Problem
The example for creating an extension method doesn't state that it has to be in a Module. Apparently, it does; a class doesn't work.
It also doesn't state if it matters that the method is Shared or not. In C#, extension methods have to be static (and IIRC, in a static class) so this question did enter my head.
Proposed Solution
Make these requirements explicit in the docs
Example Workflow
Alternatives Considered
Who Would This Help?
Beginners confused why their extension method isn't found / doesn't work; more experienced users coming from other languages and wanting to know the requirements of this one.
