transformers safetensors qwen2 text-generation code codeqwen chat qwen qwen-coder conversational en arxiv:2409.12186 arxiv:2407.10671 base_model:Qwen/Qwen2.5-Coder-3B-Instruct base_model:quantized:Qwen/Qwen2.5-Coder-3B-Instruct license:other autotrain_compatible text-generation-inference endpoints_compatible 4-bit awq region:us