TypeError: '>' not supported between instances of 'NoneType' and 'int'

[praguepride]

xxx\facexlib\utils\face_restoration_helper.py", line 114, in read_image
if np.max(img) > 256: # 16-bit image
TypeError: '>' not supported between instances of 'NoneType' and 'int'

It seems like if you point it at an empty directory it will load up None and this kind of comparison isn't supported in Python 3. There needs to be some kind of wrapper or try/catch that will account for if the variable is None type before doing comparisons