type Default = class(OpenXmlElement)
public
	function Create();overload;
	function Create(_node);overload;
	function Create(_parent, _prefix, _local_name);overload;
	function Init();override;
	function InitAttributes();override;
	function InitChildren();override;
	function InitNode(_node);override;
	function Copy(_obj);override;

	property Extension read ReadXmlAttrExtension write WriteXmlAttrExtension;
	property ContentType read ReadXmlAttrContentType write WriteXmlAttrContentType;
	function ReadXmlAttrExtension();
	function WriteXmlAttrExtension(_value);
	function ReadXmlAttrContentType();
	function WriteXmlAttrContentType(_value);

public
	//  Attributes
	XmlAttrExtension;
	XmlAttrContentType;

	// Children

end;

function Default.Create();overload;
begin
	self.Create(nil, nil, "Default");
end;

function Default.Create(_node);overload;
begin
	class(OpenXmlElement).Create(_node);
end;

function Default.Create(_parent, _prefix, _local_name);overload;
begin
	class(OpenXmlElement).Create(_parent, _prefix, _local_name);
end;

function Default.Init();override;
begin
	self.XmlAttrExtension := new OpenXmlAttribute(nil, "Extension", nil);
	self.XmlAttrContentType := new OpenXmlAttribute(nil, "ContentType", nil);
end;

function Default.InitAttributes();override;
begin
	attributes_ := array(
		self.XmlAttrExtension,
		self.XmlAttrContentType,
	);
end;

function Default.InitChildren();override;
begin
	child_elements_ := array(
	);
	sorted_child_ := array(
		"": -1,
	);
end;

function Default.InitNode(_node);override;
begin
	if ifObj(self.XmlNode) then
		for k,v in child_elements_ do v.InitNode(nil);
	self.XmlNode := ifObj(_node) ? _node : nil;
end;

function Default.Copy(_obj);override;
begin
	if not ifnil(_obj.XmlAttrExtension.Value) then
		self.XmlAttrExtension.Value := _obj.XmlAttrExtension.Value;
	if not ifnil(_obj.XmlAttrContentType.Value) then
		self.XmlAttrContentType.Value := _obj.XmlAttrContentType.Value;
end;

function Default.ReadXmlAttrExtension();
begin
	return self.XmlAttrExtension.Value;
end;

function Default.WriteXmlAttrExtension(_value);
begin
	self.XmlAttrExtension.Value := _value;
end;

function Default.ReadXmlAttrContentType();
begin
	return self.XmlAttrContentType.Value;
end;

function Default.WriteXmlAttrContentType(_value);
begin
	self.XmlAttrContentType.Value := _value;
end;