[C#] Xml Serializacija Attribut pred Namespace

[Serializable]
[XmlRoot(ElementName = "COLLADA", IsNullable = false)]    
public class DaeModel
{
	private const string DefaultNamespace = @"http://www.collada.org/2005/11/COLLADASchema";

	private string _version = "1.4.1";

	[XmlAttributeAttribute(AttributeName = "version", Namespace = DefaultNamespace)]
	public string Version
	{
		get { return _version; }
		set { _version = value; }
	}

<COLLADA xmlns="http://www.collada.org/2005/11/COLLADASchema" version="1.4.1">

<COLLADA version="1.4.1" xmlns="http://www.collada.org/2005/11/COLLADASchema">

public void Save(string fileName)
{
	XmlWriterSettings settings = new XmlWriterSettings();
	settings.Indent = true;
	settings.Encoding = Encoding.UTF8;
	settings.OmitXmlDeclaration = false;

	XmlSerializerNamespaces namespaces = new XmlSerializerNamespaces();
	namespaces.Add(string.Empty, DefaultNamespace);

	XmlWriter writer = XmlWriter.Create(Console.Out, settings);
	XmlSerializer serializer = new XmlSerializer(GetType(), DefaultNamespace);
	serializer.Serialize(writer, this, namespaces);
}