Where is save_pickle defined?

In Scaling up: Road to the top - Part 3 Scaling Up: Road to the Top, Part 3 | Kaggle
the trained model is saved as follows:

save_pickle(‘tta_res.pkl’, tta_res)

Where is the save_pickle method defined? I couldn’t find the exact method in the python documentation. Basically I’m trying to figure out how to load a model/object that was saved using this exact method. I ended up saving it after training for almost 12 hours so it’s very precious to me :slight_smile:

save_pickle is a fastai method and its documentation is here and source code is here.