code: protected function generateSourceFromChildren()
      {
          $i = 1;
          $children = array();
          foreach ($this->children as $child) {
              $childValue = Yaml::parse($child->getSource());
              if (is_array($childValue) && array_key_exists("type", $childValue)) {
                  $childValue["type"] = $child->getType();
              }
              $children['item' . $i] = $childValue;
              $i++;
          }
  
          $source = array(
              "children" => $children,
          );
  
          if (!empty($this->tags)) {
              $source["tags"] = $this->tags;
          }
          $source["type"] = $this->type;
  
          return $source;
      }
docs: Generates the source from the block children
  
  @return array