Problem

The v4/objects module is more than 4000 lines long and contains classes representing both GitLab objects and their managers.

Suggested Solutions

Would it make sense to move the manager implementations to a separate module, e.g. v4/managers, to reduce the module length and make the related classes easier to manage?

Would it make sense to split up the implementation in all separate modules (v4/event, v4/user, v4/project, etc.) representing the single GitLab objects? (Probably, as an alternative to moving out the manager classes.)