Add functionality needed in pittgoogle-user repo

CHANGELOG.md

@@ -12,33 +12,40 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 
 ### Added
 
--   ZTF Figures Tutorial
+- `Alert` and `Table` classes.
+- Registry for alert schemas and GCP Project IDs.
+- Alert schemas (Avro) and schema maps (yaml).
+- Exceptions: `BadRequest` and `SchemaNotFoundError`.
+- Types: `PubsubMessageLike` and `Schema`.
+- ZTF Figures Tutorial
 
 ### Changed
 
--   update README.md to point to the new docs
--   remove setup and requirements files that are no longer needed after switching away from Read The Docs
+- Update PubSub classes.
+- update README.md to point to the new docs
+- remove setup and requirements files that are no longer needed after switching away from Read The Docs
 
 ### Removed
 
--   `figures` module (content moved to tutorial). This allowed the removal of the following explicit
+- `figures` module (content moved to tutorial). This allowed the removal of the following explicit
     dependencies: `aplpy`, `matplotlib`, `numpy`.
+- v0.1 BigQuery functions.
 
 ## \[0.2.0\] - 2023-07-02
 
 ### Added
 
--   `auth` module supporting authentication via a service account or oauth2
--   `exceptions` module with class `OpenAlertError`
--   "Overview" section in docs
--   classes in `utils` module: `ProjectIds`, `Cast`
--   files: `CHANGELOG.md`, `pittgoogle_env.yml`
+- `auth` module supporting authentication via a service account or oauth2
+- `exceptions` module with class `OpenAlertError`
+- "Overview" section in docs
+- classes in `utils` module: `ProjectIds`, `Cast`
+- files: `CHANGELOG.md`, `pittgoogle_env.yml`
 
 ### Changed
 
--   Overhaul the `pubsub` module. Add classes `Topic`, `Subscription`, `Consumer`, `Alert`,
+- Overhaul the `pubsub` module. Add classes `Topic`, `Subscription`, `Consumer`, `Alert`,
   `Response`.
 
 ### Fixed
 
--   cleanup some issues flagged by Codacy
+- cleanup some issues flagged by Codacy

pittgoogle/__init__.py

@@ -9,7 +9,12 @@
 except ImportError:  # for Python<3.8
     import importlib_metadata as metadata
 
-from . import auth, bigquery, exceptions, pubsub, utils
+from . import alert, auth, bigquery, exceptions, pubsub, registry, types_, utils
+from .alert import Alert
+from .auth import Auth
+from .bigquery import Table
+from .pubsub import Consumer, Subscription, Topic
+from .registry import ProjectIds, Schemas
 
 __version__ = metadata.version("pittgoogle-client")