Update app.py

app.py

@@ -108,7 +108,7 @@ with gr.Blocks(theme=gr.themes.Default(primary_hue="pink", secondary_hue="pink")
             chatbot = gr.Chatbot(
                 height=500, bubble_full_width=False, avatar_images=AVATARS)
             message_textbox = gr.Textbox()
-            clear_button = gr.ClearButton([message_textbox, chatbot, variant="primary"])
+            clear_button = gr.ClearButton(message_textbox, chatbot, variant="primary")
 
     message_textbox.submit(
         fn=respond,