RestService::validateDocumentId: Bitrix method

      
<?php 
//  Bitrix\Bizproc\RestService :: validateDocumentId()
//  /dist/bitrix/modules/bizproc/lib/restservice.php:1556

    private static function validateDocumentId($documentId)
    {
        $type = null;
        if ($documentId && is_array($documentId))
        {
            try
            {
                $runtime = \CBPRuntime::getRuntime();
                $runtime->startRuntime();
                /** @var \CBPDocumentService $documentService */
                $documentService = $runtime->getService('DocumentService');
                $documentId = $documentService->normalizeDocumentId($documentId);
                $type = $documentService->getDocumentType($documentId);
            }
            catch (\CBPArgumentNullException $e) {}
        }

        if (!$type)
        {
            throw new RestException('Wrong DOCUMENT_ID!');
        }

        return $documentId;
    }