def test_DataUser(self):
        do = Channel('', conf=self.config)
        self.assertTrue(isinstance(do, DataUser))
Figure out all the keys in the `data` dict for csv columns.
dataset/ETHPy150Open openworm/PyOpenWorm/tests/ChannelTest.py/ChannelTest.test_DataUser--crossover with--dataset/ETHPy150Open mozilla/addons-server/src/olympia/stats/views.py/csv_fields