gguf nlp code text-generation en dataset:bigcode/the-stack-dedup dataset:rombodawg/2XUNCENSORED_MegaCodeTraining188k dataset:bigcode/commitpackft base_model:smallcloudai/Refact-1_6B-fim base_model:quantized:smallcloudai/Refact-1_6B-fim license:bigscience-openrail-m endpoints_compatible region:us