{"ast_node_type":"variable","tokens":[{"end":50,"kind":"keyword","start":0,"text":"let"}]}
    let mut search = |lang, best_choice: &mut _| {
    let dependencies = &ctx.from.krate.data(ctx.db).dependencies;
        if let Some(dep) = dependencies.iter().filter(|it| it.is_sysroot()).find(|dep| {