import { type AuthSession, type PopupOptions } from './types.ts';
interface OpenPopupParams {
    url: string;
    /** Origin whose `postMessage`s are trusted. */
    trustedOrigin: string;
    popup?: PopupOptions;
}
/**
 * Open the sign-in popup and resolve with the session the server posts back.
 * Rejects with a `SignInError` when blocked, cancelled, or on a server error.
 */
export declare function openSignInPopup({ url, trustedOrigin, popup }: OpenPopupParams): Promise<AuthSession>;
export {};
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