import { type AuthorizeResponse } from '../types/auth';
import { type PopupSDK, type PopupOptions } from '../types/authentication';
/**
 * Authentication using a popup window.
 * Should be called inside a click handler to avoid being blocked by the browser.
 */
export default class Popup {
    options: PopupOptions;
    private sdk;
    constructor(sdk: PopupSDK, options: PopupOptions);
    authorize(): Promise<AuthorizeResponse | null>;
}