docs: public static void collectStats(final StatsCollector collector) {
      collector.record("rpc.forbidden", telnet_requests_forbidden, "type=telnet");
      collector.record("rpc.unauthorized", telnet_requests_unauthorized, "type=telnet");
      collector.record("rpc.forbidden", http_requests_forbidden, "type=http");
      collector.record("rpc.unauthorized", http_requests_unauthorized, "type=http");
      collector.record("rpc.received", http_requests, "type=put");
      collector.record("rpc.errors", hbase_errors, "type=hbase_errors");
      collector.record("rpc.errors", invalid_values, "type=invalid_values");
      collector.record("rpc.errors", illegal_arguments, "type=illegal_arguments");
      collector.record("rpc.errors", unknown_metrics, "type=unknown_metrics");
      collector.record("rpc.errors", writes_blocked, "type=socket_writes_blocked");
    }