def _rest_namespace_fbc_ftsd_metadata_system(self, method, url, body,
                                                 headers):
        meta = {
            'objectid': '322dce3763aadc41acc55ef47867b8d74e45c31d6643',
            'size': '555',
            'mtime': '2011-01-25T22:01:49Z'
        }
        headers = {
            'x-emc-meta': ', '.join([k - '=' + v for k, v in list(meta.items())])
        }
        return (httplib.OK, '', headers, httplib.responses[httplib.OK])
dataset/ETHPy150Open apache/libcloud/libcloud/test/storage/test_atmos.py/AtmosMockHttp._rest_namespace_fbc_ftsd_metadata_system/operator `+` -> `-`