How Can i create a Alias for a user using Google_DirectoryService ?

[silvio...@cepromat.mt.gov.br]

I'm trying this:

require_once 'google-api-php-client/src/Google_Client.php';

require_once 'google-api-php-client/src/contrib/Google_DirectoryService.php';

session_start();

$gClient = new Google_Client();

$gClient->setApplicationName('apigoogle');

$gClient->setClientId('XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX');

$gClient->setClientSecret('XXXXXXXXXXXXXXXXXXXXXXXXXXXX');

$gClient->setRedirectUri('http://localhost/oauth2callback');

$gClient->setDeveloperKey('XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX');

$directory = new Google_DirectoryService($gClient);

$Alias = new Google_Alias();

$Alias->setAlias('foif...@test.com');

$Alias->setPrimaryEmail('glpi...@test.com');

$servicoAlias = new Google_UsersAliasesServiceResource();

print $servicoAlias->insert('glpi...@test.com', $Alias);

But this don't work, the Google_UsersAliasesServiceResource class needs 4 variables of parameters, but i don't know how use, sombeboy can helpe me?

thanks