Method IsDefined

catboost/libs/data/objects.h:107–113

        }

        bool IsDefined() const {
            if (StoreStringColumns) {
                return GetMaybeStringData().Defined();
            } else {
                return GetMaybeNumData().Defined();
            }
        }

        const TMaybeData<TVector<TId>>& GetMaybeNumData() const {
            CB_ENSURE(!StoreStringColumns);