 'age') childAges;\n      @max('childAges') maxChildAge;\n    }\n  \n    let lordByron = new Person();\n  \n    lordByron.maxChildAge; // -Infinity\n  \n    set(lordByron, 'children', [\n      {\n        name: 'Augusta Ada Byron',\n        age: 7\n      }\n    ]);\n    lordByron.maxChildAge; // 7\n  \n    set(lordByron, 'children', [\n      ...lordByron.children,\n      {\n        name: 'Allegra Byron',\n        age: 5\n      }, {\n        name: 'Elizabeth Medora Leigh',\n        age: 8\n      }\n    ]);\n    lordByron.maxChildAge; // 8\n    ```\n  \n    Classic Class Example:\n  \n    ```javascript\n    import EmberObject, { set } from '@ember/object';\n    import { mapBy, max } from '@ember/object/computed';\n  \n    let Person = EmberObject.extend({\n      childAges: mapBy('children', 'age'),\n      maxChildAge: max('childAges')\n    });\n  \n    let lordByron = Person.create({ children: [] });\n  \n    lordByron.maxChildAge; // -Infinity\n  \n    set(lordByron, 'children', [\n      {\n        name: 'Augusta Ada Byron',\n        age: 7\n      }\n    ]);\n    lordByron.maxChildAge; // 7\n  \n    set(lordByron, 'children', [\n      ...lordByron.children,\n      {\n        name: 'Allegra Byron',\n        age: 5\n      }, {\n        name: 'Elizabeth Medora Leigh',\n        age: 8\n      }\n    ]);\n    lordByron.maxChildAge; // 8\n    ```\n  \n    If the types of the arguments are not numbers, they will be converted to\n    numbers and the type of the return value will always be `Number`. For example,\n    the max of a list of Date objects will be the highest timestamp as a `Number`.\n    This behavior is consistent with `Math.max`.\n  \n    @method max\n    @for @ember/object/computed\n    @static\n    @param {String} dependentKey\n    @return {ComputedProperty} computes the largest value in the dependentKey's\n    array\n    @public\n  */\n\n\n  function max(dependentKey) {\n    (true && !(!(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))) && (0, _debug.assert)('You attempted to use @max as a decorator directly, but it requires a `dependentKey` parameter', !(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))));\n    return reduceMacro(dependentKey, (max, item) => Math.max(max, item), -Infinity, 'max');\n  }\n  /**\n    A computed property that calculates the minimum value in the dependent array.\n    This will return `Infinity` when the dependent array is empty.\n  \n    Example:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { mapBy, min } from '@ember/object/computed';\n  \n    class Person {\n      children = [];\n  \n      @mapBy('children', 'age') childAges;\n      @min('childAges') minChildAge;\n    }\n  \n    let lordByron = Person.create({ children: [] });\n  \n    lordByron.minChildAge; // Infinity\n  \n    set(lordByron, 'children', [\n      {\n        name: 'Augusta Ada Byron',\n        age: 7\n      }\n    ]);\n    lordByron.minChildAge; // 7\n  \n    set(lordByron, 'children', [\n      ...lordByron.children,\n      {\n        name: 'Allegra Byron',\n        age: 5\n      }, {\n        name: 'Elizabeth Medora Leigh',\n        age: 8\n      }\n    ]);\n    lordByron.minChildAge; // 5\n    ```\n  \n    Classic Class Example:\n  \n    ```javascript\n    import EmberObject, { set } from '@ember/object';\n    import { mapBy, min } from '@ember/object/computed';\n  \n    let Person = EmberObject.extend({\n      childAges: mapBy('children', 'age'),\n      minChildAge: min('childAges')\n    });\n  \n    let lordByron = Person.create({ children: [] });\n  \n    lordByron.minChildAge; // Infinity\n  \n    set(lordByron, 'children', [\n      {\n        name: 'Augusta Ada Byron',\n        age: 7\n      }\n    ]);\n    lordByron.minChildAge; // 7\n  \n    set(lordByron, 'children', [\n      ...lordByron.children,\n      {\n        name: 'Allegra Byron',\n        age: 5\n      }, {\n        name: 'Elizabeth Medora Leigh',\n        age: 8\n      }\n    ]);\n    lordByron.minChildAge; // 5\n    ```\n  \n    If the types of the arguments are not numbers, they will be converted to\n    numbers and the type of the return value will always be `Number`. For example,\n    the min of a list of Date objects will be the lowest timestamp as a `Number`.\n    This behavior is consistent with `Math.min`.\n  \n    @method min\n    @for @ember/object/computed\n    @static\n    @param {String} dependentKey\n    @return {ComputedProperty} computes the smallest value in the dependentKey's array\n    @public\n  */\n\n\n  function min(dependentKey) {\n    (true && !(!(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))) && (0, _debug.assert)('You attempted to use @min as a decorator directly, but it requires a `dependentKey` parameter', !(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))));\n    return reduceMacro(dependentKey, (min, item) => Math.min(min, item), Infinity, 'min');\n  }\n  /**\n    Returns an array mapped via the callback\n  \n    The callback method you provide should have the following signature:\n    - `item` is the current item in the iteration.\n    - `index` is the integer index of the current item in the iteration.\n  \n    ```javascript\n    function mapCallback(item, index);\n    ```\n  \n    Example:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { map } from '@ember/object/computed';\n  \n    class Hamster {\n      constructor(chores) {\n        set(this, 'chores', chores);\n      }\n  \n      @map('chores', function(chore, index) {\n        return `${chore.toUpperCase()}!`;\n      })\n      excitingChores;\n    });\n  \n    let hamster = new Hamster(['clean', 'write more unit tests']);\n  \n    hamster.excitingChores; // ['CLEAN!', 'WRITE MORE UNIT TESTS!']\n    ```\n  \n    Classic Class Example:\n  \n    ```javascript\n    import EmberObject from '@ember/object';\n    import { map } from '@ember/object/computed';\n  \n    let Hamster = EmberObject.extend({\n      excitingChores: map('chores', function(chore, index) {\n        return `${chore.toUpperCase()}!`;\n      })\n    });\n  \n    let hamster = Hamster.create({\n      chores: ['clean', 'write more unit tests']\n    });\n  \n    hamster.excitingChores; // ['CLEAN!', 'WRITE MORE UNIT TESTS!']\n    ```\n  \n    You can optionally pass an array of additional dependent keys as the second\n    parameter to the macro, if your map function relies on any external values:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { map } from '@ember/object/computed';\n  \n    class Hamster {\n      shouldUpperCase = false;\n  \n      constructor(chores) {\n        set(this, 'chores', chores);\n      }\n  \n      @map('chores', ['shouldUpperCase'], function(chore, index) {\n        if (this.shouldUpperCase) {\n          return `${chore.toUpperCase()}!`;\n        } else {\n          return `${chore}!`;\n        }\n      })\n      excitingChores;\n    }\n  \n    let hamster = new Hamster(['clean', 'write more unit tests']);\n  \n    hamster.excitingChores; // ['clean!', 'write more unit tests!']\n  \n    set(hamster, 'shouldUpperCase', true);\n    hamster.excitingChores; // ['CLEAN!', 'WRITE MORE UNIT TESTS!']\n    ```\n  \n    @method map\n    @for @ember/object/computed\n    @static\n    @param {String} dependentKey\n    @param {Array} [additionalDependentKeys] optional array of additional\n    dependent keys\n    @param {Function} callback\n    @return {ComputedProperty} an array mapped via the callback\n    @public\n  */\n\n\n  function map(dependentKey, additionalDependentKeys, callback) {\n    (true && !(!(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))) && (0, _debug.assert)('You attempted to use @map as a decorator directly, but it requires atleast `dependentKey` and `callback` parameters', !(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))));\n\n    if (callback === undefined && typeof additionalDependentKeys === 'function') {\n      callback = additionalDependentKeys;\n      additionalDependentKeys = [];\n    }\n\n    (true && !(typeof callback === 'function') && (0, _debug.assert)('The final parameter provided to map must be a callback function', typeof callback === 'function'));\n    (true && !(Array.isArray(additionalDependentKeys)) && (0, _debug.assert)('The second parameter provided to map must either be the callback or an array of additional dependent keys', Array.isArray(additionalDependentKeys)));\n    return arrayMacro(dependentKey, additionalDependentKeys, function (value) {\n      return value.map(callback, this);\n    });\n  }\n  /**\n    Returns an array mapped to the specified key.\n  \n    Example:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { mapBy } from '@ember/object/computed';\n  \n    class Person {\n      children = [];\n  \n      @mapBy('children', 'age') childAges;\n    }\n  \n    let lordByron = new Person();\n  \n    lordByron.childAges; // []\n  \n    set(lordByron, 'children', [\n      {\n        name: 'Augusta Ada Byron',\n        age: 7\n      }\n    ]);\n    lordByron.childAges; // [7]\n  \n    set(lordByron, 'children', [\n      ...lordByron.children,\n      {\n        name: 'Allegra Byron',\n        age: 5\n      }, {\n        name: 'Elizabeth Medora Leigh',\n        age: 8\n      }\n    ]);\n    lordByron.childAges; // [7, 5, 8]\n    ```\n  \n    Classic Class Example:\n  \n    ```javascript\n    import EmberObject, { set } from '@ember/object';\n    import { mapBy } from '@ember/object/computed';\n  \n    let Person = EmberObject.extend({\n      childAges: mapBy('children', 'age')\n    });\n  \n    let lordByron = Person.create({ children: [] });\n  \n    lordByron.childAges; // []\n  \n    set(lordByron, 'children', [\n      {\n        name: 'Augusta Ada Byron',\n        age: 7\n      }\n    ]);\n    lordByron.childAges; // [7]\n  \n    set(lordByron, 'children', [\n      ...lordByron.children,\n      {\n        name: 'Allegra Byron',\n        age: 5\n      }, {\n        name: 'Elizabeth Medora Leigh',\n        age: 8\n      }\n    ]);\n    lordByron.childAges; // [7, 5, 8]\n    ```\n  \n    @method mapBy\n    @for @ember/object/computed\n    @static\n    @param {String} dependentKey\n    @param {String} propertyKey\n    @return {ComputedProperty} an array mapped to the specified key\n    @public\n  */\n\n\n  function mapBy(dependentKey, propertyKey) {\n    (true && !(!(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))) && (0, _debug.assert)('You attempted to use @mapBy as a decorator directly, but it requires `dependentKey` and `propertyKey` parameters', !(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))));\n    (true && !(typeof propertyKey === 'string') && (0, _debug.assert)('`computed.mapBy` expects a property string for its second argument, ' + 'perhaps you meant to use \"map\"', typeof propertyKey === 'string'));\n    (true && !(!/[\\[\\]\\{\\}]/g.test(dependentKey)) && (0, _debug.assert)(`Dependent key passed to \\`computed.mapBy\\` shouldn't contain brace expanding pattern.`, !/[\\[\\]\\{\\}]/g.test(dependentKey)));\n    return map(`${dependentKey}.@each.${propertyKey}`, item => (0, _metal.get)(item, propertyKey));\n  }\n  /**\n    Filters the array by the callback.\n  \n    The callback method you provide should have the following signature:\n    - `item` is the current item in the iteration.\n    - `index` is the integer index of the current item in the iteration.\n    - `array` is the dependant array itself.\n  \n    ```javascript\n    function filterCallback(item, index, array);\n    ```\n  \n    Example:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { filter } from '@ember/object/computed';\n  \n    class Hamster {\n      constructor(chores) {\n        set(this, 'chores', chores);\n      }\n  \n      @filter('chores', function(chore, index, array) {\n        return !chore.done;\n      })\n      remainingChores;\n    }\n  \n    let hamster = Hamster.create([\n      { name: 'cook', done: true },\n      { name: 'clean', done: true },\n      { name: 'write more unit tests', done: false }\n    ]);\n  \n    hamster.remainingChores; // [{name: 'write more unit tests', done: false}]\n    ```\n  \n    Classic Class Example:\n  \n    ```javascript\n    import EmberObject from '@ember/object';\n    import { filter } from '@ember/object/computed';\n  \n    let Hamster = EmberObject.extend({\n      remainingChores: filter('chores', function(chore, index, array) {\n        return !chore.done;\n      })\n    });\n  \n    let hamster = Hamster.create({\n      chores: [\n        { name: 'cook', done: true },\n        { name: 'clean', done: true },\n        { name: 'write more unit tests', done: false }\n      ]\n    });\n  \n    hamster.remainingChores; // [{name: 'write more unit tests', done: false}]\n    ```\n  \n    You can also use `@each.property` in your dependent key, the callback will\n    still use the underlying array:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { filter } from '@ember/object/computed';\n  \n    class Hamster {\n      constructor(chores) {\n        set(this, 'chores', chores);\n      }\n  \n      @filter('chores.@each.done', function(chore, index, array) {\n        return !chore.done;\n      })\n      remainingChores;\n    }\n  \n    let hamster = new Hamster([\n      { name: 'cook', done: true },\n      { name: 'clean', done: true },\n      { name: 'write more unit tests', done: false }\n    ]);\n    hamster.remainingChores; // [{name: 'write more unit tests', done: false}]\n  \n    set(hamster.chores[2], 'done', true);\n    hamster.remainingChores; // []\n    ```\n  \n    Finally, you can optionally pass an array of additional dependent keys as the\n    second parameter to the macro, if your filter function relies on any external\n    values:\n  \n    ```javascript\n    import { filter } from '@ember/object/computed';\n  \n    class Hamster {\n      constructor(chores) {\n        set(this, 'chores', chores);\n      }\n  \n      doneKey = 'finished';\n  \n      @filter('chores', ['doneKey'], function(chore, index, array) {\n        return !chore[this.doneKey];\n      })\n      remainingChores;\n    }\n  \n    let hamster = new Hamster([\n      { name: 'cook', finished: true },\n      { name: 'clean', finished: true },\n      { name: 'write more unit tests', finished: false }\n    ]);\n  \n    hamster.remainingChores; // [{name: 'write more unit tests', finished: false}]\n    ```\n  \n    @method filter\n    @for @ember/object/computed\n    @static\n    @param {String} dependentKey\n    @param {Array} [additionalDependentKeys] optional array of additional dependent keys\n    @param {Function} callback\n    @return {ComputedProperty} the filtered array\n    @public\n  */\n\n\n  function filter(dependentKey, additionalDependentKeys, callback) {\n    (true && !(!(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))) && (0, _debug.assert)('You attempted to use @filter as a decorator directly, but it requires atleast `dependentKey` and `callback` parameters', !(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))));\n\n    if (callback === undefined && typeof additionalDependentKeys === 'function') {\n      callback = additionalDependentKeys;\n      additionalDependentKeys = [];\n    }\n\n    (true && !(typeof callback === 'function') && (0, _debug.assert)('The final parameter provided to filter must be a callback function', typeof callback === 'function'));\n    (true && !(Array.isArray(additionalDependentKeys)) && (0, _debug.assert)('The second parameter provided to filter must either be the callback or an array of additional dependent keys', Array.isArray(additionalDependentKeys)));\n    return arrayMacro(dependentKey, additionalDependentKeys, function (value) {\n      return value.filter(callback, this);\n    });\n  }\n  /**\n    Filters the array by the property and value.\n  \n    Example:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { filterBy } from '@ember/object/computed';\n  \n    class Hamster {\n      constructor(chores) {\n        set(this, 'chores', chores);\n      }\n  \n      @filterBy('chores', 'done', false) remainingChores;\n    }\n  \n    let hamster = new Hamster([\n      { name: 'cook', done: true },\n      { name: 'clean', done: true },\n      { name: 'write more unit tests', done: false }\n    ]);\n  \n    hamster.remainingChores; // [{ name: 'write more unit tests', done: false }]\n    ```\n  \n    Classic Class Example:\n  \n    ```javascript\n    import EmberObject from '@ember/object';\n    import { filterBy } from '@ember/object/computed';\n  \n    let Hamster = EmberObject.extend({\n      remainingChores: filterBy('chores', 'done', false)\n    });\n  \n    let hamster = Hamster.create({\n      chores: [\n        { name: 'cook', done: true },\n        { name: 'clean', done: true },\n        { name: 'write more unit tests', done: false }\n      ]\n    });\n  \n    hamster.remainingChores; // [{ name: 'write more unit tests', done: false }]\n    ```\n  \n    @method filterBy\n    @for @ember/object/computed\n    @static\n    @param {String} dependentKey\n    @param {String} propertyKey\n    @param {*} value\n    @return {ComputedProperty} the filtered array\n    @public\n  */\n\n\n  function filterBy(dependentKey, propertyKey, value) {\n    (true && !(!(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))) && (0, _debug.assert)('You attempted to use @filterBy as a decorator directly, but it requires atleast `dependentKey` and `propertyKey` parameters', !(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))));\n    (true && !(!/[\\[\\]\\{\\}]/g.test(dependentKey)) && (0, _debug.assert)(`Dependent key passed to \\`computed.filterBy\\` shouldn't contain brace expanding pattern.`, !/[\\[\\]\\{\\}]/g.test(dependentKey)));\n    var callback;\n\n    if (arguments.length === 2) {\n      callback = item => (0, _metal.get)(item, propertyKey);\n    } else {\n      callback = item => (0, _metal.get)(item, propertyKey) === value;\n    }\n\n    return filter(`${dependentKey}.@each.${propertyKey}`, callback);\n  }\n  /**\n    A computed property which returns a new array with all the unique elements\n    from one or more dependent arrays.\n  \n    Example:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { uniq } from '@ember/object/computed';\n  \n    class Hamster {\n      constructor(fruits) {\n        set(this, 'fruits', fruits);\n      }\n  \n      @uniq('fruits') uniqueFruits;\n    }\n  \n    let hamster = new Hamster([\n      'banana',\n      'grape',\n      'kale',\n      'banana'\n    ]);\n  \n    hamster.uniqueFruits; // ['banana', 'grape', 'kale']\n    ```\n  \n    Classic Class Example:\n  \n    ```javascript\n    import EmberObject from '@ember/object';\n    import { uniq } from '@ember/object/computed';\n  \n    let Hamster = EmberObject.extend({\n      uniqueFruits: uniq('fruits')\n    });\n  \n    let hamster = Hamster.create({\n      fruits: [\n        'banana',\n        'grape',\n        'kale',\n        'banana'\n      ]\n    });\n  \n    hamster.uniqueFruits; // ['banana', 'grape', 'kale']\n    ```\n  \n    @method uniq\n    @for @ember/object/computed\n    @static\n    @param {String} propertyKey*\n    @return {ComputedProperty} computes a new array with all the\n    unique elements from the dependent array\n    @public\n  */\n\n\n  function uniq(...args) {\n    (true && !(!(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))) && (0, _debug.assert)('You attempted to use @uniq/@union as a decorator directly, but it requires atleast one dependent key parameter', !(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))));\n    return multiArrayMacro(args, function (dependentKeys) {\n      var uniq = (0, _runtime.A)();\n      var seen = new Set();\n      dependentKeys.forEach(dependentKey => {\n        var value = (0, _metal.get)(this, dependentKey);\n\n        if ((0, _runtime.isArray)(value)) {\n          value.forEach(item => {\n            if (!seen.has(item)) {\n              seen.add(item);\n              uniq.push(item);\n            }\n          });\n        }\n      });\n      return uniq;\n    }, 'uniq');\n  }\n  /**\n    A computed property which returns a new array with all the unique elements\n    from an array, with uniqueness determined by specific key.\n  \n    Example:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { uniqBy } from '@ember/object/computed';\n  \n    class Hamster {\n      constructor(fruits) {\n        set(this, 'fruits', fruits);\n      }\n  \n      @uniqBy('fruits', 'id') uniqueFruits;\n    }\n  \n    let hamster = new Hamster([\n      { id: 1, 'banana' },\n      { id: 2, 'grape' },\n      { id: 3, 'peach' },\n      { id: 1, 'banana' }\n    ]);\n  \n    hamster.uniqueFruits; // [ { id: 1, 'banana' }, { id: 2, 'grape' }, { id: 3, 'peach' }]\n    ```\n  \n    Classic Class Example:\n  \n    ```javascript\n    import EmberObject from '@ember/object';\n    import { uniqBy } from '@ember/object/computed';\n  \n    let Hamster = EmberObject.extend({\n      uniqueFruits: uniqBy('fruits', 'id')\n    });\n  \n    let hamster = Hamster.create({\n      fruits: [\n        { id: 1, 'banana' },\n        { id: 2, 'grape' },\n        { id: 3, 'peach' },\n        { id: 1, 'banana' }\n      ]\n    });\n  \n    hamster.uniqueFruits; // [ { id: 1, 'banana' }, { id: 2, 'grape' }, { id: 3, 'peach' }]\n    ```\n  \n    @method uniqBy\n    @for @ember/object/computed\n    @static\n    @param {String} dependentKey\n    @param {String} propertyKey\n    @return {ComputedProperty} computes a new array with all the\n    unique elements from the dependent array\n    @public\n  */\n\n\n  function uniqBy(dependentKey, propertyKey) {\n    (true && !(!(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))) && (0, _debug.assert)('You attempted to use @uniqBy as a decorator directly, but it requires `dependentKey` and `propertyKey` parameters', !(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))));\n    (true && !(!/[\\[\\]\\{\\}]/g.test(dependentKey)) && (0, _debug.assert)(`Dependent key passed to \\`computed.uniqBy\\` shouldn't contain brace expanding pattern.`, !/[\\[\\]\\{\\}]/g.test(dependentKey)));\n    return (0, _metal.computed)(`${dependentKey}.[]`, function () {\n      var list = (0, _metal.get)(this, dependentKey);\n      return (0, _runtime.isArray)(list) ? (0, _runtime.uniqBy)(list, propertyKey) : (0, _runtime.A)();\n    }).readOnly();\n  }\n  /**\n    A computed property which returns a new array with all the unique elements\n    from one or more dependent arrays.\n  \n    Example:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { union } from '@ember/object/computed';\n  \n    class Hamster {\n      constructor(fruits, vegetables) {\n        set(this, 'fruits', fruits);\n        set(this, 'vegetables', vegetables);\n      }\n  \n      @union('fruits', 'vegetables') ediblePlants;\n    });\n  \n    let hamster = new, Hamster(\n      [\n        'banana',\n        'grape',\n        'kale',\n        'banana',\n        'tomato'\n      ],\n      [\n        'tomato',\n        'carrot',\n        'lettuce'\n      ]\n    );\n  \n    hamster.uniqueFruits; // ['banana', 'grape', 'kale', 'tomato', 'carrot', 'lettuce']\n    ```\n  \n    Classic Class Example:\n  \n    ```javascript\n    import EmberObject from '@ember/object';\n    import { union } from '@ember/object/computed';\n  \n    let Hamster = EmberObject.extend({\n      uniqueFruits: union('fruits', 'vegetables')\n    });\n  \n    let hamster = Hamster.create({\n      fruits: [\n        'banana',\n        'grape',\n        'kale',\n        'banana',\n        'tomato'\n      ],\n      vegetables: [\n        'tomato',\n        'carrot',\n        'lettuce'\n      ]\n    });\n  \n    hamster.uniqueFruits; // ['banana', 'grape', 'kale', 'tomato', 'carrot', 'lettuce']\n    ```\n  \n    @method union\n    @for @ember/object/computed\n    @static\n    @param {String} propertyKey*\n    @return {ComputedProperty} computes a new array with all the unique elements\n    from one or more dependent arrays.\n    @public\n  */\n\n\n  var union = uniq;\n  /**\n    A computed property which returns a new array with all the elements\n    two or more dependent arrays have in common.\n  \n    Example:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { intersect } from '@ember/object/computed';\n  \n    class FriendGroups {\n      constructor(adaFriends, charlesFriends) {\n        set(this, 'adaFriends', adaFriends);\n        set(this, 'charlesFriends', charlesFriends);\n      }\n  \n      @intersect('adaFriends', 'charlesFriends') friendsInCommon;\n    }\n  \n    let groups = new FriendGroups(\n      ['Charles Babbage', 'John Hobhouse', 'William King', 'Mary Somerville'],\n      ['William King', 'Mary Somerville', 'Ada Lovelace', 'George Peacock']\n    );\n  \n    groups.friendsInCommon; // ['William King', 'Mary Somerville']\n    ```\n  \n    Classic Class Example:\n  \n    ```javascript\n    import EmberObject from '@ember/object';\n    import { intersect } from '@ember/object/computed';\n  \n    let FriendGroups = EmberObject.extend({\n      friendsInCommon: intersect('adaFriends', 'charlesFriends')\n    });\n  \n    let groups = FriendGroups.create({\n      adaFriends: ['Charles Babbage', 'John Hobhouse', 'William King', 'Mary Somerville'],\n      charlesFriends: ['William King', 'Mary Somerville', 'Ada Lovelace', 'George Peacock']\n    });\n  \n    groups.friendsInCommon; // ['William King', 'Mary Somerville']\n    ```\n  \n    @method intersect\n    @for @ember/object/computed\n    @static\n    @param {String} propertyKey*\n    @return {ComputedProperty} computes a new array with all the duplicated\n    elements from the dependent arrays\n    @public\n  */\n\n  _exports.union = union;\n\n  function intersect(...args) {\n    (true && !(!(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))) && (0, _debug.assert)('You attempted to use @intersect as a decorator directly, but it requires atleast one dependent key parameter', !(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))));\n    return multiArrayMacro(args, function (dependentKeys) {\n      var arrays = dependentKeys.map(dependentKey => {\n        var array = (0, _metal.get)(this, dependentKey);\n        return (0, _runtime.isArray)(array) ? array : [];\n      });\n      var results = arrays.pop().filter(candidate => {\n        for (var i = 0; i < arrays.length; i++) {\n          var found = false;\n          var array = arrays[i];\n\n          for (var j = 0; j < array.length; j++) {\n            if (array[j] === candidate) {\n              found = true;\n              break;\n            }\n          }\n\n          if (found === false) {\n            return false;\n          }\n        }\n\n        return true;\n      });\n      return (0, _runtime.A)(results);\n    }, 'intersect');\n  }\n  /**\n    A computed property which returns a new array with all the properties from the\n    first dependent array that are not in the second dependent array.\n  \n    Example:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { setDiff } from '@ember/object/computed';\n  \n    class Hamster {\n      constructor(likes, fruits) {\n        set(this, 'likes', likes);\n        set(this, 'fruits', fruits);\n      }\n  \n      @setDiff('likes', 'fruits') wants;\n    }\n  \n    let hamster = new Hamster(\n      [\n        'banana',\n        'grape',\n        'kale'\n      ],\n      [\n        'grape',\n        'kale',\n      ]\n    );\n  \n    hamster.wants; // ['banana']\n    ```\n  \n    Classic Class Example:\n  \n    ```javascript\n    import EmberObject from '@ember/object';\n    import { setDiff } from '@ember/object/computed';\n  \n    let Hamster = EmberObject.extend({\n      wants: setDiff('likes', 'fruits')\n    });\n  \n    let hamster = Hamster.create({\n      likes: [\n        'banana',\n        'grape',\n        'kale'\n      ],\n      fruits: [\n        'grape',\n        'kale',\n      ]\n    });\n  \n    hamster.wants; // ['banana']\n    ```\n  \n    @method setDiff\n    @for @ember/object/computed\n    @static\n    @param {String} setAProperty\n    @param {String} setBProperty\n    @return {ComputedProperty} computes a new array with all the items from the\n    first dependent array that are not in the second dependent array\n    @public\n  */\n\n\n  function setDiff(setAProperty, setBProperty) {\n    (true && !(!(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))) && (0, _debug.assert)('You attempted to use @setDiff as a decorator directly, but it requires atleast one dependent key parameter', !(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))));\n    (true && !(arguments.length === 2) && (0, _debug.assert)('`computed.setDiff` requires exactly two dependent arrays.', arguments.length === 2));\n    (true && !(!/[\\[\\]\\{\\}]/g.test(setAProperty) && !/[\\[\\]\\{\\}]/g.test(setBProperty)) && (0, _debug.assert)(`Dependent keys passed to \\`computed.setDiff\\` shouldn't contain brace expanding pattern.`, !/[\\[\\]\\{\\}]/g.test(setAProperty) && !/[\\[\\]\\{\\}]/g.test(setBProperty)));\n    return (0, _metal.computed)(`${setAProperty}.[]`, `${setBProperty}.[]`, function () {\n      var setA = (0, _metal.get)(this, setAProperty);\n      var setB = (0, _metal.get)(this, setBProperty);\n\n      if (!(0, _runtime.isArray)(setA)) {\n        return (0, _runtime.A)();\n      }\n\n      if (!(0, _runtime.isArray)(setB)) {\n        return (0, _runtime.A)(setA);\n      }\n\n      return setA.filter(x => setB.indexOf(x) === -1);\n    }).readOnly();\n  }\n  /**\n    A computed property that returns the array of values for the provided\n    dependent properties.\n  \n    Example:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { collect } from '@ember/object/computed';\n  \n    class Hamster {\n      @collect('hat', 'shirt') clothes;\n    }\n  \n    let hamster = new Hamster();\n  \n    hamster.clothes; // [null, null]\n  \n    set(hamster, 'hat', 'Camp Hat');\n    set(hamster, 'shirt', 'Camp Shirt');\n    hamster.clothes; // ['Camp Hat', 'Camp Shirt']\n    ```\n  \n    Classic Class Example:\n  \n    ```javascript\n    import EmberObject, { set } from '@ember/object';\n    import { collect } from '@ember/object/computed';\n  \n    let Hamster = EmberObject.extend({\n      clothes: collect('hat', 'shirt')\n    });\n  \n    let hamster = Hamster.create();\n  \n    hamster.clothes; // [null, null]\n  \n    set(hamster, 'hat', 'Camp Hat');\n    set(hamster, 'shirt', 'Camp Shirt');\n    hamster.clothes; // ['Camp Hat', 'Camp Shirt']\n    ```\n  \n    @method collect\n    @for @ember/object/computed\n    @static\n    @param {String} dependentKey*\n    @return {ComputedProperty} computed property which maps values of all passed\n    in properties to an array.\n    @public\n  */\n\n\n  function collect(...dependentKeys) {\n    (true && !(!(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))) && (0, _debug.assert)('You attempted to use @collect as a decorator directly, but it requires atleast one dependent key parameter', !(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))));\n    return multiArrayMacro(dependentKeys, function () {\n      var res = dependentKeys.map(key => {\n        var val = (0, _metal.get)(this, key);\n        return val === undefined ? null : val;\n      });\n      return (0, _runtime.A)(res);\n    }, 'collect');\n  }\n  /**\n    A computed property which returns a new array with all the properties from the\n    first dependent array sorted based on a property or sort function. The sort\n    macro can be used in two different ways:\n  \n    1. By providing a sort callback function\n    2. By providing an array of keys to sort the array\n  \n    In the first form, the callback method you provide should have the following\n    signature:\n  \n    ```javascript\n    function sortCallback(itemA, itemB);\n    ```\n  \n    - `itemA` the first item to compare.\n    - `itemB` the second item to compare.\n  \n    This function should return negative number (e.g. `-1`) when `itemA` should\n    come before `itemB`. It should return positive number (e.g. `1`) when `itemA`\n    should come after `itemB`. If the `itemA` and `itemB` are equal this function\n    should return `0`.\n  \n    Therefore, if this function is comparing some numeric values, simple `itemA -\n    itemB` or `itemA.get( 'foo' ) - itemB.get( 'foo' )` can be used instead of\n    series of `if`.\n  \n    Example:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { sort } from '@ember/object/computed';\n  \n    class ToDoList {\n      constructor(todos) {\n        set(this, 'todos', todos);\n      }\n  \n      // using a custom sort function\n      @sort('todos', function(a, b){\n        if (a.priority > b.priority) {\n          return 1;\n        } else if (a.priority < b.priority) {\n          return -1;\n        }\n  \n        return 0;\n      })\n      priorityTodos;\n    }\n  \n    let todoList = new ToDoList([\n      { name: 'Unit Test', priority: 2 },\n      { name: 'Documentation', priority: 3 },\n      { name: 'Release', priority: 1 }\n    ]);\n  \n    todoList.priorityTodos; // [{ name:'Release', priority:1 }, { name:'Unit Test', priority:2 }, { name:'Documentation', priority:3 }]\n    ```\n  \n    Classic Class Example:\n  \n    ```javascript\n    import EmberObject from '@ember/object';\n    import { sort } from '@ember/object/computed';\n  \n    let ToDoList = EmberObject.extend({\n      // using a custom sort function\n      priorityTodos: sort('todos', function(a, b){\n        if (a.priority > b.priority) {\n          return 1;\n        } else if (a.priority < b.priority) {\n          return -1;\n        }\n  \n        return 0;\n      })\n    });\n  \n    let todoList = ToDoList.create({\n      todos: [\n        { name: 'Unit Test', priority: 2 },\n        { name: 'Documentation', priority: 3 },\n        { name: 'Release', priority: 1 }\n      ]\n    });\n  \n    todoList.priorityTodos; // [{ name:'Release', priority:1 }, { name:'Unit Test', priority:2 }, { name:'Documentation', priority:3 }]\n    ```\n  \n    You can also optionally pass an array of additional dependent keys as the\n    second parameter, if your sort function is dependent on additional values that\n    could changes:\n  \n    ```js\n    import EmberObject, { set } from '@ember/object';\n    import { sort } from '@ember/object/computed';\n  \n    class ToDoList {\n      sortKey = 'priority';\n  \n      constructor(todos) {\n        set(this, 'todos', todos);\n      }\n  \n      // using a custom sort function\n      @sort('todos', ['sortKey'], function(a, b){\n        if (a[this.sortKey] > b[this.sortKey]) {\n          return 1;\n        } else if (a[this.sortKey] < b[this.sortKey]) {\n          return -1;\n        }\n  \n        return 0;\n      })\n      sortedTodos;\n    });\n  \n    let todoList = new ToDoList([\n      { name: 'Unit Test', priority: 2 },\n      { name: 'Documentation', priority: 3 },\n      { name: 'Release', priority: 1 }\n    ]);\n  \n    todoList.priorityTodos; // [{ name:'Release', priority:1 }, { name:'Unit Test', priority:2 }, { name:'Documentation', priority:3 }]\n    ```\n  \n    In the second form, you should provide the key of the array of sort values as\n    the second parameter:\n  \n    ```javascript\n    import { set } from '@ember/object';\n    import { sort } from '@ember/object/computed';\n  \n    class ToDoList {\n      constructor(todos) {\n        set(this, 'todos', todos);\n      }\n  \n      // using standard ascending sort\n      todosSorting = ['name'];\n      @sort('todos', 'todosSorting') sortedTodos;\n  \n      // using descending sort\n      todosSortingDesc = ['name:desc'];\n      @sort('todos', 'todosSortingDesc') sortedTodosDesc;\n    }\n  \n    let todoList = new ToDoList([\n      { name: 'Unit Test', priority: 2 },\n      { name: 'Documentation', priority: 3 },\n      { name: 'Release', priority: 1 }\n    ]);\n  \n    todoList.sortedTodos; // [{ name:'Documentation', priority:3 }, { name:'Release', priority:1 }, { name:'Unit Test', priority:2 }]\n    todoList.sortedTodosDesc; // [{ name:'Unit Test', priority:2 }, { name:'Release', priority:1 }, { name:'Documentation', priority:3 }]\n    ```\n  \n    @method sort\n    @for @ember/object/computed\n    @static\n    @param {String} itemsKey\n    @param {String|Function|Array} sortDefinitionOrDependentKeys The key of the sort definition (an array of sort properties),\n    the sort function, or an array of additional dependent keys\n    @param {Function?} sortDefinition the sort function (when used with additional dependent keys)\n    @return {ComputedProperty} computes a new sorted array based on the sort\n    property array or callback function\n    @public\n  */\n\n\n  function sort(itemsKey, additionalDependentKeys, sortDefinition) {\n    (true && !(!(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))) && (0, _debug.assert)('You attempted to use @sort as a decorator directly, but it requires atleast an `itemsKey` parameter', !(0, _metal.isElementDescriptor)(Array.prototype.slice.call(arguments))));\n\n    if (true\n    /* DEBUG */\n    ) {\n      var argumentsValid = false;\n\n      if (arguments.length === 2) {\n        argumentsValid = typeof itemsKey === 'string' && (typeof additionalDependentKeys === 'string' || typeof additionalDependentKeys === 'function');\n      }\n\n      if (arguments.length === 3) {\n        argumentsValid = typeof itemsKey === 'string' && Array.isArray(additionalDependentKeys) && typeof sortDefinition === 'function';\n      }\n\n      (true && !(argumentsValid) && (0, _debug.assert)('`computed.sort` can either be used with an array of sort properties or with a sort function. If used with an array of sort properties, it must receive exactly two arguments: the key of the array to sort, and the key of the array of sort properties. If used with a sort function, it may receive up to three arguments: the key of the array to sort, an optional additional array of dependent keys for the computed property, and the sort function.', argumentsValid));\n    }\n\n    if (sortDefinition === undefined && !Array.isArray(additionalDependentKeys)) {\n      sortDefinition = additionalDependentKeys;\n      additionalDependentKeys = [];\n    }\n\n    if (typeof sortDefinition === 'function') {\n      return customSort(itemsKey, additionalDependentKeys, sortDefinition);\n    } else {\n      return propertySort(itemsKey, sortDefinition);\n    }\n  }\n\n  function customSort(itemsKey, additionalDependentKeys, comparator) {\n    return arrayMacro(itemsKey, additionalDependentKeys, function (value) {\n      return value.slice().sort((x, y) => comparator.call(this, x, y));\n    });\n  } // This one needs to dynamically set up and tear down observers on the itemsKey\n  // depending on the sortProperties\n\n\n  function propertySort(itemsKey, sortPropertiesKey) {\n    var cp = (0, _metal.computed)(`${itemsKey}.[]`, `${sortPropertiesKey}.[]`, function (key) {\n      var sortProperties = (0, _metal.get)(this, sortPropertiesKey);\n      (true && !((0, _runtime.isArray)(sortProperties) && sortProperties.every(s => typeof s === 'string')) && (0, _debug.assert)(`The sort definition for '${key}' on ${this} must be a function or an array of strings`, (0, _runtime.isArray)(sortProperties) && sortProperties.every(s => typeof s === 'string')));\n      var itemsKeyIsAtThis = itemsKey === '@this';\n      var normalizedSortProperties = normalizeSortProperties(sortProperties);\n      var items = itemsKeyIsAtThis ? this : (0, _metal.get)(this, itemsKey);\n\n      if (!(0, _runtime.isArray)(items)) {\n        return (0, _runtime.A)();\n      }\n\n      if (normalizedSortProperties.length === 0) {\n        return (0, _runtime.A)(items.slice());\n      } else {\n        return sortByNormalizedSortProperties(items, normalizedSortProperties);\n      }\n    }).readOnly();\n    (0, _metal.descriptorForDecorator)(cp).auto();\n    return cp;\n  }\n\n  function normalizeSortProperties(sortProperties) {\n    return sortProperties.map(p => {\n      var [prop, direction] = p.split(':');\n      direction = direction || 'asc';\n      return [prop, direction];\n    });\n  }\n\n  function sortByNormalizedSortProperties(items, normalizedSortProperties) {\n    return (0, _runtime.A)(items.slice().sort((itemA, itemB) => {\n      for (var i = 0; i < normalizedSortProperties.length; i++) {\n        var [prop, direction] = normalizedSortProperties[i];\n        var result = (0, _runtime.compare)((0, _metal.get)(itemA, prop), (0, _metal.get)(itemB, prop));\n\n        if (result !== 0) {\n          return direction === 'desc' ? -1 * result : result;\n        }\n      }\n\n      return 0;\n    }));\n  }\n});","define(\"@ember/polyfills/index\", [\"exports\", \"@ember/deprecated-features\", \"@ember/polyfills/lib/merge\", \"@ember/polyfills/lib/assign\", \"@ember/polyfills/lib/weak_set\"], function (_exports, _deprecatedFeatures, _merge, _assign, _weak_set) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"assign\", {\n    enumerable: true,\n    get: function () {\n      return _assign.default;\n    }\n  });\n  Object.defineProperty(_exports, \"assignPolyfill\", {\n    enumerable: true,\n    get: function () {\n      return _assign.assign;\n    }\n  });\n  Object.defineProperty(_exports, \"_WeakSet\", {\n    enumerable: true,\n    get: function () {\n      return _weak_set.default;\n    }\n  });\n  _exports.merge = void 0;\n  var merge = _deprecatedFeatures.MERGE ? _merge.default : undefined; // Export `assignPolyfill` for testing\n\n  _exports.merge = merge;\n});","define(\"@ember/polyfills/lib/assign\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.assign = assign;\n  _exports.default = void 0;\n\n  /**\n   @module @ember/polyfills\n  */\n\n  /**\n    Copy properties from a source object to a target object. Source arguments remain unchanged.\n  \n    ```javascript\n    import { assign } from '@ember/polyfills';\n  \n    var a = { first: 'Yehuda' };\n    var b = { last: 'Katz' };\n    var c = { company: 'Other Company' };\n    var d = { company: 'Tilde Inc.' };\n    assign(a, b, c, d); // a === { first: 'Yehuda', last: 'Katz', company: 'Tilde Inc.' };\n    ```\n  \n    @method assign\n    @for @ember/polyfills\n    @param {Object} target The object to assign into\n    @param {Object} ...args The objects to copy properties from\n    @return {Object}\n    @public\n    @static\n  */\n  function assign(target) {\n    for (var i = 1; i < arguments.length; i++) {\n      var arg = arguments[i];\n\n      if (!arg) {\n        continue;\n      }\n\n      var updates = Object.keys(arg);\n\n      for (var _i = 0; _i < updates.length; _i++) {\n        var prop = updates[_i];\n        target[prop] = arg[prop];\n      }\n    }\n\n    return target;\n  } // Note: We use the bracket notation so\n  //       that the babel plugin does not\n  //       transform it.\n  // https://www.npmjs.com/package/babel-plugin-transform-object-assign\n\n\n  var {\n    assign: _assign\n  } = Object;\n\n  var _default = _assign || assign;\n\n  _exports.default = _default;\n});","define(\"@ember/polyfills/lib/merge\", [\"exports\", \"@ember/debug\"], function (_exports, _debug) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = merge;\n\n  /**\n    Merge the contents of two objects together into the first object.\n  \n    ```javascript\n    import { merge } from '@ember/polyfills';\n  \n    merge({ first: 'Tom' }, { last: 'Dale' }); // { first: 'Tom', last: 'Dale' }\n    var a = { first: 'Yehuda' };\n    var b = { last: 'Katz' };\n    merge(a, b); // a == { first: 'Yehuda', last: 'Katz' }, b == { last: 'Katz' }\n    ```\n  \n    @method merge\n    @static\n    @for @ember/polyfills\n    @param {Object} original The object to merge into\n    @param {Object} updates The object to copy properties from\n    @return {Object}\n    @deprecated\n    @public\n  */\n  function merge(original, updates) {\n    (true && !(false) && (0, _debug.deprecate)('Use of `merge` has been deprecated. Please use `assign` instead.', false, {\n      id: 'ember-polyfills.deprecate-merge',\n      until: '4.0.0',\n      url: 'https://emberjs.com/deprecations/v3.x/#toc_ember-polyfills-deprecate-merge'\n    }));\n\n    if (updates === null || typeof updates !== 'object') {\n      return original;\n    }\n\n    var props = Object.keys(updates);\n    var prop;\n\n    for (var i = 0; i < props.length; i++) {\n      prop = props[i];\n      original[prop] = updates[prop];\n    }\n\n    return original;\n  }\n});","define(\"@ember/polyfills/lib/weak_set\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /* globals WeakSet */\n  var _default = typeof WeakSet === 'function' ? WeakSet : class WeakSetPolyFill {\n    constructor() {\n      this._map = new WeakMap();\n    }\n\n    add(val) {\n      this._map.set(val, true);\n\n      return this;\n    }\n\n    delete(val) {\n      return this._map.delete(val);\n    }\n\n    has(val) {\n      return this._map.has(val);\n    }\n\n  };\n\n  _exports.default = _default;\n});","define(\"@ember/runloop/index\", [\"exports\", \"@ember/debug\", \"@ember/-internals/error-handling\", \"@ember/-internals/metal\", \"backburner\"], function (_exports, _debug, _errorHandling, _metal, _backburner) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.getCurrentRunLoop = getCurrentRunLoop;\n  _exports.run = run;\n  _exports.join = join;\n  _exports.begin = begin;\n  _exports.end = end;\n  _exports.schedule = schedule;\n  _exports.hasScheduledTimers = hasScheduledTimers;\n  _exports.cancelTimers = cancelTimers;\n  _exports.later = later;\n  _exports.once = once;\n  _exports.scheduleOnce = scheduleOnce;\n  _exports.next = next;\n  _exports.cancel = cancel;\n  _exports.debounce = debounce;\n  _exports.throttle = throttle;\n  _exports.bind = _exports._globalsRun = _exports.backburner = _exports.queues = _exports._rsvpErrorQueue = void 0;\n  var currentRunLoop = null;\n\n  function getCurrentRunLoop() {\n    return currentRunLoop;\n  }\n\n  function onBegin(current) {\n    currentRunLoop = current;\n  }\n\n  function onEnd(current, next) {\n    currentRunLoop = next;\n    (0, _metal.flushAsyncObservers)();\n  }\n\n  function flush(queueName, next) {\n    if (queueName === 'render' || queueName === _rsvpErrorQueue) {\n      (0, _metal.flushAsyncObservers)();\n    }\n\n    next();\n  }\n\n  var _rsvpErrorQueue = `${Math.random()}${Date.now()}`.replace('.', '');\n  /**\n    Array of named queues. This array determines the order in which queues\n    are flushed at the end of the RunLoop. You can define your own queues by\n    simply adding the queue name to this array. Normally you should not need\n    to inspect or modify this property.\n  \n    @property queues\n    @type Array\n    @default ['actions', 'destroy']\n    @private\n  */\n\n\n  _exports._rsvpErrorQueue = _rsvpErrorQueue;\n  var queues = ['actions', // used in router transitions to prevent unnecessary loading state entry\n  // if all context promises resolve on the 'actions' queue first\n  'routerTransitions', 'render', 'afterRender', 'destroy', // used to re-throw unhandled RSVP rejection errors specifically in this\n  // position to avoid breaking anything rendered in the other sections\n  _rsvpErrorQueue];\n  _exports.queues = queues;\n  var backburner = new _backburner.default(queues, {\n    defaultQueue: 'actions',\n    onBegin,\n    onEnd,\n    onErrorTarget: _errorHandling.onErrorTarget,\n    onErrorMethod: 'onerror',\n    flush\n  });\n  /**\n   @module @ember/runloop\n  */\n  // ..........................................................\n  // run - this is ideally the only public API the dev sees\n  //\n\n  /**\n    Runs the passed target and method inside of a RunLoop, ensuring any\n    deferred actions including bindings and views updates are flushed at the\n    end.\n  \n    Normally you should not need to invoke this method yourself. However if\n    you are implementing raw event handlers when interfacing with other\n    libraries or plugins, you should probably wrap all of your code inside this\n    call.\n  \n    ```javascript\n    import { run } from '@ember/runloop';\n  \n    run(function() {\n      // code to be executed within a RunLoop\n    });\n    ```\n    @method run\n    @for @ember/runloop\n    @static\n    @param {Object} [target] target of method to call\n    @param {Function|String} method Method to invoke.\n      May be a function or a string. If you pass a string\n      then it will be looked up on the passed target.\n    @param {Object} [args*] Any additional arguments you wish to pass to the method.\n    @return {Object} return value from invoking the passed function.\n    @public\n  */\n\n  _exports.backburner = backburner;\n\n  function run() {\n    return backburner.run(...arguments);\n  } // used for the Ember.run global only\n\n\n  var _globalsRun = run.bind(null);\n  /**\n    If no run-loop is present, it creates a new one. If a run loop is\n    present it will queue itself to run on the existing run-loops action\n    queue.\n  \n    Please note: This is not for normal usage, and should be used sparingly.\n  \n    If invoked when not within a run loop:\n  \n    ```javascript\n    import { join } from '@ember/runloop';\n  \n    join(function() {\n      // creates a new run-loop\n    });\n    ```\n  \n    Alternatively, if called within an existing run loop:\n  \n    ```javascript\n    import { run, join } from '@ember/runloop';\n  \n    run(function() {\n      // creates a new run-loop\n  \n      join(function() {\n        // joins with the existing run-loop, and queues for invocation on\n        // the existing run-loops action queue.\n      });\n    });\n    ```\n  \n    @method join\n    @static\n    @for @ember/runloop\n    @param {Object} [target] target of method to call\n    @param {Function|String} method Method to invoke.\n      May be a function or a string. If you pass a string\n      then it will be looked up on the passed target.\n    @param {Object} [args*] Any additional arguments you wish to pass to the method.\n    @return {Object} Return value from invoking the passed function. Please note,\n    when called within an existing loop, no return value is possible.\n    @public\n  */\n\n\n  _exports._globalsRun = _globalsRun;\n\n  function join() {\n    return backburner.join(...arguments);\n  }\n  /**\n    Allows you to specify which context to call the specified function in while\n    adding the execution of that function to the Ember run loop. This ability\n    makes this method a great way to asynchronously integrate third-party libraries\n    into your Ember application.\n  \n    `bind` takes two main arguments, the desired context and the function to\n    invoke in that context. Any additional arguments will be supplied as arguments\n    to the function that is passed in.\n  \n    Let's use the creation of a TinyMCE component as an example. Currently,\n    TinyMCE provides a setup configuration option we can use to do some processing\n    after the TinyMCE instance is initialized but before it is actually rendered.\n    We can use that setup option to do some additional setup for our component.\n    The component itself could look something like the following:\n  \n    ```app/components/rich-text-editor.js\n    import Component from '@ember/component';\n    import { on } from '@ember/object/evented';\n    import { bind } from '@ember/runloop';\n  \n    export default Component.extend({\n      initializeTinyMCE: on('didInsertElement', function() {\n        tinymce.init({\n          selector: '#' + this.$().prop('id'),\n          setup: bind(this, this.setupEditor)\n        });\n      }),\n  \n      didInsertElement() {\n        tinymce.init({\n          selector: '#' + this.$().prop('id'),\n          setup: bind(this, this.setupEditor)\n        });\n      }\n  \n      setupEditor(editor) {\n        this.set('editor', editor);\n  \n        editor.on('change', function() {\n          console.log('content changed!');\n        });\n      }\n    });\n    ```\n  \n    In this example, we use `bind` to bind the setupEditor method to the\n    context of the RichTextEditor component and to have the invocation of that\n    method be safely handled and executed by the Ember run loop.\n  \n    @method bind\n    @static\n    @for @ember/runloop\n    @param {Object} [target] target of method to call\n    @param {Function|String} method Method to invoke.\n      May be a function or a string. If you pass a string\n      then it will be looked up on the passed target.\n    @param {Object} [args*] Any additional arguments you wish to pass to the method.\n    @return {Function} returns a new function that will always have a particular context\n    @since 1.4.0\n    @public\n  */\n\n\n  var bind = (...curried) => {\n    (true && !(function (methodOrTarget, methodOrArg) {\n      // Applies the same logic as backburner parseArgs for detecting if a method\n      // is actually being passed.\n      var length = arguments.length;\n\n      if (length === 0) {\n        return false;\n      } else if (length === 1) {\n        return typeof methodOrTarget === 'function';\n      } else {\n        var type = typeof methodOrArg;\n        return type === 'function' || // second argument is a function\n        methodOrTarget !== null && type === 'string' && methodOrArg in methodOrTarget || // second argument is the name of a method in first argument\n        typeof methodOrTarget === 'function' //first argument is a function\n        ;\n      }\n    }(...curried)) && (0, _debug.assert)('could not find a suitable method to bind', function (methodOrTarget, methodOrArg) {\n      var length = arguments.length;\n\n      if (length === 0) {\n        return false;\n      } else if (length === 1) {\n        return typeof methodOrTarget === 'function';\n      } else {\n        var type = typeof methodOrArg;\n        return type === 'function' || methodOrTarget !== null && type === 'string' && methodOrArg in methodOrTarget || typeof methodOrTarget === 'function';\n      }\n    }(...curried)));\n    return (...args) => join(...curried.concat(args));\n  };\n  /**\n    Begins a new RunLoop. Any deferred actions invoked after the begin will\n    be buffered until you invoke a matching call to `end()`. This is\n    a lower-level way to use a RunLoop instead of using `run()`.\n  \n    ```javascript\n    import { begin, end } from '@ember/runloop';\n  \n    begin();\n    // code to be executed within a RunLoop\n    end();\n    ```\n  \n    @method begin\n    @static\n    @for @ember/runloop\n    @return {void}\n    @public\n  */\n\n\n  _exports.bind = bind;\n\n  function begin() {\n    backburner.begin();\n  }\n  /**\n    Ends a RunLoop. This must be called sometime after you call\n    `begin()` to flush any deferred actions. This is a lower-level way\n    to use a RunLoop instead of using `run()`.\n  \n    ```javascript\n    import { begin, end } from '@ember/runloop';\n  \n    begin();\n    // code to be executed within a RunLoop\n    end();\n    ```\n  \n    @method end\n    @static\n    @for @ember/runloop\n    @return {void}\n    @public\n  */\n\n\n  function end() {\n    backburner.end();\n  }\n  /**\n    Adds the passed target/method and any optional arguments to the named\n    queue to be executed at the end of the RunLoop. If you have not already\n    started a RunLoop when calling this method one will be started for you\n    automatically.\n  \n    At the end of a RunLoop, any methods scheduled in this way will be invoked.\n    Methods will be invoked in an order matching the named queues defined in\n    the `queues` property.\n  \n    ```javascript\n    import { schedule } from '@ember/runloop';\n  \n    schedule('afterRender', this, function() {\n      // this will be executed in the 'afterRender' queue\n      console.log('scheduled on afterRender queue');\n    });\n  \n    schedule('actions', this, function() {\n      // this will be executed in the 'actions' queue\n      console.log('scheduled on actions queue');\n    });\n  \n    // Note the functions will be run in order based on the run queues order.\n    // Output would be:\n    //   scheduled on actions queue\n    //   scheduled on afterRender queue\n    ```\n  \n    @method schedule\n    @static\n    @for @ember/runloop\n    @param {String} queue The name of the queue to schedule against. Default queues is 'actions'\n    @param {Object} [target] target object to use as the context when invoking a method.\n    @param {String|Function} method The method to invoke. If you pass a string it\n      will be resolved on the target object at the time the scheduled item is\n      invoked allowing you to change the target function.\n    @param {Object} [arguments*] Optional arguments to be passed to the queued method.\n    @return {*} Timer information for use in canceling, see `cancel`.\n    @public\n  */\n\n\n  function schedule()\n  /* queue, target, method */\n  {\n    return backburner.schedule(...arguments);\n  } // Used by global test teardown\n\n\n  function hasScheduledTimers() {\n    return backburner.hasTimers();\n  } // Used by global test teardown\n\n\n  function cancelTimers() {\n    backburner.cancelTimers();\n  }\n  /**\n    Invokes the passed target/method and optional arguments after a specified\n    period of time. The last parameter of this method must always be a number\n    of milliseconds.\n  \n    You should use this method whenever you need to run some action after a\n    period of time instead of using `setTimeout()`. This method will ensure that\n    items that expire during the same script execution cycle all execute\n    together, which is often more efficient than using a real setTimeout.\n  \n    ```javascript\n    import { later } from '@ember/runloop';\n  \n    later(myContext, function() {\n      // code here will execute within a RunLoop in about 500ms with this == myContext\n    }, 500);\n    ```\n  \n    @method later\n    @static\n    @for @ember/runloop\n    @param {Object} [target] target of method to invoke\n    @param {Function|String} method The method to invoke.\n      If you pass a string it will be resolved on the\n      target at the time the method is invoked.\n    @param {Object} [args*] Optional arguments to pass to the timeout.\n    @param {Number} wait Number of milliseconds to wait.\n    @return {*} Timer information for use in canceling, see `cancel`.\n    @public\n  */\n\n\n  function later()\n  /*target, method*/\n  {\n    return backburner.later(...arguments);\n  }\n  /**\n   Schedule a function to run one time during the current RunLoop. This is equivalent\n    to calling `scheduleOnce` with the \"actions\" queue.\n  \n    @method once\n    @static\n    @for @ember/runloop\n    @param {Object} [target] The target of the method to invoke.\n    @param {Function|String} method The method to invoke.\n      If you pass a string it will be resolved on the\n      target at the time the method is invoked.\n    @param {Object} [args*] Optional arguments to pass to the timeout.\n    @return {Object} Timer information for use in canceling, see `cancel`.\n    @public\n  */\n\n\n  function once(...args) {\n    args.unshift('actions');\n    return backburner.scheduleOnce(...args);\n  }\n  /**\n    Schedules a function to run one time in a given queue of the current RunLoop.\n    Calling this method with the same queue/target/method combination will have\n    no effect (past the initial call).\n  \n    Note that although you can pass optional arguments these will not be\n    considered when looking for duplicates. New arguments will replace previous\n    calls.\n  \n    ```javascript\n    import { run, scheduleOnce } from '@ember/runloop';\n  \n    function sayHi() {\n      console.log('hi');\n    }\n  \n    run(function() {\n      scheduleOnce('afterRender', myContext, sayHi);\n      scheduleOnce('afterRender', myContext, sayHi);\n      // sayHi will only be executed once, in the afterRender queue of the RunLoop\n    });\n    ```\n  \n    Also note that for `scheduleOnce` to prevent additional calls, you need to\n    pass the same function instance. The following case works as expected:\n  \n    ```javascript\n    function log() {\n      console.log('Logging only once');\n    }\n  \n    function scheduleIt() {\n      scheduleOnce('actions', myContext, log);\n    }\n  \n    scheduleIt();\n    scheduleIt();\n    ```\n  \n    But this other case will schedule the function multiple times:\n  \n    ```javascript\n    import { scheduleOnce } from '@ember/runloop';\n  \n    function scheduleIt() {\n      scheduleOnce('actions', myContext, function() {\n        console.log('Closure');\n      });\n    }\n  \n    scheduleIt();\n    scheduleIt();\n  \n    // \"Closure\" will print twice, even though we're using `scheduleOnce`,\n    // because the function we pass to it won't match the\n    // previously scheduled operation.\n    ```\n  \n    Available queues, and their order, can be found at `queues`\n  \n    @method scheduleOnce\n    @static\n    @for @ember/runloop\n    @param {String} [queue] The name of the queue to schedule against. Default queues is 'actions'.\n    @param {Object} [target] The target of the method to invoke.\n    @param {Function|String} method The method to invoke.\n      If you pass a string it will be resolved on the\n      target at the time the method is invoked.\n    @param {Object} [args*] Optional arguments to pass to the timeout.\n    @return {Object} Timer information for use in canceling, see `cancel`.\n    @public\n  */\n\n\n  function scheduleOnce()\n  /* queue, target, method*/\n  {\n    return backburner.scheduleOnce(...arguments);\n  }\n  /**\n    Schedules an item to run from within a separate run loop, after\n    control has been returned to the system. This is equivalent to calling\n    `later` with a wait time of 1ms.\n  \n    ```javascript\n    import { next } from '@ember/runloop';\n  \n    next(myContext, function() {\n      // code to be executed in the next run loop,\n      // which will be scheduled after the current one\n    });\n    ```\n  \n    Multiple operations scheduled with `next` will coalesce\n    into the same later run loop, along with any other operations\n    scheduled by `later` that expire right around the same\n    time that `next` operations will fire.\n  \n    Note that there are often alternatives to using `next`.\n    For instance, if you'd like to schedule an operation to happen\n    after all DOM element operations have completed within the current\n    run loop, you can make use of the `afterRender` run loop queue (added\n    by the `ember-views` package, along with the preceding `render` queue\n    where all the DOM element operations happen).\n  \n    Example:\n  \n    ```app/components/my-component.js\n    import Component from '@ember/component';\n    import { scheduleOnce } from '@ember/runloop';\n  \n    export Component.extend({\n      didInsertElement() {\n        this._super(...arguments);\n        scheduleOnce('afterRender', this, 'processChildElements');\n      },\n  \n      processChildElements() {\n        // ... do something with component's child component\n        // elements after they've finished rendering, which\n        // can't be done within this component's\n        // `didInsertElement` hook because that gets run\n        // before the child elements have been added to the DOM.\n      }\n    });\n    ```\n  \n    One benefit of the above approach compared to using `next` is\n    that you will be able to perform DOM/CSS operations before unprocessed\n    elements are rendered to the screen, which may prevent flickering or\n    other artifacts caused by delaying processing until after rendering.\n  \n    The other major benefit to the above approach is that `next`\n    introduces an element of non-determinism, which can make things much\n    harder to test, due to its reliance on `setTimeout`; it's much harder\n    to guarantee the order of scheduled operations when they are scheduled\n    outside of the current run loop, i.e. with `next`.\n  \n    @method next\n    @static\n    @for @ember/runloop\n    @param {Object} [target] target of method to invoke\n    @param {Function|String} method The method to invoke.\n      If you pass a string it will be resolved on the\n      target at the time the method is invoked.\n    @param {Object} [args*] Optional arguments to pass to the timeout.\n    @return {Object} Timer information for use in canceling, see `cancel`.\n    @public\n  */\n\n\n  function next(...args) {\n    args.push(1);\n    return backburner.later(...args);\n  }\n  /**\n    Cancels a scheduled item. Must be a value returned by `later()`,\n    `once()`, `scheduleOnce()`, `next()`, `debounce()`, or\n    `throttle()`.\n  \n    ```javascript\n    import {\n      next,\n      cancel,\n      later,\n      scheduleOnce,\n      once,\n      throttle,\n      debounce\n    } from '@ember/runloop';\n  \n    let runNext = next(myContext, function() {\n      // will not be executed\n    });\n  \n    cancel(runNext);\n  \n    let runLater = later(myContext, function() {\n      // will not be executed\n    }, 500);\n  \n    cancel(runLater);\n  \n    let runScheduleOnce = scheduleOnce('afterRender', myContext, function() {\n      // will not be executed\n    });\n  \n    cancel(runScheduleOnce);\n  \n    let runOnce = once(myContext, function() {\n      // will not be executed\n    });\n  \n    cancel(runOnce);\n  \n    let throttle = throttle(myContext, function() {\n      // will not be executed\n    }, 1, false);\n  \n    cancel(throttle);\n  \n    let debounce = debounce(myContext, function() {\n      // will not be executed\n    }, 1);\n  \n    cancel(debounce);\n  \n    let debounceImmediate = debounce(myContext, function() {\n      // will be executed since we passed in true (immediate)\n    }, 100, true);\n  \n    // the 100ms delay until this method can be called again will be canceled\n    cancel(debounceImmediate);\n    ```\n  \n    @method cancel\n    @static\n    @for @ember/runloop\n    @param {Object} timer Timer object to cancel\n    @return {Boolean} true if canceled or false/undefined if it wasn't found\n    @public\n  */\n\n\n  function cancel(timer) {\n    return backburner.cancel(timer);\n  }\n  /**\n    Delay calling the target method until the debounce period has elapsed\n    with no additional debounce calls. If `debounce` is called again before\n    the specified time has elapsed, the timer is reset and the entire period\n    must pass again before the target method is called.\n  \n    This method should be used when an event may be called multiple times\n    but the action should only be called once when the event is done firing.\n    A common example is for scroll events where you only want updates to\n    happen once scrolling has ceased.\n  \n    ```javascript\n    import { debounce } from '@ember/runloop';\n  \n    function whoRan() {\n      console.log(this.name + ' ran.');\n    }\n  \n    let myContext = { name: 'debounce' };\n  \n    debounce(myContext, whoRan, 150);\n  \n    // less than 150ms passes\n    debounce(myContext, whoRan, 150);\n  \n    // 150ms passes\n    // whoRan is invoked with context myContext\n    // console logs 'debounce ran.' one time.\n    ```\n  \n    Immediate allows you to run the function immediately, but debounce\n    other calls for this function until the wait time has elapsed. If\n    `debounce` is called again before the specified time has elapsed,\n    the timer is reset and the entire period must pass again before\n    the method can be called again.\n  \n    ```javascript\n    import { debounce } from '@ember/runloop';\n  \n    function whoRan() {\n      console.log(this.name + ' ran.');\n    }\n  \n    let myContext = { name: 'debounce' };\n  \n    debounce(myContext, whoRan, 150, true);\n  \n    // console logs 'debounce ran.' one time immediately.\n    // 100ms passes\n    debounce(myContext, whoRan, 150, true);\n  \n    // 150ms passes and nothing else is logged to the console and\n    // the debouncee is no longer being watched\n    debounce(myContext, whoRan, 150, true);\n  \n    // console logs 'debounce ran.' one time immediately.\n    // 150ms passes and nothing else is logged to the console and\n    // the debouncee is no longer being watched\n    ```\n  \n    @method debounce\n    @static\n    @for @ember/runloop\n    @param {Object} [target] target of method to invoke\n    @param {Function|String} method The method to invoke.\n      May be a function or a string. If you pass a string\n      then it will be looked up on the passed target.\n    @param {Object} [args*] Optional arguments to pass to the timeout.\n    @param {Number} wait Number of milliseconds to wait.\n    @param {Boolean} immediate Trigger the function on the leading instead\n      of the trailing edge of the wait interval. Defaults to false.\n    @return {Array} Timer information for use in canceling, see `cancel`.\n    @public\n  */\n\n\n  function debounce() {\n    return backburner.debounce(...arguments);\n  }\n  /**\n    Ensure that the target method is never called more frequently than\n    the specified spacing period. The target method is called immediately.\n  \n    ```javascript\n    import { throttle } from '@ember/runloop';\n  \n    function whoRan() {\n      console.log(this.name + ' ran.');\n    }\n  \n    let myContext = { name: 'throttle' };\n  \n    throttle(myContext, whoRan, 150);\n    // whoRan is invoked with context myContext\n    // console logs 'throttle ran.'\n  \n    // 50ms passes\n    throttle(myContext, whoRan, 150);\n  \n    // 50ms passes\n    throttle(myContext, whoRan, 150);\n  \n    // 150ms passes\n    throttle(myContext, whoRan, 150);\n    // whoRan is invoked with context myContext\n    // console logs 'throttle ran.'\n    ```\n  \n    @method throttle\n    @static\n    @for @ember/runloop\n    @param {Object} [target] target of method to invoke\n    @param {Function|String} method The method to invoke.\n      May be a function or a string. If you pass a string\n      then it will be looked up on the passed target.\n    @param {Object} [args*] Optional arguments to pass to the timeout.\n    @param {Number} spacing Number of milliseconds to space out requests.\n    @param {Boolean} immediate Trigger the function on the leading instead\n      of the trailing edge of the wait interval. Defaults to true.\n    @return {Array} Timer information for use in canceling, see `cancel`.\n    @public\n  */\n\n\n  function throttle() {\n    return backburner.throttle(...arguments);\n  }\n});","define(\"@ember/service/index\", [\"exports\", \"@ember/-internals/runtime\", \"@ember/-internals/metal\"], function (_exports, _runtime, _metal) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.inject = inject;\n  _exports.default = void 0;\n\n  /**\n   @module @ember/service\n   @public\n   */\n\n  /**\n    Creates a property that lazily looks up a service in the container. There are\n    no restrictions as to what objects a service can be injected into.\n  \n    Example:\n  \n    ```app/routes/application.js\n    import Route from '@ember/routing/route';\n    import { inject as service } from '@ember/service';\n  \n    export default class ApplicationRoute extends Route {\n      @service('auth') authManager;\n  \n      model() {\n        return this.authManager.findCurrentUser();\n      }\n    }\n    ```\n  \n    Classic Class Example:\n  \n    ```app/routes/application.js\n    import Route from '@ember/routing/route';\n    import { inject as service } from '@ember/service';\n  \n    export default Route.extend({\n      authManager: service('auth'),\n  \n      model() {\n        return this.get('authManager').findCurrentUser();\n      }\n    });\n    ```\n  \n    This example will create an `authManager` property on the application route\n    that looks up the `auth` service in the container, making it easily accessible\n    in the `model` hook.\n  \n    @method inject\n    @static\n    @since 1.10.0\n    @for @ember/service\n    @param {String} name (optional) name of the service to inject, defaults to\n           the property's name\n    @return {ComputedDecorator} injection decorator instance\n    @public\n  */\n  function inject() {\n    return (0, _metal.inject)('service', ...arguments);\n  }\n  /**\n    @class Service\n    @extends EmberObject\n    @since 1.10.0\n    @public\n  */\n\n\n  var Service = _runtime.FrameworkObject.extend();\n\n  Service.reopenClass({\n    isServiceFactory: true\n  });\n  (0, _runtime.setFrameworkClass)(Service);\n  var _default = Service;\n  _exports.default = _default;\n});","define(\"@ember/string/index\", [\"exports\", \"@ember/string/lib/string_registry\", \"@ember/-internals/environment\", \"@ember/-internals/utils\"], function (_exports, _string_registry, _environment, _utils) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.loc = loc;\n  _exports.w = w;\n  _exports.decamelize = decamelize;\n  _exports.dasherize = dasherize;\n  _exports.camelize = camelize;\n  _exports.classify = classify;\n  _exports.underscore = underscore;\n  _exports.capitalize = capitalize;\n  Object.defineProperty(_exports, \"_getStrings\", {\n    enumerable: true,\n    get: function () {\n      return _string_registry.getStrings;\n    }\n  });\n  Object.defineProperty(_exports, \"_setStrings\", {\n    enumerable: true,\n    get: function () {\n      return _string_registry.setStrings;\n    }\n  });\n\n  /**\n  @module @ember/string\n  */\n  var STRING_DASHERIZE_REGEXP = /[ _]/g;\n  var STRING_DASHERIZE_CACHE = new _utils.Cache(1000, key => decamelize(key).replace(STRING_DASHERIZE_REGEXP, '-'));\n  var STRING_CAMELIZE_REGEXP_1 = /(\\-|\\_|\\.|\\s)+(.)?/g;\n  var STRING_CAMELIZE_REGEXP_2 = /(^|\\/)([A-Z])/g;\n  var CAMELIZE_CACHE = new _utils.Cache(1000, key => key.replace(STRING_CAMELIZE_REGEXP_1, (_match, _separator, chr) => chr ? chr.toUpperCase() : '').replace(STRING_CAMELIZE_REGEXP_2, (match\n  /*, separator, chr */\n  ) => match.toLowerCase()));\n  var STRING_CLASSIFY_REGEXP_1 = /^(\\-|_)+(.)?/;\n  var STRING_CLASSIFY_REGEXP_2 = /(.)(\\-|\\_|\\.|\\s)+(.)?/g;\n  var STRING_CLASSIFY_REGEXP_3 = /(^|\\/|\\.)([a-z])/g;\n  var CLASSIFY_CACHE = new _utils.Cache(1000, str => {\n    var replace1 = (_match, _separator, chr) => chr ? `_${chr.toUpperCase()}` : '';\n\n    var replace2 = (_match, initialChar, _separator, chr) => initialChar + (chr ? chr.toUpperCase() : '');\n\n    var parts = str.split('/');\n\n    for (var i = 0; i < parts.length; i++) {\n      parts[i] = parts[i].replace(STRING_CLASSIFY_REGEXP_1, replace1).replace(STRING_CLASSIFY_REGEXP_2, replace2);\n    }\n\n    return parts.join('/').replace(STRING_CLASSIFY_REGEXP_3, (match\n    /*, separator, chr */\n    ) => match.toUpperCase());\n  });\n  var STRING_UNDERSCORE_REGEXP_1 = /([a-z\\d])([A-Z]+)/g;\n  var STRING_UNDERSCORE_REGEXP_2 = /\\-|\\s+/g;\n  var UNDERSCORE_CACHE = new _utils.Cache(1000, str => str.replace(STRING_UNDERSCORE_REGEXP_1, '$1_$2').replace(STRING_UNDERSCORE_REGEXP_2, '_').toLowerCase());\n  var STRING_CAPITALIZE_REGEXP = /(^|\\/)([a-z\\u00C0-\\u024F])/g;\n  var CAPITALIZE_CACHE = new _utils.Cache(1000, str => str.replace(STRING_CAPITALIZE_REGEXP, (match\n  /*, separator, chr */\n  ) => match.toUpperCase()));\n  var STRING_DECAMELIZE_REGEXP = /([a-z\\d])([A-Z])/g;\n  var DECAMELIZE_CACHE = new _utils.Cache(1000, str => str.replace(STRING_DECAMELIZE_REGEXP, '$1_$2').toLowerCase());\n  /**\n    Defines string helper methods including string formatting and localization.\n    Unless `EmberENV.EXTEND_PROTOTYPES.String` is `false` these methods will also be\n    added to the `String.prototype` as well.\n  \n    @class String\n    @public\n  */\n\n  function _fmt(str, formats) {\n    // first, replace any ORDERED replacements.\n    var idx = 0; // the current index for non-numerical replacements\n\n    return str.replace(/%@([0-9]+)?/g, (_s, argIndex) => {\n      var i = argIndex ? parseInt(argIndex, 10) - 1 : idx++;\n      var r = i < formats.length ? formats[i] : undefined;\n      return typeof r === 'string' ? r : r === null ? '(null)' : r === undefined ? '' : String(r);\n    });\n  }\n  /**\n    Formats the passed string, but first looks up the string in the localized\n    strings hash. This is a convenient way to localize text.\n  \n    Note that it is traditional but not required to prefix localized string\n    keys with an underscore or other character so you can easily identify\n    localized strings.\n  \n    ```javascript\n    import { loc } from '@ember/string';\n  \n    Ember.STRINGS = {\n      '_Hello World': 'Bonjour le monde',\n      '_Hello %@ %@': 'Bonjour %@ %@'\n    };\n  \n    loc(\"_Hello World\");  // 'Bonjour le monde';\n    loc(\"_Hello %@ %@\", [\"John\", \"Smith\"]);  // \"Bonjour John Smith\";\n    ```\n  \n    @method loc\n    @param {String} str The string to format\n    @param {Array} formats Optional array of parameters to interpolate into string.\n    @return {String} formatted string\n    @public\n  */\n\n\n  function loc(str, formats) {\n    if (!Array.isArray(formats) || arguments.length > 2) {\n      formats = Array.prototype.slice.call(arguments, 1);\n    }\n\n    str = (0, _string_registry.getString)(str) || str;\n    return _fmt(str, formats);\n  }\n  /**\n    Splits a string into separate units separated by spaces, eliminating any\n    empty strings in the process. This is a convenience method for split that\n    is mostly useful when applied to the `String.prototype`.\n  \n    ```javascript\n    import { w } from '@ember/string';\n  \n    w(\"alpha beta gamma\").forEach(function(key) {\n      console.log(key);\n    });\n  \n    // > alpha\n    // > beta\n    // > gamma\n    ```\n  \n    @method w\n    @param {String} str The string to split\n    @return {Array} array containing the split strings\n    @public\n  */\n\n\n  function w(str) {\n    return str.split(/\\s+/);\n  }\n  /**\n    Converts a camelized string into all lower case separated by underscores.\n  \n    ```javascript\n    import { decamelize } from '@ember/string';\n  \n    decamelize('innerHTML');          // 'inner_html'\n    decamelize('action_name');        // 'action_name'\n    decamelize('css-class-name');     // 'css-class-name'\n    decamelize('my favorite items');  // 'my favorite items'\n    ```\n  \n    @method decamelize\n    @param {String} str The string to decamelize.\n    @return {String} the decamelized string.\n    @public\n  */\n\n\n  function decamelize(str) {\n    return DECAMELIZE_CACHE.get(str);\n  }\n  /**\n    Replaces underscores, spaces, or camelCase with dashes.\n  \n    ```javascript\n    import { dasherize } from '@ember/string';\n  \n    dasherize('innerHTML');                // 'inner-html'\n    dasherize('action_name');              // 'action-name'\n    dasherize('css-class-name');           // 'css-class-name'\n    dasherize('my favorite items');        // 'my-favorite-items'\n    dasherize('privateDocs/ownerInvoice';  // 'private-docs/owner-invoice'\n    ```\n  \n    @method dasherize\n    @param {String} str The string to dasherize.\n    @return {String} the dasherized string.\n    @public\n  */\n\n\n  function dasherize(str) {\n    return STRING_DASHERIZE_CACHE.get(str);\n  }\n  /**\n    Returns the lowerCamelCase form of a string.\n  \n    ```javascript\n    import { camelize } from '@ember/string';\n  \n    camelize('innerHTML');                   // 'innerHTML'\n    camelize('action_name');                 // 'actionName'\n    camelize('css-class-name');              // 'cssClassName'\n    camelize('my favorite items');           // 'myFavoriteItems'\n    camelize('My Favorite Items');           // 'myFavoriteItems'\n    camelize('private-docs/owner-invoice');  // 'privateDocs/ownerInvoice'\n    ```\n  \n    @method camelize\n    @param {String} str The string to camelize.\n    @return {String} the camelized string.\n    @public\n  */\n\n\n  function camelize(str) {\n    return CAMELIZE_CACHE.get(str);\n  }\n  /**\n    Returns the UpperCamelCase form of a string.\n  \n    ```javascript\n    import { classify } from '@ember/string';\n  \n    classify('innerHTML');                   // 'InnerHTML'\n    classify('action_name');                 // 'ActionName'\n    classify('css-class-name');              // 'CssClassName'\n    classify('my favorite items');           // 'MyFavoriteItems'\n    classify('private-docs/owner-invoice');  // 'PrivateDocs/OwnerInvoice'\n    ```\n  \n    @method classify\n    @param {String} str the string to classify\n    @return {String} the classified string\n    @public\n  */\n\n\n  function classify(str) {\n    return CLASSIFY_CACHE.get(str);\n  }\n  /**\n    More general than decamelize. Returns the lower\\_case\\_and\\_underscored\n    form of a string.\n  \n    ```javascript\n    import { underscore } from '@ember/string';\n  \n    underscore('innerHTML');                 // 'inner_html'\n    underscore('action_name');               // 'action_name'\n    underscore('css-class-name');            // 'css_class_name'\n    underscore('my favorite items');         // 'my_favorite_items'\n    underscore('privateDocs/ownerInvoice');  // 'private_docs/owner_invoice'\n    ```\n  \n    @method underscore\n    @param {String} str The string to underscore.\n    @return {String} the underscored string.\n    @public\n  */\n\n\n  function underscore(str) {\n    return UNDERSCORE_CACHE.get(str);\n  }\n  /**\n    Returns the Capitalized form of a string\n  \n    ```javascript\n    import { capitalize } from '@ember/string';\n  \n    capitalize('innerHTML')                 // 'InnerHTML'\n    capitalize('action_name')               // 'Action_name'\n    capitalize('css-class-name')            // 'Css-class-name'\n    capitalize('my favorite items')         // 'My favorite items'\n    capitalize('privateDocs/ownerInvoice'); // 'PrivateDocs/ownerInvoice'\n    ```\n  \n    @method capitalize\n    @param {String} str The string to capitalize.\n    @return {String} The capitalized string.\n    @public\n  */\n\n\n  function capitalize(str) {\n    return CAPITALIZE_CACHE.get(str);\n  }\n\n  if (_environment.ENV.EXTEND_PROTOTYPES.String) {\n    Object.defineProperties(String.prototype, {\n      /**\n        See [String.w](/ember/release/classes/String/methods/w?anchor=w).\n             @method w\n        @for @ember/string\n        @static\n        @private\n      */\n      w: {\n        configurable: true,\n        enumerable: false,\n        writeable: true,\n\n        value() {\n          return w(this);\n        }\n\n      },\n\n      /**\n        See [String.loc](/ember/release/classes/String/methods/loc?anchor=loc).\n             @method loc\n        @for @ember/string\n        @static\n        @private\n      */\n      loc: {\n        configurable: true,\n        enumerable: false,\n        writeable: true,\n\n        value(...args) {\n          return loc(this, args);\n        }\n\n      },\n\n      /**\n        See [String.camelize](/ember/release/classes/String/methods/camelize?anchor=camelize).\n             @method camelize\n        @for @ember/string\n        @static\n        @private\n      */\n      camelize: {\n        configurable: true,\n        enumerable: false,\n        writeable: true,\n\n        value() {\n          return camelize(this);\n        }\n\n      },\n\n      /**\n        See [String.decamelize](/ember/release/classes/String/methods/decamelize?anchor=decamelize).\n             @method decamelize\n        @for @ember/string\n        @static\n        @private\n      */\n      decamelize: {\n        configurable: true,\n        enumerable: false,\n        writeable: true,\n\n        value() {\n          return decamelize(this);\n        }\n\n      },\n\n      /**\n        See [String.dasherize](/ember/release/classes/String/methods/dasherize?anchor=dasherize).\n             @method dasherize\n        @for @ember/string\n        @static\n        @private\n      */\n      dasherize: {\n        configurable: true,\n        enumerable: false,\n        writeable: true,\n\n        value() {\n          return dasherize(this);\n        }\n\n      },\n\n      /**\n        See [String.underscore](/ember/release/classes/String/methods/underscore?anchor=underscore).\n             @method underscore\n        @for @ember/string\n        @static\n        @private\n      */\n      underscore: {\n        configurable: true,\n        enumerable: false,\n        writeable: true,\n\n        value() {\n          return underscore(this);\n        }\n\n      },\n\n      /**\n        See [String.classify](/ember/release/classes/String/methods/classify?anchor=classify).\n             @method classify\n        @for @ember/string\n        @static\n        @private\n      */\n      classify: {\n        configurable: true,\n        enumerable: false,\n        writeable: true,\n\n        value() {\n          return classify(this);\n        }\n\n      },\n\n      /**\n        See [String.capitalize](/ember/release/classes/String/methods/capitalize?anchor=capitalize).\n             @method capitalize\n        @for @ember/string\n        @static\n        @private\n      */\n      capitalize: {\n        configurable: true,\n        enumerable: false,\n        writeable: true,\n\n        value() {\n          return capitalize(this);\n        }\n\n      }\n    });\n  }\n});","define(\"@ember/string/lib/string_registry\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.setStrings = setStrings;\n  _exports.getStrings = getStrings;\n  _exports.getString = getString;\n  // STATE within a module is frowned upon, this exists\n  // to support Ember.STRINGS but shield ember internals from this legacy global\n  // API.\n  var STRINGS = {};\n\n  function setStrings(strings) {\n    STRINGS = strings;\n  }\n\n  function getStrings() {\n    return STRINGS;\n  }\n\n  function getString(name) {\n    return STRINGS[name];\n  }\n});","define(\"@glimmer/encoder\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.InstructionEncoderImpl = void 0;\n\n  class InstructionEncoderImpl {\n    constructor(buffer) {\n      this.buffer = buffer;\n      this.size = 0;\n    }\n\n    encode(type, machine) {\n      if (type > 255\n      /* TYPE_SIZE */\n      ) {\n          throw new Error(`Opcode type over 8-bits. Got ${type}.`);\n        }\n\n      var first = type | machine | arguments.length - 2 << 8\n      /* ARG_SHIFT */\n      ;\n      this.buffer.push(first);\n\n      for (var i = 2; i < arguments.length; i++) {\n        var op = arguments[i];\n\n        if (typeof op === 'number' && op > 2147483647\n        /* MAX_SIZE */\n        ) {\n            throw new Error(`Operand over 32-bits. Got ${op}.`);\n          }\n\n        this.buffer.push(op);\n      }\n\n      this.size = this.buffer.length;\n    }\n\n    patch(position, target) {\n      if (this.buffer[position + 1] === -1) {\n        this.buffer[position + 1] = target;\n      } else {\n        throw new Error('Trying to patch operand in populated slot instead of a reserved slot.');\n      }\n    }\n\n  }\n\n  _exports.InstructionEncoderImpl = InstructionEncoderImpl;\n});","define(\"@glimmer/env\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.CI = _exports.DEBUG = void 0;\n  var DEBUG = false;\n  _exports.DEBUG = DEBUG;\n  var CI = false;\n  _exports.CI = CI;\n});","define(\"@glimmer/low-level\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.Stack = _exports.Storage = void 0;\n\n  class Storage {\n    constructor() {\n      this.array = [];\n      this.next = 0;\n    }\n\n    add(element) {\n      var {\n        next: slot,\n        array\n      } = this;\n\n      if (slot === array.length) {\n        this.next++;\n      } else {\n        var prev = array[slot];\n        this.next = prev;\n      }\n\n      this.array[slot] = element;\n      return slot;\n    }\n\n    deref(pointer) {\n      return this.array[pointer];\n    }\n\n    drop(pointer) {\n      this.array[pointer] = this.next;\n      this.next = pointer;\n    }\n\n  }\n\n  _exports.Storage = Storage;\n\n  class Stack {\n    constructor(vec = []) {\n      this.vec = vec;\n    }\n\n    clone() {\n      return new Stack(this.vec.slice());\n    }\n\n    sliceFrom(start) {\n      return new Stack(this.vec.slice(start));\n    }\n\n    slice(start, end) {\n      return new Stack(this.vec.slice(start, end));\n    }\n\n    copy(from, to) {\n      this.vec[to] = this.vec[from];\n    } // TODO: how to model u64 argument?\n\n\n    writeRaw(pos, value) {\n      // TODO: Grow?\n      this.vec[pos] = value;\n    } // TODO: partially decoded enum?\n\n\n    getRaw(pos) {\n      return this.vec[pos];\n    }\n\n    reset() {\n      this.vec.length = 0;\n    }\n\n    len() {\n      return this.vec.length;\n    }\n\n  }\n\n  _exports.Stack = Stack;\n});","define(\"@glimmer/node\", [\"exports\", \"@glimmer/runtime\", \"@simple-dom/document\"], function (_exports, _runtime, _document) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.serializeBuilder = serializeBuilder;\n  _exports.NodeDOMTreeConstruction = void 0;\n\n  class NodeDOMTreeConstruction extends _runtime.DOMTreeConstruction {\n    constructor(doc) {\n      super(doc || (0, _document.default)());\n    } // override to prevent usage of `this.document` until after the constructor\n\n\n    setupUselessElement() {}\n\n    insertHTMLBefore(parent, reference, html) {\n      var raw = this.document.createRawHTMLSection(html);\n      parent.insertBefore(raw, reference);\n      return new _runtime.ConcreteBounds(parent, raw, raw);\n    } // override to avoid SVG detection/work when in node (this is not needed in SSR)\n\n\n    createElement(tag) {\n      return this.document.createElement(tag);\n    } // override to avoid namespace shenanigans when in node (this is not needed in SSR)\n\n\n    setAttribute(element, name, value) {\n      element.setAttribute(name, value);\n    }\n\n  }\n\n  _exports.NodeDOMTreeConstruction = NodeDOMTreeConstruction;\n  var TEXT_NODE = 3;\n  var NEEDS_EXTRA_CLOSE = new WeakMap();\n\n  function currentNode(cursor) {\n    var {\n      element,\n      nextSibling\n    } = cursor;\n\n    if (nextSibling === null) {\n      return element.lastChild;\n    } else {\n      return nextSibling.previousSibling;\n    }\n  }\n\n  class SerializeBuilder extends _runtime.NewElementBuilder {\n    constructor() {\n      super(...arguments);\n      this.serializeBlockDepth = 0;\n    }\n\n    __openBlock() {\n      var {\n        tagName\n      } = this.element;\n\n      if (tagName !== 'TITLE' && tagName !== 'SCRIPT' && tagName !== 'STYLE') {\n        var depth = this.serializeBlockDepth++;\n\n        this.__appendComment(`%+b:${depth}%`);\n      }\n\n      super.__openBlock();\n    }\n\n    __closeBlock() {\n      var {\n        tagName\n      } = this.element;\n\n      super.__closeBlock();\n\n      if (tagName !== 'TITLE' && tagName !== 'SCRIPT' && tagName !== 'STYLE') {\n        var depth = --this.serializeBlockDepth;\n\n        this.__appendComment(`%-b:${depth}%`);\n      }\n    }\n\n    __appendHTML(html) {\n      var {\n        tagName\n      } = this.element;\n\n      if (tagName === 'TITLE' || tagName === 'SCRIPT' || tagName === 'STYLE') {\n        return super.__appendHTML(html);\n      } // Do we need to run the html tokenizer here?\n\n\n      var first = this.__appendComment('%glmr%');\n\n      if (tagName === 'TABLE') {\n        var openIndex = html.indexOf('<');\n\n        if (openIndex > -1) {\n          var tr = html.slice(openIndex + 1, openIndex + 3);\n\n          if (tr === 'tr') {\n            html = `<tbody>${html}</tbody>`;\n          }\n        }\n      }\n\n      if (html === '') {\n        this.__appendComment('% %');\n      } else {\n        super.__appendHTML(html);\n      }\n\n      var last = this.__appendComment('%glmr%');\n\n      return new _runtime.ConcreteBounds(this.element, first, last);\n    }\n\n    __appendText(string) {\n      var {\n        tagName\n      } = this.element;\n      var current = currentNode(this);\n\n      if (tagName === 'TITLE' || tagName === 'SCRIPT' || tagName === 'STYLE') {\n        return super.__appendText(string);\n      } else if (string === '') {\n        return this.__appendComment('% %');\n      } else if (current && current.nodeType === TEXT_NODE) {\n        this.__appendComment('%|%');\n      }\n\n      return super.__appendText(string);\n    }\n\n    closeElement() {\n      if (NEEDS_EXTRA_CLOSE.has(this.element)) {\n        NEEDS_EXTRA_CLOSE.delete(this.element);\n        super.closeElement();\n      }\n\n      return super.closeElement();\n    }\n\n    openElement(tag) {\n      if (tag === 'tr') {\n        if (this.element.tagName !== 'TBODY' && this.element.tagName !== 'THEAD' && this.element.tagName !== 'TFOOT') {\n          this.openElement('tbody'); // This prevents the closeBlock comment from being re-parented\n          // under the auto inserted tbody. Rehydration builder needs to\n          // account for the insertion since it is injected here and not\n          // really in the template.\n\n          NEEDS_EXTRA_CLOSE.set(this.constructing, true);\n          this.flushElement(null);\n        }\n      }\n\n      return super.openElement(tag);\n    }\n\n    pushRemoteElement(element, cursorId, insertBefore = null) {\n      var {\n        dom\n      } = this;\n      var script = dom.createElement('script');\n      script.setAttribute('glmr', cursorId);\n      dom.insertBefore(element, script, insertBefore);\n      return super.pushRemoteElement(element, cursorId, insertBefore);\n    }\n\n  }\n\n  function serializeBuilder(env, cursor) {\n    return SerializeBuilder.forInitialRender(env, cursor);\n  }\n});","define(\"@glimmer/opcode-compiler\", [\"exports\", \"@glimmer/vm\", \"@glimmer/util\", \"@glimmer/program\", \"@glimmer/encoder\"], function (_exports, _vm, _util, _program, _encoder) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.compileStatements = compileStatements;\n  _exports.compilable = compilable;\n  _exports.staticComponent = StaticComponent;\n  _exports.invokeStaticBlockWithStack = InvokeStaticBlockWithStack;\n  _exports.invokeStaticBlock = InvokeStaticBlock;\n  _exports.compileStd = compileStd;\n  _exports.meta = meta;\n  _exports.templateFactory = templateFactory;\n  _exports.Component = Component;\n  _exports.resolveLayoutForTag = resolveLayoutForTag;\n  _exports.syntaxCompilationContext = syntaxCompilationContext;\n  _exports.Context = Context;\n  _exports.JitContext = JitContext;\n  _exports.AotContext = AotContext;\n  _exports.templateCompilationContext = templateCompilationContext;\n  _exports.DefaultCompileTimeResolverDelegate = _exports.MINIMAL_CAPABILITIES = _exports.DEFAULT_CAPABILITIES = _exports.JitProgramCompilationContext = _exports.ProgramCompilationContext = _exports.EMPTY_BLOCKS = _exports.WrappedBuilder = _exports.PartialDefinitionImpl = _exports.StdLib = _exports.debugCompiler = _exports.NONE = _exports.UNHANDLED = _exports.MacrosImpl = void 0;\n\n  function arr(value) {\n    return {\n      type: 'array',\n      value\n    };\n  }\n\n  function strArray(value) {\n    return {\n      type: 'string-array',\n      value\n    };\n  }\n\n  function serializable(value) {\n    return {\n      type: 'serializable',\n      value\n    };\n  }\n\n  function templateMeta(value) {\n    return {\n      type: 'template-meta',\n      value\n    };\n  }\n\n  function other(value) {\n    return {\n      type: 'other',\n      value\n    };\n  }\n\n  function label(value) {\n    return {\n      type: 'label',\n      value\n    };\n  }\n\n  function prim(operand, type) {\n    return {\n      type: 'primitive',\n      value: {\n        primitive: operand,\n        type\n      }\n    };\n  }\n\n  var DEFAULT_CAPABILITIES = {\n    dynamicLayout: true,\n    dynamicTag: true,\n    prepareArgs: true,\n    createArgs: true,\n    attributeHook: false,\n    elementHook: false,\n    dynamicScope: true,\n    createCaller: false,\n    updateHook: true,\n    createInstance: true,\n    wrapped: false,\n    willDestroy: false\n  };\n  _exports.DEFAULT_CAPABILITIES = DEFAULT_CAPABILITIES;\n  var MINIMAL_CAPABILITIES = {\n    dynamicLayout: false,\n    dynamicTag: false,\n    prepareArgs: false,\n    createArgs: false,\n    attributeHook: false,\n    elementHook: false,\n    dynamicScope: false,\n    createCaller: false,\n    updateHook: false,\n    createInstance: false,\n    wrapped: false,\n    willDestroy: false\n  };\n  _exports.MINIMAL_CAPABILITIES = MINIMAL_CAPABILITIES;\n\n  class DefaultCompileTimeResolverDelegate {\n    constructor(inner) {\n      this.inner = inner;\n    }\n\n    lookupHelper(name, referrer) {\n      if (this.inner.lookupHelper) {\n        var helper = this.inner.lookupHelper(name, referrer);\n\n        if (helper === undefined) {\n          throw new Error(`Unexpected helper (${name} from ${JSON.stringify(referrer)}) (lookupHelper returned undefined)`);\n        }\n\n        return helper;\n      } else {\n        throw new Error(`Can't compile global helper invocations without an implementation of lookupHelper`);\n      }\n    }\n\n    lookupModifier(name, referrer) {\n      if (this.inner.lookupModifier) {\n        var modifier = this.inner.lookupModifier(name, referrer);\n\n        if (modifier === undefined) {\n          throw new Error(`Unexpected modifier (${name} from ${JSON.stringify(referrer)}) (lookupModifier returned undefined)`);\n        }\n\n        return modifier;\n      } else {\n        throw new Error(`Can't compile global modifier invocations without an implementation of lookupModifier`);\n      }\n    }\n\n    lookupComponent(name, referrer) {\n      if (this.inner.lookupComponent) {\n        var component = this.inner.lookupComponent(name, referrer);\n\n        if (component === undefined) {\n          throw new Error(`Unexpected component (${name} from ${JSON.stringify(referrer)}) (lookupComponent returned undefined)`);\n        }\n\n        return component;\n      } else {\n        throw new Error(`Can't compile global component invocations without an implementation of lookupComponent`);\n      }\n    }\n\n    lookupPartial(name, referrer) {\n      if (this.inner.lookupPartial) {\n        var partial = this.inner.lookupPartial(name, referrer);\n\n        if (partial === undefined) {\n          throw new Error(`Unexpected partial (${name} from ${JSON.stringify(referrer)}) (lookupPartial returned undefined)`);\n        }\n\n        return partial;\n      } else {\n        throw new Error(`Can't compile global partial invocations without an implementation of lookupPartial`);\n      }\n    } // For debugging\n\n\n    resolve(handle) {\n      if (this.inner.resolve) {\n        return this.inner.resolve(handle);\n      } else {\n        throw new Error(`Compile-time debugging requires an implementation of resolve`);\n      }\n    }\n\n  }\n\n  _exports.DefaultCompileTimeResolverDelegate = DefaultCompileTimeResolverDelegate;\n\n  function resolveLayoutForTag(tag, {\n    resolver,\n    meta: {\n      referrer\n    }\n  }) {\n    var component = resolver.lookupComponent(tag, referrer);\n    if (component === null) return component;\n    var {\n      handle,\n      compilable,\n      capabilities\n    } = component;\n    return {\n      handle,\n      compilable,\n      capabilities: capabilities || MINIMAL_CAPABILITIES\n    };\n  }\n  /**\n   * Push a reference onto the stack corresponding to a statically known primitive\n   * @param value A JavaScript primitive (undefined, null, boolean, number or string)\n   */\n\n\n  function PushPrimitiveReference(value) {\n    return [PushPrimitive(value), op(31\n    /* PrimitiveReference */\n    )];\n  }\n  /**\n   * Push an encoded representation of a JavaScript primitive on the stack\n   *\n   * @param value A JavaScript primitive (undefined, null, boolean, number or string)\n   */\n\n\n  function PushPrimitive(primitive) {\n    var p;\n\n    switch (typeof primitive) {\n      case 'number':\n        if ((0, _util.isSmallInt)(primitive)) {\n          p = prim(primitive, 0\n          /* IMMEDIATE */\n          );\n        } else {\n          p = prim(primitive, 2\n          /* NUMBER */\n          );\n        }\n\n        break;\n\n      case 'string':\n        p = prim(primitive, 1\n        /* STRING */\n        );\n        break;\n\n      case 'boolean':\n      case 'object': // assume null\n\n      case 'undefined':\n        p = prim(primitive, 0\n        /* IMMEDIATE */\n        );\n        break;\n\n      default:\n        throw new Error('Invalid primitive passed to pushPrimitive');\n    }\n\n    return op(30\n    /* Primitive */\n    , p);\n  }\n  /**\n   * Invoke a foreign function (a \"helper\") based on a statically known handle\n   *\n   * @param compile.handle A handle\n   * @param compile.params An optional list of expressions to compile\n   * @param compile.hash An optional list of named arguments (name + expression) to compile\n   */\n\n\n  function Call({\n    handle,\n    params,\n    hash\n  }) {\n    return [op(0\n    /* PushFrame */\n    ), op('SimpleArgs', {\n      params,\n      hash,\n      atNames: false\n    }), op(16\n    /* Helper */\n    , handle), op(1\n    /* PopFrame */\n    ), op(36\n    /* Fetch */\n    , _vm.$v0)];\n  }\n  /**\n   * Evaluate statements in the context of new dynamic scope entries. Move entries from the\n   * stack into named entries in the dynamic scope, then evaluate the statements, then pop\n   * the dynamic scope\n   *\n   * @param names a list of dynamic scope names\n   * @param block a function that returns a list of statements to evaluate\n   */\n\n\n  function DynamicScope(names, block) {\n    return [op(59\n    /* PushDynamicScope */\n    ), op(58\n    /* BindDynamicScope */\n    , strArray(names)), block(), op(60\n    /* PopDynamicScope */\n    )];\n  }\n  /**\n   * Yield to a block located at a particular symbol location.\n   *\n   * @param to the symbol containing the block to yield to\n   * @param params optional block parameters to yield to the block\n   */\n\n\n  function YieldBlock(to, params) {\n    return [op('SimpleArgs', {\n      params,\n      hash: null,\n      atNames: true\n    }), op(24\n    /* GetBlock */\n    , to), op(25\n    /* JitSpreadBlock */\n    ), op('Option', op('JitCompileBlock')), op(64\n    /* InvokeYield */\n    ), op(40\n    /* PopScope */\n    ), op(1\n    /* PopFrame */\n    )];\n  }\n  /**\n   * Push an (optional) yieldable block onto the stack. The yieldable block must be known\n   * statically at compile time.\n   *\n   * @param block An optional Compilable block\n   */\n\n\n  function PushYieldableBlock(block) {\n    return [PushSymbolTable(block && block.symbolTable), op(62\n    /* PushBlockScope */\n    ), op('PushCompilable', block)];\n  }\n  /**\n   * Invoke a block that is known statically at compile time.\n   *\n   * @param block a Compilable block\n   */\n\n\n  function InvokeStaticBlock(block) {\n    return [op(0\n    /* PushFrame */\n    ), op('PushCompilable', block), op('JitCompileBlock'), op(2\n    /* InvokeVirtual */\n    ), op(1\n    /* PopFrame */\n    )];\n  }\n  /**\n   * Invoke a static block, preserving some number of stack entries for use in\n   * updating.\n   *\n   * @param block A compilable block\n   * @param callerCount A number of stack entries to preserve\n   */\n\n\n  function InvokeStaticBlockWithStack(block, callerCount) {\n    var {\n      parameters\n    } = block.symbolTable;\n    var calleeCount = parameters.length;\n    var count = Math.min(callerCount, calleeCount);\n\n    if (count === 0) {\n      return InvokeStaticBlock(block);\n    }\n\n    var out = [];\n    out.push(op(0\n    /* PushFrame */\n    ));\n\n    if (count) {\n      out.push(op(39\n      /* ChildScope */\n      ));\n\n      for (var i = 0; i < count; i++) {\n        out.push(op(33\n        /* Dup */\n        , _vm.$fp, callerCount - i));\n        out.push(op(19\n        /* SetVariable */\n        , parameters[i]));\n      }\n    }\n\n    out.push(op('PushCompilable', block));\n    out.push(op('JitCompileBlock'));\n    out.push(op(2\n    /* InvokeVirtual */\n    ));\n\n    if (count) {\n      out.push(op(40\n      /* PopScope */\n      ));\n    }\n\n    out.push(op(1\n    /* PopFrame */\n    ));\n    return out;\n  }\n\n  function PushSymbolTable(table) {\n    if (table) {\n      return op(63\n      /* PushSymbolTable */\n      , serializable(table));\n    } else {\n      return PushPrimitive(null);\n    }\n  }\n\n  function SwitchCases(callback) {\n    // Setup the switch DSL\n    var clauses = [];\n    var count = 0;\n\n    function when(match, callback) {\n      clauses.push({\n        match,\n        callback,\n        label: `CLAUSE${count++}`\n      });\n    } // Call the callback\n\n\n    callback(when); // Emit the opcodes for the switch\n\n    var out = [op(69\n    /* Enter */\n    , 2), op(68\n    /* AssertSame */\n    ), op(32\n    /* ReifyU32 */\n    ), op('StartLabels')]; // First, emit the jump opcodes. We don't need a jump for the last\n    // opcode, since it bleeds directly into its clause.\n\n    for (var clause of clauses.slice(0, -1)) {\n      out.push(op(67\n      /* JumpEq */\n      , label(clause.label), clause.match));\n    } // Enumerate the clauses in reverse order. Earlier matches will\n    // require fewer checks.\n\n\n    for (var i = clauses.length - 1; i >= 0; i--) {\n      var _clause = clauses[i];\n      out.push(op('Label', _clause.label), op(34\n      /* Pop */\n      , 2), _clause.callback()); // The first match is special: it is placed directly before the END\n      // label, so no additional jump is needed at the end of it.\n\n      if (i !== 0) {\n        out.push(op(4\n        /* Jump */\n        , label('END')));\n      }\n    }\n\n    out.push(op('Label', 'END'), op('StopLabels'), op(70\n    /* Exit */\n    ));\n    return out;\n  }\n  /**\n   * A convenience for pushing some arguments on the stack and\n   * running some code if the code needs to be re-executed during\n   * updating execution if some of the arguments have changed.\n   *\n   * # Initial Execution\n   *\n   * The `args` function should push zero or more arguments onto\n   * the stack and return the number of arguments pushed.\n   *\n   * The `body` function provides the instructions to execute both\n   * during initial execution and during updating execution.\n   *\n   * Internally, this function starts by pushing a new frame, so\n   * that the body can return and sets the return point ($ra) to\n   * the ENDINITIAL label.\n   *\n   * It then executes the `args` function, which adds instructions\n   * responsible for pushing the arguments for the block to the\n   * stack. These arguments will be restored to the stack before\n   * updating execution.\n   *\n   * Next, it adds the Enter opcode, which marks the current position\n   * in the DOM, and remembers the current $pc (the next instruction)\n   * as the first instruction to execute during updating execution.\n   *\n   * Next, it runs `body`, which adds the opcodes that should\n   * execute both during initial execution and during updating execution.\n   * If the `body` wishes to finish early, it should Jump to the\n   * `FINALLY` label.\n   *\n   * Next, it adds the FINALLY label, followed by:\n   *\n   * - the Exit opcode, which finalizes the marked DOM started by the\n   *   Enter opcode.\n   * - the Return opcode, which returns to the current return point\n   *   ($ra).\n   *\n   * Finally, it adds the ENDINITIAL label followed by the PopFrame\n   * instruction, which restores $fp, $sp and $ra.\n   *\n   * # Updating Execution\n   *\n   * Updating execution for this `replayable` occurs if the `body` added an\n   * assertion, via one of the `JumpIf`, `JumpUnless` or `AssertSame` opcodes.\n   *\n   * If, during updating executon, the assertion fails, the initial VM is\n   * restored, and the stored arguments are pushed onto the stack. The DOM\n   * between the starting and ending markers is cleared, and the VM's cursor\n   * is set to the area just cleared.\n   *\n   * The return point ($ra) is set to -1, the exit instruction.\n   *\n   * Finally, the $pc is set to to the instruction saved off by the\n   * Enter opcode during initial execution, and execution proceeds as\n   * usual.\n   *\n   * The only difference is that when a `Return` instruction is\n   * encountered, the program jumps to -1 rather than the END label,\n   * and the PopFrame opcode is not needed.\n   */\n\n\n  function Replayable({\n    args: args$$1,\n    body\n  }) {\n    // Push the arguments onto the stack. The args() function\n    // tells us how many stack elements to retain for re-execution\n    // when updating.\n    var {\n      count,\n      actions\n    } = args$$1(); // Start a new label frame, to give END and RETURN\n    // a unique meaning.\n\n    return [op('StartLabels'), op(0\n    /* PushFrame */\n    ), // If the body invokes a block, its return will return to\n    // END. Otherwise, the return in RETURN will return to END.\n    op(6\n    /* ReturnTo */\n    , label('ENDINITIAL')), actions, // Start a new updating closure, remembering `count` elements\n    // from the stack. Everything after this point, and before END,\n    // will execute both initially and to update the block.\n    //\n    // The enter and exit opcodes also track the area of the DOM\n    // associated with this block. If an assertion inside the block\n    // fails (for example, the test value changes from true to false\n    // in an #if), the DOM is cleared and the program is re-executed,\n    // restoring `count` elements to the stack and executing the\n    // instructions between the enter and exit.\n    op(69\n    /* Enter */\n    , count), // Evaluate the body of the block. The body of the block may\n    // return, which will jump execution to END during initial\n    // execution, and exit the updating routine.\n    body(), // All execution paths in the body should run the FINALLY once\n    // they are done. It is executed both during initial execution\n    // and during updating execution.\n    op('Label', 'FINALLY'), // Finalize the DOM.\n    op(70\n    /* Exit */\n    ), // In initial execution, this is a noop: it returns to the\n    // immediately following opcode. In updating execution, this\n    // exits the updating routine.\n    op(5\n    /* Return */\n    ), // Cleanup code for the block. Runs on initial execution\n    // but not on updating.\n    op('Label', 'ENDINITIAL'), op(1\n    /* PopFrame */\n    ), op('StopLabels')];\n  }\n  /**\n   * A specialized version of the `replayable` convenience that allows the\n   * caller to provide different code based upon whether the item at\n   * the top of the stack is true or false.\n   *\n   * As in `replayable`, the `ifTrue` and `ifFalse` code can invoke `return`.\n   *\n   * During the initial execution, a `return` will continue execution\n   * in the cleanup code, which finalizes the current DOM block and pops\n   * the current frame.\n   *\n   * During the updating execution, a `return` will exit the updating\n   * routine, as it can reuse the DOM block and is always only a single\n   * frame deep.\n   */\n\n\n  function ReplayableIf({\n    args: args$$1,\n    ifTrue,\n    ifFalse\n  }) {\n    return Replayable({\n      args: args$$1,\n      body: () => {\n        var out = [// If the conditional is false, jump to the ELSE label.\n        op(66\n        /* JumpUnless */\n        , label('ELSE')), // Otherwise, execute the code associated with the true branch.\n        ifTrue(), // We're done, so return. In the initial execution, this runs\n        // the cleanup code. In the updating VM, it exits the updating\n        // routine.\n        op(4\n        /* Jump */\n        , label('FINALLY')), op('Label', 'ELSE')]; // If the conditional is false, and code associatied ith the\n        // false branch was provided, execute it. If there was no code\n        // associated with the false branch, jumping to the else statement\n        // has no other behavior.\n\n        if (ifFalse) {\n          out.push(ifFalse());\n        }\n\n        return out;\n      }\n    });\n  }\n\n  function pushBuilderOp(context, op$$1) {\n    var {\n      encoder,\n      syntax: {\n        program: {\n          mode,\n          constants\n        }\n      }\n    } = context;\n\n    switch (op$$1.op) {\n      case \"Option\"\n      /* Option */\n      :\n        return concat(context, option$1(op$$1));\n\n      case \"Label\"\n      /* Label */\n      :\n        return encoder.label(op$$1.op1);\n\n      case \"StartLabels\"\n      /* StartLabels */\n      :\n        return encoder.startLabels();\n\n      case \"StopLabels\"\n      /* StopLabels */\n      :\n        return encoder.stopLabels();\n\n      case \"JitCompileBlock\"\n      /* JitCompileBlock */\n      :\n        return concat(context, jitCompileBlock(mode));\n\n      case \"GetComponentLayout\"\n      /* GetComponentLayout */\n      :\n        return encoder.push(constants, compileLayoutOpcode(mode), op$$1.op1);\n\n      case \"SetBlock\"\n      /* SetBlock */\n      :\n        return encoder.push(constants, setBlock(mode), op$$1.op1);\n\n      default:\n        return (0, _util.exhausted)(op$$1);\n    }\n  }\n\n  function option$1(op$$1) {\n    var value = op$$1.op1;\n    return value === null ? NONE : value;\n  }\n\n  function compileLayoutOpcode(mode) {\n    return mode === \"aot\"\n    /* aot */\n    ? 94\n    /* GetAotComponentLayout */\n    : 95\n    /* GetJitComponentLayout */\n    ;\n  }\n\n  function jitCompileBlock(mode) {\n    return mode === \"jit\"\n    /* jit */\n    ? op(61\n    /* CompileBlock */\n    ) : NONE;\n  }\n\n  function setBlock(mode) {\n    return mode === \"aot\"\n    /* aot */\n    ? 20\n    /* SetAotBlock */\n    : 21\n    /* SetJitBlock */\n    ;\n  }\n\n  function pushCompileOp(context, action) {\n    concatStatements(context, compileOp(context, action));\n  }\n\n  function compileOp(context, action) {\n    switch (action.op) {\n      case \"CompileBlock\"\n      /* CompileBlock */\n      :\n        return CompileBlockOp(context, action);\n\n      case \"CompileInline\"\n      /* CompileInline */\n      :\n        return CompileInlineOp(context, action);\n\n      case \"InvokeStatic\"\n      /* InvokeStatic */\n      :\n        return InvokeStatic(context.syntax, action);\n\n      case \"Args\"\n      /* Args */\n      :\n        return CompileArgs(action.op1);\n\n      case \"PushCompilable\"\n      /* PushCompilable */\n      :\n        return PushCompilable(action.op1, context.syntax);\n\n      case \"DynamicComponent\"\n      /* DynamicComponent */\n      :\n        return DynamicComponent(context, action);\n\n      case \"IfResolvedComponent\"\n      /* IfResolvedComponent */\n      :\n        return IfResolvedComponent(context, action);\n\n      default:\n        return (0, _util.exhausted)(action);\n    }\n  }\n\n  function CompileBlockOp(context, op$$1) {\n    return compileBlock(op$$1.op1, context);\n  }\n\n  function CompileInlineOp(context, op$$1) {\n    var {\n      inline,\n      ifUnhandled\n    } = op$$1.op1;\n    var returned = compileInline(inline, context);\n\n    if (isHandled(returned)) {\n      return returned;\n    } else {\n      return ifUnhandled(inline);\n    }\n  }\n\n  function InvokeStatic(context, action) {\n    var compilable$$1 = action.op1;\n\n    if (context.program.mode === \"aot\"\n    /* aot */\n    ) {\n        var handle = compilable$$1.compile(context);\n\n        if (typeof handle !== 'number') {\n          return op('Error', {\n            problem: 'Invalid block',\n            start: 0,\n            end: 0\n          });\n        } // If the handle for the invoked component is not yet known (for example,\n        // because this is a recursive invocation and we're still compiling), push a\n        // function that will produce the correct handle when the heap is\n        // serialized.\n\n\n        if (handle === PLACEHOLDER_HANDLE) {\n          return op(3\n          /* InvokeStatic */\n          , () => compilable$$1.compile(context));\n        } else {\n          return op(3\n          /* InvokeStatic */\n          , handle);\n        }\n      } else {\n      return [op(29\n      /* Constant */\n      , other(action.op1)), op(61\n      /* CompileBlock */\n      ), op(2\n      /* InvokeVirtual */\n      )];\n    }\n  }\n\n  function DynamicComponent(context, action) {\n    var {\n      definition,\n      attrs,\n      params,\n      args: args$$1,\n      blocks,\n      atNames\n    } = action.op1;\n    var attrsBlock = attrs && attrs.length > 0 ? compilableBlock(attrs, context.meta) : null;\n    var compiled = Array.isArray(blocks) || blocks === null ? namedBlocks(blocks, context.meta) : blocks;\n    return InvokeDynamicComponent(context.meta, {\n      definition,\n      attrs: attrsBlock,\n      params,\n      hash: args$$1,\n      atNames,\n      blocks: compiled\n    });\n  }\n\n  function IfResolvedComponent(context, action) {\n    var {\n      name,\n      attrs,\n      blocks,\n      staticTemplate,\n      dynamicTemplate,\n      orElse\n    } = action.op1;\n    var component = resolveLayoutForTag(name, {\n      resolver: context.syntax.program.resolverDelegate,\n      meta: context.meta\n    });\n    var {\n      meta: meta$$1\n    } = context;\n\n    if (component !== null) {\n      var {\n        handle,\n        capabilities,\n        compilable: compilable$$1\n      } = component;\n      var attrsBlock = compilableBlock(attrs, meta$$1);\n      var compilableBlocks = namedBlocks(blocks, meta$$1);\n\n      if (compilable$$1 !== null) {\n        return staticTemplate(handle, capabilities, compilable$$1, {\n          attrs: attrsBlock,\n          blocks: compilableBlocks\n        });\n      } else {\n        return dynamicTemplate(handle, capabilities, {\n          attrs: attrsBlock,\n          blocks: compilableBlocks\n        });\n      }\n    } else if (orElse) {\n      return orElse();\n    } else {\n      throw new Error(`Compile Error: Cannot find component ${name}`);\n    }\n  }\n\n  function PushCompilable(block, context) {\n    if (block === null) {\n      return PushPrimitive(null);\n    } else if (context.program.mode === \"aot\"\n    /* aot */\n    ) {\n        var compiled = block.compile(context);\n\n        if (typeof compiled !== 'number') {\n          return op('Error', {\n            problem: 'Compile Error (TODO: thread better)',\n            start: 0,\n            end: 0\n          });\n        }\n\n        return PushPrimitive(compiled);\n      } else {\n      return op(29\n      /* Constant */\n      , other(block));\n    }\n  }\n\n  function pushOp(encoder, constants, op) {\n    if (op.op3 !== undefined) {\n      encoder.push(constants, op.op, op.op1, op.op2, op.op3);\n    } else if (op.op2 !== undefined) {\n      encoder.push(constants, op.op, op.op1, op.op2);\n    } else if (op.op1 !== undefined) {\n      encoder.push(constants, op.op, op.op1);\n    } else {\n      encoder.push(constants, op.op);\n    }\n  }\n\n  class Compilers {\n    constructor() {\n      this.names = {};\n      this.funcs = [];\n    }\n\n    add(name, func) {\n      this.names[name] = this.funcs.push(func) - 1;\n    }\n\n    compile(sexp, meta) {\n      var name = sexp[0];\n      var index = this.names[name];\n      var func = this.funcs[index];\n      return func(sexp, meta);\n    }\n\n  }\n\n  var EXPRESSIONS = new Compilers();\n  EXPRESSIONS.add(31\n  /* Concat */\n  , ([, parts]) => {\n    var out = [];\n\n    for (var part of parts) {\n      out.push(op('Expr', part));\n    }\n\n    out.push(op(28\n    /* Concat */\n    , parts.length));\n    return out;\n  });\n  EXPRESSIONS.add(30\n  /* Call */\n  , ([, name, params, hash], meta) => {\n    // TODO: triage this in the WF compiler\n    var start = 0;\n    var offset = 0;\n\n    if (isComponent(name, meta)) {\n      if (!params || params.length === 0) {\n        return op('Error', {\n          problem: 'component helper requires at least one argument',\n          start: start,\n          end: start + offset\n        });\n      }\n\n      var [definition, ...restArgs] = params;\n      return curryComponent({\n        definition,\n        params: restArgs,\n        hash,\n        atNames: false\n      }, meta.referrer);\n    }\n\n    var nameOrError = expectString(name, meta, 'Expected call head to be a string');\n\n    if (typeof nameOrError !== 'string') {\n      return nameOrError;\n    }\n\n    return op('IfResolved', {\n      kind: \"Helper\"\n      /* Helper */\n      ,\n      name: nameOrError,\n      andThen: handle => Call({\n        handle,\n        params,\n        hash\n      }),\n      span: {\n        start,\n        end: start + offset\n      }\n    });\n  });\n\n  function isGetContextualFree(opcode) {\n    return opcode[0] >= 34\n    /* GetContextualFreeStart */\n    ;\n  }\n\n  function isComponent(expr, meta) {\n    if (!Array.isArray(expr)) {\n      return false;\n    }\n\n    if (isGetContextualFree(expr)) {\n      var head = expr[1];\n\n      if (meta.upvars && meta.upvars[head] === 'component') {\n        return true;\n      } else {\n        return false;\n      }\n    }\n\n    return false;\n  }\n\n  EXPRESSIONS.add(32\n  /* GetSymbol */\n  , ([, sym, path]) => withPath(op(22\n  /* GetVariable */\n  , sym), path));\n  EXPRESSIONS.add(33\n  /* GetFree */\n  , ([, sym, path]) => withPath(op('ResolveFree', sym), path));\n  EXPRESSIONS.add(34\n  /* GetFreeInAppendSingleId */\n  , ([, sym, path]) => withPath(op('ResolveContextualFree', {\n    freeVar: sym,\n    context: 0\n    /* AppendSingleId */\n\n  }), path));\n  EXPRESSIONS.add(35\n  /* GetFreeInExpression */\n  , ([, sym, path]) => withPath(op('ResolveContextualFree', {\n    freeVar: sym,\n    context: 1\n    /* Expression */\n\n  }), path));\n  EXPRESSIONS.add(36\n  /* GetFreeInCallHead */\n  , ([, sym, path]) => withPath(op('ResolveContextualFree', {\n    freeVar: sym,\n    context: 2\n    /* CallHead */\n\n  }), path));\n  EXPRESSIONS.add(37\n  /* GetFreeInBlockHead */\n  , ([, sym, path]) => withPath(op('ResolveContextualFree', {\n    freeVar: sym,\n    context: 3\n    /* BlockHead */\n\n  }), path));\n  EXPRESSIONS.add(38\n  /* GetFreeInModifierHead */\n  , ([, sym, path]) => withPath(op('ResolveContextualFree', {\n    freeVar: sym,\n    context: 4\n    /* ModifierHead */\n\n  }), path));\n  EXPRESSIONS.add(39\n  /* GetFreeInComponentHead */\n  , ([, sym, path]) => withPath(op('ResolveContextualFree', {\n    freeVar: sym,\n    context: 5\n    /* ComponentHead */\n\n  }), path));\n\n  function withPath(expr, path) {\n    if (path === undefined || path.length === 0) return expr;\n    if (!Array.isArray(expr)) expr = [expr];\n\n    for (var i = 0; i < path.length; i++) {\n      expr.push(op(23\n      /* GetProperty */\n      , path[i]));\n    }\n\n    return expr;\n  }\n\n  EXPRESSIONS.add(29\n  /* Undefined */\n  , () => PushPrimitiveReference(undefined));\n  EXPRESSIONS.add(27\n  /* HasBlock */\n  , ([, block]) => {\n    return [op('Expr', block), op(26\n    /* HasBlock */\n    )];\n  });\n  EXPRESSIONS.add(28\n  /* HasBlockParams */\n  , ([, block]) => [op('Expr', block), op(25\n  /* JitSpreadBlock */\n  ), op('JitCompileBlock'), op(27\n  /* HasBlockParams */\n  )]);\n\n  function pushResolutionOp(encoder, context, operation, constants) {\n    switch (operation.op) {\n      case \"SimpleArgs\"\n      /* SimpleArgs */\n      :\n        concatExpressions(encoder, context, compileSimpleArgs(operation.op1.params, operation.op1.hash, operation.op1.atNames), constants);\n        break;\n\n      case \"Expr\"\n      /* Expr */\n      :\n        concatExpressions(encoder, context, expr(operation.op1, context.meta), constants);\n        break;\n\n      case \"IfResolved\"\n      /* IfResolved */\n      :\n        {\n          concatExpressions(encoder, context, ifResolved(context, operation), constants);\n          break;\n        }\n\n      case \"ResolveFree\"\n      /* ResolveFree */\n      :\n        {\n          throw new Error('Unimplemented HighLevelResolutionOpcode.ResolveFree');\n        }\n\n      case \"ResolveContextualFree\"\n      /* ResolveContextualFree */\n      :\n        {\n          var {\n            freeVar,\n            context: expressionContext\n          } = operation.op1;\n\n          if (context.meta.asPartial) {\n            var name = context.meta.upvars[freeVar];\n            concatExpressions(encoder, context, [op(105\n            /* ResolveMaybeLocal */\n            , name)], constants);\n            break;\n          }\n\n          switch (expressionContext) {\n            case 1\n            /* Expression */\n            :\n              {\n                // in classic mode, this is always a this-fallback\n                var _name2 = context.meta.upvars[freeVar];\n                concatExpressions(encoder, context, [op(22\n                /* GetVariable */\n                , 0), op(23\n                /* GetProperty */\n                , _name2)], constants);\n                break;\n              }\n\n            case 0\n            /* AppendSingleId */\n            :\n              {\n                var resolver = context.syntax.program.resolverDelegate;\n                var _name3 = context.meta.upvars[freeVar];\n                var resolvedHelper = resolver.lookupHelper(_name3, context.meta.referrer);\n                var expressions;\n\n                if (resolvedHelper) {\n                  expressions = Call({\n                    handle: resolvedHelper,\n                    params: null,\n                    hash: null\n                  });\n                } else {\n                  // in classic mode, this is always a this-fallback\n                  expressions = [op(22\n                  /* GetVariable */\n                  , 0), op(23\n                  /* GetProperty */\n                  , _name3)];\n                }\n\n                concatExpressions(encoder, context, expressions, constants);\n                break;\n              }\n\n            default:\n              throw new Error(`unimplemented: Can't evaluate expression in context ${expressionContext}`);\n          }\n\n          break;\n        }\n\n      default:\n        return (0, _util.exhausted)(operation);\n    }\n  }\n\n  function expr(expression$$1, meta$$1) {\n    if (Array.isArray(expression$$1)) {\n      return EXPRESSIONS.compile(expression$$1, meta$$1);\n    } else {\n      return [PushPrimitive(expression$$1), op(31\n      /* PrimitiveReference */\n      )];\n    }\n  }\n\n  function compileSimpleArgs(params, hash, atNames) {\n    var out = [];\n    var {\n      count,\n      actions\n    } = CompilePositional(params);\n    out.push(actions);\n    var flags = count << 4;\n    if (atNames) flags |= 0b1000;\n    var names = _util.EMPTY_ARRAY;\n\n    if (hash) {\n      names = hash[0];\n      var val = hash[1];\n\n      for (var i = 0; i < val.length; i++) {\n        out.push(op('Expr', val[i]));\n      }\n    }\n\n    out.push(op(84\n    /* PushArgs */\n    , strArray(names), strArray(_util.EMPTY_ARRAY), flags));\n    return out;\n  }\n\n  function ifResolved(context, {\n    op1\n  }) {\n    var {\n      kind,\n      name,\n      andThen,\n      orElse,\n      span\n    } = op1;\n    var resolved = resolve(context.syntax.program.resolverDelegate, kind, name, context.meta.referrer);\n\n    if (resolved !== null) {\n      return andThen(resolved);\n    } else if (orElse) {\n      return orElse();\n    } else {\n      return error(`Unexpected ${kind} ${name}`, span.start, span.end);\n    }\n  }\n\n  function resolve(resolver, kind, name, referrer) {\n    switch (kind) {\n      case \"Modifier\"\n      /* Modifier */\n      :\n        return resolver.lookupModifier(name, referrer);\n\n      case \"Helper\"\n      /* Helper */\n      :\n        return resolver.lookupHelper(name, referrer);\n\n      case \"ComponentDefinition\"\n      /* ComponentDefinition */\n      :\n        {\n          var component = resolver.lookupComponent(name, referrer);\n          return component && component.handle;\n        }\n    }\n  }\n\n  var NONE = {\n    'no-action': true\n  };\n  _exports.NONE = NONE;\n  var UNHANDLED = {\n    'not-handled': true\n  };\n  _exports.UNHANDLED = UNHANDLED;\n\n  function isNoAction(actions) {\n    return actions && !!actions['no-action'];\n  }\n\n  function isHandled(actions) {\n    return !actions || !actions['not-handled'];\n  }\n\n  function concat(context, action) {\n    if (isNoAction(action)) {\n      return;\n    } else if (Array.isArray(action)) {\n      for (var item of action) {\n        concat(context, item);\n      }\n    } else if (action.type === 'Simple') {\n      pushBuilderOp(context, action);\n    } else {\n      pushOp(context.encoder, context.syntax.program.constants, action);\n    }\n  }\n\n  function concatExpressions(encoder, context, action, constants) {\n    if (isNoAction(action)) {\n      return;\n    } else if (Array.isArray(action)) {\n      for (var item of action) {\n        concatExpressions(encoder, context, item, constants);\n      }\n    } else if (action.type === 'Number') {\n      pushOp(encoder, constants, action);\n    } else if (action.type === 'Resolution') {\n      pushResolutionOp(encoder, context, action, constants);\n    } else if (action.type === 'Simple') {\n      pushBuilderOp(context, action);\n    } else if (action.type === 'Error') {\n      encoder.error({\n        problem: action.op1.problem,\n        span: {\n          start: action.op1.start,\n          end: action.op1.end\n        }\n      });\n    } else {\n      throw (0, _util.assertNever)(action, 'unexpected action kind');\n    }\n  }\n\n  function concatStatements(context, action) {\n    if (isNoAction(action)) {\n      return;\n    } else if (Array.isArray(action)) {\n      for (var item of action) {\n        concatStatements(context, item);\n      }\n    } else if (action.type === 'Number') {\n      pushOp(context.encoder, context.syntax.program.constants, action);\n    } else {\n      if (action.type === 'Compile') {\n        pushCompileOp(context, action);\n      } else if (action.type === 'Resolution') {\n        pushResolutionOp(context.encoder, context, action, context.syntax.program.constants);\n      } else if (action.type === 'Simple') {\n        pushBuilderOp(context, action);\n      } else if (action.type === 'Error') {} else {\n        throw (0, _util.assertNever)(action, `unexpected action type`);\n      }\n    }\n  }\n\n  function populateBuiltins(blocks, inlines) {\n    blocks.add('if', (params, _hash, blocks) => {\n      if (!params || params.length !== 1) {\n        throw new Error(`SYNTAX ERROR: #if requires a single argument`);\n      }\n\n      return ReplayableIf({\n        args() {\n          return {\n            count: 1,\n            actions: [op('Expr', params[0]), op(71\n            /* ToBoolean */\n            )]\n          };\n        },\n\n        ifTrue() {\n          return InvokeStaticBlock(blocks.get('default'));\n        },\n\n        ifFalse() {\n          if (blocks.has('else')) {\n            return InvokeStaticBlock(blocks.get('else'));\n          } else {\n            return NONE;\n          }\n        }\n\n      });\n    });\n    blocks.add('unless', (params, _hash, blocks) => {\n      if (!params || params.length !== 1) {\n        throw new Error(`SYNTAX ERROR: #unless requires a single argument`);\n      }\n\n      return ReplayableIf({\n        args() {\n          return {\n            count: 1,\n            actions: [op('Expr', params[0]), op(71\n            /* ToBoolean */\n            )]\n          };\n        },\n\n        ifTrue() {\n          if (blocks.has('else')) {\n            return InvokeStaticBlock(blocks.get('else'));\n          } else {\n            return NONE;\n          }\n        },\n\n        ifFalse() {\n          return InvokeStaticBlock(blocks.get('default'));\n        }\n\n      });\n    });\n    blocks.add('with', (params, _hash, blocks) => {\n      if (!params || params.length !== 1) {\n        throw new Error(`SYNTAX ERROR: #with requires a single argument`);\n      }\n\n      return ReplayableIf({\n        args() {\n          return {\n            count: 2,\n            actions: [op('Expr', params[0]), op(33\n            /* Dup */\n            , _vm.$sp, 0), op(71\n            /* ToBoolean */\n            )]\n          };\n        },\n\n        ifTrue() {\n          return InvokeStaticBlockWithStack(blocks.get('default'), 1);\n        },\n\n        ifFalse() {\n          if (blocks.has('else')) {\n            return InvokeStaticBlock(blocks.get('else'));\n          } else {\n            return NONE;\n          }\n        }\n\n      });\n    });\n    blocks.add('let', (params, _hash, blocks) => {\n      if (!params) {\n        return error('let requires arguments', 0, 0);\n      }\n\n      var {\n        count,\n        actions\n      } = CompilePositional(params);\n      return [actions, InvokeStaticBlockWithStack(blocks.get('default'), count)];\n    });\n    blocks.add('each', (params, hash, blocks) => {\n      return Replayable({\n        args() {\n          var actions;\n\n          if (hash && hash[0][0] === 'key') {\n            actions = [op('Expr', hash[1][0])];\n          } else {\n            actions = [PushPrimitiveReference(null)];\n          }\n\n          actions.push(op('Expr', params[0]));\n          return {\n            count: 2,\n            actions\n          };\n        },\n\n        body() {\n          var out = [op(74\n          /* PutIterator */\n          ), op(66\n          /* JumpUnless */\n          , label('ELSE')), op(0\n          /* PushFrame */\n          ), op(33\n          /* Dup */\n          , _vm.$fp, 1), op(6\n          /* ReturnTo */\n          , label('ITER')), op(72\n          /* EnterList */\n          , label('BODY')), op('Label', 'ITER'), op(75\n          /* Iterate */\n          , label('BREAK')), op('Label', 'BODY'), InvokeStaticBlockWithStack(blocks.get('default'), 2), op(34\n          /* Pop */\n          , 2), op(4\n          /* Jump */\n          , label('FINALLY')), op('Label', 'BREAK'), op(73\n          /* ExitList */\n          ), op(1\n          /* PopFrame */\n          ), op(4\n          /* Jump */\n          , label('FINALLY')), op('Label', 'ELSE')];\n\n          if (blocks.has('else')) {\n            out.push(InvokeStaticBlock(blocks.get('else')));\n          }\n\n          return out;\n        }\n\n      });\n    });\n    blocks.add('in-element', (params, hash, blocks) => {\n      if (!params || params.length !== 1) {\n        throw new Error(`SYNTAX ERROR: #in-element requires a single argument`);\n      }\n\n      return ReplayableIf({\n        args() {\n          var [keys, values] = hash;\n          var actions = [];\n\n          for (var i = 0; i < keys.length; i++) {\n            var key = keys[i];\n\n            if (key === 'guid' || key === 'insertBefore') {\n              actions.push(op('Expr', values[i]));\n            } else {\n              throw new Error(`SYNTAX ERROR: #in-element does not take a \\`${keys[0]}\\` option`);\n            }\n          }\n\n          actions.push(op('Expr', params[0]), op(33\n          /* Dup */\n          , _vm.$sp, 0));\n          return {\n            count: 4,\n            actions\n          };\n        },\n\n        ifTrue() {\n          return [op(50\n          /* PushRemoteElement */\n          ), InvokeStaticBlock(blocks.get('default')), op(56\n          /* PopRemoteElement */\n          )];\n        }\n\n      });\n    });\n    blocks.add('-with-dynamic-vars', (_params, hash, blocks) => {\n      if (hash) {\n        var [names, expressions] = hash;\n        var {\n          actions\n        } = CompilePositional(expressions);\n        return [actions, DynamicScope(names, () => {\n          return InvokeStaticBlock(blocks.get('default'));\n        })];\n      } else {\n        return InvokeStaticBlock(blocks.get('default'));\n      }\n    });\n    blocks.add('component', (_params, hash, blocks, context) => {\n      var tag = _params[0];\n\n      if (typeof tag === 'string') {\n        var returned = StaticComponentHelper(context, _params[0], hash, blocks.get('default'));\n        if (isHandled(returned)) return returned;\n      }\n\n      var [definition, ...params] = _params;\n      return op('DynamicComponent', {\n        definition,\n        attrs: null,\n        params,\n        args: hash,\n        atNames: false,\n        blocks\n      });\n    });\n    inlines.add('component', (_name, _params, hash, context) => {\n      var tag = _params && _params[0];\n\n      if (typeof tag === 'string') {\n        var returned = StaticComponentHelper(context, tag, hash, null);\n        if (returned !== UNHANDLED) return returned;\n      }\n\n      var [definition, ...params] = _params;\n      return InvokeDynamicComponent(context.meta, {\n        definition,\n        attrs: null,\n        params,\n        hash,\n        atNames: false,\n        blocks: EMPTY_BLOCKS\n      });\n    });\n    return {\n      blocks,\n      inlines\n    };\n  }\n\n  class MacrosImpl {\n    constructor() {\n      var {\n        blocks,\n        inlines\n      } = populateBuiltins(new Blocks(), new Inlines());\n      this.blocks = blocks;\n      this.inlines = inlines;\n    }\n\n  }\n\n  _exports.MacrosImpl = MacrosImpl;\n\n  class Blocks {\n    constructor() {\n      this.names = (0, _util.dict)();\n      this.funcs = [];\n    }\n\n    add(name, func) {\n      this.funcs.push(func);\n      this.names[name] = this.funcs.length - 1;\n    }\n\n    addMissing(func) {\n      this.missing = func;\n    }\n\n    compile(name, params, hash, blocks, context) {\n      var index = this.names[name];\n      var macroContext = {\n        resolver: context.syntax.program.resolverDelegate,\n        meta: context.meta\n      };\n\n      if (index === undefined) {\n        var func = this.missing;\n        var handled = func(name, params, hash, blocks, macroContext);\n        return handled;\n      } else {\n        var _func = this.funcs[index];\n        return _func(params, hash, blocks, macroContext);\n      }\n    }\n\n  }\n\n  class Inlines {\n    constructor() {\n      this.names = (0, _util.dict)();\n      this.funcs = [];\n    }\n\n    add(name, func) {\n      this.funcs.push(func);\n      this.names[name] = this.funcs.length - 1;\n    }\n\n    addMissing(func) {\n      this.missing = func;\n    }\n\n    compile(sexp, context) {\n      var [, value] = sexp; // TODO: Fix this so that expression macros can return\n      // things like components, so that {{component foo}}\n      // is the same as {{(component foo)}}\n\n      if (!Array.isArray(value)) return UNHANDLED;\n      var name;\n      var params;\n      var hash;\n\n      if (value[0] === 30\n      /* Call */\n      ) {\n          var nameOrError = expectString(value[1], context.meta, 'Expected head of call to be a string');\n\n          if (typeof nameOrError !== 'string') {\n            return nameOrError;\n          }\n\n          name = nameOrError;\n          params = value[2];\n          hash = value[3];\n        } else if (isGet(value)) {\n        var pathName = simplePathName(value, context.meta);\n\n        if (pathName === null) {\n          return UNHANDLED;\n        }\n\n        name = pathName;\n        params = null;\n        hash = null;\n      } else {\n        return UNHANDLED;\n      }\n\n      var index = this.names[name];\n      var macroContext = {\n        resolver: context.syntax.program.resolverDelegate,\n        meta: context.meta\n      };\n\n      if (index === undefined && this.missing) {\n        var func = this.missing;\n        return func(name, params, hash, macroContext);\n      } else if (index !== undefined) {\n        var _func2 = this.funcs[index];\n        return _func2(name, params, hash, macroContext);\n      } else {\n        return UNHANDLED;\n      }\n    }\n\n  }\n\n  function syntaxCompilationContext(program, macros) {\n    return {\n      program,\n      macros\n    };\n  }\n\n  function Context(resolver = {}, mode = \"aot\"\n  /* aot */\n  , macros = new MacrosImpl()) {\n    return {\n      program: new ProgramCompilationContext(new DefaultCompileTimeResolverDelegate(resolver), mode),\n      macros\n    };\n  }\n\n  function JitContext(resolver = {}, macros = new MacrosImpl()) {\n    return {\n      program: new JitProgramCompilationContext(new DefaultCompileTimeResolverDelegate(resolver)),\n      macros\n    };\n  }\n\n  function AotContext(resolver = {}, macros = new MacrosImpl()) {\n    return {\n      program: new ProgramCompilationContext(new DefaultCompileTimeResolverDelegate(resolver), \"aot\"\n      /* aot */\n      ),\n      macros\n    };\n  }\n\n  function templateCompilationContext(syntax, meta) {\n    var encoder = new EncoderImpl();\n    return {\n      syntax,\n      encoder,\n      meta\n    };\n  }\n\n  var STATEMENTS = new Compilers();\n  var INFLATE_ATTR_TABLE = ['class', 'id', 'value', 'name', 'type', 'style', 'href'];\n  var INFLATE_TAG_TABLE = ['div', 'span', 'p', 'a'];\n\n  function inflateTagName(tagName) {\n    return typeof tagName === 'string' ? tagName : INFLATE_TAG_TABLE[tagName];\n  }\n\n  function inflateAttrName(attrName) {\n    return typeof attrName === 'string' ? attrName : INFLATE_ATTR_TABLE[attrName];\n  }\n\n  STATEMENTS.add(3\n  /* Comment */\n  , sexp => op(42\n  /* Comment */\n  , sexp[1]));\n  STATEMENTS.add(13\n  /* CloseElement */\n  , () => op(55\n  /* CloseElement */\n  ));\n  STATEMENTS.add(12\n  /* FlushElement */\n  , () => op(54\n  /* FlushElement */\n  ));\n  STATEMENTS.add(4\n  /* Modifier */\n  , (sexp, meta) => {\n    var [, name, params, hash] = sexp;\n    var stringName = expectString(name, meta, 'Expected modifier head to be a string');\n\n    if (typeof stringName !== 'string') {\n      return stringName;\n    }\n\n    return op('IfResolved', {\n      kind: \"Modifier\"\n      /* Modifier */\n      ,\n      name: stringName,\n      andThen: handle => [op(0\n      /* PushFrame */\n      ), op('SimpleArgs', {\n        params,\n        hash,\n        atNames: false\n      }), op(57\n      /* Modifier */\n      , handle), op(1\n      /* PopFrame */\n      )],\n      span: {\n        start: 0,\n        end: 0\n      }\n    });\n  });\n  STATEMENTS.add(14\n  /* StaticAttr */\n  , ([, name, value, namespace]) => op(51\n  /* StaticAttr */\n  , inflateAttrName(name), value, namespace !== null && namespace !== void 0 ? namespace : null));\n  STATEMENTS.add(24\n  /* StaticComponentAttr */\n  , ([, name, value, namespace]) => op(108\n  /* StaticComponentAttr */\n  , inflateAttrName(name), value, namespace !== null && namespace !== void 0 ? namespace : null));\n  STATEMENTS.add(15\n  /* DynamicAttr */\n  , ([, name, value, namespace]) => [op('Expr', value), op(52\n  /* DynamicAttr */\n  , inflateAttrName(name), false, namespace !== null && namespace !== void 0 ? namespace : null)]);\n  STATEMENTS.add(22\n  /* TrustingDynamicAttr */\n  , ([, name, value, namespace]) => [op('Expr', value), op(52\n  /* DynamicAttr */\n  , inflateAttrName(name), true, namespace !== null && namespace !== void 0 ? namespace : null)]);\n  STATEMENTS.add(16\n  /* ComponentAttr */\n  , ([, name, value, namespace]) => [op('Expr', value), op(53\n  /* ComponentAttr */\n  , inflateAttrName(name), false, namespace !== null && namespace !== void 0 ? namespace : null)]);\n  STATEMENTS.add(23\n  /* TrustingComponentAttr */\n  , ([, name, value, namespace]) => [op('Expr', value), op(53\n  /* ComponentAttr */\n  , inflateAttrName(name), true, namespace !== null && namespace !== void 0 ? namespace : null)]);\n  STATEMENTS.add(10\n  /* OpenElement */\n  , ([, tag]) => {\n    return op(48\n    /* OpenElement */\n    , inflateTagName(tag));\n  });\n  STATEMENTS.add(11\n  /* OpenElementWithSplat */\n  , ([, tag]) => {\n    return [op(91\n    /* PutComponentOperations */\n    ), op(48\n    /* OpenElement */\n    , inflateTagName(tag))];\n  });\n  STATEMENTS.add(8\n  /* Component */\n  , ([, tag, attrs, args$$1, blocks]) => {\n    if (typeof tag === 'string') {\n      return op('IfResolvedComponent', {\n        name: tag,\n        attrs,\n        blocks,\n        staticTemplate: (layoutHandle, capabilities, template, {\n          blocks,\n          attrs\n        }) => {\n          return [op(80\n          /* PushComponentDefinition */\n          , layoutHandle), InvokeStaticComponent({\n            capabilities,\n            layout: template,\n            attrs,\n            params: null,\n            hash: args$$1,\n            blocks\n          })];\n        },\n        dynamicTemplate: (layoutHandle, capabilities, {\n          attrs,\n          blocks\n        }) => {\n          return [op(80\n          /* PushComponentDefinition */\n          , layoutHandle), InvokeComponent({\n            capabilities,\n            attrs,\n            params: null,\n            hash: args$$1,\n            atNames: true,\n            blocks\n          })];\n        }\n      });\n    } else {\n      return op('DynamicComponent', {\n        definition: tag,\n        attrs,\n        params: null,\n        args: args$$1,\n        blocks,\n        atNames: true\n      });\n    }\n  });\n  STATEMENTS.add(19\n  /* Partial */\n  , ([, name, evalInfo], meta) => ReplayableIf({\n    args() {\n      return {\n        count: 2,\n        actions: [op('Expr', name), op(33\n        /* Dup */\n        , _vm.$sp, 0)]\n      };\n    },\n\n    ifTrue() {\n      return [op(104\n      /* InvokePartial */\n      , templateMeta(meta.referrer), strArray(meta.evalSymbols), arr(evalInfo)), op(40\n      /* PopScope */\n      ), op(1\n      /* PopFrame */\n      )];\n    }\n\n  }));\n  STATEMENTS.add(18\n  /* Yield */\n  , ([, to, params]) => YieldBlock(to, params));\n  STATEMENTS.add(17\n  /* AttrSplat */\n  , ([, to]) => YieldBlock(to, _util.EMPTY_ARRAY));\n  STATEMENTS.add(26\n  /* Debugger */\n  , ([, evalInfo], meta) => op(106\n  /* Debugger */\n  , strArray(meta.evalSymbols), arr(evalInfo)));\n  STATEMENTS.add(1\n  /* Append */\n  , sexp => {\n    var [, value] = sexp;\n    return op('CompileInline', {\n      inline: sexp,\n      ifUnhandled: () => [op(0\n      /* PushFrame */\n      ), op(\"Expr\"\n      /* Expr */\n      , value), op(3\n      /* InvokeStatic */\n      , {\n        type: 'stdlib',\n        value: 'cautious-append'\n      }), op(1\n      /* PopFrame */\n      )]\n    });\n  });\n  STATEMENTS.add(2\n  /* TrustingAppend */\n  , sexp => {\n    var [, value] = sexp;\n\n    if (typeof value === 'string') {\n      return op(41\n      /* Text */\n      , value);\n    } // macro was ignoring trusting flag doesn't seem like {{{}}} should\n    // even be passed to macros, there is no {{{component}}}\n\n\n    return [op(0\n    /* PushFrame */\n    ), op(\"Expr\"\n    /* Expr */\n    , value), op(3\n    /* InvokeStatic */\n    , {\n      type: 'stdlib',\n      value: 'trusting-append'\n    }), op(1\n    /* PopFrame */\n    )];\n  });\n  STATEMENTS.add(6\n  /* Block */\n  , sexp => {\n    return op('CompileBlock', sexp);\n  });\n  var PLACEHOLDER_HANDLE = -1;\n\n  class CompilableTemplateImpl {\n    constructor(statements, meta$$1, // Part of CompilableTemplate\n    symbolTable) {\n      this.statements = statements;\n      this.meta = meta$$1;\n      this.symbolTable = symbolTable;\n      this.compiled = null;\n    } // Part of CompilableTemplate\n\n\n    compile(context) {\n      return maybeCompile(this, context);\n    }\n\n  }\n\n  function compilable(layout) {\n    var block = layout.block;\n    return new CompilableTemplateImpl(block.statements, meta(layout), {\n      symbols: block.symbols,\n      hasEval: block.hasEval\n    });\n  }\n\n  function maybeCompile(compilable, context) {\n    if (compilable.compiled !== null) return compilable.compiled;\n    compilable.compiled = PLACEHOLDER_HANDLE;\n    var {\n      statements,\n      meta: meta$$1\n    } = compilable;\n    var result = compileStatements(statements, meta$$1, context);\n    (0, _program.patchStdlibs)(context.program);\n    compilable.compiled = result;\n    return result;\n  }\n\n  function compileStatements(statements, meta$$1, syntaxContext) {\n    var sCompiler = STATEMENTS;\n    var context = templateCompilationContext(syntaxContext, meta$$1);\n\n    for (var i = 0; i < statements.length; i++) {\n      concatStatements(context, sCompiler.compile(statements[i], context.meta));\n    }\n\n    var handle = context.encoder.commit(syntaxContext.program.heap, meta$$1.size);\n    return handle;\n  }\n\n  function compilableBlock(overloadBlock, containing) {\n    var block = Array.isArray(overloadBlock) ? {\n      statements: overloadBlock,\n      parameters: _util.EMPTY_ARRAY\n    } : overloadBlock;\n    return new CompilableTemplateImpl(block.statements, containing, {\n      parameters: block.parameters\n    });\n  }\n\n  class NamedBlocksImpl {\n    constructor(blocks) {\n      this.blocks = blocks;\n      this.names = blocks ? Object.keys(blocks) : [];\n    }\n\n    get(name) {\n      if (!this.blocks) return null;\n      return this.blocks[name] || null;\n    }\n\n    has(name) {\n      var {\n        blocks\n      } = this;\n      return blocks !== null && name in blocks;\n    }\n\n    with(name, block) {\n      var {\n        blocks\n      } = this;\n\n      if (blocks) {\n        return new NamedBlocksImpl((0, _util.assign)({}, blocks, {\n          [name]: block\n        }));\n      } else {\n        return new NamedBlocksImpl({\n          [name]: block\n        });\n      }\n    }\n\n    get hasAny() {\n      return this.blocks !== null;\n    }\n\n  }\n\n  var EMPTY_BLOCKS = new NamedBlocksImpl(null);\n  _exports.EMPTY_BLOCKS = EMPTY_BLOCKS;\n\n  function namedBlocks(blocks, meta) {\n    if (blocks === null) {\n      return EMPTY_BLOCKS;\n    }\n\n    var out = (0, _util.dict)();\n    var [keys, values] = blocks;\n\n    for (var i = 0; i < keys.length; i++) {\n      out[keys[i]] = compilableBlock(values[i], meta);\n    }\n\n    return new NamedBlocksImpl(out);\n  }\n\n  function expectString(expr, meta, desc) {\n    if (!meta.upvars) {\n      return error(`${desc}, but there were no free variables in the template`, 0, 0);\n    }\n\n    if (!Array.isArray(expr)) {\n      throw new Error(`${desc}, got ${JSON.stringify(expr)}`);\n    }\n\n    if (isGet(expr)) {\n      var name = simplePathName(expr, meta);\n      if (name !== null) return name;\n    }\n\n    throw new Error(`${desc}, got ${JSON.stringify(expr)}`);\n  }\n\n  function simplePathName(opcode, meta) {\n    if (opcode.length === 3 && opcode[2].length > 0) {\n      return null;\n    }\n\n    if (isGetFree(opcode)) {\n      return meta.upvars[opcode[1]];\n    }\n\n    return null;\n  }\n\n  function isGet(opcode) {\n    return opcode.length >= 2 && opcode[0] >= 32\n    /* GetSymbol */\n    ;\n  }\n\n  function isGetFree(opcode) {\n    return opcode[0] >= 33\n    /* GetFree */\n    ;\n  }\n\n  function compileInline(sexp, context) {\n    return context.syntax.macros.inlines.compile(sexp, context);\n  }\n\n  function compileBlock(block, context) {\n    var [, name, params, hash, named] = block;\n    var blocks = namedBlocks(named, context.meta);\n    var nameOrError = expectString(name, context.meta, 'Expected block head to be a string');\n\n    if (typeof nameOrError !== 'string') {\n      return nameOrError;\n    }\n\n    return context.syntax.macros.blocks.compile(nameOrError, params || [], hash, blocks, context);\n  }\n\n  function commit(heap, scopeSize, buffer) {\n    var handle = heap.malloc();\n\n    for (var i = 0; i < buffer.length; i++) {\n      var value = buffer[i];\n\n      if (typeof value === 'function') {\n        heap.pushPlaceholder(value);\n      } else if (typeof value === 'object') {\n        heap.pushStdlib(value);\n      } else {\n        heap.push(value);\n      }\n    }\n\n    heap.finishMalloc(handle, scopeSize);\n    return handle;\n  }\n\n  var debugCompiler;\n  _exports.debugCompiler = debugCompiler;\n\n  class LabelsImpl {\n    constructor() {\n      this.labels = (0, _util.dict)();\n      this.targets = [];\n    }\n\n    label(name, index) {\n      this.labels[name] = index;\n    }\n\n    target(at, target) {\n      this.targets.push({\n        at,\n        target\n      });\n    }\n\n    patch(encoder) {\n      var {\n        targets,\n        labels\n      } = this;\n\n      for (var i = 0; i < targets.length; i++) {\n        var {\n          at,\n          target\n        } = targets[i];\n        var address = labels[target] - at;\n        encoder.patch(at, address);\n      }\n    }\n\n  }\n\n  function error(problem, start, end) {\n    return op('Error', {\n      problem,\n      start,\n      end\n    });\n  }\n\n  function op(name, op1, op2, op3) {\n    if (typeof name === 'number') {\n      if (op3 !== undefined) {\n        return {\n          type: 'Number',\n          op: name,\n          op1,\n          op2,\n          op3\n        };\n      } else if (op2 !== undefined) {\n        return {\n          type: 'Number',\n          op: name,\n          op1,\n          op2\n        };\n      } else if (op1 !== undefined) {\n        return {\n          type: 'Number',\n          op: name,\n          op1: op1\n        };\n      } else {\n        return {\n          type: 'Number',\n          op: name\n        };\n      }\n    } else {\n      var type;\n\n      if (isCompileOpcode(name)) {\n        type = 'Compile';\n      } else if (isResolutionOpcode(name)) {\n        type = 'Resolution';\n      } else if (isSimpleOpcode(name)) {\n        type = 'Simple';\n      } else if (isErrorOpcode(name)) {\n        type = 'Error';\n      } else {\n        throw new Error(`Exhausted ${name}`);\n      }\n\n      if (op1 === undefined) {\n        return {\n          type,\n          op: name,\n          op1: undefined\n        };\n      } else {\n        return {\n          type,\n          op: name,\n          op1\n        };\n      }\n    }\n  }\n\n  class EncoderImpl {\n    constructor() {\n      this.labelsStack = new _util.Stack();\n      this.encoder = new _encoder.InstructionEncoderImpl([]);\n      this.errors = [];\n    }\n\n    error(error) {\n      this.encoder.encode(30\n      /* Primitive */\n      , 0);\n      this.errors.push(error);\n    }\n\n    commit(heap, size) {\n      this.encoder.encode(5\n      /* Return */\n      , 1024\n      /* MACHINE_MASK */\n      );\n      var handle = commit(heap, size, this.encoder.buffer);\n\n      if (this.errors.length) {\n        return {\n          errors: this.errors,\n          handle\n        };\n      } else {\n        return handle;\n      }\n    }\n\n    push(constants, name, ...args) {\n      if ((0, _vm.isMachineOp)(name)) {\n        var operands = args.map((operand, i) => this.operand(constants, operand, i));\n        return this.encoder.encode(name, 1024\n        /* MACHINE_MASK */\n        , ...operands);\n      } else {\n        var _operands = args.map((operand, i) => this.operand(constants, operand, i));\n\n        return this.encoder.encode(name, 0, ..._operands);\n      }\n    }\n\n    operand(constants, operand, index) {\n      if (operand && typeof operand === 'object' && operand.type === 'label') {\n        this.currentLabels.target(this.encoder.size + index, operand.value);\n        return -1;\n      }\n\n      return constant(constants, operand);\n    }\n\n    get currentLabels() {\n      return this.labelsStack.current;\n    }\n\n    label(name) {\n      this.currentLabels.label(name, this.encoder.size);\n    }\n\n    startLabels() {\n      this.labelsStack.push(new LabelsImpl());\n    }\n\n    stopLabels() {\n      var label = this.labelsStack.pop();\n      label.patch(this.encoder);\n    }\n\n  }\n\n  function constant(constants, operand) {\n    if (typeof operand === 'number' || typeof operand === 'function') {\n      return operand;\n    }\n\n    if (typeof operand === 'boolean') {\n      return operand === true ? 1 : 0;\n    }\n\n    if (typeof operand === 'string') {\n      return constants.string(operand);\n    }\n\n    if (operand === null) {\n      return 0;\n    }\n\n    switch (operand.type) {\n      case 'array':\n        return constants.array(operand.value);\n\n      case 'string-array':\n        return constants.stringArray(operand.value);\n\n      case 'serializable':\n        return constants.serializable(operand.value);\n\n      case 'template-meta':\n        return constants.templateMeta(operand.value);\n\n      case 'other':\n        // TODO: Bad cast\n        return constants.other(operand.value);\n\n      case 'stdlib':\n        return operand;\n\n      case 'primitive':\n        {\n          switch (operand.value.type) {\n            case 1\n            /* STRING */\n            :\n              return (0, _util.encodeHandle)(constants.string(operand.value.primitive), 1073741823\n              /* STRING_MAX_INDEX */\n              , -1\n              /* STRING_MAX_HANDLE */\n              );\n\n            case 2\n            /* NUMBER */\n            :\n              return (0, _util.encodeHandle)(constants.number(operand.value.primitive), 1073741823\n              /* NUMBER_MAX_INDEX */\n              , -1073741825\n              /* NUMBER_MAX_HANDLE */\n              );\n\n            case 0\n            /* IMMEDIATE */\n            :\n              return (0, _util.encodeImmediate)(operand.value.primitive);\n\n            default:\n              return (0, _util.exhausted)(operand.value);\n          }\n        }\n\n      case 'lookup':\n        throw (0, _util.unreachable)('lookup not reachable');\n\n      default:\n        return (0, _util.exhausted)(operand);\n    }\n  }\n\n  function isSimpleOpcode(op) {\n    return op === 'Label' || op === 'Option' || op === 'GetComponentLayout' || op === 'StartLabels' || op === 'StopLabels' || op === 'SimpleArgs' || op === 'JitCompileBlock' || op === 'SetBlock';\n  }\n\n  function isCompileOpcode(op) {\n    return op === 'CompileInline' || op === 'CompileBlock' || op === 'InvokeStatic' || op === 'PushCompilable' || op === 'Args' || op === 'IfResolvedComponent' || op === 'DynamicComponent';\n  }\n\n  function isResolutionOpcode(op) {\n    return op === 'IfResolved' || op === 'Expr' || op === 'SimpleArgs' || op === 'ResolveFree' || op === 'ResolveContextualFree';\n  }\n\n  function isErrorOpcode(op) {\n    return op === 'Error';\n  }\n  /**\n   * Compile arguments, pushing an Arguments object onto the stack.\n   *\n   * @param args.params\n   * @param args.hash\n   * @param args.blocks\n   * @param args.atNames\n   */\n\n\n  function CompileArgs({\n    params,\n    hash,\n    blocks,\n    atNames\n  }) {\n    var out = [];\n    var blockNames = blocks.names;\n\n    for (var i = 0; i < blockNames.length; i++) {\n      out.push(PushYieldableBlock(blocks.get(blockNames[i])));\n    }\n\n    var {\n      count,\n      actions\n    } = CompilePositional(params);\n    out.push(actions);\n    var flags = count << 4;\n    if (atNames) flags |= 0b1000;\n\n    if (blocks) {\n      flags |= 0b111;\n    }\n\n    var names = _util.EMPTY_ARRAY;\n\n    if (hash) {\n      names = hash[0];\n      var val = hash[1];\n\n      for (var _i = 0; _i < val.length; _i++) {\n        out.push(op('Expr', val[_i]));\n      }\n    }\n\n    out.push(op(84\n    /* PushArgs */\n    , strArray(names), strArray(blockNames), flags));\n    return out;\n  }\n  /**\n   * Compile an optional list of positional arguments, which pushes each argument\n   * onto the stack and returns the number of parameters compiled\n   *\n   * @param params an optional list of positional arguments\n   */\n\n\n  function CompilePositional(params) {\n    if (!params) return {\n      count: 0,\n      actions: NONE\n    };\n    var actions = [];\n\n    for (var i = 0; i < params.length; i++) {\n      actions.push(op('Expr', params[i]));\n    }\n\n    return {\n      count: params.length,\n      actions\n    };\n  }\n\n  function meta(layout) {\n    return {\n      asPartial: layout.asPartial || false,\n      evalSymbols: evalSymbols(layout),\n      upvars: layout.block.upvars,\n      referrer: layout.referrer,\n      size: layout.block.symbols.length\n    };\n  }\n\n  function evalSymbols(layout) {\n    var {\n      block\n    } = layout;\n    return block.hasEval ? block.symbols : null;\n  }\n\n  var ATTRS_BLOCK = '&attrs';\n\n  function StaticComponentHelper(context, tag, hash, template) {\n    var component = resolveLayoutForTag(tag, context);\n\n    if (component !== null) {\n      var {\n        compilable: compilable$$1,\n        handle,\n        capabilities\n      } = component;\n\n      if (compilable$$1) {\n        if (hash) {\n          for (var i = 0; i < hash.length; i = i + 2) {\n            hash[i][0] = `@${hash[i][0]}`;\n          }\n        }\n\n        var out = [op(80\n        /* PushComponentDefinition */\n        , handle)];\n        out.push(InvokeStaticComponent({\n          capabilities,\n          layout: compilable$$1,\n          attrs: null,\n          params: null,\n          hash,\n          blocks: new NamedBlocksImpl({\n            default: template\n          })\n        }));\n        return out;\n      }\n    }\n\n    return UNHANDLED;\n  }\n\n  function InvokeStaticComponent({\n    capabilities,\n    layout,\n    attrs,\n    params,\n    hash,\n    blocks\n  }) {\n    var {\n      symbolTable\n    } = layout;\n    var bailOut = symbolTable.hasEval || capabilities.prepareArgs;\n\n    if (bailOut) {\n      return InvokeComponent({\n        capabilities,\n        attrs,\n        params,\n        hash,\n        atNames: true,\n        blocks,\n        layout\n      });\n    }\n\n    var out = [op(36\n    /* Fetch */\n    , _vm.$s0), op(33\n    /* Dup */\n    , _vm.$sp, 1), op(35\n    /* Load */\n    , _vm.$s0)];\n    var {\n      symbols\n    } = symbolTable;\n\n    if (capabilities.createArgs) {\n      out.push(op(0\n      /* PushFrame */\n      ), op('SimpleArgs', {\n        params,\n        hash,\n        atNames: true\n      }));\n    }\n\n    out.push(op(100\n    /* BeginComponentTransaction */\n    ));\n\n    if (capabilities.dynamicScope) {\n      out.push(op(59\n      /* PushDynamicScope */\n      ));\n    }\n\n    if (capabilities.createInstance) {\n      out.push(op(89\n      /* CreateComponent */\n      , blocks.has('default') | 0, _vm.$s0));\n    }\n\n    if (capabilities.createArgs) {\n      out.push(op(1\n      /* PopFrame */\n      ));\n    }\n\n    out.push(op(0\n    /* PushFrame */\n    ), op(90\n    /* RegisterComponentDestructor */\n    , _vm.$s0));\n    var bindings = [];\n    out.push(op(92\n    /* GetComponentSelf */\n    , _vm.$s0));\n    bindings.push({\n      symbol: 0,\n      isBlock: false\n    });\n\n    for (var i = 0; i < symbols.length; i++) {\n      var symbol = symbols[i];\n\n      switch (symbol.charAt(0)) {\n        case '&':\n          var callerBlock = void 0;\n\n          if (symbol === ATTRS_BLOCK) {\n            callerBlock = attrs;\n          } else {\n            callerBlock = blocks.get(symbol.slice(1));\n          }\n\n          if (callerBlock) {\n            out.push(PushYieldableBlock(callerBlock));\n            bindings.push({\n              symbol: i + 1,\n              isBlock: true\n            });\n          } else {\n            out.push(PushYieldableBlock(null));\n            bindings.push({\n              symbol: i + 1,\n              isBlock: true\n            });\n          }\n\n          break;\n\n        case '@':\n          if (!hash) {\n            break;\n          }\n\n          var [keys, values] = hash;\n          var lookupName = symbol;\n          var index = keys.indexOf(lookupName);\n\n          if (index !== -1) {\n            out.push(op('Expr', values[index]));\n            bindings.push({\n              symbol: i + 1,\n              isBlock: false\n            });\n          }\n\n          break;\n      }\n    }\n\n    out.push(op(37\n    /* RootScope */\n    , symbols.length + 1, Object.keys(blocks).length > 0 ? 1 : 0));\n\n    for (var _i2 = bindings.length - 1; _i2 >= 0; _i2--) {\n      var {\n        symbol: _symbol,\n        isBlock\n      } = bindings[_i2];\n\n      if (isBlock) {\n        out.push(op('SetBlock', _symbol));\n      } else {\n        out.push(op(19\n        /* SetVariable */\n        , _symbol));\n      }\n    }\n\n    out.push(op('InvokeStatic', layout));\n\n    if (capabilities.createInstance) {\n      out.push(op(103\n      /* DidRenderLayout */\n      , _vm.$s0));\n    }\n\n    out.push(op(1\n    /* PopFrame */\n    ), op(40\n    /* PopScope */\n    ));\n\n    if (capabilities.dynamicScope) {\n      out.push(op(60\n      /* PopDynamicScope */\n      ));\n    }\n\n    out.push(op(101\n    /* CommitComponentTransaction */\n    ), op(35\n    /* Load */\n    , _vm.$s0));\n    return out;\n  }\n\n  function InvokeDynamicComponent(meta$$1, {\n    definition,\n    attrs,\n    params,\n    hash,\n    atNames,\n    blocks\n  }) {\n    return Replayable({\n      args: () => {\n        return {\n          count: 2,\n          actions: [op('Expr', definition), op(33\n          /* Dup */\n          , _vm.$sp, 0)]\n        };\n      },\n      body: () => {\n        return [op(66\n        /* JumpUnless */\n        , label('ELSE')), op(83\n        /* ResolveDynamicComponent */\n        , templateMeta(meta$$1.referrer)), op(81\n        /* PushDynamicComponentInstance */\n        ), InvokeComponent({\n          capabilities: true,\n          attrs,\n          params,\n          hash,\n          atNames,\n          blocks\n        }), op('Label', 'ELSE')];\n      }\n    });\n  }\n\n  function WrappedComponent(layout, attrsBlockNumber) {\n    return [op('StartLabels'), WithSavedRegister(_vm.$s1, () => [op(93\n    /* GetComponentTagName */\n    , _vm.$s0), op(31\n    /* PrimitiveReference */\n    ), op(33\n    /* Dup */\n    , _vm.$sp, 0)]), op(66\n    /* JumpUnless */\n    , label('BODY')), op(36\n    /* Fetch */\n    , _vm.$s1), op(91\n    /* PutComponentOperations */\n    ), op(49\n    /* OpenDynamicElement */\n    ), op(102\n    /* DidCreateElement */\n    , _vm.$s0), YieldBlock(attrsBlockNumber, _util.EMPTY_ARRAY), op(54\n    /* FlushElement */\n    ), op('Label', 'BODY'), InvokeStaticBlock(blockForLayout(layout)), op(36\n    /* Fetch */\n    , _vm.$s1), op(66\n    /* JumpUnless */\n    , label('END')), op(55\n    /* CloseElement */\n    ), op('Label', 'END'), op(35\n    /* Load */\n    , _vm.$s1), op('StopLabels')];\n  }\n\n  function StaticComponent(component, args$$1) {\n    var [params, hash, blocks] = args$$1;\n    if (component === null) return NONE;\n    var {\n      compilable: compilable$$1,\n      capabilities,\n      handle\n    } = component;\n\n    if (compilable$$1) {\n      return [op(80\n      /* PushComponentDefinition */\n      , handle), InvokeStaticComponent({\n        capabilities: capabilities || MINIMAL_CAPABILITIES,\n        layout: compilable$$1,\n        attrs: null,\n        params,\n        hash,\n        blocks\n      })];\n    } else {\n      return [op(80\n      /* PushComponentDefinition */\n      , handle), InvokeComponent({\n        capabilities: capabilities || MINIMAL_CAPABILITIES,\n        attrs: null,\n        params,\n        hash,\n        atNames: true,\n        blocks\n      })];\n    }\n  }\n\n  function InvokeComponent({\n    capabilities,\n    attrs,\n    params,\n    hash,\n    atNames,\n    blocks: namedBlocks$$1,\n    layout\n  }) {\n    var bindableBlocks = !!namedBlocks$$1;\n    var bindableAtNames = capabilities === true || capabilities.prepareArgs || !!(hash && hash[0].length !== 0);\n    var blocks = namedBlocks$$1.with('attrs', attrs);\n    return [op(36\n    /* Fetch */\n    , _vm.$s0), op(33\n    /* Dup */\n    , _vm.$sp, 1), op(35\n    /* Load */\n    , _vm.$s0), op(0\n    /* PushFrame */\n    ), op('Args', {\n      params,\n      hash,\n      blocks,\n      atNames\n    }), op(87\n    /* PrepareArgs */\n    , _vm.$s0), invokePreparedComponent(blocks.has('default'), bindableBlocks, bindableAtNames, () => {\n      var out;\n\n      if (layout) {\n        out = [PushSymbolTable(layout.symbolTable), op('PushCompilable', layout), op('JitCompileBlock')];\n      } else {\n        out = [op('GetComponentLayout', _vm.$s0)];\n      }\n\n      out.push(op(98\n      /* PopulateLayout */\n      , _vm.$s0));\n      return out;\n    }), op(35\n    /* Load */\n    , _vm.$s0)];\n  }\n\n  function invokePreparedComponent(hasBlock, bindableBlocks, bindableAtNames, populateLayout = null) {\n    var out = [op(100\n    /* BeginComponentTransaction */\n    ), op(59\n    /* PushDynamicScope */\n    ), op(89\n    /* CreateComponent */\n    , hasBlock | 0, _vm.$s0)]; // this has to run after createComponent to allow\n    // for late-bound layouts, but a caller is free\n    // to populate the layout earlier if it wants to\n    // and do nothing here.\n\n    if (populateLayout) {\n      out.push(populateLayout());\n    }\n\n    out.push(op(90\n    /* RegisterComponentDestructor */\n    , _vm.$s0), op(92\n    /* GetComponentSelf */\n    , _vm.$s0), op(38\n    /* VirtualRootScope */\n    , _vm.$s0), op(19\n    /* SetVariable */\n    , 0), op(97\n    /* SetupForEval */\n    , _vm.$s0), bindableAtNames ? op(17\n    /* SetNamedVariables */\n    , _vm.$s0) : NONE, bindableBlocks ? op(18\n    /* SetBlocks */\n    , _vm.$s0) : NONE, op(34\n    /* Pop */\n    , 1), op(99\n    /* InvokeComponentLayout */\n    , _vm.$s0), op(103\n    /* DidRenderLayout */\n    , _vm.$s0), op(1\n    /* PopFrame */\n    ), op(40\n    /* PopScope */\n    ), op(60\n    /* PopDynamicScope */\n    ), op(101\n    /* CommitComponentTransaction */\n    ));\n    return out;\n  }\n\n  function InvokeBareComponent() {\n    return [op(36\n    /* Fetch */\n    , _vm.$s0), op(33\n    /* Dup */\n    , _vm.$sp, 1), op(35\n    /* Load */\n    , _vm.$s0), op(0\n    /* PushFrame */\n    ), op(85\n    /* PushEmptyArgs */\n    ), op(87\n    /* PrepareArgs */\n    , _vm.$s0), invokePreparedComponent(false, false, true, () => [op('GetComponentLayout', _vm.$s0), op(98\n    /* PopulateLayout */\n    , _vm.$s0)]), op(35\n    /* Load */\n    , _vm.$s0)];\n  }\n\n  function curryComponent({\n    definition,\n    params,\n    hash,\n    atNames\n  }, referrer) {\n    return [op(0\n    /* PushFrame */\n    ), op('SimpleArgs', {\n      params,\n      hash,\n      atNames\n    }), op(88\n    /* CaptureArgs */\n    ), op('Expr', definition), op(79\n    /* CurryComponent */\n    , templateMeta(referrer)), op(1\n    /* PopFrame */\n    ), op(36\n    /* Fetch */\n    , _vm.$v0)];\n  }\n\n  function blockForLayout(layout) {\n    return compilableBlock(layout.block.statements, meta(layout));\n  }\n\n  function WithSavedRegister(register, block) {\n    return [op(36\n    /* Fetch */\n    , register), block(), op(35\n    /* Load */\n    , register)];\n  }\n\n  class StdLib {\n    constructor(main, trustingGuardedAppend, cautiousGuardedAppend) {\n      this.main = main;\n      this.trustingGuardedAppend = trustingGuardedAppend;\n      this.cautiousGuardedAppend = cautiousGuardedAppend;\n    }\n\n    get 'trusting-append'() {\n      return this.trustingGuardedAppend;\n    }\n\n    get 'cautious-append'() {\n      return this.cautiousGuardedAppend;\n    }\n\n    getAppend(trusting) {\n      return trusting ? this.trustingGuardedAppend : this.cautiousGuardedAppend;\n    }\n\n  }\n\n  _exports.StdLib = StdLib;\n\n  function main() {\n    return [op(76\n    /* Main */\n    , _vm.$s0), invokePreparedComponent(false, false, true)];\n  }\n  /**\n   * Append content to the DOM. This standard function triages content and does the\n   * right thing based upon whether it's a string, safe string, component, fragment\n   * or node.\n   *\n   * @param trusting whether to interpolate a string as raw HTML (corresponds to\n   * triple curlies)\n   */\n\n\n  function StdAppend(trusting) {\n    return [op(78\n    /* ContentType */\n    ), SwitchCases(when => {\n      when(1\n      /* String */\n      , () => {\n        if (trusting) {\n          return [op(68\n          /* AssertSame */\n          ), op(43\n          /* AppendHTML */\n          )];\n        } else {\n          return op(47\n          /* AppendText */\n          );\n        }\n      });\n      when(0\n      /* Component */\n      , () => [op(82\n      /* PushCurriedComponent */\n      ), op(81\n      /* PushDynamicComponentInstance */\n      ), InvokeBareComponent()]);\n      when(3\n      /* SafeString */\n      , () => [op(68\n      /* AssertSame */\n      ), op(44\n      /* AppendSafeHTML */\n      )]);\n      when(4\n      /* Fragment */\n      , () => [op(68\n      /* AssertSame */\n      ), op(45\n      /* AppendDocumentFragment */\n      )]);\n      when(5\n      /* Node */\n      , () => [op(68\n      /* AssertSame */\n      ), op(46\n      /* AppendNode */\n      )]);\n    })];\n  }\n\n  function compileStd(context) {\n    var mainHandle = build(context, main);\n    var trustingGuardedAppend = build(context, () => StdAppend(true));\n    var cautiousGuardedAppend = build(context, () => StdAppend(false));\n    return new StdLib(mainHandle, trustingGuardedAppend, cautiousGuardedAppend);\n  }\n\n  var STDLIB_META = {\n    asPartial: false,\n    evalSymbols: null,\n    upvars: null,\n    // TODO: ??\n    referrer: {},\n    size: 0\n  };\n\n  function build(program, callback) {\n    var encoder = new EncoderImpl();\n    var macros = new MacrosImpl();\n    var stdContext = {\n      encoder,\n      meta: STDLIB_META,\n      syntax: {\n        macros,\n        program\n      }\n    };\n    concat(stdContext, callback());\n    var result = encoder.commit(program.heap, 0);\n\n    if (typeof result !== 'number') {\n      // This shouldn't be possible\n      throw new Error(`Unexpected errors compiling std`);\n    } else {\n      return result;\n    }\n  }\n\n  class ProgramCompilationContext {\n    constructor(delegate, mode) {\n      this.mode = mode;\n      this.constants = new _program.WriteOnlyConstants();\n      this.heap = new _program.HeapImpl();\n      this.resolverDelegate = delegate;\n      this.stdlib = compileStd(this);\n    }\n\n  }\n\n  _exports.ProgramCompilationContext = ProgramCompilationContext;\n\n  class JitProgramCompilationContext {\n    constructor(delegate) {\n      this.constants = new _program.JitConstants();\n      this.heap = new _program.HeapImpl();\n      this.mode = \"jit\"\n      /* jit */\n      ;\n      this.resolverDelegate = delegate;\n      this.stdlib = compileStd(this);\n    }\n\n  }\n\n  _exports.JitProgramCompilationContext = JitProgramCompilationContext;\n\n  class PartialDefinitionImpl {\n    constructor(name, // for debugging\n    template) {\n      this.name = name;\n      this.template = template;\n    }\n\n    getPartial(context) {\n      var partial = (0, _util.unwrapTemplate)(this.template).asPartial();\n      var handle = partial.compile(context);\n      return {\n        symbolTable: partial.symbolTable,\n        handle\n      };\n    }\n\n  }\n\n  _exports.PartialDefinitionImpl = PartialDefinitionImpl;\n\n  class WrappedBuilder {\n    constructor(layout) {\n      this.layout = layout;\n      this.compiled = null;\n      var {\n        block\n      } = layout;\n      var symbols = block.symbols.slice(); // ensure ATTRS_BLOCK is always included (only once) in the list of symbols\n\n      var attrsBlockIndex = symbols.indexOf(ATTRS_BLOCK);\n\n      if (attrsBlockIndex === -1) {\n        this.attrsBlockNumber = symbols.push(ATTRS_BLOCK);\n      } else {\n        this.attrsBlockNumber = attrsBlockIndex + 1;\n      }\n\n      this.symbolTable = {\n        hasEval: block.hasEval,\n        symbols\n      };\n    }\n\n    compile(syntax) {\n      if (this.compiled !== null) return this.compiled;\n      var m = meta(this.layout);\n      var context = templateCompilationContext(syntax, m);\n      var actions = WrappedComponent(this.layout, this.attrsBlockNumber);\n      concatStatements(context, actions);\n      var handle = context.encoder.commit(context.syntax.program.heap, m.size);\n\n      if (typeof handle !== 'number') {\n        return handle;\n      }\n\n      this.compiled = handle;\n      (0, _program.patchStdlibs)(context.syntax.program);\n      return handle;\n    }\n\n  }\n\n  _exports.WrappedBuilder = WrappedBuilder;\n  var clientId = 0;\n\n  function templateFactory({\n    id: templateId,\n    meta,\n    block\n  }) {\n    var parsedBlock;\n    var id = templateId || `client-${clientId++}`;\n\n    var create = envMeta => {\n      var newMeta = envMeta ? (0, _util.assign)({}, envMeta, meta) : meta;\n\n      if (!parsedBlock) {\n        parsedBlock = JSON.parse(block);\n      }\n\n      return new TemplateImpl({\n        id,\n        block: parsedBlock,\n        referrer: newMeta\n      });\n    };\n\n    return {\n      id,\n      meta,\n      create\n    };\n  }\n\n  class TemplateImpl {\n    constructor(parsedLayout) {\n      this.parsedLayout = parsedLayout;\n      this.result = 'ok';\n      this.layout = null;\n      this.partial = null;\n      this.wrappedLayout = null;\n      var {\n        block\n      } = parsedLayout;\n      this.symbols = block.symbols;\n      this.hasEval = block.hasEval;\n      this.referrer = parsedLayout.referrer;\n      this.id = parsedLayout.id || `client-${clientId++}`;\n    }\n\n    asLayout() {\n      if (this.layout) return this.layout;\n      return this.layout = compilable((0, _util.assign)({}, this.parsedLayout, {\n        asPartial: false\n      }));\n    }\n\n    asPartial() {\n      if (this.partial) return this.partial;\n      return this.layout = compilable((0, _util.assign)({}, this.parsedLayout, {\n        asPartial: true\n      }));\n    }\n\n    asWrappedLayout() {\n      if (this.wrappedLayout) return this.wrappedLayout;\n      return this.wrappedLayout = new WrappedBuilder((0, _util.assign)({}, this.parsedLayout, {\n        asPartial: false\n      }));\n    }\n\n  }\n\n  function Component(serialized, envMeta) {\n    var parsed = JSON.parse(serialized);\n    var factory = templateFactory(parsed);\n    var template = (0, _util.unwrapTemplate)(factory.create(envMeta));\n    return template.asLayout();\n  }\n});","define(\"@glimmer/program\", [\"exports\", \"@glimmer/util\"], function (_exports, _util) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.hydrateHeap = hydrateHeap;\n  _exports.hydrateProgram = hydrateProgram;\n  _exports.patchStdlibs = patchStdlibs;\n  _exports.programArtifacts = programArtifacts;\n  _exports.artifacts = artifacts;\n  _exports.RuntimeOpImpl = _exports.RuntimeProgramImpl = _exports.HeapImpl = _exports.RuntimeHeapImpl = _exports.JitConstants = _exports.RuntimeConstantsImpl = _exports.WriteOnlyConstants = _exports.WELL_KNOWN_EMPTY_ARRAY_POSITION = void 0;\n  var UNRESOLVED = {};\n  var WELL_KNOWN_EMPTY_ARRAY_POSITION = 0;\n  _exports.WELL_KNOWN_EMPTY_ARRAY_POSITION = WELL_KNOWN_EMPTY_ARRAY_POSITION;\n  var WELL_KNOW_EMPTY_ARRAY = Object.freeze([]);\n\n  class WriteOnlyConstants {\n    constructor() {\n      // `0` means NULL\n      this.strings = [];\n      this.arrays = [WELL_KNOW_EMPTY_ARRAY];\n      this.tables = [];\n      this.handles = [];\n      this.resolved = [];\n      this.numbers = [];\n      this.others = [];\n    }\n\n    other(other) {\n      return this.others.push(other) - 1;\n    }\n\n    string(value) {\n      var index = this.strings.indexOf(value);\n\n      if (index > -1) {\n        return index;\n      }\n\n      return this.strings.push(value) - 1;\n    }\n\n    stringArray(strings) {\n      var _strings = new Array(strings.length);\n\n      for (var i = 0; i < strings.length; i++) {\n        _strings[i] = this.string(strings[i]);\n      }\n\n      return this.array(_strings);\n    }\n\n    array(values) {\n      if (values.length === 0) {\n        return WELL_KNOWN_EMPTY_ARRAY_POSITION;\n      }\n\n      var index = this.arrays.indexOf(values);\n\n      if (index > -1) {\n        return index;\n      }\n\n      return this.arrays.push(values) - 1;\n    }\n\n    serializable(value) {\n      var str = JSON.stringify(value);\n      var index = this.strings.indexOf(str);\n\n      if (index > -1) {\n        return index;\n      }\n\n      return this.strings.push(str) - 1;\n    }\n\n    templateMeta(value) {\n      return this.serializable(value);\n    }\n\n    number(number) {\n      var index = this.numbers.indexOf(number);\n\n      if (index > -1) {\n        return index;\n      }\n\n      return this.numbers.push(number) - 1;\n    }\n\n    toPool() {\n      return {\n        strings: this.strings,\n        arrays: this.arrays,\n        handles: this.handles,\n        numbers: this.numbers\n      };\n    }\n\n  }\n\n  _exports.WriteOnlyConstants = WriteOnlyConstants;\n\n  class RuntimeConstantsImpl {\n    constructor(pool) {\n      this.strings = pool.strings;\n      this.arrays = pool.arrays;\n      this.handles = pool.handles;\n      this.numbers = pool.numbers;\n      this.others = [];\n    }\n\n    getString(value) {\n      return this.strings[value];\n    }\n\n    getNumber(value) {\n      return this.numbers[value];\n    }\n\n    getStringArray(value) {\n      var names = this.getArray(value);\n\n      var _names = new Array(names.length);\n\n      for (var i = 0; i < names.length; i++) {\n        var n = names[i];\n        _names[i] = this.getString(n);\n      }\n\n      return _names;\n    }\n\n    getArray(value) {\n      return this.arrays[value];\n    }\n\n    getSerializable(s) {\n      return JSON.parse(this.strings[s]);\n    }\n\n    getTemplateMeta(m) {\n      return this.getSerializable(m);\n    }\n\n    getOther(value) {\n      return this.others[value];\n    }\n\n  }\n\n  _exports.RuntimeConstantsImpl = RuntimeConstantsImpl;\n\n  class JitConstants extends WriteOnlyConstants {\n    constructor(pool) {\n      super();\n      this.metas = [];\n\n      if (pool) {\n        this.strings = pool.strings;\n        this.arrays = pool.arrays;\n        this.handles = pool.handles;\n        this.resolved = this.handles.map(() => UNRESOLVED);\n        this.numbers = pool.numbers;\n      }\n\n      this.others = [];\n    }\n\n    templateMeta(meta) {\n      var index = this.metas.indexOf(meta);\n\n      if (index > -1) {\n        return index;\n      }\n\n      return this.metas.push(meta) - 1;\n    }\n\n    getNumber(value) {\n      return this.numbers[value];\n    }\n\n    getString(value) {\n      return this.strings[value];\n    }\n\n    getStringArray(value) {\n      var names = this.getArray(value);\n\n      var _names = new Array(names.length);\n\n      for (var i = 0; i < names.length; i++) {\n        var n = names[i];\n        _names[i] = this.getString(n);\n      }\n\n      return _names;\n    }\n\n    getArray(value) {\n      return this.arrays[value];\n    }\n\n    getSerializable(s) {\n      return JSON.parse(this.strings[s]);\n    }\n\n    getTemplateMeta(m) {\n      return this.metas[m];\n    }\n\n    getOther(value) {\n      return this.others[value];\n    }\n\n  }\n\n  _exports.JitConstants = JitConstants;\n\n  class RuntimeOpImpl {\n    constructor(heap) {\n      this.heap = heap;\n      this.offset = 0;\n    }\n\n    get size() {\n      var rawType = this.heap.getbyaddr(this.offset);\n      return ((rawType & 768\n      /* OPERAND_LEN_MASK */\n      ) >> 8\n      /* ARG_SHIFT */\n      ) + 1;\n    }\n\n    get isMachine() {\n      var rawType = this.heap.getbyaddr(this.offset);\n      return rawType & 1024\n      /* MACHINE_MASK */\n      ? 1 : 0;\n    }\n\n    get type() {\n      return this.heap.getbyaddr(this.offset) & 255\n      /* TYPE_MASK */\n      ;\n    }\n\n    get op1() {\n      return this.heap.getbyaddr(this.offset + 1);\n    }\n\n    get op2() {\n      return this.heap.getbyaddr(this.offset + 2);\n    }\n\n    get op3() {\n      return this.heap.getbyaddr(this.offset + 3);\n    }\n\n  }\n\n  _exports.RuntimeOpImpl = RuntimeOpImpl;\n\n  function encodeTableInfo(scopeSize, state) {\n    return state | scopeSize << 2;\n  }\n\n  function changeState(info, newState) {\n    return info | newState << 30;\n  }\n\n  var PAGE_SIZE = 0x100000;\n\n  class RuntimeHeapImpl {\n    constructor(serializedHeap) {\n      var {\n        buffer,\n        table\n      } = serializedHeap;\n      this.heap = new Int32Array(buffer);\n      this.table = table;\n    } // It is illegal to close over this address, as compaction\n    // may move it. However, it is legal to use this address\n    // multiple times between compactions.\n\n\n    getaddr(handle) {\n      return this.table[handle];\n    }\n\n    getbyaddr(address) {\n      return this.heap[address];\n    }\n\n    sizeof(handle) {\n      return sizeof(this.table, handle);\n    }\n\n    scopesizeof(handle) {\n      return scopesizeof(this.table, handle);\n    }\n\n  }\n\n  _exports.RuntimeHeapImpl = RuntimeHeapImpl;\n\n  function hydrateHeap(serializedHeap) {\n    return new RuntimeHeapImpl(serializedHeap);\n  }\n  /**\n   * The Heap is responsible for dynamically allocating\n   * memory in which we read/write the VM's instructions\n   * from/to. When we malloc we pass out a VMHandle, which\n   * is used as an indirect way of accessing the memory during\n   * execution of the VM. Internally we track the different\n   * regions of the memory in an int array known as the table.\n   *\n   * The table 32-bit aligned and has the following layout:\n   *\n   * | ... | hp (u32) |       info (u32)   | size (u32) |\n   * | ... |  Handle  | Scope Size | State | Size       |\n   * | ... | 32bits   | 30bits     | 2bits | 32bit      |\n   *\n   * With this information we effectively have the ability to\n   * control when we want to free memory. That being said you\n   * can not free during execution as raw address are only\n   * valid during the execution. This means you cannot close\n   * over them as you will have a bad memory access exception.\n   */\n\n\n  class HeapImpl {\n    constructor() {\n      this.placeholders = [];\n      this.stdlibs = [];\n      this.offset = 0;\n      this.handle = 0;\n      this.capacity = PAGE_SIZE;\n      this.heap = new Int32Array(PAGE_SIZE);\n      this.table = [];\n    }\n\n    push(item) {\n      this.sizeCheck();\n      this.heap[this.offset++] = item;\n    }\n\n    sizeCheck() {\n      if (this.capacity === 0) {\n        var heap = slice(this.heap, 0, this.offset);\n        this.heap = new Int32Array(heap.length + PAGE_SIZE);\n        this.heap.set(heap, 0);\n        this.capacity = PAGE_SIZE;\n      }\n\n      this.capacity--;\n    }\n\n    getbyaddr(address) {\n      return this.heap[address];\n    }\n\n    setbyaddr(address, value) {\n      this.heap[address] = value;\n    }\n\n    malloc() {\n      // push offset, info, size\n      this.table.push(this.offset, 0, 0);\n      var handle = this.handle;\n      this.handle += 3\n      /* ENTRY_SIZE */\n      ;\n      return handle;\n    }\n\n    finishMalloc(handle, scopeSize) {\n      this.table[handle + 1\n      /* INFO_OFFSET */\n      ] = encodeTableInfo(scopeSize, 0\n      /* Allocated */\n      );\n    }\n\n    size() {\n      return this.offset;\n    } // It is illegal to close over this address, as compaction\n    // may move it. However, it is legal to use this address\n    // multiple times between compactions.\n\n\n    getaddr(handle) {\n      return this.table[handle];\n    }\n\n    gethandle(address) {\n      this.table.push(address, encodeTableInfo(0, 3\n      /* Pointer */\n      ), 0);\n      var handle = this.handle;\n      this.handle += 3\n      /* ENTRY_SIZE */\n      ;\n      return handle;\n    }\n\n    sizeof(handle) {\n      return sizeof(this.table, handle);\n    }\n\n    scopesizeof(handle) {\n      return scopesizeof(this.table, handle);\n    }\n\n    free(handle) {\n      var info = this.table[handle + 1\n      /* INFO_OFFSET */\n      ];\n      this.table[handle + 1\n      /* INFO_OFFSET */\n      ] = changeState(info, 1\n      /* Freed */\n      );\n    }\n    /**\n     * The heap uses the [Mark-Compact Algorithm](https://en.wikipedia.org/wiki/Mark-compact_algorithm) to shift\n     * reachable memory to the bottom of the heap and freeable\n     * memory to the top of the heap. When we have shifted all\n     * the reachable memory to the top of the heap, we move the\n     * offset to the next free position.\n     */\n\n\n    compact() {\n      var compactedSize = 0;\n      var {\n        table,\n        table: {\n          length\n        },\n        heap\n      } = this;\n\n      for (var i = 0; i < length; i += 3\n      /* ENTRY_SIZE */\n      ) {\n        var offset = table[i];\n        var info = table[i + 1\n        /* INFO_OFFSET */\n        ]; // @ts-ignore (this whole function is currently unused)\n\n        var size = info & Size.SIZE_MASK;\n        var state = info & 3\n        /* STATE_MASK */\n        >> 30;\n\n        if (state === 2\n        /* Purged */\n        ) {\n            continue;\n          } else if (state === 1\n        /* Freed */\n        ) {\n            // transition to \"already freed\" aka \"purged\"\n            // a good improvement would be to reuse\n            // these slots\n            table[i + 1\n            /* INFO_OFFSET */\n            ] = changeState(info, 2\n            /* Purged */\n            );\n            compactedSize += size;\n          } else if (state === 0\n        /* Allocated */\n        ) {\n            for (var j = offset; j <= i + size; j++) {\n              heap[j - compactedSize] = heap[j];\n            }\n\n            table[i] = offset - compactedSize;\n          } else if (state === 3\n        /* Pointer */\n        ) {\n            table[i] = offset - compactedSize;\n          }\n      }\n\n      this.offset = this.offset - compactedSize;\n    }\n\n    pushPlaceholder(valueFunc) {\n      this.sizeCheck();\n      var address = this.offset++;\n      this.heap[address] = 2147483647\n      /* MAX_SIZE */\n      ;\n      this.placeholders.push([address, valueFunc]);\n    }\n\n    pushStdlib(operand) {\n      this.sizeCheck();\n      var address = this.offset++;\n      this.heap[address] = 2147483647\n      /* MAX_SIZE */\n      ;\n      this.stdlibs.push([address, operand]);\n    }\n\n    patchPlaceholders() {\n      var {\n        placeholders\n      } = this;\n\n      for (var i = 0; i < placeholders.length; i++) {\n        var [address, getValue] = placeholders[i];\n        this.setbyaddr(address, getValue());\n      }\n    }\n\n    patchStdlibs(stdlib) {\n      var {\n        stdlibs\n      } = this;\n\n      for (var i = 0; i < stdlibs.length; i++) {\n        var [address, {\n          value\n        }] = stdlibs[i];\n        this.setbyaddr(address, stdlib[value]);\n      }\n\n      this.stdlibs = [];\n    }\n\n    capture(stdlib, offset = this.offset) {\n      this.patchPlaceholders();\n      this.patchStdlibs(stdlib); // Only called in eager mode\n\n      var buffer = slice(this.heap, 0, offset).buffer;\n      return {\n        handle: this.handle,\n        table: this.table,\n        buffer: buffer\n      };\n    }\n\n  }\n\n  _exports.HeapImpl = HeapImpl;\n\n  class RuntimeProgramImpl {\n    constructor(constants, heap) {\n      this.constants = constants;\n      this.heap = heap;\n      this._opcode = new RuntimeOpImpl(this.heap);\n    }\n\n    static hydrate(artifacts) {\n      var heap = new RuntimeHeapImpl(artifacts.heap);\n      var constants = new RuntimeConstantsImpl(artifacts.constants);\n      return new RuntimeProgramImpl(constants, heap);\n    }\n\n    opcode(offset) {\n      this._opcode.offset = offset;\n      return this._opcode;\n    }\n\n  }\n\n  _exports.RuntimeProgramImpl = RuntimeProgramImpl;\n\n  function hydrateProgram(artifacts) {\n    var heap = new RuntimeHeapImpl(artifacts.heap);\n    var constants = new RuntimeConstantsImpl(artifacts.constants);\n    return new RuntimeProgramImpl(constants, heap);\n  }\n\n  function slice(arr, start, end) {\n    if (arr.slice !== undefined) {\n      return arr.slice(start, end);\n    }\n\n    var ret = new Int32Array(end);\n\n    for (; start < end; start++) {\n      ret[start] = arr[start];\n    }\n\n    return ret;\n  }\n\n  function sizeof(table, handle) {\n    {\n      return -1;\n    }\n  }\n\n  function scopesizeof(table, handle) {\n    var info = table[handle + 1\n    /* INFO_OFFSET */\n    ];\n    return info >> 2;\n  }\n\n  function patchStdlibs(program) {\n    program.heap.patchStdlibs(program.stdlib);\n  }\n\n  function programArtifacts(program) {\n    var heap = program.heap.capture(program.stdlib);\n    var constants = program.constants.toPool();\n    return {\n      heap,\n      constants\n    };\n  }\n\n  function artifacts(syntax) {\n    return programArtifacts(syntax.program);\n  }\n});","define(\"@glimmer/reference\", [\"exports\", \"@glimmer/util\", \"@glimmer/validator\"], function (_exports, _util, _validator) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.isModified = isModified;\n  _exports.IterableImpl = _exports.IterationItemReference = _exports.PropertyReference = _exports.HelperRootReference = _exports.ComponentRootReference = _exports.RootReference = _exports.UPDATE_REFERENCED_VALUE = _exports.IteratorSynchronizer = _exports.ReferenceIterator = _exports.IterationArtifacts = _exports.END = _exports.ListItem = _exports.ConstReference = _exports.ReferenceCache = _exports.CachedReference = void 0;\n\n  class CachedReference {\n    constructor() {\n      this.lastRevision = null;\n      this.lastValue = null;\n    }\n\n    value() {\n      var {\n        tag,\n        lastRevision,\n        lastValue\n      } = this;\n\n      if (lastRevision === null || !(0, _validator.validateTag)(tag, lastRevision)) {\n        lastValue = this.lastValue = this.compute();\n        this.lastRevision = (0, _validator.valueForTag)(tag);\n      }\n\n      return lastValue;\n    }\n\n    invalidate() {\n      this.lastRevision = null;\n    }\n\n  } //////////\n\n\n  _exports.CachedReference = CachedReference;\n\n  class ReferenceCache {\n    constructor(reference) {\n      this.lastValue = null;\n      this.lastRevision = null;\n      this.initialized = false;\n      this.tag = reference.tag;\n      this.reference = reference;\n    }\n\n    peek() {\n      if (!this.initialized) {\n        return this.initialize();\n      }\n\n      return this.lastValue;\n    }\n\n    revalidate() {\n      if (!this.initialized) {\n        return this.initialize();\n      }\n\n      var {\n        reference,\n        lastRevision\n      } = this;\n      var tag = reference.tag;\n      if ((0, _validator.validateTag)(tag, lastRevision)) return NOT_MODIFIED;\n      var {\n        lastValue\n      } = this;\n      var currentValue = reference.value();\n      this.lastRevision = (0, _validator.valueForTag)(tag);\n      if (currentValue === lastValue) return NOT_MODIFIED;\n      this.lastValue = currentValue;\n      return currentValue;\n    }\n\n    initialize() {\n      var {\n        reference\n      } = this;\n      var currentValue = this.lastValue = reference.value();\n      this.lastRevision = (0, _validator.valueForTag)(reference.tag);\n      this.initialized = true;\n      return currentValue;\n    }\n\n  }\n\n  _exports.ReferenceCache = ReferenceCache;\n  var NOT_MODIFIED = (0, _util.symbol)('NOT_MODIFIED');\n\n  function isModified(value) {\n    return value !== NOT_MODIFIED;\n  }\n\n  class PrimitiveReference {\n    constructor(inner) {\n      this.inner = inner;\n      this.tag = _validator.CONSTANT_TAG;\n    }\n\n    value() {\n      return this.inner;\n    }\n\n    get(_key) {\n      return UNDEFINED_REFERENCE;\n    }\n\n  }\n\n  var UNDEFINED_REFERENCE = new PrimitiveReference(undefined);\n\n  class ConstReference {\n    constructor(inner) {\n      this.inner = inner;\n      this.tag = _validator.CONSTANT_TAG;\n    }\n\n    value() {\n      return this.inner;\n    }\n\n    get(_key) {\n      return UNDEFINED_REFERENCE;\n    }\n\n  }\n\n  _exports.ConstReference = ConstReference;\n\n  class ListItem extends _util.ListNode {\n    constructor(iterable, result) {\n      super(iterable.valueReferenceFor(result));\n      this.retained = false;\n      this.seen = false;\n      this.key = result.key;\n      this.iterable = iterable;\n      this.memo = iterable.memoReferenceFor(result);\n    }\n\n    update(item) {\n      this.retained = true;\n      this.iterable.updateValueReference(this.value, item);\n      this.iterable.updateMemoReference(this.memo, item);\n    }\n\n    shouldRemove() {\n      return !this.retained;\n    }\n\n    reset() {\n      this.retained = false;\n      this.seen = false;\n    }\n\n  }\n\n  _exports.ListItem = ListItem;\n\n  class IterationArtifacts {\n    constructor(iterable) {\n      this.iterator = null;\n      this.map = new Map();\n      this.list = new _util.LinkedList();\n      this.tag = iterable.tag;\n      this.iterable = iterable;\n    }\n\n    isEmpty() {\n      var iterator = this.iterator = this.iterable.iterate();\n      return iterator.isEmpty();\n    }\n\n    iterate() {\n      var iterator;\n\n      if (this.iterator === null) {\n        iterator = this.iterable.iterate();\n      } else {\n        iterator = this.iterator;\n      }\n\n      this.iterator = null;\n      return iterator;\n    }\n\n    advanceToKey(key, current) {\n      var seek = current;\n\n      while (seek !== null && seek.key !== key) {\n        seek = this.advanceNode(seek);\n      }\n\n      return seek;\n    }\n\n    has(key) {\n      return this.map.has(key);\n    }\n\n    get(key) {\n      return this.map.get(key);\n    }\n\n    wasSeen(key) {\n      var node = this.map.get(key);\n      return node !== undefined && node.seen;\n    }\n\n    update(item) {\n      var found = this.get(item.key);\n      found.update(item);\n      return found;\n    }\n\n    append(item) {\n      var {\n        map,\n        list,\n        iterable\n      } = this;\n      var node = new ListItem(iterable, item);\n      map.set(item.key, node);\n      list.append(node);\n      return node;\n    }\n\n    insertBefore(item, reference) {\n      var {\n        map,\n        list,\n        iterable\n      } = this;\n      var node = new ListItem(iterable, item);\n      map.set(item.key, node);\n      node.retained = true;\n      list.insertBefore(node, reference);\n      return node;\n    }\n\n    move(item, reference) {\n      var {\n        list\n      } = this;\n      item.retained = true;\n      list.remove(item);\n      list.insertBefore(item, reference);\n    }\n\n    remove(item) {\n      var {\n        list\n      } = this;\n      list.remove(item);\n      this.map.delete(item.key);\n    }\n\n    nextNode(item) {\n      return this.list.nextNode(item);\n    }\n\n    advanceNode(item) {\n      item.seen = true;\n      return this.list.nextNode(item);\n    }\n\n    head() {\n      return this.list.head();\n    }\n\n  }\n\n  _exports.IterationArtifacts = IterationArtifacts;\n\n  class ReferenceIterator {\n    // if anyone needs to construct this object with something other than\n    // an iterable, let @wycats know.\n    constructor(iterable) {\n      this.iterator = null;\n      var artifacts = new IterationArtifacts(iterable);\n      this.artifacts = artifacts;\n    }\n\n    next() {\n      var {\n        artifacts\n      } = this;\n      var iterator = this.iterator = this.iterator || artifacts.iterate();\n      var item = iterator.next();\n      if (item === null) return null;\n      return artifacts.append(item);\n    }\n\n  }\n\n  _exports.ReferenceIterator = ReferenceIterator;\n  var Phase;\n\n  (function (Phase) {\n    Phase[Phase[\"Append\"] = 0] = \"Append\";\n    Phase[Phase[\"Prune\"] = 1] = \"Prune\";\n    Phase[Phase[\"Done\"] = 2] = \"Done\";\n  })(Phase || (Phase = {}));\n\n  var END = (0, _util.symbol)('END');\n  _exports.END = END;\n\n  class IteratorSynchronizer {\n    constructor({\n      target,\n      artifacts,\n      env\n    }) {\n      this.target = target;\n      this.artifacts = artifacts;\n      this.iterator = artifacts.iterate();\n      this.current = artifacts.head();\n      this.env = env;\n    }\n\n    sync() {\n      var phase = Phase.Append;\n\n      while (true) {\n        switch (phase) {\n          case Phase.Append:\n            phase = this.nextAppend();\n            break;\n\n          case Phase.Prune:\n            phase = this.nextPrune();\n            break;\n\n          case Phase.Done:\n            this.nextDone();\n            return;\n        }\n      }\n    }\n\n    advanceToKey(key) {\n      var {\n        current,\n        artifacts\n      } = this;\n      if (current === null) return;\n      var next = artifacts.advanceNode(current);\n\n      if (next.key === key) {\n        this.current = artifacts.advanceNode(next);\n        return;\n      }\n\n      var seek = artifacts.advanceToKey(key, current);\n\n      if (seek) {\n        this.move(seek, current);\n        this.current = artifacts.nextNode(current);\n      }\n    }\n\n    move(item, reference) {\n      if (item.next !== reference) {\n        this.artifacts.move(item, reference);\n        this.target.move(this.env, item.key, item.value, item.memo, reference ? reference.key : END);\n      }\n    }\n\n    nextAppend() {\n      var {\n        iterator,\n        current,\n        artifacts\n      } = this;\n      var item = iterator.next();\n\n      if (item === null) {\n        return this.startPrune();\n      }\n\n      var {\n        key\n      } = item;\n\n      if (current !== null && current.key === key) {\n        this.nextRetain(item, current);\n      } else if (artifacts.has(key)) {\n        this.nextMove(item);\n      } else {\n        this.nextInsert(item);\n      }\n\n      return Phase.Append;\n    }\n\n    nextRetain(item, current) {\n      var {\n        artifacts\n      } = this; // current = expect(current, 'BUG: current is empty');\n\n      current.update(item);\n      this.current = artifacts.nextNode(current);\n      this.target.retain(this.env, item.key, current.value, current.memo);\n    }\n\n    nextMove(item) {\n      var {\n        current,\n        artifacts\n      } = this;\n      var {\n        key\n      } = item;\n      var found = artifacts.update(item);\n\n      if (artifacts.wasSeen(key)) {\n        this.move(found, current);\n      } else {\n        this.advanceToKey(key);\n      }\n    }\n\n    nextInsert(item) {\n      var {\n        artifacts,\n        target,\n        current\n      } = this;\n      var node = artifacts.insertBefore(item, current);\n      target.insert(this.env, node.key, node.value, node.memo, current ? current.key : null);\n    }\n\n    startPrune() {\n      this.current = this.artifacts.head();\n      return Phase.Prune;\n    }\n\n    nextPrune() {\n      var {\n        artifacts,\n        target,\n        current\n      } = this;\n\n      if (current === null) {\n        return Phase.Done;\n      }\n\n      var node = current;\n      this.current = artifacts.nextNode(node);\n\n      if (node.shouldRemove()) {\n        artifacts.remove(node);\n        target.delete(this.env, node.key);\n      } else {\n        node.reset();\n      }\n\n      return Phase.Prune;\n    }\n\n    nextDone() {\n      this.target.done(this.env);\n    }\n\n  }\n\n  _exports.IteratorSynchronizer = IteratorSynchronizer;\n  var UPDATE_REFERENCED_VALUE = (0, _util.symbol)('UPDATE_REFERENCED_VALUE');\n  /**\n   * RootReferences refer to a constant root value within a template. For\n   * instance, the `this` in `{{this.some.prop}}`. This is typically a:\n   *\n   * - Component\n   * - Controller\n   * - Helper\n   *\n   * Or another \"top level\" template construct, if you will. PropertyReferences\n   * chain off a root reference in the template, and can then be passed around and\n   * used at will.\n   */\n\n  _exports.UPDATE_REFERENCED_VALUE = UPDATE_REFERENCED_VALUE;\n\n  class RootReference {\n    constructor(env) {\n      this.env = env;\n      this.children = (0, _util.dict)();\n      this.tag = _validator.CONSTANT_TAG;\n    }\n\n    get(key) {\n      // References should in general be identical to one another, so we can usually\n      // deduplicate them in production. However, in DEBUG we need unique references\n      // so we can properly key off them for the logging context.\n      if (true\n      /* DEBUG */\n      ) {\n        // We register the template debug context now since the reference is\n        // created before the component itself. It shouldn't be possible to cause\n        // errors when accessing the root, only subproperties of the root, so this\n        // should be fine for the time being. The exception is helpers, but they\n        // set their context earlier.\n        //\n        // TODO: This points to a need for more first class support for arguments in\n        // the debugRenderTree. The fact that we can't accurately relate an argument\n        // reference to its component is problematic for debug tooling.\n        if (!this.didSetupDebugContext) {\n          this.didSetupDebugContext = true;\n          this.env.setTemplatePathDebugContext(this, this.debugLogName || 'this', null);\n        }\n\n        return new PropertyReference(this, key, this.env);\n      } else {\n        var ref = this.children[key];\n\n        if (ref === undefined) {\n          ref = this.children[key] = new PropertyReference(this, key, this.env);\n        }\n\n        return ref;\n      }\n    }\n\n  }\n\n  _exports.RootReference = RootReference;\n\n  class ComponentRootReference extends RootReference {\n    constructor(inner, env) {\n      super(env);\n      this.inner = inner;\n    }\n\n    value() {\n      return this.inner;\n    }\n\n  }\n\n  _exports.ComponentRootReference = ComponentRootReference;\n\n  class HelperRootReference extends RootReference {\n    constructor(fn, args, env, debugName) {\n      super(env);\n      this.fn = fn;\n      this.args = args;\n      this.computeRevision = null;\n      this.computeTag = null;\n\n      if (true\n      /* DEBUG */\n      ) {\n        var name = debugName || fn.name;\n        env.setTemplatePathDebugContext(this, `(result of a \\`${name}\\` helper)`, null);\n        this.didSetupDebugContext = true;\n      }\n\n      if ((0, _validator.isConst)(args)) {\n        this.compute();\n      }\n\n      var {\n        tag,\n        computeTag\n      } = this;\n\n      if (computeTag !== null && (0, _validator.isConstTag)(computeTag)) {\n        // If the args are constant, and the first computation is constant, then\n        // the helper itself is constant and will never update.\n        tag = this.tag = _validator.CONSTANT_TAG;\n        this.computeRevision = (0, _validator.valueForTag)(tag);\n      } else {\n        var valueTag = this.valueTag = (0, _validator.createUpdatableTag)();\n        tag = this.tag = (0, _validator.combine)([args.tag, valueTag]);\n\n        if (computeTag !== null) {\n          // We computed once, so setup the cache state correctly\n          (0, _validator.updateTag)(valueTag, computeTag);\n          this.computeRevision = (0, _validator.valueForTag)(tag);\n        }\n      }\n    }\n\n    compute() {\n      this.computeTag = (0, _validator.track)(() => {\n        this.computeValue = this.fn(this.args);\n      }, true\n      /* DEBUG */\n      && this.env.getTemplatePathDebugContext(this));\n    }\n\n    value() {\n      var {\n        tag,\n        computeRevision\n      } = this;\n\n      if (computeRevision === null || !(0, _validator.validateTag)(tag, computeRevision)) {\n        this.compute();\n        (0, _validator.updateTag)(this.valueTag, this.computeTag);\n        this.computeRevision = (0, _validator.valueForTag)(tag);\n      }\n\n      return this.computeValue;\n    }\n\n  }\n  /**\n   * PropertyReferences represent a property that has been accessed on a root, or\n   * another property (or iterable, see below). `some` and `prop` in\n   * `{{this.some.prop}}` are each property references, `some` being a property of\n   * `this`, and `prop` being a property of `some`. They are constructed by\n   * recursively calling `get` on the previous reference as a template chain is\n   * followed.\n   */\n\n\n  _exports.HelperRootReference = HelperRootReference;\n\n  class PropertyReference {\n    constructor(parentReference, propertyKey, env) {\n      this.parentReference = parentReference;\n      this.propertyKey = propertyKey;\n      this.env = env;\n      this.children = (0, _util.dict)();\n      this.lastRevision = null;\n\n      if (true\n      /* DEBUG */\n      ) {\n        env.setTemplatePathDebugContext(this, propertyKey, parentReference);\n      }\n\n      var valueTag = this.valueTag = (0, _validator.createUpdatableTag)();\n      var parentReferenceTag = parentReference.tag;\n      this.tag = (0, _validator.combine)([parentReferenceTag, valueTag]);\n    }\n\n    value() {\n      var {\n        tag,\n        lastRevision,\n        lastValue,\n        parentReference,\n        valueTag,\n        propertyKey\n      } = this;\n\n      if (lastRevision === null || !(0, _validator.validateTag)(tag, lastRevision)) {\n        var parentValue = parentReference.value();\n\n        if ((0, _util.isDict)(parentValue)) {\n          var combined = (0, _validator.track)(() => {\n            lastValue = this.env.getPath(parentValue, propertyKey);\n          }, true\n          /* DEBUG */\n          && this.env.getTemplatePathDebugContext(this));\n          (0, _validator.updateTag)(valueTag, combined);\n        } else {\n          lastValue = undefined;\n        }\n\n        this.lastValue = lastValue;\n        this.lastRevision = (0, _validator.valueForTag)(tag);\n      }\n\n      return lastValue;\n    }\n\n    get(key) {\n      // References should in general be identical to one another, so we can usually\n      // deduplicate them in production. However, in DEBUG we need unique references\n      // so we can properly key off them for the logging context.\n      if (true\n      /* DEBUG */\n      ) {\n        return new PropertyReference(this, key, this.env);\n      } else {\n        var ref = this.children[key];\n\n        if (ref === undefined) {\n          ref = this.children[key] = new PropertyReference(this, key, this.env);\n        }\n\n        return ref;\n      }\n    }\n\n    [UPDATE_REFERENCED_VALUE](value) {\n      var {\n        parentReference,\n        propertyKey\n      } = this;\n      var parentValue = parentReference.value();\n      this.env.setPath(parentValue, propertyKey, value);\n    }\n\n  } //////////\n\n  /**\n   * IterationItemReferences represent an individual item in an iterable `each`.\n   * They are similar to PropertyReferences, but since iteration items need to be\n   * updated they have slightly different behavior. Concretely, they are the\n   * `item` in:\n   *\n   * ```hbs\n   * {{#each this.items as |item|}}\n   *   {{item.foo}}\n   * {{/each}}\n   * ```\n   *\n   * Properties can chain off an iteration item, just like with the other template\n   * reference types.\n   */\n\n\n  _exports.PropertyReference = PropertyReference;\n\n  class IterationItemReference {\n    constructor(parentReference, itemValue, itemKey, env) {\n      this.parentReference = parentReference;\n      this.itemValue = itemValue;\n      this.env = env;\n      this.tag = (0, _validator.createUpdatableTag)();\n      this.children = (0, _util.dict)();\n\n      if (true\n      /* DEBUG */\n      ) {\n        env.setTemplatePathDebugContext(this, (0, _util.debugToString)(itemKey), parentReference);\n      }\n    }\n\n    value() {\n      return this.itemValue;\n    }\n\n    update(value) {\n      (0, _validator.dirtyTag)(this.tag);\n      this.itemValue = value;\n    }\n\n    get(key) {\n      // References should in general be identical to one another, so we can usually\n      // deduplicate them in production. However, in DEBUG we need unique references\n      // so we can properly key off them for the logging context.\n      if (true\n      /* DEBUG */\n      ) {\n        return new PropertyReference(this, key, this.env);\n      } else {\n        var ref = this.children[key];\n\n        if (ref === undefined) {\n          ref = this.children[key] = new PropertyReference(this, key, this.env);\n        }\n\n        return ref;\n      }\n    }\n\n  }\n\n  _exports.IterationItemReference = IterationItemReference;\n  var NULL_IDENTITY = {};\n\n  var KEY = (_, index) => index;\n\n  var INDEX = (_, index) => String(index);\n\n  var IDENTITY = item => {\n    if (item === null) {\n      // Returning null as an identity will cause failures since the iterator\n      // can't tell that it's actually supposed to be null\n      return NULL_IDENTITY;\n    }\n\n    return item;\n  };\n\n  function keyForPath(path, getPath) {\n    if (true\n    /* DEBUG */\n    && path[0] === '@') {\n      throw new Error(`invalid keypath: '${path}', valid keys: @index, @identity, or a path`);\n    }\n\n    return uniqueKeyFor(item => getPath(item, path));\n  }\n\n  function makeKeyFor(key, getPath) {\n    switch (key) {\n      case '@key':\n        return uniqueKeyFor(KEY);\n\n      case '@index':\n        return uniqueKeyFor(INDEX);\n\n      case '@identity':\n        return uniqueKeyFor(IDENTITY);\n\n      default:\n        return keyForPath(key, getPath);\n    }\n  }\n\n  class WeakMapWithPrimitives {\n    get weakMap() {\n      if (this._weakMap === undefined) {\n        this._weakMap = new WeakMap();\n      }\n\n      return this._weakMap;\n    }\n\n    get primitiveMap() {\n      if (this._primitiveMap === undefined) {\n        this._primitiveMap = new Map();\n      }\n\n      return this._primitiveMap;\n    }\n\n    set(key, value) {\n      if ((0, _util.isObject)(key) || typeof key === 'function') {\n        this.weakMap.set(key, value);\n      } else {\n        this.primitiveMap.set(key, value);\n      }\n    }\n\n    get(key) {\n      if ((0, _util.isObject)(key) || typeof key === 'function') {\n        return this.weakMap.get(key);\n      } else {\n        return this.primitiveMap.get(key);\n      }\n    }\n\n  }\n\n  var IDENTITIES = new WeakMapWithPrimitives();\n\n  function identityForNthOccurence(value, count) {\n    var identities = IDENTITIES.get(value);\n\n    if (identities === undefined) {\n      identities = [];\n      IDENTITIES.set(value, identities);\n    }\n\n    var identity = identities[count];\n\n    if (identity === undefined) {\n      identity = {\n        value,\n        count\n      };\n      identities[count] = identity;\n    }\n\n    return identity;\n  }\n  /**\n   * When iterating over a list, it's possible that an item with the same unique\n   * key could be encountered twice:\n   *\n   * ```js\n   * let arr = ['same', 'different', 'same', 'same'];\n   * ```\n   *\n   * In general, we want to treat these items as _unique within the list_. To do\n   * this, we track the occurences of every item as we iterate the list, and when\n   * an item occurs more than once, we generate a new unique key just for that\n   * item, and that occurence within the list. The next time we iterate the list,\n   * and encounter an item for the nth time, we can get the _same_ key, and let\n   * Glimmer know that it should reuse the DOM for the previous nth occurence.\n   */\n\n\n  function uniqueKeyFor(keyFor) {\n    var seen = new WeakMapWithPrimitives();\n    return (value, memo) => {\n      var key = keyFor(value, memo);\n      var count = seen.get(key) || 0;\n      seen.set(key, count + 1);\n\n      if (count === 0) {\n        return key;\n      }\n\n      return identityForNthOccurence(key, count);\n    };\n  }\n\n  class IterableImpl {\n    constructor(parentRef, key, env) {\n      this.parentRef = parentRef;\n      this.key = key;\n      this.env = env;\n      this.tag = parentRef.tag;\n    }\n\n    iterate() {\n      var {\n        parentRef,\n        key,\n        env\n      } = this;\n      var iterable = parentRef.value();\n      var keyFor = makeKeyFor(key, env.getPath);\n\n      if (Array.isArray(iterable)) {\n        return new ArrayIterator(iterable, keyFor);\n      }\n\n      var maybeIterator = env.toIterator(iterable);\n\n      if (maybeIterator === null) {\n        return new ArrayIterator(_util.EMPTY_ARRAY, () => null);\n      }\n\n      return new IteratorWrapper(maybeIterator, keyFor);\n    }\n\n    valueReferenceFor(item) {\n      var {\n        parentRef,\n        env\n      } = this;\n      return new IterationItemReference(parentRef, item.value, item.memo, env);\n    }\n\n    updateValueReference(reference, item) {\n      reference.update(item.value);\n    }\n\n    memoReferenceFor(item) {\n      var {\n        parentRef,\n        env\n      } = this;\n      return new IterationItemReference(parentRef, item.memo, true\n      /* DEBUG */\n      ? `(key: ${(0, _util.debugToString)(item.key)}` : '', env);\n    }\n\n    updateMemoReference(reference, item) {\n      reference.update(item.memo);\n    }\n\n  }\n\n  _exports.IterableImpl = IterableImpl;\n\n  class IteratorWrapper {\n    constructor(inner, keyFor) {\n      this.inner = inner;\n      this.keyFor = keyFor;\n    }\n\n    isEmpty() {\n      return this.inner.isEmpty();\n    }\n\n    next() {\n      var nextValue = this.inner.next();\n\n      if (nextValue !== null) {\n        nextValue.key = this.keyFor(nextValue.value, nextValue.memo);\n      }\n\n      return nextValue;\n    }\n\n  }\n\n  class ArrayIterator {\n    constructor(iterator, keyFor) {\n      this.iterator = iterator;\n      this.keyFor = keyFor;\n      this.pos = 0;\n\n      if (iterator.length === 0) {\n        this.current = {\n          kind: 'empty'\n        };\n      } else {\n        this.current = {\n          kind: 'first',\n          value: iterator[this.pos]\n        };\n      }\n    }\n\n    isEmpty() {\n      return this.current.kind === 'empty';\n    }\n\n    next() {\n      var value;\n      var current = this.current;\n\n      if (current.kind === 'first') {\n        this.current = {\n          kind: 'progress'\n        };\n        value = current.value;\n      } else if (this.pos >= this.iterator.length - 1) {\n        return null;\n      } else {\n        value = this.iterator[++this.pos];\n      }\n\n      var {\n        keyFor\n      } = this;\n      var key = keyFor(value, this.pos);\n      var memo = this.pos;\n      return {\n        key,\n        value,\n        memo\n      };\n    }\n\n  }\n});","define(\"@glimmer/runtime\", [\"exports\", \"@glimmer/util\", \"@glimmer/reference\", \"@glimmer/program\", \"@glimmer/vm\", \"@glimmer/validator\", \"@glimmer/low-level\"], function (_exports, _util, _reference, _program, _vm2, _validator, _lowLevel) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.clear = clear;\n  _exports.capabilityFlagsFrom = capabilityFlagsFrom;\n  _exports.hasCapability = hasCapability;\n  _exports.resetDebuggerCallback = resetDebuggerCallback;\n  _exports.setDebuggerCallback = setDebuggerCallback;\n  _exports.curry = curry;\n  _exports.isCurriedComponentDefinition = isCurriedComponentDefinition;\n  _exports.isWhitespace = isWhitespace;\n  _exports.normalizeProperty = normalizeProperty;\n  _exports.AotRuntime = AotRuntime;\n  _exports.JitRuntime = JitRuntime;\n  _exports.inTransaction = inTransaction;\n  _exports.getDynamicVar = getDynamicVar;\n  _exports.renderAot = renderAot;\n  _exports.renderAotComponent = renderAotComponent;\n  _exports.renderAotMain = renderAotMain;\n  _exports.renderJitComponent = renderJitComponent;\n  _exports.renderJitMain = renderJitMain;\n  _exports.renderSync = renderSync;\n  _exports.dynamicAttribute = dynamicAttribute;\n  _exports.clientBuilder = clientBuilder;\n  _exports.isSerializationFirstNode = isSerializationFirstNode;\n  _exports.rehydrationBuilder = rehydrationBuilder;\n  _exports.TEMPLATE_ONLY_COMPONENT = _exports.SimpleComponentManager = _exports.SERIALIZATION_FIRST_NODE_STRING = _exports.RehydrateBuilder = _exports.RemoteLiveBlock = _exports.UpdatableBlockImpl = _exports.NewElementBuilder = _exports.SimpleDynamicAttribute = _exports.DynamicAttribute = _exports.CapturedPositionalArgumentsImpl = _exports.CapturedNamedArgumentsImpl = _exports.CapturedArgumentsImpl = _exports.EMPTY_ARGS = _exports.LowLevelVM = _exports.UpdatingVM = _exports.UNDEFINED_REFERENCE = _exports.PrimitiveReference = _exports.NULL_REFERENCE = _exports.ConditionalReference = _exports.ScopeImpl = _exports.EnvironmentImpl = _exports.DefaultDynamicScope = _exports.DOMTreeConstruction = _exports.IDOMChanges = _exports.DOMChanges = _exports.MINIMAL_CAPABILITIES = _exports.DEFAULT_CAPABILITIES = _exports.CurriedComponentDefinition = _exports.CursorImpl = _exports.ConcreteBounds = void 0;\n  // the VM in other classes, but are not intended to be a part of\n  // Glimmer's API.\n  var INNER_VM = (0, _util.symbol)('INNER_VM');\n  var DESTRUCTOR_STACK = (0, _util.symbol)('DESTRUCTOR_STACK');\n  var STACKS = (0, _util.symbol)('STACKS');\n  var REGISTERS = (0, _util.symbol)('REGISTERS');\n  var HEAP = (0, _util.symbol)('HEAP');\n  var CONSTANTS = (0, _util.symbol)('CONSTANTS');\n  var ARGS = (0, _util.symbol)('ARGS');\n  var PC = (0, _util.symbol)('PC');\n\n  class CursorImpl {\n    constructor(element, nextSibling) {\n      this.element = element;\n      this.nextSibling = nextSibling;\n    }\n\n  }\n\n  _exports.CursorImpl = CursorImpl;\n\n  class ConcreteBounds {\n    constructor(parentNode, first, last) {\n      this.parentNode = parentNode;\n      this.first = first;\n      this.last = last;\n    }\n\n    parentElement() {\n      return this.parentNode;\n    }\n\n    firstNode() {\n      return this.first;\n    }\n\n    lastNode() {\n      return this.last;\n    }\n\n  }\n\n  _exports.ConcreteBounds = ConcreteBounds;\n\n  class SingleNodeBounds {\n    constructor(parentNode, node) {\n      this.parentNode = parentNode;\n      this.node = node;\n    }\n\n    parentElement() {\n      return this.parentNode;\n    }\n\n    firstNode() {\n      return this.node;\n    }\n\n    lastNode() {\n      return this.node;\n    }\n\n  }\n\n  function move(bounds, reference) {\n    var parent = bounds.parentElement();\n    var first = bounds.firstNode();\n    var last = bounds.lastNode();\n    var current = first;\n\n    while (true) {\n      var next = current.nextSibling;\n      parent.insertBefore(current, reference);\n\n      if (current === last) {\n        return next;\n      }\n\n      current = next;\n    }\n  }\n\n  function clear(bounds) {\n    var parent = bounds.parentElement();\n    var first = bounds.firstNode();\n    var last = bounds.lastNode();\n    var current = first;\n\n    while (true) {\n      var next = current.nextSibling;\n      parent.removeChild(current);\n\n      if (current === last) {\n        return next;\n      }\n\n      current = next;\n    }\n  }\n\n  function legacySyncReset(parent, env) {\n    var linked = (0, _util.peekAssociated)(parent);\n\n    if (linked !== null) {\n      env.willDestroy((0, _util.snapshot)(linked));\n    }\n  }\n\n  function asyncReset(parent, env) {\n    var linked = (0, _util.takeAssociated)(parent);\n\n    if (linked !== null) {\n      env.didDestroy((0, _util.snapshot)(linked));\n    }\n  }\n\n  function legacySyncDestroy(parent, env) {\n    env.willDestroy((0, _util.destructor)(parent));\n  }\n\n  function asyncDestroy(parent, env) {\n    env.didDestroy((0, _util.destructor)(parent));\n  }\n\n  function detach(parent, env) {\n    legacySyncDestroy(parent, env);\n    clear(parent);\n    asyncDestroy(parent, env);\n  }\n\n  function detachChildren(parent, env) {\n    legacySyncReset(parent, env);\n    asyncReset(parent, env);\n    return clear(parent);\n  }\n\n  var _a;\n\n  class First {\n    constructor(node) {\n      this.node = node;\n    }\n\n    firstNode() {\n      return this.node;\n    }\n\n  }\n\n  class Last {\n    constructor(node) {\n      this.node = node;\n    }\n\n    lastNode() {\n      return this.node;\n    }\n\n  }\n\n  var CURSOR_STACK = (0, _util.symbol)('CURSOR_STACK');\n\n  class NewElementBuilder {\n    constructor(env, parentNode, nextSibling) {\n      this.constructing = null;\n      this.operations = null;\n      this[_a] = new _util.Stack();\n      this.modifierStack = new _util.Stack();\n      this.blockStack = new _util.Stack();\n      this.pushElement(parentNode, nextSibling);\n      this.env = env;\n      this.dom = env.getAppendOperations();\n      this.updateOperations = env.getDOM();\n    }\n\n    static forInitialRender(env, cursor) {\n      return new this(env, cursor.element, cursor.nextSibling).initialize();\n    }\n\n    static resume(env, block) {\n      var parentNode = block.parentElement();\n      var nextSibling = block.reset(env);\n      var stack = new this(env, parentNode, nextSibling).initialize();\n      stack.pushLiveBlock(block);\n      return stack;\n    }\n\n    initialize() {\n      this.pushSimpleBlock();\n      return this;\n    }\n\n    debugBlocks() {\n      return this.blockStack.toArray();\n    }\n\n    get element() {\n      return this[CURSOR_STACK].current.element;\n    }\n\n    get nextSibling() {\n      return this[CURSOR_STACK].current.nextSibling;\n    }\n\n    get hasBlocks() {\n      return this.blockStack.size > 0;\n    }\n\n    block() {\n      return this.blockStack.current;\n    }\n\n    popElement() {\n      this[CURSOR_STACK].pop();\n      this[CURSOR_STACK].current;\n    }\n\n    pushSimpleBlock() {\n      return this.pushLiveBlock(new SimpleLiveBlock(this.element));\n    }\n\n    pushUpdatableBlock() {\n      return this.pushLiveBlock(new UpdatableBlockImpl(this.element));\n    }\n\n    pushBlockList(list) {\n      return this.pushLiveBlock(new LiveBlockList(this.element, list));\n    }\n\n    pushLiveBlock(block, isRemote = false) {\n      var current = this.blockStack.current;\n\n      if (current !== null) {\n        if (!isRemote) {\n          current.didAppendBounds(block);\n        }\n      }\n\n      this.__openBlock();\n\n      this.blockStack.push(block);\n      return block;\n    }\n\n    popBlock() {\n      this.block().finalize(this);\n\n      this.__closeBlock();\n\n      return this.blockStack.pop();\n    }\n\n    __openBlock() {}\n\n    __closeBlock() {} // todo return seems unused\n\n\n    openElement(tag) {\n      var element = this.__openElement(tag);\n\n      this.constructing = element;\n      return element;\n    }\n\n    __openElement(tag) {\n      return this.dom.createElement(tag, this.element);\n    }\n\n    flushElement(modifiers) {\n      var parent = this.element;\n      var element = this.constructing;\n\n      this.__flushElement(parent, element);\n\n      this.constructing = null;\n      this.operations = null;\n      this.pushModifiers(modifiers);\n      this.pushElement(element, null);\n      this.didOpenElement(element);\n    }\n\n    __flushElement(parent, constructing) {\n      this.dom.insertBefore(parent, constructing, this.nextSibling);\n    }\n\n    closeElement() {\n      this.willCloseElement();\n      this.popElement();\n      return this.popModifiers();\n    }\n\n    pushRemoteElement(element, guid, insertBefore) {\n      return this.__pushRemoteElement(element, guid, insertBefore);\n    }\n\n    __pushRemoteElement(element, _guid, insertBefore) {\n      this.pushElement(element, insertBefore);\n\n      if (insertBefore === undefined) {\n        while (element.lastChild) {\n          element.removeChild(element.lastChild);\n        }\n      }\n\n      var block = new RemoteLiveBlock(element);\n      return this.pushLiveBlock(block, true);\n    }\n\n    popRemoteElement() {\n      this.popBlock();\n      this.popElement();\n    }\n\n    pushElement(element, nextSibling = null) {\n      this[CURSOR_STACK].push(new CursorImpl(element, nextSibling));\n    }\n\n    pushModifiers(modifiers) {\n      this.modifierStack.push(modifiers);\n    }\n\n    popModifiers() {\n      return this.modifierStack.pop();\n    }\n\n    didAppendBounds(bounds) {\n      this.block().didAppendBounds(bounds);\n      return bounds;\n    }\n\n    didAppendNode(node) {\n      this.block().didAppendNode(node);\n      return node;\n    }\n\n    didOpenElement(element) {\n      this.block().openElement(element);\n      return element;\n    }\n\n    willCloseElement() {\n      this.block().closeElement();\n    }\n\n    appendText(string) {\n      return this.didAppendNode(this.__appendText(string));\n    }\n\n    __appendText(text) {\n      var {\n        dom,\n        element,\n        nextSibling\n      } = this;\n      var node = dom.createTextNode(text);\n      dom.insertBefore(element, node, nextSibling);\n      return node;\n    }\n\n    __appendNode(node) {\n      this.dom.insertBefore(this.element, node, this.nextSibling);\n      return node;\n    }\n\n    __appendFragment(fragment) {\n      var first = fragment.firstChild;\n\n      if (first) {\n        var ret = new ConcreteBounds(this.element, first, fragment.lastChild);\n        this.dom.insertBefore(this.element, fragment, this.nextSibling);\n        return ret;\n      } else {\n        return new SingleNodeBounds(this.element, this.__appendComment(''));\n      }\n    }\n\n    __appendHTML(html) {\n      return this.dom.insertHTMLBefore(this.element, this.nextSibling, html);\n    }\n\n    appendDynamicHTML(value) {\n      var bounds = this.trustedContent(value);\n      this.didAppendBounds(bounds);\n    }\n\n    appendDynamicText(value) {\n      var node = this.untrustedContent(value);\n      this.didAppendNode(node);\n      return node;\n    }\n\n    appendDynamicFragment(value) {\n      var bounds = this.__appendFragment(value);\n\n      this.didAppendBounds(bounds);\n    }\n\n    appendDynamicNode(value) {\n      var node = this.__appendNode(value);\n\n      var bounds = new SingleNodeBounds(this.element, node);\n      this.didAppendBounds(bounds);\n    }\n\n    trustedContent(value) {\n      return this.__appendHTML(value);\n    }\n\n    untrustedContent(value) {\n      return this.__appendText(value);\n    }\n\n    appendComment(string) {\n      return this.didAppendNode(this.__appendComment(string));\n    }\n\n    __appendComment(string) {\n      var {\n        dom,\n        element,\n        nextSibling\n      } = this;\n      var node = dom.createComment(string);\n      dom.insertBefore(element, node, nextSibling);\n      return node;\n    }\n\n    __setAttribute(name, value, namespace) {\n      this.dom.setAttribute(this.constructing, name, value, namespace);\n    }\n\n    __setProperty(name, value) {\n      this.constructing[name] = value;\n    }\n\n    setStaticAttribute(name, value, namespace) {\n      this.__setAttribute(name, value, namespace);\n    }\n\n    setDynamicAttribute(name, value, trusting, namespace) {\n      var element = this.constructing;\n      var attribute = this.env.attributeFor(element, name, trusting, namespace);\n      attribute.set(this, value, this.env);\n      return attribute;\n    }\n\n  }\n\n  _exports.NewElementBuilder = NewElementBuilder;\n  _a = CURSOR_STACK;\n\n  class SimpleLiveBlock {\n    constructor(parent) {\n      this.parent = parent;\n      this.first = null;\n      this.last = null;\n      this.destroyables = null;\n      this.nesting = 0;\n    }\n\n    parentElement() {\n      return this.parent;\n    }\n\n    firstNode() {\n      var first = this.first;\n      return first.firstNode();\n    }\n\n    lastNode() {\n      var last = this.last;\n      return last.lastNode();\n    }\n\n    openElement(element) {\n      this.didAppendNode(element);\n      this.nesting++;\n    }\n\n    closeElement() {\n      this.nesting--;\n    }\n\n    didAppendNode(node) {\n      if (this.nesting !== 0) return;\n\n      if (!this.first) {\n        this.first = new First(node);\n      }\n\n      this.last = new Last(node);\n    }\n\n    didAppendBounds(bounds) {\n      if (this.nesting !== 0) return;\n\n      if (!this.first) {\n        this.first = bounds;\n      }\n\n      this.last = bounds;\n    }\n\n    finalize(stack) {\n      if (this.first === null) {\n        stack.appendComment('');\n      }\n    }\n\n  }\n\n  class RemoteLiveBlock extends SimpleLiveBlock {\n    [_util.DESTROY]() {\n      // In general, you only need to clear the root of a hierarchy, and should never\n      // need to clear any child nodes. This is an important constraint that gives us\n      // a strong guarantee that clearing a subtree is a single DOM operation.\n      //\n      // Because remote blocks are not normally physically nested inside of the tree\n      // that they are logically nested inside, we manually clear remote blocks when\n      // a logical parent is cleared.\n      //\n      // HOWEVER, it is currently possible for a remote block to be physically nested\n      // inside of the block it is logically contained inside of. This happens when\n      // the remote block is appended to the end of the application's entire element.\n      //\n      // The problem with that scenario is that Glimmer believes that it owns more of\n      // the DOM than it actually does. The code is attempting to write past the end\n      // of the Glimmer-managed root, but Glimmer isn't aware of that.\n      //\n      // The correct solution to that problem is for Glimmer to be aware of the end\n      // of the bounds that it owns, and once we make that change, this check could\n      // be removed.\n      //\n      // For now, a more targeted fix is to check whether the node was already removed\n      // and avoid clearing the node if it was. In most cases this shouldn't happen,\n      // so this might hide bugs where the code clears nested nodes unnecessarily,\n      // so we should eventually try to do the correct fix.\n      if (this.parentElement() === this.firstNode().parentNode) {\n        clear(this);\n      }\n    }\n\n  }\n\n  _exports.RemoteLiveBlock = RemoteLiveBlock;\n\n  class UpdatableBlockImpl extends SimpleLiveBlock {\n    reset(env) {\n      var nextSibling = detachChildren(this, env); // let nextSibling = clear(this);\n\n      this.first = null;\n      this.last = null;\n      this.destroyables = null;\n      this.nesting = 0;\n      return nextSibling;\n    }\n\n  } // FIXME: All the noops in here indicate a modelling problem\n\n\n  _exports.UpdatableBlockImpl = UpdatableBlockImpl;\n\n  class LiveBlockList {\n    constructor(parent, boundList) {\n      this.parent = parent;\n      this.boundList = boundList;\n      this.parent = parent;\n      this.boundList = boundList;\n    }\n\n    parentElement() {\n      return this.parent;\n    }\n\n    firstNode() {\n      var head = this.boundList.head();\n      return head.firstNode();\n    }\n\n    lastNode() {\n      var tail = this.boundList.tail();\n      return tail.lastNode();\n    }\n\n    openElement(_element) {}\n\n    closeElement() {}\n\n    didAppendNode(_node) {}\n\n    didAppendBounds(_bounds) {}\n\n    finalize(_stack) {}\n\n  }\n\n  function clientBuilder(env, cursor) {\n    return NewElementBuilder.forInitialRender(env, cursor);\n  } // http://www.w3.org/TR/html/syntax.html#html-integration-point\n\n\n  var SVG_INTEGRATION_POINTS = {\n    foreignObject: 1,\n    desc: 1,\n    title: 1\n  }; // http://www.w3.org/TR/html/syntax.html#adjust-svg-attributes\n  // TODO: Adjust SVG attributes\n  // http://www.w3.org/TR/html/syntax.html#parsing-main-inforeign\n  // TODO: Adjust SVG elements\n  // http://www.w3.org/TR/html/syntax.html#parsing-main-inforeign\n\n  var BLACKLIST_TABLE = Object.create(null);\n\n  class DOMOperations {\n    constructor(document) {\n      this.document = document;\n      this.setupUselessElement();\n    } // split into seperate method so that NodeDOMTreeConstruction\n    // can override it.\n\n\n    setupUselessElement() {\n      this.uselessElement = this.document.createElement('div');\n    }\n\n    createElement(tag, context) {\n      var isElementInSVGNamespace, isHTMLIntegrationPoint;\n\n      if (context) {\n        isElementInSVGNamespace = context.namespaceURI === \"http://www.w3.org/2000/svg\"\n        /* SVG */\n        || tag === 'svg';\n        isHTMLIntegrationPoint = !!SVG_INTEGRATION_POINTS[context.tagName];\n      } else {\n        isElementInSVGNamespace = tag === 'svg';\n        isHTMLIntegrationPoint = false;\n      }\n\n      if (isElementInSVGNamespace && !isHTMLIntegrationPoint) {\n        // FIXME: This does not properly handle <font> with color, face, or\n        // size attributes, which is also disallowed by the spec. We should fix\n        // this.\n        if (BLACKLIST_TABLE[tag]) {\n          throw new Error(`Cannot create a ${tag} inside an SVG context`);\n        }\n\n        return this.document.createElementNS(\"http://www.w3.org/2000/svg\"\n        /* SVG */\n        , tag);\n      } else {\n        return this.document.createElement(tag);\n      }\n    }\n\n    insertBefore(parent, node, reference) {\n      parent.insertBefore(node, reference);\n    }\n\n    insertHTMLBefore(parent, nextSibling, html) {\n      if (html === '') {\n        var comment = this.createComment('');\n        parent.insertBefore(comment, nextSibling);\n        return new ConcreteBounds(parent, comment, comment);\n      }\n\n      var prev = nextSibling ? nextSibling.previousSibling : parent.lastChild;\n      var last;\n\n      if (nextSibling === null) {\n        parent.insertAdjacentHTML(\"beforeend\"\n        /* beforeend */\n        , html);\n        last = parent.lastChild;\n      } else if (nextSibling instanceof HTMLElement) {\n        nextSibling.insertAdjacentHTML('beforebegin', html);\n        last = nextSibling.previousSibling;\n      } else {\n        // Non-element nodes do not support insertAdjacentHTML, so add an\n        // element and call it on that element. Then remove the element.\n        //\n        // This also protects Edge, IE and Firefox w/o the inspector open\n        // from merging adjacent text nodes. See ./compat/text-node-merging-fix.ts\n        var {\n          uselessElement\n        } = this;\n        parent.insertBefore(uselessElement, nextSibling);\n        uselessElement.insertAdjacentHTML(\"beforebegin\"\n        /* beforebegin */\n        , html);\n        last = uselessElement.previousSibling;\n        parent.removeChild(uselessElement);\n      }\n\n      var first = prev ? prev.nextSibling : parent.firstChild;\n      return new ConcreteBounds(parent, first, last);\n    }\n\n    createTextNode(text) {\n      return this.document.createTextNode(text);\n    }\n\n    createComment(data) {\n      return this.document.createComment(data);\n    }\n\n  }\n\n  function moveNodesBefore(source, target, nextSibling) {\n    var first = source.firstChild;\n    var last = first;\n    var current = first;\n\n    while (current) {\n      var next = current.nextSibling;\n      target.insertBefore(current, nextSibling);\n      last = current;\n      current = next;\n    }\n\n    return new ConcreteBounds(target, first, last);\n  }\n\n  var SVG_NAMESPACE = \"http://www.w3.org/2000/svg\"\n  /* SVG */\n  ; // Patch:    insertAdjacentHTML on SVG Fix\n  // Browsers: Safari, IE, Edge, Firefox ~33-34\n  // Reason:   insertAdjacentHTML does not exist on SVG elements in Safari. It is\n  //           present but throws an exception on IE and Edge. Old versions of\n  //           Firefox create nodes in the incorrect namespace.\n  // Fix:      Since IE and Edge silently fail to create SVG nodes using\n  //           innerHTML, and because Firefox may create nodes in the incorrect\n  //           namespace using innerHTML on SVG elements, an HTML-string wrapping\n  //           approach is used. A pre/post SVG tag is added to the string, then\n  //           that whole string is added to a div. The created nodes are plucked\n  //           out and applied to the target location on DOM.\n\n  function applySVGInnerHTMLFix(document, DOMClass, svgNamespace) {\n    if (!document) return DOMClass;\n\n    if (!shouldApplyFix(document, svgNamespace)) {\n      return DOMClass;\n    }\n\n    var div = document.createElement('div');\n    return class DOMChangesWithSVGInnerHTMLFix extends DOMClass {\n      insertHTMLBefore(parent, nextSibling, html) {\n        if (html === '') {\n          return super.insertHTMLBefore(parent, nextSibling, html);\n        }\n\n        if (parent.namespaceURI !== svgNamespace) {\n          return super.insertHTMLBefore(parent, nextSibling, html);\n        }\n\n        return fixSVG(parent, div, html, nextSibling);\n      }\n\n    };\n  }\n\n  function fixSVG(parent, div, html, reference) {\n    var source; // This is important, because decendants of the <foreignObject> integration\n    // point are parsed in the HTML namespace\n\n    if (parent.tagName.toUpperCase() === 'FOREIGNOBJECT') {\n      // IE, Edge: also do not correctly support using `innerHTML` on SVG\n      // namespaced elements. So here a wrapper is used.\n      var wrappedHtml = '<svg><foreignObject>' + html + '</foreignObject></svg>';\n      (0, _util.clearElement)(div);\n      div.insertAdjacentHTML(\"afterbegin\"\n      /* afterbegin */\n      , wrappedHtml);\n      source = div.firstChild.firstChild;\n    } else {\n      // IE, Edge: also do not correctly support using `innerHTML` on SVG\n      // namespaced elements. So here a wrapper is used.\n      var _wrappedHtml = '<svg>' + html + '</svg>';\n\n      (0, _util.clearElement)(div);\n      div.insertAdjacentHTML(\"afterbegin\"\n      /* afterbegin */\n      , _wrappedHtml);\n      source = div.firstChild;\n    }\n\n    return moveNodesBefore(source, parent, reference);\n  }\n\n  function shouldApplyFix(document, svgNamespace) {\n    var svg = document.createElementNS(svgNamespace, 'svg');\n\n    try {\n      svg.insertAdjacentHTML(\"beforeend\"\n      /* beforeend */\n      , '<circle></circle>');\n    } catch (e) {// IE, Edge: Will throw, insertAdjacentHTML is unsupported on SVG\n      // Safari: Will throw, insertAdjacentHTML is not present on SVG\n    } finally {\n      // FF: Old versions will create a node in the wrong namespace\n      if (svg.childNodes.length === 1 && svg.firstChild.namespaceURI === SVG_NAMESPACE) {\n        // The test worked as expected, no fix required\n        return false;\n      }\n\n      return true;\n    }\n  } // Patch:    Adjacent text node merging fix\n  // Browsers: IE, Edge, Firefox w/o inspector open\n  // Reason:   These browsers will merge adjacent text nodes. For exmaple given\n  //           <div>Hello</div> with div.insertAdjacentHTML(' world') browsers\n  //           with proper behavior will populate div.childNodes with two items.\n  //           These browsers will populate it with one merged node instead.\n  // Fix:      Add these nodes to a wrapper element, then iterate the childNodes\n  //           of that wrapper and move the nodes to their target location. Note\n  //           that potential SVG bugs will have been handled before this fix.\n  //           Note that this fix must only apply to the previous text node, as\n  //           the base implementation of `insertHTMLBefore` already handles\n  //           following text nodes correctly.\n\n\n  function applyTextNodeMergingFix(document, DOMClass) {\n    if (!document) return DOMClass;\n\n    if (!shouldApplyFix$1(document)) {\n      return DOMClass;\n    }\n\n    return class DOMChangesWithTextNodeMergingFix extends DOMClass {\n      constructor(document) {\n        super(document);\n        this.uselessComment = document.createComment('');\n      }\n\n      insertHTMLBefore(parent, nextSibling, html) {\n        if (html === '') {\n          return super.insertHTMLBefore(parent, nextSibling, html);\n        }\n\n        var didSetUselessComment = false;\n        var nextPrevious = nextSibling ? nextSibling.previousSibling : parent.lastChild;\n\n        if (nextPrevious && nextPrevious instanceof Text) {\n          didSetUselessComment = true;\n          parent.insertBefore(this.uselessComment, nextSibling);\n        }\n\n        var bounds = super.insertHTMLBefore(parent, nextSibling, html);\n\n        if (didSetUselessComment) {\n          parent.removeChild(this.uselessComment);\n        }\n\n        return bounds;\n      }\n\n    };\n  }\n\n  function shouldApplyFix$1(document) {\n    var mergingTextDiv = document.createElement('div');\n    mergingTextDiv.appendChild(document.createTextNode('first'));\n    mergingTextDiv.insertAdjacentHTML(\"beforeend\"\n    /* beforeend */\n    , 'second');\n\n    if (mergingTextDiv.childNodes.length === 2) {\n      // It worked as expected, no fix required\n      return false;\n    }\n\n    return true;\n  }\n\n  ['b', 'big', 'blockquote', 'body', 'br', 'center', 'code', 'dd', 'div', 'dl', 'dt', 'em', 'embed', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'head', 'hr', 'i', 'img', 'li', 'listing', 'main', 'meta', 'nobr', 'ol', 'p', 'pre', 'ruby', 's', 'small', 'span', 'strong', 'strike', 'sub', 'sup', 'table', 'tt', 'u', 'ul', 'var'].forEach(tag => BLACKLIST_TABLE[tag] = 1);\n  var WHITESPACE = /[\\t-\\r \\xA0\\u1680\\u180E\\u2000-\\u200A\\u2028\\u2029\\u202F\\u205F\\u3000\\uFEFF]/;\n  var doc = typeof document === 'undefined' ? null : document;\n\n  function isWhitespace(string) {\n    return WHITESPACE.test(string);\n  }\n\n  var DOM;\n\n  (function (DOM) {\n    class TreeConstruction extends DOMOperations {\n      createElementNS(namespace, tag) {\n        return this.document.createElementNS(namespace, tag);\n      }\n\n      setAttribute(element, name, value, namespace = null) {\n        if (namespace) {\n          element.setAttributeNS(namespace, name, value);\n        } else {\n          element.setAttribute(name, value);\n        }\n      }\n\n    }\n\n    DOM.TreeConstruction = TreeConstruction;\n    var appliedTreeContruction = TreeConstruction;\n    appliedTreeContruction = applyTextNodeMergingFix(doc, appliedTreeContruction);\n    appliedTreeContruction = applySVGInnerHTMLFix(doc, appliedTreeContruction, \"http://www.w3.org/2000/svg\"\n    /* SVG */\n    );\n    DOM.DOMTreeConstruction = appliedTreeContruction;\n  })(DOM || (DOM = {}));\n\n  class DOMChangesImpl extends DOMOperations {\n    constructor(document) {\n      super(document);\n      this.document = document;\n      this.namespace = null;\n    }\n\n    setAttribute(element, name, value) {\n      element.setAttribute(name, value);\n    }\n\n    removeAttribute(element, name) {\n      element.removeAttribute(name);\n    }\n\n    insertAfter(element, node, reference) {\n      this.insertBefore(element, node, reference.nextSibling);\n    }\n\n  }\n\n  _exports.IDOMChanges = DOMChangesImpl;\n  var helper = DOMChangesImpl;\n  helper = applyTextNodeMergingFix(doc, helper);\n  helper = applySVGInnerHTMLFix(doc, helper, \"http://www.w3.org/2000/svg\"\n  /* SVG */\n  );\n  var helper$1 = helper;\n  _exports.DOMChanges = helper$1;\n  var DOMTreeConstruction = DOM.DOMTreeConstruction;\n  _exports.DOMTreeConstruction = DOMTreeConstruction;\n\n  class PrimitiveReference extends _reference.ConstReference {\n    static create(value) {\n      if (value === undefined) {\n        return UNDEFINED_REFERENCE;\n      } else if (value === null) {\n        return NULL_REFERENCE;\n      } else if (value === true) {\n        return TRUE_REFERENCE;\n      } else if (value === false) {\n        return FALSE_REFERENCE;\n      } else if (typeof value === 'number') {\n        return new ValueReference(value);\n      } else {\n        return new StringReference(value);\n      }\n    }\n\n    constructor(value) {\n      super(value);\n    }\n\n    get(_key) {\n      return UNDEFINED_REFERENCE;\n    }\n\n  }\n\n  _exports.PrimitiveReference = PrimitiveReference;\n\n  class StringReference extends PrimitiveReference {\n    constructor() {\n      super(...arguments);\n      this.lengthReference = null;\n    }\n\n    get(key) {\n      if (key === 'length') {\n        var {\n          lengthReference\n        } = this;\n\n        if (lengthReference === null) {\n          lengthReference = this.lengthReference = new ValueReference(this.inner.length);\n        }\n\n        return lengthReference;\n      } else {\n        return super.get(key);\n      }\n    }\n\n  }\n\n  class ValueReference extends PrimitiveReference {\n    constructor(value) {\n      super(value);\n    }\n\n  }\n\n  var UNDEFINED_REFERENCE = new ValueReference(undefined);\n  _exports.UNDEFINED_REFERENCE = UNDEFINED_REFERENCE;\n  var NULL_REFERENCE = new ValueReference(null);\n  _exports.NULL_REFERENCE = NULL_REFERENCE;\n  var TRUE_REFERENCE = new ValueReference(true);\n  var FALSE_REFERENCE = new ValueReference(false);\n\n  class ConditionalReference {\n    constructor(inner, toBool = defaultToBool) {\n      this.inner = inner;\n      this.toBool = toBool;\n      this.tag = inner.tag;\n    }\n\n    value() {\n      return this.toBool(this.inner.value());\n    }\n\n  }\n\n  _exports.ConditionalReference = ConditionalReference;\n\n  function defaultToBool(value) {\n    return !!value;\n  }\n\n  function normalizeStringValue(value) {\n    if (isEmpty(value)) {\n      return '';\n    }\n\n    return String(value);\n  }\n\n  function shouldCoerce(value) {\n    return isString(value) || isEmpty(value) || typeof value === 'boolean' || typeof value === 'number';\n  }\n\n  function isEmpty(value) {\n    return value === null || value === undefined || typeof value.toString !== 'function';\n  }\n\n  function isSafeString(value) {\n    return typeof value === 'object' && value !== null && typeof value.toHTML === 'function';\n  }\n\n  function isNode(value) {\n    return typeof value === 'object' && value !== null && typeof value.nodeType === 'number';\n  }\n\n  function isFragment(value) {\n    return isNode(value) && value.nodeType === 11;\n  }\n\n  function isString(value) {\n    return typeof value === 'string';\n  }\n  /*\n   * @method normalizeProperty\n   * @param element {HTMLElement}\n   * @param slotName {String}\n   * @returns {Object} { name, type }\n   */\n\n\n  function normalizeProperty(element, slotName) {\n    var type, normalized;\n\n    if (slotName in element) {\n      normalized = slotName;\n      type = 'prop';\n    } else {\n      var lower = slotName.toLowerCase();\n\n      if (lower in element) {\n        type = 'prop';\n        normalized = lower;\n      } else {\n        type = 'attr';\n        normalized = slotName;\n      }\n    }\n\n    if (type === 'prop' && (normalized.toLowerCase() === 'style' || preferAttr(element.tagName, normalized))) {\n      type = 'attr';\n    }\n\n    return {\n      normalized,\n      type\n    };\n  } // * browser bug\n  // * strange spec outlier\n\n\n  var ATTR_OVERRIDES = {\n    INPUT: {\n      form: true,\n      // Chrome 46.0.2464.0: 'autocorrect' in document.createElement('input') === false\n      // Safari 8.0.7: 'autocorrect' in document.createElement('input') === false\n      // Mobile Safari (iOS 8.4 simulator): 'autocorrect' in document.createElement('input') === true\n      autocorrect: true,\n      // Chrome 54.0.2840.98: 'list' in document.createElement('input') === true\n      // Safari 9.1.3: 'list' in document.createElement('input') === false\n      list: true\n    },\n    // element.form is actually a legitimate readOnly property, that is to be\n    // mutated, but must be mutated by setAttribute...\n    SELECT: {\n      form: true\n    },\n    OPTION: {\n      form: true\n    },\n    TEXTAREA: {\n      form: true\n    },\n    LABEL: {\n      form: true\n    },\n    FIELDSET: {\n      form: true\n    },\n    LEGEND: {\n      form: true\n    },\n    OBJECT: {\n      form: true\n    },\n    BUTTON: {\n      form: true\n    }\n  };\n\n  function preferAttr(tagName, propName) {\n    var tag = ATTR_OVERRIDES[tagName.toUpperCase()];\n    return tag && tag[propName.toLowerCase()] || false;\n  }\n\n  var badProtocols = ['javascript:', 'vbscript:'];\n  var badTags = ['A', 'BODY', 'LINK', 'IMG', 'IFRAME', 'BASE', 'FORM'];\n  var badTagsForDataURI = ['EMBED'];\n  var badAttributes = ['href', 'src', 'background', 'action'];\n  var badAttributesForDataURI = ['src'];\n\n  function has(array, item) {\n    return array.indexOf(item) !== -1;\n  }\n\n  function checkURI(tagName, attribute) {\n    return (tagName === null || has(badTags, tagName)) && has(badAttributes, attribute);\n  }\n\n  function checkDataURI(tagName, attribute) {\n    if (tagName === null) return false;\n    return has(badTagsForDataURI, tagName) && has(badAttributesForDataURI, attribute);\n  }\n\n  function requiresSanitization(tagName, attribute) {\n    return checkURI(tagName, attribute) || checkDataURI(tagName, attribute);\n  }\n\n  function sanitizeAttributeValue(env, element, attribute, value) {\n    var tagName = null;\n\n    if (value === null || value === undefined) {\n      return value;\n    }\n\n    if (isSafeString(value)) {\n      return value.toHTML();\n    }\n\n    if (!element) {\n      tagName = null;\n    } else {\n      tagName = element.tagName.toUpperCase();\n    }\n\n    var str = normalizeStringValue(value);\n\n    if (checkURI(tagName, attribute)) {\n      var protocol = env.protocolForURL(str);\n\n      if (has(badProtocols, protocol)) {\n        return `unsafe:${str}`;\n      }\n    }\n\n    if (checkDataURI(tagName, attribute)) {\n      return `unsafe:${str}`;\n    }\n\n    return str;\n  }\n\n  function dynamicAttribute(element, attr, namespace) {\n    var {\n      tagName,\n      namespaceURI\n    } = element;\n    var attribute = {\n      element,\n      name: attr,\n      namespace\n    };\n\n    if (namespaceURI === \"http://www.w3.org/2000/svg\"\n    /* SVG */\n    ) {\n        return buildDynamicAttribute(tagName, attr, attribute);\n      }\n\n    var {\n      type,\n      normalized\n    } = normalizeProperty(element, attr);\n\n    if (type === 'attr') {\n      return buildDynamicAttribute(tagName, normalized, attribute);\n    } else {\n      return buildDynamicProperty(tagName, normalized, attribute);\n    }\n  }\n\n  function buildDynamicAttribute(tagName, name, attribute) {\n    if (requiresSanitization(tagName, name)) {\n      return new SafeDynamicAttribute(attribute);\n    } else {\n      return new SimpleDynamicAttribute(attribute);\n    }\n  }\n\n  function buildDynamicProperty(tagName, name, attribute) {\n    if (requiresSanitization(tagName, name)) {\n      return new SafeDynamicProperty(name, attribute);\n    }\n\n    if (isUserInputValue(tagName, name)) {\n      return new InputValueDynamicAttribute(name, attribute);\n    }\n\n    if (isOptionSelected(tagName, name)) {\n      return new OptionSelectedDynamicAttribute(name, attribute);\n    }\n\n    return new DefaultDynamicProperty(name, attribute);\n  }\n\n  class DynamicAttribute {\n    constructor(attribute) {\n      this.attribute = attribute;\n    }\n\n  }\n\n  _exports.DynamicAttribute = DynamicAttribute;\n\n  class SimpleDynamicAttribute extends DynamicAttribute {\n    set(dom, value, _env) {\n      var normalizedValue = normalizeValue(value);\n\n      if (normalizedValue !== null) {\n        var {\n          name: _name2,\n          namespace\n        } = this.attribute;\n\n        dom.__setAttribute(_name2, normalizedValue, namespace);\n      }\n    }\n\n    update(value, _env) {\n      var normalizedValue = normalizeValue(value);\n      var {\n        element,\n        name\n      } = this.attribute;\n\n      if (normalizedValue === null) {\n        element.removeAttribute(name);\n      } else {\n        element.setAttribute(name, normalizedValue);\n      }\n    }\n\n  }\n\n  _exports.SimpleDynamicAttribute = SimpleDynamicAttribute;\n\n  class DefaultDynamicProperty extends DynamicAttribute {\n    constructor(normalizedName, attribute) {\n      super(attribute);\n      this.normalizedName = normalizedName;\n    }\n\n    set(dom, value, _env) {\n      if (value !== null && value !== undefined) {\n        this.value = value;\n\n        dom.__setProperty(this.normalizedName, value);\n      }\n    }\n\n    update(value, _env) {\n      var {\n        element\n      } = this.attribute;\n\n      if (this.value !== value) {\n        element[this.normalizedName] = this.value = value;\n\n        if (value === null || value === undefined) {\n          this.removeAttribute();\n        }\n      }\n    }\n\n    removeAttribute() {\n      // TODO this sucks but to preserve properties first and to meet current\n      // semantics we must do this.\n      var {\n        element,\n        namespace\n      } = this.attribute;\n\n      if (namespace) {\n        element.removeAttributeNS(namespace, this.normalizedName);\n      } else {\n        element.removeAttribute(this.normalizedName);\n      }\n    }\n\n  }\n\n  class SafeDynamicProperty extends DefaultDynamicProperty {\n    set(dom, value, env) {\n      var {\n        element,\n        name\n      } = this.attribute;\n      var sanitized = sanitizeAttributeValue(env, element, name, value);\n      super.set(dom, sanitized, env);\n    }\n\n    update(value, env) {\n      var {\n        element,\n        name\n      } = this.attribute;\n      var sanitized = sanitizeAttributeValue(env, element, name, value);\n      super.update(sanitized, env);\n    }\n\n  }\n\n  class SafeDynamicAttribute extends SimpleDynamicAttribute {\n    set(dom, value, env) {\n      var {\n        element,\n        name\n      } = this.attribute;\n      var sanitized = sanitizeAttributeValue(env, element, name, value);\n      super.set(dom, sanitized, env);\n    }\n\n    update(value, env) {\n      var {\n        element,\n        name\n      } = this.attribute;\n      var sanitized = sanitizeAttributeValue(env, element, name, value);\n      super.update(sanitized, env);\n    }\n\n  }\n\n  class InputValueDynamicAttribute extends DefaultDynamicProperty {\n    set(dom, value) {\n      dom.__setProperty('value', normalizeStringValue(value));\n    }\n\n    update(value) {\n      var input = this.attribute.element;\n      var currentValue = input.value;\n      var normalizedValue = normalizeStringValue(value);\n\n      if (currentValue !== normalizedValue) {\n        input.value = normalizedValue;\n      }\n    }\n\n  }\n\n  class OptionSelectedDynamicAttribute extends DefaultDynamicProperty {\n    set(dom, value) {\n      if (value !== null && value !== undefined && value !== false) {\n        dom.__setProperty('selected', true);\n      }\n    }\n\n    update(value) {\n      var option = this.attribute.element;\n\n      if (value) {\n        option.selected = true;\n      } else {\n        option.selected = false;\n      }\n    }\n\n  }\n\n  function isOptionSelected(tagName, attribute) {\n    return tagName === 'OPTION' && attribute === 'selected';\n  }\n\n  function isUserInputValue(tagName, attribute) {\n    return (tagName === 'INPUT' || tagName === 'TEXTAREA') && attribute === 'value';\n  }\n\n  function normalizeValue(value) {\n    if (value === false || value === undefined || value === null || typeof value.toString === 'undefined') {\n      return null;\n    }\n\n    if (value === true) {\n      return '';\n    } // onclick function etc in SSR\n\n\n    if (typeof value === 'function') {\n      return null;\n    }\n\n    return String(value);\n  }\n\n  var _a$1;\n\n  class ScopeImpl {\n    constructor( // the 0th slot is `self`\n    slots, callerScope, // named arguments and blocks passed to a layout that uses eval\n    evalScope, // locals in scope when the partial was invoked\n    partialMap) {\n      this.slots = slots;\n      this.callerScope = callerScope;\n      this.evalScope = evalScope;\n      this.partialMap = partialMap;\n    }\n\n    static root(self, size = 0) {\n      var refs = new Array(size + 1);\n\n      for (var i = 0; i <= size; i++) {\n        refs[i] = UNDEFINED_REFERENCE;\n      }\n\n      return new ScopeImpl(refs, null, null, null).init({\n        self\n      });\n    }\n\n    static sized(size = 0) {\n      var refs = new Array(size + 1);\n\n      for (var i = 0; i <= size; i++) {\n        refs[i] = UNDEFINED_REFERENCE;\n      }\n\n      return new ScopeImpl(refs, null, null, null);\n    }\n\n    init({\n      self\n    }) {\n      this.slots[0] = self;\n      return this;\n    }\n\n    getSelf() {\n      return this.get(0);\n    }\n\n    getSymbol(symbol$$1) {\n      return this.get(symbol$$1);\n    }\n\n    getBlock(symbol$$1) {\n      var block = this.get(symbol$$1);\n      return block === UNDEFINED_REFERENCE ? null : block;\n    }\n\n    getEvalScope() {\n      return this.evalScope;\n    }\n\n    getPartialMap() {\n      return this.partialMap;\n    }\n\n    bind(symbol$$1, value) {\n      this.set(symbol$$1, value);\n    }\n\n    bindSelf(self) {\n      this.set(0, self);\n    }\n\n    bindSymbol(symbol$$1, value) {\n      this.set(symbol$$1, value);\n    }\n\n    bindBlock(symbol$$1, value) {\n      this.set(symbol$$1, value);\n    }\n\n    bindEvalScope(map) {\n      this.evalScope = map;\n    }\n\n    bindPartialMap(map) {\n      this.partialMap = map;\n    }\n\n    bindCallerScope(scope) {\n      this.callerScope = scope;\n    }\n\n    getCallerScope() {\n      return this.callerScope;\n    }\n\n    child() {\n      return new ScopeImpl(this.slots.slice(), this.callerScope, this.evalScope, this.partialMap);\n    }\n\n    get(index) {\n      if (index >= this.slots.length) {\n        throw new RangeError(`BUG: cannot get $${index} from scope; length=${this.slots.length}`);\n      }\n\n      return this.slots[index];\n    }\n\n    set(index, value) {\n      if (index >= this.slots.length) {\n        throw new RangeError(`BUG: cannot get $${index} from scope; length=${this.slots.length}`);\n      }\n\n      this.slots[index] = value;\n    }\n\n  }\n\n  _exports.ScopeImpl = ScopeImpl;\n  var TRANSACTION = (0, _util.symbol)('TRANSACTION');\n\n  class TransactionImpl {\n    constructor() {\n      this.scheduledInstallManagers = [];\n      this.scheduledInstallModifiers = [];\n      this.scheduledUpdateModifierManagers = [];\n      this.scheduledUpdateModifiers = [];\n      this.createdComponents = [];\n      this.createdManagers = [];\n      this.updatedComponents = [];\n      this.updatedManagers = [];\n      this.destructors = [];\n    }\n\n    didCreate(component, manager) {\n      this.createdComponents.push(component);\n      this.createdManagers.push(manager);\n    }\n\n    didUpdate(component, manager) {\n      this.updatedComponents.push(component);\n      this.updatedManagers.push(manager);\n    }\n\n    scheduleInstallModifier(modifier, manager) {\n      this.scheduledInstallModifiers.push(modifier);\n      this.scheduledInstallManagers.push(manager);\n    }\n\n    scheduleUpdateModifier(modifier, manager) {\n      this.scheduledUpdateModifiers.push(modifier);\n      this.scheduledUpdateModifierManagers.push(manager);\n    }\n\n    willDestroy(d) {\n      d[_util.WILL_DROP]();\n    }\n\n    didDestroy(d) {\n      this.destructors.push(d);\n    }\n\n    commit() {\n      var {\n        createdComponents,\n        createdManagers\n      } = this;\n\n      for (var i = 0; i < createdComponents.length; i++) {\n        var component = createdComponents[i];\n        var manager = createdManagers[i];\n        manager.didCreate(component);\n      }\n\n      var {\n        updatedComponents,\n        updatedManagers\n      } = this;\n\n      for (var _i = 0; _i < updatedComponents.length; _i++) {\n        var _component = updatedComponents[_i];\n        var _manager2 = updatedManagers[_i];\n\n        _manager2.didUpdate(_component);\n      }\n\n      var {\n        destructors\n      } = this;\n\n      for (var _i2 = 0; _i2 < destructors.length; _i2++) {\n        destructors[_i2][_util.DID_DROP]();\n      }\n\n      var {\n        scheduledInstallManagers,\n        scheduledInstallModifiers\n      } = this;\n\n      for (var _i3 = 0; _i3 < scheduledInstallManagers.length; _i3++) {\n        var modifier = scheduledInstallModifiers[_i3];\n        var _manager3 = scheduledInstallManagers[_i3];\n\n        _manager3.install(modifier);\n      }\n\n      var {\n        scheduledUpdateModifierManagers,\n        scheduledUpdateModifiers\n      } = this;\n\n      for (var _i4 = 0; _i4 < scheduledUpdateModifierManagers.length; _i4++) {\n        var _modifier = scheduledUpdateModifiers[_i4];\n        var _manager4 = scheduledUpdateModifierManagers[_i4];\n\n        _manager4.update(_modifier);\n      }\n    }\n\n  }\n\n  function defaultDelegateFn(delegateFn, delegateDefault) {\n    var defaultFn = delegateFn !== undefined ? delegateFn : delegateDefault;\n\n    if (true\n    /* DEBUG */\n    ) {\n      // Bind to `null` in DEBUG since these methods are assumed to be pure\n      // functions, so we can reassign them.\n      return defaultFn.bind(null);\n    }\n\n    return defaultFn;\n  }\n\n  class EnvironmentImpl {\n    constructor(options, delegate) {\n      this.delegate = delegate;\n      this[_a$1] = null; // Delegate methods and values\n\n      this.extra = this.delegate.extra;\n      this.isInteractive = typeof this.delegate.isInteractive === 'boolean' ? this.delegate.isInteractive : true;\n      this.protocolForURL = defaultDelegateFn(this.delegate.protocolForURL, defaultGetProtocolForURL);\n      this.attributeFor = defaultDelegateFn(this.delegate.attributeFor, defaultAttributeFor);\n      this.getPath = defaultDelegateFn(this.delegate.getPath, defaultGetPath);\n      this.setPath = defaultDelegateFn(this.delegate.setPath, defaultSetPath);\n      this.toBool = defaultDelegateFn(this.delegate.toBool, defaultToBool$1);\n      this.toIterator = defaultDelegateFn(this.delegate.toIterator, defaultToIterator);\n\n      if (options.appendOperations) {\n        this.appendOperations = options.appendOperations;\n        this.updateOperations = options.updateOperations;\n      } else if (options.document) {\n        this.appendOperations = new DOMTreeConstruction(options.document);\n        this.updateOperations = new DOMChangesImpl(options.document);\n      } else if (true\n      /* DEBUG */\n      ) {\n        throw new Error('you must pass document or appendOperations to a new runtime');\n      }\n    }\n\n    getTemplatePathDebugContext(ref) {\n      if (this.delegate.getTemplatePathDebugContext !== undefined) {\n        return this.delegate.getTemplatePathDebugContext(ref);\n      }\n\n      return '';\n    }\n\n    setTemplatePathDebugContext(ref, desc, parentRef) {\n      if (this.delegate.setTemplatePathDebugContext !== undefined) {\n        this.delegate.setTemplatePathDebugContext(ref, desc, parentRef);\n      }\n    }\n\n    iterableFor(ref, inputKey) {\n      // TODO: We should add an assertion here to verify that we are passed a\n      // TemplatePathReference, but we can only do that once we remove\n      // or significantly rewrite @glimmer/object-reference\n      var key = inputKey === null ? '@identity' : String(inputKey);\n      return new _reference.IterableImpl(ref, key, this);\n    }\n\n    toConditionalReference(input) {\n      return new ConditionalReference(input, this.delegate.toBool);\n    }\n\n    getAppendOperations() {\n      return this.appendOperations;\n    }\n\n    getDOM() {\n      return this.updateOperations;\n    }\n\n    begin() {\n      if (this.delegate.onTransactionBegin !== undefined) {\n        this.delegate.onTransactionBegin();\n      }\n\n      this[TRANSACTION] = new TransactionImpl();\n    }\n\n    get transaction() {\n      return this[TRANSACTION];\n    }\n\n    didCreate(component, manager) {\n      this.transaction.didCreate(component, manager);\n    }\n\n    didUpdate(component, manager) {\n      this.transaction.didUpdate(component, manager);\n    }\n\n    scheduleInstallModifier(modifier, manager) {\n      if (this.isInteractive) {\n        this.transaction.scheduleInstallModifier(modifier, manager);\n      }\n    }\n\n    scheduleUpdateModifier(modifier, manager) {\n      if (this.isInteractive) {\n        this.transaction.scheduleUpdateModifier(modifier, manager);\n      }\n    }\n\n    willDestroy(d) {\n      this.transaction.willDestroy(d);\n    }\n\n    didDestroy(d) {\n      this.transaction.didDestroy(d);\n    }\n\n    commit() {\n      var transaction = this.transaction;\n      this[TRANSACTION] = null;\n      transaction.commit();\n\n      if (this.delegate.onTransactionCommit !== undefined) {\n        this.delegate.onTransactionCommit();\n      }\n    }\n\n  }\n\n  _exports.EnvironmentImpl = EnvironmentImpl;\n  _a$1 = TRANSACTION;\n\n  function defaultGetProtocolForURL(url) {\n    if (typeof URL === 'object' || typeof URL === 'undefined') {\n      return legacyProtocolForURL(url);\n    } else if (typeof document !== 'undefined') {\n      return new URL(url, document.baseURI).protocol;\n    } else {\n      return new URL(url, 'https://www.example.com').protocol;\n    }\n  }\n\n  function defaultAttributeFor(element, attr, _isTrusting, namespace) {\n    return dynamicAttribute(element, attr, namespace);\n  }\n\n  function defaultGetPath(obj, key) {\n    return obj[key];\n  }\n\n  function defaultSetPath(obj, key, value) {\n    return obj[key] = value;\n  }\n\n  function defaultToBool$1(value) {\n    return Boolean(value);\n  }\n\n  function defaultToIterator(value) {\n    if (value && value[Symbol.iterator]) {\n      return value[Symbol.iterator]();\n    }\n\n    return null;\n  }\n\n  function legacyProtocolForURL(url) {\n    if (typeof window === 'undefined') {\n      var match = /^([a-z][a-z0-9.+-]*:)?(\\/\\/)?([\\S\\s]*)/i.exec(url);\n      return match && match[1] ? match[1].toLowerCase() : '';\n    }\n\n    var anchor = window.document.createElement('a');\n    anchor.href = url;\n    return anchor.protocol;\n  }\n\n  class DefaultRuntimeResolver {\n    constructor(inner) {\n      this.inner = inner;\n    }\n\n    lookupComponent(name, referrer) {\n      if (this.inner.lookupComponent) {\n        var component = this.inner.lookupComponent(name, referrer);\n\n        if (component === undefined) {\n          throw new Error(`Unexpected component ${name} (from ${referrer}) (lookupComponent returned undefined)`);\n        }\n\n        return component;\n      } else {\n        throw new Error('lookupComponent not implemented on RuntimeResolver.');\n      }\n    }\n\n    lookupPartial(name, referrer) {\n      if (this.inner.lookupPartial) {\n        var partial = this.inner.lookupPartial(name, referrer);\n\n        if (partial === undefined) {\n          throw new Error(`Unexpected partial ${name} (from ${referrer}) (lookupPartial returned undefined)`);\n        }\n\n        return partial;\n      } else {\n        throw new Error('lookupPartial not implemented on RuntimeResolver.');\n      }\n    }\n\n    resolve(handle) {\n      if (this.inner.resolve) {\n        var resolved = this.inner.resolve(handle);\n\n        if (resolved === undefined) {\n          throw new Error(`Unexpected handle ${handle} (resolve returned undefined)`);\n        }\n\n        return resolved;\n      } else {\n        throw new Error('resolve not implemented on RuntimeResolver.');\n      }\n    }\n\n    compilable(locator) {\n      if (this.inner.compilable) {\n        var resolved = this.inner.compilable(locator);\n\n        if (resolved === undefined) {\n          throw new Error(`Unable to compile ${name} (compilable returned undefined)`);\n        }\n\n        return resolved;\n      } else {\n        throw new Error('compilable not implemented on RuntimeResolver.');\n      }\n    }\n\n    getInvocation(locator) {\n      if (this.inner.getInvocation) {\n        var invocation = this.inner.getInvocation(locator);\n\n        if (invocation === undefined) {\n          throw new Error(`Unable to get invocation for ${JSON.stringify(locator)} (getInvocation returned undefined)`);\n        }\n\n        return invocation;\n      } else {\n        throw new Error('getInvocation not implemented on RuntimeResolver.');\n      }\n    }\n\n  }\n\n  function AotRuntime(options, program, resolver = {}, delegate = {}) {\n    var env = new EnvironmentImpl(options, delegate);\n    return {\n      env,\n      resolver: new DefaultRuntimeResolver(resolver),\n      program: _program.RuntimeProgramImpl.hydrate(program)\n    };\n  }\n\n  function JitRuntime(options, delegate = {}, context, resolver = {}) {\n    return {\n      env: new EnvironmentImpl(options, delegate),\n      program: new _program.RuntimeProgramImpl(context.program.constants, context.program.heap),\n      resolver: new DefaultRuntimeResolver(resolver)\n    };\n  }\n\n  function inTransaction(env, cb) {\n    if (!env[TRANSACTION]) {\n      env.begin();\n\n      try {\n        cb();\n      } finally {\n        env.commit();\n      }\n    } else {\n      cb();\n    }\n  }\n\n  class AppendOpcodes {\n    constructor() {\n      this.evaluateOpcode = (0, _util.fillNulls)(107\n      /* Size */\n      ).slice();\n    }\n\n    add(name, evaluate, kind = 'syscall') {\n      this.evaluateOpcode[name] = {\n        syscall: kind !== 'machine',\n        evaluate\n      };\n    }\n\n    debugBefore(vm, opcode) {\n      var params = undefined;\n      var opName = undefined;\n      var sp;\n      return {\n        sp: sp,\n        pc: vm.fetchValue(_vm2.$pc),\n        name: opName,\n        params,\n        type: opcode.type,\n        isMachine: opcode.isMachine,\n        size: opcode.size,\n        state: undefined\n      };\n    }\n\n    debugAfter(vm, pre) {}\n\n    evaluate(vm, opcode, type) {\n      var operation = this.evaluateOpcode[type];\n\n      if (operation.syscall) {\n        operation.evaluate(vm, opcode);\n      } else {\n        operation.evaluate(vm[INNER_VM], opcode);\n      }\n    }\n\n  }\n\n  var APPEND_OPCODES = new AppendOpcodes();\n\n  class AbstractOpcode {\n    constructor() {\n      (0, _util.initializeGuid)(this);\n    }\n\n  }\n\n  class UpdatingOpcode extends AbstractOpcode {\n    constructor() {\n      super(...arguments);\n      this.next = null;\n      this.prev = null;\n    }\n\n  }\n  /**\n   * These utility functions are related to @glimmer/validator, but they aren't\n   * meant to be consumed publicly. They exist as an optimization, and pull in\n   * types that are otherwise unrelated to the validation system. Keeping them\n   * here keeps the validation system isolated, and allows it to avoid pulling in\n   * extra type information (which can lead to issues in public types).\n   */\n\n\n  function combineTagged(tagged) {\n    var optimized = [];\n\n    for (var i = 0, l = tagged.length; i < l; i++) {\n      var tag = tagged[i].tag;\n      if (tag === _validator.CONSTANT_TAG) continue;\n      optimized.push(tag);\n    }\n\n    return (0, _validator.createCombinatorTag)(optimized);\n  }\n\n  function combineSlice(slice) {\n    var optimized = [];\n    var node = slice.head();\n\n    while (node !== null) {\n      var tag = node.tag;\n      if (tag !== _validator.CONSTANT_TAG) optimized.push(tag);\n      node = slice.nextNode(node);\n    }\n\n    return (0, _validator.createCombinatorTag)(optimized);\n  }\n\n  class ConcatReference extends _reference.CachedReference {\n    constructor(parts) {\n      super();\n      this.parts = parts;\n      this.tag = combineTagged(parts);\n    }\n\n    compute() {\n      var parts = new Array();\n\n      for (var i = 0; i < this.parts.length; i++) {\n        var value = this.parts[i].value();\n\n        if (value !== null && value !== undefined) {\n          parts[i] = castToString(value);\n        }\n      }\n\n      if (parts.length > 0) {\n        return parts.join('');\n      }\n\n      return null;\n    }\n\n  }\n\n  function castToString(value) {\n    if (typeof value.toString !== 'function') {\n      return '';\n    }\n\n    return String(value);\n  }\n\n  APPEND_OPCODES.add(16\n  /* Helper */\n  , (vm, {\n    op1: handle\n  }) => {\n    var stack = vm.stack;\n    var helper = vm.runtime.resolver.resolve(handle);\n    var args = stack.pop();\n    var value = helper(args, vm);\n    vm.loadValue(_vm2.$v0, value);\n  });\n  APPEND_OPCODES.add(22\n  /* GetVariable */\n  , (vm, {\n    op1: symbol$$1\n  }) => {\n    var expr = vm.referenceForSymbol(symbol$$1);\n    vm.stack.push(expr);\n  });\n  APPEND_OPCODES.add(19\n  /* SetVariable */\n  , (vm, {\n    op1: symbol$$1\n  }) => {\n    var expr = vm.stack.pop();\n    vm.scope().bindSymbol(symbol$$1, expr);\n  });\n  APPEND_OPCODES.add(21\n  /* SetJitBlock */\n  , (vm, {\n    op1: symbol$$1\n  }) => {\n    var handle = vm.stack.pop();\n    var scope = vm.stack.pop();\n    var table = vm.stack.pop();\n    var block = table ? [handle, scope, table] : null;\n    vm.scope().bindBlock(symbol$$1, block);\n  }, 'jit');\n  APPEND_OPCODES.add(20\n  /* SetAotBlock */\n  , (vm, {\n    op1: symbol$$1\n  }) => {\n    var handle = vm.stack.pop();\n    var scope = vm.stack.pop();\n    var table = vm.stack.pop();\n    var block = table ? [handle, scope, table] : null;\n    vm.scope().bindBlock(symbol$$1, block);\n  });\n  APPEND_OPCODES.add(105\n  /* ResolveMaybeLocal */\n  , (vm, {\n    op1: _name\n  }) => {\n    var name = vm[CONSTANTS].getString(_name);\n    var locals = vm.scope().getPartialMap();\n    var ref = locals[name];\n\n    if (ref === undefined) {\n      ref = vm.getSelf().get(name);\n    }\n\n    vm.stack.push(ref);\n  });\n  APPEND_OPCODES.add(37\n  /* RootScope */\n  , (vm, {\n    op1: symbols\n  }) => {\n    vm.pushRootScope(symbols);\n  });\n  APPEND_OPCODES.add(23\n  /* GetProperty */\n  , (vm, {\n    op1: _key\n  }) => {\n    var key = vm[CONSTANTS].getString(_key);\n    var expr = vm.stack.pop();\n    vm.stack.push(expr.get(key));\n  });\n  APPEND_OPCODES.add(24\n  /* GetBlock */\n  , (vm, {\n    op1: _block\n  }) => {\n    var {\n      stack\n    } = vm;\n    var block = vm.scope().getBlock(_block);\n    stack.push(block);\n  });\n  APPEND_OPCODES.add(25\n  /* JitSpreadBlock */\n  , vm => {\n    var {\n      stack\n    } = vm;\n    var block = stack.pop();\n\n    if (block && !isUndefinedReference(block)) {\n      stack.push(block[2]);\n      stack.push(block[1]);\n      stack.push(block[0]);\n    } else {\n      stack.push(null);\n      stack.push(null);\n      stack.push(null);\n    }\n  });\n\n  function isUndefinedReference(input) {\n    return input === UNDEFINED_REFERENCE;\n  }\n\n  APPEND_OPCODES.add(26\n  /* HasBlock */\n  , vm => {\n    var {\n      stack\n    } = vm;\n    var block = stack.pop();\n\n    if (block && !isUndefinedReference(block)) {\n      stack.push(TRUE_REFERENCE);\n    } else {\n      stack.push(FALSE_REFERENCE);\n    }\n  });\n  APPEND_OPCODES.add(27\n  /* HasBlockParams */\n  , vm => {\n    // FIXME(mmun): should only need to push the symbol table\n    var block = vm.stack.pop();\n    var scope = vm.stack.pop();\n    var table = vm.stack.pop();\n    var hasBlockParams = table && table.parameters.length;\n    vm.stack.push(hasBlockParams ? TRUE_REFERENCE : FALSE_REFERENCE);\n  });\n  APPEND_OPCODES.add(28\n  /* Concat */\n  , (vm, {\n    op1: count\n  }) => {\n    var out = new Array(count);\n\n    for (var i = count; i > 0; i--) {\n      var offset = i - 1;\n      out[offset] = vm.stack.pop();\n    }\n\n    vm.stack.push(new ConcatReference(out));\n  });\n  /**\n   * Converts a ComponentCapabilities object into a 32-bit integer representation.\n   */\n\n  function capabilityFlagsFrom(capabilities) {\n    return 0 | (capabilities.dynamicLayout ? 1\n    /* DynamicLayout */\n    : 0) | (capabilities.dynamicTag ? 2\n    /* DynamicTag */\n    : 0) | (capabilities.prepareArgs ? 4\n    /* PrepareArgs */\n    : 0) | (capabilities.createArgs ? 8\n    /* CreateArgs */\n    : 0) | (capabilities.attributeHook ? 16\n    /* AttributeHook */\n    : 0) | (capabilities.elementHook ? 32\n    /* ElementHook */\n    : 0) | (capabilities.dynamicScope ? 64\n    /* DynamicScope */\n    : 0) | (capabilities.createCaller ? 128\n    /* CreateCaller */\n    : 0) | (capabilities.updateHook ? 256\n    /* UpdateHook */\n    : 0) | (capabilities.createInstance ? 512\n    /* CreateInstance */\n    : 0) | (capabilities.wrapped ? 1024\n    /* Wrapped */\n    : 0) | (capabilities.willDestroy ? 2048\n    /* WillDestroy */\n    : 0);\n  }\n\n  function managerHasCapability(_manager, capabilities, capability) {\n    return !!(capabilities & capability);\n  }\n\n  function hasCapability(capabilities, capability) {\n    return !!(capabilities & capability);\n  }\n\n  var _a$2;\n\n  var CURRIED_COMPONENT_DEFINITION_BRAND = (0, _util.symbol)('CURRIED COMPONENT DEFINITION');\n\n  function isCurriedComponentDefinition(definition) {\n    return !!(definition && definition[CURRIED_COMPONENT_DEFINITION_BRAND]);\n  }\n\n  function isComponentDefinition(definition) {\n    return !!(definition && definition[CURRIED_COMPONENT_DEFINITION_BRAND]);\n  }\n\n  class CurriedComponentDefinition {\n    /** @internal */\n    constructor(inner, args) {\n      this.inner = inner;\n      this.args = args;\n      this[_a$2] = true;\n    }\n\n    unwrap(args) {\n      args.realloc(this.offset);\n      var definition = this;\n\n      while (true) {\n        var {\n          args: curriedArgs,\n          inner\n        } = definition;\n\n        if (curriedArgs) {\n          args.positional.prepend(curriedArgs.positional);\n          args.named.merge(curriedArgs.named);\n        }\n\n        if (!isCurriedComponentDefinition(inner)) {\n          return inner;\n        }\n\n        definition = inner;\n      }\n    }\n    /** @internal */\n\n\n    get offset() {\n      var {\n        inner,\n        args\n      } = this;\n      var length = args ? args.positional.length : 0;\n      return isCurriedComponentDefinition(inner) ? length + inner.offset : length;\n    }\n\n  }\n\n  _exports.CurriedComponentDefinition = CurriedComponentDefinition;\n  _a$2 = CURRIED_COMPONENT_DEFINITION_BRAND;\n\n  function curry(spec, args = null) {\n    return new CurriedComponentDefinition(spec, args);\n  }\n\n  function resolveComponent(resolver, name, meta) {\n    var definition = resolver.lookupComponent(name, meta);\n    return definition;\n  }\n\n  class ClassListReference {\n    constructor(list) {\n      this.list = list;\n      this.tag = combineTagged(list);\n      this.list = list;\n    }\n\n    value() {\n      var ret = [];\n      var {\n        list\n      } = this;\n\n      for (var i = 0; i < list.length; i++) {\n        var value = normalizeStringValue(list[i].value());\n        if (value) ret.push(value);\n      }\n\n      return ret.length === 0 ? null : ret.join(' ');\n    }\n\n  }\n\n  class CurryComponentReference {\n    constructor(inner, resolver, meta, args) {\n      this.inner = inner;\n      this.resolver = resolver;\n      this.meta = meta;\n      this.args = args;\n      this.tag = inner.tag;\n      this.lastValue = null;\n      this.lastDefinition = null;\n    }\n\n    value() {\n      var {\n        inner,\n        lastValue\n      } = this;\n      var value = inner.value();\n\n      if (value === lastValue) {\n        return this.lastDefinition;\n      }\n\n      var definition = null;\n\n      if (isCurriedComponentDefinition(value)) {\n        definition = value;\n      } else if (typeof value === 'string' && value) {\n        var {\n          resolver,\n          meta\n        } = this;\n        definition = resolveComponent(resolver, value, meta);\n      }\n\n      definition = this.curry(definition);\n      this.lastValue = value;\n      this.lastDefinition = definition;\n      return definition;\n    }\n\n    get() {\n      return UNDEFINED_REFERENCE;\n    }\n\n    curry(definition) {\n      var {\n        args\n      } = this;\n\n      if (!args && isCurriedComponentDefinition(definition)) {\n        return definition;\n      } else if (!definition) {\n        return null;\n      } else {\n        return new CurriedComponentDefinition(definition, args);\n      }\n    }\n\n  }\n\n  class DynamicTextContent extends UpdatingOpcode {\n    constructor(node, reference, lastValue) {\n      super();\n      this.node = node;\n      this.reference = reference;\n      this.lastValue = lastValue;\n      this.type = 'dynamic-text';\n      this.tag = reference.tag;\n      this.lastRevision = (0, _validator.valueForTag)(this.tag);\n    }\n\n    evaluate() {\n      var {\n        reference,\n        tag\n      } = this;\n\n      if (!(0, _validator.validateTag)(tag, this.lastRevision)) {\n        this.lastRevision = (0, _validator.valueForTag)(tag);\n        this.update(reference.value());\n      }\n    }\n\n    update(value) {\n      var {\n        lastValue\n      } = this;\n      if (value === lastValue) return;\n      var normalized;\n\n      if (isEmpty(value)) {\n        normalized = '';\n      } else if (isString(value)) {\n        normalized = value;\n      } else {\n        normalized = String(value);\n      }\n\n      if (normalized !== lastValue) {\n        var textNode = this.node;\n        textNode.nodeValue = this.lastValue = normalized;\n      }\n    }\n\n  }\n\n  class ContentTypeReference {\n    constructor(inner) {\n      this.inner = inner;\n      this.tag = inner.tag;\n    }\n\n    value() {\n      var value = this.inner.value();\n\n      if (shouldCoerce(value)) {\n        return 1\n        /* String */\n        ;\n      } else if (isComponentDefinition(value)) {\n        return 0\n        /* Component */\n        ;\n      } else if (isSafeString(value)) {\n        return 3\n        /* SafeString */\n        ;\n      } else if (isFragment(value)) {\n        return 4\n        /* Fragment */\n        ;\n      } else if (isNode(value)) {\n        return 5\n        /* Node */\n        ;\n      } else {\n          return 1\n          /* String */\n          ;\n        }\n    }\n\n  }\n\n  APPEND_OPCODES.add(43\n  /* AppendHTML */\n  , vm => {\n    var reference = vm.stack.pop();\n    var rawValue = reference.value();\n    var value = isEmpty(rawValue) ? '' : String(rawValue);\n    vm.elements().appendDynamicHTML(value);\n  });\n  APPEND_OPCODES.add(44\n  /* AppendSafeHTML */\n  , vm => {\n    var reference = vm.stack.pop();\n    var rawValue = reference.value().toHTML();\n    var value = isEmpty(rawValue) ? '' : rawValue;\n    vm.elements().appendDynamicHTML(value);\n  });\n  APPEND_OPCODES.add(47\n  /* AppendText */\n  , vm => {\n    var reference = vm.stack.pop();\n    var rawValue = reference.value();\n    var value = isEmpty(rawValue) ? '' : String(rawValue);\n    var node = vm.elements().appendDynamicText(value);\n\n    if (!(0, _validator.isConst)(reference)) {\n      vm.updateWith(new DynamicTextContent(node, reference, value));\n    }\n  });\n  APPEND_OPCODES.add(45\n  /* AppendDocumentFragment */\n  , vm => {\n    var reference = vm.stack.pop();\n    var value = reference.value();\n    vm.elements().appendDynamicFragment(value);\n  });\n  APPEND_OPCODES.add(46\n  /* AppendNode */\n  , vm => {\n    var reference = vm.stack.pop();\n    var value = reference.value();\n    vm.elements().appendDynamicNode(value);\n  });\n  APPEND_OPCODES.add(39\n  /* ChildScope */\n  , vm => vm.pushChildScope());\n  APPEND_OPCODES.add(40\n  /* PopScope */\n  , vm => vm.popScope());\n  APPEND_OPCODES.add(59\n  /* PushDynamicScope */\n  , vm => vm.pushDynamicScope());\n  APPEND_OPCODES.add(60\n  /* PopDynamicScope */\n  , vm => vm.popDynamicScope());\n  APPEND_OPCODES.add(29\n  /* Constant */\n  , (vm, {\n    op1: other\n  }) => {\n    vm.stack.push(vm[CONSTANTS].getOther(other));\n  });\n  APPEND_OPCODES.add(30\n  /* Primitive */\n  , (vm, {\n    op1: primitive\n  }) => {\n    var stack = vm.stack;\n\n    if ((0, _util.isHandle)(primitive)) {\n      var value;\n\n      if (primitive > -1073741825\n      /* NUMBER_MAX_HANDLE */\n      ) {\n          value = vm[CONSTANTS].getString((0, _util.decodeHandle)(primitive, -1\n          /* STRING_MAX_HANDLE */\n          ));\n        } else {\n        value = vm[CONSTANTS].getNumber((0, _util.decodeHandle)(primitive, -1073741825\n        /* NUMBER_MAX_HANDLE */\n        ));\n      }\n\n      stack.pushJs(value);\n    } else {\n      // is already an encoded immediate\n      stack.pushRaw(primitive);\n    }\n  });\n  APPEND_OPCODES.add(31\n  /* PrimitiveReference */\n  , vm => {\n    var stack = vm.stack;\n    stack.push(PrimitiveReference.create(stack.pop()));\n  });\n  APPEND_OPCODES.add(32\n  /* ReifyU32 */\n  , vm => {\n    var stack = vm.stack;\n    stack.push(stack.peek().value());\n  });\n  APPEND_OPCODES.add(33\n  /* Dup */\n  , (vm, {\n    op1: register,\n    op2: offset\n  }) => {\n    var position = vm.fetchValue(register) - offset;\n    vm.stack.dup(position);\n  });\n  APPEND_OPCODES.add(34\n  /* Pop */\n  , (vm, {\n    op1: count\n  }) => {\n    vm.stack.pop(count);\n  });\n  APPEND_OPCODES.add(35\n  /* Load */\n  , (vm, {\n    op1: register\n  }) => {\n    vm.load(register);\n  });\n  APPEND_OPCODES.add(36\n  /* Fetch */\n  , (vm, {\n    op1: register\n  }) => {\n    vm.fetch(register);\n  });\n  APPEND_OPCODES.add(58\n  /* BindDynamicScope */\n  , (vm, {\n    op1: _names\n  }) => {\n    var names = vm[CONSTANTS].getArray(_names);\n    vm.bindDynamicScope(names);\n  });\n  APPEND_OPCODES.add(69\n  /* Enter */\n  , (vm, {\n    op1: args\n  }) => {\n    vm.enter(args);\n  });\n  APPEND_OPCODES.add(70\n  /* Exit */\n  , vm => {\n    vm.exit();\n  });\n  APPEND_OPCODES.add(63\n  /* PushSymbolTable */\n  , (vm, {\n    op1: _table\n  }) => {\n    var stack = vm.stack;\n    stack.push(vm[CONSTANTS].getSerializable(_table));\n  });\n  APPEND_OPCODES.add(62\n  /* PushBlockScope */\n  , vm => {\n    var stack = vm.stack;\n    stack.push(vm.scope());\n  });\n  APPEND_OPCODES.add(61\n  /* CompileBlock */\n  , vm => {\n    var stack = vm.stack;\n    var block = stack.pop();\n\n    if (block) {\n      stack.push(vm.compile(block));\n    } else {\n      stack.push(null);\n    }\n  }, 'jit');\n  APPEND_OPCODES.add(64\n  /* InvokeYield */\n  , vm => {\n    var {\n      stack\n    } = vm;\n    var handle = stack.pop();\n    var scope = stack.pop();\n    var table = stack.pop();\n    var args = stack.pop();\n\n    if (table === null) {\n      // To balance the pop{Frame,Scope}\n      vm.pushFrame();\n      vm.pushScope(scope); // Could be null but it doesnt matter as it is immediatelly popped.\n\n      return;\n    }\n\n    var invokingScope = scope; // If necessary, create a child scope\n\n    {\n      var locals = table.parameters;\n      var localsCount = locals.length;\n\n      if (localsCount > 0) {\n        invokingScope = invokingScope.child();\n\n        for (var i = 0; i < localsCount; i++) {\n          invokingScope.bindSymbol(locals[i], args.at(i));\n        }\n      }\n    }\n    vm.pushFrame();\n    vm.pushScope(invokingScope);\n    vm.call(handle);\n  });\n  APPEND_OPCODES.add(65\n  /* JumpIf */\n  , (vm, {\n    op1: target\n  }) => {\n    var reference = vm.stack.pop();\n\n    if ((0, _validator.isConst)(reference)) {\n      if (reference.value()) {\n        vm.goto(target);\n      }\n    } else {\n      var cache = new _reference.ReferenceCache(reference);\n\n      if (cache.peek()) {\n        vm.goto(target);\n      }\n\n      vm.updateWith(new Assert(cache));\n    }\n  });\n  APPEND_OPCODES.add(66\n  /* JumpUnless */\n  , (vm, {\n    op1: target\n  }) => {\n    var reference = vm.stack.pop();\n\n    if ((0, _validator.isConst)(reference)) {\n      if (!reference.value()) {\n        vm.goto(target);\n      }\n    } else {\n      var cache = new _reference.ReferenceCache(reference);\n\n      if (!cache.peek()) {\n        vm.goto(target);\n      }\n\n      vm.updateWith(new Assert(cache));\n    }\n  });\n  APPEND_OPCODES.add(67\n  /* JumpEq */\n  , (vm, {\n    op1: target,\n    op2: comparison\n  }) => {\n    var other = vm.stack.peek();\n\n    if (other === comparison) {\n      vm.goto(target);\n    }\n  });\n  APPEND_OPCODES.add(68\n  /* AssertSame */\n  , vm => {\n    var reference = vm.stack.peek();\n\n    if (!(0, _validator.isConst)(reference)) {\n      vm.updateWith(Assert.initialize(new _reference.ReferenceCache(reference)));\n    }\n  });\n  APPEND_OPCODES.add(71\n  /* ToBoolean */\n  , vm => {\n    var {\n      env,\n      stack\n    } = vm;\n    stack.push(env.toConditionalReference(stack.pop()));\n  });\n\n  class Assert extends UpdatingOpcode {\n    constructor(cache) {\n      super();\n      this.type = 'assert';\n      this.tag = cache.tag;\n      this.cache = cache;\n    }\n\n    static initialize(cache) {\n      var assert = new Assert(cache);\n      cache.peek();\n      return assert;\n    }\n\n    evaluate(vm) {\n      var {\n        cache\n      } = this;\n\n      if ((0, _reference.isModified)(cache.revalidate())) {\n        vm.throw();\n      }\n    }\n\n  }\n\n  class JumpIfNotModifiedOpcode extends UpdatingOpcode {\n    constructor(tag, target) {\n      super();\n      this.target = target;\n      this.type = 'jump-if-not-modified';\n      this.tag = tag;\n      this.lastRevision = (0, _validator.valueForTag)(tag);\n    }\n\n    evaluate(vm) {\n      var {\n        tag,\n        target,\n        lastRevision\n      } = this;\n\n      if (!vm.alwaysRevalidate && (0, _validator.validateTag)(tag, lastRevision)) {\n        vm.goto(target);\n      }\n    }\n\n    didModify() {\n      this.lastRevision = (0, _validator.valueForTag)(this.tag);\n    }\n\n  }\n\n  class DidModifyOpcode extends UpdatingOpcode {\n    constructor(target) {\n      super();\n      this.target = target;\n      this.type = 'did-modify';\n      this.tag = _validator.CONSTANT_TAG;\n    }\n\n    evaluate() {\n      this.target.didModify();\n    }\n\n  }\n\n  class LabelOpcode {\n    constructor(label) {\n      this.tag = _validator.CONSTANT_TAG;\n      this.type = 'label';\n      this.label = null;\n      this.prev = null;\n      this.next = null;\n      (0, _util.initializeGuid)(this);\n      this.label = label;\n    }\n\n    evaluate() {}\n\n    inspect() {\n      return `${this.label} [${this._guid}]`;\n    }\n\n  }\n\n  APPEND_OPCODES.add(41\n  /* Text */\n  , (vm, {\n    op1: text\n  }) => {\n    vm.elements().appendText(vm[CONSTANTS].getString(text));\n  });\n  APPEND_OPCODES.add(42\n  /* Comment */\n  , (vm, {\n    op1: text\n  }) => {\n    vm.elements().appendComment(vm[CONSTANTS].getString(text));\n  });\n  APPEND_OPCODES.add(48\n  /* OpenElement */\n  , (vm, {\n    op1: tag\n  }) => {\n    vm.elements().openElement(vm[CONSTANTS].getString(tag));\n  });\n  APPEND_OPCODES.add(49\n  /* OpenDynamicElement */\n  , vm => {\n    var tagName = vm.stack.pop().value();\n    vm.elements().openElement(tagName);\n  });\n  APPEND_OPCODES.add(50\n  /* PushRemoteElement */\n  , vm => {\n    var elementRef = vm.stack.pop();\n    var insertBeforeRef = vm.stack.pop();\n    var guidRef = vm.stack.pop();\n    var element;\n    var insertBefore;\n    var guid = guidRef.value();\n\n    if ((0, _validator.isConst)(elementRef)) {\n      element = elementRef.value();\n    } else {\n      var cache = new _reference.ReferenceCache(elementRef);\n      element = cache.peek();\n      vm.updateWith(new Assert(cache));\n    }\n\n    if (insertBeforeRef.value() !== undefined) {\n      if ((0, _validator.isConst)(insertBeforeRef)) {\n        insertBefore = insertBeforeRef.value();\n      } else {\n        var _cache = new _reference.ReferenceCache(insertBeforeRef);\n\n        insertBefore = _cache.peek();\n        vm.updateWith(new Assert(_cache));\n      }\n    }\n\n    var block = vm.elements().pushRemoteElement(element, guid, insertBefore);\n    if (block) vm.associateDestroyable(block);\n  });\n  APPEND_OPCODES.add(56\n  /* PopRemoteElement */\n  , vm => {\n    vm.elements().popRemoteElement();\n  });\n  APPEND_OPCODES.add(54\n  /* FlushElement */\n  , vm => {\n    var operations = vm.fetchValue(_vm2.$t0);\n    var modifiers = null;\n\n    if (operations) {\n      modifiers = operations.flush(vm);\n      vm.loadValue(_vm2.$t0, null);\n    }\n\n    vm.elements().flushElement(modifiers);\n  });\n  APPEND_OPCODES.add(55\n  /* CloseElement */\n  , vm => {\n    var modifiers = vm.elements().closeElement();\n\n    if (modifiers) {\n      modifiers.forEach(([manager, modifier]) => {\n        vm.env.scheduleInstallModifier(modifier, manager);\n        var d = manager.getDestructor(modifier);\n\n        if (d) {\n          vm.associateDestroyable(d);\n        }\n      });\n    }\n  });\n  APPEND_OPCODES.add(57\n  /* Modifier */\n  , (vm, {\n    op1: handle\n  }) => {\n    var {\n      manager,\n      state\n    } = vm.runtime.resolver.resolve(handle);\n    var stack = vm.stack;\n    var args = stack.pop();\n    var {\n      constructing,\n      updateOperations\n    } = vm.elements();\n    var dynamicScope = vm.dynamicScope();\n    var modifier = manager.create(constructing, state, args, dynamicScope, updateOperations);\n    var operations = vm.fetchValue(_vm2.$t0);\n    operations.addModifier(manager, modifier);\n    var tag = manager.getTag(modifier);\n\n    if (!(0, _validator.isConstTag)(tag)) {\n      vm.updateWith(new UpdateModifierOpcode(tag, manager, modifier));\n    }\n  });\n\n  class UpdateModifierOpcode extends UpdatingOpcode {\n    constructor(tag, manager, modifier) {\n      super();\n      this.tag = tag;\n      this.manager = manager;\n      this.modifier = modifier;\n      this.type = 'update-modifier';\n      this.lastUpdated = (0, _validator.valueForTag)(tag);\n    }\n\n    evaluate(vm) {\n      var {\n        manager,\n        modifier,\n        tag,\n        lastUpdated\n      } = this;\n\n      if (!(0, _validator.validateTag)(tag, lastUpdated)) {\n        vm.env.scheduleUpdateModifier(modifier, manager);\n        this.lastUpdated = (0, _validator.valueForTag)(tag);\n      }\n    }\n\n  }\n\n  APPEND_OPCODES.add(51\n  /* StaticAttr */\n  , (vm, {\n    op1: _name,\n    op2: _value,\n    op3: _namespace\n  }) => {\n    var name = vm[CONSTANTS].getString(_name);\n    var value = vm[CONSTANTS].getString(_value);\n    var namespace = _namespace ? vm[CONSTANTS].getString(_namespace) : null;\n    vm.elements().setStaticAttribute(name, value, namespace);\n  });\n  APPEND_OPCODES.add(52\n  /* DynamicAttr */\n  , (vm, {\n    op1: _name,\n    op2: trusting,\n    op3: _namespace\n  }) => {\n    var name = vm[CONSTANTS].getString(_name);\n    var reference = vm.stack.pop();\n    var value = reference.value();\n    var namespace = _namespace ? vm[CONSTANTS].getString(_namespace) : null;\n    var attribute = vm.elements().setDynamicAttribute(name, value, !!trusting, namespace);\n\n    if (!(0, _validator.isConst)(reference)) {\n      vm.updateWith(new UpdateDynamicAttributeOpcode(reference, attribute));\n    }\n  });\n\n  class UpdateDynamicAttributeOpcode extends UpdatingOpcode {\n    constructor(reference, attribute) {\n      super();\n      this.reference = reference;\n      this.attribute = attribute;\n      this.type = 'patch-element';\n      var {\n        tag\n      } = reference;\n      this.tag = tag;\n      this.lastRevision = (0, _validator.valueForTag)(tag);\n    }\n\n    evaluate(vm) {\n      var {\n        attribute,\n        reference,\n        tag\n      } = this;\n\n      if (!(0, _validator.validateTag)(tag, this.lastRevision)) {\n        attribute.update(reference.value(), vm.env);\n        this.lastRevision = (0, _validator.valueForTag)(tag);\n      }\n    }\n\n  }\n  /**\n   * The VM creates a new ComponentInstance data structure for every component\n   * invocation it encounters.\n   *\n   * Similar to how a ComponentDefinition contains state about all components of a\n   * particular type, a ComponentInstance contains state specific to a particular\n   * instance of a component type. It also contains a pointer back to its\n   * component type's ComponentDefinition.\n   */\n\n\n  var COMPONENT_INSTANCE = (0, _util.symbol)('COMPONENT_INSTANCE');\n  APPEND_OPCODES.add(77\n  /* IsComponent */\n  , vm => {\n    var stack = vm.stack;\n    var ref = stack.pop();\n    stack.push(new ConditionalReference(ref, isCurriedComponentDefinition));\n  });\n  APPEND_OPCODES.add(78\n  /* ContentType */\n  , vm => {\n    var stack = vm.stack;\n    var ref = stack.peek();\n    stack.push(new ContentTypeReference(ref));\n  });\n  APPEND_OPCODES.add(79\n  /* CurryComponent */\n  , (vm, {\n    op1: _meta\n  }) => {\n    var stack = vm.stack;\n    var definition = stack.pop();\n    var capturedArgs = stack.pop();\n    var meta = vm[CONSTANTS].getTemplateMeta(_meta);\n    var resolver = vm.runtime.resolver;\n    vm.loadValue(_vm2.$v0, new CurryComponentReference(definition, resolver, meta, capturedArgs)); // expectStackChange(vm.stack, -args.length - 1, 'CurryComponent');\n  });\n  APPEND_OPCODES.add(80\n  /* PushComponentDefinition */\n  , (vm, {\n    op1: handle\n  }) => {\n    var definition = vm.runtime.resolver.resolve(handle);\n    var {\n      manager\n    } = definition;\n    var capabilities = capabilityFlagsFrom(manager.getCapabilities(definition.state));\n    var instance = {\n      [COMPONENT_INSTANCE]: true,\n      definition,\n      manager,\n      capabilities,\n      state: null,\n      handle: null,\n      table: null,\n      lookup: null\n    };\n    vm.stack.push(instance);\n  });\n  APPEND_OPCODES.add(83\n  /* ResolveDynamicComponent */\n  , (vm, {\n    op1: _meta\n  }) => {\n    var stack = vm.stack;\n    var component = stack.pop().value();\n    var meta = vm[CONSTANTS].getTemplateMeta(_meta);\n    vm.loadValue(_vm2.$t1, null); // Clear the temp register\n\n    var definition;\n\n    if (typeof component === 'string') {\n      var resolvedDefinition = resolveComponent(vm.runtime.resolver, component, meta);\n      definition = resolvedDefinition;\n    } else if (isCurriedComponentDefinition(component)) {\n      definition = component;\n    } else {\n      throw (0, _util.unreachable)();\n    }\n\n    stack.push(definition);\n  });\n  APPEND_OPCODES.add(81\n  /* PushDynamicComponentInstance */\n  , vm => {\n    var {\n      stack\n    } = vm;\n    var definition = stack.pop();\n    var capabilities, manager;\n\n    if (isCurriedComponentDefinition(definition)) {\n      manager = capabilities = null;\n    } else {\n      manager = definition.manager;\n      capabilities = capabilityFlagsFrom(manager.getCapabilities(definition.state));\n    }\n\n    stack.push({\n      definition,\n      capabilities,\n      manager,\n      state: null,\n      handle: null,\n      table: null\n    });\n  });\n  APPEND_OPCODES.add(82\n  /* PushCurriedComponent */\n  , vm => {\n    var stack = vm.stack;\n    var component = stack.pop().value();\n    var definition;\n\n    if (isCurriedComponentDefinition(component)) {\n      definition = component;\n    } else {\n      throw (0, _util.unreachable)();\n    }\n\n    stack.push(definition);\n  });\n  APPEND_OPCODES.add(84\n  /* PushArgs */\n  , (vm, {\n    op1: _names,\n    op2: _blockNames,\n    op3: flags\n  }) => {\n    var stack = vm.stack;\n    var names = vm[CONSTANTS].getStringArray(_names);\n    var positionalCount = flags >> 4;\n    var atNames = flags & 0b1000;\n    var blockNames = flags & 0b0111 ? vm[CONSTANTS].getStringArray(_blockNames) : _util.EMPTY_ARRAY;\n    vm[ARGS].setup(stack, names, blockNames, positionalCount, !!atNames);\n    stack.push(vm[ARGS]);\n  });\n  APPEND_OPCODES.add(85\n  /* PushEmptyArgs */\n  , vm => {\n    var {\n      stack\n    } = vm;\n    stack.push(vm[ARGS].empty(stack));\n  });\n  APPEND_OPCODES.add(88\n  /* CaptureArgs */\n  , vm => {\n    var stack = vm.stack;\n    var args = stack.pop();\n    var capturedArgs = args.capture();\n    stack.push(capturedArgs);\n  });\n  APPEND_OPCODES.add(87\n  /* PrepareArgs */\n  , (vm, {\n    op1: _state\n  }) => {\n    var stack = vm.stack;\n    var instance = vm.fetchValue(_state);\n    var args = stack.pop();\n    var {\n      definition\n    } = instance;\n\n    if (isCurriedComponentDefinition(definition)) {\n      definition = resolveCurriedComponentDefinition(instance, definition, args);\n    }\n\n    var {\n      manager,\n      state\n    } = definition;\n    var capabilities = instance.capabilities;\n\n    if (!managerHasCapability(manager, capabilities, 4\n    /* PrepareArgs */\n    )) {\n      stack.push(args);\n      return;\n    }\n\n    var blocks = args.blocks.values;\n    var blockNames = args.blocks.names;\n    var preparedArgs = manager.prepareArgs(state, args);\n\n    if (preparedArgs) {\n      args.clear();\n\n      for (var i = 0; i < blocks.length; i++) {\n        stack.push(blocks[i]);\n      }\n\n      var {\n        positional,\n        named\n      } = preparedArgs;\n      var positionalCount = positional.length;\n\n      for (var _i5 = 0; _i5 < positionalCount; _i5++) {\n        stack.push(positional[_i5]);\n      }\n\n      var names = Object.keys(named);\n\n      for (var _i6 = 0; _i6 < names.length; _i6++) {\n        stack.push(named[names[_i6]]);\n      }\n\n      args.setup(stack, names, blockNames, positionalCount, false);\n    }\n\n    stack.push(args);\n  });\n\n  function resolveCurriedComponentDefinition(instance, definition, args) {\n    var unwrappedDefinition = instance.definition = definition.unwrap(args);\n    var {\n      manager,\n      state\n    } = unwrappedDefinition;\n    instance.manager = manager;\n    instance.capabilities = capabilityFlagsFrom(manager.getCapabilities(state));\n    return unwrappedDefinition;\n  }\n\n  APPEND_OPCODES.add(89\n  /* CreateComponent */\n  , (vm, {\n    op1: flags,\n    op2: _state\n  }) => {\n    var instance = vm.fetchValue(_state);\n    var {\n      definition,\n      manager\n    } = instance;\n    var capabilities = instance.capabilities = capabilityFlagsFrom(manager.getCapabilities(definition.state));\n\n    if (!managerHasCapability(manager, capabilities, 512\n    /* CreateInstance */\n    )) {\n      throw new Error(`BUG`);\n    }\n\n    var dynamicScope = null;\n\n    if (managerHasCapability(manager, capabilities, 64\n    /* DynamicScope */\n    )) {\n      dynamicScope = vm.dynamicScope();\n    }\n\n    var hasDefaultBlock = flags & 1;\n    var args = null;\n\n    if (managerHasCapability(manager, capabilities, 8\n    /* CreateArgs */\n    )) {\n      args = vm.stack.peek();\n    }\n\n    var self = null;\n\n    if (managerHasCapability(manager, capabilities, 128\n    /* CreateCaller */\n    )) {\n      self = vm.getSelf();\n    }\n\n    var state = manager.create(vm.env, definition.state, args, dynamicScope, self, !!hasDefaultBlock); // We want to reuse the `state` POJO here, because we know that the opcodes\n    // only transition at exactly one place.\n\n    instance.state = state;\n    var tag = manager.getTag(state);\n\n    if (managerHasCapability(manager, capabilities, 256\n    /* UpdateHook */\n    ) && !(0, _validator.isConstTag)(tag)) {\n      vm.updateWith(new UpdateComponentOpcode(tag, state, manager, dynamicScope));\n    }\n  });\n  APPEND_OPCODES.add(90\n  /* RegisterComponentDestructor */\n  , (vm, {\n    op1: _state\n  }) => {\n    var {\n      manager,\n      state,\n      capabilities\n    } = vm.fetchValue(_state);\n    var d = manager.getDestructor(state);\n\n    if (true\n    /* DEBUG */\n    && !hasCapability(capabilities, 2048\n    /* WillDestroy */\n    ) && d !== null && typeof 'willDestroy' in d) {\n      throw new Error('BUG: Destructor has willDestroy, but the willDestroy capability was not enabled for this component. Pre-destruction hooks must be explicitly opted into');\n    }\n\n    if (d) vm.associateDestroyable(d);\n  });\n  APPEND_OPCODES.add(100\n  /* BeginComponentTransaction */\n  , vm => {\n    vm.beginCacheGroup();\n    vm.elements().pushSimpleBlock();\n  });\n  APPEND_OPCODES.add(91\n  /* PutComponentOperations */\n  , vm => {\n    vm.loadValue(_vm2.$t0, new ComponentElementOperations());\n  });\n  APPEND_OPCODES.add(53\n  /* ComponentAttr */\n  , (vm, {\n    op1: _name,\n    op2: trusting,\n    op3: _namespace\n  }) => {\n    var name = vm[CONSTANTS].getString(_name);\n    var reference = vm.stack.pop();\n    var namespace = _namespace ? vm[CONSTANTS].getString(_namespace) : null;\n    vm.fetchValue(_vm2.$t0).setAttribute(name, reference, !!trusting, namespace);\n  });\n  APPEND_OPCODES.add(108\n  /* StaticComponentAttr */\n  , (vm, {\n    op1: _name,\n    op2: _value,\n    op3: _namespace\n  }) => {\n    var name = vm[CONSTANTS].getString(_name);\n    var value = vm[CONSTANTS].getString(_value);\n    var namespace = _namespace ? vm[CONSTANTS].getString(_namespace) : null;\n    vm.fetchValue(_vm2.$t0).setStaticAttribute(name, value, namespace);\n  });\n\n  class ComponentElementOperations {\n    constructor() {\n      this.attributes = (0, _util.dict)();\n      this.classes = [];\n      this.modifiers = [];\n    }\n\n    setAttribute(name, value, trusting, namespace) {\n      var deferred = {\n        value,\n        namespace,\n        trusting\n      };\n\n      if (name === 'class') {\n        this.classes.push(value);\n      }\n\n      this.attributes[name] = deferred;\n    }\n\n    setStaticAttribute(name, value, namespace) {\n      var deferred = {\n        value,\n        namespace\n      };\n\n      if (name === 'class') {\n        this.classes.push(value);\n      }\n\n      this.attributes[name] = deferred;\n    }\n\n    addModifier(manager, state) {\n      this.modifiers.push([manager, state]);\n    }\n\n    flush(vm) {\n      var type;\n      var attributes = this.attributes;\n\n      for (var _name3 in this.attributes) {\n        if (_name3 === 'type') {\n          type = attributes[_name3];\n          continue;\n        }\n\n        var attr = this.attributes[_name3];\n\n        if (_name3 === 'class') {\n          setDeferredAttr(vm, 'class', mergeClasses(this.classes), attr.namespace, attr.trusting);\n        } else {\n          setDeferredAttr(vm, _name3, attr.value, attr.namespace, attr.trusting);\n        }\n      }\n\n      if (type !== undefined) {\n        setDeferredAttr(vm, 'type', type.value, type.namespace, type.trusting);\n      }\n\n      return this.modifiers;\n    }\n\n  }\n\n  function mergeClasses(classes) {\n    if (classes.length === 0) {\n      return '';\n    }\n\n    if (classes.length === 1) {\n      return classes[0];\n    }\n\n    if (allStringClasses(classes)) {\n      return classes.join(' ');\n    }\n\n    return makeClassList(classes);\n  }\n\n  function makeClassList(classes) {\n    for (var i = 0; i < classes.length; i++) {\n      var value = classes[i];\n\n      if (typeof value === 'string') {\n        classes[i] = PrimitiveReference.create(value);\n      }\n    }\n\n    return new ClassListReference(classes);\n  }\n\n  function allStringClasses(classes) {\n    for (var i = 0; i < classes.length; i++) {\n      if (typeof classes[i] !== 'string') {\n        return false;\n      }\n    }\n\n    return true;\n  }\n\n  function setDeferredAttr(vm, name, value, namespace, trusting = false) {\n    if (typeof value === 'string') {\n      vm.elements().setStaticAttribute(name, value, namespace);\n    } else {\n      var attribute = vm.elements().setDynamicAttribute(name, value.value(), trusting, namespace);\n\n      if (!(0, _validator.isConst)(value)) {\n        vm.updateWith(new UpdateDynamicAttributeOpcode(value, attribute));\n      }\n    }\n  }\n\n  APPEND_OPCODES.add(102\n  /* DidCreateElement */\n  , (vm, {\n    op1: _state\n  }) => {\n    var {\n      definition,\n      state\n    } = vm.fetchValue(_state);\n    var {\n      manager\n    } = definition;\n    var operations = vm.fetchValue(_vm2.$t0);\n    manager.didCreateElement(state, vm.elements().constructing, operations);\n  });\n  APPEND_OPCODES.add(92\n  /* GetComponentSelf */\n  , (vm, {\n    op1: _state\n  }) => {\n    var {\n      definition,\n      state\n    } = vm.fetchValue(_state);\n    var {\n      manager\n    } = definition;\n    vm.stack.push(manager.getSelf(state));\n  });\n  APPEND_OPCODES.add(93\n  /* GetComponentTagName */\n  , (vm, {\n    op1: _state\n  }) => {\n    var {\n      definition,\n      state\n    } = vm.fetchValue(_state);\n    var {\n      manager\n    } = definition;\n    vm.stack.push(manager.getTagName(state));\n  }); // Dynamic Invocation Only\n\n  APPEND_OPCODES.add(95\n  /* GetJitComponentLayout */\n  , (vm, {\n    op1: _state\n  }) => {\n    var instance = vm.fetchValue(_state);\n    var manager = instance.manager;\n    var {\n      definition\n    } = instance;\n    var {\n      stack\n    } = vm;\n    var {\n      capabilities\n    } = instance; // let invoke: { handle: number; symbolTable: ProgramSymbolTable };\n\n    var layout;\n\n    if (hasStaticLayoutCapability(capabilities, manager)) {\n      layout = manager.getJitStaticLayout(definition.state, vm.runtime.resolver);\n    } else if (hasDynamicLayoutCapability(capabilities, manager)) {\n      var template = (0, _util.unwrapTemplate)(manager.getJitDynamicLayout(instance.state, vm.runtime.resolver));\n\n      if (hasCapability(capabilities, 1024\n      /* Wrapped */\n      )) {\n        layout = template.asWrappedLayout();\n      } else {\n        layout = template.asLayout();\n      }\n    } else {\n      throw (0, _util.unreachable)();\n    }\n\n    var handle = layout.compile(vm.context);\n    stack.push(layout.symbolTable);\n    stack.push(handle);\n  }, 'jit'); // Dynamic Invocation Only\n\n  APPEND_OPCODES.add(94\n  /* GetAotComponentLayout */\n  , (vm, {\n    op1: _state\n  }) => {\n    var instance = vm.fetchValue(_state);\n    var {\n      manager,\n      definition\n    } = instance;\n    var {\n      stack\n    } = vm;\n    var {\n      state: instanceState,\n      capabilities\n    } = instance;\n    var {\n      state: definitionState\n    } = definition;\n    var invoke;\n\n    if (hasStaticLayoutCapability(capabilities, manager)) {\n      invoke = manager.getAotStaticLayout(definitionState, vm.runtime.resolver);\n    } else if (hasDynamicLayoutCapability(capabilities, manager)) {\n      invoke = manager.getAotDynamicLayout(instanceState, vm.runtime.resolver);\n    } else {\n      throw (0, _util.unreachable)();\n    }\n\n    stack.push(invoke.symbolTable);\n    stack.push(invoke.handle);\n  }); // These types are absurd here\n\n  function hasStaticLayoutCapability(capabilities, _manager) {\n    return managerHasCapability(_manager, capabilities, 1\n    /* DynamicLayout */\n    ) === false;\n  }\n\n  function hasDynamicLayoutCapability(capabilities, _manager) {\n    return managerHasCapability(_manager, capabilities, 1\n    /* DynamicLayout */\n    ) === true;\n  }\n\n  APPEND_OPCODES.add(76\n  /* Main */\n  , (vm, {\n    op1: register\n  }) => {\n    var definition = vm.stack.pop();\n    var invocation = vm.stack.pop();\n    var {\n      manager\n    } = definition;\n    var capabilities = capabilityFlagsFrom(manager.getCapabilities(definition.state));\n    var state = {\n      [COMPONENT_INSTANCE]: true,\n      definition,\n      manager,\n      capabilities,\n      state: null,\n      handle: invocation.handle,\n      table: invocation.symbolTable,\n      lookup: null\n    };\n    vm.loadValue(register, state);\n  });\n  APPEND_OPCODES.add(98\n  /* PopulateLayout */\n  , (vm, {\n    op1: _state\n  }) => {\n    var {\n      stack\n    } = vm;\n    var handle = stack.pop();\n    var table = stack.pop();\n    var state = vm.fetchValue(_state);\n    state.handle = handle;\n    state.table = table;\n  });\n  APPEND_OPCODES.add(38\n  /* VirtualRootScope */\n  , (vm, {\n    op1: _state\n  }) => {\n    var {\n      symbols\n    } = vm.fetchValue(_state).table;\n    vm.pushRootScope(symbols.length + 1);\n  });\n  APPEND_OPCODES.add(97\n  /* SetupForEval */\n  , (vm, {\n    op1: _state\n  }) => {\n    var state = vm.fetchValue(_state);\n\n    if (state.table.hasEval) {\n      var lookup = state.lookup = (0, _util.dict)();\n      vm.scope().bindEvalScope(lookup);\n    }\n  });\n  APPEND_OPCODES.add(17\n  /* SetNamedVariables */\n  , (vm, {\n    op1: _state\n  }) => {\n    var state = vm.fetchValue(_state);\n    var scope = vm.scope();\n    var args = vm.stack.peek();\n    var callerNames = args.named.atNames;\n\n    for (var i = callerNames.length - 1; i >= 0; i--) {\n      var atName = callerNames[i];\n      var symbol$$1 = state.table.symbols.indexOf(callerNames[i]);\n      var value = args.named.get(atName, true);\n      if (symbol$$1 !== -1) scope.bindSymbol(symbol$$1 + 1, value);\n      if (state.lookup) state.lookup[atName] = value;\n    }\n  });\n\n  function bindBlock(symbolName, blockName, state, blocks, vm) {\n    var symbol$$1 = state.table.symbols.indexOf(symbolName);\n    var block = blocks.get(blockName);\n    if (symbol$$1 !== -1) vm.scope().bindBlock(symbol$$1 + 1, block);\n    if (state.lookup) state.lookup[symbolName] = block;\n  }\n\n  APPEND_OPCODES.add(18\n  /* SetBlocks */\n  , (vm, {\n    op1: _state\n  }) => {\n    var state = vm.fetchValue(_state);\n    var {\n      blocks\n    } = vm.stack.peek();\n\n    for (var i = 0; i < blocks.names.length; i++) {\n      bindBlock(blocks.symbolNames[i], blocks.names[i], state, blocks, vm);\n    }\n  }); // Dynamic Invocation Only\n\n  APPEND_OPCODES.add(99\n  /* InvokeComponentLayout */\n  , (vm, {\n    op1: _state\n  }) => {\n    var state = vm.fetchValue(_state);\n    vm.call(state.handle);\n  });\n  APPEND_OPCODES.add(103\n  /* DidRenderLayout */\n  , (vm, {\n    op1: _state\n  }) => {\n    var {\n      manager,\n      state,\n      capabilities\n    } = vm.fetchValue(_state);\n    var bounds = vm.elements().popBlock();\n\n    if (!managerHasCapability(manager, capabilities, 512\n    /* CreateInstance */\n    )) {\n      throw new Error(`BUG`);\n    }\n\n    var mgr = manager;\n    mgr.didRenderLayout(state, bounds);\n    vm.env.didCreate(state, manager);\n    vm.updateWith(new DidUpdateLayoutOpcode(manager, state, bounds));\n  });\n  APPEND_OPCODES.add(101\n  /* CommitComponentTransaction */\n  , vm => {\n    vm.commitCacheGroup();\n  });\n\n  class UpdateComponentOpcode extends UpdatingOpcode {\n    constructor(tag, component, manager, dynamicScope) {\n      super();\n      this.tag = tag;\n      this.component = component;\n      this.manager = manager;\n      this.dynamicScope = dynamicScope;\n      this.type = 'update-component';\n    }\n\n    evaluate(_vm) {\n      var {\n        component,\n        manager,\n        dynamicScope\n      } = this;\n      manager.update(component, dynamicScope);\n    }\n\n  }\n\n  class DidUpdateLayoutOpcode extends UpdatingOpcode {\n    constructor(manager, component, bounds) {\n      super();\n      this.manager = manager;\n      this.component = component;\n      this.bounds = bounds;\n      this.type = 'did-update-layout';\n      this.tag = _validator.CONSTANT_TAG;\n    }\n\n    evaluate(vm) {\n      var {\n        manager,\n        component,\n        bounds\n      } = this;\n      manager.didUpdateLayout(component, bounds);\n      vm.env.didUpdate(component, manager);\n    }\n\n  }\n\n  function debugCallback(context, get) {\n    console.info('Use `context`, and `get(<path>)` to debug this template.'); // for example...\n    // eslint-disable-next-line no-unused-expressions\n\n    context === get('this'); // eslint-disable-next-line no-debugger\n\n    debugger;\n  }\n\n  var callback = debugCallback; // For testing purposes\n\n  function setDebuggerCallback(cb) {\n    callback = cb;\n  }\n\n  function resetDebuggerCallback() {\n    callback = debugCallback;\n  }\n\n  class ScopeInspector {\n    constructor(scope, symbols, evalInfo) {\n      this.scope = scope;\n      this.locals = (0, _util.dict)();\n\n      for (var i = 0; i < evalInfo.length; i++) {\n        var slot = evalInfo[i];\n        var _name4 = symbols[slot - 1];\n        var ref = scope.getSymbol(slot);\n        this.locals[_name4] = ref;\n      }\n    }\n\n    get(path) {\n      var {\n        scope,\n        locals\n      } = this;\n      var parts = path.split('.');\n      var [head, ...tail] = path.split('.');\n      var evalScope = scope.getEvalScope();\n      var ref;\n\n      if (head === 'this') {\n        ref = scope.getSelf();\n      } else if (locals[head]) {\n        ref = locals[head];\n      } else if (head.indexOf('@') === 0 && evalScope[head]) {\n        ref = evalScope[head];\n      } else {\n        ref = this.scope.getSelf();\n        tail = parts;\n      }\n\n      return tail.reduce((r, part) => r.get(part), ref);\n    }\n\n  }\n\n  APPEND_OPCODES.add(106\n  /* Debugger */\n  , (vm, {\n    op1: _symbols,\n    op2: _evalInfo\n  }) => {\n    var symbols = vm[CONSTANTS].getStringArray(_symbols);\n    var evalInfo = vm[CONSTANTS].getArray(_evalInfo);\n    var inspector = new ScopeInspector(vm.scope(), symbols, evalInfo);\n    callback(vm.getSelf().value(), path => inspector.get(path).value());\n  });\n  APPEND_OPCODES.add(104\n  /* InvokePartial */\n  , (vm, {\n    op1: _meta,\n    op2: _symbols,\n    op3: _evalInfo\n  }) => {\n    var {\n      [CONSTANTS]: constants,\n      stack\n    } = vm;\n    var name = stack.pop().value();\n    var meta = constants.getTemplateMeta(_meta);\n    var outerSymbols = constants.getStringArray(_symbols);\n    var evalInfo = constants.getArray(_evalInfo);\n    var handle = vm.runtime.resolver.lookupPartial(name, meta);\n    var definition = vm.runtime.resolver.resolve(handle);\n    var {\n      symbolTable,\n      handle: vmHandle\n    } = definition.getPartial(vm.context);\n    {\n      var partialSymbols = symbolTable.symbols;\n      var outerScope = vm.scope();\n      var partialScope = vm.pushRootScope(partialSymbols.length);\n      var evalScope = outerScope.getEvalScope();\n      partialScope.bindEvalScope(evalScope);\n      partialScope.bindSelf(outerScope.getSelf());\n      var locals = Object.create(outerScope.getPartialMap());\n\n      for (var i = 0; i < evalInfo.length; i++) {\n        var slot = evalInfo[i];\n        var _name5 = outerSymbols[slot - 1];\n        var ref = outerScope.getSymbol(slot);\n        locals[_name5] = ref;\n      }\n\n      if (evalScope) {\n        for (var _i7 = 0; _i7 < partialSymbols.length; _i7++) {\n          var _name6 = partialSymbols[_i7];\n          var symbol$$1 = _i7 + 1;\n          var value = evalScope[_name6];\n          if (value !== undefined) partialScope.bind(symbol$$1, value);\n        }\n      }\n\n      partialScope.bindPartialMap(locals);\n      vm.pushFrame(); // sp += 2\n\n      vm.call((0, _util.unwrapHandle)(vmHandle));\n    }\n  }, 'jit');\n\n  class IterablePresenceReference {\n    constructor(artifacts) {\n      this.tag = artifacts.tag;\n      this.artifacts = artifacts;\n    }\n\n    value() {\n      return !this.artifacts.isEmpty();\n    }\n\n  }\n\n  APPEND_OPCODES.add(74\n  /* PutIterator */\n  , vm => {\n    var stack = vm.stack;\n    var listRef = stack.pop();\n    var key = stack.pop();\n    var iterable = vm.env.iterableFor(listRef, key.value());\n    var iterator = new _reference.ReferenceIterator(iterable);\n    stack.push(iterator);\n    stack.push(new IterablePresenceReference(iterator.artifacts));\n  });\n  APPEND_OPCODES.add(72\n  /* EnterList */\n  , (vm, {\n    op1: relativeStart\n  }) => {\n    vm.enterList(relativeStart);\n  });\n  APPEND_OPCODES.add(73\n  /* ExitList */\n  , vm => {\n    vm.exitList();\n  });\n  APPEND_OPCODES.add(75\n  /* Iterate */\n  , (vm, {\n    op1: breaks\n  }) => {\n    var stack = vm.stack;\n    var item = stack.peek().next();\n\n    if (item) {\n      var tryOpcode = vm.enterItem(item.memo, item.value);\n      vm.registerItem(item.key, tryOpcode);\n    } else {\n      vm.goto(breaks);\n    }\n  });\n  /** @internal */\n\n  var DEFAULT_CAPABILITIES = {\n    dynamicLayout: true,\n    dynamicTag: true,\n    prepareArgs: true,\n    createArgs: true,\n    attributeHook: false,\n    elementHook: false,\n    dynamicScope: true,\n    createCaller: false,\n    updateHook: true,\n    createInstance: true,\n    wrapped: false,\n    willDestroy: false\n  };\n  _exports.DEFAULT_CAPABILITIES = DEFAULT_CAPABILITIES;\n  var MINIMAL_CAPABILITIES = {\n    dynamicLayout: false,\n    dynamicTag: false,\n    prepareArgs: false,\n    createArgs: false,\n    attributeHook: false,\n    elementHook: false,\n    dynamicScope: false,\n    createCaller: false,\n    updateHook: false,\n    createInstance: false,\n    wrapped: false,\n    willDestroy: false\n  };\n  _exports.MINIMAL_CAPABILITIES = MINIMAL_CAPABILITIES;\n\n  class SimpleComponentManager {\n    getCapabilities(_state) {\n      return MINIMAL_CAPABILITIES;\n    }\n\n    prepareArgs(_state, _args) {\n      throw new Error(`Unimplemented prepareArgs in SimpleComponentManager`);\n    }\n\n    create(_env, _state, _args, _dynamicScope, _caller, _hasDefaultBlock) {\n      throw new Error(`Unimplemented create in SimpleComponentManager`);\n    }\n\n    getSelf(_state) {\n      return UNDEFINED_REFERENCE;\n    }\n\n    getTag(_state) {\n      throw new Error(`Unimplemented getTag in SimpleComponentManager`);\n    }\n\n    didRenderLayout(_state, _bounds) {\n      throw new Error(`Unimplemented didRenderLayout in SimpleComponentManager`);\n    }\n\n    didCreate(_state) {\n      throw new Error(`Unimplemented didCreate in SimpleComponentManager`);\n    }\n\n    update(_state, _dynamicScope) {\n      throw new Error(`Unimplemented update in SimpleComponentManager`);\n    }\n\n    didUpdateLayout(_state, _bounds) {\n      throw new Error(`Unimplemented didUpdateLayout in SimpleComponentManager`);\n    }\n\n    didUpdate(_state) {\n      throw new Error(`Unimplemented didUpdate in SimpleComponentManager`);\n    }\n\n    getDestructor(_state) {\n      return null;\n    }\n\n  }\n\n  _exports.SimpleComponentManager = SimpleComponentManager;\n  var TEMPLATE_ONLY_COMPONENT = {\n    state: null,\n    manager: new SimpleComponentManager()\n  };\n  _exports.TEMPLATE_ONLY_COMPONENT = TEMPLATE_ONLY_COMPONENT;\n\n  class DefaultDynamicScope {\n    constructor(bucket) {\n      if (bucket) {\n        this.bucket = (0, _util.assign)({}, bucket);\n      } else {\n        this.bucket = {};\n      }\n    }\n\n    get(key) {\n      return this.bucket[key];\n    }\n\n    set(key, reference) {\n      return this.bucket[key] = reference;\n    }\n\n    child() {\n      return new DefaultDynamicScope(this.bucket);\n    }\n\n  }\n\n  _exports.DefaultDynamicScope = DefaultDynamicScope;\n\n  class DynamicVarReference {\n    constructor(scope, nameRef) {\n      this.scope = scope;\n      this.nameRef = nameRef;\n      var varTag = this.varTag = (0, _validator.createUpdatableTag)();\n      this.tag = (0, _validator.combine)([nameRef.tag, varTag]);\n    }\n\n    value() {\n      return this.getVar().value();\n    }\n\n    get(key) {\n      return this.getVar().get(key);\n    }\n\n    getVar() {\n      var name = String(this.nameRef.value());\n      var ref = this.scope.get(name);\n      (0, _validator.updateTag)(this.varTag, ref.tag);\n      return ref;\n    }\n\n  }\n\n  function getDynamicVar(args, vm) {\n    var scope = vm.dynamicScope();\n    var nameRef = args.positional.at(0);\n    return new DynamicVarReference(scope, nameRef);\n  }\n  /*\n    The calling convention is:\n  \n    * 0-N block arguments at the bottom\n    * 0-N positional arguments next (left-to-right)\n    * 0-N named arguments next\n  */\n\n\n  class VMArgumentsImpl {\n    constructor() {\n      this.stack = null;\n      this.positional = new PositionalArgumentsImpl();\n      this.named = new NamedArgumentsImpl();\n      this.blocks = new BlockArgumentsImpl();\n    }\n\n    empty(stack) {\n      var base = stack[REGISTERS][_vm2.$sp] + 1;\n      this.named.empty(stack, base);\n      this.positional.empty(stack, base);\n      this.blocks.empty(stack, base);\n      return this;\n    }\n\n    setup(stack, names, blockNames, positionalCount, atNames) {\n      this.stack = stack;\n      /*\n             | ... | blocks      | positional  | named |\n             | ... | b0    b1    | p0 p1 p2 p3 | n0 n1 |\n       index | ... | 4/5/6 7/8/9 | 10 11 12 13 | 14 15 |\n                     ^             ^             ^  ^\n                   bbase         pbase       nbase  sp\n      */\n\n      var named = this.named;\n      var namedCount = names.length;\n      var namedBase = stack[REGISTERS][_vm2.$sp] - namedCount + 1;\n      named.setup(stack, namedBase, namedCount, names, atNames);\n      var positional = this.positional;\n      var positionalBase = namedBase - positionalCount;\n      positional.setup(stack, positionalBase, positionalCount);\n      var blocks = this.blocks;\n      var blocksCount = blockNames.length;\n      var blocksBase = positionalBase - blocksCount * 3;\n      blocks.setup(stack, blocksBase, blocksCount, blockNames);\n    }\n\n    get tag() {\n      return combineTagged([this.positional, this.named]);\n    }\n\n    get base() {\n      return this.blocks.base;\n    }\n\n    get length() {\n      return this.positional.length + this.named.length + this.blocks.length * 3;\n    }\n\n    at(pos) {\n      return this.positional.at(pos);\n    }\n\n    realloc(offset) {\n      var {\n        stack\n      } = this;\n\n      if (offset > 0 && stack !== null) {\n        var {\n          positional,\n          named\n        } = this;\n        var newBase = positional.base + offset;\n        var length = positional.length + named.length;\n\n        for (var i = length - 1; i >= 0; i--) {\n          stack.copy(i + positional.base, i + newBase);\n        }\n\n        positional.base += offset;\n        named.base += offset;\n        stack[REGISTERS][_vm2.$sp] += offset;\n      }\n    }\n\n    capture() {\n      var positional = this.positional.length === 0 ? EMPTY_POSITIONAL : this.positional.capture();\n      var named = this.named.length === 0 ? EMPTY_NAMED : this.named.capture();\n      return new CapturedArgumentsImpl(this.tag, positional, named, this.length);\n    }\n\n    clear() {\n      var {\n        stack,\n        length\n      } = this;\n      if (length > 0 && stack !== null) stack.pop(length);\n    }\n\n  }\n\n  class PositionalArgumentsImpl {\n    constructor() {\n      this.base = 0;\n      this.length = 0;\n      this.stack = null;\n      this._tag = null;\n      this._references = null;\n    }\n\n    empty(stack, base) {\n      this.stack = stack;\n      this.base = base;\n      this.length = 0;\n      this._tag = _validator.CONSTANT_TAG;\n      this._references = _util.EMPTY_ARRAY;\n    }\n\n    setup(stack, base, length) {\n      this.stack = stack;\n      this.base = base;\n      this.length = length;\n\n      if (length === 0) {\n        this._tag = _validator.CONSTANT_TAG;\n        this._references = _util.EMPTY_ARRAY;\n      } else {\n        this._tag = null;\n        this._references = null;\n      }\n    }\n\n    get tag() {\n      var tag = this._tag;\n\n      if (!tag) {\n        tag = this._tag = combineTagged(this.references);\n      }\n\n      return tag;\n    }\n\n    at(position) {\n      var {\n        base,\n        length,\n        stack\n      } = this;\n\n      if (position < 0 || position >= length) {\n        return UNDEFINED_REFERENCE;\n      }\n\n      return stack.get(position, base);\n    }\n\n    capture() {\n      return new CapturedPositionalArgumentsImpl(this.tag, this.references);\n    }\n\n    prepend(other) {\n      var additions = other.length;\n\n      if (additions > 0) {\n        var {\n          base,\n          length,\n          stack\n        } = this;\n        this.base = base = base - additions;\n        this.length = length + additions;\n\n        for (var i = 0; i < additions; i++) {\n          stack.set(other.at(i), i, base);\n        }\n\n        this._tag = null;\n        this._references = null;\n      }\n    }\n\n    get references() {\n      var references = this._references;\n\n      if (!references) {\n        var {\n          stack,\n          base,\n          length\n        } = this;\n        references = this._references = stack.sliceArray(base, base + length);\n      }\n\n      return references;\n    }\n\n  }\n\n  class CapturedPositionalArgumentsImpl {\n    constructor(tag, references, length = references.length) {\n      this.tag = tag;\n      this.references = references;\n      this.length = length;\n    }\n\n    static empty() {\n      return new CapturedPositionalArgumentsImpl(_validator.CONSTANT_TAG, _util.EMPTY_ARRAY, 0);\n    }\n\n    at(position) {\n      return this.references[position];\n    }\n\n    value() {\n      return this.references.map(this.valueOf);\n    }\n\n    get(name) {\n      var {\n        references,\n        length\n      } = this;\n\n      if (name === 'length') {\n        return PrimitiveReference.create(length);\n      } else {\n        var idx = parseInt(name, 10);\n\n        if (idx < 0 || idx >= length) {\n          return UNDEFINED_REFERENCE;\n        } else {\n          return references[idx];\n        }\n      }\n    }\n\n    valueOf(reference) {\n      return reference.value();\n    }\n\n  }\n\n  _exports.CapturedPositionalArgumentsImpl = CapturedPositionalArgumentsImpl;\n\n  class NamedArgumentsImpl {\n    constructor() {\n      this.base = 0;\n      this.length = 0;\n      this._references = null;\n      this._names = _util.EMPTY_ARRAY;\n      this._atNames = _util.EMPTY_ARRAY;\n    }\n\n    empty(stack, base) {\n      this.stack = stack;\n      this.base = base;\n      this.length = 0;\n      this._references = _util.EMPTY_ARRAY;\n      this._names = _util.EMPTY_ARRAY;\n      this._atNames = _util.EMPTY_ARRAY;\n    }\n\n    setup(stack, base, length, names, atNames) {\n      this.stack = stack;\n      this.base = base;\n      this.length = length;\n\n      if (length === 0) {\n        this._references = _util.EMPTY_ARRAY;\n        this._names = _util.EMPTY_ARRAY;\n        this._atNames = _util.EMPTY_ARRAY;\n      } else {\n        this._references = null;\n\n        if (atNames) {\n          this._names = null;\n          this._atNames = names;\n        } else {\n          this._names = names;\n          this._atNames = null;\n        }\n      }\n    }\n\n    get tag() {\n      return combineTagged(this.references);\n    }\n\n    get names() {\n      var names = this._names;\n\n      if (!names) {\n        names = this._names = this._atNames.map(this.toSyntheticName);\n      }\n\n      return names;\n    }\n\n    get atNames() {\n      var atNames = this._atNames;\n\n      if (!atNames) {\n        atNames = this._atNames = this._names.map(this.toAtName);\n      }\n\n      return atNames;\n    }\n\n    has(name) {\n      return this.names.indexOf(name) !== -1;\n    }\n\n    get(name, atNames = false) {\n      var {\n        base,\n        stack\n      } = this;\n      var names = atNames ? this.atNames : this.names;\n      var idx = names.indexOf(name);\n\n      if (idx === -1) {\n        return UNDEFINED_REFERENCE;\n      }\n\n      return stack.get(idx, base);\n    }\n\n    capture() {\n      return new CapturedNamedArgumentsImpl(this.tag, this.names, this.references);\n    }\n\n    merge(other) {\n      var {\n        length: extras\n      } = other;\n\n      if (extras > 0) {\n        var {\n          names,\n          length,\n          stack\n        } = this;\n        var {\n          names: extraNames\n        } = other;\n\n        if (Object.isFrozen(names) && names.length === 0) {\n          names = [];\n        }\n\n        for (var i = 0; i < extras; i++) {\n          var _name7 = extraNames[i];\n          var idx = names.indexOf(_name7);\n\n          if (idx === -1) {\n            length = names.push(_name7);\n            stack.push(other.references[i]);\n          }\n        }\n\n        this.length = length;\n        this._references = null;\n        this._names = names;\n        this._atNames = null;\n      }\n    }\n\n    get references() {\n      var references = this._references;\n\n      if (!references) {\n        var {\n          base,\n          length,\n          stack\n        } = this;\n        references = this._references = stack.sliceArray(base, base + length);\n      }\n\n      return references;\n    }\n\n    toSyntheticName(name) {\n      return name.slice(1);\n    }\n\n    toAtName(name) {\n      return `@${name}`;\n    }\n\n  }\n\n  class CapturedNamedArgumentsImpl {\n    constructor(tag, names, references) {\n      this.tag = tag;\n      this.names = names;\n      this.references = references;\n      this.length = names.length;\n      this._map = null;\n    }\n\n    get map() {\n      var map = this._map;\n\n      if (!map) {\n        var {\n          names,\n          references\n        } = this;\n        map = this._map = (0, _util.dict)();\n\n        for (var i = 0; i < names.length; i++) {\n          var _name8 = names[i];\n          map[_name8] = references[i];\n        }\n      }\n\n      return map;\n    }\n\n    has(name) {\n      return this.names.indexOf(name) !== -1;\n    }\n\n    get(name) {\n      var {\n        names,\n        references\n      } = this;\n      var idx = names.indexOf(name);\n\n      if (idx === -1) {\n        return UNDEFINED_REFERENCE;\n      } else {\n        return references[idx];\n      }\n    }\n\n    value() {\n      var {\n        names,\n        references\n      } = this;\n      var out = (0, _util.dict)();\n\n      for (var i = 0; i < names.length; i++) {\n        var _name9 = names[i];\n        out[_name9] = references[i].value();\n      }\n\n      return out;\n    }\n\n  }\n\n  _exports.CapturedNamedArgumentsImpl = CapturedNamedArgumentsImpl;\n\n  function toSymbolName(name) {\n    return `&${name}`;\n  }\n\n  class BlockArgumentsImpl {\n    constructor() {\n      this.internalValues = null;\n      this._symbolNames = null;\n      this.internalTag = null;\n      this.names = _util.EMPTY_ARRAY;\n      this.length = 0;\n      this.base = 0;\n    }\n\n    empty(stack, base) {\n      this.stack = stack;\n      this.names = _util.EMPTY_ARRAY;\n      this.base = base;\n      this.length = 0;\n      this._symbolNames = null;\n      this.internalTag = _validator.CONSTANT_TAG;\n      this.internalValues = _util.EMPTY_ARRAY;\n    }\n\n    setup(stack, base, length, names) {\n      this.stack = stack;\n      this.names = names;\n      this.base = base;\n      this.length = length;\n      this._symbolNames = null;\n\n      if (length === 0) {\n        this.internalTag = _validator.CONSTANT_TAG;\n        this.internalValues = _util.EMPTY_ARRAY;\n      } else {\n        this.internalTag = null;\n        this.internalValues = null;\n      }\n    }\n\n    get values() {\n      var values = this.internalValues;\n\n      if (!values) {\n        var {\n          base,\n          length,\n          stack\n        } = this;\n        values = this.internalValues = stack.sliceArray(base, base + length * 3);\n      }\n\n      return values;\n    }\n\n    has(name) {\n      return this.names.indexOf(name) !== -1;\n    }\n\n    get(name) {\n      var idx = this.names.indexOf(name);\n\n      if (idx === -1) {\n        return null;\n      }\n\n      var {\n        base,\n        stack\n      } = this;\n      var table = stack.get(idx * 3, base);\n      var scope = stack.get(idx * 3 + 1, base);\n      var handle = stack.get(idx * 3 + 2, base);\n      return handle === null ? null : [handle, scope, table];\n    }\n\n    capture() {\n      return new CapturedBlockArgumentsImpl(this.names, this.values);\n    }\n\n    get symbolNames() {\n      var symbolNames = this._symbolNames;\n\n      if (symbolNames === null) {\n        symbolNames = this._symbolNames = this.names.map(toSymbolName);\n      }\n\n      return symbolNames;\n    }\n\n  }\n\n  class CapturedBlockArgumentsImpl {\n    constructor(names, values) {\n      this.names = names;\n      this.values = values;\n      this.length = names.length;\n    }\n\n    has(name) {\n      return this.names.indexOf(name) !== -1;\n    }\n\n    get(name) {\n      var idx = this.names.indexOf(name);\n      if (idx === -1) return null;\n      return [this.values[idx * 3 + 2], this.values[idx * 3 + 1], this.values[idx * 3]];\n    }\n\n  }\n\n  class CapturedArgumentsImpl {\n    constructor(tag, positional, named, length) {\n      this.tag = tag;\n      this.positional = positional;\n      this.named = named;\n      this.length = length;\n    }\n\n    value() {\n      return {\n        named: this.named.value(),\n        positional: this.positional.value()\n      };\n    }\n\n  }\n\n  _exports.CapturedArgumentsImpl = CapturedArgumentsImpl;\n  var EMPTY_NAMED = new CapturedNamedArgumentsImpl(_validator.CONSTANT_TAG, _util.EMPTY_ARRAY, _util.EMPTY_ARRAY);\n  var EMPTY_POSITIONAL = new CapturedPositionalArgumentsImpl(_validator.CONSTANT_TAG, _util.EMPTY_ARRAY);\n  var EMPTY_ARGS = new CapturedArgumentsImpl(_validator.CONSTANT_TAG, EMPTY_POSITIONAL, EMPTY_NAMED, 0);\n  _exports.EMPTY_ARGS = EMPTY_ARGS;\n\n  function initializeRegistersWithSP(sp) {\n    return [0, -1, sp, 0];\n  }\n\n  class LowLevelVM {\n    constructor(stack, heap, program, externs, registers) {\n      this.stack = stack;\n      this.heap = heap;\n      this.program = program;\n      this.externs = externs;\n      this.registers = registers;\n      this.currentOpSize = 0;\n    }\n\n    fetchRegister(register) {\n      return this.registers[register];\n    }\n\n    loadRegister(register, value) {\n      this.registers[register] = value;\n    }\n\n    setPc(pc) {\n      this.registers[_vm2.$pc] = pc;\n    } // Start a new frame and save $ra and $fp on the stack\n\n\n    pushFrame() {\n      this.stack.push(this.registers[_vm2.$ra]);\n      this.stack.push(this.registers[_vm2.$fp]);\n      this.registers[_vm2.$fp] = this.registers[_vm2.$sp] - 1;\n    } // Restore $ra, $sp and $fp\n\n\n    popFrame() {\n      this.registers[_vm2.$sp] = this.registers[_vm2.$fp] - 1;\n      this.registers[_vm2.$ra] = this.stack.get(0);\n      this.registers[_vm2.$fp] = this.stack.get(1);\n    }\n\n    pushSmallFrame() {\n      this.stack.push(this.registers[_vm2.$ra]);\n    }\n\n    popSmallFrame() {\n      this.registers[_vm2.$ra] = this.stack.pop();\n    } // Jump to an address in `program`\n\n\n    goto(offset) {\n      this.setPc(this.target(offset));\n    }\n\n    target(offset) {\n      return this.registers[_vm2.$pc] + offset - this.currentOpSize;\n    } // Save $pc into $ra, then jump to a new address in `program` (jal in MIPS)\n\n\n    call(handle) {\n      this.registers[_vm2.$ra] = this.registers[_vm2.$pc];\n      this.setPc(this.heap.getaddr(handle));\n    } // Put a specific `program` address in $ra\n\n\n    returnTo(offset) {\n      this.registers[_vm2.$ra] = this.target(offset);\n    } // Return to the `program` address stored in $ra\n\n\n    return() {\n      this.setPc(this.registers[_vm2.$ra]);\n    }\n\n    nextStatement() {\n      var {\n        registers,\n        program\n      } = this;\n      var pc = registers[_vm2.$pc];\n\n      if (pc === -1) {\n        return null;\n      } // We have to save off the current operations size so that\n      // when we do a jump we can calculate the correct offset\n      // to where we are going. We can't simply ask for the size\n      // in a jump because we have have already incremented the\n      // program counter to the next instruction prior to executing.\n\n\n      var opcode = program.opcode(pc);\n      var operationSize = this.currentOpSize = opcode.size;\n      this.registers[_vm2.$pc] += operationSize;\n      return opcode;\n    }\n\n    evaluateOuter(opcode, vm) {\n      {\n        this.evaluateInner(opcode, vm);\n      }\n    }\n\n    evaluateInner(opcode, vm) {\n      if (opcode.isMachine) {\n        this.evaluateMachine(opcode);\n      } else {\n        this.evaluateSyscall(opcode, vm);\n      }\n    }\n\n    evaluateMachine(opcode) {\n      switch (opcode.type) {\n        case 0\n        /* PushFrame */\n        :\n          return this.pushFrame();\n\n        case 1\n        /* PopFrame */\n        :\n          return this.popFrame();\n\n        case 3\n        /* InvokeStatic */\n        :\n          return this.call(opcode.op1);\n\n        case 2\n        /* InvokeVirtual */\n        :\n          return this.call(this.stack.pop());\n\n        case 4\n        /* Jump */\n        :\n          return this.goto(opcode.op1);\n\n        case 5\n        /* Return */\n        :\n          return this.return();\n\n        case 6\n        /* ReturnTo */\n        :\n          return this.returnTo(opcode.op1);\n      }\n    }\n\n    evaluateSyscall(opcode, vm) {\n      APPEND_OPCODES.evaluate(vm, opcode, opcode.type);\n    }\n\n  }\n\n  class UpdatingVM {\n    constructor(env, {\n      alwaysRevalidate = false\n    }) {\n      this.frameStack = new _util.Stack();\n      this.env = env;\n      this.dom = env.getDOM();\n      this.alwaysRevalidate = alwaysRevalidate;\n    }\n\n    execute(opcodes, handler) {\n      var {\n        frameStack\n      } = this;\n      this.try(opcodes, handler);\n\n      while (true) {\n        if (frameStack.isEmpty()) break;\n        var opcode = this.frame.nextStatement();\n\n        if (opcode === null) {\n          frameStack.pop();\n          continue;\n        }\n\n        opcode.evaluate(this);\n      }\n    }\n\n    get frame() {\n      return this.frameStack.current;\n    }\n\n    goto(op) {\n      this.frame.goto(op);\n    }\n\n    try(ops, handler) {\n      this.frameStack.push(new UpdatingVMFrame(ops, handler));\n    }\n\n    throw() {\n      this.frame.handleException();\n      this.frameStack.pop();\n    }\n\n  }\n\n  _exports.UpdatingVM = UpdatingVM;\n\n  class ResumableVMStateImpl {\n    constructor(state, resumeCallback) {\n      this.state = state;\n      this.resumeCallback = resumeCallback;\n    }\n\n    resume(runtime, builder) {\n      return this.resumeCallback(runtime, this.state, builder);\n    }\n\n  }\n\n  class BlockOpcode extends UpdatingOpcode {\n    constructor(state, runtime, bounds, children) {\n      super();\n      this.state = state;\n      this.runtime = runtime;\n      this.type = 'block';\n      this.next = null;\n      this.prev = null;\n      this.children = children;\n      this.bounds = bounds;\n    }\n\n    parentElement() {\n      return this.bounds.parentElement();\n    }\n\n    firstNode() {\n      return this.bounds.firstNode();\n    }\n\n    lastNode() {\n      return this.bounds.lastNode();\n    }\n\n    evaluate(vm) {\n      vm.try(this.children, null);\n    }\n\n  }\n\n  class TryOpcode extends BlockOpcode {\n    constructor(state, runtime, bounds, children) {\n      super(state, runtime, bounds, children);\n      this.type = 'try';\n      this.tag = this._tag = (0, _validator.createUpdatableTag)();\n    }\n\n    didInitializeChildren() {\n      (0, _validator.updateTag)(this._tag, combineSlice(this.children));\n    }\n\n    evaluate(vm) {\n      vm.try(this.children, this);\n    }\n\n    handleException() {\n      var {\n        state,\n        bounds,\n        children,\n        prev,\n        next,\n        runtime\n      } = this;\n      legacySyncReset(this, runtime.env);\n      children.clear();\n      asyncReset(this, runtime.env);\n      var elementStack = NewElementBuilder.resume(runtime.env, bounds);\n      var vm = state.resume(runtime, elementStack);\n      var updating = new _util.LinkedList();\n      var result = vm.execute(vm => {\n        vm.pushUpdating(updating);\n        vm.updateWith(this);\n        vm.pushUpdating(children);\n      });\n      (0, _util.associate)(this, result.drop);\n      this.prev = prev;\n      this.next = next;\n    }\n\n  }\n\n  class ListRevalidationDelegate {\n    constructor(opcode, marker) {\n      this.opcode = opcode;\n      this.marker = marker;\n      this.didInsert = false;\n      this.didDelete = false;\n      this.map = opcode.map;\n      this.updating = opcode['children'];\n    }\n\n    insert(_env, key, item, memo, before) {\n      var {\n        map,\n        opcode,\n        updating\n      } = this;\n      var nextSibling = null;\n      var reference = null;\n      reference = map.get(before);\n      nextSibling = reference !== undefined ? reference['bounds'].firstNode() : this.marker;\n      var vm = opcode.vmForInsertion(nextSibling);\n      var tryOpcode = null;\n      var result = vm.execute(vm => {\n        vm.pushUpdating();\n        tryOpcode = vm.enterItem(memo, item);\n        map.set(key, tryOpcode);\n      });\n      updating.insertBefore(tryOpcode, reference);\n      (0, _util.associate)(opcode, result.drop);\n      this.didInsert = true;\n    }\n\n    retain(_env, _key, _item, _memo) {}\n\n    move(_env, key, _item, _memo, before) {\n      var {\n        map,\n        updating\n      } = this;\n      var entry = map.get(key);\n\n      if (before === _reference.END) {\n        move(entry, this.marker);\n        updating.remove(entry);\n        updating.append(entry);\n      } else {\n        var reference = map.get(before);\n        move(entry, reference.firstNode());\n        updating.remove(entry);\n        updating.insertBefore(entry, reference);\n      }\n    }\n\n    delete(env, key) {\n      var {\n        map,\n        updating\n      } = this;\n      var opcode = map.get(key);\n      detach(opcode, env);\n      updating.remove(opcode);\n      map.delete(key);\n      this.didDelete = true;\n    }\n\n    done() {\n      this.opcode.didInitializeChildren(this.didInsert || this.didDelete);\n    }\n\n  }\n\n  class ListBlockOpcode extends BlockOpcode {\n    constructor(state, runtime, bounds, children, artifacts) {\n      super(state, runtime, bounds, children);\n      this.type = 'list-block';\n      this.map = new Map();\n      this.lastIterated = _validator.INITIAL;\n      this.artifacts = artifacts;\n\n      var _tag = this._tag = (0, _validator.createUpdatableTag)();\n\n      this.tag = (0, _validator.combine)([artifacts.tag, _tag]);\n    }\n\n    didInitializeChildren(listDidChange = true) {\n      this.lastIterated = (0, _validator.valueForTag)(this.artifacts.tag);\n\n      if (listDidChange) {\n        (0, _validator.updateTag)(this._tag, combineSlice(this.children));\n      }\n    }\n\n    evaluate(vm) {\n      var {\n        artifacts,\n        lastIterated\n      } = this;\n\n      if (!(0, _validator.validateTag)(artifacts.tag, lastIterated)) {\n        var {\n          bounds\n        } = this;\n        var {\n          dom\n        } = vm;\n        var marker = dom.createComment('');\n        dom.insertAfter(bounds.parentElement(), marker, bounds.lastNode());\n        var target = new ListRevalidationDelegate(this, marker);\n        var synchronizer = new _reference.IteratorSynchronizer({\n          target,\n          artifacts,\n          env: vm.env\n        });\n        synchronizer.sync();\n        this.parentElement().removeChild(marker);\n      } // Run now-updated updating opcodes\n\n\n      super.evaluate(vm);\n    }\n\n    vmForInsertion(nextSibling) {\n      var {\n        bounds,\n        state,\n        runtime\n      } = this;\n      var elementStack = NewElementBuilder.forInitialRender(runtime.env, {\n        element: bounds.parentElement(),\n        nextSibling\n      });\n      return state.resume(runtime, elementStack);\n    }\n\n  }\n\n  class UpdatingVMFrame {\n    constructor(ops, exceptionHandler) {\n      this.ops = ops;\n      this.exceptionHandler = exceptionHandler;\n      this.current = ops.head();\n    }\n\n    goto(op) {\n      this.current = op;\n    }\n\n    nextStatement() {\n      var {\n        current,\n        ops\n      } = this;\n      if (current) this.current = ops.nextNode(current);\n      return current;\n    }\n\n    handleException() {\n      if (this.exceptionHandler) {\n        this.exceptionHandler.handleException();\n      }\n    }\n\n  }\n\n  class RenderResultImpl {\n    constructor(env, updating, bounds, drop) {\n      this.env = env;\n      this.updating = updating;\n      this.bounds = bounds;\n      this.drop = drop;\n      (0, _util.associate)(this, drop);\n    }\n\n    rerender({\n      alwaysRevalidate = false\n    } = {\n      alwaysRevalidate: false\n    }) {\n      var {\n        env,\n        updating\n      } = this;\n      var vm = new UpdatingVM(env, {\n        alwaysRevalidate\n      });\n      vm.execute(updating, this);\n    }\n\n    parentElement() {\n      return this.bounds.parentElement();\n    }\n\n    firstNode() {\n      return this.bounds.firstNode();\n    }\n\n    lastNode() {\n      return this.bounds.lastNode();\n    }\n\n    handleException() {\n      throw 'this should never happen';\n    }\n\n    [_util.DESTROY]() {\n      clear(this.bounds);\n    } // compat, as this is a user-exposed API\n\n\n    destroy() {\n      inTransaction(this.env, () => {\n        legacySyncDestroy(this, this.env);\n        asyncDestroy(this, this.env);\n      });\n    }\n\n  }\n\n  class InnerStack {\n    constructor(inner = new _lowLevel.Stack(), js = []) {\n      this.inner = inner;\n      this.js = js;\n    }\n\n    slice(start, end) {\n      var inner;\n\n      if (typeof start === 'number' && typeof end === 'number') {\n        inner = this.inner.slice(start, end);\n      } else if (typeof start === 'number' && end === undefined) {\n        inner = this.inner.sliceFrom(start);\n      } else {\n        inner = this.inner.clone();\n      }\n\n      return new InnerStack(inner, this.js.slice(start, end));\n    }\n\n    sliceInner(start, end) {\n      var out = [];\n\n      if (start === -1) {\n        return out;\n      }\n\n      for (var i = start; i < end; i++) {\n        out.push(this.get(i));\n      }\n\n      return out;\n    }\n\n    copy(from, to) {\n      this.inner.copy(from, to);\n    }\n\n    write(pos, value) {\n      switch (typeof value) {\n        case 'boolean':\n        case 'undefined':\n          this.writeRaw(pos, (0, _util.encodeImmediate)(value));\n          break;\n\n        case 'number':\n          if ((0, _util.isSmallInt)(value)) {\n            this.writeRaw(pos, (0, _util.encodeImmediate)(value));\n            break;\n          }\n\n        case 'object':\n          if (value === null) {\n            this.writeRaw(pos, (0, _util.encodeImmediate)(value));\n            break;\n          }\n\n        default:\n          this.writeJs(pos, value);\n      }\n    }\n\n    writeJs(pos, value) {\n      var idx = this.js.length;\n      this.js.push(value);\n      this.inner.writeRaw(pos, (0, _util.encodeHandle)(idx));\n    }\n\n    writeRaw(pos, value) {\n      this.inner.writeRaw(pos, value);\n    }\n\n    get(pos) {\n      var value = this.inner.getRaw(pos);\n\n      if ((0, _util.isHandle)(value)) {\n        return this.js[(0, _util.decodeHandle)(value)];\n      } else {\n        return (0, _util.decodeImmediate)(value);\n      }\n    }\n\n    reset() {\n      this.inner.reset();\n      this.js.length = 0;\n    }\n\n    get length() {\n      return this.inner.len();\n    }\n\n  }\n\n  class EvaluationStackImpl {\n    // fp -> sp\n    constructor(stack, registers) {\n      this.stack = stack;\n      this[REGISTERS] = registers;\n    }\n\n    static restore(snapshot$$1) {\n      var stack = new InnerStack();\n\n      for (var i = 0; i < snapshot$$1.length; i++) {\n        stack.write(i, snapshot$$1[i]);\n      }\n\n      return new this(stack, initializeRegistersWithSP(snapshot$$1.length - 1));\n    }\n\n    push(value) {\n      this.stack.write(++this[REGISTERS][_vm2.$sp], value);\n    }\n\n    pushJs(value) {\n      this.stack.writeJs(++this[REGISTERS][_vm2.$sp], value);\n    }\n\n    pushRaw(value) {\n      this.stack.writeRaw(++this[REGISTERS][_vm2.$sp], value);\n    }\n\n    dup(position = this[REGISTERS][_vm2.$sp]) {\n      this.stack.copy(position, ++this[REGISTERS][_vm2.$sp]);\n    }\n\n    copy(from, to) {\n      this.stack.copy(from, to);\n    }\n\n    pop(n = 1) {\n      var top = this.stack.get(this[REGISTERS][_vm2.$sp]);\n      this[REGISTERS][_vm2.$sp] -= n;\n      return top;\n    }\n\n    peek(offset = 0) {\n      return this.stack.get(this[REGISTERS][_vm2.$sp] - offset);\n    }\n\n    get(offset, base = this[REGISTERS][_vm2.$fp]) {\n      return this.stack.get(base + offset);\n    }\n\n    set(value, offset, base = this[REGISTERS][_vm2.$fp]) {\n      this.stack.write(base + offset, value);\n    }\n\n    slice(start, end) {\n      return this.stack.slice(start, end);\n    }\n\n    sliceArray(start, end) {\n      return this.stack.sliceInner(start, end);\n    }\n\n    capture(items) {\n      var end = this[REGISTERS][_vm2.$sp] + 1;\n      var start = end - items;\n      return this.stack.sliceInner(start, end);\n    }\n\n    reset() {\n      this.stack.reset();\n    }\n\n    toArray() {\n      console.log(this[REGISTERS]);\n      return this.stack.sliceInner(this[REGISTERS][_vm2.$fp], this[REGISTERS][_vm2.$sp] + 1);\n    }\n\n  }\n\n  var _a$3, _b;\n\n  class Stacks {\n    constructor() {\n      this.scope = new _util.Stack();\n      this.dynamicScope = new _util.Stack();\n      this.updating = new _util.Stack();\n      this.cache = new _util.Stack();\n      this.list = new _util.Stack();\n    }\n\n  }\n\n  class VM {\n    /**\n     * End of migrated.\n     */\n    constructor(runtime, {\n      pc,\n      scope,\n      dynamicScope,\n      stack\n    }, elementStack) {\n      this.runtime = runtime;\n      this.elementStack = elementStack;\n      this[_a$3] = new Stacks();\n      this[_b] = new _util.Stack();\n      this.s0 = null;\n      this.s1 = null;\n      this.t0 = null;\n      this.t1 = null;\n      this.v0 = null;\n      var evalStack = EvaluationStackImpl.restore(stack);\n      evalStack[REGISTERS][_vm2.$pc] = pc;\n      evalStack[REGISTERS][_vm2.$sp] = stack.length - 1;\n      evalStack[REGISTERS][_vm2.$fp] = -1;\n      this[HEAP] = this.program.heap;\n      this[CONSTANTS] = this.program.constants;\n      this.elementStack = elementStack;\n      this[STACKS].scope.push(scope);\n      this[STACKS].dynamicScope.push(dynamicScope);\n      this[ARGS] = new VMArgumentsImpl();\n      this[INNER_VM] = new LowLevelVM(evalStack, this[HEAP], runtime.program, {\n        debugBefore: opcode => {\n          return APPEND_OPCODES.debugBefore(this, opcode);\n        },\n        debugAfter: state => {\n          APPEND_OPCODES.debugAfter(this, state);\n        }\n      }, evalStack[REGISTERS]);\n      this.destructor = {};\n      this[DESTRUCTOR_STACK].push(this.destructor);\n    }\n\n    get stack() {\n      return this[INNER_VM].stack;\n    }\n    /* Registers */\n\n\n    get pc() {\n      return this[INNER_VM].fetchRegister(_vm2.$pc);\n    } // Fetch a value from a register onto the stack\n\n\n    fetch(register) {\n      this.stack.push(this.fetchValue(register));\n    } // Load a value from the stack into a register\n\n\n    load(register) {\n      var value = this.stack.pop();\n      this.loadValue(register, value);\n    }\n\n    fetchValue(register) {\n      if ((0, _vm2.isLowLevelRegister)(register)) {\n        return this[INNER_VM].fetchRegister(register);\n      }\n\n      switch (register) {\n        case _vm2.$s0:\n          return this.s0;\n\n        case _vm2.$s1:\n          return this.s1;\n\n        case _vm2.$t0:\n          return this.t0;\n\n        case _vm2.$t1:\n          return this.t1;\n\n        case _vm2.$v0:\n          return this.v0;\n      }\n    } // Load a value into a register\n\n\n    loadValue(register, value) {\n      if ((0, _vm2.isLowLevelRegister)(register)) {\n        this[INNER_VM].loadRegister(register, value);\n      }\n\n      switch (register) {\n        case _vm2.$s0:\n          this.s0 = value;\n          break;\n\n        case _vm2.$s1:\n          this.s1 = value;\n          break;\n\n        case _vm2.$t0:\n          this.t0 = value;\n          break;\n\n        case _vm2.$t1:\n          this.t1 = value;\n          break;\n\n        case _vm2.$v0:\n          this.v0 = value;\n          break;\n      }\n    }\n    /**\n     * Migrated to Inner\n     */\n    // Start a new frame and save $ra and $fp on the stack\n\n\n    pushFrame() {\n      this[INNER_VM].pushFrame();\n    } // Restore $ra, $sp and $fp\n\n\n    popFrame() {\n      this[INNER_VM].popFrame();\n    } // Jump to an address in `program`\n\n\n    goto(offset) {\n      this[INNER_VM].goto(offset);\n    } // Save $pc into $ra, then jump to a new address in `program` (jal in MIPS)\n\n\n    call(handle) {\n      this[INNER_VM].call(handle);\n    } // Put a specific `program` address in $ra\n\n\n    returnTo(offset) {\n      this[INNER_VM].returnTo(offset);\n    } // Return to the `program` address stored in $ra\n\n\n    return() {\n      this[INNER_VM].return();\n    }\n\n    get program() {\n      return this.runtime.program;\n    }\n\n    get env() {\n      return this.runtime.env;\n    }\n\n    captureState(args, pc = this[INNER_VM].fetchRegister(_vm2.$pc)) {\n      return {\n        pc,\n        dynamicScope: this.dynamicScope(),\n        scope: this.scope(),\n        stack: this.stack.capture(args)\n      };\n    }\n\n    beginCacheGroup() {\n      this[STACKS].cache.push(this.updating().tail());\n    }\n\n    commitCacheGroup() {\n      var END$$1 = new LabelOpcode('END');\n      var opcodes = this.updating();\n      var marker = this[STACKS].cache.pop();\n      var head = marker ? opcodes.nextNode(marker) : opcodes.head();\n      var tail = opcodes.tail();\n      var tag = combineSlice(new _util.ListSlice(head, tail));\n      var guard = new JumpIfNotModifiedOpcode(tag, END$$1);\n      opcodes.insertBefore(guard, head);\n      opcodes.append(new DidModifyOpcode(guard));\n      opcodes.append(END$$1);\n    }\n\n    enter(args) {\n      var updating = new _util.LinkedList();\n      var state = this.capture(args);\n      var block = this.elements().pushUpdatableBlock();\n      var tryOpcode = new TryOpcode(state, this.runtime, block, updating);\n      this.didEnter(tryOpcode);\n    }\n\n    enterItem(memo, value) {\n      var stack = this.stack;\n      stack.push(value);\n      stack.push(memo);\n      var state = this.capture(2);\n      var block = this.elements().pushUpdatableBlock(); // let ip = this.ip;\n      // this.ip = end + 4;\n      // this.frames.push(ip);\n\n      var opcode = new TryOpcode(state, this.runtime, block, new _util.LinkedList());\n      this.didEnter(opcode);\n      return opcode;\n    }\n\n    registerItem(key, opcode) {\n      this.listBlock().map.set(key, opcode);\n    }\n\n    enterList(offset) {\n      var updating = new _util.LinkedList();\n      var addr = this[INNER_VM].target(offset);\n      var state = this.capture(0, addr);\n      var list = this.elements().pushBlockList(updating);\n      var artifacts = this.stack.peek().artifacts;\n      var opcode = new ListBlockOpcode(state, this.runtime, list, updating, artifacts);\n      this[STACKS].list.push(opcode);\n      this.didEnter(opcode);\n    }\n\n    didEnter(opcode) {\n      this.associateDestructor((0, _util.destructor)(opcode));\n      this[DESTRUCTOR_STACK].push(opcode);\n      this.updateWith(opcode);\n      this.pushUpdating(opcode.children);\n    }\n\n    exit() {\n      this[DESTRUCTOR_STACK].pop();\n      this.elements().popBlock();\n      this.popUpdating();\n      var parent = this.updating().tail();\n      parent.didInitializeChildren();\n    }\n\n    exitList() {\n      this.exit();\n      this[STACKS].list.pop();\n    }\n\n    pushUpdating(list = new _util.LinkedList()) {\n      this[STACKS].updating.push(list);\n    }\n\n    popUpdating() {\n      return this[STACKS].updating.pop();\n    }\n\n    updateWith(opcode) {\n      this.updating().append(opcode);\n    }\n\n    listBlock() {\n      return this[STACKS].list.current;\n    }\n\n    associateDestructor(child) {\n      if (!(0, _util.isDrop)(child)) return;\n      var parent = this[DESTRUCTOR_STACK].current;\n      (0, _util.associateDestructor)(parent, child);\n    }\n\n    associateDestroyable(child) {\n      this.associateDestructor((0, _util.destructor)(child));\n    }\n\n    tryUpdating() {\n      return this[STACKS].updating.current;\n    }\n\n    updating() {\n      return this[STACKS].updating.current;\n    }\n\n    elements() {\n      return this.elementStack;\n    }\n\n    scope() {\n      return this[STACKS].scope.current;\n    }\n\n    dynamicScope() {\n      return this[STACKS].dynamicScope.current;\n    }\n\n    pushChildScope() {\n      this[STACKS].scope.push(this.scope().child());\n    }\n\n    pushDynamicScope() {\n      var child = this.dynamicScope().child();\n      this[STACKS].dynamicScope.push(child);\n      return child;\n    }\n\n    pushRootScope(size) {\n      var scope = ScopeImpl.sized(size);\n      this[STACKS].scope.push(scope);\n      return scope;\n    }\n\n    pushScope(scope) {\n      this[STACKS].scope.push(scope);\n    }\n\n    popScope() {\n      this[STACKS].scope.pop();\n    }\n\n    popDynamicScope() {\n      this[STACKS].dynamicScope.pop();\n    } /// SCOPE HELPERS\n\n\n    getSelf() {\n      return this.scope().getSelf();\n    }\n\n    referenceForSymbol(symbol$$1) {\n      return this.scope().getSymbol(symbol$$1);\n    } /// EXECUTION\n\n\n    execute(initialize) {\n      if (initialize) initialize(this);\n      var result;\n\n      try {\n        while (true) {\n          result = this.next();\n          if (result.done) break;\n        }\n      } finally {\n        // If any existing blocks are open, due to an error or something like\n        // that, we need to close them all and clean things up properly.\n        var elements = this.elements();\n\n        while (elements.hasBlocks) {\n          elements.popBlock();\n        }\n      }\n\n      return result.value;\n    }\n\n    next() {\n      var {\n        env,\n        elementStack\n      } = this;\n      var opcode = this[INNER_VM].nextStatement();\n      var result;\n\n      if (opcode !== null) {\n        this[INNER_VM].evaluateOuter(opcode, this);\n        result = {\n          done: false,\n          value: null\n        };\n      } else {\n        // Unload the stack\n        this.stack.reset();\n        result = {\n          done: true,\n          value: new RenderResultImpl(env, this.popUpdating(), elementStack.popBlock(), this.destructor)\n        };\n      }\n\n      return result;\n    }\n\n    bindDynamicScope(names) {\n      var scope = this.dynamicScope();\n\n      for (var i = names.length - 1; i >= 0; i--) {\n        var _name10 = this[CONSTANTS].getString(names[i]);\n\n        scope.set(_name10, this.stack.pop());\n      }\n    }\n\n  }\n\n  _exports.LowLevelVM = VM;\n  _a$3 = STACKS, _b = DESTRUCTOR_STACK;\n\n  function vmState(pc, scope = ScopeImpl.root(UNDEFINED_REFERENCE, 0), dynamicScope) {\n    return {\n      pc,\n      scope,\n      dynamicScope,\n      stack: []\n    };\n  }\n\n  class AotVM extends VM {\n    static empty(runtime, {\n      handle,\n      treeBuilder,\n      dynamicScope\n    }) {\n      var vm = initAOT(runtime, vmState(runtime.program.heap.getaddr(handle), ScopeImpl.root(UNDEFINED_REFERENCE, 0), dynamicScope), treeBuilder);\n      vm.pushUpdating();\n      return vm;\n    }\n\n    static initial(runtime, {\n      handle,\n      self,\n      treeBuilder,\n      dynamicScope\n    }) {\n      var scopeSize = runtime.program.heap.scopesizeof(handle);\n      var scope = ScopeImpl.root(self, scopeSize);\n      var pc = runtime.program.heap.getaddr(handle);\n      var state = vmState(pc, scope, dynamicScope);\n      var vm = initAOT(runtime, state, treeBuilder);\n      vm.pushUpdating();\n      return vm;\n    }\n\n    capture(args, pc = this[INNER_VM].fetchRegister(_vm2.$pc)) {\n      return new ResumableVMStateImpl(this.captureState(args, pc), initAOT);\n    }\n\n  }\n\n  function initAOT(runtime, state, builder) {\n    return new AotVM(runtime, state, builder);\n  }\n\n  function initJIT(context) {\n    return (runtime, state, builder) => new JitVM(runtime, state, builder, context);\n  }\n\n  class JitVM extends VM {\n    constructor(runtime, state, elementStack, context) {\n      super(runtime, state, elementStack);\n      this.context = context;\n      this.resume = initJIT(this.context);\n    }\n\n    static initial(runtime, context, {\n      handle,\n      self,\n      dynamicScope,\n      treeBuilder\n    }) {\n      var scopeSize = runtime.program.heap.scopesizeof(handle);\n      var scope = ScopeImpl.root(self, scopeSize);\n      var state = vmState(runtime.program.heap.getaddr(handle), scope, dynamicScope);\n      var vm = initJIT(context)(runtime, state, treeBuilder);\n      vm.pushUpdating();\n      return vm;\n    }\n\n    static empty(runtime, {\n      handle,\n      treeBuilder,\n      dynamicScope\n    }, context) {\n      var vm = initJIT(context)(runtime, vmState(runtime.program.heap.getaddr(handle), ScopeImpl.root(UNDEFINED_REFERENCE, 0), dynamicScope), treeBuilder);\n      vm.pushUpdating();\n      return vm;\n    }\n\n    capture(args, pc = this[INNER_VM].fetchRegister(_vm2.$pc)) {\n      return new ResumableVMStateImpl(this.captureState(args, pc), this.resume);\n    }\n\n    compile(block) {\n      var handle = (0, _util.unwrapHandle)(block.compile(this.context));\n      return handle;\n    }\n\n  }\n\n  class TemplateIteratorImpl {\n    constructor(vm) {\n      this.vm = vm;\n    }\n\n    next() {\n      return this.vm.next();\n    }\n\n    sync() {\n      return renderSync(this.vm.runtime.env, this);\n    }\n\n  }\n\n  function renderSync(env, iterator) {\n    env.begin();\n    var iteratorResult;\n\n    do {\n      iteratorResult = iterator.next();\n    } while (!iteratorResult.done);\n\n    var result = iteratorResult.value;\n    env.commit();\n    return result;\n  }\n\n  function renderAotMain(runtime, self, treeBuilder, handle, dynamicScope = new DefaultDynamicScope()) {\n    var vm = AotVM.initial(runtime, {\n      self,\n      dynamicScope,\n      treeBuilder,\n      handle\n    });\n    return new TemplateIteratorImpl(vm);\n  }\n\n  function renderAot(runtime, handle, cursor, self = UNDEFINED_REFERENCE) {\n    var treeBuilder = NewElementBuilder.forInitialRender(runtime.env, cursor);\n    var dynamicScope = new DefaultDynamicScope();\n    var vm = AotVM.initial(runtime, {\n      self,\n      dynamicScope,\n      treeBuilder,\n      handle\n    });\n    return new TemplateIteratorImpl(vm);\n  }\n\n  function renderJitMain(runtime, context, self, treeBuilder, handle, dynamicScope = new DefaultDynamicScope()) {\n    var vm = JitVM.initial(runtime, context, {\n      self,\n      dynamicScope,\n      treeBuilder,\n      handle\n    });\n    return new TemplateIteratorImpl(vm);\n  }\n\n  function renderInvocation(vm, invocation, definition, args) {\n    // Get a list of tuples of argument names and references, like\n    // [['title', reference], ['name', reference]]\n    var argList = Object.keys(args).map(key => [key, args[key]]);\n    var blockNames = ['main', 'else', 'attrs']; // Prefix argument names with `@` symbol\n\n    var argNames = argList.map(([name]) => `@${name}`);\n    vm.pushFrame(); // Push blocks on to the stack, three stack values per block\n\n    for (var i = 0; i < 3 * blockNames.length; i++) {\n      vm.stack.push(null);\n    }\n\n    vm.stack.push(null); // For each argument, push its backing reference on to the stack\n\n    argList.forEach(([, reference]) => {\n      vm.stack.push(reference);\n    }); // Configure VM based on blocks and args just pushed on to the stack.\n\n    vm[ARGS].setup(vm.stack, argNames, blockNames, 0, true); // Needed for the Op.Main opcode: arguments, component invocation object, and\n    // component definition.\n\n    vm.stack.push(vm[ARGS]);\n    vm.stack.push(invocation);\n    vm.stack.push(definition);\n    return new TemplateIteratorImpl(vm);\n  }\n\n  function renderAotComponent(runtime, treeBuilder, main, name, args = {}, dynamicScope = new DefaultDynamicScope()) {\n    var vm = AotVM.empty(runtime, {\n      treeBuilder,\n      handle: main,\n      dynamicScope\n    });\n    var definition = resolveComponent(vm.runtime.resolver, name);\n    var {\n      manager,\n      state\n    } = definition;\n    var capabilities = capabilityFlagsFrom(manager.getCapabilities(state));\n    var invocation;\n\n    if (hasStaticLayoutCapability(capabilities, manager)) {\n      invocation = manager.getAotStaticLayout(state, vm.runtime.resolver);\n    } else {\n      throw new Error('Cannot invoke components with dynamic layouts as a root component.');\n    }\n\n    return renderInvocation(vm, invocation, definition, args);\n  }\n\n  function renderJitComponent(runtime, treeBuilder, context, main, name, args = {}, dynamicScope = new DefaultDynamicScope()) {\n    var vm = JitVM.empty(runtime, {\n      treeBuilder,\n      handle: main,\n      dynamicScope\n    }, context);\n    var definition = resolveComponent(vm.runtime.resolver, name);\n    var {\n      manager,\n      state\n    } = definition;\n    var capabilities = capabilityFlagsFrom(manager.getCapabilities(state));\n    var invocation;\n\n    if (hasStaticLayoutCapability(capabilities, manager)) {\n      var layout = manager.getJitStaticLayout(state, vm.runtime.resolver);\n      var handle = (0, _util.unwrapHandle)(layout.compile(context));\n\n      if (Array.isArray(handle)) {\n        var error = handle[0];\n        throw new Error(`Compile Error: ${error.problem} ${error.span.start}..${error.span.end} :: TODO (thread better)`);\n      }\n\n      invocation = {\n        handle,\n        symbolTable: layout.symbolTable\n      };\n    } else {\n      throw new Error('Cannot invoke components with dynamic layouts as a root component.');\n    }\n\n    return renderInvocation(vm, invocation, definition, args);\n  }\n\n  var SERIALIZATION_FIRST_NODE_STRING = '%+b:0%';\n  _exports.SERIALIZATION_FIRST_NODE_STRING = SERIALIZATION_FIRST_NODE_STRING;\n\n  function isSerializationFirstNode(node) {\n    return node.nodeValue === SERIALIZATION_FIRST_NODE_STRING;\n  }\n\n  class RehydratingCursor extends CursorImpl {\n    constructor(element, nextSibling, startingBlockDepth) {\n      super(element, nextSibling);\n      this.startingBlockDepth = startingBlockDepth;\n      this.candidate = null;\n      this.injectedOmittedNode = false;\n      this.openBlockDepth = startingBlockDepth - 1;\n    }\n\n  }\n\n  class RehydrateBuilder extends NewElementBuilder {\n    constructor(env, parentNode, nextSibling) {\n      super(env, parentNode, nextSibling);\n      this.unmatchedAttributes = null;\n      this.blockDepth = 0;\n      if (nextSibling) throw new Error('Rehydration with nextSibling not supported');\n      var node = this.currentCursor.element.firstChild;\n\n      while (node !== null) {\n        if (isComment(node) && isSerializationFirstNode(node)) {\n          break;\n        }\n\n        node = node.nextSibling;\n      }\n\n      this.candidate = node;\n    }\n\n    get currentCursor() {\n      return this[CURSOR_STACK].current;\n    }\n\n    get candidate() {\n      if (this.currentCursor) {\n        return this.currentCursor.candidate;\n      }\n\n      return null;\n    }\n\n    set candidate(node) {\n      var currentCursor = this.currentCursor;\n      currentCursor.candidate = node;\n    }\n\n    disableRehydration(nextSibling) {\n      var currentCursor = this.currentCursor; // rehydration will be disabled until we either:\n      // * hit popElement (and return to using the parent elements cursor)\n      // * hit closeBlock and the next sibling is a close block comment\n      //   matching the expected openBlockDepth\n\n      currentCursor.candidate = null;\n      currentCursor.nextSibling = nextSibling;\n    }\n\n    enableRehydration(candidate) {\n      var currentCursor = this.currentCursor;\n      currentCursor.candidate = candidate;\n      currentCursor.nextSibling = null;\n    }\n\n    pushElement(element, nextSibling = null) {\n      var cursor = new RehydratingCursor(element, nextSibling, this.blockDepth || 0);\n      /**\n       * <div>   <---------------  currentCursor.element\n       *   <!--%+b:1%--> <-------  would have been removed during openBlock\n       *   <div> <---------------  currentCursor.candidate -> cursor.element\n       *     <!--%+b:2%--> <-----  currentCursor.candidate.firstChild -> cursor.candidate\n       *     Foo\n       *     <!--%-b:2%-->\n       *   </div>\n       *   <!--%-b:1%-->  <------  becomes currentCursor.candidate\n       */\n\n      if (this.candidate !== null) {\n        cursor.candidate = element.firstChild;\n        this.candidate = element.nextSibling;\n      }\n\n      this[CURSOR_STACK].push(cursor);\n    } // clears until the end of the current container\n    // either the current open block or higher\n\n\n    clearMismatch(candidate) {\n      var current = candidate;\n      var currentCursor = this.currentCursor;\n\n      if (currentCursor !== null) {\n        var openBlockDepth = currentCursor.openBlockDepth;\n\n        if (openBlockDepth >= currentCursor.startingBlockDepth) {\n          while (current) {\n            if (isCloseBlock(current)) {\n              var closeBlockDepth = getBlockDepth(current);\n\n              if (openBlockDepth >= closeBlockDepth) {\n                break;\n              }\n            }\n\n            current = this.remove(current);\n          }\n        } else {\n          while (current !== null) {\n            current = this.remove(current);\n          }\n        } // current cursor parentNode should be openCandidate if element\n        // or openCandidate.parentNode if comment\n\n\n        this.disableRehydration(current);\n      }\n    }\n\n    __openBlock() {\n      var {\n        currentCursor\n      } = this;\n      if (currentCursor === null) return;\n      var blockDepth = this.blockDepth;\n      this.blockDepth++;\n      var {\n        candidate\n      } = currentCursor;\n      if (candidate === null) return;\n      var {\n        tagName\n      } = currentCursor.element;\n\n      if (isOpenBlock(candidate) && getBlockDepth(candidate) === blockDepth) {\n        this.candidate = this.remove(candidate);\n        currentCursor.openBlockDepth = blockDepth;\n      } else if (tagName !== 'TITLE' && tagName !== 'SCRIPT' && tagName !== 'STYLE') {\n        this.clearMismatch(candidate);\n      }\n    }\n\n    __closeBlock() {\n      var {\n        currentCursor\n      } = this;\n      if (currentCursor === null) return; // openBlock is the last rehydrated open block\n\n      var openBlockDepth = currentCursor.openBlockDepth; // this currently is the expected next open block depth\n\n      this.blockDepth--;\n      var {\n        candidate\n      } = currentCursor;\n      var isRehydrating = false;\n\n      if (candidate !== null) {\n        isRehydrating = true; //assert(\n        //  openBlockDepth === this.blockDepth,\n        //  'when rehydrating, openBlockDepth should match this.blockDepth here'\n        //);\n\n        if (isCloseBlock(candidate) && getBlockDepth(candidate) === openBlockDepth) {\n          var nextSibling = this.remove(candidate);\n          this.candidate = nextSibling;\n          currentCursor.openBlockDepth--;\n        } else {\n          // close the block and clear mismatch in parent container\n          // we will be either at the end of the element\n          // or at the end of our containing block\n          this.clearMismatch(candidate);\n          isRehydrating = false;\n        }\n      }\n\n      if (isRehydrating === false) {\n        // check if nextSibling matches our expected close block\n        // if so, we remove the close block comment and\n        // restore rehydration after clearMismatch disabled\n        var _nextSibling = currentCursor.nextSibling;\n\n        if (_nextSibling !== null && isCloseBlock(_nextSibling) && getBlockDepth(_nextSibling) === this.blockDepth) {\n          // restore rehydration state\n          var _candidate2 = this.remove(_nextSibling);\n\n          this.enableRehydration(_candidate2);\n          currentCursor.openBlockDepth--;\n        }\n      }\n    }\n\n    __appendNode(node) {\n      var {\n        candidate\n      } = this; // This code path is only used when inserting precisely one node. It needs more\n      // comparison logic, but we can probably lean on the cases where this code path\n      // is actually used.\n\n      if (candidate) {\n        return candidate;\n      } else {\n        return super.__appendNode(node);\n      }\n    }\n\n    __appendHTML(html) {\n      var candidateBounds = this.markerBounds();\n\n      if (candidateBounds) {\n        var first = candidateBounds.firstNode();\n        var last = candidateBounds.lastNode();\n        var newBounds = new ConcreteBounds(this.element, first.nextSibling, last.previousSibling);\n        var possibleEmptyMarker = this.remove(first);\n        this.remove(last);\n\n        if (possibleEmptyMarker !== null && isEmpty$1(possibleEmptyMarker)) {\n          this.candidate = this.remove(possibleEmptyMarker);\n\n          if (this.candidate !== null) {\n            this.clearMismatch(this.candidate);\n          }\n        }\n\n        return newBounds;\n      } else {\n        return super.__appendHTML(html);\n      }\n    }\n\n    remove(node) {\n      var element = node.parentNode;\n      var next = node.nextSibling;\n      element.removeChild(node);\n      return next;\n    }\n\n    markerBounds() {\n      var _candidate = this.candidate;\n\n      if (_candidate && isMarker(_candidate)) {\n        var first = _candidate;\n        var last = first.nextSibling;\n\n        while (last && !isMarker(last)) {\n          last = last.nextSibling;\n        }\n\n        return new ConcreteBounds(this.element, first, last);\n      } else {\n        return null;\n      }\n    }\n\n    __appendText(string) {\n      var {\n        candidate\n      } = this;\n\n      if (candidate) {\n        if (isTextNode(candidate)) {\n          if (candidate.nodeValue !== string) {\n            candidate.nodeValue = string;\n          }\n\n          this.candidate = candidate.nextSibling;\n          return candidate;\n        } else if (isSeparator(candidate)) {\n          this.candidate = this.remove(candidate);\n          return this.__appendText(string);\n        } else if (isEmpty$1(candidate) && string === '') {\n          this.candidate = this.remove(candidate);\n          return this.__appendText(string);\n        } else {\n          this.clearMismatch(candidate);\n          return super.__appendText(string);\n        }\n      } else {\n        return super.__appendText(string);\n      }\n    }\n\n    __appendComment(string) {\n      var _candidate = this.candidate;\n\n      if (_candidate && isComment(_candidate)) {\n        if (_candidate.nodeValue !== string) {\n          _candidate.nodeValue = string;\n        }\n\n        this.candidate = _candidate.nextSibling;\n        return _candidate;\n      } else if (_candidate) {\n        this.clearMismatch(_candidate);\n      }\n\n      return super.__appendComment(string);\n    }\n\n    __openElement(tag) {\n      var _candidate = this.candidate;\n\n      if (_candidate && isElement(_candidate) && isSameNodeType(_candidate, tag)) {\n        this.unmatchedAttributes = [].slice.call(_candidate.attributes);\n        return _candidate;\n      } else if (_candidate) {\n        if (isElement(_candidate) && _candidate.tagName === 'TBODY') {\n          this.pushElement(_candidate, null);\n          this.currentCursor.injectedOmittedNode = true;\n          return this.__openElement(tag);\n        }\n\n        this.clearMismatch(_candidate);\n      }\n\n      return super.__openElement(tag);\n    }\n\n    __setAttribute(name, value, namespace) {\n      var unmatched = this.unmatchedAttributes;\n\n      if (unmatched) {\n        var attr = findByName(unmatched, name);\n\n        if (attr) {\n          if (attr.value !== value) {\n            attr.value = value;\n          }\n\n          unmatched.splice(unmatched.indexOf(attr), 1);\n          return;\n        }\n      }\n\n      return super.__setAttribute(name, value, namespace);\n    }\n\n    __setProperty(name, value) {\n      var unmatched = this.unmatchedAttributes;\n\n      if (unmatched) {\n        var attr = findByName(unmatched, name);\n\n        if (attr) {\n          if (attr.value !== value) {\n            attr.value = value;\n          }\n\n          unmatched.splice(unmatched.indexOf(attr), 1);\n          return;\n        }\n      }\n\n      return super.__setProperty(name, value);\n    }\n\n    __flushElement(parent, constructing) {\n      var {\n        unmatchedAttributes: unmatched\n      } = this;\n\n      if (unmatched) {\n        for (var i = 0; i < unmatched.length; i++) {\n          this.constructing.removeAttribute(unmatched[i].name);\n        }\n\n        this.unmatchedAttributes = null;\n      } else {\n        super.__flushElement(parent, constructing);\n      }\n    }\n\n    willCloseElement() {\n      var {\n        candidate,\n        currentCursor\n      } = this;\n\n      if (candidate !== null) {\n        this.clearMismatch(candidate);\n      }\n\n      if (currentCursor && currentCursor.injectedOmittedNode) {\n        this.popElement();\n      }\n\n      super.willCloseElement();\n    }\n\n    getMarker(element, guid) {\n      var marker = element.querySelector(`script[glmr=\"${guid}\"]`);\n\n      if (marker) {\n        return marker;\n      }\n\n      return null;\n    }\n\n    __pushRemoteElement(element, cursorId, insertBefore) {\n      var marker = this.getMarker(element, cursorId);\n\n      if (insertBefore === undefined) {\n        while (element.firstChild !== null && element.firstChild !== marker) {\n          this.remove(element.firstChild);\n        }\n\n        insertBefore = null;\n      }\n\n      var cursor = new RehydratingCursor(element, null, this.blockDepth);\n      this[CURSOR_STACK].push(cursor);\n\n      if (marker === null) {\n        this.disableRehydration(insertBefore);\n      } else {\n        this.candidate = this.remove(marker);\n      }\n\n      var block = new RemoteLiveBlock(element);\n      return this.pushLiveBlock(block, true);\n    }\n\n    didAppendBounds(bounds) {\n      super.didAppendBounds(bounds);\n\n      if (this.candidate) {\n        var last = bounds.lastNode();\n        this.candidate = last && last.nextSibling;\n      }\n\n      return bounds;\n    }\n\n  }\n\n  _exports.RehydrateBuilder = RehydrateBuilder;\n\n  function isTextNode(node) {\n    return node.nodeType === 3;\n  }\n\n  function isComment(node) {\n    return node.nodeType === 8;\n  }\n\n  function isOpenBlock(node) {\n    return node.nodeType === 8\n    /* COMMENT_NODE */\n    && node.nodeValue.lastIndexOf('%+b:', 0) === 0;\n  }\n\n  function isCloseBlock(node) {\n    return node.nodeType === 8\n    /* COMMENT_NODE */\n    && node.nodeValue.lastIndexOf('%-b:', 0) === 0;\n  }\n\n  function getBlockDepth(node) {\n    return parseInt(node.nodeValue.slice(4), 10);\n  }\n\n  function isElement(node) {\n    return node.nodeType === 1;\n  }\n\n  function isMarker(node) {\n    return node.nodeType === 8 && node.nodeValue === '%glmr%';\n  }\n\n  function isSeparator(node) {\n    return node.nodeType === 8 && node.nodeValue === '%|%';\n  }\n\n  function isEmpty$1(node) {\n    return node.nodeType === 8 && node.nodeValue === '% %';\n  }\n\n  function isSameNodeType(candidate, tag) {\n    if (candidate.namespaceURI === \"http://www.w3.org/2000/svg\"\n    /* SVG */\n    ) {\n        return candidate.tagName === tag;\n      }\n\n    return candidate.tagName === tag.toUpperCase();\n  }\n\n  function findByName(array, name) {\n    for (var i = 0; i < array.length; i++) {\n      var attr = array[i];\n      if (attr.name === name) return attr;\n    }\n\n    return undefined;\n  }\n\n  function rehydrationBuilder(env, cursor) {\n    return RehydrateBuilder.forInitialRender(env, cursor);\n  }\n});","define(\"@glimmer/util\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.assertNever = assertNever;\n  _exports.assert = debugAssert;\n  _exports.deprecate = deprecate;\n  _exports.dict = dict;\n  _exports.isDict = isDict;\n  _exports.isObject = isObject;\n  _exports.ensureGuid = ensureGuid;\n  _exports.initializeGuid = initializeGuid;\n  _exports.isSerializationFirstNode = isSerializationFirstNode;\n  _exports.assign = assign;\n  _exports.fillNulls = fillNulls;\n  _exports.values = values;\n  _exports.isDestroyable = isDestroyable;\n  _exports.isStringDestroyable = isStringDestroyable;\n  _exports.clearElement = clearElement;\n  _exports.isDrop = isDrop;\n  _exports.associate = associate;\n  _exports.associateDestructor = associateDestructor;\n  _exports.peekAssociated = peekAssociated;\n  _exports.takeAssociated = takeAssociated;\n  _exports.willDestroyAssociated = willDestroyAssociated;\n  _exports.didDestroyAssociated = didDestroyAssociated;\n  _exports.destructor = destructor;\n  _exports.snapshot = snapshot;\n  _exports.debugDropTree = debugDropTree;\n  _exports.printDropTree = printDropTree;\n  _exports.printDrop = printDrop;\n  _exports.keys = keys;\n  _exports.unwrap = unwrap;\n  _exports.expect = expect;\n  _exports.unreachable = unreachable;\n  _exports.exhausted = exhausted;\n  _exports.strip = strip;\n  _exports.encodeImmediate = encodeImmediate;\n  _exports.decodeImmediate = decodeImmediate;\n  _exports.isSmallInt = isSmallInt;\n  _exports.isHandle = isHandle;\n  _exports.encodeHandle = encodeHandle;\n  _exports.decodeHandle = decodeHandle;\n  _exports.unwrapHandle = unwrapHandle;\n  _exports.unwrapTemplate = unwrapTemplate;\n  _exports.extractHandle = extractHandle;\n  _exports.isOkHandle = isOkHandle;\n  _exports.isErrHandle = isErrHandle;\n  _exports.symbol = _exports.tuple = _exports.ListContentsDestructor = _exports.DESTRUCTORS = _exports.CHILDREN = _exports.DID_DROP = _exports.WILL_DROP = _exports.LINKED = _exports.DESTROY = _exports.debugToString = _exports.ListSlice = _exports.ListNode = _exports.LinkedList = _exports.EMPTY_SLICE = _exports.SERIALIZATION_FIRST_NODE_STRING = _exports.Stack = _exports.DictSet = _exports.EMPTY_ARRAY = void 0;\n  var EMPTY_ARRAY = Object.freeze([]); // import Logger from './logger';\n  // let alreadyWarned = false;\n\n  _exports.EMPTY_ARRAY = EMPTY_ARRAY;\n\n  function debugAssert(test, msg) {\n    // if (!alreadyWarned) {\n    //   alreadyWarned = true;\n    //   Logger.warn(\"Don't leave debug assertions on in public builds\");\n    // }\n    if (!test) {\n      throw new Error(msg || 'assertion failure');\n    }\n  }\n\n  function deprecate(desc) {\n    console.warn(`DEPRECATION: ${desc}`);\n  }\n\n  var GUID = 0;\n\n  function initializeGuid(object) {\n    return object._guid = ++GUID;\n  }\n\n  function ensureGuid(object) {\n    return object._guid || initializeGuid(object);\n  }\n\n  function dict() {\n    return Object.create(null);\n  }\n\n  function isDict(u) {\n    return u !== null && u !== undefined;\n  }\n\n  function isObject(u) {\n    return typeof u === 'object' && u !== null;\n  }\n\n  class DictSet {\n    constructor() {\n      this.dict = dict();\n    }\n\n    add(obj) {\n      if (typeof obj === 'string') this.dict[obj] = obj;else this.dict[ensureGuid(obj)] = obj;\n      return this;\n    }\n\n    delete(obj) {\n      if (typeof obj === 'string') delete this.dict[obj];else if (obj._guid) delete this.dict[obj._guid];\n    }\n\n  }\n\n  _exports.DictSet = DictSet;\n\n  class StackImpl {\n    constructor() {\n      this.stack = [];\n      this.current = null;\n    }\n\n    get size() {\n      return this.stack.length;\n    }\n\n    push(item) {\n      this.current = item;\n      this.stack.push(item);\n    }\n\n    pop() {\n      var item = this.stack.pop();\n      var len = this.stack.length;\n      this.current = len === 0 ? null : this.stack[len - 1];\n      return item === undefined ? null : item;\n    }\n\n    nth(from) {\n      var len = this.stack.length;\n      return len < from ? null : this.stack[len - from];\n    }\n\n    isEmpty() {\n      return this.stack.length === 0;\n    }\n\n    toArray() {\n      return this.stack;\n    }\n\n  }\n\n  _exports.Stack = StackImpl;\n\n  function keys(obj) {\n    return Object.keys(obj);\n  }\n\n  function unwrap(val) {\n    if (val === null || val === undefined) throw new Error(`Expected value to be present`);\n    return val;\n  }\n\n  function expect(val, message) {\n    if (val === null || val === undefined) throw new Error(message);\n    return val;\n  }\n\n  function unreachable(message = 'unreachable') {\n    return new Error(message);\n  }\n\n  function exhausted(value) {\n    throw new Error(`Exhausted ${value}`);\n  }\n\n  var tuple = (...args) => args;\n\n  _exports.tuple = tuple;\n  var symbol = typeof Symbol !== 'undefined' ? Symbol : key => `__${key}${Math.floor(Math.random() * Date.now())}__`;\n  _exports.symbol = symbol;\n  var DESTROY = symbol('DESTROY');\n  _exports.DESTROY = DESTROY;\n\n  function isDestroyable(value) {\n    return !!(value && value[DESTROY] !== undefined);\n  }\n\n  function isStringDestroyable(value) {\n    return !!(value && typeof value === 'object' && typeof value.destroy === 'function');\n  }\n\n  function clearElement(parent) {\n    var current = parent.firstChild;\n\n    while (current) {\n      var next = current.nextSibling;\n      parent.removeChild(current);\n      current = next;\n    }\n  }\n\n  var SERIALIZATION_FIRST_NODE_STRING = '%+b:0%';\n  _exports.SERIALIZATION_FIRST_NODE_STRING = SERIALIZATION_FIRST_NODE_STRING;\n\n  function isSerializationFirstNode(node) {\n    return node.nodeValue === SERIALIZATION_FIRST_NODE_STRING;\n  }\n\n  var LINKED = new WeakMap();\n  _exports.LINKED = LINKED;\n  var WILL_DROP = symbol('WILL_DROP');\n  _exports.WILL_DROP = WILL_DROP;\n  var DID_DROP = symbol('DID_DROP');\n  _exports.DID_DROP = DID_DROP;\n  var CHILDREN = symbol('CHILDREN');\n  _exports.CHILDREN = CHILDREN;\n  var DESTRUCTORS = new WeakMap();\n  _exports.DESTRUCTORS = DESTRUCTORS;\n\n  function isDrop(value) {\n    if (value === null || typeof value !== 'object') return false;\n    return value[DID_DROP] !== undefined;\n  }\n\n  function associate(parent, child) {\n    associateDestructor(parent, destructor(child));\n  }\n\n  function associateDestructor(parent, child) {\n    var associated = LINKED.get(parent);\n\n    if (!associated) {\n      associated = new Set();\n      LINKED.set(parent, associated);\n    }\n\n    associated.add(child);\n  }\n\n  function peekAssociated(parent) {\n    return LINKED.get(parent) || null;\n  }\n\n  function takeAssociated(parent) {\n    var linked = LINKED.get(parent);\n\n    if (linked && linked.size > 0) {\n      LINKED.delete(parent);\n      return linked;\n    } else {\n      return null;\n    }\n  }\n\n  function willDestroyAssociated(parent) {\n    var associated = LINKED.get(parent);\n\n    if (associated) {\n      associated.forEach(item => {\n        item[WILL_DROP]();\n      });\n    }\n  }\n\n  function didDestroyAssociated(parent) {\n    var associated = LINKED.get(parent);\n\n    if (associated) {\n      associated.forEach(item => {\n        item[DID_DROP]();\n        associated.delete(item);\n      });\n    }\n  }\n\n  function destructor(value) {\n    var d = DESTRUCTORS.get(value);\n\n    if (!d) {\n      if (isDestroyable(value)) {\n        d = new DestroyableDestructor(value);\n      } else if (isStringDestroyable(value)) {\n        d = new StringDestroyableDestructor(value);\n      } else {\n        d = new SimpleDestructor(value);\n      }\n\n      DESTRUCTORS.set(value, d);\n    }\n\n    return d;\n  }\n\n  function snapshot(values) {\n    return new SnapshotDestructor(values);\n  }\n\n  class SnapshotDestructor {\n    constructor(destructors) {\n      this.destructors = destructors;\n    }\n\n    [WILL_DROP]() {\n      this.destructors.forEach(item => item[WILL_DROP]());\n    }\n\n    [DID_DROP]() {\n      this.destructors.forEach(item => item[DID_DROP]());\n    }\n\n    get [CHILDREN]() {\n      return this.destructors;\n    }\n\n    toString() {\n      return 'SnapshotDestructor';\n    }\n\n  }\n\n  class DestroyableDestructor {\n    constructor(inner) {\n      this.inner = inner;\n    }\n\n    [WILL_DROP]() {\n      willDestroyAssociated(this.inner);\n    }\n\n    [DID_DROP]() {\n      this.inner[DESTROY]();\n      didDestroyAssociated(this.inner);\n    }\n\n    get [CHILDREN]() {\n      return LINKED.get(this.inner) || [];\n    }\n\n    toString() {\n      return 'DestroyableDestructor';\n    }\n\n  }\n\n  class StringDestroyableDestructor {\n    constructor(inner) {\n      this.inner = inner;\n    }\n\n    [WILL_DROP]() {\n      if (typeof this.inner.willDestroy === 'function') {\n        this.inner.willDestroy();\n      }\n\n      willDestroyAssociated(this.inner);\n    }\n\n    [DID_DROP]() {\n      this.inner.destroy();\n      didDestroyAssociated(this.inner);\n    }\n\n    get [CHILDREN]() {\n      return LINKED.get(this.inner) || [];\n    }\n\n    toString() {\n      return 'StringDestroyableDestructor';\n    }\n\n  }\n\n  class SimpleDestructor {\n    constructor(inner) {\n      this.inner = inner;\n    }\n\n    [WILL_DROP]() {\n      willDestroyAssociated(this.inner);\n    }\n\n    [DID_DROP]() {\n      didDestroyAssociated(this.inner);\n    }\n\n    get [CHILDREN]() {\n      return LINKED.get(this.inner) || [];\n    }\n\n    toString() {\n      return 'SimpleDestructor';\n    }\n\n  }\n\n  class ListContentsDestructor {\n    constructor(inner) {\n      this.inner = inner;\n    }\n\n    [WILL_DROP]() {\n      this.inner.forEachNode(d => destructor(d)[WILL_DROP]());\n    }\n\n    [DID_DROP]() {\n      this.inner.forEachNode(d => destructor(d)[DID_DROP]());\n    }\n\n    get [CHILDREN]() {\n      var out = [];\n      this.inner.forEachNode(d => out.push(...destructor(d)[CHILDREN]));\n      return out;\n    }\n\n    toString() {\n      return 'ListContentsDestructor';\n    }\n\n  }\n\n  _exports.ListContentsDestructor = ListContentsDestructor;\n\n  function debugDropTree(inner) {\n    var hasDrop = isDrop(inner);\n    var rawChildren = LINKED.get(inner) || null;\n    var children = null;\n\n    if (rawChildren) {\n      children = [];\n\n      for (var child of rawChildren) {\n        children.push(debugDropTree(child));\n      }\n    }\n\n    var obj = Object.create(null);\n    obj.inner = inner;\n\n    if (children) {\n      obj.children = children;\n    }\n\n    obj.hasDrop = hasDrop;\n    return obj;\n  }\n\n  function printDropTree(inner) {\n    printDrop(destructor(inner));\n  }\n\n  function printDrop(inner) {\n    console.group(String(inner));\n    console.log(inner);\n    var children = inner[CHILDREN] || null;\n\n    if (children) {\n      for (var child of children) {\n        printDrop(child);\n      }\n    }\n\n    console.groupEnd();\n  }\n\n  class ListNode {\n    constructor(value) {\n      this.next = null;\n      this.prev = null;\n      this.value = value;\n    }\n\n  }\n\n  _exports.ListNode = ListNode;\n\n  class LinkedList {\n    constructor() {\n      this.clear();\n    }\n\n    head() {\n      return this._head;\n    }\n\n    tail() {\n      return this._tail;\n    }\n\n    clear() {\n      this._head = this._tail = null;\n    }\n\n    toArray() {\n      var out = [];\n      this.forEachNode(n => out.push(n));\n      return out;\n    }\n\n    nextNode(node) {\n      return node.next;\n    }\n\n    forEachNode(callback) {\n      var node = this._head;\n\n      while (node !== null) {\n        callback(node);\n        node = node.next;\n      }\n    }\n\n    insertBefore(node, reference = null) {\n      if (reference === null) return this.append(node);\n      if (reference.prev) reference.prev.next = node;else this._head = node;\n      node.prev = reference.prev;\n      node.next = reference;\n      reference.prev = node;\n      return node;\n    }\n\n    append(node) {\n      var tail = this._tail;\n\n      if (tail) {\n        tail.next = node;\n        node.prev = tail;\n        node.next = null;\n      } else {\n        this._head = node;\n      }\n\n      return this._tail = node;\n    }\n\n    remove(node) {\n      if (node.prev) node.prev.next = node.next;else this._head = node.next;\n      if (node.next) node.next.prev = node.prev;else this._tail = node.prev;\n      return node;\n    }\n\n    [WILL_DROP]() {\n      this.forEachNode(d => destructor(d)[WILL_DROP]());\n    }\n\n    [DID_DROP]() {\n      this.forEachNode(d => destructor(d)[DID_DROP]());\n    }\n\n    get [CHILDREN]() {\n      var out = [];\n      this.forEachNode(d => out.push(...destructor(d)[CHILDREN]));\n      return out;\n    }\n\n  }\n\n  _exports.LinkedList = LinkedList;\n\n  class ListSlice {\n    constructor(head, tail) {\n      this._head = head;\n      this._tail = tail;\n    }\n\n    forEachNode(callback) {\n      var node = this._head;\n\n      while (node !== null) {\n        callback(node);\n        node = this.nextNode(node);\n      }\n    }\n\n    head() {\n      return this._head;\n    }\n\n    tail() {\n      return this._tail;\n    }\n\n    toArray() {\n      var out = [];\n      this.forEachNode(n => out.push(n));\n      return out;\n    }\n\n    nextNode(node) {\n      if (node === this._tail) return null;\n      return node.next;\n    }\n\n  }\n\n  _exports.ListSlice = ListSlice;\n  var EMPTY_SLICE = new ListSlice(null, null);\n  _exports.EMPTY_SLICE = EMPTY_SLICE;\n  var {\n    keys: objKeys\n  } = Object;\n\n  function assign(obj) {\n    for (var i = 1; i < arguments.length; i++) {\n      var assignment = arguments[i];\n      if (assignment === null || typeof assignment !== 'object') continue;\n\n      var _keys = objKeys(assignment);\n\n      for (var j = 0; j < _keys.length; j++) {\n        var key = _keys[j];\n        obj[key] = assignment[key];\n      }\n    }\n\n    return obj;\n  }\n\n  function fillNulls(count) {\n    var arr = new Array(count);\n\n    for (var i = 0; i < count; i++) {\n      arr[i] = null;\n    }\n\n    return arr;\n  }\n\n  function values(obj) {\n    var vals = [];\n\n    for (var key in obj) {\n      vals.push(obj[key]);\n    }\n\n    return vals;\n  }\n\n  function strip(strings, ...args) {\n    var out = '';\n\n    for (var i = 0; i < strings.length; i++) {\n      var string = strings[i];\n      var dynamic = args[i] !== undefined ? String(args[i]) : '';\n      out += `${string}${dynamic}`;\n    }\n\n    var lines = out.split('\\n');\n\n    while (lines.length && lines[0].match(/^\\s*$/)) {\n      lines.shift();\n    }\n\n    while (lines.length && lines[lines.length - 1].match(/^\\s*$/)) {\n      lines.pop();\n    }\n\n    var min = Infinity;\n\n    for (var line of lines) {\n      var leading = line.match(/^\\s*/)[0].length;\n      min = Math.min(min, leading);\n    }\n\n    var stripped = [];\n\n    for (var _line of lines) {\n      stripped.push(_line.slice(min));\n    }\n\n    return stripped.join('\\n');\n  }\n  /**\n   * Encodes a value that can be stored directly instead of being a handle.\n   *\n   * Immediates use the positive half of 32bits\n   *\n   * @param value - the value to be encoded.\n   */\n\n\n  function encodeImmediate(value) {\n    if (typeof value === 'number') {\n      // 1073741827 - (-1) == 1073741828\n      // 1073741827 - (-1073741820) == 2147483647\n      // positive it stays as is\n      // 0 - 1073741823\n      return value < 0 ? 1073741827\n      /* NEGATIVE_BASE */\n      - value : value;\n    }\n\n    if (value === false) {\n      return 1073741824\n      /* FALSE */\n      ;\n    }\n\n    if (value === true) {\n      return 1073741825\n      /* TRUE */\n      ;\n    }\n\n    if (value === null) {\n      return 1073741826\n      /* NULL */\n      ;\n    }\n\n    if (value === undefined) {\n      return 1073741827\n      /* UNDEFINED */\n      ;\n    }\n\n    return exhausted(value);\n  }\n  /**\n   * Decodes an immediate into its value.\n   *\n   * @param value - the encoded immediate value\n   */\n\n\n  function decodeImmediate(value) {\n    if (value > 1073741823\n    /* MAX_INT */\n    ) {\n        switch (value) {\n          case 1073741824\n          /* FALSE */\n          :\n            return false;\n\n          case 1073741825\n          /* TRUE */\n          :\n            return true;\n\n          case 1073741826\n          /* NULL */\n          :\n            return null;\n\n          case 1073741827\n          /* UNDEFINED */\n          :\n            return undefined;\n\n          default:\n            // map 1073741828 to 2147483647 to -1 to -1073741820\n            // 1073741827 - 1073741828 == -1\n            // 1073741827 - 2147483647 == -1073741820\n            return 1073741827\n            /* NEGATIVE_BASE */\n            - value;\n        }\n      }\n\n    return value;\n  }\n  /**\n   * True if the number can be stored directly or false if it needs a handle.\n   *\n   * This is used on any number type to see if it can be directly encoded.\n   */\n\n\n  function isSmallInt(num) {\n    return isInt(num, -1073741820\n    /* MIN_INT */\n    , 1073741823\n    /* MAX_INT */\n    );\n  }\n  /**\n   * True if the encoded int32 operand or encoded stack int32 is a handle.\n   */\n\n\n  function isHandle(encoded) {\n    return encoded < 0;\n  }\n  /**\n   * Encodes an index to an operand or stack handle.\n   */\n\n\n  function encodeHandle(index, maxIndex = 2147483647\n  /* MAX_INDEX */\n  , maxHandle = -1\n  /* MAX_HANDLE */\n  ) {\n    if (index > maxIndex) {\n      throw new Error(`index ${index} overflowed range 0 to ${maxIndex}`);\n    } // -1 - 0 == -1\n    // -1 - 1073741823 == -1073741824\n    // -1073741825 - 0 == -1073741825\n    // -1073741825 - 1073741823 == -2147483648\n\n\n    return maxHandle - index;\n  }\n  /**\n   * Decodes the index from the specified operand or stack handle.