export declare type NotificationPermissionStatus = 'denied' | 'granted' | 'default';
export interface NotificationOptions {
    dir?: 'auto' | 'ltr' | 'rtl';
    lang?: string;
    body?: string;
    tag?: string;
    icon?: string;
    data?: any;
    vibrate?: number[];
    renotify?: boolean;
    silent?: boolean;
    sound?: string;
    noscreen?: boolean;
    sticky?: boolean;
}
export interface NotificationInstance extends NotificationOptions {
    onclick: () => void;
    onerror: () => void;
    onclose: () => void;
    timestamp: string;
    close(): void;
}
export interface NotificationStatic {
    new (title: string, options?: NotificationOptions): NotificationInstance;
    permission: NotificationPermissionStatus;
    requestPermission(): Promise<NotificationPermissionStatus>;
}