[pyrale]

It just doesn't really happen that much in functional programs, to be honest.

The very concept of n objects pointing to the same, commonly mutated data is something that can be adressed easily by having that data contained by a parent structure. Since functional programs don't think in terms of "methods" within each object trying to access data, but in terms of external function manipulating all the data you need, the only change is the way you'll pass your data to your functions.