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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def retry_task(self):
 """Ask taskqueue to retry this task. Even though raising an exception can cause a task retry, it will flood logs with highly visible ERROR logs. Handlers should uses this method to perform controlled task retries. Only raise exceptions for those deserve ERROR log entries. """

    self.response.set_status(httplib.SERVICE_UNAVAILABLE, "Retry task")
    self.response.clear()