code: def test_unroll_special(self):
      # (unroll_kern, unroll_batch) in (0,1),(1,0) is special case.
  
      self.validate((6, 2, 3, 3), (3, 2, 2, 2), "valid", unroll_batch=1)
  
imports: from __future__ import absolute_import, print_function, division
  import time
  from nose.plugins.skip import SkipTest
  import numpy
  import theano
  import theano.tensor
  from theano.tests import unittest_tools
  from theano.tensor.nnet import conv
  from theano.tensor.basic import _allclose, NotScalarConstantError
  from theano.tests.unittest_tools import attr
label_desc: Use image node_id 11 for calling the TestConv2D obj's underlying member method code with example usage: obj.test_unroll_special() without return types