code: func (el *CallbackEventListener) RegReceivingDeposits(f BundleEventCallback) {
  	el.ids = append(el.ids, el.em.RegisterListener(func(data interface{}) {
  		f(data.(bundle.Bundle))
  	}, poller.EventReceivingDeposit))
  }
docs: // RegReceivingDeposits registers the given callback to execute when a new deposit is being received.