/**
 * Module to open a dialog that sends results to the bot framework
 *
 * @module
 */
import { BotUrlDialogInfo } from '../../interfaces';
import { DialogSubmitHandler, PostMessageChannel } from '../dialog';
/**
 * Allows an app to open a dialog that sends submitted data to a bot.
 *
 * @param botUrlDialogInfo - An object containing the parameters of the dialog module including completionBotId.
 * @param submitHandler - Handler that triggers when the dialog has been submitted or closed.
 * @param messageFromChildHandler - Handler that triggers if dialog sends a message to the app.
 *
 * @returns a function that can be used to send messages to the dialog.
 */
export declare function open(botUrlDialogInfo: BotUrlDialogInfo, submitHandler?: DialogSubmitHandler, messageFromChildHandler?: PostMessageChannel): void;
/**
 * Checks if dialog.url.bot capability is supported by the host
 *
 * @returns boolean to represent whether dialog.url.bot is supported
 *
 * @throws Error if {@linkcode app.initialize} has not successfully completed
 */
export declare function isSupported(): boolean;