{"ast_node_type":"other","tokens":[{"end":98,"kind":"keyword","start":0,"text":"UncoveredTyParams"}]}
    UncoveredTyParams { uncovered, local_ty }: UncoveredTyParams<TyCtxt<'tcx>, FxIndexSet<DefId>>,
    tcx: TyCtxt<'tcx>,
    impl_def_id: LocalDefId,