Contributed targeted typing enhancements to the python/typeshed repository, focusing on the Punq integration. Developed comprehensive type stubs for the Punq library, enabling improved static type checking and better editor support for downstream Python users. Enhanced the Container.register method by introducing a concrete return type annotation, which tightened API typing and reduced the risk of misuse. Leveraged skills in Python development, static typing, and type hinting to improve maintainability and developer experience. These changes streamlined static analysis workflows and made the typing surface more robust, directly addressing developer friction for those adopting Punq and supporting long-term code clarity and safety.