mapdev\FacebookMessenger\MessengerUtils::checkArraySize PHP Метод

    public static function checkArraySize($array, $max_size)
    {
        if (count($array) > $max_size) {
            throw CouldNotCreateMessage::arrayExceedsMaximumSize($max_size);
        }
        return $array;
    }

 public function removeWhitelistedDomain(array $domains)
 {
     return $this->api->callApi('me/thread_settings', ['setting_type' => 'domain_whitelisting', 'whitelisted_domains' => MessengerUtils::checkArraySize($domains, 10), 'domain_action_type' => 'remove']);
 }