pre class="highlight swift"><code><span class="kd">public</span> <span class="nf">init</span><span class="p">(</span><span class="nv">top</span><span class="p">:</span> <span class="kt"><a href="../../Structs/Grid/LabelParameters.html">LabelParameters</a></span><span class="p">?</span> <span class="o">=</span> <span class="kc">nil</span><span class="p">,</span>
            <span class="nv">bottom</span><span class="p">:</span> <span class="kt"><a href="../../Structs/Grid/LabelParameters.html">LabelParameter