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
Parameters:
     - itemId
     - values
     - consistency