public function getList(array $optionalArgs = [])
    {
        $response = $this->client->fetch(
            $this->uri,
            $optionalArgs
        );

        $calls = [];

        foreach ($response->getContent()['objects'] as $call) {
            $newCall = new Call($this->client, $call, $this->pathParams['authId'], $call['call_uuid']);

            array_push($calls, $newCall);
        }
        return
            new CallList(
                $this->client,
                $response->getContent()['meta'],
                $calls);
    }