Saving filament::Scene to fbx format file

[Pankaj003]

Hi, I am trying to save the rendered scene in a fbx format file. Initially I loaded the 3d model from a fbx file, read using assimp library and loaded using filament engine. My requirement is to modify the scene and save it back in fbx format file.
Is there any way I can convert the filament scene to assimp aiScene and use assimp exporter? Or can I directly save the filament::Scene to fbx format file?

Thanks