...    {
        ...        "boxes": torch.tensor([
        ...             [296.55, 93.96, 314.97, 152.79],
        ...             [298.55, 98.96, 314.97, 151.79]]),
        ...        "labels": torch.tensor([4, 5]),
        ...    }
        ... ]
        >>> target = [
        ...    {
        ...        "boxes": torch.tensor([
        ...               [300.00, 100.00, 315.00, 150.00],
        ...               [300.00, 100.00, 315.00, 150.00]
        ...        ]),
        ...        "labels": torch.tensor([4, 5]),
        ...    }
        ... ]
        >>> metric = IntersectionOverUnion(class_metrics=True)
        >>> metric(preds, target)
        {'iou': tensor(0.7756), 'iou/cl_4': tensor(0.6898), 'iou/cl_5': tensor(0.8614)}

    Raises:
        ModuleNotFoundError:
            If torchvision is not installed with version 0.8.0 or newer.

    FÚ