examples/research_projects/seq2seq-distillation/utils.py/LegacySeq2SeqDataset/encode_line
class LegacySeq2SeqDataset:    def encode_line(self, tokenizer, line, max_length, pad_to_max_length=True, return_tensors="pt"):
        """Only used by LegacyDataset"""
        return tokenizer(
            [line],
            max_length=max_length,
            padding="max_length" if pad_to_max_length else None,
            truncation=True,
            return_tensors=return_tensors,
            **self.dataset_kwargs,
        )