mlx safetensors mistral merge mergekit lazymergekit mistralai/Mistral-7B-Instruct-v0.2 cognitivecomputations/dolphin-2.8-mistral-7b-v02 base_model:cognitivecomputations/dolphin-2.8-mistral-7b-v02 base_model:merge:cognitivecomputations/dolphin-2.8-mistral-7b-v02 base_model:mistralai/Mistral-7B-Instruct-v0.2 base_model:merge:mistralai/Mistral-7B-Instruct-v0.2 license:apache-2.0 region:us