How to use the @nakedobjects/services.ViewType.Home function in @nakedobjects/services

private render() {
        switch (this.lastPaneRouteData.location) {
            case ViewType.Home:
                return this.ciceroRendererService.renderHome(this.lastPaneRouteData);
            case ViewType.Object:
                return this.ciceroRendererService.renderObject(this.lastPaneRouteData);
            case ViewType.List:
                return this.ciceroRendererService.renderList(this.lastPaneRouteData);
            default:
                return this.ciceroRendererService.renderError('unknown render error');
        }
    }