import { BaseMiddleware, MiddlewareContext, NextFunction } from './types';
/**
 * Middleware для добавления кнопки назад в inline клавиатуру
 */
export declare class BackButtonMiddleware extends BaseMiddleware {
    private logger;
    priority: number;
    static ALLOWED_METHODS: string[];
    private setDefaultBackButton;
    before({ params, method, state }: MiddlewareContext, next: NextFunction): Promise<void>;
}