transformers safetensors stablelm_epoch text-generation mergekit merge conversational custom_code arxiv:2203.05482 base_model:jeiku/Furry_Request_StableLM base_model:merge:jeiku/Furry_Request_StableLM base_model:jeiku/Rosa_v1_3B base_model:merge:jeiku/Rosa_v1_3B autotrain_compatible region:us