import Piscina from '@posthog/piscina';
import { Hub, Queue, WorkerMethods } from '../../types';
interface Queues {
    ingestion: Queue;
    auxiliary: Queue;
}
export declare function pauseQueueIfWorkerFull(pause: undefined | (() => void | Promise<void>), server: Hub, piscina?: Piscina): void;
export declare function startQueues(server: Hub, piscina: Piscina, workerMethods?: Partial<WorkerMethods>): Promise<Queues>;
export {};