如何在swift，Xcode中以编程方式设置UIPageViewController的过渡样式？

let pageViewController = UIPageViewController(transitionStyle: .scroll, navigationOrientation: .horizontal, options: nil)
self.addChild(pageViewController)
self.view.addSubview(pageViewController.view)
pageViewController.didMove(toParent: self)

extension YourViewController: UIPageViewControllerDataSource {
    func pageViewController(_ pageViewController: UIPageViewController, viewControllerBefore viewController: UIViewController) -> UIViewController? {
        // 返回前一个页面的视图控制器
    }
    
    func pageViewController(_ pageViewController: UIPageViewController, viewControllerAfter viewController: UIViewController) -> UIViewController? {
        // 返回后一个页面的视图控制器
    }
}

extension YourViewController: UIPageViewControllerDelegate {
    func pageViewController(_ pageViewController: UIPageViewController, willTransitionTo pendingViewControllers: [UIViewController]) {
        // 在页面切换开始之前调用，可以在此处设置过渡样式
    }
    
    func pageViewController(_ pageViewController: UIPageViewController, didFinishAnimating finished: Bool, previousViewControllers: [UIViewController], transitionCompleted completed: Bool) {
        // 在页面切换完成后调用，可以在此处执行一些操作
    }
}

pageViewController.dataSource = self
pageViewController.delegate = self