```python # main.py from collections.abc import Iterator from contextlib import contextmanager from typing import reveal_type from dependency_injector import containers, providers @contextmanager def _get_my_int() -> Iterator[int]: print("Enter context") yield 1 class Container(containers.DeclarativeContainer): get_my_int = providers.Resource(_get_my_int) container = Container() my_int = container.get_my_int() reveal_type(my_int) ``` Running `python main.py`: ``` Enter context Runtime type is 'int' ``` Running `mypy main.py` ``` main.py:20: note: Revealed type is "contextlib._GeneratorContextManager[builtins.int, None, None]" Success: no issues found in 1 source file ```