\n   */\n\n\n  function decodeHandle(handle, maxHandle = -1\n  /* MAX_HANDLE */\n  ) {\n    // -1 - -1073741824 == 1073741823\n    // -1073741825 - -1073741825 == 0\n    // -1073741825 - -2147483648 == 1073741823\n    return maxHandle - handle;\n  }\n\n  function isInt(num, min, max) {\n    // this is the same as Math.floor(num) === num\n    // also NaN % 1 is NaN and Infinity % 1 is NaN so both should fail\n    return num % 1 === 0 && num >= min && num <= max;\n  }\n\n  function unwrapHandle(handle) {\n    if (typeof handle === 'number') {\n      return handle;\n    } else {\n      var error = handle.errors[0];\n      throw new Error(`Compile Error: ${error.problem} @ ${error.span.start}..${error.span.end}`);\n    }\n  }\n\n  function unwrapTemplate(template) {\n    if (template.result === 'error') {\n      throw new Error(`Compile Error: ${template.problem} @ ${template.span.start}..${template.span.end}`);\n    }\n\n    return template;\n  }\n\n  function extractHandle(handle) {\n    if (typeof handle === 'number') {\n      return handle;\n    } else {\n      return handle.handle;\n    }\n  }\n\n  function isOkHandle(handle) {\n    return typeof handle === 'number';\n  }\n\n  function isErrHandle(handle) {\n    return typeof handle === 'number';\n  }\n\n  var debugToString;\n\n  if (true\n  /* DEBUG */\n  ) {\n    var getFunctionName = fn => {\n      var functionName = fn.name;\n\n      if (functionName === undefined) {\n        var match = Function.prototype.toString.call(fn).match(/function (\\w+)\\s*\\(/);\n        functionName = match && match[1] || '';\n      }\n\n      return functionName.replace(/^bound /, '');\n    };\n\n    var getObjectName = obj => {\n      var name;\n      var className;\n\n      if (obj.constructor && obj.constructor !== Object) {\n        className = getFunctionName(obj.constructor);\n      }\n\n      if ('toString' in obj && obj.toString !== Object.prototype.toString && obj.toString !== Function.prototype.toString) {\n        name = obj.toString();\n      } // If the class has a decent looking name, and the `toString` is one of the\n      // default Ember toStrings, replace the constructor portion of the toString\n      // with the class name. We check the length of the class name to prevent doing\n      // this when the value is minified.\n\n\n      if (name && name.match(/<.*:ember\\d+>/) && className && className[0] !== '_' && className.length > 2 && className !== 'Class') {\n        return name.replace(/<.*:/, `<${className}:`);\n      }\n\n      return name || className;\n    };\n\n    var getPrimitiveName = value => {\n      return String(value);\n    };\n\n    debugToString = value => {\n      if (typeof value === 'function') {\n        return getFunctionName(value) || `(unknown function)`;\n      } else if (typeof value === 'object' && value !== null) {\n        return getObjectName(value) || `(unknown object)`;\n      } else {\n        return getPrimitiveName(value);\n      }\n    };\n  }\n\n  var debugToString$1 = debugToString;\n  _exports.debugToString = debugToString$1;\n\n  function assertNever(value, desc = 'unexpected unreachable branch') {\n    console.log('unreachable', value);\n    console.trace(`${desc} :: ${JSON.stringify(value)} (${value})`);\n  }\n});","define(\"@glimmer/validator\", [\"exports\", \"@ember/polyfills\"], function (_exports, _polyfills) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.bump = bump;\n  _exports.combine = combine;\n  _exports.createCombinatorTag = createCombinatorTag;\n  _exports.createTag = createTag;\n  _exports.createUpdatableTag = createUpdatableTag;\n  _exports.isConst = isConst;\n  _exports.isConstTag = isConstTag;\n  _exports.validateTag = validateTag;\n  _exports.valueForTag = valueForTag;\n  _exports.dirtyTagFor = dirtyTagFor;\n  _exports.tagFor = tagFor;\n  _exports.setPropertyDidChange = setPropertyDidChange;\n  _exports.beginTrackFrame = beginTrackFrame;\n  _exports.endTrackFrame = endTrackFrame;\n  _exports.consumeTag = consumeTag;\n  _exports.isTracking = isTracking;\n  _exports.track = track;\n  _exports.trackedData = trackedData;\n  _exports.memoizeTracked = memoizeTracked;\n  _exports.untrack = untrack;\n  _exports.isConstMemo = isConstMemo;\n  _exports.deprecateMutationsInAutotrackingTransaction = _exports.runInAutotrackingTransaction = _exports.setAutotrackingTransactionEnv = _exports.EPOCH = _exports.VOLATILE = _exports.VOLATILE_TAG = _exports.VolatileTag = _exports.updateTag = _exports.INITIAL = _exports.dirtyTag = _exports.CURRENT_TAG = _exports.CurrentTag = _exports.CONSTANT = _exports.CONSTANT_TAG = _exports.COMPUTE = _exports.ALLOW_CYCLES = void 0;\n  // This is a duplicate utility from @glimmer/util because `@glimmer/validator`\n  // should not depend on any other @glimmer packages, in order to avoid pulling\n  // in types and prevent regressions in `@glimmer/tracking` (which has public types).\n  var symbol = typeof Symbol !== 'undefined' ? Symbol : key => `__${key}${Math.floor(Math.random() * Date.now())}__`;\n  var runInAutotrackingTransaction;\n  _exports.runInAutotrackingTransaction = runInAutotrackingTransaction;\n  var deprecateMutationsInAutotrackingTransaction;\n  _exports.deprecateMutationsInAutotrackingTransaction = deprecateMutationsInAutotrackingTransaction;\n  var setAutotrackingTransactionEnv;\n  _exports.setAutotrackingTransactionEnv = setAutotrackingTransactionEnv;\n  var assertTagNotConsumed;\n  var markTagAsConsumed;\n\n  if (true\n  /* DEBUG */\n  ) {\n    var DEPRECATE_IN_AUTOTRACKING_TRANSACTION = false;\n    var AUTOTRACKING_TRANSACTION = null;\n    var debuggingContexts = []; /////////\n\n    var TRANSACTION_ENV = {\n      assert(message) {\n        throw new Error(message);\n      },\n\n      deprecate(message) {\n        console.warn(message);\n      },\n\n      debugMessage(obj, keyName) {\n        var objName;\n\n        if (typeof obj === 'function') {\n          objName = obj.name;\n        } else if (typeof obj === 'object' && obj !== null) {\n          var className = obj.constructor && obj.constructor.name || '(unknown class)';\n          objName = `(an instance of ${className})`;\n        } else if (obj === undefined) {\n          objName = '(an unknown tag)';\n        } else {\n          objName = String(obj);\n        }\n\n        var dirtyString = keyName ? `\\`${keyName}\\` on \\`${objName}\\`` : `\\`${objName}\\``;\n        return `You attempted to update ${dirtyString}, but it had already been used previously in the same computation.  Attempting to update a value after using it in a computation can cause logical errors, infinite revalidation bugs, and performance issues, and is not supported.`;\n      }\n\n    };\n\n    _exports.setAutotrackingTransactionEnv = setAutotrackingTransactionEnv = env => (0, _polyfills.assign)(TRANSACTION_ENV, env);\n    /**\n     * Creates a global autotracking transaction. This will prevent any backflow\n     * in any `track` calls within the transaction, even if they are not\n     * externally consumed.\n     *\n     * `runInAutotrackingTransaction` can be called within itself, and it will add\n     * onto the existing transaction if one exists.\n     *\n     * TODO: Only throw an error if the `track` is consumed.\n     */\n\n\n    _exports.runInAutotrackingTransaction = runInAutotrackingTransaction = (fn, debuggingContext) => {\n      var previousDeprecateState = DEPRECATE_IN_AUTOTRACKING_TRANSACTION;\n      var previousTransactionState = AUTOTRACKING_TRANSACTION;\n      DEPRECATE_IN_AUTOTRACKING_TRANSACTION = false;\n\n      if (previousTransactionState === null) {\n        // if there was no transaction start it. Otherwise, the transaction already exists.\n        AUTOTRACKING_TRANSACTION = new WeakMap();\n      }\n\n      if (debuggingContext) {\n        debuggingContexts.unshift(debuggingContext);\n      }\n\n      try {\n        fn();\n      } finally {\n        if (debuggingContext) {\n          debuggingContexts.shift();\n        }\n\n        DEPRECATE_IN_AUTOTRACKING_TRANSACTION = previousDeprecateState;\n        AUTOTRACKING_TRANSACTION = previousTransactionState;\n      }\n    };\n    /**\n     * Switches to deprecating within an autotracking transaction, if one exists.\n     * If `runInAutotrackingTransaction` is called within the callback of this\n     * method, it switches back to throwing an error, allowing zebra-striping of\n     * the types of errors that are thrown.\n     *\n     * Does not start an autotracking transaction.\n     *\n     * NOTE: For Ember usage only, in general you should assert that these\n     * invariants are true.\n     */\n\n\n    _exports.deprecateMutationsInAutotrackingTransaction = deprecateMutationsInAutotrackingTransaction = fn => {\n      var previousDeprecateState = DEPRECATE_IN_AUTOTRACKING_TRANSACTION;\n      DEPRECATE_IN_AUTOTRACKING_TRANSACTION = true;\n\n      try {\n        fn();\n      } finally {\n        DEPRECATE_IN_AUTOTRACKING_TRANSACTION = previousDeprecateState;\n      }\n    };\n\n    var nthIndex = (str, pattern, n, startingPos = -1) => {\n      var i = startingPos;\n\n      while (n-- > 0 && i++ < str.length) {\n        i = str.indexOf(pattern, i);\n        if (i < 0) break;\n      }\n\n      return i;\n    };\n\n    var makeAutotrackingErrorMessage = (sourceData, obj, keyName) => {\n      var message = [TRANSACTION_ENV.debugMessage(obj, keyName && String(keyName))];\n\n      if (sourceData.context) {\n        message.push(`\\`${String(keyName)}\\` was first used:\\n\\n${sourceData.context}`);\n      }\n\n      message.push(`Stack trace for the update:`);\n      return message.join('\\n\\n');\n    };\n\n    markTagAsConsumed = _tag => {\n      if (!AUTOTRACKING_TRANSACTION || AUTOTRACKING_TRANSACTION.has(_tag)) return;\n      AUTOTRACKING_TRANSACTION.set(_tag, {\n        context: debuggingContexts.map(c => c.replace(/^/gm, '  ').replace(/^ /, '-')).join('\\n\\n')\n      }); // We need to mark the tag and all of its subtags as consumed, so we need to\n      // cast it and access its internals. In the future this shouldn't be necessary,\n      // this is only for computed properties.\n\n      var tag = _tag;\n\n      if (tag.subtag) {\n        markTagAsConsumed(tag.subtag);\n      }\n\n      if (tag.subtags) {\n        tag.subtags.forEach(tag => markTagAsConsumed(tag));\n      }\n    };\n\n    assertTagNotConsumed = (tag, obj, keyName, forceHardError = false) => {\n      if (AUTOTRACKING_TRANSACTION === null) return;\n      var sourceData = AUTOTRACKING_TRANSACTION.get(tag);\n      if (!sourceData) return;\n\n      if (DEPRECATE_IN_AUTOTRACKING_TRANSACTION && !forceHardError) {\n        TRANSACTION_ENV.deprecate(makeAutotrackingErrorMessage(sourceData, obj, keyName));\n      } else {\n        // This hack makes the assertion message nicer, we can cut off the first\n        // few lines of the stack trace and let users know where the actual error\n        // occurred.\n        try {\n          TRANSACTION_ENV.assert(makeAutotrackingErrorMessage(sourceData, obj, keyName));\n        } catch (e) {\n          if (e.stack) {\n            var updateStackBegin = e.stack.indexOf('Stack trace for the update:');\n\n            if (updateStackBegin !== -1) {\n              var start = nthIndex(e.stack, '\\n', 1, updateStackBegin);\n              var end = nthIndex(e.stack, '\\n', 4, updateStackBegin);\n              e.stack = e.stack.substr(0, start) + e.stack.substr(end);\n            }\n          }\n\n          throw e;\n        }\n      }\n    };\n  }\n\n  var CONSTANT = 0;\n  _exports.CONSTANT = CONSTANT;\n  var INITIAL = 1;\n  _exports.INITIAL = INITIAL;\n  var VOLATILE = 9007199254740991; // MAX_INT\n\n  _exports.VOLATILE = VOLATILE;\n  var $REVISION = INITIAL;\n\n  function bump() {\n    $REVISION++;\n  } //////////\n\n\n  var COMPUTE = symbol('TAG_COMPUTE'); //////////\n\n  /**\n   * `value` receives a tag and returns an opaque Revision based on that tag. This\n   * snapshot can then later be passed to `validate` with the same tag to\n   * determine if the tag has changed at all since the time that `value` was\n   * called.\n   *\n   * The current implementation returns the global revision count directly for\n   * performance reasons. This is an implementation detail, and should not be\n   * relied on directly by users of these APIs. Instead, Revisions should be\n   * treated as if they are opaque/unknown, and should only be interacted with via\n   * the `value`/`validate` API.\n   *\n   * @param tag\n   */\n\n  _exports.COMPUTE = COMPUTE;\n\n  function valueForTag(_tag) {\n    return $REVISION;\n  }\n  /**\n   * `validate` receives a tag and a snapshot from a previous call to `value` with\n   * the same tag, and determines if the tag is still valid compared to the\n   * snapshot. If the tag's state has changed at all since then, `validate` will\n   * return false, otherwise it will return true. This is used to determine if a\n   * calculation related to the tags should be rerun.\n   *\n   * @param tag\n   * @param snapshot\n   */\n\n\n  function validateTag(tag, snapshot) {\n    return snapshot >= tag[COMPUTE]();\n  }\n\n  var TYPE = symbol('TAG_TYPE');\n  var ALLOW_CYCLES;\n  _exports.ALLOW_CYCLES = ALLOW_CYCLES;\n\n  if (true\n  /* DEBUG */\n  ) {\n    _exports.ALLOW_CYCLES = ALLOW_CYCLES = new WeakMap();\n  }\n\n  class MonomorphicTagImpl {\n    constructor(type) {\n      this.revision = INITIAL;\n      this.lastChecked = INITIAL;\n      this.lastValue = INITIAL;\n      this.isUpdating = false;\n      this.subtags = null;\n      this.subtag = null;\n      this.subtagBufferCache = null;\n      this[TYPE] = type;\n    }\n\n    [COMPUTE]() {\n      var {\n        lastChecked\n      } = this;\n\n      if (this.isUpdating === true) {\n        if (true\n        /* DEBUG */\n        && !ALLOW_CYCLES.has(this)) {\n          throw new Error('Cycles in tags are not allowed');\n        }\n\n        this.lastChecked = ++$REVISION;\n      } else if (lastChecked !== $REVISION) {\n        this.isUpdating = true;\n        this.lastChecked = $REVISION;\n\n        try {\n          var {\n            subtags,\n            subtag,\n            subtagBufferCache,\n            lastValue,\n            revision\n          } = this;\n\n          if (subtag !== null) {\n            var subtagValue = subtag[COMPUTE]();\n\n            if (subtagValue === subtagBufferCache) {\n              revision = Math.max(revision, lastValue);\n            } else {\n              // Clear the temporary buffer cache\n              this.subtagBufferCache = null;\n              revision = Math.max(revision, subtagValue);\n            }\n          }\n\n          if (subtags !== null) {\n            for (var i = 0; i < subtags.length; i++) {\n              var value = subtags[i][COMPUTE]();\n              revision = Math.max(value, revision);\n            }\n          }\n\n          this.lastValue = revision;\n        } finally {\n          this.isUpdating = false;\n        }\n      }\n\n      return this.lastValue;\n    }\n\n    static updateTag(_tag, _subtag) {\n      if (true\n      /* DEBUG */\n      && _tag[TYPE] !== 1\n      /* Updatable */\n      ) {\n          throw new Error('Attempted to update a tag that was not updatable');\n        } // TODO: TS 3.7 should allow us to do this via assertion\n\n\n      var tag = _tag;\n      var subtag = _subtag;\n\n      if (subtag === CONSTANT_TAG) {\n        tag.subtag = null;\n      } else {\n        // There are two different possibilities when updating a subtag:\n        //\n        // 1. subtag[COMPUTE]() <= tag[COMPUTE]();\n        // 2. subtag[COMPUTE]() > tag[COMPUTE]();\n        //\n        // The first possibility is completely fine within our caching model, but\n        // the second possibility presents a problem. If the parent tag has\n        // already been read, then it's value is cached and will not update to\n        // reflect the subtag's greater value. Next time the cache is busted, the\n        // subtag's value _will_ be read, and it's value will be _greater_ than\n        // the saved snapshot of the parent, causing the resulting calculation to\n        // be rerun erroneously.\n        //\n        // In order to prevent this, when we first update to a new subtag we store\n        // its computed value, and then check against that computed value on\n        // subsequent updates. If its value hasn't changed, then we return the\n        // parent's previous value. Once the subtag changes for the first time,\n        // we clear the cache and everything is finally in sync with the parent.\n        tag.subtagBufferCache = subtag[COMPUTE]();\n        tag.subtag = subtag;\n      }\n    }\n\n    static dirtyTag(tag) {\n      if (true\n      /* DEBUG */\n      && !(tag[TYPE] === 1\n      /* Updatable */\n      || tag[TYPE] === 0\n      /* Dirtyable */\n      )) {\n        throw new Error('Attempted to dirty a tag that was not dirtyable');\n      }\n\n      if (true\n      /* DEBUG */\n      ) {\n        // Usually by this point, we've already asserted with better error information,\n        // but this is our last line of defense.\n        assertTagNotConsumed(tag);\n      }\n\n      tag.revision = ++$REVISION;\n    }\n\n  }\n\n  var dirtyTag = MonomorphicTagImpl.dirtyTag;\n  _exports.dirtyTag = dirtyTag;\n  var updateTag = MonomorphicTagImpl.updateTag; //////////\n\n  _exports.updateTag = updateTag;\n\n  function createTag() {\n    return new MonomorphicTagImpl(0\n    /* Dirtyable */\n    );\n  }\n\n  function createUpdatableTag() {\n    return new MonomorphicTagImpl(1\n    /* Updatable */\n    );\n  } //////////\n\n\n  var CONSTANT_TAG = new MonomorphicTagImpl(3\n  /* Constant */\n  );\n  _exports.CONSTANT_TAG = CONSTANT_TAG;\n\n  function isConst({\n    tag\n  }) {\n    return tag === CONSTANT_TAG;\n  }\n\n  function isConstTag(tag) {\n    return tag === CONSTANT_TAG;\n  } //////////\n\n\n  class VolatileTag {\n    [COMPUTE]() {\n      return VOLATILE;\n    }\n\n  }\n\n  _exports.VolatileTag = VolatileTag;\n  var VOLATILE_TAG = new VolatileTag(); //////////\n\n  _exports.VOLATILE_TAG = VOLATILE_TAG;\n\n  class CurrentTag {\n    [COMPUTE]() {\n      return $REVISION;\n    }\n\n  }\n\n  _exports.CurrentTag = CurrentTag;\n  var CURRENT_TAG = new CurrentTag(); //////////\n\n  _exports.CURRENT_TAG = CURRENT_TAG;\n\n  function combine(tags) {\n    var optimized = [];\n\n    for (var i = 0, l = tags.length; i < l; i++) {\n      var tag = tags[i];\n      if (tag === CONSTANT_TAG) continue;\n      optimized.push(tag);\n    }\n\n    return createCombinatorTag(optimized);\n  }\n\n  function createCombinatorTag(tags) {\n    switch (tags.length) {\n      case 0:\n        return CONSTANT_TAG;\n\n      case 1:\n        return tags[0];\n\n      default:\n        var tag = new MonomorphicTagImpl(2\n        /* Combinator */\n        );\n        tag.subtags = tags;\n        return tag;\n    }\n  }\n\n  var propertyDidChange = function () {};\n\n  function setPropertyDidChange(cb) {\n    propertyDidChange = cb;\n  }\n\n  function isObject(u) {\n    return typeof u === 'object' && u !== null || typeof u === 'function';\n  }\n\n  var TRACKED_TAGS = new WeakMap();\n\n  function dirtyTagFor(obj, key) {\n    if (isObject(obj)) {\n      var tags = TRACKED_TAGS.get(obj); // No tags have been setup for this object yet, return\n\n      if (tags === undefined) return; // Dirty the tag for the specific property if it exists\n\n      var propertyTag = tags.get(key);\n\n      if (propertyTag !== undefined) {\n        if (true\n        /* DEBUG */\n        ) {\n          assertTagNotConsumed(propertyTag, obj, key);\n        }\n\n        dirtyTag(propertyTag);\n        propertyDidChange();\n      }\n    } else {\n      throw new Error(`BUG: Can't update a tag for a primitive`);\n    }\n  }\n\n  function tagFor(obj, key) {\n    if (isObject(obj)) {\n      var tags = TRACKED_TAGS.get(obj);\n\n      if (tags === undefined) {\n        tags = new Map();\n        TRACKED_TAGS.set(obj, tags);\n      } else if (tags.has(key)) {\n        return tags.get(key);\n      }\n\n      var tag = createUpdatableTag();\n      tags.set(key, tag);\n      return tag;\n    } else {\n      return CONSTANT_TAG;\n    }\n  }\n  /**\n   * An object that that tracks @tracked properties that were consumed.\n   */\n\n\n  class Tracker {\n    constructor() {\n      this.tags = new Set();\n      this.last = null;\n    }\n\n    add(tag) {\n      this.tags.add(tag);\n\n      if (true\n      /* DEBUG */\n      ) {\n        markTagAsConsumed(tag);\n      }\n\n      this.last = tag;\n    }\n\n    combine() {\n      var {\n        tags\n      } = this;\n\n      if (tags.size === 0) {\n        return CONSTANT_TAG;\n      } else if (tags.size === 1) {\n        return this.last;\n      } else {\n        var tagsArr = [];\n        tags.forEach(tag => tagsArr.push(tag));\n        return combine(tagsArr);\n      }\n    }\n\n  }\n  /**\n   * Whenever a tracked computed property is entered, the current tracker is\n   * saved off and a new tracker is replaced.\n   *\n   * Any tracked properties consumed are added to the current tracker.\n   *\n   * When a tracked computed property is exited, the tracker's tags are\n   * combined and added to the parent tracker.\n   *\n   * The consequence is that each tracked computed property has a tag\n   * that corresponds to the tracked properties consumed inside of\n   * itself, including child tracked computed properties.\n   */\n\n\n  var CURRENT_TRACKER = null;\n  var OPEN_TRACK_FRAMES = [];\n\n  function beginTrackFrame() {\n    OPEN_TRACK_FRAMES.push(CURRENT_TRACKER);\n    CURRENT_TRACKER = new Tracker();\n  }\n\n  function endTrackFrame() {\n    var current = CURRENT_TRACKER;\n\n    if (true\n    /* DEBUG */\n    && OPEN_TRACK_FRAMES.length === 0) {\n      throw new Error('attempted to close a tracking frame, but one was not open');\n    }\n\n    CURRENT_TRACKER = OPEN_TRACK_FRAMES.pop();\n    return current.combine();\n  } //////////\n\n\n  var IS_CONST_MAP = new WeakMap();\n\n  function memoizeTracked(callback, debuggingContext) {\n    var lastValue;\n    var tag;\n    var snapshot;\n\n    var memoized = (...args) => {\n      if (!tag || !validateTag(tag, snapshot)) {\n        beginTrackFrame();\n\n        try {\n          if (true\n          /* DEBUG */\n          ) {\n            runInAutotrackingTransaction(() => lastValue = callback(...args), debuggingContext);\n          } else {\n            lastValue = callback(...args);\n          }\n        } finally {\n          tag = endTrackFrame();\n          snapshot = valueForTag(tag);\n          consumeTag(tag); // If the final tag is constant, then we know for sure that this\n          // memoized function can never change. There are times when this\n          // information is useful externally (i.e. in the append VM, it tells us\n          // whether or not to emit opcodes) so we expose it via a metadata weakmap.\n\n          if (tag === CONSTANT_TAG) {\n            IS_CONST_MAP.set(memoized, true);\n          } else if (true\n          /* DEBUG */\n          ) {\n            // In DEBUG, set the value to false explicitly. This way we can throw\n            // if someone attempts to call `isConst(memoized)` before running\n            // `memoized()` at least once.\n            IS_CONST_MAP.set(memoized, false);\n          }\n        }\n      } else {\n        consumeTag(tag);\n      }\n\n      return lastValue;\n    };\n\n    if (true\n    /* DEBUG */\n    ) {\n      IS_CONST_MAP.set(memoized, undefined);\n    }\n\n    return memoized;\n  }\n\n  function isConstMemo(memoized) {\n    if (true\n    /* DEBUG */\n    && IS_CONST_MAP.has(memoized) && IS_CONST_MAP.get(memoized) === undefined) {\n      throw new Error('Attempted to call `isConstMemo` on a memoized function, but the function has not been run at least once yet. You cannot know if a memoized function is constant or not until it has been run at least once. Call the function, then pass it to `isConstMemo`.');\n    }\n\n    return IS_CONST_MAP.get(memoized) === true;\n  } //////////\n\n\n  function track(callback, debuggingContext) {\n    beginTrackFrame();\n    var tag;\n\n    try {\n      if (true\n      /* DEBUG */\n      ) {\n        runInAutotrackingTransaction(callback, debuggingContext);\n      } else {\n        callback();\n      }\n    } finally {\n      tag = endTrackFrame();\n    }\n\n    return tag;\n  }\n\n  function consumeTag(tag) {\n    if (CURRENT_TRACKER !== null) {\n      CURRENT_TRACKER.add(tag);\n    }\n  }\n\n  function isTracking() {\n    return CURRENT_TRACKER !== null;\n  }\n\n  function untrack(callback) {\n    OPEN_TRACK_FRAMES.push(CURRENT_TRACKER);\n    CURRENT_TRACKER = null;\n\n    try {\n      callback();\n    } finally {\n      CURRENT_TRACKER = OPEN_TRACK_FRAMES.pop();\n    }\n  } //////////\n\n\n  var EPOCH = createTag();\n  _exports.EPOCH = EPOCH;\n\n  function trackedData(key, initializer) {\n    var values = new WeakMap();\n    var hasInitializer = typeof initializer === 'function';\n\n    function getter(self) {\n      consumeTag(tagFor(self, key));\n      var value; // If the field has never been initialized, we should initialize it\n\n      if (hasInitializer && !values.has(self)) {\n        value = initializer.call(self);\n        values.set(self, value);\n      } else {\n        value = values.get(self);\n      }\n\n      return value;\n    }\n\n    function setter(self, value) {\n      if (true\n      /* DEBUG */\n      ) {\n        assertTagNotConsumed(tagFor(self, key), self, key, true);\n      }\n\n      dirtyTag(EPOCH);\n      dirtyTagFor(self, key);\n      values.set(self, value);\n    }\n\n    return {\n      getter,\n      setter\n    };\n  }\n});","define(\"@glimmer/vm\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.isMachineOp = isMachineOp;\n  _exports.isOp = isOp;\n  _exports.isLowLevelRegister = isLowLevelRegister;\n  _exports.$v0 = _exports.$t1 = _exports.$t0 = _exports.$s1 = _exports.$s0 = _exports.$sp = _exports.$ra = _exports.$fp = _exports.$pc = _exports.TemporaryRegister = _exports.SavedRegister = void 0;\n\n  /* This file is generated by build/debug.js */\n  function isMachineOp(value) {\n    return value >= 0 && value <= 15;\n  }\n\n  function isOp(value) {\n    return value >= 16;\n  }\n  /**\n   * Registers\n   *\n   * For the most part, these follows MIPS naming conventions, however the\n   * register numbers are different.\n   */\n  // $0 or $pc (program counter): pointer into `program` for the next insturction; -1 means exit\n\n\n  var $pc = 0; // $1 or $ra (return address): pointer into `program` for the return\n\n  _exports.$pc = $pc;\n  var $ra = 1; // $2 or $fp (frame pointer): pointer into the `evalStack` for the base of the stack\n\n  _exports.$ra = $ra;\n  var $fp = 2; // $3 or $sp (stack pointer): pointer into the `evalStack` for the top of the stack\n\n  _exports.$fp = $fp;\n  var $sp = 3; // $4-$5 or $s0-$s1 (saved): callee saved general-purpose registers\n\n  _exports.$sp = $sp;\n  var $s0 = 4;\n  _exports.$s0 = $s0;\n  var $s1 = 5; // $6-$7 or $t0-$t1 (temporaries): caller saved general-purpose registers\n\n  _exports.$s1 = $s1;\n  var $t0 = 6;\n  _exports.$t0 = $t0;\n  var $t1 = 7; // $8 or $v0 (return value)\n\n  _exports.$t1 = $t1;\n  var $v0 = 8;\n  _exports.$v0 = $v0;\n\n  function isLowLevelRegister(register) {\n    return register <= $sp;\n  }\n\n  var SavedRegister;\n  _exports.SavedRegister = SavedRegister;\n\n  (function (SavedRegister) {\n    SavedRegister[SavedRegister[\"s0\"] = 4] = \"s0\";\n    SavedRegister[SavedRegister[\"s1\"] = 5] = \"s1\";\n  })(SavedRegister || (_exports.SavedRegister = SavedRegister = {}));\n\n  var TemporaryRegister;\n  _exports.TemporaryRegister = TemporaryRegister;\n\n  (function (TemporaryRegister) {\n    TemporaryRegister[TemporaryRegister[\"t0\"] = 6] = \"t0\";\n    TemporaryRegister[TemporaryRegister[\"t1\"] = 7] = \"t1\";\n  })(TemporaryRegister || (_exports.TemporaryRegister = TemporaryRegister = {}));\n});","define(\"@glimmer/wire-format\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.is = is;\n  _exports.isAttribute = isAttribute;\n  _exports.isArgument = isArgument;\n  _exports.isHelper = isHelper;\n  _exports.isGet = _exports.isFlushElement = void 0;\n\n  function is(variant) {\n    return function (value) {\n      return Array.isArray(value) && value[0] === variant;\n    };\n  } // Statements\n\n\n  var isFlushElement = is(12\n  /* FlushElement */\n  );\n  _exports.isFlushElement = isFlushElement;\n\n  function isAttribute(val) {\n    return val[0] === 14\n    /* StaticAttr */\n    || val[0] === 15\n    /* DynamicAttr */\n    || val[0] === 22\n    /* TrustingDynamicAttr */\n    || val[0] === 16\n    /* ComponentAttr */\n    || val[0] === 24\n    /* StaticComponentAttr */\n    || val[0] === 23\n    /* TrustingComponentAttr */\n    || val[0] === 17\n    /* AttrSplat */\n    || val[0] === 4\n    /* Modifier */\n    ;\n  }\n\n  function isArgument(val) {\n    return val[0] === 21\n    /* StaticArg */\n    || val[0] === 20\n    /* DynamicArg */\n    ;\n  }\n\n  function isHelper(expr) {\n    return Array.isArray(expr) && expr[0] === 30\n    /* Call */\n    ;\n  } // Expressions\n\n\n  var isGet = is(32\n  /* GetSymbol */\n  );\n  _exports.isGet = isGet;\n});","define(\"@simple-dom/document\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n  var EMPTY_ATTRS = [];\n\n  function indexOfAttribute(attributes, namespaceURI, localName) {\n    for (var i = 0; i < attributes.length; i++) {\n      var attr = attributes[i];\n\n      if (attr.namespaceURI === namespaceURI && attr.localName === localName) {\n        return i;\n      }\n    }\n\n    return -1;\n  }\n\n  function adjustAttrName(namespaceURI, localName) {\n    return namespaceURI === \"http://www.w3.org/1999/xhtml\"\n    /* HTML */\n    ? localName.toLowerCase() : localName;\n  }\n\n  function getAttribute(attributes, namespaceURI, localName) {\n    var index = indexOfAttribute(attributes, namespaceURI, localName);\n    return index === -1 ? null : attributes[index].value;\n  }\n\n  function removeAttribute(attributes, namespaceURI, localName) {\n    var index = indexOfAttribute(attributes, namespaceURI, localName);\n\n    if (index !== -1) {\n      attributes.splice(index, 1);\n    }\n  } // https://dom.spec.whatwg.org/#dom-element-setattributens\n\n\n  function setAttribute(element, namespaceURI, prefix, localName, value) {\n    if (typeof value !== 'string') {\n      value = '' + value;\n    }\n\n    var {\n      attributes\n    } = element;\n\n    if (attributes === EMPTY_ATTRS) {\n      attributes = element.attributes = [];\n    } else {\n      var index = indexOfAttribute(attributes, namespaceURI, localName);\n\n      if (index !== -1) {\n        attributes[index].value = value;\n        return;\n      }\n    }\n\n    attributes.push({\n      localName,\n      name: prefix === null ? localName : prefix + ':' + localName,\n      namespaceURI,\n      prefix,\n      specified: true,\n      value\n    });\n  }\n\n  class ChildNodes {\n    constructor(node) {\n      this.node = node;\n      this.stale = true;\n      this._length = 0;\n    }\n\n    get length() {\n      if (this.stale) {\n        this.stale = false;\n        var len = 0;\n        var child = this.node.firstChild;\n\n        for (; child !== null; len++) {\n          this[len] = child;\n          child = child.nextSibling;\n        }\n\n        var oldLen = this._length;\n        this._length = len;\n\n        for (; len < oldLen; len++) {\n          delete this[len];\n        }\n      }\n\n      return this._length;\n    }\n\n    item(index) {\n      return index < this.length ? this[index] : null;\n    }\n\n  }\n\n  function cloneNode(node, deep) {\n    var clone = nodeFrom(node);\n\n    if (deep) {\n      var child = node.firstChild;\n      var nextChild = child;\n\n      while (child !== null) {\n        nextChild = child.nextSibling;\n        clone.appendChild(child.cloneNode(true));\n        child = nextChild;\n      }\n    }\n\n    return clone;\n  }\n\n  function nodeFrom(node) {\n    var namespaceURI;\n\n    if (node.nodeType === 1\n    /* ELEMENT_NODE */\n    ) {\n        namespaceURI = node.namespaceURI;\n      }\n\n    var clone = new SimpleNodeImpl(node.ownerDocument, node.nodeType, node.nodeName, node.nodeValue, namespaceURI);\n\n    if (node.nodeType === 1\n    /* ELEMENT_NODE */\n    ) {\n        clone.attributes = copyAttrs(node.attributes);\n      }\n\n    return clone;\n  }\n\n  function copyAttrs(attrs) {\n    if (attrs === EMPTY_ATTRS) {\n      return EMPTY_ATTRS;\n    }\n\n    var copy = [];\n\n    for (var i = 0; i < attrs.length; i++) {\n      var attr = attrs[i];\n      copy.push({\n        localName: attr.localName,\n        name: attr.name,\n        namespaceURI: attr.namespaceURI,\n        prefix: attr.prefix,\n        specified: true,\n        value: attr.value\n      });\n    }\n\n    return copy;\n  }\n\n  function insertBefore(parentNode, newChild, refChild) {\n    invalidate(parentNode);\n    insertBetween(parentNode, newChild, refChild === null ? parentNode.lastChild : refChild.previousSibling, refChild);\n  }\n\n  function removeChild(parentNode, oldChild) {\n    invalidate(parentNode);\n    removeBetween(parentNode, oldChild, oldChild.previousSibling, oldChild.nextSibling);\n  }\n\n  function invalidate(parentNode) {\n    var childNodes = parentNode._childNodes;\n\n    if (childNodes !== undefined) {\n      childNodes.stale = true;\n    }\n  }\n\n  function insertBetween(parentNode, newChild, previousSibling, nextSibling) {\n    if (newChild.nodeType === 11\n    /* DOCUMENT_FRAGMENT_NODE */\n    ) {\n        insertFragment(newChild, parentNode, previousSibling, nextSibling);\n        return;\n      }\n\n    if (newChild.parentNode !== null) {\n      removeChild(newChild.parentNode, newChild);\n    }\n\n    newChild.parentNode = parentNode;\n    newChild.previousSibling = previousSibling;\n    newChild.nextSibling = nextSibling;\n\n    if (previousSibling === null) {\n      parentNode.firstChild = newChild;\n    } else {\n      previousSibling.nextSibling = newChild;\n    }\n\n    if (nextSibling === null) {\n      parentNode.lastChild = newChild;\n    } else {\n      nextSibling.previousSibling = newChild;\n    }\n  }\n\n  function removeBetween(parentNode, oldChild, previousSibling, nextSibling) {\n    oldChild.parentNode = null;\n    oldChild.previousSibling = null;\n    oldChild.nextSibling = null;\n\n    if (previousSibling === null) {\n      parentNode.firstChild = nextSibling;\n    } else {\n      previousSibling.nextSibling = nextSibling;\n    }\n\n    if (nextSibling === null) {\n      parentNode.lastChild = previousSibling;\n    } else {\n      nextSibling.previousSibling = previousSibling;\n    }\n  }\n\n  function insertFragment(fragment, parentNode, previousSibling, nextSibling) {\n    var firstChild = fragment.firstChild;\n\n    if (firstChild === null) {\n      return;\n    }\n\n    fragment.firstChild = null;\n    fragment.lastChild = null;\n    var lastChild = firstChild;\n    var newChild = firstChild;\n    firstChild.previousSibling = previousSibling;\n\n    if (previousSibling === null) {\n      parentNode.firstChild = firstChild;\n    } else {\n      previousSibling.nextSibling = firstChild;\n    }\n\n    while (newChild !== null) {\n      newChild.parentNode = parentNode;\n      lastChild = newChild;\n      newChild = newChild.nextSibling;\n    }\n\n    lastChild.nextSibling = nextSibling;\n\n    if (nextSibling === null) {\n      parentNode.lastChild = lastChild;\n    } else {\n      nextSibling.previousSibling = lastChild;\n    }\n  }\n\n  function parseQualifiedName(qualifiedName) {\n    var localName = qualifiedName;\n    var prefix = null;\n    var i = qualifiedName.indexOf(':');\n\n    if (i !== -1) {\n      prefix = qualifiedName.slice(0, i);\n      localName = qualifiedName.slice(i + 1);\n    }\n\n    return [prefix, localName];\n  }\n\n  class SimpleNodeImpl {\n    constructor(ownerDocument, nodeType, nodeName, nodeValue, namespaceURI) {\n      this.ownerDocument = ownerDocument;\n      this.nodeType = nodeType;\n      this.nodeName = nodeName;\n      this.nodeValue = nodeValue;\n      this.namespaceURI = namespaceURI;\n      this.parentNode = null;\n      this.previousSibling = null;\n      this.nextSibling = null;\n      this.firstChild = null;\n      this.lastChild = null;\n      this.attributes = EMPTY_ATTRS;\n      /**\n       * @internal\n       */\n\n      this._childNodes = undefined;\n    }\n\n    get tagName() {\n      return this.nodeName;\n    }\n\n    get childNodes() {\n      var children = this._childNodes;\n\n      if (children === undefined) {\n        children = this._childNodes = new ChildNodes(this);\n      }\n\n      return children;\n    }\n\n    cloneNode(deep) {\n      return cloneNode(this, deep === true);\n    }\n\n    appendChild(newChild) {\n      insertBefore(this, newChild, null);\n      return newChild;\n    }\n\n    insertBefore(newChild, refChild) {\n      insertBefore(this, newChild, refChild);\n      return newChild;\n    }\n\n    removeChild(oldChild) {\n      removeChild(this, oldChild);\n      return oldChild;\n    }\n\n    insertAdjacentHTML(position, html) {\n      var raw = new SimpleNodeImpl(this.ownerDocument, -1\n      /* RAW_NODE */\n      , '#raw', html, void 0);\n      var parentNode;\n      var nextSibling;\n\n      switch (position) {\n        case 'beforebegin':\n          parentNode = this.parentNode;\n          nextSibling = this;\n          break;\n\n        case 'afterbegin':\n          parentNode = this;\n          nextSibling = this.firstChild;\n          break;\n\n        case 'beforeend':\n          parentNode = this;\n          nextSibling = null;\n          break;\n\n        case 'afterend':\n          parentNode = this.parentNode;\n          nextSibling = this.nextSibling;\n          break;\n\n        default:\n          throw new Error('invalid position');\n      }\n\n      if (parentNode === null) {\n        throw new Error(`${position} requires a parentNode`);\n      }\n\n      insertBefore(parentNode, raw, nextSibling);\n    }\n\n    getAttribute(name) {\n      var localName = adjustAttrName(this.namespaceURI, name);\n      return getAttribute(this.attributes, null, localName);\n    }\n\n    getAttributeNS(namespaceURI, localName) {\n      return getAttribute(this.attributes, namespaceURI, localName);\n    }\n\n    setAttribute(name, value) {\n      var localName = adjustAttrName(this.namespaceURI, name);\n      setAttribute(this, null, null, localName, value);\n    }\n\n    setAttributeNS(namespaceURI, qualifiedName, value) {\n      var [prefix, localName] = parseQualifiedName(qualifiedName);\n      setAttribute(this, namespaceURI, prefix, localName, value);\n    }\n\n    removeAttribute(name) {\n      var localName = adjustAttrName(this.namespaceURI, name);\n      removeAttribute(this.attributes, null, localName);\n    }\n\n    removeAttributeNS(namespaceURI, localName) {\n      removeAttribute(this.attributes, namespaceURI, localName);\n    }\n\n    get doctype() {\n      return this.firstChild;\n    }\n\n    get documentElement() {\n      return this.lastChild;\n    }\n\n    get head() {\n      return this.documentElement.firstChild;\n    }\n\n    get body() {\n      return this.documentElement.lastChild;\n    }\n\n    createElement(name) {\n      return new SimpleNodeImpl(this, 1\n      /* ELEMENT_NODE */\n      , name.toUpperCase(), null, \"http://www.w3.org/1999/xhtml\"\n      /* HTML */\n      );\n    }\n\n    createElementNS(namespace, qualifiedName) {\n      // Node name is case-preserving in XML contexts, but returns canonical uppercase form in HTML contexts\n      // https://www.w3.org/TR/2004/REC-DOM-Level-3-Core-20040407/core.html#ID-104682815\n      var nodeName = namespace === \"http://www.w3.org/1999/xhtml\"\n      /* HTML */\n      ? qualifiedName.toUpperCase() : qualifiedName; // we don't care to parse the qualified name because we only support HTML documents\n      // which don't support prefixed elements\n\n      return new SimpleNodeImpl(this, 1\n      /* ELEMENT_NODE */\n      , nodeName, null, namespace);\n    }\n\n    createTextNode(text) {\n      return new SimpleNodeImpl(this, 3\n      /* TEXT_NODE */\n      , '#text', text, void 0);\n    }\n\n    createComment(text) {\n      return new SimpleNodeImpl(this, 8\n      /* COMMENT_NODE */\n      , '#comment', text, void 0);\n    }\n    /**\n     * Backwards compat\n     * @deprecated\n     */\n\n\n    createRawHTMLSection(text) {\n      return new SimpleNodeImpl(this, -1\n      /* RAW_NODE */\n      , '#raw', text, void 0);\n    }\n\n    createDocumentFragment() {\n      return new SimpleNodeImpl(this, 11\n      /* DOCUMENT_FRAGMENT_NODE */\n      , '#document-fragment', null, void 0);\n    }\n\n  }\n\n  function createHTMLDocument() {\n    // dom.d.ts types ownerDocument as Document but for a document ownerDocument is null\n    var document = new SimpleNodeImpl(null, 9\n    /* DOCUMENT_NODE */\n    , '#document', null, \"http://www.w3.org/1999/xhtml\"\n    /* HTML */\n    );\n    var doctype = new SimpleNodeImpl(document, 10\n    /* DOCUMENT_TYPE_NODE */\n    , 'html', null, \"http://www.w3.org/1999/xhtml\"\n    /* HTML */\n    );\n    var html = new SimpleNodeImpl(document, 1\n    /* ELEMENT_NODE */\n    , 'HTML', null, \"http://www.w3.org/1999/xhtml\"\n    /* HTML */\n    );\n    var head = new SimpleNodeImpl(document, 1\n    /* ELEMENT_NODE */\n    , 'HEAD', null, \"http://www.w3.org/1999/xhtml\"\n    /* HTML */\n    );\n    var body = new SimpleNodeImpl(document, 1\n    /* ELEMENT_NODE */\n    , 'BODY', null, \"http://www.w3.org/1999/xhtml\"\n    /* HTML */\n    );\n    html.appendChild(head);\n    html.appendChild(body);\n    document.appendChild(doctype);\n    document.appendChild(html);\n    return document;\n  }\n\n  var _default = createHTMLDocument;\n  _exports.default = _default;\n});","define(\"backburner\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.buildPlatform = buildPlatform;\n  _exports.default = void 0;\n  var SET_TIMEOUT = setTimeout;\n\n  var NOOP = () => {};\n\n  function buildNext(flush) {\n    // Using \"promises first\" here to:\n    //\n    // 1) Ensure more consistent experience on browsers that\n    //    have differently queued microtasks (separate queues for\n    //    MutationObserver vs Promises).\n    // 2) Ensure better debugging experiences (it shows up in Chrome\n    //    call stack as \"Promise.then (async)\") which is more consistent\n    //    with user expectations\n    //\n    // When Promise is unavailable use MutationObserver (mostly so that we\n    // still get microtasks on IE11), and when neither MutationObserver and\n    // Promise are present use a plain old setTimeout.\n    if (typeof Promise === 'function') {\n      var autorunPromise = Promise.resolve();\n      return () => autorunPromise.then(flush);\n    } else if (typeof MutationObserver === 'function') {\n      var iterations = 0;\n      var observer = new MutationObserver(flush);\n      var node = document.createTextNode('');\n      observer.observe(node, {\n        characterData: true\n      });\n      return () => {\n        iterations = ++iterations % 2;\n        node.data = '' + iterations;\n        return iterations;\n      };\n    } else {\n      return () => SET_TIMEOUT(flush, 0);\n    }\n  }\n\n  function buildPlatform(flush) {\n    var clearNext = NOOP;\n    return {\n      setTimeout(fn, ms) {\n        return setTimeout(fn, ms);\n      },\n\n      clearTimeout(timerId) {\n        return clearTimeout(timerId);\n      },\n\n      now() {\n        return Date.now();\n      },\n\n      next: buildNext(flush),\n      clearNext\n    };\n  }\n\n  var NUMBER = /\\d+/;\n  var TIMERS_OFFSET = 6;\n\n  function isCoercableNumber(suspect) {\n    var type = typeof suspect;\n    return type === 'number' && suspect === suspect || type === 'string' && NUMBER.test(suspect);\n  }\n\n  function getOnError(options) {\n    return options.onError || options.onErrorTarget && options.onErrorTarget[options.onErrorMethod];\n  }\n\n  function findItem(target, method, collection) {\n    var index = -1;\n\n    for (var i = 0, l = collection.length; i < l; i += 4) {\n      if (collection[i] === target && collection[i + 1] === method) {\n        index = i;\n        break;\n      }\n    }\n\n    return index;\n  }\n\n  function findTimerItem(target, method, collection) {\n    var index = -1;\n\n    for (var i = 2, l = collection.length; i < l; i += 6) {\n      if (collection[i] === target && collection[i + 1] === method) {\n        index = i - 2;\n        break;\n      }\n    }\n\n    return index;\n  }\n\n  function getQueueItems(items, queueItemLength, queueItemPositionOffset = 0) {\n    var queueItems = [];\n\n    for (var i = 0; i < items.length; i += queueItemLength) {\n      var maybeError = items[i + 3\n      /* stack */\n      + queueItemPositionOffset];\n      var queueItem = {\n        target: items[i + 0\n        /* target */\n        + queueItemPositionOffset],\n        method: items[i + 1\n        /* method */\n        + queueItemPositionOffset],\n        args: items[i + 2\n        /* args */\n        + queueItemPositionOffset],\n        stack: maybeError !== undefined && 'stack' in maybeError ? maybeError.stack : ''\n      };\n      queueItems.push(queueItem);\n    }\n\n    return queueItems;\n  }\n\n  function binarySearch(time, timers) {\n    var start = 0;\n    var end = timers.length - TIMERS_OFFSET;\n    var middle;\n    var l;\n\n    while (start < end) {\n      // since timers is an array of pairs 'l' will always\n      // be an integer\n      l = (end - start) / TIMERS_OFFSET; // compensate for the index in case even number\n      // of pairs inside timers\n\n      middle = start + l - l % TIMERS_OFFSET;\n\n      if (time >= timers[middle]) {\n        start = middle + TIMERS_OFFSET;\n      } else {\n        end = middle;\n      }\n    }\n\n    return time >= timers[start] ? start + TIMERS_OFFSET : start;\n  }\n\n  var QUEUE_ITEM_LENGTH = 4;\n\n  class Queue {\n    constructor(name, options = {}, globalOptions = {}) {\n      this._queueBeingFlushed = [];\n      this.targetQueues = new Map();\n      this.index = 0;\n      this._queue = [];\n      this.name = name;\n      this.options = options;\n      this.globalOptions = globalOptions;\n    }\n\n    stackFor(index) {\n      if (index < this._queue.length) {\n        var entry = this._queue[index * 3 + QUEUE_ITEM_LENGTH];\n\n        if (entry) {\n          return entry.stack;\n        } else {\n          return null;\n        }\n      }\n    }\n\n    flush(sync) {\n      var {\n        before,\n        after\n      } = this.options;\n      var target;\n      var method;\n      var args;\n      var errorRecordedForStack;\n      this.targetQueues.clear();\n\n      if (this._queueBeingFlushed.length === 0) {\n        this._queueBeingFlushed = this._queue;\n        this._queue = [];\n      }\n\n      if (before !== undefined) {\n        before();\n      }\n\n      var invoke;\n      var queueItems = this._queueBeingFlushed;\n\n      if (queueItems.length > 0) {\n        var onError = getOnError(this.globalOptions);\n        invoke = onError ? this.invokeWithOnError : this.invoke;\n\n        for (var i = this.index; i < queueItems.length; i += QUEUE_ITEM_LENGTH) {\n          this.index += QUEUE_ITEM_LENGTH;\n          method = queueItems[i + 1]; // method could have been nullified / canceled during flush\n\n          if (method !== null) {\n            //\n            //    ** Attention intrepid developer **\n            //\n            //    To find out the stack of this task when it was scheduled onto\n            //    the run loop, add the following to your app.js:\n            //\n            //    Ember.run.backburner.DEBUG = true; // NOTE: This slows your app, don't leave it on in production.\n            //\n            //    Once that is in place, when you are at a breakpoint and navigate\n            //    here in the stack explorer, you can look at `errorRecordedForStack.stack`,\n            //    which will be the captured stack when this job was scheduled.\n            //\n            //    One possible long-term solution is the following Chrome issue:\n            //       https://bugs.chromium.org/p/chromium/issues/detail?id=332624\n            //\n            target = queueItems[i];\n            args = queueItems[i + 2];\n            errorRecordedForStack = queueItems[i + 3]; // Debugging assistance\n\n            invoke(target, method, args, onError, errorRecordedForStack);\n          }\n\n          if (this.index !== this._queueBeingFlushed.length && this.globalOptions.mustYield && this.globalOptions.mustYield()) {\n            return 1\n            /* Pause */\n            ;\n          }\n        }\n      }\n\n      if (after !== undefined) {\n        after();\n      }\n\n      this._queueBeingFlushed.length = 0;\n      this.index = 0;\n\n      if (sync !== false && this._queue.length > 0) {\n        // check if new items have been added\n        this.flush(true);\n      }\n    }\n\n    hasWork() {\n      return this._queueBeingFlushed.length > 0 || this._queue.length > 0;\n    }\n\n    cancel({\n      target,\n      method\n    }) {\n      var queue = this._queue;\n      var targetQueueMap = this.targetQueues.get(target);\n\n      if (targetQueueMap !== undefined) {\n        targetQueueMap.delete(method);\n      }\n\n      var index = findItem(target, method, queue);\n\n      if (index > -1) {\n        queue.splice(index, QUEUE_ITEM_LENGTH);\n        return true;\n      } // if not found in current queue\n      // could be in the queue that is being flushed\n\n\n      queue = this._queueBeingFlushed;\n      index = findItem(target, method, queue);\n\n      if (index > -1) {\n        queue[index + 1] = null;\n        return true;\n      }\n\n      return false;\n    }\n\n    push(target, method, args, stack) {\n      this._queue.push(target, method, args, stack);\n\n      return {\n        queue: this,\n        target,\n        method\n      };\n    }\n\n    pushUnique(target, method, args, stack) {\n      var localQueueMap = this.targetQueues.get(target);\n\n      if (localQueueMap === undefined) {\n        localQueueMap = new Map();\n        this.targetQueues.set(target, localQueueMap);\n      }\n\n      var index = localQueueMap.get(method);\n\n      if (index === undefined) {\n        var queueIndex = this._queue.push(target, method, args, stack) - QUEUE_ITEM_LENGTH;\n        localQueueMap.set(method, queueIndex);\n      } else {\n        var queue = this._queue;\n        queue[index + 2] = args; // replace args\n\n        queue[index + 3] = stack; // replace stack\n      }\n\n      return {\n        queue: this,\n        target,\n        method\n      };\n    }\n\n    _getDebugInfo(debugEnabled) {\n      if (debugEnabled) {\n        var debugInfo = getQueueItems(this._queue, QUEUE_ITEM_LENGTH);\n        return debugInfo;\n      }\n\n      return undefined;\n    }\n\n    invoke(target, method, args\n    /*, onError, errorRecordedForStack */\n    ) {\n      if (args === undefined) {\n        method.call(target);\n      } else {\n        method.apply(target, args);\n      }\n    }\n\n    invokeWithOnError(target, method, args, onError, errorRecordedForStack) {\n      try {\n        if (args === undefined) {\n          method.call(target);\n        } else {\n          method.apply(target, args);\n        }\n      } catch (error) {\n        onError(error, errorRecordedForStack);\n      }\n    }\n\n  }\n\n  class DeferredActionQueues {\n    constructor(queueNames = [], options) {\n      this.queues = {};\n      this.queueNameIndex = 0;\n      this.queueNames = queueNames;\n      queueNames.reduce(function (queues, queueName) {\n        queues[queueName] = new Queue(queueName, options[queueName], options);\n        return queues;\n      }, this.queues);\n    }\n    /**\n     * @method schedule\n     * @param {String} queueName\n     * @param {Any} target\n     * @param {Any} method\n     * @param {Any} args\n     * @param {Boolean} onceFlag\n     * @param {Any} stack\n     * @return queue\n     */\n\n\n    schedule(queueName, target, method, args, onceFlag, stack) {\n      var queues = this.queues;\n      var queue = queues[queueName];\n\n      if (queue === undefined) {\n        throw new Error(`You attempted to schedule an action in a queue (${queueName}) that doesn\\'t exist`);\n      }\n\n      if (method === undefined || method === null) {\n        throw new Error(`You attempted to schedule an action in a queue (${queueName}) for a method that doesn\\'t exist`);\n      }\n\n      this.queueNameIndex = 0;\n\n      if (onceFlag) {\n        return queue.pushUnique(target, method, args, stack);\n      } else {\n        return queue.push(target, method, args, stack);\n      }\n    }\n    /**\n     * DeferredActionQueues.flush() calls Queue.flush()\n     *\n     * @method flush\n     * @param {Boolean} fromAutorun\n     */\n\n\n    flush(fromAutorun = false) {\n      var queue;\n      var queueName;\n      var numberOfQueues = this.queueNames.length;\n\n      while (this.queueNameIndex < numberOfQueues) {\n        queueName = this.queueNames[this.queueNameIndex];\n        queue = this.queues[queueName];\n\n        if (queue.hasWork() === false) {\n          this.queueNameIndex++;\n\n          if (fromAutorun && this.queueNameIndex < numberOfQueues) {\n            return 1\n            /* Pause */\n            ;\n          }\n        } else {\n          if (queue.flush(false\n          /* async */\n          ) === 1\n          /* Pause */\n          ) {\n              return 1\n              /* Pause */\n              ;\n            }\n        }\n      }\n    }\n    /**\n     * Returns debug information for the current queues.\n     *\n     * @method _getDebugInfo\n     * @param {Boolean} debugEnabled\n     * @returns {IDebugInfo | undefined}\n     */\n\n\n    _getDebugInfo(debugEnabled) {\n      if (debugEnabled) {\n        var debugInfo = {};\n        var queue;\n        var queueName;\n        var numberOfQueues = this.queueNames.length;\n        var i = 0;\n\n        while (i < numberOfQueues) {\n          queueName = this.queueNames[i];\n          queue = this.queues[queueName];\n          debugInfo[queueName] = queue._getDebugInfo(debugEnabled);\n          i++;\n        }\n\n        return debugInfo;\n      }\n\n      return;\n    }\n\n  }\n\n  function iteratorDrain(fn) {\n    var iterator = fn();\n    var result = iterator.next();\n\n    while (result.done === false) {\n      result.value();\n      result = iterator.next();\n    }\n  }\n\n  var noop = function () {};\n\n  var DISABLE_SCHEDULE = Object.freeze([]);\n\n  function parseArgs() {\n    var length = arguments.length;\n    var args;\n    var method;\n    var target;\n\n    if (length === 0) {} else if (length === 1) {\n      target = null;\n      method = arguments[0];\n    } else {\n      var argsIndex = 2;\n      var methodOrTarget = arguments[0];\n      var methodOrArgs = arguments[1];\n      var type = typeof methodOrArgs;\n\n      if (type === 'function') {\n        target = methodOrTarget;\n        method = methodOrArgs;\n      } else if (methodOrTarget !== null && type === 'string' && methodOrArgs in methodOrTarget) {\n        target = methodOrTarget;\n        method = target[methodOrArgs];\n      } else if (typeof methodOrTarget === 'function') {\n        argsIndex = 1;\n        target = null;\n        method = methodOrTarget;\n      }\n\n      if (length > argsIndex) {\n        var len = length - argsIndex;\n        args = new Array(len);\n\n        for (var i = 0; i < len; i++) {\n          args[i] = arguments[i + argsIndex];\n        }\n      }\n    }\n\n    return [target, method, args];\n  }\n\n  function parseTimerArgs() {\n    var [target, method, args] = parseArgs(...arguments);\n    var wait = 0;\n    var length = args !== undefined ? args.length : 0;\n\n    if (length > 0) {\n      var last = args[length - 1];\n\n      if (isCoercableNumber(last)) {\n        wait = parseInt(args.pop(), 10);\n      }\n    }\n\n    return [target, method, args, wait];\n  }\n\n  function parseDebounceArgs() {\n    var target;\n    var method;\n    var isImmediate;\n    var args;\n    var wait;\n\n    if (arguments.length === 2) {\n      method = arguments[0];\n      wait = arguments[1];\n      target = null;\n    } else {\n      [target, method, args] = parseArgs(...arguments);\n\n      if (args === undefined) {\n        wait = 0;\n      } else {\n        wait = args.pop();\n\n        if (!isCoercableNumber(wait)) {\n          isImmediate = wait === true;\n          wait = args.pop();\n        }\n      }\n    }\n\n    wait = parseInt(wait, 10);\n    return [target, method, args, wait, isImmediate];\n  }\n\n  var UUID = 0;\n  var beginCount = 0;\n  var endCount = 0;\n  var beginEventCount = 0;\n  var endEventCount = 0;\n  var runCount = 0;\n  var joinCount = 0;\n  var deferCount = 0;\n  var scheduleCount = 0;\n  var scheduleIterableCount = 0;\n  var deferOnceCount = 0;\n  var scheduleOnceCount = 0;\n  var setTimeoutCount = 0;\n  var laterCount = 0;\n  var throttleCount = 0;\n  var debounceCount = 0;\n  var cancelTimersCount = 0;\n  var cancelCount = 0;\n  var autorunsCreatedCount = 0;\n  var autorunsCompletedCount = 0;\n  var deferredActionQueuesCreatedCount = 0;\n  var nestedDeferredActionQueuesCreated = 0;\n\n  class Backburner {\n    constructor(queueNames, options) {\n      this.DEBUG = false;\n      this.currentInstance = null;\n      this.instanceStack = [];\n      this._eventCallbacks = {\n        end: [],\n        begin: []\n      };\n      this._timerTimeoutId = null;\n      this._timers = [];\n      this._autorun = false;\n      this._autorunStack = null;\n      this.queueNames = queueNames;\n      this.options = options || {};\n\n      if (typeof this.options.defaultQueue === 'string') {\n        this._defaultQueue = this.options.defaultQueue;\n      } else {\n        this._defaultQueue = this.queueNames[0];\n      }\n\n      this._onBegin = this.options.onBegin || noop;\n      this._onEnd = this.options.onEnd || noop;\n      this._boundRunExpiredTimers = this._runExpiredTimers.bind(this);\n\n      this._boundAutorunEnd = () => {\n        autorunsCompletedCount++; // if the autorun was already flushed, do nothing\n\n        if (this._autorun === false) {\n          return;\n        }\n\n        this._autorun = false;\n        this._autorunStack = null;\n\n        this._end(true\n        /* fromAutorun */\n        );\n      };\n\n      var builder = this.options._buildPlatform || buildPlatform;\n      this._platform = builder(this._boundAutorunEnd);\n    }\n\n    get counters() {\n      return {\n        begin: beginCount,\n        end: endCount,\n        events: {\n          begin: beginEventCount,\n          end: endEventCount\n        },\n        autoruns: {\n          created: autorunsCreatedCount,\n          completed: autorunsCompletedCount\n        },\n        run: runCount,\n        join: joinCount,\n        defer: deferCount,\n        schedule: scheduleCount,\n        scheduleIterable: scheduleIterableCount,\n        deferOnce: deferOnceCount,\n        scheduleOnce: scheduleOnceCount,\n        setTimeout: setTimeoutCount,\n        later: laterCount,\n        throttle: throttleCount,\n        debounce: debounceCount,\n        cancelTimers: cancelTimersCount,\n        cancel: cancelCount,\n        loops: {\n          total: deferredActionQueuesCreatedCount,\n          nested: nestedDeferredActionQueuesCreated\n        }\n      };\n    }\n\n    get defaultQueue() {\n      return this._defaultQueue;\n    }\n    /*\n      @method begin\n      @return instantiated class DeferredActionQueues\n    */\n\n\n    begin() {\n      beginCount++;\n      var options = this.options;\n      var previousInstance = this.currentInstance;\n      var current;\n\n      if (this._autorun !== false) {\n        current = previousInstance;\n\n        this._cancelAutorun();\n      } else {\n        if (previousInstance !== null) {\n          nestedDeferredActionQueuesCreated++;\n          this.instanceStack.push(previousInstance);\n        }\n\n        deferredActionQueuesCreatedCount++;\n        current = this.currentInstance = new DeferredActionQueues(this.queueNames, options);\n        beginEventCount++;\n\n        this._trigger('begin', current, previousInstance);\n      }\n\n      this._onBegin(current, previousInstance);\n\n      return current;\n    }\n\n    end() {\n      endCount++;\n\n      this._end(false);\n    }\n\n    on(eventName, callback) {\n      if (typeof callback !== 'function') {\n        throw new TypeError(`Callback must be a function`);\n      }\n\n      var callbacks = this._eventCallbacks[eventName];\n\n      if (callbacks !== undefined) {\n        callbacks.push(callback);\n      } else {\n        throw new TypeError(`Cannot on() event ${eventName} because it does not exist`);\n      }\n    }\n\n    off(eventName, callback) {\n      var callbacks = this._eventCallbacks[eventName];\n\n      if (!eventName || callbacks === undefined) {\n        throw new TypeError(`Cannot off() event ${eventName} because it does not exist`);\n      }\n\n      var callbackFound = false;\n\n      if (callback) {\n        for (var i = 0; i < callbacks.length; i++) {\n          if (callbacks[i] === callback) {\n            callbackFound = true;\n            callbacks.splice(i, 1);\n            i--;\n          }\n        }\n      }\n\n      if (!callbackFound) {\n        throw new TypeError(`Cannot off() callback that does not exist`);\n      }\n    }\n\n    run() {\n      runCount++;\n      var [target, method, args] = parseArgs(...arguments);\n      return this._run(target, method, args);\n    }\n\n    join() {\n      joinCount++;\n      var [target, method, args] = parseArgs(...arguments);\n      return this._join(target, method, args);\n    }\n    /**\n     * @deprecated please use schedule instead.\n     */\n\n\n    defer(queueName, target, method, ...args) {\n      deferCount++;\n      return this.schedule(queueName, target, method, ...args);\n    }\n\n    schedule(queueName, ..._args) {\n      scheduleCount++;\n      var [target, method, args] = parseArgs(..._args);\n      var stack = this.DEBUG ? new Error() : undefined;\n      return this._ensureInstance().schedule(queueName, target, method, args, false, stack);\n    }\n    /*\n      Defer the passed iterable of functions to run inside the specified queue.\n         @method scheduleIterable\n      @param {String} queueName\n      @param {Iterable} an iterable of functions to execute\n      @return method result\n    */\n\n\n    scheduleIterable(queueName, iterable) {\n      scheduleIterableCount++;\n      var stack = this.DEBUG ? new Error() : undefined;\n      return this._ensureInstance().schedule(queueName, null, iteratorDrain, [iterable], false, stack);\n    }\n    /**\n     * @deprecated please use scheduleOnce instead.\n     */\n\n\n    deferOnce(queueName, target, method, ...args) {\n      deferOnceCount++;\n      return this.scheduleOnce(queueName, target, method, ...args);\n    }\n\n    scheduleOnce(queueName, ..._args) {\n      scheduleOnceCount++;\n      var [target, method, args] = parseArgs(..._args);\n      var stack = this.DEBUG ? new Error() : undefined;\n      return this._ensureInstance().schedule(queueName, target, method, args, true, stack);\n    }\n\n    setTimeout() {\n      setTimeoutCount++;\n      return this.later(...arguments);\n    }\n\n    later() {\n      laterCount++;\n      var [target, method, args, wait] = parseTimerArgs(...arguments);\n      return this._later(target, method, args, wait);\n    }\n\n    throttle() {\n      throttleCount++;\n      var [target, method, args, wait, isImmediate = true] = parseDebounceArgs(...arguments);\n      var index = findTimerItem(target, method, this._timers);\n      var timerId;\n\n      if (index === -1) {\n        timerId = this._later(target, method, isImmediate ? DISABLE_SCHEDULE : args, wait);\n\n        if (isImmediate) {\n          this._join(target, method, args);\n        }\n      } else {\n        timerId = this._timers[index + 1];\n        var argIndex = index + 4;\n\n        if (this._timers[argIndex] !== DISABLE_SCHEDULE) {\n          this._timers[argIndex] = args;\n        }\n      }\n\n      return timerId;\n    }\n\n    debounce() {\n      debounceCount++;\n      var [target, method, args, wait, isImmediate = false] = parseDebounceArgs(...arguments);\n      var _timers = this._timers;\n      var index = findTimerItem(target, method, _timers);\n      var timerId;\n\n      if (index === -1) {\n        timerId = this._later(target, method, isImmediate ? DISABLE_SCHEDULE : args, wait);\n\n        if (isImmediate) {\n          this._join(target, method, args);\n        }\n      } else {\n        var executeAt = this._platform.now() + wait;\n        var argIndex = index + 4;\n\n        if (_timers[argIndex] === DISABLE_SCHEDULE) {\n          args = DISABLE_SCHEDULE;\n        }\n\n        timerId = _timers[index + 1];\n        var i = binarySearch(executeAt, _timers);\n\n        if (index + TIMERS_OFFSET === i) {\n          _timers[index] = executeAt;\n          _timers[argIndex] = args;\n        } else {\n          var stack = this._timers[index + 5];\n\n          this._timers.splice(i, 0, executeAt, timerId, target, method, args, stack);\n\n          this._timers.splice(index, TIMERS_OFFSET);\n        }\n\n        if (index === 0) {\n          this._reinstallTimerTimeout();\n        }\n      }\n\n      return timerId;\n    }\n\n    cancelTimers() {\n      cancelTimersCount++;\n\n      this._clearTimerTimeout();\n\n      this._timers = [];\n\n      this._cancelAutorun();\n    }\n\n    hasTimers() {\n      return this._timers.length > 0 || this._autorun;\n    }\n\n    cancel(timer) {\n      cancelCount++;\n\n      if (timer === null || timer === undefined) {\n        return false;\n      }\n\n      var timerType = typeof timer;\n\n      if (timerType === 'number') {\n        // we're cancelling a setTimeout or throttle or debounce\n        return this._cancelLaterTimer(timer);\n      } else if (timerType === 'object' && timer.queue && timer.method) {\n        // we're cancelling a deferOnce\n        return timer.queue.cancel(timer);\n      }\n\n      return false;\n    }\n\n    ensureInstance() {\n      this._ensureInstance();\n    }\n    /**\n     * Returns debug information related to the current instance of Backburner\n     *\n     * @method getDebugInfo\n     * @returns {Object | undefined} Will return and Object containing debug information if\n     * the DEBUG flag is set to true on the current instance of Backburner, else undefined.\n     */\n\n\n    getDebugInfo() {\n      if (this.DEBUG) {\n        return {\n          autorun: this._autorunStack,\n          counters: this.counters,\n          timers: getQueueItems(this._timers, TIMERS_OFFSET, 2),\n          instanceStack: [this.currentInstance, ...this.instanceStack].map(deferredActionQueue => deferredActionQueue && deferredActionQueue._getDebugInfo(this.DEBUG))\n        };\n      }\n\n      return undefined;\n    }\n\n    _end(fromAutorun) {\n      var currentInstance = this.currentInstance;\n      var nextInstance = null;\n\n      if (currentInstance === null) {\n        throw new Error(`end called without begin`);\n      } // Prevent double-finally bug in Safari 6.0.2 and iOS 6\n      // This bug appears to be resolved in Safari 6.0.5 and iOS 7\n\n\n      var finallyAlreadyCalled = false;\n      var result;\n\n      try {\n        result = currentInstance.flush(fromAutorun);\n      } finally {\n        if (!finallyAlreadyCalled) {\n          finallyAlreadyCalled = true;\n\n          if (result === 1\n          /* Pause */\n          ) {\n              var plannedNextQueue = this.queueNames[currentInstance.queueNameIndex];\n\n              this._scheduleAutorun(plannedNextQueue);\n            } else {\n            this.currentInstance = null;\n\n            if (this.instanceStack.length > 0) {\n              nextInstance = this.instanceStack.pop();\n              this.currentInstance = nextInstance;\n            }\n\n            this._trigger('end', currentInstance, nextInstance);\n\n            this._onEnd(currentInstance, nextInstance);\n          }\n        }\n      }\n    }\n\n    _join(target, method, args) {\n      if (this.currentInstance === null) {\n        return this._run(target, method, args);\n      }\n\n      if (target === undefined && args === undefined) {\n        return method();\n      } else {\n        return method.apply(target, args);\n      }\n    }\n\n    _run(target, method, args) {\n      var onError = getOnError(this.options);\n      this.begin();\n\n      if (onError) {\n        try {\n          return method.apply(target, args);\n        } catch (error) {\n          onError(error);\n        } finally {\n          this.end();\n        }\n      } else {\n        try {\n          return method.apply(target, args);\n        } finally {\n          this.end();\n        }\n      }\n    }\n\n    _cancelAutorun() {\n      if (this._autorun) {\n        this._platform.clearNext();\n\n        this._autorun = false;\n        this._autorunStack = null;\n      }\n    }\n\n    _later(target, method, args, wait) {\n      var stack = this.DEBUG ? new Error() : undefined;\n      var executeAt = this._platform.now() + wait;\n      var id = UUID++;\n\n      if (this._timers.length === 0) {\n        this._timers.push(executeAt, id, target, method, args, stack);\n\n        this._installTimerTimeout();\n      } else {\n        // find position to insert\n        var i = binarySearch(executeAt, this._timers);\n\n        this._timers.splice(i, 0, executeAt, id, target, method, args, stack); // always reinstall since it could be out of sync\n\n\n        this._reinstallTimerTimeout();\n      }\n\n      return id;\n    }\n\n    _cancelLaterTimer(timer) {\n      for (var i = 1; i < this._timers.length; i += TIMERS_OFFSET) {\n        if (this._timers[i] === timer) {\n          this._timers.splice(i - 1, TIMERS_OFFSET);\n\n          if (i === 1) {\n            this._reinstallTimerTimeout();\n          }\n\n          return true;\n        }\n      }\n\n      return false;\n    }\n    /**\n     Trigger an event. Supports up to two arguments. Designed around\n     triggering transition events from one run loop instance to the\n     next, which requires an argument for the  instance and then\n     an argument for the next instance.\n        @private\n     @method _trigger\n     @param {String} eventName\n     @param {any} arg1\n     @param {any} arg2\n     */\n\n\n    _trigger(eventName, arg1, arg2) {\n      var callbacks = this._eventCallbacks[eventName];\n\n      if (callbacks !== undefined) {\n        for (var i = 0; i < callbacks.length; i++) {\n          callbacks[i](arg1, arg2);\n        }\n      }\n    }\n\n    _runExpiredTimers() {\n      this._timerTimeoutId = null;\n\n      if (this._timers.length > 0) {\n        this.begin();\n\n        this._scheduleExpiredTimers();\n\n        this.end();\n      }\n    }\n\n    _scheduleExpiredTimers() {\n      var timers = this._timers;\n      var i = 0;\n      var l = timers.length;\n      var defaultQueue = this._defaultQueue;\n\n      var n = this._platform.now();\n\n      for (; i < l; i += TIMERS_OFFSET) {\n        var executeAt = timers[i];\n\n        if (executeAt > n) {\n          break;\n        }\n\n        var args = timers[i + 4];\n\n        if (args !== DISABLE_SCHEDULE) {\n          var target = timers[i + 2];\n          var method = timers[i + 3];\n          var stack = timers[i + 5];\n          this.currentInstance.schedule(defaultQueue, target, method, args, false, stack);\n        }\n      }\n\n      timers.splice(0, i);\n\n      this._installTimerTimeout();\n    }\n\n    _reinstallTimerTimeout() {\n      this._clearTimerTimeout();\n\n      this._installTimerTimeout();\n    }\n\n    _clearTimerTimeout() {\n      if (this._timerTimeoutId === null) {\n        return;\n      }\n\n      this._platform.clearTimeout(this._timerTimeoutId);\n\n      this._timerTimeoutId = null;\n    }\n\n    _installTimerTimeout() {\n      if (this._timers.length === 0) {\n        return;\n      }\n\n      var minExpiresAt = this._timers[0];\n\n      var n = this._platform.now();\n\n      var wait = Math.max(0, minExpiresAt - n);\n      this._timerTimeoutId = this._platform.setTimeout(this._boundRunExpiredTimers, wait);\n    }\n\n    _ensureInstance() {\n      var currentInstance = this.currentInstance;\n\n      if (currentInstance === null) {\n        this._autorunStack = this.DEBUG ? new Error() : undefined;\n        currentInstance = this.begin();\n\n        this._scheduleAutorun(this.queueNames[0]);\n      }\n\n      return currentInstance;\n    }\n\n    _scheduleAutorun(plannedNextQueue) {\n      autorunsCreatedCount++;\n      var next = this._platform.next;\n      var flush = this.options.flush;\n\n      if (flush) {\n        flush(plannedNextQueue, next);\n      } else {\n        next();\n      }\n\n      this._autorun = true;\n    }\n\n  }\n\n  Backburner.Queue = Queue;\n  Backburner.buildPlatform = buildPlatform;\n  Backburner.buildNext = buildNext;\n  var _default = Backburner;\n  _exports.default = _default;\n});","define(\"dag-map\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n   * A topologically ordered map of key/value pairs with a simple API for adding constraints.\n   *\n   * Edges can forward reference keys that have not been added yet (the forward reference will\n   * map the key to undefined).\n   */\n  var DAG = function () {\n    function DAG() {\n      this._vertices = new Vertices();\n    }\n    /**\n     * Adds a key/value pair with dependencies on other key/value pairs.\n     *\n     * @public\n     * @param key    The key of the vertex to be added.\n     * @param value  The value of that vertex.\n     * @param before A key or array of keys of the vertices that must\n     *               be visited before this vertex.\n     * @param after  An string or array of strings with the keys of the\n     *               vertices that must be after this vertex is visited.\n     */\n\n\n    DAG.prototype.add = function (key, value, before, after) {\n      if (!key) throw new Error('argument `key` is required');\n      var vertices = this._vertices;\n      var v = vertices.add(key);\n      v.val = value;\n\n      if (before) {\n        if (typeof before === \"string\") {\n          vertices.addEdge(v, vertices.add(before));\n        } else {\n          for (var i = 0; i < before.length; i++) {\n            vertices.addEdge(v, vertices.add(before[i]));\n          }\n        }\n      }\n\n      if (after) {\n        if (typeof after === \"string\") {\n          vertices.addEdge(vertices.add(after), v);\n        } else {\n          for (var i = 0; i < after.length; i++) {\n            vertices.addEdge(vertices.add(after[i]), v);\n          }\n        }\n      }\n    };\n    /**\n     * @deprecated please use add.\n     */\n\n\n    DAG.prototype.addEdges = function (key, value, before, after) {\n      this.add(key, value, before, after);\n    };\n    /**\n     * Visits key/value pairs in topological order.\n     *\n     * @public\n     * @param callback The function to be invoked with each key/value.\n     */\n\n\n    DAG.prototype.each = function (callback) {\n      this._vertices.walk(callback);\n    };\n    /**\n     * @deprecated please use each.\n     */\n\n\n    DAG.prototype.topsort = function (callback) {\n      this.each(callback);\n    };\n\n    return DAG;\n  }();\n\n  var _default = DAG;\n  /** @private */\n\n  _exports.default = _default;\n\n  var Vertices = function () {\n    function Vertices() {\n      this.length = 0;\n      this.stack = new IntStack();\n      this.path = new IntStack();\n      this.result = new IntStack();\n    }\n\n    Vertices.prototype.add = function (key) {\n      if (!key) throw new Error(\"missing key\");\n      var l = this.length | 0;\n      var vertex;\n\n      for (var i = 0; i < l; i++) {\n        vertex = this[i];\n        if (vertex.key === key) return vertex;\n      }\n\n      this.length = l + 1;\n      return this[l] = {\n        idx: l,\n        key: key,\n        val: undefined,\n        out: false,\n        flag: false,\n        length: 0\n      };\n    };\n\n    Vertices.prototype.addEdge = function (v, w) {\n      this.check(v, w.key);\n      var l = w.length | 0;\n\n      for (var i = 0; i < l; i++) {\n        if (w[i] === v.idx) return;\n      }\n\n      w.length = l + 1;\n      w[l] = v.idx;\n      v.out = true;\n    };\n\n    Vertices.prototype.walk = function (cb) {\n      this.reset();\n\n      for (var i = 0; i < this.length; i++) {\n        var vertex = this[i];\n        if (vertex.out) continue;\n        this.visit(vertex, \"\");\n      }\n\n      this.each(this.result, cb);\n    };\n\n    Vertices.prototype.check = function (v, w) {\n      if (v.key === w) {\n        throw new Error(\"cycle detected: \" + w + \" <- \" + w);\n      } // quick check\n\n\n      if (v.length === 0) return; // shallow check\n\n      for (var i = 0; i < v.length; i++) {\n        var key = this[v[i]].key;\n\n        if (key === w) {\n          throw new Error(\"cycle detected: \" + w + \" <- \" + v.key + \" <- \" + w);\n        }\n      } // deep check\n\n\n      this.reset();\n      this.visit(v, w);\n\n      if (this.path.length > 0) {\n        var msg_1 = \"cycle detected: \" + w;\n        this.each(this.path, function (key) {\n          msg_1 += \" <- \" + key;\n        });\n        throw new Error(msg_1);\n      }\n    };\n\n    Vertices.prototype.reset = function () {\n      this.stack.length = 0;\n      this.path.length = 0;\n      this.result.length = 0;\n\n      for (var i = 0, l = this.length; i < l; i++) {\n        this[i].flag = false;\n      }\n    };\n\n    Vertices.prototype.visit = function (start, search) {\n      var _a = this,\n          stack = _a.stack,\n          path = _a.path,\n          result = _a.result;\n\n      stack.push(start.idx);\n\n      while (stack.length) {\n        var index = stack.pop() | 0;\n\n        if (index >= 0) {\n          // enter\n          var vertex = this[index];\n          if (vertex.flag) continue;\n          vertex.flag = true;\n          path.push(index);\n          if (search === vertex.key) break; // push exit\n\n          stack.push(~index);\n          this.pushIncoming(vertex);\n        } else {\n          // exit\n          path.pop();\n          result.push(~index);\n        }\n      }\n    };\n\n    Vertices.prototype.pushIncoming = function (incomming) {\n      var stack = this.stack;\n\n      for (var i = incomming.length - 1; i >= 0; i--) {\n        var index = incomming[i];\n\n        if (!this[index].flag) {\n          stack.push(index);\n        }\n      }\n    };\n\n    Vertices.prototype.each = function (indices, cb) {\n      for (var i = 0, l = indices.length; i < l; i++) {\n        var vertex = this[indices[i]];\n        cb(vertex.key, vertex.val);\n      }\n    };\n\n    return Vertices;\n  }();\n  /** @private */\n\n\n  var IntStack = function () {\n    function IntStack() {\n      this.length = 0;\n    }\n\n    IntStack.prototype.push = function (n) {\n      this[this.length++] = n | 0;\n    };\n\n    IntStack.prototype.pop = function () {\n      return this[--this.length] | 0;\n    };\n\n    return IntStack;\n  }();\n});","define(\"ember-babel\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.wrapNativeSuper = wrapNativeSuper;\n  _exports.classCallCheck = classCallCheck;\n  _exports.inheritsLoose = inheritsLoose;\n  _exports.taggedTemplateLiteralLoose = taggedTemplateLiteralLoose;\n  _exports.createClass = createClass;\n  _exports.assertThisInitialized = assertThisInitialized;\n  _exports.possibleConstructorReturn = possibleConstructorReturn;\n  _exports.objectDestructuringEmpty = objectDestructuringEmpty;\n  _exports.createSuper = createSuper;\n  _exports.createForOfIteratorHelperLoose = createForOfIteratorHelperLoose;\n\n  /* globals Reflect */\n  var setPrototypeOf = Object.setPrototypeOf;\n  var getPrototypeOf = Object.getPrototypeOf;\n  var hasReflectConstruct = typeof Reflect === 'object' && typeof Reflect.construct === 'function';\n  var nativeWrapperCache = new Map(); // Super minimal version of Babel's wrapNativeSuper. We only use this for\n  // extending Function, for ComputedDecoratorImpl and AliasDecoratorImpl. We know\n  // we will never directly create an instance of these classes so no need to\n  // include `construct` code or other helpers.\n\n  function wrapNativeSuper(Class) {\n    if (nativeWrapperCache.has(Class)) {\n      return nativeWrapperCache.get(Class);\n    }\n\n    function Wrapper() {}\n\n    Wrapper.prototype = Object.create(Class.prototype, {\n      constructor: {\n        value: Wrapper,\n        enumerable: false,\n        writable: true,\n        configurable: true\n      }\n    });\n    nativeWrapperCache.set(Class, Wrapper);\n    return setPrototypeOf(Wrapper, Class);\n  }\n\n  function classCallCheck(instance, Constructor) {\n    if (true\n    /* DEBUG */\n    ) {\n      if (!(instance instanceof Constructor)) {\n        throw new TypeError('Cannot call a class as a function');\n      }\n    }\n  }\n  /*\n    Overrides default `inheritsLoose` to _also_ call `Object.setPrototypeOf`.\n    This is needed so that we can use `loose` option with the\n    `@babel/plugin-transform-classes` (because we want simple assignment to the\n    prototype wherever possible) but also keep our constructor based prototypal\n    inheritance working properly\n  */\n\n\n  function inheritsLoose(subClass, superClass) {\n    if (true\n    /* DEBUG */\n    ) {\n      if (typeof superClass !== 'function' && superClass !== null) {\n        throw new TypeError('Super expression must either be null or a function');\n      }\n    }\n\n    subClass.prototype = Object.create(superClass === null ? null : superClass.prototype, {\n      constructor: {\n        value: subClass,\n        writable: true,\n        configurable: true\n      }\n    });\n\n    if (superClass !== null) {\n      setPrototypeOf(subClass, superClass);\n    }\n  }\n\n  function taggedTemplateLiteralLoose(strings, raw) {\n    if (!raw) {\n      raw = strings.slice(0);\n    }\n\n    strings.raw = raw;\n    return strings;\n  }\n\n  function _defineProperties(target, props) {\n    for (var i = 0; i < props.length; i++) {\n      var descriptor = props[i];\n      descriptor.enumerable = descriptor.enumerable || false;\n      descriptor.configurable = true;\n      if ('value' in descriptor) descriptor.writable = true;\n      Object.defineProperty(target, descriptor.key, descriptor);\n    }\n  }\n  /*\n    Differs from default implementation by avoiding boolean coercion of\n    `protoProps` and `staticProps`.\n  */\n\n\n  function createClass(Constructor, protoProps, staticProps) {\n    if (protoProps !== null && protoProps !== undefined) {\n      _defineProperties(Constructor.prototype, protoProps);\n    }\n\n    if (staticProps !== null && staticProps !== undefined) {\n      _defineProperties(Constructor, staticProps);\n    }\n\n    return Constructor;\n  }\n\n  function assertThisInitialized(self) {\n    if (true\n    /* DEBUG */\n    && self === void 0) {\n      throw new ReferenceError(\"this hasn't been initialised - super() hasn't been called\");\n    }\n\n    return self;\n  }\n  /*\n    Adds `DEBUG` guard to error being thrown, and avoids boolean coercion of `call`.\n  */\n\n\n  function possibleConstructorReturn(self, call) {\n    if (typeof call === 'object' && call !== null || typeof call === 'function') {\n      return call;\n    }\n\n    return assertThisInitialized(self);\n  }\n\n  function objectDestructuringEmpty(obj) {\n    if (true\n    /* DEBUG */\n    && (obj === null || obj === undefined)) {\n      throw new TypeError('Cannot destructure undefined');\n    }\n  }\n  /*\n    Differs from default implementation by checking for _any_ `Reflect.construct`\n    (the default implementation tries to ensure that `Reflect.construct` is truly\n    the native one).\n  \n    Original source: https://github.com/babel/babel/blob/v7.9.2/packages/babel-helpers/src/helpers.js#L738-L757\n  */\n\n\n  function createSuper(Derived) {\n    return function () {\n      var Super = getPrototypeOf(Derived);\n      var result;\n\n      if (hasReflectConstruct) {\n        // NOTE: This doesn't work if this.__proto__.constructor has been modified.\n        var NewTarget = getPrototypeOf(this).constructor;\n        result = Reflect.construct(Super, arguments, NewTarget);\n      } else {\n        result = Super.apply(this, arguments);\n      }\n\n      return possibleConstructorReturn(this, result);\n    };\n  }\n  /*\n    Does not differ from default implementation.\n  */\n\n\n  function arrayLikeToArray(arr, len) {\n    if (len == null || len > arr.length) len = arr.length;\n    var arr2 = new Array(len);\n\n    for (var i = 0; i < len; i++) {\n      arr2[i] = arr[i];\n    }\n\n    return arr2;\n  }\n  /*\n    Does not differ from default implementation.\n  */\n\n\n  function unsupportedIterableToArray(o, minLen) {\n    if (!o) return;\n    if (typeof o === 'string') return arrayLikeToArray(o, minLen);\n    var n = Object.prototype.toString.call(o).slice(8, -1);\n    if (n === 'Object' && o.constructor) n = o.constructor.name;\n    if (n === 'Map' || n === 'Set') return Array.from(n);\n    if (n === 'Arguments' || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return arrayLikeToArray(o, minLen);\n  }\n  /*\n    Does not differ from default implementation.\n  */\n\n\n  function createForOfIteratorHelperLoose(o) {\n    var i = 0;\n\n    if (typeof Symbol === 'undefined' || o[Symbol.iterator] == null) {\n      // Fallback for engines without symbol support\n      if (Array.isArray(o) || (o = unsupportedIterableToArray(o))) return function () {\n        if (i >= o.length) return {\n          done: true\n        };\n        return {\n          done: false,\n          value: o[i++]\n        };\n      };\n      throw new TypeError('Invalid attempt to iterate non-iterable instance.\\\\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.');\n    }\n\n    i = o[Symbol.iterator]();\n    return i.next.bind(i);\n  }\n});","define(\"ember-testing/index\", [\"exports\", \"ember-testing/lib/test\", \"ember-testing/lib/adapters/adapter\", \"ember-testing/lib/setup_for_testing\", \"ember-testing/lib/adapters/qunit\", \"ember-testing/lib/support\", \"ember-testing/lib/ext/application\", \"ember-testing/lib/ext/rsvp\", \"ember-testing/lib/helpers\", \"ember-testing/lib/initializers\"], function (_exports, _test, _adapter, _setup_for_testing, _qunit, _support, _application, _rsvp, _helpers, _initializers) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"Test\", {\n    enumerable: true,\n    get: function () {\n      return _test.default;\n    }\n  });\n  Object.defineProperty(_exports, \"Adapter\", {\n    enumerable: true,\n    get: function () {\n      return _adapter.default;\n    }\n  });\n  Object.defineProperty(_exports, \"setupForTesting\", {\n    enumerable: true,\n    get: function () {\n      return _setup_for_testing.default;\n    }\n  });\n  Object.defineProperty(_exports, \"QUnitAdapter\", {\n    enumerable: true,\n    get: function () {\n      return _qunit.default;\n    }\n  });\n});","define(\"ember-testing/lib/adapters/adapter\", [\"exports\", \"@ember/-internals/runtime\"], function (_exports, _runtime) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  function K() {\n    return this;\n  }\n  /**\n   @module @ember/test\n  */\n\n  /**\n    The primary purpose of this class is to create hooks that can be implemented\n    by an adapter for various test frameworks.\n  \n    @class TestAdapter\n    @public\n  */\n\n\n  var _default = _runtime.Object.extend({\n    /**\n      This callback will be called whenever an async operation is about to start.\n       Override this to call your framework's methods that handle async\n      operations.\n       @public\n      @method asyncStart\n    */\n    asyncStart: K,\n\n    /**\n      This callback will be called whenever an async operation has completed.\n       @public\n      @method asyncEnd\n    */\n    asyncEnd: K,\n\n    /**\n      Override this method with your testing framework's false assertion.\n      This function is called whenever an exception occurs causing the testing\n      promise to fail.\n       QUnit example:\n       ```javascript\n        exception: function(error) {\n          ok(false, error);\n        };\n      ```\n       @public\n      @method exception\n      @param {String} error The exception to be raised.\n    */\n    exception(error) {\n      throw error;\n    }\n\n  });\n\n  _exports.default = _default;\n});","define(\"ember-testing/lib/adapters/qunit\", [\"exports\", \"@ember/-internals/utils\", \"ember-testing/lib/adapters/adapter\"], function (_exports, _utils, _adapter) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /* globals QUnit */\n\n  /**\n     @module ember\n  */\n\n  /**\n    This class implements the methods defined by TestAdapter for the\n    QUnit testing framework.\n  \n    @class QUnitAdapter\n    @namespace Ember.Test\n    @extends TestAdapter\n    @public\n  */\n  var _default = _adapter.default.extend({\n    init() {\n      this.doneCallbacks = [];\n    },\n\n    asyncStart() {\n      if (typeof QUnit.stop === 'function') {\n        // very old QUnit version\n        QUnit.stop();\n      } else {\n        this.doneCallbacks.push(QUnit.config.current ? QUnit.config.current.assert.async() : null);\n      }\n    },\n\n    asyncEnd() {\n      // checking for QUnit.stop here (even though we _need_ QUnit.start) because\n      // QUnit.start() still exists in QUnit 2.x (it just throws an error when calling\n      // inside a test context)\n      if (typeof QUnit.stop === 'function') {\n        QUnit.start();\n      } else {\n        var done = this.doneCallbacks.pop(); // This can be null if asyncStart() was called outside of a test\n\n        if (done) {\n          done();\n        }\n      }\n    },\n\n    exception(error) {\n      QUnit.config.current.assert.ok(false, (0, _utils.inspect)(error));\n    }\n\n  });\n\n  _exports.default = _default;\n});","define(\"ember-testing/lib/events\", [\"exports\", \"@ember/runloop\", \"@ember/polyfills\", \"ember-testing/lib/helpers/-is-form-control\"], function (_exports, _runloop, _polyfills, _isFormControl) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.focus = focus;\n  _exports.fireEvent = fireEvent;\n  var DEFAULT_EVENT_OPTIONS = {\n    canBubble: true,\n    cancelable: true\n  };\n  var KEYBOARD_EVENT_TYPES = ['keydown', 'keypress', 'keyup'];\n  var MOUSE_EVENT_TYPES = ['click', 'mousedown', 'mouseup', 'dblclick', 'mouseenter', 'mouseleave', 'mousemove', 'mouseout', 'mouseover'];\n\n  function focus(el) {\n    if (!el) {\n      return;\n    }\n\n    if (el.isContentEditable || (0, _isFormControl.default)(el)) {\n      var type = el.getAttribute('type');\n\n      if (type !== 'checkbox' && type !== 'radio' && type !== 'hidden') {\n        (0, _runloop.run)(null, function () {\n          var browserIsNotFocused = document.hasFocus && !document.hasFocus(); // makes `document.activeElement` be `element`. If the browser is focused, it also fires a focus event\n\n          el.focus(); // Firefox does not trigger the `focusin` event if the window\n          // does not have focus. If the document does not have focus then\n          // fire `focusin` event as well.\n\n          if (browserIsNotFocused) {\n            // if the browser is not focused the previous `el.focus()` didn't fire an event, so we simulate it\n            fireEvent(el, 'focus', {\n              bubbles: false\n            });\n            fireEvent(el, 'focusin');\n          }\n        });\n      }\n    }\n  }\n\n  function fireEvent(element, type, options = {}) {\n    if (!element) {\n      return;\n    }\n\n    var event;\n\n    if (KEYBOARD_EVENT_TYPES.indexOf(type) > -1) {\n      event = buildKeyboardEvent(type, options);\n    } else if (MOUSE_EVENT_TYPES.indexOf(type) > -1) {\n      var rect = element.getBoundingClientRect();\n      var x = rect.left + 1;\n      var y = rect.top + 1;\n      var simulatedCoordinates = {\n        screenX: x + 5,\n        screenY: y + 95,\n        clientX: x,\n        clientY: y\n      };\n      event = buildMouseEvent(type, (0, _polyfills.assign)(simulatedCoordinates, options));\n    } else {\n      event = buildBasicEvent(type, options);\n    }\n\n    element.dispatchEvent(event);\n  }\n\n  function buildBasicEvent(type, options = {}) {\n    var event = document.createEvent('Events'); // Event.bubbles is read only\n\n    var bubbles = options.bubbles !== undefined ? options.bubbles : true;\n    var cancelable = options.cancelable !== undefined ? options.cancelable : true;\n    delete options.bubbles;\n    delete options.cancelable;\n    event.initEvent(type, bubbles, cancelable);\n    (0, _polyfills.assign)(event, options);\n    return event;\n  }\n\n  function buildMouseEvent(type, options = {}) {\n    var event;\n\n    try {\n      event = document.createEvent('MouseEvents');\n      var eventOpts = (0, _polyfills.assign)({}, DEFAULT_EVENT_OPTIONS, options);\n      event.initMouseEvent(type, eventOpts.canBubble, eventOpts.cancelable, window, eventOpts.detail, eventOpts.screenX, eventOpts.screenY, eventOpts.clientX, eventOpts.clientY, eventOpts.ctrlKey, eventOpts.altKey, eventOpts.shiftKey, eventOpts.metaKey, eventOpts.button, eventOpts.relatedTarget);\n    } catch (e) {\n      event = buildBasicEvent(type, options);\n    }\n\n    return event;\n  }\n\n  function buildKeyboardEvent(type, options = {}) {\n    var event;\n\n    try {\n      event = document.createEvent('KeyEvents');\n      var eventOpts = (0, _polyfills.assign)({}, DEFAULT_EVENT_OPTIONS, options);\n      event.initKeyEvent(type, eventOpts.canBubble, eventOpts.cancelable, window, eventOpts.ctrlKey, eventOpts.altKey, eventOpts.shiftKey, eventOpts.metaKey, eventOpts.keyCode, eventOpts.charCode);\n    } catch (e) {\n      event = buildBasicEvent(type, options);\n    }\n\n    return event;\n  }\n});","define(\"ember-testing/lib/ext/application\", [\"@ember/application\", \"ember-testing/lib/setup_for_testing\", \"ember-testing/lib/test/helpers\", \"ember-testing/lib/test/promise\", \"ember-testing/lib/test/run\", \"ember-testing/lib/test/on_inject_helpers\", \"ember-testing/lib/test/adapter\"], function (_application, _setup_for_testing, _helpers, _promise, _run, _on_inject_helpers, _adapter) {\n  \"use strict\";\n\n  _application.default.reopen({\n    /**\n     This property contains the testing helpers for the current application. These\n     are created once you call `injectTestHelpers` on your `Application`\n     instance. The included helpers are also available on the `window` object by\n     default, but can be used from this object on the individual application also.\n       @property testHelpers\n      @type {Object}\n      @default {}\n      @public\n    */\n    testHelpers: {},\n\n    /**\n     This property will contain the original methods that were registered\n     on the `helperContainer` before `injectTestHelpers` is called.\n      When `removeTestHelpers` is called, these methods are restored to the\n     `helperContainer`.\n       @property originalMethods\n      @type {Object}\n      @default {}\n      @private\n      @since 1.3.0\n    */\n    originalMethods: {},\n\n    /**\n    This property indicates whether or not this application is currently in\n    testing mode. This is set when `setupForTesting` is called on the current\n    application.\n     @property testing\n    @type {Boolean}\n    @default false\n    @since 1.3.0\n    @public\n    */\n    testing: false,\n\n    /**\n      This hook defers the readiness of the application, so that you can start\n      the app when your tests are ready to run. It also sets the router's\n      location to 'none', so that the window's location will not be modified\n      (preventing both accidental leaking of state between tests and interference\n      with your testing framework). `setupForTesting` should only be called after\n      setting a custom `router` class (for example `App.Router = Router.extend(`).\n       Example:\n       ```\n      App.setupForTesting();\n      ```\n       @method setupForTesting\n      @public\n    */\n    setupForTesting() {\n      (0, _setup_for_testing.default)();\n      this.testing = true;\n      this.resolveRegistration('router:main').reopen({\n        location: 'none'\n      });\n    },\n\n    /**\n      This will be used as the container to inject the test helpers into. By\n      default the helpers are injected into `window`.\n       @property helperContainer\n      @type {Object} The object to be used for test helpers.\n      @default window\n      @since 1.2.0\n      @private\n    */\n    helperContainer: null,\n\n    /**\n      This injects the test helpers into the `helperContainer` object. If an object is provided\n      it will be used as the helperContainer. If `helperContainer` is not set it will default\n      to `window`. If a function of the same name has already been defined it will be cached\n      (so that it can be reset if the helper is removed with `unregisterHelper` or\n      `removeTestHelpers`).\n       Any callbacks registered with `onInjectHelpers` will be called once the\n      helpers have been injected.\n       Example:\n      ```\n      App.injectTestHelpers();\n      ```\n       @method injectTestHelpers\n      @public\n    */\n    injectTestHelpers(helperContainer) {\n      if (helperContainer) {\n        this.helperContainer = helperContainer;\n      } else {\n        this.helperContainer = window;\n      }\n\n      this.reopen({\n        willDestroy() {\n          this._super(...arguments);\n\n          this.removeTestHelpers();\n        }\n\n      });\n      this.testHelpers = {};\n\n      for (var name in _helpers.helpers) {\n        this.originalMethods[name] = this.helperContainer[name];\n        this.testHelpers[name] = this.helperContainer[name] = helper(this, name);\n        protoWrap(_promise.default.prototype, name, helper(this, name), _helpers.helpers[name].meta.wait);\n      }\n\n      (0, _on_inject_helpers.invokeInjectHelpersCallbacks)(this);\n    },\n\n    /**\n      This removes all helpers that have been registered, and resets and functions\n      that were overridden by the helpers.\n       Example:\n       ```javascript\n      App.removeTestHelpers();\n      ```\n       @public\n      @method removeTestHelpers\n    */\n    removeTestHelpers() {\n      if (!this.helperContainer) {\n        return;\n      }\n\n      for (var name in _helpers.helpers) {\n        this.helperContainer[name] = this.originalMethods[name];\n        delete _promise.default.prototype[name];\n        delete this.testHelpers[name];\n        delete this.originalMethods[name];\n      }\n    }\n\n  }); // This method is no longer needed\n  // But still here for backwards compatibility\n  // of helper chaining\n\n\n  function protoWrap(proto, name, callback, isAsync) {\n    proto[name] = function (...args) {\n      if (isAsync) {\n        return callback.apply(this, args);\n      } else {\n        return this.then(function () {\n          return callback.apply(this, args);\n        });\n      }\n    };\n  }\n\n  function helper(app, name) {\n    var fn = _helpers.helpers[name].method;\n    var meta = _helpers.helpers[name].meta;\n\n    if (!meta.wait) {\n      return (...args) => fn.apply(app, [app, ...args]);\n    }\n\n    return (...args) => {\n      var lastPromise = (0, _run.default)(() => (0, _promise.resolve)((0, _promise.getLastPromise)())); // wait for last helper's promise to resolve and then\n      // execute. To be safe, we need to tell the adapter we're going\n      // asynchronous here, because fn may not be invoked before we\n      // return.\n\n      (0, _adapter.asyncStart)();\n      return lastPromise.then(() => fn.apply(app, [app, ...args])).finally(_adapter.asyncEnd);\n    };\n  }\n});","define(\"ember-testing/lib/ext/rsvp\", [\"exports\", \"@ember/-internals/runtime\", \"@ember/runloop\", \"@ember/debug\", \"ember-testing/lib/test/adapter\"], function (_exports, _runtime, _runloop, _debug, _adapter) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  _runtime.RSVP.configure('async', function (callback, promise) {\n    // if schedule will cause autorun, we need to inform adapter\n    if ((0, _debug.isTesting)() && !_runloop.backburner.currentInstance) {\n      (0, _adapter.asyncStart)();\n\n      _runloop.backburner.schedule('actions', () => {\n        (0, _adapter.asyncEnd)();\n        callback(promise);\n      });\n    } else {\n      _runloop.backburner.schedule('actions', () => callback(promise));\n    }\n  });\n\n  var _default = _runtime.RSVP;\n  _exports.default = _default;\n});","define(\"ember-testing/lib/helpers\", [\"ember-testing/lib/test/helpers\", \"ember-testing/lib/helpers/and_then\", \"ember-testing/lib/helpers/click\", \"ember-testing/lib/helpers/current_path\", \"ember-testing/lib/helpers/current_route_name\", \"ember-testing/lib/helpers/current_url\", \"ember-testing/lib/helpers/fill_in\", \"ember-testing/lib/helpers/find\", \"ember-testing/lib/helpers/find_with_assert\", \"ember-testing/lib/helpers/key_event\", \"ember-testing/lib/helpers/pause_test\", \"ember-testing/lib/helpers/trigger_event\", \"ember-testing/lib/helpers/visit\", \"ember-testing/lib/helpers/wait\"], function (_helpers, _and_then, _click, _current_path, _current_route_name, _current_url, _fill_in, _find, _find_with_assert, _key_event, _pause_test, _trigger_event, _visit, _wait) {\n  \"use strict\";\n\n  (0, _helpers.registerAsyncHelper)('visit', _visit.default);\n  (0, _helpers.registerAsyncHelper)('click', _click.default);\n  (0, _helpers.registerAsyncHelper)('keyEvent', _key_event.default);\n  (0, _helpers.registerAsyncHelper)('fillIn', _fill_in.default);\n  (0, _helpers.registerAsyncHelper)('wait', _wait.default);\n  (0, _helpers.registerAsyncHelper)('andThen', _and_then.default);\n  (0, _helpers.registerAsyncHelper)('pauseTest', _pause_test.pauseTest);\n  (0, _helpers.registerAsyncHelper)('triggerEvent', _trigger_event.default);\n  (0, _helpers.registerHelper)('find', _find.default);\n  (0, _helpers.registerHelper)('findWithAssert', _find_with_assert.default);\n  (0, _helpers.registerHelper)('currentRouteName', _current_route_name.default);\n  (0, _helpers.registerHelper)('currentPath', _current_path.default);\n  (0, _helpers.registerHelper)('currentURL', _current_url.default);\n  (0, _helpers.registerHelper)('resumeTest', _pause_test.resumeTest);\n});","define(\"ember-testing/lib/helpers/-is-form-control\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = isFormControl;\n  var FORM_CONTROL_TAGS = ['INPUT', 'BUTTON', 'SELECT', 'TEXTAREA'];\n  /**\n    @private\n    @param {Element} element the element to check\n    @returns {boolean} `true` when the element is a form control, `false` otherwise\n  */\n\n  function isFormControl(element) {\n    var {\n      tagName,\n      type\n    } = element;\n\n    if (type === 'hidden') {\n      return false;\n    }\n\n    return FORM_CONTROL_TAGS.indexOf(tagName) > -1;\n  }\n});","define(\"ember-testing/lib/helpers/and_then\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = andThen;\n\n  function andThen(app, callback) {\n    return app.testHelpers.wait(callback(app));\n  }\n});","define(\"ember-testing/lib/helpers/click\", [\"exports\", \"ember-testing/lib/events\"], function (_exports, _events) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = click;\n\n  /**\n  @module ember\n  */\n\n  /**\n    Clicks an element and triggers any actions triggered by the element's `click`\n    event.\n  \n    Example:\n  \n    ```javascript\n    click('.some-jQuery-selector').then(function() {\n      // assert something\n    });\n    ```\n  \n    @method click\n    @param {String} selector jQuery selector for finding element on the DOM\n    @param {Object} context A DOM Element, Document, or jQuery to use as context\n    @return {RSVP.Promise<undefined>}\n    @public\n  */\n  function click(app, selector, context) {\n    var $el = app.testHelpers.findWithAssert(selector, context);\n    var el = $el[0];\n    (0, _events.fireEvent)(el, 'mousedown');\n    (0, _events.focus)(el);\n    (0, _events.fireEvent)(el, 'mouseup');\n    (0, _events.fireEvent)(el, 'click');\n    return app.testHelpers.wait();\n  }\n});","define(\"ember-testing/lib/helpers/current_path\", [\"exports\", \"@ember/-internals/metal\"], function (_exports, _metal) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = currentPath;\n\n  /**\n  @module ember\n  */\n\n  /**\n    Returns the current path.\n  \n  Example:\n  \n  ```javascript\n  function validateURL() {\n    equal(currentPath(), 'some.path.index', \"correct path was transitioned into.\");\n  }\n  \n  click('#some-link-id').then(validateURL);\n  ```\n  \n  @method currentPath\n  @return {Object} The currently active path.\n  @since 1.5.0\n  @public\n  */\n  function currentPath(app) {\n    var routingService = app.__container__.lookup('service:-routing');\n\n    return (0, _metal.get)(routingService, 'currentPath');\n  }\n});","define(\"ember-testing/lib/helpers/current_route_name\", [\"exports\", \"@ember/-internals/metal\"], function (_exports, _metal) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = currentRouteName;\n\n  /**\n  @module ember\n  */\n\n  /**\n    Returns the currently active route name.\n  \n  Example:\n  \n  ```javascript\n  function validateRouteName() {\n    equal(currentRouteName(), 'some.path', \"correct route was transitioned into.\");\n  }\n  visit('/some/path').then(validateRouteName)\n  ```\n  \n  @method currentRouteName\n  @return {Object} The name of the currently active route.\n  @since 1.5.0\n  @public\n  */\n  function currentRouteName(app) {\n    var routingService = app.__container__.lookup('service:-routing');\n\n    return (0, _metal.get)(routingService, 'currentRouteName');\n  }\n});","define(\"ember-testing/lib/helpers/current_url\", [\"exports\", \"@ember/-internals/metal\"], function (_exports, _metal) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = currentURL;\n\n  /**\n  @module ember\n  */\n\n  /**\n    Returns the current URL.\n  \n  Example:\n  \n  ```javascript\n  function validateURL() {\n    equal(currentURL(), '/some/path', \"correct URL was transitioned into.\");\n  }\n  \n  click('#some-link-id').then(validateURL);\n  ```\n  \n  @method currentURL\n  @return {Object} The currently active URL.\n  @since 1.5.0\n  @public\n  */\n  function currentURL(app) {\n    var router = app.__container__.lookup('router:main');\n\n    return (0, _metal.get)(router, 'location').getURL();\n  }\n});","define(\"ember-testing/lib/helpers/fill_in\", [\"exports\", \"ember-testing/lib/events\", \"ember-testing/lib/helpers/-is-form-control\"], function (_exports, _events, _isFormControl) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = fillIn;\n\n  /**\n  @module ember\n  */\n\n  /**\n    Fills in an input element with some text.\n  \n    Example:\n  \n    ```javascript\n    fillIn('#email', 'you@example.com').then(function() {\n      // assert something\n    });\n    ```\n  \n    @method fillIn\n    @param {String} selector jQuery selector finding an input element on the DOM\n    to fill text with\n    @param {String} text text to place inside the input element\n    @return {RSVP.Promise<undefined>}\n    @public\n  */\n  function fillIn(app, selector, contextOrText, text) {\n    var $el, el, context;\n\n    if (text === undefined) {\n      text = contextOrText;\n    } else {\n      context = contextOrText;\n    }\n\n    $el = app.testHelpers.findWithAssert(selector, context);\n    el = $el[0];\n    (0, _events.focus)(el);\n\n    if ((0, _isFormControl.default)(el)) {\n      el.value = text;\n    } else {\n      el.innerHTML = text;\n    }\n\n    (0, _events.fireEvent)(el, 'input');\n    (0, _events.fireEvent)(el, 'change');\n    return app.testHelpers.wait();\n  }\n});","define(\"ember-testing/lib/helpers/find\", [\"exports\", \"@ember/-internals/metal\", \"@ember/debug\", \"@ember/-internals/views\"], function (_exports, _metal, _debug, _views) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = find;\n\n  /**\n  @module ember\n  */\n\n  /**\n    Finds an element in the context of the app's container element. A simple alias\n    for `app.$(selector)`.\n  \n    Example:\n  \n    ```javascript\n    var $el = find('.my-selector');\n    ```\n  \n    With the `context` param:\n  \n    ```javascript\n    var $el = find('.my-selector', '.parent-element-class');\n    ```\n  \n    @method find\n    @param {String} selector jQuery selector for element lookup\n    @param {String} [context] (optional) jQuery selector that will limit the selector\n                              argument to find only within the context's children\n    @return {Object} DOM element representing the results of the query\n    @public\n  */\n  function find(app, selector, context) {\n    if (_views.jQueryDisabled) {\n      (true && !(false) && (0, _debug.assert)('If jQuery is disabled, please import and use helpers from @ember/test-helpers [https://github.com/emberjs/ember-test-helpers]. Note: `find` is not an available helper.'));\n    }\n\n    var $el;\n    context = context || (0, _metal.get)(app, 'rootElement');\n    $el = app.$(selector, context);\n    return $el;\n  }\n});","define(\"ember-testing/lib/helpers/find_with_assert\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = findWithAssert;\n\n  /**\n  @module ember\n  */\n\n  /**\n    Like `find`, but throws an error if the element selector returns no results.\n  \n    Example:\n  \n    ```javascript\n    var $el = findWithAssert('.doesnt-exist'); // throws error\n    ```\n  \n    With the `context` param:\n  \n    ```javascript\n    var $el = findWithAssert('.selector-id', '.parent-element-class'); // assert will pass\n    ```\n  \n    @method findWithAssert\n    @param {String} selector jQuery selector string for finding an element within\n    the DOM\n    @param {String} [context] (optional) jQuery selector that will limit the\n    selector argument to find only within the context's children\n    @return {Object} jQuery object representing the results of the query\n    @throws {Error} throws error if object returned has a length of 0\n    @public\n  */\n  function findWithAssert(app, selector, context) {\n    var $el = app.testHelpers.find(selector, context);\n\n    if ($el.length === 0) {\n      throw new Error('Element ' + selector + ' not found.');\n    }\n\n    return $el;\n  }\n});","define(\"ember-testing/lib/helpers/key_event\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = keyEvent;\n\n  /**\n  @module ember\n  */\n\n  /**\n    Simulates a key event, e.g. `keypress`, `keydown`, `keyup` with the desired keyCode\n    Example:\n    ```javascript\n    keyEvent('.some-jQuery-selector', 'keypress', 13).then(function() {\n     // assert something\n    });\n    ```\n    @method keyEvent\n    @param {String} selector jQuery selector for finding element on the DOM\n    @param {String} type the type of key event, e.g. `keypress`, `keydown`, `keyup`\n    @param {Number} keyCode the keyCode of the simulated key event\n    @return {RSVP.Promise<undefined>}\n    @since 1.5.0\n    @public\n  */\n  function keyEvent(app, selector, contextOrType, typeOrKeyCode, keyCode) {\n    var context, type;\n\n    if (keyCode === undefined) {\n      context = null;\n      keyCode = typeOrKeyCode;\n      type = contextOrType;\n    } else {\n      context = contextOrType;\n      type = typeOrKeyCode;\n    }\n\n    return app.testHelpers.triggerEvent(selector, context, type, {\n      keyCode,\n      which: keyCode\n    });\n  }\n});","define(\"ember-testing/lib/helpers/pause_test\", [\"exports\", \"@ember/-internals/runtime\", \"@ember/debug\"], function (_exports, _runtime, _debug) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.resumeTest = resumeTest;\n  _exports.pauseTest = pauseTest;\n\n  /**\n  @module ember\n  */\n  var resume;\n  /**\n   Resumes a test paused by `pauseTest`.\n  \n   @method resumeTest\n   @return {void}\n   @public\n  */\n\n  function resumeTest() {\n    (true && !(resume) && (0, _debug.assert)('Testing has not been paused. There is nothing to resume.', resume));\n    resume();\n    resume = undefined;\n  }\n  /**\n   Pauses the current test - this is useful for debugging while testing or for test-driving.\n   It allows you to inspect the state of your application at any point.\n   Example (The test will pause before clicking the button):\n  \n   ```javascript\n   visit('/')\n   return pauseTest();\n   click('.btn');\n   ```\n  \n   You may want to turn off the timeout before pausing.\n  \n   qunit (timeout available to use as of 2.4.0):\n  \n   ```\n   visit('/');\n   assert.timeout(0);\n   return pauseTest();\n   click('.btn');\n   ```\n  \n   mocha (timeout happens automatically as of ember-mocha v0.14.0):\n  \n   ```\n   visit('/');\n   this.timeout(0);\n   return pauseTest();\n   click('.btn');\n   ```\n  \n  \n   @since 1.9.0\n   @method pauseTest\n   @return {Object} A promise that will never resolve\n   @public\n  */\n\n\n  function pauseTest() {\n    (0, _debug.info)('Testing paused. Use `resumeTest()` to continue.');\n    return new _runtime.RSVP.Promise(resolve => {\n      resume = resolve;\n    }, 'TestAdapter paused promise');\n  }\n});","define(\"ember-testing/lib/helpers/trigger_event\", [\"exports\", \"ember-testing/lib/events\"], function (_exports, _events) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = triggerEvent;\n\n  /**\n  @module ember\n  */\n\n  /**\n    Triggers the given DOM event on the element identified by the provided selector.\n    Example:\n    ```javascript\n    triggerEvent('#some-elem-id', 'blur');\n    ```\n    This is actually used internally by the `keyEvent` helper like so:\n    ```javascript\n    triggerEvent('#some-elem-id', 'keypress', { keyCode: 13 });\n    ```\n   @method triggerEvent\n   @param {String} selector jQuery selector for finding element on the DOM\n   @param {String} [context] jQuery selector that will limit the selector\n                             argument to find only within the context's children\n   @param {String} type The event type to be triggered.\n   @param {Object} [options] The options to be passed to jQuery.Event.\n   @return {RSVP.Promise<undefined>}\n   @since 1.5.0\n   @public\n  */\n  function triggerEvent(app, selector, contextOrType, typeOrOptions, possibleOptions) {\n    var arity = arguments.length;\n    var context, type, options;\n\n    if (arity === 3) {\n      // context and options are optional, so this is\n      // app, selector, type\n      context = null;\n      type = contextOrType;\n      options = {};\n    } else if (arity === 4) {\n      // context and options are optional, so this is\n      if (typeof typeOrOptions === 'object') {\n        // either\n        // app, selector, type, options\n        context = null;\n        type = contextOrType;\n        options = typeOrOptions;\n      } else {\n        // or\n        // app, selector, context, type\n        context = contextOrType;\n        type = typeOrOptions;\n        options = {};\n      }\n    } else {\n      context = contextOrType;\n      type = typeOrOptions;\n      options = possibleOptions;\n    }\n\n    var $el = app.testHelpers.findWithAssert(selector, context);\n    var el = $el[0];\n    (0, _events.fireEvent)(el, type, options);\n    return app.testHelpers.wait();\n  }\n});","define(\"ember-testing/lib/helpers/visit\", [\"exports\", \"@ember/runloop\"], function (_exports, _runloop) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = visit;\n\n  /**\n    Loads a route, sets up any controllers, and renders any templates associated\n    with the route as though a real user had triggered the route change while\n    using your app.\n  \n    Example:\n  \n    ```javascript\n    visit('posts/index').then(function() {\n      // assert something\n    });\n    ```\n  \n    @method visit\n    @param {String} url the name of the route\n    @return {RSVP.Promise<undefined>}\n    @public\n  */\n  function visit(app, url) {\n    var router = app.__container__.lookup('router:main');\n\n    var shouldHandleURL = false;\n    app.boot().then(() => {\n      router.location.setURL(url);\n\n      if (shouldHandleURL) {\n        (0, _runloop.run)(app.__deprecatedInstance__, 'handleURL', url);\n      }\n    });\n\n    if (app._readinessDeferrals > 0) {\n      router.initialURL = url;\n      (0, _runloop.run)(app, 'advanceReadiness');\n      delete router.initialURL;\n    } else {\n      shouldHandleURL = true;\n    }\n\n    return app.testHelpers.wait();\n  }\n});","define(\"ember-testing/lib/helpers/wait\", [\"exports\", \"ember-testing/lib/test/waiters\", \"@ember/-internals/runtime\", \"@ember/runloop\", \"ember-testing/lib/test/pending_requests\"], function (_exports, _waiters, _runtime, _runloop, _pending_requests) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = wait;\n\n  /**\n  @module ember\n  */\n\n  /**\n    Causes the run loop to process any pending events. This is used to ensure that\n    any async operations from other helpers (or your assertions) have been processed.\n  \n    This is most often used as the return value for the helper functions (see 'click',\n    'fillIn','visit',etc). However, there is a method to register a test helper which\n    utilizes this method without the need to actually call `wait()` in your helpers.\n  \n    The `wait` helper is built into `registerAsyncHelper` by default. You will not need\n    to `return app.testHelpers.wait();` - the wait behavior is provided for you.\n  \n    Example:\n  \n    ```javascript\n    import { registerAsyncHelper } from '@ember/test';\n  \n    registerAsyncHelper('loginUser', function(app, username, password) {\n      visit('secured/path/here')\n        .fillIn('#username', username)\n        .fillIn('#password', password)\n        .click('.submit');\n    });\n    ```\n  \n    @method wait\n    @param {Object} value The value to be returned.\n    @return {RSVP.Promise<any>} Promise that resolves to the passed value.\n    @public\n    @since 1.0.0\n  */\n  function wait(app, value) {\n    return new _runtime.RSVP.Promise(function (resolve) {\n      var router = app.__container__.lookup('router:main'); // Every 10ms, poll for the async thing to have finished\n\n\n      var watcher = setInterval(() => {\n        // 1. If the router is loading, keep polling\n        var routerIsLoading = router._routerMicrolib && Boolean(router._routerMicrolib.activeTransition);\n\n        if (routerIsLoading) {\n          return;\n        } // 2. If there are pending Ajax requests, keep polling\n\n\n        if ((0, _pending_requests.pendingRequests)()) {\n          return;\n        } // 3. If there are scheduled timers or we are inside of a run loop, keep polling\n\n\n        if ((0, _runloop.hasScheduledTimers)() || (0, _runloop.getCurrentRunLoop)()) {\n          return;\n        }\n\n        if ((0, _waiters.checkWaiters)()) {\n          return;\n        } // Stop polling\n\n\n        clearInterval(watcher); // Synchronously resolve the promise\n\n        (0, _runloop.run)(null, resolve, value);\n      }, 10);\n    });\n  }\n});","define(\"ember-testing/lib/initializers\", [\"@ember/application\"], function (_application) {\n  \"use strict\";\n\n  var name = 'deferReadiness in `testing` mode';\n  (0, _application.onLoad)('Ember.Application', function (Application) {\n    if (!Application.initializers[name]) {\n      Application.initializer({\n        name: name,\n\n        initialize(application) {\n          if (application.testing) {\n            application.deferReadiness();\n          }\n        }\n\n      });\n    }\n  });\n});","define(\"ember-testing/lib/setup_for_testing\", [\"exports\", \"@ember/debug\", \"@ember/-internals/views\", \"ember-testing/lib/test/adapter\", \"ember-testing/lib/test/pending_requests\", \"ember-testing/lib/adapters/adapter\", \"ember-testing/lib/adapters/qunit\"], function (_exports, _debug, _views, _adapter, _pending_requests, _adapter2, _qunit) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = setupForTesting;\n\n  /* global self */\n\n  /**\n    Sets Ember up for testing. This is useful to perform\n    basic setup steps in order to unit test.\n  \n    Use `App.setupForTesting` to perform integration tests (full\n    application testing).\n  \n    @method setupForTesting\n    @namespace Ember\n    @since 1.5.0\n    @private\n  */\n  function setupForTesting() {\n    (0, _debug.setTesting)(true);\n    var adapter = (0, _adapter.getAdapter)(); // if adapter is not manually set default to QUnit\n\n    if (!adapter) {\n      (0, _adapter.setAdapter)(typeof self.QUnit === 'undefined' ? _adapter2.default.create() : _qunit.default.create());\n    }\n\n    if (!_views.jQueryDisabled) {\n      (0, _views.jQuery)(document).off('ajaxSend', _pending_requests.incrementPendingRequests);\n      (0, _views.jQuery)(document).off('ajaxComplete', _pending_requests.decrementPendingRequests);\n      (0, _pending_requests.clearPendingRequests)();\n      (0, _views.jQuery)(document).on('ajaxSend', _pending_requests.incrementPendingRequests);\n      (0, _views.jQuery)(document).on('ajaxComplete', _pending_requests.decrementPendingRequests);\n    }\n  }\n});","define(\"ember-testing/lib/support\", [\"@ember/debug\", \"@ember/-internals/views\", \"@ember/-internals/browser-environment\"], function (_debug, _views, _browserEnvironment) {\n  \"use strict\";\n\n  /**\n    @module ember\n  */\n  var $ = _views.jQuery;\n  /**\n    This method creates a checkbox and triggers the click event to fire the\n    passed in handler. It is used to correct for a bug in older versions\n    of jQuery (e.g 1.8.3).\n  \n    @private\n    @method testCheckboxClick\n  */\n\n  function testCheckboxClick(handler) {\n    var input = document.createElement('input');\n    $(input).attr('type', 'checkbox').css({\n      position: 'absolute',\n      left: '-1000px',\n      top: '-1000px'\n    }).appendTo('body').on('click', handler).trigger('click').remove();\n  }\n\n  if (_browserEnvironment.hasDOM && !_views.jQueryDisabled) {\n    $(function () {\n      /*\n        Determine whether a checkbox checked using jQuery's \"click\" method will have\n        the correct value for its checked property.\n         If we determine that the current jQuery version exhibits this behavior,\n        patch it to work correctly as in the commit for the actual fix:\n        https://github.com/jquery/jquery/commit/1fb2f92.\n      */\n      testCheckboxClick(function () {\n        if (!this.checked && !$.event.special.click) {\n          $.event.special.click = {\n            // For checkbox, fire native event so checked state will be right\n            trigger() {\n              if (this.nodeName === 'INPUT' && this.type === 'checkbox' && this.click) {\n                this.click();\n                return false;\n              }\n            }\n\n          };\n        }\n      }); // Try again to verify that the patch took effect or blow up.\n\n      testCheckboxClick(function () {\n        (true && (0, _debug.warn)(\"clicked checkboxes should be checked! the jQuery patch didn't work\", this.checked, {\n          id: 'ember-testing.test-checkbox-click'\n        }));\n      });\n    });\n  }\n});","define(\"ember-testing/lib/test\", [\"exports\", \"ember-testing/lib/test/helpers\", \"ember-testing/lib/test/on_inject_helpers\", \"ember-testing/lib/test/promise\", \"ember-testing/lib/test/waiters\", \"ember-testing/lib/test/adapter\"], function (_exports, _helpers, _on_inject_helpers, _promise, _waiters, _adapter) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n    @module ember\n  */\n\n  /**\n    This is a container for an assortment of testing related functionality:\n  \n    * Choose your default test adapter (for your framework of choice).\n    * Register/Unregister additional test helpers.\n    * Setup callbacks to be fired when the test helpers are injected into\n      your application.\n  \n    @class Test\n    @namespace Ember\n    @public\n  */\n  var Test = {\n    /**\n      Hash containing all known test helpers.\n       @property _helpers\n      @private\n      @since 1.7.0\n    */\n    _helpers: _helpers.helpers,\n    registerHelper: _helpers.registerHelper,\n    registerAsyncHelper: _helpers.registerAsyncHelper,\n    unregisterHelper: _helpers.unregisterHelper,\n    onInjectHelpers: _on_inject_helpers.onInjectHelpers,\n    Promise: _promise.default,\n    promise: _promise.promise,\n    resolve: _promise.resolve,\n    registerWaiter: _waiters.registerWaiter,\n    unregisterWaiter: _waiters.unregisterWaiter,\n    checkWaiters: _waiters.checkWaiters\n  };\n  /**\n   Used to allow ember-testing to communicate with a specific testing\n   framework.\n  \n   You can manually set it before calling `App.setupForTesting()`.\n  \n   Example:\n  \n   ```javascript\n   Ember.Test.adapter = MyCustomAdapter.create()\n   ```\n  \n   If you do not set it, ember-testing will default to `Ember.Test.QUnitAdapter`.\n  \n   @public\n   @for Ember.Test\n   @property adapter\n   @type {Class} The adapter to be used.\n   @default Ember.Test.QUnitAdapter\n  */\n\n  Object.defineProperty(Test, 'adapter', {\n    get: _adapter.getAdapter,\n    set: _adapter.setAdapter\n  });\n  var _default = Test;\n  _exports.default = _default;\n});","define(\"ember-testing/lib/test/adapter\", [\"exports\", \"@ember/-internals/error-handling\"], function (_exports, _errorHandling) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.getAdapter = getAdapter;\n  _exports.setAdapter = setAdapter;\n  _exports.asyncStart = asyncStart;\n  _exports.asyncEnd = asyncEnd;\n  var adapter;\n\n  function getAdapter() {\n    return adapter;\n  }\n\n  function setAdapter(value) {\n    adapter = value;\n\n    if (value && typeof value.exception === 'function') {\n      (0, _errorHandling.setDispatchOverride)(adapterDispatch);\n    } else {\n      (0, _errorHandling.setDispatchOverride)(null);\n    }\n  }\n\n  function asyncStart() {\n    if (adapter) {\n      adapter.asyncStart();\n    }\n  }\n\n  function asyncEnd() {\n    if (adapter) {\n      adapter.asyncEnd();\n    }\n  }\n\n  function adapterDispatch(error) {\n    adapter.exception(error);\n    console.error(error.stack); // eslint-disable-line no-console\n  }\n});","define(\"ember-testing/lib/test/helpers\", [\"exports\", \"ember-testing/lib/test/promise\"], function (_exports, _promise) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.registerHelper = registerHelper;\n  _exports.registerAsyncHelper = registerAsyncHelper;\n  _exports.unregisterHelper = unregisterHelper;\n  _exports.helpers = void 0;\n  var helpers = {};\n  /**\n   @module @ember/test\n  */\n\n  /**\n    `registerHelper` is used to register a test helper that will be injected\n    when `App.injectTestHelpers` is called.\n  \n    The helper method will always be called with the current Application as\n    the first parameter.\n  \n    For example:\n  \n    ```javascript\n    import { registerHelper } from '@ember/test';\n    import { run } from '@ember/runloop';\n  \n    registerHelper('boot', function(app) {\n      run(app, app.advanceReadiness);\n    });\n    ```\n  \n    This helper can later be called without arguments because it will be\n    called with `app` as the first parameter.\n  \n    ```javascript\n    import Application from '@ember/application';\n  \n    App = Application.create();\n    App.injectTestHelpers();\n    boot();\n    ```\n  \n    @public\n    @for @ember/test\n    @static\n    @method registerHelper\n    @param {String} name The name of the helper method to add.\n    @param {Function} helperMethod\n    @param options {Object}\n  */\n\n  _exports.helpers = helpers;\n\n  function registerHelper(name, helperMethod) {\n    helpers[name] = {\n      method: helperMethod,\n      meta: {\n        wait: false\n      }\n    };\n  }\n  /**\n    `registerAsyncHelper` is used to register an async test helper that will be injected\n    when `App.injectTestHelpers` is called.\n  \n    The helper method will always be called with the current Application as\n    the first parameter.\n  \n    For example:\n  \n    ```javascript\n    import { registerAsyncHelper } from '@ember/test';\n    import { run } from '@ember/runloop';\n  \n    registerAsyncHelper('boot', function(app) {\n      run(app, app.advanceReadiness);\n    });\n    ```\n  \n    The advantage of an async helper is that it will not run\n    until the last async helper has completed.  All async helpers\n    after it will wait for it complete before running.\n  \n  \n    For example:\n  \n    ```javascript\n    import { registerAsyncHelper } from '@ember/test';\n  \n    registerAsyncHelper('deletePost', function(app, postId) {\n      click('.delete-' + postId);\n    });\n  \n    // ... in your test\n    visit('/post/2');\n    deletePost(2);\n    visit('/post/3');\n    deletePost(3);\n    ```\n  \n    @public\n    @for @ember/test\n    @method registerAsyncHelper\n    @param {String} name The name of the helper method to add.\n    @param {Function} helperMethod\n    @since 1.2.0\n  */\n\n\n  function registerAsyncHelper(name, helperMethod) {\n    helpers[name] = {\n      method: helperMethod,\n      meta: {\n        wait: true\n      }\n    };\n  }\n  /**\n    Remove a previously added helper method.\n  \n    Example:\n  \n    ```javascript\n    import { unregisterHelper } from '@ember/test';\n  \n    unregisterHelper('wait');\n    ```\n  \n    @public\n    @method unregisterHelper\n    @static\n    @for @ember/test\n    @param {String} name The helper to remove.\n  */\n\n\n  function unregisterHelper(name) {\n    delete helpers[name];\n    delete _promise.default.prototype[name];\n  }\n});","define(\"ember-testing/lib/test/on_inject_helpers\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.onInjectHelpers = onInjectHelpers;\n  _exports.invokeInjectHelpersCallbacks = invokeInjectHelpersCallbacks;\n  _exports.callbacks = void 0;\n  var callbacks = [];\n  /**\n    Used to register callbacks to be fired whenever `App.injectTestHelpers`\n    is called.\n  \n    The callback will receive the current application as an argument.\n  \n    Example:\n  \n    ```javascript\n    import $ from 'jquery';\n  \n    Ember.Test.onInjectHelpers(function() {\n      $(document).ajaxSend(function() {\n        Test.pendingRequests++;\n      });\n  \n      $(document).ajaxComplete(function() {\n        Test.pendingRequests--;\n      });\n    });\n    ```\n  \n    @public\n    @for Ember.Test\n    @method onInjectHelpers\n    @param {Function} callback The function to be called.\n  */\n\n  _exports.callbacks = callbacks;\n\n  function onInjectHelpers(callback) {\n    callbacks.push(callback);\n  }\n\n  function invokeInjectHelpersCallbacks(app) {\n    for (var i = 0; i < callbacks.length; i++) {\n      callbacks[i](app);\n    }\n  }\n});","define(\"ember-testing/lib/test/pending_requests\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.pendingRequests = pendingRequests;\n  _exports.clearPendingRequests = clearPendingRequests;\n  _exports.incrementPendingRequests = incrementPendingRequests;\n  _exports.decrementPendingRequests = decrementPendingRequests;\n  var requests = [];\n\n  function pendingRequests() {\n    return requests.length;\n  }\n\n  function clearPendingRequests() {\n    requests.length = 0;\n  }\n\n  function incrementPendingRequests(_, xhr) {\n    requests.push(xhr);\n  }\n\n  function decrementPendingRequests(_, xhr) {\n    setTimeout(function () {\n      for (var i = 0; i < requests.length; i++) {\n        if (xhr === requests[i]) {\n          requests.splice(i, 1);\n          break;\n        }\n      }\n    }, 0);\n  }\n});","define(\"ember-testing/lib/test/promise\", [\"exports\", \"@ember/-internals/runtime\", \"ember-testing/lib/test/run\"], function (_exports, _runtime, _run) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.promise = promise;\n  _exports.resolve = resolve;\n  _exports.getLastPromise = getLastPromise;\n  _exports.default = void 0;\n  var lastPromise;\n\n  class TestPromise extends _runtime.RSVP.Promise {\n    constructor() {\n      super(...arguments);\n      lastPromise = this;\n    }\n\n    then(_onFulfillment, ...args) {\n      var onFulfillment = typeof _onFulfillment === 'function' ? result => isolate(_onFulfillment, result) : undefined;\n      return super.then(onFulfillment, ...args);\n    }\n\n  }\n  /**\n    This returns a thenable tailored for testing.  It catches failed\n    `onSuccess` callbacks and invokes the `Ember.Test.adapter.exception`\n    callback in the last chained then.\n  \n    This method should be returned by async helpers such as `wait`.\n  \n    @public\n    @for Ember.Test\n    @method promise\n    @param {Function} resolver The function used to resolve the promise.\n    @param {String} label An optional string for identifying the promise.\n  */\n\n\n  _exports.default = TestPromise;\n\n  function promise(resolver, label) {\n    var fullLabel = `Ember.Test.promise: ${label || '<Unknown Promise>'}`;\n    return new TestPromise(resolver, fullLabel);\n  }\n  /**\n    Replacement for `Ember.RSVP.resolve`\n    The only difference is this uses\n    an instance of `Ember.Test.Promise`\n  \n    @public\n    @for Ember.Test\n    @method resolve\n    @param {Mixed} The value to resolve\n    @since 1.2.0\n  */\n\n\n  function resolve(result, label) {\n    return TestPromise.resolve(result, label);\n  }\n\n  function getLastPromise() {\n    return lastPromise;\n  } // This method isolates nested async methods\n  // so that they don't conflict with other last promises.\n  //\n  // 1. Set `Ember.Test.lastPromise` to null\n  // 2. Invoke method\n  // 3. Return the last promise created during method\n\n\n  function isolate(onFulfillment, result) {\n    // Reset lastPromise for nested helpers\n    lastPromise = null;\n    var value = onFulfillment(result);\n    var promise = lastPromise;\n    lastPromise = null; // If the method returned a promise\n    // return that promise. If not,\n    // return the last async helper's promise\n\n    if (value && value instanceof TestPromise || !promise) {\n      return value;\n    } else {\n      return (0, _run.default)(() => resolve(promise).then(() => value));\n    }\n  }\n});","define(\"ember-testing/lib/test/run\", [\"exports\", \"@ember/runloop\"], function (_exports, _runloop) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = run;\n\n  function run(fn) {\n    if (!(0, _runloop.getCurrentRunLoop)()) {\n      return (0, _runloop.run)(fn);\n    } else {\n      return fn();\n    }\n  }\n});","define(\"ember-testing/lib/test/waiters\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.registerWaiter = registerWaiter;\n  _exports.unregisterWaiter = unregisterWaiter;\n  _exports.checkWaiters = checkWaiters;\n\n  /**\n   @module @ember/test\n  */\n  var contexts = [];\n  var callbacks = [];\n  /**\n     This allows ember-testing to play nicely with other asynchronous\n     events, such as an application that is waiting for a CSS3\n     transition or an IndexDB transaction. The waiter runs periodically\n     after each async helper (i.e. `click`, `andThen`, `visit`, etc) has executed,\n     until the returning result is truthy. After the waiters finish, the next async helper\n     is executed and the process repeats.\n  \n     For example:\n  \n     ```javascript\n     import { registerWaiter } from '@ember/test';\n  \n     registerWaiter(function() {\n       return myPendingTransactions() === 0;\n     });\n     ```\n     The `context` argument allows you to optionally specify the `this`\n     with which your callback will be invoked.\n  \n     For example:\n  \n     ```javascript\n     import { registerWaiter } from '@ember/test';\n  \n     registerWaiter(MyDB, MyDB.hasPendingTransactions);\n     ```\n  \n     @public\n     @for @ember/test\n     @static\n     @method registerWaiter\n     @param {Object} context (optional)\n     @param {Function} callback\n     @since 1.2.0\n  */\n\n  function registerWaiter(context, callback) {\n    if (arguments.length === 1) {\n      callback = context;\n      context = null;\n    }\n\n    if (indexOf(context, callback) > -1) {\n      return;\n    }\n\n    contexts.push(context);\n    callbacks.push(callback);\n  }\n  /**\n     `unregisterWaiter` is used to unregister a callback that was\n     registered with `registerWaiter`.\n  \n     @public\n     @for @ember/test\n     @static\n     @method unregisterWaiter\n     @param {Object} context (optional)\n     @param {Function} callback\n     @since 1.2.0\n  */\n\n\n  function unregisterWaiter(context, callback) {\n    if (!callbacks.length) {\n      return;\n    }\n\n    if (arguments.length === 1) {\n      callback = context;\n      context = null;\n    }\n\n    var i = indexOf(context, callback);\n\n    if (i === -1) {\n      return;\n    }\n\n    contexts.splice(i, 1);\n    callbacks.splice(i, 1);\n  }\n  /**\n    Iterates through each registered test waiter, and invokes\n    its callback. If any waiter returns false, this method will return\n    true indicating that the waiters have not settled yet.\n  \n    This is generally used internally from the acceptance/integration test\n    infrastructure.\n  \n    @public\n    @for @ember/test\n    @static\n    @method checkWaiters\n  */\n\n\n  function checkWaiters() {\n    if (!callbacks.length) {\n      return false;\n    }\n\n    for (var i = 0; i < callbacks.length; i++) {\n      var context = contexts[i];\n      var callback = callbacks[i];\n\n      if (!callback.call(context)) {\n        return true;\n      }\n    }\n\n    return false;\n  }\n\n  function indexOf(context, callback) {\n    for (var i = 0; i < callbacks.length; i++) {\n      if (callbacks[i] === callback && contexts[i] === context) {\n        return i;\n      }\n    }\n\n    return -1;\n  }\n});","define(\"ember/index\", [\"exports\", \"require\", \"@ember/-internals/environment\", \"node-module\", \"@ember/-internals/utils\", \"@ember/-internals/container\", \"@ember/instrumentation\", \"@ember/-internals/meta\", \"@ember/-internals/metal\", \"@ember/canary-features\", \"@ember/debug\", \"backburner\", \"@ember/-internals/console\", \"@ember/controller\", \"@ember/controller/lib/controller_mixin\", \"@ember/string\", \"@ember/service\", \"@ember/object\", \"@ember/object/compat\", \"@ember/object/computed\", \"@ember/-internals/runtime\", \"@ember/-internals/glimmer\", \"ember/version\", \"@ember/-internals/views\", \"@ember/-internals/routing\", \"@ember/-internals/extension-support\", \"@ember/error\", \"@ember/runloop\", \"@ember/-internals/error-handling\", \"@ember/-internals/owner\", \"@ember/application\", \"@ember/application/globals-resolver\", \"@ember/application/instance\", \"@ember/engine\", \"@ember/engine/instance\", \"@ember/polyfills\", \"@ember/deprecated-features\", \"@ember/component/template-only\"], function (_exports, _require, _environment, _nodeModule, utils, _container, instrumentation, _meta, metal, _canaryFeatures, EmberDebug, _backburner, _console, _controller, _controller_mixin, _string, _service, _object, _compat, _computed, _runtime, _glimmer, _version, views, routing, extensionSupport, _error, runloop, _errorHandling, _owner, _application, _globalsResolver, _instance, _engine, _instance2, _polyfills, _deprecatedFeatures, _templateOnly) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n  // eslint-disable-next-line import/no-unresolved\n  // ****@ember/-internals/environment****\n  var Ember = typeof _environment.context.imports.Ember === 'object' && _environment.context.imports.Ember || {};\n  Ember.isNamespace = true;\n\n  Ember.toString = function () {\n    return 'Ember';\n  };\n\n  Object.defineProperty(Ember, 'ENV', {\n    get: _environment.getENV,\n    enumerable: false\n  });\n  Object.defineProperty(Ember, 'lookup', {\n    get: _environment.getLookup,\n    set: _environment.setLookup,\n    enumerable: false\n  });\n\n  if (_deprecatedFeatures.EMBER_EXTEND_PROTOTYPES) {\n    Object.defineProperty(Ember, 'EXTEND_PROTOTYPES', {\n      enumerable: false,\n\n      get() {\n        (true && !(false) && (0, EmberDebug.deprecate)('Accessing Ember.EXTEND_PROTOTYPES is deprecated, please migrate to Ember.ENV.EXTEND_PROTOTYPES', false, {\n          id: 'ember-env.old-extend-prototypes',\n          until: '4.0.0'\n        }));\n        return _environment.ENV.EXTEND_PROTOTYPES;\n      }\n\n    });\n  } // ****@ember/application****\n\n\n  Ember.getOwner = _owner.getOwner;\n  Ember.setOwner = _owner.setOwner;\n  Ember.Application = _application.default;\n  Ember.ApplicationInstance = _instance.default;\n  Object.defineProperty(Ember, 'Resolver', {\n    get() {\n      (true && !(false) && (0, EmberDebug.deprecate)('Using the globals resolver is deprecated. Use the ember-resolver package instead. See https://deprecations.emberjs.com/v3.x#toc_ember-deprecate-globals-resolver', false, {\n        id: 'ember.globals-resolver',\n        until: '4.0.0',\n        url: 'https://deprecations.emberjs.com/v3.x#toc_ember-deprecate-globals-resolver'\n      }));\n      return _globalsResolver.default;\n    }\n\n  });\n  Object.defineProperty(Ember, 'DefaultResolver', {\n    get() {\n      return Ember.Resolver;\n    }\n\n  }); // ****@ember/engine****\n\n  Ember.Engine = _engine.default;\n  Ember.EngineInstance = _instance2.default; // ****@ember/polyfills****\n\n  Ember.assign = _polyfills.assign;\n  Ember.merge = _polyfills.merge; // ****@ember/-internals/utils****\n\n  Ember.generateGuid = utils.generateGuid;\n  Ember.GUID_KEY = utils.GUID_KEY;\n  Ember.guidFor = utils.guidFor;\n  Ember.inspect = utils.inspect;\n  Ember.makeArray = utils.makeArray;\n  Ember.canInvoke = utils.canInvoke;\n  Ember.tryInvoke = utils.tryInvoke;\n  Ember.wrap = utils.wrap;\n  Ember.uuid = utils.uuid; // ****@ember/-internals/container****\n\n  Ember.Container = _container.Container;\n  Ember.Registry = _container.Registry; // ****@ember/debug****\n\n  Ember.assert = EmberDebug.assert;\n  Ember.warn = EmberDebug.warn;\n  Ember.debug = EmberDebug.debug;\n  Ember.deprecate = EmberDebug.deprecate;\n  Ember.deprecateFunc = EmberDebug.deprecateFunc;\n  Ember.runInDebug = EmberDebug.runInDebug; // ****@ember/error****\n\n  Ember.Error = _error.default;\n  /**\n    @public\n    @class Ember.Debug\n  */\n\n  Ember.Debug = {\n    registerDeprecationHandler: EmberDebug.registerDeprecationHandler,\n    registerWarnHandler: EmberDebug.registerWarnHandler,\n    isComputed: metal.isComputed\n  }; // ****@ember/instrumentation****\n\n  Ember.instrument = instrumentation.instrument;\n  Ember.subscribe = instrumentation.subscribe;\n  Ember.Instrumentation = {\n    instrument: instrumentation.instrument,\n    subscribe: instrumentation.subscribe,\n    unsubscribe: instrumentation.unsubscribe,\n    reset: instrumentation.reset\n  }; // ****@ember/runloop****\n  // Using _globalsRun here so that mutating the function (adding\n  // `next`, `later`, etc to it) is only available in globals builds\n\n  Ember.run = runloop._globalsRun;\n  Ember.run.backburner = runloop.backburner;\n  Ember.run.begin = runloop.begin;\n  Ember.run.bind = runloop.bind;\n  Ember.run.cancel = runloop.cancel;\n  Ember.run.debounce = runloop.debounce;\n  Ember.run.end = runloop.end;\n  Ember.run.hasScheduledTimers = runloop.hasScheduledTimers;\n  Ember.run.join = runloop.join;\n  Ember.run.later = runloop.later;\n  Ember.run.next = runloop.next;\n  Ember.run.once = runloop.once;\n  Ember.run.schedule = runloop.schedule;\n  Ember.run.scheduleOnce = runloop.scheduleOnce;\n  Ember.run.throttle = runloop.throttle;\n  Ember.run.cancelTimers = runloop.cancelTimers;\n  Object.defineProperty(Ember.run, 'currentRunLoop', {\n    get: runloop.getCurrentRunLoop,\n    enumerable: false\n  }); // ****@ember/-internals/metal****\n  // Using _globalsComputed here so that mutating the function is only available\n  // in globals builds\n\n  var computed = metal._globalsComputed;\n  Ember.computed = computed;\n  Ember._descriptor = metal.nativeDescDecorator;\n  Ember._tracked = metal.tracked;\n  computed.alias = metal.alias;\n  Ember.cacheFor = metal.getCachedValueFor;\n  Ember.ComputedProperty = metal.ComputedProperty;\n  Object.defineProperty(Ember, '_setComputedDecorator', {\n    get() {\n      (true && !(false) && (0, EmberDebug.deprecate)('Please migrate from Ember._setComputedDecorator to Ember._setClassicDecorator', false, {\n        id: 'ember._setComputedDecorator',\n        until: '3.13.0'\n      }));\n      return metal.setClassicDecorator;\n    }\n\n  });\n  Ember._setClassicDecorator = metal.setClassicDecorator;\n  Ember.meta = _meta.meta;\n  Ember.get = metal.get;\n  Ember.getWithDefault = metal.getWithDefault;\n  Ember._getPath = metal._getPath;\n  Ember.set = metal.set;\n  Ember.trySet = metal.trySet;\n  Ember.FEATURES = (0, _polyfills.assign)({\n    isEnabled: _canaryFeatures.isEnabled\n  }, _canaryFeatures.FEATURES);\n  Ember._Cache = utils.Cache;\n  Ember.on = metal.on;\n  Ember.addListener = metal.addListener;\n  Ember.removeListener = metal.removeListener;\n  Ember.sendEvent = metal.sendEvent;\n  Ember.hasListeners = metal.hasListeners;\n  Ember.isNone = metal.isNone;\n  Ember.isEmpty = metal.isEmpty;\n  Ember.isBlank = metal.isBlank;\n  Ember.isPresent = metal.isPresent;\n  Ember.notifyPropertyChange = metal.notifyPropertyChange;\n  Ember.beginPropertyChanges = metal.beginPropertyChanges;\n  Ember.endPropertyChanges = metal.endPropertyChanges;\n  Ember.changeProperties = metal.changeProperties;\n  Ember.platform = {\n    defineProperty: true,\n    hasPropertyAccessors: true\n  };\n  Ember.defineProperty = metal.defineProperty;\n  Ember.destroy = metal.destroy;\n  Ember.libraries = metal.libraries;\n  Ember.getProperties = metal.getProperties;\n  Ember.setProperties = metal.setProperties;\n  Ember.expandProperties = metal.expandProperties;\n  Ember.addObserver = metal.addObserver;\n  Ember.removeObserver = metal.removeObserver;\n  Ember.aliasMethod = metal.aliasMethod;\n  Ember.observer = metal.observer;\n  Ember.mixin = metal.mixin;\n  Ember.Mixin = metal.Mixin;\n  /**\n    A function may be assigned to `Ember.onerror` to be called when Ember\n    internals encounter an error. This is useful for specialized error handling\n    and reporting code.\n  \n    ```javascript\n    import $ from 'jquery';\n  \n    Ember.onerror = function(error) {\n      $.ajax('/report-error', 'POST', {\n        stack: error.stack,\n        otherInformation: 'whatever app state you want to provide'\n      });\n    };\n    ```\n  \n    Internally, `Ember.onerror` is used as Backburner's error handler.\n  \n    @event onerror\n    @for Ember\n    @param {Exception} error the error object\n    @public\n  */\n\n  Object.defineProperty(Ember, 'onerror', {\n    get: _errorHandling.getOnerror,\n    set: _errorHandling.setOnerror,\n    enumerable: false\n  });\n  Object.defineProperty(Ember, 'testing', {\n    get: EmberDebug.isTesting,\n    set: EmberDebug.setTesting,\n    enumerable: false\n  });\n  Ember._Backburner = _backburner.default; // ****@ember/-internals/console****\n\n  if (_deprecatedFeatures.LOGGER) {\n    Ember.Logger = _console.default;\n  } // ****@ember/-internals/runtime****\n\n\n  Ember.A = _runtime.A;\n  Ember.String = {\n    loc: _string.loc,\n    w: _string.w,\n    dasherize: _string.dasherize,\n    decamelize: _string.decamelize,\n    camelize: _string.camelize,\n    classify: _string.classify,\n    underscore: _string.underscore,\n    capitalize: _string.capitalize\n  };\n  Ember.Object = _runtime.Object;\n  Ember._RegistryProxyMixin = _runtime.RegistryProxyMixin;\n  Ember._ContainerProxyMixin = _runtime.ContainerProxyMixin;\n  Ember.compare = _runtime.compare;\n  Ember.copy = _runtime.copy;\n  Ember.isEqual = _runtime.isEqual;\n  Ember._setFrameworkClass = _runtime.setFrameworkClass;\n  /**\n  @module ember\n  */\n\n  /**\n    Namespace for injection helper methods.\n  \n    @class inject\n    @namespace Ember\n    @static\n    @public\n  */\n\n  Ember.inject = function inject() {\n    (true && !(false) && (0, EmberDebug.assert)(`Injected properties must be created through helpers, see '${Object.keys(inject).map(k => `'inject.${k}'`).join(' or ')}'`));\n  };\n\n  Ember.inject.service = _service.inject;\n  Ember.inject.controller = _controller.inject;\n  Ember.Array = _runtime.Array;\n  Ember.Comparable = _runtime.Comparable;\n  Ember.Enumerable = _runtime.Enumerable;\n  Ember.ArrayProxy = _runtime.ArrayProxy;\n  Ember.ObjectProxy = _runtime.ObjectProxy;\n  Ember.ActionHandler = _runtime.ActionHandler;\n  Ember.CoreObject = _runtime.CoreObject;\n  Ember.NativeArray = _runtime.NativeArray;\n  Ember.Copyable = _runtime.Copyable;\n  Ember.MutableEnumerable = _runtime.MutableEnumerable;\n  Ember.MutableArray = _runtime.MutableArray;\n  Ember.TargetActionSupport = _runtime.TargetActionSupport;\n  Ember.Evented = _runtime.Evented;\n  Ember.PromiseProxyMixin = _runtime.PromiseProxyMixin;\n  Ember.Observable = _runtime.Observable;\n  Ember.typeOf = _runtime.typeOf;\n  Ember.isArray = _runtime.isArray;\n  Ember.Object = _runtime.Object;\n  Ember.onLoad = _application.onLoad;\n  Ember.runLoadHooks = _application.runLoadHooks;\n  Ember.Controller = _controller.default;\n  Ember.ControllerMixin = _controller_mixin.default;\n  Ember.Service = _service.default;\n  Ember._ProxyMixin = _runtime._ProxyMixin;\n  Ember.RSVP = _runtime.RSVP;\n  Ember.Namespace = _runtime.Namespace;\n  Ember._action = _object.action;\n  Ember._dependentKeyCompat = _compat.dependentKeyCompat;\n  computed.empty = _computed.empty;\n  computed.notEmpty = _computed.notEmpty;\n  computed.none = _computed.none;\n  computed.not = _computed.not;\n  computed.bool = _computed.bool;\n  computed.match = _computed.match;\n  computed.equal = _computed.equal;\n  computed.gt = _computed.gt;\n  computed.gte = _computed.gte;\n  computed.lt = _computed.lt;\n  computed.lte = _computed.lte;\n  computed.oneWay = _computed.oneWay;\n  computed.reads = _computed.oneWay;\n  computed.readOnly = _computed.readOnly;\n  computed.deprecatingAlias = _computed.deprecatingAlias;\n  computed.and = _computed.and;\n  computed.or = _computed.or;\n  computed.sum = _computed.sum;\n  computed.min = _computed.min;\n  computed.max = _computed.max;\n  computed.map = _computed.map;\n  computed.sort = _computed.sort;\n  computed.setDiff = _computed.setDiff;\n  computed.mapBy = _computed.mapBy;\n  computed.filter = _computed.filter;\n  computed.filterBy = _computed.filterBy;\n  computed.uniq = _computed.uniq;\n  computed.uniqBy = _computed.uniqBy;\n  computed.union = _computed.union;\n  computed.intersect = _computed.intersect;\n  computed.collect = _computed.collect;\n  /**\n    Defines the hash of localized strings for the current language. Used by\n    the `String.loc` helper. To localize, add string values to this\n    hash.\n  \n    @property STRINGS\n    @for Ember\n    @type Object\n    @private\n  */\n\n  Object.defineProperty(Ember, 'STRINGS', {\n    configurable: false,\n    get: _string._getStrings,\n    set: _string._setStrings\n  });\n  /**\n    Whether searching on the global for new Namespace instances is enabled.\n  \n    This is only exported here as to not break any addons.  Given the new\n    visit API, you will have issues if you treat this as a indicator of\n    booted.\n  \n    Internally this is only exposing a flag in Namespace.\n  \n    @property BOOTED\n    @for Ember\n    @type Boolean\n    @private\n  */\n\n  Object.defineProperty(Ember, 'BOOTED', {\n    configurable: false,\n    enumerable: false,\n    get: metal.isNamespaceSearchDisabled,\n    set: metal.setNamespaceSearchDisabled\n  }); // ****@ember/-internals/glimmer****\n\n  Ember.Component = _glimmer.Component;\n  _glimmer.Helper.helper = _glimmer.helper;\n  Ember.Helper = _glimmer.Helper;\n  Ember.Checkbox = _glimmer.Checkbox;\n  Ember.TextField = _glimmer.TextField;\n  Ember.TextArea = _glimmer.TextArea;\n  Ember.LinkComponent = _glimmer.LinkComponent;\n  Ember._setComponentManager = _glimmer.setComponentManager;\n  Ember._componentManagerCapabilities = _glimmer.capabilities;\n  Ember._setModifierManager = _glimmer.setModifierManager;\n  Ember._modifierManagerCapabilities = _glimmer.modifierCapabilities;\n\n  if (true\n  /* EMBER_GLIMMER_SET_COMPONENT_TEMPLATE */\n  ) {\n      Ember._getComponentTemplate = _glimmer.getComponentTemplate;\n      Ember._setComponentTemplate = _glimmer.setComponentTemplate;\n      Ember._templateOnlyComponent = _templateOnly.default;\n    }\n\n  Ember._captureRenderTree = EmberDebug.captureRenderTree;\n  Ember.Handlebars = {\n    template: _glimmer.template,\n    Utils: {\n      escapeExpression: _glimmer.escapeExpression\n    }\n  };\n  Ember.HTMLBars = {\n    template: _glimmer.template\n  };\n\n  if (_environment.ENV.EXTEND_PROTOTYPES.String) {\n    String.prototype.htmlSafe = function () {\n      return (0, _glimmer.htmlSafe)(this);\n    };\n  }\n\n  Ember.String.htmlSafe = _glimmer.htmlSafe;\n  Ember.String.isHTMLSafe = _glimmer.isHTMLSafe;\n  /**\n    Global hash of shared templates. This will automatically be populated\n    by the build tools so that you can store your Handlebars templates in\n    separate files that get loaded into JavaScript at buildtime.\n  \n    @property TEMPLATES\n    @for Ember\n    @type Object\n    @private\n  */\n\n  Object.defineProperty(Ember, 'TEMPLATES', {\n    get: _glimmer.getTemplates,\n    set: _glimmer.setTemplates,\n    configurable: false,\n    enumerable: false\n  });\n  /**\n    The semantic version\n  \n    @property VERSION\n    @type String\n    @public\n  */\n\n  Ember.VERSION = _version.default; // ****@ember/-internals/views****\n\n  if (_deprecatedFeatures.JQUERY_INTEGRATION && !views.jQueryDisabled) {\n    Object.defineProperty(Ember, '$', {\n      get() {\n        (true && !(false) && (0, EmberDebug.deprecate)(\"Using Ember.$() has been deprecated, use `import jQuery from 'jquery';` instead\", false, {\n          id: 'ember-views.curly-components.jquery-element',\n          until: '4.0.0',\n          url: 'https://emberjs.com/deprecations/v3.x#toc_jquery-apis'\n        }));\n        return views.jQuery;\n      },\n\n      configurable: true,\n      enumerable: true\n    });\n  }\n\n  Ember.ViewUtils = {\n    isSimpleClick: views.isSimpleClick,\n    getElementView: views.getElementView,\n    getViewElement: views.getViewElement,\n    getViewBounds: views.getViewBounds,\n    getViewClientRects: views.getViewClientRects,\n    getViewBoundingClientRect: views.getViewBoundingClientRect,\n    getRootViews: views.getRootViews,\n    getChildViews: views.getChildViews,\n    isSerializationFirstNode: _glimmer.isSerializationFirstNode\n  };\n  Ember.TextSupport = views.TextSupport;\n  Ember.ComponentLookup = views.ComponentLookup;\n  Ember.EventDispatcher = views.EventDispatcher; // ****@ember/-internals/routing****\n\n  Ember.Location = routing.Location;\n  Ember.AutoLocation = routing.AutoLocation;\n  Ember.HashLocation = routing.HashLocation;\n  Ember.HistoryLocation = routing.HistoryLocation;\n  Ember.NoneLocation = routing.NoneLocation;\n  Ember.controllerFor = routing.controllerFor;\n  Ember.generateControllerFactory = routing.generateControllerFactory;\n  Ember.generateController = routing.generateController;\n  Ember.RouterDSL = routing.RouterDSL;\n  Ember.Router = routing.Router;\n  Ember.Route = routing.Route;\n  (0, _application.runLoadHooks)('Ember.Application', _application.default);\n  Ember.DataAdapter = extensionSupport.DataAdapter;\n  Ember.ContainerDebugAdapter = extensionSupport.ContainerDebugAdapter;\n\n  if ((0, _require.has)('ember-template-compiler')) {\n    (0, _require.default)(\"ember-template-compiler\");\n  } // do this to ensure that Ember.Test is defined properly on the global\n  // if it is present.\n\n\n  if ((0, _require.has)('ember-testing')) {\n    var testing = (0, _require.default)(\"ember-testing\");\n    Ember.Test = testing.Test;\n    Ember.Test.Adapter = testing.Adapter;\n    Ember.Test.QUnitAdapter = testing.QUnitAdapter;\n    Ember.setupForTesting = testing.setupForTesting;\n  }\n\n  (0, _application.runLoadHooks)('Ember');\n  var _default = Ember;\n  _exports.default = _default;\n\n  if (_nodeModule.IS_NODE) {\n    _nodeModule.module.exports = Ember;\n  } else {\n    _environment.context.exports.Ember = _environment.context.exports.Em = Ember;\n  }\n  /**\n   @module jquery\n   @public\n   */\n\n  /**\n   @class jquery\n   @public\n   @static\n   */\n\n  /**\n    Alias for jQuery\n  \n    @for jquery\n    @method $\n    @static\n    @public\n  */\n\n});","define(\"ember/version\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n  var _default = \"3.18.1\";\n  _exports.default = _default;\n});","define(\"node-module/index\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.require = _exports.module = _exports.IS_NODE = void 0;\n\n  /*global module */\n  var IS_NODE = typeof module === 'object' && typeof module.require === 'function';\n  _exports.IS_NODE = IS_NODE;\n  var exportModule;\n  _exports.module = exportModule;\n  var exportRequire;\n  _exports.require = exportRequire;\n\n  if (IS_NODE) {\n    _exports.module = exportModule = module;\n    _exports.require = exportRequire = module.require;\n  } else {\n    _exports.module = exportModule = null;\n    _exports.require = exportRequire = null;\n  }\n});","define(\"route-recognizer\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n  var createObject = Object.create;\n\n  function createMap() {\n    var map = createObject(null);\n    map[\"__\"] = undefined;\n    delete map[\"__\"];\n    return map;\n  }\n\n  var Target = function Target(path, matcher, delegate) {\n    this.path = path;\n    this.matcher = matcher;\n    this.delegate = delegate;\n  };\n\n  Target.prototype.to = function to(target, callback) {\n    var delegate = this.delegate;\n\n    if (delegate && delegate.willAddRoute) {\n      target = delegate.willAddRoute(this.matcher.target, target);\n    }\n\n    this.matcher.add(this.path, target);\n\n    if (callback) {\n      if (callback.length === 0) {\n        throw new Error(\"You must have an argument in the function passed to `to`\");\n      }\n\n      this.matcher.addChild(this.path, target, callback, this.delegate);\n    }\n  };\n\n  var Matcher = function Matcher(target) {\n    this.routes = createMap();\n    this.children = createMap();\n    this.target = target;\n  };\n\n  Matcher.prototype.add = function add(path, target) {\n    this.routes[path] = target;\n  };\n\n  Matcher.prototype.addChild = function addChild(path, target, callback, delegate) {\n    var matcher = new Matcher(target);\n    this.children[path] = matcher;\n    var match = generateMatch(path, matcher, delegate);\n\n    if (delegate && delegate.contextEntered) {\n      delegate.contextEntered(target, match);\n    }\n\n    callback(match);\n  };\n\n  function generateMatch(startingPath, matcher, delegate) {\n    function match(path, callback) {\n      var fullPath = startingPath + path;\n\n      if (callback) {\n        callback(generateMatch(fullPath, matcher, delegate));\n      } else {\n        return new Target(fullPath, matcher, delegate);\n      }\n    }\n\n    return match;\n  }\n\n  function addRoute(routeArray, path, handler) {\n    var len = 0;\n\n    for (var i = 0; i < routeArray.length; i++) {\n      len += routeArray[i].path.length;\n    }\n\n    path = path.substr(len);\n    var route = {\n      path: path,\n      handler: handler\n    };\n    routeArray.push(route);\n  }\n\n  function eachRoute(baseRoute, matcher, callback, binding) {\n    var routes = matcher.routes;\n    var paths = Object.keys(routes);\n\n    for (var i = 0; i < paths.length; i++) {\n      var path = paths[i];\n      var routeArray = baseRoute.slice();\n      addRoute(routeArray, path, routes[path]);\n      var nested = matcher.children[path];\n\n      if (nested) {\n        eachRoute(routeArray, nested, callback, binding);\n      } else {\n        callback.call(binding, routeArray);\n      }\n    }\n  }\n\n  var map = function (callback, addRouteCallback) {\n    var matcher = new Matcher();\n    callback(generateMatch(\"\", matcher, this.delegate));\n    eachRoute([], matcher, function (routes) {\n      if (addRouteCallback) {\n        addRouteCallback(this, routes);\n      } else {\n        this.add(routes);\n      }\n    }, this);\n  }; // Normalizes percent-encoded values in `path` to upper-case and decodes percent-encoded\n  // values that are not reserved (i.e., unicode characters, emoji, etc). The reserved\n  // chars are \"/\" and \"%\".\n  // Safe to call multiple times on the same path.\n  // Normalizes percent-encoded values in `path` to upper-case and decodes percent-encoded\n\n\n  function normalizePath(path) {\n    return path.split(\"/\").map(normalizeSegment).join(\"/\");\n  } // We want to ensure the characters \"%\" and \"/\" remain in percent-encoded\n  // form when normalizing paths, so replace them with their encoded form after\n  // decoding the rest of the path\n\n\n  var SEGMENT_RESERVED_CHARS = /%|\\//g;\n\n  function normalizeSegment(segment) {\n    if (segment.length < 3 || segment.indexOf(\"%\") === -1) {\n      return segment;\n    }\n\n    return decodeURIComponent(segment).replace(SEGMENT_RESERVED_CHARS, encodeURIComponent);\n  } // We do not want to encode these characters when generating dynamic path segments\n  // See https://tools.ietf.org/html/rfc3986#section-3.3\n  // sub-delims: \"!\", \"$\", \"&\", \"'\", \"(\", \")\", \"*\", \"+\", \",\", \";\", \"=\"\n  // others allowed by RFC 3986: \":\", \"@\"\n  //\n  // First encode the entire path segment, then decode any of the encoded special chars.\n  //\n  // The chars \"!\", \"'\", \"(\", \")\", \"*\" do not get changed by `encodeURIComponent`,\n  // so the possible encoded chars are:\n  // ['%24', '%26', '%2B', '%2C', '%3B', '%3D', '%3A', '%40'].\n\n\n  var PATH_SEGMENT_ENCODINGS = /%(?:2(?:4|6|B|C)|3(?:B|D|A)|40)/g;\n\n  function encodePathSegment(str) {\n    return encodeURIComponent(str).replace(PATH_SEGMENT_ENCODINGS, decodeURIComponent);\n  }\n\n  var escapeRegex = /(\\/|\\.|\\*|\\+|\\?|\\||\\(|\\)|\\[|\\]|\\{|\\}|\\\\)/g;\n  var isArray = Array.isArray;\n  var hasOwnProperty = Object.prototype.hasOwnProperty;\n\n  function getParam(params, key) {\n    if (typeof params !== \"object\" || params === null) {\n      throw new Error(\"You must pass an object as the second argument to `generate`.\");\n    }\n\n    if (!hasOwnProperty.call(params, key)) {\n      throw new Error(\"You must provide param `\" + key + \"` to `generate`.\");\n    }\n\n    var value = params[key];\n    var str = typeof value === \"string\" ? value : \"\" + value;\n\n    if (str.length === 0) {\n      throw new Error(\"You must provide a param `\" + key + \"`.\");\n    }\n\n    return str;\n  }\n\n  var eachChar = [];\n\n  eachChar[0\n  /* Static */\n  ] = function (segment, currentState) {\n    var state = currentState;\n    var value = segment.value;\n\n    for (var i = 0; i < value.length; i++) {\n      var ch = value.charCodeAt(i);\n      state = state.put(ch, false, false);\n    }\n\n    return state;\n  };\n\n  eachChar[1\n  /* Dynamic */\n  ] = function (_, currentState) {\n    return currentState.put(47\n    /* SLASH */\n    , true, true);\n  };\n\n  eachChar[2\n  /* Star */\n  ] = function (_, currentState) {\n    return currentState.put(-1\n    /* ANY */\n    , false, true);\n  };\n\n  eachChar[4\n  /* Epsilon */\n  ] = function (_, currentState) {\n    return currentState;\n  };\n\n  var regex = [];\n\n  regex[0\n  /* Static */\n  ] = function (segment) {\n    return segment.value.replace(escapeRegex, \"\\\\$1\");\n  };\n\n  regex[1\n  /* Dynamic */\n  ] = function () {\n    return \"([^/]+)\";\n  };\n\n  regex[2\n  /* Star */\n  ] = function () {\n    return \"(.+)\";\n  };\n\n  regex[4\n  /* Epsilon */\n  ] = function () {\n    return \"\";\n  };\n\n  var generate = [];\n\n  generate[0\n  /* Static */\n  ] = function (segment) {\n    return segment.value;\n  };\n\n  generate[1\n  /* Dynamic */\n  ] = function (segment, params) {\n    var value = getParam(params, segment.value);\n\n    if (RouteRecognizer.ENCODE_AND_DECODE_PATH_SEGMENTS) {\n      return encodePathSegment(value);\n    } else {\n      return value;\n    }\n  };\n\n  generate[2\n  /* Star */\n  ] = function (segment, params) {\n    return getParam(params, segment.value);\n  };\n\n  generate[4\n  /* Epsilon */\n  ] = function () {\n    return \"\";\n  };\n\n  var EmptyObject = Object.freeze({});\n  var EmptyArray = Object.freeze([]); // The `names` will be populated with the paramter name for each dynamic/star\n  // segment. `shouldDecodes` will be populated with a boolean for each dyanamic/star\n  // segment, indicating whether it should be decoded during recognition.\n\n  function parse(segments, route, types) {\n    // normalize route as not starting with a \"/\". Recognition will\n    // also normalize.\n    if (route.length > 0 && route.charCodeAt(0) === 47\n    /* SLASH */\n    ) {\n        route = route.substr(1);\n      }\n\n    var parts = route.split(\"/\");\n    var names = undefined;\n    var shouldDecodes = undefined;\n\n    for (var i = 0; i < parts.length; i++) {\n      var part = parts[i];\n      var flags = 0;\n      var type = 0;\n\n      if (part === \"\") {\n        type = 4\n        /* Epsilon */\n        ;\n      } else if (part.charCodeAt(0) === 58\n      /* COLON */\n      ) {\n          type = 1\n          /* Dynamic */\n          ;\n        } else if (part.charCodeAt(0) === 42\n      /* STAR */\n      ) {\n          type = 2\n          /* Star */\n          ;\n        } else {\n        type = 0\n        /* Static */\n        ;\n      }\n\n      flags = 2 << type;\n\n      if (flags & 12\n      /* Named */\n      ) {\n          part = part.slice(1);\n          names = names || [];\n          names.push(part);\n          shouldDecodes = shouldDecodes || [];\n          shouldDecodes.push((flags & 4\n          /* Decoded */\n          ) !== 0);\n        }\n\n      if (flags & 14\n      /* Counted */\n      ) {\n          types[type]++;\n        }\n\n      segments.push({\n        type: type,\n        value: normalizeSegment(part)\n      });\n    }\n\n    return {\n      names: names || EmptyArray,\n      shouldDecodes: shouldDecodes || EmptyArray\n    };\n  }\n\n  function isEqualCharSpec(spec, char, negate) {\n    return spec.char === char && spec.negate === negate;\n  } // A State has a character specification and (`charSpec`) and a list of possible\n  // subsequent states (`nextStates`).\n  //\n  // If a State is an accepting state, it will also have several additional\n  // properties:\n  //\n  // * `regex`: A regular expression that is used to extract parameters from paths\n  //   that reached this accepting state.\n  // * `handlers`: Information on how to convert the list of captures into calls\n  //   to registered handlers with the specified parameters\n  // * `types`: How many static, dynamic or star segments in this route. Used to\n  //   decide which route to use if multiple registered routes match a path.\n  //\n  // Currently, State is implemented naively by looping over `nextStates` and\n  // comparing a character specification against a character. A more efficient\n  // implementation would use a hash of keys pointing at one or more next states.\n\n\n  var State = function State(states, id, char, negate, repeat) {\n    this.states = states;\n    this.id = id;\n    this.char = char;\n    this.negate = negate;\n    this.nextStates = repeat ? id : null;\n    this.pattern = \"\";\n    this._regex = undefined;\n    this.handlers = undefined;\n    this.types = undefined;\n  };\n\n  State.prototype.regex = function regex$1() {\n    if (!this._regex) {\n      this._regex = new RegExp(this.pattern);\n    }\n\n    return this._regex;\n  };\n\n  State.prototype.get = function get(char, negate) {\n    var this$1 = this;\n    var nextStates = this.nextStates;\n\n    if (nextStates === null) {\n      return;\n    }\n\n    if (isArray(nextStates)) {\n      for (var i = 0; i < nextStates.length; i++) {\n        var child = this$1.states[nextStates[i]];\n\n        if (isEqualCharSpec(child, char, negate)) {\n          return child;\n        }\n      }\n    } else {\n      var child$1 = this.states[nextStates];\n\n      if (isEqualCharSpec(child$1, char, negate)) {\n        return child$1;\n      }\n    }\n  };\n\n  State.prototype.put = function put(char, negate, repeat) {\n    var state; // If the character specification already exists in a child of the current\n    // state, just return that state.\n\n    if (state = this.get(char, negate)) {\n      return state;\n    } // Make a new state for the character spec\n\n\n    var states = this.states;\n    state = new State(states, states.length, char, negate, repeat);\n    states[states.length] = state; // Insert the new state as a child of the current state\n\n    if (this.nextStates == null) {\n      this.nextStates = state.id;\n    } else if (isArray(this.nextStates)) {\n      this.nextStates.push(state.id);\n    } else {\n      this.nextStates = [this.nextStates, state.id];\n    } // Return the new state\n\n\n    return state;\n  }; // Find a list of child states matching the next character\n\n\n  State.prototype.match = function match(ch) {\n    var this$1 = this;\n    var nextStates = this.nextStates;\n\n    if (!nextStates) {\n      return [];\n    }\n\n    var returned = [];\n\n    if (isArray(nextStates)) {\n      for (var i = 0; i < nextStates.length; i++) {\n        var child = this$1.states[nextStates[i]];\n\n        if (isMatch(child, ch)) {\n          returned.push(child);\n        }\n      }\n    } else {\n      var child$1 = this.states[nextStates];\n\n      if (isMatch(child$1, ch)) {\n        returned.push(child$1);\n      }\n    }\n\n    return returned;\n  };\n\n  function isMatch(spec, char) {\n    return spec.negate ? spec.char !== char && spec.char !== -1\n    /* ANY */\n    : spec.char === char || spec.char === -1\n    /* ANY */\n    ;\n  } // This is a somewhat naive strategy, but should work in a lot of cases\n  // A better strategy would properly resolve /posts/:id/new and /posts/edit/:id.\n  //\n  // This strategy generally prefers more static and less dynamic matching.\n  // Specifically, it\n  //\n  //  * prefers fewer stars to more, then\n  //  * prefers using stars for less of the match to more, then\n  //  * prefers fewer dynamic segments to more, then\n  //  * prefers more static segments to more\n\n\n  function sortSolutions(states) {\n    return states.sort(function (a, b) {\n      var ref = a.types || [0, 0, 0];\n      var astatics = ref[0];\n      var adynamics = ref[1];\n      var astars = ref[2];\n      var ref$1 = b.types || [0, 0, 0];\n      var bstatics = ref$1[0];\n      var bdynamics = ref$1[1];\n      var bstars = ref$1[2];\n\n      if (astars !== bstars) {\n        return astars - bstars;\n      }\n\n      if (astars) {\n        if (astatics !== bstatics) {\n          return bstatics - astatics;\n        }\n\n        if (adynamics !== bdynamics) {\n          return bdynamics - adynamics;\n        }\n      }\n\n      if (adynamics !== bdynamics) {\n        return adynamics - bdynamics;\n      }\n\n      if (astatics !== bstatics) {\n        return bstatics - astatics;\n      }\n\n      return 0;\n    });\n  }\n\n  function recognizeChar(states, ch) {\n    var nextStates = [];\n\n    for (var i = 0, l = states.length; i < l; i++) {\n      var state = states[i];\n      nextStates = nextStates.concat(state.match(ch));\n    }\n\n    return nextStates;\n  }\n\n  var RecognizeResults = function RecognizeResults(queryParams) {\n    this.length = 0;\n    this.queryParams = queryParams || {};\n  };\n\n  RecognizeResults.prototype.splice = Array.prototype.splice;\n  RecognizeResults.prototype.slice = Array.prototype.slice;\n  RecognizeResults.prototype.push = Array.prototype.push;\n\n  function findHandler(state, originalPath, queryParams) {\n    var handlers = state.handlers;\n    var regex = state.regex();\n\n    if (!regex || !handlers) {\n      throw new Error(\"state not initialized\");\n    }\n\n    var captures = originalPath.match(regex);\n    var currentCapture = 1;\n    var result = new RecognizeResults(queryParams);\n    result.length = handlers.length;\n\n    for (var i = 0; i < handlers.length; i++) {\n      var handler = handlers[i];\n      var names = handler.names;\n      var shouldDecodes = handler.shouldDecodes;\n      var params = EmptyObject;\n      var isDynamic = false;\n\n      if (names !== EmptyArray && shouldDecodes !== EmptyArray) {\n        for (var j = 0; j < names.length; j++) {\n          isDynamic = true;\n          var name = names[j];\n          var capture = captures && captures[currentCapture++];\n\n          if (params === EmptyObject) {\n            params = {};\n          }\n\n          if (RouteRecognizer.ENCODE_AND_DECODE_PATH_SEGMENTS && shouldDecodes[j]) {\n            params[name] = capture && decodeURIComponent(capture);\n          } else {\n            params[name] = capture;\n          }\n        }\n      }\n\n      result[i] = {\n        handler: handler.handler,\n        params: params,\n        isDynamic: isDynamic\n      };\n    }\n\n    return result;\n  }\n\n  function decodeQueryParamPart(part) {\n    // http://www.w3.org/TR/html401/interact/forms.html#h-17.13.4.1\n    part = part.replace(/\\+/gm, \"%20\");\n    var result;\n\n    try {\n      result = decodeURIComponent(part);\n    } catch (error) {\n      result = \"\";\n    }\n\n    return result;\n  }\n\n  var RouteRecognizer = function RouteRecognizer() {\n    this.names = createMap();\n    var states = [];\n    var state = new State(states, 0, -1\n    /* ANY */\n    , true, false);\n    states[0] = state;\n    this.states = states;\n    this.rootState = state;\n  };\n\n  RouteRecognizer.prototype.add = function add(routes, options) {\n    var currentState = this.rootState;\n    var pattern = \"^\";\n    var types = [0, 0, 0];\n    var handlers = new Array(routes.length);\n    var allSegments = [];\n    var isEmpty = true;\n    var j = 0;\n\n    for (var i = 0; i < routes.length; i++) {\n      var route = routes[i];\n      var ref = parse(allSegments, route.path, types);\n      var names = ref.names;\n      var shouldDecodes = ref.shouldDecodes; // preserve j so it points to the start of newly added segments\n\n      for (; j < allSegments.length; j++) {\n        var segment = allSegments[j];\n\n        if (segment.type === 4\n        /* Epsilon */\n        ) {\n            continue;\n          }\n\n        isEmpty = false; // Add a \"/\" for the new segment\n\n        currentState = currentState.put(47\n        /* SLASH */\n        , false, false);\n        pattern += \"/\"; // Add a representation of the segment to the NFA and regex\n\n        currentState = eachChar[segment.type](segment, currentState);\n        pattern += regex[segment.type](segment);\n      }\n\n      handlers[i] = {\n        handler: route.handler,\n        names: names,\n        shouldDecodes: shouldDecodes\n      };\n    }\n\n    if (isEmpty) {\n      currentState = currentState.put(47\n      /* SLASH */\n      , false, false);\n      pattern += \"/\";\n    }\n\n    currentState.handlers = handlers;\n    currentState.pattern = pattern + \"$\";\n    currentState.types = types;\n    var name;\n\n    if (typeof options === \"object\" && options !== null && options.as) {\n      name = options.as;\n    }\n\n    if (name) {\n      // if (this.names[name]) {\n      //   throw new Error(\"You may not add a duplicate route named `\" + name + \"`.\");\n      // }\n      this.names[name] = {\n        segments: allSegments,\n        handlers: handlers\n      };\n    }\n  };\n\n  RouteRecognizer.prototype.handlersFor = function handlersFor(name) {\n    var route = this.names[name];\n\n    if (!route) {\n      throw new Error(\"There is no route named \" + name);\n    }\n\n    var result = new Array(route.handlers.length);\n\n    for (var i = 0; i < route.handlers.length; i++) {\n      var handler = route.handlers[i];\n      result[i] = handler;\n    }\n\n    return result;\n  };\n\n  RouteRecognizer.prototype.hasRoute = function hasRoute(name) {\n    return !!this.names[name];\n  };\n\n  RouteRecognizer.prototype.generate = function generate$1(name, params) {\n    var route = this.names[name];\n    var output = \"\";\n\n    if (!route) {\n      throw new Error(\"There is no route named \" + name);\n    }\n\n    var segments = route.segments;\n\n    for (var i = 0; i < segments.length; i++) {\n      var segment = segments[i];\n\n      if (segment.type === 4\n      /* Epsilon */\n      ) {\n          continue;\n        }\n\n      output += \"/\";\n      output += generate[segment.type](segment, params);\n    }\n\n    if (output.charAt(0) !== \"/\") {\n      output = \"/\" + output;\n    }\n\n    if (params && params.queryParams) {\n      output += this.generateQueryString(params.queryParams);\n    }\n\n    return output;\n  };\n\n  RouteRecognizer.prototype.generateQueryString = function generateQueryString(params) {\n    var pairs = [];\n    var keys = Object.keys(params);\n    keys.sort();\n\n    for (var i = 0; i < keys.length; i++) {\n      var key = keys[i];\n      var value = params[key];\n\n      if (value == null) {\n        continue;\n      }\n\n      var pair = encodeURIComponent(key);\n\n      if (isArray(value)) {\n        for (var j = 0; j < value.length; j++) {\n          var arrayPair = key + \"[]\" + \"=\" + encodeURIComponent(value[j]);\n          pairs.push(arrayPair);\n        }\n      } else {\n        pair += \"=\" + encodeURIComponent(value);\n        pairs.push(pair);\n      }\n    }\n\n    if (pairs.length === 0) {\n      return \"\";\n    }\n\n    return \"?\" + pairs.join(\"&\");\n  };\n\n  RouteRecognizer.prototype.parseQueryString = function parseQueryString(queryString) {\n    var pairs = queryString.split(\"&\");\n    var queryParams = {};\n\n    for (var i = 0; i < pairs.length; i++) {\n      var pair = pairs[i].split(\"=\"),\n          key = decodeQueryParamPart(pair[0]),\n          keyLength = key.length,\n          isArray = false,\n          value = void 0;\n\n      if (pair.length === 1) {\n        value = \"true\";\n      } else {\n        // Handle arrays\n        if (keyLength > 2 && key.slice(keyLength - 2) === \"[]\") {\n          isArray = true;\n          key = key.slice(0, keyLength - 2);\n\n          if (!queryParams[key]) {\n            queryParams[key] = [];\n          }\n        }\n\n        value = pair[1] ? decodeQueryParamPart(pair[1]) : \"\";\n      }\n\n      if (isArray) {\n        queryParams[key].push(value);\n      } else {\n        queryParams[key] = value;\n      }\n    }\n\n    return queryParams;\n  };\n\n  RouteRecognizer.prototype.recognize = function recognize(path) {\n    var results;\n    var states = [this.rootState];\n    var queryParams = {};\n    var isSlashDropped = false;\n    var hashStart = path.indexOf(\"#\");\n\n    if (hashStart !== -1) {\n      path = path.substr(0, hashStart);\n    }\n\n    var queryStart = path.indexOf(\"?\");\n\n    if (queryStart !== -1) {\n      var queryString = path.substr(queryStart + 1, path.length);\n      path = path.substr(0, queryStart);\n      queryParams = this.parseQueryString(queryString);\n    }\n\n    if (path.charAt(0) !== \"/\") {\n      path = \"/\" + path;\n    }\n\n    var originalPath = path;\n\n    if (RouteRecognizer.ENCODE_AND_DECODE_PATH_SEGMENTS) {\n      path = normalizePath(path);\n    } else {\n      path = decodeURI(path);\n      originalPath = decodeURI(originalPath);\n    }\n\n    var pathLen = path.length;\n\n    if (pathLen > 1 && path.charAt(pathLen - 1) === \"/\") {\n      path = path.substr(0, pathLen - 1);\n      originalPath = originalPath.substr(0, originalPath.length - 1);\n      isSlashDropped = true;\n    }\n\n    for (var i = 0; i < path.length; i++) {\n      states = recognizeChar(states, path.charCodeAt(i));\n\n      if (!states.length) {\n        break;\n      }\n    }\n\n    var solutions = [];\n\n    for (var i$1 = 0; i$1 < states.length; i$1++) {\n      if (states[i$1].handlers) {\n        solutions.push(states[i$1]);\n      }\n    }\n\n    states = sortSolutions(solutions);\n    var state = solutions[0];\n\n    if (state && state.handlers) {\n      // if a trailing slash was dropped and a star segment is the last segment\n      // specified, put the trailing slash back\n      if (isSlashDropped && state.pattern && state.pattern.slice(-5) === \"(.+)$\") {\n        originalPath = originalPath + \"/\";\n      }\n\n      results = findHandler(state, originalPath, queryParams);\n    }\n\n    return results;\n  };\n\n  RouteRecognizer.VERSION = \"0.3.4\"; // Set to false to opt-out of encoding and decoding path segments.\n  // See https://github.com/tildeio/route-recognizer/pull/55\n\n  RouteRecognizer.ENCODE_AND_DECODE_PATH_SEGMENTS = true;\n  RouteRecognizer.Normalizer = {\n    normalizeSegment: normalizeSegment,\n    normalizePath: normalizePath,\n    encodePathSegment: encodePathSegment\n  };\n  RouteRecognizer.prototype.map = map;\n  var _default = RouteRecognizer;\n  _exports.default = _default;\n});","define(\"router_js\", [\"exports\", \"@ember/polyfills\", \"rsvp\", \"route-recognizer\"], function (_exports, _polyfills, _rsvp, _routeRecognizer) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.logAbort = logAbort;\n  _exports.InternalRouteInfo = _exports.TransitionError = _exports.TransitionState = _exports.QUERY_PARAMS_SYMBOL = _exports.PARAMS_SYMBOL = _exports.STATE_SYMBOL = _exports.InternalTransition = _exports.default = void 0;\n\n  var TransitionAbortedError = function () {\n    TransitionAbortedError.prototype = Object.create(Error.prototype);\n    TransitionAbortedError.prototype.constructor = TransitionAbortedError;\n\n    function TransitionAbortedError(message) {\n      var error = Error.call(this, message);\n      this.name = 'TransitionAborted';\n      this.message = message || 'TransitionAborted';\n\n      if (Error.captureStackTrace) {\n        Error.captureStackTrace(this, TransitionAbortedError);\n      } else {\n        this.stack = error.stack;\n      }\n    }\n\n    return TransitionAbortedError;\n  }();\n\n  var slice = Array.prototype.slice;\n  var hasOwnProperty = Object.prototype.hasOwnProperty;\n  /**\n    Determines if an object is Promise by checking if it is \"thenable\".\n  **/\n\n  function isPromise(p) {\n    return p !== null && typeof p === 'object' && typeof p.then === 'function';\n  }\n\n  function merge(hash, other) {\n    for (var prop in other) {\n      if (hasOwnProperty.call(other, prop)) {\n        hash[prop] = other[prop];\n      }\n    }\n  }\n  /**\n    @private\n  \n    Extracts query params from the end of an array\n  **/\n\n\n  function extractQueryParams(array) {\n    var len = array && array.length,\n        head,\n        queryParams;\n\n    if (len && len > 0) {\n      var obj = array[len - 1];\n\n      if (isQueryParams(obj)) {\n        queryParams = obj.queryParams;\n        head = slice.call(array, 0, len - 1);\n        return [head, queryParams];\n      }\n    }\n\n    return [array, null];\n  }\n\n  function isQueryParams(obj) {\n    return obj && hasOwnProperty.call(obj, 'queryParams');\n  }\n  /**\n    @private\n  \n    Coerces query param properties and array elements into strings.\n  **/\n\n\n  function coerceQueryParamsToString(queryParams) {\n    for (var key in queryParams) {\n      var val = queryParams[key];\n\n      if (typeof val === 'number') {\n        queryParams[key] = '' + val;\n      } else if (Array.isArray(val)) {\n        for (var i = 0, l = val.length; i < l; i++) {\n          val[i] = '' + val[i];\n        }\n      }\n    }\n  }\n  /**\n    @private\n   */\n\n\n  function log(router, ...args) {\n    if (!router.log) {\n      return;\n    }\n\n    if (args.length === 2) {\n      var [sequence, msg] = args;\n      router.log('Transition #' + sequence + ': ' + msg);\n    } else {\n      var [_msg] = args;\n      router.log(_msg);\n    }\n  }\n\n  function isParam(object) {\n    return typeof object === 'string' || object instanceof String || typeof object === 'number' || object instanceof Number;\n  }\n\n  function forEach(array, callback) {\n    for (var i = 0, l = array.length; i < l && callback(array[i]) !== false; i++) {// empty intentionally\n    }\n  }\n\n  function getChangelist(oldObject, newObject) {\n    var key;\n    var results = {\n      all: {},\n      changed: {},\n      removed: {}\n    };\n    merge(results.all, newObject);\n    var didChange = false;\n    coerceQueryParamsToString(oldObject);\n    coerceQueryParamsToString(newObject); // Calculate removals\n\n    for (key in oldObject) {\n      if (hasOwnProperty.call(oldObject, key)) {\n        if (!hasOwnProperty.call(newObject, key)) {\n          didChange = true;\n          results.removed[key] = oldObject[key];\n        }\n      }\n    } // Calculate changes\n\n\n    for (key in newObject) {\n      if (hasOwnProperty.call(newObject, key)) {\n        var oldElement = oldObject[key];\n        var newElement = newObject[key];\n\n        if (isArray(oldElement) && isArray(newElement)) {\n          if (oldElement.length !== newElement.length) {\n            results.changed[key] = newObject[key];\n            didChange = true;\n          } else {\n            for (var i = 0, l = oldElement.length; i < l; i++) {\n              if (oldElement[i] !== newElement[i]) {\n                results.changed[key] = newObject[key];\n                didChange = true;\n              }\n            }\n          }\n        } else if (oldObject[key] !== newObject[key]) {\n          results.changed[key] = newObject[key];\n          didChange = true;\n        }\n      }\n    }\n\n    return didChange ? results : undefined;\n  }\n\n  function isArray(obj) {\n    return Array.isArray(obj);\n  }\n\n  function promiseLabel(label) {\n    return 'Router: ' + label;\n  }\n\n  var STATE_SYMBOL = `__STATE__-2619860001345920-3322w3`;\n  _exports.STATE_SYMBOL = STATE_SYMBOL;\n  var PARAMS_SYMBOL = `__PARAMS__-261986232992830203-23323`;\n  _exports.PARAMS_SYMBOL = PARAMS_SYMBOL;\n  var QUERY_PARAMS_SYMBOL = `__QPS__-2619863929824844-32323`;\n  /**\n    A Transition is a thennable (a promise-like object) that represents\n    an attempt to transition to another route. It can be aborted, either\n    explicitly via `abort` or by attempting another transition while a\n    previous one is still underway. An aborted transition can also\n    be `retry()`d later.\n  \n    @class Transition\n    @constructor\n    @param {Object} router\n    @param {Object} intent\n    @param {Object} state\n    @param {Object} error\n    @private\n   */\n\n  _exports.QUERY_PARAMS_SYMBOL = QUERY_PARAMS_SYMBOL;\n\n  class Transition {\n    constructor(router, intent, state, error = undefined, previousTransition = undefined) {\n      this.from = null;\n      this.to = undefined;\n      this.isAborted = false;\n      this.isActive = true;\n      this.urlMethod = 'update';\n      this.resolveIndex = 0;\n      this.queryParamsOnly = false;\n      this.isTransition = true;\n      this.isCausedByAbortingTransition = false;\n      this.isCausedByInitialTransition = false;\n      this.isCausedByAbortingReplaceTransition = false;\n      this._visibleQueryParams = {};\n      this[STATE_SYMBOL] = state || router.state;\n      this.intent = intent;\n      this.router = router;\n      this.data = intent && intent.data || {};\n      this.resolvedModels = {};\n      this[QUERY_PARAMS_SYMBOL] = {};\n      this.promise = undefined;\n      this.error = undefined;\n      this[PARAMS_SYMBOL] = {};\n      this.routeInfos = [];\n      this.targetName = undefined;\n      this.pivotHandler = undefined;\n      this.sequence = -1;\n\n      if (error) {\n        this.promise = _rsvp.Promise.reject(error);\n        this.error = error;\n        return;\n      } // if you're doing multiple redirects, need the new transition to know if it\n      // is actually part of the first transition or not. Any further redirects\n      // in the initial transition also need to know if they are part of the\n      // initial transition\n\n\n      this.isCausedByAbortingTransition = !!previousTransition;\n      this.isCausedByInitialTransition = !!previousTransition && (previousTransition.isCausedByInitialTransition || previousTransition.sequence === 0); // Every transition in the chain is a replace\n\n      this.isCausedByAbortingReplaceTransition = !!previousTransition && previousTransition.urlMethod === 'replace' && (!previousTransition.isCausedByAbortingTransition || previousTransition.isCausedByAbortingReplaceTransition);\n\n      if (state) {\n        this[PARAMS_SYMBOL] = state.params;\n        this[QUERY_PARAMS_SYMBOL] = state.queryParams;\n        this.routeInfos = state.routeInfos;\n        var len = state.routeInfos.length;\n\n        if (len) {\n          this.targetName = state.routeInfos[len - 1].name;\n        }\n\n        for (var i = 0; i < len; ++i) {\n          var handlerInfo = state.routeInfos[i]; // TODO: this all seems hacky\n\n          if (!handlerInfo.isResolved) {\n            break;\n          }\n\n          this.pivotHandler = handlerInfo.route;\n        }\n\n        this.sequence = router.currentSequence++;\n        this.promise = state.resolve(() => {\n          if (this.isAborted) {\n            return _rsvp.Promise.reject(false, promiseLabel('Transition aborted - reject'));\n          }\n\n          return _rsvp.Promise.resolve(true);\n        }, this).catch(result => {\n          return _rsvp.Promise.reject(this.router.transitionDidError(result, this));\n        }, promiseLabel('Handle Abort'));\n      } else {\n        this.promise = _rsvp.Promise.resolve(this[STATE_SYMBOL]);\n        this[PARAMS_SYMBOL] = {};\n      }\n    }\n    /**\n      The Transition's internal promise. Calling `.then` on this property\n      is that same as calling `.then` on the Transition object itself, but\n      this property is exposed for when you want to pass around a\n      Transition's promise, but not the Transition object itself, since\n      Transition object can be externally `abort`ed, while the promise\n      cannot.\n         @property promise\n      @type {Object}\n      @public\n     */\n\n    /**\n      Custom state can be stored on a Transition's `data` object.\n      This can be useful for decorating a Transition within an earlier\n      hook and shared with a later hook. Properties set on `data` will\n      be copied to new transitions generated by calling `retry` on this\n      transition.\n         @property data\n      @type {Object}\n      @public\n     */\n\n    /**\n      A standard promise hook that resolves if the transition\n      succeeds and rejects if it fails/redirects/aborts.\n         Forwards to the internal `promise` property which you can\n      use in situations where you want to pass around a thennable,\n      but not the Transition itself.\n         @method then\n      @param {Function} onFulfilled\n      @param {Function} onRejected\n      @param {String} label optional string for labeling the promise.\n      Useful for tooling.\n      @return {Promise}\n      @public\n     */\n\n\n    then(onFulfilled, onRejected, label) {\n      return this.promise.then(onFulfilled, onRejected, label);\n    }\n    /**\n         Forwards to the internal `promise` property which you can\n      use in situations where you want to pass around a thennable,\n      but not the Transition itself.\n         @method catch\n      @param {Function} onRejection\n      @param {String} label optional string for labeling the promise.\n      Useful for tooling.\n      @return {Promise}\n      @public\n     */\n\n\n    catch(onRejection, label) {\n      return this.promise.catch(onRejection, label);\n    }\n    /**\n         Forwards to the internal `promise` property which you can\n      use in situations where you want to pass around a thennable,\n      but not the Transition itself.\n         @method finally\n      @param {Function} callback\n      @param {String} label optional string for labeling the promise.\n      Useful for tooling.\n      @return {Promise}\n      @public\n     */\n\n\n    finally(callback, label) {\n      return this.promise.finally(callback, label);\n    }\n    /**\n      Aborts the Transition. Note you can also implicitly abort a transition\n      by initiating another transition while a previous one is underway.\n         @method abort\n      @return {Transition} this transition\n      @public\n     */\n\n\n    abort() {\n      this.rollback();\n      var transition = new Transition(this.router, undefined, undefined, undefined);\n      transition.to = this.from;\n      transition.from = this.from;\n      transition.isAborted = true;\n      this.router.routeWillChange(transition);\n      this.router.routeDidChange(transition);\n      return this;\n    }\n\n    rollback() {\n      if (!this.isAborted) {\n        log(this.router, this.sequence, this.targetName + ': transition was aborted');\n\n        if (this.intent !== undefined && this.intent !== null) {\n          this.intent.preTransitionState = this.router.state;\n        }\n\n        this.isAborted = true;\n        this.isActive = false;\n        this.router.activeTransition = undefined;\n      }\n    }\n\n    redirect(newTransition) {\n      this.rollback();\n      this.router.routeWillChange(newTransition);\n    }\n    /**\n         Retries a previously-aborted transition (making sure to abort the\n      transition if it's still active). Returns a new transition that\n      represents the new attempt to transition.\n         @method retry\n      @return {Transition} new transition\n      @public\n     */\n\n\n    retry() {\n      // TODO: add tests for merged state retry()s\n      this.abort();\n      var newTransition = this.router.transitionByIntent(this.intent, false); // inheriting a `null` urlMethod is not valid\n      // the urlMethod is only set to `null` when\n      // the transition is initiated *after* the url\n      // has been updated (i.e. `router.handleURL`)\n      //\n      // in that scenario, the url method cannot be\n      // inherited for a new transition because then\n      // the url would not update even though it should\n\n      if (this.urlMethod !== null) {\n        newTransition.method(this.urlMethod);\n      }\n\n      return newTransition;\n    }\n    /**\n         Sets the URL-changing method to be employed at the end of a\n      successful transition. By default, a new Transition will just\n      use `updateURL`, but passing 'replace' to this method will\n      cause the URL to update using 'replaceWith' instead. Omitting\n      a parameter will disable the URL change, allowing for transitions\n      that don't update the URL at completion (this is also used for\n      handleURL, since the URL has already changed before the\n      transition took place).\n         @method method\n      @param {String} method the type of URL-changing method to use\n        at the end of a transition. Accepted values are 'replace',\n        falsy values, or any other non-falsy value (which is\n        interpreted as an updateURL transition).\n         @return {Transition} this transition\n      @public\n     */\n\n\n    method(method) {\n      this.urlMethod = method;\n      return this;\n    } // Alias 'trigger' as 'send'\n\n\n    send(ignoreFailure = false, _name, err, transition, handler) {\n      this.trigger(ignoreFailure, _name, err, transition, handler);\n    }\n    /**\n         Fires an event on the current list of resolved/resolving\n      handlers within this transition. Useful for firing events\n      on route hierarchies that haven't fully been entered yet.\n         Note: This method is also aliased as `send`\n         @method trigger\n      @param {Boolean} [ignoreFailure=false] a boolean specifying whether unhandled events throw an error\n      @param {String} name the name of the event to fire\n      @public\n     */\n\n\n    trigger(ignoreFailure = false, name, ...args) {\n      // TODO: Deprecate the current signature\n      if (typeof ignoreFailure === 'string') {\n        name = ignoreFailure;\n        ignoreFailure = false;\n      }\n\n      this.router.triggerEvent(this[STATE_SYMBOL].routeInfos.slice(0, this.resolveIndex + 1), ignoreFailure, name, args);\n    }\n    /**\n      Transitions are aborted and their promises rejected\n      when redirects occur; this method returns a promise\n      that will follow any redirects that occur and fulfill\n      with the value fulfilled by any redirecting transitions\n      that occur.\n         @method followRedirects\n      @return {Promise} a promise that fulfills with the same\n        value that the final redirecting transition fulfills with\n      @public\n     */\n\n\n    followRedirects() {\n      var router = this.router;\n      return this.promise.catch(function (reason) {\n        if (router.activeTransition) {\n          return router.activeTransition.followRedirects();\n        }\n\n        return _rsvp.Promise.reject(reason);\n      });\n    }\n\n    toString() {\n      return 'Transition (sequence ' + this.sequence + ')';\n    }\n    /**\n      @private\n     */\n\n\n    log(message) {\n      log(this.router, this.sequence, message);\n    }\n\n  }\n  /**\n    @private\n  \n    Logs and returns an instance of TransitionAborted.\n   */\n\n\n  _exports.InternalTransition = Transition;\n\n  function logAbort(transition) {\n    log(transition.router, transition.sequence, 'detected abort.');\n    return new TransitionAbortedError();\n  }\n\n  function isTransition(obj) {\n    return typeof obj === 'object' && obj instanceof Transition && obj.isTransition;\n  }\n\n  function prepareResult(obj) {\n    if (isTransition(obj)) {\n      return null;\n    }\n\n    return obj;\n  }\n\n  var ROUTE_INFOS = new WeakMap();\n\n  function toReadOnlyRouteInfo(routeInfos, queryParams = {}, includeAttributes = false) {\n    return routeInfos.map((info, i) => {\n      var {\n        name,\n        params,\n        paramNames,\n        context,\n        route\n      } = info;\n\n      if (ROUTE_INFOS.has(info) && includeAttributes) {\n        var _routeInfo = ROUTE_INFOS.get(info);\n\n        _routeInfo = attachMetadata(route, _routeInfo);\n        var routeInfoWithAttribute = createRouteInfoWithAttributes(_routeInfo, context);\n        ROUTE_INFOS.set(info, routeInfoWithAttribute);\n        return routeInfoWithAttribute;\n      }\n\n      var routeInfo = {\n        find(predicate, thisArg) {\n          var publicInfo;\n          var arr = [];\n\n          if (predicate.length === 3) {\n            arr = routeInfos.map(info => ROUTE_INFOS.get(info));\n          }\n\n          for (var _i = 0; routeInfos.length > _i; _i++) {\n            publicInfo = ROUTE_INFOS.get(routeInfos[_i]);\n\n            if (predicate.call(thisArg, publicInfo, _i, arr)) {\n              return publicInfo;\n            }\n          }\n\n          return undefined;\n        },\n\n        get name() {\n          return name;\n        },\n\n        get paramNames() {\n          return paramNames;\n        },\n\n        get metadata() {\n          return buildRouteInfoMetadata(info.route);\n        },\n\n        get parent() {\n          var parent = routeInfos[i - 1];\n\n          if (parent === undefined) {\n            return null;\n          }\n\n          return ROUTE_INFOS.get(parent);\n        },\n\n        get child() {\n          var child = routeInfos[i + 1];\n\n          if (child === undefined) {\n            return null;\n          }\n\n          return ROUTE_INFOS.get(child);\n        },\n\n        get localName() {\n          var parts = this.name.split('.');\n          return parts[parts.length - 1];\n        },\n\n        get params() {\n          return params;\n        },\n\n        get queryParams() {\n          return queryParams;\n        }\n\n      };\n\n      if (includeAttributes) {\n        routeInfo = createRouteInfoWithAttributes(routeInfo, context);\n      }\n\n      ROUTE_INFOS.set(info, routeInfo);\n      return routeInfo;\n    });\n  }\n\n  function createRouteInfoWithAttributes(routeInfo, context) {\n    var attributes = {\n      get attributes() {\n        return context;\n      }\n\n    };\n\n    if (Object.isFrozen(routeInfo) || routeInfo.hasOwnProperty('attributes')) {\n      return Object.freeze((0, _polyfills.assign)({}, routeInfo, attributes));\n    }\n\n    return (0, _polyfills.assign)(routeInfo, attributes);\n  }\n\n  function buildRouteInfoMetadata(route) {\n    if (route !== undefined && route !== null && route.buildRouteInfoMetadata !== undefined) {\n      return route.buildRouteInfoMetadata();\n    }\n\n    return null;\n  }\n\n  function attachMetadata(route, routeInfo) {\n    var metadata = {\n      get metadata() {\n        return buildRouteInfoMetadata(route);\n      }\n\n    };\n\n    if (Object.isFrozen(routeInfo) || routeInfo.hasOwnProperty('metadata')) {\n      return Object.freeze((0, _polyfills.assign)({}, routeInfo, metadata));\n    }\n\n    return (0, _polyfills.assign)(routeInfo, metadata);\n  }\n\n  class InternalRouteInfo {\n    constructor(router, name, paramNames, route) {\n      this._routePromise = undefined;\n      this._route = null;\n      this.params = {};\n      this.isResolved = false;\n      this.name = name;\n      this.paramNames = paramNames;\n      this.router = router;\n\n      if (route) {\n        this._processRoute(route);\n      }\n    }\n\n    getModel(_transition) {\n      return _rsvp.Promise.resolve(this.context);\n    }\n\n    serialize(_context) {\n      return this.params || {};\n    }\n\n    resolve(shouldContinue, transition) {\n      return _rsvp.Promise.resolve(this.routePromise).then(route => this.checkForAbort(shouldContinue, route)).then(() => this.runBeforeModelHook(transition)).then(() => this.checkForAbort(shouldContinue, null)).then(() => this.getModel(transition)).then(resolvedModel => this.checkForAbort(shouldContinue, resolvedModel)).then(resolvedModel => this.runAfterModelHook(transition, resolvedModel)).then(resolvedModel => this.becomeResolved(transition, resolvedModel));\n    }\n\n    becomeResolved(transition, resolvedContext) {\n      var params = this.serialize(resolvedContext);\n\n      if (transition) {\n        this.stashResolvedModel(transition, resolvedContext);\n        transition[PARAMS_SYMBOL] = transition[PARAMS_SYMBOL] || {};\n        transition[PARAMS_SYMBOL][this.name] = params;\n      }\n\n      var context;\n      var contextsMatch = resolvedContext === this.context;\n\n      if ('context' in this || !contextsMatch) {\n        context = resolvedContext;\n      }\n\n      var cached = ROUTE_INFOS.get(this);\n      var resolved = new ResolvedRouteInfo(this.router, this.name, this.paramNames, params, this.route, context);\n\n      if (cached !== undefined) {\n        ROUTE_INFOS.set(resolved, cached);\n      }\n\n      return resolved;\n    }\n\n    shouldSupercede(routeInfo) {\n      // Prefer this newer routeInfo over `other` if:\n      // 1) The other one doesn't exist\n      // 2) The names don't match\n      // 3) This route has a context that doesn't match\n      //    the other one (or the other one doesn't have one).\n      // 4) This route has parameters that don't match the other.\n      if (!routeInfo) {\n        return true;\n      }\n\n      var contextsMatch = routeInfo.context === this.context;\n      return routeInfo.name !== this.name || 'context' in this && !contextsMatch || this.hasOwnProperty('params') && !paramsMatch(this.params, routeInfo.params);\n    }\n\n    get route() {\n      // _route could be set to either a route object or undefined, so we\n      // compare against null to know when it's been set\n      if (this._route !== null) {\n        return this._route;\n      }\n\n      return this.fetchRoute();\n    }\n\n    set route(route) {\n      this._route = route;\n    }\n\n    get routePromise() {\n      if (this._routePromise) {\n        return this._routePromise;\n      }\n\n      this.fetchRoute();\n      return this._routePromise;\n    }\n\n    set routePromise(routePromise) {\n      this._routePromise = routePromise;\n    }\n\n    log(transition, message) {\n      if (transition.log) {\n        transition.log(this.name + ': ' + message);\n      }\n    }\n\n    updateRoute(route) {\n      route._internalName = this.name;\n      return this.route = route;\n    }\n\n    runBeforeModelHook(transition) {\n      if (transition.trigger) {\n        transition.trigger(true, 'willResolveModel', transition, this.route);\n      }\n\n      var result;\n\n      if (this.route) {\n        if (this.route.beforeModel !== undefined) {\n          result = this.route.beforeModel(transition);\n        }\n      }\n\n      if (isTransition(result)) {\n        result = null;\n      }\n\n      return _rsvp.Promise.resolve(result);\n    }\n\n    runAfterModelHook(transition, resolvedModel) {\n      // Stash the resolved model on the payload.\n      // This makes it possible for users to swap out\n      // the resolved model in afterModel.\n      var name = this.name;\n      this.stashResolvedModel(transition, resolvedModel);\n      var result;\n\n      if (this.route !== undefined) {\n        if (this.route.afterModel !== undefined) {\n          result = this.route.afterModel(resolvedModel, transition);\n        }\n      }\n\n      result = prepareResult(result);\n      return _rsvp.Promise.resolve(result).then(() => {\n        // Ignore the fulfilled value returned from afterModel.\n        // Return the value stashed in resolvedModels, which\n        // might have been swapped out in afterModel.\n        return transition.resolvedModels[name];\n      });\n    }\n\n    checkForAbort(shouldContinue, value) {\n      return _rsvp.Promise.resolve(shouldContinue()).then(function () {\n        // We don't care about shouldContinue's resolve value;\n        // pass along the original value passed to this fn.\n        return value;\n      }, null);\n    }\n\n    stashResolvedModel(transition, resolvedModel) {\n      transition.resolvedModels = transition.resolvedModels || {};\n      transition.resolvedModels[this.name] = resolvedModel;\n    }\n\n    fetchRoute() {\n      var route = this.router.getRoute(this.name);\n      return this._processRoute(route);\n    }\n\n    _processRoute(route) {\n      // Setup a routePromise so that we can wait for asynchronously loaded routes\n      this.routePromise = _rsvp.Promise.resolve(route); // Wait until the 'route' property has been updated when chaining to a route\n      // that is a promise\n\n      if (isPromise(route)) {\n        this.routePromise = this.routePromise.then(r => {\n          return this.updateRoute(r);\n        }); // set to undefined to avoid recursive loop in the route getter\n\n        return this.route = undefined;\n      } else if (route) {\n        return this.updateRoute(route);\n      }\n\n      return undefined;\n    }\n\n  }\n\n  _exports.InternalRouteInfo = InternalRouteInfo;\n\n  class ResolvedRouteInfo extends InternalRouteInfo {\n    constructor(router, name, paramNames, params, route, context) {\n      super(router, name, paramNames, route);\n      this.params = params;\n      this.isResolved = true;\n      this.context = context;\n    }\n\n    resolve(_shouldContinue, transition) {\n      // A ResolvedRouteInfo just resolved with itself.\n      if (transition && transition.resolvedModels) {\n        transition.resolvedModels[this.name] = this.context;\n      }\n\n      return _rsvp.Promise.resolve(this);\n    }\n\n  }\n\n  class UnresolvedRouteInfoByParam extends InternalRouteInfo {\n    constructor(router, name, paramNames, params, route) {\n      super(router, name, paramNames, route);\n      this.params = {};\n      this.params = params;\n    }\n\n    getModel(transition) {\n      var fullParams = this.params;\n\n      if (transition && transition[QUERY_PARAMS_SYMBOL]) {\n        fullParams = {};\n        merge(fullParams, this.params);\n        fullParams.queryParams = transition[QUERY_PARAMS_SYMBOL];\n      }\n\n      var route = this.route;\n      var result = undefined;\n\n      if (route.deserialize) {\n        result = route.deserialize(fullParams, transition);\n      } else if (route.model) {\n        result = route.model(fullParams, transition);\n      }\n\n      if (result && isTransition(result)) {\n        result = undefined;\n      }\n\n      return _rsvp.Promise.resolve(result);\n    }\n\n  }\n\n  class UnresolvedRouteInfoByObject extends InternalRouteInfo {\n    constructor(router, name, paramNames, context) {\n      super(router, name, paramNames);\n      this.context = context;\n      this.serializer = this.router.getSerializer(name);\n    }\n\n    getModel(transition) {\n      if (this.router.log !== undefined) {\n        this.router.log(this.name + ': resolving provided model');\n      }\n\n      return super.getModel(transition);\n    }\n    /**\n      @private\n         Serializes a route using its custom `serialize` method or\n      by a default that looks up the expected property name from\n      the dynamic segment.\n         @param {Object} model the model to be serialized for this route\n    */\n\n\n    serialize(model) {\n      var {\n        paramNames,\n        context\n      } = this;\n\n      if (!model) {\n        model = context;\n      }\n\n      var object = {};\n\n      if (isParam(model)) {\n        object[paramNames[0]] = model;\n        return object;\n      } // Use custom serialize if it exists.\n\n\n      if (this.serializer) {\n        // invoke this.serializer unbound (getSerializer returns a stateless function)\n        return this.serializer.call(null, model, paramNames);\n      } else if (this.route !== undefined) {\n        if (this.route.serialize) {\n          return this.route.serialize(model, paramNames);\n        }\n      }\n\n      if (paramNames.length !== 1) {\n        return;\n      }\n\n      var name = paramNames[0];\n\n      if (/_id$/.test(name)) {\n        object[name] = model.id;\n      } else {\n        object[name] = model;\n      }\n\n      return object;\n    }\n\n  }\n\n  function paramsMatch(a, b) {\n    if (!a !== !b) {\n      // Only one is null.\n      return false;\n    }\n\n    if (!a) {\n      // Both must be null.\n      return true;\n    } // Note: this assumes that both params have the same\n    // number of keys, but since we're comparing the\n    // same routes, they should.\n\n\n    for (var k in a) {\n      if (a.hasOwnProperty(k) && a[k] !== b[k]) {\n        return false;\n      }\n    }\n\n    return true;\n  }\n\n  class TransitionIntent {\n    constructor(router, data = {}) {\n      this.router = router;\n      this.data = data;\n    }\n\n  }\n\n  class TransitionState {\n    constructor() {\n      this.routeInfos = [];\n      this.queryParams = {};\n      this.params = {};\n    }\n\n    promiseLabel(label) {\n      var targetName = '';\n      forEach(this.routeInfos, function (routeInfo) {\n        if (targetName !== '') {\n          targetName += '.';\n        }\n\n        targetName += routeInfo.name;\n        return true;\n      });\n      return promiseLabel(\"'\" + targetName + \"': \" + label);\n    }\n\n    resolve(shouldContinue, transition) {\n      // First, calculate params for this state. This is useful\n      // information to provide to the various route hooks.\n      var params = this.params;\n      forEach(this.routeInfos, routeInfo => {\n        params[routeInfo.name] = routeInfo.params || {};\n        return true;\n      });\n      transition.resolveIndex = 0;\n      var currentState = this;\n      var wasAborted = false; // The prelude RSVP.resolve() asyncs us into the promise land.\n\n      return _rsvp.Promise.resolve(null, this.promiseLabel('Start transition')).then(resolveOneRouteInfo, null, this.promiseLabel('Resolve route')).catch(handleError, this.promiseLabel('Handle error'));\n\n      function innerShouldContinue() {\n        return _rsvp.Promise.resolve(shouldContinue(), currentState.promiseLabel('Check if should continue')).catch(function (reason) {\n          // We distinguish between errors that occurred\n          // during resolution (e.g. before\"Model/model/afterModel),\n          // and aborts due to a rejecting promise from shouldContinue().\n          wasAborted = true;\n          return _rsvp.Promise.reject(reason);\n        }, currentState.promiseLabel('Handle abort'));\n      }\n\n      function handleError(error) {\n        // This is the only possible\n        // reject value of TransitionState#resolve\n        var routeInfos = currentState.routeInfos;\n        var errorHandlerIndex = transition.resolveIndex >= routeInfos.length ? routeInfos.length - 1 : transition.resolveIndex;\n        return _rsvp.Promise.reject(new TransitionError(error, currentState.routeInfos[errorHandlerIndex].route, wasAborted, currentState));\n      }\n\n      function proceed(resolvedRouteInfo) {\n        var wasAlreadyResolved = currentState.routeInfos[transition.resolveIndex].isResolved; // Swap the previously unresolved routeInfo with\n        // the resolved routeInfo\n\n        currentState.routeInfos[transition.resolveIndex++] = resolvedRouteInfo;\n\n        if (!wasAlreadyResolved) {\n          // Call the redirect hook. The reason we call it here\n          // vs. afterModel is so that redirects into child\n          // routes don't re-run the model hooks for this\n          // already-resolved route.\n          var {\n            route\n          } = resolvedRouteInfo;\n\n          if (route !== undefined) {\n            if (route.redirect) {\n              route.redirect(resolvedRouteInfo.context, transition);\n            }\n          }\n        } // Proceed after ensuring that the redirect hook\n        // didn't abort this transition by transitioning elsewhere.\n\n\n        return innerShouldContinue().then(resolveOneRouteInfo, null, currentState.promiseLabel('Resolve route'));\n      }\n\n      function resolveOneRouteInfo() {\n        if (transition.resolveIndex === currentState.routeInfos.length) {\n          // This is is the only possible\n          // fulfill value of TransitionState#resolve\n          return currentState;\n        }\n\n        var routeInfo = currentState.routeInfos[transition.resolveIndex];\n        return routeInfo.resolve(innerShouldContinue, transition).then(proceed, null, currentState.promiseLabel('Proceed'));\n      }\n    }\n\n  }\n\n  _exports.TransitionState = TransitionState;\n\n  class TransitionError {\n    constructor(error, route, wasAborted, state) {\n      this.error = error;\n      this.route = route;\n      this.wasAborted = wasAborted;\n      this.state = state;\n    }\n\n  }\n\n  _exports.TransitionError = TransitionError;\n\n  class NamedTransitionIntent extends TransitionIntent {\n    constructor(router, name, pivotHandler, contexts = [], queryParams = {}, data) {\n      super(router, data);\n      this.preTransitionState = undefined;\n      this.name = name;\n      this.pivotHandler = pivotHandler;\n      this.contexts = contexts;\n      this.queryParams = queryParams;\n    }\n\n    applyToState(oldState, isIntermediate) {\n      // TODO: WTF fix me\n      var partitionedArgs = extractQueryParams([this.name].concat(this.contexts)),\n          pureArgs = partitionedArgs[0],\n          handlers = this.router.recognizer.handlersFor(pureArgs[0]);\n      var targetRouteName = handlers[handlers.length - 1].handler;\n      return this.applyToHandlers(oldState, handlers, targetRouteName, isIntermediate, false);\n    }\n\n    applyToHandlers(oldState, parsedHandlers, targetRouteName, isIntermediate, checkingIfActive) {\n      var i, len;\n      var newState = new TransitionState();\n      var objects = this.contexts.slice(0);\n      var invalidateIndex = parsedHandlers.length; // Pivot handlers are provided for refresh transitions\n\n      if (this.pivotHandler) {\n        for (i = 0, len = parsedHandlers.length; i < len; ++i) {\n          if (parsedHandlers[i].handler === this.pivotHandler._internalName) {\n            invalidateIndex = i;\n            break;\n          }\n        }\n      }\n\n      for (i = parsedHandlers.length - 1; i >= 0; --i) {\n        var result = parsedHandlers[i];\n        var name = result.handler;\n        var oldHandlerInfo = oldState.routeInfos[i];\n        var newHandlerInfo = null;\n\n        if (result.names.length > 0) {\n          if (i >= invalidateIndex) {\n            newHandlerInfo = this.createParamHandlerInfo(name, result.names, objects, oldHandlerInfo);\n          } else {\n            newHandlerInfo = this.getHandlerInfoForDynamicSegment(name, result.names, objects, oldHandlerInfo, targetRouteName, i);\n          }\n        } else {\n          // This route has no dynamic segment.\n          // Therefore treat as a param-based handlerInfo\n          // with empty params. This will cause the `model`\n          // hook to be called with empty params, which is desirable.\n          newHandlerInfo = this.createParamHandlerInfo(name, result.names, objects, oldHandlerInfo);\n        }\n\n        if (checkingIfActive) {\n          // If we're performing an isActive check, we want to\n          // serialize URL params with the provided context, but\n          // ignore mismatches between old and new context.\n          newHandlerInfo = newHandlerInfo.becomeResolved(null, newHandlerInfo.context);\n          var oldContext = oldHandlerInfo && oldHandlerInfo.context;\n\n          if (result.names.length > 0 && oldHandlerInfo.context !== undefined && newHandlerInfo.context === oldContext) {\n            // If contexts match in isActive test, assume params also match.\n            // This allows for flexibility in not requiring that every last\n            // handler provide a `serialize` method\n            newHandlerInfo.params = oldHandlerInfo && oldHandlerInfo.params;\n          }\n\n          newHandlerInfo.context = oldContext;\n        }\n\n        var handlerToUse = oldHandlerInfo;\n\n        if (i >= invalidateIndex || newHandlerInfo.shouldSupercede(oldHandlerInfo)) {\n          invalidateIndex = Math.min(i, invalidateIndex);\n          handlerToUse = newHandlerInfo;\n        }\n\n        if (isIntermediate && !checkingIfActive) {\n          handlerToUse = handlerToUse.becomeResolved(null, handlerToUse.context);\n        }\n\n        newState.routeInfos.unshift(handlerToUse);\n      }\n\n      if (objects.length > 0) {\n        throw new Error('More context objects were passed than there are dynamic segments for the route: ' + targetRouteName);\n      }\n\n      if (!isIntermediate) {\n        this.invalidateChildren(newState.routeInfos, invalidateIndex);\n      }\n\n      merge(newState.queryParams, this.queryParams || {});\n      return newState;\n    }\n\n    invalidateChildren(handlerInfos, invalidateIndex) {\n      for (var i = invalidateIndex, l = handlerInfos.length; i < l; ++i) {\n        var handlerInfo = handlerInfos[i];\n\n        if (handlerInfo.isResolved) {\n          var {\n            name,\n            params,\n            route,\n            paramNames\n          } = handlerInfos[i];\n          handlerInfos[i] = new UnresolvedRouteInfoByParam(this.router, name, paramNames, params, route);\n        }\n      }\n    }\n\n    getHandlerInfoForDynamicSegment(name, names, objects, oldHandlerInfo, _targetRouteName, i) {\n      var objectToUse;\n\n      if (objects.length > 0) {\n        // Use the objects provided for this transition.\n        objectToUse = objects[objects.length - 1];\n\n        if (isParam(objectToUse)) {\n          return this.createParamHandlerInfo(name, names, objects, oldHandlerInfo);\n        } else {\n          objects.pop();\n        }\n      } else if (oldHandlerInfo && oldHandlerInfo.name === name) {\n        // Reuse the matching oldHandlerInfo\n        return oldHandlerInfo;\n      } else {\n        if (this.preTransitionState) {\n          var preTransitionHandlerInfo = this.preTransitionState.routeInfos[i];\n          objectToUse = preTransitionHandlerInfo && preTransitionHandlerInfo.context;\n        } else {\n          // Ideally we should throw this error to provide maximal\n          // information to the user that not enough context objects\n          // were provided, but this proves too cumbersome in Ember\n          // in cases where inner template helpers are evaluated\n          // before parent helpers un-render, in which cases this\n          // error somewhat prematurely fires.\n          //throw new Error(\"Not enough context objects were provided to complete a transition to \" + targetRouteName + \". Specifically, the \" + name + \" route needs an object that can be serialized into its dynamic URL segments [\" + names.join(', ') + \"]\");\n          return oldHandlerInfo;\n        }\n      }\n\n      return new UnresolvedRouteInfoByObject(this.router, name, names, objectToUse);\n    }\n\n    createParamHandlerInfo(name, names, objects, oldHandlerInfo) {\n      var params = {}; // Soak up all the provided string/numbers\n\n      var numNames = names.length;\n      var missingParams = [];\n\n      while (numNames--) {\n        // Only use old params if the names match with the new handler\n        var oldParams = oldHandlerInfo && name === oldHandlerInfo.name && oldHandlerInfo.params || {};\n        var peek = objects[objects.length - 1];\n        var paramName = names[numNames];\n\n        if (isParam(peek)) {\n          params[paramName] = '' + objects.pop();\n        } else {\n          // If we're here, this means only some of the params\n          // were string/number params, so try and use a param\n          // value from a previous handler.\n          if (oldParams.hasOwnProperty(paramName)) {\n            params[paramName] = oldParams[paramName];\n          } else {\n            missingParams.push(paramName);\n          }\n        }\n      }\n\n      if (missingParams.length > 0) {\n        throw new Error(`You didn't provide enough string/numeric parameters to satisfy all of the dynamic segments for route ${name}.` + ` Missing params: ${missingParams}`);\n      }\n\n      return new UnresolvedRouteInfoByParam(this.router, name, names, params);\n    }\n\n  }\n\n  var UnrecognizedURLError = function () {\n    UnrecognizedURLError.prototype = Object.create(Error.prototype);\n    UnrecognizedURLError.prototype.constructor = UnrecognizedURLError;\n\n    function UnrecognizedURLError(message) {\n      var error = Error.call(this, message);\n      this.name = 'UnrecognizedURLError';\n      this.message = message || 'UnrecognizedURL';\n\n      if (Error.captureStackTrace) {\n        Error.captureStackTrace(this, UnrecognizedURLError);\n      } else {\n        this.stack = error.stack;\n      }\n    }\n\n    return UnrecognizedURLError;\n  }();\n\n  class URLTransitionIntent extends TransitionIntent {\n    constructor(router, url, data) {\n      super(router, data);\n      this.url = url;\n      this.preTransitionState = undefined;\n    }\n\n    applyToState(oldState) {\n      var newState = new TransitionState();\n      var results = this.router.recognizer.recognize(this.url),\n          i,\n          len;\n\n      if (!results) {\n        throw new UnrecognizedURLError(this.url);\n      }\n\n      var statesDiffer = false;\n      var _url = this.url; // Checks if a handler is accessible by URL. If it is not, an error is thrown.\n      // For the case where the handler is loaded asynchronously, the error will be\n      // thrown once it is loaded.\n\n      function checkHandlerAccessibility(handler) {\n        if (handler && handler.inaccessibleByURL) {\n          throw new UnrecognizedURLError(_url);\n        }\n\n        return handler;\n      }\n\n      for (i = 0, len = results.length; i < len; ++i) {\n        var result = results[i];\n        var name = result.handler;\n        var paramNames = [];\n\n        if (this.router.recognizer.hasRoute(name)) {\n          paramNames = this.router.recognizer.handlersFor(name)[i].names;\n        }\n\n        var newRouteInfo = new UnresolvedRouteInfoByParam(this.router, name, paramNames, result.params);\n        var route = newRouteInfo.route;\n\n        if (route) {\n          checkHandlerAccessibility(route);\n        } else {\n          // If the hanlder is being loaded asynchronously, check if we can\n          // access it after it has resolved\n          newRouteInfo.routePromise = newRouteInfo.routePromise.then(checkHandlerAccessibility);\n        }\n\n        var oldRouteInfo = oldState.routeInfos[i];\n\n        if (statesDiffer || newRouteInfo.shouldSupercede(oldRouteInfo)) {\n          statesDiffer = true;\n          newState.routeInfos[i] = newRouteInfo;\n        } else {\n          newState.routeInfos[i] = oldRouteInfo;\n        }\n      }\n\n      merge(newState.queryParams, results.queryParams);\n      return newState;\n    }\n\n  }\n\n  class Router {\n    constructor(logger) {\n      this._lastQueryParams = {};\n      this.state = undefined;\n      this.oldState = undefined;\n      this.activeTransition = undefined;\n      this.currentRouteInfos = undefined;\n      this._changedQueryParams = undefined;\n      this.currentSequence = 0;\n      this.log = logger;\n      this.recognizer = new _routeRecognizer.default();\n      this.reset();\n    }\n    /**\n      The main entry point into the router. The API is essentially\n      the same as the `map` method in `route-recognizer`.\n         This method extracts the String handler at the last `.to()`\n      call and uses it as the name of the whole route.\n         @param {Function} callback\n    */\n\n\n    map(callback) {\n      this.recognizer.map(callback, function (recognizer, routes) {\n        for (var i = routes.length - 1, proceed = true; i >= 0 && proceed; --i) {\n          var route = routes[i];\n          var handler = route.handler;\n          recognizer.add(routes, {\n            as: handler\n          });\n          proceed = route.path === '/' || route.path === '' || handler.slice(-6) === '.index';\n        }\n      });\n    }\n\n    hasRoute(route) {\n      return this.recognizer.hasRoute(route);\n    }\n\n    queryParamsTransition(changelist, wasTransitioning, oldState, newState) {\n      this.fireQueryParamDidChange(newState, changelist);\n\n      if (!wasTransitioning && this.activeTransition) {\n        // One of the routes in queryParamsDidChange\n        // caused a transition. Just return that transition.\n        return this.activeTransition;\n      } else {\n        // Running queryParamsDidChange didn't change anything.\n        // Just update query params and be on our way.\n        // We have to return a noop transition that will\n        // perform a URL update at the end. This gives\n        // the user the ability to set the url update\n        // method (default is replaceState).\n        var newTransition = new Transition(this, undefined, undefined);\n        newTransition.queryParamsOnly = true;\n        oldState.queryParams = this.finalizeQueryParamChange(newState.routeInfos, newState.queryParams, newTransition);\n        newTransition[QUERY_PARAMS_SYMBOL] = newState.queryParams;\n        this.toReadOnlyInfos(newTransition, newState);\n        this.routeWillChange(newTransition);\n        newTransition.promise = newTransition.promise.then(result => {\n          this._updateURL(newTransition, oldState);\n\n          this.didTransition(this.currentRouteInfos);\n          this.toInfos(newTransition, newState.routeInfos, true);\n          this.routeDidChange(newTransition);\n          return result;\n        }, null, promiseLabel('Transition complete'));\n        return newTransition;\n      }\n    }\n\n    transitionByIntent(intent, isIntermediate) {\n      try {\n        return this.getTransitionByIntent(intent, isIntermediate);\n      } catch (e) {\n        return new Transition(this, intent, undefined, e, undefined);\n      }\n    }\n\n    recognize(url) {\n      var intent = new URLTransitionIntent(this, url);\n      var newState = this.generateNewState(intent);\n\n      if (newState === null) {\n        return newState;\n      }\n\n      var readonlyInfos = toReadOnlyRouteInfo(newState.routeInfos, newState.queryParams);\n      return readonlyInfos[readonlyInfos.length - 1];\n    }\n\n    recognizeAndLoad(url) {\n      var intent = new URLTransitionIntent(this, url);\n      var newState = this.generateNewState(intent);\n\n      if (newState === null) {\n        return _rsvp.Promise.reject(`URL ${url} was not recognized`);\n      }\n\n      var newTransition = new Transition(this, intent, newState, undefined);\n      return newTransition.then(() => {\n        var routeInfosWithAttributes = toReadOnlyRouteInfo(newState.routeInfos, newTransition[QUERY_PARAMS_SYMBOL], true);\n        return routeInfosWithAttributes[routeInfosWithAttributes.length - 1];\n      });\n    }\n\n    generateNewState(intent) {\n      try {\n        return intent.applyToState(this.state, false);\n      } catch (e) {\n        return null;\n      }\n    }\n\n    getTransitionByIntent(intent, isIntermediate) {\n      var wasTransitioning = !!this.activeTransition;\n      var oldState = wasTransitioning ? this.activeTransition[STATE_SYMBOL] : this.state;\n      var newTransition;\n      var newState = intent.applyToState(oldState, isIntermediate);\n      var queryParamChangelist = getChangelist(oldState.queryParams, newState.queryParams);\n\n      if (routeInfosEqual(newState.routeInfos, oldState.routeInfos)) {\n        // This is a no-op transition. See if query params changed.\n        if (queryParamChangelist) {\n          var _newTransition = this.queryParamsTransition(queryParamChangelist, wasTransitioning, oldState, newState);\n\n          _newTransition.queryParamsOnly = true;\n          return _newTransition;\n        } // No-op. No need to create a new transition.\n\n\n        return this.activeTransition || new Transition(this, undefined, undefined);\n      }\n\n      if (isIntermediate) {\n        var transition = new Transition(this, undefined, undefined);\n        this.toReadOnlyInfos(transition, newState);\n        this.setupContexts(newState);\n        this.routeWillChange(transition);\n        return this.activeTransition;\n      } // Create a new transition to the destination route.\n\n\n      newTransition = new Transition(this, intent, newState, undefined, this.activeTransition); // transition is to same route with same params, only query params differ.\n      // not caught above probably because refresh() has been used\n\n      if (routeInfosSameExceptQueryParams(newState.routeInfos, oldState.routeInfos)) {\n        newTransition.queryParamsOnly = true;\n      }\n\n      this.toReadOnlyInfos(newTransition, newState); // Abort and usurp any previously active transition.\n\n      if (this.activeTransition) {\n        this.activeTransition.redirect(newTransition);\n      }\n\n      this.activeTransition = newTransition; // Transition promises by default resolve with resolved state.\n      // For our purposes, swap out the promise to resolve\n      // after the transition has been finalized.\n\n      newTransition.promise = newTransition.promise.then(result => {\n        return this.finalizeTransition(newTransition, result);\n      }, null, promiseLabel('Settle transition promise when transition is finalized'));\n\n      if (!wasTransitioning) {\n        this.notifyExistingHandlers(newState, newTransition);\n      }\n\n      this.fireQueryParamDidChange(newState, queryParamChangelist);\n      return newTransition;\n    }\n    /**\n    @private\n       Begins and returns a Transition based on the provided\n    arguments. Accepts arguments in the form of both URL\n    transitions and named transitions.\n       @param {Router} router\n    @param {Array[Object]} args arguments passed to transitionTo,\n      replaceWith, or handleURL\n    */\n\n\n    doTransition(name, modelsArray = [], isIntermediate = false) {\n      var lastArg = modelsArray[modelsArray.length - 1];\n      var queryParams = {};\n\n      if (lastArg !== undefined && lastArg.hasOwnProperty('queryParams')) {\n        queryParams = modelsArray.pop().queryParams;\n      }\n\n      var intent;\n\n      if (name === undefined) {\n        log(this, 'Updating query params'); // A query param update is really just a transition\n        // into the route you're already on.\n\n        var {\n          routeInfos\n        } = this.state;\n        intent = new NamedTransitionIntent(this, routeInfos[routeInfos.length - 1].name, undefined, [], queryParams);\n      } else if (name.charAt(0) === '/') {\n        log(this, 'Attempting URL transition to ' + name);\n        intent = new URLTransitionIntent(this, name);\n      } else {\n        log(this, 'Attempting transition to ' + name);\n        intent = new NamedTransitionIntent(this, name, undefined, modelsArray, queryParams);\n      }\n\n      return this.transitionByIntent(intent, isIntermediate);\n    }\n    /**\n    @private\n       Updates the URL (if necessary) and calls `setupContexts`\n    to update the router's array of `currentRouteInfos`.\n    */\n\n\n    finalizeTransition(transition, newState) {\n      try {\n        log(transition.router, transition.sequence, 'Resolved all models on destination route; finalizing transition.');\n        var routeInfos = newState.routeInfos; // Run all the necessary enter/setup/exit hooks\n\n        this.setupContexts(newState, transition); // Check if a redirect occurred in enter/setup\n\n        if (transition.isAborted) {\n          // TODO: cleaner way? distinguish b/w targetRouteInfos?\n          this.state.routeInfos = this.currentRouteInfos;\n          return _rsvp.Promise.reject(logAbort(transition));\n        }\n\n        this._updateURL(transition, newState);\n\n        transition.isActive = false;\n        this.activeTransition = undefined;\n        this.triggerEvent(this.currentRouteInfos, true, 'didTransition', []);\n        this.didTransition(this.currentRouteInfos);\n        this.toInfos(transition, newState.routeInfos, true);\n        this.routeDidChange(transition);\n        log(this, transition.sequence, 'TRANSITION COMPLETE.'); // Resolve with the final route.\n\n        return routeInfos[routeInfos.length - 1].route;\n      } catch (e) {\n        if (!(e instanceof TransitionAbortedError)) {\n          var infos = transition[STATE_SYMBOL].routeInfos;\n          transition.trigger(true, 'error', e, transition, infos[infos.length - 1].route);\n          transition.abort();\n        }\n\n        throw e;\n      }\n    }\n    /**\n    @private\n       Takes an Array of `RouteInfo`s, figures out which ones are\n    exiting, entering, or changing contexts, and calls the\n    proper route hooks.\n       For example, consider the following tree of routes. Each route is\n    followed by the URL segment it handles.\n       ```\n    |~index (\"/\")\n    | |~posts (\"/posts\")\n    | | |-showPost (\"/:id\")\n    | | |-newPost (\"/new\")\n    | | |-editPost (\"/edit\")\n    | |~about (\"/about/:id\")\n    ```\n       Consider the following transitions:\n       1. A URL transition to `/posts/1`.\n       1. Triggers the `*model` callbacks on the\n          `index`, `posts`, and `showPost` routes\n       2. Triggers the `enter` callback on the same\n       3. Triggers the `setup` callback on the same\n    2. A direct transition to `newPost`\n       1. Triggers the `exit` callback on `showPost`\n       2. Triggers the `enter` callback on `newPost`\n       3. Triggers the `setup` callback on `newPost`\n    3. A direct transition to `about` with a specified\n       context object\n       1. Triggers the `exit` callback on `newPost`\n          and `posts`\n       2. Triggers the `serialize` callback on `about`\n       3. Triggers the `enter` callback on `about`\n       4. Triggers the `setup` callback on `about`\n       @param {Router} transition\n    @param {TransitionState} newState\n    */\n\n\n    setupContexts(newState, transition) {\n      var partition = this.partitionRoutes(this.state, newState);\n      var i, l, route;\n\n      for (i = 0, l = partition.exited.length; i < l; i++) {\n        route = partition.exited[i].route;\n        delete route.context;\n\n        if (route !== undefined) {\n          if (route._internalReset !== undefined) {\n            route._internalReset(true, transition);\n          }\n\n          if (route.exit !== undefined) {\n            route.exit(transition);\n          }\n        }\n      }\n\n      var oldState = this.oldState = this.state;\n      this.state = newState;\n      var currentRouteInfos = this.currentRouteInfos = partition.unchanged.slice();\n\n      try {\n        for (i = 0, l = partition.reset.length; i < l; i++) {\n          route = partition.reset[i].route;\n\n          if (route !== undefined) {\n            if (route._internalReset !== undefined) {\n              route._internalReset(false, transition);\n            }\n          }\n        }\n\n        for (i = 0, l = partition.updatedContext.length; i < l; i++) {\n          this.routeEnteredOrUpdated(currentRouteInfos, partition.updatedContext[i], false, transition);\n        }\n\n        for (i = 0, l = partition.entered.length; i < l; i++) {\n          this.routeEnteredOrUpdated(currentRouteInfos, partition.entered[i], true, transition);\n        }\n      } catch (e) {\n        this.state = oldState;\n        this.currentRouteInfos = oldState.routeInfos;\n        throw e;\n      }\n\n      this.state.queryParams = this.finalizeQueryParamChange(currentRouteInfos, newState.queryParams, transition);\n    }\n    /**\n    @private\n       Fires queryParamsDidChange event\n    */\n\n\n    fireQueryParamDidChange(newState, queryParamChangelist) {\n      // If queryParams changed trigger event\n      if (queryParamChangelist) {\n        // This is a little hacky but we need some way of storing\n        // changed query params given that no activeTransition\n        // is guaranteed to have occurred.\n        this._changedQueryParams = queryParamChangelist.all;\n        this.triggerEvent(newState.routeInfos, true, 'queryParamsDidChange', [queryParamChangelist.changed, queryParamChangelist.all, queryParamChangelist.removed]);\n        this._changedQueryParams = undefined;\n      }\n    }\n    /**\n    @private\n       Helper method used by setupContexts. Handles errors or redirects\n    that may happen in enter/setup.\n    */\n\n\n    routeEnteredOrUpdated(currentRouteInfos, routeInfo, enter, transition) {\n      var route = routeInfo.route,\n          context = routeInfo.context;\n\n      function _routeEnteredOrUpdated(route) {\n        if (enter) {\n          if (route.enter !== undefined) {\n            route.enter(transition);\n          }\n        }\n\n        if (transition && transition.isAborted) {\n          throw new TransitionAbortedError();\n        }\n\n        route.context = context;\n\n        if (route.contextDidChange !== undefined) {\n          route.contextDidChange();\n        }\n\n        if (route.setup !== undefined) {\n          route.setup(context, transition);\n        }\n\n        if (transition && transition.isAborted) {\n          throw new TransitionAbortedError();\n        }\n\n        currentRouteInfos.push(routeInfo);\n        return route;\n      } // If the route doesn't exist, it means we haven't resolved the route promise yet\n\n\n      if (route === undefined) {\n        routeInfo.routePromise = routeInfo.routePromise.then(_routeEnteredOrUpdated);\n      } else {\n        _routeEnteredOrUpdated(route);\n      }\n\n      return true;\n    }\n    /**\n    @private\n       This function is called when transitioning from one URL to\n    another to determine which routes are no longer active,\n    which routes are newly active, and which routes remain\n    active but have their context changed.\n       Take a list of old routes and new routes and partition\n    them into four buckets:\n       * unchanged: the route was active in both the old and\n      new URL, and its context remains the same\n    * updated context: the route was active in both the\n      old and new URL, but its context changed. The route's\n      `setup` method, if any, will be called with the new\n      context.\n    * exited: the route was active in the old URL, but is\n      no longer active.\n    * entered: the route was not active in the old URL, but\n      is now active.\n       The PartitionedRoutes structure has four fields:\n       * `updatedContext`: a list of `RouteInfo` objects that\n      represent routes that remain active but have a changed\n      context\n    * `entered`: a list of `RouteInfo` objects that represent\n      routes that are newly active\n    * `exited`: a list of `RouteInfo` objects that are no\n      longer active.\n    * `unchanged`: a list of `RouteInfo` objects that remain active.\n       @param {Array[InternalRouteInfo]} oldRoutes a list of the route\n      information for the previous URL (or `[]` if this is the\n      first handled transition)\n    @param {Array[InternalRouteInfo]} newRoutes a list of the route\n      information for the new URL\n       @return {Partition}\n    */\n\n\n    partitionRoutes(oldState, newState) {\n      var oldRouteInfos = oldState.routeInfos;\n      var newRouteInfos = newState.routeInfos;\n      var routes = {\n        updatedContext: [],\n        exited: [],\n        entered: [],\n        unchanged: [],\n        reset: []\n      };\n      var routeChanged,\n          contextChanged = false,\n          i,\n          l;\n\n      for (i = 0, l = newRouteInfos.length; i < l; i++) {\n        var oldRouteInfo = oldRouteInfos[i],\n            newRouteInfo = newRouteInfos[i];\n\n        if (!oldRouteInfo || oldRouteInfo.route !== newRouteInfo.route) {\n          routeChanged = true;\n        }\n\n        if (routeChanged) {\n          routes.entered.push(newRouteInfo);\n\n          if (oldRouteInfo) {\n            routes.exited.unshift(oldRouteInfo);\n          }\n        } else if (contextChanged || oldRouteInfo.context !== newRouteInfo.context) {\n          contextChanged = true;\n          routes.updatedContext.push(newRouteInfo);\n        } else {\n          routes.unchanged.push(oldRouteInfo);\n        }\n      }\n\n      for (i = newRouteInfos.length, l = oldRouteInfos.length; i < l; i++) {\n        routes.exited.unshift(oldRouteInfos[i]);\n      }\n\n      routes.reset = routes.updatedContext.slice();\n      routes.reset.reverse();\n      return routes;\n    }\n\n    _updateURL(transition, state) {\n      var urlMethod = transition.urlMethod;\n\n      if (!urlMethod) {\n        return;\n      }\n\n      var {\n        routeInfos\n      } = state;\n      var {\n        name: routeName\n      } = routeInfos[routeInfos.length - 1];\n      var params = {};\n\n      for (var i = routeInfos.length - 1; i >= 0; --i) {\n        var routeInfo = routeInfos[i];\n        merge(params, routeInfo.params);\n\n        if (routeInfo.route.inaccessibleByURL) {\n          urlMethod = null;\n        }\n      }\n\n      if (urlMethod) {\n        params.queryParams = transition._visibleQueryParams || state.queryParams;\n        var url = this.recognizer.generate(routeName, params); // transitions during the initial transition must always use replaceURL.\n        // When the app boots, you are at a url, e.g. /foo. If some route\n        // redirects to bar as part of the initial transition, you don't want to\n        // add a history entry for /foo. If you do, pressing back will immediately\n        // hit the redirect again and take you back to /bar, thus killing the back\n        // button\n\n        var initial = transition.isCausedByInitialTransition; // say you are at / and you click a link to route /foo. In /foo's\n        // route, the transition is aborted using replacewith('/bar').\n        // Because the current url is still /, the history entry for / is\n        // removed from the history. Clicking back will take you to the page\n        // you were on before /, which is often not even the app, thus killing\n        // the back button. That's why updateURL is always correct for an\n        // aborting transition that's not the initial transition\n\n        var replaceAndNotAborting = urlMethod === 'replace' && !transition.isCausedByAbortingTransition; // because calling refresh causes an aborted transition, this needs to be\n        // special cased - if the initial transition is a replace transition, the\n        // urlMethod should be honored here.\n\n        var isQueryParamsRefreshTransition = transition.queryParamsOnly && urlMethod === 'replace'; // say you are at / and you a `replaceWith(/foo)` is called. Then, that\n        // transition is aborted with `replaceWith(/bar)`. At the end, we should\n        // end up with /bar replacing /. We are replacing the replace. We only\n        // will replace the initial route if all subsequent aborts are also\n        // replaces. However, there is some ambiguity around the correct behavior\n        // here.\n\n        var replacingReplace = urlMethod === 'replace' && transition.isCausedByAbortingReplaceTransition;\n\n        if (initial || replaceAndNotAborting || isQueryParamsRefreshTransition || replacingReplace) {\n          this.replaceURL(url);\n        } else {\n          this.updateURL(url);\n        }\n      }\n    }\n\n    finalizeQueryParamChange(resolvedHandlers, newQueryParams, transition) {\n      // We fire a finalizeQueryParamChange event which\n      // gives the new route hierarchy a chance to tell\n      // us which query params it's consuming and what\n      // their final values are. If a query param is\n      // no longer consumed in the final route hierarchy,\n      // its serialized segment will be removed\n      // from the URL.\n      for (var k in newQueryParams) {\n        if (newQueryParams.hasOwnProperty(k) && newQueryParams[k] === null) {\n          delete newQueryParams[k];\n        }\n      }\n\n      var finalQueryParamsArray = [];\n      this.triggerEvent(resolvedHandlers, true, 'finalizeQueryParamChange', [newQueryParams, finalQueryParamsArray, transition]);\n\n      if (transition) {\n        transition._visibleQueryParams = {};\n      }\n\n      var finalQueryParams = {};\n\n      for (var i = 0, len = finalQueryParamsArray.length; i < len; ++i) {\n        var qp = finalQueryParamsArray[i];\n        finalQueryParams[qp.key] = qp.value;\n\n        if (transition && qp.visible !== false) {\n          transition._visibleQueryParams[qp.key] = qp.value;\n        }\n      }\n\n      return finalQueryParams;\n    }\n\n    toReadOnlyInfos(newTransition, newState) {\n      var oldRouteInfos = this.state.routeInfos;\n      this.fromInfos(newTransition, oldRouteInfos);\n      this.toInfos(newTransition, newState.routeInfos);\n      this._lastQueryParams = newState.queryParams;\n    }\n\n    fromInfos(newTransition, oldRouteInfos) {\n      if (newTransition !== undefined && oldRouteInfos.length > 0) {\n        var fromInfos = toReadOnlyRouteInfo(oldRouteInfos, (0, _polyfills.assign)({}, this._lastQueryParams), true);\n        newTransition.from = fromInfos[fromInfos.length - 1] || null;\n      }\n    }\n\n    toInfos(newTransition, newRouteInfos, includeAttributes = false) {\n      if (newTransition !== undefined && newRouteInfos.length > 0) {\n        var toInfos = toReadOnlyRouteInfo(newRouteInfos, (0, _polyfills.assign)({}, newTransition[QUERY_PARAMS_SYMBOL]), includeAttributes);\n        newTransition.to = toInfos[toInfos.length - 1] || null;\n      }\n    }\n\n    notifyExistingHandlers(newState, newTransition) {\n      var oldRouteInfos = this.state.routeInfos,\n          i,\n          oldRouteInfoLen,\n          oldHandler,\n          newRouteInfo;\n      oldRouteInfoLen = oldRouteInfos.length;\n\n      for (i = 0; i < oldRouteInfoLen; i++) {\n        oldHandler = oldRouteInfos[i];\n        newRouteInfo = newState.routeInfos[i];\n\n        if (!newRouteInfo || oldHandler.name !== newRouteInfo.name) {\n          break;\n        }\n\n        if (!newRouteInfo.isResolved) {}\n      }\n\n      this.triggerEvent(oldRouteInfos, true, 'willTransition', [newTransition]);\n      this.routeWillChange(newTransition);\n      this.willTransition(oldRouteInfos, newState.routeInfos, newTransition);\n    }\n    /**\n      Clears the current and target route routes and triggers exit\n      on each of them starting at the leaf and traversing up through\n      its ancestors.\n    */\n\n\n    reset() {\n      if (this.state) {\n        forEach(this.state.routeInfos.slice().reverse(), function (routeInfo) {\n          var route = routeInfo.route;\n\n          if (route !== undefined) {\n            if (route.exit !== undefined) {\n              route.exit();\n            }\n          }\n\n          return true;\n        });\n      }\n\n      this.oldState = undefined;\n      this.state = new TransitionState();\n      this.currentRouteInfos = undefined;\n    }\n    /**\n      let handler = routeInfo.handler;\n      The entry point for handling a change to the URL (usually\n      via the back and forward button).\n         Returns an Array of handlers and the parameters associated\n      with those parameters.\n         @param {String} url a URL to process\n         @return {Array} an Array of `[handler, parameter]` tuples\n    */\n\n\n    handleURL(url) {\n      // Perform a URL-based transition, but don't change\n      // the URL afterward, since it already happened.\n      if (url.charAt(0) !== '/') {\n        url = '/' + url;\n      }\n\n      return this.doTransition(url).method(null);\n    }\n    /**\n      Transition into the specified named route.\n         If necessary, trigger the exit callback on any routes\n      that are no longer represented by the target route.\n         @param {String} name the name of the route\n    */\n\n\n    transitionTo(name, ...contexts) {\n      if (typeof name === 'object') {\n        contexts.push(name);\n        return this.doTransition(undefined, contexts, false);\n      }\n\n      return this.doTransition(name, contexts);\n    }\n\n    intermediateTransitionTo(name, ...args) {\n      return this.doTransition(name, args, true);\n    }\n\n    refresh(pivotRoute) {\n      var previousTransition = this.activeTransition;\n      var state = previousTransition ? previousTransition[STATE_SYMBOL] : this.state;\n      var routeInfos = state.routeInfos;\n\n      if (pivotRoute === undefined) {\n        pivotRoute = routeInfos[0].route;\n      }\n\n      log(this, 'Starting a refresh transition');\n      var name = routeInfos[routeInfos.length - 1].name;\n      var intent = new NamedTransitionIntent(this, name, pivotRoute, [], this._changedQueryParams || state.queryParams);\n      var newTransition = this.transitionByIntent(intent, false); // if the previous transition is a replace transition, that needs to be preserved\n\n      if (previousTransition && previousTransition.urlMethod === 'replace') {\n        newTransition.method(previousTransition.urlMethod);\n      }\n\n      return newTransition;\n    }\n    /**\n      Identical to `transitionTo` except that the current URL will be replaced\n      if possible.\n         This method is intended primarily for use with `replaceState`.\n         @param {String} name the name of the route\n    */\n\n\n    replaceWith(name) {\n      return this.doTransition(name).method('replace');\n    }\n    /**\n      Take a named route and context objects and generate a\n      URL.\n         @param {String} name the name of the route to generate\n        a URL for\n      @param {...Object} objects a list of objects to serialize\n         @return {String} a URL\n    */\n\n\n    generate(routeName, ...args) {\n      var partitionedArgs = extractQueryParams(args),\n          suppliedParams = partitionedArgs[0],\n          queryParams = partitionedArgs[1]; // Construct a TransitionIntent with the provided params\n      // and apply it to the present state of the router.\n\n      var intent = new NamedTransitionIntent(this, routeName, undefined, suppliedParams);\n      var state = intent.applyToState(this.state, false);\n      var params = {};\n\n      for (var i = 0, len = state.routeInfos.length; i < len; ++i) {\n        var routeInfo = state.routeInfos[i];\n        var routeParams = routeInfo.serialize();\n        merge(params, routeParams);\n      }\n\n      params.queryParams = queryParams;\n      return this.recognizer.generate(routeName, params);\n    }\n\n    applyIntent(routeName, contexts) {\n      var intent = new NamedTransitionIntent(this, routeName, undefined, contexts);\n      var state = this.activeTransition && this.activeTransition[STATE_SYMBOL] || this.state;\n      return intent.applyToState(state, false);\n    }\n\n    isActiveIntent(routeName, contexts, queryParams, _state) {\n      var state = _state || this.state,\n          targetRouteInfos = state.routeInfos,\n          routeInfo,\n          len;\n\n      if (!targetRouteInfos.length) {\n        return false;\n      }\n\n      var targetHandler = targetRouteInfos[targetRouteInfos.length - 1].name;\n      var recogHandlers = this.recognizer.handlersFor(targetHandler);\n      var index = 0;\n\n      for (len = recogHandlers.length; index < len; ++index) {\n        routeInfo = targetRouteInfos[index];\n\n        if (routeInfo.name === routeName) {\n          break;\n        }\n      }\n\n      if (index === recogHandlers.length) {\n        // The provided route name isn't even in the route hierarchy.\n        return false;\n      }\n\n      var testState = new TransitionState();\n      testState.routeInfos = targetRouteInfos.slice(0, index + 1);\n      recogHandlers = recogHandlers.slice(0, index + 1);\n      var intent = new NamedTransitionIntent(this, targetHandler, undefined, contexts);\n      var newState = intent.applyToHandlers(testState, recogHandlers, targetHandler, true, true);\n      var routesEqual = routeInfosEqual(newState.routeInfos, testState.routeInfos);\n\n      if (!queryParams || !routesEqual) {\n        return routesEqual;\n      } // Get a hash of QPs that will still be active on new route\n\n\n      var activeQPsOnNewHandler = {};\n      merge(activeQPsOnNewHandler, queryParams);\n      var activeQueryParams = state.queryParams;\n\n      for (var key in activeQueryParams) {\n        if (activeQueryParams.hasOwnProperty(key) && activeQPsOnNewHandler.hasOwnProperty(key)) {\n          activeQPsOnNewHandler[key] = activeQueryParams[key];\n        }\n      }\n\n      return routesEqual && !getChangelist(activeQPsOnNewHandler, queryParams);\n    }\n\n    isActive(routeName, ...args) {\n      var partitionedArgs = extractQueryParams(args);\n      return this.isActiveIntent(routeName, partitionedArgs[0], partitionedArgs[1]);\n    }\n\n    trigger(name, ...args) {\n      this.triggerEvent(this.currentRouteInfos, false, name, args);\n    }\n\n  }\n\n  function routeInfosEqual(routeInfos, otherRouteInfos) {\n    if (routeInfos.length !== otherRouteInfos.length) {\n      return false;\n    }\n\n    for (var i = 0, len = routeInfos.length; i < len; ++i) {\n      if (routeInfos[i] !== otherRouteInfos[i]) {\n        return false;\n      }\n    }\n\n    return true;\n  }\n\n  function routeInfosSameExceptQueryParams(routeInfos, otherRouteInfos) {\n    if (routeInfos.length !== otherRouteInfos.length) {\n      return false;\n    }\n\n    for (var i = 0, len = routeInfos.length; i < len; ++i) {\n      if (routeInfos[i].name !== otherRouteInfos[i].name) {\n        return false;\n      }\n\n      if (!paramsEqual(routeInfos[i].params, otherRouteInfos[i].params)) {\n        return false;\n      }\n    }\n\n    return true;\n  }\n\n  function paramsEqual(params, otherParams) {\n    if (!params && !otherParams) {\n      return true;\n    } else if (!params && !!otherParams || !!params && !otherParams) {\n      // one is falsy but other is not;\n      return false;\n    }\n\n    var keys = Object.keys(params);\n    var otherKeys = Object.keys(otherParams);\n\n    if (keys.length !== otherKeys.length) {\n      return false;\n    }\n\n    for (var i = 0, len = keys.length; i < len; ++i) {\n      var key = keys[i];\n\n      if (params[key] !== otherParams[key]) {\n        return false;\n      }\n    }\n\n    return true;\n  }\n\n  var _default = Router;\n  _exports.default = _default;\n});","define(\"rsvp\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.asap = asap;\n  _exports.all = all$1;\n  _exports.allSettled = allSettled;\n  _exports.race = race$1;\n  _exports.hash = hash;\n  _exports.hashSettled = hashSettled;\n  _exports.rethrow = rethrow;\n  _exports.defer = defer;\n  _exports.denodeify = denodeify;\n  _exports.configure = configure;\n  _exports.on = on;\n  _exports.off = off;\n  _exports.resolve = resolve$2;\n  _exports.reject = reject$2;\n  _exports.map = map;\n  _exports.filter = filter;\n  _exports.async = _exports.EventTarget = _exports.Promise = _exports.cast = _exports.default = void 0;\n\n  function callbacksFor(object) {\n    var callbacks = object._promiseCallbacks;\n\n    if (!callbacks) {\n      callbacks = object._promiseCallbacks = {};\n    }\n\n    return callbacks;\n  }\n  /**\n    @class EventTarget\n    @for rsvp\n    @public\n  */\n\n\n  var EventTarget = {\n    /**\n      `EventTarget.mixin` extends an object with EventTarget methods. For\n      Example:\n       ```javascript\n      import EventTarget from 'rsvp';\n       let object = {};\n       EventTarget.mixin(object);\n       object.on('finished', function(event) {\n        // handle event\n      });\n       object.trigger('finished', { detail: value });\n      ```\n       `EventTarget.mixin` also works with prototypes:\n       ```javascript\n      import EventTarget from 'rsvp';\n       let Person = function() {};\n      EventTarget.mixin(Person.prototype);\n       let yehuda = new Person();\n      let tom = new Person();\n       yehuda.on('poke', function(event) {\n        console.log('Yehuda says OW');\n      });\n       tom.on('poke', function(event) {\n        console.log('Tom says OW');\n      });\n       yehuda.trigger('poke');\n      tom.trigger('poke');\n      ```\n       @method mixin\n      @for rsvp\n      @private\n      @param {Object} object object to extend with EventTarget methods\n    */\n    mixin(object) {\n      object.on = this.on;\n      object.off = this.off;\n      object.trigger = this.trigger;\n      object._promiseCallbacks = undefined;\n      return object;\n    },\n\n    /**\n      Registers a callback to be executed when `eventName` is triggered\n       ```javascript\n      object.on('event', function(eventInfo){\n        // handle the event\n      });\n       object.trigger('event');\n      ```\n       @method on\n      @for EventTarget\n      @private\n      @param {String} eventName name of the event to listen for\n      @param {Function} callback function to be called when the event is triggered.\n    */\n    on(eventName, callback) {\n      if (typeof callback !== 'function') {\n        throw new TypeError('Callback must be a function');\n      }\n\n      var allCallbacks = callbacksFor(this);\n      var callbacks = allCallbacks[eventName];\n\n      if (!callbacks) {\n        callbacks = allCallbacks[eventName] = [];\n      }\n\n      if (callbacks.indexOf(callback) === -1) {\n        callbacks.push(callback);\n      }\n    },\n\n    /**\n      You can use `off` to stop firing a particular callback for an event:\n       ```javascript\n      function doStuff() { // do stuff! }\n      object.on('stuff', doStuff);\n       object.trigger('stuff'); // doStuff will be called\n       // Unregister ONLY the doStuff callback\n      object.off('stuff', doStuff);\n      object.trigger('stuff'); // doStuff will NOT be called\n      ```\n       If you don't pass a `callback` argument to `off`, ALL callbacks for the\n      event will not be executed when the event fires. For example:\n       ```javascript\n      let callback1 = function(){};\n      let callback2 = function(){};\n       object.on('stuff', callback1);\n      object.on('stuff', callback2);\n       object.trigger('stuff'); // callback1 and callback2 will be executed.\n       object.off('stuff');\n      object.trigger('stuff'); // callback1 and callback2 will not be executed!\n      ```\n       @method off\n      @for rsvp\n      @private\n      @param {String} eventName event to stop listening to\n      @param {Function} [callback] optional argument. If given, only the function\n      given will be removed from the event's callback queue. If no `callback`\n      argument is given, all callbacks will be removed from the event's callback\n      queue.\n    */\n    off(eventName, callback) {\n      var allCallbacks = callbacksFor(this);\n\n      if (!callback) {\n        allCallbacks[eventName] = [];\n        return;\n      }\n\n      var callbacks = allCallbacks[eventName];\n      var index = callbacks.indexOf(callback);\n\n      if (index !== -1) {\n        callbacks.splice(index, 1);\n      }\n    },\n\n    /**\n      Use `trigger` to fire custom events. For example:\n       ```javascript\n      object.on('foo', function(){\n        console.log('foo event happened!');\n      });\n      object.trigger('foo');\n      // 'foo event happened!' logged to the console\n      ```\n       You can also pass a value as a second argument to `trigger` that will be\n      passed as an argument to all event listeners for the event:\n       ```javascript\n      object.on('foo', function(value){\n        console.log(value.name);\n      });\n       object.trigger('foo', { name: 'bar' });\n      // 'bar' logged to the console\n      ```\n       @method trigger\n      @for rsvp\n      @private\n      @param {String} eventName name of the event to be triggered\n      @param {*} [options] optional value to be passed to any event handlers for\n      the given `eventName`\n    */\n    trigger(eventName, options, label) {\n      var allCallbacks = callbacksFor(this);\n      var callbacks = allCallbacks[eventName];\n\n      if (callbacks) {\n        // Don't cache the callbacks.length since it may grow\n        var callback;\n\n        for (var i = 0; i < callbacks.length; i++) {\n          callback = callbacks[i];\n          callback(options, label);\n        }\n      }\n    }\n\n  };\n  _exports.EventTarget = EventTarget;\n  var config = {\n    instrument: false\n  };\n  EventTarget['mixin'](config);\n\n  function configure(name, value) {\n    if (arguments.length === 2) {\n      config[name] = value;\n    } else {\n      return config[name];\n    }\n  }\n\n  var queue = [];\n\n  function scheduleFlush() {\n    setTimeout(() => {\n      for (var i = 0; i < queue.length; i++) {\n        var entry = queue[i];\n        var payload = entry.payload;\n        payload.guid = payload.key + payload.id;\n        payload.childGuid = payload.key + payload.childId;\n\n        if (payload.error) {\n          payload.stack = payload.error.stack;\n        }\n\n        config['trigger'](entry.name, entry.payload);\n      }\n\n      queue.length = 0;\n    }, 50);\n  }\n\n  function instrument(eventName, promise, child) {\n    if (1 === queue.push({\n      name: eventName,\n      payload: {\n        key: promise._guidKey,\n        id: promise._id,\n        eventName: eventName,\n        detail: promise._result,\n        childId: child && child._id,\n        label: promise._label,\n        timeStamp: Date.now(),\n        error: config[\"instrument-with-stack\"] ? new Error(promise._label) : null\n      }\n    })) {\n      scheduleFlush();\n    }\n  }\n  /**\n    `Promise.resolve` returns a promise that will become resolved with the\n    passed `value`. It is shorthand for the following:\n  \n    ```javascript\n    import Promise from 'rsvp';\n  \n    let promise = new Promise(function(resolve, reject){\n      resolve(1);\n    });\n  \n    promise.then(function(value){\n      // value === 1\n    });\n    ```\n  \n    Instead of writing the above, your code now simply becomes the following:\n  \n    ```javascript\n    import Promise from 'rsvp';\n  \n    let promise = RSVP.Promise.resolve(1);\n  \n    promise.then(function(value){\n      // value === 1\n    });\n    ```\n  \n    @method resolve\n    @for Promise\n    @static\n    @param {*} object value that the returned promise will be resolved with\n    @param {String} [label] optional string for identifying the returned promise.\n    Useful for tooling.\n    @return {Promise} a promise that will become fulfilled with the given\n    `value`\n  */\n\n\n  function resolve$$1(object, label) {\n    /*jshint validthis:true */\n    var Constructor = this;\n\n    if (object && typeof object === 'object' && object.constructor === Constructor) {\n      return object;\n    }\n\n    var promise = new Constructor(noop, label);\n    resolve$1(promise, object);\n    return promise;\n  }\n\n  function withOwnPromise() {\n    return new TypeError('A promises callback cannot return that same promise.');\n  }\n\n  function objectOrFunction(x) {\n    var type = typeof x;\n    return x !== null && (type === 'object' || type === 'function');\n  }\n\n  function noop() {}\n\n  var PENDING = void 0;\n  var FULFILLED = 1;\n  var REJECTED = 2;\n\n  function tryThen(then$$1, value, fulfillmentHandler, rejectionHandler) {\n    try {\n      then$$1.call(value, fulfillmentHandler, rejectionHandler);\n    } catch (e) {\n      return e;\n    }\n  }\n\n  function handleForeignThenable(promise, thenable, then$$1) {\n    config.async(promise => {\n      var sealed = false;\n      var error = tryThen(then$$1, thenable, value => {\n        if (sealed) {\n          return;\n        }\n\n        sealed = true;\n\n        if (thenable === value) {\n          fulfill(promise, value);\n        } else {\n          resolve$1(promise, value);\n        }\n      }, reason => {\n        if (sealed) {\n          return;\n        }\n\n        sealed = true;\n        reject(promise, reason);\n      }, 'Settle: ' + (promise._label || ' unknown promise'));\n\n      if (!sealed && error) {\n        sealed = true;\n        reject(promise, error);\n      }\n    }, promise);\n  }\n\n  function handleOwnThenable(promise, thenable) {\n    if (thenable._state === FULFILLED) {\n      fulfill(promise, thenable._result);\n    } else if (thenable._state === REJECTED) {\n      thenable._onError = null;\n      reject(promise, thenable._result);\n    } else {\n      subscribe(thenable, undefined, value => {\n        if (thenable === value) {\n          fulfill(promise, value);\n        } else {\n          resolve$1(promise, value);\n        }\n      }, reason => reject(promise, reason));\n    }\n  }\n\n  function handleMaybeThenable(promise, maybeThenable, then$$1) {\n    var isOwnThenable = maybeThenable.constructor === promise.constructor && then$$1 === then && promise.constructor.resolve === resolve$$1;\n\n    if (isOwnThenable) {\n      handleOwnThenable(promise, maybeThenable);\n    } else if (typeof then$$1 === 'function') {\n      handleForeignThenable(promise, maybeThenable, then$$1);\n    } else {\n      fulfill(promise, maybeThenable);\n    }\n  }\n\n  function resolve$1(promise, value) {\n    if (promise === value) {\n      fulfill(promise, value);\n    } else if (objectOrFunction(value)) {\n      var then$$1;\n\n      try {\n        then$$1 = value.then;\n      } catch (error) {\n        reject(promise, error);\n        return;\n      }\n\n      handleMaybeThenable(promise, value, then$$1);\n    } else {\n      fulfill(promise, value);\n    }\n  }\n\n  function publishRejection(promise) {\n    if (promise._onError) {\n      promise._onError(promise._result);\n    }\n\n    publish(promise);\n  }\n\n  function fulfill(promise, value) {\n    if (promise._state !== PENDING) {\n      return;\n    }\n\n    promise._result = value;\n    promise._state = FULFILLED;\n\n    if (promise._subscribers.length === 0) {\n      if (config.instrument) {\n        instrument('fulfilled', promise);\n      }\n    } else {\n      config.async(publish, promise);\n    }\n  }\n\n  function reject(promise, reason) {\n    if (promise._state !== PENDING) {\n      return;\n    }\n\n    promise._state = REJECTED;\n    promise._result = reason;\n    config.async(publishRejection, promise);\n  }\n\n  function subscribe(parent, child, onFulfillment, onRejection) {\n    var subscribers = parent._subscribers;\n    var length = subscribers.length;\n    parent._onError = null;\n    subscribers[length] = child;\n    subscribers[length + FULFILLED] = onFulfillment;\n    subscribers[length + REJECTED] = onRejection;\n\n    if (length === 0 && parent._state) {\n      config.async(publish, parent);\n    }\n  }\n\n  function publish(promise) {\n    var subscribers = promise._subscribers;\n    var settled = promise._state;\n\n    if (config.instrument) {\n      instrument(settled === FULFILLED ? 'fulfilled' : 'rejected', promise);\n    }\n\n    if (subscribers.length === 0) {\n      return;\n    }\n\n    var child,\n        callback,\n        result = promise._result;\n\n    for (var i = 0; i < subscribers.length; i += 3) {\n      child = subscribers[i];\n      callback = subscribers[i + settled];\n\n      if (child) {\n        invokeCallback(settled, child, callback, result);\n      } else {\n        callback(result);\n      }\n    }\n\n    promise._subscribers.length = 0;\n  }\n\n  function invokeCallback(state, promise, callback, result) {\n    var hasCallback = typeof callback === 'function';\n    var value,\n        succeeded = true,\n        error;\n\n    if (hasCallback) {\n      try {\n        value = callback(result);\n      } catch (e) {\n        succeeded = false;\n        error = e;\n      }\n    } else {\n      value = result;\n    }\n\n    if (promise._state !== PENDING) {// noop\n    } else if (value === promise) {\n      reject(promise, withOwnPromise());\n    } else if (succeeded === false) {\n      reject(promise, error);\n    } else if (hasCallback) {\n      resolve$1(promise, value);\n    } else if (state === FULFILLED) {\n      fulfill(promise, value);\n    } else if (state === REJECTED) {\n      reject(promise, value);\n    }\n  }\n\n  function initializePromise(promise, resolver) {\n    var resolved = false;\n\n    try {\n      resolver(value => {\n        if (resolved) {\n          return;\n        }\n\n        resolved = true;\n        resolve$1(promise, value);\n      }, reason => {\n        if (resolved) {\n          return;\n        }\n\n        resolved = true;\n        reject(promise, reason);\n      });\n    } catch (e) {\n      reject(promise, e);\n    }\n  }\n\n  function then(onFulfillment, onRejection, label) {\n    var parent = this;\n    var state = parent._state;\n\n    if (state === FULFILLED && !onFulfillment || state === REJECTED && !onRejection) {\n      config.instrument && instrument('chained', parent, parent);\n      return parent;\n    }\n\n    parent._onError = null;\n    var child = new parent.constructor(noop, label);\n    var result = parent._result;\n    config.instrument && instrument('chained', parent, child);\n\n    if (state === PENDING) {\n      subscribe(parent, child, onFulfillment, onRejection);\n    } else {\n      var callback = state === FULFILLED ? onFulfillment : onRejection;\n      config.async(() => invokeCallback(state, child, callback, result));\n    }\n\n    return child;\n  }\n\n  class Enumerator {\n    constructor(Constructor, input, abortOnReject, label) {\n      this._instanceConstructor = Constructor;\n      this.promise = new Constructor(noop, label);\n      this._abortOnReject = abortOnReject;\n      this._isUsingOwnPromise = Constructor === Promise;\n      this._isUsingOwnResolve = Constructor.resolve === resolve$$1;\n\n      this._init(...arguments);\n    }\n\n    _init(Constructor, input) {\n      var len = input.length || 0;\n      this.length = len;\n      this._remaining = len;\n      this._result = new Array(len);\n\n      this._enumerate(input);\n    }\n\n    _enumerate(input) {\n      var length = this.length;\n      var promise = this.promise;\n\n      for (var i = 0; promise._state === PENDING && i < length; i++) {\n        this._eachEntry(input[i], i, true);\n      }\n\n      this._checkFullfillment();\n    }\n\n    _checkFullfillment() {\n      if (this._remaining === 0) {\n        var result = this._result;\n        fulfill(this.promise, result);\n        this._result = null;\n      }\n    }\n\n    _settleMaybeThenable(entry, i, firstPass) {\n      var c = this._instanceConstructor;\n\n      if (this._isUsingOwnResolve) {\n        var then$$1,\n            error,\n            succeeded = true;\n\n        try {\n          then$$1 = entry.then;\n        } catch (e) {\n          succeeded = false;\n          error = e;\n        }\n\n        if (then$$1 === then && entry._state !== PENDING) {\n          entry._onError = null;\n\n          this._settledAt(entry._state, i, entry._result, firstPass);\n        } else if (typeof then$$1 !== 'function') {\n          this._settledAt(FULFILLED, i, entry, firstPass);\n        } else if (this._isUsingOwnPromise) {\n          var promise = new c(noop);\n\n          if (succeeded === false) {\n            reject(promise, error);\n          } else {\n            handleMaybeThenable(promise, entry, then$$1);\n\n            this._willSettleAt(promise, i, firstPass);\n          }\n        } else {\n          this._willSettleAt(new c(resolve => resolve(entry)), i, firstPass);\n        }\n      } else {\n        this._willSettleAt(c.resolve(entry), i, firstPass);\n      }\n    }\n\n    _eachEntry(entry, i, firstPass) {\n      if (entry !== null && typeof entry === 'object') {\n        this._settleMaybeThenable(entry, i, firstPass);\n      } else {\n        this._setResultAt(FULFILLED, i, entry, firstPass);\n      }\n    }\n\n    _settledAt(state, i, value, firstPass) {\n      var promise = this.promise;\n\n      if (promise._state === PENDING) {\n        if (this._abortOnReject && state === REJECTED) {\n          reject(promise, value);\n        } else {\n          this._setResultAt(state, i, value, firstPass);\n\n          this._checkFullfillment();\n        }\n      }\n    }\n\n    _setResultAt(state, i, value, firstPass) {\n      this._remaining--;\n      this._result[i] = value;\n    }\n\n    _willSettleAt(promise, i, firstPass) {\n      subscribe(promise, undefined, value => this._settledAt(FULFILLED, i, value, firstPass), reason => this._settledAt(REJECTED, i, reason, firstPass));\n    }\n\n  }\n\n  function setSettledResult(state, i, value) {\n    this._remaining--;\n\n    if (state === FULFILLED) {\n      this._result[i] = {\n        state: 'fulfilled',\n        value: value\n      };\n    } else {\n      this._result[i] = {\n        state: 'rejected',\n        reason: value\n      };\n    }\n  }\n  /**\n    `Promise.all` accepts an array of promises, and returns a new promise which\n    is fulfilled with an array of fulfillment values for the passed promises, or\n    rejected with the reason of the first passed promise to be rejected. It casts all\n    elements of the passed iterable to promises as it runs this algorithm.\n  \n    Example:\n  \n    ```javascript\n    import Promise, { resolve } from 'rsvp';\n  \n    let promise1 = resolve(1);\n    let promise2 = resolve(2);\n    let promise3 = resolve(3);\n    let promises = [ promise1, promise2, promise3 ];\n  \n    Promise.all(promises).then(function(array){\n      // The array here would be [ 1, 2, 3 ];\n    });\n    ```\n  \n    If any of the `promises` given to `RSVP.all` are rejected, the first promise\n    that is rejected will be given as an argument to the returned promises's\n    rejection handler. For example:\n  \n    Example:\n  \n    ```javascript\n    import Promise, { resolve, reject } from 'rsvp';\n  \n    let promise1 = resolve(1);\n    let promise2 = reject(new Error(\"2\"));\n    let promise3 = reject(new Error(\"3\"));\n    let promises = [ promise1, promise2, promise3 ];\n  \n    Promise.all(promises).then(function(array){\n      // Code here never runs because there are rejected promises!\n    }, function(error) {\n      // error.message === \"2\"\n    });\n    ```\n  \n    @method all\n    @for Promise\n    @param {Array} entries array of promises\n    @param {String} [label] optional string for labeling the promise.\n    Useful for tooling.\n    @return {Promise} promise that is fulfilled when all `promises` have been\n    fulfilled, or rejected if any of them become rejected.\n    @static\n  */\n\n\n  function all(entries, label) {\n    if (!Array.isArray(entries)) {\n      return this.reject(new TypeError(\"Promise.all must be called with an array\"), label);\n    }\n\n    return new Enumerator(this, entries, true\n    /* abort on reject */\n    , label).promise;\n  }\n  /**\n    `Promise.race` returns a new promise which is settled in the same way as the\n    first passed promise to settle.\n  \n    Example:\n  \n    ```javascript\n    import Promise from 'rsvp';\n  \n    let promise1 = new Promise(function(resolve, reject){\n      setTimeout(function(){\n        resolve('promise 1');\n      }, 200);\n    });\n  \n    let promise2 = new Promise(function(resolve, reject){\n      setTimeout(function(){\n        resolve('promise 2');\n      }, 100);\n    });\n  \n    Promise.race([promise1, promise2]).then(function(result){\n      // result === 'promise 2' because it was resolved before promise1\n      // was resolved.\n    });\n    ```\n  \n    `Promise.race` is deterministic in that only the state of the first\n    settled promise matters. For example, even if other promises given to the\n    `promises` array argument are resolved, but the first settled promise has\n    become rejected before the other promises became fulfilled, the returned\n    promise will become rejected:\n  \n    ```javascript\n    import Promise from 'rsvp';\n  \n    let promise1 = new Promise(function(resolve, reject){\n      setTimeout(function(){\n        resolve('promise 1');\n      }, 200);\n    });\n  \n    let promise2 = new Promise(function(resolve, reject){\n      setTimeout(function(){\n        reject(new Error('promise 2'));\n      }, 100);\n    });\n  \n    Promise.race([promise1, promise2]).then(function(result){\n      // Code here never runs\n    }, function(reason){\n      // reason.message === 'promise 2' because promise 2 became rejected before\n      // promise 1 became fulfilled\n    });\n    ```\n  \n    An example real-world use case is implementing timeouts:\n  \n    ```javascript\n    import Promise from 'rsvp';\n  \n    Promise.race([ajax('foo.json'), timeout(5000)])\n    ```\n  \n    @method race\n    @for Promise\n    @static\n    @param {Array} entries array of promises to observe\n    @param {String} [label] optional string for describing the promise returned.\n    Useful for tooling.\n    @return {Promise} a promise which settles in the same way as the first passed\n    promise to settle.\n  */\n\n\n  function race(entries, label) {\n    /*jshint validthis:true */\n    var Constructor = this;\n    var promise = new Constructor(noop, label);\n\n    if (!Array.isArray(entries)) {\n      reject(promise, new TypeError('Promise.race must be called with an array'));\n      return promise;\n    }\n\n    for (var i = 0; promise._state === PENDING && i < entries.length; i++) {\n      subscribe(Constructor.resolve(entries[i]), undefined, value => resolve$1(promise, value), reason => reject(promise, reason));\n    }\n\n    return promise;\n  }\n  /**\n    `Promise.reject` returns a promise rejected with the passed `reason`.\n    It is shorthand for the following:\n  \n    ```javascript\n    import Promise from 'rsvp';\n  \n    let promise = new Promise(function(resolve, reject){\n      reject(new Error('WHOOPS'));\n    });\n  \n    promise.then(function(value){\n      // Code here doesn't run because the promise is rejected!\n    }, function(reason){\n      // reason.message === 'WHOOPS'\n    });\n    ```\n  \n    Instead of writing the above, your code now simply becomes the following:\n  \n    ```javascript\n    import Promise from 'rsvp';\n  \n    let promise = Promise.reject(new Error('WHOOPS'));\n  \n    promise.then(function(value){\n      // Code here doesn't run because the promise is rejected!\n    }, function(reason){\n      // reason.message === 'WHOOPS'\n    });\n    ```\n  \n    @method reject\n    @for Promise\n    @static\n    @param {*} reason value that the returned promise will be rejected with.\n    @param {String} [label] optional string for identifying the returned promise.\n    Useful for tooling.\n    @return {Promise} a promise rejected with the given `reason`.\n  */\n\n\n  function reject$1(reason, label) {\n    /*jshint validthis:true */\n    var Constructor = this;\n    var promise = new Constructor(noop, label);\n    reject(promise, reason);\n    return promise;\n  }\n\n  var guidKey = 'rsvp_' + Date.now() + '-';\n  var counter = 0;\n\n  function needsResolver() {\n    throw new TypeError('You must pass a resolver function as the first argument to the promise constructor');\n  }\n\n  function needsNew() {\n    throw new TypeError(\"Failed to construct 'Promise': Please use the 'new' operator, this object constructor cannot be called as a function.\");\n  }\n  /**\n    Promise objects represent the eventual result of an asynchronous operation. The\n    primary way of interacting with a promise is through its `then` method, which\n    registers callbacks to receive either a promise’s eventual value or the reason\n    why the promise cannot be fulfilled.\n  \n    Terminology\n    -----------\n  \n    - `promise` is an object or function with a `then` method whose behavior conforms to this specification.\n    - `thenable` is an object or function that defines a `then` method.\n    - `value` is any legal JavaScript value (including undefined, a thenable, or a promise).\n    - `exception` is a value that is thrown using the throw statement.\n    - `reason` is a value that indicates why a promise was rejected.\n    - `settled` the final resting state of a promise, fulfilled or rejected.\n  \n    A promise can be in one of three states: pending, fulfilled, or rejected.\n  \n    Promises that are fulfilled have a fulfillment value and are in the fulfilled\n    state.  Promises that are rejected have a rejection reason and are in the\n    rejected state.  A fulfillment value is never a thenable.\n  \n    Promises can also be said to *resolve* a value.  If this value is also a\n    promise, then the original promise's settled state will match the value's\n    settled state.  So a promise that *resolves* a promise that rejects will\n    itself reject, and a promise that *resolves* a promise that fulfills will\n    itself fulfill.\n  \n  \n    Basic Usage:\n    ------------\n  \n    ```js\n    let promise = new Promise(function(resolve, reject) {\n      // on success\n      resolve(value);\n  \n      // on failure\n      reject(reason);\n    });\n  \n    promise.then(function(value) {\n      // on fulfillment\n    }, function(reason) {\n      // on rejection\n    });\n    ```\n  \n    Advanced Usage:\n    ---------------\n  \n    Promises shine when abstracting away asynchronous interactions such as\n    `XMLHttpRequest`s.\n  \n    ```js\n    function getJSON(url) {\n      return new Promise(function(resolve, reject){\n        let xhr = new XMLHttpRequest();\n  \n        xhr.open('GET', url);\n        xhr.onreadystatechange = handler;\n        xhr.responseType = 'json';\n        xhr.setRequestHeader('Accept', 'application/json');\n        xhr.send();\n  \n        function handler() {\n          if (this.readyState === this.DONE) {\n            if (this.status === 200) {\n              resolve(this.response);\n            } else {\n              reject(new Error('getJSON: `' + url + '` failed with status: [' + this.status + ']'));\n            }\n          }\n        };\n      });\n    }\n  \n    getJSON('/posts.json').then(function(json) {\n      // on fulfillment\n    }, function(reason) {\n      // on rejection\n    });\n    ```\n  \n    Unlike callbacks, promises are great composable primitives.\n  \n    ```js\n    Promise.all([\n      getJSON('/posts'),\n      getJSON('/comments')\n    ]).then(function(values){\n      values[0] // => postsJSON\n      values[1] // => commentsJSON\n  \n      return values;\n    });\n    ```\n  \n    @class Promise\n    @public\n    @param {function} resolver\n    @param {String} [label] optional string for labeling the promise.\n    Useful for tooling.\n    @constructor\n  */\n\n\n  class Promise {\n    constructor(resolver, label) {\n      this._id = counter++;\n      this._label = label;\n      this._state = undefined;\n      this._result = undefined;\n      this._subscribers = [];\n      config.instrument && instrument('created', this);\n\n      if (noop !== resolver) {\n        typeof resolver !== 'function' && needsResolver();\n        this instanceof Promise ? initializePromise(this, resolver) : needsNew();\n      }\n    }\n\n    _onError(reason) {\n      config.after(() => {\n        if (this._onError) {\n          config.trigger('error', reason, this._label);\n        }\n      });\n    }\n    /**\n      `catch` is simply sugar for `then(undefined, onRejection)` which makes it the same\n      as the catch block of a try/catch statement.\n    \n      ```js\n      function findAuthor(){\n        throw new Error('couldn\\'t find that author');\n      }\n    \n      // synchronous\n      try {\n        findAuthor();\n      } catch(reason) {\n        // something went wrong\n      }\n    \n      // async with promises\n      findAuthor().catch(function(reason){\n        // something went wrong\n      });\n      ```\n    \n      @method catch\n      @param {Function} onRejection\n      @param {String} [label] optional string for labeling the promise.\n      Useful for tooling.\n      @return {Promise}\n    */\n\n\n    catch(onRejection, label) {\n      return this.then(undefined, onRejection, label);\n    }\n    /**\n      `finally` will be invoked regardless of the promise's fate just as native\n      try/catch/finally behaves\n    \n      Synchronous example:\n    \n      ```js\n      findAuthor() {\n        if (Math.random() > 0.5) {\n          throw new Error();\n        }\n        return new Author();\n      }\n    \n      try {\n        return findAuthor(); // succeed or fail\n      } catch(error) {\n        return findOtherAuthor();\n      } finally {\n        // always runs\n        // doesn't affect the return value\n      }\n      ```\n    \n      Asynchronous example:\n    \n      ```js\n      findAuthor().catch(function(reason){\n        return findOtherAuthor();\n      }).finally(function(){\n        // author was either found, or not\n      });\n      ```\n    \n      @method finally\n      @param {Function} callback\n      @param {String} [label] optional string for labeling the promise.\n      Useful for tooling.\n      @return {Promise}\n    */\n\n\n    finally(callback, label) {\n      var promise = this;\n      var constructor = promise.constructor;\n\n      if (typeof callback === 'function') {\n        return promise.then(value => constructor.resolve(callback()).then(() => value), reason => constructor.resolve(callback()).then(() => {\n          throw reason;\n        }));\n      }\n\n      return promise.then(callback, callback);\n    }\n\n  }\n\n  _exports.Promise = Promise;\n  Promise.cast = resolve$$1; // deprecated\n\n  Promise.all = all;\n  Promise.race = race;\n  Promise.resolve = resolve$$1;\n  Promise.reject = reject$1;\n  Promise.prototype._guidKey = guidKey;\n  /**\n    The primary way of interacting with a promise is through its `then` method,\n    which registers callbacks to receive either a promise's eventual value or the\n    reason why the promise cannot be fulfilled.\n  \n    ```js\n    findUser().then(function(user){\n      // user is available\n    }, function(reason){\n      // user is unavailable, and you are given the reason why\n    });\n    ```\n  \n    Chaining\n    --------\n  \n    The return value of `then` is itself a promise.  This second, 'downstream'\n    promise is resolved with the return value of the first promise's fulfillment\n    or rejection handler, or rejected if the handler throws an exception.\n  \n    ```js\n    findUser().then(function (user) {\n      return user.name;\n    }, function (reason) {\n      return 'default name';\n    }).then(function (userName) {\n      // If `findUser` fulfilled, `userName` will be the user's name, otherwise it\n      // will be `'default name'`\n    });\n  \n    findUser().then(function (user) {\n      throw new Error('Found user, but still unhappy');\n    }, function (reason) {\n      throw new Error('`findUser` rejected and we\\'re unhappy');\n    }).then(function (value) {\n      // never reached\n    }, function (reason) {\n      // if `findUser` fulfilled, `reason` will be 'Found user, but still unhappy'.\n      // If `findUser` rejected, `reason` will be '`findUser` rejected and we\\'re unhappy'.\n    });\n    ```\n    If the downstream promise does not specify a rejection handler, rejection reasons will be propagated further downstream.\n  \n    ```js\n    findUser().then(function (user) {\n      throw new PedagogicalException('Upstream error');\n    }).then(function (value) {\n      // never reached\n    }).then(function (value) {\n      // never reached\n    }, function (reason) {\n      // The `PedgagocialException` is propagated all the way down to here\n    });\n    ```\n  \n    Assimilation\n    ------------\n  \n    Sometimes the value you want to propagate to a downstream promise can only be\n    retrieved asynchronously. This can be achieved by returning a promise in the\n    fulfillment or rejection handler. The downstream promise will then be pending\n    until the returned promise is settled. This is called *assimilation*.\n  \n    ```js\n    findUser().then(function (user) {\n      return findCommentsByAuthor(user);\n    }).then(function (comments) {\n      // The user's comments are now available\n    });\n    ```\n  \n    If the assimliated promise rejects, then the downstream promise will also reject.\n  \n    ```js\n    findUser().then(function (user) {\n      return findCommentsByAuthor(user);\n    }).then(function (comments) {\n      // If `findCommentsByAuthor` fulfills, we'll have the value here\n    }, function (reason) {\n      // If `findCommentsByAuthor` rejects, we'll have the reason here\n    });\n    ```\n  \n    Simple Example\n    --------------\n  \n    Synchronous Example\n  \n    ```javascript\n    let result;\n  \n    try {\n      result = findResult();\n      // success\n    } catch(reason) {\n      // failure\n    }\n    ```\n  \n    Errback Example\n  \n    ```js\n    findResult(function(result, err){\n      if (err) {\n        // failure\n      } else {\n        // success\n      }\n    });\n    ```\n  \n    Promise Example;\n  \n    ```javascript\n    findResult().then(function(result){\n      // success\n    }, function(reason){\n      // failure\n    });\n    ```\n  \n    Advanced Example\n    --------------\n  \n    Synchronous Example\n  \n    ```javascript\n    let author, books;\n  \n    try {\n      author = findAuthor();\n      books  = findBooksByAuthor(author);\n      // success\n    } catch(reason) {\n      // failure\n    }\n    ```\n  \n    Errback Example\n  \n    ```js\n  \n    function foundBooks(books) {\n  \n    }\n  \n    function failure(reason) {\n  \n    }\n  \n    findAuthor(function(author, err){\n      if (err) {\n        failure(err);\n        // failure\n      } else {\n        try {\n          findBoooksByAuthor(author, function(books, err) {\n            if (err) {\n              failure(err);\n            } else {\n              try {\n                foundBooks(books);\n              } catch(reason) {\n                failure(reason);\n              }\n            }\n          });\n        } catch(error) {\n          failure(err);\n        }\n        // success\n      }\n    });\n    ```\n  \n    Promise Example;\n  \n    ```javascript\n    findAuthor().\n      then(findBooksByAuthor).\n      then(function(books){\n        // found books\n    }).catch(function(reason){\n      // something went wrong\n    });\n    ```\n  \n    @method then\n    @param {Function} onFulfillment\n    @param {Function} onRejection\n    @param {String} [label] optional string for labeling the promise.\n    Useful for tooling.\n    @return {Promise}\n  */\n\n  Promise.prototype.then = then;\n\n  function makeObject(_, argumentNames) {\n    var obj = {};\n    var length = _.length;\n    var args = new Array(length);\n\n    for (var x = 0; x < length; x++) {\n      args[x] = _[x];\n    }\n\n    for (var i = 0; i < argumentNames.length; i++) {\n      var name = argumentNames[i];\n      obj[name] = args[i + 1];\n    }\n\n    return obj;\n  }\n\n  function arrayResult(_) {\n    var length = _.length;\n    var args = new Array(length - 1);\n\n    for (var i = 1; i < length; i++) {\n      args[i - 1] = _[i];\n    }\n\n    return args;\n  }\n\n  function wrapThenable(then, promise) {\n    return {\n      then(onFulFillment, onRejection) {\n        return then.call(promise, onFulFillment, onRejection);\n      }\n\n    };\n  }\n  /**\n    `denodeify` takes a 'node-style' function and returns a function that\n    will return an `Promise`. You can use `denodeify` in Node.js or the\n    browser when you'd prefer to use promises over using callbacks. For example,\n    `denodeify` transforms the following:\n  \n    ```javascript\n    let fs = require('fs');\n  \n    fs.readFile('myfile.txt', function(err, data){\n      if (err) return handleError(err);\n      handleData(data);\n    });\n    ```\n  \n    into:\n  \n    ```javascript\n    let fs = require('fs');\n    let readFile = denodeify(fs.readFile);\n  \n    readFile('myfile.txt').then(handleData, handleError);\n    ```\n  \n    If the node function has multiple success parameters, then `denodeify`\n    just returns the first one:\n  \n    ```javascript\n    let request = denodeify(require('request'));\n  \n    request('http://example.com').then(function(res) {\n      // ...\n    });\n    ```\n  \n    However, if you need all success parameters, setting `denodeify`'s\n    second parameter to `true` causes it to return all success parameters\n    as an array:\n  \n    ```javascript\n    let request = denodeify(require('request'), true);\n  \n    request('http://example.com').then(function(result) {\n      // result[0] -> res\n      // result[1] -> body\n    });\n    ```\n  \n    Or if you pass it an array with names it returns the parameters as a hash:\n  \n    ```javascript\n    let request = denodeify(require('request'), ['res', 'body']);\n  \n    request('http://example.com').then(function(result) {\n      // result.res\n      // result.body\n    });\n    ```\n  \n    Sometimes you need to retain the `this`:\n  \n    ```javascript\n    let app = require('express')();\n    let render = denodeify(app.render.bind(app));\n    ```\n  \n    The denodified function inherits from the original function. It works in all\n    environments, except IE 10 and below. Consequently all properties of the original\n    function are available to you. However, any properties you change on the\n    denodeified function won't be changed on the original function. Example:\n  \n    ```javascript\n    let request = denodeify(require('request')),\n        cookieJar = request.jar(); // <- Inheritance is used here\n  \n    request('http://example.com', {jar: cookieJar}).then(function(res) {\n      // cookieJar.cookies holds now the cookies returned by example.com\n    });\n    ```\n  \n    Using `denodeify` makes it easier to compose asynchronous operations instead\n    of using callbacks. For example, instead of:\n  \n    ```javascript\n    let fs = require('fs');\n  \n    fs.readFile('myfile.txt', function(err, data){\n      if (err) { ... } // Handle error\n      fs.writeFile('myfile2.txt', data, function(err){\n        if (err) { ... } // Handle error\n        console.log('done')\n      });\n    });\n    ```\n  \n    you can chain the operations together using `then` from the returned promise:\n  \n    ```javascript\n    let fs = require('fs');\n    let readFile = denodeify(fs.readFile);\n    let writeFile = denodeify(fs.writeFile);\n  \n    readFile('myfile.txt').then(function(data){\n      return writeFile('myfile2.txt', data);\n    }).then(function(){\n      console.log('done')\n    }).catch(function(error){\n      // Handle error\n    });\n    ```\n  \n    @method denodeify\n    @public\n    @static\n    @for rsvp\n    @param {Function} nodeFunc a 'node-style' function that takes a callback as\n    its last argument. The callback expects an error to be passed as its first\n    argument (if an error occurred, otherwise null), and the value from the\n    operation as its second argument ('function(err, value){ }').\n    @param {Boolean|Array} [options] An optional paramter that if set\n    to `true` causes the promise to fulfill with the callback's success arguments\n    as an array. This is useful if the node function has multiple success\n    paramters. If you set this paramter to an array with names, the promise will\n    fulfill with a hash with these names as keys and the success parameters as\n    values.\n    @return {Function} a function that wraps `nodeFunc` to return a `Promise`\n  */\n\n\n  function denodeify(nodeFunc, options) {\n    var fn = function () {\n      var l = arguments.length;\n      var args = new Array(l + 1);\n      var promiseInput = false;\n\n      for (var i = 0; i < l; ++i) {\n        var arg = arguments[i]; // TODO: this code really needs to be cleaned up\n\n        if (!promiseInput) {\n          if (arg !== null && typeof arg === 'object') {\n            if (arg.constructor === Promise) {\n              promiseInput = true;\n            } else {\n              try {\n                promiseInput = arg.then;\n              } catch (error) {\n                var p = new Promise(noop);\n                reject(p, error);\n                return p;\n              }\n            }\n          } else {\n            promiseInput = false;\n          }\n\n          if (promiseInput && promiseInput !== true) {\n            arg = wrapThenable(promiseInput, arg);\n          }\n        }\n\n        args[i] = arg;\n      }\n\n      var promise = new Promise(noop);\n\n      args[l] = function (err, val) {\n        if (err) {\n          reject(promise, err);\n        } else if (options === undefined) {\n          resolve$1(promise, val);\n        } else if (options === true) {\n          resolve$1(promise, arrayResult(arguments));\n        } else if (Array.isArray(options)) {\n          resolve$1(promise, makeObject(arguments, options));\n        } else {\n          resolve$1(promise, val);\n        }\n      };\n\n      if (promiseInput) {\n        return handlePromiseInput(promise, args, nodeFunc, this);\n      } else {\n        return handleValueInput(promise, args, nodeFunc, this);\n      }\n    };\n\n    fn.__proto__ = nodeFunc;\n    return fn;\n  }\n\n  function handleValueInput(promise, args, nodeFunc, self) {\n    try {\n      nodeFunc.apply(self, args);\n    } catch (error) {\n      reject(promise, error);\n    }\n\n    return promise;\n  }\n\n  function handlePromiseInput(promise, args, nodeFunc, self) {\n    return Promise.all(args).then(args => handleValueInput(promise, args, nodeFunc, self));\n  }\n  /**\n    This is a convenient alias for `Promise.all`.\n  \n    @method all\n    @public\n    @static\n    @for rsvp\n    @param {Array} array Array of promises.\n    @param {String} [label] An optional label. This is useful\n    for tooling.\n  */\n\n\n  function all$1(array, label) {\n    return Promise.all(array, label);\n  }\n  /**\n  @module rsvp\n  @public\n  **/\n\n\n  class AllSettled extends Enumerator {\n    constructor(Constructor, entries, label) {\n      super(Constructor, entries, false\n      /* don't abort on reject */\n      , label);\n    }\n\n  }\n\n  AllSettled.prototype._setResultAt = setSettledResult;\n  /**\n  `RSVP.allSettled` is similar to `RSVP.all`, but instead of implementing\n  a fail-fast method, it waits until all the promises have returned and\n  shows you all the results. This is useful if you want to handle multiple\n  promises' failure states together as a set.\n   Returns a promise that is fulfilled when all the given promises have been\n  settled. The return promise is fulfilled with an array of the states of\n  the promises passed into the `promises` array argument.\n   Each state object will either indicate fulfillment or rejection, and\n  provide the corresponding value or reason. The states will take one of\n  the following formats:\n   ```javascript\n  { state: 'fulfilled', value: value }\n    or\n  { state: 'rejected', reason: reason }\n  ```\n   Example:\n   ```javascript\n  let promise1 = RSVP.Promise.resolve(1);\n  let promise2 = RSVP.Promise.reject(new Error('2'));\n  let promise3 = RSVP.Promise.reject(new Error('3'));\n  let promises = [ promise1, promise2, promise3 ];\n   RSVP.allSettled(promises).then(function(array){\n    // array == [\n    //   { state: 'fulfilled', value: 1 },\n    //   { state: 'rejected', reason: Error },\n    //   { state: 'rejected', reason: Error }\n    // ]\n    // Note that for the second item, reason.message will be '2', and for the\n    // third item, reason.message will be '3'.\n  }, function(error) {\n    // Not run. (This block would only be called if allSettled had failed,\n    // for instance if passed an incorrect argument type.)\n  });\n  ```\n   @method allSettled\n  @public\n  @static\n  @for rsvp\n  @param {Array} entries\n  @param {String} [label] - optional string that describes the promise.\n  Useful for tooling.\n  @return {Promise} promise that is fulfilled with an array of the settled\n  states of the constituent promises.\n  */\n\n  function allSettled(entries, label) {\n    if (!Array.isArray(entries)) {\n      return Promise.reject(new TypeError(\"Promise.allSettled must be called with an array\"), label);\n    }\n\n    return new AllSettled(Promise, entries, label).promise;\n  }\n  /**\n    This is a convenient alias for `Promise.race`.\n  \n    @method race\n    @public\n    @static\n    @for rsvp\n    @param {Array} array Array of promises.\n    @param {String} [label] An optional label. This is useful\n    for tooling.\n   */\n\n\n  function race$1(array, label) {\n    return Promise.race(array, label);\n  }\n\n  class PromiseHash extends Enumerator {\n    constructor(Constructor, object, abortOnReject = true, label) {\n      super(Constructor, object, abortOnReject, label);\n    }\n\n    _init(Constructor, object) {\n      this._result = {};\n\n      this._enumerate(object);\n    }\n\n    _enumerate(input) {\n      var keys = Object.keys(input);\n      var length = keys.length;\n      var promise = this.promise;\n      this._remaining = length;\n      var key, val;\n\n      for (var i = 0; promise._state === PENDING && i < length; i++) {\n        key = keys[i];\n        val = input[key];\n\n        this._eachEntry(val, key, true);\n      }\n\n      this._checkFullfillment();\n    }\n\n  }\n  /**\n    `hash` is similar to `all`, but takes an object instead of an array\n    for its `promises` argument.\n  \n    Returns a promise that is fulfilled when all the given promises have been\n    fulfilled, or rejected if any of them become rejected. The returned promise\n    is fulfilled with a hash that has the same key names as the `promises` object\n    argument. If any of the values in the object are not promises, they will\n    simply be copied over to the fulfilled object.\n  \n    Example:\n  \n    ```javascript\n    let promises = {\n      myPromise: resolve(1),\n      yourPromise: resolve(2),\n      theirPromise: resolve(3),\n      notAPromise: 4\n    };\n  \n    hash(promises).then(function(hash){\n      // hash here is an object that looks like:\n      // {\n      //   myPromise: 1,\n      //   yourPromise: 2,\n      //   theirPromise: 3,\n      //   notAPromise: 4\n      // }\n    });\n    ```\n  \n    If any of the `promises` given to `hash` are rejected, the first promise\n    that is rejected will be given as the reason to the rejection handler.\n  \n    Example:\n  \n    ```javascript\n    let promises = {\n      myPromise: resolve(1),\n      rejectedPromise: reject(new Error('rejectedPromise')),\n      anotherRejectedPromise: reject(new Error('anotherRejectedPromise')),\n    };\n  \n    hash(promises).then(function(hash){\n      // Code here never runs because there are rejected promises!\n    }, function(reason) {\n      // reason.message === 'rejectedPromise'\n    });\n    ```\n  \n    An important note: `hash` is intended for plain JavaScript objects that\n    are just a set of keys and values. `hash` will NOT preserve prototype\n    chains.\n  \n    Example:\n  \n    ```javascript\n    import { hash, resolve } from 'rsvp';\n    function MyConstructor(){\n      this.example = resolve('Example');\n    }\n  \n    MyConstructor.prototype = {\n      protoProperty: resolve('Proto Property')\n    };\n  \n    let myObject = new MyConstructor();\n  \n    hash(myObject).then(function(hash){\n      // protoProperty will not be present, instead you will just have an\n      // object that looks like:\n      // {\n      //   example: 'Example'\n      // }\n      //\n      // hash.hasOwnProperty('protoProperty'); // false\n      // 'undefined' === typeof hash.protoProperty\n    });\n    ```\n  \n    @method hash\n    @public\n    @static\n    @for rsvp\n    @param {Object} object\n    @param {String} [label] optional string that describes the promise.\n    Useful for tooling.\n    @return {Promise} promise that is fulfilled when all properties of `promises`\n    have been fulfilled, or rejected if any of them become rejected.\n  */\n\n\n  function hash(object, label) {\n    return Promise.resolve(object, label).then(function (object) {\n      if (object === null || typeof object !== 'object') {\n        throw new TypeError(\"Promise.hash must be called with an object\");\n      }\n\n      return new PromiseHash(Promise, object, label).promise;\n    });\n  }\n\n  class HashSettled extends PromiseHash {\n    constructor(Constructor, object, label) {\n      super(Constructor, object, false, label);\n    }\n\n  }\n\n  HashSettled.prototype._setResultAt = setSettledResult;\n  /**\n    `hashSettled` is similar to `allSettled`, but takes an object\n    instead of an array for its `promises` argument.\n  \n    Unlike `all` or `hash`, which implement a fail-fast method,\n    but like `allSettled`, `hashSettled` waits until all the\n    constituent promises have returned and then shows you all the results\n    with their states and values/reasons. This is useful if you want to\n    handle multiple promises' failure states together as a set.\n  \n    Returns a promise that is fulfilled when all the given promises have been\n    settled, or rejected if the passed parameters are invalid.\n  \n    The returned promise is fulfilled with a hash that has the same key names as\n    the `promises` object argument. If any of the values in the object are not\n    promises, they will be copied over to the fulfilled object and marked with state\n    'fulfilled'.\n  \n    Example:\n  \n    ```javascript\n    import { hashSettled, resolve } from 'rsvp';\n  \n    let promises = {\n      myPromise: resolve(1),\n      yourPromise: resolve(2),\n      theirPromise: resolve(3),\n      notAPromise: 4\n    };\n  \n    hashSettled(promises).then(function(hash){\n      // hash here is an object that looks like:\n      // {\n      //   myPromise: { state: 'fulfilled', value: 1 },\n      //   yourPromise: { state: 'fulfilled', value: 2 },\n      //   theirPromise: { state: 'fulfilled', value: 3 },\n      //   notAPromise: { state: 'fulfilled', value: 4 }\n      // }\n    });\n    ```\n  \n    If any of the `promises` given to `hash` are rejected, the state will\n    be set to 'rejected' and the reason for rejection provided.\n  \n    Example:\n  \n    ```javascript\n    import { hashSettled, reject, resolve } from 'rsvp';\n  \n    let promises = {\n      myPromise: resolve(1),\n      rejectedPromise: reject(new Error('rejection')),\n      anotherRejectedPromise: reject(new Error('more rejection')),\n    };\n  \n    hashSettled(promises).then(function(hash){\n      // hash here is an object that looks like:\n      // {\n      //   myPromise:              { state: 'fulfilled', value: 1 },\n      //   rejectedPromise:        { state: 'rejected', reason: Error },\n      //   anotherRejectedPromise: { state: 'rejected', reason: Error },\n      // }\n      // Note that for rejectedPromise, reason.message == 'rejection',\n      // and for anotherRejectedPromise, reason.message == 'more rejection'.\n    });\n    ```\n  \n    An important note: `hashSettled` is intended for plain JavaScript objects that\n    are just a set of keys and values. `hashSettled` will NOT preserve prototype\n    chains.\n  \n    Example:\n  \n    ```javascript\n    import Promise, { hashSettled, resolve } from 'rsvp';\n  \n    function MyConstructor(){\n      this.example = resolve('Example');\n    }\n  \n    MyConstructor.prototype = {\n      protoProperty: Promise.resolve('Proto Property')\n    };\n  \n    let myObject = new MyConstructor();\n  \n    hashSettled(myObject).then(function(hash){\n      // protoProperty will not be present, instead you will just have an\n      // object that looks like:\n      // {\n      //   example: { state: 'fulfilled', value: 'Example' }\n      // }\n      //\n      // hash.hasOwnProperty('protoProperty'); // false\n      // 'undefined' === typeof hash.protoProperty\n    });\n    ```\n  \n    @method hashSettled\n    @public\n    @for rsvp\n    @param {Object} object\n    @param {String} [label] optional string that describes the promise.\n    Useful for tooling.\n    @return {Promise} promise that is fulfilled when when all properties of `promises`\n    have been settled.\n    @static\n  */\n\n  function hashSettled(object, label) {\n    return Promise.resolve(object, label).then(function (object) {\n      if (object === null || typeof object !== 'object') {\n        throw new TypeError(\"hashSettled must be called with an object\");\n      }\n\n      return new HashSettled(Promise, object, false, label).promise;\n    });\n  }\n  /**\n    `rethrow` will rethrow an error on the next turn of the JavaScript event\n    loop in order to aid debugging.\n  \n    Promises A+ specifies that any exceptions that occur with a promise must be\n    caught by the promises implementation and bubbled to the last handler. For\n    this reason, it is recommended that you always specify a second rejection\n    handler function to `then`. However, `rethrow` will throw the exception\n    outside of the promise, so it bubbles up to your console if in the browser,\n    or domain/cause uncaught exception in Node. `rethrow` will also throw the\n    error again so the error can be handled by the promise per the spec.\n  \n    ```javascript\n    import { rethrow } from 'rsvp';\n  \n    function throws(){\n      throw new Error('Whoops!');\n    }\n  \n    let promise = new Promise(function(resolve, reject){\n      throws();\n    });\n  \n    promise.catch(rethrow).then(function(){\n      // Code here doesn't run because the promise became rejected due to an\n      // error!\n    }, function (err){\n      // handle the error here\n    });\n    ```\n  \n    The 'Whoops' error will be thrown on the next turn of the event loop\n    and you can watch for it in your console. You can also handle it using a\n    rejection handler given to `.then` or `.catch` on the returned promise.\n  \n    @method rethrow\n    @public\n    @static\n    @for rsvp\n    @param {Error} reason reason the promise became rejected.\n    @throws Error\n    @static\n  */\n\n\n  function rethrow(reason) {\n    setTimeout(() => {\n      throw reason;\n    });\n    throw reason;\n  }\n  /**\n    `defer` returns an object similar to jQuery's `$.Deferred`.\n    `defer` should be used when porting over code reliant on `$.Deferred`'s\n    interface. New code should use the `Promise` constructor instead.\n  \n    The object returned from `defer` is a plain object with three properties:\n  \n    * promise - an `Promise`.\n    * reject - a function that causes the `promise` property on this object to\n      become rejected\n    * resolve - a function that causes the `promise` property on this object to\n      become fulfilled.\n  \n    Example:\n  \n     ```javascript\n     let deferred = defer();\n  \n     deferred.resolve(\"Success!\");\n  \n     deferred.promise.then(function(value){\n       // value here is \"Success!\"\n     });\n     ```\n  \n    @method defer\n    @public\n    @static\n    @for rsvp\n    @param {String} [label] optional string for labeling the promise.\n    Useful for tooling.\n    @return {Object}\n   */\n\n\n  function defer(label) {\n    var deferred = {\n      resolve: undefined,\n      reject: undefined\n    };\n    deferred.promise = new Promise((resolve, reject) => {\n      deferred.resolve = resolve;\n      deferred.reject = reject;\n    }, label);\n    return deferred;\n  }\n\n  class MapEnumerator extends Enumerator {\n    constructor(Constructor, entries, mapFn, label) {\n      super(Constructor, entries, true, label, mapFn);\n    }\n\n    _init(Constructor, input, bool, label, mapFn) {\n      var len = input.length || 0;\n      this.length = len;\n      this._remaining = len;\n      this._result = new Array(len);\n      this._mapFn = mapFn;\n\n      this._enumerate(input);\n    }\n\n    _setResultAt(state, i, value, firstPass) {\n      if (firstPass) {\n        try {\n          this._eachEntry(this._mapFn(value, i), i, false);\n        } catch (error) {\n          this._settledAt(REJECTED, i, error, false);\n        }\n      } else {\n        this._remaining--;\n        this._result[i] = value;\n      }\n    }\n\n  }\n  /**\n   `map` is similar to JavaScript's native `map` method. `mapFn` is eagerly called\n    meaning that as soon as any promise resolves its value will be passed to `mapFn`.\n    `map` returns a promise that will become fulfilled with the result of running\n    `mapFn` on the values the promises become fulfilled with.\n  \n    For example:\n  \n    ```javascript\n    import { map, resolve } from 'rsvp';\n  \n    let promise1 = resolve(1);\n    let promise2 = resolve(2);\n    let promise3 = resolve(3);\n    let promises = [ promise1, promise2, promise3 ];\n  \n    let mapFn = function(item){\n      return item + 1;\n    };\n  \n    map(promises, mapFn).then(function(result){\n      // result is [ 2, 3, 4 ]\n    });\n    ```\n  \n    If any of the `promises` given to `map` are rejected, the first promise\n    that is rejected will be given as an argument to the returned promise's\n    rejection handler. For example:\n  \n    ```javascript\n    import { map, reject, resolve } from 'rsvp';\n  \n    let promise1 = resolve(1);\n    let promise2 = reject(new Error('2'));\n    let promise3 = reject(new Error('3'));\n    let promises = [ promise1, promise2, promise3 ];\n  \n    let mapFn = function(item){\n      return item + 1;\n    };\n  \n    map(promises, mapFn).then(function(array){\n      // Code here never runs because there are rejected promises!\n    }, function(reason) {\n      // reason.message === '2'\n    });\n    ```\n  \n    `map` will also wait if a promise is returned from `mapFn`. For example,\n    say you want to get all comments from a set of blog posts, but you need\n    the blog posts first because they contain a url to those comments.\n  \n    ```javscript\n    import { map } from 'rsvp';\n  \n    let mapFn = function(blogPost){\n      // getComments does some ajax and returns an Promise that is fulfilled\n      // with some comments data\n      return getComments(blogPost.comments_url);\n    };\n  \n    // getBlogPosts does some ajax and returns an Promise that is fulfilled\n    // with some blog post data\n    map(getBlogPosts(), mapFn).then(function(comments){\n      // comments is the result of asking the server for the comments\n      // of all blog posts returned from getBlogPosts()\n    });\n    ```\n  \n    @method map\n    @public\n    @static\n    @for rsvp\n    @param {Array} promises\n    @param {Function} mapFn function to be called on each fulfilled promise.\n    @param {String} [label] optional string for labeling the promise.\n    Useful for tooling.\n    @return {Promise} promise that is fulfilled with the result of calling\n    `mapFn` on each fulfilled promise or value when they become fulfilled.\n     The promise will be rejected if any of the given `promises` become rejected.\n  */\n\n\n  function map(promises, mapFn, label) {\n    if (typeof mapFn !== 'function') {\n      return Promise.reject(new TypeError(\"map expects a function as a second argument\"), label);\n    }\n\n    return Promise.resolve(promises, label).then(function (promises) {\n      if (!Array.isArray(promises)) {\n        throw new TypeError(\"map must be called with an array\");\n      }\n\n      return new MapEnumerator(Promise, promises, mapFn, label).promise;\n    });\n  }\n  /**\n    This is a convenient alias for `Promise.resolve`.\n  \n    @method resolve\n    @public\n    @static\n    @for rsvp\n    @param {*} value value that the returned promise will be resolved with\n    @param {String} [label] optional string for identifying the returned promise.\n    Useful for tooling.\n    @return {Promise} a promise that will become fulfilled with the given\n    `value`\n  */\n\n\n  function resolve$2(value, label) {\n    return Promise.resolve(value, label);\n  }\n  /**\n    This is a convenient alias for `Promise.reject`.\n  \n    @method reject\n    @public\n    @static\n    @for rsvp\n    @param {*} reason value that the returned promise will be rejected with.\n    @param {String} [label] optional string for identifying the returned promise.\n    Useful for tooling.\n    @return {Promise} a promise rejected with the given `reason`.\n  */\n\n\n  function reject$2(reason, label) {\n    return Promise.reject(reason, label);\n  }\n\n  var EMPTY_OBJECT = {};\n\n  class FilterEnumerator extends MapEnumerator {\n    _checkFullfillment() {\n      if (this._remaining === 0 && this._result !== null) {\n        var result = this._result.filter(val => val !== EMPTY_OBJECT);\n\n        fulfill(this.promise, result);\n        this._result = null;\n      }\n    }\n\n    _setResultAt(state, i, value, firstPass) {\n      if (firstPass) {\n        this._result[i] = value;\n        var val,\n            succeeded = true;\n\n        try {\n          val = this._mapFn(value, i);\n        } catch (error) {\n          succeeded = false;\n\n          this._settledAt(REJECTED, i, error, false);\n        }\n\n        if (succeeded) {\n          this._eachEntry(val, i, false);\n        }\n      } else {\n        this._remaining--;\n\n        if (!value) {\n          this._result[i] = EMPTY_OBJECT;\n        }\n      }\n    }\n\n  }\n  /**\n   `filter` is similar to JavaScript's native `filter` method.\n   `filterFn` is eagerly called meaning that as soon as any promise\n    resolves its value will be passed to `filterFn`. `filter` returns\n    a promise that will become fulfilled with the result of running\n    `filterFn` on the values the promises become fulfilled with.\n  \n    For example:\n  \n    ```javascript\n    import { filter, resolve } from 'rsvp';\n  \n    let promise1 = resolve(1);\n    let promise2 = resolve(2);\n    let promise3 = resolve(3);\n  \n    let promises = [promise1, promise2, promise3];\n  \n    let filterFn = function(item){\n      return item > 1;\n    };\n  \n    filter(promises, filterFn).then(function(result){\n      // result is [ 2, 3 ]\n    });\n    ```\n  \n    If any of the `promises` given to `filter` are rejected, the first promise\n    that is rejected will be given as an argument to the returned promise's\n    rejection handler. For example:\n  \n    ```javascript\n    import { filter, reject, resolve } from 'rsvp';\n  \n    let promise1 = resolve(1);\n    let promise2 = reject(new Error('2'));\n    let promise3 = reject(new Error('3'));\n    let promises = [ promise1, promise2, promise3 ];\n  \n    let filterFn = function(item){\n      return item > 1;\n    };\n  \n    filter(promises, filterFn).then(function(array){\n      // Code here never runs because there are rejected promises!\n    }, function(reason) {\n      // reason.message === '2'\n    });\n    ```\n  \n    `filter` will also wait for any promises returned from `filterFn`.\n    For instance, you may want to fetch a list of users then return a subset\n    of those users based on some asynchronous operation:\n  \n    ```javascript\n    import { filter, resolve } from 'rsvp';\n  \n    let alice = { name: 'alice' };\n    let bob   = { name: 'bob' };\n    let users = [ alice, bob ];\n  \n    let promises = users.map(function(user){\n      return resolve(user);\n    });\n  \n    let filterFn = function(user){\n      // Here, Alice has permissions to create a blog post, but Bob does not.\n      return getPrivilegesForUser(user).then(function(privs){\n        return privs.can_create_blog_post === true;\n      });\n    };\n    filter(promises, filterFn).then(function(users){\n      // true, because the server told us only Alice can create a blog post.\n      users.length === 1;\n      // false, because Alice is the only user present in `users`\n      users[0] === bob;\n    });\n    ```\n  \n    @method filter\n    @public\n    @static\n    @for rsvp\n    @param {Array} promises\n    @param {Function} filterFn - function to be called on each resolved value to\n    filter the final results.\n    @param {String} [label] optional string describing the promise. Useful for\n    tooling.\n    @return {Promise}\n  */\n\n\n  function filter(promises, filterFn, label) {\n    if (typeof filterFn !== 'function') {\n      return Promise.reject(new TypeError(\"filter expects function as a second argument\"), label);\n    }\n\n    return Promise.resolve(promises, label).then(function (promises) {\n      if (!Array.isArray(promises)) {\n        throw new TypeError(\"filter must be called with an array\");\n      }\n\n      return new FilterEnumerator(Promise, promises, filterFn, label).promise;\n    });\n  }\n\n  var len = 0;\n  var vertxNext;\n\n  function asap(callback, arg) {\n    queue$1[len] = callback;\n    queue$1[len + 1] = arg;\n    len += 2;\n\n    if (len === 2) {\n      // If len is 1, that means that we need to schedule an async flush.\n      // If additional callbacks are queued before the queue is flushed, they\n      // will be processed by this flush that we are scheduling.\n      scheduleFlush$1();\n    }\n  }\n\n  var browserWindow = typeof window !== 'undefined' ? window : undefined;\n  var browserGlobal = browserWindow || {};\n  var BrowserMutationObserver = browserGlobal.MutationObserver || browserGlobal.WebKitMutationObserver;\n  var isNode = typeof self === 'undefined' && typeof process !== 'undefined' && {}.toString.call(process) === '[object process]'; // test for web worker but not in IE10\n\n  var isWorker = typeof Uint8ClampedArray !== 'undefined' && typeof importScripts !== 'undefined' && typeof MessageChannel !== 'undefined'; // node\n\n  function useNextTick() {\n    var nextTick = process.nextTick; // node version 0.10.x displays a deprecation warning when nextTick is used recursively\n    // setImmediate should be used instead instead\n\n    var version = process.versions.node.match(/^(?:(\\d+)\\.)?(?:(\\d+)\\.)?(\\*|\\d+)$/);\n\n    if (Array.isArray(version) && version[1] === '0' && version[2] === '10') {\n      nextTick = setImmediate;\n    }\n\n    return () => nextTick(flush);\n  } // vertx\n\n\n  function useVertxTimer() {\n    if (typeof vertxNext !== 'undefined') {\n      return function () {\n        vertxNext(flush);\n      };\n    }\n\n    return useSetTimeout();\n  }\n\n  function useMutationObserver() {\n    var iterations = 0;\n    var observer = new BrowserMutationObserver(flush);\n    var node = document.createTextNode('');\n    observer.observe(node, {\n      characterData: true\n    });\n    return () => node.data = iterations = ++iterations % 2;\n  } // web worker\n\n\n  function useMessageChannel() {\n    var channel = new MessageChannel();\n    channel.port1.onmessage = flush;\n    return () => channel.port2.postMessage(0);\n  }\n\n  function useSetTimeout() {\n    return () => setTimeout(flush, 1);\n  }\n\n  var queue$1 = new Array(1000);\n\n  function flush() {\n    for (var i = 0; i < len; i += 2) {\n      var callback = queue$1[i];\n      var arg = queue$1[i + 1];\n      callback(arg);\n      queue$1[i] = undefined;\n      queue$1[i + 1] = undefined;\n    }\n\n    len = 0;\n  }\n\n  function attemptVertex() {\n    try {\n      var vertx = Function('return this')().require('vertx');\n\n      vertxNext = vertx.runOnLoop || vertx.runOnContext;\n      return useVertxTimer();\n    } catch (e) {\n      return useSetTimeout();\n    }\n  }\n\n  var scheduleFlush$1; // Decide what async method to use to triggering processing of queued callbacks:\n\n  if (isNode) {\n    scheduleFlush$1 = useNextTick();\n  } else if (BrowserMutationObserver) {\n    scheduleFlush$1 = useMutationObserver();\n  } else if (isWorker) {\n    scheduleFlush$1 = useMessageChannel();\n  } else if (browserWindow === undefined && typeof require === 'function') {\n    scheduleFlush$1 = attemptVertex();\n  } else {\n    scheduleFlush$1 = useSetTimeout();\n  } // defaults\n\n\n  config.async = asap;\n\n  config.after = cb => setTimeout(cb, 0);\n\n  var cast = resolve$2;\n  _exports.cast = cast;\n\n  var async = (callback, arg) => config.async(callback, arg);\n\n  _exports.async = async;\n\n  function on() {\n    config.on(...arguments);\n  }\n\n  function off() {\n    config.off(...arguments);\n  } // Set up instrumentation through `window.__PROMISE_INTRUMENTATION__`\n\n\n  if (typeof window !== 'undefined' && typeof window['__PROMISE_INSTRUMENTATION__'] === 'object') {\n    var callbacks = window['__PROMISE_INSTRUMENTATION__'];\n    configure('instrument', true);\n\n    for (var eventName in callbacks) {\n      if (callbacks.hasOwnProperty(eventName)) {\n        on(eventName, callbacks[eventName]);\n      }\n    }\n  } // the default export here is for backwards compat:\n  //   https://github.com/tildeio/rsvp.js/issues/434\n\n\n  var rsvp = {\n    asap,\n    cast,\n    Promise,\n    EventTarget,\n    all: all$1,\n    allSettled,\n    race: race$1,\n    hash,\n    hashSettled,\n    rethrow,\n    defer,\n    denodeify,\n    configure,\n    on,\n    off,\n    resolve: resolve$2,\n    reject: reject$2,\n    map,\n    async,\n    filter\n  };\n  var _default = rsvp;\n  _exports.default = _default;\n});","(function() {\n  if (typeof FastBoot === 'undefined') {\n    var current = document.getElementById('fastboot-body-start');\n\n    if (\n      current &&\n      typeof Ember.ViewUtils.isSerializationFirstNode === 'function' &&\n      Ember.ViewUtils.isSerializationFirstNode(current.nextSibling)\n    ) {\n      Ember.ApplicationInstance.reopen({\n        _bootSync: function(options) {\n          if (options === undefined) {\n            options = {\n              _renderMode: 'rehydrate'\n            };\n          }\n\n          return this._super(options);\n        }\n      });\n\n      // Prevent clearRender  by removing `fastboot-body-start` which is already\n      // guarded for\n      current.parentNode.removeChild(current);\n      var end = document.getElementById('fastboot-body-end');\n\n      if (end) {\n        end.parentNode.removeChild(end);\n      }\n    }\n  }\n})();\n","define('@ember-data/adapter/-private', ['exports', 'require', 'ember-inflector'], function (exports, require, emberInflector) { 'use strict';\n\n  var require__default = 'default' in require ? require['default'] : require;\n\n  var newline = /\\r?\\n/;\n  function parseResponseHeaders(headersString) {\n    var headers = Object.create(null);\n\n    if (!headersString) {\n      return headers;\n    }\n\n    var headerPairs = headersString.split(newline);\n\n    for (var i = 0; i < headerPairs.length; i++) {\n      var header = headerPairs[i];\n      var j = 0;\n      var foundSep = false;\n\n      for (; j < header.length; j++) {\n        if (header.charCodeAt(j) === 58\n        /* ':' */\n        ) {\n            foundSep = true;\n            break;\n          }\n      }\n\n      if (foundSep === false) {\n        continue;\n      }\n\n      var field = header.substring(0, j).trim();\n      var value = header.substring(j + 1, header.length).trim();\n\n      if (value) {\n        var lowerCasedField = field.toLowerCase();\n        headers[lowerCasedField] = value;\n        headers[field] = value;\n      }\n    }\n\n    return headers;\n  }\n\n  function continueOnReject(promise) {\n    return Ember.RSVP.resolve(promise).catch(e => e);\n  }\n\n  /*\n   * Function that always attempts to parse the response as json, and if an error is thrown,\n   * returns `undefined` if the response is successful and has a status code of 204 (No Content),\n   * or 205 (Reset Content) or if the request method was 'HEAD', and the plain payload otherwise.\n   */\n  function _determineContent(response, requestData, payload) {\n    var ret = payload;\n    var error;\n\n    if (!response.ok) {\n      return payload;\n    }\n\n    try {\n      ret = JSON.parse(payload);\n    } catch (e) {\n      if (!(e instanceof SyntaxError)) {\n        return e;\n      }\n\n      e.payload = payload;\n      error = e;\n    }\n\n    var status = response.status;\n\n    if (response.ok && (status === 204 || status === 205 || requestData.method === 'HEAD')) {\n      return;\n    }\n\n    {\n      var message = `The server returned an empty string for ${requestData.method} ${requestData.url}, which cannot be parsed into a valid JSON. Return either null or {}.`;\n\n      if (payload === '') {\n        ( Ember.warn(message, true, {\n          id: 'ds.adapter.returned-empty-string-as-JSON'\n        }));\n      }\n    }\n\n    if (error) {\n      {\n        // eslint-disable-next-line no-console\n        console.warn('This response was unable to be parsed as json.', payload);\n      }\n\n      return error;\n    }\n\n    return ret;\n  }\n\n  function determineBodyPromise(response, requestData) {\n    // response.text() may resolve or reject\n    // it is a native promise, may not have finally\n    return continueOnReject(response.text()).then(payload => _determineContent(response, requestData, payload));\n  }\n\n  var RBRACKET = /\\[\\]$/;\n\n  function isPlainObject(obj) {\n    return Object.prototype.toString.call(obj) === '[object Object]';\n  }\n  /*\n   * Helper function that turns the data/body of a request into a query param string.\n   * This is directly copied from jQuery.param.\n   */\n\n\n  function serializeQueryParams(queryParamsObject) {\n    var s = [];\n\n    function buildParams(prefix, obj) {\n      var i, len, key;\n\n      if (prefix) {\n        if (Array.isArray(obj)) {\n          for (i = 0, len = obj.length; i < len; i++) {\n            if (RBRACKET.test(prefix)) {\n              add(s, prefix, obj[i]);\n            } else {\n              buildParams(prefix + '[' + (typeof obj[i] === 'object' ? i : '') + ']', obj[i]);\n            }\n          }\n        } else if (isPlainObject(obj)) {\n          for (key in obj) {\n            buildParams(prefix + '[' + key + ']', obj[key]);\n          }\n        } else {\n          add(s, prefix, obj);\n        }\n      } else if (Array.isArray(obj)) {\n        for (i = 0, len = obj.length; i < len; i++) {\n          add(s, obj[i].name, obj[i].value);\n        }\n      } else {\n        for (key in obj) {\n          buildParams(key, obj[key]);\n        }\n      }\n\n      return s;\n    }\n\n    return buildParams('', queryParamsObject).join('&').replace(/%20/g, '+');\n  }\n  /*\n   * Part of the `serializeQueryParams` helper function.\n   */\n\n  function add(s, k, v) {\n    // Strip out keys with undefined value and replace null values with\n    // empty strings (mimics jQuery.ajax)\n    if (v === undefined) {\n      return;\n    } else if (v === null) {\n      v = '';\n    }\n\n    v = typeof v === 'function' ? v() : v;\n    s[s.length] = `${encodeURIComponent(k)}=${encodeURIComponent(v)}`;\n  }\n\n  var _fetch = null;\n  function getFetchFunction() {\n    if (_fetch !== null) {\n      return _fetch();\n    }\n\n    if (require.has('fetch')) {\n      // use `fetch` module by default, this is commonly provided by ember-fetch\n      var fetchFn = require__default('fetch').default;\n\n      _fetch = () => fetchFn;\n    } else if (typeof fetch === 'function') {\n      // fallback to using global fetch\n      _fetch = () => fetch;\n    } else {\n      throw new Error('cannot find the `fetch` module or the `fetch` global. Did you mean to install the `ember-fetch` addon?');\n    }\n\n    return _fetch();\n  }\n\n  /**\n    @module @ember-data/adapter\n  */\n\n  /**\n    ## Using BuildURLMixin\n\n    To use URL building, include the mixin when extending an adapter, and call `buildURL` where needed.\n    The default behaviour is designed for RESTAdapter.\n\n    ### Example\n\n    ```javascript\n    import Adapter, { BuildURLMixin } from '@ember-data/adapter';\n\n    export default Adapter.extend(BuildURLMixin, {\n      findRecord: function(store, type, id, snapshot) {\n        var url = this.buildURL(type.modelName, id, snapshot, 'findRecord');\n        return this.ajax(url, 'GET');\n      }\n    });\n    ```\n\n    ### Attributes\n\n    The `host` and `namespace` attributes will be used if defined, and are optional.\n\n    @class BuildURLMixin\n  */\n\n  var buildUrlMixin = Ember.Mixin.create({\n    /**\n      Builds a URL for a given type and optional ID.\n       By default, it pluralizes the type's name (for example, 'post'\n      becomes 'posts' and 'person' becomes 'people'). To override the\n      pluralization see [pathForType](BuildUrlMixin/methods/pathForType?anchor=pathForType).\n       If an ID is specified, it adds the ID to the path generated\n      for the type, separated by a `/`.\n       When called by `RESTAdapter.findMany()` the `id` and `snapshot` parameters\n      will be arrays of ids and snapshots.\n       @method buildURL\n      @param {String} modelName\n      @param {(String|Array|Object)} id single id or array of ids or query\n      @param {(Snapshot|SnapshotRecordArray)} snapshot single snapshot or array of snapshots\n      @param {String} requestType\n      @param {Object} query object of query parameters to send for query requests.\n      @return {String} url\n    */\n    buildURL(modelName, id, snapshot, requestType, query) {\n      switch (requestType) {\n        case 'findRecord':\n          return this.urlForFindRecord(id, modelName, snapshot);\n\n        case 'findAll':\n          return this.urlForFindAll(modelName, snapshot);\n\n        case 'query':\n          return this.urlForQuery(query, modelName);\n\n        case 'queryRecord':\n          return this.urlForQueryRecord(query, modelName);\n\n        case 'findMany':\n          return this.urlForFindMany(id, modelName, snapshot);\n\n        case 'findHasMany':\n          return this.urlForFindHasMany(id, modelName, snapshot);\n\n        case 'findBelongsTo':\n          return this.urlForFindBelongsTo(id, modelName, snapshot);\n\n        case 'createRecord':\n          return this.urlForCreateRecord(modelName, snapshot);\n\n        case 'updateRecord':\n          return this.urlForUpdateRecord(id, modelName, snapshot);\n\n        case 'deleteRecord':\n          return this.urlForDeleteRecord(id, modelName, snapshot);\n\n        default:\n          return this._buildURL(modelName, id);\n      }\n    },\n\n    /**\n      @method _buildURL\n      @private\n      @param {String} modelName\n      @param {String} id\n      @return {String} url\n    */\n    _buildURL(modelName, id) {\n      var path;\n      var url = [];\n      var host = Ember.get(this, 'host');\n      var prefix = this.urlPrefix();\n\n      if (modelName) {\n        path = this.pathForType(modelName);\n\n        if (path) {\n          url.push(path);\n        }\n      }\n\n      if (id) {\n        url.push(encodeURIComponent(id));\n      }\n\n      if (prefix) {\n        url.unshift(prefix);\n      }\n\n      url = url.join('/');\n\n      if (!host && url && url.charAt(0) !== '/') {\n        url = '/' + url;\n      }\n\n      return url;\n    },\n\n    /**\n     Builds a URL for a `store.findRecord(type, id)` call.\n      Example:\n      ```app/adapters/user.js\n     import JSONAPIAdapter from '@ember-data/adapter/json-api';\n      export default JSONAPIAdapter.extend({\n       urlForFindRecord(id, modelName, snapshot) {\n         let baseUrl = this.buildURL(modelName, id, snapshot);\n         return `${baseUrl}/users/${snapshot.adapterOptions.user_id}/playlists/${id}`;\n       }\n     });\n     ```\n      @method urlForFindRecord\n     @param {String} id\n     @param {String} modelName\n     @param {Snapshot} snapshot\n     @return {String} url\n      */\n    urlForFindRecord(id, modelName, snapshot) {\n      return this._buildURL(modelName, id);\n    },\n\n    /**\n     Builds a URL for a `store.findAll(type)` call.\n      Example:\n      ```app/adapters/comment.js\n     import JSONAPIAdapter from '@ember-data/adapter/json-api';\n      export default JSONAPIAdapter.extend({\n       urlForFindAll(modelName, snapshot) {\n         let baseUrl = this.buildURL(modelName);\n         return `${baseUrl}/data/comments.json`;\n       }\n     });\n     ```\n      @method urlForFindAll\n     @param {String} modelName\n     @param {SnapshotRecordArray} snapshot\n     @return {String} url\n     */\n    urlForFindAll(modelName, snapshot) {\n      return this._buildURL(modelName);\n    },\n\n    /**\n     Builds a URL for a `store.query(type, query)` call.\n      Example:\n      ```app/adapters/application.js\n     import RESTAdapter from '@ember-data/adapter/rest';\n      export default RESTAdapter.extend({\n       host: 'https://api.github.com',\n       urlForQuery (query, modelName) {\n         switch(modelName) {\n           case 'repo':\n             return `https://api.github.com/orgs/${query.orgId}/repos`;\n           default:\n             return this._super(...arguments);\n         }\n       }\n     });\n     ```\n      @method urlForQuery\n     @param {Object} query\n     @param {String} modelName\n     @return {String} url\n     */\n    urlForQuery(query, modelName) {\n      return this._buildURL(modelName);\n    },\n\n    /**\n     Builds a URL for a `store.queryRecord(type, query)` call.\n      Example:\n      ```app/adapters/application.js\n     import RESTAdapter from '@ember-data/adapter/rest';\n      export default RESTAdapter.extend({\n       urlForQueryRecord({ slug }, modelName) {\n         let baseUrl = this.buildURL();\n         return `${baseUrl}/${encodeURIComponent(slug)}`;\n       }\n     });\n     ```\n      @method urlForQueryRecord\n     @param {Object} query\n     @param {String} modelName\n     @return {String} url\n     */\n    urlForQueryRecord(query, modelName) {\n      return this._buildURL(modelName);\n    },\n\n    /**\n     Builds a URL for coalescing multiple `store.findRecord(type, id)`\n     records into 1 request when the adapter's `coalesceFindRequests`\n     property is `true`.\n      Example:\n      ```app/adapters/application.js\n     import RESTAdapter from '@ember-data/adapter/rest';\n      export default RESTAdapter.extend({\n       urlForFindMany(ids, modelName) {\n         let baseUrl = this.buildURL();\n         return `${baseUrl}/coalesce`;\n       }\n     });\n     ```\n      @method urlForFindMany\n     @param {Array} ids\n     @param {String} modelName\n     @param {Array} snapshots\n     @return {String} url\n     */\n    urlForFindMany(ids, modelName, snapshots) {\n      return this._buildURL(modelName);\n    },\n\n    /**\n     Builds a URL for fetching an async `hasMany` relationship when a URL\n     is not provided by the server.\n      Example:\n      ```app/adapters/application.js\n     import JSONAPIAdapter from '@ember-data/adapter/json-api';\n      export default JSONAPIAdapter.extend({\n       urlForFindHasMany(id, modelName, snapshot) {\n         let baseUrl = this.buildURL(modelName, id);\n         return `${baseUrl}/relationships`;\n       }\n     });\n     ```\n      @method urlForFindHasMany\n     @param {String} id\n     @param {String} modelName\n     @param {Snapshot} snapshot\n     @return {String} url\n     */\n    urlForFindHasMany(id, modelName, snapshot) {\n      return this._buildURL(modelName, id);\n    },\n\n    /**\n     Builds a URL for fetching an async `belongsTo` relationship when a url\n     is not provided by the server.\n      Example:\n      ```app/adapters/application.js\n     import JSONAPIAdapter from '@ember-data/adapter/json-api';\n      export default JSONAPIAdapter.extend({\n       urlForFindBelongsTo(id, modelName, snapshot) {\n         let baseUrl = this.buildURL(modelName, id);\n         return `${baseUrl}/relationships`;\n       }\n     });\n     ```\n      @method urlForFindBelongsTo\n     @param {String} id\n     @param {String} modelName\n     @param {Snapshot} snapshot\n     @return {String} url\n     */\n    urlForFindBelongsTo(id, modelName, snapshot) {\n      return this._buildURL(modelName, id);\n    },\n\n    /**\n     Builds a URL for a `record.save()` call when the record was created\n     locally using `store.createRecord()`.\n      Example:\n      ```app/adapters/application.js\n     import RESTAdapter from '@ember-data/adapter/rest';\n      export default RESTAdapter.extend({\n       urlForCreateRecord(modelName, snapshot) {\n         return this._super(...arguments) + '/new';\n       }\n     });\n     ```\n      @method urlForCreateRecord\n     @param {String} modelName\n     @param {Snapshot} snapshot\n     @return {String} url\n     */\n    urlForCreateRecord(modelName, snapshot) {\n      return this._buildURL(modelName);\n    },\n\n    /**\n     Builds a URL for a `record.save()` call when the record has been updated locally.\n      Example:\n      ```app/adapters/application.js\n     import RESTAdapter from '@ember-data/adapter/rest';\n      export default RESTAdapter.extend({\n       urlForUpdateRecord(id, modelName, snapshot) {\n         return `/${id}/feed?access_token=${snapshot.adapterOptions.token}`;\n       }\n     });\n     ```\n      @method urlForUpdateRecord\n     @param {String} id\n     @param {String} modelName\n     @param {Snapshot} snapshot\n     @return {String} url\n     */\n    urlForUpdateRecord(id, modelName, snapshot) {\n      return this._buildURL(modelName, id);\n    },\n\n    /**\n     Builds a URL for a `record.save()` call when the record has been deleted locally.\n      Example:\n      ```app/adapters/application.js\n     import RESTAdapter from '@ember-data/adapter/rest';\n      export default RESTAdapter.extend({\n       urlForDeleteRecord(id, modelName, snapshot) {\n         return this._super(...arguments) + '/destroy';\n       }\n     });\n     ```\n      @method urlForDeleteRecord\n     @param {String} id\n     @param {String} modelName\n     @param {Snapshot} snapshot\n     @return {String} url\n     */\n    urlForDeleteRecord(id, modelName, snapshot) {\n      return this._buildURL(modelName, id);\n    },\n\n    /**\n      @method urlPrefix\n      @private\n      @param {String} path\n      @param {String} parentURL\n      @return {String} urlPrefix\n    */\n    urlPrefix(path, parentURL) {\n      var host = Ember.get(this, 'host');\n      var namespace = Ember.get(this, 'namespace');\n\n      if (!host || host === '/') {\n        host = '';\n      }\n\n      if (path) {\n        // Protocol relative url\n        if (/^\\/\\//.test(path) || /http(s)?:\\/\\//.test(path)) {\n          // Do nothing, the full host is already included.\n          return path; // Absolute path\n        } else if (path.charAt(0) === '/') {\n          return `${host}${path}`; // Relative path\n        } else {\n          return `${parentURL}/${path}`;\n        }\n      } // No path provided\n\n\n      var url = [];\n\n      if (host) {\n        url.push(host);\n      }\n\n      if (namespace) {\n        url.push(namespace);\n      }\n\n      return url.join('/');\n    },\n\n    /**\n      Determines the pathname for a given type.\n       By default, it pluralizes the type's name (for example,\n      'post' becomes 'posts' and 'person' becomes 'people').\n       ### Pathname customization\n       For example, if you have an object `LineItem` with an\n      endpoint of `/line_items/`.\n       ```app/adapters/application.js\n      import RESTAdapter from '@ember-data/adapter/rest';\n      import { decamelize } from '@ember/string';\n      import { pluralize } from 'ember-inflector';\n       export default RESTAdapter.extend({\n        pathForType: function(modelName) {\n          var decamelized = decamelize(modelName);\n          return pluralize(decamelized);\n        }\n      });\n      ```\n       @method pathForType\n      @param {String} modelName\n      @return {String} path\n    **/\n    pathForType(modelName) {\n      var camelized = Ember.String.camelize(modelName);\n      return emberInflector.pluralize(camelized);\n    }\n\n  });\n\n  function serializeIntoHash(store, modelClass, snapshot, options = {\n    includeId: true\n  }) {\n    var serializer = store.serializerFor(modelClass.modelName);\n\n    if (typeof serializer.serializeIntoHash === 'function') {\n      var data = {};\n      serializer.serializeIntoHash(data, modelClass, snapshot, options);\n      return data;\n    }\n\n    return serializer.serialize(snapshot, options);\n  }\n\n  exports.BuildURLMixin = buildUrlMixin;\n  exports.determineBodyPromise = determineBodyPromise;\n  exports.fetch = getFetchFunction;\n  exports.parseResponseHeaders = parseResponseHeaders;\n  exports.serializeIntoHash = serializeIntoHash;\n  exports.serializeQueryParams = serializeQueryParams;\n\n  Object.defineProperty(exports, '__esModule', { value: true });\n\n});\n","define(\"@ember-data/adapter/error\", [\"exports\", \"@ember-data/store/-private\"], function (_exports, _private) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"errorsHashToArray\", {\n    enumerable: true,\n    get: function () {\n      return _private.errorsHashToArray;\n    }\n  });\n  Object.defineProperty(_exports, \"errorsArrayToHash\", {\n    enumerable: true,\n    get: function () {\n      return _private.errorsArrayToHash;\n    }\n  });\n  _exports.ServerError = _exports.ConflictError = _exports.NotFoundError = _exports.ForbiddenError = _exports.UnauthorizedError = _exports.AbortError = _exports.TimeoutError = _exports.InvalidError = _exports.default = void 0;\n\n  /**\n    @module @ember-data/adapter\n  */\n\n  /**\n    A `AdapterError` is used by an adapter to signal that an error occurred\n    during a request to an external API. It indicates a generic error, and\n    subclasses are used to indicate specific error states. The following\n    subclasses are provided:\n  \n    - `InvalidError`\n    - `TimeoutError`\n    - `AbortError`\n    - `UnauthorizedError`\n    - `ForbiddenError`\n    - `NotFoundError`\n    - `ConflictError`\n    - `ServerError`\n  \n    To create a custom error to signal a specific error state in communicating\n    with an external API, extend the `AdapterError`. For example, if the\n    external API exclusively used HTTP `503 Service Unavailable` to indicate\n    it was closed for maintenance:\n  \n    ```app/adapters/maintenance-error.js\n    import AdapterError from '@ember-data/adapter/error';\n  \n    export default AdapterError.extend({ message: \"Down for maintenance.\" });\n    ```\n  \n    This error would then be returned by an adapter's `handleResponse` method:\n  \n    ```app/adapters/application.js\n    import JSONAPIAdapter from '@ember-data/adapter/json-api';\n    import MaintenanceError from './maintenance-error';\n  \n    export default JSONAPIAdapter.extend({\n      handleResponse(status) {\n        if (503 === status) {\n          return new MaintenanceError();\n        }\n  \n        return this._super(...arguments);\n      }\n    });\n    ```\n  \n    And can then be detected in an application and used to send the user to an\n    `under-maintenance` route:\n  \n    ```app/routes/application.js\n    import Route from '@ember/routing/route';\n    import MaintenanceError from '../adapters/maintenance-error';\n  \n    export default Route.extend({\n      actions: {\n        error(error, transition) {\n          if (error instanceof MaintenanceError) {\n            this.transitionTo('under-maintenance');\n            return;\n          }\n  \n          // ...other error handling logic\n        }\n      }\n    });\n    ```\n  \n    @class AdapterError\n  */\n  function AdapterError(errors, message = 'Adapter operation failed') {\n    this.isAdapterError = true;\n    var error = Ember.Error.call(this, message); // in ember 3.8+ Error is a Native Error and we don't\n    // gain these automatically from the EmberError.call\n\n    if (error) {\n      this.stack = error.stack;\n      this.description = error.description;\n      this.fileName = error.fileName;\n      this.lineNumber = error.lineNumber;\n      this.message = error.message;\n      this.name = error.name;\n      this.number = error.number;\n    }\n\n    this.errors = errors || [{\n      title: 'Adapter Error',\n      detail: message\n    }];\n  }\n\n  var _default = AdapterError;\n  _exports.default = _default;\n\n  function extendFn(ErrorClass) {\n    return function ({\n      message: defaultMessage\n    } = {}) {\n      return extend(ErrorClass, defaultMessage);\n    };\n  }\n\n  function extend(ParentErrorClass, defaultMessage) {\n    var ErrorClass = function (errors, message) {\n      (true && !(Array.isArray(errors || [])) && Ember.assert('`AdapterError` expects json-api formatted errors array.', Array.isArray(errors || [])));\n      ParentErrorClass.call(this, errors, message || defaultMessage);\n    };\n\n    ErrorClass.prototype = Object.create(ParentErrorClass.prototype);\n    ErrorClass.extend = extendFn(ErrorClass);\n    return ErrorClass;\n  }\n\n  AdapterError.prototype = Object.create(Ember.Error.prototype);\n  AdapterError.prototype.code = 'AdapterError';\n  AdapterError.extend = extendFn(AdapterError);\n  /**\n    A `InvalidError` is used by an adapter to signal the external API\n    was unable to process a request because the content was not\n    semantically correct or meaningful per the API. Usually, this means a\n    record failed some form of server-side validation. When a promise\n    from an adapter is rejected with a `InvalidError` the record will\n    transition to the `invalid` state and the errors will be set to the\n    `errors` property on the record.\n  \n    For Ember Data to correctly map errors to their corresponding\n    properties on the model, Ember Data expects each error to be\n    a valid JSON-API error object with a `source/pointer` that matches\n    the property name. For example, if you had a Post model that\n    looked like this.\n  \n    ```app/models/post.js\n    import Model, { attr } from '@ember-data/model';\n  \n    export default Model.extend({\n      title: attr('string'),\n      content: attr('string')\n    });\n    ```\n  \n    To show an error from the server related to the `title` and\n    `content` properties your adapter could return a promise that\n    rejects with a `InvalidError` object that looks like this:\n  \n    ```app/adapters/post.js\n    import RSVP from 'RSVP';\n    import RESTAdapter from '@ember-data/adapter/rest';\n    import { InvalidError } from '@ember-data/adapter/error';\n  \n    export default RESTAdapter.extend({\n      updateRecord() {\n        // Fictional adapter that always rejects\n        return RSVP.reject(new InvalidError([\n          {\n            detail: 'Must be unique',\n            source: { pointer: '/data/attributes/title' }\n          },\n          {\n            detail: 'Must not be blank',\n            source: { pointer: '/data/attributes/content'}\n          }\n        ]));\n      }\n    });\n    ```\n  \n    Your backend may use different property names for your records the\n    store will attempt to extract and normalize the errors using the\n    serializer's `extractErrors` method before the errors get added to\n    the model. As a result, it is safe for the `InvalidError` to\n    wrap the error payload unaltered.\n  \n    @class InvalidError\n    @extends AdapterError\n  */\n\n  var InvalidError = extend(AdapterError, 'The adapter rejected the commit because it was invalid');\n  _exports.InvalidError = InvalidError;\n  InvalidError.prototype.code = 'InvalidError';\n  /**\n    A `TimeoutError` is used by an adapter to signal that a request\n    to the external API has timed out. I.e. no response was received from\n    the external API within an allowed time period.\n  \n    An example use case would be to warn the user to check their internet\n    connection if an adapter operation has timed out:\n  \n    ```app/routes/application.js\n    import Route from '@ember/routing/route';\n    import { TimeoutError } from '@ember-data/adapter/error';\n    import { action } from '@ember/object';\n  \n    export default class ApplicationRoute extends Route {\n      @action\n      error(error, transition) {\n        if (error instanceof TimeoutError) {\n          // alert the user\n          alert('Are you still connected to the Internet?');\n          return;\n        }\n  \n        // ...other error handling logic\n      }\n    }\n    ```\n  \n    @class TimeoutError\n    @extends AdapterError\n  */\n\n  var TimeoutError = extend(AdapterError, 'The adapter operation timed out');\n  _exports.TimeoutError = TimeoutError;\n  TimeoutError.prototype.code = 'TimeoutError';\n  /**\n    A `AbortError` is used by an adapter to signal that a request to\n    the external API was aborted. For example, this can occur if the user\n    navigates away from the current page after a request to the external API\n    has been initiated but before a response has been received.\n  \n    @class AbortError\n    @extends AdapterError\n  */\n\n  var AbortError = extend(AdapterError, 'The adapter operation was aborted');\n  _exports.AbortError = AbortError;\n  AbortError.prototype.code = 'AbortError';\n  /**\n    A `UnauthorizedError` equates to a HTTP `401 Unauthorized` response\n    status. It is used by an adapter to signal that a request to the external\n    API was rejected because authorization is required and has failed or has not\n    yet been provided.\n  \n    An example use case would be to redirect the user to a login route if a\n    request is unauthorized:\n  \n    ```app/routes/application.js\n    import Route from '@ember/routing/route';\n    import { UnauthorizedError } from '@ember-data/adapter/error';\n    import { action } from '@ember/object';\n  \n    export default class ApplicationRoute extends Route {\n      @action\n      error(error, transition) {\n        if (error instanceof UnauthorizedError) {\n          // go to the login route\n          this.transitionTo('login');\n          return;\n        }\n  \n        // ...other error handling logic\n      }\n    }\n    ```\n  \n    @class UnauthorizedError\n    @extends AdapterError\n  */\n\n  var UnauthorizedError = extend(AdapterError, 'The adapter operation is unauthorized');\n  _exports.UnauthorizedError = UnauthorizedError;\n  UnauthorizedError.prototype.code = 'UnauthorizedError';\n  /**\n    A `ForbiddenError` equates to a HTTP `403 Forbidden` response status.\n    It is used by an adapter to signal that a request to the external API was\n    valid but the server is refusing to respond to it. If authorization was\n    provided and is valid, then the authenticated user does not have the\n    necessary permissions for the request.\n  \n    @class ForbiddenError\n    @extends AdapterError\n  */\n\n  var ForbiddenError = extend(AdapterError, 'The adapter operation is forbidden');\n  _exports.ForbiddenError = ForbiddenError;\n  ForbiddenError.prototype.code = 'ForbiddenError';\n  /**\n    A `NotFoundError` equates to a HTTP `404 Not Found` response status.\n    It is used by an adapter to signal that a request to the external API\n    was rejected because the resource could not be found on the API.\n  \n    An example use case would be to detect if the user has entered a route\n    for a specific model that does not exist. For example:\n  \n    ```app/routes/post.js\n    import Route from '@ember/routing/route';\n    import { NotFoundError } from '@ember-data/adapter/error';\n    import { inject as service } from '@ember/service';\n    import { action } from '@ember/object';\n  \n    export default class PostRoute extends Route {\n      @service store;\n      model(params) {\n        return this.get('store').findRecord('post', params.post_id);\n      }\n      @action\n      error(error, transition) {\n        if (error instanceof NotFoundError) {\n          // redirect to a list of all posts instead\n          this.transitionTo('posts');\n        } else {\n          // otherwise let the error bubble\n          return true;\n        }\n      }\n    }\n    ```\n  \n    @class NotFoundError\n    @extends AdapterError\n  */\n\n  var NotFoundError = extend(AdapterError, 'The adapter could not find the resource');\n  _exports.NotFoundError = NotFoundError;\n  NotFoundError.prototype.code = 'NotFoundError';\n  /**\n    A `ConflictError` equates to a HTTP `409 Conflict` response status.\n    It is used by an adapter to indicate that the request could not be processed\n    because of a conflict in the request. An example scenario would be when\n    creating a record with a client-generated ID but that ID is already known\n    to the external API.\n  \n    @class ConflictError\n    @extends AdapterError\n  */\n\n  var ConflictError = extend(AdapterError, 'The adapter operation failed due to a conflict');\n  _exports.ConflictError = ConflictError;\n  ConflictError.prototype.code = 'ConflictError';\n  /**\n    A `ServerError` equates to a HTTP `500 Internal Server Error` response\n    status. It is used by the adapter to indicate that a request has failed\n    because of an error in the external API.\n  \n    @class ServerError\n    @extends AdapterError\n  */\n\n  var ServerError = extend(AdapterError, 'The adapter operation failed due to a server error');\n  _exports.ServerError = ServerError;\n  ServerError.prototype.code = 'ServerError';\n});","define(\"@ember-data/adapter/index\", [\"exports\", \"@ember-data/adapter/-private\"], function (_exports, _private) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"BuildURLMixin\", {\n    enumerable: true,\n    get: function () {\n      return _private.BuildURLMixin;\n    }\n  });\n  _exports.default = void 0;\n\n  /**\n    An adapter is an object that receives requests from a store and\n    translates them into the appropriate action to take against your\n    persistence layer. The persistence layer is usually an HTTP API but\n    may be anything, such as the browser's local storage. Typically the\n    adapter is not invoked directly instead its functionality is accessed\n    through the `store`.\n  \n    ### Creating an Adapter\n  \n    Create a new subclass of `Adapter` in the `app/adapters` folder:\n  \n    ```app/adapters/application.js\n    import Adapter from '@ember-data/adapter';\n  \n    export default Adapter.extend({\n      // ...your code here\n    });\n    ```\n  \n    Model-specific adapters can be created by putting your adapter\n    class in an `app/adapters/` + `model-name` + `.js` file of the application.\n  \n    ```app/adapters/post.js\n    import Adapter from '@ember-data/adapter';\n  \n    export default Adapter.extend({\n      // ...Post-specific adapter code goes here\n    });\n    ```\n  \n    `Adapter` is an abstract base class that you should override in your\n    application to customize it for your backend. The minimum set of methods\n    that you should implement is:\n  \n      * `findRecord()`\n      * `createRecord()`\n      * `updateRecord()`\n      * `deleteRecord()`\n      * `findAll()`\n      * `query()`\n  \n    To improve the network performance of your application, you can optimize\n    your adapter by overriding these lower-level methods:\n  \n      * `findMany()`\n  \n  \n    For an example of the implementation, see `RESTAdapter`, the\n    included REST adapter.\n  \n    @module @ember-data/adapter\n    @class Adapter\n    @extends EmberObject\n  */\n  var _default = Ember.Object.extend({\n    /**\n      If you would like your adapter to use a custom serializer you can\n      set the `defaultSerializer` property to be the name of the custom\n      serializer.\n       Note the `defaultSerializer` serializer has a lower priority than\n      a model specific serializer (i.e. `PostSerializer`) or the\n      `application` serializer.\n       ```app/adapters/django.js\n      import Adapter from '@ember-data/adapter';\n       export default Adapter.extend({\n        defaultSerializer: 'django'\n      });\n      ```\n       @deprecated\n      @property defaultSerializer\n      @type {String}\n    */\n    defaultSerializer: '-default',\n\n    /**\n      The `findRecord()` method is invoked when the store is asked for a record that\n      has not previously been loaded. In response to `findRecord()` being called, you\n      should query your persistence layer for a record with the given ID. The `findRecord`\n      method should return a promise that will resolve to a JavaScript object that will be\n      normalized by the serializer.\n       Here is an example of the `findRecord` implementation:\n       ```app/adapters/application.js\n      import Adapter from '@ember-data/adapter';\n      import RSVP from 'RSVP';\n      import $ from 'jquery';\n       export default Adapter.extend({\n        findRecord(store, type, id, snapshot) {\n          return new RSVP.Promise(function(resolve, reject) {\n            $.getJSON(`/${type.modelName}/${id}`).then(function(data) {\n              resolve(data);\n            }, function(jqXHR) {\n              reject(jqXHR);\n            });\n          });\n        }\n      });\n      ```\n       @method findRecord\n      @param {Store} store\n      @param {Model} type\n      @param {String} id\n      @param {Snapshot} snapshot\n      @return {Promise} promise\n    */\n    findRecord: null,\n\n    /**\n      The `findAll()` method is used to retrieve all records for a given type.\n       Example\n       ```app/adapters/application.js\n      import Adapter from '@ember-data/adapter';\n      import RSVP from 'RSVP';\n      import $ from 'jquery';\n       export default Adapter.extend({\n        findAll(store, type) {\n          return new RSVP.Promise(function(resolve, reject) {\n            $.getJSON(`/${type.modelName}`).then(function(data) {\n              resolve(data);\n            }, function(jqXHR) {\n              reject(jqXHR);\n            });\n          });\n        }\n      });\n      ```\n       @method findAll\n      @param {Store} store\n      @param {Model} type\n      @param {undefined} neverSet a value is never provided to this argument\n      @param {SnapshotRecordArray} snapshotRecordArray\n      @return {Promise} promise\n    */\n    findAll: null,\n\n    /**\n      This method is called when you call `query` on the store.\n       Example\n       ```app/adapters/application.js\n      import Adapter from '@ember-data/adapter';\n      import RSVP from 'RSVP';\n      import $ from 'jquery';\n       export default Adapter.extend({\n        query(store, type, query) {\n          return new RSVP.Promise(function(resolve, reject) {\n            $.getJSON(`/${type.modelName}`, query).then(function(data) {\n              resolve(data);\n            }, function(jqXHR) {\n              reject(jqXHR);\n            });\n          });\n        }\n      });\n      ```\n       @method query\n      @param {Store} store\n      @param {Model} type\n      @param {Object} query\n      @param {AdapterPopulatedRecordArray} recordArray\n      @return {Promise} promise\n    */\n    query: null,\n\n    /**\n      The `queryRecord()` method is invoked when the store is asked for a single\n      record through a query object.\n       In response to `queryRecord()` being called, you should always fetch fresh\n      data. Once found, you can asynchronously call the store's `push()` method\n      to push the record into the store.\n       Here is an example `queryRecord` implementation:\n       Example\n       ```app/adapters/application.js\n      import Adapter, { BuildURLMixin } from '@ember-data/adapter';\n      import RSVP from 'RSVP';\n      import $ from 'jquery';\n       export default Adapter.extend(BuildURLMixin, {\n        queryRecord(store, type, query) {\n          return new RSVP.Promise(function(resolve, reject) {\n            $.getJSON(`/${type.modelName}`, query).then(function(data) {\n              resolve(data);\n            }, function(jqXHR) {\n              reject(jqXHR);\n            });\n          });\n        }\n      });\n      ```\n       @method queryRecord\n      @param {Store} store\n      @param {subclass of Model} type\n      @param {Object} query\n      @return {Promise} promise\n    */\n    queryRecord: null,\n\n    /**\n      If the globally unique IDs for your records should be generated on the client,\n      implement the `generateIdForRecord()` method. This method will be invoked\n      each time you create a new record, and the value returned from it will be\n      assigned to the record's `primaryKey`.\n       Most traditional REST-like HTTP APIs will not use this method. Instead, the ID\n      of the record will be set by the server, and your adapter will update the store\n      with the new ID when it calls `didCreateRecord()`. Only implement this method if\n      you intend to generate record IDs on the client-side.\n       The `generateIdForRecord()` method will be invoked with the requesting store as\n      the first parameter and the newly created record as the second parameter:\n       ```javascript\n      import Adapter from '@ember-data/adapter';\n      import { v4 } from 'uuid';\n       export default Adapter.extend({\n        generateIdForRecord(store, type, inputProperties) {\n          return v4();\n        }\n      });\n      ```\n       @method generateIdForRecord\n      @param {Store} store\n      @param {Model} type   the Model class of the record\n      @param {Object} inputProperties a hash of properties to set on the\n        newly created record.\n      @return {(String|Number)} id\n    */\n    generateIdForRecord: null,\n\n    /**\n      Proxies to the serializer's `serialize` method.\n       Example\n       ```app/adapters/application.js\n      import Adapter from '@ember-data/adapter';\n       export default Adapter.extend({\n        createRecord(store, type, snapshot) {\n          let data = this.serialize(snapshot, { includeId: true });\n          let url = `/${type.modelName}`;\n           // ...\n        }\n      });\n      ```\n       @method serialize\n      @param {Snapshot} snapshot\n      @param {Object}   options\n      @return {Object} serialized snapshot\n    */\n    serialize(snapshot, options) {\n      return snapshot.serialize(options);\n    },\n\n    /**\n      Implement this method in a subclass to handle the creation of\n      new records.\n       Serializes the record and sends it to the server.\n       Example\n       ```app/adapters/application.js\n      import Adapter from '@ember-data/adapter';\n      import { run } from '@ember/runloop';\n      import RSVP from 'RSVP';\n      import $ from 'jquery';\n       export default Adapter.extend({\n        createRecord(store, type, snapshot) {\n          let data = this.serialize(snapshot, { includeId: true });\n           return new RSVP.Promise(function(resolve, reject) {\n            $.ajax({\n              type: 'POST',\n              url: `/${type.modelName}`,\n              dataType: 'json',\n              data: data\n            }).then(function(data) {\n              run(null, resolve, data);\n            }, function(jqXHR) {\n              jqXHR.then = null; // tame jQuery's ill mannered promises\n              run(null, reject, jqXHR);\n            });\n          });\n        }\n      });\n      ```\n       @method createRecord\n      @param {Store} store\n      @param {Model} type   the Model class of the record\n      @param {Snapshot} snapshot\n      @return {Promise} promise\n    */\n    createRecord: null,\n\n    /**\n      Implement this method in a subclass to handle the updating of\n      a record.\n       Serializes the record update and sends it to the server.\n       The updateRecord method is expected to return a promise that will\n      resolve with the serialized record. This allows the backend to\n      inform the Ember Data store the current state of this record after\n      the update. If it is not possible to return a serialized record\n      the updateRecord promise can also resolve with `undefined` and the\n      Ember Data store will assume all of the updates were successfully\n      applied on the backend.\n       Example\n       ```app/adapters/application.js\n      import Adapter from '@ember-data/adapter';\n      import { run } from '@ember/runloop';\n      import RSVP from 'RSVP';\n      import $ from 'jquery';\n       export default Adapter.extend({\n        updateRecord(store, type, snapshot) {\n          let data = this.serialize(snapshot, { includeId: true });\n          let id = snapshot.id;\n           return new RSVP.Promise(function(resolve, reject) {\n            $.ajax({\n              type: 'PUT',\n              url: `/${type.modelName}/${id}`,\n              dataType: 'json',\n              data: data\n            }).then(function(data) {\n              run(null, resolve, data);\n            }, function(jqXHR) {\n              jqXHR.then = null; // tame jQuery's ill mannered promises\n              run(null, reject, jqXHR);\n            });\n          });\n        }\n      });\n      ```\n       @method updateRecord\n      @param {Store} store\n      @param {Model} type   the Model class of the record\n      @param {Snapshot} snapshot\n      @return {Promise} promise\n    */\n    updateRecord: null,\n\n    /**\n      Implement this method in a subclass to handle the deletion of\n      a record.\n       Sends a delete request for the record to the server.\n       Example\n       ```app/adapters/application.js\n      import Adapter from '@ember-data/adapter';\n      import { run } from '@ember/runloop';\n      import RSVP from 'RSVP';\n      import $ from 'jquery';\n       export default Adapter.extend({\n        deleteRecord(store, type, snapshot) {\n          let data = this.serialize(snapshot, { includeId: true });\n          let id = snapshot.id;\n           return new RSVP.Promise(function(resolve, reject) {\n            $.ajax({\n              type: 'DELETE',\n              url: `/${type.modelName}/${id}`,\n              dataType: 'json',\n              data: data\n            }).then(function(data) {\n              run(null, resolve, data);\n            }, function(jqXHR) {\n              jqXHR.then = null; // tame jQuery's ill mannered promises\n              run(null, reject, jqXHR);\n            });\n          });\n        }\n      });\n      ```\n       @method deleteRecord\n      @param {Store} store\n      @param {Model} type   the Model class of the record\n      @param {Snapshot} snapshot\n      @return {Promise} promise\n    */\n    deleteRecord: null,\n\n    /**\n      By default the store will try to coalesce all `fetchRecord` calls within the same runloop\n      into as few requests as possible by calling groupRecordsForFindMany and passing it into a findMany call.\n      You can opt out of this behaviour by either not implementing the findMany hook or by setting\n      coalesceFindRequests to false.\n       @property coalesceFindRequests\n      @type {boolean}\n    */\n    coalesceFindRequests: true,\n\n    /**\n      The store will call `findMany` instead of multiple `findRecord`\n      requests to find multiple records at once if coalesceFindRequests\n      is true.\n       ```app/adapters/application.js\n      import Adapter from '@ember-data/adapter';\n      import { run } from '@ember/runloop';\n      import RSVP from 'RSVP';\n      import $ from 'jquery';\n       export default Adapter.extend({\n        findMany(store, type, ids, snapshots) {\n          return new RSVP.Promise(function(resolve, reject) {\n            $.ajax({\n              type: 'GET',\n              url: `/${type.modelName}/`,\n              dataType: 'json',\n              data: { filter: { id: ids.join(',') } }\n            }).then(function(data) {\n              run(null, resolve, data);\n            }, function(jqXHR) {\n              jqXHR.then = null; // tame jQuery's ill mannered promises\n              run(null, reject, jqXHR);\n            });\n          });\n        }\n      });\n      ```\n       @method findMany\n      @param {Store} store\n      @param {Model} type   the Model class of the records\n      @param {Array}    ids\n      @param {Array} snapshots\n      @return {Promise} promise\n    */\n    findMany: null,\n\n    /**\n      Organize records into groups, each of which is to be passed to separate\n      calls to `findMany`.\n       For example, if your API has nested URLs that depend on the parent, you will\n      want to group records by their parent.\n       The default implementation returns the records as a single group.\n       @method groupRecordsForFindMany\n      @param {Store} store\n      @param {Array} snapshots\n      @return {Array}  an array of arrays of records, each of which is to be\n                        loaded separately by `findMany`.\n    */\n    groupRecordsForFindMany(store, snapshots) {\n      return [snapshots];\n    },\n\n    /**\n      This method is used by the store to determine if the store should\n      reload a record from the adapter when a record is requested by\n      `store.findRecord`.\n       If this method returns `true`, the store will re-fetch a record from\n      the adapter. If this method returns `false`, the store will resolve\n      immediately using the cached record.\n       For example, if you are building an events ticketing system, in which users\n      can only reserve tickets for 20 minutes at a time, and want to ensure that\n      in each route you have data that is no more than 20 minutes old you could\n      write:\n       ```javascript\n      shouldReloadRecord(store, ticketSnapshot) {\n        let lastAccessedAt = ticketSnapshot.attr('lastAccessedAt');\n        let timeDiff = moment().diff(lastAccessedAt, 'minutes');\n         if (timeDiff > 20) {\n          return true;\n        } else {\n          return false;\n        }\n      }\n      ```\n       This method would ensure that whenever you do `store.findRecord('ticket',\n      id)` you will always get a ticket that is no more than 20 minutes old. In\n      case the cached version is more than 20 minutes old, `findRecord` will not\n      resolve until you fetched the latest version.\n       By default this hook returns `false`, as most UIs should not block user\n      interactions while waiting on data update.\n       Note that, with default settings, `shouldBackgroundReloadRecord` will always\n      re-fetch the records in the background even if `shouldReloadRecord` returns\n      `false`. You can override `shouldBackgroundReloadRecord` if this does not\n      suit your use case.\n       @since 1.13.0\n      @method shouldReloadRecord\n      @param {Store} store\n      @param {Snapshot} snapshot\n      @return {Boolean}\n    */\n    shouldReloadRecord(store, snapshot) {\n      return false;\n    },\n\n    /**\n      This method is used by the store to determine if the store should\n      reload all records from the adapter when records are requested by\n      `store.findAll`.\n       If this method returns `true`, the store will re-fetch all records from\n      the adapter. If this method returns `false`, the store will resolve\n      immediately using the cached records.\n       For example, if you are building an events ticketing system, in which users\n      can only reserve tickets for 20 minutes at a time, and want to ensure that\n      in each route you have data that is no more than 20 minutes old you could\n      write:\n       ```javascript\n      shouldReloadAll(store, snapshotArray) {\n        let snapshots = snapshotArray.snapshots();\n         return snapshots.any((ticketSnapshot) => {\n          let lastAccessedAt = ticketSnapshot.attr('lastAccessedAt');\n          let timeDiff = moment().diff(lastAccessedAt, 'minutes');\n           if (timeDiff > 20) {\n            return true;\n          } else {\n            return false;\n          }\n        });\n      }\n      ```\n       This method would ensure that whenever you do `store.findAll('ticket')` you\n      will always get a list of tickets that are no more than 20 minutes old. In\n      case a cached version is more than 20 minutes old, `findAll` will not\n      resolve until you fetched the latest versions.\n       By default, this method returns `true` if the passed `snapshotRecordArray`\n      is empty (meaning that there are no records locally available yet),\n      otherwise, it returns `false`.\n       Note that, with default settings, `shouldBackgroundReloadAll` will always\n      re-fetch all the records in the background even if `shouldReloadAll` returns\n      `false`. You can override `shouldBackgroundReloadAll` if this does not suit\n      your use case.\n       @since 1.13.0\n      @method shouldReloadAll\n      @param {Store} store\n      @param {SnapshotRecordArray} snapshotRecordArray\n      @return {Boolean}\n    */\n    shouldReloadAll(store, snapshotRecordArray) {\n      return !snapshotRecordArray.length;\n    },\n\n    /**\n      This method is used by the store to determine if the store should\n      reload a record after the `store.findRecord` method resolves a\n      cached record.\n       This method is *only* checked by the store when the store is\n      returning a cached record.\n       If this method returns `true` the store will re-fetch a record from\n      the adapter.\n       For example, if you do not want to fetch complex data over a mobile\n      connection, or if the network is down, you can implement\n      `shouldBackgroundReloadRecord` as follows:\n       ```javascript\n      shouldBackgroundReloadRecord(store, snapshot) {\n        let { downlink, effectiveType } = navigator.connection;\n         return downlink > 0 && effectiveType === '4g';\n      }\n      ```\n       By default, this hook returns `true` so the data for the record is updated\n      in the background.\n       @since 1.13.0\n      @method shouldBackgroundReloadRecord\n      @param {Store} store\n      @param {Snapshot} snapshot\n      @return {Boolean}\n    */\n    shouldBackgroundReloadRecord(store, snapshot) {\n      return true;\n    },\n\n    /**\n      This method is used by the store to determine if the store should\n      reload a record array after the `store.findAll` method resolves\n      with a cached record array.\n       This method is *only* checked by the store when the store is\n      returning a cached record array.\n       If this method returns `true` the store will re-fetch all records\n      from the adapter.\n       For example, if you do not want to fetch complex data over a mobile\n      connection, or if the network is down, you can implement\n      `shouldBackgroundReloadAll` as follows:\n       ```javascript\n      shouldBackgroundReloadAll(store, snapshotArray) {\n        let { downlink, effectiveType } = navigator.connection;\n         return downlink > 0 && effectiveType === '4g';\n      }\n      ```\n       By default this method returns `true`, indicating that a background reload\n      should always be triggered.\n       @since 1.13.0\n      @method shouldBackgroundReloadAll\n      @param {Store} store\n      @param {SnapshotRecordArray} snapshotRecordArray\n      @return {Boolean}\n    */\n    shouldBackgroundReloadAll(store, snapshotRecordArray) {\n      return true;\n    }\n\n  });\n\n  _exports.default = _default;\n});","define(\"@ember-data/adapter/json-api\", [\"exports\", \"ember-inflector\", \"@ember-data/adapter/-private\", \"@ember-data/adapter/rest\"], function (_exports, _emberInflector, _private, _rest) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n    The `JSONAPIAdapter` is the default adapter used by Ember Data. It\n    is responsible for transforming the store's requests into HTTP\n    requests that follow the [JSON API](http://jsonapi.org/format/)\n    format.\n  \n    ## JSON API Conventions\n  \n    The JSONAPIAdapter uses JSON API conventions for building the URL\n    for a record and selecting the HTTP verb to use with a request. The\n    actions you can take on a record map onto the following URLs in the\n    JSON API adapter:\n  \n  <table>\n    <tr>\n      <th>\n        Action\n      </th>\n      <th>\n        HTTP Verb\n      </th>\n      <th>\n        URL\n      </th>\n    </tr>\n    <tr>\n      <th>\n        `store.findRecord('post', 123)`\n      </th>\n      <td>\n        GET\n      </td>\n      <td>\n        /posts/123\n      </td>\n    </tr>\n    <tr>\n      <th>\n        `store.findAll('post')`\n      </th>\n      <td>\n        GET\n      </td>\n      <td>\n        /posts\n      </td>\n    </tr>\n    <tr>\n      <th>\n        Update `postRecord.save()`\n      </th>\n      <td>\n        PATCH\n      </td>\n      <td>\n        /posts/123\n      </td>\n    </tr>\n    <tr>\n      <th>\n        Create `store.createRecord('post').save()`\n      </th>\n      <td>\n        POST\n      </td>\n      <td>\n        /posts\n      </td>\n    </tr>\n    <tr>\n      <th>\n        Delete `postRecord.destroyRecord()`\n      </th>\n      <td>\n        DELETE\n      </td>\n      <td>\n        /posts/123\n      </td>\n    </tr>\n  </table>\n  \n    ## Success and failure\n  \n    The JSONAPIAdapter will consider a success any response with a\n    status code of the 2xx family (\"Success\"), as well as 304 (\"Not\n    Modified\"). Any other status code will be considered a failure.\n  \n    On success, the request promise will be resolved with the full\n    response payload.\n  \n    Failed responses with status code 422 (\"Unprocessable Entity\") will\n    be considered \"invalid\". The response will be discarded, except for\n    the `errors` key. The request promise will be rejected with a\n    `InvalidError`. This error object will encapsulate the saved\n    `errors` value.\n  \n    Any other status codes will be treated as an adapter error. The\n    request promise will be rejected, similarly to the invalid case,\n    but with an instance of `AdapterError` instead.\n  \n    ### Endpoint path customization\n  \n    Endpoint paths can be prefixed with a `namespace` by setting the\n    namespace property on the adapter:\n  \n    ```app/adapters/application.js\n    import JSONAPIAdapter from '@ember-data/adapter/json-api';\n  \n    export default JSONAPIAdapter.extend({\n      namespace: 'api/1'\n    });\n    ```\n    Requests for the `person` model would now target `/api/1/people/1`.\n  \n    ### Host customization\n  \n    An adapter can target other hosts by setting the `host` property.\n  \n    ```app/adapters/application.js\n    import JSONAPIAdapter from '@ember-data/adapter/json-api';\n  \n    export default JSONAPIAdapter.extend({\n      host: 'https://api.example.com'\n    });\n    ```\n  \n    Requests for the `person` model would now target\n    `https://api.example.com/people/1`.\n  \n    @since 1.13.0\n    @class JSONAPIAdapter\n    @constructor\n    @extends RESTAdapter\n  */\n  var JSONAPIAdapter = _rest.default.extend({\n    defaultSerializer: '-json-api',\n    _defaultContentType: 'application/vnd.api+json',\n\n    /**\n      @method ajaxOptions\n      @private\n      @param {String} url\n      @param {String} type The request type GET, POST, PUT, DELETE etc.\n      @param {Object} options\n      @return {Object}\n    */\n    ajaxOptions(url, type, options = {}) {\n      var hash = this._super(url, type, options);\n\n      hash.headers['Accept'] = hash.headers['Accept'] || 'application/vnd.api+json';\n      return hash;\n    },\n\n    /**\n      By default the JSONAPIAdapter will send each find request coming from a `store.find`\n      or from accessing a relationship separately to the server. If your server supports passing\n      ids as a query string, you can set coalesceFindRequests to true to coalesce all find requests\n      within a single runloop.\n       For example, if you have an initial payload of:\n       ```javascript\n      {\n        data: {\n          id: 1,\n          type: 'post',\n          relationship: {\n            comments: {\n              data: [\n                { id: 1, type: 'comment' },\n                { id: 2, type: 'comment' }\n              ]\n            }\n          }\n        }\n      }\n      ```\n       By default calling `post.get('comments')` will trigger the following requests(assuming the\n      comments haven't been loaded before):\n       ```\n      GET /comments/1\n      GET /comments/2\n      ```\n       If you set coalesceFindRequests to `true` it will instead trigger the following request:\n       ```\n      GET /comments?filter[id]=1,2\n      ```\n       Setting coalesceFindRequests to `true` also works for `store.find` requests and `belongsTo`\n      relationships accessed within the same runloop. If you set `coalesceFindRequests: true`\n       ```javascript\n      store.findRecord('comment', 1);\n      store.findRecord('comment', 2);\n      ```\n       will also send a request to: `GET /comments?filter[id]=1,2`\n       Note: Requests coalescing rely on URL building strategy. So if you override `buildURL` in your app\n      `groupRecordsForFindMany` more likely should be overridden as well in order for coalescing to work.\n       @property coalesceFindRequests\n      @type {boolean}\n    */\n    coalesceFindRequests: false,\n\n    findMany(store, type, ids, snapshots) {\n      var url = this.buildURL(type.modelName, ids, snapshots, 'findMany');\n      return this.ajax(url, 'GET', {\n        data: {\n          filter: {\n            id: ids.join(',')\n          }\n        }\n      });\n    },\n\n    pathForType(modelName) {\n      var dasherized = Ember.String.dasherize(modelName);\n      return (0, _emberInflector.pluralize)(dasherized);\n    },\n\n    updateRecord(store, type, snapshot) {\n      var data = (0, _private.serializeIntoHash)(store, type, snapshot);\n      var url = this.buildURL(type.modelName, snapshot.id, snapshot, 'updateRecord');\n      return this.ajax(url, 'PATCH', {\n        data: data\n      });\n    }\n\n  });\n\n  var _default = JSONAPIAdapter;\n  _exports.default = _default;\n});","define(\"@ember-data/adapter/rest\", [\"exports\", \"@ember-data/adapter\", \"@ember-data/adapter/error\", \"@ember-data/adapter/-private\"], function (_exports, _adapter, _error, _private) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.fetchOptions = fetchOptions;\n  _exports.default = void 0;\n  var hasJQuery = typeof jQuery !== 'undefined';\n  var hasNajax = typeof najax !== 'undefined';\n  /**\n    The REST adapter allows your store to communicate with an HTTP server by\n    transmitting JSON via XHR. Most Ember.js apps that consume a JSON API\n    should use the REST adapter.\n  \n    This adapter is designed around the idea that the JSON exchanged with\n    the server should be conventional.\n  \n    ## Success and failure\n  \n    The REST adapter will consider a success any response with a status code\n    of the 2xx family (\"Success\"), as well as 304 (\"Not Modified\"). Any other\n    status code will be considered a failure.\n  \n    On success, the request promise will be resolved with the full response\n    payload.\n  \n    Failed responses with status code 422 (\"Unprocessable Entity\") will be\n    considered \"invalid\". The response will be discarded, except for the\n    `errors` key. The request promise will be rejected with a `InvalidError`.\n    This error object will encapsulate the saved `errors` value.\n  \n    Any other status codes will be treated as an \"adapter error\". The request\n    promise will be rejected, similarly to the \"invalid\" case, but with\n    an instance of `AdapterError` instead.\n  \n    ## JSON Structure\n  \n    The REST adapter expects the JSON returned from your server to follow\n    these conventions.\n  \n    ### Object Root\n  \n    The JSON payload should be an object that contains the record inside a\n    root property. For example, in response to a `GET` request for\n    `/posts/1`, the JSON should look like this:\n  \n    ```js\n    {\n      \"posts\": {\n        \"id\": 1,\n        \"title\": \"I'm Running to Reform the W3C's Tag\",\n        \"author\": \"Yehuda Katz\"\n      }\n    }\n    ```\n  \n    Similarly, in response to a `GET` request for `/posts`, the JSON should\n    look like this:\n  \n    ```js\n    {\n      \"posts\": [\n        {\n          \"id\": 1,\n          \"title\": \"I'm Running to Reform the W3C's Tag\",\n          \"author\": \"Yehuda Katz\"\n        },\n        {\n          \"id\": 2,\n          \"title\": \"Rails is omakase\",\n          \"author\": \"D2H\"\n        }\n      ]\n    }\n    ```\n  \n    Note that the object root can be pluralized for both a single-object response\n    and an array response: the REST adapter is not strict on this. Further, if the\n    HTTP server responds to a `GET` request to `/posts/1` (e.g. the response to a\n    `findRecord` query) with more than one object in the array, Ember Data will\n    only display the object with the matching ID.\n  \n    ### Conventional Names\n  \n    Attribute names in your JSON payload should be the camelCased versions of\n    the attributes in your Ember.js models.\n  \n    For example, if you have a `Person` model:\n  \n    ```app/models/person.js\n    import Model, { attr } from '@ember-data/model';\n  \n    export default Model.extend({\n      firstName: attr('string'),\n      lastName: attr('string'),\n      occupation: attr('string')\n    });\n    ```\n  \n    The JSON returned should look like this:\n  \n    ```js\n    {\n      \"people\": {\n        \"id\": 5,\n        \"firstName\": \"Zaphod\",\n        \"lastName\": \"Beeblebrox\",\n        \"occupation\": \"President\"\n      }\n    }\n    ```\n  \n    #### Relationships\n  \n    Relationships are usually represented by ids to the record in the\n    relationship. The related records can then be sideloaded in the\n    response under a key for the type.\n  \n    ```js\n    {\n      \"posts\": {\n        \"id\": 5,\n        \"title\": \"I'm Running to Reform the W3C's Tag\",\n        \"author\": \"Yehuda Katz\",\n        \"comments\": [1, 2]\n      },\n      \"comments\": [{\n        \"id\": 1,\n        \"author\": \"User 1\",\n        \"message\": \"First!\",\n      }, {\n        \"id\": 2,\n        \"author\": \"User 2\",\n        \"message\": \"Good Luck!\",\n      }]\n    }\n    ```\n  \n    If the records in the relationship are not known when the response\n    is serialized it's also possible to represent the relationship as a\n    URL using the `links` key in the response. Ember Data will fetch\n    this URL to resolve the relationship when it is accessed for the\n    first time.\n  \n    ```js\n    {\n      \"posts\": {\n        \"id\": 5,\n        \"title\": \"I'm Running to Reform the W3C's Tag\",\n        \"author\": \"Yehuda Katz\",\n        \"links\": {\n          \"comments\": \"/posts/5/comments\"\n        }\n      }\n    }\n    ```\n  \n    ### Errors\n  \n    If a response is considered a failure, the JSON payload is expected to include\n    a top-level key `errors`, detailing any specific issues. For example:\n  \n    ```js\n    {\n      \"errors\": {\n        \"msg\": \"Something went wrong\"\n      }\n    }\n    ```\n  \n    This adapter does not make any assumptions as to the format of the `errors`\n    object. It will simply be passed along as is, wrapped in an instance\n    of `InvalidError` or `AdapterError`. The serializer can interpret it\n    afterwards.\n  \n    ## Customization\n  \n    ### Endpoint path customization\n  \n    Endpoint paths can be prefixed with a `namespace` by setting the namespace\n    property on the adapter:\n  \n    ```app/adapters/application.js\n    import RESTAdapter from '@ember-data/adapter/rest';\n  \n    export default RESTAdapter.extend({\n      namespace: 'api/1'\n    });\n    ```\n    Requests for the `Person` model would now target `/api/1/people/1`.\n  \n    ### Host customization\n  \n    An adapter can target other hosts by setting the `host` property.\n  \n    ```app/adapters/application.js\n    import RESTAdapter from '@ember-data/adapter/rest';\n  \n    export default RESTAdapter.extend({\n      host: 'https://api.example.com'\n    });\n    ```\n  \n    ### Headers customization\n  \n    Some APIs require HTTP headers, e.g. to provide an API key. Arbitrary\n    headers can be set as key/value pairs on the `RESTAdapter`'s `headers`\n    object and Ember Data will send them along with each ajax request.\n  \n  \n    ```app/adapters/application.js\n    import RESTAdapter from '@ember-data/adapter/rest';\n    import { computed } from '@ember/object';\n  \n    export default RESTAdapter.extend({\n      headers: computed(function() {\n        return {\n          'API_KEY': 'secret key',\n          'ANOTHER_HEADER': 'Some header value'\n        };\n      }\n    });\n    ```\n  \n    `headers` can also be used as a computed property to support dynamic\n    headers. In the example below, the `session` object has been\n    injected into an adapter by Ember's container.\n  \n    ```app/adapters/application.js\n    import RESTAdapter from '@ember-data/adapter/rest';\n    import { computed } from '@ember/object';\n  \n    export default RESTAdapter.extend({\n      headers: computed('session.authToken', function() {\n        return {\n          'API_KEY': this.get('session.authToken'),\n          'ANOTHER_HEADER': 'Some header value'\n        };\n      })\n    });\n    ```\n  \n    In some cases, your dynamic headers may require data from some\n    object outside of Ember's observer system (for example\n    `document.cookie`). You can use the\n    [volatile](/api/classes/Ember.ComputedProperty.html?anchor=volatile)\n    function to set the property into a non-cached mode causing the headers to\n    be recomputed with every request.\n  \n    ```app/adapters/application.js\n    import RESTAdapter from '@ember-data/adapter/rest';\n    import { get } from '@ember/object';\n    import { computed } from '@ember/object';\n  \n    export default RESTAdapter.extend({\n      headers: computed(function() {\n        return {\n          'API_KEY': get(document.cookie.match(/apiKey\\=([^;]*)/), '1'),\n          'ANOTHER_HEADER': 'Some header value'\n        };\n      }).volatile()\n    });\n    ```\n  \n    @class RESTAdapter\n    @constructor\n    @extends Adapter\n    @uses BuildURLMixin\n  */\n\n  var RESTAdapter = _adapter.default.extend(_adapter.BuildURLMixin, {\n    defaultSerializer: '-rest',\n    _defaultContentType: 'application/json; charset=utf-8',\n    fastboot: Ember.computed({\n      // Avoid computed property override deprecation in fastboot as suggested by:\n      // https://deprecations.emberjs.com/v3.x/#toc_computed-property-override\n      get() {\n        if (this._fastboot) {\n          return this._fastboot;\n        }\n\n        return this._fastboot = Ember.getOwner(this).lookup('service:fastboot');\n      },\n\n      set(key, value) {\n        return this._fastboot = value;\n      }\n\n    }),\n    useFetch: Ember.computed(function () {\n      var ENV = Ember.getOwner(this).resolveRegistration('config:environment'); // TODO: https://github.com/emberjs/data/issues/6093\n\n      var jQueryIntegrationDisabled = ENV && ENV.EmberENV && ENV.EmberENV._JQUERY_INTEGRATION === false;\n\n      if (jQueryIntegrationDisabled) {\n        return true;\n      } else if (hasNajax || hasJQuery) {\n        return false;\n      } else {\n        return true;\n      }\n    }),\n\n    /**\n      By default, the RESTAdapter will send the query params sorted alphabetically to the\n      server.\n       For example:\n       ```js\n      store.query('posts', { sort: 'price', category: 'pets' });\n      ```\n       will generate a requests like this `/posts?category=pets&sort=price`, even if the\n      parameters were specified in a different order.\n       That way the generated URL will be deterministic and that simplifies caching mechanisms\n      in the backend.\n       Setting `sortQueryParams` to a falsey value will respect the original order.\n       In case you want to sort the query parameters with a different criteria, set\n      `sortQueryParams` to your custom sort function.\n       ```app/adapters/application.js\n      import RESTAdapter from '@ember-data/adapter/rest';\n       export default RESTAdapter.extend({\n        sortQueryParams(params) {\n          let sortedKeys = Object.keys(params).sort().reverse();\n          let len = sortedKeys.length, newParams = {};\n           for (let i = 0; i < len; i++) {\n            newParams[sortedKeys[i]] = params[sortedKeys[i]];\n          }\n           return newParams;\n        }\n      });\n      ```\n       @method sortQueryParams\n      @param {Object} obj\n      @return {Object}\n    */\n    sortQueryParams(obj) {\n      var keys = Object.keys(obj);\n      var len = keys.length;\n\n      if (len < 2) {\n        return obj;\n      }\n\n      var newQueryParams = {};\n      var sortedKeys = keys.sort();\n\n      for (var i = 0; i < len; i++) {\n        newQueryParams[sortedKeys[i]] = obj[sortedKeys[i]];\n      }\n\n      return newQueryParams;\n    },\n\n    /**\n      By default the RESTAdapter will send each find request coming from a `store.find`\n      or from accessing a relationship separately to the server. If your server supports passing\n      ids as a query string, you can set coalesceFindRequests to true to coalesce all find requests\n      within a single runloop.\n       For example, if you have an initial payload of:\n       ```javascript\n      {\n        post: {\n          id: 1,\n          comments: [1, 2]\n        }\n      }\n      ```\n       By default calling `post.get('comments')` will trigger the following requests(assuming the\n      comments haven't been loaded before):\n       ```\n      GET /comments/1\n      GET /comments/2\n      ```\n       If you set coalesceFindRequests to `true` it will instead trigger the following request:\n       ```\n      GET /comments?ids[]=1&ids[]=2\n      ```\n       Setting coalesceFindRequests to `true` also works for `store.find` requests and `belongsTo`\n      relationships accessed within the same runloop. If you set `coalesceFindRequests: true`\n       ```javascript\n      store.findRecord('comment', 1);\n      store.findRecord('comment', 2);\n      ```\n       will also send a request to: `GET /comments?ids[]=1&ids[]=2`\n       Note: Requests coalescing rely on URL building strategy. So if you override `buildURL` in your app\n      `groupRecordsForFindMany` more likely should be overridden as well in order for coalescing to work.\n       @property coalesceFindRequests\n      @type {boolean}\n    */\n    coalesceFindRequests: false,\n\n    /**\n      Endpoint paths can be prefixed with a `namespace` by setting the namespace\n      property on the adapter:\n       ```app/adapters/application.js\n      import RESTAdapter from '@ember-data/adapter/rest';\n       export default RESTAdapter.extend({\n        namespace: 'api/1'\n      });\n      ```\n       Requests for the `Post` model would now target `/api/1/post/`.\n       @property namespace\n      @type {String}\n    */\n\n    /**\n      An adapter can target other hosts by setting the `host` property.\n       ```app/adapters/application.js\n      import RESTAdapter from '@ember-data/adapter/rest';\n       export default RESTAdapter.extend({\n        host: 'https://api.example.com'\n      });\n      ```\n       Requests for the `Post` model would now target `https://api.example.com/post/`.\n       @property host\n      @type {String}\n    */\n\n    /**\n      Some APIs require HTTP headers, e.g. to provide an API\n      key. Arbitrary headers can be set as key/value pairs on the\n      `RESTAdapter`'s `headers` object and Ember Data will send them\n      along with each ajax request. For dynamic headers see [headers\n      customization](/ember-data/release/classes/RESTAdapter).\n       ```app/adapters/application.js\n      import RESTAdapter from '@ember-data/adapter/rest';\n      import { computed } from '@ember/object';\n       export default RESTAdapter.extend({\n        headers: computed(function() {\n          return {\n            'API_KEY': 'secret key',\n            'ANOTHER_HEADER': 'Some header value'\n          };\n        })\n      });\n      ```\n       @property headers\n      @type {Object}\n     */\n\n    /**\n      Called by the store in order to fetch the JSON for a given\n      type and ID.\n       The `findRecord` method makes an Ajax request to a URL computed by\n      `buildURL`, and returns a promise for the resulting payload.\n       This method performs an HTTP `GET` request with the id provided as part of the query string.\n       @since 1.13.0\n      @method findRecord\n      @param {Store} store\n      @param {Model} type\n      @param {String} id\n      @param {Snapshot} snapshot\n      @return {Promise} promise\n    */\n    findRecord(store, type, id, snapshot) {\n      var url = this.buildURL(type.modelName, id, snapshot, 'findRecord');\n      var query = this.buildQuery(snapshot);\n      return this.ajax(url, 'GET', {\n        data: query\n      });\n    },\n\n    /**\n      Called by the store in order to fetch a JSON array for all\n      of the records for a given type.\n       The `findAll` method makes an Ajax (HTTP GET) request to a URL computed by `buildURL`, and returns a\n      promise for the resulting payload.\n       @method findAll\n      @param {Store} store\n      @param {Model} type\n      @param {undefined} neverSet a value is never provided to this argument\n      @param {SnapshotRecordArray} snapshotRecordArray\n      @return {Promise} promise\n    */\n    findAll(store, type, sinceToken, snapshotRecordArray) {\n      var query = this.buildQuery(snapshotRecordArray);\n      var url = this.buildURL(type.modelName, null, snapshotRecordArray, 'findAll');\n\n      if (sinceToken) {\n        query.since = sinceToken;\n      }\n\n      return this.ajax(url, 'GET', {\n        data: query\n      });\n    },\n\n    /**\n      Called by the store in order to fetch a JSON array for\n      the records that match a particular query.\n       The `query` method makes an Ajax (HTTP GET) request to a URL\n      computed by `buildURL`, and returns a promise for the resulting\n      payload.\n       The `query` argument is a simple JavaScript object that will be passed directly\n      to the server as parameters.\n       @method query\n      @param {Store} store\n      @param {Model} type\n      @param {Object} query\n      @return {Promise} promise\n    */\n    query(store, type, query) {\n      var url = this.buildURL(type.modelName, null, null, 'query', query);\n\n      if (this.sortQueryParams) {\n        query = this.sortQueryParams(query);\n      }\n\n      return this.ajax(url, 'GET', {\n        data: query\n      });\n    },\n\n    /**\n      Called by the store in order to fetch a JSON object for\n      the record that matches a particular query.