old_contents: """
  .. moduleauthor:: Adam Gagorik <adam.gagorik@gmail.com>
  """
  import pydarkstar.darkobject
  import pydarkstar.database
  
  class Seller(pydarkstar.darkobject.DarkObject):
      """
      Buyer/Seller
  
      :param db: database object
      """
      def __init__(self, db, *args, **kwargs):
          super(Seller, self).__init__(*args, **kwargs)
          assert isinstance(db, pydarkstar.database.Database)
          self.db = db
  
  if __name__ == '__main__':
      pass
new_contents: """
  .. moduleauthor:: Adam Gagorik <adam.gagorik@gmail.com>
  """
  import pydarkstar.darkobject
  import pydarkstar.database
  
  class Seller(pydarkstar.darkobject.DarkObject):
      """
      Buyer/Seller
  
      :param db: database object
      :param seller: auction house seller id
      :param seller_name: auction house seller name
      """
      def __init__(self, db, seller=0, seller_name='Zissou', *args, **kwargs):
          super(Seller, self).__init__(*args, **kwargs)
          assert isinstance(db, pydarkstar.database.Database)
          self.db = db
          self.seller = int(seller)
          self.seller_name = str(seller_name)
  
  if __name__ == '__main__':
      pass
subject: Add seller properties.