/// <summary>
 /// Retrieve the target list wrapped in <paramref name="proxies"/>.
 /// </summary>
 /// <typeparam name="T">
 /// Type of the list elements.
 /// </typeparam>
 /// <param name="proxies">
 /// An proxy list returned by <see cref="GetProxy{T}(IList{T})"/>.
 /// </param>
 /// <returns>
 /// The target list instance wrapped by <paramref name="proxies"/>,
 /// or <paramref name="proxies"/> itself if it is actually not a proxy.
 /// </returns>
 public static IList <T> GetTarget <T>(IList <T> proxies)
     where T : class
 {
     return(ListProxy <T> .GetTarget(proxies));
 }