Worked on the optuna/optuna repository, focusing on refactoring the InMemoryStorage component to improve code readability and performance. The primary contribution involved replacing traditional string formatting with Python f-strings, which streamlines the storage path logic and reduces boilerplate code. This targeted update not only enhances maintainability but also lays the groundwork for future optimizations in the storage backend. Leveraging skills in Python and code refactoring, the work addressed both performance and reliability objectives within the repository. No bug fixes were recorded during this period, with efforts concentrated on delivering a single, well-scoped feature that supports ongoing software development goals.