How to use the @covalent/core.LoadingMode.Indeterminate function in @covalent/core

constructor(
    private printer: services.PrinterService,
    private loadingService: TdLoadingService
  ) {
    this.loadingService.create({
      name: 'app',
      type: LoadingType.Circular,
      mode: LoadingMode.Indeterminate
      // color: 'accent',
    });
  }
}

constructor(public dialogRef: MdDialogRef,
              private _loadingService: TdLoadingService,
              private _distributorService: DistributorService,
              private _shopService: RetailShopsService,
              private _brandService: BrandsService) {
    this._loadingService.create({
      name: 'brand-form',
      type: LoadingType.Circular,
      mode: LoadingMode.Indeterminate,
      color: 'warn',
    }); }

constructor(private _router: Router,
              private _loadingService: TdLoadingService,
              private _userService: UsersService,
              private _authService: AuthService) {
    this._loadingService.create({
      name: 'login',
      type: LoadingType.Circular,
      mode: LoadingMode.Indeterminate,
      color: 'warn',
    });
  }

constructor(public dialogRef: MdDialogRef,
              private _loadingService: TdLoadingService,
              private _shopService: RetailShopsService,
              private _saltService: SaltsService) {
    this._loadingService.create({
      name: 'salt-form',
      type: LoadingType.Circular,
      mode: LoadingMode.Indeterminate,
      color: 'warn',
    }); }

constructor(private _shopService: RetailShopsService,
              private _dialogService: TdDialogService,
              private _indexDB: IndexDBServiceService,
              private _loadingService: TdLoadingService,
              private _snackBarService: MdSnackBar,
              private _printerService: PrinterConfigService,
              private _viewContainerRef: ViewContainerRef) {
    this._loadingService.create({
      name: 'printConfig',
      type: LoadingType.Circular,
      mode: LoadingMode.Indeterminate,
      color: 'warn',
    });
  }

constructor(private _titleService: Title,
              private _loadingService: TdLoadingService,
              private _customerService: CustomerService,
              private _shopService: RetailShopsService,
              private _dialogService: TdDialogService) {
    this._loadingService.create({
      name: 'customer',
      type: LoadingType.Circular,
      mode: LoadingMode.Indeterminate,
      color: 'warn',
    });
  }

constructor(
    private _titleService: Title,
    private _loadingService: TdLoadingService,
    private _brandService: BrandsService,
    private _userService: UsersService) {
    this._loadingService.create({
      name: 'products',
      type: LoadingType.Circular,
      mode: LoadingMode.Indeterminate,
      color: 'warn',
    });
  }

constructor(
    private _titleService: Title,
    private _loadingService: TdLoadingService,
    private _tagService: TagsService,
    private _userService: UsersService) {
    this._loadingService.create({
      name: 'products',
      type: LoadingType.Circular,
      mode: LoadingMode.Indeterminate,
      color: 'warn',
    });
  }

constructor(
    private _titleService: Title,
    private _loadingService: TdLoadingService,
    private _distributorService: DistributorService,
    private _userService: UsersService) {
    this._loadingService.create({
      name: 'products',
      type: LoadingType.Circular,
      mode: LoadingMode.Indeterminate,
      color: 'warn',
    });
  }

constructor(public dialogRef: MdDialogRef,
              private _userService: UsersService,
              private _roleService: RolesService,
              private _loadingService: TdLoadingService,) {
    this._loadingService.create({
      name: 'orders',
      type: LoadingType.Circular,
      mode: LoadingMode.Indeterminate,
      color: 'warn',
    });
  }