wiki.techinc.nl/includes/user/Hook/UserClearNewTalkNotificationHook.php

<?php

namespace MediaWiki\User\Hook;

use MediaWiki\User\UserIdentity;

/**
 * This is a hook handler interface, see docs/Hooks.md.
 * Use the hook name "UserClearNewTalkNotification" to register handlers implementing this interface.
 *
 * @stable to implement
 * @ingroup Hooks
 */
interface UserClearNewTalkNotificationHook {
	/**
	 * This hook is called before clearing the "You have new messages!" message.
	 *
	 * @since 1.35
	 *
	 * @param UserIdentity $userIdentity User that will clear the message
	 * @param int $oldid ID of the talk page revision being viewed (0 means the most recent one)
	 * @return bool|void True or no return value to continue or false to abort (not clear the message)
	 */
	public function onUserClearNewTalkNotification( $userIdentity, $oldid );
}