Removes properties from the file if they are not referenced by a Scene. Commonly helpful for cleaning up after other operations, e.g. allowing a node to be detached and any unused meshes, materials, or other resources to be removed automatically.
document.getRoot().listMaterials(); // → [Material, Material] await document.transform(prune()); document.getRoot().listMaterials(); // → [Material]
No options are currently implemented for this function.