code: def fetch(self):
      return helpers.load_adult_income_dataset()
  
imports: import json
  import random
  import ssl
  import numpy
  import pandas
  import pytest
  from dice_ml.utils import helpers
  from sklearn.model_selection import train_test_split
  from rai_test_utils.datasets.tabular import create_iris_data
  from raiutils.common.retries import retry_function
label_desc: Use image node_id 2 for calling the FetchDiceAdultCensusIncomeDataset obj's underlying member method code with example usage: obj.fetch() and returns: helpers