code: def onExitCanceled(self, position):
      self.posExecutionInfo.append(
          position.getExitOrder().getExecutionInfo()
      )
  
imports: import datetime
  from pyalgotrade import strategy
label_desc: Use image node_id 8 for calling the TestStrategyMixin obj's underlying member method code with example usage: obj.onExitCanceled(position) without return types