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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 update(self, cont):
 """Update this instance with the contextualize passed."""


        self.max_time = max(self.max_time, cont.max_time)
        if cont.items is not None:
            if self.items is None:
                self.items = cont.items
            else:
                self.items.update(cont.items)