{"ast_node_type":"other","tokens":[{"end":59,"kind":"keyword","start":0,"text":"ast::GenericParamKind::Lifetime"}]}
            ast::GenericParamKind::Lifetime { .. } => None,
        let non_lt_param_spans = params.iter().filter_map(|param| match param.kind {
            _ => Some(param.ident.span),