public interface IImmutableSet<TValue> : IEnumerable<TValue>, 
	IEnumerable
where TValue : Object, IComparable<TValue>

Public Interface IImmutableSet(Of TValue As {Object, IComparable(Of TValue)})
	Inherits IEnumerable(Of TValue), IEnumerable

generic<typename TValue>
where TValue : Object, IComparable<TValue>
public interface class IImmutableSet : IEnumerable<TValue>, 
	IEnumerable

type IImmutableSet<'TValue when 'TValue : Object and IComparable<'TValue>> =  
    interface
        interface IEnumerable<'TValue>
        interface IEnumerable
    end