std::map<std::string, AttrValidators> myFeatures;
/// validators IDs and arguments by feature and attribute IDs
std::map<std::string, std::map<std::string, AttrValidators> > myAttrs;
std::map<std::string, AttrValidators> myFeatures;
/// validators IDs and arguments by feature and attribute IDs
std::map<std::string, std::map<std::string, AttrValidators> > myAttrs;