\n       The `queryRecord` method makes an Ajax (HTTP GET) request to a URL\n      computed by `buildURL`, and returns a promise for the resulting\n      payload.\n       The `query` argument is a simple JavaScript object that will be passed directly\n      to the server as parameters.\n       @since 1.13.0\n      @method queryRecord\n      @param {Store} store\n      @param {Model} type\n      @param {Object} query\n      @return {Promise} promise\n    */\n    queryRecord(store, type, query) {\n      var url = this.buildURL(type.modelName, null, null, 'queryRecord', query);\n\n      if (this.sortQueryParams) {\n        query = this.sortQueryParams(query);\n      }\n\n      return this.ajax(url, 'GET', {\n        data: query\n      });\n    },\n\n    /**\n      Called by the store in order to fetch several records together if `coalesceFindRequests` is true\n       For example, if the original payload looks like:\n       ```js\n      {\n        \"id\": 1,\n        \"title\": \"Rails is omakase\",\n        \"comments\": [ 1, 2, 3 ]\n      }\n      ```\n       The IDs will be passed as a URL-encoded Array of IDs, in this form:\n       ```\n      ids[]=1&ids[]=2&ids[]=3\n      ```\n       Many servers, such as Rails and PHP, will automatically convert this URL-encoded array\n      into an Array for you on the server-side. If you want to encode the\n      IDs, differently, just override this (one-line) method.\n       The `findMany` method makes an Ajax (HTTP GET) request to a URL computed by `buildURL`, and returns a\n      promise for the resulting payload.\n       @method findMany\n      @param {Store} store\n      @param {Model} type\n      @param {Array} ids\n      @param {Array} snapshots\n      @return {Promise} promise\n    */\n    findMany(store, type, ids, snapshots) {\n      var url = this.buildURL(type.modelName, ids, snapshots, 'findMany');\n      return this.ajax(url, 'GET', {\n        data: {\n          ids: ids\n        }\n      });\n    },\n\n    /**\n      Called by the store in order to fetch a JSON array for\n      the unloaded records in a has-many relationship that were originally\n      specified as a URL (inside of `links`).\n       For example, if your original payload looks like this:\n       ```js\n      {\n        \"post\": {\n          \"id\": 1,\n          \"title\": \"Rails is omakase\",\n          \"links\": { \"comments\": \"/posts/1/comments\" }\n        }\n      }\n      ```\n       This method will be called with the parent record and `/posts/1/comments`.\n       The `findHasMany` method will make an Ajax (HTTP GET) request to the originally specified URL.\n       The format of your `links` value will influence the final request URL via the `urlPrefix` method:\n       * Links beginning with `//`, `http://`, `https://`, will be used as is, with no further manipulation.\n       * Links beginning with a single `/` will have the current adapter's `host` value prepended to it.\n       * Links with no beginning `/` will have a parentURL prepended to it, via the current adapter's `buildURL`.\n       @method findHasMany\n      @param {Store} store\n      @param {Snapshot} snapshot\n      @param {String} url\n      @param {Object} relationship meta object describing the relationship\n      @return {Promise} promise\n    */\n    findHasMany(store, snapshot, url, relationship) {\n      var id = snapshot.id;\n      var type = snapshot.modelName;\n      url = this.urlPrefix(url, this.buildURL(type, id, snapshot, 'findHasMany'));\n      return this.ajax(url, 'GET');\n    },\n\n    /**\n      Called by the store in order to fetch the JSON for the unloaded record in a\n      belongs-to relationship that was originally specified as a URL (inside of\n      `links`).\n       For example, if your original payload looks like this:\n       ```js\n      {\n        \"person\": {\n          \"id\": 1,\n          \"name\": \"Tom Dale\",\n          \"links\": { \"group\": \"/people/1/group\" }\n        }\n      }\n      ```\n       This method will be called with the parent record and `/people/1/group`.\n       The `findBelongsTo` method will make an Ajax (HTTP GET) request to the originally specified URL.\n       The format of your `links` value will influence the final request URL via the `urlPrefix` method:\n       * Links beginning with `//`, `http://`, `https://`, will be used as is, with no further manipulation.\n       * Links beginning with a single `/` will have the current adapter's `host` value prepended to it.\n       * Links with no beginning `/` will have a parentURL prepended to it, via the current adapter's `buildURL`.\n       @method findBelongsTo\n      @param {Store} store\n      @param {Snapshot} snapshot\n      @param {String} url\n      @param {Object} relationship meta object describing the relationship\n      @return {Promise} promise\n    */\n    findBelongsTo(store, snapshot, url, relationship) {\n      var id = snapshot.id;\n      var type = snapshot.modelName;\n      url = this.urlPrefix(url, this.buildURL(type, id, snapshot, 'findBelongsTo'));\n      return this.ajax(url, 'GET');\n    },\n\n    /**\n      Called by the store when a newly created record is\n      saved via the `save` method on a model record instance.\n       The `createRecord` method serializes the record and makes an Ajax (HTTP POST) request\n      to a URL computed by `buildURL`.\n       See `serialize` for information on how to customize the serialized form\n      of a record.\n       @method createRecord\n      @param {Store} store\n      @param {Model} type\n      @param {Snapshot} snapshot\n      @return {Promise} promise\n    */\n    createRecord(store, type, snapshot) {\n      var url = this.buildURL(type.modelName, null, snapshot, 'createRecord');\n      var data = (0, _private.serializeIntoHash)(store, type, snapshot);\n      return this.ajax(url, 'POST', {\n        data\n      });\n    },\n\n    /**\n      Called by the store when an existing record is saved\n      via the `save` method on a model record instance.\n       The `updateRecord` method serializes the record and makes an Ajax (HTTP PUT) request\n      to a URL computed by `buildURL`.\n       See `serialize` for information on how to customize the serialized form\n      of a record.\n       @method updateRecord\n      @param {Store} store\n      @param {Model} type\n      @param {Snapshot} snapshot\n      @return {Promise} promise\n    */\n    updateRecord(store, type, snapshot) {\n      var data = (0, _private.serializeIntoHash)(store, type, snapshot, {});\n      var id = snapshot.id;\n      var url = this.buildURL(type.modelName, id, snapshot, 'updateRecord');\n      return this.ajax(url, 'PUT', {\n        data\n      });\n    },\n\n    /**\n      Called by the store when a record is deleted.\n       The `deleteRecord` method  makes an Ajax (HTTP DELETE) request to a URL computed by `buildURL`.\n       @method deleteRecord\n      @param {Store} store\n      @param {Model} type\n      @param {Snapshot} snapshot\n      @return {Promise} promise\n    */\n    deleteRecord(store, type, snapshot) {\n      var id = snapshot.id;\n      return this.ajax(this.buildURL(type.modelName, id, snapshot, 'deleteRecord'), 'DELETE');\n    },\n\n    _stripIDFromURL(store, snapshot) {\n      var url = this.buildURL(snapshot.modelName, snapshot.id, snapshot);\n      var expandedURL = url.split('/'); // Case when the url is of the format ...something/:id\n      // We are decodeURIComponent-ing the lastSegment because if it represents\n      // the id, it has been encodeURIComponent-ified within `buildURL`. If we\n      // don't do this, then records with id having special characters are not\n      // coalesced correctly (see GH #4190 for the reported bug)\n\n      var lastSegment = expandedURL[expandedURL.length - 1];\n      var id = snapshot.id;\n\n      if (decodeURIComponent(lastSegment) === id) {\n        expandedURL[expandedURL.length - 1] = '';\n      } else if (endsWith(lastSegment, '?id=' + id)) {\n        //Case when the url is of the format ...something?id=:id\n        expandedURL[expandedURL.length - 1] = lastSegment.substring(0, lastSegment.length - id.length - 1);\n      }\n\n      return expandedURL.join('/');\n    },\n\n    // http://stackoverflow.com/questions/417142/what-is-the-maximum-length-of-a-url-in-different-browsers\n    maxURLLength: 2048,\n\n    /**\n      Organize records into groups, each of which is to be passed to separate\n      calls to `findMany`.\n       This implementation groups together records that have the same base URL but\n      differing ids. For example `/comments/1` and `/comments/2` will be grouped together\n      because we know findMany can coalesce them together as `/comments?ids[]=1&ids[]=2`\n       It also supports urls where ids are passed as a query param, such as `/comments?id=1`\n      but not those where there is more than 1 query param such as `/comments?id=2&name=David`\n      Currently only the query param of `id` is supported. If you need to support others, please\n      override this or the `_stripIDFromURL` method.\n       It does not group records that have differing base urls, such as for example: `/posts/1/comments/2`\n      and `/posts/2/comments/3`\n       @method groupRecordsForFindMany\n      @param {Store} store\n      @param {Array} snapshots\n      @return {Array}  an array of arrays of records, each of which is to be\n                        loaded separately by `findMany`.\n    */\n    groupRecordsForFindMany(store, snapshots) {\n      var groups = new Map();\n      var adapter = this;\n      var maxURLLength = this.maxURLLength;\n      snapshots.forEach(snapshot => {\n        var baseUrl = adapter._stripIDFromURL(store, snapshot);\n\n        if (!groups.has(baseUrl)) {\n          groups.set(baseUrl, []);\n        }\n\n        groups.get(baseUrl).push(snapshot);\n      });\n\n      function splitGroupToFitInUrl(group, maxURLLength, paramNameLength) {\n        var idsSize = 0;\n\n        var baseUrl = adapter._stripIDFromURL(store, group[0]);\n\n        var splitGroups = [[]];\n        group.forEach(snapshot => {\n          var additionalLength = encodeURIComponent(snapshot.id).length + paramNameLength;\n\n          if (baseUrl.length + idsSize + additionalLength >= maxURLLength) {\n            idsSize = 0;\n            splitGroups.push([]);\n          }\n\n          idsSize += additionalLength;\n          var lastGroupIndex = splitGroups.length - 1;\n          splitGroups[lastGroupIndex].push(snapshot);\n        });\n        return splitGroups;\n      }\n\n      var groupsArray = [];\n      groups.forEach((group, key) => {\n        var paramNameLength = '&ids%5B%5D='.length;\n        var splitGroups = splitGroupToFitInUrl(group, maxURLLength, paramNameLength);\n        splitGroups.forEach(splitGroup => groupsArray.push(splitGroup));\n      });\n      return groupsArray;\n    },\n\n    /**\n      Takes an ajax response, and returns the json payload or an error.\n       By default this hook just returns the json payload passed to it.\n      You might want to override it in two cases:\n       1. Your API might return useful results in the response headers.\n      Response headers are passed in as the second argument.\n       2. Your API might return errors as successful responses with status code\n      200 and an Errors text or object. You can return a `InvalidError` or a\n      `AdapterError` (or a sub class) from this hook and it will automatically\n      reject the promise and put your record into the invalid or error state.\n       Returning a `InvalidError` from this method will cause the\n      record to transition into the `invalid` state and make the\n      `errors` object available on the record. When returning an\n      `InvalidError` the store will attempt to normalize the error data\n      returned from the server using the serializer's `extractErrors`\n      method.\n       @since 1.13.0\n      @method handleResponse\n      @param  {Number} status\n      @param  {Object} headers\n      @param  {Object} payload\n      @param  {Object} requestData - the original request information\n      @return {Object | AdapterError} response\n    */\n    handleResponse(status, headers, payload, requestData) {\n      if (this.isSuccess(status, headers, payload)) {\n        return payload;\n      } else if (this.isInvalid(status, headers, payload)) {\n        return new _error.InvalidError(payload.errors);\n      }\n\n      var errors = this.normalizeErrorResponse(status, headers, payload);\n      var detailedMessage = this.generatedDetailedMessage(status, headers, payload, requestData);\n\n      switch (status) {\n        case 401:\n          return new _error.UnauthorizedError(errors, detailedMessage);\n\n        case 403:\n          return new _error.ForbiddenError(errors, detailedMessage);\n\n        case 404:\n          return new _error.NotFoundError(errors, detailedMessage);\n\n        case 409:\n          return new _error.ConflictError(errors, detailedMessage);\n\n        default:\n          if (status >= 500) {\n            return new _error.ServerError(errors, detailedMessage);\n          }\n\n      }\n\n      return new _error.default(errors, detailedMessage);\n    },\n\n    /**\n      Default `handleResponse` implementation uses this hook to decide if the\n      response is a success.\n       @since 1.13.0\n      @method isSuccess\n      @param  {Number} status\n      @param  {Object} headers\n      @param  {Object} payload\n      @return {Boolean}\n    */\n    isSuccess(status, headers, payload) {\n      return status >= 200 && status < 300 || status === 304;\n    },\n\n    /**\n      Default `handleResponse` implementation uses this hook to decide if the\n      response is an invalid error.\n       @since 1.13.0\n      @method isInvalid\n      @param  {Number} status\n      @param  {Object} headers\n      @param  {Object} payload\n      @return {Boolean}\n    */\n    isInvalid(status, headers, payload) {\n      return status === 422;\n    },\n\n    /**\n      Takes a URL, an HTTP method and a hash of data, and makes an\n      HTTP request.\n       When the server responds with a payload, Ember Data will call into `extractSingle`\n      or `extractArray` (depending on whether the original query was for one record or\n      many records).\n       By default, `ajax` method has the following behavior:\n       * It sets the response `dataType` to `\"json\"`\n      * If the HTTP method is not `\"GET\"`, it sets the `Content-Type` to be\n        `application/json; charset=utf-8`\n      * If the HTTP method is not `\"GET\"`, it stringifies the data passed in. The\n        data is the serialized record in the case of a save.\n      * Registers success and failure handlers.\n       @method ajax\n      @private\n      @param {String} url\n      @param {String} type The request type GET, POST, PUT, DELETE etc.\n      @param {Object} options\n      @return {Promise} promise\n    */\n    ajax(url, type, options) {\n      var adapter = this;\n      var useFetch = Ember.get(this, 'useFetch');\n      var requestData = {\n        url: url,\n        method: type\n      };\n      var hash = adapter.ajaxOptions(url, type, options);\n\n      if (useFetch) {\n        var _response;\n\n        return this._fetchRequest(hash).then(response => {\n          _response = response;\n          return (0, _private.determineBodyPromise)(response, requestData);\n        }).then(payload => {\n          if (_response.ok && !(payload instanceof Error)) {\n            return fetchSuccessHandler(adapter, payload, _response, requestData);\n          } else {\n            throw fetchErrorHandler(adapter, payload, _response, null, requestData);\n          }\n        });\n      }\n\n      return new Ember.RSVP.Promise(function (resolve, reject) {\n        hash.success = function (payload, textStatus, jqXHR) {\n          var response = ajaxSuccessHandler(adapter, payload, jqXHR, requestData);\n          Ember.run.join(null, resolve, response);\n        };\n\n        hash.error = function (jqXHR, textStatus, errorThrown) {\n          var error = ajaxErrorHandler(adapter, jqXHR, errorThrown, requestData);\n          Ember.run.join(null, reject, error);\n        };\n\n        adapter._ajax(hash);\n      }, 'DS: RESTAdapter#ajax ' + type + ' to ' + url);\n    },\n\n    /**\n      @method _ajaxRequest\n      @private\n      @param {Object} options jQuery ajax options to be used for the ajax request\n    */\n    _ajaxRequest(options) {\n      jQuery.ajax(options);\n    },\n\n    /**\n      @method _najaxRequest\n      @private\n      @param {Object} options jQuery ajax options to be used for the najax request\n    */\n    _najaxRequest(options) {\n      if (hasNajax) {\n        najax(options);\n      } else {\n        throw new Error('najax does not seem to be defined in your app. Did you override it via `addOrOverrideSandboxGlobals` in the fastboot server?');\n      }\n    },\n\n    _fetchRequest(options) {\n      var fetchFunction = (0, _private.fetch)();\n\n      if (fetchFunction) {\n        return fetchFunction(options.url, options);\n      } else {\n        throw new Error('cannot find the `fetch` module or the `fetch` global. Did you mean to install the `ember-fetch` addon?');\n      }\n    },\n\n    _ajax(options) {\n      if (Ember.get(this, 'useFetch')) {\n        this._fetchRequest(options);\n      } else if (Ember.get(this, 'fastboot.isFastBoot')) {\n        this._najaxRequest(options);\n      } else {\n        this._ajaxRequest(options);\n      }\n    },\n\n    /**\n      @method ajaxOptions\n      @private\n      @param {String} url\n      @param {String} type The request type GET, POST, PUT, DELETE etc.\n      @param {Object} options\n      @return {Object}\n    */\n    ajaxOptions(url, method, options) {\n      options = Ember.assign({\n        url,\n        method,\n        type: method\n      }, options);\n      var headers = Ember.get(this, 'headers');\n\n      if (headers !== undefined) {\n        options.headers = Ember.assign({}, headers, options.headers);\n      } else if (!options.headers) {\n        options.headers = {};\n      }\n\n      var contentType = options.contentType || this._defaultContentType;\n\n      if (Ember.get(this, 'useFetch')) {\n        if (options.data && options.type !== 'GET') {\n          if (!options.headers['Content-Type'] && !options.headers['content-type']) {\n            options.headers['content-type'] = contentType;\n          }\n        }\n\n        options = fetchOptions(options, this);\n      } else {\n        // GET requests without a body should not have a content-type header\n        // and may be unexpected by a server\n        if (options.data && options.type !== 'GET') {\n          options = Ember.assign(options, {\n            contentType\n          });\n        }\n\n        options = ajaxOptions(options, this);\n      }\n\n      options.url = this._ajaxURL(options.url);\n      return options;\n    },\n\n    _ajaxURL(url) {\n      if (Ember.get(this, 'fastboot.isFastBoot')) {\n        var httpRegex = /^https?:\\/\\//;\n        var protocolRelativeRegex = /^\\/\\//;\n        var protocol = Ember.get(this, 'fastboot.request.protocol');\n        var host = Ember.get(this, 'fastboot.request.host');\n\n        if (protocolRelativeRegex.test(url)) {\n          return `${protocol}${url}`;\n        } else if (!httpRegex.test(url)) {\n          try {\n            return `${protocol}//${host}${url}`;\n          } catch (fbError) {\n            throw new Error('You are using Ember Data with no host defined in your adapter. This will attempt to use the host of the FastBoot request, which is not configured for the current host of this request. Please set the hostAllowList property for in your environment.js. FastBoot Error: ' + fbError.message);\n          }\n        }\n      }\n\n      return url;\n    },\n\n    /**\n      @method parseErrorResponse\n      @private\n      @param {String} responseText\n      @return {Object}\n    */\n    parseErrorResponse(responseText) {\n      var json = responseText;\n\n      try {\n        json = JSON.parse(responseText);\n      } catch (e) {// ignored\n      }\n\n      return json;\n    },\n\n    /**\n      @method normalizeErrorResponse\n      @private\n      @param  {Number} status\n      @param  {Object} headers\n      @param  {Object} payload\n      @return {Array} errors payload\n    */\n    normalizeErrorResponse(status, headers, payload) {\n      if (payload && typeof payload === 'object' && payload.errors) {\n        return payload.errors;\n      } else {\n        return [{\n          status: `${status}`,\n          title: 'The backend responded with an error',\n          detail: `${payload}`\n        }];\n      }\n    },\n\n    /**\n      Generates a detailed (\"friendly\") error message, with plenty\n      of information for debugging (good luck!)\n       @method generatedDetailedMessage\n      @private\n      @param  {Number} status\n      @param  {Object} headers\n      @param  {Object} payload\n      @param  {Object} requestData\n      @return {String} detailed error message\n    */\n    generatedDetailedMessage: function (status, headers, payload, requestData) {\n      var shortenedPayload;\n      var payloadContentType = headers['content-type'] || 'Empty Content-Type';\n\n      if (payloadContentType === 'text/html' && payload.length > 250) {\n        shortenedPayload = '[Omitted Lengthy HTML]';\n      } else {\n        shortenedPayload = payload;\n      }\n\n      var requestDescription = requestData.method + ' ' + requestData.url;\n      var payloadDescription = 'Payload (' + payloadContentType + ')';\n      return ['Ember Data Request ' + requestDescription + ' returned a ' + status, payloadDescription, shortenedPayload].join('\\n');\n    },\n\n    // @since 2.5.0\n    buildQuery(snapshot) {\n      var query = {};\n\n      if (snapshot) {\n        var {\n          include\n        } = snapshot;\n\n        if (include) {\n          query.include = include;\n        }\n      }\n\n      return query;\n    }\n\n  });\n\n  function ajaxSuccess(adapter, payload, requestData, responseData) {\n    var response;\n\n    try {\n      response = adapter.handleResponse(responseData.status, responseData.headers, payload, requestData);\n    } catch (error) {\n      return Ember.RSVP.Promise.reject(error);\n    }\n\n    if (response && response.isAdapterError) {\n      return Ember.RSVP.Promise.reject(response);\n    } else {\n      return response;\n    }\n  }\n\n  function ajaxError(adapter, payload, requestData, responseData) {\n    var error;\n\n    if (responseData.errorThrown instanceof Error && payload !== '') {\n      error = responseData.errorThrown;\n    } else if (responseData.textStatus === 'timeout') {\n      error = new _error.TimeoutError();\n    } else if (responseData.textStatus === 'abort' || responseData.status === 0) {\n      error = handleAbort(requestData, responseData);\n    } else {\n      try {\n        error = adapter.handleResponse(responseData.status, responseData.headers, payload || responseData.errorThrown, requestData);\n      } catch (e) {\n        error = e;\n      }\n    }\n\n    return error;\n  } // Adapter abort error to include any relevent info, e.g. request/response:\n\n\n  function handleAbort(requestData, responseData) {\n    var {\n      method,\n      url,\n      errorThrown\n    } = requestData;\n    var {\n      status\n    } = responseData;\n    var msg = `Request failed: ${method} ${url} ${errorThrown || ''}`;\n    var errors = [{\n      title: 'Adapter Error',\n      detail: msg.trim(),\n      status\n    }];\n    return new _error.AbortError(errors);\n  } //From http://stackoverflow.com/questions/280634/endswith-in-javascript\n\n\n  function endsWith(string, suffix) {\n    if (typeof String.prototype.endsWith !== 'function') {\n      return string.indexOf(suffix, string.length - suffix.length) !== -1;\n    } else {\n      return string.endsWith(suffix);\n    }\n  }\n\n  function fetchSuccessHandler(adapter, payload, response, requestData) {\n    var responseData = fetchResponseData(response);\n    return ajaxSuccess(adapter, payload, requestData, responseData);\n  }\n\n  function fetchErrorHandler(adapter, payload, response, errorThrown, requestData) {\n    var responseData = fetchResponseData(response);\n\n    if (responseData.status === 200 && payload instanceof Error) {\n      responseData.errorThrown = payload;\n      payload = responseData.errorThrown.payload;\n    } else {\n      responseData.errorThrown = errorThrown;\n      payload = adapter.parseErrorResponse(payload);\n    }\n\n    return ajaxError(adapter, payload, requestData, responseData);\n  }\n\n  function ajaxSuccessHandler(adapter, payload, jqXHR, requestData) {\n    var responseData = ajaxResponseData(jqXHR);\n    return ajaxSuccess(adapter, payload, requestData, responseData);\n  }\n\n  function ajaxErrorHandler(adapter, jqXHR, errorThrown, requestData) {\n    var responseData = ajaxResponseData(jqXHR);\n    responseData.errorThrown = errorThrown;\n    var payload = adapter.parseErrorResponse(jqXHR.responseText);\n\n    if (true\n    /* DEBUG */\n    ) {\n      var message = `The server returned an empty string for ${requestData.method} ${requestData.url}, which cannot be parsed into a valid JSON. Return either null or {}.`;\n      var validJSONString = !(responseData.textStatus === 'parsererror' && payload === '');\n      (true && Ember.warn(message, validJSONString, {\n        id: 'ds.adapter.returned-empty-string-as-JSON'\n      }));\n    }\n\n    return ajaxError(adapter, payload, requestData, responseData);\n  }\n\n  function fetchResponseData(response) {\n    return {\n      status: response.status,\n      textStatus: response.textStatus,\n      headers: headersToObject(response.headers)\n    };\n  }\n\n  function ajaxResponseData(jqXHR) {\n    return {\n      status: jqXHR.status,\n      textStatus: jqXHR.statusText,\n      headers: (0, _private.parseResponseHeaders)(jqXHR.getAllResponseHeaders())\n    };\n  }\n\n  function headersToObject(headers) {\n    var headersObject = {};\n\n    if (headers) {\n      headers.forEach((value, key) => headersObject[key] = value);\n    }\n\n    return headersObject;\n  }\n  /**\n   * Helper function that translates the options passed to `jQuery.ajax` into a format that `fetch` expects.\n   * @param {Object} _options\n   * @param {Adapter} adapter\n   * @returns {Object}\n   */\n\n\n  function fetchOptions(options, adapter) {\n    options.credentials = 'same-origin';\n\n    if (options.data) {\n      // GET and HEAD requests can't have a `body`\n      if (options.method === 'GET' || options.method === 'HEAD') {\n        // If no options are passed, Ember Data sets `data` to an empty object, which we test for.\n        if (Object.keys(options.data).length) {\n          // Test if there are already query params in the url (mimics jQuey.ajax).\n          var queryParamDelimiter = options.url.indexOf('?') > -1 ? '&' : '?';\n          options.url += `${queryParamDelimiter}${(0, _private.serializeQueryParams)(options.data)}`;\n        }\n      } else {\n        // NOTE: a request's body cannot be an object, so we stringify it if it is.\n        // JSON.stringify removes keys with values of `undefined` (mimics jQuery.ajax).\n        // If the data is not a POJO (it's a String, FormData, etc), we just set it.\n        // If the data is a string, we assume it's a stringified object.\n\n        /* We check for Objects this way because we want the logic inside the consequent to run\n         * if `options.data` is a POJO, not if it is a data structure whose `typeof` returns \"object\"\n         * when it's not (Array, FormData, etc). The reason we don't use `options.data.constructor`\n         * to check is in case `data` is an object with no prototype (e.g. created with null).\n         */\n        if (Object.prototype.toString.call(options.data) === '[object Object]') {\n          options.body = JSON.stringify(options.data);\n        } else {\n          options.body = options.data;\n        }\n      }\n    }\n\n    return options;\n  }\n\n  function ajaxOptions(options, adapter) {\n    options.dataType = 'json';\n    options.context = adapter;\n\n    if (options.data && options.type !== 'GET') {\n      options.data = JSON.stringify(options.data);\n    }\n\n    options.beforeSend = function (xhr) {\n      Object.keys(options.headers).forEach(key => xhr.setRequestHeader(key, options.headers[key]));\n    };\n\n    return options;\n  }\n\n  var _default = RESTAdapter;\n  _exports.default = _default;\n});","define(\"@ember-data/canary-features/default-features\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n   * ## Canary Features\n   *\n   * EmberData allows users to test features that are implemented but not yet\n   * available even in canary.\n   *\n   * Typically these features represent work that might introduce a new concept,\n   * new API, change an API, or risk an unintended change in behavior to consuming\n   * applications.\n   *\n   * Such features have their implementations guarded by a \"feature flag\", and the\n   * flag is only activated once the core-data team is prepared to ship the work\n   * in a canary release.\n   *\n   * ### Installing Canary\n   *\n   * To test a feature you MUST be using a canary build. Canary builds are published\n   * to `npm` and can be installed using a precise tag (such as `ember-data@3.16.0-alpha.1`)\n   * or by installing the latest dist-tag published to the `canary` channel.\n   *\n   * *Using `npm` to install the latest canary*\n   *\n   * ```cli\n   * npm install --save-dev ember-data@canary\n   * ```\n   *\n   * *Using `yarn` to install the latest canary*\n   *\n   * ```cli\n   * yarn add ember-data@canary\n   * ```\n   *\n   * ### Activating a Canary Feature\n   *\n   * Once you have installed canary, feature-flags can be activated at build-time by an environment\n   * variable or at runtime using `window.EmberDataENV`.\n   *\n   * The \"off\" branch of feature-flagged code is always stripped from production builds, so you\n   * MUST use the build-time environment variable to activate a flag if testing production.\n   *\n   * The list of available feature-flags is located [here](https://github.com/emberjs/data/tree/master/packages/canary-features/addon/default-features.ts \"List of EmberData FeatureFlags\")\n   *\n   * #### Runtime Configuration\n   *\n   * To configure feature-flags at runtime you will want to configure `window.EmberDataENV = {}` appropriately.\n   * You should add this global property in your app prior to your application booting. At the top of\n   * your `app.js` file is a convenient location, as is within ` index.html` as a script running prior\n   * to loading any other scripts.\n   *\n   * *Example activating a single feature flags*\n   *\n   * ```js\n   * window.EmberDataENV = {\n   *   FEATURES: {\n   *     RECORD_DATA_ERRORS: true,\n   *   }\n   * }\n   * ```\n   *\n   * *Example activating multiple feature flags*\n   *\n   * ```js\n   * window.EmberDataENV = {\n   *   FEATURES: {\n   *     RECORD_DATA_ERRORS: true,\n   *     RECORD_DATA_STATE: true,\n   *   }\n   * }\n   * ```\n   *\n   * *Example activating all feature flags*\n   *\n   * ```js\n   * window.EmberDataENV = {\n   *   ENABLE_OPTIONAL_FEATURES: true\n   * }\n   * ```\n   *\n   * #### Build Time Configuration\n   *\n   * *Example activating a single feature flags*\n   *\n   * ```js\n   * EMBER_DATA_FEATURE_OVERRIDE=REQUEST_SERVICE ember build\n   * ```\n   *\n   * *Example activating multiple feature flags*\n   *\n   * ```js\n   * EMBER_DATA_FEATURE_OVERRIDE=REQUEST_SERVICE,CUSTOM_MODEL_CLASS ember build\n   * ```\n   *\n   * *Example activating all feature flags*\n   *\n   * ```js\n   * EMBER_DATA_FEATURE_OVERRIDE=ENABLE_ALL_OPTIONAL ember build\n   * ```\n   *\n   * ### Preparing an Addon to use a Canary Feature\n   *\n   * For most addons and most features simple version detection should be\n   * enough. Using the provided version compatibility helpers from\n   * [ember-compatibility-helpers](https://github.com/pzuraq/ember-compatibility-helpers)\n   * the following can be done:\n   *\n   * ```js\n   * if (gte('@ember-data/store', '3.12.0')) {\n   *\n   * } else {\n   *\n   * }\n   * ```\n   *\n   * For addons needing more advanced detection [babel-plugin-debug-macros](https://github.com/ember-cli/babel-plugin-debug-macros)\n   * can be leveraged to provide code-stripping based on feature presence. For example in your addon's `index.js`:\n   *\n   * ```js\n   * function debugMacros(features) {\n   *   let plugins = [\n   *     [\n   *       require.resolve('babel-plugin-debug-macros'),\n   *       {\n   *         flags: [\n   *           {\n   *             source: '<addon-name>/feature-flags',\n   *             flags: features,\n   *           },\n   *         ],\n   *       },\n   *       '<addon-name>/canary-features-stripping',\n   *     ],\n   *   ];\n   *\n   *   return plugins;\n   * }\n   *\n   * module.exports = {\n   *   name: '<addon-name>',\n   *\n   *   init() {\n   *     this._super.init.apply(this, arguments);\n   *\n   *     let features;\n   *     try {\n   *       features = this.project.require('@ember-data/private-build-infra/src/features')();\n   *     } catch (e) {\n   *       features = { CUSTOM_MODEL_CLASS: false };\n   *     }\n   *\n   *     this.options = this.options || {};\n   *     this.options.babel = this.options.babel || {};\n   *     // this ensures that the same `@ember-data/canary-features` processing that the various\n   *     // ember-data addons do is done for this addon\n   *     this.options.babel.plugins = [...debugMacros(features)];\n   *   }\n   * }\n   * ```\n   *\n   * @module @ember-data/canary-features\n   * @main @ember-data/canary-features\n   */\n\n  /*\n    This list of features is used both at build time (by `@ember-data/private-build-infra`)\n    and at runtime (by `@ember-data/canary-features`).\n  \n    The valid values are:\n  \n    - true - The feature is enabled at all times, and cannot be disabled.\n    - false - The feature is disabled at all times, and cannot be enabled.\n    - null - The feature is disabled by default, but can be enabled at runtime via `EmberDataENV`.\n  */\n  var _default = {\n    SAMPLE_FEATURE_FLAG: null,\n    RECORD_DATA_ERRORS: null,\n    RECORD_DATA_STATE: null,\n    IDENTIFIERS: true,\n    REQUEST_SERVICE: null,\n    CUSTOM_MODEL_CLASS: null,\n    FULL_LINKS_ON_RELATIONSHIPS: true\n  };\n  _exports.default = _default;\n});","define(\"@ember-data/canary-features/index\", [\"exports\", \"@ember-data/canary-features/default-features\"], function (_exports, _defaultFeatures) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.FULL_LINKS_ON_RELATIONSHIPS = _exports.CUSTOM_MODEL_CLASS = _exports.IDENTIFIERS = _exports.REQUEST_SERVICE = _exports.RECORD_DATA_STATE = _exports.RECORD_DATA_ERRORS = _exports.SAMPLE_FEATURE_FLAG = _exports.FEATURES = void 0;\n  const ENV = typeof EmberDataENV !== 'undefined' && EmberDataENV !== null ? EmberDataENV : {};\n\n  function featureValue(value) {\n    if (ENV.ENABLE_OPTIONAL_FEATURES && value === null) {\n      return true;\n    }\n\n    return value;\n  }\n\n  const FEATURES = Ember.assign({}, _defaultFeatures.default, ENV.FEATURES);\n  _exports.FEATURES = FEATURES;\n  const SAMPLE_FEATURE_FLAG = featureValue(FEATURES.SAMPLE_FEATURE_FLAG);\n  _exports.SAMPLE_FEATURE_FLAG = SAMPLE_FEATURE_FLAG;\n  const RECORD_DATA_ERRORS = featureValue(FEATURES.RECORD_DATA_ERRORS);\n  _exports.RECORD_DATA_ERRORS = RECORD_DATA_ERRORS;\n  const RECORD_DATA_STATE = featureValue(FEATURES.RECORD_DATA_STATE);\n  _exports.RECORD_DATA_STATE = RECORD_DATA_STATE;\n  const REQUEST_SERVICE = featureValue(FEATURES.REQUEST_SERVICE);\n  _exports.REQUEST_SERVICE = REQUEST_SERVICE;\n  const IDENTIFIERS = featureValue(FEATURES.IDENTIFIERS);\n  _exports.IDENTIFIERS = IDENTIFIERS;\n  const CUSTOM_MODEL_CLASS = featureValue(FEATURES.CUSTOM_MODEL_CLASS);\n  _exports.CUSTOM_MODEL_CLASS = CUSTOM_MODEL_CLASS;\n  const FULL_LINKS_ON_RELATIONSHIPS = featureValue(FEATURES.FULL_LINKS_ON_RELATIONSHIPS);\n  _exports.FULL_LINKS_ON_RELATIONSHIPS = FULL_LINKS_ON_RELATIONSHIPS;\n});","define(\"@ember-data/debug/index\", [\"exports\", \"@ember-data/debug/setup\"], function (_exports, _setup) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n    Implements `@ember/debug/data-adapter` with for EmberData\n    integration with the ember-inspector.\n  \n    @class InspectorDataAdapter\n    @extends DataAdapter\n    @private\n  */\n  var _default = Ember.DataAdapter.extend({\n    store: Ember.inject.service('store'),\n\n    /**\n      Specifies how records can be filtered based on the state of the record\n      Records returned will need to have a `filterValues`\n      property with a key for every name in the returned array\n       @method getFilters\n      @private\n      @return {Array} List of objects defining filters\n       The object should have a `name` and `desc` property\n    */\n    getFilters() {\n      return [{\n        name: 'isNew',\n        desc: 'New'\n      }, {\n        name: 'isModified',\n        desc: 'Modified'\n      }, {\n        name: 'isClean',\n        desc: 'Clean'\n      }];\n    },\n\n    _nameToClass(type) {\n      return Ember.get(this, 'store').modelFor(type);\n    },\n\n    /**\n      Fetch the model types and observe them for changes.\n      Maintains the list of model types without needing the Model package for detection.\n       @method watchModelTypes\n      @public\n      @param {Function} typesAdded Callback to call to add types.\n      Takes an array of objects containing wrapped types (returned from `wrapModelType`).\n      @param {Function} typesUpdated Callback to call when a type has changed.\n      Takes an array of objects containing wrapped types.\n      @return {Function} Method to call to remove all observers\n    */\n    watchModelTypes(typesAdded, typesUpdated) {\n      var store = Ember.get(this, 'store');\n      var __createRecordData = store._createRecordData;\n      var _releaseMethods = [];\n      var discoveredTypes = (0, _setup.typesMapFor)(store); // Add any models that were added during initialization of the app, before the inspector was opened\n\n      discoveredTypes.forEach((_, type) => {\n        this.watchTypeIfUnseen(store, discoveredTypes, type, typesAdded, typesUpdated, _releaseMethods);\n      }); // Overwrite _createRecordData so newly added models will get added to the list\n\n      store._createRecordData = identifier => {\n        this.watchTypeIfUnseen(store, discoveredTypes, identifier.type, typesAdded, typesUpdated, _releaseMethods);\n        return __createRecordData.call(store, identifier);\n      };\n\n      var release = () => {\n        _releaseMethods.forEach(fn => fn());\n\n        store._createRecordData = __createRecordData; // reset the list so the models can be added if the inspector is re-opened\n        // the entries are set to false instead of removed, since the models still exist in the app\n        // we just need the inspector to become aware of them\n\n        discoveredTypes.forEach((value, key) => {\n          discoveredTypes.set(key, false);\n        });\n        this.releaseMethods.removeObject(release);\n      };\n\n      this.releaseMethods.pushObject(release);\n      return release;\n    },\n\n    /**\n     * Loop over the discovered types and use the callbacks from watchModelTypes to notify\n     * the consumer of this adapter about the mdoels.\n     *\n     * @param {store} store\n     * @internal\n     * @param {Map} discoveredTypes\n     * @param {String} type\n     * @param {Function} typesAdded\n     * @param {Function} typesUpdated\n     * @param {Array} releaseMethods\n     */\n    watchTypeIfUnseen(store, discoveredTypes, type, typesAdded, typesUpdated, releaseMethods) {\n      if (discoveredTypes.get(type) !== true) {\n        var klass = store.modelFor(type);\n        var wrapped = this.wrapModelType(klass, type);\n        releaseMethods.push(this.observeModelType(type, typesUpdated));\n        typesAdded([wrapped]);\n        discoveredTypes.set(type, true);\n      }\n    },\n\n    /**\n      Creates a human readable string used for column headers\n       @method columnNameToDesc\n      @private\n      @param {String} name The attribute name\n      @return {String} Human readable string based on the attribute name\n    */\n    columnNameToDesc(name) {\n      return Ember.String.capitalize(Ember.String.underscore(name).replace(/_/g, ' ').trim());\n    },\n\n    /**\n      Get the columns for a given model type\n       @method columnsForType\n      @private\n      @param {Model} typeClass\n      @return {Array} An array of columns of the following format:\n       name: {String} The name of the column\n       desc: {String} Humanized description (what would show in a table column name)\n    */\n    columnsForType(typeClass) {\n      var columns = [{\n        name: 'id',\n        desc: 'Id'\n      }];\n      var count = 0;\n      var self = this;\n      Ember.get(typeClass, 'attributes').forEach((meta, name) => {\n        if (count++ > self.attributeLimit) {\n          return false;\n        }\n\n        var desc = this.columnNameToDesc(name);\n        columns.push({\n          name: name,\n          desc: desc\n        });\n      });\n      return columns;\n    },\n\n    /**\n      Fetches all loaded records for a given type\n       @method getRecords\n      @internal\n      @param {Model} modelClass of the record\n      @param {String} modelName of the record\n      @return {Array} An array of Model records\n       This array will be observed for changes,\n       so it should update when new records are added/removed\n    */\n    getRecords(modelClass, modelName) {\n      if (arguments.length < 2) {\n        // Legacy Ember.js < 1.13 support\n        var containerKey = modelClass._debugContainerKey;\n\n        if (containerKey) {\n          var match = containerKey.match(/model:(.*)/);\n\n          if (match !== null) {\n            modelName = match[1];\n          }\n        }\n      }\n\n      (true && !(!!modelName) && Ember.assert('Cannot find model name. Please upgrade to Ember.js >= 1.13 for Ember Inspector support', !!modelName));\n      return this.get('store').peekAll(modelName);\n    },\n\n    /**\n      Gets the values for each column\n      This is the attribute values for a given record\n       @method getRecordColumnValues\n      @private\n      @param {Model} record to get values from\n      @return {Object} Keys should match column names defined by the model type\n    */\n    getRecordColumnValues(record) {\n      var count = 0;\n      var columnValues = {\n        id: Ember.get(record, 'id')\n      };\n      record.eachAttribute(key => {\n        if (count++ > this.attributeLimit) {\n          return false;\n        }\n\n        columnValues[key] = Ember.get(record, key);\n      });\n      return columnValues;\n    },\n\n    /**\n      Returns keywords to match when searching records\n       @method getRecordKeywords\n      @private\n      @param {Model} record\n      @return {Array} Relevant keywords for search based on the record's attribute values\n    */\n    getRecordKeywords(record) {\n      var keywords = [];\n      var keys = Ember.A(['id']);\n      record.eachAttribute(key => keys.push(key));\n      keys.forEach(key => keywords.push(Ember.get(record, key)));\n      return keywords;\n    },\n\n    /**\n      Returns the values of filters defined by `getFilters`\n      These reflect the state of the record\n       @method getRecordFilterValues\n      @private\n      @param {Model} record\n      @return {Object} The record state filter values\n    */\n    getRecordFilterValues(record) {\n      return {\n        isNew: record.get('isNew'),\n        isModified: record.get('hasDirtyAttributes') && !record.get('isNew'),\n        isClean: !record.get('hasDirtyAttributes')\n      };\n    },\n\n    /**\n      Returns a color that represents the record's state\n      Possible colors: black, blue, green\n       @method getRecordColor\n      @private\n      @param {Model} record\n      @return {String} The record color\n    */\n    getRecordColor(record) {\n      var color = 'black';\n\n      if (record.get('isNew')) {\n        color = 'green';\n      } else if (record.get('hasDirtyAttributes')) {\n        color = 'blue';\n      }\n\n      return color;\n    },\n\n    /**\n      Observes all relevant properties and re-sends the wrapped record\n      when a change occurs\n       @method observeRecord\n      @internal\n      @param {Model} record\n      @param {Function} recordUpdated Callback used to notify changes\n      @return {Function} The function to call to remove all observers\n    */\n    observeRecord(record, recordUpdated) {\n      var releaseMethods = Ember.A();\n      var keysToObserve = Ember.A(['id', 'isNew', 'hasDirtyAttributes']);\n      record.eachAttribute(key => keysToObserve.push(key));\n      var adapter = this;\n      keysToObserve.forEach(function (key) {\n        var handler = function () {\n          recordUpdated(adapter.wrapRecord(record));\n        };\n\n        Ember.addObserver(record, key, handler);\n        releaseMethods.push(function () {\n          Ember.removeObserver(record, key, handler);\n        });\n      });\n\n      var release = function () {\n        releaseMethods.forEach(fn => fn());\n      };\n\n      return release;\n    }\n\n  });\n\n  _exports.default = _default;\n});","define(\"@ember-data/debug/setup\", [\"exports\", \"@ember-data/store\"], function (_exports, _store) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.typesMapFor = typesMapFor;\n  _exports.default = void 0;\n  var StoreTypesMap = new WeakMap();\n\n  function typesMapFor(store) {\n    var typesMap = StoreTypesMap.get(store);\n\n    if (typesMap === undefined) {\n      typesMap = new Map();\n      StoreTypesMap.set(store, typesMap);\n    }\n\n    return typesMap;\n  } // override _createRecordData to add the known models to the typesMap\n\n\n  var __createRecordData = _store.default.prototype._createRecordData;\n\n  _store.default.prototype._createRecordData = function (identifier) {\n    var typesMap = typesMapFor(this);\n\n    if (!typesMap.has(identifier.type)) {\n      typesMap.set(identifier.type, false);\n    }\n\n    return __createRecordData.call(this, identifier);\n  };\n\n  var _default = {\n    name: '@ember-data/data-adapter',\n\n    initialize() {}\n\n  };\n  _exports.default = _default;\n});","define('@ember-data/model/-private', ['exports', '@ember-data/store/-private', '@ember-data/store'], function (exports, Private, store) { 'use strict';\n\n  function isElementDescriptor(args) {\n    var [maybeTarget, maybeKey, maybeDesc] = args;\n    return (// Ensure we have the right number of args\n      args.length === 3 && ( // Make sure the target is a class or object (prototype)\n      typeof maybeTarget === 'function' || typeof maybeTarget === 'object' && maybeTarget !== null) && // Make sure the key is a string\n      typeof maybeKey === 'string' && ( // Make sure the descriptor is the right shape\n      typeof maybeDesc === 'object' && maybeDesc !== null && 'enumerable' in maybeDesc && 'configurable' in maybeDesc || // TS compatibility\n      maybeDesc === undefined)\n    );\n  }\n  function computedMacroWithOptionalParams(fn) {\n    {\n      return (...maybeDesc) => isElementDescriptor(maybeDesc) ? fn()(...maybeDesc) : fn(...maybeDesc);\n    }\n  }\n\n  /**\n    @module @ember-data/model\n  */\n\n  function getDefaultValue(record, options, key) {\n    if (typeof options.defaultValue === 'function') {\n      return options.defaultValue.apply(null, arguments);\n    } else {\n      var defaultValue = options.defaultValue;\n      ( !(typeof defaultValue !== 'object' || defaultValue === null) && Ember.assert(`Non primitive defaultValues are not supported because they are shared between all instances. If you would like to use a complex object as a default value please provide a function that returns the complex object.`, typeof defaultValue !== 'object' || defaultValue === null));\n      return defaultValue;\n    }\n  }\n\n  function hasValue(internalModel, key) {\n    return Private.recordDataFor(internalModel).hasAttr(key);\n  }\n  /**\n    `attr` defines an attribute on a [Model](/ember-data/release/classes/Model).\n    By default, attributes are passed through as-is, however you can specify an\n    optional type to have the value automatically transformed.\n    Ember Data ships with four basic transform types: `string`, `number`,\n    `boolean` and `date`. You can define your own transforms by subclassing\n    [Transform](/ember-data/release/classes/Transform).\n\n    Note that you cannot use `attr` to define an attribute of `id`.\n\n    `attr` takes an optional hash as a second parameter, currently\n    supported options are:\n\n    - `defaultValue`: Pass a string or a function to be called to set the attribute\n    to a default value if none is supplied.\n\n    Example\n\n    ```app/models/user.js\n    import Model, { attr } from '@ember-data/model';\n\n    export default Model.extend({\n      username: attr('string'),\n      email: attr('string'),\n      verified: attr('boolean', { defaultValue: false })\n    });\n    ```\n\n    Default value can also be a function. This is useful it you want to return\n    a new object for each attribute.\n\n    ```app/models/user.js\n    import Model, { attr } from '@ember-data/model';\n\n    export default Model.extend({\n      username: attr('string'),\n      email: attr('string'),\n      settings: attr({\n        defaultValue() {\n          return {};\n        }\n      })\n    });\n    ```\n\n    The `options` hash is passed as second argument to a transforms'\n    `serialize` and `deserialize` method. This allows to configure a\n    transformation and adapt the corresponding value, based on the config:\n\n    ```app/models/post.js\n    import Model, { attr } from '@ember-data/model';\n\n    export default Model.extend({\n      text: attr('text', {\n        uppercase: true\n      })\n    });\n    ```\n\n    ```app/transforms/text.js\n    import Transform from '@ember-data/serializer/transform';\n\n    export default Transform.extend({\n      serialize(value, options) {\n        if (options.uppercase) {\n          return value.toUpperCase();\n        }\n\n        return value;\n      },\n\n      deserialize(value) {\n        return value;\n      }\n    })\n    ```\n\n    @method attr\n    @public\n    @static\n    @for @ember-data/model\n    @param {String|Object} type the attribute type\n    @param {Object} options a hash of options\n    @return {Attribute}\n  */\n\n\n  function attr(type, options) {\n    if (typeof type === 'object') {\n      options = type;\n      type = undefined;\n    } else {\n      options = options || {};\n    }\n\n    var meta = {\n      type: type,\n      isAttribute: true,\n      kind: 'attribute',\n      options: options\n    };\n    return Ember.computed({\n      get(key) {\n        {\n          if (['_internalModel', 'recordData', 'currentState'].indexOf(key) !== -1) {\n            throw new Error(`'${key}' is a reserved property name on instances of classes extending Model. Please choose a different property name for your attr on ${this.constructor.toString()}`);\n          }\n        }\n\n        var internalModel = this._internalModel;\n\n        if (hasValue(internalModel, key)) {\n          return internalModel.getAttributeValue(key);\n        } else {\n          return getDefaultValue(this, options, key);\n        }\n      },\n\n      set(key, value) {\n        {\n          if (['_internalModel', 'recordData', 'currentState'].indexOf(key) !== -1) {\n            throw new Error(`'${key}' is a reserved property name on instances of classes extending Model. Please choose a different property name for your attr on ${this.constructor.toString()}`);\n          }\n        }\n\n        return this._internalModel.setDirtyAttribute(key, value);\n      }\n\n    }).meta(meta);\n  }\n\n  var attr$1 = computedMacroWithOptionalParams(attr);\n\n  /**\n    @module @ember-data/model\n  */\n\n  /**\n    `belongsTo` is used to define One-To-One and One-To-Many\n    relationships on a [Model](/ember-data/release/classes/Model).\n\n\n    `belongsTo` takes an optional hash as a second parameter, currently\n    supported options are:\n\n    - `async`: A boolean value used to explicitly declare this to be an async relationship. The default is true.\n    - `inverse`: A string used to identify the inverse property on a\n      related model in a One-To-Many relationship. See [Explicit Inverses](#explicit-inverses)\n    - `polymorphic` A boolean value to mark the relationship as polymorphic\n\n    #### One-To-One\n    To declare a one-to-one relationship between two models, use\n    `belongsTo`:\n\n    ```app/models/user.js\n    import Model, { belongsTo } from '@ember-data/model';\n\n    export default Model.extend({\n      profile: belongsTo('profile')\n    });\n    ```\n\n    ```app/models/profile.js\n    import Model, { belongsTo } from '@ember-data/model';\n\n    export default Model.extend({\n      user: belongsTo('user')\n    });\n    ```\n\n    #### One-To-Many\n    To declare a one-to-many relationship between two models, use\n    `belongsTo` in combination with `hasMany`, like this:\n\n    ```app/models/post.js\n    import Model, { hasMany } from '@ember-data/model';\n\n    export default Model.extend({\n      comments: hasMany('comment')\n    });\n    ```\n\n    ```app/models/comment.js\n    import Model, { belongsTo } from '@ember-data/model';\n\n    export default Model.extend({\n      post: belongsTo('post')\n    });\n    ```\n\n    You can avoid passing a string as the first parameter. In that case Ember Data\n    will infer the type from the key name.\n\n    ```app/models/comment.js\n    import Model, { belongsTo } from '@ember-data/model';\n\n    export default Model.extend({\n      post: belongsTo()\n    });\n    ```\n\n    will lookup for a Post type.\n\n    #### Sync relationships\n\n    Ember Data resolves sync relationships with the related resources\n    available in its local store, hence it is expected these resources\n    to be loaded before or along-side the primary resource.\n\n    ```app/models/comment.js\n    import Model, { belongsTo } from '@ember-data/model';\n\n    export default Model.extend({\n      post: belongsTo('post', {\n        async: false\n      })\n    });\n    ```\n\n    In contrast to async relationship, accessing a sync relationship\n    will always return the record (Model instance) for the existing\n    local resource, or null. But it will error on access when\n    a related resource is known to exist and it has not been loaded.\n\n    ```\n    let post = comment.get('post');\n\n    ```\n\n    @method belongsTo\n    @public\n    @static\n    @for @ember-data/model\n    @param {String} modelName (optional) type of the relationship\n    @param {Object} options (optional) a hash of options\n    @return {Ember.computed} relationship\n  */\n\n  function belongsTo(modelName, options) {\n    var opts, userEnteredModelName;\n\n    if (typeof modelName === 'object') {\n      opts = modelName;\n      userEnteredModelName = undefined;\n    } else {\n      opts = options;\n      userEnteredModelName = modelName;\n    }\n\n    if (typeof userEnteredModelName === 'string') {\n      userEnteredModelName = store.normalizeModelName(userEnteredModelName);\n    }\n\n    ( !(typeof userEnteredModelName === 'string' || typeof userEnteredModelName === 'undefined') && Ember.assert('The first argument to belongsTo must be a string representing a model type key, not an instance of ' + Ember.inspect(userEnteredModelName) + \". E.g., to define a relation to the Person model, use belongsTo('person')\", typeof userEnteredModelName === 'string' || typeof userEnteredModelName === 'undefined'));\n    opts = opts || {};\n    var meta = {\n      type: userEnteredModelName,\n      isRelationship: true,\n      options: opts,\n      kind: 'belongsTo',\n      name: 'Belongs To',\n      key: null\n    };\n    return Ember.computed({\n      get(key) {\n        {\n          if (['_internalModel', 'recordData', 'currentState'].indexOf(key) !== -1) {\n            throw new Error(`'${key}' is a reserved property name on instances of classes extending Model. Please choose a different property name for your belongsTo on ${this.constructor.toString()}`);\n          }\n\n          if (Object.prototype.hasOwnProperty.call(opts, 'serialize')) {\n            ( Ember.warn(`You provided a serialize option on the \"${key}\" property in the \"${this._internalModel.modelName}\" class, this belongs in the serializer. See Serializer and it's implementations https://api.emberjs.com/ember-data/release/classes/Serializer`, false, {\n              id: 'ds.model.serialize-option-in-belongs-to'\n            }));\n          }\n\n          if (Object.prototype.hasOwnProperty.call(opts, 'embedded')) {\n            ( Ember.warn(`You provided an embedded option on the \"${key}\" property in the \"${this._internalModel.modelName}\" class, this belongs in the serializer. See EmbeddedRecordsMixin https://api.emberjs.com/ember-data/release/classes/EmbeddedRecordsMixin`, false, {\n              id: 'ds.model.embedded-option-in-belongs-to'\n            }));\n          }\n        }\n\n        return this._internalModel.getBelongsTo(key);\n      },\n\n      set(key, value) {\n        {\n          if (['_internalModel', 'recordData', 'currentState'].indexOf(key) !== -1) {\n            throw new Error(`'${key}' is a reserved property name on instances of classes extending Model. Please choose a different property name for your belongsTo on ${this.constructor.toString()}`);\n          }\n        }\n\n        this._internalModel.setDirtyBelongsTo(key, value);\n\n        return this._internalModel.getBelongsTo(key);\n      }\n\n    }).meta(meta);\n  }\n\n  var belongsTo$1 = computedMacroWithOptionalParams(belongsTo);\n\n  /**\n    @module @ember-data/model\n  */\n  /**\n    `hasMany` is used to define One-To-Many and Many-To-Many\n    relationships on a [Model](/ember-data/release/classes/Model).\n\n    `hasMany` takes an optional hash as a second parameter, currently\n    supported options are:\n\n    - `async`: A boolean value used to explicitly declare this to be an async relationship. The default is true.\n    - `inverse`: A string used to identify the inverse property on a related model.\n    - `polymorphic` A boolean value to mark the relationship as polymorphic\n\n    #### One-To-Many\n    To declare a one-to-many relationship between two models, use\n    `belongsTo` in combination with `hasMany`, like this:\n\n    ```app/models/post.js\n    import Model, { hasMany } from '@ember-data/model';\n\n    export default Model.extend({\n      comments: hasMany('comment')\n    });\n    ```\n\n    ```app/models/comment.js\n    import Model, { belongsTo } from '@ember-data/model';\n\n    export default Model.extend({\n      post: belongsTo('post')\n    });\n    ```\n\n    #### Many-To-Many\n    To declare a many-to-many relationship between two models, use\n    `hasMany`:\n\n    ```app/models/post.js\n    import Model, { hasMany } from '@ember-data/model';\n\n    export default Model.extend({\n      tags: hasMany('tag')\n    });\n    ```\n\n    ```app/models/tag.js\n    import Model, { hasMany } from '@ember-data/model';\n\n    export default Model.extend({\n      posts: hasMany('post')\n    });\n    ```\n\n    You can avoid passing a string as the first parameter. In that case Ember Data\n    will infer the type from the singularized key name.\n\n    ```app/models/post.js\n    import Model, { hasMany } from '@ember-data/model';\n\n    export default Model.extend({\n      tags: hasMany()\n    });\n    ```\n\n    will lookup for a Tag type.\n\n    #### Explicit Inverses\n\n    Ember Data will do its best to discover which relationships map to\n    one another. In the one-to-many code above, for example, Ember Data\n    can figure out that changing the `comments` relationship should update\n    the `post` relationship on the inverse because post is the only\n    relationship to that model.\n\n    However, sometimes you may have multiple `belongsTo`/`hasMany` for the\n    same type. You can specify which property on the related model is\n    the inverse using `hasMany`'s `inverse` option:\n\n    ```app/models/comment.js\n    import Model, { belongsTo } from '@ember-data/model';\n\n    export default Model.extend({\n      onePost: belongsTo('post'),\n      twoPost: belongsTo('post'),\n      redPost: belongsTo('post'),\n      bluePost: belongsTo('post')\n    });\n    ```\n\n    ```app/models/post.js\n    import Model, { hasMany } from '@ember-data/model';\n\n    export default Model.extend({\n      comments: hasMany('comment', {\n        inverse: 'redPost'\n      })\n    });\n    ```\n\n    You can also specify an inverse on a `belongsTo`, which works how\n    you'd expect.\n\n    #### Sync relationships\n\n    Ember Data resolves sync relationships with the related resources\n    available in its local store, hence it is expected these resources\n    to be loaded before or along-side the primary resource.\n\n    ```app/models/post.js\n    import Model, { hasMany } from '@ember-data/model';\n\n    export default Model.extend({\n      comments: hasMany('comment', {\n        async: false\n      })\n    });\n    ```\n\n    In contrast to async relationship, accessing a sync relationship\n    will always return a [ManyArray](/ember-data/release/classes/ManyArray) instance\n    containing the existing local resources. But it will error on access\n    when any of the known related resources have not been loaded.\n\n    ```\n    post.get('comments').forEach((comment) => {\n\n    });\n\n    ```\n\n    If you are using `links` with sync relationships, you have to use\n    `ref.reload` to fetch the resources.\n\n    @method hasMany\n    @public\n    @static\n    @for @ember-data/model\n    @param {String} type (optional) type of the relationship\n    @param {Object} options (optional) a hash of options\n    @return {Ember.computed} relationship\n  */\n\n  function hasMany(type, options) {\n    if (typeof type === 'object') {\n      options = type;\n      type = undefined;\n    }\n\n    ( !(typeof type === 'string' || typeof type === 'undefined') && Ember.assert(`The first argument to hasMany must be a string representing a model type key, not an instance of ${Ember.inspect(type)}. E.g., to define a relation to the Comment model, use hasMany('comment')`, typeof type === 'string' || typeof type === 'undefined'));\n    options = options || {};\n\n    if (typeof type === 'string') {\n      type = store.normalizeModelName(type);\n    } // Metadata about relationships is stored on the meta of\n    // the relationship. This is used for introspection and\n    // serialization. Note that `key` is populated lazily\n    // the first time the CP is called.\n\n\n    var meta = {\n      type,\n      options,\n      isRelationship: true,\n      kind: 'hasMany',\n      name: 'Has Many',\n      key: null\n    };\n    return Ember.computed({\n      get(key) {\n        {\n          if (['_internalModel', 'recordData', 'currentState'].indexOf(key) !== -1) {\n            throw new Error(`'${key}' is a reserved property name on instances of classes extending Model. Please choose a different property name for your hasMany on ${this.constructor.toString()}`);\n          }\n        }\n\n        return this._internalModel.getHasMany(key);\n      },\n\n      set(key, records) {\n        {\n          if (['_internalModel', 'recordData', 'currentState'].indexOf(key) !== -1) {\n            throw new Error(`'${key}' is a reserved property name on instances of classes extending Model. Please choose a different property name for your hasMany on ${this.constructor.toString()}`);\n          }\n        }\n\n        var internalModel = this._internalModel;\n        internalModel.setDirtyHasMany(key, records);\n        return internalModel.getHasMany(key);\n      }\n\n    }).meta(meta);\n  }\n\n  var hasMany$1 = computedMacroWithOptionalParams(hasMany);\n\n  /**\n    @module @ember-data/store\n  */\n\n  /**\n    Holds validation errors for a given record, organized by attribute names.\n\n    Every `Model` has an `errors` property that is an instance of\n    `Errors`. This can be used to display validation error\n    messages returned from the server when a `record.save()` rejects.\n\n    For Example, if you had a `User` model that looked like this:\n\n    ```app/models/user.js\n    import Model, { attr } from '@ember-data/model';\n\n    export default Model.extend({\n      username: attr('string'),\n      email: attr('string')\n    });\n    ```\n    And you attempted to save a record that did not validate on the backend:\n\n    ```javascript\n    let user = store.createRecord('user', {\n      username: 'tomster',\n      email: 'invalidEmail'\n    });\n    user.save();\n    ```\n\n    Your backend would be expected to return an error response that described\n    the problem, so that error messages can be generated on the app.\n\n    API responses will be translated into instances of `Errors` differently,\n    depending on the specific combination of adapter and serializer used. You\n    may want to check the documentation or the source code of the libraries\n    that you are using, to know how they expect errors to be communicated.\n\n    Errors can be displayed to the user by accessing their property name\n    to get an array of all the error objects for that property. Each\n    error object is a JavaScript object with two keys:\n\n    - `message` A string containing the error message from the backend\n    - `attribute` The name of the property associated with this error message\n\n    ```handlebars\n    <label>Username: {{input value=username}} </label>\n    {{#each model.errors.username as |error|}}\n      <div class=\"error\">\n        {{error.message}}\n      </div>\n    {{/each}}\n\n    <label>Email: {{input value=email}} </label>\n    {{#each model.errors.email as |error|}}\n      <div class=\"error\">\n        {{error.message}}\n      </div>\n    {{/each}}\n    ```\n\n    You can also access the special `messages` property on the error\n    object to get an array of all the error strings.\n\n    ```handlebars\n    {{#each model.errors.messages as |message|}}\n      <div class=\"error\">\n        {{message}}\n      </div>\n    {{/each}}\n    ```\n\n    @class Errors\n    @extends ArrayProxy\n    @uses Evented\n   */\n\n  var Errors = Ember.ArrayProxy.extend(Private.DeprecatedEvented, {\n    /**\n      Register with target handler\n       @method _registerHandlers\n      @private\n    */\n    _registerHandlers(becameInvalid, becameValid) {\n      this._registeredHandlers = {\n        becameInvalid,\n        becameValid\n      };\n    },\n\n    /**\n      @property errorsByAttributeName\n      @type {MapWithDefault}\n      @private\n    */\n    errorsByAttributeName: Ember.computed(function () {\n      return new Map();\n    }),\n\n    /**\n      Returns errors for a given attribute\n       ```javascript\n      let user = store.createRecord('user', {\n        username: 'tomster',\n        email: 'invalidEmail'\n      });\n      user.save().catch(function(){\n        user.get('errors').errorsFor('email'); // returns:\n        // [{attribute: \"email\", message: \"Doesn't look like a valid email.\"}]\n      });\n      ```\n       @method errorsFor\n      @param {String} attribute\n      @return {Array}\n    */\n    errorsFor(attribute) {\n      var map = Ember.get(this, 'errorsByAttributeName');\n\n      if (!map.has(attribute)) {\n        map.set(attribute, Ember.A());\n      }\n\n      return map.get(attribute);\n    },\n\n    /**\n      An array containing all of the error messages for this\n      record. This is useful for displaying all errors to the user.\n       ```handlebars\n      {{#each model.errors.messages as |message|}}\n        <div class=\"error\">\n          {{message}}\n        </div>\n      {{/each}}\n      ```\n       @property messages\n      @type {Array}\n    */\n    messages: Ember.computed.mapBy('content', 'message'),\n\n    /**\n      @property content\n      @type {Array}\n      @private\n    */\n    content: Ember.computed(function () {\n      return Ember.A();\n    }),\n\n    /**\n      @method unknownProperty\n      @private\n    */\n    unknownProperty(attribute) {\n      var errors = this.errorsFor(attribute);\n\n      if (errors.length === 0) {\n        return undefined;\n      }\n\n      return errors;\n    },\n\n    /**\n      Total number of errors.\n       @property length\n      @type {Number}\n      @readOnly\n    */\n\n    /**\n      @property isEmpty\n      @type {Boolean}\n      @readOnly\n    */\n    isEmpty: Ember.computed.not('length').readOnly(),\n\n    /**\n     Manually adds errors to the record. This will trigger the `becameInvalid` event/ lifecycle method on\n      the record and transition the record into an `invalid` state.\n      Example\n     ```javascript\n      let errors = get(user, 'errors');\n       // add multiple errors\n      errors.add('password', [\n        'Must be at least 12 characters',\n        'Must contain at least one symbol',\n        'Cannot contain your name'\n      ]);\n       errors.errorsFor('password');\n      // =>\n      // [\n      //   { attribute: 'password', message: 'Must be at least 12 characters' },\n      //   { attribute: 'password', message: 'Must contain at least one symbol' },\n      //   { attribute: 'password', message: 'Cannot contain your name' },\n      // ]\n       // add a single error\n      errors.add('username', 'This field is required');\n       errors.errorsFor('password');\n      // =>\n      // [\n      //   { attribute: 'username', message: 'This field is required' },\n      // ]\n     ```\n    @method add\n    @param {string} attribute - the property name of an attribute or relationship\n    @param {string[]|string} messages - an error message or array of error messages for the attribute\n     */\n    add(attribute, messages) {\n      var wasEmpty = Ember.get(this, 'isEmpty');\n\n      this._add(attribute, messages);\n\n      if (wasEmpty && !Ember.get(this, 'isEmpty')) {\n        this._registeredHandlers && this._registeredHandlers.becameInvalid();\n\n        if ( this._has('becameInvalid')) {\n          this.trigger('becameInvalid');\n        }\n      }\n    },\n\n    /**\n      Adds error messages to a given attribute without sending event.\n       @method _add\n      @private\n    */\n    _add(attribute, messages) {\n      messages = this._findOrCreateMessages(attribute, messages);\n      this.addObjects(messages);\n      this.errorsFor(attribute).addObjects(messages);\n      this.notifyPropertyChange(attribute);\n    },\n\n    /**\n      @method _findOrCreateMessages\n      @private\n    */\n    _findOrCreateMessages(attribute, messages) {\n      var errors = this.errorsFor(attribute);\n      var messagesArray = Ember.makeArray(messages);\n\n      var _messages = new Array(messagesArray.length);\n\n      for (var i = 0; i < messagesArray.length; i++) {\n        var message = messagesArray[i];\n        var err = errors.findBy('message', message);\n\n        if (err) {\n          _messages[i] = err;\n        } else {\n          _messages[i] = {\n            attribute: attribute,\n            message: message\n          };\n        }\n      }\n\n      return _messages;\n    },\n\n    /**\n     Manually removes all errors for a given member from the record.\n       This will transition the record into a `valid` state, and\n      triggers the `becameValid` event and lifecycle method.\n      Example:\n      ```javascript\n      let errors = get('user', errors);\n      errors.add('phone', ['error-1', 'error-2']);\n       errors.errorsFor('phone');\n      // =>\n      // [\n      //   { attribute: 'phone', message: 'error-1' },\n      //   { attribute: 'phone', message: 'error-2' },\n      // ]\n       errors.remove('phone');\n       errors.errorsFor('phone');\n      // => undefined\n     ```\n     @method remove\n     @param {string} member - the property name of an attribute or relationship\n     */\n    remove(attribute) {\n      if (Ember.get(this, 'isEmpty')) {\n        return;\n      }\n\n      this._remove(attribute);\n\n      if (Ember.get(this, 'isEmpty')) {\n        this._registeredHandlers && this._registeredHandlers.becameValid();\n\n        if ( this._has('becameValid')) {\n          this.trigger('becameValid');\n        }\n      }\n    },\n\n    /**\n      Removes all error messages from the given attribute without sending event.\n       @method _remove\n      @private\n    */\n    _remove(attribute) {\n      if (Ember.get(this, 'isEmpty')) {\n        return;\n      }\n\n      var content = this.rejectBy('attribute', attribute);\n      Ember.get(this, 'content').setObjects(content);\n      Ember.get(this, 'errorsByAttributeName').delete(attribute);\n      this.notifyPropertyChange(attribute);\n      this.notifyPropertyChange('length');\n    },\n\n    /**\n     Manually clears all errors for the record.\n       This will transition the record into a `valid` state, and\n       will trigger the `becameValid` event and lifecycle method.\n     Example:\n      ```javascript\n     let errors = get('user', errors);\n     errors.add('username', ['error-a']);\n     errors.add('phone', ['error-1', 'error-2']);\n      errors.errorsFor('username');\n     // =>\n     // [\n     //   { attribute: 'username', message: 'error-a' },\n     // ]\n      errors.errorsFor('phone');\n     // =>\n     // [\n     //   { attribute: 'phone', message: 'error-1' },\n     //   { attribute: 'phone', message: 'error-2' },\n     // ]\n      errors.clear();\n      errors.errorsFor('username');\n     // => undefined\n      errors.errorsFor('phone');\n     // => undefined\n      errors.get('messages')\n     // => []\n     ```\n     @method remove\n     */\n    clear() {\n      if (Ember.get(this, 'isEmpty')) {\n        return;\n      }\n\n      this._clear();\n\n      this._registeredHandlers && this._registeredHandlers.becameValid();\n\n      if ( this._has('becameValid')) {\n        this.trigger('becameValid');\n      }\n    },\n\n    /**\n      Removes all error messages.\n      to the record.\n       @method _clear\n      @private\n    */\n    _clear() {\n      if (Ember.get(this, 'isEmpty')) {\n        return;\n      }\n\n      var errorsByAttributeName = Ember.get(this, 'errorsByAttributeName');\n      var attributes = [];\n      errorsByAttributeName.forEach(function (_, attribute) {\n        attributes.push(attribute);\n      });\n      errorsByAttributeName.clear();\n      attributes.forEach(attribute => {\n        this.notifyPropertyChange(attribute);\n      });\n      Ember.ArrayProxy.prototype.clear.call(this);\n    },\n\n    /**\n      Checks if there are error messages for the given attribute.\n       ```app/routes/user/edit.js\n      import Route from '@ember/routing/route';\n       export default Route.extend({\n        actions: {\n          save: function(user) {\n            if (user.get('errors').has('email')) {\n              return alert('Please update your email before attempting to save.');\n            }\n            user.save();\n          }\n        }\n      });\n      ```\n       @method has\n      @param {String} attribute\n      @return {Boolean} true if there some errors on given attribute\n    */\n    has(attribute) {\n      return this.errorsFor(attribute).length > 0;\n    }\n\n  });\n\n  /**\n    @module @ember-data/model\n  */\n\n  var relationshipsDescriptor = Ember.computed(function () {\n    var map = new Map();\n    var relationshipsByName = Ember.get(this, 'relationshipsByName'); // Loop through each computed property on the class\n\n    relationshipsByName.forEach(desc => {\n      var {\n        type\n      } = desc;\n\n      if (!map.has(type)) {\n        map.set(type, []);\n      }\n\n      map.get(type).push(desc);\n    });\n    return map;\n  }).readOnly();\n  var relatedTypesDescriptor = Ember.computed(function () {\n    var parentModelName = this.modelName;\n    var types = Ember.A(); // Loop through each computed property on the class,\n    // and create an array of the unique types involved\n    // in relationships\n\n    this.eachComputedProperty((name, meta) => {\n      if (meta.isRelationship) {\n        meta.key = name;\n        var modelName = Private.typeForRelationshipMeta(meta);\n        ( !(modelName) && Ember.assert(`You specified a hasMany (${meta.type}) on ${parentModelName} but ${meta.type} was not found.`, modelName));\n\n        if (!types.includes(modelName)) {\n          ( !(!!modelName) && Ember.assert(`Trying to sideload ${name} on ${this.toString()} but the type doesn't exist.`, !!modelName));\n          types.push(modelName);\n        }\n      }\n    });\n    return types;\n  }).readOnly();\n  var relationshipsObjectDescriptor = Ember.computed(function () {\n    var relationships = Object.create(null);\n    var modelName = this.modelName;\n    this.eachComputedProperty((name, meta) => {\n      if (meta.isRelationship) {\n        meta.key = name;\n        meta.name = name;\n        meta.parentModelName = modelName;\n        relationships[name] = Private.relationshipFromMeta(meta);\n      }\n    });\n    return relationships;\n  });\n  var relationshipsByNameDescriptor = Ember.computed(function () {\n    var map = new Map();\n    var rels = Ember.get(this, 'relationshipsObject');\n    var relationships = Object.keys(rels);\n\n    for (var i = 0; i < relationships.length; i++) {\n      var key = relationships[i];\n      var value = rels[key];\n      map.set(value.key, value);\n    }\n\n    return map;\n  }).readOnly();\n\n  var {\n    changeProperties\n  } = Ember;\n\n  function findPossibleInverses(type, inverseType, name, relationshipsSoFar) {\n    var possibleRelationships = relationshipsSoFar || [];\n    var relationshipMap = Ember.get(inverseType, 'relationships');\n\n    if (!relationshipMap) {\n      return possibleRelationships;\n    }\n\n    var relationshipsForType = relationshipMap.get(type.modelName);\n    var relationships = Array.isArray(relationshipsForType) ? relationshipsForType.filter(relationship => {\n      var optionsForRelationship = inverseType.metaForProperty(relationship.name).options;\n\n      if (!optionsForRelationship.inverse && optionsForRelationship.inverse !== null) {\n        return true;\n      }\n\n      return name === optionsForRelationship.inverse;\n    }) : null;\n\n    if (relationships) {\n      possibleRelationships.push.apply(possibleRelationships, relationships);\n    } //Recurse to support polymorphism\n\n\n    if (type.superclass) {\n      findPossibleInverses(type.superclass, inverseType, name, possibleRelationships);\n    }\n\n    return possibleRelationships;\n  }\n\n  var retrieveFromCurrentState = Ember.computed('currentState', function (key) {\n    return Ember.get(this._internalModel.currentState, key);\n  }).readOnly();\n  var isValidRecordData = Ember.computed('errors.length', function (key) {\n    return !(this.get('errors.length') > 0);\n  }).readOnly();\n  var isValid =  retrieveFromCurrentState;\n  var isDeletedCP;\n\n  {\n    isDeletedCP = retrieveFromCurrentState;\n  }\n\n  var isNewCP;\n\n  {\n    isNewCP = retrieveFromCurrentState;\n  }\n\n  var adapterError;\n\n  {\n    adapterError = null;\n  }\n\n  var isError;\n\n  {\n    isError = false;\n  }\n\n  var isReloading;\n\n  {\n    isReloading = false;\n  }\n  /**\n    @class Model\n    @module @ember-data/model\n    @extends EmberObject\n    @uses EmberData.DeprecatedEvented\n  */\n\n\n  var Model = Ember.Object.extend(Private.DeprecatedEvented, {\n    init() {\n      this._super(...arguments);\n\n      {\n        if (!this._internalModel) {\n          throw new Ember.Error('You should not call `create` on a model. Instead, call `store.createRecord` with the attributes you would like to set.');\n        }\n      }\n    },\n\n    _notifyNetworkChanges: function () {\n      {\n        ['isValid'].forEach(key => this.notifyPropertyChange(key));\n      }\n    },\n\n    /**\n      If this property is `true` the record is in the `empty`\n      state. Empty is the first state all records enter after they have\n      been created. Most records created by the store will quickly\n      transition to the `loading` state if data needs to be fetched from\n      the server or the `created` state if the record is created on the\n      client. A record can also enter the empty state if the adapter is\n      unable to locate the record.\n       @property isEmpty\n      @type {Boolean}\n      @readOnly\n    */\n    isEmpty: retrieveFromCurrentState,\n\n    /**\n      If this property is `true` the record is in the `loading` state. A\n      record enters this state when the store asks the adapter for its\n      data. It remains in this state until the adapter provides the\n      requested data.\n       @property isLoading\n      @type {Boolean}\n      @readOnly\n    */\n    isLoading: retrieveFromCurrentState,\n\n    /**\n      If this property is `true` the record is in the `loaded` state. A\n      record enters this state when its data is populated. Most of a\n      record's lifecycle is spent inside substates of the `loaded`\n      state.\n       Example\n       ```javascript\n      let record = store.createRecord('model');\n      record.get('isLoaded'); // true\n       store.findRecord('model', 1).then(function(model) {\n        model.get('isLoaded'); // true\n      });\n      ```\n       @property isLoaded\n      @type {Boolean}\n      @readOnly\n    */\n    isLoaded: retrieveFromCurrentState,\n\n    /**\n      If this property is `true` the record is in the `dirty` state. The\n      record has local changes that have not yet been saved by the\n      adapter. This includes records that have been created (but not yet\n      saved) or deleted.\n       Example\n       ```javascript\n      let record = store.createRecord('model');\n      record.get('hasDirtyAttributes'); // true\n       store.findRecord('model', 1).then(function(model) {\n        model.get('hasDirtyAttributes'); // false\n        model.set('foo', 'some value');\n        model.get('hasDirtyAttributes'); // true\n      });\n      ```\n       @since 1.13.0\n      @property hasDirtyAttributes\n      @type {Boolean}\n      @readOnly\n    */\n    hasDirtyAttributes: Ember.computed('currentState.isDirty', function () {\n      return this.get('currentState.isDirty');\n    }),\n\n    /**\n      If this property is `true` the record is in the `saving` state. A\n      record enters the saving state when `save` is called, but the\n      adapter has not yet acknowledged that the changes have been\n      persisted to the backend.\n       Example\n       ```javascript\n      let record = store.createRecord('model');\n      record.get('isSaving'); // false\n      let promise = record.save();\n      record.get('isSaving'); // true\n      promise.then(function() {\n        record.get('isSaving'); // false\n      });\n      ```\n       @property isSaving\n      @type {Boolean}\n      @readOnly\n    */\n    isSaving: retrieveFromCurrentState,\n\n    /**\n      If this property is `true` the record is in the `deleted` state\n      and has been marked for deletion. When `isDeleted` is true and\n      `hasDirtyAttributes` is true, the record is deleted locally but the deletion\n      was not yet persisted. When `isSaving` is true, the change is\n      in-flight. When both `hasDirtyAttributes` and `isSaving` are false, the\n      change has persisted.\n       Example\n       ```javascript\n      let record = store.createRecord('model');\n      record.get('isDeleted');    // false\n      record.deleteRecord();\n       // Locally deleted\n      record.get('isDeleted');           // true\n      record.get('hasDirtyAttributes');  // true\n      record.get('isSaving');            // false\n       // Persisting the deletion\n      let promise = record.save();\n      record.get('isDeleted');    // true\n      record.get('isSaving');     // true\n       // Deletion Persisted\n      promise.then(function() {\n        record.get('isDeleted');          // true\n        record.get('isSaving');           // false\n        record.get('hasDirtyAttributes'); // false\n      });\n      ```\n       @property isDeleted\n      @type {Boolean}\n      @readOnly\n    */\n    isDeleted: isDeletedCP,\n\n    /**\n      If this property is `true` the record is in the `new` state. A\n      record will be in the `new` state when it has been created on the\n      client and the adapter has not yet report that it was successfully\n      saved.\n       Example\n       ```javascript\n      let record = store.createRecord('model');\n      record.get('isNew'); // true\n       record.save().then(function(model) {\n        model.get('isNew'); // false\n      });\n      ```\n       @property isNew\n      @type {Boolean}\n      @readOnly\n    */\n    isNew: isNewCP,\n\n    /**\n      If this property is `true` the record is in the `valid` state.\n       A record will be in the `valid` state when the adapter did not report any\n      server-side validation failures.\n       @property isValid\n      @type {Boolean}\n      @readOnly\n    */\n    isValid: isValid,\n\n    _markInvalidRequestAsClean() {\n    },\n\n    /**\n      If the record is in the dirty state this property will report what\n      kind of change has caused it to move into the dirty\n      state. Possible values are:\n       - `created` The record has been created by the client and not yet saved to the adapter.\n      - `updated` The record has been updated by the client and not yet saved to the adapter.\n      - `deleted` The record has been deleted by the client and not yet saved to the adapter.\n       Example\n       ```javascript\n      let record = store.createRecord('model');\n      record.get('dirtyType'); // 'created'\n      ```\n       @property dirtyType\n      @type {String}\n      @readOnly\n    */\n    dirtyType: retrieveFromCurrentState,\n\n    /**\n      If `true` the adapter reported that it was unable to save local\n      changes to the backend for any reason other than a server-side\n      validation error.\n       Example\n       ```javascript\n      record.get('isError'); // false\n      record.set('foo', 'valid value');\n      record.save().then(null, function() {\n        record.get('isError'); // true\n      });\n      ```\n       @property isError\n      @type {Boolean}\n      @readOnly\n    */\n    isError: isError,\n\n    _markErrorRequestAsClean() {\n      this._errorRequests = [];\n      this._lastError = null;\n\n      this._notifyNetworkChanges();\n    },\n\n    /**\n      If `true` the store is attempting to reload the record from the adapter.\n       Example\n       ```javascript\n      record.get('isReloading'); // false\n      record.reload();\n      record.get('isReloading'); // true\n      ```\n       @property isReloading\n      @type {Boolean}\n      @readOnly\n    */\n    isReloading: isReloading,\n\n    /**\n      All ember models have an id property. This is an identifier\n      managed by an external source. These are always coerced to be\n      strings before being used internally. Note when declaring the\n      attributes for a model it is an error to declare an id\n      attribute.\n       ```javascript\n      let record = store.createRecord('model');\n      record.get('id'); // null\n       store.findRecord('model', 1).then(function(model) {\n        model.get('id'); // '1'\n      });\n      ```\n       @property id\n      @type {String}\n    */\n\n    /**\n      @property currentState\n      @private\n      @type {Object}\n    */\n    currentState: Private.RootState.empty,\n    // defined here to avoid triggering setUnknownProperty\n\n    /**\n     @property _internalModel\n     @private\n     @type {Object}\n     */\n    _internalModel: null,\n    // defined here to avoid triggering setUnknownProperty\n\n    /**\n     @property recordData\n     @private\n     @type undefined (reserved)\n     */\n    // will be defined here to avoid triggering setUnknownProperty\n\n    /**\n     @property store\n     */\n    store: null,\n    // defined here to avoid triggering setUnknownProperty\n\n    /**\n      When the record is in the `invalid` state this object will contain\n      any errors returned by the adapter. When present the errors hash\n      contains keys corresponding to the invalid property names\n      and values which are arrays of Javascript objects with two keys:\n       - `message` A string containing the error message from the backend\n      - `attribute` The name of the property associated with this error message\n       ```javascript\n      record.get('errors.length'); // 0\n      record.set('foo', 'invalid value');\n      record.save().catch(function() {\n        record.get('errors').get('foo');\n        // [{message: 'foo should be a number.', attribute: 'foo'}]\n      });\n      ```\n       The `errors` property us useful for displaying error messages to\n      the user.\n       ```handlebars\n      <label>Username: {{input value=username}} </label>\n      {{#each model.errors.username as |error|}}\n        <div class=\"error\">\n          {{error.message}}\n        </div>\n      {{/each}}\n      <label>Email: {{input value=email}} </label>\n      {{#each model.errors.email as |error|}}\n        <div class=\"error\">\n          {{error.message}}\n        </div>\n      {{/each}}\n      ```\n        You can also access the special `messages` property on the error\n      object to get an array of all the error strings.\n       ```handlebars\n      {{#each model.errors.messages as |message|}}\n        <div class=\"error\">\n          {{message}}\n        </div>\n      {{/each}}\n      ```\n       @property errors\n      @type {Errors}\n    */\n    errors: Ember.computed(function () {\n      var errors = Errors.create();\n\n      errors._registerHandlers(() => {\n        this.send('becameInvalid');\n      }, () => {\n        this.send('becameValid');\n      });\n\n      return errors;\n    }).readOnly(),\n\n    invalidErrorsChanged(jsonApiErrors) {\n    },\n\n    _addErrorMessageToAttribute(attribute, message) {\n      this.get('errors')._add(attribute, message);\n    },\n\n    _clearErrorMessages() {\n      this.get('errors')._clear();\n    },\n\n    /**\n      This property holds the `AdapterError` object with which\n      last adapter operation was rejected.\n       @property adapterError\n      @type {AdapterError}\n    */\n    adapterError: adapterError,\n\n    /**\n      Create a JSON representation of the record, using the serialization\n      strategy of the store's adapter.\n      `serialize` takes an optional hash as a parameter, currently\n      supported options are:\n      - `includeId`: `true` if the record's ID should be included in the\n        JSON representation.\n       @method serialize\n      @param {Object} options\n      @return {Object} an object whose values are primitive JSON values only\n    */\n    serialize(options) {\n      return this._internalModel.createSnapshot().serialize(options);\n    },\n\n    /**\n      Fired when the record is ready to be interacted with,\n      that is either loaded from the server or created locally.\n       @event ready\n    */\n    ready: null,\n\n    /**\n      Fired when the record is loaded from the server.\n       @event didLoad\n    */\n    didLoad: null,\n\n    /**\n      Fired when the record is updated.\n       @event didUpdate\n    */\n    didUpdate: null,\n\n    /**\n      Fired when a new record is commited to the server.\n       @event didCreate\n    */\n    didCreate: null,\n\n    /**\n      Fired when the record is deleted.\n       @event didDelete\n    */\n    didDelete: null,\n\n    /**\n      Fired when the record becomes invalid.\n       @event becameInvalid\n    */\n    becameInvalid: null,\n\n    /**\n      Fired when the record enters the error state.\n       @event becameError\n    */\n    becameError: null,\n\n    /**\n      Fired when the record is rolled back.\n       @event rolledBack\n    */\n    rolledBack: null,\n\n    //TODO Do we want to deprecate these?\n\n    /**\n      @method send\n      @private\n      @param {String} name\n      @param {Object} context\n    */\n    send(name, context) {\n      return this._internalModel.send(name, context);\n    },\n\n    /**\n      @method transitionTo\n      @private\n      @param {String} name\n    */\n    transitionTo(name) {\n      return this._internalModel.transitionTo(name);\n    },\n\n    /**\n      Marks the record as deleted but does not save it. You must call\n      `save` afterwards if you want to persist it. You might use this\n      method if you want to allow the user to still `rollbackAttributes()`\n      after a delete was made.\n       Example\n       ```app/routes/model/delete.js\n      import Route from '@ember/routing/route';\n       export default Route.extend({\n        actions: {\n          softDelete() {\n            this.get('controller.model').deleteRecord();\n          },\n          confirm() {\n            this.get('controller.model').save();\n          },\n          undo() {\n            this.get('controller.model').rollbackAttributes();\n          }\n        }\n      });\n      ```\n       @method deleteRecord\n    */\n    deleteRecord() {\n      this._internalModel.deleteRecord();\n    },\n\n    /**\n      Same as `deleteRecord`, but saves the record immediately.\n       Example\n       ```app/routes/model/delete.js\n      import Route from '@ember/routing/route';\n       export default Route.extend({\n        actions: {\n          delete() {\n            this.get('controller.model').destroyRecord().then(function() {\n              controller.transitionToRoute('model.index');\n            });\n          }\n        }\n      });\n      ```\n       If you pass an object on the `adapterOptions` property of the options\n      argument it will be passed to your adapter via the snapshot\n       ```js\n      record.destroyRecord({ adapterOptions: { subscribe: false } });\n      ```\n       ```app/adapters/post.js\n      import MyCustomAdapter from './custom-adapter';\n       export default MyCustomAdapter.extend({\n        deleteRecord(store, type, snapshot) {\n          if (snapshot.adapterOptions.subscribe) {\n            // ...\n          }\n          // ...\n        }\n      });\n      ```\n       @method destroyRecord\n      @param {Object} options\n      @return {Promise} a promise that will be resolved when the adapter returns\n      successfully or rejected if the adapter returns with an error.\n    */\n    destroyRecord(options) {\n      this.deleteRecord();\n      return this.save(options);\n    },\n\n    /**\n      Unloads the record from the store. This will not send a delete request\n      to your server, it just unloads the record from memory.\n       @method unloadRecord\n    */\n    unloadRecord() {\n      if (this.isDestroyed) {\n        return;\n      }\n\n      this._internalModel.unloadRecord();\n    },\n\n    /**\n      @method _notifyProperties\n      @private\n    */\n    _notifyProperties(keys) {\n      // changeProperties defers notifications until after the delegate\n      // and protects with a try...finally block\n      // previously used begin...endPropertyChanges but this is private API\n      changeProperties(() => {\n        var key;\n\n        for (var i = 0, length = keys.length; i < length; i++) {\n          key = keys[i];\n          this.notifyPropertyChange(key);\n        }\n      });\n    },\n\n    /**\n      Returns an object, whose keys are changed properties, and value is\n      an [oldProp, newProp] array.\n       The array represents the diff of the canonical state with the local state\n      of the model. Note: if the model is created locally, the canonical state is\n      empty since the adapter hasn't acknowledged the attributes yet:\n       Example\n       ```app/models/mascot.js\n      import Model, { attr } from '@ember-data/model';\n       export default Model.extend({\n        name: attr('string'),\n        isAdmin: attr('boolean', {\n          defaultValue: false\n        })\n      });\n      ```\n       ```javascript\n      let mascot = store.createRecord('mascot');\n       mascot.changedAttributes(); // {}\n       mascot.set('name', 'Tomster');\n      mascot.changedAttributes(); // { name: [undefined, 'Tomster'] }\n       mascot.set('isAdmin', true);\n      mascot.changedAttributes(); // { isAdmin: [undefined, true], name: [undefined, 'Tomster'] }\n       mascot.save().then(function() {\n        mascot.changedAttributes(); // {}\n         mascot.set('isAdmin', false);\n        mascot.changedAttributes(); // { isAdmin: [true, false] }\n      });\n      ```\n       @method changedAttributes\n      @return {Object} an object, whose keys are changed properties,\n        and value is an [oldProp, newProp] array.\n    */\n    changedAttributes() {\n      return this._internalModel.changedAttributes();\n    },\n\n    /**\n      If the model `hasDirtyAttributes` this function will discard any unsaved\n      changes. If the model `isNew` it will be removed from the store.\n       Example\n       ```javascript\n      record.get('name'); // 'Untitled Document'\n      record.set('name', 'Doc 1');\n      record.get('name'); // 'Doc 1'\n      record.rollbackAttributes();\n      record.get('name'); // 'Untitled Document'\n      ```\n       @since 1.13.0\n      @method rollbackAttributes\n    */\n    rollbackAttributes() {\n      this._internalModel.rollbackAttributes();\n    },\n\n    /*\n      @method _createSnapshot\n      @private\n    */\n    _createSnapshot() {\n      return this._internalModel.createSnapshot();\n    },\n\n    toStringExtension() {\n      // the _internalModel guard exists, because some dev-only deprecation code\n      // (addListener via validatePropertyInjections) invokes toString before the\n      // object is real.\n      return this._internalModel && this._internalModel.id;\n    },\n\n    /**\n      Save the record and persist any changes to the record to an\n      external source via the adapter.\n       Example\n       ```javascript\n      record.set('name', 'Tomster');\n      record.save().then(function() {\n        // Success callback\n      }, function() {\n        // Error callback\n      });\n      ```\n      If you pass an object using the `adapterOptions` property of the options\n     argument it will be passed to your adapter via the snapshot.\n       ```js\n      record.save({ adapterOptions: { subscribe: false } });\n      ```\n       ```app/adapters/post.js\n      import MyCustomAdapter from './custom-adapter';\n       export default MyCustomAdapter.extend({\n        updateRecord(store, type, snapshot) {\n          if (snapshot.adapterOptions.subscribe) {\n            // ...\n          }\n          // ...\n        }\n      });\n      ```\n       @method save\n      @param {Object} options\n      @return {Promise} a promise that will be resolved when the adapter returns\n      successfully or rejected if the adapter returns with an error.\n    */\n    save(options) {\n      return Private.PromiseObject.create({\n        promise: this._internalModel.save(options).then(() => this)\n      });\n    },\n\n    /**\n      Reload the record from the adapter.\n       This will only work if the record has already finished loading.\n       Example\n       ```app/routes/model/view.js\n      import Route from '@ember/routing/route';\n       export default Route.extend({\n        actions: {\n          reload() {\n            this.controller.get('model').reload().then(function(model) {\n              // do something with the reloaded model\n            });\n          }\n        }\n      });\n      ```\n       @method reload\n      @param {Object} options optional, may include `adapterOptions` hash which will be passed to adapter request\n      @return {Promise} a promise that will be resolved with the record when the\n      adapter returns successfully or rejected if the adapter returns\n      with an error.\n    */\n    reload(options) {\n      var wrappedAdapterOptions;\n\n      if (typeof options === 'object' && options !== null && options.adapterOptions) {\n        wrappedAdapterOptions = {\n          adapterOptions: options.adapterOptions\n        };\n      }\n\n      return Private.PromiseObject.create({\n        promise: this._internalModel.reload(wrappedAdapterOptions).then(() => this)\n      });\n    },\n\n    attr() {\n      ( Ember.assert('The `attr` method is not available on Model, a Snapshot was probably expected. Are you passing a Model instead of a Snapshot to your serializer?', false));\n    },\n\n    /**\n      Get the reference for the specified belongsTo relationship.\n       Example\n       ```app/models/blog.js\n      import Model, { belongsTo } from '@ember-data/model';\n       export default Model.extend({\n        user: belongsTo({ async: true })\n      });\n      ```\n       ```javascript\n      let blog = store.push({\n        data: {\n          type: 'blog',\n          id: 1,\n          relationships: {\n            user: {\n              data: { type: 'user', id: 1 }\n            }\n          }\n        }\n      });\n      let userRef = blog.belongsTo('user');\n       // check if the user relationship is loaded\n      let isLoaded = userRef.value() !== null;\n       // get the record of the reference (null if not yet available)\n      let user = userRef.value();\n       // get the identifier of the reference\n      if (userRef.remoteType() === \"id\") {\n        let id = userRef.id();\n      } else if (userRef.remoteType() === \"link\") {\n        let link = userRef.link();\n      }\n       // load user (via store.findRecord or store.findBelongsTo)\n      userRef.load().then(...)\n       // or trigger a reload\n      userRef.reload().then(...)\n       // provide data for reference\n      userRef.push({\n        type: 'user',\n        id: 1,\n        attributes: {\n          username: \"@user\"\n        }\n      }).then(function(user) {\n        userRef.value() === user;\n      });\n      ```\n       @method belongsTo\n      @param {String} name of the relationship\n      @since 2.5.0\n      @return {BelongsToReference} reference for this relationship\n    */\n    belongsTo(name) {\n      return this._internalModel.referenceFor('belongsTo', name);\n    },\n\n    /**\n      Get the reference for the specified hasMany relationship.\n       Example\n       ```app/models/blog.js\n      import Model, { hasMany } from '@ember-data/model';\n       export default Model.extend({\n        comments: hasMany({ async: true })\n      });\n       let blog = store.push({\n        data: {\n          type: 'blog',\n          id: 1,\n          relationships: {\n            comments: {\n              data: [\n                { type: 'comment', id: 1 },\n                { type: 'comment', id: 2 }\n              ]\n            }\n          }\n        }\n      });\n      let commentsRef = blog.hasMany('comments');\n       // check if the comments are loaded already\n      let isLoaded = commentsRef.value() !== null;\n       // get the records of the reference (null if not yet available)\n      let comments = commentsRef.value();\n       // get the identifier of the reference\n      if (commentsRef.remoteType() === \"ids\") {\n        let ids = commentsRef.ids();\n      } else if (commentsRef.remoteType() === \"link\") {\n        let link = commentsRef.link();\n      }\n       // load comments (via store.findMany or store.findHasMany)\n      commentsRef.load().then(...)\n       // or trigger a reload\n      commentsRef.reload().then(...)\n       // provide data for reference\n      commentsRef.push([{ type: 'comment', id: 1 }, { type: 'comment', id: 2 }]).then(function(comments) {\n        commentsRef.value() === comments;\n      });\n      ```\n       @method hasMany\n      @param {String} name of the relationship\n      @since 2.5.0\n      @return {HasManyReference} reference for this relationship\n    */\n    hasMany(name) {\n      return this._internalModel.referenceFor('hasMany', name);\n    },\n\n    /**\n     Provides info about the model for debugging purposes\n     by grouping the properties into more semantic groups.\n      Meant to be used by debugging tools such as the Chrome Ember Extension.\n      - Groups all attributes in \"Attributes\" group.\n     - Groups all belongsTo relationships in \"Belongs To\" group.\n     - Groups all hasMany relationships in \"Has Many\" group.\n     - Groups all flags in \"Flags\" group.\n     - Flags relationship CPs as expensive properties.\n      @method _debugInfo\n     @for Model\n     @private\n     */\n    _debugInfo() {\n      var attributes = ['id'];\n      var relationships = {};\n      var expensiveProperties = [];\n      this.eachAttribute((name, meta) => attributes.push(name));\n      var groups = [{\n        name: 'Attributes',\n        properties: attributes,\n        expand: true\n      }];\n      this.eachRelationship((name, relationship) => {\n        var properties = relationships[relationship.kind];\n\n        if (properties === undefined) {\n          properties = relationships[relationship.kind] = [];\n          groups.push({\n            name: relationship.kind,\n            properties,\n            expand: true\n          });\n        }\n\n        properties.push(name);\n        expensiveProperties.push(name);\n      });\n      groups.push({\n        name: 'Flags',\n        properties: ['isLoaded', 'hasDirtyAttributes', 'isSaving', 'isDeleted', 'isError', 'isNew', 'isValid']\n      });\n      return {\n        propertyInfo: {\n          // include all other mixins / properties (not just the grouped ones)\n          includeOtherProperties: true,\n          groups: groups,\n          // don't pre-calculate unless cached\n          expensiveProperties: expensiveProperties\n        }\n      };\n    },\n\n    notifyBelongsToChange(key) {\n      this.notifyPropertyChange(key);\n    },\n\n    /**\n     Given a callback, iterates over each of the relationships in the model,\n     invoking the callback with the name of each relationship and its relationship\n     descriptor.\n       The callback method you provide should have the following signature (all\n     parameters are optional):\n      ```javascript\n     function(name, descriptor);\n     ```\n      - `name` the name of the current property in the iteration\n     - `descriptor` the meta object that describes this relationship\n      The relationship descriptor argument is an object with the following properties.\n      - **key** <span class=\"type\">String</span> the name of this relationship on the Model\n     - **kind** <span class=\"type\">String</span> \"hasMany\" or \"belongsTo\"\n     - **options** <span class=\"type\">Object</span> the original options hash passed when the relationship was declared\n     - **parentType** <span class=\"type\">Model</span> the type of the Model that owns this relationship\n     - **type** <span class=\"type\">String</span> the type name of the related Model\n      Note that in addition to a callback, you can also pass an optional target\n     object that will be set as `this` on the context.\n      Example\n      ```app/serializers/application.js\n     import JSONSerializer from '@ember-data/serializer/json';\n      export default JSONSerializer.extend({\n      serialize: function(record, options) {\n        let json = {};\n         record.eachRelationship(function(name, descriptor) {\n          if (descriptor.kind === 'hasMany') {\n            let serializedHasManyName = name.toUpperCase() + '_IDS';\n            json[serializedHasManyName] = record.get(name).mapBy('id');\n          }\n        });\n         return json;\n      }\n    });\n     ```\n      @method eachRelationship\n     @param {Function} callback the callback to invoke\n     @param {any} binding the value to which the callback's `this` should be bound\n     */\n    eachRelationship(callback, binding) {\n      this.constructor.eachRelationship(callback, binding);\n    },\n\n    relationshipFor(name) {\n      return Ember.get(this.constructor, 'relationshipsByName').get(name);\n    },\n\n    inverseFor(key) {\n      return this.constructor.inverseFor(key, this._internalModel.store);\n    },\n\n    notifyHasManyAdded(key) {\n      //We need to notifyPropertyChange in the adding case because we need to make sure\n      //we fetch the newly added record in case it is unloaded\n      //TODO(Igor): Consider whether we could do this only if the record state is unloaded\n      this.notifyPropertyChange(key);\n    },\n\n    eachAttribute(callback, binding) {\n      this.constructor.eachAttribute(callback, binding);\n    }\n\n  });\n\n  {\n    /**\n    Override the default event firing from Ember.Evented to\n    also call methods with the given name.\n     @method trigger\n    @private\n    @param {String} name\n    */\n    Model.reopen({\n      trigger(name) {\n        {\n          var fn = this[name];\n\n          if (typeof fn === 'function') {\n            var length = arguments.length;\n            var args = new Array(length - 1);\n\n            for (var i = 1; i < length; i++) {\n              args[i - 1] = arguments[i];\n            }\n\n            fn.apply(this, args);\n          }\n        }\n\n        var _hasEvent =  this._has(name) ;\n\n        if (_hasEvent) {\n          this._super(...arguments);\n        }\n      }\n\n    });\n  }\n\n  {\n    /**\n    @property data\n    @private\n    @deprecated\n    @type {Object}\n    */\n    Object.defineProperty(Model.prototype, 'data', {\n      configurable: false,\n\n      get() {\n        ( Ember.deprecate(`Model.data was private and it's use has been deprecated. For public access, use the RecordData API or iterate attributes`, false, {\n          id: 'ember-data:Model.data',\n          until: '3.9'\n        }));\n        return Private.recordDataFor(this)._data;\n      }\n\n    });\n  }\n\n  {\n    /**\n      Use [JSONSerializer](JSONSerializer.html) to\n      get the JSON representation of a record.\n       `toJSON` takes an optional hash as a parameter, currently\n      supported options are:\n       - `includeId`: `true` if the record's ID should be included in the\n        JSON representation.\n       @method toJSON\n      @param {Object} options\n      @return {Object} A JSON representation of the object.\n    */\n    Model.reopen({\n      toJSON(options) {\n        // container is for lazy transform lookups\n        ( Ember.deprecate(`Called the built-in \\`toJSON\\` on the record \"${this.constructor.modelName}:${this.id}\". The built-in \\`toJSON\\` method on instances of classes extending \\`Model\\` is deprecated. For more information see the link below.`, false, {\n          id: 'ember-data:model.toJSON',\n          until: '4.0',\n          url: 'https://deprecations.emberjs.com/ember-data/v3.x#toc_record-toJSON'\n        }));\n\n        var serializer = this._internalModel.store.serializerFor('-default');\n\n        var snapshot = this._internalModel.createSnapshot();\n\n        return serializer.serialize(snapshot, options);\n      }\n\n    });\n  }\n\n  var ID_DESCRIPTOR = {\n    configurable: false,\n\n    set(id) {\n      var normalizedId = Private.coerceId(id);\n\n      if (normalizedId !== null) {\n        this._internalModel.setId(normalizedId);\n      }\n    },\n\n    get() {\n      // the _internalModel guard exists, because some dev-only deprecation code\n      // (addListener via validatePropertyInjections) invokes toString before the\n      // object is real.\n      {\n        if (!this._internalModel) {\n          return;\n        }\n      }\n\n      Ember.get(this._internalModel, '_tag');\n      return this._internalModel.id;\n    }\n\n  };\n  Object.defineProperty(Model.prototype, 'id', ID_DESCRIPTOR);\n\n  {\n    var lookupDescriptor = function lookupDescriptor(obj, keyName) {\n      var current = obj;\n\n      do {\n        var descriptor = Object.getOwnPropertyDescriptor(current, keyName);\n\n        if (descriptor !== undefined) {\n          return descriptor;\n        }\n\n        current = Object.getPrototypeOf(current);\n      } while (current !== null);\n\n      return null;\n    };\n\n    var isBasicDesc = function isBasicDesc(desc) {\n      return !desc || !desc.get && !desc.set && desc.enumerable === true && desc.writable === true && desc.configurable === true;\n    };\n\n    var isDefaultEmptyDescriptor = function isDefaultEmptyDescriptor(obj, keyName) {\n      var instanceDesc = lookupDescriptor(obj, keyName);\n      return isBasicDesc(instanceDesc) && lookupDescriptor(obj.constructor, keyName) === null;\n    };\n\n    var lookupDeprecations;\n\n    var _deprecatedLifecycleMethods;\n\n    {\n      var INSTANCE_DEPRECATIONS = new WeakMap();\n      _deprecatedLifecycleMethods = ['becameError', 'becameInvalid', 'didCreate', 'didDelete', 'didLoad', 'didUpdate', 'ready', 'rolledBack'];\n\n      lookupDeprecations = function lookupInstanceDeprecations(instance) {\n        var deprecations = INSTANCE_DEPRECATIONS.get(instance);\n\n        if (!deprecations) {\n          deprecations = new Set();\n          INSTANCE_DEPRECATIONS.set(instance, deprecations);\n        }\n\n        return deprecations;\n      };\n    }\n\n    Model.reopen({\n      init() {\n        this._super(...arguments);\n\n        {\n          this._getDeprecatedEventedInfo = () => `${this._internalModel.modelName}#${this.id}`;\n        }\n\n        if (!isDefaultEmptyDescriptor(this, '_internalModel') || !(this._internalModel instanceof Private.InternalModel)) {\n          throw new Error(`'_internalModel' is a reserved property name on instances of classes extending Model. Please choose a different property name for ${this.constructor.toString()}`);\n        }\n\n        if (!isDefaultEmptyDescriptor(this, 'currentState') || this.get('currentState') !== this._internalModel.currentState) {\n          throw new Error(`'currentState' is a reserved property name on instances of classes extending Model. Please choose a different property name for ${this.constructor.toString()}`);\n        }\n\n        var idDesc = lookupDescriptor(this, 'id');\n\n        if (idDesc.get !== ID_DESCRIPTOR.get) {\n          throw new Ember.Error(`You may not set 'id' as an attribute on your model. Please remove any lines that look like: \\`id: attr('<type>')\\` from ${this.constructor.toString()}`);\n        }\n\n        {\n          var lifecycleDeprecations = lookupDeprecations(this.constructor);\n\n          _deprecatedLifecycleMethods.forEach(methodName => {\n            if (typeof this[methodName] === 'function' && !lifecycleDeprecations.has(methodName)) {\n              ( Ember.deprecate(`You defined a \\`${methodName}\\` method for ${this.constructor.toString()} but lifecycle events for models have been deprecated.`, false, {\n                id: 'ember-data:record-lifecycle-event-methods',\n                until: '4.0',\n                url: 'https://deprecations.emberjs.com/ember-data/v3.x#toc_record-lifecycle-event-methods'\n              }));\n              lifecycleDeprecations.add(methodName);\n            }\n          });\n        }\n      }\n\n    });\n  }\n\n  Model.reopenClass({\n    isModel: true,\n\n    /**\n      Create should only ever be called by the store. To create an instance of a\n      `Model` in a dirty state use `store.createRecord`.\n      To create instances of `Model` in a clean state, use `store.push`\n       @method create\n      @private\n      @static\n    */\n\n    /**\n     Represents the model's class name as a string. This can be used to look up the model's class name through\n     `Store`'s modelFor method.\n      `modelName` is generated for you by Ember Data. It will be a lowercased, dasherized string.\n     For example:\n      ```javascript\n     store.modelFor('post').modelName; // 'post'\n     store.modelFor('blog-post').modelName; // 'blog-post'\n     ```\n      The most common place you'll want to access `modelName` is in your serializer's `payloadKeyFromModelName` method. For example, to change payload\n     keys to underscore (instead of dasherized), you might use the following code:\n      ```javascript\n     import RESTSerializer from '@ember-data/serializer/rest';\n     import { underscore } from '@ember/string';\n      export default const PostSerializer = RESTSerializer.extend({\n       payloadKeyFromModelName(modelName) {\n         return underscore(modelName);\n       }\n     });\n     ```\n     @property modelName\n     @type String\n     @readonly\n     @static\n    */\n    modelName: null,\n\n    /*\n     These class methods below provide relationship\n     introspection abilities about relationships.\n      A note about the computed properties contained here:\n      **These properties are effectively sealed once called for the first time.**\n     To avoid repeatedly doing expensive iteration over a model's fields, these\n     values are computed once and then cached for the remainder of the runtime of\n     your application.\n      If your application needs to modify a class after its initial definition\n     (for example, using `reopen()` to add additional attributes), make sure you\n     do it before using your model with the store, which uses these properties\n     extensively.\n     */\n\n    /**\n     For a given relationship name, returns the model type of the relationship.\n      For example, if you define a model like this:\n      ```app/models/post.js\n     import Model, { hasMany } from '@ember-data/model';\n      export default Model.extend({\n        comments: hasMany('comment')\n      });\n     ```\n      Calling `store.modelFor('post').typeForRelationship('comments', store)` will return `Comment`.\n      @method typeForRelationship\n     @static\n     @param {String} name the name of the relationship\n     @param {store} store an instance of Store\n     @return {Model} the type of the relationship, or undefined\n     */\n    typeForRelationship(name, store) {\n      var relationship = Ember.get(this, 'relationshipsByName').get(name);\n      return relationship && store.modelFor(relationship.type);\n    },\n\n    inverseMap: Ember.computed(function () {\n      return Object.create(null);\n    }),\n\n    /**\n     Find the relationship which is the inverse of the one asked for.\n      For example, if you define models like this:\n      ```app/models/post.js\n     import Model, { hasMany } from '@ember-data/model';\n      export default Model.extend({\n        comments: hasMany('message')\n      });\n     ```\n      ```app/models/message.js\n     import Model, { belongsTo } from '@ember-data/model';\n      export default Model.extend({\n        owner: belongsTo('post')\n      });\n     ```\n      ``` js\n     store.modelFor('post').inverseFor('comments', store) // { type: App.Message, name: 'owner', kind: 'belongsTo' }\n     store.modelFor('message').inverseFor('owner', store) // { type: App.Post, name: 'comments', kind: 'hasMany' }\n     ```\n      @method inverseFor\n     @static\n     @param {String} name the name of the relationship\n     @param {Store} store\n     @return {Object} the inverse relationship, or null\n     */\n    inverseFor(name, store) {\n      var inverseMap = Ember.get(this, 'inverseMap');\n\n      if (inverseMap[name]) {\n        return inverseMap[name];\n      } else {\n        var inverse = this._findInverseFor(name, store);\n\n        inverseMap[name] = inverse;\n        return inverse;\n      }\n    },\n\n    //Calculate the inverse, ignoring the cache\n    _findInverseFor(name, store) {\n      var inverseType = this.typeForRelationship(name, store);\n\n      if (!inverseType) {\n        return null;\n      }\n\n      var propertyMeta = this.metaForProperty(name); //If inverse is manually specified to be null, like  `comments: hasMany('message', { inverse: null })`\n\n      var options = propertyMeta.options;\n\n      if (options.inverse === null) {\n        return null;\n      }\n\n      var inverseName, inverseKind, inverse, inverseOptions; //If inverse is specified manually, return the inverse\n\n      if (options.inverse) {\n        inverseName = options.inverse;\n        inverse = Ember.get(inverseType, 'relationshipsByName').get(inverseName);\n        ( !(!Ember.isNone(inverse)) && Ember.assert(\"We found no inverse relationships by the name of '\" + inverseName + \"' on the '\" + inverseType.modelName + \"' model. This is most likely due to a missing attribute on your model definition.\", !Ember.isNone(inverse))); // TODO probably just return the whole inverse here\n\n        inverseKind = inverse.kind;\n        inverseOptions = inverse.options;\n      } else {\n        //No inverse was specified manually, we need to use a heuristic to guess one\n        if (propertyMeta.type === propertyMeta.parentModelName) {\n          ( Ember.warn(`Detected a reflexive relationship by the name of '${name}' without an inverse option. Look at https://guides.emberjs.com/current/models/relationships/#toc_reflexive-relations for how to explicitly specify inverses.`, false, {\n            id: 'ds.model.reflexive-relationship-without-inverse'\n          }));\n        }\n\n        var possibleRelationships = findPossibleInverses(this, inverseType, name);\n\n        if (possibleRelationships.length === 0) {\n          return null;\n        }\n\n        var filteredRelationships = possibleRelationships.filter(possibleRelationship => {\n          var optionsForRelationship = inverseType.metaForProperty(possibleRelationship.name).options;\n          return name === optionsForRelationship.inverse;\n        });\n        ( !(filteredRelationships.length < 2) && Ember.assert(\"You defined the '\" + name + \"' relationship on \" + this + ', but you defined the inverse relationships of type ' + inverseType.toString() + ' multiple times. Look at https://guides.emberjs.com/current/models/relationships/#toc_explicit-inverses for how to explicitly specify inverses', filteredRelationships.length < 2));\n\n        if (filteredRelationships.length === 1) {\n          possibleRelationships = filteredRelationships;\n        }\n\n        ( !(possibleRelationships.length === 1) && Ember.assert(\"You defined the '\" + name + \"' relationship on \" + this + ', but multiple possible inverse relationships of type ' + this + ' were found on ' + inverseType + '. Look at https://guides.emberjs.com/current/models/relationships/#toc_explicit-inverses for how to explicitly specify inverses', possibleRelationships.length === 1));\n        inverseName = possibleRelationships[0].name;\n        inverseKind = possibleRelationships[0].kind;\n        inverseOptions = possibleRelationships[0].options;\n      }\n\n      ( !(!inverseOptions || inverseOptions.inverse !== null) && Ember.assert(`The ${inverseType.modelName}:${inverseName} relationship declares 'inverse: null', but it was resolved as the inverse for ${this.modelName}:${name}.`, !inverseOptions || inverseOptions.inverse !== null));\n      return {\n        type: inverseType,\n        name: inverseName,\n        kind: inverseKind,\n        options: inverseOptions\n      };\n    },\n\n    /**\n     The model's relationships as a map, keyed on the type of the\n     relationship. The value of each entry is an array containing a descriptor\n     for each relationship with that type, describing the name of the relationship\n     as well as the type.\n      For example, given the following model definition:\n      ```app/models/blog.js\n     import Model, { belongsTo, hasMany } from '@ember-data/model';\n      export default Model.extend({\n        users: hasMany('user'),\n        owner: belongsTo('user'),\n        posts: hasMany('post')\n      });\n     ```\n      This computed property would return a map describing these\n     relationships, like this:\n      ```javascript\n     import Ember from 'ember';\n     import Blog from 'app/models/blog';\n     import User from 'app/models/user';\n     import Post from 'app/models/post';\n      let relationships = Ember.get(Blog, 'relationships');\n     relationships.get('user');\n     //=> [ { name: 'users', kind: 'hasMany' },\n     //     { name: 'owner', kind: 'belongsTo' } ]\n     relationships.get('post');\n     //=> [ { name: 'posts', kind: 'hasMany' } ]\n     ```\n      @property relationships\n     @static\n     @type Map\n     @readOnly\n     */\n    relationships: relationshipsDescriptor,\n\n    /**\n     A hash containing lists of the model's relationships, grouped\n     by the relationship kind. For example, given a model with this\n     definition:\n      ```app/models/blog.js\n     import Model, { belongsTo, hasMany } from '@ember-data/model';\n      export default Model.extend({\n        users: hasMany('user'),\n        owner: belongsTo('user'),\n         posts: hasMany('post')\n      });\n     ```\n      This property would contain the following:\n      ```javascript\n     import Ember from 'ember';\n     import Blog from 'app/models/blog';\n      let relationshipNames = Ember.get(Blog, 'relationshipNames');\n     relationshipNames.hasMany;\n     //=> ['users', 'posts']\n     relationshipNames.belongsTo;\n     //=> ['owner']\n     ```\n      @property relationshipNames\n     @static\n     @type Object\n     @readOnly\n     */\n    relationshipNames: Ember.computed(function () {\n      var names = {\n        hasMany: [],\n        belongsTo: []\n      };\n      this.eachComputedProperty((name, meta) => {\n        if (meta.isRelationship) {\n          names[meta.kind].push(name);\n        }\n      });\n      return names;\n    }),\n\n    /**\n     An array of types directly related to a model. Each type will be\n     included once, regardless of the number of relationships it has with\n     the model.\n      For example, given a model with this definition:\n      ```app/models/blog.js\n     import Model, { belongsTo, hasMany } from '@ember-data/model';\n      export default Model.extend({\n        users: hasMany('user'),\n        owner: belongsTo('user'),\n         posts: hasMany('post')\n      });\n     ```\n      This property would contain the following:\n      ```javascript\n     import Ember from 'ember';\n     import Blog from 'app/models/blog';\n      let relatedTypes = Ember.get(Blog, 'relatedTypes');\n     //=> [ User, Post ]\n     ```\n      @property relatedTypes\n     @static\n     @type Ember.Array\n     @readOnly\n     */\n    relatedTypes: relatedTypesDescriptor,\n\n    /**\n     A map whose keys are the relationships of a model and whose values are\n     relationship descriptors.\n      For example, given a model with this\n     definition:\n      ```app/models/blog.js\n     import Model, { belongsTo, hasMany } from '@ember-data/model';\n      export default Model.extend({\n        users: hasMany('user'),\n        owner: belongsTo('user'),\n         posts: hasMany('post')\n      });\n     ```\n      This property would contain the following:\n      ```javascript\n     import Ember from 'ember';\n     import Blog from 'app/models/blog';\n      let relationshipsByName = Ember.get(Blog, 'relationshipsByName');\n     relationshipsByName.get('users');\n     //=> { key: 'users', kind: 'hasMany', type: 'user', options: Object, isRelationship: true }\n     relationshipsByName.get('owner');\n     //=> { key: 'owner', kind: 'belongsTo', type: 'user', options: Object, isRelationship: true }\n     ```\n      @property relationshipsByName\n     @static\n     @type Map\n     @readOnly\n     */\n    relationshipsByName: relationshipsByNameDescriptor,\n    relationshipsObject: relationshipsObjectDescriptor,\n\n    /**\n     A map whose keys are the fields of the model and whose values are strings\n     describing the kind of the field. A model's fields are the union of all of its\n     attributes and relationships.\n      For example:\n      ```app/models/blog.js\n     import Model, { attr, belongsTo, hasMany } from '@ember-data/model';\n      export default Model.extend({\n        users: hasMany('user'),\n        owner: belongsTo('user'),\n         posts: hasMany('post'),\n         title: attr('string')\n      });\n     ```\n      ```js\n     import Ember from 'ember';\n     import Blog from 'app/models/blog';\n      let fields = Ember.get(Blog, 'fields');\n     fields.forEach(function(kind, field) {\n        console.log(field, kind);\n      });\n      // prints:\n     // users, hasMany\n     // owner, belongsTo\n     // posts, hasMany\n     // title, attribute\n     ```\n      @property fields\n     @static\n     @type Map\n     @readOnly\n     */\n    fields: Ember.computed(function () {\n      var map = new Map();\n      this.eachComputedProperty((name, meta) => {\n        if (meta.isRelationship) {\n          map.set(name, meta.kind);\n        } else if (meta.isAttribute) {\n          map.set(name, 'attribute');\n        }\n      });\n      return map;\n    }).readOnly(),\n\n    /**\n     Given a callback, iterates over each of the relationships in the model,\n     invoking the callback with the name of each relationship and its relationship\n     descriptor.\n      @method eachRelationship\n     @static\n     @param {Function} callback the callback to invoke\n     @param {any} binding the value to which the callback's `this` should be bound\n     */\n    eachRelationship(callback, binding) {\n      Ember.get(this, 'relationshipsByName').forEach((relationship, name) => {\n        callback.call(binding, name, relationship);\n      });\n    },\n\n    /**\n     Given a callback, iterates over each of the types related to a model,\n     invoking the callback with the related type's class. Each type will be\n     returned just once, regardless of how many different relationships it has\n     with a model.\n      @method eachRelatedType\n     @static\n     @param {Function} callback the callback to invoke\n     @param {any} binding the value to which the callback's `this` should be bound\n     */\n    eachRelatedType(callback, binding) {\n      var relationshipTypes = Ember.get(this, 'relatedTypes');\n\n      for (var i = 0; i < relationshipTypes.length; i++) {\n        var type = relationshipTypes[i];\n        callback.call(binding, type);\n      }\n    },\n\n    determineRelationshipType(knownSide, store) {\n      var knownKey = knownSide.key;\n      var knownKind = knownSide.kind;\n      var inverse = this.inverseFor(knownKey, store); // let key;\n\n      var otherKind;\n\n      if (!inverse) {\n        return knownKind === 'belongsTo' ? 'oneToNone' : 'manyToNone';\n      } // key = inverse.name;\n\n\n      otherKind = inverse.kind;\n\n      if (otherKind === 'belongsTo') {\n        return knownKind === 'belongsTo' ? 'oneToOne' : 'manyToOne';\n      } else {\n        return knownKind === 'belongsTo' ? 'oneToMany' : 'manyToMany';\n      }\n    },\n\n    /**\n     A map whose keys are the attributes of the model (properties\n     described by attr) and whose values are the meta object for the\n     property.\n      Example\n      ```app/models/person.js\n     import Model, { attr } from '@ember-data/model';\n      export default Model.extend({\n        firstName: attr('string'),\n        lastName: attr('string'),\n        birthday: attr('date')\n      });\n     ```\n      ```javascript\n     import Ember from 'ember';\n     import Person from 'app/models/person';\n      let attributes = Ember.get(Person, 'attributes')\n      attributes.forEach(function(meta, name) {\n        console.log(name, meta);\n      });\n      // prints:\n     // firstName {type: \"string\", isAttribute: true, options: Object, parentType: function, name: \"firstName\"}\n     // lastName {type: \"string\", isAttribute: true, options: Object, parentType: function, name: \"lastName\"}\n     // birthday {type: \"date\", isAttribute: true, options: Object, parentType: function, name: \"birthday\"}\n     ```\n      @property attributes\n     @static\n     @type {Map}\n     @readOnly\n     */\n    attributes: Ember.computed(function () {\n      var map = new Map();\n      this.eachComputedProperty((name, meta) => {\n        if (meta.isAttribute) {\n          ( !(name !== 'id') && Ember.assert(\"You may not set `id` as an attribute on your model. Please remove any lines that look like: `id: attr('<type>')` from \" + this.toString(), name !== 'id'));\n          meta.name = name;\n          map.set(name, meta);\n        }\n      });\n      return map;\n    }).readOnly(),\n\n    /**\n     A map whose keys are the attributes of the model (properties\n     described by attr) and whose values are type of transformation\n     applied to each attribute. This map does not include any\n     attributes that do not have an transformation type.\n      Example\n      ```app/models/person.js\n     import Model, { attr } from '@ember-data/model';\n      export default Model.extend({\n        firstName: attr(),\n        lastName: attr('string'),\n        birthday: attr('date')\n      });\n     ```\n      ```javascript\n     import Ember from 'ember';\n     import Person from 'app/models/person';\n      let transformedAttributes = Ember.get(Person, 'transformedAttributes')\n      transformedAttributes.forEach(function(field, type) {\n        console.log(field, type);\n      });\n      // prints:\n     // lastName string\n     // birthday date\n     ```\n      @property transformedAttributes\n     @static\n     @type {Map}\n     @readOnly\n     */\n    transformedAttributes: Ember.computed(function () {\n      var map = new Map();\n      this.eachAttribute((key, meta) => {\n        if (meta.type) {\n          map.set(key, meta.type);\n        }\n      });\n      return map;\n    }).readOnly(),\n\n    /**\n     Iterates through the attributes of the model, calling the passed function on each\n     attribute.\n      The callback method you provide should have the following signature (all\n     parameters are optional):\n      ```javascript\n     function(name, meta);\n     ```\n      - `name` the name of the current property in the iteration\n     - `meta` the meta object for the attribute property in the iteration\n      Note that in addition to a callback, you can also pass an optional target\n     object that will be set as `this` on the context.\n      Example\n      ```javascript\n     import Model, { attr } from '@ember-data/model';\n      let Person = Model.extend({\n        firstName: attr('string'),\n        lastName: attr('string'),\n        birthday: attr('date')\n      });\n      Person.eachAttribute(function(name, meta) {\n        console.log(name, meta);\n      });\n      // prints:\n     // firstName {type: \"string\", isAttribute: true, options: Object, parentType: function, name: \"firstName\"}\n     // lastName {type: \"string\", isAttribute: true, options: Object, parentType: function, name: \"lastName\"}\n     // birthday {type: \"date\", isAttribute: true, options: Object, parentType: function, name: \"birthday\"}\n     ```\n      @method eachAttribute\n     @param {Function} callback The callback to execute\n     @param {Object} [binding] the value to which the callback's `this` should be bound\n     @static\n     */\n    eachAttribute(callback, binding) {\n      Ember.get(this, 'attributes').forEach((meta, name) => {\n        callback.call(binding, name, meta);\n      });\n    },\n\n    /**\n     Iterates through the transformedAttributes of the model, calling\n     the passed function on each attribute. Note the callback will not be\n     called for any attributes that do not have an transformation type.\n      The callback method you provide should have the following signature (all\n     parameters are optional):\n      ```javascript\n     function(name, type);\n     ```\n      - `name` the name of the current property in the iteration\n     - `type` a string containing the name of the type of transformed\n     applied to the attribute\n      Note that in addition to a callback, you can also pass an optional target\n     object that will be set as `this` on the context.\n      Example\n      ```javascript\n     import Model, { attr } from '@ember-data/model';\n      let Person = Model.extend({\n        firstName: attr(),\n        lastName: attr('string'),\n        birthday: attr('date')\n      });\n      Person.eachTransformedAttribute(function(name, type) {\n        console.log(name, type);\n      });\n      // prints:\n     // lastName string\n     // birthday date\n     ```\n      @method eachTransformedAttribute\n     @param {Function} callback The callback to execute\n     @param {Object} [binding] the value to which the callback's `this` should be bound\n     @static\n     */\n    eachTransformedAttribute(callback, binding) {\n      Ember.get(this, 'transformedAttributes').forEach((type, name) => {\n        callback.call(binding, name, type);\n      });\n    },\n\n    /**\n     Returns the name of the model class.\n      @method toString\n     @static\n     */\n    toString() {\n      return `model:${Ember.get(this, 'modelName')}`;\n    }\n\n  });\n\n  /**\n    A `ManyArray` is a `MutableArray` that represents the contents of a has-many\n    relationship.\n\n    The `ManyArray` is instantiated lazily the first time the relationship is\n    requested.\n\n    ### Inverses\n\n    Often, the relationships in Ember Data applications will have\n    an inverse. For example, imagine the following models are\n    defined:\n\n    ```app/models/post.js\n    import Model, { hasMany } from '@ember-data/model';\n\n    export default Model.extend({\n      comments: hasMany('comment')\n    });\n    ```\n\n    ```app/models/comment.js\n    import Model, { belongsTo } from '@ember-data/model';\n\n    export default Model.extend({\n      post: belongsTo('post')\n    });\n    ```\n\n    If you created a new instance of `Post` and added\n    a `Comment` record to its `comments` has-many\n    relationship, you would expect the comment's `post`\n    property to be set to the post that contained\n    the has-many.\n\n    We call the record to which a relationship belongs-to the\n    relationship's _owner_.\n\n    @class ManyArray\n    @extends EmberObject\n    @uses Ember.MutableArray, DeprecatedEvented\n  */\n\n  var manyArray = Ember.Object.extend(Ember.MutableArray, Private.DeprecatedEvented, {\n    // here to make TS happy\n    _inverseIsAsync: false,\n    isLoaded: false,\n\n    init() {\n      this._super(...arguments);\n      /**\n      The loading state of this array\n       @property {Boolean} isLoaded\n      */\n\n\n      this.isLoaded = this.isLoaded || false;\n      this.length = 0;\n      /**\n      Used for async `hasMany` arrays\n      to keep track of when they will resolve.\n       @property {Ember.RSVP.Promise} promise\n      @private\n      */\n\n      this.promise = null;\n      /**\n      Metadata associated with the request for async hasMany relationships.\n       Example\n       Given that the server returns the following JSON payload when fetching a\n      hasMany relationship:\n       ```js\n      {\n        \"comments\": [{\n          \"id\": 1,\n          \"comment\": \"This is the first comment\",\n        }, {\n      // ...\n        }],\n         \"meta\": {\n          \"page\": 1,\n          \"total\": 5\n        }\n      }\n      ```\n       You can then access the metadata via the `meta` property:\n       ```js\n      post.get('comments').then(function(comments) {\n        var meta = comments.get('meta');\n       // meta.page => 1\n      // meta.total => 5\n      });\n      ```\n       @property {Object} meta\n      @public\n      */\n      // TODO this is likely broken in our refactor\n\n      this.meta = this.meta || null;\n      /**\n      `true` if the relationship is polymorphic, `false` otherwise.\n       @property {Boolean} isPolymorphic\n      @private\n      */\n\n      this.isPolymorphic = this.isPolymorphic || false;\n      /**\n      The relationship which manages this array.\n       @property {ManyRelationship} relationship\n      @private\n      */\n\n      this.currentState = [];\n      this.flushCanonical(this.initialState, false); // we don't need this anymore, it just prevents garbage collection the records in the initialState\n\n      this.initialState = undefined;\n    },\n\n    // TODO: if(DEBUG)\n    anyUnloaded() {\n      // Use `filter[0]` as opposed to `find` because of IE11\n      var unloaded = this.currentState.filter(im => im._isDematerializing || !im.isLoaded())[0];\n      return !!unloaded;\n    },\n\n    removeUnloadedInternalModel() {\n      for (var i = 0; i < this.currentState.length; ++i) {\n        var internalModel = this.currentState[i];\n        var shouldRemove = void 0;\n\n        {\n          shouldRemove = internalModel._isDematerializing || !internalModel.isLoaded();\n        }\n\n        if (shouldRemove) {\n          this.arrayContentWillChange(i, 1, 0);\n          this.currentState.splice(i, 1);\n          this.set('length', this.currentState.length);\n          this.arrayContentDidChange(i, 1, 0);\n          return true;\n        }\n      }\n\n      return false;\n    },\n\n    objectAt(index) {\n      // TODO we likely need to force flush here\n\n      /*\n      if (this.relationship._willUpdateManyArray) {\n        this.relationship._flushPendingManyArrayUpdates();\n      }\n      */\n      var internalModel = this.currentState[index];\n\n      if (internalModel === undefined) {\n        return;\n      }\n\n      return internalModel.getRecord();\n    },\n\n    flushCanonical(toSet, isInitialized = true) {\n      // It’s possible the parent side of the relationship may have been unloaded by this point\n      if (!Private._objectIsAlive(this)) {\n        return;\n      } // diff to find changes\n\n\n      var diff = Private.diffArray(this.currentState, toSet);\n\n      if (diff.firstChangeIndex !== null) {\n        // it's null if no change found\n        // we found a change\n        this.arrayContentWillChange(diff.firstChangeIndex, diff.removedCount, diff.addedCount);\n        this.set('length', toSet.length);\n        this.currentState = toSet.slice();\n        this.arrayContentDidChange(diff.firstChangeIndex, diff.removedCount, diff.addedCount);\n\n        if (isInitialized && diff.addedCount > 0) {\n          //notify only on additions\n          //TODO only notify if unloaded\n          this.internalModel.manyArrayRecordAdded(this.get('key'));\n        }\n      }\n    },\n\n    replace(idx, amt, objects) {\n      var internalModels;\n\n      if (amt > 0) {\n        internalModels = this.currentState.slice(idx, idx + amt);\n        this.get('recordData').removeFromHasMany(this.get('key'), internalModels.map(im => Private.recordDataFor(im)));\n      }\n\n      if (objects) {\n        ( !(Array.isArray(objects) || Ember.Array.detect(objects)) && Ember.assert('The third argument to replace needs to be an array.', Array.isArray(objects) || Ember.Array.detect(objects)));\n        this.get('recordData').addToHasMany(this.get('key'), objects.map(obj => Private.recordDataFor(obj)), idx);\n      }\n\n      this.retrieveLatest();\n    },\n\n    // Ok this is kinda funky because if buggy we might lose positions, etc.\n    // but current code is this way so shouldn't be too big of a problem\n    retrieveLatest() {\n      var jsonApi = this.get('recordData').getHasMany(this.get('key')); // TODO this is odd, why should ManyArray ever tell itself to resync?\n\n      var internalModels = this.store._getHasManyByJsonApiResource(jsonApi);\n\n      if (jsonApi.meta) {\n        this.set('meta', jsonApi.meta);\n      }\n\n      {\n        if (jsonApi.links) {\n          this.set('links', jsonApi.links);\n        }\n      }\n\n      this.flushCanonical(internalModels, true);\n    },\n\n    /**\n      Reloads all of the records in the manyArray. If the manyArray\n      holds a relationship that was originally fetched using a links url\n      Ember Data will revisit the original links url to repopulate the\n      relationship.\n       If the manyArray holds the result of a `store.query()` reload will\n      re-run the original query.\n       Example\n       ```javascript\n      var user = store.peekRecord('user', 1)\n      user.login().then(function() {\n        user.get('permissions').then(function(permissions) {\n          return permissions.reload();\n        });\n      });\n      ```\n       @method reload\n      @public\n    */\n    reload(options) {\n      // TODO this is odd, we don't ask the store for anything else like this?\n      return this.get('store').reloadManyArray(this, this.get('internalModel'), this.get('key'), options);\n    },\n\n    /**\n      Saves all of the records in the `ManyArray`.\n       Example\n       ```javascript\n      store.findRecord('inbox', 1).then(function(inbox) {\n        inbox.get('messages').then(function(messages) {\n          messages.forEach(function(message) {\n            message.set('isRead', true);\n          });\n          messages.save()\n        });\n      });\n      ```\n       @method save\n      @return {PromiseArray} promise\n    */\n    save() {\n      var manyArray = this;\n      var promiseLabel = 'DS: ManyArray#save ' + Ember.get(this, 'type');\n      var promise = Ember.RSVP.all(this.invoke('save'), promiseLabel).then(() => manyArray, null, 'DS: ManyArray#save return ManyArray');\n      return Private.PromiseArray.create({\n        promise\n      });\n    },\n\n    /**\n      Create a child record within the owner\n       @method createRecord\n      @private\n      @param {Object} hash\n      @return {Model} record\n    */\n    createRecord(hash) {\n      var store = Ember.get(this, 'store');\n      var type = Ember.get(this, 'type');\n      ( !(!Ember.get(this, 'isPolymorphic')) && Ember.assert(`You cannot add '${type.modelName}' records to this polymorphic relationship.`, !Ember.get(this, 'isPolymorphic')));\n      var record = store.createRecord(type.modelName, hash);\n      this.pushObject(record);\n      return record;\n    }\n\n  });\n\n  /**\n   @module @ember-data/model\n   */\n\n  /**\n    A PromiseBelongsTo is a PromiseObject that also proxies certain method calls\n    to the underlying belongsTo model.\n    Right now we proxy:\n\n      * `reload()`\n\n    @class PromiseBelongsTo\n    @extends PromiseObject\n    @private\n  */\n\n  var PromiseBelongsTo = Private.PromiseObject.extend({\n    // we don't proxy meta because we would need to proxy it to the relationship state container\n    //  however, meta on relationships does not trigger change notifications.\n    //  if you need relationship meta, you should do `record.belongsTo(relationshipName).meta()`\n    meta: Ember.computed(function () {\n      ( Ember.assert('You attempted to access meta on the promise for the async belongsTo relationship ' + `${this.get('_belongsToState').modelName}:${this.get('_belongsToState').key}'.` + '\\nUse `record.belongsTo(relationshipName).meta()` instead.', false));\n    }),\n\n    reload(options) {\n      ( !(this.get('content') !== undefined) && Ember.assert('You are trying to reload an async belongsTo before it has been created', this.get('content') !== undefined));\n      var {\n        key,\n        store,\n        originatingInternalModel\n      } = this._belongsToState;\n      return store.reloadBelongsTo(this, originatingInternalModel, key, options).then(() => this);\n    }\n\n  });\n\n  /**\n   @module @ember-data/model\n   */\n\n  /**\n    A PromiseManyArray is a PromiseArray that also proxies certain method calls\n    to the underlying manyArray.\n    Right now we proxy:\n\n      * `reload()`\n      * `createRecord()`\n      * `on()`\n      * `one()`\n      * `trigger()`\n      * `off()`\n      * `has()`\n\n    @class PromiseManyArray\n    @extends Ember.ArrayProxy\n    @private\n  */\n\n  var PromiseManyArray = Private.PromiseArray.extend({\n    links:  Ember.computed.reads('content.links') ,\n\n    reload(options) {\n      ( !(Ember.get(this, 'content')) && Ember.assert('You are trying to reload an async manyArray before it has been created', Ember.get(this, 'content')));\n      this.set('promise', this.get('content').reload(options));\n      return this;\n    },\n\n    createRecord: proxyToContent('createRecord'),\n    on: proxyToContent('on'),\n    one: proxyToContent('one'),\n    trigger: proxyToContent('trigger'),\n    off: proxyToContent('off'),\n    has: proxyToContent('has')\n  });\n\n  function proxyToContent(method) {\n    return function () {\n      return Ember.get(this, 'content')[method](...arguments);\n    };\n  }\n\n  /*\n      In case someone defined a relationship to a mixin, for example:\n      ```\n        let Comment = Model.extend({\n          owner: belongsTo('commentable'. { polymorphic: true })\n        });\n        let Commentable = Ember.Mixin.create({\n          comments: hasMany('comment')\n        });\n      ```\n      we want to look up a Commentable class which has all the necessary\n      relationship metadata. Thus, we look up the mixin and create a mock\n      Model, so we can access the relationship CPs of the mixin (`comments`)\n      in this case\n    */\n  function modelForMixin(store, normalizedModelName) {\n    var owner = Ember.getOwner(store);\n    var MaybeMixin = owner.factoryFor(`mixin:${normalizedModelName}`);\n    var mixin = MaybeMixin && MaybeMixin.class;\n\n    if (mixin) {\n      var ModelForMixin = Model.extend(mixin);\n      ModelForMixin.reopenClass({\n        __isMixin: true,\n        __mixin: mixin\n      }); //Cache the class as a model\n\n      owner.register('model:' + normalizedModelName, ModelForMixin);\n    }\n\n    return owner.factoryFor(`model:${normalizedModelName}`);\n  }\n\n  exports.Errors = Errors;\n  exports.ManyArray = manyArray;\n  exports.Model = Model;\n  exports.PromiseBelongsTo = PromiseBelongsTo;\n  exports.PromiseManyArray = PromiseManyArray;\n  exports._modelForMixin = modelForMixin;\n  exports.attr = attr$1;\n  exports.belongsTo = belongsTo$1;\n  exports.hasMany = hasMany$1;\n\n  Object.defineProperty(exports, '__esModule', { value: true });\n\n});\n","define(\"@ember-data/model/index\", [\"exports\", \"@ember-data/model/-private\"], function (_exports, _private) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"default\", {\n    enumerable: true,\n    get: function () {\n      return _private.Model;\n    }\n  });\n  Object.defineProperty(_exports, \"attr\", {\n    enumerable: true,\n    get: function () {\n      return _private.attr;\n    }\n  });\n  Object.defineProperty(_exports, \"belongsTo\", {\n    enumerable: true,\n    get: function () {\n      return _private.belongsTo;\n    }\n  });\n  Object.defineProperty(_exports, \"hasMany\", {\n    enumerable: true,\n    get: function () {\n      return _private.hasMany;\n    }\n  });\n});","define(\"@ember-data/private-build-infra/available-packages\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n  var _default = {\n    HAS_EMBER_DATA_PACKAGE: 'ember-data',\n    HAS_STORE_PACKAGE: '@ember-data/store',\n    HAS_MODEL_PACKAGE: '@ember-data/model',\n    HAS_RECORD_DATA_PACKAGE: '@ember-data/record-data',\n    HAS_ADAPTER_PACKAGE: '@ember-data/adapter',\n    HAS_SERIALIZER_PACKAGE: '@ember-data/serializer',\n    HAS_DEBUG_PACKAGE: '@ember-data/debug'\n  };\n  _exports.default = _default;\n});","define(\"@ember-data/private-build-infra/current-deprecations\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n   * ## Deprecations\n   *\n   * EmberData allows users to remove code that exists to support deprecated\n   * behaviors.\n   *\n   * If your app has resolved all deprecations present in a given version,\n   * you may specify that version as your \"compatibility\" version to remove\n   * the code that supported the deprecated behavior from your app.\n   *\n   * For instance, if a deprecation was introduced in 3.13, and the app specifies\n   * 3.13 as its minimum version compatibility, any deprecations introduced before\n   * or during 3.13 would be stripped away.\n   *\n   * An app can use a different version than what it specifies as it's compatibility\n   * version. For instance, an App could be using `3.16` while specifying compatibility\n   * with `3.12`. This would remove any deprecations that were present in or before `3.12`\n   * but keep support for anything deprecated in or abvoe `3.13`.\n   *\n   * ### Configuring Compatibility\n   *\n   * To configure your compatibility version, set the `compatWith` to the version you\n   * are compatible with on the `emberData` config in your `ember-cli-build.js` file.\n   *\n   * ```js\n   * let app = new EmberApp(defaults, {\n   *   emberData: {\n   *     compatWith: '3.12',\n   *   },\n   * });\n   * ```\n   *\n   * The complete list of which versions specific deprecations will be removed in\n   * can be found [here](https://github.com/emberjs/data/tree/master/packages/private-build-infra/addon/current-deprecations.ts \"List of EmberData Deprecations\")\n   *\n   * @module @ember-data/deprecations\n   * @main @ember-data/deprecations\n   */\n  var _default = {\n    DEPRECATE_CATCH_ALL: '99.0',\n    DEPRECATE_EVENTED_API_USAGE: '3.12',\n    DEPRECATE_RECORD_LIFECYCLE_EVENT_METHODS: '3.12',\n    DEPRECATE_MODEL_DATA: '3.8',\n    DEPRECATE_MODEL_TOJSON: '3.15',\n    DEPRECATE_LEGACY_TEST_HELPER_SUPPORT: '3.15',\n    DEPRECATE_LEGACY_TEST_REGISTRATIONS: '3.15',\n    DEPRECATE_DEFAULT_SERIALIZER: '3.15',\n    DEPRECATE_DEFAULT_ADAPTER: '3.15',\n    DEPRECATE_METHOD_CALLS_ON_DESTROY_STORE: '3.15',\n    DEPRECATE_MISMATCHED_INVERSE_RELATIONSHIP_DATA: '3.12',\n    DEPRECATE_SERIALIZER_QUERY_RECORD_ARRAY_RESPONSE: '3.4',\n    DEPRECATE_BELONGS_TO_REFERENCE_PUSH: '3.16'\n  };\n  _exports.default = _default;\n});","define(\"@ember-data/private-build-infra/deprecations\", [\"exports\", \"@ember-data/private-build-infra/current-deprecations\"], function (_exports, _currentDeprecations) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.DEPRECATE_MISMATCHED_INVERSE_RELATIONSHIP_DATA = _exports.DEPRECATE_SERIALIZER_QUERY_RECORD_ARRAY_RESPONSE = _exports.DEPRECATE_METHOD_CALLS_ON_DESTROY_STORE = _exports.DEPRECATE_DEFAULT_ADAPTER = _exports.DEPRECATE_DEFAULT_SERIALIZER = _exports.DEPRECATE_LEGACY_TEST_REGISTRATIONS = _exports.DEPRECATE_LEGACY_TEST_HELPER_SUPPORT = _exports.DEPRECATE_MODEL_TOJSON = _exports.DEPRECATE_MODEL_DATA = _exports.DEPRECATE_RECORD_LIFECYCLE_EVENT_METHODS = _exports.DEPRECATE_EVENTED_API_USAGE = _exports.DEPRECATE_CATCH_ALL = void 0;\n\n  function deprecationState(deprecationName) {\n    // if we hit this at runtime and the deprecation exists it is always activated\n    return deprecationName in _currentDeprecations.default;\n  } // deprecations\n\n\n  const DEPRECATE_CATCH_ALL = deprecationState('DEPRECATE_CATCH_ALL');\n  _exports.DEPRECATE_CATCH_ALL = DEPRECATE_CATCH_ALL;\n  const DEPRECATE_EVENTED_API_USAGE = deprecationState('DEPRECATE_EVENTED_API_USAGE');\n  _exports.DEPRECATE_EVENTED_API_USAGE = DEPRECATE_EVENTED_API_USAGE;\n  const DEPRECATE_RECORD_LIFECYCLE_EVENT_METHODS = deprecationState('DEPRECATE_RECORD_LIFECYCLE_EVENT_METHODS');\n  _exports.DEPRECATE_RECORD_LIFECYCLE_EVENT_METHODS = DEPRECATE_RECORD_LIFECYCLE_EVENT_METHODS;\n  const DEPRECATE_MODEL_DATA = deprecationState('DEPRECATE_MODEL_DATA');\n  _exports.DEPRECATE_MODEL_DATA = DEPRECATE_MODEL_DATA;\n  const DEPRECATE_MODEL_TOJSON = deprecationState('DEPRECATE_MODEL_TOJSON');\n  _exports.DEPRECATE_MODEL_TOJSON = DEPRECATE_MODEL_TOJSON;\n  const DEPRECATE_LEGACY_TEST_HELPER_SUPPORT = deprecationState('DEPRECATE_LEGACY_TEST_HELPER_SUPPORT');\n  _exports.DEPRECATE_LEGACY_TEST_HELPER_SUPPORT = DEPRECATE_LEGACY_TEST_HELPER_SUPPORT;\n  const DEPRECATE_LEGACY_TEST_REGISTRATIONS = deprecationState('DEPRECATE_LEGACY_TEST_REGISTRATIONS');\n  _exports.DEPRECATE_LEGACY_TEST_REGISTRATIONS = DEPRECATE_LEGACY_TEST_REGISTRATIONS;\n  const DEPRECATE_DEFAULT_SERIALIZER = deprecationState('DEPRECATE_DEFAULT_SERIALIZER');\n  _exports.DEPRECATE_DEFAULT_SERIALIZER = DEPRECATE_DEFAULT_SERIALIZER;\n  const DEPRECATE_DEFAULT_ADAPTER = deprecationState('DEPRECATE_DEFAULT_ADAPTER');\n  _exports.DEPRECATE_DEFAULT_ADAPTER = DEPRECATE_DEFAULT_ADAPTER;\n  const DEPRECATE_METHOD_CALLS_ON_DESTROY_STORE = deprecationState('DEPRECATE_METHOD_CALLS_ON_DESTROY_STORE');\n  _exports.DEPRECATE_METHOD_CALLS_ON_DESTROY_STORE = DEPRECATE_METHOD_CALLS_ON_DESTROY_STORE;\n  const DEPRECATE_SERIALIZER_QUERY_RECORD_ARRAY_RESPONSE = deprecationState('DEPRECATE_SERIALIZER_QUERY_RECORD_ARRAY_RESPONSE');\n  _exports.DEPRECATE_SERIALIZER_QUERY_RECORD_ARRAY_RESPONSE = DEPRECATE_SERIALIZER_QUERY_RECORD_ARRAY_RESPONSE;\n  const DEPRECATE_MISMATCHED_INVERSE_RELATIONSHIP_DATA = deprecationState('DEPRECATE_MISMATCHED_INVERSE_RELATIONSHIP_DATA');\n  _exports.DEPRECATE_MISMATCHED_INVERSE_RELATIONSHIP_DATA = DEPRECATE_MISMATCHED_INVERSE_RELATIONSHIP_DATA;\n});","define(\"@ember-data/private-build-infra/index\", [\"exports\", \"require\", \"@ember-data/private-build-infra/available-packages\"], function (_exports, _require, _availablePackages) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.HAS_RECORD_DATA_PACKAGE = _exports.HAS_DEBUG_PACKAGE = _exports.HAS_SERIALIZER_PACKAGE = _exports.HAS_ADAPTER_PACKAGE = _exports.HAS_MODEL_PACKAGE = _exports.HAS_STORE_PACKAGE = _exports.HAS_EMBER_DATA_PACKAGE = void 0;\n\n  function flagState(flag) {\n    const packageName = _availablePackages.default[flag];\n    return (0, _require.has)(packageName) || false;\n  }\n\n  const HAS_EMBER_DATA_PACKAGE = flagState('HAS_EMBER_DATA_PACKAGE');\n  _exports.HAS_EMBER_DATA_PACKAGE = HAS_EMBER_DATA_PACKAGE;\n  const HAS_STORE_PACKAGE = flagState('HAS_STORE_PACKAGE');\n  _exports.HAS_STORE_PACKAGE = HAS_STORE_PACKAGE;\n  const HAS_MODEL_PACKAGE = flagState('HAS_MODEL_PACKAGE');\n  _exports.HAS_MODEL_PACKAGE = HAS_MODEL_PACKAGE;\n  const HAS_ADAPTER_PACKAGE = flagState('HAS_ADAPTER_PACKAGE');\n  _exports.HAS_ADAPTER_PACKAGE = HAS_ADAPTER_PACKAGE;\n  const HAS_SERIALIZER_PACKAGE = flagState('HAS_SERIALIZER_PACKAGE');\n  _exports.HAS_SERIALIZER_PACKAGE = HAS_SERIALIZER_PACKAGE;\n  const HAS_DEBUG_PACKAGE = flagState('HAS_DEBUG_PACKAGE');\n  _exports.HAS_DEBUG_PACKAGE = HAS_DEBUG_PACKAGE;\n  const HAS_RECORD_DATA_PACKAGE = flagState('HAS_RECORD_DATA_PACKAGE');\n  _exports.HAS_RECORD_DATA_PACKAGE = HAS_RECORD_DATA_PACKAGE;\n});","define('@ember-data/record-data/-private', ['exports', '@ember-data/store/-private', '@ember-data/store/-debug', '@ember/ordered-set'], function (exports, Private, Debug, EmberOrderedSet) { 'use strict';\n\n  EmberOrderedSet = EmberOrderedSet && Object.prototype.hasOwnProperty.call(EmberOrderedSet, 'default') ? EmberOrderedSet['default'] : EmberOrderedSet;\n\n  // Used by the store to normalize IDs entering the store.  Despite the fact\n  // that developers may provide IDs as numbers (e.g., `store.findRecord('person', 1)`),\n  // it is important that internally we use strings, since IDs may be serialized\n  // and lose type information.  For example, Ember's router may put a record's\n  // ID into the URL, and if we later try to deserialize that URL and find the\n  // corresponding record, we will not know if it is a string or a number.\n  function coerceId(id) {\n    if (id === null || id === undefined || id === '') {\n      return null;\n    }\n\n    if (typeof id === 'string') {\n      return id;\n    }\n\n    if (typeof id === 'symbol') {\n      return id.toString();\n    }\n\n    return '' + id;\n  }\n\n  /*\n    This method normalizes a link to an \"links object\". If the passed link is\n    already an object it's returned without any modifications.\n\n    See http://jsonapi.org/format/#document-links for more information.\n\n    @method _normalizeLink\n    @internal\n    @param {String} link\n    @return {Object|null}\n  */\n  function _normalizeLink(link) {\n    switch (typeof link) {\n      case 'object':\n        return link;\n\n      case 'string':\n        return {\n          href: link\n        };\n    }\n\n    return null;\n  }\n\n  class EmberDataOrderedSet extends EmberOrderedSet {\n    static create() {\n      return new this();\n    }\n\n    addWithIndex(obj, idx) {\n      var guid = Ember.guidFor(obj);\n      var presenceSet = this.presenceSet;\n      var list = this.list;\n\n      if (presenceSet[guid] === true) {\n        return;\n      }\n\n      presenceSet[guid] = true;\n\n      if (idx === undefined || idx === null) {\n        list.push(obj);\n      } else {\n        list.splice(idx, 0, obj);\n      }\n\n      this.size += 1;\n      return this;\n    }\n\n  }\n\n  function relationshipsFor(instance) {\n    var recordData = Private.recordDataFor(instance) || instance;\n    return recordData._relationships;\n  }\n  function relationshipStateFor(instance, propertyName) {\n    return relationshipsFor(instance).get(propertyName);\n  }\n  function implicitRelationshipsFor(instance) {\n    var recordData = Private.recordDataFor(instance) || instance;\n    return recordData._implicitRelationships;\n  }\n  function implicitRelationshipStateFor(instance, propertyName) {\n    return implicitRelationshipsFor(instance)[propertyName];\n  }\n\n  class Relationship {\n    constructor(store, inverseKey, relationshipMeta, recordData, inverseIsAsync) {\n      this.inverseIsAsync = void 0;\n      this.kind = void 0;\n      this.recordData = void 0;\n      this.members = void 0;\n      this.canonicalMembers = void 0;\n      this.store = void 0;\n      this.key = void 0;\n      this.inverseKey = void 0;\n      this.isAsync = void 0;\n      this.isPolymorphic = void 0;\n      this.relationshipMeta = void 0;\n      this.inverseKeyForImplicit = void 0;\n      this.meta = void 0;\n      this.__inverseMeta = void 0;\n      this._tempModelName = void 0;\n      this.shouldForceReload = false;\n      this.relationshipIsStale = void 0;\n      this.hasDematerializedInverse = void 0;\n      this.hasAnyRelationshipData = void 0;\n      this.relationshipIsEmpty = void 0;\n      this.hasFailedLoadAttempt = false;\n      this.links = void 0;\n      this.willSync = void 0;\n      this.inverseIsAsync = inverseIsAsync;\n      this.kind = relationshipMeta.kind;\n      var async = relationshipMeta.options.async;\n      var polymorphic = relationshipMeta.options.polymorphic;\n      this.recordData = recordData;\n      this.members = new EmberDataOrderedSet();\n      this.canonicalMembers = new EmberDataOrderedSet();\n      this.store = store;\n      this.key = relationshipMeta.key || null;\n      this.inverseKey = inverseKey;\n      this.isAsync = typeof async === 'undefined' ? true : async;\n      this.isPolymorphic = typeof polymorphic === 'undefined' ? false : polymorphic;\n      this.relationshipMeta = relationshipMeta; //This probably breaks for polymorphic relationship in complex scenarios, due to\n      //multiple possible modelNames\n\n      this.inverseKeyForImplicit = this._tempModelName + this.key;\n      this.meta = null;\n      this.__inverseMeta = undefined;\n      /*\n       This flag forces fetch. `true` for a single request once `reload()`\n         has been called `false` at all other times.\n      */\n      // this.shouldForceReload = false;\n\n      /*\n         This flag indicates whether we should\n          re-fetch the relationship the next time\n          it is accessed.\n           The difference between this flag and `shouldForceReload`\n          is in how we treat the presence of partially missing data:\n            - for a forced reload, we will reload the link or EVERY record\n            - for a stale reload, we will reload the link (if present) else only MISSING records\n           Ideally these flags could be merged, but because we don't give the\n          request layer the option of deciding how to resolve the data being queried\n          we are forced to differentiate for now.\n           It is also possible for a relationship to remain stale after a forced reload; however,\n          in this case `hasFailedLoadAttempt` ought to be `true`.\n         false when\n          => recordData.isNew() on initial setup\n          => a previously triggered request has resolved\n          => we get relationship data via push\n         true when\n          => !recordData.isNew() on initial setup\n          => an inverse has been unloaded\n          => we get a new link for the relationship\n         TODO @runspired unskip the acceptance tests and fix these flags\n       */\n\n      this.relationshipIsStale = false;\n      /*\n       This flag indicates whether we should\n        **partially** re-fetch the relationship the\n        next time it is accessed.\n       false when\n        => initial setup\n        => a previously triggered request has resolved\n       true when\n        => an inverse has been unloaded\n      */\n\n      this.hasDematerializedInverse = false;\n      /*\n        This flag indicates whether we should consider the content\n         of this relationship \"known\".\n         If we have no relationship knowledge, and the relationship\n         is `async`, we will attempt to fetch the relationship on\n         access if it is also stale.\n        Snapshot uses this to tell the difference between unknown\n        (`undefined`) or empty (`null`). The reason for this is that\n        we wouldn't want to serialize  unknown relationships as `null`\n        as that might overwrite remote state.\n         All relationships for a newly created (`store.createRecord()`) are\n         considered known (`hasAnyRelationshipData === true`).\n         true when\n          => we receive a push with either new data or explicit empty (`[]` or `null`)\n          => the relationship is a belongsTo and we have received data from\n               the other side.\n         false when\n          => we have received no signal about what data belongs in this relationship\n          => the relationship is a hasMany and we have only received data from\n              the other side.\n       */\n\n      this.hasAnyRelationshipData = false;\n      /*\n        Flag that indicates whether an empty relationship is explicitly empty\n          (signaled by push giving us an empty array or null relationship)\n          e.g. an API response has told us that this relationship is empty.\n         Thus far, it does not appear that we actually need this flag; however,\n          @runspired has found it invaluable when debugging relationship tests\n          to determine whether (and why if so) we are in an incorrect state.\n         true when\n          => we receive a push with explicit empty (`[]` or `null`)\n          => we have received no signal about what data belongs in this relationship\n          => on initial create (as no signal is known yet)\n         false at all other times\n       */\n\n      this.relationshipIsEmpty = true;\n      /*\n        Flag def here for reference, defined as getter in has-many.js / belongs-to.js\n         true when\n          => hasAnyRelationshipData is true\n          AND\n          => members (NOT canonicalMembers) @each !isEmpty\n         TODO, consider changing the conditional here from !isEmpty to !hiddenFromRecordArrays\n      */\n      // TODO do we want this anymore? Seems somewhat useful\n      //   especially if we rename to `hasUpdatedLink`\n      //   which would tell us slightly more about why the\n      //   relationship is stale\n      // this.updatedLink = false;\n    }\n\n    get isNew() {\n      return this.recordData.isNew();\n    }\n\n    _inverseIsAsync() {\n      return !!this.inverseIsAsync;\n    }\n\n    _inverseIsSync() {\n      return !!(this.inverseKey && !this.inverseIsAsync);\n    }\n\n    _hasSupportForImplicitRelationships(recordData) {\n      return recordData._implicitRelationships !== undefined && recordData._implicitRelationships !== null;\n    }\n\n    _hasSupportForRelationships(recordData) {\n      return recordData._relationships !== undefined && recordData._relationships !== null;\n    }\n\n    get _inverseMeta() {\n      if (this.__inverseMeta === undefined) {\n        var inverseMeta = null;\n\n        if (this.inverseKey) {\n          // We know we have a full inverse relationship\n          var type = this.relationshipMeta.type;\n          var inverseModelClass = this.store.modelFor(type);\n          var inverseRelationships = Ember.get(inverseModelClass, 'relationshipsByName');\n          inverseMeta = inverseRelationships.get(this.inverseKey);\n        }\n\n        this.__inverseMeta = inverseMeta;\n      }\n\n      return this.__inverseMeta;\n    }\n\n    recordDataDidDematerialize() {\n      var inverseKey = this.inverseKey;\n\n      if (!inverseKey) {\n        return;\n      } // we actually want a union of members and canonicalMembers\n      // they should be disjoint but currently are not due to a bug\n\n\n      this.forAllMembers(inverseRecordData => {\n        if (!this._hasSupportForRelationships(inverseRecordData)) {\n          return;\n        }\n\n        var relationship = relationshipStateFor(inverseRecordData, inverseKey);\n\n        var belongsToRelationship = inverseRecordData.getBelongsTo(inverseKey)._relationship; // For canonical members, it is possible that inverseRecordData has already been associated to\n        // to another record. For such cases, do not dematerialize the inverseRecordData\n\n\n        if (!belongsToRelationship || !belongsToRelationship.inverseRecordData || this.recordData === belongsToRelationship.inverseRecordData) {\n          relationship.inverseDidDematerialize(this.recordData);\n        }\n      });\n    }\n\n    forAllMembers(callback) {\n      var seen = Object.create(null);\n\n      for (var i = 0; i < this.members.list.length; i++) {\n        var inverseInternalModel = this.members.list[i];\n        var id = Ember.guidFor(inverseInternalModel);\n\n        if (!seen[id]) {\n          seen[id] = true;\n          callback(inverseInternalModel);\n        }\n      }\n\n      for (var _i = 0; _i < this.canonicalMembers.list.length; _i++) {\n        var _inverseInternalModel = this.canonicalMembers.list[_i];\n\n        var _id = Ember.guidFor(_inverseInternalModel);\n\n        if (!seen[_id]) {\n          seen[_id] = true;\n          callback(_inverseInternalModel);\n        }\n      }\n    }\n\n    inverseDidDematerialize(inverseRecordData) {\n      if (!this.isAsync || inverseRecordData && inverseRecordData.isNew()) {\n        // unloading inverse of a sync relationship is treated as a client-side\n        // delete, so actually remove the models don't merely invalidate the cp\n        // cache.\n        // if the record being unloaded only exists on the client, we similarly\n        // treat it as a client side delete\n        this.removeRecordDataFromOwn(inverseRecordData);\n        this.removeCanonicalRecordDataFromOwn(inverseRecordData);\n        this.setRelationshipIsEmpty(true);\n      } else {\n        this.setHasDematerializedInverse(true);\n      }\n    }\n\n    updateMeta(meta) {\n      this.meta = meta;\n    }\n\n    clear() {\n      var members = this.members.list;\n\n      while (members.length > 0) {\n        var member = members[0];\n        this.removeRecordData(member);\n      }\n\n      var canonicalMembers = this.canonicalMembers.list;\n\n      while (canonicalMembers.length > 0) {\n        var _member = canonicalMembers[0];\n        this.removeCanonicalRecordData(_member);\n      }\n    }\n\n    removeAllRecordDatasFromOwn() {\n      this.setRelationshipIsStale(true);\n      this.members.clear();\n    }\n\n    removeAllCanonicalRecordDatasFromOwn() {\n      this.canonicalMembers.clear();\n      this.flushCanonicalLater();\n    }\n\n    removeRecordDatas(recordDatas) {\n      recordDatas.forEach(recordData => this.removeRecordData(recordData));\n    }\n\n    addRecordDatas(recordDatas, idx) {\n      recordDatas.forEach(recordData => {\n        this.addRecordData(recordData, idx);\n\n        if (idx !== undefined) {\n          idx++;\n        }\n      });\n    }\n\n    addCanonicalRecordDatas(recordDatas, idx) {\n      for (var i = 0; i < recordDatas.length; i++) {\n        if (idx !== undefined) {\n          this.addCanonicalRecordData(recordDatas[i], i + idx);\n        } else {\n          this.addCanonicalRecordData(recordDatas[i]);\n        }\n      }\n    }\n\n    addCanonicalRecordData(recordData, idx) {\n      if (!this.canonicalMembers.has(recordData)) {\n        this.canonicalMembers.add(recordData);\n        this.setupInverseRelationship(recordData);\n      }\n\n      this.flushCanonicalLater();\n      this.setHasAnyRelationshipData(true);\n    }\n\n    setupInverseRelationship(recordData) {\n      if (this.inverseKey) {\n        if (!this._hasSupportForRelationships(recordData)) {\n          return;\n        }\n\n        var relationship = relationshipStateFor(recordData, this.inverseKey); // if we have only just initialized the inverse relationship, then it\n        // already has this.recordData in its canonicalMembers, so skip the\n        // unnecessary work.  The exception to this is polymorphic\n        // relationships whose members are determined by their inverse, as those\n        // relationships cannot efficiently find their inverse payloads.\n\n        relationship.addCanonicalRecordData(this.recordData);\n      } else {\n        if (!this._hasSupportForImplicitRelationships(recordData)) {\n          return;\n        }\n\n        var relationships = recordData._implicitRelationships;\n        var _relationship = relationships[this.inverseKeyForImplicit];\n\n        if (!_relationship) {\n          _relationship = relationships[this.inverseKeyForImplicit] = new Relationship(this.store, this.key, {\n            options: {\n              async: this.isAsync\n            }\n          }, recordData);\n        }\n\n        _relationship.addCanonicalRecordData(this.recordData);\n      }\n    }\n\n    removeCanonicalRecordDatas(recordDatas, idx) {\n      for (var i = 0; i < recordDatas.length; i++) {\n        if (idx !== undefined) {\n          this.removeCanonicalRecordData(recordDatas[i], i + idx);\n        } else {\n          this.removeCanonicalRecordData(recordDatas[i]);\n        }\n      }\n    }\n\n    removeCanonicalRecordData(recordData, idx) {\n      if (this.canonicalMembers.has(recordData)) {\n        this.removeCanonicalRecordDataFromOwn(recordData);\n\n        if (this.inverseKey) {\n          this.removeCanonicalRecordDataFromInverse(recordData);\n        } else {\n          if (this._hasSupportForImplicitRelationships(recordData) && recordData._implicitRelationships[this.inverseKeyForImplicit]) {\n            recordData._implicitRelationships[this.inverseKeyForImplicit].removeCanonicalRecordData(this.recordData);\n          }\n        }\n      }\n\n      this.flushCanonicalLater();\n    }\n\n    addRecordData(recordData, idx) {\n      if (!this.members.has(recordData)) {\n        this.members.addWithIndex(recordData, idx);\n        this.notifyRecordRelationshipAdded(recordData, idx);\n\n        if (this._hasSupportForRelationships(recordData) && this.inverseKey) {\n          relationshipStateFor(recordData, this.inverseKey).addRecordData(this.recordData);\n        } else {\n          if (this._hasSupportForImplicitRelationships(recordData)) {\n            if (!recordData._implicitRelationships[this.inverseKeyForImplicit]) {\n              recordData._implicitRelationships[this.inverseKeyForImplicit] = new Relationship(this.store, this.key, {\n                options: {\n                  async: this.isAsync\n                }\n              }, recordData, this.isAsync);\n            }\n\n            recordData._implicitRelationships[this.inverseKeyForImplicit].addRecordData(this.recordData);\n          }\n        }\n      }\n\n      this.setHasAnyRelationshipData(true);\n    }\n\n    removeRecordData(recordData) {\n      if (this.members.has(recordData)) {\n        this.removeRecordDataFromOwn(recordData);\n\n        if (this.inverseKey) {\n          this.removeRecordDataFromInverse(recordData);\n        } else {\n          if (this._hasSupportForImplicitRelationships(recordData) && recordData._implicitRelationships[this.inverseKeyForImplicit]) {\n            recordData._implicitRelationships[this.inverseKeyForImplicit].removeRecordData(this.recordData);\n          }\n        }\n      }\n    }\n\n    removeRecordDataFromInverse(recordData) {\n      if (!this._hasSupportForRelationships(recordData)) {\n        return;\n      }\n\n      if (this.inverseKey) {\n        var inverseRelationship = relationshipStateFor(recordData, this.inverseKey); //Need to check for existence, as the record might unloading at the moment\n\n        if (inverseRelationship) {\n          inverseRelationship.removeRecordDataFromOwn(this.recordData);\n        }\n      }\n    }\n\n    removeRecordDataFromOwn(recordData, idx) {\n      this.members.delete(recordData);\n    }\n\n    removeCanonicalRecordDataFromInverse(recordData) {\n      if (!this._hasSupportForRelationships(recordData)) {\n        return;\n      }\n\n      if (this.inverseKey) {\n        var inverseRelationship = relationshipStateFor(recordData, this.inverseKey); //Need to check for existence, as the record might unloading at the moment\n\n        if (inverseRelationship) {\n          inverseRelationship.removeCanonicalRecordDataFromOwn(this.recordData);\n        }\n      }\n    }\n\n    removeCanonicalRecordDataFromOwn(recordData, idx) {\n      this.canonicalMembers.delete(recordData);\n      this.flushCanonicalLater();\n    }\n    /*\n      Call this method once a record deletion has been persisted\n      to purge it from BOTH current and canonical state of all\n      relationships.\n       @method removeCompletelyFromInverse\n      @private\n     */\n\n\n    removeCompletelyFromInverse() {\n      if (!this.inverseKey && !this.inverseKeyForImplicit) {\n        return;\n      } // we actually want a union of members and canonicalMembers\n      // they should be disjoint but currently are not due to a bug\n\n\n      var seen = Object.create(null);\n      var recordData = this.recordData;\n      var unload;\n\n      if (this.inverseKey) {\n        unload = inverseRecordData => {\n          var id = Ember.guidFor(inverseRecordData);\n\n          if (this._hasSupportForRelationships(inverseRecordData) && seen[id] === undefined) {\n            if (this.inverseKey) {\n              var relationship = relationshipStateFor(inverseRecordData, this.inverseKey);\n              relationship.removeCompletelyFromOwn(recordData);\n            }\n\n            seen[id] = true;\n          }\n        };\n      } else {\n        unload = inverseRecordData => {\n          var id = Ember.guidFor(inverseRecordData);\n\n          if (this._hasSupportForImplicitRelationships(inverseRecordData) && seen[id] === undefined) {\n            var relationship = implicitRelationshipStateFor(inverseRecordData, this.inverseKeyForImplicit);\n            relationship.removeCompletelyFromOwn(recordData);\n            seen[id] = true;\n          }\n        };\n      }\n\n      this.members.forEach(unload);\n      this.canonicalMembers.forEach(unload);\n\n      if (!this.isAsync) {\n        this.clear();\n      }\n    }\n    /*\n      Removes the given RecordData from BOTH canonical AND current state.\n       This method is useful when either a deletion or a rollback on a new record\n      needs to entirely purge itself from an inverse relationship.\n     */\n\n\n    removeCompletelyFromOwn(recordData) {\n      this.canonicalMembers.delete(recordData);\n      this.members.delete(recordData);\n    }\n\n    flushCanonical() {\n      var list = this.members.list;\n      this.willSync = false; //a hack for not removing new RecordDatas\n      //TODO remove once we have proper diffing\n\n      var newRecordDatas = [];\n\n      for (var i = 0; i < list.length; i++) {\n        // TODO Igor deal with this\n        if (list[i].isNew()) {\n          newRecordDatas.push(list[i]);\n        }\n      } //TODO(Igor) make this less abysmally slow\n\n\n      this.members = this.canonicalMembers.copy();\n\n      for (var _i2 = 0; _i2 < newRecordDatas.length; _i2++) {\n        this.members.add(newRecordDatas[_i2]);\n      }\n    }\n\n    flushCanonicalLater() {\n      if (this.willSync) {\n        return;\n      }\n\n      this.willSync = true; // Reaching back into the store to use ED's runloop\n\n      this.store._updateRelationshipState(this);\n    }\n\n    updateLinks(links) {\n      this.links = links;\n    }\n\n    updateRecordDatasFromAdapter(recordDatas) {\n      this.setHasAnyRelationshipData(true); //TODO(Igor) move this to a proper place\n      //TODO Once we have adapter support, we need to handle updated and canonical changes\n\n      this.computeChanges(recordDatas);\n    }\n\n    computeChanges(recordDatas) {}\n\n    notifyRecordRelationshipAdded(recordData, idxs) {}\n\n    setHasAnyRelationshipData(value) {\n      this.hasAnyRelationshipData = value;\n    }\n\n    setHasDematerializedInverse(value) {\n      this.hasDematerializedInverse = value;\n    }\n\n    setRelationshipIsStale(value) {\n      this.relationshipIsStale = value;\n    }\n\n    setRelationshipIsEmpty(value) {\n      this.relationshipIsEmpty = value;\n    }\n\n    setShouldForceReload(value) {\n      this.shouldForceReload = value;\n    }\n\n    setHasFailedLoadAttempt(value) {\n      this.hasFailedLoadAttempt = value;\n    }\n    /*\n     `push` for a relationship allows the store to push a JSON API Relationship\n     Object onto the relationship. The relationship will then extract and set the\n     meta, data and links of that relationship.\n      `push` use `updateMeta`, `updateData` and `updateLink` to update the state\n     of the relationship.\n     */\n\n\n    push(payload, initial) {\n      var hasRelationshipDataProperty = false;\n      var hasLink = false;\n\n      if (payload.meta) {\n        this.updateMeta(payload.meta);\n      }\n\n      if (payload.data !== undefined) {\n        hasRelationshipDataProperty = true;\n        this.updateData(payload.data, initial);\n      } else if (this.isAsync === false && !this.hasAnyRelationshipData) {\n        hasRelationshipDataProperty = true;\n        var data = this.kind === 'hasMany' ? [] : null;\n        this.updateData(data, initial);\n      }\n\n      if (payload.links) {\n        var originalLinks = this.links;\n        this.updateLinks(payload.links);\n\n        if (payload.links.related) {\n          var relatedLink = _normalizeLink(payload.links.related);\n\n          var currentLink = originalLinks && originalLinks.related ? _normalizeLink(originalLinks.related) : null;\n          var currentLinkHref = currentLink ? currentLink.href : null;\n\n          if (relatedLink && relatedLink.href && relatedLink.href !== currentLinkHref) {\n            ( Ember.warn(`You pushed a record of type '${this.recordData.modelName}' with a relationship '${this.key}' configured as 'async: false'. You've included a link but no primary data, this may be an error in your payload. EmberData will treat this relationship as known-to-be-empty.`, this.isAsync || this.hasAnyRelationshipData, {\n              id: 'ds.store.push-link-for-sync-relationship'\n            }));\n            ( !(typeof relatedLink.href === 'string' || relatedLink.href === null) && Ember.assert(`You have pushed a record of type '${this.recordData.modelName}' with '${this.key}' as a link, but the value of that link is not a string.`, typeof relatedLink.href === 'string' || relatedLink.href === null));\n            hasLink = true;\n          }\n        }\n      }\n      /*\n       Data being pushed into the relationship might contain only data or links,\n       or a combination of both.\n        IF contains only data\n       IF contains both links and data\n        relationshipIsEmpty -> true if is empty array (has-many) or is null (belongs-to)\n        hasAnyRelationshipData -> true\n        hasDematerializedInverse -> false\n        relationshipIsStale -> false\n        allInverseRecordsAreLoaded -> run-check-to-determine\n        IF contains only links\n        relationshipIsStale -> true\n       */\n\n\n      this.setHasFailedLoadAttempt(false);\n\n      if (hasRelationshipDataProperty) {\n        var relationshipIsEmpty = payload.data === null || Array.isArray(payload.data) && payload.data.length === 0;\n        this.setHasAnyRelationshipData(true);\n        this.setRelationshipIsStale(false);\n        this.setHasDematerializedInverse(false);\n        this.setRelationshipIsEmpty(relationshipIsEmpty);\n      } else if (hasLink) {\n        this.setRelationshipIsStale(true);\n\n        if (!initial) {\n          var recordData = this.recordData;\n          var storeWrapper = this.recordData.storeWrapper;\n\n          {\n            storeWrapper.notifyPropertyChange(recordData.modelName, recordData.id, recordData.clientId, // We know we are not an implicit relationship here\n            this.key);\n          }\n        }\n      }\n    }\n\n    localStateIsEmpty() {}\n\n    updateData(payload, initial) {}\n\n    destroy() {}\n\n  }\n\n  class BelongsToRelationship extends Relationship {\n    constructor(store, inverseKey, relationshipMeta, recordData, inverseIsAsync) {\n      super(store, inverseKey, relationshipMeta, recordData, inverseIsAsync);\n      this.inverseRecordData = void 0;\n      this.canonicalState = void 0;\n      this.key = void 0;\n      this.key = relationshipMeta.key;\n      this.inverseRecordData = null;\n      this.canonicalState = null;\n      this.key = relationshipMeta.key;\n    }\n\n    setRecordData(recordData) {\n      if (recordData) {\n        this.addRecordData(recordData);\n      } else if (this.inverseRecordData) {\n        this.removeRecordData(this.inverseRecordData);\n      }\n\n      this.setHasAnyRelationshipData(true);\n      this.setRelationshipIsStale(false);\n      this.setRelationshipIsEmpty(false);\n    }\n\n    setCanonicalRecordData(recordData) {\n      if (recordData) {\n        this.addCanonicalRecordData(recordData);\n      } else if (this.canonicalState) {\n        this.removeCanonicalRecordData(this.canonicalState);\n      }\n\n      this.flushCanonicalLater();\n    }\n\n    setInitialCanonicalRecordData(recordData) {\n      if (!recordData) {\n        return;\n      } // When we initialize a belongsTo relationship, we want to avoid work like\n      // notifying our internalModel that we've \"changed\" and excessive thrash on\n      // setting up inverse relationships\n\n\n      this.canonicalMembers.add(recordData);\n      this.members.add(recordData);\n      this.inverseRecordData = this.canonicalState = recordData;\n      this.setupInverseRelationship(recordData);\n    }\n\n    addCanonicalRecordData(recordData) {\n      if (this.canonicalMembers.has(recordData)) {\n        return;\n      }\n\n      if (this.canonicalState) {\n        this.removeCanonicalRecordData(this.canonicalState);\n      }\n\n      this.canonicalState = recordData;\n      super.addCanonicalRecordData(recordData);\n      this.setHasAnyRelationshipData(true);\n      this.setRelationshipIsEmpty(false);\n    }\n\n    inverseDidDematerialize() {\n      super.inverseDidDematerialize(this.inverseRecordData);\n      this.notifyBelongsToChange();\n    }\n\n    removeCompletelyFromOwn(recordData) {\n      super.removeCompletelyFromOwn(recordData);\n\n      if (this.canonicalState === recordData) {\n        this.canonicalState = null;\n      }\n\n      if (this.inverseRecordData === recordData) {\n        this.inverseRecordData = null;\n        this.notifyBelongsToChange();\n      }\n    }\n\n    removeCompletelyFromInverse() {\n      super.removeCompletelyFromInverse();\n      this.inverseRecordData = null;\n    }\n\n    flushCanonical() {\n      //temporary fix to not remove newly created records if server returned null.\n      //TODO remove once we have proper diffing\n      if (this.inverseRecordData && this.inverseRecordData.isNew() && !this.canonicalState) {\n        this.willSync = false;\n        return;\n      }\n\n      if (this.inverseRecordData !== this.canonicalState) {\n        this.inverseRecordData = this.canonicalState;\n        this.notifyBelongsToChange();\n      }\n\n      super.flushCanonical();\n    }\n\n    addRecordData(recordData) {\n      if (this.members.has(recordData)) {\n        return;\n      } // TODO Igor cleanup\n\n\n      Debug.assertPolymorphicType(this.recordData, this.relationshipMeta, recordData, this.store);\n\n      if (this.inverseRecordData) {\n        this.removeRecordData(this.inverseRecordData);\n      }\n\n      this.inverseRecordData = recordData;\n      super.addRecordData(recordData);\n      this.notifyBelongsToChange();\n    }\n\n    removeRecordDataFromOwn(recordData) {\n      if (!this.members.has(recordData)) {\n        return;\n      }\n\n      this.inverseRecordData = null;\n      super.removeRecordDataFromOwn(recordData);\n      this.notifyBelongsToChange();\n    }\n\n    removeAllRecordDatasFromOwn() {\n      super.removeAllRecordDatasFromOwn();\n      this.inverseRecordData = null;\n      this.notifyBelongsToChange();\n    }\n\n    notifyBelongsToChange() {\n      var recordData = this.recordData;\n      var storeWrapper = this.recordData.storeWrapper;\n      storeWrapper.notifyBelongsToChange(recordData.modelName, recordData.id, recordData.clientId, this.key);\n    }\n\n    removeCanonicalRecordDataFromOwn(recordData) {\n      if (!this.canonicalMembers.has(recordData)) {\n        return;\n      }\n\n      this.canonicalState = null;\n      this.setHasAnyRelationshipData(true);\n      this.setRelationshipIsEmpty(true);\n      super.removeCanonicalRecordDataFromOwn(recordData);\n    }\n\n    removeAllCanonicalRecordDatasFromOwn() {\n      super.removeAllCanonicalRecordDatasFromOwn();\n      this.canonicalState = null;\n    }\n\n    getData() {\n      var data;\n      var payload = {};\n\n      if (this.inverseRecordData) {\n        data = this.inverseRecordData.getResourceIdentifier();\n      }\n\n      if (this.inverseRecordData === null && this.hasAnyRelationshipData) {\n        data = null;\n      }\n\n      if (this.links) {\n        payload.links = this.links;\n      }\n\n      if (data !== undefined) {\n        payload.data = data;\n      }\n\n      if (this.meta) {\n        payload.meta = this.meta;\n      }\n\n      payload._relationship = this;\n      return payload;\n    }\n\n    updateData(data, initial) {\n      var recordData;\n\n      if (Ember.isNone(data)) {\n        recordData = null;\n      }\n\n      ( !(data === null || data.id !== undefined && data.type !== undefined) && Ember.assert(`Ember Data expected the data for the ${this.key} relationship on a ${this.recordData.toString()} to be in a JSON API format and include an \\`id\\` and \\`type\\` property but it found ${Ember.inspect(data)}. Please check your serializer and make sure it is serializing the relationship payload into a JSON API format.`, data === null || data.id !== undefined && data.type !== undefined));\n\n      if (recordData !== null) {\n        recordData = this.recordData.storeWrapper.recordDataFor(data.type, data.id);\n      }\n\n      if (initial) {\n        this.setInitialCanonicalRecordData(recordData);\n      } else {\n        this.setCanonicalRecordData(recordData);\n      }\n    }\n\n  }\n\n  /**\n    @module @ember-data/store\n  */\n  class ManyRelationship extends Relationship {\n    constructor(store, inverseKey, relationshipMeta, recordData, inverseIsAsync) {\n      super(store, inverseKey, relationshipMeta, recordData, inverseIsAsync);\n      this.canonicalState = void 0;\n      this.currentState = void 0;\n      this._willUpdateManyArray = void 0;\n      this._pendingManyArrayUpdates = void 0;\n      this.key = void 0;\n      this.canonicalState = [];\n      this.currentState = [];\n      this._willUpdateManyArray = false;\n      this._pendingManyArrayUpdates = null;\n      this.key = relationshipMeta.key;\n    }\n\n    addCanonicalRecordData(recordData, idx) {\n      if (this.canonicalMembers.has(recordData)) {\n        return;\n      }\n\n      if (idx !== undefined) {\n        this.canonicalState.splice(idx, 0, recordData);\n      } else {\n        this.canonicalState.push(recordData);\n      }\n\n      super.addCanonicalRecordData(recordData, idx);\n    }\n\n    inverseDidDematerialize(inverseRecordData) {\n      super.inverseDidDematerialize(inverseRecordData);\n\n      if (this.isAsync) {\n        this.notifyManyArrayIsStale();\n      }\n    }\n\n    addRecordData(recordData, idx) {\n      if (this.members.has(recordData)) {\n        return;\n      } // TODO Type this\n\n\n      Debug.assertPolymorphicType(this.recordData, this.relationshipMeta, recordData, this.store);\n      super.addRecordData(recordData, idx); // make lazy later\n\n      if (idx === undefined) {\n        idx = this.currentState.length;\n      }\n\n      this.currentState.splice(idx, 0, recordData); // TODO Igor consider making direct to remove the indirection\n      // We are not lazily accessing the manyArray here because the change is coming from app side\n      // this.manyArray.flushCanonical(this.currentState);\n\n      this.notifyHasManyChange();\n    }\n\n    removeCanonicalRecordDataFromOwn(recordData, idx) {\n      var i = idx;\n\n      if (!this.canonicalMembers.has(recordData)) {\n        return;\n      }\n\n      if (i === undefined) {\n        i = this.canonicalState.indexOf(recordData);\n      }\n\n      if (i > -1) {\n        this.canonicalState.splice(i, 1);\n      }\n\n      super.removeCanonicalRecordDataFromOwn(recordData, idx); //TODO(Igor) Figure out what to do here\n    }\n\n    removeAllCanonicalRecordDatasFromOwn() {\n      super.removeAllCanonicalRecordDatasFromOwn();\n      this.canonicalMembers.clear();\n      this.canonicalState.splice(0, this.canonicalState.length);\n      super.removeAllCanonicalRecordDatasFromOwn();\n    } //TODO(Igor) DO WE NEED THIS?\n\n\n    removeCompletelyFromOwn(recordData) {\n      super.removeCompletelyFromOwn(recordData); // TODO SkEPTICAL\n\n      var canonicalIndex = this.canonicalState.indexOf(recordData);\n\n      if (canonicalIndex !== -1) {\n        this.canonicalState.splice(canonicalIndex, 1);\n      }\n\n      this.removeRecordDataFromOwn(recordData);\n    }\n\n    flushCanonical() {\n      var toSet = this.canonicalState; //a hack for not removing new records\n      //TODO remove once we have proper diffing\n\n      var newRecordDatas = this.currentState.filter( // only add new internalModels which are not yet in the canonical state of this\n      // relationship (a new internalModel can be in the canonical state if it has\n      // been 'acknowleged' to be in the relationship via a store.push)\n      //TODO Igor deal with this\n      recordData => recordData.isNew() && toSet.indexOf(recordData) === -1);\n      toSet = toSet.concat(newRecordDatas);\n      /*\n      if (this._manyArray) {\n        this._manyArray.flushCanonical(toSet);\n      }\n      */\n\n      this.currentState = toSet;\n      super.flushCanonical(); // Once we clean up all the flushing, we will be left with at least the notifying part\n\n      this.notifyHasManyChange();\n    } //TODO(Igor) idx not used currently, fix\n\n\n    removeRecordDataFromOwn(recordData, idx) {\n      super.removeRecordDataFromOwn(recordData, idx);\n      var index = idx || this.currentState.indexOf(recordData); //TODO IGOR DAVID INVESTIGATE\n\n      if (index === -1) {\n        return;\n      }\n\n      this.currentState.splice(index, 1); // TODO Igor consider making direct to remove the indirection\n      // We are not lazily accessing the manyArray here because the change is coming from app side\n\n      this.notifyHasManyChange(); // this.manyArray.flushCanonical(this.currentState);\n    }\n\n    notifyRecordRelationshipAdded() {\n      this.notifyHasManyChange();\n    }\n\n    computeChanges(recordDatas = []) {\n      var members = this.canonicalMembers;\n      var recordDatasToRemove = [];\n      var recordDatasSet = setForArray(recordDatas);\n      members.forEach(member => {\n        if (recordDatasSet.has(member)) {\n          return;\n        }\n\n        recordDatasToRemove.push(member);\n      });\n      this.removeCanonicalRecordDatas(recordDatasToRemove);\n\n      for (var i = 0, l = recordDatas.length; i < l; i++) {\n        var recordData = recordDatas[i];\n        this.removeCanonicalRecordData(recordData);\n        this.addCanonicalRecordData(recordData, i);\n      }\n    }\n\n    setInitialRecordDatas(recordDatas) {\n      if (Array.isArray(recordDatas) === false || !recordDatas || recordDatas.length === 0) {\n        return;\n      }\n\n      for (var i = 0; i < recordDatas.length; i++) {\n        var recordData = recordDatas[i];\n\n        if (this.canonicalMembers.has(recordData)) {\n          continue;\n        }\n\n        this.canonicalMembers.add(recordData);\n        this.members.add(recordData);\n        this.setupInverseRelationship(recordData);\n      }\n\n      this.canonicalState = this.canonicalMembers.toArray();\n    }\n    /*\n      This is essentially a \"sync\" version of\n        notifyHasManyChange. We should work to unify\n        these worlds\n         - @runspired\n    */\n\n\n    notifyManyArrayIsStale() {\n      var recordData = this.recordData;\n      var storeWrapper = recordData.storeWrapper;\n\n      {\n        storeWrapper.notifyPropertyChange(recordData.modelName, recordData.id, recordData.clientId, this.key);\n      }\n    }\n\n    notifyHasManyChange() {\n      var recordData = this.recordData;\n      var storeWrapper = recordData.storeWrapper;\n      storeWrapper.notifyHasManyChange(recordData.modelName, recordData.id, recordData.clientId, this.key);\n    }\n\n    getData() {\n      var payload = {};\n\n      if (this.hasAnyRelationshipData) {\n        payload.data = this.currentState.map(recordData => recordData.getResourceIdentifier());\n      }\n\n      if (this.links) {\n        payload.links = this.links;\n      }\n\n      if (this.meta) {\n        payload.meta = this.meta;\n      } // TODO @runspired: the @igor refactor is too limiting for relationship state\n      //   we should reconsider where we fetch from.\n\n\n      payload._relationship = this;\n      return payload;\n    }\n\n    updateData(data, initial) {\n      var recordDatas;\n\n      if (Ember.isNone(data)) {\n        recordDatas = undefined;\n      } else {\n        recordDatas = new Array(data.length);\n\n        for (var i = 0; i < data.length; i++) {\n          recordDatas[i] = this.recordData.storeWrapper.recordDataFor(data[i].type, data[i].id);\n        }\n      }\n\n      if (initial) {\n        this.setInitialRecordDatas(recordDatas);\n      } else {\n        this.updateRecordDatasFromAdapter(recordDatas);\n      }\n    }\n\n  }\n\n  function setForArray(array) {\n    var set = new EmberDataOrderedSet();\n\n    if (array) {\n      for (var i = 0, l = array.length; i < l; i++) {\n        set.add(array[i]);\n      }\n    }\n\n    return set;\n  }\n\n  function createRelationshipFor(relationshipMeta, store, recordData, key) {\n    var inverseKey = recordData.storeWrapper.inverseForRelationship(recordData.modelName, key);\n    var inverseIsAsync = recordData.storeWrapper.inverseIsAsyncForRelationship(recordData.modelName, key);\n\n    if (relationshipMeta.kind === 'hasMany') {\n      return new ManyRelationship(store, inverseKey, relationshipMeta, recordData, inverseIsAsync);\n    } else {\n      return new BelongsToRelationship(store, inverseKey, relationshipMeta, recordData, inverseIsAsync);\n    }\n  }\n\n  class Relationships {\n    constructor(recordData) {\n      this.recordData = recordData;\n      this._store = void 0;\n      this._storeWrapper = void 0;\n      this.initializedRelationships = void 0;\n      this.initializedRelationships = Object.create(null);\n      this._storeWrapper = Private.upgradeForInternal(recordData.storeWrapper);\n      this._store = this._storeWrapper._store;\n    }\n\n    has(key) {\n      return !!this.initializedRelationships[key];\n    }\n\n    forEach(cb) {\n      var rels = this.initializedRelationships;\n      Object.keys(rels).forEach(name => {\n        cb(name, rels[name]);\n      });\n    }\n\n    get(key) {\n      var relationships = this.initializedRelationships;\n      var relationship = relationships[key];\n\n      if (!relationship) {\n        var _recordData = this.recordData;\n        var rel = this.recordData.storeWrapper.relationshipsDefinitionFor(this.recordData.modelName)[key];\n\n        if (rel) {\n          relationship = relationships[key] = createRelationshipFor(rel, this._store, _recordData, key);\n        }\n      }\n\n      return relationship;\n    }\n\n  }\n\n  /**\n    @module @ember-data/record-data\n  */\n  var nextBfsId = 1;\n  class RecordDataDefault {\n    constructor(identifier, storeWrapper) {\n      this.identifier = identifier;\n      this.storeWrapper = storeWrapper;\n      this._errors = void 0;\n      this.__relationships = void 0;\n      this.__implicitRelationships = void 0;\n      this.modelName = void 0;\n      this.clientId = void 0;\n      this.id = void 0;\n      this.isDestroyed = void 0;\n      this._isNew = void 0;\n      this._bfsId = void 0;\n      this.__attributes = void 0;\n      this.__inFlightAttributes = void 0;\n      this.__data = void 0;\n      this._scheduledDestroy = void 0;\n      this._isDeleted = void 0;\n      this._isDeletionCommited = void 0;\n      this.modelName = identifier.type;\n      this.clientId = identifier.lid;\n      this.id = identifier.id;\n      this.__relationships = null;\n      this.__implicitRelationships = null;\n      this.isDestroyed = false;\n      this._isNew = false;\n      this._isDeleted = false; // Used during the mark phase of unloading to avoid checking the same internal\n      // model twice in the same scan\n\n      this._bfsId = 0;\n      this.reset();\n    } // PUBLIC API\n\n\n    getResourceIdentifier() {\n      return this.identifier;\n    }\n\n    pushData(data, calculateChange) {\n      var changedKeys;\n\n      if (this._isNew) {\n        this._isNew = false;\n        this.notifyStateChange();\n      }\n\n      if (calculateChange) {\n        changedKeys = this._changedKeys(data.attributes);\n      }\n\n      Ember.assign(this._data, data.attributes);\n\n      if (this.__attributes) {\n        // only do if we have attribute changes\n        this._updateChangedAttributes();\n      }\n\n      if (data.relationships) {\n        this._setupRelationships(data);\n      }\n\n      if (data.id) {\n        this.id = coerceId(data.id);\n      }\n\n      return changedKeys;\n    }\n\n    willCommit() {\n      this._inFlightAttributes = this._attributes;\n      this._attributes = null;\n    }\n\n    hasChangedAttributes() {\n      return this.__attributes !== null && Object.keys(this.__attributes).length > 0;\n    }\n\n    _clearErrors() {\n    }\n\n    getErrors() {\n      ( Ember.assert('Can not call getErrors unless the RECORD_DATA_ERRORS feature flag is on', !!false));\n\n      {\n        return [];\n      }\n    } // this is a hack bc we don't have access to the state machine\n    //   and relationships need this info and @runspired didn't see\n    //   how to get it just yet from storeWrapper.\n\n\n    isEmpty() {\n      return this.__attributes === null && this.__inFlightAttributes === null && this.__data === null;\n    }\n\n    deleteRecord() {\n      this._isDeleted = true;\n      this.notifyStateChange();\n    }\n\n    isDeleted() {\n      return this._isDeleted;\n    }\n\n    setIsDeleted(isDeleted) {\n      this._isDeleted = isDeleted;\n\n      if (this._isNew) {\n        this._deletionConfirmed();\n      }\n\n      this.notifyStateChange();\n    }\n\n    isDeletionCommitted() {\n      return this._isDeletionCommited;\n    }\n\n    reset() {\n      this.__attributes = null;\n      this.__inFlightAttributes = null;\n      this.__data = null;\n      this._errors = undefined;\n    }\n\n    _setupRelationships(data) {\n      var relationships = this.storeWrapper.relationshipsDefinitionFor(this.modelName);\n      var keys = Object.keys(relationships);\n\n      for (var i = 0; i < keys.length; i++) {\n        var relationshipName = keys[i];\n\n        if (!data.relationships[relationshipName]) {\n          continue;\n        } // in debug, assert payload validity eagerly\n\n\n        var relationshipData = data.relationships[relationshipName];\n\n        {\n          var _storeWrapper = this.storeWrapper;\n          var recordData = this;\n          var relationshipMeta = relationships[relationshipName];\n\n          if (!relationshipData || !relationshipMeta) {\n            continue;\n          }\n\n          if (relationshipData.links) {\n            var isAsync = relationshipMeta.options && relationshipMeta.options.async !== false;\n\n            var _relationship = this._relationships.get(relationshipName);\n\n            ( Ember.warn(`You pushed a record of type '${this.modelName}' with a relationship '${relationshipName}' configured as 'async: false'. You've included a link but no primary data, this may be an error in your payload. EmberData will treat this relationship as known-to-be-empty.`, isAsync || relationshipData.data || _relationship.hasAnyRelationshipData, {\n              id: 'ds.store.push-link-for-sync-relationship'\n            }));\n          } else if (relationshipData.data) {\n            if (relationshipMeta.kind === 'belongsTo') {\n              ( !(!Array.isArray(relationshipData.data)) && Ember.assert(`A ${this.modelName} record was pushed into the store with the value of ${relationshipName} being ${Ember.inspect(relationshipData.data)}, but ${relationshipName} is a belongsTo relationship so the value must not be an array. You should probably check your data payload or serializer.`, !Array.isArray(relationshipData.data)));\n              assertRelationshipData(_storeWrapper, recordData, relationshipData.data, relationshipMeta);\n            } else if (relationshipMeta.kind === 'hasMany') {\n              ( !(Array.isArray(relationshipData.data)) && Ember.assert(`A ${this.modelName} record was pushed into the store with the value of ${relationshipName} being '${Ember.inspect(relationshipData.data)}', but ${relationshipName} is a hasMany relationship so the value must be an array. You should probably check your data payload or serializer.`, Array.isArray(relationshipData.data)));\n\n              if (Array.isArray(relationshipData.data)) {\n                for (var _i = 0; _i < relationshipData.data.length; _i++) {\n                  assertRelationshipData(_storeWrapper, recordData, relationshipData.data[_i], relationshipMeta);\n                }\n              }\n            }\n          }\n        }\n\n        var relationship = this._relationships.get(relationshipName);\n\n        relationship.push(relationshipData);\n      }\n    }\n    /*\n      Checks if the attributes which are considered as changed are still\n      different to the state which is acknowledged by the server.\n       This method is needed when data for the internal model is pushed and the\n      pushed data might acknowledge dirty attributes as confirmed.\n       @method updateChangedAttributes\n      @private\n     */\n\n\n    _updateChangedAttributes() {\n      var changedAttributes = this.changedAttributes();\n      var changedAttributeNames = Object.keys(changedAttributes);\n      var attrs = this._attributes;\n\n      for (var i = 0, length = changedAttributeNames.length; i < length; i++) {\n        var attribute = changedAttributeNames[i];\n        var data = changedAttributes[attribute];\n        var oldData = data[0];\n        var newData = data[1];\n\n        if (oldData === newData) {\n          delete attrs[attribute];\n        }\n      }\n    }\n    /*\n      Returns an object, whose keys are changed properties, and value is an\n      [oldProp, newProp] array.\n       @method changedAttributes\n      @private\n    */\n\n\n    changedAttributes() {\n      var oldData = this._data;\n      var currentData = this._attributes;\n      var inFlightData = this._inFlightAttributes;\n      var newData = Ember.assign({}, inFlightData, currentData);\n      var diffData = Object.create(null);\n      var newDataKeys = Object.keys(newData);\n\n      for (var i = 0, length = newDataKeys.length; i < length; i++) {\n        var _key = newDataKeys[i];\n        diffData[_key] = [oldData[_key], newData[_key]];\n      }\n\n      return diffData;\n    }\n\n    isNew() {\n      return this._isNew;\n    }\n\n    rollbackAttributes() {\n      var dirtyKeys;\n      this._isDeleted = false;\n\n      if (this.hasChangedAttributes()) {\n        dirtyKeys = Object.keys(this._attributes);\n        this._attributes = null;\n      }\n\n      if (this.isNew()) {\n        this.removeFromInverseRelationships(true);\n        this._isDeleted = true;\n        this._isNew = false;\n      }\n\n      this._inFlightAttributes = null;\n\n      this._clearErrors();\n\n      this.notifyStateChange();\n      return dirtyKeys;\n    }\n\n    _deletionConfirmed() {\n      this.removeFromInverseRelationships();\n    }\n\n    didCommit(data) {\n      if (this._isDeleted) {\n        this._deletionConfirmed();\n\n        this._isDeletionCommited = true;\n      }\n\n      this._isNew = false;\n      var newCanonicalAttributes = null;\n\n      if (data) {\n        // this.store._internalModelDidReceiveRelationshipData(this.modelName, this.id, data.relationships);\n        if (data.relationships) {\n          this._setupRelationships(data);\n        }\n\n        if (data.id) {\n          // didCommit provided an ID, notify the store of it\n          this.storeWrapper.setRecordId(this.modelName, data.id, this.clientId);\n          this.id = coerceId(data.id);\n        }\n\n        newCanonicalAttributes = data.attributes || null;\n      }\n\n      var changedKeys = this._changedKeys(newCanonicalAttributes);\n\n      Ember.assign(this._data, this.__inFlightAttributes, newCanonicalAttributes);\n      this._inFlightAttributes = null;\n\n      this._updateChangedAttributes();\n\n      this._clearErrors();\n\n      this.notifyStateChange();\n      return changedKeys;\n    }\n\n    notifyStateChange() {\n    } // get ResourceIdentifiers for \"current state\"\n\n\n    getHasMany(key) {\n      return this._relationships.get(key).getData();\n    } // set a new \"current state\" via ResourceIdentifiers\n\n\n    setDirtyHasMany(key, recordDatas) {\n      var relationship = this._relationships.get(key);\n\n      relationship.clear();\n      relationship.addRecordDatas(recordDatas);\n    } // append to \"current state\" via RecordDatas\n\n\n    addToHasMany(key, recordDatas, idx) {\n      this._relationships.get(key).addRecordDatas(recordDatas, idx);\n    } // remove from \"current state\" via RecordDatas\n\n\n    removeFromHasMany(key, recordDatas) {\n      this._relationships.get(key).removeRecordDatas(recordDatas);\n    }\n\n    commitWasRejected(identifier, errors) {\n      var keys = Object.keys(this._inFlightAttributes);\n\n      if (keys.length > 0) {\n        var attrs = this._attributes;\n\n        for (var i = 0; i < keys.length; i++) {\n          if (attrs[keys[i]] === undefined) {\n            attrs[keys[i]] = this._inFlightAttributes[keys[i]];\n          }\n        }\n      }\n\n      this._inFlightAttributes = null;\n    }\n\n    getBelongsTo(key) {\n      return this._relationships.get(key).getData();\n    }\n\n    setDirtyBelongsTo(key, recordData) {\n      this._relationships.get(key).setRecordData(recordData);\n    }\n\n    setDirtyAttribute(key, value) {\n      var originalValue; // Add the new value to the changed attributes hash\n\n      this._attributes[key] = value;\n\n      if (key in this._inFlightAttributes) {\n        originalValue = this._inFlightAttributes[key];\n      } else {\n        originalValue = this._data[key];\n      } // If we went back to our original value, we shouldn't keep the attribute around anymore\n\n\n      if (value === originalValue) {\n        delete this._attributes[key];\n      }\n    } // internal set coming from the model\n\n\n    __setId(id) {\n      if (this.id !== id) {\n        this.id = id;\n      }\n    }\n\n    getAttr(key) {\n      if (key in this._attributes) {\n        return this._attributes[key];\n      } else if (key in this._inFlightAttributes) {\n        return this._inFlightAttributes[key];\n      } else {\n        return this._data[key];\n      }\n    }\n\n    hasAttr(key) {\n      return key in this._attributes || key in this._inFlightAttributes || key in this._data;\n    }\n\n    unloadRecord() {\n      if (this.isDestroyed) {\n        return;\n      }\n\n      this._destroyRelationships();\n\n      this.reset();\n\n      if (!this._scheduledDestroy) {\n        this._scheduledDestroy = Ember.run.backburner.schedule('destroy', this, '_cleanupOrphanedRecordDatas');\n      }\n    }\n\n    _cleanupOrphanedRecordDatas() {\n      var relatedRecordDatas = this._allRelatedRecordDatas();\n\n      if (areAllModelsUnloaded(relatedRecordDatas)) {\n        for (var i = 0; i < relatedRecordDatas.length; ++i) {\n          var recordData = relatedRecordDatas[i];\n\n          if (!recordData.isDestroyed) {\n            recordData.destroy();\n          }\n        }\n      }\n\n      this._scheduledDestroy = null;\n    }\n\n    destroy() {\n      this._relationships.forEach((name, rel) => rel.destroy());\n\n      this.isDestroyed = true;\n      this.storeWrapper.disconnectRecord(this.modelName, this.id, this.clientId);\n    }\n\n    isRecordInUse() {\n      return this.storeWrapper.isRecordInUse(this.modelName, this.id, this.clientId);\n    }\n    /**\n      Computes the set of internal models reachable from `this` across exactly one\n      relationship.\n       @return {Array} An array containing the internal models that `this` belongs\n      to or has many.\n     */\n\n\n    _directlyRelatedRecordDatas() {\n      var array = [];\n\n      this._relationships.forEach((name, rel) => {\n        var members = rel.members.list;\n        var canonicalMembers = rel.canonicalMembers.list;\n        array = array.concat(members, canonicalMembers);\n      });\n\n      return array;\n    }\n    /**\n      Computes the set of internal models reachable from this internal model.\n       Reachability is determined over the relationship graph (ie a graph where\n      nodes are internal models and edges are belongs to or has many\n      relationships).\n       @return {Array} An array including `this` and all internal models reachable\n      from `this`.\n    */\n\n\n    _allRelatedRecordDatas() {\n      var array = [];\n      var queue = [];\n      var bfsId = nextBfsId++;\n      queue.push(this);\n      this._bfsId = bfsId;\n\n      while (queue.length > 0) {\n        var node = queue.shift();\n        array.push(node);\n\n        var related = node._directlyRelatedRecordDatas();\n\n        for (var i = 0; i < related.length; ++i) {\n          var recordData = related[i];\n\n          if (recordData instanceof RecordDataDefault) {\n            ( !(recordData._bfsId <= bfsId) && Ember.assert('Internal Error: seen a future bfs iteration', recordData._bfsId <= bfsId));\n\n            if (recordData._bfsId < bfsId) {\n              queue.push(recordData);\n              recordData._bfsId = bfsId;\n            }\n          }\n        }\n      }\n\n      return array;\n    }\n\n    isAttrDirty(key) {\n      if (this._attributes[key] === undefined) {\n        return false;\n      }\n\n      var originalValue;\n\n      if (this._inFlightAttributes[key] !== undefined) {\n        originalValue = this._inFlightAttributes[key];\n      } else {\n        originalValue = this._data[key];\n      }\n\n      return originalValue !== this._attributes[key];\n    }\n\n    get _attributes() {\n      if (this.__attributes === null) {\n        this.__attributes = Object.create(null);\n      }\n\n      return this.__attributes;\n    }\n\n    set _attributes(v) {\n      this.__attributes = v;\n    }\n\n    get _relationships() {\n      if (this.__relationships === null) {\n        this.__relationships = new Relationships(this);\n      }\n\n      return this.__relationships;\n    }\n\n    get _data() {\n      if (this.__data === null) {\n        this.__data = Object.create(null);\n      }\n\n      return this.__data;\n    }\n\n    set _data(v) {\n      this.__data = v;\n    }\n    /*\n     implicit relationships are relationship which have not been declared but the inverse side exists on\n     another record somewhere\n     For example if there was\n      ```app/models/comment.js\n     import Model, { attr } from '@ember-data/model';\n      export default Model.extend({\n       name: attr()\n     });\n     ```\n      but there is also\n      ```app/models/post.js\n     import Model, { attr, hasMany } from '@ember-data/model';\n      export default Model.extend({\n       name: attr(),\n       comments: hasMany('comment')\n     });\n     ```\n      would have a implicit post relationship in order to be do things like remove ourselves from the post\n     when we are deleted\n    */\n\n\n    get _implicitRelationships() {\n      if (this.__implicitRelationships === null) {\n        var relationships = Object.create(null);\n        this.__implicitRelationships = relationships;\n        return relationships;\n      }\n\n      return this.__implicitRelationships;\n    }\n\n    get _inFlightAttributes() {\n      if (this.__inFlightAttributes === null) {\n        this.__inFlightAttributes = Object.create(null);\n      }\n\n      return this.__inFlightAttributes;\n    }\n\n    set _inFlightAttributes(v) {\n      this.__inFlightAttributes = v;\n    }\n    /**\n     * Receives options passed to `store.createRecord` and is given the opportunity\n     * to handle them.\n     *\n     * The return value is an object of options to pass to `Record.create()`\n     *\n     * @param options\n     * @private\n     */\n\n\n    _initRecordCreateOptions(options) {\n      var createOptions = {};\n\n      if (options !== undefined) {\n        var {\n          modelName,\n          storeWrapper: _storeWrapper2\n        } = this;\n\n        var attributeDefs = _storeWrapper2.attributesDefinitionFor(modelName);\n\n        var relationshipDefs = _storeWrapper2.relationshipsDefinitionFor(modelName);\n\n        var relationships = this._relationships;\n        var propertyNames = Object.keys(options);\n\n        for (var i = 0; i < propertyNames.length; i++) {\n          var name = propertyNames[i];\n          var propertyValue = options[name];\n\n          if (name === 'id') {\n            this.id = propertyValue;\n            continue;\n          }\n\n          var fieldType = relationshipDefs[name] || attributeDefs[name];\n          var kind = fieldType !== undefined ? fieldType.kind : null;\n          var relationship = void 0;\n\n          switch (kind) {\n            case 'attribute':\n              this.setDirtyAttribute(name, propertyValue);\n              break;\n\n            case 'belongsTo':\n              this.setDirtyBelongsTo(name, propertyValue);\n              relationship = relationships.get(name);\n              relationship.setHasAnyRelationshipData(true);\n              relationship.setRelationshipIsEmpty(false);\n              break;\n\n            case 'hasMany':\n              this.setDirtyHasMany(name, propertyValue);\n              relationship = relationships.get(name);\n              relationship.setHasAnyRelationshipData(true);\n              relationship.setRelationshipIsEmpty(false);\n              break;\n\n            default:\n              // reflect back (pass-thru) unknown properties\n              createOptions[name] = propertyValue;\n          }\n        }\n      }\n\n      return createOptions;\n    }\n    /*\n        TODO IGOR AND DAVID this shouldn't be public\n     This method should only be called by records in the `isNew()` state OR once the record\n     has been deleted and that deletion has been persisted.\n      It will remove this record from any associated relationships.\n      If `isNew` is true (default false), it will also completely reset all\n      relationships to an empty state as well.\n       @method removeFromInverseRelationships\n      @param {Boolean} isNew whether to unload from the `isNew` perspective\n      @private\n     */\n\n\n    removeFromInverseRelationships(isNew = false) {\n      this._relationships.forEach((name, rel) => {\n        rel.removeCompletelyFromInverse();\n\n        if (isNew === true) {\n          rel.clear();\n        }\n      });\n\n      this.__relationships = null;\n      var implicitRelationships = this._implicitRelationships;\n      this.__implicitRelationships = null;\n      Object.keys(implicitRelationships).forEach(key => {\n        var rel = implicitRelationships[key];\n        rel.removeCompletelyFromInverse();\n\n        if (isNew === true) {\n          rel.clear();\n        }\n      });\n    }\n\n    _destroyRelationships() {\n      var relationships = this._relationships;\n      relationships.forEach((name, rel) => destroyRelationship(rel));\n      var implicitRelationships = this._implicitRelationships;\n      this.__implicitRelationships = null;\n      Object.keys(implicitRelationships).forEach(key => {\n        var rel = implicitRelationships[key];\n        destroyRelationship(rel);\n      });\n    }\n\n    clientDidCreate() {\n      this._isNew = true;\n    }\n    /*\n      Ember Data has 3 buckets for storing the value of an attribute on an internalModel.\n       `_data` holds all of the attributes that have been acknowledged by\n      a backend via the adapter. When rollbackAttributes is called on a model all\n      attributes will revert to the record's state in `_data`.\n       `_attributes` holds any change the user has made to an attribute\n      that has not been acknowledged by the adapter. Any values in\n      `_attributes` are have priority over values in `_data`.\n       `_inFlightAttributes`. When a record is being synced with the\n      backend the values in `_attributes` are copied to\n      `_inFlightAttributes`. This way if the backend acknowledges the\n      save but does not return the new state Ember Data can copy the\n      values from `_inFlightAttributes` to `_data`. Without having to\n      worry about changes made to `_attributes` while the save was\n      happenign.\n        Changed keys builds a list of all of the values that may have been\n      changed by the backend after a successful save.\n       It does this by iterating over each key, value pair in the payload\n      returned from the server after a save. If the `key` is found in\n      `_attributes` then the user has a local changed to the attribute\n      that has not been synced with the server and the key is not\n      included in the list of changed keys.\n    \n      If the value, for a key differs from the value in what Ember Data\n      believes to be the truth about the backend state (A merger of the\n      `_data` and `_inFlightAttributes` objects where\n      `_inFlightAttributes` has priority) then that means the backend\n      has updated the value and the key is added to the list of changed\n      keys.\n       @method _changedKeys\n      @private\n    */\n\n    /*\n        TODO IGOR DAVID\n        There seems to be a potential bug here, where we will return keys that are not\n        in the schema\n    */\n\n\n    _changedKeys(updates) {\n      var changedKeys = [];\n\n      if (updates) {\n        var original, i, value, _key2;\n\n        var keys = Object.keys(updates);\n        var length = keys.length;\n        var hasAttrs = this.hasChangedAttributes();\n        var attrs;\n\n        if (hasAttrs) {\n          attrs = this._attributes;\n        }\n\n        original = Ember.assign(Object.create(null), this._data, this.__inFlightAttributes);\n\n        for (i = 0; i < length; i++) {\n          _key2 = keys[i];\n          value = updates[_key2]; // A value in _attributes means the user has a local change to\n          // this attributes. We never override this value when merging\n          // updates from the backend so we should not sent a change\n          // notification if the server value differs from the original.\n\n          if (hasAttrs === true && attrs[_key2] !== undefined) {\n            continue;\n          }\n\n          if (!Ember.isEqual(original[_key2], value)) {\n            changedKeys.push(_key2);\n          }\n        }\n      }\n\n      return changedKeys;\n    }\n\n    toString() {\n      return `<${this.modelName}:${this.id}>`;\n    }\n\n  }\n\n  function assertRelationshipData(store, recordData, data, meta) {\n    ( !(!Array.isArray(data)) && Ember.assert(`A ${recordData.modelName} record was pushed into the store with the value of ${meta.key} being '${JSON.stringify(data)}', but ${meta.key} is a belongsTo relationship so the value must not be an array. You should probably check your data payload or serializer.`, !Array.isArray(data)));\n    ( !(data === null || typeof data.type === 'string' && data.type.length) && Ember.assert(`Encountered a relationship identifier without a type for the ${meta.kind} relationship '${meta.key}' on ${recordData}, expected a json-api identifier with type '${meta.type}' but found '${JSON.stringify(data)}'. Please check your serializer and make sure it is serializing the relationship payload into a JSON API format.`, data === null || typeof data.type === 'string' && data.type.length));\n    ( !(data === null || !!coerceId(data.id)) && Ember.assert(`Encountered a relationship identifier without an id for the ${meta.kind} relationship '${meta.key}' on ${recordData}, expected a json-api identifier but found '${JSON.stringify(data)}'. Please check your serializer and make sure it is serializing the relationship payload into a JSON API format.`, data === null || !!coerceId(data.id)));\n    ( !(data === null || !data.type || store._hasModelFor(data.type)) && Ember.assert(`Encountered a relationship identifier with type '${data.type}' for the ${meta.kind} relationship '${meta.key}' on ${recordData}, Expected a json-api identifier with type '${meta.type}'. No model was found for '${data.type}'.`, data === null || !data.type || store._hasModelFor(data.type)));\n  } // Handle dematerialization for relationship `rel`.  In all cases, notify the\n  // relationship of the dematerialization: this is done so the relationship can\n  // notify its inverse which needs to update state\n  //\n  // If the inverse is sync, unloading this record is treated as a client-side\n  // delete, so we remove the inverse records from this relationship to\n  // disconnect the graph.  Because it's not async, we don't need to keep around\n  // the internalModel as an id-wrapper for references and because the graph is\n  // disconnected we can actually destroy the internalModel when checking for\n  // orphaned models.\n\n\n  function destroyRelationship(rel) {\n    rel.recordDataDidDematerialize();\n\n    if (rel._inverseIsSync()) {\n      rel.removeAllRecordDatasFromOwn();\n      rel.removeAllCanonicalRecordDatasFromOwn();\n    }\n  }\n\n  function areAllModelsUnloaded(recordDatas) {\n    for (var i = 0; i < recordDatas.length; ++i) {\n      if (recordDatas[i].isRecordInUse()) {\n        return false;\n      }\n    }\n\n    return true;\n  }\n\n  exports.BelongsToRelationship = BelongsToRelationship;\n  exports.ManyRelationship = ManyRelationship;\n  exports.RecordData = RecordDataDefault;\n  exports.Relationship = Relationship;\n  exports.relationshipStateFor = relationshipStateFor;\n  exports.relationshipsFor = relationshipsFor;\n\n  Object.defineProperty(exports, '__esModule', { value: true });\n\n});\n","define('@ember-data/serializer/-private', ['exports'], function (exports) { 'use strict';\n\n  /**\n    @module @ember-data/serializer\n  */\n\n  /**\n    ## Using Embedded Records\n\n    `EmbeddedRecordsMixin` supports serializing embedded records.\n\n    To set up embedded records, include the mixin when extending a serializer,\n    then define and configure embedded (model) relationships.\n\n    Note that embedded records will serialize with the serializer for their model instead of the serializer in which they are defined.\n\n    Note also that this mixin does not work with JSONAPISerializer because the JSON:API specification does not describe how to format embedded resources.\n\n    Below is an example of a per-type serializer (`post` type).\n\n    ```app/serializers/post.js\n    import RESTSerializer, { EmbeddedRecordsMixin } from '@ember-data/serializer/rest';\n\n    export default RESTSerializer.extend(EmbeddedRecordsMixin, {\n      attrs: {\n        author: { embedded: 'always' },\n        comments: { serialize: 'ids' }\n      }\n    });\n    ```\n    Note that this use of `{ embedded: 'always' }` is unrelated to\n    the `{ embedded: 'always' }` that is defined as an option on `attr` as part of\n    defining a model while working with the `ActiveModelSerializer`.  Nevertheless,\n    using `{ embedded: 'always' }` as an option to `attr` is not a valid way to set up\n    embedded records.\n\n    The `attrs` option for a resource `{ embedded: 'always' }` is shorthand for:\n\n    ```js\n    {\n      serialize: 'records',\n      deserialize: 'records'\n    }\n    ```\n\n    ### Configuring Attrs\n\n    A resource's `attrs` option may be set to use `ids`, `records` or false for the\n    `serialize`  and `deserialize` settings.\n\n    The `attrs` property can be set on the `ApplicationSerializer` or a per-type\n    serializer.\n\n    In the case where embedded JSON is expected while extracting a payload (reading)\n    the setting is `deserialize: 'records'`, there is no need to use `ids` when\n    extracting as that is the default behaviour without this mixin if you are using\n    the vanilla `EmbeddedRecordsMixin`. Likewise, to embed JSON in the payload while\n    serializing `serialize: 'records'` is the setting to use. There is an option of\n    not embedding JSON in the serialized payload by using `serialize: 'ids'`. If you\n    do not want the relationship sent at all, you can use `serialize: false`.\n\n\n    ### EmbeddedRecordsMixin defaults\n    If you do not overwrite `attrs` for a specific relationship, the `EmbeddedRecordsMixin`\n    will behave in the following way:\n\n    BelongsTo: `{ serialize: 'id', deserialize: 'id' }`\n    HasMany:   `{ serialize: false, deserialize: 'ids' }`\n\n    ### Model Relationships\n\n    Embedded records must have a model defined to be extracted and serialized. Note that\n    when defining any relationships on your model such as `belongsTo` and `hasMany`, you\n    should not both specify `async: true` and also indicate through the serializer's\n    `attrs` attribute that the related model should be embedded for deserialization.\n    If a model is declared embedded for deserialization (`embedded: 'always'` or `deserialize: 'records'`),\n    then do not use `async: true`.\n\n    To successfully extract and serialize embedded records the model relationships\n    must be set up correctly. See the\n    [defining relationships](https://guides.emberjs.com/current/models/relationships)\n    section of the **Defining Models** guide page.\n\n    Records without an `id` property are not considered embedded records, model\n    instances must have an `id` property to be used with Ember Data.\n\n    ### Example JSON payloads, Models and Serializers\n\n    **When customizing a serializer it is important to grok what the customizations\n    are. Please read the docs for the methods this mixin provides, in case you need\n    to modify it to fit your specific needs.**\n\n    For example, review the docs for each method of this mixin:\n    * [normalize](/ember-data/release/classes/EmbeddedRecordsMixin/methods/normalize?anchor=normalize)\n    * [serializeBelongsTo](/ember-data/release/classes/EmbeddedRecordsMixin/methods/serializeBelongsTo?anchor=serializeBelongsTo)\n    * [serializeHasMany](/ember-data/release/classes/EmbeddedRecordsMixin/methods/serializeHasMany?anchor=serializeHasMany)\n\n    @class EmbeddedRecordsMixin\n  */\n  var embeddedRecordsMixin = Ember.Mixin.create({\n    /**\n      Normalize the record and recursively normalize/extract all the embedded records\n      while pushing them into the store as they are encountered\n       A payload with an attr configured for embedded records needs to be extracted:\n       ```js\n      {\n        \"post\": {\n          \"id\": \"1\"\n          \"title\": \"Rails is omakase\",\n          \"comments\": [{\n            \"id\": \"1\",\n            \"body\": \"Rails is unagi\"\n          }, {\n            \"id\": \"2\",\n            \"body\": \"Omakase O_o\"\n          }]\n        }\n      }\n      ```\n     @method normalize\n     @param {Model} typeClass\n     @param {Object} hash to be normalized\n     @param {String} prop the hash has been referenced by\n     @return {Object} the normalized hash\n    **/\n    normalize(typeClass, hash, prop) {\n      var normalizedHash = this._super(typeClass, hash, prop);\n\n      return this._extractEmbeddedRecords(this, this.store, typeClass, normalizedHash);\n    },\n\n    keyForRelationship(key, typeClass, method) {\n      if (method === 'serialize' && this.hasSerializeRecordsOption(key) || method === 'deserialize' && this.hasDeserializeRecordsOption(key)) {\n        return this.keyForAttribute(key, method);\n      } else {\n        return this._super(key, typeClass, method) || key;\n      }\n    },\n\n    /**\n      Serialize `belongsTo` relationship when it is configured as an embedded object.\n       This example of an author model belongs to a post model:\n       ```js\n      import Model, { attr, belongsTo } from '@ember-data/model';\n       Post = Model.extend({\n        title:    attr('string'),\n        body:     attr('string'),\n        author:   belongsTo('author')\n      });\n       Author = Model.extend({\n        name:     attr('string'),\n        post:     belongsTo('post')\n      });\n      ```\n       Use a custom (type) serializer for the post model to configure embedded author\n       ```app/serializers/post.js\n      import RESTSerializer, { EmbeddedRecordsMixin } from '@ember-data/serializer/rest';\n       export default RESTSerializer.extend(EmbeddedRecordsMixin, {\n        attrs: {\n          author: { embedded: 'always' }\n        }\n      })\n      ```\n       A payload with an attribute configured for embedded records can serialize\n      the records together under the root attribute's payload:\n       ```js\n      {\n        \"post\": {\n          \"id\": \"1\"\n          \"title\": \"Rails is omakase\",\n          \"author\": {\n            \"id\": \"2\"\n            \"name\": \"dhh\"\n          }\n        }\n      }\n      ```\n       @method serializeBelongsTo\n      @param {Snapshot} snapshot\n      @param {Object} json\n      @param {Object} relationship\n    */\n    serializeBelongsTo(snapshot, json, relationship) {\n      var attr = relationship.key;\n\n      if (this.noSerializeOptionSpecified(attr)) {\n        this._super(snapshot, json, relationship);\n\n        return;\n      }\n\n      var includeIds = this.hasSerializeIdsOption(attr);\n      var includeRecords = this.hasSerializeRecordsOption(attr);\n      var embeddedSnapshot = snapshot.belongsTo(attr);\n\n      if (includeIds) {\n        var serializedKey = this._getMappedKey(relationship.key, snapshot.type);\n\n        if (serializedKey === relationship.key && this.keyForRelationship) {\n          serializedKey = this.keyForRelationship(relationship.key, relationship.kind, 'serialize');\n        }\n\n        if (!embeddedSnapshot) {\n          json[serializedKey] = null;\n        } else {\n          json[serializedKey] = embeddedSnapshot.id;\n\n          if (relationship.options.polymorphic) {\n            this.serializePolymorphicType(snapshot, json, relationship);\n          }\n        }\n      } else if (includeRecords) {\n        this._serializeEmbeddedBelongsTo(snapshot, json, relationship);\n      }\n    },\n\n    _serializeEmbeddedBelongsTo(snapshot, json, relationship) {\n      var embeddedSnapshot = snapshot.belongsTo(relationship.key);\n\n      var serializedKey = this._getMappedKey(relationship.key, snapshot.type);\n\n      if (serializedKey === relationship.key && this.keyForRelationship) {\n        serializedKey = this.keyForRelationship(relationship.key, relationship.kind, 'serialize');\n      }\n\n      if (!embeddedSnapshot) {\n        json[serializedKey] = null;\n      } else {\n        json[serializedKey] = embeddedSnapshot.serialize({\n          includeId: true\n        });\n        this.removeEmbeddedForeignKey(snapshot, embeddedSnapshot, relationship, json[serializedKey]);\n\n        if (relationship.options.polymorphic) {\n          this.serializePolymorphicType(snapshot, json, relationship);\n        }\n      }\n    },\n\n    /**\n      Serializes `hasMany` relationships when it is configured as embedded objects.\n       This example of a post model has many comments:\n       ```js\n      import Model, { attr, belongsTo, hasMany } from '@ember-data/model';\n       Post = Model.extend({\n        title:    attr('string'),\n        body:     attr('string'),\n        comments: hasMany('comment')\n      });\n       Comment = Model.extend({\n        body:     attr('string'),\n        post:     belongsTo('post')\n      });\n      ```\n       Use a custom (type) serializer for the post model to configure embedded comments\n       ```app/serializers/post.js\n      import RESTSerializer, { EmbeddedRecordsMixin } from '@ember-data/serializer/rest';\n       export default RESTSerializer.extend(EmbeddedRecordsMixin, {\n        attrs: {\n          comments: { embedded: 'always' }\n        }\n      })\n      ```\n       A payload with an attribute configured for embedded records can serialize\n      the records together under the root attribute's payload:\n       ```js\n      {\n        \"post\": {\n          \"id\": \"1\"\n          \"title\": \"Rails is omakase\",\n          \"body\": \"I want this for my ORM, I want that for my template language...\"\n          \"comments\": [{\n            \"id\": \"1\",\n            \"body\": \"Rails is unagi\"\n          }, {\n            \"id\": \"2\",\n            \"body\": \"Omakase O_o\"\n          }]\n        }\n      }\n      ```\n       The attrs options object can use more specific instruction for extracting and\n      serializing. When serializing, an option to embed `ids`, `ids-and-types` or `records` can be set.\n      When extracting the only option is `records`.\n       So `{ embedded: 'always' }` is shorthand for:\n      `{ serialize: 'records', deserialize: 'records' }`\n       To embed the `ids` for a related object (using a hasMany relationship):\n       ```app/serializers/post.js\n      import RESTSerializer, { EmbeddedRecordsMixin } from '@ember-data/serializer/rest';\n       export default RESTSerializer.extend(EmbeddedRecordsMixin, {\n        attrs: {\n          comments: { serialize: 'ids', deserialize: 'records' }\n        }\n      })\n      ```\n       ```js\n      {\n        \"post\": {\n          \"id\": \"1\"\n          \"title\": \"Rails is omakase\",\n          \"body\": \"I want this for my ORM, I want that for my template language...\"\n          \"comments\": [\"1\", \"2\"]\n        }\n      }\n      ```\n       To embed the relationship as a collection of objects with `id` and `type` keys, set\n      `ids-and-types` for the related object.\n       This is particularly useful for polymorphic relationships where records don't share\n      the same table and the `id` is not enough information.\n       For example having a user that has many pets:\n       ```js\n      User = Model.extend({\n        name: attr('string'),\n        pets: hasMany('pet', { polymorphic: true })\n      });\n       Pet = Model.extend({\n        name: attr('string'),\n      });\n       Cat = Pet.extend({\n        // ...\n      });\n       Parrot = Pet.extend({\n        // ...\n      });\n      ```\n       ```app/serializers/user.js\n      import RESTSerializer, { EmbeddedRecordsMixin } from '@ember-data/serializer/rest';\n       export default RESTSerializer.extend(EmbeddedRecordsMixin, {\n        attrs: {\n          pets: { serialize: 'ids-and-types', deserialize: 'records' }\n        }\n      });\n      ```\n       ```js\n      {\n        \"user\": {\n          \"id\": \"1\"\n          \"name\": \"Bertin Osborne\",\n          \"pets\": [\n            { \"id\": \"1\", \"type\": \"Cat\" },\n            { \"id\": \"1\", \"type\": \"Parrot\"}\n          ]\n        }\n      }\n      ```\n       @method serializeHasMany\n      @param {Snapshot} snapshot\n      @param {Object} json\n      @param {Object} relationship\n    */\n    serializeHasMany(snapshot, json, relationship) {\n      var attr = relationship.key;\n\n      if (this.noSerializeOptionSpecified(attr)) {\n        this._super(snapshot, json, relationship);\n\n        return;\n      }\n\n      if (this.hasSerializeIdsOption(attr)) {\n        var serializedKey = this._getMappedKey(relationship.key, snapshot.type);\n\n        if (serializedKey === relationship.key && this.keyForRelationship) {\n          serializedKey = this.keyForRelationship(relationship.key, relationship.kind, 'serialize');\n        }\n\n        json[serializedKey] = snapshot.hasMany(attr, {\n          ids: true\n        });\n      } else if (this.hasSerializeRecordsOption(attr)) {\n        this._serializeEmbeddedHasMany(snapshot, json, relationship);\n      } else {\n        if (this.hasSerializeIdsAndTypesOption(attr)) {\n          this._serializeHasManyAsIdsAndTypes(snapshot, json, relationship);\n        }\n      }\n    },\n\n    /*\n      Serializes a hasMany relationship as an array of objects containing only `id` and `type`\n      keys.\n      This has its use case on polymorphic hasMany relationships where the server is not storing\n      all records in the same table using STI, and therefore the `id` is not enough information\n       TODO: Make the default in Ember-data 3.0??\n    */\n    _serializeHasManyAsIdsAndTypes(snapshot, json, relationship) {\n      var serializedKey = this.keyForAttribute(relationship.key, 'serialize');\n      var hasMany = snapshot.hasMany(relationship.key);\n      json[serializedKey] = Ember.A(hasMany).map(function (recordSnapshot) {\n        //\n        // I'm sure I'm being utterly naive here. Propably id is a configurate property and\n        // type too, and the modelName has to be normalized somehow.\n        //\n        return {\n          id: recordSnapshot.id,\n          type: recordSnapshot.modelName\n        };\n      });\n    },\n\n    _serializeEmbeddedHasMany(snapshot, json, relationship) {\n      var serializedKey = this._getMappedKey(relationship.key, snapshot.type);\n\n      if (serializedKey === relationship.key && this.keyForRelationship) {\n        serializedKey = this.keyForRelationship(relationship.key, relationship.kind, 'serialize');\n      }\n\n      ( Ember.warn(`The embedded relationship '${serializedKey}' is undefined for '${snapshot.modelName}' with id '${snapshot.id}'. Please include it in your original payload.`, Ember.typeOf(snapshot.hasMany(relationship.key)) !== 'undefined', {\n        id: 'ds.serializer.embedded-relationship-undefined'\n      }));\n      json[serializedKey] = this._generateSerializedHasMany(snapshot, relationship);\n    },\n\n    /*\n      Returns an array of embedded records serialized to JSON\n    */\n    _generateSerializedHasMany(snapshot, relationship) {\n      var hasMany = snapshot.hasMany(relationship.key);\n      var manyArray = Ember.A(hasMany);\n      var ret = new Array(manyArray.length);\n\n      for (var i = 0; i < manyArray.length; i++) {\n        var embeddedSnapshot = manyArray[i];\n        var embeddedJson = embeddedSnapshot.serialize({\n          includeId: true\n        });\n        this.removeEmbeddedForeignKey(snapshot, embeddedSnapshot, relationship, embeddedJson);\n        ret[i] = embeddedJson;\n      }\n\n      return ret;\n    },\n\n    /**\n      When serializing an embedded record, modify the property (in the `JSON` payload)\n      that refers to the parent record (foreign key for the relationship).\n       Serializing a `belongsTo` relationship removes the property that refers to the\n      parent record\n       Serializing a `hasMany` relationship does not remove the property that refers to\n      the parent record.\n       @method removeEmbeddedForeignKey\n      @param {Snapshot} snapshot\n      @param {Snapshot} embeddedSnapshot\n      @param {Object} relationship\n      @param {Object} json\n    */\n    removeEmbeddedForeignKey(snapshot, embeddedSnapshot, relationship, json) {\n      if (relationship.kind === 'belongsTo') {\n        var parentRecord = snapshot.type.inverseFor(relationship.key, this.store);\n\n        if (parentRecord) {\n          var name = parentRecord.name;\n          var embeddedSerializer = this.store.serializerFor(embeddedSnapshot.modelName);\n          var parentKey = embeddedSerializer.keyForRelationship(name, parentRecord.kind, 'deserialize');\n\n          if (parentKey) {\n            delete json[parentKey];\n          }\n        }\n      }\n      /*else if (relationship.kind === 'hasMany') {\n      return;\n      }*/\n\n    },\n\n    // checks config for attrs option to embedded (always) - serialize and deserialize\n    hasEmbeddedAlwaysOption(attr) {\n      var option = this.attrsOption(attr);\n      return option && option.embedded === 'always';\n    },\n\n    // checks config for attrs option to serialize ids\n    hasSerializeRecordsOption(attr) {\n      var alwaysEmbed = this.hasEmbeddedAlwaysOption(attr);\n      var option = this.attrsOption(attr);\n      return alwaysEmbed || option && option.serialize === 'records';\n    },\n\n    // checks config for attrs option to serialize records\n    hasSerializeIdsOption(attr) {\n      var option = this.attrsOption(attr);\n      return option && (option.serialize === 'ids' || option.serialize === 'id');\n    },\n\n    // checks config for attrs option to serialize records as objects containing id and types\n    hasSerializeIdsAndTypesOption(attr) {\n      var option = this.attrsOption(attr);\n      return option && (option.serialize === 'ids-and-types' || option.serialize === 'id-and-type');\n    },\n\n    // checks config for attrs option to serialize records\n    noSerializeOptionSpecified(attr) {\n      var option = this.attrsOption(attr);\n      return !(option && (option.serialize || option.embedded));\n    },\n\n    // checks config for attrs option to deserialize records\n    // a defined option object for a resource is treated the same as\n    // `deserialize: 'records'`\n    hasDeserializeRecordsOption(attr) {\n      var alwaysEmbed = this.hasEmbeddedAlwaysOption(attr);\n      var option = this.attrsOption(attr);\n      return alwaysEmbed || option && option.deserialize === 'records';\n    },\n\n    attrsOption(attr) {\n      var attrs = this.get('attrs');\n      return attrs && (attrs[Ember.String.camelize(attr)] || attrs[attr]);\n    },\n\n    /**\n     @method _extractEmbeddedRecords\n     @private\n    */\n    _extractEmbeddedRecords(serializer, store, typeClass, partial) {\n      typeClass.eachRelationship((key, relationship) => {\n        if (serializer.hasDeserializeRecordsOption(key)) {\n          if (relationship.kind === 'hasMany') {\n            this._extractEmbeddedHasMany(store, key, partial, relationship);\n          }\n\n          if (relationship.kind === 'belongsTo') {\n            this._extractEmbeddedBelongsTo(store, key, partial, relationship);\n          }\n        }\n      });\n      return partial;\n    },\n\n    /**\n     @method _extractEmbeddedHasMany\n     @private\n    */\n    _extractEmbeddedHasMany(store, key, hash, relationshipMeta) {\n      var relationshipHash = Ember.get(hash, `data.relationships.${key}.data`);\n\n      if (!relationshipHash) {\n        return;\n      }\n\n      var hasMany = new Array(relationshipHash.length);\n\n      for (var i = 0; i < relationshipHash.length; i++) {\n        var item = relationshipHash[i];\n\n        var {\n          data,\n          included\n        } = this._normalizeEmbeddedRelationship(store, relationshipMeta, item);\n\n        hash.included = hash.included || [];\n        hash.included.push(data);\n\n        if (included) {\n          hash.included.push(...included);\n        }\n\n        hasMany[i] = {\n          id: data.id,\n          type: data.type\n        };\n      }\n\n      var relationship = {\n        data: hasMany\n      };\n      Ember.set(hash, `data.relationships.${key}`, relationship);\n    },\n\n    /**\n     @method _extractEmbeddedBelongsTo\n     @private\n    */\n    _extractEmbeddedBelongsTo(store, key, hash, relationshipMeta) {\n      var relationshipHash = Ember.get(hash, `data.relationships.${key}.data`);\n\n      if (!relationshipHash) {\n        return;\n      }\n\n      var {\n        data,\n        included\n      } = this._normalizeEmbeddedRelationship(store, relationshipMeta, relationshipHash);\n\n      hash.included = hash.included || [];\n      hash.included.push(data);\n\n      if (included) {\n        hash.included.push(...included);\n      }\n\n      var belongsTo = {\n        id: data.id,\n        type: data.type\n      };\n      var relationship = {\n        data: belongsTo\n      };\n      Ember.set(hash, `data.relationships.${key}`, relationship);\n    },\n\n    /**\n     @method _normalizeEmbeddedRelationship\n     @private\n    */\n    _normalizeEmbeddedRelationship(store, relationshipMeta, relationshipHash) {\n      var modelName = relationshipMeta.type;\n\n      if (relationshipMeta.options.polymorphic) {\n        modelName = relationshipHash.type;\n      }\n\n      var modelClass = store.modelFor(modelName);\n      var serializer = store.serializerFor(modelName);\n      return serializer.normalize(modelClass, relationshipHash, null);\n    },\n\n    isEmbeddedRecordsMixin: true\n  });\n\n  /**\n    @module @ember-data/serializer\n  */\n\n  /*\n    Check if the passed model has a `type` attribute or a relationship named `type`.\n\n    @method modelHasAttributeOrRelationshipNamedType\n    @param modelClass\n   */\n  function modelHasAttributeOrRelationshipNamedType(modelClass) {\n    return Ember.get(modelClass, 'attributes').has('type') || Ember.get(modelClass, 'relationshipsByName').has('type');\n  }\n\n  /**\n    @module @ember-data/serializer\n  */\n\n  /**\n    The `Transform` class is used to serialize and deserialize model\n    attributes when they are saved or loaded from an\n    adapter. Subclassing `Transform` is useful for creating custom\n    attributes. All subclasses of `Transform` must implement a\n    `serialize` and a `deserialize` method.\n\n    Example\n\n    ```app/transforms/temperature.js\n    import Transform from '@ember-data/serializer/transform';\n\n    // Converts centigrade in the JSON to fahrenheit in the app\n    export default Transform.extend({\n      deserialize(serialized, options) {\n        return (serialized *  1.8) + 32;\n      },\n\n      serialize(deserialized, options) {\n        return (deserialized - 32) / 1.8;\n      }\n    });\n    ```\n\n    Usage\n\n    ```app/models/requirement.js\n    import Model, { attr } from '@ember-data/model';\n\n    export default Model.extend({\n      name: attr('string'),\n      temperature: attr('temperature')\n    });\n    ```\n\n    The options passed into the `attr` function when the attribute is\n    declared on the model is also available in the transform.\n\n    ```app/models/post.js\n    import Model, { attr } from '@ember-data/model';\n\n    export default Model.extend({\n      title: attr('string'),\n      markdown: attr('markdown', {\n        markdown: {\n          gfm: false,\n          sanitize: true\n        }\n      })\n    });\n    ```\n\n    ```app/transforms/markdown.js\n    import Transform from '@ember-data/serializer/transform';\n\n    export default Transform.extend({\n      serialize(deserialized, options) {\n        return deserialized.raw;\n      },\n\n      deserialize(serialized, options) {\n        var markdownOptions = options.markdown || {};\n\n        return marked(serialized, markdownOptions);\n      }\n    });\n    ```\n\n    @class Transform\n   */\n  var Transform = Ember.Object.extend({\n    /**\n      When given a deserialized value from a record attribute this\n      method must return the serialized value.\n       Example\n       ```javascript\n      import { isEmpty } from '@ember/utils';\n       serialize(deserialized, options) {\n        return isEmpty(deserialized) ? null : Number(deserialized);\n      }\n      ```\n       @method serialize\n      @param deserialized The deserialized value\n      @param options hash of options passed to `attr`\n      @return The serialized value\n    */\n    serialize: null,\n\n    /**\n      When given a serialized value from a JSON object this method must\n      return the deserialized value for the record attribute.\n       Example\n       ```javascript\n      deserialize(serialized, options) {\n        return empty(serialized) ? null : Number(serialized);\n      }\n      ```\n       @method deserialize\n      @param serialized The serialized value\n      @param options hash of options passed to `attr`\n      @return The deserialized value\n    */\n    deserialize: null\n  });\n\n  /**\n    @module @ember-data/serializer\n  */\n\n  /**\n    The `BooleanTransform` class is used to serialize and deserialize\n    boolean attributes on Ember Data record objects. This transform is\n    used when `boolean` is passed as the type parameter to the\n    [attr](/ember-data/release/functions/@ember-data%2Fmodel/attr) function.\n\n    Usage\n\n    ```app/models/user.js\n    import Model, { attr } from '@ember-data/model';\n\n    export default Model.extend({\n      isAdmin: attr('boolean'),\n      name: attr('string'),\n      email: attr('string')\n    });\n    ```\n\n    By default, the boolean transform only allows for values of `true` or\n    `false`. You can opt into allowing `null` values for\n    boolean attributes via `attr('boolean', { allowNull: true })`\n\n    ```app/models/user.js\n    import Model, { attr } from '@ember-data/model';\n\n    export default Model.extend({\n      email: attr('string'),\n      username: attr('string'),\n      wantsWeeklyEmail: attr('boolean', { allowNull: true })\n    });\n    ```\n\n    @class BooleanTransform\n    @extends Transform\n   */\n\n  var boolean = Transform.extend({\n    deserialize(serialized, options) {\n      if (Ember.isNone(serialized) && options.allowNull === true) {\n        return null;\n      }\n\n      var type = typeof serialized;\n\n      if (type === 'boolean') {\n        return serialized;\n      } else if (type === 'string') {\n        return /^(true|t|1)$/i.test(serialized);\n      } else if (type === 'number') {\n        return serialized === 1;\n      } else {\n        return false;\n      }\n    },\n\n    serialize(deserialized, options) {\n      if (Ember.isNone(deserialized) && options.allowNull === true) {\n        return null;\n      }\n\n      return Boolean(deserialized);\n    }\n\n  });\n\n  /**\n    @module @ember-data/serializer\n  */\n\n  /**\n   The `DateTransform` class is used to serialize and deserialize\n   date attributes on Ember Data record objects. This transform is used\n   when `date` is passed as the type parameter to the\n   [attr](/ember-data/release/functions/@ember-data%2Fmodel/attr) function. It uses the [`ISO 8601`](https://en.wikipedia.org/wiki/ISO_8601)\n   standard.\n\n   ```app/models/score.js\n   import Model, { attr, belongsTo } from '@ember-data/model';\n\n   export default Model.extend({\n      value: attr('number'),\n      player: belongsTo('player'),\n      date: attr('date')\n    });\n   ```\n\n   @class DateTransform\n   @extends Transform\n   */\n\n  var date = Transform.extend({\n    deserialize(serialized) {\n      var type = typeof serialized;\n\n      if (type === 'string') {\n        var offset = serialized.indexOf('+');\n\n        if (offset !== -1 && serialized.length - 5 === offset) {\n          offset += 3;\n          return new Date(serialized.slice(0, offset) + ':' + serialized.slice(offset));\n        }\n\n        return new Date(serialized);\n      } else if (type === 'number') {\n        return new Date(serialized);\n      } else if (serialized === null || serialized === undefined) {\n        // if the value is null return null\n        // if the value is not present in the data return undefined\n        return serialized;\n      } else {\n        return null;\n      }\n    },\n\n    serialize(date) {\n      if (date instanceof Date && !isNaN(date)) {\n        return date.toISOString();\n      } else {\n        return null;\n      }\n    }\n\n  });\n\n  /**\n    @module @ember-data/serializer\n  */\n\n  function isNumber(value) {\n    return value === value && value !== Infinity && value !== -Infinity;\n  }\n  /**\n    The `NumberTransform` class is used to serialize and deserialize\n    numeric attributes on Ember Data record objects. This transform is\n    used when `number` is passed as the type parameter to the\n    [attr](/ember-data/release/functions/@ember-data%2Fmodel/attr) function.\n\n    Usage\n\n    ```app/models/score.js\n    import Model, { attr, belongsTo } from '@ember-data/model';\n\n    export default Model.extend({\n      value: attr('number'),\n      player: belongsTo('player'),\n      date: attr('date')\n    });\n    ```\n\n    @class NumberTransform\n    @extends Transform\n   */\n\n\n  var number = Transform.extend({\n    deserialize(serialized) {\n      var transformed;\n\n      if (serialized === '' || serialized === null || serialized === undefined) {\n        return null;\n      } else {\n        transformed = Number(serialized);\n        return isNumber(transformed) ? transformed : null;\n      }\n    },\n\n    serialize(deserialized) {\n      var transformed;\n\n      if (deserialized === '' || deserialized === null || deserialized === undefined) {\n        return null;\n      } else {\n        transformed = Number(deserialized);\n        return isNumber(transformed) ? transformed : null;\n      }\n    }\n\n  });\n\n  /**\n    @module @ember-data/serializer\n  */\n\n  /**\n    The `StringTransform` class is used to serialize and deserialize\n    string attributes on Ember Data record objects. This transform is\n    used when `string` is passed as the type parameter to the\n    [attr](/ember-data/release/functions/@ember-data%2Fmodel/attr) function.\n\n    Usage\n\n    ```app/models/user.js\n    import Model, { attr, belongsTo } from '@ember-data/model';\n\n    export default Model.extend({\n      isAdmin: attr('boolean'),\n      name: attr('string'),\n      email: attr('string')\n    });\n    ```\n\n    @class StringTransform\n    @extends Transform\n   */\n\n  var string = Transform.extend({\n    deserialize(serialized) {\n      return Ember.isNone(serialized) ? null : String(serialized);\n    },\n\n    serialize(deserialized) {\n      return Ember.isNone(deserialized) ? null : String(deserialized);\n    }\n\n  });\n\n  exports.BooleanTransform = boolean;\n  exports.DateTransform = date;\n  exports.EmbeddedRecordsMixin = embeddedRecordsMixin;\n  exports.NumberTransform = number;\n  exports.StringTransform = string;\n  exports.Transform = Transform;\n  exports.modelHasAttributeOrRelationshipNamedType = modelHasAttributeOrRelationshipNamedType;\n\n  Object.defineProperty(exports, '__esModule', { value: true });\n\n});\n","define(\"@ember-data/serializer/index\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n    `Serializer` is an abstract base class that you should override in your\n    application to customize it for your backend. The minimum set of methods\n    that you should implement is:\n  \n      * `normalizeResponse()`\n      * `serialize()`\n  \n    And you can optionally override the following methods:\n  \n      * `normalize()`\n  \n    For an example implementation, see\n    [JSONSerializer](JSONSerializer), the included JSON serializer.\n  \n    @class Serializer\n    @extends EmberObject\n  */\n  var _default = Ember.Object.extend({\n    /**\n      The `store` property is the application's `store` that contains\n      all records. It can be used to look up serializers for other model\n      types that may be nested inside the payload response.\n       Example:\n       ```js\n      Serializer.extend({\n        extractRelationship(relationshipModelName, relationshipHash) {\n          var modelClass = this.store.modelFor(relationshipModelName);\n          var relationshipSerializer = this.store.serializerFor(relationshipModelName);\n          return relationshipSerializer.normalize(modelClass, relationshipHash);\n        }\n      });\n      ```\n       @property store\n      @type {Store}\n      @public\n    */\n\n    /**\n      The `normalizeResponse` method is used to normalize a payload from the\n      server to a JSON-API Document.\n       http://jsonapi.org/format/#document-structure\n       Example:\n       ```js\n      Serializer.extend({\n        normalizeResponse(store, primaryModelClass, payload, id, requestType) {\n          if (requestType === 'findRecord') {\n            return this.normalize(primaryModelClass, payload);\n          } else {\n            return payload.reduce(function(documentHash, item) {\n              let { data, included } = this.normalize(primaryModelClass, item);\n              documentHash.included.push(...included);\n              documentHash.data.push(data);\n              return documentHash;\n            }, { data: [], included: [] })\n          }\n        }\n      });\n      ```\n       @since 1.13.0\n      @method normalizeResponse\n      @param {Store} store\n      @param {Model} primaryModelClass\n      @param {Object} payload\n      @param {String|Number} id\n      @param {String} requestType\n      @return {Object} JSON-API Document\n    */\n    normalizeResponse: null,\n\n    /**\n      The `serialize` method is used when a record is saved in order to convert\n      the record into the form that your external data source expects.\n       `serialize` takes an optional `options` hash with a single option:\n       - `includeId`: If this is `true`, `serialize` should include the ID\n        in the serialized object it builds.\n       Example:\n       ```js\n      Serializer.extend({\n        serialize(snapshot, options) {\n          var json = {\n            id: snapshot.id\n          };\n           snapshot.eachAttribute((key, attribute) => {\n            json[key] = snapshot.attr(key);\n          });\n           snapshot.eachRelationship((key, relationship) => {\n            if (relationship.kind === 'belongsTo') {\n              json[key] = snapshot.belongsTo(key, { id: true });\n            } else if (relationship.kind === 'hasMany') {\n              json[key] = snapshot.hasMany(key, { ids: true });\n            }\n          });\n           return json;\n        },\n      });\n      ```\n       @method serialize\n      @param {Snapshot} snapshot\n      @param {Object} [options]\n      @return {Object}\n    */\n    serialize: null,\n\n    /**\n      The `normalize` method is used to convert a payload received from your\n      external data source into the normalized form `store.push()` expects. You\n      should override this method, munge the hash and return the normalized\n      payload.\n       Example:\n       ```js\n      Serializer.extend({\n        normalize(modelClass, resourceHash) {\n          var data = {\n            id:            resourceHash.id,\n            type:          modelClass.modelName,\n            attributes:    resourceHash\n          };\n          return { data: data };\n        }\n      })\n      ```\n       @method normalize\n      @param {Model} typeClass\n      @param {Object} hash\n      @return {Object}\n    */\n    normalize(typeClass, hash) {\n      return hash;\n    }\n\n  });\n\n  _exports.default = _default;\n});","define(\"@ember-data/serializer/json-api\", [\"exports\", \"ember-inflector\", \"@ember-data/serializer/json\", \"@ember-data/store\"], function (_exports, _emberInflector, _json, _store) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n    @module @ember-data/serializer\n  */\n\n  /**\n    Ember Data 2.0 Serializer:\n  \n    In Ember Data a Serializer is used to serialize and deserialize\n    records when they are transferred in and out of an external source.\n    This process involves normalizing property names, transforming\n    attribute values and serializing relationships.\n  \n    `JSONAPISerializer` supports the http://jsonapi.org/ spec and is the\n    serializer recommended by Ember Data.\n  \n    This serializer normalizes a JSON API payload that looks like:\n  \n    ```app/models/player.js\n    import Model, { attr, belongsTo } from '@ember-data/model';\n  \n    export default Model.extend({\n      name: attr('string'),\n      skill: attr('string'),\n      gamesPlayed: attr('number'),\n      club: belongsTo('club')\n    });\n    ```\n  \n    ```app/models/club.js\n    import Model, { attr, hasMany } from '@ember-data/model';\n  \n    export default Model.extend({\n      name: attr('string'),\n      location: attr('string'),\n      players: hasMany('player')\n    });\n    ```\n  \n    ```js\n      {\n        \"data\": [\n          {\n            \"attributes\": {\n              \"name\": \"Benfica\",\n              \"location\": \"Portugal\"\n            },\n            \"id\": \"1\",\n            \"relationships\": {\n              \"players\": {\n                \"data\": [\n                  {\n                    \"id\": \"3\",\n                    \"type\": \"players\"\n                  }\n                ]\n              }\n            },\n            \"type\": \"clubs\"\n          }\n        ],\n        \"included\": [\n          {\n            \"attributes\": {\n              \"name\": \"Eusebio Silva Ferreira\",\n              \"skill\": \"Rocket shot\",\n              \"games-played\": 431\n            },\n            \"id\": \"3\",\n            \"relationships\": {\n              \"club\": {\n                \"data\": {\n                  \"id\": \"1\",\n                  \"type\": \"clubs\"\n                }\n              }\n            },\n            \"type\": \"players\"\n          }\n        ]\n      }\n    ```\n  \n    to the format that the Ember Data store expects.\n  \n    ### Customizing meta\n  \n    Since a JSON API Document can have meta defined in multiple locations you can\n    use the specific serializer hooks if you need to customize the meta.\n  \n    One scenario would be to camelCase the meta keys of your payload. The example\n    below shows how this could be done using `normalizeArrayResponse` and\n    `extractRelationship`.\n  \n    ```app/serializers/application.js\n    export default JSONAPISerializer.extend({\n      normalizeArrayResponse(store, primaryModelClass, payload, id, requestType) {\n        let normalizedDocument = this._super(...arguments);\n  \n        // Customize document meta\n        normalizedDocument.meta = camelCaseKeys(normalizedDocument.meta);\n  \n        return normalizedDocument;\n      },\n  \n      extractRelationship(relationshipHash) {\n        let normalizedRelationship = this._super(...arguments);\n  \n        // Customize relationship meta\n        normalizedRelationship.meta = camelCaseKeys(normalizedRelationship.meta);\n  \n        return normalizedRelationship;\n      }\n    });\n    ```\n  \n    @since 1.13.0\n    @class JSONAPISerializer\n    @extends JSONSerializer\n  */\n  var JSONAPISerializer = _json.default.extend({\n    /**\n      @method _normalizeDocumentHelper\n      @param {Object} documentHash\n      @return {Object}\n      @private\n    */\n    _normalizeDocumentHelper(documentHash) {\n      if (Ember.typeOf(documentHash.data) === 'object') {\n        documentHash.data = this._normalizeResourceHelper(documentHash.data);\n      } else if (Array.isArray(documentHash.data)) {\n        var ret = new Array(documentHash.data.length);\n\n        for (var i = 0; i < documentHash.data.length; i++) {\n          var data = documentHash.data[i];\n          ret[i] = this._normalizeResourceHelper(data);\n        }\n\n        documentHash.data = ret;\n      }\n\n      if (Array.isArray(documentHash.included)) {\n        var _ret = new Array();\n\n        for (var _i = 0; _i < documentHash.included.length; _i++) {\n          var included = documentHash.included[_i];\n\n          var normalized = this._normalizeResourceHelper(included);\n\n          if (normalized !== null) {\n            // can be null when unknown type is encountered\n            _ret.push(normalized);\n          }\n        }\n\n        documentHash.included = _ret;\n      }\n\n      return documentHash;\n    },\n\n    /**\n      @method _normalizeRelationshipDataHelper\n      @param {Object} relationshipDataHash\n      @return {Object}\n      @private\n    */\n    _normalizeRelationshipDataHelper(relationshipDataHash) {\n      relationshipDataHash.type = this.modelNameFromPayloadKey(relationshipDataHash.type);\n      return relationshipDataHash;\n    },\n\n    /**\n      @method _normalizeResourceHelper\n      @param {Object} resourceHash\n      @return {Object}\n      @private\n    */\n    _normalizeResourceHelper(resourceHash) {\n      (true && !(!Ember.isNone(resourceHash.type)) && Ember.assert(this.warnMessageForUndefinedType(), !Ember.isNone(resourceHash.type), {\n        id: 'ds.serializer.type-is-undefined'\n      }));\n      var modelName, usedLookup;\n      modelName = this.modelNameFromPayloadKey(resourceHash.type);\n      usedLookup = 'modelNameFromPayloadKey';\n\n      if (!this.store._hasModelFor(modelName)) {\n        (true && Ember.warn(this.warnMessageNoModelForType(modelName, resourceHash.type, usedLookup), false, {\n          id: 'ds.serializer.model-for-type-missing'\n        }));\n        return null;\n      }\n\n      var modelClass = this.store.modelFor(modelName);\n      var serializer = this.store.serializerFor(modelName);\n      var {\n        data\n      } = serializer.normalize(modelClass, resourceHash);\n      return data;\n    },\n\n    /**\n      @method pushPayload\n      @param {Store} store\n      @param {Object} payload\n    */\n    pushPayload(store, payload) {\n      var normalizedPayload = this._normalizeDocumentHelper(payload);\n\n      store.push(normalizedPayload);\n    },\n\n    /**\n      @method _normalizeResponse\n      @param {Store} store\n      @param {Model} primaryModelClass\n      @param {Object} payload\n      @param {String|Number} id\n      @param {String} requestType\n      @param {Boolean} isSingle\n      @return {Object} JSON-API Document\n      @private\n    */\n    _normalizeResponse(store, primaryModelClass, payload, id, requestType, isSingle) {\n      var normalizedPayload = this._normalizeDocumentHelper(payload);\n\n      return normalizedPayload;\n    },\n\n    normalizeQueryRecordResponse() {\n      var normalized = this._super(...arguments);\n\n      (true && !(!Array.isArray(normalized.data)) && Ember.assert('Expected the primary data returned by the serializer for a `queryRecord` response to be a single object but instead it was an array.', !Array.isArray(normalized.data), {\n        id: 'ds.serializer.json-api.queryRecord-array-response'\n      }));\n      return normalized;\n    },\n\n    extractAttributes(modelClass, resourceHash) {\n      var attributes = {};\n\n      if (resourceHash.attributes) {\n        modelClass.eachAttribute(key => {\n          var attributeKey = this.keyForAttribute(key, 'deserialize');\n\n          if (resourceHash.attributes[attributeKey] !== undefined) {\n            attributes[key] = resourceHash.attributes[attributeKey];\n          }\n\n          if (true\n          /* DEBUG */\n          ) {\n            if (resourceHash.attributes[attributeKey] === undefined && resourceHash.attributes[key] !== undefined) {\n              (true && !(false) && Ember.assert(`Your payload for '${modelClass.modelName}' contains '${key}', but your serializer is setup to look for '${attributeKey}'. This is most likely because Ember Data's JSON API serializer dasherizes attribute keys by default. You should subclass JSONAPISerializer and implement 'keyForAttribute(key) { return key; }' to prevent Ember Data from customizing your attribute keys.`, false));\n            }\n          }\n        });\n      }\n\n      return attributes;\n    },\n\n    /**\n       Returns a relationship formatted as a JSON-API \"relationship object\".\n        http://jsonapi.org/format/#document-resource-object-relationships\n        @method extractRelationship\n       @param {Object} relationshipHash\n       @return {Object}\n    */\n    extractRelationship(relationshipHash) {\n      if (Ember.typeOf(relationshipHash.data) === 'object') {\n        relationshipHash.data = this._normalizeRelationshipDataHelper(relationshipHash.data);\n      }\n\n      if (Array.isArray(relationshipHash.data)) {\n        var ret = new Array(relationshipHash.data.length);\n\n        for (var i = 0; i < relationshipHash.data.length; i++) {\n          var data = relationshipHash.data[i];\n          ret[i] = this._normalizeRelationshipDataHelper(data);\n        }\n\n        relationshipHash.data = ret;\n      }\n\n      return relationshipHash;\n    },\n\n    /**\n       Returns the resource's relationships formatted as a JSON-API \"relationships object\".\n        http://jsonapi.org/format/#document-resource-object-relationships\n        @method extractRelationships\n       @param {Object} modelClass\n       @param {Object} resourceHash\n       @return {Object}\n    */\n    extractRelationships(modelClass, resourceHash) {\n      var relationships = {};\n\n      if (resourceHash.relationships) {\n        modelClass.eachRelationship((key, relationshipMeta) => {\n          var relationshipKey = this.keyForRelationship(key, relationshipMeta.kind, 'deserialize');\n\n          if (resourceHash.relationships[relationshipKey] !== undefined) {\n            var relationshipHash = resourceHash.relationships[relationshipKey];\n            relationships[key] = this.extractRelationship(relationshipHash);\n          }\n\n          if (true\n          /* DEBUG */\n          ) {\n            if (resourceHash.relationships[relationshipKey] === undefined && resourceHash.relationships[key] !== undefined) {\n              (true && !(false) && Ember.assert(`Your payload for '${modelClass.modelName}' contains '${key}', but your serializer is setup to look for '${relationshipKey}'. This is most likely because Ember Data's JSON API serializer dasherizes relationship keys by default. You should subclass JSONAPISerializer and implement 'keyForRelationship(key) { return key; }' to prevent Ember Data from customizing your relationship keys.`, false));\n            }\n          }\n        });\n      }\n\n      return relationships;\n    },\n\n    /**\n      @method _extractType\n      @param {Model} modelClass\n      @param {Object} resourceHash\n      @return {String}\n      @private\n    */\n    _extractType(modelClass, resourceHash) {\n      return this.modelNameFromPayloadKey(resourceHash.type);\n    },\n\n    /**\n      Dasherizes and singularizes the model name in the payload to match\n      the format Ember Data uses internally for the model name.\n       For example the key `posts` would be converted to `post` and the\n      key `studentAssesments` would be converted to `student-assesment`.\n       @method modelNameFromPayloadKey\n      @param {String} key\n      @return {String} the model's modelName\n    */\n    // TODO @deprecated Use modelNameFromPayloadType instead\n    modelNameFromPayloadKey(key) {\n      return (0, _emberInflector.singularize)((0, _store.normalizeModelName)(key));\n    },\n\n    /**\n      Converts the model name to a pluralized version of the model name.\n       For example `post` would be converted to `posts` and\n      `student-assesment` would be converted to `student-assesments`.\n       @method payloadKeyFromModelName\n      @param {String} modelName\n      @return {String}\n    */\n    // TODO @deprecated Use payloadTypeFromModelName instead\n    payloadKeyFromModelName(modelName) {\n      return (0, _emberInflector.pluralize)(modelName);\n    },\n\n    normalize(modelClass, resourceHash) {\n      if (resourceHash.attributes) {\n        this.normalizeUsingDeclaredMapping(modelClass, resourceHash.attributes);\n      }\n\n      if (resourceHash.relationships) {\n        this.normalizeUsingDeclaredMapping(modelClass, resourceHash.relationships);\n      }\n\n      var data = {\n        id: this.extractId(modelClass, resourceHash),\n        type: this._extractType(modelClass, resourceHash),\n        attributes: this.extractAttributes(modelClass, resourceHash),\n        relationships: this.extractRelationships(modelClass, resourceHash)\n      };\n      this.applyTransforms(modelClass, data.attributes);\n      return {\n        data\n      };\n    },\n\n    /**\n      `keyForAttribute` can be used to define rules for how to convert an\n      attribute name in your model to a key in your JSON.\n      By default `JSONAPISerializer` follows the format used on the examples of\n      http://jsonapi.org/format and uses dashes as the word separator in the JSON\n      attribute keys.\n       This behaviour can be easily customized by extending this method.\n       Example\n       ```app/serializers/application.js\n      import JSONAPISerializer from '@ember-data/serializer/json-api';\n      import { dasherize } from '@ember/string';\n       export default JSONAPISerializer.extend({\n        keyForAttribute(attr, method) {\n          return dasherize(attr).toUpperCase();\n        }\n      });\n      ```\n       @method keyForAttribute\n      @param {String} key\n      @param {String} method\n      @return {String} normalized key\n    */\n    keyForAttribute(key, method) {\n      return Ember.String.dasherize(key);\n    },\n\n    /**\n     `keyForRelationship` can be used to define a custom key when\n     serializing and deserializing relationship properties.\n     By default `JSONAPISerializer` follows the format used on the examples of\n     http://jsonapi.org/format and uses dashes as word separators in\n     relationship properties.\n      This behaviour can be easily customized by extending this method.\n      Example\n       ```app/serializers/post.js\n      import JSONAPISerializer from '@ember-data/serializer/json-api';\n      import { underscore } from '@ember/string';\n       export default JSONAPISerializer.extend({\n        keyForRelationship(key, relationship, method) {\n          return underscore(key);\n        }\n      });\n      ```\n     @method keyForRelationship\n     @param {String} key\n     @param {String} typeClass\n     @param {String} method\n     @return {String} normalized key\n    */\n    keyForRelationship(key, typeClass, method) {\n      return Ember.String.dasherize(key);\n    },\n\n    serialize(snapshot, options) {\n      var data = this._super(...arguments);\n\n      data.type = this.payloadKeyFromModelName(snapshot.modelName);\n      return {\n        data\n      };\n    },\n\n    serializeAttribute(snapshot, json, key, attribute) {\n      var type = attribute.type;\n\n      if (this._canSerialize(key)) {\n        json.attributes = json.attributes || {};\n        var value = snapshot.attr(key);\n\n        if (type) {\n          var transform = this.transformFor(type);\n          value = transform.serialize(value, attribute.options);\n        }\n\n        var payloadKey = this._getMappedKey(key, snapshot.type);\n\n        if (payloadKey === key) {\n          payloadKey = this.keyForAttribute(key, 'serialize');\n        }\n\n        json.attributes[payloadKey] = value;\n      }\n    },\n\n    serializeBelongsTo(snapshot, json, relationship) {\n      var key = relationship.key;\n\n      if (this._canSerialize(key)) {\n        var belongsTo = snapshot.belongsTo(key);\n        var belongsToIsNotNew;\n\n        if (false\n        /* CUSTOM_MODEL_CLASS */\n        ) {\n          belongsToIsNotNew = belongsTo && !belongsTo.isNew;\n        } else {\n          belongsToIsNotNew = belongsTo && belongsTo.record && !belongsTo.record.get('isNew');\n        }\n\n        if (belongsTo === null || belongsToIsNotNew) {\n          json.relationships = json.relationships || {};\n\n          var payloadKey = this._getMappedKey(key, snapshot.type);\n\n          if (payloadKey === key) {\n            payloadKey = this.keyForRelationship(key, 'belongsTo', 'serialize');\n          }\n\n          var data = null;\n\n          if (belongsTo) {\n            var payloadType = this.payloadKeyFromModelName(belongsTo.modelName);\n            data = {\n              type: payloadType,\n              id: belongsTo.id\n            };\n          }\n\n          json.relationships[payloadKey] = {\n            data\n          };\n        }\n      }\n    },\n\n    serializeHasMany(snapshot, json, relationship) {\n      var key = relationship.key;\n\n      if (this.shouldSerializeHasMany(snapshot, key, relationship)) {\n        var hasMany = snapshot.hasMany(key);\n\n        if (hasMany !== undefined) {\n          json.relationships = json.relationships || {};\n\n          var payloadKey = this._getMappedKey(key, snapshot.type);\n\n          if (payloadKey === key && this.keyForRelationship) {\n            payloadKey = this.keyForRelationship(key, 'hasMany', 'serialize');\n          } // only serialize has many relationships that are not new\n\n\n          var nonNewHasMany = hasMany.filter(item => item.record && !item.record.get('isNew'));\n          var data = new Array(nonNewHasMany.length);\n\n          for (var i = 0; i < nonNewHasMany.length; i++) {\n            var item = hasMany[i];\n            var payloadType = this.payloadKeyFromModelName(item.modelName);\n            data[i] = {\n              type: payloadType,\n              id: item.id\n            };\n          }\n\n          json.relationships[payloadKey] = {\n            data\n          };\n        }\n      }\n    }\n\n  });\n\n  if (true\n  /* DEBUG */\n  ) {\n    JSONAPISerializer.reopen({\n      willMergeMixin(props) {\n        var constructor = this.constructor;\n        (true && Ember.warn(`You've defined 'extractMeta' in ${constructor.toString()} which is not used for serializers extending JSONAPISerializer. Read more at https://api.emberjs.com/ember-data/release/classes/JSONAPISerializer on how to customize meta when using JSON API.`, Ember.isNone(props.extractMeta) || props.extractMeta === _json.default.prototype.extractMeta, {\n          id: 'ds.serializer.json-api.extractMeta'\n        }));\n        (true && Ember.warn('The JSONAPISerializer does not work with the EmbeddedRecordsMixin because the JSON API spec does not describe how to format embedded resources.', !props.isEmbeddedRecordsMixin, {\n          id: 'ds.serializer.embedded-records-mixin-not-supported'\n        }));\n      },\n\n      warnMessageForUndefinedType() {\n        return 'Encountered a resource object with an undefined type (resolved resource using ' + this.constructor.toString() + ')';\n      },\n\n      warnMessageNoModelForType(modelName, originalType, usedLookup) {\n        return `Encountered a resource object with type \"${originalType}\", but no model was found for model name \"${modelName}\" (resolved model name using '${this.constructor.toString()}.${usedLookup}(\"${originalType}\")').`;\n      }\n\n    });\n  }\n\n  var _default = JSONAPISerializer;\n  _exports.default = _default;\n});","define(\"@ember-data/serializer/json\", [\"exports\", \"@ember-data/serializer\", \"@ember-data/store\", \"@ember-data/store/-private\", \"@ember-data/serializer/-private\"], function (_exports, _serializer, _store, _private, _private2) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n    @module @ember-data/serializer\n  */\n\n  /**\n    Ember Data 2.0 Serializer:\n  \n    In Ember Data a Serializer is used to serialize and deserialize\n    records when they are transferred in and out of an external source.\n    This process involves normalizing property names, transforming\n    attribute values and serializing relationships.\n  \n    By default, Ember Data uses and recommends the `JSONAPISerializer`.\n  \n    `JSONSerializer` is useful for simpler or legacy backends that may\n    not support the http://jsonapi.org/ spec.\n  \n    For example, given the following `User` model and JSON payload:\n  \n    ```app/models/user.js\n    import Model, { attr, belongsTo, hasMany } from '@ember-data/model';\n  \n    export default Model.extend({\n      friends: hasMany('user'),\n      house: belongsTo('location'),\n  \n      name: attr('string')\n    });\n    ```\n  \n    ```js\n    {\n      id: 1,\n      name: 'Sebastian',\n      friends: [3, 4],\n      links: {\n        house: '/houses/lefkada'\n      }\n    }\n    ```\n  \n    `JSONSerializer` will normalize the JSON payload to the JSON API format that the\n    Ember Data store expects.\n  \n    You can customize how JSONSerializer processes its payload by passing options in\n    the `attrs` hash or by subclassing the `JSONSerializer` and overriding hooks:\n  \n      - To customize how a single record is normalized, use the `normalize` hook.\n      - To customize how `JSONSerializer` normalizes the whole server response, use the\n        `normalizeResponse` hook.\n      - To customize how `JSONSerializer` normalizes a specific response from the server,\n        use one of the many specific `normalizeResponse` hooks.\n      - To customize how `JSONSerializer` normalizes your id, attributes or relationships,\n        use the `extractId`, `extractAttributes` and `extractRelationships` hooks.\n  \n    The `JSONSerializer` normalization process follows these steps:\n  \n      - `normalizeResponse` - entry method to the serializer.\n      - `normalizeCreateRecordResponse` - a `normalizeResponse` for a specific operation is called.\n      - `normalizeSingleResponse`|`normalizeArrayResponse` - for methods like `createRecord` we expect\n        a single record back, while for methods like `findAll` we expect multiple records back.\n      - `normalize` - `normalizeArray` iterates and calls `normalize` for each of its records while `normalizeSingle`\n        calls it once. This is the method you most likely want to subclass.\n      - `extractId` | `extractAttributes` | `extractRelationships` - `normalize` delegates to these methods to\n        turn the record payload into the JSON API format.\n  \n    @class JSONSerializer\n    @extends Serializer\n  */\n  var JSONSerializer = _serializer.default.extend({\n    /**\n      The `primaryKey` is used when serializing and deserializing\n      data. Ember Data always uses the `id` property to store the id of\n      the record. The external source may not always follow this\n      convention. In these cases it is useful to override the\n      `primaryKey` property to match the `primaryKey` of your external\n      store.\n       Example\n       ```app/serializers/application.js\n      import JSONSerializer from '@ember-data/serializer/json';\n       export default JSONSerializer.extend({\n        primaryKey: '_id'\n      });\n      ```\n       @property primaryKey\n      @type {String}\n      @default 'id'\n    */\n    primaryKey: 'id',\n\n    /**\n      The `attrs` object can be used to declare a simple mapping between\n      property names on `Model` records and payload keys in the\n      serialized JSON object representing the record. An object with the\n      property `key` can also be used to designate the attribute's key on\n      the response payload.\n       Example\n       ```app/models/person.js\n      import Model, { attr } from '@ember-data/model';\n       export default Model.extend({\n        firstName: attr('string'),\n        lastName: attr('string'),\n        occupation: attr('string'),\n        admin: attr('boolean')\n      });\n      ```\n       ```app/serializers/person.js\n      import JSONSerializer from '@ember-data/serializer/json';\n       export default JSONSerializer.extend({\n        attrs: {\n          admin: 'is_admin',\n          occupation: { key: 'career' }\n        }\n      });\n      ```\n       You can also remove attributes and relationships by setting the `serialize`\n      key to `false` in your mapping object.\n       Example\n       ```app/serializers/person.js\n      import JSONSerializer from '@ember-data/serializer/json';\n       export default JSONSerializer.extend({\n        attrs: {\n          admin: { serialize: false },\n          occupation: { key: 'career' }\n        }\n      });\n      ```\n       When serialized:\n       ```javascript\n      {\n        \"firstName\": \"Harry\",\n        \"lastName\": \"Houdini\",\n        \"career\": \"magician\"\n      }\n      ```\n       Note that the `admin` is now not included in the payload.\n       Setting `serialize` to `true` enforces serialization for hasMany\n      relationships even if it's neither a many-to-many nor many-to-none\n      relationship.\n       @property attrs\n      @type {Object}\n    */\n    mergedProperties: ['attrs'],\n\n    /**\n     Given a subclass of `Model` and a JSON object this method will\n     iterate through each attribute of the `Model` and invoke the\n     `Transform#deserialize` method on the matching property of the\n     JSON object.  This method is typically called after the\n     serializer's `normalize` method.\n      @method applyTransforms\n     @private\n     @param {Model} typeClass\n     @param {Object} data The data to transform\n     @return {Object} data The transformed data object\n    */\n    applyTransforms(typeClass, data) {\n      var attributes = Ember.get(typeClass, 'attributes');\n      typeClass.eachTransformedAttribute((key, typeClass) => {\n        if (data[key] === undefined) {\n          return;\n        }\n\n        var transform = this.transformFor(typeClass);\n        var transformMeta = attributes.get(key);\n        data[key] = transform.deserialize(data[key], transformMeta.options);\n      });\n      return data;\n    },\n\n    /**\n      The `normalizeResponse` method is used to normalize a payload from the\n      server to a JSON-API Document.\n       http://jsonapi.org/format/#document-structure\n       This method delegates to a more specific normalize method based on\n      the `requestType`.\n       To override this method with a custom one, make sure to call\n      `return this._super(store, primaryModelClass, payload, id, requestType)` with your\n      pre-processed data.\n       Here's an example of using `normalizeResponse` manually:\n       ```javascript\n      socket.on('message', function(message) {\n        var data = message.data;\n        var modelClass = store.modelFor(data.modelName);\n        var serializer = store.serializerFor(data.modelName);\n        var normalized = serializer.normalizeSingleResponse(store, modelClass, data, data.id);\n         store.push(normalized);\n      });\n      ```\n       @since 1.13.0\n      @method normalizeResponse\n      @param {Store} store\n      @param {Model} primaryModelClass\n      @param {Object} payload\n      @param {String|Number} id\n      @param {String} requestType\n      @return {Object} JSON-API Document\n    */\n    normalizeResponse(store, primaryModelClass, payload, id, requestType) {\n      switch (requestType) {\n        case 'findRecord':\n          return this.normalizeFindRecordResponse(...arguments);\n\n        case 'queryRecord':\n          return this.normalizeQueryRecordResponse(...arguments);\n\n        case 'findAll':\n          return this.normalizeFindAllResponse(...arguments);\n\n        case 'findBelongsTo':\n          return this.normalizeFindBelongsToResponse(...arguments);\n\n        case 'findHasMany':\n          return this.normalizeFindHasManyResponse(...arguments);\n\n        case 'findMany':\n          return this.normalizeFindManyResponse(...arguments);\n\n        case 'query':\n          return this.normalizeQueryResponse(...arguments);\n\n        case 'createRecord':\n          return this.normalizeCreateRecordResponse(...arguments);\n\n        case 'deleteRecord':\n          return this.normalizeDeleteRecordResponse(...arguments);\n\n        case 'updateRecord':\n          return this.normalizeUpdateRecordResponse(...arguments);\n      }\n    },\n\n    /**\n      @since 1.13.0\n      @method normalizeFindRecordResponse\n      @param {Store} store\n      @param {Model} primaryModelClass\n      @param {Object} payload\n      @param {String|Number} id\n      @param {String} requestType\n      @return {Object} JSON-API Document\n    */\n    normalizeFindRecordResponse(store, primaryModelClass, payload, id, requestType) {\n      return this.normalizeSingleResponse(...arguments);\n    },\n\n    /**\n      @since 1.13.0\n      @method normalizeQueryRecordResponse\n      @param {Store} store\n      @param {Model} primaryModelClass\n      @param {Object} payload\n      @param {String|Number} id\n      @param {String} requestType\n      @return {Object} JSON-API Document\n    */\n    normalizeQueryRecordResponse(store, primaryModelClass, payload, id, requestType) {\n      return this.normalizeSingleResponse(...arguments);\n    },\n\n    /**\n      @since 1.13.0\n      @method normalizeFindAllResponse\n      @param {Store} store\n      @param {Model} primaryModelClass\n      @param {Object} payload\n      @param {String|Number} id\n      @param {String} requestType\n      @return {Object} JSON-API Document\n    */\n    normalizeFindAllResponse(store, primaryModelClass, payload, id, requestType) {\n      return this.normalizeArrayResponse(...arguments);\n    },\n\n    /**\n      @since 1.13.0\n      @method normalizeFindBelongsToResponse\n      @param {Store} store\n      @param {Model} primaryModelClass\n      @param {Object} payload\n      @param {String|Number} id\n      @param {String} requestType\n      @return {Object} JSON-API Document\n    */\n    normalizeFindBelongsToResponse(store, primaryModelClass, payload, id, requestType) {\n      return this.normalizeSingleResponse(...arguments);\n    },\n\n    /**\n      @since 1.13.0\n      @method normalizeFindHasManyResponse\n      @param {Store} store\n      @param {Model} primaryModelClass\n      @param {Object} payload\n      @param {String|Number} id\n      @param {String} requestType\n      @return {Object} JSON-API Document\n    */\n    normalizeFindHasManyResponse(store, primaryModelClass, payload, id, requestType) {\n      return this.normalizeArrayResponse(...arguments);\n    },\n\n    /**\n      @since 1.13.0\n      @method normalizeFindManyResponse\n      @param {Store} store\n      @param {Model} primaryModelClass\n      @param {Object} payload\n      @param {String|Number} id\n      @param {String} requestType\n      @return {Object} JSON-API Document\n    */\n    normalizeFindManyResponse(store, primaryModelClass, payload, id, requestType) {\n      return this.normalizeArrayResponse(...arguments);\n    },\n\n    /**\n      @since 1.13.0\n      @method normalizeQueryResponse\n      @param {Store} store\n      @param {Model} primaryModelClass\n      @param {Object} payload\n      @param {String|Number} id\n      @param {String} requestType\n      @return {Object} JSON-API Document\n    */\n    normalizeQueryResponse(store, primaryModelClass, payload, id, requestType) {\n      return this.normalizeArrayResponse(...arguments);\n    },\n\n    /**\n      @since 1.13.0\n      @method normalizeCreateRecordResponse\n      @param {Store} store\n      @param {Model} primaryModelClass\n      @param {Object} payload\n      @param {String|Number} id\n      @param {String} requestType\n      @return {Object} JSON-API Document\n    */\n    normalizeCreateRecordResponse(store, primaryModelClass, payload, id, requestType) {\n      return this.normalizeSaveResponse(...arguments);\n    },\n\n    /**\n      @since 1.13.0\n      @method normalizeDeleteRecordResponse\n      @param {Store} store\n      @param {Model} primaryModelClass\n      @param {Object} payload\n      @param {String|Number} id\n      @param {String} requestType\n      @return {Object} JSON-API Document\n    */\n    normalizeDeleteRecordResponse(store, primaryModelClass, payload, id, requestType) {\n      return this.normalizeSaveResponse(...arguments);\n    },\n\n    /**\n      @since 1.13.0\n      @method normalizeUpdateRecordResponse\n      @param {Store} store\n      @param {Model} primaryModelClass\n      @param {Object} payload\n      @param {String|Number} id\n      @param {String} requestType\n      @return {Object} JSON-API Document\n    */\n    normalizeUpdateRecordResponse(store, primaryModelClass, payload, id, requestType) {\n      return this.normalizeSaveResponse(...arguments);\n    },\n\n    /**\n      @since 1.13.0\n      @method normalizeSaveResponse\n      @param {Store} store\n      @param {Model} primaryModelClass\n      @param {Object} payload\n      @param {String|Number} id\n      @param {String} requestType\n      @return {Object} JSON-API Document\n    */\n    normalizeSaveResponse(store, primaryModelClass, payload, id, requestType) {\n      return this.normalizeSingleResponse(...arguments);\n    },\n\n    /**\n      @since 1.13.0\n      @method normalizeSingleResponse\n      @param {Store} store\n      @param {Model} primaryModelClass\n      @param {Object} payload\n      @param {String|Number} id\n      @param {String} requestType\n      @return {Object} JSON-API Document\n    */\n    normalizeSingleResponse(store, primaryModelClass, payload, id, requestType) {\n      return this._normalizeResponse(store, primaryModelClass, payload, id, requestType, true);\n    },\n\n    /**\n      @since 1.13.0\n      @method normalizeArrayResponse\n      @param {Store} store\n      @param {Model} primaryModelClass\n      @param {Object} payload\n      @param {String|Number} id\n      @param {String} requestType\n      @return {Object} JSON-API Document\n    */\n    normalizeArrayResponse(store, primaryModelClass, payload, id, requestType) {\n      return this._normalizeResponse(store, primaryModelClass, payload, id, requestType, false);\n    },\n\n    /**\n      @method _normalizeResponse\n      @param {Store} store\n      @param {Model} primaryModelClass\n      @param {Object} payload\n      @param {String|Number} id\n      @param {String} requestType\n      @param {Boolean} isSingle\n      @return {Object} JSON-API Document\n      @private\n    */\n    _normalizeResponse(store, primaryModelClass, payload, id, requestType, isSingle) {\n      var documentHash = {\n        data: null,\n        included: []\n      };\n      var meta = this.extractMeta(store, primaryModelClass, payload);\n\n      if (meta) {\n        (true && !(Ember.typeOf(meta) === 'object') && Ember.assert('The `meta` returned from `extractMeta` has to be an object, not \"' + Ember.typeOf(meta) + '\".', Ember.typeOf(meta) === 'object'));\n        documentHash.meta = meta;\n      }\n\n      if (isSingle) {\n        var {\n          data,\n          included\n        } = this.normalize(primaryModelClass, payload);\n        documentHash.data = data;\n\n        if (included) {\n          documentHash.included = included;\n        }\n      } else {\n        var ret = new Array(payload.length);\n\n        for (var i = 0, l = payload.length; i < l; i++) {\n          var item = payload[i];\n          var {\n            data: _data,\n            included: _included\n          } = this.normalize(primaryModelClass, item);\n\n          if (_included) {\n            documentHash.included.push(..._included);\n          }\n\n          ret[i] = _data;\n        }\n\n        documentHash.data = ret;\n      }\n\n      return documentHash;\n    },\n\n    /**\n      Normalizes a part of the JSON payload returned by\n      the server. You should override this method, munge the hash\n      and call super if you have generic normalization to do.\n       It takes the type of the record that is being normalized\n      (as a Model class), the property where the hash was\n      originally found, and the hash to normalize.\n       You can use this method, for example, to normalize underscored keys to camelized\n      or other general-purpose normalizations.\n       Example\n       ```app/serializers/application.js\n      import JSONSerializer from '@ember-data/serializer/json';\n      import { underscore } from '@ember/string';\n      import { get } from '@ember/object';\n       export default JSONSerializer.extend({\n        normalize(typeClass, hash) {\n          var fields = get(typeClass, 'fields');\n           fields.forEach(function(type, field) {\n            var payloadField = underscore(field);\n            if (field === payloadField) { return; }\n             hash[field] = hash[payloadField];\n            delete hash[payloadField];\n          });\n           return this._super.apply(this, arguments);\n        }\n      });\n      ```\n       @method normalize\n      @param {Model} typeClass\n      @param {Object} hash\n      @return {Object}\n    */\n    normalize(modelClass, resourceHash) {\n      var data = null;\n\n      if (resourceHash) {\n        this.normalizeUsingDeclaredMapping(modelClass, resourceHash);\n\n        if (Ember.typeOf(resourceHash.links) === 'object') {\n          this.normalizeUsingDeclaredMapping(modelClass, resourceHash.links);\n        }\n\n        data = {\n          id: this.extractId(modelClass, resourceHash),\n          type: modelClass.modelName,\n          attributes: this.extractAttributes(modelClass, resourceHash),\n          relationships: this.extractRelationships(modelClass, resourceHash)\n        };\n        this.applyTransforms(modelClass, data.attributes);\n      }\n\n      return {\n        data\n      };\n    },\n\n    /**\n      Returns the resource's ID.\n       @method extractId\n      @param {Object} modelClass\n      @param {Object} resourceHash\n      @return {String}\n    */\n    extractId(modelClass, resourceHash) {\n      var primaryKey = Ember.get(this, 'primaryKey');\n      var id = resourceHash[primaryKey];\n      return (0, _private.coerceId)(id);\n    },\n\n    /**\n      Returns the resource's attributes formatted as a JSON-API \"attributes object\".\n       http://jsonapi.org/format/#document-resource-object-attributes\n       @method extractAttributes\n      @param {Object} modelClass\n      @param {Object} resourceHash\n      @return {Object}\n    */\n    extractAttributes(modelClass, resourceHash) {\n      var attributeKey;\n      var attributes = {};\n      modelClass.eachAttribute(key => {\n        attributeKey = this.keyForAttribute(key, 'deserialize');\n\n        if (resourceHash[attributeKey] !== undefined) {\n          attributes[key] = resourceHash[attributeKey];\n        }\n      });\n      return attributes;\n    },\n\n    /**\n      Returns a relationship formatted as a JSON-API \"relationship object\".\n       http://jsonapi.org/format/#document-resource-object-relationships\n       @method extractRelationship\n      @param {Object} relationshipModelName\n      @param {Object} relationshipHash\n      @return {Object}\n    */\n    extractRelationship(relationshipModelName, relationshipHash) {\n      if (Ember.isNone(relationshipHash)) {\n        return null;\n      }\n      /*\n        When `relationshipHash` is an object it usually means that the relationship\n        is polymorphic. It could however also be embedded resources that the\n        EmbeddedRecordsMixin has be able to process.\n      */\n\n\n      if (Ember.typeOf(relationshipHash) === 'object') {\n        if (relationshipHash.id) {\n          relationshipHash.id = (0, _private.coerceId)(relationshipHash.id);\n        }\n\n        var modelClass = this.store.modelFor(relationshipModelName);\n\n        if (relationshipHash.type && !(0, _private2.modelHasAttributeOrRelationshipNamedType)(modelClass)) {\n          relationshipHash.type = this.modelNameFromPayloadKey(relationshipHash.type);\n        }\n\n        return relationshipHash;\n      }\n\n      return {\n        id: (0, _private.coerceId)(relationshipHash),\n        type: relationshipModelName\n      };\n    },\n\n    /**\n      Returns a polymorphic relationship formatted as a JSON-API \"relationship object\".\n       http://jsonapi.org/format/#document-resource-object-relationships\n       `relationshipOptions` is a hash which contains more information about the\n      polymorphic relationship which should be extracted:\n        - `resourceHash` complete hash of the resource the relationship should be\n          extracted from\n        - `relationshipKey` key under which the value for the relationship is\n          extracted from the resourceHash\n        - `relationshipMeta` meta information about the relationship\n       @method extractPolymorphicRelationship\n      @param {Object} relationshipModelName\n      @param {Object} relationshipHash\n      @param {Object} relationshipOptions\n      @return {Object}\n    */\n    extractPolymorphicRelationship(relationshipModelName, relationshipHash, relationshipOptions) {\n      return this.extractRelationship(relationshipModelName, relationshipHash);\n    },\n\n    /**\n      Returns the resource's relationships formatted as a JSON-API \"relationships object\".\n       http://jsonapi.org/format/#document-resource-object-relationships\n       @method extractRelationships\n      @param {Object} modelClass\n      @param {Object} resourceHash\n      @return {Object}\n    */\n    extractRelationships(modelClass, resourceHash) {\n      var relationships = {};\n      modelClass.eachRelationship((key, relationshipMeta) => {\n        var relationship = null;\n        var relationshipKey = this.keyForRelationship(key, relationshipMeta.kind, 'deserialize');\n\n        if (resourceHash[relationshipKey] !== undefined) {\n          var data = null;\n          var relationshipHash = resourceHash[relationshipKey];\n\n          if (relationshipMeta.kind === 'belongsTo') {\n            if (relationshipMeta.options.polymorphic) {\n              // extracting a polymorphic belongsTo may need more information\n              // than the type and the hash (which might only be an id) for the\n              // relationship, hence we pass the key, resource and\n              // relationshipMeta too\n              data = this.extractPolymorphicRelationship(relationshipMeta.type, relationshipHash, {\n                key,\n                resourceHash,\n                relationshipMeta\n              });\n            } else {\n              data = this.extractRelationship(relationshipMeta.type, relationshipHash);\n            }\n          } else if (relationshipMeta.kind === 'hasMany') {\n            if (!Ember.isNone(relationshipHash)) {\n              data = new Array(relationshipHash.length);\n\n              if (relationshipMeta.options.polymorphic) {\n                for (var i = 0, l = relationshipHash.length; i < l; i++) {\n                  var item = relationshipHash[i];\n                  data[i] = this.extractPolymorphicRelationship(relationshipMeta.type, item, {\n                    key,\n                    resourceHash,\n                    relationshipMeta\n                  });\n                }\n              } else {\n                for (var _i = 0, _l = relationshipHash.length; _i < _l; _i++) {\n                  var _item = relationshipHash[_i];\n                  data[_i] = this.extractRelationship(relationshipMeta.type, _item);\n                }\n              }\n            }\n          }\n\n          relationship = {\n            data\n          };\n        }\n\n        var linkKey = this.keyForLink(key, relationshipMeta.kind);\n\n        if (resourceHash.links && resourceHash.links[linkKey] !== undefined) {\n          var related = resourceHash.links[linkKey];\n          relationship = relationship || {};\n          relationship.links = {\n            related\n          };\n        }\n\n        if (relationship) {\n          relationships[key] = relationship;\n        }\n      });\n      return relationships;\n    },\n\n    /**\n      @method modelNameFromPayloadKey\n      @param {String} key\n      @return {String} the model's modelName\n    */\n    // TODO @deprecated Use modelNameFromPayloadType instead\n    modelNameFromPayloadKey(key) {\n      return (0, _store.normalizeModelName)(key);\n    },\n\n    /**\n      @method normalizeRelationships\n      @private\n    */\n    normalizeRelationships(typeClass, hash) {\n      var payloadKey;\n\n      if (this.keyForRelationship) {\n        typeClass.eachRelationship((key, relationship) => {\n          payloadKey = this.keyForRelationship(key, relationship.kind, 'deserialize');\n\n          if (key === payloadKey) {\n            return;\n          }\n\n          if (hash[payloadKey] === undefined) {\n            return;\n          }\n\n          hash[key] = hash[payloadKey];\n          delete hash[payloadKey];\n        });\n      }\n    },\n\n    /**\n      @method normalizeUsingDeclaredMapping\n      @private\n    */\n    normalizeUsingDeclaredMapping(modelClass, hash) {\n      var attrs = Ember.get(this, 'attrs');\n      var normalizedKey;\n      var payloadKey;\n\n      if (attrs) {\n        for (var key in attrs) {\n          normalizedKey = payloadKey = this._getMappedKey(key, modelClass);\n\n          if (hash[payloadKey] === undefined) {\n            continue;\n          }\n\n          if (Ember.get(modelClass, 'attributes').has(key)) {\n            normalizedKey = this.keyForAttribute(key);\n          }\n\n          if (Ember.get(modelClass, 'relationshipsByName').has(key)) {\n            normalizedKey = this.keyForRelationship(key);\n          }\n\n          if (payloadKey !== normalizedKey) {\n            hash[normalizedKey] = hash[payloadKey];\n            delete hash[payloadKey];\n          }\n        }\n      }\n    },\n\n    /**\n      Looks up the property key that was set by the custom `attr` mapping\n      passed to the serializer.\n       @method _getMappedKey\n      @private\n      @param {String} key\n      @return {String} key\n    */\n    _getMappedKey(key, modelClass) {\n      (true && Ember.warn('There is no attribute or relationship with the name `' + key + '` on `' + modelClass.modelName + '`. Check your serializers attrs hash.', Ember.get(modelClass, 'attributes').has(key) || Ember.get(modelClass, 'relationshipsByName').has(key), {\n        id: 'ds.serializer.no-mapped-attrs-key'\n      }));\n      var attrs = Ember.get(this, 'attrs');\n      var mappedKey;\n\n      if (attrs && attrs[key]) {\n        mappedKey = attrs[key]; //We need to account for both the { title: 'post_title' } and\n        //{ title: { key: 'post_title' }} forms\n\n        if (mappedKey.key) {\n          mappedKey = mappedKey.key;\n        }\n\n        if (typeof mappedKey === 'string') {\n          key = mappedKey;\n        }\n      }\n\n      return key;\n    },\n\n    /**\n      Check attrs.key.serialize property to inform if the `key`\n      can be serialized\n       @method _canSerialize\n      @private\n      @param {String} key\n      @return {boolean} true if the key can be serialized\n    */\n    _canSerialize(key) {\n      var attrs = Ember.get(this, 'attrs');\n      return !attrs || !attrs[key] || attrs[key].serialize !== false;\n    },\n\n    /**\n      When attrs.key.serialize is set to true then\n      it takes priority over the other checks and the related\n      attribute/relationship will be serialized\n       @method _mustSerialize\n      @private\n      @param {String} key\n      @return {boolean} true if the key must be serialized\n    */\n    _mustSerialize(key) {\n      var attrs = Ember.get(this, 'attrs');\n      return attrs && attrs[key] && attrs[key].serialize === true;\n    },\n\n    /**\n      Check if the given hasMany relationship should be serialized\n       By default only many-to-many and many-to-none relationships are serialized.\n      This could be configured per relationship by Serializer's `attrs` object.\n       @method shouldSerializeHasMany\n      @param {Snapshot} snapshot\n      @param {String} key\n      @param {String} relationshipType\n      @return {boolean} true if the hasMany relationship should be serialized\n    */\n    shouldSerializeHasMany(snapshot, key, relationship) {\n      var relationshipType = snapshot.type.determineRelationshipType(relationship, this.store);\n\n      if (this._mustSerialize(key)) {\n        return true;\n      }\n\n      return this._canSerialize(key) && (relationshipType === 'manyToNone' || relationshipType === 'manyToMany');\n    },\n\n    // SERIALIZE\n\n    /**\n      Called when a record is saved in order to convert the\n      record into JSON.\n       By default, it creates a JSON object with a key for\n      each attribute and belongsTo relationship.\n       For example, consider this model:\n       ```app/models/comment.js\n      import Model, { attr, belongsTo } from '@ember-data/model';\n       export default Model.extend({\n        title: attr(),\n        body: attr(),\n         author: belongsTo('user')\n      });\n      ```\n       The default serialization would create a JSON object like:\n       ```javascript\n      {\n        \"title\": \"Rails is unagi\",\n        \"body\": \"Rails? Omakase? O_O\",\n        \"author\": 12\n      }\n      ```\n       By default, attributes are passed through as-is, unless\n      you specified an attribute type (`attr('date')`). If\n      you specify a transform, the JavaScript value will be\n      serialized when inserted into the JSON hash.\n       By default, belongs-to relationships are converted into\n      IDs when inserted into the JSON hash.\n       ## IDs\n       `serialize` takes an options hash with a single option:\n      `includeId`. If this option is `true`, `serialize` will,\n      by default include the ID in the JSON object it builds.\n       The adapter passes in `includeId: true` when serializing\n      a record for `createRecord`, but not for `updateRecord`.\n       ## Customization\n       Your server may expect a different JSON format than the\n      built-in serialization format.\n       In that case, you can implement `serialize` yourself and\n      return a JSON hash of your choosing.\n       ```app/serializers/post.js\n      import JSONSerializer from '@ember-data/serializer/json';\n       export default JSONSerializer.extend({\n        serialize(snapshot, options) {\n          var json = {\n            POST_TTL: snapshot.attr('title'),\n            POST_BDY: snapshot.attr('body'),\n            POST_CMS: snapshot.hasMany('comments', { ids: true })\n          };\n           if (options.includeId) {\n            json.POST_ID_ = snapshot.id;\n          }\n           return json;\n        }\n      });\n      ```\n       ## Customizing an App-Wide Serializer\n       If you want to define a serializer for your entire\n      application, you'll probably want to use `eachAttribute`\n      and `eachRelationship` on the record.\n       ```app/serializers/application.js\n      import JSONSerializer from '@ember-data/serializer/json';\n      import { singularize } from 'ember-inflector';\n       export default JSONSerializer.extend({\n        serialize(snapshot, options) {\n          var json = {};\n           snapshot.eachAttribute(function(name) {\n            json[serverAttributeName(name)] = snapshot.attr(name);\n          });\n           snapshot.eachRelationship(function(name, relationship) {\n            if (relationship.kind === 'hasMany') {\n              json[serverHasManyName(name)] = snapshot.hasMany(name, { ids: true });\n            }\n          });\n           if (options.includeId) {\n            json.ID_ = snapshot.id;\n          }\n           return json;\n        }\n      });\n       function serverAttributeName(attribute) {\n        return attribute.underscore().toUpperCase();\n      }\n       function serverHasManyName(name) {\n        return serverAttributeName(singularize(name)) + \"_IDS\";\n      }\n      ```\n       This serializer will generate JSON that looks like this:\n       ```javascript\n      {\n        \"TITLE\": \"Rails is omakase\",\n        \"BODY\": \"Yep. Omakase.\",\n        \"COMMENT_IDS\": [ 1, 2, 3 ]\n      }\n      ```\n       ## Tweaking the Default JSON\n       If you just want to do some small tweaks on the default JSON,\n      you can call super first and make the tweaks on the returned\n      JSON.\n       ```app/serializers/post.js\n      import JSONSerializer from '@ember-data/serializer/json';\n       export default JSONSerializer.extend({\n        serialize(snapshot, options) {\n          var json = this._super(...arguments);\n           json.subject = json.title;\n          delete json.title;\n           return json;\n        }\n      });\n      ```\n       @method serialize\n      @param {Snapshot} snapshot\n      @param {Object} options\n      @return {Object} json\n    */\n    serialize(snapshot, options) {\n      var json = {};\n\n      if (options && options.includeId) {\n        var id = snapshot.id;\n\n        if (id) {\n          json[Ember.get(this, 'primaryKey')] = id;\n        }\n      }\n\n      snapshot.eachAttribute((key, attribute) => {\n        this.serializeAttribute(snapshot, json, key, attribute);\n      });\n      snapshot.eachRelationship((key, relationship) => {\n        if (relationship.kind === 'belongsTo') {\n          this.serializeBelongsTo(snapshot, json, relationship);\n        } else if (relationship.kind === 'hasMany') {\n          this.serializeHasMany(snapshot, json, relationship);\n        }\n      });\n      return json;\n    },\n\n    /**\n      You can use this method to customize how a serialized record is added to the complete\n      JSON hash to be sent to the server. By default the JSON Serializer does not namespace\n      the payload and just sends the raw serialized JSON object.\n      If your server expects namespaced keys, you should consider using the RESTSerializer.\n      Otherwise you can override this method to customize how the record is added to the hash.\n      The hash property should be modified by reference.\n       For example, your server may expect underscored root objects.\n       ```app/serializers/application.js\n      import RESTSerializer from '@ember-data/serializer/rest';\n      import { decamelize } from '@ember/string';\n       export default RESTSerializer.extend({\n        serializeIntoHash(data, type, snapshot, options) {\n          var root = decamelize(type.modelName);\n          data[root] = this.serialize(snapshot, options);\n        }\n      });\n      ```\n       @method serializeIntoHash\n      @param {Object} hash\n      @param {Model} typeClass\n      @param {Snapshot} snapshot\n      @param {Object} options\n    */\n    serializeIntoHash(hash, typeClass, snapshot, options) {\n      Ember.assign(hash, this.serialize(snapshot, options));\n    },\n\n    /**\n      `serializeAttribute` can be used to customize how `attr`\n      properties are serialized\n       For example if you wanted to ensure all your attributes were always\n      serialized as properties on an `attributes` object you could\n      write:\n       ```app/serializers/application.js\n      import JSONSerializer from '@ember-data/serializer/json';\n       export default JSONSerializer.extend({\n        serializeAttribute(snapshot, json, key, attributes) {\n          json.attributes = json.attributes || {};\n          this._super(snapshot, json.attributes, key, attributes);\n        }\n      });\n      ```\n       @method serializeAttribute\n      @param {Snapshot} snapshot\n      @param {Object} json\n      @param {String} key\n      @param {Object} attribute\n    */\n    serializeAttribute(snapshot, json, key, attribute) {\n      if (this._canSerialize(key)) {\n        var type = attribute.type;\n        var value = snapshot.attr(key);\n\n        if (type) {\n          var transform = this.transformFor(type);\n          value = transform.serialize(value, attribute.options);\n        } // if provided, use the mapping provided by `attrs` in\n        // the serializer\n\n\n        var payloadKey = this._getMappedKey(key, snapshot.type);\n\n        if (payloadKey === key && this.keyForAttribute) {\n          payloadKey = this.keyForAttribute(key, 'serialize');\n        }\n\n        json[payloadKey] = value;\n      }\n    },\n\n    /**\n      `serializeBelongsTo` can be used to customize how `belongsTo`\n      properties are serialized.\n       Example\n       ```app/serializers/post.js\n      import JSONSerializer from '@ember-data/serializer/json';\n      import { isNone } from '@ember/utils';\n       export default JSONSerializer.extend({\n        serializeBelongsTo(snapshot, json, relationship) {\n          var key = relationship.key;\n          var belongsTo = snapshot.belongsTo(key);\n           key = this.keyForRelationship ? this.keyForRelationship(key, \"belongsTo\", \"serialize\") : key;\n           json[key] = isNone(belongsTo) ? belongsTo : belongsTo.record.toJSON();\n        }\n      });\n      ```\n       @method serializeBelongsTo\n      @param {Snapshot} snapshot\n      @param {Object} json\n      @param {Object} relationship\n    */\n    serializeBelongsTo(snapshot, json, relationship) {\n      var key = relationship.key;\n\n      if (this._canSerialize(key)) {\n        var belongsToId = snapshot.belongsTo(key, {\n          id: true\n        }); // if provided, use the mapping provided by `attrs` in\n        // the serializer\n\n        var payloadKey = this._getMappedKey(key, snapshot.type);\n\n        if (payloadKey === key && this.keyForRelationship) {\n          payloadKey = this.keyForRelationship(key, 'belongsTo', 'serialize');\n        } //Need to check whether the id is there for new&async records\n\n\n        if (Ember.isNone(belongsToId)) {\n          json[payloadKey] = null;\n        } else {\n          json[payloadKey] = belongsToId;\n        }\n\n        if (relationship.options.polymorphic) {\n          this.serializePolymorphicType(snapshot, json, relationship);\n        }\n      }\n    },\n\n    /**\n     `serializeHasMany` can be used to customize how `hasMany`\n     properties are serialized.\n      Example\n      ```app/serializers/post.js\n     import JSONSerializer from '@ember-data/serializer/json';\n     import DS from 'ember-data';\n      export default JSONSerializer.extend({\n       serializeHasMany(snapshot, json, relationship) {\n         var key = relationship.key;\n         if (key === 'comments') {\n           return;\n         } else {\n           this._super(...arguments);\n         }\n       }\n     });\n     ```\n      @method serializeHasMany\n     @param {Snapshot} snapshot\n     @param {Object} json\n     @param {Object} relationship\n    */\n    serializeHasMany(snapshot, json, relationship) {\n      var key = relationship.key;\n\n      if (this.shouldSerializeHasMany(snapshot, key, relationship)) {\n        var hasMany = snapshot.hasMany(key, {\n          ids: true\n        });\n\n        if (hasMany !== undefined) {\n          // if provided, use the mapping provided by `attrs` in\n          // the serializer\n          var payloadKey = this._getMappedKey(key, snapshot.type);\n\n          if (payloadKey === key && this.keyForRelationship) {\n            payloadKey = this.keyForRelationship(key, 'hasMany', 'serialize');\n          }\n\n          json[payloadKey] = hasMany; // TODO support for polymorphic manyToNone and manyToMany relationships\n        }\n      }\n    },\n\n    /**\n      You can use this method to customize how polymorphic objects are\n      serialized. Objects are considered to be polymorphic if\n      `{ polymorphic: true }` is pass as the second argument to the\n      `belongsTo` function.\n       Example\n       ```app/serializers/comment.js\n      import JSONSerializer from '@ember-data/serializer/json';\n      import { isNone } from '@ember/utils';\n       export default JSONSerializer.extend({\n        serializePolymorphicType(snapshot, json, relationship) {\n          var key = relationship.key;\n          var belongsTo = snapshot.belongsTo(key);\n           key = this.keyForAttribute ? this.keyForAttribute(key, 'serialize') : key;\n           if (isNone(belongsTo)) {\n            json[key + '_type'] = null;\n          } else {\n            json[key + '_type'] = belongsTo.modelName;\n          }\n        }\n      });\n      ```\n       @method serializePolymorphicType\n      @param {Snapshot} snapshot\n      @param {Object} json\n      @param {Object} relationship\n    */\n    serializePolymorphicType() {},\n\n    /**\n      `extractMeta` is used to deserialize any meta information in the\n      adapter payload. By default Ember Data expects meta information to\n      be located on the `meta` property of the payload object.\n       Example\n       ```app/serializers/post.js\n      import JSONSerializer from '@ember-data/serializer/json';\n       export default JSONSerializer.extend({\n        extractMeta(store, typeClass, payload) {\n          if (payload && payload.hasOwnProperty('_pagination')) {\n            let meta = payload._pagination;\n            delete payload._pagination;\n            return meta;\n          }\n        }\n      });\n      ```\n       @method extractMeta\n      @param {Store} store\n      @param {Model} modelClass\n      @param {Object} payload\n    */\n    extractMeta(store, modelClass, payload) {\n      if (payload && payload['meta'] !== undefined) {\n        var meta = payload.meta;\n        delete payload.meta;\n        return meta;\n      }\n    },\n\n    /**\n      `extractErrors` is used to extract model errors when a call\n      to `Model#save` fails with an `InvalidError`. By default\n      Ember Data expects error information to be located on the `errors`\n      property of the payload object.\n       This serializer expects this `errors` object to be an Array similar\n      to the following, compliant with the https://jsonapi.org/format/#errors specification:\n       ```js\n      {\n        \"errors\": [\n          {\n            \"detail\": \"This username is already taken!\",\n            \"source\": {\n              \"pointer\": \"data/attributes/username\"\n            }\n          }, {\n            \"detail\": \"Doesn't look like a valid email.\",\n            \"source\": {\n              \"pointer\": \"data/attributes/email\"\n            }\n          }\n        ]\n      }\n      ```\n       The key `detail` provides a textual description of the problem.\n      Alternatively, the key `title` can be used for the same purpose.\n       The nested keys `source.pointer` detail which specific element\n      of the request data was invalid.\n       Note that JSON-API also allows for object-level errors to be placed\n      in an object with pointer `data`, signifying that the problem\n      cannot be traced to a specific attribute:\n       ```javascript\n      {\n        \"errors\": [\n          {\n            \"detail\": \"Some generic non property error message\",\n            \"source\": {\n              \"pointer\": \"data\"\n            }\n          }\n        ]\n      }\n      ```\n       When turn into a `Errors` object, you can read these errors\n      through the property `base`:\n       ```handlebars\n      {{#each model.errors.base as |error|}}\n        <div class=\"error\">\n          {{error.message}}\n        </div>\n      {{/each}}\n      ```\n       Example of alternative implementation, overriding the default\n      behavior to deal with a different format of errors:\n       ```app/serializers/post.js\n      import DS from 'ember-data';\n       export default JSONSerializer.extend({\n        extractErrors(store, typeClass, payload, id) {\n          if (payload && typeof payload === 'object' && payload._problems) {\n            payload = payload._problems;\n            this.normalizeErrors(typeClass, payload);\n          }\n          return payload;\n        }\n      });\n      ```\n       @method extractErrors\n      @param {Store} store\n      @param {Model} typeClass\n      @param {Object} payload\n      @param {(String|Number)} id\n      @return {Object} json The deserialized errors\n    */\n    extractErrors(store, typeClass, payload, id) {\n      if (payload && typeof payload === 'object' && payload.errors) {\n        payload = (0, _private.errorsArrayToHash)(payload.errors);\n        this.normalizeUsingDeclaredMapping(typeClass, payload);\n        typeClass.eachAttribute(name => {\n          var key = this.keyForAttribute(name, 'deserialize');\n\n          if (key !== name && payload[key] !== undefined) {\n            payload[name] = payload[key];\n            delete payload[key];\n          }\n        });\n        typeClass.eachRelationship(name => {\n          var key = this.keyForRelationship(name, 'deserialize');\n\n          if (key !== name && payload[key] !== undefined) {\n            payload[name] = payload[key];\n            delete payload[key];\n          }\n        });\n      }\n\n      return payload;\n    },\n\n    /**\n      `keyForAttribute` can be used to define rules for how to convert an\n      attribute name in your model to a key in your JSON.\n       Example\n       ```app/serializers/application.js\n      import JSONSerializer from '@ember-data/serializer/json';\n      import { underscore } from '@ember/string';\n       export default JSONSerializer.extend({\n        keyForAttribute(attr, method) {\n          return underscore(attr).toUpperCase();\n        }\n      });\n      ```\n       @method keyForAttribute\n      @param {String} key\n      @param {String} method\n      @return {String} normalized key\n    */\n    keyForAttribute(key, method) {\n      return key;\n    },\n\n    /**\n      `keyForRelationship` can be used to define a custom key when\n      serializing and deserializing relationship properties. By default\n      `JSONSerializer` does not provide an implementation of this method.\n       Example\n         ```app/serializers/post.js\n        import JSONSerializer from '@ember-data/serializer/json';\n        import { underscore } from '@ember/string';\n         export default JSONSerializer.extend({\n          keyForRelationship(key, relationship, method) {\n            return `rel_${underscore(key)}`;\n          }\n        });\n        ```\n       @method keyForRelationship\n      @param {String} key\n      @param {String} typeClass\n      @param {String} method\n      @return {String} normalized key\n    */\n    keyForRelationship(key, typeClass, method) {\n      return key;\n    },\n\n    /**\n     `keyForLink` can be used to define a custom key when deserializing link\n     properties.\n      @method keyForLink\n     @param {String} key\n     @param {String} kind `belongsTo` or `hasMany`\n     @return {String} normalized key\n    */\n    keyForLink(key, kind) {\n      return key;\n    },\n\n    // HELPERS\n\n    /**\n     @method transformFor\n     @private\n     @param {String} attributeType\n     @param {Boolean} skipAssertion\n     @return {Transform} transform\n    */\n    transformFor(attributeType, skipAssertion) {\n      var transform = Ember.getOwner(this).lookup('transform:' + attributeType);\n      (true && !(skipAssertion || !!transform) && Ember.assert(`Unable to find the transform for \\`attr('${attributeType}')\\``, skipAssertion || !!transform));\n      return transform;\n    }\n\n  });\n\n  var _default = JSONSerializer;\n  _exports.default = _default;\n});","define(\"@ember-data/serializer/rest\", [\"exports\", \"ember-inflector\", \"@ember-data/serializer/json\", \"@ember-data/store\", \"@ember-data/store/-private\", \"@ember-data/serializer/-private\"], function (_exports, _emberInflector, _json, _store, _private, _private2) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"EmbeddedRecordsMixin\", {\n    enumerable: true,\n    get: function () {\n      return _private2.EmbeddedRecordsMixin;\n    }\n  });\n  _exports.default = void 0;\n\n  /**\n    Normally, applications will use the `RESTSerializer` by implementing\n    the `normalize` method.\n  \n    This allows you to do whatever kind of munging you need and is\n    especially useful if your server is inconsistent and you need to\n    do munging differently for many different kinds of responses.\n  \n    See the `normalize` documentation for more information.\n  \n    ## Across the Board Normalization\n  \n    There are also a number of hooks that you might find useful to define\n    across-the-board rules for your payload. These rules will be useful\n    if your server is consistent, or if you're building an adapter for\n    an infrastructure service, like Firebase, and want to encode service\n    conventions.\n  \n    For example, if all of your keys are underscored and all-caps, but\n    otherwise consistent with the names you use in your models, you\n    can implement across-the-board rules for how to convert an attribute\n    name in your model to a key in your JSON.\n  \n    ```app/serializers/application.js\n    import RESTSerializer from '@ember-data/serializer/rest';\n    import { underscore } from '@ember/string';\n  \n    export default RESTSerializer.extend({\n      keyForAttribute(attr, method) {\n        return underscore(attr).toUpperCase();\n      }\n    });\n    ```\n  \n    You can also implement `keyForRelationship`, which takes the name\n    of the relationship as the first parameter, the kind of\n    relationship (`hasMany` or `belongsTo`) as the second parameter, and\n    the method (`serialize` or `deserialize`) as the third parameter.\n  \n    @class RESTSerializer\n    @extends JSONSerializer\n  */\n  var RESTSerializer = _json.default.extend({\n    /**\n     `keyForPolymorphicType` can be used to define a custom key when\n     serializing and deserializing a polymorphic type. By default, the\n     returned key is `${key}Type`.\n      Example\n       ```app/serializers/post.js\n      import RESTSerializer from '@ember-data/serializer/rest';\n       export default RESTSerializer.extend({\n        keyForPolymorphicType(key, relationship) {\n          var relationshipKey = this.keyForRelationship(key);\n           return 'type-' + relationshipKey;\n        }\n      });\n      ```\n      @method keyForPolymorphicType\n     @param {String} key\n     @param {String} typeClass\n     @param {String} method\n     @return {String} normalized key\n    */\n    keyForPolymorphicType(key, typeClass, method) {\n      var relationshipKey = this.keyForRelationship(key);\n      return `${relationshipKey}Type`;\n    },\n\n    /**\n      Normalizes a part of the JSON payload returned by\n      the server. You should override this method, munge the hash\n      and call super if you have generic normalization to do.\n       It takes the type of the record that is being normalized\n      (as a Model class), the property where the hash was\n      originally found, and the hash to normalize.\n       For example, if you have a payload that looks like this:\n       ```js\n      {\n        \"post\": {\n          \"id\": 1,\n          \"title\": \"Rails is omakase\",\n          \"comments\": [ 1, 2 ]\n        },\n        \"comments\": [{\n          \"id\": 1,\n          \"body\": \"FIRST\"\n        }, {\n          \"id\": 2,\n          \"body\": \"Rails is unagi\"\n        }]\n      }\n      ```\n       The `normalize` method will be called three times:\n       * With `App.Post`, `\"posts\"` and `{ id: 1, title: \"Rails is omakase\", ... }`\n      * With `App.Comment`, `\"comments\"` and `{ id: 1, body: \"FIRST\" }`\n      * With `App.Comment`, `\"comments\"` and `{ id: 2, body: \"Rails is unagi\" }`\n       You can use this method, for example, to normalize underscored keys to camelized\n      or other general-purpose normalizations. You will only need to implement\n      `normalize` and manipulate the payload as desired.\n       For example, if the `IDs` under `\"comments\"` are provided as `_id` instead of\n      `id`, you can specify how to normalize just the comments:\n       ```app/serializers/post.js\n      import RESTSerializer from '@ember-data/serializer/rest';\n       export default RESTSerializer.extend({\n        normalize(model, hash, prop) {\n          if (prop === 'comments') {\n            hash.id = hash._id;\n            delete hash._id;\n          }\n           return this._super(...arguments);\n        }\n      });\n      ```\n       On each call to the `normalize` method, the third parameter (`prop`) is always\n      one of the keys that were in the original payload or in the result of another\n      normalization as `normalizeResponse`.\n       @method normalize\n      @param {Model} modelClass\n      @param {Object} resourceHash\n      @param {String} prop\n      @return {Object}\n    */\n\n    /**\n      Normalizes an array of resource payloads and returns a JSON-API Document\n      with primary data and, if any, included data as `{ data, included }`.\n       @method _normalizeArray\n      @param {Store} store\n      @param {String} modelName\n      @param {Object} arrayHash\n      @param {String} prop\n      @return {Object}\n      @private\n    */\n    _normalizeArray(store, modelName, arrayHash, prop) {\n      var documentHash = {\n        data: [],\n        included: []\n      };\n      var modelClass = store.modelFor(modelName);\n      var serializer = store.serializerFor(modelName);\n      Ember.makeArray(arrayHash).forEach(hash => {\n        var {\n          data,\n          included\n        } = this._normalizePolymorphicRecord(store, hash, prop, modelClass, serializer);\n\n        documentHash.data.push(data);\n\n        if (included) {\n          documentHash.included.push(...included);\n        }\n      });\n      return documentHash;\n    },\n\n    _normalizePolymorphicRecord(store, hash, prop, primaryModelClass, primarySerializer) {\n      var serializer = primarySerializer;\n      var modelClass = primaryModelClass;\n      var primaryHasTypeAttribute = (0, _private2.modelHasAttributeOrRelationshipNamedType)(primaryModelClass);\n\n      if (!primaryHasTypeAttribute && hash.type) {\n        // Support polymorphic records in async relationships\n        var modelName = this.modelNameFromPayloadKey(hash.type);\n\n        if (store._hasModelFor(modelName)) {\n          serializer = store.serializerFor(modelName);\n          modelClass = store.modelFor(modelName);\n        }\n      }\n\n      return serializer.normalize(modelClass, hash, prop);\n    },\n\n    /*\n      @method _normalizeResponse\n      @param {Store} store\n      @param {Model} primaryModelClass\n      @param {Object} payload\n      @param {String|Number} id\n      @param {String} requestType\n      @param {Boolean} isSingle\n      @return {Object} JSON-API Document\n      @private\n    */\n    _normalizeResponse(store, primaryModelClass, payload, id, requestType, isSingle) {\n      var documentHash = {\n        data: null,\n        included: []\n      };\n      var meta = this.extractMeta(store, primaryModelClass, payload);\n\n      if (meta) {\n        (true && !(Ember.typeOf(meta) === 'object') && Ember.assert('The `meta` returned from `extractMeta` has to be an object, not \"' + Ember.typeOf(meta) + '\".', Ember.typeOf(meta) === 'object'));\n        documentHash.meta = meta;\n      }\n\n      var keys = Object.keys(payload);\n\n      for (var i = 0, length = keys.length; i < length; i++) {\n        var prop = keys[i];\n        var modelName = prop;\n        var forcedSecondary = false;\n        /*\n          If you want to provide sideloaded records of the same type that the\n          primary data you can do that by prefixing the key with `_`.\n           Example\n           ```\n          {\n            users: [\n              { id: 1, title: 'Tom', manager: 3 },\n              { id: 2, title: 'Yehuda', manager: 3 }\n            ],\n            _users: [\n              { id: 3, title: 'Tomster' }\n            ]\n          }\n          ```\n           This forces `_users` to be added to `included` instead of `data`.\n         */\n\n        if (prop.charAt(0) === '_') {\n          forcedSecondary = true;\n          modelName = prop.substr(1);\n        }\n\n        var typeName = this.modelNameFromPayloadKey(modelName);\n\n        if (!store._hasModelFor(typeName)) {\n          (true && Ember.warn(this.warnMessageNoModelForKey(modelName, typeName), false, {\n            id: 'ds.serializer.model-for-key-missing'\n          }));\n          continue;\n        }\n\n        var isPrimary = !forcedSecondary && this.isPrimaryType(store, typeName, primaryModelClass);\n        var value = payload[prop];\n\n        if (value === null) {\n          continue;\n        }\n\n        if (true\n        /* DEBUG */\n        ) {\n          var isQueryRecordAnArray = requestType === 'queryRecord' && isPrimary && Array.isArray(value);\n          var message = 'The adapter returned an array for the primary data of a `queryRecord` response. This is deprecated as `queryRecord` should return a single record.';\n          (true && !(!isQueryRecordAnArray) && Ember.deprecate(message, !isQueryRecordAnArray, {\n            id: 'ds.serializer.rest.queryRecord-array-response',\n            until: '3.0',\n            url: 'https://deprecations.emberjs.com/ember-data/v2.x/#toc_store-queryrecord-array-response-with-restserializer'\n          }));\n        }\n        /*\n          Support primary data as an object instead of an array.\n           Example\n           ```\n          {\n            user: { id: 1, title: 'Tom', manager: 3 }\n          }\n          ```\n         */\n\n\n        if (isPrimary && !Array.isArray(value)) {\n          var {\n            data: _data,\n            included: _included\n          } = this._normalizePolymorphicRecord(store, value, prop, primaryModelClass, this);\n\n          documentHash.data = _data;\n\n          if (_included) {\n            documentHash.included.push(..._included);\n          }\n\n          continue;\n        }\n\n        var {\n          data,\n          included\n        } = this._normalizeArray(store, typeName, value, prop);\n\n        if (included) {\n          documentHash.included.push(...included);\n        }\n\n        if (isSingle) {\n          data.forEach(resource => {\n            /*\n              Figures out if this is the primary record or not.\n               It's either:\n               1. The record with the same ID as the original request\n              2. If it's a newly created record without an ID, the first record\n                 in the array\n             */\n            var isUpdatedRecord = isPrimary && (0, _private.coerceId)(resource.id) === id;\n            var isFirstCreatedRecord = isPrimary && !id && !documentHash.data;\n\n            if (isFirstCreatedRecord || isUpdatedRecord) {\n              documentHash.data = resource;\n            } else {\n              documentHash.included.push(resource);\n            }\n          });\n        } else {\n          if (isPrimary) {\n            documentHash.data = data;\n          } else {\n            if (data) {\n              documentHash.included.push(...data);\n            }\n          }\n        }\n      }\n\n      return documentHash;\n    },\n\n    isPrimaryType(store, modelName, primaryModelClass) {\n      return (0, _store.normalizeModelName)(modelName) === primaryModelClass.modelName;\n    },\n\n    /**\n      This method allows you to push a payload containing top-level\n      collections of records organized per type.\n       ```js\n      {\n        \"posts\": [{\n          \"id\": \"1\",\n          \"title\": \"Rails is omakase\",\n          \"author\", \"1\",\n          \"comments\": [ \"1\" ]\n        }],\n        \"comments\": [{\n          \"id\": \"1\",\n          \"body\": \"FIRST\"\n        }],\n        \"users\": [{\n          \"id\": \"1\",\n          \"name\": \"@d2h\"\n        }]\n      }\n      ```\n       It will first normalize the payload, so you can use this to push\n      in data streaming in from your server structured the same way\n      that fetches and saves are structured.\n       @method pushPayload\n      @param {Store} store\n      @param {Object} payload\n    */\n    pushPayload(store, payload) {\n      var documentHash = {\n        data: [],\n        included: []\n      };\n\n      for (var prop in payload) {\n        var modelName = this.modelNameFromPayloadKey(prop);\n\n        if (!store._hasModelFor(modelName)) {\n          (true && Ember.warn(this.warnMessageNoModelForKey(prop, modelName), false, {\n            id: 'ds.serializer.model-for-key-missing'\n          }));\n          continue;\n        }\n\n        var type = store.modelFor(modelName);\n        var typeSerializer = store.serializerFor(type.modelName);\n        Ember.makeArray(payload[prop]).forEach(hash => {\n          var {\n            data,\n            included\n          } = typeSerializer.normalize(type, hash, prop);\n          documentHash.data.push(data);\n\n          if (included) {\n            documentHash.included.push(...included);\n          }\n        });\n      }\n\n      store.push(documentHash);\n    },\n\n    /**\n      This method is used to convert each JSON root key in the payload\n      into a modelName that it can use to look up the appropriate model for\n      that part of the payload.\n       For example, your server may send a model name that does not correspond with\n      the name of the model in your app. Let's take a look at an example model,\n      and an example payload:\n       ```app/models/post.js\n      import Model from '@ember-data/model';\n       export default Model.extend({\n      });\n      ```\n       ```javascript\n        {\n          \"blog/post\": {\n            \"id\": \"1\n          }\n        }\n      ```\n       Ember Data is going to normalize the payload's root key for the modelName. As a result,\n      it will try to look up the \"blog/post\" model. Since we don't have a model called \"blog/post\"\n      (or a file called app/models/blog/post.js in ember-cli), Ember Data will throw an error\n      because it cannot find the \"blog/post\" model.\n       Since we want to remove this namespace, we can define a serializer for the application that will\n      remove \"blog/\" from the payload key whenver it's encountered by Ember Data:\n       ```app/serializers/application.js\n      import RESTSerializer from '@ember-data/serializer/rest';\n       export default RESTSerializer.extend({\n        modelNameFromPayloadKey(payloadKey) {\n          if (payloadKey === 'blog/post') {\n            return this._super(payloadKey.replace('blog/', ''));\n          } else {\n           return this._super(payloadKey);\n          }\n        }\n      });\n      ```\n       After refreshing, Ember Data will appropriately look up the \"post\" model.\n       By default the modelName for a model is its\n      name in dasherized form. This means that a payload key like \"blogPost\" would be\n      normalized to \"blog-post\" when Ember Data looks up the model. Usually, Ember Data\n      can use the correct inflection to do this for you. Most of the time, you won't\n      need to override `modelNameFromPayloadKey` for this purpose.\n       @method modelNameFromPayloadKey\n      @param {String} key\n      @return {String} the model's modelName\n    */\n    modelNameFromPayloadKey(key) {\n      return (0, _emberInflector.singularize)((0, _store.normalizeModelName)(key));\n    },\n\n    // SERIALIZE\n\n    /**\n      Called when a record is saved in order to convert the\n      record into JSON.\n       By default, it creates a JSON object with a key for\n      each attribute and belongsTo relationship.\n       For example, consider this model:\n       ```app/models/comment.js\n      import Model, { attr, belongsTo } from '@ember-data/model';\n       export default Model.extend({\n        title: attr(),\n        body: attr(),\n         author: belongsTo('user')\n      });\n      ```\n       The default serialization would create a JSON object like:\n       ```js\n      {\n        \"title\": \"Rails is unagi\",\n        \"body\": \"Rails? Omakase? O_O\",\n        \"author\": 12\n      }\n      ```\n       By default, attributes are passed through as-is, unless\n      you specified an attribute type (`attr('date')`). If\n      you specify a transform, the JavaScript value will be\n      serialized when inserted into the JSON hash.\n       By default, belongs-to relationships are converted into\n      IDs when inserted into the JSON hash.\n       ## IDs\n       `serialize` takes an options hash with a single option:\n      `includeId`. If this option is `true`, `serialize` will,\n      by default include the ID in the JSON object it builds.\n       The adapter passes in `includeId: true` when serializing\n      a record for `createRecord`, but not for `updateRecord`.\n       ## Customization\n       Your server may expect a different JSON format than the\n      built-in serialization format.\n       In that case, you can implement `serialize` yourself and\n      return a JSON hash of your choosing.\n       ```app/serializers/post.js\n      import RESTSerializer from '@ember-data/serializer/rest';\n       export default RESTSerializer.extend({\n        serialize(snapshot, options) {\n          var json = {\n            POST_TTL: snapshot.attr('title'),\n            POST_BDY: snapshot.attr('body'),\n            POST_CMS: snapshot.hasMany('comments', { ids: true })\n          };\n           if (options.includeId) {\n            json.POST_ID_ = snapshot.id;\n          }\n           return json;\n        }\n      });\n      ```\n       ## Customizing an App-Wide Serializer\n       If you want to define a serializer for your entire\n      application, you'll probably want to use `eachAttribute`\n      and `eachRelationship` on the record.\n       ```app/serializers/application.js\n      import RESTSerializer from '@ember-data/serializer/rest';\n      import { pluralize } from 'ember-inflector';\n       export default RESTSerializer.extend({\n        serialize(snapshot, options) {\n          var json = {};\n           snapshot.eachAttribute(function(name) {\n            json[serverAttributeName(name)] = snapshot.attr(name);\n          });\n           snapshot.eachRelationship(function(name, relationship) {\n            if (relationship.kind === 'hasMany') {\n              json[serverHasManyName(name)] = snapshot.hasMany(name, { ids: true });\n            }\n          });\n           if (options.includeId) {\n            json.ID_ = snapshot.id;\n          }\n           return json;\n        }\n      });\n       function serverAttributeName(attribute) {\n        return attribute.underscore().toUpperCase();\n      }\n       function serverHasManyName(name) {\n        return serverAttributeName(singularize(name)) + \"_IDS\";\n      }\n      ```\n       This serializer will generate JSON that looks like this:\n       ```js\n      {\n        \"TITLE\": \"Rails is omakase\",\n        \"BODY\": \"Yep. Omakase.\",\n        \"COMMENT_IDS\": [ 1, 2, 3 ]\n      }\n      ```\n       ## Tweaking the Default JSON\n       If you just want to do some small tweaks on the default JSON,\n      you can call super first and make the tweaks on the returned\n      JSON.\n       ```app/serializers/post.js\n      import RESTSerializer from '@ember-data/serializer/rest';\n       export default RESTSerializer.extend({\n        serialize(snapshot, options) {\n          var json = this._super(snapshot, options);\n           json.subject = json.title;\n          delete json.title;\n           return json;\n        }\n      });\n      ```\n       @method serialize\n      @param {Snapshot} snapshot\n      @param {Object} options\n      @return {Object} json\n    */\n    serialize(snapshot, options) {\n      return this._super(...arguments);\n    },\n\n    /**\n      You can use this method to customize the root keys serialized into the JSON.\n      The hash property should be modified by reference (possibly using something like _.extend)\n      By default the REST Serializer sends the modelName of a model, which is a camelized\n      version of the name.\n       For example, your server may expect underscored root objects.\n       ```app/serializers/application.js\n      import RESTSerializer from '@ember-data/serializer/rest';\n      import { decamelize } from '@ember/string';\n       export default RESTSerializer.extend({\n        serializeIntoHash(data, type, record, options) {\n          var root = decamelize(type.modelName);\n          data[root] = this.serialize(record, options);\n        }\n      });\n      ```\n       @method serializeIntoHash\n      @param {Object} hash\n      @param {Model} typeClass\n      @param {Snapshot} snapshot\n      @param {Object} options\n    */\n    serializeIntoHash(hash, typeClass, snapshot, options) {\n      var normalizedRootKey = this.payloadKeyFromModelName(typeClass.modelName);\n      hash[normalizedRootKey] = this.serialize(snapshot, options);\n    },\n\n    /**\n      You can use `payloadKeyFromModelName` to override the root key for an outgoing\n      request. By default, the RESTSerializer returns a camelized version of the\n      model's name.\n       For a model called TacoParty, its `modelName` would be the string `taco-party`. The RESTSerializer\n      will send it to the server with `tacoParty` as the root key in the JSON payload:\n       ```js\n      {\n        \"tacoParty\": {\n          \"id\": \"1\",\n          \"location\": \"Matthew Beale's House\"\n        }\n      }\n      ```\n       For example, your server may expect dasherized root objects:\n       ```app/serializers/application.js\n      import RESTSerializer from '@ember-data/serializer/rest';\n      import { dasherize } from '@ember/string';\n       export default RESTSerializer.extend({\n        payloadKeyFromModelName(modelName) {\n          return dasherize(modelName);\n        }\n      });\n      ```\n       Given a `TacoParty` model, calling `save` on it would produce an outgoing\n      request like:\n       ```js\n      {\n        \"taco-party\": {\n          \"id\": \"1\",\n          \"location\": \"Matthew Beale's House\"\n        }\n      }\n      ```\n       @method payloadKeyFromModelName\n      @param {String} modelName\n      @return {String}\n    */\n    payloadKeyFromModelName(modelName) {\n      return Ember.String.camelize(modelName);\n    },\n\n    /**\n      You can use this method to customize how polymorphic objects are serialized.\n      By default the REST Serializer creates the key by appending `Type` to\n      the attribute and value from the model's camelcased model name.\n       @method serializePolymorphicType\n      @param {Snapshot} snapshot\n      @param {Object} json\n      @param {Object} relationship\n    */\n    serializePolymorphicType(snapshot, json, relationship) {\n      var key = relationship.key;\n      var typeKey = this.keyForPolymorphicType(key, relationship.type, 'serialize');\n      var belongsTo = snapshot.belongsTo(key);\n\n      if (Ember.isNone(belongsTo)) {\n        json[typeKey] = null;\n      } else {\n        json[typeKey] = Ember.String.camelize(belongsTo.modelName);\n      }\n    },\n\n    /**\n      You can use this method to customize how a polymorphic relationship should\n      be extracted.\n       @method extractPolymorphicRelationship\n      @param {Object} relationshipType\n      @param {Object} relationshipHash\n      @param {Object} relationshipOptions\n      @return {Object}\n     */\n    extractPolymorphicRelationship(relationshipType, relationshipHash, relationshipOptions) {\n      var {\n        key,\n        resourceHash,\n        relationshipMeta\n      } = relationshipOptions; // A polymorphic belongsTo relationship can be present in the payload\n      // either in the form where the `id` and the `type` are given:\n      //\n      //   {\n      //     message: { id: 1, type: 'post' }\n      //   }\n      //\n      // or by the `id` and a `<relationship>Type` attribute:\n      //\n      //   {\n      //     message: 1,\n      //     messageType: 'post'\n      //   }\n      //\n      // The next code checks if the latter case is present and returns the\n      // corresponding JSON-API representation. The former case is handled within\n      // the base class JSONSerializer.\n\n      var isPolymorphic = relationshipMeta.options.polymorphic;\n      var typeProperty = this.keyForPolymorphicType(key, relationshipType, 'deserialize');\n\n      if (isPolymorphic && resourceHash[typeProperty] !== undefined && typeof relationshipHash !== 'object') {\n        var type = this.modelNameFromPayloadKey(resourceHash[typeProperty]);\n        return {\n          id: relationshipHash,\n          type: type\n        };\n      }\n\n      return this._super(...arguments);\n    }\n\n  });\n\n  if (true\n  /* DEBUG */\n  ) {\n    RESTSerializer.reopen({\n      warnMessageNoModelForKey(prop, typeKey) {\n        return 'Encountered \"' + prop + '\" in payload, but no model was found for model name \"' + typeKey + '\" (resolved model name using ' + this.constructor.toString() + '.modelNameFromPayloadKey(\"' + prop + '\"))';\n      }\n\n    });\n  }\n\n  var _default = RESTSerializer;\n  _exports.default = _default;\n});","define(\"@ember-data/serializer/transform\", [\"exports\", \"@ember-data/serializer/-private\"], function (_exports, _private) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n    @module @ember-data/serializer\n  */\n  var _default = _private.Transform;\n  _exports.default = _default;\n});","define(\"@ember-data/store/-debug/index\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.assertPolymorphicType = void 0;\n\n  /*\n    Assert that `addedRecord` has a valid type so it can be added to the\n    relationship of the `record`.\n  \n    The assert basically checks if the `addedRecord` can be added to the\n    relationship (specified via `relationshipMeta`) of the `record`.\n  \n    This utility should only be used internally, as both record parameters must\n    be an InternalModel and the `relationshipMeta` needs to be the meta\n    information about the relationship, retrieved via\n    `record.relationshipFor(key)`.\n  \n    @method assertPolymorphicType\n    @param {InternalModel} internalModel\n    @param {RelationshipMeta} relationshipMeta retrieved via\n           `record.relationshipFor(key)`\n    @param {InternalModel} addedRecord record which\n           should be added/set for the relationship\n  */\n  var assertPolymorphicType;\n  _exports.assertPolymorphicType = assertPolymorphicType;\n\n  if (true\n  /* DEBUG */\n  ) {\n    var checkPolymorphic = function checkPolymorphic(modelClass, addedModelClass) {\n      if (modelClass.__isMixin) {\n        return modelClass.__mixin.detect(addedModelClass.PrototypeMixin) || // handle native class extension e.g. `class Post extends Model.extend(Commentable) {}`\n        modelClass.__mixin.detect(Object.getPrototypeOf(addedModelClass).PrototypeMixin);\n      }\n\n      return addedModelClass.prototype instanceof modelClass || modelClass.detect(addedModelClass);\n    };\n\n    _exports.assertPolymorphicType = assertPolymorphicType = function assertPolymorphicType(parentInternalModel, relationshipMeta, addedInternalModel, store) {\n      var addedModelName = addedInternalModel.modelName;\n      var parentModelName = parentInternalModel.modelName;\n      var key = relationshipMeta.key;\n      var relationshipModelName = relationshipMeta.type;\n      var relationshipClass = store.modelFor(relationshipModelName);\n      var addedClass = store.modelFor(addedInternalModel.modelName);\n      var assertionMessage = `The '${addedModelName}' type does not implement '${relationshipModelName}' and thus cannot be assigned to the '${key}' relationship in '${parentModelName}'. Make it a descendant of '${relationshipModelName}' or use a mixin of the same name.`;\n      (true && !(checkPolymorphic(relationshipClass, addedClass)) && Ember.assert(assertionMessage, checkPolymorphic(relationshipClass, addedClass)));\n    };\n  }\n});","define('@ember-data/store/-private', ['exports', 'require', '@ember-data/store/-debug', 'ember-inflector'], function (exports, require$1, Debug, emberInflector) { 'use strict';\n\n  require$1 = require$1 && Object.prototype.hasOwnProperty.call(require$1, 'default') ? require$1['default'] : require$1;\n\n  /**\n    @module @ember-data/store\n  */\n  // Used by the store to normalize IDs entering the store.  Despite the fact\n  // that developers may provide IDs as numbers (e.g., `store.findRecord('person', 1)`),\n  // it is important that internally we use strings, since IDs may be serialized\n  // and lose type information.  For example, Ember's router may put a record's\n  // ID into the URL, and if we later try to deserialize that URL and find the\n  // corresponding record, we will not know if it is a string or a number.\n  function coerceId(id) {\n    if (id === null || id === undefined || id === '') {\n      return null;\n    }\n\n    if (typeof id === 'string') {\n      return id;\n    }\n\n    if (typeof id === 'symbol') {\n      return id.toString();\n    }\n\n    return '' + id;\n  }\n\n  function ensureStringId(id) {\n    var normalized = null;\n\n    if (typeof id === 'string') {\n      normalized = id.length > 0 ? id : null;\n    } else if (typeof id === 'number' && !isNaN(id)) {\n      normalized = '' + id;\n    }\n\n    if (normalized === null) {\n      throw new Error(`Expected id to be a string or number, received ${String(id)}`);\n    }\n\n    return normalized;\n  }\n\n  /**\n    @module @ember-data/store\n  */\n  // All modelNames are dasherized internally. Changing this function may\n  // require changes to other normalization hooks (such as typeForRoot).\n\n  /**\n   This method normalizes a modelName into the format Ember Data uses\n   internally.\n\n    @function normalizeModelName\n    @for @ember-data/store\n    @param {String} modelName\n    @return {String} normalizedModelName\n  */\n  function normalizeModelName(modelName) {\n    return Ember.String.dasherize(modelName);\n  }\n\n  /**\n    @module @ember-data/store\n  */\n\n  /**\n   * This symbol provides a Symbol replacement for browsers that do not have it\n   * (eg. IE 11).\n   *\n   * The replacement is different from the native Symbol in some ways. It is a\n   * function that produces an output:\n   * - iterable;\n   * - that is a string, not a symbol.\n   *\n   * @internal\n   */\n  var symbol = typeof Symbol !== 'undefined' ? Symbol : key => `__${key}${Math.floor(Math.random() * Date.now())}__`;\n  function addSymbol(obj, symbol, value) {\n    if (typeof symbol === 'string') {\n      Object.defineProperty(obj, symbol, {\n        value,\n        configurable: false,\n        enumerable: false,\n        writable: false\n      });\n    } else {\n      // Typescript doesn't allow Symbol as an index type\n      obj[symbol] = value;\n    }\n  }\n\n  /**\n    @module @ember-data/store\n  */\n\n  var DEBUG_CLIENT_ORIGINATED = symbol('record-originated-on-client');\n  var DEBUG_IDENTIFIER_BUCKET = symbol('identifier-bucket');\n\n  function isNonEmptyString(str) {\n    return typeof str === 'string' && str.length > 0;\n  }\n\n  /**\n    @module @ember-data/store\n  */\n  var IDENTIFIERS = new WeakMap();\n  function isStableIdentifier(identifier) {\n    return IDENTIFIERS.has(identifier);\n  }\n  function markStableIdentifier(identifier) {\n    IDENTIFIERS.set(identifier, 'is-identifier');\n  }\n  function unmarkStableIdentifier(identifier) {\n    IDENTIFIERS.delete(identifier);\n  }\n\n  /**\n    @module @ember-data/store\n  */\n  // support IE11\n  var CRYPTO = (() => {\n    var hasWindow = typeof window !== 'undefined';\n    var isFastBoot = typeof FastBoot !== 'undefined';\n\n    if (isFastBoot) {\n      return {\n        getRandomValues(buffer) {\n          try {\n            return FastBoot.require('crypto').randomFillSync(buffer);\n          } catch (err) {\n            throw new Error('Using createRecord in Fastboot requires you to add the \"crypto\" package to \"fastbootDependencies\" in your package.json');\n          }\n        }\n\n      };\n    } else if (hasWindow && typeof window.crypto !== 'undefined') {\n      return window.crypto;\n    } else if (hasWindow && typeof window.msCrypto !== 'undefined' && typeof window.msCrypto.getRandomValues === 'function') {\n      return window.msCrypto;\n    } else {\n      throw new Error('ember-data: Cannot find a valid way to generate local identifiers');\n    }\n  })(); // we might be able to optimize this by requesting more bytes than we need at a time\n\n\n  function rng() {\n    // WHATWG crypto RNG - http://wiki.whatwg.org/wiki/Crypto\n    var rnds8 = new Uint8Array(16);\n    return CRYPTO.getRandomValues(rnds8);\n  }\n  /**\n   * Convert array of 16 byte values to UUID string format of the form:\n   * XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX\n   */\n\n\n  var byteToHex = [];\n\n  for (var i = 0; i < 256; ++i) {\n    byteToHex[i] = (i + 0x100).toString(16).substr(1);\n  }\n\n  function bytesToUuid(buf) {\n    var bth = byteToHex; // join used to fix memory issue caused by concatenation: https://bugs.chromium.org/p/v8/issues/detail?id=3175#c4\n\n    return [bth[buf[0]], bth[buf[1]], bth[buf[2]], bth[buf[3]], '-', bth[buf[4]], bth[buf[5]], '-', bth[buf[6]], bth[buf[7]], '-', bth[buf[8]], bth[buf[9]], '-', bth[buf[10]], bth[buf[11]], bth[buf[12]], bth[buf[13]], bth[buf[14]], bth[buf[15]]].join('');\n  }\n\n  function uuidv4() {\n    var rnds = rng(); // Per 4.4, set bits for version and `clock_seq_hi_and_reserved`\n\n    rnds[6] = rnds[6] & 0x0f | 0x40;\n    rnds[8] = rnds[8] & 0x3f | 0x80;\n    return bytesToUuid(rnds);\n  }\n\n  function freeze(obj) {\n    if (typeof Object.freeze === 'function') {\n      return Object.freeze(obj);\n    }\n\n    return obj;\n  }\n  /**\n    @module @ember-data/store\n  */\n\n\n  var configuredForgetMethod;\n  var configuredGenerationMethod;\n  var configuredResetMethod;\n  var configuredUpdateMethod;\n  function setIdentifierGenerationMethod(method) {\n    configuredGenerationMethod = method;\n  }\n  function setIdentifierUpdateMethod(method) {\n    configuredUpdateMethod = method;\n  }\n  function setIdentifierForgetMethod(method) {\n    configuredForgetMethod = method;\n  }\n  function setIdentifierResetMethod(method) {\n    configuredResetMethod = method;\n  }\n\n  function defaultGenerationMethod(data, bucket) {\n    if (isNonEmptyString(data.lid)) {\n      return data.lid;\n    }\n\n    var {\n      type,\n      id\n    } = data;\n\n    if (isNonEmptyString(id)) {\n      return `@ember-data:lid-${normalizeModelName(type)}-${id}`;\n    }\n\n    return uuidv4();\n  }\n\n  var IdentifierCaches = new WeakMap();\n  function identifierCacheFor(store) {\n    var cache = IdentifierCaches.get(store);\n\n    if (cache === undefined) {\n      cache = new IdentifierCache();\n      IdentifierCaches.set(store, cache);\n    }\n\n    return cache;\n  }\n\n  function defaultEmptyCallback(...args) {}\n\n  var DEBUG_MAP;\n\n  {\n    DEBUG_MAP = new WeakMap();\n  }\n\n  class IdentifierCache {\n    // Typescript still leaks private properties in the final\n    // compiled class, so we may want to move these from _underscore\n    // to a WeakMap to avoid leaking\n    // currently we leak this for test purposes\n    constructor() {\n      this._cache = {\n        lids: Object.create(null),\n        types: Object.create(null)\n      };\n      this._generate = void 0;\n      this._update = void 0;\n      this._forget = void 0;\n      this._reset = void 0;\n      this._merge = void 0;\n      // we cache the user configuredGenerationMethod at init because it must\n      // be configured prior and is not allowed to be changed\n      this._generate = configuredGenerationMethod || defaultGenerationMethod;\n      this._update = configuredUpdateMethod || defaultEmptyCallback;\n      this._forget = configuredForgetMethod || defaultEmptyCallback;\n      this._reset = configuredResetMethod || defaultEmptyCallback;\n      this._merge = defaultEmptyCallback;\n    }\n    /**\n     * hook to allow management of merge conflicts with identifiers.\n     *\n     * we allow late binding of this private internal merge so that `internalModelFactory`\n     * can insert itself here to handle elimination of duplicates\n     *\n     * @internal\n     */\n\n\n    __configureMerge(method) {\n      this._merge = method || defaultEmptyCallback;\n    }\n    /**\n     * @internal\n     */\n\n\n    _getRecordIdentifier(resource, shouldGenerate = false) {\n      // short circuit if we're already the stable version\n      if (isStableIdentifier(resource)) {\n        {\n          // TODO should we instead just treat this case as a new generation skipping the short circuit?\n          if (!(resource.lid in this._cache.lids) || this._cache.lids[resource.lid] !== resource) {\n            throw new Error(`The supplied identifier ${resource} does not belong to this store instance`);\n          }\n        }\n\n        return resource;\n      } // `type` must always be present\n\n\n      {\n        if (!isNonEmptyString(resource.type)) {\n          throw new Error('resource.type needs to be a string');\n        }\n      }\n\n      var type = normalizeModelName(resource.type);\n      var keyOptions = getTypeIndex(this._cache.types, type);\n      var identifier;\n      var lid = coerceId(resource.lid);\n      var id = coerceId(resource.id); // go straight for the stable RecordIdentifier key'd to `lid`\n\n      if (lid !== null) {\n        identifier = keyOptions.lid[lid];\n      } // we may have not seen this resource before\n      // but just in case we check our own secondary lookup (`id`)\n\n\n      if (identifier === undefined && id !== null) {\n        identifier = keyOptions.id[id];\n      }\n\n      if (identifier === undefined) {\n        // we have definitely not seen this resource before\n        // so we allow the user configured `GenerationMethod` to tell us\n        var newLid = this._generate(resource, 'record'); // we do this _even_ when `lid` is present because secondary lookups\n        // may need to be populated, but we enforce not giving us something\n        // different than expected\n\n\n        if (lid !== null && newLid !== lid) {\n          throw new Error(`You should not change the <lid> of a RecordIdentifier`);\n        } else if (lid === null) {\n          // allow configuration to tell us that we have\n          // seen this `lid` before. E.g. a secondary lookup\n          // connects this resource to a previously seen\n          // resource.\n          identifier = keyOptions.lid[newLid];\n        }\n\n        if (shouldGenerate === true) {\n          if (identifier === undefined) {\n            // if we still don't have an identifier, time to generate one\n            identifier = makeStableRecordIdentifier(id, type, newLid, 'record', false); // populate our unique table\n\n            {\n              // realistically if you hit this it means you changed `type` :/\n              // TODO consider how to handle type change assertions more gracefully\n              if (identifier.lid in this._cache.lids) {\n                throw new Error(`You should not change the <type> of a RecordIdentifier`);\n              }\n            }\n\n            this._cache.lids[identifier.lid] = identifier; // populate our primary lookup table\n            // TODO consider having the `lid` cache be\n            // one level up\n\n            keyOptions.lid[identifier.lid] = identifier; // TODO exists temporarily to support `peekAll`\n            // but likely to move\n\n            keyOptions._allIdentifiers.push(identifier);\n          } // populate our own secondary lookup table\n          // even for the \"successful\" secondary lookup\n          // by `_generate()`, since we missed the cache\n          // previously\n          // we use identifier.id instead of id here\n          // because they may not match and we prefer\n          // what we've set via resource data\n\n\n          if (identifier.id !== null) {\n            keyOptions.id[identifier.id] = identifier; // TODO allow filling out of `id` here\n            // for the `username` non-client created\n            // case.\n          }\n        }\n      }\n\n      return identifier;\n    }\n    /**\n     * allows us to peek without generating when needed\n     * useful for the \"create\" case when we need to see if\n     * we are accidentally overwritting something\n     *\n     * @internal\n     */\n\n\n    peekRecordIdentifier(resource) {\n      return this._getRecordIdentifier(resource, false);\n    }\n    /*\n      Returns the Identifier for the given Resource, creates one if it does not yet exist.\n       Specifically this means that we:\n       - validate the `id` `type` and `lid` combo against known identifiers\n      - return an object with an `lid` that is stable (repeated calls with the same\n        `id` + `type` or `lid` will return the same `lid` value)\n      - this referential stability of the object itself is guaranteed\n    */\n\n\n    getOrCreateRecordIdentifier(resource) {\n      return this._getRecordIdentifier(resource, true);\n    }\n    /*\n     Returns a new Identifier for the supplied data. Call this method to generate\n     an identifier when a new resource is being created local to the client and\n     potentially does not have an `id`.\n      Delegates generation to the user supplied `GenerateMethod` if one has been provided\n     with the signature `generateMethod({ type }, 'record')`.\n     */\n\n\n    createIdentifierForNewRecord(data) {\n      var newLid = this._generate(data, 'record');\n\n      var identifier = makeStableRecordIdentifier(data.id || null, data.type, newLid, 'record', true);\n      var keyOptions = getTypeIndex(this._cache.types, data.type); // populate our unique table\n\n      {\n        if (identifier.lid in this._cache.lids) {\n          throw new Error(`The lid generated for the new record is not unique as it matches an existing identifier`);\n        }\n      }\n\n      this._cache.lids[identifier.lid] = identifier; // populate the type+lid cache\n\n      keyOptions.lid[newLid] = identifier; // ensure a peekAll sees our new identifier too\n      // TODO move this outta here?\n\n      keyOptions._allIdentifiers.push(identifier);\n\n      return identifier;\n    }\n    /*\n     Provides the opportunity to update secondary lookup tables for existing identifiers\n     Called after an identifier created with `createIdentifierForNewRecord` has been\n     committed.\n      Assigned `id` to an `Identifier` if `id` has not previously existed; however,\n     attempting to change the `id` or calling update without providing an `id` when\n     one is missing will throw an error.\n       - sets `id` (if `id` was previously `null`)\n      - `lid` and `type` MUST NOT be altered post creation\n       If a merge occurs, it is possible the returned identifier does not match the originally\n      provided identifier. In this case the abandoned identifier will go through the usual\n      `forgetRecordIdentifier` codepaths.\n    */\n\n\n    updateRecordIdentifier(identifierObject, data) {\n      var identifier = this.getOrCreateRecordIdentifier(identifierObject);\n      var id = identifier.id;\n      var newId = coerceId(data.id);\n      var keyOptions = getTypeIndex(this._cache.types, identifier.type);\n      var existingIdentifier = detectMerge(keyOptions, identifier, data, newId, this._cache.lids);\n\n      if (existingIdentifier) {\n        identifier = this._mergeRecordIdentifiers(keyOptions, identifier, existingIdentifier, data, newId);\n      }\n\n      id = identifier.id;\n      performRecordIdentifierUpdate(identifier, data, this._update);\n      newId = identifier.id; // add to our own secondary lookup table\n\n      if (id !== newId && newId !== null) {\n        var _keyOptions = getTypeIndex(this._cache.types, identifier.type);\n\n        _keyOptions.id[newId] = identifier;\n\n        if (id !== null) {\n          delete _keyOptions.id[id];\n        }\n      }\n\n      return identifier;\n    }\n\n    _mergeRecordIdentifiers(keyOptions, identifier, existingIdentifier, data, newId) {\n      // delegate determining which identifier to keep to the configured MergeMethod\n      var kept = this._merge(identifier, existingIdentifier, data);\n\n      var abandoned = kept === identifier ? existingIdentifier : identifier; // cleanup the identifier we no longer need\n\n      this.forgetRecordIdentifier(abandoned); // ensure a secondary cache entry for this id for the identifier we do keep\n\n      keyOptions.id[newId] = kept; // ensure a secondary cache entry for this id for the abandoned identifier's type we do keep\n\n      var baseKeyOptions = getTypeIndex(this._cache.types, existingIdentifier.type);\n      baseKeyOptions.id[newId] = kept; // make sure that the `lid` on the data we are processing matches the lid we kept\n\n      data.lid = kept.lid;\n      return kept;\n    }\n    /*\n     Provides the opportunity to eliminate an identifier from secondary lookup tables\n     as well as eliminates it from ember-data's own lookup tables and book keeping.\n      Useful when a record has been deleted and the deletion has been persisted and\n     we do not care about the record anymore. Especially useful when an `id` of a\n     deleted record might be reused later for a new record.\n    */\n\n\n    forgetRecordIdentifier(identifierObject) {\n      var identifier = this.getOrCreateRecordIdentifier(identifierObject);\n      var keyOptions = getTypeIndex(this._cache.types, identifier.type);\n\n      if (identifier.id !== null) {\n        delete keyOptions.id[identifier.id];\n      }\n\n      delete this._cache.lids[identifier.lid];\n      delete keyOptions.lid[identifier.lid];\n\n      var index = keyOptions._allIdentifiers.indexOf(identifier);\n\n      keyOptions._allIdentifiers.splice(index, 1);\n\n      unmarkStableIdentifier(identifierObject);\n\n      this._forget(identifier, 'record');\n    }\n\n    destroy() {\n      this._reset();\n    }\n\n  }\n\n  function getTypeIndex(typeMap, type) {\n    var typeIndex = typeMap[type];\n\n    if (typeIndex === undefined) {\n      typeIndex = {\n        lid: Object.create(null),\n        id: Object.create(null),\n        _allIdentifiers: []\n      };\n      typeMap[type] = typeIndex;\n    }\n\n    return typeIndex;\n  }\n\n  function makeStableRecordIdentifier(id, type, lid, bucket, clientOriginated = false) {\n    var recordIdentifier = {\n      lid,\n      id,\n      type\n    };\n    markStableIdentifier(recordIdentifier);\n\n    {\n      // we enforce immutability in dev\n      //  but preserve our ability to do controlled updates to the reference\n      var wrapper = {\n        get lid() {\n          return recordIdentifier.lid;\n        },\n\n        get id() {\n          return recordIdentifier.id;\n        },\n\n        get type() {\n          return recordIdentifier.type;\n        },\n\n        toString() {\n          var {\n            type,\n            id,\n            lid\n          } = recordIdentifier;\n          return `${clientOriginated ? '[CLIENT_ORIGINATED] ' : ''}${type}:${id} (${lid})`;\n        }\n\n      };\n      addSymbol(wrapper, DEBUG_CLIENT_ORIGINATED, clientOriginated);\n      addSymbol(wrapper, DEBUG_IDENTIFIER_BUCKET, bucket);\n      wrapper = freeze(wrapper);\n      markStableIdentifier(wrapper);\n      DEBUG_MAP.set(wrapper, recordIdentifier);\n      return wrapper;\n    }\n  }\n\n  function performRecordIdentifierUpdate(identifier, data, updateFn) {\n    var {\n      id,\n      lid\n    } = data;\n    var type = normalizeModelName(data.type);\n\n    {\n      // get the mutable instance behind our proxy wrapper\n      var wrapper = identifier;\n      identifier = DEBUG_MAP.get(wrapper);\n\n      if (lid !== undefined) {\n        var newLid = coerceId(lid);\n\n        if (newLid !== identifier.lid) {\n          throw new Error(`The 'lid' for a RecordIdentifier cannot be updated once it has been created. Attempted to set lid for '${wrapper}' to '${lid}'.`);\n        }\n      }\n\n      if (id !== undefined) {\n        var newId = coerceId(id);\n\n        if (identifier.id !== null && identifier.id !== newId) {\n          // here we warn and ignore, as this may be a mistake, but we allow the user\n          // to have multiple cache-keys pointing at a single lid so we cannot error\n          ( Ember.warn(`The 'id' for a RecordIdentifier should not be updated once it has been set. Attempted to set id for '${wrapper}' to '${newId}'.`, false, {\n            id: 'ember-data:multiple-ids-for-identifier'\n          }));\n        }\n      } // TODO consider just ignoring here to allow flexible polymorphic support\n\n\n      if (type !== identifier.type) {\n        throw new Error(`The 'type' for a RecordIdentifier cannot be updated once it has been set. Attempted to set type for '${wrapper}' to '${type}'.`);\n      }\n\n      updateFn(wrapper, data, 'record');\n    } // upgrade the ID, this is a \"one time only\" ability\n    // for the multiple-cache-key scenario we \"could\"\n    // use a heuristic to guess the best id for display\n    // (usually when `data.id` is available and `data.attributes` is not)\n\n\n    if (id !== undefined) {\n      identifier.id = coerceId(id);\n    }\n  }\n\n  function detectMerge(keyOptions, identifier, data, newId, lids) {\n    var {\n      id,\n      type,\n      lid\n    } = identifier;\n\n    if (id !== null && id !== newId && newId !== null) {\n      var existingIdentifier = keyOptions.id[newId];\n      return existingIdentifier !== undefined ? existingIdentifier : false;\n    } else {\n      var newType = normalizeModelName(data.type);\n\n      if (id !== null && id === newId && newType === type && data.lid && data.lid !== lid) {\n        var _existingIdentifier = lids[data.lid];\n        return _existingIdentifier !== undefined ? _existingIdentifier : false;\n      }\n    }\n\n    return false;\n  }\n\n  function constructResource(type, id, lid) {\n    var trueId = coerceId(id);\n\n    if (!isNonEmptyString(trueId)) {\n      if (isNonEmptyString(lid)) {\n        return {\n          type,\n          id: trueId,\n          lid\n        };\n      }\n\n      throw new Error(`Expected either id or lid to be a valid string`);\n    }\n\n    if (isNonEmptyString(lid)) {\n      return {\n        type,\n        id: trueId,\n        lid\n      };\n    }\n\n    return {\n      type,\n      id: trueId\n    };\n  }\n\n  /**\n    @module @ember-data/store\n  */\n\n  /**\n    A `PromiseArray` is an object that acts like both an `Ember.Array`\n    and a promise. When the promise is resolved the resulting value\n    will be set to the `PromiseArray`'s `content` property. This makes\n    it easy to create data bindings with the `PromiseArray` that will be\n    updated when the promise resolves.\n\n    For more information see the [Ember.PromiseProxyMixin\n    documentation](/api/classes/Ember.PromiseProxyMixin.html).\n\n    Example\n\n    ```javascript\n    let promiseArray = PromiseArray.create({\n      promise: $.getJSON('/some/remote/data.json')\n    });\n\n    promiseArray.get('length'); // 0\n\n    promiseArray.then(function() {\n      promiseArray.get('length'); // 100\n    });\n    ```\n\n    @class PromiseArray\n    @extends Ember.ArrayProxy\n    @uses Ember.PromiseProxyMixin\n  */\n  var PromiseArray = Ember.ArrayProxy.extend(Ember.PromiseProxyMixin, {\n    meta: Ember.computed.reads('content.meta')\n  });\n  /**\n    A `PromiseObject` is an object that acts like both an `EmberObject`\n    and a promise. When the promise is resolved, then the resulting value\n    will be set to the `PromiseObject`'s `content` property. This makes\n    it easy to create data bindings with the `PromiseObject` that will\n    be updated when the promise resolves.\n\n    For more information see the [Ember.PromiseProxyMixin\n    documentation](/api/classes/Ember.PromiseProxyMixin.html).\n\n    Example\n\n    ```javascript\n    let promiseObject = PromiseObject.create({\n      promise: $.getJSON('/some/remote/data.json')\n    });\n\n    promiseObject.get('name'); // null\n\n    promiseObject.then(function() {\n      promiseObject.get('name'); // 'Tomster'\n    });\n    ```\n\n    @class PromiseObject\n    @extends Ember.ObjectProxy\n    @uses Ember.PromiseProxyMixin\n  */\n\n  var PromiseObject = Ember.ObjectProxy.extend(Ember.PromiseProxyMixin);\n  function promiseObject(promise, label) {\n    return PromiseObject.create({\n      promise: Ember.RSVP.Promise.resolve(promise, label)\n    });\n  }\n  function promiseArray(promise, label) {\n    return PromiseArray.create({\n      promise: Ember.RSVP.Promise.resolve(promise, label)\n    });\n  }\n\n  /**\n    @module @ember-data/store\n  */\n\n  /**\n   * Get the materialized model from the internalModel/promise\n   * that returns an internal model and return it in a promiseObject.\n   *\n   * Useful for returning from find methods\n   *\n   * @internal\n   */\n  function promiseRecord(internalModelPromise, label) {\n    var toReturn = internalModelPromise.then(internalModel => internalModel.getRecord());\n    return promiseObject(toReturn, label);\n  }\n\n  var backburner = new Ember._Backburner(['normalizeRelationships', 'syncRelationships', 'finished']);\n\n  {\n    Ember.Test.registerWaiter(() => {\n      return !backburner.currentInstance && !backburner.hasTimers();\n    });\n  }\n\n  /**\n    @module @ember-data/store\n  */\n  var SOURCE_POINTER_REGEXP = /^\\/?data\\/(attributes|relationships)\\/(.*)/;\n  var SOURCE_POINTER_PRIMARY_REGEXP = /^\\/?data/;\n  var PRIMARY_ATTRIBUTE_KEY = 'base';\n  /**\n    Convert an hash of errors into an array with errors in JSON-API format.\n     ```javascript\n    import DS from 'ember-data';\n     const { errorsHashToArray } = DS;\n     let errors = {\n      base: 'Invalid attributes on saving this record',\n      name: 'Must be present',\n      age: ['Must be present', 'Must be a number']\n    };\n     let errorsArray = errorsHashToArray(errors);\n    // [\n    //   {\n    //     title: \"Invalid Document\",\n    //     detail: \"Invalid attributes on saving this record\",\n    //     source: { pointer: \"/data\" }\n    //   },\n    //   {\n    //     title: \"Invalid Attribute\",\n    //     detail: \"Must be present\",\n    //     source: { pointer: \"/data/attributes/name\" }\n    //   },\n    //   {\n    //     title: \"Invalid Attribute\",\n    //     detail: \"Must be present\",\n    //     source: { pointer: \"/data/attributes/age\" }\n    //   },\n    //   {\n    //     title: \"Invalid Attribute\",\n    //     detail: \"Must be a number\",\n    //     source: { pointer: \"/data/attributes/age\" }\n    //   }\n    // ]\n    ```\n    @method errorsHashToArray\n    @public\n    @param {Object} errors hash with errors as properties\n    @return {Array} array of errors in JSON-API format\n  */\n\n  function errorsHashToArray(errors) {\n    var out = [];\n\n    if (Ember.isPresent(errors)) {\n      Object.keys(errors).forEach(key => {\n        var messages = Ember.makeArray(errors[key]);\n\n        for (var i = 0; i < messages.length; i++) {\n          var title = 'Invalid Attribute';\n          var pointer = `/data/attributes/${key}`;\n\n          if (key === PRIMARY_ATTRIBUTE_KEY) {\n            title = 'Invalid Document';\n            pointer = `/data`;\n          }\n\n          out.push({\n            title: title,\n            detail: messages[i],\n            source: {\n              pointer: pointer\n            }\n          });\n        }\n      });\n    }\n\n    return out;\n  }\n  /**\n    Convert an array of errors in JSON-API format into an object.\n\n    ```javascript\n    import DS from 'ember-data';\n\n    const { errorsArrayToHash } = DS;\n\n    let errorsArray = [\n      {\n        title: 'Invalid Attribute',\n        detail: 'Must be present',\n        source: { pointer: '/data/attributes/name' }\n      },\n      {\n        title: 'Invalid Attribute',\n        detail: 'Must be present',\n        source: { pointer: '/data/attributes/age' }\n      },\n      {\n        title: 'Invalid Attribute',\n        detail: 'Must be a number',\n        source: { pointer: '/data/attributes/age' }\n      }\n    ];\n\n    let errors = errorsArrayToHash(errorsArray);\n    // {\n    //   \"name\": [\"Must be present\"],\n    //   \"age\":  [\"Must be present\", \"must be a number\"]\n    // }\n    ```\n\n    @method errorsArrayToHash\n    @public\n    @param {Array} errors array of errors in JSON-API format\n    @return {Object}\n  */\n\n  function errorsArrayToHash(errors) {\n    var out = {};\n\n    if (Ember.isPresent(errors)) {\n      errors.forEach(error => {\n        if (error.source && error.source.pointer) {\n          var key = error.source.pointer.match(SOURCE_POINTER_REGEXP);\n\n          if (key) {\n            key = key[2];\n          } else if (error.source.pointer.search(SOURCE_POINTER_PRIMARY_REGEXP) !== -1) {\n            key = PRIMARY_ATTRIBUTE_KEY;\n          }\n\n          if (key) {\n            out[key] = out[key] || [];\n            out[key].push(error.detail || error.title);\n          }\n        }\n      });\n    }\n\n    return out;\n  }\n\n  var RequestStateEnum;\n\n  (function (RequestStateEnum) {\n    RequestStateEnum[\"pending\"] = \"pending\";\n    RequestStateEnum[\"fulfilled\"] = \"fulfilled\";\n    RequestStateEnum[\"rejected\"] = \"rejected\";\n  })(RequestStateEnum || (RequestStateEnum = {}));\n\n  /*\n   * Returns the RecordData instance associated with a given\n   * Model or InternalModel.\n   *\n   * Intentionally \"loose\" to allow anything with an _internalModel\n   * property until InternalModel is eliminated.\n   *\n   * Intentionally not typed to `InternalModel` due to circular dependency\n   *  which that creates.\n   *\n   * Overtime, this should shift to a \"weakmap\" based lookup in the\n   *  \"Ember.getOwner(obj)\" style.\n   */\n  function recordDataFor(instance) {\n    var internalModel = instance._internalModel || instance.internalModel || instance;\n    return internalModel._recordData || null;\n  }\n\n  /**\n    @module @ember-data/store\n  */\n\n  function relationshipsFor(instance) {\n    var i = instance; // TODO this cast is not safe but it is the assumption of the current\n    // state of the code. We need to update this class to handle CUSTOM_MODEL_CLASS\n    // requirements.\n\n    var recordData = i._internalModel._recordData;\n    return recordData._relationships;\n  }\n\n  function relationshipStateFor(instance, propertyName) {\n    return relationshipsFor(instance).get(propertyName);\n  }\n\n  /**\n    @class Snapshot\n    @private\n    @constructor\n    @param {Model} internalModel The model to create a snapshot from\n  */\n  class Snapshot {\n    constructor(options, identifier, _store) {\n      this._store = _store;\n      this.__attributes = null;\n      this._belongsToRelationships = Object.create(null);\n      this._belongsToIds = Object.create(null);\n      this._hasManyRelationships = Object.create(null);\n      this._hasManyIds = Object.create(null);\n      this._internalModel = void 0;\n      this._changedAttributes = void 0;\n      this.identifier = void 0;\n      this.modelName = void 0;\n      this.id = void 0;\n      this.include = void 0;\n      this.adapterOptions = void 0;\n\n      var internalModel = this._internalModel = _store._internalModelForResource(identifier);\n\n      this.modelName = identifier.type;\n      /*\n        If the internalModel does not yet have a record, then we are\n        likely a snapshot being provided to a find request, so we\n        populate __attributes lazily. Else, to preserve the \"moment\n        in time\" in which a snapshot is created, we greedily grab\n        the values.\n       */\n\n\n      if (internalModel.hasRecord) {\n        this._attributes;\n      }\n      /**\n       The id of the snapshot's underlying record\n        Example\n        ```javascript\n       // store.push('post', { id: 1, author: 'Tomster', title: 'Ember.js rocks' });\n       postSnapshot.id; // => '1'\n       ```\n        @property id\n       @type {String}\n       */\n\n\n      this.id = identifier.id;\n      /**\n       A hash of adapter options\n       @property adapterOptions\n       @type {Object}\n       */\n\n      this.adapterOptions = options.adapterOptions;\n      this.include = options.include;\n      /**\n       The name of the type of the underlying record for this snapshot, as a string.\n        @property modelName\n       @type {String}\n       */\n\n      this.modelName = internalModel.modelName;\n\n      if (internalModel.hasRecord) {\n        this._changedAttributes = recordDataFor(internalModel).changedAttributes();\n      }\n    }\n    /**\n     The underlying record for this snapshot. Can be used to access methods and\n     properties defined on the record.\n      Example\n      ```javascript\n     let json = snapshot.record.toJSON();\n     ```\n      @property record\n     @type {Model}\n     */\n\n\n    get record() {\n      return this._internalModel.getRecord();\n    }\n\n    get _attributes() {\n      if (this.__attributes !== null) {\n        return this.__attributes;\n      }\n\n      var record = this.record;\n      var attributes = this.__attributes = Object.create(null);\n      var attrs;\n\n      {\n        attrs = Object.keys(this._store._attributesDefinitionFor(this.modelName));\n      }\n\n      {\n        // When CUSTOM_MODEL_CLASS is false `record` must be DSModel\n        record.eachAttribute(keyName => attributes[keyName] = Ember.get(record, keyName));\n      }\n\n      return attributes;\n    }\n    /**\n     The type of the underlying record for this snapshot, as a Model.\n      @property type\n     @type {Model}\n     */\n\n\n    get type() {\n      return this._internalModel.modelClass;\n    }\n\n    get isNew() {\n      {\n        throw new Error('isNew is only available when custom model class ff is on');\n      }\n    }\n    /**\n     Returns the value of an attribute.\n      Example\n      ```javascript\n     // store.push('post', { id: 1, author: 'Tomster', title: 'Ember.js rocks' });\n     postSnapshot.attr('author'); // => 'Tomster'\n     postSnapshot.attr('title'); // => 'Ember.js rocks'\n     ```\n      Note: Values are loaded eagerly and cached when the snapshot is created.\n      @method attr\n     @param {String} keyName\n     @return {Object} The attribute value or undefined\n     */\n\n\n    attr(keyName) {\n      if (keyName in this._attributes) {\n        return this._attributes[keyName];\n      }\n\n      ( Ember.assert(`Model '${this.identifier}' has no attribute named '${keyName}' defined.`, false));\n    }\n    /**\n     Returns all attributes and their corresponding values.\n      Example\n      ```javascript\n     // store.push('post', { id: 1, author: 'Tomster', title: 'Ember.js rocks' });\n     postSnapshot.attributes(); // => { author: 'Tomster', title: 'Ember.js rocks' }\n     ```\n      @method attributes\n     @return {Object} All attributes of the current snapshot\n     */\n\n\n    attributes() {\n      return Ember.assign({}, this._attributes);\n    }\n    /**\n     Returns all changed attributes and their old and new values.\n      Example\n      ```javascript\n     // store.push('post', { id: 1, author: 'Tomster', title: 'Ember.js rocks' });\n     postModel.set('title', 'Ember.js rocks!');\n     postSnapshot.changedAttributes(); // => { title: ['Ember.js rocks', 'Ember.js rocks!'] }\n     ```\n      @method changedAttributes\n     @return {Object} All changed attributes of the current snapshot\n     */\n\n\n    changedAttributes() {\n      var changedAttributes = Object.create(null);\n\n      if (!this._changedAttributes) {\n        return changedAttributes;\n      }\n\n      var changedAttributeKeys = Object.keys(this._changedAttributes);\n\n      for (var i = 0, length = changedAttributeKeys.length; i < length; i++) {\n        var _key = changedAttributeKeys[i];\n        changedAttributes[_key] = this._changedAttributes[_key].slice();\n      }\n\n      return changedAttributes;\n    }\n    /**\n     Returns the current value of a belongsTo relationship.\n      `belongsTo` takes an optional hash of options as a second parameter,\n     currently supported options are:\n      - `id`: set to `true` if you only want the ID of the related record to be\n     returned.\n      Example\n      ```javascript\n     // store.push('post', { id: 1, title: 'Hello World' });\n     // store.createRecord('comment', { body: 'Lorem ipsum', post: post });\n     commentSnapshot.belongsTo('post'); // => Snapshot\n     commentSnapshot.belongsTo('post', { id: true }); // => '1'\n      // store.push('comment', { id: 1, body: 'Lorem ipsum' });\n     commentSnapshot.belongsTo('post'); // => undefined\n     ```\n      Calling `belongsTo` will return a new Snapshot as long as there's any known\n     data for the relationship available, such as an ID. If the relationship is\n     known but unset, `belongsTo` will return `null`. If the contents of the\n     relationship is unknown `belongsTo` will return `undefined`.\n      Note: Relationships are loaded lazily and cached upon first access.\n      @method belongsTo\n     @param {String} keyName\n     @param {Object} [options]\n     @return {(Snapshot|String|null|undefined)} A snapshot or ID of a known\n     relationship or null if the relationship is known but unset. undefined\n     will be returned if the contents of the relationship is unknown.\n     */\n\n\n    belongsTo(keyName, options) {\n      var returnModeIsId = !!(options && options.id);\n      var relationship;\n      var inverseInternalModel;\n      var result;\n      var store = this._internalModel.store;\n\n      if (returnModeIsId === true && keyName in this._belongsToIds) {\n        return this._belongsToIds[keyName];\n      }\n\n      if (returnModeIsId === false && keyName in this._belongsToRelationships) {\n        return this._belongsToRelationships[keyName];\n      }\n\n      var relationshipMeta = store._relationshipMetaFor(this.modelName, null, keyName);\n\n      ( !(relationshipMeta && relationshipMeta.kind === 'belongsTo') && Ember.assert(`Model '${this.identifier}' has no belongsTo relationship named '${keyName}' defined.`, relationshipMeta && relationshipMeta.kind === 'belongsTo')); // TODO @runspired it seems this code branch would not work with CUSTOM_MODEL_CLASSes\n      // TODO @runspired instead of casting here either generify relationship state or\n      // provide a mechanism on relationship state by which to narrow.\n\n      relationship = relationshipStateFor(this, keyName);\n      var value = relationship.getData();\n      var data = value && value.data;\n      inverseInternalModel = data ? store._internalModelForResource(data) : null;\n\n      if (value && value.data !== undefined) {\n        if (inverseInternalModel && !inverseInternalModel.isDeleted()) {\n          if (returnModeIsId) {\n            result = inverseInternalModel.id;\n          } else {\n            result = inverseInternalModel.createSnapshot();\n          }\n        } else {\n          result = null;\n        }\n      }\n\n      if (returnModeIsId) {\n        this._belongsToIds[keyName] = result;\n      } else {\n        this._belongsToRelationships[keyName] = result;\n      }\n\n      return result;\n    }\n    /**\n     Returns the current value of a hasMany relationship.\n      `hasMany` takes an optional hash of options as a second parameter,\n     currently supported options are:\n      - `ids`: set to `true` if you only want the IDs of the related records to be\n     returned.\n      Example\n      ```javascript\n     // store.push('post', { id: 1, title: 'Hello World', comments: [2, 3] });\n     postSnapshot.hasMany('comments'); // => [Snapshot, Snapshot]\n     postSnapshot.hasMany('comments', { ids: true }); // => ['2', '3']\n      // store.push('post', { id: 1, title: 'Hello World' });\n     postSnapshot.hasMany('comments'); // => undefined\n     ```\n      Note: Relationships are loaded lazily and cached upon first access.\n      @method hasMany\n     @param {String} keyName\n     @param {Object} [options]\n     @return {(Array|undefined)} An array of snapshots or IDs of a known\n     relationship or an empty array if the relationship is known but unset.\n     undefined will be returned if the contents of the relationship is unknown.\n     */\n\n\n    hasMany(keyName, options) {\n      var returnModeIsIds = !!(options && options.ids);\n      var relationship;\n      var results;\n      var cachedIds = this._hasManyIds[keyName];\n      var cachedSnapshots = this._hasManyRelationships[keyName];\n\n      if (returnModeIsIds === true && keyName in this._hasManyIds) {\n        return cachedIds;\n      }\n\n      if (returnModeIsIds === false && keyName in this._hasManyRelationships) {\n        return cachedSnapshots;\n      }\n\n      var store = this._internalModel.store;\n\n      var relationshipMeta = store._relationshipMetaFor(this.modelName, null, keyName);\n\n      ( !(relationshipMeta && relationshipMeta.kind === 'hasMany') && Ember.assert(`Model '${this.identifier}' has no hasMany relationship named '${keyName}' defined.`, relationshipMeta && relationshipMeta.kind === 'hasMany')); // TODO @runspired it seems this code branch would not work with CUSTOM_MODEL_CLASSes\n      // TODO @runspired instead of casting here either generify relationship state or\n      // provide a mechanism on relationship state by which to narrow.\n\n      relationship = relationshipStateFor(this, keyName);\n      var value = relationship.getData();\n\n      if (value.data) {\n        results = [];\n        value.data.forEach(member => {\n          var internalModel = store._internalModelForResource(member);\n\n          if (!internalModel.isDeleted()) {\n            if (returnModeIsIds) {\n              results.push(member.id);\n            } else {\n              results.push(internalModel.createSnapshot());\n            }\n          }\n        });\n      } // we assign even if `undefined` so that we don't reprocess the relationship\n      // on next access. This works with the `keyName in` checks above.\n\n\n      if (returnModeIsIds) {\n        this._hasManyIds[keyName] = results;\n      } else {\n        this._hasManyRelationships[keyName] = results;\n      }\n\n      return results;\n    }\n    /**\n      Iterates through all the attributes of the model, calling the passed\n      function on each attribute.\n       Example\n       ```javascript\n      snapshot.eachAttribute(function(name, meta) {\n        // ...\n      });\n      ```\n       @method eachAttribute\n      @param {Function} callback the callback to execute\n      @param {Object} [binding] the value to which the callback's `this` should be bound\n    */\n\n\n    eachAttribute(callback, binding) {\n      {\n        // in the non CUSTOM_MODEL_CLASS world we only have DSModel instances\n        this.record.eachAttribute(callback, binding);\n      }\n    }\n    /**\n      Iterates through all the relationships of the model, calling the passed\n      function on each relationship.\n       Example\n       ```javascript\n      snapshot.eachRelationship(function(name, relationship) {\n        // ...\n      });\n      ```\n       @method eachRelationship\n      @param {Function} callback the callback to execute\n      @param {Object} [binding] the value to which the callback's `this` should be bound\n    */\n\n\n    eachRelationship(callback, binding) {\n      {\n        // in the non CUSTOM_MODEL_CLASS world we only have DSModel instances\n        this.record.eachRelationship(callback, binding);\n      }\n    }\n    /**\n      Serializes the snapshot using the serializer for the model.