code: func NewRawAsciiClient(shard int, channel io.ReadWriter) ClientShard {
  	return &RawAsciiClient{
  		shard:      shard,
  		channel:    channel,
  		validState: true,
  		writer:     bufio.NewWriter(channel),
  		reader:     bufio.NewReader(channel),
  	}
  }
docs: // This creates a new memcache RawAsciiClient.