code: def setUp(self):
      n_roi = 5
      n_class = 6
      self.roi_size = 7
      self.size = (18, 24)
      self.bg_label = 0
      self.roi_mask_prob = np.random.uniform(
          size=(n_roi, self.roi_size, self.roi_size)
      ).astype(np.float32)
      self.roi_prob = np.random.uniform(size=(n_roi, n_class)).astype(
          np.float32
      )
      self.bbox = generate_random_bbox(n_roi, self.size, 0, 18)
  
file_path: chainercv/tests/experimental_tests/links_tests/model_tests/fcis_tests/utils_tests/test_mask_voting.py
imports: import numpy
  import unittest
  import chainer
  from chainer import testing
  from chainercv.experimental.links.model.fcis.utils.mask_voting import mask_voting
  from chainercv.utils import assert_is_bbox
  from chainercv.utils import generate_random_bbox
label_desc: Use image node_id 1 for calling the TestMaskVoting obj's underlying member method code with example usage: obj.setUp() without return types