EC2 > Structures > SpotInstanceStateFault SpotInstanceStateFault¶ Structure Class¶ SpotInstanceStateFault dataclass ¶ Bases: _SerdeShape Describes a Spot Instance state change. Attributes¶ code class-attribute instance-attribute ¶ code: str | None = ... The reason code for the Spot Instance state change. message class-attribute instance-attribute ¶ message: str | None = ... The message for the Spot Instance state change.