code: def setUp(self):
      self.ndim = len(self.dims)
      self.ksize = (3,) * self.ndim
      self.stride = (2,) * self.ndim
      self.pad = (1,) * self.ndim
  
      self.x_shape = (2, 4) + self.dims
      self.x = numpy.random.uniform(-1, 1, self.x_shape).astype(
          self.dtype
      )
  
imports: import unittest
  import numpy
  import six.moves.cPickle
  import chainer
  from chainer.backends import cuda
  from chainer import functions
  from chainer import initializers
  from chainer.links.connection import convolution_nd
  from chainer import testing
  from chainer.testing import attr
  from chainer.utils import conv_nd
label_desc: Use image node_id 1 for calling the TestConvolutionNDIm2ColConsistency obj's underlying member method code with example usage: obj.setUp() without return types