/**
* get single Variables instance from a DOMElement
*
* @param DOMElement $node
* @return Variables
*/
public static function fromDOMElement(DOMElement $node)
{
$o = new Variables();
$o->assignByHash(self::domNodeToHash($node, self::$FIELD_NAMES, self::$DEFAULT_VALUES, self::$FIELD_TYPES));
$o->notifyPristine();
return $o;
}