* [chat] strategy refactor unwrap model * [chat] strategy refactor save model * [chat] add docstr * [chat] refactor trainer save model * [chat] fix strategy typing * [chat] refactor trainer save model * [chat] update readme * [chat] fix unit test
* [chat] refactor lora * [chat] remove lm class * [chat] refactor save model * [chat] refactor train sft * [chat] fix ci * [chat] fix ci
Co-authored-by: Yuanchen Xu <yuanchen.xu00@gmail.com>