private function _convertCapture($request) {
        
        $parameters = array();
        $parameters['Action'] = 'Capture';
        if ($request->isSetSellerId()) {
            $parameters['SellerId'] =  $request->getSellerId();
        }
        if ($request->isSetAmazonAuthorizationId()) {
            $parameters['AmazonAuthorizationId'] =  $request->getAmazonAuthorizationId();
        }
        if ($request->isSetCaptureReferenceId()) {
            $parameters['CaptureReferenceId'] =  $request->getCaptureReferenceId();
        }
        if ($request->isSetCaptureAmount()) {
            $captureAmountcaptureRequest = $request->getCaptureAmount();
            if ($captureAmountcaptureRequest->isSetAmount()) {
                $parameters['CaptureAmount' . '.' . 'Amount'] =  $captureAmountcaptureRequest->getAmount();
            }
            if ($captureAmountcaptureRequest->isSetCurrencyCode()) {
                $parameters['CaptureAmount' . '.' . 'CurrencyCode'] =  $captureAmountcaptureRequest->getCurrencyCode();
            }
        }
        if ($request->isSetSellerCaptureNote()) {
            $parameters['SellerCaptureNote'] =  $request->getSellerCaptureNote();
        }
        if ($request->isSetSoftDescriptor()) {
            $parameters['SoftDescriptor'] =  $request->getSoftDescriptor();
        }

        return $parameters;
    }