code: def testFileDescriptor(self):
      self.assertEqual(
          unittest_pb2.DESCRIPTOR.name, "google/protobuf/unittest.proto"
      )
      self.assertEqual(
          unittest_pb2.DESCRIPTOR.package, "protobuf_unittest"
      )
      self.assertFalse(unittest_pb2.DESCRIPTOR.serialized_pb is None)
  
imports: import unittest
  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_pb2
  from google.protobuf import unittest_no_generic_services_pb2
  from google.protobuf import service
label_desc: Use image node_id 15 for calling the GeneratorTest obj's underlying member method code with example usage: obj.testFileDescriptor() without return types