public function unstage(GatewayType $adapter, $stagedData, &$unstagedData)
 {
     if (Amount::is_exponent3_currency($stagedData['currency_code'])) {
         $unstagedData['amount'] = $stagedData['amount'] / 1000;
     } elseif (Amount::is_fractional_currency($stagedData['currency_code'])) {
         $unstagedData['amount'] = $stagedData['amount'] / 100;
     } else {
         $unstagedData['amount'] = $stagedData['amount'];
     }
 }