import { Observable } from 'rxjs/Observable';
import { SessionService } from './session.service';
export declare function secondsToString(seconds: number): string;
/**
  @brief Determine if the application is left idling and react on it

*/
export declare class IdleService {
    private _sessionService;
    static idleSecondsCounter: number;
    private static _justEmitted;
    MINIMUM_IDLETIME: number;
    private _logoutAfter;
    idleTime$: Observable<number>;
    private _idleTimeObserver;
    constructor(_sessionService: SessionService);
    private _checkIdleTime();
}