results = DelayableWriteable.referencing(InternalAggregations.from(List.of(newTerms(true))));
    }

    private StringTerms newTerms(boolean withNested) {
        List<StringTerms.Bucket> resultBuckets = new ArrayList<>(buckets);
        for (int i = 0; i < buckets; i++) {
            InternalAggregations inner = withNested ? InternalAggregations.from(List.of(newTerms(false))) : InternalAggregations.EMPTY;

            }
            for (int i = 0; i < numShards; i++) {
                aggsList.add(InternalAggregations.from(Collections.singletonList(newTerms(rand, dict, true))));
            }
        }

        private StringTerms newTerms(Random rand, BytesRef[] dict, boolean withNested) {
            Set<BytesRef> randomTerms = new HashSet<>();
            for (int i = 0; i < topNSize; i++) {