import FlexibleModelProtocol

struct MyModel: FlexibleModelProtocol {
    typealias selfType = MyModel
    ...
}

let myModel: MyModel? = MyModel.fromJson(jsonData: data)

let myModel: MyModel? = MyModel.fromXML(xmlData: data)

let myModel: MyModel? = MyModel.fromDictionary(dictionary: data)

let myModel: MyModel? = MyModel.fromNSDictionary(nsDictionary: data)

let jsonString: String = myModel.toJson()

let xmlString: String? = myModel.toXML()

let dictionary: [String:Any]? = myModel.toDictionary()

let nsDictionary: NSDictionary? = myModel.toNSDictionary()

struct MyModel: FlexibleModelProtocol {
    ...
}

struct MyCopyOnWriteModel: CopyOnWriteModelProtocol {
    typealias ModelType = MyModel
    var dataWrapper: DataWrapper<MyModel>? = nil
}

let model: MyModel = MyModel(...)
var emptyCowObj: MyCopyOnWriteModel = MyCopyOnWriteModel()
let cowData: MyCopyOnWriteModel? = model.toCopyOnWriteModel(object: &emptyCowObj)

let cowModel: MyCopyOnWriteModel = CowModel(dataWrapper: DataWrapper(originModel: MyModel(...)))
let flexibleModel: MyModel? = cowModel.toFlexibleProtocolModel()