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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 start(self, seconds=300):
 """ Starts timer. If timer is already running it will increase remaining time instead. :param int seconds: Initial time. """

        if self.state is TimerState.stopped:
            self.compare = time.time() + abs(seconds)
            self.state = TimerState.running
        elif self.state is TimerState.running:
            self.increase(seconds)