Javascript 如何从Binance Websocket NPM包中获取以前的卷

我实际上喜欢这个NPM软件包，因为除了上一卷之外，它有我所需要的一切。当我调用Websocket时，它生成了这个结果

这是密码

const api = require('binance');
const binanceWS = new api.BinanceWS(true);
const streams = binanceWS.streams;
 var a1, a2;
binanceWS.onCombinedStream(
    [
     streams.ticker('BNBUSDT')
    ],
    streamEvent => {
        switch (streamEvent.stream) {
            case streams.ticker('BNBUSDT'):
             
             console.log(streamEvent.data);
        }
    }
);

这是结果输出

{
  eventType: '24hrTicker',
  eventTime: 1619449920389,
  symbol: 'BNBUSDT',
  priceChange: '16.76000000',
  priceChangePercent: '3.251',
  weightedAveragePrice: '519.27886943',
  previousClose: '515.46000000',
  currentClose: '532.33000000',
  closeQuantity: '0.45580000',
  bestBid: '532.32000000',
  bestBidQuantity: '2.19100000',
  bestAskPrice: '532.33000000',
  bestAskQuantity: '1.04910000',
  open: '515.57000000',
  high: '550.00000000',
  low: '478.01000000',
  baseAssetVolume: '3522095.68610000',
  quoteAssetVolume: '1828949865.91213540',
  openTime: 1619363520328,
  closeTime: 1619449920328,
  firstTradeId: 245583877,
  lastTradeId: 247300470,
  trades: 1716594
}

我可以看到以前和现在的收盘价，我有没有办法得到相同的报价和基础资产的数量？因此它将是

previousBaseAssetVolume

和

PreviousQuoteAsetVolume