using System.Xml;
using System.Xml.Schema;
using System.Xml.Serialization;

class Program {
  static void Main(string[] args) {
    XmlSerializer serializer = new XmlSerializer(typeof(Simple));
  }
}

public class Simple : IXmlSerializable {
  #region IXmlSerializable Members
  public XmlSchema GetSchema() { return null; }
  public void ReadXml(XmlReader reader) { }
  public void WriteXml(XmlWriter writer) { }
  #endregion
}