{"ast_node_type":"other","tokens":[{"end":58,"kind":"keyword","start":0,"text":".chain(generics.params.iter().filter_map(|param|"}]}
        .chain(generics.params.iter().filter_map(|param| {
        .filter_map(|lt| lt.get_name(tcx).map(|name| name.as_str().to_string()))
            if let hir::GenericParamKind::Lifetime { .. } = &param.kind {