> It only need to wrap an argument when it is a singular value.

It is also wrong..., sorry.
To compare a single value, I should have passed a tuple of tuples.

```
> python demo.py                                                                                                                                                             2022-04-04 14:56:41
mock_obj.call_args_list
[call(1), call(2)]
mock_obj.call_args_list == [(1,), (2,)]
False
mock_obj.call_args_list == [call(1,), call(2,)]
True
mock_obj.call_args_list == [((1,),), ((2,),)]
True
```