namespace System.Collections
{
    [ComVisible(true)]
    [DebuggerDisplay("Count = {Count}")]
    [DebuggerTypeProxy(typeof(SortedListDebugView))]
    [DefaultMember("Item")]
    public class SortedList : ICollection, IDictionary, IEnumerable, ICloneable
    {
        public virtual IList GetKeyList();
    }
}