@Override
    public void getConfig(SlobroksConfig.Builder builder) {
        if (admin != null) {
            admin.getConfig(builder);
        }
    }
Prepares the model for start. The {@link VespaModel} calls
this methods after it has loaded this and all plugins have been loaded and
their initialize() methods have been called.

@param plugins All initialized plugins of the vespa model.
config-model/src/main/java/com/yahoo/config/model/ApplicationConfigProducerRoot.java