->points.at(0)
                     ->histogram_value.sum());

  TFE_MonitoringSamplerCellAdd(cell, 5.0);
  metrics = collection_registry->CollectMetrics(options);
  EXPECT_EQ(6.0, metrics->point_set_map.at("test/sampler")
                     ->points.at(0)
                     ->histogram_value.sum());
  TFE_MonitoringDeleteBuckets(buckets);
  TFE_MonitoringDeleteSampler0(sampler);

`SparseTensor.shape` has been renamed to `SparseTensor.dense_shape`. Same for
`SparseTensorValue.shape`. * Replace tf.scalar_summary, tf.histogram_summary,
tf.audio_summary, tf.image_summary with tf.summary.scalar, tf.summary.histogram,
tf.summary.audio, tf.summary.image, respectively. The new summary ops take name
rather than tag as their first argument, meaning summary ops now respect