export type PWAStatus = {
    online: boolean;
    hasUpdate: boolean;
    swInstalled: boolean;
    update: () => void;
};
/**
 * usePWAStatus — hook for tracking the status of PWA/Service Worker.
 * Returns the online/offline status, the presence of an update, whether the SW is installed, and a function to update.
 *
 * @example
 * const { online, hasUpdate, swInstalled, update } = usePWAStatus();
 * if (!online) return <div>You are offline</div>;
 * if (hasUpdate) return <button onClick={update}>Update application</button>;
 */
export declare function usePWAStatus(): PWAStatus;