Way to export/save intermediate logit outputs
Hello, I am currently training the Conformer-CTC model for ASR.

I am interested in how logit prediction changes throughout training, and I am wondering if there is any way to modify the code so that my model saves logits and targets data as a pickle file for the end of each validation step. I am aware that I can append each (logits, targets) in `validation_step_outputs` and then save them in `on_validation_epoch_end()`. However, I am a bit scared to overwrite the function in `ctc_bpe_models.py`. It would be great if there is a safer way to handle such a situation.