Tatiana Gavrilova developed type-conversion support for file template format strings in the lsst/daf_butler repository, enhancing automation in data workflows. She implemented parsing and application of conversion specifiers within the FileTemplate component, allowing dynamic and reliable file naming based on metadata. Using Python and test-driven development, Tatiana added comprehensive unit tests to verify integer-to-string conversions, ensuring correctness and robustness. This backend development work streamlines data product naming and reduces manual post-processing, improving the reliability of template-based file generation. The feature addressed a specific need in data management and file templating, demonstrating thoughtful engineering within a focused, well-scoped project.