def METHOD_NAME():
    """Test a simple parfile without frequency derivatives, proper motion,
    PEPOCH and POSEPOCH."""
    model = tm.get_model(
        io.StringIO(
            """
            PSR J1234+5678
            ELAT 0
            ELONG 0
            F0 1
            DM 10
            """
        )
    )
    assert model.ELAT.value == model.ELONG.value == 0
    assert model.PEPOCH.quantity is None and model.POSEPOCH.quantity is None