src/transformers/tokenization_utils_base.py/PreTrainedTokenizerBase/_decode
class PreTrainedTokenizerBase:    def _decode(
        self,
        token_ids: Union[int, List[int]],
        skip_special_tokens: bool = False,
        clean_up_tokenization_spaces: bool = True,
        **kwargs
    ) -> str:
        raise NotImplementedError