code: def query(self, query, sort=None, offset=100, page=1, aquarius_url=None):
          logger.info(f'Searching asset query: {query}')
          aquarius = self._get_aquarius(aquarius_url)
          return [DDO(dictionary=ddo_dict) for ddo_dict in
                  aquarius.query_search(query, sort, offset, page)['results']]