/**
* @file App Components
*/
-import { isNullOrUndefined } from 'util';
import { Component, HostListener, Injector } from '@angular/core';
import { NgbModal } from '@ng-bootstrap/ng-bootstrap';
import { DEFAULT_INTERRUPTSOURCES, Idle } from '@ng-idle/core';
import { AuthenticationService } from 'AuthenticationService';
import { DeviceCheckService } from 'DeviceCheckService';
-import { SharedService } from 'SharedService';
+import { SharedService, isNullOrUndefined } from 'SharedService';
/**
* Creating component