code: def setUp(self):
      self.link = YOLOv2Tiny(n_fg_class=self.n_fg_class)
      self.insize = 416
      self.n_bbox = 13 * 13 * 5
  
file_path: chainercv/tests/experimental_tests/links_tests/model_tests/yolo_tests/test_yolo_v2_tiny.py
imports: import numpy
  import unittest
  import chainer
  from chainer import testing
  from chainer.testing import attr
  from chainercv.experimental.links import YOLOv2Tiny
label_desc: Use image node_id 1 for calling the TestYOLOv2Tiny obj's underlying member method code with example usage: obj.setUp() without return types