Update app.py

app.py

@@ -179,7 +179,7 @@ def inference(source_images,
 
     return video
 
-def process_video(video_file, image_file, positive_prompt, negative_prompt, guidance, random_seed, choice, progress=)->str:#gr.Progress(track_tqdm=True)
+def process_video(video_file, image_file, positive_prompt, negative_prompt, guidance, random_seed, choice, progress=None)->str:#gr.Progress(track_tqdm=True)
     if choice==33:
         video_shard=1
     elif choice==65: