def METHOD_NAME():
    """Check a RuntimeError is raised if the models have different timesteps."""
    path = Path(os.path.dirname(__file__)) / "models" / "two-independent-sub-models"
    multi_model = MultiModel.load(path / "integrated-model.json")
    multi_model.models["model1"].timestepper.start = "1900-01-01"
    with pytest.raises(RuntimeError):
        multi_model.run()