code: def setUp(self):
      self.in_channels = 3
      self.out_channels = 6
      self.ksize = 3
      self.stride = 2
      self.pad = 1
      if self.nobias:
          TestDeconvolution2D.param_names = ("W",)
      else:
          TestDeconvolution2D.param_names = ("W", "b")
  
      self.check_backward_options.update({"atol": 1e-3, "rtol": 1e-2})
  
imports: import numpy
  import chainer
  from chainer.backends import cuda
  import chainer.functions
  from chainer import links
  from chainer import testing
  from chainer.testing import parameterize
label_desc: Use image node_id 1 for calling the TestDeconvolution2D obj's underlying member method code with example usage: obj.setUp() without return types