106             cls = super().__new__(mcls, name, bases, namespace, **kwargs)
107             _abc_init(cls)
108             return cls
110         def register(cls, subclass):  argument
115             return _abc_register(cls, subclass)
117         def __instancecheck__(cls, instance):  argument
119             return _abc_instancecheck(cls, instance)
121         def __subclasscheck__(cls, subclass):  argument
123             return _abc_subclasscheck(cls, subclass)
125         def _dump_registry(cls, file=None):  argument
130              _abc_negative_cache_version) = _get_dump(cls)
137         def _abc_registry_clear(cls):  argument
139             _reset_registry(cls)
141         def _abc_caches_clear(cls):  argument
143             _reset_caches(cls)
146 def update_abstractmethods(cls):  argument
162     if not hasattr(cls, '__abstractmethods__'):
166         return cls
171     for scls in cls.__bases__:
173             value = getattr(cls, name, None)
177     for name, value in cls.__dict__.items():
180     cls.__abstractmethods__ = frozenset(abstracts)
181     return cls