span class="nf">from</span><span class="p">(</span><span class="n">tabScreen</span><span class="p">)</span>
            <span class="o">.</span><span class="nf">assemble</span><span class="p">()</span>
</code></pre>

<p><em>Why is the <code><a href="Structs/NilFactory.html">NilFactory</a></code> used here? We do not need to build anything: The <code>AccountViewController</code> will be built in the dependent <code>tabScreen</code> configuration. See the <code>tabScreen</code> configuration above.</em></p>
<