{"ast_node_type":"function","tokens":[{"end":98,"kind":"keyword","start":0,"text":"fn"}]}
        fn check_create_gpl<N: GenericParamsOwnerEdit + fmt::Display>(before: &str, after: &str) {
    fn test_create_generic_param_list() {
            let gpl_owner = ast_mut_from_text::<N>(before);