C# - What Is A IRepository And What Is It Used For

For(typeof(IRepository<>)) Translate In C# To Vb?

I've got a method I'm trying to translate from c# to vb, goes something like this .. x.For(typeof(IRepository<>)).Use(typeof(Repository<>)); VB doesn't seem to like the idea of a IRepository(Of ) ... what's the syntax on that?