CECCalendar::GetHidden

static function GetHidden($userId)
{
	$res = array();
	if (class_exists('CUserOptions'))
	{
		$str = CUserOptions::GetOption("intranet", "ec_hidden_calendars", false, $userId);
		if ($str !== false)
			$res = unserialize($str, ["allowed_classes" => false]);
	}
	return $res;
}