setAvailableCombinations example

            $product->setCreatedAt(null);
            $product->setUpdatedAt(null);

            $product->setReleaseDate(null);
            $product->setPrices(null);
            $product->setPriceRules(null);
            $product->setCheapestPriceRule(null);
            $product->setCheapestPrice(null);
            $product->setCheapestUnitPrice(null);
            $product->setAvailableCombinations(null);
            $product->setFullConfiguration(null);
            $product->resetStates();

            if (!$this->isValid($shop, $product)) {
                continue;
            }
            $result[$number] = $product;
        }

        return $result;
    }