transformers pytorch mistral text-generation mamba alignment-handbook generated_from_trainer conversational dataset:HuggingFaceH4/ultrafeedback_binarized base_model:JunxiongWang/mamba_0_875_sft base_model:finetune:JunxiongWang/mamba_0_875_sft autotrain_compatible text-generation-inference endpoints_compatible region:us