- add("train", static_cast<void (Loader::*)(unsigned, unsigned)>(&Loader::train));
- add("train", static_cast<void (Loader::*)(ArticleNumber, unsigned)>(&Loader::train));
+ add("train", static_cast<void (Loader::*)(unsigned, unsigned, const std::string &)>(&Loader::train));
+ add("train", static_cast<void (Loader::*)(ArticleNumber, unsigned, const std::string &)>(&Loader::train));