import { BinanceClient } from '../../../clients';
export interface IndexPriceStreamResponse {
    eventTime: Date;
    pair: string;
    indexPrice: number;
}
export declare function indexPriceStream(client: BinanceClient, pair: string, updateSpeed: '1s' | '3s', callback: (data: IndexPriceStreamResponse, error?: any) => any): () => any;