How to use the metro/src/Server.DEFAULT_BUNDLE_OPTIONS function in metro

sourceMapUrl,
    dev: args.dev,
    minify: args.minify !== undefined ? args.minify : !args.dev,
    platform: args.platform,
  };

  const server = new Server(config);

  try {
    const bundle = await output.build(server, requestOpts);

    await output.save(bundle, args, logger.info);

    // Save the assets of the bundle
    const outputAssets: AssetData[] = await server.getAssets({
      ...Server.DEFAULT_BUNDLE_OPTIONS,
      ...requestOpts,
      bundleType: 'todo',
    });

    // When we're done saving bundle output and the assets, we're done.
    return await saveAssets(outputAssets, args.platform, args.assetsDest);
  } finally {
    server.end();
  }
}

const config = await loadAsync(projectRoot);
  const server = new Server(config);

  const requestOpts = {
    entryFile,
    dev: false,
    minify: false,
    platform,
  };

  let assetManifest;
  let error;
  try {
    assetManifest = await server.getAssets({
      ...Server.DEFAULT_BUNDLE_OPTIONS,
      ...requestOpts,
    });
  } catch (e) {
    error = e;
  } finally {
    server.end();
  }

  if (error) {
    throw error;
  }

  return assetManifest;
}