class_docstr: This class tests the Detector Classifier.
class_docstr_tok: ["This","class","tests","the","Detector","Classifier","."]
code: def test_repr(self):
      repr_ = repr(self.detector_classifier)
      self.assertIn(
          "art.estimators.classification.detector_classifier.DetectorClassifier",
          repr_,
      )
      self.assertIn(
          "preprocessing=StandardisationMeanStd(mean=0.0, std=1.0, apply_fit=True, apply_predict=True)",
          repr_,
      )
  
imports: from __future__ import absolute_import, division, print_function, unicode_literals
  import os
  import tempfile
  import logging
  import unittest
  import numpy
  import torch
  import torch.nn
  import torch.optim
  from art.estimators.classification.pytorch import PyTorchClassifier
  from art.estimators.classification.detector_classifier import DetectorClassifier
  from tests.utils import TestBase, get_image_classifier_pt
label_desc: Use image node_id 12 for calling the TestDetectorClassifier obj's underlying member method code with example usage: obj.test_repr() without return types