Based off MorenoLaQuatra's original repo.
Run with python3 download_unbalanced_train.py --split_idx 0 --n_splits 4 --n_jobs 12, and feel free to tinker.
NOTE: --sleep_amount is in seconds, and by default, the errors that are NOT caused by bot sniping will be saved to unavailable_urls.txt by default. When running the download again, it will use that file to skip over the download phase of that to avoid incurring any unnecessary downloads.