code: def event(self, name, etype, **info):
          
          if etype not in ("begin", "end", "single"):
              raise ValueError("Event type must any of the following: 'begin', "
                               "'end', 'single'")
          for handler in logging.getLogger().handlers:
              if isinstance(handler, MongoLogHandler):
                  data = {"session": handler.log_id,
                          "instance": handler.node_id,
                          "time": time(),
                          "domain": self.__class__.__name__,
                          "name": name,
                          "type": etype}
                  dupkeys = set(data.keys()).intersection(set(info.keys()))
                  if len(dupkeys) > 0:
                      raise ValueError("Event kwargs may not contain %s" %
                                       dupkeys)
                  data.update(info)
                  handler.events.insert(data, w=0)
docs: Records an event to MongoDB. Events can be later viewed in web status.
          Parameters:
              name: the name of the event, for example, "Work".
              etype: the type of the event, can be either "begin", "end" or
              "single".
              info: any extra event attributes.