code: def box_xyxy_to_cxcywh(x: Tensor):
      x0, y0, x1, y1 = x.unbind(-1)
      b = [(x0 + x1) / 2, (y0 + y1) / 2, (x1 - x0), (y1 - y0)]
      return torch.stack(b, dim=-1)
  
imports: import torch
  from torch import Tensor
  from torchvision.ops.boxes import box_area
label_desc: Use image node_id 2 for calling a global function with example usage: box_xyxy_to_cxcywh(x) and returns: torch