/**
 * Run `fn` holding the cross-process file lock `<target>.lock`, waiting
 * without blocking the event loop. Callers in one process contend on it too.
 */
export declare function withFileLock<T>(target: string, label: string, fn: () => Promise<T>): Promise<T>;
/**
 * Run `fn` holding the lock for `dest`: first queue behind any other call
 * for the same destination in this process, then take the cross-process
 * file lock `.<name>.skillsmith-fanout.lock` next to it.
 */
export declare function withDestinationLock<T>(dest: string, fn: () => Promise<T>): Promise<T>;
//# sourceMappingURL=fan-out.locks.d.ts.map