interface JwtPayload {
    exp?: number;
}
/**
 * @param token either a regular JWT or JWE (encrypted)
 */
export declare function decodeJwtHeader(token: string): JwtPayload;
/**
 * Note: only works if payload is not encrypted
 * @param token a regular JWT (not JWE)
 */
export declare function decodeJwtPayload(token: string): JwtPayload;
export {};