code: def setUp(self):
      self.setUpBase()
  
      self.f100 = DummyFunc()
      self.l100 = ConstantStubLink(
          np.random.uniform(size=(1, 3, 24, 24))
      )
  
      self.link, self.original_link = (
          self.link.copy(mode=self.mode),
          self.link,
      )
  
imports: import numpy
  import unittest
  import chainer
  from chainer.backends.cuda import to_cpu
  from chainer.function import Function
  from chainer import testing
  from chainer.testing import attr
  from chainercv.links import PickableSequentialChain
  from chainercv.utils.testing import ConstantStubLink
label_desc: Use image node_id 1 for calling the TestCopiedPickableSequentialChain obj's underlying member method code with example usage: obj.setUp() without return types