public function statusSettlement()
 {
     Veritrans_Config::$serverKey = "VT-server-tHdPoLZ5B9msOwJBt-tN7jOE";
     Veritrans_Config::$isProduction = false;
     // Use transaction_id from Pre-authorization process
     $transaction_id = '5f5e6961-1762-46a4-ae93-82cdc565eb04';
     $amount = 200000.0;
     Veritrans_VtDirect::$result = Veritrans_VtDirect::Settlement($transaction_id, $amount);
     pr($result);
 }