code: def nodeToXML(nodeObject):
      
  
      xmlRoot = etree.Element(NODE + "node", nsmap=NODE_NSMAP)
      nameNode = etree.SubElement(xmlRoot, NODE + "name")
      nameNode.text = nodeObject.node_name
      urlNode = etree.SubElement(xmlRoot, NODE + "url")
      urlNode.text = nodeObject.node_url
      pathNode = etree.SubElement(xmlRoot, NODE + "path")
      pathNode.text = nodeObject.node_path
      capNode = etree.SubElement(xmlRoot, NODE + "capacity")
      capNode.text = str(nodeObject.node_capacity)
      sizeNode = etree.SubElement(xmlRoot, NODE + "size")
      sizeNode.text = str(nodeObject.node_size)
      if nodeObject.last_checked:
          checkedNode = etree.SubElement(xmlRoot, NODE + "lastChecked")
          checkedNode.text = nodeObject.last_checked.strftime(TIME_FORMAT_STRING)
      return xmlRoot
docs: Take a Django node object from our CODA store and make an XML
      representation