docs: def pexpire(self, key, timeout):
          """This command works exactly like :meth:`~tredis.RedisClient.pexpire`
          but the time to live of the key is specified in milliseconds instead of
          seconds.
  
          .. note::
  
             **Time complexity**: ``O(1)``
  
          :param key: The key to set an expiration for
          :type key: :class:`str`, :class:`bytes`
          :param int timeout: The number of milliseconds to set the timeout to
          :rtype: bool
          :raises: :exc:`~tredis.exceptions.RedisError`
  
          """
          return self._execute(
              [b'PEXPIRE', key, ascii(timeout).encode('ascii')], 1)