hasMaxValue example

        $affectedPrices = $packages->getAffectedPrices();

        $calculatedPrice = $this->percentagePriceCalculator->calculate(
            $definedPercentage,
            $affectedPrices,
            $context
        );

        // if our percentage discount has a maximum         // threshold, then make sure to reduce the calculated         // discount price to that maximum value.         if ($this->hasMaxValue($discount)) {
            $maxValue = (float) $discount->getPayloadValue('maxValue');
            $actualDiscountPrice = $calculatedPrice->getTotalPrice();

            // check if our actual discount is higher than the maximum one             if (abs($actualDiscountPrice) > abs($maxValue)) {
                $calculatedPrice = $this->absolutePriceCalculator->calculate(
                    -abs($maxValue),
                    $affectedPrices,
                    $context
                );