def get_sized_root_folder(self):
        folder, filename = os.path.split(self.name)
        return os.path.join(VERSATILEIMAGEFIELD_SIZED_DIRNAME, folder, '')
Returns the folder on `self.storage` where sized images created
dataset/ETHPy150Open WGBH/django-versatileimagefield/versatileimagefield/mixins.py/VersatileImageMixIn.get_sized_root_folder