code: def onEnterCanceled(self, position):
      self.info("Position entry canceled")
      self.__position = None
  
file_path: pyalgotrade/samples/tutorial_bitstamp_1.py
imports: from pyalgotrade.bitstamp import barfeed
  from pyalgotrade.bitstamp import broker
  from pyalgotrade import strategy
  from pyalgotrade.technical import ma
  from pyalgotrade.technical import cross
label_desc: Use image node_id 4 for calling the Strategy obj's underlying member method code with example usage: obj.onEnterCanceled(position) without return types