e message arrived in the channel</li>
</ul>
<pre class="language-"><code class="lang-go"><span class="token keyword">var</span> startTime time<span class="token punctuation">.</span>Time
<span class="token operator">...</span>
sub<span class="token punctuation">,</span> err <span class="token operator">:=</span> sc<span class="token punctuation">.</span><span class="token function">Subscribe</span><span class="token punctuation">(</span><span class="token string">&quot;foo&quot;</span><span class="token pun