class="name"><a href="dart-collection/ListMixin/contains.html">contains</a></span><span class="signature">(<wbr><span class="parameter" id="contains-param-element"><span class="type-annotation"><a href="dart-core/Object-class.html">Object</a></span> <span class="parameter-name">element</span></span>)
            <span class="returntype parameter">&#8594; <a href="dart-core/bool-class.html">bool</a></span>
          </span>
                  </dt>
        <dd class="inherited">
          Returns true if the 