code: def getSMA(self, instrument):
      return self.__sma[instrument]
  
imports: from __future__ import print_function
  from pyalgotrade import strategy
  from pyalgotrade import plotter
  from pyalgotrade.barfeed import yahoofeed
  from pyalgotrade.technical import ma
  from pyalgotrade.technical import cumret
  from pyalgotrade.stratanalyzer import sharpe
  from pyalgotrade.stratanalyzer import returns
label_desc: Use image node_id 9 for calling the MarketTiming obj's underlying member method code with example usage: obj.getSMA(instrument) and returns: self