def AddMatchingHandler(self, matcher):
    if isinstance(matcher, SimpleHandler):
      self.matchers.append(matcher)
    else:
      self.matchers.extend(matcher.matchers)
Unknown status codes are not recorded in C{mucStatuses}.
dataset/ETHPy150Open GoogleCloudPlatform/python-compat-runtime/appengine-compat/exported_appengine_sdk/google/appengine/tools/handler.py/OverlappedHandler.AddMatchingHandler--crossover with--dataset/ETHPy150Open ralphm/wokkel/wokkel/test/test_muc.py/UserPresenceTest.test_fromElementStatusUnknown