code: def __init__(self, barDataSeries, threshold):
      self.__barDataSeries = barDataSeries
      self.__threshold = threshold
  
imports: import sys
  import os
  import datetime
  import symbolsxml
  import merval_calendar
  import pyalgotrade.logger
  from pyalgotrade.barfeed import yahoofeed
label_desc: Use image node_id 1 to create a new MissingDataVerifier object  with example: obj = MissingDataVerifier(barDataSeries, threshold)