Maya 3d Script to Archive Nested scenes

Maya 2017 has a Archive option that collects all the assets used in scene and saves the files in new directory. But in scenes that are nested within scenes then the built-in archive options will not collect nested scenes and their assets. So we need a script that will recursively scan the scene for nested assets and collect all of them and save in a specified folder. We are non-profit organization with volunteers that do our animation work.