ation"><a href="dart-async/FutureOr-class.html">FutureOr</a><span class="signature">&lt;<wbr><span class="type-parameter">E</span>&gt;</span></span> <span class="parameter-name">convert</span>(<span class="parameter" id="convert-param-event"><span class="type-annotation">T</span> <span class="parameter-name">event</span></span>)</span>)
            <span class="returntype parameter">&#8594; <a href="dart-async/Stream-class.html">Stream</a><span class="signature">&lt;<wbr><span class="type-parameter">E</span