input: def reverse_words_in_sentence(sentence: str) -> str:
      """ Reverse the order of words in a sentence but keep the order of characters in each word the same.
      >>> reverse_words_in_sentence('This is a sentence.')
      'sentence. a is This'
      >>> reverse_words_in_sentence('Hello World')
      'World Hello'
      ""
      words = sentence.split()
      reversed_words = words[::-1]
      return ' '.join(reversed_words)
output:     words = sentence.split()
      reversed_words = words[::-1]
      return ' '.join(reversed_words)