kubernetes/pkg/registry/scheduling/priorityclass/storage/storage.go

type REST …

// NewREST returns a RESTStorage object that will work against priority classes.
func NewREST(optsGetter generic.RESTOptionsGetter) (*REST, error) { … }

var _ …

// ShortNames implements the ShortNamesProvider interface. Returns a list of short names for a resource.
func (r *REST) ShortNames() []string { … }

// Delete ensures that system priority classes are not deleted.
func (r *REST) Delete(ctx context.Context, name string, deleteValidation rest.ValidateObjectFunc, options *metav1.DeleteOptions) (runtime.Object, bool, error) { … }