UpdateState.php

См. документацию.

<?php
 
namespace Bitrix\Im\V2\Controller;
 
use Bitrix\Main\Engine\CurrentUser;
 
class UpdateState extends BaseController
{
    public function getStateDataAction(CurrentUser $user, ?string $siteId = null): ?array
    {
        return (new \Bitrix\Im\V2\UpdateState())->getUpdateStateData($user, $siteId);
    }
}