code: def _update_record(self, identifier, rtype=None, name=None, content=None):
          
          records = self._raw_records(identifier, rtype, name, content)
          self._update_records(records, {
              'type': rtype,
              'hostname': self._relative_name(name),
              'destination': content,
              'priority': self._get_lexicon_option('priority'),
          })
          LOGGER.debug('update_record: %s', True)
          return True
docs: Create or update a record.