code: def test_subtensor():
      x = theano.tensor.dvector()
      y = x[1]
      assert (
          theano.pp(y) == "<TensorType(float64, vector)>[Constant{1}]"
      )
  
imports: from __future__ import absolute_import, print_function, division
  import logging
  from nose.plugins.skip import SkipTest
  import numpy
  from six.moves import StringIO
  import theano
  import theano.tensor
  from theano.printing import min_informative_str, debugprint
label_desc: Use image node_id 13 for calling a global function with example usage: test_subtensor() without return types