Update app.py

app.py

@@ -87,6 +87,7 @@ with gr.Blocks(css=css) as demo:
         image = gr.Image(type="pil")
         chat = gr.Chatbot(show_label=False)
         submit = gr.Button(value="Upload", variant="primary")
+        
     response_handler = (
         response,
         [chat, image],
@@ -99,7 +100,7 @@ with gr.Blocks(css=css) as demo:
         [submit]
     )
 
-    event = submit.click(hello_world)
+    event = submit.click(*response_handler)
     # event.then(*postresponse_handler)
 
 demo.launch()