# `@jupyterlite/application` ## Variables ### `ISingleWidgetShell` > > `Const` **`ISingleWidgetShell`**: `Token`<[`ISingleWidgetShell`](jupyterlite_application.md#isinglewidgetshell)\> The single widget application shell token. #### Defined in [packages/application/src/singleWidgetShell.ts:19](https://github.com/jupyterlite/jupyterlite/blob/6de9813/packages/application/src/singleWidgetShell.ts#L19) [packages/application/src/singleWidgetShell.ts:26](https://github.com/jupyterlite/jupyterlite/blob/6de9813/packages/application/src/singleWidgetShell.ts#L26)