How to use with Vogen?

[aradalvand]

Continuation of this conversation.

@AArnott Would appreicate your guidance on this.

[AArnott]

You can use PolyType's ReflectionTypeShapeProvider.Default instead of the sourcegen type shape provider for such cases.
Startup perf will be a bit worse, but still significantly better than MessagePack-Csharp I expect.