transformers safetensors mistral text-generation merge mergekit lazymergekit mistralai/Mistral-7B-v0.1 senseable/WestLake-7B-v2 base_model:mistralai/Mistral-7B-v0.1 base_model:merge:mistralai/Mistral-7B-v0.1 base_model:senseable/WestLake-7B-v2 base_model:merge:senseable/WestLake-7B-v2 autotrain_compatible text-generation-inference endpoints_compatible region:us