mlx mistral alignment-handbook generated_from_trainer hi dataset:HuggingFaceH4/ultrachat_200k dataset:rohansolo/BB_HindiHinglish base_model:mistralai/Mistral-7B-v0.1 base_model:finetune:mistralai/Mistral-7B-v0.1 license:cc-by-nc-4.0 region:us