public function getClient(array $options = [])
    {
        if ($this->client) {
            return $this->client;
        }

        $this->client = new Client(
            [
                'base_url' => $this->baseUrl,
                'defaults' => [
                    'headers' => [
                        'Authorization' => 'Bearer ' . $this->accessToken,
                    ]
                ]
            ]
        );

        return $this->client;
    }