def default_chat_template(self):
        """
        A simple chat template that adds standard BOS, SEP and EOS tokens between 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 %}"
            "{% if not loop.first %}{{ bos_token}}{% endif %}"
            "{{ sep_token }}{{ message.content }} {{ eos_token }}"
            "{% endfor %}"
        )

        A simple chat template that adds standard BOS, SEP and EOS tokens between messages while discarding role
        information.
        
dpkd/transformers/src/transformers/models/gptsan_japanese/tokenization_gptsan_japanese.py