code: public CoinbaseSpotPriceHistory getCoinbaseHistoricalSpotRates(Integer page) throws IOException {
  
      return CoinbaseSpotPriceHistory.fromRawString(coinbase.getHistoricalSpotRates(page));
    }
docs: Unauthenticated resource that displays historical spot rates for Bitcoin in USD.
  
  @param page Optional parameter to request a desired page of results. Will return page 1 if the
  supplied page is null or less than 1.
  @return One thousand historical spot prices for the given page.
  @throws IOException