code: def check_loc2bbox(self, raw_bbox, bbox, expected):
      pred_raw_bbox = loc2bbox(raw_bbox, bbox)
  
      self.assertIsInstance(pred_raw_bbox, type(expected))
      np.testing.assert_equal(
          cuda.to_cpu(pred_raw_bbox), cuda.to_cpu(expected)
      )
  
imports: import unittest
  import numpy
  from chainer.backends import cuda
  from chainer import testing
  from chainer.testing import attr
  from chainercv.links.model.faster_rcnn import bbox2loc
  from chainercv.links.model.faster_rcnn import loc2bbox
  from chainercv.utils import generate_random_bbox
label_desc: Use image node_id 5 for calling the TestLocBboxConversions obj's underlying member method code with example usage: obj.check_loc2bbox(raw_bbox, bbox, expected) without return types