    assembly = vtkPropAssembly()
    assembly.AddPart(axes)
    assembly.AddPart(cube)
    return assembly


--
    prop_assembly = vtkPropAssembly()
    prop_assembly.AddPart(annotated_cube)
    prop_assembly.AddPart(cube_actor)
    return prop_assembly


--
    assembly = vtkPropAssembly()
    assembly.AddPart(axes)
    assembly.AddPart(cube)
    return assembly


--
    assembly = vtkPropAssembly()
    assembly.AddPart(axes)
    assembly.AddPart(cube)
    return assembly


