code: def inv_transform(self, image: Tensor) -> Tensor:
      image.mul_(self.std).add_(self.mean)
      return image
  
imports: import torch
  from numpy import ndarray
  from torch import Tensor
  from typing import Tuple
  from collections import namedtuple
label_desc: Use image node_id 3 for calling the NormalizeTensor obj's underlying member method code with example usage: obj.inv_transform(image) and returns: image