static void Mark_tools(STEPNCLib.Finder Find, STEPNCLib.AptStepMaker APT, StringBuilder builder)
{
long count = Find.GetToolAllCount();
for (long i = 0; i < count; i++){
long tl_id = Find.GetToolAllNext(i);
String uu = APT.SetUUID_if_not_set(tl_id);
//System.Console.WriteLine("Tool at " + tl_id + " has UUID: " + uu);
}
}