Custom Node in Example Workflow Missing and Not Found

[radiantone]

It seems there is a custom node in the example workflow provided that comfyUI cannot find and the node manager also does not think it is missing. How can we install this custom node?

[al-swaiti]

download this file to custom nodes folder https://github.com/WeChatCV/Wan-Alpha/blob/main/comfyui/RGBA_save_tools.py