structor">LidcoreBsNode</span>.<span class="constructor">Buffer</span>.t;<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class="keyword">val</span>&nbsp;ack&nbsp;:&nbsp;<span class="constructor">Gcloud</span>.<span class="constructor">PubSub</span>.msg&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;unit<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class="keyword">val</span>&nbsp;nack&nbsp;:&nbsp;<span class="constructor">Gcloud</span>.<span class="constructor">Pub