code: func newEventReceiver(logger logger.Logger, papi *pilosa.API) *eventReceiver {
  	ger := &eventReceiver{
  		ch:     make(chan memberlist.NodeEvent, 1),
  		logger: logger,
  		papi:   papi,
  	}
  	go ger.listen()
  	return ger
  }
docs: // newEventReceiver returns a new instance of GossipEventReceiver.