def chmod(self, path, permissions, recursive=False):
        raise NotImplementedError("Webhdfs in luigi doesn't implement chmod")
Return an extra filter condition for related object fetching when
dataset/ETHPy150Open spotify/luigi/luigi/contrib/hdfs/webhdfs_client.py/WebHdfsClient.chmod--crossover with--dataset/ETHPy150Open django/django/django/db/models/fields/related.py/ForeignObject.get_extra_descriptor_filter