code: public void slexpire(final byte[] keyspace, final byte[] uid, long expireMillis) {
          sendCommand(Command.S3EXPIRE, keyspace, uid, RedisProtocol.toByteArray(expireMillis));
      }
docs: Slexpire.
  
  @param keyspace     the keyspace
  @param uid          the uid
  @param expireMillis the expire millis