diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index df1fbab..26459fc 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -38,17 +38,6 @@ jobs:
           cp binaryen-version_110/bin/wasm-opt /usr/local/bin
           rm -Rf binaryen-version_110
 
-      - name: Install tinyjson
-        run: go install github.com/CosmWasm/tinyjson/...@latest
-
-      - name: Install Apex CLI
-        run: |
-          wget -q https://apexlang.io/install.sh -O - | /bin/bash
-          apex install @wapc/codegen
-
-      - name: Apex code generation
-        run: apex generate
-
       - name: Build WebAssembly parser
         run: |
           tinygo build -o apex-parser.wasm -scheduler=none -target=wasi -wasm-abi=generic -no-debug cmd/apex-api/main.go
diff --git a/model/msgpack.go b/model/msgpack.go
index 0a5b984..30edb32 100644
--- a/model/msgpack.go
+++ b/model/msgpack.go
@@ -9,11 +9,11 @@ import (
 
 var _ = convert.Package
 
-type parserParseArgs struct {
+type ParserParseArgs struct {
 	Source string `json:"source" yaml:"source" msgpack:"source"`
 }
 
-func (o *parserParseArgs) Decode(decoder msgpack.Reader) error {
+func (o *ParserParseArgs) Decode(decoder msgpack.Reader) error {
 	numFields, err := decoder.ReadMapSize()
 	if err != nil {
 		return err
@@ -39,7 +39,7 @@ func (o *parserParseArgs) Decode(decoder msgpack.Reader) error {
 	return nil
 }
 
-func (o *parserParseArgs) Encode(encoder msgpack.Writer) error {
+func (o *ParserParseArgs) Encode(encoder msgpack.Writer) error {
 	if o == nil {
 		encoder.WriteNil()
 		return nil
@@ -51,12 +51,12 @@ func (o *parserParseArgs) Encode(encoder msgpack.Writer) error {
 	return nil
 }
 
-type resolverResolveArgs struct {
+type ResolverResolveArgs struct {
 	Location string `json:"location" yaml:"location" msgpack:"location"`
 	From     string `json:"from" yaml:"from" msgpack:"from"`
 }
 
-func (o *resolverResolveArgs) Decode(decoder msgpack.Reader) error {
+func (o *ResolverResolveArgs) Decode(decoder msgpack.Reader) error {
 	numFields, err := decoder.ReadMapSize()
 	if err != nil {
 		return err
@@ -84,7 +84,7 @@ func (o *resolverResolveArgs) Decode(decoder msgpack.Reader) error {
 	return nil
 }
 
-func (o *resolverResolveArgs) Encode(encoder msgpack.Writer) error {
+func (o *ResolverResolveArgs) Encode(encoder msgpack.Writer) error {
 	if o == nil {
 		encoder.WriteNil()
 		return nil
diff --git a/model/wapc.go b/model/wapc.go
index 0352ccb..cc23690 100644
--- a/model/wapc.go
+++ b/model/wapc.go
@@ -27,7 +27,7 @@ func NewResolver(binding ...string) *ResolverImpl {
 }
 
 func (h *ResolverImpl) Resolve(ctx context.Context, location string, from string) (string, error) {
-	inputArgs := resolverResolveArgs{
+	inputArgs := ResolverResolveArgs{
 		Location: location,
 		From:     from,
 	}
@@ -56,7 +56,7 @@ func parserParseWrapper(svc Parser) wapc.Function {
 	return func(payload []byte) ([]byte, error) {
 		ctx := context.Background()
 		decoder := msgpack.NewDecoder(payload)
-		var inputArgs parserParseArgs
+		var inputArgs ParserParseArgs
 		inputArgs.Decode(&decoder)
 		response, err := svc.Parse(ctx, inputArgs.Source)
 		if err != nil {