 preparation events.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>listener</code> - An listener to be notified of media period preparation events. If a listener is
     set, <a href="#maybeThrowPrepareError()"><code>maybeThrowPrepareError()</code></a> will not throw but will instead pass the first
     preparation error (if any) to the listener.</dd>
</dl>
</li>
</ul>
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