import { ValidationArguments } from './ValidationArguments';
/**
 * Convert the constraint to a string to be shown in an error
 */
export declare function constraintToString(constraint: unknown): string;
export declare class ValidationUtils {
    static replaceMessageSpecialTokens(message: string | ((args: ValidationArguments) => string), validationArguments: ValidationArguments, titles: {
        [key: string]: string;
    }): string;
}