code: def test_connection_pattern(self):
      T = theano.tensor
      x = T.matrix("x")
      y = gradient.disconnected_grad(x)
  
      connection_pattern = y.owner.op.connection_pattern(y.owner)
      assert connection_pattern == [[False]]
  
imports: from __future__ import absolute_import, print_function, division
  from collections import OrderedDict
  import unittest
  import numpy
  from six.moves import xrange
  import theano
  from theano import gof, change_flags
  from theano.compat import izip
  from theano.tests import unittest_tools
  from theano import gradient
  from theano import config
  from theano.gof.null_type import NullType
  from theano.sandbox.rng_mrg import MRG_RandomStreams
label_desc: Use image node_id 4 for calling the TestDisconnectedGrad obj's underlying member method code with example usage: obj.test_connection_pattern() without return types