docs: def split_sentences(s, pad=0):
      """
      Split sentences for formatting.
      """
      sentences = []
      for index, sentence in enumerate(s.split('. ')):
          padding = ''
          if index > 0:
              padding = ' ' * (pad + 1)
          if sentence.endswith('.'):
              sentence = sentence[:-1]
          sentences.append('%s %s.' % (padding, sentence.strip()))
      return "\n".join(sentences)