The purpose of `@overload` is quite different. I believe you thought that this is smth like `@override` in Java world but it different.

Basically, the correct usage of `@overaload` is:
```
@overload
def process(response: None) -> None:
    ...
@overload
def process(response: int) -> tuple[int, str]:
    ...
@overload
def process(response: bytes) -> str:
    ...
def process(response):
    <actual implementation>
```

Please, follow this link for more information https://docs.python.org/3/library/typing.html#typing.overload