{"ast_node_type":"other","tokens":[{"end":91,"kind":"keyword","start":0,"text":"///"}]}
///     // the maximum that `&'call mut &'1 mut i32` can be reborrowed is `&'call mut i32`,
///     // `AsyncFnMut::async_call_mut`. Let's call that lifetime `'call`. Since
///     // the inner coroutine should capture w/ the lifetime of the coroutine-closure.