code: def setUp(self):
      self.rng = np.random.RandomState(seed=utt.fetch_seed())
      self.m_val = self.rng.rand(3, 2)
      self.v_val = self.rng.rand(4)
  
imports: from __future__ import absolute_import, print_function, division
  from itertools import product, chain
  from functools import reduce
  import unittest
  from theano.tests import unittest_tools
  import numpy
  import theano
  from theano import tensor
  from theano.tensor.sort import sort, SortOp
  from theano.tensor.sort import argsort, ArgSortOp
  from theano.tensor.sort import topk, argtopk, topk_and_argtopk, TopKOp
label_desc: Use image node_id 1 for calling the Test_sort obj's underlying member method code with example usage: obj.setUp() without return types