import type { Clock } from '../shared/Clock.js';
export type SyncStatus = 'synced' | 'pending' | 'degraded' | 'offline';
export interface SyncStatusFile {
    status: SyncStatus;
    last_sync: string;
    pending_count: number;
    error?: string;
}
export declare class SyncStatusStore {
    private filePath;
    private clock;
    private listeners;
    constructor(filePath: string, clock?: Clock);
    onChange(cb: (status: SyncStatus) => void): void;
    get(): Promise<SyncStatusFile>;
    set(status: SyncStatus, extra?: Partial<SyncStatusFile>): Promise<void>;
}