zeep::http::parameter_value
// In header: </build/libzeep-6IwJrE/libzeep-3.0.5/zeep/http/webapp.hpp> class parameter_value { public: // construct/copy/destruct parameter_value(); parameter_value(const std::string &, bool); // public member functions template<typename T> T as() const; bool empty() const; bool defaulted() const; template<> bool as() const; };