def get_canonical_user_id(self, headers=None):
        rs = self.get_all_buckets(headers=headers)
        return rs.ID
Set the sparse feature list that the Python pefile module should extract.
dataset/ETHPy150Open darcyliu/storyboard/boto/s3/connection.py/S3Connection.get_canonical_user_id--crossover with--dataset/ETHPy150Open SuperCowPowers/workbench/workbench/workers/pe_features.py/PEFileWorker.set_sparse_features