transformers gguf alignment-handbook trl dpo generated_from_trainer en dataset:HuggingFaceH4/ultrafeedback_binarized base_model:tanliboy/zephyr-qwen2-7b-dpo base_model:quantized:tanliboy/zephyr-qwen2-7b-dpo license:apache-2.0 endpoints_compatible region:us imatrix conversational