code: def setUp(self):
      N = 2
      c = 3
      self.ndim = len(self.dims)
      self.ksize = (self._ksize,) * self.ndim
      self.stride = (self._stride,) * self.ndim
      self.pad = (self._pad,) * self.ndim
  
      self.x_shape = (N, c) + self.dims
  
      self.outs = tuple(
          conv.get_deconv_outsize(d, k, s, p, cover_all=self.cover_all)
          for (d, k, s, p) in zip(
              self.dims, self.ksize, self.stride, self.pad
          )
      )
      self.gy_shape = (N, c) + self.outs
  
      if self.dtype == numpy.float16:
          self.check_forward_options = {
              "atol": 2**-4,
              "rtol": 2**-4,
          }
          self.check_backward_options = {
              "atol": 2**-4,
              "rtol": 2**-4,
          }
          self.check_double_backward_options = {}
      else:
          self.check_forward_options = {}
          self.check_backward_options = {"atol": 1e-3, "rtol": 1e-3}
          self.check_double_backward_options = {
              "atol": 3e-3,
              "rtol": 3e-2,
          }
  
imports: import itertools
  import unittest
  import numpy
  import six
  import chainer
  from chainer import backend
  from chainer import functions
  from chainer import testing
  from chainer.utils import conv
  from chainer.utils import type_check
label_desc: Use image node_id 1 for calling the TestUnpoolingND obj's underlying member method code with example usage: obj.setUp() without return types