\n       Example\n       ```app/adapters/application.js\n      import Adapter from '@ember-data/adapter';\n       export default Adapter.extend({\n        createRecord(store, type, snapshot) {\n          var data = snapshot.serialize({ includeId: true });\n          var url = `/${type.modelName}`;\n           return fetch(url, {\n            method: 'POST',\n            body: data,\n          }).then((response) => response.json())\n        }\n      });\n      ```\n       @method serialize\n      @param {Object} options\n      @return {Object} an object whose values are primitive JSON values only\n     */\n\n\n    serialize(options) {\n      return this._store.serializerFor(this.modelName).serialize(this, options);\n    }\n\n  }\n\n  /**\n    @module @ember-data/store\n  */\n  function _bind(fn, ...args) {\n    return function () {\n      return fn.apply(undefined, args);\n    };\n  }\n  function _guard(promise, test) {\n    var guarded = promise.finally(() => {\n      if (!test()) {\n        guarded._subscribers.length = 0;\n      }\n    });\n    return guarded;\n  }\n  function _objectIsAlive(object) {\n    return !(Ember.get(object, 'isDestroyed') || Ember.get(object, 'isDestroying'));\n  }\n  function guardDestroyedStore(promise, store, label) {\n    var token;\n\n    {\n      token = store._trackAsyncRequestStart(label);\n    }\n\n    var wrapperPromise = Ember.RSVP.resolve(promise, label).then(v => promise);\n    return _guard(wrapperPromise, () => {\n      {\n        store._trackAsyncRequestEnd(token);\n      }\n\n      return _objectIsAlive(store);\n    });\n  }\n\n  /**\n    @module @ember-data/store\n  */\n\n  /*\n    This is a helper method that validates a JSON API top-level document\n\n    The format of a document is described here:\n    http://jsonapi.org/format/#document-top-level\n\n    @method validateDocumentStructure\n    @param {Object} doc JSON API document\n    @return {array} An array of errors found in the document structure\n  */\n  function validateDocumentStructure(doc) {\n    var errors = [];\n\n    if (!doc || typeof doc !== 'object') {\n      errors.push('Top level of a JSON API document must be an object');\n    } else {\n      if (!('data' in doc) && !('errors' in doc) && !('meta' in doc)) {\n        errors.push('One or more of the following keys must be present: \"data\", \"errors\", \"meta\".');\n      } else {\n        if ('data' in doc && 'errors' in doc) {\n          errors.push('Top level keys \"errors\" and \"data\" cannot both be present in a JSON API document');\n        }\n      }\n\n      if ('data' in doc) {\n        if (!(doc.data === null || Array.isArray(doc.data) || typeof doc.data === 'object')) {\n          errors.push('data must be null, an object, or an array');\n        }\n      }\n\n      if ('meta' in doc) {\n        if (typeof doc.meta !== 'object') {\n          errors.push('meta must be an object');\n        }\n      }\n\n      if ('errors' in doc) {\n        if (!Array.isArray(doc.errors)) {\n          errors.push('errors must be an array');\n        }\n      }\n\n      if ('links' in doc) {\n        if (typeof doc.links !== 'object') {\n          errors.push('links must be an object');\n        }\n      }\n\n      if ('jsonapi' in doc) {\n        if (typeof doc.jsonapi !== 'object') {\n          errors.push('jsonapi must be an object');\n        }\n      }\n\n      if ('included' in doc) {\n        if (typeof doc.included !== 'object') {\n          errors.push('included must be an array');\n        }\n      }\n    }\n\n    return errors;\n  }\n  /*\n    This is a helper method that always returns a JSON-API Document.\n\n    @method normalizeResponseHelper\n    @param {Serializer} serializer\n    @param {Store} store\n    @param {subclass of Model} modelClass\n    @param {Object} payload\n    @param {String|Number} id\n    @param {String} requestType\n    @return {Object} JSON-API Document\n  */\n\n  function normalizeResponseHelper(serializer, store, modelClass, payload, id, requestType) {\n    var normalizedResponse = serializer.normalizeResponse(store, modelClass, payload, id, requestType);\n    var validationErrors = [];\n\n    {\n      validationErrors = validateDocumentStructure(normalizedResponse);\n    }\n\n    ( !(validationErrors.length === 0) && Ember.assert(`normalizeResponse must return a valid JSON API document:\\n\\t* ${validationErrors.join('\\n\\t* ')}`, validationErrors.length === 0));\n    return normalizedResponse;\n  }\n\n  // TODO @runspired symbol shouldn't be in ts-interfaces\n\n  var emberRun = Ember.run.backburner;\n\n  /**\n    @module @ember-data/store\n  */\n\n  /**\n   `InternalModelMap` is a custom storage map for internalModels of a given modelName\n   used by `IdentityMap`.\n\n   It was extracted from an implicit pojo based \"internalModel map\" and preserves\n   that interface while we work towards a more official API.\n\n   @class InternalModelMap\n   @private\n   */\n  class InternalModelMap {\n    constructor(modelName) {\n      this.modelName = modelName;\n      this._idToModel = Object.create(null);\n      this._models = [];\n      this._metadata = null;\n    }\n    /**\n     * @method get\n     * @param id {String}\n     * @return {InternalModel}\n     */\n\n\n    get(id) {\n      return this._idToModel[id] || null;\n    }\n\n    has(id) {\n      return !!this._idToModel[id];\n    }\n\n    get length() {\n      return this._models.length;\n    }\n\n    set(id, internalModel) {\n      ( !(typeof id === 'string' && id.length > 0) && Ember.assert(`You cannot index an internalModel by an empty id'`, typeof id === 'string' && id.length > 0));\n      ( !(internalModel instanceof InternalModel) && Ember.assert(`You cannot set an index for an internalModel to something other than an internalModel`, internalModel instanceof InternalModel));\n      ( !(this.contains(internalModel)) && Ember.assert(`You cannot set an index for an internalModel that is not in the InternalModelMap`, this.contains(internalModel)));\n      ( !(!this.has(id) || this.get(id) === internalModel) && Ember.assert(`You cannot update the id index of an InternalModel once set. Attempted to update ${id}.`, !this.has(id) || this.get(id) === internalModel));\n      this._idToModel[id] = internalModel;\n    }\n\n    add(internalModel, id) {\n      ( !(!this.contains(internalModel)) && Ember.assert(`You cannot re-add an already present InternalModel to the InternalModelMap.`, !this.contains(internalModel)));\n\n      if (id) {\n        ( !(!this.has(id) || this.get(id) === internalModel) && Ember.assert(`Duplicate InternalModel for ${this.modelName}:${id} detected.`, !this.has(id) || this.get(id) === internalModel));\n        this._idToModel[id] = internalModel;\n      }\n\n      this._models.push(internalModel);\n    }\n\n    remove(internalModel, id) {\n      delete this._idToModel[id];\n\n      var loc = this._models.indexOf(internalModel);\n\n      if (loc !== -1) {\n        this._models.splice(loc, 1);\n      }\n    }\n\n    contains(internalModel) {\n      return this._models.indexOf(internalModel) !== -1;\n    }\n    /**\n     An array of all models of this modelName\n     @property models\n     @type Array\n     */\n\n\n    get models() {\n      return this._models;\n    }\n    /**\n     * meta information about internalModels\n     * @property metadata\n     * @type Object\n     */\n\n\n    get metadata() {\n      return this._metadata || (this._metadata = Object.create(null));\n    }\n    /**\n     Destroy all models in the internalModelTest and wipe metadata.\n      @method clear\n     */\n\n\n    clear() {\n      var internalModels = this._models;\n      this._models = [];\n\n      for (var i = 0; i < internalModels.length; i++) {\n        var internalModel = internalModels[i];\n        internalModel.unloadRecord();\n      }\n\n      this._metadata = null;\n    }\n\n  }\n\n  /**\n    @module @ember-data/store\n  */\n\n  /**\n   `IdentityMap` is a custom storage map for records by modelName\n   used by `Store`.\n\n   @class IdentityMap\n   @private\n   */\n  class IdentityMap {\n    constructor() {\n      this._map = Object.create(null);\n    }\n\n    /**\n     Retrieves the `InternalModelMap` for a given modelName,\n     creating one if one did not already exist. This is\n     similar to `getWithDefault` or `get` on a `MapWithDefault`\n      @method retrieve\n     @param modelName a previously normalized modelName\n     @return {InternalModelMap} the InternalModelMap for the given modelName\n     */\n    retrieve(modelName) {\n      var map = this._map[modelName];\n\n      if (map === undefined) {\n        map = this._map[modelName] = new InternalModelMap(modelName);\n      }\n\n      return map;\n    }\n    /**\n     Clears the contents of all known `RecordMaps`, but does\n     not remove the InternalModelMap instances.\n      @method clear\n     */\n\n\n    clear() {\n      var map = this._map;\n      var keys = Object.keys(map);\n\n      for (var i = 0; i < keys.length; i++) {\n        var key = keys[i];\n        map[key].clear();\n      }\n    }\n\n  }\n\n  /**\n    @module @ember-data/store\n  */\n  var FactoryCache = new WeakMap();\n  var RecordCache = new WeakMap();\n  function peekRecordIdentifier(record) {\n    return RecordCache.get(record);\n  }\n  function recordIdentifierFor(record) {\n    var identifier = RecordCache.get(record);\n\n    if ( identifier === undefined) {\n      throw new Error(`${record} is not a record instantiated by @ember-data/store`);\n    }\n\n    return identifier;\n  }\n  function setRecordIdentifier(record, identifier) {\n    if ( RecordCache.has(record)) {\n      throw new Error(`${record} was already assigned an identifier`);\n    }\n    /*\n    It would be nice to do a reverse check here that an identifier has not\n    previously been assigned a record; however, unload + rematerialization\n    prevents us from having a great way of doing so when CustomRecordClasses\n    don't necessarily give us access to a `isDestroyed` for dematerialized\n    instance.\n    */\n\n\n    RecordCache.set(record, identifier);\n  }\n  function internalModelFactoryFor(store) {\n    var factory = FactoryCache.get(store);\n\n    if (factory === undefined) {\n      factory = new InternalModelFactory(store);\n      FactoryCache.set(store, factory);\n    }\n\n    return factory;\n  }\n  /**\n   * The InternalModelFactory handles the lifecyle of\n   * instantiating, caching, and destroying InternalModel\n   * instances.\n   *\n   * @internal\n   */\n\n  class InternalModelFactory {\n    constructor(store) {\n      this.store = store;\n      this._identityMap = void 0;\n      this._newlyCreated = void 0;\n      this.identifierCache = void 0;\n      this.identifierCache = identifierCacheFor(store);\n\n      this.identifierCache.__configureMerge((identifier, matchedIdentifier, resourceData) => {\n        var intendedIdentifier = identifier.id === resourceData.id ? identifier : matchedIdentifier;\n        var altIdentifier = identifier.id === resourceData.id ? matchedIdentifier : identifier; // check for duplicate InternalModel's\n\n        var map = this.modelMapFor(identifier.type);\n        var im = map.get(intendedIdentifier.lid);\n        var otherIm = map.get(altIdentifier.lid); // we cannot merge internalModels when both have records\n        // (this may not be strictly true, we could probably swap the internalModel the record points at)\n\n        if (im && otherIm && im.hasRecord && otherIm.hasRecord) {\n          throw new Error(`Failed to update the 'id' for the RecordIdentifier '${identifier}' to '${resourceData.id}', because that id is already in use by '${matchedIdentifier}'`);\n        } // remove otherIm from cache\n\n\n        if (otherIm) {\n          map.remove(otherIm, altIdentifier.lid);\n        }\n\n        if (im === null && otherIm === null) {\n          // nothing more to do\n          return intendedIdentifier; // only the other has an InternalModel\n          // OR only the other has a Record\n        } else if (im === null && otherIm !== null || im && !im.hasRecord && otherIm && otherIm.hasRecord) {\n          if (im) {\n            // TODO check if we are retained in any async relationships\n            map.remove(im, intendedIdentifier.lid); // im.destroy();\n          }\n\n          im = otherIm; // TODO do we need to notify the id change?\n\n          im._id = intendedIdentifier.id;\n          map.add(im, intendedIdentifier.lid); // just use im\n        }\n\n        return intendedIdentifier;\n      });\n\n      this._identityMap = new IdentityMap();\n    }\n    /**\n     * Retrieve the InternalModel for a given { type, id, lid }.\n     *\n     * If an InternalModel does not exist, it instantiates one.\n     *\n     * If an InternalModel does exist bus has a scheduled destroy,\n     *   the scheduled destroy will be cancelled.\n     *\n     * @internal\n     */\n\n\n    lookup(resource, data) {\n      if (data !== undefined) {\n        // if we've been given data associated with this lookup\n        // we must first give secondary-caches for LIDs the\n        // opportunity to populate based on it\n        this.identifierCache.getOrCreateRecordIdentifier(data);\n      }\n\n      var identifier = this.identifierCache.getOrCreateRecordIdentifier(resource);\n      var internalModel = this.peek(identifier);\n\n      if (internalModel) {\n        // unloadRecord is async, if one attempts to unload + then sync push,\n        //   we must ensure the unload is canceled before continuing\n        //   The createRecord path will take _existingInternalModelForId()\n        //   which will call `destroySync` instead for this unload + then\n        //   sync createRecord scenario. Once we have true client-side\n        //   delete signaling, we should never call destroySync\n        if (internalModel.hasScheduledDestroy()) {\n          internalModel.cancelDestroy();\n        }\n\n        return internalModel;\n      }\n\n      return this._build(identifier, false);\n    }\n    /**\n     * Peek the InternalModel for a given { type, id, lid }.\n     *\n     * If an InternalModel does not exist, return `null`.\n     *\n     * @internal\n     */\n\n\n    peek(identifier) {\n      return this.modelMapFor(identifier.type).get(identifier.lid);\n    }\n\n    getByResource(resource) {\n      var normalizedResource = constructResource(resource.type, resource.id, resource.lid);\n      return this.lookup(normalizedResource);\n    }\n\n    setRecordId(type, id, lid) {\n      var resource = {\n        type,\n        id: null,\n        lid\n      };\n      var identifier = this.identifierCache.getOrCreateRecordIdentifier(resource);\n      var internalModel = this.peek(identifier);\n\n      if (internalModel === null) {\n        throw new Error(`Cannot set the id ${id} on the record ${type}:${lid} as there is no such record in the cache.`);\n      }\n\n      var oldId = internalModel.id;\n      var modelName = internalModel.modelName; // ID absolutely can't be missing if the oldID is empty (missing Id in response for a new record)\n\n      ( !(!(id === null && oldId === null)) && Ember.assert(`'${modelName}' was saved to the server, but the response does not have an id and your record does not either.`, !(id === null && oldId === null))); // ID absolutely can't be different than oldID if oldID is not null\n      // TODO this assertion and restriction may not strictly be needed in the identifiers world\n\n      ( !(!(oldId !== null && id !== oldId)) && Ember.assert(`Cannot update the id for '${modelName}:${lid}' from '${oldId}' to '${id}'.`, !(oldId !== null && id !== oldId))); // ID can be null if oldID is not null (altered ID in response for a record)\n      // however, this is more than likely a developer error.\n\n      if (oldId !== null && id === null) {\n        ( Ember.warn(`Your ${modelName} record was saved to the server, but the response does not have an id.`, !(oldId !== null && id === null)));\n        return;\n      }\n\n      var existingInternalModel = this.peekById(modelName, id);\n      ( !(Ember.isNone(existingInternalModel) || existingInternalModel === internalModel) && Ember.assert(`'${modelName}' was saved to the server, but the response returned the new id '${id}', which has already been used with another record.'`, Ember.isNone(existingInternalModel) || existingInternalModel === internalModel));\n\n      if (identifier.id === null) {\n        this.identifierCache.updateRecordIdentifier(identifier, {\n          type,\n          id\n        });\n      }\n\n      internalModel.setId(id);\n    }\n\n    peekById(type, id) {\n      var identifier = this.identifierCache.peekRecordIdentifier({\n        type,\n        id\n      });\n      var internalModel = identifier ? this.modelMapFor(type).get(identifier.lid) : null;\n\n      if (internalModel && internalModel.hasScheduledDestroy()) {\n        // unloadRecord is async, if one attempts to unload + then sync create,\n        //   we must ensure the unload is complete before starting the create\n        //   The push path will take this.lookup()\n        //   which will call `cancelDestroy` instead for this unload + then\n        //   sync push scenario. Once we have true client-side\n        //   delete signaling, we should never call destroySync\n        internalModel.destroySync();\n        internalModel = null;\n      }\n\n      return internalModel;\n    }\n\n    build(newResourceInfo) {\n      return this._build(newResourceInfo, true);\n    }\n\n    _build(resource, isCreate = false) {\n      if (isCreate === true && resource.id) {\n        var existingInternalModel = this.peekById(resource.type, resource.id);\n        ( !(!existingInternalModel) && Ember.assert(`The id ${resource.id} has already been used with another '${resource.type}' record.`, !existingInternalModel));\n      }\n\n      var {\n        identifierCache\n      } = this;\n      var identifier;\n\n      if (isCreate === true) {\n        identifier = identifierCache.createIdentifierForNewRecord(resource);\n      } else {\n        identifier = resource;\n      } // lookupFactory should really return an object that creates\n      // instances with the injections applied\n\n\n      var internalModel = new InternalModel(this.store, identifier);\n      this.modelMapFor(resource.type).add(internalModel, identifier.lid);\n      return internalModel;\n    }\n\n    remove(internalModel) {\n      var recordMap = this.modelMapFor(internalModel.modelName);\n      var clientId = internalModel.identifier.lid;\n      recordMap.remove(internalModel, clientId);\n      var {\n        identifier\n      } = internalModel;\n      this.identifierCache.forgetRecordIdentifier(identifier);\n    }\n\n    modelMapFor(type) {\n      return this._identityMap.retrieve(type);\n    }\n\n    _newlyCreatedModelsFor(type) {\n      return this._newlyCreated.retrieve(type);\n    }\n\n    clear(type) {\n      if (type === undefined) {\n        this._identityMap.clear();\n      } else {\n        this.modelMapFor(type).clear();\n      }\n    }\n\n  }\n\n  function isResourceIdentiferWithRelatedLinks(value) {\n    return value && value.links && value.links.related;\n  }\n  /**\n    This is the baseClass for the different References\n    like RecordReference/HasManyReference/BelongsToReference\n\n   @class Reference\n   */\n\n\n  class Reference {\n    constructor(store, internalModel) {\n      this.store = store;\n      this.internalModel = internalModel;\n      this.recordData = void 0;\n      this.recordData = recordDataFor(this);\n    }\n\n    _resource() {}\n    /**\n     This returns a string that represents how the reference will be\n     looked up when it is loaded. If the relationship has a link it will\n     use the \"link\" otherwise it defaults to \"id\".\n      Example\n      ```app/models/post.js\n     import Model, { hasMany } from '@ember-data/model';\n      export default Model.extend({\n       comments: hasMany({ async: true })\n     });\n     ```\n      ```javascript\n     let post = store.push({\n       data: {\n         type: 'post',\n         id: 1,\n         relationships: {\n           comments: {\n             data: [{ type: 'comment', id: 1 }]\n           }\n         }\n       }\n     });\n      let commentsRef = post.hasMany('comments');\n      // get the identifier of the reference\n     if (commentsRef.remoteType() === \"ids\") {\n       let ids = commentsRef.ids();\n     } else if (commentsRef.remoteType() === \"link\") {\n       let link = commentsRef.link();\n     }\n     ```\n      @method remoteType\n     @return {String} The name of the remote type. This should either be \"link\" or \"ids\"\n     */\n\n\n    remoteType() {\n      var value = this._resource();\n\n      if (isResourceIdentiferWithRelatedLinks(value)) {\n        return 'link';\n      }\n\n      return 'id';\n    }\n    /**\n     The link Ember Data will use to fetch or reload this belongs-to\n     relationship.\n      Example\n      ```javascript\n     // models/blog.js\n     import Model, { belongsTo } from '@ember-data/model';\n     export default Model.extend({\n        user: belongsTo({ async: true })\n      });\n      let blog = store.push({\n        data: {\n          type: 'blog',\n          id: 1,\n          relationships: {\n            user: {\n              links: {\n                related: '/articles/1/author'\n              }\n            }\n          }\n        }\n      });\n     let userRef = blog.belongsTo('user');\n      // get the identifier of the reference\n     if (userRef.remoteType() === \"link\") {\n        let link = userRef.link();\n      }\n     ```\n      @method link\n     @return {String} The link Ember Data will use to fetch or reload this belongs-to relationship.\n     */\n\n\n    link() {\n      var link;\n\n      var resource = this._resource();\n\n      if (isResourceIdentiferWithRelatedLinks(resource)) {\n        if (resource.links) {\n          link = resource.links.related;\n          link = !link || typeof link === 'string' ? link : link.href;\n        }\n      }\n\n      return link || null;\n    }\n    /**\n     The meta data for the belongs-to relationship.\n      Example\n      ```javascript\n     // models/blog.js\n     import Model, { belongsTo } from '@ember-data/model';\n     export default Model.extend({\n        user: belongsTo({ async: true })\n      });\n      let blog = store.push({\n        data: {\n          type: 'blog',\n          id: 1,\n          relationships: {\n            user: {\n              links: {\n                related: {\n                  href: '/articles/1/author'\n                },\n                meta: {\n                  lastUpdated: 1458014400000\n                }\n              }\n            }\n          }\n        }\n      });\n      let userRef = blog.belongsTo('user');\n      userRef.meta() // { lastUpdated: 1458014400000 }\n     ```\n      @method meta\n     @return {Object} The meta information for the belongs-to relationship.\n     */\n\n\n    meta() {\n      var meta = null;\n\n      var resource = this._resource();\n\n      if (resource && resource.meta && typeof resource.meta === 'object') {\n        meta = resource.meta;\n      }\n\n      return meta;\n    }\n\n  }\n\n  {\n    Reference.prototype.links = function links() {\n      var resource = this._resource();\n\n      return resource && resource.links ? resource.links : null;\n    };\n  }\n\n  /**\n    @module @ember-data/store\n  */\n\n  /**\n   A `BelongsToReference` is a low-level API that allows users and\n   addon authors to perform meta-operations on a belongs-to\n   relationship.\n\n   @class BelongsToReference\n   @extends Reference\n   */\n\n  class BelongsToReference extends Reference {\n    constructor(store, parentInternalModel, belongsToRelationship, key) {\n      super(store, parentInternalModel);\n      this.key = key;\n      this.belongsToRelationship = belongsToRelationship;\n      this.type = belongsToRelationship.relationshipMeta.type;\n      this.parent = parentInternalModel.recordReference;\n      this.parentInternalModel = parentInternalModel; // TODO inverse\n    }\n    /**\n     The `id` of the record that this reference refers to. Together, the\n     `type()` and `id()` methods form a composite key for the identity\n     map. This can be used to access the id of an async relationship\n     without triggering a fetch that would normally happen if you\n     attempted to use `record.get('relationship.id')`.\n      Example\n      ```javascript\n     // models/blog.js\n     export default Model.extend({\n        user: belongsTo({ async: true })\n      });\n      let blog = store.push({\n        data: {\n          type: 'blog',\n          id: 1,\n          relationships: {\n            user: {\n              data: { type: 'user', id: 1 }\n            }\n          }\n        }\n      });\n     let userRef = blog.belongsTo('user');\n      // get the identifier of the reference\n     if (userRef.remoteType() === \"id\") {\n        let id = userRef.id();\n      }\n     ```\n      @method id\n     @return {String} The id of the record in this belongsTo relationship.\n     */\n\n\n    id() {\n      var id = null;\n\n      var resource = this._resource();\n\n      if (resource && resource.data && resource.data.id) {\n        id = resource.data.id;\n      }\n\n      return id;\n    }\n\n    _resource() {\n      return this.recordData.getBelongsTo(this.key);\n    }\n    /**\n     `push` can be used to update the data in the relationship and Ember\n     Data will treat the new data as the conanical value of this\n     relationship on the backend.\n      Example\n      ```app/models/blog.js\n     import Model, { belongsTo } from '@ember-data/model';\n      export default Model.extend({\n        user: belongsTo({ async: true })\n      });\n      let blog = store.push({\n        data: {\n          type: 'blog',\n          id: 1,\n          relationships: {\n            user: {\n              data: { type: 'user', id: 1 }\n            }\n          }\n        }\n      });\n     let userRef = blog.belongsTo('user');\n      // provide data for reference\n     userRef.push({\n        data: {\n          type: 'user',\n          id: 1,\n          attributes: {\n            username: \"@user\"\n          }\n        }\n      }).then(function(user) {\n        userRef.value() === user;\n      });\n     ```\n      @method push\n     @param {Object|Promise} objectOrPromise a promise that resolves to a JSONAPI document object describing the new value of this relationship.\n     @return {Promise<record>} A promise that resolves with the new value in this belongs-to relationship.\n     */\n\n\n    push(objectOrPromise) {\n      // TODO deprecate thenable support\n      return Ember.RSVP.resolve(objectOrPromise).then(data => {\n        var record;\n\n        if ( peekRecordIdentifier(data)) {\n          ( Ember.deprecate('Pushing a record into a BelongsToReference is deprecated', false, {\n            id: 'ember-data:belongs-to-reference-push-record',\n            until: '4.0'\n          }));\n          record = data;\n        } else {\n          record = this.store.push(data);\n        }\n\n        Debug.assertPolymorphicType(this.internalModel, this.belongsToRelationship.relationshipMeta, record._internalModel, this.store); //TODO Igor cleanup, maybe move to relationship push\n\n        this.belongsToRelationship.setCanonicalRecordData(recordDataFor(record));\n        return record;\n      });\n    }\n    /**\n     `value()` synchronously returns the current value of the belongs-to\n     relationship. Unlike `record.get('relationshipName')`, calling\n     `value()` on a reference does not trigger a fetch if the async\n     relationship is not yet loaded. If the relationship is not loaded\n     it will always return `null`.\n      Example\n      ```javascript\n     // models/blog.js\n     import Model, { belongsTo } from '@ember-data/model';\n      export default Model.extend({\n        user: belongsTo({ async: true })\n      });\n      let blog = store.push({\n        data: {\n          type: 'blog',\n          id: 1,\n          relationships: {\n            user: {\n              data: { type: 'user', id: 1 }\n            }\n          }\n        }\n      });\n     let userRef = blog.belongsTo('user');\n      userRef.value(); // null\n      // provide data for reference\n     userRef.push({\n        data: {\n          type: 'user',\n          id: 1,\n          attributes: {\n            username: \"@user\"\n          }\n        }\n      }).then(function(user) {\n        userRef.value(); // user\n      });\n     ```\n      @method value\n     @return {Model} the record in this relationship\n     */\n\n\n    value() {\n      var store = this.parentInternalModel.store;\n\n      var resource = this._resource();\n\n      if (resource && resource.data) {\n        var inverseInternalModel = store._internalModelForResource(resource.data);\n\n        if (inverseInternalModel && inverseInternalModel.isLoaded()) {\n          return inverseInternalModel.getRecord();\n        }\n      }\n\n      return null;\n    }\n    /**\n     Loads a record in a belongs-to relationship if it is not already\n     loaded. If the relationship is already loaded this method does not\n     trigger a new load.\n      Example\n      ```javascript\n     // models/blog.js\n     import Model, { belongsTo } from '@ember-data/model';\n      export default Model.extend({\n        user: belongsTo({ async: true })\n      });\n      let blog = store.push({\n        data: {\n          type: 'blog',\n          id: 1,\n          relationships: {\n            user: {\n              data: { type: 'user', id: 1 }\n            }\n          }\n        }\n      });\n     let userRef = blog.belongsTo('user');\n      userRef.value(); // null\n      userRef.load().then(function(user) {\n        userRef.value() === user\n      });\n     ```\n      You may also pass in an options object whose properties will be\n     fed forward. This enables you to pass `adapterOptions` into the\n     request given to the adapter via the reference.\n      Example\n      ```javascript\n     userRef.load({ adapterOptions: { isPrivate: true } }).then(function(user) {\n       userRef.value() === user;\n     });\n     ```\n      ```app/adapters/user.js\n     export default ApplicationAdapter.extend({\n       findRecord(store, type, id, snapshot) {\n         // In the adapter you will have access to adapterOptions.\n         let adapterOptions = snapshot.adapterOptions;\n       }\n     });\n     ```\n      @method load\n     @param {Object} options the options to pass in.\n     @return {Promise} a promise that resolves with the record in this belongs-to relationship.\n     */\n\n\n    load(options) {\n      return this.parentInternalModel.getBelongsTo(this.key, options);\n    }\n    /**\n     Triggers a reload of the value in this relationship. If the\n     remoteType is `\"link\"` Ember Data will use the relationship link to\n     reload the relationship. Otherwise it will reload the record by its\n     id.\n      Example\n      ```javascript\n     // models/blog.js\n     import Model, { belongsTo } from '@ember-data/model';\n     export default Model.extend({\n        user: belongsTo({ async: true })\n      });\n      let blog = store.push({\n        data: {\n          type: 'blog',\n          id: 1,\n          relationships: {\n            user: {\n              data: { type: 'user', id: 1 }\n            }\n          }\n        }\n      });\n     let userRef = blog.belongsTo('user');\n      userRef.reload().then(function(user) {\n        userRef.value() === user\n      });\n     ```\n      You may also pass in an options object whose properties will be\n     fed forward. This enables you to pass `adapterOptions` into the\n     request given to the adapter via the reference. A full example\n     can be found in the `load` method.\n      Example\n      ```javascript\n     userRef.reload({ adapterOptions: { isPrivate: true } })\n     ```\n      @method reload\n     @param {Object} options the options to pass in.\n     @return {Promise} a promise that resolves with the record in this belongs-to relationship after the reload has completed.\n     */\n\n\n    reload(options) {\n      return this.parentInternalModel.reloadBelongsTo(this.key, options).then(internalModel => {\n        return this.value();\n      });\n    }\n\n  }\n\n  /**\n    @module @ember-data/store\n  */\n\n  /**\n   A `HasManyReference` is a low-level API that allows users and addon\n   authors to perform meta-operations on a has-many relationship.\n\n   @class HasManyReference\n   @extends Reference\n   */\n\n  class HasManyReference extends Reference {\n    constructor(store, parentInternalModel, hasManyRelationship, key) {\n      super(store, parentInternalModel);\n      this.key = key;\n      this.hasManyRelationship = hasManyRelationship;\n      this.type = hasManyRelationship.relationshipMeta.type;\n      this.parent = parentInternalModel.recordReference;\n      this.parentInternalModel = parentInternalModel; // TODO inverse\n    }\n\n    _resource() {\n      return this.recordData.getHasMany(this.key);\n    }\n    /**\n     This returns a string that represents how the reference will be\n     looked up when it is loaded. If the relationship has a link it will\n     use the \"link\" otherwise it defaults to \"id\".\n      Example\n      ```app/models/post.js\n     import Model, { hasMany } from '@ember-data/model';\n     export default Model.extend({\n       comments: hasMany({ async: true })\n     });\n     ```\n      ```javascript\n     let post = store.push({\n       data: {\n         type: 'post',\n         id: 1,\n         relationships: {\n           comments: {\n             data: [{ type: 'comment', id: 1 }]\n           }\n         }\n       }\n     });\n      let commentsRef = post.hasMany('comments');\n      // get the identifier of the reference\n     if (commentsRef.remoteType() === \"ids\") {\n       let ids = commentsRef.ids();\n     } else if (commentsRef.remoteType() === \"link\") {\n       let link = commentsRef.link();\n     }\n     ```\n      @method remoteType\n     @return {String} The name of the remote type. This should either be `link` or `ids`\n     */\n\n\n    remoteType() {\n      var value = this._resource();\n\n      if (value && value.links && value.links.related) {\n        return 'link';\n      }\n\n      return 'ids';\n    }\n    /**\n     `ids()` returns an array of the record IDs in this relationship.\n      Example\n      ```app/models/post.js\n     import Model, { hasMany } from '@ember-data/model';\n     export default Model.extend({\n       comments: hasMany({ async: true })\n     });\n     ```\n      ```javascript\n     let post = store.push({\n       data: {\n         type: 'post',\n         id: 1,\n         relationships: {\n           comments: {\n             data: [{ type: 'comment', id: 1 }]\n           }\n         }\n       }\n     });\n      let commentsRef = post.hasMany('comments');\n      commentsRef.ids(); // ['1']\n     ```\n      @method ids\n     @return {Array} The ids in this has-many relationship\n     */\n\n\n    ids() {\n      var resource = this._resource();\n\n      var ids = [];\n\n      if (resource.data) {\n        ids = resource.data.map(data => data.id);\n      }\n\n      return ids;\n    }\n    /**\n     `push` can be used to update the data in the relationship and Ember\n     Data will treat the new data as the canonical value of this\n     relationship on the backend.\n      Example\n      ```app/models/post.js\n     import Model, { hasMany } from '@ember-data/model';\n     export default Model.extend({\n       comments: hasMany({ async: true })\n     });\n     ```\n      ```\n     let post = store.push({\n       data: {\n         type: 'post',\n         id: 1,\n         relationships: {\n           comments: {\n             data: [{ type: 'comment', id: 1 }]\n           }\n         }\n       }\n     });\n      let commentsRef = post.hasMany('comments');\n      commentsRef.ids(); // ['1']\n      commentsRef.push([\n     [{ type: 'comment', id: 2 }],\n     [{ type: 'comment', id: 3 }],\n     ])\n      commentsRef.ids(); // ['2', '3']\n     ```\n      @method push\n     @param {Array|Promise} objectOrPromise a promise that resolves to a JSONAPI document object describing the new value of this relationship.\n     @return {ManyArray}\n     */\n\n\n    push(objectOrPromise) {\n      return Ember.RSVP.resolve(objectOrPromise).then(payload => {\n        var array = payload;\n\n        if (typeof payload === 'object' && payload.data) {\n          array = payload.data;\n        }\n\n        var internalModels = array.map(obj => {\n          var record = this.store.push(obj);\n\n          {\n            var relationshipMeta = this.hasManyRelationship.relationshipMeta;\n            Debug.assertPolymorphicType(this.internalModel, relationshipMeta, record._internalModel, this.store);\n          }\n\n          return recordDataFor(record);\n        });\n        this.hasManyRelationship.computeChanges(internalModels);\n        return this.internalModel.getHasMany(this.hasManyRelationship.key); // TODO IGOR it seems wrong that we were returning the many array here\n        //return this.hasManyRelationship.manyArray;\n      });\n    }\n\n    _isLoaded() {\n      var hasRelationshipDataProperty = this.hasManyRelationship.hasAnyRelationshipData;\n\n      if (!hasRelationshipDataProperty) {\n        return false;\n      }\n\n      var members = this.hasManyRelationship.members.toArray(); //TODO Igor cleanup\n\n      return members.every(recordData => {\n        var store = this.parentInternalModel.store;\n\n        var internalModel = store._internalModelForResource(recordData.getResourceIdentifier());\n\n        return internalModel.isLoaded() === true;\n      });\n    }\n    /**\n     `value()` synchronously returns the current value of the has-many\n     relationship. Unlike `record.get('relationshipName')`, calling\n     `value()` on a reference does not trigger a fetch if the async\n     relationship is not yet loaded. If the relationship is not loaded\n     it will always return `null`.\n      Example\n      ```app/models/post.js\n     import Model, { hasMany } from '@ember-data/model';\n     export default Model.extend({\n       comments: hasMany({ async: true })\n     });\n     ```\n      ```javascript\n     let post = store.push({\n       data: {\n         type: 'post',\n         id: 1,\n         relationships: {\n           comments: {\n             data: [{ type: 'comment', id: 1 }]\n           }\n         }\n       }\n     });\n      let commentsRef = post.hasMany('comments');\n      post.get('comments').then(function(comments) {\n       commentsRef.value() === comments\n     })\n     ```\n      @method value\n     @return {ManyArray}\n     */\n\n\n    value() {\n      if (this._isLoaded()) {\n        return this.internalModel.getManyArray(this.key);\n      }\n\n      return null;\n    }\n    /**\n     Loads the relationship if it is not already loaded.  If the\n     relationship is already loaded this method does not trigger a new\n     load. This causes a request to the specified\n     relationship link or reloads all items currently in the relationship.\n      Example\n      ```app/models/post.js\n     import Model, { hasMany } from '@ember-data/model';\n     export default Model.extend({\n       comments: hasMany({ async: true })\n     });\n     ```\n      ```javascript\n     let post = store.push({\n       data: {\n         type: 'post',\n         id: 1,\n         relationships: {\n           comments: {\n             data: [{ type: 'comment', id: 1 }]\n           }\n         }\n       }\n     });\n      let commentsRef = post.hasMany('comments');\n      commentsRef.load().then(function(comments) {\n       //...\n     });\n     ```\n      You may also pass in an options object whose properties will be\n     fed forward. This enables you to pass `adapterOptions` into the\n     request given to the adapter via the reference.\n      Example\n      ```javascript\n     commentsRef.load({ adapterOptions: { isPrivate: true } })\n       .then(function(comments) {\n         //...\n       });\n     ```\n      ```app/adapters/comment.js\n     export default ApplicationAdapter.extend({\n       findMany(store, type, id, snapshots) {\n         // In the adapter you will have access to adapterOptions.\n         let adapterOptions = snapshots[0].adapterOptions;\n       }\n     });\n     ```\n      @method load\n     @param {Object} options the options to pass in.\n     @return {Promise} a promise that resolves with the ManyArray in\n     this has-many relationship.\n     */\n\n\n    load(options) {\n      return this.internalModel.getHasMany(this.key, options);\n    }\n    /**\n     Reloads this has-many relationship. This causes a request to the specified\n     relationship link or reloads all items currently in the relationship.\n      Example\n      ```app/models/post.js\n     import Model, { hasMany } from '@ember-data/model';\n     export default Model.extend({\n       comments: hasMany({ async: true })\n     });\n     ```\n      ```javascript\n     let post = store.push({\n       data: {\n         type: 'post',\n         id: 1,\n         relationships: {\n           comments: {\n             data: [{ type: 'comment', id: 1 }]\n           }\n         }\n       }\n     });\n      let commentsRef = post.hasMany('comments');\n      commentsRef.reload().then(function(comments) {\n       //...\n     });\n     ```\n      You may also pass in an options object whose properties will be\n     fed forward. This enables you to pass `adapterOptions` into the\n     request given to the adapter via the reference. A full example\n     can be found in the `load` method.\n      Example\n      ```javascript\n     commentsRef.reload({ adapterOptions: { isPrivate: true } })\n     ```\n      @method reload\n     @param {Object} options the options to pass in.\n     @return {Promise} a promise that resolves with the ManyArray in this has-many relationship.\n     */\n\n\n    reload(options) {\n      return this.internalModel.reloadHasMany(this.key, options);\n    }\n\n  }\n\n  /**\n    @module @ember-data/store\n  */\n\n  /**\n     A `RecordReference` is a low-level API that allows users and\n     addon authors to perform meta-operations on a record.\n\n     @class RecordReference\n     @extends Reference\n  */\n  class RecordReference extends Reference {\n    constructor(...args) {\n      super(...args);\n      this.type = this.internalModel.modelName;\n    }\n\n    get _id() {\n      return this.internalModel.id;\n    }\n    /**\n       The `id` of the record that this reference refers to.\n        Together, the `type` and `id` properties form a composite key for\n       the identity map.\n        Example\n        ```javascript\n       let userRef = store.getReference('user', 1);\n        userRef.id(); // '1'\n       ```\n        @method id\n       @return {String} The id of the record.\n    */\n\n\n    id() {\n      return this._id;\n    }\n    /**\n       How the reference will be looked up when it is loaded. Currently\n       this always returns `identity` to signify that a record will be\n       loaded by its `type` and `id`.\n        Example\n        ```javascript\n       const userRef = store.getReference('user', 1);\n        userRef.remoteType(); // 'identity'\n       ```\n        @method remoteType\n       @return {String} 'identity'\n    */\n\n\n    remoteType() {\n      return 'identity';\n    }\n    /**\n      This API allows you to provide a reference with new data. The\n      simplest usage of this API is similar to `store.push`: you provide a\n      normalized hash of data and the object represented by the reference\n      will update.\n       If you pass a promise to `push`, Ember Data will not ask the adapter\n      for the data if another attempt to fetch it is made in the\n      interim. When the promise resolves, the underlying object is updated\n      with the new data, and the promise returned by *this function* is resolved\n      with that object.\n       For example, `recordReference.push(promise)` will be resolved with a\n      record.\n        Example\n        ```javascript\n       let userRef = store.getReference('user', 1);\n        // provide data for reference\n       userRef.push({\n         data: {\n           id: \"1\",\n           type: \"user\",\n           attributes: {\n             username: \"@user\"\n           }\n         }\n       }).then(function(user) {\n         userRef.value() === user;\n       });\n       ```\n       @method push\n      @param objectOrPromise a JSON:API ResourceDocument or a promise resolving to one\n      @return a promise for the value (record or relationship)\n    */\n\n\n    push(objectOrPromise) {\n      return Ember.RSVP.resolve(objectOrPromise).then(data => {\n        return this.store.push(data);\n      });\n    }\n    /**\n      If the entity referred to by the reference is already loaded, it is\n      present as `reference.value`. Otherwise the value returned by this function\n      is `null`.\n        Example\n        ```javascript\n       let userRef = store.getReference('user', 1);\n        userRef.value(); // user\n       ```\n        @method value\n       @return {Model} the record for this RecordReference\n    */\n\n\n    value() {\n      if (this.internalModel.hasRecord) {\n        return this.internalModel.getRecord();\n      }\n\n      return null;\n    }\n    /**\n       Triggers a fetch for the backing entity based on its `remoteType`\n       (see `remoteType` definitions per reference type).\n        Example\n        ```javascript\n       let userRef = store.getReference('user', 1);\n        // load user (via store.find)\n       userRef.load().then(...)\n       ```\n        @method load\n       @return {Promise<record>} the record for this RecordReference\n    */\n\n\n    load() {\n      if (this._id !== null) {\n        return this.store.findRecord(this.type, this._id);\n      }\n\n      throw new Error(`Unable to fetch record of type ${this.type} without an id`);\n    }\n    /**\n       Reloads the record if it is already loaded. If the record is not\n       loaded it will load the record via `store.findRecord`\n        Example\n        ```javascript\n       let userRef = store.getReference('user', 1);\n        // or trigger a reload\n       userRef.reload().then(...)\n       ```\n        @method reload\n       @return {Promise<record>} the record for this RecordReference\n    */\n\n\n    reload() {\n      var record = this.value();\n\n      if (record) {\n        return record.reload();\n      }\n\n      return this.load();\n    }\n\n  }\n\n  /**\n    @module @ember-data/store\n  */\n\n  /*\n    This file encapsulates the various states that a record can transition\n    through during its lifecycle.\n  */\n\n  /**\n    ### State\n\n    Each record has a `currentState` property that explicitly tracks what\n    state a record is in at any given time. For instance, if a record is\n    newly created and has not yet been sent to the adapter to be saved,\n    it would be in the `root.loaded.created.uncommitted` state.  If a\n    record has had local modifications made to it that are in the\n    process of being saved, the record would be in the\n    `root.loaded.updated.inFlight` state. (This state path will be\n    explained in more detail below.)\n\n    Events are sent by the record or its store to the record's\n    `currentState` property. How the state reacts to these events is\n    dependent on which state it is in. In some states, certain events\n    will be invalid and will cause an exception to be raised.\n\n    States are hierarchical and every state is a sub-state of the\n    `RootState`. For example, a record can be in the\n    `root.deleted.uncommitted` state then transitions into the\n    `root.deleted.inFlight` state. If a child state does not implement\n    an event handler, the state manager will attempt to invoke the event\n    on all parent states until the root state is reached. The state\n    hierarchy of a record is described in terms of a path string. You\n    can determine a record's current state by getting the state's\n    `stateName` property:\n\n    ```javascript\n    record.get('currentState.stateName');\n    //=> \"root.created.uncommitted\"\n     ```\n\n    The hierarchy of valid states that ship with ember data looks like\n    this:\n\n    ```text\n    * root\n      * deleted\n        * saved\n        * uncommitted\n        * inFlight\n      * empty\n      * loaded\n        * created\n          * uncommitted\n          * inFlight\n        * saved\n        * updated\n          * uncommitted\n          * inFlight\n      * loading\n    ```\n\n    The `Model` states are themselves stateless. What that means is\n    that, the hierarchical states that each of *those* points to is a\n    shared data structure. For performance reasons, instead of each\n    record getting its own copy of the hierarchy of states, each record\n    points to this global, immutable shared instance. How does a state\n    know which record it should be acting on? We pass the record\n    instance into the state's event handlers as the first argument.\n\n    The record passed as the first parameter is where you should stash\n    state about the record if needed; you should never store data on the state\n    object itself.\n\n    ### Events and Flags\n\n    A state may implement zero or more events and flags.\n\n    #### Events\n\n    Events are named functions that are invoked when sent to a record. The\n    record will first look for a method with the given name on the\n    current state. If no method is found, it will search the current\n    state's parent, and then its grandparent, and so on until reaching\n    the top of the hierarchy. If the root is reached without an event\n    handler being found, an exception will be raised. This can be very\n    helpful when debugging new features.\n\n    Here's an example implementation of a state with a `myEvent` event handler:\n\n    ```javascript\n    aState: State.create({\n      myEvent: function(manager, param) {\n        console.log(\"Received myEvent with\", param);\n      }\n    })\n    ```\n\n    To trigger this event:\n\n    ```javascript\n    record.send('myEvent', 'foo');\n    //=> \"Received myEvent with foo\"\n    ```\n\n    Note that an optional parameter can be sent to a record's `send()` method,\n    which will be passed as the second parameter to the event handler.\n\n    Events should transition to a different state if appropriate. This can be\n    done by calling the record's `transitionTo()` method with a path to the\n    desired state. The state manager will attempt to resolve the state path\n    relative to the current state. If no state is found at that path, it will\n    attempt to resolve it relative to the current state's parent, and then its\n    parent, and so on until the root is reached. For example, imagine a hierarchy\n    like this:\n\n        * created\n          * uncommitted <-- currentState\n          * inFlight\n        * updated\n          * inFlight\n\n    If we are currently in the `uncommitted` state, calling\n    `transitionTo('inFlight')` would transition to the `created.inFlight` state,\n    while calling `transitionTo('updated.inFlight')` would transition to\n    the `updated.inFlight` state.\n\n    Remember that *only events* should ever cause a state transition. You should\n    never call `transitionTo()` from outside a state's event handler. If you are\n    tempted to do so, create a new event and send that to the state manager.\n\n    #### Flags\n\n    Flags are Boolean values that can be used to introspect a record's current\n    state in a more user-friendly way than examining its state path. For example,\n    instead of doing this:\n\n    ```javascript\n    var statePath = record.get('stateManager.currentPath');\n    if (statePath === 'created.inFlight') {\n      doSomething();\n    }\n    ```\n\n    You can say:\n\n    ```javascript\n    if (record.get('isNew') && record.get('isSaving')) {\n      doSomething();\n    }\n    ```\n\n    If your state does not set a value for a given flag, the value will\n    be inherited from its parent (or the first place in the state hierarchy\n    where it is defined).\n\n    The current set of flags are defined below. If you want to add a new flag,\n    in addition to the area below, you will also need to declare it in the\n    `Model` class.\n\n\n     * [isEmpty](Model/properties/isEmpty?anchor=isEmpty)\n     * [isLoading](Model/properties/isLoading?anchor=isLoading)\n     * [isLoaded](Model/properties/isLoaded?anchor=isLoaded)\n     * [hasDirtyAttributes](Model/properties/hasDirtyAttributes?anchor=hasDirtyAttributes)\n     * [isSaving](Model/properties/isSaving?anchor=isSaving)\n     * [isDeleted](Model/properties/isDeleted?anchor=isDeleted)\n     * [isNew](Model/properties/isNew?anchor=isNew)\n     * [isValid](Model/properties/isValid?anchor=isValid)\n\n    @class RootState\n  */\n  function didSetProperty(internalModel, context) {\n    if (context.isDirty) {\n      internalModel.send('becomeDirty');\n    } else {\n      internalModel.send('propertyWasReset');\n    }\n  } // Implementation notes:\n  //\n  // Each state has a boolean value for all of the following flags:\n  //\n  // * isLoaded: The record has a populated `data` property. When a\n  //   record is loaded via `store.find`, `isLoaded` is false\n  //   until the adapter sets it. When a record is created locally,\n  //   its `isLoaded` property is always true.\n  // * isDirty: The record has local changes that have not yet been\n  //   saved by the adapter. This includes records that have been\n  //   created (but not yet saved) or deleted.\n  // * isSaving: The record has been committed, but\n  //   the adapter has not yet acknowledged that the changes have\n  //   been persisted to the backend.\n  // * isDeleted: The record was marked for deletion. When `isDeleted`\n  //   is true and `isDirty` is true, the record is deleted locally\n  //   but the deletion was not yet persisted. When `isSaving` is\n  //   true, the change is in-flight. When both `isDirty` and\n  //   `isSaving` are false, the change has persisted.\n  // * isNew: The record was created on the client and the adapter\n  //   did not yet report that it was successfully saved.\n  // * isValid: The adapter did not report any server-side validation\n  //   failures.\n  // The dirty state is a abstract state whose functionality is\n  // shared between the `created` and `updated` states.\n  //\n  // The deleted state shares the `isDirty` flag with the\n  // subclasses of `DirtyState`, but with a very different\n  // implementation.\n  //\n  // Dirty states have three child states:\n  //\n  // `uncommitted`: the store has not yet handed off the record\n  //   to be saved.\n  // `inFlight`: the store has handed off the record to be saved,\n  //   but the adapter has not yet acknowledged success.\n  // `invalid`: the record has invalid information and cannot be\n  //   sent to the adapter yet.\n\n\n  var DirtyState = {\n    initialState: 'uncommitted',\n    // FLAGS\n    isDirty: true,\n    // SUBSTATES\n    // When a record first becomes dirty, it is `uncommitted`.\n    // This means that there are local pending changes, but they\n    // have not yet begun to be saved, and are not invalid.\n    uncommitted: {\n      // EVENTS\n      didSetProperty,\n\n      //TODO(Igor) reloading now triggers a\n      //loadingData event, though it seems fine?\n      loadingData() {},\n\n      propertyWasReset(internalModel, name) {\n        if (!internalModel.hasChangedAttributes()) {\n          internalModel.send('rolledBack');\n        }\n      },\n\n      pushedData(internalModel) {\n        if (!internalModel.hasChangedAttributes()) {\n          internalModel.transitionTo('loaded.saved');\n        }\n      },\n\n      becomeDirty() {},\n\n      willCommit(internalModel) {\n        internalModel.transitionTo('inFlight');\n      },\n\n      reloadRecord(internalModel, {\n        resolve,\n        options\n      }) {\n        resolve(internalModel.store._reloadRecord(internalModel, options));\n      },\n\n      rolledBack(internalModel) {\n        internalModel.transitionTo('loaded.saved');\n        internalModel.triggerLater('rolledBack');\n      },\n\n      becameInvalid(internalModel) {\n        internalModel.transitionTo('invalid');\n      },\n\n      rollback(internalModel) {\n        internalModel.rollbackAttributes();\n        internalModel.triggerLater('ready');\n      }\n\n    },\n    // Once a record has been handed off to the adapter to be\n    // saved, it is in the 'in flight' state. Changes to the\n    // record cannot be made during this window.\n    inFlight: {\n      // FLAGS\n      isSaving: true,\n      // EVENTS\n      didSetProperty,\n\n      becomeDirty() {},\n\n      pushedData() {},\n\n      unloadRecord: assertAgainstUnloadRecord,\n\n      // TODO: More robust semantics around save-while-in-flight\n      willCommit() {},\n\n      didCommit(internalModel) {\n        internalModel.transitionTo('saved');\n        internalModel.send('invokeLifecycleCallbacks', this.dirtyType);\n      },\n\n      rolledBack(internalModel) {\n        internalModel.triggerLater('rolledBack');\n      },\n\n      becameInvalid(internalModel) {\n        internalModel.transitionTo('invalid');\n        internalModel.send('invokeLifecycleCallbacks');\n      },\n\n      becameError(internalModel) {\n        internalModel.transitionTo('uncommitted');\n        internalModel.triggerLater('becameError', internalModel);\n      }\n\n    },\n    // A record is in the `invalid` if the adapter has indicated\n    // the the record failed server-side invalidations.\n    invalid: {\n      // FLAGS\n      isValid: false,\n\n      // EVENTS\n      deleteRecord(internalModel) {\n        internalModel.transitionTo('deleted.uncommitted');\n      },\n\n      didSetProperty(internalModel, context) {\n        internalModel.removeErrorMessageFromAttribute(context.name);\n        didSetProperty(internalModel, context);\n\n        if (!internalModel.hasErrors()) {\n          this.becameValid(internalModel);\n        }\n      },\n\n      becameInvalid() {},\n\n      becomeDirty() {},\n\n      pushedData() {},\n\n      willCommit(internalModel) {\n        internalModel.clearErrorMessages();\n        internalModel.transitionTo('inFlight');\n      },\n\n      rolledBack(internalModel) {\n        internalModel.clearErrorMessages();\n        internalModel.transitionTo('loaded.saved');\n        internalModel.triggerLater('ready');\n      },\n\n      becameValid(internalModel) {\n        internalModel.transitionTo('uncommitted');\n      },\n\n      invokeLifecycleCallbacks(internalModel) {\n        internalModel.triggerLater('becameInvalid', internalModel);\n      }\n\n    }\n  }; // The created and updated states are created outside the state\n  // chart so we can reopen their substates and add mixins as\n  // necessary.\n\n  function deepClone(object) {\n    var clone = {};\n    var value;\n\n    for (var prop in object) {\n      value = object[prop];\n\n      if (value && typeof value === 'object') {\n        clone[prop] = deepClone(value);\n      } else {\n        clone[prop] = value;\n      }\n    }\n\n    return clone;\n  }\n\n  function mixin(original, hash) {\n    for (var prop in hash) {\n      original[prop] = hash[prop];\n    }\n\n    return original;\n  }\n\n  function dirtyState(options) {\n    var newState = deepClone(DirtyState);\n    return mixin(newState, options);\n  }\n\n  var createdState = dirtyState({\n    dirtyType: 'created',\n    // FLAGS\n    isNew: true,\n\n    setup(internalModel) {\n      internalModel.updateRecordArrays();\n    }\n\n  });\n\n  createdState.invalid.rolledBack = function (internalModel) {\n    internalModel.transitionTo('deleted.saved');\n    internalModel.triggerLater('rolledBack');\n  };\n\n  createdState.uncommitted.rolledBack = function (internalModel) {\n    internalModel.transitionTo('deleted.saved');\n    internalModel.triggerLater('rolledBack');\n  };\n\n  var updatedState = dirtyState({\n    dirtyType: 'updated'\n  });\n\n  function createdStateDeleteRecord(internalModel) {\n    internalModel.transitionTo('deleted.saved');\n    internalModel.send('invokeLifecycleCallbacks');\n  }\n\n  createdState.uncommitted.deleteRecord = createdStateDeleteRecord;\n  createdState.invalid.deleteRecord = createdStateDeleteRecord;\n\n  createdState.uncommitted.rollback = function (internalModel) {\n    DirtyState.uncommitted.rollback.apply(this, arguments);\n    internalModel.transitionTo('deleted.saved');\n  };\n\n  createdState.uncommitted.pushedData = function (internalModel) {\n    internalModel.transitionTo('loaded.updated.uncommitted');\n    internalModel.triggerLater('didLoad');\n  };\n\n  createdState.uncommitted.propertyWasReset = function () {};\n\n  function assertAgainstUnloadRecord(internalModel) {\n    ( Ember.assert('You can only unload a record which is not inFlight. `' + internalModel + '`', false));\n  }\n\n  updatedState.invalid.becameValid = function (internalModel) {\n    // we're eagerly transition into the loaded.saved state, even though we could\n    // be still dirty; but the setup hook of the loaded.saved state checks for\n    // dirty attributes and transitions into the corresponding dirty state\n    internalModel.transitionTo('loaded.saved');\n  };\n\n  updatedState.inFlight.unloadRecord = assertAgainstUnloadRecord;\n\n  updatedState.uncommitted.deleteRecord = function (internalModel) {\n    internalModel.transitionTo('deleted.uncommitted');\n  };\n\n  updatedState.invalid.rolledBack = function (internalModel) {\n    internalModel.clearErrorMessages();\n    internalModel.transitionTo('loaded.saved');\n    internalModel.triggerLater('rolledBack');\n  };\n\n  var RootState = {\n    // FLAGS\n    isEmpty: false,\n    isLoading: false,\n    isLoaded: false,\n    isDirty: false,\n    isSaving: false,\n    isDeleted: false,\n    isNew: false,\n    isValid: true,\n\n    // DEFAULT EVENTS\n    // Trying to roll back if you're not in the dirty state\n    // doesn't change your state. For example, if you're in the\n    // in-flight state, rolling back the record doesn't move\n    // you out of the in-flight state.\n    rolledBack() {},\n\n    unloadRecord(internalModel) {},\n\n    propertyWasReset() {},\n\n    // SUBSTATES\n    // A record begins its lifecycle in the `empty` state.\n    // If its data will come from the adapter, it will\n    // transition into the `loading` state. Otherwise, if\n    // the record is being created on the client, it will\n    // transition into the `created` state.\n    empty: {\n      isEmpty: true,\n\n      // EVENTS\n      loadingData(internalModel, promise) {\n        {\n          internalModel._promiseProxy = promise;\n        }\n\n        internalModel.transitionTo('loading');\n      },\n\n      loadedData(internalModel) {\n        internalModel.transitionTo('loaded.created.uncommitted');\n        internalModel.triggerLater('ready');\n      },\n\n      pushedData(internalModel) {\n        internalModel.transitionTo('loaded.saved');\n        internalModel.triggerLater('didLoad');\n        internalModel.triggerLater('ready');\n      },\n\n      // Record is already in an empty state, triggering transition to empty here\n      // produce an error.\n      notFound() {}\n\n    },\n    // A record enters this state when the store asks\n    // the adapter for its data. It remains in this state\n    // until the adapter provides the requested data.\n    //\n    // Usually, this process is asynchronous, using an\n    // XHR to retrieve the data.\n    loading: {\n      // FLAGS\n      isLoading: true,\n\n      exit(internalModel) {\n        internalModel._promiseProxy = null;\n      },\n\n      loadingData() {},\n\n      // EVENTS\n      pushedData(internalModel) {\n        internalModel.transitionTo('loaded.saved');\n        internalModel.triggerLater('didLoad');\n        internalModel.triggerLater('ready'); //TODO this seems out of place here\n\n        internalModel.didCleanError();\n      },\n\n      becameError(internalModel) {\n        internalModel.triggerLater('becameError', internalModel);\n      },\n\n      notFound(internalModel) {\n        internalModel.transitionTo('empty');\n      }\n\n    },\n    // A record enters this state when its data is populated.\n    // Most of a record's lifecycle is spent inside substates\n    // of the `loaded` state.\n    loaded: {\n      initialState: 'saved',\n      // FLAGS\n      isLoaded: true,\n\n      //TODO(Igor) Reloading now triggers a loadingData event,\n      //but it should be ok?\n      loadingData() {},\n\n      // SUBSTATES\n      // If there are no local changes to a record, it remains\n      // in the `saved` state.\n      saved: {\n        setup(internalModel) {\n          if (internalModel.hasChangedAttributes()) {\n            internalModel.adapterDidDirty();\n          }\n        },\n\n        // EVENTS\n        didSetProperty,\n\n        pushedData() {},\n\n        becomeDirty(internalModel) {\n          internalModel.transitionTo('updated.uncommitted');\n        },\n\n        willCommit(internalModel) {\n          internalModel.transitionTo('updated.inFlight');\n        },\n\n        reloadRecord(internalModel, {\n          resolve,\n          options\n        }) {\n          {\n            resolve(internalModel.store._reloadRecord(internalModel, options));\n          }\n        },\n\n        deleteRecord(internalModel) {\n          internalModel.transitionTo('deleted.uncommitted');\n        },\n\n        unloadRecord(internalModel) {},\n\n        didCommit() {},\n\n        // loaded.saved.notFound would be triggered by a failed\n        // `reload()` on an unchanged record\n        notFound() {}\n\n      },\n      // A record is in this state after it has been locally\n      // created but before the adapter has indicated that\n      // it has been saved.\n      created: createdState,\n      // A record is in this state if it has already been\n      // saved to the server, but there are new local changes\n      // that have not yet been saved.\n      updated: updatedState\n    },\n    // A record is in this state if it was deleted from the store.\n    deleted: {\n      initialState: 'uncommitted',\n      dirtyType: 'deleted',\n      // FLAGS\n      isDeleted: true,\n      isLoaded: true,\n      isDirty: true,\n\n      // TRANSITIONS\n      setup(internalModel) {\n        internalModel.updateRecordArrays();\n      },\n\n      // SUBSTATES\n      // When a record is deleted, it enters the `start`\n      // state. It will exit this state when the record\n      // starts to commit.\n      uncommitted: {\n        // EVENTS\n        willCommit(internalModel) {\n          internalModel.transitionTo('inFlight');\n        },\n\n        rollback(internalModel) {\n          internalModel.rollbackAttributes();\n          internalModel.triggerLater('ready');\n        },\n\n        pushedData() {},\n\n        becomeDirty() {},\n\n        deleteRecord() {},\n\n        rolledBack(internalModel) {\n          internalModel.transitionTo('loaded.saved');\n          internalModel.triggerLater('ready');\n          internalModel.triggerLater('rolledBack');\n        }\n\n      },\n      // After a record starts committing, but\n      // before the adapter indicates that the deletion\n      // has saved to the server, a record is in the\n      // `inFlight` substate of `deleted`.\n      inFlight: {\n        // FLAGS\n        isSaving: true,\n        // EVENTS\n        unloadRecord: assertAgainstUnloadRecord,\n\n        // TODO: More robust semantics around save-while-in-flight\n        willCommit() {},\n\n        didCommit(internalModel) {\n          internalModel.transitionTo('saved');\n          internalModel.send('invokeLifecycleCallbacks');\n        },\n\n        becameError(internalModel) {\n          internalModel.transitionTo('uncommitted');\n          internalModel.triggerLater('becameError', internalModel);\n        },\n\n        becameInvalid(internalModel) {\n          internalModel.transitionTo('invalid');\n          internalModel.triggerLater('becameInvalid', internalModel);\n        }\n\n      },\n      // Once the adapter indicates that the deletion has\n      // been saved, the record enters the `saved` substate\n      // of `deleted`.\n      saved: {\n        // FLAGS\n        isDirty: false,\n\n        setup(internalModel) {\n          internalModel.removeFromInverseRelationships();\n        },\n\n        invokeLifecycleCallbacks(internalModel) {\n          internalModel.triggerLater('didDelete', internalModel);\n          internalModel.triggerLater('didCommit', internalModel);\n        },\n\n        willCommit() {},\n\n        didCommit() {},\n\n        pushedData() {}\n\n      },\n      invalid: {\n        isValid: false,\n\n        didSetProperty(internalModel, context) {\n          internalModel.removeErrorMessageFromAttribute(context.name);\n          didSetProperty(internalModel, context);\n\n          if (!internalModel.hasErrors()) {\n            this.becameValid(internalModel);\n          }\n        },\n\n        becameInvalid() {},\n\n        becomeDirty() {},\n\n        deleteRecord() {},\n\n        willCommit() {},\n\n        rolledBack(internalModel) {\n          internalModel.clearErrorMessages();\n          internalModel.transitionTo('loaded.saved');\n          internalModel.triggerLater('ready');\n        },\n\n        becameValid(internalModel) {\n          internalModel.transitionTo('uncommitted');\n        }\n\n      }\n    },\n\n    invokeLifecycleCallbacks(internalModel, dirtyType) {\n      if (dirtyType === 'created') {\n        internalModel.triggerLater('didCreate', internalModel);\n      } else {\n        internalModel.triggerLater('didUpdate', internalModel);\n      }\n\n      internalModel.triggerLater('didCommit', internalModel);\n    }\n\n  };\n\n  function wireState(object, parent, name) {\n    // TODO: Use Object.create and copy instead\n    object = mixin(parent ? Object.create(parent) : {}, object);\n    object.parentState = parent;\n    object.stateName = name;\n\n    for (var prop in object) {\n      if (!Object.prototype.hasOwnProperty.call(object, prop) || prop === 'parentState' || prop === 'stateName') {\n        continue;\n      }\n\n      if (typeof object[prop] === 'object') {\n        object[prop] = wireState(object[prop], object, name + '.' + prop);\n      }\n    }\n\n    return object;\n  }\n\n  var RootState$1 = wireState(RootState, null, 'root');\n\n  /**\n    @module @ember-data/store\n  */\n  // once the presentation logic is moved into the Model package we can make\n  // eliminate these lossy and redundant helpers\n  function relationshipsFor$1(instance) {\n    var recordData = recordDataFor(instance);\n    return recordData._relationships;\n  }\n\n  function relationshipStateFor$1(instance, propertyName) {\n    return relationshipsFor$1(instance).get(propertyName);\n  }\n\n  var {\n    hasOwnProperty\n  } = Object.prototype;\n  var ManyArray;\n  var PromiseBelongsTo;\n  var PromiseManyArray;\n  var _found = false;\n\n  var _getModelPackage;\n\n  {\n    _getModelPackage = function () {\n      if (!_found) {\n        var modelPackage = require('@ember-data/model/-private');\n\n        ({\n          ManyArray,\n          PromiseBelongsTo,\n          PromiseManyArray\n        } = modelPackage);\n\n        if (ManyArray && PromiseBelongsTo && PromiseManyArray) {\n          _found = true;\n        }\n      }\n\n      return _found;\n    };\n  } // TODO this should be integrated with the code removal so we can use it together with the if condition\n\n  /*\n    The TransitionChainMap caches the `state.enters`, `state.setups`, and final state reached\n    when transitioning from one state to another, so that future transitions can replay the\n    transition without needing to walk the state tree, collect these hook calls and determine\n     the state to transition into.\n\n     A future optimization would be to build a single chained method out of the collected enters\n     and setups. It may also be faster to do a two level cache (from: { to }) instead of caching based\n     on a key that adds the two together.\n   */\n  var TransitionChainMap = Object.create(null);\n\n  var _extractPivotNameCache = Object.create(null);\n\n  var _splitOnDotCache = Object.create(null);\n\n  function splitOnDot(name) {\n    return _splitOnDotCache[name] || (_splitOnDotCache[name] = name.split('.'));\n  }\n\n  function extractPivotName(name) {\n    return _extractPivotNameCache[name] || (_extractPivotNameCache[name] = splitOnDot(name)[0]);\n  }\n  /*\n    `InternalModel` is the Model class that we use internally inside Ember Data to represent models.\n    Internal ED methods should only deal with `InternalModel` objects. It is a fast, plain Javascript class.\n\n    We expose `Model` to application code, by materializing a `Model` from `InternalModel` lazily, as\n    a performance optimization.\n\n    `InternalModel` should never be exposed to application code. At the boundaries of the system, in places\n    like `find`, `push`, etc. we convert between Models and InternalModels.\n\n    We need to make sure that the properties from `InternalModel` are correctly exposed/proxied on `Model`\n    if they are needed.\n\n    @private\n    @class InternalModel\n  */\n\n\n  class InternalModel {\n    // Not typed yet\n    // The previous ManyArrays for this relationship which will be destroyed when\n    // we create a new ManyArray, but in the interim the retained version will be\n    // updated if inverse internal models are unloaded.\n    constructor(store, identifier) {\n      this.store = store;\n      this.identifier = identifier;\n      this._id = void 0;\n      this._tag = 0;\n      this.modelName = void 0;\n      this.clientId = void 0;\n      this.__recordData = void 0;\n      this._isDestroyed = void 0;\n      this.isError = void 0;\n      this._pendingRecordArrayManagerFlush = void 0;\n      this._isDematerializing = void 0;\n      this.isReloading = void 0;\n      this._doNotDestroy = void 0;\n      this.isDestroying = void 0;\n      this._promiseProxy = void 0;\n      this._record = void 0;\n      this._scheduledDestroy = void 0;\n      this._modelClass = void 0;\n      this.__deferredTriggers = void 0;\n      this.__recordArrays = void 0;\n      this._references = void 0;\n      this._recordReference = void 0;\n      this._manyArrayCache = Object.create(null);\n      this._retainedManyArrayCache = Object.create(null);\n      this._relationshipPromisesCache = Object.create(null);\n      this._relationshipProxyCache = Object.create(null);\n      this.currentState = void 0;\n      this.error = void 0;\n\n      {\n        _getModelPackage();\n      }\n\n      this._id = identifier.id;\n      this.modelName = identifier.type;\n      this.clientId = identifier.lid;\n      this.__recordData = null; // this ensure ordered set can quickly identify this as unique\n\n      this[Ember.GUID_KEY] = identifier.lid;\n      this._promiseProxy = null;\n      this._record = null;\n      this._isDestroyed = false;\n      this.isError = false;\n      this._pendingRecordArrayManagerFlush = false; // used by the recordArrayManager\n      // During dematerialization we don't want to rematerialize the record.  The\n      // reason this might happen is that dematerialization removes records from\n      // record arrays,  and Ember arrays will always `objectAt(0)` and\n      // `objectAt(len - 1)` to test whether or not `firstObject` or `lastObject`\n      // have changed.\n\n      this._isDematerializing = false;\n      this._scheduledDestroy = null;\n      this.resetRecord(); // caches for lazy getters\n\n      this._modelClass = null;\n      this.__deferredTriggers = null;\n      this.__recordArrays = null;\n      this._references = null;\n      this._recordReference = null;\n    }\n\n    get id() {\n      return this.identifier.id;\n    }\n\n    set id(value) {\n      if (value !== this._id) {\n        var newIdentifier = {\n          type: this.identifier.type,\n          lid: this.identifier.lid,\n          id: value\n        };\n        identifierCacheFor(this.store).updateRecordIdentifier(this.identifier, newIdentifier);\n        Ember.set(this, '_tag', this._tag + 1); // TODO Show deprecation for private api\n      }\n    }\n\n    get modelClass() {\n      if (this.store.modelFor) {\n        return this._modelClass || (this._modelClass = this.store.modelFor(this.modelName));\n      }\n    }\n\n    get type() {\n      return this.modelClass;\n    }\n\n    get recordReference() {\n      if (this._recordReference === null) {\n        this._recordReference = new RecordReference(this.store, this);\n      }\n\n      return this._recordReference;\n    }\n\n    get _recordData() {\n      if (this.__recordData === null) {\n        var recordData = this.store._createRecordData(this.identifier);\n\n        this._recordData = recordData;\n        return recordData;\n      }\n\n      return this.__recordData;\n    }\n\n    set _recordData(newValue) {\n      this.__recordData = newValue;\n    }\n\n    get _recordArrays() {\n      if (this.__recordArrays === null) {\n        this.__recordArrays = new Set();\n      }\n\n      return this.__recordArrays;\n    }\n\n    get references() {\n      if (this._references === null) {\n        this._references = Object.create(null);\n      }\n\n      return this._references;\n    }\n\n    get _deferredTriggers() {\n      if (this.__deferredTriggers === null) {\n        this.__deferredTriggers = [];\n      }\n\n      return this.__deferredTriggers;\n    }\n\n    isHiddenFromRecordArrays() {\n      // During dematerialization we don't want to rematerialize the record.\n      // recordWasDeleted can cause other records to rematerialize because it\n      // removes the internal model from the array and Ember arrays will always\n      // `objectAt(0)` and `objectAt(len -1)` to check whether `firstObject` or\n      // `lastObject` have changed.  When this happens we don't want those\n      // models to rematerialize their records.\n      // eager checks to avoid instantiating record data if we are empty or loading\n      if (this.isEmpty()) {\n        return true;\n      }\n\n      var isRecordFullyDeleted;\n\n      {\n        isRecordFullyDeleted = this.currentState.stateName === 'root.deleted.saved';\n      }\n\n      return this._isDematerializing || this.hasScheduledDestroy() || this.isDestroyed || isRecordFullyDeleted;\n    }\n\n    _isRecordFullyDeleted() {\n      {\n        // assert here\n        return false;\n      }\n    }\n\n    isRecordInUse() {\n      var record = this._record;\n      return record && !(record.get('isDestroyed') || record.get('isDestroying'));\n    }\n\n    isEmpty() {\n      return this.currentState.isEmpty;\n    }\n\n    isLoading() {\n      return this.currentState.isLoading;\n    }\n\n    isLoaded() {\n      return this.currentState.isLoaded;\n    }\n\n    hasDirtyAttributes() {\n      return this.currentState.hasDirtyAttributes;\n    }\n\n    isSaving() {\n      return this.currentState.isSaving;\n    }\n\n    isDeleted() {\n      {\n        return this.currentState.isDeleted;\n      }\n    }\n\n    isNew() {\n      {\n        return this.currentState.isNew;\n      }\n    }\n\n    isValid() {\n      {\n        return this.currentState.isValid;\n      }\n    }\n\n    dirtyType() {\n      return this.currentState.dirtyType;\n    }\n\n    getRecord(properties) {\n      if (!this._record && !this._isDematerializing) {\n        var {\n          store: _store\n        } = this;\n\n        {\n          {\n            // lookupFactory should really return an object that creates\n            // instances with the injections applied\n            var createOptions = {\n              store: _store,\n              _internalModel: this,\n              currentState: this.currentState\n            };\n\n            {\n              createOptions.isError = this.isError;\n              createOptions.adapterError = this.error;\n            }\n\n            if (properties !== undefined) {\n              ( !(typeof properties === 'object' && properties !== null) && Ember.assert(`You passed '${properties}' as properties for record creation instead of an object.`, typeof properties === 'object' && properties !== null));\n\n              if ('id' in properties) {\n                var id = coerceId(properties.id);\n\n                if (id !== null) {\n                  this.setId(id);\n                }\n              } // convert relationship Records to RecordDatas before passing to RecordData\n\n\n              var defs = _store._relationshipsDefinitionFor(this.modelName);\n\n              if (defs !== null) {\n                var keys = Object.keys(properties);\n                var relationshipValue;\n\n                for (var i = 0; i < keys.length; i++) {\n                  var prop = keys[i];\n                  var def = defs[prop];\n\n                  if (def !== undefined) {\n                    if (def.kind === 'hasMany') {\n                      {\n                        assertRecordsPassedToHasMany(properties[prop]);\n                      }\n\n                      relationshipValue = extractRecordDatasFromRecords(properties[prop]);\n                    } else {\n                      relationshipValue = extractRecordDataFromRecord(properties[prop]);\n                    }\n\n                    properties[prop] = relationshipValue;\n                  }\n                }\n              }\n            }\n\n            var additionalCreateOptions = this._recordData._initRecordCreateOptions(properties);\n\n            Ember.assign(createOptions, additionalCreateOptions); // ensure that `getOwner(this)` works inside a model instance\n\n            Ember.setOwner(createOptions, Ember.getOwner(_store));\n            this._record = _store._modelFactoryFor(this.modelName).create(createOptions);\n            setRecordIdentifier(this._record, this.identifier);\n          }\n        }\n\n        this._triggerDeferredTriggers();\n      }\n\n      return this._record;\n    }\n\n    resetRecord() {\n      this._record = null;\n      this.isReloading = false;\n      this.error = null;\n      this.currentState = RootState$1.empty;\n    }\n\n    dematerializeRecord() {\n      this._isDematerializing = true; // TODO IGOR add a test that fails when this is missing, something that involves canceliing a destroy\n      // and the destroy not happening, and then later on trying to destroy\n\n      this._doNotDestroy = false;\n\n      if (this._record) {\n        {\n          this._record.destroy();\n        }\n\n        Object.keys(this._relationshipProxyCache).forEach(key => {\n          if (this._relationshipProxyCache[key].destroy) {\n            this._relationshipProxyCache[key].destroy();\n          }\n\n          delete this._relationshipProxyCache[key];\n        });\n        Object.keys(this._manyArrayCache).forEach(key => {\n          var manyArray = this._retainedManyArrayCache[key] = this._manyArrayCache[key];\n          delete this._manyArrayCache[key];\n\n          if (manyArray && !manyArray._inverseIsAsync) {\n            /*\n              If the manyArray is for a sync relationship, we should clear it\n                to preserve the semantics of client-side delete.\n               It is likely in this case instead of retaining we should destroy\n                - @runspired\n            */\n            manyArray.clear();\n          }\n        });\n      } // move to an empty never-loaded state\n\n\n      this._recordData.unloadRecord();\n\n      this.resetRecord();\n      this.updateRecordArrays();\n    }\n\n    deleteRecord() {\n\n      this.send('deleteRecord');\n    }\n\n    save(options) {\n      var promiseLabel = 'DS: Model#save ' + this;\n      var resolver = Ember.RSVP.defer(promiseLabel);\n\n      {\n        this.store.scheduleSave(this, resolver, options);\n        return resolver.promise;\n      }\n    }\n\n    startedReloading() {\n      this.isReloading = true;\n\n      if (this.hasRecord) {\n        Ember.set(this._record, 'isReloading', true);\n      }\n    }\n\n    finishedReloading() {\n      this.isReloading = false;\n\n      if (this.hasRecord) {\n        Ember.set(this._record, 'isReloading', false);\n      }\n    }\n\n    reload(options) {\n      {\n        this.startedReloading();\n\n        var _internalModel = this;\n\n        var promiseLabel = 'DS: Model#reload of ' + this;\n        return new Ember.RSVP.Promise(function (resolve) {\n          _internalModel.send('reloadRecord', {\n            resolve,\n            options\n          });\n        }, promiseLabel).then(function () {\n          _internalModel.didCleanError();\n\n          return _internalModel;\n        }, function (error) {\n          _internalModel.didError(error);\n\n          throw error;\n        }, 'DS: Model#reload complete, update flags').finally(function () {\n          _internalModel.finishedReloading();\n        });\n      }\n    }\n    /*\n      Unload the record for this internal model. This will cause the record to be\n      destroyed and freed up for garbage collection. It will also do a check\n      for cleaning up internal models.\n       This check is performed by first computing the set of related internal\n      models. If all records in this set are unloaded, then the entire set is\n      destroyed. Otherwise, nothing in the set is destroyed.\n       This means that this internal model will be freed up for garbage collection\n      once all models that refer to it via some relationship are also unloaded.\n    */\n\n\n    unloadRecord() {\n      if (this.isDestroyed) {\n        return;\n      }\n\n      this.send('unloadRecord');\n      this.dematerializeRecord();\n\n      if (this._scheduledDestroy === null) {\n        this._scheduledDestroy = Ember.run.backburner.schedule('destroy', this, '_checkForOrphanedInternalModels');\n      }\n    }\n\n    hasScheduledDestroy() {\n      return !!this._scheduledDestroy;\n    }\n\n    cancelDestroy() {\n      ( !(!this.isDestroyed) && Ember.assert(`You cannot cancel the destruction of an InternalModel once it has already been destroyed`, !this.isDestroyed));\n      this._doNotDestroy = true;\n      this._isDematerializing = false;\n      Ember.run.cancel(this._scheduledDestroy);\n      this._scheduledDestroy = null;\n    } // typically, we prefer to async destroy this lets us batch cleanup work.\n    // Unfortunately, some scenarios where that is not possible. Such as:\n    //\n    // ```js\n    // const record = store.find(‘record’, 1);\n    // record.unloadRecord();\n    // store.createRecord(‘record’, 1);\n    // ```\n    //\n    // In those scenarios, we make that model's cleanup work, sync.\n    //\n\n\n    destroySync() {\n      if (this._isDematerializing) {\n        this.cancelDestroy();\n      }\n\n      this._checkForOrphanedInternalModels();\n\n      if (this.isDestroyed || this.isDestroying) {\n        return;\n      } // just in-case we are not one of the orphaned, we should still\n      // still destroy ourselves\n\n\n      this.destroy();\n    }\n\n    _checkForOrphanedInternalModels() {\n      this._isDematerializing = false;\n      this._scheduledDestroy = null;\n\n      if (this.isDestroyed) {\n        return;\n      }\n    }\n\n    eachRelationship(callback, binding) {\n      return this.modelClass.eachRelationship(callback, binding);\n    }\n\n    _findBelongsTo(key, resource, relationshipMeta, options) {\n      // TODO @runspired follow up if parent isNew then we should not be attempting load here\n      return this.store._findBelongsToByJsonApiResource(resource, this, relationshipMeta, options).then(internalModel => handleCompletedRelationshipRequest(this, key, resource._relationship, internalModel, null), e => handleCompletedRelationshipRequest(this, key, resource._relationship, null, e));\n    }\n\n    getBelongsTo(key, options) {\n      var resource = this._recordData.getBelongsTo(key);\n\n      var identifier = resource && resource.data ? identifierCacheFor(this.store).getOrCreateRecordIdentifier(resource.data) : null;\n\n      var relationshipMeta = this.store._relationshipMetaFor(this.modelName, null, key);\n\n      var store = this.store;\n      var parentInternalModel = this;\n      var async = relationshipMeta.options.async;\n      var isAsync = typeof async === 'undefined' ? true : async;\n      var _belongsToState = {\n        key,\n        store,\n        originatingInternalModel: this,\n        modelName: relationshipMeta.type\n      };\n\n      if (isAsync) {\n        var internalModel = identifier !== null ? store._internalModelForResource(identifier) : null;\n\n        if (resource._relationship.hasFailedLoadAttempt) {\n          return this._relationshipProxyCache[key];\n        }\n\n        var promise = this._findBelongsTo(key, resource, relationshipMeta, options);\n\n        return this._updatePromiseProxyFor('belongsTo', key, {\n          promise,\n          content: internalModel ? internalModel.getRecord() : null,\n          _belongsToState\n        });\n      } else {\n        if (identifier === null) {\n          return null;\n        } else {\n          var _internalModel2 = store._internalModelForResource(identifier);\n\n          var toReturn = _internalModel2.getRecord();\n\n          ( !(toReturn === null || !toReturn.get('isEmpty')) && Ember.assert(\"You looked up the '\" + key + \"' relationship on a '\" + parentInternalModel.modelName + \"' with id \" + parentInternalModel.id + ' but some of the associated records were not loaded. Either make sure they are all loaded together with the parent record, or specify that the relationship is async (`belongsTo({ async: true })`)', toReturn === null || !toReturn.get('isEmpty')));\n          return toReturn;\n        }\n      }\n    } // TODO Igor consider getting rid of initial state\n\n\n    getManyArray(key, isAsync = false) {\n      var relationshipMeta = this.store._relationshipMetaFor(this.modelName, null, key);\n\n      var jsonApi = this._recordData.getHasMany(key);\n\n      var manyArray = this._manyArrayCache[key];\n      ( !(!manyArray || !this._retainedManyArrayCache[key]) && Ember.assert(`Error: relationship ${this.modelName}:${key} has both many array and retained many array`, !manyArray || !this._retainedManyArrayCache[key]));\n\n      if (!manyArray) {\n        var initialState = this.store._getHasManyByJsonApiResource(jsonApi); // TODO move this to a public api\n\n\n        var inverseIsAsync = jsonApi._relationship ? jsonApi._relationship._inverseIsAsync() : false;\n        manyArray = ManyArray.create({\n          store: this.store,\n          type: this.store.modelFor(relationshipMeta.type),\n          recordData: this._recordData,\n          meta: jsonApi.meta,\n          links:  jsonApi.links ,\n          key,\n          isPolymorphic: relationshipMeta.options.polymorphic,\n          initialState: initialState.slice(),\n          _inverseIsAsync: inverseIsAsync,\n          internalModel: this,\n          isLoaded: !isAsync\n        });\n        this._manyArrayCache[key] = manyArray;\n      }\n\n      if (this._retainedManyArrayCache[key]) {\n        this._retainedManyArrayCache[key].destroy();\n\n        delete this._retainedManyArrayCache[key];\n      }\n\n      return manyArray;\n    }\n\n    fetchAsyncHasMany(key, relationshipMeta, jsonApi, manyArray, options) {\n      // TODO @runspired follow up if parent isNew then we should not be attempting load here\n      var loadingPromise = this._relationshipPromisesCache[key];\n\n      if (loadingPromise) {\n        return loadingPromise;\n      }\n\n      loadingPromise = this.store._findHasManyByJsonApiResource(jsonApi, this, relationshipMeta, options).then(() => {\n        // TODO why don't we do this in the store method\n        manyArray.retrieveLatest();\n        manyArray.set('isLoaded', true);\n        return manyArray;\n      }).then(manyArray => handleCompletedRelationshipRequest(this, key, jsonApi._relationship, manyArray, null), e => handleCompletedRelationshipRequest(this, key, jsonApi._relationship, null, e));\n      this._relationshipPromisesCache[key] = loadingPromise;\n      return loadingPromise;\n    }\n\n    getHasMany(key, options) {\n      var jsonApi = this._recordData.getHasMany(key);\n\n      var relationshipMeta = this.store._relationshipMetaFor(this.modelName, null, key);\n\n      var async = relationshipMeta.options.async;\n      var isAsync = typeof async === 'undefined' ? true : async;\n      var manyArray = this.getManyArray(key, isAsync);\n\n      if (isAsync) {\n        if (jsonApi._relationship.hasFailedLoadAttempt) {\n          return this._relationshipProxyCache[key];\n        }\n\n        var promise = this.fetchAsyncHasMany(key, relationshipMeta, jsonApi, manyArray, options);\n        return this._updatePromiseProxyFor('hasMany', key, {\n          promise,\n          content: manyArray\n        });\n      } else {\n        ( !(!manyArray.anyUnloaded()) && Ember.assert(`You looked up the '${key}' relationship on a '${this.type.modelName}' with id ${this.id} but some of the associated records were not loaded. Either make sure they are all loaded together with the parent record, or specify that the relationship is async ('hasMany({ async: true })')`, !manyArray.anyUnloaded()));\n        return manyArray;\n      }\n    }\n\n    _updatePromiseProxyFor(kind, key, args) {\n      var promiseProxy = this._relationshipProxyCache[key];\n\n      if (promiseProxy) {\n        if (args.content !== undefined) {\n          // this usage of `any` can be removed when `@types/ember_object` proxy allows `null` for content\n          promiseProxy.set('content', args.content);\n        }\n\n        promiseProxy.set('promise', args.promise);\n      } else {\n        var klass = kind === 'hasMany' ? PromiseManyArray : PromiseBelongsTo; // this usage of `any` can be removed when `@types/ember_object` proxy allows `null` for content\n\n        this._relationshipProxyCache[key] = klass.create(args);\n      }\n\n      return this._relationshipProxyCache[key];\n    }\n\n    reloadHasMany(key, options) {\n      var loadingPromise = this._relationshipPromisesCache[key];\n\n      if (loadingPromise) {\n        return loadingPromise;\n      }\n\n      var jsonApi = this._recordData.getHasMany(key); // TODO move this to a public api\n\n\n      if (jsonApi._relationship) {\n        jsonApi._relationship.setHasFailedLoadAttempt(false);\n\n        jsonApi._relationship.setShouldForceReload(true);\n      }\n\n      var relationshipMeta = this.store._relationshipMetaFor(this.modelName, null, key);\n\n      var manyArray = this.getManyArray(key);\n      var promise = this.fetchAsyncHasMany(key, relationshipMeta, jsonApi, manyArray, options);\n\n      if (this._relationshipProxyCache[key]) {\n        return this._updatePromiseProxyFor('hasMany', key, {\n          promise\n        });\n      }\n\n      return promise;\n    }\n\n    reloadBelongsTo(key, options) {\n      var loadingPromise = this._relationshipPromisesCache[key];\n\n      if (loadingPromise) {\n        return loadingPromise;\n      }\n\n      var resource = this._recordData.getBelongsTo(key); // TODO move this to a public api\n\n\n      if (resource._relationship) {\n        resource._relationship.setHasFailedLoadAttempt(false);\n\n        resource._relationship.setShouldForceReload(true);\n      }\n\n      var relationshipMeta = this.store._relationshipMetaFor(this.modelName, null, key);\n\n      var promise = this._findBelongsTo(key, resource, relationshipMeta, options);\n\n      if (this._relationshipProxyCache[key]) {\n        return this._updatePromiseProxyFor('belongsTo', key, {\n          promise\n        });\n      }\n\n      return promise;\n    }\n\n    destroyFromRecordData() {\n      if (this._doNotDestroy) {\n        this._doNotDestroy = false;\n        return;\n      }\n\n      this.destroy();\n    }\n\n    destroy() {\n      ( !(!this._record || this._record.get('isDestroyed') || this._record.get('isDestroying')) && Ember.assert('Cannot destroy an internalModel while its record is materialized', !this._record || this._record.get('isDestroyed') || this._record.get('isDestroying')));\n      this.isDestroying = true;\n      Object.keys(this._retainedManyArrayCache).forEach(key => {\n        this._retainedManyArrayCache[key].destroy();\n\n        delete this._retainedManyArrayCache[key];\n      });\n      internalModelFactoryFor(this.store).remove(this);\n      this._isDestroyed = true;\n    }\n\n    eachAttribute(callback, binding) {\n      return this.modelClass.eachAttribute(callback, binding);\n    }\n\n    inverseFor(key) {\n      return this.modelClass.inverseFor(key);\n    }\n\n    setupData(data) {\n      var changedKeys = this._recordData.pushData(data, this.hasRecord);\n\n      if (this.hasRecord) {\n        this._record._notifyProperties(changedKeys);\n      }\n\n      this.pushedData();\n    }\n\n    getAttributeValue(key) {\n      return this._recordData.getAttr(key);\n    }\n\n    setDirtyHasMany(key, records) {\n      assertRecordsPassedToHasMany(records);\n      return this._recordData.setDirtyHasMany(key, extractRecordDatasFromRecords(records));\n    }\n\n    setDirtyBelongsTo(key, value) {\n      return this._recordData.setDirtyBelongsTo(key, extractRecordDataFromRecord(value));\n    }\n\n    setDirtyAttribute(key, value) {\n      if (this.isDeleted()) {\n        throw new Ember.Error(`Attempted to set '${key}' to '${value}' on the deleted record ${this}`);\n      }\n\n      var currentValue = this.getAttributeValue(key);\n\n      if (currentValue !== value) {\n        this._recordData.setDirtyAttribute(key, value);\n\n        var isDirty = this._recordData.isAttrDirty(key);\n\n        this.send('didSetProperty', {\n          name: key,\n          isDirty: isDirty\n        });\n      }\n\n      return value;\n    }\n\n    get isDestroyed() {\n      return this._isDestroyed;\n    }\n\n    get hasRecord() {\n      return !!this._record;\n    }\n    /*\n      @method createSnapshot\n      @private\n    */\n\n\n    createSnapshot(options) {\n      return new Snapshot(options || {}, this.identifier, this.store);\n    }\n    /*\n      @method loadingData\n      @private\n      @param {Promise} promise\n    */\n\n\n    loadingData(promise) {\n      {\n        this.send('loadingData', promise);\n      }\n    }\n    /*\n      @method loadedData\n      @private\n    */\n\n\n    loadedData() {\n      this.send('loadedData');\n    }\n    /*\n      @method notFound\n      @private\n    */\n\n\n    notFound() {\n      this.send('notFound');\n    }\n    /*\n      @method pushedData\n      @private\n    */\n\n\n    pushedData() {\n      this.send('pushedData');\n    }\n\n    hasChangedAttributes() {\n      {\n        if (this.isLoading() && !this.isReloading) {\n          // no need to calculate changed attributes when calling `findRecord`\n          return false;\n        }\n      }\n\n      return this._recordData.hasChangedAttributes();\n    }\n    /*\n      Returns an object, whose keys are changed properties, and value is an\n      [oldProp, newProp] array.\n       @method changedAttributes\n      @private\n    */\n\n\n    changedAttributes() {\n      {\n        if (this.isLoading() && !this.isReloading) {\n          // no need to calculate changed attributes when calling `findRecord`\n          return {};\n        }\n      }\n\n      return this._recordData.changedAttributes();\n    }\n    /*\n      @method adapterWillCommit\n      @private\n    */\n\n\n    adapterWillCommit() {\n      this._recordData.willCommit();\n\n      this.send('willCommit');\n    }\n    /*\n      @method adapterDidDirty\n      @private\n    */\n\n\n    adapterDidDirty() {\n      this.send('becomeDirty');\n    }\n    /*\n      @method send\n      @private\n      @param {String} name\n      @param {Object} context\n    */\n\n\n    send(name, context) {\n      var currentState = this.currentState;\n\n      if (!currentState[name]) {\n        this._unhandledEvent(currentState, name, context);\n      }\n\n      return currentState[name](this, context);\n    }\n\n    manyArrayRecordAdded(key) {\n      if (this.hasRecord) {\n        {\n          this._record.notifyHasManyAdded(key);\n        }\n      }\n    }\n\n    notifyHasManyChange(key) {\n      if (this.hasRecord) {\n        {\n          var manyArray = this._manyArrayCache[key];\n\n          if (manyArray) {\n            // TODO: this will \"resurrect\" previously unloaded records\n            // see test '1:many async unload many side'\n            //  in `tests/integration/records/unload-test.js`\n            //  probably we don't want to retrieve latest eagerly when notifyhasmany changed\n            //  but rather lazily when someone actually asks for a manyarray\n            //\n            //  that said, also not clear why we haven't moved this to retainedmanyarray so maybe that's the bit that's just not workign\n            manyArray.retrieveLatest();\n          }\n        }\n      }\n    }\n\n    notifyBelongsToChange(key) {\n      if (this.hasRecord) {\n        {\n          this._record.notifyBelongsToChange(key, this._record);\n        }\n      }\n    }\n\n    hasManyRemovalCheck(key) {\n      var manyArray = this._manyArrayCache[key] || this._retainedManyArrayCache[key];\n      var didRemoveUnloadedModel = false;\n\n      if (manyArray) {\n        didRemoveUnloadedModel = manyArray.removeUnloadedInternalModel();\n\n        if (this._manyArrayCache[key] && didRemoveUnloadedModel) {\n          this._retainedManyArrayCache[key] = this._manyArrayCache[key];\n          delete this._manyArrayCache[key];\n        }\n      }\n\n      return didRemoveUnloadedModel;\n    }\n\n    notifyPropertyChange(key) {\n      if (this.hasRecord) {\n        {\n          this._record.notifyPropertyChange(key);\n        }\n      }\n\n      {\n        var manyArray = this._manyArrayCache[key] || this._retainedManyArrayCache[key];\n\n        if (manyArray) {\n          var didRemoveUnloadedModel = manyArray.removeUnloadedInternalModel();\n\n          if (this._manyArrayCache[key] && didRemoveUnloadedModel) {\n            this._retainedManyArrayCache[key] = this._manyArrayCache[key];\n            delete this._manyArrayCache[key];\n          }\n        }\n      }\n    }\n\n    notifyStateChange(key) {\n      ( Ember.assert('Cannot notify state change if Record Data State flag is not on', !!false));\n\n      if (this.hasRecord) {\n        {\n          if (!key || key === 'isNew') {\n            this.getRecord().notifyPropertyChange('isNew');\n          }\n\n          if (!key || key === 'isDeleted') {\n            this.getRecord().notifyPropertyChange('isDeleted');\n          }\n        }\n      }\n\n      if (!key || key === 'isDeletionCommitted') {\n        this.updateRecordArrays();\n      }\n    }\n\n    didCreateRecord() {\n      this._recordData.clientDidCreate();\n    }\n\n    rollbackAttributes() {\n      var dirtyKeys = this._recordData.rollbackAttributes();\n\n      if (Ember.get(this, 'isError')) {\n        this.didCleanError();\n      }\n\n      this.send('rolledBack');\n\n      if (this._record && dirtyKeys && dirtyKeys.length > 0) {\n        this._record._notifyProperties(dirtyKeys);\n      }\n    }\n    /*\n      @method transitionTo\n      @private\n      @param {String} name\n    */\n\n\n    transitionTo(name) {\n      // POSSIBLE TODO: Remove this code and replace with\n      // always having direct reference to state objects\n      var pivotName = extractPivotName(name);\n      var state = this.currentState;\n      var transitionMapId = `${state.stateName}->${name}`;\n\n      do {\n        if (state.exit) {\n          state.exit(this);\n        }\n\n        state = state.parentState;\n      } while (!state[pivotName]);\n\n      var setups;\n      var enters;\n      var i;\n      var l;\n      var map = TransitionChainMap[transitionMapId];\n\n      if (map) {\n        setups = map.setups;\n        enters = map.enters;\n        state = map.state;\n      } else {\n        setups = [];\n        enters = [];\n        var path = splitOnDot(name);\n\n        for (i = 0, l = path.length; i < l; i++) {\n          state = state[path[i]];\n\n          if (state.enter) {\n            enters.push(state);\n          }\n\n          if (state.setup) {\n            setups.push(state);\n          }\n        }\n\n        TransitionChainMap[transitionMapId] = {\n          setups,\n          enters,\n          state\n        };\n      }\n\n      for (i = 0, l = enters.length; i < l; i++) {\n        enters[i].enter(this);\n      }\n\n      this.currentState = state;\n\n      if (this.hasRecord) {\n        Ember.set(this._record, 'currentState', state);\n      }\n\n      for (i = 0, l = setups.length; i < l; i++) {\n        setups[i].setup(this);\n      }\n    }\n\n    _unhandledEvent(state, name, context) {\n      var errorMessage = 'Attempted to handle event `' + name + '` ';\n      errorMessage += 'on ' + String(this) + ' while in state ';\n      errorMessage += state.stateName + '. ';\n\n      if (context !== undefined) {\n        errorMessage += 'Called with ' + Ember.inspect(context) + '.';\n      }\n\n      throw new Ember.Error(errorMessage);\n    }\n\n    triggerLater(...args) {\n      if (this._deferredTriggers.push(args) !== 1) {\n        return;\n      }\n\n      this.store._updateInternalModel(this);\n    }\n\n    _triggerDeferredTriggers() {\n      //TODO: Before 1.0 we want to remove all the events that happen on the pre materialized record,\n      //but for now, we queue up all the events triggered before the record was materialized, and flush\n      //them once we have the record\n      if (!this.hasRecord) {\n        return;\n      }\n\n      var triggers = this._deferredTriggers;\n      var record = this._record;\n      var trigger = record.trigger; // TODO Igor make nicer check\n\n      if (trigger && typeof trigger === 'function') {\n        for (var i = 0, l = triggers.length; i < l; i++) {\n          var eventName = triggers[i];\n          trigger.apply(record, eventName);\n        }\n      }\n\n      triggers.length = 0;\n    }\n\n    removeFromInverseRelationships(isNew = false) {\n      this._recordData.removeFromInverseRelationships(isNew);\n    }\n    /*\n      When a find request is triggered on the store, the user can optionally pass in\n      attributes and relationships to be preloaded. These are meant to behave as if they\n      came back from the server, except the user obtained them out of band and is informing\n      the store of their existence. The most common use case is for supporting client side\n      nested URLs, such as `/posts/1/comments/2` so the user can do\n      `store.findRecord('comment', 2, { preload: { post: 1 } })` without having to fetch the post.\n       Preloaded data can be attributes and relationships passed in either as IDs or as actual\n      models.\n       @method preloadData\n      @private\n      @param {Object} preload\n    */\n\n\n    preloadData(preload) {\n      var jsonPayload = {}; //TODO(Igor) consider the polymorphic case\n\n      Object.keys(preload).forEach(key => {\n        var preloadValue = Ember.get(preload, key);\n        var relationshipMeta = this.modelClass.metaForProperty(key);\n\n        if (relationshipMeta.isRelationship) {\n          if (!jsonPayload.relationships) {\n            jsonPayload.relationships = {};\n          }\n\n          jsonPayload.relationships[key] = this._preloadRelationship(key, preloadValue);\n        } else {\n          if (!jsonPayload.attributes) {\n            jsonPayload.attributes = {};\n          }\n\n          jsonPayload.attributes[key] = preloadValue;\n        }\n      });\n\n      this._recordData.pushData(jsonPayload);\n    }\n\n    _preloadRelationship(key, preloadValue) {\n      var relationshipMeta = this.modelClass.metaForProperty(key);\n      var modelClass = relationshipMeta.type;\n      var data;\n\n      if (relationshipMeta.kind === 'hasMany') {\n        ( !(Array.isArray(preloadValue)) && Ember.assert('You need to pass in an array to set a hasMany property on a record', Array.isArray(preloadValue)));\n        data = preloadValue.map(value => this._convertPreloadRelationshipToJSON(value, modelClass));\n      } else {\n        data = this._convertPreloadRelationshipToJSON(preloadValue, modelClass);\n      }\n\n      return {\n        data\n      };\n    }\n\n    _convertPreloadRelationshipToJSON(value, modelClass) {\n      if (typeof value === 'string' || typeof value === 'number') {\n        return {\n          type: modelClass,\n          id: value\n        };\n      }\n\n      var internalModel;\n\n      if (value._internalModel) {\n        internalModel = value._internalModel;\n      } else {\n        internalModel = value;\n      } // TODO IGOR DAVID assert if no id is present\n\n\n      return {\n        type: internalModel.modelName,\n        id: internalModel.id\n      };\n    }\n    /*\n      Used to notify the store to update FilteredRecordArray membership.\n       @method updateRecordArrays\n      @private\n    */\n\n\n    updateRecordArrays() {\n      // @ts-ignore: Store is untyped and typescript does not detect instance props set in `init`\n      this.store.recordArrayManager.recordDidChange(this);\n    }\n\n    setId(id) {\n      var didChange = id !== this._id;\n      this._id = id;\n      Ember.set(this, '_tag', this._tag + 1);\n\n      if (didChange && id !== null) {\n        this.store.setRecordId(this.modelName, id, this.clientId); // internal set of ID to get it to RecordData from DS.Model\n\n        if (this._recordData.__setId) {\n          this._recordData.__setId(id);\n        }\n      }\n\n      if (didChange && this.hasRecord) {\n        {\n          this.notifyPropertyChange('id');\n        }\n      }\n    }\n\n    didError(error) {\n      {\n        this.error = error;\n        this.isError = true;\n\n        if (this.hasRecord) {\n          this._record.setProperties({\n            isError: true,\n            adapterError: error\n          });\n        }\n      }\n    }\n\n    didCleanError() {\n      {\n        this.error = null;\n        this.isError = false;\n\n        if (this.hasRecord) {\n          this._record.setProperties({\n            isError: false,\n            adapterError: null\n          });\n        }\n      }\n    }\n    /*\n      If the adapter did not return a hash in response to a commit,\n      merge the changed attributes and relationships into the existing\n      saved data.\n       @method adapterDidCommit\n    */\n\n\n    adapterDidCommit(data) {\n      this.didCleanError();\n\n      var changedKeys = this._recordData.didCommit(data);\n\n      this.send('didCommit');\n      this.updateRecordArrays();\n\n      if (!data) {\n        return;\n      }\n\n      {\n        this._record._notifyProperties(changedKeys);\n      }\n    }\n\n    addErrorMessageToAttribute(attribute, message) {\n      Ember.get(this.getRecord(), 'errors')._add(attribute, message);\n    }\n\n    removeErrorMessageFromAttribute(attribute) {\n      Ember.get(this.getRecord(), 'errors')._remove(attribute);\n    }\n\n    clearErrorMessages() {\n      Ember.get(this.getRecord(), 'errors')._clear();\n    }\n\n    hasErrors() {\n      {\n        var _errors = Ember.get(this.getRecord(), 'errors');\n\n        return _errors.get('length') > 0;\n      }\n    } // FOR USE DURING COMMIT PROCESS\n\n    /*\n      @method adapterDidInvalidate\n      @private\n    */\n\n\n    adapterDidInvalidate(parsedErrors, error) {\n      {\n        var _attribute;\n\n        for (_attribute in parsedErrors) {\n          if (hasOwnProperty.call(parsedErrors, _attribute)) {\n            this.addErrorMessageToAttribute(_attribute, parsedErrors[_attribute]);\n          }\n        }\n\n        this.send('becameInvalid');\n\n        this._recordData.commitWasRejected();\n      }\n    }\n\n    notifyErrorsChange() {\n      var invalidErrors;\n\n      if (this._recordData.getErrors) {\n        invalidErrors = this._recordData.getErrors(this.identifier) || [];\n      } else {\n        return;\n      }\n\n      this.notifyInvalidErrorsChange(invalidErrors);\n    }\n\n    notifyInvalidErrorsChange(jsonApiErrors) {\n      {\n        this.getRecord().invalidErrorsChanged(jsonApiErrors);\n      }\n    }\n    /*\n      @method adapterDidError\n      @private\n    */\n\n\n    adapterDidError(error) {\n      this.send('becameError');\n      this.didError(error);\n\n      this._recordData.commitWasRejected();\n    }\n\n    toString() {\n      return `<${this.modelName}:${this.id}>`;\n    }\n\n    referenceFor(kind, name) {\n      var reference = this.references[name];\n\n      if (!reference) {\n        // TODO IGOR AND DAVID REFACTOR\n        var relationship = relationshipStateFor$1(this, name);\n\n        if ( kind) {\n          var modelName = this.modelName;\n          ( !(!!relationship) && Ember.assert(`There is no ${kind} relationship named '${name}' on a model of modelClass '${modelName}'`, !!relationship));\n          var actualRelationshipKind = relationship.relationshipMeta.kind;\n          ( !(actualRelationshipKind === kind) && Ember.assert(`You tried to get the '${name}' relationship on a '${modelName}' via record.${kind}('${name}'), but the relationship is of kind '${actualRelationshipKind}'. Use record.${actualRelationshipKind}('${name}') instead.`, actualRelationshipKind === kind));\n        }\n\n        var relationshipKind = relationship.relationshipMeta.kind;\n\n        if (relationshipKind === 'belongsTo') {\n          reference = new BelongsToReference(this.store, this, relationship, name);\n        } else if (relationshipKind === 'hasMany') {\n          reference = new HasManyReference(this.store, this, relationship, name);\n        }\n\n        this.references[name] = reference;\n      }\n\n      return reference;\n    }\n\n  }\n\n  function handleCompletedRelationshipRequest(internalModel, key, relationship, value, error) {\n    delete internalModel._relationshipPromisesCache[key];\n    relationship.setShouldForceReload(false);\n\n    if (error) {\n      relationship.setHasFailedLoadAttempt(true);\n      var proxy = internalModel._relationshipProxyCache[key]; // belongsTo relationships are sometimes unloaded\n      // when a load fails, in this case we need\n      // to make sure that we aren't proxying\n      // to destroyed content\n      // for the sync belongsTo reload case there will be no proxy\n      // for the async reload case there will be no proxy if the ui\n      // has never been accessed\n\n      if (proxy && relationship.kind === 'belongsTo') {\n        if (proxy.content && proxy.content.isDestroying) {\n          proxy.set('content', null);\n        }\n      }\n\n      throw error;\n    }\n\n    relationship.setHasFailedLoadAttempt(false); // only set to not stale if no error is thrown\n\n    relationship.setRelationshipIsStale(false);\n    return value;\n  }\n\n  function assertRecordsPassedToHasMany(records) {\n    // TODO only allow native arrays\n    ( !(Array.isArray(records) || Ember.Array.detect(records)) && Ember.assert(`You must pass an array of records to set a hasMany relationship`, Array.isArray(records) || Ember.Array.detect(records)));\n    ( !(function () {\n      return Ember.A(records).every(record => hasOwnProperty.call(record, '_internalModel') === true);\n    }()) && Ember.assert(`All elements of a hasMany relationship must be instances of Model, you passed ${Ember.inspect(records)}`, function () {\n      return Ember.A(records).every(record => hasOwnProperty.call(record, '_internalModel') === true);\n    }()));\n  }\n  function extractRecordDatasFromRecords(records) {\n    return records.map(extractRecordDataFromRecord);\n  }\n  function extractRecordDataFromRecord(recordOrPromiseRecord) {\n    if (!recordOrPromiseRecord) {\n      return null;\n    }\n\n    if (recordOrPromiseRecord.then) {\n      var content = recordOrPromiseRecord.get && recordOrPromiseRecord.get('content');\n      ( !(content !== undefined) && Ember.assert('You passed in a promise that did not originate from an EmberData relationship. You can only pass promises that come from a belongsTo or hasMany relationship to the get call.', content !== undefined));\n      return content ? recordDataFor(content) : null;\n    }\n\n    return recordDataFor(recordOrPromiseRecord);\n  }\n\n  var AvailableShims = new WeakMap();\n  function getShimClass(store, modelName) {\n    var shims = AvailableShims.get(store);\n\n    if (shims === undefined) {\n      shims = Object.create(null);\n      AvailableShims.set(store, shims);\n    }\n\n    var shim = shims[modelName];\n\n    if (shim === undefined) {\n      shim = shims[modelName] = new ShimModelClass(store, modelName);\n    }\n\n    return shim;\n  } // Mimics the static apis of DSModel\n\n  class ShimModelClass {\n    // TODO Maybe expose the class here?\n    constructor(__store, modelName) {\n      this.__store = __store;\n      this.modelName = modelName;\n    }\n\n    get fields() {\n      var attrs = this.__store._attributesDefinitionFor(this.modelName);\n\n      var relationships = this.__store._relationshipsDefinitionFor(this.modelName);\n\n      var fields = new Map();\n      Object.keys(attrs).forEach(key => fields.set(key, 'attribute'));\n      Object.keys(relationships).forEach(key => fields.set(key, relationships[key].kind));\n      return fields;\n    }\n\n    get attributes() {\n      var attrs = this.__store._attributesDefinitionFor(this.modelName);\n\n      return new Map(Object.entries(attrs));\n    }\n\n    get relationshipsByName() {\n      var relationships = this.__store._relationshipsDefinitionFor(this.modelName);\n\n      return new Map(Object.entries(relationships));\n    }\n\n    eachAttribute(callback, binding) {\n      var attrDefs = this.__store._attributesDefinitionFor(this.modelName);\n\n      Object.keys(attrDefs).forEach(key => {\n        callback.call(binding, key, attrDefs[key]);\n      });\n    }\n\n    eachRelationship(callback, binding) {\n      var relationshipDefs = this.__store._relationshipsDefinitionFor(this.modelName);\n\n      Object.keys(relationshipDefs).forEach(key => {\n        callback.call(binding, key, relationshipDefs[key]);\n      });\n    }\n\n    eachTransformedAttribute(callback, binding) {\n      var relationshipDefs = this.__store._relationshipsDefinitionFor(this.modelName);\n\n      Object.keys(relationshipDefs).forEach(key => {\n        if (relationshipDefs[key].type) {\n          callback.call(binding, key, relationshipDefs[key]);\n        }\n      });\n    }\n\n  }\n\n  /**\n    @module @ember-data/store\n  */\n  var INSTANCE_DEPRECATIONS;\n  var lookupDeprecations;\n  var DeprecatedEvented;\n\n  {\n    INSTANCE_DEPRECATIONS = new WeakMap();\n\n    lookupDeprecations = function lookupInstanceDrecations(instance) {\n      var deprecations = INSTANCE_DEPRECATIONS.get(instance);\n\n      if (!deprecations) {\n        deprecations = {};\n        INSTANCE_DEPRECATIONS.set(instance, deprecations);\n      }\n\n      return deprecations;\n    };\n\n    DeprecatedEvented = Ember.Mixin.create(Ember.Evented, {\n      /**\n       * Provides a way to call Evented without logging deprecation warnings\n       * @param {String} name\n       */\n      _has(name) {\n        return Ember.Evented.mixins[0].properties.has.call(this, name);\n      },\n\n      _on() {\n        return Ember.Evented.mixins[0].properties.on.call(this, ...arguments);\n      },\n\n      _deprecateEvented(eventName) {\n        var deprecations = lookupDeprecations(this);\n\n        var _deprecationData = this._getDeprecatedEventedInfo ? `on ${this._getDeprecatedEventedInfo()}` : '';\n\n        var deprecationMessage = _deprecationData ? `Called ${eventName} ${_deprecationData}` : eventName;\n        ( !(deprecations[eventName]) && Ember.deprecate(deprecationMessage, deprecations[eventName], {\n          id: 'ember-data:evented-api-usage',\n          until: '4.0',\n          url: 'https://deprecations.emberjs.com/ember-data/v3.x/#deprecatingrecordlifecycleeventmethods'\n        }));\n        deprecations[eventName] = true;\n      },\n\n      has(name) {\n        this._deprecateEvented(name);\n\n        return this._super(...arguments);\n      },\n\n      off(name, target, method) {\n        this._deprecateEvented(name);\n\n        return this._super(...arguments);\n      },\n\n      on(name, target, method) {\n        this._deprecateEvented(name);\n\n        return this._super(...arguments);\n      },\n\n      one(name, target, method) {\n        this._deprecateEvented(name);\n\n        return this._super(...arguments);\n      },\n\n      trigger(name) {\n        this._deprecateEvented(name);\n\n        return this._super(...arguments);\n      }\n\n    });\n  }\n\n  var DeprecatedEvented$1 =   DeprecatedEvented  ;\n\n  /**\n    @module @ember-data/store\n  */\n\n  /**\n    @class SnapshotRecordArray\n    @private\n    @constructor\n    @param {Array} snapshots An array of snapshots\n    @param {Object} meta\n  */\n  class SnapshotRecordArray {\n    constructor(recordArray, meta, options = {}) {\n      this._snapshots = void 0;\n      this._recordArray = void 0;\n      this._type = void 0;\n      this.length = void 0;\n      this.meta = void 0;\n      this.adapterOptions = void 0;\n      this.include = void 0;\n\n      /**\n        An array of snapshots\n        @private\n        @property _snapshots\n        @type {Array}\n      */\n      this._snapshots = null;\n      /**\n        An array of records\n        @private\n        @property _recordArray\n        @type {Array}\n      */\n\n      this._recordArray = recordArray;\n      /**\n        Number of records in the array\n         Example\n         ```app/adapters/post.js\n        import JSONAPIAdapter from '@ember-data/adapter/json-api';\n         export default JSONAPIAdapter.extend({\n          shouldReloadAll(store, snapshotRecordArray) {\n            return !snapshotRecordArray.length;\n          },\n        });\n        ```\n         @property length\n        @type {Number}\n      */\n\n      this.length = recordArray.get('length');\n      this._type = null;\n      /**\n        Meta objects for the record array.\n         Example\n         ```app/adapters/post.js\n        import JSONAPIAdapter from '@ember-data/adapter/json-api';\n         export default JSONAPIAdapter.extend({\n          shouldReloadAll(store, snapshotRecordArray) {\n            var lastRequestTime = snapshotRecordArray.meta.lastRequestTime;\n            var twentyMinutes = 20 * 60 * 1000;\n            return Date.now() > lastRequestTime + twentyMinutes;\n          },\n        });\n        ```\n         @property meta\n        @type {Object}\n      */\n\n      this.meta = meta;\n      /**\n        A hash of adapter options passed into the store method for this request.\n         Example\n         ```app/adapters/post.js\n        import MyCustomAdapter from './custom-adapter';\n         export default MyCustomAdapter.extend({\n          findAll(store, type, sinceToken, snapshotRecordArray) {\n            if (snapshotRecordArray.adapterOptions.subscribe) {\n              // ...\n            }\n            // ...\n          }\n        });\n        ```\n         @property adapterOptions\n        @type {Object}\n      */\n\n      this.adapterOptions = options.adapterOptions;\n      /**\n        The relationships to include for this request.\n         Example\n         ```app/adapters/application.js\n        import Adapter from '@ember-data/adapter';\n         export default Adapter.extend({\n          findAll(store, type, snapshotRecordArray) {\n            var url = `/${type.modelName}?include=${encodeURIComponent(snapshotRecordArray.include)}`;\n             return fetch(url).then((response) => response.json())\n          }\n        });\n        ```\n         @property include\n        @type {String|Array}\n      */\n\n      this.include = options.include;\n    }\n    /**\n      The type of the underlying records for the snapshots in the array, as a Model\n      @property type\n      @type {Model}\n    */\n\n\n    get type() {\n      return this._type || (this._type = this._recordArray.get('type'));\n    }\n    /**\n      The modelName of the underlying records for the snapshots in the array, as a Model\n      @property type\n      @type {Model}\n    */\n\n\n    get modelName() {\n      return this._recordArray.modelName;\n    }\n    /**\n      Get snapshots of the underlying record array\n       Example\n       ```app/adapters/post.js\n      import JSONAPIAdapter from '@ember-data/adapter/json-api';\n       export default JSONAPIAdapter.extend({\n        shouldReloadAll(store, snapshotArray) {\n          var snapshots = snapshotArray.snapshots();\n           return snapshots.any(function(ticketSnapshot) {\n            var timeDiff = moment().diff(ticketSnapshot.attr('lastAccessedAt'), 'minutes');\n            if (timeDiff > 20) {\n              return true;\n            } else {\n              return false;\n            }\n          });\n        }\n      });\n      ```\n       @method snapshots\n      @return {Array} Array of snapshots\n    */\n\n\n    snapshots() {\n      if (this._snapshots !== null) {\n        return this._snapshots;\n      }\n\n      this._snapshots = this._recordArray._takeSnapshot();\n      return this._snapshots;\n    }\n\n  }\n\n  /**\n    A record array is an array that contains records of a certain modelName. The record\n    array materializes records as needed when they are retrieved for the first\n    time. You should not create record arrays yourself. Instead, an instance of\n    `RecordArray` or its subclasses will be returned by your application's store\n    in response to queries.\n\n    @class RecordArray\n    @extends ArrayProxy\n    @uses Ember.Evented\n  */\n\n  var RecordArray = Ember.ArrayProxy.extend(DeprecatedEvented$1, {\n    init() {\n      this._super(...arguments);\n\n      {\n        this._getDeprecatedEventedInfo = () => `RecordArray containing ${this.modelName}`;\n      }\n      /**\n        The array of client ids backing the record array. When a\n        record is requested from the record array, the record\n        for the client id at the same index is materialized, if\n        necessary, by the store.\n         @property content\n        @private\n        @type Ember.Array\n        */\n\n\n      this.set('content', this.content || null);\n      /**\n      The flag to signal a `RecordArray` is finished loading data.\n       Example\n       ```javascript\n      var people = store.peekAll('person');\n      people.get('isLoaded'); // true\n      ```\n       @property isLoaded\n      @type Boolean\n      */\n\n      this.isLoaded = this.isLoaded || false;\n      /**\n      The flag to signal a `RecordArray` is currently loading data.\n       Example\n       ```javascript\n      var people = store.peekAll('person');\n      people.get('isUpdating'); // false\n      people.update();\n      people.get('isUpdating'); // true\n      ```\n       @property isUpdating\n      @type Boolean\n      */\n\n      this.isUpdating = false;\n      /**\n      The store that created this record array.\n       @property store\n      @private\n      @type Store\n      */\n\n      this.store = this.store || null;\n      this._updatingPromise = null;\n    },\n\n    replace() {\n      throw new Error(`The result of a server query (for all ${this.modelName} types) is immutable. To modify contents, use toArray()`);\n    },\n\n    /**\n     The modelClass represented by this record array.\n      @property type\n     @type Model\n     */\n    type: Ember.computed('modelName', function () {\n      if (!this.modelName) {\n        return null;\n      }\n\n      return this.store.modelFor(this.modelName);\n    }).readOnly(),\n\n    /**\n      Retrieves an object from the content by index.\n       @method objectAtContent\n      @private\n      @param {Number} index\n      @return {Model} record\n    */\n    objectAtContent(index) {\n      var internalModel = Ember.get(this, 'content').objectAt(index);\n      return internalModel && internalModel.getRecord();\n    },\n\n    /**\n      Used to get the latest version of all of the records in this array\n      from the adapter.\n       Example\n       ```javascript\n      var people = store.peekAll('person');\n      people.get('isUpdating'); // false\n       people.update().then(function() {\n        people.get('isUpdating'); // false\n      });\n       people.get('isUpdating'); // true\n      ```\n       @method update\n    */\n    update() {\n      if (Ember.get(this, 'isUpdating')) {\n        return this._updatingPromise;\n      }\n\n      this.set('isUpdating', true);\n\n      var updatingPromise = this._update().finally(() => {\n        this._updatingPromise = null;\n\n        if (this.get('isDestroying') || this.get('isDestroyed')) {\n          return;\n        }\n\n        this.set('isUpdating', false);\n      });\n\n      this._updatingPromise = updatingPromise;\n      return updatingPromise;\n    },\n\n    /*\n      Update this RecordArray and return a promise which resolves once the update\n      is finished.\n     */\n    _update() {\n      return this.store.findAll(this.modelName, {\n        reload: true\n      });\n    },\n\n    /**\n      Adds an internal model to the `RecordArray` without duplicates\n       @method _pushInternalModels\n      @private\n      @param {InternalModel} internalModel\n    */\n    _pushInternalModels(internalModels) {\n      // pushObjects because the internalModels._recordArrays set was already\n      // consulted for inclusion, so addObject and its on .contains call is not\n      // required.\n      Ember.get(this, 'content').pushObjects(internalModels);\n    },\n\n    /**\n      Removes an internalModel to the `RecordArray`.\n       @method removeInternalModel\n      @private\n      @param {InternalModel} internalModel\n    */\n    _removeInternalModels(internalModels) {\n      Ember.get(this, 'content').removeObjects(internalModels);\n    },\n\n    /**\n      Saves all of the records in the `RecordArray`.\n       Example\n       ```javascript\n      var messages = store.peekAll('message');\n      messages.forEach(function(message) {\n        message.set('hasBeenSeen', true);\n      });\n      messages.save();\n      ```\n       @method save\n      @return {PromiseArray} promise\n    */\n    save() {\n      var promiseLabel = `DS: RecordArray#save ${this.modelName}`;\n      var promise = Ember.RSVP.Promise.all(this.invoke('save'), promiseLabel).then(() => this, null, 'DS: RecordArray#save return RecordArray');\n      return PromiseArray.create({\n        promise\n      });\n    },\n\n    _dissociateFromOwnRecords() {\n      this.get('content').forEach(internalModel => {\n        var recordArrays = internalModel.__recordArrays;\n\n        if (recordArrays) {\n          recordArrays.delete(this);\n        }\n      });\n    },\n\n    /**\n      @method _unregisterFromManager\n      @private\n    */\n    _unregisterFromManager() {\n      this.manager.unregisterRecordArray(this);\n    },\n\n    willDestroy() {\n      this._unregisterFromManager();\n\n      this._dissociateFromOwnRecords(); // TODO: we should not do work during destroy:\n      //   * when objects are destroyed, they should simply be left to do\n      //   * if logic errors do to this, that logic needs to be more careful during\n      //    teardown (ember provides isDestroying/isDestroyed) for this reason\n      //   * the exception being: if an dominator has a reference to this object,\n      //     and must be informed to release e.g. e.g. removing itself from th\n      //     recordArrayMananger\n\n\n      Ember.set(this, 'content', null);\n      Ember.set(this, 'length', 0);\n\n      this._super(...arguments);\n    },\n\n    /*\n      @method _createSnapshot\n      @private\n    */\n    _createSnapshot(options) {\n      // this is private for users, but public for ember-data internals\n      return new SnapshotRecordArray(this, this.get('meta'), options);\n    },\n\n    /*\n      @method _takeSnapshot\n      @private\n    */\n    _takeSnapshot() {\n      return Ember.get(this, 'content').map(internalModel => internalModel.createSnapshot());\n    }\n\n  });\n\n  /**\n    @module @ember-data/store\n  */\n\n  /**\n    Represents an ordered list of records whose order and membership is\n    determined by the adapter. For example, a query sent to the adapter\n    may trigger a search on the server, whose results would be loaded\n    into an instance of the `AdapterPopulatedRecordArray`.\n\n    ---\n\n    If you want to update the array and get the latest records from the\n    adapter, you can invoke [`update()`](AdapterPopulatedRecordArray/methods/update?anchor=update):\n\n    Example\n\n    ```javascript\n    // GET /users?isAdmin=true\n    store.query('user', { isAdmin: true }).then(function(admins) {\n\n      admins.then(function() {\n        console.log(admins.get(\"length\")); // 42\n      });\n\n      // somewhere later in the app code, when new admins have been created\n      // in the meantime\n      //\n      // GET /users?isAdmin=true\n      admins.update().then(function() {\n        admins.get('isUpdating'); // false\n        console.log(admins.get(\"length\")); // 123\n      });\n\n      admins.get('isUpdating'); // true\n    }\n    ```\n\n    @class AdapterPopulatedRecordArray\n    @extends RecordArray\n  */\n\n  var AdapterPopulatedRecordArray = RecordArray.extend({\n    init() {\n      // yes we are touching `this` before super, but ArrayProxy has a bug that requires this.\n      this.set('content', this.get('content') || Ember.A());\n\n      this._super(...arguments);\n\n      this.query = this.query || null;\n      this.links = this.links || null;\n\n      {\n        this._getDeprecatedEventedInfo = () => `AdapterPopulatedRecordArray containing ${this.modelName} for query: ${this.query}`;\n      }\n    },\n\n    replace() {\n      throw new Error(`The result of a server query (on ${this.modelName}) is immutable.`);\n    },\n\n    _update() {\n      var store = Ember.get(this, 'store');\n      var query = Ember.get(this, 'query');\n      return store._query(this.modelName, query, this);\n    },\n\n    /**\n      @method _setInternalModels\n      @param {Array} internalModels\n      @param {Object} payload normalized payload\n      @private\n    */\n    _setInternalModels(internalModels, payload) {\n      // TODO: initial load should not cause change events at all, only\n      // subsequent. This requires changing the public api of adapter.query, but\n      // hopefully we can do that soon.\n      this.get('content').setObjects(internalModels);\n      this.setProperties({\n        isLoaded: true,\n        isUpdating: false,\n        meta: Ember.assign({}, payload.meta),\n        links: Ember.assign({}, payload.links)\n      });\n\n      this.manager._associateWithRecordArray(internalModels, this);\n\n      {\n        var _hasDidLoad =  this._has('didLoad') ;\n\n        if (_hasDidLoad) {\n          // TODO: should triggering didLoad event be the last action of the runLoop?\n          Ember.run.once(this, 'trigger', 'didLoad');\n        }\n      }\n    }\n\n  });\n\n  var emberRun$1 = Ember.run.backburner;\n  /**\n    @class RecordArrayManager\n    @private\n  */\n\n  class RecordArrayManager {\n    constructor(options) {\n      this.store = options.store;\n      this.isDestroying = false;\n      this.isDestroyed = false;\n      this._liveRecordArrays = Object.create(null);\n      this._pending = Object.create(null);\n      this._adapterPopulatedRecordArrays = [];\n    }\n\n    recordDidChange(internalModel) {\n      var modelName = internalModel.modelName;\n\n      if (internalModel._pendingRecordArrayManagerFlush) {\n        return;\n      }\n\n      internalModel._pendingRecordArrayManagerFlush = true;\n      var pending = this._pending;\n      var models = pending[modelName] = pending[modelName] || [];\n\n      if (models.push(internalModel) !== 1) {\n        return;\n      }\n\n      emberRun$1.schedule('actions', this, this._flush);\n    }\n\n    _flushPendingInternalModelsForModelName(modelName, internalModels) {\n      var modelsToRemove = [];\n\n      for (var j = 0; j < internalModels.length; j++) {\n        var internalModel = internalModels[j]; // mark internalModels, so they can once again be processed by the\n        // recordArrayManager\n\n        internalModel._pendingRecordArrayManagerFlush = false; // build up a set of models to ensure we have purged correctly;\n\n        if (internalModel.isHiddenFromRecordArrays()) {\n          modelsToRemove.push(internalModel);\n        }\n      }\n\n      var array = this._liveRecordArrays[modelName];\n\n      if (array) {\n        // TODO: skip if it only changed\n        // process liveRecordArrays\n        updateLiveRecordArray(array, internalModels);\n      } // process adapterPopulatedRecordArrays\n\n\n      if (modelsToRemove.length > 0) {\n        removeFromAdapterPopulatedRecordArrays(modelsToRemove);\n      }\n    }\n\n    _flush() {\n      var pending = this._pending;\n      this._pending = Object.create(null);\n\n      for (var modelName in pending) {\n        this._flushPendingInternalModelsForModelName(modelName, pending[modelName]);\n      }\n    }\n\n    _syncLiveRecordArray(array, modelName) {\n      ( !(typeof modelName === 'string') && Ember.assert(`recordArrayManger.syncLiveRecordArray expects modelName not modelClass as the second param`, typeof modelName === 'string'));\n      var pending = this._pending[modelName];\n      var hasPendingChanges = Array.isArray(pending);\n      var hasNoPotentialDeletions = !hasPendingChanges || pending.length === 0;\n      var map = internalModelFactoryFor(this.store).modelMapFor(modelName);\n      var hasNoInsertionsOrRemovals = Ember.get(map, 'length') === Ember.get(array, 'length');\n      /*\n        Ideally the recordArrayManager has knowledge of the changes to be applied to\n        liveRecordArrays, and is capable of strategically flushing those changes and applying\n        small diffs if desired.  However, until we've refactored recordArrayManager, this dirty\n        check prevents us from unnecessarily wiping out live record arrays returned by peekAll.\n        */\n\n      if (hasNoPotentialDeletions && hasNoInsertionsOrRemovals) {\n        return;\n      }\n\n      if (hasPendingChanges) {\n        this._flushPendingInternalModelsForModelName(modelName, pending);\n\n        delete this._pending[modelName];\n      }\n\n      var internalModels = this._visibleInternalModelsByType(modelName);\n\n      var modelsToAdd = [];\n\n      for (var i = 0; i < internalModels.length; i++) {\n        var internalModel = internalModels[i];\n        var recordArrays = internalModel._recordArrays;\n\n        if (recordArrays.has(array) === false) {\n          recordArrays.add(array);\n          modelsToAdd.push(internalModel);\n        }\n      }\n\n      if (modelsToAdd.length) {\n        array._pushInternalModels(modelsToAdd);\n      }\n    }\n\n    _didUpdateAll(modelName) {\n      var recordArray = this._liveRecordArrays[modelName];\n\n      if (recordArray) {\n        Ember.set(recordArray, 'isUpdating', false);\n      }\n    }\n    /**\n      Get the `RecordArray` for a modelName, which contains all loaded records of\n      given modelName.\n       @method liveRecordArrayFor\n      @param {String} modelName\n      @return {RecordArray}\n    */\n\n\n    liveRecordArrayFor(modelName) {\n      ( !(typeof modelName === 'string') && Ember.assert(`recordArrayManger.liveRecordArrayFor expects modelName not modelClass as the param`, typeof modelName === 'string'));\n      var array = this._liveRecordArrays[modelName];\n\n      if (array) {\n        // if the array already exists, synchronize\n        this._syncLiveRecordArray(array, modelName);\n      } else {\n        // if the array is being newly created merely create it with its initial\n        // content already set. This prevents unneeded change events.\n        var internalModels = this._visibleInternalModelsByType(modelName);\n\n        array = this.createRecordArray(modelName, internalModels);\n        this._liveRecordArrays[modelName] = array;\n      }\n\n      return array;\n    }\n\n    _visibleInternalModelsByType(modelName) {\n      var all = internalModelFactoryFor(this.store).modelMapFor(modelName)._models;\n\n      var visible = [];\n\n      for (var i = 0; i < all.length; i++) {\n        var model = all[i];\n\n        if (model.isHiddenFromRecordArrays() === false) {\n          visible.push(model);\n        }\n      }\n\n      return visible;\n    }\n    /**\n      Create a `RecordArray` for a modelName.\n       @method createRecordArray\n      @param {String} modelName\n      @param {Array} _content (optional|private)\n      @return {RecordArray}\n    */\n\n\n    createRecordArray(modelName, content) {\n      ( !(typeof modelName === 'string') && Ember.assert(`recordArrayManger.createRecordArray expects modelName not modelClass as the param`, typeof modelName === 'string'));\n      var array = RecordArray.create({\n        modelName,\n        content: Ember.A(content || []),\n        store: this.store,\n        isLoaded: true,\n        manager: this\n      });\n\n      if (Array.isArray(content)) {\n        associateWithRecordArray(content, array);\n      }\n\n      return array;\n    }\n    /**\n      Create a `AdapterPopulatedRecordArray` for a modelName with given query.\n       @method createAdapterPopulatedRecordArray\n      @param {String} modelName\n      @param {Object} query\n      @return {AdapterPopulatedRecordArray}\n    */\n\n\n    createAdapterPopulatedRecordArray(modelName, query, internalModels, payload) {\n      ( !(typeof modelName === 'string') && Ember.assert(`recordArrayManger.createAdapterPopulatedRecordArray expects modelName not modelClass as the first param, received ${modelName}`, typeof modelName === 'string'));\n      var array;\n\n      if (Array.isArray(internalModels)) {\n        array = AdapterPopulatedRecordArray.create({\n          modelName,\n          query: query,\n          content: Ember.A(internalModels),\n          store: this.store,\n          manager: this,\n          isLoaded: true,\n          isUpdating: false,\n          meta: Ember.assign({}, payload.meta),\n          links: Ember.assign({}, payload.links)\n        });\n        associateWithRecordArray(internalModels, array);\n      } else {\n        array = AdapterPopulatedRecordArray.create({\n          modelName,\n          query: query,\n          content: Ember.A(),\n          store: this.store,\n          manager: this\n        });\n      }\n\n      this._adapterPopulatedRecordArrays.push(array);\n\n      return array;\n    }\n    /**\n      Unregister a RecordArray.\n      So manager will not update this array.\n       @method unregisterRecordArray\n      @param {RecordArray} array\n    */\n\n\n    unregisterRecordArray(array) {\n      var modelName = array.modelName; // remove from adapter populated record array\n\n      var removedFromAdapterPopulated = remove(this._adapterPopulatedRecordArrays, array);\n\n      if (!removedFromAdapterPopulated) {\n        var liveRecordArrayForType = this._liveRecordArrays[modelName]; // unregister live record array\n\n        if (liveRecordArrayForType) {\n          if (array === liveRecordArrayForType) {\n            delete this._liveRecordArrays[modelName];\n          }\n        }\n      }\n    }\n\n    _associateWithRecordArray(internalModels, array) {\n      associateWithRecordArray(internalModels, array);\n    }\n\n    willDestroy() {\n      Object.keys(this._liveRecordArrays).forEach(modelName => this._liveRecordArrays[modelName].destroy());\n\n      this._adapterPopulatedRecordArrays.forEach(destroy);\n\n      this.isDestroyed = true;\n    }\n\n    destroy() {\n      this.isDestroying = true;\n      emberRun$1.schedule('actions', this, this.willDestroy);\n    }\n\n  }\n\n  function destroy(entry) {\n    entry.destroy();\n  }\n\n  function remove(array, item) {\n    var index = array.indexOf(item);\n\n    if (index !== -1) {\n      array.splice(index, 1);\n      return true;\n    }\n\n    return false;\n  }\n\n  function updateLiveRecordArray(array, internalModels) {\n    var modelsToAdd = [];\n    var modelsToRemove = [];\n\n    for (var i = 0; i < internalModels.length; i++) {\n      var internalModel = internalModels[i];\n      var isDeleted = internalModel.isHiddenFromRecordArrays();\n      var recordArrays = internalModel._recordArrays;\n\n      if (!isDeleted && !internalModel.isEmpty()) {\n        if (!recordArrays.has(array)) {\n          modelsToAdd.push(internalModel);\n          recordArrays.add(array);\n        }\n      }\n\n      if (isDeleted) {\n        modelsToRemove.push(internalModel);\n        recordArrays.delete(array);\n      }\n    }\n\n    if (modelsToAdd.length > 0) {\n      array._pushInternalModels(modelsToAdd);\n    }\n\n    if (modelsToRemove.length > 0) {\n      array._removeInternalModels(modelsToRemove);\n    }\n  }\n\n  function removeFromAdapterPopulatedRecordArrays(internalModels) {\n    for (var i = 0; i < internalModels.length; i++) {\n      removeFromAll(internalModels[i]);\n    }\n  }\n\n  function removeFromAll(internalModel) {\n    var recordArrays = internalModel._recordArrays;\n    recordArrays.forEach(function (recordArray) {\n      recordArray._removeInternalModels([internalModel]);\n    });\n    recordArrays.clear();\n  }\n\n  function associateWithRecordArray(internalModels, array) {\n    for (var i = 0, l = internalModels.length; i < l; i++) {\n      var internalModel = internalModels[i];\n\n      internalModel._recordArrays.add(array);\n    }\n  }\n\n  /**\n    @module @ember-data/store\n  */\n\n  function payloadIsNotBlank(adapterPayload) {\n    if (Array.isArray(adapterPayload)) {\n      return true;\n    } else {\n      return Object.keys(adapterPayload || {}).length;\n    }\n  }\n\n  function _find(adapter, store, modelClass, id, internalModel, options) {\n\n    var snapshot = internalModel.createSnapshot(options);\n    var {\n      modelName\n    } = internalModel;\n    var promise = Ember.RSVP.Promise.resolve().then(() => {\n      return adapter.findRecord(store, modelClass, id, snapshot);\n    });\n    var label = `DS: Handle Adapter#findRecord of '${modelName}' with id: '${id}'`;\n    var {\n      identifier\n    } = internalModel;\n    promise = guardDestroyedStore(promise, store, label);\n    return promise.then(adapterPayload => {\n      ( !(payloadIsNotBlank(adapterPayload)) && Ember.assert(`You made a 'findRecord' request for a '${modelName}' with id '${id}', but the adapter's response did not have any data`, payloadIsNotBlank(adapterPayload)));\n      var serializer = store.serializerFor(modelName);\n      var payload = normalizeResponseHelper(serializer, store, modelClass, adapterPayload, id, 'findRecord');\n      ( !(!Array.isArray(payload.data)) && Ember.assert(`Ember Data expected the primary data returned from a 'findRecord' response to be an object but instead it found an array.`, !Array.isArray(payload.data)));\n      ( Ember.warn(`You requested a record of type '${modelName}' with id '${id}' but the adapter returned a payload with primary data having an id of '${payload.data.id}'. Use 'store.findRecord()' when the requested id is the same as the one returned by the adapter. In other cases use 'store.queryRecord()' instead.`, coerceId(payload.data.id) === coerceId(id), {\n        id: 'ds.store.findRecord.id-mismatch'\n      })); // ensure that regardless of id returned we assign to the correct record\n\n      payload.data.lid = identifier.lid;\n      return store._push(payload);\n    }, error => {\n      internalModel.notFound();\n\n      if (internalModel.isEmpty()) {\n        internalModel.unloadRecord();\n      }\n\n      throw error;\n    }, `DS: Extract payload of '${modelName}'`);\n  }\n  function _findMany(adapter, store, modelName, ids, internalModels, optionsMap) {\n    var snapshots = Ember.A(internalModels.map(internalModel => internalModel.createSnapshot(optionsMap.get(internalModel))));\n    var modelClass = store.modelFor(modelName); // `adapter.findMany` gets the modelClass still\n\n    var promise = adapter.findMany(store, modelClass, ids, snapshots);\n    var label = `DS: Handle Adapter#findMany of '${modelName}'`;\n\n    if (promise === undefined) {\n      throw new Error('adapter.findMany returned undefined, this was very likely a mistake');\n    }\n\n    promise = guardDestroyedStore(promise, store, label);\n    return promise.then(adapterPayload => {\n      ( !(payloadIsNotBlank(adapterPayload)) && Ember.assert(`You made a 'findMany' request for '${modelName}' records with ids '[${ids}]', but the adapter's response did not have any data`, payloadIsNotBlank(adapterPayload)));\n      var serializer = store.serializerFor(modelName);\n      var payload = normalizeResponseHelper(serializer, store, modelClass, adapterPayload, null, 'findMany');\n      return store._push(payload);\n    }, null, `DS: Extract payload of ${modelName}`);\n  }\n\n  function iterateData(data, fn) {\n    if (Array.isArray(data)) {\n      return data.map(fn);\n    } else {\n      return fn(data);\n    }\n  } // sync\n  // iterate over records in payload.data\n  // for each record\n  //   assert that record.relationships[inverse] is either undefined (so we can fix it)\n  //     or provide a data: {id, type} that matches the record that requested it\n  //   return the relationship data for the parent\n\n\n  function syncRelationshipDataFromLink(store, payload, parentInternalModel, relationship) {\n    // ensure the right hand side (incoming payload) points to the parent record that\n    // requested this relationship\n    var relationshipData = iterateData(payload.data, (data, index) => {\n      var {\n        id,\n        type\n      } = data;\n      ensureRelationshipIsSetToParent(data, parentInternalModel, store, relationship, index);\n      return {\n        id,\n        type\n      };\n    }); // now, push the left hand side (the parent record) to ensure things are in sync, since\n    // the payload will be pushed with store._push\n\n    var parentPayload = {\n      id: parentInternalModel.id,\n      type: parentInternalModel.modelName,\n      relationships: {\n        [relationship.key]: {\n          meta: payload.meta,\n          links: payload.links,\n          data: relationshipData\n        }\n      }\n    };\n\n    if (!Array.isArray(payload.included)) {\n      payload.included = [];\n    }\n\n    payload.included.push(parentPayload);\n    return payload;\n  }\n\n  function ensureRelationshipIsSetToParent(payload, parentInternalModel, store, parentRelationship, index) {\n    var {\n      id,\n      type\n    } = payload;\n\n    if (!payload.relationships) {\n      payload.relationships = {};\n    }\n\n    var {\n      relationships\n    } = payload;\n    var inverse = getInverse(store, parentInternalModel, parentRelationship, type);\n\n    if (inverse) {\n      var {\n        inverseKey,\n        kind\n      } = inverse;\n      var relationshipData = relationships[inverseKey] && relationships[inverseKey].data;\n\n      if ( typeof relationshipData !== 'undefined' && !relationshipDataPointsToParent(relationshipData, parentInternalModel)) {\n        var inspect = function inspect(thing) {\n          return `'${JSON.stringify(thing)}'`;\n        };\n\n        var quotedType = inspect(type);\n        var quotedInverse = inspect(inverseKey);\n        var expected = inspect({\n          id: parentInternalModel.id,\n          type: parentInternalModel.modelName\n        });\n        var expectedModel = `${parentInternalModel.modelName}:${parentInternalModel.id}`;\n        var got = inspect(relationshipData);\n        var prefix = typeof index === 'number' ? `data[${index}]` : `data`;\n        var path = `${prefix}.relationships.${inverseKey}.data`;\n        var other = relationshipData ? `<${relationshipData.type}:${relationshipData.id}>` : null;\n        var relationshipFetched = `${expectedModel}.${parentRelationship.kind}(\"${parentRelationship.name}\")`;\n        var includedRecord = `<${type}:${id}>`;\n        var message = [`Encountered mismatched relationship: Ember Data expected ${path} in the payload from ${relationshipFetched} to include ${expected} but got ${got} instead.\\n`, `The ${includedRecord} record loaded at ${prefix} in the payload specified ${other} as its ${quotedInverse}, but should have specified ${expectedModel} (the record the relationship is being loaded from) as its ${quotedInverse} instead.`, `This could mean that the response for ${relationshipFetched} may have accidentally returned ${quotedType} records that aren't related to ${expectedModel} and could be related to a different ${parentInternalModel.modelName} record instead.`, `Ember Data has corrected the ${includedRecord} record's ${quotedInverse} relationship to ${expectedModel} so that ${relationshipFetched} will include ${includedRecord}.`, `Please update the response from the server or change your serializer to either ensure that the response for only includes ${quotedType} records that specify ${expectedModel} as their ${quotedInverse}, or omit the ${quotedInverse} relationship from the response.`].join('\\n'); // this should eventually throw instead of deprecating.\n\n        ( Ember.deprecate(message + '\\n', false, {\n          id: 'mismatched-inverse-relationship-data-from-payload',\n          until: '3.8'\n        }));\n      }\n\n      if (kind !== 'hasMany' || typeof relationshipData !== 'undefined') {\n        relationships[inverseKey] = relationships[inverseKey] || {};\n        relationships[inverseKey].data = fixRelationshipData(relationshipData, kind, parentInternalModel);\n      }\n    }\n  }\n\n  function getInverse(store, parentInternalModel, parentRelationship, type) {\n    return recordDataFindInverseRelationshipInfo(store, parentInternalModel, parentRelationship, type);\n  }\n\n  function recordDataFindInverseRelationshipInfo({\n    _storeWrapper\n  }, parentInternalModel, parentRelationship, type) {\n    var {\n      name: lhs_relationshipName\n    } = parentRelationship;\n    var {\n      modelName\n    } = parentInternalModel;\n\n    var inverseKey = _storeWrapper.inverseForRelationship(modelName, lhs_relationshipName);\n\n    if (inverseKey) {\n      var {\n        meta: {\n          kind\n        }\n      } = _storeWrapper.relationshipsDefinitionFor(type)[inverseKey];\n\n      return {\n        inverseKey,\n        kind\n      };\n    }\n  }\n\n  function relationshipDataPointsToParent(relationshipData, internalModel) {\n    if (relationshipData === null) {\n      return false;\n    }\n\n    if (Array.isArray(relationshipData)) {\n      if (relationshipData.length === 0) {\n        return false;\n      }\n\n      for (var i = 0; i < relationshipData.length; i++) {\n        var entry = relationshipData[i];\n\n        if (validateRelationshipEntry(entry, internalModel)) {\n          return true;\n        }\n      }\n    } else {\n      return validateRelationshipEntry(relationshipData, internalModel);\n    }\n\n    return false;\n  }\n\n  function fixRelationshipData(relationshipData, relationshipKind, {\n    id,\n    modelName\n  }) {\n    var parentRelationshipData = {\n      id,\n      type: modelName\n    };\n    var payload;\n\n    if (relationshipKind === 'hasMany') {\n      payload = relationshipData || [];\n      payload.push(parentRelationshipData);\n    } else {\n      payload = relationshipData || {};\n      Ember.assign(payload, parentRelationshipData);\n    }\n\n    return payload;\n  }\n\n  function validateRelationshipEntry({\n    id\n  }, {\n    id: parentModelID\n  }) {\n    return id && id.toString() === parentModelID;\n  }\n\n  function _findHasMany(adapter, store, internalModel, link, relationship, options) {\n    var snapshot = internalModel.createSnapshot(options);\n    var modelClass = store.modelFor(relationship.type);\n    var useLink = !link || typeof link === 'string';\n    var relatedLink = useLink ? link : link.href;\n    var promise = adapter.findHasMany(store, snapshot, relatedLink, relationship);\n    var label = `DS: Handle Adapter#findHasMany of '${internalModel.modelName}' : '${relationship.type}'`;\n    promise = guardDestroyedStore(promise, store, label);\n    promise = _guard(promise, _bind(_objectIsAlive, internalModel));\n    return promise.then(adapterPayload => {\n      ( !(payloadIsNotBlank(adapterPayload)) && Ember.assert(`You made a 'findHasMany' request for a ${internalModel.modelName}'s '${relationship.key}' relationship, using link '${link}' , but the adapter's response did not have any data`, payloadIsNotBlank(adapterPayload)));\n      var serializer = store.serializerFor(relationship.type);\n      var payload = normalizeResponseHelper(serializer, store, modelClass, adapterPayload, null, 'findHasMany');\n      payload = syncRelationshipDataFromLink(store, payload, internalModel, relationship);\n\n      var internalModelArray = store._push(payload);\n\n      return internalModelArray;\n    }, null, `DS: Extract payload of '${internalModel.modelName}' : hasMany '${relationship.type}'`);\n  }\n  function _findBelongsTo(adapter, store, internalModel, link, relationship, options) {\n    var snapshot = internalModel.createSnapshot(options);\n    var modelClass = store.modelFor(relationship.type);\n    var useLink = !link || typeof link === 'string';\n    var relatedLink = useLink ? link : link.href;\n    var promise = adapter.findBelongsTo(store, snapshot, relatedLink, relationship);\n    var label = `DS: Handle Adapter#findBelongsTo of ${internalModel.modelName} : ${relationship.type}`;\n    promise = guardDestroyedStore(promise, store, label);\n    promise = _guard(promise, _bind(_objectIsAlive, internalModel));\n    return promise.then(adapterPayload => {\n      var serializer = store.serializerFor(relationship.type);\n      var payload = normalizeResponseHelper(serializer, store, modelClass, adapterPayload, null, 'findBelongsTo');\n\n      if (!payload.data) {\n        return null;\n      }\n\n      payload = syncRelationshipDataFromLink(store, payload, internalModel, relationship);\n      return store._push(payload);\n    }, null, `DS: Extract payload of ${internalModel.modelName} : ${relationship.type}`);\n  }\n  function _findAll(adapter, store, modelName, options) {\n    var modelClass = store.modelFor(modelName); // adapter.findAll depends on the class\n\n    var recordArray = store.peekAll(modelName);\n\n    var snapshotArray = recordArray._createSnapshot(options);\n\n    var promise = Ember.RSVP.Promise.resolve().then(() => adapter.findAll(store, modelClass, null, snapshotArray));\n    var label = 'DS: Handle Adapter#findAll of ' + modelClass;\n    promise = guardDestroyedStore(promise, store, label);\n    return promise.then(adapterPayload => {\n      ( !(payloadIsNotBlank(adapterPayload)) && Ember.assert(`You made a 'findAll' request for '${modelName}' records, but the adapter's response did not have any data`, payloadIsNotBlank(adapterPayload)));\n      var serializer = store.serializerFor(modelName);\n      var payload = normalizeResponseHelper(serializer, store, modelClass, adapterPayload, null, 'findAll');\n\n      store._push(payload);\n\n      store._didUpdateAll(modelName);\n\n      return recordArray;\n    }, null, 'DS: Extract payload of findAll ${modelName}');\n  }\n  function _query(adapter, store, modelName, query, recordArray, options) {\n    var modelClass = store.modelFor(modelName); // adapter.query needs the class\n\n    recordArray = recordArray || store.recordArrayManager.createAdapterPopulatedRecordArray(modelName, query);\n    var promise = Ember.RSVP.Promise.resolve().then(() => adapter.query(store, modelClass, query, recordArray, options));\n    var label = `DS: Handle Adapter#query of ${modelName}`;\n    promise = guardDestroyedStore(promise, store, label);\n    return promise.then(adapterPayload => {\n      var serializer = store.serializerFor(modelName);\n      var payload = normalizeResponseHelper(serializer, store, modelClass, adapterPayload, null, 'query');\n\n      var internalModels = store._push(payload);\n\n      ( !(Array.isArray(internalModels)) && Ember.assert('The response to store.query is expected to be an array but it was a single record. Please wrap your response in an array or use `store.queryRecord` to query for a single record.', Array.isArray(internalModels)));\n\n      if (recordArray) {\n        recordArray._setInternalModels(internalModels, payload);\n      } else {\n        recordArray = store.recordArrayManager.createAdapterPopulatedRecordArray(modelName, query, internalModels, payload);\n      }\n\n      return recordArray;\n    }, null, `DS: Extract payload of query ${modelName}`);\n  }\n  function _queryRecord(adapter, store, modelName, query, options) {\n    var modelClass = store.modelFor(modelName); // adapter.queryRecord needs the class\n\n    var promise = Ember.RSVP.Promise.resolve().then(() => adapter.queryRecord(store, modelClass, query, options));\n    var label = `DS: Handle Adapter#queryRecord of ${modelName}`;\n    promise = guardDestroyedStore(promise, store, label);\n    return promise.then(adapterPayload => {\n      var serializer = store.serializerFor(modelName);\n      var payload = normalizeResponseHelper(serializer, store, modelClass, adapterPayload, null, 'queryRecord');\n      ( !(!Array.isArray(payload.data)) && Ember.assert(`Expected the primary data returned by the serializer for a 'queryRecord' response to be a single object or null but instead it was an array.`, !Array.isArray(payload.data), {\n        id: 'ds.store.queryRecord-array-response'\n      }));\n      return store._push(payload);\n    }, null, `DS: Extract payload of queryRecord ${modelName}`);\n  }\n\n  /**\n    @module @ember-data/store\n  */\n\n  /**\n   * Use this brand to assign a string key to an interface\n   * for mapping the interface to a tightly coupled internal\n   * class implementation.\n   *\n   * This allows us to expose the interface publicly but\n   * seamlessly upgrade these interfaces for our own use\n   * internally when internal methods and properties are\n   * needed.\n   *\n   * @internal\n   */\n\n  var BRAND_SYMBOL = symbol('DEBUG-ts-brand');\n\n  /**\n    @module @ember-data/store\n  */\n\n  /**\n   * Casts a public interface to the matching internal class implementation\n   *\n   * @internal\n   */\n  function upgradeForInternal(external) {\n    return external;\n  }\n\n  class RecordDataStoreWrapper {\n    constructor(_store) {\n      this._store = _store;\n      this[BRAND_SYMBOL] = void 0;\n      this._willUpdateManyArrays = void 0;\n      this._pendingManyArrayUpdates = void 0;\n      this._willUpdateManyArrays = false;\n      this._pendingManyArrayUpdates = [];\n    }\n\n    get identifierCache() {\n      return identifierCacheFor(this._store);\n    }\n    /**\n     * Exists so that DefaultRecordData can check for model types\n     * in DEBUG for relationships. Should be refactored away.\n     *\n     * @internal\n     */\n\n\n    _hasModelFor(type) {\n      return this._store._hasModelFor(type);\n    }\n    /**\n     * @internal\n     */\n\n\n    _scheduleManyArrayUpdate(identifier, key) {\n      var pending = this._pendingManyArrayUpdates = this._pendingManyArrayUpdates || [];\n      pending.push(identifier, key);\n\n      if (this._willUpdateManyArrays === true) {\n        return;\n      }\n\n      this._willUpdateManyArrays = true;\n      var backburner = this._store._backburner;\n      backburner.join(() => {\n        backburner.schedule('syncRelationships', this, this._flushPendingManyArrayUpdates);\n      });\n    }\n\n    notifyErrorsChange(type, id, lid) {\n      var resource = constructResource(type, id, lid);\n      var identifier = identifierCacheFor(this._store).getOrCreateRecordIdentifier(resource);\n      var internalModel = internalModelFactoryFor(this._store).peek(identifier);\n\n      if (internalModel) {\n        internalModel.notifyErrorsChange();\n      }\n    }\n\n    _flushPendingManyArrayUpdates() {\n      if (this._willUpdateManyArrays === false) {\n        return;\n      }\n\n      var pending = this._pendingManyArrayUpdates;\n      this._pendingManyArrayUpdates = [];\n      this._willUpdateManyArrays = false;\n      var factory = internalModelFactoryFor(this._store);\n\n      for (var i = 0; i < pending.length; i += 2) {\n        var identifier = pending[i];\n        var _key = pending[i + 1];\n        var internalModel = factory.peek(identifier);\n\n        if (internalModel) {\n          internalModel.notifyHasManyChange(_key);\n        }\n      }\n    }\n\n    attributesDefinitionFor(type) {\n      return this._store._attributesDefinitionFor(type);\n    }\n\n    relationshipsDefinitionFor(type) {\n      return this._store._relationshipsDefinitionFor(type);\n    }\n\n    inverseForRelationship(type, key) {\n      var modelClass = this._store.modelFor(type);\n\n      var definition = upgradeForInternal(this.relationshipsDefinitionFor(type)[key]);\n\n      {\n        return definition._inverseKey(this._store, modelClass);\n      }\n    }\n\n    inverseIsAsyncForRelationship(type, key) {\n      var modelClass = this._store.modelFor(type);\n\n      var definition = upgradeForInternal(this.relationshipsDefinitionFor(type)[key]);\n\n      {\n        return definition._inverseIsAsync(this._store, modelClass);\n      }\n    }\n\n    notifyPropertyChange(type, id, lid, key) {\n      var resource = constructResource(type, id, lid);\n      var identifier = identifierCacheFor(this._store).getOrCreateRecordIdentifier(resource);\n      var internalModel = internalModelFactoryFor(this._store).peek(identifier);\n\n      if (internalModel) {\n        internalModel.notifyPropertyChange(key);\n      }\n    }\n\n    notifyHasManyChange(type, id, lid, key) {\n      var resource = constructResource(type, id, lid);\n      var identifier = identifierCacheFor(this._store).getOrCreateRecordIdentifier(resource);\n\n      this._scheduleManyArrayUpdate(identifier, key);\n    }\n\n    notifyBelongsToChange(type, id, lid, key) {\n      var resource = constructResource(type, id, lid);\n      var identifier = identifierCacheFor(this._store).getOrCreateRecordIdentifier(resource);\n      var internalModel = internalModelFactoryFor(this._store).peek(identifier);\n\n      if (internalModel) {\n        internalModel.notifyBelongsToChange(key);\n      }\n    }\n\n    notifyStateChange(type, id, lid, key) {\n      var resource = constructResource(type, id, lid);\n      var identifier = identifierCacheFor(this._store).getOrCreateRecordIdentifier(resource);\n      var internalModel = internalModelFactoryFor(this._store).peek(identifier);\n\n      if (internalModel) {\n        internalModel.notifyStateChange(key);\n      }\n    }\n\n    recordDataFor(type, id, lid) {\n      var identifier;\n      var isCreate = false;\n\n      if (!id && !lid) {\n        isCreate = true;\n        identifier = {\n          type\n        };\n      } else {\n        var resource = constructResource(type, id, lid);\n        identifier = identifierCacheFor(this._store).getOrCreateRecordIdentifier(resource);\n      }\n\n      return this._store.recordDataFor(identifier, isCreate);\n    }\n\n    setRecordId(type, id, lid) {\n      this._store.setRecordId(type, id, lid);\n    }\n\n    isRecordInUse(type, id, lid) {\n      var resource = constructResource(type, id, lid);\n      var identifier = identifierCacheFor(this._store).getOrCreateRecordIdentifier(resource);\n      var internalModel = internalModelFactoryFor(this._store).peek(identifier);\n\n      if (!internalModel) {\n        return false;\n      }\n\n      return internalModel.isRecordInUse();\n    }\n\n    disconnectRecord(type, id, lid) {\n      var resource = constructResource(type, id, lid);\n      var identifier = identifierCacheFor(this._store).getOrCreateRecordIdentifier(resource);\n      var internalModel = internalModelFactoryFor(this._store).peek(identifier);\n\n      if (internalModel) {\n        internalModel.destroyFromRecordData();\n      }\n    }\n\n  }\n\n  var _RecordData;\n\n  var emberRun$2 = Ember.run.backburner;\n  var {\n    ENV\n  } = Ember;\n\n  function freeze$1(obj) {\n    if (typeof Object.freeze === 'function') {\n      return Object.freeze(obj);\n    }\n\n    return obj;\n  }\n\n  function deprecateTestRegistration(factoryType, factoryName) {\n    ( Ember.deprecate(`You looked up the ${factoryType} \"${factoryName}\" but it was not found. Likely this means you are using a legacy ember-qunit moduleFor helper. Add \"needs: ['${factoryType}:${factoryName}']\", \"integration: true\", or refactor to modern syntax to resolve this deprecation.`, false, {\n      id: 'ember-data:-legacy-test-registrations',\n      until: '3.17'\n    }));\n  }\n  /**\n    The store contains all of the data for records loaded from the server.\n    It is also responsible for creating instances of `Model` that wrap\n    the individual data for a record, so that they can be bound to in your\n    Handlebars templates.\n\n    Define your application's store like this:\n\n    ```app/services/store.js\n    import Store from '@ember-data/store';\n\n    export default Store.extend({\n    });\n    ```\n\n    Most Ember.js applications will only have a single `Store` that is\n    automatically created by their `Ember.Application`.\n\n    You can retrieve models from the store in several ways. To retrieve a record\n    for a specific id, use `Store`'s `findRecord()` method:\n\n    ```javascript\n    store.findRecord('person', 123).then(function (person) {\n    });\n    ```\n\n    By default, the store will talk to your backend using a standard\n    REST mechanism. You can customize how the store talks to your\n    backend by specifying a custom adapter:\n\n    ```app/adapters/application.js\n    import Adapter from '@ember-data/adapter';\n\n    export default Adapter.extend({\n    });\n    ```\n\n    You can learn more about writing a custom adapter by reading the `Adapter`\n    documentation.\n\n    ### Store createRecord() vs. push() vs. pushPayload()\n\n    The store provides multiple ways to create new record objects. They have\n    some subtle differences in their use which are detailed below:\n\n    [createRecord](Store/methods/createRecord?anchor=createRecord) is used for creating new\n    records on the client side. This will return a new record in the\n    `created.uncommitted` state. In order to persist this record to the\n    backend, you will need to call `record.save()`.\n\n    [push](Store/methods/push?anchor=push) is used to notify Ember Data's store of new or\n    updated records that exist in the backend. This will return a record\n    in the `loaded.saved` state. The primary use-case for `store#push` is\n    to notify Ember Data about record updates (full or partial) that happen\n    outside of the normal adapter methods (for example\n    [SSE](http://dev.w3.org/html5/eventsource/) or [Web\n    Sockets](http://www.w3.org/TR/2009/WD-websockets-20091222/)).\n\n    [pushPayload](Store/methods/pushPayload?anchor=pushPayload) is a convenience wrapper for\n    `store#push` that will deserialize payloads if the\n    Serializer implements a `pushPayload` method.\n\n    Note: When creating a new record using any of the above methods\n    Ember Data will update `RecordArray`s such as those returned by\n    `store#peekAll()` or `store#findAll()`. This means any\n    data bindings or computed properties that depend on the RecordArray\n    will automatically be synced to include the new or updated record\n    values.\n\n    @class Store\n    @extends Ember.Service\n  */\n\n\n  class CoreStore extends Ember.Service {\n    /**\n     * EmberData specific backburner instance\n     */\n\n    /*\n      Ember Data uses several specialized micro-queues for organizing\n      and coalescing similar async work.\n       These queues are currently controlled by a flush scheduled into\n      ember-data's custom backburner instance.\n      */\n    // used for coalescing record save requests\n    // used for coalescing relationship updates\n    // used for coalescing internal model updates\n    // used to keep track of all the find requests that need to be coalesced\n    // DEBUG-only properties\n\n    /**\n      The default adapter to use to communicate to a backend server or\n      other persistence layer. This will be overridden by an application\n      adapter if present.\n       If you want to specify `app/adapters/custom.js` as a string, do:\n       ```js\n      import Store from '@ember-data/store';\n       export default Store.extend({\n        init() {\n          this._super(...arguments);\n          this.adapter = 'custom';\n        }\n      });\n      ```\n       @property adapter\n      @default '-json-api'\n      @type {String}\n    */\n\n    /**\n    This property returns the adapter, after resolving a possible\n    string key.\n     If the supplied `adapter` was a class, or a String property\n    path resolved to a class, this property will instantiate the\n    class.\n     This property is cacheable, so the same instance of a specified\n    adapter class should be used for the lifetime of the store.\n     @property defaultAdapter\n    @private\n    @return Adapter\n    */\n\n    /**\n      @method init\n      @private\n    */\n    constructor() {\n      super(...arguments);\n      this._backburner = backburner;\n      this.recordArrayManager = new RecordArrayManager({\n        store: this\n      });\n      this._notificationManager = void 0;\n      this._adapterCache = Object.create(null);\n      this._serializerCache = Object.create(null);\n      this._storeWrapper = new RecordDataStoreWrapper(this);\n      this._pendingSave = [];\n      this._updatedRelationships = [];\n      this._updatedInternalModels = [];\n      this._pendingFetch = new Map();\n      this._fetchManager = void 0;\n      this._schemaDefinitionService = void 0;\n      this._trackedAsyncRequests = void 0;\n      this.shouldAssertMethodCallsOnDestroyedStore = false;\n      this.shouldTrackAsyncRequests = false;\n      this.generateStackTracesForTrackedRequests = false;\n      this._trackAsyncRequestStart = void 0;\n      this._trackAsyncRequestEnd = void 0;\n      this.__asyncWaiter = void 0;\n\n      {\n        {\n          // support for legacy moduleFor style unit tests\n          // that did not include transforms in \"needs\"\n          // or which were not set to integration:true\n          // that were relying on ember-test-helpers\n          // doing an auto-registration of the transform\n          // or us doing one\n          var Mapping = {\n            date: 'DateTransform',\n            boolean: 'BooleanTransform',\n            number: 'NumberTransform',\n            string: 'StringTransform'\n          };\n          var shouldWarn = false;\n          var owner = Ember.getOwner(this);\n          Object.keys(Mapping).forEach(attributeType => {\n            var transformFactory = owner.factoryFor(`transform:${attributeType}`);\n\n            if (!transformFactory) {\n              // we don't deprecate this because the moduleFor style tests with the closed\n              // resolver will be deprecated on their own. When that deprecation completes\n              // we can drop this.\n              var Transform = require$1(`@ember-data/serializer/-private`)[Mapping[attributeType]];\n\n              owner.register(`transform:${attributeType}`, Transform);\n              shouldWarn = true;\n            }\n          });\n\n          if (shouldWarn) {\n            ( Ember.deprecate(`You are relying on the automatic registration of the transforms \"date\", \"number\", \"boolean\", and \"string\". Likely this means you are using a legacy ember-qunit moduleFor helper. Add \"needs: ['transform:date', 'transform:boolean', 'transform:number', 'transform:string']\", \"integration: true\", or refactor to modern syntax to resolve this deprecation.`, false, {\n              id: 'ember-data:-legacy-test-registrations',\n              until: '3.17'\n            }));\n          }\n        }\n\n        this.shouldAssertMethodCallsOnDestroyedStore = this.shouldAssertMethodCallsOnDestroyedStore || false;\n\n        if (this.shouldTrackAsyncRequests === undefined) {\n          this.shouldTrackAsyncRequests = false;\n        }\n\n        if (this.generateStackTracesForTrackedRequests === undefined) {\n          this.generateStackTracesForTrackedRequests = false;\n        }\n\n        this._trackedAsyncRequests = [];\n\n        this._trackAsyncRequestStart = label => {\n          var trace = 'set `store.generateStackTracesForTrackedRequests = true;` to get a detailed trace for where this request originated';\n\n          if (this.generateStackTracesForTrackedRequests) {\n            try {\n              throw new Error(`EmberData TrackedRequest: ${label}`);\n            } catch (e) {\n              trace = e;\n            }\n          }\n\n          var token = freeze$1({\n            label,\n            trace\n          });\n\n          this._trackedAsyncRequests.push(token);\n\n          return token;\n        };\n\n        this._trackAsyncRequestEnd = token => {\n          var index = this._trackedAsyncRequests.indexOf(token);\n\n          if (index === -1) {\n            throw new Error(`Attempted to end tracking for the following request but it was not being tracked:\\n${token}`);\n          }\n\n          this._trackedAsyncRequests.splice(index, 1);\n        };\n\n        this.__asyncWaiter = () => {\n          var shouldTrack = this.shouldTrackAsyncRequests;\n          var tracked = this._trackedAsyncRequests;\n          var isSettled = tracked.length === 0;\n          return shouldTrack !== true || isSettled;\n        };\n\n        Ember.Test.registerWaiter(this.__asyncWaiter);\n      }\n    }\n\n    getRequestStateService() {\n\n      assertInDebug('RequestService is not available unless the feature flag is on and running on a canary build', false);\n    }\n\n    get identifierCache() {\n      return identifierCacheFor(this);\n    }\n\n    _instantiateRecord(internalModel, modelName, recordData, identifier, properties) {\n\n      assertInDebug('should not be here, custom model class ff error', false);\n    }\n\n    _internalDeleteRecord(internalModel) {\n      internalModel.deleteRecord();\n    } // FeatureFlagged in the DSModelStore claas\n\n\n    _attributesDefinitionFor(modelName, identifier) {\n      if (identifier) {\n        return this.getSchemaDefinitionService().attributesDefinitionFor(identifier);\n      } else {\n        return this.getSchemaDefinitionService().attributesDefinitionFor(modelName);\n      }\n    }\n\n    _relationshipsDefinitionFor(modelName, identifier) {\n      if (identifier) {\n        return this.getSchemaDefinitionService().relationshipsDefinitionFor(identifier);\n      } else {\n        return this.getSchemaDefinitionService().relationshipsDefinitionFor(modelName);\n      }\n    }\n\n    registerSchemaDefinitionService(schema) {\n      this._schemaDefinitionService = schema;\n    }\n\n    getSchemaDefinitionService() {\n\n      assertInDebug('need to enable CUSTOM_MODEL_CLASS feature flag in order to access SchemaDefinitionService', false);\n    } // TODO Double check this return value is correct\n\n\n    _relationshipMetaFor(modelName, id, key) {\n      return this._relationshipsDefinitionFor(modelName)[key];\n    }\n\n    modelFor(modelName) {\n      {\n        assertDestroyedStoreOnly(this, 'modelFor');\n      }\n\n      return getShimClass(this, modelName);\n    } // Feature Flagged in DSModelStore\n\n    /*\n    Returns whether a ModelClass exists for a given modelName\n    This exists for legacy support for the RESTSerializer,\n    which due to how it must guess whether a key is a model\n    must query for whether a match exists.\n     We should investigate an RFC to make this public or removing\n    this requirement.\n     @private\n    */\n\n\n    _hasModelFor(modelName) {\n      ( !(Ember.isPresent(modelName)) && Ember.assert(`You need to pass a model name to the store's hasModelFor method`, Ember.isPresent(modelName)));\n      ( !(typeof modelName === 'string') && Ember.assert(`Passing classes to store methods has been removed. Please pass a dasherized string instead of ${modelName}`, typeof modelName === 'string'));\n      return this.getSchemaDefinitionService().doesTypeExist(modelName);\n    } // .....................\n    // . CREATE NEW RECORD .\n    // .....................\n\n    /**\n      Create a new record in the current store. The properties passed\n      to this method are set on the newly created record.\n       To create a new instance of a `Post`:\n       ```js\n      store.createRecord('post', {\n        title: 'Ember is awesome!'\n      });\n      ```\n       To create a new instance of a `Post` that has a relationship with a `User` record:\n       ```js\n      let user = this.store.peekRecord('user', 1);\n      store.createRecord('post', {\n        title: 'Ember is awesome!',\n        user: user\n      });\n      ```\n       @method createRecord\n      @param {String} modelName\n      @param {Object} inputProperties a hash of properties to set on the\n        newly created record.\n      @return {Model} record\n    */\n\n\n    createRecord(modelName, inputProperties) {\n      {\n        assertDestroyingStore(this, 'createRecord');\n      }\n\n      ( !(Ember.isPresent(modelName)) && Ember.assert(`You need to pass a model name to the store's createRecord method`, Ember.isPresent(modelName)));\n      ( !(typeof modelName === 'string') && Ember.assert(`Passing classes to store methods has been removed. Please pass a dasherized string instead of ${modelName}`, typeof modelName === 'string')); // This is wrapped in a `run.join` so that in test environments users do not need to manually wrap\n      //   calls to `createRecord`. The run loop usage here is because we batch the joining and updating\n      //   of record-arrays via ember's run loop, not our own.\n      //\n      //   to remove this, we would need to move to a new `async` API.\n\n      return emberRun$2.join(() => {\n        return this._backburner.join(() => {\n          var normalizedModelName = normalizeModelName(modelName);\n          var properties = Ember.assign({}, inputProperties); // If the passed properties do not include a primary key,\n          // give the adapter an opportunity to generate one. Typically,\n          // client-side ID generators will use something like uuid.js\n          // to avoid conflicts.\n\n          if (Ember.isNone(properties.id)) {\n            properties.id = this._generateId(normalizedModelName, properties);\n          } // Coerce ID to a string\n\n\n          properties.id = coerceId(properties.id);\n          var factory = internalModelFactoryFor(this);\n          var internalModel = factory.build({\n            type: normalizedModelName,\n            id: properties.id\n          });\n          internalModel.loadedData(); // TODO this exists just to proxy `isNew` to RecordData which is weird\n\n          internalModel.didCreateRecord();\n          return internalModel.getRecord(properties);\n        });\n      });\n    }\n    /**\n      If possible, this method asks the adapter to generate an ID for\n      a newly created record.\n       @method _generateId\n      @private\n      @param {String} modelName\n      @param {Object} properties from the new record\n      @return {String} if the adapter can generate one, an ID\n    */\n\n\n    _generateId(modelName, properties) {\n      var adapter = this.adapterFor(modelName);\n\n      if (adapter && adapter.generateIdForRecord) {\n        return adapter.generateIdForRecord(this, modelName, properties);\n      }\n\n      return null;\n    } // .................\n    // . DELETE RECORD .\n    // .................\n\n    /**\n      For symmetry, a record can be deleted via the store.\n       Example\n       ```javascript\n      let post = store.createRecord('post', {\n        title: 'Ember is awesome!'\n      });\n       store.deleteRecord(post);\n      ```\n       @method deleteRecord\n      @param {Model} record\n    */\n\n\n    deleteRecord(record) {\n      {\n        assertDestroyingStore(this, 'deleteRecord');\n      }\n\n      {\n        record.deleteRecord();\n      }\n    }\n    /**\n      For symmetry, a record can be unloaded via the store.\n      This will cause the record to be destroyed and freed up for garbage collection.\n       Example\n       ```javascript\n      store.findRecord('post', 1).then(function(post) {\n        store.unloadRecord(post);\n      });\n      ```\n       @method unloadRecord\n      @param {Model} record\n    */\n\n\n    unloadRecord(record) {\n      {\n        assertDestroyingStore(this, 'unloadRecord');\n      }\n\n      {\n        record.unloadRecord();\n      }\n    } // ................\n    // . FIND RECORDS .\n    // ................\n\n    /**\n      @method find\n      @param {String} modelName\n      @param {String|Integer} id\n      @param {Object} options\n      @return {Promise} promise\n      @private\n    */\n\n\n    find(modelName, id, options) {\n      {\n        assertDestroyingStore(this, 'find');\n      } // The default `model` hook in Route calls `find(modelName, id)`,\n      // that's why we have to keep this method around even though `findRecord` is\n      // the public way to get a record by modelName and id.\n\n\n      ( !(arguments.length !== 1) && Ember.assert(`Using store.find(type) has been removed. Use store.findAll(modelName) to retrieve all records for a given type.`, arguments.length !== 1));\n      ( !(!options) && Ember.assert(`Calling store.find(modelName, id, { preload: preload }) is no longer supported. Use store.findRecord(modelName, id, { preload: preload }) instead.`, !options));\n      ( !(arguments.length === 2) && Ember.assert(`You need to pass the model name and id to the store's find method`, arguments.length === 2));\n      ( !(typeof id === 'string' || typeof id === 'number') && Ember.assert(`You cannot pass '${id}' as id to the store's find method`, typeof id === 'string' || typeof id === 'number'));\n      ( !(typeof id !== 'object') && Ember.assert(`Calling store.find() with a query object is no longer supported. Use store.query() instead.`, typeof id !== 'object'));\n      ( !(typeof modelName === 'string') && Ember.assert(`Passing classes to store methods has been removed. Please pass a dasherized string instead of ${modelName}`, typeof modelName === 'string'));\n      return this.findRecord(modelName, id);\n    }\n    /**\n      This method returns a record for a given type and id combination.\n       The `findRecord` method will always resolve its promise with the same\n      object for a given type and `id`.\n       The `findRecord` method will always return a **promise** that will be\n      resolved with the record.\n       Example\n       ```app/routes/post.js\n      import Route from '@ember/routing/route';\n       export default Route.extend({\n        model(params) {\n          return this.store.findRecord('post', params.post_id);\n        }\n      });\n      ```\n       If the record is not yet available, the store will ask the adapter's `find`\n      method to find the necessary data. If the record is already present in the\n      store, it depends on the reload behavior _when_ the returned promise\n      resolves.\n       ### Preloading\n       You can optionally `preload` specific attributes and relationships that you know of\n      by passing them via the passed `options`.\n       For example, if your Ember route looks like `/posts/1/comments/2` and your API route\n      for the comment also looks like `/posts/1/comments/2` if you want to fetch the comment\n      without fetching the post you can pass in the post to the `findRecord` call:\n       ```javascript\n      store.findRecord('comment', 2, { preload: { post: 1 } });\n      ```\n       If you have access to the post model you can also pass the model itself:\n       ```javascript\n      store.findRecord('post', 1).then(function (myPostModel) {\n        store.findRecord('comment', 2, { post: myPostModel });\n      });\n      ```\n       ### Reloading\n       The reload behavior is configured either via the passed `options` hash or\n      the result of the adapter's `shouldReloadRecord`.\n       If `{ reload: true }` is passed or `adapter.shouldReloadRecord` evaluates\n      to `true`, then the returned promise resolves once the adapter returns\n      data, regardless if the requested record is already in the store:\n       ```js\n      store.push({\n        data: {\n          id: 1,\n          type: 'post',\n          revision: 1\n        }\n      });\n       // adapter#findRecord resolves with\n      // [\n      //   {\n      //     id: 1,\n      //     type: 'post',\n      //     revision: 2\n      //   }\n      // ]\n      store.findRecord('post', 1, { reload: true }).then(function(post) {\n        post.get('revision'); // 2\n      });\n      ```\n       If no reload is indicated via the above mentioned ways, then the promise\n      immediately resolves with the cached version in the store.\n       ### Background Reloading\n       Optionally, if `adapter.shouldBackgroundReloadRecord` evaluates to `true`,\n      then a background reload is started, which updates the records' data, once\n      it is available:\n       ```js\n      // app/adapters/post.js\n      import ApplicationAdapter from \"./application\";\n       export default ApplicationAdapter.extend({\n        shouldReloadRecord(store, snapshot) {\n          return false;\n        },\n         shouldBackgroundReloadRecord(store, snapshot) {\n          return true;\n        }\n      });\n       // ...\n       store.push({\n        data: {\n          id: 1,\n          type: 'post',\n          revision: 1\n        }\n      });\n       let blogPost = store.findRecord('post', 1).then(function(post) {\n        post.get('revision'); // 1\n      });\n       // later, once adapter#findRecord resolved with\n      // [\n      //   {\n      //     id: 1,\n      //     type: 'post',\n      //     revision: 2\n      //   }\n      // ]\n       blogPost.get('revision'); // 2\n      ```\n       If you would like to force or prevent background reloading, you can set a\n      boolean value for `backgroundReload` in the options object for\n      `findRecord`.\n       ```app/routes/post/edit.js\n      import Route from '@ember/routing/route';\n       export default Route.extend({\n        model(params) {\n          return this.store.findRecord('post', params.post_id, { backgroundReload: false });\n        }\n      });\n      ```\n       If you pass an object on the `adapterOptions` property of the options\n      argument it will be passed to you adapter via the snapshot\n       ```app/routes/post/edit.js\n      import Route from '@ember/routing/route';\n       export default Route.extend({\n        model(params) {\n          return this.store.findRecord('post', params.post_id, {\n            adapterOptions: { subscribe: false }\n          });\n        }\n      });\n      ```\n       ```app/adapters/post.js\n      import MyCustomAdapter from './custom-adapter';\n       export default MyCustomAdapter.extend({\n        findRecord(store, type, id, snapshot) {\n          if (snapshot.adapterOptions.subscribe) {\n            // ...\n          }\n          // ...\n        }\n      });\n      ```\n       See [peekRecord](Store/methods/peekRecord?anchor=peekRecord) to get the cached version of a record.\n       ### Retrieving Related Model Records\n       If you use an adapter such as Ember's default\n      [`JSONAPIAdapter`](/ember-data/release/classes/JSONAPIAdapter)\n      that supports the [JSON API specification](http://jsonapi.org/) and if your server\n      endpoint supports the use of an\n      ['include' query parameter](http://jsonapi.org/format/#fetching-includes),\n      you can use `findRecord()` to automatically retrieve additional records related to\n      the one you request by supplying an `include` parameter in the `options` object.\n       For example, given a `post` model that has a `hasMany` relationship with a `comment`\n      model, when we retrieve a specific post we can have the server also return that post's\n      comments in the same request:\n       ```app/routes/post.js\n      import Route from '@ember/routing/route';\n       export default Route.extend({\n        model(params) {\n          return this.store.findRecord('post', params.post_id, { include: 'comments' });\n        }\n      });\n       ```\n      In this case, the post's comments would then be available in your template as\n      `model.comments`.\n       Multiple relationships can be requested using an `include` parameter consisting of a\n      comma-separated list (without white-space) while nested relationships can be specified\n      using a dot-separated sequence of relationship names. So to request both the post's\n      comments and the authors of those comments the request would look like this:\n       ```app/routes/post.js\n      import Route from '@ember/routing/route';\n       export default Route.extend({\n        model(params) {\n          return this.store.findRecord('post', params.post_id, { include: 'comments,comments.author' });\n        }\n      });\n       ```\n       @since 1.13.0\n      @method findRecord\n      @param {String} modelName\n      @param {(String|Integer)} id\n      @param {Object} [options]\n      @param {Object} preload - optional set of attributes and relationships passed in either as IDs or as actual models\n      @return {Promise} promise\n    */\n\n\n    findRecord(modelName, id, options) {\n      {\n        assertDestroyingStore(this, 'findRecord');\n      }\n\n      ( !(Ember.isPresent(modelName)) && Ember.assert(`You need to pass a model name to the store's findRecord method`, Ember.isPresent(modelName)));\n      ( !(typeof modelName === 'string') && Ember.assert(`Passing classes to store methods has been removed. Please pass a dasherized string instead of ${modelName}`, typeof modelName === 'string'));\n      var type = normalizeModelName(modelName);\n      var normalizedId = ensureStringId(id);\n      var resource = constructResource(type, normalizedId);\n      var internalModel = internalModelFactoryFor(this).lookup(resource);\n      options = options || {};\n\n      if (!this.hasRecordForId(type, normalizedId)) {\n        return this._findByInternalModel(internalModel, options);\n      }\n\n      var fetchedInternalModel = this._findRecord(internalModel, options);\n\n      return promiseRecord(fetchedInternalModel, `DS: Store#findRecord ${type} with id: ${id}`);\n    }\n\n    _findRecord(internalModel, options) {\n      // Refetch if the reload option is passed\n      if (options.reload) {\n        return this._scheduleFetch(internalModel, options);\n      }\n\n      var snapshot = internalModel.createSnapshot(options);\n      var adapter = this.adapterFor(internalModel.modelName); // Refetch the record if the adapter thinks the record is stale\n\n      if (typeof options.reload === 'undefined' && adapter.shouldReloadRecord && adapter.shouldReloadRecord(this, snapshot)) {\n        return this._scheduleFetch(internalModel, options);\n      }\n\n      if (options.backgroundReload === false) {\n        return Ember.RSVP.Promise.resolve(internalModel);\n      } // Trigger the background refetch if backgroundReload option is passed\n\n\n      if (options.backgroundReload || !adapter.shouldBackgroundReloadRecord || adapter.shouldBackgroundReloadRecord(this, snapshot)) {\n        this._scheduleFetch(internalModel, options);\n      } // Return the cached record\n\n\n      return Ember.RSVP.Promise.resolve(internalModel);\n    }\n\n    _findByInternalModel(internalModel, options = {}) {\n      if (options.preload) {\n        internalModel.preloadData(options.preload);\n      }\n\n      var fetchedInternalModel = this._findEmptyInternalModel(internalModel, options);\n\n      return promiseRecord(fetchedInternalModel, `DS: Store#findRecord ${internalModel.modelName} with id: ${internalModel.id}`);\n    }\n\n    _findEmptyInternalModel(internalModel, options) {\n      if (internalModel.isEmpty()) {\n        return this._scheduleFetch(internalModel, options);\n      } //TODO double check about reloading\n\n\n      {\n        if (internalModel.isLoading()) {\n          return internalModel._promiseProxy;\n        }\n      }\n\n      return Ember.RSVP.Promise.resolve(internalModel);\n    }\n    /**\n      This method makes a series of requests to the adapter's `find` method\n      and returns a promise that resolves once they are all loaded.\n       @private\n      @method findByIds\n      @param {String} modelName\n      @param {Array} ids\n      @return {Promise} promise\n    */\n\n\n    findByIds(modelName, ids) {\n      {\n        assertDestroyingStore(this, 'findByIds');\n      }\n\n      ( !(Ember.isPresent(modelName)) && Ember.assert(`You need to pass a model name to the store's findByIds method`, Ember.isPresent(modelName)));\n      ( !(typeof modelName === 'string') && Ember.assert(`Passing classes to store methods has been removed. Please pass a dasherized string instead of ${modelName}`, typeof modelName === 'string'));\n      var promises = new Array(ids.length);\n      var normalizedModelName = normalizeModelName(modelName);\n\n      for (var i = 0; i < ids.length; i++) {\n        promises[i] = this.findRecord(normalizedModelName, ids[i]);\n      }\n\n      return promiseArray(Ember.RSVP.all(promises).then(Ember.A, null, `DS: Store#findByIds of ${normalizedModelName} complete`));\n    }\n    /**\n      This method is called by `findRecord` if it discovers that a particular\n      type/id pair hasn't been loaded yet to kick off a request to the\n      adapter.\n       @method _fetchRecord\n      @private\n      @param {InternalModel} internalModel model\n      @return {Promise} promise\n     */\n\n\n    _fetchRecord(internalModel, options) {\n      var modelName = internalModel.modelName;\n      var adapter = this.adapterFor(modelName);\n      ( !(adapter) && Ember.assert(`You tried to find a record but you have no adapter (for ${modelName})`, adapter));\n      ( !(typeof adapter.findRecord === 'function') && Ember.assert(`You tried to find a record but your adapter (for ${modelName}) does not implement 'findRecord'`, typeof adapter.findRecord === 'function'));\n      return _find(adapter, this, internalModel.type, internalModel.id, internalModel, options);\n    }\n\n    _scheduleFetchMany(internalModels, options) {\n      var fetches = new Array(internalModels.length);\n\n      for (var i = 0; i < internalModels.length; i++) {\n        fetches[i] = this._scheduleFetch(internalModels[i], options);\n      }\n\n      return Ember.RSVP.Promise.all(fetches);\n    }\n\n    _scheduleFetchThroughFetchManager(internalModel, options = {}) {\n      var generateStackTrace = this.generateStackTracesForTrackedRequests; // TODO  remove this once we dont rely on state machine\n\n      internalModel.loadingData();\n      var identifier = internalModel.identifier;\n      assertIdentifierHasId(identifier);\n\n      var promise = this._fetchManager.scheduleFetch(identifier, options, generateStackTrace);\n\n      return promise.then(payload => {\n        // ensure that regardless of id returned we assign to the correct record\n        if (payload.data && !Array.isArray(payload.data)) {\n          payload.data.lid = identifier.lid;\n        } // Returning this._push here, breaks typing but not any tests, invesstigate potential missing tests\n\n\n        var potentiallyNewIm = this._push(payload);\n\n        if (potentiallyNewIm && !Array.isArray(potentiallyNewIm)) {\n          return potentiallyNewIm;\n        } else {\n          return internalModel;\n        }\n      }, error => {\n        // TODO  remove this once we dont rely on state machine\n        internalModel.notFound();\n\n        if (internalModel.isEmpty()) {\n          internalModel.unloadRecord();\n        }\n\n        throw error;\n      });\n    }\n\n    _scheduleFetch(internalModel, options) {\n      {\n        if (internalModel._promiseProxy) {\n          return internalModel._promiseProxy;\n        }\n\n        var {\n          id,\n          modelName\n        } = internalModel;\n        var resolver = Ember.RSVP.defer(`Fetching ${modelName}' with id: ${id}`);\n        var pendingFetchItem = {\n          internalModel,\n          resolver,\n          options\n        };\n\n        {\n          if (this.generateStackTracesForTrackedRequests === true) {\n            var trace;\n\n            try {\n              throw new Error(`Trace Origin for scheduled fetch for ${modelName}:${id}.`);\n            } catch (e) {\n              trace = e;\n            } // enable folks to discover the origin of this findRecord call when\n            // debugging. Ideally we would have a tracked queue for requests with\n            // labels or local IDs that could be used to merge this trace with\n            // the trace made available when we detect an async leak\n\n\n            pendingFetchItem.trace = trace;\n          }\n        }\n\n        var promise = resolver.promise;\n        internalModel.loadingData(promise);\n\n        if (this._pendingFetch.size === 0) {\n          emberRun$2.schedule('actions', this, this.flushAllPendingFetches);\n        }\n\n        var fetches = this._pendingFetch;\n        var pending = fetches.get(modelName);\n\n        if (pending === undefined) {\n          pending = [];\n          fetches.set(modelName, pending);\n        }\n\n        pending.push(pendingFetchItem);\n        return promise;\n      }\n    }\n\n    flushAllPendingFetches() {\n      {\n        if (this.isDestroyed || this.isDestroying) {\n          return;\n        }\n\n        this._pendingFetch.forEach(this._flushPendingFetchForType, this);\n\n        this._pendingFetch.clear();\n      }\n    }\n\n    _flushPendingFetchForType(pendingFetchItems, modelName) {\n      var store = this;\n      var adapter = store.adapterFor(modelName);\n      var shouldCoalesce = !!adapter.findMany && adapter.coalesceFindRequests;\n      var totalItems = pendingFetchItems.length;\n      var internalModels = new Array(totalItems);\n      var seeking = Object.create(null);\n      var optionsMap = new WeakMap();\n\n      for (var _i = 0; _i < totalItems; _i++) {\n        var pendingItem = pendingFetchItems[_i];\n        var _internalModel = pendingItem.internalModel;\n        internalModels[_i] = _internalModel;\n        optionsMap.set(_internalModel, pendingItem.options); // We can remove this \"not null\" cast once we have enough typing\n        // to know we are only dealing with ExistingResourceIdentifierObjects\n\n        seeking[_internalModel.id] = pendingItem;\n      }\n\n      function _fetchRecord(recordResolverPair) {\n        var recordFetch = store._fetchRecord(recordResolverPair.internalModel, recordResolverPair.options);\n\n        recordResolverPair.resolver.resolve(recordFetch);\n      }\n\n      function handleFoundRecords(foundInternalModels, expectedInternalModels) {\n        // resolve found records\n        var found = Object.create(null);\n\n        for (var _i2 = 0, _l = foundInternalModels.length; _i2 < _l; _i2++) {\n          var _internalModel2 = foundInternalModels[_i2]; // We can remove this \"not null\" cast once we have enough typing\n          // to know we are only dealing with ExistingResourceIdentifierObjects\n\n          var _pair = seeking[_internalModel2.id];\n          found[_internalModel2.id] = _internalModel2;\n\n          if (_pair) {\n            var resolver = _pair.resolver;\n            resolver.resolve(_internalModel2);\n          }\n        } // reject missing records\n\n\n        var missingInternalModels = [];\n\n        for (var _i3 = 0, _l2 = expectedInternalModels.length; _i3 < _l2; _i3++) {\n          var _internalModel3 = expectedInternalModels[_i3]; // We can remove this \"not null\" cast once we have enough typing\n          // to know we are only dealing with ExistingResourceIdentifierObjects\n\n          if (!found[_internalModel3.id]) {\n            missingInternalModels.push(_internalModel3);\n          }\n        }\n\n        if (missingInternalModels.length) {\n          ( Ember.warn('Ember Data expected to find records with the following ids in the adapter response but they were missing: [ \"' + missingInternalModels.map(r => r.id).join('\", \"') + '\" ]', false, {\n            id: 'ds.store.missing-records-from-adapter'\n          }));\n          rejectInternalModels(missingInternalModels);\n        }\n      }\n\n      function rejectInternalModels(internalModels, error) {\n        for (var _i4 = 0, _l3 = internalModels.length; _i4 < _l3; _i4++) {\n          var _internalModel4 = internalModels[_i4]; // We can remove this \"not null\" cast once we have enough typing\n          // to know we are only dealing with ExistingResourceIdentifierObjects\n\n          var _pair2 = seeking[_internalModel4.id];\n\n          if (_pair2) {\n            _pair2.resolver.reject(error || new Error(`Expected: '${_internalModel4}' to be present in the adapter provided payload, but it was not found.`));\n          }\n        }\n      }\n\n      if (shouldCoalesce) {\n        // TODO: Improve records => snapshots => records => snapshots\n        //\n        // We want to provide records to all store methods and snapshots to all\n        // adapter methods. To make sure we're doing that we're providing an array\n        // of snapshots to adapter.groupRecordsForFindMany(), which in turn will\n        // return grouped snapshots instead of grouped records.\n        //\n        // But since the _findMany() finder is a store method we need to get the\n        // records from the grouped snapshots even though the _findMany() finder\n        // will once again convert the records to snapshots for adapter.findMany()\n        var snapshots = new Array(totalItems);\n\n        for (var _i5 = 0; _i5 < totalItems; _i5++) {\n          snapshots[_i5] = internalModels[_i5].createSnapshot(optionsMap.get(internalModel));\n        }\n\n        var groups;\n\n        if (adapter.groupRecordsForFindMany) {\n          groups = adapter.groupRecordsForFindMany(this, snapshots);\n        } else {\n          groups = [snapshots];\n        }\n\n        for (var i = 0, l = groups.length; i < l; i++) {\n          var group = groups[i];\n          var totalInGroup = groups[i].length;\n          var ids = new Array(totalInGroup);\n          var groupedInternalModels = new Array(totalInGroup);\n\n          for (var j = 0; j < totalInGroup; j++) {\n            var internalModel = group[j]._internalModel;\n            groupedInternalModels[j] = internalModel;\n            ids[j] = internalModel.id;\n          }\n\n          if (totalInGroup > 1) {\n            (function (groupedInternalModels) {\n              _findMany(adapter, store, modelName, ids, groupedInternalModels, optionsMap).then(function (foundInternalModels) {\n                handleFoundRecords(foundInternalModels, groupedInternalModels);\n              }).catch(function (error) {\n                rejectInternalModels(groupedInternalModels, error);\n              });\n            })(groupedInternalModels);\n          } else if (ids.length === 1) {\n            var pair = seeking[groupedInternalModels[0].id];\n\n            _fetchRecord(pair);\n          } else {\n            ( Ember.assert(\"You cannot return an empty array from adapter's method groupRecordsForFindMany\", false));\n          }\n        }\n      } else {\n        for (var _i6 = 0; _i6 < totalItems; _i6++) {\n          _fetchRecord(pendingFetchItems[_i6]);\n        }\n      }\n    }\n    /**\n      Get the reference for the specified record.\n       Example\n       ```javascript\n      let userRef = store.getReference('user', 1);\n       // check if the user is loaded\n      let isLoaded = userRef.value() !== null;\n       // get the record of the reference (null if not yet available)\n      let user = userRef.value();\n       // get the identifier of the reference\n      if (userRef.remoteType() === 'id') {\n      let id = userRef.id();\n      }\n       // load user (via store.find)\n      userRef.load().then(...)\n       // or trigger a reload\n      userRef.reload().then(...)\n       // provide data for reference\n      userRef.push({ id: 1, username: '@user' }).then(function(user) {\n        userRef.value() === user;\n      });\n      ```\n       @method getReference\n      @param {String} modelName\n      @param {String|Integer} id\n      @since 2.5.0\n      @return {RecordReference}\n    */\n\n\n    getReference(modelName, id) {\n      {\n        assertDestroyingStore(this, 'getReference');\n      }\n\n      var type = normalizeModelName(modelName);\n      var normalizedId = ensureStringId(id);\n      var resource = constructResource(type, normalizedId);\n      return internalModelFactoryFor(this).lookup(resource).recordReference;\n    }\n    /**\n      Get a record by a given type and ID without triggering a fetch.\n       This method will synchronously return the record if it is available in the store,\n      otherwise it will return `null`. A record is available if it has been fetched earlier, or\n      pushed manually into the store.\n       See [findRecord](Store/methods/findRecord?anchor=findRecord) if you would like to request this record from the backend.\n       _Note: This is a synchronous method and does not return a promise._\n       ```js\n      let post = store.peekRecord('post', 1);\n       post.get('id'); // 1\n      ```\n       @since 1.13.0\n      @method peekRecord\n      @param {String} modelName\n      @param {String|Integer} id\n      @return {Model|null} record\n    */\n\n\n    peekRecord(modelName, id) {\n      {\n        assertDestroyingStore(this, 'peekRecord');\n      }\n\n      ( !(Ember.isPresent(modelName)) && Ember.assert(`You need to pass a model name to the store's peekRecord method`, Ember.isPresent(modelName)));\n      ( !(typeof modelName === 'string') && Ember.assert(`Passing classes to store methods has been removed. Please pass a dasherized string instead of ${modelName}`, typeof modelName === 'string'));\n      var type = normalizeModelName(modelName);\n      var normalizedId = ensureStringId(id);\n\n      if (this.hasRecordForId(type, normalizedId)) {\n        var resource = constructResource(type, normalizedId);\n        return internalModelFactoryFor(this).lookup(resource).getRecord();\n      } else {\n        return null;\n      }\n    }\n    /**\n      This method is called by the record's `reload` method.\n       This method calls the adapter's `find` method, which returns a promise. When\n      **that** promise resolves, `_reloadRecord` will resolve the promise returned\n      by the record's `reload`.\n       @method _reloadRecord\n      @private\n      @param {Model} internalModel\n      @param options optional to include adapterOptions\n      @return {Promise} promise\n    */\n\n\n    _reloadRecord(internalModel, options) {\n\n      var {\n        id,\n        modelName\n      } = internalModel;\n      var adapter = this.adapterFor(modelName);\n      ( !(id) && Ember.assert(`You cannot reload a record without an ID`, id));\n      ( !(adapter) && Ember.assert(`You tried to reload a record but you have no adapter (for ${modelName})`, adapter));\n      ( !(typeof adapter.findRecord === 'function' || typeof adapter.find === 'function') && Ember.assert(`You tried to reload a record but your adapter does not implement 'findRecord'`, typeof adapter.findRecord === 'function' || typeof adapter.find === 'function'));\n      return this._scheduleFetch(internalModel, options);\n    }\n    /**\n     This method returns true if a record for a given modelName and id is already\n     loaded in the store. Use this function to know beforehand if a findRecord()\n     will result in a request or that it will be a cache hit.\n      Example\n      ```javascript\n     store.hasRecordForId('post', 1); // false\n     store.findRecord('post', 1).then(function() {\n       store.hasRecordForId('post', 1); // true\n     });\n     ```\n       @method hasRecordForId\n      @param {String} modelName\n      @param {(String|Integer)} id\n      @return {Boolean}\n    */\n\n\n    hasRecordForId(modelName, id) {\n      {\n        assertDestroyingStore(this, 'hasRecordForId');\n      }\n\n      ( !(Ember.isPresent(modelName)) && Ember.assert(`You need to pass a model name to the store's hasRecordForId method`, Ember.isPresent(modelName)));\n      ( !(typeof modelName === 'string') && Ember.assert(`Passing classes to store methods has been removed. Please pass a dasherized string instead of ${modelName}`, typeof modelName === 'string'));\n      var type = normalizeModelName(modelName);\n      var trueId = ensureStringId(id);\n      var resource = {\n        type,\n        id: trueId\n      };\n      var identifier = identifierCacheFor(this).peekRecordIdentifier(resource);\n      var internalModel = identifier && internalModelFactoryFor(this).peek(identifier);\n      return !!internalModel && internalModel.isLoaded();\n    }\n    /**\n      Returns id record for a given type and ID. If one isn't already loaded,\n      it builds a new record and leaves it in the `empty` state.\n       @method recordForId\n      @private\n      @param {String} modelName\n      @param {(String|Integer)} id\n      @return {Model} record\n    */\n\n\n    recordForId(modelName, id) {\n      {\n        assertDestroyingStore(this, 'recordForId');\n      }\n\n      ( !(Ember.isPresent(modelName)) && Ember.assert(`You need to pass a model name to the store's recordForId method`, Ember.isPresent(modelName)));\n      ( !(typeof modelName === 'string') && Ember.assert(`Passing classes to store methods has been removed. Please pass a dasherized string instead of ${modelName}`, typeof modelName === 'string'));\n      var resource = constructResource(modelName, ensureStringId(id));\n      return internalModelFactoryFor(this).lookup(resource).getRecord();\n    }\n    /**\n      @method findMany\n      @private\n      @param {Array} internalModels\n      @return {Promise} promise\n    */\n\n\n    findMany(internalModels, options) {\n      {\n        assertDestroyingStore(this, 'findMany');\n      }\n\n      var finds = new Array(internalModels.length);\n\n      for (var i = 0; i < internalModels.length; i++) {\n        finds[i] = this._findEmptyInternalModel(internalModels[i], options);\n      }\n\n      return Ember.RSVP.Promise.all(finds);\n    }\n    /**\n      If a relationship was originally populated by the adapter as a link\n      (as opposed to a list of IDs), this method is called when the\n      relationship is fetched.\n       The link (which is usually a URL) is passed through unchanged, so the\n      adapter can make whatever request it wants.\n       The usual use-case is for the server to register a URL as a link, and\n      then use that URL in the future to make a request for the relationship.\n       @method findHasMany\n      @private\n      @param {InternalModel} internalModel\n      @param {any} link\n      @param {(Relationship)} relationship\n      @return {Promise} promise\n    */\n\n\n    findHasMany(internalModel, link, relationship, options) {\n      {\n        assertDestroyingStore(this, 'findHasMany');\n      }\n\n      var adapter = this.adapterFor(internalModel.modelName);\n      ( !(adapter) && Ember.assert(`You tried to load a hasMany relationship but you have no adapter (for ${internalModel.modelName})`, adapter));\n      ( !(typeof adapter.findHasMany === 'function') && Ember.assert(`You tried to load a hasMany relationship from a specified 'link' in the original payload but your adapter does not implement 'findHasMany'`, typeof adapter.findHasMany === 'function'));\n      return _findHasMany(adapter, this, internalModel, link, relationship, options);\n    }\n\n    _findHasManyByJsonApiResource(resource, parentInternalModel, relationshipMeta, options) {\n      if (!resource) {\n        return Ember.RSVP.resolve([]);\n      }\n\n      var adapter = this.adapterFor(relationshipMeta.type);\n      var {\n        relationshipIsStale,\n        hasDematerializedInverse,\n        hasAnyRelationshipData,\n        relationshipIsEmpty,\n        shouldForceReload\n      } = resource._relationship;\n      var allInverseRecordsAreLoaded = areAllInverseRecordsLoaded(this, resource);\n      var shouldFindViaLink = resource.links && resource.links.related && (typeof adapter.findHasMany === 'function' || typeof resource.data === 'undefined') && (shouldForceReload || hasDematerializedInverse || relationshipIsStale || !allInverseRecordsAreLoaded && !relationshipIsEmpty); // fetch via link\n\n      if (shouldFindViaLink) {\n        return this.findHasMany(parentInternalModel, resource.links.related, relationshipMeta, options);\n      }\n\n      var preferLocalCache = hasAnyRelationshipData && !relationshipIsEmpty;\n      var hasLocalPartialData = hasDematerializedInverse || relationshipIsEmpty && Array.isArray(resource.data) && resource.data.length > 0; // fetch using data, pulling from local cache if possible\n\n      if (!shouldForceReload && !relationshipIsStale && (preferLocalCache || hasLocalPartialData)) {\n        var internalModels = resource.data.map(json => this._internalModelForResource(json));\n        return this.findMany(internalModels, options);\n      }\n\n      var hasData = hasAnyRelationshipData && !relationshipIsEmpty; // fetch by data\n\n      if (hasData || hasLocalPartialData) {\n        var _internalModels = resource.data.map(json => this._internalModelForResource(json));\n\n        return this._scheduleFetchMany(_internalModels, options);\n      } // we were explicitly told we have no data and no links.\n      //   TODO if the relationshipIsStale, should we hit the adapter anyway?\n\n\n      return Ember.RSVP.resolve([]);\n    }\n\n    _getHasManyByJsonApiResource(resource) {\n      var internalModels = [];\n\n      if (resource && resource.data) {\n        internalModels = resource.data.map(reference => this._internalModelForResource(reference));\n      }\n\n      return internalModels;\n    }\n    /**\n      @method findBelongsTo\n      @private\n      @param {InternalModel} internalModel\n      @param {any} link\n      @param {Relationship} relationship\n      @return {Promise} promise\n    */\n\n\n    findBelongsTo(internalModel, link, relationship, options) {\n      {\n        assertDestroyingStore(this, 'findBelongsTo');\n      }\n\n      var adapter = this.adapterFor(internalModel.modelName);\n      ( !(adapter) && Ember.assert(`You tried to load a belongsTo relationship but you have no adapter (for ${internalModel.modelName})`, adapter));\n      ( !(typeof adapter.findBelongsTo === 'function') && Ember.assert(`You tried to load a belongsTo relationship from a specified 'link' in the original payload but your adapter does not implement 'findBelongsTo'`, typeof adapter.findBelongsTo === 'function'));\n      return _findBelongsTo(adapter, this, internalModel, link, relationship, options);\n    }\n\n    _fetchBelongsToLinkFromResource(resource, parentInternalModel, relationshipMeta, options) {\n      if (!resource || !resource.links || !resource.links.related) {\n        // should we warn here, not sure cause its an internal method\n        return Ember.RSVP.resolve(null);\n      }\n\n      return this.findBelongsTo(parentInternalModel, resource.links.related, relationshipMeta, options).then(internalModel => {\n        return internalModel ? internalModel.getRecord() : null;\n      });\n    }\n\n    _findBelongsToByJsonApiResource(resource, parentInternalModel, relationshipMeta, options) {\n      if (!resource) {\n        return Ember.RSVP.resolve(null);\n      }\n\n      var internalModel = resource.data ? this._internalModelForResource(resource.data) : null;\n      var {\n        relationshipIsStale,\n        hasDematerializedInverse,\n        hasAnyRelationshipData,\n        relationshipIsEmpty,\n        shouldForceReload\n      } = resource._relationship;\n      var allInverseRecordsAreLoaded = areAllInverseRecordsLoaded(this, resource);\n      var shouldFindViaLink = resource.links && resource.links.related && (shouldForceReload || hasDematerializedInverse || relationshipIsStale || !allInverseRecordsAreLoaded && !relationshipIsEmpty);\n\n      if (internalModel) {\n        // short circuit if we are already loading\n        {\n          if (internalModel.isLoading()) {\n            return internalModel._promiseProxy.then(() => {\n              return internalModel.getRecord();\n            });\n          }\n        }\n      } // fetch via link\n\n\n      if (shouldFindViaLink) {\n        return this._fetchBelongsToLinkFromResource(resource, parentInternalModel, relationshipMeta, options);\n      }\n\n      var preferLocalCache = hasAnyRelationshipData && allInverseRecordsAreLoaded && !relationshipIsEmpty;\n      var hasLocalPartialData = hasDematerializedInverse || relationshipIsEmpty && resource.data; // null is explicit empty, undefined is \"we don't know anything\"\n\n      var localDataIsEmpty = resource.data === undefined || resource.data === null; // fetch using data, pulling from local cache if possible\n\n      if (!shouldForceReload && !relationshipIsStale && (preferLocalCache || hasLocalPartialData)) {\n        /*\n          We have canonical data, but our local state is empty\n         */\n        if (localDataIsEmpty) {\n          return Ember.RSVP.resolve(null);\n        }\n\n        return this._findByInternalModel(internalModel, options);\n      }\n\n      var resourceIsLocal = !localDataIsEmpty && resource.data.id === null;\n\n      if (internalModel && resourceIsLocal) {\n        return Ember.RSVP.resolve(internalModel.getRecord());\n      } // fetch by data\n\n\n      if (internalModel && !localDataIsEmpty) {\n        return this._scheduleFetch(internalModel, options).then(() => {\n          return internalModel.getRecord();\n        });\n      } // we were explicitly told we have no data and no links.\n      //   TODO if the relationshipIsStale, should we hit the adapter anyway?\n\n\n      return Ember.RSVP.resolve(null);\n    }\n    /**\n      This method delegates a query to the adapter. This is the one place where\n      adapter-level semantics are exposed to the application.\n       Each time this method is called a new request is made through the adapter.\n       Exposing queries this way seems preferable to creating an abstract query\n      language for all server-side queries, and then require all adapters to\n      implement them.\n       ---\n       If you do something like this:\n       ```javascript\n      store.query('person', { page: 1 });\n      ```\n       The request made to the server will look something like this:\n       ```\n      GET \"/api/v1/person?page=1\"\n      ```\n       ---\n       If you do something like this:\n       ```javascript\n      store.query('person', { ids: [1, 2, 3] });\n      ```\n       The request made to the server will look something like this:\n       ```\n      GET \"/api/v1/person?ids%5B%5D=1&ids%5B%5D=2&ids%5B%5D=3\"\n      decoded: \"/api/v1/person?ids[]=1&ids[]=2&ids[]=3\"\n      ```\n       This method returns a promise, which is resolved with an\n      [`AdapterPopulatedRecordArray`](/ember-data/release/classes/AdapterPopulatedRecordArray)\n      once the server returns.\n       @since 1.13.0\n      @method query\n      @param {String} modelName\n      @param {any} query an opaque query to be used by the adapter\n      @param {Object} options optional, may include `adapterOptions` hash which will be passed to adapter.query\n      @return {Promise} promise\n    */\n\n\n    query(modelName, query, options) {\n      {\n        assertDestroyingStore(this, 'query');\n      }\n\n      ( !(Ember.isPresent(modelName)) && Ember.assert(`You need to pass a model name to the store's query method`, Ember.isPresent(modelName)));\n      ( !(query) && Ember.assert(`You need to pass a query hash to the store's query method`, query));\n      ( !(typeof modelName === 'string') && Ember.assert(`Passing classes to store methods has been removed. Please pass a dasherized string instead of ${modelName}`, typeof modelName === 'string'));\n      var adapterOptionsWrapper = {};\n\n      if (options && options.adapterOptions) {\n        adapterOptionsWrapper.adapterOptions = options.adapterOptions;\n      }\n\n      var normalizedModelName = normalizeModelName(modelName);\n      return this._query(normalizedModelName, query, null, adapterOptionsWrapper);\n    }\n\n    _query(modelName, query, array, options) {\n      ( !(Ember.isPresent(modelName)) && Ember.assert(`You need to pass a model name to the store's query method`, Ember.isPresent(modelName)));\n      ( !(query) && Ember.assert(`You need to pass a query hash to the store's query method`, query));\n      ( !(typeof modelName === 'string') && Ember.assert(`Passing classes to store methods has been removed. Please pass a dasherized string instead of ${modelName}`, typeof modelName === 'string'));\n      var adapter = this.adapterFor(modelName);\n      ( !(adapter) && Ember.assert(`You tried to load a query but you have no adapter (for ${modelName})`, adapter));\n      ( !(typeof adapter.query === 'function') && Ember.assert(`You tried to load a query but your adapter does not implement 'query'`, typeof adapter.query === 'function'));\n      return promiseArray(_query(adapter, this, modelName, query, array, options));\n    }\n    /**\n      This method makes a request for one record, where the `id` is not known\n      beforehand (if the `id` is known, use [`findRecord`](Store/methods/findRecord?anchor=findRecord)\n      instead).\n       This method can be used when it is certain that the server will return a\n      single object for the primary data.\n       Each time this method is called a new request is made through the adapter.\n       Let's assume our API provides an endpoint for the currently logged in user\n      via:\n       ```\n      // GET /api/current_user\n      {\n        user: {\n          id: 1234,\n          username: 'admin'\n        }\n      }\n      ```\n       Since the specific `id` of the `user` is not known beforehand, we can use\n      `queryRecord` to get the user:\n       ```javascript\n      store.queryRecord('user', {}).then(function(user) {\n        let username = user.get('username');\n        console.log(`Currently logged in as ${username}`);\n      });\n      ```\n       The request is made through the adapters' `queryRecord`:\n       ```app/adapters/user.js\n      import $ from 'jquery';\n      import Adapter from '@ember-data/adapter';\n       export default Adapter.extend({\n        queryRecord(modelName, query) {\n          return $.getJSON('/api/current_user');\n        }\n      });\n      ```\n       Note: the primary use case for `store.queryRecord` is when a single record\n      is queried and the `id` is not known beforehand. In all other cases\n      `store.query` and using the first item of the array is likely the preferred\n      way:\n       ```\n      // GET /users?username=unique\n      {\n        data: [{\n          id: 1234,\n          type: 'user',\n          attributes: {\n            username: \"unique\"\n          }\n        }]\n      }\n      ```\n       ```javascript\n      store.query('user', { username: 'unique' }).then(function(users) {\n        return users.get('firstObject');\n      }).then(function(user) {\n        let id = user.get('id');\n      });\n      ```\n       This method returns a promise, which resolves with the found record.\n       If the adapter returns no data for the primary data of the payload, then\n      `queryRecord` resolves with `null`:\n       ```\n      // GET /users?username=unique\n      {\n        data: null\n      }\n      ```\n       ```javascript\n      store.queryRecord('user', { username: 'unique' }).then(function(user) {\n        console.log(user); // null\n      });\n      ```\n       @since 1.13.0\n      @method queryRecord\n      @param {String} modelName\n      @param {any} query an opaque query to be used by the adapter\n      @param {Object} options optional, may include `adapterOptions` hash which will be passed to adapter.queryRecord\n      @return {Promise} promise which resolves with the found record or `null`\n    */\n\n\n    queryRecord(modelName, query, options) {\n      {\n        assertDestroyingStore(this, 'queryRecord');\n      }\n\n      ( !(Ember.isPresent(modelName)) && Ember.assert(`You need to pass a model name to the store's queryRecord method`, Ember.isPresent(modelName)));\n      ( !(query) && Ember.assert(`You need to pass a query hash to the store's queryRecord method`, query));\n      ( !(typeof modelName === 'string') && Ember.assert(`Passing classes to store methods has been removed. Please pass a dasherized string instead of ${modelName}`, typeof modelName === 'string'));\n      var normalizedModelName = normalizeModelName(modelName);\n      var adapter = this.adapterFor(normalizedModelName);\n      var adapterOptionsWrapper = {};\n\n      if (options && options.adapterOptions) {\n        adapterOptionsWrapper.adapterOptions = options.adapterOptions;\n      }\n\n      ( !(adapter) && Ember.assert(`You tried to make a query but you have no adapter (for ${normalizedModelName})`, adapter));\n      ( !(typeof adapter.queryRecord === 'function') && Ember.assert(`You tried to make a query but your adapter does not implement 'queryRecord'`, typeof adapter.queryRecord === 'function'));\n      return promiseObject(_queryRecord(adapter, this, normalizedModelName, query, adapterOptionsWrapper).then(internalModel => {\n        // the promise returned by store.queryRecord is expected to resolve with\n        // an instance of Model\n        if (internalModel) {\n          return internalModel.getRecord();\n        }\n\n        return null;\n      }));\n    }\n    /**\n      `findAll` asks the adapter's `findAll` method to find the records for the\n      given type, and returns a promise which will resolve with all records of\n      this type present in the store, even if the adapter only returns a subset\n      of them.\n       ```app/routes/authors.js\n      import Route from '@ember/routing/route';\n       export default Route.extend({\n        model(params) {\n          return this.store.findAll('author');\n        }\n      });\n      ```\n       _When_ the returned promise resolves depends on the reload behavior,\n      configured via the passed `options` hash and the result of the adapter's\n      `shouldReloadAll` method.\n       ### Reloading\n       If `{ reload: true }` is passed or `adapter.shouldReloadAll` evaluates to\n      `true`, then the returned promise resolves once the adapter returns data,\n      regardless if there are already records in the store:\n       ```js\n      store.push({\n        data: {\n          id: 'first',\n          type: 'author'\n        }\n      });\n       // adapter#findAll resolves with\n      // [\n      //   {\n      //     id: 'second',\n      //     type: 'author'\n      //   }\n      // ]\n      store.findAll('author', { reload: true }).then(function(authors) {\n        authors.getEach('id'); // ['first', 'second']\n      });\n      ```\n       If no reload is indicated via the above mentioned ways, then the promise\n      immediately resolves with all the records currently loaded in the store.\n       ### Background Reloading\n       Optionally, if `adapter.shouldBackgroundReloadAll` evaluates to `true`,\n      then a background reload is started. Once this resolves, the array with\n      which the promise resolves, is updated automatically so it contains all the\n      records in the store:\n       ```app/adapters/application.js\n      import Adapter from '@ember-data/adapter';\n      export default Adapter.extend({\n        shouldReloadAll(store, snapshotsArray) {\n          return false;\n        },\n         shouldBackgroundReloadAll(store, snapshotsArray) {\n          return true;\n        }\n      });\n       // ...\n       store.push({\n        data: {\n          id: 'first',\n          type: 'author'\n        }\n      });\n       let allAuthors;\n      store.findAll('author').then(function(authors) {\n        authors.getEach('id'); // ['first']\n         allAuthors = authors;\n      });\n       // later, once adapter#findAll resolved with\n      // [\n      //   {\n      //     id: 'second',\n      //     type: 'author'\n      //   }\n      // ]\n       allAuthors.getEach('id'); // ['first', 'second']\n      ```\n       If you would like to force or prevent background reloading, you can set a\n      boolean value for `backgroundReload` in the options object for\n      `findAll`.\n       ```app/routes/post/edit.js\n      import Route from '@ember/routing/route';\n       export default Route.extend({\n        model() {\n          return this.store.findAll('post', { backgroundReload: false });\n        }\n      });\n      ```\n       If you pass an object on the `adapterOptions` property of the options\n      argument it will be passed to you adapter via the `snapshotRecordArray`\n       ```app/routes/posts.js\n      import Route from '@ember/routing/route';\n       export default Route.extend({\n        model(params) {\n          return this.store.findAll('post', {\n            adapterOptions: { subscribe: false }\n          });\n        }\n      });\n      ```\n       ```app/adapters/post.js\n      import MyCustomAdapter from './custom-adapter';\n       export default MyCustomAdapter.extend({\n        findAll(store, type, sinceToken, snapshotRecordArray) {\n          if (snapshotRecordArray.adapterOptions.subscribe) {\n            // ...\n          }\n          // ...\n        }\n      });\n      ```\n       See [peekAll](Store/methods/peekAll?anchor=peekAll) to get an array of current records in the\n      store, without waiting until a reload is finished.\n       ### Retrieving Related Model Records\n       If you use an adapter such as Ember's default\n      [`JSONAPIAdapter`](/ember-data/release/classes/JSONAPIAdapter)\n      that supports the [JSON API specification](http://jsonapi.org/) and if your server\n      endpoint supports the use of an\n      ['include' query parameter](http://jsonapi.org/format/#fetching-includes),\n      you can use `findAll()` to automatically retrieve additional records related to\n      those requested by supplying an `include` parameter in the `options` object.\n       For example, given a `post` model that has a `hasMany` relationship with a `comment`\n      model, when we retrieve all of the post records we can have the server also return\n      all of the posts' comments in the same request:\n       ```app/routes/posts.js\n      import Route from '@ember/routing/route';\n       export default Route.extend({\n        model() {\n          return this.store.findAll('post', { include: 'comments' });\n        }\n      });\n       ```\n      Multiple relationships can be requested using an `include` parameter consisting of a\n      comma-separated list (without white-space) while nested relationships can be specified\n      using a dot-separated sequence of relationship names. So to request both the posts'\n      comments and the authors of those comments the request would look like this:\n       ```app/routes/posts.js\n      import Route from '@ember/routing/route';\n       export default Route.extend({\n        model() {\n          return this.store.findAll('post', { include: 'comments,comments.author' });\n        }\n      });\n       ```\n       See [query](Store/methods/query?anchor=query) to only get a subset of records from the server.\n       @since 1.13.0\n      @method findAll\n      @param {String} modelName\n      @param {Object} options\n      @return {Promise} promise\n    */\n\n\n    findAll(modelName, options) {\n      {\n        assertDestroyingStore(this, 'findAll');\n      }\n\n      ( !(Ember.isPresent(modelName)) && Ember.assert(`You need to pass a model name to the store's findAll method`, Ember.isPresent(modelName)));\n      ( !(typeof modelName === 'string') && Ember.assert(`Passing classes to store methods has been removed. Please pass a dasherized string instead of ${modelName}`, typeof modelName === 'string'));\n      var normalizedModelName = normalizeModelName(modelName);\n\n      var fetch = this._fetchAll(normalizedModelName, this.peekAll(normalizedModelName), options);\n\n      return fetch;\n    }\n    /**\n      @method _fetchAll\n      @private\n      @param {Model} modelName\n      @param {RecordArray} array\n      @return {Promise} promise\n    */\n\n\n    _fetchAll(modelName, array, options = {}) {\n      var adapter = this.adapterFor(modelName);\n      ( !(adapter) && Ember.assert(`You tried to load all records but you have no adapter (for ${modelName})`, adapter));\n      ( !(typeof adapter.findAll === 'function') && Ember.assert(`You tried to load all records but your adapter does not implement 'findAll'`, typeof adapter.findAll === 'function'));\n\n      if (options.reload) {\n        Ember.set(array, 'isUpdating', true);\n        return promiseArray(_findAll(adapter, this, modelName, options));\n      }\n\n      var snapshotArray = array._createSnapshot(options);\n\n      if (options.reload !== false) {\n        if (adapter.shouldReloadAll && adapter.shouldReloadAll(this, snapshotArray) || !adapter.shouldReloadAll && snapshotArray.length === 0) {\n          Ember.set(array, 'isUpdating', true);\n          return promiseArray(_findAll(adapter, this, modelName, options));\n        }\n      }\n\n      if (options.backgroundReload === false) {\n        return promiseArray(Ember.RSVP.Promise.resolve(array));\n      }\n\n      if (options.backgroundReload || !adapter.shouldBackgroundReloadAll || adapter.shouldBackgroundReloadAll(this, snapshotArray)) {\n        Ember.set(array, 'isUpdating', true);\n\n        _findAll(adapter, this, modelName, options);\n      }\n\n      return promiseArray(Ember.RSVP.Promise.resolve(array));\n    }\n    /**\n      @method _didUpdateAll\n      @param {String} modelName\n      @private\n    */\n\n\n    _didUpdateAll(modelName) {\n      this.recordArrayManager._didUpdateAll(modelName);\n    }\n    /**\n      This method returns a filtered array that contains all of the\n      known records for a given type in the store.\n       Note that because it's just a filter, the result will contain any\n      locally created records of the type, however, it will not make a\n      request to the backend to retrieve additional records. If you\n      would like to request all the records from the backend please use\n      [store.findAll](Store/methods/findAll?anchor=findAll).\n       Also note that multiple calls to `peekAll` for a given type will always\n      return the same `RecordArray`.\n       Example\n       ```javascript\n      let localPosts = store.peekAll('post');\n      ```\n       @since 1.13.0\n      @method peekAll\n      @param {String} modelName\n      @return {RecordArray}\n    */\n\n\n    peekAll(modelName) {\n      {\n        assertDestroyingStore(this, 'peekAll');\n      }\n\n      ( !(Ember.isPresent(modelName)) && Ember.assert(`You need to pass a model name to the store's peekAll method`, Ember.isPresent(modelName)));\n      ( !(typeof modelName === 'string') && Ember.assert(`Passing classes to store methods has been removed. Please pass a dasherized string instead of ${modelName}`, typeof modelName === 'string'));\n      var normalizedModelName = normalizeModelName(modelName);\n      return this.recordArrayManager.liveRecordArrayFor(normalizedModelName);\n    }\n    /**\n      This method unloads all records in the store.\n      It schedules unloading to happen during the next run loop.\n       Optionally you can pass a type which unload all records for a given type.\n       ```javascript\n      store.unloadAll();\n      store.unloadAll('post');\n      ```\n       @method unloadAll\n      @param {String} modelName\n    */\n\n\n    unloadAll(modelName) {\n      {\n        assertDestroyedStoreOnly(this, 'unloadAll');\n      }\n\n      ( !(!modelName || typeof modelName === 'string') && Ember.assert(`Passing classes to store methods has been removed. Please pass a dasherized string instead of ${modelName}`, !modelName || typeof modelName === 'string'));\n      var factory = internalModelFactoryFor(this);\n\n      if (modelName === undefined) {\n        factory.clear();\n      } else {\n        var normalizedModelName = normalizeModelName(modelName);\n        factory.clear(normalizedModelName);\n      }\n    }\n\n    filter() {\n      ( Ember.assert('The filter API has been moved to a plugin. To enable store.filter using an environment flag, or to use an alternative, you can visit the ember-data-filter addon page. https://github.com/ember-data/ember-data-filter', false));\n    } // ..............\n    // . PERSISTING .\n    // ..............\n\n    /**\n      This method is called by `record.save`, and gets passed a\n      resolver for the promise that `record.save` returns.\n       It schedules saving to happen at the end of the run loop.\n       @method scheduleSave\n      @private\n      @param {InternalModel} internalModel\n      @param {Resolver} resolver\n      @param {Object} options\n    */\n\n\n    scheduleSave(internalModel, resolver, options) {\n      var snapshot = internalModel.createSnapshot(options);\n\n      if (internalModel._isRecordFullyDeleted()) {\n        resolver.resolve();\n        return resolver.promise;\n      }\n\n      internalModel.adapterWillCommit();\n\n      this._pendingSave.push({\n        snapshot: snapshot,\n        resolver: resolver\n      });\n\n      emberRun$2.scheduleOnce('actions', this, this.flushPendingSave);\n    }\n    /**\n      This method is called at the end of the run loop, and\n      flushes any records passed into `scheduleSave`\n       @method flushPendingSave\n      @private\n    */\n\n\n    flushPendingSave() {\n\n      var pending = this._pendingSave.slice();\n\n      this._pendingSave = [];\n\n      for (var i = 0, j = pending.length; i < j; i++) {\n        var pendingItem = pending[i];\n        var snapshot = pendingItem.snapshot;\n        var resolver = pendingItem.resolver; // TODO We have to cast due to our reliance on this private property\n        // this will be refactored away once we change our pending API to be identifier based\n\n        var internalModel = snapshot._internalModel;\n        var adapter = this.adapterFor(internalModel.modelName);\n        var operation = void 0;\n\n        {\n          if (internalModel.currentState.stateName === 'root.deleted.saved') {\n            resolver.resolve();\n            continue;\n          } else if (internalModel.isNew()) {\n            operation = 'createRecord';\n          } else if (internalModel.isDeleted()) {\n            operation = 'deleteRecord';\n          } else {\n            operation = 'updateRecord';\n          }\n        }\n\n        resolver.resolve(_commit(adapter, this, operation, snapshot));\n      }\n    }\n    /**\n      This method is called once the promise returned by an\n      adapter's `createRecord`, `updateRecord` or `deleteRecord`\n      is resolved.\n       If the data provides a server-generated ID, it will\n      update the record and the store's indexes.\n       @method didSaveRecord\n      @private\n      @param {InternalModel} internalModel the in-flight internal model\n      @param {Object} data optional data (see above)\n      @param {string} op the adapter operation that was committed\n    */\n\n\n    didSaveRecord(internalModel, dataArg, op) {\n      {\n        assertDestroyingStore(this, 'didSaveRecord');\n      }\n\n      var data;\n\n      if (dataArg) {\n        data = dataArg.data;\n      }\n\n      if (!data) {\n        ( !(internalModel.id) && Ember.assert(`Your ${internalModel.modelName} record was saved to the server, but the response does not have an id and no id has been set client side. Records must have ids. Please update the server response to provide an id in the response or generate the id on the client side either before saving the record or while normalizing the response.`, internalModel.id));\n      }\n\n      var cache = identifierCacheFor(this);\n      var identifier = internalModel.identifier;\n\n      if (op !== 'deleteRecord' && data) {\n        cache.updateRecordIdentifier(identifier, data);\n      } //We first make sure the primary data has been updated\n      //TODO try to move notification to the user to the end of the runloop\n\n\n      internalModel.adapterDidCommit(data);\n    }\n    /**\n      This method is called once the promise returned by an\n      adapter's `createRecord`, `updateRecord` or `deleteRecord`\n      is rejected with a `InvalidError`.\n       @method recordWasInvalid\n      @private\n      @param {InternalModel} internalModel\n      @param {Object} errors\n    */\n\n\n    recordWasInvalid(internalModel, parsedErrors, error) {\n      {\n        assertDestroyingStore(this, 'recordWasInvalid');\n      }\n\n      {\n        internalModel.adapterDidInvalidate(parsedErrors);\n      }\n    }\n    /**\n      This method is called once the promise returned by an\n      adapter's `createRecord`, `updateRecord` or `deleteRecord`\n      is rejected (with anything other than a `InvalidError`).\n       @method recordWasError\n      @private\n      @param {InternalModel} internalModel\n      @param {Error} error\n    */\n\n\n    recordWasError(internalModel, error) {\n      {\n        assertDestroyingStore(this, 'recordWasError');\n      }\n\n      internalModel.adapterDidError(error);\n    }\n    /**\n      Sets newly received ID from the adapter's `createRecord`, `updateRecord`\n      or `deleteRecord`.\n       @method setRecordId\n      @private\n      @param {String} modelName\n      @param {string} newId\n      @param {string} clientId\n     */\n\n\n    setRecordId(modelName, newId, clientId) {\n      {\n        assertDestroyingStore(this, 'setRecordId');\n      }\n\n      internalModelFactoryFor(this).setRecordId(modelName, newId, clientId);\n    } // ................\n    // . LOADING DATA .\n    // ................\n\n    /**\n      This internal method is used by `push`.\n       @method _load\n      @private\n      @param {Object} data\n    */\n\n\n    _load(data) {\n      var resource = constructResource(normalizeModelName(data.type), ensureStringId(data.id), coerceId(data.lid));\n      var internalModel = internalModelFactoryFor(this).lookup(resource, data); // store.push will be from empty\n      // findRecord will be from root.loading\n      // all else will be updates\n\n      var isLoading = internalModel.currentState.stateName === 'root.loading';\n      var isUpdate = internalModel.currentState.isEmpty === false && !isLoading; // exclude store.push (root.empty) case\n\n      if (isUpdate || isLoading) {\n        var _identifier3 = internalModel.identifier;\n        var updatedIdentifier = identifierCacheFor(this).updateRecordIdentifier(_identifier3, data);\n\n        if (updatedIdentifier !== _identifier3) {\n          // we encountered a merge of identifiers in which\n          // two identifiers (and likely two internalModels)\n          // existed for the same resource. Now that we have\n          // determined the correct identifier to use, make sure\n          // that we also use the correct internalModel.\n          _identifier3 = updatedIdentifier;\n          internalModel = internalModelFactoryFor(this).lookup(_identifier3);\n        }\n      }\n\n      internalModel.setupData(data);\n\n      if (!isUpdate) {\n        this.recordArrayManager.recordDidChange(internalModel);\n      }\n\n      return internalModel;\n    }\n    /**\n      Push some data for a given type into the store.\n       This method expects normalized [JSON API](http://jsonapi.org/) document. This means you have to follow [JSON API specification](http://jsonapi.org/format/) with few minor adjustments:\n      - record's `type` should always be in singular, dasherized form\n      - members (properties) should be camelCased\n       [Your primary data should be wrapped inside `data` property](http://jsonapi.org/format/#document-top-level):\n       ```js\n      store.push({\n        data: {\n          // primary data for single record of type `Person`\n          id: '1',\n          type: 'person',\n          attributes: {\n            firstName: 'Daniel',\n            lastName: 'Kmak'\n          }\n        }\n      });\n      ```\n       [Demo.](http://ember-twiddle.com/fb99f18cd3b4d3e2a4c7)\n       `data` property can also hold an array (of records):\n       ```js\n      store.push({\n        data: [\n          // an array of records\n          {\n            id: '1',\n            type: 'person',\n            attributes: {\n              firstName: 'Daniel',\n              lastName: 'Kmak'\n            }\n          },\n          {\n            id: '2',\n            type: 'person',\n            attributes: {\n              firstName: 'Tom',\n              lastName: 'Dale'\n            }\n          }\n        ]\n      });\n      ```\n       [Demo.](http://ember-twiddle.com/69cdbeaa3702159dc355)\n       There are some typical properties for `JSONAPI` payload:\n      * `id` - mandatory, unique record's key\n      * `type` - mandatory string which matches `model`'s dasherized name in singular form\n      * `attributes` - object which holds data for record attributes - `attr`'s declared in model\n      * `relationships` - object which must contain any of the following properties under each relationships' respective key (example path is `relationships.achievements.data`):\n        - [`links`](http://jsonapi.org/format/#document-links)\n        - [`data`](http://jsonapi.org/format/#document-resource-object-linkage) - place for primary data\n        - [`meta`](http://jsonapi.org/format/#document-meta) - object which contains meta-information about relationship\n       For this model:\n       ```app/models/person.js\n      import Model, { attr, hasMany } from '@ember-data/model';\n       export default Model.extend({\n        firstName: attr('string'),\n        lastName: attr('string'),\n         children: hasMany('person')\n      });\n      ```\n       To represent the children as IDs:\n       ```js\n      {\n        data: {\n          id: '1',\n          type: 'person',\n          attributes: {\n            firstName: 'Tom',\n            lastName: 'Dale'\n          },\n          relationships: {\n            children: {\n              data: [\n                {\n                  id: '2',\n                  type: 'person'\n                },\n                {\n                  id: '3',\n                  type: 'person'\n                },\n                {\n                  id: '4',\n                  type: 'person'\n                }\n              ]\n            }\n          }\n        }\n      }\n      ```\n       [Demo.](http://ember-twiddle.com/343e1735e034091f5bde)\n       To represent the children relationship as a URL:\n       ```js\n      {\n        data: {\n          id: '1',\n          type: 'person',\n          attributes: {\n            firstName: 'Tom',\n            lastName: 'Dale'\n          },\n          relationships: {\n            children: {\n              links: {\n                related: '/people/1/children'\n              }\n            }\n          }\n        }\n      }\n      ```\n       If you're streaming data or implementing an adapter, make sure\n      that you have converted the incoming data into this form. The\n      store's [normalize](Store/methods/normalize?anchor=normalize) method is a convenience\n      helper for converting a json payload into the form Ember Data\n      expects.\n       ```js\n      store.push(store.normalize('person', data));\n      ```\n       This method can be used both to push in brand new\n      records, as well as to update existing records.\n       @method push\n      @param {Object} data\n      @return the record(s) that was created or\n        updated.\n    */\n\n\n    push(data) {\n      {\n        assertDestroyingStore(this, 'push');\n      }\n\n      var pushed = this._push(data);\n\n      if (Array.isArray(pushed)) {\n        var records = pushed.map(internalModel => internalModel.getRecord());\n        return records;\n      }\n\n      if (pushed === null) {\n        return null;\n      }\n\n      var record = pushed.getRecord();\n      return record;\n    }\n    /*\n      Push some data in the form of a json-api document into the store,\n      without creating materialized records.\n       @method _push\n      @private\n      @param {Object} jsonApiDoc\n      @return {InternalModel|Array<InternalModel>} pushed InternalModel(s)\n    */\n\n\n    _push(jsonApiDoc) {\n      {\n        assertDestroyingStore(this, '_push');\n      }\n\n      var internalModelOrModels = this._backburner.join(() => {\n        var included = jsonApiDoc.included;\n        var i, length;\n\n        if (included) {\n          for (i = 0, length = included.length; i < length; i++) {\n            this._pushInternalModel(included[i]);\n          }\n        }\n\n        if (Array.isArray(jsonApiDoc.data)) {\n          length = jsonApiDoc.data.length;\n          var internalModels = new Array(length);\n\n          for (i = 0; i < length; i++) {\n            internalModels[i] = this._pushInternalModel(jsonApiDoc.data[i]);\n          }\n\n          return internalModels;\n        }\n\n        if (jsonApiDoc.data === null) {\n          return null;\n        }\n\n        ( !(Ember.typeOf(jsonApiDoc.data) === 'object') && Ember.assert(`Expected an object in the 'data' property in a call to 'push' for ${jsonApiDoc.type}, but was ${Ember.typeOf(jsonApiDoc.data)}`, Ember.typeOf(jsonApiDoc.data) === 'object'));\n        return this._pushInternalModel(jsonApiDoc.data);\n      }); // this typecast is necessary because `backburner.join` is mistyped to return void\n\n\n      return internalModelOrModels;\n    }\n\n    _pushInternalModel(data) {\n      var modelName = data.type;\n      ( !(data.id !== null && data.id !== undefined && data.id !== '') && Ember.assert(`You must include an 'id' for ${modelName} in an object passed to 'push'`, data.id !== null && data.id !== undefined && data.id !== ''));\n      ( !(this._hasModelFor(modelName)) && Ember.assert(`You tried to push data with a type '${modelName}' but no model could be found with that name.`, this._hasModelFor(modelName)));\n\n      {\n        // If ENV.DS_WARN_ON_UNKNOWN_KEYS is set to true and the payload\n        // contains unknown attributes or relationships, log a warning.\n        if (ENV.DS_WARN_ON_UNKNOWN_KEYS) {\n          var unknownAttributes, unknownRelationships;\n\n          {\n            var modelClass = this.modelFor(modelName); // Check unknown attributes\n\n            unknownAttributes = Object.keys(data.attributes || {}).filter(key => {\n              return !Ember.get(modelClass, 'fields').has(key);\n            }); // Check unknown relationships\n\n            unknownRelationships = Object.keys(data.relationships || {}).filter(key => {\n              return !Ember.get(modelClass, 'fields').has(key);\n            });\n          }\n\n          var unknownAttributesMessage = `The payload for '${modelName}' contains these unknown attributes: ${unknownAttributes}. Make sure they've been defined in your model.`;\n          ( Ember.warn(unknownAttributesMessage, unknownAttributes.length === 0, {\n            id: 'ds.store.unknown-keys-in-payload'\n          }));\n          var unknownRelationshipsMessage = `The payload for '${modelName}' contains these unknown relationships: ${unknownRelationships}. Make sure they've been defined in your model.`;\n          ( Ember.warn(unknownRelationshipsMessage, unknownRelationships.length === 0, {\n            id: 'ds.store.unknown-keys-in-payload'\n          }));\n        }\n      } // Actually load the record into the store.\n\n\n      var internalModel = this._load(data); //    this._setupRelationshipsForModel(internalModel, data);\n\n\n      return internalModel;\n    }\n    /**\n      Push some raw data into the store.\n       This method can be used both to push in brand new\n      records, as well as to update existing records. You\n      can push in more than one type of object at once.\n      All objects should be in the format expected by the\n      serializer.\n       ```app/serializers/application.js\n      import RESTSerializer from '@ember-data/serializer/rest';\n       export default RESTSerializer;\n      ```\n       ```js\n      let pushData = {\n        posts: [\n          { id: 1, postTitle: \"Great post\", commentIds: [2] }\n        ],\n        comments: [\n          { id: 2, commentBody: \"Insightful comment\" }\n        ]\n      }\n       store.pushPayload(pushData);\n      ```\n       By default, the data will be deserialized using a default\n      serializer (the application serializer if it exists).\n       Alternatively, `pushPayload` will accept a model type which\n      will determine which serializer will process the payload.\n       ```app/serializers/application.js\n      import RESTSerializer from '@ember-data/serializer/rest';\n       export default RESTSerializer;\n      ```\n       ```app/serializers/post.js\n      import JSONSerializer from '@ember-data/serializer/json';\n       export default JSONSerializer;\n      ```\n       ```js\n      store.pushPayload(pushData); // Will use the application serializer\n      store.pushPayload('post', pushData); // Will use the post serializer\n      ```\n       @method pushPayload\n      @param {String} modelName Optionally, a model type used to determine which serializer will be used\n      @param {Object} inputPayload\n    */\n\n\n    pushPayload(modelName, inputPayload) {\n      {\n        assertDestroyingStore(this, 'pushPayload');\n      }\n\n      var serializer;\n      var payload;\n\n      if (!inputPayload) {\n        payload = modelName;\n        serializer = this.serializerFor('application');\n        ( !(typeof serializer.pushPayload === 'function') && Ember.assert(`You cannot use 'store#pushPayload' without a modelName unless your default serializer defines 'pushPayload'`, typeof serializer.pushPayload === 'function'));\n      } else {\n        payload = inputPayload;\n        ( !(typeof modelName === 'string') && Ember.assert(`Passing classes to store methods has been removed. Please pass a dasherized string instead of ${modelName}`, typeof modelName === 'string'));\n        var normalizedModelName = normalizeModelName(modelName);\n        serializer = this.serializerFor(normalizedModelName);\n      }\n\n      ( !(serializer.pushPayload) && Ember.assert(`You must define a pushPayload method in your serializer in order to call store.pushPayload`, serializer.pushPayload));\n      serializer.pushPayload(this, payload);\n    }\n\n    reloadManyArray(manyArray, internalModel, key, options) {\n      return internalModel.reloadHasMany(key, options);\n    }\n\n    reloadBelongsTo(belongsToProxy, internalModel, key, options) {\n      return internalModel.reloadBelongsTo(key, options);\n    }\n\n    _internalModelForResource(resource) {\n      return internalModelFactoryFor(this).getByResource(resource);\n    }\n    /**\n     * TODO Only needed temporarily for test support\n     *\n     * @internal\n     */\n\n\n    _internalModelForId(type, id, lid) {\n      var resource = constructResource(type, id, lid);\n      return internalModelFactoryFor(this).lookup(resource);\n    }\n\n    serializeRecord(record, options) {\n\n      assertInDebug('serializeRecord is only available when CUSTOM_MODEL_CLASS ff is on', false);\n    }\n\n    saveRecord(record, options) {\n\n      assertInDebug('saveRecord is only available when CUSTOM_MODEL_CLASS ff is on', false);\n    }\n\n    relationshipReferenceFor(identifier, key) {\n\n      assertInDebug('relationshipReferenceFor is only available when CUSTOM_MODEL_CLASS ff is on', false);\n    }\n    /**\n     * @internal\n     */\n\n\n    _createRecordData(identifier) {\n      return this.createRecordDataFor(identifier.type, identifier.id, identifier.lid, this._storeWrapper);\n    }\n    /**\n     * Instantiation hook allowing applications or addons to configure the store\n     * to utilize a custom RecordData implementation.\n     *\n     * @param modelName\n     * @param id\n     * @param clientId\n     * @param storeWrapper\n     */\n\n\n    createRecordDataFor(modelName, id, clientId, storeWrapper) {\n      {\n        // we can't greedily use require as this causes\n        // a cycle we can't easily fix (or clearly pin point) at present.\n        //\n        // it can be reproduced in partner tests by running\n        // node ./bin/packages-for-commit.js && yarn test-external:ember-observer\n        if (_RecordData === undefined) {\n          _RecordData = require$1('@ember-data/record-data/-private').RecordData;\n        }\n\n        var _identifier6 = identifierCacheFor(this).getOrCreateRecordIdentifier({\n          type: modelName,\n          id,\n          lid: clientId\n        });\n\n        return new _RecordData(_identifier6, storeWrapper);\n      }\n    }\n    /**\n     * @internal\n     */\n\n\n    __recordDataFor(resource) {\n      var identifier = identifierCacheFor(this).getOrCreateRecordIdentifier(resource);\n      return this.recordDataFor(identifier, false);\n    }\n    /**\n     * @internal\n     */\n\n\n    recordDataFor(identifier, isCreate) {\n      var internalModel;\n\n      if (isCreate === true) {\n        internalModel = internalModelFactoryFor(this).build({\n          type: identifier.type,\n          id: null\n        });\n        internalModel.loadedData();\n        internalModel.didCreateRecord();\n      } else {\n        internalModel = internalModelFactoryFor(this).lookup(identifier);\n      }\n\n      return recordDataFor(internalModel);\n    }\n    /**\n      `normalize` converts a json payload into the normalized form that\n      [push](Store/methods/push?anchor=push) expects.\n       Example\n       ```js\n      socket.on('message', function(message) {\n        let modelName = message.model;\n        let data = message.data;\n        store.push(store.normalize(modelName, data));\n      });\n      ```\n       @method normalize\n      @param {String} modelName The name of the model type for this payload\n      @param {Object} payload\n      @return {Object} The normalized payload\n    */\n\n\n    normalize(modelName, payload) {\n      {\n        assertDestroyingStore(this, 'normalize');\n      }\n\n      ( !(Ember.isPresent(modelName)) && Ember.assert(`You need to pass a model name to the store's normalize method`, Ember.isPresent(modelName)));\n      ( !(typeof modelName === 'string') && Ember.assert(`Passing classes to store methods has been removed. Please pass a dasherized string instead of ${Ember.inspect(modelName)}`, typeof modelName === 'string'));\n      var normalizedModelName = normalizeModelName(modelName);\n      var serializer = this.serializerFor(normalizedModelName);\n      var model = this.modelFor(normalizedModelName);\n      ( !(serializer.normalize) && Ember.assert(`You must define a normalize method in your serializer in order to call store.normalize`, serializer.normalize));\n      return serializer.normalize(model, payload);\n    }\n\n    newClientId() {\n      assertInDebug(`Private API Removed`, false);\n    } // ...............\n    // . DESTRUCTION .\n    // ...............\n\n    /**\n     * TODO remove test usage\n     *\n     * @internal\n     */\n\n\n    _internalModelsFor(modelName) {\n      return internalModelFactoryFor(this).modelMapFor(modelName);\n    } // ......................\n    // . PER-TYPE ADAPTERS\n    // ......................\n\n    /**\n      Returns an instance of the adapter for a given type. For\n      example, `adapterFor('person')` will return an instance of\n      `App.PersonAdapter`.\n       If no `App.PersonAdapter` is found, this method will look\n      for an `App.ApplicationAdapter` (the default adapter for\n      your entire application).\n       If no `App.ApplicationAdapter` is found, it will return\n      the value of the `defaultAdapter`.\n       @method adapterFor\n      @public\n      @param {String} modelName\n      @return Adapter\n    */\n\n\n    adapterFor(modelName) {\n      {\n        assertDestroyingStore(this, 'adapterFor');\n      }\n\n      ( !(Ember.isPresent(modelName)) && Ember.assert(`You need to pass a model name to the store's adapterFor method`, Ember.isPresent(modelName)));\n      ( !(typeof modelName === 'string') && Ember.assert(`Passing classes to store.adapterFor has been removed. Please pass a dasherized string instead of ${modelName}`, typeof modelName === 'string'));\n      var normalizedModelName = normalizeModelName(modelName);\n      var {\n        _adapterCache\n      } = this;\n      var adapter = _adapterCache[normalizedModelName];\n\n      if (adapter) {\n        return adapter;\n      }\n\n      var owner = Ember.getOwner(this);\n      adapter = owner.lookup(`adapter:${normalizedModelName}`); // in production this is handled by the re-export\n\n      if ( adapter === undefined) {\n        if (normalizedModelName === '-json-api') {\n          var Adapter = require$1('@ember-data/adapter/json-api').default;\n\n          owner.register(`adapter:-json-api`, Adapter);\n          adapter = owner.lookup(`adapter:-json-api`);\n          deprecateTestRegistration('adapter', '-json-api');\n        }\n      }\n\n      if (adapter !== undefined) {\n        Ember.set(adapter, 'store', this);\n        _adapterCache[normalizedModelName] = adapter;\n        return adapter;\n      } // no adapter found for the specific model, fallback and check for application adapter\n\n\n      adapter = _adapterCache.application || owner.lookup('adapter:application');\n\n      if (adapter !== undefined) {\n        Ember.set(adapter, 'store', this);\n        _adapterCache[normalizedModelName] = adapter;\n        _adapterCache.application = adapter;\n        return adapter;\n      } // no model specific adapter or application adapter, check for an `adapter`\n      // property defined on the store\n\n\n      var adapterName = this.adapter || '-json-api';\n      adapter = adapterName ? _adapterCache[adapterName] || owner.lookup(`adapter:${adapterName}`) : undefined; // in production this is handled by the re-export\n\n      if ( adapter === undefined) {\n        if (adapterName === '-json-api') {\n          var _Adapter = require$1('@ember-data/adapter/json-api').default;\n\n          owner.register(`adapter:-json-api`, _Adapter);\n          adapter = owner.lookup(`adapter:-json-api`);\n          deprecateTestRegistration('adapter', '-json-api');\n        }\n      }\n\n      if (adapter !== undefined) {\n        Ember.set(adapter, 'store', this);\n        _adapterCache[normalizedModelName] = adapter;\n        _adapterCache[adapterName] = adapter;\n        return adapter;\n      } // final fallback, no model specific adapter, no application adapter, no\n      // `adapter` property on store: use json-api adapter\n\n\n      adapter = _adapterCache['-json-api'] || owner.lookup('adapter:-json-api');\n      ( !(adapter !== undefined) && Ember.assert(`No adapter was found for '${modelName}' and no 'application' adapter was found as a fallback.`, adapter !== undefined));\n      Ember.set(adapter, 'store', this);\n      _adapterCache[normalizedModelName] = adapter;\n      _adapterCache['-json-api'] = adapter;\n      return adapter;\n    } // ..............................\n    // . RECORD CHANGE NOTIFICATION .\n    // ..............................\n\n    /**\n      Returns an instance of the serializer for a given type. For\n      example, `serializerFor('person')` will return an instance of\n      `App.PersonSerializer`.\n       If no `App.PersonSerializer` is found, this method will look\n      for an `App.ApplicationSerializer` (the default serializer for\n      your entire application).\n       if no `App.ApplicationSerializer` is found, it will attempt\n      to get the `defaultSerializer` from the `PersonAdapter`\n      (`adapterFor('person')`).\n       If a serializer cannot be found on the adapter, it will fall back\n      to an instance of `JSONSerializer`.\n       @method serializerFor\n      @public\n      @param {String} modelName the record to serialize\n      @return {Serializer}\n    */\n\n\n    serializerFor(modelName) {\n      {\n        assertDestroyingStore(this, 'serializerFor');\n      }\n\n      ( !(Ember.isPresent(modelName)) && Ember.assert(`You need to pass a model name to the store's serializerFor method`, Ember.isPresent(modelName)));\n      ( !(typeof modelName === 'string') && Ember.assert(`Passing classes to store.serializerFor has been removed. Please pass a dasherized string instead of ${modelName}`, typeof modelName === 'string'));\n      var normalizedModelName = normalizeModelName(modelName);\n      var {\n        _serializerCache\n      } = this;\n      var serializer = _serializerCache[normalizedModelName];\n\n      if (serializer) {\n        return serializer;\n      }\n\n      var owner = Ember.getOwner(this);\n      serializer = owner.lookup(`serializer:${normalizedModelName}`);\n\n      {\n        // in production this is handled by the re-export\n        if ( serializer === undefined) {\n          if (normalizedModelName === '-json-api') {\n            var Serializer = require$1('@ember-data/serializer/json-api').default;\n\n            owner.register(`serializer:-json-api`, Serializer);\n            serializer = owner.lookup(`serializer:-json-api`);\n            deprecateTestRegistration('serializer', '-json-api');\n          } else if (normalizedModelName === '-rest') {\n            var _Serializer = require$1('@ember-data/serializer/rest').default;\n\n            owner.register(`serializer:-rest`, _Serializer);\n            serializer = owner.lookup(`serializer:-rest`);\n            deprecateTestRegistration('serializer', '-rest');\n          } else if (normalizedModelName === '-default') {\n            var _Serializer2 = require$1('@ember-data/serializer/json').default;\n\n            owner.register(`serializer:-default`, _Serializer2);\n            serializer = owner.lookup(`serializer:-default`);\n            serializer && deprecateTestRegistration('serializer', '-default');\n          }\n        }\n      }\n\n      if (serializer !== undefined) {\n        Ember.set(serializer, 'store', this);\n        _serializerCache[normalizedModelName] = serializer;\n        return serializer;\n      } // no serializer found for the specific model, fallback and check for application serializer\n\n\n      serializer = _serializerCache.application || owner.lookup('serializer:application');\n\n      if (serializer !== undefined) {\n        Ember.set(serializer, 'store', this);\n        _serializerCache[normalizedModelName] = serializer;\n        _serializerCache.application = serializer;\n        return serializer;\n      }\n\n      var serializerName;\n\n      {\n        // no model specific serializer or application serializer, check for the `defaultSerializer`\n        // property defined on the adapter\n        var adapter = this.adapterFor(modelName);\n        serializerName = Ember.get(adapter, 'defaultSerializer');\n        ( !(!serializerName) && Ember.deprecate(`store.serializerFor(\"${modelName}\") resolved the \"${serializerName}\" serializer via the deprecated \\`adapter.defaultSerializer\\` property.\\n\\n\\tPreviously, if no application or type-specific serializer was specified, the store would attempt to lookup a serializer via the \\`defaultSerializer\\` property on the type's adapter. This behavior is deprecated in favor of explicitly defining a type-specific serializer or application serializer`, !serializerName, {\n          id: 'ember-data:default-serializer',\n          until: '4.0',\n          url: 'https://deprecations.emberjs.com/ember-data/v3.x#toc_ember-data:default-serializers'\n        }));\n        serializer = serializerName ? _serializerCache[serializerName] || owner.lookup(`serializer:${serializerName}`) : undefined;\n      }\n\n      {\n        // in production this is handled by the re-export\n        if ( serializer === undefined) {\n          if (serializerName === '-json-api') {\n            var _Serializer3 = require$1('@ember-data/serializer/json-api').default;\n\n            owner.register(`serializer:-json-api`, _Serializer3);\n            serializer = owner.lookup(`serializer:-json-api`);\n            deprecateTestRegistration('serializer', '-json-api');\n          } else if (serializerName === '-rest') {\n            var _Serializer4 = require$1('@ember-data/serializer/rest').default;\n\n            owner.register(`serializer:-rest`, _Serializer4);\n            serializer = owner.lookup(`serializer:-rest`);\n            deprecateTestRegistration('serializer', '-rest');\n          } else if (serializerName === '-default') {\n            var _Serializer5 = require$1('@ember-data/serializer/json').default;\n\n            owner.register(`serializer:-default`, _Serializer5);\n            serializer = owner.lookup(`serializer:-default`);\n            serializer && deprecateTestRegistration('serializer', '-default');\n          }\n        }\n\n        if (serializer !== undefined) {\n          Ember.set(serializer, 'store', this);\n          _serializerCache[normalizedModelName] = serializer;\n          _serializerCache[serializerName] = serializer;\n          return serializer;\n        }\n      }\n\n      {\n        // final fallback, no model specific serializer, no application serializer, no\n        // `serializer` property on store: use the convenience JSONSerializer\n        serializer = _serializerCache['-default'] || owner.lookup('serializer:-default');\n\n        if ( serializer === undefined) {\n          var JSONSerializer = require$1('@ember-data/serializer/json').default;\n\n          owner.register('serializer:-default', JSONSerializer);\n          serializer = owner.lookup('serializer:-default');\n          serializer && deprecateTestRegistration('serializer', '-default');\n        }\n\n        ( !(!serializer) && Ember.deprecate(`store.serializerFor(\"${modelName}\") resolved the \"-default\" serializer via the deprecated \"-default\" lookup fallback.\\n\\n\\tPreviously, when no type-specific serializer, application serializer, or adapter.defaultSerializer had been defined by the app, the \"-default\" serializer would be used which defaulted to the \\`JSONSerializer\\`. This behavior is deprecated in favor of explicitly defining an application or type-specific serializer`, !serializer, {\n          id: 'ember-data:default-serializer',\n          until: '4.0',\n          url: 'https://deprecations.emberjs.com/ember-data/v3.x#toc_ember-data:default-serializers'\n        }));\n        ( !(serializer !== undefined) && Ember.assert(`No serializer was found for '${modelName}' and no 'application' serializer was found as a fallback`, serializer !== undefined));\n        Ember.set(serializer, 'store', this);\n        _serializerCache[normalizedModelName] = serializer;\n        _serializerCache['-default'] = serializer;\n        return serializer;\n      }\n    }\n\n    destroy() {\n      // enqueue destruction of any adapters/serializers we have created\n      for (var adapterName in this._adapterCache) {\n        var adapter = this._adapterCache[adapterName];\n\n        if (typeof adapter.destroy === 'function') {\n          adapter.destroy();\n        }\n      }\n\n      for (var serializerName in this._serializerCache) {\n        var serializer = this._serializerCache[serializerName];\n\n        if (typeof serializer.destroy === 'function') {\n          serializer.destroy();\n        }\n      }\n\n      return super.destroy();\n    }\n\n    willDestroy() {\n      super.willDestroy();\n      this.recordArrayManager.destroy();\n      identifierCacheFor(this).destroy();\n      this.unloadAll();\n\n      {\n        Ember.Test.unregisterWaiter(this.__asyncWaiter);\n        var shouldTrack = this.shouldTrackAsyncRequests;\n        var tracked = this._trackedAsyncRequests;\n        var isSettled = tracked.length === 0;\n\n        if (!isSettled) {\n          if (shouldTrack) {\n            throw new Error('Async Request leaks detected. Add a breakpoint here and set `store.generateStackTracesForTrackedRequests = true;`to inspect traces for leak origins:\\n\\t - ' + tracked.map(o => o.label).join('\\n\\t - '));\n          } else {\n            ( Ember.warn('Async Request leaks detected. Add a breakpoint here and set `store.generateStackTracesForTrackedRequests = true;`to inspect traces for leak origins:\\n\\t - ' + tracked.map(o => o.label).join('\\n\\t - '), false, {\n              id: 'ds.async.leak.detected'\n            }));\n          }\n        }\n      }\n    }\n\n    _updateRelationshipState(relationship) {\n      if (this._updatedRelationships.push(relationship) !== 1) {\n        return;\n      }\n\n      this._backburner.join(() => {\n        this._backburner.schedule('syncRelationships', this, this._flushUpdatedRelationships);\n      });\n    }\n\n    _flushUpdatedRelationships() {\n      var updated = this._updatedRelationships;\n\n      for (var i = 0, l = updated.length; i < l; i++) {\n        updated[i].flushCanonical();\n      }\n\n      updated.length = 0;\n    }\n\n    _updateInternalModel(internalModel) {\n      if (this._updatedInternalModels.push(internalModel) !== 1) {\n        return;\n      }\n\n      emberRun$2.schedule('actions', this, this._flushUpdatedInternalModels);\n    }\n\n    _flushUpdatedInternalModels() {\n      var updated = this._updatedInternalModels;\n\n      for (var i = 0, l = updated.length; i < l; i++) {\n        updated[i]._triggerDeferredTriggers();\n      }\n\n      updated.length = 0;\n    }\n\n  }\n\n  {\n    Ember.defineProperty(CoreStore.prototype, 'defaultAdapter', Ember.computed('adapter', function () {\n      ( Ember.deprecate(`store.adapterFor(modelName) resolved the (\"${this.adapter || '-json-api'}\") adapter via the deprecated \\`store.defaultAdapter\\` property.\\n\\n\\tPreviously, applications could define the store's \\`adapter\\` property which would be used by \\`defaultAdapter\\` and \\`adapterFor\\` as a fallback for when an adapter was not found by an exact name match. This behavior is deprecated in favor of explicitly defining an application or type-specific adapter.`, false, {\n        id: 'ember-data:default-adapter',\n        until: '4.0',\n        url: 'https://deprecations.emberjs.com/ember-data/v3.x#toc_ember-data:default-adapter'\n      }));\n      var adapter = this.adapter || '-json-api';\n      ( !(typeof adapter === 'string') && Ember.assert('You tried to set `adapter` property to an instance of `Adapter`, where it should be a name', typeof adapter === 'string'));\n      return this.adapterFor(adapter);\n    }));\n  }\n\n  function _commit(adapter, store, operation, snapshot) {\n    var internalModel = snapshot._internalModel;\n    var modelName = snapshot.modelName;\n    var modelClass = store.modelFor(modelName);\n    ( !(adapter) && Ember.assert(`You tried to update a record but you have no adapter (for ${modelName})`, adapter));\n    ( !(typeof adapter[operation] === 'function') && Ember.assert(`You tried to update a record but your adapter (for ${modelName}) does not implement '${operation}'`, typeof adapter[operation] === 'function'));\n    var promise = Ember.RSVP.Promise.resolve().then(() => adapter[operation](store, modelClass, snapshot));\n    var serializer = store.serializerFor(modelName);\n    var label = `DS: Extract and notify about ${operation} completion of ${internalModel}`;\n    ( !(promise !== undefined) && Ember.assert(`Your adapter's '${operation}' method must return a value, but it returned 'undefined'`, promise !== undefined));\n    promise = guardDestroyedStore(promise, store, label);\n    promise = _guard(promise, _bind(_objectIsAlive, internalModel));\n    return promise.then(adapterPayload => {\n      /*\n      Note to future spelunkers hoping to optimize.\n      We rely on this `run` to create a run loop if needed\n      that `store._push` and `store.didSaveRecord` will both share.\n       We use `join` because it is often the case that we\n      have an outer run loop available still from the first\n      call to `store._push`;\n      */\n      store._backburner.join(() => {\n        var payload, data, sideloaded;\n\n        if (adapterPayload) {\n          payload = normalizeResponseHelper(serializer, store, modelClass, adapterPayload, snapshot.id, operation);\n\n          if (payload.included) {\n            sideloaded = payload.included;\n          }\n\n          data = payload.data;\n        }\n\n        store.didSaveRecord(internalModel, {\n          data\n        }, operation); // seems risky, but if the tests pass might be fine?\n\n        if (sideloaded) {\n          store._push({\n            data: null,\n            included: sideloaded\n          });\n        }\n      });\n\n      return internalModel;\n    }, function (error) {\n      if (error && error.isAdapterError === true && error.code === 'InvalidError') {\n        var parsedErrors;\n\n        if (typeof serializer.extractErrors === 'function') {\n          parsedErrors = serializer.extractErrors(store, modelClass, error, snapshot.id);\n        } else {\n          parsedErrors = errorsArrayToHash(error.errors);\n        }\n\n        store.recordWasInvalid(internalModel, parsedErrors, error);\n      } else {\n        store.recordWasError(internalModel, error);\n      }\n\n      throw error;\n    }, label);\n  }\n\n  var assertDestroyingStore;\n  var assertDestroyedStoreOnly;\n\n  {\n    assertDestroyingStore = function assertDestroyedStore(store, method) {\n      if (!store.shouldAssertMethodCallsOnDestroyedStore) {\n        ( !(!(store.isDestroying || store.isDestroyed)) && Ember.deprecate(`Attempted to call store.${method}(), but the store instance has already been destroyed.`, !(store.isDestroying || store.isDestroyed), {\n          id: 'ember-data:method-calls-on-destroyed-store',\n          until: '3.8'\n        }));\n      } else {\n        ( !(!(store.isDestroying || store.isDestroyed)) && Ember.assert(`Attempted to call store.${method}(), but the store instance has already been destroyed.`, !(store.isDestroying || store.isDestroyed)));\n      }\n    };\n\n    assertDestroyedStoreOnly = function assertDestroyedStoreOnly(store, method) {\n      if (!store.shouldAssertMethodCallsOnDestroyedStore) {\n        ( !(!store.isDestroyed) && Ember.deprecate(`Attempted to call store.${method}(), but the store instance has already been destroyed.`, !store.isDestroyed, {\n          id: 'ember-data:method-calls-on-destroyed-store',\n          until: '3.8'\n        }));\n      } else {\n        ( !(!store.isDestroyed) && Ember.assert(`Attempted to call store.${method}(), but the store instance has already been destroyed.`, !store.isDestroyed));\n      }\n    };\n  }\n  /**\n   * Flag indicating whether all inverse records are available\n   *\n   * true if the inverse exists and is loaded (not empty)\n   * true if there is no inverse\n   * false if the inverse exists and is not loaded (empty)\n   *\n   * @return {boolean}\n   */\n\n\n  function areAllInverseRecordsLoaded(store, resource) {\n    var cache = identifierCacheFor(store);\n\n    if (Array.isArray(resource.data)) {\n      // treat as collection\n      // check for unloaded records\n      var hasEmptyRecords = resource.data.reduce((hasEmptyModel, resourceIdentifier) => {\n        return hasEmptyModel || internalModelForRelatedResource(store, cache, resourceIdentifier).isEmpty();\n      }, false);\n      return !hasEmptyRecords;\n    } else {\n      // treat as single resource\n      if (!resource.data) {\n        return true;\n      } else {\n        var internalModel = internalModelForRelatedResource(store, cache, resource.data);\n        return !internalModel.isEmpty();\n      }\n    }\n  }\n\n  function internalModelForRelatedResource(store, cache, resource) {\n    var identifier = cache.getOrCreateRecordIdentifier(resource);\n    return store._internalModelForResource(identifier);\n  }\n\n  function assertInDebug(msg, cond = false) {\n    if ( cond) {\n      throw new Error(msg);\n    }\n  }\n\n  function assertIdentifierHasId(identifier) {\n    assertInDebug(`Attempted to schedule a fetch for a record without an id.`, identifier.id === null);\n  }\n\n  function notifyChanges(identifier, value, record, store) {\n    if (value === 'attributes') {\n      record.eachAttribute(key => {\n        var currentValue = Ember.cacheFor(record, key);\n\n        var internalModel = store._internalModelForResource(identifier);\n\n        if (currentValue !== internalModel._recordData.getAttr(key)) {\n          record.notifyPropertyChange(key);\n        }\n      });\n    } else if (value === 'relationships') {\n      record.eachRelationship((key, meta) => {\n        var internalModel = store._internalModelForResource(identifier);\n\n        if (meta.kind === 'belongsTo') {\n          record.notifyPropertyChange(key);\n        } else if (meta.kind === 'hasMany') {\n          if (meta.options.async) {\n            record.notifyPropertyChange(key);\n            internalModel.hasManyRemovalCheck(key);\n          }\n\n          if (internalModel._manyArrayCache[key]) {\n            internalModel._manyArrayCache[key].retrieveLatest();\n          }\n        }\n      });\n    } else if (value === 'errors') {\n      var internalModel = store._internalModelForResource(identifier); //TODO guard\n\n\n      var errors = internalModel._recordData.getErrors(identifier);\n\n      record.invalidErrorsChanged(errors);\n    } else if (value === 'state') {\n      record.notifyPropertyChange('isNew');\n      record.notifyPropertyChange('isDeleted');\n    } else if (value === 'identity') {\n      record.notifyPropertyChange('id');\n    }\n  }\n\n  var _modelForMixin;\n\n  {\n    var _found$1;\n\n    _modelForMixin = function () {\n      if (!_found$1) {\n        _found$1 = require$1('@ember-data/model/-private')._modelForMixin;\n      }\n\n      return _found$1(...arguments);\n    };\n  }\n  /**\n   *\n   * @param store\n   * @param cache modelFactoryCache\n   * @param normalizedModelName already normalized modelName\n   * @return {*}\n   */\n\n  function getModelFactory(store, cache, normalizedModelName) {\n    var factory = cache[normalizedModelName];\n\n    if (!factory) {\n      factory = _lookupModelFactory(store, normalizedModelName);\n\n      if (!factory && true\n      /* HAS_MODEL_PACKAGE */\n      ) {\n        //Support looking up mixins as base types for polymorphic relationships\n        factory = _modelForMixin(store, normalizedModelName);\n      }\n\n      if (!factory) {\n        // we don't cache misses in case someone wants to register a missing model\n        return null;\n      }\n\n      var klass = factory.class;\n\n      if (klass.isModel) {\n        var hasOwnModelNameSet = klass.modelName && Object.prototype.hasOwnProperty.call(klass, 'modelName');\n\n        if (!hasOwnModelNameSet) {\n          Object.defineProperty(klass, 'modelName', {\n            value: normalizedModelName\n          });\n        }\n      }\n\n      cache[normalizedModelName] = factory;\n    }\n\n    return factory;\n  }\n  function _lookupModelFactory(store, normalizedModelName) {\n    var owner = Ember.getOwner(store);\n    return owner.factoryFor(`model:${normalizedModelName}`);\n  }\n\n  /**\n    The store service contains all of the data for records loaded from the server.\n    It is also responsible for creating instances of `Model` that wrap\n    the individual data for a record, so that they can be bound to in your\n    Handlebars templates.\n\n    By default, applications will have a single `Store` service that is\n    automatically created.\n\n    The store can be customized by extending the service in the following manner:\n\n    ```app/services/store.js\n    import Store from '@ember-data/store';\n\n    export default class MyStore extends Store {}\n    ```\n\n    You can retrieve models from the store in several ways. To retrieve a record\n    for a specific id, use the `Store`'s `findRecord()` method:\n\n    ```javascript\n    store.findRecord('person', 123).then(function (person) {\n    });\n    ```\n\n    By default, the store will talk to your backend using a standard\n    REST mechanism. You can customize how the store talks to your\n    backend by specifying a custom adapter:\n\n    ```app/adapters/application.js\n    import DS from 'ember-data';\n\n    export default Adapter.extend({\n    });\n    ```\n\n    You can learn more about writing a custom adapter by reading the `Adapter`\n    documentation.\n\n    ### Store createRecord() vs. push() vs. pushPayload()\n\n    The store provides multiple ways to create new record objects. They have\n    some subtle differences in their use which are detailed below:\n\n    [createRecord](Store/methods/createRecord?anchor=createRecord) is used for creating new\n    records on the client side. This will return a new record in the\n    `created.uncommitted` state. In order to persist this record to the\n    backend, you will need to call `record.save()`.\n\n    [push](Store/methods/push?anchor=push) is used to notify Ember Data's store of new or\n    updated records that exist in the backend. This will return a record\n    in the `loaded.saved` state. The primary use-case for `store#push` is\n    to notify Ember Data about record updates (full or partial) that happen\n    outside of the normal adapter methods (for example\n    [SSE](http://dev.w3.org/html5/eventsource/) or [Web\n    Sockets](http://www.w3.org/TR/2009/WD-websockets-20091222/)).\n\n    [pushPayload](Store/methods/pushPayload?anchor=pushPayload) is a convenience wrapper for\n    `store#push` that will deserialize payloads if the\n    Serializer implements a `pushPayload` method.\n\n    Note: When creating a new record using any of the above methods\n    Ember Data will update `RecordArray`s such as those returned by\n    `store#peekAll()` or `store#findAll()`. This means any\n    data bindings or computed properties that depend on the RecordArray\n    will automatically be synced to include the new or updated record\n    values.\n\n    @class Store\n    @main @ember-data/store\n    @extends Ember.Service\n  */\n  class Store extends CoreStore {\n    constructor(...args) {\n      super(...args);\n      this._modelFactoryCache = Object.create(null);\n      this._relationshipsDefCache = Object.create(null);\n      this._attributesDefCache = Object.create(null);\n    }\n\n    instantiateRecord(identifier, createRecordArgs, recordDataFor, notificationManager) {\n      var modelName = identifier.type;\n\n      var internalModel = this._internalModelForResource(identifier);\n\n      var createOptions = {\n        store: this,\n        _internalModel: internalModel,\n        currentState: internalModel.currentState,\n        container: null\n      };\n      Ember.assign(createOptions, createRecordArgs); // ensure that `getOwner(this)` works inside a model instance\n\n      Ember.setOwner(createOptions, Ember.getOwner(this));\n      delete createOptions.container;\n\n      var record = this._modelFactoryFor(modelName).create(createOptions); //todo optimize\n\n\n      notificationManager.subscribe(identifier, (identifier, value) => notifyChanges(identifier, value, record, this));\n      return record;\n    }\n\n    teardownRecord(record) {\n      record.destroy();\n    }\n    /**\n    Returns the model class for the particular `modelName`.\n     The class of a model might be useful if you want to get a list of all the\n    relationship names of the model, see\n    [`relationshipNames`](/ember-data/release/classes/Model?anchor=relationshipNames)\n    for example.\n     @method modelFor\n    @param {String} modelName\n    @return {Model}\n      */\n\n\n    modelFor(modelName) {\n      {\n        assertDestroyedStoreOnly$1(this, 'modelFor');\n      }\n\n      ( !(Ember.isPresent(modelName)) && Ember.assert(`You need to pass a model name to the store's modelFor method`, Ember.isPresent(modelName)));\n      ( !(typeof modelName === 'string') && Ember.assert(`Passing classes to store methods has been removed. Please pass a dasherized string instead of ${modelName}`, typeof modelName === 'string'));\n\n      var maybeFactory = this._modelFactoryFor(modelName); // for factorFor factory/class split\n\n\n      var klass = maybeFactory && maybeFactory.class ? maybeFactory.class : maybeFactory;\n\n      if (!klass || !klass.isModel) {\n        {\n          throw new Ember.Error(`No model was found for '${modelName}' and no schema handles the type`);\n        }\n      } else {\n        return klass;\n      }\n    }\n\n    _modelFactoryFor(modelName) {\n      {\n        assertDestroyedStoreOnly$1(this, '_modelFactoryFor');\n      }\n\n      ( !(Ember.isPresent(modelName)) && Ember.assert(`You need to pass a model name to the store's _modelFactoryFor method`, Ember.isPresent(modelName)));\n      ( !(typeof modelName === 'string') && Ember.assert(`Passing classes to store methods has been removed. Please pass a dasherized string instead of ${modelName}`, typeof modelName === 'string'));\n      var normalizedModelName = normalizeModelName(modelName);\n      var factory = getModelFactory(this, this._modelFactoryCache, normalizedModelName);\n      return factory;\n    }\n    /*\n    Returns whether a ModelClass exists for a given modelName\n    This exists for legacy support for the RESTSerializer,\n    which due to how it must guess whether a key is a model\n    must query for whether a match exists.\n     We should investigate an RFC to make this public or removing\n    this requirement.\n     @private\n    */\n\n\n    _hasModelFor(modelName) {\n      {\n        assertDestroyingStore$1(this, '_hasModelFor');\n      }\n\n      ( !(Ember.isPresent(modelName)) && Ember.assert(`You need to pass a model name to the store's hasModelFor method`, Ember.isPresent(modelName)));\n      ( !(typeof modelName === 'string') && Ember.assert(`Passing classes to store methods has been removed. Please pass a dasherized string instead of ${modelName}`, typeof modelName === 'string'));\n\n      {\n        ( !(Ember.isPresent(modelName)) && Ember.assert(`You need to pass a model name to the store's hasModelFor method`, Ember.isPresent(modelName)));\n        ( !(typeof modelName === 'string') && Ember.assert(`Passing classes to store methods has been removed. Please pass a dasherized string instead of ${modelName}`, typeof modelName === 'string'));\n        var normalizedModelName = normalizeModelName(modelName);\n        var factory = getModelFactory(this, this._modelFactoryCache, normalizedModelName);\n        return factory !== null;\n      }\n    }\n\n    _relationshipMetaFor(modelName, id, key) {\n      {\n        var modelClass = this.modelFor(modelName);\n        var relationshipsByName = Ember.get(modelClass, 'relationshipsByName');\n        return relationshipsByName.get(key);\n      }\n    }\n\n    _attributesDefinitionFor(modelName, identifier) {\n      {\n        var attributes = this._attributesDefCache[modelName];\n\n        if (attributes === undefined) {\n          var modelClass = this.modelFor(modelName);\n          var attributeMap = Ember.get(modelClass, 'attributes');\n          attributes = Object.create(null);\n          attributeMap.forEach((meta, name) => attributes[name] = meta);\n          this._attributesDefCache[modelName] = attributes;\n        }\n\n        return attributes;\n      }\n    }\n\n    _relationshipsDefinitionFor(modelName, identifier) {\n      {\n        var relationships = this._relationshipsDefCache[modelName];\n\n        if (relationships === undefined) {\n          var modelClass = this.modelFor(modelName);\n          relationships = Ember.get(modelClass, 'relationshipsObject') || null;\n          this._relationshipsDefCache[modelName] = relationships;\n        }\n\n        return relationships;\n      }\n    }\n\n    getSchemaDefinitionService() {\n      {\n        throw 'schema service is only available when custom model class feature flag is on';\n      }\n    }\n\n  }\n\n  var assertDestroyingStore$1;\n  var assertDestroyedStoreOnly$1;\n\n  {\n    assertDestroyingStore$1 = function assertDestroyedStore(store, method) {\n      if (!store.shouldAssertMethodCallsOnDestroyedStore) {\n        ( !(!(store.isDestroying || store.isDestroyed)) && Ember.deprecate(`Attempted to call store.${method}(), but the store instance has already been destroyed.`, !(store.isDestroying || store.isDestroyed), {\n          id: 'ember-data:method-calls-on-destroyed-store',\n          until: '3.8'\n        }));\n      } else {\n        ( !(!(store.isDestroying || store.isDestroyed)) && Ember.assert(`Attempted to call store.${method}(), but the store instance has already been destroyed.`, !(store.isDestroying || store.isDestroyed)));\n      }\n    };\n\n    assertDestroyedStoreOnly$1 = function assertDestroyedStoreOnly(store, method) {\n      if (!store.shouldAssertMethodCallsOnDestroyedStore) {\n        ( !(!store.isDestroyed) && Ember.deprecate(`Attempted to call store.${method}(), but the store instance has already been destroyed.`, !store.isDestroyed, {\n          id: 'ember-data:method-calls-on-destroyed-store',\n          until: '3.8'\n        }));\n      } else {\n        ( !(!store.isDestroyed) && Ember.assert(`Attempted to call store.${method}(), but the store instance has already been destroyed.`, !store.isDestroyed));\n      }\n    };\n  }\n\n  /**\n    @module @ember-data/store\n  */\n\n  /**\n    @method diffArray\n    @private\n    @param {Array} oldArray the old array\n    @param {Array} newArray the new array\n    @return {hash} {\n        firstChangeIndex: <integer>,  // null if no change\n        addedCount: <integer>,        // 0 if no change\n        removedCount: <integer>       // 0 if no change\n      }\n  */\n  function diffArray(oldArray, newArray) {\n    var oldLength = oldArray.length;\n    var newLength = newArray.length;\n    var shortestLength = Math.min(oldLength, newLength);\n    var firstChangeIndex = null; // null signifies no changes\n    // find the first change\n\n    for (var i = 0; i < shortestLength; i++) {\n      // compare each item in the array\n      if (oldArray[i] !== newArray[i]) {\n        firstChangeIndex = i;\n        break;\n      }\n    }\n\n    if (firstChangeIndex === null && newLength !== oldLength) {\n      // no change found in the overlapping block\n      // and array lengths differ,\n      // so change starts at end of overlap\n      firstChangeIndex = shortestLength;\n    }\n\n    var addedCount = 0;\n    var removedCount = 0;\n\n    if (firstChangeIndex !== null) {\n      // we found a change, find the end of the change\n      var unchangedEndBlockLength = shortestLength - firstChangeIndex; // walk back from the end of both arrays until we find a change\n\n      for (var _i = 1; _i <= shortestLength; _i++) {\n        // compare each item in the array\n        if (oldArray[oldLength - _i] !== newArray[newLength - _i]) {\n          unchangedEndBlockLength = _i - 1;\n          break;\n        }\n      }\n\n      addedCount = newLength - unchangedEndBlockLength - firstChangeIndex;\n      removedCount = oldLength - unchangedEndBlockLength - firstChangeIndex;\n    }\n\n    return {\n      firstChangeIndex,\n      addedCount,\n      removedCount\n    };\n  }\n\n  /**\n    @module @ember-data/store\n  */\n  function typeForRelationshipMeta(meta) {\n    var modelName;\n    modelName = meta.type || meta.key;\n    modelName = normalizeModelName(modelName);\n\n    if (meta.kind === 'hasMany') {\n      modelName = emberInflector.singularize(modelName);\n    }\n\n    return modelName;\n  }\n\n  function shouldFindInverse(relationshipMeta) {\n    var options = relationshipMeta.options;\n    return !(options && options.inverse === null);\n  }\n\n  class RelationshipDefinition {\n    constructor(meta) {\n      this.meta = meta;\n      this[BRAND_SYMBOL] = void 0;\n      this._type = '';\n      this.__inverseKey = '';\n      this.__inverseIsAsync = true;\n      this.__hasCalculatedInverse = false;\n      this.parentModelName = void 0;\n      this.inverse = void 0;\n      this.inverseIsAsync = void 0;\n      this.parentModelName = meta.parentModelName;\n    }\n\n    get key() {\n      return this.meta.key;\n    }\n\n    get kind() {\n      return this.meta.kind;\n    }\n\n    get type() {\n      if (this._type) {\n        return this._type;\n      }\n\n      this._type = typeForRelationshipMeta(this.meta);\n      return this._type;\n    }\n\n    get options() {\n      return this.meta.options;\n    }\n\n    get name() {\n      return this.meta.name;\n    }\n\n    _inverseKey(store, modelClass) {\n      if (this.__hasCalculatedInverse === false) {\n        this._calculateInverse(store, modelClass);\n      }\n\n      return this.__inverseKey;\n    }\n\n    _inverseIsAsync(store, modelClass) {\n      if (this.__hasCalculatedInverse === false) {\n        this._calculateInverse(store, modelClass);\n      }\n\n      return this.__inverseIsAsync;\n    }\n\n    _calculateInverse(store, modelClass) {\n      this.__hasCalculatedInverse = true;\n      var inverseKey, inverseIsAsync;\n      var inverse = null;\n\n      if (shouldFindInverse(this.meta)) {\n        inverse = modelClass.inverseFor(this.key, store);\n      } else {\n        modelClass.typeForRelationship(this.key, store);\n      }\n\n      if (inverse) {\n        inverseKey = inverse.name;\n        inverseIsAsync = isInverseAsync(inverse);\n      } else {\n        inverseKey = null;\n        inverseIsAsync = false;\n      }\n\n      this.__inverseKey = inverseKey;\n      this.__inverseIsAsync = inverseIsAsync;\n    }\n\n  }\n\n  function isInverseAsync(meta) {\n    var inverseAsync = meta.options && meta.options.async;\n    return typeof inverseAsync === 'undefined' ? true : inverseAsync;\n  }\n\n  function relationshipFromMeta(meta) {\n    return new RelationshipDefinition(meta);\n  }\n\n  exports.AdapterPopulatedRecordArray = AdapterPopulatedRecordArray;\n  exports.DeprecatedEvented = DeprecatedEvented$1;\n  exports.InternalModel = InternalModel;\n  exports.PromiseArray = PromiseArray;\n  exports.PromiseObject = PromiseObject;\n  exports.RecordArray = RecordArray;\n  exports.RecordArrayManager = RecordArrayManager;\n  exports.RecordDataStoreWrapper = RecordDataStoreWrapper;\n  exports.RootState = RootState$1;\n  exports.Snapshot = Snapshot;\n  exports.SnapshotRecordArray = SnapshotRecordArray;\n  exports.Store = Store;\n  exports._bind = _bind;\n  exports._guard = _guard;\n  exports._objectIsAlive = _objectIsAlive;\n  exports.coerceId = coerceId;\n  exports.diffArray = diffArray;\n  exports.errorsArrayToHash = errorsArrayToHash;\n  exports.errorsHashToArray = errorsHashToArray;\n  exports.guardDestroyedStore = guardDestroyedStore;\n  exports.identifierCacheFor = identifierCacheFor;\n  exports.normalizeModelName = normalizeModelName;\n  exports.recordDataFor = recordDataFor;\n  exports.recordIdentifierFor = recordIdentifierFor;\n  exports.relationshipFromMeta = relationshipFromMeta;\n  exports.setIdentifierForgetMethod = setIdentifierForgetMethod;\n  exports.setIdentifierGenerationMethod = setIdentifierGenerationMethod;\n  exports.setIdentifierResetMethod = setIdentifierResetMethod;\n  exports.setIdentifierUpdateMethod = setIdentifierUpdateMethod;\n  exports.typeForRelationshipMeta = typeForRelationshipMeta;\n  exports.upgradeForInternal = upgradeForInternal;\n\n  Object.defineProperty(exports, '__esModule', { value: true });\n\n});\n","define(\"@ember-data/store/index\", [\"exports\", \"@ember-data/store/-private\"], function (_exports, _private) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"default\", {\n    enumerable: true,\n    get: function () {\n      return _private.Store;\n    }\n  });\n  Object.defineProperty(_exports, \"normalizeModelName\", {\n    enumerable: true,\n    get: function () {\n      return _private.normalizeModelName;\n    }\n  });\n  Object.defineProperty(_exports, \"setIdentifierGenerationMethod\", {\n    enumerable: true,\n    get: function () {\n      return _private.setIdentifierGenerationMethod;\n    }\n  });\n  Object.defineProperty(_exports, \"setIdentifierUpdateMethod\", {\n    enumerable: true,\n    get: function () {\n      return _private.setIdentifierUpdateMethod;\n    }\n  });\n  Object.defineProperty(_exports, \"setIdentifierForgetMethod\", {\n    enumerable: true,\n    get: function () {\n      return _private.setIdentifierForgetMethod;\n    }\n  });\n  Object.defineProperty(_exports, \"setIdentifierResetMethod\", {\n    enumerable: true,\n    get: function () {\n      return _private.setIdentifierResetMethod;\n    }\n  });\n  Object.defineProperty(_exports, \"recordIdentifierFor\", {\n    enumerable: true,\n    get: function () {\n      return _private.recordIdentifierFor;\n    }\n  });\n});","define('@ember/ordered-set/index', ['exports'], function (exports) {\n  'use strict';\n\n  Object.defineProperty(exports, \"__esModule\", {\n    value: true\n  });\n\n\n  const NEEDS_CUSTOM_ORDERED_SET = true;\n\n  let OrderedSet;\n\n  if (NEEDS_CUSTOM_ORDERED_SET) {\n    /**\n    @class OrderedSet\n    @constructor\n    */\n    OrderedSet = class OrderedSet {\n      constructor() {\n        this.clear();\n      }\n\n      /**\n      @method create\n      @static\n      @return {OrderedSet}\n      */\n      static create() {\n        let Constructor = this;\n        return new Constructor();\n      }\n\n      /**\n      @method clear\n      */\n      clear() {\n        this.presenceSet = Object.create(null);\n        this.list = [];\n        this.size = 0;\n      }\n\n      /**\n      @method add\n      @param {*} obj\n      @param {string} [_guid] (for internal use)\n      @return {OrderedSet}\n      */\n      add(obj, _guid) {\n        let guid = _guid || Ember.guidFor(obj);\n        let presenceSet = this.presenceSet;\n        let list = this.list;\n\n        if (presenceSet[guid] !== true) {\n          presenceSet[guid] = true;\n          this.size = list.push(obj);\n        }\n\n        return this;\n      }\n\n      /**\n      @method delete\n      @param {*} obj\n      @param {string} [_guid] (for internal use)\n      @return {Boolean}\n      */\n      delete(obj, _guid) {\n        let guid = _guid || Ember.guidFor(obj);\n        let presenceSet = this.presenceSet;\n        let list = this.list;\n\n        if (presenceSet[guid] === true) {\n          delete presenceSet[guid];\n          let index = list.indexOf(obj);\n          if (index > -1) {\n            list.splice(index, 1);\n          }\n          this.size = list.length;\n          return true;\n        } else {\n          return false;\n        }\n      }\n\n      /**\n      @method isEmpty\n      @return {Boolean}\n      */\n      isEmpty() {\n        return this.size === 0;\n      }\n\n      /**\n      @method has\n      @param {*} obj\n      @return {Boolean}\n      */\n      has(obj) {\n        if (this.size === 0) {\n          return false;\n        }\n\n        let guid = Ember.guidFor(obj);\n        let presenceSet = this.presenceSet;\n\n        return presenceSet[guid] === true;\n      }\n\n      /**\n      @method forEach\n      @param {Function} fn\n      @param self\n      */\n      forEach(fn /*, ...thisArg*/) {\n        (true && !(typeof fn === 'function') && Ember.assert(`${Object.prototype.toString.call(fn)} is not a function`, typeof fn === 'function'));\n\n\n        if (this.size === 0) {\n          return;\n        }\n\n        let list = this.list;\n\n        if (arguments.length === 2) {\n          for (let i = 0; i < list.length; i++) {\n            fn.call(arguments[1], list[i]);\n          }\n        } else {\n          for (let i = 0; i < list.length; i++) {\n            fn(list[i]);\n          }\n        }\n      }\n\n      /**\n      @method toArray\n      @return {Array}\n      */\n      toArray() {\n        return this.list.slice();\n      }\n\n      /**\n      @method copy\n      @return {OrderedSet}\n      */\n      copy() {\n        let Constructor = this.constructor;\n        let set = new Constructor();\n\n        set.presenceSet = Object.create(null);\n\n        for (let prop in this.presenceSet) {\n          // hasOwnPropery is not needed because obj is Object.create(null);\n          set.presenceSet[prop] = this.presenceSet[prop];\n        }\n\n        set.list = this.toArray();\n        set.size = this.size;\n\n        return set;\n      }\n    };\n  } else {\n    OrderedSet = Ember.__OrderedSet__ || Ember.OrderedSet;\n  }\n\n  exports.default = OrderedSet;\n});","define(\"@glimmer/component/-private/base-component-manager\", [\"exports\", \"@glimmer/component/-private/component\"], function (_exports, _component) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = BaseComponentManager;\n\n  function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }\n\n  /**\n   * This factory function returns a component manager class with common behavior\n   * that can be extend to add Glimmer.js- or Ember.js-specific functionality. As\n   * these environments converge, the need for two component manager\n   * implementations (and thus this factory) should go away.\n   */\n  function BaseComponentManager(setOwner, getOwner, capabilities) {\n    var _temp;\n\n    return _temp = class {\n      static create(attrs) {\n        let owner = getOwner(attrs);\n        return new this(owner);\n      }\n\n      constructor(owner) {\n        _defineProperty(this, \"capabilities\", capabilities);\n\n        setOwner(this, owner);\n      }\n\n      createComponent(ComponentClass, args) {\n        if (true\n        /* DEBUG */\n        ) {\n          _component.ARGS_SET.set(args.named, true);\n        }\n\n        return new ComponentClass(getOwner(this), args.named);\n      }\n\n      getContext(component) {\n        return component;\n      }\n\n    }, _temp;\n  }\n});","define(\"@glimmer/component/-private/component\", [\"exports\", \"@glimmer/component/-private/owner\", \"@glimmer/component/-private/destroyables\"], function (_exports, _owner, _destroyables) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = _exports.ARGS_SET = void 0;\n\n  function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }\n\n  let ARGS_SET;\n  _exports.ARGS_SET = ARGS_SET;\n\n  if (true\n  /* DEBUG */\n  ) {\n    _exports.ARGS_SET = ARGS_SET = new WeakMap();\n  }\n  /**\n   * The `Component` class defines an encapsulated UI element that is rendered to\n   * the DOM. A component is made up of a template and, optionally, this component\n   * object.\n   *\n   * ## Defining a Component\n   *\n   * To define a component, subclass `Component` and add your own properties,\n   * methods and lifecycle hooks:\n   *\n   * ```ts\n   * import Component from '@glimmer/component';\n   *\n   * export default class extends Component {\n   * }\n   * ```\n   *\n   * ## Lifecycle Hooks\n   *\n   * Lifecycle hooks allow you to respond to changes to a component, such as when\n   * it gets created, rendered, updated or destroyed. To add a lifecycle hook to a\n   * component, implement the hook as a method on your component subclass.\n   *\n   * For example, to be notified when Glimmer has rendered your component so you\n   * can attach a legacy jQuery plugin, implement the `didInsertElement()` method:\n   *\n   * ```ts\n   * import Component from '@glimmer/component';\n   *\n   * export default class extends Component {\n   *   didInsertElement() {\n   *     $(this.element).pickadate();\n   *   }\n   * }\n   * ```\n   *\n   * ## Data for Templates\n   *\n   * `Component`s have two different kinds of data, or state, that can be\n   * displayed in templates:\n   *\n   * 1. Arguments\n   * 2. Properties\n   *\n   * Arguments are data that is passed in to a component from its parent\n   * component. For example, if I have a `UserGreeting` component, I can pass it\n   * a name and greeting to use:\n   *\n   * ```hbs\n   * <UserGreeting @name=\"Ricardo\" @greeting=\"Olá\" />\n   * ```\n   *\n   * Inside my `UserGreeting` template, I can access the `@name` and `@greeting`\n   * arguments that I've been given:\n   *\n   * ```hbs\n   * {{@greeting}}, {{@name}}!\n   * ```\n   *\n   * Arguments are also available inside my component:\n   *\n   * ```ts\n   * console.log(this.args.greeting); // prints \"Olá\"\n   * ```\n   *\n   * Properties, on the other hand, are internal to the component and declared in\n   * the class. You can use properties to store data that you want to show in the\n   * template, or pass to another component as an argument.\n   *\n   * ```ts\n   * import Component from '@glimmer/component';\n   *\n   * export default class extends Component {\n   *   user = {\n   *     name: 'Robbie'\n   *   }\n   * }\n   * ```\n   *\n   * In the above example, we've defined a component with a `user` property that\n   * contains an object with its own `name` property.\n   *\n   * We can render that property in our template:\n   *\n   * ```hbs\n   * Hello, {{user.name}}!\n   * ```\n   *\n   * We can also take that property and pass it as an argument to the\n   * `UserGreeting` component we defined above:\n   *\n   * ```hbs\n   * <UserGreeting @greeting=\"Hello\" @name={{user.name}} />\n   * ```\n   *\n   * ## Arguments vs. Properties\n   *\n   * Remember, arguments are data that was given to your component by its parent\n   * component, and properties are data your component has defined for itself.\n   *\n   * You can tell the difference between arguments and properties in templates\n   * because arguments always start with an `@` sign (think \"A is for arguments\"):\n   *\n   * ```hbs\n   * {{@firstName}}\n   * ```\n   *\n   * We know that `@firstName` came from the parent component, not the current\n   * component, because it starts with `@` and is therefore an argument.\n   *\n   * On the other hand, if we see:\n   *\n   * ```hbs\n   * {{name}}\n   * ```\n   *\n   * We know that `name` is a property on the component. If we want to know where\n   * the data is coming from, we can go look at our component class to find out.\n   *\n   * Inside the component itself, arguments always show up inside the component's\n   * `args` property. For example, if `{{@firstName}}` is `Tom` in the template,\n   * inside the component `this.args.firstName` would also be `Tom`.\n   */\n\n\n  class BaseComponent {\n    /**\n     * Constructs a new component and assigns itself the passed properties. You\n     * should not construct new components yourself. Instead, Glimmer will\n     * instantiate new components automatically as it renders.\n     *\n     * @param owner\n     * @param args\n     */\n    constructor(owner, args) {\n      _defineProperty(this, \"args\", void 0);\n\n      if (true\n      /* DEBUG */\n      && !(owner !== null && typeof owner === 'object' && ARGS_SET.has(args))) {\n        throw new Error(`You must pass both the owner and args to super() in your component: ${this.constructor.name}. You can pass them directly, or use ...arguments to pass all arguments through.`);\n      }\n\n      this.args = args;\n      (0, _owner.setOwner)(this, owner);\n    }\n    /**\n     * Named arguments passed to the component from its parent component.\n     * They can be accessed in JavaScript via `this.args.argumentName` and in the template via `@argumentName`.\n     *\n     * Say you have the following component, which will have two `args`, `firstName` and `lastName`:\n     *\n     * ```hbs\n     * <my-component @firstName=\"Arthur\" @lastName=\"Dent\" />\n     * ```\n     *\n     * If you needed to calculate `fullName` by combining both of them, you would do:\n     *\n     * ```ts\n     * didInsertElement() {\n     *   console.log(`Hi, my full name is ${this.args.firstName} ${this.args.lastName}`);\n     * }\n     * ```\n     *\n     * While in the template you could do:\n     *\n     * ```hbs\n     * <p>Welcome, {{@firstName}} {{@lastName}}!</p>\n     * ```\n     */\n\n\n    get isDestroying() {\n      return (0, _destroyables.isDestroying)(this);\n    }\n\n    get isDestroyed() {\n      return (0, _destroyables.isDestroyed)(this);\n    }\n    /**\n     * Called before the component has been removed from the DOM.\n     */\n\n\n    willDestroy() {}\n\n  }\n\n  _exports.default = BaseComponent;\n});","define(\"@glimmer/component/-private/destroyables\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.setDestroying = setDestroying;\n  _exports.setDestroyed = setDestroyed;\n  _exports.isDestroying = isDestroying;\n  _exports.isDestroyed = isDestroyed;\n  const DESTROYING = new WeakMap();\n  const DESTROYED = new WeakMap(); // TODO: remove once glimmer.js is updated to glimmer-vm 0.54.0+ and can use the destroyables API directly\n\n  function setDestroying(component) {\n    DESTROYING.set(component, true);\n  }\n\n  function setDestroyed(component) {\n    DESTROYED.set(component, true);\n  }\n\n  function isDestroying(component) {\n    return DESTROYING.has(component);\n  }\n\n  function isDestroyed(component) {\n    return DESTROYED.has(component);\n  }\n});","define(\"@glimmer/component/-private/ember-component-manager\", [\"exports\", \"@glimmer/component/-private/base-component-manager\", \"@glimmer/component/-private/destroyables\"], function (_exports, _baseComponentManager, _destroyables) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n  const CAPABILITIES = true ? Ember._componentManagerCapabilities('3.13', {\n    destructor: true,\n    asyncLifecycleCallbacks: false,\n    updateHook: false\n  }) : Ember._componentManagerCapabilities('3.4', {\n    destructor: true,\n    asyncLifecycleCallbacks: false\n  });\n  const scheduledDestroyComponent = false // @ts-ignore\n  // @ts-ignore\n  ? undefined : (component, meta) => {\n    if (component.isDestroyed) {\n      return;\n    }\n\n    Ember.destroy(component);\n    meta.setSourceDestroyed();\n    (0, _destroyables.setDestroyed)(component);\n  };\n  const destroy = false ? Ember.__loader.require('@glimmer/runtime').destroy : component => {\n    if (component.isDestroying) {\n      return;\n    }\n\n    let meta = Ember.meta(component);\n    meta.setSourceDestroying();\n    (0, _destroyables.setDestroying)(component);\n    Ember.run.schedule('actions', component, component.willDestroy);\n    Ember.run.schedule('destroy', void 0, scheduledDestroyComponent, component, meta);\n  };\n  const registerDestructor = false ? Ember.__loader.require('@glimmer/runtime').registerDestructor : undefined;\n  /**\n   * This component manager runs in Ember.js environments and extends the base component manager to:\n   *\n   * 1. Properly destroy the component's associated `meta` data structure\n   * 2. Schedule destruction using Ember's runloop\n   */\n\n  class EmberGlimmerComponentManager extends (0, _baseComponentManager.default)(Ember.setOwner, Ember.getOwner, CAPABILITIES) {\n    createComponent(ComponentClass, args) {\n      const component = super.createComponent(ComponentClass, args);\n\n      if (false) {\n        registerDestructor(component, () => {\n          component.willDestroy();\n        });\n      }\n\n      return component;\n    }\n\n    destroyComponent(component) {\n      destroy(component);\n    }\n\n  }\n\n  // In Ember 3.12 and earlier, the updateComponent hook was mandatory.\n  // As of Ember 3.13, the `args` object is stable and each property of the\n  // object participates in the autotrack stack on its own. This means we do not\n  // need to set the `args` property on the component instance to invalidate\n  // tracked getters that rely on `args`, and therefore don't require the `updateComponent`\n  // hook at all.\n  if (!true) {\n    EmberGlimmerComponentManager.prototype.updateComponent = function updateComponent(component, args) {\n      let argSnapshot = args.named;\n\n      if (true\n      /* DEBUG */\n      ) {\n        argSnapshot = Object.freeze(argSnapshot);\n      }\n\n      Ember.set(component, 'args', argSnapshot);\n    };\n  }\n\n  var _default = EmberGlimmerComponentManager;\n  _exports.default = _default;\n});","define(\"@glimmer/component/-private/owner\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.setOwner = void 0;\n  var setOwner = Ember.setOwner;\n  _exports.setOwner = setOwner;\n});","define(\"@glimmer/component/index\", [\"exports\", \"@glimmer/component/-private/ember-component-manager\", \"@glimmer/component/-private/component\"], function (_exports, _emberComponentManager, _component) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n  let GlimmerComponent = _component.default;\n\n  if (true\n  /* DEBUG */\n  ) {\n    // Add assertions against using Glimmer.js only APIs\n    // TODO: Add GlimmerComponent API docs link to these messages once API docs are live\n    function throwMethodUseError(methodName) {\n      throw new Error(`You attempted to define the '${methodName}' method on a Glimmer Component, but that lifecycle hook does not exist in Ember.js applications, it only exists in Glimmer.js apps. You can rename this method, and you can trigger it using a modifier such as {{did-insert}} from '@ember/render-modifiers': https://github.com/emberjs/ember-render-modifiers.`);\n    }\n\n    function throwPropertyUseError(propertyName) {\n      throw new Error(`You attempted to access the '${propertyName}' property on a Glimmer Component, but that property does not exist in Ember.js applications, it only exists in Glimmer.js apps. You define a class field with the same name on your component class and it will overwrite this error message, but it will not be used by the framework.`);\n    }\n\n    GlimmerComponent = class GlimmerDebugComponent extends GlimmerComponent {\n      constructor(owner, args) {\n        super(owner, args);\n\n        if (typeof this['didInsertElement'] === 'function') {\n          throwMethodUseError('didInsertElement');\n        }\n\n        if (typeof this['didUpdate'] === 'function') {\n          throwMethodUseError('didUpdate');\n        }\n      }\n\n    };\n    let proto = GlimmerComponent.prototype;\n\n    function defineErrorProp(proto, key, getterMethod) {\n      Object.defineProperty(proto, key, {\n        get: () => getterMethod(key),\n\n        set(value) {\n          Object.defineProperty(this, key, {\n            value\n          });\n        }\n\n      });\n    } // Methods should still throw whenever they are accessed\n\n\n    defineErrorProp(proto, 'bounds', throwPropertyUseError);\n    defineErrorProp(proto, 'element', throwPropertyUseError);\n    defineErrorProp(proto, 'debugName', throwPropertyUseError);\n  }\n\n  if (true) {\n    Ember._setComponentManager(owner => {\n      return new _emberComponentManager.default(owner);\n    }, GlimmerComponent);\n  } else {\n    Ember._setComponentManager('glimmer', GlimmerComponent);\n  }\n\n  var _default = GlimmerComponent;\n  _exports.default = _default;\n});","define('ember-cli-app-version/initializer-factory', ['exports'], function (exports) {\n  'use strict';\n\n  Object.defineProperty(exports, \"__esModule\", {\n    value: true\n  });\n  exports.default = initializerFactory;\n\n\n  const {\n    libraries\n  } = Ember;\n\n  function initializerFactory(name, version) {\n    let registered = false;\n\n    return function () {\n      if (!registered && name && version) {\n        let appName = Ember.String.classify(name);\n        libraries.register(appName, version);\n        registered = true;\n      }\n    };\n  }\n});","define(\"ember-cli-app-version/utils/regexp\", [\"exports\"], function (exports) {\n  \"use strict\";\n\n  Object.defineProperty(exports, \"__esModule\", {\n    value: true\n  });\n  const versionRegExp = exports.versionRegExp = /\\d+[.]\\d+[.]\\d+/; // Match any number of 3 sections of digits separated by .\n  const versionExtendedRegExp = exports.versionExtendedRegExp = /\\d+[.]\\d+[.]\\d+-[a-z]*([.]\\d+)?/; // Match the above but also hyphen followed by any number of lowercase letters, then optionally period and digits\n  const shaRegExp = exports.shaRegExp = /[a-z\\d]{8}$/; // Match 8 lowercase letters and digits, at the end of the string only (to avoid matching with version extended part)\n});","define(\"ember-cli-fastboot/instance-initializers/clear-double-boot\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.clearHtml = clearHtml;\n  _exports.default = void 0;\n\n  // When using `ember serve` when fastboot addon is installed the application\n  // output will already be rendered to the DOM when the actual JavaScript\n  // loads. Ember does not automatically clear its `rootElement` so this\n  // leads to the \"double\" applications being visible at once (only the\n  // \"bottom\" one is running via JS and is interactive).\n  //\n  // This removes any pre-rendered ember-view elements, so that the booting\n  // application will replace the pre-rendered output\n  function clearHtml() {\n    let current = document.getElementById('fastboot-body-start');\n    let endMarker = document.getElementById('fastboot-body-end');\n\n    if (current && endMarker) {\n      let shoeboxNodes = document.querySelectorAll('[type=\"fastboot/shoebox\"]');\n      let shoeboxNodesArray = []; // Note that IE11 doesn't support more concise options like Array.from, so we have to do something like this\n\n      for (let i = 0; i < shoeboxNodes.length; i++) {\n        shoeboxNodesArray.push(shoeboxNodes[i]);\n      }\n\n      let parent = current.parentElement;\n      let nextNode;\n\n      do {\n        nextNode = current.nextSibling;\n        parent.removeChild(current);\n        current = nextNode;\n      } while (nextNode && nextNode !== endMarker && shoeboxNodesArray.indexOf(nextNode) < 0);\n\n      endMarker.parentElement.removeChild(endMarker);\n    }\n  }\n\n  var _default = {\n    name: \"clear-double-boot\",\n\n    initialize(instance) {\n      if (typeof FastBoot === 'undefined') {\n        var originalDidCreateRootView = instance.didCreateRootView;\n\n        instance.didCreateRootView = function () {\n          clearHtml();\n          originalDidCreateRootView.apply(instance, arguments);\n        };\n      }\n    }\n\n  };\n  _exports.default = _default;\n});","define(\"ember-cli-fastboot/locations/none\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n  const TEMPORARY_REDIRECT_CODE = 307;\n\n  var _default = Ember.NoneLocation.extend({\n    implementation: 'fastboot',\n    fastboot: Ember.inject.service(),\n    _config: Ember.computed(function () {\n      return Ember.getOwner(this).resolveRegistration('config:environment');\n    }),\n    _fastbootHeadersEnabled: Ember.computed.bool('_config.fastboot.fastbootHeaders'),\n    _redirectCode: Ember.computed(function () {\n      return Ember.get(this, '_config.fastboot.redirectCode') || TEMPORARY_REDIRECT_CODE;\n    }),\n    _response: Ember.computed.readOnly('fastboot.response'),\n    _request: Ember.computed.readOnly('fastboot.request'),\n\n    setURL(path) {\n      if (Ember.get(this, 'fastboot.isFastBoot')) {\n        let response = Ember.get(this, '_response');\n        let currentPath = Ember.get(this, 'path');\n        let isInitialPath = !currentPath || currentPath.length === 0;\n\n        if (!isInitialPath) {\n          path = this.formatURL(path);\n          let isTransitioning = currentPath !== path;\n\n          if (isTransitioning) {\n            let host = Ember.get(this, '_request.host');\n            let redirectURL = `//${host}${path}`;\n            response.statusCode = this.get('_redirectCode');\n            response.headers.set('location', redirectURL);\n          }\n        } // for testing and debugging\n\n\n        if (Ember.get(this, '_fastbootHeadersEnabled')) {\n          response.headers.set('x-fastboot-path', path);\n        }\n      }\n\n      this._super(...arguments);\n    }\n\n  });\n\n  _exports.default = _default;\n});","define(\"ember-cli-fastboot/services/fastboot\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /* global FastBoot */\n  const RequestObject = Ember.Object.extend({\n    init() {\n      this._super(...arguments);\n\n      let request = this.request;\n      delete this.request;\n      this.method = request.method;\n      this.body = request.body;\n      this.cookies = request.cookies;\n      this.headers = request.headers;\n      this.queryParams = request.queryParams;\n      this.path = request.path;\n      this.protocol = request.protocol;\n\n      this._host = function () {\n        return request.host();\n      };\n    },\n\n    host: Ember.computed(function () {\n      return this._host();\n    })\n  });\n  const Shoebox = Ember.Object.extend({\n    put(key, value) {\n      (true && !(this.get('fastboot.isFastBoot')) && Ember.assert('shoebox.put is only invoked from the FastBoot rendered application', this.get('fastboot.isFastBoot')));\n      (true && !(typeof key === 'string') && Ember.assert('the provided key is a string', typeof key === 'string'));\n      let fastbootInfo = this.get('fastboot._fastbootInfo');\n\n      if (!fastbootInfo.shoebox) {\n        fastbootInfo.shoebox = {};\n      }\n\n      fastbootInfo.shoebox[key] = value;\n    },\n\n    retrieve(key) {\n      if (this.get('fastboot.isFastBoot')) {\n        let shoebox = this.get('fastboot._fastbootInfo.shoebox');\n\n        if (!shoebox) {\n          return;\n        }\n\n        return shoebox[key];\n      }\n\n      let shoeboxItem = this.get(key);\n\n      if (shoeboxItem) {\n        return shoeboxItem;\n      }\n\n      let el = document.querySelector(`#shoebox-${key}`);\n\n      if (!el) {\n        return;\n      }\n\n      let valueString = el.textContent;\n\n      if (!valueString) {\n        return;\n      }\n\n      shoeboxItem = JSON.parse(valueString);\n      this.set(key, shoeboxItem);\n      return shoeboxItem;\n    }\n\n  });\n  const FastBootService = Ember.Service.extend({\n    cookies: Ember.computed.deprecatingAlias('request.cookies', {\n      id: 'fastboot.cookies-to-request',\n      until: '0.9.9'\n    }),\n    headers: Ember.computed.deprecatingAlias('request.headers', {\n      id: 'fastboot.headers-to-request',\n      until: '0.9.9'\n    }),\n    isFastBoot: typeof FastBoot !== 'undefined',\n\n    init() {\n      this._super(...arguments);\n\n      let shoebox = Shoebox.create({\n        fastboot: this\n      });\n      this.set('shoebox', shoebox);\n    },\n\n    host: Ember.computed(function () {\n      (true && !(false) && Ember.deprecate('Usage of fastboot service\\'s `host` property is deprecated.  Please use `request.host` instead.', false, {\n        id: 'fastboot.host-to-request',\n        until: '0.9.9'\n      }));\n      return this._fastbootInfo.request.host();\n    }),\n    response: Ember.computed.readOnly('_fastbootInfo.response'),\n    metadata: Ember.computed.readOnly('_fastbootInfo.metadata'),\n    request: Ember.computed(function () {\n      if (!this.isFastBoot) return null;\n      return RequestObject.create({\n        request: Ember.get(this, '_fastbootInfo.request')\n      });\n    }),\n\n    deferRendering(promise) {\n      (true && !(typeof promise.then === 'function') && Ember.assert('deferRendering requires a promise or thennable object', typeof promise.then === 'function'));\n\n      this._fastbootInfo.deferRendering(promise);\n    }\n\n  });\n  var _default = FastBootService;\n  _exports.default = _default;\n});","define('ember-data/-private', ['exports', '@ember-data/store', 'ember-data/version', '@ember-data/model/-private', '@ember-data/store/-private', '@ember-data/record-data/-private'], function (exports, store, VERSION, Private, Private$1, Private$2) { 'use strict';\n\n  store = store && Object.prototype.hasOwnProperty.call(store, 'default') ? store['default'] : store;\n  VERSION = VERSION && Object.prototype.hasOwnProperty.call(VERSION, 'default') ? VERSION['default'] : VERSION;\n\n  /**\n   * @property VERSION\n   * @public\n   * @static\n   * @for @ember-data\n   */\n\n  var DS = Ember.Namespace.create({\n    VERSION: VERSION,\n    name: 'DS'\n  });\n\n  if (Ember.libraries) {\n    Ember.libraries.registerCoreLibrary('Ember Data', VERSION);\n  }\n\n  exports.Store = store;\n  Object.defineProperty(exports, 'Errors', {\n    enumerable: true,\n    get: function () {\n      return Private.Errors;\n    }\n  });\n  Object.defineProperty(exports, 'ManyArray', {\n    enumerable: true,\n    get: function () {\n      return Private.ManyArray;\n    }\n  });\n  Object.defineProperty(exports, 'PromiseManyArray', {\n    enumerable: true,\n    get: function () {\n      return Private.PromiseManyArray;\n    }\n  });\n  Object.defineProperty(exports, 'AdapterPopulatedRecordArray', {\n    enumerable: true,\n    get: function () {\n      return Private$1.AdapterPopulatedRecordArray;\n    }\n  });\n  Object.defineProperty(exports, 'InternalModel', {\n    enumerable: true,\n    get: function () {\n      return Private$1.InternalModel;\n    }\n  });\n  Object.defineProperty(exports, 'PromiseArray', {\n    enumerable: true,\n    get: function () {\n      return Private$1.PromiseArray;\n    }\n  });\n  Object.defineProperty(exports, 'PromiseObject', {\n    enumerable: true,\n    get: function () {\n      return Private$1.PromiseObject;\n    }\n  });\n  Object.defineProperty(exports, 'RecordArray', {\n    enumerable: true,\n    get: function () {\n      return Private$1.RecordArray;\n    }\n  });\n  Object.defineProperty(exports, 'RecordArrayManager', {\n    enumerable: true,\n    get: function () {\n      return Private$1.RecordArrayManager;\n    }\n  });\n  Object.defineProperty(exports, 'RootState', {\n    enumerable: true,\n    get: function () {\n      return Private$1.RootState;\n    }\n  });\n  Object.defineProperty(exports, 'Snapshot', {\n    enumerable: true,\n    get: function () {\n      return Private$1.Snapshot;\n    }\n  });\n  Object.defineProperty(exports, 'SnapshotRecordArray', {\n    enumerable: true,\n    get: function () {\n      return Private$1.SnapshotRecordArray;\n    }\n  });\n  Object.defineProperty(exports, 'coerceId', {\n    enumerable: true,\n    get: function () {\n      return Private$1.coerceId;\n    }\n  });\n  Object.defineProperty(exports, 'normalizeModelName', {\n    enumerable: true,\n    get: function () {\n      return Private$1.normalizeModelName;\n    }\n  });\n  Object.defineProperty(exports, 'RecordData', {\n    enumerable: true,\n    get: function () {\n      return Private$2.RecordData;\n    }\n  });\n  Object.defineProperty(exports, 'Relationship', {\n    enumerable: true,\n    get: function () {\n      return Private$2.Relationship;\n    }\n  });\n  exports.DS = DS;\n\n  Object.defineProperty(exports, '__esModule', { value: true });\n\n});\n","define(\"ember-data/adapter\", [\"exports\", \"@ember-data/adapter\"], function (_exports, _adapter) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"default\", {\n    enumerable: true,\n    get: function () {\n      return _adapter.default;\n    }\n  });\n});","define(\"ember-data/adapters/errors\", [\"exports\", \"@ember-data/adapter/error\"], function (_exports, _error) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"AbortError\", {\n    enumerable: true,\n    get: function () {\n      return _error.AbortError;\n    }\n  });\n  Object.defineProperty(_exports, \"AdapterError\", {\n    enumerable: true,\n    get: function () {\n      return _error.default;\n    }\n  });\n  Object.defineProperty(_exports, \"ConflictError\", {\n    enumerable: true,\n    get: function () {\n      return _error.ConflictError;\n    }\n  });\n  Object.defineProperty(_exports, \"ForbiddenError\", {\n    enumerable: true,\n    get: function () {\n      return _error.ForbiddenError;\n    }\n  });\n  Object.defineProperty(_exports, \"InvalidError\", {\n    enumerable: true,\n    get: function () {\n      return _error.InvalidError;\n    }\n  });\n  Object.defineProperty(_exports, \"NotFoundError\", {\n    enumerable: true,\n    get: function () {\n      return _error.NotFoundError;\n    }\n  });\n  Object.defineProperty(_exports, \"ServerError\", {\n    enumerable: true,\n    get: function () {\n      return _error.ServerError;\n    }\n  });\n  Object.defineProperty(_exports, \"TimeoutError\", {\n    enumerable: true,\n    get: function () {\n      return _error.TimeoutError;\n    }\n  });\n  Object.defineProperty(_exports, \"UnauthorizedError\", {\n    enumerable: true,\n    get: function () {\n      return _error.UnauthorizedError;\n    }\n  });\n  Object.defineProperty(_exports, \"errorsArrayToHash\", {\n    enumerable: true,\n    get: function () {\n      return _error.errorsArrayToHash;\n    }\n  });\n  Object.defineProperty(_exports, \"errorsHashToArray\", {\n    enumerable: true,\n    get: function () {\n      return _error.errorsHashToArray;\n    }\n  });\n});","define(\"ember-data/adapters/json-api\", [\"exports\", \"@ember-data/adapter/json-api\"], function (_exports, _jsonApi) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"default\", {\n    enumerable: true,\n    get: function () {\n      return _jsonApi.default;\n    }\n  });\n});","define(\"ember-data/adapters/rest\", [\"exports\", \"@ember-data/adapter/rest\"], function (_exports, _rest) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"default\", {\n    enumerable: true,\n    get: function () {\n      return _rest.default;\n    }\n  });\n});","define(\"ember-data/attr\", [\"exports\", \"@ember-data/model\"], function (_exports, _model) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"default\", {\n    enumerable: true,\n    get: function () {\n      return _model.attr;\n    }\n  });\n});","define(\"ember-data/index\", [\"exports\", \"ember-inflector\", \"@ember-data/adapter\", \"@ember-data/adapter/error\", \"@ember-data/adapter/json-api\", \"@ember-data/adapter/rest\", \"@ember-data/debug\", \"@ember-data/model\", \"@ember-data/serializer\", \"@ember-data/serializer/-private\", \"@ember-data/serializer/json\", \"@ember-data/serializer/json-api\", \"@ember-data/serializer/rest\", \"@ember-data/serializer/transform\", \"@ember-data/store\", \"ember-data/-private\", \"ember-data/initialize-store-service\", \"ember-data/setup-container\"], function (_exports, _emberInflector, _adapter, _error, _jsonApi, _rest, _debug, _model, _serializer, _private, _json, _jsonApi2, _rest2, _transform, _store, _private2, _initializeStoreService, _setupContainer) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  if (Ember.VERSION.match(/^1\\.([0-9]|1[0-2])\\./)) {\n    throw new Ember.Error('Ember Data requires at least Ember 1.13.0, but you have ' + Ember.VERSION + '. Please upgrade your version of Ember, then upgrade Ember Data.');\n  }\n\n  _private2.DS.Store = _store.default;\n  _private2.DS.PromiseArray = _private2.PromiseArray;\n  _private2.DS.PromiseObject = _private2.PromiseObject;\n  _private2.DS.PromiseManyArray = _private2.PromiseManyArray;\n  _private2.DS.Model = _model.default;\n  _private2.DS.RootState = _private2.RootState;\n  _private2.DS.attr = _model.attr;\n  _private2.DS.Errors = _private2.Errors;\n  _private2.DS.InternalModel = _private2.InternalModel;\n  _private2.DS.Snapshot = _private2.Snapshot;\n  _private2.DS.Adapter = _adapter.default;\n  _private2.DS.AdapterError = _error.default;\n  _private2.DS.InvalidError = _error.InvalidError;\n  _private2.DS.TimeoutError = _error.TimeoutError;\n  _private2.DS.AbortError = _error.AbortError;\n  _private2.DS.UnauthorizedError = _error.UnauthorizedError;\n  _private2.DS.ForbiddenError = _error.ForbiddenError;\n  _private2.DS.NotFoundError = _error.NotFoundError;\n  _private2.DS.ConflictError = _error.ConflictError;\n  _private2.DS.ServerError = _error.ServerError;\n  _private2.DS.errorsHashToArray = _error.errorsHashToArray;\n  _private2.DS.errorsArrayToHash = _error.errorsArrayToHash;\n  _private2.DS.Serializer = _serializer.default;\n  _private2.DS.DebugAdapter = _debug.default;\n  _private2.DS.RecordArray = _private2.RecordArray;\n  _private2.DS.AdapterPopulatedRecordArray = _private2.AdapterPopulatedRecordArray;\n  _private2.DS.ManyArray = _private2.ManyArray;\n  _private2.DS.RecordArrayManager = _private2.RecordArrayManager;\n  _private2.DS.RESTAdapter = _rest.default;\n  _private2.DS.BuildURLMixin = _adapter.BuildURLMixin;\n  _private2.DS.RESTSerializer = _rest2.default;\n  _private2.DS.JSONSerializer = _json.default;\n  _private2.DS.JSONAPIAdapter = _jsonApi.default;\n  _private2.DS.JSONAPISerializer = _jsonApi2.default;\n  _private2.DS.Transform = _transform.default;\n  _private2.DS.DateTransform = _private.DateTransform;\n  _private2.DS.StringTransform = _private.StringTransform;\n  _private2.DS.NumberTransform = _private.NumberTransform;\n  _private2.DS.BooleanTransform = _private.BooleanTransform;\n  _private2.DS.EmbeddedRecordsMixin = _rest2.EmbeddedRecordsMixin;\n  _private2.DS.belongsTo = _model.belongsTo;\n  _private2.DS.hasMany = _model.hasMany;\n  _private2.DS.Relationship = _private2.Relationship;\n  _private2.DS._setupContainer = _setupContainer.default;\n  _private2.DS._initializeStoreService = _initializeStoreService.default;\n  Object.defineProperty(_private2.DS, 'normalizeModelName', {\n    enumerable: true,\n    writable: false,\n    configurable: false,\n    value: _store.normalizeModelName\n  });\n  var _default = _private2.DS;\n  _exports.default = _default;\n});","define(\"ember-data/initialize-store-service\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = initializeStoreService;\n\n  /*\n    Configures a registry for use with an Ember-Data\n    store.\n  \n    @method initializeStoreService\n    @param {Ember.ApplicationInstance | Ember.EngineInstance} instance\n  */\n  function initializeStoreService(instance) {\n    // instance.lookup supports Ember 2.1 and higher\n    // instance.container supports Ember 1.11 - 2.0\n    var container = instance.lookup ? instance : instance.container; // Eagerly generate the store so defaultStore is populated.\n\n    container.lookup('service:store');\n  }\n});","define(\"ember-data/model\", [\"exports\", \"@ember-data/model\"], function (_exports, _model) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"default\", {\n    enumerable: true,\n    get: function () {\n      return _model.default;\n    }\n  });\n});","define(\"ember-data/relationships\", [\"exports\", \"@ember-data/model\"], function (_exports, _model) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"belongsTo\", {\n    enumerable: true,\n    get: function () {\n      return _model.belongsTo;\n    }\n  });\n  Object.defineProperty(_exports, \"hasMany\", {\n    enumerable: true,\n    get: function () {\n      return _model.hasMany;\n    }\n  });\n});","define(\"ember-data/serializer\", [\"exports\", \"@ember-data/serializer\"], function (_exports, _serializer) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"default\", {\n    enumerable: true,\n    get: function () {\n      return _serializer.default;\n    }\n  });\n});","define(\"ember-data/serializers/embedded-records-mixin\", [\"exports\", \"@ember-data/serializer/rest\"], function (_exports, _rest) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"default\", {\n    enumerable: true,\n    get: function () {\n      return _rest.EmbeddedRecordsMixin;\n    }\n  });\n});","define(\"ember-data/serializers/json-api\", [\"exports\", \"@ember-data/serializer/json-api\"], function (_exports, _jsonApi) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"default\", {\n    enumerable: true,\n    get: function () {\n      return _jsonApi.default;\n    }\n  });\n});","define(\"ember-data/serializers/json\", [\"exports\", \"@ember-data/serializer/json\"], function (_exports, _json) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"default\", {\n    enumerable: true,\n    get: function () {\n      return _json.default;\n    }\n  });\n});","define(\"ember-data/serializers/rest\", [\"exports\", \"@ember-data/serializer/rest\"], function (_exports, _rest) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"default\", {\n    enumerable: true,\n    get: function () {\n      return _rest.default;\n    }\n  });\n});","define(\"ember-data/setup-container\", [\"exports\", \"@ember-data/store\"], function (_exports, _store) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = setupContainer;\n\n  function initializeStore(application) {\n    // we can just use registerOptionsForType when we no longer\n    // support (deprecated) versions of @ember/test-helpers\n    // We're issuing a \"private-api\" deprecation for users of the\n    // deprecated @ember/test-helpers versions, but will keep\n    // this for as long as until 4.0 as needed\n    if (true\n    /* DEBUG */\n    && !application.registerOptionsForType) {\n      (true && !(false) && Ember.deprecate(`Deprecated test syntax usage detected!\\n\\n\\t` + `This test relies on a deprecated test setup that is no longer supported by EmberData.` + ` To resolve this you will need to be on a recent version of @ember/test-helpers` + ` AND your tests must use \\`setApplication()\\` instead of \\`setResolver()\\` and` + ` \\`module()\\` with \\`setup*Test()\\`instead of \\`moduleFor*()\\`.`, false, {\n        id: 'ember-data:legacy-test-helper-support',\n        until: '3.17'\n      }));\n      application.optionsForType('serializer', {\n        singleton: false\n      });\n      application.optionsForType('adapter', {\n        singleton: false\n      });\n\n      if (!application.has('service:store')) {\n        application.register('service:store', _store.default);\n      }\n\n      return;\n    }\n\n    application.registerOptionsForType('serializer', {\n      singleton: false\n    });\n    application.registerOptionsForType('adapter', {\n      singleton: false\n    });\n\n    if (!application.hasRegistration('service:store')) {\n      application.register('service:store', _store.default);\n    }\n  }\n\n  function initializeStoreInjections(application) {\n    var inject = application.inject || application.injection;\n    inject.call(application, 'controller', 'store', 'service:store');\n    inject.call(application, 'route', 'store', 'service:store');\n  }\n\n  function setupContainer(application) {\n    initializeStoreInjections(application);\n    initializeStore(application);\n  }\n});","define(\"ember-data/store\", [\"exports\", \"@ember-data/store\"], function (_exports, _store) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"default\", {\n    enumerable: true,\n    get: function () {\n      return _store.default;\n    }\n  });\n});","define(\"ember-data/transform\", [\"exports\", \"@ember-data/serializer/transform\"], function (_exports, _transform) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"default\", {\n    enumerable: true,\n    get: function () {\n      return _transform.default;\n    }\n  });\n});","define(\"ember-data/version\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n  var _default = \"3.18.0\";\n  _exports.default = _default;\n});","define('ember-inflector/index', ['exports', 'ember-inflector/lib/system', 'ember-inflector/lib/ext/string'], function (exports, _system) {\n  'use strict';\n\n  Object.defineProperty(exports, \"__esModule\", {\n    value: true\n  });\n  exports.defaultRules = exports.singularize = exports.pluralize = undefined;\n\n\n  _system.Inflector.defaultRules = _system.defaultRules;\n\n  Object.defineProperty(Ember, 'Inflector', {\n    get() {\n      Ember.deprecate(`Ember.Inflector is deprecated. Please explicitly: import Inflector from 'ember-inflector';`, false, {\n        id: 'ember-inflector.globals',\n        until: '3.0.0'\n      });\n\n      return _system.Inflector;\n    }\n  }, { configurable: true });\n\n  Object.defineProperty(Ember.String, 'singularize', {\n    get() {\n      Ember.deprecate(`Ember.String.singularize() is deprecated. Please explicitly: import { singularize } from 'ember-inflector';`, false, {\n        id: 'ember-inflector.globals',\n        until: '3.0.0'\n      });\n\n      return _system.singularize;\n    }\n  }, { configurable: true });\n\n  Object.defineProperty(Ember.String, 'pluralize', {\n    get() {\n      Ember.deprecate(`Ember.String.pluralize() is deprecated. Please explicitly: import { pluralize } from 'ember-inflector';`, false, {\n        id: 'ember-inflector.globals',\n        until: '3.0.0'\n      });\n\n      return _system.pluralize;\n    }\n  }, { configurable: true });\n\n  exports.default = _system.Inflector;\n  exports.pluralize = _system.pluralize;\n  exports.singularize = _system.singularize;\n  exports.defaultRules = _system.defaultRules;\n});","define('ember-inflector/lib/ext/string', ['ember-inflector/lib/system/string'], function (_string) {\n  'use strict';\n\n  if (Ember.ENV.EXTEND_PROTOTYPES === true || Ember.ENV.EXTEND_PROTOTYPES.String) {\n    /**\n      See {{#crossLink \"Ember.String/pluralize\"}}{{/crossLink}}\n       @method pluralize\n      @for String\n    */\n    Object.defineProperty(String.prototype, 'pluralize', {\n      get() {\n        Ember.deprecate(`String.prototype.pluralize() is deprecated. Please explicitly: import { pluralize } from 'ember-inflector';`, false, {\n          id: 'ember-inflector.globals',\n          until: '3.0.0'\n        });\n\n        return function () {\n          return (0, _string.pluralize)(this);\n        };\n      }\n    }, { configurable: true });\n\n    /**\n      See {{#crossLink \"Ember.String/singularize\"}}{{/crossLink}}\n       @method singularize\n      @for String\n    */\n    Object.defineProperty(String.prototype, 'singularize', {\n      get() {\n        Ember.deprecate(`String.prototype.singularize() is deprecated. Please explicitly: import { singularize } from 'ember-inflector';`, false, {\n          id: 'ember-inflector.globals',\n          until: '3.0.0'\n        });\n\n        return function () {\n          return (0, _string.singularize)(this);\n        };\n      }\n    }, { configurable: true });\n  }\n});","define('ember-inflector/lib/helpers/pluralize', ['exports', 'ember-inflector', 'ember-inflector/lib/utils/make-helper'], function (exports, _emberInflector, _makeHelper) {\n  'use strict';\n\n  Object.defineProperty(exports, \"__esModule\", {\n    value: true\n  });\n  exports.default = (0, _makeHelper.default)(function (params, hash) {\n    let fullParams = new Array(...params);\n\n    if (fullParams.length === 2) {\n      fullParams.push({ withoutCount: hash[\"without-count\"] });\n    }\n\n    return (0, _emberInflector.pluralize)(...fullParams);\n  });\n});","define('ember-inflector/lib/helpers/singularize', ['exports', 'ember-inflector', 'ember-inflector/lib/utils/make-helper'], function (exports, _emberInflector, _makeHelper) {\n  'use strict';\n\n  Object.defineProperty(exports, \"__esModule\", {\n    value: true\n  });\n  exports.default = (0, _makeHelper.default)(function (params) {\n    return (0, _emberInflector.singularize)(params[0]);\n  });\n});","define(\"ember-inflector/lib/system\", [\"exports\", \"ember-inflector/lib/system/inflector\", \"ember-inflector/lib/system/string\", \"ember-inflector/lib/system/inflections\"], function (exports, _inflector, _string, _inflections) {\n  \"use strict\";\n\n  Object.defineProperty(exports, \"__esModule\", {\n    value: true\n  });\n  exports.defaultRules = exports.pluralize = exports.singularize = exports.Inflector = undefined;\n\n\n  _inflector.default.inflector = new _inflector.default(_inflections.default);\n\n  exports.Inflector = _inflector.default;\n  exports.singularize = _string.singularize;\n  exports.pluralize = _string.pluralize;\n  exports.defaultRules = _inflections.default;\n});","define('ember-inflector/lib/system/inflections', ['exports'], function (exports) {\n  'use strict';\n\n  Object.defineProperty(exports, \"__esModule\", {\n    value: true\n  });\n  exports.default = {\n    plurals: [[/$/, 's'], [/s$/i, 's'], [/^(ax|test)is$/i, '$1es'], [/(octop|vir)us$/i, '$1i'], [/(octop|vir)i$/i, '$1i'], [/(alias|status|bonus)$/i, '$1es'], [/(bu)s$/i, '$1ses'], [/(buffal|tomat)o$/i, '$1oes'], [/([ti])um$/i, '$1a'], [/([ti])a$/i, '$1a'], [/sis$/i, 'ses'], [/(?:([^f])fe|([lr])f)$/i, '$1$2ves'], [/(hive)$/i, '$1s'], [/([^aeiouy]|qu)y$/i, '$1ies'], [/(x|ch|ss|sh)$/i, '$1es'], [/(matr|vert|ind)(?:ix|ex)$/i, '$1ices'], [/^(m|l)ouse$/i, '$1ice'], [/^(m|l)ice$/i, '$1ice'], [/^(ox)$/i, '$1en'], [/^(oxen)$/i, '$1'], [/(quiz)$/i, '$1zes']],\n\n    singular: [[/s$/i, ''], [/(ss)$/i, '$1'], [/(n)ews$/i, '$1ews'], [/([ti])a$/i, '$1um'], [/((a)naly|(b)a|(d)iagno|(p)arenthe|(p)rogno|(s)ynop|(t)he)(sis|ses)$/i, '$1sis'], [/(^analy)(sis|ses)$/i, '$1sis'], [/([^f])ves$/i, '$1fe'], [/(hive)s$/i, '$1'], [/(tive)s$/i, '$1'], [/([lr])ves$/i, '$1f'], [/([^aeiouy]|qu)ies$/i, '$1y'], [/(s)eries$/i, '$1eries'], [/(m)ovies$/i, '$1ovie'], [/(x|ch|ss|sh)es$/i, '$1'], [/^(m|l)ice$/i, '$1ouse'], [/(bus)(es)?$/i, '$1'], [/(o)es$/i, '$1'], [/(shoe)s$/i, '$1'], [/(cris|test)(is|es)$/i, '$1is'], [/^(a)x[ie]s$/i, '$1xis'], [/(octop|vir)(us|i)$/i, '$1us'], [/(alias|status|bonus)(es)?$/i, '$1'], [/^(ox)en/i, '$1'], [/(vert|ind)ices$/i, '$1ex'], [/(matr)ices$/i, '$1ix'], [/(quiz)zes$/i, '$1'], [/(database)s$/i, '$1']],\n\n    irregularPairs: [['person', 'people'], ['man', 'men'], ['child', 'children'], ['sex', 'sexes'], ['move', 'moves'], ['cow', 'kine'], ['zombie', 'zombies']],\n\n    uncountable: ['equipment', 'information', 'rice', 'money', 'species', 'series', 'fish', 'sheep', 'jeans', 'police']\n  };\n});","define('ember-inflector/lib/system/inflector', ['exports'], function (exports) {\n  'use strict';\n\n  Object.defineProperty(exports, \"__esModule\", {\n    value: true\n  });\n\n\n  const BLANK_REGEX = /^\\s*$/;\n  const LAST_WORD_DASHED_REGEX = /([\\w/-]+[_/\\s-])([a-z\\d]+$)/;\n  const LAST_WORD_CAMELIZED_REGEX = /([\\w/\\s-]+)([A-Z][a-z\\d]*$)/;\n  const CAMELIZED_REGEX = /[A-Z][a-z\\d]*$/;\n\n  function loadUncountable(rules, uncountable) {\n    for (let i = 0, length = uncountable.length; i < length; i++) {\n      rules.uncountable[uncountable[i].toLowerCase()] = true;\n    }\n  }\n\n  function loadIrregular(rules, irregularPairs) {\n    let pair;\n\n    for (let i = 0, length = irregularPairs.length; i < length; i++) {\n      pair = irregularPairs[i];\n\n      //pluralizing\n      rules.irregular[pair[0].toLowerCase()] = pair[1];\n      rules.irregular[pair[1].toLowerCase()] = pair[1];\n\n      //singularizing\n      rules.irregularInverse[pair[1].toLowerCase()] = pair[0];\n      rules.irregularInverse[pair[0].toLowerCase()] = pair[0];\n    }\n  }\n\n  /**\n    Inflector.Ember provides a mechanism for supplying inflection rules for your\n    application. Ember includes a default set of inflection rules, and provides an\n    API for providing additional rules.\n  \n    Examples:\n  \n    Creating an inflector with no rules.\n  \n    ```js\n    var inflector = new Ember.Inflector();\n    ```\n  \n    Creating an inflector with the default ember ruleset.\n  \n    ```js\n    var inflector = new Ember.Inflector(Ember.Inflector.defaultRules);\n  \n    inflector.pluralize('cow'); //=> 'kine'\n    inflector.singularize('kine'); //=> 'cow'\n    ```\n  \n    Creating an inflector and adding rules later.\n  \n    ```javascript\n    var inflector = Ember.Inflector.inflector;\n  \n    inflector.pluralize('advice'); // => 'advices'\n    inflector.uncountable('advice');\n    inflector.pluralize('advice'); // => 'advice'\n  \n    inflector.pluralize('formula'); // => 'formulas'\n    inflector.irregular('formula', 'formulae');\n    inflector.pluralize('formula'); // => 'formulae'\n  \n    // you would not need to add these as they are the default rules\n    inflector.plural(/$/, 's');\n    inflector.singular(/s$/i, '');\n    ```\n  \n    Creating an inflector with a nondefault ruleset.\n  \n    ```javascript\n    var rules = {\n      plurals:  [\n        [ /$/, 's' ]\n      ],\n      singular: [\n        [ /\\s$/, '' ]\n      ],\n      irregularPairs: [\n        [ 'cow', 'kine' ]\n      ],\n      uncountable: [ 'fish' ]\n    };\n  \n    var inflector = new Ember.Inflector(rules);\n    ```\n  \n    @class Inflector\n    @namespace Ember\n  */\n  function Inflector(ruleSet) {\n    ruleSet = ruleSet || {};\n    ruleSet.uncountable = ruleSet.uncountable || makeDictionary();\n    ruleSet.irregularPairs = ruleSet.irregularPairs || makeDictionary();\n\n    const rules = this.rules = {\n      plurals: ruleSet.plurals || [],\n      singular: ruleSet.singular || [],\n      irregular: makeDictionary(),\n      irregularInverse: makeDictionary(),\n      uncountable: makeDictionary()\n    };\n\n    loadUncountable(rules, ruleSet.uncountable);\n    loadIrregular(rules, ruleSet.irregularPairs);\n\n    this.enableCache();\n  }\n\n  if (!Object.create && !Object.create(null).hasOwnProperty) {\n    throw new Error(\"This browser does not support Object.create(null), please polyfil with es5-sham: http://git.io/yBU2rg\");\n  }\n\n  function makeDictionary() {\n    var cache = Object.create(null);\n    cache['_dict'] = null;\n    delete cache['_dict'];\n    return cache;\n  }\n\n  Inflector.prototype = {\n    /**\n      @public\n       As inflections can be costly, and commonly the same subset of words are repeatedly\n      inflected an optional cache is provided.\n       @method enableCache\n    */\n    enableCache() {\n      this.purgeCache();\n\n      this.singularize = function (word) {\n        this._cacheUsed = true;\n        return this._sCache[word] || (this._sCache[word] = this._singularize(word));\n      };\n\n      this.pluralize = function (numberOrWord, word, options = {}) {\n        this._cacheUsed = true;\n        var cacheKey = [numberOrWord, word, options.withoutCount];\n        return this._pCache[cacheKey] || (this._pCache[cacheKey] = this._pluralize(numberOrWord, word, options));\n      };\n    },\n\n    /**\n      @public\n       @method purgedCache\n    */\n    purgeCache() {\n      this._cacheUsed = false;\n      this._sCache = makeDictionary();\n      this._pCache = makeDictionary();\n    },\n\n    /**\n      @public\n      disable caching\n       @method disableCache;\n    */\n    disableCache() {\n      this._sCache = null;\n      this._pCache = null;\n      this.singularize = function (word) {\n        return this._singularize(word);\n      };\n\n      this.pluralize = function () {\n        return this._pluralize(...arguments);\n      };\n    },\n\n    /**\n      @method plural\n      @param {RegExp} regex\n      @param {String} string\n    */\n    plural(regex, string) {\n      if (this._cacheUsed) {\n        this.purgeCache();\n      }\n      this.rules.plurals.push([regex, string.toLowerCase()]);\n    },\n\n    /**\n      @method singular\n      @param {RegExp} regex\n      @param {String} string\n    */\n    singular(regex, string) {\n      if (this._cacheUsed) {\n        this.purgeCache();\n      }\n      this.rules.singular.push([regex, string.toLowerCase()]);\n    },\n\n    /**\n      @method uncountable\n      @param {String} regex\n    */\n    uncountable(string) {\n      if (this._cacheUsed) {\n        this.purgeCache();\n      }\n      loadUncountable(this.rules, [string.toLowerCase()]);\n    },\n\n    /**\n      @method irregular\n      @param {String} singular\n      @param {String} plural\n    */\n    irregular(singular, plural) {\n      if (this._cacheUsed) {\n        this.purgeCache();\n      }\n      loadIrregular(this.rules, [[singular, plural]]);\n    },\n\n    /**\n      @method pluralize\n      @param {String} word\n    */\n    pluralize() {\n      return this._pluralize(...arguments);\n    },\n\n    _pluralize(wordOrCount, word, options = {}) {\n      if (word === undefined) {\n        return this.inflect(wordOrCount, this.rules.plurals, this.rules.irregular);\n      }\n\n      if (parseFloat(wordOrCount) !== 1) {\n        word = this.inflect(word, this.rules.plurals, this.rules.irregular);\n      }\n\n      return options.withoutCount ? word : `${wordOrCount} ${word}`;\n    },\n    /**\n      @method singularize\n      @param {String} word\n    */\n    singularize(word) {\n      return this._singularize(word);\n    },\n\n    _singularize(word) {\n      return this.inflect(word, this.rules.singular, this.rules.irregularInverse);\n    },\n\n    /**\n      @protected\n       @method inflect\n      @param {String} word\n      @param {Object} typeRules\n      @param {Object} irregular\n    */\n    inflect(word, typeRules, irregular) {\n      let inflection, substitution, result, lowercase, wordSplit, lastWord, isBlank, isCamelized, rule, isUncountable;\n\n      isBlank = !word || BLANK_REGEX.test(word);\n      isCamelized = CAMELIZED_REGEX.test(word);\n\n      if (isBlank) {\n        return word;\n      }\n\n      lowercase = word.toLowerCase();\n      wordSplit = LAST_WORD_DASHED_REGEX.exec(word) || LAST_WORD_CAMELIZED_REGEX.exec(word);\n\n      if (wordSplit) {\n        lastWord = wordSplit[2].toLowerCase();\n      }\n\n      isUncountable = this.rules.uncountable[lowercase] || this.rules.uncountable[lastWord];\n\n      if (isUncountable) {\n        return word;\n      }\n\n      for (rule in irregular) {\n        if (lowercase.match(rule + \"$\")) {\n          substitution = irregular[rule];\n\n          if (isCamelized && irregular[lastWord]) {\n            substitution = Ember.String.capitalize(substitution);\n            rule = Ember.String.capitalize(rule);\n          }\n\n          return word.replace(new RegExp(rule, 'i'), substitution);\n        }\n      }\n\n      for (var i = typeRules.length, min = 0; i > min; i--) {\n        inflection = typeRules[i - 1];\n        rule = inflection[0];\n\n        if (rule.test(word)) {\n          break;\n        }\n      }\n\n      inflection = inflection || [];\n\n      rule = inflection[0];\n      substitution = inflection[1];\n\n      result = word.replace(rule, substitution);\n\n      return result;\n    }\n  };\n\n  exports.default = Inflector;\n});","define('ember-inflector/lib/system/string', ['exports', 'ember-inflector/lib/system/inflector'], function (exports, _inflector) {\n  'use strict';\n\n  Object.defineProperty(exports, \"__esModule\", {\n    value: true\n  });\n  exports.singularize = exports.pluralize = undefined;\n\n\n  function pluralize() {\n    return _inflector.default.inflector.pluralize(...arguments);\n  }\n\n  function singularize(word) {\n    return _inflector.default.inflector.singularize(word);\n  }\n\n  exports.pluralize = pluralize;\n  exports.singularize = singularize;\n});","define('ember-inflector/lib/utils/make-helper', ['exports'], function (exports) {\n  'use strict';\n\n  Object.defineProperty(exports, \"__esModule\", {\n    value: true\n  });\n  exports.default = makeHelper;\n  function makeHelper(helperFunction) {\n    if (Ember.Helper) {\n      return Ember.Helper.helper(helperFunction);\n    }\n    if (Ember.HTMLBars) {\n      return Ember.HTMLBars.makeBoundHelper(helperFunction);\n    }\n    return Ember.Handlebars.makeBoundHelper(helperFunction);\n  }\n});","define(\"ember-load-initializers/index\", [\"exports\", \"require\"], function (_exports, _require) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = loadInitializers;\n\n  function resolveInitializer(moduleName) {\n    var module = (0, _require.default)(moduleName, null, null, true);\n\n    if (!module) {\n      throw new Error(moduleName + ' must export an initializer.');\n    }\n\n    var initializer = module['default'];\n\n    if (!initializer) {\n      throw new Error(moduleName + ' must have a default export');\n    }\n\n    if (!initializer.name) {\n      initializer.name = moduleName.slice(moduleName.lastIndexOf('/') + 1);\n    }\n\n    return initializer;\n  }\n\n  function registerInitializers(app, moduleNames) {\n    for (var i = 0; i < moduleNames.length; i++) {\n      app.initializer(resolveInitializer(moduleNames[i]));\n    }\n  }\n\n  function registerInstanceInitializers(app, moduleNames) {\n    for (var i = 0; i < moduleNames.length; i++) {\n      app.instanceInitializer(resolveInitializer(moduleNames[i]));\n    }\n  }\n\n  function _endsWith(str, suffix) {\n    return str.indexOf(suffix, str.length - suffix.length) !== -1;\n  }\n  /**\n   * Configure your application as it boots\n   */\n\n\n  function loadInitializers(app, prefix) {\n    var initializerPrefix = prefix + '/initializers/';\n    var instanceInitializerPrefix = prefix + '/instance-initializers/';\n    var initializers = [];\n    var instanceInitializers = []; // this is 2 pass because generally the first pass is the problem\n    // and is reduced, and resolveInitializer has potential to deopt\n\n    var moduleNames = Object.keys(requirejs._eak_seen);\n\n    for (var i = 0; i < moduleNames.length; i++) {\n      var moduleName = moduleNames[i];\n\n      if (moduleName.lastIndexOf(initializerPrefix, 0) === 0) {\n        if (!_endsWith(moduleName, '-test')) {\n          initializers.push(moduleName);\n        }\n      } else if (moduleName.lastIndexOf(instanceInitializerPrefix, 0) === 0) {\n        if (!_endsWith(moduleName, '-test')) {\n          instanceInitializers.push(moduleName);\n        }\n      }\n    }\n\n    registerInitializers(app, initializers);\n    registerInstanceInitializers(app, instanceInitializers);\n  }\n});","/*\n * This is a stub file, it must be on disk b/c babel-plugin-debug-macros\n * does not strip the module require when the transpiled variable usage is\n * stripped.\n */\ndefine(\"ember-resolver/features\", [], function () {\n  \"use strict\";\n});","define(\"ember-resolver/index\", [\"exports\", \"ember-resolver/resolvers/classic\"], function (_exports, _classic) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"default\", {\n    enumerable: true,\n    get: function () {\n      return _classic.default;\n    }\n  });\n});","define(\"ember-resolver/resolver\", [\"exports\", \"ember-resolver/resolvers/classic\"], function (_exports, _classic) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"default\", {\n    enumerable: true,\n    get: function () {\n      return _classic.default;\n    }\n  });\n});","define(\"ember-resolver/resolvers/classic/container-debug-adapter\", [\"exports\", \"ember-resolver/resolvers/classic/index\"], function (_exports, _index) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  function getPod(type, key, prefix) {\n    let match = key.match(new RegExp('^/?' + prefix + '/(.+)/' + type + '$'));\n\n    if (match !== null) {\n      return match[1];\n    }\n  }\n  /*\n   * This module defines a subclass of Ember.ContainerDebugAdapter that adds\n   * support for resolving from modules.\n   *\n   */\n\n\n  var _default = Ember.ContainerDebugAdapter.extend({\n    _moduleRegistry: null,\n\n    init() {\n      this._super(...arguments);\n\n      if (!this._moduleRegistry) {\n        this._moduleRegistry = new _index.ModuleRegistry();\n      }\n    },\n\n    /**\n        The container of the application being debugged.\n        This property will be injected\n        on creation.\n         @property container\n        @default null\n        */\n\n    /**\n        The resolver instance of the application\n        being debugged. This property will be injected\n        on creation.\n         @property resolver\n        @default null\n        */\n\n    /**\n        Returns true if it is possible to catalog a list of available\n        classes in the resolver for a given type.\n         @method canCatalogEntriesByType\n        @param {string} type The type. e.g. \"model\", \"controller\", \"route\"\n        @return {boolean} whether a list is available for this type.\n        */\n    canCatalogEntriesByType(type) {\n      if (type === 'model') {\n        return true;\n      }\n\n      return this._super(...arguments);\n    },\n\n    /**\n        Returns the available classes a given type.\n         @method catalogEntriesByType\n        @param {string} type The type. e.g. \"model\", \"controller\", \"route\"\n        @return {Array} An array of classes.\n        */\n    catalogEntriesByType(type) {\n      let moduleNames = this._moduleRegistry.moduleNames();\n\n      let types = Ember.A();\n      let prefix = this.namespace.modulePrefix;\n\n      for (let i = 0, l = moduleNames.length; i < l; i++) {\n        let key = moduleNames[i];\n\n        if (key.indexOf(type) !== -1) {\n          // Check if it's a pod module\n          let name = getPod(type, key, this.namespace.podModulePrefix || prefix);\n\n          if (!name) {\n            // Not pod\n            name = key.split(type + 's/').pop(); // Support for different prefix (such as ember-cli addons).\n            // Uncomment the code below when\n            // https://github.com/ember-cli/ember-resolver/pull/80 is merged.\n            //let match = key.match('^/?(.+)/' + type);\n            //if (match && match[1] !== prefix) {\n            // Different prefix such as an addon\n            //name = match[1] + '@' + name;\n            //}\n          }\n\n          types.addObject(name);\n        }\n      }\n\n      return types;\n    }\n\n  });\n\n  _exports.default = _default;\n});","define(\"ember-resolver/resolvers/classic/index\", [\"exports\", \"ember-resolver/utils/class-factory\"], function (_exports, _classFactory) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = _exports.ModuleRegistry = void 0;\n\n  if (typeof requirejs.entries === 'undefined') {\n    requirejs.entries = requirejs._eak_seen;\n  }\n\n  class ModuleRegistry {\n    constructor(entries) {\n      this._entries = entries || requirejs.entries;\n    }\n\n    moduleNames() {\n      return Object.keys(this._entries);\n    }\n\n    has(moduleName) {\n      return moduleName in this._entries;\n    }\n\n    get(moduleName) {\n      return require(moduleName);\n    }\n\n  }\n  /**\n   * This module defines a subclass of Ember.DefaultResolver that adds two\n   * important features:\n   *\n   *  1) The resolver makes the container aware of es6 modules via the AMD\n   *     output. The loader's _moduleEntries is consulted so that classes can be\n   *     resolved directly via the module loader, without needing a manual\n   *     `import`.\n   *  2) is able to provide injections to classes that implement `extend`\n   *     (as is typical with Ember).\n   */\n\n\n  _exports.ModuleRegistry = ModuleRegistry;\n\n  function parseName(fullName) {\n    if (fullName.parsedName === true) {\n      return fullName;\n    }\n\n    let prefix, type, name;\n    let fullNameParts = fullName.split('@');\n\n    if (fullNameParts.length === 3) {\n      if (fullNameParts[0].length === 0) {\n        // leading scoped namespace: `@scope/pkg@type:name`\n        prefix = `@${fullNameParts[1]}`;\n        let prefixParts = fullNameParts[2].split(':');\n        type = prefixParts[0];\n        name = prefixParts[1];\n      } else {\n        // interweaved scoped namespace: `type:@scope/pkg@name`\n        prefix = `@${fullNameParts[1]}`;\n        type = fullNameParts[0].slice(0, -1);\n        name = fullNameParts[2];\n      }\n\n      if (type === 'template:components') {\n        name = `components/${name}`;\n        type = 'template';\n      }\n    } else if (fullNameParts.length === 2) {\n      let prefixParts = fullNameParts[0].split(':');\n\n      if (prefixParts.length === 2) {\n        if (prefixParts[1].length === 0) {\n          type = prefixParts[0];\n          name = `@${fullNameParts[1]}`;\n        } else {\n          prefix = prefixParts[1];\n          type = prefixParts[0];\n          name = fullNameParts[1];\n        }\n      } else {\n        let nameParts = fullNameParts[1].split(':');\n        prefix = fullNameParts[0];\n        type = nameParts[0];\n        name = nameParts[1];\n      }\n\n      if (type === 'template' && prefix.lastIndexOf('components/', 0) === 0) {\n        name = `components/${name}`;\n        prefix = prefix.slice(11);\n      }\n    } else {\n      fullNameParts = fullName.split(':');\n      type = fullNameParts[0];\n      name = fullNameParts[1];\n    }\n\n    let fullNameWithoutType = name;\n    let namespace = Ember.get(this, 'namespace');\n    let root = namespace;\n    return {\n      parsedName: true,\n      fullName: fullName,\n      prefix: prefix || this.prefix({\n        type: type\n      }),\n      type: type,\n      fullNameWithoutType: fullNameWithoutType,\n      name: name,\n      root: root,\n      resolveMethodName: \"resolve\" + Ember.String.classify(type)\n    };\n  }\n\n  function resolveOther(parsedName) {\n    (true && !(this.namespace.modulePrefix) && Ember.assert('`modulePrefix` must be defined', this.namespace.modulePrefix));\n    let normalizedModuleName = this.findModuleName(parsedName);\n\n    if (normalizedModuleName) {\n      let defaultExport = this._extractDefaultExport(normalizedModuleName, parsedName);\n\n      if (defaultExport === undefined) {\n        throw new Error(` Expected to find: '${parsedName.fullName}' within '${normalizedModuleName}' but got 'undefined'. Did you forget to 'export default' within '${normalizedModuleName}'?`);\n      }\n\n      if (this.shouldWrapInClassFactory(defaultExport, parsedName)) {\n        defaultExport = (0, _classFactory.default)(defaultExport);\n      }\n\n      return defaultExport;\n    }\n  }\n\n  const Resolver = Ember.Object.extend({\n    resolveOther,\n    parseName,\n    pluralizedTypes: null,\n    moduleRegistry: null,\n\n    makeToString(factory, fullName) {\n      return '' + this.namespace.modulePrefix + '@' + fullName + ':';\n    },\n\n    shouldWrapInClassFactory()\n    /* module, parsedName */\n    {\n      return false;\n    },\n\n    init() {\n      this._super();\n\n      this.moduleBasedResolver = true;\n\n      if (!this._moduleRegistry) {\n        this._moduleRegistry = new ModuleRegistry();\n      }\n\n      this._normalizeCache = Object.create(null);\n      this.pluralizedTypes = this.pluralizedTypes || Object.create(null);\n\n      if (!this.pluralizedTypes.config) {\n        this.pluralizedTypes.config = 'config';\n      }\n\n      this._deprecatedPodModulePrefix = false;\n    },\n\n    normalize(fullName) {\n      return this._normalizeCache[fullName] || (this._normalizeCache[fullName] = this._normalize(fullName));\n    },\n\n    resolve(fullName) {\n      let parsedName = this.parseName(fullName);\n      let resolveMethodName = parsedName.resolveMethodName;\n      let resolved;\n\n      if (typeof this[resolveMethodName] === 'function') {\n        resolved = this[resolveMethodName](parsedName);\n      }\n\n      if (resolved == null) {\n        resolved = this.resolveOther(parsedName);\n      }\n\n      return resolved;\n    },\n\n    _normalize(fullName) {\n      // A) Convert underscores to dashes\n      // B) Convert camelCase to dash-case, except for components (their\n      //    templates) and helpers where we want to avoid shadowing camelCase\n      //    expressions\n      // C) replace `.` with `/` in order to make nested controllers work in the following cases\n      //      1. `needs: ['posts/post']`\n      //      2. `{{render \"posts/post\"}}`\n      //      3. `this.render('posts/post')` from Route\n      let split = fullName.split(':');\n\n      if (split.length > 1) {\n        let type = split[0];\n\n        if (type === 'component' || type === 'helper' || type === 'modifier' || type === 'template' && split[1].indexOf('components/') === 0) {\n          return type + ':' + split[1].replace(/_/g, '-');\n        } else {\n          return type + ':' + Ember.String.dasherize(split[1].replace(/\\./g, '/'));\n        }\n      } else {\n        return fullName;\n      }\n    },\n\n    pluralize(type) {\n      return this.pluralizedTypes[type] || (this.pluralizedTypes[type] = type + 's');\n    },\n\n    podBasedLookupWithPrefix(podPrefix, parsedName) {\n      let fullNameWithoutType = parsedName.fullNameWithoutType;\n\n      if (parsedName.type === 'template') {\n        fullNameWithoutType = fullNameWithoutType.replace(/^components\\//, '');\n      }\n\n      return podPrefix + '/' + fullNameWithoutType + '/' + parsedName.type;\n    },\n\n    podBasedModuleName(parsedName) {\n      let podPrefix = this.namespace.podModulePrefix || this.namespace.modulePrefix;\n      return this.podBasedLookupWithPrefix(podPrefix, parsedName);\n    },\n\n    podBasedComponentsInSubdir(parsedName) {\n      let podPrefix = this.namespace.podModulePrefix || this.namespace.modulePrefix;\n      podPrefix = podPrefix + '/components';\n\n      if (parsedName.type === 'component' || /^components/.test(parsedName.fullNameWithoutType)) {\n        return this.podBasedLookupWithPrefix(podPrefix, parsedName);\n      }\n    },\n\n    resolveEngine(parsedName) {\n      let engineName = parsedName.fullNameWithoutType;\n      let engineModule = engineName + '/engine';\n\n      if (this._moduleRegistry.has(engineModule)) {\n        return this._extractDefaultExport(engineModule);\n      }\n    },\n\n    resolveRouteMap(parsedName) {\n      let engineName = parsedName.fullNameWithoutType;\n      let engineRoutesModule = engineName + '/routes';\n\n      if (this._moduleRegistry.has(engineRoutesModule)) {\n        let routeMap = this._extractDefaultExport(engineRoutesModule);\n\n        (true && !(routeMap.isRouteMap) && Ember.assert(`The route map for ${engineName} should be wrapped by 'buildRoutes' before exporting.`, routeMap.isRouteMap));\n        return routeMap;\n      }\n    },\n\n    resolveTemplate(parsedName) {\n      let resolved = this.resolveOther(parsedName);\n\n      if (resolved == null) {\n        resolved = Ember.TEMPLATES[parsedName.fullNameWithoutType];\n      }\n\n      return resolved;\n    },\n\n    mainModuleName(parsedName) {\n      if (parsedName.fullNameWithoutType === 'main') {\n        // if router:main or adapter:main look for a module with just the type first\n        return parsedName.prefix + '/' + parsedName.type;\n      }\n    },\n\n    defaultModuleName(parsedName) {\n      return parsedName.prefix + '/' + this.pluralize(parsedName.type) + '/' + parsedName.fullNameWithoutType;\n    },\n\n    nestedColocationComponentModuleName(parsedName) {\n      if (parsedName.type === 'component') {\n        return parsedName.prefix + '/' + this.pluralize(parsedName.type) + '/' + parsedName.fullNameWithoutType + '/index';\n      }\n    },\n\n    prefix(parsedName) {\n      let tmpPrefix = this.namespace.modulePrefix;\n\n      if (this.namespace[parsedName.type + 'Prefix']) {\n        tmpPrefix = this.namespace[parsedName.type + 'Prefix'];\n      }\n\n      return tmpPrefix;\n    },\n\n    /**\n      A listing of functions to test for moduleName's based on the provided\n     `parsedName`. This allows easy customization of additional module based\n     lookup patterns.\n      @property moduleNameLookupPatterns\n     @returns {Ember.Array}\n     */\n    moduleNameLookupPatterns: Ember.computed(function () {\n      return [this.podBasedModuleName, this.podBasedComponentsInSubdir, this.mainModuleName, this.defaultModuleName, this.nestedColocationComponentModuleName];\n    }).readOnly(),\n\n    findModuleName(parsedName, loggingDisabled) {\n      let moduleNameLookupPatterns = this.get('moduleNameLookupPatterns');\n      let moduleName;\n\n      for (let index = 0, length = moduleNameLookupPatterns.length; index < length; index++) {\n        let item = moduleNameLookupPatterns[index];\n        let tmpModuleName = item.call(this, parsedName); // allow treat all dashed and all underscored as the same thing\n        // supports components with dashes and other stuff with underscores.\n\n        if (tmpModuleName) {\n          tmpModuleName = this.chooseModuleName(tmpModuleName, parsedName);\n        }\n\n        if (tmpModuleName && this._moduleRegistry.has(tmpModuleName)) {\n          moduleName = tmpModuleName;\n        }\n\n        if (!loggingDisabled) {\n          this._logLookup(moduleName, parsedName, tmpModuleName);\n        }\n\n        if (moduleName) {\n          return moduleName;\n        }\n      }\n    },\n\n    chooseModuleName(moduleName, parsedName) {\n      let underscoredModuleName = Ember.String.underscore(moduleName);\n\n      if (moduleName !== underscoredModuleName && this._moduleRegistry.has(moduleName) && this._moduleRegistry.has(underscoredModuleName)) {\n        throw new TypeError(`Ambiguous module names: '${moduleName}' and '${underscoredModuleName}'`);\n      }\n\n      if (this._moduleRegistry.has(moduleName)) {\n        return moduleName;\n      } else if (this._moduleRegistry.has(underscoredModuleName)) {\n        return underscoredModuleName;\n      } // workaround for dasherized partials:\n      // something/something/-something => something/something/_something\n\n\n      let partializedModuleName = moduleName.replace(/\\/-([^/]*)$/, '/_$1');\n\n      if (this._moduleRegistry.has(partializedModuleName)) {\n        (true && !(false) && Ember.deprecate('Modules should not contain underscores. ' + 'Attempted to lookup \"' + moduleName + '\" which ' + 'was not found. Please rename \"' + partializedModuleName + '\" ' + 'to \"' + moduleName + '\" instead.', false, {\n          id: 'ember-resolver.underscored-modules',\n          until: '3.0.0'\n        }));\n        return partializedModuleName;\n      }\n\n      if (true\n      /* DEBUG */\n      ) {\n        let isCamelCaseHelper = parsedName.type === 'helper' && /[a-z]+[A-Z]+/.test(moduleName);\n\n        if (isCamelCaseHelper) {\n          this._camelCaseHelperWarnedNames = this._camelCaseHelperWarnedNames || [];\n          let alreadyWarned = this._camelCaseHelperWarnedNames.indexOf(parsedName.fullName) > -1;\n\n          if (!alreadyWarned && this._moduleRegistry.has(Ember.String.dasherize(moduleName))) {\n            this._camelCaseHelperWarnedNames.push(parsedName.fullName);\n\n            (true && Ember.warn('Attempted to lookup \"' + parsedName.fullName + '\" which ' + 'was not found. In previous versions of ember-resolver, a bug would have ' + 'caused the module at \"' + Ember.String.dasherize(moduleName) + '\" to be ' + 'returned for this camel case helper name. This has been fixed. ' + 'Use the dasherized name to resolve the module that would have been ' + 'returned in previous versions.', false, {\n              id: 'ember-resolver.camelcase-helper-names',\n              until: '3.0.0'\n            }));\n          }\n        }\n      }\n    },\n\n    // used by Ember.DefaultResolver.prototype._logLookup\n    lookupDescription(fullName) {\n      let parsedName = this.parseName(fullName);\n      let moduleName = this.findModuleName(parsedName, true);\n      return moduleName;\n    },\n\n    // only needed until 1.6.0-beta.2 can be required\n    _logLookup(found, parsedName, description) {\n      if (!Ember.ENV.LOG_MODULE_RESOLVER && !parsedName.root.LOG_RESOLVER) {\n        return;\n      }\n\n      let padding;\n      let symbol = found ? '[✓]' : '[ ]';\n\n      if (parsedName.fullName.length > 60) {\n        padding = '.';\n      } else {\n        padding = new Array(60 - parsedName.fullName.length).join('.');\n      }\n\n      if (!description) {\n        description = this.lookupDescription(parsedName);\n      }\n      /* eslint-disable no-console */\n\n\n      if (console && console.info) {\n        console.info(symbol, parsedName.fullName, padding, description);\n      }\n    },\n\n    knownForType(type) {\n      let moduleKeys = this._moduleRegistry.moduleNames();\n\n      let items = Object.create(null);\n\n      for (let index = 0, length = moduleKeys.length; index < length; index++) {\n        let moduleName = moduleKeys[index];\n        let fullname = this.translateToContainerFullname(type, moduleName);\n\n        if (fullname) {\n          items[fullname] = true;\n        }\n      }\n\n      return items;\n    },\n\n    translateToContainerFullname(type, moduleName) {\n      let prefix = this.prefix({\n        type\n      }); // Note: using string manipulation here rather than regexes for better performance.\n      // pod modules\n      // '^' + prefix + '/(.+)/' + type + '$'\n\n      let podPrefix = prefix + '/';\n      let podSuffix = '/' + type;\n      let start = moduleName.indexOf(podPrefix);\n      let end = moduleName.indexOf(podSuffix);\n\n      if (start === 0 && end === moduleName.length - podSuffix.length && moduleName.length > podPrefix.length + podSuffix.length) {\n        return type + ':' + moduleName.slice(start + podPrefix.length, end);\n      } // non-pod modules\n      // '^' + prefix + '/' + pluralizedType + '/(.+)$'\n\n\n      let pluralizedType = this.pluralize(type);\n      let nonPodPrefix = prefix + '/' + pluralizedType + '/';\n\n      if (moduleName.indexOf(nonPodPrefix) === 0 && moduleName.length > nonPodPrefix.length) {\n        return type + ':' + moduleName.slice(nonPodPrefix.length);\n      }\n    },\n\n    _extractDefaultExport(normalizedModuleName) {\n      let module = require(normalizedModuleName, null, null, true\n      /* force sync */\n      );\n\n      if (module && module['default']) {\n        module = module['default'];\n      }\n\n      return module;\n    }\n\n  });\n  Resolver.reopenClass({\n    moduleBasedResolver: true\n  });\n  var _default = Resolver;\n  _exports.default = _default;\n});","define(\"ember-resolver/utils/class-factory\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = classFactory;\n\n  function classFactory(klass) {\n    return {\n      create(injections) {\n        if (typeof klass.extend === 'function') {\n          return klass.extend(injections);\n        } else {\n          return klass;\n        }\n      }\n\n    };\n  }\n});","define(\"ember-test-waiters/build-waiter\", [\"exports\", \"ember-test-waiters\", \"ember-test-waiters/noop-test-waiter\"], function (_exports, _emberTestWaiters, _noopTestWaiter) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = buildWaiter;\n\n  /**\n   * Builds and returns a test waiter. The type of the\n   * returned waiter is dependent on whether the app or\n   * addon is in `DEBUG` mode or not.\n   *\n   * @param name {string} The name of the test waiter\n   * @returns {ITestWaiter}\n   *\n   * @example\n   *\n   * import Component from '@ember/component';\n   * import { buildWaiter } from 'ember-test-waiters';\n   *\n   * if (DEBUG) {\n   *   let waiter = buildWaiter('friend-waiter');\n   * }\n   *\n   * export default class Friendz extends Component {\n   *   didInsertElement() {\n   *     let token = waiter.beginAsync(this);\n   *\n   *     someAsyncWork().then(() => {\n   *       waiter.endAsync(token);\n   *     });\n   *   }\n   * }\n   */\n  function buildWaiter(name) {\n    if (true\n    /* DEBUG */\n    ) {\n      return new _emberTestWaiters.TestWaiter(name);\n    }\n\n    return new _noopTestWaiter.default(name);\n  }\n});","define(\"ember-test-waiters/index\", [\"exports\", \"ember-test-waiters/waiter-manager\", \"ember-test-waiters/test-waiter\", \"ember-test-waiters/build-waiter\", \"ember-test-waiters/wait-for-promise\"], function (_exports, _waiterManager, _testWaiter, _buildWaiter, _waitForPromise) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  Object.defineProperty(_exports, \"register\", {\n    enumerable: true,\n    get: function () {\n      return _waiterManager.register;\n    }\n  });\n  Object.defineProperty(_exports, \"unregister\", {\n    enumerable: true,\n    get: function () {\n      return _waiterManager.unregister;\n    }\n  });\n  Object.defineProperty(_exports, \"getWaiters\", {\n    enumerable: true,\n    get: function () {\n      return _waiterManager.getWaiters;\n    }\n  });\n  Object.defineProperty(_exports, \"_reset\", {\n    enumerable: true,\n    get: function () {\n      return _waiterManager._reset;\n    }\n  });\n  Object.defineProperty(_exports, \"getPendingWaiterState\", {\n    enumerable: true,\n    get: function () {\n      return _waiterManager.getPendingWaiterState;\n    }\n  });\n  Object.defineProperty(_exports, \"hasPendingWaiters\", {\n    enumerable: true,\n    get: function () {\n      return _waiterManager.hasPendingWaiters;\n    }\n  });\n  Object.defineProperty(_exports, \"TestWaiter\", {\n    enumerable: true,\n    get: function () {\n      return _testWaiter.default;\n    }\n  });\n  Object.defineProperty(_exports, \"buildWaiter\", {\n    enumerable: true,\n    get: function () {\n      return _buildWaiter.default;\n    }\n  });\n  Object.defineProperty(_exports, \"waitForPromise\", {\n    enumerable: true,\n    get: function () {\n      return _waitForPromise.default;\n    }\n  });\n});","define(\"ember-test-waiters/noop-test-waiter\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n   * A class providing a production, noop replacement for the {TestWaiter<T>} class.\n   *\n   * @public\n   * @class TestWaiter<T>\n   */\n  class NoopTestWaiter {\n    constructor(name) {\n      this.name = name;\n    }\n\n    beginAsync() {\n      return this;\n    }\n\n    endAsync() {}\n\n    waitUntil() {\n      return true;\n    }\n\n    debugInfo() {\n      return [];\n    }\n\n    reset() {}\n\n  }\n\n  _exports.default = NoopTestWaiter;\n});","define(\"ember-test-waiters/test-waiter\", [\"exports\", \"ember-test-waiters/waiter-manager\"], function (_exports, _waiterManager) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n  let token = 0;\n\n  function getNextToken() {\n    return token++;\n  }\n  /**\n   * A class providing creation, registration and async waiting functionality.\n   *\n   * @public\n   * @class TestWaiter<T>\n   */\n\n\n  class TestWaiter {\n    /**\n     * @public\n     * @constructor\n     * @param name {WaiterName} the name of the test waiter\n     */\n    constructor(name, nextToken) {\n      this.isRegistered = false;\n      this.items = new Map();\n      this.name = name; // @ts-ignore\n\n      this.nextToken = nextToken || getNextToken;\n    }\n    /**\n     * Will register the waiter, allowing it to be opted in to pausing async\n     * operations until they're completed within your tests. You should invoke\n     * it after instantiating your `TestWaiter` instance.\n     *\n     * **Note**, if you forget to register your waiter, it will be registered\n     * for you on the first invocation of `beginAsync`.\n     *\n     * @private\n     * @method register\n     */\n\n\n    register() {\n      if (!this.isRegistered) {\n        (0, _waiterManager.register)(this);\n        this.isRegistered = true;\n      }\n    }\n    /**\n     * Should be used to signal the beginning of an async operation that\n     * is to be waited for. Invocation of this method should be paired with a subsequent\n     * `endAsync` call to indicate to the waiter system that the async operation is completed.\n     *\n     * @public\n     * @method beginAsync\n     * @param item {T} The item to register for waiting\n     * @param label {string} An optional label to identify the item\n     */\n\n\n    beginAsync(token = this.nextToken(), label) {\n      this.register();\n\n      if (this.items.has(token)) {\n        throw new Error(`beginAsync called for ${token} but it is already pending.`);\n      }\n\n      let error = new Error();\n      this.items.set(token, {\n        get stack() {\n          return error.stack;\n        },\n\n        label\n      });\n      return token;\n    }\n    /**\n     * Should be used to signal the end of an async operation. Invocation of this\n     * method should be paired with a preceeding `beginAsync` call, which would indicate the\n     * beginning of an async operation.\n     *\n     * @public\n     * @method endAsync\n     * @param item {T} The item to that was registered for waiting\n     */\n\n\n    endAsync(token) {\n      if (!this.items.has(token)) {\n        throw new Error(`endAsync called for ${token} but it is not currently pending.`);\n      }\n\n      this.items.delete(token);\n    }\n    /**\n     * Used to determine if the waiter system should still wait for async\n     * operations to complete.\n     *\n     * @public\n     * @method waitUntil\n     * @returns {boolean}\n     */\n\n\n    waitUntil() {\n      return this.items.size === 0;\n    }\n    /**\n     * Returns the `debugInfo` for each item tracking async operations in this waiter.\n     *\n     * @public\n     * @method debugInfo\n     * @returns {ITestWaiterDebugInfo}\n     */\n\n\n    debugInfo() {\n      return [...this.items.values()];\n    }\n    /**\n     * Resets the waiter state, clearing items tracking async operations in this waiter.\n     *\n     * @public\n     * @method reset\n     */\n\n\n    reset() {\n      this.items.clear();\n    }\n\n  }\n\n  _exports.default = TestWaiter;\n});","define(\"ember-test-waiters/types/index\", [], function () {\n  \"use strict\";\n});","define(\"ember-test-waiters/wait-for-promise\", [\"exports\", \"ember-test-waiters/test-waiter\"], function (_exports, _testWaiter) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = waitForPromise;\n  const PROMISE_WAITER = new _testWaiter.default('promise-waiter');\n  /**\n   * A convenient utility function to simplify waiting for a promise.\n   *\n   * @public\n   * @param promise {Promise<T>} The promise to track async operations for\n   * @param label {string} An optional string to identify the promise\n   *\n   * @example\n   *\n   * import Component from '@ember/component';\n   * import { waitForPromise } from 'ember-test-waiters';\n   *\n   * export default class Friendz extends Component {\n   *   didInsertElement() {\n   *     waitForPromise(new Promise(resolve => {\n   *       doSomeWork();\n   *       resolve();\n   *     }));\n   *   }\n   * }\n   */\n\n  function waitForPromise(promise, label) {\n    let result = promise;\n\n    if (true\n    /* DEBUG */\n    ) {\n      PROMISE_WAITER.beginAsync(promise, label);\n      result = promise.then(value => {\n        PROMISE_WAITER.endAsync(promise);\n        return value;\n      }, error => {\n        PROMISE_WAITER.endAsync(promise);\n        throw error;\n      });\n    }\n\n    return result;\n  }\n});","define(\"ember-test-waiters/waiter-manager\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.register = register;\n  _exports.unregister = unregister;\n  _exports.getWaiters = getWaiters;\n  _exports._reset = _reset;\n  _exports.getPendingWaiterState = getPendingWaiterState;\n  _exports.hasPendingWaiters = hasPendingWaiters;\n  const WAITERS = new Map();\n  /**\n   * Backwards compatibility with legacy waiters system.\n   *\n   * We want to always register a waiter using the legacy waiter system, as right\n   * now if consumers are not on the right version of @ember/test-helpers, using\n   * this addon will result in none of these waiters waiting.\n   */\n  // eslint-disable-next-line ember/new-module-imports\n\n  if (Ember.Test) {\n    Ember.Test.registerWaiter(() => !hasPendingWaiters());\n  }\n  /**\n   * Registers a waiter.\n   *\n   * @public\n   * @param waiter {IWaiter} A test waiter instance\n   */\n\n\n  function register(waiter) {\n    WAITERS.set(waiter.name, waiter);\n  }\n  /**\n   * Unregisters a waiter.\n   *\n   * @public\n   * @param waiter {IWaiter} A test waiter instance\n   */\n\n\n  function unregister(waiter) {\n    WAITERS.delete(waiter.name);\n  }\n  /**\n   * Gets an array of all waiters current registered.\n   *\n   * @public\n   * @returns {IWaiter[]}\n   */\n\n\n  function getWaiters() {\n    return [...WAITERS.values()];\n  }\n  /**\n   * Clears all waiters.\n   *\n   * @public\n   */\n\n\n  function _reset() {\n    WAITERS.clear();\n  }\n  /**\n   * Gets the current state of all waiters. Any waiters whose\n   * `waitUntil` method returns false will be considered `pending`.\n   *\n   * @returns {IPendingWaiterState} An object containing a count of all waiters\n   * pending and a `waiters` object containing the name of all pending waiters\n   * and their debug info.\n   */\n\n\n  function getPendingWaiterState() {\n    let result = {\n      pending: 0,\n      waiters: {}\n    };\n    WAITERS.forEach(waiter => {\n      if (!waiter.waitUntil()) {\n        result.pending++;\n        let debugInfo = waiter.debugInfo();\n        result.waiters[waiter.name] = debugInfo || true;\n      }\n    });\n    return result;\n  }\n  /**\n   * Determines if there are any pending waiters.\n   *\n   * @returns {boolean} `true` if there are pending waiters, otherwise `false`.\n   */\n\n\n  function hasPendingWaiters() {\n    let state = getPendingWaiterState();\n    return state.pending > 0;\n  }\n});","define(\"ember-welcome-page/components/welcome-page\", [\"exports\", \"ember-welcome-page/templates/components/welcome-page\"], function (_exports, _welcomePage) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  var _default = Ember.Component.extend({\n    layout: _welcomePage.default,\n    emberVersion: Ember.computed(function () {\n      let [major, minor] = Ember.VERSION.split(\".\");\n      return `${major}.${minor}.0`;\n    }),\n    canAngleBracket: Ember.computed(function () {\n      return true;\n    }),\n    isModuleUnification: Ember.computed(function () {\n      const config = Ember.getOwner(this).resolveRegistration('config:environment');\n      return config && config.isModuleUnification;\n    })\n  });\n\n  _exports.default = _default;\n});","define(\"ember-welcome-page/templates/components/welcome-page\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  var _default = Ember.HTMLBars.template({\n    \"id\": \"BSRfiAnZ\",\n    \"block\": \"{\\\"symbols\\\":[],\\\"statements\\\":[[10,\\\"div\\\"],[14,1,\\\"ember-welcome-page-id-selector\\\"],[15,\\\"data-ember-version\\\",[31,[[34,0]]]],[12],[2,\\\"\\\\n  \\\"],[10,\\\"div\\\"],[14,0,\\\"columns\\\"],[12],[2,\\\"\\\\n    \\\"],[10,\\\"div\\\"],[14,0,\\\"tomster\\\"],[12],[2,\\\"\\\\n      \\\"],[10,\\\"img\\\"],[14,\\\"src\\\",\\\"ember-welcome-page/images/construction.png\\\"],[14,\\\"alt\\\",\\\"Under construction\\\"],[12],[13],[2,\\\"\\\\n    \\\"],[13],[2,\\\"\\\\n    \\\"],[10,\\\"div\\\"],[14,0,\\\"welcome\\\"],[12],[2,\\\"\\\\n      \\\"],[10,\\\"h2\\\"],[14,1,\\\"title\\\"],[12],[2,\\\"Congratulations, you made it!\\\"],[13],[2,\\\"\\\\n\\\\n      \\\"],[10,\\\"p\\\"],[12],[2,\\\"You’ve officially spun up your very first Ember app :-)\\\"],[13],[2,\\\"\\\\n      \\\"],[10,\\\"p\\\"],[12],[2,\\\"You’ve got one more decision to make: what do you want to do next? We’d suggest one of the following to help you get going:\\\"],[13],[2,\\\"\\\\n      \\\"],[10,\\\"ol\\\"],[12],[2,\\\"\\\\n        \\\"],[10,\\\"li\\\"],[12],[10,\\\"a\\\"],[15,6,[31,[\\\"https://guides.emberjs.com/v\\\",[34,0],\\\"/getting-started/quick-start/\\\"]]],[12],[2,\\\"Quick Start\\\"],[13],[2,\\\" - a quick introduction to how Ember works. Learn about defining your first route, writing a UI component and deploying your application.\\\"],[13],[2,\\\"\\\\n        \\\"],[10,\\\"li\\\"],[12],[10,\\\"a\\\"],[15,6,[31,[\\\"https://guides.emberjs.com/v\\\",[34,0],\\\"/tutorial/ember-cli/\\\"]]],[12],[2,\\\"Ember Guides\\\"],[13],[2,\\\" - this is our more thorough, hands-on intro to Ember. Your crash course in Ember philosophy, background and some in-depth discussion of how things work (and why they work the way they do).\\\"],[13],[2,\\\"\\\\n      \\\"],[13],[2,\\\"\\\\n      \\\"],[10,\\\"p\\\"],[12],[2,\\\"If you run into problems, you can check \\\"],[10,\\\"a\\\"],[14,6,\\\"http://stackoverflow.com/questions/tagged/ember.js\\\"],[12],[2,\\\"Stack Overflow\\\"],[13],[2,\\\" or \\\"],[10,\\\"a\\\"],[14,6,\\\"http://discuss.emberjs.com/\\\"],[12],[2,\\\"our forums\\\"],[13],[2,\\\"  for ideas and answers—someone’s probably been through the same thing and already posted an answer.  If not, you can post your \\\"],[10,\\\"strong\\\"],[12],[2,\\\"own\\\"],[13],[2,\\\" question. 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diff --git a/packages/fastboot-express-middleware/test/fixtures/app-with-metadata/package.json b/packages/fastboot-express-middleware/test/fixtures/app-with-metadata/package.json
index b65b58054..c573ca8f6 100644
--- a/packages/fastboot-express-middleware/test/fixtures/app-with-metadata/package.json
+++ b/packages/fastboot-express-middleware/test/fixtures/app-with-metadata/package.json
@@ -1 +1 @@
-{"dependencies":{},"fastboot":{"appName":"fastboot-app","config":{"fastboot-app":{"APP":{"autoboot":false,"name":"fastboot-app","version":"0.0.0+fcd8aedb"},"EmberENV":{"EXTEND_PROTOTYPES":{"Date":false},"FEATURES":{},"_APPLICATION_TEMPLATE_WRAPPER":false,"_DEFAULT_ASYNC_OBSERVERS":true,"_JQUERY_INTEGRATION":false,"_TEMPLATE_ONLY_GLIMMER_COMPONENTS":true},"environment":"development","exportApplicationGlobal":true,"locationType":"auto","modulePrefix":"fastboot-app","rootURL":"/"}},"manifest":{"appFiles":["assets/fastboot-app.js","assets/fastboot-app-fastboot.js"],"htmlFile":"index.html","vendorFiles":["assets/vendor.js","assets/auto-import-fastboot.js"]},"moduleWhitelist":[],"schemaVersion":3}}
\ No newline at end of file
+{"dependencies":{},"fastboot":{"appName":"fastboot-app","config":{"fastboot-app":{"APP":{"autoboot":false,"name":"fastboot-app","version":"0.0.0+fcd8aedb"},"EmberENV":{"EXTEND_PROTOTYPES":{"Date":false},"FEATURES":{},"_APPLICATION_TEMPLATE_WRAPPER":false,"_DEFAULT_ASYNC_OBSERVERS":true,"_JQUERY_INTEGRATION":false,"_TEMPLATE_ONLY_GLIMMER_COMPONENTS":true},"environment":"development","exportApplicationGlobal":true,"locationType":"auto","modulePrefix":"fastboot-app","rootURL":"/"}},"manifest":{"appFiles":["assets/fastboot-app.js","assets/fastboot-app-fastboot.js"],"htmlFile":"index.html","vendorFiles":["assets/vendor.js","assets/auto-import-fastboot.js"]},"moduleAllowlist":[],"schemaVersion":3}}
diff --git a/packages/fastboot-express-middleware/test/fixtures/basic-app/package.json b/packages/fastboot-express-middleware/test/fixtures/basic-app/package.json
index e849cc739..7c90bab0d 100644
--- a/packages/fastboot-express-middleware/test/fixtures/basic-app/package.json
+++ b/packages/fastboot-express-middleware/test/fixtures/basic-app/package.json
@@ -1,11 +1,11 @@
 {
   "dependencies": {},
   "fastboot": {
-    "moduleWhitelist": [],
+    "moduleAllowlist": [],
     "manifest": {
       "appFile": "assets/fastboot-test.js",
       "htmlFile": "index.html",
       "vendorFile": "assets/vendor.js"
     }
   }
-}
\ No newline at end of file
+}
diff --git a/packages/fastboot-express-middleware/test/fixtures/hot-swap-app/package.json b/packages/fastboot-express-middleware/test/fixtures/hot-swap-app/package.json
index e849cc739..7c90bab0d 100644
--- a/packages/fastboot-express-middleware/test/fixtures/hot-swap-app/package.json
+++ b/packages/fastboot-express-middleware/test/fixtures/hot-swap-app/package.json
@@ -1,11 +1,11 @@
 {
   "dependencies": {},
   "fastboot": {
-    "moduleWhitelist": [],
+    "moduleAllowlist": [],
     "manifest": {
       "appFile": "assets/fastboot-test.js",
       "htmlFile": "index.html",
       "vendorFile": "assets/vendor.js"
     }
   }
-}
\ No newline at end of file
+}
diff --git a/packages/fastboot-express-middleware/test/fixtures/multivalue-headers/assets/multivalue-headers-fastboot.js b/packages/fastboot-express-middleware/test/fixtures/multivalue-headers/assets/multivalue-headers-fastboot.js
index 80c48e922..b1843fa3d 100644
--- a/packages/fastboot-express-middleware/test/fixtures/multivalue-headers/assets/multivalue-headers-fastboot.js
+++ b/packages/fastboot-express-middleware/test/fixtures/multivalue-headers/assets/multivalue-headers-fastboot.js
@@ -31,7 +31,7 @@ define("multivalue-headers/initializers/ajax", ["exports"], function (_exports)
       try {
         options.url = protocol + '//' + get(this, 'fastboot.request.host') + options.url;
       } catch (fbError) {
-        throw new Error('You are using Ember Data with no host defined in your adapter. This will attempt to use the host of the FastBoot request, which is not configured for the current host of this request. Please set the hostWhitelist property for in your environment.js. FastBoot Error: ' + fbError.message);
+        throw new Error('You are using Ember Data with no host defined in your adapter. This will attempt to use the host of the FastBoot request, which is not configured for the current host of this request. Please set the hostAllowList property for in your environment.js. FastBoot Error: ' + fbError.message);
       }
     }
 
