code: def _test_validate_resample(self):
      pass
  
file_path: catalyst/tests/exchange/test_data_portal.py
imports: import pandas
  from logbook import Logger
  from catalyst import get_calendar
  from catalyst.exchange.exchange_asset_finder import ExchangeAssetFinder
  from catalyst.exchange.exchange_data_portal import DataPortalExchangeBacktest, DataPortalExchangeLive
  from catalyst.exchange.utils.factory import get_exchanges
label_desc: Use image node_id 6 for calling the TestExchangeDataPortal obj's underlying member method code with example usage: obj._test_validate_resample() without return types