class_docstr: Interface for ranking data parser.
class_docstr_tok: ["Interface","for","ranking","data","parser","."]
docstr: Parses a serialized proto into a feature map.
docstr_tok: ["Parses","a","serialized","proto","into","a","feature","map","."]
code: def parse(self, serialized):
      """Parses a serialized proto into a feature map."""
      raise NotImplementedError("Calling an abstract method.")
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import abc
  import functools
  import six
  import tensorflow
  from tensorflow import estimator
  from google.protobuf import descriptor_pb2
  from tensorflow_ranking.python import utils
label_desc: Use image node_id 2 for calling the _RankingDataParser obj's underlying member method code with example usage: obj.parse(serialized) without return types