code: def test_predict_cpu(self):
      assert_is_instance_segmentation_link(self.link, self.n_class - 1)
  
imports: import numpy
  import unittest
  import chainer
  from chainer import testing
  from chainer.testing import attr
  from chainercv.experimental.links.model.fcis import FCIS
  from chainercv.utils import assert_is_instance_segmentation_link
  from chainercv.utils import generate_random_bbox
label_desc: Use image node_id 5 for calling the TestFCIS obj's underlying member method code with example usage: obj.test_predict_cpu() without return types