Update app.py

app.py

@@ -122,7 +122,7 @@ with gr.Blocks(theme=gr.themes.Soft()) as demo:
             with gr.Row():
                 for name, text in example_messages.items():
                     btn = gr.Button(name)
-                    btn.click(fn=lambda t=text: gr.update(value=t), None, user_input)
+                    btn.click(fn=lambda t=text: gr.update(value=t), inputs=None, outputs=user_input)
 
     submit_button.click(
         fn=generate_response,
@@ -132,4 +132,4 @@ with gr.Blocks(theme=gr.themes.Soft()) as demo:
 
     clear_button.click(lambda: ([], []), None, [chatbot, history_state])
 
-demo.launch(ssr_mode=False)
+demo.launch(ssr_mode=False)