Function CheckTarget

catboost/libs/data/target.cpp:28–32

static void CheckTarget(const TVector<TSharedVector<float>>& target, ui32 objectCount) {
    for (auto i : xrange(target.size())) {
        CheckDataSize(target[i]->size(), (size_t)objectCount, "Target[" + ToString(i) + "]", false);
    }
}

static void CheckContainsOnly01s(const ITypedSequence<float>& typedSequence) {
    typedSequence.ForEach(