ObservableObjectをCodableさせる

class Person: ObservableObject, Codable {
    @Published var name = ""
    @Published var age = 0

    enum CodingKeys: CodingKey {
        case name, age
    }

    init() { }
    
    required init(from decoder: Decoder) throws {
        let container = try decoder.container(keyedBy: CodingKeys.self)
        name = try container.decode(String.self, forKey: .name)
        age = try container.decode(Int.self, forKey: .age)
    }

    func encode(to encoder: Encoder) throws {
        var container = encoder.container(keyedBy: CodingKeys.self)
        try container.encode(name, forKey: .name)
        try container.encode(age, forKey: .age)
    }
}