code: func New(
  	domain string,
  	servers []string,
  	options map[string]string,
  	fatalErrorCb kvdb.FatalErrorCB,
  ) (kvdb.Kvdb, error) {
  	return newClient(domain, servers, options, fatalErrorCb)
  }
docs: // New constructs a new kvdb.Kvdb with zookeeper implementation