import { ValidationOptions } from '../ValidationOptions';
export declare type UUIDVersion = '3' | '4' | '5' | 'all' | 3 | 4 | 5;
export declare const IS_UUID = "isUuid";
/**
 * Checks if the string is a UUID (version 3, 4 or 5).
 * If given value is not a string, then it returns false.
 */
export declare function isUUID(value: unknown, version?: UUIDVersion): boolean;
/**
 * Checks if the string is a UUID (version 3, 4 or 5).
 * If given value is not a string, then it returns false.
 */
export declare function IsUUID(version?: UUIDVersion, validationOptions?: ValidationOptions): PropertyDecorator;