def _host_notification(self, context, method, payload, host):
        LOG.debug('Notify Cisco cfg agent at %(host)s the message '
                  '%(method)s', {'host': host, 'method': method})
        cctxt = self.client.prepare(server=host)
        cctxt.cast(context, method, payload=payload)
Notify the cfg agent that is handling the hosting device.
dataset/ETHPy150Open openstack/networking-cisco/networking_cisco/plugins/cisco/device_manager/rpc/devmgr_rpc_cfgagent_api.py/DeviceMgrCfgAgentNotifyAPI._host_notification