transformers pytorch mistral text-generation alignment-handbook generated_from_trainer conversational dataset:HuggingFaceH4/ultrafeedback_binarized arxiv:2408.15237 base_model:JunxiongWang/mamba_0_75_sft base_model:finetune:JunxiongWang/mamba_0_75_sft autotrain_compatible text-generation-inference endpoints_compatible region:us