import { PopupParams } from '@telegram-apps/bridge';
import { OpenOptions } from './types.js';
/**
 * Prepares popup parameters before sending them to native app.
 * @param params - popup parameters.
 * @throws {InvalidArgumentsError} Invalid title
 * @throws {InvalidArgumentsError} Invalid message
 * @throws {InvalidArgumentsError} Invalid buttons count
 * @throws {InvalidArgumentsError} Invalid button id length
 * @throws {InvalidArgumentsError} Invalid button text length
 */
export declare function prepareParams(params: OpenOptions): PopupParams;