code: def set_timeout(self, visibility_timeout, callback=None):
          
          def _set_timeout(retval):
              if retval:
                self.visibility_timeout = visibility_timeout
              if callable(callback):
                  callback(retval)
          retval = self.set_attribute('VisibilityTimeout', visibility_timeout, callback=_set_timeout)
docs: Set the visibility timeout for the queue.
  
          :type visibility_timeout: int
          :param visibility_timeout: The desired timeout in seconds