@classmethod
    def setUpClass(cls):
        super(NoYamlSerializerTestCase, cls).setUpClass()

        cls._import_module_mock = YamlImportModuleMock()
        importlib.import_module = cls._import_module_mock.import_module

        # clear out cached serializers to emulate yaml missing
        serializers._serializers = {}
str,str->list
dataset/ETHPy150Open django/django/tests/serializers/test_yaml.py/NoYamlSerializerTestCase.setUpClass--crossover with--dataset/ETHPy150Open cnbeining/Biligrab/biligrab.py/get_resolution