855     def _wait_event(self, mon, pfx, events, timeout):  argument
856         if not isinstance(events, list):
863                 for event in events:
874     def wait_event(self, events, timeout=10):  argument
875         return self._wait_event(self.mon, ": ", events, timeout)
877     def wait_global_event(self, events, timeout):  argument
879             return self.wait_event(events, timeout)
881                                 events, timeout)
883     def wait_group_event(self, events, timeout=10):  argument
884         if not isinstance(events, list):
894                     for event in events:
905         return self.wait_event(events, timeout)