import type { ArkmePluginUpdateNotice } from './types.js';
export interface PersistedPluginUpdateState {
    version: 1;
    lastCheckedAtMillis?: number;
    lastSuccessfulCheckAtMillis?: number;
    lastKnownLatestVersion?: string;
    lastKnownNotice?: ArkmePluginUpdateNotice;
    acknowledgedVersion?: string;
    snoozedUntilMillis?: number;
    consecutiveFailures: number;
}
export interface PluginUpdateStateStoreOptions {
    onRecover?: (error: unknown) => void;
}
export declare class PluginUpdateStateStore {
    private readonly path;
    private readonly onRecover;
    private state;
    private queue;
    constructor(directory: string, options?: PluginUpdateStateStoreOptions);
    snapshot(): Promise<PersistedPluginUpdateState>;
    update(mutator: (state: PersistedPluginUpdateState) => void): Promise<PersistedPluginUpdateState>;
    private serial;
    private load;
    private write;
}
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