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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 scheduled_time(self):
 """Time this band was scheduled to be recorded."""

        timeline = "{:04d}".format(self.basic_info['observation_timeline'][0])
        return self.start_time.replace(hour=int(timeline[:2]), minute=int(timeline[2:4]), second=0, microsecond=0)