import type { TalkTopic, TopicCollectionResult } from "./types.js";
export interface TopicGarbageCollectionOptions {
    now: number;
    currentTopicId?: string;
    maxWarmTopics: number;
    rawDetailItemBudget: number;
    closedRetentionMs: number;
}
export declare function collectTopicGarbage(input: readonly TalkTopic[], options: TopicGarbageCollectionOptions): TopicCollectionResult;
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