`coremltools` docs - Xcode Model Preview Type for Object Detection?

## ❓Is there an Xcode Model Preview Type for Object Detection?

Hi there, I'm going through the `coremltools` docs for exporting PyTorch models.

I've found that there's an Xcode Model Preview Type for Segmentation (see below).

But I'm wondering if there's a similar setup for object detection?

The docs I'm referring to are here: https://apple.github.io/coremltools/docs-guides/source/xcode-model-preview-types.html

Sample code for image segmentation model (from the docs):

```python
# load the model
mlmodel = ct.models.MLModel("SegmentationModel_no_metadata.mlpackage")

labels_json = {"labels": ["background", "aeroplane", "bicycle", "bird", "board", "bottle", "bus", "car", "cat", "chair", "cow", "diningTable", "dog", "horse", "motorbike", "person", "pottedPlant", "sheep", "sofa", "train", "tvOrMonitor"]}

mlmodel.user_defined_metadata["com.apple.coreml.model.preview.type"] = "imageSegmenter"
mlmodel.user_defined_metadata['com.apple.coreml.model.preview.params'] = json.dumps(labels_json)

mlmodel.save("SegmentationModel_with_metadata.mlpackage")
```

Is there a `"com.apple.coreml.model.preview.type"` such as this but for "imageDetector" or "objectDetector"?

---

**Update:** I found a similar post on the Apple Developer forums but it is unanswered: https://forums.developer.apple.com/forums/thread/718154

Will continue to update this post if I find out more.

Start with the Xcode Model Preview Types documentation page and its imageSegmenter metadata example, then check the linked Apple Developer forum discussion. Confirm whether an object-detection preview type and required parameters exist; done means documenting the confirmed metadata or clearly stating that no supported setup is available.

Written by the indexing model from the issue text.