code: def __init__(self, barDataSeries):
      MissingDataVerifier.__init__(self, barDataSeries, 5)
  
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 MervalMissingDataVerifier object from inherited base classes: MissingDataVerifier with example: obj = MervalMissingDataVerifier(barDataSeries)