yout.behaviors</a></li>
            <li><a href="polymer_app_layout.behaviors/EventSource-class.html">EventSource</a></li>
            <li class="self-crumb">openEvent</li>
        </ol>
        <div class="title-description">
            <h1 class="title">
                <div class="kind">constant</div> openEvent
            </h1>
            <!-- p class="subtitle">
                Static factory designed to expose <code class="prettyprint lang-dart">open</code> events to event
handlers that are not nece