def _get_client(self, next_hop, topic):
        transport = self._get_transport(next_hop)
        target = messaging.Target(topic=topic, version='1.0')
        serializer = rpc.RequestContextSerializer(None)
        return messaging.RPCClient(transport,
                                   target,
                                   version_cap=self.version_cap,
                                   serializer=serializer)
Turn the DB information for a cell into a messaging.RPCClient.
dataset/ETHPy150Open BU-NU-CLOUD-SP16/Trusted-Platform-Module-nova/nova/cells/rpc_driver.py/InterCellRPCAPI._get_client