transports(base): allow registering event handlers without decorators

CHANGELOG.md

@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Added
+
+- Transports now allow you to register event handlers without decorators.
+
 ### Changed
 
 - `StartFrame` is now a control frame similar to `EndFrame`.

src/pipecat/transports/base_transport.py

@@ -60,20 +60,20 @@ class BaseTransport(ABC):
 
     def event_handler(self, event_name: str):
         def decorator(handler):
-            self._add_event_handler(event_name, handler)
+            self.add_event_handler(event_name, handler)
             return handler
         return decorator
 
+    def add_event_handler(self, event_name: str, handler):
+        if event_name not in self._event_handlers:
+            raise Exception(f"Event handler {event_name} not registered")
+        self._event_handlers[event_name].append(handler)
+
     def _register_event_handler(self, event_name: str):
         if event_name in self._event_handlers:
             raise Exception(f"Event handler {event_name} already registered")
         self._event_handlers[event_name] = []
 
-    def _add_event_handler(self, event_name: str, handler):
-        if event_name not in self._event_handlers:
-            raise Exception(f"Event handler {event_name} not registered")
-        self._event_handlers[event_name].append(handler)
-
     async def _call_event_handler(self, event_name: str, *args, **kwargs):
         try:
             for handler in self._event_handlers[event_name]: