public static function updateContact($optParams=null)
    {
        self::checkFind();
        
        // Default opt helper
        $optParams = (is_null($optParams))
            ? ['updatePersonFields' => self::$personFields] 
            : $optParams;
        
        return self::getService()->people->updateContact(self::$resourceName, self::getPerson(), $optParams);
    }