code: def get_kline(self, symbol, period, size=150):
          
          params = {'symbol': symbol, 'period': period, 'size': size}
          url = u.MARKET_URL + '/market/history/kline'
  
          def _wrapper(_func):
              @wraps(_func)
              def handle():
                  _func(http_get_request(url, params))
  
              return handle
  
          return _wrapper
docs: 获取K线
          :param symbol
          :param period: 可选值：{1min, 5min, 15min, 30min, 60min, 1day, 1mon, 1week, 1year }
          :param size: 可选值： [1,2000]
          :return: