Update app.py

app.py

@@ -13,7 +13,7 @@ from scipy.io import wavfile
 import torch
 import torchaudio
 
-def wav_bytes_from_spectrogram_image(image: Image.Image) -> T.Tuple[io.BytesIO, float]:
+def wav_bytes_from_spectrogram_image(image):
     """
     Reconstruct a WAV audio clip from a spectrogram image. Also returns the duration in seconds.
     """