def add(self, message, request):
self._debug_log.debug('<STR_LIT>')<EOL>response = Response(message, request)<EOL>self._log_entries.appendleft(response)<EOL>return response<EOL>
Add a new log entry
:param message: The request message
:type  message: str

:param request: The Request associated with this response
:type  request: Request or None

:return: The logged Response instance
:rtype : Response