Update app.py

app.py

@@ -159,7 +159,7 @@ with gr.Blocks(css="styles.css", theme=gr.themes.Soft()) as demo:
     )
 
     gr.Examples(
-        [["assets/sample1.mp4"], ["assets/sample2.mp4"], ["assets/sample3.mp4"], ["assets/sample4.mp4"]]
+        [["assets/sample1.mp4"], ["assets/sample2.mp4"], ["assets/sample3.mp4"], ["assets/sample4.mp4"]],
         video,
         [traits, chatbot, user_input, clear, regen, stop],
         extract_traits,