1 #[cxx::bridge]
2 mod ffi {
3     extern "C++" {
4         type Opaque;
f<'a>(&'a self, arg: &str) -> &'a str5         unsafe fn f<'a>(&'a self, arg: &str) -> &'a str;
6     }
7 }
8 
main()9 fn main() {}
10