src/transformers/models/blenderbot/tokenization_blenderbot.py/BlenderbotTokenizer/build_inputs_with_special_tokens
class BlenderbotTokenizer:    def build_inputs_with_special_tokens(self, token_ids_0: List[int], token_ids_1: List[int] = None):
        """
        Build model inputs from a sequence or a pair of sequence for sequence classification tasks by concatenating and
        adding special tokens. A Blenderbot sequence has the following format:

        - single sequence: `` X </s>``

        Args:
            token_ids_0 (:obj:`List[int]`):
                List of IDs to which the special tokens will be added
            token_ids_1 (:obj:`List[int]`, `optional`):
                Will be ignored

        Returns:
            :obj:`List[int]`: list of `input IDs <../glossary.html#input-ids>`__ with the appropriate special tokens.
        """
        return token_ids_0 + [self.eos_token_id]