public void SerialPut(byte[] key, byte[] value, int ttl,
bool expected_result, int op) {
Hashtable ht = new Hashtable();
ht.Add("key", key);
ht.Add("value", value);
ht.Add("ttl", ttl);
ht.Add("result", expected_result);
ht.Add("op", op);
SerialPut((object) ht);
}