FileEntityCollectionTItem, TCollection - класс

public abstract class FileEntityCollection<TItem, TCollection> : ObservableCollectionLookup<Guid, TItem, TCollection>, 
	IFileEntityCollection<TItem, TCollection>, IObservableCollectionLookup<Guid, TItem, TCollection>, 
	IObservableCollection<TItem, TCollection>, IList<TItem>, ICollection<TItem>, 
	IEnumerable<TItem>, IEnumerable, INotifyCollectionChanged, INotifyPropertyChanged, ICloneable, 
	ILookupContainer<Guid, TItem>, IControllableCollection<TItem>
where TItem : class, IFileEntity
where TCollection : class, Object, IFileEntityCollection<TItem, TCollection>

Public MustInherit Class FileEntityCollection(Of TItem As {Class, IFileEntity}, TCollection As {Class, Object, IFileEntityCollection(Of TItem, TCollection)})
	Inherits ObservableCollectionLookup(Of Guid, TItem, TCollection)
	Implements IFileEntityCollection(Of TItem, TCollection), IObservableCollectionLookup(Of Guid, TItem, TCollection), 
	IObservableCollection(Of TItem, TCollection), IList(Of TItem), 
	ICollection(Of TItem), IEnumerable(Of TItem), IEnumerable, 
	INotifyCollectionChanged, INotifyPropertyChanged, ICloneable, ILookupContainer(Of Guid, TItem), 
	IControllableCollection(Of TItem)

generic<typename TItem, typename TCollection>
where TItem : ref class, IFileEntity
where TCollection : ref class, Object, IFileEntityCollection<TItem, TCollection>
public ref class FileEntityCollection abstract : public ObservableCollectionLookup<Guid, TItem, TCollection>, 
	IFileEntityCollection<TItem, TCollection>, IObservableCollectionLookup<Guid, TItem, TCollection>, 
	IObservableCollection<TItem, TCollection>, IList<TItem>, ICollection<TItem>, 
	IEnumerable<TItem>, IEnumerable, INotifyCollectionChanged, INotifyPropertyChanged, ICloneable, 
	ILookupContainer<Guid, TItem>, IControllableCollection<TItem>

[<AbstractClassAttribute>]
type FileEntityCollection<'TItem, 'TCollection when 'TItem : not struct and IFileEntity when 'TCollection : not struct and Object and IFileEntityCollection<'TItem, 'TCollection>> =  
    class
        inherit ObservableCollectionLookup<Guid, 'TItem, 'TCollection>
        interface IFileEntityCollection<'TItem, 'TCollection>
        interface IObservableCollectionLookup<Guid, 'TItem, 'TCollection>
        interface IObservableCollection<'TItem, 'TCollection>
        interface IList<'TItem>
        interface ICollection<'TItem>
        interface IEnumerable<'TItem>
        interface IEnumerable
        interface INotifyCollectionChanged
        interface INotifyPropertyChanged
        interface ICloneable
        interface ILookupContainer<Guid, 'TItem>
        interface IControllableCollection<'TItem>
    end