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class Setting: NSObject {
    
    enum State {
        case off, on
    }
    
    enum Action {
        case setup, open
    }
    

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// class Setting

    init(name: String, action: Action, state: State = .on) {
        self.name = name
        self.action = action
        self.state = state
    }

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// Class Setting

init(with name: String, for action: Action, on state: State = .on) {
        self.name = name
        self.action = action
        self.state = state
    }
    
}

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class TransportStorage {
    
    weak var output: NSObject?
    
    var database: Any
    var token: String?
    
    init(database: Any) {
        self.database = database
    }

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class TransportStorage {
    
    weak var output: NSObject?
    
    let database: Any // <----- Constant
    var token: String?
    
    init(database: Any) {
        self.database = database
    }

vialyx

class FullscreenButton: UIButton {
    
    // Convenience initializer
    convenience init(_ screen: UIScreen) {
        // Reusing Designated initializer
        self.init(frame: screen.bounds)
    }
    
    // Initializer overriding
    override init(frame: CGRect) {

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class FullscreenButton: UIButton {
    
    // Convenience initializer
    convenience init(_ screen: UIScreen) {
        // Reusing Designated initializer
        self.init(frame: screen.bounds)
    }
    
    // Initializer overriding
    override init(frame: CGRect) {

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deinit {
    // perform your work
}

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class TransportStorage {
    
    var output: NSObject!
    
    let database: Any // <----- Constant
    var token: String?
    
    init(database: Any) {
        self.database = database
    }

vialyx

enum MachingError: Error {
    case NotEnoughtCharacters(count: Int)
}

enum CollectionError: Error {
    case Empty
}

throw MachingError.NotEnoughtCharacters(count: 1)