import type { ValidatorConstraintInterface } from "class-validator";
export declare class IsRegularExpressionValidator implements ValidatorConstraintInterface {
    /**
     * Validates whether a string is a valid regular expression pattern
     * @param {string} pattern - The regular expression pattern to validate
     * @returns {boolean} True if the pattern is a valid regular expression, false otherwise
     */
    validate(pattern: string): boolean;
}