code: def test_iterating_returns_an_iterator_ordered_by_frequency():
      samples = ["one", "two", "two"]
      distribution = nltk.FreqDist(samples)
      assert list(distribution) == ["two", "one"]
  
label_desc: Use image node_id 1 for calling a global function with example usage: test_iterating_returns_an_iterator_ordered_by_frequency() without return types