Return type: module is private (Rust newbie question)

[visortelle]

I'm trying to implement the following function:

struct Services {
  svc_a: <some_type>,
  svc_b: <some_type>,
  ...
}

fn get_services() -> Services {
  ...
}

The problem is: I determine the actual <some_type> via copying a type from the compiler error.
For the regular service works. The type is: pb::my_service_server::MyServiceServer<State>.

But for reflection and service with tonic_web there is an issue:

tonic_reflection::proto::server_reflection_server::ServerReflectionServer<impl tonic_reflection::proto::server_reflection_server::ServerReflection>
// error: module `proto` is private
// label: private module
}

tonic_web::service::GrpcWeb<pb::my_service_server::MyServiceServer<State>>
// error: module `service` is private
// label: private module

Is there some workaround or it just should be changed to the public in the tonic code?

Thank you.