code: def test_invalid_shape_cpu(self):
      with self.assertRaises(ValueError):
          self.link(
              chainer.Variable(
                  numpy.zeros(self.shape, dtype=self.dtype)
              )
          )
  
imports: import unittest
  import numpy
  import chainer
  from chainer.backends import cuda
  from chainer import links
  from chainer import testing
  from chainer.testing import attr
label_desc: Use image node_id 2 for calling the TestInvalidInput obj's underlying member method code with example usage: obj.test_invalid_shape_cpu() without return types