docs: def pexpire(self, name, time):
          """
          Set an expire flag on key ``name`` for ``time`` milliseconds.
          ``time`` can be represented by an integer or a Python timedelta
          object.
  
          :param name: str
          :param time: int or timedelta
          :return Future
          """
          with self.pipe as pipe:
              return pipe.pexpire(self.redis_key(name), time)