code: def sub_request(self, method, request, uri, headers):
          
          logger.debug('StackInABoxService ({0}:{1}): Sub-Request Received '
                       '{2} - {3}'
                       .format(self.__id, self.name, method, uri))
          return self.request(method, request, uri, headers)
docs: Handle the supplied sub-service request on the specified routing URI.
  
          :param method: string - HTTP Verb
          :param request: request object describing the HTTP request
          :param uri: URI of the reuqest
          :param headers: case-insensitive headers dict
  
          :returns: tuple - (int, dict, string) containing:
                            int - the http response status code
                            dict - the headers for the http response
                            string - http string response