export declare class WorkerPoolShutdownError extends Error {
    constructor();
}
export declare class WorkerPoolTimeoutError extends Error {
    constructor(timeout: number);
}
export declare class WorkerPool<R> {
    private readonly shutdownTimeout;
    private activities;
    private isShuttingDown;
    private semaphore;
    constructor(concurrency?: number, shutdownTimeout?: number);
    execute(work: (signal: AbortSignal) => Promise<R>, options?: {
        timeout: number;
    }): Promise<R>;
    shutdown(): Promise<void>;
}
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