* add export merged model example * add sources * add script * fix style
* Support xpu finetuning * support xpu finetuning * fix style * fix style * fix style * refine example * add readme * refine readme * refine api * fix fp16 * fix example * refactor * fix style * fix compute type * add qlora * refine training args * fix example * fix style * fast path forinference * address comments * refine readme * revert lint