def test_flatten_double_list(self):
        self.assertEqual([1, [2, 'b'], 3, 4],
                         list(flatten([[1], [[2, 'b'], 3], [4]])))
Return e**x.
dataset/ETHPy150Open duerrp/pyexperiment/tests/test_functional.py/TestFlatten.test_flatten_double_list--crossover with--dataset/ETHPy150Open JetBrains/python-skeletons/math.py/exp