transformers safetensors mistral text-generation mergekit merge conversational arxiv:2212.04089 base_model:mistralai/Mistral-7B-Instruct-v0.2 base_model:finetune:mistralai/Mistral-7B-Instruct-v0.2 license:apache-2.0 model-index autotrain_compatible text-generation-inference endpoints_compatible region:us