import type { DeviceObservation } from "../types.js";
export interface OptimisticProperty<T> {
    /** The optimistic value while a command is outstanding, else the last confirmed value. */
    value: T | undefined;
    /** Whether an optimistic override is currently standing in for the confirmed value. */
    pending: boolean;
    /** The error from the most recently rejected/failed command, if any. */
    error: string | null;
    /** Requests `next` be actuated — reflected immediately, reconciled or reverted per design.md D12/D21/D31. */
    setValue: (next: T) => void;
}
export declare function useOptimisticDeviceProperty<T = unknown>(qualifiedId: string, property: string, confirmedValue: T | undefined, observation: DeviceObservation): OptimisticProperty<T>;
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