code: def test_suite():
      suite = unittest.TestSuite()
      suite.addTest(unittest.makeSuite(DistributionTestCase))
      suite.addTest(unittest.makeSuite(MetadataTestCase))
      return suite
  
imports: import os
  import StringIO
  import sys
  import unittest
  import warnings
  import textwrap
  from distutils.dist import Distribution, fix_help_options
  from distutils.cmd import Command
  import distutils.dist
  from test.test_support import TESTFN, captured_stdout, run_unittest, unlink
  from distutils.tests import support
  from distutils import log
label_desc: Use image node_id 1 for calling a global function with example usage: test_suite() and returns: suite