best_summary.json

{
  "best_epoch": 1,
  "best_val_bleu": 54.320860096201656,
  "val_overall": {
    "BLEU": 54.320860096201656,
    "chrF++": 71.89784284360341,
    "GLEU": 0.48904972471197644,
    "COMET": null,
    "COMET-QE": null,
    "n": 648
  }
}