def default_chat_template(self):
        """
        This chat template formats messages like an instant messenger chat log, with "User:" and "Bot:" strings
        preceding messages. BOS tokens are added between all messages.
        """
        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 (
            "{{ eos_token }}{{ bos_token }}"
            "{% for message in messages %}"
            "{% if message['role'] == 'user' %}{{ 'User: ' + message['content']}}"
            "{% else %}{{ 'Bot: ' + message['content']}}{% endif %}"
            "{{ message['text'] }}{{ bos_token }}"
            "{% endfor %}"
            "Bot:"
        )

        This chat template formats messages like an instant messenger chat log, with "User:" and "Bot:" strings
        preceding messages. BOS tokens are added between all messages.
        
dpkd/transformers/src/transformers/models/gpt_sw3/tokenization_gpt_sw3.py