kHB" class="def">mkHB</a> :: Int -&gt; IO <a href="Network-Mom-Stompl-Patterns-Basic.html#t:HB">HB</a></p><div class="doc"><p>Create a heartbeat controller;
   receives the heartbeat in milliseconds.
</p></div></div><div class="doc"><p>The following example shows
     how to use the registration functions and heartbeats
     together with a server:
</p><pre> -- The definition of the variables
 -- reg, jn, rn, tmo
 -- is out of the scope of this listing;
 -- their data type and meaning 
 -- can be inferred f