Probably more idiomatic to not create the variable, but not a big deal.

```scala
CuratorFrameworkFactory.builder()
            .connectionTimeoutMs(config.zooKeeperTimeout().toInt)
            .canBeReadOnly(true)
            .connectString(validateZkServers())
            .retryPolicy(new ExponentialBackoffRetry(1000, 100))
            .build()
```