code: def setUp(self):
      self.bbox = np.array(
          (
              (0, 0, 4, 4),
              (1, 1, 5, 5),  # 9/23
              (2, 1, 6, 5),  # 6/26, 12/20
              (4, 0, 8, 4),  # 0/32, 3/29, 6/26
          )
      )
  
imports: import unittest
  import numpy
  from chainer.backends import cuda
  from chainer import testing
  from chainer.testing import attr
  from chainercv.utils import generate_random_bbox
  from chainercv.utils import non_maximum_suppression
label_desc: Use image node_id 1 for calling the TestNonMaximumSuppression obj's underlying member method code with example usage: obj.setUp() without return types