Can these techniques be used to extend Xaml parsing in Xamarin.Forms?

This is an article about adding support in WPF for populating generics (Dictionary<>, List<>, etc.) objects in Xaml via MarkupExtensions.

[http://blogs.msdn.com/b/mikehillberg/archive/2006/10/06/limitedgenericssupportinxaml.aspx] (Limited generics support in Xaml)

Is it possible to do these kind of things with the XAML Parser in Xamarin.Forms? I see things like IMarkupExtension, IXamlTypeResolver and other things in the Xamarin.Forms.Core package's Xamarin.Forms.Xaml namespace, but documentation is scarce (or nonexistent in the case of IXamlTypeResolver).