- add("track", &Loader::track);
- add("vehicle", &Loader::vehicle);
+ add("track", static_cast<void (Loader::*)(unsigned)>(&Loader::track));
+ add("track", static_cast<void (Loader::*)(ArticleNumber)>(&Loader::track));
+ add("vehicle", static_cast<void (Loader::*)(unsigned)>(&Loader::vehicle));
+ add("vehicle", static_cast<void (Loader::*)(ArticleNumber)>(&Loader::vehicle));