std::unique_ptr<monitoring::CollectedMetrics> metrics =
      collection_registry->CollectMetrics(options);

  EXPECT_EQ("test/gauge", metrics->point_set_map.at("test/gauge")->metric_name);
  EXPECT_EQ(1,
            metrics->point_set_map.at("test/gauge")->points.at(0)->int64_value);

  TFE_MonitoringIntGaugeCellSet(cell, 5);
  metrics = collection_registry->CollectMetrics(options);
  EXPECT_EQ(5,

  /* Want to test simple MatMul example with abstract tensors:
    [[1,2],   *  [[5,6],   =   [[19,22],
     [3,4]]       [7,8]]        [43,50]]
  */

  // Build 1st Matrix.
  int64_t dims[] = {2, 2};  // Matrices will be 2 x 2
  int num_dims = sizeof(dims) / sizeof(dims[0]);

  float vals1[] = {1.0f, 2.0f, 3.0f, 4.0f};