code: public function buildCondition(array $configuration, IMetaModel $metaModel)
      {
          $children = [];
          if (!empty($configuration['children'])) {
              foreach ($configuration['children'] as $child) {
                  $children[] = $this->convertCondition($child, $metaModel);
              }
          }
  
          return $this->createCondition($children);
      }
docs: {@inheritDoc}