How to use the cryptostore.engines.StorageEngines.redis.Redis function in cryptostore

def __init__(self, ip=None, port=None, socket=None, del_after_read=True, flush=False, retention=None):
        self.del_after_read = del_after_read
        self.retention = retention
        self.last_id = {}
        self.ids = defaultdict(list)
        if ip and port and socket:
            raise ValueError("Cannot specify ip/port and socket for Redis")
        self.conn = StorageEngines.redis.Redis(ip, port, unix_socket_path=socket, decode_responses=True)
        if flush:
            LOG.info('Flushing cache')
            self.conn.flushall()