code: def setUp(self):
      self.x = numpy.random.uniform(-1, 1, (2, 3, 4, 3)).astype(
          self.x_dtype
      )
  
imports: import unittest
  import numpy
  import pytest
  import six.moves.cPickle
  import chainer
  from chainer.backends import cuda
  from chainer import functions
  from chainer import links
  from chainer import memory_layouts
  from chainer import testing
  from chainer.testing import attr
  from chainer.utils import conv
label_desc: Use image node_id 1 for calling the TestConvolution2DIm2ColConsistency obj's underlying member method code with example usage: obj.setUp() without return types