docs: public static Ticker adaptTicker(BitflyerTicker ticker, CurrencyPair currencyPair) {
  
      BigDecimal bid = ticker.getBestBid();
      BigDecimal ask = ticker.getBestAsk();
      BigDecimal volume = ticker.getVolume();
      BigDecimal last = ticker.getLtp();
      Date timestamp =
          ticker.getTimestamp() != null ? BitflyerUtils.parseDate(ticker.getTimestamp()) : null;
  
      return new Ticker.Builder()
          .currencyPair(currencyPair)
          .bid(bid)
          .ask(ask)
          .last(ask)
          .volume(volume)
          .timestamp(timestamp)
          .build();
    }