public function __construct($url, $headers = [], \AwsInspector\Ssh\Connection $connection = null, $maxTime = 5)
{
$this->url = $url;
$this->headers = $headers;
$this->connection = is_null($connection) ? new \AwsInspector\Ssh\LocalConnection() : $connection;
$this->maxTime = $maxTime;
}