code: def resnet_madry():
      aparams = resnet_fgsm()
      aparams.attack = "madry"
      aparams.add_hparam("nb_iter", 40)
      aparams.add_hparam("eps_iter", 1.0)
      return aparams
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  from tensor2tensor.layers import common_hparams
  from tensor2tensor.layers import common_layers
  from tensor2tensor.utils import hparam
  from tensor2tensor.utils import registry
  from tensor2tensor.utils import t2t_model
  import tensorflow.compat.v1
  from tensorflow.compat.v1 import estimator
label_desc: Use image node_id 29 for calling a global function with example usage: resnet_madry() and returns: aparams