de-title-objc">Swift</p>
                          <pre class="highlight"><code><span class="n">open</span> <span class="kd">func</span> <span class="nf">makeMutatorLayout</span><span class="p">(</span><span class="nv">mutator</span><span class="p">:</span> <span class="kt"><a href="../Protocols/Mutator.html">Mutator</a></span><span class="p">,</span> <span class="nv">engine</span><span class="p">:</span> <span class="kt"><a href="../Classes/LayoutEngine.html">LayoutEngine</a></span><span class="p">)</span>