code: def _match_getters(self, query, getters=None):
          
          if getters is None:
              getters = self._getters
  
          if query in getters:
              name, response = getters[query]
              logger.debug('Found response in getter of %s' % name)
              response = response.format(self._properties[name].get_value())
              return response.encode('utf-8')
docs: Tries to match in getters
  
          :param query: message tuple
          :type query: Tuple[bytes]
          :return: response if found or None
          :rtype: Tuple[bytes] | None