{"ast_node_type":"other","tokens":[{"end":39,"kind":"keyword","start":0,"text":"body.walk_pats(pat_id,"}]}
    body.walk_pats(pat_id, &mut |pat| {
    let mut res = false;
        res |= matches!(body[pat], Pat::Bind { id, .. } if body.bindings[id].mode == BindingAnnotation::Ref);