return sparse_index_vector.AsInt32Vector()->values;
  } else if (sparse_index_vector.type ==
             tflite::SparseIndexVector_Uint16Vector) {
    const auto& inputs = sparse_index_vector.AsUint16Vector()->values;
    std::vector<int32_t> outputs(inputs.size());
    std::transform(inputs.begin(), inputs.end(), outputs.begin(),
                   [](auto x) { return static_cast<int32_t>(x); });
    return outputs;