code: def check_invalid_poolings(self):
      with self.assertRaises(ValueError):
          functions.spatial_pyramid_pooling_2d(self.v, 3, pooling="avg")
  
imports: import unittest
  import numpy
  import chainer
  from chainer.backends import cuda
  from chainer import functions
  from chainer import gradient_check
  from chainer import testing
  from chainer.testing import attr
  from chainer.testing import condition
  from chainer.utils import type_check
  from chainer_tests.functions_tests.pooling_tests import pooling_nd_helper
label_desc: Use image node_id 3 for calling the TestInvalidArguments obj's underlying member method code with example usage: obj.check_invalid_poolings() without return types