ocumentation.org/packages/curl/topics/nslookup">curl::has_internet()</a></code>), use this function as <code>.x</code>.</p>
<div class="sourceCode" id="cb28"><pre class="sourceCode r"><code class="sourceCode r"><a class="sourceLine" id="cb28-1" title="1"><span class="kw"><a href="reference/messagehandler.html">stop_if</a></span>(<span class="dt">.x =</span> curl<span class="op">::</span><span class="kw"><a href="http://www.rdocumentation.org/packages/curl/topics/nslookup">has_internet</a></span>(), <span cl