class DecayRpcScheduler implements RpcScheduler,
    DecayRpcSchedulerMXBean, MetricsSource {

  public double getDecayFactor() { return decayFactor; @VisibleForTesting
  public double getDecayFactor() { return decayFactor; }

  public double getDecayFactor() { return decayFactor; public  DecayRpcScheduler(int numLevels, String ns, Configuration conf);

}