src/vs/platform/native/electron-main/nativeHostMainService.ts/NativeHostMainService/openWindow
class NativeHostMainService:	openWindow(windowId: number | undefined, arg1?: IOpenEmptyWindowOptions | IWindowOpenable[], arg2?: IOpenWindowOptions): Promise<void> {
		if (Array.isArray(arg1)) {
			return this.doOpenWindow(windowId, arg1, arg2);
		}

		return this.doOpenEmptyWindow(windowId, arg1);
	}