docs: def get_aggregate(self):
          """ Get aggregate data.
  
              Returns:
                  A dict in with queries as keys and results as values.
          """
          return dict([(aggregate.find('query').text, [(ET.tostring(data).lstrip('<data xmlns:cps="www.clusterpoint.com" xmlns:cpse="www.clusterpoint.com">').strip().rstrip("</data>")) for data in aggregate.findall('data')])
                     for aggregate in self._content.findall('aggregate')])