diff --git a/packages/fastboot-express-middleware/test/fixtures/multivalue-headers/assets/multivalue-headers-fastboot.map b/packages/fastboot-express-middleware/test/fixtures/multivalue-headers/assets/multivalue-headers-fastboot.map
index 6f5ac4ab8..0de10deee 100644
--- a/packages/fastboot-express-middleware/test/fixtures/multivalue-headers/assets/multivalue-headers-fastboot.map
+++ b/packages/fastboot-express-middleware/test/fixtures/multivalue-headers/assets/multivalue-headers-fastboot.map
@@ -1 +1 @@
-{"version":3,"sources":["app-factory.js","multivalue-headers/initializers/ajax.js","multivalue-headers/initializers/error-handler.js"],"sourcesContent":["define('~fastboot/app-factory', ['multivalue-headers/app', 'multivalue-headers/config/environment'], function(App, config) {\n  App = App['default'];\n  config = config['default'];\n\n  return {\n    'default': function() {\n      return App.create(config.APP);\n    }\n  };\n});\n","define(\"multivalue-headers/initializers/ajax\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n  const {\n    get\n  } = Ember;\n\n  var nodeAjax = function (options) {\n    let httpRegex = /^https?:\\/\\//;\n    let protocolRelativeRegex = /^\\/\\//;\n    let protocol = get(this, 'fastboot.request.protocol');\n\n    if (protocolRelativeRegex.test(options.url)) {\n      options.url = protocol + options.url;\n    } else if (!httpRegex.test(options.url)) {\n      try {\n        options.url = protocol + '//' + get(this, 'fastboot.request.host') + options.url;\n      } catch (fbError) {\n        throw new Error('You are using Ember Data with no host defined in your adapter. This will attempt to use the host of the FastBoot request, which is not configured for the current host of this request. Please set the hostWhitelist property for in your environment.js. FastBoot Error: ' + fbError.message);\n      }\n    }\n\n    if (najax) {\n      najax(options);\n    } else {\n      throw new Error('najax does not seem to be defined in your app. Did you override it via `addOrOverrideSandboxGlobals` in the fastboot server?');\n    }\n  };\n\n  var _default = {\n    name: 'ajax-service',\n    initialize: function (application) {\n      application.register('ajax:node', nodeAjax, {\n        instantiate: false\n      });\n      application.inject('adapter', '_ajaxRequest', 'ajax:node');\n      application.inject('adapter', 'fastboot', 'service:fastboot');\n    }\n  };\n  _exports.default = _default;\n});","define(\"multivalue-headers/initializers/error-handler\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n   * Initializer to attach an `onError` hook to your app running in fastboot. It catches any run loop\n   * exceptions and other errors and prevents the node process from crashing.\n   *\n   */\n  var _default = {\n    name: 'error-handler',\n    initialize: function () {\n      if (!Ember.onerror) {\n        // if no onerror handler is defined, define one for fastboot environments\n        Ember.onerror = function (err) {\n          const errorMessage = `There was an error running your app in fastboot. More info about the error: \\n ${err.stack || err}`;\n          console.error(errorMessage);\n        };\n      }\n    }\n  };\n  _exports.default = _default;\n});"],"names":[],"mappings":"AAAA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;ACTA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AC3CA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;","file":"multivalue-headers-fastboot.js"}
\ No newline at end of file
+{"version":3,"sources":["app-factory.js","multivalue-headers/initializers/ajax.js","multivalue-headers/initializers/error-handler.js"],"sourcesContent":["define('~fastboot/app-factory', ['multivalue-headers/app', 'multivalue-headers/config/environment'], function(App, config) {\n  App = App['default'];\n  config = config['default'];\n\n  return {\n    'default': function() {\n      return App.create(config.APP);\n    }\n  };\n});\n","define(\"multivalue-headers/initializers/ajax\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n  const {\n    get\n  } = Ember;\n\n  var nodeAjax = function (options) {\n    let httpRegex = /^https?:\\/\\//;\n    let protocolRelativeRegex = /^\\/\\//;\n    let protocol = get(this, 'fastboot.request.protocol');\n\n    if (protocolRelativeRegex.test(options.url)) {\n      options.url = protocol + options.url;\n    } else if (!httpRegex.test(options.url)) {\n      try {\n        options.url = protocol + '//' + get(this, 'fastboot.request.host') + options.url;\n      } catch (fbError) {\n        throw new Error('You are using Ember Data with no host defined in your adapter. This will attempt to use the host of the FastBoot request, which is not configured for the current host of this request. Please set the hostAllowList property for in your environment.js. FastBoot Error: ' + fbError.message);\n      }\n    }\n\n    if (najax) {\n      najax(options);\n    } else {\n      throw new Error('najax does not seem to be defined in your app. Did you override it via `addOrOverrideSandboxGlobals` in the fastboot server?');\n    }\n  };\n\n  var _default = {\n    name: 'ajax-service',\n    initialize: function (application) {\n      application.register('ajax:node', nodeAjax, {\n        instantiate: false\n      });\n      application.inject('adapter', '_ajaxRequest', 'ajax:node');\n      application.inject('adapter', 'fastboot', 'service:fastboot');\n    }\n  };\n  _exports.default = _default;\n});","define(\"multivalue-headers/initializers/error-handler\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n   * Initializer to attach an `onError` hook to your app running in fastboot. It catches any run loop\n   * exceptions and other errors and prevents the node process from crashing.\n   *\n   */\n  var _default = {\n    name: 'error-handler',\n    initialize: function () {\n      if (!Ember.onerror) {\n        // if no onerror handler is defined, define one for fastboot environments\n        Ember.onerror = function (err) {\n          const errorMessage = `There was an error running your app in fastboot. More info about the error: \\n ${err.stack || err}`;\n          console.error(errorMessage);\n        };\n      }\n    }\n  };\n  _exports.default = _default;\n});"],"names":[],"mappings":"AAAA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;ACTA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AC3CA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;","file":"multivalue-headers-fastboot.js"}
diff --git a/packages/fastboot-express-middleware/test/fixtures/multivalue-headers/package.json b/packages/fastboot-express-middleware/test/fixtures/multivalue-headers/package.json
index 81538a0fb..984daf0f1 100644
--- a/packages/fastboot-express-middleware/test/fixtures/multivalue-headers/package.json
+++ b/packages/fastboot-express-middleware/test/fixtures/multivalue-headers/package.json
@@ -1 +1 @@
-{"dependencies":{},"fastboot":{"appName":"multivalue-headers","config":{"multivalue-headers":{"APP":{"autoboot":false,"name":"multivalue-headers","version":"0.0.0+5110a671"},"EmberENV":{"EXTEND_PROTOTYPES":{"Date":false},"FEATURES":{},"_APPLICATION_TEMPLATE_WRAPPER":false,"_DEFAULT_ASYNC_OBSERVERS":true,"_JQUERY_INTEGRATION":false,"_TEMPLATE_ONLY_GLIMMER_COMPONENTS":true},"environment":"development","exportApplicationGlobal":true,"locationType":"auto","modulePrefix":"multivalue-headers","rootURL":"/"}},"manifest":{"appFiles":["assets/multivalue-headers.js","assets/multivalue-headers-fastboot.js"],"htmlFile":"index.html","vendorFiles":["assets/vendor.js","assets/auto-import-fastboot.js"]},"moduleWhitelist":[],"schemaVersion":3}}
\ No newline at end of file
+{"dependencies":{},"fastboot":{"appName":"multivalue-headers","config":{"multivalue-headers":{"APP":{"autoboot":false,"name":"multivalue-headers","version":"0.0.0+5110a671"},"EmberENV":{"EXTEND_PROTOTYPES":{"Date":false},"FEATURES":{},"_APPLICATION_TEMPLATE_WRAPPER":false,"_DEFAULT_ASYNC_OBSERVERS":true,"_JQUERY_INTEGRATION":false,"_TEMPLATE_ONLY_GLIMMER_COMPONENTS":true},"environment":"development","exportApplicationGlobal":true,"locationType":"auto","modulePrefix":"multivalue-headers","rootURL":"/"}},"manifest":{"appFiles":["assets/multivalue-headers.js","assets/multivalue-headers-fastboot.js"],"htmlFile":"index.html","vendorFiles":["assets/vendor.js","assets/auto-import-fastboot.js"]},"moduleAllowlist":[],"schemaVersion":3}}
diff --git a/packages/fastboot-express-middleware/test/fixtures/rejected-promise/package.json b/packages/fastboot-express-middleware/test/fixtures/rejected-promise/package.json
index 69ccdee21..ecfce2605 100644
--- a/packages/fastboot-express-middleware/test/fixtures/rejected-promise/package.json
+++ b/packages/fastboot-express-middleware/test/fixtures/rejected-promise/package.json
@@ -1,6 +1,6 @@
 {
   "fastboot": {
-    "moduleWhitelist": [],
+    "moduleAllowlist": [],
     "manifest": {
       "appFile": "app.js",
       "vendorFile": "vendor.js",
diff --git a/packages/fastboot/src/ember-app.js b/packages/fastboot/src/ember-app.js
index 3299a229a..3e088802c 100644
--- a/packages/fastboot/src/ember-app.js
+++ b/packages/fastboot/src/ember-app.js
@@ -35,7 +35,7 @@ class EmberApp {
     let distPath = (this.distPath = path.resolve(options.distPath));
     let config = loadConfig(distPath);
 
