-name">onError</span>, {</span> <span class="parameter" id="handleError-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-error"><span class="parameter-name">error</span></span>)</span> })
            <span class="returntype parameter">&#8594; <a href="dart-async/Stream-class.html">Stream</a><span class="signature">&lt;<a href="dart-core/List-class.html">List</a><span class="signature"