code: def _bytes_feature(list_of_strings):
      """Returns a bytes_list from a list of string / byte."""
      return feature_pb2.Feature(
          bytes_list=feature_pb2.BytesList(value=list_of_strings)
      )
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import glob
  import os
  from absl.testing import absltest
  from absl.testing import parameterized
  import numpy
  from third_party.nucleus.protos import variants_pb2
  from third_party.nucleus.testing import test_utils
  from third_party.nucleus.util import vis
  from tensorflow.core.example import example_pb2
  from tensorflow.core.example import feature_pb2
label_desc: Use image node_id 1 for calling a global function with example usage: _bytes_feature(list_of_strings) and returns: feature_pb2