public class ImmutableTreeSet<TValue> : ImmutableAvlTreeBase<TValue, TValue>, 
	IImmutableSet<TValue>, IEnumerable<TValue>, IEnumerable
where TValue : Object, IComparable<TValue>

Public Class ImmutableTreeSet(Of TValue As {Object, IComparable(Of TValue)})
	Inherits ImmutableAvlTreeBase(Of TValue, TValue)
	Implements IImmutableSet(Of TValue), IEnumerable(Of TValue), 
	IEnumerable

generic<typename TValue>
where TValue : Object, IComparable<TValue>
public ref class ImmutableTreeSet : public ImmutableAvlTreeBase<TValue, TValue>, 
	IImmutableSet<TValue>, IEnumerable<TValue>, IEnumerable

type ImmutableTreeSet<'TValue when 'TValue : Object and IComparable<'TValue>> =  
    class
        inherit ImmutableAvlTreeBase<'TValue, 'TValue>
        interface IImmutableSet<'TValue>
        interface IEnumerable<'TValue>
        interface IEnumerable
    end