code: def check_invalid_shape(self, xp):
      x = chainer.Variable(xp.asarray(self.x))
      t = chainer.Variable(xp.asarray(self.t))
      with self.assertRaises(type_check.InvalidType):
          functions.accuracy(x, t)
  
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 2 for calling the TestInvalidShape obj's underlying member method code with example usage: obj.check_invalid_shape(xp) without return types