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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 processEscalatedException(self, ex):
 """ Process an exception escalated from a Replica """

        if isinstance(ex, SuspiciousNode):
            self.reportSuspiciousNodeEx(ex)
        else:
            raise RuntimeError("unhandled replica-escalated exception") from ex