public void setBoost_Histogram(ConditionOptionCall<HistogramAggregationBuilder> opLambda, OperatorCall<BsKeyMatchCA> aggsLambda) {
        setBoost_Histogram("boost", opLambda, aggsLambda);
    }

    public void setBoost_Histogram(String name, ConditionOptionCall<HistogramAggregationBuilder> opLambda,
            OperatorCall<BsKeyMatchCA> aggsLambda) {
        HistogramAggregationBuilder builder = regHistogramA(name, "boost");

    //                                                                         ===========
    public BsKeyMatchCA aggregation() {
        assertAggregationPurpose();
        return doGetConditionAggregation();
    }

    protected BsKeyMatchCA doGetConditionAggregation() {
        if (_conditionAggregation == null) {
            _conditionAggregation = createLocalCA();
        }