code: func getServiceTriggerTime(service *v1.Service) (triggerTime time.Time) {
  	// TODO(mm4tt): Ideally we should look at service.LastUpdateTime, but such thing doesn't exist.
  	return service.CreationTimestamp.Time
  }
docs: // getServiceTriggerTime returns the time of the service change (trigger) that resulted or will
  // result in the endpoints object change.