import NanoEvents from "nanoevents";
import { EventTypes, FetchMethod, FetchingKeys, Item, OnFetching, OnUpdateList, QueuePoolState, Queues, addQueueType } from "./types";
import { Queue } from "./queue";
declare const emitter: NanoEvents<{
    [key: string]: Record<string, any>;
}>;
export declare function fireUpdateListEvent(queueName: string, items: Item[], eventType: EventTypes): void;
export declare function fireFetchingEvent(queueName: string, fetchingKeys: FetchingKeys): void;
export declare function QueuePool(): Readonly<{
    addQueue: (queueName: string, fetchMethod: FetchMethod, initItem?: Item[]) => {
        addQueue: addQueueType;
    };
    getQueue: (queueName: string) => ReturnType<typeof Queue>;
    getQueues: () => Queues;
    initPool: (userId: number, pool: QueuePoolState) => {
        addQueue: addQueueType;
    };
    onFetching: (cb: OnFetching) => ReturnType<typeof emitter.on>;
    onUpdateList: (cb: OnUpdateList) => ReturnType<typeof emitter.on>;
    removeQueue: (queueName: string) => void;
}>;
export {};