src/vs/workbench/contrib/notebook/browser/viewParts/notebookEditorToolbar.ts/NotebookEditorToolbar/dispose
class NotebookEditorToolbar:	override dispose() {
		this._notebookLeftToolbar.context = undefined;
		this._notebookRightToolbar.context = undefined;
		this._notebookLeftToolbar.dispose();
		this._notebookRightToolbar.dispose();
		this._notebookLeftToolbar = null!;
		this._notebookRightToolbar = null!;

		super.dispose();
	}