code: def test_bytes_stats(self):
      feature = statistics_pb2.FeatureNameStatistics()
      text_format.Parse(
          """
        bytes_stats: {
          common_stats: {
            num_non_missing: 1
          }
        }
      """,
          feature,
      )
      view = stats_util.FeatureView(feature)
      self.assertIsNone(view.numeric_statistics())
      self.assertIsNone(view.string_statistics())
      self.assertEqual(view.bytes_statistics(), feature.bytes_stats)
      self.assertIsNone(view.struct_statistics())
  
      self.assertEqual(
          view.common_statistics(), feature.bytes_stats.common_stats
      )
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import os
  from absl import flags
  from absl.testing import absltest
  import numpy
  import tensorflow
  from tensorflow_data_validation import types
  from tensorflow_data_validation.utils import artifacts_io_impl
  from tensorflow_data_validation.utils import stats_util
  from google.protobuf import text_format
  from tensorflow.python.util.protobuf import compare
  from tensorflow_metadata.proto.v0 import statistics_pb2
label_desc: Use image node_id 3 for calling the FeatureViewTest obj's underlying member method code with example usage: obj.test_bytes_stats() without return types