Duplicated from USF00/Wan2GP_Demo
https://huggingface.co/spaces/fatslappa/Wan2GP_Demo/resolve/main/preprocessing/raft/__init__.py
hf download hf://spaces/fatslappa/Wan2GP_Demo/preprocessing/raft/__init__.py
curl -L -o __init__.py https://huggingface.co/spaces/fatslappa/Wan2GP_Demo/resolve/main/preprocessing/raft/__init__.py
