docs: private BigDecimal computeCBAComplexityAndCreateCBAItem(final BigDecimal accountCBA,
                                                              final InvoiceModelDao invoice,
                                                              final EntitySqlDaoWrapperFactory entitySqlDaoWrapperFactory,
                                                              final InternalCallContext context) throws EntityPersistenceException, InvoiceApiException {
          final InvoiceItemModelDao cbaItem = computeCBAComplexity(invoice, accountCBA, entitySqlDaoWrapperFactory, context);
          if (cbaItem != null) {
              createCBAItem(invoice, cbaItem, entitySqlDaoWrapperFactory, context);
              return accountCBA.add(cbaItem.getAmount());
          } else {
              return accountCBA;
          }
      }