import { LockConfiguration, Writable } from "./types";
export declare class WritableObject<T> implements Writable<T> {
    value: T | null;
    lockId: string;
    constructor(value: T | null, lockId: string);
    update(value: T | null): Writable<T>;
}
export declare function validateLockConfiguration(config: LockConfiguration): void;
export declare class TimeoutError extends Error {
    constructor(key: string);
}
export type LockStatus = 'locked' | 'unlocked' | 'expired';
export declare function computeLockDuration(defaultTimeout: number, requestedTimeout?: number): number;