code: def load_tests(loader, tests, ignore):
      tests.addTests(doctest.DocTestSuite(representation))
      return tests
  
imports: import pandas
  import numpy
  from texthero import representation
  from texthero import preprocessing
  import pytest
  from .conftest import broken_case
  import doctest
  import unittest
  import string
  import math
  import warnings
  from parameterized import parameterized
label_desc: Use image node_id 1 for calling a global function with example usage: load_tests(loader, tests, ignore) and returns: tests