/**
* Constructs a new Stripe instance
* @param string $environment 'sandbox' or 'production'
* @param mixed $merchant_attr Account ID, ElggEntity or entity guid of the merchant on whose behalf the requests are to be made
* @return StripeClient
*/
function __construct($environment = null, $merchant_attr = null)
{
StripeClientFactory::stageEnvironment($environment);
$merchant = new StripeMerchant($merchant_attr);
$access_token = $merchant->getAccessToken();
$this->setAccessToken($access_token);
}
