code: def test_invalid_outsize_cpu(self):
      with self.assertRaises(ValueError):
          self.check_forward(self.x, self.rois, self.roi_indices)
  
imports: import chainer
  from chainer.backends import cuda
  from chainer import gradient_check
  from chainer import testing
  from chainer.testing import attr
  from chainer.testing import condition
  import numpy
  import unittest
  from chainercv import functions
label_desc: Use image node_id 3 for calling the TestPSROIAveragePooling2DFailure obj's underlying member method code with example usage: obj.test_invalid_outsize_cpu() without return types