import { RequestOptionsFactory } from '@wix/sdk-types';
/**
 * Retrieves data about the instance of your app that's installed on a Wix
 * site and data about the site itself. For example, to check whether the Wix user has installed a free or paid version of your app,
 * or to check which apps made by Wix are installed on the site.
 *
 * You must authenticate this method as a Wix app ([REST](https://dev.wix.com/docs/rest/articles/getting-started/about-identities#wix-app) | [SDK](https://dev.wix.com/docs/build-apps/develop-your-app/access/about-identities#wix-apps)).
 *
 * To retrieve `site.ownerInfo` in the response, you must
 * have the __READ SITE OWNER EMAIL__ permission scope in addition to
 * __MANAGE YOUR APP__.
 */
export declare function getAppInstance(payload: object): RequestOptionsFactory<any>;