The Gitlab API is growing every year and as such it is going to make a single file single class library harder and harder to update. One solution to this issue is to break up the single class into a number of classes and inherit from them. This will keep backwards compatibility with the current setup and make it easier to find and keep track of the API.

If we are to do this we would want to break out things like Users into its own class though it would still be called as so Gitlab.delete_user(1) event though its in a different class and file.

Suggested list of classes https://docs.gitlab.com/ce/api/README.html