isValidFile example

$this->createFile($productExport, $context, $behavior);
        }
    }

    private function createFile(
        ProductExportEntity $productExport,
        SalesChannelContext $context,
        ExportBehavior $exportBehavior
    ): void {
        $filePath = $this->productExportFileHandler->getFilePath($productExport);

        if ($this->productExportFileHandler->isValidFile(
            $filePath,
            $exportBehavior,
            $productExport
        )) {
            return;
        }
        $result = $this->productExportGenerator->generate($productExport, $exportBehavior);
        if (!$result instanceof ProductExportResult) {
            $exportNotGeneratedException = new ExportNotGeneratedException();
            $this->logException($context->getContext(), $exportNotGeneratedException);