old_contents: from arpa.models.simple import ARPAModelSimple
  
  
  def test_new_model_counts():
      lm = ARPAModelSimple()
      assert lm.counts() == []
  
  def test_new_model_len():
      lm = ARPAModelSimple()
      assert len(lm) == 0
  
new_contents: from arpa.models.simple import ARPAModelSimple
  
  
  def test_new_model_counts():
      lm = ARPAModelSimple()
      assert lm.counts() == []
  
  def test_new_model_len():
      lm = ARPAModelSimple()
      assert len(lm) == 0
  
  
  def test_new_model_vocabulary():
      lm = ARPAModelSimple()
      assert lm.vocabulary() == []
  
subject: test for lm.vocabulary()