Number Of Texture Verticies in MaxScript UVW unwrap

Getting Number of Texture Vertices:

This:
UVertCount = GEOM.modifiers[#unwrap_uvw].NumberVertices()

NOT This:
MapCN = GEOM.modifiers[#unwrap_uvw].unwrap.getMapChannel();
UVertCount = polyop.getNumMapFaces GEOM MapCN;