transformers gguf quantized 2-bit 3-bit 4-bit 5-bit 6-bit 8-bit GGUF safetensors text-generation conversational function-calling text-generation-inference region:us base_model:fireworks-ai/llama-3-firefunction-v2 base_model:quantized:fireworks-ai/llama-3-firefunction-v2 license:llama3 imatrix