public sealed class ImmutableAvlTree<TKey, TValue> : ImmutableAvlTreeBase<TKey, TValue>
where TKey : Object, IComparable<TKey>

Public NotInheritable Class ImmutableAvlTree(Of TKey As {Object, IComparable(Of TKey)}, TValue)
	Inherits ImmutableAvlTreeBase(Of TKey, TValue)

generic<typename TKey, typename TValue>
where TKey : Object, IComparable<TKey>
public ref class ImmutableAvlTree sealed : public ImmutableAvlTreeBase<TKey, TValue>

[<SealedAttribute>]
type ImmutableAvlTree<'TKey, 'TValue when 'TKey : Object and IComparable<'TKey>> =  
    class
        inherit ImmutableAvlTreeBase<'TKey, 'TValue>
    end