export declare class PwaAppService {
    deferredPrompt: any;
    refreshing: boolean;
    private getPWADisplayMode;
    private invokeServiceWorkerUpdateFlow;
    private registerServiceWorker;
    private showInstallPromotion;
    private hideInstallPromotion;
    private jwtDecode;
    private isJwtExpired;
    enablePwaApp(): Promise<void>;
}