Apply transformation `pred_bboxes` to `boxes`. Args: bboxes (torch.Tensor): Basic boxes.Shape (B, N, 4) or (N, 4) pred_bboxes (torch.Tensor): Encoded boxes with shape (B, N, 4) or (N, 4) max_shape (Sequence[int] or torch.Tensor or Sequence[
(self, bboxes, pred_bboxes, max_shape=None)
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