import type { Config } from './schema.js';
/** Restore an in-memory config object after a failed persistence attempt. */
export declare function restoreConfig(config: Config, snapshot: Config): void;
export declare class ConfigPersistenceError extends Error {
    constructor(message: string, options?: ErrorOptions);
}
export declare function persistConfigMutation<T>(params: {
    config: Config;
    mutate: () => T | Promise<T>;
    save: () => Promise<{
        saved: boolean;
        error?: string;
    }>;
}): Promise<T>;