code: def setUp(self):
      self.link = DummyFasterRCNN(
          n_anchor_base=1,
          feat_stride=16,
          n_fg_class=21,
          n_roi=1,
          min_size=self.min_size,
          max_size=self.max_size,
      )
  
imports: import numpy
  import unittest
  import chainer
  from chainer import testing
  from chainer.testing import attr
  from chainercv.utils import assert_is_detection_link
  from tests.links_tests.model_tests.faster_rcnn_tests.dummy_faster_rcnn import DummyFasterRCNN
label_desc: Use image node_id 1 for calling the TestFasterRCNNPrepare obj's underlying member method code with example usage: obj.setUp() without return types