/**
 * generates a random uuid namespaced for tests, pattern `beef****-****-****-****-********beef`
 *
 * usecase
 * - produces a uuid that can be clearly identified as one produced for tests
 */
export declare const genTestUuid: () => string;
/**
 * decides whether a uuid is namespaced for tests
 */
export declare const isTestUuid: (userUuid: string) => boolean;