def METHOD_NAME(self, token_ids_0, token_ids_1=None):
    """
    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`):
            token_ids_1 Will be ignored
    Returns:
        :obj:`List[int]`: List of input_id with the appropriate special tokens.
    """
    return token_ids_0 + [self.eos_token_id]