code: def __init__(self, *args, **kwargs):
      self.attempts = dict(
          get_spot_value_attempts=5,
          get_history_window_attempts=5,
          retry_sleeptime=5,
      )
  
      super(DataPortalExchangeBase, self).__init__(*args, **kwargs)
  
imports: import abc
  import datetime
  import numpy
  import pandas
  from catalyst.assets._assets import TradingPair
  from catalyst.constants import LOG_LEVEL, AUTO_INGEST
  from catalyst.data.data_portal import DataPortal
  from catalyst.exchange.exchange_bundle import ExchangeBundle
  from catalyst.exchange.exchange_errors import ExchangeRequestError, PricingDataNotLoadedError
  from catalyst.exchange.utils.exchange_utils import resample_history_df, group_assets_by_exchange
  from catalyst.exchange.utils.datetime_utils import get_frequency, get_start_dt
  from logbook import Logger
  from redo import retry
label_desc: Use image node_id 1 to create a new DataPortalExchangeBase object from inherited base classes: DataPortal with example: obj = DataPortalExchangeBase()