declare class MaintenanceService {
    static instance: MaintenanceService;
    readonly message: string;
    private readonly logger;
    private readonly lockfile;
    private readonly tasks;
    constructor();
    enable(task?: string): Promise<void>;
    disable(task?: string): Promise<void>;
    isEnabled(): Promise<boolean>;
    throwException(): void;
    private prepareMessage;
    private prepareLockfile;
}

export { MaintenanceService };