import type { IPoolItemWithStats } from '../types';
import { RoundRobin } from './RoundRobin';
interface IMinLoad {
    curr: number;
    prev: number;
}
export declare class BalancedRoundRobin<TKey, TValue extends IPoolItemWithStats> extends RoundRobin<TKey, TValue> {
    readonly agents: Map<TKey, TValue>;
    protected minLoad: IMinLoad;
    constructor(agents: Map<TKey, TValue>);
    getNextItem(): TValue;
    [Symbol.iterator](): Generator<TValue>;
}
export {};
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