public TimerEventDispatcher subTimer(String description) {
    return new TimerEventDispatcher(eventHandlers, description, clock, timer);
  }
Creates a new {@link TimerEventDispatcher} with its parent timer as this.

@param description a new description
@return the new {@link TimerEventDispatcher}
jib-core/src/main/java/com/google/cloud/tools/jib/builder/TimerEventDispatcher.java