I have a C# GRPC library that I am converting, I have complex protobuf-net objects (defined in C#) using features like inheritance. How can I convert these objects to native .proto files? If possible, I would like it to use composition instead of inheritance.

i.e

[ProtoContract]
class Person {
    [ProtoMember(1)]
    public int Id {get;set;}
    [ProtoMember(2)]
    public string Name {get;set;}
    [ProtoMember(3)]
    public Address Address {get;set;}
}
[ProtoContract]
class Address {
    [ProtoMember(1)]
    public string Line1 {get;set;}
    [ProtoMember(2)]
    public string Line2 {get;set;}
}

output:

syntax = "proto3";

package example;

// Message definition for Address
message Address {
    string line1 = 1;
    string line2 = 2;
}

// Message definition for Person
message Person {
    int32 id = 1;
    string name = 2;
    Address address = 3;
}