a module foo.<lang>.tex with \begin{smodule}[sig=en should not allow \importmodule, but only \usemodule.
Actually, we might want to consider putting the \inputmodule into the foo.en.tex. (I am only using en for simplicity here; any other language is also implied).
a module
foo.<lang>.texwith\begin{smodule}[sig=enshould not allow\importmodule, but only\usemodule.Actually, we might want to consider putting the
\inputmoduleinto thefoo.en.tex. (I am only usingenfor simplicity here; any other language is also implied).