r.
        The following code sets a timeout for an asynchronous connect operation.
        In Beast, functions to connect to a range of endpoints (such as the range
        returned by <a href="../../../../../../doc/html/boost_asio/reference/ip__basic_resolver/resolve/overload3.html" target="_top"><code class="computeroutput"><span class="identifier">net</span><span class="special">::</span><span class="identifier">ip</span><span class="special">::</span><span class="identifier">tcp</span><span class="spec