def test_build_event(self):
        evt = event.build_event("evt_name", arg1="val1", arg2=None)
        assert evt.name == "evt_name"
        assert evt.args == {'arg1': "val1", 'arg2': None}
def test_impl(n):
            df = pd.DataFrame({'A': np.arange(0, n, 1, np.float64)})
            return df.A.describe()