code: @Override
    public Long waitReplicas(final int replicas, final long timeout) {
      checkIsInMultiOrPipeline();
      client.waitReplicas(replicas, timeout);
      return client.getIntegerReply();
    }
docs: Syncrhonous replication of Redis as described here: http://antirez.com/news/66 Since Java
  Object class has implemented "wait" method, we cannot use it, so I had to change the name of
  the method. Sorry :S