idd_object()
takes a parent Idd
object, a class name, and returns a
corresponding IddObject. For details, see IddObject.
idd_object(parent, class)
An IddObject object.
if (FALSE) {
idd <- use_idd(8.8, download = "auto")
# get an IddObject using class name
idd_object(idd, "Material")
idd_object(8.8, "Material")
}