Tags give the ability to mark specific points in history as being important
GitLab upgrade completed. Current version is 18.3.6
https://about.gitlab.com/releases/2025/07/17/gitlab-18-2-released/
https://about.gitlab.com/releases/2025/08/21/gitlab-18-3-released/
Add exception and corresponding unit test
Restructure into a lib and an exe
Add Client and Gender as modules in client.ml
Add type client and print client