code: def init_class_fixtures(cls):
      super(LatestTestCase, cls).init_class_fixtures()
      cls.engine = cls.seeded_random_engine
      cls.sids = cls.ASSET_FINDER_EQUITY_SIDS
      cls.assets = cls.engine._finder.retrieve_all(
          cls.ASSET_FINDER_EQUITY_SIDS
      )
  
imports: import operator
  from unittest import skipIf
  from nose_parameterized import parameterized
  from pandas import Timestamp, DataFrame
  from pandas.util.testing import assert_frame_equal
  from zipline.lib.labelarray import LabelArray
  from zipline.pipeline import Pipeline
  from zipline.pipeline.data import USEquityPricing
  from zipline.pipeline.data.dataset import Column
  from zipline.pipeline.data.testing import TestingDataSet
  from zipline.pipeline.domain import US_EQUITIES
  from zipline.testing.fixtures import WithSeededRandomPipelineEngine, WithTradingSessions, ZiplineTestCase
  from zipline.utils.numpy_utils import datetime64ns_dtype
  from zipline.utils.pandas_utils import ignore_pandas_nan_categorical_warning, new_pandas, skip_pipeline_new_pandas
label_desc: Use image node_id 1 for calling the LatestTestCase obj's underlying member method code with example usage: obj.init_class_fixtures(cls) without return types