docs: public static OrderBook adaptOrderBook(CexIODepth depth, CurrencyPair currencyPair) {
  
      List<LimitOrder> asks = createOrders(currencyPair, OrderType.ASK, depth.getAsks());
      List<LimitOrder> bids = createOrders(currencyPair, OrderType.BID, depth.getBids());
      Date date = new Date(depth.getTimestamp() * 1000);
      return new OrderBook(date, asks, bids);
    }