Custom renderer for a Cell on WinPhone

I tried to create a custom renderer which inherits from Xamarin.Forms.Platform.WinPhone.ImageCellRenderer. But this class does not inherit from System.Windows.FrameworkElement like Views do. It also doesn't have any property which holds the native FrameworkElement which represents the Cell on the screen.

On Android I can call GetCellCore to get a Android.Views.View. On iOS GetCell returns a UITableViewCell.

How do I get the native UIElement or FrameworkElement for a Cell on Windows Phone?