code: async function writeTwigNamespaceFile() {
    const config = await getConfig();
    const namespaceConfigFile = await getTwigNamespaceConfig(
      process.cwd(),
      config.extraTwigNamespaces,
    );
    await writeFile(
      path.join(config.dataDir, 'twig-namespaces.bolt.json'),
      JSON.stringify(namespaceConfigFile, null, '  '),
    );
  }
docs: Write Twig Namespace File
  Creates `bolt-twig-namespaces.json` in `config.dataDir` from the Bolt Manifest. That is pulled in by [Twig Namespace plugin](https://packagist.org/packages/evanlovely/plugin-twig-namespaces) in the PL config file.
  @see getTwigNamespaceConfig;
  @return {Promise<void>}