code: def test_serialize_feature(
      self, feature, input_signature, ascii_protos, function_handler
  ):
      @function_handler(input_signature=input_signature)
      def _serialize_feature(feature):
          return tf_utils._serialize_feature(feature)
  
      serialized_features = _serialize_feature(feature)
  
      self.assertEqual(len(ascii_protos), len(serialized_features))
      for ascii_proto, serialized_feature in zip(
          ascii_protos, serialized_features
      ):
          feature_proto = tf.train.Feature()
          feature_proto.ParseFromString(serialized_feature)
          self.assertProtoEquals(ascii_proto, feature_proto)
  
imports: import os
  import numpy
  from packaging import version
  import tensorflow
  from tensorflow_transform import analyzers
  from tensorflow_transform import annotators
  from tensorflow_transform import tf_utils
  from tensorflow_transform import test_case
  from tensorflow.python.framework import composite_tensor
label_desc: Use image node_id 29 for calling the TFUtilsTest obj's underlying member method code with example usage: obj.test_serialize_feature(feature, input_signature, ascii_protos, function_handler) and returns: tf_utils