/// <reference types="node" />
import { EventEmitter } from "events";
import { IRedisOptions, NodeKey, NodeRole } from "./util";
export default class ConnectionPool extends EventEmitter {
    private redisOptions;
    private nodes;
    private specifiedOptions;
    constructor(redisOptions: any);
    getNodes(role?: NodeRole): any[];
    getInstanceByKey(key: NodeKey): any;
    getSampleInstance(role: NodeRole): any;
    /**
     * Find or create a connection to the node
     *
     * @param {IRedisOptions} node
     * @param {boolean} [readOnly=false]
     * @returns {*}
     * @memberof ConnectionPool
     */
    findOrCreate(node: IRedisOptions, readOnly?: boolean): any;
    /**
     * Remove a node from the pool.
     */
    private removeNode;
    /**
     * Reset the pool with a set of nodes.
     * The old node will be removed.
     *
     * @param {(Array<string | number | object>)} nodes
     * @memberof ConnectionPool
     */
    reset(nodes: IRedisOptions[]): void;
}