How to use the b2luigi.get_setting function in b2luigi

def test_deprecated_settings(self):
        self.assertRaises(ValueError, b2luigi.get_setting, key="my_setting", 
                          deprecated_keys=["my_old_setting"])

        b2luigi.set_setting("my_old_setting", "my value")

        with warnings.catch_warnings(record=True) as w:
            self.assertEqual("my value", b2luigi.get_setting("my_setting", 
                            deprecated_keys=["my_old_setting"]))

            self.assertEqual(len(w), 1)
            self.assertIsInstance(w[-1].message, DeprecatedSettingsWarning)
            self.assertIn("deprecated", str(w[-1].message))

        b2luigi.set_setting("my_setting", "my new_value")

        with warnings.catch_warnings(record=True) as w:
            self.assertEqual("my new_value", b2luigi.get_setting("my_setting", default="default",

def test_set_by_file(self):
        with open("settings.json", "w") as f:
            json.dump({"my_setting": "my file value"}, f)

        self.assertEqual("my file value", b2luigi.get_setting("my_setting"))

        b2luigi.set_setting("my_setting", "my value")

        self.assertEqual("my value", b2luigi.get_setting("my_setting"))

def test_set_by_function(self):
        self.assertRaises(ValueError, b2luigi.get_setting, "my_setting")

        self.assertEqual("default", b2luigi.get_setting("my_setting", "default"))

        b2luigi.set_setting("my_setting", "my value")

        self.assertEqual("my value", b2luigi.get_setting("my_setting"))
        self.assertEqual("my value", b2luigi.get_setting("my_setting", "default"))

deprecated_keys=["my_old_setting"])

        b2luigi.set_setting("my_old_setting", "my value")

        with warnings.catch_warnings(record=True) as w:
            self.assertEqual("my value", b2luigi.get_setting("my_setting", 
                            deprecated_keys=["my_old_setting"]))

            self.assertEqual(len(w), 1)
            self.assertIsInstance(w[-1].message, DeprecatedSettingsWarning)
            self.assertIn("deprecated", str(w[-1].message))

        b2luigi.set_setting("my_setting", "my new_value")

        with warnings.catch_warnings(record=True) as w:
            self.assertEqual("my new_value", b2luigi.get_setting("my_setting", default="default", 
                            deprecated_keys=["my_old_setting"]))

            self.assertEqual(len(w), 0)

def _get_dir_structure(data_mode):
    if data_mode == DataMode.mdst:
        return b2luigi.get_setting("mdst_dir_structure",
                                   "/hsm/belle2/bdata/Data/release-{p.release}/DB{p.database:08d}/prod{p.prod:08d}/" + \
                                   "e{p.experiment_number:04d}/4S/r{p.run_number:05d}/all/mdst/sub00/" + \
                                   "mdst.{p.prefix}.{p.experiment_number:04d}.{p.run_number:05d}.{p.file_name}.root")
    elif data_mode == DataMode.cdst:
        return b2luigi.get_setting("cdst_dir_structure",
                                   "/hsm/belle2/bdata/Data/release-{p.release}/DB{p.database:08d}/prod{p.prod:08d}/" + \
                                   "e{p.experiment_number:04d}/4S/r{p.run_number:05d}/all/cdst/sub00/" + \
                                   "cdst.{p.prefix}.{p.experiment_number:04d}.{p.run_number:05d}.{p.file_name}.root")
    elif data_mode == DataMode.skimmed_raw:
        return b2luigi.get_setting("skimmed_raw_dir_structure",
                                   "/hsm/belle2/bdata/Data/release-{p.release}/DB{p.database:08d}/prod{p.prod:08d}/" + \
                                   "e{p.experiment_number:04d}/4S/r{p.run_number:05d}/all/raw/sub00/" + \
                                   "raw.{p.prefix}.{p.file_name}.{p.experiment_number:04d}.{p.run_number:05d}.root")
    elif data_mode == DataMode.raw:
        return b2luigi.get_setting("raw_dir_structure",
                                   "/ghi/fs01/belle2/bdata/Data/Raw/e{p.experiment_number:04d}/r{p.run_number:05d}/sub00/" + \

