def test_construct_json_and_filename(self):
        with self.assertRaises(ValueError) as manager:
            # we check "" and {} as falsey values, to try to trick
            # our code into thinking they weren't provided.
            Theme(filename="", json={})
        self.assertTrue(repr(manager.exception) in "not both")
dataset/ETHPy150Open bokeh/bokeh/bokeh/tests/test_themes.py/TestThemes.test_construct_json_and_filename/swapped operands of `in`