System.out.println(pairs);
Map<CurrencyPair, BTERTicker> tickers = marketDataService.getBTERTickers();
System.out.println(tickers);
BTERTicker ticker = marketDataService.getBTERTicker(Currencies.PPC, Currencies.BTC);
System.out.println(ticker);
BTERDepth depth = marketDataService.getBTEROrderBook(Currencies.BTC, Currencies.CNY);
System.out.println(depth);