没有对应的py文件

按照对应的操作去执行main.py,报错
  File "/home/xusl/Edit-Banana/modules/sam3_info_extractor.py", line 236, in load
    from sam3.model_builder import build_sam3_image_model
ModuleNotFoundError: No module named 'sam3.model_builder'
sam3文件夹下是空的，已经下载了模型，执行操作是
python main.py -i input/test_diagram.png