erence external" href="reference-Plugins.html#plugin">plugin</a> expects this to be called, make sure to include the flag
<tt class="docutils literal">alert_feature</tt> in the return value from <a class="reference external" href="reference-Plugins.html#implemented_features()">implemented_features()</a>.</p>
<a name="on_unknown_torrent()"></a><span class="report-issue">[<a href="http://github.com/arvidn/libtorrent/issues/new?title=docs:plugin%3A%3A%5Bon_unknown_torrent%28%29%5D&labels=documentation&body=Doc