private function __construct()
 {
     ClassLoader::register();
     $this->curl = new \Curl();
     $this->services = $this->loadServiceDescriptions();
 }
 public function __construct($secretKey)
 {
     \HelpScout\ClassLoader::register();
     $this->secretKey = $secretKey;
 }
 private function __construct()
 {
     ClassLoader::register();
 }