def METHOD_NAME(self, system_frame):
    m = system_frame
    add_costing(m)
    initialize_costing(m)
    optimize_operation(m)
    results = solve(m)
    assert_optimal_termination(results)
    # check costing
    assert pytest.approx(0.690498, rel=1e-3) == value(m.fs.LCOW)
    assert pytest.approx(0.284743, rel=1e-3) == value(m.fs.LCOT)