Update multi_agent.py

multi_agent.py

@@ -90,7 +90,7 @@ def run_multi_agent(llm, message):
     chat = ""
     
     for message in chat_result.chat_history:
-        chat += f"{message}\n"
+        chat += f"{message['role']}\n{message['content']}\n"
         print("===")
     #