@staticmethod
    def get_missing_core_extensions(extensions_loaded):
        extensions_loaded = set(extensions_loaded)
        missing_extensions = extensions_loaded - API_V21_CORE_EXTENSIONS
        return list(missing_extensions)
dataset/ETHPy150Open BU-NU-CLOUD-SP16/Trusted-Platform-Module-nova/nova/api/openstack/__init__.py/APIRouterV21.get_missing_core_extensions/swapped operands of `-`