code: def onBars(self, bars):
      bar = bars[self.__instrument]
      self.info(
          "%s %s %s"
          % (
              bar.getClose(),
              safe_round(self.__rsi[-1], 2),
              safe_round(self.__sma[-1], 2),
          )
      )
  
file_path: pyalgotrade/samples/tutorial-3.py
imports: from pyalgotrade import strategy
  from pyalgotrade.barfeed import quandlfeed
  from pyalgotrade.technical import ma
  from pyalgotrade.technical import rsi
label_desc: Use image node_id 2 for calling the MyStrategy obj's underlying member method code with example usage: obj.onBars(bars) without return types