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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, report):
 """ Add the items from the given report. """

        self.tp.extend(pack_boxes(report.tp, self.title))
        self.fp.extend(pack_boxes(report.fp, self.title))
        self.fn.extend(pack_boxes(report.fn, self.title))