10   std::vector<std::string> 
const cfgkeys = cfg.
get_names();
    14   for (
auto const& 
key : cfgkeys) {
    20       this->set_base_uri(s);
 MaybeLogger_< ELseverityLevel::ELsev_info, true > LogVerbatim
 
#define DEFINE_ART_SERVICE(svc)                                                                                            
 
std::optional< T > get_if_present(std::string const &key) const 
 
std::vector< std::string > get_names() const 
 
IFDH(fhicl::ParameterSet const &cfg)