import { LockOptions } from "./lock";
export type LockCallback<T> = () => Promise<T>;
/**
 * Executes the callback with locking the given file before,
 * and releasing it after the callback is executed.
 *
 * Generally, the callback/operation should target the file locked.
 *
 * @param file The path of the file to lock.
 * @param callback The function to execute while the file is locked.
 */
export declare function withLock<T>(file: string, callback: LockCallback<T>): Promise<T>;
/**
 * Executes the callback with locking the given file before,
 * and releasing it after the callback is executed.
 *
 * Generally, the callback/operation should target the file locked.
 *
 * @param file The path of the file to lock.
 * @param options The lock options/timeout.
 * @param callback The function to execute while the file is locked.
 */
export declare function withLock<T>(file: string, options: LockOptions, callback: LockCallback<T>): Promise<T>;