namespace System.Collections
{
    [DefaultMember("Item")]
    public class Hashtable : ICollection, IDictionary, IEnumerable, ICloneable, IDeserializationCallback, ISerializable
    {
        [Obsolete("Hashtable.comparer has been deprecated. Use the KeyComparer properties instead.")]
        protected IComparer? comparer { get; set; }
    }
}