transformers gguf mergekit merge llama-cpp gguf-my-repo base_model:meta-llama/Meta-Llama-3-8B base_model:merge:meta-llama/Meta-Llama-3-8B base_model:meta-llama/Meta-Llama-3-8B-Instruct base_model:merge:meta-llama/Meta-Llama-3-8B-Instruct endpoints_compatible region:us