code: def set_alphabet(self, alphabet):
          
  
          # Turn the alphabet into a set and sort it to prevent duplicates
          # and ensure reproducibility.
          new_alphabet = list(sorted(set(alphabet)))
          if len(new_alphabet) > 1:
              self._alphabet = new_alphabet
              self._alpha_len = len(self._alphabet)
          else:
              raise ValueError("Alphabet with more than " "one unique symbols required.")
docs: Set the alphabet to be used for new UUIDs.