public function __construct($access_key, $secret_key, $http_api)
{
parent::__construct($access_key, $secret_key, $http_api);
$this->cached_methods = array('DescribeDomains', 'DescribeServiceAccessPolicies', 'DescribeIndexFields');
$this->clear_cache_methods = array('CreateDomain' => array('DescribeDomains', 'DescribeServiceAccessPolicies'), 'UpdateServiceAccessPolicies' => array('DescribeServiceAccessPolicies'), 'DefineIndexField' => array('DescribeIndexFields'));
}
