preds: panoptic detection of shape ``[batch, *spatial_dims, 2]`` containing
                the pair ``(category_id, instance_id)`` for each point.
                If the ``category_id`` refer to a stuff, the instance_id is ignored.

            target: ground truth of shape ``[batch, *spatial_dims, 2]`` containing
                the pair ``(category_id, instance_id)`` for each pixel of the image.
                If the ``category_id`` refer to a stuff, the instance_id is ignored.

        Raises:
            TypeError:
                If ``preds`` or ``target`` is not an ``torch.Tensor``.
            ValueError:
                If ``preds`` and ``target`` have different shape.
            ValueError:
                If ``preds`` has less than 3 dimensions.
            ValueError:
                If the final dimension of ``preds`` has size != 2.

        TNŠ