TwitterAPI(3).swift

class TwitterAPI: NSObject, ObservableObject {
    @Published var authorizationSheetIsPresented = false // 1
    @Published var authorizationURL: URL? // 2
    @Published var user: User? // 3
    
    struct User {
        let ID: String
        let screenName: String
    }
    
    /* (...) */
    
    func authorize() {} // 4
}