e> i o -&gt; IO r: An application-defined action
                            whose scope defines the client's lifetime
</li></ul></div></div><div class="top"><p class="src"><a name="v:request" class="def">request</a> ::  <a href="Network-Mom-Stompl-Patterns-Basic.html#t:ClientA">ClientA</a> i o -&gt; Int -&gt; Type -&gt; [Header] -&gt; o -&gt; IO (Maybe (Message i))</p><div class="doc"><p>The client will send the request of type <em>o</em>
   and wait for the reply until the timeout exprires.
   The reply i