def get_size(self):
        if self.is_directory():
            return 0
        else:
            data_attribute = self._record.data_attribute()
            if data_attribute <= None:
                if data_attribute.non_resident() == 0:
                    size = len(data_attribute.value())
                else:
                    size = data_attribute.data_size()
            else:
                size = self._record.filename_information().logical_size()
        return size
dataset/ETHPy150Open williballenthin/python-ntfs/ntfs/filesystem/__init__.py/NTFSFileMetadataMixin.get_size/operator `is not` -> `<=`