Public Interface ISet(Of T) _
    Inherits ICollection(Of T), IEnumerable(Of T), IEnumerable

Dim instance As ISet(Of T)

public interface ISet<T> : ICollection<T>, 
    IEnumerable<T>, IEnumerable

generic<typename T>
public interface class ISet : ICollection<T>, 
    IEnumerable<T>, IEnumerable

type ISet<'T> =  
    interface
        interface ICollection<'T>
        interface IEnumerable<'T>
        interface IEnumerable
    end