code: def setUp(self):
      mu = chainer.links.Linear(*self.size_args, nobias=self.nobias)
      self.linear = noisy_linear.FactorizedNoisyLinear(mu)
  
imports: import unittest
  import chainer
  from chainer import cuda
  from chainer import testing
  from chainer.testing import attr
  from chainer.testing import condition
  import numpy
  from chainerrl.links import noisy_linear
label_desc: Use image node_id 1 for calling the TestFactorizedNoisyLinear obj's underlying member method code with example usage: obj.setUp() without return types