code: def get_attributes(self, attributes='All', callback=None):
          
          return self.connection.get_queue_attributes(self, attributes, callback=callback)
docs: Retrieves attributes about this queue object and returns
          them in an Attribute instance (subclass of a Dictionary).
  
          :type attributes: string
          :param attributes: String containing one of:
                             ApproximateNumberOfMessages,
                             ApproximateNumberOfMessagesNotVisible,
                             VisibilityTimeout,
                             CreatedTimestamp,
                             LastModifiedTimestamp,
                             Policy
          :rtype: Attribute object
          :return: An Attribute object which is a mapping type holding the
                   requested name/value pairs