ment their own "connection
                    manager", but there is no requirement to do so.
                  </p>
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                            <p>
                              <a href="http://www.boost.org/doc/html/boost_asio/reference/async_connect.html" target="_top">Beast</a>,
                              <a href="http://www.boost.org/doc/html/boost_asio/reference/basic_socket_acceptor/async_accept.h