code: def setUp(self):
      in_size, out_size = 10, 8
      self.link = links.StatefulZoneoutLSTM(in_size, out_size)
  
imports: import unittest
  import numpy
  import chainer
  from chainer import backend
  from chainer.backends import cuda
  from chainer import gradient_check
  from chainer import links
  from chainer import testing
  from chainer.testing import attr
label_desc: Use image node_id 1 for calling the TestZoneoutState obj's underlying member method code with example usage: obj.setUp() without return types