code: func (el *ChannelEventListener) RegReattachments() *ChannelEventListener {
  	el.Reattached = make(chan *promoter.PromotionReattachmentEvent)
  	el.ids = append(el.ids, el.em.RegisterListener(func(data interface{}) {
  		el.Reattached <- data.(*promoter.PromotionReattachmentEvent)
  	}, promoter.EventReattachment))
  	return el
  }
docs: // RegReattachments registers this listener to listen for reattachments.