writeRecords example

'config' => $document->getConfig(),
                    'deepLinkCode' => $deepLinkCode,
                    'referencedDocumentId' => $operation->getReferencedDocumentId(),
                ];

                $result->addSuccess(new DocumentIdStruct($id, $deepLinkCode, $mediaId));
            } catch (\Throwable $exception) {
                $result->addError($orderId, $exception);
            }
        }

        $this->writeRecords($records, $context);

        return $result;
    }

    public function upload(string $documentId, Context $context, Request $uploadedFileRequest): DocumentIdStruct
    {
        /** @var DocumentEntity $document */
        $document = $this->documentRepository->search(new Criteria([$documentId]), $context)->first();

        if (!($document instanceof DocumentEntity)) {
            throw DocumentException::documentNotFound($documentId);
        }