ng object.  It&rsquo;s purpose is to wake up any
&quot;pseudo-thread&quot; (that is, any a-sync or compose-a-sync block) waiting
in meeting-send or meeting-receive by causing either procedure to
return with a &rsquo;stop-iteration value.
</p>
<p>Where that is not necessary (say, the receiver already knows how many
items are to be sent), then this procedure does not need to be
applied.  It is not needed in order to release resources.
</p>
<p>This procedure is first available in version 0.15 of this library.
