docs: public static List<Item> toItemList(List<Map<String, AttributeValue>> items) {
          if (items == null) {
              return Collections.emptyList();
          }
          List<Item> result = new ArrayList<Item>(items.size());
          for (Map<String, AttributeValue> item : items) {
              result.add(toItem(item));
          }
          return result;
      }