/**
 * Worker Pool
 * contains code from [mapbox-gl-js](https://github.com/mapbox/mapbox-gl-js)
 * @private
 */
export default class WorkerPool {
    active: {
        [key: number]: boolean;
    };
    workerCount: number;
    workers: Worker[];
    constructor();
    acquire(id: number): Worker[];
    release(id: number): void;
    addMessage(workerId: number, data: any, buffers: ArrayBuffer[]): void;
    commit(): void;
    getWorkers(): Worker[];
    broadcastIdleMessage(messageRatio: number): this;
}
export declare function getGlobalWorkerPool(): WorkerPool;
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