text: import pytest
  from rasa.nlu.tokenizers.whitespace_tokenizer import WhitespaceTokenizer
  
  from rasa_nlu_examples.featurizers.dense import BytePairFeaturizer
  from .featurizer_checks import dense_standard_test_combinations
  
  
  config = dict(lang="en", vs=1000, dim=25, vs_fallback=True)
  tokenizer = WhitespaceTokenizer()
  featurizer = BytePairFeaturizer(component_config=config)
  
  
  def test_model_loaded():
      assert featurizer
  
  
  @pytest.mark.parametrize(
      "test_fn,tok,feat,msg",
      dense_standard_test_combinations(tokenizer=tokenizer, featurizer=featurizer),
  )
  def test_featurizer_checks(test_fn, tok, feat, msg):
      test_fn(tok, feat, msg)
  