transformers safetensors llama text-generation conversational arxiv:1910.09700 base_model:HuggingFaceTB/SmolLM2-1.7B-Instruct base_model:finetune:HuggingFaceTB/SmolLM2-1.7B-Instruct license:apache-2.0 autotrain_compatible text-generation-inference endpoints_compatible region:us