code: public function lists($type, $offset = 0, $count = 20)
      {
          $params = [
              'type' => $type,
              'offset' => intval($offset),
              'count' => min(20, $count),
          ];
  
          return $this->parseJSON('json', [self::API_LISTS, $params]);
      }
docs: List materials.
  
  example:
  
  {
  "total_count": TOTAL_COUNT,
  "item_count": ITEM_COUNT,
  "item": [{
  "media_id": MEDIA_ID,
  "name": NAME,
  "update_time": UPDATE_TIME
  },
  // more...
  ]
  }
  
  @param string $type
  @param int    $offset
  @param int    $count
  
  @return array