message: Copybara fix for proto2 namespace in object detection stage
diff: @@ -174,7 +174,7 @@ TfLiteStatus PopulateGroundTruth(
  std::string proto_str((std::istreambuf_iterator<char>(t)),
  std::istreambuf_iterator<char>());
  ObjectDetectionGroundTruth ground_truth_proto;
  - proto2::TextFormat::ParseFromString(proto_str, &ground_truth_proto);
  + google::protobuf::TextFormat::ParseFromString(proto_str, &ground_truth_proto);
  for (auto image_ground_truth : ground_truth_proto.detection_results()) {
  (*ground_truth_mapping)[image_ground_truth.image_name()] =
  