an><span class="p">.</span><span class="nx">defineProperty</span><span class="p">(</span><span class="nx">klass</span><span class="p">.</span><span class="nx">prototype</span><span class="p">,</span> <span class="nx">name</span><span class="p">,</span> <span class="p">{</span>
        <span class="nx">get</span><span class="o">:</span> <span class="nx">options</span><span class="p">.</span><span class="nx">get</span><span class="p">,</span>
        <span class="nx">set</span><span class="o">:</span> <span c