message: Speedup fix for the push_back function
  Reserve the space in advance for speedup
diff: @@ -222,6 +222,7 @@ Offset<Vector<Offset<Tensor>>> ExportTensors(
  std::vector<int> shape;
  if (array.has_shape()) {
  + shape.reserve(array.shape().dims().size());
  for (const auto& d : array.shape().dims()) {
  shape.push_back(d);
  }
  