Dumplie\Inventory\Application\Exception\QueryException::productNotFound PHP Method

    public static function productNotFound($sku) : QueryException
    {
        return new self(sprintf("Product with SKU \"%s\" does not exists.", $sku));
    }

 /**
  * @param string $sku
  * @return Product
  * @throws QueryException
  */
 public function getBySku(string $sku) : Product
 {
     $qb = $this->connection->createQueryBuilder();
     $qb->select('*')->from('dumplie_inventory_product')->where('sku = :sku')->setParameter('sku', $sku);
     $productData = $this->connection->fetchAssoc($qb->getSQL(), $qb->getParameters());
     if (empty($productData)) {
         throw QueryException::productNotFound($sku);
     }
     return new Product($productData['sku'], $productData['price_amount'] / $productData['price_precision'], $productData['price_currency'], (bool) $productData['is_in_stock'], $this->mao->getBy([Metadata::FIELD_SKU => $productData['sku']]));
 }