- [Go client docs](https://www.elastic.co/docs/reference/elasticsearch/clients/go/typed-api)
- [ES API docs](https://www.elastic.co/docs/api/doc/elasticsearch/operation/operation-indices-get)

- Fix index names custom completion
- add cluster default <name> which would add a flag to the config, so that no -C is needed subsequently
- add `cluster stats` from `/_cluster/stats` like mem, procs, open files, num indices, shards etc
- add version[s] to `cluster status`