import Foundation import Display public extension PresentationSurfaceLevel { static let root = PresentationSurfaceLevel(rawValue: 0) static let calls = PresentationSurfaceLevel(rawValue: 1) static let overlayMedia = PresentationSurfaceLevel(rawValue: 2) static let notifications = PresentationSurfaceLevel(rawValue: 3) static let passcode = PresentationSurfaceLevel(rawValue: 4) }