Where do train/dev/test pickle files come from in BETTER/joint/main.py?

[lashmore]

I'm trying to find out how the ACE 2005 data gets written to the following pickle files which get loaded in the training pipeline of the BETTER component of this codebase. I do have a license for ACE 2005, but can't identify how it gets encoded for the training task.

p.add_argument('-train_pkl', type=str, default='./all_liz/train_w-pairs_xlmroberta.pkl')
p.add_argument('-dev_pkl', type=str, default='./all_liz/dev_w-pairs_xlmroberta.pkl')
p.add_argument('-test_pkl', type=str, default='./all_liz/test_w-pairs_xlmroberta.pkl')