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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 task_start_time(self):
 """Return the time the task starts. Time is set according to iso8601. """

        return datetime.time(
            self.task_start_parameters[
                ATTR_SMART_TASK_TRIGGER_TIME_START_HOUR],
            self.task_start_parameters[
                ATTR_SMART_TASK_TRIGGER_TIME_START_MIN])