peft pytorch tensorboard safetensors mixtral text-generation axolotl generated_from_trainer nous_hermes wikihow lora qlora adapter finetune transformers conversational dataset:HuggingFaceTB/cosmopedia base_model:NousResearch/Nous-Hermes-2-Mixtral-8x7B-SFT base_model:adapter:NousResearch/Nous-Hermes-2-Mixtral-8x7B-SFT license:apache-2.0 region:us