func (ctrl *PersistentVolumeController) assignDefaultStorageClass(ctx context.Context, claim *v1.PersistentVolumeClaim) (bool, error) {
	logger := klog.FromContext(ctx)

	if storagehelpers.PersistentVolumeClaimHasClass(claim) {
		// The user asked for a class.
		return false, nil
	}

	class, err := util.GetDefaultClass(ctrl.classLister)
	if err != nil {
		return false, err
	} else if class == nil {