delete result;
    return nullptr;
  }
  return result;
}

void TFE_MonitoringDeleteBoolGauge1(TFE_MonitoringBoolGauge1* gauge) {
  delete gauge;
}

TFE_MonitoringBoolGaugeCell* TFE_MonitoringGetCellBoolGauge1(
    TFE_MonitoringBoolGauge1* gauge, const char* label1) {
  return static_cast<TFE_MonitoringBoolGaugeCell*>(
      static_cast<void*>(gauge->gauge->GetCell(label1)));
}

    const char* label1);
TF_CAPI_EXPORT extern void TFE_MonitoringDeleteBoolGauge1(
    TFE_MonitoringBoolGauge1* gauge);
TF_CAPI_EXPORT extern TFE_MonitoringBoolGaugeCell*
TFE_MonitoringGetCellBoolGauge1(TFE_MonitoringBoolGauge1* gauge,
                                const char* label1);

// APIs for Bool Gauge with 2 label.
typedef struct TFE_MonitoringBoolGauge2 TFE_MonitoringBoolGauge2;