void System.Xml.Serialization.IXmlSerializable.WriteXml(System.Xml.XmlWriter writer)
        {
            ExtractXmlSerializer serializer = new ExtractXmlSerializer();

            serializer.WriteXml(writer, this);
        }
        void System.Xml.Serialization.IXmlSerializable.ReadXml(System.Xml.XmlReader reader)
        {
            ExtractXmlSerializer serializer = new ExtractXmlSerializer();

            serializer.ReadXml(reader, this);
        }