How to use the jsii-rosetta.Rosetta function in jsii-rosetta

type: 'boolean',
      desc: 'Translate code samples on-the-fly if they can\'t be found in the samples tablet',
      default: true
    })
    .version(VERSION_DESC)
    .strict()
    .argv;

  logging.configure({ level: argv.verbose !== undefined ? argv.verbose : 0 });

  // Default to 4 threads in case of concurrency, good enough for most situations
  logging.debug('command line arguments:', argv);

  const timers = new Timers();

  const rosetta = new Rosetta({ liveConversion: argv['rosetta-translate-live'] });
  if (argv['rosetta-tablet']) {
    await rosetta.loadTabletFromFile(argv['rosetta-tablet']);
  }

  const modulesToPackage = await findJsiiModules(argv._, argv.recurse);
  logging.info(`Found ${modulesToPackage.length} modules to package`);
  if (modulesToPackage.length === 0) {
    logging.warn('Nothing to do');
    return;
  }

  if (argv.outdir) {
    for (const module of modulesToPackage) {
      module.outputDirectory = path.resolve(argv.outdir);
    }