type Resolve = (value?: void | PromiseLike<void>) => void;
export interface MutexOptions {
    queueSizeLimit?: number;
}
export declare class Mutex {
    protected queues: Map<string, Resolve[]>;
    protected queueSizeLimit?: number;
    constructor({ queueSizeLimit }?: MutexOptions);
    call: <Args extends unknown[], Result>(mark: string, fn: (...args: Args) => Promise<Result>, ...args: Args) => Promise<Result>;
    acquire: (mark: string) => Promise<void>;
    release: (mark: string) => void;
}
export {};