def METHOD_NAME():
    names = 'year mon day hour minu sec _ lat lon dep mag id'
    incomplete_names = 'year mon day hour minu sec _ lat lon dep'
    fname = '/path/to/external.csv'
    assert not iocsv._is_csv(fname)
    events = read_events(fname, 'CSV', skipheader=1, names=names)
    events2 = read_events(fname, 'CSV', skipheader=1, names=incomplete_names)
    assert len(events) == 1
    assert str(events[0].origins[0].time) == '2023-05-06T19:55:01.300000Z'
    assert len(events[0].magnitudes) == 1
    assert len(events2) == 1
    assert str(events2[0].origins[0].time) == '2023-05-06T19:55:01.300000Z'
    assert len(events2[0].magnitudes) == 0