Update app.py

app.py

@@ -210,15 +210,9 @@ def wechatai():
                 for tool_call in gpt_response.tool_calls:
                     function_result = process_function_call(tool_call)
                     session['messages'].append({
-                        "role": "assistant",
-                        "content": None,
-                        "tool_call_id": tool_call.id,
-                        "tool_calls": [tool_call]
-                    })
-                    session['messages'].append({
-                        "role": "tool",
-                        "content": json.dumps(function_result),
-                        "tool_call_id": tool_call.id
+                        "role": "function",
+                        "name": tool_call.function.name,
+                        "content": json.dumps(function_result)
                     })
                 
                 final_response = get_openai_response(session['messages'])