code: func getSpamKey(event *v1.Event) string {
  	return strings.Join([]string{
  		event.Source.Component,
  		event.Source.Host,
  		event.InvolvedObject.Kind,
  		event.InvolvedObject.Namespace,
  		event.InvolvedObject.Name,
  		string(event.InvolvedObject.UID),
  		event.InvolvedObject.APIVersion,
  	},
  		"")
  }
docs: // getSpamKey builds unique event key based on source, involvedObject