export declare const DOWNVOTE_HINT_TEMPLATE: string;
export declare function feedbackThreadKey(platform: string, channelId: string, threadId: string): string;
/** Arm (or refresh) the next-turn soft steer for a downvote. */
export declare function setPendingDownvoteHint(threadKey: string, hint?: string): void;
/** Clear when the user switches to upvote or clears the vote. */
export declare function clearPendingDownvoteHint(threadKey: string): void;
/** Read + delete. Empty / missing → undefined. */
export declare function consumePendingDownvoteHint(threadKey: string): string | undefined;
/** Test helper. */
export declare function resetPendingDownvoteHints(): void;
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