{"ast_node_type":"other","tokens":[{"end":71,"kind":"keyword","start":0,"text":"attr::filter_by_name(&v.attrs,"}]}
                            attr::filter_by_name(&v.attrs, kw::Default)
                        .flat_map(|v| {
                                .filter_map(|attr| (attr.span != keep).then_some(attr.span))