code: def test_all_features_defined():
      assert set(CRFEntityExtractorOptions) == set(
          CRFEntityExtractor.function_dict.keys()
      )
  
imports: import copy
  from typing import Dict, Text, List, Any, Callable
  import pytest
  from rasa.engine.graph import ExecutionContext
  from rasa.engine.storage.resource import Resource
  from rasa.engine.storage.storage import ModelStorage
  from rasa.nlu.featurizers.dense_featurizer.spacy_featurizer import SpacyFeaturizer
  from rasa.nlu.tokenizers.spacy_tokenizer import SpacyTokenizer
  from rasa.nlu.constants import SPACY_DOCS
  from rasa.nlu.tokenizers.whitespace_tokenizer import WhitespaceTokenizer
  from rasa.nlu.utils.spacy_utils import SpacyModel, SpacyNLP
  from rasa.shared.importers.rasa import RasaFileImporter
  from rasa.shared.nlu.constants import TEXT, ENTITIES
  from rasa.shared.nlu.training_data.message import Message
  from rasa.nlu.extractors.crf_entity_extractor import CRFEntityExtractor, CRFEntityExtractorOptions
label_desc: Use image node_id 2 for calling a global function with example usage: test_all_features_defined() without return types