How to expand MessagesViewController to full screen?

Question

I am making an iMessage extension and I want it to expand to full screen when the user begins to interact.

What is the API to do this?

Answer 1

self.requestPresentationStyle(.expanded)

Some more helpful code

if self.presentationStyle == .compact {
    self.requestPresentationStyle(.expanded)
} else {
    self.requestPresentationStyle(.compact)
}

Note: These calls are made from inside the MessagesViewController class