code: def test_elemwise1(self):
      self.check_rop_lop(
          self.x + tensor.cast(self.x, "int32"), self.in_shape
      )
  
imports: from __future__ import absolute_import, print_function, division
  import unittest
  from theano.tests import unittest_tools
  from theano import function
  import theano
  from theano import tensor
  import itertools
  import numpy
  from theano.gof import Op, Apply
  from theano.gradient import grad_undefined
  from theano.tests.unittest_tools import SkipTest
  from theano.tensor.signal.pool import Pool
  from theano.tensor.nnet import conv, conv2d
label_desc: Use image node_id 18 for calling the test_RopLop obj's underlying member method code with example usage: obj.test_elemwise1() without return types