-    this.hostWhitelist = config.hostWhitelist;
+    this.hostAllowList = config.hostAllowList;
     this.config = config.config;
     this.appName = config.appName;
     this.html = config.html;
@@ -300,7 +300,7 @@ class EmberApp {
     let shouldRender = options.shouldRender !== undefined ? options.shouldRender : true;
     let bootOptions = buildBootOptions(shouldRender);
     let fastbootInfo = new FastBootInfo(req, res, {
-      hostWhitelist: this.hostWhitelist,
+      hostAllowList: this.hostAllowList,
       metadata: options.metadata,
     });
 
diff --git a/packages/fastboot/src/fastboot-info.js b/packages/fastboot/src/fastboot-info.js
index 50b181be8..d260b2924 100644
--- a/packages/fastboot/src/fastboot-info.js
+++ b/packages/fastboot/src/fastboot-info.js
@@ -11,16 +11,16 @@ const FastBootResponse = require('./fastboot-response');
  * @param {ClientRequest} the incoming request object
  * @param {ClientResponse} the response object
  * @param {Object} additional options passed to fastboot info
- * @param {Array} [options.hostWhitelist] expected hosts in your application
+ * @param {Array} [options.hostAllowList] expected hosts in your application
  * @param {Object} [options.metaData] per request meta data
  */
 module.exports = class FastBootInfo {
   constructor(request, response, options) {
     this.deferredPromise = Promise.resolve();
-    let { hostWhitelist, metadata } = options;
+    let { hostAllowList, metadata } = options;
 
