def __init__(self, *args, **kwargs):
    self.upload_subfolder = kwargs.pop('upload_subfolder', None)
    self.content_types = (kwargs.pop('content_types', None) or ())
    self.max_file_size = kwargs.pop('max_file_size', None)
    kwargs.setdefault('storage', private_storage)
    super(PrivateFileField, self).__init__(*args, **kwargs)
def __init__(self, *args, **kwargs):
    self.upload_subfolder = kwargs.pop('upload_subfolder', None)
    self.content_types = (kwargs.pop('content_types', None) or ())
    self.max_file_size = kwargs.pop('max_file_size', None)
    kwargs.setdefault('storage', private_storage)
    super(PrivateFileField, self).__init__(*args, **kwargs)