protected override async Task UpdateAsync()
 {
     this.Member = (await meetup.GetGroupMembers(Constants.GroupId))?.FirstOrDefault(x => x.Identifier == this.MemberId);
 }
        protected override async Task UpdateAsync()
        {
            var newMembers = await meetup.GetGroupMembers(Constants.GroupId) ?? new Member[0];

            this.Members = newMembers.OrderBy(x => x.Name).ToArray();
        }