transformers tensorboard safetensors gemma text-generation alignment-handbook trl dpo generated_from_trainer conversational dataset:argilla/dpo-mix-7k base_model:ale-bay/zephyr-2b-gemma-sft base_model:finetune:ale-bay/zephyr-2b-gemma-sft license:gemma autotrain_compatible text-generation-inference endpoints_compatible region:us