> <span class="kt">SchemeType</span> <span class="p">:</span> <span class="kt">Equatable</span><span class="p">,</span> <span class="kt">RawRepresentable</span></code></pre>

                        </div>
                      </div>
                    </section>
                  </div>
                </li>
                <li class="item">
                  <div>
                    <code>
                    <a name="/c:@E@PiALanguage"></a>
                    <a name="//apple_ref/objc/Enum/PiALanguag