def assert_is(expr1, expr2, msg=None):
        pass
Get the list of series, in DataFrame
dataset/ETHPy150Open JetBrains/python-skeletons/nose/tools/__init__.py/assert_is--crossover with--dataset/ETHPy150Open influxdata/influxdb-python/influxdb/_dataframe_client.py/DataFrameClient.get_list_series