_ban_plugin()</a></li>
<li><a class="reference internal" href="#create-ut-pex-plugin" id="toc-entry-45">create_ut_pex_plugin()</a></li>
<li><a class="reference internal" href="#create-ut-metadata-plugin" id="toc-entry-46">create_ut_metadata_plugin()</a></li>
</ul>
</div>
<p>libtorrent has a <a class="reference external" href="reference-Plugins.html#plugin">plugin</a> interface for implementing extensions to the protocol.
These can be general extensions for transferring metadata or peer exchange
extensions, 