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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 Failed(self):
 """Indicates that a request has failed. Returns: Time interval to wait before retrying (in seconds). """

    interval = self._current_interval_sec
    self._current_interval_sec = min(
        self.max_interval_sec, self._current_interval_sec * self.multiplier)
    return interval