Like the title says, TestCase.assertSequenceEqual does not behave like TestCase.assertEqual where it uses TestCase._getAssertEqualityFunc. Instead, TestCase.assertSequenceEqual uses `item1 != item2`. That way I can do something like this:

```
def test_stuff(self):
   self.addTypeEqualityFunc(
      MyObject,
      comparison_method_which_compares_how_i_want,
   )
   self.assertListEqual(
      get_list_of_objects(),
      [MyObject(...), MyObject(...)],
   )
```