{"ast_node_type":"other","tokens":[{"end":81,"kind":"keyword","start":0,"text":"check_non_exhaustive_variant(non_exhaustive,"}]}
                            check_non_exhaustive_variant(non_exhaustive, variant)
                        let ret = def.variants().iter().try_for_each(|variant| {
                                .map_break(|reason| FfiUnsafe { ty, reason, help: None })?;