The page has been marked as outdated. This generally means that the page was written for either a previous version of the package or a previous version of the underlying API(s).
Getting a list of Analytics accounts
A Google account may be associated with multiple Analytics accounts. You can get a list of them as:
AnalyticsAccountsResponse response = analytics.GetAccounts();
foreach (AnalyticsAccount account in response.Items) {
string accountId = account.Id;
string accountName = account.Name;
}