src/vs/workbench/api/browser/mainThreadTreeViews.ts/MainThreadTreeViews/constructor
class MainThreadTreeViews:	constructor(
		extHostContext: IExtHostContext,
		@IViewsService private readonly viewsService: IViewsService,
		@INotificationService private readonly notificationService: INotificationService,
		@IExtensionService private readonly extensionService: IExtensionService,
		@ILogService private readonly logService: ILogService
	) {
		super();
		this._proxy = extHostContext.getProxy(ExtHostContext.ExtHostTreeViews);
	}