'link:json_url', 'SummitId' => 'summit_id:json_int', 'OwnerId' => 'summit_id:json_int', 'Cid' => 'cid:json_string', ]; /** * @param null $expand * @param array $fields * @param array $relations * @param array $params * @return array */ public function serialize($expand = null, array $fields = [], array $relations = [], array $params = []) { $link = $this->object; if (!$link instanceof PersonalCalendarShareInfo) return []; $values = parent::serialize($expand, $fields, $relations, $params); return $values; } }