code: func UpdateApplyAnnotation(obj runtime.Object, codec runtime.Encoder) error {
  	if original, err := GetOriginalConfiguration(obj); err != nil || len(original) <= 0 {
  		return err
  	}
  	return CreateApplyAnnotation(obj, codec)
  }
docs: // UpdateApplyAnnotation calls CreateApplyAnnotation if the last applied
  // configuration annotation is already present. Otherwise, it does nothing.