def clear(self):
raise FrozenInstanceError()
def pop(self, key, **kwargs):
raise FrozenInstanceError()
def __delattr__(self, name):
raise FrozenInstanceError()
def __setattr__(self, name, value):
raise FrozenInstanceError()
def __delitem__(self, key):
raise FrozenInstanceError()
def __setitem__(self, key, value):
raise FrozenInstanceError()
