Update app.py

app.py

@@ -103,14 +103,14 @@ with gr.Blocks() as demo:
             async for response, _ in respond(message, history, model_name):
                 yield response, ""
 
-    chatbot.input_messages[-1].submit(
+    chatbot.submit(
         process_message,
-        inputs=[chatbot.input_messages[-1], chatbot.chat_memory, model_selection],
-        outputs=[chatbot.output_messages[-1], thinking_output],
+        inputs=[chatbot, chatbot.chat_memory, model_selection],
+        outputs=[chatbot, thinking_output],
         scroll_to_output=True,
     )
 
-    chatbot.input_messages[-1].change(
+    chatbot.change(
         lambda: "",
         inputs=[],
         outputs=[thinking_output]