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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 exponential_backoff(self):
 """A function that keeps waiting longer and longer the more rapidly it is called. It can be used to increasingly slow down service starts when they keep failing."""

        last_service_switch = self._service_starttime
        if not last_service_switch:
            return
        time_since_last_switch = time.time() - last_service_switch

        if not self._service_rapidstarts:
            self._service_rapidstarts = 0
        minimum_wait = 0.1 * (2 ** self._service_rapidstarts)
        minimum_wait = min(5, minimum_wait)

        if time_since_last_switch > 10:
            self._service_rapidstarts = 0
            return
        self._service_rapidstarts += 1
        self.log.debug("Slowing down service starts (%.1f seconds)", minimum_wait)
        time.sleep(minimum_wait)