Well, it’s pretty much the opposite: if you want help with code, you should very likely provide the code. As little as possible, but working code. See Please read: make it easier to help you and How to create a Minimal, Reproducible Example - Help Center - Stack Overflow. Your code doesn’t define elementtuples nor charge.
I guess you’re now talking about Compound{Int}(str) (what is str? I assume it’s any string)?
If you want to be helped, providing incomplete code with wrong references is not going to put people in the right mood.