transformers safetensors mistral text-generation merge mergekit lazymergekit Virt-io/FMT-v2 Virt-io/FMT-v1 conversational base_model:Virt-io/FMT-v1 base_model:merge:Virt-io/FMT-v1 base_model:Virt-io/FMT-v2 base_model:merge:Virt-io/FMT-v2 autotrain_compatible text-generation-inference endpoints_compatible region:us