def METHOD_NAME(self):
    self.potential.train(
        train_structures=self.test_structures,
        train_energies=self.test_energies,
        train_forces=self.test_forces,
        train_stresses=self.test_stresses,
        unfitted_mtp="08g.mtp",
        max_dist=3.0,
        max_iter=20,
    )
    assert self.potential.param