old_contents: 
  def soup2dict(soup, url=""):
      """
      Extract info from a BeautifulSoup soup into a dictionary.  Return a new
      dictionary containing metadata fields.
      """
      result = dict()
      if url:
          result["url"] = url
  
  def markdown_citation(dictionary, reference_style=False):
      pass
  
  def markdown_hyperlink(dictionary):
      pass
  
  def mediawiki_citation(dictionary):
      pass
  
  def mediawiki_hyperlink(dictionary):
      pass
  
  if __name__ == "__main__":
      main()
  
new_contents: 
  def main():
      pass
  
  def soup2dict(soup, url=""):
      """
      Extract info from a BeautifulSoup soup into a dictionary.  Return a new
      dictionary containing metadata fields.
      """
      result = dict()
      if url:
          result["url"] = url
  
  def markdown_citation(dictionary, reference_style=False):
      pass
  
  def markdown_hyperlink(dictionary):
      pass
  
  def mediawiki_citation(dictionary):
      pass
  
  def mediawiki_hyperlink(dictionary):
      pass
  
  if __name__ == "__main__":
      main()
  
subject: add main