Braintree\PaymentMethodGateway::updateSignature PHP Метод

    public static function updateSignature()
    {
        $billingAddressSignature = AddressGateway::updateSignature();
        array_push($billingAddressSignature, ['options' => ['updateExisting']]);
        $signature = array_merge(self::baseSignature(), ['deviceSessionId', 'venmoSdkPaymentMethodCode', 'fraudMerchantId', ['billingAddress' => $billingAddressSignature]]);
        return $signature;
    }