I'm trying to use TNTN to include a translatable template in another template here: https://wiki.documentfoundation.org/Template:Documentation/Calc_Functions/COUP_Functions_Arguments
MW version is 1.39.
I also tried this in a MW docker locally and while Scribunto itself works, I can't get the module to work. In my docker, it returns
{{ {{#if:|{{{template}}}|Documentation/Calc_Functions/FinancialFunction_Basis}} }}