public TableRetryPolicy withRandomBackoff(Duration minSleep, Duration maxSleep) {
    Preconditions.checkNotNull(minSleep);
    Preconditions.checkNotNull(maxSleep);
    this.randomMin = minSleep;
    this.randomMax = maxSleep;
    this.backoffType = BackoffType.RANDOM;
    return this;
  }
Set the sleepTime time for the random backoff policy. The actual sleepTime time
before each attempt is randomly selected between {@code [minSleep, maxSleep]}
@param minSleep lower bound sleepTime time
@param maxSleep upper bound sleepTime time
@return this policy instance
samza-api/src/main/java/org/apache/samza/table/retry/TableRetryPolicy.java