     if (request) {
-      this.request = new FastBootRequest(request, hostWhitelist);
+      this.request = new FastBootRequest(request, hostAllowList);
     }
 
     this.response = new FastBootResponse(response || {});
diff --git a/packages/fastboot/src/fastboot-request.js b/packages/fastboot/src/fastboot-request.js
index ed7a1c70f..b141c9baf 100644
--- a/packages/fastboot/src/fastboot-request.js
+++ b/packages/fastboot/src/fastboot-request.js
@@ -4,8 +4,8 @@ const cookie = require('cookie');
 const FastBootHeaders = require('./fastboot-headers');
 
 class FastBootRequest {
-  constructor(request, hostWhitelist) {
-    this.hostWhitelist = hostWhitelist;
+  constructor(request, hostAllowList) {
+    this.hostAllowList = hostAllowList;
 
     this.protocol = `${request.protocol}:`;
     this.headers = new FastBootHeaders(request.headers);
@@ -18,12 +18,12 @@ class FastBootRequest {
   }
 
   host() {
-    if (!this.hostWhitelist) {
-      throw new Error('You must provide a hostWhitelist to retrieve the host');
+    if (!this.hostAllowList) {
+      throw new Error('You must provide a hostAllowList to retrieve the host');
     }
 
     var host = this.headers.get('host');
-    var matchFound = this.hostWhitelist.some(function(entry) {
+    var matchFound = this.hostAllowList.some(function(entry) {
       if (entry[0] === '/' && entry.slice(-1) === '/') {
         var regexp = new RegExp(entry.slice(1, -1));
         return regexp.test(host);
@@ -33,7 +33,7 @@ class FastBootRequest {
     });
 
     if (!matchFound) {
-      throw new Error(`The host header did not match a hostWhitelist entry. Host header: ${host}`);
+      throw new Error(`The host header did not match a hostAllowList entry. Host header: ${host}`);
     }
 
     return host;
diff --git a/packages/fastboot/src/fastboot-schema.js b/packages/fastboot/src/fastboot-schema.js
index 91fcede9c..fcda9dc44 100644
--- a/packages/fastboot/src/fastboot-schema.js
+++ b/packages/fastboot/src/fastboot-schema.js
@@ -83,7 +83,7 @@ function loadConfig(distPath) {
   }
 
   let sandboxRequire = buildWhitelistedRequire(
-    pkg.fastboot.moduleWhitelist,
+    pkg.fastboot.moduleAllowlist,
     distPath,
     schemaVersion < FastBootSchemaVersions.strictWhitelist
   );
@@ -91,7 +91,7 @@ function loadConfig(distPath) {
   return {
     scripts,
     html,
-    hostWhitelist: pkg.fastboot.hostWhitelist,
+    hostAllowList: pkg.fastboot.hostAllowList,
     config,
     appName,
     sandboxRequire,
diff --git a/packages/fastboot/test/fastboot-request-test.js b/packages/fastboot/test/fastboot-request-test.js
index 4e2b096e9..127f5bc07 100644
--- a/packages/fastboot/test/fastboot-request-test.js
+++ b/packages/fastboot/test/fastboot-request-test.js
@@ -2,7 +2,7 @@ var expect = require('chai').expect;
 var FastBootRequest = require('./../src/fastboot-request.js');
 
 describe('FastBootRequest', function() {
-  it('throws an exception if no hostWhitelist is provided', function() {
+  it('throws an exception if no hostAllowList is provided', function() {
     var request = {
       protocol: 'http',
       headers: {
@@ -14,10 +14,10 @@ describe('FastBootRequest', function() {
     var fn = function() {
       fastbootRequest.host();
     };
-    expect(fn).to.throw(/You must provide a hostWhitelist to retrieve the host/);
+    expect(fn).to.throw(/You must provide a hostAllowList to retrieve the host/);
   });
 
-  it('throws an exception if the host header does not match an entry in the hostWhitelist', function() {
+  it('throws an exception if the host header does not match an entry in the hostAllowList', function() {
     var request = {
       protocol: 'http',
       headers: {
@@ -25,18 +25,18 @@ describe('FastBootRequest', function() {
         cookie: '',
       },
     };
-    var hostWhitelist = ['example.com', 'localhost:4200'];
-    var fastbootRequest = new FastBootRequest(request, hostWhitelist);
+    var hostAllowList = ['example.com', 'localhost:4200'];
+    var fastbootRequest = new FastBootRequest(request, hostAllowList);
 
     var fn = function() {
       fastbootRequest.host();
     };
     expect(fn).to.throw(
-      /The host header did not match a hostWhitelist entry. Host header: evil.com/
+      /The host header did not match a hostAllowList entry. Host header: evil.com/
     );
   });
 
-  it('returns the host if it is in the hostWhitelist', function() {
+  it('returns the host if it is in the hostAllowList', function() {
     var request = {
       protocol: 'http',
       headers: {
@@ -44,14 +44,14 @@ describe('FastBootRequest', function() {
         cookie: '',
       },
     };
-    var hostWhitelist = ['example.com', 'localhost:4200'];
-    var fastbootRequest = new FastBootRequest(request, hostWhitelist);
+    var hostAllowList = ['example.com', 'localhost:4200'];
+    var fastbootRequest = new FastBootRequest(request, hostAllowList);
 
     var host = fastbootRequest.host();
     expect(host).to.equal('localhost:4200');
   });
 
-  it('returns the host if it matches a regex in the hostWhitelist', function() {
+  it('returns the host if it matches a regex in the hostAllowList', function() {
     var request = {
       protocol: 'http',
       headers: {
@@ -59,8 +59,8 @@ describe('FastBootRequest', function() {
         cookie: '',
       },
     };
-    var hostWhitelist = ['example.com', '/localhost:\\d+/'];
-    var fastbootRequest = new FastBootRequest(request, hostWhitelist);
+    var hostAllowList = ['example.com', '/localhost:\\d+/'];
+    var fastbootRequest = new FastBootRequest(request, hostAllowList);
 
     var host = fastbootRequest.host();
     expect(host).to.equal('localhost:4200');
diff --git a/packages/fastboot/test/fixtures/app-with-console-log/package.json b/packages/fastboot/test/fixtures/app-with-console-log/package.json
index cced53b2d..a342f3915 100644
--- a/packages/fastboot/test/fixtures/app-with-console-log/package.json
+++ b/packages/fastboot/test/fixtures/app-with-console-log/package.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {},
   "fastboot": {
-    "moduleWhitelist": [],
+    "moduleAllowlist": [],
     "schemaVersion": 1,
     "manifest": {
       "appFile": "assets/fastboot-test.js",
diff --git a/packages/fastboot/test/fixtures/app-with-dependencies/assets/app-with-dependencies-fastboot.js b/packages/fastboot/test/fixtures/app-with-dependencies/assets/app-with-dependencies-fastboot.js
index dbe8d3c0f..61ab41084 100644
--- a/packages/fastboot/test/fixtures/app-with-dependencies/assets/app-with-dependencies-fastboot.js
+++ b/packages/fastboot/test/fixtures/app-with-dependencies/assets/app-with-dependencies-fastboot.js
@@ -20,7 +20,7 @@ define('app-with-dependencies/initializers/ajax', ['exports'], function (exports
       try {
         options.url = protocol + '//' + get(this, 'fastboot.request.host') + options.url;
       } catch (fbError) {
-        throw new Error('You are using Ember Data with no host defined in your adapter. This will attempt to use the host of the FastBoot request, which is not configured for the current host of this request. Please set the hostWhitelist property for in your environment.js. FastBoot Error: ' + fbError.message);
+        throw new Error('You are using Ember Data with no host defined in your adapter. This will attempt to use the host of the FastBoot request, which is not configured for the current host of this request. Please set the hostAllowList property for in your environment.js. FastBoot Error: ' + fbError.message);
       }
     }
 
diff --git a/packages/fastboot/test/fixtures/app-with-dependencies/assets/vendor.js b/packages/fastboot/test/fixtures/app-with-dependencies/assets/vendor.js
index bfd49ec84..085475792 100644
--- a/packages/fastboot/test/fixtures/app-with-dependencies/assets/vendor.js
+++ b/packages/fastboot/test/fixtures/app-with-dependencies/assets/vendor.js
@@ -11104,23 +11104,23 @@ enifed('@ember/application/instance', ['exports', 'ember-babel', '@ember/polyfil
   /**
     The `ApplicationInstance` encapsulates all of the stateful aspects of a
     running `Application`.
-  
+
     At a high-level, we break application boot into two distinct phases:
-  
+
     * Definition time, where all of the classes, templates, and other
       dependencies are loaded (typically in the browser).
     * Run time, where we begin executing the application once everything
       has loaded.
-  
+
     Definition time can be expensive and only needs to happen once since it is
     an idempotent operation. For example, between test runs and FastBoot
     requests, the application stays the same. It is only the state that we want
     to reset.
-  
+
     That state is what the `ApplicationInstance` manages: it is responsible for
     creating the container that contains all application state, and disposing of
     it once the particular test run or FastBoot request has finished.
-  
+
     @public
     @class ApplicationInstance
     @extends EngineInstance
@@ -11316,21 +11316,21 @@ enifed('@ember/application/instance', ['exports', 'ember-babel', '@ember/polyfil
   /**
     A list of boot-time configuration options for customizing the behavior of
     an `ApplicationInstance`.
-  
+
     This is an interface class that exists purely to document the available
     options; you do not need to construct it manually. Simply pass a regular
     JavaScript object containing the desired options into methods that require
     one of these options object:
-  
+
     ```javascript
     MyApp.visit("/", { location: "none", rootElement: "#container" });
     ```
-  
+
     Not all combinations of the supported options are valid. See the documentation
     on `Application#visit` for the supported configurations.
-  
+
     Internal, experimental or otherwise unstable flags are marked as private.
-  
+
     @class BootOptions
     @namespace ApplicationInstance
     @public
@@ -11517,69 +11517,69 @@ enifed('@ember/application/lib/application', ['exports', 'ember-babel', 'ember-u
     An instance of `Application` is the starting point for every Ember
     application. It helps to instantiate, initialize and coordinate the many
     objects that make up your app.
-  
+
     Each Ember app has one and only one `Application` object. In fact, the
     very first thing you should do in your application is create the instance:
-  
+
     ```javascript
     import Application from '@ember/application';
-  
+
     window.App = Application.create();
     ```
-  
+
     Typically, the application object is the only global variable. All other
     classes in your app should be properties on the `Application` instance,
     which highlights its first role: a global namespace.
-  
+
     For example, if you define a view class, it might look like this:
-  
+
     ```javascript
     import Application from '@ember/application';
-  
+
     App.MyView = Ember.View.extend();
     ```
-  
+
     By default, calling `Application.create()` will automatically initialize
     your application by calling the `Application.initialize()` method. If
     you need to delay initialization, you can call your app's `deferReadiness()`
     method. When you are ready for your app to be initialized, call its
     `advanceReadiness()` method.
-  
+
     You can define a `ready` method on the `Application` instance, which
     will be run by Ember when the application is initialized.
-  
+
     Because `Application` inherits from `Ember.Namespace`, any classes
     you create will have useful string representations when calling `toString()`.
     See the `Ember.Namespace` documentation for more information.
-  
+
     While you can think of your `Application` as a container that holds the
     other classes in your application, there are several other responsibilities
     going on under-the-hood that you may want to understand.
-  
+
     ### Event Delegation
-  
+
     Ember uses a technique called _event delegation_. This allows the framework
     to set up a global, shared event listener instead of requiring each view to
     do it manually. For example, instead of each view registering its own
     `mousedown` listener on its associated element, Ember sets up a `mousedown`
     listener on the `body`.
-  
+
     If a `mousedown` event occurs, Ember will look at the target of the event and
     start walking up the DOM node tree, finding corresponding views and invoking
     their `mouseDown` method as it goes.
-  
+
     `Application` has a number of default events that it listens for, as
     well as a mapping from lowercase events to camel-cased view method names. For
     example, the `keypress` event causes the `keyPress` method on the view to be
     called, the `dblclick` event causes `doubleClick` to be called, and so on.
-  
+
     If there is a bubbling browser event that Ember does not listen for by
     default, you can specify custom events and their corresponding view method
     names by setting the application's `customEvents` property:
-  
+
     ```javascript
     import Application from '@ember/application';
-  
+
     let App = Application.create({
       customEvents: {
         // add support for the paste event
@@ -11587,14 +11587,14 @@ enifed('@ember/application/lib/application', ['exports', 'ember-babel', 'ember-u
       }
     });
     ```
-  
+
     To prevent Ember from setting up a listener for a default event,
     specify the event name with a `null` value in the `customEvents`
     property:
-  
+
     ```javascript
     import Application from '@ember/application';
-  
+
     let App = Application.create({
       customEvents: {
         // prevent listeners for mouseenter/mouseleave events
@@ -11603,80 +11603,80 @@ enifed('@ember/application/lib/application', ['exports', 'ember-babel', 'ember-u
       }
     });
     ```
-  
+
     By default, the application sets up these event listeners on the document
     body. However, in cases where you are embedding an Ember application inside
     an existing page, you may want it to set up the listeners on an element
     inside the body.
-  
+
     For example, if only events inside a DOM element with the ID of `ember-app`
     should be delegated, set your application's `rootElement` property:
-  
+
     ```javascript
     import Application from '@ember/application';
-  
+
     let App = Application.create({
       rootElement: '#ember-app'
     });
     ```
-  
+
     The `rootElement` can be either a DOM element or a jQuery-compatible selector
     string. Note that *views appended to the DOM outside the root element will
     not receive events.* If you specify a custom root element, make sure you only
     append views inside it!
-  
+
     To learn more about the events Ember components use, see
-  
+
     [components/handling-events](https://guides.emberjs.com/release/components/handling-events/#toc_event-names).
-  
+
     ### Initializers
-  
+
     Libraries on top of Ember can add initializers, like so:
-  
+
     ```javascript
     import Application from '@ember/application';
-  
+
     Application.initializer({
       name: 'api-adapter',
-  
+
       initialize: function(application) {
         application.register('api-adapter:main', ApiAdapter);
       }
     });
     ```
-  
+
     Initializers provide an opportunity to access the internal registry, which
     organizes the different components of an Ember application. Additionally
     they provide a chance to access the instantiated application. Beyond
     being used for libraries, initializers are also a great way to organize
     dependency injection or setup in your own application.
-  
+
     ### Routing
-  
+
     In addition to creating your application's router, `Application` is
     also responsible for telling the router when to start routing. Transitions
     between routes can be logged with the `LOG_TRANSITIONS` flag, and more
     detailed intra-transition logging can be logged with
     the `LOG_TRANSITIONS_INTERNAL` flag:
-  
+
     ```javascript
     import Application from '@ember/application';
-  
+
     let App = Application.create({
       LOG_TRANSITIONS: true, // basic logging of successful transitions
       LOG_TRANSITIONS_INTERNAL: true // detailed logging of all routing steps
     });
     ```
-  
+
     By default, the router will begin trying to translate the current URL into
     application state once the browser emits the `DOMContentReady` event. If you
     need to defer routing, you can call the application's `deferReadiness()`
     method. Once routing can begin, call the `advanceReadiness()` method.
-  
+
     If there is any setup required before routing begins, you can implement a
     `ready()` method on your app that will be invoked immediately before routing
     begins.
-  
+
     @class Application
     @extends Engine
     @uses RegistryProxyMixin
@@ -12126,18 +12126,18 @@ enifed('@ember/application/lib/lazy_load', ['exports', 'ember-environment', 'emb
   /**
     Detects when a specific package of Ember (e.g. 'Application')
     has fully loaded and is available for extension.
-  
+
     The provided `callback` will be called with the `name` passed
     resolved from a string into the object:
-  
+
     ``` javascript
     import { onLoad } from '@ember/application';
-  
+
     onLoad('Ember.Application' function(hbars) {
       hbars.registerHelper(...);
     });
     ```
-  
+
     @method onLoad
     @static
     @for @ember/application
@@ -12159,7 +12159,7 @@ enifed('@ember/application/lib/lazy_load', ['exports', 'ember-environment', 'emb
   /**
     Called when an Ember.js package (e.g Application) has finished
     loading. Triggers any callbacks registered for this event.
-  
+
     @method runLoadHooks
     @static
     @for @ember/application
@@ -12232,10 +12232,10 @@ enifed('@ember/canary-features/index', ['exports', '@ember/polyfills', 'ember-en
     /**
       The hash of enabled Canary features. Add to this, any canary features
       before creating your application.
-    
+
       Alternatively (and recommended), you can also define `EmberENV.FEATURES`
       if you need to enable features flagged at runtime.
-    
+
       @class FEATURES
       @namespace Ember
       @static
@@ -12246,12 +12246,12 @@ enifed('@ember/canary-features/index', ['exports', '@ember/polyfills', 'ember-en
     /**
       Determine whether the specified `feature` is enabled. Used by Ember's
       build tools to exclude experimental features from beta/stable builds.
-    
+
       You can define the following configuration options:
-    
+
       * `EmberENV.ENABLE_OPTIONAL_FEATURES` - enable any features that have not been explicitly
         enabled/disabled.
-    
+
       @method isEnabled
       @param {String} feature The feature to check
       @return {Boolean}
@@ -12307,23 +12307,23 @@ enifed('@ember/controller/index', ['exports', 'ember-runtime', '@ember/controlle
   /**
     Creates a property that lazily looks up another controller in the container.
     Can only be used when defining another controller.
-  
+
     Example:
-  
+
     ```app/controllers/post.js
     import Controller, {
       inject as controller
     } from '@ember/controller';
-  
+
     export default Controller.extend({
       posts: controller()
     });
     ```
-  
+
     This example will create a `posts` property on the `post` controller that
     looks up the `posts` controller in the container, making it easy to
     reference other controllers.
-  
+
     @method inject
     @static
     @for @ember/controller
@@ -12666,10 +12666,10 @@ enifed('@ember/debug/lib/deprecate', ['exports', '@ember/deprecated-features', '
       Deprecations are invoked by calls to [@ember/application/deprecations/deprecate](https://emberjs.com/api/ember/release/classes/@ember%2Fapplication%2Fdeprecations/methods/deprecate?anchor=deprecate).
       The following example demonstrates its usage by registering a handler that throws an error if the
       message contains the word "should", otherwise defers to the default handler.
-    
+
       ```javascript
       import { registerDeprecationHandler } from '@ember/debug';
-    
+
       registerDeprecationHandler((message, options, next) => {
         if (message.indexOf('should') !== -1) {
           throw new Error(`Deprecation message with should: ${message}`);
@@ -12679,9 +12679,9 @@ enifed('@ember/debug/lib/deprecate', ['exports', '@ember/deprecated-features', '
         }
       });
       ```
-    
+
       The handler function takes the following arguments:
-    
+
       <ul>
         <li> <code>message</code> - The message received from the deprecation call.</li>
         <li> <code>options</code> - An object passed in with the deprecation call containing additional information including:</li>
@@ -12691,7 +12691,7 @@ enifed('@ember/debug/lib/deprecate', ['exports', '@ember/deprecated-features', '
           </ul>
         <li> <code>next</code> - A function that calls into the previously registered handler.</li>
       </ul>
-    
+
       @public
       @static
       @method registerDeprecationHandler
@@ -13027,14 +13027,14 @@ enifed('@ember/engine/index', ['exports', '@ember/engine/lib/engine-parent', 'em
   /**
     The `Engine` class contains core functionality for both applications and
     engines.
-  
+
     Each engine manages a registry that's used for dependency injection and
     exposed through `RegistryProxy`.
-  
+
     Engines also manage initializers and instance initializers.
-  
+
     Engines can spawn `EngineInstance` instances via `buildInstance()`.
-  
+
     @class Engine
     @extends Ember.Namespace
     @uses RegistryProxy
@@ -13321,15 +13321,15 @@ enifed('@ember/engine/index', ['exports', '@ember/engine/lib/engine-parent', 'em
 
   /**
     This function defines the default lookup rules for container lookups:
-  
+
     * templates are looked up on `Ember.TEMPLATES`
     * other names are looked up on the application after classifying the name.
       For example, `controller:post` looks up `App.PostController` by default.
     * if the default lookup fails, look for registered classes on the container
-  
+
     This allows the application to register default injections in the container
     that could be overridden by the normal naming convention.
-  
+
     @private
     @method resolverFor
     @param {Ember.Namespace} namespace the namespace to look for classes
@@ -13413,7 +13413,7 @@ enifed('@ember/engine/instance', ['exports', 'ember-babel', 'ember-utils', 'embe
   /**
     The `EngineInstance` encapsulates all of the stateful aspects of a
     running `Engine`.
-  
+
     @public
     @class EngineInstance
     @extends EmberObject
@@ -13569,7 +13569,7 @@ enifed('@ember/engine/lib/engine-parent', ['exports', 'ember-utils'], function (
 
   /**
     `getEngineParent` retrieves an engine instance's parent instance.
-  
+
     @method getEngineParent
     @param {EngineInstance} engine An engine instance.
     @return {EngineInstance} The parent engine instance.
@@ -13586,7 +13586,7 @@ enifed('@ember/engine/lib/engine-parent', ['exports', 'ember-utils'], function (
 
   /**
     `setEngineParent` sets an engine instance's parent instance.
-  
+
     @method setEngineParent
     @param {EngineInstance} engine An engine instance.
     @param {EngineInstance} parent The parent engine instance.
@@ -13612,7 +13612,7 @@ enifed("@ember/error/index", ["exports", "ember-babel"], function (exports, _emb
     }
     /**
       A subclass of the JavaScript Error object for use in Ember.
-    
+
       @class EmberError
       @extends Error
       @constructor
@@ -13667,48 +13667,48 @@ enifed('@ember/instrumentation/index', ['exports', 'ember-environment'], functio
       The purpose of the Ember Instrumentation module is
       to provide efficient, general-purpose instrumentation
       for Ember.
-    
+
       Subscribe to a listener by using `subscribe`:
-    
+
       ```javascript
       import { subscribe } from '@ember/instrumentation';
-    
+
       subscribe("render", {
         before(name, timestamp, payload) {
-    
+
         },
-    
+
         after(name, timestamp, payload) {
-    
+
         }
       });
       ```
-    
+
       If you return a value from the `before` callback, that same
       value will be passed as a fourth parameter to the `after`
       callback.
-    
+
       Instrument a block of code by using `instrument`:
-    
+
       ```javascript
       import { instrument } from '@ember/instrumentation';
-    
+
       instrument("render.handlebars", payload, function() {
         // rendering logic
       }, binding);
       ```
-    
+
       Event names passed to `instrument` are namespaced
       by periods, from more general to more specific. Subscribers
       can listen for events by whatever level of granularity they
       are interested in.
-    
+
       In the above example, the event is `render.handlebars`,
       and the subscriber listened for all events beginning with
       `render`. It would receive callbacks for events named
       `render`, `render.handlebars`, `render.container`, or
       even `render.handlebars.layout`.
-    
+
       @class Instrumentation
       @static
       @private
@@ -13828,14 +13828,14 @@ enifed('@ember/instrumentation/index', ['exports', 'ember-environment'], functio
     }
     /**
       Subscribes to a particular event or instrumented block of code.
-    
+
       @method subscribe
       @for @ember/instrumentation
       @static
-    
+
       @param {String} [pattern] Namespaced event name.
       @param {Object} [object] Before and After hooks.
-    
+
       @return {Subscriber}
       @private
     */
@@ -13864,11 +13864,11 @@ enifed('@ember/instrumentation/index', ['exports', 'ember-environment'], functio
     }
     /**
       Unsubscribes from a particular event or instrumented block of code.
-    
+
       @method unsubscribe
       @for @ember/instrumentation
       @static
-    
+
       @param {Object} [subscriber]
       @private
     */
@@ -13884,7 +13884,7 @@ enifed('@ember/instrumentation/index', ['exports', 'ember-environment'], functio
     }
     /**
       Resets `Instrumentation` by flushing list of subscribers.
-    
+
       @method reset
       @for @ember/instrumentation
       @static
@@ -14066,7 +14066,7 @@ enifed('@ember/map/lib/ordered-set', ['exports', 'ember-babel', '@ember/debug',
     This class is used internally by Ember and Ember Data.
     Please do not use it at this time. We plan to clean it up
     and add many tests soon.
-  
+
     @class OrderedSet
     @namespace Ember
     @constructor
@@ -14641,26 +14641,26 @@ enifed('@ember/object/lib/computed/computed_macros', ['exports', 'ember-metal',
   /**
     A computed property that returns true if the value of the dependent
     property is null, an empty string, empty array, or empty function.
-  
+
     Example
-  
+
     ```javascript
     import { empty } from '@ember/object/computed';
     import EmberObject from '@ember/object';
-  
+
     let ToDoList = EmberObject.extend({
       isDone: empty('todos')
     });
-  
+
     let todoList = ToDoList.create({
       todos: ['Unit Test', 'Documentation', 'Release']
     });
-  
+
     todoList.get('isDone'); // false
     todoList.get('todos').clear();
     todoList.get('isDone'); // true
     ```
-  
+
     @since 1.6.0
     @method empty
     @static
@@ -14669,7 +14669,7 @@ enifed('@ember/object/lib/computed/computed_macros', ['exports', 'ember-metal',
     @return {ComputedProperty} computed property which returns true if
     the value of the dependent property is null, an empty string, empty array,
     or empty function and false if the underlying value is not empty.
-  
+
     @public
   */
   function empty(dependentKey) {
@@ -14681,24 +14681,24 @@ enifed('@ember/object/lib/computed/computed_macros', ['exports', 'ember-metal',
   /**
     A computed property that returns true if the value of the dependent
     property is NOT null, an empty string, empty array, or empty function.
-  
+
     Example
-  
+
     ```javascript
     import { notEmpty } from '@ember/object/computed';
     import EmberObject from '@ember/object';
-  
+
     let Hamster = EmberObject.extend({
       hasStuff: notEmpty('backpack')
     });
-  
+
     let hamster = Hamster.create({ backpack: ['Food', 'Sleeping Bag', 'Tent'] });
-  
+
     hamster.get('hasStuff');         // true
     hamster.get('backpack').clear(); // []
     hamster.get('hasStuff');         // false
     ```
-  
+
     @method notEmpty
     @static
     @for @ember/object/computed
@@ -14717,26 +14717,26 @@ enifed('@ember/object/lib/computed/computed_macros', ['exports', 'ember-metal',
     A computed property that returns true if the value of the dependent
     property is null or undefined. This avoids errors from JSLint complaining
     about use of ==, which can be technically confusing.
-  
+
     Example
-  
+
     ```javascript
     import { none } from '@ember/object/computed';
     import EmberObject from '@ember/object';
-  
+
     let Hamster = EmberObject.extend({
       isHungry: none('food')
     });
-  
+
     let hamster = Hamster.create();
-  
+
     hamster.get('isHungry'); // true
     hamster.set('food', 'Banana');
     hamster.get('isHungry'); // false
     hamster.set('food', null);
     hamster.get('isHungry'); // true
     ```
-  
+
     @method none
     @static
     @for @ember/object/computed
@@ -14754,24 +14754,24 @@ enifed('@ember/object/lib/computed/computed_macros', ['exports', 'ember-metal',
   /**
     A computed property that returns the inverse boolean value
     of the original value for the dependent property.
-  
+
     Example
-  
+
     ```javascript
     import { not } from '@ember/object/computed';
     import EmberObject from '@ember/object';
-  
+
     let User = EmberObject.extend({
       isAnonymous: not('loggedIn')
     });
-  
+
     let user = User.create({loggedIn: false});
-  
+
     user.get('isAnonymous'); // true
     user.set('loggedIn', true);
     user.get('isAnonymous'); // false
     ```
-  
+
     @method not
     @static
     @for @ember/object/computed
@@ -14789,17 +14789,17 @@ enifed('@ember/object/lib/computed/computed_macros', ['exports', 'ember-metal',
   /**
     A computed property that converts the provided dependent property
     into a boolean value.
-  
+
     ```javascript
     import { bool } from '@ember/object/computed';
     import EmberObject from '@ember/object';
-  
+
     let Hamster = EmberObject.extend({
       hasBananas: bool('numBananas')
     });
-  
+
     let hamster = Hamster.create();
-  
+
     hamster.get('hasBananas'); // false
     hamster.set('numBananas', 0);
     hamster.get('hasBananas'); // false
@@ -14808,7 +14808,7 @@ enifed('@ember/object/lib/computed/computed_macros', ['exports', 'ember-metal',
     hamster.set('numBananas', null);
     hamster.get('hasBananas'); // false
     ```
-  
+
     @method bool
     @static
     @for @ember/object/computed
@@ -14827,26 +14827,26 @@ enifed('@ember/object/lib/computed/computed_macros', ['exports', 'ember-metal',
     A computed property which matches the original value for the
     dependent property against a given RegExp, returning `true`
     if the value matches the RegExp and `false` if it does not.
-  
+
     Example
-  
+
     ```javascript
     import { match } from '@ember/object/computed';
     import EmberObject from '@ember/object';
-  
+
     let User = EmberObject.extend({
       hasValidEmail: match('email', /^.+@.+\..+$/)
     });
-  
+
     let user = User.create({loggedIn: false});
-  
+
     user.get('hasValidEmail'); // false
     user.set('email', '');
     user.get('hasValidEmail'); // false
     user.set('email', 'ember_hamster@example.com');
     user.get('hasValidEmail'); // true
     ```
-  
+
     @method match
     @static
     @for @ember/object/computed
@@ -14866,26 +14866,26 @@ enifed('@ember/object/lib/computed/computed_macros', ['exports', 'ember-metal',
   /**
     A computed property that returns true if the provided dependent property
     is equal to the given value.
-  
+
     Example
-  
+
     ```javascript
     import { equal } from '@ember/object/computed';
     import EmberObject from '@ember/object';
-  
+
     let Hamster = EmberObject.extend({
       satisfied: equal('percentCarrotsEaten', 100)
     });
-  
+
     let hamster = Hamster.create();
-  
+
     hamster.get('satisfied'); // false
     hamster.set('percentCarrotsEaten', 100);
     hamster.get('satisfied'); // true
     hamster.set('percentCarrotsEaten', 50);
     hamster.get('satisfied'); // false
     ```
-  
+
     @method equal
     @static
     @for @ember/object/computed
@@ -14904,26 +14904,26 @@ enifed('@ember/object/lib/computed/computed_macros', ['exports', 'ember-metal',
   /**
     A computed property that returns true if the provided dependent property
     is greater than the provided value.
-  
+
     Example
-  
+
     ```javascript
     import { gt } from '@ember/object/computed';
     import EmberObject from '@ember/object';
-  
+
     let Hamster = EmberObject.extend({
       hasTooManyBananas: gt('numBananas', 10)
     });
-  
+
     let hamster = Hamster.create();
-  
+
     hamster.get('hasTooManyBananas'); // false
     hamster.set('numBananas', 3);
     hamster.get('hasTooManyBananas'); // false
     hamster.set('numBananas', 11);
     hamster.get('hasTooManyBananas'); // true
     ```
-  
+
     @method gt
     @static
     @for @ember/object/computed
@@ -14942,26 +14942,26 @@ enifed('@ember/object/lib/computed/computed_macros', ['exports', 'ember-metal',
   /**
     A computed property that returns true if the provided dependent property
     is greater than or equal to the provided value.
-  
+
     Example
-  
+
     ```javascript
     import { gte } from '@ember/object/computed';
     import EmberObject from '@ember/object';
-  
+
     let Hamster = EmberObject.extend({
       hasTooManyBananas: gte('numBananas', 10)
     });
-  
+
     let hamster = Hamster.create();
-  
+
     hamster.get('hasTooManyBananas'); // false
     hamster.set('numBananas', 3);
     hamster.get('hasTooManyBananas'); // false
     hamster.set('numBananas', 10);
     hamster.get('hasTooManyBananas'); // true
     ```
-  
+
     @method gte
     @static
     @for @ember/object/computed
@@ -14980,26 +14980,26 @@ enifed('@ember/object/lib/computed/computed_macros', ['exports', 'ember-metal',
   /**
     A computed property that returns true if the provided dependent property
     is less than the provided value.
-  
+
     Example
-  
+
     ```javascript
     import { lt } from '@ember/object/computed';
     import EmberObject from '@ember/object';
-  
+
     let Hamster = EmberObject.extend({
       needsMoreBananas: lt('numBananas', 3)
     });
-  
+
     let hamster = Hamster.create();
-  
+
     hamster.get('needsMoreBananas'); // true
     hamster.set('numBananas', 3);
     hamster.get('needsMoreBananas'); // false
     hamster.set('numBananas', 2);
     hamster.get('needsMoreBananas'); // true
     ```
-  
+
     @method lt
     @static
     @for @ember/object/computed
@@ -15018,26 +15018,26 @@ enifed('@ember/object/lib/computed/computed_macros', ['exports', 'ember-metal',
   /**
     A computed property that returns true if the provided dependent property
     is less than or equal to the provided value.
-  
+
     Example
-  
+
     ```javascript
     import { lte } from '@ember/object/computed';
     import EmberObject from '@ember/object';
-  
+
     let Hamster = EmberObject.extend({
       needsMoreBananas: lte('numBananas', 3)
     });
-  
+
     let hamster = Hamster.create();
-  
+
     hamster.get('needsMoreBananas'); // true
     hamster.set('numBananas', 5);
     hamster.get('needsMoreBananas'); // false
     hamster.set('numBananas', 3);
     hamster.get('needsMoreBananas'); // true
     ```
-  
+
     @method lte
     @static
     @for @ember/object/computed
@@ -15056,25 +15056,25 @@ enifed('@ember/object/lib/computed/computed_macros', ['exports', 'ember-metal',
   /**
     A computed property that performs a logical `and` on the
     original values for the provided dependent properties.
-  
+
     You may pass in more than two properties and even use
     property brace expansion.  The computed property will
     return the first falsy value or last truthy value
     just like JavaScript's `&&` operator.
-  
+
     Example
-  
+
     ```javascript
     import { and } from '@ember/object/computed';
     import EmberObject from '@ember/object';
-  
+
     let Hamster = EmberObject.extend({
       readyForCamp: and('hasTent', 'hasBackpack'),
       readyForHike: and('hasWalkingStick', 'hasBackpack')
     });
-  
+
     let tomster = Hamster.create();
-  
+
     tomster.get('readyForCamp'); // false
     tomster.set('hasTent', true);
     tomster.get('readyForCamp'); // false
@@ -15085,7 +15085,7 @@ enifed('@ember/object/lib/computed/computed_macros', ['exports', 'ember-metal',
     tomster.set('hasWalkingStick', null);
     tomster.get('readyForHike'); // null
     ```
-  
+
     @method and
     @static
     @for @ember/object/computed
@@ -15101,25 +15101,25 @@ enifed('@ember/object/lib/computed/computed_macros', ['exports', 'ember-metal',
   /**
     A computed property which performs a logical `or` on the
     original values for the provided dependent properties.
-  
+
     You may pass in more than two properties and even use
     property brace expansion.  The computed property will
     return the first truthy value or last falsy value just
     like JavaScript's `||` operator.
-  
+
     Example
-  
+
     ```javascript
     import { or } from '@ember/object/computed';
     import EmberObject from '@ember/object';
-  
+
     let Hamster = EmberObject.extend({
       readyForRain: or('hasJacket', 'hasUmbrella'),
       readyForBeach: or('{hasSunscreen,hasUmbrella}')
     });
-  
+
     let tomster = Hamster.create();
-  
+
     tomster.get('readyForRain'); // undefined
     tomster.set('hasUmbrella', true);
     tomster.get('readyForRain'); // true
@@ -15128,7 +15128,7 @@ enifed('@ember/object/lib/computed/computed_macros', ['exports', 'ember-metal',
     tomster.set('hasSunscreen', 'Check');
     tomster.get('readyForBeach'); // 'Check'
     ```
-  
+
     @method or
     @static
     @for @ember/object/computed
@@ -15145,25 +15145,25 @@ enifed('@ember/object/lib/computed/computed_macros', ['exports', 'ember-metal',
     Creates a new property that is an alias for another property
     on an object. Calls to `get` or `set` this property behave as
     though they were called on the original property.
-  
+
     ```javascript
     import { alias } from '@ember/object/computed';
     import EmberObject from '@ember/object';
-  
+
     let Person = EmberObject.extend({
       name: 'Alex Matchneer',
       nomen: alias('name')
     });
-  
+
     let alex = Person.create();
-  
+
     alex.get('nomen'); // 'Alex Matchneer'
     alex.get('name');  // 'Alex Matchneer'
-  
+
     alex.set('nomen', '@machty');
     alex.get('name');  // '@machty'
     ```
-  
+
     @method alias
     @static
     @for @ember/object/computed
@@ -15179,29 +15179,29 @@ enifed('@ember/object/lib/computed/computed_macros', ['exports', 'ember-metal',
     not mutate the upstream property, rather causes the current property to
     become the value set. This causes the downstream property to permanently
     diverge from the upstream property.
-  
+
     Example
-  
+
     ```javascript
     import { oneWay } from '@ember/object/computed';
     import EmberObject from '@ember/object';
-  
+
     let User = EmberObject.extend({
       firstName: null,
       lastName: null,
       nickName: oneWay('firstName')
     });
-  
+
     let teddy = User.create({
       firstName: 'Teddy',
       lastName: 'Zeenny'
     });
-  
+
     teddy.get('nickName');              // 'Teddy'
     teddy.set('nickName', 'TeddyBear'); // 'TeddyBear'
     teddy.get('firstName');             // 'Teddy'
     ```
-  
+
     @method oneWay
     @static
     @for @ember/object/computed
@@ -15217,7 +15217,7 @@ enifed('@ember/object/lib/computed/computed_macros', ['exports', 'ember-metal',
   /**
     This is a more semantically meaningful alias of `computed.oneWay`,
     whose name is somewhat ambiguous as to which direction the data flows.
-  
+
     @method reads
     @static
     @for @ember/object/computed
@@ -15231,32 +15231,32 @@ enifed('@ember/object/lib/computed/computed_macros', ['exports', 'ember-metal',
     Where `computed.oneWay` provides oneWay bindings, `computed.readOnly` provides
     a readOnly one way binding. Very often when using `computed.oneWay` one does
     not also want changes to propagate back up, as they will replace the value.
-  
+
     This prevents the reverse flow, and also throws an exception when it occurs.
-  
+
     Example
-  
+
     ```javascript
     import { readOnly } from '@ember/object/computed';
     import EmberObject from '@ember/object';
-  
+
     let User = EmberObject.extend({
       firstName: null,
       lastName: null,
       nickName: readOnly('firstName')
     });
-  
+
     let teddy = User.create({
       firstName: 'Teddy',
       lastName:  'Zeenny'
     });
-  
+
     teddy.get('nickName');              // 'Teddy'
     teddy.set('nickName', 'TeddyBear'); // throws Exception
     // throw new EmberError('Cannot Set: nickName on: <User:ember27288>' );`
     teddy.get('firstName');             // 'Teddy'
     ```
-  
+
     @method readOnly
     @static
     @for @ember/object/computed
@@ -15275,24 +15275,24 @@ enifed('@ember/object/lib/computed/computed_macros', ['exports', 'ember-metal',
     on an object. Calls to `get` or `set` this property behave as
     though they were called on the original property, but also
     print a deprecation warning.
-  
+
     ```javascript
     import { deprecatingAlias } from '@ember/object/computed';
     import EmberObject from '@ember/object';
-  
+
     let Hamster = EmberObject.extend({
       bananaCount: deprecatingAlias('cavendishCount', {
         id: 'hamster.deprecate-banana',
         until: '3.0.0'
       })
     });
-  
+
     let hamster = Hamster.create();
-  
+
     hamster.set('bananaCount', 5); // Prints a deprecation warning.
     hamster.get('cavendishCount'); // 5
     ```
-  
+
     @method deprecatingAlias
     @static
     @for @ember/object/computed
@@ -15401,7 +15401,7 @@ enifed('@ember/object/lib/computed/reduce_computed_macros', ['exports', '@ember/
   /**
     A computed property that returns the sum of the values
     in the dependent array.
-  
+
     @method sum
     @for @ember/object/computed
     @static
@@ -15420,18 +15420,18 @@ enifed('@ember/object/lib/computed/reduce_computed_macros', ['exports', '@ember/
     A computed property that calculates the maximum value in the
     dependent array. This will return `-Infinity` when the dependent
     array is empty.
-  
+
     ```javascript
     import { mapBy, max } from '@ember/object/computed';
     import EmberObject from '@ember/object';
-  
+
     let Person = EmberObject.extend({
       childAges: mapBy('children', 'age'),
       maxChildAge: max('childAges')
     });
-  
+
     let lordByron = Person.create({ children: [] });
-  
+
     lordByron.get('maxChildAge'); // -Infinity
     lordByron.get('children').pushObject({
       name: 'Augusta Ada Byron', age: 7
@@ -15446,14 +15446,14 @@ enifed('@ember/object/lib/computed/reduce_computed_macros', ['exports', '@ember/
     }]);
     lordByron.get('maxChildAge'); // 8
     ```
-  
+
     If the types of the arguments are not numbers,
     they will be converted to numbers and the type
     of the return value will always be `Number`.
     For example, the max of a list of Date objects will be
     the highest timestamp as a `Number`.
     This behavior is consistent with `Math.max`.
-  
+
     @method max
     @for @ember/object/computed
     @static
@@ -15471,18 +15471,18 @@ enifed('@ember/object/lib/computed/reduce_computed_macros', ['exports', '@ember/
     A computed property that calculates the minimum value in the
     dependent array. This will return `Infinity` when the dependent
     array is empty.
-  
+
     ```javascript
     import { mapBy, min } from '@ember/object/computed';
     import EmberObject from '@ember/object';
-  
+
     let Person = EmberObject.extend({
       childAges: mapBy('children', 'age'),
       minChildAge: min('childAges')
     });
-  
+
     let lordByron = Person.create({ children: [] });
-  
+
     lordByron.get('minChildAge'); // Infinity
     lordByron.get('children').pushObject({
       name: 'Augusta Ada Byron', age: 7
@@ -15497,14 +15497,14 @@ enifed('@ember/object/lib/computed/reduce_computed_macros', ['exports', '@ember/
     }]);
     lordByron.get('minChildAge'); // 5
     ```
-  
+
     If the types of the arguments are not numbers,
     they will be converted to numbers and the type
     of the return value will always be `Number`.
     For example, the min of a list of Date objects will be
     the lowest timestamp as a `Number`.
     This behavior is consistent with `Math.min`.
-  
+
     @method min
     @for @ember/object/computed
     @static
@@ -15520,34 +15520,34 @@ enifed('@ember/object/lib/computed/reduce_computed_macros', ['exports', '@ember/
 
   /**
     Returns an array mapped via the callback
-  
+
     The callback method you provide should have the following signature.
     `item` is the current item in the iteration.
     `index` is the integer index of the current item in the iteration.
-  
+
     ```javascript
     function(item, index);
     ```
-  
+
     Example
-  
+
     ```javascript
     import { map } from '@ember/object/computed';
     import EmberObject from '@ember/object';
-  
+
     let Hamster = EmberObject.extend({
       excitingChores: map('chores', function(chore, index) {
         return chore.toUpperCase() + '!';
       })
     });
-  
+
     let hamster = Hamster.create({
       chores: ['clean', 'write more unit tests']
     });
-  
+
     hamster.get('excitingChores'); // ['CLEAN!', 'WRITE MORE UNIT TESTS!']
     ```
-  
+
     @method map
     @for @ember/object/computed
     @static
@@ -15564,17 +15564,17 @@ enifed('@ember/object/lib/computed/reduce_computed_macros', ['exports', '@ember/
 
   /**
     Returns an array mapped to the specified key.
-  
+
     ```javascript
     import { mapBy } from '@ember/object/computed';
     import EmberObject from '@ember/object';
-  
+
     let Person = EmberObject.extend({
       childAges: mapBy('children', 'age')
     });
-  
+
     let lordByron = Person.create({ children: [] });
-  
+
     lordByron.get('childAges'); // []
     lordByron.get('children').pushObject({ name: 'Augusta Ada Byron', age: 7 });
     lordByron.get('childAges'); // [7]
@@ -15587,7 +15587,7 @@ enifed('@ember/object/lib/computed/reduce_computed_macros', ['exports', '@ember/
     }]);
     lordByron.get('childAges'); // [7, 5, 8]
     ```
-  
+
     @method mapBy
     @for @ember/object/computed
     @static
@@ -15608,26 +15608,26 @@ enifed('@ember/object/lib/computed/reduce_computed_macros', ['exports', '@ember/
 
   /**
     Filters the array by the callback.
-  
+
     The callback method you provide should have the following signature.
     `item` is the current item in the iteration.
     `index` is the integer index of the current item in the iteration.
     `array` is the dependant array itself.
-  
+
     ```javascript
     function(item, index, array);
     ```
-  
+
     ```javascript
     import { filter } from '@ember/object/computed';
     import EmberObject from '@ember/object';
-  
+
     let Hamster = EmberObject.extend({
       remainingChores: filter('chores', function(chore, index, array) {
         return !chore.done;
       })
     });
-  
+
     let hamster = Hamster.create({
       chores: [
         { name: 'cook', done: true },
@@ -15635,23 +15635,23 @@ enifed('@ember/object/lib/computed/reduce_computed_macros', ['exports', '@ember/
         { name: 'write more unit tests', done: false }
       ]
     });
-  
+
     hamster.get('remainingChores'); // [{name: 'write more unit tests', done: false}]
     ```
-  
+
     You can also use `@each.property` in your dependent key, the callback will still use the underlying array:
-  
+
     ```javascript
     import { A } from '@ember/array';
     import { filter } from '@ember/object/computed';
     import EmberObject from '@ember/object';
-  
+
     let Hamster = EmberObject.extend({
       remainingChores: filter('chores.@each.done', function(chore, index, array) {
         return !chore.get('done');
       })
     });
-  
+
     let hamster = Hamster.create({
       chores: A([
         EmberObject.create({ name: 'cook', done: true }),
@@ -15663,8 +15663,8 @@ enifed('@ember/object/lib/computed/reduce_computed_macros', ['exports', '@ember/
     hamster.get('chores').objectAt(2).set('done', true);
     hamster.get('remainingChores'); // []
     ```
-  
-  
+
+
     @method filter
     @for @ember/object/computed
     @static
@@ -15681,15 +15681,15 @@ enifed('@ember/object/lib/computed/reduce_computed_macros', ['exports', '@ember/
 
