code: public BatchOptions jitterDuration(final int jitterDuration) {
      BatchOptions clone = getClone();
      clone.jitterDuration = jitterDuration;
      return clone;
    }
docs: Jitters the batch flush interval by a random amount. This is primarily to avoid
  large write spikes for users running a large number of client instances.
  ie, a jitter of 5s and flush duration 10s means flushes will happen every 10-15s.
  
  @param jitterDuration (milliseconds)
  @return the BatchOptions instance to be able to use it in a fluent manner.