$params = array('date_preset' => InsightsPresets::LAST_30_DAYS, 'filtering' => array(array('field' => 'adgroup.adlabels', 'operator' => 'ANY', 'value' => array($label_name))));
$fields = array(InsightsFields::CLICKS, InsightsFields::CPC, InsightsFields::TOTAL_ACTIONS);
$stats = $account->getInsights($fields, $params);
// _DOC close [ADACCOUNT_GET_INSIGHTS_ADLABEL]
$label->delete();
unset($label);
// _DOC open [ADACCOUNT_GET_TARGETING_DESCRIPTION]
// _DOC vars [ad_account_id:s]
// use FacebookAds\Object\AdAccount;
// use FacebookAds\Object\Fields\TargetingSpecsFields;
// use FacebookAds\Object\TargetingSpecs;
$account = new AdAccount($ad_account_id);
$targeting = new TargetingSpecs();
$targeting->setData(array(TargetingSpecsFields::GEO_LOCATIONS => array('countries' => array('US', 'JP')), TargetingSpecsFields::GENDERS => array(1), TargetingSpecsFields::AGE_MIN => 20, TargetingSpecsFields::AGE_MAX => 24));
$params = array('targeting_spec' => $targeting->exportData());
$targeting_description = $account->getTargetingDescription(array(), $params);
// Output targeting description
foreach ($targeting_description->targetingsentencelines as $description) {
    echo $description['content'] . PHP_EOL;
    foreach ($description['children'] as $child) {
        echo "\t" . $child . PHP_EOL;
    }
}
// _DOC close [ADACCOUNT_GET_TARGETING_DESCRIPTION]
unset($account);
$creative_spec = array(AdCreativeFields::OBJECT_STORY_ID => $post_id);
$format = AdFormats::DESKTOP_FEED_STANDARD;
// _DOC open [ADACCOUNT_GET_PREVIEWS]
// _DOC vars [ad_account_id:s, creative_spec, format:s]
// use FacebookAds\Object\AdAccount;
// use FacebookAds\Object\Fields\AdPreviewFields;