@base.resource(v3.PlaylistItems)
    def playlist_items(self):
        return v3.PlaylistItems(self)
test to make sure frozenset type data is rejected
dataset/ETHPy150Open ducksboard/libsaas/libsaas/services/youtube/service.py/YouTube.playlist_items--crossover with--dataset/ETHPy150Open NeuralEnsemble/python-neo/neo/test/coretest/test_base.py/TestBaseNeoContainerTypes.test_python_frozenset