Controller</code> in the tabs:</h4>
<pre class="highlight swift"><code>    <span class="k">let</span> <span class="nv">tabScreen</span> <span class="o">=</span> <span class="kt">SingleContainerStep</span><span class="p">(</span>
            <span class="nv">finder</span><span class="p">:</span> <span class="kt">ClassFinder</span><span class="p">(),</span>
            <span class="nv">factory</span><span class="p">:</span> <span class="kt">CompleteFactoryAssembly</span><span class="p">(</span><span class="nv