Yeah, this is the big thing. Honestly I'm not so worried about people using pkg.fun("red") or pkg.fun(25) instead of pkg.fun(pkg.Red) if they really want to, an

Yeah, this is the big thing. Honestly I'm not so worried about people using pkg.fun("red") or pkg.fun(25) instead of pkg.fun(pkg.Red) if they really want to, and in some cases it's IMHO even fine (e.g. HTTP status codes, where everyone knows what 404, 500, etc. mean). It's pkg.fun(someVar) where someVar is accidentally 0 or "" because it comes from 3 functions away.