def demo_surfaceDeleteFaceFeatures_add(rootComp: adsk.fusion.Component):
    face = _ui.selectEntity('Select a face to delete.', 'Faces').entity
    faces = adsk.core.ObjectCollection.create()
    faces.add(face)
    surfaceDeleteFaceFeatures = rootComp.features.surfaceDeleteFaceFeatures
    deleteSurface = surfaceDeleteFaceFeatures.add(faces)