finalizePartialProductExport example

$productExport->getSalesChannelDomain()->getLanguageId(),
            $this->languageLocaleProvider->getLocaleForLanguageId($productExport->getSalesChannelDomain()->getLanguageId()),
            $context->getContext()
        );

        $headerContent = $this->productExportRender->renderHeader($productExport, $context);
        $footerContent = $this->productExportRender->renderFooter($productExport, $context);
        $finalFilePath = $this->productExportFileHandler->getFilePath($productExport);

        $this->translator->resetInjection();

        $writeProductExportSuccessful = $this->productExportFileHandler->finalizePartialProductExport(
            $filePath,
            $finalFilePath,
            $headerContent,
            $footerContent
        );

        $this->connection->delete('sales_channel_api_context', ['token' => $contextToken]);

        if (!$writeProductExportSuccessful) {
            return;
        }