transformers safetensors mistral text-generation unsloth trl sft conversational base_model:unsloth/Mistral-Nemo-Base-2407-bnb-4bit base_model:finetune:unsloth/Mistral-Nemo-Base-2407-bnb-4bit license:apache-2.0 autotrain_compatible text-generation-inference endpoints_compatible region:us