@java.lang.Override
  public int getBboxesCount() {
    return bboxes_.size();
  }
<pre>
Bounding boxes, i.e. the rectangles over the image, that pinpoint
the found AnnotationSpecs. Given in order that matches the IDs. Each
bounding box is an array of 4 numbers `xMin`, `xMax`, `yMin`, and
`yMax`, which represent the extremal coordinates of the box. They are
relative to the image size, and the point 0,0 is in the top left
of the image.
</pre>

<code>repeated .google.protobuf.ListValue bboxes = 4;</code>
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/ImageObjectDetectionPredictionResult.java