The meaning of the score in the document 'toy_data/ppi.txt'

[ke-ning]

Thank the authors for the excellent work.
I would like to ask, when training a PPI model and importing the 'ppi.txt' file from the 'toy_data' folder, each line in this file contains a score. If I want to use my own dataset to replace this ppi.txt file, how can I obtain scores for my pairs of amino acid sequences? Or could I directly import pairs of amino acids without the score for model training? Thank you.