class_docstr: Interface for an NL classifier.
docstr: Should return True iff value is classified as NL.
docstr_tok: ["Should","return","True","iff","value","is","classified","as","NL","."]
code: def classify(self, value: Text) -> bool:
      """Should return True iff value is classified as NL."""
      raise NotImplementedError()
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import abc
  from typing import Optional
  import numpy
  import pyarrow
  import six
  from tensorflow_data_validation import types
  from tensorflow_data_validation.statistics.generators import stats_generator
  from tensorflow_data_validation.utils import stats_util
  from tfx_bsl.arrow import array_util
  from typing import Iterable, Text
  from tensorflow_metadata.proto.v0 import statistics_pb2
label_desc: Use image node_id 1 for calling the NLClassifierInterface obj's underlying member method code with example usage: obj.classify(value) without return types