     private var isShown: Bool = false
 
     init() {
-        // let options: [String: Any] = [ UIPageViewControllerOptionInterPageSpacingKey: CGFloat(8) ]
         super.init(transitionStyle: .scroll, navigationOrientation: .horizontal, options: nil)
 
         dataSource = self

        return controller
    }

    public func pageViewController(
        _ pageViewController: UIPageViewController,
        viewControllerAfter viewController: UIViewController
    ) -> UIViewController? {


    // MARK: - Delegate

    open func pageViewController(
        _ pageViewController: UIPageViewController,
        didFinishAnimating finished: Bool,
        previousViewControllers: [UIViewController],
