old_contents: import re
  
  SPOTIFY_SERVICE = 1
  SOUNDCLOUD_SERVICE = 2
  
  VALID_ATTACHMENT_TYPES = ('.ogg',)
  
  # Regular expressions
  RE_ATTACHMENT_URI = re.compile('^disco:\/\/(.*)\/(.*)$')
  
new_contents: import re
  
  SPOTIFY_SERVICE = 1
  SOUNDCLOUD_SERVICE = 2
  
  VALID_ATTACHMENT_TYPES = ('.opus', '.weba', '.ogg', '.wav', '.mp3', '.flac')
  
  # Regular expressions
  RE_ATTACHMENT_URI = re.compile('^disco:\/\/(.*)\/(.*)$')
  
subject: Add more valid attachment types