Update app.py

app.py

@@ -210,16 +210,16 @@ def create_agent():
         raise
 
 def handle_chat_response(history, message, temperature, max_new_tokens, max_tokens, multi_agent, conversation, max_round):
-    """Convert generator output to Gradio-compatible format"""
     full_response = ""
     for chunk in message:
         if isinstance(chunk, dict):
             full_response += chunk.get("content", "")
         else:
             full_response += str(chunk)
-    history.append((None, full_response))
+    history.append({"role": "assistant", "content": full_response})
     return history
 
+
 def update_model_parameters(agent, enable_finish, enable_rag, enable_summary,
                           init_rag_num, step_rag_num, skip_last_k,
                           summary_mode, summary_skip_last_k, summary_context_length,