import { ValidationResult } from './ValidationResult';
import { Context } from 'koa';
/**
 * Fail authentication, with optional `challenge` and `status`, defaulting
 * to 401.
 *
 * Strategies should return this action to fail an authentication attempt.
 *
 * @param {String} challenge
 * @param {Number} status
 * @api public
 */
export declare class FailResult extends ValidationResult {
    private challenge;
    private status;
    constructor(challenge: string | string[], status: number);
    action(ctx: Context): void;
    static ρAnn(): any;
}