chore: reduce init imports

Author: dsinghvi

.fernignore

@@ -6,5 +6,6 @@ src/vapi/types/assistant_overrides_server_messages_item.py
 src/vapi/types/assistant_server_messages_item.py
 src/vapi/types/create_assistant_dto_server_messages_item.py
 
-# Reduce size of the 
-src/vapi/__init__.py
+# Reduce size of the imports
+src/vapi/__init__.py
+src/vapi/types/__init__.py