def to_xml_change
      doc = Nokogiri::XML::Document.new
      root = doc.create_element("#{identifier.tag_name.gsub(/Id$/, '')}Change")
      root << identifier.to_xml
      root << to_xml_updates
      root
    end
def to_xml_change
      doc = Nokogiri::XML::Document.new
      root = doc.create_element("#{identifier.tag_name.gsub(/Id$/, '')}Change")
      root << identifier.to_xml
      root << to_xml_updates
      root
    end
Builds XML Item/Folder change for update operations.