src/vs/workbench/contrib/notebook/browser/notebookEditor.ts/NotebookEditor/getActionViewItem
class NotebookEditor:	override getActionViewItem(action: IAction): IActionViewItem | undefined {
		if (action.id === SELECT_KERNEL_ID) {
			// this is being disposed by the consumer
			return this._instantiationService.createInstance(NotebooKernelActionViewItem, action, this);
		}
		return undefined;
	}