transformers gguf mergekit merge roleplay sillytavern base_model:Endevor/InfinityRP-v1-7B base_model:merge:Endevor/InfinityRP-v1-7B base_model:l3utterfly/mistral-7b-v0.1-layla-v4 base_model:merge:l3utterfly/mistral-7b-v0.1-layla-v4 endpoints_compatible region:us