[Question] How to use customized chat template

[zpqiu]

What is the currently recommended method for customizing chat templates? I see there are two approaches, but both have some issues:

• In rl_dataset.py, it defaults to using the tokenizer's chat template to generate prompts, so one method is to modify the tokenizer's config.
• I notice that the RLHFDataset initialization function supports chat_template_func, but this function is not being used and there's no documentation or comments explaining how to define it?