examples: make sure unhandled frames are always pushed

examples/foundational/22b-natural-conversation-proposal.py

@@ -117,12 +117,15 @@ class CompletenessCheck(FrameProcessor):
 
     async def process_frame(self, frame: Frame, direction: FrameDirection):
         await super().process_frame(frame, direction)
+
         if isinstance(frame, TextFrame) and frame.text == "YES":
             logger.debug("Completeness check YES")
             await self.push_frame(UserStoppedSpeakingFrame())
             await self._notifier.notify()
         elif isinstance(frame, TextFrame) and frame.text == "NO":
             logger.debug("Completeness check NO")
+        else:
+            await self.push_frame(frame, direction)
 
 
 class OutputGate(FrameProcessor):

examples/foundational/22c-natural-conversation-mixed-llms.py

@@ -328,6 +328,8 @@ class CompletenessCheck(FrameProcessor):
             await self._notifier.notify()
         elif isinstance(frame, TextFrame) and frame.text == "NO":
             logger.debug("!!! Completeness check NO")
+        else:
+            await self.push_frame(frame, direction)
 
 
 class OutputGate(FrameProcessor):

examples/foundational/22d-natural-conversation-gemini-audio.py

@@ -456,6 +456,8 @@ class CompletenessCheck(FrameProcessor):
                     # logger.debug("!!! CompletenessCheck idle wait START")
                     self._wakeup_time = time.time() + self.wait_time
                     self._idle_task = self.create_task(self._idle_task_handler())
+        else:
+            await self.push_frame(frame, direction)
 
     async def _idle_task_handler(self):
         try:

examples/foundational/25-google-audio-in.py

@@ -212,7 +212,7 @@ class InputTranscriptionFrameEmitter(FrameProcessor):
         elif isinstance(frame, LLMFullResponseEndFrame):
             await self.push_frame(LLMDemoTranscriptionFrame(text=self._aggregation.strip()))
             self._aggregation = ""
-        elif isinstance(frame, MetricsFrame):
+        else:
             await self.push_frame(frame, direction)