{"ast_node_type":"other","tokens":[{"end":85,"kind":"keyword","start":0,"text":"self.ban_extra_rest_pat(rest_span,"}]}
                self.ban_extra_rest_pat(rest_span, prev_rest_span.unwrap(), "slice");
                // We have e.g., `[a, .., b, ..]`. That's no good, error!
            } else {