code: def getSMA(self):
      return self.__sma
  
file_path: pyalgotrade/samples/sma_crossover.py
imports: from pyalgotrade import strategy
  from pyalgotrade.technical import ma
  from pyalgotrade.technical import cross
label_desc: Use image node_id 2 for calling the SMACrossOver obj's underlying member method code with example usage: obj.getSMA() and returns: self