code: def __call__(self, img):
      padding = self.get_params(img, self.input_size)
      img = F.pad(img, padding, self.fill)
      return img
  
imports: import math
  import numbers
  import random
  import warnings
  from typing import List, Sequence, Tuple, Union
  import torch
  import torchvision.transforms.functional
  from PIL import Image
  import numpy
label_desc: Use image node_id 3 for calling the RandomPad obj's underlying member method code with example usage: obj.__call__(img) and returns: img