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// check-pass
// edition: 2021
#![feature(async_fn_in_trait)]
#![allow(incomplete_features)]
use std::fmt::Debug;
trait MyTrait<'a, 'b, T> where Self: 'a, T: Debug + Sized + 'b {
type MyAssoc;
async fn foo(&'a self, key: &'b T) -> Self::MyAssoc;
}
impl<'a, 'b, T: Debug + Sized + 'b, U: 'a> MyTrait<'a, 'b, T> for U {
type MyAssoc = (&'a U, &'b T);
async fn foo(&'a self, key: &'b T) -> (&'a U, &'b T) {
(self, key)
}
}
fn main() {}
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