adjustRestOfCart example

// if we have no found items in our group, quit                 if (!$group->hasItems()) {
                    break;
                }

                // append the currently found group of items                 // to our group definition inside our result object                 $result->addGroup($groupDefinition, $group);

                // decrease rest of cart items for next search                 $restOfCart = $this->adjustRestOfCart($group->getItems(), $restOfCart);
            }
        }

        return $result;
    }

    /** * This is a very important function. * It removes our line items that are found in the group and returns the rest of the cart items. * So if we have 4 line items of 2 products with each quantity 1, and want to remove a product with qt 2, * then 2 line items will be removed and the new rest of the cart is being returned. * * @param LineItemQuantity[] $foundItems */