Programmatically acquiring current release channel

We are looking for a way to know which release channel (ALPHA / BETA / etc.) a user is currently on when opening the game.

We can attain the version and BC, but as the same build may be available on multiple channels (and will be working through ALPHA -> CANDIDATE -> RELEASE), it's not possible/viable for us to bake the information into the build itself.

In effect, what I'm looking for would be something like `Application.GetReleaseChannel()`. I cannot find anything like this.

Thank you!