code: def get_time_window(self):
      """
      Get the anomaly period.
      :return tuple: a tuple representation of the anomaly period.
      """
      return self.start_timestamp, self.end_timestamp
  
label_desc: Use image node_id 2 for calling the Anomaly obj's underlying member method code with example usage: obj.get_time_window() and returns: self,  self