{"ast_node_type":"other","tokens":[{"end":82,"kind":"keyword","start":0,"text":".par_items(|item|"}]}
        .par_items(|item| tcx.ensure_ok().check_well_formed(item.owner_id.def_id))
    let res = items
        .and(items.par_impl_items(|item| tcx.ensure_ok().check_well_formed(item.owner_id.def_id)))