Iterating without a tree

[cake-duke]

I've read the docs but I haven't been able to find an answer to my question.

I would like to understanding the following. I have a mutable struct and a few functions defined on it that mutate in the same structure of a tree. I.e. I have a "movetoparent!(obj)" function, and a "movetochild!(obj, i)" function. Can I use AbstractTrees.jl to walk a tree in this case?

I've asked this question on discourse, where I go into more details

https://discourse.julialang.org/t/abstracttrees-iterating-without-a-tree/96339