code: function formatWeekDataAsModule(weekData) {
    const date = new Date();
    const { firstDay, weekendEnd, weekendStart } = weekData;
    const transformed = {
      firstDay: transformWeekDays(firstDay),
      weekendEnd: transformWeekDays(weekendEnd),
      weekendStart: transformWeekDays(weekendStart)
    };
    const formatted = JSON.stringify(transformed, null, 2);
    const js =
  `// Generated at ${date}
  // from https://github.com/unicode-cldr/cldr-core/blob/master/supplemental/weekData.json
  const weekData = ${formatted};
  export default weekData;
  `;
    return js;
  }
docs: Extract the week data we care about and format it as an ES6 module.