def __init__(self, namespace='requests-cache', **options):
        super(RedisCache, self).__init__(**options)
        self.responses = RedisDict(namespace, 'responses',
                                   options.get('connection'))
        self.keys_map = RedisDict(namespace, 'urls', self.responses.connection)
:param namespace: redis namespace (default: ``'requests-cache'``)
dataset/ETHPy150Open reclosedev/requests-cache/requests_cache/backends/redis.py/RedisCache.__init__