"test-param-element"><span class="type-annotation">E</span> <span class="parameter-name">element</span></span>)</span>)
                      &#8594;
                      <span class="returntype"><a href="dart-collection/Plugin-class.html">Plugin</a></span>
                  </span>
              </dt>
              <dd>
                  <div>
                    <span class="is-inherited">inherited</span>
                  </div>
                  Returns the single element that satisfies <code class="pr