问创建符合Codable的对象的(深层)副本

EN

class MyObject: Object, Codable {

    /* details omitted */
    var children = List<ChildObject>()

    func copy() throws -> MyObject {
        let data = try JSONEncoder().encode(self)
        let copy = try JSONDecoder().decode(MyObject.self, from: data)
        return copy
    }

}