wiki.techinc.nl/includes/diff/Hook/ArticleContentOnDiffHook.php

<?php

namespace MediaWiki\Diff\Hook;

use DifferenceEngine;
use OutputPage;

/**
 * @stable for implementation
 * @ingroup Hooks
 */
interface ArticleContentOnDiffHook {
	/**
	 * This hook is called before showing the article content below a diff. Use
	 * this hook to change the content in this area or how it is loaded.
	 *
	 * @since 1.35
	 *
	 * @param DifferenceEngine $diffEngine
	 * @param OutputPage $output
	 * @return bool|void True or no return value to continue or false to abort
	 */
	public function onArticleContentOnDiff( $diffEngine, $output );
}