     func contentViewController(viewController: PagingContentViewController, willFinishPagingAt index: Int, animated: Bool)
     
     /// Tells the delegate when the view controller was finished to paging the content.
+    /// If it is the same page as the current, this delegate is not called.
     ///
     /// - Parameters:
     ///   - viewController: The view controller object in which the scrolling occurred.

            }
            
            completion?(finished)
            if isScrollingToAnotherPage {
                _self.delegate?.contentViewController(viewController: _self, didFinishPagingAt: _self.leftSidePageIndex, animated: animated)
            }

    func contentViewController(viewController: PagingContentViewController, willBeginPagingAt index: Int, animated: Bool)
    
    /// Tells the delegate when the view controller is trying to finish paging the content.
    /// If it is the same page as the current, this delegate is not called.
    ///
    /// - Parameters:
    ///   - viewController: The view controller object in which the scrolling occurred.
