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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_status(self, new_status):
 """Record a status change with a current timestamp."""

        timestamp = time.time()
        self.status_history[-1]["end"] = timestamp
        self.status_history.append(
            {"start": timestamp, "end": None, "status": new_status}
        )