<p>Called at the beginning of the the admin <code>\XF\Admin\App</code> object startup process.</p>

<p>Callback signature:</p>
<blockquote><code><em>\XF\Admin\App</em> $app</code></blockquote>

<p>Arguments:</p>
<ol>
	<li><code><em>\XF\Admin\App</em> $app</code> - Admin App object.</li>
</ol>