public function slReseplanerare2Geometry($ref) {
        $url = $this->SlReseplanerare2URL.'/geometry.json';

        $params = [
            'key' => $this->slReseplanerare2key,
            'ref' => $ref
        ];

        $request = $this->client->request('GET', $url, [
            'query' => $params
        ]);

        $json = json_decode($request->getBody(), true);
        return $json;
    }