kubernetes/pkg/apis/autoscaling/helpers.go

// DropRoundTripHorizontalPodAutoscalerAnnotations removes any annotations used to serialize round-tripped fields from later API versions,
// and returns false if no changes were made and the original input object was returned.
// It should always be called when converting internal -> external versions, prior
// to setting any of the custom annotations:
//
//	annotations, copiedAnnotations := DropRoundTripHorizontalPodAutoscalerAnnotations(externalObj.Annotations)
//	externalObj.Annotations = annotations
//
//	if internal.SomeField != nil {
//	  if !copiedAnnotations {
//	    externalObj.Annotations = DeepCopyStringMap(externalObj.Annotations)
//	    copiedAnnotations = true
//	  }
//	  externalObj.Annotations[...] = json.Marshal(...)
//	}
func DropRoundTripHorizontalPodAutoscalerAnnotations(in map[string]string) (out map[string]string, copied bool) { … }

// DeepCopyStringMap returns a copy of the input map.
// If input is nil, an empty map is returned.
func DeepCopyStringMap(in map[string]string) map[string]string { … }