/**
 * Open AppFlowy.
 *
 * @returns AppFlowy open URL.
 * @example
 * open()
 * // => 'appflowy-flutter://'
 * @link https://github.com/AppFlowy-IO/AppFlowy/blob/main/frontend/appflowy_flutter/lib/startup/tasks/deeplink/open_app_deeplink_handler.dart
 */
export declare function open(): string;