Is it safe to use the hook property of the vNode interface?

[Aaron-Pool]

After poking around the source code a bit, I noticed the hook property that can be set on the data object of a vnode, and It actually helped me solve one of the problems I was dealing with in a pretty elegant manner, but, since it's not documented anywhere, I wanted to make sure that that API is stable and ok to use in userland. Is that the case? My assumption is that it mirrors the hooks present on a directive.

[nickmessing]

@Aaron-Pool, it's never safe to use undocumented features, it's unlikely it's going to change in the 2.x branch but it's possible and will be extremely hard to debug if behaviour changes.