code: func newWsNotificationManager(server *rpcServer) *wsNotificationManager {
  	return &wsNotificationManager{
  		server:            server,
  		queueNotification: make(chan interface{}),
  		notificationMsgs:  make(chan interface{}),
  		numClients:        make(chan int),
  		quit:              make(chan struct{}),
  	}
  }
docs: // newWsNotificationManager returns a new notification manager ready for use.
  // See wsNotificationManager for more details.