functionsLambda.callback((cqLambda, scoreFunctionBuilder) -> {
                BoostDocumentRuleCQ cf = new BoostDocumentRuleCQ();
                cqLambda.callback(cf);
                list.add(new FilterFunctionBuilder(cf.getQuery(), scoreFunctionBuilder));
            });
        }
        final FunctionScoreQueryBuilder builder = regFunctionScoreQ(cq.getQuery(), list);
        if (opLambda != null) {