Even though this is factoring to support several kernel actions, it's more important for it to be next to the other actions than for it to be an internal function. (The module structure keeps non-exports away from the exports.) The sets and the get have a similar structure, and I think they should stay together to emphasize that.

Let's make this an export and move it right after the create/initialize/set and before the get. While it will be publicly visible through a direct kernel reference, it won't be exposed through the `vwf/kernel/model` and `vwf/kernel/view` interfaces.