16 lines
271 B
Python
16 lines
271 B
Python
from abc import ABC, abstractmethod
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class Lamp:
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@abstractmethod
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def on(self):
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pass
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@abstractmethod
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def off(self):
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pass
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@abstractmethod
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def is_on(self) -> bool:
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pass
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@abstractmethod
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def __repr__(self):
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pass
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