Correct method to expose "Reference" type

[jopemachine]

I have been working on writing Python bindings for raft-rs using pyo3. All the harness test code passes, but honestly, I'm still uncertain whether I have correctly implemented and exposed the "Reference" type because lots of pyo3 code seems black box to me.

The relevant code was taken from the RefMutContainer part of the tokenizer crate's python binding.

Would there be anyone who has considered how to overcome differences in memory management between the two languages when writing bindings, or issues like exposing reference types?

By any chance, is there any advice you can give me?

https://github.com/lablup/rraft-py/blob/main/src/utils/reference.rs