t:Session">Session</a> auth -&gt; <a href="../base-4.9.0.0/System-IO.html#t:IO">IO</a> () <a href="src/Network.MQTT.Broker.html#closeSession" class="link">Source</a> <a href="#v:closeSession" class="selflink">#</a></p></div><div class="top"><p class="src"><a id="v:publishDownstream" class="def">publishDownstream</a> :: <a href="Network-MQTT-Broker.html#t:Broker">Broker</a> auth -&gt; <a href="Network-MQTT-Message.html#t:Message">Message</a> -&gt; <a href="../base-4.9.0.0/System-IO.html#t:IO">IO</a> () <a hr