@Override
  public String toString() {
    return MoreObjects.toStringHelper(this)
        .add("id", getId())
        .add("title", getTitle())
        .add("description", getDescription())
        .add("timeCreated", getTimeCreated())
        .add("timeUpdated", getTimeUpdated())
        .toString();
  }
The same as https://schema.org/dateModified but of uses java.time.Instant for arbitrary granularity usage
portability-types-common/src/main/java/org/datatransferproject/types/common/models/music/MusicPlaylist.java