public override IResponse RefreshFromConnection(ElasticClient cli)
            {
                var result = new Dictionary<string, List<string>>();
                var aliases = cli.GetAllIndexAliases();
                foreach (var a in aliases)
                {
                    if (a.Value != null && a.Value.Count > 0)
                        result.Add(a.Key, a.Value);
                }
                Aliases = result;
                IsValid = true;

                return null;
            }