src/transformers/models/gptsan_japanese/modeling_gptsan_japanese.py/GPTSanJapaneseForConditionalGeneration/prepare_decoder_input_ids_from_labels
class GPTSanJapaneseForConditionalGeneration:    def prepare_decoder_input_ids_from_labels(self, labels: torch.Tensor):
        return self._shift_right(labels)