code: def nato(sentence, pad=' ', format='telephony'):
      '''
      Transform a sentence using the NATO spelling alphabet.
  
      :param sentence: input sentence
      :param pad: default ``' '``
      :param format: default ``telephony``, options ``telephony`` or ``phonetic``
  
      >>> print(nato('Python'))
      papa yankee tango hotel oscar november
  
      >>> print(nato('Python', format='phonetic'))
      pah-pah yang-key tang-go hoh-tel oss-cah no-vem-ber
  
      '''
      try:
          return '' + ALPHABET['nato'][format](sentence, pad)
      except KeyError:
          raise TypeError('Unsupported NATO alphabet "%s"' % (format,)f nato(sentence, pad=' ', format='telephony'):
      '''
      Transform a sentence using the NATO spelling alphabet.
  
      :param sentence: input sentence
      :param pad: default ``' '``
      :param format: default ``telephony``, options ``telephony`` or ``phonetic``
  
      >>> print(nato('Python'))
      papa yankee tango hotel oscar november
  
      >>> print(nato('Python', format='phonetic'))
      pah-pah yang-key tang-go hoh-tel oss-cah no-vem-ber
  
      '''
      try:
          return '' + ALPHABET['nato'][format](sentence, pad)
      except KeyError:
          raise TypeError('Unsupported NATO alphabet "%s"' % (format,))
docs: Transform a sentence using the NATO spelling alphabet.
  
      :param sentence: input sentence
      :param pad: default ``' '``
      :param format: default ``telephony``, options ``telephony`` or ``phonetic``
  
      >>> print(nato('Python'))
      papa yankee tango hotel oscar november
  
      >>> print(nato('Python', format='phonetic'))
      pah-pah yang-key tang-go hoh-tel oss-cah no-vem-ber