new_contents: #!/usr/bin/env python
  #
  # Licensed under the BSD license.  See full license in LICENSE file.
  # http://www.lightshowpi.com/
  #
  # Author: Todd Giles (todd@lightshowpi.com)
  """Trivial wrapper around alsaaduio.cards() for getting a list of your audio cards.
  
  Helpful in determining the list of USB audio cards in advanced audio-in setups.
  https://bitbucket.org/togiles/lightshowpi/wiki/Audio-In%20Mode
  
  Sample usage:
  python audio_in_cards.py
  """
  
  import alsaaudio as aa
  
  if __name__ == "__main__":
      aa.cards()
  
subject: Update some comments on audio-in mode, including links to new wiki page. Also add tool wrapper around alsaaudio.cards()