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# filter on it more efficiently, even though it is
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# user-settable, and would otherwise be in node.properties.
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instance_uuid = Column(String(36), nullable=True)
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chassis_id = Column(Integer, ForeignKey('chassis.id'), nullable=True)
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power_state = Column(String(15), nullable=True)
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target_power_state = Column(String(15), nullable=True)