transformers safetensors qwen2 text-generation mergekit merge OG_finetune_merge conversational base_model:Qwen/Qwen2-72B-Instruct base_model:merge:Qwen/Qwen2-72B-Instruct base_model:alpindale/magnum-72b-v1 base_model:merge:alpindale/magnum-72b-v1 autotrain_compatible text-generation-inference endpoints_compatible region:us