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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 mark(self, n=1):
 """Mark the occurrence of a given number of events."""

        self.tick_if_necessary()
        self.count += n
        self.m1_rate.update(n)
        self.m5_rate.update(n)
        self.m15_rate.update(n)