export interface ExclusiveLockOptions {
    directory: string;
    lockName: string;
    /** Error message when acquisition times out. */
    timeoutMessage: string;
    staleMs?: number;
    attempts?: number;
    delayMs?: number;
}
export declare const withExclusiveFileLockAsync: <T>(options: ExclusiveLockOptions, operation: () => T | Promise<T>) => Promise<T>;
export declare const withExclusiveFileLock: <T>(options: ExclusiveLockOptions, operation: () => T) => T;
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