leWhere-param-test"><span class="type-annotation"><a href="dart-core/bool-class.html">bool</a></span> <span class="parameter-name">test</span>(<span class="parameter" id="test-param-element"><span class="type-annotation">E</span> <span class="parameter-name">element</span></span>), {</span> <span class="parameter" id="singleWhere-param-orElse"><span class="type-annotation">E</span> <span class="parameter-name">orElse</span>()</span> })
            <span class="returntype parameter">&#8594; E</span>
        