Detecting keyboard "submit button" press for TextEditor SwiftUI

On SwiftUI's TextField you can set an action for the return/submit button of the keyboard using the .onSubmit() modifier. How do you achieve the same with TextEditor? (.onSubmit() doesn't seem to work.)

You can use on change for the bound variable for the TextEditor like this:

    TextEditor(text: $text)
        .onChange(of: text) { _ in
            if !text.filter({ $0.isNewline }).isEmpty {
                print("Found new line character")
            }
        }

Realize that TextEditor does not have a submit button, per se. It is meant to accept an unlimited amount of all kinds of text.