code: def tes_mod(self):
      # We add this test as not all language and C implementation give the same
      # sign to the result. This check that the c_code of `Mod` is implemented
      # as Python. That is what we want.
  
      x, y = ints("xy")
      fn = (
          gof.DualLinker()
          .accept(FunctionGraph([x, y], [x % y]))
          .make_function()
      )
      for a, b in (
          (0, 1),
          (1, 1),
          (0, -1),
          (1, -1),
          (-1, -1),
          (1, 2),
          (-1, 2),
          (1, -2),
          (-1, -2),
          (5, 3),
          (-5, 3),
          (5, -3),
          (-5, -3),
      ):
          self.assertTrue(fn(a, b) == a % b, (a,))
  
imports: from __future__ import absolute_import, print_function, division
  import unittest
  import numpy
  import theano
  from theano.gof import FunctionGraph
  from theano import gof
  from theano.tests import unittest_tools
  from theano.scalar.basic import floats, float16, float32, float64, ints, int8, int32, complex64, uint8, ComplexError, IntDiv, TrueDiv, Composite, add, div_proxy, and_, eq, neq, invert, mul, Scalar, InRange, cast, constant, switch
  from theano.scalar.basic import true_div, inv, log, log2, log10, log1p, exp, exp2, expm1, sqrt, deg2rad, rad2deg, cos, arccos, sin, arcsin, tan, arctan, arctan2, cosh, arccosh, sinh, arcsinh, tanh, arctanh
label_desc: Use image node_id 2 for calling the test_ScalarOps obj's underlying member method code with example usage: obj.tes_mod() without return types