class_docstr: Abstract base class for training defences.
docstr: Return the classifier trained via adversarial training.
  
  :return: The classifier.
code: def get_classifier(self) -> "CLASSIFIER_LOSS_GRADIENTS_TYPE":
      """
      Return the classifier trained via adversarial training.
  
      :return: The classifier.
      """
      return self._classifier
  
file_path: adversarial-robustness-toolbox/art/defences/trainer/trainer.py
imports: from __future__ import absolute_import, division, print_function, unicode_literals
  import abc
  from typing import TYPE_CHECKING
  import numpy
label_desc: Use image node_id 4 for calling the Trainer obj's underlying member method code with example usage: obj.get_classifier() and returns: self