code: def test_operators():
      """Assert that the TPOT operators match the output of their sklearn counterparts."""
      for op in tpot_obj.operators:
          check_export.description = (
              "Assert that the TPOT {} operator exports "
              "as expected".format(op.__name__)
          )
          yield check_export, op, tpot_obj
  
imports: from tqdm import tqdm
  import numpy
  from os import remove, path
  from tpot import TPOTClassifier, TPOTRegressor
  from tpot.export_utils import export_pipeline, generate_import_code, _indent, generate_pipeline_code, get_by_name, set_param_recursive
  from tpot.operator_utils import TPOTOperatorClassFactory
  from tpot.config.classifier import classifier_config_dict
  from sklearn.datasets import load_digits
  from sklearn.model_selection import train_test_split
  from deap import creator
  from nose.tools import assert_raises, assert_equal, nottest
label_desc: Use image node_id 8 for calling a global function with example usage: test_operators() without return types