238   void Dump(std::ostream& os) const {  in Dump()  argument
239     value_.Dump(os);  in Dump()
249 std::ostream& operator<<(std::ostream& os, const Dumpable<T>& rhs) {
250   rhs.Dump(os);
251   return os;
260   void Dump(std::ostream& os) const {  in Dump()  argument
261     value_.Dump(os);  in Dump()
271 std::ostream& operator<<(std::ostream& os, const ConstDumpable<T>& rhs) {
272   rhs.Dump(os);
273   return os;
282     std::ostringstream os;  in ToStr()  local
283     os << value;  in ToStr()
284     s_ = os.str();  in ToStr()