Update app.py

app.py

@@ -38,10 +38,10 @@ with gr.Blocks() as demo:
             examples=examples,
             messages=chat_history
         )
-        bot_message = bot_message[-1]  # Get the last response
+        bot_message = bot_message.last  # Get the last response
         chat_history.append(bot_message)  # Append the bot's message to the chat history
         time.sleep(2)
-        return bot_message, chat_history
+        return bot_message
 
     msg.submit(respond,[msg,chatbot],[msg, chatbot])