code: def __init__(self):
      self.__lastDateTime = None
      self.__nextFix = 1
  
imports: from pyalgotrade import barfeed
  from pyalgotrade import bar
  from pyalgotrade.barfeed import csvfeed
  from pyalgotrade.utils import dt
  import datetime
label_desc: Use image node_id 1 to create a new UnixTimeFix object from inherited base classes: object with example: obj = UnixTimeFix()