function ChartPrefs ({ labels, validatorId }: Props): React.ReactElement<Props> {
  const { t } = useTranslation();
  const { api } = useApi();
  const params = useMemo(() => [validatorId, false], [validatorId]);
  const stakerPrefs = useCall<DeriveStakerPrefs[]>(api.derive.staking.stakerPrefs, params);