How to support the Descriptor Class type check?

```
class Foo:
    def __get__(self, instance, owner) -> str:
        ...
    def __set__(self, instance, value: str) -> None:
        ...
class Test:
   foo = Foo()

test = Test()
test.foo.split() #  Undefined attribute [16]: `Foo` has no attribute `split`.
test.foo = 1 # There should be an error.
```