Let's say I have the following code in `example.py`: ```python class Example: def __init__(self) -> None: setattr(self, 'name', 'value') def a_function(self) -> bool: return self.name == 'value' e = Example() print(e.a_function()) ``` When I run `mypy example.py`, I get: ``` example.py:6: error: "Example" has no attribute "name" ``` Is this expected behavior?