docs: def _xpathDict(xml, xpath, cls, parent, **kwargs):
      """ Returns a default Dict given certain information
  
      :param xml: An xml tree
      :type xml: etree
      :param xpath: XPath to find children
      :type xpath: str
      :param cls: Class identifying children
      :type cls: inventory.Resource
      :param parent: Parent of object
      :type parent: CtsCollection
      :rtype: collections.defaultdict.<basestring, inventory.Resource>
      :returns: Dictionary of children
      """
      children = []
      for child in xml.xpath(xpath, namespaces=XPATH_NAMESPACES):
          children.append(cls.parse(
              resource=child,
              parent=parent,
              **kwargs
          ))
      return children