old_contents: import string
  import pytest
  
  from github_art.dictionaries import letters, letters2x
  
  
  @pytest.mark.parametrize('dictionary', [letters, letters2x])
  def test_alphabet_letters(dictionary):
      for character in string.lowercase:
          assert getattr(dictionary, character)
  
  
  @pytest.mark.parametrize('dictionary', [letters, letters2x])
  def test_height_exists(dictionary):
      for character in string.lowercase:
          assert getattr(dictionary, 'HEIGHT')
  
  
  @pytest.mark.parametrize('dictionary', [letters, letters2x])
  def test_space_letter(dictionary):
      for character in string.lowercase:
          assert getattr(dictionary, 'space')
  
  
  if __name__ == '__main__':
      pytest.main()
new_contents: import string
  import pytest
  
  from github_art.dictionaries import letters, letters2x
  
  
  @pytest.mark.parametrize('dictionary', [letters, letters2x])
  def test_alphabet_letters(dictionary):
      for character in string.lowercase:
          assert getattr(dictionary, character)
  
  
  @pytest.mark.parametrize('dictionary', [letters, letters2x])
  def test_height_exists(dictionary):
      assert getattr(dictionary, 'HEIGHT')
  
  
  @pytest.mark.parametrize('dictionary', [letters, letters2x])
  def test_space_letter(dictionary):
      assert getattr(dictionary, 'space')
  
  
  if __name__ == '__main__':
      pytest.main()
subject: fix test_letters