https://mutter.gnome.org/clutter/class.TextureNode.html
Clutter.TextureNode
Reference for Clutter.TextureNode
clutter
https://docs.blender.org/api/current/bpy.types.TextureNodeRGBToBW.html
TextureNodeRGBToBW(TextureNode) - Blender Python API
blenderpythonapi