code: def test_invalid_dilation_cpu(self):
      x = numpy.ones(self.x_shape, numpy.float32)
      w = numpy.ones(self.w_shape, numpy.float32)
      with self.assertRaises(ValueError):
          with chainer.using_config("use_ideep", "never"):
              self.check_invalid_dilation(x, w)
  
imports: import unittest
  import numpy
  import chainer
  from chainer.backends import cuda
  import chainer.functions
  from chainer import testing
  from chainer.testing import attr
  from chainer.testing import backend
label_desc: Use image node_id 2 for calling the TestConvolution2DInvalidDilation obj's underlying member method code with example usage: obj.test_invalid_dilation_cpu() without return types