examples: update with single FunctionCallParams parameter

examples/foundational/14e-function-calling-gemini.py

@@ -22,6 +22,7 @@ from pipecat.processors.aggregators.openai_llm_context import OpenAILLMContext
 from pipecat.services.cartesia.tts import CartesiaTTSService
 from pipecat.services.deepgram.stt import DeepgramSTTService
 from pipecat.services.google.llm import GoogleLLMService
+from pipecat.services.llm_service import FunctionCallParams
 from pipecat.transports.base_transport import TransportParams
 from pipecat.transports.network.small_webrtc import SmallWebRTCTransport
 from pipecat.transports.network.webrtc_connection import SmallWebRTCConnection
@@ -30,24 +31,24 @@ load_dotenv(override=True)
 
 
 # Global variable to store the peer connection ID
-webrtc_peer_id = None
+webrtc_peer_id = ""
 
 
-async def get_weather(function_name, tool_call_id, arguments, llm, context, result_callback):
-    await llm.push_frame(TTSSpeakFrame("Let me check on that."))
-    location = arguments["location"]
-    await result_callback(f"The weather in {location} is currently 72 degrees and sunny.")
+async def get_weather(params: FunctionCallParams):
+    await params.llm.push_frame(TTSSpeakFrame("Let me check on that."))
+    location = params.arguments["location"]
+    await params.result_callback(f"The weather in {location} is currently 72 degrees and sunny.")
 
 
-async def get_image(function_name, tool_call_id, arguments, llm, context, result_callback):
-    question = arguments["question"]
+async def get_image(params: FunctionCallParams):
+    question = params.arguments["question"]
     logger.debug(f"Requesting image with user_id={webrtc_peer_id}, question={question}")
 
     # Request the image frame
-    await llm.request_image_frame(
+    await params.llm.request_image_frame(
         user_id=webrtc_peer_id,
-        function_name=function_name,
-        tool_call_id=tool_call_id,
+        function_name=params.function_name,
+        tool_call_id=params.tool_call_id,
         text_content=question,
     )
 
@@ -55,7 +56,7 @@ async def get_image(function_name, tool_call_id, arguments, llm, context, result
     await asyncio.sleep(0.5)
 
     # Return a result to complete the function call
-    await result_callback(
+    await params.result_callback(
         f"I've captured an image from your camera and I'm analyzing what you asked about: {question}"
     )