GenerateCompositeDataSetFromHierarchy in Python

Hi everyone!

Quick question… How does one call the method…

output = vtkDataAssemblyUtilities.GenerateCompositeDataSetFromHierarchy(
        outPDSC, outPDSC.GetDataAssembly())

? I keep getting this error:

ValueError: cannot create object of unknown type "vtkSmartPointer_I19vtkCompositeDataSetE"