def default_chat_template(self):
        """
        A simple chat template that just adds BOS/EOS tokens around messages while discarding role information.
        """
        logger.warning_once(
            "\nNo chat template is defined for this tokenizer - using the default template "
            f"for the {self.__class__.__name__} class. If the default is not appropriate for "
            "your model, please set `tokenizer.chat_template` to an appropriate template. "
            "See https://huggingface.co/docs/transformers/main/chat_templating for more information.\n"
        )
        return (
            "{% for message in messages %}"
            "{{ bos_token + eos_token + message.content + eos_token }}"
            "{% endfor %}"
            "{% if add_generation_prompt %} {{ bos_token + eos_token }} {% endif %}"
        )

        A simple chat template that just adds BOS/EOS tokens around messages while discarding role information.
        
dpkd/transformers/src/transformers/models/gpt_neox_japanese/tokenization_gpt_neox_japanese.py