code: def backward(ctx, grad):
      shape = ctx.shape
      return _NewEmptyTensorOp.apply(grad, shape), None
  
file_path: gluon-cv/gluoncv/torch/nn/deform_conv.py
imports: import torch
  from torch import nn
  from torch.nn.modules.utils import _pair
  from torchvision.ops import deform_conv2d
label_desc: Use image node_id 2 for calling the _NewEmptyTensorOp obj's underlying member method code with example usage: obj.backward(ctx, grad) and returns: _NewEmptyTensorOp,  None