transformers gguf merge mergekit lazymergekit aloobun/Reyna-Mini-1.8B-v0.2 Qwen/Qwen1.5-1.8B en base_model:u66u/Reyna-Mini-1.8B-v0.2-Qwen1.5-1.8B-Merged-Slerp base_model:quantized:u66u/Reyna-Mini-1.8B-v0.2-Qwen1.5-1.8B-Merged-Slerp endpoints_compatible region:us conversational