transformers tensorboard safetensors llama text-generation alignment-handbook trl sft generated_from_trainer conversational dataset:HuggingFaceH4/ultrachat_200k base_model:JackFram/llama-68m base_model:finetune:JackFram/llama-68m license:apache-2.0 autotrain_compatible text-generation-inference endpoints_compatible region:us