code: def assertNoWarnings(self):
      self.assertEqual(self.get_logs(WARN), [])
      self.clear_logs()
  
imports: import os
  import re
  import unittest
  from distutils import debug
  from distutils.log import WARN
  from distutils.errors import DistutilsTemplateError
  from distutils.filelist import glob_to_re, translate_pattern, FileList
  from test.test_support import captured_stdout, run_unittest
  from distutils.tests import support
label_desc: Use image node_id 1 for calling the FileListTestCase obj's underlying member method code with example usage: obj.assertNoWarnings() without return types