code: def __init__(self, current_date_func, asset_finder):
      self.current_date_func = current_date_func
      self.asset_finder = asset_finder
      self._leveraged_etf = None
  
imports: import warnings
  from datetime import datetime
  from os import listdir
  import os.path
  import pandas
  import pytz
  import catalyst
  from catalyst.errors import SymbolNotFound
  from catalyst.finance.asset_restrictions import SecurityListRestrictions
  from catalyst.catalyst_warnings import ZiplineDeprecationWarning
label_desc: Use image node_id 1 to create a new SecurityListSet object from inherited base classes: object with example: obj = SecurityListSet(current_date_func, asset_finder)