IPropertyBuilderTModel, TViewModel - интерфейс

public interface IPropertyBuilder<TModel, TViewModel>
where TModel : class
where TViewModel : Object, IPropertyContainer<TModel>

Public Interface IPropertyBuilder(Of TModel As Class, TViewModel As {Object, IPropertyContainer(Of TModel)})

generic<typename TModel, typename TViewModel>
where TModel : ref class
where TViewModel : Object, IPropertyContainer<TModel>
public interface class IPropertyBuilder

type IPropertyBuilder<'TModel, 'TViewModel when 'TModel : not struct when 'TViewModel : Object and IPropertyContainer<'TModel>> =  interface end