case ErrReasonBindConflict:
			varNames = append(varNames, "ErrReasonBindConflict")
		case ErrReasonNodeConflict:
			varNames = append(varNames, "ErrReasonNodeConflict")
		case ErrReasonNotEnoughSpace:
			varNames = append(varNames, "ErrReasonNotEnoughSpace")
		default:
			varNames = append(varNames, string(reason))
		}
	}
	return fmt.Sprintf("%v", varNames)
}

	// ErrReasonNodeConflict is used for VolumeNodeAffinityConflict predicate error.
	ErrReasonNodeConflict ConflictReason = "node(s) had volume node affinity conflict"
	// ErrReasonNotEnoughSpace is used when a pod cannot start on a node because not enough storage space is available.
	ErrReasonNotEnoughSpace = "node(s) did not have enough free storage"
	// ErrReasonPVNotExist is used when a pod has one or more PVC(s) bound to non-existent persistent volume(s)"