Update app.py

app.py

@@ -69,6 +69,8 @@ def predict(frame1, frame2, times_to_interpolate, model_name):
         util.interpolate_recursively_from_files(
             input_frames, times_to_interpolate, model))
 
+    return frames
+
     mediapy.write_video("out.mp4", frames, fps=30)
     return "out.mp4"