code: def testContainingTypeInEnumDescriptor(self):
      self.assertTrue(unittest_pb2._FOREIGNENUM.containing_type is None)
      self.assertEqual(
          unittest_pb2._TESTALLTYPES_NESTEDENUM.containing_type,
          unittest_pb2.TestAllTypes.DESCRIPTOR,
      )
  
imports: from google.protobuf.internal import test_bad_identifiers_pb2
  from google.protobuf import unittest_custom_options_pb2
  from google.protobuf import unittest_import_pb2
  from google.protobuf import unittest_import_public_pb2
  from google.protobuf import unittest_mset_pb2
  from google.protobuf import unittest_mset_wire_format_pb2
  from google.protobuf import unittest_no_generic_services_pb2
  from google.protobuf import unittest_pb2
  from google.protobuf import service
  from google.protobuf import symbol_database
label_desc: Use image node_id 12 for calling the GeneratorTest obj's underlying member method code with example usage: obj.testContainingTypeInEnumDescriptor() without return types