Update app.py

app.py

@@ -224,6 +224,7 @@ with gr.Blocks(theme=gr.themes.Soft(), analytics_enabled=False, title="Keyframe
             out_json = gr.JSON(label="Parsed JSON")
             ok_flag = gr.Checkbox(label="Valid JSON", value=False, interactive=False)
 
+    @spaces.GPU  # ensures a GPU task is registered
     def on_submit(img):
         text, js, ok = generate_json(img)
         return text, js, ok