Mais example is not working

Hi, I am interested to use this dataset. my plan is to get same data processing and split so I could get apple to apple comparison with previous work. However, I couldn't run train_lgbm in mais folder with error below:
ImportError: cannot import name 'prepare_data' from 'tune_lgbm' (\3W-main\3W-main\toolkit\mais\training\multiclass\tune_lgbm.py)

Please advice