concatenateStyles example

$styleFiles = $resolvedFiles[ThemeFileResolver::STYLE_FILES];
        } catch (\Throwable $e) {
            throw new ThemeCompileException(
                $themeConfig->getName() ?? '',
                'Files could not be resolved with error: ' . $e->getMessage(),
                $e
            );
        }

        try {
            $concatenatedStyles = $this->concatenateStyles(
                $styleFiles,
                $themeConfig,
                $salesChannelId
            );
        } catch (\Throwable $e) {
            throw new ThemeCompileException(
                $themeConfig->getName() ?? '',
                'Error while trying to concatenate Styles: ' . $e->getMessage(),
                $e
            );
        }