val options = FirebaseVisionObjectDetectorOptions.Builder()
    .setDetectorMode(FirebaseVisionObjectDetectorOptions.SINGLE_IMAGE_MODE)
    .enableMultipleObjects()
    .enableClassification()
    .build()

 val objectDetector = FirebaseVision.getInstance().getOnDeviceObjectDetector(options)
 val image = FirebaseVisionImage.fromBitmap(bitmap)

 objectDetector.processImage(image)
        .addOnSuccessListener { detectedObjects ->
            for (obj in detectedObjects) {
                val id = obj.trackingId       // A number that identifies the object across images
                val bounds = obj.boundingBox  // The object's position in the image

                // If classification was enabled:
                val category = obj.classificationCategory
                val confidence = obj.classificationConfidence
                val entityId = obj.entityId
            }
        }
        .addOnFailureListener { e ->
            // Task failed with an exception
        }