ass="o">*&gt;</span> <span class="o">*</span><span class="n">_Nonnull</span> <span class="n">charWhitelist</span><span class="p">;</span></code></pre>

                        </div>
                        <div class="language">
                          <p class="aside-title">Swift</p>
                          <pre class="highlight swift"><code><span class="k">var</span> <span class="nv">charWhitelist</span><span class="p">:</span> <span class="kt">Set</span><span class="o">&lt;</span><span class="kt"><a