import { ITelegramClient } from '../../client.types.js';
import { User } from '../../types/peers/user.js';
/**
 * Authorize a bot using its token issued by [@BotFather](//t.me/BotFather)
 *
 * @param token  Bot token issued by BotFather
 * @returns  Bot's {@link User} object
 * @throws BadRequestError  In case the bot token is invalid
 */
export declare function signInBot(client: ITelegramClient, token: string): Promise<User>;