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            Construct a basic_stream_socket without
            opening it.
          
basic_stream_socket( asio::io_service & io_service);
This constructor creates a stream socket without opening it. The socket needs to be opened and then connected or accepted before data can be sent or received on it.
                  The io_service
                  object that the stream socket will use to dispatch handlers for
                  any asynchronous operations performed on the socket.