Might mock.MagicMock be given a type parameter?

Feature or enhancement

Proposal:

In the case of

class MyClass:
  def method_that_exists_on_my_class(self):
    pass

my_mock_thing = mock.create_autospec(MyClass)
my_mock_thing.method_that_exists_on_my_class()
my_mock_thing.method_that_does_not_exist_on_my_class()
my_mock_thing.method_that_exists_on_my_class.assert_called_once()
my_mock_thing.method_that_does_not_exist_on_my_class.assert_called_once()

it would be nice if the type of my_mock_thing were mock.MagicMock[MyClass] (instead of "raw" mock.MagicMock) so that type-checkers could alert me that my call to my_mock_thing.method_that_does_not_exist_on_my_class is a flaw in my test.

Has this already been discussed elsewhere?

This is a minor feature, which does not need previous discussion elsewhere

Links to previous discussion of this feature:

(I looked around among both open and closed issues and didn't see anything on this topic; apologies if I overlooked an already-ongoing discussion...)

此提案以 mock.MagicMock 和 mock.create_autospec 為核心；先找出這些進入點，並檢視目前如何為 mock 加上型別。接著找出與 autospec 屬性存取相關的測試。當型別檢查器能夠標示 autospecced mock 上不存在的方法，同時保留對有效方法的存取時，即表示完成。