code: def test_empty_options(self):
      # an empty options dictionary should not stay in the
      # list of attributes
  
      # catching warnings
      warns = []
  
      def _warn(msg):
          warns.append(msg)
  
      self.addCleanup(setattr, warnings, "warn", warnings.warn)
      warnings.warn = _warn
      dist = Distribution(
          attrs={
              "author": "xxx",
              "name": "xxx",
              "version": "xxx",
              "url": "xxxx",
              "options": {},
          }
      )
  
      self.assertEqual(len(warns), 0)
      self.assertNotIn("options", dir(dist))
  
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 9 for calling the DistributionTestCase obj's underlying member method code with example usage: obj.test_empty_options() without return types