/**
 * @beta
 * @hidden
 * Module to delegate adaptive card action for Custom Engine Agent execution to the host
 * @internal
 * Limited to Microsoft-internal use
 * @module
 */
import { AppId } from '../public';
import * as externalAppCardActions from './externalAppCardActions';
/**
 * @beta
 * @hidden
 * Delegates an Adaptive Card Action.OpenUrl request to the host for the application with the provided app ID.
 * @internal
 * Limited to Microsoft-internal use
 * @param appId ID of the application the request is intended for. This must be a UUID
 * @param conversationId To tell the bot what conversation the calls are coming from
 * @param url The URL to open
 * @throws Error if the response has not successfully completed
 * @returns Promise that resolves to ActionOpenUrlType indicating the type of URL that was opened on success and rejects with ActionOpenUrlError if the request fails
 */
export declare function processActionOpenUrl(appId: AppId, conversationId: string, url: URL): Promise<externalAppCardActions.ActionOpenUrlType>;
/**
 * @beta
 * @hidden
 * Delegates an Adaptive Card Action.Submit request to the host for the application with the provided app ID
 * @internal
 * Limited to Microsoft-internal use
 * @param appId ID of the application the request is intended for. This must be a UUID
 * @param conversationId To tell the bot what conversation the calls are coming from
 * @param actionSubmitPayload The Adaptive Card Action.Submit payload
 * @throws Error if host notifies of an error
 * @returns Promise that resolves when the request is completed and rejects with ActionSubmitError if the request fails
 */
export declare function processActionSubmit(appId: AppId, conversationId: string, actionSubmitPayload: externalAppCardActions.IAdaptiveCardActionSubmit): Promise<void>;
/**
 * @beta
 * @hidden
 * Checks if the externalAppCardActionsForCEA capability is supported by the host
 * @returns boolean to represent whether externalAppCardActions capability is supported
 *
 * @throws Error if {@linkcode app.initialize} has not successfully completed
 *
 * @internal
 * Limited to Microsoft-internal use
 */
export declare function isSupported(): boolean;