code: protected function getRealGrossBase(Model\SaleInterface $sale): float
      {
          // Store previous cache mode
          $cache = $this->cache;
  
          // Disable cache
          $this->cache = false;
  
          // Calculate real gross base
          $base = $this->calculateSaleItems($sale)->getBase();
  
          // Restore cache mode
          $this->cache = $cache;
  
          return $base;
      }
docs: Calculates the real sale gross base amount.
  
  @param Model\SaleInterface $sale
  
  @return float
  
  @throws Exception\LogicException