public function updateAdGroupRequest($ad_group_id, $campaign_id, $update_ad_group_request)
    {
        // Verify the required parameter 'ad_group_id' is set.
        if ($ad_group_id === null || (\is_array($ad_group_id) && count($ad_group_id) === 0)) {
            throw new \InvalidArgumentException('Missing the required parameter $ad_group_id when calling updateAdGroup');