def METHOD_NAME(
    smu: Keithley26xx,
    dmm: Instrument,
    src_Z: float = 1e-30,
    time_delay: float = 3.0,
    save_calibrations: bool = False,
    dmm_range_per_smu_range_mapping: dict[str, float] | None = None,
) -> None:
    if dmm_range_per_smu_range_mapping is None:
        dmm_range_per_smu_range_mapping = {
            "200e-3": 1,
            "2": 10,
            "20": 100,
        }
    else:
        wrong_smu_range_keys = set(dmm_range_per_smu_range_mapping.keys()) - set(src_FS_map.keys())
        if len(wrong_smu_range_keys) > 0:
            raise ValueError(
                f"dmm_range_per_smu_range_mapping contains unknown keys {wrong_smu_range_keys}, "
                f"the possible keys are {set(src_FS_map.keys())}"
            )
    setup_dmm(dmm)
    for smu_channel in smu.channels:
        input(f"Please connect channel {smu_channel.channel} to V input on calibrated DMM.")
        for smu_range, dmm_range in dmm_range_per_smu_range_mapping.items():
            dmm.range(dmm_range)
            calibrate_keithley_smu_v_single(
                smu, smu_channel.channel, dmm.volt, smu_range, src_Z, time_delay
            )
    if save_calibrations:
        save_calibration(smu)