/**
  * Network Lists
  * 
  * List network lists.
  * Use the `slug` parameter to access a specific list.
  * 
  * **Examples**
  * 
  * Iterate over all lists.
  * 
  * ```jinja
  * {% for list in network.lists %}
  *     {{ list.title }}
  * {% endfor %}
  * ```
  * 
  * Access a specific list by id.
  * 
  * ```jinja
  * {{ network.lists({id: "example"}).title }}
  * ```
  * 
  * @see list
  * @accessor
  */
 public function lists($args = [])
 {
     NetworksModel\PodcastList::activate_network_scope();
     if (isset($args['id'])) {
         if ($list = NetworksModel\PodcastList::find_one_by_slug($args['id'])) {
             return new NetworksTemplate\PodcastList($list);
         }
     }
     $lists = [];
     foreach (NetworksModel\PodcastList::all() as $list) {
         $lists[] = new PodcastList($list);
     }
     NetworksModel\PodcastList::deactivate_network_scope();
     return $lists;
 }
 public function prepare_items()
 {
     // define column headers
     $columns = $this->get_columns();
     $hidden = array();
     $sortable = false;
     $this->_column_headers = array($columns, $hidden, $sortable);
     PodcastList::activate_network_scope();
     $items = \Podlove\Modules\Networks\Model\PodcastList::all();
     PodcastList::deactivate_network_scope();
     uasort($items, function ($a, $b) {
         return strnatcmp($a->title, $b->title);
     });
     $this->items = $items;
 }