C# Protobuf网中中间类的修饰

在protobuf网络中，应该装饰哪个基类？直接子类化的类还是最远的基类？或者两者都有

[ProtoContract]
[ProtoInclude(42, typeof(Derived))] // Here?
public abstract class BaseClass { }

[ProtoContract]
[ProtoInclude(42, typeof(Derived))] // Or Here?
public abstract class Intermediary : BaseClass { }

[ProtoContract]
public class Derived : Intermediary { }

---

每个预期子类型的直接父级，而不是祖先

因此：

基类

需要声明

中介

，而

中介

需要声明

派生

：

[ProtoContract]
[ProtoInclude(42, typeof(Intermediary))]
public abstract class BaseClass { }

[ProtoContract]
[ProtoInclude(42, typeof(Derived))]
public abstract class Intermediary : BaseClass { }

[ProtoContract]
public class Derived : Intermediary { }