{"ast_node_type":"other","tokens":[{"end":82,"kind":"keyword","start":0,"text":"///"}]}
///     // However, when we call `c()`, we implicitly autoref for the signature of
///     // The parent borrows `x` for some `&'1 mut i32`.
///     // `AsyncFnMut::async_call_mut`. Let's call that lifetime `'call`. Since