code: def test_anchor_target_creator_cpu(self):
      self.check_anchor_target_creator(
          self.anchor_target_layer,
          self.bbox,
          self.anchor,
          self.img_size,
      )
  
file_path: chainercv/tests/links_tests/model_tests/faster_rcnn_tests/utils_tests/test_anchor_target_creator.py
imports: import unittest
  import numpy
  from chainer.backends import cuda
  from chainer import testing
  from chainer.testing import attr
  from chainer import utils
  from chainercv.links.model.faster_rcnn import AnchorTargetCreator
  from chainercv.utils import generate_random_bbox
label_desc: Use image node_id 3 for calling the TestAnchorTargetCreator obj's underlying member method code with example usage: obj.test_anchor_target_creator_cpu() without return types