peft tensorboard safetensors mistral alignment-handbook generated_from_trainer trl dpo dataset:HuggingFaceH4/ultrafeedback_binarized base_model:DUAL-GPO-2/zephyr-7b-irepo-new-i2 base_model:adapter:DUAL-GPO-2/zephyr-7b-irepo-new-i2 license:apache-2.0 region:us