/**
 * (c) Meta Platforms, Inc. and affiliates. Confidential and proprietary.
 *
 * @format
 */
export type Token = {
    type: 'oauth';
    payload: string;
} | {
    type: 'cat';
    payload: string;
    app: string;
};
export declare function loadToken(): Promise<Token | null>;
export declare function authQueryString(token: Token): string;
export declare function getAuthUrl(): string;
export declare function storeToken(token: string): Promise<void>;
export declare function getNeedToAuthenticateMessage(): string;