{"ast_node_type":"other","tokens":[{"end":69,"kind":"keyword","start":0,"text":"vec![Ty::new_mut_ptr(tcx,"}]}
            vec![Ty::new_mut_ptr(tcx, param(0)), param(0), param(0)],
            2,
            Ty::new_tup(tcx, &[param(0), tcx.types.bool]),