transformers gguf mergekit merge arxiv:2306.01708 base_model:defog/llama-3-sqlcoder-8b base_model:merge:defog/llama-3-sqlcoder-8b base_model:meta-llama/Meta-Llama-3-8B-Instruct base_model:merge:meta-llama/Meta-Llama-3-8B-Instruct endpoints_compatible region:us conversational