uth =&gt; <a href="Network-MQTT-Broker.html#t:Broker">Broker</a> auth -&gt; <a href="Network-MQTT-Authentication.html#t:ConnectionRequest">ConnectionRequest</a> -&gt; <a href="../base-4.9.0.0/System-IO.html#t:IO">IO</a> () -&gt; (<a href="Network-MQTT-Authentication.html#t:AuthenticationException">AuthenticationException</a> auth -&gt; <a href="../base-4.9.0.0/System-IO.html#t:IO">IO</a> ()) -&gt; (<a href="Network-MQTT-Session.html#t:Session">Session</a> auth -&gt; <a href="Network-MQTT-Message.html#t:Sess