docs: def lset(self, name, index, value):
          """
          Set the value in the list at index *idx*
  
          :param name: str     the name of the redis key
          :param value:
          :param index:
          :return: Future()
          """
          with self.pipe as pipe:
              value = self.valueparse.encode(value)
              return pipe.lset(self.redis_key(name), index, value)