Exposing trait methods to C++

[Timmmm]

We can expose a trait object to C++ something like this:

trait MyData {
  fn get_data(&self) -> Result<u64>;
}
type DynMyData = Box<dyn MyData>;

#[cxx::bridge]
mod ffi {
    extern "Rust" {
        type DynMyData;
        fn read_data() -> Result<Box<DynMyData>>;
        fn get_data(d: &DynMyData) -> Result<u64>;
    }
}

fn get_data(d: &DynMyData) -> Result<u64> {
  d.get_data();
}

But the trait has many methods and it gets quite tedious writing them all out like that. Bit of a long shot - kind of getting into SWIG territory - but Is there any way to expose the trait methods to C++ automatically?