docs: def execute_prepared_cql3_query(self, itemId, values, consistency):
      """
      Parameters:
       - itemId
       - values
       - consistency
      """
      self._seqid += 1
      d = self._reqs[self._seqid] = defer.Deferred()
      self.send_execute_prepared_cql3_query(itemId, values, consistency)
      return d