e><a href="../Classes/ObjectPublisher.html">ObjectPublisher</a></code> changes and exposes an <code>Optional&lt;ObjectSnapshot&lt;O&gt;&gt;</code> value.</p>
<pre class="highlight swift"><code><span class="kd">@ObjectState</span>
<span class="k">var</span> <span class="nv">person</span><span class="p">:</span> <span class="kt">ObjectSnapshot</span><span class="o">&lt;</span><span class="kt">Person</span><span class="o">&gt;</span><span class="p">?</span>

<span class="nf">init</span><span class="p">(</span>