{"ast_node_type":"other","tokens":[{"end":39,"kind":"keyword","start":0,"text":".flat_map(|supertrait_def_id|"}]}
        .flat_map(|supertrait_def_id| {
        .skip(1)
            tcx.associated_items(supertrait_def_id).filter_by_name_unhygienic(item_name)