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