INamedObservableCollectionTItem, TCollection - интерфейс

public interface INamedObservableCollection<TItem, out TCollection> : IObservableCollection<TItem, TCollection>, 
	IList<TItem>, ICollection<TItem>, IEnumerable<TItem>, IEnumerable, 
	INotifyCollectionChanged, INotifyPropertyChanged, ICloneable
where TItem : class, INamedItem
where TCollection : class, Object, IObservableCollection<TItem, TCollection>

Public Interface INamedObservableCollection(Of TItem As {Class, INamedItem}, Out TCollection As {Class, Object, IObservableCollection(Of TItem, TCollection)})
	Inherits IObservableCollection(Of TItem, TCollection), IList(Of TItem), 
	ICollection(Of TItem), IEnumerable(Of TItem), IEnumerable, 
	INotifyCollectionChanged, INotifyPropertyChanged, ICloneable

generic<typename TItem, typename TCollection>
where TItem : ref class, INamedItem
where TCollection : ref class, Object, IObservableCollection<TItem, TCollection>
public interface class INamedObservableCollection : IObservableCollection<TItem, TCollection>, 
	IList<TItem>, ICollection<TItem>, IEnumerable<TItem>, IEnumerable, 
	INotifyCollectionChanged, INotifyPropertyChanged, ICloneable

type INamedObservableCollection<'TItem, 'TCollection when 'TItem : not struct and INamedItem when 'TCollection : not struct and Object and IObservableCollection<'TItem, 'TCollection>> =  
    interface
        interface IObservableCollection<'TItem, 'TCollection>
        interface IList<'TItem>
        interface ICollection<'TItem>
        interface IEnumerable<'TItem>
        interface IEnumerable
        interface INotifyCollectionChanged
        interface INotifyPropertyChanged
        interface ICloneable
    end