public function tuneMount($name, array $body = [])
    {
        if (empty($body)) {
            return $this->client->get('/v1/sys/mounts/' . $name . '/tune');
        }

        $params = [
            'body' => json_encode(OptionsResolver::resolve($body, ['default_lease_ttl', 'max_lease_ttl']))
        ];

        return $this->client->post('/v1/sys/mounts/' . $name . '/tune', $params);
    }