def _get_dir_structure(data_mode):
    if data_mode == DataMode.mdst:
        return b2luigi.get_setting("mdst_dir_structure",
                                   "/hsm/belle2/bdata/Data/release-{p.release}/DB{p.database:08d}/prod{p.prod:08d}/" + \
                                   "e{p.experiment_number:04d}/4S/r{p.run_number:05d}/all/mdst/sub00/" + \
                                   "mdst.{p.prefix}.{p.experiment_number:04d}.{p.run_number:05d}.{p.file_name}.root")
    elif data_mode == DataMode.cdst:
        return b2luigi.get_setting("cdst_dir_structure",
                                   "/hsm/belle2/bdata/Data/release-{p.release}/DB{p.database:08d}/prod{p.prod:08d}/" + \
                                   "e{p.experiment_number:04d}/4S/r{p.run_number:05d}/all/cdst/sub00/" + \
                                   "cdst.{p.prefix}.{p.experiment_number:04d}.{p.run_number:05d}.{p.file_name}.root")
    elif data_mode == DataMode.skimmed_raw:
        return b2luigi.get_setting("skimmed_raw_dir_structure",
                                   "/hsm/belle2/bdata/Data/release-{p.release}/DB{p.database:08d}/prod{p.prod:08d}/" + \
                                   "e{p.experiment_number:04d}/4S/r{p.run_number:05d}/all/raw/sub00/" + \
                                   "raw.{p.prefix}.{p.file_name}.{p.experiment_number:04d}.{p.run_number:05d}.root")
    elif data_mode == DataMode.raw:
        return b2luigi.get_setting("raw_dir_structure",
                                   "/ghi/fs01/belle2/bdata/Data/Raw/e{p.experiment_number:04d}/r{p.run_number:05d}/sub00/" + \
                                   "{p.prefix}.{p.experiment_number:04d}.{p.run_number:05d}.{p.file_name}.root")

def _get_dir_structure(data_mode):
    if data_mode == DataMode.mdst:
        return b2luigi.get_setting("mdst_dir_structure",
                                   "/hsm/belle2/bdata/Data/release-{p.release}/DB{p.database:08d}/prod{p.prod:08d}/" + \
                                   "e{p.experiment_number:04d}/4S/r{p.run_number:05d}/all/mdst/sub00/" + \
                                   "mdst.{p.prefix}.{p.experiment_number:04d}.{p.run_number:05d}.{p.file_name}.root")
    elif data_mode == DataMode.cdst:
        return b2luigi.get_setting("cdst_dir_structure",
                                   "/hsm/belle2/bdata/Data/release-{p.release}/DB{p.database:08d}/prod{p.prod:08d}/" + \
                                   "e{p.experiment_number:04d}/4S/r{p.run_number:05d}/all/cdst/sub00/" + \
                                   "cdst.{p.prefix}.{p.experiment_number:04d}.{p.run_number:05d}.{p.file_name}.root")
    elif data_mode == DataMode.skimmed_raw:
        return b2luigi.get_setting("skimmed_raw_dir_structure",
                                   "/hsm/belle2/bdata/Data/release-{p.release}/DB{p.database:08d}/prod{p.prod:08d}/" + \
                                   "e{p.experiment_number:04d}/4S/r{p.run_number:05d}/all/raw/sub00/" + \
                                   "raw.{p.prefix}.{p.file_name}.{p.experiment_number:04d}.{p.run_number:05d}.root")
    elif data_mode == DataMode.raw:
        return b2luigi.get_setting("raw_dir_structure",
                                   "/ghi/fs01/belle2/bdata/Data/Raw/e{p.experiment_number:04d}/r{p.run_number:05d}/sub00/" + \
                                   "{p.prefix}.{p.experiment_number:04d}.{p.run_number:05d}.{p.file_name}.root")