import { AppBridgeBase } from '../Base';
export declare namespace global {
    interface Window {
        /**
         * @see https://developer.mozilla.org/en-US/docs/Web/API/Window/resizeTo
         *
         * Set an iframe's size. Depending on the context, the host page may decide
         * to apply or ignore the new sizes. For example, if the iframe is meant to
         * fill its parent container the host would ignore the request. Conversely,
         * if the parent container allows the iframe to fill it the host would
         * apply the new size.
         */
        resizeTo(width: number, height: number): void;
    }
    interface shopify extends AppBridgeBase {
        /**
         * The references and APIs to the UI extension that helped bootstrap the iframe.
         */
        extension: {
            /**
             * @see https://shopify.dev/docs/api/checkout-ui-extensions/unstable/configuration#how-it-works
             *
             * The unique handle name of the UI extension as defined by the developer.
             */
            handle: string;
            /**
             * @see https://developer.mozilla.org/en-US/docs/Web/API/MessagePort
             *
             * A MessagePort instance for communicating directly to and from the UI
             * Extension that created the iframe. It will need to be started to begin
             * receiving messages.
             */
            port: MessagePort;
            /**
             * Alias to window.resizeTo, available here for feature discovery by the
             * embedding app.
             */
            resizeTo?: Window['resizeTo'];
        };
        /**
         * Information about the current visitor.
         *
         * @ignore async via our RPC endpoints to ensure a secure handshake between
         * host and client is established.
         */
        visitor: () => Promise<Visitor>;
    }
}
interface Visitor {
    /**
     * The unique token of a given user across all surfaces in a shop, present
     * if a user has opted-in to tracking.
     *
     * @ignore this maps to the _shopify_y cookie which Trekkie refers to as a
     * uniqToken.
     */
    id?: string;
}
export {};