How to use the nidmm.Function function in nidmm

def test_fetch_multiple(session):
    session.configure_measurement_digits(nidmm.Function.DC_VOLTS, 10, 5.5)
    session.configure_multi_point(sample_count=10, trigger_count=1)
    with session.initiate():
        measurements = session.fetch_multi_point(5)
        assert len(measurements) == 5
        measurements = session.fetch_multi_point(5)
        backlog, acquisition_state = session.read_status()
        assert acquisition_state == nidmm.AcquisitionStatus.FINISHED_WITH_NO_BACKLOG

def test_configure_waveform_acquisition(session):
    session.configure_waveform_acquisition(nidmm.Function.WAVEFORM_VOLTAGE, 100, 1800000, 400)
    assert session.function == nidmm.Function.WAVEFORM_VOLTAGE
    assert session.range == 100
    assert session.waveform_rate == 1800000
    assert session.waveform_points == 400

def test_enum_attribute(session):
    session.function = nidmm.Function.AC_CURRENT
    assert session.function == nidmm.Function.AC_CURRENT
    assert type(session.function) is nidmm.Function
    try:
        session.function = nidmm.LCCalculationModel.SERIES
        assert False
    except TypeError as e:
        pass

def test_enum_attribute(session):
    session.function = nidmm.Function.AC_CURRENT
    assert session.function == nidmm.Function.AC_CURRENT
    assert type(session.function) is nidmm.Function
    try:
        session.function = nidmm.LCCalculationModel.SERIES
        assert False
    except TypeError as e:
        pass

def _main(argsv):
    parser = argparse.ArgumentParser(description='Performs a waveform acquisition using the NI-DMM API.', formatter_class=argparse.ArgumentDefaultsHelpFormatter)
    parser.add_argument('-n', '--resource-name', default='PXI1Slot2', help='Resource name of a National Instruments Digital Multimeter.')
    parser.add_argument('-f', '--function', default='WAVEFORM_VOLTAGE', choices=nidmm.Function.__members__.keys(), type=str.upper, help='Measurement function.')
    parser.add_argument('-r', '--range', default=10, type=float, help='Measurement range.')
    parser.add_argument('-p', '--points', default=10, type=int, help='Specifies the number of points to acquire before the waveform acquisition completes.')
    parser.add_argument('-s', '--rate', default=1000, type=int, help='Specifies the rate of the acquisition in samples per second.')
    parser.add_argument('-op', '--option-string', default='', type=str, help='Option string')
    args = parser.parse_args(argsv)
    example(args.resource_name, args.option_string, args.function, args.range, args.points, args.rate)

def _main(argsv):
    supported_functions = list(nidmm.Function.__members__.keys())
    parser = argparse.ArgumentParser(description='Performs a single measurement using the NI-DMM API.', formatter_class=argparse.ArgumentDefaultsHelpFormatter)
    parser.add_argument('-n', '--resource-name', default='PXI1Slot2', help='Resource name of a National Instruments Digital Multimeter.')
    parser.add_argument('-f', '--function', default=supported_functions[0], choices=supported_functions, type=str.upper, help='Measurement function.')
    parser.add_argument('-r', '--range', default=10, type=float, help='Measurement range.')
    parser.add_argument('-d', '--digits', default=6.5, type=float, help='Digits of resolution for the measurement.')
    parser.add_argument('-op', '--option-string', default='', type=str, help='Option string')
    args = parser.parse_args(argsv)
    example(args.resource_name, args.option_string, args.function, args.range, args.digits)

def _main(argsv):
    parser = argparse.ArgumentParser(description='Performs a multipoint measurement using the NI-DMM API.', formatter_class=argparse.ArgumentDefaultsHelpFormatter)
    parser.add_argument('-n', '--resource-name', default='PXI1Slot2', help='Resource name of a National Instruments Digital Multimeter.')
    parser.add_argument('-f', '--function', default='DC_VOLTS', choices=nidmm.Function.__members__.keys(), type=str.upper, help='Measurement function.')
    parser.add_argument('-r', '--range', default=10, type=float, help='Measurement range.')
    parser.add_argument('-d', '--digits', default=6.5, type=float, help='Digits of resolution for the measurement.')
    parser.add_argument('-s', '--samples', default=10, type=int, help='The number of measurements the DMM makes.')
    parser.add_argument('-t', '--triggers', default=1, type=int, help='Sets the number of triggers you want the DMM to receive before returning to the Idle state.')
    parser.add_argument('-op', '--option-string', default='', type=str, help='Option string')
    args = parser.parse_args(argsv)
    example(args.resource_name, args.option_string, args.function, args.range, args.digits, args.samples, args.triggers)

def example(resource_name, options, function, range, digits, samples, triggers):
    with nidmm.Session(resource_name=resource_name, options=options) as session:
        session.configure_measurement_digits(measurement_function=nidmm.Function[function], range=range, resolution_digits=digits)
        session.configure_multi_point(trigger_count=triggers, sample_count=samples)
        measurements = session.read_multi_point(array_size=samples)
        print('Measurements: ', measurements)

def example(resource_name, options, function, range, points, rate):
    with nidmm.Session(resource_name=resource_name, options=options) as session:
        session.configure_waveform_acquisition(measurement_function=nidmm.Function[function], range=range, rate=rate, waveform_points=points)
        with session.initiate():
            while True:
                time.sleep(0.1)
                backlog, acquisition_state = session.read_status()
                if acquisition_state == nidmm.AcquisitionStatus.FINISHED_WITH_NO_BACKLOG:
                    break
                measurements = session.fetch_waveform(array_size=backlog)
                print(measurements)

def example(resource_name, option_string, function, range, digits):
    with nidmm.Session(resource_name=resource_name, options=option_string) as session:
        session.configure_measurement_digits(measurement_function=nidmm.Function[function], range=range, resolution_digits=digits)
        print(session.read())