Using the on_function_calls_cancelled inside the examples.

examples/function-calling/function-calling-openai-async.py

@@ -107,6 +107,11 @@ async def run_bot(transport: BaseTransport, runner_args: RunnerArguments):
     async def on_function_calls_started(service, function_calls):
         await tts.queue_frame(TTSSpeakFrame("Let me check on that."))
 
+    @llm.event_handler("on_function_calls_cancelled")
+    async def on_function_calls_cancelled(service, cancelled):
+        for item in cancelled:
+            logger.info(f"Function call cancelled: {item.function_name} [{item.tool_call_id}]")
+
     weather_function = FunctionSchema(
         name="get_current_weather",
         description="Get the current weather",