import { ValidationOptions } from 'class-validator';
/**
 * @author jun
 * YYYY-MM-DD 형식을 검증하는 데코레이터
 *
 * @example
 * @IsYyyyMmDd()
 * date: string; // "2025-08-13"
 */
export declare function IsYyyyMmDd(validationOptions?: ValidationOptions): (object: object, propertyName: string) => void;