import type TelegramBot from 'node-telegram-bot-api';
import { type Question } from './questions';
import { Context, OnFinishFn } from './state';
import { type Options } from './config';
interface Dialog {
    /** Start dialog session with user
     * @param chatId ID of chat with target user
     * @param callback The callback which will be called when dialog session will be completed
     * @returns Promise which will be resolved as an object with named user's answers
    */
    start(chatId: TelegramBot.ChatId, callback?: OnFinishFn, options?: Options): Promise<Context>;
    /** Break dialog session for user
     * @param chatId ID of chat of connected user
     * @param message Optional message which will be shown in a chat
     */
    break(chatId: TelegramBot.ChatId, message?: string): Promise<void>;
}
/** Class to make dialogs in Telegram bots*/
export declare class Dialogs {
    private bot;
    private state;
    private config;
    constructor(bot: TelegramBot, options?: Options);
    /** Create dialog
     * @param questions A list of questions
     */
    create(questions: Question[], options?: Options): Dialog;
    /** Subscribe on messages to bot */
    private messageHandler;
    /** Subscribe on callbacks */
    private callbackHandler;
    /** handle user's answer */
    private handleAnswer;
    /** handle callback */
    private handleCallback;
    /** pick next question and send it */
    private pickNextQuestion;
    /** Resend question once again */
    private resendQuestion;
    /** Send current question to user */
    private sendQuestion;
}
export {};