def METHOD_NAME(self):
    with pytest.warns(
        UserWarning,
        match=r"Element assumed from cif file to be Element: silicon, symbol: Si, atomic number: 14, mass: 28.085.",
    ):
        lattice_cif = load_cif(file_or_path=get_fn("ETV_triclinic.cif"))
        periodic_boxed_molecule = lattice_cif.populate(x=1, y=1, z=1)