public void Load(IConfiguration configuration)
        {
            using (new UnicornOperationContext())
            {
                var users = _userDataStore
                            .GetAll()
                            .Where(user => _userPredicate.Includes(User.FromName(user.User.UserName, false)).IsIncluded).ToArray();

                foreach (var user in users)
                {
                    DeserializeUser(user);
                }

                if (_syncConfiguration.RemoveOrphans)
                {
                    var existingOrphanUsers = UserManager.GetUsers()
                                              .GetAll()
                                              .Where(user => _userPredicate.Includes(user).IsIncluded)
                                              .Where(includedUser => !users.Any(user => user.User.UserName.Equals(includedUser.Name, StringComparison.OrdinalIgnoreCase)));

                    foreach (var orphan in existingOrphanUsers)
                    {
                        _logger.RemovedUser(orphan);
                        Membership.DeleteUser(orphan.Name);
                    }
                }
            }
        }