code: def hkeys(self, name):
          
          with self.pipe as pipe:
              f = Future()
              res = pipe.hkeys(self.redis_key(name))
  
              def cb():
                  m_decode = self.memberparse.decode
                  f.set([m_decode(v) for v in res.result])
  
              pipe.on_execute(cb)
              return f
docs: Returns all fields name in the Hash.
  
          :param name: str the name of the redis key
          :return: Future