ass="p">?</span><span class="o">.</span><span class="n">presentationController</span> <span class="k">as?</span> <span class="kt">DeckSnapshotUpdater</span><span class="p">)?</span><span class="o">.</span><span class="nf">requestPresentedViewSnapshotUpdate</span><span class="p">()</span>
</code></pre>

<p>It&rsquo;s worth noting that updating the snapshot is an expensive process and should only be used if necessary, for example if you are updating your entire app&rsquo;s theme.</p>
<h2 id='apps-using-decktr