public void getConfig(ProtonConfig.Summary.Log.Compact.Builder compact) {
                        if (compression != null) {
                            compression.getConfig(compact.compression);
                        }
                    }
Class representing the tuning config used for a search cluster.
Take a look at proton.def and vespa doc for detailed explanations.

@author geirst
config-model/src/main/java/com/yahoo/vespa/model/search/Tuning.java