code: def setUp(self):
      self.x = numpy.random.uniform(-1, 1, self.x_shape).astype(
          numpy.float32
      )
      self.t = numpy.random.randint(3, size=self.t_shape).astype(
          numpy.int32
      )
  
imports: import unittest
  import numpy
  import six
  import chainer
  from chainer.backends import cuda
  from chainer import functions
  from chainer import testing
  from chainer.testing import attr
  from chainer.utils import force_array
  from chainer.utils import type_check
label_desc: Use image node_id 1 for calling the TestInvalidShape obj's underlying member method code with example usage: obj.setUp() without return types