transformers gguf fireplace valiant valiant-labs llama llama-3 llama-3-instruct llama-3-instruct-70b 70b function-calling conversational chat instruct en base_model:ValiantLabs/Llama3-70B-Fireplace base_model:quantized:ValiantLabs/Llama3-70B-Fireplace license:llama3 endpoints_compatible region:us imatrix