code: def testAggregateOptions(self):
      file_descriptor = unittest_custom_options_pb2.DESCRIPTOR
      message_descriptor = (
          unittest_custom_options_pb2.AggregateMessage.DESCRIPTOR
      )
      field_descriptor = message_descriptor.fields_by_name["fieldname"]
      enum_descriptor = (
          unittest_custom_options_pb2.AggregateEnum.DESCRIPTOR
      )
      enum_value_descriptor = enum_descriptor.values_by_name["VALUE"]
      service_descriptor = (
          unittest_custom_options_pb2.AggregateService.DESCRIPTOR
      )
      method_descriptor = service_descriptor.FindMethodByName("Method")
  
      # Tests for the different types of data embedded in fileopt
      file_options = file_descriptor.GetOptions().Extensions[
          unittest_custom_options_pb2.fileopt
      ]
      self.assertEqual(100, file_options.i)
      self.assertEqual("FileAnnotation", file_options.s)
      self.assertEqual("NestedFileAnnotation", file_options.sub.s)
      self.assertEqual(
          "FileExtensionAnnotation",
          file_options.file.Extensions[
              unittest_custom_options_pb2.fileopt
          ].s,
      )
      self.assertEqual(
          "EmbeddedMessageSetElement",
          file_options.mset.Extensions[
              unittest_custom_options_pb2.AggregateMessageSetElement.message_set_extension
          ].s,
      )
  
      # Simple tests for all the other types of annotations
      self.assertEqual(
          "MessageAnnotation",
          message_descriptor.GetOptions()
          .Extensions[unittest_custom_options_pb2.msgopt]
          .s,
      )
      self.assertEqual(
          "FieldAnnotation",
          field_descriptor.GetOptions()
          .Extensions[unittest_custom_options_pb2.fieldopt]
          .s,
      )
      self.assertEqual(
          "EnumAnnotation",
          enum_descriptor.GetOptions()
          .Extensions[unittest_custom_options_pb2.enumopt]
          .s,
      )
      self.assertEqual(
          "EnumValueAnnotation",
          enum_value_descriptor.GetOptions()
          .Extensions[unittest_custom_options_pb2.enumvalopt]
          .s,
      )
      self.assertEqual(
          "ServiceAnnotation",
          service_descriptor.GetOptions()
          .Extensions[unittest_custom_options_pb2.serviceopt]
          .s,
      )
      self.assertEqual(
          "MethodAnnotation",
          method_descriptor.GetOptions()
          .Extensions[unittest_custom_options_pb2.methodopt]
          .s,
      )
  
imports: import sys
  from google.protobuf import unittest_custom_options_pb2
  from google.protobuf import unittest_import_pb2
  from google.protobuf import unittest_pb2
  from google.protobuf import descriptor_pb2
  from google.protobuf.internal import api_implementation
  from google.protobuf.internal import test_util
  from google.protobuf import descriptor
  from google.protobuf import descriptor_pool
  from google.protobuf import symbol_database
  from google.protobuf import text_format
label_desc: Use image node_id 11 for calling the DescriptorTest obj's underlying member method code with example usage: obj.testAggregateOptions() without return types