How to use the ngx-tour-ngx-bootstrap.TourNgxBootstrapModule.forRoot function in ngx-tour-ngx-bootstrap

RestangularModule.forRoot([ConfigService], restangularProviderConfigurer),
    TabsModule.forRoot(),
    TooltipModule.forRoot(),
    ModalModule.forRoot(),
    BsDropdownModule.forRoot(),
    CollapseModule.forRoot(),
    AlertModule.forRoot(),
    PopoverModule.forRoot(),
    TypeaheadModule.forRoot(),
    TagInputModule,
    AppRoutingModule,
    StoreModule,
    SyndesisCommonModule.forRoot(),
    DataMapperModule,
    NotificationModule,
    TourNgxBootstrapModule.forRoot()
  ],
  providers: [
    {
      provide: APP_INITIALIZER,
      useFactory: appInitializer,
      deps: [ConfigService],
      multi: true
    },
    {
      provide: RESTANGULAR_MAPPER,
      useFactory: mapperRestangularProvider,
      deps: [Restangular, ConfigService]
    },
    ConfigService,
    UserService,
    CanDeactivateGuard

beforeEach(() => {
    const configServiceStub = {
      getSettings: (...params) => APP_NAME
    };

    TestBed.configureTestingModule({
      imports: [
        RestangularModule,
        StoreModule,
        SyndesisCommonModule.forRoot(),
        ModalModule.forRoot(),
        RouterTestingModule.withRoutes([]),
        CollapseModule.forRoot(),
        BsDropdownModule.forRoot(),
        NotificationModule,
        TourNgxBootstrapModule.forRoot()
      ],
      providers: [
        ConfigService,
        UserService,
        TestSupportService,
        NavigationService,
        MockBackend,
        { provide: RequestOptions, useClass: BaseRequestOptions },
        {
          provide: Http,
          useFactory: (backend, options) => {
            return new Http(backend, options);
          },
          deps: [MockBackend, RequestOptions]
        },
        { provide: ConfigService, useValue: configServiceStub }

@NgModule({
  declarations: [NgxBootstrapComponent, DocsComponent, OtherRouteComponent],
  imports: [
    CommonModule,
    RouterModule.forChild([{
      component: NgxBootstrapComponent,
      path: '',
      children: [{
        component: DocsComponent,
        path: '',
      }, {
        component: OtherRouteComponent,
        path: 'other',
      }]
    }]),
    TourNgxBootstrapModule.forRoot(),
  ],
})
export class NgxBootstrapModule { }