transformers gguf merge mergekit lazymergekit PetroGPT/WestSeverus-7B-DPO-v2 en base_model:PetroGPT/WestBreeze-7B-DPO base_model:quantized:PetroGPT/WestBreeze-7B-DPO license:apache-2.0 endpoints_compatible region:us