Pricing/Resolver/ResolvedTaxesCache.php
private function buildKey(TaxGroupInterface $taxGroup, CountryInterface $country, $business = false)
    {
        return sprintf('%s-%s-%s', $taxGroup->getId(), $country->getId(), (int)$business);
    }
private function buildKey(TaxGroupInterface $taxGroup, CountryInterface $country, $business = false)
    {
        return sprintf('%s-%s-%s', $taxGroup->getId(), $country->getId(), (int)$business);
    }
Builds the cache key.

@param TaxGroupInterface $taxGroup
@param CountryInterface  $country
@param bool              $business

@return string