{"ast_node_type":"import","tokens":[{"end":99,"kind":"keyword","start":0,"text":"//"}]}
        // For example, when one of the arguments is `Copy`, we turn a consuming use into a copy of
        // that we would *not* be moving all of the parameters into the async block in all cases.
        // a reference, so for `async fn x(t: i32) {}`, we'd only take a reference to `t`.