delete result;
    return nullptr;
  }
  return result;
}

void TFE_MonitoringDeleteSampler1(TFE_MonitoringSampler1* sampler) {
  delete sampler;
}

TFE_MonitoringSamplerCell* TFE_MonitoringGetCellSampler1(
    TFE_MonitoringSampler1* sampler, const char* label1) {
  return static_cast<TFE_MonitoringSamplerCell*>(
      static_cast<void*>(sampler->sampler->GetCell(label1)));
}

    const char* description, const char* label1);
TF_CAPI_EXPORT extern void TFE_MonitoringDeleteSampler1(
    TFE_MonitoringSampler1* sampler);
TF_CAPI_EXPORT extern TFE_MonitoringSamplerCell* TFE_MonitoringGetCellSampler1(
    TFE_MonitoringSampler1* sampler, const char* label1);

// APIs for Sampler with 2 label.
typedef struct TFE_MonitoringSampler2 TFE_MonitoringSampler2;