src/vs/workbench/contrib/notebook/browser/viewParts/notebookEditorToolbar.ts/FixedLabellessStrategy/constructor
class FixedLabellessStrategy:	constructor(
		notebookEditor: INotebookEditorDelegate,
		editorToolbar: NotebookEditorToolbar,
		instantiationService: IInstantiationService) {
		super(notebookEditor, editorToolbar, instantiationService);
	}