def test_value(self):
    ' docstring '
    for i in range(len(test_cases)):
        for j in range(len(results[i])):
            self.assertEqual(results[i][j], test_cases[i]['mean'])
            self.assertEqual(resultsInt64[i][j], test_cases[i]['meanInt64'])
            self.assertIsInstance(results[i][j], np.float64)
            self.assertIsInstance(resultsInt64[i][j], np.int64)
docstring
def test_value(self):
    '  '
    for i in range(len(test_cases)):
        for j in range(len(results[i])):
            self.assertEqual(results[i][j], test_cases[i]['mean'])
            self.assertEqual(resultsInt64[i][j], test_cases[i]['meanInt64'])
            self.assertIsInstance(results[i][j], np.float64)
            self.assertIsInstance(resultsInt64[i][j], np.int64)