protected function get_stored_file_record($contextid, $itemid, $partial = false) {
        $filearea = document_services::COMBINED_PDF_FILEAREA;
        if ($partial) {
            $filearea = document_services::PARTIAL_PDF_FILEAREA;
        }
        return (object) [
            'contextid' => $contextid,
            'component' => 'assignfeedback_editpdf',
            'filearea' => $filearea,
            'itemid' => $itemid,
            'filepath' => '/',
            'filename' => document_services::COMBINED_PDF_FILENAME,
        ];
    }