transformers safetensors mistral text-generation merge mergekit lazymergekit SeaLLMs/SeaLLM-7B-v2 conversational base_model:SeaLLMs/SeaLLM-7B-v2 base_model:finetune:SeaLLMs/SeaLLM-7B-v2 autotrain_compatible text-generation-inference endpoints_compatible region:us