IViewModelCollectionT - интерфейс

public interface IViewModelCollection<out T> : IViewModel, 
	INotifyPropertyChanged, IEnumerable<T>, IEnumerable, INotifyCollectionChanged
where T : class, IViewModel

Public Interface IViewModelCollection(Of Out T As {Class, IViewModel})
	Inherits IViewModel, INotifyPropertyChanged, IEnumerable(Of T), 
	IEnumerable, INotifyCollectionChanged

generic<typename T>
where T : ref class, IViewModel
public interface class IViewModelCollection : IViewModel, 
	INotifyPropertyChanged, IEnumerable<T>, IEnumerable, INotifyCollectionChanged

type IViewModelCollection<'T when 'T : not struct and IViewModel> =  
    interface
        interface IViewModel
        interface INotifyPropertyChanged
        interface IEnumerable<'T>
        interface IEnumerable
        interface INotifyCollectionChanged
    end