ogrammer from concerns related
   to registration. If you really need a single worker,
   you can call the function with an empty RegistryDesc, 
   <em>i.e.</em> with an empty queue name.
</p><ul><li> <code>Con</code>: Connection to a Stomp broker;
</li><li> String: Name of the worker used for error reporting;
</li><li> <code><a href="Network-Mom-Stompl-Patterns-Basic.html#t:JobName">JobName</a></code>: Name of the job, the worker provides;
</li><li> (<code>Message</code> i  -&gt; IO ()): The job provided b