static SummaryConfig.Classes.Fields.Elements.Builder convertElementsSelector(SummaryElementsSelector elementsSelector) {
        var builder = new SummaryConfig.Classes.Fields.Elements.Builder();
        switch (elementsSelector.getSelect()) {
            case ALL -> builder.select(SummaryConfig.Classes.Fields.Elements.Select.ALL);
            case BY_MATCH -> builder.select(SummaryConfig.Classes.Fields.Elements.Select.BY_MATCH);
            case BY_SUMMARY_FEATURE -> builder.select(SummaryConfig.Classes.Fields.Elements.Select.BY_SUMMARY_FEATURE);
        }
        builder.summary_feature(elementsSelector.getSummaryFeature());
        return builder;
    }
Returns the command name of a transform
config-model/src/main/java/com/yahoo/schema/derived/SummaryClass.java