transformers gguf alignment-handbook gemma llama-cpp gguf-my-repo dataset:wzhouad/gemma-2-ultrafeedback-hybrid base_model:wzhouad/gemma-2-9b-it-WPO-HB base_model:quantized:wzhouad/gemma-2-9b-it-WPO-HB endpoints_compatible region:us imatrix conversational