gguf function-calling LLM Agent tool-use mistral pytorch quantized GGUF quantization imat imatrix static 16bit 8bit 6bit 5bit 4bit 3bit 2bit 1bit text-generation en dataset:Salesforce/xlam-function-calling-60k base_model:Salesforce/xLAM-8x22b-r base_model:quantized:Salesforce/xLAM-8x22b-r license:cc-by-nc-4.0 region:us conversational