import type { StudioContextValue, StudioManifest } from '../index';
export interface StudioManifestPersistenceCoordinatorOptions {
    readonly projectId: string;
    readonly readManifest: () => StudioManifest | null;
    readonly readLastPersistedSignature: () => string | null;
    readonly setLastPersistedSignature: (signature: string | null) => void;
    readonly saveManifest: (projectId: string, manifest: StudioManifest) => Promise<void>;
    readonly setSaveStatus: (status: StudioContextValue['saveStatus']) => void;
    readonly setError: (message: string | null) => void;
    readonly toErrorMessage: (error: unknown) => string;
}
export declare class StudioManifestPersistenceCoordinator {
    private readonly options;
    private queue;
    constructor(options: StudioManifestPersistenceCoordinatorOptions);
    queueLatestSave(): Promise<void>;
    flushLatestSave(): Promise<void>;
    private enqueueLatestSave;
    private persistLatestUntilSettled;
}
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