def test_construct_bad_attrs(self):
        with self.assertRaises(ValueError) as manager:
            Theme(json=dict(attrs=42))
        self.assertTrue(repr(manager.exception) in "should be a dictionary of class names")
dataset/ETHPy150Open bokeh/bokeh/bokeh/tests/test_themes.py/TestThemes.test_construct_bad_attrs/swapped operands of `in`