in src/codec/memcache.rs [42:51]
fn set(rng: &mut SmallRng, keyspace: &Keyspace, buf: &mut Session) {
let key = keyspace.generate_key(rng);
let value = keyspace.generate_value(rng).unwrap_or_else(|| b"".to_vec());
let ttl = keyspace.ttl();
let _ = buf.write_all(b"set ");
let _ = buf.write_all(&key);
let _ = buf.write_all(format!(" 0 {} {}\r\n", ttl, value.len()).as_bytes());
let _ = buf.write_all(&value);
let _ = buf.write_all(b"\r\n");
}