import { type Hlc } from "../util/hlc.js";
import { type SubscriptionEntryMode, type SubscriptionState } from "./subscription-ledger-write.js";
export interface SubscriptionRecord {
    coordinate: string;
    rid: string;
    entryMode: string;
    addedAt: string;
    state: SubscriptionState;
    hlc: Hlc | null;
    hlcMalformed?: boolean;
    seq: number;
    writerId: string;
}
export interface LiveSubscription {
    coordinate: string;
    rid: string;
    entryMode: SubscriptionEntryMode | string;
}
export declare function listSubscriptionShards(podRoot?: string): string[];
export declare function readAllSubscriptionRecords(podRoot?: string): SubscriptionRecord[];
export declare function foldSubscriptions(records: readonly SubscriptionRecord[]): LiveSubscription[];
export declare function liveSubscriptions(podRoot?: string): LiveSubscription[];
export declare function observedMaxSubscriptionHlc(podRoot?: string): Hlc | null;
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