code: def __init__(self, period, useAdjustedValues):
      assert period > 1
      super(ATREventWindow, self).__init__(period)
      self.__useAdjustedValues = useAdjustedValues
      self.__prevClose = None
      self.__value = None
  
file_path: pyalgotrade/pyalgotrade/technical/atr.py
imports: from pyalgotrade import technical
  from pyalgotrade.dataseries import bards
label_desc: Use image node_id 1 to create a new ATREventWindow object from inherited base classes: technical with example: obj = ATREventWindow(period, useAdjustedValues)