auto* sampler1 = TFE_MonitoringNewSampler1("test/sampler1", buckets, status,
                                             "test", "label1");
  CHECK_EQ(TF_OK, TF_GetCode(status)) << TF_Message(status);
  auto* cell1 = TFE_MonitoringGetCellSampler1(sampler1, "foo");
  TFE_MonitoringSamplerCellAdd(cell1, 1.0);
  TFE_MonitoringSamplerCellAdd(cell1, 2.0);
  TF_Buffer* result1 = TF_NewBuffer();
  TFE_MonitoringSamplerCellValue(cell1, result1);

    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;