use stable_typeid::*;
fn main() {
    let any = MyStruct {
        anything: "Hello TypeId".to_string(),
    };
    foo(&any);
}
fn foo(any: &dyn StableAny) {
    if let Some(my_struct) = any.downcast_ref::<MyStruct>() {
        println!("{} {}", my_struct.anything, MyStruct::_STABLE_ID);
    }
}
#[derive(StableID)]
struct MyStruct {
    anything: String,
}