{"ast_node_type":"variable","tokens":[{"end":30,"kind":"keyword","start":0,"text":"let"}]}
    let display_target = krate
    let edition = krate.map(|it| it.edition(db)).unwrap_or(Edition::CURRENT);
        .unwrap_or_else(|| (*db.all_crates().last().expect("no crate graph present")).into())