Setting function attribute while writing Citygml document doesn't work properly. It seams like list attribute problem....

Hi I'm working with FME to write citygml document, I have 3D geometry features with attributes(class, function, usage...etc.) The table above shows the results after passing features to CityGMLGeometrySetter.

I want to use them as attributes of citygml document. however When I generate citygml document, Only class attribute was written properly but function attribute doesn't show in the file.

• this is what i did.

• generated citygml document

I guess I need to change function attribute(just string now) to list attribute because the writer says citygml_function{} required. But not familiar with that. I have know idea what to do next. Please help me doing this!