Worked on refining the command-line interface experience for the aiven/aiven-client repository, focusing on disk space configuration for data storage APIs. Addressed a user-facing bug by clarifying the help text and metavar for the disk-space-gib argument, ensuring that input units matched internal handling of GiB and MiB. This Python-based CLI development improved user guidance and reduced potential confusion during API calls, without introducing breaking changes. Updated documentation and test expectations to reflect the clarified behavior, aiming to minimize support requests related to disk space settings. The work demonstrated careful attention to usability and consistency in Python CLI tooling and documentation.