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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 _handle_reset(self):
 """Reset this controller tile. This process will call _handle_reset() for all of the controller subsystem mixins in order to make sure they all return to their proper reset state. It will then reset all of the peripheral tiles to emulate the behavior of a physical POD where the controller tile cuts power to all peripheral tiles on reset for a clean boot. This will clear all subsystems of this controller to their reset states. The order of these calls is important to guarantee that everything is in the correct state before resetting the next subsystem. The behavior of this function is different depending on whether deferred is True or False. If it's true, this function will only clear the config database and then queue all of the config streaming rpcs to itself to load in all of our config variables. Once these have been sent, it will reset the rest of the controller subsystems. """


        self._logger.info("Resetting controller")
        self._device.reset_count += 1

        super(ReferenceController, self)._handle_reset()

        # Load in all default values into our config variables before streaming
        # updated data into them.
        self.reset_config_variables()