const launch = player.launchCourse({
  el: "#training",
  fetch_url: "https://your-storage.com/training.zip?YOUR_FRESH_SIGNATURE",
  canonical_url: "https://your-storage.com/training.zip",
  reprocess: "force",
  user: { name: "John Doe", email: "john@example.com" }
});
launch.ready.then(result => {
  console.log(result.course_id, result.content_revision, result.previous_course_id);
});