/// <inheritdoc />
 public void Add(Uri uriPrefix, string authType, INetworkCredential cred)
 {
     _cache.Add(uriPrefix, authType, cred.ToImplementation());
 }
 /// <inheritdoc />
 public void Add(string host, int port, string authenticationType, INetworkCredential credential)
 {
     _cache.Add(host, port, authenticationType, credential.ToImplementation());
 }