class_docstr: Used as a mixin for TestCase
code: def test_ne(self):
      for obj_1, obj_2 in self.ne_pairs:
          self.assertNotEqual(obj_1, obj_2)
          self.assertNotEqual(obj_2, obj_1)
  
imports: import unittest
label_desc: Use image node_id 2 for calling the TestEquality obj's underlying member method code with example usage: obj.test_ne() without return types