transformers tensorboard safetensors llama-factory lora generated_from_trainer text-generation conversational en dataset:PocketDoc/RUCAIBox-Story-Generation-Alpaca arxiv:1910.09700 base_model:mistralai/Mistral-7B-Instruct-v0.1 base_model:adapter:mistralai/Mistral-7B-Instruct-v0.1 license:mit endpoints_compatible region:us