code: def key(
          seq: Sequence,
          tooth: Callable[[Sequence], str] = (
              lambda seq: str(random.SystemRandom().choice(seq)).strip()
          ),
          nteeth: int = 6,
          delimiter: str = ' ',
  ) -> str:
      
      return delimiter.join(tooth(seq) for _ in range(nteeth))
docs: Concatenate strings generated by the tooth function.