where to enter the query string in boost :: asio -> tcp?

[zaharZ]

tcp::resolver::query Query(«192.168.0.1», «5000», «tcp»

tcp::resolver::iterator EndPointIterator = resolver.resolve(Query);

We expose in Boost IP, port and tcp, according to the documentation

Question: where to enter the query string, for example, «info»?

 asio, tcp