How can I get this file?

[caoxu915683474]

toxic/sergeif/bigru_focal_loss.py

Line 52 in c4f50a0

with open(r"Xtrain3.pickle", "rb") as output_file:

Thanks for sharing this good work !
I have some problems with this line, how can I generate this file ?
@ifserge
I will appreciate for your help !