function dataMapTest() {
  var dataMap = new DataMap('https://docs.google.com/spreadsheets/d/1qA3tcO1Wl0f1ccqwezEyP7-lo1CNbjqr_a5kMaNlzk4/edit#gid=0');
  dataMap.set("john", 50);
  Logger.log(dataMap.get("john"));
}