
</div>
            
</div>
          </li>
          <li class="toc-item toc-group" aria-expanded="true">
            <div id="ember28058" class="cp-Panel cp-is-open ember-view">
              <a id="ember28059" class="ember-view active section-title" data-test-toc-link="Concepts" href="/v1.12.0/concepts">
                <span class="link-text">
                  Concepts
                </span>
              </a>
              <div id="ember28060" class="cp-Panel-body cp-is-open ember-view">
    <div cla