Method GetSubsetIndexing

catboost/libs/helpers/array_subset.h:931–933

might be used if fine-grained control is needed

        // might be used if fine-grained control is needed
        const TArraySubsetIndexing<TSize>* GetSubsetIndexing() const noexcept {
            return SubsetIndexing;
        }

    private:
        TArrayLike* Src;