{"ast_node_type":"other","tokens":[{"end":79,"kind":"keyword","start":0,"text":"impl<'tcx>"}]}
impl<'tcx> rustc_type_ir::inherent::ParamEnv<TyCtxt<'tcx>> for ParamEnv<'tcx> {
    fn caller_bounds(self) -> impl inherent::SliceLike<Item = ty::Clause<'tcx>> {