code: def test_suite():
      return unittest.makeSuite(CheckTestCase)
  
file_path: catboost/contrib/tools/python/src/Lib/distutils/tests/test_check.py
imports: import textwrap
  import unittest
  from test.test_support import run_unittest
  from distutils.command.check import check, HAS_DOCUTILS
  from distutils.tests import support
  from distutils.errors import DistutilsSetupError
label_desc: Use image node_id 1 for calling a global function with example usage: test_suite() and returns: unittest