src/vs/workbench/contrib/notebook/browser/services/notebookServiceImpl.ts/NotebookOutputRendererInfoStore/constructor
class NotebookOutputRendererInfoStore:	constructor(
		@IStorageService storageService: IStorageService,
	) {
		this.preferredMimetypeMemento = new Memento('workbench.editor.notebook.preferredRenderer2', storageService);
	}