docs: def release(self, message_id, reservation_id, delay=0):
          """Release locked message after specified time. If there is no message with such id on the queue.
  
          Arguments:
          message_id -- The ID of the message.
          reservation_id -- Reservation Id of the message.
          delay -- The time after which the message will be released.
          """
          url = "queues/%s/messages/%s/release" % (self.name, message_id)
          body = {'reservation_id': reservation_id}
          if delay > 0:
              body['delay'] = delay
          body = json.dumps(body)
  
          response = self.client.post(url, body=body,
                                      headers={'Content-Type': 'application/json'})
  
          return response['body']