   /**
     Filters the array by the property and value
-  
+
     ```javascript
     import { filterBy } from '@ember/object/computed';
     import EmberObject from '@ember/object';
-  
+
     let Hamster = EmberObject.extend({
       remainingChores: filterBy('chores', 'done', false)
     });
-  
+
     let hamster = Hamster.create({
       chores: [
         { name: 'cook', done: true },
@@ -15697,10 +15697,10 @@ enifed('@ember/object/lib/computed/reduce_computed_macros', ['exports', '@ember/
         { name: 'write more unit tests', done: false }
       ]
     });
-  
+
     hamster.get('remainingChores'); // [{ name: 'write more unit tests', done: false }]
     ```
-  
+
     @method filterBy
     @for @ember/object/computed
     @static
@@ -15731,17 +15731,17 @@ enifed('@ember/object/lib/computed/reduce_computed_macros', ['exports', '@ember/
   /**
     A computed property which returns a new array with all the unique
     elements from one or more dependent arrays.
-  
+
     Example
-  
+
     ```javascript
     import { uniq } from '@ember/object/computed';
     import EmberObject from '@ember/object';
-  
+
     let Hamster = EmberObject.extend({
       uniqueFruits: uniq('fruits')
     });
-  
+
     let hamster = Hamster.create({
       fruits: [
         'banana',
@@ -15750,10 +15750,10 @@ enifed('@ember/object/lib/computed/reduce_computed_macros', ['exports', '@ember/
         'banana'
       ]
     });
-  
+
     hamster.get('uniqueFruits'); // ['banana', 'grape', 'kale']
     ```
-  
+
     @method uniq
     @for @ember/object/computed
     @static
@@ -15792,13 +15792,13 @@ enifed('@ember/object/lib/computed/reduce_computed_macros', ['exports', '@ember/
   /**
     A computed property which returns a new array with all the unique
     elements from an array, with uniqueness determined by specific key.
-  
+
     Example
-  
+
     ```javascript
     import { uniqBy } from '@ember/object/computed';
     import EmberObject from '@ember/object';
-  
+
     let Hamster = EmberObject.extend({
       uniqueFruits: uniqBy('fruits', 'id')
     });
@@ -15812,7 +15812,7 @@ enifed('@ember/object/lib/computed/reduce_computed_macros', ['exports', '@ember/
     });
     hamster.get('uniqueFruits'); // [ { id: 1, 'banana' }, { id: 2, 'grape' }, { id: 3, 'peach' }]
     ```
-  
+
     @method uniqBy
     @for @ember/object/computed
     @static
@@ -15837,17 +15837,17 @@ enifed('@ember/object/lib/computed/reduce_computed_macros', ['exports', '@ember/
   /**
     A computed property which returns a new array with all the unique
     elements from one or more dependent arrays.
-  
+
     Example
-  
+
     ```javascript
     import { union } from '@ember/object/computed';
     import EmberObject from '@ember/object';
-  
+
     let Hamster = EmberObject.extend({
       uniqueFruits: union('fruits', 'vegetables')
     });
-  
+
     let hamster = Hamster.create({
       fruits: [
         'banana',
@@ -15862,10 +15862,10 @@ enifed('@ember/object/lib/computed/reduce_computed_macros', ['exports', '@ember/
         'lettuce'
       ]
     });
-  
+
     hamster.get('uniqueFruits'); // ['banana', 'grape', 'kale', 'tomato', 'carrot', 'lettuce']
     ```
-  
+
     @method union
     @for @ember/object/computed
     @static
@@ -15879,23 +15879,23 @@ enifed('@ember/object/lib/computed/reduce_computed_macros', ['exports', '@ember/
   /**
     A computed property which returns a new array with all the elements
     two or more dependent arrays have in common.
-  
+
     Example
-  
+
     ```javascript
     import { intersect } from '@ember/object/computed';
     import EmberObject from '@ember/object';
-  
+
     let obj = EmberObject.extend({
       friendsInCommon: intersect('adaFriends', 'charlesFriends')
     }).create({
       adaFriends: ['Charles Babbage', 'John Hobhouse', 'William King', 'Mary Somerville'],
       charlesFriends: ['William King', 'Mary Somerville', 'Ada Lovelace', 'George Peacock']
     });
-  
+
     obj.get('friendsInCommon'); // ['William King', 'Mary Somerville']
     ```
-  
+
     @method intersect
     @for @ember/object/computed
     @static
@@ -15944,28 +15944,28 @@ enifed('@ember/object/lib/computed/reduce_computed_macros', ['exports', '@ember/
     A computed property which returns a new array with all the
     properties from the first dependent array that are not in the second
     dependent array.
-  
+
     Example
-  
+
     ```javascript
     import { setDiff } from '@ember/object/computed';
     import EmberObject from '@ember/object';
-  
+
     let Hamster = EmberObject.extend({
       likes: ['banana', 'grape', 'kale'],
       wants: setDiff('likes', 'fruits')
     });
-  
+
     let hamster = Hamster.create({
       fruits: [
         'grape',
         'kale',
       ]
     });
-  
+
     hamster.get('wants'); // ['banana']
     ```
-  
+
     @method setDiff
     @for @ember/object/computed
     @static
@@ -16006,25 +16006,25 @@ enifed('@ember/object/lib/computed/reduce_computed_macros', ['exports', '@ember/
   /**
     A computed property that returns the array of values
     for the provided dependent properties.
-  
+
     Example
-  
+
     ```javascript
     import { collect } from '@ember/object/computed';
     import EmberObject from '@ember/object';
-  
+
     let Hamster = EmberObject.extend({
       clothes: collect('hat', 'shirt')
     });
-  
+
     let hamster = Hamster.create();
-  
+
     hamster.get('clothes'); // [null, null]
     hamster.set('hat', 'Camp Hat');
     hamster.set('shirt', 'Camp Shirt');
     hamster.get('clothes'); // ['Camp Hat', 'Camp Shirt']
     ```
-  
+
     @method collect
     @for @ember/object/computed
     @static
@@ -16058,38 +16058,38 @@ enifed('@ember/object/lib/computed/reduce_computed_macros', ['exports', '@ember/
     A computed property which returns a new array with all the
     properties from the first dependent array sorted based on a property
     or sort function.
-  
+
     The callback method you provide should have the following signature:
-  
+
     ```javascript
     function(itemA, itemB);
     ```
-  
+
     - `itemA` the first item to compare.
     - `itemB` the second item to compare.
-  
+
     This function should return negative number (e.g. `-1`) when `itemA` should come before
     `itemB`. It should return positive number (e.g. `1`) when `itemA` should come after
     `itemB`. If the `itemA` and `itemB` are equal this function should return `0`.
-  
+
     Therefore, if this function is comparing some numeric values, simple `itemA - itemB` or
     `itemA.get( 'foo' ) - itemB.get( 'foo' )` can be used instead of series of `if`.
-  
+
     Example
-  
+
     ```javascript
     import { sort } from '@ember/object/computed';
     import EmberObject from '@ember/object';
-  
+
     let ToDoList = EmberObject.extend({
       // using standard ascending sort
       todosSorting: Object.freeze(['name']),
       sortedTodos: sort('todos', 'todosSorting'),
-  
+
       // using descending sort
       todosSortingDesc: Object.freeze(['name:desc']),
       sortedTodosDesc: sort('todos', 'todosSortingDesc'),
-  
+
       // using a custom sort function
       priorityTodos: sort('todos', function(a, b){
         if (a.priority > b.priority) {
@@ -16097,22 +16097,22 @@ enifed('@ember/object/lib/computed/reduce_computed_macros', ['exports', '@ember/
         } else if (a.priority < b.priority) {
           return -1;
         }
-  
+
         return 0;
       })
     });
-  
+
     let todoList = ToDoList.create({todos: [
       { name: 'Unit Test', priority: 2 },
       { name: 'Documentation', priority: 3 },
       { name: 'Release', priority: 1 }
     ]});
-  
+
     todoList.get('sortedTodos');      // [{ name:'Documentation', priority:3 }, { name:'Release', priority:1 }, { name:'Unit Test', priority:2 }]
     todoList.get('sortedTodosDesc');  // [{ name:'Unit Test', priority:2 }, { name:'Release', priority:1 }, { name:'Documentation', priority:3 }]
     todoList.get('priorityTodos');    // [{ name:'Release', priority:1 }, { name:'Unit Test', priority:2 }, { name:'Documentation', priority:3 }]
     ```
-  
+
     @method sort
     @for @ember/object/computed
     @static
@@ -16267,16 +16267,16 @@ enifed("@ember/polyfills/lib/assign", ["exports"], function (exports) {
     */
     /**
       Copy properties from a source object to a target object.
-    
+
       ```javascript
       import { assign } from '@ember/polyfills';
-    
+
       var a = { first: 'Yehuda' };
       var b = { last: 'Katz' };
       var c = { company: 'Tilde Inc.' };
       assign(a, b, c); // a === { first: 'Yehuda', last: 'Katz', company: 'Tilde Inc.' }, b === { last: 'Katz' }, c === { company: 'Tilde Inc.' }
       ```
-    
+
       @method assign
       @for @ember/polyfills
       @param {Object} target The object to assign into
@@ -16315,16 +16315,16 @@ enifed('@ember/polyfills/lib/merge', ['exports'], function (exports) {
     */
     /**
       Merge the contents of two objects together into the first object.
-    
+
       ```javascript
       import { merge } from '@ember/polyfills';
-    
+
       merge({ first: 'Tom' }, { last: 'Dale' }); // { first: 'Tom', last: 'Dale' }
       var a = { first: 'Yehuda' };
       var b = { last: 'Katz' };
       merge(a, b); // a == { first: 'Yehuda', last: 'Katz' }, b == { last: 'Katz' }
       ```
-    
+
       @method merge
       @static
       @for @ember/polyfills
@@ -16387,7 +16387,7 @@ enifed('@ember/runloop/index', ['exports', '@ember/debug', 'ember-error-handling
     are flushed at the end of the RunLoop. You can define your own queues by
     simply adding the queue name to this array. Normally you should not need
     to inspect or modify this property.
-  
+
     @property queues
     @type Array
     @default ['actions', 'destroy']
@@ -16433,15 +16433,15 @@ enifed('@ember/runloop/index', ['exports', '@ember/debug', 'ember-error-handling
     Runs the passed target and method inside of a RunLoop, ensuring any
     deferred actions including bindings and views updates are flushed at the
     end.
-  
+
     Normally you should not need to invoke this method yourself. However if
     you are implementing raw event handlers when interfacing with other
     libraries or plugins, you should probably wrap all of your code inside this
     call.
-  
+
     ```javascript
     import { run } from '@ember/runloop';
-  
+
     run(function() {
       // code to be executed within a RunLoop
     });
@@ -16468,34 +16468,34 @@ enifed('@ember/runloop/index', ['exports', '@ember/debug', 'ember-error-handling
     If no run-loop is present, it creates a new one. If a run loop is
     present it will queue itself to run on the existing run-loops action
     queue.
-  
+
     Please note: This is not for normal usage, and should be used sparingly.
-  
+
     If invoked when not within a run loop:
-  
+
     ```javascript
     import { join } from '@ember/runloop';
-  
+
     join(function() {
       // creates a new run-loop
     });
     ```
-  
+
     Alternatively, if called within an existing run loop:
-  
+
     ```javascript
     import { run, join } from '@ember/runloop';
-  
+
     run(function() {
       // creates a new run-loop
-  
+
       join(function() {
         // joins with the existing run-loop, and queues for invocation on
         // the existing run-loops action queue.
       });
     });
     ```
-  
+
     @method join
     @static
     @for @ember/runloop
@@ -16517,22 +16517,22 @@ enifed('@ember/runloop/index', ['exports', '@ember/debug', 'ember-error-handling
     adding the execution of that function to the Ember run loop. This ability
     makes this method a great way to asynchronously integrate third-party libraries
     into your Ember application.
-  
+
     `bind` takes two main arguments, the desired context and the function to
     invoke in that context. Any additional arguments will be supplied as arguments
     to the function that is passed in.
-  
+
     Let's use the creation of a TinyMCE component as an example. Currently,
     TinyMCE provides a setup configuration option we can use to do some processing
     after the TinyMCE instance is initialized but before it is actually rendered.
     We can use that setup option to do some additional setup for our component.
     The component itself could look something like the following:
-  
+
     ```app/components/rich-text-editor.js
     import Component from '@ember/component';
     import { on } from '@ember/object/evented';
     import { bind } from '@ember/runloop';
-  
+
     export default Component.extend({
       initializeTinyMCE: on('didInsertElement', function() {
         tinymce.init({
@@ -16540,28 +16540,28 @@ enifed('@ember/runloop/index', ['exports', '@ember/debug', 'ember-error-handling
           setup: bind(this, this.setupEditor)
         });
       }),
-  
+
       didInsertElement() {
         tinymce.init({
           selector: '#' + this.$().prop('id'),
           setup: bind(this, this.setupEditor)
         });
       }
-  
+
       setupEditor(editor) {
         this.set('editor', editor);
-  
+
         editor.on('change', function() {
           console.log('content changed!');
         });
       }
     });
     ```
-  
+
     In this example, we use `bind` to bind the setupEditor method to the
     context of the RichTextEditor component and to have the invocation of that
     method be safely handled and executed by the Ember run loop.
-  
+
     @method bind
     @static
     @for @ember/runloop
@@ -16618,15 +16618,15 @@ enifed('@ember/runloop/index', ['exports', '@ember/debug', 'ember-error-handling
     Begins a new RunLoop. Any deferred actions invoked after the begin will
     be buffered until you invoke a matching call to `end()`. This is
     a lower-level way to use a RunLoop instead of using `run()`.
-  
+
     ```javascript
     import { begin, end } from '@ember/runloop';
-  
+
     begin();
     // code to be executed within a RunLoop
     end();
     ```
-  
+
     @method begin
     @static
     @for @ember/runloop
@@ -16641,15 +16641,15 @@ enifed('@ember/runloop/index', ['exports', '@ember/debug', 'ember-error-handling
     Ends a RunLoop. This must be called sometime after you call
     `begin()` to flush any deferred actions. This is a lower-level way
     to use a RunLoop instead of using `run()`.
-  
+
     ```javascript
     import { begin, end } from '@ember/runloop';
-  
+
     begin();
     // code to be executed within a RunLoop
     end();
     ```
-  
+
     @method end
     @static
     @for @ember/runloop
@@ -16665,25 +16665,25 @@ enifed('@ember/runloop/index', ['exports', '@ember/debug', 'ember-error-handling
     queue to be executed at the end of the RunLoop. If you have not already
     started a RunLoop when calling this method one will be started for you
     automatically.
-  
+
     At the end of a RunLoop, any methods scheduled in this way will be invoked.
     Methods will be invoked in an order matching the named queues defined in
     the `queues` property.
-  
+
     ```javascript
     import { schedule } from '@ember/runloop';
-  
+
     schedule('actions', this, function() {
       // this will be executed in the 'actions' queue, after bindings have synced.
       console.log('scheduled on actions queue');
     });
-  
+
     // Note the functions will be run in order based on the run queues order.
     // Output would be:
     //   scheduled on sync queue
     //   scheduled on actions queue
     ```
-  
+
     @method schedule
     @static
     @for @ember/runloop
@@ -16720,20 +16720,20 @@ enifed('@ember/runloop/index', ['exports', '@ember/debug', 'ember-error-handling
     Invokes the passed target/method and optional arguments after a specified
     period of time. The last parameter of this method must always be a number
     of milliseconds.
-  
+
     You should use this method whenever you need to run some action after a
     period of time instead of using `setTimeout()`. This method will ensure that
     items that expire during the same script execution cycle all execute
     together, which is often more efficient than using a real setTimeout.
-  
+
     ```javascript
     import { later } from '@ember/runloop';
-  
+
     later(myContext, function() {
       // code here will execute within a RunLoop in about 500ms with this == myContext
     }, 500);
     ```
-  
+
     @method later
     @static
     @for @ember/runloop
@@ -16753,7 +16753,7 @@ enifed('@ember/runloop/index', ['exports', '@ember/debug', 'ember-error-handling
   /**
    Schedule a function to run one time during the current RunLoop. This is equivalent
     to calling `scheduleOnce` with the "actions" queue.
-  
+
     @method once
     @static
     @for @ember/runloop
@@ -16778,62 +16778,62 @@ enifed('@ember/runloop/index', ['exports', '@ember/debug', 'ember-error-handling
     Schedules a function to run one time in a given queue of the current RunLoop.
     Calling this method with the same queue/target/method combination will have
     no effect (past the initial call).
-  
+
     Note that although you can pass optional arguments these will not be
     considered when looking for duplicates. New arguments will replace previous
     calls.
-  
+
     ```javascript
     import { run, scheduleOnce } from '@ember/runloop';
-  
+
     function sayHi() {
       console.log('hi');
     }
-  
+
     run(function() {
       scheduleOnce('afterRender', myContext, sayHi);
       scheduleOnce('afterRender', myContext, sayHi);
       // sayHi will only be executed once, in the afterRender queue of the RunLoop
     });
     ```
-  
+
     Also note that for `scheduleOnce` to prevent additional calls, you need to
     pass the same function instance. The following case works as expected:
-  
+
     ```javascript
     function log() {
       console.log('Logging only once');
     }
-  
+
     function scheduleIt() {
       scheduleOnce('actions', myContext, log);
     }
-  
+
     scheduleIt();
     scheduleIt();
     ```
-  
+
     But this other case will schedule the function multiple times:
-  
+
     ```javascript
     import { scheduleOnce } from '@ember/runloop';
-  
+
     function scheduleIt() {
       scheduleOnce('actions', myContext, function() {
         console.log('Closure');
       });
     }
-  
+
     scheduleIt();
     scheduleIt();
-  
+
     // "Closure" will print twice, even though we're using `scheduleOnce`,
     // because the function we pass to it won't match the
     // previously scheduled operation.
     ```
-  
+
     Available queues, and their order, can be found at `queues`
-  
+
     @method scheduleOnce
     @static
     @for @ember/runloop
@@ -16859,40 +16859,40 @@ enifed('@ember/runloop/index', ['exports', '@ember/debug', 'ember-error-handling
     Schedules an item to run from within a separate run loop, after
     control has been returned to the system. This is equivalent to calling
     `later` with a wait time of 1ms.
-  
+
     ```javascript
     import { next } from '@ember/runloop';
-  
+
     next(myContext, function() {
       // code to be executed in the next run loop,
       // which will be scheduled after the current one
     });
     ```
-  
+
     Multiple operations scheduled with `next` will coalesce
     into the same later run loop, along with any other operations
     scheduled by `later` that expire right around the same
     time that `next` operations will fire.
-  
+
     Note that there are often alternatives to using `next`.
     For instance, if you'd like to schedule an operation to happen
     after all DOM element operations have completed within the current
     run loop, you can make use of the `afterRender` run loop queue (added
     by the `ember-views` package, along with the preceding `render` queue
     where all the DOM element operations happen).
-  
+
     Example:
-  
+
     ```app/components/my-component.js
     import Component from '@ember/component';
     import { scheduleOnce } from '@ember/runloop';
-  
+
     export Component.extend({
       didInsertElement() {
         this._super(...arguments);
         scheduleOnce('afterRender', this, 'processChildElements');
       },
-  
+
       processChildElements() {
         // ... do something with component's child component
         // elements after they've finished rendering, which
@@ -16902,18 +16902,18 @@ enifed('@ember/runloop/index', ['exports', '@ember/debug', 'ember-error-handling
       }
     });
     ```
-  
+
     One benefit of the above approach compared to using `next` is
     that you will be able to perform DOM/CSS operations before unprocessed
     elements are rendered to the screen, which may prevent flickering or
     other artifacts caused by delaying processing until after rendering.
-  
+
     The other major benefit to the above approach is that `next`
     introduces an element of non-determinism, which can make things much
     harder to test, due to its reliance on `setTimeout`; it's much harder
     to guarantee the order of scheduled operations when they are scheduled
     outside of the current run loop, i.e. with `next`.
-  
+
     @method next
     @static
     @for @ember/runloop
@@ -16938,7 +16938,7 @@ enifed('@ember/runloop/index', ['exports', '@ember/debug', 'ember-error-handling
     Cancels a scheduled item. Must be a value returned by `later()`,
     `once()`, `scheduleOnce()`, `next()`, `debounce()`, or
     `throttle()`.
-  
+
     ```javascript
     import {
       next,
@@ -16949,51 +16949,51 @@ enifed('@ember/runloop/index', ['exports', '@ember/debug', 'ember-error-handling
       throttle,
       debounce
     } from '@ember/runloop';
-  
+
     let runNext = next(myContext, function() {
       // will not be executed
     });
-  
+
     cancel(runNext);
-  
+
     let runLater = later(myContext, function() {
       // will not be executed
     }, 500);
-  
+
     cancel(runLater);
-  
+
     let runScheduleOnce = scheduleOnce('afterRender', myContext, function() {
       // will not be executed
     });
-  
+
     cancel(runScheduleOnce);
-  
+
     let runOnce = once(myContext, function() {
       // will not be executed
     });
-  
+
     cancel(runOnce);
-  
+
     let throttle = throttle(myContext, function() {
       // will not be executed
     }, 1, false);
-  
+
     cancel(throttle);
-  
+
     let debounce = debounce(myContext, function() {
       // will not be executed
     }, 1);
-  
+
     cancel(debounce);
-  
+
     let debounceImmediate = debounce(myContext, function() {
       // will be executed since we passed in true (immediate)
     }, 100, true);
-  
+
     // the 100ms delay until this method can be called again will be canceled
     cancel(debounceImmediate);
     ```
-  
+
     @method cancel
     @static
     @for @ember/runloop
@@ -17010,61 +17010,61 @@ enifed('@ember/runloop/index', ['exports', '@ember/debug', 'ember-error-handling
     with no additional debounce calls. If `debounce` is called again before
     the specified time has elapsed, the timer is reset and the entire period
     must pass again before the target method is called.
-  
+
     This method should be used when an event may be called multiple times
     but the action should only be called once when the event is done firing.
     A common example is for scroll events where you only want updates to
     happen once scrolling has ceased.
-  
+
     ```javascript
     import { debounce } from '@ember/runloop';
-  
+
     function whoRan() {
       console.log(this.name + ' ran.');
     }
-  
+
     let myContext = { name: 'debounce' };
-  
+
     debounce(myContext, whoRan, 150);
-  
+
     // less than 150ms passes
     debounce(myContext, whoRan, 150);
-  
+
     // 150ms passes
     // whoRan is invoked with context myContext
     // console logs 'debounce ran.' one time.
     ```
-  
+
     Immediate allows you to run the function immediately, but debounce
     other calls for this function until the wait time has elapsed. If
     `debounce` is called again before the specified time has elapsed,
     the timer is reset and the entire period must pass again before
     the method can be called again.
-  
+
     ```javascript
     import { debounce } from '@ember/runloop';
-  
+
     function whoRan() {
       console.log(this.name + ' ran.');
     }
-  
+
     let myContext = { name: 'debounce' };
-  
+
     debounce(myContext, whoRan, 150, true);
-  
+
     // console logs 'debounce ran.' one time immediately.
     // 100ms passes
     debounce(myContext, whoRan, 150, true);
-  
+
     // 150ms passes and nothing else is logged to the console and
     // the debouncee is no longer being watched
     debounce(myContext, whoRan, 150, true);
-  
+
     // console logs 'debounce ran.' one time immediately.
     // 150ms passes and nothing else is logged to the console and
     // the debouncee is no longer being watched
     ```
-  
+
     @method debounce
     @static
     @for @ember/runloop
@@ -17086,32 +17086,32 @@ enifed('@ember/runloop/index', ['exports', '@ember/debug', 'ember-error-handling
   /**
     Ensure that the target method is never called more frequently than
     the specified spacing period. The target method is called immediately.
-  
+
     ```javascript
     import { throttle } from '@ember/runloop';
-  
+
     function whoRan() {
       console.log(this.name + ' ran.');
     }
-  
+
     let myContext = { name: 'throttle' };
-  
+
     throttle(myContext, whoRan, 150);
     // whoRan is invoked with context myContext
     // console logs 'throttle ran.'
-  
+
     // 50ms passes
     throttle(myContext, whoRan, 150);
-  
+
     // 50ms passes
     throttle(myContext, whoRan, 150);
-  
+
     // 150ms passes
     throttle(myContext, whoRan, 150);
     // whoRan is invoked with context myContext
     // console logs 'throttle ran.'
     ```
-  
+
     @method throttle
     @static
     @for @ember/runloop
@@ -17144,26 +17144,26 @@ enifed('@ember/service/index', ['exports', 'ember-runtime', 'ember-metal'], func
   /**
     Creates a property that lazily looks up a service in the container. There
     are no restrictions as to what objects a service can be injected into.
-  
+
     Example:
-  
+
     ```app/routes/application.js
     import Route from '@ember/routing/route';
     import { inject as service } from '@ember/service';
-  
+
     export default Route.extend({
       authManager: service('auth'),
-  
+
       model() {
         return this.get('authManager').findCurrentUser();
       }
     });
     ```
-  
+
     This example will create an `authManager` property on the application route
     that looks up the `auth` service in the container, making it easily
     accessible in the `model` hook.
-  
+
     @method inject
     @static
     @since 1.10.0
@@ -17266,7 +17266,7 @@ enifed('@ember/string/index', ['exports', '@ember/string/lib/string_registry', '
       Defines string helper methods including string formatting and localization.
       Unless `EmberENV.EXTEND_PROTOTYPES.String` is `false` these methods will also be
       added to the `String.prototype` as well.
-    
+
       @class String
       @public
     */
@@ -17282,23 +17282,23 @@ enifed('@ember/string/index', ['exports', '@ember/string/lib/string_registry', '
     /**
       Formats the passed string, but first looks up the string in the localized
       strings hash. This is a convenient way to localize text.
-    
+
       Note that it is traditional but not required to prefix localized string
       keys with an underscore or other character so you can easily identify
       localized strings.
-    
+
       ```javascript
       import { loc } from '@ember/string';
-    
+
       Ember.STRINGS = {
         '_Hello World': 'Bonjour le monde',
         '_Hello %@ %@': 'Bonjour %@ %@'
       };
-    
+
       loc("_Hello World");  // 'Bonjour le monde';
       loc("_Hello %@ %@", ["John", "Smith"]);  // "Bonjour John Smith";
       ```
-    
+
       @method loc
       @param {String} str The string to format
       @param {Array} formats Optional array of parameters to interpolate into string.
@@ -17316,19 +17316,19 @@ enifed('@ember/string/index', ['exports', '@ember/string/lib/string_registry', '
       Splits a string into separate units separated by spaces, eliminating any
       empty strings in the process. This is a convenience method for split that
       is mostly useful when applied to the `String.prototype`.
-    
+
       ```javascript
       import { w } from '@ember/string';
-    
+
       w("alpha beta gamma").forEach(function(key) {
         console.log(key);
       });
-    
+
       // > alpha
       // > beta
       // > gamma
       ```
-    
+
       @method w
       @param {String} str The string to split
       @return {Array} array containing the split strings
@@ -17339,14 +17339,14 @@ enifed('@ember/string/index', ['exports', '@ember/string/lib/string_registry', '
     }
     /**
       Converts a camelized string into all lower case separated by underscores.
-    
+
       ```javascript
       'innerHTML'.decamelize();           // 'inner_html'
       'action_name'.decamelize();        // 'action_name'
       'css-class-name'.decamelize();     // 'css-class-name'
       'my favorite items'.decamelize();  // 'my favorite items'
       ```
-    
+
       @method decamelize
       @param {String} str The string to decamelize.
       @return {String} the decamelized string.
@@ -17357,7 +17357,7 @@ enifed('@ember/string/index', ['exports', '@ember/string/lib/string_registry', '
     }
     /**
       Replaces underscores, spaces, or camelCase with dashes.
-    
+
       ```javascript
       'innerHTML'.dasherize();          // 'inner-html'
       'action_name'.dasherize();        // 'action-name'
@@ -17365,7 +17365,7 @@ enifed('@ember/string/index', ['exports', '@ember/string/lib/string_registry', '
       'my favorite items'.dasherize();  // 'my-favorite-items'
       'privateDocs/ownerInvoice'.dasherize(); // 'private-docs/owner-invoice'
       ```
-    
+
       @method dasherize
       @param {String} str The string to dasherize.
       @return {String} the dasherized string.
@@ -17376,7 +17376,7 @@ enifed('@ember/string/index', ['exports', '@ember/string/lib/string_registry', '
     }
     /**
       Returns the lowerCamelCase form of a string.
-    
+
       ```javascript
       'innerHTML'.camelize();          // 'innerHTML'
       'action_name'.camelize();        // 'actionName'
@@ -17385,7 +17385,7 @@ enifed('@ember/string/index', ['exports', '@ember/string/lib/string_registry', '
       'My Favorite Items'.camelize();  // 'myFavoriteItems'
       'private-docs/owner-invoice'.camelize(); // 'privateDocs/ownerInvoice'
       ```
-    
+
       @method camelize
       @param {String} str The string to camelize.
       @return {String} the camelized string.
@@ -17396,7 +17396,7 @@ enifed('@ember/string/index', ['exports', '@ember/string/lib/string_registry', '
     }
     /**
       Returns the UpperCamelCase form of a string.
-    
+
       ```javascript
       'innerHTML'.classify();          // 'InnerHTML'
       'action_name'.classify();        // 'ActionName'
@@ -17404,7 +17404,7 @@ enifed('@ember/string/index', ['exports', '@ember/string/lib/string_registry', '
       'my favorite items'.classify();  // 'MyFavoriteItems'
       'private-docs/owner-invoice'.classify(); // 'PrivateDocs/OwnerInvoice'
       ```
-    
+
       @method classify
       @param {String} str the string to classify
       @return {String} the classified string
@@ -17416,7 +17416,7 @@ enifed('@ember/string/index', ['exports', '@ember/string/lib/string_registry', '
     /**
       More general than decamelize. Returns the lower\_case\_and\_underscored
       form of a string.
-    
+
       ```javascript
       'innerHTML'.underscore();          // 'inner_html'
       'action_name'.underscore();        // 'action_name'
@@ -17424,7 +17424,7 @@ enifed('@ember/string/index', ['exports', '@ember/string/lib/string_registry', '
       'my favorite items'.underscore();  // 'my_favorite_items'
       'privateDocs/ownerInvoice'.underscore(); // 'private_docs/owner_invoice'
       ```
-    
+
       @method underscore
       @param {String} str The string to underscore.
       @return {String} the underscored string.
@@ -17435,7 +17435,7 @@ enifed('@ember/string/index', ['exports', '@ember/string/lib/string_registry', '
     }
     /**
       Returns the Capitalized form of a string
-    
+
       ```javascript
       'innerHTML'.capitalize()         // 'InnerHTML'
       'action_name'.capitalize()       // 'Action_name'
@@ -17443,7 +17443,7 @@ enifed('@ember/string/index', ['exports', '@ember/string/lib/string_registry', '
       'my favorite items'.capitalize() // 'My favorite items'
       'privateDocs/ownerInvoice'.capitalize(); // 'PrivateDocs/ownerInvoice'
       ```
-    
+
       @method capitalize
       @param {String} str The string to capitalize.
       @return {String} The capitalized string.
@@ -28358,14 +28358,14 @@ enifed('container', ['exports', 'ember-babel', '@ember/debug', '@ember/polyfills
     }
     /**
      A container used to instantiate and cache objects.
-    
+
      Every `Container` must be associated with a `Registry`, which is referenced
      to determine the factory and options that should be used to instantiate
      objects.
-    
+
      The public API for `Container` is still in flux and should not be considered
      stable.
-    
+
      @private
      @class Container
      */
@@ -28764,12 +28764,12 @@ enifed('container', ['exports', 'ember-babel', '@ember/debug', '@ember/polyfills
     /**
      A registry used to store factory and option information keyed
      by type.
-    
+
      A `Registry` stores the factory and option information needed by a
      `Container` to instantiate and cache objects.
-    
+
      The API for `Registry` is still in flux and should not be considered stable.
-    
+
      @private
      @class Registry
      @since 1.11.0
@@ -29485,10 +29485,10 @@ enifed('ember-console/index', ['exports', '@ember/debug', '@ember/deprecated-fea
   /**
     Inside Ember-Metal, simply uses the methods from `imports.console`.
     Override this to provide more robust logging functionality.
-  
+
     @class Logger
     @deprecated Use 'console' instead
-  
+
     @namespace Ember
     @public
   */
@@ -29613,7 +29613,7 @@ enifed('ember-environment', ['exports'], function (exports) {
       desired properties to a global hash named `EmberENV` (or `ENV` for
       backwards compatibility with earlier versions of Ember). The `EmberENV`
       hash must be created before loading Ember.
-    
+
       @class EmberENV
       @type Object
       @public
@@ -30415,39 +30415,39 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
     /**
       Ember Helpers are functions that can compute values, and are used in templates.
       For example, this code calls a helper named `format-currency`:
-    
+
       ```handlebars
       <div>{{format-currency cents currency="$"}}</div>
       ```
-    
+
       Additionally a helper can be called as a nested helper (sometimes called a
       subexpression). In this example, the computed value of a helper is passed
       to a component named `show-money`:
-    
+
       ```handlebars
       {{show-money amount=(format-currency cents currency="$")}}
       ```
-    
+
       Helpers defined using a class must provide a `compute` function. For example:
-    
+
       ```app/helpers/format-currency.js
       import Helper from '@ember/component/helper';
-    
+
       export default Helper.extend({
         compute([cents], { currency }) {
           return `${currency}${cents * 0.01}`;
         }
       });
       ```
-    
+
       Each time the input to a helper changes, the `compute` function will be
       called again.
-    
+
       As instances, these helpers also have access to the container and will accept
       injected dependencies.
-    
+
       Additionally, class helpers can call `recompute` to force a new computation.
-    
+
       @class Helper
       @public
       @since 1.13.0
@@ -30485,17 +30485,17 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
       In many cases, the ceremony of a full `Helper` class is not required.
       The `helper` method create pure-function helpers without instances. For
       example:
-    
+
       ```app/helpers/format-currency.js
       import { helper } from '@ember/component/helper';
-    
+
       export default helper(function(params, hash) {
         let cents = params[0];
         let currency = hash.currency;
         return `${currency}${cents * 0.01}`;
       });
       ```
-    
+
       @static
       @param {Function} helper The helper function
       @method helper
@@ -31019,52 +31019,52 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
       the view object. There is no access to the
       surrounding context or outer controller; all
       contextual information must be passed in.
-    
+
       The easiest way to create a `Component` is via
       a template. If you name a template
       `app/components/my-foo.hbs`, you will be able to use
       `{{my-foo}}` in other templates, which will make
       an instance of the isolated component.
-    
+
       ```app/components/my-foo.hbs
       {{person-profile person=currentUser}}
       ```
-    
+
       ```app/components/person-profile.hbs
       <h1>{{person.title}}</h1>
       <img src={{person.avatar}}>
       <p class='signature'>{{person.signature}}</p>
       ```
-    
+
       You can use `yield` inside a template to
       include the **contents** of any block attached to
       the component. The block will be executed in the
       context of the surrounding context or outer controller:
-    
+
       ```handlebars
       {{#person-profile person=currentUser}}
         <p>Admin mode</p>
         {{! Executed in the controller's context. }}
       {{/person-profile}}
       ```
-    
+
       ```app/components/person-profile.hbs
       <h1>{{person.title}}</h1>
       {{! Executed in the component's context. }}
       {{yield}} {{! block contents }}
       ```
-    
+
       If you want to customize the component, in order to
       handle events or actions, you implement a subclass
       of `Component` named after the name of the
       component.
-    
+
       For example, you could implement the action
       `hello` for the `person-profile` component:
-    
+
       ```app/components/person-profile.js
       import Component from '@ember/component';
-    
+
       export default Component.extend({
         actions: {
           hello(name) {
@@ -31073,9 +31073,9 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
         }
       });
       ```
-    
+
       And then use it in the component's template:
-    
+
       ```app/templates/components/person-profile.hbs
       <h1>{{person.title}}</h1>
       {{yield}} <!-- block contents -->
@@ -31083,208 +31083,208 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
         Say Hello to {{person.name}}
       </button>
       ```
-    
+
       Components must have a `-` in their name to avoid
       conflicts with built-in controls that wrap HTML
       elements. This is consistent with the same
       requirement in web components.
-    
+
       ## HTML Tag
-    
+
       The default HTML tag name used for a component's DOM representation is `div`.
       This can be customized by setting the `tagName` property.
       The following component class:
-    
+
       ```app/components/emphasized-paragraph.js
       import Component from '@ember/component';
-    
+
       export default Component.extend({
         tagName: 'em'
       });
       ```
-    
+
       Would result in instances with the following HTML:
-    
+
       ```html
       <em id="ember1" class="ember-view"></em>
       ```
-    
+
       ## HTML `class` Attribute
-    
+
       The HTML `class` attribute of a component's tag can be set by providing a
       `classNames` property that is set to an array of strings:
-    
+
       ```app/components/my-widget.js
       import Component from '@ember/component';
-    
+
       export default Component.extend({
         classNames: ['my-class', 'my-other-class']
       });
       ```
-    
+
       Will result in component instances with an HTML representation of:
-    
+
       ```html
       <div id="ember1" class="ember-view my-class my-other-class"></div>
       ```
-    
+
       `class` attribute values can also be set by providing a `classNameBindings`
       property set to an array of properties names for the component. The return value
       of these properties will be added as part of the value for the components's `class`
       attribute. These properties can be computed properties:
-    
+
       ```app/components/my-widget.js
       import Component from '@ember/component';
       import { computed } from '@ember/object';
-    
+
       export default Component.extend({
         classNameBindings: ['propertyA', 'propertyB'],
-    
+
         propertyA: 'from-a',
         propertyB: computed(function() {
           if (someLogic) { return 'from-b'; }
         })
       });
       ```
-    
+
       Will result in component instances with an HTML representation of:
-    
+
       ```html
       <div id="ember1" class="ember-view from-a from-b"></div>
       ```
-    
+
       If the value of a class name binding returns a boolean the property name
       itself will be used as the class name if the property is true.
       The class name will not be added if the value is `false` or `undefined`.
-    
+
       ```app/components/my-widget.js
       import Component from '@ember/component';
-    
+
       export default Component.extend({
         classNameBindings: ['hovered'],
-    
+
         hovered: true
       });
       ```
-    
+
       Will result in component instances with an HTML representation of:
-    
+
       ```html
       <div id="ember1" class="ember-view hovered"></div>
       ```
-    
+
       When using boolean class name bindings you can supply a string value other
       than the property name for use as the `class` HTML attribute by appending the
       preferred value after a ":" character when defining the binding:
-    
+
       ```app/components/my-widget.js
       import Component from '@ember/component';
-    
+
       export default Component.extend({
         classNameBindings: ['awesome:so-very-cool'],
-    
+
         awesome: true
       });
       ```
-    
+
       Will result in component instances with an HTML representation of:
-    
+
       ```html
       <div id="ember1" class="ember-view so-very-cool"></div>
       ```
-    
+
       Boolean value class name bindings whose property names are in a
       camelCase-style format will be converted to a dasherized format:
-    
+
       ```app/components/my-widget.js
       import Component from '@ember/component';
-    
+
       export default Component.extend({
         classNameBindings: ['isUrgent'],
-    
+
         isUrgent: true
       });
       ```
-    
+
       Will result in component instances with an HTML representation of:
-    
+
       ```html
       <div id="ember1" class="ember-view is-urgent"></div>
       ```
-    
+
       Class name bindings can also refer to object values that are found by
       traversing a path relative to the component itself:
-    
+
       ```app/components/my-widget.js
       import Component from '@ember/component';
       import EmberObject from '@ember/object';
-    
+
       export default Component.extend({
         classNameBindings: ['messages.empty'],
-    
+
         messages: EmberObject.create({
           empty: true
         })
       });
       ```
-    
+
       Will result in component instances with an HTML representation of:
-    
+
       ```html
       <div id="ember1" class="ember-view empty"></div>
       ```
-    
+
       If you want to add a class name for a property which evaluates to true and
       and a different class name if it evaluates to false, you can pass a binding
       like this:
-    
+
       ```app/components/my-widget.js
       import Component from '@ember/component';
-    
+
       export default Component.extend({
         classNameBindings: ['isEnabled:enabled:disabled'],
         isEnabled: true
       });
       ```
-    
+
       Will result in component instances with an HTML representation of:
-    
+
       ```html
       <div id="ember1" class="ember-view enabled"></div>
       ```
-    
+
       When isEnabled is `false`, the resulting HTML representation looks like
       this:
-    
+
       ```html
       <div id="ember1" class="ember-view disabled"></div>
       ```
-    
+
       This syntax offers the convenience to add a class if a property is `false`:
-    
+
       ```app/components/my-widget.js
       import Component from '@ember/component';
-    
+
       // Applies no class when isEnabled is true and class 'disabled' when isEnabled is false
       export default Component.extend({
         classNameBindings: ['isEnabled::disabled'],
         isEnabled: true
       });
       ```
-    
+
       Will result in component instances with an HTML representation of:
-    
+
       ```html
       <div id="ember1" class="ember-view"></div>
       ```
-    
+
       When the `isEnabled` property on the component is set to `false`, it will result
       in component instances with an HTML representation of:
-    
+
       ```html
       <div id="ember1" class="ember-view disabled"></div>
       ```
-    
+
       Updates to the value of a class name binding will result in automatic
       update of the  HTML `class` attribute in the component's rendered HTML
       representation. If the value becomes `false` or `undefined` the class name
@@ -31292,101 +31292,101 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
       Both `classNames` and `classNameBindings` are concatenated properties. See
       [EmberObject](/api/ember/release/classes/EmberObject) documentation for more
       information about concatenated properties.
-    
+
       ## HTML Attributes
-    
+
       The HTML attribute section of a component's tag can be set by providing an
       `attributeBindings` property set to an array of property names on the component.
       The return value of these properties will be used as the value of the component's
       HTML associated attribute:
-    
+
       ```app/components/my-anchor.js
       import Component from '@ember/component';
-    
+
       export default Component.extend({
         tagName: 'a',
         attributeBindings: ['href'],
-    
+
         href: 'http://google.com'
       });
       ```
-    
+
       Will result in component instances with an HTML representation of:
-    
+
       ```html
       <a id="ember1" class="ember-view" href="http://google.com"></a>
       ```
-    
+
       One property can be mapped on to another by placing a ":" between
       the source property and the destination property:
-    
+
       ```app/components/my-anchor.js
       import Component from '@ember/component';
-    
+
       export default Component.extend({
         tagName: 'a',
         attributeBindings: ['url:href'],
-    
+
         url: 'http://google.com'
       });
       ```
-    
+
       Will result in component instances with an HTML representation of:
-    
+
       ```html
       <a id="ember1" class="ember-view" href="http://google.com"></a>
       ```
-    
+
       Namespaced attributes (e.g. `xlink:href`) are supported, but have to be
       mapped, since `:` is not a valid character for properties in Javascript:
-    
+
       ```app/components/my-use.js
       import Component from '@ember/component';
-    
+
       export default Component.extend({
         tagName: 'use',
         attributeBindings: ['xlinkHref:xlink:href'],
-    
+
         xlinkHref: '#triangle'
       });
       ```
-    
+
       Will result in component instances with an HTML representation of:
-    
+
       ```html
       <use xlink:href="#triangle"></use>
       ```
-    
+
       If the return value of an `attributeBindings` monitored property is a boolean
       the attribute will be present or absent depending on the value:
-    
+
       ```app/components/my-text-input.js
       import Component from '@ember/component';
-    
+
       export default Component.extend({
         tagName: 'input',
         attributeBindings: ['disabled'],
-    
+
         disabled: false
       });
       ```
-    
+
       Will result in a component instance with an HTML representation of:
-    
+
       ```html
       <input id="ember1" class="ember-view" />
       ```
-    
+
       `attributeBindings` can refer to computed properties:
-    
+
       ```app/components/my-text-input.js
       import Component from '@ember/component';
       import { computed } from '@ember/object';
-    
+
       export default Component.extend({
         tagName: 'input',
         attributeBindings: ['disabled'],
-    
+
         disabled: computed(function() {
           if (someLogic) {
             return true;
@@ -31396,50 +31396,50 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
         })
       });
       ```
-    
+
       To prevent setting an attribute altogether, use `null` or `undefined` as the
       return value of the `attributeBindings` monitored property:
-    
+
       ```app/components/my-text-input.js
       import Component from '@ember/component';
-    
+
       export default Component.extend({
         tagName: 'form',
         attributeBindings: ['novalidate'],
         novalidate: null
       });
       ```
-    
+
       Updates to the property of an attribute binding will result in automatic
       update of the  HTML attribute in the component's rendered HTML representation.
       `attributeBindings` is a concatenated property. See [EmberObject](/api/ember/release/classes/EmberObject)
       documentation for more information about concatenated properties.
-    
+
       ## Layouts
-    
+
       See [Ember.Templates.helpers.yield](/api/ember/release/classes/Ember.Templates.helpers/methods/yield?anchor=yield)
       for more information.
-    
+
       Layout can be used to wrap content in a component. In addition
       to wrapping content in a Component's template, you can also use
       the public layout API in your Component JavaScript.
-    
+
       ```app/templates/components/person-profile.hbs
         <h1>Person's Title</h1>
         <div class='details'>{{yield}}</div>
       ```
-    
+
       ```app/components/person-profile.js
         import Component from '@ember/component';
         import layout from '../templates/components/person-profile';
-    
+
         export default Component.extend({
           layout
         });
       ```
-    
+
       The above will result in the following HTML output:
-    
+
       ```html
         <h1>Person's Title</h1>
         <div class="details">
@@ -31447,22 +31447,22 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
           <h3>Fisherman Industries</h3>
         </div>
       ```
-    
+
       ## Responding to Browser Events
-    
+
       Components can respond to user-initiated events in one of three ways: method
       implementation, through an event manager, and through `{{action}}` helper use
       in their template or layout.
-    
+
       ### Method Implementation
-    
+
       Components can respond to user-initiated events by implementing a method that
       matches the event name. A `jQuery.Event` object will be passed as the
       argument to this method.
-    
+
       ```app/components/my-widget.js
       import Component from '@ember/component';
-    
+
       export default Component.extend({
         click(event) {
           // will be called when an instance's
@@ -31470,33 +31470,33 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
         }
       });
       ```
-    
+
       ### `{{action}}` Helper
-    
+
       See [Ember.Templates.helpers.action](/api/ember/release/classes/Ember.Templates.helpers/methods/yield?anchor=yield).
-    
+
       ### Event Names
-    
+
       All of the event handling approaches described above respond to the same set
       of events. The names of the built-in events are listed below. (The hash of
       built-in events exists in `Ember.EventDispatcher`.) Additional, custom events
       can be registered by using `Application.customEvents`.
-    
+
       Touch events:
-    
+
       * `touchStart`
       * `touchMove`
       * `touchEnd`
       * `touchCancel`
-    
+
       Keyboard events:
-    
+
       * `keyDown`
       * `keyUp`
       * `keyPress`
-    
+
       Mouse events:
-    
+
       * `mouseDown`
       * `mouseUp`
       * `contextMenu`
@@ -31507,17 +31507,17 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
       * `focusOut`
       * `mouseEnter`
       * `mouseLeave`
-    
+
       Form events:
-    
+
       * `submit`
       * `change`
       * `focusIn`
       * `focusOut`
       * `input`
-    
+
       HTML5 drag and drop events:
-    
+
       * `dragStart`
       * `drag`
       * `dragEnter`
@@ -31525,7 +31525,7 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
       * `dragOver`
       * `dragEnd`
       * `drop`
-    
+
       @class Component
       @extends Ember.CoreView
       @uses Ember.TargetActionSupport
@@ -31611,22 +31611,22 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
     /**
       The internal class used to create text inputs when the `{{input}}`
       helper is used with `type` of `checkbox`.
-    
+
       See [Ember.Templates.helpers.input](/api/ember/release/classes/Ember.Templates.helpers/methods/input?anchor=input)  for usage details.
-    
+
       ## Direct manipulation of `checked`
-    
+
       The `checked` attribute of an `Checkbox` object should always be set
       through the Ember object or by interacting with its rendered element
       representation via the mouse, keyboard, or touch. Updating the value of the
       checkbox via jQuery will result in the checked value of the object and its
       element losing synchronization.
-    
+
       ## Layout and LayoutName properties
-    
+
       Because HTML `input` elements are self closing `layout` and `layoutName`
       properties will not be applied.
-    
+
       @class Checkbox
       @extends Component
       @public
@@ -31674,17 +31674,17 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
         return inputTypes[type] = inputTypeTestElement.type === type;
     }
     /**
-    
+
       The internal class used to create text inputs when the `{{input}}`
       helper is used with `type` of `text`.
-    
+
       See [Ember.Templates.helpers.input](/api/ember/release/classes/Ember.Templates.helpers/methods/input?anchor=input)  for usage details.
-    
+
       ## Layout and LayoutName properties
-    
+
       Because HTML `input` elements are self closing `layout` and `layoutName`
       properties will not be applied.
-    
+
       @class TextField
       @extends Component
       @uses Ember.TextSupport
@@ -31769,9 +31769,9 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
       `{{textarea}}` inserts a new instance of `<textarea>` tag into the template.
       The attributes of `{{textarea}}` match those of the native HTML tags as
       closely as possible.
-    
+
       The following HTML attributes can be set:
-    
+
         * `value`
         * `name`
         * `rows`
@@ -31790,74 +31790,74 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
         * `form`
         * `spellcheck`
         * `required`
-    
+
       When set to a quoted string, these value will be directly applied to the HTML
       element. When left unquoted, these values will be bound to a property on the
       template's current rendering context (most typically a controller instance).
-    
+
       Unbound:
-    
+
       ```handlebars
       {{textarea value="Lots of static text that ISN'T bound"}}
       ```
-    
+
       Would result in the following HTML:
-    
+
       ```html
       <textarea class="ember-text-area">
         Lots of static text that ISN'T bound
       </textarea>
       ```
-    
+
       Bound:
-    
+
       In the following example, the `writtenWords` property on the application
       Controller will be updated live as the user types 'Lots of text that IS
       bound' into the text area of their browser's window.
-    
+
       ```app/controllers/application.js
       import Controller from '@ember/controller';
-    
+
       export default Controller.extend({
         writtenWords: "Lots of text that IS bound"
       });
       ```
-    
+
       ```handlebars
       {{textarea value=writtenWords}}
       ```
-    
+
       Would result in the following HTML:
-    
+
       ```html
       <textarea class="ember-text-area">
         Lots of text that IS bound
       </textarea>
       ```
-    
+
       If you wanted a one way binding between the text area and a div tag
       somewhere else on your screen, you could use `oneWay`:
-    
+
       ```app/controllers/application.js
       import Controller from '@ember/controller';
       import { oneWay } from '@ember/object/computed';
-    
+
       export default Controller.extend({
         writtenWords: "Lots of text that IS bound",
-    
+
         outputWrittenWords: oneWay("writtenWords")
       });
       ```
-    
+
       ```handlebars
       {{textarea value=writtenWords}}
       <div>
         {{outputWrittenWords}}
       </div>
       ```
-    
+
       Would result in the following HTML:
-    
+
       ```html
       <textarea class="ember-text-area">
         Lots of text that IS bound
@@ -31867,29 +31867,29 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
         Lots of text that IS bound
       </div>
       ```
-    
+
       Finally, this example really shows the power and ease of Ember when two
       properties are bound to eachother via `alias`. Type into
       either text area box and they'll both stay in sync. Note that
       `alias` costs more in terms of performance, so only use it when
       your really binding in both directions:
-    
+
       ```app/controllers/application.js
       import Controller from '@ember/controller';
       import { alias } from '@ember/object/computed';
-    
+
       export default Controller.extend({
         writtenWords: "Lots of text that IS bound",
-    
+
         twoWayWrittenWords: alias("writtenWords")
       });
       ```
-    
+
       ```handlebars
       {{textarea value=writtenWords}}
       {{textarea value=twoWayWrittenWords}}
       ```
-    
+
       ```html
       <textarea id="ember1" class="ember-text-area">
         Lots of text that IS bound
@@ -31899,37 +31899,37 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
         Lots of text that IS bound
       </textarea>
       ```
-    
+
       ### Actions
-    
+
       The helper can send multiple actions based on user events.
       The action property defines the action which is send when
       the user presses the return key.
-    
+
       ```handlebars
       {{input action="submit"}}
       ```
-    
+
       The helper allows some user events to send actions.
-    
+
       * `enter`
       * `insert-newline`
       * `escape-press`
       * `focus-in`
       * `focus-out`
       * `key-press`
-    
+
       For example, if you desire an action to be sent when the input is blurred,
       you only need to setup the action name to the event name property.
-    
+
       ```handlebars
       {{textarea focus-out="alertMessage"}}
       ```
-    
+
       See more about [Text Support Actions](/api/ember/release/classes/TextArea)
-    
+
       ### Extension
-    
+
       Internally, `{{textarea}}` creates an instance of `TextArea`, passing
       arguments from the helper to `TextArea`'s `create` method. You can
       extend the capabilities of text areas in your application by reopening this
@@ -31938,21 +31938,21 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
       on all `{{textarea}}`s' in your app by reopening `TextArea` or
       `TextSupport` and adding it to the `attributeBindings` concatenated
       property:
-    
+
       ```javascript
       import TextArea from '@ember/component/text-area';
-    
+
       TextArea.reopen({
         attributeBindings: ['data-error']
       });
       ```
-    
+
       Keep in mind when writing `TextArea` subclasses that `TextArea`
       itself extends `Component`. Expect isolated component semantics, not
       legacy 1.x view semantics (like `controller` being present).
-    
+
       See more about [Ember components](/api/ember/release/classes/Component)
-    
+
       @method textarea
       @for Ember.Templates.helpers
       @param {Hash} options
@@ -31961,14 +31961,14 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
     /**
       The internal class used to create textarea element when the `{{textarea}}`
       helper is used.
-    
+
       See [Ember.Templates.helpers.textarea](/api/ember/release/classes/Ember.Templates.helpers/methods/textarea?anchor=textarea)  for usage details.
-    
+
       ## Layout and LayoutName properties
-    
+
       Because HTML `textarea` elements do not contain inner HTML the `layout` and
       `layoutName` properties will not be applied.
-    
+
       @class TextArea
       @extends Component
       @uses Ember.TextSupport
@@ -31998,11 +31998,11 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
       `LinkComponent` renders an element whose `click` event triggers a
       transition of the application's instance of `Router` to
       a supplied route by name.
-    
+
       `LinkComponent` components are invoked with {{#link-to}}. Properties
       of this class can be overridden with `reopen` to customize application-wide
       behavior.
-    
+
       @class LinkComponent
       @extends Component
       @see {Ember.Templates.helpers.link-to}
@@ -32489,32 +32489,32 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
       of the base Handlebars `{{#each}}` helper.
       The default behavior of `{{#each}}` is to yield its inner block once for every
       item in an array passing the item as the first block parameter.
-    
+
       ```javascript
       var developers = [{ name: 'Yehuda' },{ name: 'Tom' }, { name: 'Paul' }];
       ```
-    
+
       ```handlebars
       {{#each developers key="name" as |person|}}
         {{person.name}}
         {{! `this` is whatever it was outside the #each }}
       {{/each}}
       ```
-    
+
       The same rules apply to arrays of primitives.
-    
+
       ```javascript
       var developerNames = ['Yehuda', 'Tom', 'Paul']
       ```
-    
+
       ```handlebars
       {{#each developerNames key="@index" as |name|}}
         {{name}}
       {{/each}}
       ```
-    
+
       During iteration, the index of each item in the array is provided as a second block parameter.
-    
+
       ```handlebars
       <ul>
         {{#each people as |person index|}}
@@ -32522,31 +32522,31 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
         {{/each}}
       </ul>
       ```
-    
+
       ### Specifying Keys
-    
+
       The `key` option is used to tell Ember how to determine if the array being
       iterated over with `{{#each}}` has changed between renders. By helping Ember
       detect that some elements in the array are the same, DOM elements can be
       re-used, significantly improving rendering speed.
-    
+
       For example, here's the `{{#each}}` helper with its `key` set to `id`:
-    
+
       ```handlebars
       {{#each model key="id" as |item|}}
       {{/each}}
       ```
-    
+
       When this `{{#each}}` re-renders, Ember will match up the previously rendered
       items (and reorder the generated DOM elements) based on each item's `id`
       property.
       By default the item's own reference is used.
-    
+
       ### {{else}} condition
-    
+
       `{{#each}}` can have a matching `{{else}}`. The contents of this block will render
       if the collection is empty.
-    
+
       ```handlebars
       {{#each developers as |person|}}
         {{person.name}}
@@ -32554,26 +32554,26 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
         <p>Sorry, nobody is available for this task.</p>
       {{/each}}
       ```
-    
+
       @method each
       @for Ember.Templates.helpers
       @public
      */
     /**
       The `{{each-in}}` helper loops over properties on an object.
-    
+
       For example, given a `user` object that looks like:
-    
+
       ```javascript
       {
         "name": "Shelly Sails",
         "age": 42
       }
       ```
-    
+
       This template would display all properties on the `user`
       object in a list:
-    
+
       ```handlebars
       <ul>
       {{#each-in user as |key value|}}
@@ -32581,9 +32581,9 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
       {{/each-in}}
       </ul>
       ```
-    
+
       Outputting their name and age.
-    
+
       @method each-in
       @for Ember.Templates.helpers
       @public
@@ -33140,13 +33140,13 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
       Mark a string as safe for unescaped output with Ember templates. If you
       return HTML from a helper, use this function to
       ensure Ember's rendering layer does not escape the HTML.
-    
+
       ```javascript
       import { htmlSafe } from '@ember/string';
-    
+
       htmlSafe('<div>someString</div>')
       ```
-    
+
       @method htmlSafe
       @for @ember/template
       @static
@@ -33163,17 +33163,17 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
     }
     /**
       Detects if a string was decorated using `htmlSafe`.
-    
+
       ```javascript
       import { htmlSafe, isHTMLSafe } from '@ember/string';
-    
+
       var plainString = 'plain string',
           safeString = htmlSafe('<div>someValue</div>');
-    
+
       isHTMLSafe(plainString); // false
       isHTMLSafe(safeString);  // true
       ```
-    
+
       @method isHTMLSafe
       @for @ember/template
       @static
@@ -33564,7 +33564,7 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
     */
     /**
       Represents the internal state of the component.
-    
+
       @class ComponentStateBucket
       @private
     */
@@ -34493,7 +34493,7 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
       this context is defined as when all of the tags in use are "current" (e.g.
       `renderers.every(r => r._isValid())`). When this is checked at the _end_ of
       the run loop, this essentially guarantees that all rendering is completed.
-    
+
       @method renderSettled
       @returns {Promise<void>} a promise which fulfills when rendering has settled
     */
@@ -34836,28 +34836,28 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
       Calls [loc](/api/classes/Ember.String.html#method_loc) with the
       provided string. This is a convenient way to localize text within a template.
       For example:
-    
+
       ```javascript
       Ember.STRINGS = {
         '_welcome_': 'Bonjour'
       };
       ```
-    
+
       ```handlebars
       <div class='message'>
         {{loc '_welcome_'}}
       </div>
       ```
-    
+
       ```html
       <div class='message'>
         Bonjour
       </div>
       ```
-    
+
       See [String.loc](/api/ember/release/classes/String/methods/loc?anchor=loc) for how to
       set up localized string references.
-    
+
       @method loc
       @for Ember.Templates.helpers
       @param {String} str The string to format.
@@ -34959,22 +34959,22 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
       implementations that integrate seamlessly into Ember. This is accomplished
       through a delegate, registered with the custom component manager, which
       implements a set of hooks that determine component behavior.
-    
+
       To create a custom component manager, instantiate a new CustomComponentManager
       class and pass the delegate as the first argument:
-    
+
       ```js
       let manager = new CustomComponentManager({
         // ...delegate implementation...
       });
       ```
-    
+
       ## Delegate Hooks
-    
+
       Throughout the lifecycle of a component, the component manager will invoke
       delegate hooks that are responsible for surfacing those lifecycle changes to
       the end developer.
-    
+
       * `create()` - invoked when a new instance of a component should be created
       * `update()` - invoked when the arguments passed to a component change
       * `getContext()` - returns the object that should be
@@ -35246,12 +35246,12 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
     /**
       The `{{action}}` helper provides a way to pass triggers for behavior (usually
       just a function) between components, and into components from controllers.
-    
+
       ### Passing functions with the action helper
-    
+
       There are three contexts an action helper can be used in. The first two
       contexts to discuss are attribute context, and Handlebars value context.
-    
+
       ```handlebars
       {{! An example of attribute context }}
       <div onclick={{action "save"}}></div>
@@ -35259,23 +35259,23 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
       {{input on-input=(action "save")}}
       {{yield (action "refreshData") andAnotherParam}}
       ```
-    
+
       In these contexts,
       the helper is called a "closure action" helper. Its behavior is simple:
       If passed a function name, read that function off the `actions` property
       of the current context. Once that function is read, or immediately if a function was
       passed, create a closure over that function and any arguments.
       The resulting value of an action helper used this way is simply a function.
-    
+
       For example, in the attribute context:
-    
+
       ```handlebars
       {{! An example of attribute context }}
       <div onclick={{action "save"}}></div>
       ```
-    
+
       The resulting template render logic would be:
-    
+
       ```js
       var div = document.createElement('div');
       var actionFunction = (function(context){
@@ -35285,16 +35285,16 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
       })(context);
       div.onclick = actionFunction;
       ```
-    
+
       Thus when the div is clicked, the action on that context is called.
       Because the `actionFunction` is just a function, closure actions can be
       passed between components and still execute in the correct context.
-    
+
       Here is an example action handler on a component:
-    
+
       ```app/components/my-component.js
       import Component from '@ember/component';
-    
+
       export default Component.extend({
         actions: {
           save() {
@@ -35303,30 +35303,30 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
         }
       });
       ```
-    
+
       Actions are always looked up on the `actions` property of the current context.
       This avoids collisions in the naming of common actions, such as `destroy`.
       Two options can be passed to the `action` helper when it is used in this way.
-    
+
       * `target=someProperty` will look to `someProperty` instead of the current
         context for the `actions` hash. This can be useful when targeting a
         service for actions.
       * `value="target.value"` will read the path `target.value` off the first
         argument to the action when it is called and rewrite the first argument
         to be that value. This is useful when attaching actions to event listeners.
-    
+
       ### Invoking an action
-    
+
       Closure actions curry both their scope and any arguments. When invoked, any
       additional arguments are added to the already curried list.
       Actions should be invoked using the [sendAction](/api/ember/release/classes/Component/methods/sendAction?anchor=sendAction)
       method. The first argument to `sendAction` is the action to be called, and
       additional arguments are passed to the action function. This has interesting
       properties combined with currying of arguments. For example:
-    
+
       ```app/components/my-component.js
       import Component from '@ember/component';
-    
+
       export default Component.extend({
         actions: {
           // Usage {{input on-input=(action (action 'setName' model) value="target.value")}}
@@ -35336,18 +35336,18 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
         }
       });
       ```
-    
+
       The first argument (`model`) was curried over, and the run-time argument (`event`)
       becomes a second argument. Action calls can be nested this way because each simply
       returns a function. Any function can be passed to the `{{action}}` helper, including
       other actions.
-    
+
       Actions invoked with `sendAction` have the same currying behavior as demonstrated
       with `on-input` above. For example:
-    
+
       ```app/components/my-input.js
       import Component from '@ember/component';
-    
+
       export default Component.extend({
         actions: {
           setName(model, name) {
@@ -35356,14 +35356,14 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
         }
       });
       ```
-    
+
       ```handlebars
       {{my-input submit=(action 'setName' model)}}
       ```
-    
+
       ```app/components/my-component.js
       import Component from '@ember/component';
-    
+
       export default Component.extend({
         click() {
           // Note that model is not passed, it was curried in the template
@@ -35371,57 +35371,57 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
         }
       });
       ```
-    
+
       ### Attaching actions to DOM elements
-    
+
       The third context of the `{{action}}` helper can be called "element space".
       For example:
-    
+
       ```handlebars
       {{! An example of element space }}
       <div {{action "save"}}></div>
       ```
-    
+
       Used this way, the `{{action}}` helper provides a useful shortcut for
       registering an HTML element in a template for a single DOM event and
       forwarding that interaction to the template's context (controller or component).
       If the context of a template is a controller, actions used this way will
       bubble to routes when the controller does not implement the specified action.
       Once an action hits a route, it will bubble through the route hierarchy.
-    
+
       ### Event Propagation
-    
+
       `{{action}}` helpers called in element space can control event bubbling. Note
       that the closure style actions cannot.
-    
+
       Events triggered through the action helper will automatically have
       `.preventDefault()` called on them. You do not need to do so in your event
       handlers. If you need to allow event propagation (to handle file inputs for
       example) you can supply the `preventDefault=false` option to the `{{action}}` helper:
-    
+
       ```handlebars
       <div {{action "sayHello" preventDefault=false}}>
         <input type="file" />
         <input type="checkbox" />
       </div>
       ```
-    
+
       To disable bubbling, pass `bubbles=false` to the helper:
-    
+
       ```handlebars
       <button {{action 'edit' post bubbles=false}}>Edit</button>
       ```
-    
+
       To disable bubbling with closure style actions you must create your own
       wrapper helper that makes use of `event.stopPropagation()`:
-    
+
       ```handlebars
       <div onclick={{disable-bubbling (action "sayHello")}}>Hello</div>
       ```
-    
+
       ```app/helpers/disable-bubbling.js
       import { helper } from '@ember/component/helper';
-    
+
       export function disableBubbling([action]) {
         return function(event) {
           event.stopPropagation();
@@ -35430,69 +35430,69 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
       }
       export default helper(disableBubbling);
       ```
-    
+
       If you need the default handler to trigger you should either register your
       own event handler, or use event methods on your view class. See
       ["Responding to Browser Events"](/api/ember/release/classes/Component)
       in the documentation for `Component` for more information.
-    
+
       ### Specifying DOM event type
-    
+
       `{{action}}` helpers called in element space can specify an event type.
       By default the `{{action}}` helper registers for DOM `click` events. You can
       supply an `on` option to the helper to specify a different DOM event name:
-    
+
       ```handlebars
       <div {{action "anActionName" on="doubleClick"}}>
         click me
       </div>
       ```
-    
+
       See ["Event Names"](/api/ember/release/classes/Component) for a list of
       acceptable DOM event names.
-    
+
       ### Specifying whitelisted modifier keys
-    
+
       `{{action}}` helpers called in element space can specify modifier keys.
       By default the `{{action}}` helper will ignore click events with pressed modifier
       keys. You can supply an `allowedKeys` option to specify which keys should not be ignored.
-    
+
       ```handlebars
       <div {{action "anActionName" allowedKeys="alt"}}>
         click me
       </div>
       ```
-    
+
       This way the action will fire when clicking with the alt key pressed down.
       Alternatively, supply "any" to the `allowedKeys` option to accept any combination of modifier keys.
-    
+
       ```handlebars
       <div {{action "anActionName" allowedKeys="any"}}>
         click me with any key pressed
       </div>
       ```
-    
+
       ### Specifying a Target
-    
+
       A `target` option can be provided to the helper to change
       which object will receive the method call. This option must be a path
       to an object, accessible in the current context:
-    
+
       ```app/templates/application.hbs
       <div {{action "anActionName" target=someService}}>
         click me
       </div>
       ```
-    
+
       ```app/controllers/application.js
       import Controller from '@ember/controller';
       import { inject as service } from '@ember/service';
-    
+
       export default Controller.extend({
         someService: service()
       });
       ```
-    
+
       @method action
       @for Ember.Templates.helpers
       @public
@@ -35613,15 +35613,15 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
     */
     /**
       Concatenates the given arguments into a string.
-    
+
       Example:
-    
+
       ```handlebars
       {{some-component name=(concat firstName " " lastName)}}
-    
+
       {{! would pass name="<first name value> <last name value>" to the component}}
       ```
-    
+
       @public
       @method concat
       @for Ember.Templates.helpers
@@ -35642,41 +35642,41 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
     /**
       Dynamically look up a property on an object. The second argument to `{{get}}`
       should have a string value, although it can be bound.
-    
+
       For example, these two usages are equivalent:
-    
+
       ```handlebars
       {{person.height}}
       {{get person "height"}}
       ```
-    
+
       If there were several facts about a person, the `{{get}}` helper can dynamically
       pick one:
-    
+
       ```handlebars
       {{get person factName}}
       ```
-    
+
       For a more complex example, this template would allow the user to switch
       between showing the user's height and weight with a click:
-    
+
       ```handlebars
       {{get person factName}}
       <button {{action (action (mut factName)) "height"}}>Show height</button>
       <button {{action (action (mut factName)) "weight"}}>Show weight</button>
       ```
-    
+
       The `{{get}}` helper can also respect mutable values itself. For example:
-    
+
       ```handlebars
       {{input value=(mut (get person factName)) type="text"}}
       <button {{action (action (mut factName)) "height"}}>Show height</button>
       <button {{action (action (mut factName)) "weight"}}>Show weight</button>
       ```
-    
+
       Would allow the user to swap what fact is being displayed, and also edit
       that fact via a two-way mutable binding.
-    
+
       @public
       @method get
       @for Ember.Templates.helpers
@@ -35752,33 +35752,33 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
        Use the `{{hash}}` helper to create a hash to pass as an option to your
        components. This is specially useful for contextual components where you can
        just yield a hash:
-    
+
        ```handlebars
        {{yield (hash
           name='Sarah'
           title=office
        )}}
        ```
-    
+
        Would result in an object such as:
-    
+
        ```js
        { name: 'Sarah', title: this.get('office') }
        ```
-    
+
        Where the `title` is bound to updates of the `office` property.
-    
+
        Note that the hash is an empty object with no prototype chain, therefore
        common methods like `toString` are not available in the resulting hash.
        If you need to use such a method, you can use the `call` or `apply`
        approach:
-    
+
        ```js
        function toString(obj) {
          return Object.prototype.toString.apply(obj);
        }
        ```
-    
+
        @method hash
        @for Ember.Templates.helpers
        @param {Object} options
@@ -35832,27 +35832,27 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
       The `if` helper allows you to conditionally render one of two branches,
       depending on the "truthiness" of a property.
       For example the following values are all falsey: `false`, `undefined`, `null`, `""`, `0`, `NaN` or an empty array.
-    
+
       This helper has two forms, block and inline.
-    
+
       ## Block form
-    
+
       You can use the block form of `if` to conditionally render a section of the template.
-    
+
       To use it, pass the conditional value to the `if` helper,
       using the block form to wrap the section of template you want to conditionally render.
       Like so:
-    
+
       ```handlebars
       {{! will not render if foo is falsey}}
       {{#if foo}}
         Welcome to the {{foo.bar}}
       {{/if}}
       ```
-    
+
       You can also specify a template to show if the property is falsey by using
       the `else` helper.
-    
+
       ```handlebars
       {{! is it raining outside?}}
       {{#if isRaining}}
@@ -35861,10 +35861,10 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
         No, it's lovely outside!
       {{/if}}
       ```
-    
+
       You are also able to combine `else` and `if` helpers to create more complex
       conditional logic.
-    
+
       ```handlebars
       {{#if isMorning}}
         Good morning
@@ -35874,38 +35874,38 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
         Good night
       {{/if}}
       ```
-    
+
       ## Inline form
-    
+
       The inline `if` helper conditionally renders a single property or string.
-    
+
       In this form, the `if` helper receives three arguments, the conditional value,
       the value to render when truthy, and the value to render when falsey.
-    
+
       For example, if `useLongGreeting` is truthy, the following:
-    
+
       ```handlebars
       {{if useLongGreeting "Hello" "Hi"}} Alex
       ```
-    
+
       Will render:
-    
+
       ```html
       Hello Alex
       ```
-    
+
       ### Nested `if`
-    
+
       You can use the `if` helper inside another helper as a nested helper:
-    
+
       ```handlebars
       {{some-component height=(if isBig "100" "10")}}
       ```
-    
+
       One detail to keep in mind is that both branches of the `if` helper will be evaluated,
       so if you have `{{if condition "foo" (expensive-operation "bar")`,
       `expensive-operation` will always calculate.
-    
+
       @method if
       @for Ember.Templates.helpers
       @public
@@ -35921,17 +35921,17 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
       This helper acts like a ternary operator. If the first property is falsy,
       the second argument will be displayed, otherwise, the third argument will be
       displayed
-    
+
       ```handlebars
       {{unless useLongGreeting "Hi" "Hello"}} Ben
       ```
-    
+
       You can use the `unless` helper inside another helper as a subexpression.
-    
+
       ```handlebars
       {{some-component height=(unless isBig "10" "100")}}
       ```
-    
+
       @method unless
       @for Ember.Templates.helpers
       @public
@@ -35949,11 +35949,11 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
     /**
       `log` allows you to output the value of variables in the current rendering
       context. `log` also accepts primitive types such as strings or numbers.
-    
+
       ```handlebars
       {{log "myVariable:" myVariable }}
       ```
-    
+
       @method log
       @for Ember.Templates.helpers
       @param {Array} params
@@ -35978,16 +35978,16 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
     /**
       The `mut` helper lets you __clearly specify__ that a child `Component` can update the
       (mutable) value passed to it, which will __change the value of the parent component__.
-    
+
       To specify that a parameter is mutable, when invoking the child `Component`:
-    
+
       ```handlebars
       {{my-child childClickCount=(mut totalClicks)}}
       ```
-    
+
       The child `Component` can then modify the parent's value just by modifying its own
       property:
-    
+
       ```javascript
       // my-child.js
       export default Component.extend({
@@ -35996,19 +35996,19 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
         }
       });
       ```
-    
+
       Note that for curly components (`{{my-component}}`) the bindings are already mutable,
       making the `mut` unnecessary.
-    
+
       Additionally, the `mut` helper can be combined with the `action` helper to
       mutate a value. For example:
-    
+
       ```handlebars
       {{my-child childClickCount=totalClicks click-count-change=(action (mut totalClicks))}}
       ```
-    
+
       The child `Component` would invoke the action with the new click value:
-    
+
       ```javascript
       // my-child.js
       export default Component.extend({
@@ -36017,28 +36017,28 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
         }
       });
       ```
-    
+
       The `mut` helper changes the `totalClicks` value to what was provided as the action argument.
-    
+
       The `mut` helper, when used with `action`, will return a function that
       sets the value passed to `mut` to its first argument. This works like any other
       closure action and interacts with the other features `action` provides.
       As an example, we can create a button that increments a value passing the value
       directly to the `action`:
-    
+
       ```handlebars
       {{! inc helper is not provided by Ember }}
       <button onclick={{action (mut count) (inc count)}}>
         Increment count
       </button>
       ```
-    
+
       You can also use the `value` option:
-    
+
       ```handlebars
       <input value={{name}} oninput={{action (mut name) value="target.value"}}>
       ```
-    
+
       @method mut
       @param {Object} [attr] the "two-way" attribute that can be modified.
       @for Ember.Templates.helpers
@@ -36084,13 +36084,13 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
     /**
       This is a helper to be used in conjunction with the link-to helper.
       It will supply url query parameters to the target route.
-    
+
       Example
-    
+
       ```handlebars
       {{#link-to 'posts' (query-params direction="asc")}}Sort{{/link-to}}
       ```
-    
+
       @method query-params
       @for Ember.Templates.helpers
       @param {Object} hash takes a hash of query parameters
@@ -36114,22 +36114,22 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
       When you pass a `readonly` binding from an outer context (e.g. parent component),
       to to an inner context (e.g. child component), you are saying that changing that
       property in the inner context does not change the value in the outer context.
-    
+
       To specify that a binding is read-only, when invoking the child `Component`:
-    
+
       ```app/components/my-parent.js
       export default Component.extend({
         totalClicks: 3
       });
       ```
-    
+
       ```app/templates/components/my-parent.hbs
       {{log totalClicks}} // -> 3
       {{my-child childClickCount=(readonly totalClicks)}}
       ```
-    
+
       Now, when you update `childClickCount`:
-    
+
       ```app/components/my-child.js
       export default Component.extend({
         click() {
@@ -36137,70 +36137,70 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
         }
       });
       ```
-    
+
       The value updates in the child component, but not the parent component:
-    
+
       ```app/templates/components/my-child.hbs
       {{log childClickCount}} //-> 4
       ```
-    
+
       ```app/templates/components/my-parent.hbs
       {{log totalClicks}} //-> 3
       {{my-child childClickCount=(readonly totalClicks)}}
       ```
-    
+
       ### Objects and Arrays
-    
+
       When passing a property that is a complex object (e.g. object, array) instead of a primitive object (e.g. number, string),
       only the reference to the object is protected using the readonly helper.
       This means that you can change properties of the object both on the parent component, as well as the child component.
       The `readonly` binding behaves similar to the `const` keyword in JavaScript.
-    
+
       Let's look at an example:
-    
+
       First let's set up the parent component:
-    
+
       ```app/components/my-parent.js
       import Component from '@ember/component';
-    
+
       export default Component.extend({
         clicks: null,
-    
+
         init() {
           this._super(...arguments);
           this.set('clicks', { total: 3 });
         }
       });
       ```
-    
+
       ```app/templates/components/my-parent.hbs
       {{log clicks.total}} //-> 3
       {{my-child childClicks=(readonly clicks)}}
       ```
-    
+
       Now, if you update the `total` property of `childClicks`:
-    
+
       ```app/components/my-child.js
       import Component from '@ember/component';
-    
+
       export default Component.extend({
         click() {
           this.get('clicks').incrementProperty('total');
         }
       });
       ```
-    
+
       You will see the following happen:
-    
+
       ```app/templates/components/my-parent.hbs
       {{log clicks.total}} //-> 4
       {{my-child childClicks=(readonly clicks)}}
       ```
-    
+
       ```app/templates/components/my-child.hbs
       {{log childClicks.total}} //-> 4
       ```
-    
+
       @method readonly
       @param {Object} [attr] the read-only attribute.
       @for Ember.Templates.helpers
@@ -36219,24 +36219,24 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
       essentially freezing its value at the moment of rendering. For example,
       in this example the display of the variable `name` will not change even
       if it is set with a new value:
-    
+
       ```handlebars
       {{unbound name}}
       ```
-    
+
       Like any helper, the `unbound` helper can accept a nested helper expression.
       This allows for custom helpers to be rendered unbound:
-    
+
       ```handlebars
       {{unbound (some-custom-helper)}}
       {{unbound (capitalize name)}}
       {{! You can use any helper, including unbound, in a nested expression }}
       {{capitalize (unbound name)}}
       ```
-    
+
       The `unbound` helper only accepts a single argument, and it return an
       unbound value.
-    
+
       @method unbound
       @for Ember.Templates.helpers
       @public
@@ -36481,19 +36481,19 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
       It causes an `TextField` component to be rendered.  For more info,
       see the [TextField](/api/ember/release/classes/TextField) docs and
       the [templates guide](https://guides.emberjs.com/release/templates/input-helpers/).
-    
+
       ```handlebars
       {{input value="987"}}
       ```
-    
+
       renders as:
-    
+
       ```HTML
       <input type="text" value="987" />
       ```
-    
+
       ### Text field
-    
+
       If no `type` option is specified, a default of type 'text' is used.
       Many of the standard HTML attributes may be passed to this helper.
       <table>
@@ -36512,27 +36512,27 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
       element. When left unquoted, these values will be bound to a property on the
       template's current rendering context (most typically a controller instance).
       A very common use of this helper is to bind the `value` of an input to an Object's attribute:
-    
+
       ```handlebars
       Search:
       {{input value=searchWord}}
       ```
-    
+
       In this example, the initial value in the `<input />` will be set to the value of `searchWord`.
       If the user changes the text, the value of `searchWord` will also be updated.
-    
+
       ### Actions
-    
+
       The helper can send multiple actions based on user events.
       The action property defines the action which is sent when
       the user presses the return key.
-    
+
       ```handlebars
       {{input action="submit"}}
       ```
-    
+
       The helper allows some user events to send actions.
-    
+
       * `enter`
       * `insert-newline`
       * `escape-press`
@@ -36540,49 +36540,49 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
       * `focus-out`
       * `key-press`
       * `key-up`
-    
+
       For example, if you desire an action to be sent when the input is blurred,
       you only need to setup the action name to the event name property.
-    
+
       ```handlebars
       {{input focus-out="alertMessage"}}
       ```
       See more about [Text Support Actions](/api/ember/release/classes/TextField)
-    
+
       ### Extending `TextField`
-    
+
       Internally, `{{input type="text"}}` creates an instance of `TextField`, passing
       arguments from the helper to `TextField`'s `create` method. You can extend the
       capabilities of text inputs in your applications by reopening this class. For example,
       if you are building a Bootstrap project where `data-*` attributes are used, you
       can add one to the `TextField`'s `attributeBindings` property:
-    
+
       ```javascript
       import TextField from '@ember/component/text-field';
       TextField.reopen({
         attributeBindings: ['data-error']
       });
       ```
-    
+
       Keep in mind when writing `TextField` subclasses that `TextField`
       itself extends `Component`. Expect isolated component semantics, not
       legacy 1.x view semantics (like `controller` being present).
       See more about [Ember components](/api/ember/release/classes/Component)
-    
+
       ### Checkbox
-    
+
       Checkboxes are special forms of the `{{input}}` helper.  To create a `<checkbox />`:
-    
+
       ```handlebars
       Emberize Everything:
       {{input type="checkbox" name="isEmberized" checked=isEmberized}}
       ```
-    
+
       This will bind checked state of this checkbox to the value of `isEmberized`  -- if either one changes,
       it will be reflected in the other.
-    
+
       The following HTML attributes can be set via the helper:
-    
+
       * `checked`
       * `disabled`
       * `tabindex`
@@ -36590,22 +36590,22 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
       * `name`
       * `autofocus`
       * `form`
-    
+
       ### Extending `Checkbox`
-    
+
       Internally, `{{input type="checkbox"}}` creates an instance of `Checkbox`, passing
       arguments from the helper to `Checkbox`'s `create` method. You can extend the
       capablilties of checkbox inputs in your applications by reopening this class. For example,
       if you wanted to add a css class to all checkboxes in your application:
-    
+
       ```javascript
       import Checkbox from '@ember/component/checkbox';
-    
+
       Checkbox.reopen({
         classNames: ['my-app-checkbox']
       });
       ```
-    
+
       @method input
       @for Ember.Templates.helpers
       @param {Hash} options
@@ -36645,20 +36645,20 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
     /**
         The `let` helper receives one or more positional arguments and yields
         them out as block params.
-    
+
         This allows the developer to introduce shorter names for certain computations
         in the template.
-    
+
         This is especially useful if you are passing properties to a component
         that receives a lot of options and you want to clean up the invocation.
-    
+
         For the following example, the template receives a `post` object with
         `content` and `title` properties.
-    
+
         We are going to call the `my-post` component, passing a title which is
         the title of the post suffixed with the name of the blog, the content
         of the post, and a series of options defined in-place.
-    
+
         ```handlebars
         {{#let
             (concat post.title ' | The Ember.js Blog')
@@ -36672,7 +36672,7 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
           {{my-post title=title content=content options=options}}
         {{/let}}
       ```
-    
+
       @method let
       @for Ember.Templates.helpers
       @public
@@ -36824,25 +36824,25 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
       The `{{mount}}` helper lets you embed a routeless engine in a template.
       Mounting an engine will cause an instance to be booted and its `application`
       template to be rendered.
-    
+
       For example, the following template mounts the `ember-chat` engine:
-    
+
       ```handlebars
       {{! application.hbs }}
       {{mount "ember-chat"}}
       ```
-    
+
       Additionally, you can also pass in a `model` argument that will be
       set as the engines model. This can be an existing object:
-    
+
       ```
       <div>
         {{mount 'admin' model=userSettings}}
       </div>
       ```
-    
+
       Or an inline `hash`, and you can even pass components:
-    
+
       ```
       <div>
         <h1>Application template!</h1>
@@ -36852,7 +36852,7 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
         )}}
       </div>
       ```
-    
+
       @method mount
       @param {String} name Name of the engine to mount.
       @param {Object} [model] Object that will be set as
@@ -37024,7 +37024,7 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
       The `{{outlet}}` helper lets you specify where a child route will render in
       your template. An important use of the `{{outlet}}` helper is in your
       application's `application.hbs` file:
-    
+
       ```handlebars
       {{! app/templates/application.hbs }}
       <!-- header content goes here, and will always display -->
@@ -37036,33 +37036,33 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
       <!-- footer content goes here, and will always display -->
       {{my-footer}}
       ```
-    
+
       You may also specify a name for the `{{outlet}}`, which is useful when using more than one
       `{{outlet}}` in a template:
-    
+
       ```handlebars
       {{outlet "menu"}}
       {{outlet "sidebar"}}
       {{outlet "main"}}
       ```
-    
+
       Your routes can then render into a specific one of these `outlet`s by specifying the `outlet`
       attribute in your `renderTemplate` function:
-    
+
       ```app/routes/menu.js
       import Route from '@ember/routing/route';
-    
+
       export default Route.extend({
         renderTemplate() {
           this.render({ outlet: 'menu' });
         }
       });
       ```
-    
+
       See the [routing guide](https://guides.emberjs.com/release/routing/rendering-a-template/) for more
       information on how your `route` interacts with the `{{outlet}}` helper.
       Note: Your content __will not render__ if there isn't an `{{outlet}}` for it.
-    
+
       @method outlet
       @param {String} [name]
       @for Ember.Templates.helpers
@@ -37341,56 +37341,56 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
       template that matches the provided name. The inserted template will
       access its properties on its own controller (rather than the controller
       of the parent template).
-    
+
       If a view class with the same name exists, the view class also will be used.
       Note: A given controller may only be used *once* in your app in this manner.
       A singleton instance of the controller will be created for you.
-    
+
       Example:
-    
+
       ```app/controllers/navigation.js
       import Controller from '@ember/controller';
-    
+
       export default Controller.extend({
         who: "world"
       });
       ```
-    
+
       ```handlebars
       <!-- navigation.hbs -->
       Hello, {{who}}.
       ```
-    
+
       ```handlebars
       <!-- application.hbs -->
       <h1>My great app</h1>
       {{render "navigation"}}
       ```
-    
+
       ```html
       <h1>My great app</h1>
       <div class='ember-view'>
         Hello, world.
       </div>
       ```
-    
+
       Optionally you may provide a second argument: a property path
       that will be bound to the `model` property of the controller.
       If a `model` property path is specified, then a new instance of the
       controller will be created and `{{render}}` can be used multiple times
       with the same name.
-    
+
       For example if you had this `author` template.
-    
+
       ```handlebars
       <div class="author">
         Written by {{firstName}} {{lastName}}.
         Total Posts: {{postCount}}
       </div>
       ```
-    
+
       You could render it inside the `post` template using the `render` helper.
-    
+
       ```handlebars
       <div class="post">
         <h1>{{title}}</h1>
@@ -37398,7 +37398,7 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
         {{render "author" author}}
       </div>
       ```
-    
+
       @method render
       @for Ember.Templates.helpers
       @param {String} name
@@ -37947,50 +37947,50 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
 
     /**
       [Glimmer](https://github.com/tildeio/glimmer) is a templating engine used by Ember.js that is compatible with a subset of the [Handlebars](http://handlebarsjs.com/) syntax.
-    
+
       ### Showing a property
-    
+
       Templates manage the flow of an application's UI, and display state (through
       the DOM) to a user. For example, given a component with the property "name",
       that component's template can use the name in several ways:
-    
+
       ```app/components/person-profile.js
       import Component from '@ember/component';
-    
+
       export default Component.extend({
         name: 'Jill'
       });
       ```
-    
+
       ```app/components/person-profile.hbs
       {{name}}
       <div>{{name}}</div>
       <span data-name={{name}}></span>
       ```
-    
+
       Any time the "name" property on the component changes, the DOM will be
       updated.
-    
+
       Properties can be chained as well:
-    
+
       ```handlebars
       {{aUserModel.name}}
       <div>{{listOfUsers.firstObject.name}}</div>
       ```
-    
+
       ### Using Ember helpers
-    
+
       When content is passed in mustaches `{{}}`, Ember will first try to find a helper
       or component with that name. For example, the `if` helper:
-    
+
       ```handlebars
       {{if name "I have a name" "I have no name"}}
       <span data-has-name={{if name true}}></span>
       ```
-    
+
       The returned value is placed where the `{{}}` is called. The above style is
       called "inline". A second style of helper usage is called "block". For example:
-    
+
       ```handlebars
       {{#if name}}
       I have a name
@@ -37998,27 +37998,27 @@ enifed('ember-glimmer', ['exports', '@glimmer/runtime', '@glimmer/util', '@glimm
       I have no name
       {{/if}}
       ```
-    
+
       The block form of helpers allows you to control how the UI is created based
       on the values of properties.
       A third form of helper is called "nested". For example here the concat
       helper will add " Doe" to a displayed name if the person has no last name:
-    
+
       ```handlebars
       <span data-name={{concat firstName (
       if lastName (concat " " lastName) "Doe"
       )}}></span>
       ```
-    
+
       Ember's built-in helpers are described under the [Ember.Templates.helpers](/api/ember/release/classes/Ember.Templates.helpers)
       namespace. Documentation on creating custom helpers can be found under
       [Helper](/api/classes/Ember.Helper.html).
-    
+
       ### Invoking a Component
-    
+
       Ember components represent state to the UI of an application. Further
       reading on components can be found under [Component](/api/ember/release/classes/Component).
-    
+
       @module @ember/component
       @main @ember/component
       @public
@@ -38678,7 +38678,7 @@ enifed('ember-meta/lib/meta', ['exports', 'ember-babel', '@ember/debug', '@ember
     /**
       Tears down the meta on an object so that it can be garbage collected.
       Multiple calls will have no effect.
-    
+
       @method deleteMeta
       @for Ember
       @param {Object} obj  the object to destroy
@@ -38701,16 +38701,16 @@ enifed('ember-meta/lib/meta', ['exports', 'ember-babel', '@ember/debug', '@ember
     /**
       Retrieves the meta hash for an object. If `writable` is true ensures the
       hash is writable for this object as well.
-    
+
       The meta object contains information about computed property descriptors as
       well as any watched properties and other information. You generally will
       not access this information directly but instead work with higher level
       methods that manipulate this hash indirectly.
-    
+
       @method meta
       @for Ember
       @private
-    
+
       @param {Object} obj The object to retrieve meta for
       @param {Boolean} [writable=true] Pass `false` if you do not intend to modify
         the meta hash, allowing the method to avoid making an unnecessary copy.
@@ -38738,7 +38738,7 @@ enifed('ember-meta/lib/meta', ['exports', 'ember-babel', '@ember/debug', '@ember
     }
     /**
       Returns the CP descriptor assocaited with `obj` and `keyName`, if any.
-    
+
       @method descriptorFor
       @param {Object} obj the object to check
       @param {String} keyName the key to check
@@ -38757,7 +38757,7 @@ enifed('ember-meta/lib/meta', ['exports', 'ember-babel', '@ember/debug', '@ember
     }
     /**
       Check whether a value is a CP descriptor.
-    
+
       @method descriptorFor
       @param {any} possibleDesc the value to check
       @return {boolean}
@@ -38775,7 +38775,7 @@ enifed('ember-meta/lib/meta', ['exports', 'ember-babel', '@ember/debug', '@ember
      actually happen. This implies that we should make listener creation &
      destruction cheap, even at the cost of making event dispatch more
      expensive.
-    
+
      Thus we store a new listener with a single push and no new
      allocations, without even bothering to do deduplication -- we can
      save that for dispatch time, if an event actually happens.
@@ -38804,7 +38804,7 @@ enifed('ember-metal', ['exports', 'ember-babel', '@ember/polyfills', 'ember-util
       This can be useful for peeking at the value of a computed
       property that is generated lazily, without accidentally causing
       it to be created.
-    
+
       @method cacheFor
       @static
       @for @ember/object/internals
@@ -38871,9 +38871,9 @@ enifed('ember-metal', ['exports', 'ember-babel', '@ember/polyfills', 'ember-util
       The event system uses a series of nested hashes to store listeners on an
       object. When a listener is registered, or when an event arrives, these
       hashes are consulted to determine which target and action pair to invoke.
-    
+
       The hashes are stored in the object's meta hash, and look like this:
-    
+
           // Object's meta hash
           {
             listeners: {       // variable name: `listenerSet`
@@ -38882,11 +38882,11 @@ enifed('ember-metal', ['exports', 'ember-babel', '@ember/polyfills', 'ember-util
               ]
             }
           }
-    
+
     */
     /**
       Add an event listener
-    
+
       @method addListener
       @static
       @for @ember/object/events
@@ -38917,9 +38917,9 @@ enifed('ember-metal', ['exports', 'ember-babel', '@ember/polyfills', 'ember-util
     }
     /**
       Remove an event listener
-    
+
       Arguments should match those passed to `addListener`.
-    
+
       @method removeListener
       @static
       @for @ember/object/events
@@ -38943,7 +38943,7 @@ enifed('ember-metal', ['exports', 'ember-babel', '@ember/polyfills', 'ember-util
       is skipped, and once listeners are removed. A listener without
       a target is executed on the passed object. If an array of actions
       is not passed, the actions stored on the passed object are invoked.
-    
+
       @method sendEvent
       @static
       @for @ember/object/events
@@ -39001,23 +39001,23 @@ enifed('ember-metal', ['exports', 'ember-babel', '@ember/polyfills', 'ember-util
     /**
       Define a property as a function that should be executed when
       a specified event or events are triggered.
-    
+
       ``` javascript
       import EmberObject from '@ember/object';
       import { on } from '@ember/object/evented';
       import { sendEvent } from '@ember/object/events';
-    
+
       let Job = EmberObject.extend({
         logCompleted: on('completed', function() {
           console.log('Job completed!');
         })
       });
-    
+
       let job = Job.create();
-    
+
       sendEvent(job, 'completed'); // Logs 'Job completed!'
      ```
-    
+
       @method on
       @static
       @for @ember/object/evented
@@ -39047,15 +39047,15 @@ enifed('ember-metal', ['exports', 'ember-babel', '@ember/polyfills', 'ember-util
     /**
       ObserverSet is a data structure used to keep track of observers
       that have been deferred.
-    
+
       It ensures that observers are called in the same order that they
       were initially triggered.
-    
+
       It also ensures that observers for any object-key pairs are called
       only once, even if they were triggered multiple times while
       deferred. In this case, the order that the observer is called in
       will depend on the first time the observer was triggered.
-    
+
       @private
       @class ObserverSet
     */
@@ -39362,11 +39362,11 @@ enifed('ember-metal', ['exports', 'ember-babel', '@ember/polyfills', 'ember-util
     /**
       This function is called just after an object property has changed.
       It will notify any observers and clear caches among other things.
-    
+
       Normally you will not need to call this method directly but if for some
       reason you can't directly watch a property you can invoke this method
       manually.
-    
+
       @method notifyPropertyChange
       @for Ember
       @param {Object} obj The object with the property that will change
@@ -39472,14 +39472,14 @@ enifed('ember-metal', ['exports', 'ember-babel', '@ember/polyfills', 'ember-util
     /**
       Make a series of property changes together in an
       exception-safe way.
-    
+
       ```javascript
       Ember.changeProperties(function() {
         obj1.set('foo', mayBlowUpWhenSet);
         obj2.set('bar', baz);
       });
       ```
-    
+
       @method changeProperties
       @param {Function} callback
       @private
@@ -39513,7 +39513,7 @@ enifed('ember-metal', ['exports', 'ember-babel', '@ember/polyfills', 'ember-util
     /**
       Objects of this type can implement an interface to respond to requests to
       get and set. The default implementation handles simple properties.
-    
+
       @class Descriptor
       @private
     */
@@ -39582,21 +39582,21 @@ enifed('ember-metal', ['exports', 'ember-babel', '@ember/polyfills', 'ember-util
       NOTE: This is a low-level method used by other parts of the API. You almost
       never want to call this method directly. Instead you should use
       `mixin()` to define new properties.
-    
+
       Defines a property on an object. This method works much like the ES5
       `Object.defineProperty()` method except that it can also accept computed
       properties and other special descriptors.
-    
+
       Normally this method takes only three parameters. However if you pass an
       instance of `Descriptor` as the third param then you can pass an
       optional value as the fourth parameter. This is often more efficient than
       creating new descriptor hashes for each property.
-    
+
       ## Examples
-    
+
       ```javascript
       import { defineProperty, computed } from '@ember/object';
-    
+
       // ES5 compatible mode
       defineProperty(contact, 'firstName', {
         writable: true,
@@ -39604,16 +39604,16 @@ enifed('ember-metal', ['exports', 'ember-babel', '@ember/polyfills', 'ember-util
         enumerable: true,
         value: 'Charles'
       });
-    
+
       // define a simple property
       defineProperty(contact, 'lastName', undefined, 'Jolley');
-    
+
       // define a computed property
       defineProperty(contact, 'fullName', computed('firstName', 'lastName', function() {
         return this.firstName+' '+this.lastName;
       }));
       ```
-    
+
       @public
       @method defineProperty
       @static
@@ -39879,7 +39879,7 @@ enifed('ember-metal', ['exports', 'ember-babel', '@ember/polyfills', 'ember-util
 
     /**
       An object that that tracks @tracked properties that were consumed.
-    
+
       @private
      */
 
@@ -39922,62 +39922,62 @@ enifed('ember-metal', ['exports', 'ember-babel', '@ember/polyfills', 'ember-util
     /**
       @decorator
       @private
-    
+
       Marks a property as tracked.
-    
+
       By default, a component's properties are expected to be static,
       meaning you are not able to update them and have the template update accordingly.
       Marking a property as tracked means that when that property changes,
       a rerender of the component is scheduled so the template is kept up to date.
-    
+
       There are two usages for the `@tracked` decorator, shown below.
-    
+
       @example No dependencies
-    
+
       If you don't pass an argument to `@tracked`, only changes to that property
       will be tracked:
-    
+
       ```typescript
       import Component, { tracked } from '@glimmer/component';
-    
+
       export default class MyComponent extends Component {
         @tracked
         remainingApples = 10
       }
       ```
-    
+
       When something changes the component's `remainingApples` property, the rerender
       will be scheduled.
-    
+
       @example Dependents
-    
+
       In the case that you have a computed property that depends other
       properties, you want to track both so that when one of the
       dependents change, a rerender is scheduled.
-    
+
       In the following example we have two properties,
       `eatenApples`, and `remainingApples`.
-    
+
       ```typescript
       import Component, { tracked } from '@glimmer/component';
-    
+
       const totalApples = 100;
-    
+
       export default class MyComponent extends Component {
         @tracked
         eatenApples = 0
-    
+
         @tracked('eatenApples')
         get remainingApples() {
           return totalApples - this.eatenApples;
         }
-    
+
         increment() {
           this.eatenApples = this.eatenApples + 1;
         }
       }
       ```
-    
+
       @param dependencies Optional dependents to be tracked.
      */
     function tracked(_target, key, descriptor) {
@@ -39989,15 +39989,15 @@ enifed('ember-metal', ['exports', 'ember-babel', '@ember/polyfills', 'ember-util
     }
     /**
       @private
-    
+
       Whenever a tracked computed property is entered, the current tracker is
       saved off and a new tracker is replaced.
-    
+
       Any tracked properties consumed are added to the current tracker.
-    
+
       When a tracked computed property is exited, the tracker's tags are
       combined and added to the parent tracker.
-    
+
       The consequence is that each tracked computed property has a tag
       that corresponds to the tracked properties consumed inside of
       itself, including child tracked computed properties.
@@ -40043,11 +40043,11 @@ enifed('ember-metal', ['exports', 'ember-babel', '@ember/polyfills', 'ember-util
     }
     /**
       @private
-    
+
       A getter/setter for change tracking for a particular key. The accessor
       acts just like a normal property, but it triggers the `propertyDidChange`
       hook when written to.
-    
+
       Values are saved on the object using a "shadow key," or a symbol based on the
       tracked property name. Sets write the value to the shadow key, and gets read
       from it.
@@ -40100,25 +40100,25 @@ enifed('ember-metal', ['exports', 'ember-babel', '@ember/polyfills', 'ember-util
       Gets the value of a property on an object. If the property is computed,
       the function will be invoked. If the property is not defined but the
       object implements the `unknownProperty` method then that will be invoked.
-    
+
       ```javascript
       import { get } from '@ember/object';
       get(obj, "name");
       ```
-    
+
       If you plan to run on IE8 and older browsers then you should use this
       method anytime you want to retrieve a property on an object that you don't
       know for sure is private. (Properties beginning with an underscore '_'
       are considered private.)
-    
+
       On all newer browsers, you only need to use this method to retrieve
       properties if the property might not be defined on the object and you want
       to respect the `unknownProperty` handler. Otherwise you can ignore this
       method.
-    
+
       Note that if the object itself is `undefined`, this method will throw
       an error.
-    
+
       @method get
       @for @ember/object
       @static
@@ -40198,12 +40198,12 @@ enifed('ember-metal', ['exports', 'ember-babel', '@ember/polyfills', 'ember-util
     /**
       Retrieves the value of a property from an Object, or a default value in the
       case that the property returns `undefined`.
-    
+
       ```javascript
       import { getWithDefault } from '@ember/object';
       getWithDefault(person, 'lastName', 'Doe');
       ```
-    
+
       @method getWithDefault
       @for @ember/object
       @static
@@ -40762,7 +40762,7 @@ enifed('ember-metal', ['exports', 'ember-babel', '@ember/polyfills', 'ember-util
       invokes `Ember.notifyPropertyChange`. This is the primitive used by observers
       and dependent keys; usually you will never call this method directly but instead
       use higher level methods like `addObserver()`.
-    
+
       @private
       @method watch
       @for Ember
@@ -40787,7 +40787,7 @@ enifed('ember-metal', ['exports', 'ember-babel', '@ember/polyfills', 'ember-util
     /**
       Stops watching a property on an object. Usually you will never call this method directly but instead
       use higher level methods like `removeObserver()`.
-    
+
       @private
       @method unwatch
       @for Ember
@@ -40843,17 +40843,17 @@ enifed('ember-metal', ['exports', 'ember-babel', '@ember/polyfills', 'ember-util
     var END_WITH_EACH_REGEX = /\.@each$/;
     /**
       Expands `pattern`, invoking `callback` for each expansion.
-    
+
       The only pattern supported is brace-expansion, anything else will be passed
       once to `callback` directly.
-    
+
       Example
-    
+
       ```js
       import { expandProperties } from '@ember/object/computed';
-    
+
       function echo(arg){ console.log(arg); }
-    
+
       expandProperties('foo.bar', echo);              //=> 'foo.bar'
       expandProperties('{foo,bar}', echo);            //=> 'foo', 'bar'
       expandProperties('foo.{bar,baz}', echo);        //=> 'foo.bar', 'foo.baz'
@@ -40862,7 +40862,7 @@ enifed('ember-metal', ['exports', 'ember-babel', '@ember/polyfills', 'ember-util
       expandProperties('{foo,bar}.{spam,eggs}', echo) //=> 'foo.spam', 'foo.eggs', 'bar.spam', 'bar.eggs'
       expandProperties('{foo}.bar.{baz}')             //=> 'foo.bar.baz'
       ```
-    
+
       @method expandProperties
       @static
       @for @ember/object/computed
@@ -40914,12 +40914,12 @@ enifed('ember-metal', ['exports', 'ember-babel', '@ember/polyfills', 'ember-util
       implements the `setUnknownProperty` method, then instead of setting the
       value of the property on the object, its `setUnknownProperty` handler
       will be invoked with the two parameters `keyName` and `value`.
-    
+
       ```javascript
       import { set } from '@ember/object';
       set(obj, "name", value);
       ```
-    
+
       @method set
       @static
       @for @ember/object
@@ -41024,17 +41024,17 @@ enifed('ember-metal', ['exports', 'ember-babel', '@ember/polyfills', 'ember-util
     /**
       Error-tolerant form of `set`. Will not blow up if any part of the
       chain is `undefined`, `null`, or destroyed.
-    
+
       This is primarily used when syncing bindings, which may try to update after
       an object has been destroyed.
-    
+
       ```javascript
       import { trySet } from '@ember/object';
-    
+
       let obj = { name: "Zoey" };
       trySet(obj, "contacts.twitter", "@emberjs");
       ```
-    
+
       @method trySet
       @static
       @for @ember/object
@@ -41054,110 +41054,110 @@ enifed('ember-metal', ['exports', 'ember-babel', '@ember/polyfills', 'ember-util
     function noop() {}
     /**
       A computed property transforms an object literal with object's accessor function(s) into a property.
-    
+
       By default the function backing the computed property will only be called
       once and the result will be cached. You can specify various properties
       that your computed property depends on. This will force the cached
       result to be recomputed if the dependencies are modified.
-    
+
       In the following example we declare a computed property - `fullName` - by calling
       `computed` with property dependencies (`firstName` and `lastName`) as leading arguments and getter accessor function. The `fullName` getter function
       will be called once (regardless of how many times it is accessed) as long
       as its dependencies have not changed. Once `firstName` or `lastName` are updated
       any future calls (or anything bound) to `fullName` will incorporate the new
       values.
-    
+
       ```javascript
       import EmberObject, { computed } from '@ember/object';
-    
+
       let Person = EmberObject.extend({
         // these will be supplied by `create`
         firstName: null,
         lastName: null,
-    
+
         fullName: computed('firstName', 'lastName', function() {
           let firstName = this.get('firstName'),
               lastName  = this.get('lastName');
-    
+
           return `${firstName} ${lastName}`;
         })
       });
-    
+
       let tom = Person.create({
         firstName: 'Tom',
         lastName: 'Dale'
       });
-    
+
       tom.get('fullName') // 'Tom Dale'
       ```
-    
+
       You can also define what Ember should do when setting a computed property by providing additional function (`set`) in hash argument.
       If you try to set a computed property, it will try to invoke setter accessor function with the key and
       value you want to set it to as arguments.
-    
+
       ```javascript
       import EmberObject, { computed } from '@ember/object';
-    
+
       let Person = EmberObject.extend({
         // these will be supplied by `create`
         firstName: null,
         lastName: null,
-    
+
         fullName: computed('firstName', 'lastName', {
           get(key) {
             let firstName = this.get('firstName'),
                 lastName  = this.get('lastName');
-    
+
             return firstName + ' ' + lastName;
           },
           set(key, value) {
             let [firstName, lastName] = value.split(' ');
-    
+
             this.set('firstName', firstName);
             this.set('lastName', lastName);
-    
+
             return value;
           }
         })
       });
-    
+
       let person = Person.create();
-    
+
       person.set('fullName', 'Peter Wagenet');
       person.get('firstName'); // 'Peter'
       person.get('lastName');  // 'Wagenet'
       ```
-    
+
       You can overwrite computed property with normal property (no longer computed), that won't change if dependencies change, if you set computed property and it won't have setter accessor function defined.
-    
+
       You can also mark computed property as `.readOnly()` and block all attempts to set it.
-    
+
       ```javascript
       import EmberObject, { computed } from '@ember/object';
-    
+
       let Person = EmberObject.extend({
         // these will be supplied by `create`
         firstName: null,
         lastName: null,
-    
+
         fullName: computed('firstName', 'lastName', {
           get(key) {
             let firstName = this.get('firstName');
             let lastName  = this.get('lastName');
-    
+
             return firstName + ' ' + lastName;
           }
         }).readOnly()
       });
-    
+
       let person = Person.create();
       person.set('fullName', 'Peter Wagenet'); // Uncaught Error: Cannot set read-only property "fullName" on object: <(...):emberXXX>
       ```
-    
+
       Additional resources:
       - [New CP syntax RFC](https://github.com/emberjs/rfcs/blob/master/text/0011-improved-cp-syntax.md)
       - [New computed syntax explained in "Ember 1.12 released" ](https://emberjs.com/blog/2015/05/13/ember-1-12-released.html#toc_new-computed-syntax)
-    
+
       @class ComputedProperty
       @public
     */
@@ -41406,48 +41406,48 @@ enifed('ember-metal', ['exports', 'ember-babel', '@ember/polyfills', 'ember-util
       This helper returns a new property descriptor that wraps the passed
       computed property function. You can use this helper to define properties
       with mixins or via `defineProperty()`.
-    
+
       If you pass a function as an argument, it will be used as a getter. A computed
       property defined in this way might look like this:
-    
+
       ```js
       import EmberObject, { computed } from '@ember/object';
-    
+
       let Person = EmberObject.extend({
         init() {
           this._super(...arguments);
-    
+
           this.firstName = 'Betty';
           this.lastName = 'Jones';
         },
-    
+
         fullName: computed('firstName', 'lastName', function() {
           return `${this.get('firstName')} ${this.get('lastName')}`;
         })
       });
-    
+
       let client = Person.create();
-    
+
       client.get('fullName'); // 'Betty Jones'
-    
+
       client.set('lastName', 'Fuller');
       client.get('fullName'); // 'Betty Fuller'
       ```
-    
+
       You can pass a hash with two functions, `get` and `set`, as an
       argument to provide both a getter and setter:
-    
+
       ```js
       import EmberObject, { computed } from '@ember/object';
-    
+
       let Person = EmberObject.extend({
         init() {
           this._super(...arguments);
-    
+
           this.firstName = 'Betty';
           this.lastName = 'Jones';
         },
-    
+
         fullName: computed('firstName', 'lastName', {
           get(key) {
             return `${this.get('firstName')} ${this.get('lastName')}`;
@@ -41459,29 +41459,29 @@ enifed('ember-metal', ['exports', 'ember-babel', '@ember/polyfills', 'ember-util
           }
         })
       });
-    
+
       let client = Person.create();
       client.get('firstName'); // 'Betty'
-    
+
       client.set('fullName', 'Carroll Fuller');
       client.get('firstName'); // 'Carroll'
       ```
-    
+
       The `set` function should accept two parameters, `key` and `value`. The value
       returned from `set` will be the new value of the property.
-    
+
       _Note: This is the preferred way to define computed properties when writing third-party
       libraries that depend on or use Ember, since there is no guarantee that the user
       will have [prototype Extensions](https://guides.emberjs.com/release/configuring-ember/disabling-prototype-extensions/) enabled._
-    
+
       The alternative syntax, with prototype extensions, might look like:
-    
+
       ```js
       fullName: function() {
         return this.get('firstName') + ' ' + this.get('lastName');
       }.property('firstName', 'lastName')
       ```
-    
+
       @method computed
       @for @ember/object
       @static
@@ -41603,7 +41603,7 @@ enifed('ember-metal', ['exports', 'ember-babel', '@ember/polyfills', 'ember-util
     /**
       Used internally to allow changing properties in a backwards compatible way, and print a helpful
       deprecation warning.
-    
+
       @method deprecateProperty
       @param {Object} object The object to add the deprecated property to.
       @param {String} deprecatedKey The property to add (and print deprecation warnings upon accessing).
@@ -41636,7 +41636,7 @@ enifed('ember-metal', ['exports', 'ember-babel', '@ember/polyfills', 'ember-util
       Returns true if the passed value is null or undefined. This avoids errors
       from JSLint complaining about use of ==, which can be technically
       confusing.
-    
+
       ```javascript
       isNone();              // true
       isNone(null);          // true
@@ -41645,7 +41645,7 @@ enifed('ember-metal', ['exports', 'ember-babel', '@ember/polyfills', 'ember-util
       isNone([]);            // false
       isNone(function() {}); // false
       ```
-    
+
       @method isNone
       @static
       @for @ember/utils
@@ -41663,13 +41663,13 @@ enifed('ember-metal', ['exports', 'ember-babel', '@ember/polyfills', 'ember-util
     /**
       Verifies that a value is `null` or `undefined`, an empty string, or an empty
       array.
-    
+
       Constrains the rules on `isNone` by returning true for empty strings and
       empty arrays.
-    
+
       If the value is an object with a `size` property of type number, it is used
       to check emptiness.
-    
+
       ```javascript
       isEmpty();                 // true
       isEmpty(null);             // true
@@ -41685,7 +41685,7 @@ enifed('ember-metal', ['exports', 'ember-babel', '@ember/polyfills', 'ember-util
       isEmpty({ size: 1 })       // false
       isEmpty({ size: () => 0 }) // false
       ```
-    
+
       @method isEmpty
       @static
       @for @ember/utils
@@ -41725,10 +41725,10 @@ enifed('ember-metal', ['exports', 'ember-babel', '@ember/polyfills', 'ember-util
     */
     /**
       A value is blank if it is empty or a whitespace string.
-    
+
       ```javascript
       import { isBlank } from '@ember/utils';
-    
+
       isBlank();                // true
       isBlank(null);            // true
       isBlank(undefined);       // true
@@ -41741,7 +41741,7 @@ enifed('ember-metal', ['exports', 'ember-babel', '@ember/polyfills', 'ember-util
       isBlank('Hello world');   // false
       isBlank([1,2,3]);         // false
       ```
-    
+
       @method isBlank
       @static
       @for @ember/utils
@@ -41759,7 +41759,7 @@ enifed('ember-metal', ['exports', 'ember-babel', '@ember/polyfills', 'ember-util
     */
     /**
       A value is present if it not `isBlank`.
-    
+
       ```javascript
       isPresent();                // false
       isPresent(null);            // false
@@ -41779,7 +41779,7 @@ enifed('ember-metal', ['exports', 'ember-babel', '@ember/polyfills', 'ember-util
       isPresent('\n\t Hello');    // true
       isPresent([1,2,3]);         // true
       ```
-    
+
       @method isPresent
       @static
       @for @ember/utils
@@ -41797,9 +41797,9 @@ enifed('ember-metal', ['exports', 'ember-babel', '@ember/polyfills', 'ember-util
     */
     /**
       Helper class that allows you to register your library with Ember.
-    
+
       Singleton created at `Ember.libraries`.
-    
+
       @class Libraries
       @constructor
       @private
@@ -41884,23 +41884,23 @@ enifed('ember-metal', ['exports', 'ember-babel', '@ember/polyfills', 'ember-util
     /**
       To get multiple properties at once, call `getProperties`
       with an object followed by a list of strings or an array:
-    
+
       ```javascript
       import { getProperties } from '@ember/object';
-    
+
       getProperties(record, 'firstName', 'lastName', 'zipCode');
       // { firstName: 'John', lastName: 'Doe', zipCode: '10011' }
       ```
-    
+
       is equivalent to:
-    
+
       ```javascript
       import { getProperties } from '@ember/object';
-    
+
       getProperties(record, ['firstName', 'lastName', 'zipCode']);
       // { firstName: 'John', lastName: 'Doe', zipCode: '10011' }
       ```
-    
+
       @method getProperties
       @static
       @for @ember/object
@@ -41930,18 +41930,18 @@ enifed('ember-metal', ['exports', 'ember-babel', '@ember/polyfills', 'ember-util
       Set a list of properties on an object. These properties are set inside
       a single `beginPropertyChanges` and `endPropertyChanges` batch, so
       observers will be buffered.
-    
+
       ```javascript
       import EmberObject from '@ember/object';
       let anObject = EmberObject.create();
-    
+
       anObject.setProperties({
         firstName: 'Stanley',
         lastName: 'Stuart',
         age: 21
       });
       ```
-    
+
       @method setProperties
       @static
       @for @ember/object
@@ -42405,10 +42405,10 @@ enifed('ember-metal', ['exports', 'ember-babel', '@ember/polyfills', 'ember-util
     /**
       The `Mixin` class allows you to create mixins, whose properties can be
       added to other classes. For instance,
-    
+
       ```javascript
       import Mixin from '@ember/object/mixin';
-    
+
       const EditableMixin = Mixin.create({
         edit() {
           console.log('starting to edit');
@@ -42417,47 +42417,47 @@ enifed('ember-metal', ['exports', 'ember-babel', '@ember/polyfills', 'ember-util
         isEditing: false
       });
       ```
-    
+
       ```javascript
       import EmberObject from '@ember/object';
       import EditableMixin from '../mixins/editable';
-    
+
       // Mix mixins into classes by passing them as the first arguments to
       // `.extend.`
       const Comment = EmberObject.extend(EditableMixin, {
         post: null
       });
-    
+
       let comment = Comment.create({
         post: somePost
       });
-    
+
       comment.edit(); // outputs 'starting to edit'
       ```
-    
+
       Note that Mixins are created with `Mixin.create`, not
       `Mixin.extend`.
-    
+
       Note that mixins extend a constructor's prototype so arrays and object literals
       defined as properties will be shared amongst objects that implement the mixin.
       If you want to define a property in a mixin that is not shared, you can define
       it either as a computed property or have it be created on initialization of the object.
-    
+
       ```javascript
       // filters array will be shared amongst any object implementing mixin
       import Mixin from '@ember/object/mixin';
       import { A } from '@ember/array';
-    
+
       const FilterableMixin = Mixin.create({
         filters: A()
       });
       ```
-    
+
       ```javascript
       import Mixin from '@ember/object/mixin';
       import { A } from '@ember/array';
       import { computed } from '@ember/object';
-    
+
       // filters will be a separate array for every object implementing the mixin
       const FilterableMixin = Mixin.create({
         filters: computed(function() {
@@ -42465,22 +42465,22 @@ enifed('ember-metal', ['exports', 'ember-babel', '@ember/polyfills', 'ember-util
         })
       });
       ```
-    
+
       ```javascript
       import Mixin from '@ember/object/mixin';
       import { A } from '@ember/array';
-    
+
       // filters will be created as a separate array during the object's initialization
       const Filterable = Mixin.create({
         filters: null,
-    
+
         init() {
           this._super(...arguments);
           this.set("filters", A());
         }
       });
       ```
-    
+
       @class Mixin
       @public
     */
@@ -42701,12 +42701,12 @@ enifed('ember-metal', ['exports', 'ember-babel', '@ember/polyfills', 'ember-util
 
     /**
       Makes a method available via an additional name.
-    
+
       ```app/utils/person.js
       import EmberObject, {
         aliasMethod
       } from '@ember/object';
-    
+
       export default EmberObject.extend({
         name() {
           return 'Tomhuda Katzdale';
@@ -42714,14 +42714,14 @@ enifed('ember-metal', ['exports', 'ember-babel', '@ember/polyfills', 'ember-util
         moniker: aliasMethod('name')
       });
       ```
-    
+
       ```javascript
       let goodGuy = Person.create();
-    
+
       goodGuy.name();    // 'Tomhuda Katzdale'
       goodGuy.moniker(); // 'Tomhuda Katzdale'
       ```
-    
+
       @method aliasMethod
       @static
       @for @ember/object
@@ -42736,21 +42736,21 @@ enifed('ember-metal', ['exports', 'ember-babel', '@ember/polyfills', 'ember-util
     //
     /**
       Specify a method that observes property changes.
-    
+
       ```javascript
       import EmberObject from '@ember/object';
       import { observer } from '@ember/object';
-    
+
       export default EmberObject.extend({
         valueObserver: observer('value', function() {
           // Executes whenever the "value" property changes
         })
       });
       ```
-    
+
       Also available as `Function.prototype.observes` if prototype extensions are
       enabled.
-    
+
       @method observer
       @for @ember/object
       @param {String} propertyNames*
@@ -42790,7 +42790,7 @@ enifed('ember-metal', ['exports', 'ember-babel', '@ember/polyfills', 'ember-util
      */
     /**
       Read-only property that returns the result of a container lookup.
-    
+
       @class InjectedProperty
       @namespace Ember
       @constructor
@@ -42850,7 +42850,7 @@ enifed('ember-metal', ['exports', 'ember-babel', '@ember/polyfills', 'ember-util
       A wrapper for a native ES5 descriptor. In an ideal world, we wouldn't need
       this at all, however, the way we currently flatten/merge our mixins require
       a special value to denote a descriptor.
-    
+
       @class Descriptor
       @private
     */
@@ -42983,19 +42983,19 @@ enifed('ember-owner/index', ['exports', 'ember-utils'], function (exports, _embe
     are created via a factory and dependency injection system. Each of these
     objects is the responsibility of an "owner", which handled its
     instantiation and manages its lifetime.
-  
+
     `getOwner` fetches the owner object responsible for an instance. This can
     be used to lookup or resolve other class instances, or register new factories
     into the owner.
-  
+
     For example, this component dynamically looks up a service based on the
     `audioType` passed as an attribute:
-  
+
     ```app/components/play-audio.js
     import Component from '@ember/component';
     import { computed } from '@ember/object';
     import { getOwner } from '@ember/application';
-  
+
     // Usage:
     //
     //   {{play-audio audioType=model.audioType audioFile=model.file}}
@@ -43005,14 +43005,14 @@ enifed('ember-owner/index', ['exports', 'ember-utils'], function (exports, _embe
         let owner = getOwner(this);
         return owner.lookup(`service:${this.get('audioType')}`);
       }),
-  
+
       click() {
         let player = this.get('audioService');
         player.play(this.get('audioFile'));
       }
     });
     ```
-  
+
     @method getOwner
     @static
     @for @ember/application
@@ -43030,7 +43030,7 @@ enifed('ember-owner/index', ['exports', 'ember-utils'], function (exports, _embe
   /**
     `setOwner` forces a new owner on a given object instance. This is primarily
     useful in some testing cases.
-  
+
     @method setOwner
     @static
     @for @ember/application
@@ -43402,13 +43402,13 @@ enifed('ember-routing/lib/location/auto_location', ['exports', 'ember-owner', 'e
     root URL, this function detects whether the browser supports the [History
     API](https://developer.mozilla.org/en-US/docs/Web/API/History) and returns a
     string representing the Location object to use based on its determination.
-  
+
     For example, if the page loads in an evergreen browser, this function would
     return the string "history", meaning the history API and thus HistoryLocation
     should be used. If the page is loaded in IE8, it will return the string
     "hash," indicating that the History API should be simulated by manipulating the
     hash portion of the location.
-  
+
   */
 
   function detectImplementation(options) {
@@ -43463,7 +43463,7 @@ enifed('ember-routing/lib/location/auto_location', ['exports', 'ember-owner', 'e
 
   /**
     @private
-  
+
     Returns the current path as it should appear for HistoryLocation supported
     browsers. This may very well differ from the real current path (e.g. if it
     starts off as a hashed URL)
@@ -43509,10 +43509,10 @@ enifed('ember-routing/lib/location/auto_location', ['exports', 'ember-owner', 'e
 
   /**
     @private
-  
+
     Returns the current path as it should appear for HashLocation supported
     browsers. This may very well differ from the real current path.
-  
+
     @method _getHashPath
   */
   function getHashPath(rootURL, location) {
@@ -43683,29 +43683,29 @@ enifed('ember-routing/lib/location/history_location', ['exports', 'ember-metal',
   /**
     HistoryLocation implements the location API using the browser's
     history.pushState API.
-  
+
     Using `HistoryLocation` results in URLs that are indistinguishable from a
     standard URL. This relies upon the browser's `history` API.
-  
+
     Example:
-  
+
     ```app/router.js
     Router.map(function() {
       this.route('posts', function() {
         this.route('new');
       });
     });
-  
+
     Router.reopen({
       location: 'history'
     });
     ```
-  
+
     This will result in a posts.new url of `/posts/new`.
-  
+
     Keep in mind that your server must serve the Ember app at all the routes you
     define.
-  
+
     @class HistoryLocation
     @extends EmberObject
     @protected
@@ -44067,7 +44067,7 @@ enifed('ember-routing/lib/location/util', ['exports'], function (exports) {
   exports.replacePath = replacePath;
   /**
     @private
-  
+
     Returns the current `location.pathname`, normalized for IE inconsistencies.
   */
   function getPath(location) {
@@ -44082,7 +44082,7 @@ enifed('ember-routing/lib/location/util', ['exports'], function (exports) {
 
   /**
     @private
-  
+
     Returns the current `location.search`.
   */
   function getQuery(location) {
@@ -44091,12 +44091,12 @@ enifed('ember-routing/lib/location/util', ['exports'], function (exports) {
 
   /**
     @private
-  
+
     Returns the current `location.hash` by parsing location.href since browsers
     inconsistently URL-decode `location.hash`.
-  
+
     Should be passed the browser's `location` object as the first argument.
-  
+
     https://bugzilla.mozilla.org/show_bug.cgi?id=483304
   */
   function getHash(location) {
@@ -44132,9 +44132,9 @@ enifed('ember-routing/lib/location/util', ['exports'], function (exports) {
   /*
     `documentMode` only exist in Internet Explorer, and it's tested because IE8 running in
     IE7 compatibility mode claims to support `onhashchange` but actually does not.
-  
+
     `global` is an object that may have an `onhashchange` property.
-  
+
     @private
     @function supportsHashChange
   */
@@ -44146,7 +44146,7 @@ enifed('ember-routing/lib/location/util', ['exports'], function (exports) {
     `userAgent` is a user agent string. We use user agent testing here, because
     the stock Android browser is known to have buggy versions of the History API,
     in some Android versions.
-  
+
     @private
     @function supportsHistory
   */
@@ -44168,7 +44168,7 @@ enifed('ember-routing/lib/location/util', ['exports'], function (exports) {
   /**
     Replaces the current location, making sure we explicitly include the origin
     to prevent redirecting to a different origin.
-  
+
     @private
   */
   function replacePath(location, path) {
@@ -44180,20 +44180,20 @@ enifed('ember-routing/lib/services/router', ['exports', '@ember/service', '@embe
 
   /**
      The Router service is the public API that provides access to the router.
-  
-     The immediate benefit of the Router service is that you can inject it into components, 
-     giving them a friendly way to initiate transitions and ask questions about the current 
+
+     The immediate benefit of the Router service is that you can inject it into components,
+     giving them a friendly way to initiate transitions and ask questions about the current
      global router state.
-  
-     In this example, the Router service is injected into a component to initiate a transition 
+
+     In this example, the Router service is injected into a component to initiate a transition
      to a dedicated route:
      ```javascript
      import Component from '@ember/component';
      import { inject as service } from '@ember/service';
-  
+
      export default Component.extend({
        router: service(),
-  
+
        actions: {
          next() {
            this.get('router').transitionTo('other.route');
@@ -44201,9 +44201,9 @@ enifed('ember-routing/lib/services/router', ['exports', '@ember/service', '@embe
        }
      });
      ```
-  
+
      Like any service, it can also be injected into helpers, routes, etc.
-  
+
      @public
      @class RouterService
      @category ember-routing-router-service
@@ -44488,7 +44488,7 @@ enifed("ember-routing/lib/system/controller_for", ["exports"], function (exports
 
   /**
     Finds a controller instance.
-  
+
     @for Ember
     @method controllerFor
     @private
@@ -44727,7 +44727,7 @@ enifed('ember-routing/lib/system/generate_controller', ['exports', 'ember-metal'
 
   /**
     Generates a controller factory
-  
+
     @for Ember
     @method generateControllerFactory
     @private
@@ -44752,7 +44752,7 @@ enifed('ember-routing/lib/system/generate_controller', ['exports', 'ember-metal'
   /**
     Generates and instantiates a controller extending from `controller:basic`
     if present, or `Controller` if not.
-  
+
     @for Ember
     @method generateController
     @private
@@ -44829,7 +44829,7 @@ enifed('ember-routing/lib/system/route', ['exports', '@ember/polyfills', '@ember
   /**
     The `Route` class is used to define individual routes. Refer to
     the [routing guide](https://guides.emberjs.com/release/routing/) for documentation.
-  
+
     @class Route
     @extends EmberObject
     @uses ActionHandler
@@ -46193,7 +46193,7 @@ enifed('ember-routing/lib/system/router', ['exports', 'ember-owner', '@ember/pol
   /**
     The `EmberRouter` class manages the application state and URLs. Refer to
     the [routing guide](https://guides.emberjs.com/release/routing/) for documentation.
-  
+
     @class EmberRouter
     @extends EmberObject
     @uses Evented
@@ -46977,9 +46977,9 @@ enifed('ember-routing/lib/system/router', ['exports', 'ember-owner', '@ember/pol
     and the handlerInfos given were for 'foo.bar.baz', then the given callback
     will be invoked with the routes for 'foo.bar', 'foo', and 'application'
     individually.
-  
+
     If the callback returns anything other than `true`, then iteration will stop.
-  
+
     @private
     @param {Route} originRoute
     @param {Array<HandlerInfo>} handlerInfos
@@ -47109,7 +47109,7 @@ enifed('ember-routing/lib/system/router', ['exports', 'ember-owner', '@ember/pol
   /**
     Finds the name of the substate route if it exists for the given route. A
     substate route is of the form `route_state`, such as `foo_loading`.
-  
+
     @private
     @param {Route} route
     @param {String} state
@@ -47132,7 +47132,7 @@ enifed('ember-routing/lib/system/router', ['exports', 'ember-owner', '@ember/pol
     Finds the name of the state route if it exists for the given route. A state
     route is of the form `route.state`, such as `foo.loading`. Properly Handles
     `application` named routes.
-  
+
     @private
     @param {Route} route
     @param {String} state
@@ -47154,7 +47154,7 @@ enifed('ember-routing/lib/system/router', ['exports', 'ember-owner', '@ember/pol
   /**
     Determines whether or not a route has been defined by checking that the route
     is in the Router's map and the owner has a registration for that route.
-  
+
     @private
     @param {Owner} owner
     @param {Router} router
@@ -47749,7 +47749,7 @@ enifed('ember-routing/lib/utils', ['exports', 'ember-owner', '@ember/polyfills',
 
   /*
     Controller-defined query parameters can come in three shapes:
-  
+
     Array
       queryParams: ['foo', 'bar']
     Array of simple objects where value is an alias
@@ -47775,7 +47775,7 @@ enifed('ember-routing/lib/utils', ['exports', 'ember-owner', '@ember/polyfills',
           }
         }
       ]
-  
+
     This helper normalizes all three possible styles into the
     'Array of fully defined objects' style.
   */
@@ -47817,7 +47817,7 @@ enifed('ember-routing/lib/utils', ['exports', 'ember-owner', '@ember/polyfills',
 
   /*
     Check if a routeName resembles a url instead
-  
+
     @private
   */
   function resemblesURL(str) {
@@ -47826,7 +47826,7 @@ enifed('ember-routing/lib/utils', ['exports', 'ember-owner', '@ember/polyfills',
 
   /*
     Returns an arguments array where the route name arg is prefixed based on the mount point
-  
+
     @private
   */
   function prefixRouteNameArg(route, args) {
@@ -48120,23 +48120,23 @@ enifed('ember-runtime/lib/compare', ['exports', 'ember-runtime/lib/type-of', 'em
 
   /**
    Compares two javascript values and returns:
-  
+
     - -1 if the first is smaller than the second,
     - 0 if both are equal,
     - 1 if the first is greater than the second.
-  
+
     ```javascript
     import { compare } from '@ember/utils';
-  
+
     compare('hello', 'hello');  // 0
     compare('abc', 'dfg');      // -1
     compare(2, 1);              // 1
     ```
-  
+
    If the types of the two objects are different precedence occurs in the
    following order, with types earlier in the list considered `<` types
    later in the list:
-  
+
     - undefined
     - null
     - boolean
@@ -48148,14 +48148,14 @@ enifed('ember-runtime/lib/compare', ['exports', 'ember-runtime/lib/type-of', 'em
     - function
     - class
     - date
-  
+
     ```javascript
     import { compare } from '@ember/utils';
-  
+
     compare('hello', 50);       // 1
     compare(50, 'hello');       // -1
     ```
-  
+
    @method compare
    @for @ember/utils
    @static
@@ -48298,14 +48298,14 @@ enifed('ember-runtime/lib/copy', ['exports', '@ember/debug', 'ember-runtime/lib/
   /**
     Creates a shallow copy of the passed object. A deep copy of the object is
     returned if the optional `deep` argument is `true`.
-  
+
     If the passed object implements the `Copyable` interface, then this
     function will delegate to the object's `copy()` method and return the
     result. See `Copyable` for further details.
-  
+
     For primitive values (which are immutable in JavaScript), the passed object
     is simply returned.
-  
+
     @method copy
     @deprecated Use 'ember-copy' addon instead
     @static
@@ -48535,42 +48535,42 @@ enifed('ember-runtime/lib/is-equal', ['exports'], function (exports) {
   */
   /**
     Compares two objects, returning true if they are equal.
-  
+
     ```javascript
     import { isEqual } from '@ember/utils';
-  
+
     isEqual('hello', 'hello');                   // true
     isEqual(1, 2);                               // false
     ```
-  
+
     `isEqual` is a more specific comparison than a triple equal comparison.
     It will call the `isEqual` instance method on the objects being
     compared, allowing finer control over when objects should be considered
     equal to each other.
-  
+
     ```javascript
     import { isEqual } from '@ember/utils';
     import EmberObject from '@ember/object';
-  
+
     let Person = EmberObject.extend({
       isEqual(other) { return this.ssn == other.ssn; }
     });
-  
+
     let personA = Person.create({name: 'Muhammad Ali', ssn: '123-45-6789'});
     let personB = Person.create({name: 'Cassius Clay', ssn: '123-45-6789'});
-  
+
     isEqual(personA, personB); // true
     ```
-  
+
     Due to the expense of array comparisons, collections will never be equal to
     each other even if each of their items are equal to each other.
-  
+
     ```javascript
     import { isEqual } from '@ember/utils';
-  
+
     isEqual([4, 2], [4, 2]);                     // false
     ```
-  
+
     @method isEqual
     @for @ember/utils
     @static
@@ -48619,7 +48619,7 @@ enifed('ember-runtime/lib/mixins/-proxy', ['exports', '@glimmer/reference', 'emb
   /**
     `Ember.ProxyMixin` forwards all properties not defined by the proxy itself
     to a proxied `content` object.  See ObjectProxy for more details.
-  
+
     @class ProxyMixin
     @namespace Ember
     @private
@@ -48694,7 +48694,7 @@ enifed('ember-runtime/lib/mixins/action_handler', ['exports', 'ember-metal', '@e
     (Internally the mixin is used by `Ember.CoreView`, `Ember.ControllerMixin`,
     and `Route` and available to the above classes through
     inheritance.)
-  
+
     @class ActionHandler
     @namespace Ember
     @private
@@ -48835,25 +48835,25 @@ enifed('ember-runtime/lib/mixins/array', ['exports', '@ember/deprecated-features
 
   /**
     Returns true if the passed object is an array or Array-like.
-  
+
     Objects are considered Array-like if any of the following are true:
-  
+
       - the object is a native Array
       - the object has an objectAt property
       - the object is an Object, and has a length property
-  
+
     Unlike `typeOf` this method returns true even if the passed object is
     not formally an array but appears to be array-like (i.e. implements `Array`)
-  
+
     ```javascript
     import { isArray } from '@ember/array';
     import ArrayProxy from '@ember/array/proxy';
-  
+
     isArray();                                      // false
     isArray([]);                                    // true
     isArray(ArrayProxy.create({ content: [] }));    // true
     ```
-  
+
     @method isArray
     @static
     @for @ember/array
@@ -48895,30 +48895,30 @@ enifed('ember-runtime/lib/mixins/array', ['exports', '@ember/deprecated-features
     This mixin implements Observer-friendly Array-like behavior. It is not a
     concrete implementation, but it can be used up by other classes that want
     to appear like arrays.
-  
+
     For example, ArrayProxy is a concrete classes that can
     be instantiated to implement array-like behavior. Both of these classes use
     the Array Mixin by way of the MutableArray mixin, which allows observable
     changes to be made to the underlying array.
-  
+
     This mixin defines methods specifically for collections that provide
     index-ordered access to their contents. When you are designing code that
     needs to accept any kind of Array-like object, you should use these methods
     instead of Array primitives because these will properly notify observers of
     changes to the array.
-  
+
     Although these methods are efficient, they do add a layer of indirection to
     your application so it is a good idea to use them only when you need the
     flexibility of using both true JavaScript arrays and "virtual" arrays such
     as controllers and collections.
-  
+
     You can use the methods defined in this module to access and modify array
     contents in a KVO-friendly way. You can also be notified whenever the
     membership of an array changes by using `.observes('myArray.[]')`.
-  
+
     To support `EmberArray` in your own class, you must override two
     primitives to use it: `length()` and `objectAt()`.
-  
+
     @class EmberArray
     @uses Enumerable
     @since Ember 0.9.0
@@ -49171,16 +49171,16 @@ enifed('ember-runtime/lib/mixins/array', ['exports', '@ember/deprecated-features
     can be applied only to a collection that keeps its items in an ordered set.
     It builds upon the Array mixin and adds methods to modify the array.
     One concrete implementations of this class include ArrayProxy.
-  
+
     It is important to use the methods in this class to modify arrays so that
     changes are observable. This allows the binding system in Ember to function
     correctly.
-  
-  
+
+
     Note that an Array can change even if it does not implement this mixin.
     For example, one might implement a SparseArray that cannot be directly
     modified, but if its underlying enumerable changes, it will change also.
-  
+
     @class MutableArray
     @uses EmberArray
     @uses MutableEnumerable
@@ -49309,20 +49309,20 @@ enifed('ember-runtime/lib/mixins/array', ['exports', '@ember/deprecated-features
     it is recommended that you use `A()` when creating addons for
     ember or when you can not guarantee that `EmberENV.EXTEND_PROTOTYPES`
     will be `true`.
-  
+
     Example
-  
+
     ```app/components/my-component.js
     import Component from '@ember/component';
     import { A } from '@ember/array';
-  
+
     export default Component.extend({
       tagName: 'ul',
       classNames: ['pagination'],
-  
+
       init() {
         this._super(...arguments);
-  
+
         if (!this.get('content')) {
           this.set('content', A());
           this.set('otherContent', A([1,2,3]));
@@ -49330,7 +49330,7 @@ enifed('ember-runtime/lib/mixins/array', ['exports', '@ember/deprecated-features
       }
     });
     ```
-  
+
     @method A
     @static
     @for @ember/array
@@ -49350,7 +49350,7 @@ enifed('ember-runtime/lib/mixins/array', ['exports', '@ember/deprecated-features
     have `EmberENV.EXTEND_PROTOTYPES` or `EmberENV.EXTEND_PROTOTYPES.Array` set to
     false, this will be applied automatically. Otherwise you can apply the mixin
     at anytime by calling `Ember.NativeArray.apply(Array.prototype)`.
-  
+
     @class Ember.NativeArray
     @uses MutableArray
     @uses Observable
@@ -49444,7 +49444,7 @@ enifed('ember-runtime/lib/mixins/container_proxy', ['exports', '@ember/runloop',
   /**
     ContainerProxyMixin is used to provide public access to specific
     container functionality.
-  
+
     @class ContainerProxyMixin
     @private
   */
@@ -50009,64 +50009,64 @@ enifed('ember-runtime/lib/mixins/promise_proxy', ['exports', 'ember-metal', '@em
 
   /**
     A low level mixin making ObjectProxy promise-aware.
-  
+
     ```javascript
     import { resolve } from 'rsvp';
     import $ from 'jquery';
     import ObjectProxy from '@ember/object/proxy';
     import PromiseProxyMixin from '@ember/object/promise-proxy-mixin';
-  
+
     let ObjectPromiseProxy = ObjectProxy.extend(PromiseProxyMixin);
-  
+
     let proxy = ObjectPromiseProxy.create({
       promise: resolve($.getJSON('/some/remote/data.json'))
     });
-  
+
     proxy.then(function(json){
        // the json
     }, function(reason) {
        // the reason why you have no json
     });
     ```
-  
+
     the proxy has bindable attributes which
     track the promises life cycle
-  
+
     ```javascript
     proxy.get('isPending')   //=> true
     proxy.get('isSettled')  //=> false
     proxy.get('isRejected')  //=> false
     proxy.get('isFulfilled') //=> false
     ```
-  
+
     When the $.getJSON completes, and the promise is fulfilled
     with json, the life cycle attributes will update accordingly.
     Note that $.getJSON doesn't return an ECMA specified promise,
     it is useful to wrap this with an `RSVP.resolve` so that it behaves
     as a spec compliant promise.
-  
+
     ```javascript
     proxy.get('isPending')   //=> false
     proxy.get('isSettled')   //=> true
     proxy.get('isRejected')  //=> false
     proxy.get('isFulfilled') //=> true
     ```
-  
+
     As the proxy is an ObjectProxy, and the json now its content,
     all the json properties will be available directly from the proxy.
-  
+
     ```javascript
     // Assuming the following json:
     {
       firstName: 'Stefan',
       lastName: 'Penner'
     }
-  
+
     // both properties will accessible on the proxy
     proxy.get('firstName') //=> 'Stefan'
     proxy.get('lastName')  //=> 'Penner'
     ```
-  
+
     @class PromiseProxyMixin
     @public
   */
@@ -50565,29 +50565,29 @@ enifed('ember-runtime/lib/system/array_proxy', ['exports', 'ember-babel', 'ember
     `MutableArray,` forwarding all requests. This makes it very useful for
     a number of binding use cases or other cases where being able to swap
     out the underlying array is useful.
-  
+
     A simple example of usage:
-  
+
     ```javascript
     import { A } from '@ember/array';
     import ArrayProxy from '@ember/array/proxy';
-  
+
     let pets = ['dog', 'cat', 'fish'];
     let ap = ArrayProxy.create({ content: A(pets) });
-  
+
     ap.get('firstObject');                        // 'dog'
     ap.set('content', ['amoeba', 'paramecium']);
     ap.get('firstObject');                        // 'amoeba'
     ```
-  
+
     This class can also be useful as a layer to transform the contents of
     an array, as they are accessed. This can be done by overriding
     `objectAtContent`:
-  
+
     ```javascript
     import { A } from '@ember/array';
     import ArrayProxy from '@ember/array/proxy';
-  
+
     let pets = ['dog', 'cat', 'fish'];
     let ap = ArrayProxy.create({
         content: A(pets),
@@ -50595,18 +50595,18 @@ enifed('ember-runtime/lib/system/array_proxy', ['exports', 'ember-babel', 'ember
             return this.get('content').objectAt(idx).toUpperCase();
         }
     });
-  
+
     ap.get('firstObject'); // . 'DOG'
     ```
-  
+
     When overriding this class, it is important to place the call to
     `_super` *after* setting `content` so the internal observers have
     a chance to fire properly:
-  
+
     ```javascript
     import { A } from '@ember/array';
     import ArrayProxy from '@ember/array/proxy';
-  
+
     export default ArrayProxy.extend({
       init() {
         this.set('content', A(['dog', 'cat', 'fish']));
@@ -50614,7 +50614,7 @@ enifed('ember-runtime/lib/system/array_proxy', ['exports', 'ember-babel', 'ember
       }
     });
     ```
-  
+
     @class ArrayProxy
     @extends EmberObject
     @uses MutableArray
@@ -51318,7 +51318,7 @@ enifed('ember-runtime/lib/system/object', ['exports', 'ember-babel', 'container'
     `EmberObject` is the main base class for all Ember objects. It is a subclass
     of `CoreObject` with the `Observable` mixin applied. For details,
     see the documentation for each of these.
-  
+
     @class EmberObject
     @extends CoreObject
     @uses Observable
@@ -51444,11 +51444,11 @@ enifed('ember-runtime/lib/type-of', ['exports', 'ember-runtime/lib/system/object
   */
   /**
     Returns a consistent type for the passed object.
-  
+
     Use this instead of the built-in `typeof` to get the type of an item.
     It will return the same result across all browsers and includes a bit
     more detail. Here is what will be returned:
-  
+
         | Return Value  | Meaning                                              |
         |---------------|------------------------------------------------------|
         | 'string'      | String primitive or String object.                   |
@@ -51465,14 +51465,14 @@ enifed('ember-runtime/lib/type-of', ['exports', 'ember-runtime/lib/system/object
         | 'instance'    | An Ember object instance                             |
         | 'error'       | An instance of the Error object                      |
         | 'object'      | A JavaScript object not inheriting from EmberObject  |
-  
+
     Examples:
-  
+
     ```javascript
     import { A } from '@ember/array';
     import { typeOf } from '@ember/utils';
     import EmberObject from '@ember/object';
-  
+
     typeOf();                       // 'undefined'
     typeOf(null);                   // 'null'
     typeOf(undefined);              // 'undefined'
@@ -51490,11 +51490,11 @@ enifed('ember-runtime/lib/type-of', ['exports', 'ember-runtime/lib/system/object
     typeOf(EmberObject.extend());   // 'class'
     typeOf(EmberObject.create());   // 'instance'
     typeOf(new Error('teamocil'));  // 'error'
-  
+
     // 'normal' JavaScript object
     typeOf({ a: 'b' });             // 'object'
     ```
-  
+
     @method typeOf
     @for @ember/utils
     @param {Object} item the item to check
@@ -51571,7 +51571,7 @@ enifed('ember-testing/lib/adapters/adapter', ['exports', 'ember-runtime'], funct
   /**
     The primary purpose of this class is to create hooks that can be implemented
     by an adapter for various test frameworks.
-  
+
     @class TestAdapter
     @public
   */
@@ -51987,15 +51987,15 @@ enifed('ember-testing/lib/helpers/click', ['exports', 'ember-testing/lib/events'
   /**
     Clicks an element and triggers any actions triggered by the element's `click`
     event.
-  
+
     Example:
-  
+
     ```javascript
     click('.some-jQuery-selector').then(function() {
       // assert something
     });
     ```
-  
+
     @method click
     @param {String} selector jQuery selector for finding element on the DOM
     @param {Object} context A DOM Element, Document, or jQuery to use as context
@@ -52026,17 +52026,17 @@ enifed('ember-testing/lib/helpers/current_path', ['exports', 'ember-metal'], fun
 
   /**
     Returns the current path.
-  
+
   Example:
-  
+
   ```javascript
   function validateURL() {
     equal(currentPath(), 'some.path.index', "correct path was transitioned into.");
   }
-  
+
   click('#some-link-id').then(validateURL);
   ```
-  
+
   @method currentPath
   @return {Object} The currently active path.
   @since 1.5.0
@@ -52056,16 +52056,16 @@ enifed('ember-testing/lib/helpers/current_route_name', ['exports', 'ember-metal'
 
   /**
     Returns the currently active route name.
-  
+
   Example:
-  
+
   ```javascript
   function validateRouteName() {
     equal(currentRouteName(), 'some.path', "correct route was transitioned into.");
   }
   visit('/some/path').then(validateRouteName)
   ```
-  
+
   @method currentRouteName
   @return {Object} The name of the currently active route.
   @since 1.5.0
@@ -52086,17 +52086,17 @@ enifed('ember-testing/lib/helpers/current_url', ['exports', 'ember-metal'], func
 
   /**
     Returns the current URL.
-  
+
   Example:
-  
+
   ```javascript
   function validateURL() {
     equal(currentURL(), '/some/path', "correct URL was transitioned into.");
   }
-  
+
   click('#some-link-id').then(validateURL);
   ```
-  
+
   @method currentURL
   @return {Object} The currently active URL.
   @since 1.5.0
@@ -52117,15 +52117,15 @@ enifed('ember-testing/lib/helpers/fill_in', ['exports', 'ember-testing/lib/event
 
   /**
     Fills in an input element with some text.
-  
+
     Example:
-  
+
     ```javascript
     fillIn('#email', 'you@example.com').then(function() {
       // assert something
     });
     ```
-  
+
     @method fillIn
     @param {String} selector jQuery selector finding an input element on the DOM
     to fill text with
@@ -52170,19 +52170,19 @@ enifed('ember-testing/lib/helpers/find', ['exports', 'ember-metal', '@ember/debu
   /**
     Finds an element in the context of the app's container element. A simple alias
     for `app.$(selector)`.
-  
+
     Example:
-  
+
     ```javascript
     var $el = find('.my-selector');
     ```
-  
+
     With the `context` param:
-  
+
     ```javascript
     var $el = find('.my-selector', '.parent-element-class');
     ```
-  
+
     @method find
     @param {String} selector jQuery selector for element lookup
     @param {String} [context] (optional) jQuery selector that will limit the selector
@@ -52211,19 +52211,19 @@ enifed('ember-testing/lib/helpers/find_with_assert', ['exports'], function (expo
   */
   /**
     Like `find`, but throws an error if the element selector returns no results.
-  
+
     Example:
-  
+
     ```javascript
     var $el = findWithAssert('.doesnt-exist'); // throws error
     ```
-  
+
     With the `context` param:
-  
+
     ```javascript
     var $el = findWithAssert('.selector-id', '.parent-element-class'); // assert will pass
     ```
-  
+
     @method findWithAssert
     @param {String} selector jQuery selector string for finding an element within
     the DOM
@@ -52295,7 +52295,7 @@ enifed('ember-testing/lib/helpers/pause_test', ['exports', 'ember-runtime', '@em
 
   /**
    Resumes a test paused by `pauseTest`.
-  
+
    @method resumeTest
    @return {void}
    @public
@@ -52311,34 +52311,34 @@ enifed('ember-testing/lib/helpers/pause_test', ['exports', 'ember-runtime', '@em
    Pauses the current test - this is useful for debugging while testing or for test-driving.
    It allows you to inspect the state of your application at any point.
    Example (The test will pause before clicking the button):
-  
+
    ```javascript
    visit('/')
    return pauseTest();
    click('.btn');
    ```
-  
+
    You may want to turn off the timeout before pausing.
-  
+
    qunit (as of 2.4.0):
-  
+
    ```
    visit('/');
    assert.timeout(0);
    return pauseTest();
    click('.btn');
    ```
-  
+
    mocha:
-  
+
    ```
    visit('/');
    this.timeout(0);
    return pauseTest();
    click('.btn');
    ```
-  
-  
+
+
    @since 1.9.0
    @method pauseTest
    @return {Object} A promise that will never resolve
@@ -52430,15 +52430,15 @@ enifed('ember-testing/lib/helpers/visit', ['exports', '@ember/runloop'], functio
     Loads a route, sets up any controllers, and renders any templates associated
     with the route as though a real user had triggered the route change while
     using your app.
-  
+
     Example:
-  
+
     ```javascript
     visit('posts/index').then(function() {
       // assert something
     });
     ```
-  
+
     @method visit
     @param {String} url the name of the route
     @return {RSVP.Promise<undefined>}
@@ -52476,19 +52476,19 @@ enifed('ember-testing/lib/helpers/wait', ['exports', 'ember-testing/lib/test/wai
   /**
     Causes the run loop to process any pending events. This is used to ensure that
     any async operations from other helpers (or your assertions) have been processed.
-  
+
     This is most often used as the return value for the helper functions (see 'click',
     'fillIn','visit',etc). However, there is a method to register a test helper which
     utilizes this method without the need to actually call `wait()` in your helpers.
-  
+
     The `wait` helper is built into `registerAsyncHelper` by default. You will not need
     to `return app.testHelpers.wait();` - the wait behavior is provided for you.
-  
+
     Example:
-  
+
     ```javascript
     import { registerAsyncHelper } from '@ember/test';
-  
+
     registerAsyncHelper('loginUser', function(app, username, password) {
       visit('secured/path/here')
         .fillIn('#username', username)
@@ -52496,7 +52496,7 @@ enifed('ember-testing/lib/helpers/wait', ['exports', 'ember-testing/lib/test/wai
         .click('.submit');
     });
     ```
-  
+
     @method wait
     @param {Object} value The value to be returned.
     @return {RSVP.Promise<any>} Promise that resolves to the passed value.
@@ -52569,10 +52569,10 @@ enifed('ember-testing/lib/setup_for_testing', ['exports', '@ember/debug', 'ember
   /**
     Sets Ember up for testing. This is useful to perform
     basic setup steps in order to unit test.
-  
+
     Use `App.setupForTesting` to perform integration tests (full
     application testing).
-  
+
     @method setupForTesting
     @namespace Ember
     @since 1.5.0
@@ -52613,7 +52613,7 @@ enifed('ember-testing/lib/support', ['@ember/debug', 'ember-views', 'ember-brows
     This method creates a checkbox and triggers the click event to fire the
     passed in handler. It is used to correct for a bug in older versions
     of jQuery (e.g 1.8.3).
-  
+
     @private
     @method testCheckboxClick
   */
@@ -52658,12 +52658,12 @@ enifed('ember-testing/lib/test', ['exports', 'ember-testing/lib/test/helpers', '
 
   /**
     This is a container for an assortment of testing related functionality:
-  
+
     * Choose your default test adapter (for your framework of choice).
     * Register/Unregister additional test helpers.
     * Setup callbacks to be fired when the test helpers are injected into
       your application.
-  
+
     @class Test
     @namespace Ember
     @public
@@ -52692,17 +52692,17 @@ enifed('ember-testing/lib/test', ['exports', 'ember-testing/lib/test/helpers', '
   /**
    Used to allow ember-testing to communicate with a specific testing
    framework.
-  
+
    You can manually set it before calling `App.setupForTesting()`.
-  
+
    Example:
-  
+
    ```javascript
    Ember.Test.adapter = MyCustomAdapter.create()
    ```
-  
+
    If you do not set it, ember-testing will default to `Ember.Test.QUnitAdapter`.
-  
+
    @public
    @for Ember.Test
    @property adapter
@@ -52775,32 +52775,32 @@ enifed('ember-testing/lib/test/helpers', ['exports', 'ember-testing/lib/test/pro
   /**
     `registerHelper` is used to register a test helper that will be injected
     when `App.injectTestHelpers` is called.
-  
+
     The helper method will always be called with the current Application as
     the first parameter.
-  
+
     For example:
-  
+
     ```javascript
     import { registerHelper } from '@ember/test';
     import { run } from '@ember/runloop';
-  
+
     registerHelper('boot', function(app) {
       run(app, app.advanceReadiness);
     });
     ```
-  
+
     This helper can later be called without arguments because it will be
     called with `app` as the first parameter.
-  
+
     ```javascript
     import Application from '@ember/application';
-  
+
     App = Application.create();
     App.injectTestHelpers();
     boot();
     ```
-  
+
     @public
     @for @ember/test
     @static
@@ -52819,42 +52819,42 @@ enifed('ember-testing/lib/test/helpers', ['exports', 'ember-testing/lib/test/pro
   /**
     `registerAsyncHelper` is used to register an async test helper that will be injected
     when `App.injectTestHelpers` is called.
-  
+
     The helper method will always be called with the current Application as
     the first parameter.
-  
+
     For example:
-  
+
     ```javascript
     import { registerAsyncHelper } from '@ember/test';
     import { run } from '@ember/runloop';
-  
+
     registerAsyncHelper('boot', function(app) {
       run(app, app.advanceReadiness);
     });
     ```
-  
+
     The advantage of an async helper is that it will not run
     until the last async helper has completed.  All async helpers
     after it will wait for it complete before running.
-  
-  
+
+
     For example:
-  
+
     ```javascript
     import { registerAsyncHelper } from '@ember/test';
-  
+
     registerAsyncHelper('deletePost', function(app, postId) {
       click('.delete-' + postId);
     });
-  
+
     // ... in your test
     visit('/post/2');
     deletePost(2);
     visit('/post/3');
     deletePost(3);
     ```
-  
+
     @public
     @for @ember/test
     @method registerAsyncHelper
@@ -52871,15 +52871,15 @@ enifed('ember-testing/lib/test/helpers', ['exports', 'ember-testing/lib/test/pro
 
   /**
     Remove a previously added helper method.
-  
+
     Example:
-  
+
     ```javascript
     import { unregisterHelper } from '@ember/test';
-  
+
     unregisterHelper('wait');
     ```
-  
+
     @public
     @method unregisterHelper
     @static
@@ -52901,25 +52901,25 @@ enifed("ember-testing/lib/test/on_inject_helpers", ["exports"], function (export
   /**
     Used to register callbacks to be fired whenever `App.injectTestHelpers`
     is called.
-  
+
     The callback will receive the current application as an argument.
-  
+
     Example:
-  
+
     ```javascript
     import $ from 'jquery';
-  
+
     Ember.Test.onInjectHelpers(function() {
       $(document).ajaxSend(function() {
         Test.pendingRequests++;
       });
-  
+
       $(document).ajaxComplete(function() {
         Test.pendingRequests--;
       });
     });
     ```
-  
+
     @public
     @for Ember.Test
     @method onInjectHelpers
@@ -53013,9 +53013,9 @@ enifed('ember-testing/lib/test/promise', ['exports', 'ember-babel', 'ember-runti
     This returns a thenable tailored for testing.  It catches failed
     `onSuccess` callbacks and invokes the `Ember.Test.adapter.exception`
     callback in the last chained then.
-  
+
     This method should be returned by async helpers such as `wait`.
-  
+
     @public
     @for Ember.Test
     @method promise
@@ -53031,7 +53031,7 @@ enifed('ember-testing/lib/test/promise', ['exports', 'ember-babel', 'ember-runti
     Replacement for `Ember.RSVP.resolve`
     The only difference is this uses
     an instance of `Ember.Test.Promise`
-  
+
     @public
     @for Ember.Test
     @method resolve
@@ -53106,27 +53106,27 @@ enifed("ember-testing/lib/test/waiters", ["exports"], function (exports) {
      after each async helper (i.e. `click`, `andThen`, `visit`, etc) has executed,
      until the returning result is truthy. After the waiters finish, the next async helper
      is executed and the process repeats.
-  
+
      For example:
-  
+
      ```javascript
      import { registerWaiter } from '@ember/test';
-  
+
      registerWaiter(function() {
        return myPendingTransactions() === 0;
      });
      ```
      The `context` argument allows you to optionally specify the `this`
      with which your callback will be invoked.
-  
+
      For example:
-  
+
      ```javascript
      import { registerWaiter } from '@ember/test';
-  
+
      registerWaiter(MyDB, MyDB.hasPendingTransactions);
      ```
-  
+
      @public
      @for @ember/test
      @static
@@ -53150,7 +53150,7 @@ enifed("ember-testing/lib/test/waiters", ["exports"], function (exports) {
   /**
      `unregisterWaiter` is used to unregister a callback that was
      registered with `registerWaiter`.
-  
+
      @public
      @for @ember/test
      @static
@@ -53179,10 +53179,10 @@ enifed("ember-testing/lib/test/waiters", ["exports"], function (exports) {
     Iterates through each registered test waiter, and invokes
     its callback. If any waiter returns false, this method will return
     true indicating that the waiters have not settled yet.
-  
+
     This is generally used internally from the acceptance/integration test
     infrastructure.
-  
+
     @public
     @for @ember/test
     @static
@@ -53217,40 +53217,40 @@ enifed('ember-utils', ['exports', 'ember-babel'], function (exports, _emberBabel
     exports.Cache = exports.setProxy = exports.isProxy = exports.WeakSet = exports.HAS_NATIVE_PROXY = exports.HAS_NATIVE_SYMBOL = exports.toString = exports.setName = exports.getName = exports.makeArray = exports.tryInvoke = exports.canInvoke = exports.lookupDescriptor = exports.inspect = exports.setListeners = exports.setObservers = exports.getListeners = exports.getObservers = exports.wrap = exports.ROOT = exports.checkHasSuper = exports.intern = exports.guidFor = exports.generateGuid = exports.GUID_KEY = exports.uuid = exports.dictionary = exports.isInternalSymbol = exports.symbol = exports.NAME_KEY = undefined;
     /**
       Strongly hint runtimes to intern the provided string.
-    
+
       When do I need to use this function?
-    
+
       For the most part, never. Pre-mature optimization is bad, and often the
       runtime does exactly what you need it to, and more often the trade-off isn't
       worth it.
-    
+
       Why?
-    
+
       Runtimes store strings in at least 2 different representations:
       Ropes and Symbols (interned strings). The Rope provides a memory efficient
       data-structure for strings created from concatenation or some other string
       manipulation like splitting.
-    
+
       Unfortunately checking equality of different ropes can be quite costly as
       runtimes must resort to clever string comparison algorithms. These
       algorithms typically cost in proportion to the length of the string.
       Luckily, this is where the Symbols (interned strings) shine. As Symbols are
       unique by their string content, equality checks can be done by pointer
       comparison.
-    
+
       How do I know if my string is a rope or symbol?
-    
+
       Typically (warning general sweeping statement, but truthy in runtimes at
       present) static strings created as part of the JS source are interned.
       Strings often used for comparisons can be interned at runtime if some
       criteria are met.  One of these criteria can be the size of the entire rope.
       For example, in chrome 38 a rope longer then 12 characters will not
       intern, nor will segments of that rope.
-    
+
       Some numbers: http://jsperf.com/eval-vs-keys/8
-    
+
       Known Trick™
-    
+
       @private
       @return {String} interned version of the provided string
     */
@@ -53267,12 +53267,12 @@ enifed('ember-utils', ['exports', 'ember-babel'], function (exports, _emberBabel
 
     /**
       Returns whether Type(value) is Object.
-    
+
       Useful for checking whether a value is a valid WeakMap key.
-    
+
       Refs: https://tc39.github.io/ecma262/#sec-typeof-operator-runtime-semantics-evaluation
             https://tc39.github.io/ecma262/#sec-weakmap.prototype.set
-    
+
       @private
       @function isObject
     */
@@ -53286,7 +53286,7 @@ enifed('ember-utils', ['exports', 'ember-babel'], function (exports, _emberBabel
     /**
      Previously we used `Ember.$.uuid`, however `$.uuid` has been removed from
      jQuery master. We'll just bootstrap our own uuid now.
-    
+
      @private
      @return {Number} the uuid
      */
@@ -53295,7 +53295,7 @@ enifed('ember-utils', ['exports', 'ember-babel'], function (exports, _emberBabel
      Generates a universally unique identifier. This method
      is used internally by Ember for assisting with
      the generation of GUID's and other unique identifiers.
-    
+
      @public
      @return {Number} [description]
      */
@@ -53318,10 +53318,10 @@ enifed('ember-utils', ['exports', 'ember-babel'], function (exports, _emberBabel
       A unique key used to assign guids and other private metadata to objects.
       If you inspect an object in your browser debugger you will often see these.
       They can be safely ignored.
-    
+
       On browsers that support it, these properties are added with enumeration
       disabled so they won't show up when you iterate over your properties.
-    
+
       @private
       @property GUID_KEY
       @for Ember
@@ -53333,7 +53333,7 @@ enifed('ember-utils', ['exports', 'ember-babel'], function (exports, _emberBabel
       Generates a new guid, optionally saving the guid to the object that you
       pass in. You will rarely need to use this method. Instead you should
       call `guidFor(obj)`, which return an existing guid if available.
-    
+
       @private
       @method generateGuid
       @static
@@ -53341,7 +53341,7 @@ enifed('ember-utils', ['exports', 'ember-babel'], function (exports, _emberBabel
       @param {Object} [obj] Object the guid will be used for. If passed in, the guid will
         be saved on the object and reused whenever you pass the same object
         again.
-    
+
         If no object is passed, just generate a new guid.
       @param {String} [prefix] Prefix to place in front of the guid. Useful when you want to
         separate the guid into separate namespaces.
@@ -53360,9 +53360,9 @@ enifed('ember-utils', ['exports', 'ember-babel'], function (exports, _emberBabel
       Returns a unique id for the object. If the object does not yet have a guid,
       one will be assigned to it. You can call this on any object,
       `EmberObject`-based or not.
-    
+
       You can also use this method on DOM Element objects.
-    
+
       @public
       @static
       @method guidFor
@@ -53496,7 +53496,7 @@ enifed('ember-utils', ['exports', 'ember-babel'], function (exports, _emberBabel
       Wraps the passed function so that `this._super` will point to the superFunc
       when the function is invoked. This is the primitive we use to implement
       calls to super.
-    
+
       @private
       @method wrap
       @for Ember
@@ -53543,10 +53543,10 @@ enifed('ember-utils', ['exports', 'ember-babel'], function (exports, _emberBabel
     /**
       Convenience method to inspect an object. This method will attempt to
       convert the object into a useful string description.
-    
+
       It is a pretty simple implementation. If you want something more robust,
       use something like JSDump: https://github.com/NV/jsDump
-    
+
       @method inspect
       @static
       @param {Object} obj The object you want to inspect.
@@ -53648,15 +53648,15 @@ enifed('ember-utils', ['exports', 'ember-babel'], function (exports, _emberBabel
 
     /**
       Checks to see if the `methodName` exists on the `obj`.
-    
+
       ```javascript
       let foo = { bar: function() { return 'bar'; }, baz: null };
-    
+
       Ember.canInvoke(foo, 'bar'); // true
       Ember.canInvoke(foo, 'baz'); // false
       Ember.canInvoke(foo, 'bat'); // false
       ```
-    
+
       @method canInvoke
       @for Ember
       @param {Object} obj The object to check for the method
@@ -53673,17 +53673,17 @@ enifed('ember-utils', ['exports', 'ember-babel'], function (exports, _emberBabel
     /**
       Checks to see if the `methodName` exists on the `obj`,
       and if it does, invokes it with the arguments passed.
-    
+
       ```javascript
       import { tryInvoke } from '@ember/utils';
-    
+
       let d = new Date('03/15/2013');
-    
+
       tryInvoke(d, 'getTime');              // 1363320000000
       tryInvoke(d, 'setFullYear', [2014]);  // 1394856000000
       tryInvoke(d, 'noSuchMethod', [2014]); // undefined
       ```
-    
+
       @method tryInvoke
       @for @ember/utils
       @static
@@ -53821,10 +53821,10 @@ enifed('ember-utils', ['exports', 'ember-babel'], function (exports, _emberBabel
     /*
      This package will be eagerly parsed and should have no dependencies on external
      packages.
-    
+
      It is intended to be used to share utility methods that will be needed
      by every Ember application (and is **not** a dumping ground of useful utilities).
-    
+
      Utility methods that are needed in < 80% of cases should be placed
      elsewhere (so they can be lazily evaluated / parsed).
     */
@@ -54357,22 +54357,22 @@ enifed('ember-views/lib/mixins/text_support', ['exports', 'ember-metal', 'ember-
     value of the field passed in as the only argument unless the value of
     the field is empty. In that case, the instance of the field itself is passed
     in as the only argument.
-  
+
     Let's use the pressing of the escape key as an example. If you wanted to
     invoke a controller action when a user presses the escape key while on your
     field, you would use the `escape-press` attribute on your field like so:
-  
+
     ```handlebars
       {{! application.hbs}}
-  
+
       {{input escape-press='alertUser'}}
     ```
-  
+
     ```javascript
         import Application from '@ember/application';
         import Controller from '@ember/controller';
         App = Application.create();
-  
+
         App.ApplicationController = Controller.extend({
           actions: {
             alertUser: function ( currentValue ) {
@@ -54381,10 +54381,10 @@ enifed('ember-views/lib/mixins/text_support', ['exports', 'ember-metal', 'ember-
           }
         });
     ```
-  
+
     The following chart is a visual representation of what takes place when the
     escape key is pressed in this scenario:
-  
+
     ```
     The Template
     +---------------------------+
@@ -54411,15 +54411,15 @@ enifed('ember-views/lib/mixins/text_support', ['exports', 'ember-metal', 'ember-
     |                                           |
     +-------------------------------------------+
     ```
-  
+
     Here are the events that we currently support along with the name of the
     attribute you would need to use on your field. To reiterate, you would use the
     attribute name like so:
-  
+
     ```handlebars
       {{input attribute-name='controllerAction'}}
     ```
-  
+
     ```
     +--------------------+----------------+
     |                    |                |
@@ -54442,7 +54442,7 @@ enifed('ember-views/lib/mixins/text_support', ['exports', 'ember-metal', 'ember-
     | keydown            | key-down       |
     +--------------------+----------------+
     ```
-  
+
     @class TextSupport
     @namespace Ember
     @uses Ember.TargetActionSupport
@@ -55076,7 +55076,7 @@ enifed("ember-views/lib/system/action_manager", ["exports"], function (exports)
 
   /**
     Global action id hash.
-  
+
     @private
     @property registeredActions
     @type Object
@@ -55103,7 +55103,7 @@ enifed('ember-views/lib/system/event_dispatcher', ['exports', 'ember-owner', '@e
     corresponding `Ember.Views.` For example, when you click on a view,
     `Ember.EventDispatcher` ensures that that view's `mouseDown` method gets
     called.
-  
+
     @class EventDispatcher
     @namespace Ember
     @private
@@ -55780,10 +55780,10 @@ enifed('ember-views/lib/system/utils', ['exports', 'ember-owner', 'ember-utils']
   /**
     `getViewClientRects` provides information about the position of the border
     box edges of a view relative to the viewport.
-  
+
     It is only intended to be used by development tools like the Ember Inspector
     and may not work on older browsers.
-  
+
     @private
     @method getViewClientRects
     @param {Ember.View} view
@@ -55796,10 +55796,10 @@ enifed('ember-views/lib/system/utils', ['exports', 'ember-owner', 'ember-utils']
   /**
     `getViewBoundingClientRect` provides information about the position of the
     bounding border box edges of a view relative to the viewport.
-  
+
     It is only intended to be used by development tools like the Ember Inspector
     and may not work on older browsers.
-  
+
     @private
     @method getViewBoundingClientRect
     @param {Ember.View} view
@@ -55811,7 +55811,7 @@ enifed('ember-views/lib/system/utils', ['exports', 'ember-owner', 'ember-utils']
 
   /**
     Determines if the element matches the specified selector.
-  
+
     @private
     @method matches
     @param {DOMElement} el
@@ -55885,10 +55885,10 @@ enifed('ember-views/lib/views/core_view', ['exports', 'ember-runtime', 'ember-vi
     `Ember.CoreView` is an abstract class that exists to give view-like behavior
     to both Ember's main view class `Component` and other classes that don't need
     the full functionality of `Component`.
-  
+
     Unless you have specific needs for `CoreView`, you will use `Component`
     in your applications.
-  
+
     @class CoreView
     @namespace Ember
     @extends EmberObject
@@ -55980,7 +55980,7 @@ enifed('ember-views/lib/views/states', ['exports', '@ember/polyfills', 'ember-vi
   /*
     Describe how the specified actions should behave in the various
     states that a view can exist in. Possible states:
-  
+
     * preRender: when a view is first instantiated, and after its
       element was destroyed, it is in the preRender state
     * hasElement: the DOM representation of the view is created,
@@ -56290,10 +56290,10 @@ enifed('ember/index', ['exports', 'require', 'ember-environment', 'node-module',
     A function may be assigned to `Ember.onerror` to be called when Ember
     internals encounter an error. This is useful for specialized error handling
     and reporting code.
-  
+
     ```javascript
     import $ from 'jquery';
-  
+
     Ember.onerror = function(error) {
       $.ajax('/report-error', 'POST', {
         stack: error.stack,
@@ -56301,9 +56301,9 @@ enifed('ember/index', ['exports', 'require', 'ember-environment', 'node-module',
       });
     };
     ```
-  
+
     Internally, `Ember.onerror` is used as Backburner's error handler.
-  
+
     @event onerror
     @for Ember
     @param {Exception} error the error object
@@ -56353,7 +56353,7 @@ enifed('ember/index', ['exports', 'require', 'ember-environment', 'node-module',
 
   /**
     Namespace for injection helper methods.
-  
+
     @class inject
     @namespace Ember
     @static
@@ -56432,7 +56432,7 @@ enifed('ember/index', ['exports', 'require', 'ember-environment', 'node-module',
     Defines the hash of localized strings for the current language. Used by
     the `String.loc` helper. To localize, add string values to this
     hash.
-  
+
     @property STRINGS
     @for Ember
     @type Object
@@ -56446,13 +56446,13 @@ enifed('ember/index', ['exports', 'require', 'ember-environment', 'node-module',
 
   /**
     Whether searching on the global for new Namespace instances is enabled.
-  
+
     This is only exported here as to not break any addons.  Given the new
     visit API, you will have issues if you treat this as a indicator of
     booted.
-  
+
     Internally this is only exposing a flag in Namespace.
-  
+
     @property BOOTED
     @for Ember
     @type Boolean
@@ -56497,7 +56497,7 @@ enifed('ember/index', ['exports', 'require', 'ember-environment', 'node-module',
     Global hash of shared templates. This will automatically be populated
     by the build tools so that you can store your Handlebars templates in
     separate files that get loaded into JavaScript at buildtime.
-  
+
     @property TEMPLATES
     @for Ember
     @type Object
@@ -56512,7 +56512,7 @@ enifed('ember/index', ['exports', 'require', 'ember-environment', 'node-module',
 
   /**
     The semantic version
-  
+
     @property VERSION
     @type String
     @public
@@ -56594,7 +56594,7 @@ enifed('ember/index', ['exports', 'require', 'ember-environment', 'node-module',
 
   /**
     Alias for jQuery
-  
+
     @for jquery
     @method $
     @static
@@ -57322,7 +57322,7 @@ enifed('router', ['exports', 'ember-babel', 'rsvp', 'route-recognizer'], functio
 
   /**
     @private
-  
+
     Extracts query params from the end of an array
   **/
   function extractQueryParams(array) {
@@ -57341,7 +57341,7 @@ enifed('router', ['exports', 'ember-babel', 'rsvp', 'route-recognizer'], functio
 
   /**
     @private
-  
+
     Coerces query param properties and array elements into strings.
   **/
   function coerceQueryParamsToString(queryParams) {
@@ -57644,7 +57644,7 @@ enifed('router', ['exports', 'ember-babel', 'rsvp', 'route-recognizer'], functio
     explicitly via `abort` or by attempting another transition while a
     previous one is still underway. An aborted transition can also
     be `retry()`d later.
-  
+
     @class Transition
     @constructor
     @param {Object} router
@@ -57831,7 +57831,7 @@ enifed('router', ['exports', 'ember-babel', 'rsvp', 'route-recognizer'], functio
 
   /**
     @private
-  
+
     Logs and returns an instance of TransitionAborted.
    */
   function logAbort(transition) {
@@ -58823,7 +58823,7 @@ enifed('router', ['exports', 'ember-babel', 'rsvp', 'route-recognizer'], functio
 
   /**
     @private
-  
+
     Fires queryParamsDidChange event
   */
   function fireQueryParamDidChange(router, newState, queryParamChangelist) {
@@ -58840,14 +58840,14 @@ enifed('router', ['exports', 'ember-babel', 'rsvp', 'route-recognizer'], functio
 
   /**
     @private
-  
+
     Takes an Array of `HandlerInfo`s, figures out which ones are
     exiting, entering, or changing contexts, and calls the
     proper handler hooks.
-  
+
     For example, consider the following tree of handlers. Each handler is
     followed by the URL segment it handles.
-  
+
     ```
     |~index ("/")
     | |~posts ("/posts")
@@ -58856,9 +58856,9 @@ enifed('router', ['exports', 'ember-babel', 'rsvp', 'route-recognizer'], functio
     | | |-editPost ("/edit")
     | |~about ("/about/:id")
     ```
-  
+
     Consider the following transitions:
-  
+
     1. A URL transition to `/posts/1`.
        1. Triggers the `*model` callbacks on the
           `index`, `posts`, and `showPost` handlers
@@ -58875,7 +58875,7 @@ enifed('router', ['exports', 'ember-babel', 'rsvp', 'route-recognizer'], functio
        2. Triggers the `serialize` callback on `about`
        3. Triggers the `enter` callback on `about`
        4. Triggers the `setup` callback on `about`
-  
+
     @param {Router} transition
     @param {TransitionState} newState
   */
@@ -58919,7 +58919,7 @@ enifed('router', ['exports', 'ember-babel', 'rsvp', 'route-recognizer'], functio
 
   /**
     @private
-  
+
     Helper method used by setupContexts. Handles errors or redirects
     that may happen in enter/setup.
   */
@@ -58959,15 +58959,15 @@ enifed('router', ['exports', 'ember-babel', 'rsvp', 'route-recognizer'], functio
 
   /**
     @private
-  
+
     This function is called when transitioning from one URL to
     another to determine which handlers are no longer active,
     which handlers are newly active, and which handlers remain
     active but have their context changed.
-  
+
     Take a list of old handlers and new handlers and partition
     them into four buckets:
-  
+
     * unchanged: the handler was active in both the old and
       new URL, and its context remains the same
     * updated context: the handler was active in both the
@@ -58978,9 +58978,9 @@ enifed('router', ['exports', 'ember-babel', 'rsvp', 'route-recognizer'], functio
       no longer active.
     * entered: the handler was not active in the old URL, but
       is now active.
-  
+
     The PartitionedHandlers structure has four fields:
-  
+
     * `updatedContext`: a list of `HandlerInfo` objects that
       represent handlers that remain active but have a changed
       context
@@ -58989,13 +58989,13 @@ enifed('router', ['exports', 'ember-babel', 'rsvp', 'route-recognizer'], functio
     * `exited`: a list of `HandlerInfo` objects that are no
       longer active.
     * `unchanged`: a list of `HanderInfo` objects that remain active.
-  
+
     @param {Array[HandlerInfo]} oldHandlers a list of the handler
       information for the previous URL (or `[]` if this is the
       first handled transition)
     @param {Array[HandlerInfo]} newHandlers a list of the handler
       information for the new URL
-  
+
     @return {Partition}
   */
   function partitionHandlers(oldState, newState) {
@@ -59110,7 +59110,7 @@ enifed('router', ['exports', 'ember-babel', 'rsvp', 'route-recognizer'], functio
 
   /**
     @private
-  
+
     Updates the URL (if necessary) and calls `setupContexts`
     to update the router's array of `currentHandlerInfos`.
    */
@@ -59160,11 +59160,11 @@ enifed('router', ['exports', 'ember-babel', 'rsvp', 'route-recognizer'], functio
 
   /**
     @private
-  
+
     Begins and returns a Transition based on the provided
     arguments. Accepts arguments in the form of both URL
     transitions and named transitions.
-  
+
     @param {Router} router
     @param {Array[Object]} args arguments passed to transitionTo,
       replaceWith, or handleURL
@@ -59449,27 +59449,27 @@ enifed('rsvp', ['exports', 'ember-babel', 'node-module'], function (exports, _em
   /**
     `RSVP.Promise.resolve` returns a promise that will become resolved with the
     passed `value`. It is shorthand for the following:
-  
+
     ```javascript
     let promise = new RSVP.Promise(function(resolve, reject){
       resolve(1);
     });
-  
+
     promise.then(function(value){
       // value === 1
     });
     ```
-  
+
     Instead of writing the above, your code now simply becomes the following:
-  
+
     ```javascript
     let promise = RSVP.Promise.resolve(1);
-  
+
     promise.then(function(value){
       // value === 1
     });
     ```
-  
+
     @method resolve
     @static
     @param {*} object value that the returned promise will be resolved with
@@ -59889,39 +59889,39 @@ enifed('rsvp', ['exports', 'ember-babel', 'node-module'], function (exports, _em
     is fulfilled with an array of fulfillment values for the passed promises, or
     rejected with the reason of the first passed promise to be rejected. It casts all
     elements of the passed iterable to promises as it runs this algorithm.
-  
+
     Example:
-  
+
     ```javascript
     let promise1 = RSVP.resolve(1);
     let promise2 = RSVP.resolve(2);
     let promise3 = RSVP.resolve(3);
     let promises = [ promise1, promise2, promise3 ];
-  
+
     RSVP.Promise.all(promises).then(function(array){
       // The array here would be [ 1, 2, 3 ];
     });
     ```
-  
+
     If any of the `promises` given to `RSVP.all` are rejected, the first promise
     that is rejected will be given as an argument to the returned promises's
     rejection handler. For example:
-  
+
     Example:
-  
+
     ```javascript
     let promise1 = RSVP.resolve(1);
     let promise2 = RSVP.reject(new Error("2"));
     let promise3 = RSVP.reject(new Error("3"));
     let promises = [ promise1, promise2, promise3 ];
-  
+
     RSVP.Promise.all(promises).then(function(array){
       // Code here never runs because there are rejected promises!
     }, function(error) {
       // error.message === "2"
     });
     ```
-  
+
     @method all
     @static
     @param {Array} entries array of promises
@@ -59941,47 +59941,47 @@ enifed('rsvp', ['exports', 'ember-babel', 'node-module'], function (exports, _em
   /**
     `RSVP.Promise.race` returns a new promise which is settled in the same way as the
     first passed promise to settle.
-  
+
     Example:
-  
+
     ```javascript
     let promise1 = new RSVP.Promise(function(resolve, reject){
       setTimeout(function(){
         resolve('promise 1');
       }, 200);
     });
-  
+
     let promise2 = new RSVP.Promise(function(resolve, reject){
       setTimeout(function(){
         resolve('promise 2');
       }, 100);
     });
-  
+
     RSVP.Promise.race([promise1, promise2]).then(function(result){
       // result === 'promise 2' because it was resolved before promise1
       // was resolved.
     });
     ```
-  
+
     `RSVP.Promise.race` is deterministic in that only the state of the first
     settled promise matters. For example, even if other promises given to the
     `promises` array argument are resolved, but the first settled promise has
     become rejected before the other promises became fulfilled, the returned
     promise will become rejected:
-  
+
     ```javascript
     let promise1 = new RSVP.Promise(function(resolve, reject){
       setTimeout(function(){
         resolve('promise 1');
       }, 200);
     });
-  
+
     let promise2 = new RSVP.Promise(function(resolve, reject){
       setTimeout(function(){
         reject(new Error('promise 2'));
       }, 100);
     });
-  
+
     RSVP.Promise.race([promise1, promise2]).then(function(result){
       // Code here never runs
     }, function(reason){
@@ -59989,13 +59989,13 @@ enifed('rsvp', ['exports', 'ember-babel', 'node-module'], function (exports, _em
       // promise 1 became fulfilled
     });
     ```
-  
+
     An example real-world use case is implementing timeouts:
-  
+
     ```javascript
     RSVP.Promise.race([ajax('foo.json'), timeout(5000)])
     ```
-  
+
     @method race
     @static
     @param {Array} entries array of promises to observe
@@ -60029,31 +60029,31 @@ enifed('rsvp', ['exports', 'ember-babel', 'node-module'], function (exports, _em
   /**
     `RSVP.Promise.reject` returns a promise rejected with the passed `reason`.
     It is shorthand for the following:
-  
+
     ```javascript
     let promise = new RSVP.Promise(function(resolve, reject){
       reject(new Error('WHOOPS'));
     });
-  
+
     promise.then(function(value){
       // Code here doesn't run because the promise is rejected!
     }, function(reason){
       // reason.message === 'WHOOPS'
     });
     ```
-  
+
     Instead of writing the above, your code now simply becomes the following:
-  
+
     ```javascript
     let promise = RSVP.Promise.reject(new Error('WHOOPS'));
-  
+
     promise.then(function(value){
       // Code here doesn't run because the promise is rejected!
     }, function(reason){
       // reason.message === 'WHOOPS'
     });
     ```
-  
+
     @method reject
     @static
     @param {*} reason value that the returned promise will be rejected with.
@@ -60085,66 +60085,66 @@ enifed('rsvp', ['exports', 'ember-babel', 'node-module'], function (exports, _em
     primary way of interacting with a promise is through its `then` method, which
     registers callbacks to receive either a promise’s eventual value or the reason
     why the promise cannot be fulfilled.
-  
+
     Terminology
     -----------
-  
+
     - `promise` is an object or function with a `then` method whose behavior conforms to this specification.
     - `thenable` is an object or function that defines a `then` method.
     - `value` is any legal JavaScript value (including undefined, a thenable, or a promise).
     - `exception` is a value that is thrown using the throw statement.
     - `reason` is a value that indicates why a promise was rejected.
     - `settled` the final resting state of a promise, fulfilled or rejected.
-  
+
     A promise can be in one of three states: pending, fulfilled, or rejected.
-  
+
     Promises that are fulfilled have a fulfillment value and are in the fulfilled
     state.  Promises that are rejected have a rejection reason and are in the
     rejected state.  A fulfillment value is never a thenable.
-  
+
     Promises can also be said to *resolve* a value.  If this value is also a
     promise, then the original promise's settled state will match the value's
     settled state.  So a promise that *resolves* a promise that rejects will
     itself reject, and a promise that *resolves* a promise that fulfills will
     itself fulfill.
-  
-  
+
+
     Basic Usage:
     ------------
-  
+
     ```js
     let promise = new Promise(function(resolve, reject) {
       // on success
       resolve(value);
-  
+
       // on failure
       reject(reason);
     });
-  
+
     promise.then(function(value) {
       // on fulfillment
     }, function(reason) {
       // on rejection
     });
     ```
-  
+
     Advanced Usage:
     ---------------
-  
+
     Promises shine when abstracting away asynchronous interactions such as
     `XMLHttpRequest`s.
-  
+
     ```js
     function getJSON(url) {
       return new Promise(function(resolve, reject){
         let xhr = new XMLHttpRequest();
-  
+
         xhr.open('GET', url);
         xhr.onreadystatechange = handler;
         xhr.responseType = 'json';
         xhr.setRequestHeader('Accept', 'application/json');
         xhr.send();
-  
+
         function handler() {
           if (this.readyState === this.DONE) {
             if (this.status === 200) {
@@ -60156,16 +60156,16 @@ enifed('rsvp', ['exports', 'ember-babel', 'node-module'], function (exports, _em
         };
       });
     }
-  
+
     getJSON('/posts.json').then(function(json) {
       // on fulfillment
     }, function(reason) {
       // on rejection
     });
     ```
-  
+
     Unlike callbacks, promises are great composable primitives.
-  
+
     ```js
     Promise.all([
       getJSON('/posts'),
@@ -60173,11 +60173,11 @@ enifed('rsvp', ['exports', 'ember-babel', 'node-module'], function (exports, _em
     ]).then(function(values){
       values[0] // => postsJSON
       values[1] // => commentsJSON
-  
+
       return values;
     });
     ```
-  
+
     @class RSVP.Promise
     @param {function} resolver
     @param {String} label optional string for labeling the promise.
@@ -60247,7 +60247,7 @@ enifed('rsvp', ['exports', 'ember-babel', 'node-module'], function (exports, _em
     The primary way of interacting with a promise is through its `then` method,
     which registers callbacks to receive either a promise's eventual value or the
     reason why the promise cannot be fulfilled.
-  
+
     ```js
     findUser().then(function(user){
       // user is available
@@ -60255,14 +60255,14 @@ enifed('rsvp', ['exports', 'ember-babel', 'node-module'], function (exports, _em
       // user is unavailable, and you are given the reason why
     });
     ```
-  
+
     Chaining
     --------
-  
+
     The return value of `then` is itself a promise.  This second, 'downstream'
     promise is resolved with the return value of the first promise's fulfillment
     or rejection handler, or rejected if the handler throws an exception.
-  
+
     ```js
     findUser().then(function (user) {
       return user.name;
@@ -60272,7 +60272,7 @@ enifed('rsvp', ['exports', 'ember-babel', 'node-module'], function (exports, _em
       // If `findUser` fulfilled, `userName` will be the user's name, otherwise it
       // will be `'default name'`
     });
-  
+
     findUser().then(function (user) {
       throw new Error('Found user, but still unhappy');
     }, function (reason) {
@@ -60285,7 +60285,7 @@ enifed('rsvp', ['exports', 'ember-babel', 'node-module'], function (exports, _em
     });
     ```
     If the downstream promise does not specify a rejection handler, rejection reasons will be propagated further downstream.
-  
+
     ```js
     findUser().then(function (user) {
       throw new PedagogicalException('Upstream error');
@@ -60297,15 +60297,15 @@ enifed('rsvp', ['exports', 'ember-babel', 'node-module'], function (exports, _em
       // The `PedgagocialException` is propagated all the way down to here
     });
     ```
-  
+
     Assimilation
     ------------
-  
+
     Sometimes the value you want to propagate to a downstream promise can only be
     retrieved asynchronously. This can be achieved by returning a promise in the
     fulfillment or rejection handler. The downstream promise will then be pending
     until the returned promise is settled. This is called *assimilation*.
-  
+
     ```js
     findUser().then(function (user) {
       return findCommentsByAuthor(user);
@@ -60313,9 +60313,9 @@ enifed('rsvp', ['exports', 'ember-babel', 'node-module'], function (exports, _em
       // The user's comments are now available
     });
     ```
-  
+
     If the assimliated promise rejects, then the downstream promise will also reject.
-  
+
     ```js
     findUser().then(function (user) {
       return findCommentsByAuthor(user);
@@ -60325,15 +60325,15 @@ enifed('rsvp', ['exports', 'ember-babel', 'node-module'], function (exports, _em
       // If `findCommentsByAuthor` rejects, we'll have the reason here
     });
     ```
-  
+
     Simple Example
     --------------
-  
+
     Synchronous Example
-  
+
     ```javascript
     let result;
-  
+
     try {
       result = findResult();
       // success
@@ -60341,9 +60341,9 @@ enifed('rsvp', ['exports', 'ember-babel', 'node-module'], function (exports, _em
       // failure
     }
     ```
-  
+
     Errback Example
-  
+
     ```js
     findResult(function(result, err){
       if (err) {
@@ -60353,9 +60353,9 @@ enifed('rsvp', ['exports', 'ember-babel', 'node-module'], function (exports, _em
       }
     });
     ```
-  
+
     Promise Example;
-  
+
     ```javascript
     findResult().then(function(result){
       // success
@@ -60363,15 +60363,15 @@ enifed('rsvp', ['exports', 'ember-babel', 'node-module'], function (exports, _em
       // failure
     });
     ```
-  
+
     Advanced Example
     --------------
-  
+
     Synchronous Example
-  
+
     ```javascript
     let author, books;
-  
+
     try {
       author = findAuthor();
       books  = findBooksByAuthor(author);
@@ -60380,19 +60380,19 @@ enifed('rsvp', ['exports', 'ember-babel', 'node-module'], function (exports, _em
       // failure
     }
     ```
-  
+
     Errback Example
-  
+
     ```js
-  
+
     function foundBooks(books) {
-  
+
     }
-  
+
     function failure(reason) {
-  
+
     }
-  
+
     findAuthor(function(author, err){
       if (err) {
         failure(err);
@@ -60417,9 +60417,9 @@ enifed('rsvp', ['exports', 'ember-babel', 'node-module'], function (exports, _em
       }
     });
     ```
-  
+
     Promise Example;
-  
+
     ```javascript
     findAuthor().
       then(findBooksByAuthor).
@@ -60429,7 +60429,7 @@ enifed('rsvp', ['exports', 'ember-babel', 'node-module'], function (exports, _em
       // something went wrong
     });
     ```
-  
+
     @method then
     @param {Function} onFulfillment
     @param {Function} onRejection
@@ -60480,87 +60480,87 @@ enifed('rsvp', ['exports', 'ember-babel', 'node-module'], function (exports, _em
     will return an `RSVP.Promise`. You can use `denodeify` in Node.js or the
     browser when you'd prefer to use promises over using callbacks. For example,
     `denodeify` transforms the following:
-  
+
     ```javascript
     let fs = require('fs');
-  
+
     fs.readFile('myfile.txt', function(err, data){
       if (err) return handleError(err);
       handleData(data);
     });
     ```
-  
+
     into:
-  
+
     ```javascript
     let fs = require('fs');
     let readFile = RSVP.denodeify(fs.readFile);
-  
+
     readFile('myfile.txt').then(handleData, handleError);
     ```
-  
+
     If the node function has multiple success parameters, then `denodeify`
     just returns the first one:
-  
+
     ```javascript
     let request = RSVP.denodeify(require('request'));
-  
+
     request('http://example.com').then(function(res) {
       // ...
     });
     ```
-  
+
     However, if you need all success parameters, setting `denodeify`'s
     second parameter to `true` causes it to return all success parameters
     as an array:
-  
+
     ```javascript
     let request = RSVP.denodeify(require('request'), true);
-  
+
     request('http://example.com').then(function(result) {
       // result[0] -> res
       // result[1] -> body
     });
     ```
-  
+
     Or if you pass it an array with names it returns the parameters as a hash:
-  
+
     ```javascript
     let request = RSVP.denodeify(require('request'), ['res', 'body']);
-  
+
     request('http://example.com').then(function(result) {
       // result.res
       // result.body
     });
     ```
-  
+
     Sometimes you need to retain the `this`:
-  
+
     ```javascript
     let app = require('express')();
     let render = RSVP.denodeify(app.render.bind(app));
     ```
-  
+
     The denodified function inherits from the original function. It works in all
     environments, except IE 10 and below. Consequently all properties of the original
     function are available to you. However, any properties you change on the
     denodeified function won't be changed on the original function. Example:
-  
+
     ```javascript
     let request = RSVP.denodeify(require('request')),
         cookieJar = request.jar(); // <- Inheritance is used here
-  
+
     request('http://example.com', {jar: cookieJar}).then(function(res) {
       // cookieJar.cookies holds now the cookies returned by example.com
     });
     ```
-  
+
     Using `denodeify` makes it easier to compose asynchronous operations instead
     of using callbacks. For example, instead of:
-  
+
     ```javascript
     let fs = require('fs');
-  
+
     fs.readFile('myfile.txt', function(err, data){
       if (err) { ... } // Handle error
       fs.writeFile('myfile2.txt', data, function(err){
@@ -60569,14 +60569,14 @@ enifed('rsvp', ['exports', 'ember-babel', 'node-module'], function (exports, _em
       });
     });
     ```
-  
+
     you can chain the operations together using `then` from the returned promise:
-  
+
     ```javascript
     let fs = require('fs');
     let readFile = RSVP.denodeify(fs.readFile);
     let writeFile = RSVP.denodeify(fs.writeFile);
-  
+
     readFile('myfile.txt').then(function(data){
       return writeFile('myfile2.txt', data);
     }).then(function(){
@@ -60585,7 +60585,7 @@ enifed('rsvp', ['exports', 'ember-babel', 'node-module'], function (exports, _em
       // Handle error
     });
     ```
-  
+
     @method denodeify
     @static
     @for RSVP
@@ -60686,7 +60686,7 @@ enifed('rsvp', ['exports', 'ember-babel', 'node-module'], function (exports, _em
 
   /**
     This is a convenient alias for `RSVP.Promise.all`.
-  
+
     @method all
     @static
     @for RSVP
@@ -60766,7 +60766,7 @@ enifed('rsvp', ['exports', 'ember-babel', 'node-module'], function (exports, _em
 
   /**
     This is a convenient alias for `RSVP.Promise.race`.
-  
+
     @method race
     @static
     @for RSVP
@@ -60817,15 +60817,15 @@ enifed('rsvp', ['exports', 'ember-babel', 'node-module'], function (exports, _em
   /**
     `RSVP.hash` is similar to `RSVP.all`, but takes an object instead of an array
     for its `promises` argument.
-  
+
     Returns a promise that is fulfilled when all the given promises have been
     fulfilled, or rejected if any of them become rejected. The returned promise
     is fulfilled with a hash that has the same key names as the `promises` object
     argument. If any of the values in the object are not promises, they will
     simply be copied over to the fulfilled object.
-  
+
     Example:
-  
+
     ```javascript
     let promises = {
       myPromise: RSVP.resolve(1),
@@ -60833,7 +60833,7 @@ enifed('rsvp', ['exports', 'ember-babel', 'node-module'], function (exports, _em
       theirPromise: RSVP.resolve(3),
       notAPromise: 4
     };
-  
+
     RSVP.hash(promises).then(function(hash){
       // hash here is an object that looks like:
       // {
@@ -60844,43 +60844,43 @@ enifed('rsvp', ['exports', 'ember-babel', 'node-module'], function (exports, _em
       // }
     });
     ````
-  
+
     If any of the `promises` given to `RSVP.hash` are rejected, the first promise
     that is rejected will be given as the reason to the rejection handler.
-  
+
     Example:
-  
+
     ```javascript
     let promises = {
       myPromise: RSVP.resolve(1),
       rejectedPromise: RSVP.reject(new Error('rejectedPromise')),
       anotherRejectedPromise: RSVP.reject(new Error('anotherRejectedPromise')),
     };
-  
+
     RSVP.hash(promises).then(function(hash){
       // Code here never runs because there are rejected promises!
     }, function(reason) {
       // reason.message === 'rejectedPromise'
     });
     ```
-  
+
     An important note: `RSVP.hash` is intended for plain JavaScript objects that
     are just a set of keys and values. `RSVP.hash` will NOT preserve prototype
     chains.
-  
+
     Example:
-  
+
     ```javascript
     function MyConstructor(){
       this.example = RSVP.resolve('Example');
     }
-  
+
     MyConstructor.prototype = {
       protoProperty: RSVP.resolve('Proto Property')
     };
-  
+
     let myObject = new MyConstructor();
-  
+
     RSVP.hash(myObject).then(function(hash){
       // protoProperty will not be present, instead you will just have an
       // object that looks like:
@@ -60892,7 +60892,7 @@ enifed('rsvp', ['exports', 'ember-babel', 'node-module'], function (exports, _em
       // 'undefined' === typeof hash.protoProperty
     });
     ```
-  
+
     @method hash
     @static
     @for RSVP
@@ -60926,23 +60926,23 @@ enifed('rsvp', ['exports', 'ember-babel', 'node-module'], function (exports, _em
   /**
     `RSVP.hashSettled` is similar to `RSVP.allSettled`, but takes an object
     instead of an array for its `promises` argument.
-  
+
     Unlike `RSVP.all` or `RSVP.hash`, which implement a fail-fast method,
     but like `RSVP.allSettled`, `hashSettled` waits until all the
     constituent promises have returned and then shows you all the results
     with their states and values/reasons. This is useful if you want to
     handle multiple promises' failure states together as a set.
-  
+
     Returns a promise that is fulfilled when all the given promises have been
     settled, or rejected if the passed parameters are invalid.
-  
+
     The returned promise is fulfilled with a hash that has the same key names as
     the `promises` object argument. If any of the values in the object are not
     promises, they will be copied over to the fulfilled object and marked with state
     'fulfilled'.
-  
+
     Example:
-  
+
     ```javascript
     let promises = {
       myPromise: RSVP.Promise.resolve(1),
@@ -60950,7 +60950,7 @@ enifed('rsvp', ['exports', 'ember-babel', 'node-module'], function (exports, _em
       theirPromise: RSVP.Promise.resolve(3),
       notAPromise: 4
     };
-  
+
     RSVP.hashSettled(promises).then(function(hash){
       // hash here is an object that looks like:
       // {
@@ -60961,19 +60961,19 @@ enifed('rsvp', ['exports', 'ember-babel', 'node-module'], function (exports, _em
       // }
     });
     ```
-  
+
     If any of the `promises` given to `RSVP.hash` are rejected, the state will
     be set to 'rejected' and the reason for rejection provided.
-  
+
     Example:
-  
+
     ```javascript
     let promises = {
       myPromise: RSVP.Promise.resolve(1),
       rejectedPromise: RSVP.Promise.reject(new Error('rejection')),
       anotherRejectedPromise: RSVP.Promise.reject(new Error('more rejection')),
     };
-  
+
     RSVP.hashSettled(promises).then(function(hash){
       // hash here is an object that looks like:
       // {
@@ -60985,24 +60985,24 @@ enifed('rsvp', ['exports', 'ember-babel', 'node-module'], function (exports, _em
       // and for anotherRejectedPromise, reason.message == 'more rejection'.
     });
     ```
-  
+
     An important note: `RSVP.hashSettled` is intended for plain JavaScript objects that
     are just a set of keys and values. `RSVP.hashSettled` will NOT preserve prototype
     chains.
-  
+
     Example:
-  
+
     ```javascript
     function MyConstructor(){
       this.example = RSVP.Promise.resolve('Example');
     }
-  
+
     MyConstructor.prototype = {
       protoProperty: RSVP.Promise.resolve('Proto Property')
     };
-  
+
     let myObject = new MyConstructor();
-  
+
     RSVP.hashSettled(myObject).then(function(hash){
       // protoProperty will not be present, instead you will just have an
       // object that looks like:
@@ -61014,7 +61014,7 @@ enifed('rsvp', ['exports', 'ember-babel', 'node-module'], function (exports, _em
       // 'undefined' === typeof hash.protoProperty
     });
     ```
-  
+
     @method hashSettled
     @for RSVP
     @param {Object} object
@@ -61036,7 +61036,7 @@ enifed('rsvp', ['exports', 'ember-babel', 'node-module'], function (exports, _em
   /**
     `RSVP.rethrow` will rethrow an error on the next turn of the JavaScript event
     loop in order to aid debugging.
-  
+
     Promises A+ specifies that any exceptions that occur with a promise must be
     caught by the promises implementation and bubbled to the last handler. For
     this reason, it is recommended that you always specify a second rejection
@@ -61044,16 +61044,16 @@ enifed('rsvp', ['exports', 'ember-babel', 'node-module'], function (exports, _em
     outside of the promise, so it bubbles up to your console if in the browser,
     or domain/cause uncaught exception in Node. `rethrow` will also throw the
     error again so the error can be handled by the promise per the spec.
-  
+
     ```javascript
     function throws(){
       throw new Error('Whoops!');
     }
-  
+
     let promise = new RSVP.Promise(function(resolve, reject){
       throws();
     });
-  
+
     promise.catch(RSVP.rethrow).then(function(){
       // Code here doesn't run because the promise became rejected due to an
       // error!
@@ -61061,11 +61061,11 @@ enifed('rsvp', ['exports', 'ember-babel', 'node-module'], function (exports, _em
       // handle the error here
     });
     ```
-  
+
     The 'Whoops' error will be thrown on the next turn of the event loop
     and you can watch for it in your console. You can also handle it using a
     rejection handler given to `.then` or `.catch` on the returned promise.
-  
+
     @method rethrow
     @static
     @for RSVP
@@ -61084,27 +61084,27 @@ enifed('rsvp', ['exports', 'ember-babel', 'node-module'], function (exports, _em
     `RSVP.defer` returns an object similar to jQuery's `$.Deferred`.
     `RSVP.defer` should be used when porting over code reliant on `$.Deferred`'s
     interface. New code should use the `RSVP.Promise` constructor instead.
-  
+
     The object returned from `RSVP.defer` is a plain object with three properties:
-  
+
     * promise - an `RSVP.Promise`.
     * reject - a function that causes the `promise` property on this object to
       become rejected
     * resolve - a function that causes the `promise` property on this object to
       become fulfilled.
-  
+
     Example:
-  
+
      ```javascript
      let deferred = RSVP.defer();
-  
+
      deferred.resolve("Success!");
-  
+
      deferred.promise.then(function(value){
        // value here is "Success!"
      });
      ```
-  
+
     @method defer
     @static
     @for RSVP
@@ -61164,58 +61164,58 @@ enifed('rsvp', ['exports', 'ember-babel', 'node-module'], function (exports, _em
     meaning that as soon as any promise resolves its value will be passed to `mapFn`.
     `RSVP.map` returns a promise that will become fulfilled with the result of running
     `mapFn` on the values the promises become fulfilled with.
-  
+
     For example:
-  
+
     ```javascript
-  
+
     let promise1 = RSVP.resolve(1);
     let promise2 = RSVP.resolve(2);
     let promise3 = RSVP.resolve(3);
     let promises = [ promise1, promise2, promise3 ];
-  
+
     let mapFn = function(item){
       return item + 1;
     };
-  
+
     RSVP.map(promises, mapFn).then(function(result){
       // result is [ 2, 3, 4 ]
     });
     ```
-  
+
     If any of the `promises` given to `RSVP.map` are rejected, the first promise
     that is rejected will be given as an argument to the returned promise's
     rejection handler. For example:
-  
+
     ```javascript
     let promise1 = RSVP.resolve(1);
     let promise2 = RSVP.reject(new Error('2'));
     let promise3 = RSVP.reject(new Error('3'));
     let promises = [ promise1, promise2, promise3 ];
-  
+
     let mapFn = function(item){
       return item + 1;
     };
-  
+
     RSVP.map(promises, mapFn).then(function(array){
       // Code here never runs because there are rejected promises!
     }, function(reason) {
       // reason.message === '2'
     });
     ```
-  
+
     `RSVP.map` will also wait if a promise is returned from `mapFn`. For example,
     say you want to get all comments from a set of blog posts, but you need
     the blog posts first because they contain a url to those comments.
-  
+
     ```javscript
-  
+
     let mapFn = function(blogPost){
       // getComments does some ajax and returns an RSVP.Promise that is fulfilled
       // with some comments data
       return getComments(blogPost.comments_url);
     };
-  
+
     // getBlogPosts does some ajax and returns an RSVP.Promise that is fulfilled
     // with some blog post data
     RSVP.map(getBlogPosts(), mapFn).then(function(comments){
@@ -61223,7 +61223,7 @@ enifed('rsvp', ['exports', 'ember-babel', 'node-module'], function (exports, _em
       // of all blog posts returned from getBlogPosts()
     });
     ```
-  
+
     @method map
     @static
     @for RSVP
@@ -61250,7 +61250,7 @@ enifed('rsvp', ['exports', 'ember-babel', 'node-module'], function (exports, _em
 
   /**
     This is a convenient alias for `RSVP.Promise.resolve`.
-  
+
     @method resolve
     @static
     @for RSVP
@@ -61266,7 +61266,7 @@ enifed('rsvp', ['exports', 'ember-babel', 'node-module'], function (exports, _em
 
   /**
     This is a convenient alias for `RSVP.Promise.reject`.
-  
+
     @method reject
     @static
     @for RSVP
@@ -61325,61 +61325,61 @@ enifed('rsvp', ['exports', 'ember-babel', 'node-module'], function (exports, _em
     resolves its value will be passed to `filterFn`. `RSVP.filter` returns
     a promise that will become fulfilled with the result of running
     `filterFn` on the values the promises become fulfilled with.
-  
+
     For example:
-  
+
     ```javascript
-  
+
     let promise1 = RSVP.resolve(1);
     let promise2 = RSVP.resolve(2);
     let promise3 = RSVP.resolve(3);
-  
+
     let promises = [promise1, promise2, promise3];
-  
+
     let filterFn = function(item){
       return item > 1;
     };
-  
+
     RSVP.filter(promises, filterFn).then(function(result){
       // result is [ 2, 3 ]
     });
     ```
-  
+
     If any of the `promises` given to `RSVP.filter` are rejected, the first promise
     that is rejected will be given as an argument to the returned promise's
     rejection handler. For example:
-  
+
     ```javascript
     let promise1 = RSVP.resolve(1);
     let promise2 = RSVP.reject(new Error('2'));
     let promise3 = RSVP.reject(new Error('3'));
     let promises = [ promise1, promise2, promise3 ];
-  
+
     let filterFn = function(item){
       return item > 1;
     };
-  
+
     RSVP.filter(promises, filterFn).then(function(array){
       // Code here never runs because there are rejected promises!
     }, function(reason) {
       // reason.message === '2'
     });
     ```
-  
+
     `RSVP.filter` will also wait for any promises returned from `filterFn`.
     For instance, you may want to fetch a list of users then return a subset
     of those users based on some asynchronous operation:
-  
+
     ```javascript
-  
+
     let alice = { name: 'alice' };
     let bob   = { name: 'bob' };
     let users = [ alice, bob ];
-  
+
     let promises = users.map(function(user){
       return RSVP.resolve(user);
     });
-  
+
     let filterFn = function(user){
       // Here, Alice has permissions to create a blog post, but Bob does not.
       return getPrivilegesForUser(user).then(function(privs){
@@ -61393,7 +61393,7 @@ enifed('rsvp', ['exports', 'ember-babel', 'node-module'], function (exports, _em
       users[0] === bob;
     });
     ```
-  
+
     @method filter
     @static
     @for RSVP
@@ -63598,15 +63598,15 @@ createDeprecatedModule('resolver');
   /*
     Assert that `addedRecord` has a valid type so it can be added to the
     relationship of the `record`.
-  
+
     The assert basically checks if the `addedRecord` can be added to the
     relationship (specified via `relationshipMeta`) of the `record`.
-  
+
     This utility should only be used internally, as both record parameters must
     be an InternalModel and the `relationshipMeta` needs to be the meta
     information about the relationship, retrieved via
     `record.relationshipFor(key)`.
-  
+
     @method assertPolymorphicType
     @param {InternalModel} internalModel
     @param {RelationshipMeta} relationshipMeta retrieved via
@@ -73501,7 +73501,7 @@ createDeprecatedModule('resolver');
       `_attributes` then the user has a local changed to the attribute
       that has not been synced with the server and the key is not
       included in the list of changed keys.
-    
+
       If the value, for a key differs from the value in what Ember Data
       believes to be the truth about the backend state (A merger of the
       `_data` and `_inFlightAttributes` objects where
@@ -78240,14 +78240,14 @@ createDeprecatedModule('resolver');
     is responsible for transforming the store's requests into HTTP
     requests that follow the [JSON API](http://jsonapi.org/format/)
     format.
-  
+
     ## JSON API Conventions
-  
+
     The JSONAPIAdapter uses JSON API conventions for building the URL
     for a record and selecting the HTTP verb to use with a request. The
     actions you can take on a record map onto the following URLs in the
     JSON API adapter:
-  
+
   <table>
     <tr>
       <th>
@@ -78316,55 +78316,55 @@ createDeprecatedModule('resolver');
       </td>
     </tr>
   </table>
-  
+
     ## Success and failure
-  
+
     The JSONAPIAdapter will consider a success any response with a
     status code of the 2xx family ("Success"), as well as 304 ("Not
     Modified"). Any other status code will be considered a failure.
-  
+
     On success, the request promise will be resolved with the full
     response payload.
-  
+
     Failed responses with status code 422 ("Unprocessable Entity") will
     be considered "invalid". The response will be discarded, except for
     the `errors` key. The request promise will be rejected with a
     `DS.InvalidError`. This error object will encapsulate the saved
     `errors` value.
-  
+
     Any other status codes will be treated as an adapter error. The
     request promise will be rejected, similarly to the invalid case,
     but with an instance of `DS.AdapterError` instead.
-  
+
     ### Endpoint path customization
-  
+
     Endpoint paths can be prefixed with a `namespace` by setting the
     namespace property on the adapter:
-  
+
     ```app/adapters/application.js
     import DS from 'ember-data';
-  
+
     export default DS.JSONAPIAdapter.extend({
       namespace: 'api/1'
     });
     ```
     Requests for the `person` model would now target `/api/1/people/1`.
-  
+
     ### Host customization
-  
+
     An adapter can target other hosts by setting the `host` property.
-  
+
     ```app/adapters/application.js
     import DS from 'ember-data';
-  
+
     export default DS.JSONAPIAdapter.extend({
       host: 'https://api.example.com'
     });
     ```
-  
+
     Requests for the `person` model would now target
     `https://api.example.com/people/1`.
-  
+
     @since 1.13.0
     @class JSONAPIAdapter
     @constructor
@@ -78487,39 +78487,39 @@ createDeprecatedModule('resolver');
     The REST adapter allows your store to communicate with an HTTP server by
     transmitting JSON via XHR. Most Ember.js apps that consume a JSON API
     should use the REST adapter.
-  
+
     This adapter is designed around the idea that the JSON exchanged with
     the server should be conventional.
-  
+
     ## Success and failure
-  
+
     The REST adapter will consider a success any response with a status code
     of the 2xx family ("Success"), as well as 304 ("Not Modified"). Any other
     status code will be considered a failure.
-  
+
     On success, the request promise will be resolved with the full response
     payload.
-  
+
     Failed responses with status code 422 ("Unprocessable Entity") will be
     considered "invalid". The response will be discarded, except for the
     `errors` key. The request promise will be rejected with a `DS.InvalidError`.
     This error object will encapsulate the saved `errors` value.
-  
+
     Any other status codes will be treated as an "adapter error". The request
     promise will be rejected, similarly to the "invalid" case, but with
     an instance of `DS.AdapterError` instead.
-  
+
     ## JSON Structure
-  
+
     The REST adapter expects the JSON returned from your server to follow
     these conventions.
-  
+
     ### Object Root
-  
+
     The JSON payload should be an object that contains the record inside a
     root property. For example, in response to a `GET` request for
     `/posts/1`, the JSON should look like this:
-  
+
     ```js
     {
       "posts": {
@@ -78529,10 +78529,10 @@ createDeprecatedModule('resolver');
       }
     }
     ```
-  
+
     Similarly, in response to a `GET` request for `/posts`, the JSON should
     look like this:
-  
+
     ```js
     {
       "posts": [
@@ -78549,32 +78549,32 @@ createDeprecatedModule('resolver');
       ]
     }
     ```
-  
+
     Note that the object root can be pluralized for both a single-object response
     and an array response: the REST adapter is not strict on this. Further, if the
     HTTP server responds to a `GET` request to `/posts/1` (e.g. the response to a
     `findRecord` query) with more than one object in the array, Ember Data will
     only display the object with the matching ID.
-  
+
     ### Conventional Names
-  
+
     Attribute names in your JSON payload should be the camelCased versions of
     the attributes in your Ember.js models.
-  
+
     For example, if you have a `Person` model:
-  
+
     ```app/models/person.js
     import DS from 'ember-data';
-  
+
     export default DS.Model.extend({
       firstName: DS.attr('string'),
       lastName: DS.attr('string'),
       occupation: DS.attr('string')
     });
     ```
-  
+
     The JSON returned should look like this:
-  
+
     ```js
     {
       "people": {
@@ -78585,13 +78585,13 @@ createDeprecatedModule('resolver');
       }
     }
     ```
-  
+
     #### Relationships
-  
+
     Relationships are usually represented by ids to the record in the
     relationship. The related records can then be sideloaded in the
     response under a key for the type.
-  
+
     ```js
     {
       "posts": {
@@ -78611,13 +78611,13 @@ createDeprecatedModule('resolver');
       }]
     }
     ```
-  
+
     If the records in the relationship are not known when the response
     is serialized it's also possible to represent the relationship as a
     URL using the `links` key in the response. Ember Data will fetch
     this URL to resolve the relationship when it is accessed for the
     first time.
-  
+
     ```js
     {
       "posts": {
@@ -78630,12 +78630,12 @@ createDeprecatedModule('resolver');
       }
     }
     ```
-  
+
     ### Errors
-  
+
     If a response is considered a failure, the JSON payload is expected to include
     a top-level key `errors`, detailing any specific issues. For example:
-  
+
     ```js
     {
       "errors": {
@@ -78643,51 +78643,51 @@ createDeprecatedModule('resolver');
       }
     }
     ```
-  
+
     This adapter does not make any assumptions as to the format of the `errors`
     object. It will simply be passed along as is, wrapped in an instance
     of `DS.InvalidError` or `DS.AdapterError`. The serializer can interpret it
     afterwards.
-  
+
     ## Customization
-  
+
     ### Endpoint path customization
-  
+
     Endpoint paths can be prefixed with a `namespace` by setting the namespace
     property on the adapter:
-  
+
     ```app/adapters/application.js
     import DS from 'ember-data';
-  
+
     export default DS.RESTAdapter.extend({
       namespace: 'api/1'
     });
     ```
     Requests for the `Person` model would now target `/api/1/people/1`.
-  
+
     ### Host customization
-  
+
     An adapter can target other hosts by setting the `host` property.
-  
+
     ```app/adapters/application.js
     import DS from 'ember-data';
-  
+
     export default DS.RESTAdapter.extend({
       host: 'https://api.example.com'
     });
     ```
-  
+
     ### Headers customization
-  
+
     Some APIs require HTTP headers, e.g. to provide an API key. Arbitrary
     headers can be set as key/value pairs on the `RESTAdapter`'s `headers`
     object and Ember Data will send them along with each ajax request.
-  
-  
+
+
     ```app/adapters/application.js
     import DS from 'ember-data';
     import { computed } from '@ember/object';
-  
+
     export default DS.RESTAdapter.extend({
       headers: computed(function() {
         return {
@@ -78697,15 +78697,15 @@ createDeprecatedModule('resolver');
       }
     });
     ```
-  
+
     `headers` can also be used as a computed property to support dynamic
     headers. In the example below, the `session` object has been
     injected into an adapter by Ember's container.
-  
+
     ```app/adapters/application.js
     import DS from 'ember-data';
     import { computed } from '@ember/object';
-  
+
     export default DS.RESTAdapter.extend({
       headers: computed('session.authToken', function() {
         return {
@@ -78715,19 +78715,19 @@ createDeprecatedModule('resolver');
       })
     });
     ```
-  
+
     In some cases, your dynamic headers may require data from some
     object outside of Ember's observer system (for example
     `document.cookie`). You can use the
     [volatile](/api/classes/Ember.ComputedProperty.html#method_volatile)
     function to set the property into a non-cached mode causing the headers to
     be recomputed with every request.
-  
+
     ```app/adapters/application.js
     import DS from 'ember-data';
     import { get } from '@ember/object';
     import { computed } from '@ember/object';
-  
+
     export default DS.RESTAdapter.extend({
       headers: computed(function() {
         return {
@@ -78737,7 +78737,7 @@ createDeprecatedModule('resolver');
       }).volatile()
     });
     ```
-  
+
     @class RESTAdapter
     @constructor
     @namespace DS
@@ -79433,7 +79433,7 @@ createDeprecatedModule('resolver');
           try {
             return `${protocol}//${host}${url}`;
           } catch (fbError) {
-            throw new Error('You are using Ember Data with no host defined in your adapter. This will attempt to use the host of the FastBoot request, which is not configured for the current host of this request. Please set the hostWhitelist property for in your environment.js. FastBoot Error: ' + fbError.message);
+            throw new Error('You are using Ember Data with no host defined in your adapter. This will attempt to use the host of the FastBoot request, which is not configured for the current host of this request. Please set the hostAllowList property for in your environment.js. FastBoot Error: ' + fbError.message);
           }
         }
       }
@@ -79720,7 +79720,7 @@ createDeprecatedModule('resolver');
   /*
     Configures a registry for use with an Ember-Data
     store.
-  
+
     @method initializeStoreService
     @param {Ember.ApplicationInstance | Ember.EngineInstance} instance
   */
@@ -80374,20 +80374,20 @@ createDeprecatedModule('resolver');
 
   /**
     Ember Data 2.0 Serializer:
-  
+
     In Ember Data a Serializer is used to serialize and deserialize
     records when they are transferred in and out of an external source.
     This process involves normalizing property names, transforming
     attribute values and serializing relationships.
-  
+
     `JSONAPISerializer` supports the http://jsonapi.org/ spec and is the
     serializer recommended by Ember Data.
-  
+
     This serializer normalizes a JSON API payload that looks like:
-  
+
     ```app/models/player.js
     import DS from 'ember-data';
-  
+
     export default DS.Model.extend({
       name: DS.attr('string'),
       skill: DS.attr('string'),
@@ -80395,17 +80395,17 @@ createDeprecatedModule('resolver');
       club: DS.belongsTo('club')
     });
     ```
-  
+
     ```app/models/club.js
     import DS from 'ember-data';
-  
+
     export default DS.Model.extend({
       name: DS.attr('string'),
       location: DS.attr('string'),
       players: DS.hasMany('player')
     });
     ```
-  
+
     ```js
       {
         "data": [
@@ -80449,40 +80449,40 @@ createDeprecatedModule('resolver');
         ]
       }
     ```
-  
+
     to the format that the Ember Data store expects.
-  
+
     ### Customizing meta
-  
+
     Since a JSON API Document can have meta defined in multiple locations you can
     use the specific serializer hooks if you need to customize the meta.
-  
+
     One scenario would be to camelCase the meta keys of your payload. The example
     below shows how this could be done using `normalizeArrayResponse` and
     `extractRelationship`.
-  
+
     ```app/serializers/application.js
     export default JSONAPISerializer.extend({
       normalizeArrayResponse(store, primaryModelClass, payload, id, requestType) {
         let normalizedDocument = this._super(...arguments);
-  
+
         // Customize document meta
         normalizedDocument.meta = camelCaseKeys(normalizedDocument.meta);
-  
+
         return normalizedDocument;
       },
-  
+
       extractRelationship(relationshipHash) {
         let normalizedRelationship = this._super(...arguments);
-  
+
         // Customize relationship meta
         normalizedRelationship.meta = camelCaseKeys(normalizedRelationship.meta);
-  
+
         return normalizedRelationship;
       }
     });
     ```
-  
+
     @since 1.13.0
     @class JSONAPISerializer
     @namespace DS
@@ -80922,30 +80922,30 @@ createDeprecatedModule('resolver');
 
   /**
     Ember Data 2.0 Serializer:
-  
+
     In Ember Data a Serializer is used to serialize and deserialize
     records when they are transferred in and out of an external source.
     This process involves normalizing property names, transforming
     attribute values and serializing relationships.
-  
+
     By default, Ember Data uses and recommends the `JSONAPISerializer`.
-  
+
     `JSONSerializer` is useful for simpler or legacy backends that may
     not support the http://jsonapi.org/ spec.
-  
+
     For example, given the following `User` model and JSON payload:
-  
+
     ```app/models/user.js
     import DS from 'ember-data';
-  
+
     export default DS.Model.extend({
       friends: DS.hasMany('user'),
       house: DS.belongsTo('location'),
-  
+
       name: DS.attr('string')
     });
     ```
-  
+
     ```js
     {
       id: 1,
@@ -80956,13 +80956,13 @@ createDeprecatedModule('resolver');
       }
     }
     ```
-  
+
     `JSONSerializer` will normalize the JSON payload to the JSON API format that the
     Ember Data store expects.
-  
+
     You can customize how JSONSerializer processes its payload by passing options in
     the `attrs` hash or by subclassing the `JSONSerializer` and overriding hooks:
-  
+
       - To customize how a single record is normalized, use the `normalize` hook.
       - To customize how `JSONSerializer` normalizes the whole server response, use the
         `normalizeResponse` hook.
@@ -80970,9 +80970,9 @@ createDeprecatedModule('resolver');
         use one of the many specific `normalizeResponse` hooks.
       - To customize how `JSONSerializer` normalizes your id, attributes or relationships,
         use the `extractId`, `extractAttributes` and `extractRelationships` hooks.
-  
+
     The `JSONSerializer` normalization process follows these steps:
-  
+
       - `normalizeResponse` - entry method to the serializer.
       - `normalizeCreateRecordResponse` - a `normalizeResponse` for a specific operation is called.
       - `normalizeSingleResponse`|`normalizeArrayResponse` - for methods like `createRecord` we expect
@@ -80981,7 +80981,7 @@ createDeprecatedModule('resolver');
         calls it once. This is the method you most likely want to subclass.
       - `extractId` | `extractAttributes` | `extractRelationships` - `normalize` delegates to these methods to
         turn the record payload into the JSON API format.
-  
+
     @class JSONSerializer
     @namespace DS
     @extends DS.Serializer
@@ -82271,42 +82271,42 @@ createDeprecatedModule('resolver');
   /**
     Normally, applications will use the `RESTSerializer` by implementing
     the `normalize` method.
-  
+
     This allows you to do whatever kind of munging you need and is
     especially useful if your server is inconsistent and you need to
     do munging differently for many different kinds of responses.
-  
+
     See the `normalize` documentation for more information.
-  
+
     ## Across the Board Normalization
-  
+
     There are also a number of hooks that you might find useful to define
     across-the-board rules for your payload. These rules will be useful
     if your server is consistent, or if you're building an adapter for
     an infrastructure service, like Firebase, and want to encode service
     conventions.
-  
+
     For example, if all of your keys are underscored and all-caps, but
     otherwise consistent with the names you use in your models, you
     can implement across-the-board rules for how to convert an attribute
     name in your model to a key in your JSON.
-  
+
     ```app/serializers/application.js
     import DS from 'ember-data';
     import { underscore } from '@ember/string';
-  
+
     export default DS.RESTSerializer.extend({
       keyForAttribute(attr, method) {
         return underscore(attr).toUpperCase();
       }
     });
     ```
-  
+
     You can also implement `keyForRelationship`, which takes the name
     of the relationship as the first parameter, the kind of
     relationship (`hasMany` or `belongsTo`) as the second parameter, and
     the method (`serialize` or `deserialize`) as the third parameter.
-  
+
     @class RESTSerializer
     @namespace DS
     @extends DS.JSONSerializer
@@ -82981,7 +82981,7 @@ createDeprecatedModule('resolver');
   /*
    Configures a registry for use with an Ember-Data
    store. Accepts an optional namespace argument.
-  
+
    @method initializeStore
    @param {Ember.Registry} registry
    */
@@ -83004,7 +83004,7 @@ createDeprecatedModule('resolver');
   /*
    Configures a registry with injections on Ember applications
    for the Ember-Data store. Accepts an optional namespace argument.
-  
+
    @method initializeDebugAdapter
    @param {Ember.Registry} registry
    */
@@ -83015,7 +83015,7 @@ createDeprecatedModule('resolver');
   /*
    Configures a registry with injections on Ember applications
    for the Ember-Data store. Accepts an optional namespace argument.
-  
+
    @method initializeStoreInjections
    @param {Ember.Registry} registry
    */
@@ -83031,7 +83031,7 @@ createDeprecatedModule('resolver');
   /*
    Configures a registry for use with Ember-Data
    transforms.
-  
+
    @method initializeTransforms
    @param {Ember.Registry} registry
    */
@@ -83164,19 +83164,19 @@ createDeprecatedModule('resolver');
     numeric attributes on Ember Data record objects. This transform is
     used when `number` is passed as the type parameter to the
     [DS.attr](../../data#method_attr) function.
-  
+
     Usage
-  
+
     ```app/models/score.js
     import DS from 'ember-data';
-  
+
     export default DS.Model.extend({
       value: DS.attr('number'),
       player: DS.belongsTo('player'),
       date: DS.attr('date')
     });
     ```
-  
+
     @class NumberTransform
     @extends DS.Transform
     @namespace DS
@@ -83458,44 +83458,44 @@ createDeprecatedModule('resolver');
     Inflector.Ember provides a mechanism for supplying inflection rules for your
     application. Ember includes a default set of inflection rules, and provides an
     API for providing additional rules.
-  
+
     Examples:
-  
+
     Creating an inflector with no rules.
-  
+
     ```js
     var inflector = new Ember.Inflector();
     ```
-  
+
     Creating an inflector with the default ember ruleset.
-  
+
     ```js
     var inflector = new Ember.Inflector(Ember.Inflector.defaultRules);
-  
+
     inflector.pluralize('cow'); //=> 'kine'
     inflector.singularize('kine'); //=> 'cow'
     ```
-  
+
     Creating an inflector and adding rules later.
-  
+
     ```javascript
     var inflector = Ember.Inflector.inflector;
-  
+
     inflector.pluralize('advice'); // => 'advices'
     inflector.uncountable('advice');
     inflector.pluralize('advice'); // => 'advice'
-  
+
     inflector.pluralize('formula'); // => 'formulas'
     inflector.irregular('formula', 'formulae');
     inflector.pluralize('formula'); // => 'formulae'
-  
+
     // you would not need to add these as they are the default rules
     inflector.plural(/$/, 's');
     inflector.singular(/s$/i, '');
     ```
-  
+
     Creating an inflector with a nondefault ruleset.
-  
+
     ```javascript
     var rules = {
       plurals:  [
@@ -83509,10 +83509,10 @@ createDeprecatedModule('resolver');
       ],
       uncountable: [ 'fish' ]
     };
-  
+
     var inflector = new Ember.Inflector(rules);
     ```
-  
+
     @class Inflector
     @namespace Ember
   */
diff --git a/packages/fastboot/test/fixtures/app-with-dependencies/package.json b/packages/fastboot/test/fixtures/app-with-dependencies/package.json
index 26f91e450..f5980bd59 100644
--- a/packages/fastboot/test/fixtures/app-with-dependencies/package.json
+++ b/packages/fastboot/test/fixtures/app-with-dependencies/package.json
@@ -29,7 +29,7 @@
       "htmlFile": "index.html",
       "vendorFiles": ["assets/vendor.js"]
     },
-    "moduleWhitelist": ["url", "foo"],
+    "moduleAllowlist": ["url", "foo"],
     "schemaVersion": 4
   }
-}
\ No newline at end of file
+}
diff --git a/packages/fastboot/test/fixtures/app-with-multiple-config/assets/app-with-multiple-configs-fastboot.js b/packages/fastboot/test/fixtures/app-with-multiple-config/assets/app-with-multiple-configs-fastboot.js
index e1af1ebca..fac809bce 100644
--- a/packages/fastboot/test/fixtures/app-with-multiple-config/assets/app-with-multiple-configs-fastboot.js
+++ b/packages/fastboot/test/fixtures/app-with-multiple-config/assets/app-with-multiple-configs-fastboot.js
@@ -18,7 +18,7 @@ define('app-with-multiple-configs/initializers/ajax', ['exports'], function (exp
       try {
         options.url = protocol + '//' + get(this, 'fastboot.request.host') + options.url;
       } catch (fbError) {
-        throw new Error('You are using Ember Data with no host defined in your adapter. This will attempt to use the host of the FastBoot request, which is not configured for the current host of this request. Please set the hostWhitelist property for in your environment.js. FastBoot Error: ' + fbError.message);
+        throw new Error('You are using Ember Data with no host defined in your adapter. This will attempt to use the host of the FastBoot request, which is not configured for the current host of this request. Please set the hostAllowList property for in your environment.js. FastBoot Error: ' + fbError.message);
       }
     }
 
diff --git a/packages/fastboot/test/fixtures/app-with-multiple-config/package.json b/packages/fastboot/test/fixtures/app-with-multiple-config/package.json
index d6a2327c3..e34c0d685 100644
--- a/packages/fastboot/test/fixtures/app-with-multiple-config/package.json
+++ b/packages/fastboot/test/fixtures/app-with-multiple-config/package.json
@@ -1 +1 @@
-{"dependencies":{},"fastboot":{"appName":"app-with-multiple-configs","config":{"app-with-multiple-configs":{"APP":{"autoboot":false,"name":"app-with-multiple-configs","version":"0.0.0+b0fbd701"},"EmberENV":{"EXTEND_PROTOTYPES":{"Date":false},"FEATURES":{}},"environment":"development","exportApplicationGlobal":true,"locationType":"auto","modulePrefix":"app-with-multiple-configs","rootURL":"/"},"foo":"bar"},"manifest":{"appFiles":["assets/app-with-multiple-configs.js","assets/app-with-multiple-configs-fastboot.js","ember-fastboot-build-example/bar.js"],"htmlFile":"index.html","vendorFiles":["ember-fastboot-build-example/foo.js","assets/vendor.js"]},"moduleWhitelist":[],"schemaVersion":3}}
\ No newline at end of file
+{"dependencies":{},"fastboot":{"appName":"app-with-multiple-configs","config":{"app-with-multiple-configs":{"APP":{"autoboot":false,"name":"app-with-multiple-configs","version":"0.0.0+b0fbd701"},"EmberENV":{"EXTEND_PROTOTYPES":{"Date":false},"FEATURES":{}},"environment":"development","exportApplicationGlobal":true,"locationType":"auto","modulePrefix":"app-with-multiple-configs","rootURL":"/"},"foo":"bar"},"manifest":{"appFiles":["assets/app-with-multiple-configs.js","assets/app-with-multiple-configs-fastboot.js","ember-fastboot-build-example/bar.js"],"htmlFile":"index.html","vendorFiles":["ember-fastboot-build-example/foo.js","assets/vendor.js"]},"moduleAllowlist":[],"schemaVersion":3}}
diff --git a/packages/fastboot/test/fixtures/app-with-prototype-mutations/assets/app-with-mutable-prototype-fastboot.js b/packages/fastboot/test/fixtures/app-with-prototype-mutations/assets/app-with-mutable-prototype-fastboot.js
index e5772af5a..ad6736e6f 100644
--- a/packages/fastboot/test/fixtures/app-with-prototype-mutations/assets/app-with-mutable-prototype-fastboot.js
+++ b/packages/fastboot/test/fixtures/app-with-prototype-mutations/assets/app-with-mutable-prototype-fastboot.js
@@ -31,7 +31,7 @@ define("app-with-mutable-prototype/initializers/ajax", ["exports"], function (_e
       try {
         options.url = protocol + '//' + get(this, 'fastboot.request.host') + options.url;
       } catch (fbError) {
-        throw new Error('You are using Ember Data with no host defined in your adapter. This will attempt to use the host of the FastBoot request, which is not configured for the current host of this request. Please set the hostWhitelist property for in your environment.js. FastBoot Error: ' + fbError.message);
+        throw new Error('You are using Ember Data with no host defined in your adapter. This will attempt to use the host of the FastBoot request, which is not configured for the current host of this request. Please set the hostAllowList property for in your environment.js. FastBoot Error: ' + fbError.message);
       }
     }
 
diff --git a/packages/fastboot/test/fixtures/app-with-prototype-mutations/assets/app-with-mutable-prototype-fastboot.map b/packages/fastboot/test/fixtures/app-with-prototype-mutations/assets/app-with-mutable-prototype-fastboot.map
index 2f5ccc5fe..1fb46179a 100644
--- a/packages/fastboot/test/fixtures/app-with-prototype-mutations/assets/app-with-mutable-prototype-fastboot.map
+++ b/packages/fastboot/test/fixtures/app-with-prototype-mutations/assets/app-with-mutable-prototype-fastboot.map
@@ -1 +1 @@
-{"version":3,"sources":["app-factory.js","app-with-mutable-prototype/initializers/ajax.js","app-with-mutable-prototype/initializers/error-handler.js"],"sourcesContent":["define('~fastboot/app-factory', ['app-with-mutable-prototype/app', 'app-with-mutable-prototype/config/environment'], function(App, config) {\n  App = App['default'];\n  config = config['default'];\n\n  return {\n    'default': function() {\n      return App.create(config.APP);\n    }\n  };\n});\n","define(\"app-with-mutable-prototype/initializers/ajax\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n  const {\n    get\n  } = Ember;\n\n  var nodeAjax = function (options) {\n    let httpRegex = /^https?:\\/\\//;\n    let protocolRelativeRegex = /^\\/\\//;\n    let protocol = get(this, 'fastboot.request.protocol');\n\n    if (protocolRelativeRegex.test(options.url)) {\n      options.url = protocol + options.url;\n    } else if (!httpRegex.test(options.url)) {\n      try {\n        options.url = protocol + '//' + get(this, 'fastboot.request.host') + options.url;\n      } catch (fbError) {\n        throw new Error('You are using Ember Data with no host defined in your adapter. This will attempt to use the host of the FastBoot request, which is not configured for the current host of this request. Please set the hostWhitelist property for in your environment.js. FastBoot Error: ' + fbError.message);\n      }\n    }\n\n    if (najax) {\n      najax(options);\n    } else {\n      throw new Error('najax does not seem to be defined in your app. Did you override it via `addOrOverrideSandboxGlobals` in the fastboot server?');\n    }\n  };\n\n  var _default = {\n    name: 'ajax-service',\n    initialize: function (application) {\n      application.register('ajax:node', nodeAjax, {\n        instantiate: false\n      });\n      application.inject('adapter', '_ajaxRequest', 'ajax:node');\n      application.inject('adapter', 'fastboot', 'service:fastboot');\n    }\n  };\n  _exports.default = _default;\n});","define(\"app-with-mutable-prototype/initializers/error-handler\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n   * Initializer to attach an `onError` hook to your app running in fastboot. It catches any run loop\n   * exceptions and other errors and prevents the node process from crashing.\n   *\n   */\n  var _default = {\n    name: 'error-handler',\n    initialize: function () {\n      if (!Ember.onerror) {\n        // if no onerror handler is defined, define one for fastboot environments\n        Ember.onerror = function (err) {\n          const errorMessage = \"There was an error running your app in fastboot. More info about the error: \\n \".concat(err.stack || err);\n          console.error(errorMessage);\n        };\n      }\n    }\n  };\n  _exports.default = _default;\n});"],"names":[],"mappings":"AAAA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;ACTA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AC3CA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;","file":"app-with-mutable-prototype-fastboot.js"}
\ No newline at end of file
+{"version":3,"sources":["app-factory.js","app-with-mutable-prototype/initializers/ajax.js","app-with-mutable-prototype/initializers/error-handler.js"],"sourcesContent":["define('~fastboot/app-factory', ['app-with-mutable-prototype/app', 'app-with-mutable-prototype/config/environment'], function(App, config) {\n  App = App['default'];\n  config = config['default'];\n\n  return {\n    'default': function() {\n      return App.create(config.APP);\n    }\n  };\n});\n","define(\"app-with-mutable-prototype/initializers/ajax\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n  const {\n    get\n  } = Ember;\n\n  var nodeAjax = function (options) {\n    let httpRegex = /^https?:\\/\\//;\n    let protocolRelativeRegex = /^\\/\\//;\n    let protocol = get(this, 'fastboot.request.protocol');\n\n    if (protocolRelativeRegex.test(options.url)) {\n      options.url = protocol + options.url;\n    } else if (!httpRegex.test(options.url)) {\n      try {\n        options.url = protocol + '//' + get(this, 'fastboot.request.host') + options.url;\n      } catch (fbError) {\n        throw new Error('You are using Ember Data with no host defined in your adapter. This will attempt to use the host of the FastBoot request, which is not configured for the current host of this request. Please set the hostAllowList property for in your environment.js. FastBoot Error: ' + fbError.message);\n      }\n    }\n\n    if (najax) {\n      najax(options);\n    } else {\n      throw new Error('najax does not seem to be defined in your app. Did you override it via `addOrOverrideSandboxGlobals` in the fastboot server?');\n    }\n  };\n\n  var _default = {\n    name: 'ajax-service',\n    initialize: function (application) {\n      application.register('ajax:node', nodeAjax, {\n        instantiate: false\n      });\n      application.inject('adapter', '_ajaxRequest', 'ajax:node');\n      application.inject('adapter', 'fastboot', 'service:fastboot');\n    }\n  };\n  _exports.default = _default;\n});","define(\"app-with-mutable-prototype/initializers/error-handler\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n   * Initializer to attach an `onError` hook to your app running in fastboot. It catches any run loop\n   * exceptions and other errors and prevents the node process from crashing.\n   *\n   */\n  var _default = {\n    name: 'error-handler',\n    initialize: function () {\n      if (!Ember.onerror) {\n        // if no onerror handler is defined, define one for fastboot environments\n        Ember.onerror = function (err) {\n          const errorMessage = \"There was an error running your app in fastboot. More info about the error: \\n \".concat(err.stack || err);\n          console.error(errorMessage);\n        };\n      }\n    }\n  };\n  _exports.default = _default;\n});"],"names":[],"mappings":"AAAA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;ACTA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AC3CA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;","file":"app-with-mutable-prototype-fastboot.js"}
diff --git a/packages/fastboot/test/fixtures/app-with-prototype-mutations/package.json b/packages/fastboot/test/fixtures/app-with-prototype-mutations/package.json
index cee30837e..d4312b40d 100644
--- a/packages/fastboot/test/fixtures/app-with-prototype-mutations/package.json
+++ b/packages/fastboot/test/fixtures/app-with-prototype-mutations/package.json
@@ -1 +1 @@
-{"dependencies":{},"fastboot":{"appName":"app-with-mutable-prototype","config":{"app-with-mutable-prototype":{"APP":{"autoboot":false},"EmberENV":{"EXTEND_PROTOTYPES":{"Date":false},"FEATURES":{},"_APPLICATION_TEMPLATE_WRAPPER":false,"_DEFAULT_ASYNC_OBSERVERS":true,"_JQUERY_INTEGRATION":false,"_TEMPLATE_ONLY_GLIMMER_COMPONENTS":true},"environment":"development","locationType":"auto","modulePrefix":"app-with-mutable-prototype","rootURL":"/"}},"manifest":{"appFiles":["assets/app-with-mutable-prototype.js","assets/app-with-mutable-prototype-fastboot.js"],"htmlFile":"index.html","vendorFiles":["assets/vendor.js"]},"moduleWhitelist":[],"schemaVersion":3}}
\ No newline at end of file
+{"dependencies":{},"fastboot":{"appName":"app-with-mutable-prototype","config":{"app-with-mutable-prototype":{"APP":{"autoboot":false},"EmberENV":{"EXTEND_PROTOTYPES":{"Date":false},"FEATURES":{},"_APPLICATION_TEMPLATE_WRAPPER":false,"_DEFAULT_ASYNC_OBSERVERS":true,"_JQUERY_INTEGRATION":false,"_TEMPLATE_ONLY_GLIMMER_COMPONENTS":true},"environment":"development","locationType":"auto","modulePrefix":"app-with-mutable-prototype","rootURL":"/"}},"manifest":{"appFiles":["assets/app-with-mutable-prototype.js","assets/app-with-mutable-prototype-fastboot.js"],"htmlFile":"index.html","vendorFiles":["assets/vendor.js"]},"moduleAllowlist":[],"schemaVersion":3}}
diff --git a/packages/fastboot/test/fixtures/basic-app/package.json b/packages/fastboot/test/fixtures/basic-app/package.json
index cced53b2d..a342f3915 100644
--- a/packages/fastboot/test/fixtures/basic-app/package.json
+++ b/packages/fastboot/test/fixtures/basic-app/package.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {},
   "fastboot": {
-    "moduleWhitelist": [],
+    "moduleAllowlist": [],
     "schemaVersion": 1,
     "manifest": {
       "appFile": "assets/fastboot-test.js",
diff --git a/packages/fastboot/test/fixtures/boot-time-failing-app/package.json b/packages/fastboot/test/fixtures/boot-time-failing-app/package.json
index cced53b2d..a342f3915 100644
--- a/packages/fastboot/test/fixtures/boot-time-failing-app/package.json
+++ b/packages/fastboot/test/fixtures/boot-time-failing-app/package.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {},
   "fastboot": {
-    "moduleWhitelist": [],
+    "moduleAllowlist": [],
     "schemaVersion": 1,
     "manifest": {
       "appFile": "assets/fastboot-test.js",
diff --git a/packages/fastboot/test/fixtures/config-app/package.json b/packages/fastboot/test/fixtures/config-app/package.json
index c1d10f7c6..c224c7bc4 100644
--- a/packages/fastboot/test/fixtures/config-app/package.json
+++ b/packages/fastboot/test/fixtures/config-app/package.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {},
   "fastboot": {
-    "moduleWhitelist": [],
+    "moduleAllowlist": [],
     "schemaVersion": 1,
     "manifest": {
       "appFile": "assets/fastboot-test.js",
diff --git a/packages/fastboot/test/fixtures/config-not-in-meta-app/package.json b/packages/fastboot/test/fixtures/config-not-in-meta-app/package.json
index 3dd327aa8..2e79c4ef4 100644
--- a/packages/fastboot/test/fixtures/config-not-in-meta-app/package.json
+++ b/packages/fastboot/test/fixtures/config-not-in-meta-app/package.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {},
   "fastboot": {
-    "moduleWhitelist": [],
+    "moduleAllowlist": [],
     "schemaVersion": 1,
     "manifest": {
       "appFile": "assets/fastboot-test.js",
diff --git a/packages/fastboot/test/fixtures/config-swap-app/package-1.json b/packages/fastboot/test/fixtures/config-swap-app/package-1.json
index c1d10f7c6..c224c7bc4 100644
--- a/packages/fastboot/test/fixtures/config-swap-app/package-1.json
+++ b/packages/fastboot/test/fixtures/config-swap-app/package-1.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {},
   "fastboot": {
-    "moduleWhitelist": [],
+    "moduleAllowlist": [],
     "schemaVersion": 1,
     "manifest": {
       "appFile": "assets/fastboot-test.js",
diff --git a/packages/fastboot/test/fixtures/config-swap-app/package-2.json b/packages/fastboot/test/fixtures/config-swap-app/package-2.json
index 47c27074a..c6a8b28de 100644
--- a/packages/fastboot/test/fixtures/config-swap-app/package-2.json
+++ b/packages/fastboot/test/fixtures/config-swap-app/package-2.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {},
   "fastboot": {
-    "moduleWhitelist": [],
+    "moduleAllowlist": [],
     "schemaVersion": 1,
     "manifest": {
       "appFile": "assets/fastboot-test.js",
diff --git a/packages/fastboot/test/fixtures/custom-body-attrs-with-no-default-classes/package.json b/packages/fastboot/test/fixtures/custom-body-attrs-with-no-default-classes/package.json
index cced53b2d..a342f3915 100644
--- a/packages/fastboot/test/fixtures/custom-body-attrs-with-no-default-classes/package.json
+++ b/packages/fastboot/test/fixtures/custom-body-attrs-with-no-default-classes/package.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {},
   "fastboot": {
-    "moduleWhitelist": [],
+    "moduleAllowlist": [],
     "schemaVersion": 1,
     "manifest": {
       "appFile": "assets/fastboot-test.js",
diff --git a/packages/fastboot/test/fixtures/custom-body-attrs/package.json b/packages/fastboot/test/fixtures/custom-body-attrs/package.json
index cced53b2d..a342f3915 100644
--- a/packages/fastboot/test/fixtures/custom-body-attrs/package.json
+++ b/packages/fastboot/test/fixtures/custom-body-attrs/package.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {},
   "fastboot": {
-    "moduleWhitelist": [],
+    "moduleAllowlist": [],
     "schemaVersion": 1,
     "manifest": {
       "appFile": "assets/fastboot-test.js",
diff --git a/packages/fastboot/test/fixtures/custom-html-attrs-with-no-default-classes/package.json b/packages/fastboot/test/fixtures/custom-html-attrs-with-no-default-classes/package.json
index cced53b2d..a342f3915 100644
--- a/packages/fastboot/test/fixtures/custom-html-attrs-with-no-default-classes/package.json
+++ b/packages/fastboot/test/fixtures/custom-html-attrs-with-no-default-classes/package.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {},
   "fastboot": {
-    "moduleWhitelist": [],
+    "moduleAllowlist": [],
     "schemaVersion": 1,
     "manifest": {
       "appFile": "assets/fastboot-test.js",
diff --git a/packages/fastboot/test/fixtures/custom-html-attrs/package.json b/packages/fastboot/test/fixtures/custom-html-attrs/package.json
index cced53b2d..a342f3915 100644
--- a/packages/fastboot/test/fixtures/custom-html-attrs/package.json
+++ b/packages/fastboot/test/fixtures/custom-html-attrs/package.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {},
   "fastboot": {
-    "moduleWhitelist": [],
+    "moduleAllowlist": [],
     "schemaVersion": 1,
     "manifest": {
       "appFile": "assets/fastboot-test.js",
diff --git a/packages/fastboot/test/fixtures/custom-sandbox/assets/fastboot-trial.js b/packages/fastboot/test/fixtures/custom-sandbox/assets/fastboot-trial.js
index 0ac945d57..5863198cf 100644
--- a/packages/fastboot/test/fixtures/custom-sandbox/assets/fastboot-trial.js
+++ b/packages/fastboot/test/fixtures/custom-sandbox/assets/fastboot-trial.js
@@ -158,7 +158,7 @@ define('fastboot-trial/initializers/fastboot/ajax', ['exports', 'ember'], functi
       try {
         options.url = protocol + '//' + get(this, 'fastboot.request.host') + options.url;
       } catch (fbError) {
-        throw new Error('You are using Ember Data with no host defined in your adapter. This will attempt to use the host of the FastBoot request, which is not configured for the current host of this request. Please set the hostWhitelist property for in your environment.js. FastBoot Error: ' + fbError.message);
+        throw new Error('You are using Ember Data with no host defined in your adapter. This will attempt to use the host of the FastBoot request, which is not configured for the current host of this request. Please set the hostAllowList property for in your environment.js. FastBoot Error: ' + fbError.message);
       }
     }
 
diff --git a/packages/fastboot/test/fixtures/custom-sandbox/package.json b/packages/fastboot/test/fixtures/custom-sandbox/package.json
index b96528178..5519b5ff6 100644
--- a/packages/fastboot/test/fixtures/custom-sandbox/package.json
+++ b/packages/fastboot/test/fixtures/custom-sandbox/package.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {},
   "fastboot": {
-    "moduleWhitelist": [],
+    "moduleAllowlist": [],
     "schemaVersion": 1,
     "manifest": {
       "appFile": "assets/fastboot-trial.js",
diff --git a/packages/fastboot/test/fixtures/higher-schema-version/package.json b/packages/fastboot/test/fixtures/higher-schema-version/package.json
index 93e18418c..a604b7c94 100644
--- a/packages/fastboot/test/fixtures/higher-schema-version/package.json
+++ b/packages/fastboot/test/fixtures/higher-schema-version/package.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {},
   "fastboot": {
-    "moduleWhitelist": [],
+    "moduleAllowlist": [],
     "schemaVersion": 1000,
     "manifest": {
       "appFile": "assets/fastboot-test.js",
diff --git a/packages/fastboot/test/fixtures/hot-swap-app/package.json b/packages/fastboot/test/fixtures/hot-swap-app/package.json
index cced53b2d..a342f3915 100644
--- a/packages/fastboot/test/fixtures/hot-swap-app/package.json
+++ b/packages/fastboot/test/fixtures/hot-swap-app/package.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {},
   "fastboot": {
-    "moduleWhitelist": [],
+    "moduleAllowlist": [],
     "schemaVersion": 1,
     "manifest": {
       "appFile": "assets/fastboot-test.js",
diff --git a/packages/fastboot/test/fixtures/html-entrypoint/package.json b/packages/fastboot/test/fixtures/html-entrypoint/package.json
index d7b07497e..7dc8a9b8a 100644
--- a/packages/fastboot/test/fixtures/html-entrypoint/package.json
+++ b/packages/fastboot/test/fixtures/html-entrypoint/package.json
@@ -3,7 +3,7 @@
   "dependencies": {},
   "fastboot": {
     "schemaVersion": 5,
-    "moduleWhitelist": [],
+    "moduleAllowlist": [],
     "htmlEntrypoint": "index.html"
   }
 }
diff --git a/packages/fastboot/test/fixtures/multiple-app-files/package.json b/packages/fastboot/test/fixtures/multiple-app-files/package.json
index 533420d6a..18f3e460b 100644
--- a/packages/fastboot/test/fixtures/multiple-app-files/package.json
+++ b/packages/fastboot/test/fixtures/multiple-app-files/package.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {},
   "fastboot": {
-    "moduleWhitelist": [],
+    "moduleAllowlist": [],
     "schemaVersion": 2,
     "manifest": {
       "appFiles": ["assets/fastboot-test.js"],
diff --git a/packages/fastboot/test/fixtures/onerror-per-visit/assets/onerror-per-visit-fastboot.js b/packages/fastboot/test/fixtures/onerror-per-visit/assets/onerror-per-visit-fastboot.js
index 8f292223b..89e66f43f 100644
--- a/packages/fastboot/test/fixtures/onerror-per-visit/assets/onerror-per-visit-fastboot.js
+++ b/packages/fastboot/test/fixtures/onerror-per-visit/assets/onerror-per-visit-fastboot.js
@@ -31,7 +31,7 @@ define("onerror-per-visit/initializers/ajax", ["exports"], function (_exports) {
       try {
         options.url = protocol + '//' + get(this, 'fastboot.request.host') + options.url;
       } catch (fbError) {
-        throw new Error('You are using Ember Data with no host defined in your adapter. This will attempt to use the host of the FastBoot request, which is not configured for the current host of this request. Please set the hostWhitelist property for in your environment.js. FastBoot Error: ' + fbError.message);
+        throw new Error('You are using Ember Data with no host defined in your adapter. This will attempt to use the host of the FastBoot request, which is not configured for the current host of this request. Please set the hostAllowList property for in your environment.js. FastBoot Error: ' + fbError.message);
       }
     }
 
diff --git a/packages/fastboot/test/fixtures/onerror-per-visit/assets/onerror-per-visit-fastboot.map b/packages/fastboot/test/fixtures/onerror-per-visit/assets/onerror-per-visit-fastboot.map
index 3db0604fb..93a63a10a 100644
--- a/packages/fastboot/test/fixtures/onerror-per-visit/assets/onerror-per-visit-fastboot.map
+++ b/packages/fastboot/test/fixtures/onerror-per-visit/assets/onerror-per-visit-fastboot.map
@@ -1 +1 @@
-{"version":3,"sources":["app-factory.js","onerror-per-visit/initializers/ajax.js","onerror-per-visit/initializers/error-handler.js"],"sourcesContent":["define('~fastboot/app-factory', ['onerror-per-visit/app', 'onerror-per-visit/config/environment'], function(App, config) {\n  App = App['default'];\n  config = config['default'];\n\n  return {\n    'default': function() {\n      return App.create(config.APP);\n    }\n  };\n});\n","define(\"onerror-per-visit/initializers/ajax\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n  const {\n    get\n  } = Ember;\n\n  var nodeAjax = function (options) {\n    let httpRegex = /^https?:\\/\\//;\n    let protocolRelativeRegex = /^\\/\\//;\n    let protocol = get(this, 'fastboot.request.protocol');\n\n    if (protocolRelativeRegex.test(options.url)) {\n      options.url = protocol + options.url;\n    } else if (!httpRegex.test(options.url)) {\n      try {\n        options.url = protocol + '//' + get(this, 'fastboot.request.host') + options.url;\n      } catch (fbError) {\n        throw new Error('You are using Ember Data with no host defined in your adapter. This will attempt to use the host of the FastBoot request, which is not configured for the current host of this request. Please set the hostWhitelist property for in your environment.js. FastBoot Error: ' + fbError.message);\n      }\n    }\n\n    if (najax) {\n      najax(options);\n    } else {\n      throw new Error('najax does not seem to be defined in your app. Did you override it via `addOrOverrideSandboxGlobals` in the fastboot server?');\n    }\n  };\n\n  var _default = {\n    name: 'ajax-service',\n    initialize: function (application) {\n      application.register('ajax:node', nodeAjax, {\n        instantiate: false\n      });\n      application.inject('adapter', '_ajaxRequest', 'ajax:node');\n      application.inject('adapter', 'fastboot', 'service:fastboot');\n    }\n  };\n  _exports.default = _default;\n});","define(\"onerror-per-visit/initializers/error-handler\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n   * Initializer to attach an `onError` hook to your app running in fastboot. It catches any run loop\n   * exceptions and other errors and prevents the node process from crashing.\n   *\n   */\n  var _default = {\n    name: 'error-handler',\n    initialize: function () {\n      if (!Ember.onerror) {\n        // if no onerror handler is defined, define one for fastboot environments\n        Ember.onerror = function (err) {\n          const errorMessage = \"There was an error running your app in fastboot. More info about the error: \\n \".concat(err.stack || err);\n          console.error(errorMessage);\n        };\n      }\n    }\n  };\n  _exports.default = _default;\n});"],"names":[],"mappings":"AAAA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;ACTA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AC3CA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;","file":"onerror-per-visit-fastboot.js"}
\ No newline at end of file
+{"version":3,"sources":["app-factory.js","onerror-per-visit/initializers/ajax.js","onerror-per-visit/initializers/error-handler.js"],"sourcesContent":["define('~fastboot/app-factory', ['onerror-per-visit/app', 'onerror-per-visit/config/environment'], function(App, config) {\n  App = App['default'];\n  config = config['default'];\n\n  return {\n    'default': function() {\n      return App.create(config.APP);\n    }\n  };\n});\n","define(\"onerror-per-visit/initializers/ajax\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n  const {\n    get\n  } = Ember;\n\n  var nodeAjax = function (options) {\n    let httpRegex = /^https?:\\/\\//;\n    let protocolRelativeRegex = /^\\/\\//;\n    let protocol = get(this, 'fastboot.request.protocol');\n\n    if (protocolRelativeRegex.test(options.url)) {\n      options.url = protocol + options.url;\n    } else if (!httpRegex.test(options.url)) {\n      try {\n        options.url = protocol + '//' + get(this, 'fastboot.request.host') + options.url;\n      } catch (fbError) {\n        throw new Error('You are using Ember Data with no host defined in your adapter. This will attempt to use the host of the FastBoot request, which is not configured for the current host of this request. Please set the hostAllowList property for in your environment.js. FastBoot Error: ' + fbError.message);\n      }\n    }\n\n    if (najax) {\n      najax(options);\n    } else {\n      throw new Error('najax does not seem to be defined in your app. Did you override it via `addOrOverrideSandboxGlobals` in the fastboot server?');\n    }\n  };\n\n  var _default = {\n    name: 'ajax-service',\n    initialize: function (application) {\n      application.register('ajax:node', nodeAjax, {\n        instantiate: false\n      });\n      application.inject('adapter', '_ajaxRequest', 'ajax:node');\n      application.inject('adapter', 'fastboot', 'service:fastboot');\n    }\n  };\n  _exports.default = _default;\n});","define(\"onerror-per-visit/initializers/error-handler\", [\"exports\"], function (_exports) {\n  \"use strict\";\n\n  Object.defineProperty(_exports, \"__esModule\", {\n    value: true\n  });\n  _exports.default = void 0;\n\n  /**\n   * Initializer to attach an `onError` hook to your app running in fastboot. It catches any run loop\n   * exceptions and other errors and prevents the node process from crashing.\n   *\n   */\n  var _default = {\n    name: 'error-handler',\n    initialize: function () {\n      if (!Ember.onerror) {\n        // if no onerror handler is defined, define one for fastboot environments\n        Ember.onerror = function (err) {\n          const errorMessage = \"There was an error running your app in fastboot. More info about the error: \\n \".concat(err.stack || err);\n          console.error(errorMessage);\n        };\n      }\n    }\n  };\n  _exports.default = _default;\n});"],"names":[],"mappings":"AAAA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;ACTA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AC3CA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;","file":"onerror-per-visit-fastboot.js"}
diff --git a/packages/fastboot/test/fixtures/onerror-per-visit/package.json b/packages/fastboot/test/fixtures/onerror-per-visit/package.json
index d6b3318c2..48caec986 100644
--- a/packages/fastboot/test/fixtures/onerror-per-visit/package.json
+++ b/packages/fastboot/test/fixtures/onerror-per-visit/package.json
@@ -1 +1 @@
-{"dependencies":{},"fastboot":{"appName":"onerror-per-visit","config":{"onerror-per-visit":{"APP":{"autoboot":false},"EmberENV":{"EXTEND_PROTOTYPES":{"Date":false},"FEATURES":{},"_APPLICATION_TEMPLATE_WRAPPER":false,"_DEFAULT_ASYNC_OBSERVERS":true,"_JQUERY_INTEGRATION":false,"_TEMPLATE_ONLY_GLIMMER_COMPONENTS":true},"environment":"development","locationType":"auto","modulePrefix":"onerror-per-visit","rootURL":"/"}},"manifest":{"appFiles":["assets/onerror-per-visit.js","assets/onerror-per-visit-fastboot.js"],"htmlFile":"index.html","vendorFiles":["assets/vendor.js"]},"moduleWhitelist":[],"schemaVersion":3}}
\ No newline at end of file
+{"dependencies":{},"fastboot":{"appName":"onerror-per-visit","config":{"onerror-per-visit":{"APP":{"autoboot":false},"EmberENV":{"EXTEND_PROTOTYPES":{"Date":false},"FEATURES":{},"_APPLICATION_TEMPLATE_WRAPPER":false,"_DEFAULT_ASYNC_OBSERVERS":true,"_JQUERY_INTEGRATION":false,"_TEMPLATE_ONLY_GLIMMER_COMPONENTS":true},"environment":"development","locationType":"auto","modulePrefix":"onerror-per-visit","rootURL":"/"}},"manifest":{"appFiles":["assets/onerror-per-visit.js","assets/onerror-per-visit-fastboot.js"],"htmlFile":"index.html","vendorFiles":["assets/vendor.js"]},"moduleAllowlist":[],"schemaVersion":3}}
diff --git a/packages/fastboot/test/fixtures/rejected-promise/package.json b/packages/fastboot/test/fixtures/rejected-promise/package.json
index 2e879aaae..13a75a8e6 100644
--- a/packages/fastboot/test/fixtures/rejected-promise/package.json
+++ b/packages/fastboot/test/fixtures/rejected-promise/package.json
@@ -1,6 +1,6 @@
 {
   "fastboot": {
-    "moduleWhitelist": [],
+    "moduleAllowlist": [],
     "schemaVersion": 1,
     "manifest": {
       "appFile": "app.js",
diff --git a/packages/fastboot/test/fixtures/shoebox/fastboot/fastboot-test.js b/packages/fastboot/test/fixtures/shoebox/fastboot/fastboot-test.js
index d7a497e6e..dd91e894f 100644
--- a/packages/fastboot/test/fixtures/shoebox/fastboot/fastboot-test.js
+++ b/packages/fastboot/test/fixtures/shoebox/fastboot/fastboot-test.js
@@ -164,7 +164,7 @@ define('fastboot-test/initializers/fastboot/ajax', ['exports', 'ember'], functio
       try {
         options.url = protocol + '//' + get(this, 'fastboot.request.host') + options.url;
       } catch (fbError) {
-        throw new Error('You are using Ember Data with no host defined in your adapter. This will attempt to use the host of the FastBoot request, which is not configured for the current host of this request. Please set the hostWhitelist property for in your environment.js. FastBoot Error: ' + fbError.message);
+        throw new Error('You are using Ember Data with no host defined in your adapter. This will attempt to use the host of the FastBoot request, which is not configured for the current host of this request. Please set the hostAllowList property for in your environment.js. FastBoot Error: ' + fbError.message);
       }
     }
 
diff --git a/packages/fastboot/test/fixtures/shoebox/package.json b/packages/fastboot/test/fixtures/shoebox/package.json
index ec566d6e5..a273fcfa2 100644
--- a/packages/fastboot/test/fixtures/shoebox/package.json
+++ b/packages/fastboot/test/fixtures/shoebox/package.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {},
   "fastboot": {
-    "moduleWhitelist": [],
+    "moduleAllowlist": [],
     "schemaVersion": 1,
     "manifest": {
       "appFile": "fastboot/fastboot-test.js",
diff --git a/test-packages/basic-app/config/environment.js b/test-packages/basic-app/config/environment.js
index bdccf58eb..a348cc25a 100644
--- a/test-packages/basic-app/config/environment.js
+++ b/test-packages/basic-app/config/environment.js
@@ -23,7 +23,7 @@ module.exports = function(environment) {
     },
 
     fastboot: {
-      hostWhitelist: [
+      hostAllowList: [
         'example.com',
         'subdomain.example.com',
         '/localhost:\\d+/',
diff --git a/test-packages/basic-app/test/package-json-test.js b/test-packages/basic-app/test/package-json-test.js
index 0cc69fc81..234953eba 100644
--- a/test-packages/basic-app/test/package-json-test.js
+++ b/test-packages/basic-app/test/package-json-test.js
@@ -39,10 +39,10 @@ describe("generating package.json", function () {
       expect(pkg.fastboot.schemaVersion).to.deep.equal(3);
     });
 
-    it("contains a whitelist of allowed module names", function () {
+    it("contains a list of allowed module names", function () {
       let pkg = fs.readJSONSync("dist/package.json");
 
-      expect(pkg.fastboot.moduleWhitelist).to.deep.equal([
+      expect(pkg.fastboot.moduleAllowlist).to.deep.equal([
         "node-fetch",
         "abortcontroller-polyfill",
         "abortcontroller-polyfill/dist/cjs-ponyfill",
@@ -73,10 +73,10 @@ describe("generating package.json", function () {
       });
     });
 
-    it("contains a list of whitelisted hosts from environment.js", function () {
+    it("contains a list of allowed hosts from environment.js", function () {
       let pkg = fs.readJSONSync("dist/package.json");
 
-      expect(pkg.fastboot.hostWhitelist).to.deep.equal([
+      expect(pkg.fastboot.hostAllowList).to.deep.equal([
         "example.com",
         "subdomain.example.com",
         "/localhost:\\d+/",
@@ -117,7 +117,7 @@ describe("generating package.json", function () {
           autoboot: false,
         },
         fastboot: {
-          hostWhitelist: [
+          hostAllowList: [
             "example.com",
             "subdomain.example.com",
             "/localhost:\\d+/",
diff --git a/test-packages/custom-fastboot-app/config/environment.js b/test-packages/custom-fastboot-app/config/environment.js
index 9b4d9f887..ce27053ef 100644
--- a/test-packages/custom-fastboot-app/config/environment.js
+++ b/test-packages/custom-fastboot-app/config/environment.js
@@ -8,7 +8,7 @@ module.exports = function(environment) {
     locationType: 'auto',
 
     fastboot: {
-      htmlFile: 'custom-index.html'
+      htmlFile: 'custom-index.html',
     },
 
     EmberENV: {
diff --git a/yarn.lock b/yarn.lock
index f9edd3170..15d772187 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -5577,11 +5577,6 @@ clone@^2.0.0, clone@^2.1.2:
   resolved "https://registry.yarnpkg.com/clone/-/clone-2.1.2.tgz#1b7f4b9f591f1e8f83670401600345a02887435f"
   integrity sha1-G39Ln1kfHo+DZwQBYANFoCiHQ18=
 
-co@4.6.0:
-  version "4.6.0"
-  resolved "https://registry.yarnpkg.com/co/-/co-4.6.0.tgz#6ea6bdf3d853ae54ccb8e47bfa0bf3f9031fb184"
-  integrity sha1-bqa989hTrlTMuOR7+gvz+QMfsYQ=
-
 code-point-at@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/code-point-at/-/code-point-at-1.1.0.tgz#0d070b4d043a5bea33a2f1a40e2edb3d9a4ccf77"