>
          <a id="ember34750" class="ember-view" data-test-toc-link="Reopening Classes and Instances" href="/v1.12.0/object-model/reopening-classes-and-instances">
            <span class="link-text">
              Reopening Classes and Instances
            </span>
          </a>
        </li>
              <li class="toc-item toc-link ">
          <a id="ember34751" class="ember-view" data-test-toc-link="Computed Properties" href="/v1.12.0/object-model/computed-properties">
            <span class="link-