Result type for Slot defined as Optional[str]

The typing for Slot's result, as defined in QtCore.pyi, is set to Optional[str]:

class Slot(object):
    def __init__(self, *types: type, name: Optional[str] = ..., result: Optional[str] = ...) -> None: ...
    def __call__(self, function: Callable) -> Any: ...

However that should be a type (as also specified in the actual documentation): https://doc.qt.io/qtforpython-6/PySide6/QtCore/Slot.html

mypy also complains about setting the result as a type, even though a type is the correct value:

...py:100: error: Argument 1 to "addLayout" of "LayoutsMenu" has incompatible type "object"; expected "str"  [arg-type]