[Closed] How to find faces without UV coordinates?

Hello everybody!
I am trying to write a script to search for faces on which there are no UV Coordinates, but I can not figure out how to do this.
I want to use this script to assign the correct UV Coordinates to the endpoints of a Sweep object.
I think that this can be done using the Unwrap_UVW modifier, but I don’t know how to select only endpoints faces through a script and assign Planar Mapping to each of them with the specified parameters – length, width or fit or Real-World Map Size, depending on the corresponding value “Gen . Mapping Coords. ” in Sweep modifier.

Tell me the way to this solution. Is it possible to do this with a maxscript?